CN218992094U

CN218992094U - High-pressure rotary joint of dust-proof cover

Info

Publication number: CN218992094U
Application number: CN202223210685.1U
Authority: CN
Inventors: 王关生; 王洁; 黄德福
Original assignee: Ganlong Dragon Hydraulic Machinery Co ltd
Current assignee: Ganlong Dragon Hydraulic Machinery Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-09
Anticipated expiration: 2032-12-01

Abstract

The utility model relates to the technical field of high-pressure rotary joints of dust-proof covers, in particular to a high-pressure rotary joint of a dust-proof cover, which comprises a cover body, wherein two ends of the cover body are symmetrically connected with two groups of connecting rings, and the connecting rings are connected with a screw joint mechanism with a detachable function; the lower end of the limiting rod is extruded by the jack port, the arc surface of the lower end of the limiting rod slides along the jack port, the limiting rod pushes the rectangular shaft to slide along the rectangular hole, the U-shaped elastic sheet is extruded until the arc surface staggers the jack port, the lower end of the limiting rod is clamped with the clamping groove under the elastic action of the U-shaped elastic sheet, the butt joint of the screw joint mechanism and the connecting ring is realized, and the limiting rod is limited in the jack through the elastic force of the U-shaped elastic sheet.

Description

High-pressure rotary joint of dust-proof cover

Technical Field

The utility model relates to the technical field of high-pressure rotary joints of dust-proof covers, in particular to a high-pressure rotary joint of a dust-proof cover.

Background

The shock absorber dust-proof cover is used as a protection piece of the shock absorber, can be manually installed on the upper and lower installation positions of the shock absorber, has no material damage, and has a corrugated pipe shape, so that the dust-proof cover can correspondingly stretch and compress along with a vehicle body in a bumpy road process, does not interfere with other parts on the shock absorber and the whole vehicle, and prevents external dust, water and other impurities from entering the dust-proof cover, thereby achieving the effect of protecting parts such as a cylinder shaft, a damping spring and the like in the dust-proof cover.

The dust-proof cover comprises a bellows-shaped cover body, two groups of screw-connection sleeves are fixedly connected at two ends of the cover body, one group of screw-connection sleeves are tightly screwed at the end part of the shock absorber oil cylinder under high pressure, the other group of screw-connection sleeves are tightly screwed at the end part of the cylinder shaft, parts such as the cylinder shaft and the damping spring are protected by the cover body mainly, the cover body is subjected to invasion of external dust, water and other impurities for a long time, and meanwhile, the cover body is correspondingly stretched and compressed along with a vehicle body, so that the cover body can be damaged after long-term use, the damage needs to be replaced, and the whole dust-proof cover needs to be replaced once replaced, so that the undamaged screw-connection sleeves are directly scrapped, and resource waste is caused.

Disclosure of Invention

The utility model aims to provide a high-pressure rotary joint of a dust-proof cover, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-pressure rotary joint of the dust-proof cover comprises a cover body, wherein two ends of the cover body are symmetrically connected with two groups of connecting rings, and the connecting rings are connected with a screw joint mechanism with a detachable function;

the screw joint mechanism comprises a screw joint main body, four groups of rectangular grooves are formed in the outer ring of the screw joint main body at equal angles, a limiting rod is arranged in each rectangular groove, one side of the limiting rod is fixedly connected with a rectangular shaft, and a U-shaped elastic sheet is sleeved on each rectangular shaft.

Preferably, the connecting ring comprises a ring body, four groups of jacks are arranged on the ring body at equal angles, and clamping grooves are formed in one side of each jack.

Preferably, rectangular holes are formed in the rectangular grooves and are connected with the rectangular shaft in a sliding mode.

Preferably, the U-shaped elastic sheet is fixed between the limit rod and the inner wall of the rectangular groove, and the lower end part of the limit rod is provided with an arc-shaped surface.

Preferably, the limiting rod is inserted into the jack, and the lower end part of the limiting rod is clamped into the clamping groove.

Preferably, one end of the ring body is fixedly connected with the end part of the cover body, and the other end of the ring body is inserted into the screw joint main body.

Compared with the prior art, the utility model has the beneficial effects that:

1. the two groups of screw joint mechanisms are respectively in butt joint with the connecting rings at two ends of the cover body, in the process that the screw joint main body is inserted into the ring body, four groups of limiting rods in the screw joint main body are respectively inserted into four groups of jacks on the ring body, in the process that the limiting rods are inserted into the jacks, the lower end parts of the limiting rods are extruded by jack ports, at the moment, the arc-shaped surface of the lower end parts of the limiting rods slides against the jack ports, meanwhile, the limiting rods push the rectangular shafts to slide along the rectangular holes, the U-shaped elastic pieces are extruded until the arc-shaped surface staggers the jack ports, under the elastic action of the U-shaped elastic pieces, the lower end parts of the limiting rods are clamped into clamping grooves, so that the screw joint mechanisms are in butt joint with the connecting rings, and because the limiting rods are limited in the jacks through the elastic force of the U-shaped elastic pieces, when the cover body needs to be replaced, workers can separate the screw joint mechanisms from the connecting rings, so that the screw joint mechanisms and the cover body can be disassembled, the replacement of the screw joint mechanisms is avoided, and resources are saved.

2. Secondly, when the dust shield is required to be installed on the shock absorber, the dust shield is sleeved on the shock absorber, and then the two groups of screw joint mechanisms are rotated simultaneously, so that the screw joint main body is screwed on the shock absorber at high pressure.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

FIG. 2 is a schematic cross-sectional view of a screw joint mechanism and connecting ring combination of the present utility model.

Fig. 3 is an enlarged view at a in fig. 2.

In the figure: 1. a cover body; 2. a connecting ring; 3. a screw joint mechanism; 301. a screw joint body; 302. rectangular grooves; 3021. a rectangular hole; 303. a limit rod; 3031. an arc surface; 304. a rectangular shaft; 305. a U-shaped spring plate; 201. a ring body; 202. a jack; 203. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: a high-pressure rotary joint of a dust-proof cover comprises a cover body 1, two groups of connecting rings 2 are symmetrically connected at two ends of the cover body 1, the connecting rings 2 are connected with a screw joint mechanism 3 with a detachable function, the screw joint mechanism 3 comprises a screw joint main body 301, four groups of rectangular grooves 302 are formed in the outer ring of the screw joint main body 301 at equal angles, a limiting rod 303 is arranged in the rectangular grooves 302, one side of the limiting rod 303 is fixedly connected with a rectangular shaft 304, a U-shaped elastic sheet 305 is sleeved on the rectangular shaft 304, the connecting rings 2 comprise a ring body 201, four groups of jacks 202 are formed in the upper side of the ring body 201 at equal angles, a clamping groove 203 is formed in one side of the jacks 202, a rectangular hole 3021 is formed in the rectangular groove 302, the rectangular hole 3021 is slidingly connected with a rectangular shaft 304, the U-shaped elastic sheet 305 is fixed between the limiting rod 303 and the inner wall of the rectangular groove 302, an arc-shaped surface 3031 is arranged at the lower end of the limiting rod 303 is inserted into the jacks 202, the lower end of the limiting rod 303 is clamped with the clamping groove 203, one end of the ring body 201 is fixedly connected with the end of the cover body 1, the other end of the ring body 201 is inserted into the threaded joint main body 301, wherein the U-shaped elastic sheet 305 is made of stainless steel with good elasticity and toughness, the U-shaped elastic sheet 305 is fixed between the limiting rod 303 and the inner wall of the rectangular groove 302 in a welding mode, when the dust-proof cover needs to be installed, two groups of threaded joint mechanisms 3 are respectively butted with the connecting rings 2 at the two ends of the cover body 1, during the process of inserting the threaded joint main body 301 into the ring body 201, four groups of limiting rods 303 on the threaded joint main body 301 are respectively inserted into four groups of jacks 202 on the ring body 201, during the process of inserting the limiting rods 303 into the jacks 202, the lower end parts of the limiting rods 303 are extruded by the ports of the jacks 202, at the moment, the arc-shaped surfaces 3031 at the lower end parts of the limiting rods 303 slide along the ports of the jacks 202, meanwhile, the limiting rods 303 push the rectangular shafts 304 to slide along the rectangular holes 3021, and extrude the U-shaped elastic sheet 305 until the arc-shaped elastic sheets 3031 stagger the ports of the ports 202, under the elastic action of the U-shaped elastic sheet 305, the lower end part of the limiting rod 303 is clamped with the clamping groove 203, so that the butt joint of the screw joint mechanism 3 and the connecting ring 2 is realized, because the limiting rod 303 is limited in the jack 202 through the elastic force of the U-shaped elastic sheet 305, when the cover body 1 needs to be replaced, a worker can forcefully separate the screw joint mechanism 3 from the connecting ring 2, so that the screw joint mechanism 3 and the cover body 1 can be detached, the replacement of the screw joint mechanism 3 is avoided, resources are saved, and secondly, when the dust separation cover is required to be installed on the shock absorber, the dust separation cover is sleeved on the shock absorber, then, the two groups of screw joint mechanisms 3 are simultaneously rotated, so that the screw joint main body 301 is screwed on the shock absorber at high pressure, and because the threaded hole on the screw joint main body 301 is screwed with the shock absorber, and the end part of the rectangular shaft 304 is close to the screwed joint of the shock absorber, so that the rectangular shaft 304 is blocked and cannot move, and the limiting rod 303 cannot be separated from the jack 202, so that the connection between the screw joint mechanism 3 and the connecting ring 2 is more stable.

In the use process, two sets of screw joint mechanisms 3 are respectively in butt joint with the connecting rings 2 at two ends of the cover body 1, in the process of inserting the ring body 201 into the screw joint main body 301, four sets of limiting rods 303 on the screw joint main body 301 are respectively inserted into four sets of jacks 202 on the ring body 201, in the process of inserting the limiting rods 303 into the jacks 202, the lower end parts of the limiting rods 303 are extruded by the ports of the jacks 202, at the moment, the arc-shaped surface 3031 of the lower end parts of the limiting rods 303 slides against the ports of the jacks 202, meanwhile, the limiting rods 303 push the rectangular shafts 304 to slide along the rectangular holes 3021, and the U-shaped elastic sheets 305 are extruded until the arc-shaped surfaces 3031 stagger the ports of the jacks 202, under the elastic action of the U-shaped elastic sheets 305, the lower end parts of the limiting rods 303 are clamped into clamping grooves 203, so that the screw joint mechanisms 3 are in butt joint with the connecting rings 2, when the dust-proof cover is required to be installed on the shock absorber, then the two sets of screw joint mechanisms 3 are rotated at the same time, the lower end parts of the screw joint main body 301 are screwed onto the shock absorber, and the threaded holes 304 are screwed tightly, and the end parts of the rectangular shafts 304 are in the shock absorber, and the positions of the rectangular shafts are prevented from moving.

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

Claims

1. The utility model provides a high pressure rotary joint of dust separation cover, includes the cover body (1), two group's go-between (2) are connected to cover body (1) both ends symmetry, its characterized in that: the connecting ring (2) is connected with a screw joint mechanism (3) with a detachable function;

the screw joint mechanism (3) comprises a screw joint main body (301), four groups of rectangular grooves (302) are formed in the outer ring of the screw joint main body (301) at equal angles, a limiting rod (303) is arranged in each rectangular groove (302), one side of the limiting rod (303) is fixedly connected with a rectangular shaft (304), and a U-shaped elastic sheet (305) is sleeved on each rectangular shaft (304).

2. A high pressure swivel for a dust cap as set forth in claim 1 wherein: the connecting ring (2) comprises a ring body (201), four groups of jacks (202) are equiangularly arranged on the ring body (201), and clamping grooves (203) are formed in one side in the jacks (202).

3. A high pressure swivel for a dust cap as set forth in claim 1 wherein: a rectangular hole (3021) is formed in the rectangular groove (302), and the rectangular hole (3021) is connected with the rectangular shaft (304) in a sliding mode.

4. A high pressure swivel for a dust cap as set forth in claim 1 wherein: the U-shaped elastic sheet (305) is fixed between the limiting rod (303) and the inner wall of the rectangular groove (302), and an arc-shaped surface (3031) is arranged at the lower end part of the limiting rod (303).

5. A high pressure swivel for a dust cap as set forth in claim 1 wherein: the limiting rod (303) is inserted into the inserting hole (202), and the lower end part of the limiting rod (303) is clamped into the clamping groove (203).

6. A high pressure swivel for a dust cap as claimed in claim 2, wherein: one end of the ring body (201) is fixedly connected with the end part of the cover body (1), and the other end of the ring body (201) is inserted into the screw joint main body (301).