Lifting device for electromechanical maintenance of expressway

Abstract

The invention discloses a lifting device for highway electromechanical maintenance, which comprises a base table, a balance adjusting mechanism is arranged at the bottom of the base table, a scissor type lifting mechanism is arranged on the base table, the scissor type lifting mechanism is connected with a lifting platform, an inclination detection device is arranged on the lifting platform, and the inclination detection device is connected with a control device. The control device is connected with the balance adjusting mechanism and used for controlling the operation state of the balance adjusting mechanism based on the inclination of the lifting platform so that the lifting platform can be kept in the horizontal state. The balance adjusting mechanism is arranged at the bottom of the base table, the inclination degree of the lifting platform is monitored through the inclination detection device, the lifting platform is adjusted through the balance adjusting mechanism, and therefore the lifting platform is adjusted to be in the horizontal state. The problem that the gravity center is unstable due to inclination of the lifting platform is effectively solved, and the lifting platform is suitable for various complex slope working environments.

Description

Technical Field

[0001] The invention belongs to the technical field of electromechanical maintenance auxiliary equipment, and particularly relates to a lifting device for highway electromechanical maintenance. Background Art

[0002] Highways are one of the important infrastructure in transportation. According to their functions, highways are divided into different types. Among them, expressways are one type. Expressways are multi-lane roads that are specially designed for motor vehicles to drive in separate directions and lanes, with all accesses controlled. In order to ensure the normal passage of expressways and monitor passing vehicles, there are many electromechanical devices on expressways. Expressway electromechanical devices are mainly responsible for the operation of monitoring, toll collection, communication, lighting, power distribution, fire alarm, etc. In order not to affect the normal passage of vehicles and improve the coverage range, these electromechanical devices are often installed at high places. For maintaining the normal operation of the expressway electromechanical system, not only high-quality electromechanical devices need to be configured, but also the electromechanical devices need to be maintained and serviced daily. During the maintenance of electromechanical devices, lifting equipment is often used.

[0003] Chinese patent document CN221217090U discloses an auxiliary lifting frame for highway electromechanical maintenance, belonging to the technical field of highway electromechanical maintenance; it includes: a base, on the top of the base is installed a lifting structure, on the top of the lifting structure is installed a lifting platform, the outer wall of the lifting platform is slidably connected with a protective frame, and a lifting mechanism is installed between the lifting platform and the protective frame; the protective frame includes: a frame body and a rotating plate, the frame body is a three-sided baffle structure, a rotating plate is rotatably connected in the rear opening of the frame body, and connecting shafts are installed on the bottom walls on both sides of the rotating plate, and the connecting shafts are rotatably connected with the frame body. This auxiliary lifting frame for highway electromechanical maintenance drives the protective frame to lift through the lifting mechanism, which is convenient to lower the protective frame to the bottom, providing convenience for loading materials from different directions and users to get onto the lifting platform; rotating the knob, the knob drives the second rotating shaft to rotate, so that the first gear meshes with the second gear to rotate, and the second gear drives the connecting shaft to rotate.

[0004] The auxiliary lifting frame in the above patent document uses a scissor mechanism as the main body for height lifting. When the scissor mechanism changes its height, its center of gravity also changes, which causes the lifting platform to be extremely prone to tipping, especially on some sloping ground, the lifting platform is more likely to tilt or overturn, posing certain safety hazards. Summary of the Invention

[0005] The purpose of the invention is to provide a lifting device for highway electromechanical maintenance to solve the above problems existing in the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A lifting device for highway electromechanical maintenance, including a base platform, a balance adjustment mechanism is provided at the bottom of the base platform, a scissor lifting mechanism is provided on the base platform, the scissor lifting mechanism is connected to a lifting platform, an inclination detection device is provided on the lifting platform, the inclination detection device is connected to a control device, and the control device is connected to the balance adjustment mechanism. The control device is used to control the operating state of the balance adjustment mechanism based on the inclination of the lifting platform so that the lifting platform maintains a horizontal state.

[0007] During the process of driving the lifting platform to rise and fall by using the scissor lifting mechanism, the center of gravity of the scissor lifting mechanism will change, which will cause the lifting platform to be prone to rollover. At this time, the inclination detection device can detect the inclination of the lifting platform, and then send the detected inclination data to the control device. The control device controls the operation of the balance adjustment mechanism, and the balance adjustment mechanism adjusts the inclination of the lifting platform to keep the lifting platform in a horizontal state during the lifting and lowering process; in addition, after the scissor lifting mechanism stops moving, the inclination detection device can also detect the inclination of the lifting platform. For some inclined ground, the balance adjustment mechanism adjusts the inclination of the lifting platform to keep the lifting platform in a horizontal state, improving the safety of the staff and making highway electromechanical maintenance safer and more stable.

[0008] As an optional implementation manner of the above technical solution, the balance adjustment mechanism includes a front-back inclination adjustment component and a left-right inclination adjustment component. Both the front-back inclination adjustment component and the left-right inclination adjustment component are connected to the control device. The front-back inclination adjustment component is used to adjust the front-back inclination state of the lifting platform, and the left-right inclination adjustment component is used to adjust the left-right inclination state of the lifting platform.

[0009] The present invention adopts the above technical solutions. According to the front-back and left-right inclination states of the lifting platform, the control device controls the front-back inclination adjustment component and the left-right inclination adjustment component to make corresponding adjustments respectively to maintain the balance of the lifting platform. When driving the lifting platform to rise and fall by using the scissor lifting mechanism, if the lifting platform tilts left and right, the left-right inclination adjustment component is used to adjust the left-right inclination state of the lifting platform; if the lifting platform tilts front and back, the front-back inclination adjustment component is used to adjust the front-back inclination state of the lifting platform. In addition, when the lifting device is used on a slope, the front-back inclination adjustment component can be used to adjust the front-back inclination state of the lifting platform to keep the lifting platform balanced.

[0010] As an alternative implementation of the above technical solution, both the front-back tilt adjustment assembly and the left-right tilt adjustment assembly include a support frame, a first extension rod, a first hydraulic telescopic foot, a second extension rod, and a second hydraulic telescopic foot. The support frame is horizontally arranged on the base table. The first extension rod and the second extension rod are respectively slidably arranged at both ends of the support frame. The first hydraulic telescopic foot is arranged on the first extension rod, and the second hydraulic telescopic foot is arranged on the second extension rod. The hydraulic control circuits of the first hydraulic telescopic foot and the second hydraulic telescopic foot are both connected to the control device.

[0011] With the above technical solution of the present invention, the support frames of the front-back tilt adjustment assembly and the left-right tilt adjustment assembly are arranged in a cross shape. A total of four hydraulic telescopic feet are arranged around the base table, namely two first hydraulic telescopic feet and two second hydraulic telescopic feet. Among them, one first hydraulic telescopic foot is arranged at the front end of the base table, and one second hydraulic telescopic foot is arranged at the rear end of the base table; the other first hydraulic telescopic foot is arranged at the left end of the base table, and the other second hydraulic telescopic foot is arranged at the right end of the base table. The first hydraulic telescopic foot and the second hydraulic telescopic foot of the front-back tilt adjustment assembly jointly adjust the front-back tilt state of the lifting platform, and the first hydraulic telescopic foot and the second hydraulic telescopic foot of the left-right tilt adjustment assembly jointly adjust the left-right tilt state of the lifting platform, so as to keep the lifting platform balanced.

[0012] As an alternative implementation of the above technical solution, both the first hydraulic telescopic foot and the second hydraulic telescopic foot are equipped with stroke detection devices, and the stroke detection devices are connected to the control device.

[0013] As an alternative implementation of the above technical solution, the tilt detection device includes a three-dimensional tilt sensor. The three-dimensional tilt sensor is used to obtain the three-dimensional tilt of the lifting platform. The control device controls the telescopic stroke of the first hydraulic telescopic foot and the second hydraulic telescopic foot based on the three-dimensional tilt of the lifting platform, so as to keep the lifting platform in a horizontal state.

[0014] As an alternative implementation of the above technical solution, the scissor lift mechanism includes a first X-shaped telescopic arm, a second X-shaped telescopic arm, and a driving oil cylinder. Both the first X-shaped telescopic arm and the second X-shaped telescopic arm are arranged between the base table and the lifting platform. A connecting rod is connected between the first X-shaped telescopic arm and the second X-shaped telescopic arm. The driving oil cylinder is equipped with a hydraulic motor connected to the control device. One end of the driving oil cylinder is arranged on the base table, and the other end of the driving oil cylinder is connected to the first X-shaped telescopic arm or the second X-shaped telescopic arm.

[0015] As an alternative embodiment of the above technical solution, a vertical lifting mechanism is connected between the base platform and the lifting platform, and both the vertical lifting mechanism and the scissor lifting mechanism are connected to a control device, which is used to control the synchronous movement of the vertical lifting mechanism and the scissor lifting mechanism.

[0016] As an alternative embodiment of the above technical solution, the vertical lifting mechanism includes four electric push rods, which are respectively arranged around the bottom of the lifting platform, and all four electric push rods are connected to the control device.

[0017] As an alternative embodiment of the above technical solution, the lifting platform includes a lifting bottom plate and a protective fence. The bottom of the lifting bottom plate is connected to the scissor lifting mechanism, and the protective fence is arranged on the lifting bottom plate.

[0018] As an alternative embodiment of the above technical solution, rollers are provided at the bottom of the base platform.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention provides a lifting device for highway electromechanical maintenance. An inclination detection device is provided on the lifting platform, and the control device controls the operating state of the balance adjustment mechanism based on the inclination of the lifting platform so that the lifting platform remains in a horizontal state. The present invention is provided with a balance adjustment mechanism at the bottom of the base platform, monitors the inclination degree of the lifting platform by using the inclination detection device, and adjusts the lifting platform through the balance adjustment mechanism, thereby adjusting the lifting platform to a horizontal state. The structure of the present invention is simple, can improve the stability of the lifting platform, is beneficial to avoiding the phenomenon of side tilt or rollover of the lifting platform, effectively solves the problem of unstable center of gravity caused by the inclination of the lifting platform, and is applicable to various complex slope working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a lifting device for highway electromechanical maintenance in an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of the balance adjustment mechanism in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the front-back inclination adjustment component and the left-right inclination adjustment component in an embodiment of the present invention;

[0024] Figure 4 is a control block diagram of a lifting device for highway electromechanical maintenance in an embodiment of the present invention.

[0025] In the figure: 1 - Base platform; 2 - Balance adjustment mechanism; 3 - Scissor lift mechanism; 4 - Lift platform; 5 - Inclination detection device; 6 - Control device; 7 - Front - rear inclination adjustment assembly; 8 - Left - right inclination adjustment assembly; 9 - Support frame; 10 - First extension rod; 11 - First hydraulic telescopic support foot; 12 - Second extension rod; 13 - Second hydraulic telescopic support foot; 14 - Hydraulic control circuit; 15 - Stroke detection device; 16 - Hydraulic motor; 17 - Vertical lift mechanism; 18 - Electric push rod; 19 - Lift bottom plate; 20 - Protective fence; 21 - Roller. Detailed implementation manner

[0026] As Figures 1-4 shown, this embodiment provides a lifting device for highway electromechanical maintenance, including a base platform 1. A balance adjustment mechanism 2 is provided at the bottom of the base platform 1. The balance adjustment mechanism 2 can contact the ground and support the base platform 1. By using the balance adjustment mechanism 2, the lifting device can be in a balanced state, avoiding tilting or overturning, and improving the safety of using the lifting device. To facilitate the movement of the lifting device, rollers 21 are provided at the bottom of the base platform 1. When the lifting device is not in use, the balance adjustment mechanism 2 is suspended, and the rollers 21 contact the ground, enabling the movement and transportation of the lifting device.

[0027] As Figure 1 shown, a scissor lift mechanism 3 is provided on the base platform 1. The scissor lift mechanism 3 is connected to a lift platform 4. The scissor lift mechanism 3 is used to drive the lift platform 4 to move up and down, so that staff can perform daily maintenance and servicing on electromechanical equipment. An inclination detection device 5 is provided on the lift platform 4. As Figure 4 shown, the inclination detection device 5 is connected to a control device 6. The control device 6 is connected to the balance adjustment mechanism 2. The control device 6 is used to control the operating state of the balance adjustment mechanism 2 based on the inclination of the lift platform 4, so as to keep the lift platform 4 in a horizontal state.

[0028] During the process of driving the lift platform 4 to move up and down by using the scissor lift mechanism 3, the center of gravity of the scissor lift mechanism 3 will change, which may cause the lift platform 4 to be prone to tipping. At this time, the inclination detection device 5 can detect the inclination of the lift platform 4, and then send the detected inclination data to the control device 6. The control device 6 controls the operation of the balance adjustment mechanism 2, and the balance adjustment mechanism 2 adjusts the inclination of the lift platform 4 to keep the lift platform 4 in a horizontal state during the lifting process. In addition, after the scissor lift mechanism 3 stops moving, the inclination detection device 5 can also detect the inclination of the lift platform 4. For some inclined ground, the balance adjustment mechanism 2 adjusts the inclination of the lift platform 4 to keep the lift platform 4 in a horizontal state, improving the safety of staff and making highway electromechanical maintenance safer and more stable.

[0029] The present invention is provided with a balance adjustment mechanism 2 at the bottom of the base table 1. The inclination detection device 5 is used to monitor the inclination degree of the lifting platform 4, and the lifting platform 4 is adjusted by the balance adjustment mechanism 2, so as to adjust the lifting platform 4 to a horizontal state. The structure of the present invention is simple, which can improve the stability of the lifting platform 4, is beneficial to avoiding the phenomena of side tilt or rollover of the lifting platform 4, effectively solves the problem of unstable center of gravity caused by the inclination of the lifting platform 4, and is applicable to various complex slope working environments.

[0030] As Figure 2 shown, in a specific embodiment, the balance adjustment mechanism 2 includes a front-back inclination adjustment component 7 and a left-right inclination adjustment component 8. The front-back inclination adjustment component 7 and the left-right inclination adjustment component 8 are both connected to the control device 6. The front-back inclination adjustment component 7 is used to adjust the front-back inclination state of the lifting platform 4, and the left-right inclination adjustment component 8 is used to adjust the left-right inclination state of the lifting platform 4. According to the front-back and left-right inclination states of the lifting platform 4, the control device 6 controls the front-back inclination adjustment component 7 and the left-right inclination adjustment component 8 to make corresponding adjustments respectively to maintain the balance of the lifting platform 4. When the scissor lifting mechanism 3 is used to drive the lifting platform 4 to lift, if the lifting platform 4 tilts left and right, the left-right inclination adjustment component 8 is used to adjust the left-right inclination state of the lifting platform 4; if the lifting platform 4 tilts front and back, the front-back inclination adjustment component 7 is used to adjust the front-back inclination state of the lifting platform 4. In addition, when the lifting device is used on a slope, the front-back inclination adjustment component 7 can be used to adjust the front-back inclination state of the lifting platform 4 to keep the lifting platform 4 balanced.

[0031] As Figure 3 shown, specifically, the front-back inclination adjustment component 7 and the left-right inclination adjustment component 8 both include a support frame 9, a first extension rod 10, a first hydraulic telescopic support foot 11, a second extension rod 12 and a second hydraulic telescopic support foot 13. The support frame 9 is horizontally arranged on the base table 1. The first extension rod 10 and the second extension rod 12 are respectively slidably arranged at both ends of the support frame 9. The first hydraulic telescopic support foot 11 is arranged on the first extension rod 10, and the second hydraulic telescopic support foot 13 is arranged on the second extension rod 12. The hydraulic control circuits 14 of the first hydraulic telescopic support foot 11 and the second hydraulic telescopic support foot 13 are both connected to the control device 6, and the control device 6 controls each first hydraulic telescopic support foot 11 and the second hydraulic telescopic support foot 13 to perform telescopic activities. The first hydraulic telescopic support foot 11 and the second hydraulic telescopic support foot 13 are both provided with a stroke detection device 15, and the stroke detection device 15 is connected to the control device 6.

[0032] The support frames 9 of the front-back tilt adjustment assembly 7 and the support frames 9 of the left-right tilt adjustment assembly 8 are arranged in a cross shape. A total of four hydraulic telescopic feet are provided around the base table 1, namely two first hydraulic telescopic feet 11 and two second hydraulic telescopic feet 13. Among them, one first hydraulic telescopic foot 11 is arranged at the front end of the base table 1, and one second hydraulic telescopic foot 13 is arranged at the rear end of the base table 1; the other first hydraulic telescopic foot 11 is arranged at the left end of the base table 1, and the other second hydraulic telescopic foot 13 is arranged at the right end of the base table 1. The first hydraulic telescopic foot 11 and the second hydraulic telescopic foot 13 of the front-back tilt adjustment assembly 7 jointly adjust the front-back tilt state of the lifting platform 4, and the first hydraulic telescopic foot 11 and the second hydraulic telescopic foot 13 of the left-right tilt adjustment assembly 8 jointly adjust the left-right tilt state of the lifting platform 4, so as to keep the lifting platform 4 balanced.

[0033] In a specific embodiment, the tilt detection device 5 includes a three-dimensional tilt sensor, and the three-dimensional tilt sensor is used to obtain the three-dimensional tilt of the lifting platform 4. The control device 6 controls the telescopic stroke of the first hydraulic telescopic foot 11 and the second hydraulic telescopic foot 13 based on the three-dimensional tilt of the lifting platform 4, so that the lifting platform 4 maintains a horizontal state. The three-dimensional tilt of the lifting platform 4 includes the front-back tilt and the left-right tilt. The control device 6 adjusts the front-back tilt of the lifting platform 4 by using the first hydraulic telescopic foot 11 and the second hydraulic telescopic foot 13 of the front-back tilt adjustment assembly 7 according to the three-dimensional tilt of the lifting platform 4, and adjusts the left-right tilt of the lifting platform 4 by using the first hydraulic telescopic foot 11 and the second hydraulic telescopic foot 13 of the left-right tilt adjustment assembly 8.

[0034] Among them, the scissor lift mechanism 3 includes a first X-shaped telescopic arm, a second X-shaped telescopic arm and a driving oil cylinder. The first X-shaped telescopic arm and the second X-shaped telescopic arm are both arranged between the base table 1 and the lifting platform 4. The first X-shaped telescopic arm and the second X-shaped telescopic arm are arranged side by side. A connecting rod is connected between the first X-shaped telescopic arm and the second X-shaped telescopic arm to increase the telescopic stability of the first X-shaped telescopic arm and the second X-shaped telescopic arm. The driving oil cylinder is provided with a hydraulic motor 16 connected to the control device 6. One end of the driving oil cylinder is arranged on the base table 1, and the other end of the driving oil cylinder is connected to the first X-shaped telescopic arm or the second X-shaped telescopic arm. The hydraulic motor 16 of the driving oil cylinder is connected to the control device 6, and the control device 6 controls the driving oil cylinder to realize the lifting control of the lifting platform 4.

[0035] In order to further improve the lifting stability of the lifting platform 4, a vertical lifting mechanism 17 is connected between the base platform 1 and the lifting platform 4, and the vertical lifting mechanism 17 and the scissor-type lifting mechanism 3 are both connected to the control device 6, and the control device 6 is used to control the vertical lifting mechanism 17 and the scissor-type lifting mechanism 3 to move synchronously. Through the synchronous lifting activities of the vertical lifting mechanism 17 and the scissor-type lifting mechanism 3, the lifting of the lifting platform 4 can be made more stable, the lifting platform 4 can be prevented from tilting, and the operation safety can be improved. Specifically, the vertical lifting mechanism 17 includes four electric push rods 18, and the four electric push rods 18 are respectively arranged around the bottom of the lifting platform 4, and the four electric push rods 18 are all connected to the control device 6. The control device 6 controls the synchronous movement of the driving cylinder and the four electric push rods 18 to realize the stable lifting function of the lifting platform 4.

[0036] like Figure 1 As shown, in a specific embodiment, the lifting platform 4 includes a lifting bottom plate 19 and a protective fence 20, the bottom of the lifting bottom plate 19 is connected to the scissor-type lifting mechanism 3, and the protective fence 20 is arranged on the lifting bottom plate 19. The protective fence 20 improves the protection effect on the staff and can prevent the staff from falling from a height.

[0037] In the description of the present invention, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art may combine the features of different embodiments. The protection scope of the present invention is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present invention, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the protection scope of the present invention.

Claims

1. A lifting device for electromechanical maintenance of highways, characterized in that: The invention comprises a base platform (1), wherein a balance adjustment mechanism (2) is provided at the bottom of the base platform (1), a scissor-type lifting mechanism (3) is provided on the base platform (1), the scissor-type lifting mechanism (3) is connected to a lifting platform (4), an inclination detection device (5) is provided on the lifting platform (4), the inclination detection device (5) is connected to a control device (6), the control device (6) is connected to the balance adjustment mechanism (2), and the control device (6) is used to control the operating state of the balance adjustment mechanism (2) based on the inclination of the lifting platform (4), so as to keep the lifting platform (4) in a horizontal state.

2. The highway electromechanical maintenance lifting device according to claim 1 is characterized in that: The balance adjustment mechanism (2) comprises a front-to-back tilt adjustment component (7) and a left-to-right tilt adjustment component (8), both of which are connected to the control device (6), the front-to-back tilt adjustment component (7) is used to adjust the front-to-back tilt state of the lifting platform (4), and the left-to-right tilt adjustment component (8) is used to adjust the left-to-right tilt state of the lifting platform (4).

3. The highway electromechanical maintenance lifting device according to claim 2 is characterized in that: The front and rear tilt adjustment assembly (7) and the left and right tilt adjustment assembly (8) both comprise a support frame (9), a first extension rod (10), a first hydraulic telescopic support leg (11), a second extension rod (12) and a second hydraulic telescopic support leg (13); the support frame (9) is transversely arranged on the base platform (1); the first extension rod (10) and the second extension rod (12) are slidably arranged at two ends of the support frame (9), respectively; the first hydraulic telescopic support leg (11) is arranged on the first extension rod (10); the second hydraulic telescopic support leg (13) is arranged on the second extension rod (12); and the hydraulic control circuits (14) of the first hydraulic telescopic support leg (11) and the second hydraulic telescopic support leg (13) are both connected to the control device (6).

4. The highway electromechanical maintenance lifting device according to claim 3 is characterized in that: The first hydraulic telescopic support leg (11) and the second hydraulic telescopic support leg (13) are both provided with a stroke detection device (15), and the stroke detection device (15) is connected to the control device (6).

5. The highway electromechanical maintenance lifting device according to claim 3 is characterized in that: The inclination detection device (5) comprises a three-dimensional inclination sensor, which is used to obtain the three-dimensional inclination of the lifting platform (4). The control device (6) controls the telescopic stroke of the first hydraulic telescopic support leg (11) and the second hydraulic telescopic support leg (13) based on the three-dimensional inclination of the lifting platform (4), so as to keep the lifting platform (4) in a horizontal state.

6. The highway electromechanical maintenance lifting device according to claim 1, characterized in that: The scissor-type lifting mechanism (3) comprises a first X-shaped telescopic arm, a second X-shaped telescopic arm and a driving cylinder, wherein the first X-shaped telescopic arm and the second X-shaped telescopic arm are both arranged between a base platform (1) and a lifting platform (4), a connecting rod is connected between the first X-shaped telescopic arm and the second X-shaped telescopic arm, and the driving cylinder is equipped with a hydraulic motor (16) connected to a control device (6), one end of the driving cylinder is arranged on the base platform (1), and the other end of the driving cylinder is connected to the first X-shaped telescopic arm or the second X-shaped telescopic arm.

7. The lifting device for highway electromechanical maintenance according to claim 1, characterized in that: A vertical lifting mechanism (17) is connected between the base platform (1) and the lifting platform (4); the vertical lifting mechanism (17) and the scissor-type lifting mechanism (3) are both connected to a control device (6); and the control device (6) is used to control the vertical lifting mechanism (17) and the scissor-type lifting mechanism (3) to move synchronously.

8. The lifting device for highway electromechanical maintenance according to claim 7 is characterized in that: The vertical lifting mechanism (17) comprises four electric push rods (18), which are respectively arranged around the bottom of the lifting platform (4), and the four electric push rods (18) are all connected to the control device (6).

9. The highway electromechanical maintenance lifting device according to claim 1, characterized in that: The lifting platform (4) comprises a lifting base plate (19) and a protective fence (20); the bottom of the lifting base plate (19) is connected to a scissor-type lifting mechanism (3); and the protective fence (20) is arranged on the lifting base plate (19).

10. The lifting device for highway electromechanical maintenance according to claim 1, characterized in that: The bottom of the base platform (1) is provided with a roller (21).

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