Successive detection anti-static wrist strap storage box
By designing a successively-tested anti-static wristband storage box, the resistance detection of the anti-static wristband is achieved by using multi-circuit selection adjustment switch and tester, which solves the problems of irregular storage and unclear detection cycles in the existing technology, and improves the The reliability and safety of the equipment reduce costs.
Patent Information
- Application Number
- CN202420660885.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing storage and testing methods of anti-static wristbands have irregularities that lead to damage to conductivity or shortened service life. Real-time monitoring affects the positioning of the work station and is costly. The regular inspection cycle is unclear, making it difficult to detect failures in a timely manner.
Design a successively-detected anti-static wristband storage box, including storage area and detection device, and use multi-circuit selection adjustment switch and anti-static wristband tester to directly contact the detection cable through metal contacts to achieve the button and plug resistance. Test and standardize storage before each shift.
It improves the reliability of the anti-static wristband, realizes the integration of testing and storage, reduces costs, ensures the safety of flammable and explosive places, and prompts the detection results through indicator lights.
Smart Images
Figure CN222137341U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a testing and storing device. Background Art
[0002] With the development of industrial refinement, anti-static work in the working environment has become a link that people cannot ignore. As a result, a large number of anti-static products have been produced, and anti-static wristbands are one of them. Anti-static wristbands are used to discharge static electricity from the human body. They are composed of elastic bands, snap buttons, spring cords, protective resistors and plugs or clamps. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. Because it can suppress the static hazards generated by people working in static-sensitive places such as production sites for explosives and fire products and clean rooms, anti-static wristbands are often used in production workshops, pharmaceutical factories, food factories, clean workshops, electronic semiconductor device laboratories, electronic computers, electronic communication equipment, explosives manufacturing, integrated circuits and other microelectronics industries.
[0003] The principle of the anti-static wrist strap is to conduct the static electricity of the human body to the ground through the wrist strap and the grounding wire. Ensuring the electrostatic conductivity of the anti-static wrist strap is an important part of avoiding static electricity accumulation. However, due to the improper storage or use of the anti-static wrist strap, it is easy to cause the conductivity of the anti-static wrist strap to be damaged or the service life to be shortened. The anti-static wrist strap storage box that is tested successively can achieve fixed placement and standardized storage.
[0004] Secondly, in order to effectively eliminate the hazards of static electricity and ensure the effectiveness of the anti-static wrist strap, the conductivity of the anti-static wrist strap is usually tested. Currently, two testing methods are commonly used: real-time and periodic monitoring.
[0005] (1) Real-time monitoring method
[0006] Each anti-static wrist strap is equipped with a real-time grounding status monitor to monitor the conductivity of the anti-static wrist strap at any time. However, since the monitor requires an external power supply, it must always be connected to the anti-static wrist strap, which not only affects the fixed placement at the work station, but also increases the components in the anti-static wrist strap grounding loop, reducing the reliability of the anti-static wrist strap. It is not well matched to the explosion-proof electrical requirements of flammable and explosive places, and the cost is relatively high.
[0007] (2) Regular testing method
[0008] Use a wrist strap tester or resistance meter to test the grounding conductivity of each component and the entire anti-static wrist strap, but the test cycle is determined by the electrostatic hazard level of the workplace. The current standards and specifications do not have clear regulations, and there are large differences among industries, companies, and places, making it difficult to detect the failure of the anti-static wrist strap in a timely manner.
[0009] Therefore, it is very necessary to design a test and storage device that can not only effectively realize the standardized storage of anti-static wrist straps, but also timely test the conductivity of anti-static wrist straps before each shift. Summary of the invention
[0010] In order to overcome the shortcomings of the prior art, the present invention provides an anti-static wristband storage box with sequential detection, which can take into account the advantages of the real-time monitoring method and the timed detection method, avoid the disadvantages of both, properly store the anti-static wristband, effectively improve the reliability of the anti-static wristband, and achieve the effects of detection and storage.
[0011] The technical solution adopted by the present invention to solve the technical problem is: a sequentially detected anti-static wristband storage box, comprising a storage area and a detection device.
[0012] The storage part includes a plurality of groups of regularly arranged hollow squares, each group of squares can store a set of anti-static wrist straps; each group of squares is divided into two small squares, one of which is used to store the anti-static wrist strap, a columnar structure is arranged in the center of the small square, and an anti-static wrist strap inner surface test contact A and an anti-static wrist strap cable connection button test contact B are arranged on the side wall of the columnar structure; the other small square is used to store the anti-static wrist strap connection line, and a plug connection test contact C of the anti-static wrist strap grounding line and an anti-static wrist strap cable connection button test contact D are arranged on the inner side of the small square;
[0013] The detection device comprises a multi-circuit selection adjustment conversion switch and an anti-static wrist strap tester. The anti-static wrist strap tester connects test contacts AB or test contacts CD in different grids through the multi-circuit selection adjustment conversion switch.
[0014] The anti-static wrist strap cover is placed outside the cylindrical structure, and the outer diameter of the cylindrical structure is the same as the inner diameter of the anti-static wrist strap, so that the inner surface of the anti-static wrist strap is in direct contact with the test contact A, and the button is matched with the anti-static wrist strap cable to connect the button and the test contact B.
[0015] The four corners of the storage area are provided with hanging holes for hanging on the wall.
[0016] The storage area is provided with a dust cover; or a dust cover is provided at each square opening.
[0017] The present invention also comprises an indicator light, which is connected to the anti-static wrist strap tester. Once the detection result exceeds the specified limit, the indicator light flashes to give a prompt alarm.
[0018] The beneficial effects of the present invention are:
[0019] (1) The present invention is composed of a detection area and a storage area, which can realize the detection of the anti-static wrist strap before each shift, and effectively ensure the reliability of the anti-static wrist strap in flammable and explosive places.
[0020] (2) The detection area and the storage area of the present invention are an integrated structure, which is convenient for realizing the testing and storage functions at the same time.
[0021] (3) The present invention embeds the test line inside the compartment of the storage box, and uses metal contacts to directly contact the inner surface of the anti-static wrist strap to detect the resistance of the cable connection button, and detects the resistance at both ends of the anti-static wrist strap grounding wire by pressing the button and plugging the plug.
[0022] (4) The detection area of the present invention realizes the closing and opening of different small squares through a multi-loop selection adjustment switch, which can realize successive test selection.
[0023] (5) When the anti-static wrist strap is used before the operation, the operator can wear the wrist strap in the correct way and test the resistance of the anti-static wrist strap when it is worn by adjusting the conversion switch through multiple circuit selection.
[0024] (6) The detection area of the present invention is provided with a detection result display screen and indicator light, which can clearly display the detection results and provide a red light prompt when the limit value is exceeded.
[0025] (7) The present invention is provided with circular holes around the periphery and can be used to be fixed on the wall.
[0026] (8) The present invention is provided with a dust cover.
[0027] (9) The present invention has a simple structure, low cost and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of a single square storage area for an anti-static wrist strap;
[0029] Figure 2 This is a schematic diagram of the anti-static wrist strap test circuit (taking 5 groups of squares as an example);
[0030] Figure 3 This is a schematic diagram of the resistance measurement principle of a single anti-static wrist strap inner surface to the cable connection button
[0031] Figure 4 This is a schematic diagram of the test principle of a single anti-static wrist strap grounding wire
[0032] Figure 5 This is a schematic diagram of the resistance test principle when the anti-static wrist strap is worn.
[0033] Figure 6 It is a structural schematic diagram of the present invention.
[0034] Among them, 3-columnar structure, 4-anti-static wrist strap inner surface resistance test contact A, 5-anti-static wrist strap cable connection button test contact B, 6-anti-static wrist strap grounding wire plug connection test contact C, 7-anti-static wrist strap cable connection button test contact D, 8-test area, 9-alarm light, 10-multi-circuit conversion switch, 11-anti-static wrist strap tester, 12-storage grid, 13-storage area, 14-anti-static wrist strap, 15-cable connection button, 16-anti-static wrist strap grounding wire, 17-fixing hole, 18-multi-circuit selection adjustment conversion switch, 19-test result display screen, 20-test area, 21-indicator light. DETAILED DESCRIPTION
[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.
[0036] The invention provides a storage box for a sequentially tested anti-static wristband, comprising a detection device and a storage part.
[0037] In accordance with the requirements of standards and specifications, to ensure the effective use of anti-static wrist straps, it is necessary to test the cable connection button resistance on the inner surface of the anti-static wrist strap, the resistance at both ends of the anti-static wrist strap grounding wire, and the resistance of the anti-static wrist strap when worn.
[0038] The storage part includes several groups of regularly arranged hollow squares, each group of squares can respectively store a set of anti-static wrist straps; each group of squares is divided into two small squares, wherein small square 1 is the anti-static wrist strap storage part, which is mainly a columnar structure arranged in the center of the square, and an anti-static wrist strap cable connection button test contact and an anti-static wrist strap inner surface test contact are arranged on the columnar structure; small square 2 is the anti-static wrist strap connection line storage part, and two anti-static wrist strap grounding line test contacts are arranged on the opposite side of the small square (one contact is the anti-static wrist strap cable connection button test contact, and the other test contact is plug-in type, which is convenient for connection with the plug of the anti-static wrist strap grounding line), such as Figure 1 The above test contacts are also used to fix the anti-static wrist strap and the grounding wire of the anti-static wrist strap, and they should be placed in a standardized manner when stored.
[0039] The detection device includes a multi-circuit selection adjustment conversion switch and an anti-static wrist strap tester. The anti-static wrist strap tester connects the test contacts of different grids through the multi-circuit selection adjustment conversion switch. When the anti-static wrist strap and the anti-static wrist strap connecting line in the grid need to be tested, the multi-circuit selection adjustment conversion switch is rotated to the corresponding position of the grid, and the resistance value of the anti-static wrist strap and the anti-static wrist strap connecting line can be measured respectively. The test circuit is as follows Figure 2 shown.
[0040] When testing the anti-static wrist strap, the inner surface of the anti-static wrist strap in the cylindrical structure of small square 1 can be directly in contact with the test contact A (metal contact) through size design, and the button connection button of the anti-static wrist strap cable can be pressed with the test contact B through button matching. It is only necessary to close the path in small square 1 by adjusting the conversion switch through the multi-circuit selection. At this time, the reading displayed by the anti-static wrist strap tester is the resistance value of the inner surface of a single anti-static wrist strap to the cable connection button. The measurement principle is as follows: Figure 3 shown.
[0041] When testing the grounding wire of the anti-static wrist strap, the button connection button of the anti-static wrist strap cable can be pressed with the test contact D through button matching, and the plug of the anti-static wrist strap grounding wire can be plugged with the test point C through the plug interface matching. It is only necessary to close the path in the small square 2 by adjusting the conversion switch through the multi-circuit selection. At this time, the reading displayed by the anti-static wrist strap tester is the test resistance value of a single anti-static wrist strap grounding wire. The measurement principle is as follows: Figure 4 shown.
[0042] When the resistance test of the anti-static wrist strap is performed, the grounding plug of the anti-static wrist strap can be connected to the test point C through the matching of the plug interface. The anti-static wrist strap cable connection button is connected to the anti-static wrist strap through the button and worn on the operator's wrist. The operator directly touches the test contact D with his finger. It is only necessary to close the path in the small square 2 by adjusting the conversion switch through the multi-circuit selection. At this time, the reading displayed by the anti-static wrist strap tester is the test resistance value of a single anti-static wrist strap connection line. The measurement principle is as follows Figure 5 shown.
[0043] If the test result exceeds the specified limit during the above test process, the anti-static wrist strap tester will flash a red light to give an alarm.
[0044] The four corners of the storage area are provided with hanging holes for hanging on the wall.
[0045] The storage area is provided with a dust cover; or a dust cover is provided at each square opening.
[0046] Embodiments of the present invention include Figure 6 As shown, it is composed of a detection area and a storage area, which is an integrated structure, so that the testing and storage functions can be realized at the same time. The test line is built into the compartment of the storage device, and the test contacts and connection holes are used to detect the resistance of the cable connection button and the resistance of the two ends of the anti-static wristband on the inner surface of the anti-static wristband. When the anti-static wristband is used before the operation, the operator can wear the wristband in the correct way, select the test path through the multi-circuit selection and adjustment conversion switch, and realize the resistance test of the anti-static wristband in the corresponding storage grid when it is worn.
[0047] The anti-static wrist strap storage box (length × width × height = 36 × 32 × 6 (cm)) is tested successively, and the detection area (length × width = 16 × 12 (cm)) has a built-in anti-static wrist strap detector. According to the storage grid, 5 groups of grid positions are set. The columnar structure set in each group of grids is used to realize the resistance detection of the cable connection button on the inner surface of the anti-static wrist strap. The button press and connection holes set in the small grid are used to realize the resistance detection of the anti-static wrist strap at both ends of the anti-static wrist strap. When the anti-static wrist strap is used before the operation, the operator wears the wrist strap in the correct way, connects the cable connection button, and selects the test path through the multi-circuit selection and adjustment conversion switch to realize the resistance test of the anti-static wrist strap in the corresponding storage grid when it is worn. The test result is displayed on the display screen, and the abnormal test indicator light is red.
[0048] The anti-static wrist strap storage box is equipped with a dust cover. An anti-static wrist strap and an anti-static wrist strap grounding wire are placed in each group of grids to achieve standardized storage of the anti-static wrist strap.
[0049] In addition, there are fixing holes at the four corners of the anti-static wrist strap storage box, which can be placed on the workbench or fixed on the wall according to the conditions of the workplace.
[0050] According to the above embodiments, the present invention can be well implemented.
Claims
1. A sequentially detected anti-static wristband storage box, comprising a storage area and a detection device, characterized in that: The storage area includes several groups of regularly arranged hollow squares, each group of squares can respectively store a set of anti-static wrist straps; each group of squares is divided into two small squares, one of which is used to store the anti-static wrist strap, a columnar structure is arranged in the center of the small square, and the anti-static wrist strap inner surface test contact A and the anti-static wrist strap cable connection button test contact B are arranged on the side wall of the columnar structure; the other small square is used to store the anti-static wrist strap connection line, and the inner side of the small square is provided with the plug connection test contact C of the anti-static wrist strap grounding wire and the anti-static wrist strap cable connection button test contact D; the detection device includes a multi-loop selection adjustment conversion switch and an anti-static wrist strap tester, and the anti-static wrist strap tester is connected to the test contacts AB or the test contacts CD of different squares through the multi-loop selection adjustment conversion switch.
2. The anti-static wristband storage box for sequential detection according to claim 1, characterized in that: The anti-static wrist strap cover is placed outside the cylindrical structure, and the outer diameter of the cylindrical structure is the same as the inner diameter of the anti-static wrist strap, so that the inner surface of the anti-static wrist strap is in direct contact with the test contact A, and the button is matched with the anti-static wrist strap cable to connect the button and the test contact B.
3. The anti-static wristband storage box for sequential detection according to claim 1, characterized in that: The four corners of the storage area are provided with hanging holes for hanging on the wall.
4. The anti-static wristband storage box for sequential detection according to claim 1, characterized in that: The storage area is provided with a dust cover; or a dust cover is provided at each square opening.
5. The anti-static wristband storage box for sequential detection according to claim 1, characterized in that: It also includes an indicator light, which is connected to the anti-static wrist strap tester. Once the test result exceeds the specified limit, the indicator light flashes to give an alarm.