Road guardrail lifting equipment

Abstract

The utility model relates to the technical field of highway construction, in particular to highway guardrail lifting equipment which comprises a base, a bracket hinged to one side of the base and a transmission mechanism arranged in the base. The transmission mechanism comprises a screw rod transversely and rotatably connected into the base, sliding blocks slidably connected to the two sides of the inner wall of the base, a first connecting rod with one end rotatably connected to the sliding blocks, and a base plate vertically and slidably connected to the bottom of the base; the other end of the first connecting rod is rotationally connected to the bracket; a wedge-shaped stop block is arranged on the base plate; the equipment is provided with the base plate with the wedge-shaped check block, during lifting operation, the sliding block pushes the check block, foot pads of the base plate move downwards to make contact with the ground, and the walking wheels do not bear lifting force any more. When a constructed highway is constructed, an anti-skid pad can be installed at the bottom of the foot pad, and when a non-constructed highway is constructed, a ground spear can be installed to be inserted into the ground, so that the sliding risk of equipment in the lifting process is reduced, the guardrail positioning is more stable, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, specifically a highway guardrail lifting device. Background Technology

[0002] During highway guardrail installation, lifting equipment is needed to facilitate positioning by workers. Commonly used equipment includes horizontal jacks, which can be screw-type, rack-and-pinion type, or hydraulic type. Screw-type jacks are simple in structure and not easily damaged, so they are frequently used in highway guardrail installation. However, during use, their bottom wheels are prone to slipping, leading to unstable guardrail positioning and affecting installation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a highway guardrail lifting device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a highway guardrail lifting device, comprising a base, a support hinged to one side of the base, and a transmission mechanism disposed within the base. The transmission mechanism includes a screw horizontally rotatably connected within the base, a slider slidably connected to both sides of the inner wall of the base, a first connecting rod rotatably connected at one end to the slider, and a pad vertically slidably connected to the bottom of the base; the other end of the first connecting rod is rotatably connected to the support, and a wedge-shaped stop is provided on the pad.

[0005] Furthermore, the base is equipped with wheels.

[0006] Furthermore, a lifter is hinged to the support, and a limiting rod is provided on the base at the bottom of the support. The lifter is rotatably connected to the limiting rod via a second connecting rod.

[0007] Furthermore, the pad is composed of a base plate and a plurality of pad feet disposed at the bottom of the base plate; the stop block is disposed on the base plate, the pad feet are slidably engaged with the bottom of the base, and a spring is sleeved on the pad feet, with the two ends of the spring connected to the base plate and the base respectively.

[0008] Furthermore, one end of the screw extends to the outside of the base and is connected to a throttle.

[0009] Furthermore, multiple positioning holes are equidistantly provided on one side of the base along the circumference of the screw, and a positioning screw is threaded onto the throttle, with the positioning holes being adapted to the positioning screw.

[0010] Furthermore, a push handle is provided on the base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. Enhanced Positioning Stability: This equipment is equipped with a pad featuring wedge-shaped stops. During lifting operations, the slider pushes the stops, causing the pad's feet to move downwards and contact the ground, relieving the wheels of the lifting force. For construction on completed roads, anti-slip mats can be installed at the bottom of the pads. For construction on unfinished roads, ground anchors can be inserted into the ground to reduce the risk of slippage during lifting, resulting in more stable guardrail positioning and improved installation efficiency.

[0013] 2. Convenient and flexible operation: One end of the screw is connected to a throttle, allowing operators to easily control the raising and lowering of the support and lift by turning the screw, making operation simple and labor-saving. Meanwhile, a push handle is installed on the base for easy movement of the equipment to the construction site, and the design of the wheels makes the equipment more flexible to move, reducing the labor intensity of construction workers. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention;

[0015] Figure 2 This is a rear view of the present invention;

[0016] Figure 3 This is a partial structural diagram of the present utility model;

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] In the picture:

[0019] 1. Base; 2. Support; 3. Screw; 4. Slider; 5. First connecting rod; 6. Pad; 7. Stop; 8. Traveling wheel; 9. Lifter; 10. Limit rod; 11. Second connecting rod; 12. Spring; 13. Throttle; 14. Positioning screw; 15. Push handle. Detailed Implementation

[0020] Please see Figures 1 to 4 A highway guardrail lifting device comprises a base 1, a support 2, and a transmission mechanism. The base 1 includes a rectangular base with four sides, and two sets of wheels 8 are mounted on the base. A push handle 15 is also provided on the base 1. The support 2... Figure 1 As shown, one end of the support 2 is hinged to one side of the base 1 via a bearing; and the other end of the support 2 is hinged to... Figure 1 The lifter 9 shown has a limiting rod 10 horizontally mounted on the base 1 at the bottom of the support 2. One end of the second connecting rod 11 is rotatably connected to the bottom of the lifter 9, and the other end of the second connecting rod 11 is rotatably connected to the limiting rod 10 (this is a common structure for horizontal jacks). The transmission mechanism is located inside the base 1 and is connected to the support 2 for driving the support 2 to lift.

[0021] Specifically,

[0022] The transmission mechanism consists of a screw 3, a slider 4, a first connecting rod 5, and a pad 6. The screw 3 is laterally rotatably connected between opposite sides of the base 1 via bearings. The slider 4 has protrusions at both ends, and grooves are formed on the other two opposite sides of the base 1. The protrusions slide within the grooves, allowing the slider 4 to slide along the inner wall of the base 1. There are two first connecting rods 5; one end is rotatably connected to the slider 4 via a bearing, and the other end is rotatably connected to the support 2 via a bearing. The pad 6 consists of a base plate and multiple feet located at the bottom of the base plate; wedge-shaped stops 7 are provided on the base plate, such as… Figure 4 As shown, the pad can slide vertically at the bottom of the base 1, and a spring 12 is fitted on the pad. The two ends of the spring 12 are connected to the base plate and the base 1, respectively.

[0023] One end of the screw 3 extends to the outside of the base 1 and is connected to a handle 13. Multiple positioning holes are equidistantly spaced along the circumference of the screw 3 on one side of the base 1. A positioning screw 14 is threaded onto the handle 13, and the positioning holes are adapted to the positioning screw 14. When the screw 3 rotates to a suitable angle, the positioning screw 14 is tightened, causing its end to insert into the corresponding positioning hole, thus fixing the position of the screw 3 at this time (or, positioning holes can be omitted, and the positioning screw 14 can be tightened so that its end rests against the side of the base 1, relying on friction for positioning).

[0024] Working process and principle of this utility model:

[0025] When the highway needs to be lifted, first move the device to a suitable position using the push handle 15. Then turn the throttle 13, which in turn drives the screw 3 to rotate, thereby moving the slider 4. Through the connection between the first connecting rod 5 and the support 2, the support 2 rotates along the connection point with the base 1, thereby moving the lifter 9 upward until it hits the guardrail. Finally, turn the positioning screw 14 so that its end is inserted into the positioning hole.

[0026] When slider 4 moves to the position where stop 7 is located, slider 4 moves and presses down on stop 7, causing the pad to move downward and move out of the bottom of base 1, making contact with the ground. At this time, the traveling wheel 8 no longer serves as a load-bearing point, and the lifting force is borne by the pad. If construction is carried out on a completed road, an anti-slip mat is installed at the bottom of the pad to further prevent the device from sliding and improve load-bearing capacity. If construction is carried out on a road yet to be completed, a ground anchor is installed at the bottom of the pad to insert it into the ground, improving the stability of the device during use.

Claims

1. A highway guardrail lifting device, comprising a base (1), a support (2) hinged to one side of the base (1), and a transmission mechanism disposed within the base (1), characterized in that, The transmission mechanism includes a screw (3) that is laterally rotatably connected to the base (1), a slider (4) that is slidably connected to both sides of the inner wall of the base (1), a first connecting rod (5) that is rotatably connected to the slider (4) at one end, and a pad (6) that is vertically slidably connected to the bottom of the base (1); the other end of the first connecting rod (5) is rotatably connected to the support (2), and the pad (6) is provided with a wedge-shaped stop (7).

2. The lifting device as described in claim 1, characterized in that, The base (1) is provided with wheels (8).

3. The lifting device as described in claim 1, characterized in that, A lifter (9) is hinged to the support (2), and a limiting rod (10) located at the bottom of the support (2) is provided on the base (1). The lifter (9) is rotatably connected to the limiting rod (10) through a second connecting rod (11).

4. The lifting device as described in claim 1, characterized in that, The pad (6) consists of a base plate and multiple pads located at the bottom of the base plate; the stop block (7) is located on the base plate, the pads slide in cooperation with the bottom of the base (1), and a spring (12) is sleeved on the pads, with the two ends of the spring (12) connected to the base plate and the base (1) respectively.

5. The lifting device as described in claim 1, characterized in that, One end of the screw (3) extends to the outside of the base (1) and is connected to a throttle (13).

6. The lifting device as described in claim 5, characterized in that, The base (1) has multiple positioning holes equidistantly spaced along the circumference of the screw (3) on one side. The throttle (13) is threaded with a positioning screw (14), and the positioning holes are adapted to the positioning screw (14).

7. The lifting device as described in claim 6, characterized in that, The base (1) is provided with a push handle (15).

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