A sealing connection structure of a pipe end

Abstract

The utility model discloses a sealed connecting structure of pipe end, is used for the pipe connecting operation of first pipe and second pipe at the end position, and the female joint is integrally formed at the end of first pipe, the male joint is integrally formed at the end of second pipe, and the pipe connecting element is sleeved on the outside of second pipe, and the male joint is inserted and matched into the female joint through the threaded connection of pipe connecting element and female joint, the male joint and female joint form surface contact, and the male joint and female joint form sealing effect at the contact surface, the utility model adopts the structure design of male and female insertion and matching and taper surface sealing, so that pipe connecting place has high sealing property advantage, the utility model adopts the screw thread with tight connecting structure, and the pipe connecting operation is very simple and convenient, the utility model structure design is novel, can improve the market competitiveness of product after being applied to pipe product, and helps to open the market sale.

Description

Technical Field

[0001] This utility model relates to the field of pipeline structure technology, and more specifically, to a sealing connection structure for the end of a pipe fitting. Background Technology

[0002] Pipelines are devices made up of pipe fittings, pipe fitting connectors, and valves used to transport gases, liquids, or fluids containing solid particles. Pipelines have a wide range of applications, with water supply and drainage being among the main industries using them. Due to the overall length of pipe fittings, there are end connection issues between adjacent fittings. For pipe fitting manufacturers, the quality of the end connection structure design determines the market competitiveness of their products. Companies are committed to designing pipe fittings that are easy to connect and operate, and have reliable sealing. This case arises from this need. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a sealing connection structure for pipe fitting ends. This utility model adopts a male-female insertion and conical sealing structure design, which makes the pipe fitting connection have the advantage of high sealing performance. This utility model adopts a threaded tightening connection structure, making the pipe connection operation very simple and convenient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A sealing connection structure for pipe fitting ends is provided for connecting a first pipe fitting and a second pipe fitting at their ends. A female connector is integrally formed at the end of the first pipe fitting, and a male connector is integrally formed at the end of the second pipe fitting. A connecting element is fitted onto the outside of the second pipe fitting. The male connector is inserted into the female connector through a threaded connection between the connecting element and the female connector. The male connector and the female connector form a surface contact, and a sealing effect is achieved at the contact surface.

[0006] Furthermore, the female connector has an inner conical hole, and the male connector has an outer conical surface, which is adapted to be inserted into the inner conical hole.

[0007] Furthermore, at least two sealing grooves are formed on the inner conical hole wall, and a sealing ring is installed in each sealing groove.

[0008] Furthermore, the connecting element includes a sleeve disc, which is fitted onto the outside of the second pipe fitting. The inner hole of the sleeve disc is adapted to the outer diameter of the second pipe fitting. The large end of the male connector protrudes from the outer diameter of the second pipe fitting to form a ring seat. The sleeve disc is installed by its side wall abutting against the seat. A connecting ring is connected to the side wall of the sleeve disc. The outer wall of the female connector of the first pipe fitting is formed with external threads, and the inner wall of the connecting ring is formed with internal threads. The connecting ring is threadedly connected to the female connector by the engagement of the internal and external threads.

[0009] Furthermore, the outer edge of the sleeve disc is provided with several notches and grooves.

[0010] Furthermore, the connecting pipe element is cut and disassembled into two half-piece seats of the same size. The two half-piece seats are respectively fitted onto the outside of the second pipe fitting and spliced ​​together to form a complete connecting pipe element.

[0011] Furthermore, the side wall of the sleeve disc has two symmetrically arranged mounting grooves. Each mounting groove is divided into two parts located in two half-plate seats. A mating block is fitted into the mounting groove. A set of bolts is threaded onto the mating block. The set of bolts includes two bolts, which are used to thread-connect the two half-plate seats respectively.

[0012] The beneficial effects of this utility model are:

[0013] This utility model adopts a male-female plug-in and conical sealing structure design, which gives the pipe fitting connection a high sealing performance. This utility model adopts a threaded tightening connection structure, making the pipe connection operation very simple and convenient. The novel structural design of this utility model can enhance the market competitiveness of pipe fitting products and help to open up market sales channels. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of a sealing connection structure at the end of a pipe fitting in this embodiment;

[0015] Figure 2 This is a three-dimensional structural diagram of the connecting pipe element in this embodiment;

[0016] Figure 3 This is a front view of the connecting pipe element in the mounting groove position in this embodiment.

[0017] Reference numerals: First pipe fitting 1, Second pipe fitting 2, Female connector 3, Inner conical hole 31, Sealing groove 32, Sealing ring 33, External thread 34, Male connector 4, External conical surface 41, Support 42, Connecting pipe element 5, Pipe sleeve disc 51, Mounting block groove 511, Connecting ring 52, Internal thread 521, Notch groove 53, Half plate seat 54, Butt joint block 55, Bolt 56. Detailed Implementation

[0018] 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.

[0019] Designate the two pipe fittings that need to be connected as pipe fitting 1 and pipe fitting 2, such as... Figures 1-3 This invention illustrates a sealing connection structure for pipe fitting ends, used for connecting pipes at the ends of a first pipe fitting 1 and a second pipe fitting 2. The first pipe fitting 1 has a female connector 3 integrally formed at its end, and the second pipe fitting 2 has a male connector 4 integrally formed at its end. The pipe fitting materials used by the manufacturer are PVC, PE, etc., allowing for direct fabrication of either the male connector 4 or the female connector 3 at the pipe fitting ends. Typically, one end of a single pipe fitting is designed as the male connector 4, and the other end as the female connector 3. A connecting element 5 is fitted onto the outer side of the second pipe fitting 2. The connecting element 5 is threadedly connected to the female connector 3. Tightening the connecting element 5 pulls the male connector 4, causing it to insert into the female connector 3. The male connector 4 and female connector 3 form surface contact, creating a sealing effect at the contact surface. Figure 1 As shown, the female connector 3 has an inner conical hole 31, and the male connector 4 has an outer conical surface 41. The outer conical surface 41 is adapted to be inserted into the inner conical hole 31, and the male connector 4 and the female connector 3 form a conical surface connection structure. In this utility model, at least two sealing grooves 32 are provided on the wall of the inner conical hole 31, and a sealing ring 33 is installed in each sealing groove 32. After the thread is tightened to the point that the outer conical surface 41 fits with the inner conical hole 31, the sealing ring 33 is squeezed to form two seals. First, the conical surface fits together to form a sealing effect, and then there is a further sealing effect from the two sealing rings 33. Thus, the structure of this utility model has an excellent sealing effect.

[0020] like Figure 1 As shown, the connecting element 5 includes a sleeve disc 51, which is fitted onto the outside of the second pipe fitting 2. The inner diameter of the sleeve disc 51 is adapted to the outer diameter of the second pipe fitting 2. The large end of the male connector 4 protrudes beyond the outer diameter of the second pipe fitting 2 to form a ring of support 42. The outer diameter of the support 42 is larger than the inner diameter of the sleeve disc 51. Therefore, the sleeve disc 51 is installed by its sidewall abutting against the support 42. A connecting ring 52 is integrally connected to the sidewall of the sleeve disc 51. The outer wall of the female connector 3 of the first pipe fitting 1 is formed with an external thread 34, and the inner wall of the connecting ring 52 is formed with an internal thread 521. The engagement of the external thread 34 with the connecting ring 52 allows it to be threaded onto the female connector 3. Tightening the sleeve disc 51 allows the connecting ring 52 to be unthreaded and connected to the female connector 3. During this process, the sleeve disc 51 pushes the seat 42 to allow the male connector 4 to be inserted into the female connector 3. When the sleeve disc 51 cannot be rotated, it indicates that the outer conical surface 41 and the inner conical hole 31 have come into contact, forming a reliable seal. Before threaded connection, threadlocker can be applied to the external thread 34. After the threadlocker hardens, the connecting ring 52 and the female connector 3 are less likely to separate, maintaining a seal at the connection point. Figure 2As shown, several notches and grooves 53 are provided on the outer edge of the sleeve plate 51. The notches and grooves 53 are designed to facilitate the turning of the sleeve plate 51 by hand or with tools. In this utility model, the connection between two pipe fittings can be achieved simply by turning the sleeve plate 51. The connection operation is very convenient. Before connecting the pipe fittings, remember to first insert the sealing ring 33 into the sealing groove 32.

[0021] Since both ends of the pipe fitting are male connector 4 or female connector 3, and both male connector 4 or female connector 3 protrude from the outer diameter of the pipe fitting, the installation of the connecting element 5 becomes a problem. Therefore, as follows: Figure 2 and Figure 3 As shown, this utility model designs and disassembles the connecting pipe element 5 into two identical half-seats 54. Each half-seat 54 includes a half-tube sleeve disc 51 and a half-connecting ring 52. The two half-seats 54 are respectively fitted onto the outside of the second pipe fitting 2 in an upper and lower corresponding manner and assembled to form a complete connecting pipe element 5. The complete connecting pipe element 5 also needs to be connected as a whole. For this purpose, this utility model designs two symmetrically arranged mounting grooves 511 on the side wall of the tube sleeve disc 51. Both mounting grooves 511 are divided into two parts located in the two half-seats 54. After the two half-seats 54 are assembled, the two... The mounting groove 511 is also fully assembled. A mating block 55 is fitted into the mounting groove 511. A set of bolts 56 is threaded on the mating block 55. The bolts 56 are screwed into the pipe sleeve plate 51 to connect the mating block 55 and the pipe sleeve plate 51. The set of bolts 56 includes two bolts 56. The two bolts 56 are used to thread the two half-plate seats 54 respectively. Through the connection of the two mating blocks 55 and the two sets of bolts 56, the two half-plate seats 54 can be assembled into a complete pipe fitting element 5. Before the pipe fitting operation, the pipe fitting element 5 needs to be assembled on the outside of the male connector 4 of the second pipe fitting 2.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sealing connection structure for pipe fitting ends, used for connecting a first pipe fitting (1) and a second pipe fitting (2) at the end position, characterized in that, A female connector (3) is integrally formed at the end of the first pipe fitting (1), and a male connector (4) is integrally formed at the end of the second pipe fitting (2). A connecting pipe element (5) is fitted on the outside of the second pipe fitting (2). The male connector (4) is inserted into the female connector (3) through the threaded connection between the connecting pipe element (5) and the female connector (3). The male connector (4) and the female connector (3) form a surface contact, and the male connector (4) and the female connector (3) form a sealing effect at the contact surface.

2. The sealing connection structure for a pipe fitting end according to claim 1, characterized in that, The female connector (3) has an inner conical hole (31), and the male connector (4) has an outer conical surface (41), which is adapted to be inserted into the inner conical hole (31).

3. The sealing connection structure for a pipe fitting end according to claim 2, characterized in that, At least two sealing grooves (32) are provided on the wall of the inner conical hole (31), and a sealing ring (33) is installed in each sealing groove (32).

4. The sealing connection structure for a pipe fitting end according to claim 1, characterized in that, The connecting element (5) includes a sleeve disc (51), which is fitted onto the outside of the second pipe fitting (2). The inner hole of the sleeve disc (51) is adapted to the outer diameter of the second pipe fitting (2). The large end of the male connector (4) protrudes from the outer diameter of the second pipe fitting (2) to form a ring seat (42). The sleeve disc (51) is installed by its side wall abutting against the seat (42). A connecting ring (52) is connected to the side wall of the sleeve disc (51). The outer wall of the female connector (3) of the first pipe fitting (1) is made with an external thread (34). The inner wall of the connecting ring (52) is made with an internal thread (521). The connecting ring (52) is threadedly connected to the female connector (3) by the meshing of the internal thread (521) and the external thread (34).

5. The sealing connection structure for a pipe fitting end according to claim 4, characterized in that, The outer edge of the sleeve plate (51) is provided with several notches (53).

6. The sealing connection structure for a pipe fitting end according to claim 4, characterized in that, The connecting pipe element (5) is cut and disassembled into two half-piece seats (54) of the same size. The two half-piece seats (54) are respectively fitted onto the outside of the second pipe (2) and assembled to form a complete connecting pipe element (5).

7. The sealing connection structure for a pipe fitting end according to claim 6, characterized in that, The side wall of the sleeve plate (51) has two symmetrically arranged mounting grooves (511). The two mounting grooves (511) are divided into two parts located in two half seats (54). A mating block (55) is fitted into the mounting groove (511). A set of bolts (56) is threaded on the mating block (55). The set of bolts (56) includes two bolts (56). The two bolts (56) are used to thread the two half seats (54) respectively.

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