A plumbing coupling device

Abstract

The application discloses a kind of water supply and drainage pipeline connecting device, belong to connecting device technical field, including water storage cylinder, the both ends of water storage cylinder are connected and installed with connecting pipe, the outer surface of connecting pipe is fixedly installed with connecting cover, the inner wall of recess is provided with sliding assembly;In the application, sliding assembly is provided, connecting device is made to slide on the outer surface of straight pipe under the action of pulley, compared with the installation mode of traditional connecting device, the device does not need to be completely disassembled from pipe and then moved, effectively save the time when connecting device is disassembled, improve the installation efficiency between pipe and connecting device, pulley can effectively reduce the friction between connecting device and pipe during moving, further reduce the wear between connecting device and pipe, when connecting device does not need to move, pulley will be automatically received in the recess of connecting pipe, to effectively reduce the influence of pulley on the sealing between connecting device and pipe.

Description

Technical Field

[0001] This invention belongs to the field of connection device technology, and particularly relates to a water supply and drainage pipe connection device. Background Technology

[0002] Pipe connection devices are compact devices made of stainless steel and rubber components that achieve sealing and pressure bearing functions. No special treatment is required at the pipe ends during installation; simply place the connector on the two pipe ends to be connected, tighten the side bolts, and the locking teeth will clamp onto the pipe end surface for a fixed position. The sealing sleeve will adhere tightly to the pipe, achieving a secure and locked connection. Pipe connectors are categorized into different series based on their connection functions, including limit pipe connectors, compensation pipe connectors, double-clamp pipe connectors, pipe repair kits, and non-metallic pipe connectors. They are widely used in various industries such as petroleum, chemical, shipbuilding, offshore platforms, power, light industry, pharmaceuticals, food, construction, municipal engineering, environmental protection, and machinery equipment for connecting pipes of various materials.

[0003] Water supply and drainage pipeline engineering is a pipeline system engineering project for transporting and distributing industrial water supply and domestic drinking water, as well as collecting, transporting and discharging industrial wastewater, domestic sewage and rainwater. Water supply and drainage pipeline engineering is an integral part of the water supply and drainage system and plays an important role in the entire water supply and drainage system. It includes the pipeline system itself and various structures on the pipeline system. Its engineering investment accounts for the majority of the total investment in the water supply and drainage system engineering. During the laying of water supply and drainage pipelines, since the length of a single water supply and drainage pipeline is limited, pipeline connecting devices are needed to connect two water supply and drainage pipelines to achieve the required length.

[0004] Chinese patent discloses a water supply and drainage pipe connection device (CN219432691U), including a fixing device. A water pipe is fixedly connected to the inner side of the fixing device, and a tightening device is fixedly connected to the outer side of the fixing device. An interface sealing sleeve is fixedly connected between the water pipes, and a connecting sealing sleeve is fixedly connected to the outer side of the water pipe. A connecting cylinder is fixedly connected to the outer side of the connecting sealing sleeve, and a clamping device is fixedly connected to the outer side of the connecting cylinder. This utility model, by providing a connecting sealing sleeve, facilitates the sealing of the pipe. By setting multiple connecting sealing sleeves at the connection between the pipe and the connection device, the sealing performance is improved. At the same time, when some connecting sealing sleeves corrode, the others will still maintain a seal, thus extending their service life. The tightening device facilitates the fixing of the water pipes, ensuring that the two water pipes are firmly fixed and the sealing performance is better.

[0005] Chinese patent discloses a connection device for urban water supply and drainage pipes (CN116717641A), including an inlet pipe and an outlet pipe. A first protective pipe is provided on the right side of the inlet pipe, and a second protective pipe is provided on the left side of the outlet pipe. A first water storage pipe is provided on the right side of the first protective pipe, and a second water storage pipe is provided on the left side of the second protective pipe. A connection component is also provided, installed inside the first and second protective pipes respectively, for connecting the water supply and drainage pipes and increasing the strength and stability of the connection. It can accommodate pipes of different diameters for fixing. Since there are two sets of this integrated structure inside the first and second protective pipes respectively, it further improves the fixing and clamping of water supply and drainage pipes of different diameters, reduces the time required for pre-measuring pipe dimensions, and thus improves the efficiency of the project. Currently, most connection devices use bolts to connect the connection device to the water supply and drainage pipes. When the position of the connection device needs to be changed, it is usually necessary to remove all the bolts on the pipe connection device and move the connection device, which is time-consuming and laborious. Furthermore, it is necessary to realign the pipe with the connection device, affecting the installation efficiency of the connection device. Therefore, this water supply and drainage pipe connection device is provided. Summary of the Invention

[0006] The purpose of this invention is to solve the problems of current pipe connection devices, which require removing all the bolts on the pipe connection device before moving the connection device, which is time-consuming and laborious, and also require realigning the pipe and the connection device, thus affecting the installation efficiency of the connection device. Therefore, this invention proposes a water supply and drainage pipe connection device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a water supply and drainage pipe connection device, comprising a water storage cylinder, both ends of which are connected and installed with connecting pipes, a connecting cover fixedly installed on the outer surface of the connecting pipe, a rubber ring fixedly installed on the inner wall of the connecting pipe, a groove provided on the inner wall of the connecting pipe, a sliding component provided on the inner wall of the groove, a sealing component provided on the inner wall of the connecting cover, and a buffer component provided on the inner wall of the water storage cylinder; The sliding assembly includes a positioning rod and a rotating rod. One end of the positioning rod is rotatably connected to the inner wall of the connecting cover. A drive gear is fixedly installed on the outer surface of the positioning rod. The other end of the positioning rod is provided with a placement groove. A connecting rod is rotatably installed on the inner wall of the placement groove.

[0008] As a further description of the above technical solution: A rotating disk is fixedly installed on the outer surface of the connecting rod. A fixing block is fixedly installed on the side wall of the rotating disk. A connecting spring is fixedly installed on the side wall of the fixing block. A ratchet is fixedly installed at one end of the connecting spring. The side wall of the ratchet is rotatably connected to the side wall of the rotating disk through a rotating shaft.

[0009] As a further description of the above technical solution: The two ends of the rotating rod are rotatably connected to the inner walls of the two sides of the groove, respectively. A driven gear and a mounting plate are fixedly installed on the outer surface of the rotating rod, and a pulley is rotatably installed on the side wall of the mounting plate via a rotating shaft.

[0010] As a further description of the above technical solution: A sliding groove is provided on the inner wall of the shell cavity of the connecting pipe. A limit rod is fixedly installed on the inner side wall of the sliding groove. A movable rack is slidably installed on the outer surface of the limit rod. One end of the movable rack passes through the inside of the groove and is fixedly installed with a telescopic spring.

[0011] As a further description of the above technical solution: One end of the telescopic spring is fixedly connected to the other inner wall of the slide groove. A connecting strip is fixedly installed on the side wall of the movable rack. Another movable rack is fixedly installed at one end of the connecting strip. The movable rack is meshed with both the drive gear and the driven gear.

[0012] As a further description of the above technical solution: The sealing assembly includes a fixing strip with a groove on its outer surface. A fixing block 2 is fixedly installed at one end of the fixing strip, and the other end of the fixing strip passes through the interior of the fixing block 2. The fixing strip is fitted onto the outer surface of the rubber ring.

[0013] As a further description of the above technical solution: A self-locking threaded rod is rotatably installed on the inner wall of the fixing block. The self-locking threaded rod is engaged with the fixing strip. One end of the self-locking threaded rod extends to the outside of the side wall of the connecting cover and is fixedly installed with a knob. The other end of the self-locking threaded rod extends to the outside of the side wall of the fixing block.

[0014] As a further description of the above technical solution: The other end of the self-locking threaded rod is provided with a mounting groove, and a ratchet ring is fixedly installed on the inner side wall of the mounting groove. One end of the connecting rod is rotatably connected to the inner wall of the mounting groove, and the ratchet ring is engaged with the ratchet teeth.

[0015] As a further description of the above technical solution: The buffer assembly includes a fixed cover, the upper surface of which is fixedly connected to the inner wall of the water storage cylinder. A fixed rod is fixedly installed on the inner wall of the fixed cover. An installation sleeve is rotatably mounted on the outer surface of the fixed rod. A buffer plate is fixedly installed on the lower surface of the installation sleeve. A positioning groove is provided on the upper surface of the buffer plate.

[0016] As a further description of the above technical solution: A torsion spring is fitted on the outer surface of the fixing rod. One end of the torsion spring is fixedly connected to the inner wall of the positioning groove, and the other end of the torsion spring is fixedly connected to the inner wall of the fixing cover. A pointed cone is fixedly installed on the side wall of the buffer plate.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, by providing a sliding component, when the position of the connecting device needs to be changed, the self-locking threaded rod is first rotated in the reverse direction. At this time, the fixing strip will loosen, thereby loosening the pipe and the connecting pipe. When the self-locking threaded rod rotates in the reverse direction, the ratchet ring and ratchet are in a meshing state. Therefore, when the self-locking threaded rod reverses, it will drive the positioning rod to rotate. The positioning rod drives the drive gear. Since the drive gear is meshed with the moving rack, the moving rack will slide on the outer surface of the limiting rod. When the moving rack slides, it will drive another moving rack to move through the connecting strip. Under the action of the moving rack, the driven gear will drive the rotating rod to rotate in the groove, thereby driving the pulley to rotate through the mounting plate. At this time, the pulley moves out of the groove and contacts the outer surface of the water supply and drainage pipe. Then, under the action of the pulley, the connecting device moves from one end of the straight pipe. At the other end, the pulleys allow the connecting device to slide on the outer surface of the straight pipe. Compared to traditional installation methods, this device does not require complete removal from the pipe before movement, effectively saving time during disassembly and improving installation efficiency between the pipe and the connecting device. During movement, the pulleys effectively reduce friction between the connecting device and the pipe, further reducing wear. When the connecting device is not needed, the pulleys automatically retract into the groove of the connecting pipe, effectively reducing the impact of the pulleys on the sealing between the connecting device and the pipe. Pulleys are installed on both the upper and lower contact surfaces of the connecting device and the pipe, effectively improving the stability of the connecting device during sliding and preventing shaking during movement that could cause internal components to fall off or loosen.

[0018] 2. In this invention, by setting up a buffer assembly and a water storage tank, after the connecting device is installed with the water supply and drainage pipe, when water flows in the water supply and drainage pipe, the water will first flow into the water storage tank when passing through the connecting device, and then be buffered by the water storage tank before being discharged from another connecting pipe. When the water flow velocity is high, the water flow will impact the side wall of the buffer plate. At this time, the pointed cone on the side wall of the buffer plate will disperse the water flow to both sides. At the same time, the buffer plate impacted will rotate by installing the sleeve on the outer surface of the fixed rod. However, under the action of the torsion spring, the buffer plate will block the water flow to a certain extent. By using a pointed cone to disperse the water flow, and then using a buffer plate to block the water flow, the impact force of the water flow on the connecting device is effectively reduced. This prevents the excessively fast water flow from impacting the inner wall of the pipe and causing damage. At the same time, the increased cross-sectional area of ​​the pipe when the water flows into the water storage tank also reduces the impact force generated when the water flows through the connecting device, thereby increasing the service life of the pipe connecting device and enabling it to meet long-term use. Furthermore, reducing the impact force can prevent the connection between the connecting device and the pipe from becoming loose.

[0019] 3. In this invention, a sealing component is provided. A knob drives the self-locking threaded rod to rotate within the fixing block. As the self-locking threaded rod rotates, the fixing strip moves one end towards one side of the fixing block under the action of the slot. As the distance the fixing strip moves increases, it tightens the rubber ring and the water supply / drainage pipe together, thus fixing the water supply / drainage pipe and the connecting pipe. When the fixing strip is tightened, the self-locking threaded rod rotates clockwise. At this time, the ratchet ring and ratchet are not engaged, so the rotation of the self-locking threaded rod will not drive the positioning rod to rotate. The tightness between the rubber ring and the pipe is changed by altering the size of the fixing strip's opening. Compared to bolt fixing, this method is more convenient and improves the installation efficiency of the connecting device. Furthermore, the movement of the pulley can be controlled during the adjustment of the fixing strip, further improving the convenience of the connecting device. Since the rubber ring can deform, the pipe connecting device can be used to clamp water supply / drainage pipes of different diameters, reducing the need for prior pipe size measurement and further increasing the installation speed of the pipe connecting device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a water supply and drainage pipeline connection device.

[0021] Figure 2 This is an exploded structural diagram of the connecting pipe in a water supply and drainage pipeline connection device.

[0022] Figure 3 This is an exploded structural diagram of a self-locking threaded rod in a water supply and drainage pipe connection device.

[0023] Figure 4 In a water supply and drainage pipe connection device Figure 3 A magnified structural diagram at point B in the middle.

[0024] Figure 5 In a water supply and drainage pipe connection device Figure 2 A magnified structural diagram of point A in the middle.

[0025] Figure 6 This is a three-dimensional structural diagram of a connecting strip in a water supply and drainage pipe connection device.

[0026] Figure 7 In a water supply and drainage pipe connection device Figure 6 A magnified structural diagram at point C.

[0027] Figure 8 This is a schematic cross-sectional view of a water storage tank in a water supply and drainage pipe connection device.

[0028] Legend: 1. Water storage tank; 2. Connecting pipe; 3. Connecting cover; 4. Rubber ring; 5. Sealing assembly; 51. Fixing strip; 52. Fixing block one; 53. Self-locking threaded rod; 54. Knob; 55. Ratchet ring; 6. Sliding assembly; 61. Positioning rod; 62. Drive gear; 63. Placement groove; 64. Connecting rod; 65. Rotating disk; 66. Fixing block two; 67. Connecting spring; 68. Ratchet; 69. Rotating rod; 610. Driven gear; 611. Mounting plate; 612. Pulley; 613. Moving rack; 614. Connecting strip; 615. Limiting rod; 616. Telescopic spring; 7. Groove; 8. Buffer assembly; 81. Fixing cover; 82. Fixing rod; 83. Mounting sleeve; 84. Torsion spring; 85. Buffer plate; 86. Positioning groove; 87. Cone. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-8The present invention provides a technical solution: a water supply and drainage pipe connection device, including a water storage tank 1, both ends of the water storage tank 1 are connected and installed with connecting pipes 2, a connecting cover 3 is fixedly installed on the outer surface of the connecting pipe 2, a rubber ring 4 is fixedly installed on the inner wall of the connecting pipe 2, a groove 7 is provided on the inner wall of the connecting pipe 2, a sliding component 6 is provided on the inner wall of the groove 7, a sealing component 5 is provided on the inner wall of the connecting cover 3, and a buffer component 8 is provided on the inner wall of the water storage tank 1; The sliding assembly 6 includes a positioning rod 61 and a rotating rod 69. One end of the positioning rod 61 is rotatably connected to the inner wall of the connecting cover 3. A drive gear 62 is fixedly installed on the outer surface of the positioning rod 61. The other end of the positioning rod 61 is provided with a placement groove 63. A connecting rod 64 is rotatably installed on the inner wall of the placement groove 63. A rotating disk 65 is fixedly installed on the outer surface of the connecting rod 64. A fixing block 66 is fixedly installed on the side wall of the rotating disk 65. A connecting spring 67 is fixedly installed on the side wall of the fixing block 66. A ratchet 68 is fixedly installed at one end of the connecting spring 67. The side wall of the ratchet 68 is rotatably connected to the side wall of the rotating disk 65 through a rotating shaft. The two ends of the rotating rod 69 are rotatably connected to the inner walls of the two sides of the groove 7, respectively. A driven gear 610 and a mounting plate 611 are fixedly installed on the outer surface of 69. A pulley 612 is rotatably installed on the side wall of the mounting plate 611 via a rotating shaft. A sliding groove is provided on the inner wall of the cavity of the connecting pipe 2. A limit rod 615 is fixedly installed on the inner side wall of the sliding groove. A movable rack 613 is slidably installed on the outer surface of the limit rod 615. One end of the movable rack 613 passes through the interior of the groove 7 and is fixedly installed with a telescopic spring 616. One end of the telescopic spring 616 is fixedly connected to the other inner side wall of the sliding groove. A connecting strip 614 is fixedly installed on the side wall of the movable rack 613. Another movable rack 613 is fixedly installed on one end of the connecting strip 614. The movable rack 613 is meshed with both the drive gear 62 and the driven gear 610.

[0031] The specific implementation is as follows: When the position of the connecting device needs to be changed, the self-locking threaded rod 53 is first rotated in the reverse direction. At this time, the fixing strip 51 will loosen, thereby loosening the pipe from the connecting pipe 2. When the self-locking threaded rod 53 rotates in the reverse direction, the ratchet ring 55 and the ratchet 68 are engaged. Therefore, when the self-locking threaded rod 53 rotates in the reverse direction, it will drive the positioning rod 61 to rotate. The positioning rod 61 drives the drive gear 62. Since the drive gear 62 is engaged with the moving rack 613, the moving rack 613 will slide on the outer surface of the limiting rod 615. When the moving rack 613 slides, it will drive another moving rack 613 to move through the connecting strip 614. Under the action of the moving rack 613, the driven gear 610 will drive the rotating rod 69 to rotate in the groove 7, thereby driving the pulley 612 to rotate through the mounting plate 611. At this time, the pulley 612 moves out of the groove 7 and connects with the outer surface of the water supply and drainage pipe. The surface contacts the pipe, and then the connecting device moves from one end of the straight pipe to the other under the action of the pulley 612. It does not need to be completely disassembled from the pipe before moving, which can effectively save the time of disassembling the connecting device and improve the installation efficiency between the pipe and the connecting device. The pulley 612 can effectively reduce the friction between the connecting device and the pipe, and further reduce the wear between the connecting device and the pipe. When the pipe passes through the inside of the water storage tank 1, it will lift the buffer plate 85. At this time, the buffer plate 85 and the water storage tank 1 are in a horizontal state. After the connecting device moves to the appropriate position, the fixing bar 51 is fixed to the connecting pipe 2 and the water supply and drainage pipe by rotating the self-locking threaded rod 53. The connecting device and the pipe are equipped with pulleys 612 on both the upper and lower surfaces, which can effectively improve the stability of the connecting device when sliding and prevent the connecting device from shaking during the movement, causing the internal parts to fall off or loosen.

[0032] The sealing assembly 5 includes a fixing strip 51 with a slot on its outer surface. A fixing block 52 is fixedly installed at one end of the fixing strip 51, and the other end of the fixing strip 51 passes through the interior of the fixing block 52. The fixing strip 51 is fitted onto the outer surface of the rubber ring 4. A self-locking threaded rod 53 is rotatably installed on the inner wall of the fixing block 52. The self-locking threaded rod 53 is engaged with the fixing strip 51. One end of the self-locking threaded rod 53 extends to the outside of the side wall of the connecting cover 3 and is fixedly installed with a knob 54. The other end of the self-locking threaded rod 53 extends to the outside of the side wall of the fixing block 52. The other end of the self-locking threaded rod 53 is provided with an installation groove. A ratchet ring 55 is fixedly installed on the inner side wall of the installation groove. One end of the connecting rod 64 is rotatably connected to the inner wall of the installation groove, and the ratchet ring 55 is engaged with a ratchet 68.

[0033] The specific implementation is as follows: the water supply and drainage pipes are inserted into the connecting pipes 2 on both sides of the water storage tank 1, and then the self-locking threaded rod 53 is rotated in the fixing block 52 by the knob 54. Under the rotation of the self-locking threaded rod 53, the fixing strip 51 will move to one side of the fixing block 52 under the action of the slot. As the distance of the moving end of the fixing strip 51 increases, the fixing strip 51 will tighten the rubber ring 4 and the water supply and drainage pipe together, thereby fixing the water supply and drainage pipe and the connecting pipe 2. The operation is more convenient and the installation efficiency of the connection device is improved. When the fixing strip 51 is tightened, the self-locking threaded rod 53 rotates clockwise. At this time, the ratchet ring 55 and the ratchet 68 are not engaged. Therefore, when the self-locking threaded rod 53 rotates, it will not drive the positioning rod 61 to rotate, which improves the convenience of the connection device. Since the rubber ring 4 can deform, the pipe connection device can be used to fix and clamp water supply and drainage pipes of different diameters, thereby reducing the step of measuring the pipe size in advance.

[0034] The buffer assembly 8 includes a fixed cover 81, the upper surface of which is fixedly connected to the inner wall of the water storage cylinder 1. A fixed rod 82 is fixedly installed on the inner wall of the fixed cover 81. An installation sleeve 83 is rotatably mounted on the outer surface of the fixed rod 82. A buffer plate 85 is fixedly installed on the lower surface of the installation sleeve 83. A positioning groove 86 is provided on the upper surface of the buffer plate 85. A torsion spring 84 is fitted on the outer surface of the fixed rod 82. One end of the torsion spring 84 is fixedly connected to the inner wall of the positioning groove 86, and the other end of the torsion spring 84 is fixedly connected to the inner wall of the fixed cover 81. A pointed cone 87 is fixedly installed on the side wall of the buffer plate 85.

[0035] The specific implementation is as follows: After the connecting device is installed with the water supply and drainage pipe, when water flows in the water supply and drainage pipe, the water will first flow into the water storage tank 1 when passing through the connecting device, and then be buffered by the water storage tank 1 before being discharged from another connecting pipe 2. When the water flow velocity is high, the water flow will impact the side wall of the buffer plate 85. At this time, the pointed cone 87 on the side wall of the buffer plate 85 will disperse the water flow to both sides, effectively reducing the impact force of the water flow on the connecting device, and avoiding the impact of excessively fast water flow on the inner wall of the pipe, which could cause damage to the inner wall of the pipe. At the same time, the buffer plate 85, which is impacted, will rotate on the outer surface of the fixed rod 82 through the mounting sleeve 83. However, under the action of the torsion spring 84, the buffer plate 85 will block the water flow to a certain extent. When the water flow enters the water storage tank, the increase in the cross-sectional area of ​​the pipe can also reduce the impact force generated by the water flow when passing through the connecting device, improve the service life of the pipe connecting device, enable the pipe connecting device to meet long-term use, and reduce the impact force to prevent the connection between the connecting device and the pipe from becoming loose.

[0036] Working principle: The water supply and drainage pipes are inserted into the connecting pipes 2 on both sides of the water storage tank 1. Then, the self-locking threaded rod 53 is rotated within the fixing block 52 by the knob 54. As the self-locking threaded rod 53 rotates, the fixing bar 51 moves towards one side of the fixing block 52 under the action of the slot. As the distance moved by one end of the fixing bar 51 increases, it tightens the rubber ring 4 and the water supply and drainage pipe together, thus fixing the water supply and drainage pipe to the connecting pipe 2. When the fixing bar 51 is tightened, the self-locking threaded rod 53 rotates clockwise. At this time, the ratchet ring 55 and ratchet 68 are not engaged, so the self-locking threaded rod 53 will not rotate. The positioning rod 61 is rotated to connect the device to the water supply and drainage pipes. When water flows through the pipes, it first enters the water storage tank 1, then is buffered before exiting through another connecting pipe 2. When the water flow velocity is high, it impacts the side wall of the buffer plate 85. The pointed cone 87 on the side wall of the buffer plate 85 disperses the water flow to both sides. Simultaneously, the impacted buffer plate 85 rotates on the outer surface of the fixing rod 82 via the mounting sleeve 83. However, under the action of the torsion spring 84, the buffer plate 85 provides some obstruction to the water flow. When it is necessary to adjust the connection device... When changing the position, first rotate the self-locking threaded rod 53 in the reverse direction. At this time, the fixing strip 51 will loosen, thereby loosening the pipe from the connecting pipe 2. When the self-locking threaded rod 53 rotates in the reverse direction, the ratchet ring 55 and the ratchet 68 are engaged. Therefore, when the self-locking threaded rod 53 rotates in reverse, it will drive the positioning rod 61 to rotate. The positioning rod 61 drives the drive gear 62. Since the drive gear 62 is engaged with the moving rack 613, the moving rack 613 will slide on the outer surface of the limit rod 615. When the moving rack 613 slides, it will drive another moving rack 613 to move through the connecting strip 614. Under the action of the moving rack 613, the wheel 610 drives the rotating rod 69 to rotate in the groove 7, thereby driving the pulley 612 to rotate through the mounting plate 611. At this time, the pulley 612 moves out of the groove 7 and contacts the outer surface of the water supply and drainage pipe. Then, under the action of the pulley 612, the connecting device moves from one end of the straight pipe to the other end. When the pipe passes through the inside of the water storage tank 1, it will lift the buffer plate 85. At this time, the buffer plate 85 and the water storage tank 1 are in a horizontal state. After the connecting device moves to the appropriate position, the fixing bar 51 is fixed to the connecting pipe 2 and the water supply and drainage pipe by rotating the self-locking threaded rod 53.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water supply and drainage pipe connection device, comprising a water storage tank (1), wherein both ends of the water storage tank (1) are connected to a connecting pipe (2), a connecting cover (3) is fixedly installed on the outer surface of the connecting pipe (2), a rubber ring (4) is fixedly installed on the inner wall of the connecting pipe (2), and a groove (7) is provided on the inner wall of the connecting pipe (2), characterized in that: A sliding component (6) is provided on the inner wall of the groove (7), a sealing component (5) is provided on the inner wall of the connecting cover (3), and a buffer component (8) is provided on the inner wall of the water storage cylinder (1). The sliding assembly (6) includes a positioning rod (61) and a rotating rod (69). An mounting plate (611) is fixedly installed on the outer surface of the rotating rod (69). A pulley (612) is rotatably installed on the side wall of the mounting plate (611) via a rotating shaft. One end of the positioning rod (61) is rotatably connected to the inner side wall of the connecting cover (3). A drive gear (62) is fixedly installed on the outer surface of the positioning rod (61). A placement groove (63) is provided at the other end of the positioning rod (61). A connecting rod (64) is rotatably installed on the inner wall of the placement groove (63). A rotating disk (65) is fixedly installed on the outer surface of the connecting rod (64). A fixing block two (66) is fixedly installed on the side wall of the rotating disk (65). A connecting spring (67) is fixedly installed on the side wall of the fixing block two (66). A ratchet (68) is fixedly installed at one end of the connecting spring (67). The side wall of the ratchet (68) is rotatably connected to the side wall of the rotating disk (65) through a rotating shaft. The sealing assembly (5) includes a fixing strip (51), the outer surface of which is provided with a slot, a fixing block (52) is fixedly installed at one end of the fixing strip (51), the other end of the fixing strip (51) passes through the interior of the fixing block (52), a self-locking threaded rod (53) is rotatably installed on the inner wall of the fixing block (52), the self-locking threaded rod (53) is engaged with the fixing strip (51), one end of the self-locking threaded rod (53) extends to the outside of the side wall of the connecting cover (3) and a knob (54) is fixedly installed thereon, and the other end of the self-locking threaded rod (53) extends to the outside of the side wall of the fixing block (52); The other end of the self-locking threaded rod (53) is provided with an installation groove, and a ratchet ring (55) is fixedly installed on the inner side wall of the installation groove. One end of the connecting rod (64) is rotatably connected to the inner wall of the installation groove, and the ratchet ring (55) is engaged with the ratchet (68).

2. The water supply and drainage pipe connection device according to claim 1, characterized in that, The two ends of the rotating rod (69) are rotatably connected to the inner walls of the two sides of the groove (7), and a driven gear (610) is fixedly installed on the outer surface of the rotating rod (69).

3. A water supply and drainage pipe connection device according to claim 2, characterized in that, The inner wall of the shell cavity of the connecting pipe (2) is provided with a sliding groove, and a limiting rod (615) is fixedly installed on the inner side wall of the sliding groove. A movable rack (613) is slidably installed on the outer surface of the limiting rod (615). One end of the movable rack (613) passes through the inside of the groove (7) and is fixedly installed with a telescopic spring (616).

4. A water supply and drainage pipe connection device according to claim 3, characterized in that, One end of the telescopic spring (616) is fixedly connected to the other inner wall of the slide groove. A connecting strip (614) is fixedly installed on the side wall of the movable rack (613). Another movable rack (613) is fixedly installed at one end of the connecting strip (614). The movable rack (613) is meshed with both the drive gear (62) and the driven gear (610).

5. A water supply and drainage pipe connection device according to claim 4, characterized in that, The fixing strip (51) is fitted onto the outer surface of the rubber ring (4).

6. A water supply and drainage pipe connection device according to claim 5, characterized in that, The buffer assembly (8) includes a fixed cover (81), the upper surface of which is fixedly connected to the inner wall of the water storage cylinder (1), a fixed rod (82) is fixedly installed on the inner wall of the fixed cover (81), an installation sleeve (83) is rotatably mounted on the outer surface of the fixed rod (82), a buffer plate (85) is fixedly mounted on the lower surface of the installation sleeve (83), and a positioning groove (86) is provided on the upper surface of the buffer plate (85).

7. A water supply and drainage pipe connection device according to claim 6, characterized in that, A torsion spring (84) is fitted on the outer surface of the fixing rod (82). One end of the torsion spring (84) is fixedly connected to the inner wall of the positioning groove (86), and the other end of the torsion spring (84) is fixedly connected to the inner wall of the fixing cover (81). A pointed cone (87) is fixedly installed on the side wall of the buffer plate (85).

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