Quick connecting device for PVC-UH pipes

Abstract

The utility model discloses a PVC-UH pipe quick connecting device, which relates to the technical field of pipe connection and comprises a first pipe body and a second pipe body, a connecting pipe body is arranged between the first pipe body and the second pipe body, a connecting mechanism is arranged on the outer surface of the connecting pipe body and comprises an upper clamping ring, a lower clamping ring is hinged to the bottom end of one side of the upper clamping ring, and the lower clamping ring is hinged to the bottom end of the other side of the upper clamping ring. A mounting assembly connected with the lower clamping ring is arranged at the bottom end of the upper clamping ring, two fixing rings are fixedly arranged on the outer surface of the connecting pipe body, and the same screw rod is rotationally arranged on the two fixing rings. The rotating wheel is rotated to drive the screw rod to rotate, then the two screw blocks are driven to move oppositely along the screw rod, the two screw blocks drive the two upper clamping rings to move synchronously, then the two upper clamping rings and the two lower clamping rings drive the first pipe body and the second pipe body to move oppositely, and the first pipe body and the second pipe body are close to the connecting pipe body and are in butt joint. And the first pipe body and the second pipe body can be quickly connected without using a professional tool and screwing a plurality of bolts for operation.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and more specifically to a quick connection device for PVC-UH pipes. Background Technology

[0002] PVC pipe is rigid polyvinyl chloride pipe, which is made by hot-pressing polyvinyl chloride resin with stabilizers, lubricants and other additives. It was the earliest plastic pipe material to be developed and applied. UH pipe, or ultra-high molecular weight polyethylene engineering plastic (UHMW-PE) pipe technology, is becoming increasingly mature in my country. More and more projects are using this type of pipe, making it a new type of thermoplastic engineering plastic with moderate price and excellent performance.

[0003] In existing technologies, PVC pipes and UH pipes are installed by bolt connection. When installing, disassembling and maintaining PVC-UH pipes, special tools are required and multiple bolts need to be tightened, which makes the installation, disassembly and maintenance process of PVC-UH pipes quite troublesome. Utility Model Content

[0004] The purpose of this invention is to provide a quick connection device for PVC-UH pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a quick connection device for PVC-UH pipes, comprising a first pipe body and a second pipe body, with a connecting pipe body disposed between the first and second pipe bodies. A connecting mechanism is provided on the outer surface of the connecting pipe body, the connecting mechanism including an upper retaining ring, a lower retaining ring hinged to one bottom end of the upper retaining ring, and two sets of upper and lower retaining rings, each set sleeved on the outside of the first and second pipe bodies. An installation component connected to the lower retaining ring is provided at the bottom end of the upper retaining ring, the installation component including an upper U-shaped block and a lower U-shaped block. The upper U-shaped block and the lower U-shaped block are respectively fixedly mounted at one end of the upper retaining ring and the lower retaining ring. A T-shaped rod is rotatably mounted on the inner side of the upper U-shaped block. A sleeve is fixedly mounted at the bottom end of the T-shaped rod. Two springs are fixedly mounted on the inner side of the sleeve. A post is fixedly mounted at one end of each of the two springs. A groove adapted to the two posts is opened on the inner side of the lower U-shaped block. Two fixing rings are fixedly mounted on the outer surface of the connecting pipe. The same screw is rotatably mounted on the two fixing rings. A screw block is fixedly mounted on the top of each of the two upper retaining rings. The screw is threadedly connected to the two screw blocks.

[0006] As a further improvement to this technical solution, connecting grooves are provided at both ends of the connecting pipe body, and sealing rings are provided in the connecting grooves at both ends of the connecting pipe body. The first pipe body and the second pipe body extend into the two connecting grooves respectively and abut against the sealing rings.

[0007] As a further improvement to this technical solution, a lever is fixedly provided on the insert post, and a through groove is provided on the sleeve for the lever to slide through.

[0008] As a further improvement to this technical solution, a limiting block is fixedly provided on the top of each of the two upper retaining rings, and a limiting rod is fixedly provided on each of the two fixed rings. The limiting block is provided with a through hole for the limiting rod to slide through.

[0009] As a further improvement to this technical solution, the screw has two sections of threads with opposite directions at both ends, and a rotating wheel is fixedly installed at the middle position of the screw.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. By setting up the installation components, the lower retaining ring is flipped upward to close with the upper retaining ring. The elastic force of the two springs drives the two inserts to extend out of the sleeve and insert into the retaining grooves respectively, thereby fixing the lower retaining ring and the upper retaining ring. The first tube body and the second tube body are fixed by the two sets of upper and lower retaining rings respectively, and the first tube body and the second tube body are quickly positioned respectively.

[0012] 2. By setting up a connecting mechanism, the rotating wheel drives the screw to rotate, which in turn drives two screw blocks to move towards each other along the screw. The two screw blocks drive two upper retaining rings to move synchronously, and then the two sets of upper and lower retaining rings drive the first and second pipe bodies to move towards each other, so that the first and second pipe bodies approach the connecting pipe body and are connected. Without the need to use special tools and tighten multiple bolts, the first and second pipe bodies can be quickly connected. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall cross-section of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection mechanism of the utility model;

[0016] Figure 4 This is a schematic diagram of the upper and lower retaining rings of the utility model.

[0017] Figure 5 For utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. First tube body; 2. Second tube body; 3. Connecting tube body; 4. Connecting mechanism; 41. Upper retaining ring; 42. Lower retaining ring; 431. Upper U-shaped block; 432. Lower U-shaped block; 433. T-shaped rod; 434. Sleeve; 435. Spring; 436. Insert post; 437. Slot; 438. Pulling block; 44. Fixing ring; 45. Screw; 46. Screw block; 47. Limiting block; 48. Limiting rod; 49. Rotating wheel; 5. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Please see Figures 1-5As shown, this utility model provides a quick connection device for PVC-UH pipes, including a first pipe body 1 and a second pipe body 2. A connecting pipe body 3 is provided between the first pipe body 1 and the second pipe body 2. A connecting mechanism 4 is provided on the outer surface of the connecting pipe body 3. The first pipe body 1 and the second pipe body 2 are connected by the connecting pipe body 3, and the first pipe body 1 and the second pipe body 2 are securely connected to the connecting pipe body 3 by the connecting mechanism 4. The connecting mechanism 4 includes an upper retaining ring 41, and a lower retaining ring 42 is hinged to one bottom end of the upper retaining ring 41. Two sets of retaining rings 41 and 42 are provided. The two sets of upper retaining rings 41 and lower retaining rings 42 are respectively fitted onto the outside of the first tube body 1 and the second tube body 2. The lower retaining ring 42 is flipped downwards to open, allowing the two upper retaining rings 41 to be fitted onto the first tube body 1 and the second tube body 2 respectively. The bottom end of the upper retaining ring 41 is provided with an installation component connected to the lower retaining ring 42. The installation component includes an upper U-shaped block 431 and a lower U-shaped block 432, which are respectively fixedly mounted on the upper retaining ring 41 and the lower retaining ring 42. At the upper U-shaped block 431, a T-shaped rod 433 is rotatably mounted on the inner side. A sleeve 434 is fixedly mounted at the bottom end of the T-shaped rod 433. Two springs 435 are fixedly mounted on the inner side of the sleeve 434. A pin 436 is fixedly mounted at one end of each spring 435. A slot 437 that matches the two pins 436 is opened on the inner side of the lower U-shaped block 432. A lever 438 is fixedly mounted on the pin 436. A through groove for the lever 438 to slide through is opened on the sleeve 434. Pulling the two levers 438 towards the middle... The two inserts 436 are retracted into the sleeve 434, and then the lower retaining ring 42 is flipped upward to close with the upper retaining ring 41. At this time, the sleeve 434 is located inside the lower U-shaped block 432. The two levers 438 are released, and the elastic force of the two springs 435 drives the two inserts 436 to extend out of the sleeve 434 and insert into the retaining grooves 437 respectively, thereby fixing the lower retaining ring 42 and the upper retaining ring 41. The first tube 1 and the second tube 2 are fixed by the two sets of upper retaining rings 41 and lower retaining rings 42 respectively.

[0023] Two retaining rings 44 are fixedly installed on the outer surface of the connecting pipe body 3. The same screw 45 is rotatably installed on the two retaining rings 44. A screw block 46 is fixedly installed on the top of each of the two upper retaining rings 41. The two ends of the screw 45 are provided with two sections of threads with opposite directions. A rotating wheel 49 is fixedly installed at the middle position of the screw 45. The screw 45 is threadedly connected to the two screw blocks 46. A limit block 47 is fixedly installed on the top of each of the two upper retaining rings 41. A limit rod 48 is fixedly installed on each of the two retaining rings 44. The limit block 47 has an opening There is a through hole for the sliding passage of the limiting rod 48. By rotating the rotating wheel 49, the screw 45 is driven to rotate, which in turn drives the two screw blocks 46 to move towards each other along the screw 45. The two screw blocks 46 drive the two upper retaining rings 41 to move synchronously. Then, through the two sets of upper retaining rings 41 and lower retaining rings 42, the first tube 1 and the second tube 2 are driven to move towards each other, so that the first tube 1 and the second tube 2 approach the connecting tube 3 and dock. The upper retaining rings 41 are limited by the sliding cooperation between the limiting block 47 and the limiting rod 48.

[0024] Both ends of the connecting pipe 3 are provided with connecting grooves, and sealing rings 5 ​​are provided in the connecting grooves at both ends of the connecting pipe 3. The first pipe 1 and the second pipe 2 extend into the two connecting grooves respectively and abut against the sealing rings 5. By making the first pipe 1 and the second pipe 2 abut against the sealing rings 5 ​​respectively, the connection between the first pipe 1, the second pipe 2 and the connecting pipe 3 is sealed by the sealing rings 5.

[0025] The specific working principle of this utility model is as follows: The first tube 1 and the second tube 2 are respectively inserted into the connecting grooves at both ends of the connecting tube 3. The lower retaining ring 42 is flipped downwards to open, and the two upper retaining rings 41 are respectively fitted onto the first tube 1 and the second tube 2. The two levers 438 are pulled towards the center, causing the two inserts 436 to be retracted into the sleeve 434. Then, the lower retaining ring 42 is flipped upwards to close with the upper retaining ring 41. At this time, the sleeve 434 is located inside the lower U-shaped block 432. The two levers 438 are released, and the elastic force of the two springs 435 causes the two inserts 436 to extend out of the sleeve 434 and be inserted into the retaining grooves 437 respectively. The lower retaining ring 42 and the upper retaining ring 41 are fixed together. The first tube 1 and the second tube 2 are fixed by the two sets of upper retaining rings 41 and lower retaining rings 42 respectively. The rotating wheel 49 drives the screw 45 to rotate, which in turn drives the two screw blocks 46 to move towards each other along the screw 45. The two screw blocks 46 drive the two upper retaining rings 41 to move synchronously. In turn, the two sets of upper retaining rings 41 and lower retaining rings 42 drive the first tube 1 and the second tube 2 to move towards each other, so that the first tube 1 and the second tube 2 move closer to the connecting tube 3 and are connected. Without the need to use special tools and tighten multiple bolts, the first tube 1 and the second tube 2 can be quickly connected.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick connection device for PVC-UH pipes, comprising a first pipe body (1) and a second pipe body (2), wherein a connecting pipe body (3) is provided between the first pipe body (1) and the second pipe body (2), characterized in that: A connecting mechanism (4) is provided on the outer surface of the connecting tube body (3). The connecting mechanism (4) includes an upper retaining ring (41). A lower retaining ring (42) is hinged to one bottom end of the upper retaining ring (41). Two sets of upper retaining rings (41) and lower retaining rings (42) are provided. The two sets of upper retaining rings (41) and lower retaining rings (42) are respectively sleeved on the outside of the first tube body (1) and the second tube body (2). An installation component connected to the lower retaining ring (42) is provided at the bottom end of the upper retaining ring (41). The installation component includes an upper U-shaped block (431) and a lower U-shaped block (432). The upper U-shaped block (431) and the lower U-shaped block (432) are respectively fixedly installed at one end of the upper retaining ring (41) and the lower retaining ring (42). A T-shaped rod (433) is rotatably provided on the inner side of the block (431). A sleeve (434) is fixedly provided at the bottom end of the T-shaped rod (433). Two springs (435) are fixedly provided on the inner side of the sleeve (434). A plug (436) is fixedly provided at one end of each of the two springs (435). A slot (437) adapted to the two plugs (436) is opened on the inner side of the lower U-shaped block (432). Two fixing rings (44) are fixedly provided on the outer surface of the connecting tube body (3). The same screw (45) is rotatably provided on the two fixing rings (44). A screw block (46) is fixedly provided on the top of each of the two upper retaining rings (41). The screw (45) is threadedly connected to the two screw blocks (46).

2. The quick connection device for PVC-UH pipes according to claim 1, characterized in that: The connecting pipe (3) has connecting grooves at both ends, and sealing rings (5) are provided in the connecting grooves at both ends of the connecting pipe (3). The first pipe (1) and the second pipe (2) extend into the two connecting grooves respectively and abut against the sealing rings (5).

3. The quick connection device for PVC-UH pipes according to claim 1, characterized in that: A lever (438) is fixedly installed on the insert (436), and a through groove is provided on the sleeve (434) for the lever (438) to slide through.

4. The quick connection device for PVC-UH pipes according to claim 1, characterized in that: Each of the two upper retaining rings (41) is fixedly provided with a limiting block (47) at its top, and each of the two fixed rings (44) is fixedly provided with a limiting rod (48). The limiting block (47) is provided with a through hole for the limiting rod (48) to slide through.

5. The quick connection device for PVC-UH pipes according to claim 1, characterized in that: The screw (45) has two sections of threads with opposite directions at both ends, and a rotating wheel (49) is fixedly installed at the middle position of the screw (45).

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