Automatic telescopic safety area operation guardrail

Abstract

The utility model belongs to the technical field of road operation vehicles, and particularly provides an automatic telescopic safety area operation guardrail which comprises a guardrail body, a telescopic support and an electric push rod, the guardrail body is a rectangular frame, the guardrail body, the telescopic support and the electric push rod form one-side guardrail assemblies, and the two one-side guardrail assemblies are arranged in a bilateral symmetry mode. The warning device further comprises a connecting plate, a warning lamp, a warning board and a flexible connecting piece. The operation guardrail does not occupy extra space in a folded state, and can be unfolded to forcibly delineate an operation area when an operation vehicle works, so that external personnel or vehicles are prevented from entering the operation area, and the safety of the road operation vehicle in the operation process is improved; the electric push rod and the electric hinge are adopted, the market development trend is met, different automatic operation vehicles can be adapted, and a worker can complete unfolding operation of the guardrail in a cab through an electric control system.

Description

Technical Field

[0001] The utility model belongs to the technical field of road operation vehicles, and in particular provides an automatically retractable safety zone operation guardrail. Background Art

[0002] In modern urban traffic management, road maintenance operations are an important part of ensuring road safety and smooth traffic. The operations specifically include road sweeping operations, road repair operations, roadblock placement and recovery operations, etc.

[0003] At present, road operation vehicles in use on the market mainly rely on placing traffic cones to mark the use area during operation. There is a lack of mandatory constraints on the operation area. There is a possibility that pedestrians or vehicles on both sides of the street may mistakenly enter the operation area, which may interfere with construction work at the least and cause economic losses or casualties at worst.

[0004] Therefore, a mandatory safety protection facility is needed to optimize the working environment of road working vehicles. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatically retractable safety zone operation guardrail, comprising a guardrail body, a retractable bracket and an electric push rod, the guardrail body being a rectangular frame, the movable ends of the two retractable brackets and the movable end of the electric push rod being movably connected to the guardrail body, the fixed end of the retractable bracket being fixedly mounted on the rear end of the vehicle, and the fixed end of the electric push rod being hinged to the rear end of the vehicle;

[0006] The guardrail body, the telescopic bracket and the electric push rod constitute a single-sided guardrail component, and the two single-sided guardrail components are arranged symmetrically on the left and right.

[0007] Furthermore, it also includes a connecting plate, which is arranged perpendicular to the guardrail body, and the fixed end of the telescopic bracket is fixedly installed on the connecting plate. An extended hinge seat is provided in the middle of the side wall of the connecting plate, and the fixed end of the electric push rod is hinged at the extended hinge seat. The telescopic bracket and the electric push rod are assembled at the rear end of the vehicle through the connecting plate.

[0008] Furthermore, a plurality of warning lights are mounted on the frame of the guardrail body.

[0009] Furthermore, a plurality of warning signs are mounted on the frame of the guardrail body.

[0010] Furthermore, a flexible connector is installed between the two guardrail bodies.

[0011] Furthermore, the movable ends of the two telescopic brackets and the movable end of the electric push rod are movably connected to the guardrail body in a hinged manner.

[0012] Furthermore, the guardrail body is a rectangular frame consisting of two long rods and three short rods, the two long rods are arranged in parallel horizontally, the two short rods are vertically welded to the two ends of the long rods, and one short rod is vertically welded to the middle of the two long rods;

[0013] The front end surface of the guardrail body is provided with three hinges at equal intervals, and the movable ends of the two telescopic brackets and the movable end of the electric push rod are respectively hinged to the guardrail body through the three hinges.

[0014] Furthermore, the hinge is an electric hinge.

[0015] Furthermore, the movable ends of the two telescopic brackets and the movable end of the electric push rod are movably connected to the guardrail body in a sliding manner;

[0016] The guardrail body includes a primary frame and a secondary frame. The primary frame is a four-sided rectangular frame, and its two horizontal frames are hollow tubes. The secondary frame is a three-sided rectangular frame, and its two horizontal frames are inserted into the hollow tubes. The secondary frame can slide along the hollow tubes.

[0017] The movable end of the telescopic bracket is fixedly installed with a sleeve, and the two sleeves are respectively sleeved on the two hollow tubes on the primary frame. The primary frame can slide along the sleeves. A connecting mechanism is provided between the two sleeves, and the movable end of the electric push rod is connected to the connecting mechanism.

[0018] Furthermore, a gear assembly hole is provided on the side wall of the sleeve, a tooth surface is provided on the side wall of the hollow tube on the first-level frame, a motor is installed on the side of the sleeve, and a gear is installed on the output shaft of the motor, wherein the gear is located at the gear assembly hole, and the gear passes through the gear assembly hole and engages with the tooth surface.

[0019] The beneficial effects of using the utility model are:

[0020] The work guardrail does not take up extra space when stored. It can be unfolded when the work vehicle is working to forcibly enclose the work area, restricting outside personnel or vehicles from entering the work area, and improving the safety of road work vehicles during operation.

[0021] This application can be adapted to automated vehicles and is in line with market development trends. Workers can complete the guardrail deployment operation in the cab through the electronic control system, reducing the difficulty of operation and the manpower required for the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the first embodiment of the present invention in the stored state;

[0023] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention in the unfolded state;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model assembled on a work vehicle and deployed;

[0025] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present utility model in the unfolded state;

[0026] Figure 5 for Figure 4 The enlarged view of point a in the middle;

[0027] Reference numerals include:

[0028] 1. Guardrail body;

[0029] 101, primary frame; 102, secondary frame;

[0030] 2. Connecting plate;

[0031] 201, Extend the hinge seat;

[0032] 3. Telescopic bracket; 4. Electric push rod; 5. Hinge; 6. Warning sign; 7. Warning light; 8. Flexible connector;

[0033] 9. Sleeve;

[0034] 901, gear assembly hole;

[0035] 10. Tooth surface; 11. Motor; 12. Gear. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] Reference Figure 1-Figure 3 An automatic telescopic safety zone operation guardrail includes a guardrail body 1, a telescopic bracket 3 and an electric push rod 4. The guardrail body 1 is a rectangular frame. The movable ends of the two telescopic brackets 3 and the movable end of the electric push rod 4 are movably connected to the guardrail body 1. The fixed end of the telescopic bracket 3 is fixedly installed at the rear end of the vehicle, and the fixed end of the electric push rod 4 is hinged to the rear end of the vehicle.

[0039] The guardrail body 1, the telescopic bracket 3 and the electric push rod 4 constitute a single-sided guardrail assembly, and the two single-sided guardrail assemblies are arranged symmetrically on the left and right;

[0040] The single-side guardrail assembly has two working postures: stowed posture and unfolded posture;

[0041] When the single-side guardrail assembly is in the storage position, the guardrail body 1 is located in front of the telescopic bracket 3 and the electric push rod 4;

[0042] When the single-sided guardrail assembly is in the deployed position, the guardrail body 1 is located behind the telescopic bracket 3 and the electric push rod 4 .

[0043] It also includes a connecting plate 2, which is arranged perpendicular to the guardrail body 1. The fixed end of the telescopic bracket 3 is fixedly installed on the connecting plate 2. An extended hinge seat 201 is provided in the middle of the side wall of the connecting plate 2. The fixed end of the electric push rod 4 is hinged at the extended hinge seat 201. The telescopic bracket 3 and the electric push rod 4 are assembled at the rear end of the vehicle through the connecting plate 2.

[0044] A plurality of warning lights 7 are mounted on the frame of the guardrail body 1 .

[0045] A plurality of warning signs 6 are mounted on the frame of the guardrail body 1 .

[0046] A flexible connection piece 8 is assembled between the two guardrail bodies 1 .

[0047] After the guardrail main body 1 is unfolded, the staff hangs the flexible connector 8 between the two guardrail main bodies 1 to completely close the safety zone, further enhancing the safety restriction effect of the guardrail.

[0048] Preferably, the flexible connector 8 is an iron chain with a diameter of 15 mm to 20 mm.

[0049] Example 2

[0050] Compared with the first embodiment, the present embodiment is different in that:

[0051] Reference Figure 1-Figure 2 The movable ends of the two telescopic brackets 3 and the movable end of the electric push rod 4 are movably connected to the guardrail body 1 in a hinged manner;

[0052] Specifically, the guardrail body 1 is a rectangular frame consisting of two long rods and three short rods, the two long rods are arranged horizontally and parallel, the two short rods are vertically welded to the two ends of the long rods, and one short rod is vertically welded to the middle of the two long rods;

[0053] Three hinges 5 are arranged at equal intervals on the front end surface of the guardrail body 1 , and the movable ends of the two telescopic brackets 3 and the movable end of the electric push rod 4 are hinged to the guardrail body 1 through the three hinges 5 respectively.

[0054] When the working vehicle is in the stowed position, the guardrail body 1 is stowed on both sides of the vehicle and maintained in the stowed position by the positioning mechanism;

[0055] When the working vehicle enters the deployed posture, the staff operates the guardrail body 1 to rotate 180° around the hinge 5 and rotate it to the rear side of the vehicle. Then, the staff controls the electric push rod 4 to extend and retract, adjusts the distance between the two guardrail bodies 1, and completes the deployment of the guardrail body 1. The two guardrail bodies 1, the vehicle and the telescopic bracket 3 cooperate to define a rectangular area behind the vehicle as a safety zone to prevent vehicles or personnel on both sides from accidentally entering the working area of ​​the working vehicle.

[0056] Preferably, the hinge 5 is an electric hinge that can be electrically driven to rotate.

[0057] Example 3

[0058] Compared with the first embodiment, the present embodiment is different in that:

[0059] Reference Figure 4-Figure 5 The movable ends of the two telescopic brackets 3 and the movable end of the electric push rod 4 are movably connected to the guardrail body 1 in a sliding manner;

[0060] Specifically, the guardrail body 1 includes a primary frame 101 and a secondary frame 102. The primary frame 101 is a four-sided rectangular frame, and its two horizontal frames are hollow tubes. The secondary frame 102 is a three-sided rectangular frame, and its two horizontal frames are inserted into the hollow tubes. The secondary frame 102 can slide along the hollow tubes.

[0061] The movable end of the telescopic bracket 3 is fixedly installed with a sleeve 9, and the two sleeves 9 are respectively sleeved on the two hollow tubes on the primary frame 101. The primary frame 101 can slide along the sleeve 9. A connecting mechanism is provided between the two sleeves 9, and the movable end of the electric push rod 4 is connected to the connecting mechanism.

[0062] A gear assembly hole 901 is provided on the side wall of the sleeve 9, a tooth surface 10 is provided on the side wall of the hollow tube on the primary frame 101, a motor 11 is mounted on the side of the sleeve 9, and a gear 12 is mounted on the output shaft of the motor 11, wherein the gear 12 is located at the gear assembly hole 901 and the gear 12 passes through the gear assembly hole 901 and meshes with the tooth surface 10;

[0063] When the gear 12 rotates with the motor 11 , the hollow tube is driven to slide in the sleeve 9 through the tooth surface 10 .

[0064] When the work vehicle is in the stowed position, the guardrail body 1 is stowed on both sides of the vehicle, and the secondary frame 102 is stowed inside the primary frame 101;

[0065] When the working vehicle enters the deployed posture, the staff operates the motor 11 to start and drive the guardrail body 1 to extend backward. When it is extended to the maximum position, the electric push rod 4 is controlled to extend and retract to adjust the distance between the two guardrail bodies 1 to complete the deployment of the guardrail body 1. The two guardrail bodies 1, the vehicle and the telescopic bracket 3 cooperate to define a rectangular area on the rear side of the vehicle as a safety zone. The staff can pull out the secondary frame 102 according to needs to further expand the area of ​​the safety zone.

[0066] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scope based on the concept of the present invention. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of the present invention.

Claims

1. An automatically retractable safety zone operation guardrail, characterized by: It includes a guardrail body, a telescopic bracket and an electric push rod. The guardrail body is a rectangular frame. The movable ends of the two telescopic brackets and the movable end of the electric push rod are movably connected to the guardrail body. The fixed end of the telescopic bracket is fixedly installed at the rear end of the vehicle, and the fixed end of the electric push rod is hinged to the rear end of the vehicle. The guardrail body, the telescopic bracket and the electric push rod constitute a single-sided guardrail component, and the two single-sided guardrail components are arranged symmetrically on the left and right.

2. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: It also includes a connecting plate, which is arranged perpendicular to the guardrail body. The fixed end of the telescopic bracket is fixedly installed on the connecting plate. An extended hinge seat is provided in the middle of the side wall of the connecting plate. The fixed end of the electric push rod is hinged at the extended hinge seat. The telescopic bracket and the electric push rod are assembled at the rear end of the vehicle through the connecting plate.

3. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: A plurality of warning lights are assembled on the frame of the guardrail body.

4. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: A plurality of warning signs are assembled on the frame of the guardrail body.

5. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: A flexible connecting piece is assembled between the two guardrail bodies.

6. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: The movable ends of the two telescopic brackets and the movable end of the electric push rod are movably connected to the guardrail body in a hinged manner.

7. The automatic retractable safety zone operation guardrail according to claim 6, characterized in that: The guardrail body is a rectangular frame consisting of two long rods and three short rods, the two long rods are arranged horizontally and parallel, the two short rods are vertically welded to the two ends of the long rods, and one short rod is vertically welded to the middle of the two long rods; The front end surface of the guardrail body is provided with three hinges at equal intervals, and the movable ends of the two telescopic brackets and the movable end of the electric push rod are respectively hinged to the guardrail body through the three hinges.

8. The automatic retractable safety zone operation guardrail according to claim 7, characterized in that: The hinge is an electric hinge.

9. The automatic retractable safety zone operation guardrail according to claim 1, characterized in that: The movable ends of the two telescopic brackets and the movable end of the electric push rod are movably connected to the guardrail body in a sliding manner; The guardrail body includes a primary frame and a secondary frame. The primary frame is a four-sided rectangular frame, and its two horizontal frames are hollow tubes. The secondary frame is a three-sided rectangular frame, and its two horizontal frames are inserted into the hollow tubes. The secondary frame can slide along the hollow tubes. The movable end of the telescopic bracket is fixedly installed with a sleeve, and the two sleeves are respectively sleeved on the two hollow tubes on the primary frame. The primary frame can slide along the sleeves. A connecting mechanism is provided between the two sleeves, and the movable end of the electric push rod is connected to the connecting mechanism.

10. The automatic retractable safety zone operation guardrail according to claim 9, characterized in that: A gear assembly hole is provided on the side wall of the sleeve, a tooth surface is provided on the side wall of the hollow tube on the first-level frame, a motor is installed on the side of the sleeve, and a gear is installed on the output shaft of the motor, wherein the gear is located at the gear assembly hole, and the gear passes through the gear assembly hole and engages with the tooth surface.

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