Internal and external thread butt joint pipe

Abstract

The internal and external thread butt joint pipe comprises a pipe body, a first connector and a second connector, the first connector and the second connector are arranged at the two ends of the pipe body respectively, the inner wall of a cavity opening in the head end of the first connector is provided with a first threaded face used for threaded meshing connection, and the peripheral wall of the head end of the second connector is provided with a second threaded face used for threaded meshing connection. According to the scheme, the structural composition of the butt joint pipe is improved, the first connector at the end of the pipe body forms the first threaded face on the inner wall of the cavity opening to be in butt joint with a pipeline, a spray head and other mechanisms in an internal thread meshing mode, and the second threaded face is formed on the peripheral wall of the second connector at the end of the pipe body to be in butt joint with the pipeline, the spray head and other mechanisms in an external thread meshing mode. The butt joint pipe can be directly applied to connection of a pipeline, a spray head, a shower head and other mechanisms, and is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to an inner and outer thread butt-jointed pipe. Background Art

[0002] In the kitchen, bathroom and other environments, butt pipes are commonly used as adapters. Generally speaking, internal threaded joints are installed at both ends of the butt pipe body to connect the two pipes. Some butt pipes are used to connect pipes to showers or nozzles. Showers and nozzles are mostly internal threaded joints. Butt pipes need to be equipped with adapters on their internal threaded joints before they can be connected to showers, nozzles, etc. The addition of adapters makes it inconvenient to use. In addition, there is a problem of water leakage due to poor sealing after the butt pipe is connected, which needs to be improved. Utility Model Content

[0003] In order to solve at least one of the above technical defects, the utility model provides the following technical solutions:

[0004] The present application document discloses an internal and external thread butt-jointed tube, comprising a tube body, a first joint, and a second joint. The first joint and the second joint are respectively arranged at two ends of the tube body. The inner wall of the cavity opening at the first end of the first joint is provided with a threaded surface 1 for threaded engagement connection, and the peripheral wall at the first end of the second joint is provided with a threaded surface 2 for threaded engagement connection.

[0005] In this solution, the structural composition of the butt joint is improved. The first joint at the end of the tube body is formed with a threaded surface 1 on the inner wall of the cavity so as to be butted with the pipe, nozzle and other mechanisms in an internal threaded manner. The second joint at the end of the tube body is formed with a threaded surface 2 on the peripheral wall so as to be butted with the pipe, nozzle and other mechanisms in an external threaded manner. The butt joint can be directly used for connecting the pipe with the nozzle, shower head and other mechanisms, and is more convenient to use.

[0006] Furthermore, the first joint includes a connecting tube 1 and a connecting cap, the corresponding end of the tube body is connected to the tail end of the connecting tube 1, the connecting cap is sleeved on the connecting tube 1 and the two are slidably matched, a sealing gasket is provided at the end face of the head end of the connecting tube 1 in the connecting cap cavity, and a threaded surface 1 is provided at the inner peripheral wall of the cavity opening of the connecting cap; the second joint includes a connecting tube 2, the tail end of the connecting tube 2 is connected to the corresponding end of the tube body, and a threaded surface 2 is provided on the peripheral wall of the head end of the connecting tube 2, the connecting cap is sleeved on the connecting tube 1 to form a rotational fit, when the nozzle, shower head, etc. at the other end rotates, the pipeline can rotate synchronously, which is more convenient to use.

[0007] Furthermore, the shaft diameter of the head end of the connecting tube 2 is larger than the shaft diameter of the tail end, and a cylinder body is concentrically fixed to the peripheral wall near the head end of the connecting tube 2. The cylinder body extends to the head end of the connecting tube 2 and the inner diameter of the cylinder body is larger than the outer diameter of the head end of the connecting tube 2. A sealing assembly is arranged in the cavity of the cylinder body, and the sealing assembly is added to secondary seal the connection between the connecting tube 2 and the shower head, nozzle, etc.

[0008] Furthermore, the sealing assembly includes a mounting ring, an elastic member, and an elastic tube. The mounting ring is in the cylinder cavity and the two are slidably matched. An elastic member is arranged between the mounting ring and the bottom wall of the cylinder. A mounting groove is arranged at the end face of the mounting ring facing the first end of the second connecting tube. The elastic tube is sleeved on the second connecting tube and slidably matched. The end of the elastic tube is embedded in the mounting groove. The outer diameter of the elastic tube is larger than the outer diameter of the first end of the second connecting tube. Under the push of the elastic member, the elastic tube is sleeved at the first end of the second connecting tube. An elastic member is added to the cylinder body so that the mounting ring forms an elastic telescopic connection. When the shower head, the spray head, etc. are screwed to the first end of the second connecting tube, the elastic tube is pushed and abutted to move backward. Under the action of the elastic member, the end face of the elastic tube abuts against the end face of the shower head, the spray head, etc., which helps to improve the sealing performance.

[0009] Furthermore, it also includes a decorative ring, which is concentrically fixed at the tube mouth of the tube body. The decorative ring is formed of elastic material and the inner diameter of the decorative ring is larger than the outer diameter of the connecting tube 2. Adding the decorative ring helps to improve the aesthetics.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model improves the butt-jointed pipe structure, and the internal and external threaded surface configurations of the joints at both ends facilitate the butt-jointing of pipes, shower heads or spray heads, etc., and is convenient to use.

[0012] 2. The utility model adds a cylinder and a sealing component, which helps to improve the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the internal and external thread butt-jointed pipe in Example 1;

[0015] Figure 2 This is a schematic diagram of the structure of the internal and external thread butt-jointed pipe in Example 1;

[0016] Figure 3 This is a schematic diagram of the structure of the inner and outer thread butt joint pipe in Example 2;

[0017] Wherein, the accompanying drawings are marked as follows:

[0018] 1. Tube body; 2. First joint; 3. Second joint; 4. Cylinder body; 5. Mounting ring; 6. Elastic member; 7. Elastic cylinder; 8. Decorative ring; 21. Connecting cylinder 1; 22. Connecting cap; 23. Threaded surface 1; 24. Sealing gasket; 31. Connecting cylinder 2; 32. Threaded surface 2. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figure 1 , Figure 2 As shown, in this example, the internal and external thread butt joint pipe includes a pipe body 1, a first joint 2, and a second joint 3. The first joint 2 is installed at one end of the pipe body 1, and the second joint 3 is installed at the other end of the pipe body 1. The pipe body is deformable, such as a flexible pipe. The inner wall of the first end of the first joint 2 is formed with a threaded surface 23 for threaded engagement connection. The first joint 2 includes a connecting tube 21 and a connecting cap 22. The corresponding end of the pipe body 4 is fixed to the tail end of the connecting tube 21. Figure 1 , Figure 2 In the state shown, a groove is formed on the circumferential wall of the left part and near the head end of the connecting tube 1 21, and a through hole is formed at the center of the tail end of the connecting cap 22 to be sleeved on the groove of the connecting tube 1 21 and can slide along the axial direction, and the connecting cap can also rotate relative to the connecting tube 1. A threaded surface 1 23 is formed on the inner wall of the cavity opening of the head end of the connecting cap 22, and the threaded surface 1 23 is internally threaded, and is engaged with the threads of the water supply pipe and the like through the threaded surface 1 23. Preferably, a groove is formed on the end face of the head end of the connecting tube 1 21 in the cavity of the connecting cap 22, and a sealing gasket 24 is placed in the groove, which plays a role in improving the sealing when the water supply pipe and the like are connected.

[0022] The second joint 3 includes a second connecting tube 31, the tail end of the second connecting tube 31 is fixed to the corresponding end of the tube body 1, the head end of the second connecting tube 31 is larger than the axial diameter of the tail end and the peripheral wall of the head end is formed with a second thread surface 32, an external thread configuration, and the head end of the second connecting tube is fixed by thread engagement with a shower head, a spray head, etc. through the second thread surface.

[0023] Example 2

[0024] like Figure 3 As shown, compared with Example 1, in this example, a cylinder 4 is concentrically fixed on the peripheral wall near the head end of the connecting cylinder 2 31, the head end of the cylinder 4 extends to the head end of the connecting cylinder 2 31, the inner diameter of the cylinder 4 is larger than the outer diameter of the head end of the connecting cylinder 2 31, and a sealing assembly is arranged in the cavity of the cylinder.

[0025] Specifically, the sealing assembly includes a mounting ring 5, an elastic member 6, and an elastic tube 7. The mounting ring 5 is located in the cavity of the cylinder body 4 and is sleeved on the connecting tube 2 31. The mounting ring 5 is slidably matched with the connecting tube 2 31 and the cylinder body 4. The elastic member 6 is arranged between the mounting ring 5 and the bottom wall of the cavity of the cylinder body 4. The elastic member is such as a spring. A mounting groove is formed on the end face of the mounting ring 5 facing the head end of the connecting tube 2 31. The elastic tube 7 is sleeved on the connecting tube 2 and slidably matched. The end of the elastic tube 7 is embedded in the mounting groove for fixation.

[0026] The outer diameter of the elastic tube 7 is larger than the outer diameter of the head end of the second connecting tube 31, and the inner diameter of the elastic tube 7 is consistent with the outer diameter of the head end of the second connecting tube 31. Under the push of the elastic member, the elastic tube 7 is sleeved on the head end of the second connecting tube 31. When the shower head, the spray head, etc. are screwed to the head end of the second connecting tube, the elastic tube is abutted and pushed backward. Under the action of the elastic member, the end face of the elastic tube abuts against the end face of the shower head, the spray head, etc., to achieve secondary sealing and improve the sealing performance.

[0027] A decorative ring 8 can also be added, which is concentrically fixed at the mouth of the cylinder 4. The decorative ring is made of elastic material. The inner diameter of the decorative ring 8 is larger than the outer diameter of the connecting cylinder 2 31, which does not affect the installation of shower heads, nozzles, etc., and improves the aesthetics.

[0028] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A butt-jointed tube with internal and external threads, comprising a tube body, a first joint, and a second joint, wherein the first joint and the second joint are respectively arranged at both ends of the tube body, and characterized in that: The inner wall of the cavity opening at the head end of the first joint is provided with a threaded surface 1 for threaded engagement connection, and the peripheral wall at the head end of the second joint is provided with a threaded surface 2 for threaded engagement connection.

2. The inner and outer thread butt joint pipe according to claim 1, characterized in that: The first joint includes a connecting tube 1 and a connecting cap. The corresponding end of the tube body is connected to the tail end of the connecting tube 1. The connecting cap is sleeved on the connecting tube 1 and the two are slidably matched. A sealing gasket is arranged at the end face of the head end of the connecting tube 1 in the cavity of the connecting cap, and a threaded surface 1 is arranged at the inner peripheral wall of the cavity opening of the connecting cap. The second joint includes a connecting tube 2. The tail end of the connecting tube 2 is connected to the corresponding end of the tube body, and a threaded surface 2 is arranged on the peripheral wall of the head end of the connecting tube 2.

3. The inner and outer thread butt joint pipe according to claim 2, characterized in that: The shaft diameter of the first end of the connecting cylinder 2 is larger than the shaft diameter of the tail end. A cylinder body is concentrically fixed to the peripheral wall near the first end of the connecting cylinder 2. The cylinder body extends to the first end of the connecting cylinder 2 and the inner diameter of the cylinder body is larger than the outer diameter of the first end of the connecting cylinder 2. A sealing component is arranged in the cavity of the cylinder body.

4. The inner and outer thread butt joint pipe according to claim 3, characterized in that: The sealing assembly includes a mounting ring, an elastic member, and an elastic tube. The mounting ring is located in the cylinder cavity and the two are slidably matched. The elastic member is arranged between the mounting ring and the bottom wall of the cylinder. A mounting groove is arranged at the end face of the mounting ring facing the first end of the second connecting tube. The elastic tube is sleeved on the second connecting tube and is slidably matched. The end of the elastic tube is embedded in the mounting groove. The outer diameter of the elastic tube is larger than the outer diameter of the first end of the second connecting tube. The elastic tube is sleeved at the first end of the second connecting tube under the push of the elastic member.

5. The inner and outer thread butt joint pipe according to claim 4, characterized in that: It also includes a decorative ring, which is concentrically fixed at the tube mouth of the tube body. The decorative ring is formed of elastic material and the inner diameter of the decorative ring is larger than the outer diameter of the second connecting tube.

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