Height limiting frame for roads and bridges

Abstract

The utility model discloses a height limiting frame for roads and bridges. The height limiting frame comprises a height limiting frame body, a transverse rod, a display board and a protection structure, sliding grooves are formed in supporting legs of the height limiting frame body, the bottom of the transverse rod is fixedly connected to the upper portion of the height limiting frame body, the display board is fixedly connected to one side of the transverse rod, and the protection structure is arranged on the outer sides of the supporting legs of the height limiting frame body. The protection structure comprises a sliding block, a connecting rod, a spring, a fixing frame, a fixing block and a protection plate. The sliding blocks, the connecting rods, the springs, the fixing frames, the fixing blocks and the protection plates are arranged to form a protection structure, supporting rods of the limiting frame body are protected through the six sets of protection plates, and the situation that the supporting rods are bent due to the fact that a vehicle collides with the limiting frame is reduced; and the protection plate can be disassembled or assembled by rotating the bidirectional threaded rod, so that a worker can replace the damaged protection plate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of height-limiting frames, in particular to a height-limiting frame for roads and bridges. Background Art

[0002] Height limit frames are mainly used for gate-type frames at the entrances of bridges, culverts and tunnels. There are generally two types of height limit frames: fixed height limit frames and adjustable height limit frames. Fixed height limit frames are usually welded from steel structures to protect bridges, culverts and tunnels. Signs will be set on the crossbars to indicate the height limit in meters to alert vehicles. Adjustable height limit frames can adjust the height of the limit rod through an adjustment device when needed.

[0003] Existing height limit frames for roads and bridges are usually composed of cross bars and support bars. The cross bars are used to limit vehicles. When vehicles pass through the height limit frame, the vehicles may collide with the support bars. The vehicle collision will cause the support bars to bend, and the bending of the support bars will affect the passage of subsequent vehicles. Usually, the entire height limit needs to be replaced, which is costly. Therefore, a height limit frame for roads and bridges is provided to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a height-limiting frame for roads and bridges to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a height limit frame for roads and bridges, comprising a height limit frame main body, a slide groove is provided at the supporting legs of the height limit frame main body, a cross bar, the bottom of which is fixedly connected to the top of the height limit frame main body, and a display board, which is fixedly connected to one side of the cross bar.

[0006] A protective structure, which is arranged on the outside of the supporting legs of the height limit frame body, and the protective structure includes a sliding block, a connecting rod, a spring, a fixed frame, a fixed block and a protective plate. The sliding block is slidably connected to the sliding groove of the height limit frame body, one end of the connecting rod is rotatably connected to the sliding block, and the other end of the connecting rod is rotatably connected to the fixed frame, one end of the spring is fixedly connected to the sliding groove of the height limit frame body, and the other end of the spring is fixedly connected to one side of the sliding block, the fixed frame is slidably connected to the fixed block, a fixing groove is provided on one side of the protective plate, the fixed block is slidably connected to the fixing groove of the protective plate, and a threaded groove is provided at the bottom of the fixed block.

[0007] By adopting the above technical solution, the support rods of the limit frame body can be protected by six sets of protection plates, thereby reducing the possibility of the support rods bending due to the collision of the vehicle with the height limit frame.

[0008] Preferably, the bidirectional threaded rod is threadedly connected to the thread groove of the fixed block, and the bidirectional threaded rod is rotatably connected to the fixed frame, and the turntable is fixedly connected to one end of the bidirectional threaded rod.

[0009] By adopting the above technical solution, the protective plate can be disassembled or installed by rotating the bidirectional threaded rod, which makes it convenient for the staff to replace the damaged protective plate.

[0010] Preferably, a limiting rod is fixedly connected in the sliding groove of the height limiting frame body, and the limiting rod is slidably connected to the sliding block, and the limiting rod passes through a hole formed in the center of the spring.

[0011] By adopting the above technical solution, the spring can be limited by the limiting rod to avoid the spring deformation and dislocation.

[0012] Preferably, a sliding rod is fixedly connected inside the fixing frame, and the sliding rod is slidably connected to the fixing block.

[0013] By adopting the above technical solution, the fixed block can be limited by the sliding rod to ensure the stability of the fixed block during movement.

[0014] Preferably, a fixing protrusion is provided at one end of the fixing block, and the fixing protrusion is embedded in the fixing groove of the protective plate.

[0015] By adopting the above technical solution, the stability of the protective plate after installation can be ensured by providing a fixing protrusion.

[0016] Preferably, a rubber pad is provided on one side of the fixing frame, and the rubber pad has the same size as the side surface of the fixing frame.

[0017] By adopting the above technical solution, the rubber pad can be provided to avoid the fixing frame and the supporting legs from colliding and being damaged.

[0018] Preferably, a fixing seat is fixedly connected to the bottom of the height limiting frame body, and an anti-slip protrusion is provided at the bottom of the fixing seat.

[0019] By adopting the above technical solution, the fixing seat can be fixed at the entrance of the road bridge by multiple sets of external bolts, and the stability is high.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: a protective structure is formed by providing a sliding block, a connecting rod, a spring, a fixed frame, a fixed block and a protective plate; the support rod of the limit frame body is protected by six groups of protective plates, thereby reducing the situation where the support rod is bent due to a vehicle collision with the height limit frame; a fixed structure is formed by providing a bidirectional threaded rod, a fixed block and a turntable; the protective plate can be disassembled or installed by rotating the bidirectional threaded rod, which facilitates the staff to replace the damaged protective plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 For this utility model Figure 1 A magnified schematic diagram of part A;

[0023] Figure 3 For this utility model Figure 1 A magnified schematic diagram of part B;

[0024] Figure 4 It is a side structural schematic diagram of the utility model;

[0025] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of part C of FIG.

[0026] In the figure: 1. height limit frame body; 2. cross bar; 3. display board; 4. protection structure; 401. sliding block; 402. connecting rod; 403. spring; 404. fixed frame; 405. fixed block; 406. protective plate; 407. limit rod; 5. two-way threaded rod; 6. turntable; 7. rubber pad; 8. fixed seat; 9. sliding rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The following is combined with Figure 1-5 The utility model is described in further detail.

[0029] See also Figure 1-5 The utility model provides an embodiment: a height limit frame for a road and bridge, comprising a height limit frame main body 1, a slide groove is opened at the supporting leg of the height limit frame main body 1, an electric telescopic rod is arranged inside the supporting leg of the height limit frame main body 1, and the height of the railing can be adjusted by starting the electric telescopic rod, a cross bar 2, the bottom of which is fixedly connected to the top of the height limit frame main body 1, a display board 3, which is fixedly connected to one side of the cross bar 2, and the display board 3 is electrically connected to the height limit frame main body 1. When the height of the railing of the height limit frame main body changes, the height displayed on the display screen will change to prompt passing vehicles.

[0030] A protective structure 4 is arranged on the outer side of the supporting leg of the height limit frame body 1. The protective structure 4 includes a sliding block 401, a connecting rod 402, a spring 403, a fixed frame 404, a fixed block 405 and a protective plate 406. The sliding block 401 is slidably connected to the sliding groove of the height limit frame body 1, one end of the connecting rod 402 is rotatably connected to the sliding block 401, and the other end of the connecting rod 402 is rotatably connected to the fixed frame 404. One end of the spring 403 is fixedly connected to the sliding groove of the height limit frame body 1, and the other end of the spring 403 is fixedly connected to one side of the sliding block 401, the fixed frame 404 is slidably connected to the fixed block 405, a fixed groove is provided on one side of the protective plate 406, the fixed block 405 is slidably connected to the fixed groove of the protective plate 406, and a threaded groove is provided at the bottom of the fixed block 405. The support rod of the limit frame body 1 is protected by six groups of protective plates 406 to reduce the situation where the support rod is bent due to vehicle collision with the height limit frame.

[0031] See also Figure 1 , Figure 3 and Figure 4 , the bidirectional threaded rod 5, which is threadedly connected to the thread groove of the fixed block 405, and the bidirectional threaded rod 5 is rotatably connected to the fixed frame 404, and the turntable 6 is fixedly connected to one end of the bidirectional threaded rod 5. The protective plate 406 can be disassembled or installed by rotating the bidirectional threaded rod 5, which is convenient for the staff to replace the damaged protective plate 406.

[0032] See also Figure 2 A limiting rod 407 is fixedly connected in the slide groove of the height limiting frame body 1, and the limiting rod 407 is slidably connected to the sliding block 401, and the limiting rod 407 passes through the hole formed in the center of the spring 403, and the spring 403 is limited by the limiting rod 407 to avoid deformation and dislocation of the spring 403.

[0033] See also Figure 3 A sliding rod 9 is fixedly connected inside the fixed frame 404, and the sliding rod 9 is slidably connected to the fixed block 405. The fixed block 405 is limited by the sliding rod 9 to ensure the stability of the fixed block 405 during movement.

[0034] See also Figure 3 A fixing protrusion is provided at one end of the fixing block 405, and the fixing protrusion is embedded in the fixing groove of the protective plate 406. The stability of the protective plate 406 after installation is ensured by providing the fixing protrusion.

[0035] See also Figure 3 A rubber pad 7 is provided on one side of the fixing frame 404, and the rubber pad 7 has the same size as the side surface of the fixing frame 404. The rubber pad 7 is provided to prevent the fixing frame 404 from colliding with the supporting leg and being damaged.

[0036] See also Figure 1and Figure 4 The bottom of the height limiting frame body 1 is fixedly connected with a fixing seat 8, and the bottom of the fixing seat 8 is provided with an anti-slip protrusion. The fixing seat 8 can be fixed at the entrance of the road bridge through multiple sets of external bolts, and the stability is high.

[0037] Working principle: First, when the supporting leg of the height limit frame body 1 is hit by a vehicle, the vehicle will exert pressure on the protective plate 406, and the protective plate 406 will move toward the supporting leg side. The movement of the protective plate 406 will drive the fixed frame 404 to move. Since the fixed frame 404 is rotatably connected to the connecting rod 402, and the connecting rod 402 is rotatably connected to the sliding block 401, the movement of the fixed frame 404 will drive the sliding block 401 to move. One end of the spring 403 is fixedly connected to the sliding block 401, and the other end of the spring 403 is fixedly connected to the inner wall of the slide groove of the supporting leg. Therefore, the movement of the sliding block 401 will pull the spring 403 to deform it, and the deformed spring 403 will buffer the impact force of the vehicle, thereby reducing the bending of the supporting leg of the height limit frame body 1;

[0038] Secondly, when it is necessary to replace the damaged protective plate 406, rotate the turntable 6, and the rotation of the turntable 6 drives the two-way threaded rod 5 to rotate. Since the two-way threaded rod 5 is threadedly connected to the fixing block 405, and the fixing block 405 is slidably connected to the sliding rod 9, the rotation of the two-way threaded rod 5 will drive the fixing block 405 to move under the influence of the thread. The movement of the fixing block 405 separates the fixing protrusion at one end of the protective plate 406 from the fixing groove, and then the protective plate 406 can be pulled to complete the disassembly. When it is necessary to install a new protective plate 406, align the fixing groove of the protective plate 406 with the fixing block 405, and then press the protective plate 406 to make the fixing block 405 enter the fixing groove, and then rotate the two-way threaded rod 5 in the opposite direction to drive the fixing block 405 to move to fix the protective plate 406. The operation is simple, and it is convenient for the staff to replace the damaged protective plate 406.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A height-limiting frame for roads and bridges, characterized in that: include: A height limiting frame body (1), wherein a slide groove is provided at a supporting leg of the height limiting frame body (1); A cross bar (2), the bottom of which is fixedly connected to the top of the height-limiting frame body (1); A display board (3), the display board (3) is fixedly connected to one side of the cross bar (2); A protective structure (4) is arranged on the outside of a supporting leg of a height limiting frame body (1), the protective structure (4) comprising a sliding block (401), a connecting rod (402), a spring (403), a fixing frame (404), a fixing block (405) and a protective plate (406), the sliding block (401) is slidably connected to a sliding groove of the height limiting frame body (1), one end of the connecting rod (402) is rotatably connected to the sliding block (401), and the other end of the connecting rod (402) is rotatably connected to the sliding block (401). The end is rotatably connected to the fixed frame (404), one end of the spring (403) is fixedly connected to the sliding groove of the height limiting frame body (1), and the other end of the spring (403) is fixedly connected to one side of the sliding block (401), the fixed frame (404) is slidably connected to the fixed block (405), one side of the protective plate (406) is provided with a fixed groove, the fixed block (405) is slidably connected to the fixed groove of the protective plate (406), and the bottom of the fixed block (405) is provided with a threaded groove.

2. A height limiting frame for roads and bridges according to claim 1, characterized in that: A bidirectional threaded rod (5), the bidirectional threaded rod (5) being threadedly connected to a thread groove of the fixing block (405), and the bidirectional threaded rod (5) being rotationally connected to the fixing frame (404); A rotating disk (6) is fixedly connected to one end of the bidirectional threaded rod (5).

3. The height limiting frame for roads and bridges according to claim 1 is characterized in that: A limiting rod (407) is fixedly connected in the sliding groove of the height limiting frame body (1), and the limiting rod (407) is slidably connected to the sliding block (401), and the limiting rod (407) passes through a hole formed in the center of the spring (403).

4. The height limiting frame for roads and bridges according to claim 2 is characterized in that: A sliding rod (9) is fixedly connected inside the fixed frame (404), and the sliding rod (9) is slidably connected to the fixed block (405).

5. The height limiting frame for roads and bridges according to claim 2 is characterized in that: A fixing protrusion is provided at one end of the fixing block (405), and the fixing protrusion is embedded in the fixing groove of the protective plate (406).

6. The height limiting frame for roads and bridges according to claim 1 is characterized in that: A rubber pad (7) is provided on one side of the fixing frame (404), and the rubber pad (7) has the same size as the side surface of the fixing frame (404).

7. The height limiting frame for roads and bridges according to claim 1 is characterized in that: A fixing seat (8) is fixedly connected to the bottom of the height limiting frame body (1), and an anti-slip protrusion is arranged at the bottom of the fixing seat (8).

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