Light truck scale

Abstract

The present invention discloses a light vehicle scale, which includes a scale panel, support feet, and load cells. The load cells are bridged over the scale panel and the support feet. The load cells include a first connection part and a second connection part. The first connection part is fixed to the support feet, and the second connection part is fixed to the scale panel. The volume of the first connection part is smaller than that of the second connection part. The scale panel is suspended between at least two support feet. During use, the support feet are fixed on the ground to support the scale panel so that it does not directly contact the ground. The present invention can greatly reduce the thickness of the scale panel, lower the scale surface height, facilitate the vehicle to get on the scale during weighing, and also greatly reduce the overall volume and manufacturing cost of the vehicle scale.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle weighing technology, and more specifically, to a light vehicle scale.

Background Art

[0002] The application scenarios of vehicle weighing include overloading detection by road departments, weighing and charging at highway intersections, factories and enterprises for monitoring solid waste disposal, and monitoring the inbound and outbound volume of facilities such as recycling centers and construction sites. Traditional vehicle weighing mainly uses large platform scales. As a large-weight electronic weighing instrument, the platform scale is mainly used for weighing large-load trucks, and has very high requirements for the ground of the weighing site. It is necessary to perform treatments such as sunken platforms, leveling, and pouring cement on the ground. Moreover, the platform scale is large in size and requires a crane for installation and disassembly, making it inconvenient to operate. Therefore, it is often installed once and fixed in a certain position without moving for a long time. To solve the above problems, distributed weighing scales are mostly used in the industry. The sensors of the existing weighing scales are arranged at the bottom of the scale body close to the ground. In order to make the sensors measure accurately and reduce damage to the sensors during the weighing process, the sensor installation structure includes embedded installation or installation in the cross beam at the bottom. This installation method will increase the thickness of the scale body and raise the distance between the weighing surface and the ground, making it inconvenient for vehicles to get on the scale during weighing.

Summary of the Invention

[0003] The purpose of the present invention is to provide a light vehicle scale for the deficiencies in the prior art. By bridging the weighing sensor between the support feet and the scale panel, on the premise of not affecting the weighing accuracy of the vehicle scale, the weighing sensor is protrudingly arranged on the scale surface of the scale panel away from the ground, so as to greatly reduce the thickness of the scale panel, lower the scale surface height, facilitate vehicle weighing when getting on the scale, and also greatly reduce the overall volume and manufacturing cost of the vehicle scale.

[0004] To achieve the above purpose, the technical solution of the present invention provides a light vehicle scale, including a scale panel, a first support foot, a second support foot, and a weighing sensor. The weighing sensor is bridged over the scale panel, the first support foot, and the second support foot. The weighing sensor includes a first connection part and a second connection part. The first connection part is fixed on the first support foot and the second support foot, and the second connection part is fixed on the scale panel. The volume of the first connection part is smaller than the volume of the second connection part. The scale panel is suspended between at least one first support foot and at least one second support foot. During use, the first support foot and the second support foot are fixed on the ground to support the scale panel so that it does not directly contact the ground.

[0005] Preferably, the first supporting leg includes a guiding surface and a supporting surface. The guiding surface is a ramp surface, and the first connecting portion is fixed on the guiding surface. The supporting surface is a flat surface. When using the light truck scale, the supporting surface is fixed on the ground to support the scale panel.

[0006] Preferably, a gasket is provided between the guiding surface and the first connecting portion. The contact surface of the gasket with the first connecting portion is parallel to the weighing surface of the scale panel. The weighing sensor protrudes above the weighing surface and does not directly contact the ground.

[0007] Preferably, a relief groove is provided at the connection of the scale panel with the second connecting portion, and the second connecting portion is suspended above the relief groove.

[0008] Preferably, the second supporting leg includes a base and a supporting column, and the supporting column is fixed between the first connecting portion and the base.

[0009] Preferably, a relief opening is provided at the connection of the scale panel with the weighing sensor, and the first connecting portion is fixed at the relief opening through the second supporting leg.

[0010] Preferably, a relief groove is provided at a position on the scale surface near the relief opening, and the second connecting portion is suspended above the relief groove.

[0011] Preferably, the scale panel is a square thin plate, and the scale panel is in contact connection, sliding connection or has a gap with the first supporting leg and the second supporting leg.

[0012] Preferably, the light truck scale includes at least two weighing sensors, and the weighing sensors are symmetrically fixed on the weighing surface of the scale panel.

[0013] The advantages of the present invention are as follows:

[0014] In the light truck scale of the present invention, the weighing sensor is bridged between the supporting leg and the scale panel through the first connecting portion and the second connecting portion, so that the weighing sensor can accurately sense the weighing value on the scale panel without being completely attached to the scale panel. In this installation method, the weighing sensor can be installed on the surface of the scale panel instead of at the bottom of the scale panel close to the ground. Furthermore, the distance between the scale panel and the ground can be greatly reduced, the height of the scale surface can be lowered, and it is convenient for the vehicle to get on the scale during weighing. Since the scale panel is thin enough and the height difference from the ground is small enough, it can ensure that the vehicle gets on the scale smoothly.

[0015] For the light truck scale of the present invention, first feet and second feet are arranged on both sides of the scale panel. These two feet suspend the scale panel above the ground. When weighing, only by adjusting the feet can the scale panel be kept stable, and it is not necessary to level the ground under the bottom surface of the scale panel. Even on an uneven ground, this truck scale can be used for weighing, which is convenient for weighing.

[0016] For the light truck scale of the present invention, the structure of the scale panel is thin and light. The overall volume of the truck scale is reduced and the weight is lightened, which is convenient for handling and reduces the manufacturing cost.

Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the technical solutions related to the drawings in the embodiments will be briefly described below. Obviously, the drawings described in this specification are only some possible embodiments of the present invention. For those of ordinary skill in the art, without any creative labor, other drawings identical or similar to the technical solutions of the present invention can be obtained based on the following drawings.

[0018] Attached Figure 1 is a schematic structural diagram of the light truck scale of the present invention in the first embodiment;

[0019] Attached Figure 2 is a partial structural diagram of the light truck scale of the present invention in the first embodiment

[0020] Attached Figure 3 is a schematic structural diagram of the light truck scale of the present invention in the second embodiment;

[0021] Attached Figure 4 is a partial structural diagram of the light truck scale of the present invention in the second embodiment.

[0022] The reference numerals and components involved in the drawings are as follows:

[0023] 1. Scale panel, 11. Scale surface, 12. Scale bottom, 13. Relief groove, 14. Relief opening, 21. First foot, 22. Second foot, 211. Guide surface, 212. Support surface, 221. Base, 222. Support column, 31; 32. Weighing sensor, 311; 321. First connection part, 312; 322. Second connection part, 4. Spacer.

Detailed Embodiments

[0024] The technical solutions described in the present invention will be clearly and completely described below in conjunction with the drawings and specific embodiments. Obviously, the embodiments described in this specification are only some feasible technical solutions of the present invention. Other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative labor should be regarded as belonging to the scope of protection of the present invention.

[0025] It should be noted that the descriptions such as "first" and "second" used in the embodiments of the present invention are only for descriptive purposes and should not be construed as indicating or implicitly indicating the number of the defined technical features. Therefore, the features defined with "first" and "second" in the embodiments of this specification may indicate that at least one of the defined technical features is included.

[0026] The technical solutions between the various embodiments of the present invention recorded in this specification can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist.

[0027] The light vehicle scale of the present invention is mainly used in the field of vehicle scales. Specifically, by combining multiple groups of the light vehicle scales, the weighing of vehicles can be realized. In actual use, the light vehicle scale of the present invention is stably placed in front of the wheels. When the vehicle stops steadily on the scale panel, the weighing sensor senses the gravity of the vehicle and accurately measures the total weight of the vehicle. The present invention can not only meet the weighing of single-tire or double-tire wheels, but also meet the weighing of ultra-wide tire vehicles. The light vehicle scale of the present invention includes at least the following three embodiments.

[0028] Embodiment 1

[0029] Referring to Figure 1 the structural schematic diagram of the light vehicle scale of the present invention shown in this embodiment, the light vehicle scale of the present invention includes a square scale panel 1, a first support leg 21 provided on one long side of the scale panel 1, a second support leg 22 provided on the other long side of the scale panel 1, a weighing sensor 31 bridged on the scale panel 1 and the first support leg 21, and a weighing sensor 32 bridged on the scale panel 1 and the second support leg 22. The first support leg 21 is a long strip-shaped thin plate, arranged parallel to the edge of the scale panel 1, and multiple weighing sensors can be fixed on the first support leg 21 at the same time; the second support leg 22 is a support structure independently fixed at the bottom of the weighing sensor 32, and the second support leg 22 is fixed to the weighing sensor 32 one by one and can be located at any position on the scale panel 1. Specifically, the scale panel 1 of the light vehicle scale of the present invention is a rigid thin plate. When in use, the side close to the ground is the scale bottom 12 of the scale panel 1, and the side bearing the wheels and in direct contact with the wheels is the scale surface 11.

[0030] In Embodiment 1, the scale panel 1 is a square thin plate, specifically a rectangle, and the first support leg 21 and the second support leg 22 are respectively located on two symmetric long sides of the scale panel 1.

[0031] One of the long sides of the scale panel 1 is provided with a first support leg 21 in parallel, on which at least two weighing sensors 31 are fixed. Preferably, as shown in Figure 1 Three weighing sensors 31 are fixed as shown. The weighing sensor 31 is bridged between the scale panel 1 and the first support leg 21. Specifically, the first connection part 311 of the weighing sensor 31 is fixed on the first support leg 21, and the second connection part 312 of the weighing sensor 31 is fixed on the scale panel 1. There may be a contact connection, a sliding contact or a gap between the scale panel 1 and the first support leg 21. The first support leg 21 includes a guiding surface 211 and a supporting surface 212. The guiding surface 211 is a ramp surface. The first connection part 311 is fixed on the guiding surface 211. The supporting surface 212 is a flat surface. When using this light truck scale, the supporting surface 212 is fixed on the ground to support the scale panel 1, and the weighing sensor 31 is convexly fixed above the scale surface 11. In actual use, the first support leg 21 may be a triangular prism. Its guiding surface 211 is a ramp surface on the side away from the scale panel 1. Its supporting surface 212 contacts the ground. The side close to the scale panel 1 may be a surface perpendicular to the supporting surface 212 or may form an angle with the supporting surface 212. At this time, the gap between the first support leg 21 and the scale panel 1 may be small enough, or the two may be directly integrally connected. The ramp surface presented by the guiding surface 211 can guide the wheels to smoothly drive onto the scale surface 11. In another embodiment, the first support leg 21 may be a trapezoid. Its guiding surface 211 is a ramp surface. The top of the ramp surface is flush with the scale surface 11 of the scale panel 1. Its supporting surface 212 contacts the ground. The side close to the scale panel 1 may be a surface perpendicular to the supporting surface 212. At this time, there may be a large gap or no gap between the first support leg 21 and the scale panel 1. When the vehicle drives onto the scale surface 11, it first passes through the guiding surface 211. With the help of the guiding surface 211, the vehicle smoothly drives onto the truck scale for weighing. In another embodiment, the guiding surface 211 of the first support leg 21 may be an arc-shaped ramp surface. Its supporting surface 212 contacts the ground. The side close to the scale panel 1 may be a surface perpendicular to the supporting surface 212. At this time, there may be a gap between the first support leg 21 and the scale panel 1, but it should be ensured that the gap is small enough or there is no gap or a sliding contact. The wheels first drive onto the guiding surface 211 and then transition onto the scale surface 11, which can help the vehicle smoothly drive onto the truck scale for weighing.

[0032] With reference to the attached Figure 1 and 2 , in this embodiment, on the other long side of the scale panel 1 symmetric to the first support leg 21, a second support leg 22 is provided. In order to make the overall structure of the truck scale symmetric, the second support leg 22 should be symmetrically arranged with the weighing sensors 31 on the first support leg 21, that is, at least two weighing sensors 32 are arranged on the long side of the scale panel 1. Preferably, as shown in Figure 1Three load cells 32 are fixedly arranged as shown in the figure, and each bottom of the load cells 32 is fixed with one of the second feet 22, so that the load cells 32 are bridged over the scale panel 1 and the second feet 22. The second feet 22 include a base 221 and a support column 222. The support column 222 is fixed between the first connecting portion 321 and the base 221. The specific fixing method can be that the three are welded together in sequence, or the three are connected together by a pin shaft, or the three are connected together by screws. The first connecting portion 321 of the load cell 32 is fixed on the support column 222, and the second connecting portion 322 is fixed on the scale surface 11. In practical applications, there may be a contact connection, a sliding contact or a gap between the second feet 22 and the scale panel 1. Preferably, a relief opening 14 is provided at the connection between the scale panel 1 and the load cell 32, and the first connecting portion 321 is fixed at the relief opening 14 through the second feet 22.

[0033] Through the above design of the first feet 21 and the second feet 22, when the light truck scale of the present invention is in use, the scale panel 1 is supported and does not directly contact the ground. With such a design, when the wheel drives onto the scale panel 1 and generates a downward pressure on the scale panel 1, under the action of this pressure, the scale panel 1 drives the load cell to generate a pressure on the feet, so that the load cell can sense the entire gravity from the wheel and accurately measure the weighing value corresponding to the wheel.

[0034] To ensure the balance of the weighing platform 1 during weighing, a gasket 4 is provided between the guiding surface 211 and the first connecting portion 311. The contact surface of the gasket 4 with the first connecting portion 311 is parallel to the weighing surface 11 of the weighing platform 1. The weighing sensor 31 protrudes above the weighing surface 11, so that the weighing sensor 31 does not directly contact the ground, reducing the distance between the bottom 12 of the scale and the ground. In practice, since it is necessary to ensure the balance of the first support leg 21 and the second support leg 22, the supporting surface 212 and the base 221 must both be in full contact with the ground. Only in this way can the upward supporting forces of the first support leg 21 and the second support leg 22 and the downward pressure of the weighing platform 1 act on the weighing sensor 31 and the weighing sensor 32 together, so as to ensure that the weighing sensor can accurately weigh. And when the weighing sensor 31 is connected to the first support leg 21 and the weighing platform 1 at the same time, it is necessary to ensure that the connecting surface between the first connecting portion 311 and the first support leg 21 and the connecting surface between the second connecting portion 312 and the weighing platform 1 are flush, and at the same time the weighing platform 1 does not contact the ground. Therefore, the thickness of the first support leg 21 relative to the ground is thicker than that of the weighing platform 1. However, simply increasing the thickness of the first support leg 21 will increase the material cost of product manufacturing. Therefore, to meet the above requirements, without increasing the material used in the overall structure of the first support leg 21, a gasket 4 is provided between the guiding surface 211 and the first connecting portion 311, and the height of the guiding surface 211 is raised by using this gasket, so that the contact surface of the gasket 4 with the first connecting portion 311 is parallel to the weighing surface 11 of the weighing platform 1. On the other hand, setting the gasket 4 at the connection can also play an effect of strengthening the connection. The gasket 4 can be made of a metal sheet or a sheet structure made of a soft material.

[0035] It should be noted that in this embodiment, the volume of the first connecting portion of the weighing sensor is smaller than the volume of the second connecting portion. Such a design can enable the support legs on both sides of the weighing platform not to require a widened design on the premise of being able to bear the vehicle gravity, and the overall volume is small enough, so that the entire vehicle scale body is lighter.

[0036] Embodiment 2

[0037] Refer to the attached Figure 3 and the attached Figure 4In this embodiment, the scale panel 1 is also a square thin plate, specifically a rectangle, the first leg 21 is symmetrically arranged on the two long sides of the scale panel 1, and the weighing sensor 31 is connected between the first leg 21 and the scale panel 1. Specifically, the weighing sensor 31 includes: a first connecting portion 311 and a second connecting portion 312, and the second connecting portion 312 is fixed on the scale surface 11. The first leg 21 includes a guide surface 211 and a support surface 212, the guide surface 211 is a slope surface, the first connecting portion 311 is fixed on the guide surface 211 with a gasket 4, and the support surface 212 is a plane. When the light automobile scale is used, the support surface 212 is fixed on the ground to support the scale panel 1, and the weighing sensor 31 protrudes and is fixed on the scale surface 11. A clearance groove 13 is provided at the connection between the scale surface 11 and the second connecting part 312, and the second connecting part 312 is suspended on the clearance groove 13. Such a design can reserve a certain gap between the weighing sensor 31 and the scale panel 1, so as to avoid the weighing sensor 31 being squeezed by the uneven surface of the scale panel 1 when the weighing sensor 31 is installed on the scale panel 1, thereby avoiding the generation of assembly stress, thereby affecting the accuracy of the sensor weighing data.

[0038] In this embodiment, first legs 21 are respectively provided on the two long sides of the scale panel 1, and the guide surface 211 of at least one of the first legs 21 is a slope surface, which can help vehicles get on and off the scale.

[0039] Embodiment 3

[0040] In this embodiment, the scale panel 1 is also a square thin plate, specifically a rectangle, and three symmetrical weighing sensors 32 are symmetrically fixed on the two long sides of the scale panel 1. The weighing sensors 32 include: a first connecting portion 321 and a second connecting portion 322. The bottom of the first connecting portion 321 is fixedly connected to the second leg 22, and the second connecting portion 322 is fixed on the scale surface 11. Figure 2 The second support leg 22 includes a base 221 and a support column 222, and the support column 222 is fixed between the first connection part 321 and the base 221. At least one long side edge of the scale panel 1 is a sloped surface, which can guide the wheel to enter the scale surface 11. A clearance opening 14 is provided on at least one long side of the scale panel 1, specifically, a clearance opening 14 is provided at the connection between the scale panel 1 and the first connection part 321, and the first connection part 321 is fixed to the clearance opening 14 through the second support leg 22. A clearance groove 13 is provided on the scale surface 11 near the clearance opening 14, and the second connection part 322 is suspended on the clearance groove 13.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the method of the present invention, several improvements and supplements can be made, and these improvements and supplements should also be regarded as the protection scope of the present invention.

Claims

1. A light vehicle scale, characterized in that, It includes a weighing panel (1), a first supporting leg (21), a second supporting leg (22), and weighing sensors (31; 32). At least two of the weighing sensors (31) are bridged between the weighing panel (1) and the first supporting leg (21), and at least two of the weighing sensors (32) are bridged between the weighing panel (1) and the second supporting leg (22). The weighing sensors (31; 32) include: a first connecting portion (311; 321) and a second connecting portion (312; 322). The first connecting portion (311) of the weighing sensor (31) bridged between the weighing panel (1) and the first supporting leg (21) is fixed to the first supporting leg (21), and the first connecting portion (321) of the weighing sensor (32) bridged between the weighing panel (1) and the second supporting leg (22) is fixed to the second supporting leg (22). The second connecting portion (312; 322) is fixed to the weighing panel (1). The volume of the first connecting portion (311; 321) is smaller than the volume of the second connecting portion (312; 322). The weighing panel (1) is suspended between one first supporting leg (21) and at least two second supporting legs (22). When in use, the first supporting leg (21) and the second supporting legs (22) are fixed to the ground to support the weighing panel (1) so that it does not directly contact the ground; A relief groove (13) is provided at the connection of the weighing surface (11) of the weighing panel (1) and the second connecting portion (312), and the second connecting portion (312) is suspended above the relief groove (13).

2. The light vehicle scale according to claim 1, wherein The first supporting leg (21) includes a guiding surface (211) and a supporting surface (212). The guiding surface (211) is a ramp surface, the first connecting portion (311) is fixed on the guiding surface (211), and the supporting surface (212) is a flat surface. When using this light truck scale, the supporting surface (212) is fixed to the ground to support the weighing panel (1).

3. The light truck scale according to claim 2, wherein A gasket (4) is provided between the guiding surface (211) and the first connecting portion (311). The contact surface of the gasket (4) and the first connecting portion (311) is parallel to the weighing surface (11) of the weighing panel (1). The weighing sensor (31) protrudes above the weighing surface (11) and does not directly contact the ground.

4. The light vehicle scale according to claim 1, characterized in that, The second supporting leg (22) includes a base (221) and a supporting column (222), and the supporting column (222) is fixed between the first connecting portion (321) and the base (221).

5. The light truck scale according to claim 4, characterized in that, A relief opening (14) is provided at the connection of the weighing panel (1) and the weighing sensor (32), and the first connecting portion (321) is fixed at the relief opening (14) through the second supporting leg (22).

6. The light vehicle scale according to claim 5, wherein A relief groove (13) is provided at a position on the weighing surface (11) near the relief opening (14), and the second connecting portion (322) is suspended above the relief groove (13).

7. The light truck scale according to any one of claims 1-6, characterized in that, The scale panel (1) is a square thin plate, and the scale panel (1) is in contact connection, sliding connection or has a gap with the first support leg (21) and the second support leg (22).

8. The light vehicle scale according to claim 1, characterized in that, The light vehicle scale includes at least two of the load cells (31; 32), and the load cells (31; 32) are symmetrically fixed on the weighing surface (11) of the scale panel (1).

Images