Universal meter with dustproof structure
By designing a dust-proof structure on the multimeter and automatically cleaning dust and fixing instruments with motor drive, the problem of dust pollution when the multimeter is idle is solved, the convenience and stability of the equipment are improved, and the risks of maintenance and damage are reduced.
Patent Information
- Application Number
- CN202420876117.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Existing multimeters are susceptible to dust contamination when idle, resulting in frequent cleaning when used, reducing the convenience and reliability of the equipment.
A multimeter with a dust-proof structure is designed, using a protective case and a driving component to automatically clean the dust on the surface by driving the threaded rod and accommodating the long block through the motor, and automatically clean the dust on the surface with a strong spring and limiting plate and brush. And fix the instrument by accommodating columns and buffer plates to prevent falling.
Reduces internal cleaning and maintenance frequency when not in use, improves ease of use, and reduces the risk of instrument damage during movement, ensuring the stability and reliability of the equipment.
Smart Images
Figure CN222299694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of multimeters, in particular to a multimeter with a dustproof structure. Background Art
[0002] A multimeter, also known as an electric meter, ammeter, or volt-ohmmeter, is an instrument used to measure electrical quantities such as voltage, current, and resistance. The dustproof structure is designed to ensure that the multimeter can work stably and accurately under various environmental conditions to meet user needs and improve the reliability and life of the equipment.
[0003] In the prior art, some traditional multimeters are usually used to measure and process equipment. However, when they are not in use, the multimeters are stored. Most of the multimeters are placed in a tool box when they are stored. However, when other tools in the tool box are used, the tool box is opened for a long time for convenience in order to take out other tools. This will cause dust to fall into the tool box, which will cause the multimeter to be adhered to by these dust impurities, and the inside of the multimeter will be invaded by these impurities, so that the staff needs to manually maintain and clean the multimeter when using it, which reduces the convenience of using the multimeter and increases the frequency of maintenance. In view of the above shortcomings, a multimeter with a dustproof structure is proposed. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a multimeter with a dustproof structure, aiming to improve the prior art. When the multimeter is not in use, it will be stored. Most of the multimeters are placed in a tool box when they are stored. However, when other tools in the tool box are used, the tool box will be opened for a long time for convenience in order to take out other tools. This will cause dust to fall into the tool box, and then cause the multimeter to be adhered to by these dust impurities, and the inside of the multimeter will be invaded by these impurities, so that the staff needs to manually maintain and clean the multimeter when using it, which reduces the convenience of using the multimeter and increases the maintenance frequency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multimeter with a dustproof structure, comprising a protective shell, the top end of the protective shell is rotatably connected with an opening cover, the top end of the opening cover is provided with a special-shaped hole, the inside of the special-shaped hole is rotatably connected with a handle, the front and rear sides of the protective shell are provided with long holes, the right side of the inside of the rear long hole is fixedly connected with a driving assembly, the driving end of the driving assembly is fixedly connected with a threaded rod, the external thread of the threaded rod is connected with a long accommodating block, the interior of the long accommodating block is provided with a cavity 1, the interior of the cavity 1 is provided with a strong spring 1, the interior of the cavity 1 is slidably connected with a limiting plate, the bottom end of the limiting plate is fixedly connected with a cleaning block, the bottom end of the cleaning block is fixedly connected with a plurality of brushes, and the interior of the front long hole is fixedly connected with a fixing rod.
[0006] Furthermore, two accommodating columns are fixedly connected to the front and rear sides of the protective shell, a circular hole is opened inside the accommodating column, two strong springs are arranged inside the circular hole, a limiting ring is slidably connected inside the circular hole, and the adjacent ends of the plurality of limiting rings are fixedly connected to sliding columns, and the adjacent ends of the plurality of sliding columns are respectively fixedly connected to two buffer plates.
[0007] Furthermore, the driving assembly includes a motor, the right end of the motor is fixedly connected to the inner right end of the rear elongated hole, and the driving end of the motor is fixedly connected to the right end of the threaded rod.
[0008] Furthermore, the outside of the handle is movably connected to the inside of the special-shaped hole, and the front and rear ends of the outside of the accommodating long block are respectively slidably connected to the inside of the two long holes.
[0009] Furthermore, the outside of the cleaning block is slidably connected to the inner wall of the bottom end of the accommodating long block, and the inside of the front end of the accommodating long block is slidably connected to the outside of the fixing rod.
[0010] Furthermore, a loading frame is fixedly connected to the right side of the interior of the protective shell, and a storage frame is slidably connected to the interior of the loading frame.
[0011] Furthermore, one end of the multiple strong springs is fixedly connected to the inner top of the cavity, and the other end of the multiple strong springs is fixedly connected to the top of the limit plate.
[0012] Furthermore, the outside of the sliding column is slidably connected to an inner wall of one side of the accommodating column, and the adjacent ends of the four accommodating columns are respectively in contact with the distant sides of the two buffer plates.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, by accommodating the long block, the strong spring, the limit plate, the cleaning block, the brush, the fixing rod, the threaded rod and other structures, the surface of the multimeter is automatically cleaned, which can reduce the frequency of internal cleaning and maintenance when not in use, reduce the situation where users spend too much time on cleaning and maintenance when in use, improve the convenience of use, and reduce the need for manual cleaning by staff.
[0015] 2. In the utility model, by the mutual cooperation of the accommodating column, the second strong spring, the limiting ring, the sliding column, the buffer plate, the circular hole and other structures, the multimeter is fixed and buffered when it moves with the staff, ensuring that the instrument is firmly fixed in the selected position, reducing the risk of falling during the movement with the staff, which helps to prevent damage to the instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional diagram of a multimeter with a dustproof structure proposed by the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of a storage frame of a multimeter with a dustproof structure proposed by the utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of a fixed rod of a multimeter with a dustproof structure proposed by the utility model;
[0019] Figure 4 A schematic diagram of the internal structure of a multimeter with a dustproof structure for accommodating a long block proposed by the utility model;
[0020] Figure 5 A schematic diagram of the internal structure of a protective shell of a multimeter with a dustproof structure proposed by the utility model;
[0021] Figure 6 The utility model is a schematic diagram of the internal structure of a receiving column of a multimeter with a dustproof structure.
[0022] Legend:
[0023] 1. Protective shell; 2. Open cover; 3. Special-shaped hole; 4. Handle; 5. Long hole; 6. Motor; 7. Threaded rod; 8. Accommodate long block; 9. Cavity one; 10. Strong spring one; 11. Limit plate; 12. Cleaning block; 13. Brush; 14. Fixed rod; 15. Loading frame; 16. Storage frame; 17. Accommodate column; 18. Round hole; 19. Strong spring two; 20. Limit ring; 21. Sliding column; 22. Buffer plate. DETAILED DESCRIPTION
[0024] 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.
[0025] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of the utility model is as follows: a multimeter with a dustproof structure comprises a protective shell 1, which is an additional shell of the multimeter and is used to protect the instrument from external dirt and dust. The top of the protective shell 1 is rotatably connected with an opening cover 2, which can be opened to access the multimeter. A special-shaped hole 3 is provided inside the top of the opening cover 2, and a handle 4 is rotatably connected inside the special-shaped hole 3. The handle 4 enables the user to easily access the instrument. The outside of the handle 4 is movably connected to the inside of the special-shaped hole 3. Long holes 5 are provided inside the front and back sides of the protective shell 1. These holes are used to install a motor 6 and support the movement of a long block 8. A driving assembly is fixedly connected to the right side of the rear long hole 5. The driving assembly comprises a motor 6. The motor 6 is used to provide a power source. The right end of the motor 6 is fixedly connected to the right end of the rear long hole 5. The driving end of the motor 6 is fixedly connected to the right end of a threaded rod 7. The threaded rod 7 is used to transmit the movement of the motor 6. The driving end of the driving assembly is fixedly connected with a threaded rod 7, and the external thread of the threaded rod 7 is connected with a long block 8 for the movement of the subsequent cleaning block 12. The front and rear ends of the outside of the long block 8 are respectively slidably connected to the inside of the two long holes 5. A cavity 9 is provided inside the long block 8, and a strong spring 10 is provided inside the cavity 9 to provide a restoring force or pressure. One end of a plurality of strong springs 10 is fixedly connected to the internal top of the cavity 9, and the other end of a plurality of strong springs 10 is fixedly connected to the top of a limit plate 11. The interior of the cavity 9 is slidably connected to the limit plate 11, and the limit plate 11 is used to limit the movement of the subsequent cleaning block 12. The bottom end of the limit plate 11 is fixedly connected with a cleaning block 12 for cleaning the surface of the multimeter. The outside of the cleaning block 12 is slidably connected to the inner wall of the bottom end of the long block 8, and the bottom end of the cleaning block 12 is fixedly connected with a plurality of brushes 13, which are used to remove dirt and dust.
[0026] Reference Figure 3 , Figure 5 and Figure 6The front long hole 5 is fixedly connected to a fixing rod 14 for assisting the movement of the long block 8. The front end of the long block 8 is slidably connected to the outside of the fixing rod 14. The right side of the inside of the protective shell 1 is fixedly connected to a loading frame 15. The loading frame 15 is used to carry a subsequent storage frame 16. The inside of the loading frame 15 is slidably connected to a storage frame 16. The storage frame 16 is used to store the cleaned dust and impurities to provide subsequent cleaning convenience. The front and rear sides of the protective shell 1 are fixedly connected to two accommodating columns 17. The interior of the accommodating column 17 is provided with a circular hole 18. The circular hole 1 8 is used for the movement of the strong spring 219. The inside of the circular hole 18 is provided with a strong spring 219. The inside of the circular hole 18 is slidably connected with a limit ring 20. The limit ring 20 is used to limit the subsequent sliding column 21. The adjacent ends of the plurality of limit rings 20 are fixedly connected with the sliding column 21. The outer side of the sliding column 21 is slidably connected to the inner wall of one side of the accommodating column 17. The adjacent ends of the plurality of sliding columns 21 are respectively fixedly connected with two buffer plates 22 for providing additional stability and shock absorption effect. The adjacent ends of the four accommodating columns 17 are respectively in contact with the distant sides of the two buffer plates 22.
[0027] Working principle: first start the motor 6, and the movement of the motor 6 drives the threaded rod 7 to move, and then the movement of the threaded rod 7 drives the accommodating long block 8 to move outside the fixed rod 14, and then the movement of the accommodating long block 8 drives the cleaning block 12 to move, and the movement of the cleaning block 12 drives the brush 13 to move, and then the brush 13 and the cleaning block 12 will contact the multimeter body under the movement, so that the cleaning block 12 is stressed, and the limit plate 11 moves under the force of the cleaning block 12, and then the strong spring 10 is stressed under the movement of the limit plate 11, and then the rebound force will be generated under the force of the strong spring 10 to offset the force, so as to realize the multimeter surface. The surface is cleaned, and then the cleaned dust is swept into the inside of the storage frame 16, and then the two handrails on the top of the storage frame 16 are pulled to remove the storage frame 16 from the inside of the loading frame 15, and the dust inside the storage frame 16 is poured out, and then when the protective shell 1 is moved, the inside will shake, and then the multimeter will shake, and then the buffer plate 22 will be subjected to force, and the sliding column 21 will be subjected to force under the force of the buffer plate 22, and the limit ring 20 will move inside the circular hole 18 under the force of the sliding column 21, and then the strong spring 19 will be subjected to force, and the strong spring 19 will generate a rebound force under the force to offset the force received, thereby achieving buffering and fixation of the multimeter.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multimeter with a dustproof structure, comprising a protective shell (1), characterized in that: The top of the protective shell (1) is rotatably connected to an opening cover (2), a special-shaped hole (3) is provided inside the top of the opening cover (2), a handle (4) is rotatably connected inside the special-shaped hole (3), long holes (5) are provided inside the front and rear sides of the protective shell (1), a driving assembly is fixedly connected to the right side of the rear long hole (5), a threaded rod (7) is fixedly connected to the driving end of the driving assembly, the threaded rod (7) is threadedly connected to the outside of the long block (8), a cavity (9) is provided inside the long block (8), a strong spring (10) is provided inside the cavity (9), a limiting plate (11) is slidably connected inside the cavity (9), a cleaning block (12) is fixedly connected to the bottom end of the limiting plate (11), a plurality of brushes (13) are fixedly connected to the bottom end of the cleaning block (12), and a fixing rod (14) is fixedly connected to the inside of the long hole (5) on the front side.
2. A multimeter with a dustproof structure according to claim 1, characterized in that: Two accommodating columns (17) are fixedly connected to the front and rear sides of the protective shell (1), a circular hole (18) is opened inside the accommodating column (17), a strong spring (19) is arranged inside the circular hole (18), a limiting ring (20) is slidably connected inside the circular hole (18), a plurality of the limiting rings (20) are fixedly connected to the adjacent ends thereof with sliding columns (21), and a plurality of the sliding columns (21) are fixedly connected to the adjacent ends thereof with two buffer plates (22).
3. A multimeter with a dustproof structure according to claim 1, characterized in that: The driving assembly comprises a motor (6), the right end of the motor (6) is fixedly connected to the inner right end of the rear elongated hole (5), and the driving end of the motor (6) is fixedly connected to the right end of the threaded rod (7).
4. A multimeter with a dustproof structure according to claim 1, characterized in that: The outside of the handle (4) is movably connected to the inside of the special-shaped hole (3), and the front and rear ends of the outside of the accommodating long block (8) are slidably connected to the inside of the two long holes (5) respectively.
5. The multimeter with a dustproof structure according to claim 1, characterized in that: The outside of the cleaning block (12) is slidably connected to the inner wall of the bottom end of the accommodating long block (8), and the inside of the front end of the accommodating long block (8) is slidably connected to the outside of the fixing rod (14).
6. A multimeter with a dustproof structure according to claim 1, characterized in that: The right side of the interior of the protective shell (1) is fixedly connected to a loading frame (15), and the interior of the loading frame (15) is slidably connected to a storage frame (16).
7. The multimeter with a dustproof structure according to claim 1, characterized in that: One end of the multiple strong springs (10) is fixedly connected to the internal top of the cavity (9), and the other end of the multiple strong springs (10) is fixedly connected to the top of the limit plate (11).
8. The multimeter with a dustproof structure according to claim 2, characterized in that: The outside of the sliding column (21) is slidably connected to the inner wall of one side of the accommodating column (17), and the proximal ends of the four accommodating columns (17) are in contact with the distal sides of the two buffer plates (22) respectively.