Pneumatic valve detection device

Abstract

The utility model discloses a pneumatic valve detection device, which relates to the technical field of valve detection and comprises a first hydraulic cylinder, a first hydraulic rod is fixedly mounted at the bottom end of the first hydraulic cylinder, a round disc is fixedly mounted at the bottom end of the first hydraulic rod, and a detection mechanism is arranged in the center of the lower end face of the round disc. A clamping device is arranged on the outer surface of the first hydraulic cylinder and comprises four second hydraulic cylinders, the four second hydraulic cylinders are fixedly mounted on the periphery of the outer surface of the first hydraulic cylinder correspondingly, and second hydraulic rods are fixedly mounted at the ends, away from the first hydraulic cylinder, of the four second hydraulic cylinders correspondingly; by arranging the first hydraulic cylinders, the second hydraulic cylinders and the L-shaped supports, valves of different sizes can be clamped and fixed, so that the purpose of detecting the valves of different specifications is achieved, and the application range of the device is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, in particular to a pneumatic valve detection device. Background Art

[0002] Regular inspection and maintenance of pneumatic valves can timely discover and solve problems, ensure the normal operation of the valve and extend its service life. Pneumatic valve inspection is an important part of ensuring the performance, quality, safety and reliability of pneumatic valves. Pneumatic valve inspection includes appearance inspection, sealing test, etc.

[0003] The currently published patent: CN210051491U discloses a valve port sealing device for pneumatic valve detection, including a detection water tank, an extension plate is welded to the rear side of the upper end of the detection water tank, and a valve port sealing detection mechanism is fixedly provided on the front side of the extension plate; the valve port sealing detection mechanism includes a mounting panel fixedly provided on the front side of the extension plate, a Y-axis stroke assembly is fixedly provided on the front side of the mounting panel, a valve port compacting assembly is welded to the middle part of the front end of the Y-axis stroke assembly, the outer side of the middle part of the valve port compacting assembly is connected to the external air supply source, and the inner side of the lower end of the valve port compacting assembly is in active contact with the water body inside the detection water tank through an external controller.

[0004] When the above-mentioned device is in use, the pneumatic valve to be tested is placed inside the placement groove, and the driving cylinder is used to push the pressure block to compact and seal the pneumatic valve. However, this solution will have the following problems during use: the size of the placement groove is fixed and cannot be adjusted according to the size of the pneumatic valve to be tested, so that the above-mentioned device cannot detect valves of different specifications and has low applicability. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a pneumatic valve detection device that can solve the problem that the above-mentioned device cannot detect valves of different specifications and has low applicability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic valve detection device, comprising a first hydraulic cylinder, a first hydraulic rod is fixedly installed at the telescopic end of the first hydraulic cylinder, a circular plate is fixedly installed at the bottom end of the first hydraulic rod, and a detection mechanism is arranged at the center position of the lower end surface of the circular plate;

[0009] Among them, a clamping device is provided on the outer surface of the first hydraulic cylinder, and the clamping device includes four second hydraulic cylinders. The four second hydraulic cylinders are respectively fixedly installed around the outer surface of the first hydraulic cylinder, and the telescopic ends of the four second hydraulic cylinders are fixedly installed with second hydraulic rods, and the ends of the four second hydraulic rods away from the second hydraulic cylinders are fixedly installed with L-shaped brackets.

[0010] Preferably, the detection mechanism comprises a conical base, which is fixedly mounted on the center of the lower end surface of the circular disk, and an exhaust port is fixedly mounted on the bottom end of the conical base;

[0011] The top of the outer surface of the conical base is fixedly provided with an air inlet end, and the air inlet end is internally connected with the exhaust end.

[0012] Preferably, sliding grooves are provided on the upper end surface of the circular plate at positions corresponding to the four L-shaped brackets, and the four sliding grooves are slidably connected to the corresponding four L-shaped brackets.

[0013] Preferably, the bottom ends of the four L-shaped brackets extend to below the exhaust end, and the inner folded surfaces of the four L-shaped brackets are arranged opposite to each other.

[0014] Preferably, an elastic sealing gasket is sleeved on the outer side of the exhaust end.

[0015] Preferably, inner surfaces of the four L-shaped brackets facing the detection mechanism are covered with buffer pads.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The pneumatic valve detection device can clamp and fix valves of different sizes by setting the first hydraulic cylinder and the second hydraulic cylinder, so as to achieve the purpose of detecting valves of different specifications, thereby expanding the application scope of the device.

[0019] (2) The pneumatic valve detection device is provided with an elastic sealing pad and a buffer pad. When the truncated cone-shaped elastic sealing pad is subjected to vertical pressure from the valve, it undergoes outward elastic deformation, so that after the parts are clamped, the elastic sealing pad exerts a force in the opposite direction on the parts and produces deformation, resulting in a tighter connection and better sealing. In addition, the elasticity of the material can provide a buffering protection for the clamped parts to prevent damage to the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 This is a structural schematic diagram of a pneumatic valve detection device of the utility model;

[0022] Figure 2 The utility model is a schematic diagram of the structure of a pneumatic valve detection device.

[0023] Figure numerals: 1, exhaust end; 2, elastic sealing pad; 3, air inlet end; 4, circular disk; 5, sliding groove; 6, L-shaped bracket; 7, buffer pad; 8, second hydraulic cylinder; 9, second hydraulic rod; 10, first hydraulic cylinder; 11, first hydraulic rod; 12, conical base. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] See also Figure 1-2 The utility model provides a technical solution: a pneumatic valve detection device, including a first hydraulic cylinder 10. Figure 1 As shown, a first hydraulic rod 11 is fixedly mounted on the telescopic end of the first hydraulic cylinder 10. A circular plate 4 is fixedly mounted on the bottom end of the first hydraulic rod 11, and a detection mechanism is arranged at the center position of the lower end surface of the circular plate 4.

[0026] Specifically, Figure 2 As shown, the detection mechanism includes a conical base 12. The conical base 12 is fixedly mounted on the center of the lower end surface of the circular disk 4, and an exhaust port 1 communicating with the inside of the conical base 12 is fixedly mounted on the bottom end of the conical base 12.

[0027] The outer surface of the conical base 12 is fixedly mounted with an air inlet 3 communicating with the inside of the conical base 12. The exhaust pipe of the air compressor is connected to the air inlet 3 of the conical base 12. The part to be tested is completely immersed in water, the air compressor is turned on, air enters from the air inlet 3 and is discharged from the exhaust end 1, and whether bubbles are generated in the water is observed. If bubbles are observed, the sealing of the pneumatic valve to be tested is unqualified, and if no bubbles are generated, the sealing of the pneumatic valve to be tested is qualified.

[0028] Furthermore, a clamping device is provided on the outer surface of the first hydraulic cylinder 10. The clamping device includes four second hydraulic cylinders 8, and the four second hydraulic cylinders 8 are respectively fixedly installed around the outer surface of the first hydraulic cylinder 10. The telescopic ends of the four second hydraulic cylinders 8 are all fixedly installed with second hydraulic rods 9, and the ends of the four second hydraulic rods 9 away from the second hydraulic cylinders 8 are all fixedly installed with L-shaped brackets 6.

[0029] It should be noted that sliding grooves 5 are provided on the upper end surface of the circular disk 4 at positions corresponding to the four L-shaped brackets 6. The sliding grooves 5 are slidably connected to the corresponding L-shaped brackets 6. The telescopic ends of the four second hydraulic cylinders 8 are extended synchronously, and the four second hydraulic rods 9 are extended, so that the L-shaped brackets 6 move outward in all directions in the sliding grooves 5 on the circular disk 4. The space between the four L-shaped brackets 6 and the exhaust end 1 is expanded to facilitate the contact and docking between the air inlet end and the exhaust end 1 of the pneumatic valve to be tested, and then the telescopic end of the first hydraulic cylinder 10 is extended, and the first hydraulic rod 11 is extended, and at the same time, the telescopic end of the second hydraulic cylinder 8 is retracted, and the second hydraulic rod 9 is retracted, so that the L-shaped bracket 6 moves inward in the sliding grooves 5 on the circular disk 4, and the pneumatic valve to be tested is fixed in the space between the four L-shaped brackets 6 and the exhaust end 1.

[0030] Furthermore, the bottom ends of the four L-shaped brackets 6 extend to below the exhaust end 1 , and the inner folded surfaces of the four L-shaped brackets 6 are arranged opposite to each other.

[0031] Furthermore, an elastic sealing pad 2 is sleeved on the outer side of the exhaust end 1. When the elastic sealing pad 2 is subjected to the vertical pressure of the pneumatic valve to be tested, the elastic sealing pad 2 is compressed, thereby making the connection between the pneumatic valve to be tested and the exhaust end 1 tighter and having better sealing performance. The inner sides of the four L-shaped brackets 6 facing the exhaust end 1 are covered with a buffer pad 7.

[0032] The pneumatic valve to be tested is brought into close contact with the elastic sealing pad 2, the exhaust end 1 is docked with the air inlet of the pneumatic valve to be tested, and the bottom of the pneumatic valve to be tested is in contact with the buffer pad 7, so that the elastic sealing pad 2 and the buffer pad 7 are deformed to ensure sealing while avoiding damage to the body of the pneumatic valve to be tested.

[0033] Working principle: When in use, the telescopic ends of the four second hydraulic cylinders 8 are extended synchronously, and the four second hydraulic rods 9 are extended, so that the L-shaped bracket 6 moves outward in the sliding groove 5 on the circular plate 4, so that the space between the four L-shaped brackets 6 and the exhaust end 1 is maximized. At this time, the pneumatic valve to be tested is placed, and the air inlet of the pneumatic valve to be tested is docked with the exhaust end 1, and then the telescopic end of the first hydraulic cylinder 10 is extended, and the first hydraulic rod 11 is extended, and at the same time, the telescopic end of the second hydraulic cylinder 8 is retracted, and the second hydraulic rod 9 is retracted, so that the L-shaped bracket 6 moves inward in the sliding groove 5 on the circular plate 4, and the pneumatic valve to be tested is fixed in the space between the four L-shaped brackets 6 and the exhaust end 1, and at the same time, the pneumatic valve to be tested is docked with the exhaust end 1, and the bottom of the pneumatic valve to be tested is in close contact with the buffer pad 7, so that the elastic sealing pad 2 and the buffer pad 7 are deformed, ensuring sealing while avoiding damage to the body of the pneumatic valve to be tested.

[0034] Connect the exhaust pipe of the air compressor to the air inlet end 3 of the conical base 12, and completely immerse the pneumatic valve to be tested in water. Turn on the air compressor, let the air enter from the air inlet end 3, and be discharged from the exhaust end 1, and observe whether bubbles are generated in the water. If bubbles are observed, the sealing of the pneumatic valve to be tested is unqualified. If no bubbles are generated, the sealing of the pneumatic valve to be tested is qualified.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A pneumatic valve detection device, comprising a first hydraulic cylinder (10), a first hydraulic rod (11) being fixedly mounted at the telescopic end of the first hydraulic cylinder (10), and a circular plate (4) being fixedly mounted at the bottom end of the first hydraulic rod (11), characterized in that: A detection mechanism is provided at the center of the lower end surface of the circular disk (4); The outer surface of the first hydraulic cylinder (10) is provided with a clamping device, the clamping device comprising four second hydraulic cylinders (8), the four second hydraulic cylinders (8) are respectively fixedly mounted around the outer surface of the first hydraulic cylinder (10), the telescopic ends of the four second hydraulic cylinders (8) are all fixedly mounted with second hydraulic rods (9), and the ends of the four second hydraulic rods (9) away from the second hydraulic cylinders (8) are all fixedly mounted with L-shaped brackets (6).

2. A pneumatic valve detection device according to claim 1, characterized in that: The detection mechanism comprises a conical base (12), the conical base (12) is fixedly mounted on the center position of the lower end surface of the circular disk (4), and the bottom end of the conical base (12) is fixedly mounted with an exhaust end (1); The top end of the outer surface of the conical base (12) is fixedly provided with an air inlet end (3), and the air inlet end (3) is internally connected to the exhaust end (1).

3. A pneumatic valve detection device according to claim 1, characterized in that: The upper end surface of the circular plate (4) is provided with sliding grooves (5) at positions corresponding to the four L-shaped brackets (6), and the four sliding grooves (5) are slidably connected to the corresponding four L-shaped brackets (6).

4. A pneumatic valve detection device according to claim 3, characterized in that: The bottom ends of the four L-shaped brackets (6) extend to below the exhaust end (1), and the inner folded surfaces of the four L-shaped brackets (6) are arranged opposite to each other.

5. A pneumatic valve detection device according to claim 2, characterized in that: An elastic sealing pad (2) is sleeved on the outer side of the exhaust end (1).

6. A pneumatic valve detection device according to claim 1, characterized in that: The inner surfaces of the four L-shaped brackets (6) facing the detection mechanism are all covered with buffer pads (7).

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