A semi-hermetic refrigeration compressor housing cover with an exhaust needle.

Abstract

This utility model provides a semi-hermetic refrigeration compressor body cover with an exhaust needle, relating to the field of semi-hermetic refrigeration compressor technology. It includes a cover assembly consisting of a cover body and four rotating seats arranged in a ring on the cover body. It also includes an exhaust assembly consisting of an exhaust seat fixedly connected to the top of the cover body and a threaded seat. A rubber plug is installed inside the exhaust seat, and a through hole is opened at the top of the rubber plug. Through the exhaust assembly, the exhaust seat and the threaded seat cooperate to form an exhaust channel. The inclined through holes of the rubber plug are arranged in a ring, with the angle decreasing from top to bottom towards the center. This design allows the gas to form a converged and then dispersed flow path during exhaust, ensuring smooth exhaust and achieving dynamic sealing through the elasticity of the rubber plug itself, reducing gas leakage. The inclined structure also reduces airflow impact, improves exhaust stability, and enhances overall sealing and exhaust performance.

Description

Technical Field

[0001] This utility model relates to the field of semi-hermetic refrigeration compressor technology, and in particular to a semi-hermetic refrigeration compressor body cover with an exhaust needle. Background Technology

[0002] During the operation of a semi-hermetic refrigeration compressor, excess gas will be generated inside the machine due to various factors. If this gas cannot be discharged in a timely and effective manner, it will have an adverse effect on the working efficiency and service life of the compressor. Currently, there are many shortcomings in the exhaust structure design of the semi-hermetic refrigeration compressor body cover on the market. Some compressor covers lack dedicated and reasonable exhaust components, resulting in poor gas discharge and affecting the compressor's cooling effect; some have exhaust structures, but their sealing performance is poor, which can easily lead to gas leakage and reduce the compressor's operational stability. At the same time, the traditional connection between the compressor cover and the compressor is mostly bolted, which is cumbersome to install and disassemble, requires special tools, is time-consuming and labor-intensive, and is not conducive to later maintenance and repair work. Therefore, this utility model proposes a semi-enclosed refrigeration compressor body cover with an exhaust needle. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a semi-enclosed refrigeration compressor body cover with an exhaust needle.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a semi-hermetic refrigeration compressor housing cover with an exhaust needle, comprising a cover assembly, the cover assembly consisting of a cover body and four rotating seats, the rotating seats being arranged in a ring on the cover body, and further comprising: The exhaust assembly consists of an exhaust seat and a threaded seat fixedly connected to the top of the cover. A rubber plug is provided inside the exhaust seat. A through hole is opened on the top of the rubber plug. The through hole has an inclined structure. The inclination angle of the through hole decreases from top to bottom towards the center. There are multiple through holes, and the multiple through holes are arranged in a ring.

[0005] Furthermore, a limiting protrusion is provided at the bottom of the through hole, and a snap-fit ​​top groove is provided at the top of the rubber plug.

[0006] The beneficial effects of adopting the above-mentioned further solutions are: the limiting protrusion can provide support and limit the rubber plug, preventing it from being affected by excessive downward movement due to gas pressure, thus ensuring the stability of sealing and venting; the snap-fit ​​top groove can precisely match the lower pressure top cover, enhancing the tightness of the connection between the two, improving the uniformity of pressure on the rubber plug, and ensuring the sealing effect. The two work together to ensure smooth venting, strengthen the overall sealing, and improve the operational reliability of the machine cover.

[0007] Furthermore, a lower pressure cap is threadedly connected to the threaded seat above the rubber plug, and the bottom of the lower pressure cap contacts the snap-fit ​​top groove.

[0008] The beneficial effects of adopting the above-mentioned further solution are: the threaded connection between the threaded seat and the lower pressure top cover can be flexibly adjusted by rotating the lower pressure top cover on the rubber plug. The bottom of the lower pressure top cover contacts the snap-fit ​​top groove, which can make the pressure act evenly on the rubber plug. This ensures that the rubber plug fits tightly with the inner wall of the exhaust seat to enhance the sealing performance. It also allows for the adjustment of the opening and closing degree of the through hole by pressure to adapt to different exhaust requirements, thereby improving the applicability and operational stability of the machine cover.

[0009] Furthermore, the vent seat has an vent hole that communicates with the interior on the outer side of the threaded seat. The vent holes are arranged in a ring shape, and the included angle between two adjacent vent holes is equal.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the exhaust holes on the outside of the exhaust seat are evenly distributed in a ring, which allows the exhaust gas to be released in a dispersed manner, avoiding pressure fluctuations caused by local airflow concentration, reducing airflow impact during exhaust. This distribution method makes exhaust smoother and more balanced, which can reduce exhaust resistance. At the same time, it can improve exhaust efficiency in conjunction with the internal structure, reduce noise during gas exhaust, and improve the stability and reliability of the machine cover operation.

[0011] Furthermore, a snap-fit ​​assembly is rotatably connected to the rotating base. The snap-fit ​​assembly is composed of a concave frame, and a snap-fit ​​block is provided on the bottom side of the concave frame near the cover.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the rotatable connection between the rotating seat and the concave frame allows the snap-fit ​​assembly to be flexibly rotated and adjusted in position, and the snap-fit ​​block at the bottom of the concave frame can quickly snap into the corresponding structure of the compressor, replacing the traditional bolt fixing, simplifying the installation and disassembly process. This design does not require special tools and is easy to operate quickly. At the same time, the snap-fit ​​structure can ensure a stable connection between the cover and the compressor, prevent loosening, and improve the assembly efficiency and stability of the machine cover.

[0013] Furthermore, a threaded adjusting rod is threadedly connected to the concave frame, and a compression limiting plate is rotatably connected to one end of the threaded adjusting rod near the cover.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the threaded adjusting rod on the concave frame can be rotated to push the extrusion limiting plate to move, so that the extrusion limiting plate is tightly fitted with the compressor surface. This design can flexibly adjust the tightness of the snap-fit ​​components, make up for the assembly gap, enhance the sealing and stability of the connection between the cover and the compressor, avoid loosening due to vibration during operation, and improve the reliability of the overall structure.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, the exhaust seat and the threaded seat in the exhaust assembly form an exhaust channel. The inclined through holes of the rubber plug are distributed in a ring shape and the angle decreases from top to bottom towards the center. This design allows the gas to form a converged and then dispersed flow path when it is discharged, which not only ensures smooth exhaust, but also achieves dynamic sealing through the elasticity of the rubber plug itself, reducing gas leakage. The inclined structure can also reduce airflow impact, improve exhaust stability, and enhance the overall sealing and exhaust performance. Attached Figure Description

[0016] Figure 1 This is a front view of the body cover of a semi-enclosed refrigeration compressor with an exhaust needle according to the present invention; Figure 2 This is an exploded view of the body cover of a semi-enclosed refrigeration compressor with an exhaust needle according to the present invention; Figure 3 This is a structural diagram of a snap-fit ​​assembly in the body cover of a semi-hermetic refrigeration compressor with an exhaust needle, according to the present invention. Figure 4 This is a cross-sectional view of the exhaust assembly in the body cover of a semi-enclosed refrigeration compressor with an exhaust needle according to this utility model. Figure 5 This is a cross-sectional view of the rubber plug in the body cover of a semi-hermetic refrigeration compressor with an exhaust needle according to this utility model.

[0017] Figure label: 1. Cover assembly; 11. Cover body; 12. Rotating base; 2. Exhaust assembly; 21. Exhaust seat; 211. Exhaust port; 22. Threaded seat; 23. Lower pressure top cover; 24. Rubber plug; 241. Through hole; 242. Snap-fit ​​top groove; 243. Limiting protrusion; 3. Snap-fit ​​assembly; 31. Concave frame; 311. Snap-fit ​​block; 312. Extrusion limiting plate; 313. Threaded adjusting rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-5 As shown, this utility model provides a technical solution: a semi-hermetic refrigeration compressor body cover with an exhaust needle, including a cover assembly 1, which consists of a cover body 11 and four rotating seats 12 arranged in a ring on the cover body 11, and further includes: The exhaust assembly 2 consists of an exhaust seat 21 and a threaded seat 22 fixedly connected to the top of the cover 11. A rubber plug 24 is installed inside the exhaust seat 21. The top of the rubber plug 24 has a through hole 241, which is inclined. The inclination angle of the through hole 241 decreases from top to bottom towards the center. Multiple through holes 241 are arranged in a ring. In the exhaust assembly 2, the exhaust seat 21 and the threaded seat 22 cooperate to form an exhaust channel. The inclined through holes 241 of the rubber plug 24 are arranged in a ring with the angle decreasing from top to bottom towards the center. This design allows the gas to converge and then disperse during exhaust, ensuring smooth exhaust and achieving dynamic sealing through the elasticity of the rubber plug 24, reducing gas leakage. The inclined structure also reduces airflow impact, improves exhaust stability, and enhances overall sealing and exhaust performance.

[0020] The bottom of the through hole 241 is provided with a limiting protrusion 243, and the top of the rubber plug 24 is provided with a snap-fit ​​top groove 242. The limiting protrusion 243 can support and limit the rubber plug 24, preventing it from being affected by excessive downward movement due to gas pressure, thus affecting the sealing and venting stability. The snap-fit ​​top groove 242 can precisely match the pressing top cover 23, enhancing the tightness of the connection between the two, improving the uniformity of pressure on the rubber plug 24, and ensuring the sealing effect. The two work together to ensure smooth venting and enhance the overall sealing performance, thereby improving the operational reliability of the machine cover.

[0021] A downward pressure cover 23 is threadedly connected inside the threaded seat 22 above the rubber plug 24. The bottom of the downward pressure cover 23 contacts the snap-fit ​​top groove 242. The threaded connection between the threaded seat 22 and the downward pressure cover 23 allows for flexible adjustment of the pressure of the downward pressure cover 23 on the rubber plug 24 by rotation. The contact between the bottom of the downward pressure cover 23 and the snap-fit ​​top groove 242 ensures that the pressure is applied evenly to the rubber plug 24. This ensures that the rubber plug 24 fits tightly against the inner wall of the exhaust seat 21 to enhance sealing. It also allows for adjustment of the opening and closing degree of the through hole 241 by pressure control to adapt to different exhaust requirements, thereby improving the applicability and operational stability of the cover.

[0022] The exhaust seat 21 has an exhaust hole 211 that communicates with the interior on the outer side of the threaded seat 22. The exhaust holes 211 are arranged in a ring, and the included angle between two adjacent exhaust holes 211 is equal. The uniform ring distribution of the exhaust holes 211 on the outer side of the exhaust seat 21 allows the discharged gas to be released in a dispersed manner, avoiding pressure fluctuations caused by local airflow concentration and reducing airflow impact during exhaust. This distribution method makes exhaust smoother and more balanced, reduces exhaust resistance, and enhances exhaust efficiency in conjunction with the internal structure. It can also reduce noise during gas exhaust and improve the stability and reliability of the machine cover operation.

[0023] A snap-fit ​​assembly 3 is rotatably connected to the rotating base 12. The snap-fit ​​assembly 3 is composed of a concave frame 31. A snap-fit ​​block 311 is provided on the bottom side of the concave frame 31 near the cover 11. The rotatable connection between the rotating base 12 and the concave frame 31 allows the snap-fit ​​assembly 3 to be flexibly rotated and adjusted in position. The snap-fit ​​block 311 at the bottom of the concave frame 31 can quickly snap into the corresponding structure of the compressor, replacing the traditional bolt fixing, simplifying the installation and disassembly process. This design does not require special tools and is easy to operate quickly. At the same time, the snap-fit ​​structure can ensure a stable connection between the cover 11 and the compressor, prevent loosening, and improve the assembly efficiency and stability of the cover.

[0024] A threaded adjusting rod 313 is threadedly connected to the concave frame 31. The end of the threaded adjusting rod 313 near the cover 11 is rotatably connected to a compression limiting plate 312. The threaded adjusting rod 313 on the concave frame 31 can rotate to push the compression limiting plate 312 to move, so that the compression limiting plate 312 fits tightly against the surface of the compressor. This design can flexibly adjust the tightness of the snap-fit ​​component 3, make up for the assembly gap, enhance the sealing and stability of the connection between the cover 11 and the compressor, avoid loosening due to vibration during operation, and improve the reliability of the overall structure.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A semi-hermetic refrigeration compressor housing cover with an exhaust needle, comprising a cover assembly (1), the cover assembly (1) consisting of a cover body (11) and four rotating seats (12), the rotating seats (12) being arranged in a ring on the cover body (11), characterized in that, Also includes: The exhaust assembly (2) consists of an exhaust seat (21) and a threaded seat (22) fixedly connected to the top of the cover (11). A rubber plug (24) is provided inside the exhaust seat (21). A through hole (241) is provided on the top of the rubber plug (24). The through hole (241) is an inclined structure. The inclination angle of the through hole (241) decreases from top to bottom toward the center. There are multiple through holes (241), and the multiple through holes (241) are arranged in a ring.

2. A semi-hermetic refrigeration compressor body cover with an exhaust needle according to claim 1, characterized in that: The bottom of the through hole (241) is provided with a limiting protrusion (243), and the top of the rubber plug (24) is provided with a snap-fit ​​top groove (242).

3. A semi-hermetic refrigeration compressor body cover with an exhaust needle according to claim 1, characterized in that: The threaded seat (22) is threaded above the rubber plug (24) and a pressure cap (23) is connected. The bottom of the pressure cap (23) contacts the snap-fit ​​top groove (242).

4. A semi-hermetic refrigeration compressor body cover with an exhaust needle according to claim 1, characterized in that: The vent seat (21) has an vent hole (211) that communicates with the interior on the outside of the threaded seat (22). The vent holes (211) are arranged in a ring shape, and the included angle between two adjacent vent holes (211) is equal.

5. A semi-hermetic refrigeration compressor body cover with an exhaust needle according to claim 1, characterized in that: The rotating seat (12) is rotatably connected to a snap-fit ​​assembly (3), which is composed of a concave frame (31). A snap-fit ​​block (311) is provided on the bottom side of the concave frame (31) near the cover (11).

6. A semi-hermetic refrigeration compressor body cover with an exhaust needle according to claim 5, characterized in that: A threaded adjusting rod (313) is threadedly connected to the concave frame (31), and a compression limiting plate (312) is rotatably connected to one end of the threaded adjusting rod (313) near the cover (11).

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