PE pipe convenient to connect and fasten

Abstract

The invention relates to the technical field of connecting pipes, in particular to a PE pipe convenient to connect and fasten, which comprises a first connector and a second connector which are in threaded connection, and a connecting mechanism is in threaded connection with an external thread; the connecting pipe mechanism comprises a second PE pipe, the outer surface of the second PE pipe is sleeved with a pushing ring and a spacer bush, a plurality of air cylinders are arranged between the pushing ring and the spacer bush, one end of each air cylinder is connected with the pushing ring, the other end of each air cylinder is connected with an air bag through a pipeline, and the air bags are installed between the spacer bush and the second PE pipe. The first PE pipe is mounted on the outer side of the second PE pipe in a sliding manner; the first connector and the second connector are connected in a threaded mode, so that the PE pipes are conveniently and rapidly connected, rapid connection is conducted in some power shortage or underwater environments, and connection of the PE pipes in some special environments is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting pipes, and particularly relates to a PE pipe that is convenient for connection and fastening. Background Art

[0002] PE is polyethylene plastic, one of the most basic plastics. The appearance of raw PE is milky white, and it is semi-transparent to a certain extent in a thin cross-section; PE has excellent properties against most chemicals used in life and industry. PE pipe is a representative product among polyethylene plastics. The main methods for connecting and fastening PE pipes mainly include hot melt connection and electrofusion connection; however, these connection methods are not applicable in some special environments, such as underwater, in a closed environment, or in an environment lacking electricity and being narrow, and at the same time, the above connection methods have low connection efficiency, can only connect pipes one by one, and need to be cooled before use after connection.

[0003] In view of the above problems, the present invention provides a PE pipe that can be quickly connected. Summary of the Invention

[0004] A PE pipe that is convenient for connection and fastening includes a first connector and a second connector connected by threads. The first connector and the second connector are connected by threads. The first connector includes a fixed shell, a first PE pipe disposed in the circular hole of the fixed shell, and an external thread disposed on the outer surface of the fixed shell. The second connector includes a connection mechanism, a connection pipe mechanism disposed in the circular hole of the connection mechanism, and a second fixing mechanism disposed inside the connection mechanism; the connection mechanism is threadedly connected to the external thread. The connection pipe mechanism includes a second PE pipe. A push ring and a spacer sleeve are sleeved on the outer surface of the second PE pipe. A plurality of air cylinders are disposed between the push ring and the spacer sleeve. One end of the air cylinder is connected to the push ring, and the other end is connected to an airbag through a pipeline. The airbag is installed between the spacer sleeve and the second PE pipe. The first PE pipe is slidably installed outside the second PE pipe.

[0005] Further, a push rod is disposed on the push ring. The end of the push rod away from the push ring is rotatably connected to a first clamping rod. The middle of the first clamping rod is rotatably installed on the spacer sleeve. A driving mechanism is disposed between the push ring and the spacer sleeve.

[0006] Further, the driving mechanism includes an electric push rod. The bottom of the cylinder body of the electric push rod is fixedly connected to the spacer sleeve, and the end of its piston rod is fixedly connected to the push ring.

[0007] Further, a card slot is disposed on the first PE pipe, and the card slot is clamped with the first clamping rod.

[0008] Further, the connecting mechanism includes a connecting base, one end of the connecting base close to the first connector is rotatably installed with a rotating baffle, and a threaded ring is slidably installed on the rotating baffle; bumps are provided on the outer sides of the threaded ring and the connecting base; a limiting structure is installed on the outer side of the bump.

[0009] Further, the limiting structure includes a sliding block slidably installed in the chute of the connecting base, a first spring is arranged in the chute of the connecting base, one end of the first spring is fixedly connected with the connecting base, the other end is fixedly connected with the sliding block, the sliding block is connected with a linkage rod through a rotating shaft, the other end of the linkage rod is rotatably connected with a sliding clamping plate, the sliding clamping plate is slidably installed on the bump, and a locking mechanism is slidably installed on the sliding block.

[0010] Further, the locking mechanism includes a second clamping rod sliding on the end face of the connecting base, a second spring is arranged at one end of the second clamping rod away from the sliding block, and the second spring is fixedly connected with the groove on the end face of the connecting base.

[0011] Further, the second fixing mechanism includes a limiting plate arranged inside the connecting base, a pressing rod slidably installed on the limiting plate, and a semi-circular clamping plate rotatably installed on the pressing rod.

[0012] Further, a limiting rod is arranged on the limiting plate, and a first limiting column and a second limiting column are arranged at intervals on the limiting rod; the semi-circular clamping plate passes through the gap between the first limiting column and the second limiting column.

[0013] Further, the second fixing mechanism further includes a third clamping rod slidably installed inside the connecting base, a third spring is sleeved on the third clamping rod, one end of the third spring is fixedly connected with the third clamping rod, and the other end is fixedly connected with the connecting base.

[0014] Since the present invention adopts the above technical solutions, the present invention has the following advantages: 1. By arranging the threaded connection between the first connector and the second connector, the present invention realizes the convenient and quick connection of the PE pipe, and further enables the quick connection in some power-deficient or sealed environments or underwater environments, realizing the connection of the PE pipe in some special environments.

[0015] 2. When the second PE pipe is slidably installed outside the first PE pipe, the electric push rod contracts to drive the pushing ring to move towards the first clamping rod, and then the pushing ring drives the pull rod to compress the air cylinder, so that the gas in the air cylinder enters the air bag, and the air bag expands, and then the air bag seals the connection between the second PE pipe and the first PE pipe, realizing the sealing.

[0016] 3. The present invention drives the pushing ring to move towards the first clamping rod through the contraction of the electric push rod. The pushing ring drives the pushing rod, and then pushes the first clamping rod to rotate so that the first clamping rod approaches the end of the first PE pipe and is clamped into the clamping groove, thereby limiting the first PE pipe.

[0017] 4. The present invention manually presses down the pressing rod, and then the pressing rod slides in the limiting plate. The limiting plate drives the semi-circular clamping plate to rotate, so that the semi-circular clamping plate clamps the first PE pipe to achieve secondary fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the overall assembly of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the present invention before assembly.

[0020] Figure 3 It is a schematic structural diagram and a partially enlarged view of the first connector of the present invention.

[0021] Figure 4 It is a schematic structural diagram and a partially enlarged view of the connecting pipe mechanism of the present invention.

[0022] Figure 5 It is a front view and a partially enlarged view of the connecting pipe mechanism of the present invention.

[0023] Figure 6 It is Figure 5 a cross-sectional view and a partially enlarged view of

[0024] Figure 7 It is a schematic structural diagram of the connecting mechanism of the present invention.

[0025] Figure 8 It is a schematic structural diagram of the connecting mechanism of the present invention from another angle.

[0026] Figure 9 It is a schematic structural diagram of the connecting mechanism of the present invention from a bottom view angle.

[0027] Figure 10 It is a left view of the connecting mechanism of the present invention.

[0028] Figure 11 It is Figure 10 a cross-sectional view of

[0029] Figure 12 It is a schematic structural diagram of the threaded ring of the present invention.

[0030] Figure 13 It is a schematic position diagram and a partially enlarged view of the connecting mechanism and the second fixing mechanism of the present invention.

[0031] Figure 14Schematic diagram of the connection mechanism of the present invention.

[0032] Figure 15 Schematic diagram and partial enlarged structure diagram of the second fixing mechanism of the present invention.

[0033] Reference numerals in the attached drawings: 10. First connector; 101. First PE pipe; 102. Fixed shell; 103. External thread; 104. Card slot; 20. Second connector; 210. Connecting pipe mechanism; 211. Second PE pipe; 212. Spacer sleeve; 213. First clamping rod; 214. Push rod; 215. Push ring; 216. Air cylinder; 217. Airbag; 218. Electric push rod; 220. Connecting mechanism; 221. Connecting base; 2211. Convex block; 2212. Mounting hole; 222. Threaded ring; 223. Sliding clamping plate; 224. Linking rod; 225. Sliding block; 226. First spring; 227. Rotating baffle; 228. Second clamping rod; 229. Second spring; 240. Second fixing mechanism; 241. Pressing rod; 242. Third clamping rod; 243. Third spring; 244. Limiting plate; 245. Semi-circular clamping plate; 246. Limiting rod; 247. First limiting column; 248. Second limiting column. Detailed implementation manners

[0034] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "in", "out", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0036] Embodiment Reference Figure 1 and Figure 2, A PE pipe facilitating connection and fastening, comprising a first connector 10 and a second connector 20 connected by threads. By connecting the first connector 10 and the second connector 20 through threads, the quick and convenient connection of the PE pipe is realized, enabling quick connection in some power - deficient or sealed environments or underwater environments, and realizing the connection of the PE pipe in some special environments.

[0037] Reference Figure 3 , The first connector 10 includes a fixed shell 102, a first PE pipe 101 disposed in the round hole of the fixed shell 102, and an external thread 103 disposed on the outer surface of the fixed shell 102; specifically, four round holes are provided on the fixed shell 102, and four first PE pipes 101 are respectively installed in the four round holes. The four first PE pipes 101 are respectively and fixedly connected to the fixed shell 102 in a sealed manner. A clamping groove 104 is provided on the first PE pipe 101 in the direction of the second connector 20 of the fixed shell 102. The clamping groove 104 is used for clamping with the first clamping rod 213, thereby realizing the fixation of the second PE pipe 211.

[0038] Reference Figure 2 , The second connector 20 includes a connection mechanism 220, a connection pipe mechanism 210 disposed in the round hole of the connection mechanism 220, and a second fixing mechanism 240 disposed inside the connection mechanism 220; the connection mechanism 220 is threadedly connected to the external thread 103.

[0039] Reference Figure 4 and Figure 5 , The connection pipe mechanism 210 includes a second PE pipe 211. A push ring 215 and a spacer sleeve 212 are sleeved on the outer surface of the second PE pipe 211. A number of air cylinders 216 are provided between the push ring 215 and the spacer sleeve 212. One end of the air cylinder 216 is connected to the push ring 215, and the other end is connected to an airbag 217 through a pipe (reference Figure 6 ). The airbag 217 is installed between the spacer sleeve 212 and the second PE pipe 211. The first PE pipe 101 is slidably installed outside the second PE pipe 211. Specifically, when the first PE pipe 101 is slidably installed on the second PE pipe 211 (the outer diameter of one end of the second PE pipe 211 close to the first PE pipe 101 is smaller than the inner diameter of the first PE pipe 101, as shown in Figure 6 ), when the second PE pipe 211 is slidably installed outside the first PE pipe 101, the electric push rod 218 contracts to drive the push ring 215 to move towards the first clamping rod 213. Then, the push ring 215 drives the pull rod to compress the air cylinder 216, so that the gas in the air cylinder 216 enters the airbag 217. The airbag 217 expands, thereby sealing the connection between the second PE pipe 211 and the first PE pipe 101.

[0040] Specifically, a push rod 214 is provided on the push ring 215. One end of the push rod 214 away from the push ring 215 is rotatably connected to the first clamping rod 213. The middle of the first clamping rod 213 is rotatably installed on the spacer sleeve 212. A driving mechanism is provided between the push ring 215 and the spacer sleeve 212. When the electric push rod 218 contracts, it drives the push ring 215 to move towards the first clamping rod 213. The push ring 215 drives the push rod 214, and then pushes the first clamping rod 213 to rotate so that the first clamping rod 213 is close to the end of the first PE pipe 101 and is clamped into the card slot 104, thereby limiting the first PE pipe 101.

[0041] Further, referring to Figure 5 , the driving mechanism includes an electric push rod 218. The bottom of the cylinder body of the electric push rod 218 is fixedly connected to the spacer sleeve 212, and the end of its piston rod is fixedly connected to the push ring 215, providing power.

[0042] Referring to Figure 3 for the partial enlarged view, a card slot 104 is provided on the first PE pipe 101, and the card slot 104 is clamped with the first clamping rod 213, improving the connection strength.

[0043] Referring to Figures 7 - 9 , the connecting mechanism 220 includes a connecting base 221. One end of the connecting base 221 close to the first connector 10 is rotatably installed with a rotating baffle 227, and a threaded ring 222 is slidably installed on the rotating baffle 227; bumps 2211 are provided on the outer sides of both the threaded ring 222 and the connecting base 221; a limiting structure is installed on the outside of the bumps 2211. By rotating the threaded ring 222, the threaded ring 222 is threadedly connected to the external thread 103. Four mounting holes 2212 are provided on the connecting base 221, and the second PE pipe 211 of the connecting pipe mechanism 210 is fixedly installed on the mounting holes 2212.

[0044] Referring to Figure 13 and Figure 14 , the limiting structure includes a sliding block 225 slidably installed in the chute of the connecting base 221. A first spring 226 is provided in the chute of the connecting base 221. One end of the first spring 226 is fixedly connected to the connecting base 221, and the other end is fixedly connected to the sliding block 225. The sliding block 225 is connected to a linkage rod 224 through a rotating shaft. The other end of the linkage rod 224 is rotatably connected to a sliding clamping plate 223. The sliding clamping plate 223 is slidably installed on the bump 2211, and a locking mechanism is slidably installed on the sliding block 225. By manually pushing the sliding block 225, the sliding block 225 pushes the sliding clamping plate 223 to move away from the sliding block 225 through the linkage rod 224, so that the sliding clamping plate 223 leaves the bump 2211, and then by manually rotating the threaded ring 222 (refer to Figure 12 ), the threaded ring 222 is threadedly connected to the external thread 103.

[0045] Reference Figure 10 and Figure 11 ,The jamming mechanism includes a second clamping rod 228 sliding on the end face of the connecting base 221. A second spring 229 is provided at one end of the second clamping rod 228 away from the sliding block 225. The second spring 229 is fixedly connected to the groove on the end face of the connecting base 221. Before pushing the sliding block 225, the second clamping rod 228 is pulled upward to separate the second clamping rod 228 from the sliding block 225.

[0046] Reference Figure 15 ,The second fixing mechanism 240 includes a limiting plate 244 provided inside the connecting base 221, a pressing rod 241 slidably mounted on the limiting plate 244, and a semi-circular clamping plate 245 rotatably mounted on the pressing rod 241. Specifically, by manually pressing down the pressing rod 241, the pressing rod 241 slides in the limiting plate 244, and the semi-circular clamping plate 245 is driven by the limiting plate 244 to rotate, so that the semi-circular clamping plate 245 clamps the first PE pipe 101 to achieve secondary fixing.

[0047] Specifically, a limiting rod 246 is provided on the limiting plate 244, and a first limiting post 247 and a second limiting post 248 are arranged at intervals on the limiting rod 246; the semi-circular clamping plate 245 passes through the gap between the first limiting post 247 and the second limiting post 248. The semi-circular clamping plate 245 is limited. In another solution, adjacent first limiting post 247 and second limiting post 248 are provided on the limiting plate 244, the semi-circular clamping plate 245 passes through the gap between the first limiting post 247 and the second limiting post 248, the semi-circular clamping plate 245 is rotatably connected to the pressing rod 241, and the semi-circular clamping plate 245 contacts another second PE pipe 211, thereby realizing the fixing of the second PE pipe 211.

[0048] Furthermore, the second fixing mechanism 240 further includes a third clamping rod 242 slidably mounted inside the connecting base 221. A third spring 243 is sleeved on the third clamping rod 242. One end of the third spring 243 is fixedly connected to the third clamping rod 242, and the other end is fixedly connected to the connecting base 221. By manually pulling the third clamping rod 242, the third clamping rod 242 is clamped into the round hole of the pressing rod 241 under the pulling force of the third spring 243, thereby fixing the pressing rod 241.

[0049] Working principle, when in use, by connecting the first connector 10 and the second connector 20 (as Figures 2 to 1 shown), the rapid connection of the PE pipeline in some power-off or sealed environments or underwater environments is realized; First, align multiple first PE pipes 101 and multiple second PE pipes 211 in sequence, and then push the fixed shell 102 or push the second connector 20 to sleave the first PE pipe 101 outside the second PE pipe 211. After pushing to the appropriate position, contract the electric push rod 218 to drive the push ring 215 to move towards the first clamping rod 213, so that the push ring 215 drives the pull rod to compress the air cylinder 216. Then, the gas in the air cylinder 216 enters the airbag 217, and the airbag 217 expands, so that the airbag 217 seals the connection between the second PE pipe 211 and the first PE pipe 101. At the same time, the push ring 215 drives the push rod 214 to push the first clamping rod 213 to rotate, so that the end of the first clamping rod 213 near the first PE pipe 101 is clamped into the card slot 104, thereby limiting the first PE pipe 101, and completing the first limitation of the first PE pipe 101. Next, manually press down the pressing rod 241, so that the pressing rod 241 slides in the limiting plate 244. The limiting plate 244 drives the semi-circular clamping plate 245 to rotate, so that the semi-circular clamping plate 245 clamps the first PE pipe 101. At the same time, manually pull the third clamping rod 242 to make the third clamping rod 242 leave the pressing rod 241, and release the third clamping rod 242. Then, the third clamping rod 242 is clamped into the round hole of the pressing rod 241 under the pulling force of the third spring 243, thereby fixing the pressing rod 241.

[0050] Finally, pull up the second clamping rod 228 to separate the second clamping rod 228 from the sliding block 225. Manually push the sliding block 225, so that the sliding block 225 drives the sliding clamping plate 223 to move away from the sliding block 225 through the linkage rod 224, so that the sliding clamping plate 223 separates from the convex block 2211. Then, manually rotate the threaded ring 222 to make the threaded ring 222 threadedly connected with the external thread 103 to achieve the final sealed connection. Then release the sliding block 225, and the sliding block 225 rebounds under the action of the first spring 226, thereby driving the linkage rod 224 and the sliding clamping plate 223, so that the sliding clamping plate 223 clamps the threaded ring 222 and the convex block 2211 of the connection base 221, completing the fixation.

Claims

1. A PE pipe that is easy to connect and fasten, characterized in that: Comprising a first connector (10) and a second connector (20) connected by threads, The first connector (10) includes a fixed shell (102), a first PE pipe (101) disposed in the circular hole of the fixed shell (102), and an external thread (103) disposed on the outer surface of the fixed shell (102); The second connector (20) includes a connection mechanism (220), a connection pipe mechanism (210) disposed in the circular hole of the connection mechanism (220), and a second fixing mechanism (240) disposed inside the connection mechanism (220); the connection mechanism (220) is threadedly connected to the external thread (103); The connection pipe mechanism (210) includes a second PE pipe (211), a push ring (215) and a spacer sleeve (212) sleeved on the outer surface of the second PE pipe (211), a plurality of air cylinders (216) are disposed between the push ring (215) and the spacer sleeve (212), one end of the air cylinder (216) is connected to the push ring (215), the other end is connected to an airbag (217) through a pipeline, the airbag (217) is installed between the spacer sleeve (212) and the second PE pipe (211), and the first PE pipe (101) is slidably installed outside the second PE pipe (211).

2. A PE pipe that is easy to connect and fasten according to claim 1, characterized in that: A push rod (214) is disposed on the push ring (215), and one end of the push rod (214) away from the push ring (215) is rotatably connected to a first clamping rod (213), and the middle of the first clamping rod (213) is rotatably installed on the spacer sleeve (212), and a driving mechanism is disposed between the push ring (215) and the spacer sleeve (212).

3. A PE pipe that is easy to connect and fasten according to claim 2, characterized in that: The driving mechanism includes an electric push rod (218), the bottom of the cylinder body of the electric push rod (218) is fixedly connected to the spacer sleeve (212), and the end of its piston rod is fixedly connected to the push ring (215).

4. A PE pipe facilitating connection and fastening according to claim 2, characterized in that, A card slot (104) is disposed on the first PE pipe (101), and the card slot (104) is clamped with the first clamping rod (213).

5. A PE pipe that is convenient for connection and fastening according to claim 1, characterized in that, The connection mechanism (220) includes a connection base (221), a rotating baffle (227) is rotatably installed at one end of the connection base (221) close to the first connector (10), and a threaded ring (222) is slidably installed on the rotating baffle (227); bumps (2211) are disposed on the outer sides of the threaded ring (222) and the connection base (221); a limiting structure is installed on the outside of the bumps (2211).

6. A PE pipe that is easy to connect and fasten according to claim 5, characterized in that: The limiting structure includes a sliding block (225) slidably installed in the chute of the connection base (221), a first spring (226) is disposed in the chute of the connection base (221), one end of the first spring (226) is fixedly connected to the connection base (221), the other end is fixedly connected to the sliding block (225), the sliding block (225) is connected to a linkage rod (224) through a rotating shaft, the other end of the linkage rod (224) is rotatably connected to a sliding clamping plate (223), the sliding clamping plate (223) is slidably installed on the bump (2211), and a locking mechanism is slidably installed on the sliding block (225).

7. A PE pipe that is easy to connect and fasten according to claim 6, characterized in that: The locking mechanism includes a second locking rod (228) sliding on the end surface of the connecting base (221), and a second spring (229) is provided at one end of the second locking rod (228) away from the sliding block (225). The second spring (229) is fixedly connected to the groove on the end surface of the connecting base (221).

8. The PE pipe convenient for connection and fastening according to claim 1, characterized in that, The second fixing mechanism (240) comprises a limiting plate (244) arranged inside the connecting base (221), a pressing rod (241) slidably mounted on the limiting plate (244), and a semicircular clamping plate (245) rotatably mounted on the pressing rod (241).

9. A PE pipe facilitating connection and fastening according to claim 8, characterized in that, A limiting rod (246) is provided on the limiting plate (244), and a first limiting column (247) and a second limiting column (248) are provided on the limiting rod (246) at intervals; the semicircular clamping plate (245) passes through the gap between the first limiting column (247) and the second limiting column (248).

10. A PE pipe that is convenient for connection and fastening according to claim 9, characterized in that, The second fixing mechanism (240) further includes a third clamping rod (242) slidably mounted inside the connecting base (221), wherein a third spring (243) is sleeved on the third clamping rod (242), and one end of the third spring (243) is fixedly connected to the third clamping rod (242), and the other end is fixedly connected to the connecting base (221).

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