阅读说明：本技术 一种复合齿压卡环及卡压管件 (Composite tooth pressure snap ring and clamping pressure pipe fitting ) 是由 黄永红 孙允月 李波 徐忠锐 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种复合齿压卡环及卡压管件,卡环包括卡环本体和设置在所述卡环本体上的齿部,所述卡环本体的材质为塑料；所述齿部的材质为金属；通过塑料特有的弹性和容差性,提高管道在安装时的容差性,便于安装,且通过塑料的卡环本体锁紧管件,实现稳定的连接,避免挤压连接的卡压管件出现漏水问题。(The invention discloses a composite tooth pressure clamping ring and a clamping pipe fitting, wherein the clamping ring comprises a clamping ring body and tooth parts arranged on the clamping ring body, and the clamping ring body is made of plastic; the tooth part is made of metal; through the peculiar elasticity and the tolerance nature of plastics, improve the tolerance nature of pipeline when the installation, the installation of being convenient for, and through the snap ring body locking pipe fitting of plastics, realize stable connection, avoid the card of extrusion connection to press the pipe fitting to appear the problem of leaking.)

1. The composite tooth pressure snap ring is characterized by comprising a snap ring body and tooth parts arranged on the snap ring body, wherein the snap ring body is made of plastic or rubber; the tooth part is made of metal.

2. The composite tooth pressure snap ring of claim 1, wherein said snap ring body and said teeth are removably connected.

3. The composite tooth pressure snap ring according to claim 1 or 2, wherein a groove for accommodating the tooth portion is provided on the snap ring body, and the tooth portion is mounted in the groove.

4. The composite tooth pressure snap ring according to claim 3, wherein the number of said grooves and the corresponding number of said teeth are plural.

5. The composite tooth pressure snap ring according to claim 3 or 4, wherein a plurality of said grooves are provided on an end face of said snap ring body.

6. The composite tooth pressure snap ring according to any one of claims 3 to 5, wherein the groove is a U-shaped groove.

7. The composite tooth pressure snap ring according to claim 6, wherein the bottom surface of the U-shaped groove is provided with a cylindrical protrusion.

8. The composite tooth pressure snap ring according to claim 6 or 7, wherein the cylindrical protrusion is arranged at the geometric center of the bottom surface of the U-shaped groove.

9. The composite tooth pressure snap ring according to claim 7 or 8, wherein the teeth are in a sheet shape, a first mounting hole matched with the cylindrical protrusion is arranged at the geometric center of the sheet-shaped teeth, and the cylindrical protrusion passes through the first mounting hole to be connected with the sheet-shaped teeth.

10. The composite tooth pressure snap ring according to any one of claims 6 to 8, wherein steps are provided on both sides of the U-shaped groove.

Technical Field

The invention relates to the technical field of clamping and pressing sealing, in particular to a composite tooth pressing snap ring and a clamping and pressing pipe fitting.

Background

The snap ring that current tooth pressure pipe fitting used uses the snap ring of single metal structure, has multiple structures such as horizontal, vertical, annular arch, and the card that single metal structure preparation formed presses tooth structure, extrudees the bellmouth, and then realizes sealedly to the extrusion of sealing washer.

The tooth ring structure of current card pressure structure is more single, and especially there is most advanced structure in the metal, produces most advanced corruption easily, loses the effect of holding tightly to the pipeline, and the card presses the in-process to appear the snap ring position uncertain easily, and the unstable problem of locking structure causes the card of final extrusion connection to press the pipe fitting, appears leaking the problem.

Disclosure of Invention

In order to solve the problem that the locking structure of the conventional tooth pressure pipe fitting clamping ring is unstable, the invention provides the following composite tooth pressure clamping ring and a clamping pipe fitting.

Scheme 1 discloses a composite tooth pressure snap ring, which comprises a snap ring body and tooth parts arranged on the snap ring body, wherein the snap ring body is made of plastic or rubber; the tooth part is made of metal.

Scheme 2, according to scheme 1 compound tooth pressure snap ring, the snap ring body with the tooth portion can be dismantled and be connected.

Scheme 3, according to scheme 1 or 2 compound tooth pressure snap ring, be provided with on the snap ring body and hold the recess of tooth portion, tooth portion install in the recess.

Scheme 4, according to scheme 3 compound tooth pressure snap ring, the recess and its correspond the quantity of tooth portion is a plurality ofly.

Scheme 5, according to scheme 3 or 4 compound tooth pressure snap ring, a plurality of the recess sets up on the terminal surface of snap ring body.

Scheme 6, according to scheme 3 to 5 arbitrary compound tooth pressure snap ring, the recess is U type groove.

Scheme 7, according to scheme 6 compound tooth pressure snap ring, U type tank bottom surface is provided with cylindrical arch.

Scheme 8, according to scheme 6 or 7 compound tooth pressure snap ring, cylindrical protruding setting in the geometric center department of U type groove bottom surface.

Scheme 9, according to scheme 7 or 8 the compound tooth pressure snap ring, the tooth portion is the slice, the geometric center department of flaky tooth portion be provided with cylindrical protruding looks adaptation's first mounting hole, cylindrical protruding pass first mounting hole realizes being connected with flaky tooth portion.

Scheme 10, according to scheme 6 to 8 any compound tooth pressure snap ring, the both sides in U type groove are provided with the step.

Scheme 11, according to scheme 6 to 10 any compound tooth pressure snap ring, tooth portion include U type body and follow the extension that extends in U type body both sides, the geometric center department of U type body be provided with the second mounting hole of cylindrical protruding looks adaptation, cylindrical protruding passing the second mounting hole realize with the U type body is connected, the extension with the step laminating.

Scheme 12, the composite tooth pressure snap ring according to scheme 3 or 4, wherein the groove is formed in the peripheral surface of the outer portion of the snap ring body; preferably, the groove is an L-shaped groove.

Scheme 13, according to scheme 12 compound tooth pressure snap ring, the tooth portion is L type tooth portion, L type tooth portion card go into realize in the L type recess with the connection of L type recess.

Scheme 14, the composite tooth pressure snap ring according to scheme 3 or 4, wherein a notch is formed between every two adjacent grooves; preferably, the notches comprise a first notch with an opening direction positioned on the outer surface of the clamp ring body and a second notch with an opening direction positioned on the inner surface of the clamp ring body; preferably, the depth of the first notch is greater than the depth of the second notch.

Scheme 15, according to scheme 1 to 4 any compound tooth pressure snap ring, the snap ring body is equipped with the opening.

Scheme 16, according to the compound tooth pressure snap ring of scheme 15, the radian of opening is 10 to 25.

Scheme 17, according to scheme 1 composite tooth pressure snap ring, the material of snap ring body is one of PE plastics, PP plastics, PV plastics, nylon plastics, other organic plastics, rubber.

Scheme 18 and the composite tooth pressure snap ring according to scheme 1, wherein the tooth parts are made of stainless steel.

Scheme 19, a compound card pressure pipe fitting, includes according to scheme 1-18 arbitrary compound tooth pressure snap ring, still includes socket spare and sealing washer.

Scheme 20, according to scheme 19 the pipe fitting is pressed to compound card, be provided with on the socket piece and hold the first holding tank of meshing pressure snap ring and hold the second holding tank of sealing washer.

The composite tooth pressure clamping ring and the clamping pipe fitting provided by the invention at least have the following beneficial effects:

(1) the clamping ring body is made of plastic or rubber, the tooth part made of metal is matched, the tolerance of the pipeline during installation is improved through the specific elasticity and tolerance of the plastic/rubber, the pipeline is convenient to install, the pipe fitting is locked through the clamping ring body made of plastic/rubber, stable connection is realized, and the problem of water leakage of the clamping and pressing pipe fitting which is connected in an extruding mode is avoided;

(2) the plastic/rubber is adopted to replace metal, so that the production cost can be effectively reduced;

(3) the arrangement of the notches can enable the changed girth during contraction to be uniformly distributed when the clamp ring body is extruded and contracted, so that the extruded tooth part is uniformly stressed, and the clamping force is uniformly distributed to one circle of the pipeline, so that the capacity of bearing the tensile force is better;

(4) the sheet-shaped tooth part has larger stress area and is suitable for various pipelines, even plastic steel pipelines;

(5) the U-shaped tooth part enables the stress to be at the tip end, and is suitable for a pipeline with harder hardness;

(6) l type tooth portion card is gone into in the L type recess, is favorable to L type tooth portion by plastics cladding closely, is applicable to all kinds of pipelines, moulds the steel pipe way even:

(7) the open-ended design can effectively prevent to appear interfering when the snap ring body locks.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a composite tooth pressure snap ring provided by the invention.

Fig. 2 is a schematic perspective view of a first embodiment of the composite tooth pressure snap ring according to the present invention.

Fig. 3 is an exploded view of a first embodiment of the composite tooth pressure snap ring provided by the present invention.

Fig. 4 is a schematic structural view of a tooth portion of a first embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 5 is a schematic structural view of a second embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 6 is a schematic perspective view of a second embodiment of the composite tooth pressure snap ring according to the present invention.

Fig. 7 is an exploded view of a second embodiment of the composite tooth pressure snap ring provided by the present invention.

Fig. 8 is a schematic structural view of a tooth portion of a second embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 9 is a schematic structural view of a third embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 10 is a schematic perspective view of a third embodiment of the composite tooth pressure snap ring according to the present invention.

Fig. 11 is an exploded view of a third embodiment of the composite tooth pressure snap ring provided by the present invention.

Fig. 12 is a schematic structural view of a tooth portion of a third embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 13-15 are schematic structural views of a fourth embodiment of the composite tooth pressure snap ring provided by the invention.

Fig. 16-18 are exploded views of an embodiment of a composite swage tube provided by the invention.

Fig. 19 is an installation diagram of an embodiment of the composite pipe clamp according to the present invention.

Fig. 20 is an enlarged schematic view of a portion a in fig. 19.

Fig. 21 is an installation diagram of a second embodiment of the composite pipe clamp according to the present invention.

Fig. 22 is an enlarged schematic view of portion B of fig. 21.

Fig. 23 is an installation diagram of a third embodiment of the composite pipe clamp according to the present invention.

Detailed description of the preferred embodiments

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

The invention provides a composite tooth pressure snap ring which comprises a snap ring body and tooth parts arranged on the snap ring body, wherein the snap ring body is made of plastic or rubber; the tooth part is made of metal.

Specifically, the snap ring body is the ring shape structure, as the major structure of whole snap ring, and its material is plastics or rubber, and the tooth portion of cooperation metal material through the distinctive elasticity of plastics/rubber and tolerance nature, improves the tolerance nature of pipeline when the installation, and the installation of being convenient for, and snap ring body locking pipe fitting through plastics/rubber realizes stable connection, avoids the card of extrusion connection to press the pipe fitting problem of leaking to appear.

In addition, the plastic/rubber is adopted to replace metal, so that the production cost can be effectively reduced.

The snap ring body and the tooth part are connected in a detachable mode, and the tooth part can be replaced according to requirements.

Referring to fig. 1 to 3, a first embodiment of the present invention provides a composite tooth pressure snap ring, which includes a snap ring body 101 and a tooth portion 102 disposed on the snap ring body, wherein the snap ring body 101 is made of plastic; the tooth portion 102 is made of metal, a groove 103 for accommodating the tooth portion 102 is formed in the snap ring body 101, and the tooth portion 102 is mounted in the groove 103.

The number of the grooves 103 is multiple, the number of the teeth 102 is multiple, and the number of the grooves 103 is equal to the number of the teeth 102.

A plurality of grooves 103 are provided on one of the end surfaces of the snap ring body 101. The groove 103 is a U-shaped groove, a cylindrical protrusion 104 is arranged on the bottom surface of the U-shaped groove, and the cylindrical protrusion 104 is arranged at the geometric center of the bottom surface of the U-shaped groove.

Referring to fig. 4, the tooth 102 is a plate, a first mounting hole 105 matched with the cylindrical protrusion 104 is provided at the geometric center of the plate-shaped tooth 102, and the cylindrical protrusion 104 passes through the first mounting hole 105 to be connected with the plate-shaped tooth 102.

Referring to fig. 3 and 5, a notch is provided between adjacent grooves 103. The notches include a first notch 106 that opens in a direction at the outer surface of the collet body 101 and a second notch 107 that opens in a direction at the inner surface of the collet body 101.

The depth of the first notch 106 is greater than the depth of the second notch 107.

In a preferred embodiment, the material of the snap ring body 101 is one of PE plastic, PP plastic, PV plastic, nylon plastic, other organic plastics, and rubber.

In a preferred embodiment, the teeth 102 are made of stainless steel.

Clasp body 101 laminates with the pipeline surface mutually, embraces pipeline surface and locks through the extrusion tightly, and then produces the tensile strength of impact-resistant pipeline, guarantees the stability of pipe connection, and the setting of notch can be when clasp body 101 receives the extrusion shrink, can be with the change girth evenly distributed when contracting for tooth portion atress after the extrusion is even, and the even a week that distributes to the pipeline of chucking power makes the ability of bearing pulling force better. The sheet-shaped tooth part has larger stress area and is suitable for various pipelines, even plastic steel pipelines.

Referring to fig. 5 to 7, a second embodiment of the present invention provides a composite tooth-press snap ring, which includes a snap ring body 201 and a tooth portion 202 disposed on the snap ring body, wherein the snap ring body 201 is made of plastic; the tooth 202 is made of metal, a groove 203 for accommodating the tooth 202 is formed in the snap ring body 201, and the tooth 202 is mounted in the groove 203. The number of the grooves 203 is multiple, the number of the teeth 202 is multiple, and the number of the grooves 203 is equal to the number of the teeth 202. A plurality of grooves 203 are provided on one of the end surfaces of the snap ring body 201. The groove 203 is a U-shaped groove, and steps 203a are arranged on two sides of the U-shaped groove. The bottom surface of the U-shaped groove is provided with a cylindrical protrusion 204, and the cylindrical protrusion 204 is arranged at the geometric center of the bottom surface of the U-shaped groove.

Referring to fig. 8, the tooth portion 202 includes a U-shaped body 202a and extending portions 202b extending from two sides of the U-shaped body 202a, a second mounting hole 205 is disposed at a geometric center of the U-shaped body 202a and adapted to the cylindrical protrusion 204, the cylindrical protrusion 204 passes through the second mounting hole 205 to be connected to the U-shaped body 202a, and the extending portions 202b are attached to the step 203 a.

Notches are provided between adjacent grooves 203. The notches include a first notch 206 with an opening direction on the outer surface of the snap ring body 201 and a second notch 207 with an opening direction on the inner surface of the snap ring body 201. The depth of the first notch 206 is greater than the depth of the second notch 207.

In a preferred embodiment, the material of the snap ring body 201 is one of PE plastic, PP plastic, PV plastic, nylon plastic, other organic plastics, and rubber.

In a preferred embodiment, the tooth 202 is made of stainless steel.

Clasp body 201 laminates with the pipeline surface mutually, embraces pipeline surface and locks through the extrusion tightly, and then produces the tensile strength of impact-resistant pipeline, guarantees the stability of pipe connection, and the setting of notch can be when clasp body 201 receives the extrusion shrink, can be with the change girth evenly distributed when contracting for tooth portion atress after the extrusion is even, and the even a week that distributes to the pipeline of chucking power makes the ability of bearing pulling force better. The U-shaped tooth part enables the stress to be on the tip, and is suitable for the hard pipeline.

Referring to fig. 9 to 11, a third embodiment of the present invention provides a composite tooth pressure snap ring, including a snap ring body 301 and a tooth portion 302 disposed on the snap ring body 301, wherein the snap ring body 301 is made of plastic; the tooth 302 is made of metal, the snap ring body 301 is provided with a groove 303 for accommodating the tooth 302, and the tooth 302 is installed in the groove 303. The number of the grooves 303 is plural, the number of the teeth 302 is plural, and the number of the grooves 303 is equal to the number of the teeth 302.

The groove 303 is disposed on the outer peripheral surface of the snap ring body 301, and the outer peripheral surface of the snap ring body 301 is a surface that is attached to the receiving groove of the mouthpiece.

Referring to fig. 12, the groove 303 is an L-shaped groove. Correspondingly, the tooth 302 is an L-shaped tooth, and the L-shaped tooth is snapped into the L-shaped groove to connect with the L-shaped groove.

Notches are provided between adjacent grooves 303. The notches include a first notch 306 having an opening direction on the outer surface of the snap ring body 201 and a second notch 307 having an opening direction on the inner surface of the snap ring body 301. The depth of the first notch 306 is greater than the depth of the second notch 307.

In a preferred embodiment, the material of the snap ring body 301 is one of PE plastic, PP plastic, PV plastic, nylon plastic, other organic plastics, and rubber.

In a preferred embodiment, the teeth 302 are made of stainless steel.

Clasp body 301 laminates with the pipeline surface mutually, embraces pipeline surface and locks through the extrusion tightly, and then produces the tensile strength of impact-resistant pipeline, guarantees the stability of pipe connection, and the setting of notch can be when clasp body 301 receives the extrusion shrink, can be with the change girth evenly distributed when contracting for tooth portion atress after the extrusion is even, and the even a week that distributes to the pipeline of chucking power makes the ability of bearing pulling force better. The L-shaped tooth parts are clamped into the L-shaped grooves, so that the L-shaped tooth parts are tightly coated by plastics, and the L-shaped groove is suitable for various pipelines, even plastic steel pipelines.

Referring to fig. 13, a fourth embodiment of the present invention provides a composite tooth pressure snap ring, which includes a snap ring body 401 and a tooth portion 402 disposed on the snap ring body, wherein the snap ring body 401 is made of plastic; the tooth 402 is made of metal, a groove for accommodating the tooth 402 is formed in the snap ring body 401, and the tooth 402 is mounted in the groove. The snap ring body 401 is provided with an opening 404. Wherein the radian of the opening is 10-25 degrees.

Referring to fig. 13-15, the teeth 402 of the split snap ring body 401 may be plate-shaped, U-shaped, and L-shaped.

The design of the opening 404 can effectively prevent interference when the snap ring body 401 is locked.

Referring to fig. 16-23, a sixth embodiment of the present invention provides a composite swage tube, comprising the composite tooth pressure snap ring 501, a mouthpiece 502 and a seal ring 503.

The socket 502 is provided with a first receiving groove 502a for receiving the meshing snap ring 501 and a second receiving groove 502b for receiving the seal ring 503.

The composite tooth pressure snap ring 501 may be an open type, and the tooth portion thereof may be a sheet, U, or L shape.

During the use, install sealing washer 503 in second holding tank 502b, install tooth pressure snap ring 501 in first holding tank, insert pipeline 500 in socket 502, use calliper to carry out the card pressure to socket 502, under the effect of extrusion force, sealing washer 503 is compressed and is realized sealing, and tooth pressure snap ring 501 hugs closely the pipeline and locks, realizes tensile structure in the axial.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.