Waterproof rubber ring for reinforced concrete pipe jacking and pipe jacking joint waterproof structure

Abstract

The utility model relates to municipal engineering technical field, concretely is waterproof rubber ring and pipe joint waterproof structure for reinforced concrete pipe, including front section pipe and rear section pipe, and the outer peripheral side of the socket of front section pipe is provided with socket steel ring, and the outer peripheral side of the spigot of rear section pipe is provided with spigot steel ring and wedge rubber ring, and the end face between front section pipe and rear section pipe is provided with gasket assembly, the utility model discloses a pine gasket and rubber ring combination form gasket assembly, and set up between the end face of front section pipe and rear section pipe, realized the even transmission of jacking force and effective water -resisting effect, and the overall sealing of rubber ring whole circle arrangement mode ensures the circumferential direction of pipe joint, avoids appearing waterproof dead angle, simultaneously, the structure integrates the sealing performance of rubber ring and the buffer transmission performance of pine gasket, not only has promoted waterproof effect, still strengthened the structural stability of pipe joint, prolonged the service life of pipe engineering.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, specifically a waterproof rubber ring for reinforced concrete jacking pipes. Background Technology

[0002] Existing reinforced concrete jacking pipes are typically made of C50P8 or higher impermeable concrete, and the pipe section structure itself has good waterproof and impermeable performance. The pipe sections are generally connected by F-type steel sockets or double spigot joints. For F-type steel socket jacking pipes, the outside of the joint is usually equipped with waterproofing measures such as water-swellable rubber, polysulfide sealant, and wedge rubber rings, while the inside of the joint is equipped with polyurethane sealant.

[0003] However, existing technologies have significant drawbacks. The wedge-shaped rubber rings and polysulfide sealant used in reinforced concrete pipe jacking are typically installed manually on-site. This method is highly susceptible to the quality of the wedge-shaped rubber rings themselves and the quality of on-site installation, easily leading to the failure of waterproofing measures on the outside of the pipe jacking joint. Furthermore, the pine wood pads used at the joint connections are ineffective at preventing water seepage, easily creating seepage channels and consequently affecting the overall waterproofing effect and service life of the pipe jacking project. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof rubber ring for reinforced concrete jacking pipes and a waterproof structure for jacking pipe joints, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the first technical solution provided by this utility model is as follows: A waterproof rubber ring for reinforced concrete jacking pipes includes a rubber ring, the cross-sectional shape of which is C-shaped on the left and right sides.

[0006] Preferably, the upper and lower sides of the rubber ring are recessed inward to form grooves.

[0007] Preferably, an elliptical air hole is provided in the middle of the rubber ring.

[0008] The second technical solution provided by this utility model is: A waterproof structure for a reinforced concrete jacking pipe joint includes a front jacking pipe and a rear jacking pipe. A socket steel collar is provided on the outer periphery of the socket of the front jacking pipe, and a spigot steel ring and a wedge-shaped rubber ring are provided on the outer periphery of the spigot of the rear jacking pipe. The spigot steel ring and the wedge-shaped rubber ring are located in the gap between the socket steel collar and the rear jacking pipe. A gasket assembly is provided between the end faces of the front jacking pipe and the rear jacking pipe. The padding assembly includes a pine wood pad and a rubber ring, with the rubber ring arranged in a full circle, and the pine wood pad embedded on the left and right sides of the rubber ring.

[0009] Preferably, the rubber ring extends outward at one-quarter of its circumference to form a rubber strip for fixing the pine wood pad.

[0010] Preferably, a water-swellable rubber strip is provided on the outer periphery of the socket of the front section of the jacking pipe, located inside the steel sleeve of the socket.

[0011] Preferably, a polysulfide sealant is provided between the notch on the inner wall of the rear end of the front jacking pipe and the inner wall of the front end of the rear jacking pipe, and a polysulfide sealant is provided between the notch on the outer wall of the rear end of the front jacking pipe and the inner side of the socket steel collar.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The rubber ring of this invention has a C-shaped cross-section on both sides. This structural design can enhance the fit between the rubber ring and the jacking pipe joint, improve the sealing performance, and the C-shaped cross-section can generate a uniform rebound force when compressed, ensuring that the rubber ring and the jacking pipe always maintain a tight contact, effectively blocking water penetration and improving the waterproof reliability of the jacking pipe joint. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the rubber ring of this utility model; Figure 2 This is a schematic diagram of the jacking pipe structure of this utility model; Figure 3 This is a cross-sectional view of the connection between the rubber ring and the pine wood liner in the jacking pipe of this utility model; Figure 4 This is a top view of the connection between the rubber ring and the pine wood liner in the jacking pipe of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Rubber ring; 11. Oval vent; 12. Rubber strip; 2. Front jacking pipe; 3. Rear jacking pipe; 4. Socket steel collar; 5. Spiral steel ring; 6. Wedge-shaped rubber ring; 7. Pine wood gasket; 8. Water-swellable rubber strip; 9. Polysulfide sealant; 10. Polysulfide sealant. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 As shown: Embodiment 1 of this utility model is as follows: A waterproof rubber ring for reinforced concrete jacking pipe includes a rubber ring 1, the cross-sectional shape of the left and right sides of the rubber ring 1 being C-shaped.

[0018] In this embodiment, the upper and lower sides of the rubber ring 1 are recessed inward to form grooves. This groove structure provides a buffer space for the deformation of the rubber ring when it is subjected to the squeezing force of the top pipe connection, preventing damage to the rubber ring due to excessive compression and extending its service life. At the same time, the grooves also increase the contact area between the rubber ring and the surrounding structure, further improving the sealing and waterproofing effect and reducing the risk of water leakage.

[0019] In this embodiment, an elliptical air hole 11 is provided in the middle of the rubber ring 1, which can significantly improve the extrusion deformation effect of the rubber ring. When the jacking pipe is connected and extrusion pressure is generated, the elliptical air hole can adjust the degree of deformation of the rubber ring through its own contraction and expansion, so that the rubber ring can better adapt to the structural changes of the jacking pipe joint, ensuring that the sealing performance between the rubber ring and the jacking pipe is not affected by deformation, thereby improving the stability of the waterproof effect.

[0020] like Figure 1-4 As shown: Embodiment 2 of this utility model is as follows: A waterproof structure for a reinforced concrete jacking pipe joint includes a front jacking pipe 2 and a rear jacking pipe 3. A socket steel collar 4 is provided on the outer periphery of the socket of the front jacking pipe 2, and a spigot steel collar 5 and a wedge-shaped rubber ring 6 are provided on the outer periphery of the spigot of the rear jacking pipe 3. The spigot steel collar 5 and the wedge-shaped rubber ring 6 are located in the gap between the socket steel collar 4 and the rear jacking pipe 3. A gasket assembly is provided between the end faces of the front jacking pipe 2 and the rear jacking pipe 3. The padding assembly includes a pine wood pad 7 and a rubber ring 1, with the rubber ring 1 arranged in a full circle, and the pine wood pad 7 embedded on the left and right sides of the rubber ring 1.

[0021] As described above, by combining pine wood pads with rubber rings to form a pad assembly, and placing it between the end faces of the front and rear jacking pipes, uniform force transmission and effective water blocking are achieved. The arrangement of the rubber rings around the entire circumference ensures a complete seal in the circumferential direction of the jacking pipe joint, avoiding any waterproof dead corners. At the same time, this structure integrates the sealing performance of the rubber rings and the buffering and transmission performance of the pine wood pads, which not only improves the waterproof effect but also enhances the structural stability of the jacking pipe joint and extends the service life of the jacking pipe project.

[0022] In this embodiment, a rubber strip 12 is formed by extending outward from one-quarter of the circumference of the rubber ring 1 to fix the pine wood pad 7. The rubber strip limits and fixes the pine wood pad, preventing it from shifting or falling off during the pipe jacking process due to the transmission of jacking force or external factors. This ensures the structural integrity and functional stability of the pad assembly, thereby guaranteeing the waterproof effect of the pipe jacking joint and the uniformity of the transmission of jacking force.

[0023] In this embodiment, a water-swellable rubber strip 8 is provided on the outer periphery of the socket of the front section of the jacking pipe 2, located inside the socket steel sleeve 4. The water-swellable rubber strip expands when it comes into contact with water, which can actively fill tiny gaps and further prevent water from seeping through the gap between the socket steel sleeve and the jacking pipe. It works in conjunction with other waterproof structures to significantly improve the overall waterproof capability of the jacking pipe joint and enhance the reliability and redundancy of the waterproof system.

[0024] In this embodiment, a polysulfide sealant 9 is applied between the notch on the inner wall of the rear end of the front jacking pipe 2 and the inner wall of the front end of the rear jacking pipe 3. A polysulfide sealant 10 is applied between the notch on the outer wall of the rear end of the front jacking pipe 2 and the inner side of the socket steel collar 4. Both the polysulfide sealant and the polysulfide sealant have excellent adhesion and sealing properties, effectively filling all gaps and preventing moisture from penetrating from both the inner and outer walls. This double-sealing design further enhances the waterproofing effect of the jacking pipe joint, ensuring that the jacking project maintains good waterproofing performance in complex underground environments for a long time.

[0025] The specific construction process of the above-mentioned Embodiment 2 is as follows: During pipe jacking construction, the socket of the front pipe section 2 is joined to the spigot of the rear pipe section 3. The socket steel collar 4, together with the spigot steel collar 5 and the wedge-shaped rubber ring 6, forms the first waterproof seal on the outer periphery of the pipe joint. The water-swellable rubber strip 8 expands upon contact with water, filling the tiny gaps inside the socket steel collar 4 and enhancing the waterproof effect on the outer periphery.

[0026] In the gasket assembly between the end faces of the front jacking pipe 2 and the rear jacking pipe 3, the rubber strip 12 at a quarter circumference of the rubber ring 1 fixes the pine wood gasket 7. The pine wood gasket 7 evenly transmits the jacking force generated by the pipe connection, avoiding excessive local stress that could lead to structural damage. The rubber ring 1 is arranged around the entire circle, and through its own structural characteristics, it fits tightly against the end face of the jacking pipe, preventing moisture from seeping between the end faces.

[0027] In addition, polysulfide sealant 9 at the inner wall gap at the rear end of the front section of the jacking pipe 2 and polysulfide sealant 10 at the outer wall gap fill the gaps in the inner and outer walls respectively, forming a double-layered sealing barrier. The various waterproof structures work together to block water penetration from different directions, ensuring reliable waterproof performance of the jacking pipe joints and guaranteeing the stable operation of the jacking project.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that modifications may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof rubber ring for reinforced concrete jacking pipes, characterized in that: It includes a rubber ring (1), and the cross-sectional shape of the left and right sides of the rubber ring (1) is C-shaped.

2. The waterproof rubber ring for reinforced concrete jacking pipes according to claim 1, characterized in that: The rubber ring (1) has inwardly recessed grooves on both the upper and lower sides.

3. The waterproof rubber ring for reinforced concrete jacking pipes according to claim 1, characterized in that: The rubber ring (1) has an elliptical air hole (11) in the middle.

4. A waterproof structure for a reinforced concrete pipe jacking joint, characterized in that: The device includes a front jacking pipe (2) and a rear jacking pipe (3). A socket steel collar (4) is provided on the outer periphery of the socket of the front jacking pipe (2). A spigot steel collar (5) and a wedge-shaped rubber ring (6) are provided on the outer periphery of the spigot of the rear jacking pipe (3). The spigot steel collar (5) and the wedge-shaped rubber ring (6) are located in the gap between the socket steel collar (4) and the rear jacking pipe (3). A gasket assembly is provided between the end faces of the front jacking pipe (2) and the rear jacking pipe (3). The padding assembly includes a pine wood pad (7) and a rubber ring (1) as described in any one of claims 1-3, wherein the rubber ring (1) is arranged in a full circle, and the pine wood pad (7) is embedded on the left and right sides of the rubber ring (1).

5. A waterproof structure for a reinforced concrete pipe jacking joint according to claim 4, characterized in that: The rubber ring (1) extends outward at a quarter circumference to form a rubber strip (12) for fixing the pine wood pad (7).

6. A waterproof structure for a reinforced concrete pipe jacking joint according to claim 4, characterized in that: The front section of the jacking pipe (2) is provided with a water-swellable rubber strip (8) located inside the steel collar (4) of the socket on the outer periphery of the socket.

7. A waterproof structure for a reinforced concrete pipe jacking joint according to claim 4, characterized in that: A polysulfide sealant (9) for sealing is provided between the notch on the inner wall of the rear end of the front section jacking pipe (2) and the inner wall of the front end of the rear section jacking pipe (3). A polysulfide sealant (10) for sealing is provided between the notch on the outer wall of the rear end of the front section jacking pipe (2) and the inner side of the socket steel collar (4).

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