Static elimination equipment
By using static electricity elimination equipment at the entrance of the chemical area, and employing a spacer base and a microcontroller-based timing alarm mechanism, the system ensures that staff perform static electricity elimination as required, thus solving the problem of lack of supervision of static electricity elimination equipment in the chemical industry and improving safety and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SATELLITE PETRO CHEM CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-05-05
AI Technical Summary
Existing static electricity elimination equipment lacks an effective reminder and supervision mechanism in the chemical industry, which often leads to workers failing to perform static electricity elimination operations as required when entering hazardous areas due to negligence or inconvenience in operation, resulting in the continuous accumulation of potential static electricity risks.
An electrostatic discharge device was designed, including a human body electrostatic discharge device, a placeholder base, a microcontroller, and related switches and alarms. The placeholder base occupies the entrance space, ensuring that staff must step on the pressure plate and touch the ball to discharge static electricity. The microcontroller times the event and activates an audible and visual alarm to remind staff if they do not operate according to the regulations.
It enables the supervision and reminder of static electricity elimination operations for workers, improves the safety of operations in hazardous chemical areas, avoids false alarms, and enhances the accuracy and reliability of the safety protection system.
Smart Images

Figure CN224193936U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of static electricity elimination technology, and in particular to a static electricity elimination device. Background Technology
[0002] In the chemical production field, safety accidents caused by static electricity are common because most chemical raw materials and products are flammable and explosive. Although the energy of the electric spark generated by static electricity is small, in hazardous chemical areas filled with flammable and explosive gases, vapors, or dust, it is enough to become a trigger for fires or even explosions, posing a serious threat to personnel safety, company property, and the surrounding environment.
[0003] Currently, although the chemical industry has widely recognized the hazards of static electricity and has adopted a series of static electricity elimination measures, existing static electricity elimination equipment and processes still have many problems that urgently need to be addressed. The main issue is that some static electricity elimination equipment is poorly positioned or lacks a mandatory guidance mechanism, leading to workers often failing to perform static electricity elimination operations as required when entering hazardous areas due to negligence or operational inconvenience. The lack of effective reminders and supervision mechanisms prevents the timely detection and correction of such violations, resulting in the continuous accumulation of potential static electricity risks. Utility Model Content
[0004] This utility model relates to an electrostatic eliminator that solves the problem of the lack of effective reminder and monitoring mechanisms in existing electrostatic eliminators.
[0005] This utility model provides a static electricity elimination device, specifically including: a human body static electricity release device. A circular plate is fixedly installed on the upright of the human body static electricity release device adjacent to the lower side of the touch ball. The top surface of the circular plate has two limiting insertion holes arranged in a ring array, penetrating its bottom surface. A cylinder is inserted around the touch ball of the human body static electricity release device. The inner diameter of the cylinder is larger than the diameter of the touch ball. A limiting rod is fixedly installed on the bottom surface of the cylinder relative to the two limiting insertion holes. The two limiting rods slide and engage with the two limiting insertion holes respectively. A base plate is fixedly installed on the bottom surface of each of the two limiting rods. The top surfaces of the two base plates are fixedly connected to the bottom surface of the circular plate by a spring return member. An annular rubber sheet is fixedly installed on the inner circumference of the cylinder adjacent to the top opening. In its natural state, the annular rubber sheet is higher than the touch ball.
[0006] Furthermore, a set of tactile switches is fixedly installed on the top surface of the circular plate; a mating pressure plate is fixedly installed on the inner circumferential surface of the cylinder adjacent to the bottom opening, and the mating pressure plate corresponds to the position of the tactile switches; when the bottom end of the annular rubber sheet contacts the touch ball, the spring reset member is in a stretched state, and the bottom end of the mating pressure plate contacts the button end of the tactile switch, at which time the tactile switch is in a pressed start state.
[0007] Furthermore, a rectangular block-shaped base is fixedly installed on the bottom end of the stand of the human body static electricity release device, and the human body static electricity release device is located on the left adjacent edge of the top surface of the base. A storage slot is opened on both the left and right sides of the top surface of the human body static electricity release device, and a rectangular plate-shaped pressing plate is provided directly above the human body static electricity release device. A spring support is fixedly installed on the bottom end of the pressing plate adjacent to the four corners of its four edges. The four spring supports are fixedly connected to the bottom surface of the inner end of the two storage slots respectively. In the natural state, the bottom end of the pressing plate is higher than the top surface of the base.
[0008] Furthermore, the top surface of the occupant base has an insertion opening extending through its bottom surface. A sensing groove is formed on the left side of the inner end of the insertion opening, and a set of proximity switches is fixedly installed on the left side of the inner end of the sensing groove. A metal mating block, capable of engaging with the proximity switches, is fixedly installed on the bottom surface of the foot plate relative to the insertion opening. In its natural state, the metal mating block is inserted into the insertion opening, but at this time, the metal mating block is higher than the sensing groove and is not within the sensing range of the proximity switch. When the bottom surface of the foot plate contacts the top surface of the occupant base, the spring support is compressed, and the metal mating block corresponds to the sensing groove, placing it within the sensing range of the proximity switch.
[0009] Furthermore, the spacer base is equipped with a microcontroller and a timing module and a battery electrically connected to it. The timing module has a timing value of five seconds. An audible and visual alarm and a power switch, both electrically connected to the microcontroller, are installed on the top surface of the spacer base. A tactile switch and a proximity switch are both electrically connected to the microcontroller. When the proximity switch senses a metal mating block, it sends a feedback signal to the microcontroller, which then controls the timing module to start. When the tactile switch is in the pressed-on state, it sends a feedback signal to the microcontroller, which then controls the timing module to stop. When the timing module's timing value is reached, it sends a feedback signal to the microcontroller, which then controls the audible and visual alarm to start.
[0010] This invention provides a static electricity elimination device, which has the following beneficial effects:
[0011] This utility model occupies space at the entrance of hazardous areas in chemical plants using a spacer base. This forces workers preparing to enter the hazardous chemical area to step on the pressure plate, simultaneously triggering a proximity switch and a metal-fitting plug to activate a timing module. Based on the timing module's count, it determines whether the personnel have performed the required static electricity elimination procedure. If not, upon reaching the designated time, it immediately activates an audible and visual alarm to warn the personnel who have not followed the procedure and remind them to complete the static electricity elimination operation as soon as possible, thus ensuring the safety of operations in hazardous chemical areas.
[0012] This utility model achieves semi-enclosed protection for the touch ball of the electrostatic discharge device using a cylindrical cylinder and an annular rubber sheet. This prevents workers from directly bypassing the cylinder and rubber sheet to reach the touch ball; they can only make contact by contacting the annular rubber sheet and applying downward pressure. Based on this downward pressure design, the cylinder moves downward simultaneously upon contact with the touch ball, thereby facilitating the pressing of the pressure plate and the tactile switch. This feedback signal shuts down the timing module. This design not only ensures effective contact with the touch ball but also provides a reliable basis for determining whether workers have performed the electrostatic discharge operation as required, avoiding false alarms and further improving the accuracy and reliability of the entire safety protection system. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0014] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the invention.
[0015] In the attached diagram:
[0016] Figure 1 A schematic diagram of the top isometric structure of this application is shown;
[0017] Figure 2 This shows a schematic diagram of the top isometric structure in the split state of this application;
[0018] Figure 3 This application shows Figure 2 A magnified view of the structure at point A in the middle;
[0019] Figure 4 This application shows Figure 2 A magnified schematic diagram of the structure at point B in the middle;
[0020] Figure 5 This paper shows a schematic diagram of the bottom isometric structure in the split state of this application;
[0021] Figure 6 A cross-sectional structural schematic diagram of this application is shown;
[0022] Figure 7 A system block diagram of this application is shown;
[0023] List of reference numerals
[0024] 1. Human body static electricity discharge device; 101. Placeholder base; 102. Audible and visual alarm; 103. Power switch; 104. Circular plate; 105. Storage slot; 106. Plug-in opening; 107. Limit plug-in hole; 108. Tactile switch; 109. Sensing slot; 1010. Proximity switch; 1011. Timing module; 1012. Battery; 1013. Microcontroller;
[0025] 2. Press plate; 201. Spring support; 202. Metal mating block;
[0026] 3. Cylinder; 301. Annular rubber sheet; 302. Limiting rod; 303. Base plate; 304. Spring return component; 305. Matching pressure plate. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] Example: Please refer to Figures 1 to 7 :
[0029] This invention proposes a static electricity elimination device, comprising: a human body static electricity release device 1; a circular plate 104 is fixedly installed on the upright of the human body static electricity release device 1 adjacent to the lower side of the touch ball; the top surface of the circular plate 104 has two limiting insertion holes 107 arranged in a ring array, penetrating its bottom surface; a cylindrical tube 3 is inserted around the touch ball of the human body static electricity release device 1, the inner diameter of the cylindrical tube 3 being larger than the diameter of the touch ball; a limiting rod 302 is fixedly installed on the bottom surface of the cylindrical tube 3 relative to the two limiting insertion holes 107; the two limiting rods 302 are slidably inserted into the two limiting insertion holes 107 respectively; a base plate 303 is fixedly installed on the bottom surface of each of the two limiting rods 302; the top surface of the two base plates 303 is connected to the circular plate 107. The bottom surfaces of the plates 104 are fixedly connected by a spring return member 304. An annular rubber sheet 301 is fixedly installed on the inner circumferential surface of the cylinder 3 adjacent to the top opening. In its natural state, the annular rubber sheet 301 is higher than the touch ball. A set of tactile switches 108 is fixedly installed on the top surface of the circular plate 104. A mating pressure plate 305 is fixedly installed on the inner circumferential surface of the cylinder 3 adjacent to the bottom opening. The mating pressure plate 305 corresponds to the position of the tactile switches 108. When the bottom surface of the annular rubber sheet 301 contacts the touch ball, the spring return member 304 is in a stretched state, and the bottom surface of the mating pressure plate 305 contacts the button end of the tactile switch 108. At this time, the tactile switch 108 is in a pressed and activated state.
[0030] In this embodiment, a rectangular block-shaped base 101 is fixedly installed on the bottom end face of the stand of the human body static electricity release device 1. The human body static electricity release device 1 is located at the left adjacent edge of the top surface of the base 101. A storage slot 105 is opened on both the left and right sides of the top surface of the human body static electricity release device 1. A rectangular plate-shaped pressing plate 2 is provided directly above the human body static electricity release device 1. A spring support 201 is fixedly installed on the bottom end face of the pressing plate 2 adjacent to the four corners of its four edges. The four spring support 201s are fixedly connected to the bottom surface of the inner end of the two storage slots 105 respectively. In the natural state, the spring support 201s are in the bottom position of the pressing plate 2. The end face is higher than the top face of the occupant base 101; the top face of the occupant base 101 has an insertion opening 106 that penetrates its bottom face, and the left side of the inner end of the insertion opening 106 has a sensing groove 109, and a set of proximity switches 1010 is fixedly installed on the left side of the inner end of the sensing groove 109; a metal mating block 202 that can sense and cooperate with the proximity switch 1010 is fixedly installed on the bottom face of the step plate 2 relative to the insertion opening 106; in the natural state of the spring support 201, the metal mating block 202 is inserted into the insertion opening 106, but at this time the metal mating block 202 is higher than the sensing groove 109, and it is not in the proximity position. Within the sensing range of switch 1010; when the bottom surface of the step plate 2 contacts the top surface of the stationary base 101, the spring support 201 is in a compressed state, and at this time the metal mating block 202 corresponds to the position of the sensing groove 109, and it is within the sensing range of proximity switch 1010; the stationary base 101 is equipped with a microcontroller 1013 and a timing module 1011 and a battery 1012 electrically connected to it, and the timing value of the timing module 1011 is five seconds; the top surface of the stationary base 101 is equipped with an audible and visual alarm 102 and a power switch 103 electrically connected to the microcontroller 1013; a tactile switch 108 and a proximity switch All proximity switches 1010 and 1011 are electrically connected to the microcontroller 1013. When proximity switch 1010 senses the metal mating plug 202, proximity switch 1010 sends a feedback signal to microcontroller 1013, and microcontroller 1013 controls timing module 1011 to start. When tactile switch 108 is in the pressed start state, tactile switch 108 sends a feedback signal to microcontroller 1013, and microcontroller 1013 controls timing module 1011 to turn off. When the timing value of timing module 1011 is reached, timing module 1011 sends a feedback signal to microcontroller 1013, and microcontroller 1013 controls audible and visual alarm 102 to start.
[0031] The working principle of this embodiment:
[0032] The human body static electricity release device 1 is placed at the entrance of hazardous areas where personnel may accumulate static electricity in chemical areas (such as loading and unloading areas, storage tank areas, reaction vessel operation areas, etc.), while the placeholder base 101 occupies the space at the entrance. Furthermore, the grounding stake of the human body static electricity release device 1 is driven vertically into the ground to a depth of not less than 0.6 meters to ensure good grounding. The grounding resistance must be less than 10Ω. The human body static electricity release device 1 is connected to the grounding stake through a dedicated grounding wire.
[0033] When the manager presses the power switch 103 to start the equipment, the space at the entrance of the chemical hazardous area is occupied by the stand-in base 101. Therefore, the worker will inevitably step on the foot plate 2 when entering. When the worker stands on the foot plate 2, the spring support 201 is compressed under the pressure of the worker's weight. At this time, the metal mating plug 202 will move down along the plug opening 106, so that it corresponds to the position of the sensing slot 109 and is currently within the sensing range of the proximity switch 1010. When the proximity switch 1010 senses the metal mating plug 202, the proximity switch 1010 sends a feedback signal to the microcontroller 1013, and the microcontroller 1013 controls the timing module 1011 to start.
[0034] When personnel preparing to enter a hazardous chemical area touch the touch ball of the human body static electricity discharge device 1 to perform static electricity elimination as required, the personnel's hands will first contact the annular rubber sheet 301 and press down. At this time, under the pressure of the hand, the cylinder 3 moves down along the touch ball through the sliding engagement of the limiting rod 302 and the limiting insertion hole 107. At the same time, the spring support 201 is gradually stretched until the annular rubber sheet 301 contacts the touch ball. At this time, the personnel's hands will also contact the touch ball through the central area of the annular rubber sheet 301. During this process, the static electricity carried by the human body will be conducted to the ground through the human body static electricity discharge device 1 and the grounding system, realizing the static electricity release and elimination operation.
[0035] Furthermore, during the above operation, when the bottom surface of the annular rubber sheet 301 contacts the touch ball, the bottom surface of the pressure plate 305 contacts the button end of the tactile switch 108. At this time, the tactile switch 108 is in the pressed start state. The tactile switch 108 sends a feedback signal to the microcontroller 1013, and the microcontroller 1013 controls the timing module 1011 to turn off to avoid false alarms.
[0036] If a worker preparing to enter a hazardous chemical area fails to perform the static electricity elimination operation by touching the contact ball of the human body static electricity discharge device 1 as required, the timing module 1011 cannot be turned off by pressing the aforementioned operation. When the timing value of the timing module 1011 is reached, the timing module 1011 sends a feedback signal to the microcontroller 1013. The microcontroller 1013 then controls the audible and visual alarm 102 to be activated. Through the conspicuous flash and sharp sound of the audible and visual alarm 102, a warning is issued to the worker who is not operating according to regulations, reminding them to complete the static electricity elimination operation as required as soon as possible to ensure the safety of operations in hazardous chemical areas.
[0037] The following points should be noted in this article:
[0038] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0039] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A static electricity elimination device, comprising a human body static electricity release device (1), characterized in that, A circular plate (104) is fixedly installed on the upright of the human body static electricity release device (1) adjacent to the lower side of the touch ball. The top surface of the circular plate (104) has two limiting insertion holes (107) that penetrate its bottom surface in a ring array. A cylinder (3) is inserted around the touch ball of the human body static electricity release device (1). The inner diameter of the cylinder (3) is larger than the diameter of the touch ball. A limiting rod (302) is fixedly installed on the bottom surface of the cylinder (3) at each of the two limiting insertion holes (107). The limiting rod (302) is slidably inserted into two limiting insertion holes (107) respectively. A base plate (303) is fixedly installed on the bottom end face of each of the two limiting rods (302). The top end face of the two base plates (303) is fixedly connected to the bottom end face of the circular plate (104) by a spring reset member (304). A ring rubber sheet (301) is fixedly installed on the inner circumference of the cylinder (3) adjacent to the top opening end. In the natural state of the spring reset member (304), the ring rubber sheet (301) is higher than the touch ball.
2. The static electricity elimination device according to claim 1, characterized in that, A set of tactile switches (108) is fixedly installed on the top surface of the circular plate (104); a mating pressure plate (305) is fixedly installed on the inner circumferential surface of the cylinder (3) adjacent to the bottom opening end, and the mating pressure plate (305) is positioned corresponding to the tactile switch (108); when the bottom end of the annular rubber sheet (301) contacts the touch ball, the spring reset member (304) is in a stretched state, and the bottom end of the mating pressure plate (305) contacts the button end of the tactile switch (108), at which time the tactile switch (108) is in a pressed start state.
3. The static electricity elimination device according to claim 2, characterized in that, The human body static electricity release device (1) has a rectangular block structure of a spacer base (101) fixedly installed on the bottom end of the pole. The human body static electricity release device (1) is located on the left side of the top surface of the spacer base (101). A storage slot (105) is opened on both the left and right sides of the top surface of the human body static electricity release device (1). A rectangular plate structure of a stepping plate (2) is provided directly above the human body static electricity release device (1). A spring support (201) is fixedly installed on the bottom end of the stepping plate (2) adjacent to the four corners of the four edges. The four spring supports (201) are fixedly connected to the bottom end of the two storage slots (105) respectively. In the natural state of the spring support (201), the bottom end of the stepping plate (2) is higher than the top end of the spacer base (101).
4. The static electricity elimination device according to claim 3, characterized in that, The top surface of the occupier base (101) has a plug-in opening (106) extending through its bottom surface. A sensing groove (109) is provided on the left side of the inner end of the plug-in opening (106). A set of proximity switches (1010) is fixedly installed on the left side of the inner end of the sensing groove (109). A metal mating block (202) that can sense and engage with the proximity switches (1010) is fixedly installed on the bottom surface of the step plate (2) relative to the plug-in opening (106). The spring support (201) is in its natural state. In the current state, the metal mating plug (202) is inserted into the plug opening (106), but at this time the metal mating plug (202) is higher than the sensing groove (109) and is not within the sensing range of the proximity switch (1010); when the bottom surface of the stepping plate (2) contacts the top surface of the occupant base (101), the spring support (201) is in a compressed state, at this time the position of the metal mating plug (202) corresponds to the sensing groove (109) and it is within the sensing range of the proximity switch (1010).
5. The static electricity elimination device according to claim 4, characterized in that, The spacer base (101) contains a microcontroller (1013) and a timing module (1011) and a battery (1012) electrically connected to it. The timing module (1011) has a timing value of five seconds. The top surface of the spacer base (101) is equipped with an audible and visual alarm (102) and a power switch (103) electrically connected to the microcontroller (1013). A tactile switch (108) and a proximity switch (1010) are both electrically connected to the microcontroller (1013). When the proximity switch (1010) senses the metal mating plug (202), the proximity switch... (1010) Feedback signal is given to microcontroller (1013), microcontroller (1013) controls timing module (1011) to start; when tactile switch (108) is in the pressed start state, tactile switch (108) feedback signal is given to microcontroller (1013), microcontroller (1013) controls timing module (1011) to turn off; when the timing value of timing module (1011) is reached, timing module (1011) feedback signal is given to microcontroller (1013), microcontroller (1013) controls sound and light alarm (102) to start.