Aerial work assembly and shear fork type aerial work platform auxiliary hoisting device

Abstract

The utility model discloses a high-altitude operation assembly and a scissor type high-altitude operation platform auxiliary hoisting device, and relates to the technical field of high-altitude operation platforms, the scissor type high-altitude operation platform auxiliary hoisting device comprises a single hoisting point plate used for being connected with a hoisting rope of a hoisting device; the bottom of the hook is used for being hooked with the middle connecting rod at the lowermost part of the scissor platform when the scissor platform is hoisted; the middle shaft sleeve penetrates through the single lifting point plate, the two hooks are symmetrically distributed with the single lifting point plate as the center, and the top of each hook is arranged on the middle shaft sleeve in a sleeving mode; and the lug plate is arranged on one side of the single lifting point plate and is used for being connected with a platform lug plate at the bottom of the scissor platform when the scissor platform is lifted. According to the device, in the lifting and transferring process of the scissor platform, the working platform and the handrails of the working platform cannot be abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work platforms, and more specifically, to a scissor-type aerial work platform auxiliary lifting device and an aerial work assembly including the scissor-type aerial work platform auxiliary lifting device. Background Art

[0002] In existing technology, a scissor-type aerial work platform (hereinafter referred to as "Scissor Platform 01") is a lifting platform that uses a scissor-type structure as its extension mechanism. The scissor-type structure extends to carry personnel, tools, and materials to the work location. Scissor Platform 01 is widely used in construction, warehousing and logistics, shipbuilding, airports, interior and exterior decoration, large exhibition halls, and other fields.

[0003] The basic structure of the scissor lift platform 01 includes the chassis assembly, the extension mechanism and the working platform 02. The traditional scissor lift platform structure is designed as follows: there are 4 lifting holes 04 on the chassis assembly, such as Figures 1 to 3 As shown, in order to realize the overall lifting of the equipment, since the width of the upper working platform 02 is basically the same as the width of the lower chassis assembly, the four lifting ropes 03 will inevitably interfere with the working platform 02 during the overall lifting. During the lifting and transportation process of the scissor platform 01, the working platform 02 and its railings may be worn, deformed or even damaged, and even affect the use of the entire machine.

[0004] In summary, how to avoid causing wear to the working platform and its railings during the lifting and transportation process of the scissor platform is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present utility model is to provide a scissor-type aerial work platform auxiliary lifting device, which will not cause wear to the work platform and its railings during the lifting and transportation of the scissor-type aerial work platform.

[0006] Another object of the present utility model is to provide an aerial work assembly including the above-mentioned scissor-type aerial work platform auxiliary lifting device.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A scissor-type aerial work platform auxiliary lifting device, comprising:

[0009] A single lifting point plate, which is used to connect with the lifting rope of the lifting device;

[0010] A hook, the bottom of which is used to hook with the middle connecting rod at the bottom of the scissor-type platform when the scissor-type platform is hoisted;

[0011] An intermediate sleeve is provided through the single hanging point plate, the two hooks are symmetrically distributed with the single hanging point plate as the center, and the top of each hook is sleeved on the intermediate sleeve;

[0012] An ear plate is provided on one side of the single lifting point plate and is used to connect with the platform ear plate at the bottom of the scissor platform when the scissor platform is hoisted.

[0013] In one embodiment, the single hanging point plate is provided with two hanging holes.

[0014] In one embodiment, the ear plate is connected to the platform ear plate by means of pins or bolts.

[0015] In one embodiment, a mounting hole is provided on the top of the hook, a spacer is embedded in the mounting hole, and the spacer is sleeved on the intermediate shaft sleeve.

[0016] A high-altitude work assembly comprises: a chassis assembly, an extension mechanism arranged on the top of the chassis assembly, a working platform arranged on the top of the extension mechanism, and a scissor-type aerial work platform auxiliary lifting device as described in any of the above items, wherein the bottom of the hook of the scissor-type aerial work platform auxiliary lifting device is used to hook with the middle connecting rod at the lowest part of the extension mechanism when the extension mechanism is lifted, and the ear plate of the scissor-type aerial work platform auxiliary lifting device is used to connect with the platform ear plate of the extension mechanism when lifting the scissor platform.

[0017] In one embodiment, the auxiliary lifting device of the scissor-type aerial work platform is arranged in the middle of the extension mechanism, and a movable cover is provided in the middle of the work platform. The single lifting point plate of the auxiliary lifting device of the scissor-type aerial work platform is lifted by opening the movable cover.

[0018] In one embodiment, the center of gravity of the aerial work assembly coincides with the position of the lifting hole of the single lifting point plate.

[0019] In one embodiment, the weight of the single hanging point plate is greater than the weight of the hook, and with the hinge position of the middle shaft sleeve of the scissor-type aerial work platform auxiliary lifting device as the moment center, the torque on one side of the single hanging point plate is greater than the torque on one side of the hook.

[0020] When using the auxiliary lifting device for a scissor-type aerial work platform provided by the present invention, first, lower the scissor-type platform to its lowest position. Next, open the scissor-type platform's cover and insert the single-point lifting plate into the scissor-type platform, hooking the hook onto the middle connecting rod at the bottom of the scissor-type platform and connecting the two. The operator can then securely connect the lug plate to the platform lug plate at the bottom of the scissor-type platform to facilitate subsequent lifting operations. Finally, the lifting device's rope can be used to lift the single-point lifting plate, thereby lifting the entire scissor-type platform. This device effectively prevents interference between the lifting rope and the platform's upper structure, minimizing wear, deformation, and even damage to the platform's railings that could result from such interference. Furthermore, the lifting method using a single-point lifting plate and rope connection makes operation more convenient, saves time and effort, and improves the efficiency of lifting and transporting the entire equipment. This device can be widely used in the lifting of scissor-type aerial work platforms.

[0021] In summary, the auxiliary lifting device for the scissor-type aerial work platform provided by the utility model will not cause wear to the work platform and its railings during the lifting and transportation of the scissor-type aerial work platform.

[0022] In addition, the utility model also provides an aerial work assembly including the above-mentioned scissor-type aerial work platform auxiliary lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall hoisting of the scissor platform structure in the prior art;

[0025] Figure 2 for Figure 1 The main view;

[0026] Figure 3 for Figure 1 Side view of;

[0027] Figure 4 This is a schematic diagram of the use of the auxiliary lifting device of the scissor-type aerial work platform provided by the utility model;

[0028] Figure 5 for Figure 4 The main view;

[0029] Figure 6 for Figure 4 Side view of;

[0030] Figure 7 This is a schematic diagram of the structure of the auxiliary lifting device of the scissor-type aerial work platform;

[0031] Figure 8 for Figure 7 The main view;

[0032] Figure 9 for Figure 7 Side view of;

[0033] Figure 10 for Figure 7 A top view of

[0034] Figure 11 Schematic diagram of the hook connection between the hook and the intermediate connecting rod;

[0035] Figure 12 for Figure 11 Side view of;

[0036] Figure 13 for Figure 11 sectional view of

[0037] Figure 14 Schematic diagram of the use of the auxiliary lifting device of the scissor-type aerial work platform when the scissor platform 7 is in working condition;

[0038] Figure 15 for Figure 14 Side view of;

[0039] Figure 16 for Figure 14 A local enlarged view of point A;

[0040] Figure 17 for Figure 16 side view.

[0041] Reference numerals:

[0042] 01- scissor platform; 02- working platform; 03- lifting rope; 04- lifting hole;

[0043] 1-single lifting point plate; 2-middle shaft sleeve; 3-spacer sleeve; 4-hook; 5-ear plate; 6-latch pin; 7-scissor platform; 71-middle connecting rod; 72-movable cover plate; 8-lifting rope. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0045] The core of this utility model is to provide an auxiliary lifting device for a scissor-type aerial work platform, which will not cause wear to the work platform and its railings during the lifting and transportation of the scissor-type aerial work platform. Another core of this utility model is to provide an aerial work assembly including the auxiliary lifting device for a scissor-type aerial work platform.

[0046] Please refer to Figures 4 to 17 shown.

[0047] This specific embodiment provides a scissor-type aerial work platform auxiliary lifting device, including:

[0048] A single lifting point plate 1, which is used to connect to the lifting rope 8 of the lifting device;

[0049] The hook 4 has a bottom portion for hooking with the middle connecting rod 71 at the bottom of the scissor platform 7 when the scissor platform 7 is hoisted;

[0050] The middle sleeve 2 is provided through the single hanging point plate 1, and the two hooks 4 are symmetrically distributed with the single hanging point plate 1 as the center, and the top of each hook 4 is sleeved on the middle sleeve 2;

[0051] The ear plate 5 is provided on one side of the single lifting point plate 1 and is used to connect with the platform ear plate at the bottom of the scissor platform 7 when the scissor platform 7 is lifted.

[0052] It should be noted that when the scissor platform 7 is in operation, that is, when the scissor platform 7 is in a non-hoisting condition, the hook 4 of the auxiliary hoisting device of the scissor-type aerial work platform is disengaged from the intermediate connecting rod 71 at the bottom of the scissor platform 7; and when the scissor platform 7 is in a non-operating condition, that is, when the scissor platform 7 is in a hoisting condition, the hook 4 of the auxiliary hoisting device of the scissor-type aerial work platform is connected to the intermediate connecting rod 71 at the bottom of the scissor platform 7. The hooking and disconnecting operations of the hook 4 and the intermediate connecting rod 71 can be manually controlled by the operator on the scissor platform 7. When the hook 4 and the intermediate connecting rod 71 are disconnected, the single lifting point plate 1 can be lifted off the scissor platform 7.

[0053] It should also be noted that the auxiliary lifting device for scissor-type aerial work platforms can be used to lift the entire device and, during assembly, to lift extension mechanism components. Furthermore, a circular arc transition can be provided inside the hook groove of hook 4 to prevent wear on intermediate connecting rod 71 during hooking. Furthermore, to ensure the proper hooking of hook 4 and intermediate connecting rod 71 and the lifting efficiency of single-point lifting plate 1, both hook 4 and single-point lifting plate 1 can be constructed of metal. This allows for better force absorption and prevents deformation and damage.

[0054] During actual use, the shape, material, position, number, etc. of the single hanging point plate 1, the hook 4, the intermediate shaft sleeve 2 and the ear plate 5 can be determined according to actual conditions and actual needs.

[0055] To use the auxiliary lifting device for a scissor-type aerial work platform provided by the present invention, first, lower the scissor platform 7 to its lowest position. Then, open the cover of the scissor platform 7 and place the single-point lifting plate 1 inside the scissor platform 7, hooking the hook 4 onto the intermediate connecting rod 71 at the bottom of the scissor platform 7 and connecting the two. The operator can then securely connect the ear plate 5 to the platform ear plate at the bottom of the scissor platform 7 to facilitate subsequent lifting operations. Finally, the lifting device's rope 8 can be used to lift the single-point lifting plate 1, thereby lifting the entire scissor platform 7. This device effectively prevents interference between the rope 8 and the superstructure of the scissor platform 7, minimizing wear, deformation, and even damage to the railings of the scissor platform 7 that could result from such interference. Furthermore, the lifting method using the single-point lifting plate 1 and rope 8 makes operation more convenient, saves time and effort, and improves the efficiency of lifting and transporting the entire equipment. Therefore, this device can be widely used in the lifting of scissor-type aerial work platforms.

[0056] In summary, the auxiliary lifting device for the scissor-type aerial work platform provided by the present invention will not cause wear to the work platform and its railings during the process of lifting and transporting the scissor-type aerial work platform 7.

[0057] In one embodiment, Figure 7 and Figure 8 As shown, the single lifting point plate 1 is provided with two lifting holes. The single lifting point plate 1 (which is provided with two lifting holes) is combined with two lifting ropes 8 (each lifting hole is passed through a ceiling fan) to lift from the middle of the scissor-type platform 7, so that the lifting operation of the scissor-type platform 7 can be balanced and stable.

[0058] In one embodiment, the ear plate 5 is connected to the platform ear plate by a latch 6 or a bolt. That is, when the scissor platform 7 needs to be lifted, the operator can use the latch 6 or the bolt to fix the ear plate 5 to the platform ear plate.

[0059] In one embodiment, a mounting hole is provided on the top of the hook 4, the spacer 3 is embedded in the mounting hole, and the spacer 3 is sleeved on the intermediate shaft sleeve 2, and the structure is as follows: Figure 7 and Figure 9 As shown, the hook 4 is sleeved on the intermediate shaft sleeve 2. Moreover, by providing the spacer 3, serious wear of the mounting hole of the hook 4 and the intermediate shaft sleeve 2 can be avoided.

[0060] In addition to the aforementioned scissor-type aerial work platform auxiliary lifting device, the present invention further provides an aerial work assembly including the scissor-type aerial work platform auxiliary lifting device disclosed in the aforementioned embodiment. The aerial work assembly comprises: a chassis assembly, an extension mechanism disposed on top of the chassis assembly, a work platform disposed on top of the extension mechanism, and the aforementioned scissor-type aerial work platform auxiliary lifting device. The bottom of the hook 4 of the scissor-type aerial work platform auxiliary lifting device is used to hook with the middle connecting rod 71 at the lowest part of the extension mechanism during lifting. The ear plate 5 of the scissor-type aerial work platform auxiliary lifting device is used to connect with the platform ear plate of the extension mechanism when lifting the scissor platform 7. Please refer to the existing technology for the structures of the other parts of the aerial work assembly and will not be described in detail herein.

[0061] In one embodiment, the auxiliary lifting device for a scissor-type aerial work platform is disposed in the middle of the extension mechanism, and a movable cover 72 is provided in the middle of the work platform. The single lifting point plate 1 of the auxiliary lifting device for the scissor-type aerial work platform is lifted by opening the movable cover 72. Therefore, a movable cover 72 can be provided in the middle of the work platform, and the movable cover 72 can be opened or closed. When the auxiliary lifting device for the scissor-type aerial work platform is needed, the operator can manually open the movable cover 72, thereby facilitating the use of the auxiliary lifting device for the scissor-type aerial work platform.

[0062] In one embodiment, the center of gravity of the aerial work assembly coincides with the position of the lifting hole of the single lifting point plate 1, so that the force of the device is balanced when it is lifted and the device is prevented from being severely tilted or shaken.

[0063] In one embodiment, the weight of the single lifting point plate 1 is greater than the weight of the hook 4. Taking the hinge position of the middle shaft sleeve 2 of the scissor-type aerial work platform auxiliary lifting device as the moment center, the torque on one side of the single lifting point plate 1 is greater than the torque on one side of the hook 4, so that when the entire machine is not hoisted, the hook 4 can easily detach from the middle connecting rod 71, thereby not affecting the normal use of the equipment.

[0064] In addition, it should be noted that the orientation or position relationship indicated by "upper" and "lower" in the present invention is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of simplifying the description and facilitating understanding, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by this utility model is within the scope of protection of this utility model and will not be described in detail here.

[0066] The above is a detailed introduction to the aerial work assembly and scissor-type aerial work platform auxiliary lifting device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A scissor-type aerial work platform auxiliary lifting device, characterized in that: include: A single lifting point plate (1) for connecting to a lifting rope (8) of a lifting device; A hook (4), the bottom of which is used to hook with the middle connecting rod (71) at the bottom of the scissor-type platform (7) when the scissor-type platform (7) is hoisted; An intermediate shaft sleeve (2) is provided through the single hanging point plate (1), and the two hooks (4) are symmetrically distributed with the single hanging point plate (1) as the center, and the top of each hook (4) is sleeved on the intermediate shaft sleeve (2); An ear plate (5) is provided on one side of the single lifting point plate (1) and is used to connect to the platform ear plate at the bottom of the scissor-type platform (7) when the scissor-type platform (7) is lifted.

2. The auxiliary lifting device for a scissor-type aerial work platform according to claim 1, characterized in that: The single hanging point plate (1) is provided with two hanging holes.

3. The auxiliary lifting device for a scissor-type aerial work platform according to claim 1, characterized in that: The ear plate (5) is connected to the platform ear plate via a latch (6) or a bolt.

4. The auxiliary lifting device for a scissor-type aerial work platform according to any one of claims 1 to 3, characterized in that: A mounting hole is provided on the top of the hook (4), a spacer sleeve (3) is embedded in the mounting hole, and the spacer sleeve (3) is sleeved on the intermediate shaft sleeve (2).

5. A high-altitude working assembly, characterized in that: include: A chassis assembly, an extension mechanism provided on the top of the chassis assembly, a working platform provided on the top of the extension mechanism, and a scissor-type aerial work platform auxiliary lifting device as described in any one of claims 1 to 4 above, wherein the bottom of the hook (4) of the scissor-type aerial work platform auxiliary lifting device is used to be hooked with the middle connecting rod (71) at the lowest part of the extension mechanism when the extension mechanism is lifted, and the ear plate (5) of the scissor-type aerial work platform auxiliary lifting device is used to be connected with the platform ear plate of the extension mechanism when the scissor platform (7) is lifted.

6. The aerial work assembly according to claim 5, characterized in that: The auxiliary lifting device of the scissor-type aerial work platform is arranged in the middle of the extension mechanism, and a movable cover plate (72) is provided in the middle of the working platform. The single lifting point plate (1) of the auxiliary lifting device of the scissor-type aerial work platform is lifted by opening the movable cover plate (72).

7. The aerial work assembly according to claim 6, characterized in that: The center of gravity of the aerial work assembly coincides with the position of the lifting hole of the single lifting point plate (1).

8. The aerial work assembly according to claim 7, characterized in that: The weight of the single hanging point plate (1) is greater than the weight of the hook (4), and with the hinged position of the middle shaft sleeve (2) of the scissor-type aerial work platform auxiliary lifting device as the moment center, the torque on one side of the single hanging point plate (1) is greater than the torque on one side of the hook (4).

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