Electrostatic ring alarm capable of providing multi-element control signals

Abstract

The utility model relates to an electrostatic ring alarm capable of providing multi-element control signals in the technical field of electrostatic ring alarms, a capacitor assembly comprises a first capacitor bank, a second capacitor bank and a chip capacitor bank, and a wide voltage range is designed, so that a signal source is easier to meet the specification of a control element; by additionally arranging the shifting change-over switch, two output modes of direct-current voltage and on-off signals are achieved at the same time, and use of control elements such as a three-color lamp, a relay and a PLC is easy to meet; a set of standby signals and a photoelectric switch are additionally arranged, for fool-proof management of production, when a three-color lamp, an LCD screen or other devices are connected, the standby signals can be independently displayed, it can be clearly seen that a worker is at a station or does not wear an electrostatic ring, the worker is reminded to wear the electrostatic ring, and electrostatic accidents are eradicated; after the cylindrical fixing hole and the two conical fixing blocks are added, the single / double-loop electrostatic ring is inserted into the insertion hole, the electrostatic ring is fixed, the stress point is changed, the risk caused by separation between the electrostatic ring and the alarm due to swing stress is avoided, and the static conduction stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic ring alarms, in particular to an electrostatic ring alarm capable of providing multiple control signals. Background Art

[0002] The static ring alarm is an instrument that detects the stability of the connection between the static ring and the ground wire. When the static ring fails or the ground fails, it will sound an alarm. The current problems of the existing structure are:

[0003] 1. The output signal voltage of the electrostatic ring alarm on the market is 9V DC, which cannot meet the diverse needs of automation and visual control in industrial production;

[0004] 2. There are only two outputs, NG and GOOD. The standby signal and either NG or GOOD signal are output together. There is no standby signal output. When production line employees work without wearing the device, NG or GOOD signals will still be output, causing managers to misunderstand and unable to manage accurately.

[0005] 3. For workstations with strict requirements on static electricity, when someone is present, they must wear a wristband. If they are not wearing it, an alarm will be triggered to let the manager know, providing convenient and efficient management. Currently, the single-loop static ring alarm on the market does not have this function.

[0006] In addition, the main shapes of the anti-static ring plugs on the market are straight and L-shaped, and the front springs are lantern plugs, banana plugs, and DC audio plugs. After the anti-static ring is worn on a person's hand or foot and inserted into the anti-static ring alarm socket, as the employee's production work changes and the plug is fixed, there is a certain amount of tension between the anti-static ring plug and the socket, and the angle of the tension is constantly changing, resulting in constant force shaking between the anti-static ring plug and the socket, causing the following defects:

[0007] 1. The front shrapnel lantern plug or banana plug is deformed due to stress, which shortens the service life of the electrostatic ring;

[0008] 2. When the front-end shrapnel lantern plug or banana plug is subjected to force, a gap is generated between the jack and the plug in the direction of force, resulting in poor contact and frequent false alarms.

[0009] Therefore, when using it, its structure needs to be further processed and improved, which increases the process and reduces work efficiency. For this reason, the inventors have proposed an electrostatic ring alarm that can provide multiple control signals to solve the above-mentioned technical problems. Utility Model Content

[0010] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0011] An electrostatic ring alarm that can provide multiple control signals includes a shell and a main control circuit board installed inside the shell. The integrated circuit in the main control circuit board is used to assist in converting the detection results of an external infrared or photoelectric sensor switch into electrical performance and assist in signal circuit control. The surface of the main control circuit board is electrically connected to a photoelectric component for assisting infrared detection. The photoelectric component includes a toggle switch. The toggle switch is electrically connected to the main control circuit board and extends to the surface of the shell. The surface of the main control circuit board is provided with a socket structure, which includes a ground wire socket, a signal output socket, a USB socket, a DC power socket and an electrostatic ring socket group. The USB socket is an interface for connecting an external infrared sensor photoelectric switch. When the USB socket is connected to the external infrared sensor photoelectric switch, the external infrared sensor photoelectric switch and the main control circuit board form an electrical loop. The integrated circuit in the main circuit board assists in converting the detection results of the external infrared or photoelectric sensor switch into electrical performance and assists in signal circuit control, facilitating external comparison, thereby assisting the comparison device in identification. The DC power socket is a host power input interface, the ground wire socket is a connection interface for connecting a ground wire, the electrostatic ring socket group is used to connect to the electrostatic ring insertion interface, and the signal output socket is a control signal input interface;

[0012] The surface of the main control circuit board is electrically connected to a photocoupler relay for signal conversion, which converts the voltage signal of the main control circuit board into an on-off signal through the photocoupler relay. The surface of the main control circuit board is electrically connected to a capacitor component, which includes a first capacitor group, a second capacitor group and a chip capacitor group. The surface of the shell is provided with a connection component for assisting in the protection of the external plug connector.

[0013] Furthermore, the first capacitor group, the second capacitor group, and the chip capacitor group correspond to the standby signal A, the normal signal B, and the abnormal signal C, respectively; by adding an optical coupler relay to the circuit, the on-off signal output is increased, and the toggle switch is switched by pulling the section. The toggle switch has the function of selecting the voltage signal and the on-off signal, so that the alarm has the functions of DC voltage output and on-off signal output. The circuit wide voltage input and output design makes the machine suitable for a wide voltage range of 9V-24V, and the input and output voltages are equal, which is convenient for the adaptation of the control components. By adding different capacitor groups, a set of standby signals is added, and the original two groups of signals in the existing structure are expanded to three independent groups of signals;

[0014] The added infrared sensing photoelectric switch signal, when there is someone at the workstation, detects the closed signal of the light being blocked through the externally connected infrared sensing photoelectric switch and sends it back to the external machine for comparison. When the comparison machine performs calculations, it determines whether the operator is wearing the wristband correctly. If the employee is not wearing an anti-static wristband or is wearing one but the anti-static wristband is defective, an alarm signal will be issued. The infrared light will produce intermittent light waves or stop working due to poor contact, so that the external comparison machine can know that the anti-static wristband is defective and issue an alarm signal to warn.

[0015] Furthermore, the connection assembly includes a conical fixing block and a cylindrical fixing column. The conical fixing block is symmetrical in structure and is relatively mounted on the surface of the shell. One end of the conical fixing block is connected to a support plate for increasing the stability of the connection. One end of the electrostatic ring socket group extends to the surface of the shell. The cylindrical fixing column is located on the surface of the shell and is coaxially arranged with the single-loop electrostatic ring socket. A protrusion structure is provided on the surface of the conical fixing block. The conical fixing block and the shell are an integrally formed structure, and the cylindrical fixing column and the shell are an integrally formed structure.

[0016] The inner diameter of the cylindrical hole in the cylindrical fixing column just matches the outer diameter of the injection molded part of the electrostatic ring plug. When the electrostatic ring is inserted, the injection molded part of the plug is just fixed in the cylindrical hole of the alarm. The inner diameter of the cylindrical hole is about 8mm and the height is 8mm. The inner diameter and height are suitable for the fixation of straight and L-shaped electrostatic ring plugs.

[0017] After adding the cylindrical fixing column, when a single-loop electrostatic ring is inserted into the socket, the force point position changes from the front spring piece and the socket part to the rear injection molding part and the inner part of the machine cylinder. The spring piece part is easy to deform, while the injection molding part is not easy to deform. The cylindrical fixing column plays a role in wrapping the injection molding part and the insertion part of the electrostatic ring, which plays a role in reducing wear and tear, thereby extending the service life of the electrostatic ring and the electrostatic ring alarm. In addition, due to the change in the force point, the already full contact between the front spring piece and the socket will not change with the working swing, avoiding the generation of false alarm signals and improving product quality.

[0018] The distance between the two conical fixing blocks is just enough to hold the dual-circuit electrostatic ring plug, thereby changing the force position between the jack and the plug, and fixing the electrostatic ring so that it will not shake arbitrarily when the working position is changed, avoiding the risk of connection falling off;

[0019] The dual-circuit electrostatic ring is inserted into the socket, and the injection-molded part of the electrostatic ring is stuck in the gap of the conical fixing block, which changes the force point. When the operator's hand swings, the force point changes to the conical fixing block and the injection-molded part of the electrostatic ring, so that the already full contact between the front DC audio plug and the jack will not change with the swing of the hand, avoiding the generation of false alarm signals and improving product quality. At the same time, because the conical fixing block fixes the electrostatic ring plug, the risk of the electrostatic ring and the alarm being separated due to the swinging force is avoided, and the stability of the static electricity conduction is improved. A raised structure is added to the surface of the conical fixing block to increase the contact points of the conical fixing block, thereby increasing the friction force, further increasing the clamping capacity, and reducing the probability of the wire falling or detaching.

[0020] Furthermore, the surface of the main control circuit board is electrically connected to a buzzer for auxiliary alarm prompts; the buzzer has the function of combining visual and sound alarm prompts, so that the operator can be more quickly aware of changes in the working status. This setting does not need to rely on direct visual observation, thereby improving operational safety in complex environments; the use of a buzzer can improve the response speed of emergencies and reduce losses caused by failure to detect faults in time.

[0021] Furthermore, a micro switch is electrically connected to the surface of the main control circuit board. The micro switch is a contact mechanism with a small contact spacing and a snap-action mechanism. It performs a switching action with a specified stroke and a specified force. The micro switch is covered with a housing and has a driving rod on the outside. The micro switch plays a role in automatic control and safety protection in the circuit, reducing the different resistance forces generated by the operation of different capacitor groups, which may cause circuit obstruction of the main control circuit board.

[0022] In addition, the micro switch plays the role of sensing whether an electrostatic ring is inserted in the circuit. If no electrostatic ring is inserted, the circuit will not be triggered for detection, thereby issuing an instruction for the machine to enter the standby state, and the default state is standby state.

[0023] Furthermore, the surface of the main control circuit board is electrically connected to a light guide column for assisting the alarm prompt. The light guide column can effectively improve the intuitiveness and visual range of the alarm prompt. While emitting bright light, the color change of the light guide column itself can be used to distinguish whether the signal is a warning signal or a normal signal, thereby enhancing the warning effect.

[0024] Furthermore, the surface of the main control circuit board is electrically connected to an adjustable resistor; the adjustable resistor is used to adjust the resistance value in the circuit to achieve precise control of the circuit's operating state; in addition, the adjustable resistor can adjust the voltage, current or signal control while sharing the voltage in the circuit, making the voltage in the circuit more stable. A hole is opened on the surface of the housing directly above the adjustable resistor to facilitate adjustment of the resistance value with an adjustment pen without removing the housing. The hole passes through the surface of the other end of the housing;

[0025] Adjustable resistance can be adjusted according to the difference in surface resistance of different human bodies. When error results occur, it can be adjusted to widen the scope of use and avoid the occurrence of misjudgment results. The use of adjustable voltage, current or signal control makes the instrument more stable.

[0026] By using the adjustable resistor together with the first capacitor group, the second capacitor group and the chip capacitor group, the output voltage signal range is widened to 9V-24V. By coordinating the use of multiple different voltage points, the occurrence of short circuits on the main control circuit board due to excessive current is reduced.

[0027] Furthermore, the surfaces of both ends of the shell are provided with hanging ears, and the surfaces of the hanging ears are respectively provided with connection holes and key slots;

[0028] The setting of the hanging ears can enhance the stability of the shell and improve its load-bearing capacity. At the same time, the additional connection holes and keyways make the assembly and disassembly process of the shell more convenient and reduce the difficulty of manual operation. The connection holes can be connected to screws or bolts, and the keyways can be connected to limit rods with protrusions. When the two are combined with each other, the connection stability can be further increased. When used alone, it can be flexibly installed to the specified position, which provides convenience for the subsequent addition of other components or modules, and is conducive to improving the flexible functionality of the shell. Connection holes and keyways of different specifications can adapt to various types of connectors, thereby improving the universal performance of the shell.

[0029] Furthermore, the surface of the shell is provided with a plurality of sound transmission holes for assisting the main control circuit board in volume diffusion, and the sound transmission holes pass through the surface of one end of the shell; adopting this structure can increase the sound amplification area and range, and the sound transmission holes are arranged in a honeycomb structure, which is conducive to increasing the sound amplification area and range.

[0030] Furthermore, a power switch is electrically connected to the surface of the main control circuit board, and the electrostatic ring socket group includes a single-loop electrostatic ring socket and a double-loop electrostatic ring socket.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. Design a wide voltage range to make it easier for the signal source to meet the specifications of the control components. The voltage specifications of the three-color lights, relays, PLCs and other control components on the market are almost all 9V-24V. The output voltage specifications of the electrostatic ring alarm can be used directly, which is easy to control directly and simplify the design of the subsequent production line control circuit and the waste of components.

[0033] 2. Due to the demand for factory automation management, a large-screen LCD display is required for visual management. To achieve this goal, PLC control is often used. PLC cannot receive voltage signals, but can only receive on-off indication signals. Therefore, after the electrostatic ring alarm increases the on-off signal output, it is easy to integrate into the management of the overall PLC control equipment in the workshop.

[0034] 3. Add a set of standby signals, mainly for production anti-fool management. When connected to a three-color light or LCD screen, the standby signal will be displayed separately, so that it can be clearly seen that there are employees at the workstation who are not wearing anti-static rings, reminding them to wear them and prevent static electricity accidents.

[0035] 4. Add a structure that can be connected to an external infrared sensing photoelectric switch, mainly for production anti-foolproof management. When there is someone at the workstation and not wearing a wristband, the externally connected infrared photoelectric switch can automatically detect it and send out an alarm signal or a buzzer sound prompt, which is convenient for the manager to see the light signal, buzzer sound or LCD screen signal from a distance, and know that the employee is not wearing it, reminding him to wear it, and preventing static electricity accidents.

[0036] 5. After adding the cylindrical fixing hole, the single-loop electrostatic ring is inserted into the socket, and the position of the force point changes from the front spring piece and the socket part to the rear injection molding part and the inner part of the machine cylinder. The spring piece part is easy to deform, while the injection molding part is not easy to deform, thereby extending the service life of the electrostatic ring and the electrostatic ring alarm; in addition, due to the change of the force point, the already full contact between the front spring piece and the socket will not change with the working swing, avoiding the generation of false alarm signals and improving product quality.

[0037] 6. After adding two conical fixing blocks, the dual-circuit electrostatic ring is inserted into the socket, and the injection-molded part of the electrostatic ring is stuck in the gap of the fixing block, which changes the force point. When the operator's hand swings, the force point changes to the fixing block and the injection-molded part of the electrostatic ring, so that the original full contact between the front DC audio plug and the jack will not change with the working swing, avoiding the generation of false alarm signals and improving product quality. At the same time, because the fixing block fixes the electrostatic ring plug, the risk of the electrostatic ring and the alarm being separated due to the swinging force is avoided, thereby improving the stability of the static electricity conduction.

[0038] 7. This product has two photoelectric functions: 1. An external photoelectric sensor switch is connected through a USB socket. The main control circuit board recognizes the photoelectric signal and converts it into an electrical signal, which is then used with external comparison equipment to determine whether there is someone present. 2. The optocoupler relay converts the electrical signal recognized by the main control circuit board into an on-off signal. The two functions independently, and the two sets of signals can realize the single and double circuit alarm functions respectively, thereby increasing the flexibility of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a stereogram of an electrostatic ring alarm that can provide multiple control signals;

[0040] Figure 2 Another perspective view of an electrostatic ring alarm that can provide multiple control signals;

[0041] Figure 3 It is an axial view of an electrostatic ring alarm that can provide multiple control signals;

[0042] Figure 4 It is another axis view of an electrostatic ring alarm that can provide multiple control signals;

[0043] Figure 5 It is a three-dimensional diagram of the main control circuit board in an electrostatic ring alarm that can provide multiple control signals;

[0044] Figure 6 Another three-dimensional diagram of the main control circuit board in an electrostatic ring alarm that can provide multiple control signals;

[0045] Figure 7 This is another three-dimensional diagram of the main control circuit board in an electrostatic ring alarm that can provide multiple control signals;

[0046] Figure 8 It is a reference stereogram for the use of a single circuit in an electrostatic ring alarm that can provide multiple control signals;

[0047] Figure 9 This is a main view of a single-circuit main control circuit board of an electrostatic ring alarm that can provide multiple control signals;

[0048] Figure 10 It is a three-dimensional diagram of a single-circuit main control circuit board of an electrostatic ring alarm that can provide multiple control signals;

[0049] Figure 11 It is a reference stereogram for the use of dual circuits in an electrostatic ring alarm that can provide multiple control signals;

[0050] Figure 12 It is a partial structural diagram of a dual circuit in an electrostatic ring alarm that can provide multiple control signals;

[0051] Figure 13 This is another partial structural diagram of a dual circuit in an electrostatic ring alarm that can provide multiple control signals;

[0052] Figure 14 It is a three-dimensional diagram of a dual-circuit main control circuit board of an electrostatic ring alarm that can provide multiple control signals;

[0053] Figure 15 This is an axial view of the dual-circuit main control circuit board of an electrostatic ring alarm that can provide multiple control signals;

[0054] Figure 16 This is a schematic diagram of the electrical principle structure of an electrostatic ring alarm that can provide multiple control signals;

[0055] Figure 17This is a schematic diagram of the connection between an electrostatic ring alarm that can provide multiple control signals and an external photoelectric switch.

[0056] Figure: Housing 1, main control circuit board 2, optocoupler relay 3, toggle switch 4, grounding socket 5, USB socket 6, DC power socket 7, single-loop electrostatic ring socket 8, first capacitor bank 9, second capacitor bank 10, chip capacitor bank 11, conical fixing block 12, cylindrical fixing column 13, support plate 14, raised structure 15, buzzer 16, micro switch 17, light guide column 18, adjustable resistor 19, mounting ear 20, connection hole 21, keyway 22, sound transmission hole 23, power switch 24, dual-loop electrostatic ring socket 25, signal output socket 26. DETAILED DESCRIPTION

[0057] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0058] For this embodiment, please refer to Figures 1-10 and Figure 16-17 , a specific embodiment of an electrostatic ring alarm that can provide multiple control signals includes a shell 1 and a main control circuit board 2 installed inside the shell 1. The integrated circuit in the main control circuit board 2 is used to assist in converting the detection results of the external infrared or photoelectric sensor switch into electrical performance and assist in signal circuit control. The surface of the main control circuit board 2 is electrically connected with a photoelectric component for assisting infrared detection. The photoelectric component includes a toggle switch 4. The toggle switch 4 is electrically connected to the main control circuit board 2, and the toggle switch 4 extends to the surface of the shell 1. The surface of the main control circuit board 2 is provided with a socket structure, which includes a grounding socket 5, a signal output socket 26, a USB socket 6, and a DC power supply. Socket 7 and electrostatic ring socket group, USB socket 6 is connected to the external infrared sensor photoelectric switch insertion interface. When the USB socket 6 is connected to the external infrared sensor photoelectric switch, the external infrared sensor photoelectric switch and the main control circuit board 2 form an electrical loop. The integrated circuit in the main control circuit board 2 assists in converting the detection results of the external infrared or photoelectric sensor switch into electrical performance and assists in signal circuit control, facilitating external comparison, thereby assisting the comparison device in identification. The DC power socket 7 is the host power input interface, the ground wire socket 5 is a connection interface for connecting the ground wire, the electrostatic ring socket group is used to connect the electrostatic ring insertion interface, and the signal output socket 26 is the control signal input interface;

[0059] The surface of the main control circuit board 2 is electrically connected to a photocoupler relay for signal conversion, and the voltage signal of the main control circuit board 2 is converted into an on-off signal circuit through the photocoupler relay 3. The surface of the main control circuit board 2 is electrically connected to a capacitor component, which includes a first capacitor group 9, a second capacitor group 10 and a chip capacitor group 11. The surface of the shell 1 is provided with a connection component for assisting in the protection of the external plug connector.

[0060] The first capacitor group 9, the second capacitor group 10 and the chip capacitor group 11 correspond to the standby signal A, the normal signal B and the abnormal signal C respectively; by adding an optical coupler relay to the circuit, the on-off signal output is increased, and the toggle switch 4 is switched by pulling the section. The toggle switch has the function of selecting the voltage signal and the on-off signal, so that the alarm has the function of outputting DC voltage and on-off signals. The circuit wide voltage input and output design makes the machine suitable for a wide voltage range of 9V-24V, and the input and output voltages are equal, which is convenient for the adaptation of the control components. By adding different capacitor groups, a set of standby signals is added, and the original two groups of signals in the existing structure are expanded into three independent signals.

[0061] The added infrared sensing photoelectric switch signal, when there is someone at the workstation, the closed signal of the light being blocked is detected by the externally connected infrared sensing photoelectric switch and sent back to the external machine for comparison. When the comparison machine performs calculations, it determines whether the operator is wearing the wristband signal correctly. If the employee is not wearing an anti-static wristband or is wearing it but the anti-static wristband is defective, an alarm signal will be issued. The infrared ray will produce intermittent light waves or stop working due to poor contact, so that the external comparison machine can know that the anti-static wristband is a defective product and issue an alarm signal to warn. This principle is the principle of the infrared sensing module. The infrared sensing module emits infrared rays of a certain wavelength. The infrared ray can pass through the surface of an object. When the infrared ray encounters an object, the infrared ray is reflected back. The infrared sensing module will convert the reflected infrared ray into a signal.

[0062] The integrated circuit in the main control circuit board 2 is used to assist in converting the detection results of the infrared or photoelectric sensor switch into electrical performance and assist in signal circuit control. Then, the voltage signal of the main control circuit board 2 is converted into an on-off signal circuit through the optical coupler relay 3, which is convenient for external alarm equipment to identify;

[0063] In addition, due to the demand for factory automation management, a large-screen LCD display is required for visual management. To achieve this goal, PLC control is often used. PLC cannot receive voltage signals, but can only receive on-off indication signals. Therefore, after the electrostatic ring alarm adds on-off signal output, it is easy to integrate into the management of the overall PLC control equipment in the workshop.

[0064] Adding a set of standby signals and adding a toggle switch 4 is also mainly for production anti-foolproof management. When there is someone at the workstation and not wearing a wristband, the infrared sensing photoelectric switch signal can assist external equipment in detection and send out an alarm signal or a buzzer sound prompt, which is convenient for managers to see the light signal, buzzer sound or LCD screen signal from a distance, and know that the employee is not wearing it, reminding them to wear it, and prevent static electricity accidents. When connected to a three-color light or LCD screen, the standby signal will be displayed separately after power is turned on, and it can be clearly seen that there is an employee at the workstation who is not wearing an anti-static ring, reminding them to wear it, and prevent static electricity accidents.

[0065] The connecting assembly includes a cylindrical fixing column 13, one end of the single-loop electrostatic ring socket 8 extends to the surface of the housing 1, the cylindrical fixing column 13 is located on the surface of the housing 1, and is coaxially arranged with the single-loop electrostatic ring socket 8, and the cylindrical fixing column 13 and the housing 1 are an integrally formed structure;

[0066] The inner diameter of the cylindrical hole in the cylindrical fixing column 13 just matches the outer diameter of the injection molded part of the electrostatic ring plug. When the electrostatic ring is inserted, the injection molded part of the plug is just fixed in the cylindrical hole of the alarm. The inner diameter of the cylindrical hole is about 8mm and the height is 8mm. The inner diameter and height are suitable for the fixation of the straight and L-shaped electrostatic ring plugs.

[0067] After adding the cylindrical fixing column 13, when a single-loop electrostatic ring is inserted into the socket, the position of the force point changes from the front spring piece and the socket part to the rear injection molding part and the inner part of the machine cylinder. The spring piece part is easy to deform, while the injection molding part is not easy to deform. The cylindrical fixing column 13 wraps the injection molding part and the electrostatic ring insertion part of the electrostatic ring, which reduces wear and tear, thereby extending the service life of the electrostatic ring and the electrostatic ring alarm. In addition, due to the change in the force point, the already full contact between the front spring piece and the socket will not change with the working swing, thereby avoiding the generation of false alarm signals and improving product quality.

[0068] The surface of the main control circuit board 2 is electrically connected to a buzzer 16 for auxiliary alarm prompts; the buzzer 16 has the function of combining visual and sound alarm prompts, so that the operator can be more quickly aware of changes in the working status. This setting does not require direct visual observation, thereby improving operational safety in complex environments; the use of the buzzer 16 can improve the response speed of emergency situations and reduce losses caused by failure to detect faults in time.

[0069] A micro switch 17 is electrically connected to the surface of the main control circuit board 2. The micro switch 17 is a contact mechanism with a small contact spacing and a snap-action mechanism. It performs a switching action with a specified stroke and a specified force. It is covered by a housing and has a driving rod on the outside. The micro switch 17 plays a role in automatic control and safety protection in the circuit, reducing the different resistance forces generated by the operation of different capacitor groups, which may cause circuit obstruction of the main control circuit board 2.

[0070] In addition, the micro switch 17 plays a role in sensing whether an electrostatic ring is inserted in the circuit. If no electrostatic ring is inserted, the circuit will not be triggered for detection, thereby issuing an instruction for the machine to enter the standby state, and the default state is standby state.

[0071] The surface of the main control circuit board 2 is electrically connected to a light guide column 18 for assisting the alarm prompt. The light guide column 18 can effectively improve the intuitiveness and visual range of the alarm prompt. While emitting bright light, the color change of the light guide column 18 itself can be used to distinguish whether the signal is a warning signal or a normal signal, thereby enhancing the warning effect.

[0072] An adjustable resistor 19 is electrically connected to the surface of the main control circuit board 2; the adjustable resistor 19 is used to adjust the resistance value in the circuit to achieve precise control of the circuit's operating state; in addition, the adjustable resistor 19 can adjust the voltage, current or signal control while sharing the voltage in the circuit, making the voltage in the circuit more stable. A hole is opened on the surface of the housing 1 directly above the adjustable resistor 19 to facilitate adjustment of the resistance value with a pen without removing the housing 1. The hole passes through the surface of the other end of the housing 1;

[0073] The adjustable resistor 19 can be adjusted according to the difference in surface resistance of different human bodies. When an error occurs, it can be adjusted to widen the range of people who can use it and avoid the occurrence of misjudgment results. The use of adjustable voltage, current or signal control makes the instrument more stable.

[0074] By using the adjustable resistor 19 in conjunction with the first capacitor group 9, the second capacitor group 10 and the chip capacitor group 11, the output voltage signal range is widened to 9V-24V, and the use of multiple different voltage points is coordinated to reduce the occurrence of short circuit of the main control circuit board 2 due to excessive current.

[0075] The surfaces of both ends of the housing 1 are provided with hanging ears 20, and the surfaces of the hanging ears 20 are respectively provided with connecting holes 21 and key slots 22;

[0076] The setting of the hanging ear 20 can enhance the stability of the shell 1 and improve its load-bearing capacity. At the same time, the setting of the additional connecting hole 21 and the keyway 22 makes the assembly and disassembly process of the shell 1 more convenient and reduces the difficulty of manual operation. The connecting hole 21 can be connected to a screw or bolt, and the keyway 22 can be connected to a limit rod with a protrusion. When the two are combined with each other, the connection stability can be further increased. When used alone, it can be flexibly installed to a specified position, which provides convenience for the subsequent addition of other components or modules, and is conducive to improving the flexible functionality of the shell 1. The connecting holes 21 and keyways 22 of different specifications can adapt to various types of connectors, thereby improving the universal performance of the shell 1.

[0077] The surface of the shell 1 is provided with a plurality of sound transmission holes 23 for assisting the main control circuit board 2 in volume diffusion. The sound transmission holes 23 pass through the surface of one end of the shell 1. This structure can increase the sound amplification area and range. The sound transmission holes 23 are arranged in a honeycomb structure, which is conducive to increasing the sound amplification area and range.

[0078] The surface of the main control circuit board 2 is electrically connected to a power switch 24 , and the electrostatic ring socket group includes a single-circuit electrostatic ring socket 8 and a double-circuit electrostatic ring socket 25 .

[0079] According to the usage characteristics of single-loop and dual-loop electrostatic rings, an anti-mistake device is designed at the socket of the electrostatic ring alarm. In view of the characteristics of different types of common electrostatic rings on the market, this embodiment acts on a single-loop alarm. By adding three groups of independent signals and a raised cylindrical fixing column 13, it reduces wear and tear, thereby extending the service life of the electrostatic ring and the electrostatic ring alarm; in addition, due to the change in the force point, the already full contact between the front spring and the socket will not change with the working swing of the hand, thereby avoiding the generation of false alarm signals and improving product quality.

[0080] The single-loop electrostatic ring alarm is a controller used in industrial production operations to constantly monitor the status of employees wearing electrostatic wristbands, the quality of the electrostatic wristbands, and the grounding condition of the alarm. It mainly determines the use of the electrostatic ring by detecting and comparing the changes in the input resistance value, and issues indications in the following three different states:

[0081] A Standby state: After the product is turned on, there is no static ring inserted;

[0082] B Normal working state: The employee wears an anti-static wristband and inserts it into the anti-static ring alarm jack. The wristband is of good quality and the ground wire of the anti-static ring alarm is normally connected.

[0083] C Abnormal status:

[0084] A: When an employee wears an anti-static ring and inserts it into the anti-static ring alarm jack, the machine will detect that the resistance value is incorrect, that is, when the anti-static ring is faulty, an alarm signal will be issued (or a buzzer 16 will sound). At this time, the anti-static ring needs to be replaced to meet the anti-static production operation requirements of the production line.

[0085] B: When an employee wears an anti-static ring and inserts it into the anti-static ring alarm jack, the machine detects that the resistance value is correct, but the machine is disconnected from the ground wire and cannot conduct static electricity to the ground, an alarm signal will be issued (or a buzzer 16 will sound to prompt). At this time, the anti-static wire needs to be reconnected to meet the anti-static production operation requirements of the production line.

[0086] The above principle is the same as the electrostatic ring alarm in the existing technology. The improvement of this design is that the above different states are added to the electrical design, so that the machine can output different voltage signals and on-off signals for subsequent automation and visual management. At the same time, the standby independent signal and photoelectric signal output are added to realize intelligent production and fool-proof management.

[0087] For this second embodiment, please refer to Figure 1-Figure 7 and Figures 11-17 , a specific embodiment of an electrostatic ring alarm that can provide multiple control signals includes a shell 1 and a main control circuit board 2 installed inside the shell 1. The integrated circuit in the main control circuit board 2 is used to assist in converting the detection results of the external infrared or photoelectric sensor switch into electrical performance and assist in signal circuit control. The surface of the main control circuit board 2 is electrically connected with a photoelectric component for assisting infrared detection. The photoelectric component includes a toggle switch 4. The toggle switch 4 is electrically connected to the main control circuit board 2, and the toggle switch 4 extends to the surface of the shell 1. The surface of the main control circuit board 2 is provided with a socket structure, which includes a grounding socket 5, a signal output socket 26, a USB socket 6, and a DC power supply. Socket 7 and electrostatic ring socket group, USB socket 6 is connected to the external infrared sensor photoelectric switch insertion interface. When the USB socket 6 is connected to the external infrared sensor photoelectric switch, the external infrared sensor photoelectric switch and the main control circuit board 2 form an electrical loop. The integrated circuit in the main control circuit board 2 assists in converting the detection results of the external infrared or photoelectric sensor switch into electrical performance and assists in signal circuit control, facilitating external comparison, thereby assisting the comparison device in identification. The DC power socket 7 is the host power input interface, the ground wire socket 5 is a connection interface for connecting the ground wire, the electrostatic ring socket group is used to connect the electrostatic ring insertion interface, and the signal output socket 26 is the control signal input interface;

[0088] The surface of the main control circuit board 2 is electrically connected to a photocoupler relay for signal conversion, and the voltage signal of the main control circuit board 2 is converted into an on-off signal circuit through the photocoupler relay 3. The surface of the main control circuit board 2 is electrically connected to a capacitor component, which includes a first capacitor group 9, a second capacitor group 10 and a chip capacitor group 11. The surface of the shell 1 is provided with a connection component for assisting in the protection of the external plug connector.

[0089] The first capacitor group 9, the second capacitor group 10 and the chip capacitor group 11 correspond to the standby signal A, the normal signal B and the abnormal signal C respectively; by adding an optical coupler relay to the circuit, the on-off signal output is increased, and the toggle switch 4 is switched by pulling the section. The toggle switch has the function of selecting the voltage signal and the on-off signal, so that the alarm has the function of outputting DC voltage and on-off signals. The circuit wide voltage input and output design makes the machine suitable for a wide voltage range of 9V-24V, and the input and output voltages are equal, which is convenient for the adaptation of the control components. By adding different capacitor groups, a set of standby signals is added, and the original two groups of signals in the existing structure are expanded into three independent signals.

[0090] The added infrared sensing photoelectric switch signal, when there is someone at the workstation, the closed signal of the light being blocked is detected by the externally connected infrared sensing photoelectric switch and sent back to the external machine for comparison. When the comparison machine performs calculations, it determines whether the operator is wearing the wristband signal correctly. If the employee is not wearing an anti-static wristband or is wearing it but the anti-static wristband is defective, an alarm signal will be issued. The infrared ray will produce intermittent light waves or stop working due to poor contact, so that the external comparison machine can know that the anti-static wristband is a defective product and issue an alarm signal to warn. This principle is the principle of the infrared sensing module. The infrared sensing module emits infrared rays of a certain wavelength. The infrared ray can pass through the surface of an object. When the infrared ray encounters an object, the infrared ray is reflected back. The infrared sensing module will convert the reflected infrared ray into a signal.

[0091] The integrated circuit in the main control circuit board 2 is used to assist in converting the detection results of the infrared or photoelectric sensor switch into electrical performance and assist in signal circuit control. Then, the voltage signal of the main control circuit board 2 is converted into an on-off signal circuit through the optical coupler relay 3, which is convenient for external alarm equipment to identify;

[0092] In addition, due to the demand for factory automation management, a large-screen LCD display is required for visual management. To achieve this goal, PLC control is often used. PLC cannot receive voltage signals, but can only receive on-off indication signals. Therefore, after the electrostatic ring alarm adds on-off signal output, it is easy to integrate into the management of the overall PLC control equipment in the workshop.

[0093] Adding a set of standby signals and adding a toggle switch 4 is also mainly for production anti-foolproof management. When there is someone at the workstation and not wearing a wristband, the infrared sensing photoelectric switch signal can assist external equipment in detection and send out an alarm signal or a buzzer sound prompt, which is convenient for managers to see the light signal, buzzer sound or LCD screen signal from a distance, and know that the employee is not wearing it, reminding them to wear it, and prevent static electricity accidents. When connected to a three-color light or LCD screen, the standby signal will be displayed separately after power is turned on, and it can be clearly seen that there is an employee at the workstation who is not wearing an anti-static ring, reminding them to wear it, and prevent static electricity accidents.

[0094] The connection assembly includes a conical fixing block 12, which is symmetrical in structure and relatively mounted on the surface of the housing 1. One end of the conical fixing block 12 is connected to a support plate 14 for increasing the stability of the connection. A protruding structure 15 is provided on the surface of the conical fixing block 12. The conical fixing block 12 and the housing 1 are integrally formed.

[0095] The 12-meter spacing between the two conical fixing blocks just fits the dual-circuit electrostatic ring plug, thereby changing the force position between the jack and the plug and fixing the electrostatic ring so that it does not shake arbitrarily when the working position is changed, avoiding the risk of connection falling off.

[0096] The dual-circuit electrostatic ring is inserted into the socket, and the injection-molded part of the electrostatic ring is stuck in the gap of the conical fixing block 12, which changes the force point. When the operator's hand swings, the force point is changed to the conical fixing block 12 and the injection-molded part of the electrostatic ring, so that the already full contact between the front DC audio plug and the jack will not change with the swing of the hand, thereby avoiding the generation of false alarm signals and improving product quality; at the same time, because the conical fixing block 12 fixes the electrostatic ring plug, the risk of the electrostatic ring and the alarm being separated due to the swinging force is avoided, and the stability of the static electricity conduction is improved. A raised structure 15 is added to the surface of the conical fixing block 12 to increase the contact points of the conical fixing block 12, thereby increasing the friction force, further increasing the clamping capacity, and reducing the probability of the wire falling or separating.

[0097] The surface of the main control circuit board 2 is electrically connected to a buzzer 16 for auxiliary alarm prompts; the buzzer 16 has the function of combining visual and sound alarm prompts, so that the operator can be more quickly aware of changes in the working status. This setting does not require direct visual observation, thereby improving operational safety in complex environments; the use of the buzzer 16 can improve the response speed of emergency situations and reduce losses caused by failure to detect faults in time.

[0098] A micro switch 17 is electrically connected to the surface of the main control circuit board 2. The micro switch 17 is a contact mechanism with a small contact spacing and a snap-action mechanism. It performs a switching action with a specified stroke and a specified force. It is covered by a housing and has a driving rod on the outside. The micro switch 17 plays a role in automatic control and safety protection in the circuit, reducing the different resistance forces generated by the operation of different capacitor groups, which may cause circuit obstruction of the main control circuit board 2.

[0099] In addition, the micro switch 17 plays a role in sensing whether an electrostatic ring is inserted in the circuit. If no electrostatic ring is inserted, the circuit will not be triggered for detection, thereby issuing an instruction for the machine to enter the standby state, and the default state is standby state.

[0100] The surface of the main control circuit board 2 is electrically connected to a light guide column 18 for assisting the alarm prompt. The light guide column 18 can effectively improve the intuitiveness and visual range of the alarm prompt. While emitting bright light, the color change of the light guide column 18 itself can be used to distinguish whether the signal is a warning signal or a normal signal, thereby enhancing the warning effect.

[0101] An adjustable resistor 19 is electrically connected to the surface of the main control circuit board 2; the adjustable resistor 19 is used to adjust the resistance value in the circuit to achieve precise control of the circuit's operating state; in addition, the adjustable resistor 19 can adjust the voltage, current or signal control while sharing the voltage in the circuit, making the voltage in the circuit more stable. A hole is opened on the surface of the housing 1 directly above the adjustable resistor 19 to facilitate adjustment of the resistance value with a pen without removing the housing 1. The hole passes through the surface of the other end of the housing 1;

[0102] The adjustable resistor 19 can be adjusted according to the difference in surface resistance of different human bodies. When an error occurs, it can be adjusted to widen the range of people who can use it and avoid the occurrence of misjudgment results. The use of adjustable voltage, current or signal control makes the instrument more stable.

[0103] By using the adjustable resistor 19 in conjunction with the first capacitor group 9, the second capacitor group 10 and the chip capacitor group 11, the output voltage signal range is widened to 9V-24V, and the use of multiple different voltage points is coordinated to reduce the occurrence of short circuit of the main control circuit board 2 due to excessive current.

[0104] The surfaces of both ends of the housing 1 are provided with hanging ears 20, and the surfaces of the hanging ears 20 are respectively provided with connecting holes 21 and key slots 22;

[0105] The setting of the hanging ear 20 can enhance the stability of the shell 1 and improve its load-bearing capacity. At the same time, the setting of the additional connecting hole 21 and the keyway 22 makes the assembly and disassembly process of the shell 1 more convenient and reduces the difficulty of manual operation. The connecting hole 21 can be connected to a screw or bolt, and the keyway 22 can be connected to a limit rod with a protrusion. When the two are combined with each other, the connection stability can be further increased. When used alone, it can be flexibly installed to a specified position, which provides convenience for the subsequent addition of other components or modules, and is conducive to improving the flexible functionality of the shell 1. The connecting holes 21 and keyways 22 of different specifications can adapt to various types of connectors, thereby improving the universal performance of the shell 1.

[0106] The surface of the shell 1 is provided with a plurality of sound transmission holes 23 for assisting the main control circuit board 2 in volume diffusion. The sound transmission holes 23 pass through the surface of one end of the shell 1. This structure can increase the sound amplification area and range. The sound transmission holes 23 are arranged in a honeycomb structure, which is conducive to increasing the sound amplification area and range.

[0107] The surface of the main control circuit board 2 is electrically connected to a power switch 24 , and the electrostatic ring socket group includes a single-circuit electrostatic ring socket 8 and a double-circuit electrostatic ring socket 25 .

[0108] According to the usage characteristics of single-circuit and dual-circuit electrostatic rings, an anti-mistake device is designed at the socket of the electrostatic ring alarm. In view of the characteristics of different types of common electrostatic rings on the market, the second embodiment acts on the dual-circuit alarm by adding three sets of independent signals and two raised conical fixing blocks 12. After adding two conical fixing blocks 12, the dual-circuit electrostatic ring is inserted into the socket, and the injection-molded part of the electrostatic ring is stuck in the gap of the fixing blocks, which changes the force point. When the operator's hand swings, the force point is changed to the fixing block and the injection-molded part of the electrostatic ring, so that the original full contact between the front DC audio plug and the jack will not change with the swing of the hand, thereby avoiding the generation of false alarm signals and improving product quality. At the same time, because the fixing block fixes the electrostatic ring plug, the risk of the electrostatic ring and the alarm being separated due to the swinging force is avoided, thereby improving the stability of the static electricity conduction.

[0109] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered as within the scope of protection of the present invention.

Claims

1. An electrostatic ring alarm capable of providing multiple control signals, comprising a housing and a main control circuit board mounted inside the housing, characterized in that: The surface of the main control circuit board is electrically connected to a photoelectric component for assisting infrared detection. The photoelectric component includes a toggle switch, which is electrically connected to the main control circuit board and extends to the surface of the shell. The surface of the main control circuit board is provided with a socket structure, which includes a ground wire socket, a signal output socket, a USB socket, a DC power socket and an electrostatic ring socket group; The surface of the main control circuit board is electrically connected to a photocoupler relay for signal conversion, which converts the voltage signal of the main control circuit board into an on-off signal through the photocoupler relay. The surface of the main control circuit board is electrically connected to a capacitor component, which includes a first capacitor group, a second capacitor group and a chip capacitor group. The surface of the shell is provided with a connection component for assisting in the protection of the external plug connector.

2. The electrostatic ring alarm capable of providing multiple control signals according to claim 1, characterized in that: The first capacitor group, the second capacitor group and the chip capacitor group respectively correspond to three signal outputs, namely: A standby signal, B normal signal, and C abnormal signal.

3. The electrostatic ring alarm capable of providing multiple control signals according to claim 1, characterized in that: The connecting assembly includes a conical fixing block and a cylindrical fixing column. The conical fixing block is symmetrical in structure and is relatively fixedly installed on the surface of the shell. One end of the conical fixing block is connected to a support plate for increasing the stability of the connection. One end of the electrostatic ring socket group extends to the surface of the shell. The cylindrical fixing column is located on the surface of the shell and is coaxially arranged with the electrostatic ring socket group. The surface of the conical fixing block is provided with a protruding structure.

4. An electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the main control circuit board is electrically connected with a buzzer for assisting alarm prompts.

5. An electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the main control circuit board is electrically connected with a micro switch.

6. The electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the main control circuit board is electrically connected with a light guide column for assisting alarm prompts.

7. An electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the main control circuit board is electrically connected with an adjustable resistor.

8. The electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surfaces of both ends of the shell are provided with hanging ears, and the surfaces of the hanging ears are respectively provided with connecting holes and key slots.

9. The electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the shell is provided with a plurality of sound transmission holes for assisting the main control circuit board in volume diffusion, and the sound transmission holes penetrate the surface of one end of the shell.

10. An electrostatic ring alarm capable of providing multiple control signals according to any one of claims 1 to 3, characterized in that: The surface of the main control circuit board is electrically connected with a power switch, and the electrostatic ring socket group includes a single-loop electrostatic ring socket and a double-loop electrostatic ring socket.

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