CN112610494B

CN112610494B - Compressor seals grease proofing structure

Info

Publication number: CN112610494B
Application number: CN202011439329.XA
Authority: CN
Inventors: 张欣; 冯宏; 张阳; 胡洋洋
Original assignee: Ruizhi Jiujiang Precision Electromechanical Co ltd
Current assignee: Ruizhi Jiujiang Precision Electromechanical Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2022-07-26
Anticipated expiration: 2040-12-07
Also published as: CN112610494A

Abstract

The invention discloses a sealing and oil-proof structure of a compressor, which comprises a device main body, wherein the device main body comprises a box body, the bottom of the box body is provided with a damping base assembly, the box body is provided with an air inlet pipe, a compression cavity is arranged in the box body, the bottom of the compression cavity is in through connection with an oil return pipe, a screw rod is arranged in the compression cavity, two ends of the screw rod are respectively and rotatably connected with two sides of the inner wall of the compression cavity, one side of the screw rod is provided with an oil suction device, the oil suction device comprises a positioning box and a negative pressure driving assembly, the positioning box is fixed on the outer wall of the compression cavity, an oil scraping assembly is arranged in the positioning box, a communicating assembly is arranged between the positioning box and the air inlet pipe, the negative pressure driving assembly is arranged in the air inlet pipe, the other side of the screw rod is provided with an oil pressing device, the oil pressing device comprises a pressing box, the pressing box is fixed on the side wall of the box, a pressure assembly is arranged in the pressing box, and a pressurizing assembly is arranged between the pressing box and the oil return pipe. The invention provides a sealed oil-proof structure of a compressor, which is convenient for sucking spilled oil into a compression cavity by using suction pressure and can effectively prevent oil spill caused by blockage of an oil return pipe.

Description

Sealed grease proofing structure of compressor

Technical Field

The invention mainly relates to the technical field of air compressors, in particular to a sealing and oil-proof structure of a compressor.

Background

In the screw air compressor, lubricating oil is used to compress air, and the lubricating oil is likely to leak from the joint between the male screw bearing and the female screw bearing.

According to the patent document with the application number of CN201822212455.6, the oil leakage prevention screw type air compressor comprises an air compressor body, a screw rod is arranged in the air compressor body, one end of the screw rod penetrates through the side wall of the air compressor body, and the outer side of the screw rod, which is positioned on the side wall of the air compressor body, is connected with a sealing disc through a connecting component; the outer side surface of a screw rod of the equipment is sleeved with two sealing assemblies, a sealing sleeve and an extension baffle ring in each sealing assembly are tightly attached to the outer wall of the cambered groove through a contraction ring, and a vacuum generator enables a low-pressure area to be formed between each sealing assembly and the screw rod in the operation process, so that the extension baffle ring and the contraction ring are in tight contact with the cambered groove, and gas outside an air compressor body is effectively prevented from entering the groove; the sealing assembly on the side face of the auxiliary connecting lantern ring blocks oil in the air compressor body in the same mode, and the oil overflow amount is reduced.

The product in the above-mentioned patent can reduce the volume of spilling of oil, still can have a small amount of oil to spill over, consequently need design one kind and be convenient for utilize suction pressure with the oil spill suction compression chamber, can effectively prevent to return oil pipe jam and cause the grease proofing structure of compressor seal of oil spill.

Disclosure of Invention

The invention mainly provides a sealing oil-proof structure of a compressor, which is used for solving the technical problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a sealed oil-proof structure of a compressor comprises a device body, wherein the device body comprises a box body, a damping base component is arranged at the bottom of the box body, an air inlet pipe is arranged on the box body, a compression cavity is arranged in the box body, the bottom of the compression cavity is connected with an oil return pipe in a through mode, the oil return pipe penetrates through the box body and extends to the outside, a screw rod is arranged in the compression cavity, two ends of the screw rod are respectively connected with two sides of the inner wall of the compression cavity in a rotating mode, an oil suction device is arranged on one side of the screw rod and comprises a positioning box and a negative pressure driving component, the positioning box is fixed on the outer wall of the compression cavity, an oil scraping component is arranged in the positioning box, a communicating component is arranged between the positioning box and the air inlet pipe, the negative pressure driving component is arranged in the air inlet pipe, an oil pressing device is arranged on the other side of the screw rod and comprises a pressing box fixed on the side wall of the box body, and a pressure assembly is arranged in the pressure box, and a pressure assembly is arranged between the pressure box and the oil return pipe.

Preferably, the damping base assembly comprises two bottom plates, two spring frames are arranged on the bottom plates, the two ends of the bottom of each spring frame are connected with the bottom plates in a sliding mode, the two spring frames are connected with base frames, and the base frames are connected with the side walls of the box body. In the preferred embodiment, the shock absorption base component is used for facilitating the shock absorption of the whole device and reducing the leakage of oil generated by the shock.

Preferably, oil seals are arranged at two ends of the screw rod, one oil seal is rotatably connected with one end of the inner wall of the compression cavity, and the other oil seal is rotatably connected with the other end of the inner wall of the compression cavity. In the preferred embodiment, oil sealing at the joint of the two ends of the screw is realized through oil sealing, so that excessive overflow of oil is avoided.

Preferably, the oil scraping assembly comprises a protection box, the protection box is fixed on the side wall of the box body, a motor is fixed in the protection box, the output end of the motor sequentially penetrates through the side wall of the box body and the positioning box to be connected with an oil scraping disc, the oil scraping disc is connected with one end of a screw rod, and a plurality of oil scraping grooves are formed in the oil scraping disc. In the preferred embodiment, the oil scraping assembly is used for facilitating the concentrated scraping of the spilled oil attached to the side wall of the positioning box into the oil scraping groove.

Preferably, the intercommunication subassembly includes communicating pipe, communicating pipe one end through connection locating box upper portion, the communicating pipe other end runs through box through connection intake pipe, communicating pipe both ends all are equipped with hourglass hopper-shaped runner. In this preferred embodiment, be convenient for move into the intake pipe with the oil in scraping the oil groove through the intercommunication subassembly, be convenient for increase communicating pipe both ends suction force through leaking hopper-shaped runner.

Preferably, the negative pressure drive assembly comprises a top plate and a connecting rod, the top plate is fixed to the upper surface of the air inlet pipe, the connecting rod penetrates through the top plate to be connected with two air baffles, and the outer wall of the connecting rod is sleeved with a supporting spring. In the preferred embodiment, the negative pressure driving assembly can provide negative pressure for the communicating pipe in the suction stage of the compressor.

Preferably, the pressure assembly comprises a rotating shaft, the rotating shaft is connected with one end of the screw rod, sliding rail plates are symmetrically arranged on the side wall of the rotating shaft, sliding plates are connected to the two sliding rail plates in a sliding mode, and an elastic assembly is arranged between each sliding rail plate and the corresponding sliding plate. In the preferred embodiment, the pressure assembly is used for increasing the air pressure in the pressurized tank and facilitating the backflow of spilled oil.

Preferably, the elastic component comprises a sliding rod, one end of the sliding rod is slidably connected with the inner wall of one end of the sliding rail plate, the other end of the sliding rod is connected with the bottom of the sliding plate, and the outer wall of the sliding rod is sleeved with a compression spring. In the preferred embodiment, the elastic component provides driving force for the extension between the sliding rail plate and the sliding plate.

Preferably, the inner wall of the pressurizing box is provided with a spiral groove, and the inner wall of the spiral groove is in contact with one end of each of the two sliding plates. In the preferred embodiment, the spiral grooves change the volume distribution in the pressurizing box, so that the pressurizing air can be conveniently pressurized by matching with the pressure assembly.

Preferably, the pressurizing assembly comprises a pressurizing pipe, one end of the pressurizing pipe is connected with the pressurizing box in a penetrating manner, the other end of the pressurizing pipe is connected with the oil return pipe in a penetrating manner, a bushing plate is arranged on the inner wall of the pressurizing pipe, a pressure spring is fixed on the bushing plate, a sealing ball is connected on the pressure spring, and the sealing ball covers the communication part of the pressurizing pipe and the pressurizing box. In this preferred embodiment, be convenient for carry out the secondary pressure boost to the air through pressure boost subassembly, pressure air can carry out certain mediation to returning oil pipe, prevents to return oil pipe jam.

Compared with the prior art, the invention has the beneficial effects that:

the invention is convenient for the whole shock absorption of the device through the shock absorption base component, reduces the oil leakage caused by the shock, realizes the oil sealing at the joint of two ends of the screw rod through the oil seal, avoids the excessive oil overflow, is convenient for collecting and concentrating the oil overflow at one end of the screw rod through the oil absorption device and can suck the oil overflow in cooperation with the air inlet process of the compressor, is convenient for concentrating the oil overflow attached to the side wall of the positioning box into the oil scraping groove through the oil scraping disc in the oil absorption device, is convenient for moving the oil in the oil scraping groove into the air inlet pipe through the communicating component, is convenient for increasing the suction force at two ends of the communicating pipe through the funnel-shaped flow passage, can provide negative pressure for the communicating pipe in the air suction stage of the compressor through the negative pressure driving component, can generate pressure air in cooperation with the rotation of the screw rod through the pressure oil pressing device, is convenient for leading the oil return pipe to a certain degree while the oil overflow flows into the oil return pipe, and is convenient for increasing the pressure in the pressure increasing box through the pressure component in the pressure oil pressing device, the backward flow of the oil spilling of being convenient for changes the internal volume distribution of pressurization tank through the heliciform recess, and the cooperation pressure subassembly pressurized air of being convenient for is convenient for carry out the secondary pressure boost to the air through the pressurized subassembly, and pressurized air can return oil pipe and carry out dredging of certain degree, prevents to return oil pipe and blocks up.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is an isometric view of the overall structure of the present invention;

FIG. 2 is an isometric view of the oil scraping assembly structure of the present invention;

FIG. 3 is an isometric view of the negative pressure drive assembly configuration of the present invention;

FIG. 4 is an isometric view of a hydraulic oil press arrangement of the present invention;

FIG. 5 is a side view of the overall structure of the present invention;

FIG. 6 is an enlarged view of the structure at location A of the present invention;

FIG. 7 is a side view of the pressure assembly construction of the present invention;

fig. 8 is an enlarged view of the structure at B of the present invention.

Description of the drawings: 1. a device main body; 11. a box body; 111. an air inlet pipe; 112. a compression chamber; 12. a shock absorbing base assembly; 121. a base plate; 122. a spring holder; 123. a base frame; 13. an oil return pipe; 14. a screw; 141. oil sealing; 2. an oil suction device; 21. a positioning box; 22. a negative pressure drive assembly; 221. a top plate; 222. a connecting rod; 223. a gas baffle; 224. a support spring; 23. a scraping component; 231. a protection box; 232. a motor; 233. scraping an oil disc; 234. an oil scraping groove; 24. a communicating component; 241. a communicating pipe; 2411. a funnel-shaped flow passage; 3. a pressure oil device; 31. a pressurizing box; 311. a helical groove; 32. a pressure assembly; 321. a rotating shaft; 322. a slide rail plate; 323. a sliding plate; 324. a resilient member; 3241. a slide bar; 3242. a compression spring; 33. a pressurizing assembly; 331. a pressure increasing pipe; 332. a bushing; 333. a pressure spring; 334. and (4) sealing the ball.

Detailed Description

In order that the invention may be more fully understood, reference will now be made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration, various embodiments of the invention which may be practiced in different forms and not limited to the embodiments described herein, but on the contrary, the embodiments are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 and 5, in which a sealing oil-proof structure of a compressor includes a device main body 1, the device main body 1 includes a box 11, a damping base assembly 12 is disposed at the bottom of the box 11, an air inlet pipe 111 is disposed on the box 11, a compression chamber 112 is disposed in the box 11, a bottom of the compression chamber 112 is connected to an oil return pipe 13 in a penetrating manner, the oil return pipe 13 penetrates the box 11 and extends to the outside, a screw 14 is disposed in the compression chamber 112, two ends of the screw 14 are respectively rotatably connected to two sides of an inner wall of the compression chamber 112, the damping base assembly 12 includes two bottom plates 121, spring holders 122 are disposed on the two bottom plates 121, two ends of a bottom of the spring holders 122 are respectively slidably connected to the bottom plates 121, base holders 123 are connected to the two spring holders 122, the base holders 123 are connected to a side wall of the box 11, two ends of the screw 14 are respectively disposed with oil seals 141, one of the oil seals 141 is rotatably connected to one end of the inner wall of the compression chamber 112, The other oil seal 141 is rotatably connected with the other end of the inner wall of the compression chamber 112. The device main body 1 can vibrate during operation, the spring frame 122 damps the device main body 1, oil spillage caused by vibration is reduced, the oil seal 141 can effectively reduce oil spillage at the joint of the two ends of the screw 14, and a small amount of oil still overflows from the joint.

Please refer to fig. 1, 2, 3, and 5, wherein an oil suction device 2 is disposed on one side of the screw 14, the oil suction device 2 includes a positioning box 21 and a negative pressure driving assembly 22, the positioning box 21 is fixed on an outer wall of the compression chamber 112, an oil scraping assembly 23 is disposed in the positioning box 21, a communicating assembly 24 is disposed between the positioning box 21 and the air inlet pipe 111, the negative pressure driving assembly 22 is disposed in the air inlet pipe 111, the oil scraping assembly 23 includes a protection box 231, the protection box 231 is fixed on a side wall of the box body 11, a motor 232 is fixed in the protection box 231, an output end of the motor 232 sequentially penetrates through the side wall of the box body 11, the positioning box 21 is connected to an oil scraping disc 233, the oil scraping disc 233 is connected to one end of the screw 14, a plurality of oil scraping grooves 234 are disposed on the oil scraping disc, the communicating assembly 24 includes a communicating pipe 241, one end of the communicating pipe 241 is connected to an upper portion of the positioning box 21, the other end of the communicating pipe 241 penetrates through the box body 11 to connect with the air inlet pipe 111 in a penetrating manner, funnel-shaped runners 2411 are arranged at two ends of the communicating pipe 241, the negative pressure driving assembly 22 comprises a top plate 221 and a connecting rod 222, the top plate 221 is fixed on the upper surface of the air inlet pipe 111, the connecting rod 222 penetrates through the top plate 221 to connect with two air blocking plates 223, and the outer wall of the connecting rod 222 is sleeved with a supporting spring 224. The output end of the motor 232 drives the oil scraping disc 233 to rotate, the oil scraping disc 233 drives the screw 14 to rotate, when oil overflows from the rotating connection of the screw 14, the overflowed oil flows into the positioning box 21, the oil flowing into the positioning box 21 is continuously scraped into the oil scraping groove 234 through the oil scraping disc 233, when the compressor is used for air intake, negative pressure is generated between the male screw and the female screw, the negative pressure drives the air baffle 223 to move downwards, the air baffle 223 at the lower part moves into the compression cavity 112 first, at the moment, the compression cavity 112 is communicated with the communicating pipe 241, the oil in the oil scraping groove 234 is sucked into the compression cavity 112 through negative pressure suction, the negative pressure suction continues to drive the air baffle 223 to move downwards, when the air baffle 223 at the upper part moves downwards to the compression cavity 112, the compression cavity 112 is communicated with the atmosphere to suck air, the negative pressure is eliminated, and the supporting spring 224 drives the air baffle 223 to reset to complete air intake.

Please refer to fig. 1, 4, 5, 6, 7, and 8, wherein the other side of the screw 14 is provided with a pressure oil device 3, the pressure oil device 3 includes a pressure tank 31, the pressure tank 31 is fixed on the side wall of the box body 11, a pressure component 32 is arranged in the pressure tank 31, a pressure component 33 is arranged between the pressure tank 31 and the oil return pipe 13, the pressure component 32 includes a rotating shaft 321, the rotating shaft 321 is connected with one end of the screw 14, slide rail plates 322 are symmetrically arranged on the side wall of the rotating shaft 321, a sliding plate 323 is slidably connected on both the two slide rail plates 322, an elastic component 324 is arranged between the slide rail plate 322 and the sliding plate 323, the elastic component 324 includes a sliding rod 3241, one end of the sliding rod 3241 is slidably connected with the inner wall of one end of the slide rail plate 322, the other end of the sliding rod 3241 is connected with the bottom of the sliding plate 323, the outer wall of the sliding rod 3241 is sleeved with a compression spring 3242, the inner wall of the pressure tank 31 is provided with a spiral groove 311, the inner wall of the spiral groove 311 contacts one end of each of the two sliding plates 323, the pressurizing assembly 33 includes a pressurizing pipe 331, one end of the pressurizing pipe 331 is connected to the pressurizing tank 31 in a penetrating manner, the other end of the pressurizing pipe 331 is connected to the oil return pipe 13 in a penetrating manner, a leak plate 332 is arranged on the inner wall of the pressurizing pipe 331, a pressure spring 333 is fixed on the leak plate 332, a sealing ball 334 is connected to the pressure spring 333, and the sealing ball 334 covers the communication position of the pressurizing pipe 331 and the pressurizing tank 31. When the screw 14 rotates, the rotating shaft 321 is driven to rotate, the rotating shaft 321 drives the sliding rail plate 322 to rotate, the compression spring 3242 pushes the sliding rod 3241, the sliding rod 3241 drives the sliding plate 323 to press the side wall of the pressurizing box 31, the sliding plate 323 slides and moves inwards due to the spiral groove 311 in the pressurizing box 31, the volume of the two pressure components 32 is reduced, compressed air can move overflowed oil into the pressurizing pipe 331, the compressed air pushes the sealing ball 334 to move downwards after being enough, the compressed air enters the oil return pipe 13 through the pressurizing pipe 331, and the overflowed oil is moved into the oil return pipe 13 and is simultaneously guided to the oil return pipe 13.

The specific process of the invention is as follows:

the device main body 1 can vibrate when working, the spring frame 122 can absorb the vibration of the device main body 1, and reduce the oil spill caused by the vibration, the oil seal 141 can effectively reduce the oil spill at the joint of the two ends of the screw 14, but still a small amount of oil overflows through the joint, the output end of the motor 232 drives the oil scraping disc 233 to rotate, the oil scraping disc 233 drives the screw 14 to rotate, when the oil overflows through the rotary joint of the screw 14, the oil spill flows into the positioning box 21, the oil flowing into the positioning box 21 is continuously scraped into the oil scraping groove 234 through the oil scraping disc 233, when the compressor is air-in, negative pressure is generated between the male screw and the female screw, the negative pressure drives the air baffle 223 to move downwards, the air baffle 223 at the lower part moves into the compression cavity 112 first, at this time, the compression cavity 112 is communicated with the communicating pipe 241, the oil in the oil scraping groove 234 is sucked into the compression cavity 112 by the negative pressure suction force, the air baffle 223 continues to move downwards, when the air baffle 223 at the upper part moves downwards to the compression cavity 112, the compression cavity 112 is communicated with the atmosphere to suck air, negative pressure is eliminated, the supporting spring 224 drives the air baffle 223 to reset to complete air inlet, the screw 14 drives the rotating shaft 321 to rotate when rotating, the rotating shaft 321 drives the sliding rail plate 322 to rotate, the compression spring 3242 pushes the sliding rod 3241, the sliding rod 3241 drives the sliding plate 323 to tightly press the side wall of the pressurization box 31, the sliding plate 323 slides and moves inwards due to the spiral groove 311 in the pressurization box 31, the volume of the two pressure components 32 is reduced to compress air, the compressed air can move overflowed oil into the pressurization pipe 331, the sealing ball 334 is pushed to move downwards after the compressed air is enough, the compressed air enters the oil return pipe 13 through the pressurization pipe 331, and the overflowed oil is moved into the oil return pipe 13 and is guided to the oil return pipe 13.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The utility model provides a compressor seals grease proofing structure, includes device main part (1), its characterized in that, device main part (1) includes box (11), box (11) bottom is equipped with shock attenuation base subassembly (12), be equipped with intake pipe (111) on box (11), be equipped with compression chamber (112) in box (11), compression chamber (112) bottom through connection returns oil pipe (13), it runs through box (11) and extends to the outside to return oil pipe (13), be equipped with screw rod (14) in compression chamber (112), screw rod (14) both ends are rotated respectively and are connected compression chamber (112) inner wall both sides, screw rod (14) one side is equipped with oil suction device (2), oil suction device (2) are including location case (21) and negative pressure drive assembly (22), location case (21) are fixed in compression chamber (112) outer wall, be equipped with in location case (21) and scrape oily subassembly (23), positioning box (21) with be equipped with intercommunication subassembly (24) between intake pipe (111), negative pressure drive assembly (22) are located in intake pipe (111), screw rod (14) opposite side is equipped with presses oil device (3), press oil device (3) including pressurized box (31), pressurized box (31) are fixed at box (11) lateral wall, be equipped with pressure subassembly (32) in pressurized box (31), pressurized box (31) with it is equipped with pressure subassembly (33) to return between oil pipe (13).

2. The oil sealing and preventing structure for the compressor according to claim 1, wherein the shock absorbing base assembly (12) comprises two bottom plates (121), each of the two bottom plates (121) is provided with a spring holder (122), both ends of the bottom of the spring holder (122) are slidably connected with the bottom plates (121), the two spring holders (122) are connected with base frames (123), and the base frames (123) are connected with the side walls of the box body (11).

3. The oil sealing and preventing structure of the compressor according to claim 1, wherein oil seals (141) are provided at both ends of the screw (14), one of the oil seals (141) is rotatably connected to one end of the inner wall of the compression chamber (112), and the other oil seal (141) is rotatably connected to the other end of the inner wall of the compression chamber (112).

4. The sealing and oil-proof structure of the compressor according to claim 1, wherein the oil scraping assembly (23) comprises a protection box (231), the protection box (231) is fixed on the side wall of the housing (11), a motor (232) is fixed in the protection box (231), the output end of the motor (232) sequentially penetrates through the side wall of the housing (11), the positioning box (21) is connected with the oil scraping disc (233), the oil scraping disc (233) is connected with one end of the screw rod (14), and a plurality of oil scraping grooves (234) are formed in the oil scraping disc (233).

5. The oil-proof sealing structure for the compressor according to claim 1, wherein the communicating component (24) comprises a communicating pipe (241), one end of the communicating pipe (241) is connected with the upper part of the positioning box (21) in a penetrating manner, the other end of the communicating pipe (241) is connected with the air inlet pipe (111) in a penetrating manner through the box body (11), and funnel-shaped runners (2411) are arranged at two ends of the communicating pipe (241).

6. The oil-proof sealing structure of the compressor according to claim 1, wherein the negative pressure driving assembly (22) comprises a top plate (221) and a connecting rod (222), the top plate (221) is fixed on the upper surface of the air inlet pipe (111), the connecting rod (222) penetrates through the top plate (221) to connect the two air-blocking plates (223), and a supporting spring (224) is sleeved on the outer wall of the connecting rod (222).

7. The oil-proof sealing structure of the compressor according to claim 1, wherein the pressure assembly (32) comprises a rotating shaft (321), the rotating shaft (321) is connected with one end of the screw (14), the side walls of the rotating shaft (321) are symmetrically provided with sliding rail plates (322), both sliding rail plates (322) are slidably connected with a sliding plate (323), and an elastic assembly (324) is arranged between the sliding rail plates (322) and the sliding plate (323).

8. The oil-proof sealing structure of the compressor according to claim 7, wherein the elastic component (324) comprises a sliding rod (3241), one end of the sliding rod (3241) is slidably connected to the inner wall of one end of the sliding rail plate (322), the other end of the sliding rod (3241) is connected to the bottom of the sliding plate (323), and the outer wall of the sliding rod (3241) is sleeved with a compression spring (3242).

9. The oil-proof structure for compressor sealing according to claim 8 is characterized in that the inner wall of the pressure tank (31) is provided with a spiral groove (311), and the inner wall of the spiral groove (311) contacts one end of the two sliding plates (323).

10. The sealed oil-proof structure of the compressor according to claim 1, wherein the pressure-increasing component (33) comprises a pressure-increasing pipe (331), one end of the pressure-increasing pipe (331) is connected with the pressure-increasing tank (31) in a penetrating manner, the other end of the pressure-increasing pipe (331) is connected with the oil return pipe (13) in a penetrating manner, a leakage plate (332) is arranged on the inner wall of the pressure-increasing pipe (331), a pressure spring (333) is fixed on the leakage plate (332), a sealing ball (334) is connected on the pressure spring (333), and the sealing ball (334) covers the communication part of the pressure-increasing pipe (331) and the pressure-increasing tank (31).