Pipe fitting connecting piece and pipe fitting

Abstract

The utility model discloses a pipe fitting connecting piece and a pipe fitting, and belongs to the technical field of pipe fitting connection, the pipe fitting connecting piece comprises a connecting pipe body, a clamping ring and a nut, and the tail end of the connecting pipe body is provided with an external thread head in threaded connection with the nut; the nut and the clamping ring are both arranged on the pipe fitting in a sleeving mode, and the clamping ring is located on the inner side of the nut. A plurality of grooves are annularly and evenly distributed in the tail end of the pipe fitting in the circumferential direction, a plurality of protruding blocks are annularly and evenly distributed on the inner side of the clamping ring in the circumferential direction, and the protruding blocks are correspondingly arranged in the grooves in a matched mode. The pipe fitting is sleeved with the clamping ring and the nut, and the nut is in threaded connection with the external thread head; meanwhile, a plurality of grooves are annularly and evenly distributed in the tail end of the pipe fitting in the circumferential direction, and protruding blocks matched with the grooves are arranged on the inner side of the clamping ring; stable and convenient connection between the connecting pipe body and the pipe fitting is realized; when the nut is in threaded connection with the external thread head, the sealing ring is installed in the circular truncated cone ring groove in an interference fit mode so as to guarantee good sealing performance of connection between the connecting pipe body and the pipe fitting.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting connection technology, specifically to a pipe fitting connector and a pipe fitting. Background Technology

[0002] In existing technologies, pipe connections are mostly achieved through tee joints, L-joints, and straight-through joints connected to nuts and threads to connect two pipes. While these methods can connect two pipes, they still suffer from unstable connections and are prone to breakage under tensile force. To address these issues, this utility model provides a pipe connector and a pipe fitting. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a pipe fitting connector and a pipe fitting, which uses a retaining ring and a nut to be fitted onto the outside of the pipe fitting, with the nut threaded to the external thread head; at the same time, the end of the pipe fitting has several grooves evenly distributed around its circumference, and the inner side of the retaining ring has a protrusion that matches the grooves; thus achieving a stable and convenient connection between the connecting pipe body and the pipe fitting; and solving the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a pipe fitting connector, including: a connecting pipe body, a retaining ring, and a nut. The retaining ring is a notched circular ring to fit onto the pipe fitting. The end of the connecting pipe body is provided with an external thread head that is threaded to the nut. The size of the external thread head is larger than the size of the pipe fitting so that the pipe fitting fits inside the external thread head. The nut and the retaining ring are both fitted onto the pipe fitting, with the retaining ring located inside the nut. The end of the pipe fitting is provided with several grooves evenly distributed around its circumference, and the inner side of the retaining ring is provided with several protrusions evenly distributed around its circumference, with the protrusions corresponding to the grooves. The retaining ring and the nut are fitted onto the outside of the pipe fitting, and the nut is threaded to the external thread head. At the same time, the end of the pipe fitting is provided with several grooves evenly distributed around its circumference, and the inner side of the retaining ring is provided with protrusions that match the grooves. This achieves a stable and convenient connection between the connecting pipe body and the pipe fitting.

[0005] Preferably, it also includes a sealing ring, which is sleeved on the outside of the pipe fitting; when the nut is threadedly connected to the external thread head, the sealing ring seals the connection between the external thread head and the pipe fitting for a good seal.

[0006] Preferably, the end of the nut is integrally provided with a limiting ring, which is sleeved on the outside of the pipe fitting, and the inner side of the limiting ring is provided with an annular groove; when the nut is threadedly connected to the external thread head, the retaining ring is matched and installed in the annular groove; the limiting ring stabilizes the retaining ring, ensuring a stable connection between the pipe body and the pipe fitting.

[0007] Preferably, the inner side of the end of the external thread head is provided with a frustum annular groove, and the sealing ring is frustum annular; when the nut is threadedly connected to the external thread head, the sealing ring is interference-fitted into the frustum annular groove to ensure good sealing performance between the connecting pipe body and the fitting.

[0008] Preferably, the connecting pipe body is a cross-shaped four-way pipe, a T-shaped pipe, an L-shaped pipe, or an I-shaped pipe to adapt to different connection scenarios and needs.

[0009] A type of pipe fitting, wherein two pipe fittings are connected by a type of pipe fitting connector, wherein the end of the pipe fitting is provided with a plurality of grooves evenly distributed in a circumferential ring, and the grooves are formed by the outer side of the pipe fitting being recessed inward.

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

[0011] 1. This utility model uses a retaining ring and a nut to be fitted on the outside of the pipe fitting, with the nut threaded to the external thread head; at the same time, several grooves are evenly distributed around the end of the pipe fitting, and the inner side of the retaining ring is provided with a protrusion that matches the groove; thus achieving a stable and convenient connection between the pipe body and the pipe fitting.

[0012] 2. When the nut is threadedly connected to the external thread head, the sealing ring is interference-fitted into the frustum annular groove to ensure good sealing between the connecting pipe body and the fitting. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of a pipe fitting connector provided for an embodiment of the present utility model.

[0015] Figure 2 for Figure 1 Vertical sectional view.

[0016] Figure 3 for Figure 2 A magnified view of A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the pipe fitting with retaining rings and sealing rings installed at both ends.

[0018] Figure 5 This is a schematic diagram of the pipe fitting in this utility model.

[0019] Figure 6 for Figure 5 A schematic diagram of the structure of the retaining ring and the sealing ring.

[0020] Figure 7 This is a schematic diagram of the structure of the T-shaped tubular, L-shaped tubular, and I-shaped tubular connecting pipe body in this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1-connecting pipe body, 11-external thread head, 111-frustum annular groove, 2-clamping ring, 21-protrusion, 3-nut, 31-limiting ring, 311-annular groove, 4-pipe fitting, 41-groove, 5-sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figures 1 to 7 As shown, this embodiment provides a pipe fitting connector, including: a connecting pipe body 1, a retaining ring 2, and a nut 3. The retaining ring 2 is a notched circular ring to fit onto a pipe fitting 4. The end of the connecting pipe body 1 is provided with an external thread head 11 that is threaded to the nut 3. The size of the external thread head 11 is larger than the size of the pipe fitting 4 so that the pipe fitting 4 fits inside the external thread head 11. Both the nut 3 and the retaining ring 2 are fitted onto the pipe fitting 4, with the retaining ring 2 located inside the nut 3. The end of the pipe fitting 4 is provided with a plurality of grooves 41 evenly distributed in a circumferential direction, and the inner side of the retaining ring 2 is provided with a plurality of protrusions 21 evenly distributed in a circumferential direction, with the protrusions 21 corresponding to the grooves 41. By fitting the retaining ring 2 and the nut 3 onto the outside of the pipe fitting 4, the nut 3 is threaded to the external thread head 11; at the same time, the end of the pipe fitting 4 is provided with a plurality of grooves 41 evenly distributed in a circumferential direction, and the inner side of the retaining ring 2 is provided with protrusions 21 that match the grooves 41; thus, a stable and convenient connection between the connecting pipe body 1 and the pipe fitting 4 is achieved.

[0025] Furthermore, it also includes a sealing ring 5, which is fitted onto the outside of the pipe fitting 4. When the nut 3 is threadedly connected to the external threaded head 11, the sealing ring 5 seals the connection between the external threaded head 11 and the pipe fitting 4 for a good seal. Even further, the inner side of the end of the external threaded head 11 is provided with a frustum-shaped annular groove 111, and the sealing ring 5 is frustum-shaped. When the nut 3 is threadedly connected to the external threaded head 11, the sealing ring 5 is interference-fitted into the frustum-shaped annular groove 111 to ensure a good seal between the connecting pipe body 1 and the pipe fitting 4.

[0026] Furthermore, a limiting ring 31 is integrally provided at the end of the nut 3. The limiting ring 31 is sleeved on the outside of the pipe fitting 4, and an annular groove 311 is provided on the inner side of the limiting ring 31. When the nut 3 is threadedly connected to the external thread head 11, the retaining ring 2 is matched and installed in the annular groove 311. The retaining ring 2 is stably limited by the limiting ring 31, ensuring a stable connection between the pipe body 1 and the pipe fitting 4.

[0027] Furthermore, the connecting tube body 1 can be in the shape of a cross-shaped four-way tube, a T-shaped tube, an L-shaped tube, or an I-shaped tube to adapt to different connection scenarios and needs.

[0028] A type of pipe fitting, wherein two pipe fittings 4 are connected by the aforementioned pipe fitting connector, and the end of the pipe fitting 4 is provided with a plurality of grooves 41 evenly distributed in a circumferential ring. The grooves 41 are formed by the outer side of the pipe fitting 4 being recessed inward. In actual use, the pipe fitting 4 can be pressed during connection or prefabricated during the production stage.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pipe fitting connector, characterized in that, include: The connecting pipe body (1), the retaining ring (2), and the nut (3) are provided at the end of the connecting pipe body (1) and the nut (3) are provided with an external thread head (11) that is threaded to the nut (3); The nut (3) and the retaining ring (2) are both sleeved on the pipe fitting (4), and the retaining ring (2) is located inside the nut (3); The end of the pipe fitting (4) is provided with a plurality of grooves (41) evenly distributed in a circumferential direction, and the inner side of the retaining ring (2) is provided with a plurality of protrusions (21) evenly distributed in a circumferential direction, and the protrusions (21) are matched in the grooves (41).

2. A pipe fitting connector as described in claim 1, characterized in that, It also includes a sealing ring (5), which is sleeved on the outside of the pipe fitting (4); when the nut (3) is threadedly connected to the external thread head (11), the sealing ring (5) seals the connection between the external thread head (11) and the pipe fitting (4).

3. A pipe fitting connector as described in claim 2, characterized in that, The nut (3) has an integrally provided limiting ring (31) at its end. The limiting ring (31) is sleeved on the outside of the pipe fitting (4). The inner side of the limiting ring (31) has an annular groove (311). When the nut (3) is threadedly connected to the external thread head (11), the retaining ring (2) is matched and installed in the annular groove (311).

4. A pipe fitting connector as described in claim 3, characterized in that, The inner side of the end of the external thread head (11) is provided with a frustum annular groove (111), and the sealing ring (5) is frustum annular; when the nut (3) is threadedly connected to the external thread head (11), the sealing ring (5) is interference-fitted into the frustum annular groove (111).

5. A pipe fitting connector as described in claim 4, characterized in that, The connecting pipe body (1) is a cross-shaped four-way pipe, a T-shaped pipe, an L-shaped pipe, or an I-shaped pipe.

6. A pipe fitting, wherein two pipe fittings (4) are connected by a pipe fitting connector as described in any one of claims 1-5, characterized in that, The end of the pipe fitting (4) is provided with several grooves (41) evenly distributed in a circumferential ring. The grooves (41) are formed by the inward indentation of the outer side of the pipe fitting (4).

Images