Explosion-proof rotary compressor
By using an explosion-proof pipe structure and a spring-loaded rubber strip design, the problem of loosening and damage at the connection of the rotor compressor exhaust pipe is solved, ensuring the stability and safety of the connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ANKANG REFRIGERATION EQUIPMENT CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary compressor technology, specifically to an explosion-proof rotary compressor. Background Technology
[0002] A rotary compressor is a positive displacement compressor that compresses gas through rotary motion (rather than the reciprocating motion of a piston). It is widely used in refrigeration, air conditioning, and industrial gas compression. Its core features are compact structure, stable operation, and low noise, making it suitable for small and medium-sized refrigeration systems and air compression needs.
[0003] Currently, external pipes are generally connected to the female threaded connector on the exhaust pipe of the rotary compressor via a male connector for gas transport. However, the exhaust pipe structure is currently simple, lacking a protective structure after the male and female connectors are connected. The high-pressure gas generated by the rotary compressor can easily cause the connection between the male and female connectors to loosen. Since the pipes are generally flexible hoses, the connection between the pipe and the male connector is easily bent or damaged after being stretched. After being squeezed by high-pressure gas for a long time, the pipe connection is prone to cracking or bursting, causing the internal high-pressure gas to be exposed and affecting its safety. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide an explosion-proof rotary compressor, which can ensure the stability of the male and female connectors through the explosion-proof pipe, and increase the safety of the pipe after bending through the protective section, spring sheet and rubber strip, so as to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: an explosion-proof rotary compressor, including a rotary compressor body, an exhaust pipe installed on the rotary compressor body, an explosion-proof pipe installed on the outside of the exhaust pipe, the explosion-proof pipe being divided into two halves in the middle, the halves being, from bottom to top, a connecting section, a limiting section and a protective section, the connecting section, the limiting section and the protective section are all arc-shaped structures, and are combined with each other to form an annular tubular structure, the limiting section is expanded outward, and the interior of the limiting section forms a chamber that covers and limits the upper connector of the exhaust pipe, and multiple spring pieces are installed on the end face of the protective section, and rubber strips are installed on the other end of the spring pieces.
[0006] As a preferred technical solution, the end of the exhaust pipe near the main body of the rotor compressor expands outward to form a fixed part with an annular structure. The fixed part is provided with external threads, and a positioning tube is sleeved on the outside of the fixed part. The inner wall of the positioning tube is provided with internal threads. The positioning tube is connected to the external threads on the fixed part through the internal threads. The opening at one end of the positioning tube is sleeved on the outside of the connecting section and fits against the outer wall of the connecting section. Multiple friction strips with an annular structure are protruding on the outer ring surface of the positioning tube.
[0007] As a preferred technical solution, the end of the connecting section away from the limiting section is fixedly connected to the exhaust pipe by a hinge.
[0008] As a preferred technical solution, both the spring sheet and the rubber strip are arranged in an arc shape, and both the spring sheet and the rubber strip are evenly distributed in a ring structure. The spring sheet is a metal spring sheet.
[0009] As a preferred technical solution, multiple positioning grooves are provided on the end face of one side of the protection section, and the end face of the other side of the protection section protrudes to form positioning parts at the position grooves, and the positioning parts are all inserted into the positioning grooves.
[0010] As a preferred technical solution, the inner diameter of the connecting section assembly matches the diameter of the exhaust pipe.
[0011] As a preferred technical solution, the explosion-proof pipe is made of steel.
[0012] The beneficial effects of this utility model are: This utility model has a simple structure. After the male connector is connected to the female connector on the exhaust pipe, the closed limiting part can press the male connector onto the female connector, avoiding loosening caused by the rotation of the male connector. The protective section can cover the connection between the pipe and the male connector, preventing exposure. The bending point of the pipe is acted on the spring and rubber strip. When the pipe is stretched, the elasticity of the rubber strip and spring can play a buffering role, reducing the probability of damage and bursting at the bending point. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model after removing the positioning tube.
[0016] Figure 3 This is a schematic diagram of the structure of this utility model after removing the half-tube.
[0017] The components include: 1. Rotary compressor body; 2. Connecting section; 3. Restricting section; 4. Protective section; 5. Rubber strip; 6. Spring; 7. Fixing part; 8. Positioning tube; 9. Exhaust pipe; 10. Positioning groove; 11. Positioning part. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses an explosion-proof rotary compressor, including a rotary compressor body 1. An exhaust pipe 9 is installed on the rotary compressor body 1. An explosion-proof pipe is provided on the outside of the exhaust pipe 9. The explosion-proof pipe is divided into two halves in the middle. The halves are arranged from bottom to top as a connecting section 2, a limiting section 3, and a protection section 4. The connecting section 2, the limiting section 3, and the protection section 4 are all arranged in an arc shape and are combined with each other to form an annular tubular structure. The limiting section 3 is expanded outward, and the interior of the limiting section forms a chamber that covers and limits the connector (including a female and a male) on the exhaust pipe 9. Multiple spring pieces 6 are installed on the end face of the protection section 4, and a rubber strip 5 is installed on the other end of each spring piece 6.
[0022] In this embodiment, the end of the exhaust pipe 9 near the rotor compressor body 1 expands outward to form a ring-shaped fixing part 7. The fixing part 7 is provided with external threads, and a positioning tube 8 is sleeved on the outside of the fixing part 7. The inner wall surface of the positioning tube 8 is provided with internal threads. The positioning tube 8 is connected to the external threads on the fixing part 7 through the internal threads. The opening at one end of the positioning tube 8 is sleeved on the outside of the connecting section 2 and is fitted to the outer wall surface of the connecting section 2. Multiple friction strips in a ring structure are protruding on the outer ring surface of the positioning tube 8.
[0023] In this embodiment, the end of the connecting section 2 away from the limiting section 3 is fixedly connected to the exhaust pipe 9 through a hinge, so that the half pipe can only be opened and closed with the hinge as the center.
[0024] In this embodiment, both the spring sheet 6 and the rubber strip 5 are arranged in an arc shape, and both the spring sheet 6 and the rubber strip 5 are evenly distributed in a ring structure. The spring sheet 6 is a metal spring sheet 6.
[0025] In this embodiment, a plurality of positioning grooves 10 are provided on the end face of one side of the protection section 4, and a positioning part 11 is formed on the end face of the other side of the protection section 4 opposite to the positioning groove 10. The positioning parts 11 are all inserted into the positioning groove 10 to increase the tightness of the half tube after closure and avoid misalignment.
[0026] In this embodiment, the inner diameter of the connecting section 2 is matched with the diameter of the exhaust pipe 9, so that the connecting section can fit snugly with the exhaust pipe, increasing the stability after installation.
[0027] In this embodiment, the explosion-proof tube is made of steel, and a clamping male connector with better robustness is added.
[0028] During external pipe installation, rotate the positioning tube to move it downwards along the thread. After the positioning tube is removed from the connecting section, the half-pipe can open outwards around the hinge, exposing the female connector on the exhaust pipe. The male connector on the external pipe can be threaded into the female connector. After the connection is completed, close the half-pipe and rotate the positioning tube upwards so that the open end of the positioning tube fits over the outside of the connecting section. The positioning tube can press the half-pipe inwards. As the limiting section moves closer, it can press the outer end face of the male connector onto the female connector, preventing loosening caused by the upward movement of the male connector and ensuring the stability of the male and female connector connection.
[0029] The protective section can wrap around the outside of the male connector, exposing the connection between the pipe and the male connector. This prevents the bending of the pipe from affecting the connection between the pipe and the male connector when the pipe bends. Instead, the curved section rests against the spring and rubber sheet. Once stretched, the elasticity of the rubber strip and spring acts as a buffer, greatly reducing damage and bursting caused by bending and increasing safety.
[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. An explosion-proof rotary compressor, characterized in that: The compressor includes a rotor compressor body (1), on which an exhaust pipe (9) is installed. An explosion-proof pipe is provided on the outside of the exhaust pipe (9). The explosion-proof pipe is divided into two halves in the middle. The halves are connected (2), restricted (3) and protected (4) from bottom to top. The connected (2), restricted (3) and protected (4) are all arc-shaped and are combined to form an annular tubular structure. The restricted (3) expands outward and the inside of the limiting section forms a chamber that covers the connector on the exhaust pipe (9). Multiple spring pieces (6) are installed on the end face of the protected (4). A rubber strip (5) is installed on the other end of each spring piece (6).
2. The explosion-proof rotary compressor according to claim 1, characterized in that: The exhaust pipe (9) expands outward from the end near the rotor compressor body (1) to form a ring-shaped fixing part (7). The fixing part (7) is provided with external threads. The fixing part (7) is fitted with a positioning tube (8) on the outside. The inner wall of the positioning tube (8) is provided with internal threads. The positioning tube (8) is connected to the external threads on the fixing part (7) through the internal threads. The opening at one end of the positioning tube (8) is fitted to the outside of the connecting section (2) and fits against the outer wall of the connecting section (2). Multiple friction strips with a ring structure are protruding on the outer ring surface of the positioning tube (8).
3. The explosion-proof rotary compressor according to claim 1, characterized in that: The end of the connecting section (2) away from the limiting section (3) is fixedly connected to the exhaust pipe (9) by a hinge.
4. The explosion-proof rotary compressor according to claim 1, characterized in that: Both the spring sheet (6) and the rubber strip (5) are arranged in an arc shape, and both the spring sheet (6) and the rubber strip (5) are evenly distributed in a ring structure. The spring sheet (6) is a metal spring sheet (6).
5. The explosion-proof rotary compressor according to claim 1, characterized in that: Multiple positioning grooves (10) are provided on the end face of one side protection section (4), and positioning parts (11) are protruding from the end face of the other side protection section (4) opposite to the positioning grooves (10). The positioning parts (11) are all inserted into the positioning grooves (10).
6. The explosion-proof rotary compressor according to claim 1, characterized in that: The diameter of the inner hole formed by the connecting section (2) matches the diameter of the exhaust pipe (9).
7. The explosion-proof rotary compressor according to claim 1, characterized in that: The explosion-proof pipe is made of steel.