CN210117746U

CN210117746U - Anti-drop hydraulic pipe connector for excavator

Info

Publication number: CN210117746U
Application number: CN201821705905.9U
Authority: CN
Inventors: 杨建波
Original assignee: Shandong Shuizong Electrical And Mechanical Engineering Co Ltd
Current assignee: Shandong Shuizong Electrical And Mechanical Engineering Co Ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2020-02-28
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses an anticreep hydraulic pressure union coupling for excavator, the inner wall of liquid boss glues and is equipped with annular rubber pad, the top cover that is located hydraulic pressure oil pipe on the connecting piece body is equipped with the sealed cell body of column, the connecting piece body passes the circular logical groove on the sealed cell body of column, the fixed stopper that is equipped with in the outside that the edge of connecting piece body is located the sealed cell body of column, the edge of the sealed cell body of column is equipped with L shape joint pole through the hinged-support activity, L shape joint pole and the mutual joint of rectangle draw-in groove that is located movable ring edge, movable ring movable sleeve establishes the outer wall at hydraulic pressure oil pipe, the movable ring passes through the spring and fixes the spacing protruding fixed connection at hydraulic pressure oil pipe. The utility model discloses in the in-service use, the mutual joint of rectangle draw-in groove on L shape joint pole and the activity ring to can prevent that the sealed cell body of column from droing, and the sealed cell body of column can block the annular arch on the connecting piece body, thereby prevent that the connecting piece body from droing.

Description

Anti-drop hydraulic pipe connector for excavator

Technical Field

The utility model relates to a hydraulic pressure union coupling technical field specifically is an anticreep hydraulic pressure union coupling for excavator.

Background

The traditional hydraulic pipe is connected with a connecting piece in a screw joint sealing mode, but the traditional hydraulic pipe still has the following defects in practical use:

1. on one hand, the screw connection mode is labor-consuming, so that the installation and the disassembly are inconvenient;

2. and the pressure that hydraulic pressure pipe and connecting piece junction can bear has certain limit, if intraductal pressure is too big, then have the hidden danger of breaking away hydraulic pressure pipe and connecting piece to make the connecting piece drop from the hydraulic pressure pipe and cause and reveal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticreep hydraulic pressure union coupling for excavator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-drop hydraulic pipe connecting piece for an excavator comprises a hydraulic oil pipe and a connecting piece body, wherein a conical necking is arranged inside the hydraulic oil pipe, the connecting piece body is inserted into an upper port of the hydraulic oil pipe, a conical surface matched with the conical necking is arranged at the bottom of the connecting piece body, an annular bulge is integrally formed at the edge of the outer wall of the connecting piece body and is positioned in a boss at the top end of the hydraulic oil pipe, an annular rubber pad is adhered to the inner wall of the boss, the tangent plane of the annular rubber pad is of an L-shaped structure, a columnar sealing groove body is sleeved at the top end of the hydraulic oil pipe on the connecting piece body, the connecting piece body penetrates through a circular through groove on the columnar sealing groove body, a limiting block is fixedly arranged at the edge of the connecting piece body, the L-shaped clamping rod is movably arranged at the edge of the columnar, l shape joint pole and the mutual joint of rectangle draw-in groove that is located the movable ring edge, movable ring movable sleeve is established at hydraulic pressure oil pipe's outer wall, the movable ring passes through spring and fixed welding at the spacing protruding fixed connection at hydraulic pressure oil pipe edge, spacing protruding inboard that is located the movable ring.

Preferably, the inner wall of the conical necking tightly attached to the conical surface of the connecting piece body is provided with a plurality of groups of annular grooves, and annular rubber rings are embedded in the annular grooves.

Preferably, the plane of the inner wall of the annular rubber ring is parallel to the conical surface of the connecting piece body, the inner wall of the annular rubber ring is provided with an annular rubber bulge, and the inner wall of the annular rubber bulge is in close contact with the outer wall of the conical surface at the bottom of the connecting piece body.

Preferably, the edge of the cylindrical sealing groove body, which is located on the circular through groove, is provided with a rectangular through groove, the rectangular through groove is communicated with the circular through groove, and the size of the rectangular through groove is larger than that of the limiting block.

Preferably, the limiting block is of a rectangular block structure, and the distance between the inner side face of the limiting block and the outer side face of the annular bulge is larger than the thickness of the top cover of the columnar sealing groove body.

Preferably, the tip of L shape joint pole is equipped with the column cavity, the inside of column cavity is equipped with the column arch, the fixed solid fixed ring that is equipped with in the inside that lies in the column cavity in the column arch, the protruding below cover that lies in solid fixed ring of column is equipped with the spring.

Preferably, the protruding tip of column and the mutual joint of circular slot that is located activity ring outside surface, circular slot is equipped with the multiunit, the multiunit circular slot is the equidistance annular arrangement on the outside surface of activity ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the structure sets up rationally, and is functional strong, has following advantage:

1. in the practical use process of the utility model, the L-shaped clamping rod and the rectangular clamping groove on the movable ring are mutually clamped, so that the columnar sealing groove body can be prevented from falling off, and the columnar sealing groove body can block the annular bulge on the connecting piece body, so that the connecting piece body is prevented from falling off;

2. the movable ring is fixedly connected with the limiting bulge positioned on the outer wall of the hydraulic oil pipe through the spring, so that the spring pushes the movable ring to move downwards, the columnar sealing groove body is tightly pressed at the upper port of the hydraulic oil pipe, and the connection between the hydraulic oil pipe and the connecting piece body is firmer;

3. the inner wall of the conical necking is provided with an annular rubber ring, so that the sealing property between the hydraulic oil pipe and the connecting piece body can be improved.

Drawings

Fig. 1 is a sectional view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the point B in FIG. 1 according to the present invention;

fig. 4 is a schematic structural view of a columnar sealing groove body.

In the figure: hydraulic pressure oil pipe 1, rectangle draw-in groove 2, loose ring 3, L shape joint pole 4, hinged-support 5, the sealed cell body of column 6, circular logical groove 7, connecting piece body 8, stopper 9, rectangle logical groove 10, conical throat 11, annular groove 12, annular rubber circle 13, annular rubber arch 14, circular draw-in groove 15, column arch 16, solid fixed ring 17, column cavity 18, annular arch 19, annular rubber pad 20, boss 21, spacing arch 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: an anti-drop hydraulic pipe connecting piece for an excavator comprises a hydraulic oil pipe 1 and a connecting piece body 8, wherein a conical necking 11 is arranged inside the hydraulic oil pipe 1, the connecting piece body 8 is inserted into an upper port of the hydraulic oil pipe 1, the bottom of the connecting piece body 8 is provided with a conical surface matched with the conical necking 11, the edge of the outer wall of the connecting piece body 8 is integrally formed with an annular bulge 19, the annular bulge 19 is positioned in a boss 21 at the top end of the hydraulic oil pipe 1, the inner wall of the boss 21 is adhered with an annular rubber pad 20, the tangent plane of the annular rubber pad 20 is of an L-shaped structure, a columnar sealing groove body 6 is sleeved on the top end of the hydraulic oil pipe 1 on the connecting piece body 8, the connecting piece body 8 penetrates through a circular through groove 7 on the columnar sealing groove body 6, a limit block 9 is fixedly arranged at the edge of the connecting piece body 8 at the outer side of the, l shape joint pole 4 and the mutual joint of rectangle draw-in groove 2 that is located the edge of movable ring 3, the outer wall at hydraulic pressure oil pipe 1 is established to movable ring 3 activity cover, and movable ring 3 passes through spring and fixed welding and fixes the spacing arch 22 fixed connection at hydraulic pressure oil pipe 1 edge, and spacing arch 22 is located the inboard of movable ring 3.

Further, the inner wall of the conical necking 11 tightly attached to the conical surface of the connecting piece body 8 is provided with a plurality of groups of annular grooves 12, and annular rubber rings 13 are embedded in the annular grooves 12;

furthermore, the plane of the inner wall of the annular rubber ring 13 is parallel to the conical surface of the connecting piece body 8, so that the annular rubber ring 13 is better attached to the conical surface of the connecting piece body 8, the inner wall of the annular rubber ring 13 is provided with an annular rubber bulge 14, and the inner wall of the annular rubber bulge 14 is in close contact with the outer wall of the conical surface at the bottom of the connecting piece body 8;

further, a rectangular through groove 10 is formed in the edge, located at the circular through groove 7, of the columnar sealing groove body 6, the rectangular through groove 10 is communicated with the circular through groove 7, and the size of the rectangular through groove 10 is larger than that of the limiting block 9, so that the limiting block 9 can penetrate through the rectangular through groove 10;

furthermore, the limiting block 9 is a rectangular block-shaped structure, and the distance between the inner side surface of the limiting block 9 and the outer side surface of the annular protrusion 19 is larger than the thickness of the top cover of the columnar sealing groove body 6;

furthermore, a columnar cavity 18 is formed in the end portion of the L-shaped clamping rod 4, a columnar protrusion 16 is arranged inside the columnar cavity 18, a fixing ring 17 is fixedly arranged inside the columnar cavity 18 on the columnar protrusion 16, a spring is sleeved below the fixing ring 17 on the columnar protrusion 16, the columnar protrusion 16 has elasticity due to the spring, when the L-shaped clamping rod 4 rotates downwards, the columnar protrusion 16 can be clamped inside the circular clamping groove 15, and meanwhile, the columnar protrusion 16 can tightly support the bottom of the circular clamping groove 15, so that clamping is firmer;

furthermore, the end of the columnar protrusion 16 is clamped with a plurality of circular clamping grooves 15 on the outer side surface of the movable ring 3, the circular clamping grooves 15 are provided with a plurality of groups, and the groups of circular clamping grooves 15 are annularly arranged on the outer side surface of the movable ring 3 at equal intervals.

The working principle is as follows: in the practical installation process of the utility model, the connecting piece body 8 is firstly inserted into the conical reducing opening 11 in the hydraulic oil pipe 1, so that the conical surface at the bottom end of the connecting piece body 8 is attached to the inner wall of the conical reducing opening 11, at the moment, the annular rubber ring 13 at the inner wall of the conical reducing opening 11 can play a role of filling the gap between the hydraulic oil pipe 1 and the connecting piece body 8, so that the sealing performance between the hydraulic oil pipe 1 and the connecting piece body 8 is good, then the columnar sealing groove body 6 is moved to the top end of the hydraulic oil pipe 1, the rectangular through groove 10 on the columnar sealing groove body 6 passes through the limiting block 9 on the connecting piece body 8, then the columnar sealing groove body 6 is rotated, so that the limiting block 9 approximately fixes the position of the columnar sealing groove body 6, then the L-shaped clamping rod 4 is downwards rotated to clamp the L-shaped clamping rod 4 and the rectangular clamping groove 2 on the, the cylindrical protrusion 16 located at the end of the L-shaped clamping rod 4 and the circular clamping groove 15 on the outer side surface of the movable ring 3 are clamped with each other, so that the cylindrical sealing groove body 6 can be prevented from falling off from the top end of the hydraulic oil pipe 1, the cylindrical sealing groove body 6 can block the annular protrusion 19 on the connecting piece body 8, the connecting piece body 8 is prevented from falling off from the hydraulic oil pipe 1, the connection between the hydraulic oil pipe 1 and the connecting piece body 8 is firmer, and the connecting device is suitable for popularization.

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 anticreep hydraulic pressure union coupling for excavator, includes hydraulic pressure oil pipe (1) and connecting piece body (8), its characterized in that: the connecting piece is characterized in that a conical reducing opening (11) is formed in the hydraulic oil pipe (1), the connecting piece body (8) is inserted into an upper end opening of the hydraulic oil pipe (1), a conical surface matched with the conical reducing opening (11) is arranged at the bottom of the connecting piece body (8), an annular bulge (19) is integrally formed at the edge of the outer wall of the connecting piece body (8), the annular bulge (19) is located in a boss (21) at the top end of the hydraulic oil pipe (1), an annular rubber pad (20) is adhered to the inner wall of the boss (21), the tangent plane of the annular rubber pad (20) is of an L-shaped structure, a cylindrical sealing groove body (6) is sleeved at the top end of the hydraulic oil pipe (1) on the connecting piece body (8), the connecting piece body (8) penetrates through a circular through groove (7) on the cylindrical sealing groove body (6), and a limiting block (9) is fixedly arranged at the edge of the connecting piece body (, the edge of the column-shaped sealing groove body (6) is provided with an L-shaped clamping rod (4) through the hinge support (5) in a movable manner, the L-shaped clamping rod (4) is mutually clamped with a rectangular clamping groove (2) which is positioned at the edge of the movable ring (3), the movable ring (3) is movably sleeved on the outer wall of the hydraulic oil pipe (1), the movable ring (3) is fixedly connected with a limiting bulge (22) which is fixedly welded at the edge of the hydraulic oil pipe (1) through a spring, and the limiting bulge (22) is positioned on the inner side of the movable ring (3).

2. The anti-drop hydraulic pipe connector for the excavator according to claim 1, characterized in that: hug closely in the inner wall of the conical throat (11) of connecting piece body (8) conical surface is equipped with annular groove (12), annular groove (12) are equipped with the multiunit, multiunit annular groove (12)'s inside all inlays and is equipped with annular rubber circle (13).

3. The anti-drop hydraulic pipe connector for the excavator according to claim 2, characterized in that: the plane of the inner wall of the annular rubber ring (13) is parallel to the conical surface of the connecting piece body (8), the inner wall of the annular rubber ring (13) is provided with an annular rubber bulge (14), and the inner wall of the annular rubber bulge (14) is in close contact with the outer wall of the conical surface at the bottom of the connecting piece body (8).

4. The anti-drop hydraulic pipe connector for the excavator according to claim 1, characterized in that: the edge that lies in circular logical groove (7) on the sealed cell body of column (6) is equipped with rectangle through groove (10), rectangle through groove (10) and circular logical groove (7) intercommunication, just the size that the rectangle leads to groove (10) is greater than the size of stopper (9).

5. The anti-drop hydraulic pipe connector for the excavator according to claim 1, characterized in that: the limiting block (9) is of a rectangular block structure, and the distance between the inner side face of the limiting block (9) and the outer side face of the annular protrusion (19) is larger than the thickness of the top cover of the columnar sealing groove body (6).

6. The anti-drop hydraulic pipe connector for the excavator according to claim 1, characterized in that: the tip of L shape joint pole (4) is equipped with column cavity (18), the inside of column cavity (18) is equipped with column arch (16), the fixed solid fixed ring (17) that is equipped with in the inside that lies in column cavity (18) on column arch (16), the below cover that lies in solid fixed ring (17) on column arch (16) is equipped with the spring.

7. The anti-drop hydraulic pipe connector for the excavator according to claim 6, wherein: the tip of column arch (16) and the mutual joint of circular slot (15) that are located activity ring (3) outside surface, circular slot (15) are equipped with the multiunit, multiunit circular slot (15) are the equidistance annular arrangement on the outside surface of activity ring (3).