CN217899162U

CN217899162U - Rubber pipe joint

Info

Publication number: CN217899162U
Application number: CN202221840978.5U
Authority: CN
Inventors: 潘昱颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-25
Anticipated expiration: 2032-07-14

Abstract

The utility model provides a rubber tube joint belongs to coupling technical field. The rubber pipe joint solves the problems that the production, the manufacture and the assembly of an outer pipe sleeve and an inner core pipe of the existing rubber pipe joint are relatively complicated, and the production and the manufacture efficiency are lower. The right end of the outer pipe sleeve of the rubber pipe joint is axially and oppositely connected with the left end of the inner core pipe, and a limiting device capable of preventing the inner core pipe from axially separating from the outer pipe sleeve is arranged between the outer pipe sleeve and the inner core pipe; the right-hand member including outer pipe box has the axial connecting portion that the arch set up right, has the bulge loop on the outer wall of the left end of inner core pipe, and the bulge loop axial of this inner core pipe assembles in outer pipe box's connecting portion and the outer end of outer pipe box's connecting portion causes the outer end deformation of connecting portion to be interior fender ring through the mode of withholding, and this inner core pipe's bulge loop and interior fender ring axial are to leaning on the cooperation. The utility model discloses production manufacturing efficiency is higher, and both prevent through the outer tube withhold of outer tube cover, inner core pipe carry on spacingly, and manufacturing cost is lower, stable in structure.

Description

Rubber pipe joint

Technical Field

The utility model belongs to the technical field of the coupling, a rubber tube joint is related to.

Background

In order to prevent the rubber pipe on the rubber pipe joint from being wound during assembly, the existing rubber pipe joint needs to rotate relatively during connection, the design of the existing rubber pipe joint structure is complex, as shown in fig. 1, the rubber pipe joint mainly comprises an outer pipe sleeve 100 and an inner core pipe 200, the right end of the outer pipe sleeve 100 and the left end of the inner core pipe 200 are axially and relatively connected, the inner core pipe 200 can rotate circumferentially in the outer pipe sleeve 100, and the outer pipe sleeve 100 and the inner core pipe 200 are clamped through steel balls 300 for limiting the axial displacement of the outer pipe sleeve 100 and the inner core pipe 200; the structure for assembling the steel ball 300 between the outer jacket 100 and the inner core tube 200 is as follows: the outer sleeve 100 is provided with a radially penetrating installation hole 400, the inner wall of the outer sleeve 100 is provided with a first clamping groove 500 communicated with the installation hole 400, the outer wall of the inner core tube 200 is provided with a second clamping groove 600, when the first clamping groove 500 and the second clamping groove 600 of the outer sleeve 100 and the inner core tube 200 are opposite, a plurality of steel balls 300 are sequentially filled between the first clamping groove 500 and the second clamping groove 600 of the outer sleeve 100 and the inner core tube 200 through the installation hole 400, and the installation hole 400 on the outer sleeve 100 is shifted by a connecting sleeve 700 in threaded connection with the outer sleeve 100.

In the structure, the outer pipe sleeve and the inner core pipe are clamped between the first clamping groove and the second clamping groove of the outer pipe sleeve and the inner core pipe through the steel balls, the axial relative displacement of the outer pipe sleeve and the axial relative displacement of the inner core pipe are limited, the limiting structure is stable, but the production, the manufacturing and the assembly of the outer pipe sleeve and the inner core pipe are relatively complex, so that the production and the manufacturing efficiency are low, the outer pipe sleeve and the inner core pipe are limited through the steel balls, the clamping piece is added, the production cost is increased, and the cost is high.

Disclosure of Invention

The utility model aims at providing a simple structure, structure are comparatively stable to the above-mentioned problem that exists among the prior art, the lower glued pipe joint of manufacturing cost.

The purpose of the utility model can be realized by the following technical proposal: a rubber tube joint comprises an outer tube sleeve and an inner core tube, wherein the right end of the outer tube sleeve is axially and oppositely connected with the left end of the inner core tube, and the inner core tube can circumferentially rotate in the outer tube sleeve; stop device include that the right-hand member of outer tube housing has the axial connecting portion that the arch set up right, the outer wall of the left end of inner core pipe on have a bulge loop, the bulge loop axial of this inner core pipe assemble in the connecting portion of outer tube housing and the outer end of the connecting portion of outer tube housing causes the outer end deformation of connecting portion to be interior fender ring through the mode of withholding, the bulge loop of this inner core pipe with interior fender ring axial support lean on the cooperation.

The rubber tube joint mainly comprises an outer tube sleeve and an inner core tube, wherein the outer tube sleeve and the inner core tube can rotate relatively, the outer tube sleeve and the inner core tube cause the outer end of the connecting part of the outer tube sleeve to deform into an inner retaining ring in a buckling and pressing mode of the outer end of the connecting part of the outer tube sleeve, and the inner retaining ring is used for retaining the axial displacement of the outer tube sleeve and the inner core tube, so that the rubber tube joint is simple to produce and manufacture, simple in structure, high in structural stability and low in production cost.

In the above rubber pipe joint, the connecting portion is of a sleeve-shaped structure, the connecting portion is arranged at the right end of the outer pipe sleeve and enables the right end face of the outer pipe sleeve to form an axial step, the axial step and the inner baffle ring are axially matched at intervals to form an axial interval groove, and the convex ring of the inner core pipe is located in the axial interval groove.

In the rubber pipe joint, the outer diameter of the left end of the inner core pipe is matched with the inner diameter of the right end of the outer pipe sleeve, the left end of the inner core pipe is axially matched and arranged in the right end of the outer pipe sleeve, and a sealing structure is arranged between the left end of the inner core pipe and the right end of the outer pipe sleeve. The purpose of setting up like this is that the left end of convenient inner core pipe and the right-hand member of outer pipe cover carry out relative axial grafting assembly, and it is convenient to manufacture.

In a foretell rubber tube connects, seal structure include first sealing ring, the second sealing ring that the axial interval inlayed on the outer wall of the left end of inner core pipe, when the left end axial of inner core pipe wore to locate in the right-hand member of outer tube cover, this first sealing ring, second sealing ring all sealed act on the inner wall of the right-hand member of outer tube cover. Can ensure the sealed validity of outer pipe box and inner core pipe both relative rotations through first sealing ring, second sealing ring, seal structure is stable, convenient to use.

In the above rubber pipe joint, the outer wall of the outer pipe sleeve has an outer hexagonal structure. The outer pipe box will carry out the rotation in a circumferential direction when using, and rotates convenient to use through the outer hexagonal structure of the outer wall of outer pipe box.

In the above rubber pipe joint, the left end of the outer pipe sleeve is provided with a connecting sleeve portion which is axially and outwards protruded, the outer end of the connecting sleeve portion is provided with a connecting ring portion, and the outer wall of the connecting ring portion is provided with external threads. This connecting ring portion still can be in the connected mode: the inner wall of the connecting ring part is provided with internal threads for connection; the connecting sleeve part at the left end of the outer sleeve is used for being in spiral connection with equipment, and the use is convenient.

In the above rubber tube joint, the right end of the inner core tube is provided with an insertion tube part extending outwards in the axial direction. The inserting pipe part is used for inserting the rubber pipe, and is convenient to use.

Compared with the prior art, the rubber hose joint has the advantages that: the production, manufacturing and assembly of the outer pipe sleeve and the inner core pipe are relatively simple, the production and manufacturing efficiency is high, the outer pipe sleeve and the inner core pipe are prevented from being limited through buckling and pressing of the outer sleeve, the production cost is low, and the structure is stable.

Drawings

Fig. 1 is a schematic cross-sectional view of a conventional rubber hose joint.

FIG. 2 is a schematic sectional view of the outer end of the connecting portion of the outer socket in the hose joint before crimping.

FIG. 3 is a schematic sectional view of the hose connector with the outer end of the connecting portion of the outer sleeve crimped.

In the figure, 1, an outer sleeve; 2. an inner core tube; 3. a connecting portion; 4. a convex ring; 5. an inner baffle ring; 6. axially spaced grooves; 7. a first seal ring; 8. a second seal ring; 9. a connecting sleeve portion; 10. a connecting ring portion; 11. a plug pipe portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 2 and 3, the rubber tube joint mainly comprises an outer tube sleeve 1 and an inner core tube 2, wherein the right end of the outer tube sleeve 1 is axially and oppositely connected with the left end of the inner core tube 2, the inner core tube 2 can circumferentially rotate in the outer tube sleeve 1, and a limiting device capable of preventing the inner core tube 2 from axially separating from the outer tube sleeve 1 is arranged between the outer tube sleeve 1 and the inner core tube 2; during actual manufacturing, the specific implementation mode of the limiting device is as follows: the right-hand member of outer tube sleeve 1 has the axial connecting portion 3 that the arch set up right, has bulge loop 4 on the outer wall of the left end of inner core pipe 2, and the bulge loop 4 axial of this inner core pipe 2 assembles in connecting portion 3 of outer tube sleeve 1 and the outer end of connecting portion 3 of outer tube sleeve 1 causes the outer end deformation of connecting portion 3 to be interior fender ring 5 through the mode of withholding, the bulge loop 4 of this inner core pipe 2 with interior fender ring 5 axial support to lean on the cooperation.

In actual manufacturing, the connecting portion 3 is a sleeve-shaped structure, the connecting portion 3 is disposed at the right end of the outer jacket 1, and the right end face of the outer jacket 1 forms an axial step, the axial step and the inner baffle ring 5 are axially matched at an interval to form an axial interval groove 6, and the convex ring 4 of the inner core tube 2 is located in the axial interval groove 6.

During actual production, the outer diameter of the left end of the inner core pipe 2 is matched with the inner diameter of the right end of the outer sleeve 1, the left end of the inner core pipe 2 is axially matched and arranged in the right end of the outer sleeve 1 in a penetrating manner, and a sealing structure is arranged between the left end of the inner core pipe 2 and the right end of the outer sleeve 1; the specific implementation mode of the sealing structure is as follows: the outer wall of the left end of the inner core pipe 2 is provided with a first sealing ring 7 and a second sealing ring 8 which are embedded at intervals in the axial direction, and when the left end of the inner core pipe 2 axially penetrates through the right end of the outer pipe sleeve 1, the first sealing ring 7 and the second sealing ring 8 are sealed and act on the inner wall of the right end of the outer pipe sleeve 1.

During actual manufacturing, the outer wall of the outer pipe sleeve 1 is provided with an outer hexagonal structure; the left end of the outer jacket 1 is provided with a connecting jacket part 9 which is axially and convexly arranged, the outer end of the connecting jacket part 9 is provided with a connecting ring part 10, and the outer wall of the connecting ring part 10 is provided with external threads.

In actual manufacture, the right end of the inner core tube 2 has an insertion tube portion 11 extending axially outward.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A rubber tube joint comprises an outer tube sleeve (1) and an inner core tube (2), wherein the right end of the outer tube sleeve (1) is axially and relatively connected with the left end of the inner core tube (2), and the inner core tube (2) can circumferentially rotate in the outer tube sleeve (1), and is characterized in that a limiting device capable of preventing the inner core tube (2) from axially separating from the outer tube sleeve (1) is arranged between the outer tube sleeve (1) and the inner core tube (2); stop device include that the right-hand member of outer tube housing (1) has connecting portion (3) that the axial set up to the right side arch, the outer wall of the left end of inner core pipe (2) on have bulge loop (4), bulge loop (4) axial assembly of this inner core pipe (2) in connecting portion (3) of outer tube housing (1) and the outer end of connecting portion (3) of outer tube housing (1) cause the outer end deformation of connecting portion (3) to be interior fender ring (5) through the mode of withholding, the bulge loop (4) of this inner core pipe (2) with interior fender ring (5) axial support and lean on the cooperation.

2. The rubber pipe joint as claimed in claim 1, wherein the connecting portion (3) is of a sleeve-like structure, the connecting portion (3) is disposed at the right end of the outer sleeve (1) and forms an axial step on the right end face of the outer sleeve (1), the axial step and the inner stop ring (5) are axially spaced to form an axial spacing groove (6), and the protruding ring (4) of the inner core pipe (2) is located in the axial spacing groove (6).

3. The rubber pipe joint as claimed in claim 2, wherein the outer diameter of the left end of the inner core pipe (2) is matched with the inner diameter of the right end of the outer sleeve (1), the left end of the inner core pipe (2) is axially matched and arranged in the right end of the outer sleeve (1), and a sealing structure is arranged between the left end of the inner core pipe (2) and the right end of the outer sleeve (1).

4. The rubber pipe joint according to claim 3, wherein the sealing structure comprises a first sealing ring (7) and a second sealing ring (8) which are embedded on the outer wall of the left end of the inner core pipe (2) at intervals in the axial direction, and when the left end of the inner core pipe (2) axially penetrates through the right end of the outer pipe sleeve (1), the first sealing ring (7) and the second sealing ring (8) are sealed and act on the inner wall of the right end of the outer pipe sleeve (1).

5. The rubber pipe joint as claimed in claim 1, wherein the outer pipe sleeve (1) has an outer hexagonal structure on the outer wall.

6. The rubber pipe joint as claimed in claim 1, wherein the left end of the outer pipe sleeve (1) is provided with a connecting sleeve portion (9) which is axially protruded outwards, the outer end of the connecting sleeve portion (9) is provided with a connecting ring portion (10), and the outer wall of the connecting ring portion (10) is provided with external threads.

7. The rubber pipe joint as claimed in claim 1, wherein the right end of the inner core pipe (2) is provided with an axially outwardly extending plug pipe portion (11).