CN220813548U

CN220813548U - Municipal bridge height limiting device

Info

Publication number: CN220813548U
Application number: CN202322432168.7U
Authority: CN
Inventors: 戴毅冲
Original assignee: Jiangxi Yunmai Construction Engineering Co ltd
Current assignee: Jiangxi Yunmai Construction Engineering Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-19
Anticipated expiration: 2033-09-07

Abstract

The utility model relates to the technical field of bridge height limiting frames and discloses a municipal bridge height limiting device which comprises a device body, wherein the device body comprises a first support, a second support and a base, limiting grooves are formed in the first support and the second support, a lifting assembly is arranged in the second support and comprises a motor, a worm and a worm wheel, one end of the motor is connected with the worm and is rotationally connected to a rotating shaft, the worm is in meshed connection with the worm wheel, a first threaded rod is in threaded connection with the middle of the worm wheel, one end of the first threaded rod is fixedly connected with the height limiting frame, a sliding sleeve is arranged in one end of the height limiting frame and is in sliding connection with a sliding rod, bases are arranged at the bottoms of the first support and the second support, an inserting block is arranged on the lower end face of the first support and is rotationally connected to an inserting groove formed in the upper end face of the base, stable lifting of the height limiting frame can be realized, the bases can be rapidly disassembled, and time is saved.

Description

Municipal bridge height limiting device

Technical Field

The utility model relates to the technical field of bridge height limiting frames, in particular to a municipal bridge height limiting device.

Background

The prior municipal bridge height limiting device is only provided with a limited girder on a frame in a fixed mode, when an ultrahigh vehicle passes through, the whole device can be impacted greatly, the whole device can be damaged when the collision occurs, and the ultrahigh vehicle is not easy to pass through, so that the municipal bridge height limiting device which is convenient for the vehicle to pass through when the ultrahigh accident occurs is required to be designed.

The prior art patent provides a municipal bridge limit for height device for CN217810653U patent, and microprocessor control through the remote controller work, microprocessor control driving motor work, driving motor drive the inside threaded rod of inside groove and rotate to drive limit for height cover and threaded rod threaded connection of frame tip, drive limit for height and measure the whole lift of frame, install the scale in the front of support frame simultaneously, with the high different limit requirement that satisfies of the high demand of adjusting limit for height of frame.

However, the inventor finds that certain defects exist in the height limiting device when the height limiting device is used, the height limiting device is not stable enough to lift through a threaded rod, the height limiting frame is easy to shake when wind power is large, the height limiting frame can be damaged by tilting, long-time use of the height limiting frame is not facilitated, the height limiting device is lack of quick disassembly of a bracket, most of the existing height limiting frames are fastened through bolts, rust is easily caused in rainwater soaking after long-time use, disassembly is difficult, time is wasted, vehicle blockage is easily caused, and the municipal bridge height limiting device is improved and upgraded.

Disclosure of utility model

The utility model aims to provide a municipal bridge height limiting device which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a municipal bridge height-limiting device, includes the device body, the device body contains first support, second support and base, the spacing groove that first support and second support inside all offered, the inside lifting unit that is equipped with of second support, lifting unit contains motor, worm and worm wheel, motor one end is connected with worm and worm rotation and connects in the axis of rotation, the worm meshing is connected with the worm wheel, worm wheel middle part threaded connection has first threaded rod, first threaded rod one end fixedly connected with limit for height frame, limit for height frame one end inside is equipped with sliding sleeve and sliding sleeve sliding connection on the slide bar, first support and second support bottom all are equipped with the base, the terminal surface is equipped with plug block and plug block rotation under the first support and connects on the jack groove that the base up end was equipped with, base one side is equipped with the second threaded rod.

Preferably, the sliding rod and the first threaded rod are respectively arranged on the limiting grooves in the first bracket and the second bracket.

Preferably, the worm and the worm wheel are arranged on the limiting plate, and the rotating shaft is connected inside the limiting plate.

Preferably, the upper end and the lower end of the sliding rod are respectively provided with a fixed block, and the fixed blocks are fixedly connected inside the limiting groove.

Preferably, the upper end face of the height limiting frame is provided with a height detector.

Preferably, the first support is provided with an inserting rod in the middle of the inserting block, the inserting rod is connected to a slot formed in the upper end of the base, and the inserting slot is formed in a guide slot formed in the upper end face of the base.

Preferably, the anti-slip knob and the pressing plate are respectively arranged at two ends of the second threaded rod, the anti-slip knob drives the second threaded rod to be in threaded connection with the base, and the pressing plate is connected to the outer wall of the first bracket through the second threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the motor in the second bracket is driven to work, the motor drives the worm to rotate on the rotating shaft, then the worm is meshed with the worm wheel to rotate, then the middle part of the worm wheel is in threaded connection with the first threaded rod to drive the upper end height limiting frame to lift, and meanwhile, the other end of the height limiting frame is internally connected with the sliding sleeve to be in sliding connection fit on the sliding rod, so that the height limiting frame is driven to stably lift, self-locking can be realized under the cooperation of the worm wheel and the worm, the lifting is stable, the problem that the existing height limiting frame is unstable in lifting and shaking is avoided, and the operation is simple.

2. According to the utility model, the anti-skid knob arranged on one side of the base is rotated, the anti-skid knob drives the second threaded rod to rotate out of the guide groove formed in the base, then the plug-in block and the plug rod connected at the lower end of the first bracket rotate out of the plug-in groove and the plug hole formed in the upper end of the base, so that the anti-skid knob can be quickly disassembled while fixing is realized, the problem that the height limiting frame and the base are difficult to disassemble after being soaked in rainwater for a long time through bolt fixing is avoided, the time is saved, and the operation is simple.

Drawings

FIG. 1 is an overall schematic diagram of a municipal bridge height limiting device of the utility model;

FIG. 2 is a schematic elevation view of a municipal bridge elevation limiting device of the utility model;

FIG. 3 is a schematic diagram showing the disassembly of a lifting structure of a municipal bridge height limiting device;

FIG. 4 is an enlarged schematic view of a municipal bridge height limiting device according to the utility model;

FIG. 5 is a schematic diagram showing the disassembly of a municipal bridge height limiting device bracket according to the utility model;

fig. 6 is a schematic diagram of a municipal bridge height limiting device in a partially enlarged and detached mode.

In the figure: 1. a device body; 2. a first bracket; 3. a second bracket; 4. a height limiting frame; 5. a base; 6. a lifting assembly; 61. a motor; 62. a limiting plate; 63. a first threaded rod; 64. a rotating shaft; 65. a worm wheel; 66. a worm; 67. a sliding sleeve; 68. a fixed block; 69. a slide bar; 7. a limit groove; 8. a plug block; 9. a rod; 10. a plug-in groove; 11. a guide groove; 12. a slot; 13. an anti-slip knob; 14. a second threaded rod; 15. and (5) pressing plates.

Detailed Description

Referring to fig. 1-6, a municipal bridge height limiting device comprises a device body 1, the device body 1 comprises a first support 2, a second support 3 and a base 5, limiting grooves 7 are formed in the first support 2 and the second support 3, a lifting assembly 6 is arranged in the second support 3, the lifting assembly 6 comprises a motor 61, a worm 66 and a worm gear 65, one end of the motor 61 is connected with the worm 66 and the worm 66 is rotationally connected to a rotating shaft 64, the worm 66 is in meshed connection with the worm gear 65, a first threaded rod 63 is in threaded connection with the middle of the worm gear 65, one end of the first threaded rod 63 is fixedly connected with a height limiting frame 4, a sliding sleeve 67 is arranged in one end of the height limiting frame 4 and is in sliding connection with the sliding sleeve 67, bases 5 are arranged at the bottoms of the first support 2 and the second support 3, an inserting block 8 is arranged on the lower end face of the first support 2 and is rotationally connected to an inserting groove 10 formed in the upper end face of the base 5, and a second threaded rod 14 is arranged on one side of the base 5.

Specifically, the sliding rod 69 and the first threaded rod 63 are respectively installed on the limiting grooves 7 inside the first bracket 2 and the second bracket 3, so that the sliding rod 69 and the first threaded rod 63 can be conveniently installed.

Specifically, the worm 66 and the worm gear 65 are arranged on the limiting plate 62, and the rotating shaft 64 is connected inside the limiting plate 62, so that the worm 66 and the worm gear 65 can be meshed stably.

Specifically, the upper end and the lower end of the slide bar 69 are respectively provided with a fixed block 68, and the fixed blocks 68 are fixedly connected inside the limiting grooves 7, so that the slide bar 69 is convenient to fix.

Specifically, the upper end face of the height limiting frame 4 is provided with a height sensor.

Specifically, the first support 2 is located the middle part of the plug block 8 and is provided with a plug rod 9, the plug rod 9 is connected to a slot 12 formed in the upper end of the base 5, a plug slot 10 is formed in a guide slot 11 formed in the upper end face of the base 5, and the first support 2 and the base 5 are fixed conveniently.

Specifically, the two ends of the second threaded rod 14 are respectively provided with an anti-slip knob 13 and a pressing plate 15, the anti-slip knob 13 drives the second threaded rod 14 to be in threaded connection with the base 5, and the second threaded rod 14 is connected with the pressing plate 15 to be connected to the outer wall of the first bracket 2, so that the first bracket 2 and the base 5 are fastened more.

The working principle of the utility model is as follows: when the height limiting frame 4 is used in a height limiting mode, the motor 61 in the second support 3 is driven to work, the motor 61 drives the worm 66 to rotate on the rotating shaft 64, then the worm 66 is meshed with the worm wheel 65 to rotate, then the first threaded rod 63 in threaded connection with the middle of the worm wheel 65 drives the upper end height limiting frame 4 to lift, meanwhile, the sliding sleeve 67 is connected with the other end of the height limiting frame 4 in a sliding mode to be matched with the sliding rod 69 in a sliding mode, the height limiting frame 4 is driven to stably lift, self-locking can be achieved under the matching of the worm wheel 65 and the worm 66, the lifting stability is improved, the problem that the existing height limiting frame 4 is unstable in lifting is solved, the lifting stability is improved, when the lifting stability is needed to be detached, the anti-slip knob 13 is used for driving the second threaded rod 14 to rotate out of the guide groove 11 formed in the base 5, then the plug block 8 and the plug rod 9 connected with the lower end of the first support 2 are rotated out of the plug groove 10 and the plug groove 12 formed in the upper end of the base 5, the height limiting frame 4 and the base 5 can be quickly detached while fixing is achieved, the problem that the height limiting frame 4 and the base 5 are difficult to detach due to long-time rainwater soaking is avoided.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Municipal bridge height limiting device, including device body (1), its characterized in that: the device comprises a device body (1) and is characterized in that the device body comprises a first support (2), a second support (3) and a base (5), limiting grooves (7) are formed in the first support (2) and the second support (3), lifting components (6) are arranged in the second support (3), the lifting components (6) comprise a motor (61), a worm (66) and a worm wheel (65), one end of the motor (61) is connected with the worm (66) and the worm (66) in a rotating mode, the worm (66) is meshed with the worm wheel (65), a first threaded rod (63) is connected with a middle thread of the worm wheel (65), one end of the first threaded rod (63) is fixedly connected with a height limiting frame (4), a sliding sleeve (67) and the sliding sleeve (67) are arranged in one end of the height limiting frame (4), the base (5) is arranged at the bottom of the second support (3), a plug-in block (8) is arranged on the lower end face of the first support (2), the plug-in block (8) is connected with the base (5), and the base (5) is arranged on one side of the base (10).

2. The municipal bridge height limiting device according to claim 1, wherein: the sliding rod (69) and the first threaded rod (63) are respectively arranged on the first bracket (2) and the second bracket (3) internal limiting groove (7).

3. The municipal bridge height limiting device according to claim 1, wherein: the worm (66) and the worm wheel (65) are arranged on the limiting plate (62), and the rotating shaft (64) is connected inside the limiting plate (62).

4. The municipal bridge height limiting device according to claim 1, wherein: the upper end and the lower end of the sliding rod (69) are respectively provided with a fixed block (68), and the fixed blocks (68) are fixedly connected inside the limiting groove (7).

5. The municipal bridge height limiting device according to claim 1, wherein: the upper end face of the height limiting frame (4) is provided with a height detector.

6. The municipal bridge height limiting device according to claim 1, wherein: the first support (2) is located the middle part of the plug block (8) and is provided with a plug rod (9), the plug rod (9) is connected to a slot (12) formed in the upper end of the base (5), and the plug slot (10) is formed in a guide slot (11) formed in the upper end face of the base (5).

7. The municipal bridge height limiting device according to claim 1, wherein: the anti-slip rotary table is characterized in that anti-slip rotary knobs (13) and pressing plates (15) are respectively arranged at two ends of the second threaded rod (14), the anti-slip rotary knobs (13) drive the second threaded rod (14) to be in threaded connection with the base (5), and the pressing plates (15) are connected with the second threaded rod (14) to be connected to the outer wall of the first bracket (2).