PVC drainage pipeline connecting piece

Abstract

The utility model relates to a PVC drainage pipeline connecting piece which comprises a main body used for connecting two pipelines, the two ends of the main body are communicated, annular protruding blocks are arranged on the outer walls, close to the two ends, of the main body, inclined faces are arranged on the two sides of each annular protruding block, and clamping assemblies used for clamping pipe fittings are arranged at the two ends of the main body. The clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece is arranged on the side, away from the middle of the main body, of the annular protruding block, a gap allowing a pipeline to penetrate through is formed between the first clamping piece and the main body, and the second clamping piece is arranged on the side, close to the middle of the main body, of the annular protruding block. The second clamping piece is connected to the main body in a sliding mode in the axis direction of the main body, the first clamping piece and the second clamping piece enable the pipeline to abut against the two inclined faces of the annular protruding block, external threads are arranged on the outer end face of the second clamping piece, and internal threads used for being matched with the second clamping piece are arranged on the first clamping piece. The pipe fitting connecting device has the more stable connecting effect on pipe fittings.

Description

Technical Field

[0001] The present application relates to the technical field of drainage pipe connection, and in particular to a PVC drainage pipe connector. Background Art

[0002] The main component of the pipe fittings is polyvinyl chloride, which is a popular and widely used synthetic material in the world today. The drainage pipe made of PVC material has the advantages of light weight and corrosion resistance. During use, two PVC pipes need to be connected to each other.

[0003] Chinese patent application number 200420031464.0 discloses a connector suitable for various hoses. The connector achieves sealed connection by pressing the conical socket of the pipe body and the conical locking mouth of the locking nut, which includes the pipe body, the locking nut and the hose. The locking nut is firstly put on the end of the hose, and then the end of the hose is inserted into the conical socket of the pipe body and inserted to the root, and the locking nut is screwed onto the locking thread of the pipe body, and the connection is achieved by tightening.

[0004] However, during long-term operation, due to the aging of the hose, the locking nut and the hose are prone to loosening, causing a gap between the hose and the connector, affecting the connection effect of the connector on the hose.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to enhance the connection effect of the connector on the drainage pipe, the present application provides a PVC drainage pipe connector.

[0007] The present application provides a PVC drainage pipe connector, which adopts the following technical solution:

[0008] A PVC drainage pipe connector, comprising a main body for connecting two pipes, the two ends of the main body are connected, the outer wall of the main body near the two ends is provided with annular protrusions, and the two sides of the annular protrusion are provided with inclined surfaces, and the two ends of the main body are provided with clamping components for clamping the pipe fittings. The clamping component comprises a first clamping member and a second clamping member, the first clamping member and the second clamping member are both sleeved on the main body, the first clamping member is arranged on the side of the annular protrusion away from the middle of the main body, a gap for the pipe to pass through is arranged between the first clamping member and the main body, the second clamping member is arranged on the side of the annular protrusion close to the middle of the main body, the second clamping member is slidably connected to the main body along the axial direction of the main body, the first clamping member and the second clamping member abut the pipe against the two inclined surfaces of the annular protrusion, the outer end surface of the second clamping member is provided with an external thread, and the first clamping member is provided with an internal thread for threaded connection with the second clamping member.

[0009] By adopting the above technical solution, both ends of the main body are inserted into the pipe fitting, and by rotating the first clamping member, the first clamping member and the second clamping member cooperate with each other to abut the pipe fitting against the annular protrusion of the main body, thereby achieving a sealing and fixing effect on the pipe fitting.

[0010] Optionally, a plurality of bolts for fixing the first clamp to the second clamp are provided on the first clamp, the bolts are connected to the first clamp, and one end of the bolt passes through the first clamp and is threadedly connected to the second clamp.

[0011] By adopting the above technical solution, the first clamping member is prevented from loosening during the long-term operation of the first clamping member.

[0012] Optionally: the first clamping member is provided with six through holes for the bolts to pass through, and the through holes are arranged circumferentially along the axis of the first clamping member; the second clamping member is provided with two threaded holes for the bolts to be threadedly connected, and the two threaded holes are arranged symmetrically along the center axis of the second clamping member.

[0013] By adopting the above technical solution, a plurality of through holes are provided, so that the bolts can be inserted into the threaded holes conveniently.

[0014] Optionally: a first abutting surface is provided on a side of the first clamping member close to the annular protrusion, and the first abutting surface is parallel to a side of the annular protrusion away from the middle of the main body.

[0015] By adopting the above technical solution, the first clamping member can be evenly stressed on the pipe, thereby enhancing the sealing effect on the pipe.

[0016] Optionally: anti-slip teeth are coaxially arranged on the first abutting surface.

[0017] By adopting the above technical solution, the contact area between the first abutting surface and the pipe fitting is reduced, and the fixing effect of the first abutting surface on the pipe fitting is further enhanced.

[0018] Optionally, the outer end surface of the main body is provided with a plurality of strip-shaped grooves for limiting the second clamping member, the strip-shaped grooves are circumferentially distributed along the axis of the main body, and the second clamping member is slidably connected in the strip-shaped grooves.

[0019] By adopting the above technical solution, the second clamping member is prevented from rotating along the main body.

[0020] Optionally: a sealing ring is provided on an inclined surface of one side of the annular protrusion close to the middle part of the main body, and the sealing ring is made of rubber.

[0021] By adopting the above technical solution, the sealing effect of the connecting piece on the pipe fitting is further enhanced.

[0022] Optionally: chamfers are provided on the outer walls at both ends of the main body.

[0023] By adopting the above technical solution, it is convenient to insert the main body into the pipe fitting.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application provides a first clamping member and a second clamping member at both ends of the main body, and achieves a tight fixing effect on the pipe fitting through the first clamping member and the second clamping member;

[0026] 2. By setting anti-slip teeth and sealing rings in the clamping assembly, the sealing effect on the pipe fittings is further enhanced;

[0027] 3. By arranging bolts on the first clamping member, it is ensured that the first clamping member will not loosen during long-term operation, thus saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the explosion structure of an embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application;

[0030] Figure 3 for Figure 2 Schematic diagram of the structure of part A.

[0031] In the figure, 1, main body; 11, annular protrusion; 111, sealing ring; 12, strip groove; 2, clamping assembly; 21, first clamping member; 211, first abutting surface; 2111, anti-slip teeth; 212, through hole; 213, bolt; 22, second clamping member; 221, threaded hole. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application discloses a PVC drainage pipe connector, such as Figure 1 As shown, it includes a main body 1 for connecting two pipes, an annular protrusion 11 is provided on the outer wall of the main body 1 near both ends, and inclined surfaces are provided on both sides of the annular protrusion 11. The pipe fitting is sleeved on the main body 1 along the end of the main body 1, and the side of the pipe fitting near the main body 1 abuts against the annular protrusion 11. In order to facilitate the insertion of the main body 1 into the pipe fitting, chamfers are provided on the outer walls of both ends of the main body 1.

[0034] A clamping assembly 2 for clamping the PVC pipe is provided at both ends of the main body 1. The clamping assembly 2 includes a first clamping member 11 and a second clamping member 22. The first clamping member 21 and the second clamping member 22 are both sleeved on the main body 1. The second clamping member 22 is provided on the side of the annular protrusion 11 close to the middle of the main body 1. The outer end surface of the main body 1 is provided with a plurality of strip grooves 12 for limiting the second clamping member 22. The strip grooves 12 are evenly arranged circumferentially along the axis of the main body 1, and each strip groove 12 is arranged parallel to the axis direction of the main body 1. A protrusion corresponding to the strip groove 12 is provided on the side of the second clamping member 22 close to the main body 1. The protrusion of the second clamping member 22 is slidably connected to the strip groove 12 to prevent the second clamping member 22 from rotating along the main body 1. The first clamping member 21 is provided on the side of the annular protrusion 11 away from the middle of the main body 1, and a gap for the pipe to pass through is reserved between the first clamping member 21 and the main body 1.

[0035] The outer end of the second clamping member 22 is provided with an external thread, and the first clamping member 21 is provided with an internal thread for matching with the external thread of the second clamping member 22. By rotating the first clamping member 21, the first clamping member 21 and the second clamping member 22 are brought closer to each other, and the pipe fitting on the outer wall of the main body 1 is pressed against the outer end surface of the annular protrusion 11 to achieve the fixing of the pipe fitting. In order to enhance the fixing effect on the pipe fitting, a first abutting surface 211 is provided on the side of the first clamping member 21 close to the annular protrusion 11. The first abutting surface 211 is parallel to the side of the annular protrusion 11 away from the middle of the main body 1, so as to achieve uniform force on the pipe fitting. At the same time, an anti-slip tooth 2111 is provided in an annular shape on the side of the first abutting surface 211 close to the annular protrusion 11, so as to reduce the contact area between the first abutting surface 211 and the pipe fitting, and further enhance the fixing effect of the first abutting surface 211 on the pipe fitting.

[0036] In order to enhance the sealing effect on the pipe fitting, a sealing ring 111 is provided on the inclined surface of the annular protrusion 11 close to the middle of the main body 1. The sealing ring 111 is annularly embedded in the annular protrusion 11. The sealing ring 111 is made of rubber. When the first clamping member 21 and the second clamping member 22 approach each other, the second abutting block drives the inner wall of the pipe fitting to abut against the sealing ring 111.

[0037] In order to enhance the connection stability between the first clamp 21 and the second clamp 22, two bolts 213 are provided on the first clamp 21 for fixing the first clamp 21 and the second clamp 22. Six through holes 212 are also provided on the first clamp 21 for the bolts 213 to pass through. The six through holes 212 are arranged on the first clamp 21 along the axis of the main body 1. Two threaded holes 221 are provided on the second clamp 22 for the bolts 213 to be threadedly connected. The two threaded holes 221 are arranged symmetrically along the axis of the second clamp 22. After rotating the first clamp 21 to a suitable position, the through hole 212 close to the threaded hole 221 is aligned with the threaded hole 221, and the two bolts 213 are passed through the through hole 212 and threadedly connected to the threaded hole 221, so as to achieve the fixing effect between the first clamp 21 and the second clamp 22, and prevent the first clamp 21 and the second clamp 22 from loosening during long-term work, thereby affecting the fixing effect on the pipe.

[0038] The implementation principle of this embodiment is:

[0039] By inserting the pipe fitting on the main body 1, rotating the first clamping member 21, so that the first clamping member 21 and the second clamping member 22 are close to each other, the first abutting surface 211 on the first clamping member 21 and the annular protrusion 11 cooperate with each other to clamp the pipe fitting, and the second clamping member 22 squeezes the outer end surface of the pipe fitting so that the inner wall of the pipe fitting abuts against the sealing ring 111, thereby further sealing the pipe fitting. After rotating the first clamping member 21 to a suitable position, the two bolts 213 are sequentially connected to the corresponding two through holes 212. After the bolts 213 pass through the through holes 212, they are threadedly connected to the second clamping member 22, thereby achieving a locking effect between the first clamping member 21 and the second clamping member 22.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A PVC drainage pipe connector, characterized in that: The invention comprises a main body (1) for connecting two pipes, the two ends of the main body (1) are connected, annular protrusions (11) are arranged on the outer wall of the main body (1) near the two ends, and inclined surfaces are arranged on both sides of the annular protrusions (11), and clamping components (2) for clamping pipe fittings are arranged at both ends of the main body (1), and the clamping components (2) comprise a first clamping component (21) and a second clamping component (22), the first clamping component (21) and the second clamping component (22) are both sleeved on the main body (1), the first clamping component (21) is arranged on the side of the annular protrusion (11) away from the middle of the main body (1), and the second clamping component (22) is arranged on the side of the annular protrusion (11) away from the middle of the main body (1). A gap is provided between a clamping member (21) and the main body (1) for allowing a pipe to pass through; the second clamping member (22) is provided on one side of the annular protrusion (11) close to the middle of the main body (1); the second clamping member (22) is slidably connected to the main body (1) along the axial direction of the main body (1); the first clamping member (21) and the second clamping member (22) abut the pipe against two inclined surfaces of the annular protrusion (11); the outer end surface of the second clamping member (22) is provided with an external thread; the first clamping member (21) is provided with an internal thread for threaded connection with the second clamping member (22).

2. A PVC drainage pipe connector according to claim 1, characterized in that: The first clamping member (21) is provided with a plurality of bolts (213) for fixing the first clamping member (21) to the second clamping member (22); the bolts (213) are connected to the first clamping member (21); one end of the bolts (213) passes through the first clamping member (21) and is threadedly connected to the second clamping member (22).

3. A PVC drainage pipe connector according to claim 2, characterized in that: The first clamping member (21) is provided with six through holes (212) for the bolts (213) to pass through, and the through holes (212) are arranged circumferentially along the axis of the first clamping member (21), and the second clamping member (22) is provided with two threaded holes (221) for the bolts (213) to be threadedly connected, and the two threaded holes (221) are arranged symmetrically along the center of the axis of the second clamping member (22).

4. A PVC drainage pipe connector according to claim 1, characterized in that: A first abutment surface (211) is provided on a side of the first clamping member (21) close to the annular protrusion (11), and the first abutment surface (211) is parallel to a side of the annular protrusion (11) away from the middle of the main body (1).

5. A PVC drainage pipe connector according to claim 4, characterized in that: Anti-slip teeth (2111) are coaxially arranged on the first abutting surface (211).

6. A PVC drainage pipe connector according to claim 1, characterized in that: The outer end surface of the main body (1) is provided with a plurality of strip-shaped grooves (12) for limiting the second clamping member (22); the strip-shaped grooves (12) are circumferentially distributed along the axis of the main body (1); and the second clamping member (22) is slidably connected in the strip-shaped grooves (12).

7. A PVC drainage pipe connector according to claim 1, characterized in that: A sealing ring (111) is provided on an inclined surface of one side of the annular protrusion (11) close to the middle of the main body (1), and the sealing ring (111) is made of rubber.

8. The PVC drainage pipe connector according to claim 1, characterized in that: The outer walls at both ends of the main body (1) are provided with chamfers.

Images