Coal mine sump water level measuring device
By introducing an electric extension push rod and a conical shrink sleeve into the coal mine water level measuring device, the problem of needing to manually clean the filter screen and coal sludge in the existing technology has been solved, realizing the self-cleaning function without removing the pressure level gauge, thus improving convenience and measurement accuracy.
Patent Information
- Application Number
- CN202520240517.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing coal mine water level measuring devices using submersible pressure level gauges require manual cleaning of the coal sludge on the filter screen periodically, resulting in poor convenience. Furthermore, repeated calibration of the measurement installation position affects measurement accuracy.
A self-cleaning coal mine water tank level measuring device was designed. An electric extension push rod drives a cleaning brush to clean the coal sludge on the surface of the filter screen. A conical shrink sleeve ensures that the cleaning brush does not contact the surface of the pressure level gauge, achieving synchronous sliding cleaning, avoiding gaps and maintaining the isolation effect.
This allows for cleaning operations to be completed without removing and reinstalling the pressure level gauge, improving measurement convenience and accuracy, reducing manual intervention, and simplifying the operation process.
Smart Images
Figure CN223769596U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of measuring equipment, concretely relates to a coal mine sump water level measuring device. BACKGROUND
[0002] The water level measuring device is mainly divided into the throw-in type pressure liquid level meter and the radar type pressure liquid level meter, due to the restriction of installation position and installation mode, the coal mine sump usually adopts the throw-in type water level meter to measure the water level in the reservoir, due to the coal bunker environment in the operation process, a large amount of coal slime suspension is generated, thereby leading to the error between the actual density of the sump liquid and the default water density of the sensor, and the measurement accuracy is affected.Therefore, the prior art installs the filter screen outside the throw-in type pressure liquid level meter to intercept the coal slime, although this kind of use mode can effectively reduce the error between the actual density and the default water density, but the pressure liquid level meter in the throw-in water tank needs to be taken out regularly, and the coal slime on the surface of the measurement cycle filter screen is cleaned, so the pressure liquid level meter needs to be repeatedly put in and taken out during actual operation, and the installation position is calibrated many times, so the convenience is not ideal. UTILITY MODEL CONTENTS
[0003] The utility model provides a coal mine sump water level measuring device with the characteristics of self-cleaning.
[0004] The utility model provides the following technical scheme: a coal mine sump water level measuring device, including pressure liquid level meter and installation frame, the pressure liquid level meter shell body fixedly connected with fixed link, the fixed link outside slidingly connected with installation top cover, the installation top cover with The fixed link between fixedly connected with conical shrink sleeve, installation bottom cover is arranged at the bottom of installation top cover, installation top cover With Installation bottom cover all with installation frame fixed connection, the installation bottom cover outside is equipped with directional movable collar, the directional movable collar With Installation bottom cover slidingly connected, the directional movable collar in fixedly connected with a plurality of annular fixed buckles, the annular fixed buckle The end fixedly connected with cleaning brush close to installation bottom cover.
[0005] Among them, the inside of the installation frame is fixedly connected with an electric extension push rod, and the output end of the electric extension push rod is fixedly connected with a lifting end connecting rod, and one end of the lifting end connecting rod is fixedly connected with the fixed link.
[0006] Among them, the output end of the electric extension push rod is also fixedly connected with a fixed cross bar, one end of the directional movable collar is fixedly connected with a connecting movable rod, and the connecting movable rod is fixedly connected with the fixed cross bar.
[0007] Among them, the cleaning brush is annularly distributed on the inside of the directional movable collar, and a plurality of cleaning brushes are fixedly connected.
[0008] The filter wire screen is fixedly connected between the installation top cover and the installation bottom cover and on the inner side of the installation bottom cover.
[0009] The conical contraction sleeve is made of rubber.
[0010] The beneficial effect of the utility model is that: during the cleaning period, the electric extension push rod drives the connecting movable rod to drive the directional movable sleeve ring to reciprocate up and down, the directional movable sleeve ring cleans the surface of the filter wire screen through the cleaning brush arranged on the internal annular fixed buckle, the coal slurry adhered to the surface of the filter wire screen is separated, in the cleaning process, the cleaning brush does not contact the surface of the pressure liquid level meter, but slides synchronously along the inner side of the installation top cover along with the expansion and contraction of the conical contraction sleeve, the contact force between the cleaning brush and the pressure probe surface of the pressure liquid level meter is avoided, the installation top cover is blocked during the sliding cleaning, the gap during the synchronous movement of the pressure liquid level meter along the inner side of the installation top cover is avoided, the isolation effect of the coal slurry is maintained, the cleaning operation in the water sump is directly completed, the pressure liquid level meter does not need to be taken out and re-put in after the installation position is calibrated and measured, and the convenience is effectively improved.
[0011] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a three-dimensional structure schematic diagram of the utility model;
[0013] Fig. 2 It is a side view of the utility model;
[0014] Fig. 3 It is a schematic diagram of the filter wire screen in the utility model in the removal state.
[0015] In the figure: 1, pressure liquid level meter; 11, fixed rod; 2, installation frame; 21, electric extension push rod; 22, lifting end connecting rod; 23, fixed cross bar; 3, installation top cover; 31, conical contraction sleeve; 32, filter wire screen; 4, installation bottom cover; 5, directional movable sleeve ring; 51, annular fixed buckle; 52, cleaning brush; 53, connecting movable rod. DETAILED DESCRIPTION
[0016] Please refer to Figs. 1-3The utility model provides following technical scheme: a coal mine sump water level measuring device, including pressure liquid level meter 1 and installation frame 2, the fixed connection of pressure liquid level meter 1 shell body has fixed rod 11, the outer side of fixed rod 11 is slidably connected with installation top cover 3, and the fixed connection of installation top cover 3 and fixed rod 11 has conical shrink sleeve 31, and installation top cover 3 bottom is provided with installation bottom cover 4, and installation top cover 3 and installation bottom cover 4 all are fixedly connected with installation frame 2, and the outer side of installation bottom cover 4 is provided with directional movable collar 5, and directional movable collar 5 is slidably connected with installation bottom cover 4, and the fixed connection of several annular fixed buckles 51 in the inner side of directional movable collar 5, and the fixed connection of annular fixed buckle 51 near installation bottom cover 4 one end has cleaning brush 52.
[0017] In this embodiment, it should be noted that the pressure liquid level meter 1 is a conventional measurement instrument selected in the art, and the improvement of the present application is not an improvement of 1, but to solve the problem that after adding the filter screen in the prior art, the coal slurry on the surface of the filter screen needs to be cleaned repeatedly by putting and taking out the pressure liquid level meter and calibrating the installation position multiple times, so that the convenience is not ideal.
[0018] To solve this problem, the utility model can drive the directional movable collar 5 to move up and down reciprocally by the electric extension push rod 21 during the cleaning period, so that the cleaning brush 52 provided by the internal annular fixed buckle 51 cleans the surface of the filter screen 32, and the coal slurry adhered to the surface of the filter screen 32 is separated. Further improvement is that during the cleaning process, the cleaning brush 52 does not come into contact with the surface of the pressure liquid level meter 1 by setting the lifting end connecting rod 22 and the fixed rod 11, so that the pressure liquid level meter 1 can slide synchronously along the inside of the installation top cover 3 by the pushing of the electric extension push rod 21 and the extension and contraction of the conical shrink sleeve 31, avoiding the contact force between the cleaning brush 52 and the surface of the pressure probe of the pressure liquid level meter 1, and at the same time, the conical shrink sleeve 31 is set to block the sliding cleaning of the installation top cover 3, ensuring that there is no large gap during the synchronous movement of the pressure liquid level meter 1 along the inside of the installation top cover 3, maintaining the isolation effect of the coal slurry, and thus the cleaning operation can be directly completed in the sump without the need to calibrate the installation position and repeatedly take out and put in the pressure liquid level meter 1.
[0019] The inside of the installation frame 2 is fixedly connected with the electric extension push rod 21, and the output end of the electric extension push rod 21 is fixedly connected with the lifting end connecting rod 22, and one end of the lifting end connecting rod 22 is fixedly connected with the fixed rod 11.
[0020] The output end of the electric extension push rod 21 is also fixedly connected with the fixed cross rod 23, one end of the directional movable collar 5 is fixedly connected with the connecting movable rod 53, and the connecting movable rod 53 is fixedly connected with the fixed cross rod 23.
[0021] The cleaning brushes 52 are arranged in a ring on the inner side of the directional movable collar 5, and several cleaning brushes 52 are fixedly connected to each other.
[0022] In this embodiment, the cleaning brush 52 is a traditional rubber brush. When the annular fixing buckle 51 slides and retracts to the outside of the mounting bottom cover 4, the cleaning brush 52 is pressed to the inside of the directional movable collar 5 by the limiting effect of the directional movable collar 5. When the directional movable collar 5 slides along the outside of the filter mesh 32, the cleaning brush 52 comes out from the inside of the directional movable collar 5 and cleans along the surface of the filter mesh 32.
[0023] A filter screen 32 is fixedly connected between the top cover 3 and the bottom cover 4, as well as inside the bottom cover 4. The pressure level gauge 1 slides on the inside of the filter screen 32.
[0024] The conical shrink sleeve 31 is made of rubber. The conical shrink sleeve 31 made of rubber can extend into a conical shape or shrink into a disc shape when the pressure level gauge 1 is moved by the fixed rod 11. This can maintain the sliding seal at the connection between the mounting top cover 3 and the pressure level gauge 1, and prevent the formation of sliding gaps that allow large impurities to enter the inner side of the filter screen 32.
[0025] The working principle of this utility model is as follows: During the cleaning cycle, the electric extension push rod 21 drives the connecting rod 53 to move the directional movable collar 5 up and down reciprocally. This causes the directional movable collar 5 to clean the surface of the filter screen 32 through the cleaning brush 52 set in the internal annular fixing buckle 51, removing the coal sludge adhering to the surface of the filter screen 32. Simultaneously, during the cleaning process, the lifting end connecting rod 22 and the fixing rod 11 are configured to prevent the cleaning brush 52 from contacting the surface of the pressure level gauge 1 during operation. Instead, it slides synchronously along the inner side of the mounting top cover 3 as the conical contraction sleeve 31 extends and retracts, avoiding contact. The cleaning brush 52 makes contact with the pressure probe surface of the pressure level gauge 1. At the same time, the tapered shrink sleeve 31 seals the mounting top cover 3 during sliding cleaning, ensuring that there is no large gap during the synchronous movement of the pressure level gauge 1 along the inner side of the mounting top cover 3, maintaining the isolation effect on the coal sludge. Thus, the cleaning operation can be completed directly in the water tank. After cleaning, the electric extension push rod 21 is controlled to retract, so that the directional moving collar 5 returns to the outside of the mounting bottom cover 4, and the pressure level gauge 1 is placed back inside the filter screen 32, thus quickly returning to its original position and continuing to measure the water level.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A coal mine sump water level measuring device, comprising a pressure liquid level meter (1) and a mounting frame (2), characterized in that: The pressure liquid level meter (1) housing fixedly connected with a fixed rod (11), the fixed rod (11) outside slidingly connected with a mounting top cover (3), the mounting top cover (3) and the fixed rod (11) between fixedly connected with a tapered shrink sleeve (31), the mounting top cover (3) bottom is provided with a mounting bottom cover (4), the mounting top cover (3) and the mounting bottom cover (4) are fixedly connected with the mounting frame (2), the mounting bottom cover (4) outside is provided with a directional movable collar (5), the directional movable collar (5) and the mounting bottom cover (4) slidingly connected, the directional movable collar (5) inside fixedly connected with a plurality of annular fixed buckle (51), the annular fixed buckle (51) is fixedly connected with a cleaning brush (52) near one end of the mounting bottom cover (4).
2. The coal mine sump water level measuring device according to claim 1, characterized in that: The mounting frame (2) inside fixedly connected with an electric extension push rod (21), the output end of the electric extension push rod (21) fixedly connected with a lifting end connecting rod (22), one end of the lifting end connecting rod (22) and the fixed rod (11) fixedly connected.
3. The coal mine sump water level measuring device according to claim 2, characterized in that: The output end of the electric extension push rod (21) is also fixedly connected with a fixed cross bar (23), one end of the directional movable collar (5) is fixedly connected with a connecting live rod (53), the connecting live rod (53) and the fixed cross bar (23) fixedly connected.
4. The coal mine sump water level measuring device according to claim 1, characterized in that: The cleaning brush (52) is annularly distributed on the inside of the directional movable collar (5), a plurality of the cleaning brush (52) between fixedly connected.
5. The coal mine sump water level measuring device according to claim 1, characterized in that: The mounting top cover (3) and the mounting bottom cover (4) and the mounting bottom cover (4) inside are all fixedly connected with a filter screen (32), the pressure liquid level meter (1) slidingly connected on the inside of the filter screen (32).
6. The coal mine sump water level measuring device according to claim 1, characterized in that: The tapered shrink sleeve (31) is made of rubber material.