Butt joint structure of truck scale

By installing a rainproof docking mechanism between the weighing platforms of the truck scale, and using T-shaped limit slides and rubber sealing airbags to seal the gaps, the problem of bolt corrosion caused by rainwater seepage is solved, achieving waterproofing and convenient maintenance of the equipment.

CN224161937UActive Publication Date: 2026-04-24YUNNAN ZHENGLI WEIGHING APP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN ZHENGLI WEIGHING APP MFG CO LTD
Filing Date
2025-06-18
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing truck scales have gaps between the weighing platforms connected by bolts, which allows rainwater to easily seep in and cause bolt corrosion, affecting the service life of the equipment and increasing the difficulty of maintenance.

Method used

The rainproof docking mechanism is designed, including a T-shaped limiting slide, a rubber sealing airbag, and a snap-fit ​​assembly. It connects the bolt seat by rotation and sliding, uses the rubber sealing airbag to seal gaps, and the snap-fit ​​assembly adapts to thermal expansion and contraction to ensure stable docking.

Benefits of technology

It effectively prevents rainwater from seeping into the bolt seat, reduces the risk of corrosion, facilitates equipment disassembly and maintenance, and improves equipment durability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor truck scale equipment, in particular to a butt joint structure of a motor truck scale, which comprises a motor truck scale body, a bolt seat is welded on the motor truck scale body, a rainproof butt joint mechanism is arranged at the side part of the motor truck scale body, and the rainproof butt joint mechanism comprises a first T-shaped limiting sliding seat which is connected to the side part of the motor truck scale body in a sliding manner, and a second T-shaped limiting sliding seat is arranged on the first T-shaped limiting sliding seat. A support is integrally formed on the outer side of the first T-shaped limiting sliding seat, a sealing groove is formed in the inner side of the support, a rubber sealing air bag is installed on the inner wall of the sealing groove, the upper portion of the rubber sealing air bag communicates with an air nozzle, the upper portion of the air nozzle penetrates through the sealing groove and is exposed out of the upper portion of the support, and a clamping assembly is arranged on the outer side of the support. The waterproof sealing mechanism is moved downwards to enable the sealing groove to wrap and cover the bolt base, then air is injected into the rubber sealing air bag through the air nozzle, gaps between the assemblies can be effectively sealed, and the situation that rainwater permeates from the gaps between the assemblies, and consequently the bolt base and bolts are corroded and rusted is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of truck scale equipment technology, specifically a docking structure for a truck scale. Background Technology

[0002] A truck scale, also known as a weighbridge, is a large weighing 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. A truck scale is mainly composed of a weighing platform, a weighing display instrument, a weighing sensor, connecting parts, limit devices, and a junction box.

[0003] Truck scales are generally composed of multiple weighing platforms. Typically, considering factors such as transportation, ease of manufacturing, and strength, the length of a single weighing platform does not exceed 7 meters. Common truck scale lengths range from 5 to 30 meters. Therefore, multiple weighing platforms need to be combined to achieve the required length. The weighing platforms are usually connected by bolts. However, using bolts to connect the weighing platforms leaves gaps, allowing rainwater to seep through the gaps and corrode the bolts. Therefore, a digital truck scale docking structure needs to be designed. Utility Model Content

[0004] To overcome the shortcomings of existing technology, a rainproof docking mechanism is used to connect the two truck scale bodies. The rainproof docking mechanism can also cover the bolt seat to prevent rainwater from seeping in. This utility model proposes a docking structure for truck scales.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a docking structure for a truck scale, including a truck scale body, a bolt seat welded on the truck scale body, and a rainproof docking mechanism provided on the side of the truck scale body.

[0006] The rainproof docking mechanism is located above the bolt seat, and the rainproof docking mechanism includes a T-shaped limiting slide block that is slidably connected to the side of the truck scale body. A support is integrally formed on the outer side of the T-shaped limiting slide block. A sealing groove is formed on the inner side of the support. A rubber sealing airbag is installed on the inner wall of the sealing groove. An air nozzle is connected to the upper part of the rubber sealing airbag. The upper part of the air nozzle passes through the sealing groove and is exposed on the upper part of the support. A snap-fit ​​component is provided on the outer side of the support.

[0007] Preferably, a T-shaped limiting groove is provided on the outer side of the truck scale body, and the support is slidably connected to the side of the truck scale body through the cooperation of the T-shaped limiting groove and the T-shaped limiting seat. The edges of the T-shaped limiting seat are all rounded.

[0008] Preferably, the sealing groove has a double-sided open structure, and the rubber sealing airbag is fixed to the three inner walls of the sealing groove by waterproof adhesive, and the outer wall of the air nozzle is threaded with a limit ring.

[0009] Preferably, the outer side of the support is provided with a square groove, and the snap-fit ​​assembly includes a slider that is slidably connected in the groove.

[0010] Preferably, the groove has an installation slot inside, a compression spring is welded and fixed inside the installation slot, a guide rod is welded and fixed inside the slider, and the side of the guide rod is welded and fixed to the compression spring.

[0011] Preferably, four sets of mounting slots are symmetrically arranged, and through holes are provided on the outside of the mounting slots. The end of the guide rod is integrally formed with a limiting piece, and the diameter of the limiting piece is between the inner diameter of the mounting slot and the diameter of the through hole.

[0012] Preferably, the outer wall of the slider is provided with a T-shaped limiting groove, and a T-shaped limiting slide block is slidably connected to the outer side of the T-shaped limiting groove, and a toothed plate is welded and fixed to the outer side of the T-shaped limiting slide block.

[0013] The advantages of this utility model are:

[0014] 1. This utility model achieves docking by setting a rainproof docking mechanism between two truck scale bodies. One side of the T-shaped limiting slide in the rainproof docking mechanism has a circular structure, which allows the rainproof docking mechanism to be quickly disassembled by rotation. After the bolts are installed in the bolt seat, the rainproof docking mechanism is rotated and inserted into the T-shaped limiting slide groove and slid downward. The side wall of the support is close to the outer wall of the truck scale body, so that the sealing groove covers the bolt seat. Then, air is injected into the rubber sealing airbag through the air nozzle, so that the gaps between the components can be further sealed, preventing rainwater from seeping into the gaps between the components and causing the bolt seat and bolts to be corroded and rusted, which facilitates the normal disassembly and maintenance of the truck scale.

[0015] 2. The rainproof docking mechanism on the outer side of two adjacent truck scale bodies of this utility model is connected by an external snap-fit ​​assembly. The snap-fit ​​assembly is connected by four sets of high-pressure compression springs. In this way, whether in hot or cold winter, the compression springs can ensure that the positions of the two truck scale bodies correspond under the thermal expansion and contraction of metal. The rainproof docking mechanism is mutually engaged by toothed plates, and the toothed plates can slide through the T-shaped limiting slide block. In this way, when different truck scale bodies are pressed down and deformed, the two toothed plates will move synchronously due to the force between them, reducing the probability of tooth breakage on the toothed plates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rainproof docking mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing groove of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the T-shaped limiting slide block of this utility model.

[0022] In the diagram: 1. Truck scale body; 2. Rainproof docking mechanism; 20. Snap-fit ​​assembly; 101. Bolt seat; 102. T-shaped limiting slide groove one; 201. T-shaped limiting slide one; 202. Support; 203. Sealing groove; 204. Rubber sealing airbag; 205. Air nozzle; 206. Limiting ring; 207. Groove; 208. Sliding block; 209. Mounting groove; 210. Compression spring; 211. Guide rod; 212. Through hole; 213. Limiting plate; 214. T-shaped limiting slide groove two; 215. T-shaped limiting slide two; 216. Toothed plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-5 This application provides further details:

[0025] This application discloses a docking structure for a truck scale. (Refer to...) Figure 1The system includes a truck scale body 1, on which a bolt seat 101 is welded. The bolt seat 101 is used to install the truck scale body 1 into a predetermined position. A rainproof docking mechanism 2 is provided on the side of the truck scale body 1. The rainproof docking mechanism 2 is only provided between two adjacent truck scale bodies 1. The metal material in the rainproof docking mechanism 2 is all stainless steel and the surface is coated with waterproof paint.

[0026] Reference Figure 1 and Figure 2 The rainproof docking mechanism 2 is located above the bolt seat 101. The rainproof docking mechanism 2 includes a T-shaped limiting slide 201 that is slidably connected to the side of the truck scale body 1. A support 202 is integrally formed on the outer side of the T-shaped limiting slide 201. A T-shaped limiting groove 102 is opened on the outer side of the truck scale body 1. The support 202 is slidably connected to the side of the truck scale body 1 through the cooperation of the T-shaped limiting slide 201 and the T-shaped limiting groove 102. The edges of the T-shaped limiting slide 201 are all rounded. The rounded corners allow the T-shaped limiting slide 201 to rotate smoothly in the T-shaped limiting groove 102. There is a small flat surface in the middle of the edge of the T-shaped limiting slide 201, which allows the rainproof docking mechanism 2 to remain in a horizontal state after installation.

[0027] Reference Figure 1 and Figure 3 The support 202 has a sealing groove 203 on its inner side. A rubber sealing airbag 204 is installed on the inner wall of the sealing groove 203. An air nozzle 205 is connected to the upper part of the rubber sealing airbag 204. The upper part of the air nozzle 205 passes through the sealing groove 203 and is exposed on the upper part of the support 202. The sealing groove 203 has a double-sided open structure. The rubber sealing airbag 204 is fixed to the three inner walls of the sealing groove 203 by waterproof adhesive. The air nozzle 205 is a common American-style nozzle. After the sliding support 202 makes the sealing groove 203 cover the bolt seat 101 and the bolts on it, The air pump is connected to the air nozzle 205 to inflate the rubber sealing airbag 204 to seal the gap and prevent rainwater from seeping in. Since the mass of the support 202 is much greater than the pressure generated by the airbag, the support 202 will not be lifted. The outer wall of the air nozzle 205 is threaded with a limit ring 206. After inflation, the limit ring 206 is screwed onto the outer wall of the air nozzle 205 and pressed against the upper surface of the support 202. This reduces the chance of the rubber sealing airbag 204 rupturing and leaking air due to the shaking of the vehicle above.

[0028] Reference Figure 1 and Figure 5A snap-fit ​​assembly 20 is provided on the outer side of the support 202. A square groove 207 is provided on the outer side of the support 202. The snap-fit ​​assembly 20 includes a slider 208, which is slidably connected in the groove 207. A T-shaped limiting groove 214 is provided on the outer wall of the slider 208. A T-shaped limiting slide block 215 is slidably connected on the outer side of the T-shaped limiting groove 214. The T-shaped limiting groove 214 and the T-shaped limiting slide block 215 can effectively play a role in preventing detachment.

[0029] Reference Figure 1 and Figure 4 The groove 207 has an internal mounting groove 209, and a compression spring 210 is welded and fixed inside the mounting groove 209. A guide rod 211 is welded and fixed to the inner side of the slider 208, and the side of the guide rod 211 is welded and fixed to the compression spring 210. Four sets of mounting grooves 209 are symmetrically arranged, and a through hole 212 is provided on the outside of the mounting groove 209. A limiting piece 213 is integrally formed at the end of the guide rod 211. The diameter of the limiting piece 213 is between the inner diameter of the mounting groove 209 and the diameter of the through hole 212. The T-shaped limiting slide block 215... The outer wall is welded and fixed with a toothed plate 216. The compression spring 210 is a high-pressure spring. The compression spring 210 can ensure that the positions of the two truck scale bodies 1 can correspond under the thermal expansion and contraction of the metal. The teeth of the toothed plate 216 are arranged longitudinally. After the two opposing toothed plates 216 are engaged, they can still slide up and down in the T-shaped limiting slide groove 214. In this way, when different truck scale bodies 1 are pressed down and deformed, the two toothed plates 216 will move synchronously due to the force between them, reducing the probability of the teeth on the toothed plate 216 breaking.

[0030] Working principle: Before installation, the first truck scale body 1 is installed in the predetermined installation position using bolt seat 101 and bolts. Then, the rainproof docking mechanism 2 is rotated to a vertical position, and the T-shaped limiting slide 201 is vertically inserted into the T-shaped limiting slide groove 102. Then, the support 202 is rotated 90° to keep the T-shaped limiting slide 201 and the T-shaped limiting slide groove 102 parallel, thus completing one rainproof docking mechanism 2. After installing the first truck scale body 1, the second truck scale body 1 is installed. After installing the second truck scale body 1 and its waterproof docking mechanism 2, the teeth are engaged by the two toothed plates 216 on the adjacent truck scale body 1. Then, the rainproof docking mechanism 2 is pressed down so that the sealing groove 203 covers the bolt seat 101. Then, air is injected into the rubber sealing airbag 204 through the air nozzle 205 to further seal the gaps between the components.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A docking structure for a truck scale, characterized in that: Includes a truck scale body (1), on which a bolt seat (101) is welded, and a rainproof docking mechanism (2) is provided on the side of the truck scale body (1); The rainproof docking mechanism (2) is located above the bolt seat (101), and the rainproof docking mechanism (2) includes a T-shaped limiting slide (201) slidably connected to the side of the truck scale body (1). The outer side of the T-shaped limiting slide (201) is integrally formed with a support (202). A sealing groove (203) is provided on the inner side of the support (202). A rubber sealing airbag (204) is installed on the inner wall of the sealing groove (203). An air nozzle (205) is connected to the upper part of the rubber sealing airbag (204). The upper part of the air nozzle (205) passes through the sealing groove (203) and is exposed on the upper part of the support (202). A snap-fit ​​assembly (20) is provided on the outer side of the support (202).

2. The docking structure of a truck scale according to claim 1, characterized in that: The outer side of the weighbridge body (1) is provided with a T-shaped limiting slide groove (102). The support (202) is slidably connected to the side of the weighbridge body (1) through the cooperation of the T-shaped limiting slide (201) and the T-shaped limiting slide groove (102). The edges of the T-shaped limiting slide (201) are all provided with rounded corners.

3. The docking structure of a truck scale according to claim 1, characterized in that: The sealing groove (203) is a double-sided open structure, and the rubber sealing airbag (204) is fixed to the three inner walls of the sealing groove (203) by waterproof adhesive. The outer wall of the air nozzle (205) is threadedly connected to a limit ring (206).

4. The docking structure of a truck scale according to claim 1, characterized in that: The support (202) has a square groove (207) on its outer side, and the snap-fit ​​assembly (20) includes a slider (208) which is slidably connected in the groove (207).

5. The docking structure of a truck scale according to claim 4, characterized in that: The groove (207) has an installation groove (209) inside, and a compression spring (210) is welded and fixed inside the installation groove (209). A guide rod (211) is welded and fixed inside the slider (208), and the side of the guide rod (211) is welded and fixed to the compression spring (210).

6. The docking structure of a truck scale according to claim 5, characterized in that: The mounting groove (209) is symmetrically arranged in four sets, and the mounting groove (209) is provided with a through hole (212) on the outside. The end of the guide rod (211) is integrally formed with a limiting piece (213), and the diameter of the limiting piece (213) is between the inner diameter of the mounting groove (209) and the diameter of the through hole (212).

7. The docking structure of a truck scale according to claim 4, characterized in that: The outer wall of the slider (208) is provided with a T-shaped limiting groove (214), and a T-shaped limiting slide block (215) is slidably connected to the outer side of the T-shaped limiting groove (214), and a toothed plate (216) is welded and fixed to the outer side of the T-shaped limiting slide block (215).