Air leakage protection device of piston compressor

Abstract

The utility model discloses a piston type compressor air leakage protection device which comprises an air supply pipe fixedly connected to the air outlet end of an air compressor, the air compressor is communicated with the air supply pipe, the left side of the air supply pipe is fixedly connected with a protection shell, and a butt joint is inserted into the left side of the protection shell. A non-return protection assembly is arranged in an inner cavity of the protection shell and comprises first fixing frames fixedly connected to the two sides of the inner cavity of the protection shell, a limiting sliding pin is slidably connected between the two first fixing frames, and an air blocking plug is fixedly connected to the surface of the limiting sliding pin. The air compressor and the air supply pipe are matched for use, compressed air is generated in the inner cavity of the protection shell, meanwhile, the butt joint and the non-return protection assembly are matched for use, the communicating and closing states of the inner cavity of the protection shell are controlled, air leakage is prevented when air pressure equipment is replaced, and the service life of the air pressure equipment is prolonged. The purposes of preventing gas leakage and automatically controlling opening and closing can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compressor leakage protection technical field, especially, relate to a piston type compressor leakage protection device. BACKGROUND

[0002] Piston compressor is the crankshaft by motor etc. Power source driven rotation, drive piston reciprocating motion in cylinder, when the piston moves downward, the negative pressure is formed in the cylinder, the inlet valve opens, the outside gas enters the cylinder, the piston moves upward, the gas in the cylinder is compressed, the pressure rises, when the pressure reaches the opening pressure of the exhaust valve, the exhaust valve opens, the compressed gas is discharged from the cylinder, so the cycle is repeated, realizing the continuous compression of gas.

[0003] In the practical application of piston compressor, when connecting with different air pressure equipment, the compressed gas in the gas storage tank is easy to leak, causing the waste of compressed gas energy, and it may affect the continuous operation of the whole air pressure system due to lack of pressure, and when replacing the air pressure equipment, the high-pressure gas sprayed may pose a threat to the personal safety of the user, therefore, a piston compressor leakage protection device is needed, which adopts an automatic sealing mode to effectively prevent gas leakage when replacing the air pressure equipment, and adopts a jacking communication mode to automatically communicate after installing the air pressure equipment. UTILITY MODEL CONTENTS

[0004] The utility model discloses a piston compressor leakage protection device, adopts an automatic sealing mode to effectively prevent gas leakage when replacing the air pressure equipment, and adopts a jacking communication mode to automatically communicate after installing the air pressure equipment, to solve the above technical problems.

[0005] The utility model discloses a piston compressor leakage protection device, adopts an automatic sealing mode to effectively prevent gas leakage when replacing the air pressure equipment, and adopts a jacking communication mode to automatically communicate after installing the air pressure equipment, to solve the above technical problems.

[0006] Preferably, the surface of the adapter is rotatably connected with a threaded sleeve, and the left side of the surface of the protection shell is provided with an external thread matched with the threaded sleeve.

[0007] Preferably, the right side of the adapter surface is sleeved with a plurality of sealing sleeves, and the surface of the sealing sleeve is tightly attached to the inner wall of the protective shell.

[0008] Preferably, the left side of the inner wall of the protective shell is fixedly connected with a sealing ring, and the surface of the sealing ring is tightly attached to the surface of the air blocking plug.

[0009] Preferably, the left side of the limiting sliding pin is provided with a limiting insertion hole matched with the ejector pin, and the right end of the ejector pin is inserted into the inner cavity of the limiting insertion hole.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model discloses a air compressor and the cooperation of gas supply pipe produces compressed gas in the inner cavity of protective shell, and through the cooperation of adapter and non-return protection assembly, the communication and closed state of the inner cavity of protective shell are controlled, air leakage during the replacement of gas pressure equipment is prevented, and the purposes of preventing gas leakage and automatically controlling opening and closing are achieved.

[0012] 2. The utility model discloses the setting of sealing sleeve enhances the sealing effect between adapter and protective shell, thereby avoiding the leakage of gas between protective shell and adapter, thereby improve the air tightness of protective shell and adapter after being connected.

[0013] 3. The utility model discloses the cooperation of ejector pin and limiting insertion hole plays the role of ejecting limiting sliding pin, makes after the installation of adapter in the inner cavity of protective shell, limiting sliding pin can be automatically pushed to slide, and protective shell and adapter are communicated with gas. BRIEF DESCRIPTION OF DRAWINGS

[0014] Among them:

[0015] Figure 1 It is the front view schematic drawing of one embodiment of the utility model;

[0016] Figure 2 It is one embodiment of the utility model Figure 2 The local enlarged view of point A;

[0017] Figure 3 It is the three-dimensional schematic drawing of adapter and threaded sleeve of one embodiment of the utility model;

[0018] Figure 4 It is the three-dimensional schematic drawing of protective shell and limiting insertion hole of one embodiment of the utility model;

[0019] Figure 5 It is the three-dimensional explosion drawing of protective shell and non-return protection assembly of one embodiment of the utility model.

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

[0021] 1. Air compressor, 2. Air supply pipe, 3. Protective shell, 4. Connector, 5. Anti-return protection assembly, 51. First fixed frame, 52. Limit slide pin, 53. Air blocking plug, 54. Spring, 55. Second fixed frame, 56. Push pin, 57. Limit socket, 6. Threaded sleeve, 7. External thread, 8. Sealing sleeve, 9. Sealing ring. DETAILED DESCRIPTION

[0022] Hereinafter, embodiments of the gas leakage protection device for a piston compressor of the present invention will be described with reference to the accompanying drawings.

[0023] Figure 1-5 The utility model shows an embodiment of a piston compressor leakage protection device, comprising an air supply pipe 2 fixedly connected to the air outlet end of the air compressor 1: the air compressor 1 and the air supply pipe 2 are connected, the left side of the air supply pipe 2 is fixedly connected to a protective shell 3, the left side of the inner wall of the protective shell 3 is fixedly connected to a sealing ring 9, the surface of the sealing ring 9 is tightly fitted with the surface of the air blocking plug 53, the left side of the protective shell 3 is inserted with a docking joint 4, the surface of the docking joint 4 is rotatably connected with a threaded sleeve 6, the left side of the surface of the protective shell 3 is provided with an external thread 7 adapted to the threaded sleeve 6, the right side of the surface of the docking joint 4 is provided with a plurality of sealing sleeves 8, the surface of the sealing sleeve 8 is tightly fitted with the inner wall of the protective shell 3, and the setting of the sealing sleeve 8 enhances the sealing effect between the docking joint 4 and the protective shell 3, thereby avoiding gas leakage between the protective shell 3 and the docking joint 4, thereby improving the air tightness of the protective shell 3 and the docking joint 4 after connection, and the inner cavity of the protective shell 3 The two ends of the spring 54 are respectively welded to the blocking plug 53 and the limiting sliding pin 52, and the inner cavity of the butt joint 4 is fixedly connected to the second fixing frame 55, and the right side of the second fixing frame 55 is fixedly connected to the pushing pin 56.

[0024] Working principle: When the present invention is used, the user generates pressurized gas through the air compressor 1, and delivers the gas to the air pressure equipment used through the coordinated use of the air supply pipe 2, the protective shell 3 and the docking joint 4. When the air pressure equipment is replaced, the docking joint 4 and the protective shell 3 are separated. At the moment when the protective shell 3 and the docking joint 4 are separated, the gas in the inner cavity of the protective shell 3 is pushed to the left. At the same time, under the action of the rebound force of the spring 54, the limiting slide pin 52 slides quickly to the left, so that the surface of the air blocking plug 53 is tightly fitted with the left side of the inner wall of the air supply pipe 2, and at the same time, the sealing ring 9 is squeezed to prevent the gas from leaking from the left end of the protective shell 3. At the same time, when replacing the docking joint 4 and docking with the protective shell 3, the user Insert the docking joint 4 into the inner cavity of the protective shell 3 so that the surface of the sealing sleeve 8 fits tightly with the surface of the protective shell 3, and at the same time, the right end of the push pin 56 enters the inner cavity of the limiting socket 57. At this time, the threaded sleeve 6 reaches the left side of the surface of the protective shell 3, and the threaded sleeve 6 and the external thread 7 are threadedly connected. Then the user uses a wrench to rotate the threaded sleeve 6 so that the threaded sleeve 6 rotates to the right, while driving the docking joint 4 to advance to the right. At the same time, the push pin 56 squeezes the inner wall of the limiting socket 57, so that the limiting sliding pin 52 slides to the right in the inner cavity of the protective shell 3, thereby causing the surface of the air blocking plug 53 to break contact with the inner wall of the protective shell 3, so that the protective shell 3 and the docking joint 4 can be connected again.

[0025] To sum up: the piston compressor leakage protection device generates compressed gas into the inner cavity of the protective shell 3 through the coordinated use of the air compressor 1 and the air supply pipe 2. At the same time, through the coordinated use of the joint 4 and the anti-return protection component 5, the connectivity and closed state of the inner cavity of the protective shell 3 are controlled to prevent leakage when the air pressure equipment is replaced, thereby achieving the purpose of preventing gas leakage and automatically controlling opening and closing.

Claims

1. A piston compressor leakage protection device, characterized in that: The invention comprises an air supply pipe (2) fixedly connected to the air outlet end of the air compressor (1): the air compressor (1) and the air supply pipe (2) are connected, the left side of the air supply pipe (2) is fixedly connected to a protective shell (3), the left side of the protective shell (3) is plugged with a docking joint (4), the inner cavity of the protective shell (3) is provided with a backflow protection component (5), the backflow protection component (5) comprises a first fixing frame (51) fixedly connected to both sides of the inner cavity of the protective shell (3), a limiting sliding pin (52) is slidably connected between the two first fixing frames (51), the surface of the limiting sliding pin (52) is fixedly connected to an air blocking plug (53), the right side of the surface of the limiting sliding pin (52) is provided with a spring (54), the two ends of the spring (54) are respectively welded to the air blocking plug (53) and the limiting sliding pin (52), the inner cavity of the docking joint (4) is fixedly connected to a second fixing frame (55), and the right side of the second fixing frame (55) is fixedly connected to a top pin (56).

2. A piston compressor leakage protection device according to claim 1, characterized in that: A threaded sleeve (6) is rotatably connected to the surface of the butt joint (4), and an external thread (7) adapted to the threaded sleeve (6) is provided on the left side of the surface of the protective shell (3).

3. The gas leakage protection device for a piston compressor according to claim 2, characterized in that: A plurality of sealing sleeves (8) are provided on the right side of the surface of the butt joint (4), and the surface of the sealing sleeves (8) is tightly fitted with the inner wall of the protective shell (3).

4. The gas leakage protection device for a piston compressor according to claim 3, characterized in that: A sealing ring (9) is fixedly connected to the left side of the inner wall of the protective shell (3), and the surface of the sealing ring (9) is tightly fitted to the surface of the air blocking plug (53).

5. The gas leakage protection device for a piston compressor according to claim 4, characterized in that: A limiting socket (57) adapted to the ejector pin (56) is provided on the left side of the limiting sliding pin (52), and the right end of the ejector pin (56) is inserted into the inner cavity of the limiting socket (57).

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