Pipeline butt joint sealing structure for water supply and drainage construction

Abstract

The utility model belongs to the technical field of water supply and drainage construction, and particularly relates to a pipeline butt joint sealing structure for water supply and drainage construction, which comprises drainage pipes, first sealing rings are embedded in the inner walls of the ends, close to each other, of the two drainage pipes, and a first sealing ring is fixedly sleeved on the outer side of the right end of the drainage pipe on the left side. A plurality of clamping grooves are annularly formed in the outer edge of the left side of the first sealing ring, and an annular groove is formed in the right side of the first sealing ring. In the butt joint process of two adjacent drainage pipes, the fixing ring fixedly arranged on the left side wall of the second sealing ring can be inserted into the annular groove correspondingly formed in the right side wall of the first sealing ring, and the width of the fixing ring and the width of the annular groove are gradually increased from left to right, so that when the fixing ring and the annular groove are in butt joint, the sealing effect is good. The extrusion effect on the second sealing ring can be achieved, and the first sealing ring is matched, so that double sealing between the adjacent drainage pipes is achieved conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply and drainage construction, in particular to a pipeline butt sealing structure for water supply and drainage construction. Background Art

[0002] The construction of water supply pipelines is the whole process of locating the water supply pipelines, digging trenches, laying pipes, joints, covering soil, pressure testing, flushing, disinfection and site cleaning. Among them, the sealing connection between pipes is more important. In the process of pipe assembly, the butt sealing structure is needed to ensure the sealing of the pipe interface.

[0003] In the Chinese utility model patent with publication number CN219571175U, a pipe docking structure for municipal water supply and drainage construction is disclosed. By equidistantly arranging fixing mechanisms on the surface of the second connection plate, when the fixing rod is inserted into the corresponding hole, the card block will be ejected into the card slot under the elastic action of the spring, so that the first pipe and the second pipe can be quickly installed. When the first pipe and the second pipe are blocked, the personnel can pull the card block upward to separate the bottom of the card block from the inside of the card slot, so that the first pipe and the second pipe are separated. During this replacement, maintenance and disassembly process, the personnel do not need to use external tools to disassemble the device, thereby improving the convenience of the personnel in docking and installing the first pipe and the second pipe to a certain extent;

[0004] After searching, it is found that although the pipe docking mechanism proposed in the above-mentioned comparative documents increases the convenience of connecting and disassembling pipes to a certain extent, the above-mentioned docking mechanism only has a single-layer sealing structure, and there is no squeezing function between adjacent pipes. Under high water pressure, the pipe connection is still prone to leakage, and the sealing effect is weak. Therefore, it is urgent to improve the existing pipe docking sealing structure for water supply and drainage construction, and provide a pipe docking sealing structure for water supply and drainage construction. Utility Model Content

[0005] The purpose of the utility model is to provide a pipe butt sealing structure for water supply and drainage construction with a reasonable design, simple structure, double sealing effect and improved sealing strength at pipe joints, in order to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pipe butt sealing structure for water supply and drainage construction comprises a drainage pipe, wherein the inner walls of one end of the two drainage pipes close to each other are both inlaid with a first sealing ring, the right end outer side fixing sleeve of the left drainage pipe is provided with a first sealing ring, the left outer edge of the first sealing ring is provided with a plurality of grooves in a ring shape, the right side of the first sealing ring is provided with an annular groove, the left end outer side fixing sleeve of the right drainage pipe is provided with a second sealing ring, the left side wall of the second sealing ring is fixed with a sealing assembly, the circumference of the second sealing ring is provided with a plurality of groups of locking assemblies in a ring shape, and the plurality of groups of locking assemblies are arranged in a one-to-one correspondence with the plurality of grooves.

[0008] As a preferred embodiment, the width of the annular groove is arranged to increase from left to right, and a plurality of positioning holes are provided in a ring shape on the inner wall of the annular groove.

[0009] As a preferred embodiment, the sealing assembly includes a fixing ring, a second sealing ring and a fixing column. The fixing ring is welded and fixed on the left outer wall of the second sealing ring. The width of the fixing ring is set to decrease from right to left. The inner wall and the outer wall of the fixing ring are bonded with the second sealing ring. A plurality of the fixing columns are fixed in a ring shape on the left side of the fixing ring.

[0010] As a preferred implementation, the fixing ring and the annular groove are adapted to each other, and the plurality of positioning holes and the plurality of fixing columns are arranged in a one-to-one correspondence.

[0011] As a preferred implementation, the second sealing ring and the first sealing ring are both made of elastic rubber material.

[0012] As a preferred embodiment, the locking assembly includes a movable rod, a threaded rod and a block. The movable rod is slidably located inside the outer edge of the second sealing ring. The longitudinal section of the movable rod is "Z"-shaped. The threaded rod bearing is connected to the right outer wall of the second sealing ring. One end of the movable rod close to the drain pipe is threadedly sleeved on the outside of the threaded rod, and a block is fixedly connected to the inner wall of the other end of the movable rod.

[0013] As a preferred implementation, the clamping block and the clamping groove are adapted to each other, and the interface between the two is inclined, and the clamping block is clamped and connected with the first sealing ring through the clamping groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the solution of the utility model:

[0016] In the process of butt-jointing two adjacent drain pipes, the fixing ring fixedly provided on the left side wall of the second sealing ring can be inserted into the annular groove correspondingly provided on the right side wall of the first sealing ring. Since the widths of both the fixing ring and the annular groove are arranged to increase from left to right, when the two are butt-jointed, the second sealing ring can be squeezed and cooperated with the first sealing ring to facilitate double sealing between adjacent drain pipes.

[0017] After the first sealing ring and the second sealing ring are fitted together, one end of the fixing column can be inserted into the positioning hole to position the two drainage pipes so as to facilitate stable alignment of the card slot and the card block. Then, the threaded rod can be manually rotated to control the movable rod to drive the card block to move so that the card block is inserted into the inner side of the card slot. Since the interface between the card block and the card slot is inclined, the first sealing ring can be pressed to the right during the insertion of the card block to facilitate tightening the first sealing ring and the second sealing ring, which can further improve the sealing effect of the pipe connection and avoid leakage at the connection due to excessive water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0019] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of the utility model;

[0020] Figure 2 This is a three-dimensional right-side structural schematic diagram of the utility model;

[0021] Figure 3 It is a three-dimensional right-side structural schematic diagram of the first sealing ring of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall left-side structural view of the sealing assembly of the utility model;

[0023] Figure 5 It is a front view cross-sectional structural diagram of the first sealing ring and the second sealing ring of the utility model in a docking state;

[0024] Figure 6 It is a right side structural schematic diagram of the second sealing ring and the threaded rod of the utility model;

[0025] Figure 7 It is a front view cross-sectional structure schematic diagram of the utility model in a state where the first sealing ring and the second sealing ring are separated.

[0026] In the figure:

[0027] 1. Drain pipe; 2. First sealing ring; 3. First sealing ring; 4. Card groove; 5. Annular groove; 6. Positioning hole; 7. Second sealing ring; 8. Sealing assembly; 81. Fixed ring; 82. Second sealing ring; 83. Fixed column; 9. Locking assembly; 91. Movable rod; 92. Threaded rod; 93. Card block. DETAILED DESCRIPTION

[0028] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0029] like Figure 1-7 As shown, the utility model shows a pipe butt sealing structure for water supply and drainage construction, which includes a drainage pipe 1. The inner walls of the ends of the two drainage pipes 1 close to each other are both inlaid with a first sealing ring 2. The right end of the left drainage pipe 1 is provided with a first sealing ring 3 as a fixed sleeve on the outside. The left outer edge of the first sealing ring 3 is provided with a plurality of grooves 4 in a ring shape. The right side of the first sealing ring 3 is provided with an annular groove 5. The left end of the right drainage pipe 1 is provided with a second sealing ring 7 as a fixed sleeve on the outside. The left side wall of the second sealing ring 7 is fixed with a sealing assembly 8. The circumference of the second sealing ring 7 is provided with a plurality of locking assemblies 9 in a ring shape. The plurality of locking assemblies 9 are arranged in a one-to-one correspondence with the plurality of grooves 4.

[0030] On the basis of the above structure, the width of the annular groove 5 is set to increase from left to right, and a plurality of positioning holes 6 are opened in a ring shape on the inner wall of the annular groove 5 .

[0031] Based on the above structure, the sealing assembly 8 includes a fixing ring 81, a second sealing ring 82 and a fixing column 83. The fixing ring 81 is welded and fixed on the left outer wall of the second sealing ring 7. The width of the fixing ring 81 is set to decrease from right to left. The inner wall and the outer wall of the fixing ring 81 are bonded with the second sealing ring 82. A plurality of fixing columns 83 are fixed in a ring shape on the left side of the fixing ring 81.

[0032] In this embodiment, multiple fixing columns 83 correspond one-to-one to multiple positioning holes 6. By inserting one end of the fixing column 83 into the corresponding positioning hole 6, the two drain pipes 1 can be positioned to facilitate stable alignment of the card slot 4 and the corresponding locking assembly 9.

[0033] On the basis of the above structure, the fixing ring 81 and the annular groove 5 are adapted to each other, and the plurality of positioning holes 6 and the plurality of fixing columns 83 are arranged in a one-to-one correspondence.

[0034] On the basis of the above structure, the second sealing ring 82 and the first sealing ring 2 are both made of elastic rubber material.

[0035] In this embodiment, since the widths of the fixing ring 81 and the annular groove 5 are both arranged to increase from left to right, when the two are connected, an extrusion effect can be achieved on the second sealing ring 82, and in cooperation with the first sealing ring 2, double sealing between adjacent drain pipes 1 can be achieved.

[0036] On the basis of the above structure, the locking assembly 9 includes a movable rod 91, a threaded rod 92 and a block 93. The movable rod 91 is slidably located inside the outer edge of the second sealing ring 7. The longitudinal section of the movable rod 91 is in a "Z" shape. The threaded rod 92 is bearing-connected to the right outer wall of the second sealing ring 7. One end of the movable rod 91 close to the drain pipe 1 is threadedly sleeved on the outer side of the threaded rod 92, and a block 93 is fixedly connected to the inner wall of the other end of the movable rod 91.

[0037] On the basis of the above structure, the clamping block 93 and the clamping groove 4 are adapted to each other, and the interface between the two is inclined. The clamping block 93 is clamped and connected with the first sealing ring 3 through the clamping groove 4 .

[0038] In this embodiment, the movable rod 91 is controlled to move by rotating the threaded rod 92, and the block 93 is inserted into the corresponding slot 4. Since the interface between the block 93 and the slot 4 is inclined, the first sealing ring 3 can be pressed to the right during the insertion of the block 93, which facilitates the compression between the first sealing ring 3 and the second sealing ring 7, and can further improve the sealing effect of the connection between adjacent drain pipes 1.

[0039] The working principle of the utility model is as follows:

[0040] When in use, firstly, two adjacent drain pipes 1 are butted together, and the fixing ring 81 fixed on the left side wall of the second sealing ring 7 can be inserted into the corresponding annular groove 5 on the right side wall of the first sealing ring 3, and the plurality of fixing columns 83 are respectively inserted into the plurality of corresponding positioning holes 6, such as Figure 5 and Figure 7 As shown, since the widths of the fixing ring 81 and the annular groove 5 are both set to increase from left to right, when the two are butted, the second sealing ring 82 bonded to the inner and outer walls of the fixing ring 81 can be squeezed, and the first sealing ring 2 can be used to achieve double sealing between adjacent drain pipes 1;

[0041] After the two drain pipes 1 are initially docked and the first sealing ring 3 and the second sealing ring 7 are tightly fitted, the multiple threaded rods 92 can be rotated in sequence to control the movable rod 91 to drive the block 93 to move and insert the block 93 into the inner side of the slot 4. Since the interface between the block 93 and the slot 4 is inclined, during the insertion of the block 93, pressure can be applied to the first sealing ring 3 to the right to facilitate the squeezing between the first sealing ring 3 and the second sealing ring 7, and the first sealing ring 2 and the second sealing ring 82 are further compressed, which can further improve the sealing effect of the connection between the two adjacent drain pipes 1, avoid leakage at the pipe connection due to excessive water pressure, and make the sealing more efficient.

[0042] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A pipe joint sealing structure for water supply and drainage construction, comprising a drainage pipe (1), characterized in that: The inner walls of the ends of the two drainage pipes (1) close to each other are both inlaid with a first sealing ring (2); the outer fixed sleeve of the right end of the left drainage pipe (1) is provided with a first sealing ring (3); the left outer edge of the first sealing ring (3) is provided with a plurality of grooves (4) in an annular shape; the right side of the first sealing ring (3) is provided with an annular groove (5); the outer fixed sleeve of the left end of the right drainage pipe (1) is provided with a second sealing ring (7); the left side wall of the second sealing ring (7) is fixed with a sealing component (8); the circumference of the second sealing ring (7) is provided with a plurality of locking components (9) in an annular shape; the plurality of locking components (9) are arranged in a one-to-one correspondence with the plurality of grooves (4).

2. A pipe butt sealing structure for water supply and drainage construction according to claim 1, characterized in that: The width of the annular groove (5) is arranged to increase from left to right, and a plurality of positioning holes (6) are provided in an annular shape on the inner wall of the annular groove (5).

3. A pipe butt sealing structure for water supply and drainage construction according to claim 2, characterized in that: The sealing assembly (8) comprises a fixing ring (81), a second sealing ring (82) and a fixing column (83); the fixing ring (81) is welded and fixed on the left outer wall of the second sealing ring (7); the width of the fixing ring (81) is arranged to decrease from right to left; the second sealing ring (82) is bonded to the inner wall and the outer wall of the fixing ring (81); and a plurality of fixing columns (83) are fixed in an annular shape on the left side of the fixing ring (81).

4. A pipe butt sealing structure for water supply and drainage construction according to claim 3, characterized in that: The fixing ring (81) and the annular groove (5) are adapted to each other, and the plurality of positioning holes (6) and the plurality of fixing columns (83) are arranged in a one-to-one correspondence.

5. The pipe butt sealing structure for water supply and drainage construction according to claim 4, characterized in that: The second sealing ring (82) and the first sealing ring (2) are both made of elastic rubber material.

6. The pipe butt sealing structure for water supply and drainage construction according to claim 1, characterized in that: The locking assembly (9) comprises a movable rod (91), a threaded rod (92) and a clamping block (93); the movable rod (91) is slidably located inside the outer edge of the second sealing ring (7); the longitudinal section of the movable rod (91) is in a "Z" shape; the threaded rod (92) is bearing-connected to the right outer wall of the second sealing ring (7); one end of the movable rod (91) close to the drain pipe (1) is threadedly sleeved on the outer side of the threaded rod (92); and the clamping block (93) is fixedly connected to the inner wall of the other end of the movable rod (91).

7. A pipe butt sealing structure for water supply and drainage construction according to claim 6, characterized in that: The clamping block (93) and the clamping groove (4) are adapted to each other, and the interface between the two is inclined. The clamping block (93) is clamped and connected with the first sealing ring (3) via the clamping groove (4).

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