A forklift hoisting device with telescopic boom and multi-angle adjustment function
By designing a forklift lifting device with telescopic boom and multi-angle adjustment functions, the problem of relying on forklift operation for boom angle and height adjustment in existing technologies has been solved, enabling flexible lifting in complex scenarios and enhancing the applicability and operational flexibility of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEZHOU ERJIAN MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-09
AI Technical Summary
Existing telescopic forklift boom devices rely on the forklift itself for angle and height adjustments during lifting, which is cumbersome. The lifting of goods is limited by the boom length and angle, making it difficult to meet the diverse lifting needs in complex scenarios.
A forklift lifting device with a telescopic boom and multi-angle adjustment function was designed. By adjusting the components, the overall angle and height of the fixed boom and telescopic boom can be changed. Combined with the wire rope lifting structure and telescopic components, independent angle and height adaptation can be achieved, breaking the dependence on forklift adjustment and enhancing flexibility.
This device can independently complete hoisting operations at different heights, distances, and angles, breaking through the traditional limitations of boom length, improving the flexibility and applicability of hoisting operations, and adapting to complex working scenarios.
Smart Images
Figure CN224337082U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of forklift boom technology, specifically a forklift lifting device with a telescopic boom and multi-angle adjustment function. Background Technology
[0002] In the field of industrial material handling, forklifts are widely used in ports, warehouses, factory workshops, and other scenarios as core equipment for material loading, unloading, stacking, and short-distance transportation. With the diversification of logistics operation scenarios, the traditional method of forklifts relying solely on forks for horizontal transport can no longer meet complex lifting needs. Therefore, boom devices to expand the lifting functions of forklifts have emerged.
[0003] Chinese utility model patent CN223033037U discloses a telescopic forklift boom device. Through the coordinated design of a mounting base, fixed rod, motor, threaded rod, and movable rod, the motor drives the threaded rod to rotate, causing the movable rod to slide along the thread to achieve telescopic adjustment, eliminating the need for manual operation and quickly adapting to cargo retrieval needs. However, the angle and height adjustment of this boom are highly dependent on the lifting and lowering of the forklift's own forks or the movement of the forklift as a whole. Adjusting the working angle and height requires frequent forklift relocation and repeated forklift height adjustments, making the operation cumbersome. Especially in confined spaces or operating scenarios with significant elevation differences, space constraints can prevent flexible adaptation. Furthermore, cargo lifting relies on a lifting ring directly installed at the end of the boom, with the lifting range entirely limited by the boom's length and angle. When cargo is outside the boom's horizontal or vertical limits, the forklift must still be moved to reach the target location, increasing operational steps and making it difficult to complete lifting operations due to space limitations, thus failing to meet diverse lifting needs in complex scenarios.
[0004] Therefore, this application provides a forklift lifting device with a telescopic boom and multi-angle adjustment function to solve the above problems. Utility Model Content
[0005] This application provides a forklift lifting device with a telescopic boom and multi-angle adjustment function, aiming to solve the problems mentioned in the background art, such as the boom angle and height adjustment of existing telescopic forklift boom devices being highly dependent on the forklift's own operation, the cargo lifting being limited by the boom length and angle and requiring the forklift to be moved to reach the cargo outside the limit range, the cumbersome operation, poor adaptability, and difficulty in meeting the diverse lifting needs of complex scenarios.
[0006] To achieve the above objectives, this application provides the following technical solution: a forklift lifting device with a telescopic boom and multi-angle adjustment function, including a base, a fixed arm hinged to the base, a telescopic arm passing through the end of the fixed arm away from the base and slidably connected within the fixed arm, and a telescopic assembly disposed on the fixed arm for driving the telescopic arm to extend and retract.
[0007] The forklift lifting device also includes an adjustment component mounted on the base and connected to the fixed arm for adjusting the height and angle of the fixed and telescopic arms, and a wire hoisting structure mounted on the fixed and telescopic arms for lifting and lowering goods. By setting the adjustment component, the overall angle and height of the fixed and telescopic arms can be changed without relying on the forklift itself for adjustment. It can independently adapt the angle and height, allowing the device to lift goods at different heights, distances, and angles. This breaks through the dependence of traditional booms on forklift adjustments, adapting to more complex working scenarios and greatly enhancing operational flexibility. Furthermore, by using the wire hoisting structure in conjunction with the telescopic and adjustment components to lift and lower goods, compared to traditional booms that rely solely on their own length and lifting rings, this design allows goods to move within a wider vertical and horizontal range, avoiding the problem of insufficient boom length preventing access to target positions, further improving the device's operational flexibility.
[0008] Preferably, in order to ensure a secure connection between the base and the forklift, a locking screw is screwed onto the base for fixing the base to the forklift; by tightening the locking screw and pressing it firmly against the forklift mounting surface, the base can be tightly fixed to the corresponding mounting position on the forklift. The self-locking and tightness of the threaded connection can limit the relative movement between the base and the forklift, thereby preventing displacement during operation.
[0009] Preferably, in order to drive the telescopic boom to extend and retract, and to achieve overall length adjustment of the fixed boom and the telescopic boom, the telescopic assembly includes a fixing groove fixedly installed above the end of the fixed boom near the base, a hydraulic cylinder fixedly installed in the fixing groove, and a connecting seat fixedly installed above the end of the telescopic boom away from the fixed boom. The piston rod of the hydraulic cylinder is fixedly connected to the connecting seat. By extending and retracting the piston rod of the hydraulic cylinder, the connecting seat and the telescopic boom can be directly driven to slide within the fixed boom, thereby achieving adjustment of the extension length of the telescopic boom to adapt to hoisting needs at different horizontal distances.
[0010] Preferably, in order to adjust the overall height and angle of the fixed arm and the telescopic arm, the adjustment assembly includes a fixed seat 1 fixedly installed on the base at a position corresponding to the lower part of the fixed arm, a hydraulic cylinder 2 hinged to the fixed seat 1, and a fixed seat 2 fixedly installed at the bottom of the fixed arm. The piston rod of the hydraulic cylinder 2 is hinged to the fixed seat 2. By extending and retracting the piston rod of the hydraulic cylinder 2, the fixed arm can be pushed to rotate around its hinge point with the base, thereby changing the overall angle and height of the fixed arm and the telescopic arm. This enables the boom to adapt to multiple angles and heights, cope with complex scenarios such as high-low difference operations and hoisting in narrow spaces, and enhances the operational flexibility of the device.
[0011] Preferably, to achieve cargo lifting and lowering, the wire rope lifting structure includes a wire rope, a concave seat fixedly installed above the fixed groove, a hydraulic disc rotatably connected to the concave seat, a hydraulic motor fixedly installed on one side of the concave seat for driving the hydraulic disc to rotate, a guide wheel rotatably connected to the end of the telescopic arm away from the fixed arm, a housing located below the guide wheel, a pulley rotatably connected to the housing, and a hook fixedly installed on the housing corresponding to the position below the pulley. One end of the wire rope is wound around the hydraulic disc and fixedly connected to it, while the other end passes over the guide wheel, passes under the pulley, and is fixedly connected to the bottom of the telescopic arm. By driving the hydraulic disc to rotate through the hydraulic motor, the wire rope is wound and released, allowing it to change direction twice through the guide wheel and pulley, forming a composite motion path of vertical lifting and horizontal extension. Finally, the cargo is lifted by the hook, enabling the cargo to move within a wider vertical and horizontal range, breaking through the traditional boom length limitation and improving the applicability of lifting operations.
[0012] Preferably, in order to guide the sliding of the telescopic boom and reduce its friction with the fixed arm, the forklift lifting device further includes a notch formed below the fixed arm near one end of the telescopic boom, and a guide component disposed at the notch for guiding the sliding of the telescopic boom and reducing sliding friction; the notch provides installation space for the guide component, and the guide component can contact the bottom of the telescopic boom, which can both limit its lateral displacement and guide it when the telescopic boom slides, and reduce the direct friction between the telescopic boom and the fixed arm through its own structure, thereby avoiding jamming caused by displacement when the telescopic boom slides, reducing component wear, extending the service life of the telescopic boom and the fixed arm, ensuring that the telescopic adjustment is always smooth, and improving the long-term stability of the device.
[0013] Preferably, in order to achieve sliding guidance and reduce friction, the guiding assembly includes brackets symmetrically fixed at the positions on both sides of the notch corresponding to the fixed arm, and rollers rotatably connected between the two brackets and located at the notch for rolling contact with the surface of the telescopic arm; by the rollers rolling contacting the bottom of the telescopic arm, when the telescopic arm slides, the rollers rotate with the movement of the telescopic arm, converting the sliding friction between the telescopic arm and the fixed arm into rolling friction, thereby significantly reducing the frictional resistance when the telescopic arm extends and retracts, making the adjustment process smoother and less labor-intensive, reducing component wear, and at the same time, the rollers can limit the lateral displacement of the telescopic arm, improve guiding accuracy, and ensure stable and reliable telescopic adjustment.
[0014] This forklift lifting device, equipped with a telescopic boom and multi-angle adjustment, can change the overall angle and height of the fixed boom and telescopic boom by setting adjustment components. It can independently complete the angle and height adaptation without relying on the forklift itself. This allows the device to lift goods at different heights, distances and angles, breaking through the dependence of traditional booms on forklift adjustments. It can adapt to more complex working scenarios and greatly enhance the flexibility of operation.
[0015] This forklift lifting device, equipped with a telescopic boom and multi-angle adjustment, uses a wire hoisting structure combined with telescopic and adjustment components to lift and lower goods. Compared to traditional booms that rely solely on their own length and lifting rings for lifting, this design allows goods to move within a wider vertical and horizontal range, avoiding the problem of not being able to reach the target position due to insufficient boom length, and further improving the flexibility of the device.
[0016] This forklift lifting device, equipped with a telescopic boom and multi-angle adjustment, uses rollers to make rolling contact with the bottom of the telescopic boom. This converts the sliding friction between the telescopic boom and the fixed boom into rolling friction, thereby reducing the frictional resistance when the telescopic boom extends and retracts. This ensures that the extension and retraction adjustment is always smooth, improves the long-term stability of the device, and also limits the lateral deviation of the telescopic boom, thus playing a guiding role. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a forklift lifting device with a telescopic boom and multi-angle adjustment function.
[0018] Figure 2 This is a side view of a forklift lifting device with a telescopic boom and multi-angle adjustment function.
[0019] Figure 3 This is a schematic diagram of the base structure in a forklift lifting device with telescopic boom and multi-angle adjustment function;
[0020] Figure 4 This is a schematic diagram of the wire lifting structure in a forklift lifting device with a telescopic boom and multi-angle adjustment function.
[0021] Figure 5 This is a schematic diagram of the guide assembly in a forklift lifting device with a telescopic boom and multi-angle adjustment function.
[0022] In the picture:
[0023] 1. Base; 11. Locking screw;
[0024] 2. Fixed arm; 21. Notch; 22. Guide assembly; 221. Bracket; 222. Roller;
[0025] 3. Telescopic boom;
[0026] 4. Telescopic assembly; 41. Fixing groove; 42. Hydraulic cylinder one; 43. Connecting seat;
[0027] 5. Adjustment assembly; 51. Fixing base one; 52. Hydraulic cylinder two; 53. Fixing base two
[0028] 6. Wire hoisting structure; 61. Concave seat; 62. Hydraulic disc; 63. Hydraulic motor; 64. Guide wheel; 65. Wire rope; 66. Housing; 67. Pulley; 68. Hook. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Example 1
[0031] This embodiment provides a forklift lifting device with a telescopic boom and multi-angle adjustment functions, such as... Figures 1-5 As shown, the forklift lifting device includes a base 1, a fixed arm 2 hinged to the base 1, a telescopic arm 3 passing through the end of the fixed arm 2 away from the base 1 and slidably connected within the fixed arm 2, and a telescopic assembly 4 disposed on the fixed arm 2 for driving the telescopic arm 3 to extend and retract; the forklift lifting device also includes an adjustment assembly 5 disposed on the base 1 and connected to the fixed arm 2 for adjusting the height and angle of the fixed arm 2 and the telescopic arm 3, and a wire lifting structure 6 disposed on the fixed arm 2 and the telescopic arm 3 for lifting and lowering goods.
[0032] In use, the base 1 is first fixed to the forklift, providing stable support for the entire device. When the working range needs to be adjusted, the adjustment component 5 is activated to push the fixed arm 2 to rotate around the hinge point with the base 1, thereby changing the overall height and angle of the fixed arm 2 and the telescopic arm 3 to adapt to different working scenarios at different heights and angles. After the angle is in place, the telescopic component 4 is activated to drive the telescopic arm 3 to slide along the inner wall of the fixed arm 2, so that the overall length of the fixed arm 2 and the telescopic arm 3 can adapt to different horizontal distance working requirements. However, during lifting, the lifting and lowering of goods is achieved through the wire lifting structure 6. The wire lifting structure 6, together with the telescopic component 4 for adjusting the length of the telescopic arm 3 and the adjustment component 5 for adjusting the height and angle of the fixed arm 2 and the telescopic arm 3, can complete the lifting operation of goods in a wider range.
[0033] It should be noted that the forklift lifting device also includes a hydraulic distributor for controlling cylinder 42, cylinder 52, and hydraulic motor 63. The hydraulic distributor mainly consists of a valve body, valve core, inlet port, return port, and a control lever for driving the valve core. In use, the rodless chamber inlet and rod chamber outlet of cylinder 42, the rodless chamber inlet and rod chamber outlet of cylinder 52, and the inlet and outlet of hydraulic motor 63 are connected to the corresponding inlet and return ports on the hydraulic distributor via oil pipes. The valve core position is changed by operating the corresponding control lever to control the hydraulic oil to flow into the corresponding cylinder chamber through different oil outlets. This enables the piston rod of cylinder 42 to extend or retract to drive the telescopic arm 3 to extend or retract, or the piston rod of cylinder 52 to extend or retract to raise or lower the angle of the fixed arm 2 and the telescopic arm 3, or the rotation and stop of the hydraulic motor 63. The hydraulic oil discharged from cylinder 42, cylinder 52 and hydraulic motor 63 flows back to the oil tank through the return oil port, completing the hydraulic control cycle.
[0034] In order to ensure a stable connection between the base 1 and the forklift, a locking screw 11 is screwed onto the base 1 to fix the base 1 to the forklift. By tightening the locking screw 11 and pressing it against the corresponding threaded hole on the forklift mounting surface, the base 1 can be tightly fixed in the corresponding mounting position on the forklift. The self-locking and tightness of the threaded connection can limit the relative movement between the base 1 and the forklift, thereby preventing displacement during operation.
[0035] Specifically, the telescopic assembly 4 includes a fixing groove 41 fixedly installed above the end of the fixed arm 2 near the base 1, a hydraulic cylinder 42 fixedly installed in the fixing groove 41, and a connecting seat 43 fixedly installed above the end of the telescopic arm 3 away from the fixed arm 2. The piston rod of the hydraulic cylinder 42 is fixedly connected to the connecting seat 43.
[0036] When it is necessary to adjust the extension length of the telescopic boom 3, the hydraulic cylinder 42 is activated, and its piston rod moves in a telescopic motion. Since its piston rod is fixedly connected to the connecting seat 43, the extension and retraction of its piston rod can drive the telescopic boom 3 to slide within the fixed arm 2, thereby enabling the telescopic boom 3 to extend or retract relative to the fixed arm 2, thereby adjusting the overall length of the fixed arm 2 and the telescopic boom 3 to meet the hoisting needs of different horizontal distances.
[0037] Furthermore, the adjustment assembly 5 includes a fixed seat 51 fixedly installed at the position below the fixed arm 2 corresponding to the base 1, a hydraulic cylinder 52 hinged to the fixed seat 51, and a fixed seat 53 fixedly installed at the bottom of the fixed arm 2, wherein the piston rod of the hydraulic cylinder 52 is hinged to the fixed seat 53.
[0038] When it is necessary to adjust the height and angle of the fixed arm 2 and the telescopic arm 3, the hydraulic cylinder 2 52 is activated, and its piston rod moves in extension and retraction. Due to the hinged connection between its piston rod and the fixed base 2 53, the extension and retraction of its piston rod can push the fixed arm 2 to rotate around its hinge point with the base 1. During the rotation of the fixed arm 2, the telescopic arm 3 will be driven to change position simultaneously, thereby realizing the adjustment of the overall height and angle of the fixed arm 2 and the telescopic arm 3 to adapt to hoisting operation scenarios of different heights and angles.
[0039] Furthermore, the wire hoisting structure 6 includes a wire rope 65, a concave seat 61 fixedly installed above the fixed groove 41, a hydraulic disc 62 rotatably connected to the concave seat 61, a hydraulic motor 63 fixedly installed on one side of the concave seat 61 for driving the hydraulic disc 62 to rotate, a guide wheel 64 rotatably connected to the end of the telescopic arm 3 away from the fixed arm 2, a housing 66 located below the guide wheel 64, a pulley 67 rotatably connected to the housing 66, and a hook 68 fixedly installed on the housing 66 at the position below the corresponding pulley 67. One end of the wire rope 65 is wound around the hydraulic disc 62 and fixedly connected to the hydraulic disc 62, and the other end passes over the guide wheel 64, passes under the pulley 67, and is fixedly connected to the bottom of the telescopic arm 3.
[0040] When it is necessary to lift goods, the hydraulic motor 63 is started, which drives the hydraulic disc 62 fixed on the concave seat 61 to rotate. At this time, one end of the wire rope 65 wound on the hydraulic disc 62 tightens or loosens accordingly, while the other end of the wire rope 65 first passes over the guide wheel 64 at the end of the telescopic boom 3 to change the horizontal running direction, and then passes under the pulley 67 on the housing 66 to achieve a second change of direction, and finally connects to the bottom of the telescopic boom 3 to form a closed force system. Therefore, when the hydraulic disc 62 rotates forward to tighten the rope, the wire rope 65 will pull the hook 68 below the housing 66 to rise vertically to complete the lifting action through the guiding action of the guide wheel 64 and the pulley 67. When the hydraulic disc 62 rotates in reverse to release the rope, the wire rope 65 loosens and the hook 68 descends, thereby realizing the lifting and lowering operation of goods.
[0041] Example 2
[0042] Unlike Example 1, as Figure 2 , Figure 4 and Figure 5As shown, in order to guide the sliding of the telescopic boom 3 and reduce its friction with the fixed boom 2, the forklift lifting device also includes a notch 21 opened at the lower end of the fixed boom 2 near the telescopic boom 3 and a guide assembly 22 set at the notch 21 for guiding the sliding of the telescopic boom 3 and reducing sliding friction. The guide assembly 22 includes brackets 221 symmetrically fixed at the positions on both sides of the notch 21 of the fixed boom 2 and rollers 222 rotatably connected between the two brackets 221 and located at the notch 21 for rolling contact with the surface of the telescopic boom 3.
[0043] When the telescopic assembly 4 drives the telescopic arm 3 to slide within the fixed arm 2 to adjust the extension or retraction length, the roller 222 will rotate synchronously with the sliding of the telescopic arm 3. On the one hand, through its own rolling contact with the telescopic arm 3, it converts the sliding friction between the telescopic arm 3 and the fixed arm 2 into rolling friction, reducing the frictional resistance when the two slide relative to each other. On the other hand, the bracket 221 and the roller 222 cooperate to limit the lateral displacement of the telescopic arm 3 during the sliding process, which can guide the sliding direction of the telescopic arm 3, ensuring that the telescopic arm 3 always slides smoothly along the preset trajectory of the fixed arm 2, avoiding jamming due to displacement, and ensuring the smoothness of telescopic adjustment.
[0044] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A forklift lifting device with telescopic boom and multi-angle adjustment function, comprising a base (1), a fixed arm (2) hinged to the base (1), a telescopic arm (3) passing through the fixed arm (2) away from the base (1) and slidably connected in the fixed arm (2), and a telescopic component (4) disposed on the fixed arm (2) for driving the telescopic arm (3) to extend and retract. Its features are: The forklift lifting device also includes an adjustment assembly (5) disposed on the base (1) and connected to the fixed arm (2) for adjusting the height and angle of the fixed arm (2) and the telescopic arm (3), and a wire lifting structure (6) disposed on the fixed arm (2) and the telescopic arm (3) for lifting and lowering goods.
2. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 1, characterized in that: The base (1) is screwed with a locking screw (11) for fixing the base (1) to the forklift.
3. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 1, characterized in that: The telescopic assembly (4) includes a fixed groove (41) fixedly installed above the fixed arm (2) near the base (1), a hydraulic cylinder (42) fixedly installed in the fixed groove (41), and a connecting seat (43) fixedly installed above the telescopic arm (3) away from the fixed arm (2). The piston rod of the hydraulic cylinder (42) is fixedly connected to the connecting seat (43).
4. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 3, characterized in that: The adjustment assembly (5) includes a fixed seat (51) fixedly installed on the base (1) at a position corresponding to the lower position of the fixed arm (2), a hydraulic cylinder (52) hinged on the fixed seat (51), and a fixed seat (53) fixedly installed at the bottom of the fixed arm (2). The piston rod of the hydraulic cylinder (52) is hinged on the fixed seat (53).
5. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 3, characterized in that: The wire hoisting structure (6) includes a wire rope (65), a concave seat (61) fixedly installed above the fixed groove (41), a hydraulic disc (62) rotatably connected to the concave seat (61), a hydraulic motor (63) fixedly installed on one side of the concave seat (61) for driving the hydraulic disc (62) to rotate, a guide wheel (64) rotatably connected to one end of the telescopic arm (3) away from the fixed arm (2), a housing (66) located below the guide wheel (64), a pulley (67) rotatably connected to the housing (66), and a hook (68) fixedly installed on the housing (66) corresponding to the position below the pulley (67). One end of the wire rope (65) is wound around the hydraulic disc (62) and fixedly connected to the hydraulic disc (62), and the other end passes over the guide wheel (64), passes under the pulley (67), and is fixedly connected to the bottom of the telescopic arm (3).
6. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 1, characterized in that: The forklift lifting device also includes a notch (21) located below one end of the fixed arm (2) near the telescopic arm (3) and a guide assembly (22) provided at the notch (21) for sliding guidance of the telescopic arm (3) and reducing sliding friction.
7. The forklift lifting device with telescopic boom and multi-angle adjustment function according to claim 6, characterized in that: The guide assembly (22) includes brackets (221) symmetrically fixed at positions on both sides of the fixed arm (2) corresponding to the notch (21) and rollers (222) rotatably connected between the two brackets (221) and located at the notch (21) for rolling contact with the surface of the telescopic arm (3).