Substation compressor with sealing structure

Abstract

The utility model discloses a substation compressor with a sealing structure, which belongs to the technical field of compressors and comprises a shell, a piston tube is detachably mounted at the top of the shell, a piston body is mounted in the piston tube in an up-down sliding manner, and a sealing component is detachably mounted on an outer ring of the piston body. A control piece used for driving the piston body to move up and down is detachably installed on one side of the shell. A positioning block is detachably installed at the top end of the piston pipe, a butt joint block with a pipe nozzle arranged on one side is detachably installed at the top of the positioning block, and a first one-way valve communicating with the pipe nozzle and a second one-way valve communicating with the outside of the compressor are installed in the positioning block and the butt joint block. The air compressor solves the problems that the assembly sealing performance of all components of an existing air compressor is poor, a piston used for reciprocating motion is usually not provided with a sealing structure, part of air can circulate from the outer ring of the piston, the actual compression effect of the device is poor, and use by people is not facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a substation compressor with a sealing structure. Background Art

[0002] An air compressor is a device used to compress gas, similar to a water pump. An electric motor drives the compressor's crankshaft, which in turn drives the connecting rod, which in turn reciprocates the piston, causing the volume inside the cylinder to change. Through this process, the air compressor can compress air and deliver the compressed air to other devices that require gas pressure energy.

[0003] The assembly sealing between the components of existing air compressors is poor, and the piston used for reciprocating motion often does not have a sealing structure. Some air can flow from the outer ring of the piston, making the actual compression effect of the device relatively poor and not conducive to people's use. Therefore, those skilled in the art provide a substation compressor with a sealing structure to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to provide a substation compressor with a sealing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a substation compressor with a sealing structure, comprising a housing, a piston tube detachably mounted on the top of the housing, a piston body slidably mounted up and down inside the piston tube, a sealing assembly detachably mounted on the outer ring of the piston body, and a control member detachably mounted on one side of the housing for driving the piston body to move up and down;

[0006] A positioning block is detachably mounted on the top of the piston tube, and a docking block with a nozzle on one side is detachably mounted on the top of the positioning block. A first one-way valve connected to the nozzle and a second one-way valve connected to the outside of the compressor are installed inside the positioning block and the docking block, and the docking block is detachably connected to the shell through multiple sets of positioning parts.

[0007] Preferably, the housing includes a casing connected to the piston tube, a first cover plate supporting the control member is detachably mounted on one side of the casing by bolts, and a second cover plate with a through hole provided therein is detachably mounted on the other side of the casing by bolts.

[0008] Preferably: a first sealing gasket is sandwiched between the first cover plate and the casing, a second sealing gasket is sandwiched between the second cover plate and the casing, a third sealing gasket is sandwiched between the casing and the bottom end of the piston tube, and a fourth sealing gasket is sandwiched between the top end of the piston tube and the positioning block.

[0009] Preferably, the control member includes a rotating shaft rotatably connected to the first cover plate through two sets of bearings, one end of the rotating shaft located inside the casing is connected to a rotating block, and the rotating block is connected to the piston body through a detachable push rod.

[0010] Preferably, the first one-way valve includes a first cavity communicating with the piston tube and the nozzle, and a first ball for blocking the bottom opening and a first spring for supporting the first ball are provided inside the first cavity.

[0011] Preferably, the second one-way valve is connected to the piston tube and a second cavity outside the compressor, and a second ball for blocking the top opening and a second spring for supporting the second ball are provided inside the second cavity.

[0012] Preferably, the positioning member comprises a plurality of groups of long screws whose bottom ends are threadedly connected to the casing, the plurality of groups of long screws all pass through the positioning block, and each group of long screws is threadedly connected to a locking nut that presses down the positioning block.

[0013] Preferably: the sealing assembly includes a metal ring threadedly connected to the outer ring of the piston body, a sealing ring is glued to the outside of the metal ring, the sealing ring extends to the bottom of the metal ring, and the bottom of the sealing ring abuts the surface of the piston body, and the outer ring of the sealing ring abuts the inner wall of the piston tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the present invention, a metal ring and a sealing ring are connected to the outside of the piston body by bolts, which can conveniently improve the compression efficiency of the compressor during operation. The sealing assembly is easy to assemble and disassemble, which is beneficial to subsequent inspection and maintenance. The sealing gasket is clamped between the detachable components, which facilitates the improvement of the overall sealing of the substation compressor after assembly.

[0016] 2. In the utility model, a casing is provided with a first cover plate and a second cover plate assembled by bolts on both sides, and the piston tube and the positioning block are fixedly installed on the top of the casing by long bolts and locking nuts. The structure of each component is easy to disassemble, which is convenient for replacing damaged components when the device is used later. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A magnified view of center.

[0020] In the figure: 1. piston tube; 2. piston body; 3. positioning block; 4. nozzle; 5. docking block; 6. housing; 7. first cover plate; 8. through hole; 9. second cover plate; 10. first sealing gasket; 11. second sealing gasket; 12. third sealing gasket; 13. fourth sealing gasket; 14. rotating shaft; 15. rotating block; 16. push rod; 17. first cavity; 18. first ball; 19. first spring; 20. second cavity; 21. second ball; 22. second spring; 23. long screw; 24. locking nut; 25. metal ring; 26. sealing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 3 In an embodiment of the utility model, a substation compressor with a sealing structure includes a shell, a piston tube 1 is detachably installed on the top of the shell, a piston body 2 is slidably installed up and down inside the piston tube 1, a sealing assembly is detachably installed on the outer ring of the piston body 2, a control part for driving the piston body 2 to move up and down is detachably installed on one side of the shell, a positioning block 3 is detachably installed on the top of the piston tube 1, a docking block 5 with a nozzle 4 on one side is detachably installed on the top of the positioning block 3, a first one-way valve connected to the nozzle 4 and a second one-way valve connected to the outside of the compressor are installed inside the positioning block 3 and the docking block 5, and the docking block 5 is detachably connected to the shell through multiple sets of positioning parts.

[0023] When the device is in operation, the control part is connected to the external driving part to drive it to rotate. The rotating control part can drive the piston body 2 to move up and down inside the piston tube 1, and connect the equipment that needs to be connected to the air compressor through the nozzle 4. The piston body 2 cooperates with the first one-way valve, the second one-way valve and other structures on the device to compress the air, and the detachable sealing component on the piston body 2 can improve the sealing performance of the device during operation, thereby ensuring the compression efficiency of the device. The overall structure of the compressor is simple and the components are easy to disassemble, which is beneficial to the inspection and maintenance of the device. The device is convenient for use in the main site or sub-site of each gas production and transportation.

[0024] In one embodiment, specifically, the shell includes a casing 6 connected to the piston tube 1, and a first cover plate 7 supporting the control component is detachably mounted on one side of the casing 6 by bolts, and a second cover plate 9 with a through hole 8 inside is detachably mounted on the other side of the casing 6 by bolts, so as to facilitate the assembly and maintenance of the components inside the casing 6.

[0025] Among them, a first sealing gasket 10 is sandwiched between the first cover plate 7 and the casing 6, a second sealing gasket 11 is assumed to be provided between the second cover plate 9 and the casing 6, a third sealing gasket 12 is sandwiched between the casing 6 and the bottom end of the piston tube 1, and a fourth sealing gasket 13 is sandwiched between the top end of the piston tube 1 and the positioning block 3, which can improve the sealing performance of the substation compressor after assembly. The sealing gasket is made of elastic rubber, which is conducive to improving the stability of the screw and the positioning part after fixation.

[0026] Correspondingly, the control component includes a rotating shaft 14 rotatably connected to the first cover plate 7 through two sets of bearings. One end of the rotating shaft 14 located inside the casing 6 is connected to a rotating block 15. The rotating block 15 is connected to the piston body 2 through a detachable push rod 16. When the external drive controls the rotation of the rotating shaft 14, the rotating shaft 14 can drive the rotating block 15 to rotate, and the rotating block 15 pulls the piston body 2 up and down inside the piston tube 1 through the push rod 16.

[0027] Specifically, the first one-way valve includes a first cavity 17 connecting the piston tube 1 and the nozzle 4, and the interior of the first cavity 17 is provided with a first ball 18 for blocking the bottom opening and a first spring 19 supporting the first ball 18. Specifically, the second one-way valve connects the piston tube 1 and a second cavity 20 outside the compressor, and the interior of the second cavity 20 is provided with a second ball 21 for blocking the top opening and a second spring 22 supporting the second ball 21.

[0028] The piston body 2 moves downward inside the piston tube 1, driving the second ball 21 to move downward and the second spring 22 to be compressed. The piston tube 1 is connected to the outside of the compressor through the second cavity 20. At this time, the first one-way valve is closed. The piston body 2 drives the first ball 18 to move upward and the first spring 19 to be compressed on the inside of the piston tube 1. The piston tube 1 is connected to the nozzle 4 through the first cavity 17. At this time, the second one-way valve is closed.

[0029] The positioning parts include multiple groups of long screws 23 whose bottom ends are threadedly connected to the casing 6. The multiple groups of long screws 23 all pass through the positioning block 3. Each group of long screws 23 is threadedly connected with a locking nut 24 that presses down the positioning block 3. The long screws 23 and the locking nuts 24 facilitate the rapid assembly between the piston tube 1, the positioning block 3 and the docking block 5, which is beneficial to the subsequent disassembly and maintenance of the device.

[0030] In one embodiment, specifically, the sealing assembly includes a metal ring 25 threadedly connected to the outer ring of the piston body 2, and a sealing ring 26 is glued to the outside of the metal ring 25. The sealing ring 26 extends to the bottom of the metal ring 25, and the bottom of the sealing ring 26 abuts against the surface of the piston body 2, and the outer ring of the sealing ring 26 abuts against the inner wall of the piston tube 1. The metal ring 25 is easy to disassemble from the piston body 2, and the sealing ring 26 is easy to replace if it is worn after the device is used for a long time.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A substation compressor with a sealed structure, characterized in that: The invention comprises a housing, a piston tube (1) is detachably mounted on the top of the housing, a piston body (2) is slidably mounted inside the piston tube (1), a sealing assembly is detachably mounted on the outer ring of the piston body (2), and a control member for driving the piston body (2) to move up and down is detachably mounted on one side of the housing; A positioning block (3) is detachably mounted on the top end of the piston tube (1), a docking block (5) with a nozzle (4) on one side is detachably mounted on the top end of the positioning block (3), a first one-way valve communicating with the nozzle (4) and a second one-way valve communicating with the outside of the compressor are mounted inside the positioning block (3) and the docking block (5), and the docking block (5) is detachably connected to the housing via a plurality of positioning members.

2. The substation compressor with a sealed structure according to claim 1, characterized in that: The housing comprises a casing (6) connected to the piston tube (1); a first cover plate (7) supporting the control member is detachably mounted on one side of the casing (6) by means of bolts; and a second cover plate (9) having a through hole (8) therein is detachably mounted on the other side of the casing (6) by means of bolts.

3. The substation compressor with a sealing structure according to claim 2, characterized in that: A first sealing gasket (10) is sandwiched between the first cover plate (7) and the housing (6), a second sealing gasket (11) is sandwiched between the second cover plate (9) and the housing (6), a third sealing gasket (12) is sandwiched between the housing (6) and the bottom end of the piston tube (1), and a fourth sealing gasket (13) is sandwiched between the top end of the piston tube (1) and the positioning block (3).

4. The substation compressor with a sealing structure according to claim 2, characterized in that: The control member comprises a rotating shaft (14) rotatably connected to the first cover plate (7) via two sets of bearings, one end of the rotating shaft (14) located inside the housing (6) is connected to a rotating block (15), and the rotating block (15) is connected to the piston body (2) via a detachably mounted push rod (16).

5. The substation compressor with a sealing structure according to claim 1, characterized in that: The first one-way valve comprises a first cavity (17) connecting the piston tube (1) and the nozzle (4); a first ball (18) for blocking a bottom opening and a first spring (19) for supporting the first ball (18) are provided inside the first cavity (17).

6. The substation compressor with a sealed structure according to claim 1, characterized in that: The second one-way valve communicates with the piston tube (1) and a second cavity (20) outside the compressor. A second ball (21) for sealing the top opening and a second spring (22) for supporting the second ball (21) are provided inside the second cavity (20).

7. The substation compressor with a sealed structure according to claim 2, characterized in that: The positioning member comprises a plurality of groups of long screws (23) whose bottom ends are threadedly connected to the housing (6), the plurality of groups of long screws (23) all pass through the positioning block (3), and each group of long screws (23) is threadedly connected to a locking nut (24) that presses down the positioning block (3).

8. The substation compressor with a sealing structure according to any one of claims 1 to 7, characterized in that: The sealing assembly comprises a metal ring (25) threadedly connected to the outer ring of the piston body (2); a sealing collar (26) is glued to the outside of the metal ring (25); the sealing collar (26) extends to the bottom of the metal ring (25); the bottom of the sealing collar (26) abuts against the surface of the piston body (2); and the outer ring of the sealing collar (26) abuts against the inner wall of the piston tube (1).

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