Overhead guard for forklift
By designing a top side frame and floating shaft combined with a tension spring structure for forklift overhead guards, the problem of poor buffering effect of traditional overhead guards is solved, achieving significant buffering and shock absorption and preventing cargo stacking, thus improving safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HELI FORKELEVATOR
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional forklift overhead guards are rigidly connected to the vehicle body, resulting in poor cushioning, significant vibration, and substantial damage to the vehicle body, leading to an overall unsatisfactory performance.
Design a forklift overhead guard with a symmetrical top and side frame, equipped with front and rear guide holes and a floating shaft, combined with tension springs to achieve vertical floating and shock absorption of the impact-resistant top plate, and can swing down around the front axle after reaching the lowest position to prevent cargo from being crushed.
It achieves significant cushioning and shock absorption, reduces damage to the vehicle body, improves safety and reliability, and prevents cargo from being crushed.
Smart Images
Figure CN224132664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, and more specifically, it relates to a forklift overhead guard. Background Technology
[0002] During forklift operation, the driver is in a high position, and there is a possibility of goods or other objects falling from above. A forklift overhead guard can block these objects, preventing injury to the driver and serving as a crucial line of defense for driver safety. Traditional overhead guards are rigidly connected to the forklift body, resulting in poor cushioning, significant vibration, and substantial damage to the forklift body upon impact, leading to overall poor performance. Therefore, this invention proposes a forklift overhead guard. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a forklift overhead guard that has the characteristics of buffering and shock absorption, and is safe and reliable.
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The utility model relates to a forklift top guard, which includes two top side frames arranged symmetrically from left to right. Each top side frame includes a front frame arm arranged forward and a rear frame arm arranged rearward. The front frame arm has a front guide hole that extends vertically, and the rear frame arm has a rear guide hole that extends vertically. The rear guide hole and the front guide hole on the same top side frame are arranged symmetrically from front to back. A front floating shaft that moves vertically is slidably connected in the two front guide holes, and a rear floating shaft that moves vertically is slidably connected in the two rear guide holes. An impact-resistant top plate is provided between the two top side frames, with its front end connected to the front floating shaft and its rear end connected to the rear floating shaft.
[0005] A front fixed spring pin is provided above the front guide hole and on the front support arm; a front movable spring pin is provided at the end of the front floating shaft; a front tension spring is connected between the front movable spring pin and the front fixed spring pin. A rear fixed spring pin is provided above the rear guide hole and on the rear support arm; a rear movable spring pin is provided at the end of the rear floating shaft; a rear tension spring is connected between the rear movable spring pin and the rear fixed spring pin.
[0006] The present invention is further configured such that: a redirection hole is provided on the rear arm below and connected to the rear guide hole, and the redirection hole extends circumferentially around the axis of the front floating shaft when it is at the lowest position of the front guide hole.
[0007] The present invention is further configured such that the width of the redirection hole is equal to the width of the rear guide hole.
[0008] The present invention is further configured such that the impact-resistant top plate has perforations.
[0009] The present invention is further configured such that the top side frame also includes a side connecting frame that connects the front frame arm and the rear frame arm and is located near the bottom.
[0010] The present invention is further configured such that: the front guide hole is located near the top of the front arm; and the rear guide hole is located near the top of the rear arm.
[0011] In summary, this utility model has the following beneficial effects:
[0012] 1. Because the impact-resistant top plate can float up and down relative to the top and side frames, and is equipped with tension springs, it has a buffering and shock absorption function when impacted from the top, with significant force dissipation and excellent impact resistance.
[0013] 2. After the impact-resistant top plate moves down to its lowest position, it can also swing down around the front axle, causing the impact-resistant top plate to tilt downwards, so that the goods falling on it can slide off, preventing stacking and ensuring safety and reliability. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0017] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0018] Example 1
[0019] See Figure 1 and Figure 2As shown, the forklift overhead guard involved in this embodiment includes two top side frames arranged symmetrically from left to right. The top side frame includes a front frame arm 1 arranged forward and a rear frame arm 2 arranged rearward. The front frame arm 1 has a front guide hole 3 that extends vertically, and the rear frame arm 2 has a rear guide hole 4 that extends vertically. The rear guide hole 4 and the front guide hole 3 on the same top side frame are arranged symmetrically from front to back. A front floating shaft 5 that moves vertically is slidably connected in the two front guide holes 3, and a rear floating shaft 6 that moves vertically is slidably connected in the two rear guide holes 4. An impact-resistant top plate 7 is provided between the two top side frames, with its front end connected to the front floating shaft and its rear end connected to the rear floating shaft.
[0020] Above the front guide hole 3, a front fixed spring pin 8 is provided on the front support arm; at the end of the front floating shaft 5, a front movable spring pin 9 is provided; a front tension spring (not shown) is connected between the front movable spring pin 9 and the front fixed spring pin 8; above the rear guide hole 4, a rear fixed spring pin 11 is provided on the rear support arm; at the end of the rear floating shaft 6, a rear movable spring pin 12 is provided; a rear tension spring (not shown) is connected between the rear movable spring pin 12 and the rear fixed spring pin 11.
[0021] Furthermore, the top side frame also includes a side connecting frame 15 that connects the front frame arm 1 and the rear frame arm 2 and is located near the bottom.
[0022] Furthermore, the front guide hole 3 is located near the top of the front arm 1; the rear guide hole 4 is located near the top of the rear arm 2.
[0023] In this implementation scheme, firstly, the front floating shaft 5, under the tension of the front tension spring, is located at the highest position of the front guide hole 3, and the rear floating shaft 6, under the tension of the rear tension spring, is located at the highest position of the rear guide hole 4. At this time, the impact-resistant top plate 7 is also located at its highest position. When the impact-resistant top plate 7 is impacted by a falling object, the impact-resistant top plate 7 moves downward, pulling the front and rear tension springs downward, causing them to extend and buffer the force, thereby achieving a shock absorption effect.
[0024] Example 2
[0025] See Figure 1 and Figure 2 As shown, the forklift overhead guard involved in this embodiment is further configured based on embodiment 1, wherein the rear frame arm 2 is provided with a redirection hole 14 located below and connected to the rear guide hole 4, and the redirection hole 14 extends circumferentially around the axis of the front floating shaft 5 when it is located at the lowest position of the front guide hole 3.
[0026] Furthermore, the width of the redirection hole 14 is equal to the width of the rear guide hole 4.
[0027] In this embodiment, when the front floating shaft 5 at the front end of the impact-resistant top plate 7 moves down to the lowest position, the rear floating shaft 6 at its rear end can still slide along the redirection hole 14, causing the impact-resistant top plate 7 to tilt downward on one side, causing the goods that fall on it to slide down.
[0028] Example 3
[0029] See Figure 1 and Figure 2 As shown, the forklift overhead guard involved in this embodiment is further configured, based on embodiment 1, with the impact-resistant top plate 7 having perforations (not shown).
[0030] In this embodiment, the overall mass of the impact-resistant top plate 7 can be reduced by creating perforations, while ensuring the impact resistance strength and allowing for ventilation.
[0031] The forklift overhead guard of this utility model has an impact-resistant top plate that can float up and down relative to the top side frame. With the help of tension springs, it has a buffer and shock absorption function when impacted from the top, with obvious force dissipation and good impact resistance. Furthermore, as the impact-resistant top plate moves down to the lowest position, it can also swing down around the front axle, causing the impact-resistant top plate to tilt downwards and allow the goods falling on it to slide off, preventing stacking and ensuring safety and reliability. The overall function is complete and highly practical.
[0032] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.
[0033] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A protective overhead frame for a fork lift truck comprising two overhead side frames arranged in left and right symmetry, the overhead side frames comprising a front frame arm arranged forwardly and a rear frame arm arranged rearwardly, characterized in that: The front arm has a front guide hole that extends vertically, and the rear arm has a rear guide hole that extends vertically. The rear guide holes and the front guide holes on the same top side frame are arranged symmetrically. A front floating shaft that moves vertically is slidably connected in the two front guide holes, and a rear floating shaft that moves vertically is slidably connected in the two rear guide holes. An impact-resistant top plate is provided between the two top side frames, with its front end connected to the front floating shaft and its rear end connected to the rear floating shaft. A front fixed spring pin is provided above the front guide hole and on the front support arm; a front movable spring pin is provided at the end of the front floating shaft; a front tension spring is connected between the front movable spring pin and the front fixed spring pin. A rear fixed spring pin is provided above the rear guide hole and on the rear support arm; a rear movable spring pin is provided at the end of the rear floating shaft; a rear tension spring is connected between the rear movable spring pin and the rear fixed spring pin.
2. The protective overhead frame for a fork truck as set forth in claim 1, wherein: The rear arm has a redirection hole located below and connected to the rear guide hole. The redirection hole extends circumferentially around the axis of the front floating shaft when it is at the lowest position of the front guide hole.
3. The roll-off protector as set forth in claim 2, wherein: The width of the redirection hole is equal to the width of the rear guide hole.
4. The protective overhead frame for a fork lift truck according to any one of claims 1 to 3, characterized in that: The impact-resistant top plate has perforations.
5. The protective overhead frame for a fork truck as set forth in claim 1, wherein: The top side frame also includes a side connecting frame that connects the front arm and the rear arm and is located near the bottom.
6. The protective overhead frame for a fork truck as set forth in claim 1, wherein: The front guide hole is located near the top of the front arm; the rear guide hole is located near the top of the rear arm.