Measuring instrument accuracy online detection device

By designing automatic dispensing, drying, and water injection components, the instrument testing is automated and efficient, solving the problems of cumbersome traditional testing methods that affect test results, and ensuring the accuracy and reliability of data for each test.

CN224136641UActive Publication Date: 2026-04-17SHANDONG NORTH CHINA IND METROLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG NORTH CHINA IND METROLOGY CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional metering methods are cumbersome and can easily affect test results, especially if water is not treated in a timely manner, which can affect the next test.

Method used

An automatic dispensing component, a drying component, and a water injection component were designed. By using servo motors and gear systems, the metering instrument can be automatically dispensed, dried, and injected with water, reducing manual operation.

Benefits of technology

It has achieved automation and efficiency in the testing of measuring instruments, ensuring the accuracy of each test and the reliability of the data, and reducing errors caused by manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of measuring instrument devices, in particular to a measuring instrument accuracy online detection device which comprises a base, an automatic throwing assembly is arranged on the base, and a drying assembly and a water injection assembly are arranged on the base and located on the two sides of the automatic throwing assembly respectively. When water flow needs to be thrown, the output end of a second telescopic cylinder pushes a bearing box and meanwhile pushes a first telescopic cylinder connected with a driving plate to rotate, at the moment, the measuring instrument body can be rotated by a certain angle, and when a top opening of the measuring instrument body rotates to the area above a measuring comparison barrel, a flow guide plate can be used in a matched mode to prevent the water flow from spilling out. The whole operation process is quick and convenient, and the traditional manual pouring process is replaced; according to the utility model, the drying assembly is arranged, and before or after the accuracy is detected, the drying seat is started to further blow-dry redundant water inside, so that the next measurement is ensured to be correct.
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Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, specifically to an online accuracy detection device for measuring instruments. Background Technology

[0002] Measuring instruments refer to devices, instruments, gauges, and standard substances used to unify measurement values, which can be used to directly or indirectly measure the value of the measured object. They include metrological references, metrological standards, and working measuring instruments.

[0003] However, after the measuring instruments are manufactured, the accuracy of their scale lines needs to be tested to ensure their normal use. However, the traditional testing method is usually manual, requiring staff to first inject water into the measuring instrument and then pour it into a measuring cylinder for comparison. This testing method is not only too cumbersome, but also leaves some water in the measuring cylinder after testing one measuring instrument. If not dealt with in time, it will affect the test results of the next measuring instrument. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed online accuracy detection device for measuring instruments, which can solve the aforementioned deficiencies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, on which an automatic dispensing component is provided, and on both sides of the automatic dispensing component, a drying component and a water injection component are respectively provided.

[0006] Preferably, the automatic dispensing assembly includes two rotating shaft seats fixedly connected to the base, with rotating shafts rotatably mounted on the two rotating shaft seats. Telescopic cylinders are mounted on the two rotating shafts, and clamping plates are mounted at the output ends of the two telescopic cylinders. A driving plate is fixedly connected to the bottom of the two telescopic cylinders, and a carrying box is connected to the end of the two driving plates away from the telescopic cylinders. A measuring instrument body is mounted on the carrying box. A fixing plate is mounted on the base, and a second telescopic cylinder is hinged to the fixing plate. The output end of the second telescopic cylinder is hinged to the carrying box. Two connecting plates are mounted on the side of the fixing plate opposite to the second telescopic cylinder, and a measuring comparison cylinder is slidably connected to the two connecting plates.

[0007] Preferably, the measuring comparison cylinder is symmetrically provided with T-shaped guide rails, and the two connecting plates are provided with T-shaped guide rail grooves corresponding to the T-shaped guide rails. The T-shaped guide rails move within the T-shaped guide rail grooves, and the top of the measuring comparison cylinder is also provided with a flow guide plate.

[0008] Preferably, the drying assembly includes a mounting base fixedly connected to a base, a rotating shaft rotatably mounted on the mounting base, a driven gear on the rotating shaft, a servo motor fixedly connected to the mounting base, a driving gear on the transmission end of the servo motor, the driving gear meshing with the driven gear, a rotating plate fixedly connected to the top of the rotating shaft, a drying seat on the rotating plate, an L-shaped plate at the end of the rotating plate away from the drying seat, a horizontal plate on the L-shaped plate, a plurality of drying ports I at the bottom of the rotating plate, the plurality of drying ports I corresponding to the measuring instrument body, and a plurality of drying ports II at the bottom of the horizontal plate, the plurality of drying ports II corresponding to the measuring comparison cylinder.

[0009] Preferably, the drying base is connected to a plurality of drying ports one and a plurality of drying ports two.

[0010] Preferably, the water injection assembly includes a second mounting base fixedly connected to the base, a second rotating shaft rotatably mounted on the second mounting base, a second driven gear on the second rotating shaft, a second servo motor fixedly connected to the second mounting base, a second driving gear on the transmission end of the second servo motor, the second driving gear meshing with the second driven gear, and an outlet pipe and an inlet pipe at the top of the second rotating shaft, the inlet pipe being connected to the outlet pipe.

[0011] Preferably, a pull rod is provided on one side of the two pivot seats on the base.

[0012] The beneficial effects of this utility model after adopting the above structure are:

[0013] This invention features an automatic dispensing component. When water needs to be dispensed, simply activate the second telescopic cylinder. The output end of the second telescopic cylinder pushes the carrier box, simultaneously causing the first telescopic cylinder, connected to the drive plate, to rotate. This allows the measuring instrument to rotate at a certain angle. When the top opening of the measuring instrument rotates to the area above the measuring comparison cylinder, the guide plate can be used to prevent water from spilling out, ensuring accurate detection. The entire operation is quick and convenient, replacing the traditional manual pouring process.

[0014] This invention, by setting up a drying component, allows the operator to start a servo motor before or after accuracy testing. The transmission end of the servo motor drives the drive gear to rotate. Simultaneously, since the drive gear meshes with the driven gear, the shaft rotates. Furthermore, due to the specially set parameters of the servo motor, several drying ports are positioned directly above the measuring instrument body, and several drying ports are positioned directly above the measuring comparison cylinder. By activating the drying base, excess moisture inside is further dried, ensuring accuracy for the next measurement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model when the drying component is not in operation;

[0017] Figure 3 This is a schematic diagram of the structure of the automatic dispensing component of this utility model;

[0018] Figure 4 This is a top view of the structure of the automatic dispensing component of this utility model;

[0019] Figure 5 This is an exploded view of the structure of the measuring comparison cylinder of this utility model detached from the two connecting plates;

[0020] Figure 6 This is a schematic diagram of the structure of the drying component of this utility model;

[0021] Figure 7 This is a bottom structural view of the drying assembly of this utility model;

[0022] Figure 8 This is a structural schematic diagram of the water injection component of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Automatic dispensing assembly; 21. Rotary shaft seat; 22. Rotary shaft; 23. Telescopic cylinder one; 24. Clamping plate; 25. Measuring instrument body; 26. Driving plate; 27. Carrier box; 28. Fixing plate; 29. ​​Telescopic cylinder two; 210. Connecting plate; 211. Measuring comparison cylinder; 212. T-shaped guide rail groove; 213. T-shaped guide rail; 214. Guide plate; 3. Drying assembly; 31. Mounting base one; 32. 33. Driven gear 1; 34. Servo motor 1; 35. Drive gear 1; 36. Rotating plate; 37. L-shaped plate; 38. Horizontal plate; 39. Drying seat; 310. Drying port 1; 311. Drying port 2; 4. Water injection assembly; 41. Mounting base 2; 42. Rotary shaft 2; 43. Driven gear 2; 44. Servo motor 2; 45. Drive gear 2; 46. Water outlet pipe; 47. Water inlet pipe; 5. Pull rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-8 As shown, the online accuracy detection device for measuring instruments proposed in this utility model includes a base 1, an automatic dispensing component 2 is provided on the base 1, and a drying component 3 and a water injection component 4 are respectively provided on both sides of the automatic dispensing component 2 on the base 1.

[0027] The automatic dispensing component 2 includes two rotating shaft seats 21 fixedly connected to the base 1. A rotating shaft 22 is rotatably mounted on the two rotating shaft seats 21. A telescopic cylinder 23 is provided on the two rotating shafts 22. A clamping plate 24 is provided at the output end of the two telescopic cylinders 23 to stably clamp the measuring instrument body 25. A driving plate 26 is fixedly connected to the bottom of the two telescopic cylinders 23. The end of the two driving plates 26 away from the telescopic cylinders 23 is connected to a bearing box 27 to support the measuring instrument body 25. The measuring instrument body 25 is provided on the bearing box 27. A fixing plate 28 is provided on the base 1. A telescopic cylinder 29 is hinged on the fixing plate 28. The output end of the telescopic cylinder 29 is hinged to the bearing box 27. Two connecting plates 210 are provided on the side of the fixing plate 28 opposite to the telescopic cylinder 29. A measuring comparison cylinder 211 is slidably connected to the two connecting plates 210.

[0028] The measuring comparison cylinder 211 is symmetrically provided with T-shaped guide rails 213, and the two connecting plates 210 are provided with T-shaped guide rail grooves 212 corresponding to the T-shaped guide rails 213. The T-shaped guide rails 213 move within the T-shaped guide rail grooves 212. The top of the measuring comparison cylinder 211 is also provided with a flow guide plate 214, which can prevent the measuring instrument body 25 from spilling out when water is poured in.

[0029] The drying assembly 3 includes a mounting base 31 fixedly connected to the base 1. A rotating shaft 32 is rotatably mounted on the mounting base 31. A driven gear 33 is provided on the rotating shaft 32. A servo motor 34 is fixedly connected to the mounting base 31. A driving gear 35 is provided on the transmission end of the servo motor 34. The driving gear 35 meshes with the driven gear 33. When the transmission end of the servo motor 34 rotates, it can simultaneously drive the rotating shaft 32 to rotate. A rotating plate 36 is fixedly connected to the top of the rotating shaft 32. A drying seat 39 is provided on the top of the rotating plate 36. An L-shaped plate 37 is provided at the end of the rotating plate 36 away from the drying seat 39. A horizontal plate 38 is provided on the L-shaped plate 37. Several drying ports 310 are provided at the bottom of the rotating plate 36. The drying ports 310 are corresponding to the measuring instrument body 25. Several drying ports 311 are provided at the bottom of the horizontal plate 38. The drying ports 311 are corresponding to the measuring comparison cylinder 211. This further dries the moisture in the measuring instrument body 25 and the measuring comparison cylinder 211, ensuring the accuracy of the data.

[0030] The drying base 39 is connected to several drying ports 310 and several drying ports 311 to ensure the normal operation of the drying process;

[0031] Water injection component 4 includes a mounting base 2 41 fixedly connected to the base 1, a rotating shaft 2 42 rotatably mounted on the mounting base 2 41, a driven gear 2 43 provided on the rotating shaft 2 42, a servo motor 2 44 fixedly connected to the mounting base 2 41, a driving gear 2 45 provided at the transmission end of the servo motor 2 44, the driving gear 2 45 meshing with the driven gear 2 43, when the transmission end of the servo motor 2 44 rotates, it can simultaneously drive the rotating shaft 2 42 to rotate, the top of the rotating shaft 2 42 is provided with a water outlet pipe 46 and a water inlet pipe 47, the water inlet pipe 47 is connected to the water outlet pipe 46 to ensure the input of water flow;

[0032] A pull rod 5 is provided on one side of the two rotating shaft seats 21 on the base 1, so that the staff can use the pull rod 5 to move the position of the device.

[0033] The principle and usage process of this utility model:

[0034] Before use, the staff first connects the servo motor 34 and servo motor 44 to the external power supply. Then, during actual use, the staff first puts the measuring instrument body 25 to be tested into the carrier box 27, and then starts the two telescopic cylinders 23. The output ends of the two telescopic cylinders 23 push the clamping plate 24 to clamp the measuring instrument body 25, achieving the positioning effect.

[0035] After clamping, the measuring instrument body 25 and the measuring comparison cylinder 211 need to be dried to remove excess moisture and ensure the accuracy of the measurement data. That is, the servo motor 34 is started. The transmission end of the servo motor 34 drives the drive gear 35 to rotate. Since the drive gear 35 meshes with the driven gear 33, it also drives the rotating shaft 32 to rotate. This also causes the rotating plate 36, the L-shaped plate 37 and the horizontal plate 38 to move a certain distance. Due to the special parameters set by the servo motor 34, the drying port 310 is aligned with the top of the measuring instrument body 25 and the drying port 311 is aligned with the top area of ​​the measuring comparison cylinder 211. Then the operator starts the drying seat 39 again to dry the excess moisture inside the measuring instrument body 25 and the measuring comparison cylinder 211.

[0036] After drying, water needs to be injected into the measuring instrument body 25. After water injection, the water in the measuring instrument body 25 is poured into the measuring comparison cylinder 211. By comparing the standard value in the measuring comparison cylinder 211, the accuracy of the measuring instrument body 25 can be tested. The operator needs to start the servo motor 44. The transmission end of the servo motor 44 drives the drive gear 45 to rotate. Since the drive gear 45 meshes with the driven gear 43, it can simultaneously drive the rotating shaft 42 and the water outlet pipe 46 to rotate. Due to the special parameters set by the servo motor 44, the water outlet end of the water outlet pipe 46 can be aligned with the top opening of the measuring instrument body 25. Then, the operator connects the external water pipe to the water inlet pipe 47 to achieve the purpose of water input. Finally, the measuring instrument body 25 is successfully injected with water, and the data of the measuring instrument body 25 at this time is recorded.

[0037] After recording, the water in the measuring instrument body 25 needs to be poured into the measuring comparison cylinder 211 to compare with the standard value on the measuring comparison cylinder 211 to check the accuracy of the measuring instrument body 25. The operator starts the telescopic cylinder 29. The output end of the telescopic cylinder 29 pushes the carrier box 27. Due to the hinge setting, the telescopic cylinder 23 can be rotated at the same time through the driving plate 26, thereby rotating the measuring instrument body 25 by a certain angle and then rotating it above the measuring comparison cylinder 211. Since the measuring comparison cylinder 211 is equipped with a guide plate 214 at the top, it can prevent water from spilling out and ensure the accuracy of the measurement data. Then, by comparing the precise scale of the measuring comparison cylinder 211, it can be determined whether the accuracy of the measuring instrument body 25 meets the standard.

[0038] After the test is completed, the water in the measuring comparison cylinder 211 needs to be poured out, that is, by pulling the measuring comparison cylinder 211 out from the two connecting plates 210. Finally, the drying assembly 3 is activated to dry the moisture in the measuring instrument body 25 and the measuring comparison cylinder 211 to ensure that the next measurement is accurate.

[0039] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An apparatus for on-line detection of accuracy of a measuring instrument, comprising a base (1), characterised in that: An automatic dispensing component (2) is provided on the base (1), and a drying component (3) and a water injection component (4) are respectively provided on both sides of the automatic dispensing component (2) on the base (1).

2. The device according to claim 1, characterized in that: The automatic dispensing component (2) includes two rotating shaft seats (21) fixedly connected to the base (1). Rotating shafts (22) are rotatably mounted on the two rotating shaft seats (21). Telescopic cylinders (23) are provided on the two rotating shafts (22). Clamping plates (24) are provided at the output ends of the two telescopic cylinders (23). Driving plates (26) are fixedly connected to the bottom of the two telescopic cylinders (23). A bearing box (27) is connected to the end of the two driving plates (26) away from the telescopic cylinders (23). A measuring instrument body (25) is provided on the bearing box (27). A fixing plate (28) is provided on the base (1). A telescopic cylinder (29) is hinged on the fixing plate (28). The output end of the telescopic cylinder (29) is hinged to the bearing box (27). Two connecting plates (210) are provided on the side of the fixing plate (28) opposite to the telescopic cylinder (29). A measuring comparison cylinder (211) is slidably connected to the two connecting plates (210).

3. The device according to claim 2, characterized in that: The measuring comparison cylinder (211) is symmetrically provided with T-shaped guide rails (213), and the two connecting plates (210) are provided with T-shaped guide rail grooves (212) corresponding to the T-shaped guide rails (213). The T-shaped guide rails (213) move within the T-shaped guide rail grooves (212), and the top of the measuring comparison cylinder (211) is also provided with a flow guide plate (214).

4. The device according to claim 1, characterized in that: The drying assembly (3) includes a mounting base (31) fixedly connected to the base (1), a rotating shaft (32) rotatably mounted on the mounting base (31), a driven gear (33) provided on the rotating shaft (32), a servo motor (34) fixedly connected to the mounting base (31), a driving gear (35) provided at the transmission end of the servo motor (34), the driving gear (35) meshing with the driven gear (33), and a rotating plate (36) fixedly connected to the top of the rotating shaft (32). A drying seat (39) is provided on the rotating plate (36). An L-shaped plate (37) is provided at one end of the rotating plate (36) away from the drying seat (39). A horizontal plate (38) is provided on the L-shaped plate (37). A plurality of drying ports (310) are provided at the bottom of the rotating plate (36). The plurality of drying ports (310) are provided in correspondence with the measuring instrument body (25). A plurality of drying ports (311) are provided at the bottom of the horizontal plate (38). The plurality of drying ports (311) are provided in correspondence with the measuring comparison cylinder (211).

5. The device according to claim 4, characterized in that: The drying seat (39) is connected to a plurality of drying ports one (310) and a plurality of drying ports two (311).

6. The device according to claim 1, characterized in that: The water injection component (4) includes a mounting base two (41) fixedly connected to the base (1), a rotating shaft two (42) rotatably mounted on the mounting base two (41), a driven gear two (43) provided on the rotating shaft two (42), a servo motor two (44) fixedly connected to the mounting base two (41), a driving gear two (45) provided at the transmission end of the servo motor two (44), the driving gear two (45) meshing with the driven gear two (43), and an outlet pipe (46) and an inlet pipe (47) provided at the top of the rotating shaft two (42), the inlet pipe (47) being connected to the outlet pipe (46).

7. The device according to claim 1, characterized in that: A pull rod (5) is provided on one side of the two pivot seats (21) on the base (1).