Wagon balance protection device

Abstract

The utility model discloses a wagon balance protection device which comprises a slope body mechanism and a weighing mechanism. The slope body mechanism comprises a slope body, an extension plate connected to the inner side of the top end of the slope body, a motor installed on the inner side of the slope body, a gear connected to the output end of the motor, a limiting buffer rod arranged at the bottom of the extension plate and a pressure sensor fixedly installed at the bottom of the inner side of the slope body. The weighing mechanism comprises a side plate in sliding connection with the limiting buffer rod, a weighing platform installed on the inner side of the side plate, and a telescopic rod fixed to the bottom of the weighing platform. According to the utility model, the end part of the slope body is extended to cover the weighing platform, so that the weight of a vehicle is partially supported by the extension plate before the vehicle runs to the weighing platform, the weight of the vehicle slowly enters the weighing platform along with the driving-in of the vehicle, and the situation that the weight is directly and completely borne by the weighing platform when the vehicle runs in is avoided; the situation that the pressure sensor suddenly bears overlarge pressure and is damaged is avoided, and the use safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighbridge protection, in particular to a weighbridge protection device. Background Art

[0002] The weighbridge scale is also known as a weighbridge and is the main weighing equipment used by factories, mines, merchants, etc. for measuring bulk goods. The common electronic weighbridges before were generally mechanical electronic weighbridges with a pure mechanical structure using the lever principle, also known as mechanical weighbridges. With the increasing maturity of high-precision weighing sensor technology, mechanical weighbridges have gradually been replaced by weighbridge scales with high precision, good stability, and convenient operation. However, when the weighbridge is actually in use, when a vehicle passes through the weighbridge, due to the relatively large weight of the vehicle, a large gravitational impact will be generated instantaneously, so it is extremely easy to damage the weighbridge. For this reason, a weighbridge protection device is proposed. Content of the Utility Model

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] For this reason, the technical solution adopted by the utility model is as follows:

[0005] A weighbridge protection device includes a slope mechanism and a weighing mechanism. The slope mechanism includes a slope, an extension plate connected to the inner side of the top end of the slope, a motor installed inside the slope, a gear connected to the output end of the motor, a limit buffer rod arranged at the bottom of the extension plate, and a pressure sensor fixedly installed at the bottom inner side of the slope. The weighing mechanism includes a side plate slidably connected to the limit buffer rod, a weighing platform installed inside the side plate, a telescopic rod fixed to the bottom of the weighing platform, a total load-bearing plate connected to the bottom end of the telescopic rod, and a pressure ball arranged at the bottom of the total load-bearing plate. The pressure sensor is located at the bottom of the pressure ball to support the weighing mechanism.

[0006] Preferably, a connecting baffle is installed on the side of the bottom of the slope, and both ends of the connecting baffle are respectively connected to the inner sides of the two connecting baffles.

[0007] Preferably, the gear meshes with the side plate.

[0008] Preferably, a weighing surface is installed on the top of the weighing platform, and the thickness of the weighing surface is equal to the thickness of the extension plate.

[0009] Preferably, a spring is arranged inside the telescopic rod.

[0010] Preferably, clamping blocks are staggeredly installed inside the total load-bearing plate, and rollers are arranged at the top ends of the clamping blocks.

[0011] By adopting the above technical solution, the beneficial effects obtained by the utility model are as follows:

[0012] In the present utility model, by extending the end of the slope body to cover the weighing platform, when the vehicle is approaching the weighing platform, part of its weight is supported by the extension plate. As the vehicle drives onto the weighing platform, its weight gradually enters the weighing platform, preventing the situation where the weighing platform suddenly bears the full weight of the vehicle when it drives onto the platform, which could cause excessive pressure on the pressure sensor and lead to damage, thus improving the safety of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional schematic view of an embodiment of the present utility model;

[0014] Figure 2 is a front view schematic view of an embodiment of the present utility model.

[0015] REFERENCE SIGNS:

[0016] 110, slope body; 111, connecting baffle; 120, extension plate; 130, motor; 140, gear; 150, limit buffer rod; 160, pressure sensor;

[0017] 210, weighing platform; 211, weighing surface; 220, side plate; 230, telescopic rod; 240, total load-bearing plate; 241, clamping block; 242, roller; 250, pressure ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0019] The following describes a weighbridge protection device provided by some embodiments of the present utility model with reference to the accompanying drawings.

[0020] Embodiment 1:

[0021] Combined with Figure 1-2As shown in the figure, a weighing scale protection device provided by the present utility model includes: a slope mechanism and a weighing mechanism. The slope mechanism includes a slope 110. A connecting baffle 111 is installed on the side of the bottom of the slope 110. The two ends of the connecting baffle 111 are respectively connected to the inner sides of the two connecting baffle 111, an extension plate 120 connected to the inner side of the top of the slope 110, a motor 130 installed on the inner side of the slope 110, a gear 140 connected to the output end of the motor 130, a limit buffer rod 150 arranged at the bottom of the extension plate 120, and a pressure sensor 160 fixedly installed at the bottom of the inner side of the slope 110. The weighing mechanism includes a side plate 220 slidably connected to the limit buffer rod 150, a weighing platform 210 installed on the inner side of the side plate 220, a telescopic rod 230 fixed to the bottom of the weighing platform 210, a total load-bearing plate 240 connected to the bottom end of the telescopic rod 230, a pressure ball 250 arranged at the bottom of the total load-bearing plate 240. Card position blocks 241 are staggeredly installed on the inner side of the total load-bearing plate 240. A roller 242 is arranged at the top of the card position block 241. A weighing surface 211 is installed on the top of the weighing platform 210. The thickness of the weighing surface 211 is equal to the thickness of the extension plate 120. The pressure sensor 160 is located at the bottom of the pressure ball 250 to support the weighing mechanism. The gear 140 meshes with the side plate 220. A spring is arranged inside the telescopic rod 230.

[0022] Specifically, by utilizing the relationship between the telescopic rod 230 and the card position block 241, the position between the weighing platform 210 and the total load-bearing plate 240 will not have a large misalignment, enabling the side plate 220 to stably mesh with the gear 140. Therefore, during use, once the weighing platform 210 sinks, it can be corrected by the rotation of the gear 140, ensuring the safety of the vehicle when driving out and improving the practicability of the device.

[0023] The working principle and usage process of the present utility model are as follows: First, install the device on the ground and build protective walls flush with the extension plate 120 on both sides of the device, then connect the power supply to start using. When weighing is required, the vehicle drives onto the weighing platform 210 from one side of the slope 110. As the vehicle moves, the front end of the vehicle reaches the weighing platform 210 first. At this time, only a small part of the vehicle's weight is received by the weighing platform 210. As the vehicle continues to drive in until it separates from the extension plate 120, the overall weight is received by the weighing platform 210 to achieve weighing. When the weighing platform 210 sinks excessively due to overweight, start the motor 130 to drive the gear 140 to rotate, thereby lifting the weighing platform 210 to facilitate the vehicle to drive out. Finally, regularly inspect the device.

[0024] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A weighbridge protection device, characterized in that: include: Slope mechanism and weighing mechanism; The slope mechanism comprises a slope (110), an extension plate (120) connected to the inner side of the top end of the slope (110), a motor (130) installed on the inner side of the slope (110), a gear (140) connected to the output end of the motor (130), a limit buffer rod (150) arranged at the bottom of the extension plate (120), and a pressure sensor (160) fixedly installed at the inner bottom of the slope (110); The weighing mechanism comprises a side plate (220) slidably connected to the limit buffer rod (150), a weighing platform (210) installed inside the side plate (220), a telescopic rod (230) fixed at the bottom of the weighing platform (210), a total bearing plate (240) connected to the bottom end of the telescopic rod (230), and a pressure ball (250) arranged at the bottom of the total bearing plate (240); The pressure sensor (160) is located at the bottom of the pressure ball (250) and is used to support the weighing mechanism.

2. A floor scale protection device according to claim 1, characterized in that: A connecting baffle (111) is installed on the side surface of the bottom of the slope (110), and two ends of the connecting baffle (111) are respectively connected to the inner sides of the two connecting baffles (111).

3. A floor scale protection device according to claim 1, characterized in that: The gear (140) is meshed with the side plate (220).

4. A floor scale protection device according to claim 1, characterized in that: A weighing surface (211) is installed on the top of the weighing platform (210), and the thickness of the weighing surface (211) is equal to the thickness of the extension plate (120).

5. A floor scale protection device according to claim 1, characterized in that: A spring is arranged inside the telescopic rod (230).

6. A floor scale protection device according to claim 1, characterized in that: The inner side of the total load-bearing plate (240) is staggeredly provided with blocking blocks (241), and the top end of the blocking blocks (241) is provided with rollers (242).

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