Bridge height limiting device for highway engineering

Abstract

The utility model relates to the technical field of highway engineering, and discloses a bridge height limiting device for highway engineering, which comprises a support bottom plate, a contact I, a contact II, an alarm body and a mobile power supply, and the top of the support bottom plate is fixedly connected with a side plate. Compared with the prior art, the height limiting device has the advantages that the motor drives the first belt wheel to rotate and drives the first height limiting plate and the second height limiting plate to adjust the height, when a vehicle collides with the height limiting device of the highway engineering bridge, the sliding plate slides out of the second sliding groove, the first height limiting plate and the second height limiting plate are separated, and the first height limiting plate and the second height limiting plate are prevented from being broken by collision; when a vehicle collides with a first height limiting plate and a second height limiting plate, a second fixing plate is firstly collided, a second contact is made to make contact with a first contact, the first contact, the second contact, the alarm body and the mobile power source form a closed loop, the alarm body is started to remind a driver, and the cost is reduced. And the warning effect is also achieved under the condition that the driver cannot see.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering, in particular to a bridge height limit device for highway engineering. Background Technique

[0002] Highway engineering structures include: subgrade, pavement, bridge, culvert, tunnel, drainage system, safety protection facilities, greening and traffic monitoring facilities, as well as houses, workshops and other service facilities used for construction, maintenance and monitoring. The task of new construction or reconstruction of highways is determined according to the highway network plan. In order to enhance the protection of bridges, it is necessary to limit the height of passing vehicles. However, the commonly used height limit devices will be damaged or even collapse directly when impacted during use, which will cause injuries to personnel. Therefore, a bridge height limit device for highway engineering is proposed.

[0003] The existing bridge height limit devices for highway engineering are inconvenient to adjust the height of the height limit board during use. Moreover, when the vehicle continues to impact the highway bridge height limit device, due to the fixation of the height limit device, it will be damaged, requiring repair or replacement, increasing the cost. And sometimes the height limit device is impacted without the driver's attention, there is no warning effect and it cannot remind the driver, making the device have certain deficiencies. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a bridge height limit device for highway engineering.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a bridge height limit device for highway engineering, including a support bottom plate, a first contact, a second contact, an alarm body and a mobile power supply. A side plate is fixedly connected to the top of the support bottom plate, and a first chute is opened in the side plate. There are two groups of support bottom plates. A fixing frame is fixedly connected to the top of one group of support bottom plates. One end of the fixing frame is fixedly connected to a motor, and the output end of the motor is fixedly connected to a first pulley. A second pulley is rotatably connected to the top of the support bottom plate. A belt body is installed outside the second pulley and the first pulley. A threaded rod is fixedly connected to the top of the second pulley. A slider is threadedly connected to the outside of the threaded rod, and the slider slides in the first chute. A fixing rod is fixedly connected to the top of the group of support bottom plates far from the fixing frame. There are two groups of sliders symmetrically arranged. A first height limit board is rotatably connected to the side of one group of sliders, and a second height limit board is rotatably connected to the side of the other group of sliders. The group of sliders far from the fixing frame is slidably connected to the fixing rod. A first fixing plate is fixedly connected to the second height limit board, and a sliding plate is fixedly connected to the first fixing plate. A second chute is opened in the first height limit board, and the sliding plate slides in the second chute.

[0006] As a further description of the above technical solution:

[0007] Both sides of the height-limiting plate one and the height-limiting plate two are fixedly connected with springs two. One end of each spring two is fixedly connected with a fixing plate two. The contact one is connected to the sides of the height-limiting plate one and the height-limiting plate two, and the contact two is connected to the side of the fixing plate two. The top of the support bottom plate is fixedly connected with a top plate. The alarm body and the mobile power supply are both connected to the top of the top plate. The contact one, the contact two, the alarm body and the mobile power supply are electrically connected.

[0008] As a further description of the above technical solution:

[0009] A connecting frame is fixedly connected to the side of the slider. A spring one is fixedly connected inside the connecting frame. There are two groups of springs one symmetrically arranged. One end of each spring one is fixedly connected to the height-limiting plate one and the height-limiting plate two.

[0010] As a further description of the above technical solution:

[0011] There are multiple groups of springs two symmetrically arranged.

[0012] As a further description of the above technical solution:

[0013] The threaded rod is parallel to the fixed rod.

[0014] As a further description of the above technical solution:

[0015] The threaded rod is parallel to the side plate.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, starting the motor drives the pulley one to rotate, which drives the pulley two to rotate, making the threaded rod rotate to drive the slider to lift and adjust the height, and can drive the height-limiting plate one and the height-limiting plate two to adjust the height. And when the vehicle hits the height-limiting device of the highway engineering bridge, the sliding plate slides out from the chute two, separating the height-limiting plate one and the height-limiting plate two, avoiding the height-limiting plate one and the height-limiting plate two from being broken, and there is no need to repair and replace them, reducing costs.

[0018] 2. In the utility model, before the vehicle hits the height-limiting plate one and the height-limiting plate two, it will first hit the fixing plate two, making the contact two contact with the contact one, forming a closed circuit among the contact one, the contact two, the alarm body and the mobile power supply, and starting the alarm body to remind the driver, which has a warning effect even when the driver cannot see. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a bridge height-limiting device for highway engineering proposed by the utility model Figure 1 ;

[0020] Figure 2 Schematic diagram of the overall structure of a bridge height limit device for highway engineering proposed by the present utility model Figure 2 ;

[0021] Figure 3 A bridge height limit device for highway engineering proposed by the present utility model Figure 1 Enlarged view at A in

[0022] Legend description:

[0023] 1. Support base plate; 2. Side plate; 3. First chute; 4. Fixed frame; 5. Motor; 6. First pulley; 7. Second pulley; 8. Belt body; 9. Threaded rod; 10. Slide block; 11. First height limit plate; 12. Connecting frame; 13. First spring; 14. Second height limit plate; 15. Second chute; 16. First fixing plate; 17. Slide plate; 18. Fixed rod; 19. Second spring; 20. Second fixing plate; 21. First contact; 22. Second contact; 23. Alarm body; 24. Mobile power supply; 25. Top plate. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1 - 3, an embodiment provided by the present utility model: a bridge height limit device for highway engineering, including a support bottom plate 1, a first contact 21, a second contact 22, an alarm body 23 and a mobile power source 24. A side plate 2 is fixedly connected to the top of the support bottom plate 1. A first chute 3 is opened in the side plate 2. There are two groups of support bottom plates 1. A fixed frame 4 is fixedly connected to the top of one group of support bottom plates 1. One end of the fixed frame 4 is fixedly connected to a motor 5. The output end of the motor 5 is fixedly connected to a first pulley 6. A second pulley 7 is rotatably connected to the top of the support bottom plate 1. A belt body 8 is installed outside the second pulley 7 and the first pulley 6. A threaded rod 9 is fixedly connected to the top of the second pulley 7. A slider 10 is threadedly connected to the outside of the threaded rod 9. The slider 10 slides in the first chute 3. A fixed rod 18 is fixedly connected to the top of the group of support bottom plates 1 far from the fixed frame 4. There are two groups of sliders 10 symmetrically arranged. A first height limit plate 11 is rotatably connected to the side of one group of sliders 10. A second height limit plate 14 is rotatably connected to the side of the other group of sliders 10. The group of sliders 10 far from the fixed frame 4 is slidably connected to the fixed rod 18. A first fixing plate 16 is fixedly connected to the inside of the second height limit plate 14. A sliding plate 17 is fixedly connected to the first fixing plate 16. A second chute 15 is opened in the first height limit plate 11. The sliding plate 17 slides in the second chute 15. When a vehicle hits the height limit device of a highway engineering bridge, the sliding plate 17 slides out of the second chute 15, separating the first height limit plate 11 and the second height limit plate 14.

[0026] Both sides of the first height limit plate 11 and the second height limit plate 14 are fixedly connected with second springs 19. One end of each second spring 19 is fixedly connected to a second fixing plate 20. The first contact 21 is connected to the sides of the first height limit plate 11 and the second height limit plate 14. The second contact 22 is connected to the side of the second fixing plate 20. A top plate 25 is fixedly connected to the top of the support bottom plate 1. The alarm body 23 and the mobile power source 24 are both connected to the top of the top plate 25. The first contact 21, the second contact 22, the alarm body 23 and the mobile power source 24 are electrically connected. A connecting frame 12 is fixedly connected to the side of the slider 10. A first spring 13 is fixedly connected to the inside of the connecting frame 12. There are two groups of first springs 13 symmetrically arranged. One end of each first spring 13 is fixedly connected to the first height limit plate 11 and the second height limit plate 14. There are multiple groups of second springs 19 symmetrically arranged. The threaded rod 9 is parallel to the fixed rod 18 and parallel to the side plate 2, facilitating the sliding and lifting of the slider 10 in the first chute 3 to adjust the height.

[0027] Working principle: Start the motor 5 to drive the first pulley 6 to rotate. The first pulley 6 drives the second pulley 7 to rotate through the belt body 8. The second pulley 7 rotates the threaded rod 9 to drive the slider 10 to slide up and down in the first chute 3 to adjust the height. The sliders 10 on both sides can drive the first height-limiting plate 11 and the second height-limiting plate 14 to adjust the height. And when the vehicle hits the height-limiting device of the highway engineering bridge, the slide plate 17 slides out of the second chute 15, separating the first height-limiting plate 11 and the second height-limiting plate 14, avoiding the first height-limiting plate 11 and the second height-limiting plate 14 from being broken, reducing their repair and replacement, and reducing costs. And subsequently, under the action of the first springs 13 on both sides, the first height-limiting plate 11 and the second height-limiting plate 14 can be driven to return to their original positions, and the slide plate 17 slides into the second chute 15. Before the vehicle hits the first height-limiting plate 11 and the second height-limiting plate 14, it will first hit the second fixing plate 20, making the second contact 22 contact with the first contact 21, forming a closed circuit among the first contact 21, the second contact 22, the alarm body 23 and the mobile power supply 24, starting the alarm body 23 to remind the driver, and having a warning effect even when the driver cannot see it.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bridge height limiting device for highway engineering, comprising a supporting base plate (1), a first contact (21), a second contact (22), an alarm body (23) and a mobile power source (24), characterized in that: The top of the support base plate (1) is fixedly connected to a side plate (2), a slide groove (3) is provided in the side plate (2), the support base plate (1) is provided with two groups, one group of the support base plate (1) is fixedly connected to a fixing frame (4) at the top, one end of the fixing frame (4) is fixedly connected to a motor (5), the output end of the motor (5) is fixedly connected to a pulley (6), the top of the support base plate (1) is rotatably connected to a pulley (7), the outer sides of the pulley (7) and the pulley (6) are provided with a belt body (8), the top of the pulley (7) is fixedly connected to a threaded rod (9), the outer side of the threaded rod (9) is threadedly connected to a slider (10), the slider (10) is rotatably connected to the pulley (7), the outer side of the threaded rod (9) is threadedly connected to the ... The support base plate (1) slides in the groove (3), and a group of the support base plate (1) away from the fixed frame (4) is fixedly connected to the top of the fixed rod (18). The slide blocks (10) are symmetrically provided with two groups, one group of the slide blocks (10) is rotatably connected to the limited height plate (11) at the side, and the other group of the slide blocks (10) is rotatably connected to the limited height plate (14) at the side. The group of the slide blocks (10) away from the fixed frame (4) is slidably connected to the fixed rod (18), the limited height plate (14) is fixedly connected to the fixed plate (16), and the fixed plate (16) is fixedly connected to the slide plate (17). The limited height plate (11) is provided with a second slide groove (15), and the slide plate (17) slides in the second slide groove (15).

2. A bridge height limiting device for highway engineering according to claim 1, characterized in that: The sides of the height limiting plate 1 (11) and the height limiting plate 2 (14) are both fixedly connected with spring 2 (19), one end of the spring 2 (19) is fixedly connected with fixing plate 2 (20), the contact 1 (21) is connected to the sides of the height limiting plate 1 (11) and the height limiting plate 2 (14), the contact 2 (22) is connected to the side of fixing plate 2 (20), the top of the supporting bottom plate (1) is fixedly connected with a top plate (25), the alarm body (23) and the mobile power supply (24) are both connected to the top of the top plate (25), and the contact 1 (21), the contact 2 (22), the alarm body (23) and the mobile power supply (24) are electrically connected.

3. A bridge height limiting device for highway engineering according to claim 1, characterized in that: The side of the slider (10) is fixedly connected to a connecting frame (12), and a spring 1 (13) is fixedly connected inside the connecting frame (12). The spring 1 (13) is symmetrically provided with two groups, and one end of the spring 1 (13) is fixedly connected to the height limiting plate 1 (11) and the height limiting plate 2 (14).

4. A bridge height limiting device for highway engineering according to claim 2, characterized in that: The spring 2 (19) is symmetrically provided in multiple groups.

5. The bridge height limiting device for highway engineering according to claim 1 is characterized in that: The threaded rod (9) is parallel to the fixed rod (18).

6. A bridge height limiting device for highway engineering according to claim 1, characterized in that: The threaded rod (9) is parallel to the side plate (2).

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