CN215714812U

CN215714812U - Crossing height limiting device

Info

Publication number: CN215714812U
Application number: CN202022690879.0U
Authority: CN
Inventors: 侯志强; 董宁
Original assignee: Tianjin Xinzhan Expressway Co ltd; Gaomi Tongda Traffic Facility Co ltd
Current assignee: Tianjin Xinzhan Expressway Co ltd; Gaomi Tongda Traffic Facility Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2022-02-01
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a crossing height limiting device, which comprises an upright post, wherein a rotatable rotating shaft is rotatably connected to the upright post, a limiting rod which swings along with the rotation of the rotating shaft is connected to the rotating shaft, a display board is connected to the limiting rod, the upright post is provided with an inner chamber, a first gearbox and a second gearbox are arranged in the inner chamber, a power input device is connected to the upright post, the power input device is provided with a power input shaft, the first gearbox is in power connection with the power input shaft, the first gearbox and the second gearbox are in power connection through a middle transmission shaft, the connecting shaft is in power connection with the second gearbox, and a limiting mechanism capable of limiting the swing angle of the rotating shaft is further arranged in the upright post. The utility model has simple and rapid operation, accurate limit and convenient and timely replacement of the display board, greatly reduces the manpower and time and greatly improves the labor efficiency.

Description

Crossing height limiting device

Technical Field

The utility model relates to a road indicating device, in particular to a crossing height limiting device.

Background

The road indicating device is arranged on the road, so that information such as speed, height and the like of a vehicle which can pass through the road by a high-speed driver can be clear, and the road indicating device plays a role in indicating, guiding and reminding the vehicle. For example, height-limiting rods are arranged on certain road sections, most of the existing height-limiting rods are of fixed limiting frame structures, the frame structures are provided with cross beams with certain heights, and the disassembly and the assembly are very inconvenient.

Of course, also provide a road limit for height pole among the prior art, its basic structure includes stand and fixed connection on the stand and to the limit for height pole that one side stretches out, but its limit for height pole adopts the mode that the manual work rose and fell to realize mostly, can cause spacing inaccurate, and the manual work is lifted up and is transferred also wastes time and energy moreover, causes labor inefficiency.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a time-saving and labor-saving intersection height limiting device for realizing the lifting and lowering actions of a display board, which is stable and accurate in limiting.

In order to solve the technical problem, the provided intersection limit for height device, including the stand, rotate on the stand and be connected with rotatable axis of rotation, be connected with in the axis of rotation and rotate and wobbling gag lever post along with the axis of rotation, be connected with the display board on the gag lever post, its structural feature lies in: the stand has interior chamber, first gearbox and second gearbox are equipped with in the interior chamber, be connected with power input device on the stand, power input device has the power input shaft, first gearbox is connected with power input shaft power, first gearbox and second gearbox are connected through well transaxle power, the axis of rotation is connected with second gearbox power, still be equipped with the stop gear who can restrict axis of rotation swing angle in the stand.

The limiting mechanism comprises a limiting baffle connected to the rotating shaft, an upper limiting stop block which can abut against the limiting baffle after the limiting rod swings to a vertical position is fixedly connected to the wall of the inner chamber, and a lower limiting stop block which can abut against the limiting baffle when the limiting rod swings to a horizontal position is further connected to the wall of the inner chamber.

The cavity wall of the inner cavity is connected with a fixing seat, a tension spring is mounted on the fixing seat, the upper portion of the tension spring is connected with a connecting rod, and the upper portion of the connecting rod is hinged to the limiting baffle through a pin shaft.

The power input shaft horizontally penetrates into the upright post, the intermediate transmission shaft is vertically arranged, the input end of the intermediate transmission shaft and the output end of the power input shaft both extend into the first gearbox, and the input end of the intermediate transmission shaft and the output end of the power input shaft are provided with speed change bevel gears which are meshed with each other.

The horizontal projection of the rotating shaft and the power input shaft is arranged in a vertical crossing manner, a gearbox shaft is arranged in the second gearbox, the output end of the intermediate transmission shaft extends into the second gearbox, a second bevel gear is correspondingly arranged on the extension section of the intermediate transmission shaft and the gearbox worm, the gearbox shaft is provided with a worm section, and the rotating shaft extends into the second gearbox and the extension section of the rotating shaft is connected with a worm wheel which can be meshed with the worm section.

The power input device is a power hand wheel connected to the extending end of the power input shaft; or the power input device is a positive and negative rotation motor connected to the upright post, and a motor shaft of the positive and negative rotation motor is in power connection with the power input shaft.

After the structure in the stand is adopted, the display board is lifted and transferred without manual work, the power driving device can drive the power through the power input device, the power realizes the rotation of the rotating shaft through the first gearbox and the second gearbox, so that the limiting rod swings, the lifting and transferring actions on the display board are realized, the operation is more time-saving and labor-saving, the arrangement of the limiting mechanism can ensure the swinging angle of the limiting rod, and the consistency of the height after the swinging is realized. The structure setting of above-mentioned first gearbox and second gearbox can make power transmission more stable to the auto-lock can be realized to worm gear's structure, prevents to produce the free swing of gag lever post because of the free rotation of axis of rotation. The upper and lower limiting blocks and the tension spring are structurally arranged, so that the state that the limiting rod is positioned in the horizontal position is further stable.

In conclusion, the automatic display board limiting device is simple and quick to operate, accurate in limiting, convenient to replace the display board in time, capable of greatly reducing manpower and time and greatly improving labor efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic sectional view of the column of FIG. 1;

FIG. 3 is a schematic structural diagram illustrating another operating state in the embodiment of FIG. 1;

fig. 4 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

As shown in fig. 1 to fig. 3, the present invention provides an embodiment of an intersection height limiting device, which can be used on a high-speed toll station branch road, and can also be used on other roads, and plays a role in guiding, reminding, and warning according to different contents on the intersection height limiting device. Above-mentioned embodiment includes stand 1, stand 1's upper portion is rotated and is connected with rotatable axis of rotation 17, be connected with the gag lever post 18 that rotates and swing along with the axis of rotation on the axis of rotation 17, be connected with display board 14 on the gag lever post 18, in this embodiment, because the length of gag lever post is generally longer, therefore be connected with the rod cover in the axis of rotation, the gag lever post cartridge is in the rod cover, can make things convenient for its transportation and actual installation, above-mentioned display board 14 passes through bolted connection on gag lever post 18, can make things convenient for the change of display board. The stand 1 has interior chamber, first gearbox 15 and second gearbox 12 are equipped with in the interior chamber, be connected with power input device on the stand, power input device has power input shaft 13, first gearbox 15 is connected with power input shaft 13 power, first gearbox 15 and second gearbox 12 are through 11 power connection of well biography axle, axis of

rotation

17 and 12 power connection of second gearbox. Referring to fig. 2, the power transmission structure is that the power input shaft 13 horizontally penetrates into the column, the intermediate transmission shaft 11 is vertically arranged, the input end of the intermediate transmission shaft and the output end of the power input shaft both extend into the first gearbox 15, and the input end of the intermediate transmission shaft and the output end of the power input shaft are provided with speed change bevel gears 151 engaged with each other. The horizontal projection of the rotating shaft 17 and the power input shaft 13 is arranged in a vertical crossing manner, a gearbox shaft 121 is arranged in the second gearbox, the output end of the intermediate transmission shaft 11 extends into the second gearbox, a second bevel gear 122 is correspondingly arranged on the extending section of the intermediate transmission shaft and a gearbox worm, the gearbox shaft 121 is provided with a worm section, and the rotating shaft 17 extends into the second gearbox and a worm wheel 123 capable of being meshed with the worm section is connected on the extending section of the rotating shaft 17. The power input device drives the power input shaft 13 to rotate, the intermediate transmission shaft 11 is driven to rotate through the meshing of the speed change bevel gears, the trend gearbox shaft 121 rotates through the meshing action of the second bevel gears 122, and finally the rotating shaft 17 rotates through the meshing of the worm section and the worm wheel.

Referring to fig. 1 to 3, a limiting mechanism capable of limiting the swing angle of the rotating shaft is further installed in the upright column. The limiting mechanism comprises a limiting baffle 10 connected to the rotating shaft 17, an upper limiting stop 5 which can abut against the limiting baffle after the limiting rod swings to a vertical position is fixedly connected to the wall of the inner chamber, and a lower limiting stop 6 which can abut against the limiting baffle when the limiting rod swings to a horizontal position is further connected to the wall of the inner chamber. Be connected with fixing base 7 on the chamber wall of inner chamber, be equipped with extension spring 8 on the fixing base 7, the upper portion of extension spring 8 is connected with connecting rod 9, the upper portion and the limit baffle 10 of connecting rod are through the round pin axle articulated. When the rotating shaft 17 rotates, the limit baffle 10 rotates along with the rotating shaft, and when the limit rod 18 swings to a horizontal position (the state in fig. 1), the limit baffle 10 abuts against the lower limit baffle 6, at the moment, the extending end of the limit baffle 10 swings to the lowest position, and the tension spring 8 is in a contraction state and keeps certain tension, so that the rotating shaft 17 is effectively prevented from rotating reversely, and the limit rod is kept in a more stable horizontal state; when the limit rod 18 swings to the vertical state (the state in fig. 3), the limit rod is shielded by the column, so that the limit rod is not shown in fig. 3, the limit baffle 10 abuts against the upper limit stopper 5, the extending end of the limit baffle 10 swings to the highest position, and the tension spring 8 is in the extended state.

Referring to fig. 1 and 4, in fig. 1, the power input device is a power hand wheel 2 connected to the outward extending end of a power input shaft 13; in the embodiment of fig. 4, the power input device is a forward and reverse rotation motor 3 connected to the column, a motor shaft of the forward and reverse rotation motor 3 is in power connection with a power input shaft 13 through a coupler, and other structures in the embodiment of fig. 4 are the same as those in the embodiment of fig. 1, and are not described again here.

The present invention is not limited to the above-described embodiments, that is, equivalent changes and replacement of basic parts based on the specific structure of the present invention are within the scope of protection of the present invention, and the present invention can be used not only at the highway toll station intersection, but also at the national provincial road branch intersection, etc.

Claims

1. The utility model provides a crossing limit for height device, includes stand (1), rotates on stand (1) and is connected with rotatable axis of rotation (17), is connected with on axis of rotation (17) and rotates and wobbling gag lever post (18) along with the axis of rotation, is connected with display board (14), its characterized in that on gag lever post (18): stand (1) has interior cavity, first gearbox (15) and second gearbox (12) are equipped with in the interior cavity, be connected with power input device on the stand, power input device has power input shaft (13), first gearbox (15) are connected with power input shaft (13) power, first gearbox (15) and second gearbox (12) pass through well biography axle (11) power and connect, axis of rotation (17) are connected with second gearbox (12) power, still be equipped with the stop gear who can restrict axis of rotation swing angle in the stand.

2. The intersection height limiting device of claim 1, wherein: stop gear is including connecting limit baffle (10) on axis of rotation (17), and the rigid coupling has last spacing dog (5) that can offset with limit baffle after the gag lever post swings vertical position on the chamber wall of inner chamber, still be connected with on the chamber wall of inner chamber can offset with limit baffle when the gag lever post swings horizontal position lower spacing dog (6).

3. The intersection height limiting device of claim 2, wherein: be connected with fixing base (7) on the chamber wall of inner chamber, be equipped with extension spring (8) on fixing base (7), the upper portion of extension spring (8) is connected with connecting rod (9), the upper portion and limit baffle (10) of connecting rod are articulated through the round pin axle.

4. The intersection height limiting device according to any one of claims 1 to 3, wherein: the power input shaft (13) horizontally penetrates into the upright post, the intermediate transmission shaft (11) is vertically arranged, the input end of the intermediate transmission shaft and the output end of the power input shaft both extend into the first gearbox (15), and the input end of the intermediate transmission shaft and the output end of the power input shaft are provided with speed change bevel gears (151) which are meshed with each other.

5. The intersection height limiting device according to any one of claims 1 to 3, wherein: the horizontal projection of the rotating shaft (17) and the power input shaft (13) is arranged in a vertical crossing mode, a gearbox shaft (121) is arranged in the second gearbox, the output end of the middle transmission shaft (11) extends into the second gearbox, a second bevel gear (122) is correspondingly arranged on the extending section of the middle transmission shaft and the gearbox worm, the gearbox shaft (121) is provided with a worm section, and the rotating shaft (17) extends into the second gearbox and is connected with a worm wheel (123) capable of being meshed with the worm section.

6. The intersection height limiting device according to any one of claims 1 to 3, wherein: the power input device is a power hand wheel (2) connected with the extending end of the power input shaft (13); or the power input device is a positive and negative rotation motor (3) connected to the upright post, and a motor shaft of the positive and negative rotation motor (3) is in power connection with the power input shaft (13).