Bridge external maintenance car limiting device

Abstract

The utility model discloses a bridge external maintenance car limiting device, which relates to the field of maintenance car limiting devices, and comprises an outer frame and wedge-shaped cushion blocks, the outer frame is provided with bolts, the bolts are connected to the outer frame through threads and can press the wedge-shaped cushion blocks below when being screwed downwards, the wedge-shaped cushion blocks are provided with positioning grooves, and the positioning grooves are matched with the wedge-shaped cushion blocks. A positioning groove is formed in the outer frame, a bolt is arranged in the positioning groove, a gasket is arranged in the positioning groove, the bolt can abut against the gasket when moving downwards, the front end face of the wedge-shaped cushion block is an inclined face, an installation hole is further formed in the outer frame, a check block is arranged in the installation hole, and the check block is located behind the wedge-shaped cushion block. The outer frame and the wedge-shaped cushion block are mounted below steel wheels of an inspection vehicle outside a bridge in a manner of clamping a track, so that the track of the inspection vehicle is not damaged, and the assembly and disassembly are convenient during use; in order to ensure that the inspection vehicle is completely braked, the limiting devices are mounted on the tracks on the two sides.

Description

Technical Field

[0001] The utility model relates to the field of a maintenance vehicle limiting device, in particular to a bridge external maintenance vehicle limiting device. Background Art

[0002] In order to facilitate the inspection and maintenance of bridges, a maintenance vehicle platform is usually set up outside the bridge, which is mainly used for daily maintenance operations such as inspection and repair of bridges. However, due to the influence of typhoons and severe convective weather, the original locking device is insufficiently restrained, and the maintenance vehicle may shift or slip during the inspection and maintenance operation. There have even been accidents in which the vehicle fell into the water due to severe convective and windy weather. Therefore, a reliable limit device is urgently needed to eliminate such accidents. Utility Model Content

[0003] The purpose of the utility model is to provide a limiting device for a bridge external maintenance vehicle to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a limiting device for a bridge external maintenance vehicle, comprising an outer frame and a wedge-shaped pad, the outer frame is provided with bolts, the bolts are connected to the outer frame by threads and can press the wedge-shaped pad below when being screwed downward, the wedge-shaped pad is provided with a positioning groove, a gasket is provided in the positioning groove, the bolt will press against the gasket when being screwed downward, the front end face of the wedge-shaped pad is an inclined surface, the outer frame is also provided with a mounting hole, a stopper is provided in the mounting hole, and the stopper is located behind the wedge-shaped pad.

[0005] Preferably, a threaded column is provided on the outer frame, a thread is provided inside the threaded column, and the bolt is installed inside the threaded column.

[0006] Preferably, a wear-resistant plate is provided on the inclined surface of the wedge-shaped pad, and the wear-resistant plate is installed in a mounting groove on the inclined surface by means of hexagon socket bolts.

[0007] Preferably, the surface of the wear-resistant plate is provided with anti-slip grooves.

[0008] Preferably, a buffer pad is provided on the ground of the wedge-shaped pad, and the buffer pad is made of polyurethane.

[0009] Preferably, a hanging platform is provided on the stopper, and the width of the stopper is smaller than the mounting hole.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] To ensure that the inspection vehicle and the track are relatively fixed, the utility model installs the outer frame and the wedge-shaped pad under the steel wheel of the inspection vehicle outside the bridge in a way of clamping the track, without damaging the inspection vehicle track and convenient for disassembly and assembly during use; to ensure that the inspection vehicle is completely braked, the limit device is installed on the tracks on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is the front view of the utility model;

[0014] Figure 3 It is a schematic diagram of the wedge-shaped pad and the positioning groove structure;

[0015] Figure 4 The utility model is installed on the track schematic diagram.

[0016] In the figure: 1-external frame; 11-threaded column;

[0017] 2-wedge-shaped pad; 21-wear-resistant plate;

[0018] 3- Bolts;

[0019] 4-Mounting holes;

[0020] 5-stopper; 51-hanging platform;

[0021] 6-positioning groove; 61-gasket. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a limiting device for a bridge external maintenance vehicle, comprising an outer frame 1 and a wedge-shaped pad 2. The outer frame 1 is provided with bolts 3, and the bolts 3 are connected to the outer frame 1 by threads and can press the wedge-shaped pad 2 below when twisted downward. The wedge-shaped pad 2 is provided with a positioning groove 6, and a gasket 61 is provided in the positioning groove 6. When the bolt 3 is twisted downward, it will press against the gasket 61. The front end surface of the wedge-shaped pad 2 is an inclined surface, and the outer frame 1 is also provided with a mounting hole 4, and a stopper 5 is provided in the mounting hole 4. The stopper 5 is located behind the wedge-shaped pad 2. The outer frame 1 and the wedge-shaped pad 2 are connected by the bolts 3. When the maintenance vehicle is operating, the wheels are blocked by the wedge-shaped pad 2 to prevent the maintenance vehicle from moving.

[0024] In this embodiment, a threaded column 11 is provided on the outer frame 1 , and a thread is provided inside the threaded column 11 . The bolt 3 is installed inside the threaded column 11 . The threaded column 11 can be processed with a sufficiently long thread to facilitate the connection of the bolt 3 .

[0025] In this embodiment, a wear-resistant plate 21 is provided on the inclined surface of the wedge-shaped pad 2. The wear-resistant plate 21 is installed in a mounting groove on the inclined surface by means of hexagon socket bolts. The wear-resistant plate 21 is easy to replace after being worn, thereby reducing the use cost.

[0026] In this embodiment, the surface of the wear-resistant plate 21 is provided with anti-skid grooves to further increase the friction force and prevent the wheel from slipping on the wear-resistant plate 21 .

[0027] In this embodiment, a buffer pad is provided on the ground of the wedge-shaped pad 2. The buffer pad is made of polyurethane to reduce the impact on the track and prevent the track from being damaged due to excessive pressure.

[0028] In this embodiment, a hanging platform 51 is provided on the stopper 5, and the width of the stopper 5 is smaller than the mounting hole 4, so that the stopper is easy to disassemble and assemble.

[0029] Working principle: The outer frame 1 and the wedge-shaped pad 2 are installed under the steel wheel of the inspection vehicle outside the bridge in a way of clamping the track, and fixed by bolts 3 to make the wear-resistant plate 21 contact with the wheel. This will not damage the inspection vehicle track and is convenient for disassembly and assembly during use. At the same time, in order to ensure that the inspection vehicle is completely braked, the limit device is installed on both sides of the track.

[0030] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A limiting device for a bridge external maintenance vehicle, characterized in that: The invention comprises an outer frame (1) and a wedge-shaped pad (2). The outer frame (1) is provided with a bolt (3). The bolt (3) is connected to the outer frame (1) by a thread and can press the wedge-shaped pad (2) below when it is screwed downward. The wedge-shaped pad (2) is provided with a positioning groove (6). A gasket (61) is provided in the positioning groove (6). When the bolt (3) is screwed downward, it will press against the gasket (61). The front end surface of the wedge-shaped pad (2) is an inclined surface. The outer frame (1) is also provided with a mounting hole (4). A stopper (5) is provided in the mounting hole (4). The stopper (5) is located behind the wedge-shaped pad (2).

2. A bridge external maintenance vehicle limiting device according to claim 1, characterized in that: The outer frame (1) is provided with a threaded column (11), a thread is provided inside the threaded column (11), and the bolt (3) is installed inside the threaded column (11).

3. A bridge external maintenance vehicle limiting device according to claim 1, characterized in that: A wear-resistant plate (21) is provided on the inclined surface of the wedge-shaped pad (2), and the wear-resistant plate (21) is installed in a mounting groove on the inclined surface by means of hexagon socket bolts.

4. A bridge external maintenance vehicle limiting device according to claim 3, characterized in that: The surface of the wear-resistant plate (21) is provided with anti-slip grooves.

5. The position limiting device for a bridge external maintenance vehicle according to claim 1, characterized in that: The ground surface of the wedge-shaped cushion block (2) is provided with a buffer pad, and the material of the buffer pad is polyurethane.

6. A bridge external maintenance vehicle limiting device according to claim 1, characterized in that: A hanging platform (51) is provided on the stopper (5), and the width of the stopper (5) is smaller than the mounting hole (4).

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