CN204938840U - A kind of scissor aerial work platform - Google Patents

Abstract

The utility model relates to a scissor-type high-altitude work platform, which includes a driving chassis and a lifting device. The driving chassis includes a chassis, a driving device, a pothole protection mechanism and a leg structure. Outrigger mounting plate, support outer tube, support inner tube and support feet, the lifting device includes a scissor lift structure and a working platform, the scissor lift structure includes an upper scissor unit, a lower scissor unit and a lifting cylinder, the scissors The fork-type lifting structure is provided with a wiring pipeline structure, and the working platform includes a platform fixed bottom plate, a railing frame and a railing door. The utility model provides a stable lifting, flexible driving, easy operation, high efficiency, high safety performance and low cost. Scissor aerial work platform.

Description

A scissor type aerial work platform

technical field

The utility model relates to a scissor type aerial work platform.

Background technique

Aerial work platform is a product that serves mobile high-altitude operations such as aerial work, equipment installation, and maintenance in various industries. The related products of aerial work platforms mainly include: scissor-type aerial work platforms, vehicle-mounted aerial work platforms, articulating-arm aerial work platforms, self-propelled aerial work platforms, aluminum alloy aerial work platforms, and cylinder-type aerial work platforms.

The scissor lifting device of the aerial work platform is assembled by stacking the scissor tubes that are intersected and hinged one by one. The track slides back and forth on the chassis to match the up and down of the scissor tube. Due to the increasing working height of the existing aerial work platforms, the weight of the lifting device is also increasing, resulting in the lifting cylinder needing to withstand greater working pressure. In order to ensure the stability of the work, it is necessary to set up an auxiliary lifting cylinder. Auxiliary support leads to higher equipment costs. The control button on the working platform of the scissor aerial work platform is connected to the control module on the bottom chassis through the control line. In the existing installation structure, the control line is not protected by a hard shell, and the control line is easily damaged.

During the operation of the aerial work platform, the platform operation requires high mobile flexibility. The steering structure of the existing driving wheel has poor stability and synchronization during the steering process, and the rotation angle is limited, which affects the user experience.

The existing structure of the aerial work platform usually installs support plates on both sides of the base to achieve the stability of high-altitude operations, which can play a supporting role in the process of tire height imbalance. It is a fixed installation structure, and the support plate will have a certain negative impact on the walking performance of the tire.

In order to ensure the stability of the platform when working at heights, it is necessary to provide more stable support for the work platform through the outrigger structure. However, the installation of the existing outrigger structure is relatively complicated, resulting in low assembly efficiency and resulting in maintenance. The process of removing the outriggers is more complicated.

In order to ensure the safety of the operators on the working platform, a railing door needs to be set at the entrance of the working platform. The opening of the existing railing door lock is relatively complicated, which causes great inconvenience when the operator climbs the ladder to enter the working platform.

In order to improve the activity space on the work platform, the work platform usually includes a platform fixed base plate and a sliding base plate that can slide relatively, and the relative fixation between the sliding base plate and the platform fixed base plate is realized through the movable platform lock. The existing movable platform lock operation Complicated, some even need to plug and unplug the fixed pin, so the operation efficiency is low.

Contents of the invention

In order to solve the above technical problems, the purpose of this utility model is to provide a scissor type aerial work platform with stable lifting, flexible driving, simple operation, high efficiency, high safety performance and low cost.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A scissor-type aerial work platform, comprising a driving chassis and a lifting device, the driving chassis includes a chassis, a driving device, a pothole protection mechanism and a leg structure, and the driving device includes a left steering wheel, a right steering wheel, and a left wheel frame , right wheel frame, linkage frame, steering oil cylinder and steering bending plate, the left steering wheel and the right steering wheel are respectively rotated and installed on the left wheel frame and the right wheel frame, and the left steering wheel and the right steering wheel are respectively fixed on the left wheel frame The left drive motor and the right drive motor fixed on the right wheel frame realize the drive. The left wheel frame and the right wheel frame are installed on the chassis through the rotation of the wheel frame shaft. The axis of the wheel frame shaft is vertically arranged. It consists of two linkage frame connecting sections respectively fixed at both ends of the linkage frame main body. The steering cylinder is located between the two linkage frame connecting sections. The steering cylinder adopts a double-rod hydraulic cylinder. On the connecting section, one end of the two steering bends is respectively hinged on the left wheel frame and the right wheel frame, the other ends of the two steering bends are respectively hinged on the two ends of the main body of the linkage frame, the steering oil cylinder is fixed on the chassis, and the steering bend A section of depression is arranged on the side facing the wheel frame shaft; the pothole protection mechanism includes a left pothole plate, a right pothole plate, two first pothole connecting plates, two second pothole connecting plates, two A third pothole connecting plate, a fourth pothole connecting plate, two movable seats, two guide shafts, two limiting plates and two movable seat compression springs, wherein, the left pit plate, the right pit The perforated plates are respectively rotated and installed on the left and right sides of the bottom of the chassis. The two ends of the left perforated plate are respectively located at the front and rear ends of the bottom of the chassis. The straight slide is installed on the chassis, the two movable seats are respectively fixed on the two guide shafts, the two movable seat compression spring sleeves are respectively arranged on the two guide shafts and the upper and lower ends of the movable seat compression springs are respectively against the movable seat. The lower end and the chassis, thereby exerting an upward thrust on the movable seat through the movable seat compression spring, the upper end of the guide shaft is located below the lifting device of the working platform, and the two ends of the fourth pit connecting plate are respectively fixed on the two movable seats. The two movable seats are arranged left and right respectively, one end of the two first hole connecting plates is respectively hinged to the movable seat, the other ends of the two first hole connecting plates are respectively hinged to one end of the two second hole connecting plates, and the two second hole connecting plates are respectively hinged. The middle part of the second hole connecting plate is hinged on the chassis, the other ends of the two second hole connecting plates are respectively hinged to one end of the two third hole connecting plates, and the other ends of the two third hole connecting plates are hinged on the left On the pit plate and the right pit plate, one end of the limiting plate and one end of the third pit connecting plate are coaxially hinged on the second pit connecting plate, and the other end of one of the limiting plates and one of the third pits The other end of the hole connecting plate is coaxially hinged on the left hole plate, the other end of the other limiting plate and the other end of the third hole connecting plate are coaxially hinged on the right hole plate, the limit plate One end is provided with a limit column for abutting against the second hole connecting plate to limit the rotation range of the left hole plate and the right hole plate; the outrigger structure includes a frame plate, outrigger seat plate, and outrigger mounting plate , supporting the outer tube, supporting the inner tube and supporting feet, the frame plate is fixed on the chassis, and the supporting The leg seat plate is fixed on the frame plate, and the top and bottom of the outrigger seat plate are respectively provided with an upper card slot for snapping in the upper card shaft and a lower card slot for clipping in the lower card shaft, and the outrigger mounting plate is fixed on Support the two sides of the outer tube, fix the upper clamping shaft and the lower clamping shaft on the leg mounting plate, fix the supporting oil cylinder inside the supporting outer tube, fix the telescopic rod of the supporting oil cylinder on the supporting inner tube, and install the supporting foot at the lower end of the supporting inner tube; The lifting device includes a scissor-type lifting structure and a working platform. The scissor-type lifting structure includes an upper scissor unit, a lower scissor unit and a lifting cylinder. The lower scissor unit is hinged sequentially from bottom to top, wherein the lower scissor unit includes two first outer scissor tubes, two first inner scissor tubes arranged between the two first outer scissor tubes, and a The lower scissor shaft connecting the first outer scissor tube and the first inner scissor tube, the lower end, the middle part and the upper end of the first outer scissor tube are provided with lower scissor shaft fixing holes for insertion of the lower scissor shaft. The upper end, the middle part and the lower end of an inner scissor tube are all provided with a first bearing installation hole, and the first bearing installation hole is equipped with a first bearing. In the same lower scissor unit, the lower scissor shaft hinge located in the middle of the lifting device is sequentially Pass through the lower scissor shaft fixing hole in the middle of one of the first outer scissor tubes, the inner hole of the first bearing in the middle of one of the first inner scissor tubes, the inner hole of the first bearing in the middle of the other first inner scissor tube The inner hole of the first bearing and the lower scissor shaft fixing hole in the middle of the other first outer scissor tube, among the two adjacent lower scissor units up and down, the lower scissor shaft located in front of the lifting device passes through the The fixing hole of the lower scissor shaft at the lower end of one of the first outer scissor tubes of the upper lower scissor unit, and the inner hole of the first bearing at the upper end of one of the first inner scissor tubes of the lower lower scissor unit , the inner hole of the first bearing at the upper end of the other first inner scissor tube of the lower scissor unit located below and the lower scissor shaft at the lower end of the other first outer scissor tube of the upper lower scissor unit The fixing hole, the lower scissor shaft at the rear of the lifting device passes through the lower scissor shaft fixing hole at the lower end of one of the first outer scissor tubes of the lower lower scissor unit in sequence, and the lower scissor shaft at the upper end of the lower scissor unit The inner hole of the first bearing at the upper end of one of the first inner scissors tubes, the inner hole of the first bearing at the upper end of the other first inner scissors tube of the upper lower scissors unit, and the upper lower scissors The lower scissor shaft fixing hole at the lower end of the other first outer scissor tube of the unit, the lower scissor shaft is fixed with the first bearing, the lower scissor shaft is pierced with the first screw, and the two ends of the first screw are sleeved with the second A locking plate, the first locking plate is compressed and fixed on the outer wall of the first outer scissors tube by the first nut installed on the first screw rod, and the first inner scissors tube of the lower scissors unit located at the bottom is hinged on the On the chassis, two rails are arranged on the chassis, and the two first outer scissor tubes of the lower scissor unit located at the bottom are all rotatably equipped with rail wheels, and the two rail wheels are arranged on the two rails, located at the bottom The two first inner scissor tubes of the upper lower scissor unit are fixed with oil cylinder mounts, the cylinder body of the lifting cylinder is hinged on the oil cylinder mounts, and the upper scissor unit includes two second outer scissor tubes, one set on the two second outer scissors The first inner scissor pipe between the pipes and the upper scissor shaft used to connect the second outer scissor pipe and the second inner scissor pipe. The telescopic rod of the lifting cylinder is hinged on the first On the first inner scissor tube, the lower end, middle part and upper end of the second outer scissor tube are provided with upper scissor shaft fixing holes for the upper scissor shaft to be inserted into, and the upper end, middle part and lower end of the second inner scissor tube are provided with There is a second bearing installation hole, and the second bearing is installed in the second bearing installation hole. In the same upper scissors unit, the upper scissors shaft hinge located in the middle of the lifting device passes through one of the middle parts of the second outer scissors tube in turn. The fixing hole of the upper scissor shaft, the inner hole of the second bearing on the middle part of the second inner scissor tube and the fixing hole of the upper scissor shaft in the middle part of the other second outer scissor tube, and the upper and lower adjacent two upper scissors In the unit, the upper scissor shaft located in front of the lifting device sequentially passes through the upper scissor shaft fixing hole at the lower end of one of the second outer scissor tubes of the upper upper scissor unit, and the lower end of the upper scissor unit located below. The inner hole of the second bearing at the upper end of the second inner scissor tube and the upper scissor shaft fixing hole at the lower end of the other second outer scissor tube of the upper upper scissor unit, and the upper scissor located at the rear of the lifting device The shaft passes through the upper scissor shaft fixing hole at the lower end of one of the second outer scissor tubes of the lower upper scissor unit in turn, and the second bearing at the upper end of the second inner scissor tube of the upper upper scissor unit. The inner hole and the upper scissor shaft fixing hole at the lower end of the other second outer scissor tube of the upper upper scissor unit, the upper scissor shaft is fixed with the second bearing, the upper scissor shaft is passed through the second screw rod, the second The two ends of the two screw rods are sleeved with a second locking plate, and the second locking plate is compressed and fixed on the outer wall of the second outer scissor tube through the second nut installed on the second screw rod, and the upper scissor unit located at the top The second inner scissor tube is hinged on the bottom of the working platform. There are two track grooves on the bottom of the working platform. The second outer scissor tube of the upper scissor unit at the top is rotatably equipped with track groove rollers. The two track groove rollers are arranged in the two track grooves, and the lower ends of the two second outer scissor tubes of the lowermost upper scissor unit are arranged on the two first outer scissors of the uppermost lower scissor unit Between the upper ends of the tubes, the lower ends of the two second outer scissor tubes of the lowermost upper scissor unit and the upper ends of the two first outer scissor tubes of the uppermost lower scissor unit pass through the front position of the lifting device The middle scissor shaft realizes coaxial hinge, and the lower end of the second inner scissor tube of the uppermost upper scissor unit is set at the upper end between the two first inner scissor tubes of the uppermost lower scissor unit , the lower end of the second inner scissor tube of the lowermost upper scissor unit and the upper end between the two first inner scissor tubes of the uppermost lower scissor unit pass through the middle scissors located behind the lifting device The axis is straight and coaxially hinged; the scissor lift structure is provided with a wiring pipeline structure, and the wiring pipeline structure includes wiring hard pipes, wiring hoses and control lines for controlling the work of the working platform, and the wiring hard pipes are fixed On the scissor lift structure, the adjacent wiring hard pipes are connected by wiring hard pipes, and the wiring pipeline composed of wiring hard pipes and wiring hoses is set from the chassis to the working platform. The wiring is set in the wiring pipeline composed of wiring hard pipes and wiring hoses. The hard wiring pipes are fixed on the scissor lift structure through the hard pipe fixing frame. The hard pipe fixing frame includes an Ω-shaped fixing piece and a mounting piece. , the wiring hard tube passes through the Ω-shaped fixing piece, and the two ends of the Ω-shaped fixing piece are fixed on the mounting piece by screws, so that the wiring hard tube is fixed on the hard tube fixing frame, and the mounting piece is fixed on the scissors On the fork-type lifting structure; the working platform includes a platform fixed base plate, a railing frame and a railing door, and one side of the railing door is rotated and installed on the railing frame so that the railing door can rotate around the axis in the vertical direction, and the railing door Locking on the railing frame is achieved through a railing lock. The railing lock includes a door locking rod, a movable buckle and a door locking buckle. One end of the door locking rod is hinged on one side of the railing door, and the other side of the railing door is fixed with a movable buckle And the door lock, the activity space that limits the range of movement of the door lock bar is provided between the activity button and the railing door, and the door lock bar passes through the activity space, and the door lock is fixed on the railing frame, and the door lock is located on the door lock bar. Below the other end of the door, a lock groove with an upper opening is arranged on the door lock; a sliding bottom plate is slidably installed on the fixed bottom plate of the platform, and two platform chutes are arranged on the left and right sides of the fixed bottom plate of the platform. The left side and the right side of the bottom plate are provided with two platform rollers, and the platform rollers are arranged in the platform chute, and railing frames are installed on the fixed bottom plate and the sliding bottom plate of the platform, and the railing frame on the sliding bottom plate and the fixed bottom plate of the platform The railing frame is connected through the movable platform lock. The movable platform lock includes a fixed swing rod, a first platform lock plate and a second platform lock plate. The fixed swing rod is hinged on the railing frame on the sliding bottom plate. One end of the fixed swing rod is fixed with a The anti-off pressure plate, the first platform lock plate and the second platform lock plate are fixed on the railing frame on the fixed base plate of the platform one after the other, and the first platform lock plate and the second platform lock plate are all provided with lock plate grooves.

As a preferred solution: in a pair of upper and lower adjacent upper scissors units, the second outer scissors tube of the upper upper scissors unit is equipped with an inspection support rod, and one end of the inspection support rod is hinged on the second outer scissors On the fork tube, the other end of the inspection support rod is fixed with a fixed bayonet, and the second outer scissor tube of the upper scissor unit located above is fixed with a fixed bayonet for clamping the fixed bayonet. The second outer scissor tube The pin hole for inserting the fixing pin is provided on the maintenance support rod.

As a preferred solution: the end of the wiring hard pipe is provided with an external thread, the end of the wiring hose is fixed with a chuck, the chuck is fixed on the installation pipe, and the installation pipe is provided with an internal thread, so that the installation pipe is tightened and fixed At the end of the wiring tube.

As a preferred solution: the fourth pothole connecting plate is composed of the left section of the fourth pothole connecting plate, the right section of the fourth pothole connecting plate and the connecting section, and the two ends of the connecting section are respectively fixed on the left side of the fourth pothole connecting plate. Section, the fourth pothole connecting plate on the right section.

As a preferred solution: the fixed swing rod is L-shaped, the first platform lock plate and the second platform lock plate are vertically arranged, and the middle part of the fixed swing rod is hinged on the railing frame on the fixed bottom plate of the platform.

As a preferred solution: the support foot is installed on the support foot installation block through the rotation of the support foot shaft, the support foot installation block is installed on the lower end of the support inner tube through the rotation of the installation block shaft, and the axis of the support foot shaft and the axis of the installation block shaft are arranged horizontally and are perpendicular to each other, and the lower end of the supporting inner tube is provided with a supporting spring plate located above the mounting block of the supporting feet.

As a preferred solution: the main body of the linkage frame and the two connecting sections of the linkage frame form an integral structure.

The utility model adopts the above-mentioned structure, reduces the weight to be carried by the lifting hydraulic cylinder through the upper scissors unit with a narrower width, and ensures the stability of the support through the lower scissors unit with a wider width; The control line can be better protected in the wiring hard pipe; the steering oil cylinder of the utility model adopts a double-rod hydraulic cylinder which not only simplifies the linkage structure, but also improves the stability and synchronization of the steering process; the depression on the steering bending plate makes the steering The bent plate can be closer to the axle of the wheel frame, so that the angle limit of the steering can be increased, and the use performance can be enhanced.

The utility model also makes the loading and unloading of the supporting legs more convenient through the cooperation of the clamping shaft and the slot, and is convenient for maintenance; the pothole protection device is flexible in use and does not affect the normal driving of the vehicle, the activity space of the working platform is convenient to expand, and the railing door of the working platform is easy to open , and can effectively prevent accidental loosening, high safety.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a scissor-type aerial work platform according to an embodiment of the utility model.

Fig. 2 is a schematic view of the front structure of the scissor-type aerial work platform of the embodiment of the utility model.

Fig. 3 is a schematic view of the side structure of the scissor-type aerial work platform of the embodiment of the utility model.

Fig. 4 is a schematic diagram of the installation structure of the scissors unit in the embodiment of the present invention.

Fig. 5 is a schematic diagram of the installation structure of the lower scissors unit according to the embodiment of the present invention.

Fig. 6 is a schematic cross-sectional structure diagram of the lower scissors unit of the embodiment of the present invention.

Fig. 7 is a structural schematic diagram of the outrigger structure of the embodiment of the utility model.

Fig. 8 is a structural schematic diagram of another viewing angle of the outrigger structure of the embodiment of the utility model.

Fig. 9 is a schematic diagram of the front structure of the traveling device of the embodiment of the present invention in the state of going straight.

Fig. 10 is a three-dimensional structural schematic view of the traveling device of the embodiment of the present invention in a straight-ahead state.

Fig. 11 is a top view structural diagram of the traveling device of the embodiment of the present utility model in the state of going straight.

Fig. 12 is a schematic top view of the traveling device in the steering state of the embodiment of the utility model.

Fig. 13 is a three-dimensional structural schematic diagram of the pothole protection mechanism of the embodiment of the present utility model.

Fig. 14 is a schematic plan view of the pothole protection mechanism of the embodiment of the utility model.

Fig. 15 is a schematic diagram of the installation structure of the maintenance pole of the embodiment of the utility model.

Fig. 16 is a structural schematic diagram of the wiring pipeline structure of the embodiment of the present invention.

Fig. 17 is a schematic diagram of the installation structure of the wiring hose according to the embodiment of the present invention.

Fig. 18 is a schematic structural view of the hard tube fixing frame of the embodiment of the present invention.

Fig. 19 is a schematic structural view of the working platform of the embodiment of the present invention.

Fig. 20 is a schematic diagram of the installation structure of one end of the door lock lever according to the embodiment of the present invention.

Fig. 21 is a structural schematic diagram of the installation of the other end of the door lock lever according to the embodiment of the present invention.

Fig. 22 is a schematic diagram of the installation structure of the fixed pendulum in the embodiment of the utility model.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the utility model and the utility model is not limited to the following examples.

Referring to Figures 1-22, the scissor-type aerial work platform in this embodiment includes a driving chassis 1 and a lifting device 2, and the driving chassis 1 includes a chassis 11, a driving device 12, a pothole protection mechanism 13 and an outrigger structure 14, Described traveling device 12 comprises left steering wheel 121, right steering wheel 122, left wheel frame 123, right wheel frame 124, linkage frame 125, steering oil cylinder 126 and steering bending plate 127, and described left steering wheel 121, right steering wheel 122 respectively Rotation is installed on the left wheel frame 123, the right wheel frame 124, and the left steering wheel 121, the right steering wheel 122 are realized driving by the left drive motor that is fixed on the left wheel frame 123, the right drive motor that is fixed on the right wheel frame 124 respectively, and the left wheel Frame 123 and right wheel frame 124 are installed on the chassis 11 through wheel frame shaft 128 rotation, and the axis of wheel frame shaft 128 is vertically arranged, and linkage frame 125 is respectively fixed on the two linkages of linkage frame main body 1251 two ends by linkage frame main body 1251. The steering cylinder 126 is located between the two linkage frame connecting sections 1252. The steering cylinder 126 adopts a double-rod hydraulic cylinder. The two movable rods of the steering cylinder 126 are respectively connected to the two linkage frame connecting sections 1252. One end of each steering bend 127 is respectively hinged on the left wheel frame 123 and the right wheel frame 124, and the other ends of the two steering bends 127 are respectively hinged on the two ends of the linkage frame main body 1251, and the steering oil cylinder 126 is fixed on the chassis 11. A recess 1271 is provided on the side of the bent plate 127 facing the wheel frame shaft 128 . With this structure, the steering cylinder 126 drives the linkage frame 125 to move linearly, thereby driving the steering bend 127, so that the steering bend 127 pulls the left wheel frame 123 and the right wheel frame 124 to rotate to realize steering. In this structure, the steering oil cylinder 126 uses a double-rod hydraulic cylinder not only to simplify the linkage structure, but also to improve the stability and synchronization of the steering process; by setting the recess 1271 on the steering bend 127, the steering bend 127 can be closer to the wheel frame shaft 128, thereby The angle limit of the steering can be increased, and the use performance is enhanced. The main body 1251 of the linkage frame and the two connecting sections 1252 of the linkage frame form an integral structure.

The pothole protection mechanism 13 includes a left pothole plate 131, a right pothole plate 132, two first pothole connecting plates 133, two second pothole connecting plates 134, two third pothole connecting plates 135, A fourth hole connecting plate 136, two movable seats 1310, two guide shafts 137, two limiting plates 138 and two movable seat compression springs 139, wherein the left hole plate 131 and the right hole plate 132 are respectively rotated and mounted on the left and right sides of the bottom of the chassis 11. The two ends of the left hole plate 131 are respectively positioned at the front and rear ends of the bottom of the chassis 11, and the two ends of the right hole plate 132 are respectively positioned at the front and rear ends of the bottom of the chassis 11. Two guide shafts 137 are vertically slidably mounted on the chassis 11, two movable seats 1310 are respectively fixed on the two guide shafts 137, two movable seat stage clips 139 cover are respectively located on the two guide shafts 137 and the movable seat stage clips The upper and lower ends of 139 are respectively against the lower end of the movable seat 1310 and the chassis 11, thereby applying an upward thrust to the movable seat 1310 through the movable seat compression spring 139, and the upper end of the guide shaft 137 is located below the lifting device 2 of the working platform. The two ends of four pothole connecting plates 136 are respectively fixed on two movable seats 1310, and two movable seats 1310 are arranged left and right respectively, and one end of two first hole connecting plates 133 is respectively hinged movable seats 1310, two first pits The other end of hole connecting plate 133 is respectively hinged one end of two second pothole connecting plates 134, the middle part of two second pothole connecting plates 134 is hinged on the chassis 11, the other end of two second pothole connecting plates 134 Hinge one end of two 3rd pothole connecting plates 135 respectively, the other end of two 3rd pothole connecting plates 135 is hinged on the left pothole plate 131, the right pothole plate 132, one end of the limiting plate 138 and the third One end of the hole connecting plate 135 is coaxially hinged on the second hole connecting plate 134, and the other end of one of the limiting plates 138 and the other end of one of the third hole connecting plates 135 are coaxially hinged on the left hole plate 131, the other end of another limiting plate 138 and the other end of another third hole connecting plate 135 are coaxially hinged on the right hole plate 132, and one end of the limiting plate 138 is provided with a button for abutting against the second pit On the hole connecting plate 134 to limit the limit column 1381 of the rotation range of the left hole plate 131 and the right hole plate 132. With this structure, when the lifting device 2 is put down, the guide shaft 137 can be depressed, thereby driving the movable seat 1310 to move downward, and the first hole connecting plate 133 pulls the second hole connecting plate 134 to make the second hole The connecting plate 134 rotates in the forward direction around the hinge in the middle, and the other end of the second hole connecting plate 134 drives the third hole connecting plate 135, so that the third hole connecting plate 135 pulls the left hole plate 131 and the right hole plate 135. The plate 132 rotates in the forward direction, so that the left hole plate 131 and the right hole plate 132, which were originally vertically supported, rotate in the forward direction, thereby retracting to the contracted state. When the lifting device 2 rises, it can be lifted by the movable seat compression spring 139 Play movable seat 1310, make movable seat 1310 move upwards, the first pothole connecting plate 133 reversely pulls the second pothole connecting plate 134, makes the second pothole connecting plate 134 reversely rotate around the hinge in the middle thereof, the second The other end of the hole connecting plate 134 drives the third hole connecting plate 135, so that the third hole connecting plate 135 pulls the left hole plate 131 and the right hole plate 132 to rotate in reverse, so that the left hole plate 131 in the shrinking state , The right pothole plate 132 returns to the vertical working state again. Wherein, the second pothole connecting plate 134, the third pothole connecting plate 135, the left pothole plate 131, and the chassis 11 constitute a four-bar mechanism, the second pothole connecting plate 134, the third pothole connecting plate 135, the right pit Hole plate 132, chassis 11 have also constituted four-bar mechanism, when the middle part hinge of the second hole connecting plate 134 and the hinge of the second hole connecting plate 134 other ends form the straight line and the 3rd hole connecting plate 135 When the straight line formed by the hinges at both ends is close to the collinear position, it is close to the dead angle position of the four-bar mechanism at this time, and the left hole plate 131 and the right hole plate 132 are designed to be perpendicular to the ground at this time, and the limit column 1381 is set. The position is just on the second pothole connecting plate 134, so that the pothole connecting plate cannot continue to rotate in reverse, and the vertical state of the left pothole plate 131 and the right pothole plate 132 is kept, and at this time, due to the four-bar mechanism being close to the dead angle position, so that the left hole plate 131 and the right hole plate 132 can resist the impact of strong lateral force and maintain great stability.

The fourth pothole connecting plate 136 is composed of the fourth pothole connecting plate left section 1361, the fourth pothole connecting plate right section 1362 and the connecting section 1363, and the two ends of the connecting section 1363 are respectively fixed on the fourth pothole connecting plate On the left section 1361 and the right section 1362 of the fourth pothole connecting plate.

Described supporting leg structure 14 comprises vehicle frame plate 141, supporting leg seat plate 142, supporting leg mounting plate 143, supporting outer tube 144, supporting inner tube 145 and supporting foot 146, and vehicle frame plate 141 is fixed on the chassis 11, supporting leg The seat plate 142 is fixed on the frame plate 141, and the top and bottom of the outrigger seat plate 142 are respectively provided with an upper card slot 1472 for snapping in the upper card shaft 1471 and a lower card slot 1482 for clipping in the lower card shaft 1481, Outrigger mounting plate 143 is fixed on the both sides of supporting outer tube 144, and upper clamping shaft 1471 and lower clamping shaft 1481 are fixed on the supporting leg mounting plate 143, and supporting oil cylinder 149 is fixed in supporting outer tube 144, and the expansion rod of supporting oil cylinder 149 is fixed. On the support inner tube 145 , the lower end of the support inner tube 145 is provided with a support foot 146 . With this structure, the lower clamping shaft 1481 can be clamped into the lower clamping groove 1482 and the upper clamping shaft 1471 can be clamped into the upper clamping groove 1472 to realize the installation of the outrigger mounting plate 143 on the outrigger seat plate 142, thereby supporting the outer The pipe 144 is fixed on the leg seat plate 142, which is not only convenient for assembly, but also convenient for disassembly and maintenance.

The supporting foot 146 is installed on the supporting foot mounting block 1411 by rotating the supporting foot shaft 1410, and the supporting foot mounting block 1411 is installed on the lower end of the supporting inner tube 145 by rotating the mounting block shaft 1412. The axis of the supporting foot shaft 1410 and the mounting block shaft 1412 The axis lines are arranged horizontally and perpendicular to each other, and the lower end of the supporting inner tube 145 is provided with a supporting spring plate located above the supporting foot mounting block 1411 . With this structure, the support foot 146 can realize two degrees of freedom of rotation, and during the rotation process of the support foot 146, it can receive the elastic force of the support spring plate, which can maintain a good elastic effect and prevent rigid collision.

The lifting device 2 includes a scissor lift structure 21 and a working platform 22,

The scissor lift structure 21 includes an upper scissor unit 211, a lower scissor unit 212, and a lifting cylinder 213. A plurality of upper scissor units 211 are hinged sequentially from bottom to top, and a plurality of lower scissor units 212 are connected from bottom to top. The lower scissors unit 212 includes two first outer scissor tubes 2121, two first inner scissor tubes 2122 arranged between the two first outer scissor tubes 2121, and the first outer scissor tube 2122 for connecting the first outer scissor tubes. The lower scissor shaft 2123 of the scissor tube 2121 and the first inner scissor tube 2122, the lower end, the middle part and the upper end of the first outer scissor tube 2121 are provided with a lower scissor shaft fixing hole 2124 for inserting the lower scissor shaft 2123 , the upper end, the middle part and the lower end of the first inner scissor tube 2122 are provided with a first bearing installation hole 2125, and the first bearing installation hole 2125 is equipped with a first bearing 2126, which is located in the middle of the lifting device 2 in the same lower scissor unit 212 The lower scissor shaft 2123 of the position passes through the lower scissor shaft fixing hole 2124 in the middle part of one of the first outer scissor tubes 2121 and the inner part of the first bearing 2126 in the middle part of one of the first inner scissor tubes 2122. hole, the inner hole of the first bearing 2126 in the middle part of the other first inner scissor tube 2122 and the lower scissor shaft fixing hole 2124 in the middle part of the other first outer scissor tube 2121, the two lower scissors adjacent up and down In the unit 212, the lower scissor shaft 2123 located in front of the lifting device 2 sequentially passes through the lower scissor shaft fixing hole 2124 at the lower end of one of the first outer scissor tubes 2121 of the upper lower scissor unit 212, and is located below The inner hole of the first bearing 2126 at the upper end of one of the first inner scissor tubes 2122 of the lower scissor unit 212, the first inner hole at the upper end of the other first inner scissor tube 2122 of the lower scissor unit 212 below. The inner hole of the bearing 2126 and the lower scissor shaft fixing hole 2124 at the lower end of the other first outer scissor tube 2121 of the upper lower scissor unit 212 pass through the lower scissor shaft 2123 located at the rear of the lifting device 2 in sequence The lower scissor shaft fixing hole 2124 at the lower end of one of the first outer scissor tubes 2121 of the lower scissor unit 212 located below, the upper end of one of the first inner scissor tubes 2122 of the upper lower scissor unit 212 The inner hole of the first bearing 2126, the inner hole of the first bearing 2126 at the upper end of the other first inner scissor tube 2122 of the upper lower scissor unit 212 and the other first inner hole of the upper lower scissor unit 212 of the upper scissor unit 212 The lower scissor shaft fixing hole 2124 at the lower end of an outer scissor tube 2121, the lower scissor shaft 2123 is fixed to the first bearing 2126, the lower scissor shaft 2123 is pierced with a first screw 2128, and the two ends of the first screw 2128 are sleeved with The first locking plate 2127, the first locking plate 2127 is compressed and fixed on the outer wall of the first outer scissor tube 2121 through the first nut 2129 installed on the first screw rod 2128, and the first locking plate 2127 is located at the bottom of the lower scissor unit 212. An inner scissor pipe 2122 is hinged on the chassis 11, and the chassis 11 is provided with two rails 214, the position The two first outer scissor tubes 2121 of the lowermost lower scissors unit 212 are all rotatably equipped with track wheels 215, and the two track wheels 215 are arranged on two tracks 214, and the uppermost lower scissors unit The two first inner scissor pipes 2122 of 212 are fixed with oil cylinder mounts 216, and the cylinder body of the lift cylinder 213 is hinged on the oil cylinder mounts 216. The upper scissor unit 211 includes two second outer scissor pipes 2111, one The first inner scissor tube 2122 arranged between the two second outer scissor tubes 2111 and the upper scissor shaft for connecting the second outer scissor tube 2111 and the second inner scissor tube, the lift cylinder 213 The telescopic rod is hinged on the first inner scissor tube 2122 of the lowermost upper scissor unit 211, and the lower, middle and upper ends of the second outer scissor tube 2111 are provided with an upper scissor shaft for insertion of the upper scissor shaft. The fixing hole, the upper end, the middle part and the lower end of the second inner scissor pipe are all provided with a second bearing installation hole, and the second bearing installation hole is equipped with a second bearing, which is located in the middle position of the lifting device 2 in the same upper scissor unit 211 The upper scissor shaft hinge passes through the upper scissor shaft fixing hole in the middle part of one of the second outer scissor tubes 2111, the inner hole of the second bearing on the middle part of the second inner scissor tube, and the other second outer scissor shaft. The upper scissor shaft fixing hole in the middle of the fork tube 2111, among the two upper scissor units 211 adjacent up and down, the upper scissor shaft located in front of the lifting device 2 passes through one of the upper scissor units 211 in turn. The upper scissor shaft fixing hole at the lower end of the second outer scissor tube 2111, the inner hole of the second bearing at the upper end of the second inner scissor tube of the upper scissor unit 211 located below, and the upper scissor unit 211 located above The upper scissor shaft fixing hole at the lower end of the other second outer scissor pipe 2111, the upper scissor shaft located at the rear of the lifting device 2 passes through one of the second outer scissors of the lower upper scissor unit 211 in sequence The fixing hole of the upper scissor shaft at the lower end of the tube 2111, the inner hole of the second bearing at the upper end of the second inner scissor tube of the upper upper scissor unit 211 and the other second outer root of the upper upper scissor unit 211. The upper scissor shaft fixing hole at the lower end of the scissor tube 2111, the upper scissor shaft is fixed with the second bearing, the upper scissor shaft is pierced with a second screw rod 2114, and the two ends of the second screw rod 2114 are provided with a second locking plate 2116, The second locking plate 2116 is compressed and fixed on the outer wall of the second outer scissor tube 2111 by the second nut 2115 installed on the second screw rod 2114, and the second inner scissor tube of the uppermost upper scissor unit 211 is hinged On the bottom of the working platform 22, two track 214 grooves are arranged on the bottom of the working platform 22, and the second outer scissor tube 2111 of the upper scissor unit 211 located at the top is all rotatably equipped with track 214 groove rollers, the two Track 214 groove rollers are arranged in two track 214 grooves.

The lower ends of the two second outer scissor tubes 2111 of the lowermost upper scissor unit 211 are arranged between the upper ends of the two first outer scissor tubes 2121 of the uppermost lower scissor unit 212, at the bottom The lower ends of the two second outer scissor tubes 2111 of the upper scissor unit 211 and the upper ends of the two first outer scissor tubes 2121 of the uppermost lower scissor unit 212 pass through the middle scissor at the front position of the lifting device 2 The shaft 2117 realizes the coaxial hinge, and the lower end of the second inner scissor tube of the lowermost upper scissor unit 211 is arranged at the upper end between the two first inner scissor tubes 2122 of the uppermost lower scissor unit 212 , the lower end of the second inner scissor tube of the lowermost upper scissor unit 211 and the upper end between the two first inner scissor tubes 2122 of the uppermost lower scissor unit 212 pass through the position behind the lifting device 2 The intermediate scissors shaft 2117 is hinged on a straight line and coaxially. With this structure, the upper scissor unit 211 with a narrower width not only ensures the lifting height, but also reduces the weight to be carried by the lifting hydraulic cylinder by reducing the thickness of the upper scissor unit 211, thereby improving equipment efficiency and Safety, and the stability of the support is guaranteed by the lower scissor unit 212 with a wider width.

In a pair of two upper scissor units 211 that are adjacent up and down, the second outer scissor tube 2111 of the upper upper scissor unit 211 is equipped with an inspection support rod 2118, and one end of the inspection support rod 2118 is hinged on the second outer scissor tube. On the scissor tube 2111, the other end of the maintenance pole 2118 is fixed with a fixed bayonet 21181, and the second outer scissor tube 2111 of the upper scissor unit 211 above is fixed with a fixed bayonet for clamping the fixed bayonet 21181 2119, the second outer scissor tube 2111 and the inspection support rod 2118 are provided with a pin hole 21110 for inserting a fixing pin. With this structure, when maintenance is required, the fixing pin is pulled out, the maintenance pole 2118 is turned, the fixed bayonet 21181 is aligned with the fixed bay 2119, and the lifting device 2 is operated to descend, and the maintenance pole 2118 is placed on the fixed bay 2119, thereby preventing the situation that the lifting device 2 continues to descend due to the sudden loss of oil pressure of the lifting hydraulic cylinder during the maintenance process, reducing safety risks.

The scissor lift structure 21 is provided with a wiring pipeline structure, and the wiring pipeline structure includes a wiring hard pipe 2171, a wiring hose 2172 and a control line for controlling the work of the working platform 22. The wiring hard pipe 2171 is fixed on On the scissor lift structure 21, the adjacent wiring hard tubes 2171 are connected by the wiring hard tubes 2171, the wiring pipeline formed by the wiring hard tubes 2171 and the wiring hoses 2172 is set from the chassis 11 to the working platform 22, and the control line is set In the wiring pipeline composed of the wiring hard tube 2171 and the wiring hose 2172, the wiring hard tube 2171 is fixed on the scissor lift structure 21 through the hard tube fixing frame 2173, wherein the hard tube fixing frame 2173 includes an Ω-shaped fixing piece 2174 and the mounting piece 2175, the wiring hard tube 2171 passes through the Ω-shaped fixing piece 2174, and the two ends of the Ω-shaped fixing piece 2174 are fixed on the mounting piece 2175 by screws, so that the wiring hard tube 2171 is fixed on the hard tube On the fixing frame 2173 , the mounting piece 2175 is fixed on the scissor lift structure 21 . With this structure, the wiring pipeline formed by the wiring hard tube 2171 and the wiring hose 2172 not only enables the control line to be better protected in the wiring hard tube 2171, but also passes the wiring hard tube between adjacent wiring hard tubes 2171. The connection of 2171 makes it possible for the adjacent wiring hard tubes 2171 to rotate in accordance with the movement of the scissor lift structure 21 during the up and down process of the scissor lift structure 21 .

The end of the hard wiring pipe 2171 is provided with an external thread, and the end of the wiring hose 2172 is fixed with a chuck 2176. The chuck 2176 is fixed on the installation pipe, and the installation pipe is provided with an internal thread, so that the installation pipe is tightened and fixed on the wiring. The end of the hard tube 2171. With this structure, the wiring hard tube 2171 and the wiring hose 2172 can be easily disengaged, thereby facilitating the installation and maintenance of the control line.

Described working platform 22 comprises platform fixed bottom plate 221, railing frame 222 and railing door 223,

One side of the railing door 223 is rotated and installed on the railing frame 222, so that the railing door 223 can rotate around the axis in the vertical direction, and the railing door 223 is locked on the railing frame 222 by a railing lock, and the railing lock includes a door Lock bar 2241, movable buckle 2242 and door lock buckle 2243, one end of described door lock lever 2241 is hinged on one side of railing door 223, and the other side of railing door 223 is fixed movable buckle 2242 and door lock buckle 2243, and movable buckle 2242 Between the railing door 223 and the movable space 22421 that limits the movable range of the door lock bar 2241, the door lock bar 2241 passes through the movable space 22421, and the door lock catch 2243 is fixed on the railing frame 222, and the door lock catch 2243 is located on the door lock Below the other end of the rod 2241 , a lock groove 22431 with an upper opening is provided on the door lock catch 2243 . With this structure, the door lock bar 2241 can drop the other end of the door lock bar 2241 into the lock groove 22431 due to gravity, so that the railing door 223 cannot be opened. When the railing door 223 needs to be opened, only need to lift the door The lock bar 2241 is sufficient. In this structure, from one side of the railing door 223 to the door lock bar 2241 on the other side of the railing door 223, the operator only needs to put his hands deep into the middle of the railing door 223 to lift the door lock bar 2241. When the operator enters the working platform 22, he needs to climb up the ladder, so the railing door 223 can be opened at the middle position of the door lock bar 2241, so that the operation is simple and convenient.

A sliding base plate 224 is slidably installed on the fixed base plate 221 of the platform, two platform chute 2211 is arranged on the left side and the right side of the fixed base plate 221 of the platform, and two platforms are arranged on the left side and the right side of the sliding base plate 224 Roller, the platform roller is arranged in the platform chute 2211, and railing frame 222 is all installed on platform fixed bottom plate 221 and sliding bottom plate 224, and the railing frame 222 on the described sliding bottom plate 224 and the railing frame 222 on the platform fixed bottom plate 221 pass activity The platform lock realizes the connection, and the movable platform lock comprises a fixed swing bar 2251, a first platform lock plate 2252 and a second platform lock plate 2253, and the fixed swing bar 2251 is hinged on the railing frame 222 on the sliding base plate 224, and one end of the fixed swing bar 2251 An anti-off pressure plate 2254 is fixed, the first platform lock plate 2252 and the second platform lock plate 2253 are fixed on the railing frame 222 on the platform fixed bottom plate 221 one after the other, the first platform lock plate 2252 and the second platform lock plate 2253 Lock plate slots 2255 are all set on the top. With this structure, when it is necessary to expand the movable space 22421 of the working platform 22, the sliding bottom plate 224 is moved forward, and when the fixed swing bar 2251 moves to the position of the first platform lock plate 2252, the fixed swing bar 2251 is rotated, and the fixed swing bar 2251 Inserted into the lock plate groove 2255 and the anti-off plate 2254 is pressed against the first platform lock plate 2252, which can prevent the fixed swing rod 2251 from reversing due to its own weight, thereby preventing the swing rod from being released from the lock plate groove 2255, thereby realizing the fixed bottom plate 221 and the sliding bottom plate of the platform 224 fixed. When the activity space 22421 of the working platform 22 needs to be reduced, the sliding bottom plate 224 is moved backward, and when the fixed swing bar 2251 moves to the position of the second platform lock plate 2253, the fixed swing bar 2251 is rotated, and the fixed swing bar 2251 is inserted into the lock plate groove 2255 Inside and the anti-off pressure plate 2254 is pressed on the second platform lock plate 2253, which can prevent the fixed swing bar 2251 from reversing due to its own weight, thereby preventing the swing bar from breaking away from the lock plate groove 2255, thereby realizing the fixing of the platform fixed bottom plate 221 and the sliding bottom plate 224.

The fixed swing bar 2251 is L-shaped, the first platform lock plate 2252 and the second platform lock plate 2253 are vertically arranged, and the middle part of the fixed swing bar 2251 is hinged on the railing frame 222 on the platform fixed bottom plate 221 . With this structure, the other end of the fixed swing rod 2251 can be used as a handle for applying force, and when the other end of the fixed swing rod 2251 enters the lock plate groove 2255, the other end of the fixed swing rod 2251 is vertically arranged, so there will be no Impairment of freedom of movement of the operator.

The above content described in this specification is only an illustration of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the specification of the utility model or go beyond the definition of the claims All should belong to the protection scope of the present utility model.

Claims (7)

1. A scissor-type aerial work platform is characterized in that: it comprises a traveling chassis and a lifting device, and the traveling chassis comprises a chassis, a traveling device, a pothole protection mechanism and a leg structure, and the traveling device comprises a left steering wheel, Right steering wheel, left wheel frame, right wheel frame, linkage frame, steering oil cylinder and steering bending plate, described left steering wheel, right steering wheel are respectively rotated and installed on left wheel frame, right wheel frame, left steering wheel, right steering wheel respectively The drive is realized by the left drive motor fixed on the left wheel frame and the right drive motor fixed on the right wheel frame. The left wheel frame and the right wheel frame are installed on the chassis through the rotation of the wheel frame shaft. The axis of the wheel frame shaft is vertically set and linked. The frame is composed of the main body of the linkage frame and two connecting sections of the linkage frame which are respectively fixed at both ends of the main body of the linkage frame. The steering oil cylinder is located between the two connecting sections of the linkage frame. Connected to the connecting sections of the two linkage frames, one end of the two steering bends is respectively hinged on the left wheel frame and the right wheel frame, the other ends of the two steering bends are respectively hinged on the two ends of the main body of the linkage frame, and the steering oil cylinder is fixed on On the chassis, a section of depression is provided on the side of the steering bending plate facing the wheel frame shaft; the pothole protection mechanism includes a left pothole plate, a right pothole plate, two first pothole connecting plates, two second Pothole connecting plate, two third pothole connecting plates, a fourth pothole connecting plate, two movable seats, two guide shafts, two limiting plates and two movable seat compression springs, wherein the left The pothole plate and the right pothole plate are respectively rotated and installed on the left and right sides of the bottom of the chassis. , the two guide shafts are vertically slidably installed on the chassis, the two movable seats are respectively fixed on the two guide shafts, the two movable seat compression spring sleeves are respectively arranged on the two guide shafts and the upper and lower ends of the movable seat compression springs Respectively resist the lower end of the movable seat and the chassis, thereby exerting an upward thrust on the movable seat through the pressure spring of the movable seat, the upper end of the guide shaft is located below the lifting device of the working platform, and the two ends of the fourth pit connecting plate are respectively fixed on the On the two movable seats, the two movable seats are arranged on the left and right respectively, one end of the two first hole connecting plates is respectively hinged to the movable seat, and the other ends of the two first hole connecting plates are respectively hinged to two second hole connecting plates One end of the two second pothole connecting plates is hinged on the chassis, the other ends of the two second pothole connecting plates are respectively hinged to one end of the two third pothole connecting plates, and the two third pothole connecting plates The other end of the hole is hinged on the left hole plate and the right hole plate, one end of the limiting plate and one end of the third hole connecting plate are coaxially hinged on the second hole connecting plate, and the other end of one of the limiting plates The other end of one of the third hole connecting plates is coaxially hinged on the left hole plate, and the other end of the other limiting plate and the other end of the third hole connecting plate are coaxially hinged on the right hole plate On, one end of the limit plate is provided with a limit column for abutting against the second hole connecting plate to limit the rotation range of the left hole plate and the right hole plate; the leg structure includes a frame plate, a leg seat Plates, Outrigger Mounting Plates, Support Outer Tubes, Support Inner Tubes and Support Feet, Frame Plates Fixed on the chassis, the outrigger seat plate is fixed on the frame plate, and the upper and lower sides of the outrigger seat plate are respectively provided with an upper card slot for clamping the upper clamping shaft and a lower clamping groove for clamping the lower clamping shaft, The outrigger mounting plate is fixed on both sides of the supporting outer tube, the upper clamping shaft and the lower clamping shaft are fixed on the outrigger mounting plate, a supporting oil cylinder is fixed in the supporting outer tube, and the telescopic rod of the supporting oil cylinder is fixed on the supporting inner tube to support the inner tube The lower end of the support foot is installed; the lifting device includes a scissor lift structure and a working platform, and the scissor lift structure includes an upper scissor unit, a lower scissor unit and a lifting cylinder, and a plurality of upper scissor units from bottom to top The upper part is hinged sequentially, and the lower scissors units are hinged sequentially from bottom to top, wherein the lower scissors unit includes two first outer scissor tubes, two first inner scissor tubes arranged between the two first outer scissor tubes The scissor tube and the lower scissor shaft used to connect the first outer scissor tube and the first inner scissor tube, the lower, middle and upper ends of the first outer scissor tube are provided with lower scissors for the insertion of the lower scissor shaft The fork shaft fixing hole, the upper end, the middle part and the lower end of the first inner scissor tube are all provided with the first bearing installation hole, and the first bearing installation hole is equipped with the first bearing, which is located in the middle position of the lifting device in the same lower scissor unit The lower scissor shaft hinge passes through the lower scissor shaft fixing hole in the middle part of one of the first outer scissor tubes, the inner hole of the first bearing on the middle part of one of the first inner scissor tubes, and the other first The inner hole of the first bearing in the middle of the inner scissor tube and the fixing hole of the lower scissor shaft in the middle of the other first outer scissor tube. The fork shaft sequentially passes through the lower scissor shaft fixing hole at the lower end of one of the first outer scissor tubes of the upper lower scissor unit, and the upper end of one of the first inner scissor tubes of the lower lower scissor unit. The inner hole of the first bearing, the inner hole of the first bearing at the upper end of the other first inner scissor tube of the lower scissor unit located below, and the other first outer scissor tube of the upper lower scissor unit The lower scissor shaft fixing hole at the lower end, the lower scissor shaft at the rear of the lifting device passes through the lower scissor shaft fixing hole at the lower end of one of the first outer scissor tubes of the lower scissor unit in turn, and the lower scissor shaft at the upper The inner hole of the first bearing at the upper end of one of the first inner scissor tubes of the lower scissor unit, the inner hole of the first bearing at the upper end of the other first inner scissor tube of the upper lower scissor unit, and The lower scissor shaft fixing hole at the lower end of the other first outer scissor tube of the upper lower scissor unit, the lower scissor shaft is fixed with the first bearing, the lower scissor shaft is passed through the first screw rod, and the The first locking plate is sleeved at both ends, and the first locking plate is pressed and fixed on the outer wall of the first outer scissor tube through the first nut installed on the first screw rod. The first locking plate of the lower scissor unit located at the bottom The inner scissor tube is hinged on the chassis, and two tracks are arranged on the chassis, and the two first outer scissor tubes of the lower scissor unit located at the bottom are all rotatably equipped with track wheels, and the two track wheels are arranged on two sides. On the track, the two first inner scissor tubes of the uppermost lower scissor unit are fixed with oil cylinder mounts, the cylinder body of the lifting cylinder is hinged on the oil cylinder mount, and the upper scissor unit includes two second outer Scissor tube, a set Between the first inner scissor tube between the two second outer scissor tubes and the upper scissor shaft for connecting the second outer scissor tube and the second inner scissor tube, the telescopic rod of the lifting cylinder is hinged at the most On the first inner scissor tube of the lower upper scissor unit, the lower, middle and upper ends of the second outer scissor tube are provided with upper scissor shaft fixing holes for the upper scissor shaft to be inserted into, and the second inner scissor tube The upper end, the middle part and the lower end of the upper end are provided with a second bearing installation hole, and the second bearing installation hole is equipped with a second bearing. In the same upper scissors unit, the upper scissors shaft hinge located in the middle of the lifting device passes through one of them in turn. The upper scissor shaft fixing hole in the middle of the second outer scissor tube, the inner hole of the second bearing in the middle of the second inner scissor tube, and the upper scissor shaft fixing hole in the middle of the second outer scissor tube, up and down Among the two adjacent upper scissor units, the upper scissor shaft located in front of the lifting device sequentially passes through the upper scissor shaft fixing hole at the lower end of one of the second outer scissor tubes of the upper upper scissor unit, The inner hole of the second bearing at the upper end of the second inner scissor tube of the lower upper scissor unit and the upper scissor shaft fixing hole at the lower end of the other second outer scissor tube of the upper upper scissor unit are located at The upper scissor shaft at the rear of the lifting device passes through the upper scissor shaft fixing hole at the lower end of one of the second outer scissor tubes of the lower upper scissor unit, and the second inner scissor of the upper upper scissor unit. The inner hole of the second bearing at the upper end of the fork tube and the upper scissor shaft fixing hole at the lower end of another second outer scissor tube of the upper upper scissor unit, the upper scissor shaft is fixed with the second bearing, and the upper scissors The shaft is threaded with a second screw, and the two ends of the second screw are provided with a second locking plate, and the second locking plate is pressed and fixed on the outer wall of the second outer scissor tube through the second nut installed on the second screw. The second inner scissor tube of the upper scissor unit located at the top is hinged on the bottom of the working platform, and two track grooves are arranged on the bottom of the working platform, and the second outer scissor tube of the upper scissor unit located at the top can rotate Track groove rollers are installed, the two track groove rollers are arranged in two track grooves, and the lower ends of the two second outer scissor tubes of the lowermost upper scissor unit are arranged on the uppermost lower scissor unit Between the upper ends of the two first outer scissor tubes of the uppermost scissor unit, the lower ends of the two second outer scissor tubes of the lowermost upper scissor unit The upper end of the tube is hinged coaxially through the middle scissor shaft at the front of the lifting device, and the lower end of the second inner scissor tube of the lower scissor unit located at the bottom is set on the two first inner scissor units of the uppermost lower scissor unit. The upper end between the inner scissor tubes, the lower end of the second inner scissor tube of the lowermost upper scissor unit and the upper end between the two first inner scissor tubes of the uppermost lower scissor unit through the The middle scissor shaft at the rear of the lifting device is linearly and coaxially articulated; the scissor-type lifting structure is provided with a wiring pipeline structure, and the wiring pipeline structure includes wiring hard pipes, wiring hoses, and is used to control the working platform. The wiring hard tube is fixed on the scissor lift structure, and the adjacent wiring hard tubes are connected by the wiring hard tube, and the wiring pipeline composed of the wiring hard tube and the wiring hose is connected from the chassis. placed on the working platform, the control line is set in the wiring pipeline composed of wiring hard pipes and wiring hoses, and the hard wiring pipes are fixed on the scissor lift structure through the hard pipe fixing frame, wherein the hard pipe fixing frame includes Ω-shaped The fixed piece and the installation piece, the wiring hard tube passes through the Ω-shaped fixed piece, and the two ends of the Ω-shaped fixed piece are fixed on the installation piece by screws, so that the wiring hard tube is fixed on the hard tube fixing frame, the The mounting piece is fixed on the scissor lift structure; the working platform includes a platform fixed base plate, a railing frame and a railing door, and one side of the railing door is rotated and installed on the railing frame, so that the railing door can rotate around the The axis rotates, and the railing door is locked on the railing frame through the railing lock. The railing lock includes a door locking rod, a movable buckle and a door locking buckle. One end of the door locking rod is hinged on one side of the railing door, and the other side of the railing door The movable buckle and the door lock buckle are fixed on one side, and there is an activity space that limits the range of movement of the door lock rod between the movable buckle and the railing door. The door lock rod passes through the activity space, and the door lock buckle is fixed on the railing frame. The buckle is located under the other end of the door lock rod, and the door lock buckle is provided with a lock groove with an upper opening; a sliding bottom plate is slidably installed on the fixed bottom plate of the platform, and two Platform chute, two platform rollers are arranged on the left and right sides of the sliding bottom plate, the platform rollers are arranged in the platform chute, railing frames are installed on the fixed bottom plate and the sliding bottom plate of the platform, and the railing frames on the sliding bottom plate It is connected with the railing frame on the fixed bottom plate of the platform through the movable platform lock. The movable platform lock includes a fixed swing rod, a first platform lock plate and a second platform lock plate. The fixed swing rod is hinged on the railing frame on the sliding bottom plate. One end of the rod is fixed with an anti-off pressure plate, and the first platform lock plate and the second platform lock plate are fixed on the railing frame on the fixed bottom plate of the platform one by one. board slot. 2. A scissor-type aerial work platform according to claim 1, characterized in that: among a pair of upper and lower upper scissor units, the second outer scissor tube of the upper upper scissor unit An inspection support rod is installed on the top, one end of the inspection support rod is hinged on the second outer scissor tube, and the other end of the inspection support rod is fixed with a fixed bayonet, which is fixed on the second outer scissor tube of the upper upper scissor unit There is a fixed clip seat for clamping the fixed bayonet, and a pin hole for inserting a fixed pin is provided on the second outer scissors tube and the inspection support rod. 3. A scissor-type aerial work platform according to claim 1, characterized in that: the end of the wiring hard pipe is provided with an external thread, the end of the wiring hose is fixed with a chuck, and the chuck is fixed on On the installation pipe, an internal thread is arranged on the installation pipe, so that the installation pipe is screwed and fixed on the end of the wiring hard pipe. 4. A scissor type aerial work platform according to claim 1, characterized in that: the fourth pothole connecting plate is connected by the left section of the fourth pothole connecting plate, the right section of the fourth pothole connecting plate and Section constitutes, and the two ends of connecting section are respectively fixed on the left section of the 4th pothole connecting plate, the 4th pothole connecting plate right section. 5. A scissor-type aerial work platform according to claim 1, characterized in that: the fixed swing rod is L-shaped, the first platform lock plate and the second platform lock plate are arranged vertically, and the middle part of the fixed swing rod Hinged to the railing frame on the fixed base plate of the platform. 6. A scissor-type aerial work platform according to claim 1, characterized in that: the support foot is installed on the support foot installation block through the rotation of the support foot shaft, and the support foot installation block is installed on the support foot installation block through the rotation of the installation block Support the lower end of the inner tube, the axis of the supporting foot shaft and the axis of the mounting block shaft are horizontally arranged and perpendicular to each other, and the lower end of the supporting inner tube is provided with a supporting spring plate located above the mounting block of the supporting foot. 7. The scissor type aerial work platform according to claim 1, characterized in that: the main body of the linkage frame and the connecting sections of the two linkage frames are in an integrated structure.