Circuit detection device convenient to carry

Abstract

The utility model discloses a portable circuit detection device, which belongs to the field of circuit detection equipment, and is characterized in that a fixed seat and a movable seat are provided with a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are used for accommodating a detection head, and the detection head is fixed on the movable seat and the fixed seat through the elasticity of an elastic strip; tail strips are arranged at the openings of the lower ends of the movable seat and the fixed seat, first screw holes are formed in the tail strips, fastening bolts are inserted into the first screw holes, and the openings of the movable seat and the fixed seat are closed through fastening nuts, so that the storage firmness of the detection head is improved. The opening of the storage cavity is arc-shaped, so that the detection head can be conveniently inserted and taken out, and the inner-wall anti-skid rubber strip ensures that the detection head is stable. The elastic strip prevents the detection head from falling off and protects the detection head from being damaged and lost. The fixed seat, the movable seat and the tail strip are integrally designed, parts are reduced, assembly is simplified, and the structural strength is enhanced. And through tight combination and matched use of screw hole fastening bolts, the stability and reliability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit testing equipment, and in particular to a portable circuit testing device. Background Technology

[0002] A multimeter is an indispensable basic tool in circuit testing and a crucial measuring instrument in power electronics and other related fields. Its primary purpose is to measure voltage, current, and resistance. It is a magnetoelectric instrument with a rectifier, capable of measuring various electrical parameters such as AC and DC current, voltage, and resistance. Multimeters can be divided into two categories: analog (pointer) multimeters and digital multimeters. Analog multimeters are suitable for measuring voltage, current, and resistance in high-voltage circuits, and can determine the condition of components such as diodes, transistors, thyristors, and electrolytic capacitors, as well as measure the static resistance of integrated circuit pins. Digital multimeters provide direct readings and are used to measure voltage, current, resistance, transistor amplification factor, and capacitance. They can also use their buzzer to measure circuit continuity and determine the layout of printed circuits. A multimeter typically consists of three main parts: the meter head, the measuring circuit, and a selector switch. The meter head is a sensitive galvanometer, with various symbols, scales, and numerical values ​​printed on its dial. The main function of the measuring circuit is to convert the measured electrical quantity into a quantity suitable for the meter's indication. A selector switch is typically a circular dial with the function and range marked around it, used to select the measurement item and range.

[0003] Current circuit testing multimeters do indeed present a problem in practical use: the separate design of the instrument body, test heads, and connector cables makes them inconvenient to carry. This design requires frequent connection and disconnection of the test heads and connector cables during use, and these messy connectors and test heads not only increase the difficulty of carrying them but may also be damaged due to friction or impact during transport.

[0004] Furthermore, the connector cable is prone to breakage, especially with frequent use and bending. The base of the connector cable and the point where the cable exits are particularly vulnerable to breakage. This not only affects the performance of the multimeter but may also pose a safety hazard to the user. Utility Model Content

[0005] The main objective of this invention is to provide a portable circuit testing device that can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A portable circuit testing device includes a testing instrument, a display area, a dial, an interface and a connector, and a testing head. The display area, dial, and interface are located at the front end of the testing instrument and are arranged sequentially from top to bottom. The testing head is mounted on the interface via a connector.

[0008] The upper rear end of the detection instrument is provided with a fixed base, and the upper end of the fixed base is connected to a movable base through an elastic strip. The fixed base and the movable base are provided with a first storage cavity and a second storage cavity. The first storage cavity and the second storage cavity are used to store the detection head. The elasticity of the elastic strip fixes the detection head on the movable base and the fixed base.

[0009] The lower openings of the movable seat and the fixed seat are provided with tail bars, and the tail bars are provided with first screw holes. Fastening bolts are inserted into the first screw holes, and the openings of the movable seat and the fixed seat are closed by fastening nuts, thereby improving the stability of the detection head storage.

[0010] The fixed seat is fixed to the detection instrument by bolts, and the fixed seat, the movable seat and the elastic strip are welded and fixed. The cross-section of the elastic strip is "C" shaped and the elastic strip is an elastic metal plate.

[0011] The fixed seat and the movable seat have arc-shaped edges. The fixed seat, the movable seat and their matching tail strips are integrated. Both the tail strips on the fixed seat and the tail strips on the movable seat are provided with anti-slip rubber strips.

[0012] The first screw hole on the tail bar of the movable seat is a circular screw hole, and the first screw hole on the tail bar of the fixed seat is an elliptical screw hole. The fastening bolt passes through the two first screw holes, and the two tail bars are fixed by fitting a fastening nut.

[0013] The openings of the first and second storage cavities are arc-shaped, and the inner walls of the first and second storage cavities are provided with anti-slip rubber strips.

[0014] The movable seat has a second screw hole that is compatible with a fastening bolt. The fastening bolt is inserted into the second screw hole, so that the measuring instrument is tilted when placed, making it easier to observe the display area.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The openings of both the first and second storage chambers are arc-shaped, facilitating the insertion and removal of the detection head. Meanwhile, anti-slip rubber strips on the inner walls prevent the detection head from sliding within the chambers, ensuring stability during transport. The elasticity of the elastic strips ensures the detection head will not easily fall off during transport, thus preventing damage or loss.

[0017] The integrated design of the fixed and movable seats with their matching tailstock reduces the number of parts, simplifies the assembly process, and improves the overall structural strength. The tight fit between the movable and fixed seats, along with the use of the first screw hole and fastening bolt on the tailstock, further enhances the stability and reliability of the device. The curved edges of the fixed and movable seats are aesthetically pleasing and reduce the risk of injury to operators, while the anti-slip rubber strip on the tailstock increases grip friction, prevents slippage, and improves operational safety.

[0018] The second screw hole on the movable base, when used in conjunction with the fastening bolt, allows the testing instrument to be placed at an angle, making it easier for operators to observe the display area and thus improving the efficiency and accuracy of the testing work. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the overall structure of this utility model;

[0021] Figure 3 This is a side view of the overall structure of this utility model;

[0022] Figure 4 This is a diagram of the storage assembly of this utility model, consisting of a fixed base, a movable base, a storage cavity, fastening bolts, and fastening nuts.

[0023] In the diagram: 1. Detection instrument; 2. Display area; 3. Dial; 4. Interface; 5. Connector; 6. Detection head; 7. Fixed base; 8. Movable base; 9. First storage cavity; 10. Second storage cavity; 11. Tail bar; 12. Fastening bolt; 13. Fastening nut; 14. First screw hole; 15. Second screw hole; 16. Elastic strip. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 4 As shown, a portable circuit testing device includes a testing instrument 1, a display area 2, a dial 3, an interface 4, a connector 5, and a testing head 6. The display area 2, dial 3, and interface 4 are all located at the front end of the testing instrument 1 and are arranged sequentially from top to bottom. The testing head 6 is mounted on the interface 4 via the connector 5, allowing for easy connection between the testing head 6 and the testing instrument 1.

[0026] The upper rear end of the testing instrument 1 is provided with a fixed base 7, and the upper end of the fixed base 7 is connected to a movable base 8 via an elastic strip 16. A first storage cavity 9 and a second storage cavity 10 are respectively provided on the fixed base 7 and the movable base 8. These two storage cavities are used to store the testing head 6. Through the elasticity of the elastic strip 16, the testing head 6 can be fixed on the movable base 8 and the fixed base 7, ensuring that the testing head 6 will not easily fall off during transport.

[0027] Both the movable seat 8 and the fixed seat 7 have tail bars 11 at their lower openings, and the tail bars 11 have first screw holes 14. Fastening bolts 12 are inserted into the first screw holes 14, and the openings of the movable seat 8 and the fixed seat 7 are closed by fastening nuts 13. This design further enhances the robustness of the storage of the detection head 6, making the entire device more stable and reliable. The fixed seat 7, the movable seat 8, the storage cavity, the fastening bolts 12, and the fastening nuts 13 together form a storage assembly that is easy for testing personnel to carry.

[0028] The fixed base 7 is bolted to the detection instrument 1, while the fixed base 7, the movable base 8, and the elastic strip 16 are welded together. The elastic strip 16 has a "C"-shaped cross-section, which gives it good elasticity and strength, effectively securing the detection head 6. The elastic strip 16 is made of elastic metal sheet, ensuring its elasticity and durability.

[0029] The fixed base 7 and the movable base 8 have rounded edges, which is not only aesthetically pleasing but also reduces the risk of injury to operators. The fixed base 7 and the movable base 8, along with their matching tail rod 11, are integrated into a single unit. This design reduces the number of parts, simplifies the assembly process, and improves overall structural strength. Both the tail rod 11 on the fixed base 7 and the movable base 8 are equipped with anti-slip rubber strips to increase grip friction, prevent slippage, and enhance operational safety.

[0030] The first screw hole 14 on the tail bar 11 of the movable seat 8 is a circular screw hole, while the first screw hole 14 on the tail bar 11 of the fixed seat 7 is an elliptical screw hole. The fastening bolt 12 passes through these two first screw holes 14, and after the fastening nut 13 is fitted, the two tail bars 11 can be fixed. This design ensures a tight connection between the movable seat 8 and the fixed seat 7, further improving the stability and reliability of the device.

[0031] The openings of the first storage cavity 9 and the second storage cavity 10 are arc-shaped, which facilitates the insertion and removal of the detection head 6. Meanwhile, the inner walls of the first storage cavity 9 and the second storage cavity 10 are equipped with anti-slip rubber strips to prevent the detection head 6 from sliding within the cavity, ensuring its stability during transport.

[0032] The movable base 8 also has a second screw hole 15, which is adapted to the fastening bolt 12. After the fastening bolt 12 is inserted into the second screw hole 15, the measuring instrument 1 can be tilted when placed, making it easier for the operator to observe the display area 2. This design can improve the efficiency and accuracy of the testing work and make the testing process more convenient.

[0033] Usage procedure: Connect the test head 6 to interface 4 of the test instrument 1 via connector 5. Turn on the test instrument 1 and perform the required circuit testing operations. After the test is completed, turn off the test instrument 1.

[0034] Storage Procedure: Remove the detection head 6 from the interface 4. Insert the detection head 6 into the first storage cavity 9 of the fixed base 7 or the second storage cavity 10 of the movable base 8. The elasticity of the elastic strip 16 ensures the detection head 6 is fixed to the movable base 8 and the fixed base 7. Align the first screw holes 14 on the tail bars 11 of the fixed base 7 and the movable base 8. Insert the fastening bolt 12 and secure the tail bar 11 with the fastening nut 13, ensuring a tight fit between the movable base 8 and the fixed base 7. If necessary, the fastening bolt 12 can be inserted into the second screw hole 15 of the movable base 8 to tilt the detection instrument 1 for easier observation of the display area 2. Place the entire device in a suitable carrying case or tool bag for safety and ease of future use.

[0035] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable circuit testing device, comprising a testing instrument (1), a display area (2), a dial (3), an interface (4), a connector (5), and a testing head (6), wherein the display area (2), the dial (3), and the interface (4) are located at the front end of the testing instrument (1) and are arranged sequentially from top to bottom, and the testing head (6) is mounted on the interface (4) via the connector (5), characterized in that: The upper rear end of the detection instrument (1) is provided with a fixed seat (7), and the upper end of the fixed seat (7) is connected to a movable seat (8) through an elastic strip (16). The fixed seat (7) and the movable seat (8) are provided with a first storage cavity (9) and a second storage cavity (10). The first storage cavity (9) and the second storage cavity (10) are used to store the detection head (6). The elasticity of the elastic strip (16) fixes the detection head (6) on the movable seat (8) and the fixed seat (7). The lower opening of the movable seat (8) and the fixed seat (7) is provided with a tail bar (11), and a first screw hole (14) is provided on the tail bar (11). The first screw hole (14) is inserted into the fastening bolt (12), and the opening of the movable seat (8) and the fixed seat (7) is closed by the fastening nut (13), thereby improving the stability of the detection head (6).

2. The portable circuit testing device according to claim 1, characterized in that: The fixed seat (7) is fixed to the detection instrument (1) by bolts, and the fixed seat (7), the movable seat (8) and the elastic strip (16) are welded and fixed. The cross-section of the elastic strip (16) is "C" shaped and the elastic strip (16) is an elastic metal plate.

3. The portable circuit testing device according to claim 2, characterized in that: The edges of the fixed seat (7) and the movable seat (8) are arc-shaped. The fixed seat (7) and the movable seat (8) are integrated with their matching tail strips (11). Both the tail strips (11) on the fixed seat (7) and the tail strips (11) on the movable seat (8) are provided with anti-slip rubber strips.

4. The portable circuit testing device according to claim 3, characterized in that: The first screw hole (14) on the tail bar (11) of the movable seat (8) is a circular screw hole, and the first screw hole (14) on the tail bar (11) of the fixed seat (7) is an elliptical screw hole. The fastening bolt (12) passes through the two first screw holes (14) and the two tail bars (11) are fixed by the fastening nut (13).

5. A portable circuit testing device according to claim 4, characterized in that: The openings of the first storage cavity (9) and the second storage cavity (10) are arc-shaped, and the inner walls of the first storage cavity (9) and the second storage cavity (10) are provided with anti-slip rubber strips.

6. A portable circuit testing device according to claim 5, characterized in that: The movable seat (8) is provided with a second screw hole (15), which is adapted to the fastening bolt (12). The fastening bolt (12) is inserted into the second screw hole (15) so that the detection instrument (1) is tilted when placed, making it easier to observe the display area (2).

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