CN113884249B - Air tightness detection device for electromagnetic valve for air pump - Google Patents
Air tightness detection device for electromagnetic valve for air pump Download PDFInfo
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- CN113884249B CN113884249B CN202111139646.4A CN202111139646A CN113884249B CN 113884249 B CN113884249 B CN 113884249B CN 202111139646 A CN202111139646 A CN 202111139646A CN 113884249 B CN113884249 B CN 113884249B
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- clamping
- electromagnetic valve
- gear
- detection
- air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/086—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Abstract
The invention discloses an air tightness detection device of an electromagnetic valve for an air pump, wherein the electromagnetic valve at least comprises a rod-shaped rod part and a valve body formed at the lower end of the rod part, the lower end of the valve body is provided with an air inlet nozzle, and air outlets are densely distributed on the circumferential direction of the side surface of the valve body. The detection device includes the detection bench, still includes: the detection pool is arranged below the detection rack and used for detecting the air tightness of the electromagnetic valve; the clamping device is used for clamping the electromagnetic valve; and the propelling device is arranged at the upper end of the detection rack and used for fixing and propelling the clamping device to be downwards inserted into the detection pool.
Description
Technical Field
The application relates to the technical field of machinery, in particular to an air tightness detection device for an electromagnetic valve for an air pump.
Background
The use of solenoid valves is indispensable in air pumps. The gas passage of the solenoid valve needs to be subjected to a leak tightness test before shipment from a factory. The sealing performance testing apparatus for the solenoid valve of the prior art generally includes a clamping mechanism for clamping the solenoid valve, the clamping mechanism connecting the solenoid valve into a gas passage, and a liquid cover. Whether the air passage of the electromagnetic valve is deflated is judged by judging whether air bubbles exist in the liquid.
However, the clamping device of the solenoid valve detecting device in the prior art is single, and the technical essence is that the end of the solenoid valve is directly inserted into the gap of the clamping device, the fixing manner is not firm, the position of the solenoid valve is easy to shift or even fall off, and the solenoid valve cannot be accurately inserted into the detecting device.
Disclosure of Invention
To the condition of the prior art, the utility model discloses the technical scheme who adopts does:
the utility model provides an air pump is with solenoid valve gas tightness detection device, the solenoid valve includes at least that be rod-shaped pole portion, the valve body of shaping in pole portion lower extreme, the valve body lower extreme is equipped with the suction nozzle and the side circumference is densely covered with the gas outlet.
The detection device includes the detection bench, still includes:
the detection pool is arranged below the detection rack and used for detecting the air tightness of the electromagnetic valve;
the clamping device is used for clamping the electromagnetic valve;
and the propelling device is arranged at the upper end of the detection rack and used for fixing and propelling the clamping device to be downwards inserted into the detection pool.
As to the detection cell, the following are further embodiments:
the detection tank comprises a detection tank body with an opening at the upper end and positive pressure clamps which are distributed on the lower end surface of the detection tank body at equal intervals;
malleation anchor clamps include the anchor clamps base member, still including the shaping hold the side opening of giving vent to anger, the shaping in holding and establishing recess lower extreme and with the sealed complex intake duct of suction nozzle that is establishing recess inner wall for holding establish the valve body in the anchor clamps base member, circumference equipartition, intake duct lower extreme the place ahead is equipped with the input pipeline that is used for connecting the positive pressure air supply.
As regards the clamping device, the following are further embodiments:
clamping device is including overhead base plate, equidistant distribution below overhead base plate be used for the arm lock assembly of centre gripping solenoid valve, arm lock assembly with malleation anchor clamps one-to-one, clamping device still includes the regulation horizontal pole that runs through each arm lock assembly along left right direction.
The clamp arm assembly is used for clamping and fixing the electromagnetic valve, and the following are taken as further embodiments:
the arm lock assembly includes:
a clamp arm base;
the circular clamping channel is arranged at the lower end of the clamping arm base body and used for inserting the electromagnetic valve;
the rectangular slideway is arranged above the circular clamping channel;
the chain wheel cavity is arranged on the right side of the rectangular slideway;
the transmission chain wheel is arranged in the chain wheel cavity and comprises a chain wheel middle shaft arranged along the front-back direction, a rear gear rotatably arranged on the chain wheel middle shaft and a front gear arranged in front of the rear gear;
the clamping assembly is arranged below the clamping arm base body and is driven by the front gear to perform the action of clamping the electromagnetic valve;
the adjusting cross rod comprises a driving rack which sequentially penetrates through the chain wheel chambers and is in transmission connection with the rear gear, and a hand-pinching end which is formed on the left side of the driving rack.
The clamping assembly is:
the clamping assembly comprises a clamping circular cavity arranged at the lower half part of the circular clamping channel, an isolation ring formed in the middle of the clamping circular cavity, and radial sliding chutes uniformly distributed on the inner side of the isolation ring in the circumferential direction;
the clamping assembly further comprises radial inserted rods which are uniformly distributed in the circumferential direction in the clamping circular cavity, are positioned below the isolation circular ring and correspond to the radial sliding grooves one to one, sliding jackets which are sleeved on the radial inserted rods in a sliding mode, and threaded inserted rods which are formed above the sliding jackets and penetrate through the radial sliding grooves;
the clamping assembly further comprises a plane thread ring which is rotatably arranged above the isolation ring in the clamping circular cavity, a plane thread is formed on the lower end face of the plane thread ring, and the upper end of the thread insert rod is in threaded connection with the plane thread ring;
the clamping assembly further comprises a planetary wheel shaft which is uniformly distributed on the upper end surface of the plane thread ring in the circumferential direction, a planetary gear which is rotatably arranged on the planetary wheel shaft, and an outer ring gear which is fixedly arranged on the upper end of the inner wall of the clamping circular cavity and is engaged with the planetary gear;
the clamping assembly further comprises a limiting ring groove formed in the upper half part of the circular clamping channel, a driven rotary drum rotatably arranged in the upper half part of the circular clamping channel, a limiting convex ring formed on the outer wall of the driven rotary drum and in rotating fit with the limiting ring groove, a sun gear formed at the lower end of the outer wall of the driven rotary drum and in rotating fit with the planetary gear, and a spiral slideway formed on the inner wall of the driven rotary drum;
the clamping assembly further comprises a longitudinal moving round rod inserted in the driven rotary drum, a driving plug formed on the outer wall of the longitudinal moving round rod and matched with the spiral slideway in an inserting mode, and a driven rack formed at the upper end of the longitudinal moving round rod and inserted in the rectangular slideway, and the driven rack is in transmission connection with the rear gear.
As a further embodiment:
the lower end of the circular clamping channel is provided with a clamping channel opening with a wide lower part and a narrow upper part.
As a further embodiment:
and an annular clamping plug is also arranged at the lower end of the circular clamping channel above the opening of the clamping channel.
The annular clamping plug preliminarily clamps the rod part of the electromagnetic valve through extrusion stress.
Has the advantages that:
the air tightness detection device for the electromagnetic valve for the air pump provided by the invention has the advantages that the electromagnetic valve is tightly clamped and fixed through the clamping device, the operation is simple, and the clamping is firm:
regarding the operation simplicity:
the electromagnetic valve is pushed upwards, so that the longitudinal moving round rod can be driven to move upwards, and the contraction clamping of the clamping assembly is further realized;
regarding the clamping firmness:
the clamping action of the clamping assembly is realized through the radial contraction of the sliding clamping sleeve, and the sliding clamping sleeve provides stable extrusion stress and friction force for the rod part of the electromagnetic valve to firmly clamp the electromagnetic valve.
The plane thread ring has a self-locking effect on the driving action of the thread inserted rod, namely, the radial movement of the thread inserted rod can be driven only by the involute plane thread rotation on the plane thread ring, and the reverse transmission cannot be realized. Therefore, the positions of the threaded inserted rod and the radial jacket can be kept stable after being adjusted. Even if the electromagnetic valve is subjected to upward extrusion stress in the process of being inserted into the detection cell, the rod part of the electromagnetic valve has slight upward movement, and the clamping assembly can only be clamped more tightly.
According to the air tightness detection device for the electromagnetic valve for the air pump, the electromagnetic valve is simple and efficient in detachment process from the clamping device:
all clamping arm assemblies can be adjusted through the driving rack by controlling the adjusting cross rod, so that the corresponding electromagnetic valves are loosened by the clamping assemblies, and the releasing process is efficient.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic view of one embodiment of the detection device.
Fig. 2 is a schematic view of another embodiment of the detection device.
FIG. 3 is a schematic diagram of one embodiment of the detection cell.
FIG. 4 is a cross-sectional view of one embodiment of the clamping device.
Figure 5 is a cross-sectional view of one embodiment of the clamp arm assembly.
Figure 6 is a cross-sectional view of another embodiment of the clamp arm assembly.
Fig. 7 is an enlarged schematic view of a portion a of fig. 5.
Fig. 8 is an enlarged schematic view of part B of fig. 6.
FIG. 9 is a cross-sectional view of one embodiment of the solenoid valve.
FIG. 10 is a cross-sectional view of another embodiment of the solenoid valve.
FIG. 11 is a cross-sectional view of one embodiment of a prior art solenoid clamping device.
Icon:
a. the valve comprises a rod part, a valve body, a gas inlet nozzle and a gas outlet;
1. a detection bench;
2. a detection cell;
21. detecting the pool body;
22. a positive pressure clamp, 221, a positive pressure matrix, 222, a containing groove, 223, an air outlet side hole, 224, an air inlet and 225, an input pipeline;
3. a clamping device;
31. disposing a substrate;
32. the clamping arm assembly comprises a clamping arm assembly, 321, a clamping arm base body, 322, a circular clamping channel, 322b, a clamping channel opening, 322b, an annular clamping plug, 323, a rectangular slide way, 324, a chain wheel chamber, 325, a transmission chain wheel, 325a chain wheel middle shaft, 325b, a rear gear and 325c, a front gear; 326. a clamping assembly, 326a, a clamping circular cavity, 326b, an isolating circular ring, 326c, a radial sliding chute, 326d, a radial inserted link, 326e, a sliding jacket, 326f, a threaded inserted link, 326g, a planar threaded ring, 326h, a planet wheel shaft, 326i, a planet gear, 326j, an outer ring gear, 326k, a limit ring groove, 326l, a driven rotary drum, 326m, a limit convex ring, 326n, a sun gear, 326o, a spiral slideway, 326p, a longitudinal moving circular rod, 326q, a driving plug, 326r and a driven rack;
33. the adjusting cross rod 331 drives the rack, 332 holds the end head by hand;
4. a propulsion device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
The electromagnetic valve at least comprises a rod part a in a rod shape and a valve body b formed at the lower end of the rod part a, wherein the lower end of the valve body b is provided with an air inlet nozzle c, and air outlets d are densely distributed in the circumferential direction of the side surface of the valve body b.
The detection device comprises a detection rack 1 and also comprises:
the detection pool 2 is arranged below the detection rack 1 and used for detecting the air tightness of the electromagnetic valve;
a holding device 3 for holding the solenoid valve;
and the propelling device 4 is arranged at the upper end of the detection rack 1 and used for fixing and propelling the clamping device 3 to be downwards inserted into the detection pool 2.
With respect to the detection cell 2, the following are further embodiments:
the detection tank 2 comprises a detection tank body 21 with an opening at the upper end and positive pressure clamps 22 distributed on the lower end face of the detection tank body 21 at equal intervals;
malleation anchor clamps 22 includes anchor clamps base member 221, still includes the shaping and establishes recess 222, circumference equipartition in anchor clamps base member 221 for holding the appearance of establishing valve body b, holds the side opening 223 of giving vent to anger of establishing recess 222 inner wall, shaping in holding and establishing recess 222 lower extreme and with the sealed complex intake duct 224 of suction nozzle c, intake duct 224 lower extreme the place ahead is equipped with the input pipeline 225 that is used for connecting the positive pressure air supply.
As regards the gripping device 3, the following are further embodiments:
clamping device 3 includes overhead base plate 31, equidistant distribution at the overhead base plate 31 below be used for centre gripping solenoid valve's arm lock assembly 32, arm lock assembly 32 with malleation anchor clamps 22 one-to-one, clamping device 3 still includes the regulation horizontal pole 33 that runs through each arm lock assembly 32 along the left and right directions.
The clamping arm assembly 32 is used for clamping and fixing the solenoid valve, and the following are taken as further embodiments:
the clamp arm assembly 32 includes:
a clamp arm base 321;
a circular clamping channel 322, provided at the lower end of the clamping arm base 321, for inserting an electromagnetic valve;
the rectangular slide rail 323 is arranged above the circular clamping rail 322;
a sprocket chamber 324 provided on the right side of the rectangular slide 323;
the transmission chain wheel 325 is arranged in the chain wheel cavity 324 and comprises a chain wheel middle shaft 325a arranged along the front-back direction, a rear gear 325b arranged on the chain wheel middle shaft 325a in a rotatable manner, and a front gear 325c arranged in front of the rear gear 325 b;
a clamping assembly 326 disposed below the clamping arm base 321, wherein the clamping assembly 326 is driven by the front gear 325c to perform the action of clamping the solenoid valve;
the adjusting cross bar 33 comprises a driving rack 331 which penetrates through each chain wheel chamber 324 in sequence and is in transmission connection with a rear gear 325b, and a hand-pinching tip 332 formed at the left side of the driving rack 33 a.
The clamping assembly 326:
the clamping assembly 326 comprises a clamping circular cavity 326a arranged at the lower half part of the circular clamping channel 322, an isolation ring 326b formed in the middle of the clamping circular cavity 326a, and radial sliding grooves 326c uniformly distributed on the inner side of the isolation ring 326b in the circumferential direction;
the clamping assembly 326 further includes radial insertion rods 326d circumferentially and uniformly distributed in the clamping circular cavity 326a below the isolation circular ring 326b and corresponding to the radial sliding grooves 326c one by one, a sliding jacket 326e slidably sleeved on the radial insertion rods 326d, and threaded insertion rods 326f formed above the sliding jacket 326e and penetrating the radial sliding grooves 326c;
the clamping assembly 326 further comprises a plane thread ring 326g rotatably arranged above the isolating ring 326b in the clamping circular cavity 326a, a plane thread is formed on the lower end surface of the plane thread ring 326g, and the upper end of the thread insert rod 32f is in threaded connection with the plane thread ring 326 g;
the clamping assembly 326 further comprises a planetary wheel shaft 326h uniformly distributed on the upper end surface of the plane thread ring 326g in the circumferential direction, a planetary gear 326i rotatably arranged on the planetary wheel shaft 326h, and an outer ring gear 326j fixedly arranged on the upper end of the inner wall of the clamping circular cavity 326a and engaged with the planetary gear 326 i;
the clamping assembly 326 further comprises a limit ring groove 326k formed in the upper half part of the circular clamping channel 322, a driven drum 326l rotatably arranged in the upper half part of the circular clamping channel 322, a limit convex ring 326m formed on the outer wall of the driven drum 326l and rotationally matched with the limit ring groove 326k, a sun gear 326n formed at the lower end of the outer wall of the driven drum 326l and rotationally matched with the planet gear 326i, and a spiral slideway 326o formed on the inner wall of the driven drum 326 l;
the clamping assembly 326 further comprises a longitudinally-moving round rod 326p inserted into the driven rotary drum 326l, a driving plug 326q formed on the outer wall of the longitudinally-moving round rod 326p and matched with the spiral slideway 326o in an inserting manner, and a driven rack 326r formed at the upper end of the longitudinally-moving round rod 326p and inserted into the rectangular slideway 323, wherein the driven rack 326r is in transmission connection with the rear gear 325b.
The rectangular cross section of the rectangular slide 323 restricts the driven rack 326r, so that the driven rack 326r, the longitudinal moving rod 326p and the driving plug 326q have only a freedom of longitudinal movement and no rotational freedom.
As a further embodiment:
the lower end of the circular clipping channel 322 is provided with a clipping channel opening 322b with a wide lower part and a narrow upper part.
Thanks to the above improved embodiment, the clamping channel opening 322b has a guiding function, and the clamping channel opening 322b can guide the rod part a of the solenoid valve to smoothly slide into the circular clamping channel 322 through the tapered outer wall of the clamping channel opening 322b even if the rod part a of the solenoid valve is not completely aligned with the clamping channel opening 322b when the rod part a of the solenoid valve is inserted upwards.
As a further embodiment:
an annular clamping plug 322b is also arranged at the lower end of the circular clamping channel 322 above the clamping channel opening 322b.
Further, the annular clamping plug 322b is made of a soft material.
Still further, the inner diameter of the annular clamping plug 322b is slightly smaller than the rod part a of the solenoid valve.
Thanks to the above improved technical solution, the rod portion a of the solenoid valve is initially inserted into the annular clamping plug 322b to provide a certain clamping force.
The specific detection method comprises the following steps:
step 1, fixing the electromagnetic valve:
the solenoid valve is inserted into the circular clamping channel 322 with the rod part a in an upward posture and pushed upwards, and the clamping assembly 326 is driven to realize the clamping action:
the rod part a drives the longitudinal moving round rod 326p, the driving plug 326q and the driven rack 326r to move upwards, and the driven rack 326r drives the front gear 325b and the rear gear 325c to rotate positively;
the driving plug 326q acts on the spiral slideway 326o to drive the driven rotary drum 326l, the limiting convex ring 326m and the sun gear 326n to rotate in the positive direction;
the sun gear 326n drives the planetary gear 326i to revolve along the outer ring gear 326j while rotating, and further drives the planetary gear shaft 326h and the plane thread ring 326g to rotate in the positive direction;
the planar threaded ring 326g rotates to drive the threaded bayonet 326f and the sliding collet 326e to slide inward along the radial bayonet 326 d;
the sliding jacket 326e clamps the rod part a of the solenoid valve;
repeating the step 1, placing and clamping the electromagnetic valve in each clamping assembly 326;
the pushing device pushes the clamping device 3 to move downwards;
each clamping assembly 326 and the solenoid valve held thereby descend with it, the valve body b of the solenoid valve being inserted into the inlet 224 of the corresponding positive pressure clamp 22;
the input pipeline 225 is connected with a positive pressure gas source and conveys positive pressure gas into the gas inlet channel 224, and the gas enters the gas inlet nozzle c, so that the gas tightness of the electromagnetic valve is judged;
when the valve core e normally seals the air inlet nozzle c, the gas cannot overflow through the air outlet hole d and further cannot overflow from the air outlet hole 223 of the positive pressure clamp 2, and the overflow gas cannot enter the liquid in the detection tank body 21 to form bubbles;
when the valve core e cannot seal the air inlet nozzle c, the air overflows through the air hole d and overflows through the air outlet side hole 223 of the positive pressure clamp 2, and the overflowed air enters the liquid in the detection cell body 21 to form bubbles;
the pushing device pulls the clamping device 3 to move upwards;
the electromagnetic valve is driven to move upwards and is separated from the contact with the detection pool 2;
pulling the hand-pinching end 332 and the driving rack 331;
the driving rack 331 drives the rear gear 325c and the front gear 325b to rotate reversely;
the front gear 325b drives the driven rack 326r, the longitudinal moving round rod 326p and the driving plug 326q to move downwards;
the driving plug 326q acts on the spiral slideway 326o to drive the driven rotary drum 326l, the limiting convex ring 326m and the sun gear 326n to rotate reversely;
the sun gear 326n drives the planetary gear 326i to revolve along the outer ring gear 326j while rotating, and further drives the planetary gear shaft 326h and the plane thread ring 326g to rotate reversely;
the plane thread ring 326g rotates to drive the thread inserted rod 326f and the sliding jacket 326e slides outwards along the radial inserted rod 326 d;
the sliding jacket 326e releases the rod part a of the solenoid valve;
and (4) repeating the step 4, and detaching each electromagnetic valve from the clamping device 3.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. The utility model provides an air pump is with solenoid valve gas tightness detection device, the solenoid valve is at least including being shaft-like pole portion (a), valve body (b) of shaping in pole portion (a) lower extreme, valve body (b) lower extreme is equipped with suction nozzle (c) and side circumference is densely covered has gas outlet (d), be equipped with case (e) of sealed suction nozzle (c) under the normality in valve body (b), its characterized in that:
including detecting rack (1), still include:
the detection pool (2) is arranged below the detection rack (1) and used for detecting the air tightness of the electromagnetic valve;
a clamping device (3) for clamping the solenoid valve;
the propelling device (4) is arranged at the upper end of the detection rack (1) and used for fixing and propelling the clamping device (3) to be downwards inserted into the detection pool (2);
the detection tank (2) comprises a detection tank body (21) with an opening at the upper end and positive pressure clamps (22) distributed at equal intervals on the lower end surface of the detection tank body (21);
the positive pressure clamp (22) comprises a clamp base body (221), and further comprises an accommodating groove (222) which is formed in the clamp base body (221) and used for accommodating a valve body (b), air outlet side holes (223) which are circumferentially and uniformly distributed on the inner wall of the accommodating groove (222), and an air inlet channel (224) which is formed at the lower end of the accommodating groove (222) and is in sealing fit with an air inlet nozzle (c), wherein an input pipeline (225) used for connecting a positive pressure air source is arranged in front of the lower end of the air inlet channel (224);
clamping device (3) are including overhead base plate (31), equidistant distribution at overhead base plate (31) below be used for centre gripping solenoid valve's arm lock assembly (32), arm lock assembly (32) with malleation anchor clamps (22) one-to-one, clamping device (3) still include along the regulation horizontal pole (33) that left right direction runs through each arm lock assembly (32).
2. The apparatus of claim 1, wherein the air tightness detecting device comprises:
the clamp arm assembly (32) includes:
a clamp arm base (321);
the circular clamping channel (322) is arranged at the lower end of the clamping arm base body (321) and is used for inserting the electromagnetic valve;
the rectangular slide way (323) is arranged above the circular clamping way (322);
a sprocket chamber (324) disposed on the right side of the rectangular slide (323);
the transmission chain wheel (325) is arranged in the chain wheel chamber (324) and comprises a chain wheel middle shaft (325 a) arranged along the front-back direction, a rear gear (325 b) rotatably arranged on the chain wheel middle shaft (325 a) and a front gear (325 c) arranged in front of the rear gear (325 b);
the clamping assembly (326) is arranged below the clamping arm base body (321), and the clamping assembly (326) is driven by the front gear (325 c) to perform the action of clamping the electromagnetic valve;
the adjusting cross rod (33) comprises a driving rack (331) which sequentially penetrates through each chain wheel chamber (324) and is in transmission connection with the rear gear (325 b), and a hand-pinching end (332) formed on the left side of the driving rack (33 a).
3. The airtightness detection apparatus for the electromagnetic valve for the air pump according to claim 2, wherein:
the clamping assembly (326) comprises a clamping circular cavity (326 a) arranged at the lower half part of the circular clamping channel (322), an isolation ring (326 b) formed in the middle of the clamping circular cavity (326 a), and radial sliding grooves (326 c) uniformly distributed on the inner side of the isolation ring (326 b) in the circumferential direction;
the clamping assembly (326) further comprises radial inserted rods (326 d) which are circumferentially uniformly distributed in a clamping circular cavity (326 a) and located below the isolating circular ring (326 b) and correspond to the radial sliding grooves (326 c) one by one, a sliding jacket (326 e) which is slidably sleeved on the radial inserted rods (326 d), and threaded inserted rods (326 f) which are formed above the sliding jacket (326 e) and penetrate through the radial sliding grooves (326 c);
the clamping assembly (326) further comprises a plane thread ring (326 g) which is rotatably arranged above the isolating circular ring (326 b) in the clamping circular cavity (326 a), a plane thread is formed on the lower end face of the plane thread ring (326 g), and the upper end of the thread insert rod (32 f) is in threaded connection with the plane thread ring (326 g);
the clamping assembly (326) further comprises a planetary wheel shaft (326 h) which is uniformly distributed on the upper end surface of the plane thread ring (326 g) in the circumferential direction, a planetary gear (326 i) which is rotatably arranged on the planetary wheel shaft (326 h), and an outer ring gear (326 j) which is fixedly arranged on the upper end of the inner wall of the clamping circular cavity (326 a) and is meshed with the planetary gear (326 i);
the clamping assembly (326) further comprises a limiting ring groove (326 k) formed in the upper half part of the circular clamping channel (322), a driven rotary drum (326 l) rotatably arranged on the upper half part of the circular clamping channel (322), a limiting convex ring (326 m) formed on the outer wall of the driven rotary drum (326 l) and rotationally matched with the limiting ring groove (326 k), a sun gear (326 n) formed at the lower end of the outer wall of the driven rotary drum (326 l) and rotationally matched with the planetary gear (326 i), and a spiral slideway (326 o) formed on the inner wall of the driven rotary drum (326 l);
the clamping assembly (326) further comprises a longitudinal moving round rod (326 p) inserted into the driven rotary drum (326 l), a driving plug (326 q) formed on the outer wall of the longitudinal moving round rod (326 p) and matched with the spiral slideway (326 o) in an inserting mode, and a driven rack (326 r) formed at the upper end of the longitudinal moving round rod (326 p) and inserted into the rectangular slideway (323), wherein the driven rack (326 r) is in transmission connection with the rear gear (325 b).
4. The airtightness detection apparatus for the electromagnetic valve for the air pump according to claim 3, wherein:
the lower end of the circular clamping channel (322) is provided with a clamping channel opening (322 b) which is wide at the bottom and narrow at the top.
5. The apparatus of claim 4, wherein the air tightness detecting device comprises:
the lower end of the circular clamping channel (322) is also provided with an annular clamping plug (322 b) above the clamping channel opening (322 b).
6. An electromagnetic valve inspection method using the air tightness inspection device for an electromagnetic valve for an air pump according to claim 5, characterized in that:
the method comprises the following steps:
step 1, fixing the electromagnetic valve:
the electromagnetic valve is inserted into the circular clamping channel (322) in a state that the rod part (a) is upward and pushed upwards, and a clamping assembly (326) is driven to realize clamping action:
the rod part (a) drives the longitudinal moving round rod (326 p), the driving plug (326 q) and the driven rack (326 r) to move upwards, and the driven rack (326 r) drives the front gear (325 b) and the rear gear (325 c) to rotate positively;
the driving plug (326 q) acts on the spiral slideway (326 o) to drive the driven rotary drum (326 l), the limiting convex ring (326 m) and the sun gear (326 n) to rotate in the positive direction;
the sun gear (326 n) drives the planetary gear (326 i) to rotate on one side and revolve along the outer ring gear (326 j), so that the planetary gear shaft (326 h) and the plane thread ring (326 g) are driven to rotate in the positive direction;
the plane thread ring (326 g) rotates to drive the thread inserted rod (326 f) and the sliding jacket (326 e) to slide inwards along the radial inserted rod (326 d);
the sliding jacket (326 e) clamps the rod part (a) of the solenoid valve;
repeating the step 1, and placing and clamping the electromagnetic valve in each clamping assembly (326);
step 2, detection by the detection pool (2):
the propelling device pushes the clamping device (3) to descend;
each clamping assembly (326) and the electromagnetic valve clamped by the clamping assembly descend along with the clamping assembly, and a valve body (b) of the electromagnetic valve is inserted into the air inlet channel (224) of the corresponding positive pressure clamp (22);
the input pipeline (225) is connected with a positive pressure gas source and conveys positive pressure gas into the gas inlet channel (224), and the gas enters the gas inlet nozzle (c) so as to judge the gas tightness of the electromagnetic valve;
when the valve core (e) normally seals the air inlet nozzle (c), air cannot overflow through the air outlet hole (d) and further cannot overflow from the air outlet side hole (223) of the positive pressure clamp (2), and the overflow air cannot enter liquid in the detection tank body (21) to form bubbles;
when the valve core (e) can not seal the air inlet nozzle (c), the gas overflows through the air hole (d) and overflows through the air outlet side hole (223) of the positive pressure clamp (2), and the overflowed gas enters the liquid in the detection cell body (21) to form bubbles;
step 3, separating from the detection pool (2):
the pushing device pulls the clamping device (3) to move upwards;
the electromagnetic valve is driven to move upwards and is separated from the contact with the detection pool (2);
step 4, disassembling the electromagnetic valve:
the hand-pinching end (332) and the driving rack (331) are pulled;
the driving rack (331) drives the rear gear (325 c) and the front gear (325 b) to rotate reversely;
the front gear (325 b) drives the driven rack (326 r), the longitudinal moving round rod (326 p) and the driving plug (326 q) to move downwards;
the driving plug (326 q) acts on the spiral slideway (326 o) to drive the driven rotary drum (326 l), the limiting convex ring (326 m) and the sun gear (326 n) to rotate reversely;
the sun gear (326 n) drives one side of the planetary gear (326 i) to rotate and revolve along the outer ring gear (326 j), and further drives the planetary gear shaft (326 h) and the plane thread ring (326 g) to rotate reversely;
the plane thread ring (326 g) rotates to drive the thread inserted rod (326 f) and the sliding jacket (326 e) to slide outwards along the radial inserted rod (326 d);
the sliding jacket (326 e) releases the rod part (a) of the solenoid valve;
and (5) repeating the step (4) to detach each electromagnetic valve from the clamping device (3).
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| CN202111139646.4A CN113884249B (en) | 2021-09-28 | 2021-09-28 | Air tightness detection device for electromagnetic valve for air pump |
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| CN113884249B true CN113884249B (en) | 2022-12-23 |
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| CN117347041B (en) * | 2023-12-04 | 2024-02-02 | 济宁落陵春辉机械制造有限公司 | Pilot valve four-channel testing device for gas-liquid pressurization |
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| CN102128707A (en) * | 2010-12-30 | 2011-07-20 | 无锡鹰贝精密轴承有限公司 | Valve element airtightness testing device |
| CN204666314U (en) * | 2015-05-27 | 2015-09-23 | 南京都乐制冷设备有限公司 | For the valve member leakage detection apparatus of refrigeration industry |
| CN208012818U (en) * | 2018-03-19 | 2018-10-26 | 迈克医疗电子有限公司 | Detection apparatus for electromagnetic valve |
| CN210719562U (en) * | 2019-11-11 | 2020-06-09 | 瑞安市翔锐汽车电器有限公司 | Leak detection device for electromagnetic valve production |
| CN112304771A (en) * | 2020-09-11 | 2021-02-02 | 山东泰展机电科技股份有限公司 | Air pump electromagnetic valve core sorting system and working method thereof |
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- 2021-09-28 CN CN202111139646.4A patent/CN113884249B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128707A (en) * | 2010-12-30 | 2011-07-20 | 无锡鹰贝精密轴承有限公司 | Valve element airtightness testing device |
| CN204666314U (en) * | 2015-05-27 | 2015-09-23 | 南京都乐制冷设备有限公司 | For the valve member leakage detection apparatus of refrigeration industry |
| CN208012818U (en) * | 2018-03-19 | 2018-10-26 | 迈克医疗电子有限公司 | Detection apparatus for electromagnetic valve |
| CN210719562U (en) * | 2019-11-11 | 2020-06-09 | 瑞安市翔锐汽车电器有限公司 | Leak detection device for electromagnetic valve production |
| CN112304771A (en) * | 2020-09-11 | 2021-02-02 | 山东泰展机电科技股份有限公司 | Air pump electromagnetic valve core sorting system and working method thereof |
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