CN114508144A

CN114508144A - Vehicle-mounted rainwater port dirt removing device

Info

Publication number: CN114508144A
Application number: CN202210291603.6A
Authority: CN
Inventors: 张鸿杰; 张昊业; 周文倩; 周轲; 孟欣; 宁芮芮; 关程; 董春光
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-05-17
Anticipated expiration: 2042-03-23
Also published as: CN114508144B

Abstract

The invention relates to the technical field of sewage disposal devices, in particular to a vehicle-mounted rainwater port sewage disposal device which comprises: the surface of the guide rail frame is connected with a translation seat in a sliding manner, the surface of the guide rail frame is provided with a first screw rod assembly, the first screw rod assembly is in threaded connection with the translation seat, the surface of the translation seat is connected with a lifting rack in a sliding manner, the lifting rack is in matched connection with a gear driving assembly, the gear driving assembly is arranged on the surface of the translation seat, and the bottom end of the lifting rack is provided with a grab bucket assembly; the beneficial effects are that: according to the vehicle-mounted rainwater port dirt cleaning device, the second screw rod assembly drives the two groups of clamping plates to move in the opposite direction, the two groups of clamping plates are clamped at the tail end of the flat car, vehicle-mounted installation of the grab bucket type dirt cleaning device is achieved, the lubricating assembly is additionally arranged on the inner side of the traction plate, the corrugated pipe is additionally arranged on the surface of the traction plate, corrosion of a rod body of the second screw rod assembly is avoided, and the support frame can be selectively installed through the extending support connected with the buckle plate.

Description

Vehicle-mounted rainwater port dirt removing device

Technical Field

The invention relates to the technical field of sewage disposal devices, in particular to a vehicle-mounted rainwater port sewage disposal device.

Background

The gutter inlet is a structure for collecting rainwater on a rainwater pipe duct or a confluence pipe duct. Rainwater on the street road surface firstly flows into the drainage pipe channel through the connecting pipe through the rainwater inlet. The form, number and arrangement of the rain openings are determined according to the quantity of the produced catchment areas, the drainage capacity of the rain openings and the road form. The position of the rain inlet can ensure that the ground rainwater can be collected quickly and effectively.

Among the prior art, the inlet for stom water is not cleared up for a period, can cause the siltation back and road ponding because of road earth deposit, adopts the grab bucket to clear up the inside silt of inlet for stom water usually.

However, the conventional grab bucket type sewage disposal device is large in size, and needs to be moved by a plurality of persons in a cooperative manner, and when a plurality of rainwater mouths need to be cleaned, the grab bucket type sewage disposal device needs to be repeatedly loaded and unloaded on a transport vehicle, so that the labor amount is large.

Disclosure of Invention

The invention aims to provide a vehicle-mounted rainwater port dirt cleaning device, which aims to solve the problem that a grab bucket type dirt cleaning device needs to be repeatedly assembled and disassembled on a transport vehicle when a plurality of rainwater ports proposed in the background technology need to be cleaned, so that the labor capacity is large.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an on-vehicle type inlet for stom water device of decontaminating, on-vehicle type inlet for stom water device of decontaminating includes:

the surface of the guide rail frame is connected with a translation seat in a sliding manner, the surface of the guide rail frame is provided with a first lead screw assembly, the first lead screw assembly is in threaded connection with the translation seat, the surface of the translation seat is connected with a lifting rack in a sliding manner, the lifting rack is connected with a gear driving assembly in a matching manner, the gear driving assembly is arranged on the surface of the translation seat, and the bottom end of the lifting rack is provided with a grab bucket assembly;

the two groups of support frames are arranged and are fixed on the surface of the guide rail frame, a second screw rod assembly is arranged between the two groups of support frames, two groups of traction plates are screwed on a rod body of the second screw rod assembly, and the traction plates are fixed on the top surfaces of the clamping plates; and

the lantern ring is located the surface of traction plate, and the oil storage chamber has been seted up to the inside of the lantern ring, and the oil drip hole has been seted up to the interior anchor ring in oil storage chamber, and the inside of oil drip hole is provided with rubber seal block and sponge piece, and the surface grafting of rubber seal block has the cotton core, and the inner ring mouth of the lantern ring is provided with the brush hair, and the surface of the lantern ring is provided with the bellows, and the body of rod outside at second lead screw subassembly is established to the bellows cover.

Preferably, the following components: the guide rail frame is of a 'return' shape plate structure, the translation seat is of a 'convex' shape cylinder structure, the part of the translation seat, which extends out of an inner annular opening of the guide rail frame, is penetrated and screwed by a rod body of the first lead screw assembly, the rod body of the first lead screw assembly is a single-thread lead screw, one end of the rod body of the first lead screw assembly is arranged on the inner annular surface of the guide rail frame through a bearing seat, the other end of the rod body of the first lead screw assembly is connected to the power output end of the first driving motor in a transmission mode, and the first driving motor is fixed on the outer annular surface of the guide rail frame.

Preferably, the opening has been seted up to the top surface of translation seat, and the lifting rack passes the opening, and the lateral wall of translation seat has seted up and has reserved the mouth, reserves mouth and opening and communicates with each other, and gear drive assembly's drive fluted disc rotates to be connected in reserving the mouth, and gear drive assembly's driver is fixed on the surface of translation seat.

Preferably, the support frame is a square frame structure with a downward opening, the two groups of support frames are symmetrically distributed about the guide rail frame, the bottom end of each support frame is inserted with a control insertion plate, a plurality of positioning holes are formed in the surface of the control insertion plate, the outer wall of each support frame is screwed with a locking screw, and the locking screw penetrates through a side plate of each support frame and then is screwed in the positioning holes.

Preferably, the surface of support frame is provided with two sets of limiting plates, and two sets of limiting plates distribute about being, and peg graft between two sets of limiting plates and have the buckle, and the buckle is detained in one side of support frame, and the buckle is "Contraband" font platelike structure, is provided with connecting screw on the curb plate of buckle, and connecting screw runs through behind the curb plate of buckle the spiro union on the curb plate of support frame.

Preferably, the surface of buckle is provided with extends the support, extends the support and is "L" shaped plate column structure, and the bottom that extends support and regulation and control picture peg all is provided with removes the seat, and the bottom surface that removes the seat is provided with a plurality of pulleys, is provided with the reinforcement connecting rod between two sets of extension supports.

Preferably, the rod body of the second screw rod assembly is a double-thread screw rod symmetrically distributed in the middle, one end of the second screw rod assembly is connected to the surface of the support frame through a bearing seat, the other end of the second screw rod assembly is connected to the power output end of a second driving motor in a conventional mode after penetrating through another support frame, and the second driving motor is installed on the surface of the other support frame.

Preferably, the surface of the traction plate is provided with a screw connector, the screw connector is connected with the rod body of the second screw rod assembly in a matched mode, the clamping plate is of a square frame structure, the surface of the clamping plate is provided with a sleeve plate, the sleeve plate is sleeved on the outer side of the guide plate, and the guide plate is fixed between the two support frames.

Preferably, the lantern ring is the ring structure that the inner ring mouth is "protruding" font, and the lantern ring is provided with two sets ofly, and two sets of lantern rings are about the traction plate symmetric distribution, and the oil storage chamber is annular cavity structures, and the interior anchor ring cover in oil storage chamber is equipped with the sponge ring, and the oil drip hole is provided with a plurality ofly, and a plurality of oil drip holes are arranged along the interior anchor ring in oil storage chamber and are distributed.

Preferably, an oil filling port is formed in the outer ring surface of the sleeve ring and communicated with the oil storage cavity, and a leather plug block is arranged inside the oil filling port.

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

according to the vehicle-mounted rainwater port cleaning device provided by the invention, the second screw rod assembly drives the two groups of clamping plates to move in the opposite direction, the two groups of clamping plates are clamped at the tail end of the flat car, the vehicle-mounted installation of the grab type dredging device is realized, the lubricating assembly is additionally arranged on the inner side of the traction plate, the corrugated pipe is additionally arranged on the surface of the traction plate, the corrosion of a rod body of the second screw rod assembly is avoided, the support frame can be selectively installed through the extension support connected with the buckle plate, and the grab type dredging device can be normally placed and used on the ground by being matched with the extension support after being detached from the flat car.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the support frame and the extension bracket of the present invention

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of a clamping plate structure according to the present invention;

FIG. 5 is a schematic view of the plate and collar attachment configuration of the present invention;

FIG. 6 is a schematic view of a collar structure according to the present invention;

fig. 7 is an enlarged view of the structure at B in fig. 6.

In the figure: the device comprises a guide rail frame 1, a translation seat 2, a first screw rod assembly 3, a lifting rack 4, a gear driving assembly 5, a grab bucket assembly 6, a support frame 7, a regulating insert plate 8, a moving seat 9, a locking screw rod 10, a positioning hole 11, a second screw rod assembly 12, a traction plate 13, a clamping plate 14, a sleeve plate 15, a guide plate 16, a sleeve ring 17, an oil storage cavity 18, an oil injection port 19, a sponge ring 20, an oil dripping hole 21, a rubber seal block 22, a sponge block 23, a cotton core 24, bristles 25, a corrugated pipe 26, a limiting plate 27, a buckle plate 28, an extension support 29 and a reinforcing connecting rod 30.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 7, the present invention provides a technical solution: a vehicle-mounted rainwater port dirt cleaning device comprises a guide rail frame 1, a translation seat 2 is connected to the surface of the guide rail frame 1 in a sliding mode, a first lead screw component 3 is arranged on the surface of the guide rail frame 1, the first lead screw component 3 is in threaded connection with the translation seat 2, a lifting rack 4 is connected to the surface of the translation seat 2 in a sliding mode, the lifting rack 4 is connected with a gear driving component 5 in a matching mode, the gear driving component 5 is installed on the surface of the translation seat 2, the guide rail frame 1 is of a 'return' shape plate-shaped structure, the translation seat 2 is of a 'convex' shape cylinder structure, the part, extending out of an inner annular opening of the guide rail frame 1, of the translation seat 2 is penetrated and in threaded connection by a rod body of the first lead screw component 3, the rod body of the first lead screw component 3 is a single-thread lead screw, one end of the rod body of the first lead screw component 3 is installed on the inner annular surface of the guide rail frame 1 through a bearing seat, and the other end of the rod body of the first lead screw component 3 is in transmission connection with a power output end of a first driving motor, the first driving motor is fixed on the outer ring surface of the guide rail frame 1, the grab bucket assembly 6 is arranged at the bottom end of the lifting rack 4, the top surface of the translation seat 2 is provided with an opening, the lifting rack 4 penetrates through the opening, the side wall of the translation seat 2 is provided with a reserved opening, the reserved opening is communicated with the opening, a driving fluted disc of the gear driving assembly 5 is rotatably connected into the reserved opening, and a driver of the gear driving assembly 5 is fixed on the surface of the translation seat 2;

the two groups of support frames 7 are arranged, the two groups of support frames 7 are fixed on the surface of the guide rail frame 1, a second screw rod assembly 12 is arranged between the two groups of support frames 7, the support frames 7 are of a square frame structure with downward openings, the two groups of support frames 7 are symmetrically distributed about the guide rail frame 1, a regulating and controlling inserting plate 8 is inserted into the bottom end of each support frame 7, a plurality of positioning holes 11 are formed in the surface of each regulating and controlling inserting plate 8, locking screws 10 are screwed on the outer walls of the support frames 7, the locking screws 10 penetrate through side plates of the support frames 7 and then are screwed in the positioning holes 11, two groups of traction plates 13 are screwed on rod bodies of the second screw rod assemblies 12, and the traction plates 13 are fixed on the top surfaces of the clamping plates 14;

the surface of the supporting frame 7 is provided with two groups of limiting plates 27, the two groups of limiting plates 27 are vertically distributed, a buckle plate 28 is inserted between the two groups of limiting plates 27, the buckle plate 28 is buckled on one side of the supporting frame 7, the buckle plate 28 is in an Contraband-shaped plate-shaped structure, a connecting screw rod is arranged on a side plate of the buckle plate 28, the connecting screw rod penetrates through the side plate of the buckle plate 28 and then is screwed on the side plate of the supporting frame 7, the surface of the buckle plate 28 is provided with an extension bracket 29, the extension bracket 29 is in an L-shaped plate-shaped structure, the bottom ends of the extension bracket 29 and the regulation and control inserting plate 8 are both provided with a moving seat 9, the bottom surface of the moving seat 9 is provided with a plurality of pulleys, and a reinforcing connecting rod 30 is arranged between the two groups of extension brackets 29;

the lantern ring 17 is arranged on the surface of the traction plate 13, an oil storage cavity 18 is arranged inside the lantern ring 17, an oil dripping hole 21 is formed in the inner annular surface of the oil storage cavity 18, a rubber sealing block 22 and a sponge block 23 are arranged inside the oil dripping hole 21, a cotton core 24 is inserted into the surface of the rubber sealing block 22, bristles 25 are arranged at an inner annular opening of the lantern ring 17, a corrugated pipe 26 is arranged on the surface of the lantern ring 17, the corrugated pipe 26 is sleeved outside a rod body of the second lead screw assembly 12, the rod body of the second lead screw assembly 12 is a double-thread lead screw with the middle symmetrically distributed, one end of the second lead screw assembly 12 is connected to the surface of the support frame 7 through a bearing seat, the other end of the second lead screw assembly 12 penetrates through another support frame 7 and is conventionally connected to the power output end of a second driving motor, the second driving motor is arranged on the surface of another support frame 7, a screw connector is formed in the surface of the traction plate 13, and is connected with the rod body of the second lead screw assembly 12 in a matching manner, grip block 14 is square frame structure, grip block 14's surface is provided with lagging 15, the outside at deflector 16 is established to lagging 15 cover, deflector 16 fixes between two support frames 7, lantern ring 17 is the ring structure that the inner ring mouth is "protruding" font, lantern ring 17 is provided with two sets ofly, two sets of lantern ring 17 are about traction plate 13 symmetric distribution, oil storage chamber 18 is annular cavity structure, the interior anchor ring cover in oil storage chamber 18 is equipped with sponge ring 20, oil drip hole 21 is provided with a plurality ofly, a plurality of oil drip hole 21 are arranged along the interior anchor ring in oil storage chamber 18 and are distributed, oiling mouth 19 has been seted up to the outer anchor ring of lantern ring 17, oiling mouth 19 intercommunication oil storage chamber 18, oiling mouth 19's inside is provided with the leather chock.

Referring to the attached drawing 1, the equipment is pushed to the tail end of the flat car, the lifting height of the support frame 7 is adjusted, specifically, after a loose locking screw 10 is disengaged from a positioning hole 11, the extraction support frame 7 slides up along a regulation inserting plate 8 to the bottom surface of a top plate of a clamping plate 14 and can be lapped on a car plate of the flat car, the back-screwing locking screw 10 is inserted into a corresponding positioning hole 11 to realize locking, the regulation inserting plate 8 is matched with a moving seat 9 to support the equipment, a second screw rod assembly 12 is started to drive two groups of clamping plates 14 to approach towards each other, the clamping plates 14 are clamped on two sides of the car plate to realize the connection of the equipment and the flat car, then after the loose locking screw 10 is disengaged from the positioning hole 11, the moving seat 9 is lifted, after a pulley on the bottom surface of the moving seat 9 is suspended, the locking screw 10 is screwed back to be locked, at the time, the equipment is installed on the flat car, and the flat car can carry the equipment to be transferred, and the equipment is arranged at the tail end of the flat car, so that the equipment does not need to be detached from the flat car when in use.

Referring to fig. 5-7, when the traction plate 13 slides along the double-threaded screw of the second screw assembly 12, the lubricating oil inside the oil storage cavity 18 soaks the sponge ring 20 and the cotton core 24 and then soaks the sponge block 23, the lubricating oil drips from the sponge block 23 on the double-threaded screw to realize the lubricating effect, and the traction plate 13 advances, the brush bristles 25 sweep the dust on the surface of the double-threaded screw, so as to avoid the dust and the lubricating oil from being mixed together to form an agglomeration, the corrugated pipe 26 is protected outside the double-threaded screw, so that the dust adhesion and the surface of the double-threaded screw are reduced, and the oil can be injected into the oil storage cavity 18 by passing through the rubber plug inside the oil injection port 19 by means of the needle tube.

Referring to fig. 2 and 3, when the device is needed to be used alone, the moving seat 9 at the bottom of the supporting frame 7 is lowered to the bottom surface contacted with the pulley, then the second screw rod assembly 12 drives the two groups of clamping plates 14 to move back in a rotating mode, then the device is pushed away from the flat car, in order to improve the stability of the device in use, the buckling plate 28 is buckled on the supporting frame 7 to be fixed, and at the moment, the extending support 29 plays an auxiliary supporting role in the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an on-vehicle type inlet for stom water device of decontaminating which characterized in that: on-vehicle type inlet for stom water device of decontaminating includes:

the device comprises a guide rail frame (1), wherein the surface of the guide rail frame (1) is connected with a translation seat (2) in a sliding manner, the surface of the guide rail frame (1) is provided with a first lead screw component (3), the first lead screw component (3) is in threaded connection with the translation seat (2), the surface of the translation seat (2) is connected with a lifting rack (4) in a sliding manner, the lifting rack (4) is in matched connection with a gear driving component (5), the gear driving component (5) is installed on the surface of the translation seat (2), and the bottom end of the lifting rack (4) is provided with a grab bucket component (6);

the two groups of supporting frames (7) are arranged, the two groups of supporting frames (7) are fixed on the surface of the guide rail frame (1), a second screw rod assembly (12) is arranged between the two groups of supporting frames (7), two groups of traction plates (13) are screwed on a rod body of the second screw rod assembly (12), and the traction plates (13) are fixed on the top surfaces of the clamping plates (14); and

the lantern ring (17), locate the surface of traction plate (13), oil storage chamber (18) have been seted up to the inside of lantern ring (17), oil drip hole (21) have been seted up to the interior anchor ring in oil storage chamber (18), the inside of oil drip hole (21) is provided with rubber seal block (22) and sponge piece (23), and the surface grafting of rubber seal block (22) has cotton core (24), the inner ring mouth of lantern ring (17) is provided with brush hair (25), and the surface of lantern ring (17) is provided with bellows (26), the body of rod outside at second lead screw subassembly (12) is established in bellows (26) cover.

2. The vehicle-mounted type gutter inlet sewage disposal device according to claim 1, wherein: guide rail frame (1) is "return" font platelike structure, translation seat (2) are "protruding" font cylinder structure, the part that translation seat (2) stretched out guide rail frame (1) inner ring mouth is run through and the spiro union by the body of rod of first lead screw subassembly (3), the body of rod of first lead screw subassembly (3) is the single thread lead screw, the interior anchor ring in guide rail frame (1) is installed through the bearing frame to body of rod one end of first lead screw subassembly (3), the power take off end at first driving motor is connected in the body of rod other end transmission of first lead screw subassembly (3), first driving motor fixes the outer anchor ring in guide rail frame (1).

3. The vehicle-mounted type gutter inlet sewage disposal device according to claim 2, wherein: the opening has been seted up to the top surface of translation seat (2), and lifting rack (4) pass the opening, and the lateral wall of translation seat (2) has been seted up and has been reserved the mouth, and reserved mouth and opening communicate with each other, and the drive fluted disc of gear drive subassembly (5) rotates to be connected in reserving the mouth, and the driver of gear drive subassembly (5) is fixed on the surface of translation seat (2).

4. The vehicle-mounted type gutter inlet sewage disposal device according to claim 1, wherein: support frame (7) are opening square frame structure down, and two sets of support frames (7) are about guide rail frame (1) symmetric distribution, and it has regulation and control picture peg (8) to peg graft in the bottom of support frame (7), and a plurality of locating holes (11) have been seted up on the surface of regulation and control picture peg (8), and the outer wall spiro union of support frame (7) has locking screw (10), and the spiro union is in locating hole (11) behind the curb plate that locking screw (10) run through support frame (7).

5. The vehicle-mounted type gutter inlet sewage disposal device according to claim 4, wherein: the surface of support frame (7) is provided with two sets of limiting plate (27), and two sets of limiting plate (27) are upper and lower and distribute, and it has buckle (28) to peg graft between two sets of limiting plate (27), and buckle (28) are detained in one side of support frame (7), and buckle (28) are "Contraband" font platelike structure, are provided with connecting screw on the curb plate of buckle (28), and the spiro union is on the curb plate of support frame (7) behind the curb plate that connecting screw runs through buckle (28).

6. The vehicle-mounted type gutter inlet sewage disposal device according to claim 5, wherein: the surface of buckle (28) is provided with extension support (29), and extension support (29) are "L" shaped plate column structure, and the bottom of extension support (29) and regulation and control picture peg (8) all is provided with removes seat (9), and the bottom surface of removing seat (9) is provided with a plurality of pulleys, is provided with between two sets of extension supports (29) and consolidates connecting rod (30).

7. The vehicle-mounted type gutter inlet sewage disposal device according to claim 1, wherein: the rod body of second lead screw subassembly (12) is the double thread lead screw of middle symmetric distribution, and the surface at support frame (7) is connected through the bearing frame to the one end of second lead screw subassembly (12), and the other end of second lead screw subassembly (12) runs through tradition behind another support frame (7) and connects the power take off end at second driving motor, and second driving motor installs the surface at another support frame (7).

8. The vehicle-mounted type gutter inlet sewage disposal device according to claim 7, wherein: the surface of the traction plate (13) is provided with a screw connector, the screw connector is connected with a rod body of the second screw rod assembly (12) in a matched mode, the clamping plate (14) is of a square frame structure, the surface of the clamping plate (14) is provided with a sleeve plate (15), the sleeve plate (15) is sleeved on the outer side of the guide plate (16), and the guide plate (16) is fixed between the two support frames (7).

9. The vehicle-mounted type gutter inlet sewage disposal device according to claim 8, wherein: the lantern ring (17) are the ring structure that the inner ring mouth is "protruding" font, and lantern ring (17) are provided with two sets ofly, and two sets of lantern rings (17) are about traction plate (13) symmetric distribution, and oil storage chamber (18) are annular cavity structures, and the interior anchor ring cover in oil storage chamber (18) is equipped with sponge ring (20), and oil drip hole (21) are provided with a plurality ofly, and a plurality of oil drip hole (21) are arranged along the interior anchor ring in oil storage chamber (18) and are distributed.

10. The vehicle-mounted type gutter inlet sewage disposal device according to claim 9, wherein: an oil filling port (19) is formed in the outer ring surface of the sleeve ring (17), the oil filling port (19) is communicated with the oil storage cavity (18), and a leather plug block is arranged inside the oil filling port (19).