Quick fixing device for air source pipe of pneumatic actuator

By designing the limiting and fixing components and mating parts, the problem of low fixing efficiency of the air source pipe of the pneumatic actuator is solved, realizing fast and reliable connection and improving the stability and operation and maintenance efficiency of the system.

CN223708864UActive Publication Date: 2025-12-23WUXI CHENGTIANNUO ACTUATOR MFG CO LTD
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Patent Information

Application Number
CN202520445449.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-12-23
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

The existing method of fixing the air supply pipe of pneumatic actuators is inefficient and susceptible to environmental corrosion, resulting in insufficient system reliability and operation and maintenance efficiency.

Method used

The design employs a limit fixing component and mating parts, using a combination of sliding sleeve and fastening sleeve to achieve rapid and reliable fixing of the air source pipe and the pneumatic actuator connecting pipe.

Benefits of technology

It enables rapid and reliable connection of the gas supply pipe, improves system stability and installation efficiency, and reduces the impact of environmental erosion.

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Abstract

The utility model discloses a quick fixing device for an air source pipe of a pneumatic actuator, which belongs to the technical field of pneumatic actuators and comprises an air source pipe body, a quick connecting component and a sliding sleeve arranged on the outer side of the air source pipe body, the quick connecting component comprises a fastening sleeve arranged at one end of the sliding sleeve, and the fastening sleeve is connected to the outer side of the air source pipe body. The air source pipe comprises an air source pipe body, a sliding sleeve is arranged on the air source pipe body, a limiting and fixing assembly is arranged at the front end of the air source pipe body, a connecting piece and a pneumatic actuator connecting pipe are arranged between the air source pipe body and the sliding sleeve, and a matching piece used for being matched with the limiting and fixing assembly is arranged on the outer side of the pneumatic actuator connecting pipe. The limiting plates are inserted into the air source pipe body, then the sliding sleeve is loosened, the limiting ball can be pushed into the clamping groove between the two limiting plates, the fixing effect can be achieved, and the air source pipe has the advantages of being convenient to operate and good in fixing effect.
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Description

Technical Field

[0001] This utility model belongs to the field of pneumatic actuator technology, and in particular, it is a quick fixing device for the air source pipe of a pneumatic actuator. Background Technology

[0002] A pneumatic actuator is a device that uses compressed air as a power source to convert pneumatic pressure energy into mechanical motion. It is widely used in industrial automation to control the opening and closing or position adjustment of equipment such as valves, robotic arms, and conveying devices. The pneumatic actuator air supply pipe is a dedicated pipeline connecting the pneumatic actuator to an external compressed air system, responsible for safely and stably transmitting compressed air to the actuator's interior, providing it with a power source.

[0003] In practical applications of pneumatic actuators, the air supply pipe, as the core channel for compressed air transmission, directly affects the actuator's response speed and system stability due to its connection reliability. Currently, the industry commonly uses threaded connections or bolt fastening methods to fix the air supply pipe, mechanically locking the air supply pipe connector to the actuator interface with bolts. Although this method can meet basic sealing requirements under certain conditions, its inherent defects have gradually become apparent over long-term use, specifically: low installation efficiency and susceptibility to environmental corrosion. Therefore, developing a tool-free, environmentally resistant, and widely compatible quick-fixing device for air supply pipes has become a key technical requirement for improving the reliability and maintenance efficiency of pneumatic systems.

[0004] The purpose of this invention is to provide a quick fixing device for the air supply pipe of a pneumatic actuator, so as to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a quick fixing device for the air supply pipe of a pneumatic actuator, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-fixing device for the air supply pipe of a pneumatic actuator, comprising...

[0007] Gas source pipe body;

[0008] A quick-connect component is provided on the outside of the gas source pipe body. The quick-connect component includes a sliding sleeve provided on the outside of the gas source pipe body. A fastening sleeve is provided at one end of the sliding sleeve. A limit fixing component is provided at the front end of the gas source pipe body. A connector is provided between the gas source pipe body and the sliding sleeve.

[0009] A pneumatic actuator connecting pipe, wherein a mating part for cooperating with a limiting and fixing component is provided on the outside of the pneumatic actuator connecting pipe.

[0010] Furthermore, the limiting and fixing component includes a plurality of limiting grooves evenly opened on the outside of the gas source pipe body, and a limiting ball is slidably connected in the limiting groove.

[0011] Furthermore, the connector includes a connecting plate that is slidably connected to the outside of the gas source pipe body, the connecting plate being connected to a sliding sleeve, and an mounting ring being provided on one side of the sliding sleeve.

[0012] Furthermore, a sliding groove is provided between the mounting ring and the connecting plate, and a spring is provided in the sliding groove. The spring is sleeved on the outside of the air source pipe body, with one end of the spring connected to the connecting plate and the other end connected to the mounting ring.

[0013] Furthermore, a moving groove is provided inside the sliding sleeve, and a connecting block is slidably connected inside the moving groove. A connecting rod is provided on one side of the connecting block, and the end of the connecting rod is connected to the fastening sleeve. A baffle is provided at one end of the moving groove to prevent the connecting block from sliding out, and a threaded sleeve is provided inside the fastening sleeve.

[0014] Furthermore, the mating component includes limiting plates symmetrically arranged on the outside of the pneumatic actuator connecting pipe, a groove is provided between the two limiting plates, and a threaded cylinder for mating with the threaded sleeve is provided on the outside of the pneumatic actuator connecting pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, by setting a limiting and fixing component and a matching part, pushes the sliding sleeve to insert the limiting plate into the air source pipe body, and then releases the sliding sleeve to push the limiting ball into the slot between the two limiting plates, thus forming a fixing effect. The advantage of this is that it is easy to operate and has a good fixing effect.

[0017] 2. This utility model sets up a threaded sleeve and a threaded cylinder. After they are fixed, the fastening sleeve is rotated to connect the fastening sleeve and the threaded cylinder. The advantage of this is that, in conjunction with the limiting and fixing components, the connection between the pneumatic actuator connecting pipe and the air source pipe body can be made tighter. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the threaded sleeve structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the limiting and fixing component in this utility model;

[0022] Figure 4 This is a schematic diagram of the spring structure in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] In the picture:

[0025] 1. Air source pipe body; 2. Pneumatic actuator connecting pipe; 3. Sliding sleeve; 4. Fastening sleeve; 5. Threaded cylinder; 6. Limiting plate; 7. Limiting groove; 8. Limiting ball; 9. Mounting ring; 10. Spring; 11. Sliding groove; 12. Connecting plate; 13. Connecting block; 14. Moving groove; 15. Connecting rod; 16. Baffle; 17. Threaded sleeve. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0028] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0029] Please see Figures 1 to 4 As shown, a quick-fixing device for a pneumatic actuator air source pipe includes an air source pipe body 1 and a quick-connecting assembly disposed on the outside of the air source pipe body 1. The quick-connecting assembly includes a sliding sleeve 3 disposed on the outside of the air source pipe body 1, with a fastening sleeve 4 at one end of the sliding sleeve 3. A limiting fixing assembly is disposed at the front end of the air source pipe body 1. The limiting fixing assembly includes a plurality of limiting grooves 7 evenly opened on the outside of the air source pipe body 1. As shown in the figure, the limiting grooves 7 have a trapezoidal cross-section. The limiting ball 8 can slide within the limiting groove 7, and only a part of it will protrude to cooperate with the slot, and it will not fall off. The limiting ball 8 is slidably connected within the limiting groove 7.

[0030] A connector is provided between the air source pipe body 1 and the sliding sleeve 3. The connector includes a connecting plate 12 that is slidably connected to the outside of the air source pipe body 1. The connecting plate 12 is connected to the sliding sleeve 3. A mounting ring 9 is provided on one side of the sliding sleeve 3. A sliding groove 11 is provided between the mounting ring 9 and the connecting plate 12. A spring 10 is provided in the sliding groove 11. The spring 10 is sleeved on the outside of the air source pipe body 1. One end of the spring 10 is connected to the connecting plate 12, and the other end is connected to the mounting ring 9. Pushing the sliding sleeve 3 will cause the spring 10 to be compressed. After the pneumatic actuator connecting pipe 2 enters the air source pipe body 1, it will lift the limit ball 8 and then let it fall into the slot. Then the sliding sleeve 3 will be released and the sliding sleeve 3 will move to the top of the limit groove 7 to ensure that the limit ball 8 will not move arbitrarily.

[0031] The pneumatic actuator connecting pipe 2 has a mating component on its outer side for cooperating with the limiting and fixing assembly. The mating component includes limiting plates 6 symmetrically arranged on the outer side of the pneumatic actuator connecting pipe 2, with a slot between the two limiting plates 6. A threaded cylinder 5 for cooperating with the threaded sleeve 17 is provided on the outer side of the pneumatic actuator connecting pipe 2. A moving groove 14 is opened in the sliding sleeve 3. A connecting block 13 is slidably connected in the moving groove 14. A connecting rod 15 is provided on one side of the connecting block 13. The end of the connecting rod 15 is connected to the fastening sleeve 4. A baffle 16 for preventing the connecting block 13 from sliding out is provided at one end of the moving groove 14. A threaded sleeve 17 is provided on the inner side of the fastening sleeve 4.

[0032] Working principle: Pulling the sliding sleeve 3 above the air source pipe body 1 backward will cause the spring 10 to be compressed in the sliding groove 11 between the connecting plate 12 and the mounting ring 9, thereby releasing the limit ball 8. Then it connects to the pneumatic actuator connecting pipe 2, and then the limit ball 8 enters the slot. When the sliding sleeve 3 is released, the spring 10 returns to its deformation, and the sliding sleeve 3 can be pushed back above the limit groove 7 to limit the limit ball 8.

[0033] Then, the fastening sleeve 4 is pulled outward, which in turn drives the connecting rod 15 to move. As a result, the connecting rod 15 drives the connecting block 13 to slide in the moving groove 14. After contacting the threaded cylinder 5, the fastening sleeve 4 is rotated, which in turn drives the threaded sleeve 17 to rotate outside the threaded cylinder 5, thus performing a second fastening connection.

[0034] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-fixing device for the air supply pipe of a pneumatic actuator, characterized in that: include Gas source pipe body (1); A quick-connect component is provided on the outside of the gas source pipe body (1). The quick-connect component includes a sliding sleeve (3) provided on the outside of the gas source pipe body (1). A fastening sleeve (4) is provided at one end of the sliding sleeve (3). A limit fixing component is provided at the front end of the gas source pipe body (1). A connector is provided between the gas source pipe body (1) and the sliding sleeve (3). The pneumatic actuator connecting pipe (2) has a mating part on its outer side for cooperating with the limiting and fixing component.

2. The quick-fixing device for the air supply pipe of a pneumatic actuator according to claim 1, characterized in that: The limiting and fixing assembly includes several limiting grooves (7) evenly opened on the outside of the gas source pipe body (1), and a limiting ball (8) is slidably connected in the limiting groove (7).

3. The quick-fixing device for the air supply pipe of a pneumatic actuator according to claim 1, characterized in that: The connector includes a connecting plate (12) that is slidably connected to the outside of the gas source pipe body (1). The connecting plate (12) is connected to the sliding sleeve (3). An installation ring (9) is provided on one side of the sliding sleeve (3).

4. A quick-fixing device for the air supply pipe of a pneumatic actuator according to claim 3, characterized in that: A sliding groove (11) is provided between the mounting ring (9) and the connecting plate (12). A spring (10) is provided in the sliding groove (11), and the spring (10) is sleeved on the outside of the gas source pipe body (1). One end of the spring (10) is connected to the connecting plate (12), and the other end is connected to the mounting ring (9).

5. A quick-fixing device for the air supply pipe of a pneumatic actuator according to claim 1, characterized in that: The sliding sleeve (3) has a moving groove (14) inside, and a connecting block (13) is slidably connected inside the moving groove (14). A connecting rod (15) is provided on one side of the connecting block (13), and the end of the connecting rod (15) is connected to the fastening sleeve (4). A baffle (16) is provided at one end of the moving groove (14) to prevent the connecting block (13) from sliding out. A threaded sleeve (17) is provided inside the fastening sleeve (4).

6. A quick-fixing device for the air supply pipe of a pneumatic actuator according to claim 1, characterized in that: The mating parts include limiting plates (6) symmetrically arranged on the outside of the pneumatic actuator connecting pipe (2), a slot is provided between the two limiting plates (6), and a threaded cylinder (5) for mating with the threaded sleeve (17) is provided on the outside of the pneumatic actuator connecting pipe (2).