A F-type socket joint

Abstract

The utility model provides a kind of F type socket joint, including inside concrete pipe, steel sleeve ring, outside concrete pipe and node hoop, wherein: inside concrete pipe is fixedly installed on the inner wall of steel sleeve ring, and outside concrete pipe is fixedly installed on the outer wall of steel sleeve ring, and the node hoop is fixedly installed on the outside of steel sleeve ring connecting point;The utility model steel sleeve ring and the setting of node hoop, two groups of pipeline can be accurately positioned, can be reinforced to joint seam.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking construction technology, and in particular to an F-type socket joint. Background Technology

[0002] In municipal engineering and underground pipeline construction, pipe jacking is a widely used trenchless technology due to its minimal impact on surface traffic and the environment. In this method, precast concrete pipe sections, including inner and outer concrete pipes, are jacked up section by section underground to form the main structure of the tunnel. The performance of the joints between these pipe sections directly determines the waterproof reliability, jacking efficiency, and long-term structural safety of the entire tunnel project. However, existing pipe socket joints still suffer from problems such as the inability to accurately position the two sets of pipes and the inability to reinforce the joints.

[0003] Therefore, it is essential to invent an F-type socket joint. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an F-type socket joint to solve the issues that existing pipe socket joints still suffer from inaccurate positioning between two sets of pipes and the inability to reinforce the joint. An F-type socket joint includes an inner concrete pipe, a steel collar, an outer concrete pipe, and a joint clamp. The inner concrete pipe is fixedly installed on the inner wall of the steel collar, and the outer concrete pipe is fixedly installed on the outer wall of the steel collar. The joint clamp is fixedly installed on the outside of the connection point of the steel collar.

[0005] The steel collar includes a support base, a positioning sleeve, a guide ring, and a sealing strip. The positioning sleeve is fixedly installed at one end of the support base, and the guide ring is fixedly installed on the positioning sleeve. The sealing strip is fixedly installed at the bottom of the positioning sleeve.

[0006] The node hoop includes a package, connection points, and a mating inner wall, with connection points fixedly installed at both ends of the package; the two sets of packages are fixedly connected together through the connection points, and the mating inner wall is fixedly installed on the inner wall of the package.

[0007] The steel collar is made of a single steel metal tube, and the length of the steel collar is longer than both the inner and outer concrete pipes, extending outwards; the positioning sleeve is made of a set of double-layered steel metal rings, and the internal space of the positioning sleeve allows the top of another set of steel collars to be inserted inwards; the guide ring is made of a pair of steel metal rings that are inclined inwards and outwards respectively, and the sealing strip is made of a set of rubber rings.

[0008] The internal enclosure of the node hoop consists of a pair of steel metal structures, which are connected together at the connection points to form a ring-shaped structure. The shape of the inner wall of this fit matches the connection position of the steel collar.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The steel collar of this utility model provides an integrated foundation for the inner and outer concrete pipes through its internal support base. Its positioning sleeve and guide ring work together to achieve precise guidance and smooth insertion of the pipe sections during the jacking process. Simultaneously, the positioning sleeve, in conjunction with the sealing strip, forms a reliable sealed chamber after insertion, effectively preventing water leakage. Furthermore, the steel collar efficiently transmits the jacking thrust between pipe sections and protects the ends of the inner and outer concrete pipes from damage through its protruding design.

[0010] The node hoop of this utility model, through the ring structure formed by the locking of the wrapping body at the connection point, and the inner wall of the hoop that fits tightly with the outer shape of the steel sleeve ring, achieves a tight clamping of the socket joint, thereby significantly enhancing the overall rigidity and structural strength of the connection point, effectively resisting the huge thrust and complex external forces during the jacking process, and preventing damage to the inner and outer concrete pipes in the connection area of ​​the steel sleeve ring due to stress concentration. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a structural schematic diagram of the steel collar of this utility model.

[0013] Figure 3 This is a structural schematic diagram of the node hoop of this utility model.

[0014] In the picture: Inner concrete pipe 1, steel collar 2, supporting base 21, positioning sleeve 22, guide ring 23, sealing strip 24, outer concrete pipe 3, node hoop 4, wrapping body 41, connection point 42, mating inner wall 43. Detailed Implementation

[0015] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] As attached Figure 1 To be continued Figure 3 As shown.

[0017] The present invention provides an F-type socket joint, comprising an inner concrete pipe 1, a steel collar 2, an outer concrete pipe 3, and a joint clamp 4, wherein: the inner concrete pipe 1 is fixedly installed on the inner wall of the steel collar 2, and the outer concrete pipe 3 is fixedly installed on the outer wall of the steel collar 2, and the joint clamp 4 is fixedly installed on the outer side of the connection point of the steel collar 2.

[0018] The steel collar 2 includes a support base 21, a positioning sleeve 22, a guide ring 23, and a sealing strip 24. The positioning sleeve 22 is fixedly installed at one end of the support base 21, and the guide ring 23 is fixedly installed on the positioning sleeve 22. The sealing strip 24 is fixedly installed at the bottom of the positioning sleeve 22.

[0019] The node hoop 4 includes a wrapping body 41, a connection point 42, and a mating inner wall 43, and the two ends of the wrapping body 41 are fixedly installed with connection points 42; the two sets of wrapping bodies 41 are fixedly connected together through the connection points 42, and the mating inner wall 43 is fixedly installed on the inner wall of the wrapping body 41.

[0020] The steel collar 2 is made of a steel metal tube, and the length of the steel collar 2 is longer than the inner concrete pipe 1 and the outer concrete pipe 3, and extends outward; the positioning sleeve 22 is made of a set of double-layered steel metal rings, and the internal space of the positioning sleeve 22 can allow the top of another set of steel collar 2 to be inserted inward; the guide ring 23 is made of a pair of steel metal rings that are inclined inward and outward respectively, and the sealing strip 24 is made of a set of rubber rings.

[0021] The inner enclosure 41 of the node hoop 4 is a pair of steel metal structures, and the enclosure 41 are connected together through the connection point 42 to form a ring structure. The shape of the inner wall 43 of this fit matches the connection position of the steel collar 2.

[0022] The core working principle of this type F socket joint equipment is to guide, seal, and transmit the main force of the pipe section through the steel sleeve ring 2. During the jacking process, the guide ring 23 of the subsequent pipe section first contacts the steel sleeve ring 2 of the previous pipe section for automatic centering; then, its positioning sleeve 22 smoothly fits into the steel sleeve ring 2 of the previous pipe section and compresses the internal sealing strip 24 to form a reliable waterproof seal; at the same time, the huge jacking thrust is continuously transmitted from back to front through the end face of the steel sleeve ring 2, propelling the entire pipeline forward.

[0023] To enhance the structural reliability of the connection point, the node hoop 4 plays a crucial reinforcing role after the socket is inserted. Its two wrapping bodies 41 are locked together through the connection point 42, and the inner wall 43, which matches the shape of the steel collar 2, tightly hugs the outside of the joint to form a high-strength reinforcing ring. This effectively disperses stress and prevents damage to the ends of the inner concrete pipe 1 and the outer concrete pipe 3 under complex loads, thereby ensuring that the entire jacking pipeline can be safely advanced as a continuous and stable whole.

[0024] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An F-type socket joint, characterized in that: It includes an inner concrete pipe (1), a steel collar (2), an outer concrete pipe (3), and a node hoop (4), wherein: the inner concrete pipe (1) is fixedly installed on the inner wall of the steel collar (2), and the outer concrete pipe (3) is fixedly installed on the outer wall of the steel collar (2), and the node hoop (4) is fixedly installed on the outside of the connection point of the steel collar (2).

2. The F-type socket joint as described in claim 1, characterized in that: The steel collar (2) includes a support base (21), a positioning sleeve (22), a guide ring (23) and a sealing strip (24), and the positioning sleeve (22) is fixedly installed at one end of the support base (21), the guide ring (23) is fixedly installed on the positioning sleeve (22); the sealing strip (24) is fixedly installed at the bottom of the positioning sleeve (22).

3. The F-type socket joint as described in claim 1, characterized in that: The node hoop (4) includes a package (41), a connection point (42), and a mating inner wall (43), and the connection point (42) is fixedly installed at both ends of the package (41); the two sets of the package (41) are fixedly connected together through the connection point (42), and the mating inner wall (43) is fixedly installed on the inner wall of the package (41).

4. The F-type socket joint as described in claim 2, characterized in that: The steel collar (2) is made of a steel metal tube, and the length of the steel collar (2) is longer than the inner concrete pipe (1) and the outer concrete pipe (3), and extends outward; the positioning sleeve (22) is made of a set of double-layered steel metal rings, and the internal space of the positioning sleeve (22) is able to allow the top of another set of steel collars (2) to be inserted inward; the guide ring (23) is made of a pair of steel metal rings that are inclined inward and outward respectively, and the sealing strip (24) is made of a set of rubber rings.

5. The F-type socket joint as described in claim 3, characterized in that: The inner enclosure (41) of the node hoop (4) adopts a pair of steel metal structures, and the enclosure (41) is connected together through the connection point (42) to form a ring structure. The shape of the inner wall (43) of the mating is matched with the connection position of the steel collar (2).

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