Municipal water supply and drainage pipeline connecting structure

Abstract

The utility model discloses a municipal water supply and drainage pipeline connecting structure, and belongs to the technical field of drainage pipelines. A municipal water supply and drainage pipeline connecting structure comprises a connecting pipe, fixing cylinders are arranged at the two ends of the connecting pipe, mounting assemblies are arranged at the tops of the fixing cylinders, and sealing assemblies are arranged on the inner walls of the fixing cylinders, so that the complexity caused by flange connection or hot melting and glue welding is effectively avoided, and the stability between clamped pipelines is excellent; in addition, the circumferential outer wall of the drainage pipe can be sealed in a layered mode through the rubber strip and the first rubber sleeve, then the better sealing effect is achieved, the threaded ring can be rotated to move outwards, in the process, the inner diameter of the second rubber sleeve with the conical section can be shrunk due to abutting of the threaded sleeve, and therefore the sealing effect is better. Therefore, the double-sealing effect is achieved, the sealing performance is improved, and water leakage at the joint of the drainage pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, and more specifically to a municipal water supply and drainage pipe connection structure. Background Art

[0002] Municipal drainage pipes refer to the pipe network used in urban drainage systems, which are mainly used to discharge rainwater, sewage and wastewater, ensure the normal operation of the city's drainage system, and prevent the occurrence of problems such as flooding.

[0003] The municipal water supply and drainage pipe connection structure refers to the connecting components or structures used to connect different parts or different pipes in the municipal drainage pipe system. It is mainly used to connect multiple drainage pipes to extend the length of the drainage pipes.

[0004] The existing municipal water supply and drainage pipe connections are mostly fixed by welding flanges. When performing butt installation or disassembly, external tools are usually required to assist in installation, which is time-consuming and laborious. There are also methods of connecting two pipes by glue or heat welding, but the connection strength of heat welding is low, and debonding often occurs after long-term use, which undoubtedly brings great trouble to the actual pipe butt installation;

[0005] Moreover, the existing drainage pipe connection structure usually uses a single rubber ring for sealing or directly connects two pipes for sealing, which results in the pipe connection structure having an unsatisfactory sealing effect. Long-term use can easily lead to water leakage at the interface due to poor sealing effect.

[0006] In view of this, we propose a municipal water supply and drainage pipe connection structure. Utility Model Content

[0007] 1. Technical problems to be solved

[0008] The purpose of the utility model is to provide a municipal water supply and drainage pipe connection structure to solve the problems raised in the above background technology.

[0009] 2. Technical solution

[0010] A municipal water supply and drainage pipe connection structure comprises a connecting pipe, both ends of the connecting pipe are provided with fixing cylinders, the top of the fixing cylinder is provided with an installation assembly, the installation assembly comprises a connecting box, the inner wall of the fixing cylinder is provided with a sealing assembly, and the sealing assembly comprises a fixing ring.

[0011] Preferably, a rotating block is provided on the top of the connection box, a fixing bolt is provided on the top of the rotating block, a connecting rod is provided on the bottom of the rotating block, and the connecting rod is connected to a bevel gear 1 after extending into the interior of the connection box.

[0012] Preferably, a screw is rotatably connected to the inner wall of the connection box, and a bevel gear 2 meshing with the bevel gear 1 is fixedly sleeved on the circumferential outer wall of the screw.

[0013] Preferably, a movable sleeve is sleeved on the circumferential outer wall of the screw rod, arc-shaped clamping plates are arranged at the bottom of a plurality of the movable sleeves, and a rubber strip is arranged on the inner wall of the arc-shaped clamping plates.

[0014] Preferably, a groove body matching the arc-shaped clamping plate is formed on the inner wall of the fixing cylinder, and a threaded groove is formed on the side wall of the fixing cylinder.

[0015] Preferably, a threaded ring is threadedly sleeved on the inner wall of the threaded groove, and a connecting rod is provided on the outer wall of the threaded ring.

[0016] Preferably, a rubber sleeve 1 is connected between the plurality of fixing rings, a rubber sleeve 2 is provided on the side wall of the fixing ring on one side, and the rubber sleeve 2 has a conical cross-section.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the utility model are as follows: when two drain pipes are butt-jointed and installed, the two drain pipes can be first inserted into the corresponding two fixed cylinders respectively, and then the fixing bolt on the top of the rotating block can be loosened, and then the rotating block can be rotated to make the bevel gear 1 at the bottom of the rotating block drive the screw rod carrying the bevel gear 2 to rotate, so that the two arc-shaped clamping plates can move in phase, and the drain pipe is pressed and fixed by the two arc-shaped clamping plates. After the drain pipe is clamped and fixed, the rotating block is screwed and fixed to the top of the connection box again by the fixing bolt, so as to realize stable clamping of the drain pipe. This method effectively avoids the cumbersomeness brought by flange connection or hot melt and glue welding, and the stability between the pipes after clamping is also excellent;

[0019] Moreover, in the process of clamping the drain pipe with multiple arc clamping plates, the multiple rubber strips on the outer walls of the multiple arc clamping plates will first press against the circumferential outer wall of the rubber sleeve one, and the rubber strips and the rubber sleeve one will perform a layered sealing on the circumferential outer wall of the drain pipe, thereby achieving a more outstanding sealing effect. Moreover, after the drain pipe is inserted and clamped, the threaded ring can be rotated and moved outward. During this process, the rubber sleeve two with a conical cross-section will shrink its inner diameter due to the pressure of the threaded sleeve, thereby fitting and pressing against the circumferential outer wall of the drain pipe exposed to the outside again, thereby achieving a double sealing effect. During this process, the stability of the drain pipe after docking can also be better ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the installation assembly structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the cutaway structure of the fixed cylinder of the utility model;

[0023] Explanation of reference numerals in the figure: 100, connecting pipe; 200, fixing cylinder; 210, connecting box; 211, rotating block; 212, fixing bolt; 213, bevel gear one; 214, screw rod; 215, bevel gear two; 216, movable sleeve; 217, arc-shaped clamping plate; 218, rubber strip; 220, groove body; 230, threaded groove; 231, threaded ring; 232, connecting rod; 240, fixing ring; 241, rubber sleeve one; 242, rubber sleeve two. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] See also Figure 1-3 , the utility model provides a technical solution:

[0028] A municipal water supply and drainage pipe connection structure includes a connecting pipe 100, fixed cylinders 200 are arranged at both ends of the connecting pipe 100, a mounting assembly is arranged on the top of the fixed cylinder 200, the mounting assembly includes a connecting box 210, a sealing assembly is arranged on the inner wall of the fixed cylinder 200, the sealing assembly includes a fixing ring 240, and two fixing rings 240 are installed on the inner wall of the fixed cylinder 200 by welding.

[0029] Specifically, a rotating block 211 is disposed on the top of the connection box 210 , a fixing bolt 212 is disposed on the top of the rotating block 211 , a connecting rod is disposed on the bottom of the rotating block 211 , and the connecting rod extends into the interior of the connection box 210 and is connected to a bevel gear 213 .

[0030] Furthermore, the inner wall of the connecting box 210 is rotatably connected with a screw rod 214, and the outer circumferential wall of the screw rod 214 is fixedly sleeved with a bevel gear 215 meshing with the bevel gear 1 213, so as to drive the multiple arc-shaped clamping plates 217 to move in phase.

[0031] Furthermore, a movable sleeve 216 is sleeved on the circumferential outer wall of the screw rod 214, and an arc-shaped clamping plate 217 is arranged at the bottom of the plurality of movable sleeves 216. A rubber strip 218 is arranged on the inner wall of the arc-shaped clamping plate 217, so as to form a layered seal on the circumferential outer wall of the drain pipe by using the rubber strip 218 in cooperation with the rubber sleeve 241, thereby improving its sealing effect.

[0032] Furthermore, a groove body 220 matching with the arc-shaped clamping plate 217 is formed on the inner wall of the fixing tube 200 , and a thread groove 230 is also formed on the side wall of the fixing tube 200 .

[0033] It is worth mentioning that a threaded ring 231 is threadedly sleeved on the inner wall of the threaded groove 230, and a connecting rod 232 is provided on the outer wall of the threaded ring 231, which is convenient for moving the threaded ring 231 outward for a certain distance so that it can press the end of the rubber sleeve 242 with a conical cross-section to fit the exposed circumferential outer wall of the drain pipe, thereby further improving its sealing effect.

[0034] It is worth noting that a rubber sleeve 1 241 is connected between the plurality of fixing rings 240 , and a rubber sleeve 242 is disposed on the side wall of one fixing ring 240 , and the rubber sleeve 242 has a conical cross-section.

[0035] Working principle: When two drain pipes are to be docked and installed, the two drain pipes can be first inserted into the corresponding two fixed cylinders 200, and then the fixing bolt 212 on the top of the rotating block 211 can be loosened. Then, the rotating block 211 is rotated to make the bevel gear 1 213 at the bottom of the rotating block 211 drive the screw rod 214 carrying the bevel gear 215 to rotate, so that the two arc clamping plates 217 can move in phase, and the two arc clamping plates 217 are used to press and fix the drain pipe. After the drain pipe is clamped and fixed, the rotating block 211 is screwed and fixed to the top of the connecting box 210 again by the fixing bolt 212, so as to achieve stable clamping of the drain pipe. This method effectively avoids the cumbersomeness brought by flange connection or hot melt and glue welding, and the stability between the pipes after clamping is also excellent;

[0036] Moreover, in the process of clamping the drain pipe by multiple arc clamping plates 217, the multiple rubber strips 218 on the outer walls of the multiple arc clamping plates 217 will first press against the circumferential outer wall of the rubber sleeve 241, and the rubber strips 218 and the rubber sleeve 241 will perform a layered sealing on the circumferential outer wall of the drain pipe, thereby achieving a more outstanding sealing effect. Moreover, after the drain pipe is inserted and clamped, the threaded ring 231 can be rotated and moved outward. During this process, the rubber sleeve 242 with a conical cross-section will shrink its inner diameter due to the pressure of the threaded sleeve 216, so that it will fit and press against the circumferential outer wall of the drain pipe exposed to the outside again, thereby achieving a double sealing effect. During this process, the stability of the drain pipe after docking can also be better ensured.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A municipal water supply and drainage pipe connection structure, comprising a connecting pipe (100), characterized in that: The connecting tube (100) is provided with a fixing tube (200) at both ends, the fixing tube (200) is provided with a mounting assembly at the top, the mounting assembly comprises a connecting box (210), and the inner wall of the fixing tube (200) is provided with a sealing assembly, the sealing assembly comprises a fixing ring (240).

2. A municipal water supply and drainage pipe connection structure according to claim 1, characterized in that: A rotating block (211) is arranged on the top of the connection box (210), a fixing bolt (212) is arranged on the top of the rotating block (211), a connecting rod is arranged on the bottom of the rotating block (211), and the connecting rod extends into the interior of the connection box (210) and is connected to a bevel gear 1 (213).

3. A municipal water supply and drainage pipe connection structure according to claim 2, characterized in that: The inner wall of the connection box (210) is rotatably connected to a screw rod (214), and the outer circumferential wall of the screw rod (214) is fixedly sleeved with a second bevel gear (215) meshing with the first bevel gear (213).

4. A municipal water supply and drainage pipe connection structure according to claim 3, characterized in that: A movable sleeve (216) is sleeved on the circumferential outer wall of the screw rod (214), a plurality of movable sleeves (216) are provided with arc-shaped clamping plates (217) at the bottom, and a rubber strip (218) is provided on the inner wall of the arc-shaped clamping plates (217).

5. A municipal water supply and drainage pipe connection structure according to claim 4, characterized in that: The inner wall of the fixing cylinder (200) is provided with a groove body (220) matching the arc-shaped clamping plate (217), and the side wall of the fixing cylinder (200) is also provided with a thread groove (230).

6. A municipal water supply and drainage pipe connection structure according to claim 5, characterized in that: A threaded ring (231) is threadedly sleeved on the inner wall of the threaded groove (230), and a connecting rod (232) is provided on the outer wall of the threaded ring (231).

7. A municipal water supply and drainage pipe connection structure according to claim 6, characterized in that: A rubber sleeve 1 (241) is connected between the plurality of fixing rings (240), and a rubber sleeve 2 (242) is arranged on the side wall of one side of the fixing ring (240), wherein the cross-section of the rubber sleeve 2 (242) is conical.

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