Valve compression resistance detection device

Abstract

The utility model discloses a valve compression resistance detection device which comprises a water tank, a detection assembly is slidably connected in the water tank, the detection assembly comprises an outer frame and an inner frame, the inner frame is rotatably connected in the outer frame, and a fixed conical sealing seat is integrally formed in the middle position of one side of a frame body of the inner frame. An air hole penetrates through the inner wall of the fixed conical sealing seat, and an air pipe is inserted into the air hole. The two ends of the valve are blocked and pressed through the fixed conical sealing seat and the movable conical sealing seat, the valve is clamped in the inner frame, then the inner frame is rotated through the motor, one end of the valve clamped in the inner frame faces upwards, the other end of the valve faces downwards, the bottom end of the valve is inserted into water, and the top end of the valve is located above the water surface. The air tightness of the two ends of the valve can be detected, the valve clamped in the inner frame is parallel to the surface of the inner frame by turning over the inner frame through the motor, then the valve is completely placed in water, the air tightness and the pressure bearing capacity of the middle part of the valve can be detected, and the detection result is more accurate.

Description

Technical Field

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

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium (temperature, pressure, and flow). According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Therefore, the medium pressure in the pipeline will also be exerted on the valve. Therefore, the pressure resistance and sealing performance of the valve are related to whether the entire conveying pipeline operates normally. When performing a pressure test on a valve, a vertical pressure test device is generally used to directly seal and fix the valve at both ends, and by injecting high-pressure gas into the valve, the valve's pressure resistance and sealing performance are tested.

[0003] Prior art publication number CN220366958U discloses a valve pressure resistance detection device, which relates to the technical field of valve detection equipment, including a water tank, a control box fixedly installed on one side of the water tank, and a cylinder fixedly installed on the other side of the water tank. The cylinder is connected to the air pump in the control box through an air pipe, and the piston rod of the cylinder passes through the sealing ring of the socket on one side of the water tank and extends into the water tank.

[0004] The above-mentioned device drives the clamping mechanism through a cylinder, flips the valve clamped in the clamping mechanism, and puts the entire valve into water to test the overall pressure-bearing capacity and air tightness of the valve. It is impossible to perform segmented testing on the valve body, such as the two ends and the middle part of the valve. The test results are relatively general and not accurate enough. Utility Model Content

[0005] The purpose of the present utility model is to provide a valve pressure resistance detection device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A valve pressure resistance detection device comprises a water tank, in which a detection component is slidably connected, and the detection component comprises an outer frame and an inner frame, the inner frame is rotatably connected to the outer frame, and a fixed conical sealing seat is integrally formed in the middle position of one side of the inner frame body, an air hole is opened through the inner wall of the fixed conical sealing seat, an air pipe is inserted into the air hole, one end of the air pipe is connected to an external air pump, and a sealing ring is provided at the connection between the air pipe and the air hole, a movable conical sealing seat is provided on the side of the inner frame corresponding to the fixed conical sealing seat, and a cylinder is installed on the side of the outer frame corresponding to the movable conical sealing seat, one end of the cylinder piston rod slides through the inner frame and the end of the piston rod is fixedly connected to the movable conical sealing seat.

[0008] As a further solution of the present invention: slide grooves are provided on both sides of the inner wall of the water tank corresponding to the detection component, and sliders are integrally formed on one side of the outer frame corresponding to the multiple slide grooves, and the multiple sliders are respectively slidably connected to the slide grooves on the corresponding side.

[0009] As a further solution of the present invention: a connecting part is integrally formed at the middle position of the water tank body corresponding to one side of the detection component, a slot is provided on the inner wall of the connecting part close to the water tank, a screw rod is rotatably connected in the slot, one end of the screw rod passes through the connecting part and a turntable is fixed to the top of the screw rod, a guide block is integrally formed on the outside of the outer frame on the side corresponding to the slot, the guide block is slidably connected to the slot, and a screw hole is provided on the inner wall of the guide block on the side corresponding to the screw rod, and one end of the screw rod is threadedly connected to the screw hole.

[0010] As a further solution of the present invention: the screw rod is rotationally connected to the inner wall of the top of the connecting part, and a sealing ring is provided at the connection.

[0011] As a further solution of the present invention: a motor is installed on one side of the outer portion of the outer frame, and one end of the motor output shaft is fixedly connected to one end of the inner frame rotating shaft.

[0012] As a further solution of the present invention: the movable conical sealing seat and the fixed conical sealing seat are symmetrically arranged, and the shapes of the movable conical sealing seat and the fixed conical sealing seat are both adapted to the shape of the valve port.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, one end of the valve is blocked by a fixed conical sealing seat, and then the movable conical sealing seat is pushed to the other end of the valve by a cylinder to block and press the port, so that the valve can be clamped and fixed in the inner frame. The inner frame is then rotated by a motor so that one end of the valve clamped in the inner frame faces upward and the other end faces downward, so that the bottom end of the valve is inserted into the water and the top end is above the water surface. The air pipe and the external air pump are used to continuously pump air into the valve to increase the pressure. It is observed whether bubbles are generated on the water surface at this time. If bubbles are generated, it means that there are cracks on the valve body that is immersed in the water or that the pressure bearing capacity is insufficient. If there are no bubbles, it means that the quality meets the standards.

[0015] Furthermore, the inner frame is flipped by the motor so that the valve clamped in the inner frame is parallel to the surface of the inner frame. The valve is then completely placed in water. The air pipe and the external air pump are used to continuously pump air into the valve to increase pressure. It is observed whether bubbles are generated on the water surface at this time. If bubbles are present, it means that there is a crack in the middle part of the valve or the crack is caused by insufficient pressure bearing capacity. If there are no bubbles, it means that the quality meets the standards. The two detection methods are used in combination to facilitate segmented detection of the valve, and the detection results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the water tank in the utility model.

[0019] Figure 3 It is a side view of the cross-sectional structure of the water tank in the utility model.

[0020] Figure 4 It is a structural diagram of the detection component in the utility model.

[0021] Notes on the figure numbers: 1-water tank, 2-connecting part, 3-turntable, 4-detection component, 41-outer frame, 42-motor, 43-slider, 44-guide block, 45-screw hole, 46-inner frame, 47-fixed conical sealing seat, 48-trachea, 49-air hole, 410-cylinder, 411-movable conical sealing seat, 5-slide groove, 6-slot, 7-screw. DETAILED DESCRIPTION

[0022] The following embodiments will be described in detail with reference to the accompanying drawings. Similar or identical parts are denoted by the same reference numerals in the drawings and descriptions. In actual applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in the present invention are intended only to illustrate the present invention and are not intended to limit its scope. Any obvious modifications or variations to the present invention do not depart from the spirit and scope of the present invention.

[0023] Example 1

[0024] See also Figures 1 to 3In an embodiment of the present utility model, a valve pressure resistance detection device includes a water tank 1, and a detection component 4 is slidably connected in the water tank 1. The detection component 4 is used to clamp the valve and place the valve into the water tank for pressure and air tightness detection. Slide grooves 5 are provided on both sides of the inner wall of the water tank 1 corresponding to the detection component 4. A connecting part 2 is integrally formed in the middle position of the water tank 1 corresponding to one side of the detection component 4. A slot 6 is provided on the inner wall of the connecting part 2 on the side close to the water tank 1. A screw rod 7 is rotatably connected in the slot 6. One end of the screw rod 7 passes through the connecting part 2 and a turntable 3 is fixed to the top of the screw rod 7. The screw rod 7 is rotatably connected to the inner wall of the top of the connecting part 2 and a sealing ring is provided at the connection. The screw rod 7 can be rotated by the turntable 3.

[0025] Example 2

[0026] See also Figure 4 On the basis of Example 1, the detection component 4 includes an outer frame 41 and an inner frame 46, the inner frame 46 is rotatably connected to the outer frame 41, and a slider 43 is integrally formed on one side of the outer frame 41 corresponding to the multiple slide grooves 5. The multiple sliders 43 are respectively slidably connected to the slide grooves 5 on the corresponding side, and a guide block 44 is integrally formed on one side of the outer frame 41 corresponding to the slot 6. The guide block 44 is slidably connected to the slot 6, and a screw hole 45 is provided on the inner wall of the guide block 44 corresponding to the side of the screw rod 7. One end of the screw rod 7 is threadedly connected to the screw hole 45. When the screw rod 7 rotates, it can drive the guide block 44 to slide up and down in the slot 6, thereby driving the outer frame and the inner frame to move up and down in the water tank, so as to facilitate the valve clamped in the inner frame to be placed in the water of the water tank for detection. A motor 42 is installed on one side of the outer frame 41, and one end of the output shaft of the motor 42 is fixedly connected to one end of the rotating shaft of the inner frame 46. Starting the motor 42 can rotate the inner frame to adjust the direction of the valve clamped in the inner frame.

[0027] A fixed conical sealing seat 47 is integrally formed in the middle position of one side of the inner frame 46. An air hole 49 is opened through the inner wall of the fixed conical sealing seat 47. An air pipe 48 is inserted into the air hole 49. One end of the air pipe 48 is connected to an external air pump. A sealing ring is provided at the connection between the air pipe 48 and the air hole 49 to prevent air leakage. A movable conical sealing seat 411 is provided on one side of the inner frame 46 corresponding to the fixed conical sealing seat 47. The movable conical sealing seat 411 and the fixed conical sealing seat 47 are symmetrically arranged, and the shapes of the movable conical sealing seat 411 and the fixed conical sealing seat 47 are adapted to the shape of the valve port. The valve is placed between the two sealing seats, and the two ends of the valve are respectively connected by the fixed conical sealing seat 47 and the movable conical sealing seat 411. The movable conical sealing seat 411 is blocked, and a cylinder 410 is installed on the side of the outer side of the inner frame 46 corresponding to the movable conical sealing seat 411. One end of the piston rod of the cylinder 410 slides through the inner frame 46 and the end of the piston rod is fixedly connected to the movable conical sealing seat 411. The movable conical sealing seat 411 is driven by the cylinder 410 to move toward the side close to the fixed conical sealing seat 47, so that it blocks one end of the valve and clamps the valve in the inner frame. After clamping, the placement direction of the valve is cross-intersected with the rotation direction of the inner frame. When the inner frame rotates, one end of the valve deflects to one side. At this time, one end of the valve is tilted upward and the other end hangs downward. Then it is slowly placed in water, and one end of the valve is tested for pressure and air tightness.

[0028] Working principle:

[0029] When using this device, one end of the valve is first placed on the fixed conical sealing seat 47 to seal one end of the valve. Then, the movable conical sealing seat 411 is pushed to the other end of the valve by the cylinder 49 to seal and tighten this port, so that the valve can be clamped and fixed in the inner frame 46. After the valve is clamped and fixed, the valve can be tested for pressure and air tightness. The specific testing method is divided into two steps:

[0030] The first step is to inspect both ends of the valve. Start the motor 42 to rotate the inner frame 46 so that one end of the valve clamped in the inner frame 46 faces upward and the other end faces downward. Then rotate the turntable 3 and put the inner frame and the valve clamped in the inner frame into the water in the sink through the cooperation with the screw rod 7, the guide block 44 and the slider 43. The bottom end of the valve is inserted into the water and the top end is above the water surface. The air is continuously pumped into the valve through the cooperation of the air pipe 48 and the external air pump to pressurize it. Observe whether bubbles are generated on the water surface at this time. If bubbles are generated, it means that there are cracks on the valve body that is immersed in the water or that the pressure bearing capacity is insufficient. If there are no bubbles, it means that the quality meets the standards. When inspecting the other end of the valve, the inner frame can be flipped over again by the motor. The specific inspection method is the same as above.

[0031] The second step is to inspect the middle part of the valve. The inner frame is flipped by the motor so that the valve clamped in the inner frame is parallel to the surface of the inner frame. The turntable 3 is then rotated and the inner frame and the valve clamped in the inner frame are placed into the water in the water tank through the cooperation with the screw rod 7, the guide block 44 and the slider 43, so that the valve is completely submerged in the water. The air is continuously pumped into the valve to increase the pressure through the cooperation of the air pipe 48 and the external air pump. Observe whether bubbles are generated on the water surface at this time. If bubbles are present, it means that there are cracks in the middle part of the valve or the pressure bearing capacity is insufficient to cause cracks. If there are no bubbles, it means that the quality meets the standards.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A valve pressure resistance detection device, comprising a water tank (1), characterized in that: A detection assembly (4) is slidably connected in the water tank (1), and the detection assembly (4) includes an outer frame (41) and an inner frame (46). The inner frame (46) is rotatably connected to the outer frame (41). A fixed conical sealing seat (47) is integrally formed in the middle position of one side of the inner frame (46). An air hole (49) is opened through the inner wall of the fixed conical sealing seat (47). An air pipe (48) is inserted into the air hole (49). One end of the air pipe (48) is connected to an external air pipe. The air pump is connected to the air pipe (48), a sealing ring is provided at the connection between the air pipe (48) and the air hole (49), a movable conical sealing seat (411) is provided on the side of the inner frame (46) corresponding to the fixed conical sealing seat (47), and a cylinder (410) is installed on the side of the outer frame (46) corresponding to the movable conical sealing seat (411), one end of the piston rod of the cylinder (410) slides through the inner frame (46) and the end of the piston rod is fixedly connected to the movable conical sealing seat (411).

2. The valve pressure resistance detection device according to claim 1, characterized in that: Slide grooves (5) are provided on both sides of the inner wall of the water tank (1) corresponding to the detection component (4), and sliders (43) are integrally formed on one side of the outer frame (41) corresponding to the plurality of slide grooves (5), and the plurality of sliders (43) are respectively slidably connected to the slide grooves (5) on the corresponding side.

3. The valve pressure resistance detection device according to claim 2, characterized in that: The water tank (1) is integrally formed with a connecting portion (2) at a middle position on one side of the detection component (4), and a slot (6) is provided on the inner wall of the connecting portion (2) close to the water tank (1). A screw rod (7) is rotatably connected in the slot (6), one end of the screw rod (7) passes through the connecting portion (2) and a turntable (3) is fixed to the top of the screw rod (7). A guide block (44) is integrally formed on the outside of the outer frame (41) on one side corresponding to the slot (6), and the guide block (44) is slidably connected to the slot (6), and a screw hole (45) is provided on the inner wall of the guide block (44) on one side corresponding to the screw rod (7), and one end of the screw rod (7) is threadedly connected to the screw hole (45).

4. The valve pressure resistance detection device according to claim 3, characterized in that: The screw rod (7) is rotationally connected to the inner wall of the top of the connecting portion (2), and a sealing ring is provided at the connection.

5. The valve pressure resistance detection device according to claim 1 or 4, characterized in that: A motor (42) is installed on one side of the outer portion of the outer frame (41), and one end of the output shaft of the motor (42) is fixedly connected to one end of the rotating shaft of the inner frame (46).

6. The valve pressure resistance detection device according to claim 5, characterized in that: The movable conical sealing seat (411) and the fixed conical sealing seat (47) are symmetrically arranged, and the shapes of the movable conical sealing seat (411) and the fixed conical sealing seat (47) are both adapted to the shape of the valve port.

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