A current and voltage detection tool with high safety

Abstract

The utility model relates to the technical field of current and voltage detection, and discloses a current and voltage detection tool with high safety, including a telescopic component: a compression spring, one end of which is fixedly connected to the inner wall of an outer shell, and the other end is fixedly connected to the bottom of a detection head; a through groove, which is opened at the top of the outer shell; a push rod, which is fixedly connected to the top of the detection head; a connecting rod, which is hinged to the bottom end of the detection head; a fixed block, which is arranged at the bottom of the connecting rod; the utility model has the advantage of retracting the detection head, and a staff member pushes the push rod to drive the detection head to extend out of the outer shell. During this process, the fixed block slides to the left in the slide groove to compress the spring 1, and when the fixed block slides to the left to the inside of the limit groove, the elastic force of the spring 1 completely pushes the fixed block into the inside of the limit groove for limiting, and the detection head cannot be retracted back into the inner shell. At this time, the detection head can be inserted into the battery interface to be detected to detect the current and voltage, which solves the problem that the detection head in the related technology is always exposed to the outside, which may affect the subsequent current and voltage detection accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of current and voltage detection, in particular to a current and voltage detection tool with high safety. Background Art

[0002] The stability of voltage and current is the premise of system stability. The purpose of detecting voltage and current is to judge the operating status of the system through the status of voltage and current, and take corresponding protection measures to ensure the safe and efficient operation of the system and the power supply itself. There are two commonly used detection methods. One is to use a dedicated digital power supply, which can monitor the output voltage and current, but when the power supply itself fails, it is not conducive to the power supply safety of the system; the second is to use a special voltage and current test instrument. The external structure of the existing detection device is not strong enough, and it is easy to be damaged when it falls during use, and improper use will cause leakage.

[0003] The existing patent CN210775789U according to the Chinese utility model disclosure specification discloses a current and voltage detection device for battery fault diagnosis, including a detection device body, a display screen is fixedly installed on the front of the detection device body, a gear plate is fixedly installed on the front of the detection device body and located on the right side of the display screen, a gear knob is movably installed on the front of the gear plate, an indicator light is fixedly installed on the front of the detection device body and located on the right side of the gear plate, and a wiring socket is fixedly installed on the front of the detection device body and located below the indicator light. The current and voltage detection device for battery fault diagnosis can be used for battery detection of different sizes and models by adjusting the distance between the first spring sheet and the second spring sheet, and then the detection pen is plugged into the wiring socket and different types of batteries are detected to achieve a diversified detection effect.

[0004] The detection head in the above-mentioned patent is exposed to the outside, and dust can easily contaminate the detection head, thereby affecting the accuracy of the subsequent current and voltage detection by the detection head. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a current and voltage detection tool with high safety, which has the advantage of retracting the detection head and solves the problem in the related art that the detection head is always exposed to the outside, which may affect the accuracy of subsequent current and voltage detection.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a current and voltage detection tool with high safety, comprising a main body component; the main body component comprises: a shell, a display screen is arranged on the top of which; a detection head is arranged inside the shell; a telescopic component is arranged on the shell and the detection head, and the telescopic component comprises: a compression spring, one end of which is fixedly connected to the inner wall of the shell, and the other end is fixedly connected to the bottom of the detection head; a through groove is opened at the top of the shell; a push rod is fixedly connected to the top of the detection head, and the push rod is slidably connected to the inside of the through groove; a connecting rod is hinged to the bottom end of the detection head; a fixed block is arranged at the bottom of the connecting rod; a spring one is fixedly connected between the detection head and the connecting rod; a slide groove is opened in the shell; a limiting groove is opened at the left end of the slide groove; a spring two is fixedly connected to the bottom of the shell; a pressure rod is fixedly connected to the bottom of the spring two, and the top end of the pressure rod passes through and extends to the inside of the limiting groove.

[0009] Preferably, a telescopic rod is fixedly connected between the inner wall of the shell and the detection head, and the compression spring is sleeved on the outside of the telescopic rod.

[0010] Preferably, the detection heads are symmetrically arranged in multiple locations, and the shapes of the detection heads are different.

[0011] Preferably, a limiting block is sleeved on the top of the push rod, the limiting block is located above the through slot, and the width of the limiting block is greater than the through slot.

[0012] Preferably, a fixing component is provided on the shell, and the fixing component includes: a fixing frame, which is provided on the front end of the shell and has an inner wall with a through hole for the detection head to move, and the inner wall of the fixing frame has an internal thread; a rotating frame, which is provided on the left end of the fixing frame, and the outer wall of the rotating frame has an external thread, and the fixing frame is threadedly connected to the rotating frame; a fixing ring, which is fixedly connected to the inner wall of the fixing frame; and a fixing plate, which is circumferentially provided on the left side wall of the fixing ring, and the rotating frame and the fixing plate have inclined surfaces.

[0013] Preferably, the outer portion of the shell is sleeved with an anti-slip sleeve.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a current and voltage detection tool with high safety, which has the following beneficial effects:

[0016] The utility model has the advantage of retracting the detection head. The staff pushes the push rod to slide to the left, and the push rod drives the detection head to extend out of the shell from the through hole at the left end of the shell. During this process, the fixed block slides to the left in the slide groove, and the fixed block pushes the connecting rod to compress the spring. When the fixed block slides to the left to the inside of the limit groove, the elastic force of the spring pushes the fixed block completely into the inside of the limit groove. The fixed block is limited by the limit groove, and the detection head cannot be retracted back into the shell. At this time, the detection head can be inserted into the battery interface to be detected to detect the current and voltage, which solves the problem in the related technology that the detection head is always exposed to the outside, which may affect the subsequent current and voltage detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point A in the utility model;

[0021] Figure 5 It is an enlarged structural diagram of point B in the utility model.

[0022] In the figure:

[0023] 1. Main assembly; 11. Housing; 12. Display screen; 13. Detection head; 14. Anti-slip cover;

[0024] 2. Telescopic assembly; 21. Compression spring; 211. Telescopic rod; 22. Through slot; 23. Push rod; 231. Limit block; 24. Connecting rod; 241. Spring 1; 25. Fixed block; 26. Slide slot; 261. Limit slot; 27. Spring 2; 271. Compression rod;

[0025] 3. Fixed assembly; 31. Fixed frame; 32. Rotating frame; 33. Fixed ring; 34. Fixed plate. 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] Embodiment 1

[0028] See also Figure 1-5 A high-safety current and voltage detection tool comprises a main body component 1; the main body component 1 comprises: a shell 11, a display screen 12 is arranged on the top of the shell 11; a detection head 13 is arranged inside the shell 11; a telescopic component 2 is arranged on the shell 11 and the detection head 13, and the telescopic component 2 comprises: a compression spring 21, one end of which is fixedly connected to the inner wall of the shell 11, and the other end is fixedly connected to the bottom of the detection head 13; a through groove 22 is opened at the top of the shell 11; a push rod 23 is fixedly connected to the top of the detection head 13, and the push rod 23 is slidably connected to the inside of the through slot 22; the connecting rod 24 is hinged to the bottom end of the detection head 13; the fixed block 25 is arranged at the bottom of the connecting rod 24; the spring 1 241 is fixedly connected between the detection head 13 and the connecting rod 24; the slide 26 is opened inside the shell 11; the limit groove 261 is opened at the left end of the slide 26; the spring 27 is fixedly connected to the bottom of the shell 11; the pressure rod 271 is fixedly connected to the bottom of the spring 27, and the top of the pressure rod 271 passes through and extends to the inside of the limit groove 261. A telescopic rod 211 is fixedly connected between the inner wall of the shell 11 and the detection head 13, and the pressure spring 21 is sleeved on the outside of the telescopic rod 211. The detection head 13 is symmetrically arranged in multiple places, and the shapes of the detection heads 13 are different.

[0029] When ready for use, place the device next to the battery to be tested, and use the telescopic component 2 to achieve the extension and retraction of the test head 13: the staff pushes the push rod 23 to slide to the left, and the push rod 23 drives the test head 13 to extend out of the shell 11 from the through hole at the left end of the shell 11. During this process, the fixed block 25 slides to the left in the slide groove 26, and the fixed block 25 pushes the connecting rod 24 to compress the spring 1 241. When the fixed block 25 slides to the left to the inside of the limiting groove 261, the elastic force of the spring 1 241 pushes the fixed block 25 completely into the inside of the limiting groove 261. The fixed block 25 is limited by the limiting groove 261, and the test head 13 cannot be retracted back into the shell 11. At this time, the test head 13 can be inserted into the battery interface to be tested to detect the current and voltage, and the display screen 12 displays the test data. After the test is completed, the staff first presses the pressure rod 271 toward the housing 11. The pressure rod 271 compresses the spring 27 and pushes the fixed block 25 in the limit groove 261 toward the outside of the limit groove 261. The fixed block 25 is driven by the stretched compression spring 21 to slide to the right. The fixed block 25 drives the detection head 13 to retract back into the housing 11 to prevent dust from adhering to the detection head 13 and affecting the accuracy of the test results. The detection head 13 is provided with multiple groups of different shapes, which is convenient for testing batteries with different shapes of interfaces and has strong practicality. The telescopic rod 211 is extended and retracted as the detection head 13 is extended and retracted, and the extension and retraction of the compression spring 21 are guided to prevent the compression spring 21 from being skewed when extending and retracting, which affects the normal extension of the detection head 13.

[0030] Embodiment 2

[0031] See also Figure 1-5 , based on the first embodiment, an auxiliary function is added;

[0032] The top of the push rod 23 is sleeved with a limit block 231, which is located above the through slot 22 and has a width greater than the through slot 22. The housing 11 is provided with a fixing assembly 3, which includes: a fixing frame 31, which is provided at the front end of the housing 11 and has an inner wall with a through hole for the detection head 13 to move, and the inner wall of the fixing frame 31 is provided with an internal thread; a rotating frame 32, which is provided at the left end of the fixing frame 31, and the outer wall of the rotating frame 32 is provided with an external thread, and the fixing frame 31 is threadedly connected with the rotating frame 32; a fixing ring 33, which is fixedly connected to the inner wall of the fixing frame 31; a fixing plate 34, which is circumferentially provided on the left side wall of the fixing ring 33, and the rotating frame 32 and the fixing plate 34 have inclined surfaces. The outer side of the housing 11 is sleeved with an anti-slip sleeve 14.

[0033] When in use, the limit block 231 restricts the push rod 23 to prevent the push rod 23 from shrinking back into the through slot 22, which would affect the normal use of the staff. The fixing assembly 3 fixes the head of the detection head 13 when the detection head 13 extends out of the housing 11: when the detection head 13 extends out of the housing 11, the staff rotates the rotating frame 32, and the external thread on the inner wall of the rotating frame 32 engages with the internal thread on the fixed frame 31, and the right end of the rotating frame 32 extends into the fixed frame 31. The inclined surface of the right end of the rotating frame 32 squeezes the inclined surface of the left end of the fixed plate 34, and the spacing between the fixed plates 34 becomes smaller. The inner wall of the fixed plate 34 gradually clings to the outer wall of the detection head 13, and the left end of the detection head 13 is fixed to prevent the left end of the detection head 13 from shaking, which would affect the normal use of the detection head 13. When the detection of the detection head 13 is completed, the rotating frame 32 is rotated in the opposite direction to achieve the fixed plate 34 away from the outer wall of the detection head 13, and the detection head 13 can be retracted normally at this time. The anti-slip cover 14 sleeved on the outer surface of the housing 11 increases the friction between the worker's hand and the housing 11, thereby increasing the stability of the worker when holding the housing 11 to detect current and voltage.

[0034] Although 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 current and voltage detection tool with high safety, comprising a main component (1); the main component (1) comprises: A housing (11) having a display screen (12) disposed on the top thereof; A detection head (13) is arranged inside the housing (11); The invention is characterized in that: a telescopic assembly (2) is arranged on the housing (11) and the detection head (13), and the telescopic assembly (2) comprises: A compression spring (21), one end of which is fixedly connected to the inner wall of the housing (11), and the other end of which is fixedly connected to the bottom of the detection head (13); A through groove (22) is provided on the top of the housing (11); A push rod (23) is fixedly connected to the top of the detection head (13), and the push rod (23) is slidably connected to the inside of the through groove (22); A connecting rod (24) is hinged to the bottom end of the detection head (13); A fixing block (25) is arranged at the bottom of the connecting rod (24); Spring 1 (241), fixedly connected between the detection head (13) and the connecting rod (24); A slide groove (26) is provided inside the housing (11); A limiting groove (261) is provided at the left end of the slide groove (26); Spring 2 (27), fixedly connected to the bottom of the housing (11); The pressure rod (271) is fixedly connected to the bottom of the second spring (27), and the top end of the pressure rod (271) passes through and extends into the interior of the limiting groove (261).

2. A current and voltage detection tool with high safety according to claim 1, characterized in that: A telescopic rod (211) is fixedly connected between the inner wall of the housing (11) and the detection head (13), and the compression spring (21) is sleeved outside the telescopic rod (211).

3. A current and voltage detection tool with high safety according to claim 2, characterized in that: The detection heads (13) are symmetrically arranged at multiple locations, and the detection heads (13) have different shapes.

4. A current and voltage detection tool with high safety according to claim 3, characterized in that: The top of the push rod (23) is sleeved with a limit block (231), the limit block (231) is located above the through slot (22), and the width of the limit block (231) is greater than that of the through slot (22).

5. A current and voltage detection tool with high safety according to claim 4, characterized in that: The housing (11) is provided with a fixing assembly (3), and the fixing assembly (3) comprises: A fixing frame (31) is arranged at the front end of the housing (11) and has an inner wall with a through hole for the detection head (13) to move, and an inner wall of the fixing frame (31) is provided with an internal thread; A rotating frame (32) is arranged at the left end of the fixed frame (31), an outer wall of the rotating frame (32) is provided with an external thread, and the fixed frame (31) is threadedly connected to the rotating frame (32); A fixing ring (33) fixedly connected to the inner wall of the fixing frame (31); A fixed plate (34) is circumferentially arranged on the left side wall of the fixed ring (33); and the rotating frame (32) and the fixed plate (34) have inclined surfaces.

6. A current and voltage detection tool with high safety according to claim 5, characterized in that: The outer portion of the housing (11) is sleeved with an anti-slip sleeve (14).

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