CN215060301U - Joint core and rubber pipe assembly comprising same - Google Patents
Joint core and rubber pipe assembly comprising same Download PDFInfo
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- CN215060301U CN215060301U CN202120448260.0U CN202120448260U CN215060301U CN 215060301 U CN215060301 U CN 215060301U CN 202120448260 U CN202120448260 U CN 202120448260U CN 215060301 U CN215060301 U CN 215060301U
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- joint core
- core body
- rubber hose
- groove
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Abstract
The utility model discloses a connect core and reach rubber tube assembly including this joint core relates to general hydraulic pressure technical field, and it is not good to have solved the leakproofness between "barb" type joint core and the rubber hose, leads to the problem of medium leakage. The joint core comprises a joint core body, a plurality of grooves extending along the circumferential direction of the joint core body are formed in the peripheral surface of the joint core body, the grooves are sunken towards the direction of a central shaft of the joint core body, and the cross section of each groove is in an isosceles trapezoid shape. So set up, when the rubber hose received the extrusion, can fully fill up in the recess, form "O" shape sealing washer in the position of recess, will connect between the outer wall of core body and the inner wall of rubber hose sealed, solved among the prior art "barb" type joint core and the rubber hose leakproofness not good, lead to the problem of medium leakage.
Description
Technical Field
The utility model relates to a general hydraulic pressure technical field, more specifically say, relate to a connect core and including the rubber tube assembly of this joint core.
Background
In the field of general hydraulic technology, a hose assembly includes a rubber hose, a nipple core, and a crimping sleeve. Most of the connector cores adopted in the prior art are barb-shaped connector cores, and teeth on the outer peripheral surfaces of the connector cores are inclined towards one end of the connector cores. The joint core of the type plays a role in relieving the falling-off of the joint core to a certain extent, but has a poor sealing effect. The main principle is that a special buckling and pressing device extrudes the buckling and pressing sleeve to enable the rubber hose to have small deformation, and the inner wall of the rubber hose is filled with a space formed by the barb and the outer peripheral surface of the joint core to achieve the sealing effect. However, the space between the barb and the outer peripheral surface of the joint core cannot be completely filled when the inner wall of the rubber hose is extruded due to the shape design of the barb, the sealing effect between the joint core and the rubber hose is reduced, the use of the rubber hose assembly cannot be influenced in a short time, but rubber is aged along with the passage of time, the elasticity of the rubber hose is insufficient, the gap at the sealing position between the inner wall surface of the rubber hose and the joint core is accelerated to expand, the risk of medium leakage occurs, the service life of the rubber hose assembly is seriously shortened, the use cost and the after-sale cost of the rubber hose assembly are increased, and the environment is also greatly influenced by frequent replacement of the rubber hose assembly.
Therefore, how to solve the problem of medium leakage caused by poor sealing performance between the barb-shaped joint core and the rubber hose is an important technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connect core and reach rubber tube assembly including this joint core, it is not good to solve between "barb" type joint core and the rubber hose leakproofness among the prior art, leads to the problem of medium leakage. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a joint core, including joint core body, the outer peripheral face of joint core body is equipped with a plurality of recesses that extend along its circumference, the recess to the center pin direction that connects the core body is sunken, the shape of the cross section of recess is isosceles trapezoid.
Preferably, the groove bottom of the groove and the side wall of the groove as well as the side wall of the groove and the outer peripheral surface of the joint core body are connected through arc surfaces.
Preferably, the distance between any two adjacent grooves is equal.
Preferably, the number of the grooves is set to six.
Preferably, the depth of the groove is 2.5 mm to 3.5 mm.
Preferably, the outer peripheral surface of the joint core body is provided with a clamping groove used for being connected with the buckling sleeve in a positioning mode, and the clamping groove extends along the circumferential direction of the joint core body.
The utility model also provides a rubber tube assembly, including the joint core, the joint core is foretell joint core.
The utility model provides an among the technical scheme, the joint core includes joint core body, is equipped with the recess on the outer peripheral face of joint core body, and the recess is sunken to the center pin direction of joint core body, and the shape of the cross section of recess is isosceles trapezoid, and the quantity of recess sets up to a plurality ofly. So set up, when withholding the sleeve through withholding equipment extrusion, the inner wall of rubber hose receives extrusion deformation and fills up in the recess, is equivalent to, rubber hose is extruded and forms "O" shape sealing washer in the position of recess, sets up a plurality of recesses and just forms a plurality of "O" shape sealing washers, with fully sealed between rubber hose and the joint core, it is not good to have solved among the prior art between "barb" type joint core and the rubber hose leakproofness, the problem that the medium leaked easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a joint core in an embodiment of the invention;
fig. 2 is a sectional view of the rubber tube assembly completed by crimping in the embodiment of the present invention.
In the figure:
1-joint core, 11-joint core body, 12-groove, 13-clamping groove, 2-rubber hose, 3-buckling sleeve, 31-convex ring and 32-snap ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The purpose of this embodiment is to provide a joint core, solve among the prior art "barb" type joint core and the rubber hose leakproofness not good, lead to the problem of medium leakage.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1, in the present embodiment, the joint core 1 includes a joint core body 11, a groove 12 is formed on an outer circumferential surface of the joint core body 11, the groove 12 is recessed toward a central axis direction of the joint core body 11, a cross section of the groove 12 is shaped like an isosceles trapezoid, and a plurality of grooves 12 are formed.
The isosceles trapezoid is a bilateral symmetry structure, and an included angle larger than 90 degrees is formed between the upper bottom of the isosceles trapezoid and the side edge of the isosceles trapezoid. However, in the prior art, the barb of the barb-type joint core is inclined towards one end of the joint core, so that an obtuse angle is formed between one side of the barb and the outer peripheral surface of the joint core body 11, an acute angle is formed between the other side of the barb and the outer peripheral surface of the joint core body 11, when the rubber hose 2 is squeezed, the acute angle is difficult to be completely filled by rubber, and the problem that the seal between the rubber hose 2 and the joint core is poor exists. In this embodiment, the cross section of the groove 12 is isosceles trapezoid, and when the rubber hose 2 is extruded, the groove 12 can be filled with the rubber hose, and an O-shaped sealing ring is formed at the position of the groove 12. So set up, solved among the prior art between "barb" type joint core and the rubber hose 2 leakproofness not good, the problem that the medium leaked easily.
In a preferred embodiment of the present invention, the groove bottom of the groove 12 and the side wall of the groove 12 and the outer peripheral surface of the joint core body 11 are connected by arc surfaces. That is, rounded corners are provided at the corners of the groove 12. So set up, can prevent that the corner position of recess 12 from causing the damage to the inner wall of rubber hose 2, influencing rubber hose 2 and even the life of rubber tube assembly.
In the present embodiment, the pitch between any two adjacent grooves 12 is equal. So set up, the effect of power between joint core 1 and the rubber hose 2 is comparatively even for it is more firm to cooperate to be connected between joint core 1 and the rubber hose 2, can also improve the stability and the life of rubber tube assembly. Further, the number of the grooves 12 is set to six. Repeated experiments by the inventor summarize that the grooves 12 are six, that is, six O-shaped sealing rings are arranged between the joint core body 11 and the rubber hose 2, so that excellent sealing performance between the joint core 1 and the rubber hose 2 can be ensured.
Preferably, the inner surface of the crimping sleeve 3 is provided with a plurality of protruding rings 31 extending along the circumferential direction thereof, and the number of the protruding rings 31 is also six, and corresponds to the grooves 12 of the joint core one by one. So set up, when the bulge loop 31 extrudees rubber hose 2, the rubber hose 2 of being convenient for is filled in with recess 12 fully.
In this embodiment, the degree of depth of recess 12 is 2.5 millimeters ~ 3.5 millimeters, and is that isosceles trapezoid's height is 2.5 millimeters ~ 3.5 millimeters, as the utility model discloses a preferred embodiment sets up isosceles trapezoid's height to 2 millimeters. The upper bottom of the isosceles trapezoid is set to be 3 millimeters, and the lower bottom is set to be 4 millimeters. If isosceles trapezoid's height is on the high side, the degree of difficulty that rubber hose 2 filled up recess 12 increases, if isosceles trapezoid's height is on the low side, then the frictional force between joint core 1 and rubber hose 2 can reduce, increases the risk that joint core 1 drops from rubber hose 2.
So set up, have fine leakproofness between joint core 1 and the rubber hose 2, can also avoid the problem that the rubber tube assembly takes off the head.
In this embodiment, the outer circumferential surface of the joint core body 11 is provided with a locking groove 13, and the locking groove 13 extends along the circumferential direction of the joint core body 11. The buckling sleeve 3 is provided with a clamping ring 32 extending along the circumferential direction of the buckling sleeve, the clamping ring 32 can penetrate into the clamping groove 13, and when buckling is carried out, the buckling sleeve 3 is connected with the joint core 1 in a positioning mode.
The following description specifically describes the present joint core 1 with reference to the above embodiments, in this embodiment, the joint core 1 includes a joint core body 11, a groove 12 is provided on an outer peripheral surface of the joint core body 11, the groove 12 is recessed toward a central axis direction of the joint core body 11, a cross section of the groove 12 is in an isosceles trapezoid shape, the number of the grooves 12 is six, and a distance between any two adjacent grooves 12 is equal. The groove bottom of the groove 12 and the side wall of the groove 12 and the outer peripheral surface of the joint core body 11 are connected through arc surfaces. The height of the cross section of the groove 12 is set to 2 mm, the upper bottom is set to 3 mm, and the lower bottom is set to 4 mm. The outer peripheral surface of the joint core body 11 is provided with a clamping groove 13, and the clamping groove 13 extends along the circumferential direction of the joint core body 11 and is used for being matched with a clamping ring 32 on the buckling sleeve 3. So set up, the shape of recess 12's cross section is isosceles trapezoid, and when rubber hose 2 received the extrusion, can fully fill up in the recess 12, forms "O" shape sealing washer in the position of recess 12, and six "O" shape sealing washers are sealed between with the outer wall of joint core body 11 and rubber hose 2's the inner wall, and it is not good to have solved among the prior art leakproofness between "barb" type joint core and the rubber hose 2, leads to the problem of dielectric leakage.
The utility model also provides a rubber tube assembly, please refer to fig. 2, rubber tube assembly includes joint core 1, rubber hose 2 and withholds sleeve 3, and 2 covers of rubber hose are established in the periphery of joint core 1, withhold sleeve 3 covers and establish in the periphery of rubber hose 2 and set up the hookup location at joint core 1 and rubber hose 2, and the joint core 1 that mentions is joint core 1 in above-mentioned embodiment promptly. So set up, when rubber hose 2 received the extrusion, can fully fill up in the recess 12, form "O" shape sealing washer in the position of recess 12, six "O" shape sealing washers are sealed between with the outer wall of joint core body 11 and rubber hose 2's the inner wall, have solved among the prior art "barb" type joint core and rubber hose 2 between the leakproofness not good, lead to the problem of medium leakage.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The utility model provides a plurality of schemes contain the basic scheme of itself, mutual independence to restrict each other, but it also can combine each other under the condition of not conflicting, reaches a plurality of effects and realizes jointly.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The joint core is characterized by comprising a joint core body (11), wherein a plurality of grooves (12) extending along the circumferential direction of the joint core body (11) are formed in the outer circumferential surface of the joint core body, the grooves (12) are sunken towards the central axis direction of the joint core body (11), and the cross section of each groove (12) is in an isosceles trapezoid shape.
2. The joint core according to claim 1, wherein the groove bottom of the groove (12) and the side wall of the groove (12) and the outer peripheral surface of the joint core body (11) are connected by a circular arc surface.
3. The joint core according to claim 1, wherein the spacing between any two adjacent grooves (12) is equal.
4. Splice core according to claim 1, characterized in that the number of grooves (12) is provided as six.
5. Splice core according to claim 1, characterized in that the depth of the groove (12) is 2.5 mm to 3.5 mm.
6. The joint core according to claim 1, wherein the joint core body (11) is provided with a clamping groove (13) on the outer circumferential surface for positioning connection with the crimping sleeve (3), and the clamping groove (13) extends along the circumferential direction of the joint core body (11).
7. A hose assembly comprising a joint core, wherein the joint core is as defined in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120448260.0U CN215060301U (en) | 2021-03-02 | 2021-03-02 | Joint core and rubber pipe assembly comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120448260.0U CN215060301U (en) | 2021-03-02 | 2021-03-02 | Joint core and rubber pipe assembly comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215060301U true CN215060301U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120448260.0U Active CN215060301U (en) | 2021-03-02 | 2021-03-02 | Joint core and rubber pipe assembly comprising same |
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| CN (1) | CN215060301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856076A (en) * | 2021-03-02 | 2021-05-28 | 川润液压技术(江苏)有限公司 | Joint core and rubber pipe assembly comprising same |
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2021
- 2021-03-02 CN CN202120448260.0U patent/CN215060301U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856076A (en) * | 2021-03-02 | 2021-05-28 | 川润液压技术(江苏)有限公司 | Joint core and rubber pipe assembly comprising same |
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