Building water supply and drainage pipeline connecting device

Abstract

The utility model provides a kind of building water supply and drainage pipeline connecting device, building water supply and drainage pipeline connecting device includes two pipeline bodies and connecting piece, two pipeline bodies are detachably connected by connecting assembly, the outside of two pipeline bodies is detachably connected with buckling assembly, rubber shock-absorbing layer is equipped between buckling assembly and two pipeline bodies, two clamping blocks are respectively fixed in the end of two pipeline bodies away from connecting assembly, the surface of buckling assembly is also rotationally provided with locking assembly for adjusting the spacing of two clamping blocks, the building water supply and drainage pipeline connecting device provided by the utility model adopts mechanical locking and elastic compensation double protection mechanism, the spacing of two clamping blocks is adjusted by rotating locking assembly, to a certain extent, the compensation of pipeline body axial displacement is realized, the gap generated due to thermal expansion and contraction or vibration is eliminated, so that connecting assembly is in pre-tightening state.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe connection technology, and in particular to a building water supply and drainage pipe connection device. Background Technology

[0002] In building water supply and drainage systems, the reliability of pipe connections, vibration damping performance, and ease of installation and maintenance are key factors affecting the long-term stable operation of the system.

[0003] The existing publication number CN221402239U discloses a building water supply and drainage pipe connection device, including a connecting pipe with flanges installed at both ends. A first connecting pipe is fixedly connected to the left end of the connecting pipe, and a second connecting pipe is fixedly connected to the right end. Two protective covers are provided on the outer surface of the connecting pipe. This building water supply and drainage pipe connection device, by providing protective covers on the outside of the connecting pipe, facilitates reinforcement and protection of the connection point of the drainage pipe. Simultaneously, the inside of the protective cover is provided with a foam sleeve and edge-filled foam sleeve, which, through the elastic force of a spring, contacts the surface of the connecting pipe and the connection point between the connecting pipe and the first and second connecting pipes, facilitating the absorption of vibrations generated by the drainage pipe. The lower protective cover also has a bottom connecting plate, facilitating the fixing of the connection device to the wall, further reducing the vibration of the drainage pipe and extending its service life. It was found that the above device still has shortcomings in use. Firstly, when the device is in use, the spring force makes contact with the surface of the connecting pipe and the connection between the connecting pipe and the first and second connecting pipes, which facilitates the absorption of vibrations generated by the drain pipe. However, the metal spring is mainly effective for low-frequency vibrations, and its ability to absorb high-frequency vibrations, such as noise generated by water flow impact, is limited. Secondly, when the above-mentioned device is in use, the flange bolts are prone to creep and loosening under long-term vibration, resulting in a decrease in preload. After long-term use, the connection between the two connecting pipes will become loose and gaps will appear, which will reduce the sealing of the connecting pipe connection and cause water leakage.

[0004] Therefore, it is necessary to provide a new building water supply and drainage pipe connection device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a building water supply and drainage pipe connection device. The building water supply and drainage pipe connection device provided by this utility model includes: two pipe bodies and a connecting component. The two pipe bodies are detachably connected by the connecting component. A fastening component is detachably connected to the outer side of the two pipe bodies. A rubber shock-absorbing layer is provided between the fastening component and the two pipe bodies. Two clamping blocks are fixed at the ends of the two pipe bodies away from the connecting component. A locking component for adjusting the distance between the two clamping blocks is also rotatably provided on the surface of the fastening component.

[0006] Preferably, the fastening assembly includes two cover plates, which are disposed on the outer surfaces of the two pipe bodies. Mounting plates are fixed at the edges of the two cover plates, and the four mounting plates are connected by multiple bolts with two threads. A fixing plate is fixed at the top of the two cover plates.

[0007] Preferably, each of the two fixing plates has two grooves on its top, and the bottom wall of each of the four grooves has a cross-shaped slot, and the locking assembly is rotatably disposed in the four grooves.

[0008] Preferably, the locking assembly includes four rotating rollers, one end of each of the four rotating rollers rotating on the bottom wall of the four grooves respectively, and a traction rope wound around the surface of each of the four rotating rollers. The other end of each of the four rotating rollers is provided with a cross-shaped slot 2, the slot 2 matching the size of the slot 1 and located directly above the slot 1. Insert blocks are slidably disposed on the inner sidewalls of each of the four slot 2, and pull rings are fixed to the top of each of the four insert blocks. Pull rods are fixed to the top and bottom of each of the two clamping blocks, and one end of each of the four traction ropes is fixedly connected to the surface of the four pull rods respectively.

[0009] Preferably, the connecting assembly includes a connecting pipe, both ends of which are fixed with flange one, and both ends of the two pipe bodies near the connecting pipe are fixed with flange two, and flange one and flange two are detachably connected by bolt one.

[0010] Preferably, the rubber damping layer has a cavity inside, and the flange one, flange two, and one end of the two pipe bodies are all located in the cavity.

[0011] Preferably, the rubber damping layer comprises a rigid support layer, a medium-hardness transition layer, and a soft energy-absorbing layer bonded sequentially from the inside out. The rigid support layer is bonded to the surfaces of flange one, flange two, and the two pipe bodies, and the outer side of the soft energy-absorbing layer is fixedly connected to the inner walls of the two cover plates.

[0012] Preferably, the rigid support layer is nitrile rubber, the medium-hardness transition layer is silicone rubber, and the soft energy-absorbing layer is foam rubber.

[0013] Compared with related technologies, the building water supply and drainage pipe connection device provided by this utility model has the following advantages: 1. This utility model adopts a dual guarantee mechanism of mechanical locking and elastic compensation. By rotating the locking component, the distance between the two clamping blocks is adjusted, which to a certain extent realizes the compensation of the axial displacement of the pipe body, eliminates the gap caused by thermal expansion and contraction or vibration, and makes the connecting component in a pre-tightened state. Furthermore, the rubber damping layer fits into the pipe body to form a flexible sealing barrier. Even if there is local stress concentration, the sealing integrity can be maintained through elastic deformation, thus solving the leakage risk caused by rigid connection. 2. This utility model constructs a multi-level vibration attenuation system through the coordinated design of the rubber damping layer and the fastening components. The rubber damping layer adopts a rigid support layer, a medium-hardness transition layer and a soft energy-absorbing layer bonded from the inside to the outside, which solves the problem that the traditional use of springs is ineffective for high-frequency vibration. To a certain extent, it reduces the noise of water flow impact and improves the comfort of the building environment. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the building water supply and drainage pipe connection device provided by this utility model; Figure 2 This is a schematic diagram of the locking assembly. Figure 3 This is a structural diagram of the fastening assembly; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A cross-sectional structural schematic diagram of the building water supply and drainage pipe connection device provided by this utility model; Figure 6 This is a schematic diagram of the connecting pipe structure; Figure 7 This is a schematic diagram of the cross-sectional structure of the rubber damping layer.

[0015] Numbered in the diagram: 1. Pipe body; 11. Connecting pipe; 12. Flange 1; 13. Flange 2; 14. Bolt 1; 2. Rubber damping layer; 21. Cavity; 22. Rigid support layer; 23. Medium hardness transition layer; 24. Soft energy-absorbing layer; 3. Cover plate; 31. Mounting plate; 32. Bolt 2; 33. Fixing plate; 331. Groove; 332. Slot 1; 4. Clamping block; 41. Rotating roller; 411. Slot 2; 42. Traction rope; 43. Insert block; 431. Pull ring; 44. Pull rod. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1 to 7 ,in, Figure 1 A schematic diagram of the overall structure of the building water supply and drainage pipe connection device provided by this utility model; Figure 2 This is a schematic diagram of the locking assembly. Figure 3 A structural diagram of the protective components; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A cross-sectional structural schematic diagram of the building water supply and drainage pipe connection device provided by this utility model; Figure 6 This is a schematic diagram of the connecting pipe structure; Figure 7 This is a schematic diagram of the cross-sectional structure of the rubber damping layer.

[0018] In some embodiments, such as Figures 1 to 7 As shown, it includes two pipe bodies 1 and a connecting assembly. The two pipe bodies 1 are detachably connected by the connecting assembly. A fastening assembly is detachably connected to the outside of the two pipe bodies 1. A rubber shock-absorbing layer 2 is provided between the fastening assembly and the two pipe bodies 1. Two clamping blocks 4 are fixed at the ends of the two pipe bodies 1 away from the connecting assembly. A locking assembly for adjusting the distance between the two clamping blocks 4 is also rotatably provided on the surface of the fastening assembly. The fastening assembly includes two cover plates 3, which are disposed on the outer surfaces of the two pipe bodies 1. Mounting plates 31 are fixed at the edges of the two cover plates 3. The four mounting plates 31 are connected by multiple bolts 32. A fixing plate 33 is fixed at the top of the two cover plates 3. Two grooves 331 are provided on the top of each of the two fixing plates 33, and a cross-shaped slot 332 is provided on the bottom wall of each of the four grooves 331. The locking component is rotatably disposed in the four grooves 331. The locking assembly includes four rotating rollers 41. One end of each of the four rotating rollers 41 rotates on the bottom wall of the four grooves 331. The surface of each of the four rotating rollers 41 is wound with a traction rope 42, which is a steel wire rope. The other end of each of the four rotating rollers 41 is provided with a cross-shaped slot 411. The slot 411 matches the size of the slot 332 and is located directly above the slot 332. Insert blocks 43 are slidably arranged on the inner side wall of each of the four slots 411. Pull rings 431 are fixed to the top of each of the four insert blocks 43. Pull rods 44 are fixed to the top and bottom of the two clamping blocks 4. One end of each of the four traction ropes 42 is fixedly connected to the surface of the four pull rods 44. Specifically, during use, the two pipe bodies 1 are aligned and initially fixed using the connecting components. The cover plate 3 is fastened to the outside of the pipe body 1, and the mounting plate 31 is tightened with bolt 2 32, so that the rubber damping layer 2 is tightly attached to the surface of the pipe body 1. At this time, the rotating roller 41 is rotated, the traction rope 42 is wound around, and the clamping block 4 is moved along the axial direction of the pipe body 1. The distance between the two pipe bodies 1 is adjusted to the design value, which is to compensate for manufacturing errors or thermal expansion and contraction. The insert block 43 is inserted into slot 1 332 and slot 2 411, the angle of the rotating roller 41 is locked, and the position of the clamping block 4 is fixed, so that the pre-tightening force at the connection of the pipe body 1 is constant, and the vibration generated by the pipe body 1 during operation is absorbed by the elastic deformation of the rubber damping layer 2.

[0019] Furthermore, the locking assembly adjusts the gap between the clamping blocks 4 through the rotating roller 41 and the traction rope 42. To a certain extent, this can compensate for the manufacturing tolerances or thermal expansion and contraction of the pipe body 1, ensuring that the connection is in a pre-tightened state and avoiding vibration amplification or leakage caused by the gap.

[0020] In some embodiments, reference is made to Figure 1 as well as Figure 6 As shown, the connecting assembly includes a connecting pipe 11, with flange 12 fixed at both ends of the connecting pipe 11, and flange 2 13 fixed at the end of each of the two pipe bodies 1 near the connecting pipe 11. Flange 12 and flange 2 13 are detachably connected by bolt 14. Among them, flange 12 and flange 23 are made of stainless steel; Among them, a sealing gasket is provided at the connection between flange 12 and flange 23. The sealing gasket is made of rubber, which to a certain extent prevents water from leaking from between flange 12 and flange 23. The rubber damping layer 2 has a cavity 21 inside, which ensures that the ends of flange 12, flange 23 and the two pipe bodies 1 are all located in the cavity 21 and are in contact with the rubber damping layer 2.

[0021] In some embodiments, reference is made to Figure 1 , Figure 5 , Figure 6 as well as Figure 7 As shown, the rubber damping layer 2 includes a rigid support layer 22, a medium hardness transition layer 23 and a soft energy-absorbing layer 24 bonded together from the inside out. The rigid support layer 22 is attached to the surfaces of flange 12, flange 23 and the two pipe bodies 1. The outer side of the soft energy-absorbing layer 24 is fixedly connected to the inner walls of the two cover plates 3. The adhesive used for bonding is preferably a polyurethane adhesive; The rigid support layer 22 is made of nitrile rubber, the medium-hardness transition layer 23 is made of silicone rubber, and the soft energy-absorbing layer 24 is made of foam rubber.

[0022] Among them, the rigid support layer 22 is used to provide high rigidity and limit the radial displacement at the connection between flange 12 and flange 23; Medium-hardness transition layer 23: used to reduce the stress gradient between the hard support layer 22 and the soft energy-absorbing layer 24, and to avoid shear cracks at the interface. Soft energy-absorbing layer 24: dissipates energy through the compression-rebound cycle of foam pores, while reducing water flow impact noise and absorbing high-frequency vibration energy.

[0023] Specifically, compared to single-material damping layers, the three-layer composite structure has a higher vibration attenuation rate in the 5~200Hz frequency band, and reduces vibration fatigue damage to auxiliary equipment such as pumps and valves, thereby extending the equipment failure interval and reducing the number of maintenance required.

[0024] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A building water supply and drainage pipe connection device, comprising two pipe bodies (1) and a connection assembly, wherein the two pipe bodies (1) are detachably connected by the connection assembly, and a fastening assembly is detachably connected to the outer side of the two pipe bodies (1), characterized in that, A rubber shock-absorbing layer (2) is provided between the fastening assembly and the two pipe bodies (1). Two clamping blocks (4) are fixed at the ends of the two pipe bodies (1) away from the connecting assembly. A locking assembly for adjusting the distance between the two clamping blocks (4) is also rotatably provided on the surface of the fastening assembly. The fastening assembly includes two cover plates (3), which are disposed on the outer surfaces of the two pipe bodies (1). Mounting plates (31) are fixed at the edges of the two cover plates (3). The four mounting plates (31) are connected by multiple bolts (32) and a fixing plate (33) is fixed at the top of the two cover plates (3). The top of each of the two fixing plates (33) has two grooves (331), and the bottom wall of each of the four grooves (331) has a cross-shaped slot (332), and the locking assembly is rotatably disposed in the four grooves (331). The locking assembly includes four rotating rollers (41), one end of each of the four rotating rollers (41) rotates on the bottom wall of the four grooves (331), and the surface of each of the four rotating rollers (41) is wrapped with a traction rope (42). The other end of each of the four rotating rollers (41) is provided with a cross-shaped slot two (411). The slot two (411) matches the size of the slot one (332) and is located directly above the slot one (332). Insert blocks (43) are slidably arranged on the inner sidewalls of each of the four slot two (411). Pull rings (431) are fixed to the top of each of the four insert blocks (43). Pull rods (44) are fixed to the top and bottom of each of the two clamping blocks (4). One end of each of the four traction ropes (42) is fixedly connected to the surface of each of the four pull rods (44).

2. The building water supply and drainage pipe connection device according to claim 1, characterized in that, The connecting assembly includes a connecting pipe (11), both ends of which are fixed with flange one (12), and both ends of the two pipe bodies (1) near the connecting pipe (11) are fixed with flange two (13). Flange one (12) and flange two (13) are detachably connected by bolt one (14).

3. The building water supply and drainage pipe connection device according to claim 2, characterized in that, The rubber damping layer (2) has a cavity (21) inside, and one end of the flange one (12), flange two (13) and the two pipe bodies (1) are all located in the cavity (21).

4. The building water supply and drainage pipe connection device according to claim 3, characterized in that, The rubber damping layer (2) includes a rigid support layer (22), a medium hardness transition layer (23) and a soft energy-absorbing layer (24) bonded together from the inside out. The rigid support layer (22) is attached to the surfaces of the flange one (12), flange two (13) and the two pipe bodies (1). The outer side of the soft energy-absorbing layer (24) is fixedly connected to the inner walls of the two cover plates (3).

5. The building water supply and drainage pipe connection device according to claim 4, characterized in that, The rigid support layer (22) is nitrile rubber, the medium hardness transition layer (23) is silicone rubber, and the soft energy-absorbing layer (24) is foam rubber.

Images