Connecting rod assembly and compressor

Abstract

The embodiment provides a connecting rod assembly and a compressor, the connecting rod assembly comprises an insert connecting rod, the insert connecting rod comprises a shell, a leather cup and a plug, the shell, the leather cup and the plug are integrally formed, the leather cup and the plug are arranged at one end of the shell, and the leather cup is fixed between the shell and the plug. The shell, the leather cup and the plug are integrally formed, the shell does not need to be welded, the leather cup cannot be affected by compression and high temperature of a plastic part during welding, and the structure and the strength of the leather cup are better. The leather cup and the plug do not need to be manually installed and matched, and the assembling difficulty of the connecting rod assembly is simplified. The shell does not need to be welded, the positions of the leather cup and the plug are more controllable, radial deviation is not prone to occurring, and the service life of the leather cup is longer. The integrally-formed insert connecting rod is higher in quality than welding quality and not prone to breakage.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a connecting rod assembly and a compressor. Background Art

[0002] like Figure 1 As shown, the opposed compressor includes a connecting rod assembly 1, which can also be called a piston arm assembly. The connecting rod assembly 1 includes a connecting rod unit 101, a leather cup 102, a plug 103, an intake valve plate 104 and a pin 105. The connecting rod unit 101 includes two plastic parts. When assembling the connecting rod assembly 1, the two plastic parts are first snapped together, and then the leather cup 102 is fixed to the connecting rod unit 101 with the plug 103, and the intake valve plate 104 is fixed to the plug 103 with the pin 105, and finally the two plastic parts are welded together.

[0003] However, there are the following problems when assembling the connecting rod assembly 1:

[0004] First, when welding two plastic parts, the welding area is very close to the leather cup 102 , and the high temperature may damage the structure of the leather cup 102 , causing the leather cup 102 to crack.

[0005] Second, in order to prevent the leather cup 102 from moving during welding, the leather cup 102 and the plug 103 are set to an interference fit, which will cause assembly difficulties.

[0006] Third, the plug 103 as a whole is prone to eccentricity after welding; at the same time, the welding area is small, which will lead to insufficient welding quality and a small pull-out force of the connecting rod assembly 1. Utility Model Content

[0007] The utility model provides a connecting rod assembly and a compressor to solve the above technical problems of the connecting rod assembly.

[0008] In order to solve the above technical problems, the utility model provides a connecting rod assembly, including an insert connecting rod, the insert connecting rod includes a shell, a leather cup and a plug, the shell, the leather cup and the plug are integrally formed, the leather cup and the plug are arranged at one end of the shell, and the leather cup is fixed between the shell and the plug.

[0009] Optionally, a first rib for reinforcement is provided at a portion of the leather cup that contacts the shell.

[0010] Optionally, the first rib is V-shaped or W-shaped.

[0011] Optionally, the leather cup is provided with a second rib for reinforcement at a portion thereof in contact with the stopper.

[0012] Optionally, the second convex rib is V-shaped or W-shaped.

[0013] Optionally, the connecting rod assembly further includes an intake valve plate and a pin, wherein the pin penetrates the intake valve plate and fixes the intake valve plate to the plug.

[0014] The utility model also provides a compressor, comprising any one of the connecting rod assemblies described above.

[0015] The present embodiment provides a connecting rod assembly and a compressor, wherein the housing, the leather cup and the plug are integrally formed, and the housing does not need to be welded. The leather cup will not be affected by the compression and high temperature of the plastic parts during welding, and the structure and strength of the leather cup will be better. The leather cup and the plug do not need to be manually assembled and matched, which simplifies the assembly difficulty of the connecting rod assembly. The housing does not need to be welded, and the positions of the leather cup and the plug are more controllable, and radial displacement is less likely to occur, and the service life of the leather cup will be longer. The quality of the integrated molded insert connecting rod is higher than that of welding, and it is not easy to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a connecting rod assembly in the prior art.

[0017] Figure 2 It is an exploded schematic diagram of a connecting rod assembly provided in one embodiment of the utility model.

[0018] Figure 3 yes Figure 2 Schematic diagram of the structure after the connecting rod assembly is assembled.

[0019] Figure 4 yes Figure 3 Schematic cross-sectional view of the connecting rod assembly.

[0020] [Description of reference numerals is as follows]:

[0021] Figure 1 : connecting rod assembly-1, connecting rod unit-101, leather cup-102, plug-103, intake valve plate-104, pin-105;

[0022] Figure 2-Figure 4 : Shell -11, leather cup -12, plug -13, intake valve plate -14, pin -15; first convex rib -1201, second convex rib -1202. DETAILED DESCRIPTION

[0023] In order to make the purpose, advantages and features of the utility model clearer, a connecting rod assembly and a compressor proposed by the utility model are further described in detail below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0024] In the description of the present invention, the terms "first", "second", etc. are added for the convenience of description and reference, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined by the terms "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0025] like Figure 2-Figure 4 As shown, this embodiment provides a connecting rod assembly, including an insert connecting rod, the insert connecting rod includes a shell 11, a leather cup 12 and a plug 13, the shell 11, the leather cup 12 and the plug 13 are integrally formed, the leather cup 12 and the plug 13 are arranged at one end of the shell 11, and the leather cup 12 is fixed between the shell 11 and the plug 13.

[0026] The shell 11 and the plug 13 may be made of PTFE (Polytetrafluoroethylene) or other plastic materials, and the shell 11, the plug 13 and the leather cup 12 are integrally formed by injection molding. PTFE has the advantages of high temperature resistance, cold resistance, acid and alkali resistance, and a long service life, and can be used to make the shell 11 and the plug 13. The leather cup 12 is usually made of rubber, and the structure of the leather cup 12 can be maintained by using the insert injection molding process. When the shell 11 and the plug 13 are made of metal, the shell 11, the plug 13 and the leather cup 12 can be integrally formed by die casting.

[0027] The present embodiment provides a connecting rod assembly, in which the housing 11, the leather cup 12 and the plug 13 are integrally formed. The housing 11 does not need to be welded, and the leather cup 12 will not be affected by the compression and high temperature of the plastic parts during welding, and the structure and strength of the leather cup 12 will be better. The leather cup 12 and the plug 13 do not need to be manually assembled and matched, which simplifies the assembly difficulty of the connecting rod assembly. The housing 11 does not need to be welded, and the positions of the leather cup 12 and the plug 13 are more controllable, and radial displacement is not likely to occur, and the service life of the leather cup 12 will be longer. The quality of the integrated molded insert connecting rod is higher than that of welding, and it is not easy to break.

[0028] Optional, such as Figure 4 As shown, the leather cup 12 is provided with a first convex rib 1201 for reinforcement at the portion in contact with the housing 11. The first convex rib 1201 can prevent the leather cup 12 from shaking relative to the housing 11, thereby increasing the firmness of the leather cup 12.

[0029] Optional, such as Figure 4 As shown, the shape of the first convex rib 1201 is V-shaped or W-shaped. The V-shaped or W-shaped first convex rib 1201 has a good reinforcement effect. In other embodiments, the first convex rib 1201 can be a wave shape or the like.

[0030] Optional, such as Figure 4 As shown, the leather cup 12 is provided with a second convex rib 1202 for reinforcement at the portion in contact with the plug 13. The second convex rib 1202 can prevent the leather cup 12 from shaking relative to the plug 13, thereby increasing the firmness of the leather cup 12.

[0031] Optional, such as Figure 4 As shown, the shape of the second convex rib 1202 is V-shaped or W-shaped. The V-shaped or W-shaped second convex rib 1202 has a good reinforcement effect. In other embodiments, the second convex rib 1202 can be a wave shape or the like.

[0032] Optional, such as Figure 2 and Figure 3 As shown, the connecting rod assembly further includes an intake valve plate 14 and a pin 15, wherein the pin 15 penetrates the intake valve plate 14 and fixes the intake valve plate 14 on the plug 13. The intake valve plate 14 can be fixed on the plug 13 by the pin 15. When the connecting rod assembly is installed in the cylinder, the connecting rod assembly reciprocates in the cylinder, and the low-pressure gas pushes the intake valve plate 14 open through the through hole in the housing 11 and enters the cylinder.

[0033] refer to Figure 2-Figure 4 As shown, based on the same technical concept as the above-mentioned connecting rod assembly, this embodiment provides a compressor, including any of the above-mentioned connecting rod assemblies.

[0034] The compressor provided in this embodiment has a housing 11, a leather cup 12 and a plug 13 formed in one piece. The housing 11 does not need to be welded, and the leather cup 12 will not be affected by the compression and high temperature of the plastic parts during welding, so the structure and strength of the leather cup 12 will be better. The leather cup 12 and the plug 13 do not need to be manually assembled and matched, which simplifies the assembly difficulty of the connecting rod assembly. The housing 11 does not need to be welded, and the positions of the leather cup 12 and the plug 13 are more controllable, and radial displacement is not likely to occur, so the service life of the leather cup 12 will be longer. The quality of the integrated molded insert connecting rod is higher than that of welding, and it is not easy to break.

[0035] In summary, the present embodiment provides a connecting rod assembly and a compressor, wherein the housing 11, the leather cup 12 and the plug 13 are integrally formed. The housing 11 does not need to be welded, and the leather cup 12 will not be affected by the compression and high temperature of the plastic parts during welding, and the structure and strength of the leather cup 12 will be better. The leather cup 12 and the plug 13 do not need to be manually assembled and matched, which simplifies the assembly difficulty of the connecting rod assembly. The housing 11 does not need to be welded, and the positions of the leather cup 12 and the plug 13 are more controllable, and radial displacement is less likely to occur, and the service life of the leather cup 12 will be longer. The quality of the integrated molded insert connecting rod is higher than the welding quality and is not easy to break.

[0036] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation to the scope of the utility model. Any changes and modifications made by ordinary technicians in this field based on the above disclosure are within the protection scope of the utility model.

Claims

1. A connecting rod assembly, characterized in that: The utility model comprises an insert connecting rod, which comprises a shell, a leather cup and a plug. The shell, the leather cup and the plug are integrally formed. The leather cup and the plug are arranged at one end of the shell, and the leather cup is fixed between the shell and the plug.

2. A connecting rod assembly according to claim 1, characterized in that: The leather cup is provided with a first convex rib for reinforcement at a position in contact with the shell.

3. A connecting rod assembly according to claim 2, characterized in that: The first convex rib is in a V-shape or a W-shape.

4. A connecting rod assembly according to claim 1, characterized in that: The leather cup is provided with a second convex rib for reinforcement at the position in contact with the stopper.

5. A connecting rod assembly as claimed in claim 4, characterized in that: The second convex rib is in a V-shape or a W-shape.

6. A connecting rod assembly according to claim 1, characterized in that: The connecting rod assembly also includes an intake valve plate and a pin, wherein the pin penetrates the intake valve plate and fixes the intake valve plate on the plug.

7. A compressor, characterized in that: A connecting rod assembly comprising any one of claims 1-6.

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