Clamping and pressing type pipe fitting with limiting function

Abstract

The utility model discloses a clamping and pressing type pipe fitting with a limiting function. The clamping and pressing type pipe fitting comprises a pipe body, the connector assembly is used for connection at a pipe body connector, and the inner wall of the connector assembly is connected with the outer wall of the pipe body in an inserted mode; the clamping ring is used for limiting the clamping and pressing position of the clamping and pressing tool, and the inner wall of the clamping ring is fixedly connected with the outer wall of the connector assembly. According to the device, the sliding ring and the clamping ball are arranged, during connection, the sliding ring is pushed towards the side close to the sleeve, then the pipe body is inserted into the sleeve, the sliding ring is loosened, the compression spring drives the sliding ring to reset, the clamping ball is extruded into the trapezoidal groove, and therefore the pipe body and the sleeve can be prevented from sliding relatively to be dislocated during clamping and pressing; after the pipe body is inserted into the sleeve, the pipe body extrudes the V-shaped gasket, at the moment, the two sides of the V-shaped gasket make contact with the inner wall of the sleeve and the outer wall of the limiting ring respectively, and leakage can be prevented when fluid flows.

Description

Technical Field

[0001] The utility model relates to the technical field of compression type pipe fittings, in particular to a compression type pipe fitting with a position limiting function. Background Art

[0002] The compression fitting is a kind of pipe connector with the characteristics of reliable connection and easy installation. Its working principle is: after inserting the pipe into the fitting, use a special compression tool to squeeze the fitting to deform it and hold the pipe tightly, so as to achieve sealing and connection.

[0003] In the prior art, after the pipe is inserted into the pipe fitting, the staff is required to manually draw lines at the interface of the pipe to determine the position of the pipe fitting relative to the pipe, and then grind and polish the joint part of the pipe. After polishing, it is inserted into the pipe fitting and crimped using a crimping tool. After the pipe fitting is inserted into the pipe for the second time, although there are lines on the surface of the pipe, the pipe may still be misaligned with the pipe fitting during crimping, which may lead to the risk of leakage in the pipeline after crimping. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model adopts the following technical solution to solve the technical problems: a clamping type pipe fitting with a limiting function, comprising: a pipe body; a joint assembly, the joint assembly is used for connection at the interface of the pipe body, the inner wall of the joint assembly is plugged into the outer wall of the pipe body; a clamping ring, the clamping ring is used to limit the clamping position of the clamping tool, the inner wall of the clamping ring is fixedly connected to the outer wall of the joint assembly; the outer wall of the joint assembly is slidably connected with a sliding ring, the outer wall of the sliding ring is fixedly connected with a compression spring, the outer wall of the joint assembly is clamped with a clamping bead, the sliding ring is first pushed toward the side close to the sleeve, forcing the compression spring to be compressed, at which time the clamping bead can move between the sliding ring and the sleeve, and then the pipe body is inserted into the sleeve, and when the clamping bead is aligned with the opening of the trapezoidal groove, the sliding ring is released, and at this time the compression spring drives the sliding ring to reset;

[0005] The joint assembly includes a sleeve, the inner wall of the sleeve is fixedly connected to a limiting ring, the outer wall of the limiting ring is clamped with a concave rubber ring through a limiting groove, and the limiting groove is opened in the wall of the limiting ring, the inner wall of the sleeve is clamped with a sealing ring through an annular groove, and the annular groove is opened in the wall of the sleeve, during the flow of fluid, the fluid impacts the concave rubber ring installed in the limiting groove, so that the protrusions on both sides of the concave rubber ring expand outward and fit tightly against the inner wall of the tube body, thereby preventing leakage when the fluid flows.

[0006] Preferably, the inner wall of the tube body is clamped with the outer wall of the bead through a trapezoidal groove, and the trapezoidal groove is opened in the wall of the tube body, the end of the compression spring away from the sliding ring is fixedly connected to the outer wall of the joint assembly, the outer wall of the sleeve is slidably connected to the outer wall of the sliding ring, and the outer wall of the sliding ring is in contact with the outer wall of the bead, and when the bead is squeezed into the trapezoidal groove, the position of the tube body and the sleeve can be locked.

[0007] Preferably, the outer wall of the limiting ring is clamped with a V-shaped gasket through a slot, and the slot is opened in the wall of the limiting ring. The V-shaped gasket is arranged in a circular array along the central axis of the limiting ring. The outer wall of the V-shaped gasket contacts the inner wall of the sleeve. When the tube body slides between the sleeve and the limiting ring, the V-shaped gasket in the slot is squeezed to deform the V-shaped gasket. At this time, the two sides of the V-shaped gasket are respectively in contact with the inner wall of the sleeve and the outer wall of the limiting ring, which can prevent leakage when the fluid flows.

[0008] Preferably, the inner wall of the sleeve is clamped with a dust ring through a mounting groove, and the mounting groove is opened in the wall of the sleeve, the outer wall of the dust ring is in contact with the outer wall of the tube body, and the dust ring installed in the mounting groove is close to the outer wall of the tube body, which can prevent dust from entering the gap between the sleeve and the tube body.

[0009] Preferably, the outer wall of the tube body is plugged into the inner wall of the sleeve, the outer wall of the limiting ring is plugged into the inner wall of the tube body, the outer wall of the sealing ring is in contact with the inner and outer walls of the tube body, the outer wall of the tube body is in contact with the outer wall of the concave rubber ring, and the sealing ring is tightly attached to the outer wall of the tube body, which can further prevent leakage when the fluid flows.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model provides a sliding ring and a card bead. When connecting, the sliding ring is first pushed to the side close to the sleeve, and then the tube body is inserted into the sleeve. After that, the sliding ring is released. At this time, the compression spring drives the sliding ring to reset and squeezes the card bead into the trapezoidal groove, thereby locking the position of the tube body and the sleeve to prevent relative sliding and dislocation between the tube body and the sleeve during clamping.

[0012] 2. The utility model sets a joint assembly. After the tube body is inserted into the sleeve, the tube body squeezes the V-shaped gasket, causing the V-shaped gasket to deform. At this time, the two sides of the V-shaped gasket are respectively in contact with the inner wall of the sleeve and the outer wall of the limit ring, which can prevent leakage when the fluid flows.

[0013] 3. The utility model sets a joint assembly. During the flow of fluid, the fluid impacts the concave rubber ring installed in the limiting groove, so that the protrusions on both sides of the concave rubber ring expand outward and fit tightly against the inner wall of the pipe body. At the same time, the sealing ring installed in the annular groove fits tightly against the outer wall of the pipe body, which can further prevent leakage during fluid flow. The dustproof ring fits tightly against the outer wall of the pipe body, which can prevent dust from entering the gap between the sleeve and the pipe body, thereby improving the dustproof effect of the entire pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0017] Figure 4 It is a structural schematic diagram of the joint assembly of the utility model.

[0018] In the figure: 1. joint assembly; 2. retaining ring; 3. tube body; 4. sliding ring; 5. compression spring; 6. retaining bead; 7. trapezoidal groove; 10. dustproof ring; 11. sleeve; 12. limiting ring; 13. V-shaped gasket; 14. retaining groove; 15. sealing ring; 16. annular groove; 17. limiting groove; 18. concave rubber ring; 19. mounting groove. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0020] Example: See Figure 1 - Figure 4The utility model provides a technical solution: a compression type pipe fitting with a limiting function, comprising: a pipe body 3; a joint assembly 1, the joint assembly 1 is used for connection at the interface of the pipe body 3, the inner wall of the joint assembly 1 is plugged into the outer wall of the pipe body 3; a clamping ring 2, the clamping ring 2 is used to limit the clamping position of the clamping tool, the inner wall of the clamping ring 2 is fixedly connected to the outer wall of the joint assembly 1; the outer wall of the joint assembly 1 is slidably connected with a sliding ring 4, the outer wall of the sliding ring 4 is fixedly connected with a compression spring 5, and the outer wall of the joint assembly 1 is clamped with a clamping bead 6; the joint assembly 1 comprises a sleeve 11, the inner wall of the sleeve 11 is fixedly connected with a limiting ring 12, and the outer wall of the limiting ring 12 is clamped with a concave rubber through a limiting groove 17 The inner wall of the sleeve 11 is clamped with a sealing ring 15 through an annular groove 16, and the annular groove 16 is opened in the wall of the sleeve 11. The inner wall of the tube body 3 is clamped with the outer wall of the card bead 6 through the trapezoidal groove 7, and the trapezoidal groove 7 is opened in the wall of the tube body 3. The end of the compression spring 5 away from the sliding ring 4 is fixedly connected to the outer wall of the joint assembly 1. The outer wall of the sleeve 11 is slidably connected to the outer wall of the sliding ring 4, and the outer wall of the sliding ring 4 is in contact with the outer wall of the card bead 6. When in use, the joint assembly 1 can be used to connect the two tube bodies 3 together, and then the tube body 3 and the joint assembly 1 are clamped together on both sides of the clamp ring 2 using a special clamping tool;

[0021] When connecting, first push the sliding ring 4 toward the side close to the sleeve 11 to force the compression spring 5 to be compressed. At this time, the card bead 6 can move between the sliding ring 4 and the sleeve 11. Then insert the tube body 3 into the sleeve 11. When the card bead 6 is aligned with the opening of the trapezoidal groove 7, release the sliding ring 4. At this time, the compression spring 5 drives the sliding ring 4 to reset and squeezes the card bead 6 into the trapezoidal groove 7. In this way, the position of the tube body 3 and the sleeve 11 can be locked to prevent relative sliding and dislocation between the tube body 3 and the sleeve 11 during clamping.

[0022] The outer wall of the limiting ring 12 is clamped with a V-shaped gasket 13 through a clamping groove 14, and the clamping groove 14 is opened in the wall of the limiting ring 12, the V-shaped gasket 13 is arranged in a circular array along the central axis of the limiting ring 12, the outer wall of the V-shaped gasket 13 contacts the inner wall of the sleeve 11, the inner wall of the sleeve 11 is clamped with a dust ring 10 through an installation groove 19, and the installation groove 19 is opened in the wall of the sleeve 11, the outer wall of the dust ring 10 contacts the outer wall of the tube body 3, the outer wall of the tube body 3 is plugged with the inner wall of the sleeve 11, and the limiting ring The outer wall of the sleeve 11 is inserted into the inner wall of the tube body 3, the outer wall of the sealing ring 15 is in contact with the inner and outer walls of the tube body 3, and the outer wall of the tube body 3 is in contact with the outer wall of the concave rubber ring 18. During the installation of the tube body, the tube body 3 slides between the sleeve 11 and the limit ring 12, and squeezes the V-shaped gasket 13 in the card groove 14 during the sliding process, so that the V-shaped gasket 13 is deformed. At this time, the two sides of the V-shaped gasket 13 are in contact with the inner wall of the sleeve 11 and the outer wall of the limit ring 12 respectively, which can prevent leakage when the fluid flows;

[0023] During the flow of the fluid, the fluid impacts the concave rubber ring 18 installed in the limiting groove 17, causing the protrusions on both sides of the concave rubber ring 18 to expand outward and fit tightly against the inner wall of the tube body 3. At the same time, the sealing ring 15 installed in the annular groove 16 fits tightly against the outer wall of the tube body 3, which can further prevent leakage during the flow of the fluid. The dustproof ring 10 installed in the installation groove 19 fits tightly against the outer wall of the tube body 3, which can prevent dust from entering the gap between the sleeve 11 and the tube body 3, thereby improving the dustproof effect of the entire pipe fitting.

[0024] Working principle:

[0025] When in use, the two pipe bodies 3 can be connected together using the joint assembly 1, and then the pipe body 3 and the joint assembly 1 can be pressed together on both sides of the clamp ring 2 using a special pressing tool;

[0026] When connecting, first push the sliding ring 4 toward the side close to the sleeve 11, forcing the compression spring 5 to be compressed. At this time, the clamping bead 6 can move between the sliding ring 4 and the sleeve 11. Then insert the tube body 3 into the sleeve 11. When the clamping bead 6 is aligned with the opening of the trapezoidal groove 7, release the sliding ring 4. At this time, the compression spring 5 drives the sliding ring 4 to reset and squeezes the clamping bead 6 into the trapezoidal groove 7. In this way, the position of the tube body 3 and the sleeve 11 can be locked to prevent the tube body 3 and the sleeve 11 from sliding relative to each other and dislocating during clamping.

[0027] During this process, the tube body 3 slides between the sleeve 11 and the stop ring 12, and squeezes the V-shaped gasket 13 in the slot 14 during the sliding process, causing the V-shaped gasket 13 to deform. At this time, the two sides of the V-shaped gasket 13 are in contact with the inner wall of the sleeve 11 and the outer wall of the stop ring 12 respectively, which can prevent leakage when the fluid flows;

[0028] During the flow of the fluid, the fluid impacts the concave rubber ring 18 installed in the limiting groove 17, causing the protrusions on both sides of the concave rubber ring 18 to expand outward and fit tightly against the inner wall of the tube body 3. At the same time, the sealing ring 15 installed in the annular groove 16 fits tightly against the outer wall of the tube body 3, which can further prevent leakage during the flow of the fluid. The dustproof ring 10 installed in the installation groove 19 fits tightly against the outer wall of the tube body 3, which can prevent dust from entering the gap between the sleeve 11 and the tube body 3, thereby improving the dustproof effect of the entire pipe fitting.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A compression type pipe fitting with a limiting function, comprising: tube body(3); A joint assembly (1), the joint assembly (1) being used for connection at an interface of a pipe body (3), the inner wall of the joint assembly (1) being plugged into the outer wall of the pipe body (3); A clamping ring (2), the clamping ring (2) being used to limit the clamping position of the clamping tool, the inner wall of the clamping ring (2) being fixedly connected to the outer wall of the joint assembly (1); The invention is characterized in that a sliding ring (4) is slidably connected to the outer wall of the joint assembly (1), a compression spring (5) is fixedly connected to the outer wall of the sliding ring (4), and a clamping bead (6) is clamped to the outer wall of the joint assembly (1); The joint assembly (1) comprises a sleeve (11), the inner wall of the sleeve (11) is fixedly connected to a limit ring (12), the outer wall of the limit ring (12) is clamped with a concave rubber ring (18) via a limit groove (17), and the limit groove (17) is provided in the wall of the limit ring (12), the inner wall of the sleeve (11) is clamped with a sealing ring (15) via an annular groove (16), and the annular groove (16) is provided in the wall of the sleeve (11).

2. A compression type pipe fitting with a limiting function according to claim 1, characterized in that: The inner wall of the tube body (3) is clamped with the outer wall of the clamping bead (6) via a trapezoidal groove (7), and the trapezoidal groove (7) is formed in the wall of the tube body (3). One end of the compression spring (5) away from the sliding ring (4) is fixedly connected to the outer wall of the joint assembly (1).

3. The compression type pipe fitting with a limiting function according to claim 1, characterized in that: The outer wall of the sleeve (11) is slidably connected to the outer wall of the sliding ring (4), and the outer wall of the sliding ring (4) is in contact with the outer wall of the card bead (6).

4. The compression type pipe fitting with a position limiting function according to claim 1, characterized in that: The outer wall of the limiting ring (12) is clamped with a V-shaped gasket (13) via a clamping groove (14), and the clamping groove (14) is provided in the wall of the limiting ring (12). The V-shaped gaskets (13) are arranged in a circular array along the central axis of the limiting ring (12), and the outer wall of the V-shaped gasket (13) is in contact with the inner wall of the sleeve (11).

5. The compression type pipe fitting with a position limiting function according to claim 1, characterized in that: The inner wall of the sleeve (11) is clamped with a dust ring (10) via a mounting groove (19), and the mounting groove (19) is provided in the wall of the sleeve (11), and the outer wall of the dust ring (10) is in contact with the outer wall of the tube body (3).

6. The compression type pipe fitting with a position limiting function according to claim 1, characterized in that: The outer wall of the tube body (3) is plugged into the inner wall of the sleeve (11), the outer wall of the limiting ring (12) is plugged into the inner wall of the tube body (3), the outer wall of the sealing ring (15) is in contact with the inner and outer walls of the tube body (3), and the outer wall of the tube body (3) is in contact with the outer wall of the concave rubber ring (18).

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