Test pencil capable of preventing battery from falling off

Abstract

The utility model discloses a test pencil capable of preventing a battery from falling off. The test pencil comprises a test pencil shell, a battery cover and a probe, the electroprobe shell is further provided with a front shell body and a rear shell body, the front shell body and the rear shell body are buckled to form the electroprobe shell body, the end face of the rear shell body is provided with an installation groove used for installing a battery, T-shaped sliding grooves are formed in the positions, corresponding to the installation groove, of the two sides of the rear shell body, and the battery cover is in sliding connection with the rear shell body through the T-shaped sliding grooves. One end of the battery cover is further provided with an elastic piece protruding outwards, the position, corresponding to the elastic piece of the battery cover, of the rear shell is provided with a positioning groove where the elastic piece is embedded, and the outer edge of the elastic piece and the interior of the positioning groove are both provided with driving slopes. The battery cover is combined with the rear shell through the T-shaped sliding groove, the connecting strength of the battery cover and the rear shell is greatly higher than that of a locking mode that a U-shaped elastic piece is clamped into the pen body, the battery cover is embedded into a positioning groove in the end face of the rear shell through a protruding elastic piece to be positioned, the moving direction of the battery cover is further fixed, and therefore an internal battery is prevented from falling off during collision.

Description

Technical Field

[0001] The utility model relates to the technical field of electric test pens, in particular to an electric test pen with a battery that can prevent it from falling out. Background Art

[0002] An electrician's pen is also called an electrician's test pen, or "electrician's pen" for short. It is an electrician's tool used to test whether the wire is charged. Most of the common digital electrician's pen testers on the market are powered by batteries. During daily use, the battery is fixed in the electrician's pen through the battery cover. However, the electrician's pen will inevitably fall off during daily use. The existing battery cover is only locked by a U-shaped spring clip inserted into the pen body after being buckled, or the battery cover is directly locked with a screw to prevent it from falling off. The U-shaped spring clip makes it very easy for the battery cover to fall off after the electrician's pen falls and bumps, causing the internal battery to loosen and fall out; the way the battery cover is locked with screws is not convenient for later battery replacement. Therefore, a battery-proof electrician's pen tester is designed to solve the above problem. Utility Model Content

[0003] Aiming at the shortcomings of the existing electric test pencils, the utility model aims to provide a battery-proof electric test pencil, which has the advantages of preventing the internal battery from falling off and facilitating battery replacement.

[0004] To achieve the above-mentioned purpose, a technical solution adopted by the utility model is: a battery-proof electric pen tester, comprising an electric pen housing, a battery cover and a probe, wherein the probe is arranged at one end of the electric pen housing for detection, and a detachable battery cover is arranged at the other end of the electric pen housing; the electric pen housing also comprises a front housing and a rear housing, wherein the front housing and the rear housing are buckled together to form the electric pen housing, the end surface of the rear housing comprises a mounting groove for mounting a battery, and positions of the mounting grooves on both sides of the rear housing are provided with T-shaped slide grooves, the battery cover is slidably connected to the rear housing through the T-shaped slide grooves, one end of the battery cover also comprises an outwardly protruding spring sheet, and the rear housing comprises a positioning groove for embedding the spring sheet at a position corresponding to the spring sheet of the battery cover, the outer edge of the spring sheet and the inside of the positioning groove both comprise a driving inclined surface, and the inner side of the driving inclined surface also comprises a locking surface perpendicular to the sliding direction of the battery cover;

[0005] Preferably, the middle portion of the front housing also has a display screen for displaying test data;

[0006] Preferably, the front housing is also provided with a plurality of waterproof buttons for switching data on both sides corresponding to the display screen;

[0007] Preferably, a circuit board is provided between the front housing and the rear housing;

[0008] Preferably, the outer surfaces of the front housing and the battery cover also have anti-slip ribs;

[0009] Preferably, the outer end surface of the battery cover also has a pen clip;

[0010] The beneficial effects of the present utility model are as follows: 1. The battery cover is combined with the rear housing through a T-shaped sliding groove, and the connection strength between the two is much higher than the locking method of the U-shaped elastic piece being snapped into the pen body. Moreover, the battery cover is positioned by the protruding elastic piece being embedded into the positioning groove on the end face of the rear housing, further fixing the moving direction of the battery cover, thereby preventing the internal battery from falling off during a collision; 2. By providing a detachable battery cover at one end of the electric pen housing, it is more convenient to replace the battery when needed, and no additional tools are required for disassembly and assembly. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structural view of the present utility model;

[0012] Figure 2 It is a three-dimensional structural view of the battery cover of the present utility model;

[0013] Figure 3 It is a three-dimensional structural view of the electric pen housing of the present utility model;

[0014] Figure 4 It is a cross-sectional structural view of the rear housing of the present utility model. Detailed Embodiment

[0015] The following elaborates on the preferred embodiments of the present utility model in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0016] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "up", "down", "left", "right", "inside", "outside", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0017] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided with", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] Please refer to Figures 1 to 4 , the embodiments of the present utility model include:

[0019] A battery-proof electric pen tester comprises an electric pen housing 1, a battery cover 2 and a probe 3, wherein the probe 3 is arranged at one end of the electric pen housing 1 for detection, and a detachable battery cover 2 is arranged at the other end of the electric pen housing 1; the electric pen housing 1 also comprises a front housing 4 and a rear housing 5, wherein the front housing 4 and the rear housing 5 are buckled together to form the electric pen housing 1, the end surface of the rear housing 5 comprises a mounting groove 51 for mounting a battery, and the two sides of the rear housing 5 comprise T-shaped slide grooves 52 at positions corresponding to the mounting grooves 51, the battery cover 2 is slidably connected to the rear housing 5 via the T-shaped slide grooves 52, one end of the battery cover 2 also comprises an outwardly protruding elastic sheet 21, the rear housing 5 comprises a positioning groove 53 for embedding the elastic sheet 21 at a position corresponding to the position of the elastic sheet 21 of the battery cover 2, the outer edge of the elastic sheet 21 and the inner side of the positioning groove 53 comprise a driving inclined surface 6, and the inner side of the driving inclined surface 6 also comprises a locking surface 61 perpendicular to the sliding direction of the battery cover 2;

[0020] The middle part of the front housing 4 also has a display screen 7 for displaying test data;

[0021] The front housing 4 is also provided with a plurality of waterproof buttons 8 for switching data on both sides corresponding to the display screen 7;

[0022] A circuit board 9 is also provided between the front housing 4 and the rear housing 5;

[0023] The outer surfaces of the front housing 4 and the battery cover 2 also have anti-slip ribs 10;

[0024] The outer end surface of the battery cover 2 also has a pen clip 22;

[0025] Through the above settings, in the actual working process, its specific working principle is as follows:

[0026] When installing the battery cover 2, first insert the battery cover 2 into the T-shaped slide groove 52 from one side, so that the battery cover 2 moves to the bottom along the T-shaped slide groove 52, and the spring piece 21 protruding from one end of the battery cover 2 is inserted into the positioning groove 53, and the driving inclined surface 6 on the outer edge of the spring piece 21 and the driving inclined surface 6 in the positioning groove 53 touch each other, so that the spring piece 21 is compressed downward under the action of the driving inclined surface 6. When the battery cover 2 moves to the bottom end of the T-shaped slide groove 52, the outer edge of the spring piece 21 and the driving inclined surface 6 in the positioning groove 53 also slide to the bottom end. At this time, the compressed spring piece 21 is pressed downward under the action of the elastic force. The battery cover 2 is then pushed back upwards, so that the locking surface 61 inside the inclined surface 6 driven by the spring sheet 21 and the locking surface 61 inside the inclined surface 6 driven by the positioning groove 53 fit together. At this time, the battery cover 2 can no longer slide and be removed along the T-shaped slide groove 52. The battery cover 2 is connected to the rear shell 5 through the T-shaped slide groove 52. The connection strength between the two is much higher than the locking method of the U-shaped spring sheet 21 inserted into the pen body. The battery cover 2 is positioned by inserting the protruding spring sheet 21 into the positioning groove 53 on the end face of the rear shell 5, which further fixes the moving direction of the battery cover 2, thereby preventing the internal battery from falling off when bumped.

[0027] When the battery needs to be replaced, the spring piece 21 protruding from the battery cover 2 is pressed inwards, so that the inner locking surface 61 of the spring piece 21 driving the inclined surface 6 and the inner locking surface 61 of the positioning groove 53 driving the inclined surface 6 are offset. At this time, the battery cover 2 is not restricted and can be slid outwards to remove the battery cover 2, so as to replace the battery;

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery-proof tester, characterized in that: It includes an electric pen housing, a battery cover and a probe, wherein the probe is arranged at one end of the electric pen housing for detection, and a detachable battery cover is arranged at the other end of the electric pen housing; the electric pen housing also has a front housing and a rear housing, and the front housing and the rear housing are snapped together to form the electric pen housing, the end face of the rear housing has a mounting groove for installing the battery, and the positions of the mounting grooves on both sides of the rear housing are provided with T-shaped slide grooves, the battery cover is slidably connected to the rear housing through the T-shaped slide grooves, one end of the battery cover also has an outwardly protruding spring sheet, and the rear housing has a positioning groove for embedding the spring sheet corresponding to the position of the battery cover spring sheet, the outer edge of the spring sheet and the inside of the positioning groove are provided with a driving inclined surface, and the inner side of the driving inclined surface also has a locking surface perpendicular to the sliding direction of the battery cover.

2. A battery-proof electric tester according to claim 1, characterized in that: The middle part of the front housing also has a display screen for displaying test data.

3. The battery-proof electric tester according to claim 1, characterized in that: The front housing is also provided with a plurality of waterproof buttons for switching data on both sides corresponding to the display screen.

4. The battery-proof electric tester according to claim 1, characterized in that: A circuit board is also provided between the front housing and the rear housing.

5. The battery-proof electric tester according to claim 1, characterized in that: The outer surfaces of the front housing and the battery cover also have anti-slip ribs.

6. The battery-proof electric tester according to claim 1, characterized in that: The outer end surface of the battery cover is also provided with a pen buckle.

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