Waterproof connecting piece for pipe joints of pre-buried pipeline

Abstract

The utility model discloses an embedded pipeline pipe joint waterproof connecting piece which comprises symmetrically-arranged embedded pipelines, a connecting piece body is arranged between the two embedded pipelines, fixing pieces are arranged on the surfaces of the embedded pipelines, a second cylinder is arranged in an inner cavity of the connecting piece body, and a third cylinder is fixedly connected between the second cylinder and the connecting piece body. At the moment, two symmetrical third grooves are formed between the second cylinder and the connecting piece, first cylinders are symmetrically and fixedly arranged at the two ends of the connecting piece, the diameter of the inner ring of each first cylinder is the same as that of the inner ring of the connecting piece, and first threaded grooves are formed in the outer surfaces of the first cylinders. The embedded pipeline connecting piece has the advantages that the embedded pipeline can be fixedly connected through the connecting piece in a simple and convenient connecting mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe jacking joints, in particular to a pre-buried pipe joint waterproof connector. Background Art

[0002] Waterproofing project is a systematic project, which involves various aspects such as waterproofing materials, waterproofing project design, construction technology, and building management. Its purpose is to ensure that the building is not eroded by water, the internal space is not harmed, improve the building's use function and production and living quality, and improve the living environment. When the relevant waterproofing project cables pass through different parts of the project entity or the junction of different materials, all cables need to be passed through pre-buried pipes. After the wiring is completed, the pre-buried pipes are sealed with cement and other adhesive materials.

[0003] In the prior art, a waterproof engineering cable pre-buried pipe sealing structure with patent number N217135067U includes a pre-buried pipe body, a positioning groove and a second threaded rod, a positioning rod is welded and fixed in the pre-buried pipe body, a fixing tube is welded and fixed on the positioning rod, a first rubber pad is screwed in the fixing tube, a connecting tube is welded and fixed in the fixing tube, a fixing frame is welded and fixed in the connecting tube, and a first threaded rod is rotatably connected to the fixing frame. The pre-buried pipe sealing structure is provided with a clamping plate and a limiting groove, and each second bevel gear can drive the corresponding first threaded rod to rotate in the connecting sleeve rod, and then drive each clamping plate to move outward at the same time. At this time, each clamping plate combined with each limiting groove can simultaneously perform separate clamping and positioning work on multiple cables, thereby ensuring the stability and safety of multiple cables working at the same time, thereby ensuring the convenience and efficiency of subsequent addition, subtraction or replacement of cables.

[0004] The two pipes are fixedly connected by the cooperation of the second threaded rod and the threaded groove, and then the connection is sealed by a sealing ring. However, over time, the sealing ring will age and the sealing effect will decrease, making it difficult to ensure the safety of the cables inside the pipe. In addition, in the above structure, multiple second threaded rods need to be twisted to complete the connection of the two pipes, and the process is relatively cumbersome. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a pre-buried pipe joint waterproof connector, which can fix the pre-buried pipe in a simple and convenient connection manner.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-buried pipe joint waterproof connector, comprising symmetrically arranged pre-buried pipes, a connector provided between two of the pre-buried pipes, a fixing member provided on the surface of the pre-buried pipes, a cylinder 2 provided in the inner cavity of the connector, a cylinder 3 fixedly connected between the cylinder 2 and the connector, at which time two symmetrical grooves 3 are formed between the cylinder 2 and the connector, a cylinder 1 symmetrically fixedly provided at both ends of the connector, the inner ring diameter of the cylinder 1 being the same as the inner ring diameter of the connector, and a threaded groove 1 provided on the outer surface of the cylinder 1.

[0007] Optionally, the thickness of the groove three is the same as the wall thickness of the embedded pipe, and a rubber sealing ring two is placed in the groove three.

[0008] Optionally, an annular stopper is fixedly provided on the surface of the embedded pipe near the connecting piece. The cross-section of the stopper is triangular, and two annular grooves are symmetrically opened on its inclined surface. A rubber sealing ring is provided in the annular groove.

[0009] Optionally, the fixing member is provided in a cylindrical shape, and a plurality of anti-slip grooves are provided on its surface in a ring shape.

[0010] Optionally, the inner ring wall of the fixing part is divided into three parts, the diameter of the left inner wall is the same as the outer ring diameter of the embedded pipe, the middle inner wall is set as an annular bevel one, the inclination angle of the annular bevel one is the same as the inclination angle of the bevel of the annular stopper, the diameter of the right inner wall is the same as the outer ring diameter of the cylinder one, and a thread groove two is opened, and the thread groove two can be threadedly matched with the thread groove one.

[0011] Optionally, an epitaxial ring is fixedly provided on the outer end of the fixing member, and grooves 2 are symmetrically opened on both sides of the connecting member. The size of the grooves 2 is the same as that of the epitaxial ring, and a rubber sealing ring 3 is placed in the grooves 2.

[0012] In summary, compared with the prior art, the pre-buried pipe joint waterproof connector provided by the present invention has the following beneficial effects:

[0013] 1. In the present invention, after inserting one end of the embedded pipes on both sides into the groove three, the fixing piece is rotated to make the thread groove two match the thread groove two. As the fixing piece moves on the surface of the embedded pipe, the annular inclined surface one can contact the inclined surface of the block, and the rubber sealing ring one is squeezed to seal the connection gap at this location. As the fixing piece rotates, one end of the embedded pipe can be driven to approach the inner bottom surface of the groove three, and then the outer ring is completely inserted into the groove three. At this time, the embedded pipes on both sides are connected. The overall process is simple and fast.

[0014] 2. In the present invention, after the fixing piece completes the connection between the connecting piece and the pre-buried pipe, the combined gap can be completely sealed by the rubber sealing ring 1, the rubber sealing ring 2 and the rubber sealing ring 3, which can effectively prevent external sewage from entering the pre-buried pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the fixing member of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing member of the present utility model;

[0018] Figure 4 It is an exploded schematic diagram of some parts of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of some parts of the utility model;

[0020] Figure 6 This is a schematic structural diagram of the connector of the utility model;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the connector of the utility model;

[0022] Figure 8 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0023] Figure 9 It is a schematic diagram of the enlarged structure of the utility model A;

[0024] Figure 10 This is an enlarged structural diagram of the utility model B;

[0025] In the figure: 1. Embedded pipe; 2. Connector; 3. Fixing part; 11. Stopper; 111. Groove 1; 12. Rubber sealing ring 1; 13. Sealing ring 2; 21. Cylinder 1; 211. Threaded groove 1; 22. Groove 2; 221. Rubber sealing ring 3; 24. Cylinder 3; 241. Groove 3; 23. Cylinder 2; 31. Anti-slip groove; 312. Annular slope 1; 32. Threaded groove 2; 33. Epitaxial ring. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] refer to Figure 1-10A pre-buried pipe joint waterproof connector includes symmetrically arranged pre-buried pipes 1, a connector 2 is provided between the two pre-buried pipes 1, the connector 2 is used to connect the two pre-buried pipes 1, and can waterproof the position of the connection seam of the two pre-buried pipes 1.

[0028] The connecting piece 2 is cylindrical, and a second cylinder 23 is provided in its inner cavity. The outer diameter of the second cylinder 23 is the same as the inner diameter of the embedded pipe 1, and the inner diameter of the connecting piece 2 is the same as the outer diameter of the embedded pipe 1.

[0029] refer to Figure 7 Cylinder 23 and connecting piece 2 are fixedly connected with cylinder 3 24. At this time, two symmetrical grooves 3 241 are formed between cylinder 23 and connecting piece 2. The thickness of groove 3 241 is the same as the wall thickness of pre-buried pipe 1, which makes it convenient for one end of pre-buried pipe 1 to be inserted into groove 3 241 and snap-fitted. A rubber sealing ring 2 13 is placed in groove 3 241.

[0030] refer to Figure 6 Cylinders 21 are symmetrically fixed at both ends of the connecting member 2. The inner diameter of the cylinder 21 is the same as that of the connecting member 2, and a thread groove 211 is opened on the outer surface of the cylinder 21.

[0031] refer to Figure 5 An annular stopper 11 is fixedly provided on the surface of the pre-buried pipe 1 near the connecting piece 2. The cross-section of the stopper 11 is triangular, and two annular grooves 111 are symmetrically opened on its inclined surface. A rubber sealing ring 12 is provided in the annular groove 111. After the pre-buried pipe 1 is produced, the annular stopper 11 can be sheathed on the surface of the pre-buried pipe 1 and the two are fixed together by hot melt fixing.

[0032] refer to Figure 2 A fixing part 3 is provided on the surface of the embedded pipe 1. The fixing part 3 is cylindrical and has several anti-slip grooves 31 in a ring shape on its surface to facilitate the twisting of the fixing part 3. The fixing part 3 is used to fix the connecting part 2 and the embedded pipe 1 together.

[0033] refer to Figure 3 The inner wall surface of the fixing member 3 is divided into three parts. The diameter of the inner wall surface on the left side is the same as the outer diameter of the embedded pipe 1, so that the fixing member 3 can slide and rotate on the surface of the embedded pipe 1. The inner wall surface in the middle part is set as an annular inclined surface 312. The inclination angle of the annular inclined surface 312 is the same as the inclination angle of the inclined surface of the annular stopper 11. The diameter of the inner wall surface on the right side is the same as the outer diameter of the cylinder 1 21, and a thread groove 2 32 is opened. The thread groove 2 32 can be threadedly matched with the thread groove 1 211 to connect and fix the fixing member 3 and the cylinder 1 21 together.

[0034] refer to Figure 3 、 7 10. An epitaxial ring 33 is fixedly provided at the outer end of the fixing member 3. Grooves 22 are symmetrically provided on both sides of the connecting member 2. The size of the grooves 22 is the same as that of the epitaxial ring 33, so that the epitaxial ring 33 can be inserted into the grooves 22. A rubber sealing ring 321 is placed in the grooves 22.

[0035] Furthermore, after inserting one end of the embedded pipe 1 on both sides into the groove three 241, one end of the embedded pipe 1 contacts the rubber sealing ring 2 13, and then the fixing piece 3 is rotated to make the thread groove 2 32 match the thread groove 2 32. As the fixing piece 3 moves on the surface of the embedded pipe 1, the annular inclined surface 1 312 can be made to contact the inclined surface of the block 11, and the rubber sealing ring 12 is squeezed to seal the connection gap at this location. As the fixing piece 3 rotates, one end of the embedded pipe 1 can be driven to approach the inner bottom surface of the groove three 241, and the rubber sealing ring 2 13 is squeezed to seal the connection gap at this location. As the fixing member 3 continues to rotate, the outer ring 33 is inserted into the groove 22 and the rubber sealing ring 3 221 is squeezed to seal the connection gap at this location. Then the fixing member 3 stops rotating. At this time, the connection between the connecting member 2 and the embedded pipe 1 is completed. The combined gap is completely sealed by the rubber sealing ring 12, the rubber sealing ring 2 13 and the rubber sealing ring 3 221, which can effectively prevent external sewage from entering the embedded pipe 1, and the whole operation process is simple and fast.

[0036] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0037] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0038] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A pre-buried pipe joint waterproof connector, characterized in that: It comprises symmetrically arranged pre-buried pipes (1), a connecting piece (2) is provided between the two pre-buried pipes (1), and a fixing piece (3) is provided on the surface of the pre-buried pipes (1). The inner cavity of the connecting member (2) is provided with a second cylinder (23), and a third cylinder (24) is fixedly connected between the second cylinder (23) and the connecting member (2). At this time, two symmetrical third grooves (241) are formed between the second cylinder (23) and the connecting member (2). Cylinders (21) are symmetrically fixedly provided at both ends of the connecting member (2), the inner diameter of the cylinder (21) is the same as the inner diameter of the connecting member (2), and a thread groove (211) is provided on the outer surface of the cylinder (21).

2. The pre-buried pipe joint waterproof connector according to claim 1, characterized in that: The thickness of the groove three (241) is the same as the wall thickness of the pre-buried pipe (1), and a rubber sealing ring two (13) is placed in the groove three (241).

3. The pre-buried pipe joint waterproof connector according to claim 1, characterized in that: An annular stopper (11) is fixedly provided on the surface of the pre-buried pipe (1) near the connecting piece (2). The cross section of the stopper (11) is triangular, and two annular grooves (111) are symmetrically provided on its inclined surface. A rubber sealing ring (12) is provided in the annular groove (111).

4. The pre-buried pipe joint waterproof connector according to claim 1, characterized in that: The fixing member (3) is arranged in a cylindrical shape, and a plurality of anti-slip grooves (31) are provided on its surface in a ring shape.

5. The pre-buried pipe joint waterproof connector according to claim 1, characterized in that: The inner wall surface of the fixing member (3) is divided into three parts. The diameter of the left inner wall surface is the same as the outer diameter of the embedded pipe (1). The middle inner wall surface is set as an annular inclined surface (312). The inclination angle of the annular inclined surface (312) is the same as the inclination angle of the inclined surface of the annular stopper (11). The diameter of the right inner wall surface is the same as the outer diameter of the cylinder (21). A second thread groove (32) is provided. The second thread groove (32) can be threadedly matched with the first thread groove (211).

6. The pre-buried pipe joint waterproof connector according to claim 1, characterized in that: An outer end of the fixing member (3) is fixedly provided with an epitaxial ring (33), and two grooves (22) are symmetrically opened on both sides of the connecting member (2). The size of the second groove (22) is the same as that of the epitaxial ring (33), and a third rubber sealing ring (221) is placed in the second groove (22).

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