Threaded drainage pipe plastic joint

Abstract

The utility model relates to a threaded plastic joint of a drainage pipe in the technical field of plastic joints. A pipe body locking device used for locking the connecting pipe is installed on the outer wall of the drainage pipe connector, first external threads are machined on the outer wall of the right side of the drainage pipe connector, and a third leakproof sealing ring is installed on the right wall of the drainage pipe connector. A second sleeve is rotated, so that the second sleeve moves from the left side of the fixing pipe to the right side of the fixing pipe, the outer wall of the right end of the second sleeve abuts against one face of a locking assembly, the locking assembly is pushed, the locking assembly rotates, a clamping block is driven to move towards a groove cavity of an annular clamping groove, and finally the clamping block is clamped into the groove cavity of the annular clamping groove; the first sleeve is locked, so that the first sleeve cannot move rightwards, then locking of the drain pipe connector is completed, the drain pipe connector and the connecting pipe are installed stably, and the waterproof effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic joints, in particular to a threaded drain pipe plastic joint. Background Art

[0002] Water supply and drainage science and engineering is a kind of engineering discipline, abbreviated as water supply and drainage. Water supply and drainage science and engineering generally refers to the urban water supply system and drainage system (municipal water supply and drainage and building water supply and drainage), abbreviated as water supply and drainage.

[0003] Plastic joint pipe fittings are often used in the field of water supply and drainage. At present, the plastic joint pipe fittings on the market include a pipe fitting body, and a connection port for connecting with a drain pipe is arranged on the pipe fitting body. The connection port includes a threaded port. The existing drain pipe plastic joint is turned with an external thread, and the end of the water pipe connected thereto is turned with an internal thread. When the two are directly thread-connected, it is easy to produce slipping of the teeth, resulting in loosening of the drain pipe and the plastic joint pipe fitting. Content of the Utility Model

[0004] In order to solve the problem of loosening between the drain pipe and the plastic joint pipe fitting proposed in the above background art, the utility model provides the following technical solutions:

[0005] A threaded drain pipe plastic joint includes a drain pipe joint for connecting with a connecting pipe;

[0006] A pipe body locking device for locking the connecting pipe is installed on the outer wall of the drain pipe joint.

[0007] An external thread one is machined on the right outer wall of the drain pipe joint, and a sealing ring three for preventing leakage is installed on the right wall of the drain pipe joint.

[0008] The connecting pipe includes a pipe body, a sleeve one is sleeved in the middle of the pipe body, and an internal thread two for cooperating with the external thread one to limit the pipe body is machined on the inner wall of the sleeve one.

[0009] An annular card slot for cooperating with the pipe body locking device to limit the sleeve one is opened on the left outer wall of the sleeve one.

[0010] The pipe body locking device includes a locking component for locking the sleeve one, the pipe body locking device includes a fixed pipe for limiting the locking component, and a sleeve two for controlling the locking component to be inserted into the annular card slot is installed outside the fixed pipe.

[0011] Further, an internal thread is machined at the left end of the drain pipe joint, a sealing ring one is installed at the left end of the internal thread, and a sealing ring two is sleeved on the right outer wall of the drain pipe joint.

[0012] Further, an annular limiting groove for limiting the first sleeve is formed in the middle of the pipe body.

[0013] Further, the locking assembly includes a clamping block, and the clamping block is clamped in the cavity of the annular clamping groove. One end of the clamping block is provided with a rotating rod.

[0014] Further, an external thread two is machined on the left outer wall of the fixed pipe. A plurality of limiting grooves for the locking assembly to swing are formed at the right end of the fixed pipe, and the limiting grooves are L-shaped cavities. A V-shaped elastic sheet for cooperating with the rotating rod to control the clamping block to move away from the annular clamping groove is installed on one side of the cavity of the limiting groove.

[0015] Further, an internal thread three for cooperating with the external thread two to control the second sleeve to push the rotating rod is machined on the left inner wall of the second sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] By rotating the second sleeve, the second sleeve moves from the left side of the fixed pipe to the right side of the fixed pipe. The outer wall of the right end of the second sleeve abuts against one side of the locking assembly and pushes the locking assembly, causing the locking assembly to rotate, driving the clamping block to move into the cavity of the annular clamping groove. Finally, the clamping block is clamped into the cavity of the annular clamping groove to lock the first sleeve, making the first sleeve unable to move to the right, thereby completing the locking of the drain pipe joint, making the installation of the drain pipe joint and the connecting pipe more stable and having a better waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0019] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present utility model can implement. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in the present utility model can cover.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2This is a schematic structural diagram of the drain pipe joint of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the connecting pipe of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the pipe body locking device of the present utility model;

[0024] Figure 5 This is an installation schematic diagram of the locking component and the fixed pipe of the present utility model;

[0025] Figure 6 This is a schematic structural diagram of the second sleeve of the present utility model.

[0026] In the drawings, the list of the names of the components represented by the respective reference numerals is as follows:

[0027] 100 - Drain pipe joint, 110 - First internal thread, 111 - First sealing ring, 120 - Second sealing ring, 130 - First external thread, 140 - Third sealing ring;

[0028] 200 - Connecting pipe, 210 - Pipe body, 211 - Annular limiting groove, 220 - First sleeve, 221 - Second internal thread, 222 - Annular clamping groove;

[0029] 300 - Pipe body locking device, 310 - Locking component, 311 - Block, 312 - Rotating rod, 320 - Fixed pipe, 321 - Second external thread, 322 - Limiting groove, 323 - V-shaped elastic piece, 330 - Second sleeve, 331 - Third internal thread. Detailed implementation manners

[0030] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] The terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description and clarity, rather than to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships shall also be regarded as the scope of implementation of the present utility model without substantial change in the technical content.

[0032] Please refer to Figures 1-6, the utility model provides a threaded drain pipe plastic joint, which includes a drain pipe joint 100, a connecting pipe 200 and a pipe body locking device 300. The drain pipe joint 100 and the connecting pipe 200 are connected. The fixed pipe 320 is fixedly installed on the outer wall of the drain pipe joint 100. When the connecting pipe 200 is screwed tightly on the right side of the drain pipe joint 100, the right inner wall of the sealing ring three 140 and the sleeve one 220 are tightly abutted, and the left end side wall of the sealing ring two 120 and the sleeve one 220 are tightly abutted to prevent water leakage.

[0033] By rotating the sleeve two 330, the sleeve two 330 moves from the left side of the fixed pipe 320 to the right side of the fixed pipe 320. The right end outer wall of the sleeve two 330 abuts against one side of the locking component 310 and pushes the locking component 310, causing the locking component 310 to rotate, driving the block 311 to move towards the cavity of the annular slot 222. Finally, the block 311 is inserted into the cavity of the annular slot 222 to lock the sleeve one 220, making the sleeve one 220 unable to move to the right, thereby completing the locking of the drain pipe joint 100, making the installation of the drain pipe joint 100 and the connecting pipe 200 more stable and having a better waterproof effect.

[0034] The left end of the drain pipe joint 100 for connecting with the connecting pipe 200 is processed with an internal thread 110. The left end of the internal thread 110 is installed with a sealing ring one 111. The right outer wall of the drain pipe joint 100 is sleeved with a sealing ring two 120. The right outer wall of the drain pipe joint 100 is processed with an external thread one 130. The right wall of the drain pipe joint 100 is installed with a sealing ring three 140 for preventing leakage. A cavity for placing the sealing ring three 140 is opened on the right wall of the drain pipe joint 100. When the connecting pipe 200 abuts against the drain pipe joint 100, the sealing ring three 140 closely adheres to the right inner wall of the sleeve one 220, and the sealing ring two 120 closely adheres to the left end side wall of the sleeve one 220 for waterproofing.

[0035] The connecting pipe 200 includes a pipe body 210. An annular limiting groove 211 for limiting the sleeve one 220 is opened in the middle of the pipe body 210. The middle of the pipe body 210 is sleeved with a sleeve one 220, and one side of the sleeve one 220 slides in the cavity of the annular limiting groove 211.

[0036] The inner wall of the first sleeve 220 is machined with a second internal thread 221 for cooperating with the first external thread 130 to limit the pipe body 210. When installing the drain pipe joint 100 and the connecting pipe 200, by rotating the first sleeve 220, the second internal thread 221 cooperates with the first external thread 130, so that the pipe body 210 and the drain pipe joint 100 approach each other, and finally the pipe body 210 is installed on the right side of the drain pipe joint 100. An annular clamping groove 222 for cooperating with the pipe body locking device 300 to limit the first sleeve 220 is formed on the left outer wall of the first sleeve 220, and the clamping block 311 is clamped in the cavity of the annular clamping groove 222.

[0037] A pipe body locking device 300 for locking the connecting pipe 200 is installed on the outer wall of the drain pipe joint 100. The pipe body locking device 300 includes a locking assembly 310 for locking the first sleeve 220, and a plurality of locking assemblies 310 are provided. The locking assembly 310 includes a clamping block 311, and the clamping block 311 is clamped in the cavity of the annular clamping groove 222. One end of the clamping block 311 is fixedly installed with a rotating rod 312.

[0038] The pipe body locking device 300 includes a fixed pipe 320 for limiting the locking assembly 310. The left outer wall of the fixed pipe 320 is machined with a second external thread 321. A plurality of limiting grooves 322 for allowing the locking assembly 310 to swing are formed at the right end of the fixed pipe 320, and the limiting grooves 322 are L-shaped cavities. A V-shaped elastic piece 323 for cooperating with the rotating rod 312 to control the clamping block 311 to move away from the annular clamping groove 222 is fixedly installed on one side of the cavity of the limiting groove 322.

[0039] A second sleeve 330 for controlling the locking assembly 310 to be inserted into the annular clamping groove 222 is installed outside the fixed pipe 320. The left inner wall of the second sleeve 330 is machined with a third internal thread 331 for cooperating with the second external thread 321 to control the second sleeve 330 to push the rotating rod 312.

[0040] After the first sleeve 220 controls the connection between the drain pipe joint 100 and the connecting pipe 200, by rotating the second sleeve 330, the third internal thread 331 cooperates with the second external thread 321 to control the second sleeve 330 to move to the right, so that the second sleeve 330 pushes one side of the rotating rod 312, and the clamping block 311 synchronously moves into the cavity of the annular clamping groove 222, and finally is clamped in the cavity of the annular clamping groove 222 to complete the locking of the connecting pipe 200.

[0041] When the rotating rod 312 drives the clamping block 311 to be inserted into the cavity of the annular clamping groove 222, one side of the rotating rod 312 squeezes the V-shaped elastic piece 323, and the V-shaped elastic piece 323 undergoes elastic deformation. When the second sleeve 330 is rotated in the reverse direction, the V-shaped elastic piece 323 pushes the rotating rod 312, so that the clamping block 311 moves away from the cavity of the annular clamping groove 222, facilitating the disassembly of the drain pipe joint 100.

[0042] Based on the above content and the drawings, those skilled in the art can understand and implement the present utility model. In addition, any non-creative modifications made to the present utility model by those skilled in the art without creative efforts still fall within the protection scope of the present utility model.

Claims

1. A threaded drain pipe plastic joint, comprising a drain pipe joint (100) for connecting to a connecting pipe (200), characterized in that: The outer wall of the drainage pipe joint (100) is provided with a pipe body locking device (300) for locking the connecting pipe (200); The right outer wall of the drainage pipe joint (100) is processed with an external thread one (130), and the right wall of the drainage pipe joint (100) is installed with a leakage-proof sealing ring three (140); The connecting pipe (200) comprises a pipe body (210), a sleeve (220) is sleeved in the middle of the pipe body (210), and an inner wall of the sleeve (220) is processed with an inner thread (221) for cooperating with an outer thread (130) to limit the position of the pipe body (210); The left outer wall of the sleeve 1 (220) is provided with an annular groove (222) for cooperating with the tube body locking device (300) to limit the position of the sleeve 1 (220); The tube body locking device (300) comprises a locking assembly (310) for locking a sleeve (220), the tube body locking device (300) comprises a fixing tube (320) for limiting the position of the locking assembly (310), and a sleeve (330) for controlling the locking assembly (310) to be inserted into an annular groove (222) is installed outside the fixing tube (320).

2. A threaded plastic drain pipe joint according to claim 1, characterized in that: The left end of the drainage pipe joint (100) is processed with an internal thread (110), the left end of the internal thread (110) is installed with a sealing ring 1 (111), and the outer wall of the right end of the drainage pipe joint (100) is sleeved with a sealing ring 2 (120).

3. A threaded plastic drain pipe joint according to claim 1, characterized in that: An annular limiting groove (211) for limiting the position of the sleeve 1 (220) is provided in the middle of the tube body (210).

4. A threaded plastic drain pipe joint according to claim 1, characterized in that: The locking assembly (310) comprises a clamping block (311), and the clamping block (311) is clamped in the groove cavity of the annular clamping groove (222), and a rotating rod (312) is installed at one end of the clamping block (311).

5. A threaded plastic drain pipe joint according to claim 4, characterized in that: The left outer wall of the fixing tube (320) is processed with an external thread 2 (321), and the right end of the fixing tube (320) is provided with a plurality of limiting grooves (322) for the locking assembly (310) to swing, and the limiting grooves (322) are L-shaped groove cavities, and a V-shaped spring piece (323) is installed on one side of the groove cavity of the limiting groove (322) for cooperating with the rotating rod (312) to control the clamping block (311) to be away from the annular clamping groove (222).

6. A threaded plastic drain pipe joint according to claim 5, characterized in that: The left inner wall of the second sleeve (330) is processed with an inner thread three (331) for cooperating with the outer thread two (321) to control the second sleeve (330) to push the rotating rod (312).

Images