Valve leakage detection device and use method thereof

Abstract

The invention relates to the technical field of valve detection, and discloses a valve leakage detection device and a use method thereof.The valve leakage detection device comprises a bottom plate, an inflation mechanism is arranged at the top of the bottom plate, an air pressure displayer is fixedly connected to one side of the top of the bottom plate, and one side of the air pressure displayer is fixedly connected to one side of the inflation mechanism; a connecting air pipe is fixedly connected to the other side of the air pressure displayer, a detection mechanism is fixedly connected to the side, away from the inflation mechanism, of the connecting air pipe, a pressure relief mechanism is arranged outside the detection mechanism, and a portable moving mechanism is fixedly connected to the bottom of the bottom plate. The inflation mechanism is used for inflating the detection mechanism, so that the detection mechanism can be clamped on the valve. Through the cooperation of the inflation mechanism and the detection mechanism, the valve detection device can adapt to more valves with different sizes, so that the time for replacing joints can be saved, time and labor are saved, the detection efficiency is improved, the structure is simple, the device cost is low, and the valve detection cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of valve detection, and in particular to a valve leakage detection device and a use method thereof. Background Art

[0002] Valves are widely used in industrial production. Once a leak occurs, it may cause serious safety accidents, such as explosion, fire, poisoning, etc. By regularly conducting valve leakage detection, potential safety hazards can be discovered early, and appropriate measures can be taken to repair or replace them, thereby ensuring the safety of industrial production. Valve leakage will lead to fluid waste, affecting the continuity and efficiency of the production process. By detecting and repairing leaking valves, it is possible to reduce resource waste, improve production efficiency, and reduce production costs.

[0003] The valve leakage detection device in the prior art needs to replace different detection heads and install them on one side of the valve when testing valves of different sizes. The replacement takes time and different detection heads need to be installed, which is time-consuming and labor-intensive. In addition, some instruments are expensive, which increases the cost of valve leakage detection. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a valve leakage detection device and a method of using the same, which solves the problem in the prior art that replacing different detection heads requires time, is labor-intensive, and increases detection costs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a valve leakage detection device and a method of using the same, comprising a base plate, an inflation mechanism is provided on the top of the base plate, an air pressure display is fixedly connected to one side of the top of the base plate, one side of the air pressure display is fixedly connected to one side of the inflation mechanism, a connecting air pipe is fixedly connected to the other side of the air pressure display, a detection mechanism is fixedly connected to the side of the connecting air pipe away from the inflation mechanism, a pressure relief mechanism is provided on the outside of the detection mechanism, a portable mobile mechanism is fixedly connected to the bottom of the base plate, during detection, the inflation mechanism is used to inflate the detection mechanism so that the detection mechanism can be engaged on the valve, and air can be inflated into the valve to detect valve leakage, and when the detection is completed, the pressure relief mechanism can be used to relieve pressure so that the detection mechanism can be removed from the valve.

[0006] Preferably, the inflation mechanism includes an inflatable airbag, the bottom of the inflatable airbag is fixedly connected to the top of the base plate, the top of the inflatable airbag is fixedly connected to a mounting top plate, both ends of the mounting top plate are internally slidably connected to limiting columns, the outer sleeve of the limiting columns is provided with an auxiliary reset spring, the top of the mounting top plate is fixedly connected to a sliding head, one side of the top of the base plate is rotatably connected to a pressing plate, a sliding groove is provided inside the pressing plate, the top of the sliding head is slidably connected to the inside of the sliding groove, one side of the bottom of the inflatable airbag is fixedly connected to a one-way valve 1, the side of the bottom of the inflatable airbag away from the one-way valve 1 is fixedly connected to a one-way valve 2, and the side of the one-way valve 2 away from the inflatable airbag is fixedly connected to the side of the air pressure display close to the inflatable airbag.

[0007] Preferably, the detection mechanism includes a connecting head, wherein the connecting head is fixedly connected to a ventilation ring on a side away from the connecting air pipe, the outside of the ventilation ring is fixedly connected to an extrusion mounting airbag, the connecting head is provided with a ventilation groove inside, the ventilation groove is connected to the inside of the ventilation ring, the outside of the connecting head is fixedly connected to the ventilation pipe at the position of the ventilation groove, the connecting head is threadedly connected to a mounting tube on a side close to the connecting air pipe, the mounting tube is fixedly connected to a fixing frame at one end away from the connecting head, the fixing frame is fixedly connected to a limited square column at one end close to the connecting head, the mounting tube is slidably connected to a sliding movable plate inside, a plurality of ventilation holes are provided inside the outer periphery of the sliding movable plate, the mounting tube is fixedly connected to a plurality of blocking columns on the inner side away from the connecting head, the blocking columns are slidably connected to the inside of the ventilation holes, the middle part of the sliding movable plate is slidably connected to the outside of the limiting square column, a pressure spring is arranged inside the mounting tube, and the side of the mounting tube away from the connecting head is threadedly connected to an end of the connecting air pipe away from the inflation mechanism.

[0008] Preferably, the pressure relief mechanism includes a fixed cylinder, the bottom of which is fixedly connected to the outside of the mounting tube, the inner bottom end of the fixed cylinder is fixedly connected with a clamping spring, the top of the clamping spring is fixedly connected with a movable ventilation plate, the top of the movable ventilation plate is fixedly connected with a hollow air column, a plurality of exhaust holes are provided on the upper and lower sides of the hollow air column, a pressing round handle is fixedly connected to the top of the hollow air column, the outer bottom end of the fixed cylinder is fixedly connected with a connecting elbow, the bottom of the connecting elbow is fixedly connected to the outside of the ventilation pipe, the movable ventilation plate is slidably connected to the inside of the fixed cylinder, and the hollow air column passes through the top of the fixed cylinder.

[0009] Preferably, the portable mobile mechanism includes a bottom fixing plate, the top of the bottom fixing plate is fixedly connected to the bottom of the bottom plate, sliding grooves are opened inside both sides of the bottom fixing plate, the bottom fixing plate is slidably connected to a sliding inner plate, both sides of the sliding inner plate are fixedly connected to limited sliding blocks, the limited sliding blocks are slidably connected to the inside of the sliding grooves, one end of the bottom fixing plate is fixedly connected to a moving wheel, and the end of the sliding inner plate away from the limited sliding block is fixedly connected to a support handle.

[0010] Preferably, one end of the pressure spring is fixedly connected to the inside of the mounting tube, and the other end of the pressure spring is fixedly connected to one end of the sliding movable plate close to the connecting head.

[0011] Preferably, one end of the auxiliary return spring is fixedly connected to the bottom of the mounting top plate, and the other end of the auxiliary return spring is fixedly connected to the top of the bottom plate.

[0012] Preferably, the top of the limiting column is fixedly connected to a limiting plate, and the bottom of the pressing plate is fixedly connected to a caliper.

[0013] Preferably, one end of the ventilation pipe away from the connector is fixedly connected to the outside of the mounting pipe, and the limiting square column is arranged inside the mounting pipe.

[0014] A method for using a valve leakage detection device comprises the following steps:

[0015] Step 1: Insert the connector into the valve, then step on the pressing plate, and then use the inflation mechanism to fill the connector with gas, and then use the air pressure display to observe the air pressure change, so that the detection mechanism can be used to detect whether the valve is leaking;

[0016] Step 2: After the valve test is completed, press the round handle downward to discharge the gas in the extruded airbag, making it easier to remove the test mechanism from the valve;

[0017] Step 3: When conducting the test, the supporting handle can be used to pull out the sliding inner plate, so as to maintain the stability of the pressing plate when it is pressed. At the same time, the sliding inner plate can be pulled out from the bottom fixed plate, making it easier to move and carry the device.

[0018] The present invention provides a valve leakage detection device and a method for using the same. The device has the following beneficial effects:

[0019] 1. The present invention can utilize the extrusion installation airbag to expand and squeeze inside the valve through the cooperation of the inflation mechanism and the detection mechanism, so it can adapt to more valves of different sizes, thereby saving time for replacing joints, saving time and effort, improving detection efficiency, and having a simple structure, thereby reducing the cost of the device, thereby reducing the cost of valve detection.

[0020] 2. The present invention can facilitate the carrying and movement of the detection device by setting up a carrying and moving mechanism, and there is no need for the user to carry it by hand. The sliding inner plate can be moved out of the bottom fixed plate and then pulled away by the user, thereby making it convenient for the staff to use and reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the inflatable airbag in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the connector in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the ventilation groove in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the fixing frame in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the installation pipe in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the bottom fixing plate in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the sliding groove in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the position-limiting sliding block in the present invention.

[0030] Among them, 1. bottom plate; 2. inflation mechanism; 201. inflatable airbag; 202. top plate installation; 203. limit column; 204. auxiliary reset spring; 205. sliding head; 206. pressing plate; 207. sliding groove; 208. one-way valve 1; 209. one-way valve 2; 210. limit plate; 3. connecting air pipe; 4. detection mechanism; 401. connecting head; 402. ventilation ring; 403. extrusion installation airbag; 404. ventilation groove; 405. ventilation pipe; 406. installation pipe; 407. fixing frame; 408. limit square column ; 409, sliding movable plate; 410, vent hole; 411, blocking column; 412, pressure spring; 5, pressure relief mechanism; 501, fixing cylinder; 502, pressing spring; 503, movable vent plate; 504, hollow air column; 505, exhaust hole; 506, pressing round handle; 507, connecting elbow; 6, portable mobile mechanism; 601, bottom fixed plate; 602, sliding groove; 603, sliding inner plate; 604, limiting sliding block; 605, moving wheel; 606, supporting handle; 607, caliper; 7, air pressure display. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to the attached Figure 1 -Attached Fig. 9 The embodiment of the present invention provides a valve leakage detection device and a method of using the same, including a base plate 1, which can provide an installation position. An inflation mechanism 2 is arranged on the top of the base plate 1, and the inflation mechanism 2 can be pressurized by stepping on it. A pressure display 7 is fixedly connected to one side of the top of the base plate 1, and the pressure display 7 can display the air pressure. One side of the pressure display 7 is fixedly connected to one side of the inflation mechanism 2, and the other side of the pressure display 7 is fixedly connected to a connecting air pipe 3, and the connecting air pipe 3 can play a ventilation role. A detection mechanism 4 is fixedly connected to the side of the connecting air pipe 3 away from the inflation mechanism 2, and a pressure relief mechanism 5 is arranged on the outside of the detection mechanism 4. A portable mobile mechanism 6 is fixedly connected to the bottom of the base plate 1. During detection, the inflation mechanism 2 is used to inflate the detection mechanism 4 so that the detection mechanism 4 can be clamped on the valve, and the valve can be inflated to detect valve leakage. When the detection is completed, the pressure relief mechanism 5 can be used to relieve pressure, so that the detection mechanism 4 can be removed from the valve.

[0033] The inflatable mechanism 2 includes an inflatable airbag 201, the contraction and expansion of the inflatable airbag 201 can be used to inflate the detection mechanism 4, the bottom of the inflatable airbag 201 is fixedly connected to the top of the bottom plate 1, the top of the inflatable airbag 201 is fixedly connected to a mounting top plate 202, the mounting top plate 202 can compress the inflatable airbag 201, the two ends of the mounting top plate 202 are internally slidably connected to limit posts 203, the limit posts 203 play a role of limiting, and then the mounting top plate 202 can be stably moved up and down, the outer sleeve of the limit post 203 is provided with an auxiliary reset spring 204, the auxiliary reset spring 204 can utilize its own reaction force The top plate 202 is pushed upward, and a sliding head 205 is fixedly connected to the top of the top plate 202. A pressing plate 206 is rotatably connected to one side of the top of the bottom plate 1. The pressing plate 206 is convenient for the user to step on. A sliding groove 207 is provided inside the pressing plate 206. The sliding groove 207 can provide a sliding space for the sliding head 205, and can prevent movement interference when the pressing plate 206 squeezes the sliding head 205. The top of the sliding head 205 is slidably connected to the inside of the sliding groove 207. A one-way valve 208 is fixedly connected to one side of the bottom of the inflatable airbag 201. The bottom of the inflatable airbag 201 is away from the one-way valve 208. The one-way valve 209 is fixedly connected to the side, and the one-way valve 208 and the one-way valve 209 can play the role of one-way ventilation. The side of the one-way valve 209 away from the inflatable airbag 201 is fixedly connected to the side of the air pressure display 7 close to the inflatable airbag 201. One end of the auxiliary reset spring 204 is fixedly connected to the bottom of the mounting top plate 202, and the other end of the auxiliary reset spring 204 is fixedly connected to the top of the bottom plate 1. When the valve is tested, the detection mechanism 4 is placed inside the valve, and the pressing plate 206 is stepped on. The pressing plate 206 rotates downward to drive the sliding head 205 to move downward, thereby driving the mounting top plate 202 to move downward. The mounting top plate 202 moves downward to compress the inflatable airbag 201 and the auxiliary reset spring 204 at the same time. When the inflatable airbag 201 is compressed, the one-way valve 1 208 is closed and the one-way valve 209 is opened. The air is exhausted to the air pressure display 7 through the one-way valve 209. When the pressing plate 206 is released, the reaction force of the auxiliary reset spring 204 drives the mounting top plate 202 to move upward, and then the inflatable airbag 201 can be driven to restore. At this time, the one-way valve 209 is closed and the one-way valve 1 208 is opened, so that the one-way valve 1 208 can be used to inhale air from the outside to achieve gas extraction and discharge.

[0034] The detection mechanism 4 includes a connector 401, which can provide an installation position. A ventilation ring 402 is fixedly connected to the side of the connector 401 away from the connecting air pipe 3. The ventilation ring 402 can provide an installation position. The outside of the ventilation ring 402 is fixedly connected with an extrusion installation airbag 403. The extrusion installation airbag 403 can be against the inside of the valve after the gas is filled. A ventilation groove 404 is opened inside the connector 401, and the ventilation groove 404 is connected to the inside of the ventilation ring 402. A ventilation pipe 405 is fixedly connected to the outside of the connector 401 at the position of the ventilation groove 404. The ventilation pipe 405 plays a role of communication. A mounting pipe 406 is threadedly connected to the side of the connector 401 close to the connecting air pipe 3. The mounting pipe 406 provides The mounting tube 406 is provided with a mounting bracket 407 at one end away from the connector 401, and the mounting bracket 407 provides the mounting position. The mounting bracket 407 is fixedly connected to a limiting square column 408 at one end close to the connector 401. The interior of the mounting tube 406 is slidably connected to a sliding movable plate 409. The limiting square column 408 is square and can limit the movement trajectory of the sliding movable plate 409. A plurality of vent holes 410 are provided inside the outer periphery of the sliding movable plate 409. The vent holes 410 can play a role in exhausting gas. A plurality of blocking columns 411 are fixedly connected to the inner side of the mounting tube 406 away from the connector 401. The blocking columns 411 can block the vent holes 410 when ventilating the extruded mounting airbag 403. The blocking columns 41 1 is slidably connected to the inside of the vent hole 410, the middle part of the sliding movable plate 409 is slidably connected to the outside of the limiting square column 408, a pressure spring 412 is arranged inside the mounting tube 406, and the pressure spring 412 can push the sliding movable plate 409 to reset, the side of the mounting tube 406 away from the connector 401 is threadedly connected to the end of the connecting air pipe 3 away from the inflation mechanism 2, one end of the pressure spring 412 is fixedly connected to the inside of the mounting tube 406, and the other end of the pressure spring 412 is fixedly connected to the end of the sliding movable plate 409 close to the connector 401, the end of the vent pipe 405 away from the connector 401 is fixedly connected to the outside of the mounting tube 406, and the limiting square column 408 is arranged inside the mounting tube 406. When passing through the one-way valve 209 The exhausted gas passes through the interior of the air pressure display 7 and enters the interior of the connecting air pipe 3, and then enters the interior of the mounting tube 406 through the connecting air pipe 3. Under the action of the air pressure, the sliding movable plate 409 is pushed to move in the direction of the connecting head 401. When the sliding movable plate 409 moves to one end of the ventilation tube 405, the gas enters the ventilation groove 404 through the ventilation tube 405, and then enters the interior of the ventilation ring 402 through the ventilation groove 404, so that the extrusion installation airbag 403 can be blown up by the gas, so that the inflated extrusion installation airbag 403 can be tightly pressed against the interior of the valve, so that the connecting head 401 can be installed inside the valve. Since the gas inside the mounting tube 406 is constantly discharged through the ventilation tube 405,As a result, the sliding movable plate 409 can no longer move toward the connecting head 401, so the blocking column 411 is always blocked inside the vent hole 410. When the installation airbag 403 is squeezed and pressed against the inside of the valve, the gas inside the installation tube 406 will no longer be discharged through the vent tube 405, so it will continue to push the sliding movable plate 409 to move inside the installation tube 406 toward the side of the connecting head 401. When the vent hole 410 moves out of the range of the blocking column 411, the gas entering the installation tube 406 will be discharged through the vent hole 410 and enter the inside of the connecting head 401. At this time, the gas is between the valve and the connecting head 401. When the air pressure of the air pressure display 7 does not change, it means that the valve is not leaking. After the air is continuously filled into the connecting head 401, the air pressure displayed by the air pressure display 7 is still changing, so it can be judged that the valve is leaking.

[0035] The pressure relief mechanism 5 includes a fixed cylinder 501, which can provide an installation position. The bottom of the fixed cylinder 501 is fixedly connected to the outside of the installation tube 406. The bottom end of the interior of the fixed cylinder 501 is fixedly connected to a tightening spring 502. The top of the tightening spring 502 is fixedly connected to a movable vent plate 503. The movable vent plate 503 can be pressed against the top of the interior of the fixed cylinder 501 under the action of the tightening spring 502. If the interior of the fixed cylinder 501 is filled with gas, an upward force will be applied to the movable vent plate 503. The top of the air plate 503 is fixedly connected with a hollow air column 504, which can play a connecting role. The upper and lower sides of the hollow air column 504 are provided with multiple exhaust holes 505, which can play a role in exhausting. The top of the hollow air column 504 is fixedly connected with a pressing round handle 506, which is convenient for users to press. The outer bottom end of the fixed cylinder 501 is fixedly connected with a connecting elbow 507, which plays a connecting role. The bottom of the connecting elbow 507 is fixedly connected to the vent The outer part of the tube 405, the movable vent plate 503 is slidably connected to the inner part of the fixed cylinder 501, and the hollow air column 504 passes through the top of the fixed cylinder 501. When the test is finished, the pressing handle 506 is pressed downward, and the gas in the squeezed airbag 403 passes through the inside of the vent ring 402 and the inside of the vent groove 404, enters the vent pipe 405, and enters the inside of the connecting elbow 507 through the vent pipe 405, thereby entering the inside of the fixed cylinder 501, and at this time, the holes on the movable vent plate 503 are not The top of the fixed tube 501 is then sealed, so the gas inside the fixed tube 501 will enter the space above the movable ventilation plate 503 in the fixed tube 501 through the holes on the movable ventilation plate 503, and enter the exhaust holes 505 on the upper and lower sides of the hollow air column 504 to be discharged. Therefore, there is no gas inside the extrusion-mounted airbag 403, and it will shrink. At this time, the extrusion-mounted airbag 403 will not press against the inside of the valve, so that the connector 401 can be removed from the valve.

[0036] The portable mobile mechanism 6 includes a bottom fixing plate 601, which can provide an installation position. The top of the bottom fixing plate 601 is fixedly connected to the bottom of the bottom plate 1. Sliding grooves 602 are provided inside the two sides of the bottom fixing plate 601. The bottom fixing plate 601 is slidably connected to a sliding inner plate 603. The sliding inner plate 603 can slide inside the bottom fixing plate 601. When the sliding inner plate 603 slides out of the bottom fixing plate 601, it is convenient for the staff to pull the device to move. At the same time, it can also increase the support area and increase the stability of the device when stepping on the pressing plate 206. Both sides of the sliding inner plate 603 are fixedly connected to limited sliding blocks 604. The limited sliding block 604 can be slidably connected to the inside of the sliding groove 602 to play a limiting role and improve the stability of the bottom fixing plate 601 when sliding. The limited sliding block 604 is slidably connected to the inside of the sliding groove 602. One end of the bottom fixing plate 601 is fixedly connected to a moving wheel 605. The moving wheel 605 can be conveniently When the device is pulled, the end of the sliding inner plate 603 away from the limiting sliding block 604 is fixedly connected to the support handle 606, the top of the limiting column 203 is fixedly connected to the limiting plate 210, and the bottom of the pressing plate 206 is fixedly connected to the caliper 607, which is convenient for clamping on the outside of the mounting tube 406, so as to facilitate the storage of the detection mechanism 4. When the pressing plate 206 is stepped on, if the bottom plate 1 is tilted in the direction of stepping, the support handle 606 can be pulled, and the support handle 606 drives the sliding inner plate 603 to move The bottom fixing plate 601 can be pulled out of the bottom fixing plate 601, and the supporting area of ​​the bottom plate 1 can be increased. The supporting handle 606 can be used to maintain the same height as the moving wheel 605, so that there will be no unevenness when stepped on. If the device needs to be carried away, the mounting tube 406 is clamped in the caliper 607, and the supporting handle 606 is pulled out of the bottom fixing plate 601. At this time, the bottom fixing plate 601 rotates upward with the moving wheel 605 as the center, so that the device can be pulled away, which is convenient for carrying and moving.

[0037] A method for using a valve leakage detection device comprises the following steps:

[0038] Step 1: Insert the connector 401 into the interior of the valve, then step on the pressing plate 206, and then use the inflation mechanism 2 to fill the interior of the connector 401 with gas, and then use the air pressure display 7 to observe the air pressure change, so that the detection mechanism 4 can be used to detect whether the valve is leaking;

[0039] Step 2: After the valve detection is completed, the pressing handle 506 is pressed downward to discharge the gas in the extrusion installation airbag 403, so as to facilitate the removal of the detection mechanism 4 from the valve;

[0040] Step 3: When testing, the supporting handle 606 can be used to pull out the sliding inner plate 603, so as to maintain the stability of the pressing plate 206 when it is pressed. At the same time, the sliding inner plate 603 can be pulled out of the bottom fixed plate 601, making it easier to move and carry the device.

[0041] Working principle: when testing the valve, put the testing mechanism 4 into the interior of the valve, step on the pressing plate 206, and the pressing plate 206 rotates downward to drive the sliding head 205 to move downward, thereby driving the installation top plate 202 to move downward. After the installation top plate 202 moves downward, it compresses the inflatable airbag 201 and the auxiliary return spring 204 at the same time. When the inflatable airbag 201 is compressed, the one-way valve 1 208 is closed, and the one-way valve 209 is opened. The air is exhausted to the air pressure display 7 through the one-way valve 209. When the pressing plate 206 is released, the reaction force of the auxiliary return spring 204 drives the installation top plate 202 to move upward, and then the inflatable airbag 201 can be driven to restore. At this time, the one-way valve 209 is closed, and the one-way valve 1 208 is opened, so that the one-way valve 1 208 can be used to inhale air from the outside to achieve gas extraction and discharge.

[0042] When the gas discharged through the one-way valve 209 passes through the interior of the air pressure display 7 and enters the interior of the connecting air pipe 3, and enters the interior of the installation pipe 406 through the connecting air pipe 3, the sliding movable plate 409 will be pushed to move in the direction of the connecting head 401 under the action of the air pressure. When the sliding movable plate 409 moves to one end of the ventilation pipe 405, the gas will enter the ventilation groove 404 through the ventilation pipe 405, and enter the interior of the ventilation ring 402 through the ventilation groove 404, so that the extrusion installation airbag 403 can be blown up by the gas, so that the inflated extrusion installation airbag 403 can be tightly pressed against the interior of the valve, so that the connecting head 401 can be installed in the interior of the valve. Since the gas inside the installation pipe 406 is constantly discharged through the ventilation pipe 405, the sliding movable plate 409 can no longer move toward the connecting head 401, so the blocking column 411 is always blocked inside the vent hole 410, and when the installation airbag 403 is squeezed and pressed against the inside of the valve, the gas inside the installation tube 406 will no longer be discharged through the vent tube 405, so it will continue to push the sliding movable plate 409 to move inside the installation tube 406 toward the side of the connector 401, and when the vent hole 410 moves out of the range of the blocking column 411, the gas entering the installation tube 406 will be discharged through the vent hole 410 and enter the inside of the connector 401. At this time, the gas is between the valve and the connector 401. When the air pressure of the air pressure display 7 does not change anymore, it means that the valve is not leaking. After the connector 401 is continuously filled with gas, the air pressure displayed by the air pressure display 7 is still changing, so it can be judged that the valve is leaking.

[0043] After the test is finished, the pressing handle 506 is pressed downwards, and the gas in the squeezed installation airbag 403 will pass through the inside of the vent ring 402 and the inside of the vent groove 404, enter the vent pipe 405, and enter the inside of the connecting elbow 507 through the vent pipe 405, and then enter the inside of the fixed cylinder 501. At this time, the holes on the movable vent plate 503 are no longer blocked by the top of the fixed cylinder 501, so the gas inside the fixed cylinder 501 will pass through the holes on the movable vent plate 503 into the space above the movable vent plate 503 in the fixed cylinder 501, and enter the exhaust hole 505 on the upper and lower sides of the hollow air column 504 to be discharged. Therefore, there is no gas in the squeezed installation airbag 403, and it will shrink. At this time, the squeezed installation airbag 403 will not press against the inside of the valve, so that the connector 401 can be removed from the valve.

[0044] When the pressing plate 206 is pressed, if the bottom plate 1 is tilted in the pressing direction, the support handle 606 can be pulled, and the support handle 606 drives the sliding inner plate 603 to move out of the bottom fixed plate 601. At this time, the support area of ​​the bottom plate 1 can be increased, and the support handle 606 can be used to maintain the same height as the moving wheel 605, so that there will be no unevenness when pressed. If the device needs to be carried away, the mounting tube 406 is clamped inside the caliper 607, and the support handle 606 is pulled out of the bottom fixed plate 601. At this time, the bottom fixed plate 601 rotates upward with the moving wheel 605 as the center, so that the device can be pulled away, which is convenient for carrying and moving.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve leakage detection device, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with an inflation mechanism (2), one side of the top of the base plate (1) is fixedly connected to an air pressure display (7), one side of the air pressure display (7) is fixedly connected to one side of the inflation mechanism (2), the other side of the air pressure display (7) is fixedly connected to a connecting air pipe (3), the side of the connecting air pipe (3) away from the inflation mechanism (2) is fixedly connected to a detection mechanism (4), the outside of the detection mechanism (4) is provided with a pressure relief mechanism (5), and the bottom of the base plate (1) is fixedly connected to a portable mobile mechanism (6). During detection, the inflation mechanism (2) is used to inflate the detection mechanism (4) so ​​that the detection mechanism (4) can be engaged on the valve, and the valve can be inflated to detect valve leakage. After the detection is completed, the pressure relief mechanism (5) can be used to relieve pressure, so that the detection mechanism (4) can be removed from the valve.

2. A valve leakage detection device according to claim 1, characterized in that: The inflation mechanism (2) comprises an inflatable airbag (201), the bottom of the inflatable airbag (201) is fixedly connected to the top of the bottom plate (1), the top of the inflatable airbag (201) is fixedly connected to a mounting top plate (202), both ends of the mounting top plate (202) are internally slidably connected to limit posts (203), the outer portion of the limit posts (203) is sleeved with an auxiliary return spring (204), the top of the mounting top plate (202) is fixedly connected to a sliding head (205), and one side of the top of the bottom plate (1) is rotatably connected to a pressing plate (20 6), a sliding groove (207) is provided inside the pressing plate (206), the top of the sliding head (205) is slidably connected to the inside of the sliding groove (207), a one-way valve 1 (208) is fixedly connected to one side of the bottom of the inflatable airbag (201), a one-way valve 2 (209) is fixedly connected to the side of the bottom of the inflatable airbag (201) away from the one-way valve 1 (208), and the one-way valve 2 (209) is fixedly connected to the side of the air pressure display (7) close to the inflatable airbag (201) on the side away from the inflatable airbag (201).

3. A valve leakage detection device according to claim 1, characterized in that: The detection mechanism (4) comprises a connector (401), a side of the connector (401) away from the connecting air pipe (3) is fixedly connected to a ventilation ring (402), the outside of the ventilation ring (402) is fixedly connected to an extrusion installation air bag (403), a ventilation groove (404) is provided inside the connector (401), the ventilation groove (404) is connected to the inside of the ventilation ring (402), the outside of the connector (401) is fixedly connected to a ventilation pipe (405) at the position of the ventilation groove (404), a side of the connector (401) close to the connecting air pipe (3) is threadedly connected to a mounting pipe (406), an end of the mounting pipe (406) away from the connector (401) is fixedly connected to a fixing frame (407), and the fixing frame (407) One end close to the connecting head (401) is fixedly connected to a limiting square column (408), the interior of the mounting tube (406) is slidably connected to a sliding movable plate (409), a plurality of ventilation holes (410) are provided inside the outer periphery of the sliding movable plate (409), a plurality of blocking columns (411) are fixedly connected to the inner side of the mounting tube (406) away from the connecting head (401), the blocking columns (411) are slidably connected to the inside of the ventilation holes (410), the middle part of the sliding movable plate (409) is slidably connected to the outside of the limiting square column (408), a pressure spring (412) is provided inside the mounting tube (406), and the side of the mounting tube (406) away from the connecting head (401) is threadedly connected to an end of the connecting air pipe (3) away from the inflation mechanism (2).

4. A valve leakage detection device according to claim 1, characterized in that: The pressure relief mechanism (5) comprises a fixed cylinder (501), the bottom of the fixed cylinder (501) is fixedly connected to the outside of the mounting tube (406), the inner bottom end of the fixed cylinder (501) is fixedly connected to a holding spring (502), the top of the holding spring (502) is fixedly connected to a movable ventilation plate (503), the top of the movable ventilation plate (503) is fixedly connected to a hollow air column (504), and the upper and lower sides of the hollow air column (504) are both provided with There are a plurality of exhaust holes (505), the top of the hollow air column (504) is fixedly connected with a pressing round handle (506), the outer bottom end of the fixed cylinder (501) is fixedly connected with a connecting elbow (507), the bottom of the connecting elbow (507) is fixedly connected to the outside of the ventilation pipe (405), the movable ventilation plate (503) is slidably connected to the inside of the fixed cylinder (501), and the hollow air column (504) passes through the top of the fixed cylinder (501).

5. A valve leakage detection device according to claim 1, characterized in that: The portable mobile mechanism (6) comprises a bottom fixing plate (601), the top of the bottom fixing plate (601) is fixedly connected to the bottom of the bottom plate (1), sliding grooves (602) are provided inside both sides of the bottom fixing plate (601), the inside of the bottom fixing plate (601) is slidably connected to a sliding inner plate (603), both sides of the sliding inner plate (603) are fixedly connected to a limiting sliding block (604), the limiting sliding block (604) is slidably connected to the inside of the sliding groove (602), one end of the bottom fixing plate (601) is fixedly connected to a moving wheel (605), and the end of the sliding inner plate (603) away from the limiting sliding block (604) is fixedly connected to a support handle (606).

6. A valve leakage detection device according to claim 3, characterized in that: One end of the pressure spring (412) is fixedly connected to the inside of the mounting tube (406), and the other end of the pressure spring (412) is fixedly connected to one end of the sliding movable plate (409) close to the connecting head (401).

7. A valve leakage detection device according to claim 2, characterized in that: One end of the auxiliary return spring (204) is fixedly connected to the bottom of the mounting top plate (202), and the other end of the auxiliary return spring (204) is fixedly connected to the top of the bottom plate (1).

8. A valve leakage detection device according to claim 2, characterized in that: The top of the limiting column (203) is fixedly connected to the limiting plate (210), and the bottom of the pressing plate (206) is fixedly connected to the caliper (607).

9. A valve leakage detection device according to claim 3, characterized in that: One end of the ventilation pipe (405) away from the connector (401) is fixedly connected to the outside of the mounting pipe (406), and the limiting square column (408) is arranged inside the mounting pipe (406).

10. A method for using a valve leakage detection device, according to the valve leakage detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Insert the connector (401) into the interior of the valve, then step on the pressing plate (206), and then use the inflation mechanism (2) to inflate gas into the interior of the connector (401), and then use the air pressure display (7) to observe the change in air pressure, so that the detection mechanism (4) can be used to detect whether the valve is leaking; Step 2: After the valve test is completed, the pressing handle (506) is pressed downward to discharge the gas in the extrusion installation airbag (403), so as to facilitate the removal of the testing mechanism (4) from the valve; Step 3: When performing testing, the supporting handle (606) can be used to pull out the sliding inner plate (603), thereby maintaining the stability of the pressing plate (206) when pressed, and at the same time, the sliding inner plate (603) can be pulled out of the bottom fixed plate (601), making it easier to move and carry the device.

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