Forklift truck frame connection device

Abstract

The utility model relates to a fork truck frame connecting device, including restriction part, its main work mode adopts thread cooperation, in addition, the utility model still includes first connecting rod and second connecting rod, and the combination between sliding part and rotary part acts on second connecting rod. The utility model discloses the angle adjustment control between first connecting rod and second connecting rod through restriction part, thereby realize the inclination adjustment of car frame, and this structure design gets rid of the telescopic adjustment mode of traditional dependence on hydraulic telescopic rod, makes the structure more stable.

Description

Technical Field

[0001] This utility model relates to heavy handling equipment, and more particularly to a forklift frame connection device. Background Technology

[0002] When a forklift lifts large loads to a certain height, its front frame needs to tilt backward to bring the center of gravity of the load closer to the forklift body, thereby maintaining stability.

[0003] Currently, the connection between the forklift frame and the body is mainly a two-node connection. That is, the bottom of the frame is rotatably connected to the body, and a hydraulic telescopic rod is hinged between the frame and the body at the waist. By controlling the hydraulic movement, the telescopic rod can be extended and retracted, thereby controlling the tilt and return of the frame. The disadvantage of this structure is that the hydraulic locking depends on the control of the valve body inside the vehicle. Over time, the valve body is prone to failure, and the sealing of the entire oil circuit will deteriorate, resulting in an unstable return angle of the entire frame. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned above, this utility model provides the following technical solution:

[0006] A forklift frame connection device, comprising:

[0007] In the first position, the chassis remains movably connected to the forklift.

[0008] In the second position, the frame is sequentially hinged to the first link and the second link between the second position and the forklift;

[0009] The limiting part allows for angle adjustment between the first link and the second link, or allows the second link to maintain a certain rotation angle on the forklift via the limiting part, wherein the rotation angle is adjustable.

[0010] As a preferred technical solution for a forklift frame connection device, the frame is rotatably connected to the forklift in a first position.

[0011] As a preferred technical solution for a forklift frame connection device, the limiting part includes a threaded rotating part and a sliding part. The rotating part is rotatably mounted on the forklift, and the sliding part is slidably mounted on the forklift. The sliding part maintains a transmission connection with the second connecting rod.

[0012] As a preferred technical solution for a forklift frame connection device, a shaft is rotatably mounted on the forklift, the second connecting rod is connected to the shaft, and the shaft and the sliding part are engaged by teeth.

[0013] As a preferred technical solution for a forklift frame connection device, it also includes a drive motor, which is arranged on the forklift and connected to the rotating part.

[0014] As a preferred technical solution for a forklift frame connection device, it also includes a mounting cavity disposed on the forklift, wherein the drive motor, the rotating part and the sliding part are all located in the mounting cavity.

[0015] The forklift frame connection device provided by this utility model has the following advantages: by controlling the angle between the first link and the second link through the limiting part, the tilt adjustment of the frame is realized. This structural design gets rid of the traditional method of relying on hydraulic telescopic rods for telescopic adjustment, making the structure more stable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram illustrating the application of one embodiment of the present invention.

[0018] Figure 2 For about Figure 1 The front view.

[0019] Figure 3 for Figure 1 The middle section is shown separately.

[0020] Figure 4 This is a schematic diagram showing the adjustment of the vehicle frame to one of the angles in an embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram showing the adjustment of the vehicle frame to another angle in an embodiment of this utility model.

[0022] Reference numerals in the attached drawings: 1. Frame; 2. First connecting rod; 3. Second connecting rod; 4. Shaft; 5. Rotating column; 6. Slider; 7. Drive motor; 8. Mounting cavity. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Figure 1 The diagram shown is a schematic of the present invention assembled on a forklift. Figure 1-5 An embodiment of this utility model provides a forklift frame 1 connecting device, including a first link 2 and a second link 3, specifically:

[0028] The connection node between the frame 1 and the forklift body (hereinafter referred to as the body) can be divided into a first position and a second position from bottom to top. At the first position, the frame 1 and the body are rotatably connected.

[0029] The first link 2 and the second link 3 are hinged, and their ends are respectively hinged to the frame 1 and the vehicle body.

[0030] Based on the above:

[0031] When the tilt angle of the frame 1 is adjusted, this utility model can be achieved by controlling the size of the included angle between the first link 2 and the second link 3, which is equivalent to adjusting the distance between the frame 1 and the vehicle body at the second position, in order to match the rotation relationship at the first position, thereby realizing the adjustment of the tilt angle of the frame 1 on the vehicle body.

[0032] In another scenario, the present invention can also achieve its purpose by controlling the adjustment of the rotation angle of the second link 3 on the vehicle body. When the second link 3 rotates to different angles on the vehicle body, the end of the first link 2 connected to it is located at different positions, thereby causing the frame 1 to tilt in different ways, so as to adjust the tilt angle of the frame 1 on the vehicle body.

[0033] Furthermore, this utility model will further explain the adjustment process of the frame 1 tilt angle in relation to the second situation described above, such as... Figure 1-3 As shown, this utility model also includes a sliding part and a rotating part, which are threadedly engaged. Specifically:

[0034] The sliding part is supported by the slider 6, which is vertically slidably mounted on the vehicle body. The rotating part is supported by the rotating column, which is longitudinally rotatably mounted on the vehicle body. The circumference and the slider 6 maintain a threaded fit.

[0035] A shaft 4 is rotatably mounted on the vehicle body. The second connecting rod 3 is connected to the shaft 4 to maintain the hinge relationship between the second connecting rod 3 and the vehicle body. The shaft 4 and the slider 6 maintain a toothed engagement.

[0036] The vehicle body is also equipped with a drive motor 7, which is connected to the rotating column 5 and is used to drive the movement of the rotating column 5.

[0037] Based on the above, when the rotating column 5 rotates under the action of the drive motor 7, the slider 6 moves slightly, thereby controlling the rotation of the shaft 4 to adjust the angle of the second connecting rod 3 on the vehicle body. Figure 4 and Figure 5 The images show two different states during the adjustment process to keep the frame 1 at different tilt angles. Throughout the process, the threaded engagement between the slider 6 and the rotating column 5 provides a self-locking function, thus maintaining the current position of the frame 1 after the tilt angle is adjusted. Compared to the hydraulic telescopic rod method in the prior art, the self-locking is more stable and secure, and therefore safer.

[0038] Based on the above, while maintaining the required range of tilt adjustment of the frame 1, the length of the second link 3 is more suitable to be between one-third and one-fifth of the length of the first link 2, preferably one-quarter. Under this length ratio, the second link 3 can maintain the required range of tilt adjustment of the frame 1 within the effective rotation range, while ensuring that the angle adjustment of the second link 3 can achieve a relatively effortless effect, thereby reducing the workload of the drive motor 7.

[0039] Furthermore, such as Figure 1 and Figure 2As shown, in order to ensure the concealment of the above-mentioned components, an installation cavity 8 can be provided on the vehicle body. The slider 6, the rotating column 5, and the drive motor 7 are all arranged in the installation cavity 8, thereby protecting them. A box door (omitted in the figure) can also be configured at the opening of the installation cavity 8 to achieve the concealed installation of the corresponding components.

[0040] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A forklift frame connection device, characterized in that: include: In the first position, the chassis remains movably connected to the forklift. In the second position, the frame is sequentially hinged to the first link and the second link between the second position and the forklift; The limiting part allows for angle adjustment between the first link and the second link, or for the second link to maintain a certain rotation angle on the forklift via the limiting part, wherein the rotation angle is adjustable; The limiting part includes a rotating part and a sliding part that are threaded together. The rotating part is rotatably mounted on the forklift, and the sliding part is slidably mounted on the forklift. The sliding part is connected to the second connecting rod in a transmission manner.

2. The forklift frame connection device according to claim 1, characterized in that: The chassis remains rotatably connected to the forklift in the first position.

3. The forklift frame connection device according to claim 1, characterized in that: The forklift is rotatably mounted with a shaft, and the second connecting rod is connected to the shaft. The shaft and the sliding part are engaged by teeth.

4. The forklift frame connection device according to claim 3, characterized in that: It also includes a drive motor, which is mounted on the forklift and connected to the rotating part.

5. The forklift frame connection device according to claim 1, characterized in that: The length ratio of the second link to the first link is between 1 / 3 and 1 / 5.

6. The forklift frame connection device according to claim 5, characterized in that: The length ratio of the second link to the first link is 1 / 4.

7. The forklift frame connection device according to claim 4, characterized in that: It also includes a mounting cavity on the forklift, wherein the drive motor, the rotating part and the sliding part are all located in the mounting cavity.

Images