Carriage and frame positioning device
By combining a support frame, sliding plate, fixing screw, and locking nut, the problem of movement of the movable plate after the conical head and conical insertion hole are positioned is solved, achieving a stable connection between the carriage and the frame and improving the efficiency of the transportation equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YUANTONGHAO SPECIAL VEHICLE MFG CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, the conical head and conical insertion hole lack a locking and fixing structure after positioning, which makes the movable plate easy to move up and down or left and right, affecting the connection stability between the car body and the frame.
The system employs a combination structure of support frame, sliding plate, fixing screw and locking nut. It utilizes the elasticity of spring to adjust the docking offset and secures the movable plate to the carriage by locking the fixing screw and locking nut.
This improves the stability of the connection between the carriage and the frame, prevents the movable plate from moving during the docking process, and enhances the flexibility and stability of positioning.
Smart Images

Figure CN224241125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transportation equipment technology, specifically to a positioning device for a carriage and a frame. Background Technology
[0002] Transportation equipment is the carrier for transporting goods from one place to another, and it is a tool for transportation. Currently, in order to address the problem of low efficiency in transporting goods by loading and unloading, a device for loading and unloading boxes by installing a hook-lift on the chassis beam has been designed, which can solve the problem of high-efficiency utilization of transport vehicles.
[0003] Currently, Chinese patent CN219821290U discloses a quick positioning and connection / separation structure for a detachable vehicle body and chassis beam. This structure includes a chassis beam fixing plate located on the upper end of the chassis beam and a body fixing plate connected to the front end of the vehicle body. The chassis beam fixing plate and the body fixing plate are fixedly connected via a plug-in structure. A movable plate is connected to the chassis beam fixing plate via a first spring. A tapered shape is provided on the outer end face of the movable plate. However, in the aforementioned patent, after the tapered head and tapered insertion hole are positioned, there is no structure to lock and fix the movable plate, which easily causes the movable plate to move up and down or left and right, thus affecting the stability of the connection between the vehicle body and the frame. Therefore, we propose a vehicle body and frame positioning device to solve the above problems. Utility Model Content
[0004] This utility model proposes a positioning device for the carriage and the frame, which solves the problem in related technologies where, after the conical head and conical insertion hole are positioned, there is no structure to lock and fix the movable plate, which easily causes the movable plate to move up and down or left and right, thereby affecting the stability of the connection between the carriage and the frame.
[0005] The technical solution of this utility model is as follows:
[0006] A vehicle body and frame positioning device includes a vehicle body, a chassis beam located below the vehicle body, a fixing plate fixedly connected to the left side of the vehicle body, a conical block fixedly connected to the left side of the fixing plate, a support frame fixedly connected to the upper surface of the chassis beam, two sliding plates inside the support frame, a movable plate above the chassis beam, two or more support plates fixedly connected to the left side of the support frame, springs fixedly connected to the sides of the two support plates that are close to each other, and the ends of the two springs that are close to each other being fixedly connected to the sides of the two sliding plates that are far apart from each other, two strip holes opened on the outer surface of the support frame, two fixing screws fixedly connected to the outer surfaces of the two sliding plates, and locking nuts threadedly connected to the outer surfaces of the two sets of fixing screws.
[0007] The ends of the two sets of fixing screws that are far apart from each other pass through the strip hole and extend to the outside of the strip hole, while the ends of the two sets of locking nuts that are close to each other are in contact with the outer surface of the support frame.
[0008] Two fixing blocks are fixedly connected to the outer surface of the chassis beam, and the two fixing blocks are fixedly connected to the outer surface of the support frame on their sides that are close to each other.
[0009] Two mounting plates are fixedly connected to the outer surface of the movable plate. Quick-connect females are fixedly installed on the right side of both mounting plates. Quick-connect males are fixedly connected to the left side of the vehicle body, and the outer surface of the quick-connect males is adapted to the inner wall of the quick-connect females.
[0010] Two reinforcing blocks are fixedly connected to the left side of the movable plate, and the sides of the two reinforcing blocks that are close to each other are fixedly connected to the sides of the two sliding plates that are far apart from each other.
[0011] The outer surfaces of both sliding plates are slidably connected to the inner wall of the support frame, and the right sides of both sliding plates are fixedly connected to the left side of the movable plate.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, the elasticity of the spring, combined with the cooperation of two sliding plates, allows the movable plate to move flexibly up and down. This enables adjustments when there is a misalignment in the height of the conical block and the conical hole, improving the flexibility of positioning. Furthermore, the two strip holes on the support frame, along with the cooperation of two fixing screws and two locking nuts, allow for the locking and fixing of the fixing screws and sliding plates, making the connection between the movable plate and the vehicle body more stable. After the conical head and the conical insertion hole are positioned, the device has a structure for locking and fixing the movable plate, preventing the movable plate from moving up and down or left and right, and improving the stability of the connection between the vehicle body and the frame. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] Figure 1 This is a three-dimensional structural schematic diagram of a car body and frame positioning device according to the present invention (top view).
[0016] Figure 2 This is a three-dimensional structural schematic diagram of the movable plate on the right side of the positioning device for a car body and a car frame according to the present invention.
[0017] Figure 3 This is a three-dimensional structural schematic diagram of the movable plate on the left side of the positioning device for a car body and a car frame according to the present invention.
[0018] Figure 4 This is a sectional view of the support frame in the positioning device for the carriage and frame of this utility model.
[0019] In the diagram: 1. Vehicle body; 2. Chassis beam; 3. Fixing plate; 4. Conical block; 5. Quick-connect fitting; 6. Movable plate; 7. Conical hole; 8. Support frame; 9. Mounting plate; 10. Quick-connect female connector; 11. Strip hole; 12. Fixing screw; 13. Locking nut; 14. Sliding plate; 15. Support plate; 16. Spring; 17. Fixing block; 18. Reinforcing block. Detailed Implementation
[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example
[0021] like Figures 1-4 As shown, this embodiment proposes a vehicle body and frame positioning device, including a vehicle body 1, a chassis beam 2 below the vehicle body 1, a fixing plate 3 fixedly connected to the left side of the vehicle body 1, a conical block 4 fixedly connected to the left side of the fixing plate 3, a support frame 8 fixedly connected to the upper surface of the chassis beam 2, two sliding plates 14 inside the support frame 8, a movable plate 6 above the chassis beam 2, two support plates 15 fixedly connected to the left side of the support frame 8, springs 16 fixedly connected to the sides of the two support plates 15 that are close to each other, and the ends of the two springs 16 that are close to each other fixedly connected to the sides of the two sliding plates 14 that are far apart from each other. Two strip holes 11 are opened on the outer surface of the support frame 8, and two fixing screws 12 are fixedly connected to the outer surfaces of the two sliding plates 14. Locking nuts 13 are threadedly connected to the outer surfaces of the two sets of fixing screws 12.
[0022] In this embodiment, the two strip holes 11 provided in the support frame 8, together with the two fixing screws 12 and the two locking nuts 13, can lock and fix the fixing screws 12 and the sliding plate 14, which will make the connection between the movable plate 6 and the vehicle body 1 more stable. With the cooperation of the spring 16 and the sliding plate 14, adjustments can be made when there is a deviation in the docking height. Example
[0023] like Figures 1-4As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the ends of the two sets of fixing screws 12 that are far apart from each other pass through the strip hole 11 and extend to the outside of the strip hole 11, the ends of the two sets of locking nuts 13 that are close to each other are in contact with the outer surface of the support frame 8, the outer surface of the chassis beam 2 is fixedly connected to two fixing blocks 17, the sides of the two fixing blocks 17 that are close to each other are fixedly connected to the outer surface of the support frame 8, the outer surface of the movable plate 6 is fixedly connected to two mounting plates 9, the right side of the two mounting plates 9 is fixedly installed with quick-connect females 10, the left side of the vehicle body 1 is fixedly connected with quick-connect males 5, and the outer surface of the quick-connect males 5 is adapted to the inner wall of the quick-connect females 10.
[0024] In this embodiment, the connection between the chassis beam 2 and the support frame 8 can be deepened by setting two fixing blocks 17, which will make the support frame 8 more stable when supporting the work. The quick-connect female seat 10 provided on the mounting plate 9 and the quick-connect female head 5 can be engaged and connected. The quick automatic plugging and unplugging function can be realized by the cylinder, air pipe or circuit.
[0025] Two reinforcing blocks 18 are fixedly connected to the left side of the movable plate 6. The sides of the two reinforcing blocks 18 that are close to each other are fixedly connected to the sides of the two sliding plates 14 that are far apart from each other. The outer surfaces of the two sliding plates 14 are slidably connected to the inner wall of the support frame 8. The right sides of the two sliding plates 14 are fixedly connected to the left side of the movable plate 6.
[0026] In this embodiment, the connection between the movable plate 6 and the sliding plate 14 is deepened by the reinforcing block 18, which enhances the firmness between the two. The sliding plate 14 will provide more stable support for the movable plate 6 by sliding on the inner wall of the support frame 8.
[0027] The working principle of this utility model is as follows: First, the vehicle body 1 is moved to the left, and the conical block 4 is positioned on the right side of the conical hole 7. Then, the conical block 4 is slowly inserted into the conical hole 7. Through the elasticity of the spring 16, adjustments are made when there is a misalignment in the docking height between the conical block 4 and the conical hole 7 on the movable plate 6. Then, the quick connector 5 and the quick connector 10 are connected. Next, the locking nut 13 is removed, and the locking nut 13 is rotated on the surface of the fixing screw 12. This will lock the fixing screw 12 and the sliding plate 14 with the locking nut 13, making the connection between the movable plate 6 and the vehicle body 1 more stable.
[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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.
Claims
1. A positioning device for a carriage and a frame, characterized in that, The system includes a vehicle body (1), a chassis beam (2) is provided below the vehicle body (1), a fixing plate (3) is fixedly connected to the left side of the vehicle body (1), a conical block (4) is fixedly connected to the left side of the fixing plate (3), a support frame (8) is fixedly connected to the upper surface of the chassis beam (2), two sliding plates (14) are provided inside the support frame (8), a movable plate (6) is provided above the chassis beam (2), two support plates (15) are fixedly connected to the left side of the support frame (8), springs (16) are fixedly connected to the side of the two support plates (15) that are close to each other, and the ends of the two springs (16) that are close to each other are fixedly connected to the side of the two sliding plates (14) that are far from each other. Two strip holes (11) are opened on the outer surface of the support frame (8), two fixing screws (12) are fixedly connected to the outer surface of the two sliding plates (14), and locking nuts (13) are threadedly connected to the outer surface of the two sets of fixing screws (12).
2. The positioning device for a car body and a car frame according to claim 1, characterized in that, The ends of the two sets of fixing screws (12) that are far apart from each other pass through the strip hole (11) and extend to the outside of the strip hole (11), while the ends of the two sets of locking nuts (13) that are close to each other are in contact with the outer surface of the support frame (8).
3. The positioning device for a car body and a car frame according to claim 1, characterized in that, Two fixing blocks (17) are fixedly connected to the outer surface of the chassis beam (2), and the two fixing blocks (17) are fixedly connected to the outer surface of the support frame (8) on the side that is close to each other.
4. The positioning device for a car body and a car frame according to claim 1, characterized in that, Two mounting plates (9) are fixedly connected to the outer surface of the movable plate (6). A quick-connect female (10) is fixedly installed on the right side of both mounting plates (9). A quick-connect male (5) is fixedly connected to the left side of the vehicle body (1), and the outer surface of the quick-connect male (5) is adapted to the inner wall of the quick-connect female (10).
5. The positioning device for a car body and a car frame according to claim 1, characterized in that, Two reinforcing blocks (18) are fixedly connected to the left side of the movable plate (6), and the side of the two reinforcing blocks (18) that are close to each other are fixedly connected to the side of the two sliding plates (14) that are far apart from each other.
6. The positioning device for a car body and a car frame according to claim 1, characterized in that, The outer surfaces of both sliding plates (14) are slidably connected to the inner wall of the support frame (8), and the right side of both sliding plates (14) is fixedly connected to the left side of the movable plate (6).