Detection pen with protection function for electrical safety detection

Abstract

The utility model relates to the technical field of electrical safety detection, in particular to a detection pen with a protection function for electrical safety detection, which comprises a shell, a protection shell is arranged at the upper end of the shell, a metal piece is arranged at the upper end of the protection shell, a metal pen point is arranged at the bottom of the shell, and an adjusting assembly is arranged on the surface of the shell. A lighting assembly is arranged at the lower end of the shell. Through the adjusting assembly, after the upper end part of the pressing plate is pressed and the rotating shaft is rotated, the limiting block is separated from the positioning hole, the movable ring can drive the connecting rod to ascend or descend in the sliding groove through the sliding block, the extension spring is pulled in the moving process of the connecting rod, and the extension spring has conductivity; the position of the metal pen point and the length of the connecting rod can be adjusted, so that the detection pen can adapt to various different environments, and the hand of a worker can conveniently make contact with a metal piece on the protective shell, so that the device can detect a detected object as well.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical safety detection, in particular to a detection pen for electrical safety detection with a protective function. Background Art

[0002] The test pen is also called an electrician's pen, or "electric pen" for short. It is an electrical tool used to test whether the wire 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 material. When using the test pen, be sure to touch the metal part at the end of the test pen with your hand. Otherwise, because the charged body, the test pen, the human body and the ground do not form a circuit, the neon bulb in the test pen will not glow, causing a misjudgment that the charged body is not charged.

[0003] After searching, the patent application number is (202220761243.7), which discloses "a safe working current detection pen", which solves the problem that the traditional current detection pen does not have the function of anti-fall and cannot play the role of lighting;

[0004] However, the above device has the following problems:

[0005] (1) When the height or depth of the object to be inspected cannot be reached by the length of the existing electric pen, the staff needs to find an electric pen of suitable length for measurement, which not only wastes time but also reduces the efficiency of the inspection of the object;

[0006] (2) General lighting lamps use a fixed connection method. When there are obstacles blocking them, they cannot provide lighting. This makes it easy for users to make mistakes and poses a safety hazard. To this end, we have proposed an electrical safety detection pen with a protective function to solve the above problem. Utility Model Content

[0007] The purpose of the utility model is to provide an electrical safety detection test pen with a protective function, so as to solve the problem that the length of the electric pen proposed in the above-mentioned background technology cannot be adjusted and cannot provide lighting when encountering obstacles, which makes it easy for users to make mistakes and there are potential safety hazards in use.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical safety detection detection pen with a protective function, comprising a shell, a protective shell is arranged at the upper end of the shell, a metal piece is arranged at the upper end of the protective shell, a metal pen tip is arranged at the bottom of the shell, an adjustment component is arranged on the surface of the shell, and a lighting component is arranged at the lower end of the shell;

[0009] The adjustment assembly includes a movable ring, a rotating shaft, a pressing plate, a limit block, a positioning hole, a connecting rod, a tension spring and a slide groove. The surface of the shell is provided with a movable ring, the front and rear sides of the shell are provided with slide grooves, the left and right sides of the shell are provided with positioning holes, the movable ring is provided with a rotating shaft, the surface of the rotating shaft is provided with a pressing plate, the inner side of the pressing plate is provided with a limit block, the inner side of the movable ring is provided with a connecting rod, and the upper side of the connecting rod is provided with a tension spring.

[0010] Preferably, the lighting assembly includes a connecting block, an adjusting wheel and an LED lamp. The outer side of the outer shell is fixedly connected to the connecting block, two groups of telescopic blocks are movably connected inside the connecting block, an adjusting wheel is rotatably connected between the two groups of telescopic blocks, and anti-slip grooves are provided on the surface, and the lower end of the adjusting wheel is fixedly connected to the LED lamp.

[0011] Preferably, the movable ring is rotatably connected with two groups of rotating shafts on the left and right sides, and a pressing plate is fixedly connected to the surface of the rotating shaft, and a limiting block is fixedly connected to the opposite side of the two groups of pressing plates. Four groups of positioning holes are equidistantly provided on the left and right sides of the outer shell, and a slider is movably connected inside the connecting rod, and the two ends of the slider are respectively connected to the movable ring and the connecting rod, and a tension spring is provided at the upper end of the connecting rod, and the two ends of the tension spring are respectively connected to the connecting rod and the inner wall of the outer shell, and a limiting assembly is provided on the inner side of the movable ring.

[0012] Preferably, the limiting assembly includes a fixing groove, a limiting ring, a buckle and a pressure spring. A fixing groove is opened on the inner side of the movable ring. The limiting ring is movably connected in the fixing groove. The outer side of the limiting ring is fixedly connected with a buckle, and the buckle is hemispherical. A pressure spring is arranged in the fixing groove, and the two ends of the pressure spring are respectively against the fixing groove and the limiting ring.

[0013] Preferably, a battery is fixedly installed in the housing, and an audible and visual alarm is fixedly installed on the upper end of the battery.

[0014] Preferably, the pressing plate is Z-shaped and is provided with a rubber pad on the outside, the diameter of the limiting block is matched with the positioning hole, and the diameter of the sliding block is matched with the sliding groove.

[0015] Preferably, a protective shell is threadedly connected to the upper end of the shell, a rubber pad is provided on the surface of the protective shell, and an anti-slip pattern with a depth of two millimeters is provided on the surface of the rubber pad.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model uses an adjustment component. When the position of the metal pen tip needs to be changed to facilitate work, the upper end of the pressing plate can be manually pressed. After the rotating shaft rotates, the limit block is disengaged from the positioning hole, and the movable ring can drive the connecting rod to rise or fall in the slide groove through the slider. During the movement of the connecting rod, the stretch spring is pulled. The stretch spring is conductive and is used to connect the two metal ends between the electric pens. The position of the metal pen tip and the length of the connecting rod can be adjusted, so that the detection pen can adapt to a variety of different environments, which is convenient for the staff to contact the metal parts on the protective shell with their hands, and also enables the device to detect the detection object;

[0018] 2. The utility model uses a lighting component to pull the adjusting wheel through the telescopic block, and rotates the adjusting wheel according to the specific situation to adjust the LED light to a suitable distance and angle. It plays a lighting role when the external lighting conditions are not ideal, and it is convenient for users to quickly and accurately find the external objects to be detected, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the adjustment component of the utility model;

[0022] Figure 3 It is a schematic side view of the structure of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the limit assembly of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the lighting assembly of the utility model;

[0025] Figure 6 For this utility model Figure 1 Structural cross-section of the middle shell.

[0026] In the figure: 1. outer shell; 2. protective shell; 3. metal parts; 4. adjustment component; 401. movable ring; 402. rotating shaft; 403. pressing plate; 404. limit block; 405. positioning hole; 406. connecting rod; 407. tension spring; 408. slide groove; 5. limit component; 501. fixing groove; 502. limit ring; 503. buckle; 504. pressure spring; 6. lighting component; 601. connecting block; 602. adjusting wheel; 603. LED light; 7. metal pen tip; 8. battery; 9. sound and light alarm. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-6 The utility model provides an embodiment: an electrical safety detection pen with a protective function, comprising a shell 1, a protective shell 2 is arranged at the upper end of the shell 1, a metal part 3 is arranged at the upper end of the protective shell 2, a metal pen tip 7 is arranged at the bottom of the shell 1, an adjustment component 4 is arranged on the surface of the shell 1, and a lighting component 6 is arranged at the lower end of the shell 1;

[0029] The adjustment component 4 includes a movable ring 401, a rotating shaft 402, a pressing plate 403, a limiting block 404, a positioning hole 405, a connecting rod 406, a tension spring 407 and a slide groove 408. The surface of the housing 1 is provided with a movable ring 401, the front and rear sides of the housing 1 are provided with slide grooves 408, the left and right sides of the housing 1 are provided with positioning holes 405, the rotating shaft 402 is provided inside the movable ring 401, the surface of the rotating shaft 402 is provided with a pressing plate 403, the inner side of the pressing plate 403 is provided with a limiting block 404, the inner side of the movable ring 401 is provided with a connecting rod 406, and the upper side of the connecting rod 406 is provided with a tension spring 407;

[0030] The device solves the problem that the length of the electric pen cannot be adjusted and the lighting function cannot be performed when there is an obstacle blocking it, which makes it easy for users to make mistakes and poses a safety hazard.

[0031] Furthermore, the lighting assembly 6 includes a connection block 601, an adjustment wheel 602 and an LED lamp 603. The connection block 601 is fixedly connected to the outer side of the housing 1. Two sets of telescopic blocks are movably connected inside the connection block 601. The adjustment wheel 602 is rotatably connected between the two sets of telescopic blocks, and the surface is provided with anti-slip grooves. The lower end of the adjustment wheel 602 is fixedly connected to the LED lamp 603. Figure 5 As shown, the structure is used to pull the adjusting wheel 602 through the telescopic block, and rotate the adjusting wheel 602 according to the specific situation to adjust the LED light 603 to a suitable distance and angle, so as to play a lighting role when the external lighting conditions are not ideal, so as to facilitate the user to quickly and accurately find the external object to be detected.

[0032] Furthermore, two groups of rotating shafts 402 are rotatably connected on the left and right sides of the movable ring 401, and a pressing plate 403 is fixedly connected to the surface of the rotating shaft 402. The two groups of pressing plates 403 are fixedly connected to the opposite sides of the limited block 404. Four groups of positioning holes 405 are equidistantly provided on the left and right sides of the shell 1. A slider is movably connected inside the connecting rod 406. The two ends of the slider are respectively connected to the movable ring 401 and the connecting rod 406. A tension spring 407 is provided at the upper end of the connecting rod 406. The two ends of the tension spring 407 are respectively connected to the connecting rod 406 and the inner wall of the shell 1. Four groups of limit components 5 are provided inside the movable ring 401. Figure 2 As shown, the structure is used to manually press the upper end portion of the pressing plate 403, and after the rotating shaft 402 rotates, the limit block 404 disengages from the positioning hole 405, so that the movable ring 401 can drive the connecting rod 406 to rise or fall in the slide groove 408 through the slider, and the tension spring 407 is pulled during the movement of the connecting rod 406. The tension spring 407 is conductive and is used to connect the two metal ends between the electric pens, so that the position of the metal pen tip 7 and the length of the connecting rod 406 can be adjusted, so that the detection pen can adapt to a variety of different environments, which is convenient for the staff to contact the metal part 3 on the protective shell 2 with their hands. At the same time, the device can detect the detection object. When returning to the original position, the pressing plate 403 is pressed to disengage the limit block 404 from the positioning hole 405, and the movable ring 401 is restored to its original position under the elastic action of the tension spring 407.

[0033] Furthermore, the limiting assembly 5 includes a fixing groove 501, a limiting ring 502, a buckle 503 and a pressure spring 504. The fixing groove 501 is provided on the inner side of the movable ring 401. The limiting ring 502 is movably connected in the fixing groove 501. The buckle 503 is fixedly connected to the outer side of the limiting ring 502. The buckle 503 is hemispherical. The pressure spring 504 is provided in the fixing groove 501. The two ends of the pressure spring 504 are respectively against the fixing groove 501 and the limiting ring 502. Figure 4As shown, the structure is used to push the buckles 503 on both sides by pressing the pressing plate 403, causing the pressure spring 504 to deform. When the limit block 404 is inserted into the positioning hole 405, the limit ring 502 and the buckle 503 are pushed outward under the rebound action of the pressure spring 504, thereby limiting the lower end of the pressing plate 403.

[0034] Furthermore, a battery 8 is fixedly installed in the housing 1, and an audible and visual alarm 9 is fixedly installed on the upper end of the battery 8. Figure 6 As shown, the structure is used to detect current or voltage through the sound and light alarm 9, and the sound and light alarm 9 flashes and emits an alarm sound to remind the user and facilitate the user's use.

[0035] Furthermore, the pressing plate 403 is Z-shaped and has a rubber pad on the outside, the diameter of the limit block 404 is matched with the positioning hole 405, and the diameter of the slider is matched with the slide groove 408. Figure 2 As shown, the structure is used to facilitate the user to press by making the pressing plate 403 Z-shaped and provided with a rubber pad on the surface, and through the positioning holes 405 and the positioning holes 405, the movable ring 401 can slide up and down stably on the surface of the shell 1 and be fixed.

[0036] Furthermore, the upper end of the housing 1 is threadedly connected to a protective housing 2, the surface of the protective housing 2 is provided with a rubber pad, and the surface of the rubber pad is provided with anti-slip grooves with a depth of two millimeters. Figure 1 As shown, the structure is used to be threadedly connected to the outer shell 1 through the protective shell 2, which is convenient for disassembly and assembly, and convenient for internal inspection or replacement. The rubber has cushioning and anti-skid properties, and its anti-skid pattern can enhance its anti-skid effect. The depth of two millimeters can be used to ensure that after a certain degree of wear, the anti-skid pattern still has an anti-skid effect, thereby providing a certain degree of protection for the device as a whole.

[0037] Working principle: When used, Figure 1 and Figure 6 As shown, first the user rotates the protective shell 2, then installs the battery 8 into the shell 1, and then rotates the protective shell 2 in the opposite direction to connect it to the shell 1. At this time, the installation of the electric pen is completed, and then the user holds the protective shell 2 and presses the metal part 3 with his fingers. Then the user can hold the protective shell 2 to detect the object to be detected. When the electric metal pen tip 7 detects current or voltage, the sound and light alarm 9 lights up and flashes, and emits an alarm sound to remind the user that the detected object is charged and reminds the user to pay attention to safety. When the external lighting conditions are not ideal, such as Figure 5As shown, the adjusting wheel 602 is pulled by the telescopic block, and the adjusting wheel 602 is rotated according to the specific situation to adjust the LED light 603 to a suitable distance and angle, so as to play a lighting role when the external lighting conditions are not ideal. When the distance between the detected object and the metal pen tip 7 is too large, the upper end of the pressing plate 403 is manually pressed, and after the rotating shaft 402 rotates, the limit block 404 is disengaged from the positioning hole 405. The pressing plate 403 is pressed while the buckles 503 on both sides are pushed to deform the pressure spring 504, so that the movable ring 401 can pass The slider drives the connecting rod 406 to rise or fall in the slide groove 408. During the movement of the connecting rod 406, the tension spring 407 is pulled. The tension spring 407 is conductive and is used to connect the two metal ends of the electric pen, so as to adjust the position of the metal pen tip 7 and the length of the connecting rod 406. When the movable ring 401 is adjusted to a suitable position, the limit block 404 is inserted into the positioning hole 405, and the limit ring 502 and the buckle 503 are pushed outward under the rebound action of the pressure spring 504 to limit the lower end of the pressing plate 403. The above is the entire working principle of the utility model.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A testing pen for electrical safety testing with a protective function, comprising a housing (1), characterized in that: The upper end of the housing (1) is provided with a protective housing (2), the upper end of the protective housing (2) is provided with a metal part (3), the bottom of the housing (1) is provided with a metal pen tip (7), the surface of the housing (1) is provided with an adjustment component (4), and the lower end of the housing (1) is provided with a lighting component (6); The adjustment component (4) comprises a movable ring (401), a rotating shaft (402), a pressing plate (403), a limiting block (404), a positioning hole (405), a connecting rod (406), a tension spring (407) and a sliding groove (408); the surface of the housing (1) is provided with a movable ring (401); the front and rear sides of the housing (1) are provided with sliding grooves (408); the left and right sides of the housing (1) are provided with positioning holes (405); the interior of the movable ring (401) is provided with a rotating shaft (402); the surface of the rotating shaft (402) is provided with a pressing plate (403); the inner side of the pressing plate (403) is provided with a limiting block (404); the inner side of the movable ring (401) is provided with a connecting rod (406); and the upper side of the connecting rod (406) is provided with a tension spring (407).

2. The electrical safety detection pen with protective function according to claim 1, characterized in that: The lighting assembly (6) comprises a connecting block (601), an adjusting wheel (602) and an LED lamp (603); the outer side of the housing (1) is fixedly connected to the connecting block (601); two groups of telescopic blocks are movably connected inside the connecting block (601); an adjusting wheel (602) is rotatably connected between the two groups of telescopic blocks and has anti-slip grooves on its surface; and the lower end of the adjusting wheel (602) is fixedly connected to the LED lamp (603).

3. The electrical safety detection pen with protective function according to claim 1, characterized in that: The movable ring (401) is rotatably connected to two groups of rotating shafts (402) on the left and right sides, and a pressing plate (403) is fixedly connected to the surface of the rotating shaft (402). The two groups of pressing plates (403) are fixedly connected to the opposite sides of the limited block (404). The left and right sides of the shell (1) are respectively provided with four groups of positioning holes (405) at equal distances. A slider is movably connected inside the connecting rod (406), and the two ends of the slider are respectively connected to the movable ring (401) and the connecting rod (406). A tension spring (407) is provided at the upper end of the connecting rod (406), and the two ends of the tension spring (407) are respectively connected to the connecting rod (406) and the inner wall of the shell (1). A limited position component (5) is provided inside the movable ring (401).

4. The electrical safety detection detection pen with protective function according to claim 3, characterized in that: The limiting assembly (5) comprises a fixing groove (501), a limiting ring (502), a buckle (503) and a pressure spring (504); a fixing groove (501) is provided on the inner side of the movable ring (401); a limiting ring (502) is movably connected inside the fixing groove (501); a buckle (503) is fixedly connected to the outer side of the limiting ring (502); the buckle (503) is hemispherical; a pressure spring (504) is provided in the fixing groove (501); two ends of the pressure spring (504) are respectively against the fixing groove (501) and the limiting ring (502).

5. The electrical safety detection detection pen with protective function according to claim 1, characterized in that: A battery (8) is fixedly mounted in the housing (1), and an audible and visual alarm (9) is fixedly mounted on the upper end of the battery (8).

6. The electrical safety detection detection pen with protective function according to claim 3, characterized in that: The pressing plate (403) is Z-shaped and is provided with a rubber pad on the outside. The diameter of the limiting block (404) is matched with the positioning hole (405), and the diameter of the sliding block is matched with the sliding groove (408).

7. The electrical safety detection pen with protective function according to claim 1, characterized in that: The upper end of the outer shell (1) is threadedly connected to a protective shell (2), the surface of the protective shell (2) is provided with a rubber pad, and the surface of the rubber pad is provided with anti-slip grooves with a depth of two millimeters.

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