CN216791510U

CN216791510U - Electromagnetic valve air tightness detection equipment

Info

Publication number: CN216791510U
Application number: CN202122860413.5U
Authority: CN
Inventors: 姚雳
Original assignee: Zhejiang Dupang Pneumatic Technology Co ltd
Current assignee: Zhejiang Dupang Pneumatic Technology Co ltd
Priority date: 2021-11-21
Filing date: 2021-11-21
Publication date: 2022-06-21
Anticipated expiration: 2031-11-21

Abstract

The utility model discloses a detection device, and more particularly relates to an electromagnetic valve air tightness detection device, which has the technical key points that: the electromagnetic valve air tightness detection device comprises an air source and a detection module which is communicated with the air source and indirectly detects the air tightness of the electromagnetic valve by controlling the air to enter and exit through an electromagnetic valve, wherein the detection module comprises a ventilation base, an air inlet and an air outlet are formed in the side end of the ventilation base, an air hole which is correspondingly communicated with the air inlet or the air outlet is formed in the upper surface of the ventilation base and is used for communicating with a through hole of the electromagnetic valve, a positioning structure used for fixedly clamping the electromagnetic valve and a coil used for electrically exciting the electromagnetic valve are further arranged on the upper surface of the ventilation base, and an air pressure switching module used for changing the output pressure of the air source by adjusting voltage is further arranged.

Description

Electromagnetic valve air tightness detection equipment

Technical Field

The utility model relates to the field of electromagnetic valve detection, in particular to electromagnetic valve air tightness detection equipment.

Background

The solenoid valve is as a common pneumatic element, need carry out the gas tightness detection to the completion article in process of production, the actual work process of the most simulation solenoid valves of current common solenoid valve gas tightness detection, through the continuous artificial excitation to the solenoid valve, whether smooth and easy motion of case, whether the leakproofness is good of detection solenoid valve, however because the air supply can have certain atmospheric pressure undulant during actual work, consequently still need further to detect the working condition that the solenoid valve is in under the high low pressure condition, make the workman when detecting the solenoid valve gas tightness like this, still need adjust air supply atmospheric pressure, lead to the testing process very loaded down with trivial details, low efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide electromagnetic valve air tightness detection equipment which has the advantages that high air pressure and low air pressure can be flexibly switched, and the electromagnetic valve air tightness can be conveniently detected.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides an electromagnetic valve gas tightness check out test set which characterized in that: including air supply and intercommunication air supply and through the indirect detection module who detects solenoid valve gas tightness of gaseous business turn over of solenoid valve control, detection module is including ventilating the base, the base side of ventilating is equipped with the air inlet and loses heart mouthful, and the base upper surface of ventilating still is equipped with the gas pocket that corresponds intercommunication air inlet or loses heart mouthful, the gas pocket is used for the through-hole of switch-on solenoid valve, and the base upper surface of ventilating still is equipped with the location structure who is used for the fixed dress card solenoid valve and carries out electric excitation's coil to the solenoid valve, still includes the atmospheric pressure switching module that changes air supply output pressure through adjusting voltage.

Through adopting above-mentioned technical scheme, during the use, by the base intercommunication solenoid valve of ventilating, the work of opening and shutting is carried out to rethread wire coil excitation solenoid valve, can indirectly judge the gas tightness situation of solenoid valve through the behavior of observing the disappointing mouth of the base of ventilating, accessible atmospheric pressure switching module quick adjustment air supply output pressure during, realizes the high low pressure switching of solenoid valve.

Further setting: the air pressure switching module comprises a proportional regulating valve and a direct-current power supply used for the proportional regulating valve, the proportional regulating valve is respectively communicated with an air inlet and an air source through a pipeline, at least 2 groups of resistors which are different in numerical value and are connected in parallel with each other are connected in series in a closed loop formed by the proportional regulating valve and the direct-current power supply, and a control switch used for controlling the resistors to be connected in each parallel loop is further arranged.

Through adopting above-mentioned technical scheme, during the use, only need to change every switching on and off of parallelly connected return circuit control switch, can transfer DC power supply's output current fast to the output atmospheric pressure of control proportion formula governing valve realizes the high-low pressure switching of the inside atmospheric pressure of base of ventilating fast.

Further setting: the utility model discloses a set up the solenoid valve, including the solenoid valve of fixing, the location structure includes and carries out the stand fixed through the solenoid valve assembly hole of pegging graft, stand quantity is 2, sets up perpendicularly at the base upper surface of ventilating, and the base upper surface of ventilating still is equipped with the screw thread post, and swing joint has the fixed block on the screw thread post, and the fixed block surface is equipped with the through-hole that the diameter is greater than the screw thread post, and the fixed block passes through the through-hole movable sleeve and establishes on the screw thread post, and screw thread post lower extreme is equipped with the elastic component that is used for supporting the fixed block, and the upper end that the screw thread post passed the fixed block is equipped with the fastening nut who is used for screwing and pushes down the fixed block.

Through adopting above-mentioned technical scheme, during the use, can be with the solenoid valve vertically be close to the base upper surface of ventilating, insert the pilot hole of solenoid valve by the stand, realize the preliminary butt joint of solenoid valve opening and the base gas pocket of ventilating, only need can drive the fixed block through the fastening nut of screwing afterwards and move down, during fastening nut unscrews, the fixed block can reset fast under the support of elastic component.

Further setting: the surface of the fixed block is also provided with a threaded hole, the threaded hole is in threaded connection with a limiting bolt which supports the ventilating base downwards in a propping mode and then reversely supports the fixed block, and the height of the limiting bolt is equal to that of the target detection electromagnetic valve.

Through adopting above-mentioned technical scheme, during operation, when fastening nut is screwed downwards, when the fixed block lower surface is contradicted and is pressed and hold the solenoid valve upper surface, spacing bolt can contact the top simultaneously and hold the base upper surface of ventilating for the fixed block both ends form fixed lever, offset the vertical effort that the in-process of ventilating produced the solenoid valve.

Further setting: the elastic piece is provided with a first gasket at the joint of the elastic piece and the fixed block, and a second gasket is arranged at the joint of the fixed block and the fastening nut.

Through adopting above-mentioned technical scheme for fastening nut and elastic component production originally and act on the static friction transfer of fixed block upper and lower surface and act on first gasket and second gasket, have realized the purpose of protection fixed block upper and lower surface, can keep the smoothness nature of fixed block when radially rotating simultaneously.

Further setting: the air pressure switching module further comprises a glass rotameter for feeding back the output pressure of an air source, and the air source is sequentially communicated with the proportional regulating valve, the glass rotameter and an air inlet of the ventilation base.

Through adopting above-mentioned technical scheme for in can reentrant the base of ventilating through glass rotameter again through the compressed air after proportional control valve adjusts to carry out the switching of high-low pressure state, the atmospheric pressure state of the interior rotor floating state feedback gas circuit of glass rotameter, the high-low pressure state of the detection personnel utilization quick, the accurate current gas circuit of judgement of the utilization naked eye of being convenient for.

Further setting: and the fastening nut is a butterfly nut.

Through adopting above-mentioned technical scheme, butterfly nut has the advantage of convenient gripping with its distinctive butterfly structure, and the testing personnel of being convenient for screws down with laborsaving fast and presses the fixed block.

In conclusion, the utility model has the following beneficial effects:

1. the high pressure and the low pressure can be quickly switched through the air pressure switching module, and the air tightness of the electromagnetic valve under different air pressure conditions is detected;

2. the fastening connection of the electromagnetic valve and the ventilation base is realized through the positioning structure, air leakage in the ventilation process of the electromagnetic valve is prevented, and the accuracy of air tightness detection is improved.

Drawings

FIG. 1 is a schematic perspective view of an apparatus for detecting airtightness of an electromagnetic valve;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic structural diagram of a detection module.

Reference numerals: 1. a work table; 2. a detection module; 21. a vent base; 22. a water tank; 23. an air inlet; 24. an air escape opening; 25. air holes; 26. a positioning structure; 261. a column; 262. a fixed block; 263. a threaded post; 264. a threaded hole; 265. a limit bolt; 266. an elastic member; 267. fastening a nut; 268. a first gasket; 269. a second gasket; 27. a coil; 3. a gas source; 4. an air pressure switching module; 41. a proportional regulating valve; 42. a glass rotameter; 43. a direct current power supply; 44. And controlling the switch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings only for the convenience of description of the present invention and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

The utility model provides a solenoid valve gas tightness check out test set, includes workstation 1, is equipped with on workstation 1 through the detection module 2 of the indirect detection solenoid valve gas tightness of solenoid valve control self gas circuit switching, and detection module 2 pipe connection has outside air supply 3, still including setting up the atmospheric pressure switching module 4 that is used for controlling 3 output pressure of air supply on workstation 1. In this embodiment, the external air source 3 of detection module 2 can select air compressor machine or other current air feeder.

Detection module 2 is including setting up ventilation base 21 and basin 22 on workstation 1, ventilation base 21 can supply the testing personnel to hold at will in this embodiment, ventilation base 21 side is equipped with the mouth 24 that loses heart of air inlet 23 and pipeline intercommunication basin 22 of pipeline intercommunication air supply 3, ventilation base 21's upper surface is equipped with a plurality of air vents 25 that are used for putting through the solenoid valve opening, every air vent 25 link up corresponding air inlet 23 or mouthful 24 that loses heart respectively, ventilation base 21 upper surface still is equipped with the location structure 26 that makes the fixed intercommunication air vent 25 of solenoid valve and is used for carrying out electric excitation's coil 27 to the solenoid valve, coil 27 is connected with external power source electricity. When the air-tightness detection device works, the through hole of the electromagnetic valve is fixedly communicated with the air hole 25 on the surface of the ventilation base 21 through the positioning structure 26, the electromagnetic valve is excited by the coil 27 to open and close, so that the air path switching in the ventilation base 21 is controlled, and a detector can indirectly judge the air tightness of the electromagnetic valve by observing whether bubbles appear in the water tank 22 through naked eyes.

The positioning structure 26 further includes an upright post 261 fixedly disposed on the upper surface of the ventilation base 21 and used for inserting and positioning an electromagnetic valve assembly hole, in this embodiment, the number of the upright posts 261 is 2, and the distance between the upright posts 261 and the electromagnetic valve assembly hole is the same, in addition, the positioning structure further includes a fixing block 262 having a through hole on the surface and a threaded post 263 fixedly disposed on the upper surface of the ventilation base 21, the diameter of the through hole of the fixing block 262 is larger than the outer diameter of the threaded post 263 and disposed in the middle of the fixing block 262, the fixing block 262 is movably sleeved on the threaded post 263 through the through hole, the lower surface of one end of the fixing block 262 is used for pressing and holding the fixed electromagnetic valve downwards, the other end of the fixing block 262 is provided with a through threaded hole 264, the lower end of the threaded hole 264 is in threaded connection with a limit bolt 265 for reversely and supporting the fixing block 262 by propping up the upper surface of the ventilation base 21 downwards, the height of the limit bolt 265 is equal to the height of the target electromagnetic valve, and further includes an elastic member 266 sleeved on the lower end of the threaded post 263 and used for elastically supporting the fixing block 262, the threaded post 263 is threadedly coupled with a fastening nut 267 through the upper end of the through hole of the fixing block 262. In this embodiment, the elastic member 266 is a spring, a first spacer 268 is disposed between the upper end of the elastic member 266 and the elastic block, a second spacer 269 is disposed between the fastening nut 267 and the fixing block 262, and the fastening nut 267 is a wing nut or other nuts convenient to hold.

During the use, fastening nut 267 is loosened earlier, make the lower surface of fixed block 262 be higher than the height of solenoid valve, later through insert the pilot hole of solenoid valve stand 261 messenger solenoid valve opening and the gas pocket 25 on ventilation base 21 surface realize preliminary butt joint, make fixed block 262 move to the solenoid valve top through radially rotating fixed block 262, and fastening nut 267 of screwing makes fixed block 262 extrude the solenoid valve downwards, when fixed block 262 descends to the lower surface laminating contact and presses and hold target solenoid valve upper surface, the lower extreme of limit bolt 265 contacts and supports the upper surface of ventilation base 21 simultaneously, thereby realize the fixed intercommunication to solenoid valve opening and ventilation base 21 surface gas pocket 25, can reverse offset the vertical ascending reaction force of ventilation in-process gas to the solenoid valve production through setting up limit bolt 265, prevent that the solenoid valve opening from breaking away from.

The air pressure switching module 4 comprises a proportional regulating valve 41 and a glass rotameter 42 which are fixedly arranged on the workbench 1, the proportional regulating valve 41, the glass rotameter 42, the air source 3 and the ventilation base 21 form a series air path, compressed air output by the air source 3 sequentially passes through the proportional regulating valve 41 and the glass rotameter 42 and finally enters the ventilation base 21 through the air inlet 23, the proportional regulating valve 41 can proportionally regulate the pressure and flow of output air flow through the size of input current, and the glass rotameter 42 feeds back the high-low pressure state in the air path through whether a glass bead rotor in the glass rotameter is floating. In addition, the device also comprises a direct current power supply 43 for driving the proportional control valve 41 to work, at least 2 groups of resistors with different values and connected in parallel are also connected in series in a closed electric loop formed by electrically connecting the proportional control valve 41 and the direct current power supply 43, and a control switch 44 for controlling the opening and closing is also connected in series in each parallel electric loop formed by the resistors.

During operation, the fixed switch-on base 21 of ventilating of solenoid valve, resistance size in the closed circuit is adjusted through the condition of opening and shutting that changes control switch 44 in each parallel circuit afterwards, and then change the input current of proportional control valve 41, thereby realize fast that the high low atmospheric pressure to the target detection solenoid valve switches, the high low pressure state in the rotor floating state quick accurate judgement gas circuit of detection personnel accessible visual observation glass rotameter 42, when the rotor floats, the gas circuit is in high pressure state, when the rotor sinks, the gas circuit is in low pressure state. In addition, in this embodiment, a sliding rheostat can be used to replace the resistors in different parallel circuits to satisfy the switching of different numerical air pressure states.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims

1. The utility model provides an electromagnetic valve gas tightness check out test set which characterized in that: including air supply (3) and intercommunication air supply (3) and through detection module (2) of the indirect detection solenoid valve gas tightness of gaseous business turn over of solenoid valve control, detection module (2) are including ventilating base (21), it is equipped with air inlet (23) and disappointing mouth (24) to ventilate base (21) side, ventilates base (21) upper surface and still is equipped with air pocket (25) that correspond intercommunication air inlet (23) or lose heart (24), air pocket (25) are used for the through-hole of switch-on solenoid valve, ventilate base (21) upper surface and still are equipped with location structure (26) that are used for the fixed dress to block the solenoid valve and carry out electric excitation coil (27) to the solenoid valve, still include atmospheric pressure switching module (4) that change air supply (3) output pressure through adjusting voltage.

2. Electromagnetic valve tightness detection device according to claim 1, characterized in that: atmospheric pressure switches module (4) and includes proportional control valve (41) and electricity and connects direct current power supply (43) of proportional control valve (41), proportional control valve (41) pipeline intercommunication air inlet (23) and air supply (3) respectively, the closed circuit that proportional control valve (41) and direct current power supply (43) are constituteed is in series connected at least 2 groups and two sets of more than numerical value difference and parallelly connected resistance each other, still is equipped with in the parallel circuit that every resistance constitutes and is used for control resistance access control switch (44).

3. The electromagnetic valve airtightness detection apparatus according to claim 1 or 2, characterized in that: location structure (26) include and carry out stand (261) fixed to the solenoid valve through grafting solenoid valve mounting hole, stand (261) quantity is 2, sets up perpendicularly at ventilation base (21) upper surface, ventilation base (21) upper surface still is equipped with screw thread post (263), swing joint has fixed block (262) on screw thread post (263), fixed block (262) surface is equipped with the through-hole that the diameter is greater than screw thread post (263), fixed block (262) establish on screw thread post (263) through the through-hole activity cover, screw thread post (263) lower extreme is equipped with elastic component (266) that are used for supporting fixed block (262), screw thread post (263) pass the upper end of fixed block (262) and are equipped with fastening nut (267) that are used for screwing and push down fixed block (262).

4. The electromagnetic valve airtightness detection apparatus according to claim 3, wherein: the surface of the fixing block (262) is further provided with a threaded hole (264), the threaded hole (264) is in threaded connection with a limiting bolt (265) which supports the fixing block (262) reversely by jacking the ventilating base (21) downwards, and the height of the limiting bolt (265) is equal to that of the target detection electromagnetic valve.

5. The electromagnetic valve airtightness detection apparatus according to claim 3, characterized in that: the joint of the elastic piece (266) and the fixed block (262) is provided with a first gasket (268), and the joint of the fixed block (262) and the fastening nut (267) is provided with a second gasket (269).

6. The electromagnetic valve airtightness detection apparatus according to claim 3, wherein: the air pressure switching module (4) further comprises a glass rotameter (42) used for feeding back the output pressure of the air source (3), and the air source (3) is sequentially communicated with the proportional regulating valve (41), the glass rotameter (42) and the air inlet (23) of the ventilation base (21).

7. The electromagnetic valve airtightness detection apparatus according to claim 3, wherein: the fastening nut (267) is a butterfly nut.