Concentric circle heavy punch

Abstract

The utility model discloses a concentric circle counter weight, which comprises a shell, an insulator, an internal conductor, a fixed screw, an internal electrode port and an external electrode port, relates to the field of material resistance test equipment, realizes one counter weight and two electrodes by adding the internal conductor, can finish the test only by using one counter weight during the test, saves the cost, and improves the test efficiency. The weight is reduced, carrying is convenient, small-area materials can be tested, and the application scenes of testing are increased.

Description

Technical Field

[0001] This utility model relates to the field of material resistance testing equipment, specifically a concentric circular weight. Background Technology

[0002] An impedance tester is an instrument used to measure the impedance characteristics of electronic components, materials, or systems. It is widely used in fields such as electronic engineering, biomedicine, and materials science.

[0003] Impedance testers use electrodes, probes, probes, and weights. In existing technologies, the electrodes and weights are all single electrodes. During the test, an impedance tester needs to use two single electrode weights. When testing small material surfaces, two single electrode weights are not enough to perform the test because the material area is insufficient. Therefore, the test weight electrodes in existing technologies occupy a large area during testing, which limits the application scenarios and makes them inconvenient to carry. Summary of the Invention

[0004] (a) Technical problems to be solved.

[0005] To address the shortcomings of existing technologies, this utility model provides a concentric circle weight, which solves the problems mentioned in the background art, such as limited application scenarios and inconvenience in carrying.

[0006] (ii) Technical solution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concentric circular weight, comprising a shell, characterized in that: the weight further comprises an insulator, an internal conductor, a fixing screw, an internal electrode port, and an external electrode port; one end of the shell is an open cylindrical shape; the insulator is installed inside the shell and fixed by screws and has a through hole; the internal conductor is directly or indirectly fixedly connected to the insulator by the fixing screw; the shell has an internal electrode port and an external electrode port at the end away from the opening; the internal electrode port is connected to a conductive wire; the conductive wire passes through the through hole in the insulator and is electrically connected to the internal conductor; the outward end face of the internal conductor is on the same horizontal plane as the end face of the opening end of the shell; and the external electrode port is electrically connected to the shell.

[0008] Preferably, the counterweight further includes an internal conductive plate and a spring, the internal conductive plate being fixedly connected to an insulator, and the spring being sleeved on a fixing screw and located between the internal conductive plate and the internal conductive body.

[0009] Preferably, the internal conductor has a groove at its center, and one end of the spring is placed in the groove. The depth of the groove is less than the length of the spring. In the normal state, the internal conductive plate and the internal conductor are separated, and in the compressed state, the internal conductive plate and the internal conductor are in complete contact.

[0010] Preferably, the inner conductive plate has a groove at its center, and the other end of the spring is placed in the groove. The sum of the depths of the grooves in the inner conductive plate and the inner conductive body is less than the length of the spring.

[0011] Preferably, conductive rubber is attached to both the opening end of the housing and the outward-facing end of the internal conductor.

[0012] Preferably, the shell, the internal conductive plate, and the internal conductor are made of conductive metal.

[0013] Preferably, the other end of the housing is bonded with conductive rubber for use with a single electrode.

[0014] (iii) Beneficial effects.

[0015] This utility model provides a concentric circle weight, which has the following advantages: by adding an internal conductor, it realizes one weight and two electrodes, so only one weight is needed to complete the test, saving costs, reducing weight and making it easy to carry. It can also be used to test small-area materials, increasing the application scenarios of the test. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention.

[0017] Figure 2 This is a partial view of the insulator, the internal conductive plate, and the internal conductive body.

[0018] Figure 3 Diagram of the internal conductor structure

[0019] In the diagram: 1. Housing; 2. Insulator; 3. Internal conductor; 4. Fixing screw; 5. Internal electrode port; 6. External electrode port; 7. Internal conductive plate; 8. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see Figure 1This utility model provides a concentric circular weight, comprising a shell, characterized in that: the weight further comprises an insulator, an internal conductor, a fixing screw, an internal electrode port, and an external electrode port; one end of the shell is an open cylindrical shape; the insulator is installed inside the shell and fixed by screws and has a through hole; the internal conductor is directly or indirectly fixedly connected to the insulator by the fixing screw; the shell has an internal electrode port and an external electrode port at the end away from the opening; the internal electrode port is connected to a conductive wire, which passes through the through hole in the insulator and is electrically connected to the internal conductor; the outward end face of the internal conductor is on the same horizontal plane as the end face of the open end of the shell; the external electrode port is electrically connected to the shell; the materials of the shell, the internal conductive plate, and the internal conductor are conductive metals, preferably stainless steel. Example 2

[0022] Please see Figure 1 Based on Embodiment 1, the hammer also includes an internal conductive plate and a spring. The internal conductive plate is fixedly connected to the insulator, and the spring is sleeved on the fixing screw and located between the internal conductive plate and the internal conductive body.

[0023] The internal conductor has a groove in the center, and one end of the spring is placed in the groove. The depth of the groove is less than the length of the spring. Under normal conditions, the internal conductive plate and the internal conductor are separated. Under compressed conditions, the internal conductive plate and the internal conductor are in complete contact. Example 3

[0024] Please see Figure 1 Based on Embodiment 2, the internal conductive plate has a groove at its center, and the other end of the spring is placed in the groove. The sum of the depths of the grooves on the internal conductive plate and the internal conductor is less than the length of the spring. Conductive rubber is adhered to one end of the housing opening and the outward end of the internal conductor, and conductive rubber is also adhered to the other end of the housing for use with a single electrode.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concentric circular weight, comprising a housing (1), characterized in that: The hammer also includes an insulator (2), an internal conductor (3), a fixing screw (4), an internal electrode port (5), and an external electrode port (6). One end of the housing (1) is an open cylindrical shape. The insulator (2) is installed inside the housing (1) and fixed by screws and has a through hole. The internal conductor (3) is directly or indirectly fixed to the insulator (2) by the fixing screw (4). The housing (1) has an internal electrode port (5) and an external electrode port (6) at the end away from the opening. The internal electrode port (5) is connected to a conductive wire. The conductive wire passes through the through hole on the insulator (2) and is electrically connected to the internal conductor (3). The outward end face of the internal conductor (3) is on the same horizontal plane as the end face of the opening end of the housing (1). The external electrode port (6) is electrically connected to the housing (1).

2. A concentric circle weight according to claim 1, wherein: The hammer also includes an internal conductive plate (7) and a spring (8). The internal conductive plate (7) is fixedly connected to the insulator (2), and the spring (8) is sleeved on the fixing screw (4) and located between the internal conductive plate (7) and the internal conductive body.

3. A concentric weighted bob as claimed in claim 2, wherein: The internal conductor (3) has a groove in the center, and one end of the spring (8) is placed in the groove. The depth of the groove is less than the length of the spring. Under normal conditions, the internal conductive plate (7) and the internal conductor (3) are separated. Under compressed conditions, the internal conductive plate (7) and the internal conductor (3) are in complete contact.

4. A concentric weighted bob as claimed in claim 3, wherein: The inner conductive plate (7) has a groove in the center, and the other end of the spring (8) is placed in the groove. The sum of the depths of the groove in the inner conductive plate (7) and the groove in the inner conductor (3) is less than the length of the spring.

5. A concentric weight according to claim 1 or 2 or 3 or 4 wherein: Conductive rubber is attached to the open end of the shell (1) and the outward end of the internal conductor (3).

6. A concentric weighted bob as claimed in claim 5, wherein: The shell (1), the internal conductive plate (7), and the internal conductor (3) are made of conductive metal.

7. A concentric weighted bob as claimed in claim 6, characterised in that: The other end of the housing (1) is bonded with conductive rubber for use as a single electrode.

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