Detachable insulating electroprobe

Abstract

The utility model relates to the field of test pencils, in particular to a detachable insulating test pencil, which comprises a test pencil shell, a mounting groove is arranged in the test pencil shell, a test pencil back plate is arranged in the mounting groove, a pencil clip is arranged on the test pencil back plate, and a fixing assembly for fixing the test pencil back plate in the mounting groove is arranged at the bottom end of the test pencil back plate. A square groove is formed in the upper end face of the test pencil backboard in a penetrating mode, a limiting assembly used for limiting the pencil clip is arranged in the square groove, and an L-shaped rod used for pulling the fixing assembly is inserted into the bottom end of the pencil clip. Compared with the prior art, through the arrangement of the fixing assembly and the limiting assembly, the pencil clip is pushed to move forwards in the square groove, the fixing assembly is pulled through the connecting rod fixedly connected with the pencil clip, the test pencil backboard is fixed, and meanwhile the limiting assembly fixedly connected with the side wall of the square groove limits the pencil clip; the technical problem that a noctilucent mounting plate is easy to fall off from a test pencil shell, so that the test pencil falls off and is damaged is solved.

Description

Technical Field

[0001] The utility model relates to the field of electro-test pens, in particular to a detachable insulating electro-test pen. Background Technique

[0002] An electro-test pen, also known as an electric pen, is one of the commonly used tools for electricians and is usually used to determine whether an object is charged. A digital display electro-test pen is a type of electro-test pen that usually has a display screen and can display the measured electrical value. The existing battery-free driven electro-test pen usually includes an upper and a lower housing, and the electro-test device is installed in the two housings. When assembling, it is relatively inconvenient to assemble the upper and lower housings. Its specific structure is as shown in an electro-test pen proposed in the patent number CN216595286U. The pen includes an electro-test pen housing and an electro-test component. An installation chamber is provided inside the electro-test pen housing, and an installation opening communicating with the installation chamber is provided on the back surface of the electro-test pen housing. The electro-test component can be installed into the installation chamber along the installation opening; a luminous installation plate is detachably arranged at the position of the installation opening; a groove is provided on the front surface of the electro-test pen housing, and a luminous decorative panel is arranged in the groove. In the prior art, through the mutual cooperation of the electro-test pen housing provided with the installation opening and the luminous installation plate, not only is the structure simple and firm, but also during the assembly process, the electro-test component can be installed along the installation opening, and the assembly operation is convenient. At the same time, the luminous installation plate and the luminous decorative panel have the function of luminescence, and when used under dark environmental conditions, the guiding effect is remarkable, which is convenient for electro-test operation.

[0003] In the prior art, through the mutual cooperation of the electro-test pen housing provided with the installation opening and the luminous installation plate, the assembly operation is convenient, and when used under dark environmental conditions, the guiding effect is remarkable, which is convenient for electro-test operation. However, the existing technical solution has the following defects during operation:

[0004] In the prior art, the luminous installation plate is only limited by abutting against the limit installation ribs, and the luminous installation plate is very easy to fall off from the electro-test pen housing. Because the pen clip is clamped with the luminous installation plate, when the electro-test pen is clipped on the staff's clothes, under the action of the gravity of the electro-test pen itself, the pen clip will pull the luminous installation plate to move upward, resulting in the luminous installation plate falling off from the electro-test pen housing and the electro-test pen falling and being damaged. Content of the Utility Model

[0005] The utility model aims to provide a detachable insulating electro-test pen, which is mainly used to solve the technical problem that the luminous installation plate in the prior art is very easy to fall off from the electro-test pen housing, resulting in the electro-test pen falling and being damaged.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A detachable insulating electric pen, comprising an electric pen housing. An installation groove is provided in the electric pen housing. A back plate of the electric pen is arranged in the installation groove. A pen clip is installed on the back plate of the electric pen. A fixing component for fixing the back plate of the electric pen in the installation groove is provided at the bottom end of the back plate of the electric pen. A square groove is formed through the upper end surface of the back plate of the electric pen. A limiting component for limiting the pen clip is arranged in the square groove. A clamping block is fixedly connected to the bottom end of the pen clip. The clamping block is slidably connected with the square groove. An L-shaped rod for pulling the fixing component is inserted into the bottom end of the pen clip.

[0008] The working principle and beneficial effects of the present utility model:

[0009] 1. Working principle: When assembling the electric pen, after the components in the electric pen are installed, place the back plate of the electric pen on the installation groove. At this time, push the pen clip to move forward in the square groove, and pull the fixing component through the T-shaped rod fixedly connected to the pen clip to fix the back plate of the electric pen. At the same time, the limiting component fixedly connected to the side wall of the square groove limits the pen clip to prevent the pen clip from moving.

[0010] 2. Beneficial effects: In the prior art, the electric pen housing with an installation opening and the luminous installation plate cooperate with each other, and the assembly operation is convenient. When used under dark environmental conditions, the guiding effect is remarkable and it is convenient for electric pen operation. However, in the prior art, the luminous installation plate is only limited by abutting against the limiting installation ribs, and the luminous installation plate is very easy to fall off from the electric pen housing. Because the pen clip is clamped with the luminous installation plate, when the pen clip is clipped on the staff's clothes, under the action of the gravity of the electric pen itself, the pen clip will pull the luminous installation plate to move upward, resulting in the luminous installation plate falling off from the electric pen housing and the electric pen falling and being damaged. In this solution, by setting the fixing component and the limiting component, when assembling the electric pen, after the components in the electric pen are installed, place the back plate of the electric pen on the upper end surface of the installation groove. At this time, push the pen clip to move forward in the square groove, and pull the fixing component through the connecting rod fixedly connected to the pen clip to fix the back plate of the electric pen. At the same time, the limiting component fixedly connected to the side wall of the square groove limits the pen clip, solving the technical problem that the luminous installation plate is very easy to fall off from the electric pen housing, resulting in the electric pen falling and being damaged.

[0011] Preferably, the fixing component includes a U-shaped block fixedly connected to the bottom end of the back plate of the voltage tester. Rectangular chutes are oppositely formed inside the U-shaped block. First trapezoidal blocks are slidably connected and symmetrically arranged inside the U-shaped block. Rectangular strips adapted to the rectangular chutes are fixedly connected to the upper and lower end faces of the first trapezoidal blocks. A rectangular block is fixedly connected to the side of the first trapezoidal block. A slot adapted to the rectangular block is formed in the inner side wall of the installation groove. A second trapezoidal block is slidably connected inside the U-shaped block and located between the symmetrically arranged first trapezoidal blocks. Trapezoidal strips are fixedly connected to both sides of the second trapezoidal block. A trapezoidal chute adapted to the trapezoidal strip is formed in the side of the first trapezoidal block away from the rectangular block, and the trapezoidal strip is slidably connected to the trapezoidal chute. One end of the second trapezoidal block is fixedly connected to a T-shaped rod, and the end of the T-shaped rod away from the second trapezoidal block is fixedly connected to an L-shaped rod. When the pen clip is moved forward, the L-shaped rod fixedly connected to the bottom end of the pen clip is driven to move forward. The forward movement of the L-shaped rod drives the T-shaped rod fixedly connected thereto to move forward. The forward movement of the T-shaped rod drives the second trapezoidal block to move forward in the trapezoidal chute and squeeze the first trapezoidal block to move horizontally in the rectangular chute. The horizontal movement of the first trapezoidal block in the rectangular chute drives the rectangular block to move outward in the installation groove until it enters the slot, completing the fixation of the back plate of the voltage tester.

[0012] Preferably, a rubber pad is fixedly connected inside the slot; the rubber pad can increase the friction between the slot and the rectangular block, make the connection between the slot and the rectangular block tighter, and at the same time can also protect the rectangular block and increase the service life of the rectangular block.

[0013] Preferably, the length of the chute is less than the length of the U-shaped block; it can limit the first trapezoidal block and the second trapezoidal block to prevent the first trapezoidal block and the second trapezoidal block from falling off the U-shaped block.

[0014] Preferably, the limiting component includes a V-shaped elastic sheet arranged in the square groove. One end of the V-shaped elastic sheet is fixedly connected to the inner side wall of the square groove, and the end of the V-shaped elastic sheet away from the inner side wall of the square groove is slidably connected to the square groove. The top end of the V-shaped elastic sheet extends out of the upper end face of the square groove. A V-shaped groove adapted to the V-shaped elastic sheet is formed at the bottom end of the pen clip. When the pen clip is pushed forward, when the pen clip touches the top end of the V-shaped elastic sheet, the V-shaped elastic sheet is squeezed to deform until the top end of the V-shaped elastic sheet is flush with the upper end face of the square groove. When the V-shaped groove formed at the bottom end of the pen clip moves to the top end of the V-shaped elastic sheet, the deformation of the V-shaped elastic sheet is restored, and the top end of the V-shaped elastic sheet is stuck into the V-shaped groove to limit the pen clip.

[0015] Preferably, the width of the V-shaped elastic sheet is not greater than the distance between the two L-shaped rods; it ensures that the V-shaped elastic sheet will not block the movement of the L-shaped rods.

[0016] Preferably, a plurality of support columns are fixedly connected to the inner side wall of the installation groove, and a cylindrical platform is fixedly connected to the top of the support column. A plurality of circular holes adapted to the cylindrical platform are opened at the bottom end of the test pen back plate; through the insertion connection of the cylindrical platform and the circular holes, the stability of the connection between the test pen back plate and the pen housing is further increased, and the test pen back plate is prevented from falling off the pen housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 6 is a three-dimensional structure diagram of a detachable insulating test pen of the utility model patent;

[0018] Figure 2 FIG. 7 is a three-dimensional exploded view of a detachable insulating test pen of the utility model patent;

[0019] Figure 3 FIG. 8 is a structure diagram of a pen clip and a fixing component of a detachable insulating test pen of the utility model patent;

[0020] Figure 4 FIG. 9 is a structure diagram of a limiting component and a fixing component of a detachable insulating test pen of the utility model patent;

[0021] Figure 5 FIG. 10 is an exploded view of a fixing component of a detachable insulating test pen of the utility model patent;

[0022] Figure 6 FIG. 11 is an enlarged view of part A of a detachable insulating test pen of the utility model patent.

[0023] Reference numerals in the accompanying drawings of the specification include: 1, test pen housing; 11, slot; 12, support column; 121, cylindrical platform; 13, installation groove; 2, test pen back plate; 21, square groove; 22, circular hole; 3, pen clip; 31, V-shaped groove; 32, block; 4, V-shaped elastic sheet; 5, U-shaped block; 51, rectangular sliding groove; 6, first trapezoidal block; 61, trapezoidal sliding groove; 62: rectangular strip; 7, rectangular block; 8, second trapezoidal block: 81, trapezoidal strip; 82, T-shaped rod; 83, L-shaped rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 - 5As shown in the figure, there is a voltage tester housing 1. An installation groove 13 is provided inside the voltage tester housing 1. A voltage tester back plate 2 is arranged in the installation groove 13. A pen clip 3 is installed on the voltage tester back plate 2. It is characterized in that a fixing component for fixing the voltage tester back plate 2 in the installation groove 13 is provided at the bottom end of the voltage tester back plate 2. The fixing component includes a U-shaped block 5 fixedly connected to the bottom end of the voltage tester back plate 2. Rectangular sliding grooves 51 are oppositely provided inside the U-shaped block 5. First trapezoidal blocks 6 are slidably connected and symmetrically arranged inside the U-shaped block 5. Rectangular strips 62 adapted to the rectangular sliding grooves 51 are fixedly connected to the upper and lower end faces of the first trapezoidal blocks 6. A rectangular block 7 is fixedly connected to the side of the first trapezoidal block 6. A slot 11 adapted to the rectangular block 7 is provided on the inner side wall of the installation groove 13. A second trapezoidal block 8 is slidably connected inside the U-shaped block 5 and is located between the symmetrically arranged first trapezoidal blocks 6. Trapezoidal strips 81 are fixedly connected to both sides of the second trapezoidal block 8. Trapezoidal sliding grooves 61 adapted to the trapezoidal strips 81 are provided on the side of the first trapezoidal block 6 away from the rectangular block 7. The trapezoidal strips 81 are slidably connected with the trapezoidal sliding grooves 61. One end of the second trapezoidal block 8 is fixedly connected to a T-shaped rod 82. The end of the T-shaped rod 82 away from the second trapezoidal block 8 is fixedly connected to an L-shaped rod 83. When the pen clip 3 is moved forward, it drives the L-shaped rod fixedly connected to the bottom end of the pen clip to move forward. The forward movement of the L-shaped rod 83 drives the T-shaped rod 82 fixedly connected to it to move forward. The forward movement of the T-shaped rod 82 drives the second trapezoidal block 8 to move forward in the trapezoidal sliding groove 61 and squeeze the first trapezoidal block 6 to move horizontally in the rectangular sliding groove 51. The horizontal movement of the first trapezoidal block 6 in the rectangular sliding groove 51 drives the rectangular block 7 to move outward in the installation groove 13 until it enters the slot 11, completing the fixation of the voltage tester back plate 2. A square groove 21 is provided through the upper end face of the voltage tester back plate 2. A limiting component for limiting the pen clip 3 is provided in the square groove 21. The limiting component includes a V-shaped elastic sheet 4 arranged in the square groove 21. One end of the V-shaped elastic sheet 4 is fixedly connected to the inner side wall of the square groove 21. The end of the V-shaped elastic sheet 4 away from the inner side wall of the square groove 21 is slidably connected with the square groove 21. The top end of the V-shaped elastic sheet 4 extends out of the upper end face of the square groove 21. A V-shaped groove 31 adapted to the V-shaped elastic sheet 4 is provided at the bottom end of the pen clip 3. When the pen clip 3 is pushed forward, when the pen clip touches the top end of the V-shaped elastic sheet 4, it squeezes the V-shaped elastic sheet 4 to deform until the top end of the V-shaped elastic sheet 4 is flush with the upper end face of the square groove 21. When the V-shaped groove 31 provided at the bottom end of the pen clip 3 moves to the top end of the V-shaped elastic sheet 4, the V-shaped elastic sheet 4 deforms and recovers, and the top end of the V-shaped elastic sheet 4 is stuck into the V-shaped groove 31 to limit the pen clip 3. A clamping block 32 is fixedly connected to the bottom end of the pen clip 3. The clamping block 32 is slidably connected with the square groove 21. An L-shaped rod 83 for pulling the fixing component is inserted at the bottom end of the pen clip 3.

[0026] As can be seen from the above, the specific implementation manner of the present utility model is as follows:

[0027] When assembling the electric pen, after the components inside the electric pen are installed, place the back plate 2 of the electric pen in the installation groove 13, insert the cylindrical platform 121 into the jack 22, and then when moving the pen clip 3 forward, drive the L-shaped rod fixedly connected to the bottom end of the pen clip to move forward. The forward movement of the L-shaped rod 83 drives the T-shaped rod 82 fixedly connected to it to move forward. The forward movement of the T-shaped rod 82 drives the second trapezoidal block 8 to move forward in the trapezoidal chute 61 and squeeze the first trapezoidal block 6 to move horizontally in the rectangular chute 51. The horizontal movement of the first trapezoidal block 6 in the rectangular chute 51 drives the rectangular block 7 to move outward in the installation groove 13 until it enters the slot 11, completing the fixation of the back plate 2 of the electric pen. When pushing the pen clip 3 forward, when the pen clip touches the top end of the V-shaped elastic piece 4, squeeze the V-shaped elastic piece 4 to deform it until the top end of the V-shaped elastic piece 4 is flush with the upper end surface of the square groove 21. When the V-shaped groove 31 opened at the bottom end of the pen clip 3 moves to the top end of the V-shaped elastic piece 4, the V-shaped elastic piece 4 recovers from deformation, and the top end of the V-shaped elastic piece 4 snaps into the V-shaped groove 31 to limit the pen clip 3.

[0028] When disassembling the back plate 2 of the electric pen, move the pen clip 3 backward to drive the L-shaped rod fixedly connected to the bottom end of the pen clip to move backward. The backward movement of the L-shaped rod 83 drives the T-shaped rod 82 fixedly connected to it to move backward. The backward movement of the T-shaped rod 82 drives the second trapezoidal block 8 to move backward in the trapezoidal chute 61 and pull the first trapezoidal block 6 to move horizontally in the rectangular chute 51. The horizontal movement of the first trapezoidal block 6 in the rectangular chute 51 drives the rectangular block 7 to move inward in the installation groove 13 until it disengages from the slot 11, completing the disassembly of the back plate 2 of the electric pen.

[0029] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A detachable insulated electric test pen, comprising an electric test pen housing (1), a mounting groove (13) is provided in the electric test pen housing (1), a back plate (2) of the electric test pen is provided in the mounting groove (13), a pen clip (3) is installed on the back plate (2), and the characteristics are as follows: The bottom end of the test pencil back plate (2) is provided with a fixing assembly for fixing the test pencil back plate (2) in the mounting groove (13); a square groove (21) is formed through the upper end surface of the test pencil back plate (2); a limiting assembly for limiting the position of the pen clip (3) is provided in the square groove (21); a clamping block (32) is fixedly connected to the bottom end of the pen clip (3); the clamping block (32) is slidably connected to the square groove (21); and an L-shaped rod (83) for pulling the fixing assembly is inserted into the bottom end of the pen clip (3).

2. A detachable insulated electric pencil according to claim 1, characterized in that: The fixing assembly comprises a U-shaped block (5) fixedly connected to the bottom end of the test pencil back plate (2), the U-shaped block (5) is provided with rectangular slide grooves (51) opposite to each other inside, a first trapezoidal block (6) is slidably connected and symmetrically arranged inside the U-shaped block (5), the upper and lower end surfaces of the first trapezoidal block (6) are fixedly connected with rectangular strips (62) adapted to the rectangular slide groove (51), the side edge of the first trapezoidal block (6) is fixedly connected with a rectangular block (7), the inner side wall of the installation groove (13) is provided with a slot (11) adapted to the rectangular block (7), and the U-shaped block (5) is provided with a plurality of slots (11) adapted to the rectangular block (7). A second trapezoidal block (8) is internally slidably connected and located in the middle of the first trapezoidal block (6) which is symmetrically arranged. Trapezoidal strips (81) are fixedly connected to both sides of the second trapezoidal block (8). A trapezoidal slide groove (61) adapted to the trapezoidal strip (81) is provided on the side of the first trapezoidal block (6) away from the rectangular block (7), and the trapezoidal strip (81) is slidably connected to the trapezoidal slide groove (61). A T-shaped rod (82) is fixedly connected to one end of the second trapezoidal block (8), and an end of the T-shaped rod (82) away from the second trapezoidal block (8) is fixedly connected to an L-shaped rod (83).

3. A detachable insulated electric pencil according to claim 2, characterized in that: A rubber pad is fixedly connected inside the slot (11).

4. A detachable insulated electric pencil according to claim 2, characterized in that: The length of the sliding groove (51) is smaller than the length of the U-shaped block (5).

5. A detachable insulated electric pencil according to claim 1, characterized in that The limiting assembly comprises a V-shaped spring piece (4) arranged in the square groove (21), one end of the V-shaped spring piece (4) is fixedly connected to the inner side wall of the square groove (21), one end of the V-shaped spring piece (4) away from the inner side wall of the square groove (21) is slidably connected to the square groove (21), the top end of the V-shaped spring piece (4) extends out of the upper end surface of the square groove (21), and the bottom end of the pen clip (3) is provided with a V-shaped groove (31) adapted to the V-shaped spring piece (4).

6. A detachable insulated electric pencil according to claim 5, characterized in that , the width of the V-shaped spring piece (4) is not greater than the distance between the two L-shaped rods.

7. A detachable insulated electric pencil according to claim 1, characterized in that: A plurality of support columns (12) are fixedly connected to the inner wall of the installation groove (13), a cylindrical platform (121) is fixedly connected to the top of the support column (12), and a plurality of circular holes (22) matching the cylindrical platform (121) are formed at the bottom of the test pencil back plate (2).

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