Sealed compressor discharge pipe convenient to disassemble and assemble

Abstract

The sealed compressor discharge pipe convenient to disassemble and assemble comprises a pipe body, pipe head structures are arranged at the two ends of the pipe body, the pipe body is sleeved with a metal net pipe, and the metal net pipe is wrapped with a heat insulation cotton sleeve; according to the device, a specially designed pipe head structure is adopted, adaptive adjustment can be carried out according to a connecting hole in the outer wall of the cylinder body, under the condition that the position of the pipe body is kept fixed, the installation requirement is met, and abnormal exhaust caused by abnormal twisting of the pipe body is avoided.

Description

Technical Field

[0001] The invention relates to a sealed compressor discharge pipe which is convenient for disassembly and installation. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and discharges high-temperature, high-pressure refrigerant gas to the discharge pipe, providing power for the refrigeration cycle.

[0003] In the prior art, the exhaust pipe is connected by screw fixation. Due to the small space in the engine compartment, the layout position of the exhaust pipe is strictly required during installation. If there is a slight deviation, the connection holes at both ends of the exhaust pipe will not be aligned with the connection holes on the side wall of the cylinder body, making installation difficult.

[0004] Moreover, this simple screw fixing method can easily cause gaps at the connection positions, leading to air leakage.

[0005] Based on the above problems, we have designed a sealed compressor discharge pipe which is easy to install, has better sealing performance and is easy to disassemble and install. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a sealed compressor discharge pipe which is easy to install and has better sealing performance and is convenient to disassemble and install.

[0007] To solve the above problems, the present invention adopts the following technical solutions: A sealed compressor discharge pipe which is convenient for disassembly and installation comprises a pipe body. Both ends of the pipe body are provided with pipe head structures. A metal mesh tube is sleeved on the outside of the pipe body, and a heat insulating cotton sleeve is wrapped on the outside of the metal mesh tube.

[0008] Preferably, the metal mesh tube is a steel wire mesh with a wire diameter of 0.1-0.2 mm.

[0009] Preferably, the thermal insulation cotton sleeve is an integral structure, and an opening is provided on the outer wall of the thermal insulation cotton sleeve. The thermal insulation cotton sleeve is expanded through the opening and then covered on the outside of the metal mesh tube. Clamps are installed at both ends of the thermal insulation cotton sleeve, and the clamps are tightened to fix the thermal insulation cotton sleeve and the metal mesh tube.

[0010] Preferably, the pipe head structure includes a connecting seat, a rotating member, a pipe head and a clamping cap. One end of the connecting seat is processed with an external threaded portion, the rotating member is installed through the external threaded portion, the rotating member rotates along the connecting seat, and is connected to the cylinder body of the compressor through the connecting member. The pipe head is slidably inserted into the connecting seat, and the tube body is connected to the side of the pipe head. One end of the pipe head is closed, and the other end extends to the outside of the connecting seat and then inserted into the air hole of the compressor cylinder body. The clamping cap is threadedly connected to the connecting seat, and the clamping cap supports the pipe head after being screwed in; a sliding groove is provided on the outer wall of the connecting seat, and the tube body slides along the sliding groove.

[0011] Preferably, a stepped hole is provided on the surface of the rotating part, the external threaded part is inserted into the stepped hole, a countersunk nut is matched with the external threaded part, and the countersunk nut is embedded in the stepped hole. During installation, the connecting part fits the cylinder body of the compressor, and screw holes are drilled on the surface of the connecting part.

[0012] Preferably, a rib portion is processed on the outer wall of the pipe head, and the rib portion fits with the inner wall of the connecting seat. A groove is processed on the outer wall of the pipe head in front of the rib portion, and a sealing ring is clamped in the groove. The front part of the pipe head is inserted into the air hole of the compressor cylinder body, and the sealing ring forms a seal with the air hole of the cylinder body.

[0013] Preferably, a conical outer sealing surface is formed by injection molding on the outer wall of the sealing ring.

[0014] Preferably, a first sealing ring is sleeved on the external threaded portion, and the countersunk nut is screwed in to tighten the first sealing ring.

[0015] The beneficial effects of the present invention are: Advantage 1: This device adopts a specially designed pipe head structure, which can be adaptively adjusted according to the connection holes on the outer wall of the cylinder body. While keeping the position of the pipe body unchanged, it meets the installation requirements and avoids abnormal exhaust caused by abnormal twisting of the pipe body.

[0016] Advantage 2: The device can also compress the tube head by screwing in the compression cap, ensuring that the tube head is inserted into the air hole in the forward direction and maintaining sufficient sealing to avoid air leakage.

[0017] Advantage three: each component structure of the device can be processed independently, and the manufacturing cost is relatively low.

[0018] Advantage four: according to different compressor types, only the rotating parts need to be replaced, which can meet the adaptation of compressors of different models, making the device more versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is the structural explosion diagram of the pipe head structure; Figure 3 It is a schematic diagram of the assembly of the pipe head structure; Figure 4 It is a half-section view of the tube head structure; Figure 5 It is the structural diagram of the pipe head; Figure 6 This is a structural diagram of the rotating parts. DETAILED DESCRIPTION

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0022] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0023] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 A sealed compressor discharge pipe that is easy to disassemble and install is shown, including a pipe body 1, with pipe head structures 2 provided at both ends of the pipe body 1, a metal mesh tube 3 is sleeved on the outside of the pipe body 1, and a heat insulating cotton sleeve 4 is wrapped on the outside of the metal mesh tube 3.

[0027] In the above technical solution, a specially designed tube head structure 2 is adopted to ensure the firmness of insertion and avoid loosening and leakage.

[0028] The metal mesh tube 3 is sleeved on the outside of the pipe body 1 to provide explosion-proof effect to the pipe body 1 , and cooperates with the external heat insulation cotton sleeve 4 to provide heat insulation effect to the pipe body 1 .

[0029] See also Figure 1 As shown, the metal mesh tube 3 is a steel wire mesh with a wire diameter of 0.1-0.2 mm.

[0030] The cost of the wire mesh is lower, and the metal mesh tube 3 is a multi-layer structure. In the present embodiment, the metal mesh tube 3 is a double-layer structure, the wire diameter of the inner layer is 0.1 mm, and the wire diameter of the outer layer is 0.2 mm. The inner and outer layers are connected by steel wire ropes.

[0031] See also Figure 1 As shown, the thermal insulation cotton sleeve 4 is an integral structure, and an opening is opened on the outer wall of the thermal insulation cotton sleeve 4. The thermal insulation cotton sleeve 4 is expanded through the opening and then covered on the outside of the metal mesh tube 3. Clamps 41 are installed at both ends of the thermal insulation cotton sleeve 4. The clamps 41 are tightened to fix the thermal insulation cotton sleeve 4 and the metal mesh tube 3.

[0032] In the above technical solution, the heat insulating cotton sleeve 4 is conveniently mounted on the outside of the metal mesh tube 3 through the expansion of the opening, and the two ends are tightened by the clamps 41 to play the role of limiting clamping.

[0033] See also Figures 2 to 6As shown, the pipe head structure 2 includes a connecting seat 21, a rotating member 22, a pipe head 23 and a clamping cap 24. One end of the connecting seat 21 is processed with an external threaded portion 211, and the rotating member 22 is installed through the external threaded portion 211. The rotating member 22 rotates along the connecting seat 21 and is connected to the cylinder body of the compressor through the connecting member 22. The pipe head 23 is slidably inserted into the connecting seat 21, and the pipe body 1 is connected to the side of the pipe head 23. One end of the pipe head 23 is closed, and the other end extends to the outside of the connecting seat 21 and is inserted into the air hole of the compressor cylinder body. The clamping cap 24 is threadedly connected to the connecting seat 21, and the clamping cap 24 supports the pipe head 23 after being screwed in; a slide groove 221 is provided on the outer wall of the connecting seat 21, and the pipe body 1 slides along the slide groove 221.

[0034] In the above technical solution, the rotating member 22 is rotatable, and connecting holes are distributed in a ring shape on the outside of the air hole of the cylinder body, and the distance between the connecting holes and the air hole is fixed. In this technical solution, it is only necessary to ensure that the pipe head 23 is inserted into the air hole, and then the rotating member 22 is rotated so that the rotating member 22 corresponds to the connecting hole on the outside of the air hole, and then it is locked by screws.

[0035] The above means greatly reduce the difficulty of installing the device. It only needs to ensure that the pipe head 23 is inserted into the air hole, and the curvature of the pipe body 1 can be adaptively bent. It only needs to ensure that the pipe body 1 is not flattened to ensure normal exhaust.

[0036] In the above technical solution, the tube head 23 is pressed by screwing in the clamping cap 24, thereby preventing the tube head 23 from loosening.

[0037] See also Figure 4 and Figure 6 As shown, a stepped hole 222 is provided on the surface of the rotating part 22, and the external threaded part 211 is inserted into the stepped hole 222. A countersunk nut 223 is matched through the external threaded part 211, and the countersunk nut 223 is embedded in the stepped hole 222. During installation, the connecting part 22 fits the cylinder body of the compressor, and a screw hole 224 is drilled on the surface of the connecting part 22.

[0038] In the above technical solution, the rotating member 22 is installed in close contact with the cylinder body, and a countersunk nut 223 is used, which does not affect the close contact installation of the rotating member 22. At the same time, the countersunk nut 223 is used to limit the rotating member 22, so that the rotating member 22 can only rotate coaxially along the connecting seat 21.

[0039] See also Figure 4 and Figure 5As shown, a rib portion 231 is processed on the outer wall of the pipe head 23, and the rib portion 231 fits with the inner wall of the connecting seat 21. A groove is processed on the outer wall of the pipe head 23, in front of the rib portion 231, and a sealing ring 232 is clamped in the groove. The front part of the pipe head 23 is inserted into the air hole of the compressor cylinder body, and the sealing ring 232 forms a seal with the air hole of the cylinder body.

[0040] In the above technical solution, a high temperature resistant sealing ring 232 is used to increase the high temperature resistance and increase the service life.

[0041] The sealing ring 232 can increase the sealing performance with the cylinder body air hole.

[0042] See also Figure 5 As shown, a conical outer sealing surface 2332 is formed by injection molding on the outer wall of the sealing ring 232 .

[0043] The outer sealing surface 2323 is stacked with more than two layers to increase the sealing performance when in contact with the inner wall of the pore.

[0044] See also Figure 2 and Figure 4 As shown, a first sealing ring 2111 is sleeved on the external threaded portion 211 , and the countersunk nut 223 is screwed in to tighten the first sealing ring 2111 .

[0045] The first sealing ring 2111 can achieve a technical effect of preventing loosening.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sealed compressor discharge pipe that is easy to disassemble and install, characterized in that: It comprises a tube body (1), both ends of which are provided with tube head structures (2), a metal mesh tube (3) is sleeved on the outside of the tube body (1), and a heat insulation cotton sleeve (4) is wrapped on the outside of the metal mesh tube (3).

2. The sealed compressor discharge pipe that is easy to disassemble and install according to claim 1 is characterized in that: The metal mesh tube (3) is a steel wire mesh with a wire diameter of 0.1-0.2 mm.

3. The sealed compressor discharge pipe that is easy to disassemble and install according to claim 1 is characterized in that: The heat insulating cotton sleeve (4) is an integral structure, and an opening is provided on the outer wall of the heat insulating cotton sleeve (4). The heat insulating cotton sleeve (4) is covered on the outside of the metal mesh tube (3) after the opening is expanded. Clamps (41) are installed at both ends of the heat insulating cotton sleeve (4). When the clamps (41) are tightened, the heat insulating cotton sleeve (4) and the metal mesh tube (3) are fixed.

4. The hermetic compressor discharge pipe that is easy to disassemble and install according to claim 1 is characterized in that: The pipe head structure (2) comprises a connecting seat (21), a rotating member (22), a pipe head (23) and a clamping cap (24); one end of the connecting seat (21) is processed with an external threaded portion (211); the rotating member (22) is installed via the external threaded portion (211); the rotating member (22) rotates along the connecting seat (21) and is connected to the cylinder body of the compressor via the connecting member (22); the pipe head (23) is slidably inserted into the connecting seat (21); The tube body (1) is connected to the side of the tube head (23); one end of the tube head (23) is closed, and the other end extends to the outside of the connecting seat (21) and is inserted into the air hole of the compressor cylinder body; the clamping cap (24) is threadedly connected to the connecting seat (21); the clamping cap (24) is screwed in to support the tube head (23); a sliding groove (221) is provided on the outer wall of the connecting seat (21), and the tube body (1) slides along the sliding groove (221).

5. The hermetic compressor discharge pipe that is easy to disassemble and install according to claim 4 is characterized in that: A stepped hole (222) is provided on the surface of the rotating member (22), the external threaded portion (211) is inserted into the stepped hole (222), a countersunk nut (223) is matched through the external threaded portion (211), and the countersunk nut (223) is embedded in the stepped hole (222); during installation, the connecting member (22) fits the cylinder body of the compressor, and a screw hole (224) is drilled on the surface of the connecting member (22).

6. The hermetic compressor discharge pipe that is easy to disassemble and install according to claim 1 is characterized in that: A retaining edge portion (231) is machined on the outer wall of the pipe head (23), the retaining edge portion (231) fits the inner wall of the connecting seat (21), a groove is machined on the outer wall of the pipe head (23) at the front of the retaining edge portion (231), a sealing ring (232) is clamped in the groove, the front of the pipe head (23) is inserted into the air hole of the compressor cylinder body, and the sealing ring (232) forms a seal with the air hole of the cylinder body.

7. The hermetic compressor discharge pipe that is easy to disassemble and install according to claim 6 is characterized in that: A conical outer sealing surface (2332) is formed by injection molding on the outer wall of the sealing ring (232).

8. The hermetic compressor discharge pipe that is easy to disassemble and install according to claim 5 is characterized in that: A first sealing ring (2111) is sleeved on the external threaded portion (211), and the countersunk nut (223) is screwed in to tighten the first sealing ring (2111).

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