Municipal water supply pipeline connecting structure

Abstract

The utility model provides a municipal water supply pipeline connecting structure. The municipal water supply pipeline connecting structure comprises a connecting sleeve, a first sealing ring, a jacking sleeve, a second sealing ring and a pulling assembly. According to the municipal water supply pipeline connecting structure, the connecting sleeve is arranged, and the mounting holes are formed in the two ends of the connecting sleeve. First sealing rings are mounted in the mounting holes, and when pipelines to be butted are mounted in the mounting holes in the two ends of the connecting sleeve respectively, the first sealing rings play a role in first sealing. And jacking sleeves are further installed at the two ends of the connecting sleeve, second sealing rings are arranged between the jacking sleeves and the connecting sleeve, and the second sealing rings abut against the outer side wall of the pipeline, so that the second sealing effect is achieved. When one of the first seal and the second seal fails, a certain sealing effect can be achieved through the other seal. Therefore, the later maintenance and repair rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline laying technical field, concretely relates to a municipal water supply pipeline connecting structure. BACKGROUND

[0002] In the laying process of municipal water supply pipeline, in order to facilitate the storage and transportation of pipeline, the pipeline will be cut into a certain length pipe section, in the laying process, the fixed length pipe section is spliced, and then the pipeline is buried underground by filling soil, and the splicing mode of most pipelines usually adopts welding or hot melting mode. Some pipelines also adopt the way of tongue and groove connection in the splicing process, and the current pipeline connection mode mostly adopts single layer sealing mode, and when the sealing element is damaged or aged, leakage phenomenon is easy to cause. The pipeline connection needs to be repaired and maintained. The poor sealing effect of the pipeline connection causes high repair rate. SUMMARY

[0003] The utility model embodiment provides a municipal water supply pipeline connecting structure, which aims at solving the poor sealing effect of the municipal pipeline laying pipeline in the prior art, and the high repair and maintenance rate.

[0004] To achieve the above object, the utility model adopts the technical scheme of providing a municipal water supply pipeline connecting structure, comprising:

[0005] The connecting sleeve is provided with mounting holes for mounting the pipeline at both ends;

[0006] The first sealing ring is installed on the inner wall of the mounting hole, and is used for realizing the sealing between the pipeline and the connecting sleeve;

[0007] The two top tight sleeves are respectively located at both ends of the connecting sleeve, and the top tight sleeve is sleeved on the outside of the pipeline;

[0008] The second sealing ring is installed on the side wall of the top tight sleeve close to the connecting sleeve, and protrudes from the side surface of the top tight sleeve;

[0009] The pulling assembly is installed between the top tight sleeve and the connecting sleeve, and is used for pulling the top tight sleeve to move towards the connecting sleeve.

[0010] In a possible implementation mode, the second sealing ring is located at the inner circle of the top tight sleeve, and in the free state, the inner diameter of the second sealing ring is smaller than the outer diameter of the pipeline.

[0011] In a possible implementation mode, the connecting sleeve is provided with a resisting ring at both ends, which is used for abutting to the side wall of the second sealing ring.

[0012] In a possible implementation, a guide hole is arranged on the side wall of the compression sleeve and in sliding fit with the outer side wall of the abutting ring.

[0013] In a possible implementation, a guide ring is arranged on the side of the compression sleeve close to the connecting sleeve, and the inner wall of the guide ring is in sliding fit with the outer side wall of the abutting ring.

[0014] In a possible implementation, the connecting sleeve further comprises a supporting ring coaxially arranged with the abutting ring, the abutting ring is sleeved outside the supporting ring, and the abutting ring and the supporting ring form an installation gap for accommodating the pipeline.

[0015] In a possible implementation, the first sealing ring is installed between the abutting ring and the supporting ring, and the first sealing ring comprises a first sealing part installed on the inner wall of the abutting ring and a second sealing part installed outside the supporting ring.

[0016] In a possible implementation, the first sealing part and the second sealing part are provided with sealing protrusions for abutting to the inner wall and the outer wall of the pipeline, respectively.

[0017] In a possible implementation, first flanges are fixedly installed at both ends of the connecting sleeve, second flanges are fixedly installed on the compression sleeve, and the pulling assembly comprises:

[0018] a pulling member penetrating through the first flanges and the second flanges, one end of the pulling member being provided with a limiting part;

[0019] a fastener in threaded connection with the pulling member, the fastener and the limiting part abutting to the outer sides of the first flanges and the second flanges, respectively.

[0020] Compared with the prior art, the scheme shown in the embodiments of the application is provided with a connecting sleeve, mounting holes are arranged at both ends of the connecting sleeve, a first sealing ring is installed in the mounting holes, when the pipelines to be connected are installed in the mounting holes at both ends of the connecting sleeve, the first sealing ring plays a role of first sealing, compression sleeves are further installed at both ends of the connecting sleeve, a second sealing ring is arranged between the compression sleeve and the connecting sleeve and abuts to the outer side wall of the pipeline, thereby playing a role of second sealing. During the pipeline butt joint process, multiple sealing of the pipeline is realized, thereby effectively improving the sealing effect of the pipeline during the butt joint process, and when the first sealing or the second sealing fails, the other sealing can play a certain sealing effect. Therefore, the maintenance and repair rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic view of a municipal water supply pipeline connecting structure provided by the embodiments of the application.

[0022] Figure 2 The side sectional view of the connection between the connecting sleeve and the jacking sleeve is provided for the embodiment of the utility model;

[0023] Figure 3 For Figure 2 The local enlarged view of the A part in the middle.

[0024] Marked for explanation:

[0025] 1, pipeline; 2, connecting sleeve; 21, abutting ring; 22, supporting ring; 23, first flange; 3, jacking sleeve; 31, guide ring; 32, second flange; 4, first sealing ring; 41, first sealing part; 411, sealing protrusion; 42, second sealing part; 5, second sealing ring; 6, pulling assembly; 61, pulling member; 62, fastener. Specific implementation

[0026] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clear and obvious, the utility model will be further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0027] Please see Figure 1 And Figure 2 The municipal water supply pipeline connecting structure provided by the utility model will be described. The municipal water supply pipeline connecting structure comprises a connecting sleeve 2, a first sealing ring 4, a jacking sleeve 3, a second sealing ring 5 and a pulling assembly 6. The connecting sleeve 2 is provided with mounting holes for mounting the pipeline 1 at both ends; the first sealing ring 4 is mounted on the inner wall of the mounting hole, used for realizing the sealing between the pipeline 1 and the connecting sleeve 2; the jacking sleeve 3 is two in number, and the two jacking sleeves 3 are respectively located at both ends of the connecting sleeve 2, and the jacking sleeve 3 is sleeved on the outside of the pipeline 1; the second sealing ring 5 is mounted on the side wall of the jacking sleeve 3 close to the connecting sleeve 2, and is arranged protruding from the side surface of the jacking sleeve 3, and the second sealing ring 5 is attached to the outer side wall of the pipeline 1; the pulling assembly 6 is installed between the jacking sleeve 3 and the connecting sleeve 2, used for pulling the jacking sleeve 3 to move towards the connecting sleeve 2.

[0028] Compared with the prior art, the municipal water supply pipeline connecting structure provided by the embodiment is provided with a connecting sleeve 2, mounting holes are arranged at both ends of the connecting sleeve 2, a first sealing ring 4 is arranged in the mounting holes, when the pipelines 1 to be connected are arranged in the mounting holes at both ends of the connecting sleeve 2, the first sealing ring 4 plays a role of the first sealing. The top pressing sleeves 3 are arranged at both ends of the connecting sleeve 2, the second sealing ring 5 is arranged between the top pressing sleeve 3 and the connecting sleeve 2, and the second sealing ring 5 abuts against the outer side wall of the pipeline 1, so that the role of the second sealing is realized. The multiple sealing of the pipeline 1 is realized in the pipeline 1 connecting process, so that the sealing effect of the pipeline 1 in the connecting process is effectively improved, and when the first sealing or the second sealing fails, the other sealing can play a certain sealing effect. Therefore, the maintenance and repair rate in the later period is reduced.

[0029] Specifically, in the embodiment, when the two pipelines 1 are connected, the end portions of the pipelines 1 are chamfered, the two top pressing sleeves 3 and the second sealing ring 5 are respectively sleeved to the outer sides of the two pipelines 1, the connecting sleeve 2 is connected to one of the pipelines 1, and the corresponding top pressing sleeve 3 is tightened. Finally, the pipeline 1 to be connected is connected to the inside of the connecting sleeve 2, and the corresponding top pressing sleeve 3 is tightened, so that the connection between the two pipelines 1 is completed.

[0030] In some embodiments, the second sealing ring 5 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the second sealing ring 5 is located at the inner circle of the top pressing sleeve 3, and in the free state, the inner diameter of the second sealing ring 5 is smaller than the outer diameter of the pipeline 1. The side of the top pressing sleeve 3 close to the connecting sleeve 2 is concave and is provided with an annular groove for mounting the second sealing ring 5, and the annular groove is located at the inner wall of the top pressing sleeve 3, so that when the second sealing ring 5 is mounted to the end portion of the top pressing sleeve 3, the second sealing ring 5 protrudes from the end face of the top pressing sleeve 3 and the inner wall of the top pressing sleeve 3, and the inner diameter of the second sealing ring 5 is smaller than the outer diameter of the pipeline 1, so that the holding force of the second sealing ring 5 and the pipeline 1 is increased. When the top pressing sleeve 3 and the second sealing ring 5 are sleeved to the side wall of the pipeline 1, and the second sealing ring 5 is extruded by the connecting sleeve 2, the second sealing ring 5 is deformed and held on the outer side of the pipeline 1, so that the friction force between the second sealing ring 5 and the outer wall of the pipeline 1 is increased, and the stability of the relative position of the pipeline 1 and the connecting sleeve 2 is ensured.

[0031] In some embodiments, the connecting sleeve 2 can adopt the structure as shown in Figure 2 . Referring to Figure 2The two ends of the connecting sleeve 2 are provided with a protruding abutting ring 21 for abutting to the side wall of the second sealing ring 5. The two ends of the connecting sleeve 2 are provided with the protruding abutting ring 21, the end of the abutting ring 21 abuts to the side wall of the second sealing ring 5, and the pipe 1 is slidingly arranged inside the abutting ring 21. When the tightening sleeve 3 moves towards the connecting sleeve 2, the second sealing ring 5 on the tightening sleeve 3 can abut to the end of the abutting ring 21 and be tightly held on the outer side wall of the pipe 1 through the extrusion deformation of the abutting ring 21, so as to realize the sealing and fixing of the relative position of the pipe 1.

[0032] In some embodiments, the above-mentioned tightening sleeve 3 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the side wall of the tightening sleeve 3 is provided with a guide hole slidingly matched with the outer side wall of the abutting ring 21. The abutting ring 21 is slidingly arranged inside the guide hole on the tightening sleeve 3, and the relative position between the tightening sleeve 3 and the connecting sleeve 2 can be positioned through the guidance between the abutting ring 21 and the guide hole.

[0033] In some embodiments, the above-mentioned tightening sleeve 3 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the side of the tightening sleeve 3 close to the connecting sleeve 2 is provided with a guide ring 31 protruding, and the inner wall of the guide ring 31 is slidingly matched with the outer side wall of the abutting ring 21. The inner diameter of the guide ring 31 is larger than the outer diameter of the tightening sleeve 3, and the end of the abutting ring 21 is provided with a chamfer for sliding into the guide ring 31. When the tightening sleeve 3 moves towards the connecting sleeve 2, the abutting ring 21 is preferentially slid into the guide ring 31, and the relative position between the connecting sleeve 2 and the tightening sleeve 3 is guided. The connecting sleeve 2 and the tightening sleeve 3 are kept in the coaxial state, avoiding the damage of the pipe 1 or the second sealing ring 5 caused by the inclination of the tightening sleeve 3, and improving the stability in the pipe 1 butt joint process.

[0034] In some embodiments, the above-mentioned connecting sleeve 2 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the connecting sleeve 2 further comprises a support ring 22 coaxially arranged with the abutting ring 21, and the abutting ring 21 is sleeved outside the support ring 22, and the abutting ring 21 and the support ring 22 form a mounting gap for accommodating the pipe 1. When the pipe 1 is mounted into the connecting sleeve 2, the side wall of the pipe 1 is clamped between the support ring 22 and the abutting ring 21, which can guide and support the end of the pipe 1. It prevents the pipe 1 from being deformed after being extruded and affecting the sealing effect.

[0035] In some embodiments, the above-mentioned first sealing ring 4 can adopt the structure as shown in Figure 2 . Referring to Figure 2The first sealing ring 4 is installed between the abutting ring 21 and the supporting ring 22, and the first sealing ring 4 comprises a first sealing part 41 installed on the inner wall of the abutting ring 21 and a second sealing part 42 installed on the outer side of the supporting ring 22. The first sealing ring 4 is installed inside the installation gap and at the root of the installation gap. When the pipe 1 moves to the inside of the installation gap, the side wall of the pipe 1 is located between the first sealing part 41 and the second sealing part 42, and the inner wall and the outer wall of the pipe 1 can be sealed, thereby effectively improving the sealing effect between the pipe 1 and the connecting sleeve 2.

[0036] Specifically, in the embodiment, the cross section of the first sealing ring 4 is in a U-shaped structure. A sealing ring is connected between the first sealing part 41 and the second sealing part 42, and the sealing ring abuts against the root of the installation gap. When the pipe 1 slides into the connecting sleeve 2, the side wall of the pipe 1 slides into the first sealing part 41 and the second sealing part 42, and the first sealing part 41 and the second sealing part 42 are respectively attached to the outer side wall and the inner side wall of the pipe 1, thereby playing a sealing role.

[0037] In some embodiments, the first sealing part 41 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the first sealing part 41 and the second sealing part 42 are provided with sealing protrusions 411 respectively used for abutting against the inner wall and the outer wall of the pipe 1. The sealing protrusions 411 protrude from the side wall of the first sealing part 41 and the second sealing part 42, and the middle part of the sealing protrusions 411 is in a hollow structure. The sealing protrusions 411 are easily elastically deformed, so that the pipe 1 can slide into the first sealing part 41 and the second sealing part 42. The sealing effect between the pipe 1 and the first sealing part 41 and the second sealing part 42 is enhanced by the sealing protrusions 411.

[0038] Specifically, in the embodiment, the inner wall of the abutting ring 21 and the outer side wall of the guiding ring 31 are respectively provided with clamping grooves used for installing the first sealing part 41 and the second sealing part 42, thereby facilitating the positioning of the installation positions of the first sealing part 41 and the second sealing part 42.

[0039] In some embodiments, the pulling assembly 6 can adopt the structure as shown in Figure 2 . Referring to Figure 2The two ends of the connecting sleeve 2 are fixedly provided with first flanges 23, the top pressing sleeve 3 is fixedly provided with second flanges 32, and the pulling assembly 6 comprises a pulling piece 61 and a fastener 62. The pulling piece 61 is arranged through the first flanges 23 and the second flanges 32, one end of the pulling piece 61 is provided with a limiting portion, the fastener 62 is threadedly connected with the pulling piece 61, and the fastener 62 and the limiting portion are respectively abutted against the outer sides of the first flanges 23 and the second flanges 32. The first flanges 23 and the second flanges 32 are correspondingly provided with U-shaped grooves for mounting the pulling piece 61 and the fastener 62, the number of the U-shaped grooves is multiple, and the multiple U-shaped grooves are uniformly and spacedly arranged along the circumferences of the first flanges 23 or the second flanges 32. The pulling piece 61 is a bolt, the fastener 62 is a nut, the pulling piece 61 is simultaneously arranged in the U-shaped grooves on the first flanges 23 and the second flanges 32, and the top pressing sleeve 3 can be pulled to move towards the connecting sleeve 2 by rotating the fastener 62. The structure is simple, and the operation is convenient.

[0040] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A municipal water supply pipe connection structure characterized by comprising: The utility model relates to a pipe connecting device, including: The both ends of connecting sleeve (2) are provided with mounting hole for installing pipeline (1); First sealing ring (4) is installed on the inner wall of mounting hole, is used for realizing the sealing between pipeline (1) and connecting sleeve (2); Two toping sleeves (3) are located at the both ends of connecting sleeve (2) respectively, and the toping sleeve (3) is sleeved on the outside of pipeline (1); Second sealing ring (5) is installed on the side wall of toping sleeve (3) near connecting sleeve (2) side, and the side of toping sleeve (3) is provided with second sealing ring (5), and second sealing ring (5) is attached on the outer side wall of pipeline (1); Pulling assembly (6) is installed between toping sleeve (3) and connecting sleeve (2), and is used for pulling toping sleeve (3) to move in the direction of connecting sleeve (2).

2. The municipal water supply pipe connecting structure according to claim 1, wherein Second sealing ring (5) is located at the inner ring of toping sleeve (3), and the inner diameter of second sealing ring (5) is less than the outer diameter of pipeline (1) in free state.

3. The municipal water supply pipe connecting structure according to claim 1, wherein The both ends of connecting sleeve (2) are provided with abutting ring (21) for abutting to the side wall of second sealing ring (5).

4. The municipal water supply pipe connecting structure according to claim 3, wherein The side wall of toping sleeve (3) is provided with guide hole for sliding fit with the outer side wall of abutting ring (21).

5. The municipal water supply pipe connection structure according to claim 4, wherein The side of toping sleeve (3) near connecting sleeve (2) is provided with guide ring (31), and the inner wall of guide ring (31) is in sliding fit with the outer side wall of abutting ring (21).

6. The municipal water supply pipe connecting structure according to claim 3, wherein Connecting sleeve (2) further includes support ring (22) coaxially arranged with abutting ring (21), and abutting ring (21) is sleeved on the outside of support ring (22), and abutting ring (21) and support ring (22) form installation gap for accommodating pipeline (1).

7. The municipal water supply pipe connection structure according to claim 6, wherein First sealing ring (4) is installed between abutting ring (21) and support ring (22), and first sealing ring (4) includes first sealing part (41) installed on the inner wall of abutting ring (21) and second sealing part (42) installed on the outside of support ring (22).

8. The municipal water supply pipe connection structure according to claim 7, wherein The opposite side of first sealing part (41) and second sealing part (42) is provided with sealing protrusion (411) for abutting to the inner wall and outer wall of pipeline (1) respectively.

9. The municipal water supply pipe coupling structure as claimed in claim 1, wherein The both ends of connecting sleeve (2) are fixedly installed with first flange (23), and the second flange (32) is fixedly installed on toping sleeve (3), and pulling assembly (6) includes: Pulling part (61) is arranged through first flange (23) and second flange (32), and one end of pulling part (61) is provided with limiting part; Fastener (62) is in threaded connection with pulling part (61), and fastener (62) and limiting part abut on the outside of first flange (23) and second flange (32) respectively.

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