Metering calibration device for mechanical instrument
By designing the mechanical calibration components and the electric telescopic rod and tension sensor calibration device inside the packaging box, the problem of inflexible spring scale calibration was solved, achieving accurate calibration and wide applicability, and reducing errors and operational difficulty.
Patent Information
- Application Number
- CN202520377348.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing spring scale calibration instruments cannot flexibly adjust the tension, making it difficult to accurately calibrate spring scales of different models and ranges, thus limiting their applicability.
A metrological calibration device was designed, comprising a packaging box, a mechanical calibration component, an electric telescopic rod, and a tension sensor. The tension of the spring scale is adjusted by the electric telescopic rod and the tension sensor, and multiple tests are performed using counterweights of different masses to achieve accurate calibration.
It improves the accuracy of spring scale calibration and the practicality of the equipment, expands its application range, and reduces calibration errors and operational difficulty.
Smart Images
Figure CN223940440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of metrological calibration devices for mechanical instruments, specifically a metrological calibration device for mechanical instruments. Background Technology
[0002] Weighing equipment is often used in daily life. When weighing small items quickly, spring scales are usually used. However, the use of spring scales can easily cause changes in the elasticity of the spring, resulting in inaccurate readings of the tension value. Therefore, spring scales need to be calibrated. Existing calibration instruments for spring scales are not convenient for flexibly adjusting the tension of the spring scale according to its range, nor are they convenient for accurately calibrating the tension value of different models and ranges of spring scales, thus limiting their applicability. Utility Model Content
[0003] The purpose of this invention is to provide a metrological calibration device for mechanical instruments to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A metrological calibration device for mechanical instruments includes a packaging box. The inner wall of the packaging box stores a mechanical calibration component. The mechanical calibration component includes a base. A top plate is fixedly mounted on the top of the base via a bracket. A spring tension gauge is connected to the bottom outer wall of the top plate. A counterweight is connected to the bottom end of the spring tension gauge. A tension adjustment component is fixedly mounted on the top of the base. The tension adjustment component includes an electric telescopic rod and a tension sensor.
[0006] In a preferred embodiment of this utility model, the front outer wall of the packaging box is rotatably connected to the cover plate via a hinge, and the inner wall of the cover plate is magnetically connected to the inner wall of the packaging box around its perimeter.
[0007] In a preferred embodiment of this utility model, a shelf is fixedly installed on the inner wall of the packaging box, and the inner wall of the shelf is evenly provided with storage compartments. Each storage compartment contains a counterweight of different mass, and there are several counterweights.
[0008] In a preferred embodiment of this utility model, two brackets are symmetrically arranged on the left and right sides, and a first hook is fixedly installed on the bottom outer wall of the top plate.
[0009] In a preferred embodiment of this utility model, the tension adjustment assembly includes a base plate, and an electric telescopic rod is fixedly installed on the top outer wall of the base plate.
[0010] In a preferred embodiment of this utility model, a tension sensor is detachably and fixedly installed on the top outer wall of the electric telescopic rod via a flange, and a second hook is fixedly connected to the top outer wall of the tension sensor.
[0011] In a preferred embodiment of this utility model, a third hook is fixedly installed on the top outer wall of the counterweight, and a pull rope is fixedly connected to the bottom outer wall of the counterweight. The pull rope is engaged with the second hook.
[0012] In a preferred embodiment of this utility model, the total mass of the counterweight, the third hook, and the pull rope is marked on the outer wall of the counterweight, and the fourth hook is fixedly installed on the top outer wall of the spring tension gauge.
[0013] In a preferred embodiment of this utility model, the fourth hook is engaged with the first hook, and the bottom outer wall of the spring tension gauge is fixedly connected to the fifth hook, which is engaged with the third hook.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0015] 1. By setting up a mechanical calibration component to provide a definite tension value to the spring tension gauge, the tension reading displayed on the spring tension gauge can be compared with the reading. This facilitates multiple tests using counterweights of different masses, improving the accuracy of the spring tension gauge calibration and reducing calibration errors to a certain extent.
[0016] 2. By setting up an electric telescopic rod and a tension sensor to provide tension to the bottom of the counterweight, it is convenient to provide tension to the bottom of the counterweight, thereby facilitating the adjustment of the tension of the spring tension gauge. This allows for adjustment of the tension range according to different ranges of the spring tension gauge, improving the practicality and applicability of the equipment. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the main structure of a metrological calibration device for mechanical instruments.
[0019] Figure 2 This is a schematic diagram of the internal structure of a storage box in a metrological calibration device for mechanical instruments.
[0020] Figure 3 This is a schematic diagram of the mechanical calibration component in a metrological calibration device for mechanical instruments.
[0021] Figure 4 This is a schematic diagram of the counterweight structure in a metrological calibration device used for mechanical instruments.
[0022] In the diagram: Packaging box 100, cover plate 110, shelf 120, base 200, bracket 210, top plate 220, first hook 221, counterweight 230, third hook 231, pull rope 232, base plate 300, electric telescopic rod 310, tension sensor 320, second hook 321, spring tension gauge 400, fourth hook 410, fifth hook 420. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0024] Example 1: As Figures 1-4 The system includes a packaging box 100, the inner wall of which stores a mechanical calibration component. The mechanical calibration component includes a base 200, the top of which is fixedly mounted with a top plate 220 via a bracket 210, the bottom outer wall of which is connected to a spring tension gauge 400, and the bottom end of the spring tension gauge 400 is connected to a counterweight 230. A tension adjustment component is fixedly mounted on the top of the base 200, and the tension adjustment component includes an electric telescopic rod 310 and a tension sensor 320.
[0025] The specific application scenario of this embodiment is as follows: By setting up a mechanical calibration component to provide a definite tension value to the spring tension gauge 400, the tension reading displayed on the spring tension gauge 400 can be compared, facilitating multiple tests with counterweights 230 of different masses. This improves the accuracy of the calibration of the spring tension gauge 400 and reduces calibration errors to a certain extent. By setting up an electric telescopic rod 310 and a tension sensor 320 to provide tension to the bottom of the counterweight 230, it is convenient to provide tension to the bottom of the counterweight 230, thereby facilitating the adjustment of the tension of the spring tension gauge 400. This allows for adjustment of the tension range according to different ranges of the spring tension gauge 400, improving the practicality and applicability of the equipment. The tension sensor 320 is EL20-S458.
[0026] Example 2: As Figure 1 and Figure 2 The front outer wall of the packaging box 100 is connected to the cover plate 110 by a hinge, and the inner wall of the cover plate 110 is magnetically connected to the inner wall of the packaging box 100.
[0027] The specific application scenario of this embodiment is as follows: by setting the cover plate 110 and the packaging box 100 together, it is used to store the mechanical calibration components.
[0028] Example 3: As Figure 1 and Figure 2 A shelf 120 is fixedly installed on the inner wall of the packaging box 100. The inner wall of the shelf 120 is evenly provided with storage compartments, and the storage compartments contain counterweights 230 of different masses. There are several counterweights 230.
[0029] The specific application scenario of this embodiment is as follows: by setting up a shelf 120 for installing a counterweight 230, it is convenient to store items through the counterweight 230, and convenient to provide a pulling force to the bottom of the spring tension gauge 400, so that the operator can compare the pulling force reading of the spring tension gauge 400 with the weight of the counterweight 230.
[0030] Example 4: Figure 3 Two brackets are symmetrically arranged on the left and right sides of the bracket 210. The first hook 221 is fixedly installed on the bottom outer wall of the top plate 220. The tension adjustment assembly includes a base plate 300. An electric telescopic rod 310 is fixedly installed on the top outer wall of the base plate 300. A tension sensor 320 is detachably fixedly installed on the top outer wall of the electric telescopic rod 310 through a flange. The second hook 321 is fixedly connected to the top outer wall of the tension sensor 320.
[0031] The specific application scenario of this embodiment is as follows: by setting an electric telescopic rod 310 to control the pulling force provided to the bottom end of the tension sensor 320, the pulling force on the spring tension gauge 400 is adjusted, thereby facilitating the comparison between the pulling force of the spring tension gauge 400 and the pulling force value displayed on the spring tension gauge 400, and improving the practicality of the equipment.
[0032] Example 5: Figure 3 and Figure 4 A third hook 231 is fixedly installed on the top outer wall of the counterweight 230, and a pull rope 232 is fixedly connected to the bottom outer wall of the counterweight 230. The pull rope 232 is engaged with the second hook 321.
[0033] The total mass of the counterweight 230, the third hook 231, and the pull rope 232 is marked on the outer wall of the counterweight 230. The fourth hook 410 is fixedly installed on the top outer wall of the spring tension gauge 400. The fourth hook 410 is engaged with the first hook 221. The fifth hook 420 is fixedly connected to the bottom outer wall of the spring tension gauge 400. The fifth hook 420 is engaged with the third hook 231.
[0034] The specific application scenario of this embodiment is as follows: by activating the electric telescopic rod 310 to pull down the tension sensor 320, the tension sensor 320 provides a pull to the bottom end of the counterweight 230, thereby automatically increasing the tension of the counterweight 230 on the bottom end of the spring tension gauge 400, thus facilitating flexible adjustment of the spring tension gauge 400, improving the practicality of the equipment and the convenience of operation.
[0035] The working principle of this utility model is as follows: After use, those skilled in the art will hang the calibrated spring tension gauge 400 on the first hook 221 at the bottom of the top plate 220 via the fourth hook 410. Then, according to the range of the spring tension gauge 400, multiple counterweights 230 of different masses will be selected, and the corresponding individual counterweights 230 will be hung on the fifth hook 420 at the bottom of the spring tension gauge 400 via the second hook 321. By comparing the reading of the spring tension gauge 400 with the reading marked on the corresponding counterweight 230, it can be determined whether the spring tension gauge 400 is displaying correctly. If the reading is incorrect, adjust and calibrate the spring tension gauge 400, then replace it with a counterweight 230 of different mass and check the reading of the spring tension gauge 400 again. By opening the electric telescopic rod 310 on the second hook 321 at the top of the tension sensor 320, the tension sensor 320 pulls on the bottom end of the counterweight 230, thereby automatically increasing the pulling force of the counterweight 230 on the bottom end of the spring tension gauge 400. This allows for convenient and flexible adjustment of the spring tension gauge 400, improving the practicality and ease of operation of the equipment.
[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A metrological calibration device for mechanical instruments, comprising a packaging box (100), the inner wall of which stores mechanical calibration components, characterized in that, The mechanical calibration component includes a base (200), a top plate (220) is fixedly installed on the top of the base (200) by a bracket (210), a spring tension gauge (400) is connected to the bottom outer wall of the top plate (220), a counterweight (230) is connected to the bottom end of the spring tension gauge (400), and a tension adjustment component is fixedly installed on the top of the base (200). The tension adjustment component includes an electric telescopic rod (310) and a tension sensor (320).
2. The metrological calibration device for mechanical instruments according to claim 1, characterized in that, The front outer wall of the packaging box (100) is connected to the cover plate (110) by a hinge, and the inner wall of the cover plate (110) is magnetically connected to the inner wall of the packaging box (100) around the perimeter.
3. The metrological calibration device for mechanical instruments according to claim 1, characterized in that, The inner wall of the packaging box (100) is fixedly equipped with a shelf (120). The inner wall of the shelf (120) is evenly provided with storage compartments. The storage compartments contain counterweights (230) of different masses. There are several counterweights (230).
4. A metrological calibration device for mechanical instruments according to claim 1, characterized in that, Two brackets (210) are symmetrically arranged on the left and right sides, and the first hook (221) is fixedly installed on the bottom outer wall of the top plate (220).
5. A metrological calibration device for mechanical instruments according to claim 4, characterized in that, The tension adjustment assembly includes a base plate (300), and an electric telescopic rod (310) is fixedly installed on the top outer wall of the base plate (300).
6. A metrological calibration device for mechanical instruments according to claim 5, characterized in that, The top outer wall of the electric telescopic rod (310) is detachably and fixedly mounted with a tension sensor (320) via a flange, and the top outer wall of the tension sensor (320) is fixedly connected to a second hook (321).
7. A metrological calibration device for mechanical instruments according to claim 1, characterized in that, A third hook (231) is fixedly installed on the top outer wall of the counterweight (230), and a pull rope (232) is fixedly connected to the bottom outer wall of the counterweight (230). The pull rope (232) is engaged with the second hook (321).
8. A metrological calibration device for mechanical instruments according to claim 7, characterized in that, The total mass of the counterweight (230), the third hook (231), and the pull rope (232) is marked on the outer wall of the counterweight (230), and the fourth hook (410) is fixedly installed on the top outer wall of the spring tension gauge (400).
9. A metrological calibration device for mechanical instruments according to claim 8, characterized in that, The fourth hook (410) is engaged with the first hook (221), and the bottom outer wall of the spring tension gauge (400) is fixedly connected to the fifth hook (420), which is engaged with the third hook (231).