CN220333655U - Proximity switch type liquid level display controller - Google Patents

Abstract

The utility model relates to the technical field of electric automation, and aims to provide a proximity switch type liquid level display controller which comprises a glass tube arranged at the bottom of the outer side of a storage tank, wherein the bottom end of the glass tube is communicated with the storage tank, an upper limit proximity switch and a lower limit proximity switch are respectively arranged at the upper end and the lower end of the outer side wall of the glass tube, a trigger capable of floating on liquid in the glass tube is arranged in the glass tube, the trigger corresponds to the lower limit proximity switch and the upper limit proximity switch, and the lower limit proximity switch and the upper limit proximity switch are used for controlling the start-stop operation of a conveying pump connected with the storage tank. The utility model can not only clearly judge the liquid level height in the storage tank, but also realize the limit value reminding of the liquid level, improves the reliability of the liquid level display of the storage tank, is suitable for various indoor and outdoor non-corrosive liquid storage tanks, has simple manufacture, low cost, high sensitivity, stable operation and low failure rate, and provides guarantee for production stability.

Description

Proximity switch type liquid level display controller

Technical Field

The utility model relates to the technical field of electric automation, in particular to a proximity switch type liquid level display controller.

Background

The liquid level display is used for visually observing the liquid level in the equipment and comprises a turning plate type liquid level indicator, a frosting type liquid level indicator, a glass tube type liquid level indicator, a oil type liquid level indicator, a remote liquid level indicator and the like. The liquid level controller is used for controlling the high liquid level and the low liquid level by a mechanical or electronic method, and can control an electromagnetic valve, a water pump and the like, thereby realizing semi-automation or full automation. The device integrating the liquid level display and the liquid level control is less and has higher price.

The frosting type liquid level indicator is easy to generate the phenomenon of frosting deficiency (sometimes frosting is also generated at the part without liquid), so that misunderstanding is brought to operators. When the glass tube type liquid level indicator is used on low-temperature equipment, the surface frosting is easy to influence the sight, and the glass tube is extremely easy to break. The oil-in-oil type liquid level indicator is complex to manufacture, high in cost and high in failure. The liquid level controller is provided with an electrode type liquid level controller, a floating ball type liquid level controller and the like, the electrode type liquid level controller is easy to fail or malfunction due to scale coverage, and the sensitivity of the floating ball type liquid level controller is low. In addition, in the existing market, devices integrating liquid level display and liquid level control are fewer.

Disclosure of Invention

The utility model aims to provide a proximity switch type liquid level display controller so as to solve the problems in the background art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a proximity switch formula liquid level display controller, includes the glass pipe of installing in the outside bottom of storage tank, the bottom of glass pipe is linked together with the storage tank, and the upper and lower both ends of glass pipe lateral wall are provided with limit proximity switch and lower limit proximity switch respectively, are provided with the trigger that can float on the intraductal liquid of glass in the glass pipe, and the trigger is corresponding with limit proximity switch and last limit proximity switch down, and limit proximity switch and last limit proximity switch are used for controlling the operation of stopping of opening of the delivery pump that links to each other with the storage tank down.

The upper limit proximity switch and the lower limit proximity switch are respectively arranged on the upper limit proximity switch bracket and the lower limit proximity switch bracket.

The upper limit proximity switch support and the lower limit proximity switch support are of arc-shaped clamp structures and are fixedly mounted on the glass tube through bolts.

The trigger comprises a metal block and a floating body, wherein the metal block is fixedly arranged on the floating body.

The metal block and the floating body are of cylindrical structures, and the diameters of the metal block and the floating body are slightly smaller than the inner diameter of the glass tube.

The length ratio of the metal block to the floating body is 1 at most: 3.

the filter screen is installed to the bottom of glass pipe.

The top end of the glass tube is provided with a tube cap.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

according to the utility model, through the combination of the proximity switch and the glass tube, the liquid level height in the storage tank can be clearly judged, the reminding of the limit value of the liquid level can be realized, and the reliability of the liquid level display of the storage tank is improved; simultaneously through set up pipe cap and filter screen respectively in the top and the bottom of glass pipe, can prevent effectively that debris from getting into inside the glass pipe, avoided external debris to the influence of storage tank liquid level, be applicable to various indoor and outdoor non-corrosiveness liquid storage tanks, simple manufacture, low cost, sensitivity is high, and the operation is stable, and the fault rate is low, provides the guarantee for production stability.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a trigger according to an embodiment of the present utility model.

Figure number and name: glass tube 1, trigger 2, upper limit proximity switch 3, lower limit proximity switch 4, upper limit proximity switch support 5, lower limit proximity switch support 6, pipe cap 7, filter screen 8, metal block 9, body 10.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the proximity switch type liquid level display controller comprises a glass tube 1, wherein the bottom end of the glass tube 1 is arranged at the bottom of the outer side of a storage tank and is communicated with the storage tank, liquid in the storage tank can freely enter and exit the glass tube 1, a filter screen 8 is arranged at the bottom of the glass tube 1 to prevent sundries from entering the glass tube 1, an upper limit proximity switch bracket 5 and a lower limit proximity switch bracket 6 are arranged on the glass tube 1, the upper limit proximity switch bracket 5 and the lower limit proximity switch bracket 6 are of arc-shaped clamp structures and are fixedly arranged at positions of the glass tube 1 corresponding to the upper limit liquid level and the lower limit liquid level of the storage tank, an upper limit proximity switch 3 and a lower limit proximity switch 4 are respectively arranged on the upper limit proximity switch bracket 5 and the lower limit proximity switch bracket 6, the upper limit proximity switch 3 and the lower limit proximity switch 4 are both connected with a conveying pump, the input end of the conveying pump is connected with an external liquid source, and the output end of the conveying pump is connected with the storage tank and is used for supplementing liquid into the storage tank; the trigger 2 is arranged in the glass tube 1, the trigger 2 floats on liquid in the glass tube 1, and a tube cap 7 is arranged at the top of the glass tube 1 to prevent sundries from entering the glass tube 1 from the top.

As shown in fig. 2, the trigger 2 comprises a metal block 9 and a floating body 10, wherein the metal block 9 is made of aluminum, the floating body 10 can be made of a bright red hollow plastic cylinder, the metal block 9 is fixedly arranged on the floating body 10, and the upper part or the lower part of the floating body 10 can be determined according to the precision requirement on liquid level control. The metal block 9 and the floating body 10 are of cylindrical structures, and the diameters of the metal block 9 and the floating body 10 are slightly smaller than the inner diameter of the glass tube 1. The trigger 2 must be guaranteed to float at the liquid level, as is available according to the buoyancy formula f=pgv, the length ratio of the metal block 9 to the float 10 being at most 1:3.

the working principle of the utility model is as follows: the trigger 2 floats on the liquid in the glass tube 1, and the liquid level is indicated along with the up-and-down floating of the liquid level, when the liquid level in the storage tank is lowered to the lower limit, the trigger 2 is lowered to the lower limit proximity switch 4 along with the liquid level, the lower limit proximity switch 4 acts, the conveying pump starts, the liquid starts to be added in the storage tank, the liquid level starts to rise, and when the trigger 2 is raised to the upper limit proximity switch 3 along with the liquid level, the upper limit proximity switch 3 acts, and the conveying pump stops. And so forth.

Claims (8)

1. The utility model provides a proximity switch formula liquid level display controller, includes glass pipe (1) of installing in the outside bottom of storage tank, its characterized in that: the bottom of glass pipe (1) is linked together with the storage tank, and the upper and lower both ends of glass pipe (1) lateral wall are provided with limit switch (3) and lower limit switch (4) respectively, are provided with trigger (2) that can float on glass pipe (1) internal liquid in glass pipe (1), and trigger (2) are corresponding with lower limit switch (4) and last limit switch (3), and lower limit switch (4) and last limit switch (3) are used for controlling the start-stop operation of the delivery pump that links to each other with the storage tank.

2. A proximity switch type liquid level display controller as claimed in claim 1, wherein: the upper limit proximity switch (3) and the lower limit proximity switch (4) are respectively arranged on an upper limit proximity switch bracket (5) and a lower limit proximity switch bracket (6).

3. A proximity switch type liquid level display controller as claimed in claim 2, wherein: the upper limit proximity switch bracket (5) and the lower limit proximity switch bracket (6) are of arc-shaped clamp structures and are fixedly arranged on the glass tube (1) through bolts.

4. A proximity switch type liquid level display controller as claimed in claim 1, wherein: the trigger (2) comprises a metal block (9) and a floating body (10), wherein the metal block (9) is fixedly arranged on the floating body (10).

5. A proximity switch type liquid level display controller as claimed in claim 4, wherein: the metal block (9) and the floating body (10) are of cylindrical structures, and the diameters of the metal block (9) and the floating body (10) are slightly smaller than the inner diameter of the glass tube (1).

6. A proximity switch type liquid level display controller as defined in claim 5, wherein: the length ratio of the metal block (9) to the floating body (10) is 1 at most: 3.

7. a proximity switch type liquid level display controller as claimed in claim 1, wherein: a filter screen (8) is arranged at the bottom end of the glass tube (1).

8. A proximity switch type liquid level display controller as claimed in claim 1, wherein: the top end of the glass tube (1) is provided with a tube cap (7).