Breathing device of piston type compressor body

Abstract

The utility model discloses a piston type compressor body breathing device which comprises a breathing installation assembly installed on a compressor body, the breathing installation assembly comprises an installation pipe communicated with the compressor body, and a breathing piece is installed on the top of the installation pipe. The breathing piece is held to be inserted into the inner cavity of the mounting pipe, the guide block enters the inner cavity of the guide groove during the period, the wedge-shaped face of the wedge-shaped pressing block makes contact with the inner threaded sleeve and moves towards the inner cavity of the cavity and extrudes the spring, and when the wedge-shaped pressing block moves to the bottom of the inner threaded sleeve, the wedge-shaped pressing block protrudes to the outer side of the guide block; then the internal thread sleeve is screwed, the internal thread sleeve abuts against the wedge-shaped pressing block to move downwards, the breathing installation assembly is driven by the guide block to move downwards, an O-shaped sealing ring on the surface of the breathing piece and a sealing gasket are extruded, and the breathing device can be installed on the piston type compressor body in an extrusion mode; and the purposes of convenient installation and firm installation are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compressor technical field, especially, a kind of piston compressor fuselage breathing device. BACKGROUND

[0002] Piston compressor fuselage breathing device is mainly used to balance the pressure inside and outside compressor fuselage, during the working process of compressor, due to the reciprocating motion of piston, the gas pressure in crankcase (fuselage) will change, when internal pressure is different from external atmospheric pressure, breathing device can make gas exchange properly, prevent internal pressure of fuselage from being too high or too low, if there is no breathing device, too high pressure can cause fuselage seal damage, lubricating oil leakage and other problems;Too low pressure can make a large amount of outside air enter, affect the performance of lubricating oil and can bring in impurities.

[0003] Breathing device is generally sleeved with O-shaped sealing ring on surface and installed on piston compressor fuselage by close thread, when breathing device is screwed in, breathing device appears to be offset and screwed in, close thread is easily damaged, and installation difficulty is increased, thus we propose a kind of piston compressor fuselage breathing device, which is installed on piston compressor fuselage by extrusion, to ensure convenient installation and firm installation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of piston compressor fuselage breathing device, with the way of extrusion is installed on piston compressor fuselage in breathing device, it has the advantages of convenient installation and firm installation, to solve the above background technical problems.

[0005] The utility model solves the technical problem that the technical scheme is as follows: a kind of piston compressor fuselage breathing device, it includes the breathing installation component installed on the fuselage of compressor body, the breathing installation component includes the installation pipe communicated with the fuselage of compressor body, the top of the installation pipe is installed with breathing piece, the installation pipe is provided with ladder groove, the bottom of the inner chamber of ladder groove is plugged with sealing pad, the surface of the breathing piece is sleeved with O-shaped sealing ring, the two sides of the breathing piece are all fixedly connected with guide block, the two sides of the top of the installation pipe are all provided with the guide slot for the sliding of guide block, the top of the guide block is slidably connected with wedge-shaped pressing block, the top of the surface of the installation pipe is screw-connected with internal thread sleeve, the internal thread sleeve is above wedge-shaped pressing block.

[0006] Preferably, the top of the guide block is provided with cavity for the sliding of wedge-shaped pressing block, the front side and the back side of the inner chamber of the cavity are both provided with limit sliding slot, the front side and the back side of the wedge-shaped pressing block are both fixedly connected with limit sliding strip sliding in the inner chamber of limit sliding slot.

[0007] Preferably, two symmetrical springs are welded between the end of the wedge-shaped pressing block close to the guide block and the inner wall of the cavity.

[0008] Preferably, the top of the mounting pipe surface is provided with external threads for screwing the internally threaded sleeve.

[0009] Preferably, the surface of the breathing piece is provided with a plurality of strip-shaped grooves.

[0010] Preferably, the bottom of the breathing piece is frustoconical, and the O-shaped sealing ring is sleeved on the surface of the frustoconical breathing piece.

[0011] The utility model discloses the beneficial effect is:

[0012] 1. The utility model discloses a breathing installation component, which comprises a mounting pipe, a breathing piece, a guide block, a wedge-shaped pressing block and an O-shaped sealing ring.

[0013] 2. The utility model discloses a limiting sliding groove and a limiting sliding strip are used in cooperation.

[0014] 3. The utility model discloses a strip-shaped groove, which increases the friction when the user holds the breathing piece, thereby providing convenience for installation. DRAWINGS

[0015] The above and / or other aspects of the utility model will become more apparent and more readily appreciated, as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 It is a three-dimensional schematic view of one embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic view of a breathing installation component of one embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional split schematic view of a breathing installation component of one embodiment of the utility model;

[0019] Figure 4 For an embodiment of the utility model a stereoscopic split schematic view of guide block and wedge-shaped compression block.

[0020] In the drawing, the component list represented by each sign is as follows:

[0021] 1, compressor body, 2, breathing installation assembly, 21, installation pipe, 22, breathing piece, 23, stepped groove, 24, sealing gasket, 25, O-shaped sealing ring, 26, guide block, 27, guide groove, 28, wedge-shaped compression block, 29, internal thread sleeve, 210, limit sliding slot, 211, limit sliding strip, 212, spring, 213, external thread, 214, strip-shaped groove, 215, cavity. DETAILED DESCRIPTION

[0022] In the following, the embodiment of the piston compressor body breathing device of the utility model will be described with reference to the drawings.

[0023] Figures 1-4The utility model discloses a piston compressor body breathing device, which comprises a breathing installation component 2 installed on the compressor body 1 body, the breathing installation component 2 comprises an installation pipe 21 communicated with the compressor body 1 body, the top of the installation pipe 21 is provided with a breathing piece 22, the surface of the breathing piece 22 is provided with a plurality of strip grooves 214, through the setting of strip groove 214, when the user picks up the breathing piece 22, increase the friction, provide the convenience for installation, the installation pipe 21 is provided with a stepped groove 23, the bottom of the inner chamber of stepped groove 23 is plugged with a sealing gasket 24, the surface of breathing piece 22 is provided with an O-shaped sealing ring 25, the bottom of breathing piece 22 is conical, the O-shaped sealing ring 25 is sleeved on the surface of the conical breathing piece 22, the two sides of breathing piece 22 are fixedly connected with guide blocks 26, the two sides of the top of installation pipe 21 are provided with guide grooves 27 for the sliding of guide blocks 26, the top of guide block 26 is slidably connected with a wedge-shaped pressing block 28, the top of the surface of installation pipe 21 is screw-connected with an internal thread sleeve 29, the top of the surface of installation pipe 21 is provided with an external thread 213 for the screw connection of internal thread sleeve 29, the internal thread sleeve 29 is above the wedge-shaped pressing block 28, the top of guide block 26 is provided with a cavity 215 for the sliding of wedge-shaped pressing block 28, the front side and the rear side of the inner chamber of cavity 215 are provided with limiting sliding grooves 210, the front side and the rear side of wedge-shaped pressing block 28 are fixedly connected with limiting sliding strips 211 slidably arranged in the inner chamber of limiting sliding grooves 210, through the cooperation of limiting sliding grooves 210 and limiting sliding strips 211, the limiting sliding strip 211 can slide in the inner chamber of limiting sliding grooves 210 during the movement of wedge-shaped pressing block 28, limiting and guiding the movement of wedge-shaped pressing block 28, avoiding the random deviation of wedge-shaped pressing block 28, and providing support when pressing wedge-shaped pressing block 28, ensuring that wedge-shaped pressing block 28 will not be separated from the inner chamber of cavity 215, two symmetrical springs 212 are welded between the end of wedge-shaped pressing block 28 close to guide block 26 and the inner wall of cavity 215.

[0024] Working principle: the utility model for use, the user holds breathing piece 22, make breathing piece 22 insert the inner chamber of installation pipe 21, the bottom of breathing piece 22 is conical table shape, it is convenient for its into the inner chamber of installation pipe 21, during guiding block 26 will enter the inner chamber of guiding groove 27, the wedge surface of wedge-shaped pressing block 28 and inner thread sleeve 29 contact will move to the inner chamber of cavity 215 and extrude spring 212, when wedge-shaped pressing block 28 moves to the bottom of inner thread sleeve 29, the restoring force of spring 212 will make wedge-shaped pressing block 28 will protrude to the outside of guiding block 26, then twist inner thread sleeve 29, because the setting of outer thread 213, inner thread sleeve 29 will rotate and move downward, inner thread sleeve 29 then moves downward against wedge-shaped pressing block 28, wedge-shaped pressing block 28 will not separate from the inner chamber of cavity 215 because of the limiting of limiting sliding slot 210 and limiting sliding strip 211, wedge-shaped pressing block 28 then drives breathing piece 22 to move downward by guiding block 26, make the O-shaped sealing ring 25 on the surface of breathing piece 22 and sealing pad 24 extrude, guarantee the sealing and installation firm between installation pipe 21 and breathing piece 22.

[0025] In conclusion: the piston compressor body breathing device, by holding breathing piece 22, make breathing piece 22 insert the inner chamber of installation pipe 21, during guiding block 26 will enter the inner chamber of guiding groove 27, the wedge surface of wedge-shaped pressing block 28 and inner thread sleeve 29 contact will move to the inner chamber of cavity 215 and extrude spring 212, when wedge-shaped pressing block 28 moves to the bottom of inner thread sleeve 29, wedge-shaped pressing block 28 will protrude to the outside of guiding block 26, then twist inner thread sleeve 29, inner thread sleeve 29 then moves downward against wedge-shaped pressing block 28, drive breathing installation assembly 2 to move downward by guiding block 26, make the O-shaped sealing ring 25 on the surface of breathing piece 22 and sealing pad 24 extrude, can reach the purpose that installs breathing device on piston compressor body by extruding, guarantee the purpose of installation convenient and firm.

Claims

1. A breathing device for a piston compressor housing, characterized in that The utility model provides a compressor, including the breathing installation component (2) installed on the fuselage of compressor body (1), the breathing installation component (2) includes the installation pipe (21) communicated with the fuselage of compressor body (1), the top of installation pipe (21) is installed with breathing piece (22), is provided with ladder groove (23) on installation pipe (21), the bottom of the inner chamber of ladder groove (23) is plugged with sealing gasket (24), the surface of breathing piece (22) is equipped with O type sealing ring (25), both sides of breathing piece (22) are fixedly connected with guide block (26), both sides of installation pipe (21) top are all set up with the guide groove (27) of guide block (26) sliding, the top of guide block (26) is slidably connected with wedge-shaped pressing block (28), the top of installation pipe (21) surface is screw connected with internal thread sleeve (29), and internal thread sleeve (29) is above wedge-shaped pressing block (28).

2. A breathing arrangement for a hermetic compressor housing according to claim 1, characterized in that The top of the guide block (26) is provided with a cavity (215) for the sliding of the wedge-shaped pressing block (28), the front and rear sides of the inner cavity of the cavity (215) are provided with limiting sliding grooves (210), the front and rear sides of the wedge-shaped pressing block (28) are fixedly connected with limiting sliding strips (211) sliding in the inner cavities of the limiting sliding grooves (210).

3. A breathing arrangement for a hermetic compressor housing according to claim 2, characterized in that Two symmetric springs (212) are welded between the end of the wedge-shaped pressing block (28) close to the guide block (26) and the inner wall of the cavity (215).

4. A breathing arrangement for a hermetic compressor housing according to claim 3, characterized in that The top of the surface of the installation pipe (21) is provided with an external thread (213) for the threaded connection of the internal thread sleeve (29).

5. A breathing arrangement for a hermetic compressor housing according to claim 4, characterized in that The surface of the breathing piece (22) is provided with a plurality of strip-shaped grooves (214).

6. A breathing arrangement for a hermetic compressor housing according to claim 5, characterized in that The bottom of the breathing piece (22) is in the shape of a truncated cone, and the O-shaped sealing ring (25) is sleeved on the surface of the breathing piece (22) in the shape of a truncated cone.

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