A water supply and drainage pipeline prefabricated connecting device for fabricated buildings

Abstract

This invention discloses a prefabricated connection device for water supply and drainage pipes in prefabricated buildings, including an installation plate. A connecting seat is provided on the front of the installation plate, and several connecting shafts are disposed within the installation plate. Locking components are provided on the connecting shafts within the installation plate. The ends of the connecting shafts pass through the connecting seats to reach the inner side of the connecting seats, and a driving component is provided on the connecting shafts. This invention uses a winding steel wire rope to drive U-shaped plates to converge and compress the water supply and drainage pipes, causing the sealing strip to adhere to the U-shaped plates. It can accommodate pipes of various diameters. When fixing the pipe connection, during contraction, the pressure inside the U-shaped inflation chamber increases due to the pressure applied by the flange or threaded pipe protrusion at the connection. This causes the moving plug to approach and compress a wedge-shaped pressure block, which in turn moves downward, pushing the sealing strip to compress the side of the flange or threaded pipe protrusion at the connection, thus enhancing the sealing performance of the connection.

Description

Technical Field

[0001] This invention relates to the field of water supply and drainage pipeline installation technology, specifically to a prefabricated connection device for water supply and drainage pipelines in prefabricated buildings. Background Technology

[0002] The water supply and drainage pipes in prefabricated buildings are components where prefabricated pipes are installed outside the structural walls and supported and connected by prefabricated connecting devices. During installation, the water supply and drainage pipes in prefabricated buildings are generally fixed using prefabricated clamps. However, because the pipes are prefabricated, manufacturing tolerances can lead to insecure fixing of the pipes and clamps. Furthermore, since the pipe length is fixed, when fixing at specific points using pre-drilled bolt holes, the clamps may be positioned precisely at the pipe connection point. Because flanges or threaded pipes are used at the connection, this can cause a protrusion at the connection, preventing the clamps from securing properly. This necessitates secondary drilling for fixing, significantly limiting their usability. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated connection device for water supply and drainage pipes in prefabricated buildings, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated connection device for water supply and drainage pipes in prefabricated buildings, comprising an installation plate, a connecting seat on the front side of the installation plate, a plurality of connecting shafts inside the installation plate, a locking assembly on the connecting shafts inside the installation plate, the end of the connecting shaft passing through the connecting seat to the inner side of the connecting seat, and a driving assembly on the connecting shaft, a transmission assembly on the outer side of the driving assembly on the connecting shaft, the transmission assembly including a drive gear, a transmission shaft and a reduction gear, a tightening and reducing assembly on the transmission shaft, the tightening and reducing assembly including a winding wheel, a wire rope and a plurality of guide posts, U-shaped plates on the plurality of guide posts, a pressing assembly on the U-shaped plates, a sealing strip on the inner side of the plurality of U-shaped plates, and a fixing hook on the side of the connecting seat.

[0005] Preferably, the mounting plate has a cavity, the connecting shaft is rotatably disposed within the cavity, and the locking assembly includes a pressing plate, several limiting rods, and several magnetic blocks. The pressing plate is sleeved on the connecting shaft, the limiting rods are disposed on the pressing plate, and the magnetic blocks are disposed on the outside of the pressing plate within the cavity. The pressing plate has an arc-shaped inclined surface near the limiting rods, and the magnetic blocks have a beveled surface adapted to the arc-shaped inclined surface.

[0006] Preferably, one of the connecting shafts is threaded and is threadedly connected to the extrusion plate, while the remaining connecting shafts are slidably connected to the extrusion plate, and the magnetic block is provided with a plurality of balls.

[0007] Preferably, the mounting plate is provided with anchor holes, and an anchor post is provided in the anchor holes. The anchor post is provided with a limiting hole that matches the magnetic block, and the magnetic block is slidably connected to the mounting plate.

[0008] Preferably, the connecting seat has a receiving cavity, the connecting shaft passes through the outer wall of the receiving cavity and is rotatably connected to the connecting seat, the driving assembly includes a worm gear and a worm, the worm gear is disposed on the connecting shaft, the worm is disposed in the receiving cavity, the worm gear meshes with the worm, two adjacent worms are fixedly connected, the worm passes through the connecting seat and is rotatably connected to the connecting seat, and a handwheel is disposed on the worm.

[0009] Preferably, the drive gear is mounted on the connecting shaft, the transmission shaft is rotatably disposed within the receiving cavity, the reduction gear is disposed on the transmission shaft, and the reduction gear meshes with the drive gear.

[0010] Preferably, the winding wheel is mounted on the drive shaft, the wire rope is mounted on the winding wheel, a plurality of guide posts are slidably mounted on the winding wheel, the wire rope passes through the connecting seat and is slidably connected to the connecting seat, a fixing hook is provided on the side of the connecting seat away from the winding wheel, and the outermost U-shaped plate and the side of the connecting seat near the fixing hook are respectively fixedly connected to the sealing strip.

[0011] Preferably, a stop is provided on the outermost guide post, and a connecting ring is provided at the end of the wire rope.

[0012] Preferably, the clamping assembly includes a pressure plunger, two movable plungers, and two wedge-shaped pressure blocks. A U-shaped inflation chamber is provided inside the U-shaped plate. The pressure plunger is disposed inside the U-shaped inflation chamber. The two movable plungers are respectively disposed on the upper and lower sides of the U-shaped inflation chamber. The wedge-shaped pressure blocks are disposed on the outer side of the movable plungers on the U-shaped plate. The movable plungers and the wedge-shaped pressure blocks are provided with arc-shaped cross-sections on their respective sides. The pressure plunger passes through the U-shaped plate and is slidably connected to the U-shaped plate. The wedge-shaped pressure blocks pass through the U-shaped plate and are slidably connected to the U-shaped plate. A limit block is provided on the wedge-shaped pressure block.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This invention utilizes the combined use of a tightening reducer assembly, a U-shaped plate, a pressing assembly, a sealing strip, a fixing hook, and a connecting ring. The sealing strip is made of elastic rubber and can be deformed by a steel wire rope. The winding of the steel wire rope causes the U-shaped plate to close and squeeze the water supply and drainage pipe, so that the sealing strip and the U-shaped plate fit together on the water supply and drainage pipe, which can adapt to pipes of various diameters.

[0015] 2. In addition, the present invention also utilizes the U-shaped plate, the clamping assembly, and the sealing strip in combination to fix the pipe connection. While contracting, the pressure of the U-shaped air chamber is increased by the pressure of the flange or threaded pipe protrusion at the connection, which in turn squeezes the pressure plug. This causes the moving plug to approach and squeeze the wedge-shaped pressure block, which in turn moves down and pushes the sealing strip to squeeze the side of the flange or threaded pipe protrusion at the connection, thus resealing and strengthening the sealing performance of the connection.

[0016] 3. This invention also utilizes the connecting shaft, locking assembly, driving assembly, and anchor column for installation and disassembly. Forward rotation of the worm gear causes the worm wheel and connecting shaft to rotate, moving the extrusion plate downwards and the extrusion magnet to move to both sides, locking with the pre-installed anchor column. Simultaneously, the wire rope is wound up, allowing installation on the mounting plate. Continuing to rotate the worm wheel until the U-shaped plate secures the pipe, and reverse rotation of the worm gear releases the wire rope from the pipe, allowing disassembly. Continuing to rotate, the magnetic force between the extrusion plate and the magnet separates the magnet from the anchor column, allowing for replacement of the entire unit. Disassembly and assembly are relatively convenient, requiring only the turning of the handwheel. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view three-dimensional structure of the present invention;

[0019] Figure 3 This is a first-view perspective three-dimensional structural diagram of the connector in this invention;

[0020] Figure 4 This is a two-dimensional structural diagram of the connector in this invention from a second perspective;

[0021] Figure 5 This is a three-dimensional structural diagram of the mounting plate in this invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the U-shaped plate in this invention.

[0023] In the diagram: 1. Mounting plate; 2. Connecting seat; 3. Connecting shaft; 4. Locking assembly; 41. Pressing plate; 42. Limiting rod; 43. Magnetic block; 5. Drive assembly; 51. Worm gear; 52. Worm; 6. Transmission assembly; 61. Drive gear; 62. Drive shaft; 63. Reduction gear; 7. Tightening and reducing assembly; 71. Rewinding wheel; 72. Wire rope; 73. Guide post; 8. U-shaped plate; 9. Pressing assembly; 91. Pressure plunger; 92. Moving plunger; 93. Wedge-shaped pressure block; 10. Sealing strip; 11. Ball bearing; 12. Anchor post; 13. Limiting hole; 14. Stop block; 15. Connecting ring; 16. Handwheel; 17. Fixing hook; 18. Limiting block. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This invention provides a technical solution: a prefabricated connection device for water supply and drainage pipes in prefabricated buildings, including an installation plate 1, a connecting seat 2 installed on the front of the installation plate 1, a plurality of connecting shafts 3 installed inside the installation plate 1, a locking component 4 installed on the connecting shafts 3 inside the installation plate 1, the end of the connecting shaft 3 passing through the connecting seat 2 to the inner side of the connecting seat 2, and a driving component 5 installed on the connecting shaft 3, a transmission component 6 installed on the outer side of the driving component 5 on the connecting shaft 3, the transmission component 6 including a drive gear 61, a transmission shaft 62 and a reduction gear 63, a tightening and reducing component 7 installed on the transmission shaft 62, the tightening and reducing component 7 including a winding wheel 71, a wire rope 72 and a plurality of guide posts 73, a U-shaped plate 8 for fixing water supply and drainage pipes installed on the plurality of guide posts 73, a pressing component 9 installed on the U-shaped plate 8, a sealing strip 10 installed on the inner side of the plurality of U-shaped plates 8, the sealing strip 10 being made of elastic rubber material, and a fixing hook 17 installed on the side of the connecting seat 2;

[0026] The mounting plate 1 has a cavity, and the connecting shaft 3 is mounted in the cavity via bearings. The locking assembly 4 includes a pressing plate 41, several limiting rods 42, and several magnetic blocks 43. The pressing plate 41 is sleeved on the connecting shaft 3, the limiting rods 42 are mounted on the pressing plate 41, and the magnetic blocks 43 are mounted on the outside of the pressing plate 41 inside the cavity. The pressing plate 41 has an arc-shaped bevel near the limiting rods 42, and the magnetic blocks 43 have a beveled surface that matches the arc-shaped bevel. One connecting shaft 3 is threaded and is threaded to the pressing plate 41, while the remaining connecting shafts 3 are slidably connected to the pressing plate 41. Several ball bearings are mounted on the magnetic blocks 43, and the magnetic blocks 43 are made of magnetic material. To facilitate the movement of the magnetic block 43, the mounting plate 1 has anchor holes, in which anchor columns 12 pre-installed on the prefabricated building wall are installed. The anchor columns 12 have limiting holes 13 that match the magnetic block 43, allowing the magnetic block 43 to slide against the mounting plate 1. The connecting seat 2 has a receiving cavity, through which the connecting shaft 3 passes and is rotatably connected to the connecting seat 2. The drive assembly 5 includes a worm gear 51 and a worm 52. The worm gear 51 is mounted on the connecting shaft 3, and the worm 52 is installed in the receiving cavity. The worm gear 51 meshes with the worm 52, and two adjacent worms 52 are fixedly connected. The worm 52 passes through the connecting seat 2 and is connected to the connecting seat 2 via a bearing. A handwheel is mounted on the worm 52. 16; The drive gear 61 is mounted on the connecting shaft 3, the transmission shaft 62 is mounted in the receiving cavity via bearings, the reduction gear 63 is mounted on the transmission shaft 62, and the reduction gear 63 meshes with the drive gear 61; the take-up reel 71 is fixedly mounted on the transmission shaft 62, the wire rope 72 is mounted on the take-up reel 71, several guide posts 73 are slidably mounted on the take-up reel 71, the wire rope 72 passes through the connecting seat 2 and is slidably connected to the connecting seat 2, a fixing hook 17 is installed on the side of the connecting seat 2 away from the take-up reel 71, the outermost U-shaped plate 8 and the side of the connecting seat 2 near the fixing hook 17 are respectively bonded to the sealing strip 10; a stop block 14 is installed on the outermost guide post 73. The end of the wire rope 72 is equipped with a connecting ring 15; the clamping assembly 9 includes a pressure plunger 91, two movable plungers 92 and two wedge-shaped pressure blocks 93. A U-shaped inflation chamber is opened in the U-shaped plate 8. The pressure plunger 91 is installed in the U-shaped inflation chamber. The two movable plungers 92 are respectively installed on the upper and lower sides of the U-shaped inflation chamber. The wedge-shaped pressure blocks 93 are installed on the outside of the movable plungers 92 on the U-shaped plate 8. The movable plungers 92 and the wedge-shaped pressure blocks 93 are respectively provided with arc-shaped cut surfaces on the sides that are close to each other. The pressure plunger 91 passes through the U-shaped plate 8 and is slidably connected to the U-shaped plate 8. The wedge-shaped pressure blocks 93 pass through the U-shaped plate 8 and are slidably connected to the U-shaped plate 8. A limit block 18 is installed on the wedge-shaped pressure blocks 93.

[0027] Working principle: When using this invention, align the mounting plate 1 with the pre-reserved anchor post 12 on the wall, manually turn the fixing hook 17 forward to rotate the worm gear 52, causing the worm wheel 51 and connecting shaft 3 to rotate, causing the pressing plate 41 to move down, and the pressing magnetic block 43 to move to both sides, aligning with the pre-reserved limiting hole 13 to lock the anchor post 12. At the same time, the connecting shaft 3 drives the drive gear 61 to rotate, causing the transmission shafts 62 and 33 to rotate, causing the winding wheel 71 to wind up the steel wire rope 72, thus installing it on the mounting plate 1. Place the water supply and drainage pipe on the connecting seat 2, and pass the steel wire rope 72 around the fixing hook 17 so that the limiting block 18 is fitted onto the last guide post 73. Continue to turn the handwheel 16 to wind up the steel wire rope 72, causing the U-shaped plates 8 to close together and squeeze the water supply and drainage pipe, so that the sealing strip 10 and the U-shaped plates 8 are in contact with the water supply and drainage pipe. On the pipeline, it can adapt to various pipe diameters until the U-shaped plate 8 fixes the pipe. Twisting the worm gear 52 in the reverse direction releases the steel wire rope 72 from the pipe lock, allowing the pipe to be disassembled. Continuing to twist, the magnetic force of the squeezing plate 41 and the magnetic block 43 attracts the magnetic block 43, causing it to separate from the anchor column 12, allowing the entire assembly to be replaced. Simply turn the handwheel 16; disassembly and assembly are relatively convenient. When fixing the pipe connection, while contracting, the pressure of the U-shaped air chamber increases by squeezing the protruding part of the flange or threaded pipe at the connection. This causes the moving plug 92 to approach and squeeze the wedge-shaped pressure block 93, causing the wedge-shaped pressure block 93 to move down and push the sealing strip 10 to squeeze the side of the flange or threaded pipe protrusion at the connection, thus resealing and strengthening the sealing of the connection. It has the advantages of being easy to use and having good performance.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated connection device for water supply and drainage pipes in prefabricated buildings, comprising an mounting plate (1), characterized in that: The mounting plate (1) has a connecting seat (2) on its front side. Several connecting shafts (3) are located inside the mounting plate (1). Locking components (4) are installed on the connecting shafts (3) inside the mounting plate (1). The end of the connecting shaft (3) passes through the connecting seat (2) and reaches the inner side of the connecting seat (2). A driving component (5) is installed on the connecting shaft (3). A transmission component (6) is installed on the outer side of the driving component (5) on the connecting shaft (3). The transmission component (6) includes a drive gear (61), a transmission shaft (62), and a reduction gear (63). A tightening and reducing component (7) is installed on the transmission shaft (62). The tightening and reducing assembly (7) includes a winding wheel (71), a wire rope (72), and several guide posts (73). A U-shaped plate (8) is provided on the several guide posts (73). A pressing assembly (9) is provided on the U-shaped plate (8). A sealing strip (10) is provided on the inner side of the several U-shaped plates (8). A fixing hook (17) is provided on the side of the connecting seat (2). The driving gear (61) is mounted on the connecting shaft (3). The transmission shaft (62) is rotatably disposed in the receiving cavity. The reduction gear (63) is disposed on the transmission shaft (62). The reduction gear (63) meshes with the driving gear (61). The winding wheel (71) is mounted on the drive shaft (62), and the wire rope (72) is mounted on the winding wheel (71). The wire rope (72) passes through the connecting seat (2) and is slidably connected to the connecting seat (2). A fixing hook (17) is provided on the side of the connecting seat (2) away from the winding wheel (71). The U-shaped plate (8) closest to the fixing hook (17) and the side of the connecting seat (2) closest to the fixing hook (17) are respectively fixedly connected to the sealing strip (10). A connecting ring (15) is provided at the end of the wire rope (72). The wire rope (72) is passed around the fixing hook (17) so that the connecting ring (15) is sleeved on the guide post (73) closest to the fixing hook (17). The pressing assembly (9) includes a pressure plunger (91), two movable plungers (92) and two wedge-shaped pressure blocks (93). A U-shaped inflation chamber is provided inside the U-shaped plate (8). The pressure plunger (91) is located inside the U-shaped inflation chamber. The two movable plungers (92) are respectively located on the upper and lower sides of the U-shaped inflation chamber. The wedge-shaped pressure blocks (93) are located on the outside of the movable plungers (92) on the U-shaped plate (8). The movable plungers (92) and the wedge-shaped pressure blocks (93) are provided with arc-shaped cut surfaces on the sides that are close to each other. The pressure plunger (91) passes through the U-shaped plate (8) and is slidably connected to the U-shaped plate (8). The wedge-shaped pressure blocks (93) pass through the U-shaped plate (8) and are slidably connected to the U-shaped plate (8). A limit block (18) is provided on the wedge-shaped pressure blocks (93).

2. The prefabricated connection device for water supply and drainage pipes in prefabricated buildings according to claim 1, characterized in that: The mounting plate (1) has a cavity, and the connecting shaft (3) is rotatably disposed in the cavity. The locking assembly (4) includes a pressing plate (41), several limiting rods (42) and several magnetic blocks (43). The pressing plate (41) is sleeved on the connecting shaft (3). The limiting rods (42) are disposed on the pressing plate (41). The magnetic blocks (43) are disposed on the outside of the pressing plate (41) in the cavity. An arc-shaped inclined surface is provided on the side of the pressing plate (41) near the limiting rods (42). The magnetic blocks (43) are provided with a beveled surface that matches the arc-shaped inclined surface.

3. A prefabricated connection device for water supply and drainage pipes in prefabricated buildings according to claim 2, characterized in that: One of the connecting shafts (3) is provided with a thread, the connecting shaft (3) is threadedly connected to the extrusion plate (41), the remaining connecting shafts (3) are slidably connected to the extrusion plate (41), and the magnetic block (43) is provided with a plurality of balls.

4. A prefabricated connection device for water supply and drainage pipes in prefabricated buildings according to claim 3, characterized in that: The mounting plate (1) is provided with anchor holes, and anchor posts (12) are provided in the anchor holes. The anchor posts (12) are provided with limiting holes (13) that are compatible with the magnetic block (43). The magnetic block (43) is slidably connected to the mounting plate (1).

5. A prefabricated connection device for water supply and drainage pipes in prefabricated buildings according to claim 4, characterized in that: The connecting seat (2) is provided with a receiving cavity. The connecting shaft (3) passes through the outer wall of the receiving cavity and is rotatably connected to the connecting seat (2). The driving assembly (5) includes a worm wheel (51) and a worm (52). The worm wheel (51) is disposed on the connecting shaft (3). The worm (52) is disposed in the receiving cavity. The worm wheel (51) meshes with the worm (52). Two adjacent worms (52) are fixedly connected. The worm (52) passes through the connecting seat (2) and is rotatably connected to the connecting seat (2). A handwheel (16) is provided on the worm (52).

6. A prefabricated connection device for water supply and drainage pipes in prefabricated buildings according to claim 1, characterized in that: A stop (14) is provided on the guide post (73) closest to the fixed hook (17).

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