Tubular inner wall airtight plugging device
By adopting the pneumatic structure and expansion sealing ring design in the sealing device, the high labor cost and safety risks caused by mechanical actions are solved, and a more efficient and safe sealing effect is achieved, which is suitable for a variety of testing needs.
Patent Information
- Application Number
- CN202323502737.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The existing sealing devices rely on mechanical action, resulting in high labor costs and operational safety risks, and are difficult to compatible with multiple testing needs.
设计一种管型内壁气密性封堵装置，采用气动结构和较少的机械零件，通过膨胀密封圈实现密封效果，并根据被测物体的孔径调整密封圈大小以适应不同需求。
The pneumatic drive reduces personnel investment, reduces operating risks, and improves the applicability and safety of the device, which is compatible with more testing needs.
Smart Images
Figure CN222255028U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of plugging test, in particular to a tubular inner wall airtight plugging device. [Background technology]
[0002] The existing plugging devices generally use mechanical action and a straight tube with a large inner hole size. The test head of the device is pushed into the test object, and the handle is squeezed to make the mechanical claws move, and the sealing ring is opened to achieve the sealing effect. However, mechanical action plugging requires a lot of manpower costs and poses certain safety risks to operators. [Utility Model Content]
[0003] In order to overcome the above problems, the utility model proposes a tubular inner wall airtight sealing device which can effectively solve the above problems.
[0004] The utility model provides a technical solution to solve the above technical problems: providing a tubular inner wall airtight sealing device, comprising a cylinder body, a cylinder locking block, a central valve body, a clamping cap, a locking screw, an expansion sealing ring and a plurality of O-rings; the cylinder body, the cylinder locking block and the central valve body are respectively provided with O-rings, the cylinder body and the cylinder locking block are threadedly connected, an air chamber is formed between the cylinder body and the cylinder locking block, the central valve body is arranged in the air chamber, one end of the central valve body extends out from one end of the cylinder locking block, a clamping cap is provided at the end of the central valve body extending out from the cylinder locking block, an expansion sealing ring is provided between the clamping cap and the cylinder locking block, the expansion sealing ring surrounds the periphery of the end of the central valve body, and the clamping cap is locked to the end of the central valve body by a locking screw; an air inlet is opened on the side of the cylinder body, and the air inlet is communicated with the air chamber.
[0005] Preferably, one end of the cylinder locking block is in the shape of a round rod, and the expansion sealing ring is located at the round rod-shaped end of the cylinder locking block.
[0006] Preferably, an air outlet is opened on the side of the cylinder body, and the air outlet is communicated with the air chamber.
[0007] Preferably, a testing instrument interface is provided at the end of the cylinder body, and the testing instrument interface is communicated with the air chamber.
[0008] Compared with the prior art, the tubular inner wall airtight sealing device of the utility model achieves the sealing effect through a simple pneumatic structure and fewer mechanical parts. The size of the expansion sealing ring can also be adjusted according to the aperture of the object to be tested to be compatible with more such series of test requirements. Compared with the mechanical action sealing structure, the pneumatic drive method can reduce the personnel input in the working environment, and in a certain sense reduces the risk of personnel injury.
Brief Description of the Drawings
[0009] Figure 1 It is a cross-sectional view of the tubular inner wall airtight sealing device of the utility model. [Specific implementation method]
[0010] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0011] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are limited to relative positions on a specified view, rather than absolute positions.
[0012] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0013] See also Figure 1 The tubular inner wall airtight sealing device of the utility model can be applied to the sealing test of all objects with cylindrical inner cavities, and includes a cylinder body 1, a cylinder body locking block 2, a central valve body 3, a clamping cap 4, a locking screw 5, an expansion sealing ring 6 and a plurality of O-rings 7.
[0014] The cylinder body 1, the cylinder locking block 2 and the center valve body 3 are respectively provided with O-rings 7, the cylinder body 1 and the cylinder locking block 2 are threadedly connected, an air chamber is formed between the cylinder body 1 and the cylinder locking block 2, the center valve body 3 is arranged in the air chamber, one end of the center valve body 3 extends out from one end of the cylinder locking block 2, and a clamping cap 4 is provided on the end of the center valve body 3 extending out from the cylinder locking block 2, an expansion sealing ring 6 is provided between the clamping cap 4 and the cylinder locking block 2, the expansion sealing ring 6 surrounds the end of the center valve body 3, and the clamping cap 4 is locked to the end of the center valve body 3 by a locking screw 5.
[0015] An air inlet 8 is provided on the side of the cylinder body 1 and is communicated with the air chamber for air intake driving.
[0016] The tubular inner wall airtight plugging device of the utility model is a pneumatic device, which mainly achieves the sealing effect by expanding and deforming the expansion sealing ring 6. When working, the atmosphere enters the air chamber of the cylinder body 1 through the air inlet 8 to drive the central valve body 3, and the central valve body 3 moves to drive the clamping cap 4 to press against the expansion sealing ring 6, so that the expansion sealing ring 6 expands and deforms, thereby sealing the object to be measured.
[0017] One end of the cylinder locking block 2 is in the shape of a round rod, and the expansion sealing ring 6 is located at the round rod-shaped end of the cylinder locking block 2. The round rod shape facilitates insertion into a test object with a small entrance and a stepped shape for sealing.
[0018] The tubular inner wall airtight sealing device of the utility model achieves the sealing effect through a simple pneumatic structure and fewer mechanical parts. The size of the expansion sealing ring 6 can also be adjusted according to the aperture of the object to be tested to be compatible with more such series of test requirements. Compared with the sealing structure with mechanical action, the utility model adopts a pneumatic method to reduce the input of personnel in the working environment, and in a certain sense reduces the risk of personnel injury.
[0019] The cylinder body 1 is provided with an air outlet 9 on its side, and the air outlet 9 is communicated with the air chamber for exhausting air.
[0020] A testing instrument interface 10 is provided at the end of the cylinder body 1 , and the testing instrument interface 10 is communicated with the air chamber and is used for connecting a testing instrument.
[0021] Compared with the prior art, the tubular inner wall airtight sealing device of the utility model achieves the sealing effect through a simple pneumatic structure and fewer mechanical parts. The size of the expansion sealing ring 6 can also be adjusted according to the aperture of the object to be tested to be compatible with more such series of test requirements. Compared with the mechanical sealing structure, the pneumatic drive method can reduce the personnel input in the working environment, and in a certain sense reduces the risk of personnel injury.
[0022] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.
Claims
1. A tubular inner wall airtight sealing device, characterized in that: It includes a cylinder body, a cylinder body locking block, a center valve body, a clamping cap, a locking screw, an expansion sealing ring and a plurality of O-rings; The cylinder body, the cylinder body locking block and the center valve body are respectively provided with O-rings, the cylinder body and the cylinder body locking block are threadedly connected, an air chamber is formed between the cylinder body and the cylinder body locking block, the center valve body is arranged in the air chamber, one end of the center valve body extends out from one end of the cylinder body locking block, and a clamping cap is arranged at the end of the center valve body extending out from the cylinder body locking block, an expansion sealing ring is arranged between the clamping cap and the cylinder body locking block, the expansion sealing ring surrounds the periphery of the end of the center valve body, and the clamping cap is locked to the end of the center valve body by a locking screw; An air inlet is provided on the side of the cylinder body, and the air inlet is communicated with the air chamber.
2. The tubular inner wall airtight sealing device according to claim 1, characterized in that: One end of the cylinder locking block is in the shape of a round rod, and the expansion sealing ring is located at the round rod-shaped end of the cylinder locking block.
3. The tubular inner wall airtight sealing device according to claim 1, characterized in that: An air outlet is provided on the side of the cylinder body, and the air outlet is communicated with the air chamber.
4. The tubular inner wall airtight sealing device according to claim 1, characterized in that: A testing instrument interface is provided at the end of the cylinder body, and the testing instrument interface is communicated with the air chamber.