CN219224078U - Automatic change valve leak hunting device - Google Patents

Abstract

The utility model discloses an automatic valve leakage detection device which comprises a workbench, wherein a chute along the length direction of the workbench is arranged on the workbench, two sliding blocks are connected in the chute, a bidirectional screw rod is arranged in the chute, the sliding blocks are all connected with the bidirectional screw rod through bidirectional screw nuts, the bidirectional screw rod is driven by a motor, an installation seat is arranged on the workbench, the installation seat is arranged between the two sliding blocks, sealing covers are arranged on the surfaces, facing the installation seat, of the two sliding blocks, a groove matched with the end part of a valve is arranged on the opposite surface of the two sealing covers, a sealing mechanism is arranged in the groove, air pressure detectors are arranged in the two sealing covers, an air inlet pipe is further arranged in the groove, the air inlet pipe is connected with an air compressor through an air conveying pipe, compressed air is input into one end of the sealed valve, and the air pressure detector is used for detecting the change of air pressure values in the two ends of the valve, so that the sealing performance of the current valve can be judged.

Description

Automatic change valve leak hunting device

Technical Field

The utility model relates to the technical field of valve detection, in particular to an automatic valve leakage detection device.

Background

The valve is a common opening and closing piece when gas or liquid circulates and is generally used in two important industries of gas pipe network and water conservancy transportation, so that the valve is required to be subjected to tightness detection before leaving a factory, and the product quality is ensured.

The existing valve sealing detection mode mostly adopts a sealing gasket to be arranged outside two ends of a valve, then uses a jack or a hydraulic cylinder and other force application devices to clamp the two ends of the valve, so that the sealing gasket and the two ends of the valve form a seal, then places the sealed valve into water, and introduces compressed gas into the valve to observe whether bubbles are generated in the water or not so as to judge the sealing performance of the valve.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the utility model provides an automatic valve leakage detection device, which aims to solve the problems in the prior art.

The embodiment of the application discloses: the utility model provides an automatic change valve leak hunting device, includes the workstation, be equipped with the spout along its length direction on the workstation, sliding connection has two sliders in the spout, be equipped with in the spout along its length direction's two-way lead screw, two the slider all through two-way lead screw nut with two-way lead screw connection, two-way lead screw passes through servo motor drive, be equipped with the mount pad that is used for placing the valve on the workstation, the mount pad is located two between the slider, two the slider is just to the one side of mount pad is equipped with first sealed lid and second sealed lid respectively, first sealed lid with the one side that the second sealed lid is relative all is equipped with the recess that matches with the valve tip, be equipped with sealing mechanism in the recess, first sealed lid with the intermediate position of second sealed lid is equipped with first air pressure detector and second air pressure detector respectively, still be equipped with the intake pipe in the first sealed lid, the intake pipe is connected with air compressor through the gas-supply pipe.

Preferably, the sealing mechanism comprises a rubber sealing ring connected to the bottom surface of the groove and a sealing sleeve integrally constructed with the sealing ring and connected to the circumferential surface of the groove, a first annular air chamber coaxial with the sealing ring is arranged in the sealing ring, a second annular air chamber coaxial with the sealing sleeve is arranged in the sealing sleeve, and a pipeline for communicating the first annular air chamber and the second annular air chamber is arranged in the sealing sleeve.

Preferably, the up end of mount pad is equipped with the profiling groove that matches with the valve, the mount pad is equipped with the inner chamber, the up end of mount pad is equipped with two perpendicular to its length direction and with profiling groove symmetry's logical groove, but through the slide rail sliding connection along its length direction in the logical groove have two movable blocks, two the movable block one side of facing away from with be connected with the spring between the inner wall of logical groove, two the opposite one side of movable block all have through spring coupling with the clamp splice that the valve matches, two the one side that the bottom of movable block is close to each other is all vertical to be connected with the bearing roller, the slider just is to the one side of mount pad is fixed with two crossbars that are located same horizontal plane, two the crossbars are close to the one end of mount pad all sets up to the inclined plane towards inboard, the side of mount pad is equipped with the confession the opening that the crossbars stretch into.

Preferably, the pipeline is provided as a metal pipe.

Preferably, the thickness dimension of the inner side wall of the second annular air chamber is 1mm.

The beneficial effects of the utility model are as follows: the device is sealed through the first sealed lid with the both ends of valve that awaits measuring are sealed to the second sealed lid, sealing mechanism passes through sealing washer and seal cover constitute double seal and guarantee sealed effect, carry compressed air in the one section of valve after to sealing through air compressor, through first air pressure detector with the air pressure value at second air pressure detector detection valve both ends changes, can judge the sealed effect of current valve, easy operation can avoid the error that traditional detecting means brought.

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a portion of an automated valve leak detection apparatus.

Fig. 2 is a schematic view of a first seal cap.

Fig. 3 is a schematic view of a second seal cap.

Fig. 4 is a schematic diagram of a movable block structure.

Reference numerals of the above drawings: 1. a work table; 2. a chute; 3. a slide block; 4. a two-way screw rod; 5. a mounting base; 6. a first sealing cover; 7. a second sealing cover; 8. a first air pressure detector; 9. a second air pressure detector; 10. an air inlet pipe; 11. a seal ring; 12. sealing sleeve; 13. a first annular air chamber; 14. a second annular air chamber; 15. a pipeline; 16. a through groove; 17. a movable block; 18. clamping blocks; 19. a carrier roller; 20. a cross bar; 21. and (5) an inclined plane.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, an automatic valve leakage detection device comprises a workbench 1, wherein a chute 2 along the length direction of the workbench 1 is arranged on the workbench 1, two sliding blocks 3 are connected in a sliding way in the chute 2, a bidirectional screw rod 4 along the length direction of the chute 2 is arranged in the chute 2, the two sliding blocks 3 are connected with the bidirectional screw rod 4 through bidirectional screw nuts, the bidirectional screw rod 4 is driven by a servo motor, an installation seat 5 for placing a valve is arranged on the workbench 1, the installation seat 5 is positioned between the two sliding blocks 3, one surface of the two sliding blocks 3, which is opposite to the installation seat 5, is respectively provided with a first sealing cover 6 and a second sealing cover 7, opposite surfaces of the first sealing cover 6 and the second sealing cover 7 are respectively provided with a groove matched with the end parts of a valve, a sealing mechanism is arranged in the groove, the middle positions of the first sealing cover 6 and the second sealing cover 7 are respectively provided with a first air pressure detector 8 and a second air pressure detector 9, a first sealing cover 6 is also arranged in the first sealing cover 6, a valve is connected with the first air inlet pipe 10, the first air inlet pipe 10 is connected with the first air inlet pipe 6 through the valve and the second air inlet pipe 10, the first air inlet pipe is connected with the first air inlet pipe 9 through the valve and the second air inlet pipe 9, and the air pressure detector is well detected to the two air pressure detectors are respectively, and the first air inlet valve 9 is connected with the first air inlet pipe 6 and the second air inlet pipe 6 and the air inlet valve is well, and the air pressure detector is respectively, and the air pressure detector is well detected, and the air pressure valve is respectively, and the air pressure valve is detected by the valve is respectively, and the valve is detected the valve is respectively; if the air pressure value detected by the first air pressure detector 8 becomes smaller and the air pressure value detected by the second air pressure detector 9 is unchanged, the current valve is leaked; if the air pressure value detected by the first air pressure detector 8 becomes smaller and the air pressure value detected by the second air pressure detector 9 becomes larger, the valve is an internal leakage.

The sealing mechanism comprises a rubber sealing ring 11 connected to the bottom surface of the groove and a sealing sleeve 12 integrally constructed with the sealing ring 11 and connected to the peripheral surface of the groove, a first annular air chamber 13 coaxial with the sealing ring is arranged in the sealing sleeve 11, a second annular air chamber 14 coaxial with the sealing sleeve is arranged in the sealing sleeve 12, a pipeline 15 which is communicated with the first annular air chamber 13 and the second annular air chamber 14 is arranged in the sealing sleeve 12, the two sliding blocks 3 are mutually close to each other, two ends of the valve respectively extend into the first sealing cover 6 and the second sealing cover 7, the end face of the valve abuts against the sealing ring 11, so that the end of the valve is sealed, the first annular air chamber 13 is extruded, extruded air flows into the second annular air chamber 14 from the pipeline 15, the second annular air chamber 14 is expanded under pressure, the inner side wall of the second annular air chamber 14 is further protruded outwards and abuts against the outer wall of the end of the valve, and a second sealing effect is formed.

The upper end face of mount pad 5 is equipped with the profiling groove that matches with the valve, mount pad 5 is equipped with the inner chamber, the up end of mount pad 5 is equipped with two perpendicular to its length direction and just regards profiling groove symmetry's logical groove 16, but through the slide rail sliding connection along its length direction in the logical groove 16 have two movable blocks 17, two the movable block 17 back to one side with be connected with the spring between the inner wall of logical groove 16, two the opposite one side of movable block 17 all has through spring coupling with the clamp splice 18 that the valve matches, two the one side that the bottom of movable block 17 is close to each other all is vertical to be connected with bearing roller 19, slider 3 just to the one side of mount pad 5 is fixed with two crossbars 20 that are located same horizontal plane, two crossbars 20 are close to one end of mount pad 5 all sets up to be towards inboard inclined plane 21, the side of mount pad 5 is equipped with the confession the opening that stretches into will wait to detect the valve is placed in the profiling groove, servo motor drive slider 3 the middle part 18 with two clamp splice 20, two clamp splice 20 are kept close to each other by two the two seal cover 20, two seal cover 20 mutually, thereby two seal cover 20 are held close to each other by two the two opposite seal cover 20.

The pipeline 15 is provided as a metal pipe, so that the pipeline 15 is prevented from being deformed due to compression, and the extruded air of the first annular air chamber 13 completely flows into the second annular air chamber 14, so that the second annular air chamber 14 is expanded.

The thickness dimension of the inner side wall of the second annular air chamber 14 is 1mm.

The beneficial effects of the embodiment of the application are as follows: placing a valve to be detected on the mounting seat 5, driving the two sliding blocks 3 to be close to each other by the servo motor, enabling two ends of the valve to extend into the first sealing cover 6 and the second sealing cover 7 respectively, inputting a certain amount of compressed air into one end of the valve by the air compressor through the air inlet pipe 10, detecting the air pressure at two ends of the valve by the first air pressure detector 8 and the second air pressure detector 9 respectively, and if the air pressure values detected by the first air pressure detector 8 and the second air pressure detector 9 are unchanged, obtaining good air tightness of the valve; if the air pressure value detected by the first air pressure detector 8 becomes smaller and the air pressure value detected by the second air pressure detector 9 is unchanged, the current valve is leaked; if the air pressure value detected by the first air pressure detector 8 becomes smaller and the air pressure value detected by the second air pressure detector 9 becomes larger, the valve is an internal leakage.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (5)

1. An automatic change valve leak hunting device which characterized in that: the automatic sealing device comprises a workbench, wherein a sliding groove along the length direction of the workbench is formed in the workbench, two sliding blocks are connected in the sliding groove in a sliding manner, a bidirectional screw rod along the length direction of the sliding groove is arranged in the sliding groove, the two sliding blocks are connected with the bidirectional screw rod through bidirectional screw rod nuts, the bidirectional screw rod is driven by a servo motor, a mounting seat for placing a valve is arranged on the workbench, the mounting seat is positioned between the two sliding blocks, the two sliding blocks are opposite to one surface of the mounting seat, which is respectively provided with a first sealing cover and a second sealing cover, opposite surfaces of the first sealing cover and the second sealing cover are respectively provided with a groove matched with the end part of a valve, a sealing mechanism is arranged in the groove, a first air pressure detector and a second air pressure detector are respectively arranged in the middle positions of the first sealing cover and the second sealing cover, and an air inlet pipe is further arranged in the first sealing cover and is connected with an air compressor through an air pipe.

2. An automated valve leak detection apparatus as defined in claim 1, wherein: the sealing mechanism comprises a rubber sealing ring connected to the bottom surface of the groove and a sealing sleeve integrally constructed with the sealing ring and connected to the peripheral surface of the groove, a first annular air chamber coaxial with the sealing ring is arranged in the sealing ring, a second annular air chamber coaxial with the sealing sleeve is arranged in the sealing sleeve, and a pipeline for communicating the first annular air chamber and the second annular air chamber is arranged in the sealing sleeve.

3. An automated valve leak detection apparatus as defined in claim 1, wherein: the upper end face of mount pad is equipped with the profile modeling groove that matches with the valve, the mount pad is equipped with the inner chamber, the up end of mount pad is equipped with two perpendicular to its length direction and about the logical groove of profile modeling groove symmetry, but through the slide rail sliding connection along its length direction in the logical groove have two movable blocks, two the one side that the movable block was facing away from with be connected with the spring between the inner wall of logical groove, two the opposite one side of movable block all have through spring coupling with the clamp splice that the valve matches, two the one side that the bottom of movable block is close to each other is all vertical to be connected with the bearing roller, the slider just is fixed with two and is located same horizontal plane to the one side of mount pad, two the horizontal pole is close to the one end of mount pad is all set up to the inclined plane towards inboard, the side of mount pad is equipped with the confession the opening that the horizontal pole stretches into.

4. An automated valve leak detection apparatus as defined in claim 2, wherein: the pipeline is arranged as a metal pipe.

5. An automated valve leak detection apparatus as defined in claim 2, wherein: the thickness dimension of the inner side wall of the second annular air chamber is 1mm.

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