CN215445405U - Pipeline compacting and sealing device and clamping and pressing structure thereof - Google Patents

Abstract

The utility model discloses a pipe pressing sealing device and its clamping structure, the latter includes: the clamping ring is sleeved on the pipeline to be clamped, the clamping ring faces towards one side of the pipeline to be clamped and is provided with a tooth-shaped structure, and the tooth-shaped structure is pressed on the pipeline to be clamped. In the use, make the card through the card pressure ring shrink locking, the tooth of profile of tooth structure tightens up in the surface of treating the card pressure pipeline simultaneously, forms sufficient locking force, compares with prior art, and it utilizes the locking force that the profile of tooth structure provided, has solved the pipe joint among the prior art and has compressed tightly the relatively poor technical problem of effect.

Description

Pipeline compacting and sealing device and clamping and pressing structure thereof

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a pipeline compression sealing device and a clamping and pressing structure thereof.

Background

During hydraulic or pneumatic transport, multiple lines of docking and communication are typically required. In prior art, the form that adopts the staple bolt more realizes being connected between two adjacent pipelines, and annular staple bolt cover is established at pipeline seam crossing to compress tightly through the mode that the bolt was screwed, and in order to guarantee the leakproofness, need set up the sealing washer between annular staple bolt and the pipeline seam crossing.

However, the traditional pipe joint realizes the press fit fixation between the connecting piece and the pipeline through the screwing of the bolt, the operation is complex, the pressing force completely depends on the pretightening force of the bolt, the screwing force of the bolt is transmitted to the pipeline through the hoop, the pressing effect is poor, and the effective locking of the pipeline cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least partially solve the technical problem of poor compaction effect of the pipe joint in the prior art. The purpose is realized by the following technical scheme:

a clamping structure for a pipe clamp seal, comprising:

the clamping ring is sleeved on the pipeline to be clamped, the clamping ring faces towards one side of the pipeline to be clamped and is provided with a tooth-shaped structure, and the tooth-shaped structure is pressed on the pipeline to be clamped.

Further, the profile of tooth structure includes at least a set of annular tooth, the annular tooth is followed the circumference of clamping ring extends, the annular tooth includes convex tooth portion and concave tooth portion, convex tooth portion with treat that the card presses pipeline pressfitting mutually.

Further, the annular tooth includes three convex tooth portion, forms respectively between two adjacent convex tooth portion concave tooth portion is formed for the inside wall of clamping ring is to the direction of its outside wall is sunken.

Further, the annular tooth includes two convex tooth portion and by two concave tooth portion that convex tooth portion formed, two convex tooth portion is the inside wall of clamping ring is to the outside protruding formation of the direction of keeping away from its outside wall.

Furthermore, the annular tooth includes a concave tooth portion and is located the convex tooth portion of concave tooth portion both sides, concave tooth portion is the inside wall of clamping ring is to the direction sunken formation of its outside wall.

Furthermore, an opening is formed in the ring body of the clamping ring.

Furthermore, the tooth profile structure includes at least a set of axial tooth group, axial tooth group includes a plurality of axial teeth, and each axial tooth all sets up along the thickness direction of clamping ring, each the tooth of axial tooth all with treat that the clamping ring is pressfitting mutually.

Further, still include the leak protection snap ring, leak protection snap ring cover is located treat the card and press the pipeline.

Further, be provided with the buckle on the leak protection snap ring, the draw-in groove has been seted up on the card clamping ring, the buckle joint fixed with in the draw-in groove.

Further, the inside wall of card clamping ring is provided with the kink that the axis direction extends, axial tooth group set up in on the kink.

The utility model also provides a pipe compacting and sealing device, which comprises:

the clamping and pressing bellmouth is sleeved on the periphery of the pipeline to be clamped and pressed, and an annular groove is formed in the inner side wall of the clamping and pressing bellmouth;

the clamping and pressing ring of the clamping and pressing structure is embedded in the ring groove.

Further, the leak-proof snap ring of the clamping and pressing structure comprises a ring body and a fracture part arranged on the ring body; the ring body is sleeved on the pipeline to be clamped and positioned outside the clamping pressure socket, and the fracture part extends into the clamping pressure socket and is fixedly connected with the inner wall of the clamping pressure socket.

Further, still include the sealing washer, the seal groove has been seted up to the inside wall of card pressure bellmouth, the sealing washer inlay dress in the seal groove, and with treat that the card presses the pipeline to laminate mutually.

Further, one side of the sealing ring, which faces the pipeline to be clamped and pressed, is provided with a fluid self-sealing structure.

According to the pipeline compacting and sealing device and the clamping and pressing structure thereof, the tooth-shaped structure is arranged on one side, facing the pipeline to be clamped and pressed, of the clamping and pressing ring, and the tooth-shaped structure is pressed on the pipeline to be clamped and pressed, so that the pressing effect of the pipe joint is improved. In the use, make the card through the card pressure ring shrink locking, the tooth of profile of tooth structure tightens up in the surface of treating the card pressure pipeline simultaneously, forms sufficient locking force, compares with prior art, and it utilizes the locking force that the profile of tooth structure provided, has solved the pipe joint among the prior art and has compressed tightly the relatively poor technical problem of effect.

Meanwhile, other embodiments of the utility model also have at least the following additional technical effects:

the structure form of multiple layers of annular teeth is adopted, so that the tooth-shaped structure can have different numbers of triangular locking structures, and the annular teeth shrink and lock in the clamping and pressing process, so that multiple locking effects are achieved;

the clamping and pressing ring is contracted to lock the axial teeth in the clamping and pressing process, and the plurality of teeth can be tightened on the outer surface of a pipeline to be clamped and pressed, so that better locking force is formed, and a better locking effect is achieved;

the fluid self-sealing structure is arranged on the sealing ring, so that after locking, if fluid enters the position of the sealing ring, the fluid can be self-sealed under the pressure of the internal fluid, and the sealing performance is ensured;

the leakage-proof snap ring is provided with a buckle structure fixed with the snap ring, when the leakage-proof snap ring and the snap ring are tightened, the leakage-proof snap ring and the snap ring are simultaneously tightened on the outer wall of the pipeline to be clamped and pressed, and the leakage-proof snap ring can be tightly held with the pipeline after the leakage-proof sealing structure is tightened, so that the leakage-proof effect is improved;

the anti-leakage clamp ring is provided with a fracture part, when the anti-leakage clamp ring is tightened, the fracture part fractures, a ring body of the anti-leakage clamp ring is left outside the clamping pressure bell mouth, and the rest structure is tightly held with a pipeline after the device is tightened, so that the anti-leakage effect is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings.

Fig. 1 is a schematic structural diagram of an implementation manner of a chucking ring in the chucking structure provided by the present invention;

FIG. 2 is a plan view of the card collar shown in FIG. 1;

FIG. 3 is a cross-sectional view of the snap ring of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural diagram of another implementation manner of the chucking ring in the chucking structure provided by the present invention;

FIG. 6 is a plan view of the snap ring of FIG. 5;

FIG. 7 is a cross-sectional view of the snap ring of FIG. 5;

FIG. 8 is an enlarged view of portion B of FIG. 7;

fig. 9 is a schematic structural diagram of another implementation manner of the chucking ring in the chucking structure according to the present invention;

FIG. 10 is a plan view of the card collar shown in FIG. 9;

FIG. 11 is a cross-sectional view of the snap ring of FIG. 9;

FIG. 12 is an enlarged view of portion C of FIG. 11;

FIG. 13 is a schematic view of an embodiment of a leak-proof snap ring in a snap structure according to the present invention;

FIG. 14 is a plan view of the leak-proof snap ring of FIG. 13;

FIG. 15 is a cross-sectional view of the leak-proof snap ring of FIG. 13 in an installed state;

FIG. 16 is an enlarged view of portion D of FIG. 15;

FIG. 17 is an exploded view of the present invention providing a duct compression seal having the snap ring of FIG. 1;

FIG. 18 is an axial cross-sectional view of the pipe compression seal of FIG. 17;

fig. 19 is an enlarged view of portion E of fig. 18;

FIG. 20 is a cross-sectional view of the center pressure socket of the pipe compression sealing device of FIG. 17;

FIG. 21 is an enlarged view of portion F of FIG. 20;

FIG. 22 is a schematic view of a middle seal ring of the pipe compression sealing apparatus shown in FIG. 17;

FIG. 23 is a cross-sectional view of the seal ring of FIG. 22;

fig. 24 is an enlarged view of portion G of fig. 23;

FIG. 25 is a schematic view of a snap ring having axial sets of teeth;

FIG. 26 is a plan view of the card collar shown in FIG. 25;

fig. 27 is an enlarged view of portion H of fig. 25;

FIG. 28 is an exploded view of the tube compression seal provided by the present invention with the clamping ring of FIG. 25;

FIG. 29 is an axial cross-sectional view of the pipe compression seal of FIG. 28;

fig. 30 is an enlarged view of portion I of fig. 29.

Description of reference numerals:

100-pipe to be clamped

1-clamping ring 11-annular teeth 111-convex teeth part 112-concave teeth part 12-opening

13-axial tooth group 131-tooth 14-clamping groove

2-leak-proof snap ring 21-buckle 22-ring body 23-fracture part

3-clamping pressure socket 31-ring groove 32-sealing groove

4-sealing ring 41-fluid self-sealing structure

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In a specific embodiment, the clamping and pressing structure provided by the utility model is applied to a pipeline clamping and sealing device, and particularly can be used for clamping and pressing the joint of a thin-wall metal pipeline or a common metal pipeline, and the clamping and pressing performance is improved by arranging the tooth-shaped structure.

As shown in fig. 1-12, the clamping structure comprises a clamping ring 1, the clamping ring 1 is sleeved on the pipeline 100 to be clamped, the clamping ring 1 faces towards one side of the pipeline 100 to be clamped, a tooth-shaped structure is arranged on the side, pressed on the pipeline 100 to be clamped, of the tooth-shaped structure. In the working process, the clamping ring 1 is sleeved at the position of the pipeline to be compressed, the outer wall of the pipeline is pressed through the tooth-shaped structure, and the tooth-shaped structure deforms under the action of pressure and is compressed on the pipe wall, so that sufficient pressing force is ensured.

In different embodiments, the tooth-shaped structure may be in various forms, for example, the tooth-shaped structure may be opened along the circumferential direction of the inner circumferential wall of the snap ring 1, and may extend along the circumferential wall for one circle, or may be provided in multiple sections intermittently in the circumferential direction of the circumferential wall. Specifically, when the tooth-shaped structure is the above-mentioned annular opening structure, the tooth-shaped structure includes at least one set of annular tooth 11, annular tooth 11 extends along the circumference of clamping ring 1, annular tooth 11 includes convex tooth portion 111 and concave tooth portion 112, convex tooth portion 111 with wait to clamp and press pipeline 100 looks pressfitting. Like this, adopt the structural style of multilayer annular tooth 11 for the profile of tooth structure can have the triangle locking structure of different quantity, and at the card pressure in-process, annular tooth 11 shrink locking has multiple locking effect.

In an actual product, the annular tooth 11 may be provided with multiple layers of locking structures, for example, two layers, three layers, or multiple layers, and the number of layers of the specific locking structure may be determined according to a use situation, which is not described herein. Also, the structure of the ring-shaped teeth 11 is also adopted, and the specific form of the ring-shaped teeth 11 can also adopt a plurality of different implementation modes. Specifically, as shown in fig. 1 to 4, the annular tooth 11 includes three convex tooth portions 111, and concave tooth portions 112 are respectively formed between two adjacent convex tooth portions 111, where the concave tooth portions 112 are formed by recessing an inner side wall of the chuck ring 1 toward an outer side wall thereof. When taking this structural style, can adopt integrated into one piece technology for the clamping ring 1 is smooth inside wall outside (being to the direction that is close to clamping ring 1 lateral wall promptly) sunken originally, thereby forms two concave tooth portion 112 of indent, owing to local indent, must form protruding structure in concave tooth portion 112's both sides, and these protruding structures form convex tooth portion 111, when setting up two concave tooth portion 112, then have three convex tooth portion 111.

For another example, as shown in fig. 5 to 8, the annular tooth 11 includes two convex tooth portions 111 and a concave tooth portion 112 formed by the two convex tooth portions 111, and the two convex tooth portions 111 are formed by protruding an inner side wall of the chuck ring 1 in a direction away from an outer side wall thereof. That is, the inner wall of the chucking ring 1 is provided with the convex tooth portions 111 protruding from the inner wall of the chucking ring 1 by welding, bonding, integral molding, or the like, and when there are two convex tooth portions 111, the concave tooth portions 112 are inevitably formed between the two convex tooth portions 111.

In another embodiment, as shown in fig. 9 to 12, the ring-shaped tooth 11 may further include a concave tooth portion 112 and convex tooth portions 111 located at both sides of the concave tooth portion 112, and the concave tooth portion 112 is formed by recessing an inner sidewall of the chuck ring 1 toward an outer sidewall thereof. Namely, an annular concave tooth part 112 is processed on the inner side wall of the clamping and pressing ring 1 by processes such as integral molding, and a convex tooth part 111 is respectively formed on both sides of the concave tooth part 112.

The above-described form of the annular tooth 11 is merely an example, as long as a tooth structure with a protrusion can be realized and the tube wall can be pressed by the tooth structure when pressing. For example, in the embodiment not shown in the drawings, the annular teeth 11 may be in various forms such as a tooth-shaped structure that is obliquely arranged, a plurality of tooth-shaped structures that are independently annularly arranged, or a tooth-shaped structure that is spirally arranged. It should be understood that the tooth-shaped structures in various forms fall within the scope of the present invention, and are not exhaustive.

In this embodiment, as shown in fig. 1, 2, 5, 6, 9 and 10, an opening 12 is opened on a ring body 22 of the clamping ring 1, and during the installation and extrusion process, the opening 12 is continuously reduced until the pipe is reduced to an extreme position and then clasps the pipe, so that the multi-pipe can be locked.

When card clamping ring 1 has above-mentioned annular tooth 11, this card presses structure still includes leak protection snap ring 2, please refer to fig. 13 and fig. 14, 2 covers of leak protection snap ring are located treat the card and press pipeline 100, this leak protection snap ring 2 sets up in the outer end of card clamping ring 1, also namely opening 12 department that card clamping ring 1 is close to card pressure socket 3 is provided with above-mentioned leak protection snap ring 2, sets up when through leak protection snap ring 2 and card clamping ring 1, not only can realize effective calorie of pressure, can also avoid liquid to omit through the setting of leak protection snap ring 2.

As shown in fig. 15 and 16, the leak-proof snap ring 2 of the snap structure includes a ring body 22 and a breaking part 23 mounted on the ring body 22; the ring body 22 is sleeved on the pipeline 100 to be clamped and positioned outside the clamping pressure socket 3, and the fracture part 23 extends into the clamping pressure socket 3 and is fixedly connected with the inner wall of the clamping pressure socket 3. Thus, the anti-leakage snap ring 2 is provided with the fracture part 23, when the anti-leakage snap ring is tightened, the fracture part 23 is fractured, the ring body 22 of the anti-leakage snap ring 2 is left outside the clamping pressure socket 3, and the rest structure is tightly held with the pipeline after the device is tightened, so that the anti-leakage effect is improved.

The breaking portion 23 should be a breakable structure, for example, a strip-shaped structure may be formed by reducing the circumferential dimension and increasing the axial dimension to facilitate breaking, or a material with poor plasticity and easy breaking such as hard plastic may be used as the material of the breaking portion 23.

On the basis of the above embodiment, the present invention further provides a pipe compression sealing device, as shown in fig. 17-19, which comprises a clamping socket 3, a sealing ring 4 as shown in fig. 22, and the above clamping structure, wherein the clamping structure comprises a clamping ring 1 and a leak-proof clamping ring 2. As shown in fig. 20 and fig. 21, the clamping pressure socket 3 is a basic portion of the whole sealing device, and is used for being sleeved outside the pipe wall, and the clamping pressure socket 3 has a limit step, and the end of the pipeline 100 to be clamped is abutted against the limit step to realize axial limit, the clamping pressure socket 3 is sleeved on the periphery of the pipeline 100 to be clamped, and an annular groove 31 and a sealing groove 32 are provided on the inner side wall of the clamping pressure socket 3, the clamping pressure ring 1 of the clamping pressure structure is embedded in the annular groove 31, and the sealing ring 4 is embedded in the sealing groove 32, and is attached to the pipeline 100 to be clamped. As shown in fig. 22 to 24, a fluid self-sealing structure is disposed on one side of the sealing ring 4 facing the pipe 100 to be clamped and pressed, and the fluid self-sealing structure is disposed on the sealing ring 4, so that after locking, if fluid enters the position of the sealing ring 4, the fluid can be self-sealed under the pressure of the internal fluid, and the sealing performance is ensured.

With continued reference to fig. 15 and 16, the anti-leakage snap ring 2 of the snap structure includes a ring body 22 and a breaking portion 23 mounted on the ring body 22; the ring body 22 is sleeved on the pipeline 100 to be clamped and positioned outside the clamping pressure socket 3, and the fracture part 23 extends into the clamping pressure socket 3 and is fixedly connected with the inner wall of the clamping pressure socket 3. When the device is tightened, the fracture part 23 is fractured, so that the ring body 22 of the anti-leakage snap ring 2 is left outside the clamping pressure socket 3, and the rest structure is tightly held with the pipeline after the device is tightened, thereby improving the anti-leakage effect.

In another embodiment, the tooth-shaped structure is not limited to the above-described structural form of the annular tooth 11. As shown in fig. 25 to 27, the tooth-shaped structure includes at least one axial tooth group 13, the axial tooth group 13 includes a plurality of axial teeth, each axial tooth is disposed along the thickness direction of the clamping ring 1, and the tooth 131 of each axial tooth is pressed with the pipe 100 to be clamped. Adopt the structural style of multistage axial tooth group 13 for the inner circle of clamping ring 1 distributes the axial tooth according to the section, and tooth 131 that can be comparatively intensive a plurality of axial teeth of distribution on every distribution section, at the clamping in-process, the contraction of clamping ring 1 makes the axial tooth locking, and a plurality of teeth 131 can tighten up in treating the surface of clamping pressure pipeline 100, thereby form better locking force, have better locking effect.

Specifically, six sets of axial tooth groups 13 may be provided in the circumferential direction of the chucking ring 1, and the number of axial teeth included in each set of axial tooth groups 13 is equal to ensure sufficient pressing force and improve uniformity of force application in the circumferential direction. Each set of axial teeth 13 may have a certain interval to avoid the structure of the catch 21 and the opening 12 provided on the catch ring 1. In theory, the axial tooth sets 13 are not limited to six, and may be provided according to the use requirement and the number of structures to be avoided, for example, three, four or more sets may be provided.

When clamping ring 1 has above-mentioned axial tooth group 13, this card presses the structure and also can include leak protection snap ring 2, as shown in fig. 28, 2 covers of leak protection snap ring are located treat that the card presses pipeline 100, be provided with buckle 21 on the leak protection snap ring 2, draw-in groove 14 has been seted up on clamping ring 1, buckle 21 the joint fixed with in the draw-in groove 14. Like this, have on the leak protection snap ring 2 with the buckle 21 structure of card clamping ring 1 looks fixed, when tightening up, this leak protection snap ring 2 tightens up in treating the outer wall that the card pressed pipeline 100 with card clamping ring 1 simultaneously, can hold tightly with the pipeline after leak protection seal structure tightens up, improves the leak protection effect.

Specifically, the inside wall of clamping ring 1 is provided with the kink that the axis direction extends, axial tooth group 13 set up in on the kink to improve the space rationality.

On the basis of the above embodiment, the present invention further provides a pipe compression sealing device, as shown in fig. 28-30, which comprises a clamping socket 3, a sealing ring 4 as shown in fig. 22, and the above clamping structure, wherein the clamping structure comprises a clamping ring 1 and a leak-proof clamping ring 2. As shown in the foregoing fig. 20 and fig. 21, the clamping pressure socket 3 is a basic portion of the whole sealing device, and is configured to be sleeved outside the pipe wall, and the clamping pressure socket 3 has a limit step, and an end of the pipe 100 to be clamped abuts against the limit step to realize axial limiting, the clamping pressure socket 3 is configured at the periphery of the pipe 100 to be clamped, and an annular groove 31 and a sealing groove 32 are formed in an inner side wall of the clamping pressure socket 3, the clamping pressure ring 1 of the clamping pressure structure is embedded in the annular groove 31, and the sealing ring 4 is embedded in the sealing groove 32, and is attached to the pipe 100 to be clamped. With continued reference to fig. 22 to 24, a fluid self-sealing structure is disposed on a side of the sealing ring 4 facing the pipe 100 to be clamped and pressed, and the fluid self-sealing structure is disposed on the sealing ring 4, so that after locking, if a fluid enters the position of the sealing ring 4, the fluid can be self-sealed under the pressure of the internal fluid, thereby ensuring the sealing performance.

In this embodiment, the leak-proof snap ring 2 is installed on the snap ring 1 through the matching structure of the buckle 21 and the snap groove 14, and after the two are fixedly connected into a whole, the leak-proof snap ring is pressed tightly on the periphery of the pipeline, so that the leak-proof snap ring has better compression performance.

In summary, in the embodiments, the pipe compressing and sealing device and the clamping and pressing structure thereof provided by the present invention have the tooth-shaped structure disposed on the side of the clamping and pressing ring 1 facing the pipe 100 to be clamped and pressed, and are pressed on the pipe 100 to be clamped and pressed through the tooth-shaped structure, so as to improve the pressing effect of the pipe joint. In the use, make clamping ring 1 shrink locking through the card pressure, tooth 131 of profile of tooth structure tightens up in treating the surface of card pressure pipeline 100 simultaneously, forms sufficient locking force, compares with prior art, and it utilizes the locking force that the profile of tooth structure provided, has solved the pipe joint among the prior art and has compressed tightly the relatively poor technical problem of effect.

Meanwhile, the embodiment of the utility model also has at least the following additional technical effects:

1. the structure form of multiple layers of annular teeth 11 is adopted, so that the tooth-shaped structure can have different numbers of triangular locking structures, and in the clamping and pressing process, the annular teeth 11 are contracted and locked, so that multiple locking effects are achieved;

2. the structure form of the multi-section axial tooth group 13 is adopted, so that axial teeth are distributed on the inner ring of the clamping ring 1 in sections, teeth 131 of a plurality of axial teeth can be distributed on each distribution section more densely, in the clamping and pressing process, the clamping ring 1 contracts to enable the axial teeth to be locked, and the plurality of teeth 131 can be tightened on the outer surface of the pipeline to be clamped and pressed, so that better locking force is formed, and a better locking effect is achieved;

3. the sealing ring 4 is provided with a fluid self-sealing structure, so that after locking, if fluid enters the position of the sealing ring 4, the fluid can be self-sealed under the pressure action of the internal fluid, and the sealing performance is ensured;

4. the leakage-proof snap ring 2 is provided with a buckle 21 structure fixed with the clamping ring 1, when being tightened, the leakage-proof snap ring 2 and the clamping ring 1 are simultaneously tightened on the outer wall of the pipeline to be clamped and pressed, and the leakage-proof seal structure can be tightly held with the pipeline after being tightened, so that the leakage-proof effect is improved;

5. the anti-leakage snap ring 2 is provided with a fracture part 23, when the anti-leakage snap ring is tightened, the fracture part 23 is fractured, so that the ring body 22 of the anti-leakage snap ring 2 is left outside the clamping pressure socket 3, and the rest structure is tightly held with a pipeline after the device is tightened, thereby improving the anti-leakage effect.

Like this, in the use, use calliper to push card pressure bellmouth 3, in extrusion compression process, the card pressure ring of card pressure bellmouth 3 internally mounted, leak protection snap ring 2 and sealing washer 4 tighten up in step, and at the in-process that tightens up, the profile of tooth structure (being annular tooth 11 or the tooth 131 of axial tooth group 13) that card pressure ring inner wall set up radially tightens up to hug closely the outer wall of treating the card pressure pipeline, and produce at the outer wall and embrace the power of tightly, and produce the tensile strength of card pressure bellmouth 3 and pipe connection simultaneously. Meanwhile, the sealing ring 4 is compressed in the extrusion process, radially shrinks and clasps and generates sealing force, and tight sealing connection is generated between the metal pipeline and the clamping pressure socket 3, so that fluid in the pipeline is sealed. Due to the adoption of the clamping and pressing structure, the connecting strength is high, the vibration resistance is good, the reliable compression and connection of the connecting parts are realized, the looseness of the connecting parts is avoided, and the pressing performance is improved. Moreover, the structure is convenient and fast to construct, field welding, threading or groove rolling operation is avoided, and the operation can be completed only by adopting a hydraulic tool for clamping and pressing connection, so that the working time and the production cost are obviously reduced, and the success rate of one-time installation is higher.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (18)

1. The utility model provides a clamping structure for pipeline compresses tightly sealing device which characterized in that includes:

card clamping ring (1), card clamping ring (1) cover is located and is waited to block and press pipeline (100), card clamping ring (1) orientation one side of waiting to block and pressing pipeline (100) is provided with the profile of tooth structure, and passes through profile of tooth structure pressfitting in wait to block and press pipeline (100).

2. The clamping structure according to claim 1, wherein the tooth-shaped structure comprises at least one set of annular teeth (11), the annular teeth (11) extend along the circumferential direction of the clamping ring (1), the annular teeth (11) comprise a convex tooth part (111) and a concave tooth part (112), and the convex tooth part (111) is pressed with the pipeline (100) to be clamped.

3. The clamping and pressing structure according to claim 2, wherein the annular teeth (11) comprise three convex tooth portions (111), the concave tooth portions (112) are respectively formed between two adjacent convex tooth portions (111), and the concave tooth portions (112) are formed by recessing the inner side wall of the clamping and pressing ring (1) towards the direction of the outer side wall thereof.

4. The clamping and pressing structure according to claim 2, wherein the annular tooth (11) comprises two convex tooth parts (111) and a concave tooth part (112) formed by the two convex tooth parts (111), and the two convex tooth parts (111) are formed by outwards protruding the inner side wall of the clamping and pressing ring (1) in a direction away from the outer side wall of the clamping and pressing ring.

5. The clamping and pressing structure as claimed in claim 2, wherein the annular tooth (11) comprises a concave tooth part (112) and convex tooth parts (111) positioned at two sides of the concave tooth part (112), and the concave tooth part (112) is formed by recessing the inner side wall of the clamping and pressing ring (1) towards the direction of the outer side wall thereof.

6. The clamping and pressing structure according to any one of claims 1 to 5, characterized in that the clamping and pressing ring (1) has an opening (12) formed in the ring body (22).

7. The clamping and pressing structure of claim 1, wherein the tooth-shaped structure comprises at least one axial tooth group (13), the axial tooth group (13) comprises a plurality of axial teeth, each axial tooth is arranged along the thickness direction of the clamping ring (1), and the teeth (131) of each axial tooth are pressed with the pipeline (100) to be clamped and pressed.

8. The clamping structure according to any one of claims 1 to 5, further comprising a leak-proof snap ring (2), wherein the leak-proof snap ring (2) is sleeved on the pipe (100) to be clamped.

9. The clamping and pressing structure as claimed in claim 6, further comprising a leak-proof clamping ring (2), wherein the leak-proof clamping ring (2) is sleeved on the pipeline (100) to be clamped and pressed.

10. The clamping and pressing structure as claimed in claim 7, further comprising a leak-proof clamping ring (2), wherein the leak-proof clamping ring (2) is sleeved on the pipeline (100) to be clamped and pressed.

11. The clamping and pressing structure of claim 8, wherein a buckle (21) is arranged on the leak-proof clamping ring (2), a clamping groove (14) is formed in the clamping ring (1), and the buckle (21) is clamped and fixed in the clamping groove (14).

12. The clamping and pressing structure of claim 9, wherein a buckle (21) is arranged on the leak-proof clamping ring (2), a clamping groove (14) is formed in the clamping ring (1), and the buckle (21) is clamped and fixed in the clamping groove (14).

13. The clamping and pressing structure of claim 10, wherein a buckle (21) is arranged on the leak-proof clamping ring (2), a clamping groove (14) is formed on the clamping ring (1), and the buckle (21) is clamped and fixed in the clamping groove (14).

14. The clamping and pressing structure according to claim 10 or 13, wherein a bending portion extending in the central axis direction is arranged on the inner side wall of the clamping and pressing ring (1), and the axial tooth group (13) is arranged on the bending portion.

15. A pipe crimping sealing device, comprising:

the clamping and pressing bellmouth (3) is sleeved on the periphery of the pipeline (100) to be clamped and pressed, and an annular groove (31) is formed in the inner side wall of the clamping and pressing bellmouth (3);

the clamping and pressing structure according to any one of claims 1 to 14, wherein the clamping ring (1) of the clamping and pressing structure is embedded in the annular groove (31).

16. The pipe compression sealing device of claim 15, wherein the leak-proof snap ring (2) of the clamping and pressing structure comprises a ring body (22) and a breaking part (23) mounted on the ring body (22); the ring body (22) is sleeved on the pipeline (100) to be clamped and located outside the clamping pressure socket (3), and the fracture part (23) extends into the clamping pressure socket (3) and is fixedly connected with the inner wall of the clamping pressure socket (3).

17. The pipeline pressing and sealing device according to claim 15 or 16, further comprising a sealing ring (4), wherein a sealing groove (32) is formed in an inner side wall of the clamping and pressing socket (3), and the sealing ring (4) is embedded in the sealing groove (32) and attached to the pipeline (100) to be clamped and pressed.

18. The pipeline compression sealing device according to claim 17, wherein a fluid self-sealing structure (41) is arranged on a side of the sealing ring (4) facing the pipeline (100) to be clamped and pressed.

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