Electrician and electronic electricity measuring device with high safety performance

Abstract

The utility model relates to the technical field of electricity measuring tools, and provides an electrical and electronic electricity measuring device with high safety performance, which comprises a handle, a conducting hole is vertically arranged in the handle, a resistor is arranged in the conducting hole, a conducting rod is arranged at the bottom end of the resistor, a conducting tube is arranged at the bottom of the conducting rod, and the conducting tube is arranged in the conducting hole. The bottom of the conductive tube is provided with a test pen point, the top end of the resistor is provided with a protection assembly which can be disconnected when an instantaneous large current passes through the interior of the electricity testing device, the top end of the protection assembly is provided with an indicating lamp, and the top end of the handle is provided with a fixing assembly which can fix the protection assembly and facilitates replacement of the protection assembly. The fixing state between the conductive tube and the handle can be controlled through the adjusting assembly, the length of the test pencil point can be conveniently controlled, the length of the test pencil point can be conveniently adjusted according to the use environment, and the problem that the length of the test pencil point of an existing test pencil is inconvenient to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric measuring tools, in particular to an electrician and electronic electric measuring device with high safety performance. Background Art

[0002] Electrician and electronic test devices usually refer to test pens. Test pens are one of the common tools used by electricians to determine whether an object is charged. There is a neon bulb in the pen body. If the neon bulb glows during the test, it means that the wire is charged or is a live wire. The tip and tail of the test pen are made of metal materials, and the pen holder is made of insulating materials.

[0003] After searching, an electrical and electronic electrical testing device with a publication number of CN221100889U is found, which includes an electrical tester, and the electrical tester includes a handle, a tester head is provided at the end of the handle, and also includes an outer sleeve, the outer sleeve is snap-fitted to the outside of the tester head, a conductive plate and a battery are provided inside the outer sleeve, and a starting switch and a charging port are provided on the outer surface of the outer sleeve, the starting switch and the charging port are electrically connected to the battery respectively, and the battery is electrically connected to the conductive plate. In this utility model, on the one hand, power is provided for the electrical tester through the outer sleeve, battery and guide plate, and there is no need to find a known power source, so as to realize the detection of the electrical tester and avoid damage to the electrical tester, which leads to inaccuracies in the detection of charged bodies and causes danger.

[0004] However, the above-mentioned electrical and electronic measuring device still has the following problems: the electrical and electronic measuring device provides power to the tester to realize the detection of the tester and avoid damage to the tester, which leads to inaccuracy in the detection of charged objects and creates danger. However, when the electrical and electronic measuring device measures the current of the live parts deep in the gap, the length of the tester head cannot be extended, which makes it inconvenient for the tester to measure the current at the specified position. In addition, the electrical and electronic measuring device is inconvenient to disconnect the circuit when a large current passes through it, which causes damage to the entire tester, resulting in low safety performance. Utility Model Content

[0005] The utility model provides an electrical and electronic electricity testing device with high safety performance, which solves the problems in the prior art of being inconvenient to adjust the length of the test pencil head and being inconvenient to disconnect the circuit when a large current passes through the test pencil.

[0006] The technical solution of the present utility model is as follows: An electrical and electronic electrical measuring device with high safety performance, including a handle. A through hole is vertically arranged inside the handle. A resistor is arranged inside the through hole. A conductive rod is arranged at the bottom end of the resistor. A conductive tube is arranged at the bottom of the conductive rod. A measuring pen tip is arranged at the bottom of the conductive tube. A protection component capable of opening a circuit when passing through a transient large current is arranged at the top end of the resistor. An indicator light is arranged at the top end of the protection component. A fixing component capable of fixing the protection component and facilitating its replacement is arranged at the top end of the handle. A sliding hole is arranged at the bottom of one side of the handle. An adjusting component capable of controlling the elongation amount of the measuring pen tip is arranged inside the sliding hole. A lighting bead is arranged on one side of the conductive tube.

[0007] Preferably, the fixing component includes a threaded groove opened at the top of the handle and communicating with the inside of the through hole. A fixing block is threadedly connected to the top of the inner cavity of the threaded groove. A first spring is fixedly connected to the bottom end of the fixing block. The bottom end of the first spring is connected to the indicator light.

[0008] Preferably, the adjusting component includes a support sleeve fixedly connected to the top of one side of the conductive tube. An activity sleeve is slidably connected inside the support sleeve. Rack bars are fixedly connected to the front and rear inner walls of the sliding hole. The support sleeve is slidably connected between the two rack bars. Activity holes are opened on both sides of the support sleeve. Connecting rods are fixedly connected to both sides of the activity sleeve. One end of each connecting rod passes through the activity hole and is fixedly connected to a limit tooth plate. The limit tooth plates are meshed with the rack bars.

[0009] Preferably, a second spring is fixedly connected to the inner wall of the support sleeve. The other side of the second spring is fixedly connected to the middle of the inner wall of the activity sleeve.

[0010] Preferably, the protection component includes a fixing seat fixedly connected to the top end of the resistor. Conductive seats are fixedly connected to the upper and lower inner walls of the fixing seat. A fuse is fixedly connected inside the conductive seats together.

[0011] Preferably, the top end of the fixing seat is fixedly connected to the bottom of the indicator light. The conductive seats are electrically connected to the resistor and the indicator light respectively.

[0012] Preferably, an observation hole is opened on one side of the top of the handle. The observation hole corresponds to the indicator light.

[0013] Preferably, a limit block is slidably connected to the bottom of the inner cavity of the conductive tube. The bottom of the conductive rod is slidably connected inside the conductive tube and fixedly connected to the limit block.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the fixing state between the conductive tube and the handle can be controlled through the adjusting component, which is convenient for controlling the length of the electrical testing pen tip, and the length of the electrical testing pen tip can be adjusted according to the usage environment, solving the problem that the existing electrical testing pen is inconvenient to adjust the length of the electrical testing pen tip;

[0016] 2. In the present utility model, when a transient large current is introduced into the electrical testing pen, the entire circuit can be disconnected through the protection component, which can disconnect the circuit inside the entire electrical testing pen, prevent the large current from damaging the components inside the circuit, and the fixing state of the indicator light and the protection component can be released by adjusting the fixing component, and the protection component can be taken out for replacement, solving the problem that it is inconvenient to disconnect the circuit when a large current passes through the electrical testing pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 It is a schematic structural diagram of an electrical testing device with high safety performance proposed by the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the fixing component proposed by the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the adjusting component proposed by the present utility model;

[0021] Figure 4 Proposed by the present utility model Figure 2 The enlarged structural diagram of part A in

[0022] Figure 5 It is a schematic structural diagram of the protection component proposed by the present utility model;

[0023] In the figure: 1. Handle; 2. Conductive tube; 3. Electrical testing pen tip; 4. Slide hole; 5. Lighting lamp bead; 6. Fixing component; 61. Threaded groove; 62. Fixed block; 63. First spring; 7. Observation hole; 8. Adjusting component; 81. Support sleeve; 82. Movable sleeve; 83. Second spring; 84. Movable hole; 85. Connecting rod; 86. Limit tooth plate; 87. Rack; 9. Protection component; 91. Fixed seat; 92. Conductive seat; 93. Fuse; 10. Conductive rod; 11. Conductive through hole; 12. Indicator light; 13. Resistor; 14. Limit block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution for an electrician and electronic electric testing device with high safety performance: an electrician and electronic electric testing device with high safety performance, including a handle 1. A guide through hole 11 is vertically arranged inside the handle 1. A resistor 13 is arranged inside the guide through hole 11. A conductive rod 10 is arranged at the bottom of the resistor 13. A conductive tube 2 is arranged at the bottom of the conductive rod 10. A limiting block 14 is slidably connected to the bottom of the inner cavity of the conductive tube 2. The bottom of the conductive rod 10 is slidably connected inside the conductive tube 2 and fixedly connected to the limiting block 14. A testing pen tip 3 is arranged at the bottom of the conductive tube 2. A protection component 9 that can be opened when passing through a large instantaneous current inside the testing device is arranged at the top of the resistor 13. An indicator light 12 is arranged at the top of the protection component 9. A fixing component 6 that can fix the protection component 9 and facilitate its replacement is arranged at the top of the handle 1. A sliding hole 4 is arranged at the bottom of one side of the handle 1. An adjusting component 8 that can control the elongation amount of the testing pen tip 3 is arranged inside the sliding hole 4. A lighting bead 5 is arranged on one side of the conductive tube 2. An observation hole 7 is opened on one side of the top of the handle 1. The observation hole 7 corresponds to the indicator light 12.

[0026] Please refer to Figure 2 , the fixing component 6 includes a threaded groove 61 opened at the top of the handle 1 and communicating with the inside of the guide through hole 11. A fixing block 62 is threadedly connected to the top of the inner cavity of the threaded groove 61. A first spring 63 is fixedly connected to the bottom of the fixing block 62. The bottom of the first spring 63 is connected to the indicator light 12. By rotating the fixing block 62 in the reverse direction and taking it out from the inside of the threaded groove 61, the indicator light 12 and the fixing seat 91 are driven to be taken out from the inside of the guide through hole 11, which is convenient for replacing the used fuse 93 therein.

[0027] Please refer to Figure 3 and Figure 4, the adjusting component 8 includes a support sleeve 81 fixedly connected to the top of one side of the conductive tube 2. A movable sleeve 82 is slidably connected inside the support sleeve 81. Rack bars 87 are fixedly connected to the front and rear inner walls of the sliding hole 4. The support sleeve 81 is slidably connected between the two rack bars 87. Through holes 84 are formed on both sides of the support sleeve 81. Connecting rods 85 are fixedly connected to both sides of the movable sleeve 82. One end of each connecting rod 85 passes through the through hole 84 and is fixedly connected to a limit rack 86. The limit rack 86 is meshed with the rack bar 87. A second spring 83 is fixedly connected to the inner wall of the support sleeve 81. The other side of the second spring 83 is fixedly connected to the middle of the inner wall of the movable sleeve 82. By pressing the movable sleeve 82 to slide inside the support sleeve 81, the movable sleeve 82 drives the connecting rod 85 to slide inside the through hole 84, thereby driving the limit rack 86 to separate from the rack bar 87, and the fixation between the support sleeve 81 and the handle 1 can be released, so that the support sleeve 81 drives the conductive tube 2 to slide up and down, and thus the length of the electrical measurement pen tip 3 can be adjusted according to the usage requirements.

[0028] Please refer to Figure 5 , the protection component 9 includes a fixed seat 91 fixedly connected to the top of the resistor 13. Conductive seats 92 are fixedly connected to the upper and lower inner walls of the fixed seat 91. A fuse 93 is fixedly connected inside the conductive seats 92 together. The top of the fixed seat 91 is fixedly connected to the bottom of the indicator light 12. The conductive seats 92 are electrically connected to the resistor 13 and the indicator light 12 respectively. When a transient large current passes through the inside of this device, the fuse 93 is melted under the action of the transient large current, which can disconnect and protect the entire circuit and prevent the entire circuit from being damaged.

[0029] The working principle and usage process of the present utility model are as follows: The user holds the handle 1, presses the fixing block 62 at the top with the thumb, contacts the voltage detector tip 3 with the position to be measured, so that the position to be measured, the human body and the ground form a circuit. When the circuit is charged, the indicator lamp 12 in it emits light, otherwise the indicator lamp 12 does not emit light. When the voltage detector tip 3 cannot contact the position to be measured, by pressing the movable sleeve 82 to slide inside the support sleeve 81, the movable sleeve 82 drives the connecting rod 85 to slide inside the movable hole 84, thereby driving the limit tooth plate 86 to separate from the rack 87, and the fixation between the support sleeve 81 and the handle 1 can be released, so that the support sleeve 81 drives the conductive tube 2 to slide up and down, thereby being able to adjust the length of the voltage detector tip 3 and enabling the voltage detector tip 3 to contact the position to be measured. When a transient large current passes through the interior of this device, the fuse 93 is melted under the action of the transient large current, which can disconnect and protect the entire circuit to prevent the entire circuit from being damaged. Then, reverse-rotate the fixing block 62 and take it out from the interior of the threaded groove 61, thereby driving the indicator lamp 12 and the fixing seat 91 to be taken out from the interior of the through hole 11. Then, replace the fuse 93, reinstall the replaced fuse 93 and the indicator lamp 12 inside the through hole 11, and then rotate the fixing block 62 and install it inside the threaded groove 61, so that the first spring 63 fixes the indicator lamp 12.

[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electrical and electronic electro-detecting device with high safety performance, comprising a handle (1), characterized in that, Inside the handle (1), a guide through-hole (11) is vertically arranged. Inside the guide through-hole (11), a resistor (13) is arranged. At the bottom end of the resistor (13), a conductive rod (10) is arranged. At the bottom of the conductive rod (10), a conductive tube (2) is arranged. At the bottom of the conductive tube (2), a voltage detector tip (3) is arranged. At the top end of the resistor (13), a protection component (9) that can be opened when passing through a transient large current inside the voltage detecting device is arranged. At the top end of the protection component (9), an indicator light (12) is arranged. At the top end of the handle (1), a fixing component (6) that can fix the protection component (9) and facilitate its replacement is arranged. At the bottom of one side of the handle (1), a sliding hole (4) is arranged. Inside the sliding hole (4), an adjusting component (8) that can control the elongation of the voltage detector tip (3) is arranged. On one side of the conductive tube (2), a lighting bead (5) is arranged.

2. The electro - electronic electrical measuring device with high safety performance according to claim 1, wherein, The fixing component (6) includes a threaded groove (61) opened at the top of the handle (1) and communicating with the inside of the guide through-hole (11). At the top of the inner cavity of the threaded groove (61), a fixing block (62) is threadedly connected. At the bottom end of the fixing block (62), a first spring (63) is fixedly connected. The bottom end of the first spring (63) is connected to the indicator light (12).

3. A highly safe electrical and electronic voltage detector according to claim 1, characterized in that, The adjusting component (8) includes a support sleeve (81) fixedly connected to the top of one side of the conductive tube (2). Inside the support sleeve (81), a movable sleeve (82) is slidably connected. On the front and rear inner walls of the sliding hole (4), racks (87) are fixedly connected. The support sleeve (81) is slidably connected between the two racks (87). On both sides of the support sleeve (81), movable holes (84) are opened. On both sides of the movable sleeve (82), connecting rods (85) are fixedly connected. One end of each connecting rod (85) passes through the movable hole (84) and is fixedly connected to a limit tooth plate (86). The limit tooth plates (86) are meshed with the racks (87).

4. The electrical and electronic electroscope with high safety performance according to claim 3, characterized in that Inside the inner wall of the support sleeve (81), a second spring (83) is fixedly connected. The other side of the second spring (83) is fixedly connected to the middle of the inner wall of the movable sleeve (82).

5. A highly safe electrical and electronic voltage detector according to claim 1, wherein, The protection component (9) includes a fixing seat (91) fixedly connected to the top end of the resistor (13). On the upper and lower inner walls of the fixing seat (91), conductive seats (92) are fixedly connected. Inside the conductive seats (92), a fuse (93) is fixedly connected together.

6. The electrician and electronics voltage detector with high safety performance according to claim 5, characterized in that The top end of the fixing seat (91) is fixedly connected to the bottom of the indicator light (12). The conductive seats (92) are electrically connected to the resistor (13) and the indicator light (12) respectively.

7. An electrical and electronic electro-detecting device with high safety performance according to claim 1, characterized in that, On one side of the top of the handle (1), an observation hole (7) is opened. The observation hole (7) corresponds to the indicator light (12).

8. An electrical and electronic electro-detecting device with high safety performance according to claim 1, characterized in that, Inside the inner cavity of the conductive tube (2), a limit block (14) is slidably connected. The bottom of the conductive rod (10) is slidably connected inside the conductive tube (2) and is fixedly connected to the limit block (14).

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