Input jack protection device

Abstract

The utility model discloses an input jack protection device, which comprises an instrument body, a battery cover, an input jack seat, a spring seat and an input protection frame, a plurality of groups of meter pen insertion holes penetrate through the input jack seat; the spring seat is provided with at least two groups of guide columns in an extending manner, springs are sleeved in the guide columns, and two ends of the springs are respectively propped against the spring seat and the input protection frame; the input protection frame comprises a driving end and a protection end which are integrally formed, the driving end is detachably clamped with the battery cover, and the protection end horizontally moves between a first horizontal position and a second horizontal position relative to the meter pen insertion hole through mutual cooperation of the driving end and the spring; when the battery cover is separated from the limit of the driving end, the protection end is located at the first horizontal position through the elastic force provided by the spring, so that the meter pen insertion hole is shielded by the protection end. When the battery cover clamps and fixes the driving end, the protection end is located at the second horizontal position through the elastic force provided by the spring, so that the meter pen insertion hole is exposed by the protection end.

Description

Technical Field

[0001] The utility model relates to the technical field of instruments and meters, in particular to an input jack protection device. Background Art

[0002] Most of the input jacks of instruments on the market are not equipped with protective devices. Even if there are protective devices, they are mostly manual protection. Such protective devices have the following problems:

[0003] 1. The input jack of the instrument has no protection function. The battery cover can still be opened to replace the battery when the test lead is inserted for testing, which puts the user at risk of electric shock;

[0004] 2. When the battery cover is opened, the input jack is not protected and the test lead can still be inserted for testing, which may cause electric shock to the user.

[0005] 3. Users may easily forget to manually turn on the manual protection of the protection input jack, and can still open the battery cover or insert the test lead, which may put users at risk of electric shock. Utility Model Content

[0006] In order to overcome the above technical problems, the utility model discloses an input jack protection device.

[0007] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0008] An input jack protection device comprises an instrument body and a battery cover which are assembled and arranged, an input jack seat and a spring seat are detachably arranged inside the instrument body, and an input protection frame is movably arranged between the input jack seat and the spring seat;

[0009] A plurality of groups of test lead insertion holes are arranged through the input jack seat;

[0010] The spring seat is extended with at least two sets of guide columns, a spring is sleeved in the guide columns, and two ends of the spring are respectively against the spring seat and the input protection frame;

[0011] The input protection frame includes an integrally formed driving end and a protection end, wherein the driving end is detachably fixed to the battery cover, and the protection end is horizontally moved between a first horizontal position and a second horizontal position relative to the test lead insertion hole through the cooperation between the driving end and the spring;

[0012] When the battery cover is separated from the limit of the driving end, the protection end is located at the first horizontal position due to the elastic force provided by the spring, so that the test lead insertion hole is blocked by the protection end;

[0013] When the battery cover is fastened to the driving end, the protection end is located at the second horizontal position due to the elastic force provided by the spring, so that the test lead insertion hole is exposed by the protection end.

[0014] The above-mentioned input jack protection device, wherein a first moving groove is arranged on the surface of the input jack seat, and the protection end moves horizontally in the first moving groove.

[0015] In the above-mentioned input jack protection device, the protection end is provided with an insertion avoidance groove corresponding to the test lead insertion hole.

[0016] The above-mentioned input jack protection device, wherein a second movable groove is arranged in the middle of the input jack seat, and the driving end moves horizontally in the second movable groove.

[0017] The above-mentioned input jack protection device, wherein the driving end is provided with a clamping groove;

[0018] The battery cover is provided with a locking protrusion extending corresponding to the locking groove.

[0019] In the above-mentioned input jack protection device, the input jack seat and the spring seat are both fixed to the inside of the instrument body by screws.

[0020] The beneficial effects of the utility model are as follows: the utility model cooperates with the input jack seat, the spring seat and the input protection frame to realize that when the battery cover is detached or clamped, the protection end is horizontally moved between the first horizontal position and the second horizontal position relative to the test lead insertion hole, so that the test lead insertion hole is blocked or exposed by the protection end. This helps in practical applications to prevent the battery cover from being opened when the test lead is inserted into the test lead insertion hole for testing, thereby avoiding the risk of electric shock; or when the battery cover is opened, the protection end blocks the test lead insertion hole and the test lead cannot be inserted, thereby avoiding the risk of electric shock, thereby greatly improving the test safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the input jack seat, spring seat and input protection frame in the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the input protection frame in the utility model. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific embodiments to make the technical solution of the present invention easier to understand and grasp, rather than to limit the present invention.

[0026] Example: See Figures 1 to 3 The present embodiment provides an input jack protection device, which includes an instrument body 1 and a battery cover that are assembled, an input jack seat 2 and a spring seat 3 are detachably arranged inside the instrument body 1, and an input protection frame 4 is movably arranged between the input jack seat 2 and the spring seat 3;

[0027] A plurality of test lead insertion holes 21 are provided through the input jack seat 2;

[0028] The spring seat 3 is extended with at least two sets of guide columns, and a spring 31 is sleeved in the guide columns. The two ends of the spring 31 are respectively against the spring seat 3 and the input protection frame 4;

[0029] The input protection frame 4 includes an integrally formed driving end 41 and a protection end 42, wherein the driving end 41 is detachably fixed to the battery cover, and the protection end 42 is horizontally moved between a first horizontal position and a second horizontal position relative to the test lead insertion hole 21 through the cooperation between the driving end 41 and the spring 31;

[0030] When the battery cover is separated from the limit of the driving end 41, the protection end 42 is located at the first horizontal position due to the elastic force provided by the spring 31, so that the test lead insertion hole 21 is blocked by the protection end 42;

[0031] When the battery cover is fastened to the driving end 41 , the protection end 42 is located at the second horizontal position due to the elastic force provided by the spring 31 , so that the test lead insertion hole 21 is exposed by the protection end 42 .

[0032] Specifically, the input jack seat 2, the spring seat 3 and the input protection frame 4 are arranged in cooperation so that when the battery cover is detached or fixed, the protection end 42 can be horizontally moved between a first horizontal position and a second horizontal position relative to the test lead insertion hole 21, so that the test lead insertion hole 21 is blocked or exposed by the protection end 42. This helps in practical applications to prevent the battery cover from being opened when a test lead is inserted into the test lead insertion hole 21 for testing, thereby avoiding the risk of electric shock. Alternatively, when the battery cover is opened, the protection end 42 blocks the test lead insertion hole 21 and the test lead cannot be inserted, thereby avoiding the risk of electric shock, thereby greatly improving the test safety.

[0033] Furthermore, a first movable groove 22 is provided on the surface of the input jack 2, and the protective end 42 moves horizontally in the first movable groove 22, thereby improving the moving stability of the protective end 42 while avoiding obstruction of the movement of the protective end 42 due to fault problems.

[0034] Furthermore, the protection end 42 is provided with an insertion avoidance groove 43 corresponding to the test lead insertion hole 21; when the test lead insertion hole 21 is exposed by the protection end 42, the insertion avoidance groove 43 is used to avoid the test lead, thereby improving the insertion accuracy of the test lead.

[0035] Furthermore, a second movable groove is provided in the middle of the input jack 2, and the driving end 41 moves horizontally in the second movable groove; when the protection end 42 moves horizontally between the first horizontal position and the second horizontal position relative to the test lead insertion hole 21, the driving end 41 moves horizontally in the second movable groove to avoid hindering the movement of the driving end 41 due to a fault problem.

[0036] Furthermore, the driving end 41 is provided with a fixing groove 44, and the battery cover is provided with a fixing protrusion extending corresponding to the fixing groove 44; the fixing groove 44 and the fixing protrusion are installed adaptively to improve the installation stability of the battery cover.

[0037] Furthermore, the input jack seat 2 and the spring seat 3 are both fixed to the inside of the instrument body 1 by screws.

[0038] When the utility model is working, it includes the following steps:

[0039] (1) Open the battery cover. At this time, the battery cover is separated from the limit of the driving end 41. The protective end 42 is located at the first horizontal position due to the elastic force provided by the spring 31, so that the test lead insertion hole 21 is blocked by the protective end 42, and the test lead cannot be inserted at this time;

[0040] (2) Install the battery cover. At this time, the battery cover is fixed to the driving end 41, and the spring 31 is compressed. The protective end 42 is located at the second horizontal position due to the elastic force provided by the spring 31, so that the test lead insertion hole 21 is exposed by the protective end 42. At this time, a test lead is inserted into the test lead insertion hole 21 to achieve safety testing;

[0041] When a test lead is inserted into the test lead insertion hole 21 , the battery cover cannot be opened.

[0042] The design of the utility model is reasonable and ingenious. The input jack seat, spring seat and input protection frame are arranged in coordination, so that when the battery cover is detached or clamped, the protection end can be horizontally moved between a first horizontal position and a second horizontal position relative to the test lead insertion hole, thereby making the test lead insertion hole blocked or exposed by the protection end. This helps in practical applications to prevent the battery cover from being opened when a test lead is inserted into the test lead insertion hole for testing, thereby avoiding the risk of electric shock. Alternatively, when the battery cover is opened, the protection end blocks the test lead insertion hole and the test lead cannot be inserted, thereby avoiding the risk of electric shock, thereby greatly improving the test safety.

[0043] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the technical means and technical contents disclosed above, without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model without departing from the content of the technical solution of the utility model should be covered by the protection scope of the utility model.

Claims

1. An input jack protection device, characterized in that: It comprises an instrument body and a battery cover which are assembled and arranged, an input jack seat and a spring seat are detachably arranged inside the instrument body, and an input protection frame is movably arranged between the input jack seat and the spring seat; A plurality of groups of test lead insertion holes are arranged through the input jack seat; The spring seat is extended with at least two sets of guide columns, a spring is sleeved in the guide columns, and two ends of the spring are respectively against the spring seat and the input protection frame; The input protection frame includes an integrally formed driving end and a protection end, wherein the driving end is detachably fixed to the battery cover, and the protection end is horizontally moved between a first horizontal position and a second horizontal position relative to the test lead insertion hole through the cooperation between the driving end and the spring; When the battery cover is separated from the limit of the driving end, the protection end is located at the first horizontal position due to the elastic force provided by the spring, so that the test lead insertion hole is blocked by the protection end; When the battery cover is fastened to the driving end, the protection end is located at the second horizontal position due to the elastic force provided by the spring, so that the test lead insertion hole is exposed by the protection end.

2. The input jack protection device according to claim 1, characterized in that: A first moving groove is arranged on the surface of the input jack seat, and the protection end moves horizontally in the first moving groove.

3. The input jack protection device according to claim 2, characterized in that: The protection end is provided with an insertion avoidance groove corresponding to the test lead insertion hole.

4. The input jack protection device according to claim 1, characterized in that: A second moving groove is arranged in the middle of the input jack seat, and the driving end moves horizontally in the second moving groove.

5. The input jack protection device according to claim 4, characterized in that: The driving end is provided with a fixing groove; The battery cover is provided with a locking protrusion extending corresponding to the locking groove.

6. The input jack protection device according to claim 1, characterized in that: The input jack seat and the spring seat are both fixed inside the instrument body by screws.

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