Corrugated pipe connecting structure of silencing cavity assembly

Abstract

The utility model relates to a corrugated pipe connecting structure of a silencing cavity assembly, which comprises a silencing cavity body and a corrugated pipe, the silencing cavity body comprises an air suction port, and one end of the corrugated pipe is provided with an interface matched with the air suction port; the connector comprises an outer sleeve layer and an inner lining layer, the inner lining layer is coaxially arranged on the inner side of the outer sleeve layer, and the inner lining layer is connected with the inner end of the outer sleeve layer; the end portion of the air suction port of the noise reduction cavity body is embedded between the outer sleeve layer and the inner lining layer of the connector of the corrugated pipe, the air suction pipe is clamped from the inner side and the outer side, installation is firm, meanwhile, the number of component parts of parts is reduced, the cost is reduced, and the noise reduction effect is good. The installation steps are simplified, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of compressor silencing cavities, specifically to a bellows connection structure for a silencing cavity assembly. Background Technology

[0002] For fully enclosed refrigeration compressors, using refrigerant at a lower intake temperature is beneficial for improving the compressor's gas delivery efficiency. One method is the silenced chamber intake, which uses a bellows to connect the silenced chamber intake port to the intake pipe on the casing. This silenced chamber intake method improves the energy efficiency ratio and is therefore increasingly widely used in current reciprocating compressors.

[0003] The existing silencing chamber assembly consists of three parts: the silencing chamber body, a spring-loaded locking clip, and a bellows. Before use, workers need to insert the bellows into the silencing chamber's air intake, and then use needle-nose pliers to open the spring-loaded locking clip at the connection between the bellows and the air intake to secure them. However, due to the large number of components, the material cost of the product is increased. Furthermore, the assembly process is cumbersome and requires tools, which is time-consuming and labor-intensive, increasing labor costs. Utility Model Content

[0004] Based on the above description, this utility model provides a bellows connection structure for a silencing cavity assembly. By embedding the air intake end of the silencing cavity body between the outer jacket and inner lining of the bellows interface, the air intake pipe is clamped from both the inner and outer sides, ensuring a secure installation. At the same time, it reduces the number of components, simplifies the installation steps, and lowers costs.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A bellows connection structure for a silencing cavity assembly includes a silencing cavity body and a bellows. The silencing cavity body includes an air intake port. One end of the bellows is provided with an interface that matches the air intake port. The interface includes an outer layer and an inner liner. The inner liner is coaxially disposed inside the outer layer, and the inner ends of the inner liner and the outer layer are connected. The outer layer is sleeved on the outer wall of the air intake port, and the inner liner is tightly attached to the inner wall of the air intake port.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a protruding retaining ring is provided on the outer wall of the air intake, and an annular retaining groove is provided on the inner wall of the outer jacket, with the retaining ring being securely engaged within the retaining groove.

[0008] Furthermore, a protrusion is provided on the outer wall of the air intake, and a mounting hole is provided on the outer jacket, with the protrusion inserted into the mounting hole.

[0009] Furthermore, the protrusion has an inclined surface on the side near the outer end of the air intake, and the outer end of the inclined surface is inclined away from the outer end of the air intake; the protrusion has a right-angled surface on the side away from the outer end of the air intake.

[0010] Furthermore, all the protrusions are located on the same side of the air intake.

[0011] Furthermore, the outer end of the inner wall of the air intake is provided with an inwardly recessed sealing groove, and the inner lining layer is disposed within the sealing groove.

[0012] Furthermore, a vertical stepped surface is provided at the connection between the inner wall of the air intake and the sealing groove, and the outer end face of the inner lining layer is in close contact with the stepped surface.

[0013] Furthermore, the inner wall of the liner is flush with the inner wall of the air intake.

[0014] Furthermore, the outer layer includes a clamping portion and an extension portion, the extension portion being disposed at the outer end of the clamping portion; the inner side surface of the extension portion is flush with the inner side surface of the clamping portion, and the thickness of the extension portion is less than the thickness of the clamping portion.

[0015] Furthermore, the outer end of the extension is provided with a reinforcing part, the inner side of the reinforcing part is flush with the inner side of the extension, and the thickness of the reinforcing part is greater than the thickness of the extension and less than the thickness of the clamping part.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. This utility model embeds the air intake end of the silencing cavity body between the outer and inner lining layers of the corrugated pipe interface, clamping the air intake pipe from both the inner and outer sides, thus ensuring a secure installation. At the same time, it reduces the number of components, simplifies the installation steps, and lowers costs.

[0018] 2. By setting a retaining ring on the outer wall of the air intake and a retaining groove matching the retaining ring on the inner wall of the outer jacket of the interface, the retaining ring and the retaining groove are locked together to prevent detachment, making the connection between the bellows and the silencing cavity body more secure.

[0019] 3. By setting protrusions and matching mounting holes, the locking and positioning of the protrusions and mounting holes can prevent dislodgement. At the same time, it can limit the installation angle of the bellows, prevent fooling during installation, and prevent the bellows from rotating.

[0020] 4. By setting a sealing groove on the inner wall of the air intake and embedding the inner lining of the bellows interface into the sealing groove, the sealing performance between the bellows and the silencing cavity body is further improved.

[0021] 5. By dividing the outer jacket of the interface into a clamping part, an extension part, and a reinforcing part arranged sequentially from the inner end to the outer end, the opening area of ​​the interface can be expanded by the expansion and contraction of the extension part with a smaller thickness, making it easier to fit the corrugated pipe onto the air intake, and the strength of the outer end of the outer jacket is strengthened by the reinforcing part. Attached Figure Description

[0022] Figure 1 A schematic diagram of the bellows connection structure of a sound-absorbing cavity assembly provided in this embodiment of the present invention;

[0023] Figure 2 for Figure 1 A sectional view;

[0024] Figure 3 This is a schematic diagram of the air intake of the silencing cavity body in an embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the air intake of the silencing cavity body in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the protrusion structure in an embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional view of the bellows interface in an embodiment of this utility model;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Inlet; 11. Snap ring; 12. Sealing groove; 121. Stepped surface; 13. Protrusion; 131. Inclined surface; 132. Right angle surface; 2. Interface; 21. Outer layer; 211. Clamping part; 212. Extension part; 213. Reinforcing part; 214. Snap groove; 215. Mounting hole; 22. Inner liner. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0033] A bellows connection structure for a silencing cavity assembly includes a silencing cavity body and a bellows. The silencing cavity body includes an air intake 1, and one end of the bellows is provided with an interface 2 that mates with the air intake 1. The interface 2 includes an outer layer 21 and an inner liner 22. The inner liner 22 is coaxially disposed inside the outer layer 21, and the inner ends of the inner liner 22 and the outer layer 21 are connected. The outer layer 21 is fitted onto the outer wall of the air intake 1, and the inner liner 22 is tightly attached to the inner wall of the air intake 1.

[0034] In this embodiment, the air intake 1 end of the silencing cavity body is embedded between the outer layer 21 and the inner lining layer 22 of the corrugated pipe interface 2, clamping the air intake pipe from both the inside and outside, thus ensuring a secure installation. This also reduces the number of components, simplifies the installation process, and lowers costs.

[0035] In this embodiment, the outer jacket 21 includes a clamping portion 211, an extension portion 212, and a reinforcing portion 213 arranged sequentially from the inner end to the outer end. The inner end face of the clamping portion 211, the inner side face of the extension portion 212, and the inner side face of the reinforcing portion 213 are all flush. The thickness of the extension portion 212 is less than the thickness of the clamping portion 211, and the thickness of the reinforcing portion 213 is greater than the thickness of the extension portion 212 but less than the thickness of the clamping portion 211.

[0036] This embodiment can expand the opening area of ​​the interface 2 by extending and shrinking the thinner extension 212, making it easier to fit the corrugated pipe onto the air intake 1, and strengthen the outer end of the outer jacket 21 by reinforcing the reinforcement 213.

[0037] A raised retaining ring 11 is provided on the outer wall of the air intake 1, and an annular retaining groove 214 is provided on the inner wall of the outer jacket 21. The retaining ring 11 is tightly engaged in the groove 214. The retaining ring 11 and the groove 214 engage and position the retaining ring to prevent it from coming loose, thus making the connection between the bellows and the silencing cavity body more secure. In this embodiment, the retaining ring 11 is provided on the outer end of the outer wall of the air intake 1, and the groove 214 is provided on the inner end of the inner wall of the retaining part 211.

[0038] A protrusion 13 is provided on the outer wall of the air intake 1, and a mounting hole 215 is provided on the outer jacket 21. In this embodiment, the mounting hole 215 penetrates the extension 212, and the protrusion 13 is inserted into the mounting hole 215. In this embodiment, two protrusions 13 are arranged side by side on the same side of the air intake 1, which can limit the installation angle of the bellows, play a foolproof role when installing the bellows, and prevent the bellows from rotating.

[0039] In addition, an inclined surface 131 is provided on the side of the protrusion 13 near the outer end of the air intake 1. The outer end of the inclined surface 131 is inclined away from the outer end of the air intake 1, so that the inner sidewall of the outer jacket 21 can pass over the protrusion 13. A right-angled surface 132 is provided on the side of the protrusion 13 away from the outer end of the air intake 1, which further plays a role in preventing detachment by pressing against the inner side of the mounting hole 215.

[0040] The inner wall of the air intake 1 has an inwardly recessed sealing groove 12 at its outer end, and a vertical stepped surface 121 is provided at the connection between the inner wall of the air intake 1 and the sealing groove 12. The inner lining 22 is disposed in the sealing groove 12, and the outer end face of the inner lining 22 is in close contact with the stepped surface 121. The inner wall of the inner lining 22 is flush with the inner wall of the air intake 1, thereby further improving the sealing performance between the bellows and the silencing cavity body.

[0041] In this embodiment, the bellows and silencing cavity body are securely installed, while the number of components is reduced, the installation steps are simplified, and the cost is lowered.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bellows connection structure for a sound attenuation chamber assembly, characterized by, The muffling cavity body comprises an air inlet, and the bellows is provided with an interface matched with the air inlet at one end; the interface comprises an outer sleeve layer and an inner lining layer, the inner lining layer is coaxially arranged inside the outer sleeve layer, and the inner ends of the inner lining layer and the outer sleeve layer are connected; the outer sleeve layer is sleeved on the outer side wall of the air inlet, and the inner lining layer is tightly attached to the inner side wall of the air inlet.

2. A bellows connection for a sound attenuation chamber assembly according to claim 1, wherein, The outer side wall of the air inlet is provided with a protruding clamping ring, and the inner side wall of the outer sleeve layer is provided with an annular clamping groove, and the clamping ring is clamped in the clamping groove.

3. A bellows connection for a sound attenuation chamber assembly according to claim 1, wherein, The outer side wall of the air inlet is provided with a protruding block, and the outer sleeve layer is provided with a mounting hole, and the protruding block is inserted into the mounting hole.

4. A bellows connection for a sound attenuation chamber assembly according to claim 3, wherein, The protruding block is provided with an inclined surface on the side close to the outer end of the air inlet, and the outer end of the inclined surface is inclined away from the outer end of the air inlet; the protruding block is provided with a right-angle surface on the side away from the outer end of the air inlet.

5. A bellows connection for a sound attenuation chamber assembly according to claim 3, wherein, The protruding blocks are arranged on the same side of the air inlet.

6. A bellows connection for a sound attenuation chamber assembly according to claim 1, wherein, The inner side wall of the air inlet is provided with an inwardly recessed sealing groove, and the inner lining layer is arranged in the sealing groove.

7. A bellows connection for a sound attenuation chamber assembly according to claim 6, wherein, The connection between the inner side wall of the air inlet and the sealing groove is provided with a vertical step surface, and the outer end surface of the inner lining layer is tightly attached to the step surface.

8. A bellows connection for a sound attenuation chamber assembly according to claim 7, wherein, The inner side wall of the inner lining layer is flush with the inner side wall of the air inlet.

9. A bellows connection for a sound attenuation chamber assembly according to claim 1, wherein, The outer sleeve layer comprises a clamping portion and an extension portion, the extension portion is arranged at the outer end of the clamping portion; the inner side surface of the extension portion is flush with the inner side surface of the clamping portion, and the thickness of the extension portion is smaller than the thickness of the clamping portion.

10. A bellows connection for a sound attenuation chamber assembly according to claim 9, wherein, The outer end of the extension portion is provided with a reinforcing portion, the inner side surface of the reinforcing portion is flush with the inner side surface of the extension portion, and the thickness of the reinforcing portion is greater than the thickness of the extension portion and smaller than the thickness of the clamping portion.

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