Prefabricated cement component for guardrail connection

Abstract

The utility model relates to the technical field of building construction, and provides a guardrail connection prefabricated cement component which comprises a pair of concrete guardrail bodies and a pair of filling pieces, the filling pieces are fixed in the concrete guardrail bodies, and a middle frame is arranged between the concrete guardrail bodies. The tensioning and fixing assembly is arranged between the middle frame and the concrete guardrail body and comprises a pair of embedded parts, the embedded parts are fixed in the side end face of the concrete guardrail body, threaded grooves are formed in the embedded parts, supporting frames are arranged at the two ends of the middle frame, and the supporting frames are attached to the side end face of the concrete guardrail body. By means of the technical scheme, the problem that in the prior art, after collision occurs, due to the fact that connection between a connecting component and a concrete guardrail is unstable, a connecting piece is damaged, and force transmission fails is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a guardrail connected with prefabricated cement components. Background Art

[0002] Concrete anti-collision isolation barriers are widely used on my country's highways due to their low cost and easy maintenance and repair. Concrete barriers have sloped sides. When a vehicle collides, it climbs and turns along the slope, raising its center of gravity and converting its kinetic energy into gravitational potential energy, thereby slowing the vehicle. Concrete barriers have a high inherent gravity and are connected to adjacent concrete barriers via connectors. The moment generated by their own gravity and the connecting force resists the lateral moment of the barrier caused by the collision, preventing the barrier from overturning and preventing vehicles from entering the opposite lane and causing greater damage, thus providing isolation.

[0003] At present, the connection method between concrete guardrails on my country's roads is to insert connecting components into the through holes opened in the concrete guardrails. The concrete guardrails mainly rely on the torque generated by the self-weight of the concrete section and the longitudinal connection force to resist the lateral torque during a collision. In the existing technology, when a collision occurs, the connection between the connecting component and the concrete guardrail is unstable, resulting in damage to the connecting component, thereby making the force transmission ineffective.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model proposes a guardrail connecting prefabricated cement components, which solves the problem in the prior art of the related art that when a collision occurs, the connection between the connecting component and the concrete guardrail is unstable, resulting in damage to the connecting component and failure of force transmission.

[0006] The technical solution of the utility model is as follows:

[0007] A pair of concrete guardrail bodies and a pair of filling pieces, wherein the filling pieces are fixed inside the concrete guardrail bodies;

[0008] An intermediate frame and a tightening and fixing assembly, wherein the intermediate frame is arranged between the concrete guardrail bodies, and the tightening and fixing assembly is arranged between the intermediate frame and the concrete guardrail bodies;

[0009] The tightening and fixing assembly includes a pair of embedded parts, which are fixed in the side end faces of the concrete guardrail body. A threaded groove is provided in the embedded parts. Support frames are provided at both ends of the intermediate frame, and the support frames are attached to the side end faces of the concrete guardrail body.

[0010] As a further technical solution, a pair of first bolts are inserted and connected at one end of the support frame, one end of the first bolts is screwed into the thread groove, and a pair of reinforcement frames are rotatably connected to the surface of the support frame through a pin shaft.

[0011] As a further technical solution, one end of the reinforcement frame is inserted into the filling piece, the surface of the intermediate frame is provided with an external thread layer, and a pair of movable nuts are connected to the external thread layer through threaded cooperation, and a pair of limit sleeves are connected to the sliding sleeve on the surface of the intermediate frame.

[0012] As a further technical solution, the side end face of the limiting sleeve is fitted with the end face of the movable nut, a pair of internal thread blocks are provided at both ends of the upper end of the side surface of the concrete guardrail body, and positioning sleeves are provided at the top and bottom of the concrete guardrail body.

[0013] As a further technical solution, a compression frame is inserted into the positioning sleeve, the lower end of which is supported on the outer end surface of the reinforcement frame, and a pair of second bolts are inserted into the compression frame, one end of which is screwed to the internal thread block.

[0014] As a further technical solution, the cross-section of the connection between the limiting sleeve and the intermediate frame is a rectangular structure.

[0015] As a further technical solution, pipe sleeves are provided at the four corners of the side end surface of the concrete guardrail body, and stabilizing rods are inserted and connected in the pipe sleeves.

[0016] As a further technical solution, the positioning sleeve is in a U-shaped structure as a whole, and the upper end of the pressing frame is in a bent right-angled structure.

[0017] As a further technical solution, the connection between the reinforcement frame and the support frame is a bent transition structure, and the end surface of the reinforcement frame and the end surface of the support frame are located in the same plane.

[0018] The working principle and beneficial effects of the utility model are as follows:

[0019] The utility model is provided with a tightening and fixing assembly. Through the interaction of structures such as embedded parts, threaded grooves, support frames, reinforcement frames, movable nuts, limit sleeves and compression frames, it can be supported on the surface of the concrete guardrail body through a multi-level structure, and the two concrete guardrail bodies can be tightened together. The structure is compact and high in strength, and has good connection stability effect and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is an axonometric sectional view of the utility model;

[0023] Figure 3 For this utility model Figure 2 A partial enlarged view of part A;

[0024] Figure 4 For this utility model Figure 2 A partial enlarged view of part B;

[0025] In the figure: 1. Concrete guardrail body; 2. Filling piece; 3. Intermediate frame; 4. Tightening and fixing assembly; 4-1. Embedded part; 4-2. Threaded groove; 4-3. Support frame; 4-4. First bolt; 4-5. Reinforcement frame; 4-6. External thread layer; 4-7. Moving nut; 4-8. Limiting sleeve; 4-9. Internal thread block; 4-10. Positioning sleeve; 4-11. Pressing frame; 4-12. Second bolt; 5. Pipe sleeve; 6. Stabilizing rod. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown, this embodiment proposes a guardrail connecting prefabricated cement components, including

[0028] A pair of concrete guardrail bodies 1 and a pair of filling pieces 2, wherein the filling pieces 2 are fixed inside the concrete guardrail bodies 1;

[0029] The intermediate frame 3 and the tightening and fixing assembly 4 are arranged between the intermediate frame 3 and the concrete guardrail body 1;

[0030] The tightening and fixing assembly 4 includes a pair of embedded parts 4-1, which are fixed in the side end face of the concrete guardrail body 1. A threaded groove 4-2 is provided in the embedded part 4-1. Support frames 4-3 are provided at both ends of the intermediate frame 3. The support frames 4-3 are attached to the side end face of the concrete guardrail body 1. One end of the support frame 4-3 is plugged into a pair of first bolts 4-4. One end of the first bolt 4-4 is screwed into the threaded groove 4-2. A pair of reinforcement frames 4-5 are connected to the surface of the support frame 4-3 through a pin shaft. One end of the reinforcement frame 4-5 is plugged into the filling member 2. An external thread layer 4-6 is provided on the surface of the intermediate frame 3. The external thread layer 4-6 A pair of movable nuts 4-7 are connected by threaded fitting, and a pair of limiting sleeves 4-8 are connected to the sliding sleeve on the surface of the intermediate frame 3. The side end faces of the limiting sleeves 4-8 fit with the end faces of the movable nuts 4-7. A pair of internal thread blocks 4-9 are provided at both ends of the upper end of the side surface of the concrete guardrail body 1, and a positioning sleeve 4-10 is provided at the top and bottom of the concrete guardrail body 1. A clamping frame 4-11 is inserted and connected in the positioning sleeve 4-10. The lower end of the clamping frame 4-11 is supported on the outer end face of the reinforcement frame 4-5. A pair of second bolts 4-12 are inserted and connected in the clamping frame 4-11. One end of the second bolt 4-12 is screwed and connected to the internal thread block 4-9.

[0031] In this embodiment, in order to achieve the effect of tightening the two concrete guardrail bodies 1 and having a fixed strength, a tightening and fixing component 4 is designed. A filling piece 2 and an embedded piece 4-1 are provided inside the concrete guardrail body 1. A threaded groove 4-2 is provided in the embedded piece 4-1. Support frames 4-3 are provided at both ends of the intermediate frame 3. The support frame 4-3 is used to support between the two concrete guardrail bodies 1. A first bolt 4-4 is inserted into the support frame 4-3, which can be screwed together with the threaded groove 4-2 to fix the support frame 4-3 to the surface of the concrete guardrail body 1. A pair of reinforcement frames 4-5 are rotatably connected to the support frame 4-3 through a pin shaft. The reinforcement frame 4-5 is inserted into the filling piece 2 for reinforcing the connection. A threaded groove 4-2 is provided on the surface of the frame 3, and two movable nuts 4-7 are screwed into the threaded groove 4-2. A limit sleeve 4-8 is set between the support frame 4-3 and the intermediate frame 3. The limit sleeve 4-8 can cover a part of the lower end of the reinforcement frame 4-5 inside, so that the reinforcement frame 4-5 cannot be rotated open. An internal thread block 4-9 is also provided on the side end surface of the concrete guardrail body 1, and a positioning sleeve 4-10 is provided at the top and bottom. A clamping frame 4-11 is inserted in the positioning sleeve 4-10, and the lower end of the clamping frame 4-11 is against the surface of the reinforcement frame 4-5, and a second bolt 4-12 is inserted in the clamping frame 4-11, which is used to be screwed into the internal thread block 4-9 to fix the clamping frame 4-11.

[0032] Furthermore, the cross-sections of the connection points between the limiting sleeves 4-8 and the intermediate frame 3 are all rectangular structures.

[0033] In this embodiment, through the rectangular structure, when the moving nut 4-7 pushes the limiting sleeve 4-8 to move, it can move in a tightly fitted state without loosening.

[0034] Furthermore, pipe sleeves 5 are provided at four corners of the side end surface of the concrete guardrail body 1, and stabilizing rods 6 are inserted and connected in the pipe sleeves 5.

[0035] In this embodiment, by providing a plurality of pipe sleeves 5 , when the concrete guardrail bodies 1 are connected, stabilizing rods 6 can be inserted into the pipe sleeves 5 to enhance the connection strength between the concrete guardrail bodies 1 .

[0036] Furthermore, the positioning sleeve 4-10 is in a U-shaped structure as a whole, and the upper end of the pressing frame 4-11 is in a bent right-angled structure.

[0037] In this embodiment, the pressing frame 4 - 11 can be placed inside through the U-shaped structure, and the top is an open structure, which is easy to install.

[0038] Furthermore, the connection between the reinforcement frame 4-5 and the support frame 4-3 is a bent transition structure, and the end surface of the reinforcement frame 4-5 and the end surface of the support frame 4-3 are located in the same plane.

[0039] In this embodiment, by keeping the reserved portion of the reinforcement frame 4-5 in contact with the surface of the support frame 4-3, the positioning sleeve 4-10 can cover this portion of the structure inside to limit and fix the reinforcement frame 4-5.

[0040] When connection is needed, first insert the stabilizing rod 6 into the pipe sleeve 5, then insert the reinforcement frame 4-5 into the filling piece 2, and after it is tightly fitted, pass the first bolt 4-4 through the support frame 4-3 and screw it into the thread groove 4-2 of the embedded part 4-1, then screw the two moving nuts 4-7, the moving nut 4-7 moves on the outer thread layer 4-6 and pushes the limiting sleeve 4-8, the limiting sleeve 4-8 will put the reinforcement frame 4-5 inside, then take out the clamping frame 4-11 and insert it into the positioning sleeve 4-10, and screw the second bolt 4-12 into the inner thread block 4-9 to fix it to complete the connection and installation.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guardrail connecting prefabricated cement components, characterized in that: include A pair of concrete guardrail bodies (1) and a pair of filling pieces (2), wherein the filling pieces (2) are fixed inside the concrete guardrail bodies (1); An intermediate frame (3) and a tensioning and fixing assembly (4), wherein the intermediate frame (3) is arranged between the concrete guardrail body (1), and the tensioning and fixing assembly (4) is arranged between the intermediate frame (3) and the concrete guardrail body (1); The tightening and fixing assembly (4) comprises a pair of embedded parts (4-1), each of the embedded parts (4-1) being fixed in the side end face of the concrete guardrail body (1), a threaded groove (4-2) being provided in the embedded parts (4-1), and support frames (4-3) being provided at both ends of the intermediate frame (3), and the support frames (4-3) being attached to the side end face of the concrete guardrail body (1).

2. A guardrail connected to prefabricated cement components according to claim 1, characterized in that: One end of the support frame (4-3) is plugged and connected with a pair of first bolts (4-4), one end of the first bolts (4-4) is screwed into the thread groove (4-2), and the surface of the support frame (4-3) is rotatably connected with a pair of reinforcement frames (4-5) via a pin shaft.

3. A guardrail connected to prefabricated cement components according to claim 2, characterized in that: One end of the reinforcement frame (4-5) is inserted and connected in the filling piece (2); an external thread layer (4-6) is provided on the surface of the intermediate frame (3); a pair of movable nuts (4-7) are connected to the external thread layer (4-6) through threaded fitting; and a pair of limiting sleeves (4-8) are slidably connected to the surface of the intermediate frame (3).

4. A guardrail connected to prefabricated cement components according to claim 3, characterized in that: The side end face of the limiting sleeve (4-8) is fitted with the end face of the movable nut (4-7), a pair of internal thread blocks (4-9) are provided at both ends of the upper end of the side surface of the concrete guardrail body (1), and positioning sleeves (4-10) are provided at the top and bottom of the concrete guardrail body (1).

5. The guardrail connected to prefabricated cement components according to claim 4, characterized in that: A pressing frame (4-11) is inserted and connected in the positioning sleeve (4-10), the lower end of the pressing frame (4-11) is supported on the outer end surface of the reinforcement frame (4-5), and a pair of second bolts (4-12) are inserted and connected in the pressing frame (4-11), one end of the second bolt (4-12) is screwed and connected to the internal thread block (4-9).

6. The guardrail connected to prefabricated cement components according to claim 4, characterized in that: The cross-section of the connection between the limiting sleeve (4-8) and the intermediate frame (3) is a rectangular structure.

7. The guardrail connected to prefabricated cement components according to claim 1, characterized in that: Pipe sleeves (5) are provided at four opposite corners of the side end surface of the concrete guardrail body (1), and stabilizing rods (6) are inserted and connected in the pipe sleeves (5).

8. The guardrail connected to prefabricated cement components according to claim 5, characterized in that: The positioning sleeve (4-10) is in a U-shaped structure as a whole, and the upper end of the pressing frame (4-11) is in a bent right-angled structure.

9. The guardrail connected to prefabricated cement components according to claim 2, characterized in that: The connection between the reinforcement frame (4-5) and the support frame (4-3) is a bent transition structure, and the end surface of the reinforcement frame (4-5) and the end surface of the support frame (4-3) are located in the same plane.

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