CN217542275U - Pneumatic valve testing machine - Google Patents

Abstract

The utility model relates to the technical field of air tightness test equipment, in particular to an air pressure valve testing machine; the operation is simple, the waste of water resources is reduced, and the detection efficiency of the valve is improved; the device comprises a test bed, a placing seat, two groups of first feeding seats, a second feeding seat and a bubble liquid supply mechanism, wherein the placing seat is fixedly installed in the middle of the test bed, the two groups of first feeding seats can be installed on the test bed in a left-right sliding mode, a driving mechanism for providing power for the movement of the first feeding seats is installed on the test bed, the driving mechanism comprises a threaded lead screw and a driving motor, the left part and the right part of the threaded lead screw are reversely buckled, the two groups of first feeding seats are in transmission connection with the left part and the right part of the threaded lead screw respectively, the driving motor is fixedly installed on the test bed, the output end of the driving motor is fixedly connected with the threaded lead screw, and sealing plugs are installed on the two groups of first feeding seats; the second feeding seat can be arranged on the test bed in a vertically sliding mode.

Description

Pneumatic valve testing machine

Technical Field

The utility model relates to a technical field of gas tightness test equipment especially relates to a pneumatic valve testing machine.

Background

As is well known, a pneumatic valve tester is a device for testing the airtightness of a valve; the existing air pressure valve testing machine mostly adopts a water immersion type air pressure detection device; when the existing air pressure valve testing machine is used, the end parts of the two ends of the valve are communicated with a pressure air source, the valve is immersed in water for air pressure pressurization, and whether bubbles are generated or not is observed, so that the air tightness of the valve is detected; present air pressure valve testing machine is used the discovery, carries out the gas tightness through the mode of soaking to the valve and detects, and the operation is comparatively inconvenient, and the water resource is wasted, influences the gas tightness detection efficiency of valve, has certain use limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an easy operation reduces water wasting of resources, improves valve detection efficiency's pneumatic valve testing machine.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the device comprises a test bed, a placing seat, two groups of first feeding seats, a second feeding seat and a bubble liquid supply mechanism, wherein the placing seat is fixedly arranged in the middle of the test bed, the two groups of first feeding seats can be arranged on the test bed in a left-right sliding manner, a driving mechanism for providing power for the movement of the first feeding seats is arranged on the test bed, the driving mechanism comprises a threaded lead screw and a driving motor, the left part and the right part of the threaded lead screw are reversely buckled, the two groups of first feeding seats are respectively in transmission connection with the left part and the right part of the threaded lead screw, the driving motor is fixedly arranged on the test bed, the output end of the driving motor is fixedly connected with the threaded lead screw, and sealing plugs are arranged on the two groups of first feeding seats; the second feeding seat is mounted on the test bed in a vertically sliding mode, a driving cylinder for providing power for the second feeding seat to move up and down is mounted on the test bed, and a limiting sleeve is mounted at the bottom of the second feeding seat;

the bubble liquid supplies liquid mechanism includes box, force (forcing) pump and three annular spray tubes of group, and three annular spray tubes of group are installed respectively on two sets of sealing plugs and stop collar, the input of force (forcing) pump stretches into to the box in, the input of three annular spray tubes of group all communicates with the output of force (forcing) pump.

Preferably, the air pump and the air supply pipe are further included, an output end of the air pump is communicated with the air supply pipe, an output end of the air supply pipe penetrates through one group of sealing plugs, and the air supply pipe is provided with a first switch valve.

Preferably, still include back the liquid pipe, be provided with the collecting tank on the test bench, the input and the collecting tank intercommunication of returning the liquid pipe, the output that returns the liquid pipe stretches into to the box in.

Preferably, the gas supply pipe is provided with a pressure gauge and a second switch valve; the input end of the second switch valve is communicated with the air supply pipe, and the output end of the second switch valve is communicated with the pressure gauge.

Preferably, the inner bottom wall of the liquid collecting tank is obliquely arranged towards the liquid return pipe.

Preferably, a plurality of groups of liquid outlet nozzles which are uniformly distributed in the circumferential direction are arranged on the three groups of annular liquid spraying pipes; the output ends of the plurality of groups of liquid outlet nozzles face the position of the valve to be detected.

(III) advantageous effects

Compared with the prior art, the utility model provides a pneumatic valve testing machine possesses following beneficial effect: this pneumatic valve testing machine, place the valve on placing the seat through placing the valve, the valve rod of valve is located the limiting sleeve below, the actuating cylinder action, the second feeds the seat and moves down, the valve rod inserts in the limiting sleeve, under actuating mechanism's effect, two sets of first seat synchronous feed that feeds, the sealing plug is filled in respectively to the both ends tip of valve, bubble liquid supplies liquid mechanism to spout bubble liquid to valve seal detection department, pressurize in to the valve, it produces to observe bubble liquid department whether, with the gas tightness condition of confirming the valve, the operation is simple, reduce water resource waste, improve valve detection efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2 according to the present invention;

fig. 4 is a schematic view of the enlarged structure of a part a in fig. 1 according to the present invention;

in the drawings, the reference numbers: 1. a test bed; 2. a placing seat; 3. a first feeding seat; 4. a second feeding seat; 5. a threaded lead screw; 6. a drive motor; 7. a sealing plug; 8. a drive cylinder; 9. a limiting sleeve; 10. a box body; 11. a pressure pump; 12. an annular liquid spray pipe; 13. an air pump; 14. a gas supply pipe; 15. a first on-off valve; 16. a liquid return pipe; 17. a liquid collecting tank; 18. a pressure gauge; 19. a second on-off valve; 20. a liquid outlet nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model discloses a pneumatic valve testing machine, including test bench 1, place seat 2, two sets of first feeding seats 3, second feeding seat 4 and bubble liquid supply mechanism, place seat 2 fixed mounting in the middle part of test bench 1, two sets of first feeding seats 3 all can be installed on test bench 1 of horizontal slip, install the actuating mechanism that provides power for first feeding seat 3 removes on test bench 1, actuating mechanism includes threaded lead screw 5 and driving motor 6, the left part and the right part screw thread of threaded lead screw 5 are each other left-hand thread, two sets of first feeding seats 3 are connected with the left part and the right part screw thread transmission of threaded lead screw 5 respectively, driving motor 6 fixed mounting is on test bench 1, the output of driving motor 6 and threaded lead screw 5 fixed connection, all install sealing plug 7 on two sets of first feeding seats 3; the second feeding seat 4 is arranged on the test bed 1 in a vertically sliding manner, a driving cylinder 8 for providing power for the vertical movement of the second feeding seat 4 is arranged on the test bed 1, and a limiting sleeve 9 is arranged at the bottom of the second feeding seat 4;

the bubble liquid supply mechanism comprises a box body 10, a pressure pump 11 and three groups of annular liquid spraying pipes 12, wherein the three groups of annular liquid spraying pipes 12 are respectively arranged on the two groups of sealing plugs 7 and the limiting sleeve 9, the input end of the pressure pump 11 extends into the box body 10, and the input ends of the three groups of annular liquid spraying pipes 12 are communicated with the output end of the pressure pump 11; the driving motor 6 drives the threaded lead screw 5 to rotate, so that the two groups of first feeding seats 3 synchronously move towards the valve to be detected, and by starting the pressure pump 11, the pressure pump 11 sprays bubble liquid (the bubble liquid can adopt soapy water) in the box body 10 to the joint of the valve and the valve rod and the joint of the sealing plug 7 and the valve through the multiple groups of annular liquid spraying pipes 12, so that the air tightness of the valve is detected.

Specifically, the device also comprises an air pump 13 and an air supply pipe 14, wherein the output end of the air pump 13 is communicated with the air supply pipe 14, the output end of the air supply pipe 14 penetrates through one group of sealing plugs 7, and a first switch valve 15 is installed on the air supply pipe 14; through the air pump 13, can inject compressed air into the valve body that awaits measuring through the air supply pipe 14, reach the test pressure after, close first ooff valve 15, carry out the pressurize to detect the gas tightness of valve, need not continuously supply air in the valve.

Specifically, the test bed further comprises a liquid return pipe 16, a liquid collecting tank 17 is arranged on the test bed 1, the input end of the liquid return pipe 16 is communicated with the liquid collecting tank 17, and the output end of the liquid return pipe 16 extends into the box body 10; redundant bubble liquid flows into the liquid collecting tank 17 and flows back into the box body 10 through the liquid return pipe 16 for recycling, and therefore the waste of the bubble liquid is reduced.

Specifically, the air supply pipe 14 is provided with a pressure gauge 18 and a second switch valve 19; the input end of the second switch valve 19 is communicated with the air supply pipe 14, and the output end of the second switch valve 19 is communicated with the pressure gauge 18; by opening the second switch valve 19, the pressure in the valve is read by the pressure gauge 18, and meanwhile, the pressure gauge 18 can assist in detecting the air tightness of the valve, and when the pressure is excessively reduced, the air tightness of the valve is not good.

Specifically, the inner bottom wall of the liquid collecting tank 17 is obliquely arranged towards the liquid return pipe 16; the inner bottom wall of the liquid collecting tank 17 is obliquely arranged towards the liquid return pipe 16, so that bubble liquid collected in the liquid collecting tank 17 can smoothly flow to the inlet of the liquid return pipe 16, and the residue of the bubble liquid in the liquid collecting tank 17 is reduced.

Specifically, the three groups of annular liquid spraying pipes 12 are all provided with a plurality of groups of liquid outlet nozzles 20 which are uniformly distributed in the circumferential direction; the output ends of the plurality of groups of liquid outlet nozzles 20 face the valve to be detected; through liquid outlet 20, can wait to detect the department with the even spraying of bubble liquid to the valve gas tightness, avoid the valve gas tightness to wait to detect local bubble liquid too much of department.

When the device is used, the valve is placed on the placing seat 2, the valve rod of the valve is located below the limiting sleeve 9, the driving cylinder 8 acts, the second feeding seat 4 moves downwards, the valve rod is inserted into the limiting sleeve 9, the driving motor 6 drives the threaded lead screw 5 to rotate, so that the two groups of first feeding seats 3 synchronously move towards the position of the valve to be detected, by starting the pressure pump 11, the pressure pump 11 sprays bubble liquid in the box body 10 to the connecting position of the valve and the valve rod through the liquid outlet nozzles 20 on the multiple groups of annular liquid spraying pipes 12, the connecting position of the sealing plug 7 and the valve is started, the air pump 13 is started, compressed air enters the valve to be detected through the air supply pipe 14, the first switch valve 15 is closed, whether bubbles are generated at the position to be detected is observed, the indicating number of the pressure gauge 18 is observed and recorded at the same time, if no bubbles are generated, the indicating that the air tightness of the valve is good, otherwise, the air tightness of the valve is unqualified.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest manner such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also the meaning of "above something" or "above" without intervening features or layers therebetween (i.e., directly on something).

Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (6)

1. The pneumatic valve testing machine is characterized by comprising a test bed (1), a placing seat (2), two groups of first feeding seats (3), a second feeding seat (4) and a bubble liquid supply mechanism, wherein the placing seat (2) is fixedly installed in the middle of the test bed (1), the two groups of first feeding seats (3) can be installed on the test bed (1) in a left-right sliding mode, and a driving mechanism for providing power for the first feeding seats (3) to move is installed on the test bed (1);

the driving mechanism comprises a threaded lead screw (5) and a driving motor (6), the left part and the right part of threads of the threaded lead screw (5) are mutually reversely buckled, two groups of first feeding seats (3) are respectively in transmission connection with the left part and the right part of the threaded lead screw (5), the driving motor (6) is fixedly arranged on the test bed (1), the output end of the driving motor (6) is fixedly connected with the threaded lead screw (5), and sealing plugs (7) are arranged on the two groups of first feeding seats (3);

the second feeding seat (4) is mounted on the test bed (1) in a vertically sliding mode, a driving cylinder (8) for providing power for the second feeding seat (4) to move up and down is mounted on the test bed (1), and a limiting sleeve (9) is mounted at the bottom of the second feeding seat (4);

bubble liquid supplies liquid mechanism includes box (10), force (forcing) pump (11) and three annular spray tube of group (12), and install respectively on two sets of sealing plugs (7) and stop sleeve (9) three annular spray tube of group (12), the input of force (forcing) pump (11) stretches into in box (10), the input of three annular spray tube of group (12) all communicates with the output of force (forcing) pump (11).

2. The pneumatic valve testing machine according to claim 1, further comprising an air pump (13) and an air supply pipe (14), wherein an output end of the air pump (13) is communicated with the air supply pipe (14), an output end of the air supply pipe (14) passes through one of the sets of sealing plugs (7), and the air supply pipe (14) is provided with a first switch valve (15).

3. The pneumatic valve testing machine according to claim 2, further comprising a liquid return pipe (16), wherein a liquid collecting tank (17) is arranged on the test bed (1), an input end of the liquid return pipe (16) is communicated with the liquid collecting tank (17), and an output end of the liquid return pipe (16) extends into the box body (10).

4. A pneumatic valve tester as claimed in claim 3, characterised in that the gas supply tube (14) is fitted with a pressure gauge (18) and a second on-off valve (19).

5. The pneumatic valve testing machine according to claim 4, wherein the inner bottom wall of the liquid collecting groove (17) is inclined towards the liquid return pipe (16).

6. The pneumatic valve testing machine according to claim 5, wherein a plurality of groups of circumferentially and uniformly distributed liquid outlets (20) are arranged on the three groups of annular liquid spraying pipes (12).

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