Air tightness inspection tool for drainage pump for coal mine
By designing an air tightness test tool for coal mine drainage pumps with an air storage chamber, a pressure measuring cylinder and a flashing light, the problem that traditional tools cannot accurately monitor pressure and detect abnormalities in a timely manner is solved, and safe and convenient air tightness testing is achieved.
Patent Information
- Application Number
- CN202422853486.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Traditional coal mine drainage pump air tightness test tools are unable to accurately monitor pressure values, resulting in excessive pressure that damages the tool or pump, and it is difficult to detect abnormal conditions in a complex environment in a timely manner.
An air tightness inspection tool including an air storage chamber, a pressure measuring cylinder, a flashing light, and a motor drive is designed. The pressure is monitored through an isolation seat and a conductive sheet. The flashing light indicates abnormalities, the motor assists in pressurizing, and the exhaust pipe automatically releases the pressure.
It realizes real-time and accurate monitoring of pressure, notifies abnormalities in time, avoids tool damage, improves detection safety and convenience, reduces labor intensity, and quickly reaches the detection pressure.
Smart Images
Figure CN223376867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air tightness testing, in particular to an air tightness testing tool for a drainage pump used in coal mines. Background Art
[0002] Due to the special environment of coal mines, the reliability of the drainage system is related to the safety of the entire mine. If the drainage pump cannot drain water effectively, water accumulation underground may cause collapse, submergence of equipment and other accidents. In order to avoid the air tightness problem of the coal mine drainage pump, which may lead to a decrease in its water absorption capacity during operation, it is necessary to conduct an air tightness test on the coal mine drainage pump.
[0003] However, traditional coal mine drainage pump air tightness test tools cannot accurately know the pressure value during the test, resulting in excessive pressure during the air tightness test due to unclear pressure size, damaging the test tool or the drainage pump being tested. In addition, coal mines are in a complex working environment, and it is difficult for workers to detect pressure anomalies in time at a long distance or in visual blind spots, making it difficult to quickly determine whether the test status is normal.
[0004] Therefore, it is necessary to provide a new coal mine drainage pump air tightness inspection tool to solve the above technical problems. Utility Model Content
[0005] In order to overcome the technical problem solved by the utility model, an air tightness testing tool for a drainage pump for a coal mine is provided, which is easy to use and can quickly allow workers to clearly detect whether the pressure is abnormal and release excess gas.
[0006] In order to solve the above technical problems, the utility model provides an air tightness inspection tool for a coal mine drainage pump, including: a placement plate, an air storage chamber is fixedly installed on the top of the placement plate, a connecting pipe is fixedly installed on one side of the air storage chamber, a pressure measuring cylinder is fixedly installed on the top of the air storage chamber, an isolation seat is provided in the pressure measuring cylinder, a first spring is fixedly installed on the top of the isolation seat, the other end of the first spring is fixedly connected to the pressure measuring cylinder, a plurality of first conductive plates and a flashing light are fixedly installed on one side of the pressure measuring cylinder, a second conductive plate is fixedly installed on the side of the isolation seat close to the first conductive plate, the second conductive plate is adapted to the first conductive plate, a second pipe is fixedly installed on the bottom of the pressure measuring cylinder, an exhaust cylinder is rotatably sealed on the top of the pressure measuring cylinder, an exhaust pipe is fixedly installed on the top of the exhaust cylinder, an isolation plate is provided in the exhaust cylinder, and a second exhaust hole and a first exhaust hole are respectively provided on both sides and the top of the inner wall of the exhaust cylinder.
[0007] Preferably, an air cylinder is fixedly installed on the top of the placement plate, a drive shaft is slidably installed in the air cylinder, one end of the drive shaft extends outside the air cylinder, a first motor is fixedly installed on the top of the placement plate, a rotating disk is fixedly sleeved on the output shaft of the first motor, a connecting rod is rotatably installed on one side of the rotating disk, the end of the connecting rod away from the rotating disk is rotatably connected to the drive shaft, a first pipe is fixedly installed on one side of the air cylinder, and the other end of the first pipe is fixedly connected to the air storage chamber.
[0008] Preferably, a mounting hole is provided on the top of the air storage chamber, a sealing ring is fixedly installed in the mounting hole, and the bottom end of the second pipe passes through the sealing ring and extends into the air storage chamber.
[0009] Preferably, a second spring is fixedly mounted on the top inner wall of the isolation plate, and the other end of the second spring is fixedly connected to the isolation plate.
[0010] Preferably, a second flow hole is provided in the isolation seat, and a first flow hole is also provided on the isolation seat, and the first flow hole is communicated with the second flow hole.
[0011] Preferably, an air delivery pipe is sealedly installed at one end of the connecting pipe away from the air storage chamber, and a pressure gauge is also fixedly installed on the connecting pipe.
[0012] Compared with related technologies, the air tightness test tool for coal mine drainage pumps provided by the utility model has the following beneficial effects:
[0013] The utility model provides an air tightness test tool for a drainage pump for a coal mine, which can monitor the pressure value in real time and accurately through the cooperation of an isolation seat, a first flow hole, a second flow hole, a first spring, a second conductive sheet, a first conductive sheet, a flashing light and a second pipe, so as to help the staff to better control the pressure and avoid damage to the drainage pump or tool by excessive pressure. Secondly, in the case of dim light or the staff's sight cannot always pay attention to the detection tool, when the second conductive sheet contacts the first conductive sheet and makes the flashing light flash, the staff can be informed of the detection status in time. For example, when the pressure is abnormal, the flashing light can quickly remind the staff, thereby improving the safety and convenience of the detection process; through the exhaust pipe, the isolation plate, the second exhaust hole, the first exhaust hole, the second The spring and the exhaust pipe cooperate with each other. During the inspection process, when the pressure accidentally rises and exceeds the limit that the tool can withstand, the exhaust pipe can automatically release the pressure to avoid the tool from breaking due to excessive pressure, and prevent excessive pressure from causing damage to the inspection tool itself; through the cooperation of the air cylinder, the connecting rod, the rotating disc, the first motor, the drive shaft and the first pipeline, the first motor drives the air cylinder through the connecting rod to pressurize the drainage pump, which can quickly increase the pressure. Compared with manual inflation, the required pressure value can be reached in a shorter time, thereby saving inspection time and reducing labor intensity. Secondly, in the coal mine working environment, manual operation of the air cylinder is relatively laborious. Using the first motor to drive the air cylinder to pressurize the drainage pump can make the staff much more relaxed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic structural diagram of a preferred embodiment of the utility model for a coal mine drainage pump air tightness test tool;
[0015] Figure 2 for Figure 1 The rear side view of the structure is shown;
[0016] Figure 3 for Figure 2 The enlarged cross-sectional view of the structure of part B is shown;
[0017] Figure 4 for Figure 2 The enlarged cross-sectional view of the structure of part B is shown;
[0018] Figure 5 for Figure 1 A schematic cross-sectional view of the structure of part A shown;
[0019] Figure 6 for Figure 2 The C-section structure is shown in an enlarged schematic diagram.
[0020] Icons: 1-placement plate; 2-air storage chamber; 3-connecting pipe; 4-air supply pipe; 5-pressure gauge; 6-flashing light; 7-pressure measuring cylinder; 8-first motor; 9-rotating disc; 10-connecting rod; 11-driving shaft; 12-inflator; 13-exhaust cylinder; 14-exhaust pipe; 15-first pipeline; 16-first spring; 17-first conductive sheet; 18-second pipeline; 19-sealing ring; 20-second conductive sheet; 21-isolation seat; 22-first flow hole; 23-second flow hole; 24-first exhaust hole; 25-second exhaust hole; 26-isolation plate; 27-second spring. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the utility model for a coal mine drainage pump air tightness test tool; Figure 2 for Figure 1 The rear side view of the structure is shown; Figure 3 for Figure 2 The enlarged cross-sectional view of the structure of part B is shown; Figure 4 for Figure 2 The enlarged cross-sectional view of the structure of part B is shown; Figure 5 for Figure 1 A schematic cross-sectional view of the structure of part A shown; Figure 6 for Figure 2The enlarged cross-sectional view of the structure of part C is shown. The air tightness test tool for the drainage pump used in coal mines includes: a placement plate 1, an air storage chamber 2 is fixedly installed on the top of the placement plate 1, a connecting pipe 3 is fixedly installed on one side of the air storage chamber 2, a pressure measuring cylinder 7 is fixedly installed on the top of the air storage chamber 2, an isolation seat 21 is provided in the pressure measuring cylinder 7, a first spring 16 is fixedly installed on the top of the isolation seat 21, the other end of the first spring 16 is fixedly connected to the pressure measuring cylinder 7, a plurality of first conductive sheets 17 and a flashing light 6 are fixedly installed on one side of the pressure measuring cylinder 7, a second conductive sheet 20 is fixedly installed on the side of the isolation seat 21 close to the first conductive sheet 17, and the second conductive sheet 20 is adapted to the first conductive sheet 17. If the drainage pump has leakage, The pressure measuring tube 7 is exposed, the isolation seat 21 drops, the second conductive sheet 20 contacts the second or third first conductive sheet 17 from the top, and the second or third flashing light 6 lights up. When the flashing light 6 flashes, the staff can be informed of the detection status in time. For example, when the pressure is abnormal, the flashing light 6 can quickly remind the staff. The bottom of the pressure measuring tube 7 is fixedly installed with a second pipe 18, the top of the pressure measuring tube 7 is rotatably sealed and installed with an exhaust cylinder 13, the top of the exhaust cylinder 13 is fixedly installed with an exhaust pipe 14, an isolation plate 26 is provided in the exhaust cylinder 13, and a second exhaust hole 25 and a first exhaust hole 24 are respectively provided on both sides and the top of the inner wall of the exhaust cylinder 13.
[0023] An air cylinder 12 is fixedly installed on the top of the placement plate 1, and a drive shaft 11 is slidably installed in the air cylinder 12. One end of the drive shaft 11 extends to the outside of the air cylinder 12. A first motor 8 is fixedly installed on the top of the placement plate 1, and a rotating disc 9 is fixedly sleeved on the output shaft of the first motor 8. A connecting rod 10 is rotatably installed on one side of the rotating disc 9. The end of the connecting rod 10 away from the rotating disc 9 is rotatably connected to the drive shaft 11. A first pipe 15 is fixedly installed on one side of the air cylinder 12, and the other end of the first pipe 15 is fixedly connected to the air storage chamber 2. Through the above components, the required pressure value can be achieved in a shorter time, reducing labor intensity, and using the first motor 8 to drive the air cylinder 12 to pressurize the drainage pump can make the staff much more relaxed.
[0024] A mounting hole is provided at the top of the gas storage chamber 2, in which a sealing ring 19 is fixedly installed. The sealing ring 19 can prevent gas from leaking and entering the gas storage chamber 2. The bottom end of the second pipe 18 passes through the sealing ring 19 and extends into the gas storage chamber 2.
[0025] A second spring 27 is fixedly mounted on the top inner wall of the isolation plate 26 , and the other end of the second spring 27 is fixedly connected to the isolation plate 26 .
[0026] A second flow hole 23 is provided in the isolation seat 21 , and a first flow hole 22 is further provided on the isolation seat 21 . The first flow hole 22 is communicated with the second flow hole 23 .
[0027] An air delivery pipe 4 is sealedly mounted on one end of the connecting pipe 3 away from the air storage chamber 2 , and a pressure gauge 5 is also fixedly mounted on the connecting pipe 3 .
[0028] The working principle of the coal mine drainage pump air tightness test tool provided by the utility model is as follows:
[0029] First, connect the other end of the gas pipe 4 to the pressure test hole of the drainage pump to ensure that it is tightly connected, then start the first motor 8. The output shaft of the first motor 8 drives the rotating disc 9 to rotate. When the rotating disc 9 rotates, it continuously pulls and presses the drive shaft 11 through the connecting rod 10, so that the inflation cylinder 12 starts to inflate the gas storage chamber 2 through the first pipe 15. When the air pressure in the gas storage chamber 2 is stable, the isolation seat 21 rises, and the second conductive piece 20 contacts the first first conductive piece 17 from the top to the bottom. The first flashing light 6 is on. When the gas in the gas storage chamber 2 enters the drainage pump through the gas pipe 4, pay attention to the reading of the pressure gauge 5. After pressurizing for 2 hours, check which of the three flashing lights 6 lights up. If the drainage pump leaks, the isolation seat 21 drops, and the second conductive sheet 20 contacts the second or third first conductive sheet 17 from the top, and the second or third flashing light 6 lights up. When the pressure in the gas storage chamber 2 is too high, when the isolation seat 21 rises, the excess gas enters the exhaust pipe 13 through the second flow hole 23 and the first flow hole 22, and lifts the isolation plate 26. The isolation plate 26 rises to a certain height and is discharged from the exhaust pipe 14 through the second exhaust hole 25 and the first exhaust hole 24. After the excess gas is discharged, the isolation seat 21 drops to a normal height.
[0030] Compared with related technologies, the air tightness test tool for coal mine drainage pumps provided by the utility model has the following beneficial effects:
[0031] The utility model provides an air tightness test tool for a drainage pump for a coal mine. By cooperating with an isolation seat 21, a first flow hole 22, a second flow hole 23, a first spring 16, a second conductive sheet 20, a first conductive sheet 17, a flashing light 6 and a second pipe 18, the pressure value can be monitored in real time and accurately, helping the staff to better control the pressure and avoid damage to the drainage pump or tool due to excessive pressure. Secondly, in the case of dim light or the staff's sight cannot always pay attention to the detection tool, when the second conductive sheet 20 contacts the first conductive sheet 17 and makes the flashing light 6 flash, the staff can be informed of the detection status in time. For example, when the pressure is abnormal, the flashing light 6 can quickly remind the staff, thereby improving the safety and convenience of the detection process; through the exhaust pipe 13, the isolation plate 26, the second exhaust hole 25, the first exhaust hole 24, the first spring 16, the second conductive sheet 20, the first conductive sheet 17, the flashing light 6 and the second pipe 18, the pressure value can be monitored in real time and accurately, helping the staff to better control the pressure and avoid damage to the drainage pump or tool due to excessive pressure. Secondly, in the case of dim light or the staff's sight cannot always pay attention to the detection tool, when the second conductive sheet 20 contacts the first conductive sheet 17 and makes the flashing light 6 flash, the staff can be informed of the detection status in time. For example, when the pressure is abnormal, the flashing light 6 can quickly remind the staff, thereby improving the safety and convenience of the detection process; The second spring 27 cooperates with the exhaust pipe 14. During the inspection process, when the pressure accidentally rises and exceeds the limit that the tool can withstand, the exhaust pipe 14 can automatically release the pressure to avoid the tool from breaking due to excessive pressure, and prevent excessive pressure from causing damage to the inspection tool itself; through the cooperation of the inflation cylinder 12, the connecting rod 10, the rotating disc 9, the first motor 8, the drive shaft 11 and the first pipeline 15, the first motor 8 drives the inflation cylinder 12 through the connecting rod 10 to pressurize the drainage pump, which can quickly increase the pressure. Compared with manual inflation, the required pressure value can be reached in a shorter time, thereby saving inspection time and reducing labor intensity. Secondly, in the coal mine working environment, manual operation of the inflation cylinder 12 is relatively laborious. Using the first motor 8 to drive the inflation cylinder 12 to pressurize the drainage pump can make the staff much more relaxed.
[0032] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A coal mine drainage pump air tightness test tool, characterized in that: include: A placement plate, an air storage chamber is fixedly installed on the top of the placement plate, a connecting pipe is fixedly installed on one side of the air storage chamber, a pressure measuring cylinder is fixedly installed on the top of the air storage chamber, an isolation seat is provided in the pressure measuring cylinder, a first spring is fixedly installed on the top of the isolation seat, the other end of the first spring is fixedly connected to the pressure measuring cylinder, a plurality of first conductive sheets and a flashing light are fixedly installed on one side of the pressure measuring cylinder, a second conductive sheet is fixedly installed on the side of the isolation seat close to the first conductive sheet, the second conductive sheet is adapted to the first conductive sheet, a second pipe is fixedly installed on the bottom of the pressure measuring cylinder, an exhaust cylinder is rotatably sealed on the top of the pressure measuring cylinder, an exhaust pipe is fixedly installed on the top of the exhaust cylinder, an isolation plate is provided in the exhaust cylinder, and a second exhaust hole and a first exhaust hole are respectively provided on both sides and the top of the inner wall of the exhaust cylinder.
2. The coal mine drainage pump air tightness test tool according to claim 1, characterized in that: An air cylinder is fixedly installed on the top of the placement plate, and a drive shaft is slidably installed in the air cylinder. One end of the drive shaft extends to the outside of the air cylinder. A first motor is fixedly installed on the top of the placement plate, and a rotating disk is fixedly sleeved on the output shaft of the first motor. A connecting rod is rotatably installed on one side of the rotating disk, and the end of the connecting rod away from the rotating disk is rotatably connected to the drive shaft. A first pipe is fixedly installed on one side of the air cylinder, and the other end of the first pipe is fixedly connected to the air storage chamber.
3. The coal mine drainage pump air tightness test tool according to claim 1, characterized in that: A mounting hole is provided on the top of the gas storage chamber, a sealing ring is fixedly installed in the mounting hole, and the bottom end of the second pipe passes through the sealing ring and extends into the gas storage chamber.
4. The coal mine drainage pump air tightness test tool according to claim 1, characterized in that: A second spring is fixedly mounted on the top inner wall of the isolation plate, and the other end of the second spring is fixedly connected to the isolation plate.
5. The coal mine drainage pump air tightness test tool according to claim 1, characterized in that: A second flow hole is provided in the isolation seat, and a first flow hole is further provided on the isolation seat. The first flow hole is communicated with the second flow hole.
6. The coal mine drainage pump air tightness test tool according to claim 1, characterized in that: An air delivery pipe is sealedly installed on one end of the connecting pipe away from the air storage chamber, and a pressure gauge is also fixedly installed on the connecting pipe.