Rotary self-locking type pipe joint assembly and application method thereof

Abstract

The invention discloses a rotary self-locking type pipe joint assembly which comprises a pipe joint body, a clamping cap installed on the pipe joint body, a lock cover and a clamping jaw with one end inserted into the lock cover. The pipe joint is characterized in that the pipe joint body or the clamping cap or the lock cover is provided with a guide triggering part which extends and protrudes outwards; a conical through hole is formed in the lock cover, the clamping jaw is inserted into the conical through hole, one end of the clamping jaw makes contact with the guide triggering part based on rotation of the lock cover, the clamping jaw is lifted outwards along the lock cover along with increase of the height of the guide triggering part, the conical through hole makes close contact with the clamping jaw, and the clamping jaw is extruded to deform so as to clamp a pipe fitting. The clamping jaw is inserted into the conical through hole, one end of the clamping jaw makes contact with the guide triggering part based on rotation of the lock cover, the clamping jaw is lifted outwards along the lock cover along with increase of the height of the guide triggering part, the conical through hole makes close contact with the clamping jaw, the clamping jaw is extruded to deform to clamp a pipe fitting, and therefore the convenience of locking the pipe fitting is improved; and the production cost is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water purifier pipe joint assemblies, and in particular to a rotary self-locking pipe joint assembly and an application method thereof. Background Art

[0002] The main function of the pipe joint assembly is to connect two pipes or pipes to equipment, and ensure the firmness and sealing of the connection through its sealing design, which helps to prevent leakage and ensure the stable transmission of fluid. In the existing technology, when locking the pipe body, it is necessary to install a locking plate between the pipe joint body and the claw to lock the pipe body. The locking plate is used to prevent the claw or pipe fitting from escaping from the pipe joint body after the water pressure is too high. This method requires the pipe body to be locked by external accessories, and the pipe body cannot be locked by the structure of the pipe joint body itself. At the same time, the use of external accessories increases the cost of use and reduces the installation efficiency. To this end, a rotating self-locking pipe joint assembly and an application method thereof are proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to provide a rotary self-locking pipe joint assembly and an application method thereof.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotary self-locking pipe joint assembly, comprising a pipe joint body, a clamping cap installed on the pipe joint body, a locking cover and a claw with one end inserted in the locking cover; the characteristic is that the pipe joint body, the clamping cap or the locking cover is provided with a guide trigger portion extending and protruding outward; the locking cover is provided with a tapered through hole, the claw is inserted into the tapered through hole, and based on the rotation of the locking cover, one end of the claw contacts the guide trigger portion and as the height of the guide trigger portion increases, the claw is lifted outward along the locking cover, so that the tapered through hole is in close contact with the claw, and the claw is squeezed and deformed to clamp the pipe fitting.

[0005] Preferably, the guide triggering portion on the pipe joint body, the clamping cap or the locking cover comprises a guide portion and a supporting portion.

[0006] Preferably, the pipe joint body, the clamping cap or the locking cover is further provided with a limiting portion for limiting the rotation of the clamping claw.

[0007] Preferably, the locking cover is a press cover or a press-in gear ring.

[0008] Preferably, the clamping claw comprises an operating portion, a deformation portion for clamping the pipe fitting, and a positioning portion for rotationally positioning the operating portion.

[0009] Preferably, sealing rings and limit platforms for clamping and limiting the position of the clamping cap are installed on both ends of the pipe joint body.

[0010] Preferably, the clamping cap is provided with a clamping boss adapted to the limiting platform.

[0011] Preferably, the card cap is also provided with a buffer groove to prevent the card cap from being damaged when being engaged.

[0012] The invention discloses an application method of a rotary self-locking pipe joint assembly.

[0013] The beneficial effects of the present invention are as follows: the claw is inserted into the tapered through hole, and based on the rotation of the lock cover, one end of the claw contacts the guide trigger part and as the height of the guide trigger part increases, the claw is lifted outward along the lock cover, so that the tapered through hole is in close contact with the claw, and the claw is squeezed and deformed to clamp the pipe fitting, thereby improving the convenience of locking the pipe fitting and also reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the present invention.

[0015] Figure 2 It is a cross-sectional view of the present invention.

[0016] Figure 3 It is a partial structural schematic diagram of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the lock cover of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the clamping claw of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of embodiment 2 of the present invention.

[0020] Figure 7 It is a cross-sectional view of Example 2 of the present invention.

[0021] Figure 8 It is a schematic structural diagram of the pipe joint body in Example 2 of the present invention.

[0022] Fig. 9 It is a schematic diagram of the structure of the lock cover in Example 2 of the present invention.

[0023] Fig.10 It is a structural diagram of embodiment 3 of the present invention.

[0024] Fig.11 It is a structural schematic diagram of the lock cover in Example 3 of the present invention.

[0025] Legend: 1. Pipe joint body; 101. Limiting platform; 102. Sealing ring; 2. Clamping cap; 201. Guide trigger part; 202. Limiting part; 203. Clamping boss; 205. Guide part; 206. Support part; 3. Locking cover; 301. Conical through hole; 4. Clamping claw; 401. Operating part; 402. Deformation part; 403. Positioning part. DETAILED DESCRIPTION

[0026] Hereinafter, we will further explain a rotary self-locking pipe joint assembly and an application method thereof according to the present invention with reference to the accompanying drawings.

[0027] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly. Example 1

[0028] See attached Figure 1-5 As shown, in this embodiment, a rotary self-locking pipe joint assembly comprises a pipe joint body 1, a clamping cap 2 mounted on the pipe joint body 1, a locking cover 3 and a claw 4 with one end inserted into the locking cover 3; it is characterized in that the clamping cap 2 is provided with a guide trigger portion 201 extending outward and protruding; the locking cover 3 is provided with a tapered through hole 301, the claw 4 is inserted into the tapered through hole 301, and based on the rotation of the locking cover 3, one end of the claw 4 contacts with the guide trigger portion 201 and as the height of the guide trigger portion 201 increases, the claw 4 is lifted outward along the locking cover 3, so that the tapered through hole 301 is in close contact with the claw 4, and the claw 4 is squeezed and deformed to clamp the pipe fitting; the locking cover 3 is a pressure cover; the guide trigger 201 on the clamping cap 2 comprises a guide portion 205 and a support portion 206; the clamping cap 2 is also provided with a limiting portion for limiting the rotation of the claw 202; the clamping claw 4 includes an operating part 401, a deformation part 402 for clamping the pipe fitting, and a positioning part 403 for rotating and positioning the operating part 401; by rotating the operating part 401 of the clamping claw 4, the operating part 401 drives the positioning part 403 and the deformation part 402 to rotate along the locking cover 3, and the operating part 401 of the clamping claw 4 is lifted outward as the height of the guide part 205 increases so that the deformation part 402 contacts with the tapered through hole 301 on the locking cover 3, and the tapered through hole 301 squeezes the deformation part 402 of the clamping claw 4 to deform it to clamp the pipe fitting, until the operating part 401 of the clamping claw 4 is rotated to the supporting part 206, the positioning part 403 contacts with the limiting part 202, and is limited by the limiting part 202, and then the pipe fitting is locked, thereby improving the convenience of locking the pipe body and reducing the production cost.

[0029] See attached Figure 1-2As shown, sealing rings 102 and limiting platforms 101 for limiting the position of the clamping cap 2 are also installed on both ends of the pipe joint body 1; the clamping cap 2 is provided with a clamping boss 203 adapted to the limiting platform 101; by adapting the clamping boss 203 on the clamping cap 2 to the limiting platform 101 on the pipe joint body 1, the clamping cap 2 is limited by the limiting platform 101, and the clamping cap 2 is installed on the pipe joint body 1, thereby facilitating the installation of the clamping cap 2.

[0030] In the process of using the present invention, firstly, one end of the pipe fitting is installed into the claw 4 of the pipe joint body 1, and then the operating part 401 of the claw 4 is rotated, so that the operating part 401 drives the positioning part 403 and the deformation part 402 to rotate based on the lock cover 3, and the operating part 401 of the claw 4 is lifted outward as the height of the guide part 205 increases so that the deformation part 402 contacts the tapered through hole 301 on the lock cover 3, and the tapered through hole 301 squeezes the deformation part 402 of the claw 4 to deform it until the operating part 401 of the claw 4 is rotated to the support part 206, and the positioning part 403 and the limit part 202 are in contact with each other. The pipe is in contact with each other and is limited by the limiting part 202. The deformation part 402 clamps the pipe fitting and then locks the pipe fitting, and the claw 4 stops rotating. When the pipe fitting needs to be removed, the operating part 401 of the claw 4 is rotated in the opposite direction to rotate the operating part 401 of the claw 4 from the supporting part 206 to the guiding part 205, and as the height of the guiding part 205 decreases, the operating part 401 of the claw 4 moves downward to disengage the deformation part 402 of the claw 4 from the tapered hole 301 on the locking cover 3, and the deformation part 402 is reset by its own elasticity, thereby loosening the pipe fitting, and the pipe fitting can be directly pulled out. Example 2

[0031] See attached Figure 6-9 As shown, the difference between this embodiment and embodiment 1 is that in this embodiment, the guide trigger member 201 and the limit portion 202 are arranged on the pipe joint body 1, and the lock cover 3 is a press-in gear ring. Example 3

[0032] See attached Figure 10-11 As shown, the difference between this embodiment and embodiments 1 and 2 is that in this embodiment, the guide trigger member 201 and the limiting portion 202 are arranged on the lock cover 3.

[0033] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A rotating self-locking pipe joint assembly, comprising a pipe joint body (1), a clamping cap (2) mounted on the pipe joint body (1), a locking cover (3), and a clamping claw (4) with one end inserted into the locking cover (3); wherein: The pipe joint body (1) or the clamping cap (2) or the locking cover (3) is provided with a guide trigger portion (201) extending outward and protruding; the locking cover (3) is provided with a tapered through hole (301), the clamping claw (4) is inserted into the tapered through hole (301), and based on the rotation of the locking cover (3), one end of the clamping claw (4) contacts the guide trigger portion (201) and as the height of the guide trigger portion (201) increases, the clamping claw (4) is lifted outward along the locking cover (3), so that the tapered through hole (301) is in close contact with the clamping claw (4), and the clamping claw (4) is squeezed and deformed to clamp the pipe fitting.

2. A rotary self-locking pipe joint assembly according to claim 1, characterized in that: The guide trigger portion (201) on the pipe joint body (1) or the clamping cap (2) or the locking cover (3) comprises a guide portion (205) and a support portion (206).

3. A rotary self-locking pipe joint assembly according to claim 2, characterized in that: The pipe joint body (1) or the clamping cap (2) or the locking cover (3) is also provided with a limiting portion (202) for limiting the rotation of the clamping claw (4).

4. A rotary self-locking pipe joint assembly according to claim 3, characterized in that: The locking cover (3) is a press cover or a press-in gear ring.

5. The rotary self-locking pipe joint assembly according to claim 3, characterized in that: The clamping claw (4) comprises an operating portion (401), a deformation portion (402) for clamping the pipe fitting, and a positioning portion (403) for rotationally positioning the operating portion (401).

6. A rotary self-locking pipe joint assembly according to claim 1, characterized in that: Sealing rings (102) and a limiting platform (101) for limiting the position of the clamping cap (2) are also installed on both ends of the pipe joint body (1).

7. A rotary self-locking pipe joint assembly according to claim 6, characterized in that: The clamping cap (2) is provided with a clamping boss (203) adapted to the limiting platform (101).

8. An application method of the rotary self-locking pipe joint assembly according to any one of claims 1 to 7.

Images