Low-level lift

Abstract

The application discloses a low-emission lifting platform, which comprises a platform, a chassis, a scissor mechanism, at least one telescopic lifting mechanism and at least one auxiliary mechanism, the scissor mechanism is arranged between the chassis and the platform, the lifting mechanism and the auxiliary mechanism are arranged on the scissor mechanism one by one, the scissor mechanism comprises a first scissor group and a second scissor group, the first scissor group and the second scissor group are rotationally connected with each other, the lifting mechanism comprises a fixed end and a jacking end, the fixed end and the jacking end are rotationally connected with the first scissor group and the second scissor group respectively, the auxiliary mechanism comprises a deflector and a lifter, the deflector is movably arranged between the jacking end and the second scissor group, the lifter is arranged on the chassis, a lifting track is arranged on the lifter, the deflector is suitable for moving the jacking end along the lifting track, and the lifting track is suitable for increasing the included angle between the lifting mechanism and the chassis. Compared with a conventional lifting platform, the lifting platform has the characteristics of a lower starting height and a wider application range.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lifting equipment, in particular to a low-lift lifting platform. BACKGROUND

[0002] The lifting platform is a vertical conveying person or object hoisting machinery. It is also a vertical conveying device in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with various plane conveying devices as connecting devices of conveying lines at different heights. The lifting platform driven by hydraulic pressure is called a hydraulic lifting machine.

[0003] However, the existing lifting platform has the following defects: the starting height of the conventional lifting platform is usually above 200 mm. When the gap between the object and the ground is the same as the height, the use scene of the conventional lifting platform will be limited, and the conventional lifting platform cannot be used continuously. SUMMARY

[0004] One purpose of the application is to provide a low-lift lifting platform with a lower starting height and which is not prone to stop or fall back during lifting.

[0005] To achieve the above purpose, the application adopts the technical scheme: a low-lift lifting platform, comprising a platform, a chassis, a scissor mechanism, at least one telescopic lifting mechanism and at least one auxiliary mechanism, the scissor mechanism is arranged between the chassis and the platform, the lifting mechanism and the auxiliary mechanism are arranged on the scissor mechanism one by one, the scissor mechanism comprises a first scissor group and a second scissor group, the first scissor group and the second scissor group are connected to each other in rotation, the lifting mechanism comprises a fixed end and a jacking end, the fixed end and the jacking end are rotatably connected with the first scissor group and the second scissor group respectively, the auxiliary mechanism comprises a deflector and a lifter, the deflector is movably arranged between the jacking end and the second scissor group, the lifter is arranged on the chassis, the lifter is provided with a lifting track, the deflector is adapted to move the jacking end along the lifting track, and the lifting track is adapted to increase the included angle between the lifting mechanism and the chassis.

[0006] As an improvement, the lowest lifting angle of the lifting mechanism is alpha, the included angle between the starting point of the lifting track and the chassis is beta1, and the included angle between the terminal point of the lifting track and the chassis is beta2, beta1<=alpha<beta2.

[0007] Specifically, the deflector comprises a connecting chain, the second scissor group is provided with a support seat, one end of the connecting chain is rotatably connected with the support seat, and the other end of the connecting chain is rotatably connected with the jacking end.

[0008] As an improvement, the support base comprises a lifting side, which is located on the side of the connecting chain away from the fixed end at the connection between the connecting chain and the support base, and a lifting part is arranged on the connecting chain, the main structure of the lifting part is an arc-shaped protrusion curved outward of the connecting chain, and the lifting part is adapted to abut against the lifting side when the lifting end moves to the terminal point of the lifting track.

[0009] As an improvement, the lifting end is provided with auxiliary wheels, and the surface of the lifting track is curved, and the auxiliary wheels are adapted to move along the lifting track before being separated from the lifter.

[0010] As an improvement, the lifting end is provided with a connecting shaft, the number of auxiliary wheels, connecting chains and lifters is two, the auxiliary wheels and the connecting chains are symmetrically arranged on the connecting shaft on both sides of the lifting end, and the lifters are arranged on the base frame in cooperation with the auxiliary wheels.

[0011] As an improvement, a fixed sleeve is arranged on the first scissor group, the two sides of the fixed sleeve are rotationally connected with the first scissor group, and the fixed end is mounted and embedded in the fixed sleeve.

[0012] As an improvement, a guide wheel and a brake mechanism are arranged on the first scissor group, and a guide track is arranged on the base frame, the guide wheel is adapted to move along the guide track during the lifting of the table top, and the brake mechanism is adapted to stop the movement of the guide wheel on the guide track when the lifting mechanism stops.

[0013] As an improvement, the connection mode of the guide wheel and the guide track is a gear and rack connection, the two sides of the guide wheel are provided with brake discs, a cavity is formed in the first scissor group, the brake mechanism is embedded in the cavity, the brake mechanism comprises a controller and a brake, the controller is adapted to make the brake fit between the two brake discs, a friction layer is arranged on the guide wheel, and the brake is adapted to contact the friction layer when it is fit between the two brake discs.

[0014] As an improvement, leveling mechanisms are arranged around the base frame, the leveling mechanisms comprise leveling columns and levelers, the levelers are screw-mounted on the top of the leveling columns, and the levelers are adapted to abut against the bottom of the table top when the table top descends; safety arms are arranged on both sides of the first scissor group, one end of the safety arm is rotationally connected with the first scissor group, the other end of the safety arm is detachably connected with the first scissor group, the safety arm is adapted to be clamped and blocked with the frame of the base frame to prevent the movement of the first scissor group; and the lifting mechanism comprises a hydraulic cylinder.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] 1. Compared with traditional lifting platforms, this lifting platform has a wider range of applications and can be used when the gap between the object and the ground is small. Moreover, the design of this lifting platform solves the design problems of current domestic low-lift lifting platforms, breaks the current design gap of low-lift lifting platforms with small platform lengths, especially those with a platform length of less than 1m, and solves the problem of the small starting angle between the lifting mechanism and the scissor mechanism, thus achieving stable lifting of the platform.

[0017] 2. The deflector guides the lifting mechanism during operation, preventing brief pauses or drops in the lifting platform during the transition from the initial state of using external auxiliary lifting to natural lifting. This ensures a smooth and stable lifting process and makes the operation of the lifting platform more stable.

[0018] 3. The braking mechanism can brake and position the scissor lift mechanism when the lifting mechanism stops, improving the stability of the scissor lift mechanism during deformation. When the lifting mechanism fails or loses support for the scissor lift mechanism, the braking mechanism can slow down the deformation and folding process of the scissor lift mechanism, preventing the platform from falling rapidly and causing greater damage and loss. Attached Figure Description

[0019] Figure 1 This is a perspective view according to a preferred embodiment of the present application;

[0020] Figure 2 This is an internal structural view of the lifting mechanism according to a preferred embodiment of the present application when it is at the starting point of the lifting track;

[0021] Figure 3 This is an internal structural view of the lifting mechanism according to a preferred embodiment of the present application when it is at the end of the lifting track;

[0022] Figure 4 This is a front view according to a preferred embodiment of this application;

[0023] Figure 5 This is a cross-sectional view along the AA direction according to a preferred embodiment of this application;

[0024] Figure 6 This is a cross-sectional view along the BB direction according to a preferred embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the safety arm when deployed according to a preferred embodiment of this application;

[0026] Figure 8 This is an overall structural view of the first scissor lift assembly according to a preferred embodiment of this application;

[0027] Figure 9 is a front view of the first scissor group according to a preferred embodiment of the present application;

[0028] Figure 10 is a front view of the first scissor group according to a preferred embodiment of the present application Figure 9 is an enlarged view of a in the middle;

[0029] Figure 11 is a front view of the first scissor group according to a preferred embodiment of the present application Figure 9 is a sectional view along the direction of C-C in the middle;

[0030] Figure 12 is a front view of the first scissor group according to a preferred embodiment of the present application Figure 11 is an enlarged view of b in the middle.

[0031] In the figure: 1, table top; 2, base frame; 21, frame; 22, guide rail; 3, scissor mechanism; 31, first scissor group; 311, fixed sleeve; 312, safety arm; 3121, clamping groove; 3122, stabilizing part; 313, fixing bolt; 314, guide wheel; 3141, brake disc; 315, cavity; 32, second scissor group; 321, support seat; 3211, jacking side; 33, rotating shaft; 4, lifting mechanism; 41, fixed end; 42, jacking end; 421, auxiliary wheel; 422, connecting shaft; 5, auxiliary mechanism; 51, deflector; 511, connecting chain; 5111, jacking part; 52, lifter; 521, lifting rail; 6, brake mechanism; 61, controller; 62, brake; 621, circular arc-shaped groove; 7, leveling mechanism; 71, leveling column; 72, leveler. DETAILED DESCRIPTION

[0032] Hereinafter, the present application will be further described in conjunction with specific embodiments, it should be noted that, in the absence of conflict, the following description of each embodiment or each technical feature can be combined to form a new embodiment.

[0033] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0034] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0035] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0036] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0037] like Figures 1 to 12 As shown, a preferred embodiment of this application includes a platform 1, a base frame 2, a scissor lift mechanism 3, at least one retractable lifting mechanism 4, and at least one auxiliary mechanism 5. The scissor lift mechanism 3 is disposed between the base frame 2 and the platform 1. The lifting mechanism 4 and the auxiliary mechanism 5 are respectively mounted on the scissor lift mechanism 3. The scissor lift mechanism 3 includes a first scissor lift assembly 31 and a second scissor lift assembly 32, which are rotatably connected to each other. The lifting mechanism 4 preferably uses a hydraulic cylinder and includes a fixed end 41 and a lifting end 42. The fixed end 41 is the hydraulic cylinder body, and the lifting end 42 is the hydraulic rod. The fixed end 41 and the lifting end 42 are rotatably connected to the first scissor lift assembly 31 and the second scissor lift assembly 32, respectively. The auxiliary mechanism 5... It includes a deflector 51 and a lifter 52. The deflector 51 is movably disposed between the lifting end 42 and the second scissor lift assembly 32. The lifter 52 is disposed on the base frame 2 and is provided with a lifting rail 521. The deflector 51 is adapted to make the lifting end 42 move along the lifting rail 521. The lifting rail 521 is adapted to increase the included angle between the lifting mechanism 4 and the base frame 2.

[0038] The lifting platform uses an auxiliary mechanism 5 to guide and assist the lifting process during the most difficult initial stage of the lifting mechanism 4, enabling the auxiliary mechanism 5 to smoothly pass through this stage and enter natural lifting operation, thus avoiding phenomena such as brief pauses or brief drops during the operation of the lifting platform.

[0039] Compared to conventional lifting platforms, the main advantage of low-profile lifting platforms is their lower starting height. Conventional lifting platforms have a starting height of over 200mm, while low-profile lifting platforms typically have a starting height of 85-90mm. This results in a smaller starting angle between the hydraulic cylinder and the scissor lift. When the starting angle is too small, the lifting platform cannot unfold smoothly to achieve lifting. Therefore, the shorter the length of the lifting platform, the smaller the space required, and the more difficult the design becomes.

[0040] The current domestic low-put lifting platform design scheme can only be implemented on a large platform, i.e., a platform with a length of more than 1.5 m, and cannot be implemented on a small platform with a length of 1 m. The structural design of the lifting platform solves the current domestic low-put lifting platform design problem, breaks the current domestic small platform low-put lifting platform design blank, especially the low-put lifting platform with a length of 1 m, and is suitable for all specifications and load capacities of low-put lifting platforms.

[0041] As shown in Figures 2 to 3 , the minimum lifting angle of the conventional lifting mechanism 4 is set as a, the minimum lifting angle a can be calculated according to the size of the lifting platform, the angle between the lifting mechanism 4 at the starting point of the lifting rail 521 and the chassis 2 is β1, the angle between the lifting mechanism 4 at the terminal point of the lifting rail 521 and the chassis 2 is β2, β1≤a<β2, the values of a, β1 and β2 are not less than 0, the smaller the value of β1, the smaller the longitudinal space occupied by the lifting mechanism 4 after descending, the greater the descending amplitude of the lifting platform, and the stronger the low-put jacking capacity of the lifting platform, the greater the value of β2, the lower the probability of temporary pause or temporary rollback of the lifting mechanism 4, and the better the smoothness and stability of operation. In this embodiment, the size of the circularly designed platform 1 is 900*550 mm, the initial height is 85 mm, β1 is 4°, β2 is 12°, and β1 and β2 can be adjusted and changed by adjusting the size and relative position of the connecting chain 511 and the lifter 52.

[0042] The deflector 51 includes a connecting chain 511, the second scissor group 32 is provided with a support seat 321, one end of the connecting chain 511 is rotationally connected with the support seat 321, the other end of the connecting chain 511 is rotationally connected with the jacking end 42, the connecting chain 511 can separate the extension state of the lifting mechanism 4 and the activity state of the jacking end 42, ensure that the jacking end 42 can be guided and moved in cooperation with the connecting chain 511 when the lifting mechanism 4 extends and contracts, avoid the jacking end 42 from being affected by the extension length of the lifting mechanism 4 during the extension process, and make the jacking end 42 smoothly move along the lifting rail 521.

[0043] The support seat 321 can also play a limiting role. By setting the position of the support seat 321 on the second scissor group 32, when the platform 1 is lifted to a set height, the support seat 321 can block between the first scissor group 31 and the second scissor group 32, preventing the second scissor group 32 from continuing to rotate and cross with the second scissor group 32, and increasing the stability during structural changes.

[0044] The jacking end 42 is provided with an auxiliary wheel 421, the surface of the lifting track 521 is a curved surface, the auxiliary wheel 421 is suitable for moving along the lifting track 521 before being separated from the lifter 52, the auxiliary wheel 421 can increase the smoothness during the guiding process of the jacking end 42, and the curved surface design of the lifting track 521 cooperates with the auxiliary wheel 421 to further increase the smoothness, so that the jacking end 42 is prevented from being stuck during the moving process.

[0045] As shown in Figure 5 The support seat 321 includes a jacking side 3211, the jacking side 3211 is located on the side of the connecting chain 511 away from the fixed end 41 at the connecting position of the connecting chain 511 and the support seat 321, and the jacking side 3211 is mainly used for limiting the movement of the connecting chain 511. When the connecting chain 511 completes the guiding of the jacking end 42, the connecting chain 511 can be fixed by being abutted against the jacking side 3211 under the action of the jacking end 42, and then the lifting mechanism 4 can enter the natural lifting operation.

[0046] The connecting chain 511 is provided with a jacking portion 5111, the main structure of the jacking portion 5111 is an arc-shaped protrusion curved outwardly from the connecting chain 511, the jacking portion 5111 is suitable for being abutted against the jacking side 3211 when the jacking end 42 moves to the terminal point of the lifting track 521, and since the connecting chain 511 will bear a large pressure when being abutted against the jacking side 3211, the jacking portion 5111 can increase the structural strength of the connecting chain 511, thereby reducing the probability of the connecting chain 511 being deformed under pressure.

[0047] When the connecting chain 511 is abutted against the support seat 321, the jacking portion 5111 will first or simultaneously contact the support seat 321, so that the auxiliary wheel 421 is prevented from being deformed or damaged due to bearing too much external force, thereby affecting the cooperation between the auxiliary wheel 421 and the lifting track 521, and the strength of the connecting chain 511 can ensure the structural stability between the jacking end 42 and the support seat 321.

[0048] The jacking end 42 is provided with a connecting shaft 422, the number of the auxiliary wheels 421, the connecting chain 511 and the lifters 52 is two, the auxiliary wheels 421 and the connecting chain 511 are symmetrically arranged on the connecting shaft 422 on both sides of the jacking end 42, and the lifter 52 is arranged on the chassis 2 in cooperation with the auxiliary wheel 421. The symmetrical structure design can increase the movement stability of the jacking end 42, and can bear a larger pressure, thereby preventing the structure from being deformed or even damaged during long-term use.

[0049] The first scissor group 31 is provided with a fixed sleeve 311, the two sides of the fixed sleeve 311 are rotationally connected with the first scissor group 31, and the fixed end 41 is installed in the fixed sleeve 311. The fixed sleeve 311 can effectively utilize the empty space between the first scissor group 31 and the second scissor group 32. Since the space of the lifting platform is small when it is folded, the fixed sleeve 311 can be arranged to move the connecting structure away from the side of the fixed end 41. When the lifting platform is lifted, the fixed end 41 can not interfere with the chassis 2, avoiding collision and wear. At the same time, the connecting structure of the fixed sleeve 311 can have stronger pressure capacity compared with the traditional rotationally connected structure at the bottom of the hydraulic cylinder, and is not easy to deform and damage.

[0050] As shown in Figure 6 , the first scissor group 31 can be an inner scissor group, and the second scissor group 32 can be an outer scissor group. The first scissor group 31 and the second scissor group 32 are connected through a rotating shaft 33. The second scissor group 32 and the rotating shaft 33 are fixedly connected, and the first scissor group 31 and the rotating shaft 33 are clearance-fitted. This can increase the overall stress intensity and is less likely to deform or be damaged.

[0051] The chassis 2 is provided with a leveling mechanism 7 around. The leveling mechanism 7 includes a leveling column 71 and a leveler 72. The leveler 72 is threadedly installed on the top of the leveling column 71. The leveler 72 is adapted to be lowered below the table top 1 when the table top 1 is lowered. The leveling mechanism 7 can make the lowered or raised table top 1 approach the horizontal plane through the lifting of the leveling column 71.

[0052] As shown in Figure 7 , the first scissor group 31 is provided with a safety arm 312 on both sides. One end of the safety arm 312 is rotationally connected with the first scissor group 31. The first scissor group 31 is provided with a fixed bolt 313. The other end of the safety arm 312 is detachably connected with the first scissor group 31. The safety arm 312 is provided with a clamping groove 3121. The clamping groove 3121 can be clamped to the fixed bolt 313. In use, the safety arm 312 can be separated from the fixed bolt 313. The top of the safety arm 312 is abutted to the frame 21 of the chassis 2. The safety arm 312 is adapted to be clamped with the frame 21 of the chassis 2 to prevent the first scissor group 31 from moving. At this time, the movement of the first scissor group 31 will exert a force on the frame 21 of the chassis 2. At this time, the overall structure can be stable. The top of the safety arm 312 can be provided with a stabilizing portion 3122. The top of the frame 21 of the chassis 2 is inwardly inclined or curved. The stabilizing portion 3122 can be clamped with the frame 21 to improve the stability of the safety arm 312. After the safety arm 312 is opened, the scissor mechanism 3 can be kept in an unfolded state, which is convenient for maintenance and repair.

[0053] As shown in Figures 8 to 12As shown, the first scissor group 31 is provided with a guide wheel 314 and a brake mechanism 6, and the chassis 2 is provided with a guide rail 22. During the lifting of the table top 1, the guide wheel 314 is adapted to move along the guide rail 22, and the brake mechanism 6 is adapted to prevent the guide wheel 314 from moving on the guide rail 22 when the lifting mechanism 4 stops. The brake mechanism 6 can perform emergency braking on the guide wheel 314 when the lifting mechanism 4 fails and loses support for the scissor mechanism 3, slowing down the folding process of the scissor mechanism 3 and avoiding greater damage and loss caused by the rapid falling of the table top 1.

[0054] The connection mode of the guide wheel 314 and the guide rail 22 is a rack and pinion connection. The rack and pinion structure can increase the running stability of the guide wheel 314 and the guide rail 22. When the guide wheel 314 is braked, the guide wheel 314 can stop moving on the guide rail 22.

[0055] The brake disc 3141 is arranged on both sides of the guide wheel 314. The first scissor group 31 is provided with a cavity 315. The brake mechanism 6 is embedded in the cavity 315. The brake mechanism 6 includes a controller 61 and a brake 62. The controller 61 is adapted to make the brake 62 fit between the two brake discs 3141. The controller 61 preferably uses a cylinder, which can generate a larger force and is not easy to damage. The brake 62 can be a block structure. The main shape of the brake 62 is wedge-shaped, which can be embedded between the two brake discs 3141. With the increase of the embedding depth, the friction between the brake 62 and the brake disc 3141 can be continuously improved.

[0056] A friction layer is arranged on the gear teeth of the guide wheel 314. The brake 62 is adapted to contact the friction layer when it is fit between the two brake discs 3141, which further increases the friction and improves the braking effect. An arc-shaped groove 621 is arranged on the brake 62, which cooperates with the gear teeth of the guide wheel 314.

[0057] The movement process is as follows: when the table top 1 rises, the external power source gives the fixed end 41 (i.e. the hydraulic cylinder) hydraulic input, which acts on the jacking end 42 (i.e. the cylinder rod) to push forward. The connecting chain 511 connected to the two ends of the jacking end 42 connected to the support seat 321 can simultaneously drive the auxiliary wheels 421 with the pushing force generated by the jacking end 42 to rotate in the same direction around the rotating shaft 33 of the support seat 321. The auxiliary wheels 421 connected to the two sides of the jacking end 42 will advance and lift along the lifting rail 521 of the lifter 52. During the advancing and lifting process, the angle between the lifting mechanism 4 and the chassis 2 will continuously expand.

[0058] When the auxiliary wheels 421 are pushed to the highest point along the lifting tracks 521 of the lifters 52, the connecting chains 511 also drive the auxiliary wheels 421 to rotate from the starting point to the ending point (i.e. the highest point of the lifting tracks 521) at the same time, at this time the lifting angle of the hydraulic cylinder is increased from the original 4° to more than 12°, at this time the lifting mechanism 4 can obtain sufficient lifting angle, when the lifting mechanism 4 continues to lift, the whole lifting mechanism 4 is converted from the original external auxiliary lifting guided by the lifters 52 to directly push the scissor mechanism 3 to rise to the actual required height;

[0059] When the lifting mechanism 4 stops, the controller 61 drives the brake 62 to top between the two brake discs 3141 of the guide wheels 314 to realize the braking of the first scissor mechanism 3, at this time the whole lifting process of the lifting platform is completed;

[0060] When the table top 1 is lowered, the controller 61 drives the brake 62 to disengage the guide wheels 314, the external power source returns oil to unload pressure, enters the lowering operation of the lifting platform, the jacking end 42 is retracted and lowered, when the jacking end 42 is lowered to the highest point of the lifting tracks 521, the connecting chains 511 and the lifters 52 are triggered to move at the same time, the auxiliary wheels 421 connected to the two sides of the jacking end 42 are assisted to retract and lower the jacking end 42 through the lifting tracks 521 of the lifters 52, the connecting chains 511 fixed in the support seats 321 simultaneously drive the auxiliary wheels 421 to rotate in the same direction with the rotating shaft 33 of the support seats 321 as the center, to ensure that when the auxiliary wheels 421 fall to the lowest point of the lifting tracks 521, the jacking end 42 can be synchronized to retreat to the lowest point, at this time the whole lowering process of the lifting platform is completed.

[0061] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, the above embodiments and descriptions in the specification are only the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A low-emission elevator platform, characterized by: The table top, the base, the scissor mechanism, at least one telescopic lifting mechanism and at least one auxiliary mechanism, the scissor mechanism is arranged between the base and the table top, the lifting mechanism and the auxiliary mechanism are arranged on the scissor mechanism one by one, the scissor mechanism comprises a first scissor group and a second scissor group, the first scissor group and the second scissor group are connected to each other in a cross rotating manner, the lifting mechanism comprises a fixed end and a jacking end, the fixed end and the jacking end are rotatably connected with the first scissor group and the second scissor group respectively, the auxiliary mechanism comprises a deflector and a lifter, the deflector is movably arranged between the jacking end and the second scissor group, the lifter is arranged on the base, the lifter is provided with a lifting track, the deflector is adapted to move the jacking end along the lifting track, and the lifting track is adapted to increase the included angle between the lifting mechanism and the base. The deflector comprises a connecting chain, the second scissor group is provided with a support seat, one end of the connecting chain is rotatably connected with the support seat, and the other end of the connecting chain is rotatably connected with the jacking end. The support seat comprises a jacking side, the jacking side is located on the side of the connecting chain away from the fixed end at the connection between the connecting chain and the support seat, and the connecting chain is provided with a jacking portion adapted to abut against the jacking side when the jacking end moves to the terminal point of the lifting track.

2. A low-emission elevator landing platform as claimed in claim 1, characterized in that: The lowest lifting angle of the lifting mechanism is α, the included angle between the lifting mechanism and the base at the starting point of the lifting track is β1, and the included angle between the lifting mechanism and the base at the terminal point of the lifting track is β2, and β1≤α<β2.

3. A low-rise elevator platform as claimed in claim 1, characterized in that: The main structure of the jacking portion is an arc-shaped protrusion curved outwardly from the connecting chain.

4. A low-rise elevator platform as claimed in claim 1, characterized in that: The jacking end is provided with an auxiliary wheel, the surface of the lifting track is a curved surface, and the auxiliary wheel is adapted to move along the lifting track before being separated from the lifter.

5. A low-rise elevator platform as claimed in claim 4, characterized in that: The jacking end is provided with a connecting shaft, the number of the auxiliary wheels, the connecting chains and the lifters is two, the auxiliary wheels and the connecting chains are symmetrically arranged on the connecting shaft on both sides of the jacking end, and the lifters are arranged on the base in cooperation with the auxiliary wheels.

6. A low-rise elevator platform as claimed in claim 1, characterized in that: The first scissor group is provided with a fixed sleeve, the two sides of the fixed sleeve are rotatably connected with the first scissor group, and the fixed end is mounted and embedded in the fixed sleeve.

7. A low-emission elevator landing platform as claimed in claim 1, characterized in that: The first scissor group is provided with a guide wheel and a braking mechanism, the base is provided with a guide track, and during the lifting process of the table top, the guide wheel is adapted to move along the guide track, and the braking mechanism is adapted to stop the guide wheel from moving on the guide track when the lifting mechanism stops.

8. A low-rise elevator platform as claimed in claim 7, characterized in that: The connecting mode of the guide wheel and the guide track is a rack and pinion connection, both sides of the guide wheel are provided with brake discs, a cavity is formed in the first scissor group, the brake mechanism is embedded in the cavity, the brake mechanism comprises a controller and a brake, the controller is suitable for interference fit of the brake between the two brake discs; a friction layer is arranged on the guide wheel, and the brake is suitable for contacting the friction layer when interference fit between the two brake discs.

9. A low-rise lift platform as claimed in any one of claims 1 to 8, wherein: A leveling mechanism is arranged around the chassis, the leveling mechanism comprises a leveling column and a leveler, the leveler is screw mounted on the top of the leveling column, and the leveler is suitable for abutting below the table top when the table top is lowered; both sides of the first scissor group are provided with safety arms, one end of the safety arm is rotatably connected with the first scissor group, and the other end of the safety arm is detachably connected with the first scissor group, the safety arm is suitable for being clamped and blocked with the frame of the chassis to prevent the first scissor group from moving; the lifting mechanism comprises a hydraulic cylinder.

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