CN215669163U

CN215669163U - Height-adjustable height limiting device for municipal road

Info

Publication number: CN215669163U
Application number: CN202121462393.XU
Authority: CN
Inventors: 于培龙; 颜刚; 刘明鑫; 范思轶; 顾典科; 戴旭; 李慧明; 肖国冬; 吴铚强; 胡强磊; 高悦; 陈蓉; 王沁; 童优良; 熊全裕; 张占龙; 刘昊夫; 周翊; 袁涛; 郑攀
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-28
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a height-adjustable height-limiting device for a municipal road, which comprises a cross rod and two lifting support mechanisms arranged at intervals, wherein each lifting support mechanism comprises a support and a lifting rod arranged on the support, the cross rod is arranged on the lifting rod, a lifting power mechanism used for lifting the lifting rod is arranged on the support, and a ratchet mechanism capable of preventing the lifting rod from falling back is arranged between the lifting rod and the support. This but height-adjusting is limit for height device height-adjusting for town road convenient, avoid dropping and the security performance is high.

Description

Height-adjustable height limiting device for municipal road

Technical Field

The utility model relates to the technical field of devices for blocking or limiting traffic, in particular to a height limiting device for a municipal road with adjustable height.

Background

At present, some municipal roads need to adopt height-limiting rods to limit the height of the roads for running, and the existing height-limiting rods are of two types, wherein one type is a height-limiting rod with fixed height, and the height of the height-limiting rod cannot be adjusted, so that the height-limiting rod cannot be temporarily and rapidly adjusted when some special vehicles need to pass through emergently, the working process of emergency vehicles is delayed, and some serious results are caused; the other type is height-limiting rod with adjustable height, which is divided into automatic and non-automatic, most of height-limiting rods with automatic height adjustment adopt a motor or a hydraulic pump to provide power to adjust the height, but the height-limiting rods are used, as long as the height is fixed, the scene requirements needing to be adjusted are very few, the motor and the hydraulic pump are in a stop state within a long time, the equipment is not only damaged, regular maintenance is needed, waste on manpower resources and the equipment is caused, the non-automatic height-limiting rods are inconvenient to adjust, the cross rods are easy to fall down, and the safety performance is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a height-adjustable height-limiting device for a municipal road, which is convenient in height adjustment, capable of avoiding falling and high in safety performance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a height-adjustable's height-limiting device for town road, includes the lift supporting mechanism that horizontal pole and two intervals set up, lift supporting mechanism includes the support and locates the lifter on the support, the horizontal pole is located on the lifter, be equipped with the lift power unit who is used for making the lifter go up and down on the support, be equipped with the ratchet that can prevent the lifter from falling back between lifter and the support.

As a further improvement of the above technical solution:

the ratchet mechanism comprises a ratchet bar and a blocky pawl, the ratchet bar is vertically arranged on the lifting rod, the ratchet of the ratchet bar is in a downward inclined strip shape, the pawl is slidably arranged on the support and inclines to one side of the ratchet bar, an elastic piece is arranged between the pawl and the support, and a release mating piece used for enabling the pawl and the ratchet bar to be far away is arranged on the pawl.

The support is provided with an installation block, the installation block is provided with a sliding groove inclined towards one side of the ratchet bar, the pawl is arranged in the sliding groove in a sliding mode, and the elastic piece is arranged between the pawl and the installation block.

The lifting power mechanism comprises a rotating part arranged on the support and a rotating mechanism used for rotating the rotating part, and the rotating part is matched with the ratchet bar.

The cambered surface of one side surface of the rotating part and the straight surface of the other side surface of the rotating part are used for pushing up the ratchet bar.

The rotating mechanism comprises a rotating handle, and the rotating handle is connected with a rotating shaft of the rotating part.

The rotating piece is arranged on the upper part of the bracket.

The rotating part is arranged on the upper part of the support, the rotating mechanism further comprises a transmission assembly, and the rotating handle is arranged on the lower part of the support and is connected with a rotating shaft of the rotating part through the transmission assembly.

The release matching piece is a pulling handle or a pull wire.

The bottom of the support is provided with a fixed seat.

Compared with the prior art, the utility model has the advantages that:

the height-adjustable height-limiting device for the municipal road comprises a cross rod and two lifting support mechanisms arranged at intervals, wherein each lifting support mechanism comprises a support and a lifting rod arranged on the support, the cross rod is arranged on the lifting rod, a lifting power mechanism used for lifting the lifting rod is arranged on the support, and a ratchet mechanism capable of preventing the lifting rod from falling back is arranged between the lifting rod and the support. The lifting power mechanism is used for adjusting the lifting height of the lifting rod, so that the height of the cross rod is adjusted, when the lifting rod rises, the ratchet mechanism cannot block the lifting rod from rising, but when the lifting rod descends, the ratchet mechanism blocks the lifting rod from descending, so that the anti-falling function is realized, the cross rod and the lifting rod are prevented from accidentally falling, and the safety performance is improved. This height-limiting device for municipal administration road height-adjusting convenient, avoid dropping and security performance height.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of a height limiting device for a height-adjustable town road of the utility model.

Fig. 2 is an enlarged view at a in fig. 1.

Figure 3 is a side view structure schematic diagram of utility model height-adjustable's limit for height device for town road embodiment one.

Fig. 4 is an enlarged view at B in fig. 3.

Fig. 5 is a three-dimensional structure schematic diagram of utility model height-adjustable's town road height-limiting device's lifter.

Fig. 6 is a schematic perspective structure of a bracket of a first embodiment of the height-adjustable height-limiting device for the utility model of the municipal road.

Fig. 7 is a perspective view of a pawl of a first embodiment of a height limiting device for the height-adjustable municipal road of the utility model.

Figure 8 is a side view schematic structure of utility model height-adjustable's limit for height device for town road embodiment two.

The reference numerals in the figures denote:

1. a cross bar; 2. a lifting support mechanism; 21. a support; 211. mounting blocks; 212. a chute; 22. a lifting rod; 3. a lifting power mechanism; 31. a rotating member; 311. a cambered surface; 312. a straight surface; 32. a rotation mechanism; 321. rotating the handle; 322. a transmission assembly; 4. a ratchet mechanism; 41. a ratchet bar; 411. a ratchet; 42. a pawl; 421. releasing the mating piece; 43. an elastic member; 5. a fixed seat.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

The first embodiment is as follows:

fig. 1 to 7 show an embodiment of a height-adjustable height-limiting device for a municipal road according to the utility model, which comprises a cross rod 1 and two lifting support mechanisms 2 arranged at intervals, wherein each lifting support mechanism 2 comprises a support 21 and a lifting rod 22 arranged on the support 21, the cross rod 1 is arranged on the lifting rod 22, a lifting power mechanism 3 for lifting the lifting rod 22 is arranged on the support 21, and a ratchet mechanism 4 capable of preventing the lifting rod 22 from falling back is arranged between the lifting rod 22 and the support 21. The lifting power mechanism 3 is used for adjusting the lifting height of the lifting rod 22, so that the height of the cross rod 1 is adjusted, when the lifting rod 22 ascends, the ratchet mechanism 4 cannot block the lifting rod 22 to ascend, but when the lifting rod 22 descends, the ratchet mechanism 4 blocks the lifting rod 22 to descend, so that the anti-falling function is achieved, the cross rod 1 and the lifting rod 22 are prevented from accidentally falling, and the safety performance is improved. This height-limiting device for municipal administration road height-adjusting convenient, avoid dropping and security performance height.

In this embodiment, as shown in fig. 3, 4 and 5, the ratchet mechanism 4 includes a ratchet bar 41 and a block-shaped pawl 42 that are engaged with each other, the ratchet bar 41 is vertically disposed on the lifting rod 22, the ratchet teeth 411 of the ratchet bar 41 are in a downward inclined strip shape, the pawl 42 is slidably disposed on the bracket 21 and inclined toward one side of the ratchet bar 41, an elastic member 43 is disposed between the pawl 42 and the bracket 21, and the pawl 42 is provided with a release engagement member 421 for separating the pawl 42 from the ratchet bar 41. The pawl 42 abuts against the upper surface of the lower end of any one ratchet 411 under the elastic force of the elastic member 43, the lower end surface of the adjacent ratchet 411 above the ratchet 411 abuts against the upper surface of the lower end of the pawl 42, the ratchet bar 41 cannot fall off under the limiting action of the upper surface of the lower end of the pawl 42, the rising of the ratchet bar 41 is not limited, when the ratchet bar 41 rises, the pawl 42 can push the pawl 42 upwards, so that the pawl 42 moves obliquely upwards to overcome the elastic force of the elastic member 43, and the upward limiting action of the ratchet bar 41 is not provided. The pawl 42 and the ratchet bar 41 can be separated from each other by the release fitting 421, and the engagement between the pawl 42 and the ratchet bar 41 can be released, so that the lifter 22 can freely fall, thereby achieving the lowering function of the lifter 22.

When the lifting support mechanism is used, the supports 21 of the two lifting support mechanisms 2 are respectively fixed on two sides of a road, the supports 21 and the lifting rods 22 are rectangular long rods, the lifting rods 22 are inserted into the supports 21, and the cross rods 1 are connected to the upper ends of the two lifting rods 22. Specifically, the upper end of the lifting rod 22 is provided with a hole for the cross rod 1 to penetrate into, and the cross rod 1 can be provided with a notice board and a camera. The outer side of the ratchet 411 is away from the inner wall of the bracket 21 by a certain distance, the lower end of the pawl 42 is matched with the ratchet 411, the width of the pawl 42 is the same as that of the ratchet 411, the cross section of the pawl 42 is rectangular, the lower end surface of the ratchet 411 is abutted against the upper surface of the lower end of the pawl 42, when the ratchet bar 41 ascends, the pawl 42 is pushed by the ratchet 411 to contract, the contact area between the pawl 42 and the ratchet 411 is gradually reduced until the pawl is completely separated from the ratchet 411, after the pawl 42 is separated from the ratchet 411, the pawl 42 moves downwards again under the action of the elastic piece 43 (spring), the lower end of the pawl 42 is abutted against the next ratchet 411, and the lower end surface of the previous ratchet 411 is abutted against the upper surface of the upper end of the pawl 42, so that the ratchet bar 41 cannot fall.

In this embodiment, as shown in fig. 2, 3, 4 and 6, the bracket 21 is provided with an installation block 211, the installation block 211 is provided with a sliding slot 212 inclined to one side of the ratchet bar 41, the pawl 42 is slidably disposed in the sliding slot 212, and the elastic member 43 is disposed between the pawl 42 and the installation block 211. The elastic member 43 is located in the slide groove 212, and the elastic member 43 is connected to the upper end of the pawl 42 to make the pawl 42 engage with the ratchet 411 to prevent falling.

In this embodiment, as shown in fig. 4, the elevating power mechanism 3 includes a rotating member 31 disposed on the bracket 21 and a rotating mechanism 32 for rotating the rotating member 31, and the rotating member 31 is engaged with the ratchet bar 41. The ratchet mechanism 4 and the elevating power mechanism 3 are both disposed on the upper portion of the bracket 21, and the elevating power mechanism 3 is disposed below the ratchet mechanism 4, specifically, the rotating member 31 is disposed on the upper portion of the bracket 21. The rotating member 31 is disposed on the bracket 21 through a rotating shaft, the rotating member 31 is disposed at one side of the ratchet bar 41, the rotating mechanism 32 is connected to the rotating shaft of the rotating member 31, the rotating member 31 is engaged with the ratchet 411, the rotating mechanism 32 rotates the rotating member 31, and the rotating member 31 drives the lifting rod 22 to ascend through the ratchet 411.

In this embodiment, as shown in fig. 4, one side surface of the rotating member 31 is an arc surface 311, and the other side surface is a straight surface 312 for pushing up the ratchet bar 41. The straight surface 312 is located at a smaller linear distance from the rotational axis of the rotating member 31 than the ratchet 41. When the straight surface 312 of the rotor 31 is rotated to the upright state and the side of the straight surface 312 is close to the ratchet 411, the rotor 31 cannot stop the descending of the ratchet 411, and if the ratchet mechanism 4 also releases the function of restricting the descending of the lifting lever 22, the lifting lever 22 can descend.

In this embodiment, the rotating mechanism 32 includes a rotating handle 321, and the rotating handle 321 is connected to the rotating shaft of the rotating member 31. The rotating part 31 is rotated by rotating the handle 321, so that the height of the cross rod 1 is adjusted, the structure is simple, and the adjustment is convenient.

In this embodiment, the release engagement member 421 is a pull knob and is provided outside the holder 21. The bracket 21 is provided with a movable slot for moving the pulling handle, the movable slot has the same inclination direction with the pawl 42, the pulling handle is pushed to move upwards, the pawl 42 is separated from the movable range of the ratchet 411, and the falling limit effect on the ratchet 411 is removed.

In this embodiment, as shown in fig. 1, 3, 6 and 8, the bottom of the bracket 21 is provided with a fixing seat 5. The bracket 21 is fixed on the side of the road through the fixing seat 5.

Example two:

fig. 8 shows another embodiment of the height-adjustable height-limiting device for municipal roads of the utility model, and the structure of the embodiment is basically the same as that of the first embodiment except that: the rotating member 31 is disposed on the upper portion of the bracket 21, the rotating mechanism 32 further includes a transmission assembly 322, and the rotating handle 321 is disposed on the lower portion of the bracket 21 through a rotating shaft and connected to the rotating shaft of the rotating member 31 through the transmission assembly 322. The height of the stand 21 is high, and if the rotating handle 321 is provided at the upper portion of the stand 21, some people cannot touch the rotating handle 321 due to height problems, so the rotating handle 321 is provided at the lower portion of the stand 21 to facilitate force application. In particular, the drive assembly 322 may be a chain assembly or a conveyor belt assembly.

In this embodiment, the release engagement member 421 is a pull wire. The top end of the mounting block 211 is provided with a threading slot communicated with the sliding slot 212, the stay cord extends out of the mounting block 211 through the threading slot and drops to the lower part of the bracket 21, and as long as the stay cord is pulled, the stay cord can drive the pawl 42 to move towards the upper part of the sliding slot 212, so that the pawl 42 is separated from the movable range of the ratchet 411.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a height-adjustable's limit for height device for town road which characterized in that: lifting support mechanism (2) that set up including horizontal pole (1) and two intervals, lifting support mechanism (2) include support (21) and locate lifter (22) on support (21), on lifter (22) were located in horizontal pole (1), be equipped with on support (21) and be used for making lifter (22) go up and down lifting power unit (3), be equipped with ratchet (4) that can prevent lifter (22) fall back between lifter (22) and support (21).

2. The height-adjustable height-limiting device for municipal roads according to claim 1, wherein: the ratchet mechanism (4) comprises a ratchet bar (41) and a blocky pawl (42) which are matched with each other, the ratchet bar (41) is vertically arranged on the lifting rod (22), the ratchet teeth (411) of the ratchet bar (41) are in a shape of a strip which inclines downwards, the pawl (42) is slidably arranged on the support (21) and inclines towards one side of the ratchet bar (41), an elastic piece (43) is arranged between the pawl (42) and the support (21), and a release matching piece (421) used for enabling the pawl (42) and the ratchet bar (41) to be far away is arranged on the pawl (42).

3. The height-adjustable height-limiting device for municipal roads according to claim 2, wherein: the support (21) is provided with an installation block (211), the installation block (211) is provided with a sliding groove (212) which inclines to one side of the ratchet bar (41), the pawl (42) is arranged in the sliding groove (212) in a sliding mode, and the elastic piece (43) is arranged between the pawl (42) and the installation block (211).

4. The height-adjustable height-limiting device for municipal roads according to claim 2, wherein: the lifting power mechanism (3) comprises a rotating part (31) arranged on the support (21) and a rotating mechanism (32) used for enabling the rotating part (31) to rotate, and the rotating part (31) is matched with the ratchet bar (41).

5. The height-adjustable height-limiting device for municipal roads according to claim 4, wherein: the other side surface of the arc surface (311) on one side surface of the rotating part (31) is a straight surface (312) used for pushing up the ratchet bar (41).

6. The height-adjustable height-limiting device for municipal roads according to claim 4, wherein: the rotating mechanism (32) comprises a rotating handle (321), and the rotating handle (321) is connected with a rotating shaft of the rotating part (31).

7. The height-adjustable height-limiting device for municipal roads according to claim 6, wherein: the rotating piece (31) is arranged on the upper part of the bracket (21).

8. The height-adjustable height-limiting device for municipal roads according to claim 6, wherein: the rotating part (31) is arranged on the upper portion of the support (21), the rotating mechanism (32) further comprises a transmission assembly (322), and the rotating handle (321) is arranged on the lower portion of the support (21) and connected with a rotating shaft of the rotating part (31) through the transmission assembly (322).

9. The height-adjustable height-limiting device for municipal roads according to claim 2, wherein: the release matching piece (421) is a pulling handle or a pulling line.

10. The height-adjustable height-limiting device for municipal roads according to any one of claims 1 to 9, wherein: the bottom of the support (21) is provided with a fixed seat (5).