Liquid level detection device

Liquid level detecting device

The invention relates to a detecting device, in particular to a liquid level detecting device for automatically detecting the position of a liquid surface.

At present, there are various types of liquid level detecting devices on the market, one of which is a liquid level detector 1 as shown in FIG. 1 , which is installed and connected to an electrolytic cell 10 for detecting the electrolytic cell. The liquid level of the electrolyte 11 in the 10, the liquid level detector 1 includes two connecting tubes 12 connected to the electrolytic cell 10, and a transparent material made between the connecting tubes 12 and The liquid level detecting tube 13 uses the principle of the communicating tube. The liquid level of the electrolyte 11 in the liquid level detecting tube 13 indicates the liquid level of the electrolyte 11 in the electrolytic cell 10, so that the liquid level can be detected. The tube 13 is used to know the stock of the electrolyte 11 in the electrolytic cell 10. If the amount of the electrolyte 11 is lower than the safe amount, it is supplemented to enable the electrolytic cell 10 to continue to operate.

However, viewing the stock of the electrolyte 11 through the liquid level detecting tube 13 is a work that needs to be completed by manual monitoring, and the liquid level detecting tube 13 may be far away from the monitor or the same monitor. At the same time, it is necessary to pay attention to the state of the electrolyte 11 in the plurality of liquid level detecting tubes 13, and if the electrolyte 11 is below the safety stock because it is too busy or negligent, it may not be detected, which may cause the electrolytic cell 10 to be added at an appropriate time. The electrolyte 11 causes a decrease in production efficiency, and more severely, the electrolytic cell 10 may be damaged and the equipment needs to be renewed, which adds a considerable production cost.

The above liquid level detector 1 is exemplified by the application to the electrolyte level detection, but if applied to other types of technical fields, such as hydraulic liquid level detection, etc., it is conceivable that the same should be produced. The problems and shortcomings are obvious. This is indeed the goal of any general practitioner who is familiar with liquid level detection.

Therefore, the object of the present invention is to provide a liquid level detecting device having an automatic prompting function.

Therefore, the liquid level detecting device of the present invention is mounted on a hydraulic operating system powered by a liquid flow, the liquid level detecting device comprising a container, a floating member disposed in the container, and a a magnetic component on the floating member, a magnetic switch fixed to the container, and a warning device electrically connected to the magnetic switch, the container including a container body, and a container body defined by the container body for containing the liquid The floating member is placed in the space and floats on the surface of the liquid. The magnetic switch is fixed to the outer surface of the container body and corresponds to the orientation of the magnetic element on the floating member.

When the stock of the liquid is sufficient, the floating member floats above the magnetic switch and does not sense with the magnetic switch; when the stock of the liquid is insufficient, the floating member is lowered with the liquid surface to the magnetic switch Corresponding position, at this time, the magnetic component disposed on the floating member senses with the magnetic switch to turn on the magnetic switch, thereby starting the warning device to remind the liquid to replenish.

The function of the present invention is that when the floating member descends to a position corresponding to the magnetic switch, the magnetic component disposed on the floating member senses with the magnetic switch to turn on the magnetic switch, thereby automatically starting the warning. , to achieve the effect of automatic prompts.

The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the following description of the preferred embodiments.

In hydraulic actuation systems, hydraulic fluid is the working medium that delivers liquid power. At the same time, it also provides lubrication of hydraulic motors and bearings, as well as cooling, rust and sealing. Therefore, the liquid is not able to maintain the normal operation of the hydraulic actuation system. In the general hydraulic actuation system, a storage tank is arranged to store and supply the liquid required for the hydraulic actuation system to operate.

Because the hydraulic actuation system will use the oil seal as the device to prevent the leakage of hydraulic oil in the overall design, the hydraulic seal system will cause oil leakage and volatilization during the operation due to the unsound seal of the oil seal, thus causing oil. The stock is reduced with long-term use. Therefore, the liquid storage detecting device 2 is designed to automatically raise an alarm to notify the operator to replenish the oil.

Referring to FIG. 2, a preferred embodiment of the liquid level detecting device 2 of the present invention is disposed on a single cutter cylinder 100 (this is a practical aspect of the hydraulic actuation system), and the detailed configuration of the cutter cylinder 100 can be Refer to the Patent Application No. 97221003 of the Republic of China, which will not be repeated here.

Of course, in addition to installing the novel liquid level detecting device 2 in the tool cylinder 100, it can be mounted on other types of hydraulic actuation systems, such as hydraulic cylinders, for those of ordinary skill in the art. , hydraulic brake system, etc., so should not be limited to the description of this embodiment.

Referring to FIG. 3, the detailed structure of the liquid level detecting device 2 includes a container 21, a cover 22 covering the container 21, a floating member 23 disposed in the container 21, and a floating device 23 disposed thereon. a magnetic component 24 on the member 23, a magnetic switch 25 fixed to the container 21, and a warning device 26 electrically connected to the magnetic switch 25. The container 21 includes a container body 211, and a container body The container 212 defines a space 212 for containing a liquid. The container body 211 has a body portion 213, a protrusion portion 214 extending from the body portion 213, and an upper opening 215 formed in the protrusion portion 214.

In the embodiment, the cover body 22 and the protruding portion 214 of the container body 211 are simultaneously worn by a plurality of screws 3 so that the cover 22 is detachably disposed on the protruding portion 214 to cover The upper opening 215, the floating member 23 is disposed in the space 212 and floats on the surface of the liquid. The magnetic switch 25 is fixed on the outer surface of the body portion 213 of the container body 211, and is correspondingly disposed on the floating member 23. The orientation of the magnetic element 24 on it.

In a general use state, the liquid is contained in the space 212 of the container 21, and the floating member 23 floats on the surface of the liquid, and when the stock of the liquid is sufficient, the floating member 23 floats above the magnetic switch 25. It does not sense each other with the magnetic switch 25.

Referring to FIG. 4, when the liquid gradually decreases with the use of the hydraulic actuation system, the floating member 23 will descend with the liquid level, and when the floating member 23 descends to a height corresponding to the magnetic switch 25, at this time, The magnetic element 24 disposed on the floating member 23 and the magnetic switch 25 sense each other to turn on the magnetic switch 25, thereby automatically activating the warning device 26 to remind the liquid to replenish. By the magnetic element 24 and the magnetic switch 25 being inductively connected to each other, the warning device 26 is automatically activated to remind the liquid to be replenished, and no manual monitoring is needed, which can effectively avoid inadvertent failure. The liquid is replenished, causing damage to the knife cylinder 100 (see Fig. 2).

In this embodiment, the container body 211 is a transparent material, and can be used to watch the floating member 23 moving with the liquid surface, and the warning device 26 is a program-controlled computer. When the warning device 26 is activated, the information can be Displayed on the computer screen in graphics or text. Of course, when the warning device 26 is activated, the sound may be sounded to remind the liquid to be replenished. Similarly, the warning device 26 may also be in the form of a buzzer, and when activated, an alarm sounds to remind the liquid to replenish. The aspect of the warning device 26 is a manner that can be selected according to requirements in actual use, and therefore should not be limited to the content disclosed in the embodiment.

With the above design, the liquid level detecting device 2 of the present invention has the following advantages when actually used:

(1) The device is simple: the liquid level detecting device 2 is electrically connected to the magnetic switch 25 fixed on the outer surface of the container body 211 by the magnetic element 24 disposed on the floating member 23 to turn on the magnetic switch 25 And the warning device 26 is activated to perform the warning function, and the hole in the electrolytic cell 10 is opened to connect the liquid level detecting tube 13 to monitor the electrolyte in the electrolytic cell 10, as in the prior art. 11 stocks, or the installation of complex sensing devices, so it is indeed easy to achieve equipment.

(2) Automatic reminding action: when the floating member 23 descends to the height sensed by the magnetic switch 25, the magnetic switch 25 can be turned on and the warning device 26 can be automatically activated to achieve the automatic reminding function. It can effectively avoid the problem of inadvertent replenishment of liquid in time.

(3) Effective cost saving: As described above, the liquid level detecting device 2 automatically reminds the user not only can save manpower, but also effectively reduce the chance that the knife cylinder 100 will be damaged because the liquid is not replenished in time, thereby reducing Expenditure on maintenance costs.

(4) It is easy to perform the replenishing operation: since the lid body 22 is detachably provided to the projection portion 214 of the container body 211, the replenishing operation can be performed by removing the lid body 22, and the same can be used. The way to replace the floating member 23 with the magnetic element 24 is quite convenient in operation.

In summary, the liquid level detecting device 2 uses the magnetic element 24 and the magnetic switch 25 to sense the conduction between each other, so that the device is simple, easy to perform the replenishing action, and can also achieve the function of automatic reminding, thereby effectively saving the maintenance cost. So, it is indeed possible to achieve the purpose of this new type.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

<p>100. . . Knife cylinder</p><p>2. . . Liquid level detecting device</p><p>twenty one. . . container</p><p>211. . . Container body</p><p>212. . . space</p><p>213. . . Body part</p><p>214. . . Protrusion</p><p>215. . . Upper opening</p><p>twenty two. . . Cover</p><p>twenty three. . . Floating piece</p><p>twenty four. . . Magnetic component</p><p>25. . . Magnetic switch</p><p>26. . . Warning device</p><p>3. . . Screw</p>

Figure 1 is a cross-sectional view showing a conventional liquid level detector;

Figure 2 is a cross-sectional view showing a preferred embodiment of the liquid level detecting device of the present invention, mounted on a hydraulic actuation system;

Figure 3 is a perspective view of the three-dimensional appearance of the preferred embodiment; and

FIG. 4 is a schematic view for explaining the preferred embodiment of FIG. 3 in which the magnetic element and the magnetic switch are mutually inductively conductive.