CN221198837U - Valve gas tightness test machine - Google Patents

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a valve air tightness testing machine, which comprises: the main body is provided with a detection station in the middle; the moving structure is transversely arranged in the detection station in a sliding manner and is used for clamping two ends of the valve; the expansion structure is provided with two parts, one part is arranged on the inner wall of one side of the detection station, the other part is arranged on the moving structure, and the two parts are oppositely arranged; the air pressure hole is arranged on the end face of the expansion structure and is used for injecting air into the valve; the air pressure detectors are symmetrically arranged in the detection station and are arranged on the end face of the expansion structure. The effect that can detect the valve of different specifications under the condition that sealing structure is not changed is achieved.

Description

Valve gas tightness test machine

Technical Field

The utility model belongs to the technical field of detection devices, and particularly relates to a valve air tightness testing machine.

Background

The valve air tightness tester is a device for detecting the sealing performance of a valve, and is widely applied to the fields of petroleum, chemical industry, urban water supply, fuel gas and the like. Because the valve needs to ensure the sealing performance in the use process, the air tightness test of the valve is an important link for ensuring the safe use of the valve.

The Chinese patent No. 218937653U discloses an air tightness testing device for a valve, wherein an electric motor is utilized to drive an electric push rod to move in the testing device, so that the extrusion rod moves towards the valve, a sealing gasket in the middle of the extrusion plate is matched with a valve opening, air pressure is discharged through an air pressure hole in the middle of the sealing gasket, the air tightness of the valve is tested, and a test result can be checked in a control box.

But the device is when detecting the valve of different specifications, in order to guarantee the sealed effect of valve, need operating personnel to change the closing plate, is unfavorable for promoting the efficiency that the valve detected.

Disclosure of utility model

The utility model aims at solving the technical problems, and provides a valve air tightness testing machine which achieves the effect of detecting valves with different specifications under the condition of not replacing a sealing structure.

In view of the above, the present utility model provides a valve air tightness testing machine, which is characterized by comprising:

The main body is provided with a detection station in the middle;

The moving structure is transversely arranged in the detection station in a sliding manner and is used for clamping two ends of the valve;

The expansion structure is provided with two parts, one part is arranged on the inner wall of one side of the detection station, the other part is arranged on the moving structure, and the two parts are oppositely arranged;

The air pressure hole is arranged on the end face of the expansion structure and is used for injecting air into the valve;

The air pressure detectors are symmetrically arranged in the detection station and are arranged on the end face of the expansion structure.

In this technical scheme, when carrying out the gas tightness test, place the valve in detecting the station, remove to valve department through the movable structure, can fix the both ends of valve, ensure that the valve can not remove or reveal in the test process, can seal the valve both ends through the expansion structure that sets up, ensure the accuracy of test, inject air in to the valve through the atmospheric pressure hole, observe the inside atmospheric pressure change of atmospheric pressure detector can detect the valve. Can avoid operating personnel to need carry out the phenomenon of changing to seal structure when detecting the valve of different specifications through the inflation structure, be favorable to promoting the efficiency that detects.

In the above technical solution, further, the expansion structure includes:

the fixed shaft is transversely arranged on the inner wall at one side of the detection station and the moving structure and is symmetrically arranged;

The annular groove is arranged on the surface of the fixed shaft, and a guide ring is sleeved in the annular groove in a rotating way;

the first guide grooves are uniformly distributed on the guide ring in the circumferential direction, and the guide ring is provided with second guide grooves with the guide direction opposite to that of the first guide grooves;

The compression ring is sleeved on the guide ring in a sliding manner, and a spring is arranged between the compression ring and the side wall of the annular groove;

The movable ring is sleeved on the guide ring in a sliding manner, and a rubber ring is arranged between the movable ring and the side wall of the annular groove;

The guide blocks are circumferentially and uniformly distributed on the inner walls of the compression ring and the movable ring and are in sliding connection with the first guide groove and the second guide groove;

the limiting rod is transversely arranged in the annular groove and connected with two side walls of the annular groove;

The limiting groove is arranged on the inner walls of the pressing ring and the movable ring and is in sliding connection with the limiting rod.

In this technical scheme, through adjusting the movable structure position, make the expansion structure of valve both sides get into the valve, through the shrink of movable structure, make valve both ends face extrusion clamping ring, and through the cooperation between gag lever post and the spacing groove that sets up, make the clamping ring inwards move along the axis, through the cooperation between guide block and the first guide way, can make the guide ring rotate, the rethread reverse second guide way of establishing the setting drives the movable ring and outwards moves along the axis, and extrude the rubber circle, make the rubber circle arch reach the purpose at seal valve both ends. When the valve is taken down, through reverse withdrawing the movable structure, can reset the clamping ring through the spring, make the rubber circle withdraw, be convenient for the operator take off the valve, be favorable to promoting the efficiency that detects.

In the above technical solution, further, the moving structure includes:

the movable rail is transversely arranged on the bottom surface of the detection station and provided with two movable rails;

The fixing frame is arranged above the movable rail, and a connecting block is arranged at the bottom of the fixing frame and is in sliding connection with the movable rail;

The first screw rod is rotatably arranged in one of the moving rails and is in threaded connection with the connecting block;

the servo motor is arranged at the end part of the first screw rod and used for driving the first screw rod to rotate;

And the polish rod is arranged in the other movable rail and is in sliding connection with the connecting block.

In this technical scheme, through servo motor drive first lead screw rotation, drive connecting block and mount and remove on the movable rail, can fix the valve and centre gripping, and through the polished rod that sets up, can play the effect of supplementary direction, skew when avoiding mount and connecting block to remove. The device has higher transmission efficiency through screw rod transmission, can improve the detection efficiency of the device, and has simple screw rod transmission structure, convenient operation and low maintenance cost.

In the above technical scheme, further, a lifting structure is arranged in the detection station.

In the above technical solution, further, the lifting structure includes:

The sliding groove is transversely formed in the bottom of the detection station, and a sliding rod is arranged in the sliding groove;

The sliding block is arranged in the sliding groove in a sliding way and is in sliding connection with the sliding rod;

The mounting seat is arranged above the sliding block, and a mounting plate is arranged above the mounting seat;

the support block is detachably arranged on the mounting plate and used for supporting the valve;

And the lifting structure is arranged between the mounting seat and the mounting plate and used for adjusting the height of the supporting block.

In this technical scheme, can adjust the height of mounting panel and riding block through control promotion structure, and be detachable between riding block and the mounting panel and be connected, can be convenient for the operator detect the valve that has different specifications or different appearances, be favorable to elevating gear's application scope.

In the above technical solution, further, the lifting structure includes:

the accommodating groove is formed in the side face of the mounting seat;

the top end of the second screw rod is connected with the bottom surface of the mounting plate, and the bottom end of the second screw rod is provided with a first conical gear;

The second conical gear is meshed with the first conical gear and is arranged in the accommodating groove;

The rotary handle is arranged on the front surface of the mounting seat, and the central shaft penetrates through the side wall of the accommodating groove and is connected with the second bevel gear;

the guide post, the flexible setting of guide post is between mount pad and mounting panel.

In this technical scheme, drive second bevel gear through rotating rotatory handle and rotate, make first bevel gear drive the second lead screw and rotate to make the mounting panel reciprocate, through the guide post that sets up, can restrict the travel path of mounting panel, avoid the mounting panel to remove the in-process and take place the skew. The valve that can be convenient for the operator to have different specifications detects through lifting structure, is favorable to hoisting device's application scope.

In the above technical scheme, further, a detachable noise reduction cover is arranged above the detection station. In the technical scheme, the noise reduction cover can shield the detection station through at least one of the following actions or a combination of the following actions: rotating, overturning, sliding and folding. Noise through the cover of making an uproar that falls that sets up can make the test produce is isolated inside the main part, can not bring noise puzzlement around for.

The beneficial effects of the utility model are as follows:

1. Can avoid operating personnel to need carry out the phenomenon of changing to seal structure when detecting the valve of different specifications through the inflation structure, be favorable to promoting the efficiency that detects.

2. The lifting structure can be controlled to adjust the height of the mounting plate and the supporting blocks, the supporting blocks are detachably connected with the mounting plate, operators can conveniently detect valves with different specifications or different shapes, and the lifting device is beneficial to the application range of the lifting device.

3. Noise through the cover of making an uproar that falls that sets up can make the test produce is isolated inside the main part, can not bring noise puzzlement around for.

Drawings

FIG. 1 is a top view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an exploded view of the expanded structure of the present utility model;

FIG. 4 is a cross-sectional view of an expanded structure of the present utility model;

FIG. 5 is a cross-sectional view of the lift structure of the present utility model;

FIG. 6 is a schematic diagram of a mobile structure of the present utility model;

The label in the figure is:

1. A main body; 2. detecting a station; 3. an expansion structure; 301. a fixed shaft; 302. an annular groove; 303. a guide ring; 304. a first guide groove; 305. a second guide groove; 306. a compression ring; 307. a moving ring; 308. a guide block; 309. a limit rod; 310. a limit groove; 311. a rubber ring; 312. a spring; 4. a moving structure; 401. a moving rail; 402. a first screw rod; 403. a polish rod; 404. a servo motor; 405. a connecting block; 406. a fixing frame; 5. a lifting structure; 501. a slip groove; 502. a slide bar; 503. a slide block; 504. a mounting base; 505. a mounting plate; 506. a support block; 6. a lifting structure; 601. a receiving groove; 602. a second screw rod; 603. a first bevel gear; 604. a second bevel gear; 605. rotating the handle; 606. a guide post; 7. an air pressure hole; 8. an air pressure detector; 9. noise reduction cover.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present application, the terms like "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and these orientation terms do not indicate and imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in the present application, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

As shown in fig. 1 to 6, the present embodiment provides a valve air tightness testing machine, including: the device comprises a main body 1, wherein a detection station 2 is arranged in the middle of the main body 1; the moving structure 4 is arranged in the detection station 2 in a transversely sliding manner and used for clamping two ends of the valve; the expansion structure 3 is provided with two parts, one part is arranged on the inner wall at one side of the detection station 2, the other part is arranged on the moving structure 4, and the two parts of the expansion structure 3 are oppositely arranged; an air pressure hole 7, wherein the air pressure hole 7 is arranged on the end surface of the expansion structure 3 and is used for injecting air into the valve; the air pressure detectors 8 are symmetrically arranged in the detection station 2 and are arranged on the end face of the expansion structure 3. Wherein, the pneumatic hole 7 is arranged on the end face of the expansion structure 3 fixed on the side wall of the detection station 2.

When carrying out the gas tightness test, place the valve in detecting station 2, remove to valve department through moving structure 4, can fix the both ends of valve, ensure that the valve can not remove or reveal in the test process, can seal the valve both ends through the inflation structure 3 that sets up, ensure the accuracy of test, inject air in to the valve through atmospheric pressure hole 7, can detect the inside atmospheric pressure change of valve through atmospheric pressure detector 8, the rethread is set up at the control panel at main part 1 top and is observed specific numerical value, judge the valve gas tightness. Through the expansion structure 3, the phenomenon that an operator needs to replace a sealing structure when detecting valves with different specifications can be avoided, and the detection efficiency is improved.

The expansion structure 3 comprises: the fixed shaft 301 is transversely arranged on the inner wall at one side of the detection station 2 and the moving structure 4, and is symmetrically arranged; an annular groove 302, wherein the annular groove 302 is arranged on the surface of the fixed shaft 301, and a guide ring 303 is sleeved in the annular groove 302 in a rotating way; the first guide grooves 304 are uniformly distributed on the guide ring 303 in the circumferential direction, and the guide ring 303 is provided with second guide grooves 305 with the guide direction opposite to that of the first guide grooves 304; the pressing ring 306 is sleeved on the guide ring 303 in a sliding manner, and a spring 312 is arranged between the pressing ring 306 and the side wall of the annular groove 302; a moving ring 307, wherein the moving ring 307 is slidably sleeved on the guide ring 303, and a rubber ring 311 is arranged between the moving ring 307 and the side wall of the annular groove 302; the guide blocks 308 are uniformly distributed on the inner walls of the compression ring 306 and the movable ring 307 in the circumferential direction, and are in sliding connection with the first guide groove 304 and the second guide groove 305; the limiting rod 309 is transversely arranged in the annular groove 302 and connected with two side walls of the annular groove 302; the limiting groove 310 is disposed on the inner walls of the pressing ring 306 and the moving ring 307, and is slidably connected with the limiting rod 309.

Through adjusting the position of the moving structure 4, the expansion structures 3 on two sides of the valve enter the valve, the compression ring 306 is extruded on two end faces of the valve through the contraction of the moving structure 4, the compression ring 306 moves inwards along the axis through the cooperation between the limiting rod 309 and the limiting groove 310, the guide ring 303 can rotate through the cooperation between the guide block 308 and the first guide groove 304, the moving ring 307 is driven to move outwards along the axis through the second guide groove 305 reversely arranged, and the rubber ring 311 is extruded, so that the rubber ring 311 protrudes to achieve the purpose of sealing two ends of the valve. When the valve is taken down, through reverse withdrawing the movable structure 4, can reset the clamping ring 306 through the spring 312, make the rubber ring 311 withdraw, be convenient for the operator take down the valve, be favorable to promoting the efficiency that detects.

Example 2:

As shown in fig. 1 to 5, the present embodiment provides a valve air tightness testing machine having the following technical features in addition to the technical scheme of the above embodiment.

The moving structure 4 includes: the movable rail 401 is transversely arranged on the bottom surface of the detection station 2, and two movable rails 401 are arranged; the fixed mount 406, the fixed mount 406 is set up above the movable rail 401, and there are connecting blocks 405 in the bottom of the fixed mount 406, the said connecting block 405 is in sliding connection with movable rail 401; the first screw rod 402 is rotatably arranged in one of the moving rails 401 and is in threaded connection with the connecting block 405; the servo motor 404 is arranged at the end part of the first screw rod 402 and is used for driving the first screw rod 402 to rotate; the polished rod 403 is disposed in the other moving rail 401, and is slidably connected to the connection block 405.

The first screw rod 402 is driven to rotate through the servo motor 404, the connecting block 405 and the fixing frame 406 are driven to move on the moving rail 401, the valve can be fixed and clamped, and an auxiliary guiding effect can be achieved through the arranged polished rod 403, so that the fixing frame 406 and the connecting block 405 are prevented from moving and shifting. The device has higher transmission efficiency through screw rod transmission, can improve the detection efficiency of the device, and has simple screw rod transmission structure, convenient operation and low maintenance cost.

Example 3:

as shown in fig. 1 to 6, the present embodiment provides a valve air tightness testing machine having the following technical features in addition to the technical scheme of the above embodiment.

A lifting structure 5 is arranged in the detection station 2. The lifting structure 5 comprises: the sliding groove 501 is transversely formed in the bottom of the detection station 2, and a sliding rod 502 is arranged in the sliding groove 501; the sliding block 503 is slidably arranged in the sliding groove 501 and is in sliding connection with the sliding rod 502; a mounting base 504, wherein the mounting base 504 is arranged above the sliding block 503, and a mounting plate 505 is arranged above the mounting base 504; the supporting block 506 is detachably arranged on the mounting plate 505 and used for supporting the valve; the lifting structure 6 is arranged between the mounting seat 504 and the mounting plate 505, and is used for adjusting the height of the supporting block 506.

The lifting structure 6 is controlled to adjust the heights of the mounting plate 505 and the supporting blocks 506, the supporting blocks 506 are detachably connected with the mounting plate 505, an operator can conveniently detect valves with different specifications or different shapes, and the application range of the lifting device is facilitated.

The lifting structure 6 comprises a containing groove 601, wherein the containing groove 601 is arranged on the side surface of the mounting seat 504; the top end of the second screw rod 602 is connected with the bottom surface of the mounting plate 505, and the bottom end of the second screw rod 602 is provided with a first conical gear 603; a second bevel gear 604, the second bevel gear 604 being meshed with the first bevel gear 603 and being disposed in the receiving groove 601; a rotary handle 605, wherein the rotary handle 605 is arranged on the front surface of the mounting seat 504, and a central shaft penetrates through the side wall of the accommodating groove 601 and is connected with the second bevel gear 604; the guide post 606, the guide post 606 stretches out and draws back and sets up between mount pad 504 and mounting panel 505.

The second bevel gear 604 is driven to rotate by rotating the rotary handle 605, so that the first bevel gear 603 drives the second screw rod 602 to rotate, the mounting plate 505 moves up and down, the moving path of the mounting plate 505 can be limited by the guide post 606, and the shifting of the mounting plate 505 in the moving process is avoided. The valve with different specifications can be conveniently detected by an operator through the lifting structure 6, and the application range of the lifting device is facilitated.

A detachable noise reduction cover 9 is arranged above the detection station 2. The noise reduction hood 9 can conceal the inspection station 2 by at least one of the following actions or a combination thereof: rotating, overturning, sliding and folding. Noise generated by testing can be isolated inside the main body 1 through the noise reduction cover 9, and noise trouble can not be brought to the periphery.

The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.

Claims (7)

1. A valve air tightness testing machine, comprising:

the device comprises a main body (1), wherein a detection station (2) is arranged in the middle of the main body (1);

The moving structure (4) is transversely arranged in the detection station (2) in a sliding manner and is used for clamping two ends of the valve;

The expansion structure (3) is arranged at two positions, one position is arranged on the inner wall of one side of the detection station (2), the other position is arranged on the moving structure (4), and the two expansion structures (3) are oppositely arranged;

the air pressure hole (7) is arranged on the end face of the expansion structure (3) and is used for injecting air into the valve;

The air pressure detectors (8) are symmetrically arranged in the detection station (2) and are arranged on the end face of the expansion structure (3).

2. A valve tightness testing machine according to claim 1, wherein said expansion structure (3) comprises:

The fixed shaft (301), the fixed shaft (301) is transversely arranged on the inner wall of one side of the detection station (2) and the moving structure (4), and is symmetrically arranged;

The annular groove (302), the annular groove (302) is arranged on the surface of the fixed shaft (301), and the annular groove (302) is rotationally sleeved with a guide ring (303);

the first guide grooves (304) are uniformly distributed on the guide ring (303) in the circumferential direction, and the guide ring (303) is provided with second guide grooves (305) with the guide direction opposite to that of the first guide grooves (304);

the compression ring (306) is sleeved on the guide ring (303) in a sliding manner, and a spring (312) is arranged between the compression ring (306) and the side wall of the annular groove (302);

The movable ring (307) is sleeved on the guide ring (303) in a sliding manner, and a rubber ring (311) is arranged between the movable ring (307) and the side wall of the annular groove (302);

The guide blocks (308) are circumferentially and uniformly distributed on the inner walls of the compression ring (306) and the movable ring (307), and are in sliding connection with the first guide groove (304) and the second guide groove (305);

The limiting rod (309) is transversely arranged in the annular groove (302) and is connected with two side walls of the annular groove (302);

The limiting groove (310) is formed in the inner wall of the pressing ring (306) and the inner wall of the movable ring (307), and the limiting groove (310) is in sliding connection with the limiting rod (309).

3. Valve tightness testing machine according to claim 1, wherein said moving structure (4) comprises:

The movable rails (401) are transversely arranged on the bottom surface of the detection station (2), and two movable rails are arranged;

the fixed frame (406), fixed frame (406) is set up above the movable rail (401), and the bottom of fixed frame (406) is provided with connecting block (405), connecting block (405) is sliding connection with movable rail (401);

The first screw rod (402) is rotatably arranged in one of the moving rails (401) and is in threaded connection with the connecting block (405);

The servo motor (404) is arranged at the end part of the first screw rod (402) and used for driving the first screw rod (402) to rotate;

The polished rod (403), polished rod (403) set up in another movable rail (401) and with connecting block (405) for sliding connection.

4. Valve tightness testing machine according to claim 1, characterized in that a lifting structure (5) is provided in the detection station (2).

5. Valve tightness testing machine according to claim 4, wherein said lifting structure (5) comprises:

The sliding groove (501) is transversely formed in the bottom of the detection station (2), and a sliding rod (502) is arranged in the sliding groove (501);

The sliding block (503) is arranged in the sliding groove (501) in a sliding way, and is in sliding connection with the sliding rod (502);

the mounting seat (504), the mounting seat (504) is arranged above the sliding block (503), and a mounting plate (505) is arranged above the mounting seat (504);

The support block (506) is detachably arranged on the mounting plate (505) and used for supporting the valve;

And the lifting structure (6) is arranged between the mounting seat (504) and the mounting plate (505) and used for adjusting the height of the supporting block (506).

6. Valve tightness testing machine according to claim 5, wherein said lifting structure (6) comprises:

the accommodating groove (601) is formed in the side face of the mounting seat (504);

The top end of the second screw rod (602) is connected with the bottom surface of the mounting plate (505), and the bottom end of the second screw rod is provided with a first conical gear (603);

A second bevel gear (604), the second bevel gear (604) being meshed with the first bevel gear (603) and being disposed in the accommodation groove (601);

The rotary handle (605) is arranged on the front surface of the mounting seat (504), and a central shaft penetrates through the side wall of the accommodating groove (601) and is connected with the second bevel gear (604);

and the guide post (606) is telescopically arranged between the mounting seat (504) and the mounting plate (505).

7. Valve tightness testing machine according to claim 1, characterized in that a detachable noise reduction cover (9) is arranged above the detection station (2).