An airtightness detection device for electromagnetic valve production that is easy to connect

Abstract

The present invention relates to the technical field of production machinery, and discloses an airtightness detection device for electromagnetic valve production that is easy to connect, comprising a shell and a valve body to be detected, wherein both sides of the inner wall of the shell are connected with connecting frames, and the sides of the connecting frames close to each other are connected with side plates, two guide rollers are rotatably provided between the side plates, a conveyor belt is sleeved and connected between the two guide rollers, and multiple groups of support rods are connected on both sides of the conveyor belt, and both ends of the support rods are connected with a first support arm and a second support arm, and the top of the first support arm is rotatably provided with the same mobile platform, and the top of the mobile platform is connected with two lifting mechanisms. The present invention can automatically connect with the connecting end of the valve body to be detected through the arrangement between the telescopic rod, the progressive unit, the docking mechanism and the extrusion mechanism, thereby improving the effect of automation, ensuring a tight connection, reducing manpower consumption, and at the same time ensuring the sealing effect of the connection and ensuring accurate detection.

Description

Technical Field

[0001] The present invention relates to the technical field of production machinery, in particular to an airtightness detection device for electromagnetic valve production that is easy to connect. Background Art

[0002] The main reason why solenoid valves need to be tested for air tightness after production is to ensure their sealing performance and quality. As an important component for controlling the flow of gas or liquid, the sealing performance of the solenoid valve directly affects the working effect and safety of the equipment or system. Through air tightness testing, possible leakage problems can be eliminated to ensure that the product meets the expected use standards and requirements. Leakage of the solenoid valve may cause unstable system operation, energy waste or environmental pollution.

[0003] At present, when conducting air tightness testing on solenoid valves, the solenoid valves need to be placed in a sealed chamber in the testing equipment, and then inspected using a vacuum valve or helium detector, or the connecting pipe of the gas-driven equipment is connected to one end of the solenoid valve for inspection. On the one hand, the above methods have low detection efficiency and can only perform air tightness testing one by one, and can only test one solenoid valve at a time. The second method requires the operator to repeatedly operate the connection of the pipe fittings. Manual operation makes it difficult to ensure the tightness of the connection between the pipe fittings, affecting the accuracy of the test results. For this reason, an air tightness testing device for solenoid valve production that is easy to connect is proposed. Summary of the Invention

[0004] The object of the present invention is to provide an airtightness detection device for electromagnetic valve production that is easy to connect, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a shell and a valve body to be detected, both sides of the inner wall of the shell are connected with connecting frames, the sides of the connecting frames close to each other are connected with side plates, two guide rollers are rotatably arranged between the side plates, a conveyor belt is sleeved and connected between the two guide rollers, multiple groups of support rods are connected on both sides of the conveyor belt, both ends of the support rods are connected with a first support arm and a second support arm, the top of the first support arm is rotatably provided with the same moving platform, the top of the moving platform is connected with two lifting mechanisms, one side of the two lifting mechanisms is connected with a clamping unit, the top of the moving platform is provided with a groove, the bottom of the groove The end is connected with a joint power mechanism, one side of the lifting mechanism is connected with a controller, the top of the mobile platform is connected with a battery and a warning light, the top of the second support arm is rotatably provided with an advancement unit, the top of the advancement unit is connected with a docking mechanism, one end of the docking mechanism is connected with an extrusion mechanism and a protective frame, a plurality of balls are rotatably provided on the side of the protective frame close to the extrusion mechanism, both ends of the guide roller pass through the side plate and are connected with a pipe rack, spring pipe rings are sleeved and connected between the pipe racks, one side of the spring pipe ring is connected with an intake equipment connecting pipe, one side of the spring pipe ring is connected with multiple groups of intake pipes, and the other end of the intake pipe is connected with the docking mechanism.

[0006] Preferably, the lifting mechanism includes a valve pipe bracket, a bidirectional threaded rod is rotatably provided on one side of the valve pipe bracket, one end of the bidirectional threaded rod extends into the valve pipe bracket, and both sides are threadedly connected with extrusion push plates, a support plate is provided at the top end of the valve pipe bracket, and a lower cone plate is connected to the bottom end of the support plate.

[0007] Preferably, one side of the extrusion push plate and both sides of the bottom end of the lower cone plate are provided with inclined surfaces and fit together, the clamping unit is connected to one side of the valve tube bracket, and the valve body to be tested is connected to the top of the lifting mechanism.

[0008] Preferably, the clamping unit includes a cylinder, the output end of the cylinder is connected to a push rack, one end of the push rack passes through the valve tube bracket and is connected to an extrusion plate, one side of the extrusion plate is connected to a positioning rubber cone, one side of the cylinder is connected to a fixing rack, and one side of the fixing rack is fixed to one side of the valve tube bracket.

[0009] Preferably, the electrical connection mechanism includes a base, a slot is provided at the top of the base, a power contact is connected to the inside of the slot, a wire groove is provided at the top of the base, a circuit board is connected to the bottom of the groove, and the circuit board is electrically connected to the power contact, controller, battery and warning light.

[0010] Preferably, the progressive unit includes a follower platform, a rotating plate is rotatably provided at the top of the follower platform, an internally threaded wheel is rotatably provided on one side of the top of the rotating plate, a driving motor is connected to one side of the follower platform, the output end of the driving motor passes through the follower platform and is connected to a driving wheel, and a transmission belt is sleeved and connected between the driving wheel and the internally threaded wheel.

[0011] Preferably, the rotating plate is slidably connected to the docking mechanism, the internal thread wheel is threadedly connected to the docking mechanism, a telescopic rod is rotatably provided on the top end of the follower platform, and the other end of the telescopic rod is rotatably connected to the rotating plate.

[0012] Preferably, the docking mechanism includes an externally threaded air pipe, a sealing plug is slidingly provided at one end of the externally threaded air pipe, a pressure gauge and an electrically controlled valve are connected to the other end of the externally threaded air pipe, a quick connector is connected to one end of the externally threaded air pipe, and a limiting stop head is connected to the end close to the sealing plug, and the air inlet pipe is connected to the quick connector.

[0013] Preferably, guide grooves are provided on both sides of the externally threaded air pipe, and the extrusion mechanism is connected to one end of the externally threaded air pipe.

[0014] Preferably, the extrusion mechanism includes a movable frame and a top plate, the top of the movable frame is connected to a servo motor, the output end of the servo motor is connected to a driving gear, side frames are connected on both sides of the movable frame, one side of the side frame is connected to a limiting arc ring, one side of the top plate is connected to a limiting frame, the limiting frame is slidably connected to the limiting arc ring, one side of the top plate is connected to an external gear ring, one side of the inner wall of the movable frame is connected to an inner support sliding frame, the inner support sliding frame is slidably connected to the guide groove, and the outer gear ring is threadedly connected to the external threaded air pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can automatically connect with the connection end of the valve body to be tested through the arrangement between the telescopic rod, the progressive unit, the docking mechanism and the extrusion mechanism, thereby improving the automation effect and ensuring a tight connection, effectively reducing manpower consumption, and at the same time ensuring a sealing effect of the connection and ensuring accurate detection;

[0017] 2. The present invention also allows the conveyor belt to be tested while driving the mobile platform and the docking mechanism through the arrangement of guide rollers, conveyor belts and support rods. New valve bodies to be tested can be added continuously for testing, and the airtightness effect can be tested by a pressure gauge, thereby ensuring the continuity of testing and improving the testing efficiency.

[0018] 3. Through the settings among the controller, battery and indicator light, the valve body to be tested can be opened or closed during the test, and the air tightness of the valve body to be tested under different states can be tested, thereby improving the detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0021] Figure 3 This is a partial structural diagram of an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0022] Figure 4 This is a schematic diagram of a partial side cross-section of an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure of the docking mechanism and the extrusion mechanism in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0024] Figure 6 This is a structural schematic diagram of a lifting mechanism in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0025] Figure 7 This is a schematic structural diagram of a progressive unit in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0026] Figure 8 This is a structural schematic diagram of a docking mechanism in an airtightness detection device for solenoid valve production that is easy to connect according to the present invention;

[0027] Figure 9 This is a schematic structural diagram of an extrusion mechanism in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0028] Figure 10 This is a schematic structural diagram of a joint electric mechanism in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention;

[0029] Figure 11 This is a structural schematic diagram of a protective frame in an airtightness detection device for electromagnetic valve production that is easy to connect according to the present invention.

[0030] In the figure: 1. housing; 111. valve body to be inspected; 2. connecting frame; 3. side plate; 4. guide roller; 41. pipe rack; 5. conveyor belt; 6. support rod; 7. first support arm; 71. second support arm; 8. mobile platform; 9. lifting mechanism; 91. valve pipe bracket; 92. two-way threaded rod; 93. extrusion push plate; 94. support plate; 95. lower cone plate; 10. clamping unit; 101. cylinder; 102. push frame; 103. extrusion plate; 104. positioning rubber cone; 11. groove; 12. joint mechanism; 121. base; 122. slot; 123. power contact; 124. wire duct; 13. controller; 14. battery; 15. warning light; 16. advancement unit; 161. follower platform; 162. Rotating plate; 163. Internally threaded wheel; 164. Driving motor; 165. Driving wheel; 166. Transmission belt; 17. Telescopic rod; 18. Docking mechanism; 181. Externally threaded air pipe; 182. Sealing plug; 183. Pressure gauge; 184. Electric control valve; 185. Quick connector; 186. Guide groove; 187. Limit stopper; 19. Extrusion mechanism; 191. Moving frame; 192. Top plate; 193. Servo motor; 194. Driving gear; 195. Side frame; 196. Limit arc ring; 197. Limit frame; 198. External gear ring; 199. Inner support sliding frame; 20. Protective frame; 201. Ball; 21. Intake pipe; 22. Spring tube ring; 222. Intake equipment connecting pipe. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-11The present invention provides a technical solution: it includes a shell 1 and a valve body 111 to be detected, and connecting frames 2 are fixedly installed on both sides of the inner wall of the shell 1, and side plates 3 are connected to the sides of the connecting frames 2 that are close to each other for support, two guide rollers 4 are rotatably arranged between the side plates 3, and a conveyor belt 5 is sleeved and connected between the two guide rollers 4, and multiple groups of support rods 6 are connected on both sides of the conveyor belt 5, and a first support arm 7 and a second support arm 71 are connected at both ends of the support rod 6. The top of the first support arm 7 is rotatably provided with the same moving platform 8, and two lifting mechanisms 9 are connected to the top of the moving platform 8 for lifting the two ends of the valve body 111 to be detected, and a clamping unit 10 is connected on one side of the two lifting mechanisms 9 for clamping and fixing the valve body 111 to be detected, and a groove 11 is provided on the top of the moving platform 8, which allows the valve head to be placed when the valve body 111 to be detected is installed and placed, and a coupling mechanism 12 is connected to the bottom of the groove 11 for connecting with the valve body 111 to be detected , a plurality of balls 201 are rotatably provided on the side of the protective frame 20 close to the squeezing mechanism 19, and a plurality of balls 201 are rotatably provided on the side of the protective frame 20 close to the squeezing mechanism 19, so as to reduce the friction between the two. The two ends of the guide roller 4 pass through the side plate 3 and are connected to the pipe frame 41. The spring pipe ring 22 is sleeved and connected between the pipe frames 41. One side of the spring pipe ring 22 is connected to the air intake device connecting pipe 222 for connecting to the external source driving device during airtightness detection. One side of the spring pipe ring 22 is connected to multiple groups of air intake pipes 21, and the other end of the air intake pipe 21 is connected to the docking mechanism 18;

[0033] like Figure 6 As shown, the lifting mechanism 9 includes a valve tube bracket 91, and a two-way threaded rod 92 is rotatably provided on one side of the valve tube bracket 91. One end of the two-way threaded rod 92 extends into the valve tube bracket 91, and both sides are threadedly connected with an extrusion push plate 93. Rotating the two-way threaded rod 92 can drive the two extrusion push plates 93 to move toward each other. A supporting plate 94 is provided on the top of the valve tube bracket 91. 94 is an arc-shaped setting and supports the pipes at both ends of the valve body 111 to be tested. The bottom end of the supporting plate 94 is connected to a lower cone plate 95, which squeezes One side of the push plate 93 and both sides of the bottom end of the lower cone plate 95 are provided with inclined surfaces, and fit together. When the two-way threaded rod 92 is rotated to drive the push plate 93 to move toward each other, the lower cone plate 95 can be squeezed upward through the inclined surface between it and the lower cone plate 95, thereby lifting the support plate 94 and adjusting the height of the valve body, so that the pipe parts of valve bodies of different sizes can be aligned with the docking mechanism 18 to ensure applicability. The clamping unit 10 is connected to one side of the valve pipe bracket 91 and is used to fix the valve body 111 to be tested.

[0034] like Figure 6 As shown, the clamping unit 10 includes a cylinder 101, and a push rack 102 is connected to the output end of the cylinder 101. One end of the push rack 102 passes through the valve tube bracket 91 and is connected to an extrusion plate 103. When the valve head portion of the valve body 111 to be tested is placed into the groove 11 and connected to the joint power mechanism 12, the cylinder 101 works to push the push rack 102 to move, and the push rack 102 pushes the internal extrusion plate 103. A positioning rubber cone 104 is connected to one side of the extrusion plate 103. 104 first supports the valve head of the valve body 111 to be tested, thereby fixing the valve head of the valve body 111 to be tested. A fixing rack is connected to one side of the cylinder 101, and one side of the fixing rack is fixed to one side of the valve tube bracket 91.

[0035] like Figure 10 As shown, the electrical connection mechanism 12 includes a base 121, and a slot 122 is provided at the top of the base 121 for inserting the wire terminal of the valve body 111 to be detected. The inner side of the slot 122 is connected to the power contact 123. After the terminal is installed and inserted into place, the terminal fits with the power contact 123. A wire groove 124 is provided at the top of the base 121, which can be used to clamp the wire when the wire of the valve body is placed. A circuit board is connected to the bottom of the groove 11, and the circuit board is electrically connected to the power contact 123, the controller 13, the battery 14 and the prompt light 15. The controller 13 is used to control the power effect between the battery 14 and the power contact 123, and the prompt light 15 lights up when power is on.

[0036] like Figure 7 As shown, the advancement unit 16 includes a follower platform 161, a rotating plate 162 is rotatably provided at the top of the follower platform 161, an internally threaded wheel 163 is rotatably provided on one side of the top of the rotating plate 162, a driving motor 164 is connected to one side of the follower platform 161, an output end of the driving motor 164 passes through the follower platform 161, and is connected to a driving wheel 165, a transmission belt 166 is sleeved and connected between the driving wheel 165 and the internally threaded wheel 163, the driving motor 164 drives the driving wheel 165 to rotate, and drives the internally threaded wheel 163 to rotate through the transmission belt 166. When the internal threaded wheel 163 rotates, it drives the docking mechanism 18 to move through the threaded connection with the external threaded air pipe 181. The rotating plate 162 is slidingly connected to the docking mechanism 18. The internal threaded wheel 163 is threadedly connected to the docking mechanism 18. A telescopic rod 17 is rotatably provided at the top of the follower platform 161. The other end of the telescopic rod 17 is rotatably connected to the rotating plate 162. The extension and contraction of the telescopic rod 17 drives the rotating plate 162 to rotate, thereby adjusting the position of the docking mechanism 18 so that the docking mechanism 18 is aligned with the two ends of the valve body 111 to be detected.

[0037] like Figure 8As shown, the docking mechanism 18 includes an externally threaded air pipe 181, and a sealing plug 182 is slidably provided at one end of the externally threaded air pipe 181. The extrusion mechanism 19 starts to push the protective frame 20, and the protective frame 20 pushes the sealing plug 182 to move along the externally threaded air pipe 181 until it presses against the limit stop 187. The other end of the externally threaded air pipe 181 is connected with an air pressure gauge 183 and an electric control valve 184, which are used to observe the air pressure inside the valve body during inspection, so as to facilitate the inspection of air tightness and the sealing of both ends of the valve body. One end of the externally threaded air pipe 181 is connected with a quick connector 185, which can be quickly connected to the air inlet pipe 21, and guide grooves 186 are provided on both sides of the externally threaded air pipe 181.

[0038] like Figure 9 As shown, the extrusion mechanism 19 includes a movable frame 191 and a top plate 192. A servo motor 193 is connected to the top of the movable frame 191, and a driving gear 194 is connected to the output end of the servo motor 193. When the servo motor 193 drives the driving gear 194 to rotate, the driving gear 194 drives the outer gear ring 198 to rotate. Through the threaded connection between the outer gear ring 198 and the external threaded air pipe 181, the outer gear ring 198 will drive the movable frame 191 to move through the connection between the limit frame 197 and the limit arc ring 196 when rotating. The movable frame 191 ensures balance during movement through the inner support sliding frame 199 on the inside. Side frames 195 are connected on both sides of the movable frame 191, and a limit arc ring 196 is connected on one side of the side frame 195. A limit frame 197 is connected on one side of the top plate 192, and the limit frame 197 is slidably connected to the limit arc ring 196.

[0039] The implementation principle of the sprayer with a mixing function in the embodiment of the present application is as follows: the telescopic rod 17 extends to push the advancement unit 16, so that the docking mechanism 18 is in a horizontal position, the valve head of the valve body 111 to be detected is placed in the groove 11, and before placement, the wire terminal of the valve body 111 to be detected is inserted into the slot 122 to connect it with the energized contact piece 123, and then the valve body 111 to be detected is placed on the support plate 94, and the screw 92 is rotated to adjust the position of the valve body, and the two ends of the valve body 111 to be detected are connected to the docking mechanism 1 8 is aligned, and then the clamping unit 10 starts working, thereby clamping and fixing the valve body 111 to be tested, and then the extrusion mechanism 19 drives the protection frame 20, and at the same time pushes the sealing plug 182 to one end of the external threaded air pipe 181 and abuts against the limit stopper 187, and then the driving motor 164 drives the driving wheel 165 to rotate, and drives the internal threaded wheel 163 to rotate through the transmission 166, thereby driving the external threaded air pipe 181 to move toward both ends of the valve body 111 to be tested, so that both ends of the sealing plug 182 are blocked, and then After being blocked, the squeezing mechanism 19 is started again to squeeze the sealing plug 182 to ensure the connection sealing effect between the two ends of the valve body 111 to be tested. Then, the external air source driving device injects gas into the spring tube ring 22 through the air inlet device connecting pipe 222, and then injects gas into the docking mechanism 18 through the air inlet pipe 21, thereby injecting gas into the valve body 111 to be tested. When a certain amount of gas is injected, the electric control valve 184 is closed to make the air pressure between the valve body 111 to be tested and the docking mechanism 18 constant. As the guide roller 4 rotates, the conveyor belt 5 rotates. The conveyor belt 5 drives the first support arm 7 and the second support arm 71 to move through the support rod 6, so that the movable platform 8 moves together with the docking mechanism 18 on both sides. The airtightness test is carried out while moving. The battery 14 and the energized contact piece 123 are energized through the control of the controller 13, thereby starting the valve body 111 to be tested to change the closed state, and then continue to test, thereby detecting the airtight state of the valve body 111 to be tested in the closed and open states.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An airtightness detection device for electromagnetic valve production that is easy to connect, comprising a housing (1) and a valve body (111) to be detected, characterized in that: The inner wall of the shell (1) is connected to a connecting frame (2) on both sides, and the side of the connecting frame (2) close to each other is connected to a side plate (3), two guide rollers (4) are rotatably arranged between the side plates (3), and a conveyor belt (5) is sleeved and connected between the two guide rollers (4), and multiple groups of support rods (6) are connected to both sides of the conveyor belt (5), and both ends of the support rod (6) are connected to a first support arm (7) and a second support arm (71), and the top of the first support arm (7) is rotatably provided with a same moving platform (8), and the top of the moving platform (8) is connected to two lifting mechanisms (9), and one side of each of the two lifting mechanisms (9) is connected to a clamping unit (10), and a groove (11) is provided at the top of the moving platform (8), and a joint power mechanism (12) is connected to the bottom of the groove (11), and one side of one of the lifting mechanisms (9) is connected to A controller (13) is provided. The top of the mobile platform (8) is connected to a battery (14) and a warning light (15). The top of the second support arm (71) is rotatably provided with a progress unit (16). The top of the progress unit (16) is connected to a docking mechanism (18). One end of the docking mechanism (18) is connected to an extrusion mechanism (19) and a protective frame (20). A plurality of balls (201) are rotatably provided on a side of the protective frame (20) close to the extrusion mechanism (19). Both ends of the guide roller (4) pass through the side plate (3) and are connected to a pipe frame (41). A spring pipe ring (22) is sleeved and connected between the pipe frames (41). One side of the spring pipe ring (22) is connected to an air intake device connecting pipe (222). One side of the spring pipe ring (22) is connected to multiple groups of air intake pipes (21). The other end of the air intake pipe (21) is connected to the docking mechanism (18).

2. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 1 is characterized in that: The lifting mechanism (9) includes a valve tube bracket (91), a bidirectional threaded rod (92) is rotatably provided on one side of the valve tube bracket (91), one end of the bidirectional threaded rod (92) extends into the valve tube bracket (91), and both sides are threadedly connected to an extrusion push plate (93), a supporting plate (94) is provided at the top end of the valve tube bracket (91), and a lower cone plate (95) is connected to the bottom end of the supporting plate (94).

3. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 2 is characterized in that: One side of the extrusion push plate (93) and both sides of the bottom end of the lower cone plate (95) are provided with inclined surfaces and fit together. The clamping unit (10) is connected to one side of the valve tube bracket (91), and the valve body to be tested (111) is connected to the top of the lifting mechanism (9).

4. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 3 is characterized in that: The clamping unit (10) comprises a cylinder (101), an output end of the cylinder (101) is connected to a push frame (102), one end of the push frame (102) passes through the valve tube bracket (91) and is connected to an extrusion plate (103), one side of the extrusion plate (103) is connected to a positioning cone (104), one side of the cylinder (101) is connected to a fixing frame, and one side of the fixing frame is fixed to one side of the valve tube bracket (91).

5. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 1 is characterized in that: The electrical coupling mechanism (12) comprises a base (121), a slot (122) is provided at the top of the base (121), an energized contact piece (123) is connected to the inner side of the slot (122), a wire groove (124) is provided at the top of the base (121), a circuit board is connected to the bottom of the groove (11), and the circuit board is electrically connected to the energized contact piece (123), the controller (13), the battery (14) and the warning light (15).

6. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 1, characterized in that: The advancement unit (16) comprises a follower platform (161), a rotating plate (162) is rotatably provided at the top of the follower platform (161), an internal thread wheel (163) is rotatably provided at one side of the top of the rotating plate (162), a driving motor (164) is connected to one side of the follower platform (161), an output end of the driving motor (164) passes through the follower platform (161) and is connected to a driving wheel (165), and a transmission belt (166) is sleeved and connected between the driving wheel (165) and the internal thread wheel (163).

7. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 6, characterized in that: The rotating plate (162) is slidably connected to the docking mechanism (18), the internal thread wheel (163) is threadedly connected to the docking mechanism (18), and a telescopic rod (17) is rotatably provided at the top end of the follower platform (161), and the other end of the telescopic rod (17) is rotatably connected to the rotating plate (162).

8. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 7, characterized in that: The docking mechanism (18) comprises an externally threaded air pipe (181), one end of the externally threaded air pipe (181) is slidably provided with a sealing rubber plug (182), the other end of the externally threaded air pipe (181) is connected to a pressure gauge (183) and an electric control valve (184), one end of the externally threaded air pipe (181) is connected to a quick connector (185), and the end close to the sealing rubber plug (182) is connected to a limit stopper (187), and the air inlet pipe (21) is connected to the quick connector (185).

9. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 8, characterized in that: Guide grooves (186) are provided on both sides of the externally threaded air pipe (181), and the extrusion mechanism (19) is connected to one end of the externally threaded air pipe (181).

10. The airtightness detection device for electromagnetic valve production that is easy to connect according to claim 9, characterized in that: The extrusion mechanism (19) comprises a moving frame (191) and a top plate (192). The top of the moving frame (191) is connected to a servo motor (193). The output end of the servo motor (193) is connected to a driving gear (194). Both sides of the moving frame (191) are connected to side frames (195). One side of each side frame (195) is connected to a limiting arc ring (196). One side of the top plate (192) is connected to a limiting frame (197). The limiting frame (197) is slidably connected to the limiting arc ring (196). One side of the top plate (192) is connected to an external gear ring (198). One side of the inner wall of the moving frame (191) is connected to an inner support sliding frame (199). The inner support sliding frame (199) is slidably connected to the guide groove (186). The external gear ring (198) is threadedly connected to the external threaded air pipe (181).

Images