Rotatable grid plate for overhead guard

Abstract

The utility model discloses a rotatable grid tray for an overhead guard, which comprises two hollow steel tube structures, a plurality of groups of grid trays are arranged between the two hollow steel tube structures, each hollow steel tube structure comprises an outer steel tube, and bearing end covers with the same number as the outer steel tubes are mounted on the end surfaces, close to the grid trays, of the outer steel tubes. The multiple bearing end covers are each provided with a rotatable stepped shaft penetrating into the corresponding outer side steel pipe. The grid plate synchronous adjusting device is simple in structure, adopts the combined manual rotation of the rotating handle and multiple groups of long strips, concave connecting blocks and rotatable stepped shafts to drive a plurality of grid plates to be synchronously adjusted, and is better in controllability, low in maintenance cost, convenient and simple in operation principle, higher in reliability while integrally ensuring the aesthetic property, and suitable for popularization and application. The top can be opened and closed in a simple clockwise and anticlockwise 90-degree rotation mode, so that the requirement of a customer for the brightness of the top can be met, simple closing operation can be carried out on the burning sun and rainy and snowy days, and the outdoor working requirement of a driver due to severe weather is met.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a rotatable grating for a overhead guard. Background Technique

[0002] With the increasingly wide application of forklifts in the engineering field, they have become an indispensable part of liberating people's manual labor. Customers' requirements for the overall performance, safety and convenience indicators of forklifts are increasing day by day. As an important component of the overall structure of the forklift, the overhead guard plays an important role in protecting the personal safety of forklift drivers. The grating structure in the overhead guard on the market is usually connected to the front and rear rectangular hollow steel pipes in a welded form, and the overall form is single, only used to strengthen the overall strength of the overhead guard. More and more customers consider the requirements of the grating space and light and dark scenes of the overhead guard when purchasing forklifts. They often do not equip the cab and the roof but still want to meet the requirement that the top of the cab can keep out the wind and rain. However, the single welded grating form is simple in structure and does not meet the requirements of such customers, making customers hesitate between the overall light and dark degree and the requirement of keeping out the wind and rain when purchasing forklifts. Therefore, a rotatable grating for an overhead guard is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rotatable grating for an overhead guard to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A rotatable grating for an overhead guard includes two hollow steel pipe structures. There are multiple groups of gratings between the two hollow steel pipe structures. The hollow steel pipe structure includes an outer steel pipe. The end face of the outer steel pipe adjacent to the grating is provided with bearing end covers with the same number as it. A rotatable stepped shaft penetrating into the outer steel pipe is installed on each of the multiple bearing end covers. Multiple groups of brackets are installed in the outer steel pipe. Each group of brackets is connected to each group of rotatable stepped shafts through bearings. Concave connecting blocks are installed at the ends of the multiple groups of rotatable stepped shafts far from the grating. Each group of concave connecting blocks is connected to a long strip arranged in the outer steel pipe. A rotating handle for driving the long strip to change its position is also installed on the outer steel pipe.

[0005] As a further scheme of the utility model: The two hollow steel pipe structures are arranged in parallel. One of the hollow steel pipe structures is connected to a bent thin plate. The ends of the two hollow steel pipe structures are respectively connected to the left front leg and the right front leg. The left rear leg and the right rear leg are respectively installed at the ends of the left front leg and the right front leg. An instrument rack is arranged between the left front leg and the right front leg.

[0006] As a further scheme of the utility model: A limit groove for restricting the movement track of the rotating handle is opened on the surface of the outer steel pipe.

[0007] As a further solution of the present utility model: the rotary handle includes a crank and a connecting rod connected to the crank, and the connecting rod is connected to the long strip.

[0008] As a further solution of the present utility model: a square block is installed on the surface of the crank, and the square block is adapted to both ends of the limiting groove. If the square block is located at both ends of the limiting groove, the crank can be locked and cannot rotate. If the square block is not in the limiting groove, the crank can rotate.

[0009] As a further solution of the present utility model: the bearing end cover is fixed on the surface of the outer steel pipe by fastening screws, and the bracket is also fixed inside the outer steel pipe by fastening screws.

[0010] As a further solution of the present utility model: the concave connecting blocks are all connected to the long strip by hinge members.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] This application adopts a combination of a rotary handle, multiple long strips, concave connecting blocks, and a rotatable stepped shaft to manually rotate and drive multiple grating plates to be adjusted synchronously. It has good controllability, low maintenance cost, and a simple and convenient operation principle. While ensuring the overall aesthetics, it has high reliability. It can achieve the opening and closing states at the top by simply rotating 90° clockwise or counterclockwise, so as to meet the customer's need for the brightness at the top and be able to perform simple closing operations in strong sunlight, rain, and snow, avoiding the outdoor work needs of drivers in bad weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the integral roof guard frame of the present utility model;

[0014] Figure 2 is a schematic diagram of the grating plate of the present utility model;

[0015] Figure 3 is a schematic diagram of the first perspective inside the outer steel pipe of the present utility model;

[0016] Figure 4 is a schematic diagram of the second perspective inside the outer steel pipe of the present utility model;

[0017] Figure 5 is a schematic diagram of the rotary handle of the present utility model;

[0018] Figure 6 is a schematic diagram of the limiting groove of the present utility model;

[0019] Figure 7 is a schematic diagram of the rotary handle and the limiting groove of the present utility model;

[0020] Figure 8 Schematic diagram of the internal connection of the hollow steel pipe structure of the present utility model;

[0021] Figure 9 Schematic diagram of the open and closed positions of the strip of the present utility model;

[0022] Figure 10 Schematic diagram of the open state of the grid plate of the present utility model;

[0023] Figure 11 Schematic diagram of the closed state of the grid plate of the present utility model;

[0024] In the figure: 1, bent thin plate; 2, grid plate; 3, hollow steel pipe structure; 31, outer steel pipe; 32, bearing end cover; 33, fastening screw; 34, rotatable stepped shaft; 35, bearing; 36, concave connecting block; 37, strip; 38, hinge member; 4, rotating handle; 41, crank; 42, connecting rod; 5, front left leg; 6, front right leg; 7, rear left leg; 8, rear right leg; 9, instrument rack. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-11 , in the embodiment of the present utility model, a rotatable grid plate for a roof protection frame includes two hollow steel pipe structures 3. A plurality of groups of grid plates 2 are provided between the two hollow steel pipe structures 3. The hollow steel pipe structure 3 includes an outer steel pipe 31. Bearing end covers 32 with the same number as the grid plate 2 are installed on the end face of the outer steel pipe 31 adjacent to the grid plate 2. A rotatable stepped shaft 34 penetrating into the outer steel pipe 31 is installed on each of the plurality of bearing end covers 32. A plurality of groups of brackets are installed in the outer steel pipe 31. Each group of brackets is connected to each group of rotatable stepped shafts 34 through bearings 35. Concave connecting blocks 36 are installed at the ends of the plurality of groups of rotatable stepped shafts 34 away from the grid plate 2. The plurality of groups of concave connecting blocks 36 are all connected to a strip 37 provided in the outer steel pipe 31. A rotating handle 4 for driving the strip 37 to change its position is also installed on the outer steel pipe 31. The bearing end covers 32 are fixed on the surface of the outer steel pipe 31 through fastening screws 33, and the brackets are also fixed inside the outer steel pipe 31 through fastening screws 33. The concave connecting blocks 36 are all connected to the strip 37 through hinge members 38.

[0027] Specifically, the spacing between each two groups of grid plates 2 between the multiple groups of grid plates 2 is adapted to the width of the grid plates 2. When the grid plates 2 are converted from a vertical state to a horizontal state, the sides of each group of grid plates 2 are tightly connected together. When working outdoors, the closed grid plates 2 can block sunlight from directly shining into the cab from the top, thereby improving the comfort level in the cab. When working indoors, opening the grid plates 2 can increase the light in the cab. The ends of the grid plates 2 are fixedly connected to the rotatable stepped shafts 34, and the rotatable stepped shafts 34 are connected to the outer steel pipes 31 through the bearing end covers 32 on the one hand, and to the brackets through the bearings 35 on the other hand. Secondly, the ends of the rotatable stepped shafts 34 away from the grid plates 2 are connected to the strips 37 through the concave connecting blocks 36. When the position of the strips 37 changes, the rotatable stepped shafts 34 can be driven to rotate by the concave connecting blocks 36, thereby realizing the one-to-many functions. There is no need to adjust them one by one. The strips 37 can be driven to move and complete the opening and closing of the grid plates 2 by simply moving the position of the rotating handle 4. Figure 9 As shown, when the strip 37 is located at position one, the grid plate 2 is open, and when the strip 37 is located at position two, the grid plate 2 is closed.

[0028] See also Figure 1 In one embodiment, in this embodiment, preferably, two hollow steel tube structures 3 are arranged in parallel, one of the hollow steel tube structures 3 is connected to the curved thin plate 1, the ends of the two hollow steel tube structures 3 are respectively connected to the left front leg 5 and the right front leg 6, the ends of the left front leg 5 and the right front leg 6 are respectively installed with the left rear leg 7 and the right rear leg 8, and an instrument frame 9 is provided between the left front leg 5 and the right front leg 6.

[0029] See also Figure 1 In one embodiment, in this embodiment, preferably, a limit groove for limiting the movement trajectory of the rotating handle 4 is opened on the surface of the outer steel pipe 31; the rotating handle 4 includes a crank 41 and a connecting rod 42 connected to the crank 41, and the connecting rod 42 is connected to the long strip 37; a block is installed on the surface of the crank 41, and the block is adapted to the two ends of the limit groove. If the block is located at the two ends of the limit groove, the crank 41 can be stuck to prevent it from rotating. If the block is not in the limit groove, the crank 41 can rotate.

[0030] Specifically, through the raised square block on the crank 41, when a rotation operation is performed, it can be pulled backward, thereby driving the connecting rod 42 to move back and forth inside the circular hole of the long strip 37. When the square block is away from the limit groove, a rotation movement can be performed at this time; when rotating to the limit position, the rotating handle 4 is pushed forward as a whole, thereby clamping the square block in the limit groove to achieve the rotation limit function. Secondly, the crank 41 drives the connecting rod 42 to move, thereby driving the long strip 37 to move. During the whole process, the whole long strip 37 maintains a posture parallel to the upper surface of the outer steel pipe 31. Through the action of the hinge member 38, the concave connecting block 36 realizes a counterclockwise 90° rotation movement. It is fixedly connected to the rotatable stepped shaft 34, and the rotatable stepped shaft 34 can freely rotate in the bearing 35. At the same time, the rotatable stepped shaft 34 is fixedly connected to the grating 2, so as to meet the opening and closing postures of the grating 2 of 90° forward and backward.

[0031] The working principle and usage process of the present utility model: When the weather is good during outdoor operation, the rotatable grating of the overhead guard is kept in the open state. At this time, the overall light transmittance, air permeability and field of vision of the driver can be increased. When the weather is bad during outdoor operation, through the rotation function of the rotating handle 4, the long strip 37, the concave connecting block 36 and the rotatable stepped shaft 34 are driven to perform a rotation movement, so as to finally realize the posture change of the grating 2, from the open state to the closed state, which can still ensure the requirements of the comfort and freedom of the forklift driver during outdoor operation, and meet the good economic benefits of customers in the state of not being equipped with a cab and a roof.

[0032] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0033] Therefore, the above description is only the preferred embodiment of the present application, and is not used to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A rotatable grid plate for an overhead guard, comprising two hollow steel pipe structures (3), characterized in that: A plurality of grid plates (2) are arranged between the two hollow steel tube structures (3). The hollow steel tube structure (3) comprises an outer steel tube (31). The end surface of the outer steel tube (31) adjacent to the grid plate (2) is provided with bearing end covers (32) of the same number as the outer steel tube (31). A plurality of bearing end covers (32) are provided with rotatable stepped shafts (34) penetrating into the outer steel tube (31). A plurality of brackets are provided in the outer steel tube (31). Each bracket is connected to each rotatable stepped shaft (34) via a bearing (35). Ends of the plurality of rotatable stepped shafts (34) away from the grid plate (2) are provided with concave connection blocks (36). The plurality of concave connection blocks (36) are connected to a long strip (37) arranged in the outer steel tube (31). A rotating handle (4) for driving the long strip (37) to change position is also provided on the outer steel tube (31).

2. The rotatable grid plate for overhead guard according to claim 1, characterized in that: The two hollow steel tube structures (3) are arranged in parallel, one of the hollow steel tube structures (3) is connected to the bent thin plate (1), the ends of the two hollow steel tube structures (3) are respectively connected to the left front leg (5) and the right front leg (6), the ends of the left front leg (5) and the right front leg (6) are respectively installed with the left rear leg (7) and the right rear leg (8), and an instrument frame (9) is provided between the left front leg (5) and the right front leg (6).

3. The rotatable grid plate for overhead guard according to claim 1, characterized in that: The surface of the outer steel pipe (31) is provided with a limiting groove for limiting the movement track of the rotating handle (4).

4. The rotatable grid plate for overhead guard according to claim 3, characterized in that: The rotating handle (4) comprises a crank (41) and a connecting rod (42) connected to the crank (41), and the connecting rod (42) is connected to the long strip (37).

5. The rotatable grid plate for overhead guard according to claim 4, characterized in that: A block is installed on the surface of the crank (41), and the block is adapted to the two ends of the limiting groove. If the block is located at the two ends of the limiting groove, the crank (41) can be clamped to prevent it from rotating. If the block is not located in the limiting groove, the crank (41) can rotate.

6. The rotatable grid plate for overhead guard according to claim 1, characterized in that: The bearing end cover (32) is fixed to the surface of the outer steel pipe (31) by means of fastening screws (33), and the bracket is also fixed to the inside of the outer steel pipe (31) by means of fastening screws (33).

7. The rotatable grid plate for overhead guard according to claim 1, characterized in that: The concave connection blocks (36) are connected to the long strips (37) via hinges (38).

Images