CN220706652U

CN220706652U - Smooth oil pipe with multilayer structure

Info

Publication number: CN220706652U
Application number: CN202322211657.XU
Authority: CN
Inventors: 施铭仁; 周建军
Original assignee: Kunshan Ju Ding Pml Precision Mechanism Ltd
Current assignee: Kunshan Ju Ding Pml Precision Mechanism Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-02
Anticipated expiration: 2033-08-17

Abstract

The utility model discloses a smooth oil pipe with a multilayer structure, which comprises a pipe body, wherein a limit sleeve is sleeved at the end part of the pipe body, a connecting pipe is inserted into the pipe body, a connecting component is arranged on the pipe body, and the connecting component comprises: the connecting convex ring is integrally arranged on the outer surface of the pipe body, annular grooves for clamping the connecting convex ring are formed in two ends of the inner wall of the limiting sleeve, the annular grooves are sleeved on the connecting convex ring in installation, and then the limiting sleeve is extruded until the limiting sleeve is clamped into the pipe body to realize installation; the inner limiting ring is integrally arranged on the inner wall of the pipe body; through the coupling assembling of design, can increase the connection steadiness of body and stop collar, avoid later stage to appear not hard up to can also promote the leakproofness when both are connected, avoid appearing the seepage of liquid, in the junction of stop collar and body simultaneously, can not support tightly each other for a long time and cause the damaged problem of body self, perfect the not enough in use of current plain noodles oil pipe.

Description

Smooth oil pipe with multilayer structure

Technical Field

The utility model belongs to the technical field of hydraulic pump station accessories, and particularly relates to a smooth oil pipe with a multilayer structure.

Background

In the hydraulic pump station, need carry oily medium through smooth surface oil pipe, smooth surface high pressure oil pipe surface is smooth, and inside scribbles special material, can effectively reduce the intraductal carbon deposit of oil, reduces the risk that the pump nozzle blockked up, in the hydraulic pump station that has energy-conserving buffering protection device as disclosed in bulletin number CN104976170B, also illustrated realizing accumulator and hydraulic system's connection through oil pipe, in order to increase oil pipe's service pressure, can add the enhancement layer in inside, realize pressure protection through multilayer structure.

The existing smooth surface oil pipe is in cooperation with the hydraulic pump, the installation and fixation can be realized only by installing corresponding connecting structures at two ends of the existing smooth surface oil pipe, and the fastening installation is realized mainly through shrinkage deformation between the existing connector and the smooth surface oil pipe.

Disclosure of Invention

The utility model aims to provide a smooth oil pipe with a multilayer structure, which solves the problems that the conventional smooth oil pipe provided in the background art has insufficient installation stability and is easy to damage during the installation with a connector.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multilayer structure's plain noodles oil pipe, includes the body, the tip cover of body is equipped with the stop collar, and has inserted the connecting pipe in the inside of body, be provided with coupling assembling on the body, this coupling assembling includes:

the connecting convex ring is integrally arranged on the outer surface of the pipe body, annular grooves for clamping the connecting convex ring are formed in two ends of the inner wall of the limiting sleeve, the annular grooves are sleeved on the connecting convex ring in installation, and then the limiting sleeve is extruded until the limiting sleeve is clamped into the pipe body to realize installation;

the inner limiting ring is integrally arranged on the inner wall of the pipe body, the end part of the connecting pipe extends to the inner side of the inner limiting ring, threaded parts are further formed on the inner walls of the two ends of the pipe body, and the threaded parts are in threaded connection with the connecting pipe, so that the connecting pipe and the pipe body are fixedly connected.

Preferably, one end of the inner limiting ring extends obliquely towards the middle of the pipe body, one end of the inner limiting ring is located inside the connecting pipe, a lock nut is movably sleeved at the end of the connecting pipe located in the outer direction of the pipe body, the lock nut cannot be separated from the end of the connecting pipe located in the outer direction of the pipe body, and the lock nut is connected with an oil receiving port of the hydraulic pump station.

Preferably, positioning grooves are formed in two ends of the outer surface of the limiting sleeve, and the longitudinal sections of the positioning grooves are triangular.

Preferably, guide parts are formed on the inner walls of the openings at the two ends of the limiting sleeve, and the guide parts are not contacted with the outer surface of the pipe body.

Preferably, the pipe body sequentially comprises an outer rubber pipe, a separation rubber pipe and an inner rubber pipe from outside to inside, wherein the three can form the pipe body into a multi-layer structure, reinforcing layers are arranged between the inner rubber pipe and the separation rubber pipe and between the separation rubber pipe and the outer rubber pipe, and the strength of the whole pipe body is improved through the reinforcing layers.

Preferably, the reinforcing layer is made of polyester fiber, the polyester fiber is woven outside the inner rubber tube and the separation rubber tube, the connecting convex ring is arranged on the outer rubber tube, and the inner limiting ring and the threaded part are both arranged on the inner rubber tube.

Preferably, the lengths of the inner rubber tube, the polyester fiber wire, the separation rubber tube and the outer rubber tube are equal, wherein the thicknesses of the inner rubber tube, the separation rubber tube and the outer rubber tube are equal, and the processing and the production are convenient.

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

through the coupling assembling of design, can increase the connection steadiness of body and stop collar, avoid later stage to appear not hard up to can also promote the leakproofness when both are connected, avoid appearing the seepage of liquid, in the junction of stop collar and body simultaneously, can not support tightly each other for a long time and cause the damaged problem of body self, perfect the not enough in use of current plain noodles oil pipe.

Drawings

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

FIG. 2 is a cross-sectional view of the connection of the pipe body and the stop collar of the present utility model;

FIG. 3 is an enlarged schematic view of area A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a cross-sectional view of the tube body of the present utility model;

in the figure:

100. a tube body; 100a, an inner rubber tube; 100b, polyester fiber wires; 100c, separating rubber pipes; 100d, an outer rubber tube;

101. a limit sleeve; 101a, a guide part; 101b, positioning grooves; 102. a connecting pipe; 103. a lock nut; 104. connecting convex rings; 105. an inner limit ring; 106. a threaded portion.

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 4, the present utility model provides a technical solution: the utility model provides a multilayer structure's plain noodles oil pipe, includes body 100, and the tip cover of body 100 is equipped with stop collar 101, and has inserted connecting pipe 102 in the inside of body 100, is provided with coupling assembling on the body 100, and this coupling assembling includes:

the connecting convex ring 104 is integrally arranged on the outer surface of the pipe body 100, annular grooves for clamping the connecting convex ring 104 are formed in two ends of the inner wall of the limiting sleeve 101, in installation, the annular grooves are sleeved on the connecting convex ring 104, and then the limiting sleeve 101 is extruded until the limiting sleeve 101 is clamped into the pipe body 100 to realize installation;

the inner limiting rings 105 are integrally arranged on the inner wall of the pipe body 100, the end parts of the connecting pipes 102 extend to the inner sides of the inner limiting rings 105, threaded parts 106 are further formed on the inner walls of the two ends of the pipe body 100, and the threaded parts 106 are in threaded connection with the connecting pipes 102, so that the connecting and fixing of the connecting pipes 102 and the pipe body 100 are realized.

In this embodiment, preferably, one end of the inner limiting ring 105 extends obliquely towards the middle direction of the pipe body 100, and one end of the inner limiting ring 105 is located inside the connecting pipe 102, so that structural sealing is achieved between the connecting pipe 102 and the pipe body 100, locking of the limiting sleeve 101 is matched, the pipe body 100 is deformed and abutted against the connecting pipe 102, double sealing is achieved, a locking nut 103 is movably sleeved at the end part of the connecting pipe 102 located in the outer direction of the pipe body 100, the locking nut 103 cannot be separated from the end part of the connecting pipe 102 located in the outer direction of the pipe body 100, and the locking nut 103 is connected with an oil receiving port of a hydraulic pump station.

In this embodiment, preferably, positioning grooves 101b are formed at two ends of the outer surface of the stop collar 101, and the longitudinal section of the positioning grooves 101b is triangular, and when the stop collar 101 is extruded, the inner area of the positioning grooves 101b should be extruded, so that the two ends of the stop collar 101 cannot be embedded into the pipe body 100.

In this embodiment, preferably, the inner walls of the openings at the two ends of the stop collar 101 are formed with guide portions 101a, and the guide portions 101a do not contact with the outer surface of the pipe body 100, so that when the pipe body 100 is bent, the guide portions 101a are attached to the outer surface of the pipe body 100, and the damage to the pipe body 100 caused by extrusion of the guide portions and the pipe body is reduced.

In this embodiment, preferably, the pipe body 100 sequentially includes, from outside to inside, an outer rubber pipe 100d, a separation rubber pipe 100c, and an inner rubber pipe 100a, where the three can form the pipe body 100 into a multi-layer structure, and reinforcing layers are disposed between the inner rubber pipe 100a and the separation rubber pipe 100c, and between the separation rubber pipe 100c and the outer rubber pipe 100d, so that the strength of the whole pipe body 100 is improved through the reinforcing layers.

In this embodiment, the reinforcing layer is preferably a polyester fiber yarn 100b, the polyester fiber yarn 100b is woven outside the inner rubber tube 100a and the separation rubber tube 100c, during processing, the separation rubber tube 100c completely seals and covers the polyester fiber yarn 100b on the inner rubber tube 100a by hot melting, after the separation rubber tube 100c is cured, the polyester fiber yarn 100b is wound, then the polyester fiber yarn 100b on the separation rubber tube 100c is completely sealed and covered by hot melting, thereby completing the production of the whole tube body 100, the connecting convex ring 104 is arranged on the outer rubber tube 100d, and the inner limiting ring 105 and the threaded portion 106 are arranged on the inner rubber tube 100 a.

In this embodiment, the lengths of the inner rubber tube 100a, the polyester fiber wire 100b, the partition rubber tube 100c and the outer rubber tube 100d are preferably equal, wherein the thicknesses of the inner rubber tube 100a, the partition rubber tube 100c and the outer rubber tube 100d are equal, so that the processing and the production are convenient.

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 smooth surface oil pipe of multilayer structure, includes body (100), the tip cover of body (100) is equipped with stop collar (101), and has inserted connecting pipe (102), its characterized in that in the inside of body (100): the pipe body (100) is provided with a connecting component, and the connecting component comprises:

the connecting convex rings (104) are integrally arranged on the outer surface of the pipe body (100), and annular grooves for clamping the connecting convex rings (104) are formed in the two ends of the inner wall of the limiting sleeve (101);

the inner limiting ring (105) is integrally arranged on the inner wall of the pipe body (100), the end part of the connecting pipe (102) extends to the inner side of the inner limiting ring (105), threaded parts (106) are further formed on the inner walls of the two ends of the pipe body (100), and the threaded parts (106) are in threaded connection with the connecting pipe (102).

2. A multi-layer structured smooth tubing as claimed in claim 1 wherein: one end of the inner limiting ring (105) obliquely extends towards the middle direction of the pipe body (100), one end of the inner limiting ring (105) is positioned inside the connecting pipe (102), the end part of the connecting pipe (102) positioned in the outer direction of the pipe body (100) is movably sleeved with a locking nut (103), and the locking nut (103) is connected with an oil receiving port of the hydraulic pump station.

3. A multi-layer structured smooth tubing as claimed in claim 2 wherein: positioning grooves (101 b) are formed in two ends of the outer surface of the limiting sleeve (101), and the longitudinal section of each positioning groove (101 b) is triangular.

4. A multi-layer structured smooth tubing as claimed in claim 3 wherein: guide parts (101 a) are formed on the inner walls of openings at two ends of the limiting sleeve (101), and the guide parts (101 a) are not contacted with the outer surface of the pipe body (100).

5. A multi-layer structured smooth tubing as claimed in claim 1 wherein: the pipe body (100) sequentially comprises an outer rubber pipe (100 d), a separation rubber pipe (100 c) and an inner rubber pipe (100 a) from outside to inside, wherein reinforcing layers are arranged between the inner rubber pipe (100 a) and the separation rubber pipe (100 c) and between the separation rubber pipe (100 c) and the outer rubber pipe (100 d).

6. The multi-layer structured smooth tubing of claim 5, wherein: the reinforcing layer is a polyester fiber wire (100 b), the polyester fiber wire (100 b) is woven outside the inner rubber tube (100 a) and the separation rubber tube (100 c), the connecting convex ring (104) is arranged on the outer rubber tube (100 d), and the inner limiting ring (105) and the threaded part (106) are arranged on the inner rubber tube (100 a).

7. The multi-layer structured smooth tubing of claim 6, wherein: the inner rubber tube (100 a), the polyester fiber wire (100 b), the separation rubber tube (100 c) and the outer rubber tube (100 d) are equal in length, wherein the thicknesses of the inner rubber tube (100 a), the separation rubber tube (100 c) and the outer rubber tube (100 d) are equal.