Draw arm frame with telescopic vertical arm for loading draw arm
By using the telescopic cylinders and camera-assisted positioning of the telescopic boom, the problem of fixed boom structures being difficult to adapt to cargo boxes of different sizes has been solved, achieving stable loading and unloading and improved clarity for nighttime operations.
Patent Information
- Application Number
- CN202423281997.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing fixed structure on the boom lift is difficult to adapt to different sizes of cargo boxes or containers, resulting in reduced applicability.
It adopts a telescopic boom frame, and the telescopic boom is driven by a telescopic cylinder to adjust the length. With the help of a grab hook and a camera for positioning, it can stably load and unload cargo boxes of different heights.
It enables stable loading and unloading of cargo boxes of different sizes, improves applicability, and enhances the clarity of camera images during nighttime operations, ensuring accurate connection between the grab and the cargo box.
Smart Images
Figure CN223494379U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hooklift trucks, and more particularly to a telescopic hooklift frame with a vertical arm for hooklift mounting. Background Technology
[0002] The hook-lift device is an important component installed on the truck chassis, mainly used for loading and unloading cargo boxes. The system is equipped with a hydraulic lifting device that can detach the cargo box from the subframe or pull it onto the subframe. The hook-lift device can also be used for self-unloading cargo boxes (the hydraulic self-unloading lock must be engaged during self-unloading).
[0003] Currently, traditional hooklift top-mounted structures on the market are mainly fixed structures, suitable for cargo boxes or containers of fixed size and weight. However, in actual use, due to the differences in the height and loading position of cargo boxes or containers in different operating scenarios, fixed hooklift top-mounted structures are difficult to adapt to cargo boxes or containers of different sizes, resulting in reduced applicability. Utility Model Content
[0004] To address the aforementioned issues, this application provides a telescopic boom arm for use with a vertical boom.
[0005] The technical solution provided in this application for a telescopic boom arm for boom mounting is as follows:
[0006] A telescopic boom arm for use with a vertical boom includes a vehicle frame and a telescopic boom arm. The telescopic boom arm is equipped with an installation assembly for loading and unloading cargo boxes of different sizes. The installation assembly includes a receiving groove formed at the end of the telescopic boom arm away from the vehicle frame. A telescopic cylinder is installed in the receiving groove. A telescopic vertical arm is slidably disposed in the receiving groove. One end of the telescopic vertical arm located in the receiving groove is connected to the output end of the telescopic cylinder. A grab hook is fixedly connected to the end of the telescopic vertical arm away from the receiving groove.
[0007] By adopting the above technical solution, when the L-arm mounted on the pull arm flips to hook the box, the telescopic cylinder is activated to move the telescopic vertical arm within the receiving slot. The extension length of the telescopic vertical arm is adjusted so that the grab hook can hook the box according to the position of the pull ring on the box of different heights. Then, when the L-arm mounted on the pull arm hooks the box onto the vehicle frame, the extension length of the telescopic vertical arm is adjusted according to the height of the box to control the lifting height of the box, so that the box is stably placed on the vehicle frame. This avoids the problem of fixed pull arm structures being difficult to adapt to different sizes of boxes or containers, which reduces applicability.
[0008] Preferably, a rear roller for assisting the movement of the cargo box is rotatably connected to one side of the upper surface of the vehicle frame.
[0009] By adopting the above technical solution, when the cargo box is pulled onto the chassis, the rear rollers can support the cargo box, assist in the movement of the cargo box, and prevent the cargo box from contacting the chassis and causing wear to the chassis.
[0010] Preferably, two clamping plates are fixedly connected to the side walls of the telescopic vertical arm. A clamping groove is formed on the side wall of the clamping plate away from the telescopic vertical arm. A square nylon slider is fixedly connected in the clamping groove. The side wall of the square nylon slider away from the clamping groove is in contact with the inner wall of the receiving groove. Two bushings are fixedly connected to the side walls of the L-arm mounted on the pull arm. A rotating stud is installed in each bushing. A circular nylon slider is fixedly connected to one end of the rotating stud. The end of the circular nylon slider away from the rotating stud is in contact with the side wall of the telescopic vertical arm.
[0011] By adopting the above technical solution, using square and round nylon sliders, the telescopic vertical arm can be made more stable to slide within the receiving groove and securely fixed in the required position.
[0012] Preferably, multiple triangular support blocks are fixedly connected to the side walls of both sides of the grab hook, and one side wall of the triangular support block is fixedly connected to the telescopic vertical arm.
[0013] By adopting the above technical solution, the stability of the grab hook can be improved by using the triangular support block, preventing the grab hook from breaking off from the telescopic vertical arm and causing damage to the grab hook.
[0014] Preferably, a mounting block is fixedly connected to one side wall of the grab hook, and a camera is mounted on the upper surface of the mounting block to facilitate the grab hook's alignment with the cargo box pull ring.
[0015] By adopting the above technical solution, the camera can be connected to the display system inside the hooklift truck to transmit the images captured by the camera, assist the driver in operation, determine the position of the hook, and facilitate the connection of the hook to the pull ring on the cargo box.
[0016] Preferably, a supplementary light is fixedly connected to the upper surface of the mounting block on one side of the camera.
[0017] By adopting the above technical solution, the supplementary lighting can improve the clarity of the camera footage during nighttime operations, preventing the image from being too dark and making it difficult to confirm the position between the hook and the cargo box.
[0018] In summary, this application includes at least one of the following beneficial technical effects:
[0019] 1. This application utilizes the coordinated design of structures such as a receiving groove, a telescopic cylinder, and a telescopic vertical arm. During use, when the L-arm mounted on the pull arm flips to hook the box, the telescopic cylinder is activated to move the telescopic vertical arm within the receiving groove. The extension length of the telescopic vertical arm is adjusted so that the grab hook can hook the box according to the position of the pull ring on the box of different heights. Then, when the L-arm mounted on the pull arm hooks the box onto the vehicle frame, the extension length of the telescopic vertical arm is adjusted according to the height of the box to control the lifting height of the box, ensuring that the box is stably placed on the vehicle frame. This avoids the problem of fixed pull arm structures being difficult to adapt to different sizes of boxes or containers, which reduces applicability.
[0020] 2. By connecting the camera to the display system inside the hooklift truck, the images captured by the camera can be transmitted to assist the driver in operation, determine the position of the hook, and facilitate the connection between the hook and the pull ring on the cargo box. At the same time, the supplementary light can improve the clarity of the camera image when working at night, preventing the image from being too dark and making it difficult to confirm the position between the hook and the cargo box. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a telescopic vertical arm boom frame for boom mounting according to an embodiment of this application;
[0022] Figure 2 This is a schematic diagram illustrating the connection structure between the L-arm on the upper part of the boom and the telescopic vertical arm, which is the main embodiment of this application.
[0023] Figure 3 This is a schematic diagram illustrating the exploded structure of the L-arm and telescopic vertical arm on the upper part of the boom, which is the main embodiment of this application.
[0024] Figure 4 The embodiments of this application mainly embody Figure 3 A schematic diagram of the enlarged structure of region A in the middle;
[0025] Figure 5 The embodiments of this application mainly embody Figure 2 A schematic diagram of the enlarged structure of region B in the middle.
[0026] Reference numerals: 1. Frame; 2. L-arm mounted on the upper arm; 3. Receiving slot; 4. Telescopic cylinder; 5. Telescopic vertical arm; 6. Grab hook; 7. Rear roller; 8. Clamping plate; 9. Clamping slot; 10. Square nylon slider; 11. Bushing; 12. Rotary stud; 13. Circular nylon slider; 14. Triangular support block; 15. Mounting block; 16. Camera; 17. Fill light. Detailed Implementation
[0027] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.
[0028] This application discloses a telescopic boom frame with a vertical arm for mounting a boom.
[0029] Reference Figure 1 , Figure 2 and Figure 3 A telescopic boom arm for boom lift includes a frame 1 and a boom lift L-arm 2 mounted on a boom lift vehicle. The frame 1 is equipped with a hydraulic lifting device for driving the boom lift L-arm 2 to tilt, so that the boom lift L-arm 2 can load and unload cargo boxes. The boom lift L-arm 2 is equipped with an installation component for loading and unloading cargo boxes of different sizes. The installation component includes a receiving groove 3, a telescopic cylinder 4, a telescopic vertical arm 5, and a grab hook 6.
[0030] The receiving groove 3 is located at the end of the telescopic arm where the L-arm 2 is mounted, away from the frame 1. The telescopic cylinder 4 is located in the receiving groove 3 and is equipped with a hydraulic locking valve. The inner walls of the receiving groove 3 are welded with first bearing seats. The fixed end of the telescopic cylinder 4 is hinged to the first bearing seat via a first pin and installed in the receiving groove 3. The telescopic vertical arm 5 is slidably located in the receiving groove 3. The bottom end of the telescopic vertical arm 5 has a mounting hole. The inner walls of the mounting hole are welded with second bearing seats. The free end of the telescopic cylinder 4 is hinged to the second bearing seat via a second pin, so that the telescopic vertical arm 5 is connected to the telescopic cylinder 4. The grab hook 6 is fixedly connected to the end of the telescopic vertical arm 5 away from the receiving groove 3 for connection with the cargo box pull ring.
[0031] Reference Figure 1 A rear roller 7 is rotatably connected to one side of the upper surface of the frame 1 to assist the movement of the cargo box. When the cargo box is pulled onto the frame 1, the rear roller 7 can support the cargo box, assist the movement of the cargo box, and prevent the cargo box from contacting the frame 1 and causing wear to the frame 1.
[0032] Reference Figure 2 , Figure 3 and Figure 4 Two clamping plates 8 are fixedly connected to the side walls of the telescopic vertical arm 5. A clamping groove 9 is opened on the side wall of the clamping plate 8 away from the telescopic vertical arm 5. A square nylon slider 10 is fixedly connected in the clamping groove 9. The side wall of the square nylon slider 10 away from the clamping groove 9 is in contact with the inner wall of the receiving groove 3. Two bushings 11 are fixedly connected to the side walls of the L-arm 2 mounted on the pull arm. A rotating stud 12 is installed in each bushing 11. A circular nylon slider 13 is fixedly connected to one end of the rotating stud 12. The end of the circular nylon slider 13 away from the rotating stud 12 is in contact with the side wall of the telescopic vertical arm 5. Through the square nylon slider 10 and the circular nylon slider 13, the stability of the telescopic vertical arm 5 in sliding in the receiving groove 3 can be improved, and it can be safely fixed in the required position.
[0033] Reference Figure 5Multiple triangular support blocks 14 are fixedly connected to the side walls of both sides of the grab hook 6. One side wall of the triangular support block 14 is fixedly connected to the telescopic vertical arm 5. The triangular support block 14 can improve the stability of the grab hook 6 and prevent the grab hook 6 from breaking away from the telescopic vertical arm 5, which would cause the grab hook 6 to be damaged.
[0034] Reference Figure 5 A mounting block 15 is fixedly connected to one side wall of the hook 6. A camera 16 is installed on the upper surface of the mounting block 15 to facilitate the hook 6 to be aligned with the pull ring on the cargo box. The camera 16 is wirelessly connected to the display system inside the hook-lift truck. By connecting the camera 16 to the display system inside the hook-lift truck, the image captured by the camera 16 can be transmitted to assist the driver in operation, determine the position of the hook 6, and facilitate the connection of the hook 6 with the pull ring on the cargo box.
[0035] Reference Figure 5 A supplementary light 17 is fixedly connected to the upper surface of the mounting block 15 on one side of the camera 16. The supplementary light 17 can improve the clarity of the image captured by the camera 16 when working at night, and prevent the image from being too dark, making it difficult to confirm the position between the grab hook 6 and the cargo box.
[0036] The implementation principle of the telescopic boom arm for a boom lift assembly according to this application embodiment is as follows: During use, when the L-arm 2 on the boom lift assembly flips to hook the cargo box, the telescopic cylinder 4 is activated, causing the telescopic vertical arm 5 to move within the receiving groove 3. The extension length of the telescopic vertical arm 5 is adjusted so that the grab hook 6 can hook the cargo box according to the position of the pull ring on the cargo box of different heights. Then, when the L-arm 2 on the boom lift assembly hooks the cargo box onto the vehicle frame 1, the extension length of the telescopic vertical arm 5 is adjusted according to the height of the cargo box to control the lifting height of the cargo box and ensure its stability. The hook 6 is fixed on the frame 1. At the same time, by connecting the camera 16 to the display system inside the hook arm, the image captured by the camera 16 can be transmitted to assist the driver in operation and determine the position of the hook 6. This facilitates the connection between the hook 6 and the pull ring on the cargo box. The supplementary light 17 can improve the clarity of the image captured by the camera 16 when working at night, preventing the image from being too dark and making it difficult to confirm the position between the hook 6 and the cargo box. This avoids the problem that the fixed structure of the hook arm is difficult to adapt to cargo boxes or containers of different sizes, which reduces its applicability.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A telescopic boom arm for use with a boom lift, comprising a vehicle frame (1) and a boom lift L-arm (2), wherein the boom lift L-arm (2) is provided with mounting components for loading and unloading cargo boxes of different sizes, characterized in that: The mounting assembly includes a receiving groove (3) formed on the arm on which an L-arm (2) is mounted, away from the frame (1). A telescopic cylinder (4) is installed in the receiving groove (3). A telescopic vertical arm (5) is slidably arranged in the receiving groove (3). One end of the telescopic vertical arm (5) located in the receiving groove (3) is connected to the output end of the telescopic cylinder (4). A hook (6) is fixedly connected to the end of the telescopic vertical arm (5) away from the receiving groove (3).
2. The telescopic boom arm for mounting a boom arm according to claim 1, characterized in that: The upper surface of the frame (1) is rotatably connected to a rear roller (7) for assisting the movement of the cargo box.
3. A telescopic boom arm for mounting a boom arm according to claim 2, characterized in that: Two clamping plates (8) are fixedly connected to the side walls of the telescopic vertical arm (5). A clamping groove (9) is provided on the side wall of the clamping plate (8) away from the telescopic vertical arm (5). A square nylon slider (10) is fixedly connected in the groove (9). The side wall of the square nylon slider (10) away from the groove (9) is in contact with the inner wall of the receiving groove (3).
4. A telescopic boom frame with a vertical arm for mounting a boom according to claim 3, characterized in that: The upper arm is equipped with two bushings (11) fixedly connected to the side walls of the L-arm (2). Each bushing (11) is equipped with a rotating stud (12). One end of the rotating stud (12) is fixedly connected to a circular nylon slider (13). The end of the circular nylon slider (13) away from the rotating stud (12) is in contact with the side wall of the telescopic vertical arm (5).
5. A telescopic boom frame with a vertical arm for mounting a boom according to claim 4, characterized in that: Multiple triangular support blocks (14) are fixedly connected to the two side walls of the grab hook (6), and one side wall of the triangular support block (14) is fixedly connected to the telescopic vertical arm (5).
6. A telescopic boom frame with a vertical arm for mounting a boom according to claim 5, characterized in that: A mounting block (15) is fixedly connected to one side wall of the grab hook (6), and a camera (16) is mounted on the upper surface of the mounting block (15) to facilitate the grab hook (6) aligning with the cargo box pull ring.
7. A telescopic boom arm for mounting a boom arm according to claim 6, characterized in that: A fill light (17) is fixedly connected to the upper surface of the mounting block (15) on one side of the camera (16).