A multimeter convenient for circuit board detection
By designing protective boxes, winding devices, fixing devices and support devices on the multimeter, the problems of easy damage and inconvenient detection of the multimeter connector are solved, and more efficient circuit board detection is achieved.
Patent Information
- Application Number
- CN202421111358.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing multimeter needs to be wired before use, but lacks the storage space for the connecting wire, which makes the connecting wire connector easy to be damaged. When detecting the circuit board, it is difficult for the multimeter to maintain a suitable angle, which affects the convenience of reading.
A multimeter is designed for easy circuit board detection, using a protective box and a winding device, providing a storage space for connecting wires, and through fixing devices and support devices, the multimeter can be used upright, easy to carry and protect.
This design solves the problem of easy damage to the multimeter connection wire connector, and improves the convenience and efficiency of circuit board detection through the stand-up design.
Smart Images
Figure CN222748633U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic measurement, in particular to a multimeter which is convenient for circuit board detection. Background Art
[0002] Multimeter, also known as multiplexer, multimeter, three-meter, complex meter, etc., is an indispensable measuring instrument in power electronics and other departments. It is generally used to measure voltage, current and resistance. Multimeters are divided into pointer multimeters and digital multimeters according to the display mode. It is a multifunctional and multi-range measuring instrument. Generally, multimeters can measure DC current, DC voltage, AC current, AC voltage, resistance and audio level, etc. Some can also measure AC current, capacitance, inductance and some parameters of semiconductors (such as β).
[0003] The existing multimeter needs to be connected before use, but the multimeter itself has no storage space for the connecting wires. Generally, when carrying the multimeter, the wires are wrapped around the multimeter and placed in a storage bag. However, the connectors of the connecting wires are prone to bumping or even damage. Moreover, when using the multimeter to detect the circuit board, two hands are often required to perform contact tests on different positions of the circuit board at the same time. However, at this time, the multimeter can only be placed flat on the ground or on a table, which makes reading inconvenient. Therefore, a multimeter that is convenient for circuit board detection is proposed to solve the above problems. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a multimeter that is convenient for circuit board detection. The utility model has the advantages of being able to carry and protect the multimeter and connecting wires and being able to stand the multimeter upright, thereby solving the problem that the existing multimeter needs to be wired before use, but the multimeter itself has no storage space for the connecting wires. Generally, when carrying the multimeter, the wires are wrapped around the multimeter and placed in a storage bag, but the connectors of the connecting wires are prone to bumping or even damage. Moreover, when using the multimeter to detect the circuit board, two hands are often required to perform contact tests on different positions of the circuit board at the same time, but at this time the multimeter can only be placed flat on the ground or on a table, resulting in inconvenience in reading.
[0006] (II) Technical solution
[0007] The utility model provides a technical solution to the above-mentioned technical problem as follows: a multimeter for facilitating circuit board detection, comprising a multimeter main body, a protective box rotatably connected to the outer side of the multimeter main body, a groove is provided inside the protective box, a fixing device is fixedly connected inside the groove, a clearance groove is provided inside the protective box, a fixing plate is fixedly connected inside the clearance groove, a retracting device is fixedly arranged on the outer side of the fixing plate, a first slide groove is provided inside the protective box, and a supporting device is slidably connected inside the first slide groove.
[0008] The beneficial effects of the utility model are:
[0009] The multimeter which is convenient for circuit board detection has the advantages of being able to carry and protect the multimeter and connecting wires and being able to stand the multimeter upright.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, the fixing device includes a spring fixedly connected to the inside of the groove, a baffle is fixedly connected to the top of the spring, a telescopic rod fixedly connected to the inside of the groove is fixedly connected to the bottom of the baffle, and the top surface height of the baffle is higher than the bottom surface height of the multimeter body.
[0012] The beneficial effect of adopting the above further solution is that the multimeter can be kept in an upright state at normal times to prevent it from turning over during transportation or bumps.
[0013] Furthermore, the retracting device includes a rotating shaft rotatably connected to the rear side of the fixed plate, a rotating disk is fixedly connected to the outer side of the rotating shaft, and a handle is fixedly connected to the outer side of the rotating disk.
[0014] The beneficial effect of adopting the above further solution is that the connecting wire of the multimeter can be rolled up, which is convenient for carrying and placing the connecting wire.
[0015] Furthermore, the protective box is provided with two slots which are symmetrically distributed on the left and right and open upward, and the protective box is provided with two L-shaped slots which are symmetrically distributed on the left and right and border on the giving way slot.
[0016] The beneficial effect of adopting the above further solution is that it provides placement space for the detection pen and the wiring head respectively, making it convenient to carry the accessories.
[0017] Furthermore, the supporting device comprises a sliding plate slidably connected to the inside of the first sliding groove, and a supporting block is fixedly connected to the rear side of the sliding plate.
[0018] The beneficial effect of adopting the above further solution is that the sliding plate can be made to slide, thereby providing a placement space for the sliding plate and facilitating the sliding plate to slide out of the supporting protection box.
[0019] Furthermore, second sliding grooves are provided on both the left and right sides of the first sliding groove, and sliding blocks are fixedly connected to the left and right sides of the sliding plate, respectively slidably connected to the two second sliding grooves, and the support blocks are arranged in a stepped manner.
[0020] The beneficial effect of adopting the above further solution is that it assists the movement of the sliding plate and prevents the sliding plate from being separated from the protective box, and the stepped support block is convenient for buckling out by hand. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the back structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the reeling device of the utility model;
[0024] Figure 4 This is a schematic diagram of the bottom structure of the protective box of the utility model.
[0025] In the figure: 1. multimeter body; 2. protection box; 3. fixing device; 31. spring; 32. baffle; 33. telescopic rod; 4. fixing plate; 5. retracting device; 51. rotating shaft; 52. turntable; 53. handle; 6. supporting device; 61. sliding plate; 62. supporting block; 7. sliding block. DETAILED DESCRIPTION
[0026] 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.
[0027] In the embodiment, Figure 1-4 A multimeter for circuit board detection is provided. The utility model comprises a multimeter body 1, a protective box 2 is rotatably connected to the outer side of the multimeter body 1, a groove is provided inside the protective box 2, a fixing device 3 is fixedly connected inside the groove, a make way groove is provided inside the protective box 2, a fixing plate 4 is fixedly connected inside the make way groove, a retracting device 5 is fixedly provided on the outer side of the fixing plate 4, a first slide groove is provided inside the protective box 2, a supporting device 6 is slidably connected inside the first slide groove.
[0028] Among them, the fixing device 3 includes a spring 31 fixedly connected to the inside of the groove, a baffle 32 is fixedly connected to the top of the spring 31, and a telescopic rod 33 fixedly connected to the inside of the groove is fixedly connected to the bottom of the baffle 32, and the top surface height of the baffle 32 is higher than the bottom surface height of the multimeter body 1.
[0029] Under normal circumstances, the multimeter body 1 will be blocked by the baffle 32 and cannot rotate. When the baffle 32 is pressed downward, the spring 31 will shrink downward, and the telescopic rod 33 will also shrink accordingly. The top surface of the baffle 32 is lower than the bottom surface of the multimeter body 1. At this time, the multimeter body 1 can rotate relative to the protective box 2 normally.
[0030] The retracting device 5 includes a rotating shaft 51 rotatably connected to the rear side of the fixed plate 4 , a rotating disk 52 is fixedly connected to the outer side of the rotating shaft 51 , and a handle 53 is fixedly connected to the outer side of the rotating disk 52 .
[0031] The connecting wire of the multimeter body 1 can be wound around the rotating shaft 51 , and the rotating shaft 51 is rotated by the handle 53 , and the connecting wire will be stored between the fixing plate 4 and the rotating disk 52 .
[0032] The protective box 2 is provided with two slots which are symmetrically distributed on the left and right and open upwards, and the protective box 2 is provided with two L-shaped slots which are symmetrically distributed on the left and right and border on the give-way slots.
[0033] The test pen can be stored through the slot, and the connector on the outside of the retracting device 5 can be stored through the L-shaped card slot, and the inside of the L-shaped card slot is recessed downward to prevent the connector from sliding off from the rear.
[0034] The supporting device 6 includes a sliding plate 61 slidably connected to the inside of the first sliding groove, and a supporting block 62 is fixedly connected to the rear side of the sliding plate 61 .
[0035] When the multimeter body 1 needs to be placed, the sliding plate 61 can be pulled out through the first sliding groove, and the multimeter body 1 and the protective box 2 can be rotated to an angle for placement.
[0036] The first slide groove is provided with a second slide groove on both sides, the sliding plate 61 is fixedly connected with a slider 7 slidably connected to the two second slide grooves on both sides, and the support block 62 is arranged in a stepped manner.
[0037] The slider 7 prevents the sliding plate 61 from being pulled out too long and falling, and the support block 62 can facilitate the pulling out of the sliding plate 61.
[0038] Working principle:
[0039] When the multimeter body 1 needs to be stored, the test pen can be placed in the slot, and then the connecting line can be wound around the reeling device 5, and the connector can be placed in the L-shaped slot. When the multimeter needs to be used, first pull out the sliding plate 61 through the support block 62, and then press the baffle 32 to make the multimeter body 1 and the protective box 2 rotate relative to each other, maintaining a suitable angle, and place the protective box 2 on the desktop. With the support of the sliding block in the protective box 2 and the multimeter body 1, it will remain in an upright state. Finally, take out the test pen and the connector, and turn out the connecting line for connection.
[0040] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multimeter for facilitating circuit board detection, comprising a multimeter body (1), characterized in that: The outer side of the multimeter body (1) is rotatably connected to a protective box (2), the interior of the protective box (2) is provided with a groove, the interior of the groove is fixedly connected to a fixing device (3), the interior of the protective box (2) is provided with a clearance groove, the interior of the clearance groove is fixedly connected to a fixing plate (4), the outer side of the fixing plate (4) is fixedly provided with a retracting device (5), the interior of the protective box (2) is provided with a first sliding groove, and the interior of the first sliding groove is slidably connected to a supporting device (6).
2. A multimeter for facilitating circuit board detection according to claim 1, characterized in that: The fixing device (3) comprises a spring (31) fixedly connected to the inside of the groove, a baffle (32) fixedly connected to the top of the spring (31), a telescopic rod (33) fixedly connected to the inside of the groove at the bottom of the baffle (32), and a top surface height of the baffle (32) is higher than a bottom surface height of the multimeter body (1).
3. A multimeter for facilitating circuit board detection according to claim 1, characterized in that: The retracting device (5) comprises a rotating shaft (51) rotatably connected to the rear side of the fixed plate (4), a rotating disk (52) is fixedly connected to the outer side of the rotating shaft (51), and a handle (53) is fixedly connected to the outer side of the rotating disk (52).
4. A multimeter for facilitating circuit board detection according to claim 1, characterized in that: The protection box (2) is provided with two slots which are symmetrically distributed on the left and right and open upwards, and the protection box (2) is provided with two L-shaped slots which are symmetrically distributed on the left and right and border on the clearance slots.
5. A multimeter for facilitating circuit board detection according to claim 1, characterized in that: The supporting device (6) comprises a sliding plate (61) slidably connected to the interior of the first sliding groove, and a supporting block (62) is fixedly connected to the rear side of the sliding plate (61).
6. A multimeter for facilitating circuit board detection according to claim 5, characterized in that: Second sliding grooves are provided on both sides of the first sliding groove, and sliding blocks (7) are fixedly connected to the left and right sides of the sliding plate (61) and are respectively slidably connected to the two second sliding grooves, and the support block (62) is arranged in a stepped manner.