Connecting rod sealing element for M-type reciprocating compressor

Abstract

The utility model discloses a connecting rod sealing element for an M type reciprocating compressor, which comprises a shell, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are oppositely arranged in the shell at intervals, a plurality of bolts are arranged on the periphery of the first clamping plate and the periphery of the second clamping plate, and the first clamping plate and the second clamping plate are fixed through the bolts. A positioning convex ring is arranged on the inner wall face of the first clamping plate, a first fixing piece is installed on the positioning convex ring, a clamping groove is formed in the first fixing piece, a second fixing piece is installed on the rear side of the first fixing piece, clamping teeth are arranged at the front end of the second fixing piece, and the clamping teeth are meshed in the clamping groove. The sealing device is reasonable in structural design and convenient to use, the fixing piece, the clamping plate and the sealing gasket can be mutually positioned and fixed, the whole fixing is tighter, and meanwhile the sealing performance of the sealing device can be improved.

Description

Technical Field

[0001] The utility model relates to the field of compressors, in particular to a connecting rod seal for an M-type reciprocating compressor. Background Technique

[0002] The M-type compressor is a symmetrically balanced compressor. The body size of the M-type compressor is relatively long, and the path that the connecting rod needs to travel during reciprocating telescopic movement is also relatively long.

[0003] At present, the connecting rod seal only seals by stacking multiple circular fixed pieces and sealing gaskets in the clamping plate in sequence. During the long-term reciprocating telescopic movement of the connecting rod, due to the relatively flat and smooth surfaces of the fixed pieces and the sealing gaskets, and only being fixed by the clamping plate alone, it is easy to cause the fixed pieces and the sealing gaskets to become loose or shift in position under the influence of the frictional force generated during the movement of the connecting rod, thus affecting their fixing and sealing performance. Therefore, improvement is still needed. Content of the Utility Model

[0004] The utility model provides a connecting rod seal for an M-type reciprocating compressor to solve the above-mentioned problems, including a housing, a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are oppositely and spacedly installed in the housing. A plurality of bolts are arranged on the outer peripheries of the first clamping plate and the second clamping plate and are fixed by the bolts. A positioning convex ring is arranged on the inner wall surface of the first clamping plate. A first fixed piece is installed on the positioning convex ring. A clamping groove is opened on the first fixed piece. A second fixed piece is installed behind the first fixed piece. A clamping tooth is arranged at the front end of the second fixed piece. The clamping tooth is engaged in the clamping groove. A plurality of sealing gaskets are installed in both the first fixed piece and the second fixed piece.

[0005] Preferably, fixing clamping rings are arranged on the inner wall surfaces of the first fixed piece and the second fixed piece. Two sealing gaskets are installed in both the first fixed piece and the second fixed piece. One side of each sealing gasket is set as a toothed surface. The toothed surfaces of the two sealing gaskets are engaged with each other and installed in the first fixed piece and the second fixed piece. A notch is opened on the outer periphery of the sealing gasket.

[0006] The beneficial effects of the utility model are as follows: The structure of the utility model is reasonably designed and easy to use. It can mutually position and fix the fixed piece, the clamping plate and the sealing gasket, making the overall fixation more compact, and at the same time can also improve its sealing performance. Description of the Drawings

[0007] The utility model will be described by way of examples and with reference to the drawings, where:

[0008] Figure 1 is the overall structural schematic diagram of the utility model;

[0009] Figure 2 is a partial structural schematic diagram of the present utility model;

[0010] In the figure: 1. housing; 2. second clamping plate; 3. first clamping plate; 4. connecting rod; 5. bolt; 6. first fixing piece; 7. second fixing piece; 8. sealing gasket; 9. fixing snap ring; 10. positioning convex ring. Specific embodiments

[0011] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0012] Any feature of this specification, unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

[0013] Such as Figure 1 , 2 shown, a connecting rod seal for an M-type reciprocating compressor includes a housing 1, a first clamping plate 2 and a second clamping plate 3. The first clamping plate 2 and the second clamping plate 3 are oppositely and spacedly installed in the housing 1. A plurality of bolts 5 are provided on the outer peripheries of the first clamping plate 2 and the second clamping plate 3 and are fixed by the bolts 5. A positioning convex ring 10 is provided on the inner wall surface of the first clamping plate 2. A first fixing piece 6 is installed on the positioning convex ring 10. A slot is provided on the first fixing piece 6. A second fixing piece 7 is installed at the rear side of the first fixing piece 6. A tooth is provided at the front end of the second fixing piece 7. The tooth is engaged in the slot. A plurality of sealing gaskets 8 are installed in both the first fixing piece 6 and the second fixing piece 7.

[0014] Fixing snap rings 9 are provided on the inner wall surfaces of the first fixing piece 6 and the second fixing piece 7. Two sealing gaskets 8 are installed in both the first fixing piece 6 and the second fixing piece 7. One side of each sealing gasket 8 is provided as a toothed surface. The toothed surfaces of the two sealing gaskets 8 are engaged with each other and installed in the first fixing piece 6 and the second fixing piece 7. A notch is provided on the outer periphery of the sealing gasket 8.

[0015] The connecting shaft sequentially passes through the middle of the first clamping plate 2, the second clamping plate 3, the first fixing piece 6, the second fixing piece 7 and the sealing gasket 8, and performs reciprocating telescopic movement.

[0016] During use, the positioning convex ring 10 can quickly position and install the first fixing piece 6, and at the same time can prevent the first fixing piece 6 from running off when the first clamping plate 2 and the second clamping plate 3 are clamped and fixed; a clamping groove is formed on the first fixing piece 6 and a clamping tooth is provided at the front end of the second fixing piece 7, and the mutual engagement of the two can make the fixation between the first fixing piece 6 and the second fixing piece 7 more compact and firm; one side of the sealing gasket 8 is set as a tooth surface and is engaged with each other through the tooth surface, which can prevent the sealing gasket 8 from being displaced due to the frictional force generated by the reciprocating movement of the connecting shaft 4; the fixing clamping ring 9 can further clamp and fix the sealing gasket 8 between the first fixing piece 6 and the second fixing piece 7.

[0017] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed and convenient to use, and can mutually position and fix the fixing piece, the clamping plate and the sealing gasket, making the overall fixation more compact, and at the same time can also improve its sealing performance.

[0018] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A connecting rod seal for an M-type reciprocating compressor, comprising a housing (1), a first clamping plate (2) and a second clamping plate (3). The first clamping plate (2) and the second clamping plate (3) are oppositely and spaced apart and installed in the housing (1). A plurality of bolts (5) are provided on the outer peripheries of the first clamping plate (2) and the second clamping plate (3) and are fixed by the bolts (5). It is characterized in that, On the inner wall surface of the first clamping plate (2), a positioning convex ring (10) is provided. A first fixing piece (6) is installed on the positioning convex ring (10). A clamping groove is formed on the first fixing piece (6). A second fixing piece (7) is installed at the rear side of the first fixing piece (6). A clamping tooth is provided at the front end of the second fixing piece (7). The clamping tooth is engaged in the clamping groove. A plurality of sealing gaskets (8) are installed in both the first fixing piece (6) and the second fixing piece (7).

2. The connecting rod seal for an M-type reciprocating compressor according to claim 1, characterized in that, On the inner wall surfaces of the first fixing piece (6) and the second fixing piece (7), a fixing clamping ring (9) is provided. Two sealing gaskets (8) are installed in both the first fixing piece (6) and the second fixing piece (7). One surface of the sealing gasket (8) is set as a tooth surface. The tooth surfaces of the two sealing gaskets (8) are engaged with each other and installed in the first fixing piece (6) and the second fixing piece (7). A notch is formed on the outer periphery of the sealing gasket (8).

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