Temporary height limiting frame for roads and bridges

Abstract

The utility model discloses a road and bridge temporary height limiting frame which comprises a base mechanism, a supporting mechanism is fixedly installed on the top of the base mechanism, a height limiting mechanism is fixedly installed on one side of the supporting mechanism, the supporting mechanism comprises a supporting rod, a screw is rotatably installed in the supporting rod, and the height limiting mechanism is fixedly installed on one side of the supporting rod. The outer wall of the screw is in threaded connection with a displacement block, a motor is fixedly installed at the top of the supporting rod, an output shaft of the motor is fixedly connected to the top of the screw through a coupler, and the motor drives the screw to rotate to change the position of the displacement block in the supporting rod. The height limiting height is changed by changing the position of the height limiting rod on one side of the supporting mechanism, a stable triangular mechanism is formed through cooperation of the sliding plate, the inclined strut and the height limiting rod, and the stability of the height limiting mechanism on one side of the supporting mechanism is guaranteed.

Description

Technical Field

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

[0002] A height limit bridge is a type of transportation facility, mainly used at the entrances of bridges, culverts, tunnels, and some urban roads. Its purpose is to limit the height of passing vehicles, prevent excessively high or overloaded vehicles from entering and causing damage to structures such as bridges and tunnels, and ensure the safety of road infrastructure and pedestrians and vehicles.

[0003] Temporary height limit frame is a type of height limit frame. The design of temporary height limit frame focuses on quick installation and disassembly. It has a light structure and is easy to transport and redeploy. It is especially suitable for short-term construction, temporary traffic control, emergency response to sudden incidents, etc.

[0004] However, in the prior art, the height limit of the temporary height limit pole is usually not adjustable after it is assembled, and it is unable to cope with changes in temporary traffic demand. When it is necessary to temporarily allow taller vehicles to pass after the construction is completed or under special circumstances, the height limit cannot be adjusted to adapt to the new situation. Utility Model Content

[0005] The purpose of the utility model is to provide a temporary height limit frame for roads and bridges, which has the advantage of adjustable height limit, and solves the problem of being unable to cope with changes in temporary traffic needs. When it is necessary to temporarily allow taller vehicles to pass after construction is completed or under special circumstances, the height limit cannot be adjusted to adapt to new situations.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary height limit frame for a road bridge, comprising a base mechanism, a supporting mechanism is fixedly installed on the top of the base mechanism, a height limit mechanism is fixedly installed on one side of the supporting mechanism, the supporting mechanism comprises a support rod, a screw is rotatably installed inside the support rod, a displacement block is threadedly connected to the outer wall of the screw, a motor is fixedly installed on the top of the support rod, and the output shaft of the motor is fixedly connected to the top of the screw through a coupling.

[0007] As a preferred temporary height limit frame for a road bridge of the utility model, slide grooves are provided on both sides of the support rod, and the height limiting mechanism includes a height limiting rod, and diagonal braces are fixedly installed on both sides of the height limiting rod, and a slide plate is fixedly installed on one side of the diagonal brace, and the slide plate is slidably installed inside the slide groove, and the height limiting rod is fixedly installed on one side of the displacement block.

[0008] As a preferred temporary height limit frame for a road bridge of the utility model, the base mechanism includes a mounting seat and a plurality of counterweight blocks, a plurality of limit strips are fixedly mounted on the surface of the mounting seat, a groove with the same geometric shape as the cross-section of the limit strip is opened inside the counterweight block, and the counterweight block is slidably mounted on the outer wall of the mounting seat.

[0009] As a preferred temporary height limit frame for a road bridge of the utility model, a plurality of fixing holes are opened on one side of the limit strip, a limiting hole is opened on one side of the counterweight block, screws are movably installed inside the limiting hole, and the screws are threadedly connected to the inside of the fixing hole.

[0010] As a preferred temporary height limit frame for a road bridge of the utility model, a control panel is fixedly installed on one side of the support rod, a protective cover is rotatably installed on one side of the control panel, and a solar panel is fixedly installed on the top of the support rod.

[0011] As a preferred embodiment of a temporary height limit frame for a road bridge of the utility model, a distance sensor is fixedly installed on one side of the height limit pole.

[0012] As a preferred temporary height limit frame for a road bridge of the utility model, reflective strips are fixedly installed on the front and back sides of the height limit pole, and display boards are fixedly installed on the front and back sides of the diagonal support, and the display boards are specifically LED light boards.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model drives a rotating screw rod through a motor to change the position of the displacement block inside the support rod, thereby changing the position of the height limit rod on one side of the support mechanism to change the height limit, and forms a stable triangular mechanism through the cooperation between the slide plate, the diagonal support and the height limit rod to ensure the stability of the height limit mechanism on one side of the support mechanism, and distributes the stress of the height limit rod on the displacement block to one side of the slide groove through the cooperation between the slide plate and the slide groove, reducing the stress borne by the displacement block and the screw rod, reducing the failure rate, and having the advantage of adjustable height limit, which solves the problem of being unable to cope with changes in temporary traffic needs. After the construction is completed or under special circumstances, when it is necessary to temporarily allow higher vehicles to pass, the height limit cannot be adjusted to adapt to the new situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the base mechanism of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the support mechanism of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the height limiting mechanism of the utility model.

[0019] In the figure: 1. base mechanism; 101. mounting seat; 102. counterweight; 103. limit strip; 104. limit hole; 105. screw; 106. fixing hole; 2. support mechanism; 201. support rod; 202. screw rod; 203. displacement block; 204. motor; 205. control panel; 206. protective cover; 207. slide; 208. solar panel; 3. height limiting mechanism; 301. height limiting rod; 302. skateboard; 303. diagonal brace; 304. distance sensor; 305. reflective strip; 306. display board. DETAILED DESCRIPTION

[0020] See also Figure 1-4 A temporary height limit frame for a road bridge comprises a base mechanism 1, a support mechanism 2 is fixedly installed on the top of the base mechanism 1, a height limit mechanism 3 is fixedly installed on one side of the support mechanism 2, the support mechanism 2 comprises a support rod 201, a screw rod 202 is rotatably installed inside the support rod 201, a displacement block 203 is threadedly connected to the outer wall of the screw rod 202, a motor 204 is fixedly installed on the top of the support rod 201, and the output shaft of the motor 204 is fixedly connected to the top of the screw rod 202 through a coupling

[0021] Further, the left and right sides of the support rod 201 are provided with a slide groove 207, the height limiting mechanism 3 includes a height limiting rod 301, the left and right sides of the height limiting rod 301 are fixedly installed with a diagonal brace 303, one side of the diagonal brace 303 is fixedly installed with a slide plate 302, the slide plate 302 is slidably installed inside the slide groove 207, and the height limiting rod 301 is fixedly installed on one side of the displacement block 203;

[0022] During use, the motor 204 drives the rotating screw 202 to change the position of the displacement block 203 inside the support rod 201, thereby changing the position of the height limiting rod 301 on one side of the support mechanism 2 to change the height limit, and a stable triangular mechanism is formed by the cooperation between the slide plate 302, the diagonal support 303, and the height limiting rod 301 to ensure the stability of the height limiting mechanism 3 on one side of the support mechanism 2, and the cooperation between the slide plate 302 and the slide groove 207 distributes the stress of the height limiting rod 301 on the displacement block 203 to one side of the slide groove 207, reducing the stress on the displacement block 203 and the screw 202, reducing the failure rate, and having the advantage of adjustable height limit, which solves the problem of being unable to cope with changes in temporary traffic needs. After the construction is completed or in special circumstances, when it is necessary to temporarily allow higher vehicles to pass, the height limit cannot be adjusted to adapt to the new situation.

[0023] Furthermore, the base mechanism 1 includes a mounting seat 101 and a plurality of counterweights 102. A plurality of limit bars 103 are fixedly mounted on the surface of the mounting seat 101. A groove having the same cross-sectional geometry as the limit bars 103 is provided inside the counterweight 102. The counterweight 102 is slidably mounted on the outer wall of the mounting seat 101.

[0024] During use, the mounting seat 101 provides a stable base for the device, and the weight of the mounting seat 101 is increased by a plurality of counterweights 102 to increase the wind and earthquake resistance of the device, and the stability of the counterweight 102 after installation is increased by the cooperation between the limit strip 103 and the counterweight 102.

[0025] Furthermore, a plurality of fixing holes 106 are provided on one side of the limiting strip 103, a limiting hole 104 is provided on one side of the counterweight block 102, a screw 105 is movably installed inside the limiting hole 104, and the screw 105 is threadedly connected inside the fixing hole 106;

[0026] During use, the position of the topmost counterweight block 102 is fixed by the cooperation between the limiting hole 104, the screw 105, and the fixing hole 106, so as to prevent the plurality of counterweight blocks 102 from loosening after installation.

[0027] Furthermore, a control panel 205 is fixedly mounted on one side of the support rod 201, a protective cover 206 is rotatably mounted on one side of the control panel 205, and a solar panel 208 is fixedly mounted on the top of the support rod 201;

[0028] During use, the displacement of the displacement block 203 is controlled by the control panel 205, and the protective cover 206 is used to prevent unauthorized personnel from changing the height of the displacement block 203. At the same time, the solar panel 208 provides energy for the device.

[0029] Furthermore, a distance sensor 304 is fixedly installed on one side of the height limiting pole 301;

[0030] During use, the distance sensor 304 detects the height between the height limit pole 301 and the ground, so that the user can adjust the height of the height limit pole 301 accurately.

[0031] Furthermore, the front and back sides of the height limit pole 301 are fixedly installed with a reflective strip 305, and the front and back sides of the diagonal support 303 are fixedly installed with a display board 306, and the display board 306 is specifically an LED light board;

[0032] During use, the reflective strip 305 reflects vehicle lights at night, making the device more eye-catching at night, and the height limit is displayed in real time through the display board 306.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary height-limiting frame for a road bridge, comprising a base mechanism (1), a support mechanism (2) being fixedly mounted on the top of the base mechanism (1), and a height-limiting mechanism (3) being fixedly mounted on one side of the support mechanism (2), characterized in that: The support mechanism (2) comprises a support rod (201), a screw rod (202) being rotatably mounted inside the support rod (201), a displacement block (203) being threadedly connected to the outer wall of the screw rod (202), a motor (204) being fixedly mounted on the top of the support rod (201), and an output shaft of the motor (204) being fixedly connected to the top of the screw rod (202) via a coupling.

2. A temporary height limit frame for a road or bridge according to claim 1, characterized in that: The support rod (201) is provided with a slide groove (207) on both the left and right sides. The height limiting mechanism (3) comprises a height limiting rod (301). The height limiting rod (301) is fixedly provided with an oblique support (303) on both the left and right sides. A slide plate (302) is fixedly provided on one side of the oblique support (303). The slide plate (302) is slidably installed inside the slide groove (207). The height limiting rod (301) is fixedly provided on one side of the displacement block (203).

3. A temporary height limit frame for a road or bridge according to claim 1, characterized in that: The base mechanism (1) comprises a mounting seat (101) and a plurality of counterweights (102); a plurality of limit strips (103) are fixedly mounted on the surface of the mounting seat (101); a groove having the same cross-sectional geometric shape as the limit strips (103) is formed inside the counterweight (102); and the counterweight (102) is slidably mounted on the outer wall of the mounting seat (101).

4. A temporary height limit frame for a road or bridge according to claim 3, characterized in that: A plurality of fixing holes (106) are provided on one side of the limiting strip (103), a limiting hole (104) is provided on one side of the counterweight block (102), a screw (105) is movably installed inside the limiting hole (104), and the screw (105) is threadedly connected inside the fixing hole (106).

5. The temporary height limit frame for a road or bridge according to claim 1, characterized in that: A control panel (205) is fixedly mounted on one side of the support rod (201), a protection cover (206) is rotatably mounted on one side of the control panel (205), and a solar panel (208) is fixedly mounted on the top of the support rod (201).

6. A temporary height limit frame for roads and bridges according to claim 2, characterized in that: A distance sensor (304) is fixedly mounted on one side of the height limiting rod (301).

7. A temporary height limit frame for roads and bridges according to claim 2, characterized in that: Reflective strips (305) are fixedly mounted on both the front and back sides of the height-limiting pole (301), and display boards (306) are fixedly mounted on both the front and back sides of the diagonal brace (303), wherein the display boards (306) are specifically LED light boards.

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