Resistance testing device

By designing a resistance test device with rotating components and conductive materials, the problem of inaccurate resistance testing in the prior art is solved, stable rotation and accurate measurement of the device are achieved, and testing accuracy and efficiency are improved.

CN223180294UActive Publication Date: 2025-08-01ZHUHAI ZHENGGE DIGITAL TECH CO LTD
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Patent Information

Application Number
CN202421369454.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-08-01
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

The existing resistance testing device cannot accurately test the resistance coefficient of the charging roller in the working state, which affects the testing accuracy and efficiency of the charging roller and other devices.

Method used

A resistance testing device including a base, a rotating component and a test component is designed. By rotating the component, the device is driven to rotate, and the device is stably clamped and rotated at a constant speed using connecting blocks and rollers made of conductive materials. The tester made of conductive materials is accurately measured.

Benefits of technology

It improves the accuracy and testing efficiency of resistance testing, ensures that the device does not fall off during the test, enhances the operating stability and compatibility of the device, reduces the impact of vibration, and improves the convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a resistance testing device which comprises a base, a rotating assembly and a testing assembly. The rotating assembly comprises a roller and a driving device, one end of the roller is movably connected with the base, and the other end of the roller is connected with the driving end of the driving device; the testing assembly comprises a support and a tester, the support comprises a connecting rod and a connecting block, the connecting rod and the roller are arranged in parallel, the connecting block is movably connected to the connecting rod, and a connecting hole for connecting devices is formed in the connecting block; one end of the tester is connected with the connecting block, and the other end of the tester is connected with the roller. According to the resistance testing device, the base and the rotating assembly are arranged, the rotating assembly can stably drive the device on the support to rotate, the tester accurately measures the resistance coefficient of the device under the rotating condition, and the measurement accuracy of the resistance testing device is guaranteed; by arranging the connecting blocks and the rollers, the device can be accurately clamped between the connecting blocks and is driven by the rollers to rotate at a constant speed, so that the operation stability of the resistance testing device is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of resistance testing, in particular to a resistance testing device. Background Art

[0002] Modern office equipment all has electrophotographic imaging devices, such as laser printers, digital copiers, plain paper fax machines, and laser multifunction machines, etc. Such imaging devices all go through six processes: charging, exposure, development, transfer, fixing, and cleaning. During operation, the surface of the photoconductive drum is charged with a uniform charge to obtain a certain surface potential, and then it is exposed according to the graphic and image information to form an electrostatic latent image. After being developed by a developer, the latent image is transformed into a visible toner image. Then, through a transfer device, the toner is transferred onto the printing paper or other media. Finally, through a fixing device for heating and pressing for hot melting, the toner melts and then solidifies the characters and images on the paper. Therefore, the quality of charging directly affects the quality of printed products. Currently, as a new type of environmental protection charging method, the charging roller can effectively reduce the generation of ozone, and has the advantages of uniform charging and low noise, and is widely used. However, the existing resistance testing devices cannot accurately test the resistance coefficient of the charging roller under the working state, which affects the testing accuracy and testing efficiency of devices such as the charging roller. Summary of the Invention

[0003] To solve the above problems, the purpose of the utility model is to provide a resistance testing device, which can improve the accuracy and testing efficiency of resistance testing of devices by driving the devices to rotate.

[0004] The technical solution adopted by the utility model to solve its problems is:

[0005] A resistance testing device includes a base, a rotating assembly, and a testing assembly; the rotating assembly and the testing assembly are fixed on the base; the rotating assembly includes a roller and a driving device, one end of the roller is movably connected to the base, and the other end of the roller is connected to the driving end of the driving device; the testing assembly includes a bracket and a tester, the bracket includes a connecting rod and a connecting block, the connecting rod is arranged parallel to the roller, the connecting block is movably connected to the connecting rod, and a connecting hole for connecting a device is provided on the connecting block; one end of the tester is connected to the connecting block, and the other end of the tester is connected to the side of the roller away from the connecting block; a control switch is provided on the base, and both the driving device and the tester are electrically connected to the control switch.

[0006] The above-mentioned resistance testing device has at least the following beneficial effects: By setting the base and the rotating assembly, the rotating assembly can stably drive the device on the bracket to rotate, and the tester can accurately measure the resistance coefficient of the device under the rotating condition, ensuring the measurement accuracy of the resistance testing device; By setting the connecting blocks and the rollers, the device can be accurately clamped between the connecting blocks and rotate uniformly under the drive of the rollers, avoiding the situation of the device falling off during the testing process and improving the operation stability of the resistance testing device.

[0007] Furthermore, the number of the connecting blocks is two, and the two connecting blocks are slidably connected to the connecting rod. By setting two connecting blocks, the device to be tested can be stably fixed between the two connecting blocks, ensuring the operation stability of the resistance testing device.

[0008] Furthermore, the connecting rod is movably connected to the base through a slider. By setting the slider, the connection flexibility and stability between the connecting rod and the base are improved, ensuring the integrity of the resistance testing device.

[0009] Furthermore, a card slot is provided on the base, and the connecting rod is connected to the base by inserting the slider into the card slot. By setting the card slot, it is convenient to adjust the height of the connecting rod according to the size of the device to ensure that the roller fits and drives the device to rotate, improving the compatibility of the resistance testing device. [[ID=eleven]]

[0010] Furthermore, the number of the connecting rods is two, and the two connecting rods are arranged in parallel. This structure ensures the stability of the bracket and avoids the deformation of the connecting rod resulting in the device not fitting the roller, affecting the testing accuracy of the resistance testing device.

[0011] Furthermore, the tester is connected to the connecting block and the roller through wires respectively. By setting the wires, the connection stability between the tester and the connecting block, and between the tester and the roller is improved, and the maintenance convenience of the resistance testing device is also improved.

[0012] Furthermore, both the connecting block and the roller are made of conductive materials. Since both the connecting block and the roller are made of conductive materials, it is convenient for the tester to accurately measure the resistance coefficient of the device during rotation, improving the testing accuracy of the resistance testing device.

[0013] Furthermore, the tester is located above the driving device, and a buffer block is provided between the tester and the driving device. By setting the buffer block, the vibration brought by the driving device to the tester is effectively reduced, improving the testing accuracy of the resistance testing device.

[0014] Further, an external power cord is also provided on the base, and the control switch is electrically connected to the external power cord. By providing the external power cord, the power supply stability of the control switch and the tester is ensured, and the compatibility and stability of the resistance testing device are improved.

[0015] Further, an indicator light is also provided on the base, and the indicator light is electrically connected to the control switch. By providing the indicator light, it is convenient for the tester to visually observe the working state of the resistance testing device and improve the usability of the resistance testing device.

[0016] The beneficial effects of the above resistance testing device are as follows: By providing the base and the rotating assembly, the rotating assembly can stably drive the devices on the bracket to rotate, and the tester can accurately measure the resistance coefficient of the devices under the rotating condition, ensuring the measurement accuracy of the resistance testing device; By providing the connecting blocks and the rollers, the devices can be accurately clamped between the connecting blocks and rotate uniformly under the drive of the rollers, avoiding the situation of device detachment during the testing process and improving the operation stability of the resistance testing device; By providing the slider, the connection flexibility and stability between the connecting rod and the base are improved, ensuring the integrity of the resistance testing device; By providing the card slots, it is convenient to adjust the height of the connecting rod according to the size of the device to ensure that the rollers are in contact with and drive the device to rotate, improving the compatibility of the resistance testing device; By providing the buffer blocks, the vibration brought by the driving device to the tester is effectively reduced, improving the testing accuracy of the resistance testing device.

[0017] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0018] The above and additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is a schematic structural diagram of a resistance testing device according to an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a resistance testing device according to an embodiment of the present invention from another angle. Detailed Embodiments

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0022] Refer toFigure 1 and Figure 2 , an embodiment of the present utility model provides a resistance testing device, which includes a base 100, a rotating assembly 200 and a testing assembly 300; the rotating assembly 200 and the testing assembly 300 are fixed on the base 100; the rotating assembly 200 includes a roller 210 and a driving device 220, one end of the roller 210 is movably connected to the base 100, and the other end of the roller 210 is connected to the driving end of the driving device 220; the testing assembly 300 includes a bracket 310 and a tester 320, the bracket 310 includes a connecting rod 311 and a connecting block 312, the connecting rod 311 is arranged parallel to the roller 210, the connecting block 312 is movably connected to the connecting rod 311, and a connecting hole 313 for connecting the device 400 is provided on the connecting block 312; one end of the tester 320 is connected to the connecting block 312, and the other end of the tester 320 is connected to the side of the roller 210 away from the connecting block 312; a control switch 110 is provided on the base 100, and both the driving device 220 and the tester 320 are electrically connected to the control switch 110.

[0023] By providing the base 100 and the rotating assembly 200, the rotating assembly 200 can stably drive the device 400 on the bracket 310 to rotate, and the tester 320 can accurately measure the resistance coefficient of the device 400 under the rotating condition, ensuring the measurement accuracy of the resistance testing device; by providing the connecting block 312 and the roller 210, the device 400 can be accurately clamped between the connecting blocks 312 and rotate uniformly under the drive of the roller 210, avoiding the situation of the device 400 falling off during the testing process and improving the operation stability of the resistance testing device.

[0024] In another embodiment, the number of the connecting blocks 312 is two, and the two connecting blocks 312 are slidably connected to the connecting rod 311. By providing two connecting blocks 312, the device 400 to be tested can be stably fixed between the two connecting blocks 312, ensuring the operation stability of the resistance testing device. Of course, in other embodiments, in order to ensure the stability of the device 400, the number of the connecting blocks 312 can also be other numbers, such as three, which can also improve the operation stability of the resistance testing device, and is not limited here.

[0025] In another embodiment, the connecting rod 311 is movably connected to the base 100 through a slider 314. By providing the slider 314, the connection flexibility and stability between the connecting rod 311 and the base 100 are improved, ensuring the integrity of the resistance testing device.

[0026] In another embodiment, a slot 120 is provided on the base 100, and the connecting rod 311 is connected to the base 100 by inserting the slider 314 into the slot 120. By providing the slot 120, it is convenient to adjust the height of the connecting rod 311 according to the size of the device 400 to ensure that the roller 210 fits and drives the device 400 to rotate, improving the compatibility of the resistance testing device.

[0027] In another embodiment, the number of the connecting rods 311 is two, and the two connecting rods 311 are arranged in parallel. This structure ensures the stability of the bracket 310 and prevents the connecting rods 311 from deforming, which may cause the device 400 not to fit the roller 210, thus affecting the test accuracy of the resistance testing device.

[0028] In another embodiment, the tester 320 is connected to the connecting block 312 and the roller 210 through wires 330. By providing the wires 330, the connection stability between the tester 320 and the connecting block 312 and between the tester 320 and the roller 210 is improved, and the maintenance convenience of the resistance testing device is also enhanced.

[0029] In another embodiment, both the connecting block 312 and the roller 210 are made of conductive materials. Since both the connecting block 312 and the roller 210 are made of conductive materials, it is convenient for the tester 320 to accurately measure the resistance coefficient of the device 400 during rotation, thereby improving the test accuracy of the resistance testing device.

[0030] In another embodiment, the tester 320 is located above the driving device 220, and a buffer block 230 is provided between the tester 320 and the driving device 220. By providing the buffer block 230, the vibration brought by the driving device 220 to the tester 320 is effectively reduced, and the test accuracy of the resistance testing device is improved.

[0031] In another embodiment, an external power cord 130 is further provided on the base 100, and the control switch 110 is electrically connected to the external power cord 130. By providing the external power cord 130, the power supply stability of the control switch 110 and the tester 320 is ensured, and the compatibility and stability of the resistance testing device are improved.

[0032] In another embodiment, an indicator light 140 is further provided on the base 100, and the indicator light 140 is electrically connected to the control switch 110. By providing the indicator light 140, it is convenient for the test personnel to directly observe the working state of the resistance testing device, and the use convenience of the resistance testing device is improved.

[0033] The working principle of the present utility model will be further described below.

[0034] During use, according to the size of the device 400, the slider 314 is adjusted at the position of the card slot 120 to adjust the distance between the connecting block 312 and the roller 210, so as to ensure that when the device 400 is fixed in the connecting hole 313, the device 400 fits the surface of the roller 210; then the device 400 is fixed between the two connecting blocks 312 through the connecting hole 313, and the slider 314 is fixed in the card slot 120. The two test ends of the tester 320 are respectively connected to the connecting block 312 and the roller 210 through wires 330, and one end of the tester 320 is connected to the connecting block 312, and the other end of the tester 320 is connected to the side of the roller 210 away from the connecting block 312. Therefore, the tester 320 can obtain the resistivity of the device 400 in real time. Connect the external power supply through the external power cord 130 and turn on the control switch 110. After the resistance test device is powered on, the driving device 220 drives the roller 210 to rotate, and the roller 210 drives the device 400 to rotate by friction; through the wire 330, both ends of the device 400 are respectively connected to the tester 320 through the roller 210 and the connecting block 312. The resistivity of the device 400 in the rotating state can be read from the reading of the tester 320, so as to quickly judge whether the resistivity of the device 400 in the working state is within the specified range, improve the test accuracy and compatibility of the resistance test device, avoid the situation that the device 400 falls off during the test, and ensure the working stability of the resistance test device.

[0035] As can be seen from the above description, the resistance test device of the present invention can stably drive the device 400 on the bracket 310 to rotate by setting the base 100 and the rotating assembly 200, and the tester 320 accurately measures the resistivity of the device 400 in the rotating state, ensuring the measurement accuracy of the resistance test device; by setting the connecting block 312 and the roller 210, the device 400 can be accurately clamped between the connecting blocks 312 and rotate uniformly under the drive of the roller 210, avoiding the situation that the device 400 falls off during the test and improving the operation stability of the resistance test device; by setting the slider 314, the connection flexibility and stability between the connecting rod 311 and the base 100 are improved, ensuring the integrity of the resistance test device; by setting the card slot 120, it is convenient to adjust the height of the connecting rod 311 according to the size of the device 400 to ensure that the roller 210 fits and drives the device 400 to rotate, improving the compatibility of the resistance test device; by setting the buffer block 230, the vibration brought by the driving device 220 to the tester 320 is effectively reduced, improving the test accuracy of the resistance test device.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A resistance testing device, characterized in that, It includes a base, a rotating component and a testing component; the rotating component and the testing component are fixed on the base; the rotating component includes a roller and a driving device, one end of the roller is movably connected to the base, and the other end of the roller is connected to the driving end of the driving device; the testing component includes a bracket and a tester, the bracket includes a connecting rod and a connecting block, the connecting rod is arranged parallel to the roller, the connecting block is movably connected to the connecting rod, and a connecting hole for connecting a device is provided on the connecting block; one end of the tester is connected to the connecting block, and the other end of the tester is connected to the side of the roller away from the connecting block; a control switch is provided on the base, and the driving device and the tester are both electrically connected to the control switch.

2. A resistance testing device according to claim 1, wherein The number of the connecting blocks is two, and the two connecting blocks are slidably connected to the connecting rod.

3. The resistance testing device according to claim 2, wherein, The connecting rod is movably connected to the base through a slider.

4. The resistance testing device according to claim 3, wherein A clamping groove is provided on the base, and the connecting rod is connected to the base by inserting the slider into the clamping groove.

5. The resistance testing device according to claim 3, wherein, The number of the connecting rods is two, and the two connecting rods are arranged parallel to each other.

6. The resistance testing device according to claim 1, wherein The tester is connected to the connecting block and the roller through wires respectively.

7. A resistance testing device according to claim 6, characterized in that, Both the connecting block and the roller are made of conductive materials.

8. A resistance testing device according to claim 1, characterized in that, The tester is located above the driving device, and a buffer block is provided between the tester and the driving device.

9. A resistance testing device according to claim 1, characterized in that, An external power cord is also provided on the base, and the control switch is electrically connected to the external power cord.

10. A resistance testing device according to claim 9, characterized in that, An indicator light is also provided on the base, and the indicator light is electrically connected to the control switch.