Weighing apparatus with bidirectional limit protection

Abstract

The application provides a weighing device with bidirectional limiting protection, which comprises a base, a sensor, a bracket and a scale pan, the sensor is installed in the base, one end of the sensor is fixed with the base, the other end is fixed with the bracket, the bracket is above the sensor and the base, the scale pan is installed on the bracket, the bottom surface of the bracket is provided with at least a first pressure limiting part, the base is provided with at least a rebound limiting mechanism, and the rebound limiting mechanism is above the sensor. The weighing device with bidirectional limiting protection combines the pressure limiting mechanism and the rebound limiting mechanism, protects the sensor from the damage of impact and rebound at the same time, effectively protects the metering performance of the sensor, and realizes bidirectional limiting protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of weighing equipment, in particular to a weighing equipment with bidirectional limit protection. BACKGROUND

[0002] In the field of weighing, the weighing equipment generally refers to a weight measuring instrument for large objects in industry or trade. The weighing equipment is mainly composed of three parts, i.e., a load bearing system (such as a scale pan and a scale body), a force transmission conversion system (such as a lever force transmission system and a sensor), and a value display system (such as a scale dial and an electronic display instrument).

[0003] In today's combination of weighing and production and sales, the weighing equipment has attracted great attention, and the demand for the weighing equipment is also increasing.

[0004] However, the existing weighing equipment only performs single-direction protection of buffering and pressure limit, but does not perform pull limit protection in the rebound direction.

[0005] That is, only one direction is protected by limit, but not bidirectional limit protection. The measurement performance of such a structure is easily affected by transportation or accidental falling, etc., causing the measurement performance to exceed the standard.

[0006] Therefore, the skilled in the art designs a weighing equipment with bidirectional limit protection to overcome the above technical problems. SUMMARY

[0007] The present application aims to overcome the defects of the existing weighing equipment which only performs single-direction protection of buffering and pressure limit, and provides a weighing equipment with bidirectional limit protection.

[0008] The present application solves the above technical problems by the following technical scheme:

[0009] The weighing equipment with bidirectional limit protection comprises a base, a sensor, a bracket, and a scale pan. The sensor is installed in the base, one end of the sensor is fixed to the base, and the other end is fixed to the bracket. The bracket is located above the sensor and the base. The scale pan is installed on the bracket. The bottom surface of the bracket is provided with at least one first pressure limit. The base is provided with at least one rebound limit mechanism, which is located above the sensor.

[0010] According to one embodiment of the present application, the base is provided with at least one second pressure limit, which is located below the sensor.

[0011] According to one embodiment of the present application, the second pressure limiting position is located below the other end of the sensor.

[0012] According to one embodiment of the present application, the first pressure limiting position is arranged at both ends of the bracket and above the base.

[0013] According to one embodiment of the present application, the base is provided with a mounting hole position, and the sensor is mounted in the mounting hole position, with one end of the sensor fixedly connected to the bottom surface of the mounting hole position.

[0014] According to one embodiment of the present application, one end of the sensor is connected to the bottom surface of the mounting hole position through a fastening screw.

[0015] According to one embodiment of the present application, the rebound limiting mechanism is a limiting plate, which is fixed at the upper end opening of the mounting hole position, and the bracket is provided with a connecting portion penetrating into the limiting plate and connected to the other end of the sensor.

[0016] According to one embodiment of the present application, the side portion of the connecting portion connected to the other end of the sensor is provided with a protrusion, and the protrusion has a gap with the limiting plate.

[0017] According to one embodiment of the present application, at least one buffer pad is arranged between the scale pan and the bracket.

[0018] According to one embodiment of the present application, the first pressure limiting position has a gap with the upper end surface of the base, and the second pressure limiting position has a gap with the bottom surface of the sensor.

[0019] The positive progress effect of the present application is that:

[0020] The weighing device with bidirectional limiting protection of the present application combines a pressure limiting mechanism and a rebound limiting mechanism, which can protect the sensor from damage caused by impact and impact caused by reverse rebound, effectively protect the metering performance of the sensor, and realize bidirectional limiting protection. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other features, properties, and advantages of the present application will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which the same reference numerals are used throughout the drawings and represent the same elements and wherein:

[0022] Figure 1 FIG. 1 is a structural schematic diagram of the weighing device with bidirectional limiting protection of the present application.

[0023]

LIST OF REFERENCE NUMERALS

[0024] Base 10

[0025] Sensor 20

[0026] Bracket 30

[0027] Scale pan 40

[0028] One end of sensor 21

[0029] The other end of sensor 22

[0030] First pressure limit 31

[0031] Second pressure limit 11

[0032] Mounting hole 12

[0033] Fastening screw 13

[0034] Limiting plate 50

[0035] Connection 32

[0036] Protrusion 23

[0037] Cushion 60 DETAILED DESCRIPTION

[0038] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings.

[0039] The embodiments of the present application will now be described in detail with reference to the drawings. The preferred embodiments of the present application will now be described in detail with reference to the drawings. In all the drawings, the same reference numerals will be used to denote the same or similar parts, if possible.

[0040] In addition, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application can be created by the applicant himself or herself in his or her own judgment, and the detailed meanings thereof are described in relevant parts of the description herein.

[0041] In addition, the present application should not be understood merely based on the actual terms used, but also based on the meanings of each term implied.

[0042] Figure 1 The structure of the weighing device with bidirectional limiting protection of the present application is shown in the figure.

[0043] As Figure 1As shown, the weighing apparatus with bidirectional limiting protection comprises a base 10, a sensor 20, a bracket 30 and a scale pan 40, the sensor 20 is installed in the base 10, one end 21 of the sensor 20 is fixed with the base 10, the other end 22 is fixed with the bracket 30, the bracket 30 is located above the sensor 20 and the base 10, the scale pan 40 is installed on the bracket 30, the bottom surface of the bracket 30 is provided with at least a first pressure limiting part 31, the base 10 is provided with at least a rebound limiting mechanism, and the rebound limiting mechanism is located above the sensor 20.

[0044] Preferably, at least a second pressure limiting part 11 is arranged on the base 10, and the second pressure limiting part 11 is located below the sensor 20. For example, the second pressure limiting part 11 is located below the other end 22 of the sensor 20.

[0045] Further preferably, the first pressure limiting part 11 is arranged at both ends of the bracket 30 and above the base 10.

[0046] The first pressure limiting part 31 has a gap with the upper end surface of the base 10, and the second pressure limiting part 11 has a gap with the bottom surface of the sensor 20.

[0047] The first pressure limiting part 11 and the second pressure limiting part 11 arranged on the base and the bracket respectively can avoid damage to the sensor 20 caused by impact.

[0048] Preferably, an installation hole 12 is formed on the base 10, the sensor 20 is installed in the installation hole 12, and one end 21 of the sensor 20 is fixedly connected with the bottom surface of the installation hole 12. In this way, one end 21 of the sensor 20 is connected with the bottom surface of the installation hole 12 through a fastening screw 13.

[0049] Further preferably, the rebound limiting mechanism is preferably a limiting plate 50, the limiting plate 50 is fixed at the upper end opening of the installation hole 12, the bottom surface of the bracket 30 is provided with a connecting part 32, the connecting part 32 penetrates into the limiting plate 50 and is connected with the other end 22 of the sensor 20, for example, connected through a fastening screw 13.

[0050] The rebound limiting mechanism arranged in the rebound direction (or said pull limiting part) can effectively avoid damage to the sensor caused by impact when rebounding in the reverse direction.

[0051] Here, the side part of the connecting part 32 connected with the other end 22 of the sensor 20 is provided with a protrusion 23, and the protrusion 23 has a gap with the limiting plate 50.

[0052] Preferably, at least a buffer pad 60 is arranged between the scale pan 40 and the bracket 30, which can effectively reduce the impact strength.

[0053] According to the above structural description, the weighing performance of the sensor can be effectively protected by setting the pressure limiting mechanism on the bracket and the base, setting the rebound limiting mechanism in the rebound direction, and adding the way cushion pad of the scale disc and the bracket.

[0054] In conclusion, the weighing device with bidirectional limiting protection of the application combines the pressure limiting mechanism and the rebound limiting mechanism, which protects the sensor from the damage of impact and the damage of impact in the reverse rebound, effectively protects the weighing performance of the sensor, and realizes bidirectional limiting protection.

[0055] Although the specific embodiments of the application are described above, those skilled in the art should understand that these are only illustrative, the protection scope of the application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the application, and these changes and modifications all fall within the protection scope of the application.

Claims

1. A weighing apparatus with bidirectional limit protection, characterized in that, The weighing apparatus with bidirectional limiting protection is suitable for limiting protection in transportation or falling environment, comprising a base, a sensor, a bracket and a scale pan, the sensor is installed in the base, one end of the sensor is fixed with the base, the other end is fixed with the bracket, the bracket is above the sensor and the base, the scale pan is installed on the bracket, the bottom surface of the bracket is provided with at least a first pressure limiting, the base is provided with at least a rebound limiting mechanism, the rebound limiting mechanism is above the sensor; The base is provided with an installation hole, the sensor is installed in the installation hole, one end of the sensor is fixedly connected with the bottom surface of the installation hole; The rebound limiting mechanism is a limiting plate, the limiting plate is fixed at the upper end opening of the installation hole, the bottom surface of the bracket is provided with a connecting part, the connecting part penetrates into the limiting plate and is connected with the other end of the sensor; The side of the connecting part connected with the other end of the sensor is provided with a protrusion, and the protrusion has a gap with the limiting plate.

2. Weighing apparatus with bidirectional limit protection according to claim 1, characterized in that The base is provided with at least a second pressure limiting, and the second pressure limiting is below the sensor.

3. Weighing apparatus with bidirectional limit protection according to claim 2, characterized in that The second pressure limiting is below the other end of the sensor.

4. The load cell with bidirectional limit protection of claim 2, wherein, The first pressure limiting is arranged at both ends of the bracket and above the base.

5. The load cell with bidirectional limit protection of claim 1, wherein, One end of the sensor is connected with the bottom surface of the installation hole through a fastening screw.

6. The load cell with bidirectional limit protection of claim 1, wherein, At least a buffer pad is arranged between the scale pan and the bracket.

7. The load cell with bidirectional limit protection of claim 4, wherein, The first pressure limiting has a gap with the upper end surface of the base, and the second pressure limiting has a gap with the bottom surface of the sensor.

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