Hoop for building drainage pipeline

Abstract

The utility model relates to the technical field of connecting devices, in particular to a hoop for a building drainage pipeline, the hoop for the building drainage pipeline comprises an elastic band, a first connecting part and a second connecting part, the first connecting part is fixedly connected with one end of the elastic band, and the second connecting part is arranged at the position close to the other end of the elastic band; the elastic belt is fixedly connected with the elastic belt; a locking assembly which is used for connecting the first connecting part and the second connecting part together and pulling the first connecting part and the second connecting part towards each other is arranged between the first connecting part and the second connecting part; the locking assembly comprises a first connecting column, a second connecting column and a connecting rod, the first connecting column is rotationally connected with the first connecting part, the second connecting column is connected with the second connecting part in a clamped mode, one end of the connecting rod is in threaded connection with the first connecting column, and the other end of the connecting rod is in sliding connection with the second connecting column. And the mounting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of connecting devices, and particularly relates to a clamp for building drainage pipes. Background Art

[0002] At present, a clamp is a connecting device for connecting grooved pipe fittings, valves, and pipeline accessories, and is used to tightly connect between quick connectors. It has good performance, high sealing degree, and is easy to install.

[0003] Both ends of the existing clamp are provided with connection rings. Then, a fastening bolt is used to pass through the two connection rings, and then a nut is rotated on the fastening bolt, so as to connect the two ends of the clamp together, and further tightly connect the adjacent pipes together.

[0004] The above-mentioned prior art solutions have the following defects: Each time the pipe is fixed, the clamp needs to be fixed at the interface of the adjacent pipes first, so that the steel strip is closely attached to the outer wall of the pipe to hoop the pipe orifice. On the other hand, it is also necessary to take out the fastening bolt for fixation. During the process of taking the bolt, the steel strip often falls off from the pipe due to the elastic deformation ability to rebound, which is very inconvenient to install, and thus the installation efficiency is low. Content of the Utility Model

[0005] In order to improve the installation efficiency when using a clamp to connect adjacent pipes, the present application provides a clamp for building drainage pipes.

[0006] The above technical purpose of the present application is achieved through the following technical solutions:

[0007] A clamp for building drainage pipes includes an elastic band, a first connection part, and a second connection part. The first connection part is fixedly connected to one end of the elastic band. The second connection part is arranged near the other end of the elastic band and is fixedly connected to the elastic band. A locking component is arranged between the first connection part and the second connection part for connecting the first connection part and the second connection part together and pulling the first connection part and the second connection part towards each other. The locking component includes a first connection column, a second connection column, and a connecting rod. The first connection column is rotatably connected to the first connection part. The second connection column is clamped to the second connection part. One end of the connecting rod is threadedly connected to the first connection column, and the other end of the connecting rod is slidably connected to the second connection column.

[0008] By adopting the above scheme, the elastic band is sleeved at the interface of adjacent pipelines, so that the inner wall of the elastic band abuts against both adjacent pipelines. Then, the second connecting column is pulled to be clamped with the second connecting part, and then the connecting rod is rotated. The connecting rod rotates relative to the first connecting column, thereby tightening the distance between the first connecting column and the second connecting column, further reducing the diameter of the elastic band, and further clamping the pipe orifices of the two adjacent connecting pipes. Among them, the rotational connection between the first connecting column and the first connecting part has been pre-installed before the clamp leaves the factory. Compared with the existing clamp, there is no need to hold the elastic band by hand while taking out the fastening bolt. After finding the fastening bolt, perform secondary alignment of both ends of the clamp, then pass the fastening bolt through the connecting rings at both ends of the clamp, and then tighten it with a nut, achieving the purpose of improving the installation efficiency when using this clamp to connect adjacent pipelines.

[0009] Further, the first connecting part includes a first connecting plate and a second connecting plate. Both the first connecting plate and the second connecting plate are fixedly connected to the elastic band, and first sliding grooves are formed on the opposite sides of the first connecting plate and the second connecting plate. The second connecting part includes a third connecting plate and a fourth connecting plate. Both the third connecting plate and the fourth connecting plate are fixedly connected to the elastic band, and second sliding grooves are formed on the opposite sides of the third connecting plate and the fourth connecting plate. Both ends of the first connecting column are fixedly connected with first sliding rods, and both ends of the second connecting column are fixedly connected with second sliding rods. The first sliding rods are rotationally connected to the first sliding grooves, and the second connecting column is slidably connected to the second sliding grooves.

[0010] By adopting the above scheme, the arrangement of the first sliding rods and the first sliding grooves enables the first connecting column to be rotationally connected to the first connecting part; the arrangement of the second sliding rods and the second sliding grooves enables the second connecting column to be slidably connected to the second connecting part.

[0011] Further, a reverse stop groove is formed at a position of the first sliding groove close to the end of the elastic band. The reverse stop groove is arc-shaped as a whole. The first sliding rod is rectangular as a whole, and arc-shaped plates are fixedly connected to the opposite sides of the first sliding rod.

[0012] By adopting the above scheme, the two flat ends of the first sliding rod are respectively abutted against the two opposite side walls of the first sliding groove, and then the first sliding rod is driven to move along the first sliding groove until the first sliding rod is completely inserted into the reverse stop groove. Then, the first sliding rod is rotated so that the first sliding rod rotates to 90 degrees. At this time, the two sides of the first sliding rod with arc-shaped plates interfere with the two opposite side walls of the first sliding groove, and thus the first sliding rod cannot move along the first sliding groove in a direction away from the reverse stop groove.

[0013] Further, a rotary knob is fixedly connected to one end of the connecting rod close to the second connecting part. The rotary knob is fixedly connected to the connecting rod.

[0014] By adopting the above solution, the setting of the rotary knob facilitates driving the connecting rod to rotate.

[0015] Furthermore, anti-slip threads are provided on the outer side of the rotary knob.

[0016] By adopting the above solution, the setting of the anti-slip threads increases the friction when the human hand rotates the rotary knob.

[0017] Furthermore, a limiting ring is sleeved on the connecting rod. The limiting ring is arranged between the first connecting column and the second connecting column, and the limiting ring is used to limit the sliding of the second connecting column along the connecting rod.

[0018] By adopting the above solution, since threads are provided on the circumferential side of the connecting rod, the friction is relatively large during the process of the second connecting column sliding along the connecting rod. The limiting ring is provided to limit the maximum distance of the second connecting column sliding along the connecting rod to the first connecting column. Furthermore, when the second connecting column is clamped with the second connecting part, during the process of pulling the second connecting column along the connecting rod towards the direction close to the second connecting column, the pulling distance is short, saving the installation time.

[0019] Furthermore, a sealing gasket is embedded inside the elastic band.

[0020] Furthermore, a protrusion is provided in the middle of the sealing gasket.

[0021] By adopting the above solution, the protrusion is located between the side walls of two adjacent pipes, and the setting of the sealing gasket enhances the sealing effect of the clamp.

[0022] Furthermore, reinforcing ribs are fixedly connected to the positions of the elastic band close to both sides.

[0023] By adopting the above solution, the setting of the reinforcing ribs increases the anti-fracture property of the elastic band.

[0024] In summary, the present application has the following technical effects:

[0025] 1. By providing this clamp, the elastic band is sleeved at the interface of adjacent pipes, so that the inner wall of the elastic band abuts against both adjacent pipes. Then, the second connecting column is pulled to be clamped with the second connecting part, and then the connecting rod is rotated. The connecting rod rotates relative to the first connecting column, thereby tightening the distance between the first connecting column and the second connecting column, further reducing the diameter of the elastic band, and thus clamping the pipe orifices of two adjacent connecting pipes. Among them, the rotational connection between the first connecting column and the first connecting part has been pre-installed before the clamp leaves the factory; compared with the existing clamp, there is no need to hold the elastic band by hand while taking out the fastening bolts. After finding the fastening bolts, perform secondary alignment of both ends of the clamp, then pass the fastening bolts through the connecting rings at both ends of the clamp, and then tighten with nuts, achieving the purpose of improving the installation efficiency when using this clamp to connect adjacent pipes;

[0026] 2. By setting a limit ring, the maximum distance that the second connecting column slides along the connecting rod to the first connecting column is restricted. Furthermore, when the second connecting column is clamped with the second connecting part, during the process of pulling the second connecting column along the connecting rod towards the direction close to the second connecting column, the pulling distance is short, saving installation time;

[0027] 3. By setting an arc-shaped plate, the two flat ends of the first sliding rod are respectively abutted against the two opposite side walls of the first sliding groove, and then the first sliding rod is driven to move within the first sliding groove until the first sliding rod is completely inserted into the anti-reverse groove. Then, the first sliding rod is rotated so that the first sliding rod rotates to 90 degrees. At this time, the two sides of the first sliding rod with the arc-shaped plate respectively interfere with the two opposite side walls of the first sliding groove. Furthermore, the first sliding rod cannot move along the first sliding groove in the direction away from the anti-reverse groove. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a clamp for a building drainage pipeline in the present application;

[0029] Figure 2 is a schematic structural diagram of the locking component of the present application;

[0030] Figure 3 is a schematic structural diagram of the first connecting part and the second connecting part of the present application.

[0031] In the figure, 1. Elastic band; 2. First connecting part; 21. First connecting plate; 22. Second connecting plate; 3. Second connecting part; 31. Third connecting plate; 311. First sliding groove; 32. Fourth connecting plate; 321. Second sliding groove; 4. Locking component; 41. First connecting column; 411. First sliding rod; 42. Second connecting column; 421. Second sliding rod; 43. Connecting rod; 5. Anti-reverse groove; 6. Arc-shaped plate; 7. Rotating knob; 8. Limit ring; 9. Sealing gasket; 10. Reinforcing rib. Detailed Embodiments

[0032] The following further details the present application with reference to the accompanying drawings.

[0033] Refer to Figure 1, a clamp for a building drainage pipe provided in this embodiment includes an elastic band 1, a first connecting portion 2, a second connecting portion 3, and a locking assembly 4. The first connecting portion 2 is fixedly connected to one end of the elastic band 1. The second connecting portion 3 is disposed near the other end of the elastic band 1 and is fixedly connected to the elastic band 1. The locking assembly 4 is located between the first connecting portion 2 and the second connecting portion 3. One end of the locking assembly 4 is rotatably connected to the first connecting portion 2, and the other end of the locking assembly 4 is in snap-fit connection with the second connecting portion 3. The locking assembly 4 is used to connect the first connecting portion 2 and the second connecting portion 3 together and pull the first connecting portion 2 and the second connecting portion 3 in a direction close to each other.

[0034] Referring to Figures 1-3 , the locking assembly 4 includes a first connecting column 41, a second connecting column 42, and a connecting rod 43. The first connecting column 41 is rotatably connected to the first connecting portion 2. The second connecting column 42 is in snap-fit connection with the second connecting portion 3. A threaded hole is formed in the first connecting column 41. One end of the connecting rod 43 passes through the threaded hole and is threadedly connected to the threaded hole, and both ends of the threaded hole penetrate through the first connecting column 41. A sliding hole is formed in the second connecting column 42, and both ends of the sliding hole penetrate through the second connecting column 42. The other end of the connecting rod 43 passes through the sliding hole and is slidably connected to the sliding hole. A rotating knob 7 is fixedly connected to one end of the connecting rod 43 close to the second connecting column 42, and anti-slip lines are provided on the circumferential side of the rotating knob 7. The setting of the rotating knob 7 facilitates rotating the rotating knob 7, thereby driving the connecting rod 43 to rotate relative to the threaded hole, and further shortening the distance between the first connecting portion 2 and the second connecting portion 3.

[0035] Referring to Figures 1-3 , the first connecting portion 2 includes a first connecting plate 21 and a second connecting plate 22. Both the first connecting plate 21 and the second connecting plate 22 are fixedly connected to the elastic band 1, and first sliding grooves 311 are formed on the opposite sides of the first connecting plate 21 and the second connecting plate 22. The second connecting portion 3 includes a third connecting plate 31 and a fourth connecting plate 32. Both the third connecting plate 31 and the fourth connecting plate 32 are fixedly connected to the elastic band 1, and second sliding grooves 321 are formed on the opposite sides of the third connecting plate 31 and the fourth connecting plate 32. First sliding rods 411 are fixedly connected to both ends of the first connecting column 41, and second sliding rods 421 are fixedly connected to both ends of the second connecting column 42. The two first sliding rods 411 are respectively rotatably connected to the two first sliding grooves 311, and the two second sliding rods 421 are respectively slidably connected to the two second sliding grooves 321. In this embodiment, the elastic band 1 is made of stainless steel and has elasticity.

[0036] Referring to Figures 1-3, a reverse stop groove 5 is provided at a position of each first sliding groove 311 close to the end of the elastic band 1. The reverse stop groove 5 is arc-shaped as a whole. The opening width of the reverse stop groove 5 in the longitudinal direction is greater than the opening width of the first sliding groove 311 in the longitudinal direction. Each first sliding rod 411 is rectangular as a whole. Arc-shaped plates 6 are fixedly connected to opposite sides of each first sliding rod 411. The process of rotatably connecting the first sliding rod 411 to the first sliding groove 311 is as follows: abut the two flat ends of the first sliding rod 411 against two opposite side walls of the first sliding groove 311 respectively, and then drive the first sliding rod 411 to move along the first sliding groove 311 until the first sliding rod 411 is completely inserted into the reverse stop groove 5, and then rotate the first sliding rod 411 so that the first sliding rod 411 rotates to 90 degrees. At this time, the two sides of the first sliding rod 411 with the arc-shaped plates 6 interfere with two opposite side walls of the first sliding groove 311 respectively. Furthermore, the first sliding rod 411 cannot move along the first sliding groove 311 in a direction away from the reverse stop groove 5. In this embodiment, the state of the plug-in fit between the first sliding rod 411 and the reverse stop groove 5 has been pre-connected before the clamp leaves the factory.

[0037] Referring to Figures 1-3 , a limit ring 8 is sleeved on the connecting rod 43. The limit ring 8 is arranged between the first connecting column 41 and the second connecting column 42. The limit ring 8 is used to limit the second connecting column 42 from sliding along the connecting rod 43. Since threads are provided on the circumferential side of the connecting rod 43, the friction force is relatively large during the process of the second connecting column 42 sliding along the connecting rod 43, and it is rather laborious for a person to pull the second connecting column 42 to slide relative to the connecting rod 43. The limit ring 8 is provided to limit the maximum distance of the second connecting column 42 sliding along the connecting rod 43 in the direction of the first connecting rod 43. Furthermore, when the second sliding rod 421 needs to be clamped with the second sliding groove 321, the distance of pulling the second connecting column 42 along the connecting rod 43 in a direction close to the second sliding groove 321 is short, saving installation time. In this embodiment, the limit ring 8 is preferably made of rubber material. Without the action of external force, the limit ring 8 will not slide along the connecting rod 43. If an external force is applied to the limit ring 8 manually, the limit ring 8 can slide along the connecting rod 43.

[0038] Referring to Figure 1 A sealing gasket 9 is embedded in the elastic band 1, and a protrusion is provided in the middle of the sealing gasket 9. The position of the protrusion is between the side walls of two adjacent pipes. The setting of the sealing gasket 9 enhances the sealing effect of the elastic band 1 on the pipes. Reinforcing ribs 10 are fixedly connected to positions of the elastic band 1 close to both sides. Each reinforcing rib 10 is arranged around the elastic band 1 for one circle. The setting of the reinforcing ribs 10 increases the anti-breaking property of the elastic band 1.

[0039] The implementation principle of a pipe clamp for building drainage pipes in an embodiment of the present application is as follows: The elastic band 1 is sleeved on the outer walls of two pipes to be connected. At this time, the protruding position of the sealing gasket 9 is clamped between the side walls of two adjacent pipes. Then, the second connecting column 42 is pulled to slide along the connecting rod 43 to the position of the second chute 321, and the two second sliding rods 421 are respectively clamped in the two second chutes 321. Then, the rotary knob 7 is rotated. The rotary knob 7 rotates relative to the threaded hole, thereby driving the second sliding rod 421 to move along the second chute 321 towards the direction close to the first chute 311. When the second connecting rod 43 and the second chute 321 slide to abut against the side wall close to the first chute 311, the rotary knob 7 is continuously rotated. At this time, the elastic band 1 shrinks, thereby driving the first connecting column 41 and the second connecting column 42 to continuously approach each other until the elastic band 1 clamps both adjacent pipes tightly, thereby completing the connection operation between the two adjacent pipes.

[0040] This specific embodiment is only an explanation of the present application, and it is not a limitation of the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A clamp for a building drainage pipe, characterized in that: The invention comprises an elastic band (1), a first connecting part (2) and a second connecting part (3), wherein the first connecting part (2) is fixedly connected to one end of the elastic band (1), and the second connecting part (3) is arranged at a position close to the other end of the elastic band (1) and is fixedly connected to the elastic band (1); a locking assembly (4) is arranged between the first connecting part (2) and the second connecting part (3) for connecting the first connecting part (2) and the second connecting part (3) together and pulling the first connecting part (2) and the second connecting part (3) in a direction close to each other; the locking assembly (4) comprises a first connecting column (41), a second connecting column (42) and a connecting rod (43), wherein the first connecting column (41) is rotatably connected to the first connecting part (2), the second connecting column (42) is clamped to the second connecting part (3), one end of the connecting rod (43) is threadedly connected to the first connecting column (41), and the other end of the connecting rod (43) is slidably connected to the second connecting column (42).

2. A clamp for building drainage pipes according to claim 1, characterized in that: The first connecting part (2) comprises a first connecting plate (21) and a second connecting plate (22), the first connecting plate (21) and the second connecting plate (22) are both fixedly connected to the elastic band (1), and a first sliding groove (311) is provided on the opposite side of the first connecting plate (21) and the second connecting plate (22); the second connecting part (3) comprises a third connecting plate (31) and a fourth connecting plate (32), the third connecting plate (31) and the fourth connecting plate (32) are both fixedly connected to the elastic band (1), and a second sliding groove (321) is provided on the opposite side of the third connecting plate (31) and the fourth connecting plate (32); both ends of the first connecting column (41) are fixedly connected to the first sliding rod (411), and both ends of the second connecting column (42) are fixedly connected to the second sliding rod (421); the first sliding rod (411) is rotatably connected to the first sliding groove (311), and the second connecting column (42) is slidably connected to the second sliding groove (321).

3. A clamp for building drainage pipe according to claim 2, characterized in that: A non-return groove (5) is provided at a position of the first slide groove (311) close to the end of the elastic band (1); the non-return groove (5) is generally arc-shaped; the first sliding rod (411) is generally rectangular; and arc-shaped plates (6) are fixedly connected to opposite sides of the first sliding rod (411).

4. The clamp for building drainage pipe according to claim 1, characterized in that: One end of the connecting rod (43) close to the second connecting portion (3) is fixedly connected to a rotating knob (7), and the rotating knob (7) is fixedly connected to the connecting rod (43).

5. A clamp for building drainage pipes according to claim 4, characterized in that: The outer side of the rotating knob (7) is provided with anti-slip grooves.

6. The clamp for building drainage pipe according to claim 1, characterized in that: The connecting rod (43) is sleeved with a limiting ring (8), which is arranged between the first connecting column (41) and the second connecting column (42). The limiting ring (8) is used to limit the second connecting column (42) from sliding along the connecting rod (43).

7. The clamp for building drainage pipe according to claim 1, characterized in that: A sealing pad (9) is embedded inside the elastic band (1).

8. The clamp for building drainage pipe according to claim 7, characterized in that: A protrusion is provided in the middle of the sealing pad (9).

9. The clamp for building drainage pipe according to claim 7, characterized in that: The elastic band (1) is fixedly connected with reinforcing ribs (10) near the two sides.

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