A scissor-type aerial work platform

Abstract

The present invention relates to a scissor-type aerial work platform, comprising a chassis mechanism, a scissor mechanism, and a main work platform mechanism arranged in sequence from bottom to top, a fence mechanism extending upward is fixedly connected to the four sides of the top of the chassis mechanism, a vertically arranged top column mechanism extending upward is fixed to the four corners of the main work platform mechanism, an auxiliary work platform mechanism extending upward is fixed inside the main work platform mechanism, the volume of the auxiliary work platform mechanism is smaller than the volume of the main work platform mechanism, and the top of the auxiliary work platform mechanism is higher than the top of the main work platform mechanism. The present invention has a simple structure, and by adding a fence mechanism, a top column mechanism, and an auxiliary work platform mechanism to the existing design, the auxiliary work platform mechanism can be lifted into a narrow space for operation, providing a safe working environment, reducing the shaking of the platform, and further expanding the scope of use on the basis of ensuring personal safety.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting machinery, and in particular relates to a scissor-type aerial work platform. Background Art

[0002] Scissor-type aerial work platforms are widely used special equipment for aerial work. With the development of science and technology in modern society, scissor-type aerial work platforms have been popularized in every corner of social life and are increasingly widely used. Whether it is construction, civil engineering or people's daily life, they are inseparable from scissor-type aerial work platforms. However, there are some safety hazards when the scissor-type aerial work platforms in the industry are used in narrow spaces: if the operator needs to enter a narrow space such as the ceiling of a suspended ceiling, it is difficult to enter after the platform is raised due to its large size, and it is very dangerous to stand on the railing of the platform. When the operator walks back and forth on the platform, the body of the platform will sway left and right, which will make the operator feel scared and unable to concentrate on the work, affecting work efficiency; in addition, there is no protective fence around the scissor rods, and it is easy for hands or other objects to mistakenly enter the gap between the scissor rods. If the hydraulic system suddenly generates pressure or suddenly stops providing pressure, it will cause the platform to rise or fall suddenly, which is prone to accidents. Summary of the invention

[0003] The purpose of the present invention is to provide a scissor-type aerial work platform to reduce the potential safety hazards of the scissor-type aerial work platform in the prior art when performing operations in a narrow space.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A scissor-type aerial work platform is provided, comprising a chassis mechanism, a scissor mechanism, and a main work platform mechanism which are arranged in sequence from bottom to top, wherein the top of the chassis mechanism is fixedly connected with a fence mechanism extending upward all around, the four corners of the main work platform mechanism are fixed with vertically arranged top column mechanisms extending upward, an auxiliary work platform mechanism extending upward is fixed inside the main work platform mechanism, the volume of the auxiliary work platform mechanism is smaller than that of the main work platform mechanism, and the top of the auxiliary work platform mechanism is higher than the top of the main work platform mechanism.

[0006] The fence mechanism includes a pair of first fences arranged in parallel and a pair of second fences arranged in parallel. The second fences are fixedly connected between the two ends of the two first fences, and the top ends of the first fences are higher than the top ends of the second fences.

[0007] The pillar support mechanism includes a lower fixed rod, a spring latch and an upper fixed rod, wherein the lower fixed rod and the upper fixed rod are both hollow structures, the upper fixed rod is detachably connected to the lower fixed rod via a spring latch, the top end of the upper fixed rod is detachably connected to a fine-tuning rod that can move up and down relative to the upper fixed rod, and the top end of the fine-tuning rod is fixedly connected to a universal base foot.

[0008] The auxiliary working platform mechanism includes a cubic frame surrounded by multiple horizontal railings, longitudinal railings and vertical railings, the bottom end of the cubic frame is fixedly connected to a base plate, wherein a movable plate is hinged between the lower ends of two vertical railings, and a surround is fixedly connected between the lower ends of the remaining vertical railings, the bottom ends of the movable plate and the surround are both in contact with the top surface of the base plate, and multiple slots are fixed in the middle and bottom ends of the vertical railings, and the auxiliary working platform mechanism is fixed to the main working platform mechanism through the slots.

[0009] A first positioning hole is formed at the upper end of the lower fixing rod, and a plurality of second positioning holes evenly spaced along the length direction of the upper fixing rod are formed. The spring latch passes through the first positioning hole and the second positioning hole in sequence to install the upper fixing rod in the lower fixing rod.

[0010] A plurality of transverse rods are fixedly connected between the top and bottom ends of the main working platform mechanism, and the bottom end of the auxiliary working platform mechanism is fixed to the transverse rods via a slot, and threaded holes are provided on the slot and the transverse rods matched therewith, and the slot fixes the bottom end of the auxiliary working platform mechanism to the transverse rods via bolts passing through the threaded holes.

[0011] The vertical railing and the movable plate are hingedly connected via hinges.

[0012] A fixing bracket is fixedly connected between the lower ends of the vertical railings, and the four corners of the bottom plate are fixedly connected to the fixing bracket.

[0013] A ladder is fixedly connected to the chassis mechanism on the same side as the second guardrail.

[0014] Foldable auxiliary legs are fixedly connected to the four corners of the chassis mechanism.

[0015] The beneficial effects of the present invention are as follows: (1) The structure is simple. By adding a fence mechanism, a top column mechanism and an auxiliary work platform mechanism to the existing design, the auxiliary work platform mechanism can be lifted into a narrow space for operation, thereby providing a safe operating environment, reducing the shaking of the platform, and further expanding the scope of use on the basis of ensuring personal safety; (2) The fence mechanism is surrounded by a pair of parallel first railings and a pair of parallel second railings, and the top of the first railing is higher than the top of the second railing, which not only ensures safety but also provides convenience for workers to enter the work platform from the side of the second railing; (3) A fine-tuning rod is provided on the top column mechanism. After adjusting the height of the upper fixed rod by adjusting the spring latch, the height of the fine-tuning rod can be adjusted to make the height of the upper fixed rod fixed on the top of the fine-tuning rod higher. The universal foot at the end can be pressed tightly against the building below the working area to reduce the shaking of the platform; (4) A movable plate is hinged between the lower ends of the two vertical railings in the auxiliary working platform mechanism, and a guard plate is fixedly connected between the lower ends of the other vertical railings. The bottom ends of the movable plate and the guard plate are in contact with the top surface of the bottom plate. The movable plate is provided to facilitate the workers to enter the auxiliary working platform mechanism, and the guard plate further ensures the personal safety of the workers; (5) A ladder is fixedly connected to the chassis mechanism on the same side of the second guard plate, and the workers can enter and exit the main working platform mechanism from the top of the ladder, which is convenient for going up and down; (6) Foldable auxiliary legs are fixedly connected to the four corners of the chassis mechanism. When the side of the chassis mechanism is subjected to heavy loads, the auxiliary legs can be opened to ensure the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention;

[0017] Figure 2 It is a stereogram of the present invention in working state;

[0018] Figure 3 It is a three-dimensional diagram of the fence mechanism;

[0019] Figure 4 It is a three-dimensional diagram of the top pillar mechanism;

[0020] Figure 5 It is a three-dimensional diagram of the auxiliary working platform mechanism.

[0021] Figure numerals: 1-chassis mechanism, 2-scissor mechanism, 3-main working platform mechanism, 4-fence mechanism, 5-top column mechanism, 6-auxiliary working platform mechanism, 10-frame, 11-wheel, 12-slide, 13-ladder, 14-auxiliary outrigger, 20-X-type scissor arm, 21-lifting hydraulic cylinder, 22-inner scissors, 23-outer scissors, 24-hinge seat, 25-movable slider, 30-fixed platform, 31-platform railing, 32-protective door, 33-transverse rod, 40-first railing, 41-second railing, 42-fixed plate, 43-threaded hole, 50-lower fixed rod, 51-spring latch, 52-upper fixed rod, 53-first positioning hole, 54-second positioning hole, 55—fine-tuning rod, 56—universal foot, 57—fixing block, 58—mounting hole, 60—transverse railing, 61—longitudinal railing, 62—vertical railing, 63—cube frame, 64—bottom plate, 65—fixing bracket, 66—hinge, 67—movable plate, 68—enclosure, 69—slot. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and beneficial effects of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2 As shown, the scissor-type aerial work platform of the present invention comprises a chassis mechanism 1, a scissor mechanism 2, and a main work platform mechanism 3 which are arranged in sequence from bottom to top, the top of the chassis mechanism 1 is fixedly connected with a fence mechanism 4 extending upward all around, the four corners of the main work platform mechanism 3 are fixed with a vertically arranged top column mechanism 5 extending upward, an auxiliary work platform mechanism 6 extending upward is fixed inside the main work platform mechanism 3, the volume of the auxiliary work platform mechanism 6 is smaller than the volume of the main work platform mechanism 3, and the top of the auxiliary work platform mechanism 6 is higher than the top of the main work platform mechanism 3.

[0024] The chassis mechanism 1 mainly includes a frame 10 and wheels 11 . The chassis mechanism 1 also has a hydraulic system and an electric control system. The hydraulic system provides power for the walking, braking, steering and lifting of the working platform; the electric control system controls the walking of the wheels 11 .

[0025] The scissor mechanism 2 mainly includes two front and rear X-shaped scissor arms 20 and two lifting hydraulic cylinders 21. The front and rear X-shaped scissor arms 20 are connected by a rotating shaft. Each X-shaped scissor arm 20 is composed of a multi-stage inner scissor fork 22 and a multi-stage outer scissor fork 23 that are staggered. The inner scissor fork 22 and the outer scissor fork 23 are connected by hinge bolts and hinge nuts. The upper and lower ends of the inner scissor fork 22 are fixedly connected with a hinge seat 24, and the upper and lower ends of the outer scissor fork 23 are hinged with a movable slider 25.

[0026] The main working platform mechanism 3 mainly includes a fixed platform 30, a platform railing 31, and a protective door 32. Corresponding slideways 12 are provided on the top surfaces of the fixed platform 30 and the above-mentioned frame 10. The above-mentioned two hinge seats 24 are respectively hinged to the fixed platform 30 and the frame 10, and the above-mentioned two movable sliders 25 are respectively arranged in the slideways 12 of the fixed platform 30 and the frame 10.

[0027] The chassis mechanism 1, the scissor mechanism 2, and the main working platform mechanism 3 are of conventional design, and their specific structures and connection relationships are not described in detail here.

[0028] like Figure 2 and Figure 3 As shown, the fence mechanism 4 includes a pair of first fences 40 arranged in parallel and a pair of second fences 41 arranged in parallel. The second fence 41 is fixedly connected between the two ends of the two first fences 40. The top of the first fence 40 is higher than the top of the second fence 41. The four corners of the fence mechanism 4 are fixedly connected to the bottom with a downwardly extending fixing plate 42. The fixing plate 42 is provided with a threaded hole 43. The fixing plate 42 fixes the fence mechanism 4 to the chassis mechanism 1 by bolts passing through the threaded holes 43. Figure 1 As shown, when the scissor mechanism 2 is in a compressed state, the top of the second guardrail 41 is higher than the top of the scissor mechanism 2, and the first guardrail 40 and the second guardrail 41 can completely surround the scissor mechanism 2 to prevent people from entering by mistake and avoid safety accidents caused when the scissor mechanism 2 rises suddenly. A ladder 13 is also fixedly connected to the chassis mechanism 1 on the same side as the second guardrail 41, which not only ensures safety but also provides convenience for workers to enter the working platform from the side of the second guardrail 41.

[0029] like Figure 2 and Figure 4As shown, the supporting column mechanism 5 includes a lower fixing rod 50, a spring latch 51 and an upper fixing rod 52. The lower fixing rod 50 and the upper fixing rod 52 are both hollow structures. A first positioning hole 53 is opened at the upper end of the lower fixing rod 50, and a plurality of second positioning holes 54 evenly spaced are opened on the upper fixing rod 52 along its length direction. The spring latch 51 passes through the first positioning hole 53 and the second positioning hole 54 in sequence to install the upper fixing rod 52 in the lower fixing rod 50. When it is necessary to adjust the height of the upper fixing rod 52, the spring latch 51 is pulled outward to pull the insertion rod of the spring latch 51 out of the second positioning hole 54. At this time, the spring in the spring latch 51 is in a compressed state, and then the upper fixing rod 52 is moved up and down. After the height of the upper fixing rod 52 is preliminarily determined, the second positioning hole 54 on the upper fixing rod 52 is matched with the first positioning hole 53, and the spring in the spring latch 51 pushes the insertion rod of the spring latch 51 into the second positioning hole 54 again under the action of its own rebound force. The top of the upper fixed rod 52 is detachably connected to a fine-adjustment rod 55 that can move up and down relative to the upper fixed rod 52. The top of the fine-adjustment rod 55 is fixedly connected to a universal foot 56, which plays a supporting role. A fixing block 57 is fixedly connected to the side of the bottom of the lower fixed rod 50. The fixing block 57 is provided with a mounting hole 58. The fixing block 57 fixes the top column mechanism 5 to the four corners of the main working platform mechanism 3 through the mounting hole 58. After adjusting the height of the upper fixed rod 52 by adjusting the spring latch 51, the height of the fine-adjustment rod 55 is adjusted again, so that the universal foot 56 fixed to the top of the fine-adjustment rod 55 can be more closely matched with the building below the working area, reducing the shaking of the platform.

[0030] like Figure 5As shown, the auxiliary work platform mechanism 6 includes a cubic frame 63 surrounded by a plurality of transverse railings 60, a longitudinal railing 61 and a vertical railing 62. The top of the cubic frame 63 includes a pair of mutually parallel transverse railings 60 and a pair of mutually parallel vertical railings 62. The vertical railings 62 are fixed between the two ends of the transverse railings 60. The bottom end of the cubic frame 63 is fixedly connected to a base plate 64. A fixed bracket 65 is fixedly connected between the lower ends of the vertical railings 62. The four corners of the base plate 64 are fixedly connected to the fixed bracket 65. A movable plate 67 is hinged between the lower ends of two vertical railings 62 through hinges 66. The movable plate 67 is equivalent to the safety door of the auxiliary work platform mechanism 6. A panel 68 is fixedly connected between the lower ends of the remaining vertical railings 62. The bottom ends of the movable plate 67 and the bottom ends of the panel 68 are in contact with the top surface of the bottom plate 64. A plurality of slots 69 are fixedly provided in the middle and bottom ends of the vertical railings 62. A plurality of transverse rods 33 in the same horizontal plane are fixedly connected between the top and bottom ends of the main work platform mechanism 3. The bottom end of the auxiliary work platform mechanism 6 is fixed to the transverse rod 33 through the slot 69. The middle part of the auxiliary work platform mechanism 6 is fixed to the platform railing 31 of the main work platform through the slot 69. Threaded holes 43 are provided on the slot 69 and the transverse rod 33 and platform railing 31 matched therewith. The slot 69 fixes the auxiliary work platform mechanism 6 to the transverse rod 33 and the platform railing 31 through bolts passing through the threaded holes 43.

[0031] Foldable auxiliary legs 14 are fixedly connected to the four corners of the chassis mechanism 1. When the side of the chassis mechanism 1 is subjected to a heavy load, the auxiliary legs 14 can be opened to ensure the stability of the device.

[0032] The working principle of the present invention is as follows: the chassis mechanism 1, the scissor mechanism 2 and the main working platform mechanism 3 are installed in order from bottom to top, the fence mechanism 4 is fixed around the top of the chassis mechanism 1, the top column mechanism 5 is fixed at the four corners of the main working platform mechanism 3, and the auxiliary working platform mechanism 6 is fixed in the main working platform mechanism 3. When it is necessary to enter a narrow place such as the ceiling of the suspended ceiling to perform operations, the auxiliary working platform mechanism 6 is raised into the narrow working space by starting the scissor mechanism 2, and the universal foot 56 is tightened against the building below the working area such as the ceiling by adjusting the upper fixing rod 52 and the fine-tuning rod 55, so as to reduce the shaking of the auxiliary working platform. When the side of the chassis mechanism 1 is subjected to a heavy load, the auxiliary legs 14 can be opened to ensure the stability of the device. The above technical scheme increases the working height of the scissor-type aerial work platform and enables it to enter a narrow space, which not only improves the safety of the operation but also expands the scope of use of the scissor-type aerial work platform.

[0033] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A scissor-type aerial work platform, comprising a chassis mechanism, a scissor mechanism, and a main work platform mechanism arranged in sequence from bottom to top, Features: The top of the chassis mechanism is fixedly connected with an upwardly extending fence mechanism on all sides, the four corners of the main working platform mechanism are fixed with an upwardly extending vertical pillar mechanism, and an upwardly extending auxiliary working platform mechanism is fixed inside the main working platform mechanism, the volume of the auxiliary working platform mechanism is smaller than the volume of the main working platform mechanism, and the top of the auxiliary working platform mechanism is higher than the top of the main working platform mechanism; The fence mechanism comprises a pair of first fences arranged in parallel and a pair of second fences arranged in parallel, wherein the second fences are fixedly connected between the two ends of the two first fences, and the top of the first fence is higher than the top of the second fence; The pillar support mechanism comprises a lower fixing rod, a spring latch and an upper fixing rod, wherein both the lower fixing rod and the upper fixing rod are hollow structures, the upper fixing rod is detachably connected to the lower fixing rod through the spring latch, the top end of the upper fixing rod is detachably connected to a fine-tuning rod that can move up and down relative to the upper fixing rod, and the top end of the fine-tuning rod is fixedly connected to a universal foot; The auxiliary work platform mechanism comprises a cubic frame surrounded by a plurality of transverse railings, longitudinal railings and vertical railings, the bottom end of the cubic frame is fixedly connected to a bottom plate, wherein a movable plate is hinged between the lower ends of two vertical railings, and a panel is fixedly connected between the lower ends of the remaining vertical railings, the bottom ends of the movable plate and the bottom ends of the panel are both in contact with the top surface of the bottom plate, the middle and bottom ends of the vertical railings are fixed with a plurality of slots, and the auxiliary work platform mechanism is fixed to the main work platform mechanism through the slots; A first positioning hole is formed at the upper end of the lower fixing rod, and a plurality of second positioning holes evenly spaced are formed on the upper fixing rod along its length direction, and the spring latch passes through the first positioning hole and the second positioning hole in sequence to install the upper fixing rod in the lower fixing rod; A plurality of transverse rods are fixedly connected between the top and bottom ends of the main working platform mechanism, and the bottom end of the auxiliary working platform mechanism is fixed to the transverse rods via a slot, and threaded holes are provided on the slot and the transverse rods matched therewith, and the slot fixes the bottom end of the auxiliary working platform mechanism to the transverse rods via bolts passing through the threaded holes.

2. The scissor-type aerial work platform according to claim 1, Features: The vertical railing and the movable plate are hingedly connected via hinges.

3. The scissor-type aerial work platform according to claim 1, Features: A fixing bracket is fixedly connected between the lower ends of the vertical railings, and the four corners of the bottom plate are fixedly connected to the fixing bracket.

4. The scissor-type aerial work platform according to any one of claims 1 to 3, Features: A ladder is fixedly connected to the chassis mechanism on the same side as the second guardrail.

5. The scissor-type aerial work platform according to any one of claims 1 to 3, Features: Foldable auxiliary legs are fixedly connected to the four corners of the chassis mechanism.

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