High-precision digital weighing force transducer

Abstract

The utility model relates to the technical field of weighing instruments, and discloses a high-precision digital weighing force transducer, which comprises a transducer body and a fixed seat, and can obtain extra supporting and bearing capacity and keep a stable fixed state in the mounting process through designed reinforcing components such as a stabilizing rack, a stabilizing gear and a connecting rod, so that the sensor is convenient to mount and maintain. An external thread ring is in threaded fit with an internal thread ring by rotating a crank, so that a pressing plate is driven to downwards clamp a sensor body, a connecting rod is connected with a stabilizing gear through a sliding groove, the position of the stabilizing gear can be adjusted to ensure that the clamping force meets the requirement, a damping block is designed to be a semispherical block and can be in interference fit with the surface of a sensor, and the damping effect is good. When the pressure plate applies pressure, buffering and stable supporting are provided, so that stable installation of the sensor is maintained, the influence of adverse factors is reduced, and the precision and stability of weighing measurement are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing instruments, in particular to a high-precision digital weighing force sensor. Background Art

[0002] A high-precision digital weighing force sensor is a device that can convert the force applied to it into an electrical signal output to achieve accurate measurement of weight or force. This sensor usually consists of a pair of measuring bodies (such as strain gauges, air pressure, etc.) and an electronic converter. When an external force acts on the sensor, the measuring body produces a slight deformation, thereby changing its resistance, capacitance or voltage characteristics. The electronic converter converts these changes into digital signals and outputs them to the user.

[0003] The accuracy of high-precision digital weighing force sensors is usually measured by their resolution, nonlinear error, repeatability error, sensitivity and other indicators. These sensors can have different measurement ranges and load capacities to meet different application requirements. In industrial production, they are often used in quality control, automated production lines and packaging processes; in laboratory research, they can be used in fields such as material testing and biomechanical research; in medical equipment, they can be used in weight scales, medical equipment and other aspects.

[0004] When installing some weighing force sensors, the sensor is mainly inserted into the fixing seat, and then the control lever is moved to press the pressure plate toward one end of the sensor to achieve clamping and fixing. However, this installation method has weak bearing capacity, which may cause loosening or falling during operation, causing the equipment to topple or fall, posing a safety hazard to personnel or equipment. Therefore, it does not meet the existing needs. For this reason, we have proposed a high-precision digital weighing force sensor. Utility Model Content

[0005] The utility model provides a high-precision digital weighing force sensor, which has the advantages of maintaining the stable installation of the sensor and reducing the influence of adverse factors, effectively improving the accuracy and stability of weighing measurement, and solving the problem mentioned in the above background technology that the installation method has weak bearing capacity, which may lead to loosening or falling during operation, causing the equipment to topple or fall, and posing a safety hazard to personnel or equipment.

[0006] The utility model provides the following technical solution: a high-precision digital weighing force sensor, comprising a sensor body and a fixing seat, and an electric wire installed at the end of the sensor body for external electrical connection, a placement groove for placing the sensor body is opened in the fixing seat, one end of the sensor body is plugged into the placement groove, a pressure plate for clamping the sensor body is movably installed in the placement groove, a driving rod is installed on the top of the pressure plate, a driving groove corresponding to the driving rod is opened in the fixing seat, a crank for driving the driving rod is arranged at the end of the driving rod, and a reinforcement component is arranged in the fixing seat.

[0007] As an optional solution for the high-precision digital weighing force sensor described in the utility model, the reinforcement component includes a cavity opened in the fixed seat, a stabilizing rack is arranged in the cavity, a stabilizing gear is arranged on the side of the stabilizing rack, the stabilizing gear is meshed with the stabilizing rack, connecting rods are fixedly installed on both sides of the pressure plate, and the ends of the connecting rods are plugged into the stabilizing gears.

[0008] As an optional solution for the high-precision digital weighing force sensor described in the utility model, a sliding groove is opened in the fixed seat, the sliding groove is connected to the cavity, the width of the sliding groove corresponds to the diameter of the connecting rod, and the connecting rod is connected to the stabilizing gear through the sliding groove.

[0009] As an optional solution for the high-precision digital weighing force sensor described in the utility model, a spline groove is opened in the stabilizing gear, a spline block corresponding to the spline groove is fixedly installed on the end of the connecting rod, and the spline block is fixedly engaged with the spline groove.

[0010] As an optional solution of the high-precision digital weighing force sensor described in the utility model, wherein: the driving rod is provided with an external thread section on the outside, the driving groove is provided with an internal thread section, and the internal thread section is threadably matched with the external thread section.

[0011] As an optional solution for the high-precision digital weighing force sensor described in the utility model, a damping block is fixedly installed on one side of the pressure plate close to the sensor body, and the damping block is configured as a hemispherical block. When the driving rod controls the pressure plate to press downward, the damping block is interference fit with the surface of the sensor body.

[0012] As an optional solution for the high-precision digital weighing force sensor described in the utility model, wherein: the fixing seat is provided with a buffer groove away from the placement groove, a buffer plate is arranged in the buffer groove, and the buffer plate is located on the bottom side of the sensor body.

[0013] As an optional solution of the high-precision digital weighing force sensor described in the utility model, a buffer rod is arranged between the buffer groove and the buffer plate, and a buffer spring is arranged on the outer sleeve of the buffer rod.

[0014] 1. This high-precision digital weighing force sensor, through the designed reinforcement components, such as stable racks, stable gears and connecting rods, etc., the sensor can obtain additional support and load-bearing capacity during the installation process, maintain a stable fixed state, and make the external thread ring and the internal thread ring threaded by turning the crank, so as to drive the pressure plate to clamp the sensor body downward. The connecting rod is connected to the stable gear through a sliding groove, and the position of the stable gear can be adjusted to ensure that the clamping force meets the requirements. The damping block is designed as a hemispherical block, which can be interference fit with the sensor surface, and provide buffering and stable support when the pressure plate applies pressure, thereby maintaining the stable installation of the sensor and reducing the influence of adverse factors, effectively improving the accuracy and stability of weighing measurement, and providing users with a simple and easy-to-operate use process, which helps to ensure the safe and stable operation of the equipment.

[0015] 2. The high-precision digital weighing force sensor has a buffer groove when the fixing seat is away from the placement groove. The buffer groove is provided with a buffer plate, so that the impact generated by the sensor during use can be effectively absorbed. The buffer plate is located on the bottom side of the sensor, so that additional support can be provided for the sensor, and the buffer rod and buffer spring play a connecting and absorbing role, further enhancing the stability and safety of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the main body cutaway structure of the utility model.

[0018] Figure 3 It is a side view cutaway structural schematic diagram of the utility model.

[0019] Figure 4 It is a partially cutaway structural schematic diagram of the utility model.

[0020] In the figure: 100, sensor body; 110, electric wire; 200, fixing seat; 210, placement groove; 220, pressure plate; 221, damping block; 230, driving rod; 231, crank; 232, external thread section; 240, driving groove; 241, internal thread section; 300, reinforcement component; 310, cavity; 320, stabilizing rack; 330, stabilizing gear; 331, spline groove; 340, connecting rod; 341, spline block; 350, sliding groove; 360, buffer groove; 361, buffer plate; 362, buffer rod; 363, buffer spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1: This embodiment is intended to help solve the problem that this installation method has a weak bearing capacity, which may cause loosening or falling during operation, causing the equipment to topple or fall, posing a safety hazard to personnel or equipment. Please refer to Figure 1 - Figure 4 A high-precision digital weighing force sensor includes a sensor body 100 and a fixing seat 200, and an electric wire 110 installed at the end of the sensor body 100 for external electrical connection. A placement groove 210 for placing the sensor body 100 is opened in the fixing seat 200. One end of the sensor body 100 is plugged into the placement groove 210. A pressure plate 220 for clamping the sensor body 100 is movably installed in the placement groove 210. A driving rod 230 is installed on the top of the pressure plate 220. A driving groove 240 corresponding to the driving rod 230 is opened in the fixing seat 200. A crank 231 for driving the driving rod 230 is arranged at the end of the driving rod 230. A reinforcement component 300 is arranged in the fixing seat 200.

[0023] The reinforcement assembly 300 includes a cavity 310 opened in the fixing seat 200, a stabilizing rack 320 is arranged in the cavity 310, a stabilizing gear 330 is arranged on the side of the stabilizing rack 320, and the stabilizing gear 330 is meshed with the stabilizing rack 320. Connecting rods 340 are fixedly installed on both sides of the pressure plate 220, and the ends of the connecting rods 340 are plugged with the stabilizing gear 330. A sliding groove 350 is opened in the fixing seat 200, and the sliding groove 350 is connected with the cavity 310. The width of the sliding groove 350 corresponds to the diameter of the connecting rod 340, and the connecting rod 340 is plugged with the stabilizing gear 330 through the sliding groove 350.

[0024] A spline groove 331 is provided in the stabilizing gear 330, and a spline block 341 corresponding to the spline groove 331 is fixedly installed at the end of the connecting rod 340, and the spline block 341 is fixedly engaged with the spline groove 331. An external thread section 232 is provided on the outside of the driving rod 230, and an internal thread section 241 is provided in the driving groove 240, and the internal thread section 241 is threadedly engaged with the external thread section 232. A damping block 221 is fixedly installed on the side of the pressure plate 220 close to the sensor body 100, and the damping block 221 is set as a hemispherical block. When the driving rod 230 controls the pressure plate 220 to press downward, the damping block 221 is interference fit with the surface of the sensor body 100.

[0025] During installation, the sensor body 100 is inserted into the placement groove 210 in the fixing seat 200. At this time, the crank 231 is turned to make the external thread ring and the internal thread ring threadedly cooperate, thereby driving the pressing plate 220 to clamp the sensor body 100 downward. At the same time, the stabilizing gear 330 is controlled to mesh with the stabilizing rack 320 during the pressing process, so as to provide additional support and bearing capacity to maintain the stability of the sensor and the fixing seat 200. The connecting rod 340 is connected to the stabilizing gear 330 through the sliding groove 350. This design allows the connecting rod 340 to move along the sliding groove 350, thereby adjusting the position of the stabilizing gear 330 to ensure that the installation position and clamping force of the sensor meet the requirements. The damping block 221 is set as a hemispherical block. When the pressing plate 220 applies pressure downward, the damping block 221 is interference fit with the surface of the sensor body 100, which can reduce vibration and unstable factors as much as possible and ensure the stable installation of the sensor. Finally, the wire 110 is connected to the weighing measurement of the object.

[0026] In this embodiment: through the designed reinforcement component 300, such as the stabilizing rack 320, the stabilizing gear 330 and the connecting rod 340, the sensor can obtain additional support and load-bearing capacity during the installation process, maintain a stable fixed state, and the external threaded ring is threadedly matched with the internal threaded ring by turning the crank 231, thereby driving the pressure plate 220 to clamp the sensor body 100 downward, and the connecting rod 340 is connected to the stabilizing gear 330 through the sliding groove 350, and the position of the stabilizing gear 330 can be adjusted to ensure that the clamping force meets the requirements. The damping block 221 is designed as a hemispherical block, which can be interference fit with the sensor surface, and provide buffering and stable support when the pressure plate 220 applies pressure, thereby maintaining the stable installation of the sensor and reducing the influence of adverse factors, effectively improving the accuracy and stability of weighing measurement, and providing users with a simple and easy-to-operate use process, which helps to ensure the safe and stable operation of the equipment.

[0027] Embodiment 2: This embodiment is intended to solve the problem that if the sensor is installed in an unstable manner and has a weak bearing capacity, it is easy to loosen or fall off during operation. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 4 The fixing seat 200 is provided with a buffer groove 360 ​​away from the placement groove 210, and a buffer plate 361 is provided in the buffer groove 360, and the buffer plate 361 is located at the bottom side of the sensor body 100. A buffer rod 362 is provided between the buffer groove 360 ​​and the buffer plate 361, and a buffer spring 363 is provided on the outer sleeve of the buffer rod 362.

[0028] In this embodiment: when the buffer groove 360 ​​is opened in the fixing seat 200 away from the placement groove 210, the buffer groove 360 ​​is opened in the fixing seat 200 away from the placement groove 210, and a buffer plate 361 is arranged in the buffer groove 360, so that the impact generated by the sensor during use can be effectively absorbed. The buffer plate 361 is located on the bottom side of the sensor, so that additional support can be provided for the sensor, and the buffer rod 362 and the buffer spring 363 play a connecting and absorbing role, further enhancing the stability and safety of the sensor.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-precision digital weighing force sensor, comprising a sensor body (100) and a fixing seat (200), and an electric wire (110) installed at the end of the sensor body (100) for external electrical connection, characterized in that: The fixing seat (200) is provided with a placement groove (210) for placing the sensor body (100), one end of the sensor body (100) is plugged into the placement groove (210), a pressure plate (220) for clamping the sensor body (100) is movably installed in the placement groove (210), a driving rod (230) is installed on the top of the pressure plate (220), a driving groove (240) corresponding to the driving rod (230) is provided in the fixing seat (200), a crank (231) for driving the driving rod (230) is provided at the end of the driving rod (230), and a reinforcement component (300) is provided in the fixing seat (200).

2. The high-precision digital weighing force sensor according to claim 1 is characterized in that: The reinforcement component (300) includes a cavity (310) opened in the fixing seat (200), a stabilizing rack (320) is arranged in the cavity (310), a stabilizing gear (330) is arranged on the side of the stabilizing rack (320), and the stabilizing gear (330) is meshed with the stabilizing rack (320), and connecting rods (340) are fixedly installed on both sides of the pressure plate (220), and the ends of the connecting rods (340) are plugged into the stabilizing gear (330).

3. The high-precision digital weighing force sensor according to claim 2 is characterized in that: A sliding groove (350) is provided in the fixing seat (200), the sliding groove (350) is communicated with the cavity (310), the width of the sliding groove (350) corresponds to the diameter of the connecting rod (340), and the connecting rod (340) is plugged into the stabilizing gear (330) through the sliding groove (350).

4. The high-precision digital weighing force sensor according to claim 2, characterized in that: A spline groove (331) is provided in the stabilizing gear (330), and a spline block (341) corresponding to the spline groove (331) is fixedly mounted on the end of the connecting rod (340), and the spline block (341) is fixedly engaged with the spline groove (331).

5. The high-precision digital weighing force sensor according to claim 1, characterized in that: The driving rod (230) is provided with an external thread section (232) on the outside, and the driving groove (240) is provided with an internal thread section (241) in the inside, and the internal thread section (241) is threadably matched with the external thread section (232).

6. The high-precision digital weighing force sensor according to claim 1, characterized in that: A damping block (221) is fixedly mounted on one side of the pressure plate (220) close to the sensor body (100); the damping block (221) is configured as a hemispherical block; when the driving rod (230) controls the pressure plate (220) to be pressed downward, the damping block (221) is in interference fit with the surface of the sensor body (100).

7. The high-precision digital weighing force sensor according to claim 1, characterized in that: A buffer groove (360) is provided in the fixing seat (200) away from the placement groove (210), a buffer plate (361) is provided in the buffer groove (360), and the buffer plate (361) is located at the bottom side of the sensor body (100).

8. The high-precision digital weighing force sensor according to claim 7, characterized in that: A buffer rod (362) is provided between the buffer groove (360) and the buffer plate (361), and a buffer spring (363) is disposed on the outer sleeve of the buffer rod (362).

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