Double-scissor lifting platform

Abstract

The utility model provides a double-scissor lifting platform. The double-scissor lifting platform comprises a bottom frame, a lifting mechanism and a lifting mechanism, the top frame is located above the bottom frame in the height direction; the first scissor fork assembly comprises two groups of first scissor frames which are symmetrically arranged at intervals, one sides of the first scissor frames are hinged to the top frame and the bottom frame respectively, and the other sides of the first scissor frames are slidably connected with the top frame and the bottom frame through rollers; the second scissor fork assembly comprises two groups of second scissor frames which are symmetrically arranged at intervals, the lower ends of one sides of the second scissor frames are hinged to the bottom frame, the upper ends of the second scissor frames are connected with the top frame in a sliding mode, and the other sides of the second scissor frames are connected with the top frame and the bottom frame in a sliding mode through rolling wheels. According to the double-scissor lifting platform, when stress unbalance loading occurs, the situation of clamping force cannot occur, the stress state in the lifting process can be obviously improved, the lifting process is safer, and the service life can be longer.

Description

Technical Field

[0001] The utility model relates to a double scissors lifting platform. Background Art

[0002] Existing lifting platforms usually have scissor lifts with one end of the scissor fork as a fixed end and the other end as a roller. This design will also be used when using a side-by-side double scissor lift. However, since both ends of the entire lifting platform are fixed, due to the manufacturing error of the scissors, the two fixed ends will not go straight up and down as ideal, but may move closer or farther away during the lifting process. At this time, the upper frame will be pulled or squeezed by the fixed end, resulting in additional horizontal force on the upper frame and the fixed end, affecting the life of the equipment and the stability of operation.

[0003] In view of this, it is necessary to improve the existing double scissor lift to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a double scissors lifting platform to solve the problem that the upper frame of the existing lifting platform is pulled or squeezed by the fixed end.

[0005] In order to achieve the above-mentioned object, the utility model provides a double scissors lift platform, the double scissors lift platform comprising:

[0006] chassis;

[0007] A top frame, located above the bottom frame in the height direction;

[0008] A first scissor-fork assembly, the first scissor-fork assembly comprising two groups of first scissor frames symmetrically and spaced apart, one side of the first scissor frame being hinged to the top frame and the bottom frame respectively, and the other side being slidably connected to the top frame and the bottom frame via rollers;

[0009] The second scissors-fork assembly comprises two sets of second scissors frames which are symmetrically and spaced apart, wherein the lower end of one side of the second scissors frame is hinged to the base frame, the upper end is slidably connected to the top frame, and the other side is slidably connected to the top frame and the base frame via rollers.

[0010] As a further improvement of the present invention, one side of the second scissors frame hinged to the base frame is located in a direction away from the first scissors fork assembly, and one side of the first scissors frame hinged to the base frame is located in a direction away from the second scissors fork assembly.

[0011] As a further improvement of the present invention, the first scissors frame is hinged to the top frame and the bottom frame via a first rotating shaft; and / or the second scissors frame is hinged to the bottom frame via a second rotating shaft.

[0012] As a further improvement of the present utility model, the first scissors frame and / or the second scissors frame are slidably connected to the top frame and the bottom frame through rollers.

[0013] As a further improvement of the present utility model, slide rails for the rollers to slide are provided on the top frame and the bottom frame, and the slide rails extend in the horizontal direction.

[0014] As a further improvement of the present utility model, the first scissors frame includes two first scissor forks, and the first scissor fork assembly further includes a first connecting shaft, and the first connecting shaft is hinged between the two first scissor forks of the two groups of the first scissors frames.

[0015] As a further improvement of the present utility model, the first scissor fork assembly further includes a first hydraulic component, and the first hydraulic component is hinged to at least one first scissor fork of each group of the first scissors frames to drive the first scissors frame to open and close.

[0016] As a further improvement of the present utility model, the second scissors frame includes two second scissor forks, and the second scissor fork assembly further includes a second connecting shaft, and the second connecting shaft is hinged between the two second scissor forks of the two groups of the second scissors frames.

[0017] As a further improvement of the present utility model, the second scissor fork assembly further includes a second hydraulic component, and the second hydraulic component is hinged to at least one second scissor fork of each group of the second scissors frames to drive the second scissors frame to open and close.

[0018] The beneficial effects of the present utility model are as follows: For the double-scissors lifting table of the present utility model, by arranging rollers at the upper ends of the second scissors frames and making them slidably connected to the top frame, when there is an eccentric load, the situation of uneven force will not occur, and the stress state during the lifting process will be significantly improved, making the lifting process safer and the service life longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 is a schematic structural diagram of the double-scissors lifting table of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] As Figure 1 shown, the double-scissor lifting table 100 of the present utility model includes a bottom frame 1, a top frame 2, a first scissor assembly 3, and a second scissor assembly 4.

[0025] The bottom frame 1 is fixed on the ground. The top frame 2 is located above the bottom frame 1 in the height direction and is arranged parallel to the ground. The top frame 2 is used to place the item to be lifted.

[0026] The first scissor assembly 3 includes two groups of first scissor frames 31 that are symmetrically and spaced apart, a first connecting shaft 32, and a first hydraulic component 33.

[0027] Each first scissor frame 31 includes two first scissors 34. The first connecting shaft 32 is hinged between the two first scissors 34 of the two groups of first scissor frames 31, so that the two first scissors 34 in the same group can open and close. The opening and closing of the first scissors 34 can drive the top frame 2 to approach and move away from the bottom frame 1.

[0028] One side of the first scissors frame 31 is respectively hinged to the top frame 2 and the bottom frame 1, and the other side is slidably connected to the top frame 2 and the bottom frame 1 through rollers 11. When the first scissor fork 34 opens and closes, the side of the first scissors frame 31 hinged to the top frame 2 and the bottom frame 1 rotates relative to the top frame 2 and the bottom frame 1, while the other side slides relative to the top frame 2 and the bottom frame 1 through the rollers 11, thereby realizing the opening and closing of the first scissor fork 34 and driving the lifting of the top frame 2.

[0029] The first hydraulic member 33 is hinged to at least one first scissor fork 34 of each group of the first scissors frames 31 to drive the opening and closing of the first scissors frames 31.

[0030] The second scissor fork assembly 4 includes two groups of second scissors frames 41, second connecting shafts 42 and second hydraulic members 43 that are symmetrically and spaced apart.

[0031] Each second scissors frame 41 includes two second scissor forks 44. The second connecting shaft 42 is hinged between the two second scissor forks 44 of the two groups of second scissors frames 41, and enables the two second scissor forks 44 in the same group to open and close. The opening and closing of the second scissor forks 44 can drive the top frame 2 to approach and move away from the bottom frame 1.

[0032] The lower end of one side of the second scissors frame 41 is hinged to the bottom frame 1, and the upper end is slidably connected to the top frame 2. The other side is slidably connected to the top frame 2 and the bottom frame 1 through rollers 11. When the second scissor fork 44 opens and closes, the lower end of one side of the second scissors frame 41 rotates relative to the bottom frame 1, and the rollers 11 at the upper end are movable, so that there will be no abnormal force, and the stress state during the lifting process will be significantly improved, making the lifting process safer and the service life longer; while the other side slides relative to the top frame 2 and the bottom frame 1 through the rollers 11, thereby realizing the opening and closing of the second scissor fork 44 and driving the lifting of the top frame 2.

[0033] The second hydraulic member 43 is hinged to at least one second scissor fork 44 of each group of the second scissors frames 41 to drive the opening and closing of the second scissors frames 41.

[0034] In this embodiment, the control device controls the first hydraulic member 33 and the second hydraulic member 43 to work synchronously to drive the opening and closing of the first scissors frames 31 and the second scissors frames 41 simultaneously.

[0035] The first scissors frame 31 is hinged to the top frame 2 and the bottom frame 1 through a first rotating shaft 35; and / or the second scissors frame 41 is hinged to the bottom frame 1 through a second rotating shaft 45. Fixed blocks 13 are provided on the bottom frame 1 and the top frame 2 for rotational cooperation with the first rotating shaft 35 and the second rotating shaft 45.

[0036] The first scissors frame 31 and / or the second scissors frame 41 are slidably connected to the top frame 2 and the bottom frame 1 through rollers 11. Slide rails 12 for the rollers 11 to slide are provided on the top frame 2 and the bottom frame 1, and the slide rails 12 extend in the horizontal direction. When the first scissors frame 31 and the second scissors frame 41 are opened and closed, the rollers 11 roll within the slide rails 12.

[0037] One side of the second scissors frame 41 hinged to the bottom frame 1 is located in a direction away from the first scissors fork assembly 3, and one side of the first scissors frame 31 hinged to the bottom frame 1 is located in a direction away from the second scissors fork assembly 4.

[0038] For the double-scissors lifting platform 100 of the present utility model, by arranging rollers 11 at the upper ends of the second scissors frames 41 and slidably connecting them to the top frame 2, when there is an eccentric load, the situation of uneven force will not occur, and the stress state during the lifting process will be significantly improved, making the lifting process safer and the service life longer.

[0039] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0040] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A double-scissor lifting table, characterized in that: The double scissors lifting table includes: A chassis; A top frame, located above the chassis in the height direction; A first scissor fork assembly, the first scissor fork assembly includes two sets of first scissor frames that are symmetrically and spaced apart, one side of each first scissor frame is respectively hinged to the top frame and the chassis, and the other side is slidably connected to the top frame and the chassis through rollers; A second scissor fork assembly, the second scissor fork assembly includes two sets of second scissor frames that are symmetrically and spaced apart, the lower end of one side of each second scissor frame is hinged to the chassis, the upper end is slidably connected to the top frame, and the other side is slidably connected to the top frame and the chassis through rollers.

2. The double-scissor lifting table according to claim 1, wherein: The side of the second scissor frame hinged to the chassis is located in a direction away from the first scissor fork assembly, and the side of the first scissor frame hinged to the chassis is located in a direction away from the second scissor fork assembly.

3. The double scissors lifting table according to claim 1, characterized in that: The first scissor frame is hinged to the top frame and the chassis through a first rotating shaft; and / or the second scissor frame is hinged to the chassis through a second rotating shaft.

4. The double-scissor lift table according to claim 1, wherein: The first scissor frame and / or the second scissor frame is slidably connected to the top frame and the chassis through rollers.

5. The double-scissor lifting platform according to claim 4, wherein: Sliding rails for the rollers to slide are provided on the top frame and the chassis, and the sliding rails extend in the horizontal direction.

6. The double-scissor lifting platform according to claim 1, wherein: The first scissor frame includes two first scissor forks, and the first scissor fork assembly further includes a first connecting shaft, and the first connecting shaft is hinged between the two first scissor forks of the two sets of first scissor frames.

7. The double-scissor lifting table according to claim 6, characterized in that: The first scissor fork assembly further includes a first hydraulic component, and the first hydraulic component is hinged to at least one first scissor fork of each set of first scissor frames to drive the first scissor frame to open and close.

8. The double scissors lifting table according to claim 1, characterized in that: The second scissor frame includes two second scissor forks, and the second scissor fork assembly further includes a second connecting shaft, and the second connecting shaft is hinged between the two second scissor forks of the two sets of second scissor frames.

9. The double-scissor lifting platform according to claim 8, wherein: The second scissor fork assembly further includes a second hydraulic component, and the second hydraulic component is hinged to at least one second scissor fork of each set of second scissor frames to drive the second scissor frame to open and close.

Images