Side limiting device for wagon balance
By setting U-shaped grooves, limit plates, and buffer pads on the weighbridge to absorb the impact force of vehicles, and combining them with side limit components to prevent lateral deviation, the problem of easy damage to weighbridge sensors is solved, and the long life and stable use of the equipment are achieved.
Patent Information
- Application Number
- CN202520362263.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing side limit devices for weighbridges are inadequate for buffering the impact forces during vehicle movement, resulting in a reduced sensor lifespan.
A side limiting device for a weighbridge was designed, including a U-shaped groove, a limiting plate, and a buffer pad. The buffer pad absorbs the impact force through the contact of the vehicle tires, and the side limiting components and limiting rods prevent the weighbridge from shifting laterally.
It effectively reduces damage to the weighbridge sensors, extends the service life of the equipment, and prevents the weighbridge from shifting laterally, thus improving stability and efficiency.
Smart Images

Figure CN223841286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighbridge technology, specifically to a side limiting device for weighbridges. Background Technology
[0002] A weighbridge, also known as a truck scale, is a large scale set on the ground. It is usually used to weigh the tonnage of trucks and is the main weighing equipment used by factories, mines, and businesses for measuring bulk goods.
[0003] A Chinese utility model patent (Publication No.: 201921091435.6) discloses a side-limiting device for a weighbridge, relating to the field of weighbridge manufacturing technology. This side-limiting device includes an outer pit and a weighing platform. An embedded part is provided at the bottom of the inner cavity of the outer pit. A force-bearing device is fixedly connected to the inner wall of the outer pit on one side of the weighing platform by bolts. The force-bearing device is fixedly connected to the side of the weighing platform by bolts. This side-limiting device can be pre-installed and fixed, shipped as a standard part with the weighing platform equipment, reducing production costs. The movable groove on this structure is used to install bolts, allowing adjustment of the bolt installation position and bolt length. The bolts contact the weighing platform to prevent lateral displacement. Furthermore, the improved force-bearing device, compared to welded integrated connectors, enhances the stability and compressive strength of the structure, extends the service life of the device, reduces costs, improves work efficiency, and facilitates user operation.
[0004] However, in implementing the relevant technology, the following problems were found with the above-mentioned side limit device for weighbridges: the above technical solution is difficult to buffer the impact force generated by the vehicle driving on the weighbridge. Over time, the weighbridge sensor is easily affected, resulting in a reduction in the service life of the weighbridge sensor. Therefore, a side limit device for weighbridges is proposed. Utility Model Content
[0005] This utility model proposes a side limiting device for weighbridges, which solves the problem in related technologies of the difficulty in buffering the impact force generated by vehicles driving on weighbridges.
[0006] The technical solution of this utility model is as follows: A side limiting device for a weighbridge, comprising:
[0007] Foundation, and weighbridge body fixedly installed on the inner wall of the bottom of the foundation;
[0008] The U-shaped groove is formed on the top of the weighbridge body. A limiting plate is detachably connected inside the U-shaped groove, and a buffer pad is fixedly installed on the top of the limiting plate.
[0009] The box body is fixedly installed on the bottom inner wall of the foundation. A lifting frame is slidably connected through the inside of the box body. A connecting plate is fixedly installed on the top of the lifting frame. A side limiting component one and a side limiting component two are respectively provided through one side of the connecting plate.
[0010] Preferably, the side limiting component includes a screw, a circular plate, and a limiting groove. The screw is installed through one side of the connecting plate, the circular plate is rotatably connected to one end of the screw, and the limiting groove is formed through one side of the circular plate.
[0011] Preferably, a limit rod is fixedly installed on both sides of the weighbridge body, and the limit rod is inserted into the limit groove.
[0012] Preferably, the second side limiting component includes a second screw, a second circular plate, and a second limiting groove. The second screw is installed through one side of the connecting plate, the second circular plate is rotatably connected to one end of the second screw, and the second limiting groove is opened through one side of the second circular plate.
[0013] Preferably, limit rods are fixedly installed on both sides of the inner wall of the foundation, and the limit rods are inserted into the limit grooves.
[0014] Preferably, a screw three is rotatably connected inside the box body, the lifting frame is threadedly connected to the screw three, a worm gear is fixedly installed on the outer side wall of the screw three, a worm is rotatably connected inside the box body, and the worm and the worm gear are meshed together.
[0015] Preferably, a cover plate is inserted into the top of the foundation, a rectangular plate is fixedly installed at the bottom of the cover plate, a rectangular groove is opened in the top of the foundation, and the rectangular plate is inserted into the rectangular groove.
[0016] Preferably, the top of the limiting plate has a through-hole fixing groove one, and the top of the U-shaped groove has a fixing groove two.
[0017] The working principle and beneficial effects of this utility model are as follows:
[0018] 1. Through the U-shaped groove, limiting plate and buffer pad, when a vehicle passes over the weighbridge body, the vehicle tires contact the buffer pad, which absorbs the impact force generated by the vehicle during driving, reduces the damage to the weighbridge body sensors, and thus extends the service life of the equipment.
[0019] 2. By setting up side limit component one, side limit component two, limit rod one and limit rod two, rotating side limit component one and limit rod one to insert them together, side limit component one is tightly attached to the weighbridge body, rotating side limit component two and limit rod two to insert them together, so that side limit component two is tightly attached to the foundation, thereby preventing the weighbridge body from shifting laterally. Attached Figure Description
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0022] Figure 2 This is a three-dimensional structural diagram of the weighbridge body of this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the box body of this utility model;
[0024] Figure 4 This is a cross-sectional view of the box structure of this utility model;
[0025] Figure 5 This is a three-dimensional structural diagram of the cover plate of this utility model;
[0026] In the diagram: 1. Foundation; 2. Weighbridge body; 3. U-shaped groove; 4. Limiting plate; 5. Buffer pad; 6. Box; 7. Lifting frame; 8. Connecting plate; 9. Side limiting component one; 91. Screw one; 92. Circular plate one; 93. Limiting groove one; 10. Side limiting component two; 101. Screw two; 102. Circular plate two; 103. Limiting groove two; 11. Limiting rod one; 12. Limiting rod two; 13. Screw three; 14. Worm gear; 15. Worm; 16. Rectangular groove; 17. Cover plate; 18. Rectangular plate; 19. Fixing groove one; 20. Fixing groove two. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1 - Figure 5 The present invention provides a side limiting device for a weighbridge, comprising:
[0029] Foundation 1, weighbridge body 2 fixedly installed on the inner wall at the bottom of foundation 1;
[0030] U-shaped groove 3 is located on the top of the weighbridge body 2. The inside of the U-shaped groove 3 is detachably connected to a limit plate 4. A buffer pad 5 is fixedly installed on the top of the limit plate 4.
[0031] Box 6 is fixedly installed on the bottom inner wall of foundation 1. Lifting frame 7 is slidably connected through the inside of box 6. Connecting plate 8 is fixedly installed on the top of lifting frame 7. Side limiting component 1 9 and side limiting component 2 10 are respectively provided through one side of connecting plate 8. Screw 3 13 is rotatably connected inside box 6. Lifting frame 7 and screw 3 13 are threadedly connected. Worm wheel 14 is fixedly installed on the outer side wall of screw 3 13. Worm 15 is rotatably connected inside box 6. Worm 15 and worm wheel 14 are meshed together.
[0032] The box 6 is installed on the inner wall of the bottom of the foundation 1. The worm gear 15 is rotated to drive the worm wheel 14 and the screw 13 to rotate. The screw 13 drives the lifting frame 7 and the connecting plate 8 to move upward to a suitable height. The rotating side limit component 19 is in close contact with the weighbridge body 2, and the rotating side limit component 20 is in close contact with the foundation 1. Under the action of the side limit component 19 and the side limit component 20, the weighbridge body 2 is limited on both sides to prevent the weighbridge body 2 from shifting laterally. When a vehicle passes over the weighbridge body 2, the vehicle tires contact the buffer pad 5 to absorb the impact force generated by the vehicle during driving and reduce the damage to the sensors of the weighbridge body 2.
[0033] Specifically, the side limiting component 9 includes a screw 91, a circular plate 92 and a limiting groove 93. The screw 91 is installed through one side of the connecting plate 8. The circular plate 92 is rotatably connected to one end of the screw 91. The limiting groove 93 is opened through one side of the circular plate 92. Limiting rods 11 are fixedly installed on both sides of the weighbridge body 2. The limiting rods 11 and the limiting grooves 93 are interlocked.
[0034] Rotating screw 91 moves circular plate 92, causing circular plate 92 to move and engage with limiting groove 93, which in turn engages with limiting rod 11. Circular plate 92 is then tightly pressed against the weighbridge body 2 for positioning.
[0035] Specifically, the side limiting component 2 10 includes a screw 2 101, a circular plate 2 102 and a limiting groove 2 103. The screw 2 101 is installed through one side of the connecting plate 8. The circular plate 2 102 is rotatably connected to one end of the screw 2 101. The limiting groove 2 103 is opened through one side of the circular plate 2 102. Limiting rods 2 12 are fixedly installed on both sides of the inner wall of the foundation 1. The limiting rods 2 12 and the limiting grooves 2 103 are interlocked.
[0036] Rotating screw 101 drives circular plate 102 to move. Circular plate 102 drives limiting groove 103 to engage with limiting rod 12, making circular plate 102 fit tightly against foundation 1 for limiting. Under the action of screw 91 and screw 101, both sides of the weighbridge body 2 are limited to prevent lateral displacement of the weighbridge body 2.
[0037] Specifically, a cover plate 17 is inserted into the top of the foundation 1, a rectangular plate 18 is fixedly installed at the bottom of the cover plate 17, and a rectangular groove 16 is opened in the top of the foundation 1, with the rectangular plate 18 and the rectangular groove 16 being inserted into each other.
[0038] The rectangular plate 18 at the bottom of the cover plate 17 is inserted into the rectangular groove 16, so that the cover plate 17 covers the foundation 1 and plays a protective role.
[0039] Specifically, the top of the limiting plate 4 is provided with a fixing groove 19, and the top of the U-shaped groove 3 is provided with a fixing groove 20.
[0040] Bolts are used to connect the fixing groove 19 and the fixing groove 20. The limiting plate 4 is installed in the U-shaped groove 3. When the buffer pad 5 needs to be replaced, the bolts are removed to detach the fixing groove 19 and the fixing groove 20, and the limiting plate 4 is removed to replace the buffer pad 5.
[0041] 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.
Claims
1. A side limiting device for a weighbridge, characterized in that, include: Foundation (1), and weighbridge body (2) fixedly installed on the inner wall of the bottom of the foundation (1); The U-shaped groove (3) is opened on the top of the weighbridge body (2). The U-shaped groove (3) is detachably connected to the inside of the limiting plate (4). The top of the limiting plate (4) is fixedly installed with a buffer pad (5). The box body (6) is fixedly installed on the bottom inner wall of the foundation (1). The lifting frame (7) is slidably connected through the inside of the box body (6). A connecting plate (8) is fixedly installed on the top of the lifting frame (7). A side limiting component one (9) and a side limiting component two (10) are respectively provided through one side of the connecting plate (8).
2. The side limiting device for a weighbridge according to claim 1, characterized in that: The side limiting component 1 (9) includes a screw 1 (91), a circular plate 1 (92) and a limiting groove 1 (93). The screw 1 (91) is installed through one side of the connecting plate (8). The circular plate 1 (92) is rotatably connected to one end of the screw 1 (91). The limiting groove 1 (93) is opened through one side of the circular plate 1 (92).
3. A side limiting device for a weighbridge according to claim 2, characterized in that: Limiting rods (11) are fixedly installed on both sides of the weighbridge body (2), and the limiting rods (11) are inserted into the limiting grooves (93).
4. A side limiting device for a weighbridge according to claim 1, characterized in that: The second side limiting component (10) includes a second screw (101), a second circular plate (102), and a second limiting groove (103). The second screw (101) is installed through one side of the connecting plate (8). The second circular plate (102) is rotatably connected to one end of the second screw (101). The second limiting groove (103) is opened through one side of the second circular plate (102).
5. A side limiting device for a weighbridge according to claim 4, characterized in that: Limiting rods (12) are fixedly installed on both sides of the inner wall of the foundation (1), and the limiting rods (12) are inserted into the limiting grooves (103).
6. A side limiting device for a weighbridge according to claim 1, characterized in that: The box body (6) is rotatably connected to a screw three (13), the lifting frame (7) is threadedly connected to the screw three (13), a worm wheel (14) is fixedly installed on the outer wall of the screw three (13), a worm (15) is rotatably connected to the inside of the box body (6), and the worm (15) is meshed with the worm wheel (14).
7. A side limiting device for a weighbridge according to claim 1, characterized in that: A cover plate (17) is inserted into the top of the foundation (1), and a rectangular plate (18) is fixedly installed at the bottom of the cover plate (17). A rectangular groove (16) is opened on the top of the foundation (1), and the rectangular plate (18) is inserted into the rectangular groove (16).
8. A side limiting device for a weighbridge according to claim 1, characterized in that: The top of the limiting plate (4) is provided with a fixing groove 1 (19), and the top of the U-shaped groove (3) is provided with a fixing groove 2 (20).
Citation Information
Patent Citations
Side limiting device for wagon balance
CN209841157U