Municipal water supply and drainage pipeline connecting structure

Abstract

The utility model discloses a municipal water supply and drainage pipeline connecting structure which comprises a circular ring body arranged on a pipeline body in a sleeving mode and a connecting unit. Each connecting unit comprises an outer circular ring attached to the outer wall of the corresponding pipeline body, a middle ring integrally formed with the inner side of the outer circular ring and located between the two pipeline bodies and an inner circular ring integrally formed with the inner side of the middle ring, and outer annular grooves matched with the outer circular rings in a clamped mode are formed in the inner sides of the ends, close to each other, of the two circular ring bodies correspondingly. Inner annular grooves clamped and matched with the ends of the inner rings are formed in the inner sides of the ends, close to each other, of the two pipeline bodies, inner annular rubber sheets are fixed to the inner walls of the inner annular grooves, positioning holes are formed in the positions, close to the ring bodies, of the outer walls of the pipeline bodies, positioning rods are inserted in the positioning holes in a matched mode, and abutting assemblies are arranged on the positioning rods. The two circular ring bodies are connected through a lock catch assembly. The complex operation that in the prior art, two pipeline bodies need to be connected through a plurality of bolts and nuts is changed.

Description

Technical Field

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

[0002] In the field of municipal water supply and drainage, it is often necessary to connect two water supply and drainage pipes. The methods for connecting two water supply and drainage pipes include threaded connection, flange connection, welding connection, socket connection, and pipe bonding connection. Among these, flange connection and welding connection are the most commonly used connection methods.

[0003] However, welding is unsuitable in many locations and requires the use of a welding torch, demanding a high level of expertise from the workers. When connecting two water supply and drainage pipes using flange connections, a gasket is typically sandwiched between the flanges of the two pipes. The two flanges are then tightened with bolts to achieve a seal. To ensure even stress on the gasket, multiple sets of bolts and nuts are needed to secure the flanges. This requires workers to spend a significant amount of time tightening the bolts or nuts, making the operation time-consuming and labor-intensive. This reduces the efficiency of connecting or maintaining the two water supply and drainage pipes. Therefore, improvements to the relevant technology are necessary. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a connection structure for municipal water supply and drainage pipelines.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a municipal water supply and drainage pipeline connection structure, comprising an annular body sleeved on the pipeline body and having a clearance fit with the pipeline body, and a connection unit disposed between two pipeline bodies to be connected. The connection unit includes an outer annular ring that fits against the outer wall of the pipeline body, an intermediate ring integrally formed with the inner side of the outer annular ring and located between the two pipeline bodies, and an inner annular ring integrally formed with the inner side of the intermediate ring. The inner sides of the two annular bodies near each other are provided with an outer annular groove that engages with the outer annular ring. The inner sides of the two pipeline bodies near each other are provided with an inner annular groove that engages with the end of the inner annular ring. An inner annular rubber sheet that abuts against the end of the inner annular ring is fitted and fixed to the inner wall of the inner annular groove. A positioning hole is provided on the outer wall of the pipeline body near the annular body. A positioning rod is inserted into the positioning hole. A clamping component for clamping the annular body is provided on the positioning rod. The two annular bodies are connected by a locking component.

[0006] By adopting the above technical solution, the positioning rod and the positioning hole are inserted and matched, and the clamping component plays a good clamping role on the ring body. The locking component connects the two ring bodies, thereby realizing the connection between the two pipe bodies. The inner ring rubber sheet is clamped by the inner ring groove of the pipe body and the inner ring of the connecting unit, ensuring the sealing performance. This changes the cumbersome operation of connecting the two pipe bodies with multiple bolts and nuts in the traditional technology.

[0007] Furthermore, the locking assembly is provided in two sets and symmetrically arranged. Each set of the locking assembly includes a U-shaped block fixed on the outer wall of the ring body. There are two U-shaped blocks, which are respectively located on the two ring bodies. The locking assembly also includes a connecting post rotatably connected to the U-shaped block and a nut sleeved on the connecting post and threadedly connected.

[0008] By adopting the above technical solution, the outer ring fits against the outer wall of the pipe body, the two ends of the middle ring abut against the two pipe bodies that are close to each other, and the two ends of the inner ring engage with the inner annular grooves of the two pipe bodies. This achieves the initial connection between the two pipe bodies. The two rings abut against each other on their close sides, and the two ends of the outer ring engage with the outer annular grooves of the two rings. After rotating the connecting column and tightening the nut, the connection between the two rings can be achieved, which helps to enhance the connection between the two pipe bodies.

[0009] Furthermore, a gasket that fits the gap between the connecting post and the connecting post is fitted on the connecting post, and the gasket is located between the nut and one of the U-shaped blocks.

[0010] By adopting the above technical solution, the gasket is made of rubber material, which has good elasticity. The setting of the gasket reduces the friction between the nut and the U-shaped block, which helps to protect the locking assembly.

[0011] Furthermore, a rubber plate is fixed to one end of the connecting column away from the rotational connection point between it and the U-shaped block, and the diameter of the rubber plate is larger than the diameter of the connecting column.

[0012] By adopting the above technical solution, the rubber plate plays a certain role in limiting the nut, reducing the probability of the nut detaching from the connecting post and being lost.

[0013] Furthermore, the clamping assembly includes an arc-shaped rod fixed to one end of the positioning rod away from the positioning hole, and a bolt that passes through the arc-shaped rod and is threadedly connected to it, with the end of the bolt abutting against the side wall of the annulus.

[0014] By adopting the above technical solution, after tightening the bolt, the bolt end abuts against the side wall of the ring. Under the cooperation of the positioning rod and the arc-shaped rod, the fixing effect of the ring is further improved, which helps to enhance the stability of the connection between the two pipe bodies and the pressing effect on the inner ring rubber sheet, thus ensuring the sealing effect.

[0015] Furthermore, a rubber block is fixed to the end of the bolt, which abuts against the side wall of the annulus.

[0016] By adopting the above technical solution, the rubber block enables a flexible connection between the bolt end and the ring, reducing frictional damage to the ring during bolt tightening.

[0017] Furthermore, an outer annular rubber sheet is attached and fixed to the inner wall of the outer annular groove, and the outer annular rubber sheet abuts against the end of the outer ring.

[0018] Furthermore, the longitudinal section of the inner annular groove is V-shaped, the sidewall of the inner annular groove away from the pipe body is parallel to the axis of the pipe body, and the diameter of the inner wall of the inner annular groove near the axis of the pipe body increases from the annular body toward the end away from the annular body.

[0019] By adopting the above technical solution, the path of water seeping out from the inner annular groove is extended to a certain extent, which helps to improve the sealing of the connection between the two pipe bodies.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, the positioning rod and the positioning hole are inserted and matched, the clamping component plays a good clamping role on the ring body, and the locking component connects the two ring bodies, thereby realizing the connection between the two pipe bodies. The inner ring rubber sheet is clamped by the inner ring groove of the pipe body and the inner ring of the connecting unit, ensuring the sealing performance and changing the cumbersome operation of connecting the two pipe bodies with multiple bolts and nuts in the traditional technology.

[0022] 2. In this application, after the bolt is tightened, the bolt end abuts against the side wall of the ring. With the cooperation of the positioning rod and the arc-shaped rod, the fixing effect on the ring is further improved, which helps to enhance the stability of the connection between the two pipe bodies and the pressing effect on the inner annular rubber sheet, thus ensuring the sealing effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a plan view of an embodiment of the present utility model;

[0026] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0027] Figure 5 yes Figure 1 Enlarged diagram of point C in the middle.

[0028] In the diagram: 1. Pipe body; 11. Inner annular groove; 111. Inner annular rubber sheet; 12. Positioning hole; 2. Circular ring; 21. Outer annular groove; 211. Outer annular rubber sheet; 3. Connecting unit; 31. Outer ring; 32. Intermediate ring; 33. Inner ring; 4. Positioning rod; 5. Clamping assembly; 51. Arc-shaped rod; 52. Bolt; 521. Rubber block; 6. Locking assembly; 61. U-shaped block; 62. Connecting column; 621. Gasket; 622. Rubber plate; 63. Nut. Detailed Implementation

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

[0030] like Figure 1-5 As shown in the figure, this application discloses a municipal water supply and drainage pipeline connection structure, including a ring body 2 sleeved on the pipeline body 1 and fitted with a clearance between the pipeline body 1, and a connection unit 3 disposed between two pipeline bodies 1 to be connected. The connection unit 3 includes an outer ring 31 that fits against the outer wall of the pipeline body 1, an intermediate ring 32 integrally formed with the inner side of the outer ring 31 and located between the two pipeline bodies 1, and an inner ring 33 integrally formed with the inner side of the intermediate ring 32. The inner sides of the two ring bodies 2 that are close to each other are provided with a snap-fitting function with the outer ring 31. The outer annular groove 21 is provided, and the inner sides of the two pipe bodies 1, which are close to each other, are provided with inner annular grooves 11 that engage with the ends of the inner rings 33. The inner walls of the inner annular grooves 11 are fitted and fixed with inner annular rubber sheets 111 that abut against the ends of the inner rings 33. The outer wall of the pipe body 1 is provided with a positioning hole 12 near the ring body 2. A positioning rod 4 is inserted into the positioning hole 12. The positioning rod 4 is provided with a pressing component 5 for pressing against the ring body 2. The two ring bodies 2 are connected by a locking component 6.

[0031] The positioning rod 4 is inserted into the positioning hole 12, and the clamping component 5 provides a good clamping effect on the ring body 2. The locking component 6 connects the two ring bodies 2, thereby realizing the connection between the two pipe bodies 1. The inner ring rubber sheet 111 is clamped by the inner ring groove 11 of the pipe body 1 and the inner ring 33 of the connecting unit 3, ensuring the sealing performance. This changes the cumbersome operation of connecting the two pipe bodies 1 using multiple bolts 52 and nuts 63 in the traditional technology.

[0032] The locking assembly 6 is provided in two sets and symmetrically arranged. Each set of the locking assembly 6 includes a U-shaped block 61 fixed on the outer wall of the ring body 2. There are two U-shaped blocks 61 and they are respectively located on the two ring bodies 2. The locking assembly 6 also includes a connecting post 62 rotatably connected to the U-shaped block 61 and a nut 63 sleeved on the connecting post 62 and threadedly connected.

[0033] The outer ring 31 fits against the outer wall of the pipe body 1, the two ends of the middle ring 32 abut against the two pipe bodies 1 that are close to each other, and the two ends of the inner ring 33 are engaged with the inner annular grooves 11 of the two pipe bodies 1. This achieves the initial connection between the two pipe bodies 1. The two ring bodies 2 abut against each other on their close sides, and the two ends of the outer ring 31 are engaged with the outer annular grooves 21 of the two ring bodies 2. After rotating the connecting column 62, tightening the nut 63 will achieve the connection between the two ring bodies 2, which is beneficial to enhance the connection between the two pipe bodies 1.

[0034] A gasket 621, which is fitted with the connecting post 62 with a clearance fit, is provided on the connecting post 62. The gasket 621 is located between the nut 63 and one of the U-shaped blocks 61. The gasket 621 is made of rubber material and has good elasticity. The setting of the gasket 621 reduces the friction between the nut 63 and the U-shaped block 61, which helps to protect the locking assembly 6.

[0035] A rubber plate 622 is fixed to one end of the connecting post 62 away from the rotational connection point between it and the U-shaped block 61. The diameter of the rubber plate 622 is larger than the diameter of the connecting post 62. The rubber plate 622, to a certain extent, limits the nut 63, reducing the probability of the nut 63 detaching from the connecting post 62 and being lost. When disassembling the two pipe bodies 1, it is only necessary to loosen the nut 63 so that the connecting post 62 can rotate from the open side of the two U-shaped blocks 61, so that the two annular bodies 2 can be separated and the two pipe bodies 1 can be disassembled.

[0036] The clamping assembly 5 includes an arc-shaped rod 51 fixed to one end of the positioning rod 4 away from the positioning hole 12, and a bolt 52 that passes through the arc-shaped rod 51 and is threadedly connected to the arc-shaped rod 51. The end of the bolt 52 is clamped to the side wall of the ring 2.

[0037] After tightening bolt 52, the end of bolt 52 abuts against the side wall of the ring body 2. With the cooperation of positioning rod 4 and arc-shaped rod 51, the fixing effect on the ring body 2 is further improved, which helps to enhance the stability of the connection between the two pipe bodies 1 and the pressing effect on the inner annular rubber sheet 111, thus ensuring the sealing effect.

[0038] The end of the bolt 52 is fixed with a rubber block 521 that abuts against the side wall of the ring body 2. The setting of the rubber block 521 makes the end of the bolt 52 and the ring body 2 flexibly connected, reducing the frictional damage to the ring body 2 during the tightening of the bolt 52.

[0039] In this embodiment, an outer annular rubber sheet 211 is attached and fixed to the inner wall of the outer annular groove 21. The outer annular rubber sheet 211 abuts against the end of the outer ring 31. The setting of the outer annular rubber sheet 211 helps to reduce the squeezing damage between the ring body 2 and the outer ring 31.

[0040] The longitudinal section of the inner annular groove 11 is V-shaped. The side wall of the inner annular groove 11 away from the pipe body 1 is parallel to the axis of the pipe body 1. The diameter of the inner wall of the inner annular groove 11 near the axis of the pipe body 1 increases from the end of the annular body 2 toward the end away from the annular body 2. This extends the path of water seepage from the inner annular groove 11 to a certain extent, which helps to improve the sealing of the connection between the two pipe bodies 1.

[0041] The working principle of the municipal water supply and drainage pipeline connection structure in this embodiment is as follows: the positioning rod 4 is inserted into the positioning hole 12, the clamping component 5 provides a good clamping effect on the ring body 2, and the locking component 6 connects the two ring bodies 2, thereby realizing the connection between the two pipe bodies 1. The inner ring rubber sheet 111 is clamped by the inner ring groove 11 of the pipe body 1 and the inner ring 33 of the connecting unit 3, ensuring the sealing performance and changing the cumbersome operation of connecting the two pipe bodies 1 with multiple bolts 52 and nuts 63 in the traditional technology.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A municipal water supply and drainage pipeline connection structure, characterized in that: The system includes an annular body (2) fitted onto the pipe body (1) with a clearance fit, and a connecting unit (3) disposed between two pipe bodies (1) to be connected. The connecting unit (3) includes an outer ring (31) fitted to the outer wall of the pipe body (1), an intermediate ring (32) integrally formed with the inner side of the outer ring (31) and located between the two pipe bodies (1), and an inner ring (33) integrally formed with the inner side of the intermediate ring (32). The inner sides of the two annular bodies (2) near one end of each other are provided with an outer annular groove (21) that engages with the outer ring (31). Each of the pipe bodies (1) has an inner annular groove (11) on its inner side that is close to one end, which engages with the end of the inner ring (33). The inner wall of the inner annular groove (11) is fitted and fixed with an inner annular rubber sheet (111) that abuts against the end of the inner ring (33). The outer wall of the pipe body (1) is provided with a positioning hole (12) near the ring body (2). A positioning rod (4) is inserted into the positioning hole (12). The positioning rod (4) is provided with a clamping component (5) for clamping the ring body (2). The two ring bodies (2) are connected by a locking component (6).

2. The municipal water supply and drainage pipeline connection structure according to claim 1, characterized in that: The locking assembly (6) is provided in two sets and symmetrically arranged. Each set of the locking assembly (6) includes a U-shaped block (61) fixed on the outer wall of the ring (2). There are two U-shaped blocks (61) and they are located on the two rings (2) respectively. The locking assembly (6) also includes a connecting post (62) rotatably connected to the U-shaped block (61) and a nut (63) sleeved on the connecting post (62) and threadedly connected.

3. The municipal water supply and drainage pipeline connection structure according to claim 2, characterized in that: A gasket (621) that fits the connecting post (62) with a clearance fit is provided on the connecting post (62), and the gasket (621) is located between the nut (63) and one of the U-shaped blocks (61).

4. The municipal water supply and drainage pipeline connection structure according to claim 3, characterized in that: A rubber plate (622) is fixed to one end of the connecting column (62) away from the rotational connection point between it and the U-shaped block (61), and the diameter of the rubber plate (622) is larger than the diameter of the connecting column (62).

5. A municipal water supply and drainage pipeline connection structure according to claim 3, characterized in that: The clamping assembly (5) includes an arc-shaped rod (51) fixed to one end of the positioning rod (4) away from the positioning hole (12) and a bolt (52) threadedly disposed on the arc-shaped rod (51) and connected to the arc-shaped rod (51). The end of the bolt (52) abuts against the side wall of the ring (2).

6. A municipal water supply and drainage pipeline connection structure according to claim 5, characterized in that: The end of the bolt (52) is fixed with a rubber block (521) that abuts against the side wall of the ring (2).

7. A municipal water supply and drainage pipeline connection structure according to claim 5, characterized in that: The inner wall of the outer annular groove (21) is fitted and fixed with an outer annular rubber sheet (211), and the outer annular rubber sheet (211) abuts against the end of the outer ring (31).

8. A municipal water supply and drainage pipeline connection structure according to claim 5, characterized in that: The longitudinal section of the inner annular groove (11) is V-shaped. The side wall of the inner annular groove (11) away from the pipe body (1) is parallel to the axis of the pipe body (1). The diameter of the inner wall of the inner annular groove (11) near the axis of the pipe body (1) increases from the annular body (2) toward the end away from the annular body (2).

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