A lifting device for underpass construction

Abstract

The utility model discloses a lifting device for underpass construction, including a supporting chassis, a plurality of wheels are arranged on both sides of the supporting chassis, a lifting plate is arranged on the supporting chassis, and a scissor lifting mechanism for driving the lifting plate to rise and fall is arranged on the supporting chassis; a climbing frame mechanism is arranged on one side of the lifting plate, and the climbing frame mechanism includes a pair of first ladder legs arranged at the lower end of the lifting plate, a pair of second ladder legs arranged on the supporting chassis corresponding to the first ladder legs, and ladder steps arranged between the two first ladder legs and the two second ladder legs, the second ladder legs are slidably arranged in the first ladder legs, and an opening for the ladder steps to slide is arranged on one side of the first ladder legs, and a passage opening for personnel to pass through is arranged on the lifting plate corresponding to the first ladder leg. The utility model has a reasonable design and a simple structure, and effectively facilitates the use of the lifting device during underpass construction, improves construction efficiency, and also improves the stability of the lifting device, ensuring the use effect of the lifting device.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, in particular to a lifting device for underpass construction. Background Art

[0002] As traffic volume continues to increase, congestion is becoming more and more serious. In the future, the development of urban expressways will be forced to be built as elevated lines or underpasses, tunnels, etc. due to land shortage. Road underpasses are widely used as an effective means of developing intricate urban roads.

[0003] During the construction under the road, various structural frames need to be installed. At this time, lifting equipment is needed to assist the construction. When the existing lifting equipment is used, the operator may need to go up and down frequently to operate the construction equipment. At this time, frequent lifting equipment is required, and the personnel also need to climb the equipment, which makes the construction extremely inconvenient. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that frequent lifting equipment is required and personnel also need to climb equipment, which makes construction extremely inconvenient, and proposes a lifting device for underpass construction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lifting device for underpass construction, comprising a supporting chassis, a plurality of wheels are arranged on both sides of the supporting chassis, a lifting plate is arranged on the supporting chassis, and a scissor lifting mechanism for driving the lifting plate to rise and fall is arranged on the supporting chassis;

[0007] A climbing frame mechanism is provided on one side of the lifting platform, and the climbing frame mechanism includes a pair of first ladder legs arranged at the lower end of the lifting platform, a pair of second ladder legs arranged on the supporting chassis and corresponding to the first ladder legs, and ladder steps arranged between the two first ladder legs and the two second ladder legs, the second ladder leg is slidably arranged in the first ladder leg, and an opening for the ladder step to slide is provided on the side close to the first ladder leg, and a passage opening for people to pass through is provided on the lifting platform corresponding to the first ladder leg.

[0008] Preferably, the scissors lift mechanism includes a bidirectional stud rotatably mounted on a supporting chassis, a driving motor for driving the bidirectional stud to rotate, a sliding seat symmetrically arranged on both sides of the bidirectional stud and threadedly connected thereto, and a plurality of connecting rods arranged on both sides of the sliding seat that are connected end to end and hinged, wherein one end of the connecting rod located on the uppermost side and the lowermost side is rotatably connected to the lifting plate and the sliding seat, respectively.

[0009] Preferably, rotating pins are provided at the intersecting parts of the linkage rods, and reinforcing rods are fixedly connected between the rotating pins at the same horizontal height on both sides.

[0010] More preferably, a plurality of sliding rods parallel to the bidirectional studs are provided in the supporting chassis, and the sliding rods penetrate the sliding seat and are slidably connected thereto.

[0011] Preferably, a fixing seat is provided in the middle of the supporting chassis, and a plurality of telescopic lifting rods are connected between the fixing seat and the lifting plate.

[0012] More preferably, the telescopic lifting rod is an electric support rod.

[0013] Preferably, a protective fence is detachably installed above the lifting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, through the design of the climbing frame mechanism, when the lifting equipment is lifted to any height, the operator can easily climb to the lifting plate to carry out construction and operate the construction equipment, without the need to frequently lift the equipment, which is suitable for use in different construction scenes and facilitates construction operations;

[0016] 2. In the utility model, by setting the telescopic lifting rod as an electric support rod or a hydraulic rod, it can assist the lifting plate to rise and fall and also assist the lifting plate to stay at any height, thereby ensuring the stability of the lifting equipment and increasing the lifting capacity of the lifting plate.

[0017] The utility model has reasonable design and simple structure, effectively facilitates the use of lifting equipment during underpass construction, improves construction efficiency, and also improves the stability of the lifting equipment, thereby ensuring the use effect of the lifting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the utility model.

[0020] Figure 3 It is a front structural cross-sectional schematic diagram of the utility model.

[0021] In the figure: supporting chassis 1, wheels 11, scissor lift mechanism 2, bidirectional studs 21, drive motor 211, slide seat 22, slide rod 221, linkage rod 23, reinforcement rod 24, lift plate 3, protective fence 31, fixed seat 4, telescopic lift rod 5, climbing frame mechanism 6, first ladder leg 61, second ladder leg 62, ladder step 63, channel opening 64. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-3 A lifting device for underpass construction includes a supporting chassis 1, and a plurality of wheels 11 are arranged on both sides of the supporting chassis 1 to facilitate the movement of the lifting device. A lifting plate 3 is arranged on the supporting chassis 1 to install equipment required for underpass construction, such as electromechanical equipment, etc., and can also drive construction personnel to lift, which is convenient for construction operations. A scissor lifting mechanism 2 is arranged on the supporting chassis 1 to drive the lifting plate 3 to rise and fall. The supporting chassis 1 is driven to rise and fall by the scissor lifting mechanism 2.

[0024] A climbing frame mechanism 6 is provided on one side of the lifting plate 3, and the climbing frame mechanism 6 includes a pair of first ladder legs 61 arranged at the lower end of the lifting plate 3, a pair of second ladder legs 62 arranged on the supporting chassis 1 and corresponding to the first ladder legs 61, and ladder steps 63 arranged between the two first ladder legs 61 and the two second ladder legs 62, and the ladder steps 63 between the first ladder legs 61 and the ladder steps 63 between the second ladder legs 62 are not on the same vertical plane to avoid interference between the two affecting the relative sliding between the first ladder legs 61 and the second ladder legs 62. The second ladder leg 61 is slidably arranged in the first ladder leg 61, and an opening for sliding the ladder step 63 is provided on a side close to the first ladder leg 61. A passage opening 64 for passing personnel is provided on the lifting plate 3 corresponding to the first ladder leg 61. When the scissors lifting mechanism 2 drives the lifting plate 3 to rise and fall, the first ladder leg 61 and the second ladder leg 62 slide relative to each other, maintaining the connection between the supporting chassis 1 and the lifting plate 3 at all times, so that the operator can easily reach the lifting plate 3 in any state of the lifting equipment, so as to conveniently operate the construction equipment installed on the lifting plate 3 during construction.

[0025] Based on the above technical solution, when it is necessary to install a frame structure or electromechanical equipment during construction under the tunnel, the lifting equipment is moved to the construction site in conjunction with the wheels 11, and the equipment required for construction is installed on the lifting plate 3 as needed. After the installation is completed, the lifting plate 3 can be lifted to a suitable height for construction in conjunction with the scissors lifting mechanism 2. At this time, the operator can directly climb onto the lifting plate 3 through the climbing frame mechanism 6 to operate. There is no need to frequently lift the equipment so that personnel can reach the lifting plate 3, and there is no need for a dedicated person to stay on the lifting plate 3, which reduces the risk and saves manpower consumption, making construction easier.

[0026] In this technical solution, if Figure 1-3As shown, the scissor lift mechanism 2 includes a bidirectional stud 21 rotatably mounted on the supporting chassis 1, a driving motor 211 for driving the bidirectional stud 21 to rotate, a slide 22 symmetrically arranged on both sides of the bidirectional stud 21 and threadedly connected thereto, and a plurality of end-to-end connected and hinged linkage rods 23 arranged on both sides of the slide 22, wherein one end of the linkage rod 23 located at the uppermost side and the lowermost side is rotatably connected to the lifting plate 3 and the slide 22, respectively. When the scissor lift mechanism 2 is in operation, the bidirectional stud 21 is driven to rotate by the driving motor 211, and the slide 22 is driven to slide inward or outward synchronously in cooperation with the threads in opposite spiral directions on both sides of the bidirectional motor, and the lifting plate 3 is lifted or lowered in cooperation with the mutually hinged linkage rods 23, thereby ensuring the smooth lifting of the lifting plate 3.

[0027] In this technical solution, if Figure 1-3 As shown, the connecting rods 23 are provided with rotating pins at the intersection, and the rotating pins at the same level on both sides are fixedly connected with reinforcing rods 24. On the one hand, the reinforcing rods 24 keep the movement of the connecting rods 23 on both sides consistent, and on the other hand, better support is provided for the connecting rods 23 on both sides, thereby improving the strength and stability of the scissor lift mechanism 2.

[0028] In this technical solution, if Figure 1-3 As shown, the supporting chassis 1 is provided with a plurality of slide bars 221 parallel to the bidirectional studs 21, and the slide bars 221 penetrate the slide seat 22 and are slidably connected thereto, thereby improving the sliding stability of the slide seat 22 and ensuring the balance of the scissor lift mechanism 2 during lifting and lowering.

[0029] In this technical solution, if Figure 1-3 As shown, a fixing seat 4 is provided in the middle of the supporting chassis 1, and a plurality of telescopic lifting rods 5 are connected between the fixing seat 4 and the lifting plate 3. The telescopic lifting rods 5 are electric struts or hydraulic rods, which further improve the stability of the lifting plate 3 when it is lifted. Through the design of the electric struts, on the one hand, when lifting heavier equipment, it can assist the scissor lift mechanism 2 to lift and improve the lifting capacity of the lifting equipment. On the other hand, it also assists the scissor lift mechanism 2 to lock the height, ensuring that the lifting plate 3 can stably maintain the height and ensure the stability of the lifting equipment.

[0030] In this technical solution, if Figure 1-3 As shown, a protective fence 31 is detachably installed above the lifting plate 3. When construction equipment needs to be installed, the protective fence 31 can be removed to facilitate the installation of the equipment. When the operator needs to be lifted to a suitable height for construction, the protective fence 31 can be installed to ensure the safety of the construction personnel.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting device for underpass construction, characterized in that: It comprises a supporting chassis (1), a plurality of wheels (11) are arranged on both sides of the supporting chassis (1), a lifting plate (3) is arranged on the supporting chassis (1), and a scissor lift mechanism (2) is arranged on the supporting chassis (1) for driving the lifting plate (3) to rise and fall; A climbing frame mechanism (6) is provided on one side of the lifting plate (3), and the climbing frame mechanism (6) comprises a pair of first ladder legs (61) arranged at the lower end of the lifting plate (3), a pair of second ladder legs (62) arranged on the supporting chassis (1) and corresponding to the first ladder legs (61), and a ladder step (63) arranged between the two first ladder legs (61) and the two second ladder legs (62), the second ladder leg (62) being slidably arranged in the first ladder leg (61), and an opening for sliding the ladder step (63) is provided on a side close to the first ladder leg (61), and a passage opening (64) for allowing personnel to pass is provided on the lifting plate (3) corresponding to the first ladder leg (61).

2. The lifting equipment for underpass construction according to claim 1 is characterized in that: The scissor lift mechanism (2) comprises a bidirectional stud (21) rotatably mounted on a supporting chassis (1), a driving motor (211) for driving the bidirectional stud (21) to rotate, a slide seat (22) symmetrically arranged on both sides of the bidirectional stud (21) and threadedly connected thereto, and a plurality of connecting rods (23) arranged on both sides of the slide seat (22) and connected end to end and hinged, wherein one end of the connecting rod (23) located at the uppermost side and the lowermost side is rotatably connected to the lifting plate (3) and the slide seat (22) respectively.

3. The lifting equipment for underpass construction according to claim 2 is characterized in that: The intersecting parts of the linking rods (23) are provided with rotating pins, and reinforcing rods (24) are fixedly connected between the rotating pins at the same level on both sides.

4. The lifting equipment for underpass construction according to claim 2 is characterized in that: The supporting chassis (1) is provided with a plurality of sliding rods (221) parallel to the bidirectional studs (21), and the sliding rods (221) penetrate the sliding seat (22) and are slidably connected thereto.

5. The lifting equipment for underpass construction according to claim 1 is characterized in that: A fixing seat (4) is provided in the middle of the supporting chassis (1), and a plurality of telescopic lifting rods (5) are connected between the fixing seat (4) and the lifting plate (3).

6. The lifting equipment for underpass construction according to claim 5 is characterized in that: The telescopic lifting rod (5) is an electric support rod.

7. The lifting equipment for underpass construction according to claim 1 is characterized in that: A protective fence (31) is detachably mounted above the lifting plate (3).

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