Emptying chamber structure for compressor

Abstract

The utility model discloses an emptying chamber structure for a compressor. Comprising an emptying chamber body, a sealing plate and sealing mechanisms, the emptying chamber body is arranged in a compressor box cover, an opening is formed in one side face of the emptying chamber body, the sealing plate is arranged at the opening, the sealing mechanisms are evenly arranged on the outer side face of the emptying chamber body in the circumferential direction, and the sealing mechanisms make contact with the outer surface of the sealing plate. And the sealing plate and the opening of the emptying chamber body are pressed and sealed through the sealing mechanism. According to the emptying chamber, the contact surface of the emptying chamber body and the sealing plate is sealed through the sealing mechanism, a nut block does not need to be welded in the emptying chamber body, a through hole does not need to be machined in the sealing plate, and the sealing performance of the emptying chamber is guaranteed. The sealing mechanism is simple in structure, located outside the emptying chamber body and convenient to install and maintain.

Description

Technical field:

[0001] The utility model belongs to the technical field of screw compressors, and particularly relates to a venting chamber structure for a compressor. Background technology:

[0002] The vent chamber of the compressor is a safety device of the compressor. Its main function is to release the residual pressure inside the compressor after the compressor stops, so as to avoid the high-pressure gas inside the compressor from causing harm to personnel and equipment. In addition, when the compressor is maintained and parts are replaced, the gas inside the compressor also needs to be discharged to ensure the safety of personnel and equipment.

[0003] In the commonly used vent chamber structure, a vent silencer is usually installed inside, and one of the surfaces of the vent chamber is made into a detachable cover plate to facilitate the maintenance and replacement of the vent silencer. The commonly used structure is to weld a nut block inside the vent chamber, and then tighten the cover plate to the vent chamber body by bolts, such as Figure 1 The nut block is welded on the thin sheet metal inside the vent chamber, which can easily deform the sheet metal plane and affect the sealing. In addition, there are requirements for the welding position of the nut block, which is difficult to ensure manually, resulting in installation difficulties.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility model content:

[0005] The purpose of the utility model is to provide a venting chamber structure for a compressor, thereby overcoming the defects in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a vent chamber structure for a compressor, including a vent chamber body, a sealing plate, and a sealing mechanism. The vent chamber body is arranged in a compressor casing cover, and an opening is arranged on one side of the vent chamber body, and a sealing plate is arranged at the opening. The sealing mechanism is evenly arranged circumferentially on the outer side surface of the vent chamber body, and the sealing mechanism is in contact with the outer surface of the sealing plate, and the sealing plate and the opening of the vent chamber body are pressed and sealed by the sealing mechanism.

[0007] Preferably, in the technical solution, the sealing mechanism includes a connecting piece, a fixing block, and a screw, one end of the connecting piece is connected to the outer side surface of the venting chamber body, the connecting piece extends to the outside of the venting chamber body and protrudes from the plane where the sealing plate is located, a connecting hole is provided on the connecting piece, the fixing block is connected to the connecting piece through the connecting hole, the fixing block is located outside the sealing plate, a threaded hole is provided on the fixing block, the screw is arranged in the threaded hole, the screw head part contacts the fixing block to form a first contact surface, and the end of the screw rod contacts the outer surface of the sealing plate to form a second contact surface; the sealing plate and the opening of the venting chamber body are pressed and sealed by pressing the first contact surface and the second contact surface.

[0008] Preferably, in the technical solution, the fixing block includes a connecting part and a fixing part, the connecting part and the fixing part are connected as a whole, the connecting part structure cooperates with the connecting hole, the connecting part is connected to the connecting hole, a threaded hole is provided on the fixing part, and the screw head part contacts the fixing part to form a first contact surface.

[0009] Preferably, in the technical solution, the connecting portion and the connecting hole are clearance-fitted, the size of the connecting hole is larger than the size of the connecting portion, the fixing block is swingably connected to the connecting sheet, and the first contact surface and the second contact surface are both pressed by the swinging fixing block.

[0010] Preferably, in the technical solution, a backing plate is circumferentially arranged inwardly at the opening of the venting chamber body, and a sealing plate is circumferentially overlapped on the backing plate, and a third contact surface is formed at the connection between the backing plate and the sealing plate, and the third contact surface is pressed and sealed by a sealing mechanism.

[0011] Preferably, in the technical solution, a sponge sealing strip is provided in the third contact surface, which cooperates with the sealing mechanism to further enhance the sealing effect.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The contact surface between the venting chamber body and the sealing plate is sealed by the sealing mechanism, and there is no need to weld nut blocks inside the venting chamber body, nor to process through holes on the sealing plate, thus ensuring the sealing performance of the venting chamber. The sealing mechanism has a simple structure and is located outside the venting chamber body, which is easy to install and maintain. Description of the drawings:

[0014] Figure 1 It is a schematic diagram of the existing venting chamber structure;

[0015] Figure 2 This is a schematic diagram of the structure of the vent chamber for the compressor of the utility model;

[0016] Figure 3 for Figure 2 A magnified view of part A;

[0017] Figure 4 This is a cross-sectional view of the connecting piece of the utility model;

[0018] Figure 5 This is a cross-sectional view of the fixing block of the utility model. Specific implementation method:

[0019] The specific implementation modes of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0020] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0021] like Figure 2-5 As shown, a vent chamber structure for a compressor includes a vent chamber body 1, a sealing plate 2, and a sealing mechanism 3. The vent chamber body 1 is arranged in a compressor case cover 4, and an opening is arranged on one side of the vent chamber body 1. A backing plate 10 is arranged inwardly circumferentially at the opening. The sealing plate 2 is circumferentially overlapped on the backing plate 10, and a third contact surface 11 is formed at the connection between the backing plate 10 and the sealing plate 2. A sponge sealing strip 12 is arranged in the third contact surface 11, which cooperates with the sealing mechanism 3 to further increase the sealing effect.

[0022] The sealing mechanism 3 includes a connecting piece 30, a fixing block 31, and a screw 32. One end of the connecting piece 30 is connected to the outer side of the venting chamber body 1. The connecting piece 30 extends to the outside of the venting chamber body 1 and protrudes from the plane where the sealing plate 2 is located. A square connecting hole 33 is provided in the middle and lower part of the connecting piece 30; the fixing block 31 includes a connecting part 310 and a fixing part 311. The connecting part 310 and the fixing part 311 are connected as a whole. The structure of the connecting part 310 matches the connecting hole 33, and the connecting part 310 is connected to the connecting hole 33. The connecting part 310 and the connecting hole 33 are clearance-fitted, the size of the connecting hole 33 is larger than the size of the connecting part 310, the fixing part 311 is located outside the sealing plate 2, a threaded hole 312 is provided on the fixing part 311, the screw 32 is provided in the threaded hole 312, the nail head part of the screw 32 contacts the fixing part 311 to form a first contact surface 34, and the end of the nail rod of the screw 32 contacts the outer surface of the sealing plate 2 to form a second contact surface 20; the third contact surface 11 is pressed and sealed by pressing the first contact surface 34 and the second contact surface 20.

[0023] During the production process of the venting chamber body 1, the number of sealing mechanisms 3 to be set is determined according to the actual exhaust pressure value of the compressor. The sealing plate 2 is placed on the support plate 10, one end of the connecting piece 30 is welded to the outer surface of the venting chamber body 1, the fixing block 31 is installed into the connecting piece 30, and the screw 32 is installed into the threaded hole 312; the screw 32 is turned, and as the screw 32 is turned, the fixing block 31 swings toward the sealing plate 2 driven by the screw 32, and the end of the screw 32 gradually contacts the outer surface of the sealing plate 2. During the gradual compression of the second contact surface 20, due to the reaction force, the fixing block 31 gradually swings in the opposite direction to the sealing plate 2, and the first contact surface 34 is gradually compressed. During the gradual compression of the first contact surface 34 and the second contact surface 20, due to the conduction of force, the force applied by the screw 32 on the sealing plate 2 is transmitted to the third contact surface 11. When the first contact surface 34 and the second contact surface 20 are compressed, the screw 32 is tightened, and at this time, the screw 32 compresses the third contact surface 11. There is no need to weld nut blocks inside the venting chamber body, nor is there any need to process through holes on the sealing plate, thus ensuring the sealing performance of the venting chamber. The sealing mechanism has a simple structure and is located outside the venting chamber body, making it easy to install and maintain.

[0024] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A venting chamber structure for a compressor, characterized in that: The utility model comprises a venting chamber body, a sealing plate and a sealing mechanism. The venting chamber body is arranged in a compressor casing. An opening is arranged on one side of the venting chamber body, and a sealing plate is arranged at the opening. Sealing mechanisms are evenly arranged circumferentially on the outer side surface of the venting chamber body. The sealing mechanism contacts the outer surface of the sealing plate, and the sealing plate and the opening of the venting chamber body are pressed and sealed by the sealing mechanism.

2. The compressor venting chamber structure according to claim 1, characterized in that: The sealing mechanism includes a connecting piece, a fixing block and a screw. One end of the connecting piece is connected to the outer side surface of the venting chamber body, the connecting piece extends to the outside of the venting chamber body and protrudes from the plane where the sealing plate is located, a connecting hole is provided on the connecting piece, the fixing block is connected to the connecting piece through the connecting hole, the fixing block is located outside the sealing plate, a threaded hole is provided on the fixing block, the screw is arranged in the threaded hole, the screw head part contacts the fixing block to form a first contact surface, and the end of the screw rod contacts the outer surface of the sealing plate to form a second contact surface; the sealing plate and the opening of the venting chamber body are pressed and sealed by pressing the first contact surface and the second contact surface.

3. The compressor venting chamber structure according to claim 2, characterized in that: The fixing block includes a connecting part and a fixing part. The connecting part and the fixing part are connected as a whole. The connecting part structure matches the connecting hole. The connecting part and the connecting hole are connected. A threaded hole is arranged on the fixing part. The screw head part contacts the fixing part to form a first contact surface.

4. The compressor venting chamber structure according to claim 3, characterized in that: The connection part and the connection hole are clearance-matched, the size of the connection hole is larger than the size of the connection part, the fixing block is swingably connected to the connection sheet, and the first contact surface and the second contact surface are both pressed tightly by the swinging fixing block.

5. The compressor venting chamber structure according to claim 1, characterized in that: A backing plate is circumferentially arranged inwardly at the opening of the venting chamber body, and a sealing plate is circumferentially overlapped on the backing plate. A third contact surface is formed at the connection between the backing plate and the sealing plate, and the third contact surface is pressed and sealed by a sealing mechanism.

6. The compressor venting chamber structure according to claim 5, characterized in that: A sponge sealing strip is arranged inside the third contact surface.

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