Pneumatic head sealing performance detection device

Abstract

The utility model discloses a pneumatic head sealing performance detection device which comprises a base, a detection cylinder and a gas connecting pipe. The detection cylinder is vertically installed on the base, the detection cylinder is used for containing air tightness detection liquid, a flexible extrusion part is arranged on the side wall of the detection cylinder, and the flexible extrusion part lifts the liquid level height of the air tightness detection liquid through extrusion; the gas connecting pipe is vertically installed in the detection cylinder, the bottom of the gas connecting pipe is connected with a gas source, and the top of the gas connecting pipe is connected with a pneumatic head to be detected. According to the utility model, the liquid level height of the air tightness detection liquid in the detection cylinder is changed by pressing the flexible extrusion part, so that the air tightness detection liquid reaches the detection position of the pneumatic head, the air tightness is judged according to whether the air tightness detection liquid bubbles, and the air tightness detection result of the pneumatic head can be intuitively and quickly obtained. The device has the characteristics of simple structure and convenient operation.

Description

Technical Field

[0001] The utility model relates to the field of seal detection devices, in particular to a pneumatic head seal detection device. Background Technique

[0002] The actuating mechanism and adjusting mechanism of the pneumatic head are an integrated whole. The actuating mechanism has a diaphragm type, a piston type, and a rack and pinion type. The piston type has a long stroke and is suitable for occasions requiring a large thrust; while the diaphragm type has a smaller stroke and can only directly drive the valve rod. Since the rack and pinion pneumatic actuating mechanism has the advantages of simple structure, large output thrust, stable and reliable operation, and safety and explosion protection, it is widely used in production processes with high safety requirements such as power plants, chemical industries, and oil refineries.

[0003] During the working process of the pneumatic head, the airtightness at the connection position between the pneumatic head and the external air source is particularly important. If the airtightness is not good, it will cause the output of the pneumatic head to be unstable or even unable to work.

[0004] Based on this, there is an urgent need to propose a pneumatic head seal detection device to quickly detect the sealing performance of the pneumatic head. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pneumatic head seal detection device to realize the quick detection of the sealing performance of the pneumatic head.

[0006] To solve the above technical problems, the utility model provides a pneumatic head seal detection device, including a base, a detection cylinder, and a gas connection pipe;

[0007] The detection cylinder is vertically installed on the base. The detection cylinder is used to hold the airtightness detection liquid, and a flexible extrusion part is arranged on the side wall of the detection cylinder. The flexible extrusion part raises the liquid level height of the airtightness detection liquid by extrusion;

[0008] The gas connection pipe is vertically installed inside the detection cylinder. The bottom of the gas connection pipe is connected to the air source, and the top of the gas connection pipe is connected to the pneumatic head to be detected.

[0009] Further, a magnifying part is arranged at the top of the side wall of the detection cylinder. The magnifying part is used to magnify and observe the sealing result of the pneumatic head to be detected.

[0010] Further, a rotating support disk is arranged at the top end of the detection cylinder. The rotating support disk is used to movably support the pneumatic head to be detected, and a connection channel for connecting with the gas connection pipe is opened in the middle of the rotating support disk.

[0011] Further, the rotating support disk includes a mounting seat, a support bearing, and a support table;

[0012] The mounting base is installed at the top end of the detection cylinder;

[0013] The outer ring of the support bearing is inlaid and installed on the mounting base;

[0014] The support platform is fixedly installed on the inner ring of the support bearing.

[0015] Furthermore, the mounting base is in contact and sliding contact with the edge position of the support platform.

[0016] Furthermore, a flexible support pad is arranged on the surface of the support platform.

[0017] Furthermore, one end of the gas connection pipe connected to the pneumatic head to be detected is provided with a connection joint, and the edge of the connection joint has a chamfer structure.

[0018] Furthermore, the bottom end of the gas connection pipe is connected with a gas source connection pipe, and the gas source connection pipe penetrates through the outer side wall of the detection cylinder.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] The utility model changes the liquid level height of the airtightness detection liquid in the detection cylinder by pressing the flexible extrusion part, so that the airtightness detection liquid reaches the detection position of the pneumatic head, and judges the airtightness according to whether the airtightness detection liquid bubbles, and can directly and quickly obtain the airtightness detection result of the pneumatic head, and has the characteristics of simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the pneumatic head airtightness detection device of the utility model;

[0022] Figure 2 is the structural schematic diagram of the rotating support disk of the pneumatic head airtightness detection device of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The pneumatic head airtightness detection device of the utility model will be described in more detail below with reference to the schematic diagrams, in which the preferred embodiments of the utility model are shown. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the beneficial effects of the utility model. Therefore, the following description should be understood as a broad knowledge for those skilled in the art and not as a limitation to the utility model.

[0024] The utility model will be described more specifically by way of example in the following paragraphs with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the utility model.

[0025] As Figure 1 and Figure 2 shown, an embodiment of the utility model provides a pneumatic head airtightness detection device, which includes a base 1, a detection cylinder 2, and a gas connection pipe 3.

[0026] Specifically, the detection cylinder 2 is vertically installed on the base 1. The detection cylinder 2 is used to hold the airtightness detection liquid. A flexible extrusion part 4 is arranged on the side wall of the detection cylinder 2, and the flexible extrusion part 4 raises the liquid level height of the airtightness detection liquid by extrusion.

[0027] The gas connection pipe 3 is vertically installed inside the detection cylinder 2. The bottom of the gas connection pipe 3 is connected to a gas source, and the top of the gas connection pipe 3 is connected to the pneumatic head to be detected.

[0028] When performing the airtightness test of the pneumatic head, the pneumatic head is butted against the top end of the gas connection pipe 3 and rotatably installed. After the connection and installation of the pneumatic head and the gas connection pipe 3 are completed, the gas source is turned on to make the pneumatic head work normally. At this time, the flexible extrusion part 4 is pressed to raise the liquid level height of the airtightness detection liquid located in the detection cylinder 2. When the height of the airtightness detection liquid reaches the connection position between the pneumatic head and the gas connection pipe 3, observe whether the airtightness detection liquid bubbles: when the bubbling phenomenon occurs, the airtightness of the pneumatic head is poor; when the bubbling phenomenon does not occur, the airtightness of the pneumatic head is good. Among them, water can be selected as the airtightness detection liquid.

[0029] In a specific embodiment, a magnifying part 5 is arranged at the top of the side wall of the detection cylinder 2, and the magnifying part 5 is used to magnify and observe the airtightness result of the pneumatic head to be detected. When the bubbles emerging from the connection between the pneumatic head and the gas connection pipe 3 are small and cannot be clearly observed, the detector can observe the magnified bubbles through the magnifying part 5, ensuring the accuracy of the detection result.

[0030] Furthermore, a rotating support disc is arranged at the top end of the detection cylinder 2. The rotating support disc is used to movably support the pneumatic head to be detected, and a connection channel for connecting with the gas connection pipe 3 is opened in the middle of the rotating support disc.

[0031] Specifically, the rotating support disc includes a mounting seat 6, a support bearing 7, and a support platform 8. The mounting seat 6 is installed at the top end of the detection cylinder 2. The outer ring of the support bearing 7 is inlaid and installed on the mounting seat 6. The support platform 8 is fixedly installed on the inner ring of the support bearing 7. The edge positions of the mounting seat 6 and the support platform 8 are in contact and slide against each other.

[0032] In this embodiment, a flexible support pad 9 is provided on the surface of the support platform 8. The flexible support pad 9 has a certain elastic space. When the pneumatic head is connected and installed to the gas connection pipe 3, the pneumatic head is placed on the flexible support pad 9. After the interfaces of the pneumatic head and the gas connection pipe 3 are docked, the pneumatic head is rotated to achieve the rapid installation between the pneumatic head and the gas connection pipe 3. When the pneumatic head is rotationally installed, the support platform 8 provides a movable support surface for the pneumatic head, facilitating the connection and installation between the pneumatic head and the gas connection pipe 3.

[0033] Wherein, the bottom end of the gas connection pipe 3 is connected to a gas source connection pipe 10, and the gas source connection pipe 10 penetrates through the outer wall of the detection cylinder 2 and is connected to a gas source, and the gas source can be an air compressor.

[0034] To more conveniently achieve the connection between the pneumatic head and the gas connection pipe 3, a connection joint 11 is provided at one end of the gas connection pipe 3 connected to the pneumatic head to be detected, and the edge of the connection joint 11 has a chamfer structure.

[0035] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0036] The present utility model changes the liquid level height of the airtightness detection liquid in the detection cylinder by pressing the flexible extrusion part, so that the airtightness detection liquid reaches the detection position of the pneumatic head, and judges the airtightness according to whether the airtightness detection liquid bubbles, and can intuitively and quickly obtain the airtightness detection result of the pneumatic head, and has the characteristics of simple structure and convenient operation.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these changes and modifications.

Claims

1. A pneumatic head sealing performance detection device, characterized in that It includes a base, a detection cylinder, and a gas connection pipe; The detection cylinder is vertically installed on the base. The detection cylinder is used to hold the airtightness detection liquid. A flexible extrusion part is provided on the side wall of the detection cylinder, and the flexible extrusion part raises the liquid level height of the airtightness detection liquid by extrusion; The gas connection pipe is vertically installed inside the detection cylinder. The bottom of the gas connection pipe is connected to a gas source, and the top of the gas connection pipe is connected to the pneumatic head to be detected.

2. The pneumatic head sealing performance detection device according to claim 1, characterized in that A magnifying part is provided at the top of the side wall of the detection cylinder, and the magnifying part is used to magnify and observe the airtightness result of the pneumatic head to be detected.

3. The pneumatic head sealing performance detection device according to claim 1, wherein, A rotating support disk is provided at the top end of the detection cylinder. The rotating support disk is used to movably support the pneumatic head to be detected. A connection channel for connecting to the gas connection pipe is provided in the middle of the rotating support disk.

4. The pneumatic head sealability detection device according to claim 3, wherein The rotating support disk includes a mounting seat, a support bearing, and a support table; The mounting seat is installed at the top end of the detection cylinder; The outer ring of the support bearing is inlaid and installed on the mounting seat; The support table is fixedly installed on the inner ring of the support bearing.

5. The pneumatic head sealability detection device according to claim 4, characterized in that, The edge positions of the mounting seat and the support table are in contact and slide against each other.

6. The pneumatic head seal detection device according to claim 4, characterized in that, A flexible support pad is provided on the surface of the support table.

7. The pneumatic head sealing performance detection device according to claim 1, characterized in that, One end of the gas connection pipe connected to the pneumatic head to be detected is provided with a connection joint, and the edge of the connection joint has a chamfer structure.

8. The pneumatic head sealing performance detection device according to claim 1, wherein, The bottom end of the gas connection pipe is connected to a gas source connection pipe, and the gas source connection pipe penetrates through the outer side wall of the detection cylinder.

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