CN112377706A

CN112377706A - Polyethylene pipe

Info

Publication number: CN112377706A
Application number: CN202011187369.XA
Authority: CN
Inventors: 吴嘉文; 李云
Original assignee: Individual
Current assignee: Zhejiang Yueqing Pipe Industry Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-19
Anticipated expiration: 2040-10-30
Also published as: CN112377706B

Abstract

The invention relates to the technical field of polyethylene pipes, in particular to a polyethylene pipe, which comprises a pipe tail, wherein a supporting mechanism is arranged inside the pipe tail, the supporting mechanism is in threaded connection with a pressing mechanism and is aligned with a pipe head through an arranged sleeve, then a rotary drum is rotated to enable second threads to be in threaded connection with first threads, so that the rotary drum is in threaded connection inside the sleeve, when the rotary drum moves towards the direction of the sleeve, the rotary drum drives a fixed drum to move, the fixed drum drives a second fixed block to move through an annular groove, the second fixed block drives the pipe head and a supporting cylinder to move towards the inside of the sleeve, so that an extruding ring moves towards the inside of the pipe tail, a first conical groove is inserted into the conical groove, so that the pipe tail and the pipe head are connected, the pipe head and the pipe tail are supported through a supporting ring, and after the supporting ring and the supporting cylinder are deformed by unsustainable heavy pressure, the rotary drum and the sleeve can extrude the pipe head, thereby preventing the water flow from causing resource waste.

Description

Polyethylene pipe

Technical Field

The invention relates to the technical field of polyethylene pipes, in particular to a polyethylene pipe.

Background

Polyethylene pipe is the tubular product of polyethylene material, and polyethylene is a degree of crystallinity height, nonpolar thermoplastic resin, and the outward appearance of pristine polyethylene is milk white, is the translucent form of certain degree at little thin section, and polyethylene has the excellent characteristic of resistant most life and industrial chemicals, and polyethylene plastic pipe mainly falls into two main categories: high density polyethylene and low density polyethylene, low density polyethylene has good flexibility, but low compressive strength, so it can only be used for low pressure small diameter pipes, and high density polyethylene material has good compressive property, so it is widely used in pressure pipe field.

The polyethylene pipe has the advantages of no toxicity, good low-temperature performance, arbitrary length capable of being wound, few joints, convenient construction and installation, good adaptability to water hammering and the like, is mostly used in the fields of urban water supply, drainage, agricultural irrigation and drainage and the like, water flow is conveyed through the polyethylene pipe, but the existing polyethylene pipe is mostly connected through the connecting pipe joint when being connected, the pipe tail and the pipe head are connected in an inserting way at the two ends of the connecting pipe joint, but when the joint of the pipeline is extruded, the supervision joint can be extruded and deformed, and then a gap can be formed at the joint of the pipeline and the connecting pipe joint, and further the water flow in the pipeline can be leaked to cause resource waste,

disclosure of Invention

The invention provides a polyethylene pipe, which aims to solve the problems that most of existing polyethylene pipes in the prior art are connected through a connecting pipe joint, a pipe tail and a pipe head are connected at two ends of the connecting pipe joint in an inserted mode, but when the joint of a pipeline is extruded, a supervision joint can be extruded and deformed, gaps can exist at the joint of the pipeline and a continuous joint, water flow in the pipeline can leak, and resource waste is caused.

The technical scheme adopted by the invention for solving the technical problems is as follows: a polyethylene pipe comprises a pipe tail, wherein a supporting mechanism is arranged inside the pipe tail and is in threaded connection with a pressing mechanism, a sealing mechanism is arranged inside the pressing mechanism, and a fixing mechanism is arranged on the surface of the supporting mechanism; supporting mechanism includes first fixed orifices, first fixed block, support ring, taper groove, sleeve, first screw thread, two first fixed orifices symmetry is seted up at the pipe tail on the surface, two the inside fixed cover of first fixed orifices has cup jointed first fixed block, two first fixed block is located the same support ring of one end fixedly connected with of pipe tail, the taper groove has been seted up on the one end inner wall of support ring, two the other end fixed connection of first fixed block is on same telescopic inner wall, the sleeve has seted up first screw thread on being close to the one end outer wall in taper groove.

Specifically, the pressing mechanism comprises a second thread, a rotary drum, a fixed cylinder, an annular groove, a second fixed block, a second fixed hole, a pipe head, a supporting cylinder, an extrusion ring and a first conical surface, the second screw thread is connected with the first screw thread, the first screw thread is arranged on the inner wall of the rotary drum, a fixed cylinder is fixedly sleeved on the inner wall of the other end of the rotary cylinder, an annular groove is arranged on the inner wall of the fixed cylinder, two second fixing blocks are slidably connected inside the annular groove, the two second fixing blocks are respectively fixedly sleeved inside the two second fixing holes, the two second fixing holes are formed in the surface of the tube head, the other ends of the two second fixing blocks are fixedly connected to the inner wall of the same supporting cylinder, the supporting cylinder is fixedly sleeved on the inner wall of the tube head, the other end of the supporting cylinder is fixedly connected with an extrusion ring, and the outer wall of the other end of the extrusion ring is provided with a first conical surface.

Specifically, sealing mechanism includes annular clamp groove, rubber circle, taper ring, second toper face, solid fixed ring, set up in the sleeve one end near solid fixed cylinder of annular clamp groove, the fixed centre gripping in inside in annular clamp groove has the rubber circle, a side surface and the taper ring in close contact with of rubber circle, the fixed cup joint of taper ring is on the inner wall of rotary drum, the opposite side surface and the second toper face contact of rubber circle, the second toper face is set up on solid fixed ring's outer wall, gu fixed ring fixed connection is close to telescopic one end at solid fixed cylinder.

Specifically, the fixing mechanism comprises L-shaped grooves, L-shaped rods, circular grooves, springs, spring clamping grooves, fixing rods, fixing grooves and connecting arc rods, the two L-shaped grooves are symmetrically formed in the outer wall of the sleeve, the L-shaped rods are connected to the inner parts of the two L-shaped grooves in a sliding mode, the rotary drum is characterized in that a circular groove is formed in one side wall, far away from the rotary drum, of each L-shaped rod, springs are clamped in the circular grooves, the other ends of the springs are clamped in the two spring clamping grooves respectively, the two spring clamping grooves are formed in the inner walls of the two L-shaped grooves respectively, fixing rods are fixedly connected to the side wall of the other side of each L-shaped rod, the other ends of the fixing rods are clamped in the two fixing grooves respectively, the two fixing grooves are formed in the surface of the rotary drum, and the two connecting arc rods are fixedly connected to the side walls of the two sides of each L-shaped rod respectively.

Specifically, the first conical surface is inserted in the conical groove.

Specifically, the tube tail and the tube head are symmetrical to each other, and the tube tail and the tube head are arranged in a contact mode.

Specifically, the tube head is inserted into the sleeve.

The invention has the beneficial effects that:

(1) according to the polyethylene pipe, the arranged sleeve is aligned with the pipe head, then the rotary drum is rotated to enable the second threads to be in threaded connection with the first threads, the rotary drum is further in threaded connection with the inside of the sleeve, when the rotary drum moves towards the direction of the sleeve, the rotary drum drives the fixed drum to move, the fixed drum drives the second fixed block to move through the annular groove, the second fixed block drives the pipe head and the supporting drum to move towards the inside of the sleeve, the extrusion ring moves towards the inside of the pipe tail, the first conical groove is inserted into the conical groove, the pipe tail is further connected with the pipe head, the pipe head and the pipe tail are supported through the supporting ring supporting drum, and after the supporting ring and the supporting drum are deformed under the unassawable heavy pressure, the rotary drum and the sleeve can extrude the pipe head and the pipe tail to be tightly attached to the supporting ring and the supporting drum, and further.

(2) According to the polyethylene pipe, the fixing ring is pushed to move by the arranged fixing cylinder, the fixing ring drives the second cone to extrude the rubber ring, the other side of the rubber ring is in contact with the cone ring, the rubber ring blocks a gap between the rotary cylinder and the sleeve, and water flow is effectively prevented from leaking between threads between the rotary cylinder and the sleeve.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a polyethylene pipe provided by the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1 of a polyethylene pipe provided by the present invention;

FIG. 3 is an enlarged view of a portion B in FIG. 1 of a polyethylene pipe provided by the present invention;

FIG. 4 is a cross-sectional view taken along line C-C in FIG. 1 of a polyethylene pipe provided by the present invention;

FIG. 5 is a cross-sectional view taken along line D-D in FIG. 1 of a polyethylene pipe provided by the present invention;

FIG. 6 is a schematic view of a polyethylene pipe supporting ring structure according to the present invention;

fig. 7 is a schematic structural view of a support cylinder for polyethylene pipes according to the present invention.

In the figure: 1. a pipe tail; 2. a support mechanism; 21. a first fixing hole; 22. a first fixed block; 23. a support ring; 24. a conical groove; 25. a sleeve; 26. a first thread; 3. a pressing mechanism; 31. a second thread; 32. a rotating drum; 33. a fixed cylinder; 34. an annular groove; 35. a second fixed block; 36. a second fixing hole; 37. a pipe head; 38. a support cylinder; 39. an extrusion ring; 310. a first conical surface; 4. a sealing mechanism; 41. an annular clamp groove; 42. a rubber ring; 43. a conical ring; 44. a second tapered surface; 45. a fixing ring; 5. a fixing mechanism; 51. an L-shaped slot; 52. an L-shaped rod; 53. a circular groove; 54. a spring; 55. a spring clamp groove; 56. fixing the rod; 57. fixing grooves; 58. and an arc rod is connected.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the polyethylene pipe according to the present invention includes a pipe tail 1, a supporting mechanism 2 is disposed inside the pipe tail 1, the supporting mechanism 2 is in threaded connection with a pressing mechanism 3, a sealing mechanism 4 is disposed inside the pressing mechanism 3, and a fixing mechanism 5 is disposed on a surface of the supporting mechanism 2.

Specifically, the supporting mechanism 2 includes first fixing holes 21, first fixing blocks 22, supporting rings 23, tapered grooves 24, sleeves 25 and first threads 26, the two first fixing holes 21 are symmetrically arranged on the surface of the pipe tail 1, the first fixing blocks 22 are fixedly sleeved inside the two first fixing holes 21, one end of each of the two first fixing blocks 22 located at the pipe tail 1 is fixedly connected with the same supporting ring 23, the inner wall of one end of each supporting ring 23 is provided with the tapered groove 24, the other ends of the two first fixing blocks 22 are fixedly connected to the inner wall of the same sleeve 25, the outer wall of one end of each sleeve 25 close to the tapered groove 24 is provided with the first threads 26, the sleeves 25 are aligned with the pipe heads 37, the first threads 26 are in contact with the second threads 31, then the rotating drum 32 is rotated, the rotating drum 32 drives the second threads 31 to be in threaded connection with the first threads 26, the second threads 31 extrude the first threads 26 to move the rotating drum 32 towards the direction of the sleeves 25, thereby threading the bowl 32 inside the sleeve 25.

Specifically, the pressing mechanism 3 includes a second thread 31, a rotating cylinder 32, a fixed cylinder 33, an annular groove 34, a second fixed block 35, a second fixed hole 36, a tube head 37, a supporting cylinder 38, an extrusion ring 39, and a first conical surface 310, the second thread 31 is in threaded connection with the first thread 26, the first thread 26 is arranged on the inner wall of the rotating cylinder 32, the fixed cylinder 33 is fixedly sleeved on the inner wall of the other end of the rotating cylinder 32, the annular groove 34 is arranged on the inner wall of the fixed cylinder 33, the two second fixed blocks 35 are slidably connected inside the annular groove 34, the two second fixed blocks 35 are respectively fixedly sleeved inside the two second fixed holes 36, the two second fixed holes 36 are arranged on the surface of the tube head 37, the other ends of the two second fixed blocks 35 are fixedly connected on the inner wall of the same supporting cylinder 38, the supporting cylinder 38 is fixedly sleeved on the inner wall of the tube head 37, the other end of the supporting cylinder 38 is fixedly, the outer wall of the other end of the extrusion ring 39 is provided with a first conical surface 310, when the rotary drum 32 moves towards the sleeve 25, the rotary drum 32 drives the fixed drum 33 to move, the fixed drum 33 drives the annular groove 34 to move, the annular groove 34 drives the second fixed block 35 to move, the second fixed block 35 drives the pipe head 37 and the support drum 38 to move towards the inside of the sleeve 26, the support drum 38 drives the extrusion ring 39 to move towards the inside of the pipe tail 1, the extrusion ring 39 drives the first conical groove 310 to be inserted into the conical groove 24, so that the pipe tail 1 is connected with the pipe head 37, the support drum 38 supports the pipe head 37 and the pipe tail 1 through the support ring 23, after the support ring 23 and the support drum 38 are deformed by the unassappable heavy pressure, the rotary drum 32 and the sleeve 26 can extrude the pipe head 37 and the pipe tail 1 to be tightly attached to the support ring 23 and the.

Specifically, the sealing mechanism 4 includes an annular clamping groove 41, a rubber ring 42, a conical ring 43, a second conical surface 44, and a fixing ring 45, the annular clamping groove 41 is provided at one end of the sleeve 25 close to the fixed cylinder 33, the rubber ring 42 is fixedly clamped inside the annular clamping groove 41, one side surface of the rubber ring 42 is in close contact with the conical ring 43, the conical ring 43 is fixedly sleeved on the inner wall of the rotating cylinder 32, the other side surface of the rubber ring 42 is in contact with the second conical surface 44, the second conical surface 44 is provided on the outer wall of the fixing ring 45, the fixing ring 45 is fixedly connected at one end of the fixed cylinder 33 close to the sleeve 25, the fixing ring 45 is pushed to move by the fixing cylinder 33, the fixing ring 15 drives the second conical surface 44 to extrude the rubber ring 42, the other side of the rubber ring 42 is contacted with the conical ring 43, the rubber ring 42 thus closes the gap between the bowl 32 and the sleeve 29, and effectively prevents water from leaking between the threads between the bowl 32 and the sleeve 26.

Specifically, the fixing mechanism 5 includes L-shaped grooves 51, L-shaped rods 52, circular grooves 53, springs 54, spring slots 55, fixing rods 56, fixing grooves 57, and connecting arc rods 58, wherein the two L-shaped grooves 51 are symmetrically formed on the outer wall of the sleeve 25, the L-shaped rods 52 are slidably connected inside the two L-shaped grooves 51, the circular grooves 53 are formed on the side wall of the L-shaped rods 52 on the side away from the drum 32, the springs 54 are clamped inside the two circular grooves 53, the other ends of the two springs 54 are respectively clamped inside the two spring slots 55, the two spring slots 55 are respectively formed on the inner walls of the two L-shaped grooves 51, the fixing rods 56 are fixedly connected to the side wall of the other sides of the two L-shaped rods 52, the other ends of the two fixing rods 56 are respectively clamped inside the two fixing grooves 57, the two fixing grooves 57 are formed on the surface of the drum 32, the two connecting arc rods 58 are respectively fixedly connected to the side, after the rotary drum 32 is completely connected with the sleeve 26, the connecting arc rod 58 is released to enable the spring 54 to give out elastic force, the spring 54 pushes the circular groove 53, the L-shaped rod 52 moves towards the rotary drum 32, the L-shaped rod 52 is inserted into the fixing groove 57, the rotary drum 32 is fixed, and the phenomenon that the rotary drum 32 is connected with the sleeve 26 loosely to cause pipeline leakage is avoided.

Specifically, the first tapered surface 310 is inserted into the tapered groove 24, and the tube end 1 and the tube head 37 are supported by the pressing ring 39 and the supporting ring 23.

Specifically, the tube tail 1 and the tube head 37 are symmetrical to each other, and the tube tail 1 is arranged in contact with the tube head 37, so that the tube tail 1 and the tube head 37 correspond to each other.

Specifically, the pipe head 37 is inserted into the sleeve 25, and the pipe head 37 and the pipe tail 1 are stably wrapped by the sleeve 25.

When the pipe end support device is used, firstly, the sleeve 25 is aligned with the pipe head 37, the first threads 26 are contacted with the second threads 31, then the rotating drum 32 is rotated, the rotating drum 32 drives the second threads 31 to be in threaded connection with the first threads 26, the second threads 31 extrude the first threads 26 to enable the rotating drum 32 to move towards the sleeve 25, further, the rotating drum 32 is in threaded connection with the inside of the sleeve 25, when the rotating drum 32 moves towards the sleeve 25, the rotating drum 32 drives the fixed drum 33 to move, the fixed drum 33 drives the annular groove 34 to move, the annular groove 34 drives the second fixed block 35 to move, the second fixed block 35 drives the pipe head 37 and the support drum 38 to move towards the inside of the sleeve 26, the support drum 38 drives the extrusion ring 39 to move towards the inside of the pipe end 1, the extrusion ring 39 drives the first conical groove 310 to be inserted into the conical groove 24, further, the pipe end 1 is connected with the pipe head 37, the support drum 38 supports the pipe head 37, when the support ring 23 and the support cylinder 38 are deformed by an unacceptable heavy pressure, the rotating cylinder 32 and the sleeve 26 can press the pipe head 37 and the pipe tail 1 to be tightly attached to the support ring 23 and the support cylinder 38, thereby preventing resource waste caused by water flow, meanwhile, the fixing ring 45 is pushed by the fixing cylinder 33 to move, the fixing ring 15 drives the second conical surface 44 to press the rubber ring 42, so that the other side of the rubber ring 42 is contacted with the conical ring 43, further the rubber ring 42 plugs a gap between the rotating cylinder 32 and the sleeve 29, thereby effectively preventing water flow from leaking between threads between the rotating cylinder 32 and the sleeve 26, meanwhile, after the rotating cylinder 32 is completely connected with the sleeve 26, the spring 54 is released by releasing the connecting arc rod 58, the spring 54 pushes the circular groove 53, the L-shaped rod 52 moves towards the rotating cylinder 32, and the L-shaped rod 52 is inserted in the fixing groove 57, so that the rotating cylinder 32 is fixed, preventing the bowl 32 from loosening its connection to the sleeve 26 and causing leakage from the conduit.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polyethylene pipe characterized in that: the pipe tail sealing device comprises a pipe tail (1), wherein a supporting mechanism (2) is arranged inside the pipe tail (1), the supporting mechanism (2) is in threaded connection with a pressing mechanism (3), a sealing mechanism (4) is arranged inside the pressing mechanism (3), and a fixing mechanism (5) is arranged on the surface of the supporting mechanism (2); supporting mechanism (2) include first fixed orifices (21), first fixed block (22), support ring (23), taper groove (24), sleeve (25), first screw thread (26), two first fixed orifices (21) symmetry is seted up at pipe tail (1) on the surface, two the fixed cover in inside of first fixed orifices (21) has cup jointed first fixed block (22), two one end fixedly connected with same support ring (23) that first fixed block (22) are located pipe tail (1), taper groove (24) have been seted up on the one end inner wall of support ring (23), two the other end fixed connection of first fixed block (22) is on the inner wall of same sleeve (25), sleeve (25) are close to and have seted up first screw thread (26) on the one end outer wall of taper groove (24).

2. A polyethylene pipe according to claim 1, wherein: the pressing mechanism (3) comprises a second thread (31), a rotary drum (32), a fixed cylinder (33), an annular groove (34), a second fixed block (35), a second fixed hole (36), a pipe head (37), a supporting cylinder (38), an extrusion ring (39) and a first conical surface (310), the second thread (31) is in threaded connection with the first thread (26), the first thread (26) is arranged on the inner wall of the rotary drum (32), the fixed cylinder (33) is fixedly sleeved on the inner wall of the other end of the rotary drum (32), the annular groove (34) is arranged on the inner wall of the fixed cylinder (33), the two second fixed blocks (35) are slidably connected inside the annular groove (34), the two second fixed blocks (35) are respectively fixedly sleeved inside the two second fixed holes (36), and the two second fixed holes (36) are arranged on the surface of the pipe head (37), two the other end fixed connection of second fixed block (35) is on the inner wall of same a support section of thick bamboo (38), a support section of thick bamboo (38) are fixed cup joints on the inner wall of tube head (37), the other end fixedly connected with extrusion ring (39) of a support section of thick bamboo (38), first conical surface (310) have been seted up on the other end outer wall of extrusion ring (39).

3. A polyethylene pipe according to claim 1, wherein: sealing mechanism (4) include annular clamp groove (41), rubber ring (42), awl ring (43), second conical surface (44), solid fixed ring (45), set up in sleeve (25) of annular clamp groove (41) and be close to the one end of solid fixed cylinder (33), the fixed centre gripping in inside of annular clamp groove (41) has rubber ring (42), a side surface and awl ring (43) in close contact with of rubber ring (42), the fixed cover of awl ring (43) is established on the inner wall of rotary drum (32), the opposite side surface and the second conical surface (44) contact of rubber ring (42), second conical surface (44) are set up on the outer wall of solid fixed ring (45), gu fixed ring (45) fixed connection is close to the one end of sleeve (25) in solid fixed cylinder (33).

4. A polyethylene pipe according to claim 1, wherein: the fixing mechanism (5) comprises L-shaped grooves (51), L-shaped rods (52), circular grooves (53), springs (54), spring clamping grooves (55), fixing rods (56), fixing grooves (57) and connecting arc rods (58), the two L-shaped grooves (51) are symmetrically arranged on the outer wall of the sleeve (25), the L-shaped rods (52) are respectively connected to the insides of the two L-shaped grooves (51) in a sliding manner, the circular grooves (53) are arranged on the side wall, away from the rotary drum (32), of the L-shaped rods (52), the springs (54) are respectively clamped to the insides of the two circular grooves (53), the other ends of the two springs (54) are respectively clamped to the insides of the two spring clamping grooves (55), the two spring clamping grooves (55) are respectively arranged on the inner walls of the two L-shaped grooves (51), and the fixing rods (56) are respectively fixedly connected to the side wall of the other sides of the two L, the other ends of the two fixing rods (56) are respectively clamped inside two fixing grooves (57), the two fixing grooves (57) are formed in the surface of the rotary drum (32), and two connecting arc rods (58) are respectively and fixedly connected to the side walls of the two sides of the two L-shaped rods (52).

5. A polyethylene pipe as claimed in claim 2, wherein: the first conical surface (310) is inserted in the conical groove (24).

6. A polyethylene pipe according to claim 1, wherein: the pipe tail (1) and the pipe head (37) are symmetrical to each other, and the pipe tail (1) is in contact with the pipe head (37).

7. A polyethylene pipe as claimed in claim 2, wherein: the pipe head (37) is movably sleeved inside the sleeve (25).