Rapid resistance measuring device for carbon material

Abstract

The utility model belongs to the technical field of resistance measurement of carbon materials, particularly relates to a rapid resistance measurement device for carbon materials, and aims to solve the problem that results are affected by sample deviation or poor contact due to the fact that a test resistor is manually propped or propped by a needle head with thread adjustment in the prior art. Comprising a device body, a cavity for containing a carbon material is formed in the device body, one end of the device body is a fixed end, the other end of the device body is a detachable end, an elastic needle is installed on the fixed end, and an inlet for placing a carbon material sample is reserved in the detachable end of the device body. A first needle head is installed on the detachable end head, a second needle head and a third needle head which are in contact with a sample are installed on the side portion of the device body, the problems that the carbon material sample and the needle heads are in poor contact and the carbon material sample deviates can be effectively solved, and the device is simple, convenient and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon material resistance measurement, in particular to a fast resistance measurement device for carbon materials. Background Art

[0002] The resistivity of carbon products is a key indicator for evaluating electrodes, heating components, and other carbon products. It determines the product's factory grade and is also a crucial parameter for controlling and monitoring the manufacturing process. For example, during electric arc furnace steelmaking, if the resistance at the junction between the electrode body and the joint is too high, then when power is applied, the conductivity of this area will be low, causing arcing and burnout. Therefore, measuring product resistance is of great significance in practical applications.

[0003] Currently, resistance testing devices use either manual positioning of the needle to clamp the sample, or simply use two threaded adjustment needles to hold the sample. These two methods can cause sample deviation or poor contact, thus affecting the results. Utility Model Content

[0004] The utility model provides a rapid resistance measuring device for carbon materials, which solves the shortcomings in the prior art that manual resistance or use of a threaded adjustable needle to resist the test resistor will cause sample deviation or poor contact, thereby affecting the result.

[0005] The utility model provides the following technical solutions:

[0006] A rapid resistance measuring device for carbon materials includes a device body, a cavity for accommodating the carbon material is provided inside the device body, one end of the device body is a fixed end head, and the other end is a detachable end head, an elastic needle head is installed on the fixed end head, the device body has an entrance for inserting a carbon material sample at the detachable end head, a first needle head is installed on the detachable end head, and a second needle head and a third needle head that contact the sample are installed on the side of the device body.

[0007] As a further improvement of the above solution.

[0008] Preferably, the device body is in the shape of a circular tube, and a circular connecting port is provided at the end of the device body, and the circular connecting port is connected to the detachable end head through a thread.

[0009] Preferably, a plurality of limit bars are installed in the main body of the device, and the cross-sectional shape enclosed by the limit bars is adapted to the cross-sectional shape of the carbon material sample.

[0010] Preferably, the device body is in the shape of a square tube, the cross-sectional shape of the device body is adapted to the cross-sectional shape of the carbon material sample, a snap-fit ​​structure is provided at the end of the device body, and the detachable end head is detachably connected to the end of the device body through the snap-fit ​​structure.

[0011] Preferably, the second needle and the third needle are directly mounted on the device body.

[0012] Preferably, a mounting opening is provided on the side of the device body, a detachable cover is installed in the mounting opening, and the second needle and the third needle are installed on the cover.

[0013] Preferably, the first needle, the second needle and the third needle each comprise a main rod, one end of the main rod is provided with an abutment head for full contact with the sample, and the other end of the main rod is connected to a conductive sheet.

[0014] Preferably, the first needle is fixedly connected to the detachable end, the second needle and the third needle are fixedly connected to the device body, and the abutting head is an elastic conductive sheet.

[0015] Preferably, the first needle is connected to the detachable end via a threaded rotation connection, the second needle and the third needle are connected to the device body via a threaded rotation connection, and an operating handle is also installed at the other end of the main rod.

[0016] It should be understood that the above general description and the following detailed description are merely illustrative and do not limit the present invention.

[0017] In the utility model, the carbon material sample can be limited by the device body. After the cover body and the detachable end head are connected to the device body, the elastic needle, the first needle, the second needle and the third needle can be fully in contact with the sample, which can effectively solve the problems of poor contact between the carbon material sample and the needle and the deviation of the carbon material sample, and is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a rapid resistance measuring device for carbon materials provided in Example 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a rapid resistance measuring device for carbon materials provided in Example 2 of the present utility model.

[0020] Reference numerals:

[0021] 1. Device body; 2. Cover; 3. Second needle; 4. Third needle; 5. Limiting strip; 6. Inlet; 7. Removable end; 8. First needle. DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0025] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0026] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0027] Example 1, reference Figure 1A rapid resistance measuring device for carbon materials includes a device body 1, which is in the shape of a circular tube. A circular connecting port is provided at the end of the device body 1. The circular connecting port is connected to a detachable end head 7 by a thread. A plurality of limit bars 5 are installed in the device body 1. The cross-sectional shape enclosed by the limit bars 5 is adapted to the cross-sectional shape of the carbon material sample. A cavity for accommodating the carbon material is provided inside the device body 1. One end of the device body 1 is a fixed end head and the other end is a detachable end head 7. An elastic needle is installed on the fixed end head. The device body 1 has an inlet 6 for inserting the carbon material sample at the detachable end head 7. A first needle 8 is installed on the head 7, and a second needle 3 and a third needle 4 in contact with the sample are installed on the side of the device body 1. A mounting port is opened on the side of the device body 1, and a detachable cover body 2 is installed in the mounting port. The second needle 3 and the third needle 4 are installed on the cover body 2. The first needle 8 is fixedly connected to the detachable end 7, and the second needle 3 and the third needle 4 are fixedly connected to the device body 1. The abutment head is an elastic conductive sheet, or the first needle 8 is connected to the detachable end 7 by a threaded rotation, and the second needle 3 and the third needle 4 are connected to the device body 1 by a threaded rotation. An operating handle is also installed at the other end of the main rod.

[0028] Example 2, reference Figure 2 A rapid resistance measuring device for carbon materials includes a device body 1, the device body 1 is provided with a cavity for accommodating the carbon material, the device body 1 is in the shape of a square tube, the cross-sectional shape of the device body 1 is adapted to the cross-sectional shape of the carbon material sample, a snap-fit ​​structure is provided at the end of the device body 1, and a detachable end 7 is detachably connected to the end of the device body 1 via the snap-fit ​​structure; one end of the device body 1 is a fixed end, and the other end is a detachable end 7, an elastic needle is installed on the fixed end, the device body 1 has an inlet 6 for inserting the carbon material sample at the detachable end 7, a first needle 8 is installed on the detachable end 7, and a second needle 3 and a third needle 4 are installed on the side of the device body 1 to contact the sample;

[0029] The second needle 3 and the third needle 4 are directly mounted on the device body 1 , or a mounting opening may be opened on the side of the device body 1 , in which a detachable cover 2 is mounted, and the second needle 3 and the third needle 4 are mounted on the cover 2 .

[0030] The second needle 3 and the third needle 4 are fixedly connected to the device body 1, the abutment head is an elastic conductive sheet, or the first needle 8 is connected to the detachable end head 7 by a threaded rotation, the second needle 3 and the third needle 4 are connected to the device body 1 by a threaded rotation, and an operating handle is also installed at the other end of the main rod.

[0031] The working principle of the present application is as follows: the carbon material is limited by the device main body 1 and the cavity inside the device main body 1, one end of the carbon material is against the elastic needle head of the fixed end head, and the other end is installed with a detachable end head 7, and a first needle head 8 is installed on the detachable end head 7, the first needle head 8 is an elastic needle head or the first needle head 8 is connected to the detachable end head 7 by a thread, and by installing the detachable end head 7, the end of the carbon material is limited, and the first needle head 8 can also be conveniently connected to the end of the carbon material; a second needle head 3 and a third needle head 4 are installed on one side of the device main body 1, and after the carbon material is placed in the device main body 1, it can be conveniently contacted with the second needle head 3 and the third needle head 4, and the second needle head 3 and the third needle head 4 are installed on the cover plate, and the cover plate is flipped over and fastened with the device main body 1 to improve the stability of the contact between the second needle head 3 and the third needle head 4 and the carbon material.

[0032] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The embodiments of the present utility model and the features of the embodiments can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present utility model shall be based on the scope of protection of the claims.

Claims

1. A rapid resistance measuring device for carbon materials, characterized in that: The device comprises a main body, wherein a cavity for accommodating carbon material is provided inside the main body, one end of the main body is a fixed end and the other end is a detachable end, an elastic needle is installed on the fixed end, the main body of the device has an entrance at the detachable end for inserting a carbon material sample, a first needle is installed on the detachable end, and a second needle and a third needle in contact with the sample are installed on the side of the main body of the device.

2. A rapid resistance measuring device for carbon materials according to claim 1, characterized in that: The device body is in the shape of a circular tube, and a circular connecting port is provided at the end of the device body. The circular connecting port is connected to the detachable end head through a thread.

3. A rapid resistance measuring device for carbon materials according to claim 2, characterized in that: A plurality of limiting bars are installed in the main body of the device, and the cross-sectional shape enclosed by the limiting bars is adapted to the cross-sectional shape of the carbon material sample.

4. A rapid resistance measuring device for carbon materials according to claim 1, characterized in that: The device body is in the shape of a square tube, and the cross-sectional shape of the device body is adapted to the cross-sectional shape of the carbon material sample. A snap-fit ​​structure is provided at the end of the device body, and the detachable end head is detachably connected to the end of the device body through the snap-fit ​​structure.

5. A rapid resistance measuring device for carbon materials according to claim 1, characterized in that: The second needle and the third needle are directly mounted on the device body.

6. A rapid resistance measuring device for carbon materials according to claim 1, characterized in that: A mounting opening is provided on the side of the device body, a detachable cover body is installed in the mounting opening, and the second needle head and the third needle head are installed on the cover body.

7. A rapid resistance measuring device for carbon materials according to claim 5 or 6, characterized in that: The first needle, the second needle and the third needle all include a main rod body, one end of the main rod body is equipped with an abutment head that is in full contact with the sample, and the other end of the main rod body is connected to a conductive sheet.

8. A rapid resistance measuring device for carbon materials according to claim 7, characterized in that: The first needle is fixedly connected to the detachable end, the second needle and the third needle are fixedly connected to the device body, and the abutting head is an elastic conductive sheet.

9. A rapid resistance measuring device for carbon materials according to claim 7, characterized in that: The first needle is rotatably connected to the detachable end via a thread, the second needle and the third needle are rotatably connected to the device body via a thread, and an operating handle is further installed at the other end of the main rod.

Images