CN220416501U - Hydraulic joint with protective structure - Google Patents

Abstract

The utility model relates to the technical field of hydraulic connectors, in particular to a hydraulic connector with a protection structure, which comprises a male connector and a female connector, wherein the male connector comprises a first connecting end, the female connector comprises a first butt joint end, the first connecting end and the first butt joint end can be mutually and axially inserted and matched to realize connection, the protection structure comprises a convex ring and a buckling assembly, and the convex ring is coaxially fixed on the periphery of the first connecting end; the buckling component comprises a tensioning piece and at least one support arm, the support arm is rotatably arranged on the first butt joint end, the support arm comprises a buckling end and a movable end, and the buckling end comprises a convex part which protrudes inwards and is used for hooking the outer side wall of the convex ring; the tensioning piece can axially move along the first butt joint end and be locked; the first butt joint end and the first connecting end are mutually clamped by the support arm and the convex ring in the axial direction, so that the axial relative positioning relation of the male head and the female head is further reinforced, the male head and the female head are not easy to loosen, and the protection effect is achieved.

Description

Hydraulic joint with protective structure

Technical Field

The utility model relates to the technical field of pipeline connectors, in particular to a hydraulic connector with a protection structure.

Background

The hydraulic connector is mainly used in a hydraulic system and is used for realizing connection between hydraulic equipment and a pipeline.

The traditional hydraulic joint mainly comprises a male head and a female head, one end of the male head is used for being connected to hydraulic equipment, the other end of the male head is used for being matched with the female head to achieve connection, the female head is mainly used for being preassembled on a pipeline, and when the connection of the pipeline and the hydraulic equipment is needed to be achieved, the female head is installed at the end part of the male head.

In the related art, in order to facilitate connection of the male head and the female head, the male head and the female head are generally connected with each other in a threaded connection mode, that is, threaded sections capable of being matched with each other are arranged at the end parts of the male head and the female head, and when the male head and the female head are connected, the male head and the female head are screwed together.

Although the threaded-fit hydraulic joint can connect pipelines and equipment, under the use environment of large hydraulic pressure, under the high-pressure impact of liquid, the male head and the female head are easy to deflect relatively, so that the connection fit between the male head and the female head is loose, potential safety hazards are easy to cause, and the threaded-fit hydraulic joint is still to be improved.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, an object of the present utility model is to provide a hydraulic joint with a protection structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the hydraulic connector with the protection structure comprises a male connector and a female connector, wherein the male connector comprises a first connecting end, the female connector comprises a first butt joint end, the first connecting end and the first butt joint end can be mutually and axially inserted and connected, the protection structure comprises a convex ring and a buckling assembly, and the convex ring is coaxially fixed on the periphery of the first connecting end; the buckling component comprises a tensioning piece and at least one support arm, the support arm is rotatably arranged on the first butt joint end, the support arm takes a rotation point of the support arm as a fulcrum to form a buckling end and a movable end, and the buckling end comprises a convex part which protrudes inwards and is used for hooking the outer side wall of the convex ring; the tensioning piece can move axially along the first butt joint end and be locked, and when the tensioning piece moves axially towards one side close to the male head, the movable end turns outwards under the extrusion of the tensioning piece.

Compared with the prior art, the scheme has the advantages that:

in this scheme, through support arm and the tight piece that rises on first butt joint, set up the bulge loop on first link, so after male head and female head realize inserting through first link and first butt joint, can make the tight piece that rises to be close to support arm one side and remove through axial displacement tight piece, along with the removal of tight piece that rises, it can constantly outwards extrude the expansion end of support arm, make the expansion end outwards overturn, the buckling end of corresponding support arm can inwards overturn this moment, the convex part of final buckling end can be hooked and supported at the lateral wall of bulge loop, so first butt joint end and first link just are blocked each other by support arm and bulge loop in the axial, further the axial relative positioning relation of male head and female head has been consolidated, make the two difficult not hard up, the protection effect has been played.

Preferably, the tensioning member comprises a screw cap which is screw-fitted on the outer periphery of the female head.

Preferably, the outer circumference of one end of the spiral cover, which is close to the support arm, is outwards protruded to form the extrusion part.

Preferably, the outer circumference of the screw cap has friction ribs.

Preferably, the side wall of one side of the convex ring far away from the female head is in an inclined surface structure.

Preferably, the arms comprise at least two arms and the at least two arms are distributed over the first butt end along a circumferential array of the first butt end.

Preferably, the first butt end and the first connecting end are in threaded fit to realize insertion.

Preferably, a sealing ring is embedded between the end side of the first butt joint end and the convex ring.

Additional advantages and effects of the utility model are set forth in the detailed description and drawings.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic view of the assembled structure of the present utility model;

fig. 3 is an enlarged view of a portion a in fig. 2;

fig. 4 is a partial cross-sectional view of the present utility model in an assembled state.

Detailed Description

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Referring to fig. 1-4, the present embodiment provides a hydraulic joint with a protection structure, which includes a male head 1 and a female head 2, wherein the male head 1 and the female head 2 can be connected to each other to realize assembly.

As shown in fig. 1, the male head 1 includes a first connection end 11 and a second connection end 12, where the second connection end 12 is used for being connected to a hydraulic device, and the outer periphery of the second connection end is in a threaded structure so as to realize threaded butt joint with a mounting port of the hydraulic device. In addition, in order to facilitate the fixing/rotating of the male head 1 by using a tool such as a wrench, a substantially hexagonal nut structure 13 is further fixed at a middle position of the male head 1 for the jaw force of the wrench.

The female connector 2 includes a first butt end 21 and a second butt end 22, where the second butt end 22 is mainly used to connect with a pipeline, and may be connected with the pipeline by a threaded structure or be connected with the pipeline by a flange structure, which is not limited herein.

The first connection end 11 of the male head 1 and the first butt end 21 of the female head 2 can be mutually axially inserted to realize connection, and as a specific embodiment, the first connection end 11 and the first butt end 21 are connected in a threaded fit mode, specifically, the first connection end 11 can be axially inserted into the first butt end 21, an external thread is arranged on the periphery of the first connection end 11, an internal thread is arranged on the inner periphery of the first butt end 21, and the internal thread and the external thread are mutually matched, so that the first butt end 21 and the first connection end 11 can be screwed together as long as the first butt end 21 and the first connection end 11 are relatively rotated.

In order to prevent the first connection end 11 and the first butt end 21 from loosening due to the impact of the high-pressure liquid after the butt connection, in this embodiment, the protection structure includes a collar 14 and a fastening assembly, and the collar 14 is coaxially fixed on the outer periphery of the first connection end 11, preferably, the collar 14 is integrally formed with the first connection end 11.

The buckling component comprises a tensioning piece and at least one support arm 3, preferably at least 2 support arms 3 are arranged, and the at least two support arms 3 are distributed on the first abutting end 21 along the circumferential array of the first abutting end 21; in the present embodiment, the case of using 3 arms 3 is specifically shown.

Since the structure of each arm 3 is substantially the same, the present embodiment specifically describes one of the arms 3 as an example:

as shown in fig. 3 and 4, the support arm 3 is rotatably disposed on the first docking end 21, and one end of the support arm 3 is a fastening end 32 and the other end is a movable end 31 with the rotation point thereof as a fulcrum; the fastening end 32 is located at a side close to the male head 1, so that the whole support arm 3 corresponds to a lever structure taking the rotation point thereof as a fulcrum, and the fastening end 32 and the movable end 31 are respectively two ends of the lever structure.

The fastening end 32 includes an inwardly projecting protrusion 321 for hooking against the outer sidewall of the collar 14, and in particular, the fastening end 32 projects inwardly to form the protrusion 321.

The tensioning member can axially move along the first abutting end 21 and be locked, and when the tensioning member axially moves towards the side close to the male head 1, the movable end 31 is outwards turned under the extrusion of the tensioning member.

So after male head 1 and female head 2 realize inserting the joining in marriage through first link 11 and first butt joint end 21, can make the tight piece that rises through axial displacement to be close to support arm 3 one side and remove, along with the removal of tight piece, the tight piece that rises can insert constantly between the periphery of expansion end 31 and first butt joint end 21, along with the depth of tight piece that rises, the tight piece that rises can continuously outwards extrude the expansion end 31 of support arm 3 for expansion end 31 outwards overturns, the tight end 32 of corresponding support arm 3 can inwards overturn this moment, the convex part 321 of tight end 32 of final tight end can hook at the lateral wall of bulge loop 14, so first butt joint end 21 and first link 11 just are blocked each other by support arm 3 and bulge loop 14 in the axial, further strengthened the axial relative positioning relation of male head 1 and female head 2, make the two difficult loose, the guard effect has been played.

In addition, in order to enable the fastening end 32 to achieve the hooking of the protrusion 321 against the outer sidewall of the collar 14 under a smaller overturning angle, in this embodiment, a sidewall of the collar 14 away from the female head 2 (i.e., an outer sidewall of the collar 14) is in a slant structure.

In order to realize that the tensioning member can axially move and lock along the first abutting end 21, in this embodiment, the tensioning member comprises a spiral cover 4, and the spiral cover 4 is in threaded fit on the periphery of the female head 2, so that the spiral cover 4 can axially move only by rotating the spiral cover 4, and can be locked at the current position when not rotating; the specific screw thread matching mode is as follows:

as shown in fig. 1, the first abutting end 21 has an external thread section 23 on the outer periphery and an internal thread section 43 fitted with the internal peripheral wall of the screw cap 4; thus, by simply rotating the screw cap 4, the screw cap 4 can be axially moved by the engagement of the internal thread section 43 and the external thread section 23.

In order to enable the screw cap 4 to press the movable end 31 to turn outwards more quickly, in this embodiment, the outer periphery of one end of the screw cap 4 near the support arm 3 is protruded outwards to form a pressing portion 41.

In addition, in order to facilitate the manual rotation of the cap 4, in this embodiment, the outer periphery of the cap 4 has a friction ridge 42, and the friction ridge 42 can increase the friction between the hand and the cap 4 to prevent the hand from slipping when the cap 4 is rotated.

Of course, in order to improve the tightness of the first connection end 11 and the first butt end 21 in the connection state, in this embodiment, as shown in fig. 4, a sealing ring 5 is embedded between the end side of the first butt end 21 and the convex ring 14, and in the assembled state, the male head 1 and the female head 2, the sealing ring 5 is pressed between the first butt end 21 and the inner side wall of the convex ring 14 to realize sealing.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (8)

1. The hydraulic connector with the protection structure comprises a male connector and a female connector, wherein the male connector comprises a first connecting end, the female connector comprises a first abutting end, and the first connecting end and the first abutting end can be mutually and axially inserted and connected, and the hydraulic connector is characterized in that the protection structure comprises a convex ring and a buckling assembly, and the convex ring is coaxially fixed on the periphery of the first connecting end; the buckling component comprises a tensioning piece and at least one support arm, the support arm is rotatably arranged on the first butt joint end, the support arm takes a rotation point of the support arm as a fulcrum to form a buckling end and a movable end, and the buckling end comprises a convex part which protrudes inwards and is used for hooking the outer side wall of the convex ring; the tensioning piece can move axially along the first butt joint end and be locked, and when the tensioning piece moves axially towards one side close to the male head, the movable end turns outwards under the extrusion of the tensioning piece.

2. The hydraulic fitting with protective structure of claim 1, wherein the tension member comprises a screw cap that is threadedly engaged on the outer periphery of the female fitting.

3. The hydraulic fitting with guard structure of claim 2, wherein the screw cap is formed with an extrusion portion protruding outward near an outer periphery of one end of the arm.

4. A hydraulic fitting with a protective structure according to claim 2 or 3, characterized in that the screw cap has friction ridges on its outer periphery.

5. The hydraulic fitting with protective structure of claim 1, wherein a side wall of the collar remote from the female head is beveled.

6. The hydraulic fitting with protective structure of claim 1 wherein said arms comprise at least two and said at least two arms are distributed on the first mating end along a circumferential array of the first mating end.

7. The hydraulic fitting with protective structure of claim 1, wherein the first mating end and the first connecting end are threadably engaged to effect mating.

8. The hydraulic fitting with protective structure of claim 1, wherein a seal ring is embedded between the end side of the first mating end and the collar.