A linkage lifting device

Abstract

The present application relates to a linkage lifting device, which includes: a work platform, a movable fence assembly, a material elevator, and a controller. The work platform is provided with a material delivery port; the movable fence assembly includes a drive member fixed to the work platform and a movable fence body provided at the material delivery port, the drive member being connected to the movable fence body and being used to drive the movable fence body to move relative to the work platform to control the opening or closing of the material delivery port; the material elevator is provided on one side of the work platform; the controller is connected to the drive member and the material elevator; wherein the movable fence body and the material elevator are configured such that when the movable fence body moves relative to the work platform to open the material delivery port, the material elevator rises to a first position; and when the movable fence body moves relative to the work platform to close the material delivery port, the material elevator descends to a second position, the first position being higher than the second position. The present invention ensures the safety of personnel on aerial work platforms.

Description

Technical Field

[0001] The present application relates to the field of automobile manufacturing, and in particular to a linkage lifting device. Background Art

[0002] In welding workshops, material lifting platforms are widely used. Since the operators' working height is relatively high, their working area is on the platform, while the required materials are transported outside the platform, the material box needs to be lifted to a height that the operators can touch using a small lift.

[0003] For safety reasons, a safety fence is installed between the material conveyor elevator and the platform. There are many types of fences in welding workshops, mainly made of different materials such as plexiglass, steel, and aluminum alloy. Regardless of the type, fixed fences are currently the most commonly used. Operators must reach over the fence to retrieve parts from the elevator's material bin, which is cumbersome. Furthermore, when retrieving distant parts, operators must extend their arms far, causing their upper body to tilt at a significant angle, posing a significant safety risk and the risk of falling from height. Summary of the Invention

[0004] The present application provides a linkage lifting device, which can solve the problem in related technologies that workers have troublesome operations and high safety risks when picking up items.

[0005] In the first aspect, an embodiment of the present application provides a linkage lifting device, which includes: a working platform, a movable fence assembly, a material elevator and a controller, wherein a material conveying port is provided on the working platform; the movable fence assembly includes a driving member fixed to the working platform and a movable fence body arranged at the material conveying port, the driving member is connected to the movable fence body, and is used to drive the movable fence body to move relative to the working platform to control the opening or closing of the material conveying port; the material elevator is arranged on one side of the working platform; the controller is connected to the driving member and the material elevator; wherein, the movable fence body and the material elevator are configured as follows: when the movable fence body moves relative to the working platform to open the material conveying port, the material elevator rises to a first position, and when the movable fence body moves relative to the working platform to close the material conveying port, the material elevator descends to a second position, and the first position is higher than the second position. By setting up a movable fence body in conjunction with a controller to control the drive part and the material elevator, it can be achieved that when the movable fence body moves relative to the working platform to open the material conveying port, the material elevator rises to the first position, and when the movable fence body moves relative to the working platform to close the material conveying port, the material elevator descends to the second position, thereby ensuring the safety of personnel on the aerial work platform to the greatest extent and providing convenience for personnel to take and place parts.

[0006] In some embodiments, the movable fence assembly further includes: a guide rail, the guide rail is fixed on the working platform, and the movable fence body is slidably connected to the guide rail.

[0007] In some embodiments, limiting members are provided on both sides of the movable fence body, and the limiting members are movably connected to the inside of the guide rail.

[0008] In some embodiments, the limiting member includes: front and rear clamping wheels and side clamping wheels, the front and rear clamping wheels are provided on the movable fence body and are rollingly connected to the first wall plate of the guide rail;

[0009] The side clamping wheel is arranged on the movable fence body and is rollingly connected to the second wall plate of the guide rail.

[0010] In some embodiments, the guide rail is arranged vertically;

[0011] When the movable fence body descends to the third position along the guide rail, the material elevator rises to the first position. When the movable fence body ascends to the fourth position along the guide rail, the material elevator descends to the second position. The fourth position is higher than the third position.

[0012] In some embodiments, fixed fences are fixedly connected to both sides of the work platform, and the material conveying port is arranged between the two fixed fences.

[0013] In some embodiments, the guide rail is horizontally arranged on the working platform;

[0014] When the movable fence body moves along the guide rail to open the material conveying port, the material elevator rises to the first position, and when the movable fence body moves along the guide rail to close the material conveying port, the material elevator descends to the second position.

[0015] In some embodiments, the movable fence assembly further comprises a fixing frame, the fixing frame is fixed to the working platform, and the driving member is mounted on the fixing frame;

[0016] The driving member includes a first cylinder.

[0017] In some embodiments, a connecting block is provided between the output end of the first cylinder and the movable fence body.

[0018] In some embodiments, the material elevator includes: a base, a limiting bracket, a movable bracket, a second cylinder and a lifting platform, one end of the limiting bracket is hinged to the base; one end of the movable bracket is slidably connected to the base, and the middle part of the movable bracket is hinged to the middle part of the limiting bracket; the lifting platform is hinged between the top of the movable bracket and the top of the limiting bracket, one end of the second cylinder is hinged to the base, and the other end is hinged to the lifting platform.

[0019] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0020] An embodiment of the present application provides a linkage lifting device. By setting a movable fence body and cooperating with a controller to control the driving part and the material elevator, it can be achieved that when the movable fence body moves relative to the working platform to open the material conveying port, the material elevator rises to a first position, and when the movable fence body moves relative to the working platform to close the material conveying port, the material elevator descends to a second position, thereby ensuring the safety of personnel on the aerial work platform to the greatest extent and providing convenience for personnel to take and place parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure when the material delivery port provided in the embodiment of the present application is closed;

[0023] Figure 2 This is a schematic diagram of the overall structure when the material delivery port provided in the embodiment of the present application is open;

[0024] Figure 3 A schematic diagram of a movable fence assembly provided in an embodiment of the present application;

[0025] Figure 4 Schematic diagram of the limiting member provided in an embodiment of the present application.

[0026] In the figure: 1. Working platform; 2. Fixed fence; 3. Movable fence assembly; 30. Movable fence body; 31. Guide rail; 310. First wall panel; 311. Second wall panel; 32. Connecting block; 33. Fixed frame; 34. First cylinder; 35. Limiting member; 350. Front and rear clamping wheels; 351. Side clamping wheel; 4. Material elevator; 40. Base; 41. Lifting platform; 42. Limiting bracket; 43. Movable bracket; 44. Second cylinder; 5. Controller. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The embodiment of the present application provides a linkage lifting device, which can solve the problem in the related art that the operation is troublesome and the safety risk is high when the operator picks up the items.

[0029] See also Figures 1 to 4 , an embodiment of the present application provides a linkage lifting device, which includes: a working platform 1, a movable fence assembly 3, a material elevator 4 and a controller 5, and the working platform 1 is provided with a material conveying port; the movable fence assembly 3 includes a driving member fixed to the working platform 1 and a movable fence body 30 arranged at the material conveying port, the driving member is connected to the movable fence body 30, and is used to drive the movable fence body 30 to move relative to the working platform 1 to control the opening or closing of the material conveying port; the material elevator 4 is arranged on one side of the working platform 1; the controller 5 is connected to the driving member and the material elevator 4; wherein, the movable fence body 30 and the material elevator 4 are configured as follows: when the movable fence body 30 moves relative to the working platform 1 to open the material conveying port, the material elevator 4 rises to a first position, and when the movable fence body 30 moves relative to the working platform 1 to close the material conveying port, the material elevator 4 descends to a second position, and the first position is higher than the second position.

[0030] In the present application, by setting a movable fence body 30 and cooperating with the controller 5 to control the driving part and the material elevator 4, it can be achieved that when the movable fence body 30 moves relative to the working platform 1 to open the material conveying port, the material elevator 4 rises to the first position, and when the movable fence body 30 moves relative to the working platform 1 to close the material conveying port, the material elevator 4 descends to the second position, thereby ensuring the safety of the personnel on the aerial work platform 1 to the greatest extent and providing convenience for the operators to take and place parts.

[0031] Among them, the controller 5 is provided with a first button and a second button. When the first button is pressed, the movable fence body 30 moves relative to the working platform 1 to open the material conveying port, and the material elevator 4 rises to the first position; when the second button is pressed, the movable fence body 30 moves relative to the working platform 1 to close the material conveying port, and the material elevator 4 descends to the second position.

[0032] When an operator standing on the work platform 1 needs a part, they press the first button on the controller 5, which causes the material elevator 4 to rise, bringing the material on the elevator 4 within reach of the operator. Simultaneously, the movable fence body 30 automatically moves, opening the material delivery port and providing access for the operator. When the material box runs out of parts or needs to be replaced, the operator presses the second button on the controller 5, causing the material elevator 4 to descend, bringing the material box on the elevator 4 down with it. Simultaneously, the movable fence body 30 automatically moves, closing the material delivery port and forming a barrier to protect the operator.

[0033] It should be noted that, in this embodiment, the first position may refer to the position of the material elevator 4 when the top surface of the material elevator 4 is flush with the working platform 1; it may also be determined based on actual conditions. When the material elevator 4 rises to the first position, there is a first distance in the height direction between the top surface of the material platform and the working platform 1. The first distance may be adjusted manually to facilitate the operator to stand on the working platform 1 and take the parts in the material box.

[0034] The second position can be the position of the material elevator 4 when it descends to its lowest point and cannot move further downward; it can also be the position of the material elevator 4 when it descends to a second distance from the ground. The second distance can also be adjusted manually to facilitate operators to place parts on the material elevator 4 from the ground.

[0035] On the basis of the above embodiment, in this embodiment, the movable fence assembly 3 further includes: a guide rail 31 , the guide rail 31 is fixed on the working platform 1 , and the movable fence body 30 is slidably connected to the guide rail 31 .

[0036] The movable fence body 30 can be set in a variety of ways:

[0037] In some possible embodiments, the guide rail 31 is arranged vertically; when the movable fence body 30 descends to the third position along the guide rail 31, the material elevator 4 rises to the first position, and when the movable fence body 30 rises to the fourth position along the guide rail 31, the material elevator 4 descends to the second position.

[0038] In this embodiment, since the guide rail 31 is vertically arranged, the movable fence body 30 can slide up and down along the guide rail 31.

[0039] When the movable fence body 30 descends to the third position, the material conveying port is opened. At this time, the top of the movable fence body 30 can be flush with the top of the work platform 1 or lower than the top of the work platform 1, so as to facilitate the removal of parts from the material elevator 4. When the movable fence body 30 ascends to the fourth position, the material conveying port is closed. At this time, the top of the movable fence body 30 is higher than the top of the work platform 1. The safe distance between the top of the movable fence body 30 and the top of the work platform 1 needs to be determined according to actual conditions.

[0040] In this embodiment, the length of the movable fence body 30 can be set to be the same as the length of the working platform 1;

[0041] Alternatively, the length of the movable fence body 30 is set to be smaller than the length of the working platform 1, and fixed fences 2 are fixedly connected on both sides of the working platform 1, and the material conveying port is set between the two fixed fences 2. That is to say, the movable fence body 30 is set between the two fixed fences 2, and the movable fence body 30 and the fixed fences 2 together constitute the enclosure on one side of the working platform 1. In this case, even if the movable fence body 30 is lowered to the third position to open the material conveying port, there is still a fixed fence 2 on the side of the working platform 1 as a safety protection structure to ensure the safety of the workers during operation. Therefore, in general, the setting method of setting the length of the movable fence body 30 to be smaller than the length of the working platform 1 and fixing the fixed fences 2 on both sides of the working platform 1 is the preferred setting method.

[0042] In other possible embodiments, the guide rail 31 is horizontally arranged on the working platform 1; when the movable fence body 30 moves along the guide rail 31 to open the material conveying port, the material elevator 4 rises to the first position, and when the movable fence body 30 moves along the guide rail 31 to close the material conveying port, the material elevator 4 descends to the second position.

[0043] Specifically, in this embodiment, to ensure the safety of workers during operation, guide rails 31 are provided at both ends of one side of the work platform 1, and movable fence bodies 30 are slidably connected to the corresponding guide rails 31. In this case, when the two movable fence bodies 30 move away from each other, the material conveying port opens, and at the same time, the material elevator 4 rises to the first position; when the two movable fence bodies 30 move toward each other, the material conveying port closes, and at the same time, the material elevator 4 descends to the second position.

[0044] It should be noted that the above embodiments are only a variety of possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto. When using, you can select a suitable implementation as needed.

[0045] On the basis of the above embodiments, in this embodiment, in order to improve the stability of the movable fence body 30 during movement, limiting members 35 are provided on both sides of the movable fence body 30 , and the limiting members 35 are movably connected to the inside of the guide rail 31 .

[0046] For details, see Figure 4 As shown, the guide rail 31 includes a first wall panel 310 and second wall panels 311 fixed on both sides of the first wall panel 310, and the first wall panel 310 and the second wall panel 311 form a U-shaped structure; the limiting member 35 includes: front and rear clamping wheels 350 and side clamping wheels 351, the front and rear clamping wheels 350 are provided on the movable fence body 30, and are in rolling connection with the first wall panel 310 of the guide rail 31; the side clamping wheels 351 are provided on the movable fence body 30, and are in rolling connection with the second wall panel 311 of the guide rail 31. The connecting ends of the front and rear clamping wheels 350 and the side clamping wheels 351 are fixed to the movable fence body 30, and the front and rear clamping wheels 350 and the side clamping wheels 351 all roll in the guide rail 31, restricting the end of the movable fence in the guide rail 31, and ensuring that the movable fence body 30 moves linearly along the movable fence body 30.

[0047] On the basis of the above embodiment, in this embodiment, the movable fence assembly 3 further includes a fixing frame 33 , the fixing frame 33 is fixed to the working platform 1 , and the driving member is installed on the fixing frame 33 .

[0048] The fixing frame 33 is fixedly connected to the working platform 1 to provide support for the driving member, ensuring the stability of the driving member during operation, thereby ensuring that the movable fence body 30 remains stable when the driving member drives the movable fence body 30 to move. The shape of the fixing frame 33 is not limited, as long as it ensures stability.

[0049] In some possible embodiments, the driving member includes a first cylinder 34. The fixed end of the first cylinder 34 is fixed to a fixed frame 33. In this embodiment, the output shaft of the first cylinder 34 passes through the fixed frame 33 and is slidably connected to the fixed frame 33. A connecting block 32 is provided between the output end of the first cylinder 34 and the movable fence body 30. After passing through the fixed frame 33, the output shaft of the first cylinder 34 is connected and fixed to the movable fence body 30 via the connecting block 32. When the output shaft of the first cylinder 34 is extended or retracted, the movable fence body 30 moves along the length of the first cylinder 34.

[0050] In other possible embodiments, the drive element includes a motor, a screw, and a threaded seat. The motor is fixed to a fixed frame 33. The screw is fixed to one end of the motor output shaft. The threaded seat is threadedly connected to the screw, and the movable fence body 30 is fixed to the threaded seat. When the motor drives the screw to rotate, the threaded seat drives the movable fence body 30 to move along the length of the screw.

[0051] The above embodiments are merely multiple possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

[0052] On the basis of the above embodiments, in this embodiment, the material elevator 4 includes: a base 40, a limiting bracket 42, a movable bracket 43 and a lifting platform 41, one end of the limiting bracket 42 is hinged to the base 40; one end of the movable bracket 43 is slidably connected to the base 40, and the middle part of the movable bracket 43 is hinged to the middle part of the limiting bracket 42; the lifting platform 41 is hinged between the top of the movable bracket 43 and the top of the limiting bracket 42; a second cylinder 44, one end of the second cylinder 44 is hinged to the base 40, and the other end is hinged to the lifting platform 41.

[0053] In this embodiment, a base 40 is positioned on one side of the work platform 1 and below the work platform 1, providing space for the lifting platform 41 to rise and fall. A limit bracket 42 and a movable bracket 43 are provided on both sides of the inner wall of the base 40. The limit bracket 42 and movable bracket 43 on each side intersect and are hingedly connected at the middle. The movable bracket 43 is slidably connected to the base 40, and the limit bracket 42 is hingedly connected to the base 40. When the output shaft of the second cylinder 44 extends or retracts to drive the lifting platform 41 up or down, one end of the movable bracket 43 slides on the base 40, while one end of the limit bracket 42 rotates about the intersection with the base 40.

[0054] The controller 5 is connected to the first cylinder 34 and the second cylinder 44. By providing a movable fence body 30 and cooperating with the material elevator 4, when the second cylinder 44 drives the lifting platform 41 to a high position, the first cylinder 34 drives the movable fence body 30 to automatically move, opening the material delivery port. When the second cylinder 44 drives the lifting platform 41 to a low position, the first cylinder 34 drives the movable fence body 30 to automatically move, closing the material delivery port. This maximizes the safety of personnel on the aerial work platform 1 and provides convenience for personnel in retrieving and placing parts.

[0055] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0056] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0057] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A linkage lifting device, characterized in that: It includes: An operating platform (1), wherein the operating platform (1) is provided with a material conveying port; A movable fence assembly (3), the movable fence assembly (3) comprising a driving member fixed to the working platform (1) and a movable fence body (30) arranged at the material conveying port, the driving member being connected to the movable fence body (30) and being used to drive the movable fence body (30) to move relative to the working platform (1) to control the opening or closing of the material conveying port; A material elevator (4), wherein the material elevator (4) is arranged on one side of the working platform (1); a controller (5), the controller (5) being connected to the driving member and the material hoist (4); The movable fence body (30) and the material elevator (4) are configured such that when the movable fence body (30) moves relative to the working platform (1) to open the material conveying port, the material elevator (4) rises to a first position; and when the movable fence body (30) moves relative to the working platform (1) to close the material conveying port, the material elevator (4) descends to a second position, wherein the first position is higher than the second position.

2. The linkage lifting device according to claim 1, characterized in that: The movable fence assembly (3) further comprises a guide rail (31), wherein the guide rail (31) is fixed on the working platform (1), and the movable fence body (30) is slidably connected to the guide rail (31).

3. The linkage lifting device according to claim 2, characterized in that: Limiting members (35) are provided on both sides of the movable fence body (30), and the limiting members (35) are movably connected to the inside of the guide rail (31).

4. The linkage lifting device according to claim 3, characterized in that: The limiting member (35) comprises: Front and rear clamping wheels (350), the front and rear clamping wheels (350) are arranged on the movable fence body (30) and are rollingly connected to the first wall plate (310) of the guide rail (31); A side clamping wheel (351) is provided on the movable fence body (30) and is rollingly connected to the second wall plate (311) of the guide rail (31).

5. The linkage lifting device according to claim 2, characterized in that: The guide rail (31) is arranged vertically; When the movable fence body (30) descends to the third position along the guide rail (31), the material elevator (4) rises to the first position; when the movable fence body (30) rises to the fourth position along the guide rail (31), the material elevator (4) descends to the second position, and the fourth position is higher than the third position.

6. The linkage lifting device according to claim 5, characterized in that: Fixed fences (2) are fixedly connected to both sides of the working platform (1), and the material conveying port is arranged between the two fixed fences (2).

7. The linkage lifting device according to claim 2, characterized in that: The guide rail (31) is horizontally arranged on the working platform (1); When the movable fence body (30) moves along the guide rail (31) to open the material conveying port, the material elevator (4) rises to a first position; when the movable fence body (30) moves along the guide rail (31) to close the material conveying port, the material elevator (4) descends to a second position.

8. The linkage lifting device according to claim 1, characterized in that: The movable fence assembly (3) further comprises a fixing frame (33), the fixing frame (33) is fixed to the working platform (1), and the driving member is mounted on the fixing frame (33); The driving member includes a first cylinder (34).

9. The linkage lifting device according to claim 8, characterized in that: A connecting block (32) is provided between the output end of the first cylinder (34) and the movable fence body (30).

10. The linkage lifting device according to claim 1, wherein: The material elevator (4) comprises: Base (40); a limiting bracket (42), one end of the limiting bracket (42) being hinged to the base (40); A movable bracket (43), one end of the movable bracket (43) is slidably connected to the base (40), and the middle portion of the movable bracket (43) is hinged to the middle portion of the limiting bracket (42); A lifting platform (41), wherein the lifting platform (41) is hinged between the top end of the movable bracket (43) and the top end of the limiting bracket (42); A second cylinder (44), one end of the second cylinder (44) is hinged to the base (40), and the other end is hinged to the lifting platform (41).

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