WO2022012066A1

WO2022012066A1 - Testing bench for use in machining of check valve, and testing method

Info

Publication number: WO2022012066A1
Application number: PCT/CN2021/080703
Authority: WO
Inventors: 李晓; 孙二南
Original assignee: 南京禹智智能科技有限公司
Priority date: 2020-07-16
Filing date: 2021-03-15
Publication date: 2022-01-20
Also published as: CN112378590A

Abstract

A testing bench for use in the machining of a check valve, and a testing method. The testing bench comprises a testing bench body (1), wherein the testing bench body (1) is provided with a sliding slot (101); an active connector (2) is slidably connected in the sliding slot (101); and the active connector (2) comprises a sliding block (201), the sliding block (201) is arranged in the sliding slot (101), an end of the sliding block (201) that is away from the testing bench body (1) is connected to a first pedestal (202), a first connecting base (203) is connected on the first pedestal (202), a first mounting pipe (204) is mounted on the first connecting base (203), a first connecting flange (205) is provided in the first mounting pipe (204), and a pressing fixing mechanism (3) and an auxiliary limiting mechanism are connected between the first mounting pipe (204) and the first connecting flange (205). In the testing bench, by means of the cooperative arrangement of a strong self-suction clamping mechanism and the auxiliary limiting mechanism, workers can conveniently and rapidly replace a check valve connecting flange so as to facilitate a testing institution in testing different types of check valve and expand the range of application in testing institutions, and workers can perform testing without the need to rely on other tests so as to improve the testing efficiency of the workers and reduce the economic investment of the workers.

Description

A kind of inspection table and inspection method for check valve processing

technical field

The invention belongs to the technical field of check valve detection, and in particular relates to a check valve processing detection table and a detection method.

Background technique

Check valve refers to a valve whose opening and closing part is a circular disc and acts by its own weight and medium pressure to block the backflow of the medium. It is an automatic valve, also known as a check valve, a one-way valve, a return valve or an isolation valve. The movement mode of the valve disc is divided into lift type and swing type. The lift check valve is similar in structure to the globe valve, except that it lacks the valve stem that drives the valve disc. The medium flows in from the inlet side (lower side) and flows out from the outlet side (upper side). When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the valve is opened. Conversely, the valve is closed when the medium flows back. The swing check valve has a disc that is inclined and can rotate around the axis, and the working principle is similar to that of the lift check valve. The check valve is often used as the bottom valve of the pumping device, which can prevent the backflow of water. The check valve is used in combination with the globe valve, which can play the role of safety isolation.

After the check valve is produced and processed, the check valve needs to be sealed and tested. The main testing steps include: opening the check valve passage, filling the valve cavity with water (or kerosene), and raising the pressure to the pressure required by the strength test, testing the valve. Check the body, valve cover, gasket and packing for leakage; close the valve circuit, pressurize one side of the check valve to the nominal pressure, and check for leakage from the other side; turn the check valve upside down, and the test is reversed side. Through the above steps, it can be analyzed whether the basic working state of the check valve is abnormal.

The check valve and the detection device are generally connected by flanges, but there are various types of check valves on the market, and the flange sizes of the check valves are also different. The detection device in the prior art cannot replace the connecting flange at will. When testing different types of check valves, the staff need to use different testing equipment to test the seal of the check valve, which not only reduces the work efficiency, but also greatly improves the economic investment of the staff.

Therefore, in view of the above technical problems, it is necessary to provide a check valve processing inspection table and inspection method.

technical problem

The purpose of the present invention is to provide a check valve processing testing platform and a testing method, so as to solve the problem that the above check valve testing equipment cannot replace the connecting flange of the check valve at will, resulting in low testing efficiency for workers and large capital investment. problem.

technical solutions

In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

A detection table for check valve processing comprises a main body of the inspection table, a chute is excavated on the main body of the detection table, and an active connector is slidably connected in the chute;

The active connector includes a sliding block, the sliding block is arranged in the chute, a first base is connected to one end of the sliding block away from the main body of the detection table, and a first connecting seat is connected to the first base, A first installation pipe is installed on the first connection seat, a first connection flange is arranged in the first installation pipe, and an extrusion-type fixing mechanism and an extruded fixing mechanism are connected between the first installation pipe and the first connection flange. Auxiliary limit mechanism;

The extrusion-type fixing mechanism includes an air bag, a side of the air bag away from the first installation tube is provided with a plurality of evenly distributed metal plates, and a strong self-priming engaging mechanism matched with the metal plates is installed on the air bag.

An auxiliary connecting piece is installed on the main body of the inspection table, and the auxiliary connecting piece includes a second base, the second base is fixedly connected with the main body of the inspection table, and a second connecting seat is connected to the second base, so The side of the second connection seat close to the active connector is connected with a second installation pipe, the second installation pipe is provided with a second connection flange matching the first connection flange, and the second installation pipe is provided with a second connection flange. There are sponges.

Further, the sliding slot is provided with a sliding rod, which is convenient for the sliding block to slide on the sliding rod, so that the distance between the active connecting piece and the auxiliary connecting piece can be adjusted, which is suitable for different types of check valve connection methods. A first bearing is rotatably connected between the sliding rod and the main body of the detection table, the sliding rod is arranged through the main body of the detection table, and a second bearing is connected between the end of the sliding rod away from the first bearing and the main body of the detection table , which is convenient for the sliding rod to rotate. The end of the sliding rod outside the chute is connected with a handle, which is convenient for the user to hold and control the rotation of the sliding rod. The instrument panel is installed on the main body of the detection table, which is convenient for observation. Humidity sensor reading.

Further, the second bearing is provided with a pair of locking pins, which can limit the rolling of the sliding rod, avoid the sliding phenomenon of the active connector during use, and greatly improve the stability of the active connector.

Further, a water injection pipe is installed on the first installation pipe, and the water injection pipe is arranged through the first installation pipe, so as to facilitate the external connection of the water pipe, so as to facilitate the sealing detection of the check valve by water.

Further, the first installation pipe is provided with a gas injection nozzle that matches the airbag, and the airbag can be inflated through the gas injection nozzle. The gas injection nozzle is covered with a plug to prevent gas leakage and increase the first A connection tightness between the installation pipe and the first connection flange.

Further, the auxiliary limit mechanism includes a limit post, the metal plate is provided with a slot matching the limit post, and the slot is engaged with the limit post to play the role of auxiliary limit. The first connecting flange is provided with a slideway matched with the limiting column, an elastic rope is connected between the limiting column and the first connecting flange, and a limiting block is arranged on the side wall of the limiting column, The first connecting flange is provided with a limit groove matched with the limit block, so as to facilitate the sliding of the limit position column, and the slideway is communicated with the limit groove.

Further, the strong self-priming engaging mechanism includes a mounting seat, the mounting seat is provided with a through cavity, a movable rod is slidably connected in the through cavity, and one end of the movable rod located in the airbag is connected with a contact plate, The mounting seat is provided with a snap cavity matching the contact plate, which accommodates the contact plate, improves the sealing effect of the airbag, and avoids gas leakage. A spring is connected between the mounting seat and the contact plate, so that the contact plate is not When subjected to gas pressure, it can rebound to increase the automation effect. The spring is sleeved on the outer side of the movable rod. The side of the contact plate close to the mounting seat is provided with a pair of sealing columns, and the mounting seat is provided with a matching sealing column. The sealing cavity is provided with the sealing column, and the sealing column is engaged with the sealing cavity, which greatly increases the overall sealing effect. The mounting seat is provided with a spring slot matching the spring to accommodate the spring. connected.

Further, one end of the movable rod away from the contact plate is connected with a connecting plate, the connecting plate is fixedly connected with a conductive plate, the conductive plate is made of conductive metal material, and the metal plate is provided with a sliding cavity matching the connecting plate. , it is convenient for the power supply to slide, a power supply is installed in the connecting plate, the voltage of the power supply is V, and the power supply is within the safe voltage range of the human body, so as to avoid the risk of electric shock for the staff, a pair of contacts are connected on the conductive plate, and the contact A first wire is connected between the head and the power supply, so that the conductive plate is charged. A pair of metal rods are arranged in the metal plate, and a second wire is sleeved on the outer side of the metal rod. Magnetically, a pair of the second wires are connected.

Further, a humidity sensor is arranged in the second installation pipe, the humidity sensor is electrically connected to the instrument panel, an observation groove is arranged on the second installation pipe, and an acrylic plate is arranged in the observation groove.

Based on the detection method of the check valve processing detection table in the above-mentioned embodiment, the detection method includes the following steps:

S1. According to needs, select a suitable first connection flange, insert the first connection flange into the first installation pipe, and inflate the airbag through the gas injection nozzle on the first installation pipe;

S2. The airbag begins to expand under the action of the gas. The expanded airbag can squeeze the contact plate, and the contact plate can drive the connecting plate on the movable rod to slide in the sliding cavity until the sealing column on the contact plate is engaged in the sealing cavity. At this time, the spring can be stored in the sealing cavity to realize the sealing between the contact plate and the mounting seat;

S3. The conductive plate is in contact with a pair of metal rods, so that the power supply, contacts, metal rods and the second wire form a closed loop, and the metal rod generates strong magnetism under the action of the second wire, which attracts the first connection flange;

S4. The limit post in the first connecting flange slides in the slideway under the action of strong magnetism until the limit post is engaged in the slot on the metal plate, so as to realize the fixation of the first installation pipe and the first connection flange;

S5. The installation of auxiliary connectors can repeat the steps of S1-S4;

S6. Adjust the distance between the active connector and the auxiliary connector by rotating the handle. After adjusting the distance, use the locking nail on the second bearing to lock the second bearing to avoid the rotation of the handle during the detection process. , install the check valve between the first connecting flange and the second connecting flange, connect it with the water injection pipe on the first installation pipe through an external pipe, and inject water into the first installation pipe to detect the sealing of the check valve sex;

S7. The user observes the change of the sponge through the acrylic plate on the second connecting flange. If water enters the second connecting flange through the check valve, the sponge will turn red, indicating that the sealing effect of the check valve is poor and there is water Leakage, at the same time, the data analysis of the humidity sensor can be observed through the instrument panel, so as to grasp the tightness of the check valve in more detail;

S8. After the detection is completed, first disconnect the external water pipe, drain the water in the first installation pipe through the water injection pipe, remove the check valve, and repeat the steps S1-S7 if the detection needs to be repeated;

S9. When the first connecting flange needs to be replaced, the gas in the airbag is discharged through the gas injection nozzle, and the contact plate rebounds naturally under the action of the spring, so that the sealing column is separated from the sealing cavity, and at the same time, the conductive plate is disconnected from the metal rod. There is an open circuit between the conductive plate, the power supply, the metal rod and the second wire, the metal rod does not generate strong magnetism, the metal plate and the first connecting flange are not attracted, the limit post rebounds under the action of the elastic rope, and the limit post is released from the card so that the first connecting flange can be quickly removed. When installing other types of first connecting flanges, repeat the steps S1-S4.

beneficial effect

Compared with the prior art, the present invention has the following advantages:

Through the cooperative arrangement of the strong self-priming clamping mechanism and the auxiliary limiting mechanism, the present invention facilitates the staff to quickly replace the check valve connecting flange, so that the detection mechanism can detect different types of check valves, and the application scope of the detection mechanism is expanded. The staff does not need to rely on other testing and testing, which greatly improves the testing efficiency of the staff and greatly reduces the economic investment of the staff.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a perspective view of a check valve processing inspection table according to an embodiment of the present invention;

FIG. 2 is a front view of a check valve processing inspection table according to an embodiment of the present invention;

2 is a cross-sectional view of a check valve processing inspection table according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3 according to an embodiment of the present invention;

5 is a perspective view of an active connector in an embodiment of the present invention;

6 is a perspective view of a first connecting flange in an embodiment of the present invention;

7 is a cross-sectional view of a first connecting flange in an embodiment of the present invention;

FIG. 8 is a schematic diagram of the structure at B in FIG. 7 according to an embodiment of the present invention.

In the picture: 1. Main body of the inspection table, 101. Chute, 102. Slide rod, 103. First bearing, 104. Second bearing, 105. Grip, 106. Instrument panel, 2. Active connector, 201. Slider, 202. First base, 203. First connection seat, 204. First installation pipe, 205. First connection flange, 206. Water injection pipe, 207. Air injection nozzle, 208. Slideway, 209. Limit Position post, 210. Elastic rope, 211. Limit block, 212. Limit slot, 3. Squeeze fixing mechanism, 301. Airbag, 302. Metal plate, 303. Mounting seat, 304. Active rod, 305. Contact Plate, 306. Spring, 307. Snap cavity, 308. Sealing column, 309. Sealing cavity, 310. Spring slot, 311. Connecting plate, 312. Conductive plate, 313. Power supply, 314. Contact, 315. Slide Cavity, 316. Metal rod, 317. Second wire, 4. Auxiliary connector, 401. Second base, 402. Second connection seat, 403. Second installation tube, 404. Second connection flange, 405. Sponge, 406. Humidity sensor, 407. Acrylic plate.

Embodiments of the present invention

The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and the structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are all included in the protection scope of the present invention.

The present invention discloses a testing table for check valve processing. Referring to FIGS. 1 to 3 , it includes a testing table main body 1, a chute 101 is drilled on the testing table main body 1, and an active connection is slidably connected in the chute 101. Piece 2.

Among them, the sliding slot 101 is provided with a sliding rod 102, which is convenient for the sliding block 201 to slide on the sliding rod 102, so that the distance between the active connector 2 and the auxiliary connector 4 can be adjusted, which is suitable for different types of non-return The valve connecting flange, a first bearing 103 is rotatably connected between the sliding rod 102 and the main body 1 of the testing table, the sliding rod 102 is arranged through the main body 1 of the testing table, and the end of the sliding rod 102 away from the first bearing 103 is between the main body 1 of the testing table A second bearing 104 is connected to facilitate the rotation of the sliding rod 102. A pair of locking pins are provided on the second bearing 104, which can limit the rolling of the sliding rod 102 and avoid the sliding phenomenon of the active connector 2 during use. The stability of the active connector 2 is greatly improved. A handle 105 is connected to the end of the slide bar 102 outside the chute 101, which is convenient for the user to hold, thereby facilitating the control of the rotation of the slide bar 102. The instrument panel 106 is convenient to observe the readings of the humidity sensor 406 .

1-5, the active connector 2 includes a slider 201, and the sliding of the slider 201 can drive the first connecting flange 205 to slide, so that the first connecting flange 205 and the second connecting flange can be adjusted. The distance between 404, the slider 201 is set in the chute 101, the first base 202 is connected to the end of the slider 201 away from the main body 1 of the test table, and the first base 202 is connected to the first connection seat 203, the first connection A first installation pipe 204 is installed on the seat 203, which is convenient for water injection. The first installation pipe 204 is provided with a first connection flange 205. The first connection flange 205 can be freely selected according to needs, which is convenient for installing the check valve. A water injection pipe 206 is installed on the installation pipe 204, and an external water pipe is installed on the water injection pipe 206, so that water can enter into the first installation pipe 204, thereby entering the check valve, and the water injection pipe 206 is arranged through the first installation pipe 204, which is convenient for External water pipe, so as to facilitate the water seal detection of the check valve.

Referring to FIGS. 3-4 , the first installation tube 204 and the first connecting flange 205 are connected with a squeeze-type fixing mechanism 3 and an auxiliary limiting mechanism. The squeeze-type fixing mechanism 3 includes an air bag 301 , and the air bag 301 can Inflating and expanding, it is convenient to fix the first installation tube 204 and the first connection flange 205. The side of the airbag 301 away from the first installation tube 204 is provided with a plurality of evenly distributed metal plates 302. The plate 302 is an arc-shaped part, which is convenient for engaging the arc surface of the first connecting flange 205, so that the first installation pipe 204 is tightly connected with the first connecting flange 205 to avoid water leakage. The air bag 301 is installed with a matching metal plate 302 The strong self-priming clamping mechanism makes the connection between the first installation pipe 204 and the first connection flange 205 more tightly.

Specifically, the first installation tube 204 is provided with a gas injection nozzle 207 that matches the airbag 301, and the airbag 301 can be inflated through the gas injection nozzle 207. The gas injection nozzle 207 is covered with a plug to prevent gas leakage. The connection tightness between the first installation pipe 204 and the first connection flange 205 is increased.

6-8, the auxiliary limit mechanism includes a limit post 209, and the metal plate 302 is provided with a slot matching the limit post 209, and the limit post 209 is engaged with the slot to play an auxiliary limit. The first connecting flange 205 is provided with a slideway 208 that matches the limit post 209, an elastic rope 210 is connected between the limit post 209 and the first connecting flange 205, and the side of the limit post 209 A limit block 211 is arranged on the wall, and a limit slot 212 matching the limit block 211 is arranged on the first connecting flange 205. The length of the limit slot 212 is greater than the depth of the slot, which facilitates the sliding of the limit post 209. The slideway 208 communicates with the limiting groove 212 .

3 to 4 , the strong self-priming engagement mechanism includes a mounting seat 303, a through cavity is provided on the mounting seat 303, a movable rod 304 is slidably connected in the through cavity, and one end of the movable rod 304 located in the airbag 301 is connected with a The contact plate 305, the gas squeezes the contact plate 305, which can drive the movable rod 304 to slide, and the mounting seat 303 is provided with an engaging cavity 307 matching the contact plate 305, which is used to accommodate the contact plate 305 and improve the sealing effect of the air bag 301. , to avoid gas leakage, a spring 306 is connected between the mounting seat 303 and the contact plate 305, so that the contact plate 305 can rebound when not under gas pressure, increasing the automation effect, the spring 306 is sleeved on the outer side of the movable rod 304, contact A pair of sealing posts 308 are provided on the side of the plate 305 close to the mounting seat 303. The mounting seat 303 is provided with a sealing cavity 309 matching the sealing column 308. The sealing column 308 is engaged with the sealing cavity 309, which greatly increases the overall sealing effect. The spring 303 is provided with a spring placement groove 310 matched with the spring 306 , the spring 306 is accommodated, the spring placement groove 310 and the sealing cavity 309 are all communicated with the engaging cavity 307 .

Referring to FIG. 4 , one end of the movable rod 304 away from the contact plate 305 is connected to a connecting plate 311 , and a conductive plate 312 is fixedly connected to the connecting plate 311 . The conductive plate 312 is made of conductive metal material. The matching sliding cavity 315 facilitates the sliding of the power supply 313. The power supply 313 is installed in the connecting plate 311. The voltage of the power supply 313 is 24V, and the power supply 313 is within the safety voltage range of the human body to avoid the risk of electric shock for the staff. The conductive plate 312 is connected to There is a pair of contacts 314, a first wire is connected between the contacts 314 and the power source 313, so that the conductive plate 312 is charged, a pair of metal rods 316 are arranged in the metal plate 302, and the outer side of the metal rod 316 is sleeved with a second wire 317, The second wire 317 can energize the metal rod 316 to generate strong magnetism, and a pair of the second wires 317 are connected to each other.

Referring to FIGS. 1 to 3 , an auxiliary connector 4 is installed on the main body 1 of the inspection table. The auxiliary connector 4 includes a second base 401 , which is fixedly connected to the main body 1 of the inspection table. A second connection seat 402 is connected, and the side of the second connection seat 402 close to the active connector 2 is connected with a second installation pipe 403 , and a second installation pipe 403 is provided in the second installation pipe 403 that matches the first connection flange 205 . The connecting flange 404, the second connecting flange 404 and the second installation pipe 403 are connected with a squeeze-type fixing mechanism 3 and an auxiliary limiting mechanism for auxiliary fixing of the check valve, and the second installation pipe 403 is provided with a sponge 405, the sponge 405 is provided with phenolphthalein, which turns red when meeting water, which is convenient for staff to observe. The second installation tube 403 is provided with a humidity sensor 406, and the humidity sensor 406 is electrically connected to the instrument panel 106. The second installation An observation groove is provided on the tube 403, and an acrylic plate 407 is provided in the observation groove.

Based on the detection method of the check valve processing detection table of the above-mentioned embodiment, the detection method includes the following steps:

S1. Select a suitable first connection flange 205 as required, insert the first connection flange 205 into the first installation pipe 204, and inflate the airbag 301 through the air injection nozzle 207 on the first installation pipe 204;

S2. The airbag 301 begins to expand under the action of the gas. The inflated airbag 301 can squeeze the contact plate 305, and the contact plate 305 can drive the connecting plate 311 on the movable rod 304 to slide in the sliding cavity 315 until the seal on the contact plate 305 is reached. The post 308 is engaged in the sealing cavity 309, and the spring 306 can be accommodated in the sealing cavity 309 at this time, so as to realize the sealing between the contact plate 305 and the mounting seat 303;

S3. The conductive plate 312 is in contact with a pair of metal rods 316, so that the power supply 313, the contacts 314, the metal rods 316 and the second wire 317 form a closed loop, and the metal rod 316 generates strong magnetism under the action of the second wire 317, and the strong magnetic attraction the first connecting flange 205;

S4. The limit post 209 in the first connecting flange 205 slides in the slideway 208 under the action of strong magnetism until the limit post 209 is engaged in the slot on the metal plate 302, so that the first installation tube 204 and the second a fixing of the connecting flange 205;

S5. The installation of the auxiliary connector 4 can repeat the steps of S1-S4;

S6. Adjust the distance between the active connector 2 and the auxiliary connector 4 by rotating the handle 105. After adjusting the distance, use the locking nail on the second bearing 104 to lock the second bearing 104 to avoid the handle 105 During the rotation of the detection process, the check valve is installed between the first connecting flange 205 and the second connecting flange 404, and is connected to the water injection pipe 206 on the first installation pipe 204 through an external pipeline, and the first installation Pipe 204 is filled with water to test the tightness of the check valve;

S7. The user observes the change of the sponge 405 through the acrylic plate 407 on the second connecting flange 404. If water enters the second connecting flange 404 through the check valve, the sponge 405 will turn red, indicating that the check valve is sealed The effect is poor, and there is water leakage. At the same time, the data analysis of the humidity sensor 406 can be observed through the instrument panel 106, so as to grasp the tightness of the check valve in more detail;

S8. After the detection is completed, first disconnect the external water pipe, drain the water in the first installation pipe 204 through the water injection pipe 206, remove the check valve, and repeat the steps S1-S7 if the detection needs to be repeated;

S9. When the first connecting flange 205 needs to be replaced, the gas in the airbag 301 is discharged through the gas injection nozzle 207, and the contact plate 305 naturally rebounds under the action of the spring 306, so that the sealing column 308 is separated from the sealing cavity 309, and also makes the conductive plate 312 is disconnected from the metal rod 316, the conductive plate 312, the power supply 313, the metal rod 316 and the second wire 317 are disconnected, the metal rod 316 does not generate strong magnetism, the metal plate 302 and the first connecting flange 205 are not attracted, limited. The positioning post 209 rebounds under the action of the elastic rope 210, and the limiting post 209 is separated from the slot, so that the first connecting flange 205 can be quickly removed. When installing other types of first connecting flanges 205, repeat the steps S1-S4 .

As can be seen from the above technical solutions, the present invention has the following beneficial effects:

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

A testing table for processing a check valve, comprising a testing table main body (1), characterized in that a chute (101) is excavated on the testing table main body (1), and a sliding groove (101) is slidably connected in the chute (101). Active connector (2);

The active connector (2) includes a slider (201), the slider (201) is arranged in the chute (101), and the slider (201) is connected to one end away from the main body (1) of the detection table There is a first base (202), a first connection seat (203) is connected to the first base (202), a first installation pipe (204) is installed on the first connection seat (203), and the first connection seat (203) is An installation pipe (204) is provided with a first connecting flange (205), and an extruded fixing mechanism (3) and auxiliary components are connected between the first installation pipe (204) and the first connecting flange (205). limit mechanism;

The extrusion-type fixing mechanism (3) includes an airbag (301), and a plurality of evenly distributed metal plates (302) are provided on the side of the airbag (301) away from the first installation tube (204), and the airbag (301) 301) is installed with a strong self-priming engaging mechanism matched with the metal plate (302);

An auxiliary connector (4) is installed on the test table main body (1), the auxiliary connector (4) includes a second base (401), and the second base (401) is connected to the test table main body (1). ) is fixedly connected, the second base (401) is connected with a second connection seat (402), and the side of the second connection seat (402) close to the active connector (2) is connected with a second installation pipe ( 403), the second installation pipe (403) is provided with a second connection flange (404) matching the first connection flange (205), and the second installation pipe (403) is provided with a sponge ( 405).
The inspection table for check valve processing according to claim 1, characterized in that a sliding rod (102) is arranged in the chute (101), and the sliding rod (102) is connected to the main body (1) of the inspection table. A first bearing (103) is rotatably connected between ), the sliding rod (102) is arranged through the main body (1) of the detection table, and one end of the sliding rod (102) away from the first bearing (103) is connected to the main body of the detection table (102). 1) A second bearing (104) is connected therebetween, a handle (105) is connected to one end of the sliding rod (102) outside the chute (101), and an instrument is installed on the main body (1) of the test table Desk (106).
The inspection table for processing a check valve according to claim 2, characterized in that a pair of locking pins are provided on the second bearing (104).
The inspection table for check valve processing according to claim 1, characterized in that a water injection pipe (206) is installed on the first installation pipe (204), and the water injection pipe (206) penetrates through the first installation pipe (204). Tube (204) set.
The inspection table for check valve processing according to claim 1, characterized in that, the first installation pipe (204) is provided with a gas injection nozzle (207) matched with the air bag (301), and the A plug is provided on the top cover of the gas injection nozzle (207).
The inspection table for check valve processing according to claim 1, wherein the auxiliary limit mechanism comprises a limit post (209), and the metal plate (302) is provided with a limit post ( 209) matching slot, the first connecting flange (205) is provided with a slideway (208) that matches the limit post (209), the limit post (209) is connected with the first connection method An elastic rope (210) is connected between the flanges (205), a limit block (211) is provided on the side wall of the limit post (209), and a limit block (211) is provided on the first connecting flange (205) A limit groove (212) matched with the block (211), and the slideway (208) communicates with the limit groove (212).
The inspection table for check valve processing according to claim 1, characterized in that the strong self-priming engaging mechanism comprises a mounting seat (303), and a through cavity is provided on the mounting seat (303), so that the A movable rod (304) is slidably connected to the through cavity, one end of the movable rod (304) located in the airbag (301) is connected with a contact plate (305), and the mounting seat (303) is provided with a contact plate (304). 305) a matching snap cavity (307), a spring (306) is connected between the mounting seat (303) and the contact plate (305), the spring (306) is sleeved on the outer side of the movable rod (304) , a pair of sealing columns (308) are arranged on the side of the contact plate (305) close to the mounting seat (303), and the mounting seat (303) is provided with a sealing cavity (309) matching the sealing column (308), The mounting seat (303) is provided with a spring placement groove (310) matching the spring (306), and both the spring placement groove (310) and the sealing cavity (309) communicate with the engaging cavity (307).
The inspection table for check valve processing according to claim 7, characterized in that a connecting plate (311) is connected to the end of the movable rod (304) away from the contact plate (305), and the connecting plate (311) ) is fixedly connected with a conductive plate (312), the metal plate (302) is provided with a sliding cavity (315) matching the connection plate (311), and the connection plate (311) is installed with a power supply (313) , a pair of contacts (314) are connected to the conductive plate (312), a first wire is connected between the contacts (314) and the power supply (313), and a pair of metal A rod (316), a second wire (317) is sleeved on the outer side of the metal rod (316), and a pair of the second wires (317) are connected.
The inspection table for check valve processing according to claim 1 or 2, characterized in that, a humidity sensor (406) is arranged in the second installation pipe (403), and the humidity sensor (406) Electrically connected to the instrument panel (106), an observation groove is provided on the second installation pipe (403), and an acrylic plate (407) is provided in the observation groove.
A detection method for a check valve processing detection table, characterized in that it comprises the following steps:

S1. Select an appropriate first connection flange (205) as required, insert the first connection flange (205) into the first installation pipe (204), and pass the gas injection nozzle (204) on the first installation pipe (204). 207) Inflate the airbag (301);

S2. The air bag (301) starts to expand under the action of the gas, the expanded air bag (301) can squeeze the contact plate (305), and the contact plate (305) can drive the connecting plate (311) on the movable rod (304) to slide in the sliding cavity Slide in (315) until the sealing column (308) on the contact plate (305) is engaged in the sealing cavity (309), at this time the spring (306) can be accommodated in the sealing cavity (309) to realize the contact plate ( 305) sealing with the mounting seat (303);

S3. The conductive plate (312) is in contact with a pair of metal rods (316), so that the power supply (313), the contact (314), the metal rod (316) and the second wire (317) form a closed loop, and the metal rod (316) is in the Under the action of the second wire (317), strong magnetism is generated, and the strong magnetism attracts the first connecting flange (205);

S4. The limit post (209) in the first connecting flange (205) slides in the slideway (208) under the action of strong magnetism until the limit post (209) is engaged with the slot on the metal plate (302). inside, the first installation pipe (204) and the first connection flange (205) are fixed;

S5. The installation of the auxiliary connector (4) can repeat the steps S1-S4;

S6. Adjust the distance between the active connector (2) and the auxiliary connector (4) by turning the handle (105). After adjusting the distance, use the locking nail on the second bearing (104) to lock the second bearing (104) Lock it to avoid the rotation of the handle (105) during the detection process, install the check valve between the first connecting flange (205) and the second connecting flange (404), and connect the A water injection pipe (206) on an installation pipe (204) is connected, and water is injected into the first installation pipe (204) to test the tightness of the check valve;

S7. The user observes the change of the sponge (405) through the acrylic plate (407) on the second connecting flange (404). If water enters the second connecting flange (404) through the check valve, the sponge (405) will It turns red, indicating that the sealing effect of the check valve is poor, and there is water leakage. At the same time, the data analysis of the humidity sensor (406) can be observed through the instrument panel (106), so as to grasp the sealing performance of the check valve in more detail;

S8. After the detection is completed, first disconnect the external water pipe, drain the water in the first installation pipe (204) through the water injection pipe (206), remove the check valve, and repeat steps S1-S7 if the detection needs to be repeated;

S9. When the first connecting flange (205) needs to be replaced, the gas in the air bag (301) is discharged through the gas injection nozzle (207), and the contact plate (305) naturally rebounds under the action of the spring (306), so that the sealing column ( 308) is separated from the sealed cavity (309), and at the same time, the conductive plate (312) is disconnected from the metal rod (316), the conductive plate (312), the power supply (313), the metal rod (316) and the second wire (317) The metal rod (316) does not generate strong magnetism, the metal plate (302) does not attract the first connecting flange (205), and the limit post (209) rebounds under the action of the elastic rope (210), limiting the The position post (209) is separated from the card slot, so that the first connecting flange (205) can be quickly removed. When installing other types of first connecting flanges (205), repeat the steps S1-S4.