Protective device for municipal bridge

Abstract

The utility model discloses a municipal bridge protection device which comprises a fixing frame, two sets of connecting bottom plates which are oppositely arranged in parallel are fixedly installed at the bottom of one side of the fixing frame, fixing bolts penetrate through the tops of the connecting bottom plates, and two sets of square grooves which are oppositely arranged in parallel are formed in the side, close to the connecting bottom plates, of the fixing frame. A handle is rotated rightwards to drive a worm to be meshed with a worm gear, so that a threaded rod is rotated, the threaded rod synchronously drives a first protection plate to move upwards through a supporting frame and a sliding block at the moment, the first protection plate is moved upwards, and therefore the overall height of the protection device is adjusted according to the actual situation, and the practicability of the device is improved; and the worm gear and the worm mechanism have self-locking performance, so that the effect of efficiently fixing the first protection plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge protection devices, in particular to a protection device for a municipal bridge. Background Art

[0002] During the municipal bridge construction process, it is necessary to use corresponding protective devices to enclose and protect the bridges under construction to prevent pedestrians from accidentally entering the construction site and getting hurt. Although the existing bridge protective devices can enclose and protect the construction site, most of them have fixed corresponding heights during use. It is difficult to adjust the height of the protective device according to the actual needs of the user. The protective effect is not very ideal, and the traditional protective plate of the bridge protective device is generally an integrated design. When the protective plate is damaged, the entire protective plate needs to be replaced, which is costly.

[0003] To this end, we propose a protective device for municipal bridges. Utility Model Content

[0004] The main purpose of the utility model is to provide a protective device for a municipal bridge, so that the overall height of the protective device can be adjusted according to actual conditions, and the second protective plate can be easily replaced, thereby reducing the use cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A protective device for a municipal bridge, comprising a fixing frame, wherein two sets of relatively parallel connecting bottom plates are fixedly mounted on the bottom of one side of the fixing frame, fixing bolts are passed through the top of the connecting bottom plates, and two sets of relatively parallel square grooves are opened on one side of the fixing frame close to the connecting bottom plates;

[0007] A threaded rod is rotatably connected to the middle of the top of one group of the connecting bottom plates, the top of the threaded rod is rotatably connected to a limit plate, the limit plate is fixedly connected to a fixing frame, the outer thread of the threaded rod is threadably connected to two groups of support frames arranged opposite to each other, one end of the support frame passing through the square groove is fixedly connected to a first protective plate, and the first protective plate is slidably connected to the inside of the fixing frame;

[0008] The fixing frame is fixedly connected to a frame on one side away from the limiting plate, and sliding grooves are provided at both ends of the frame, and a pressure plate is movably connected in the sliding groove. Adjustment bolts are threadedly connected to both ends of the fixing frame, and one end of the adjustment bolt passes through the fixing frame and is fixedly connected to one end of the pressure plate. Four groups of second protective plates of equal size are installed on the inner side of the pressure plate, and a top plate is installed on the top of the second protective plate.

[0009] By adopting the above technical solution, the fixing bolts pass through the connecting bottom plate, and the entire fixing frame is fixedly installed on the ground, thereby improving the stability of the protective device and achieving a better fixing effect;

[0010] By adopting the above technical solution, the overall height of the protective device can be adjusted according to actual conditions, thereby improving the practicality of the device;

[0011] By adopting the above technical solution, loosen the adjusting bolt, when the pressure plate moves in the opposite direction, the top plate and the second protective plate are not restricted by the pressure plate, so the top plate can be removed from the frame, and then the damaged second protective plate can be taken out, thereby facilitating the replacement of the damaged second protective plate. There is no need to replace the traditional integrated protective plate, thereby reducing the cost of use.

[0012] Furthermore, the bottom of the threaded rod is rotatably connected to a square box, and the square box is fixedly connected to a fixing frame.

[0013] Furthermore, a worm wheel is fixedly connected to the lower outer portion of the threaded rod, a worm is rotatably connected to the inner wall of the square box, the worm wheel is meshed with the worm, and one end of the worm passing through the square box is fixedly connected to a handle.

[0014] Furthermore, a fixing rod is fixedly connected to the middle of the top end of the other group of connecting bottom plates, and the top end of the fixing rod is fixedly connected to the bottom end of the limiting plate.

[0015] Furthermore, two groups of sliding blocks arranged opposite to each other are fixedly connected to the outer side of the fixing rod, and one end of the sliding block passes through the square groove and is fixedly connected to the first protective plate.

[0016] By adopting the above technical solution, since the worm wheel and worm mechanism have self-locking property, reverse self-locking can be achieved, that is, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm, so when the rotation stops, it cannot run, thereby achieving the effect of efficiently fixing the first protective plate

[0017] Furthermore, a protrusion and a groove are respectively provided at both ends of the fixing frame, the protrusion and the groove are adapted to each other, and a plurality of groups of reflective tapes are arranged at equal distances on one side of the first protective plate.

[0018] By adopting the above technical solution, since the size of the protrusions and the grooves are adapted to each other, the protrusions and grooves of two sets of protective devices are plugged into each other, and the connection of multiple sets of protective devices can be achieved according to actual usage conditions.

[0019] By adopting the above technical solution, when the vehicle is driving at night, the illumination of the vehicle light has a reflective effect, thereby reminding the driver, reducing the occurrence of accidents and preventing the protective device from being damaged.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] (1) The utility model discloses a protective device for a municipal bridge. Rotating the handle to the right drives the worm and the worm wheel to engage, thereby rotating the threaded rod. At this time, the threaded rod drives the first protective plate to move upward synchronously through the support frame and the slider, so that the first protective plate is moved up. The overall height of the protective device can be adjusted according to actual conditions, thereby improving the practicality of the device. In addition, since the worm wheel and worm mechanism are self-locking, the first protective plate can be efficiently fixed.

[0022] (2) In the protective device for a municipal bridge described in the utility model, when it is necessary to replace a damaged second protective plate, the adjusting bolt is loosened. When the pressure plate moves in the opposite direction, the top plate and the second protective plate are not restricted by the pressure plate. The top plate can be removed from the frame, and then the damaged second protective plate can be taken out, thereby facilitating the replacement of the damaged second protective plate without replacing the traditional integral protective plate, thereby reducing the cost of use.

[0023] (3) The protective device for a municipal bridge described in the utility model plugs the protrusions and grooves of two sets of protective devices into each other, and can realize the connection of multiple sets of protective devices according to actual usage conditions, thereby improving the convenience of connection.

[0024] (4) The protective device for a municipal bridge described in the utility model has multiple groups of reflective tapes, and when vehicles are driving at night, the reflection of vehicle lights has a reflective effect, thereby reminding drivers, reducing the occurrence of accidents, and preventing the protective device from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a front structural schematic diagram of a protective device for a municipal bridge.

[0026] Figure 2 The utility model is a schematic diagram of the back structure of a protective device for a municipal bridge.

[0027] Figure 3 The utility model is a protective device for a municipal bridge Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 The utility model is a schematic diagram of the internal structure of a square box of a protective device for a municipal bridge.

[0029] Figure 5 The utility model is a schematic diagram of the internal structure of the framework of a protective device for a municipal bridge.

[0030] In the figure: 1. fixing frame; 2. connecting bottom plate; 3. fixing bolt; 4. limiting plate; 5. threaded rod; 6. supporting frame; 7. first protective plate; 8. square box; 9. handle; 10. worm; 11. worm gear; 12. square groove; 13. frame; 14. adjusting bolt; 15. slide groove; 16. pressure plate; 17. top plate; 18. second protective plate; 19. fixing rod; 20. slider; 21. bump; 22. groove; 23. reflective tape. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a protective device for a municipal bridge comprises a fixing frame 1, two groups of relatively parallel connecting base plates 2 are fixedly installed on the bottom of one side of the fixing frame 1, a fixing bolt 3 is penetrated on the top of the connecting base plate 2, and two groups of relatively parallel square grooves 12 are opened on the side of the fixing frame 1 close to the connecting base plate 2; a threaded rod 5 is rotatably connected to the middle part of the top end of one group of the connecting base plates 2, and the top end of the threaded rod 5 is rotatably connected to a limiting plate 4, and the limiting plate 4 is fixedly connected to the fixing frame 1, and the threaded rod 5 is externally threadedly connected to two groups of relatively arranged supporting frames 6, and one end of the supporting frame 6 penetrates through the square groove 12 and is fixedly connected to a first protective plate 7, and the first protective plate 7 is slidably connected to the inside of the fixing frame 1; The bottom of the threaded rod 5 is rotatably connected to the square box 8, and the square box 8 is fixedly connected to the fixed frame 1; the bottom of the threaded rod 5 is rotatably connected to the square box 8, and the square box 8 is fixedly connected to the fixed frame 1; the lower outer part of the threaded rod 5 is fixedly connected to the worm wheel 11, and the inner wall of the square box 8 is rotatably connected to the worm 10, the worm wheel 11 is meshed with the worm 10, and one end of the worm 10 passing through the square box 8 is fixedly connected to the handle 9; the other group of the middle top end of the connecting base plate 2 is fixedly connected to a fixing rod 19, and the top end of the fixing rod 19 is fixedly connected to the bottom end of the limiting plate 4; the outer side of the fixing rod 19 is fixedly connected to two groups of oppositely arranged sliders 20, and one end of the slider 20 passing through the square groove 12 is fixedly connected to the first protective plate 7.

[0033] When in use, the fixing bolts 3 pass through the connecting bottom plate 2 to fix the entire fixing frame 1 on the ground, thereby improving the stability of the protective device and achieving a better fixing effect.

[0034] When in use, rotating the handle 9 to the right drives the worm 10 to rotate. Since the worm 10 is meshed with the worm wheel 11, the threaded rod 5 is driven to rotate. Since the support frame 6 is threadedly connected to the threaded rod 5, the slider 20 is slidingly connected to the fixed rod 19, when the support frame 6 moves upward, the support frame 6 and the slider 20 synchronously drive the first protective plate 7 to move upward. When reaching the appropriate position, the handle 9 is stopped, so that the overall height of the protective device can be adjusted according to the actual situation, thereby improving the practicality of the device.

[0035] When in use, since the worm wheel 11 and the worm 10 mechanism are self-locking, reverse self-locking can be achieved, that is, only the worm 10 can drive the worm wheel 11, but the worm wheel 11 cannot drive the worm 10, so when the rotation stops, it cannot operate, thereby achieving the effect of efficiently fixing the first protective plate 7.

[0036] For example, Figure 1 , Figure 5 As shown, the utility model also includes that the fixed frame 1 is fixedly connected to a frame 13 on one side away from the limit plate 4, and slide grooves 15 are provided at both ends inside the frame 13, and a pressure plate 16 is movably connected in the slide groove 15, and both ends of the fixed frame 1 are threadedly connected with an adjusting bolt 14, one end of the adjusting bolt 14 passes through the fixed frame 1 and is fixedly connected to one end of the pressure plate 16, and four groups of second protective plates 18 of equal size are installed on the inner side of the pressure plate 16, and a top plate 17 is installed on the top of the second protective plate 18.

[0037] When in use, loosen the adjusting bolt, and when the pressure plate 16 moves in the opposite direction, the top plate and the second protective plate 18 are no longer restricted by the pressure plate, so the top plate 17 can be removed from the frame, and then the damaged second protective plate 18 can be taken out, thereby facilitating the replacement of the damaged second protective plate 18, without the need to replace the traditional integrated protective plate, thereby reducing the cost of use.

[0038] In order to realize the connection of multiple sets of protection devices, for example, Figure 1 , Figure 2 As shown, the utility model also includes that two ends of the fixing frame 1 are respectively provided with a protrusion 21 and a groove 22, and the protrusion 21 and the groove 22 are adapted to each other.

[0039] During use, since the size of the protrusion 21 and the groove 22 are adapted to each other, the protrusions 21 and the grooves 22 of two sets of protection devices are plugged into each other, and multiple sets of protection devices can be connected according to actual use conditions.

[0040] In order to remind the passing vehicles, for example, Figure 1 As shown, the utility model also includes that one side of the first protective plate 7 is provided with a plurality of groups of reflective tapes 23 arranged at equal distances.

[0041] When in use, a plurality of groups of reflective tapes 23 are provided, and when a vehicle is driving at night, the illumination of the vehicle lights has a reflective effect, thereby reminding the driver, reducing the occurrence of accidents, and preventing the protective device from being damaged.

[0042] It should be noted that the utility model is a protective device for a municipal bridge. When in use, the entire fixing frame 1 should first be fixed to the ground by the fixing bolts 3. When the first protective plate 7 needs to be raised, the handle 9 is rotated rightward to drive the worm 10 to engage with the worm wheel 11, thereby rotating the threaded rod 5. Since the support frame 6 is threadedly connected to the threaded rod 5, the support frame 6 and the slider 20 synchronously drive the first protective plate 7 to move upward. When it reaches the appropriate position, the handle 9 is stopped, so that the overall height of the device is adjusted, and the worm wheel 11 is rotated rightward to engage with the worm wheel 11. The mechanism with the worm 10 is self-locking and can achieve reverse self-locking, that is, only the worm 10 can drive the worm wheel 11, but the worm wheel 11 cannot drive the worm 10, so it cannot operate when the rotation stops; when the second protective plate 18 is damaged and needs to be replaced, loosen the adjusting bolt 14, and at the same time, the pressure plate 16 moves in the slide groove 15 toward the direction of the adjusting bolt 14. At this time, the top plate 17 and the second protective plate 18 are not restricted by the pressure plate 16. Remove the top plate 17 from the frame 13, and then take out the damaged second protective plate 18, and the damaged second protective plate 18 can be replaced.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective device for a municipal bridge, comprising a fixing frame (1), characterized in that: Two groups of relatively parallel connecting bottom plates (2) are fixedly mounted on the bottom of one side of the fixing frame (1), a fixing bolt (3) penetrates the top of the connecting bottom plate (2), and two groups of relatively parallel square grooves (12) are formed on one side of the fixing frame (1) close to the connecting bottom plate (2); A threaded rod (5) is rotatably connected to the middle of the top of one group of the connecting bottom plates (2), the top of the threaded rod (5) is rotatably connected to a limit plate (4), the limit plate (4) is fixedly connected to the fixing frame (1), the threaded rod (5) is externally threadedly connected to two groups of support frames (6) arranged opposite to each other, one end of the support frame (6) passing through the square groove (12) is fixedly connected to a first protective plate (7), and the first protective plate (7) is slidably connected to the inside of the fixing frame (1); The fixed frame (1) is fixedly connected to a frame (13) on one side away from the limit plate (4), and two ends of the frame (13) are provided with slide grooves (15), and a pressure plate (16) is movably connected in the slide groove (15). Both ends of the fixed frame (1) are threadedly connected with adjustment bolts (14), one end of the adjustment bolt (14) passes through the fixed frame (1) and is fixedly connected to one end of the pressure plate (16), and four groups of second protective plates (18) of equal size are installed on the inner side of the pressure plate (16), and a top plate (17) is installed on the top of the second protective plate (18).

2. A protective device for a municipal bridge according to claim 1, characterized in that: The bottom of the threaded rod (5) is rotatably connected to a square box (8), and the square box (8) is fixedly connected to the fixing frame (1).

3. A protective device for a municipal bridge according to claim 2, characterized in that: The lower outer portion of the threaded rod (5) is fixedly connected to a worm wheel (11), the inner cavity wall of the square box (8) is rotatably connected to a worm (10), the worm wheel (11) is meshed with the worm (10), and one end of the worm (10) that passes through the square box (8) is fixedly connected to a handle (9).

4. The protective device for a municipal bridge according to claim 1, characterized in that: A fixing rod (19) is fixedly connected to the middle of the top end of the other group of connecting bottom plates (2), and the top end of the fixing rod (19) is fixedly connected to the bottom end of the limiting plate (4).

5. A protective device for a municipal bridge according to claim 4, characterized in that: Two groups of sliding blocks (20) arranged opposite to each other are fixedly connected to the outside of the fixing rod (19); one end of the sliding block (20) passes through the square groove (12) and is fixedly connected to the first protective plate (7).

6. The protective device for a municipal bridge according to claim 1, characterized in that: The two ends of the fixing frame (1) are respectively provided with a protrusion (21) and a groove (22), the protrusion (21) and the groove (22) are adapted to each other, and one side of the first protective plate (7) is provided with a plurality of groups of reflective tapes (23) arranged at equal distances.

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