Weighing sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a weighing sensor, which can protect the sensor, avoid damage and ensure the weighing accuracy when a heavy object is impacted or exceeds a detection maximum value. Comprising a sensor, a bearing plate, a cylinder, a protection part and a buffer part, the sensor is installed in the middle of the bearing plate, the lower portion of the bearing plate is connected with the cylinder through the protection part, and the buffer part is installed between the bearing plate and the cylinder.

Description

Technical Field

[0001] This utility model relates to the technical field of sensors, and in particular to a weighing sensor. Background Technology

[0002] A load cell is essentially a device that converts a mass signal into a measurable electrical signal output. When using a load cell, the actual working environment must be considered first. This is crucial for the correct selection of a load cell, as it relates to the sensor's normal operation, safety, lifespan, and even the reliability and safety of the entire weighing instrument. For example, a load cell disclosed in prior art publication CN217980484U includes a main body, a first deformation groove, a second deformation groove, and, from left to right, a first mounting end, a first figure-eight groove, a detection end, a second figure-eight groove, and a second mounting end. The first deformation groove is located at the upper end of the first figure-eight groove, and the second deformation groove is located at the lower end of the second figure-eight groove. Both the first and second deformation grooves are used to mount resistance strain gauges with a strain effect. However, when a heavy object impacts or exceeds the detection maximum value, the load cell can be damaged, leading to inaccurate weighing. Pulling the load cell upwards can also cause damage. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a weighing sensor that can protect the sensor from damage when subjected to heavy impact or when the detection value is exceeded, thus ensuring the accuracy of weighing.

[0004] The present invention discloses a weighing sensor, comprising a sensor, a support plate, a cylinder, a protective component, and a buffer component. The sensor is installed in the middle of the support plate, and the support plate is connected to the cylinder below through the protective component. A buffer component is installed between the support plate and the cylinder. The protective component and the buffer component can protect the sensor from damage when a heavy object impacts or exceeds the detection maximum value, thereby ensuring the accuracy of weighing.

[0005] Preferably, the protection component includes a support cylinder and multiple cutting spikes. The support cylinder is installed at the bottom of the support plate and slides inside the cylinder. Multiple cutting spikes are evenly inserted on the inner wall of the cylinder, and the bottom of the support cylinder contacts the cutting spikes. The support plate is supported by the cutting spikes and the support cylinder. When a heavy object impacts or exceeds the detection maximum value, the support cylinder cuts off the cutting spikes downward and slides downward inside the cylinder to buffer the external force and prevent the load cell from being directly damaged by the heavy object.

[0006] Preferably, the buffer component includes multiple buffer cylinders, multiple buffer rods, and multiple buffer springs. The multiple buffer cylinders are axially and evenly installed at the bottom of the inner cavity of the cylinder. The multiple buffer rods are installed at the bottom of the support plate corresponding to the buffer cylinders. The buffer rods are slidably installed inside the buffer cylinders. The multiple buffer springs are respectively installed inside the buffer cylinders, and the top of the buffer springs is connected to the bottom of the buffer rods. When the support plate and the support cylinder move downward, they push the buffer rods to slide inside the buffer cylinders, while compressing the buffer springs to further buffer and absorb external forces.

[0007] Preferably, it also includes multiple guide blocks. Multiple guide grooves are evenly provided axially on the outer wall of the cylinder, and multiple guide blocks are installed on the outer wall of the cylinder. The guide blocks are slidably installed in the guide grooves. The guide blocks and guide grooves can prevent the sensor from shaking, which would lead to inaccurate measurement, and also prevent the sensor from being pulled up and damaged.

[0008] Preferably, the bottom of the support cylinder is set as an inclined surface; setting the bottom of the support cylinder as an inclined surface can facilitate the cutting off of the cutting nail and ensure safety.

[0009] Preferably, it also includes a base plate, which is installed at the bottom of the cylinder and has mounting holes; the base plate and mounting holes facilitate the installation of the equipment and make it convenient to use.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by using protective components and buffer components, the sensor can be protected when a heavy object impacts or exceeds the detection maximum value, thus avoiding damage and ensuring the accuracy of weighing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 3 This is a front view structural diagram of the present invention;

[0014] Figure 4 This is a front cross-sectional structural diagram of the present invention;

[0015] Figure 5 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0016] The following are labels in the attached diagram: 1. Sensor; 2. Support plate; 3. Base plate; 4. Cylinder; 5. Support cylinder; 6. Cut-off nail; 7. Guide block; 8. Buffer cylinder; 9. Buffer rod; 10. Buffer spring. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] like Figures 1 to 5 As shown, sensor 1 is installed in the middle of bearing plate 2, support cylinder 5 is installed at the bottom of bearing plate 2, support cylinder 5 is slidably located inside cylinder 4, multiple cutting nails 6 are evenly inserted on the inner wall of cylinder 4, the bottom of support cylinder 5 is set as an inclined surface, the bottom of support cylinder 5 contacts the cutting nails 6, multiple buffer cylinders 8 are axially evenly installed at the bottom of cylinder 4, multiple buffer rods 9 are installed at the bottom of bearing plate 2 corresponding to buffer cylinders 8, buffer rods 9 are slidably installed inside buffer cylinders 8, multiple buffer springs 10 are respectively installed inside buffer cylinders 8, the top of buffer springs 10 is connected to the bottom of buffer rods 9, multiple guide grooves are axially evenly opened on the outer wall of cylinder 4, multiple guide blocks 7 are installed on the outer wall of cylinder 4, guide blocks 7 are slidably installed in guide grooves, a base plate 3 is installed at the bottom of cylinder 4, and mounting holes are opened on the base plate 3;

[0019] The base plate 3 and mounting holes facilitate the installation and use of the equipment. The support plate 2 is supported by the cutting nail 6 and the support cylinder 5. When a heavy object impacts or exceeds the detection maximum value, the support cylinder 5 cuts down the cutting nail 6 and slides downward inside the cylinder 4 to buffer the external force and prevent the load cell from being directly damaged by the heavy object. When the support plate 2 and the support cylinder 5 move downward, they push the buffer rod 9 to slide inside the buffer cylinder 8, while compressing the buffer spring 10 to further buffer and absorb the external force. The guide block 7 and guide groove can prevent the sensor 1 from shaking, which would lead to inaccurate measurement, and also prevent the sensor 1 from being pulled up and damaged. The bottom of the support cylinder 5 is set with a slope to facilitate the cutting of the cutting nail 6 and ensure safety.

[0020] like Figures 1 to 5 As shown, this utility model discloses a weighing sensor. During operation, the base plate 3 and mounting holes facilitate the installation of the device. The support plate 2 is supported by the cutting nail 6 and the support cylinder 5. When a heavy object impacts or exceeds the detection maximum value, the support cylinder 5 cuts down the cutting nail 6 and slides downward inside the cylinder 4 to buffer the external force. The bottom of the support cylinder 5 is set as an inclined surface to facilitate the cutting of the cutting nail 6. When the support plate 2 and the support cylinder 5 move downward, they push the buffer rod 9 to slide inside the buffer cylinder 8, while compressing the buffer spring 10 to further buffer and absorb the external force. The guide block 7 and guide groove can prevent the sensor 1 from shaking, which would lead to inaccurate measurement, and also prevent the sensor 1 from being pulled up and damaged.

[0021] The sensor 1 of the weighing sensor of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A load cell, characterized by, The sensor (1) is installed in the middle of the bearing plate (2), the bearing plate (2) is connected with the cylinder (4) through the protection component below, and the bearing plate (2) and the cylinder (4) are provided with the buffer component.

2. A load cell as claimed in claim 1 wherein, The protection component comprises a supporting cylinder (5) and a plurality of cutting nails (6), the supporting cylinder (5) is installed at the bottom of the bearing plate (2), the supporting cylinder (5) is slidingly arranged in the cylinder (4), a plurality of cutting nails (6) are uniformly inserted and arranged on the inner wall of the cylinder (4), and the bottom of the supporting cylinder (5) is in contact with the cutting nail (6).

3. A load cell as claimed in claim 2 wherein, The buffer component comprises a plurality of buffer cylinders (8), a plurality of buffer rods (9) and a plurality of buffer springs (10), the plurality of buffer cylinders (8) are axially and uniformly arranged at the bottom end of the cylinder (4), the plurality of buffer rods (9) are correspondingly arranged at the bottom end of the bearing plate (2) and are slidingly arranged in the buffer cylinder (8), and the plurality of buffer springs (10) are arranged in the buffer cylinder (8) and are connected with the bottom of the buffer rod (9).

4. A load cell as claimed in claim 1 wherein, A plurality of guide blocks (7) are further arranged, a plurality of guide grooves are axially and uniformly arranged on the outer wall of the cylinder (4), and the plurality of guide blocks (7) are slidingly arranged in the guide grooves.

5. A load cell as claimed in claim 2 wherein, The bottom of the supporting cylinder (5) is provided as an inclined surface.

6. A load cell as claimed in claim 1 wherein, A bottom plate (3) is further arranged, the bottom plate (3) is arranged at the bottom of the cylinder (4), and a mounting hole is arranged on the bottom plate (3).

Images