Valve body air tightness monitoring equipment

Abstract

The utility model discloses valve body air tightness monitoring equipment, which relates to the technical field of valve body air tightness monitoring, and comprises a valve body and a base, the upper part of the base is connected with a movable frame in a sliding manner, one side of the movable frame is fixedly connected with a top block, the outer side of the top block is provided with an air bag, the outer side of the air bag is in contact with the end part of the valve body, and the air bag is provided with an air inlet. And a conveying pipe is arranged in the top block, a connecting pipe is fixedly connected to one side of the conveying pipe, one end of the connecting pipe communicates with the air bag, and a connector is fixedly connected to one side of the conveying pipe. Through the arrangement of the air bag, the connecting pipe, the transmission pipe, the connector, the first air pipe and the first air pump, the effect of inflating the air bag is achieved, through the matched arrangement of the sealing ring and the air bag, the end of the valve body can be sealed in the using process, and therefore the effect of preventing air leakage is achieved, and the purpose of improving the sealing performance of the clamp is achieved.

Description

Technical Field

[0001] This utility model relates to the field of valve body airtightness monitoring technology, specifically a valve body airtightness monitoring device. Background Technology

[0002] Valve body airtightness testing refers to the testing process of evaluating the sealing performance of valves (such as ball valves and gate valves) by filling them with compressed gas (such as air or nitrogen) and monitoring pressure changes or leakage flow. Its core objective is to detect whether leakage occurs in the valve body under a specified pressure, ensuring that the valve can effectively block the flow of media in actual operating conditions. Commonly used methods include differential pressure method (static pressure holding and pressure drop measurement), flow rate method (dynamic leakage measurement), or bubble method (underwater observation of leak points), and are widely used in quality control and safety certification in industries such as petroleum, chemical, and water supply.

[0003] Currently, existing valve body airtightness monitoring equipment typically involves filling the valve body with gas and detecting the continuous internal pressure or airflow. However, traditional clamps often use a planar clamping structure to seal and fix the valve body at both ends. Since the valve body's two ends have different interface types (such as threads, flanges, or quick-connect fittings), the planar clamps are difficult to adapt to irregularly shaped end faces, resulting in poor sealing performance, leakage problems, and reduced detection accuracy. Furthermore, the clamps require manual handling to align the valve body with the clamp and adjust the clamping, which is cumbersome, inefficient, and time-consuming in large-scale testing, failing to meet the demands of high-efficiency production and hindering convenient valve body fixation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a valve body airtightness monitoring device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a valve body and a base, a movable frame is slidably connected to the upper part of the base, a top block is fixedly connected to one side of the movable frame, an airbag is provided on the outer side of the top block, and the outer side of the airbag contacts the end of the valve body;

[0008] The top block has a transmission pipe inside, and a connecting pipe is fixedly connected to one side of the transmission pipe. One end of the connecting pipe is connected to the airbag. A connector is fixedly connected to one side of the transmission pipe, and a first air tube is inserted into the outside of the connector. A first air pump is fixedly connected to one end of the first air tube.

[0009] The lower part of the valve body contacts the support roller. One end of the support roller is fixedly connected to a movable frame. A support plate is slidably connected inside the movable frame. A locking bolt is threadedly connected to one side of the movable frame. One end of the locking bolt supports the support plate.

[0010] Optionally, the top block is conical, the connecting pipes are arranged in a ring array, the connecting pipes and the connectors are located inside the top block, and a base is fixedly connected to one side of the first air pump.

[0011] Optionally, one of the two top blocks has an air outlet pipe in the middle, one end of which is connected to a second air pipe, one end of which is fixedly connected to a second air pump, and one side of the second air pump is fixedly connected to a base.

[0012] Optionally, a sealing ring is fixedly connected to the outer side of the top block, the outer side of the sealing ring is in contact with the movable frame, and the sealing ring is located in the middle of the movable frame and the airbag.

[0013] Optionally, a dual-axis servo motor is fixedly connected inside the base. One end of the dual-axis servo motor is keyed to a reciprocating screw, and a movable frame is threaded to one side of the reciprocating screw.

[0014] Optionally, the lower part of the support plate is fixedly connected to the movable end of the electric telescopic rod, and a base is fixedly connected to one side of the fixed end of the electric telescopic rod. The electric telescopic rod is distributed in a linear array.

[0015] This utility model provides a valve body airtightness monitoring device, which has the following beneficial effects:

[0016] 1. The valve body airtightness monitoring device, through the setting of airbag, connecting pipe, transmission pipe, connector, first air pipe and first air pump, has the effect of inflating airbag. Through the cooperation of sealing ring and airbag, the valve body end can be sealed during use, thereby preventing air leakage and achieving the purpose of increasing the sealing performance of clamp.

[0017] 2. This valve body airtightness monitoring device, through the setting of movable frame, support rollers, and locking bolts, has the effect of adjusting the spacing of support rollers. Through the cooperation of electric telescopic rod and support plate, the position and height of support rollers can be adjusted during use, thereby achieving the function of aligning the valve body center axis with the center axis of the top block, and achieving the purpose of conveniently fixing the valve body. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a structural schematic diagram of a three-dimensional cross-section of the present invention;

[0020] Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle;

[0021] Figure 4 This is a structural schematic diagram of the second three-dimensional cross-section of the present invention;

[0022] Figure 5 This is a structural schematic diagram of the cross-section of the support roller of this utility model.

[0023] In the diagram: 1. Base; 2. First air pump; 3. Second air pump; 4. First air pipe; 5. Second air pipe; 6. Sealing ring; 7. Airbag; 8. Support plate; 9. Support roller; 10. Valve body; 11. Movable frame; 12. Locking bolt; 13. Electric telescopic rod; 14. Moving frame; 15. Connector; 18. Dual-axis servo motor; 19. Top block; 20. Transmission pipe; 21. Reciprocating screw; 23. Connecting pipe; 24. Air outlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example

[0026] Please see Figures 1 to 5 The present invention provides a technical solution including a valve body 10 and a base 1. A movable frame 14 is slidably connected to the upper part of the base 1. A top block 19 is fixedly connected to one side of the movable frame 14. An air bladder 7 is provided on the outer side of the top block 19. The outer side of the air bladder 7 contacts the end of the valve body 10.

[0027] Specifically, a pressure gauge is installed on the upper part of the valve body 10, the air bladder 7 covers the top block 19, and a replaceable flexible sealing gasket is added to the surface of the air bladder 7.

[0028] The top block 19 has a transmission pipe 20 inside. A connecting pipe 23 is fixedly connected to one side of the transmission pipe 20. One end of the connecting pipe 23 is connected to the airbag 7. A connector 15 is fixedly connected to one side of the transmission pipe 20. A first air pipe 4 is inserted into the outside of the connector 15. A first air pump 2 is fixedly connected to one end of the first air pipe 4.

[0029] Specifically, the transmission pipe 20 is ring-shaped, and the first air pump 2 is controlled by an external control device to start, stop and supply power.

[0030] The lower part of the valve body 10 contacts the support roller 9. One end of the support roller 9 is fixedly connected to a movable frame 11. A support plate 8 is slidably connected inside the movable frame 11. A locking bolt 12 is threadedly connected to one side of the movable frame 11. One end of the locking bolt 12 supports the support plate 8.

[0031] Please refer to Figure 1 to Figure 3 The top block 19 is conical, the connecting pipes 23 are arranged in a ring array, the connecting pipes 23 and the connector 15 are located inside the top block 19, and the base 1 is fixedly connected to one side of the first air pump 2.

[0032] Specifically, the airbag 7 fits tightly against the conical top block 19.

[0033] Please refer to Figure 1 to Figure 3 One of the two top blocks 19 has an air outlet pipe 24 in the middle. One end of the air outlet pipe 24 is connected to a second air pipe 5. One end of the second air pipe 5 is fixedly connected to a second air pump 3. One side of the second air pump 3 is fixedly connected to a base 1.

[0034] Specifically, the air outlet pipe 24 passes through the top block 19, and the second air pump 3 is connected to the external control device.

[0035] Please refer to Figure 1 to Figure 3 A sealing ring 6 is fixedly connected to the outer side of the top block 19. The outer side of the sealing ring 6 contacts the movable frame 14. The sealing ring 6 is located in the middle of the movable frame 14 and the airbag 7.

[0036] Please refer to Figure 2. A dual-axis servo motor 18 is fixedly connected inside the base 1. One end of the dual-axis servo motor 18 is keyed to a reciprocating screw 21. A moving frame 14 is threadedly connected to one side of the reciprocating screw 21.

[0037] Specifically, the end of the reciprocating screw 21 away from the dual-axis servo motor 18 is rotatably connected to the base 1. The lower part of the dual-axis servo motor 18 is provided with a heat dissipation and wire routing port. The threads of the two reciprocating screws 21 at both ends of the dual-axis servo motor 18 are oriented in opposite directions.

[0038] Please refer to Figure 1. Figure 2 , Figure 4 , Figure 5 The lower part of the support plate 8 is fixedly connected to the movable end of the electric telescopic rod 13, and the fixed end of the electric telescopic rod 13 is fixedly connected to one side of the base 1. The electric telescopic rod 13 is distributed in a linear array.

[0039] Specifically, multiple electric telescopic poles 13 are controlled by a single circuit, and multiple electric telescopic poles 13 can start and stop simultaneously.

[0040] During use, the dual-axis servo motor 18 is started via an external control device, causing the reciprocating screw 21 to drive the moving frame 14 to move towards the center, so that the top block 19 is inserted into both ends of the valve body 10 until the valve body 10 is clamped. The first air pump 2 is started, and air is transmitted to the inside of the transmission pipe 20 through the first air pipe 4 and the connector 15, and then transmitted to the airbag 7 through the connecting pipe 23, causing the airbag 7 to inflate. Through the arrangement of the airbag 7, connecting pipe 23, transmission pipe 20, connector 15, first air pipe 4, and first air pump 2, the airbag 7 is inflated. The inflated airbag 7 fills the gap between the top block 19 and the valve body 10, and the sealing ring 6 seals the larger valve body 10 multiple times. Through the cooperation of the sealing ring 6 and the airbag 7, the end of the valve body 10 can be sealed during use, thereby preventing air leakage and increasing the sealing performance of the clamp.

[0041] Based on the diameter of the valve body 10, the movable frame 11 is moved left and right on the support plate 8, causing the support rollers 9 to move and thus adjusting the distance between the two support rollers 9. This ensures that the support rollers 9 provide stable support for the valve body 10. The movable frame 11 is then fixed with locking bolts 12. After the position of the support rollers 9 is fixed, for large-scale monitoring, the valve body 10 is placed on the support rollers 9 for monitoring. After monitoring, the valve body 10 can be replaced without readjusting the distance between the support rollers 9. The movable frame 11, support rollers 9, and locking bolts 12 together achieve the effect of adjusting the distance between the support rollers 9. The electric telescopic rod 13 then drives the support rollers 9 to move. The support plate 8 is raised and lowered, causing the support roller 9 to move up and down, and its position is readjusted to make the support range larger. Through the cooperation of the electric telescopic rod 13 and the support plate 8, the position and height of the support roller 9 can be adjusted during use, so that the central axis of the valve body 10 corresponds to the central axis of the top block 19, achieving the purpose of conveniently fixing the valve body 10. After the support is completed, the clamp holds the valve body 10, and the second air pump 3 is started. Air is delivered to the air outlet pipe 24 through the second air pipe 5, and then transmitted to the valve body 10. The pressure gauge installed on the valve body 10 is used to monitor whether there is air leakage.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve body airtightness monitoring device, comprising a valve body (10) and a base (1), characterized in that: A movable frame (14) is slidably connected to the upper part of the base (1), and a top block (19) is fixedly connected to one side of the movable frame (14). An airbag (7) is provided on the outer side of the top block (19), and the outer side of the airbag (7) contacts the end of the valve body (10). The top block (19) has a transmission pipe (20) inside. A connecting pipe (23) is fixedly connected to one side of the transmission pipe (20). One end of the connecting pipe (23) is connected to the airbag (7). A connector (15) is fixedly connected to one side of the transmission pipe (20). A first air tube (4) is inserted into the outside of the connector (15). A first air pump (2) is fixedly connected to one end of the first air tube (4). The lower part of the valve body (10) is in contact with the support roller (9). One end of the support roller (9) is fixedly connected to a movable frame (11). The movable frame (11) is slidably connected to a support plate (8). A locking bolt (12) is threadedly connected to one side of the movable frame (11). One end of the locking bolt (12) supports the support plate (8).

2. The valve body airtightness monitoring device according to claim 1, characterized in that: The top block (19) is conical, the connecting pipe (23) is arranged in a ring array, the connecting pipe (23) and the connector (15) are located inside the top block (19), and the base (1) is fixedly connected to one side of the first air pump (2).

3. The valve body airtightness monitoring device according to claim 1, characterized in that: One of the two top blocks (19) has an air outlet pipe (24) in the middle. One end of the air outlet pipe (24) is connected to a second air pipe (5). One end of the second air pipe (5) is fixedly connected to a second air pump (3). One side of the second air pump (3) is fixedly connected to a base (1).

4. The valve body airtightness monitoring device according to claim 1, characterized in that: A sealing ring (6) is fixedly connected to the outer side of the top block (19). The outer side of the sealing ring (6) contacts the movable frame (14). The sealing ring (6) is located in the middle of the movable frame (14) and the airbag (7).

5. The valve body airtightness monitoring device according to claim 1, characterized in that: A dual-axis servo motor (18) is fixedly connected inside the base (1). One end of the dual-axis servo motor (18) is connected to a reciprocating screw (21) via a key. A moving frame (14) is threaded onto one side of the reciprocating screw (21).

6. The valve body airtightness monitoring device according to claim 1, characterized in that: The lower part of the support plate (8) is fixedly connected to the movable end of the electric telescopic rod (13), and the fixed end of the electric telescopic rod (13) is fixedly connected to one side of the base (1). The electric telescopic rod (13) is distributed in a linear array.

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