Pipe clamp head high seal device

Abstract

The utility model provides a pipeline clamp head high sealing device, including the pipe fitting of group pair setting, the end part of pipe fitting is provided with the tight hoop subassembly, is provided with the connecting sleeve between two group tight hoop subassembly, and connecting sleeve and tight hoop subassembly are screwed together, both sides of connecting sleeve all are provided with the sealing ring, one side of sealing ring and the first convex ring of pipe fitting end part preset, tight hoop subassembly includes the first hoop ring and second hoop ring of symmetrical setting, be provided with the slot on first hoop ring and second hoop ring, the inner wall of slot is provided with first thread section, both ends of connecting sleeve all are provided with second thread section, first thread section and second thread section are screwed together. The utility model, sealing ring receives axial force, ensure the sealing effect between pipe fitting.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a high-sealing device for pipeline clamp heads. Background Technology

[0002] A clamp is a connecting device used to connect grooved pipe fittings, valves, and pipeline accessories. The most common structure involves a seal between two pipe fittings, which are then secured together using a clamping device. For example, the patent titled "A Clamp Elbow for Easy Installation," application number "CN202510022508.X," uses a sealing block between the elbow and the connecting pipe, followed by upper and lower clamps for clamping and fixing. In this design, the sidewalls of the upper and lower clamps are parallel. If the axial dimension of the sealing block is large, the upper and lower clamps will not easily clamp together. If the axial dimension of the sealing block is small, the axial force on the sealing block is limited, resulting in a defective seal.

[0003] In addition, the patent subject is "Quick Installation Clamp", application number "CN201920014592.0", from this patent... Figure 2 As shown, the inner wall of the groove of the clamp body is inclined. After installation, the component force of its inclined surface can provide axial force, thereby axially compressing and sealing, improving the sealing effect. However, the cross-sectional shape of the clamp body is similar to "V" shape, which is prone to deformation. Therefore, it is necessary to increase the thickness of the clamp body and improve its structural strength. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a high-sealing device for pipeline clamp heads, comprising paired pipe fittings. Each pipe fitting has a clamping assembly at its end. A connecting sleeve is provided between the two clamping assemblies, and the connecting sleeve and clamping assemblies are threaded together. Sealing rings are provided on both sides of the connecting sleeve, and one side of each sealing ring is connected to a pre-set first protruding ring at the end of the pipe fitting. In other words, the clamping assembly is fixed to the pipe fitting, and the two pipe fittings are connected via the connecting sleeve. The sealing rings between the pipe fittings allow for axial force on the sealing rings, ensuring a tight seal.

[0005] The clamping assembly includes a first clamping ring and a second clamping ring symmetrically arranged. The first and second clamping rings have slots, and the inner walls of the slots have first threaded sections. Both ends of the connecting sleeve have second threaded sections, and the first and second threaded sections are threaded together. The connecting sleeve and the clamping assembly are fixedly connected through this threaded connection.

[0006] Preferably, both the first and second hoop rings have connecting lugs at their ends, and bolts and nuts are provided at the connecting lugs. The first and second hoop rings are fixedly connected to the pipe fitting by means of bolts and nuts.

[0007] Preferably, the inner wall of the connecting sleeve is provided with a second protruding ring, and both ends of the second protruding ring are provided with grooves, which mate with one side of the sealing ring. The groove structure improves the stability of the sealing ring when installed on the connecting sleeve, facilitating subsequent connection of the sealing ring.

[0008] Preferably, the side wall of the connecting sleeve is provided with a retaining segment. This allows for easy rotation of the connecting sleeve using tools such as a wrench to achieve interconnection.

[0009] The beneficial effects of this utility model are as follows: 1. A connecting sleeve is provided, which is fixedly connected to the clamp assembly, and the sealing ring provided between them is subjected to axial clamping, thereby improving the sealing performance of the clamp.

[0010] 2. This device has a simple structure and is easy to use. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is an exploded view of the clamping assembly of this utility model; Figure 3 This is a three-dimensional schematic diagram of the connecting sleeve of this utility model; Figure 4 This is a partial cross-sectional view of the present invention.

[0012] List of reference numerals in the attached diagram: 1. Hoop assembly; 2. Connecting sleeve; 3. First convex ring; 4. Pipe fitting; 5. Sealing ring; 11. First hoop ring; 12. Slot; 13. Connecting lug; 14. Second hoop ring; 15. Bolt and nut; 16. First threaded section; 21. Second convex ring; 22. Second threaded section; 23. Locking section. Detailed Implementation

[0013] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0014] like Figures 1 to 4As shown, the pipeline clamp head high sealing device includes a pair of pipe fittings 4. The end of the pipe fitting 4 is provided with a clamping assembly 1. A connecting sleeve 2 is provided between the two sets of clamping assemblies 1, and the connecting sleeve 2 and the clamping assembly 1 are threadedly connected. That is, each end of the connecting sleeve 2 is connected to a clamping assembly 1. Both sides of the connecting sleeve 2 are provided with sealing rings 5. That is, after the connecting sleeve 2 is tightened, the sealing rings 5 ​​are subjected to axial force to ensure the seal between the pipe fittings 4. A first protruding ring 3 is preset on one side of the sealing ring 5 and the end of the pipe fitting 4. The setting of the first protruding ring 3 not only increases the contact area with the sealing ring 5, but also restricts the axial sliding of the clamping assembly 1 on the pipe fitting 4.

[0015] The clamping assembly 1 includes a first clamping ring 11 and a second clamping ring 14 symmetrically arranged. Both the first clamping ring 11 and the second clamping ring 14 are semi-circular and fit around the pipe fitting 4 in a circular shape. The first clamping ring 11 and the second clamping ring 14 are provided with slots 12, which together form an annular groove with an inner diameter slightly larger than the diameter of the first convex ring 3. The inner wall of the slot 12 is provided with a first threaded section 16. Both ends of the connecting sleeve 2 are provided with second threaded sections 22, and the threads of the two second threaded sections 22 are opposite in direction to ensure that when the connecting sleeve 3 is rotated, it can be connected or separated from the two clamping assemblies 1 at the same time. The first threaded section 16 and the second threaded section 22 are threadedly engaged, that is, the clamping assembly 1 and the connecting sleeve 2 are fixedly connected through the first threaded section 16 and the second threaded section 22.

[0016] Both the first hoop 11 and the second hoop 14 are provided with connecting ears 13 at their ends, and bolts and nuts 15 are provided at the connecting ears 13. Specifically, the connecting ears 13 are provided with through holes, and bolts are inserted into the through holes and then cooperate with nuts to achieve a fixed connection between the first hoop 11 and the second hoop 14.

[0017] The inner wall of the connecting sleeve 2 is provided with a second protruding ring 21. The purpose of the second protruding ring 21 is to axially press the sealing ring 5 after the connecting sleeve 2 is connected, so as to ensure the sealing effect. Both ends of the second protruding ring 21 are provided with grooves, and the grooves cooperate with one side of the sealing ring 5. The purpose of the grooves is to provide a relatively stable mating structure for the sealing ring 5 before the connecting sleeve 2 is installed, so as to prevent it from falling off.

[0018] The side wall of the connecting sleeve 2 is provided with a retaining segment 23. The retaining segment 23 is designed to facilitate the workpiece to be secured in the connecting sleeve 2 for connection.

[0019] Working principle: A clamping assembly 1 is fixedly installed at the end of the pipe fitting 4. When the clamping assembly 1 slides axially, it is restricted by the first convex ring 3. At this time, sealing rings 5 ​​are set inside both sides of the connecting sleeve 2. Then, the connecting sleeve 2 is placed between the two pipe fittings 4. A tool is used to clamp the connecting sleeve 2 and rotate it to achieve a fixed connection between both ends of the connecting sleeve 2 and the clamping assembly 1. Finally, the bolts and nuts 15 are tightened.

[0020] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A high-sealing device for pipeline clamp heads, comprising paired pipe fittings (4), wherein the end of the pipe fittings (4) is provided with a clamping assembly (1), characterized in that, A connecting sleeve (2) is provided between the two sets of clamping assemblies (1), and the connecting sleeve (2) and the clamping assembly (1) are threaded together. A sealing ring (5) is provided on both sides of the connecting sleeve (2), and a first protruding ring (3) is preset on one side of the sealing ring (5) and the end of the pipe fitting (4). The clamping assembly (1) includes a first clamping ring (11) and a second clamping ring (14) arranged symmetrically. The first clamping ring (11) and the second clamping ring (14) are provided with slots (12). The inner wall of the slots (12) is provided with a first threaded section (16). Both ends of the connecting sleeve (2) are provided with second threaded sections (22). The first threaded section (16) and the second threaded section (22) are threaded together.

2. The pipeline clamp head high sealing device according to claim 1, characterized in that: The ends of the first hoop (11) and the second hoop (14) are provided with connecting ears (13), and bolts and nuts (15) are provided at the connecting ears (13).

3. The pipeline clamp head high sealing device according to claim 1, characterized in that: The inner wall of the connecting sleeve (2) is provided with a second protruding ring (21), and both ends of the second protruding ring (21) are provided with slots, and the slots are matched with one side of the sealing ring (5).

4. The pipeline clamp head high sealing device according to claim 1, characterized in that: The side wall of the connecting sleeve (2) is provided with a locking segment (23).

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