High-strength shear fork support for shear fork type aerial work platform

Abstract

The utility model relates to a high-strength scissors fork support for a scissors fork type aerial work platform, which comprises two scissors fork single frames which are arranged front and back, each scissors fork single frame comprises a plurality of X-shaped fork frames, and each X-shaped fork frame comprises an outer fork plate and an inner fork plate which are hinged together through a central pin shaft. The connecting ends of the outer fork plates and the inner fork plates corresponding to every two vertically adjacent X-shaped fork frames are hinged through side pin shafts, one end of the lowermost X-shaped fork frame and one end of the uppermost X-shaped fork frame are each provided with a pin shaft base connected with a frame, the other end of the lowermost X-shaped fork frame and the other end of the uppermost X-shaped fork frame are each provided with a pin roller installed on the frame in a sliding mode, and reinforcing supporting rods are hinged to the outer ends of the outer fork plates and the outer ends of the inner fork plates of the X-shaped fork frames. The two reinforcing supporting rods are hinged through an auxiliary pin shaft, and the reinforcing supporting rods are arranged on the two sides of the shear fork single frame in a staggered mode; and a lifting driving mechanism is arranged between the front and rear shear fork single frames. Through the auxiliary supporting effect of the reinforcing supporting rod, the strength of the X-shaped fork frame can be improved, the bearing capacity is enhanced, the X-shaped fork frame is not prone to deformation, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of aerial work platforms, and in particular to a high-strength scissor lift bracket for scissor lift aerial work platforms. Background Technology

[0002] A scissor lift, also known as a scissor hoist, is a versatile aerial work platform that uses a scissor mechanism to raise and lower the work platform, supporting workers to perform high-altitude operations.

[0003] During use, as the load increases or the service life increases, scissor lifts are prone to deformation and instability. Utility Model Content

[0004] This utility model aims to address the shortcomings of existing technologies by providing a high-strength scissor lift bracket for scissor lift aerial work platforms.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A high-strength scissor lift bracket for a scissor lift aerial work platform includes two scissor lift frames arranged front and rear. Each scissor lift frame includes several X-shaped forks. Each X-shaped fork includes an outer fork plate and an inner fork plate hinged together by a central pin. The connecting ends of the corresponding outer fork plates and inner fork plates of two adjacent X-shaped forks are hinged by side pins. One end of the lowermost X-shaped fork and the uppermost X-shaped fork is provided with a pin seat connected to the frame, and the other end is provided with a roller that is slidably installed with the frame. The outer fork plates and inner fork plates of the X-shaped forks are hinged to the outer ends of reinforcing struts. The two reinforcing struts are hinged together by auxiliary pins. The reinforcing struts are staggered on both sides of the scissor lift frame. A connecting rod is provided between the outer ends of the corresponding outer fork plates of the front and rear scissor lift frames. A lifting drive mechanism is hinged between the connecting rods.

[0007] Both the outer and inner fork plates have an elliptical protrusion at the middle position.

[0008] Both the outer and inner fork plates are welded with reinforcing guard plates on the outside of the hinged end face of the center pin.

[0009] Several stiffening ribs are provided on both sides of the outer fork plate and the inner fork plate.

[0010] The lifting drive mechanism includes a telescopic cylinder hinged between connecting rods.

[0011] The beneficial effects of this utility model are: by strengthening the auxiliary support of the strut, this utility model can improve the strength of the X-shaped fork frame, enhance its load-bearing capacity, reduce the likelihood of deformation, and extend its service life. Attached Figure Description

[0012] Figure 1 The structure of the utility model is shown in the figure;

[0013] In the figure: 1-X-shaped fork frame; 2-edge pin shaft; 3-pin shaft seat; 4-roller; 5-strengthening support rod; 6-assistant pin shaft; 7-telescopic oil cylinder;

[0014] 101-outer fork plate; 102-inner fork plate; 103-center pin shaft; 104-strengthening guard plate; 105-stiffening rib plate;

[0015] The utility model will be described below in combination with the embodiments of the utility model and with reference to the drawings. DETAILED DESCRIPTION

[0016] The principles and features of the utility model will be described below in combination with the drawings, and the embodiments are only used for explaining the utility model and are not used for limiting the scope of the utility model. In the following paragraphs, the utility model is described in more detail with examples with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are all very simplified and use non-precise proportions, and are only used for the purpose of conveniently and clearly assisting the description of the embodiments of the utility model.

[0017] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "provided on" another component, it can be directly provided on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] The utility model will be further described below in combination with the drawings and embodiments:

[0020] A high-strength scissor support for a scissor-type aerial work platform, such as Figure 1As shown, including two pieces of scissors single frame arranged in front and back, each scissors single frame includes a plurality of X-shaped fork frame 1, each X-shaped fork frame 1 includes outer fork plate 101 and inner fork plate 102 hinged together by center pin shaft 103, the connecting end of the corresponding outer fork plate 101 and inner fork plate 102 of the two X-shaped fork frames 1 adjacent to each other is hinged by side pin shaft 2, one end of the lowermost X-shaped fork frame 1 and the uppermost X-shaped fork frame 1 is provided with pin shaft seat 3 connected with the frame and the other end is provided with roller 4 slidingly installed with the frame, and the outer end of the corresponding outer fork plate 101 of the front and rear two pieces of scissors single frame is provided with a connecting rod, and the connecting rod is hinged with a lifting driving mechanism.

[0021] The lifting driving mechanism includes a telescopic oil cylinder 7 hinged between the connecting rods, and the telescopic oil cylinder 7 can drive the X-shaped fork frame 1 to perform lifting operation.

[0022] The number of X-shaped fork frames 1 arranged in each scissors single frame is not fixed, which is arranged according to the need, of course, if the number of X-shaped fork frames 1 is larger, the number of telescopic oil cylinders 7 can also be adjusted according to the need.

[0023] The outer end of the X-shaped fork frame 1 is hinged with a reinforcing strut 5, and the two reinforcing struts 5 are hinged by auxiliary pin shaft 6, and the reinforcing struts 5 are arranged alternately on both sides of the scissors single frame.

[0024] By arranging the reinforcing struts 5, the reinforcing struts 5 can also be adapted to open and close when the X-shaped fork frame 1 is opened and closed, and a certain degree of support can be formed on the outer end of the outer fork plate 101 and the inner fork plate 102, thereby improving the support strength of the whole fork frame.

[0025] The middle position of the outer fork plate 101 and the inner fork plate 102 is an elliptical convex structure, which can improve the strength of the middle hinge.

[0026] The outer end of the outer fork plate 101 and the inner fork plate 102 is welded with a reinforcing guard plate 104.

[0027] The reinforcing guard plate 104 is an elliptical structure.

[0028] The outer fork plate 101 and the inner fork plate 102 are provided with a plurality of stiffening rib plates 105 on the two side surfaces.

[0029] The reinforcing guard plate 104 and the stiffening rib plate 105 can improve the overall strength of the X-shaped fork frame 1.

[0030] The above describes the present application in conjunction with the drawings, obviously, the specific implementation of the present application is not limited by the above method, as long as various improvements are made by using the method concept and technical solution of the present application, or directly applied to other occasions without improvement, which is within the protection scope of the present application.

Claims

1. A high-strength scissor support for a scissor aerial work platform, characterized by, The utility model relates to a kind of two-piece scissors single frame of front and back arrangement, each piece of scissors single frame includes several X-shaped fork frame (1), each X-shaped fork frame (1) includes outer fork plate (101) and inner fork plate (102) by center pin shaft (103) articulated together, the connecting end of corresponding outer fork plate (101), inner fork plate (102) of two X-shaped fork frames (1) adjacent to each other is articulated by side pin shaft (2), the lowermost X-shaped fork frame (1), the one end of the uppermost X-shaped fork frame (1) is equipped with the pin shaft seat (3) connected with frame and another end is equipped with the roller (4) slidingly installed with frame, the outer fork plate (101), inner fork plate (102) of X-shaped fork frame (1) outer end is articulated with reinforcing strut (5), two reinforcing struts (5) are articulated by auxiliary pin shaft (6) between, reinforcing strut (5) is staggered arrangement in the both sides of scissors single frame;Corresponding outer fork plate (101) between the outer end head of front and back two-piece scissors single frame is equipped with connecting rod, and hinging is lifted driving mechanism between connecting rod.

2. The high-strength scissor prop for a scissors aerial work platform according to claim 1, characterized in that, The middle position of outer fork plate (101), inner fork plate (102) is elliptical convex structure.

3. The high-strength scissor prop for a scissors aerial work platform according to claim 2, characterized in that, Outer fork plate (101), inner fork plate (102) are welded with reinforcing guard plate (104) outside hinging end surface of center pin shaft (103).

4. The high-strength scissor prop for a scissors-type aerial work platform according to claim 3, characterized in that, Reinforcing guard plate (104) is elliptical structure.

5. The high-strength scissor prop for a scissors aerial work platform according to claim 4, characterized in that, Outer fork plate (101), inner fork plate (102) are equipped with several stiffening rib plate (105) on two side surfaces.

6. The high-strength scissor prop for a scissors aerial work platform according to claim 5, characterized in that, Lifting driving mechanism includes telescopic oil cylinder (7) articulated between connecting rod.

Images