System composed of grounding safety device and grounding control circuit
By combining grounding safety devices and grounding control circuits, and using limit switches and relays to control high-current circuits, the problem of not being able to handle poor grounding contact in a timely manner is solved, achieving circuit safety protection and timely feedback, and improving the safety of electrical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-20
AI Technical Summary
Existing grounding devices cannot address poor contact in a timely manner, leading to safety hazards in electrical equipment. Existing protection circuits only have alarm functions and cannot effectively prevent accidents.
Design a system consisting of a grounding safety device and a grounding control circuit. The system uses a limit switch to detect the grounding degree of the grounding pin, and uses a relay to control the on/off state of a high-current circuit. Combined with a buzzer indicator, the system provides timely feedback on the grounding status to ensure circuit safety.
This system enables timely circuit disconnection in case of poor grounding, preventing accidental energization of electrical equipment, improving circuit safety and operator protection. It ensures that limit switches are installed at appropriate positions on the grounding pin to detect the degree of grounding, and that relays are used to control the on/off of high-current circuits to ensure circuit safety.
Smart Images
Figure CN224021067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power supply protection device technical field, concretely relates to a system composed of grounding safety device and grounding control circuit. BACKGROUND
[0002] In power supply system, if due to electrical equipment insulation has various fault phenomena, all can cause electrical equipment normal condition not to carry electric charge part suddenly electrified, or make electrical equipment normal condition should load low voltage electricity part suddenly become load high voltage electricity, all can cause electric shock accident. In order to prevent the emergence of this phenomenon, certain protective measures are taken, and the protective measures of electrical equipment grounding are generally taken. In actual situation, the grounding device can not effectively realize the function of protection grounding due to poor contact, at this time, the electrical equipment is extremely dangerous, and accidents are prone to occur during power distribution, and the existing protection circuit only has alarm function, cannot handle in time and prevent accidents. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a system composed of grounding safety device and grounding control circuit, which solves the problem that the existing grounding device cannot handle the circuit in time when the grounding contact is poor.
[0004] To solve the above problems, the technical scheme provided by the utility model is as follows:
[0005] A system composed of grounding safety device and grounding control circuit, including grounding safety device and grounding control circuit, the grounding safety device is electrically connected in the grounding control circuit, the grounding safety device includes grounding spike, the travel switch is arranged on the grounding spike, the travel contact is arranged on the travel switch, the travel contact is located on the side of the grounding spike inserted into the ground, and the upper-mounted control relay is arranged on the grounding control circuit.
[0006] Further, the grounding spike is fixedly provided with a fixed plate, the travel switch is fixedly arranged on the fixed plate, and the fixed plate is further provided with a mounting shell covering the travel switch.
[0007] Further, the bottom of the mounting shell is further provided with a contact protection shell, the contact protection shell is slidably installed on the bottom of the mounting shell, and the top of the contact protection shell is provided with an outwardly expanded protruding edge.
[0008] Further, the bottom of the mounting shell is provided with a gasket around the contact protection shell.
[0009] Further, the travel switch is a contact switch.
[0010] Further, the grounding control circuit is provided with an emergency stop switch, a power switch and the upper-mounted control relay, and a buzzer indicator is connected in parallel across the upper-mounted control relay.
[0011] Further, the grounding safety device is provided with a male plug, the grounding control circuit is provided with a female socket, and the male plug and the female socket are electrically connected in plug connection.
[0012] Further, the upper-mounted relay is further electrically connected with a power distribution circuit, the power distribution circuit is provided with an incoming copper bar, a relay loop is connected in parallel across the incoming copper bar, and the relay loop is connected with the upper-mounted control relay and an attraction coil.
[0013] Further, the power distribution circuit is further provided with a contact, and the attraction coil controls attraction of the contact.
[0014] Further, the power distribution circuit is further connected in parallel with an input indicator, a load end, an output indicator and a transformer.
[0015] Beneficial effects
[0016] Compared with the prior art, the technical scheme has the following beneficial effects:
[0017] The technical scheme provided by the utility model discloses a travel switch is installed on the proper position of the grounding rod to detect the grounding degree of the grounding rod, a relay is added in the electric appliance system, the relay is controlled to attract and release through the travel switch, then the on-off of the large current circuit is controlled, the safety protection of the circuit electric appliance and the operator is realized, the main body of the grounding device is the grounding rod, the travel switch fixing plate is welded on the proper position, the travel switch is fixed on the fixing plate, and the installation shell is added above the travel switch fixing plate, the travel switch is connected with the relay, the indicator lamp is connected with the relay to indicate the grounding degree of the grounding rod, the travel switch controls the relay, the relay controls the large current circuit, and the safety protection of the circuit is realized. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structure schematic view of the grounding safety device of the utility model embodiment 1.
[0019] Figure 2 It is a sectional view of the grounding safety device of the utility model embodiment 1.
[0020] Figure 3 It is a schematic view of the grounding control circuit of the utility model embodiment 1.
[0021] Figure 4 It is a schematic view of the power distribution circuit of the utility model embodiment 1. DETAILED DESCRIPTION
[0022] In order to make the technical scheme of the utility model more clear, the utility model will be further described in detail below in combination with the drawings and specific embodiments. Embodiment 1
[0023] In combination with the drawings Figures 1-4 A system composed of a grounding safety device and a grounding control circuit, composed of a grounding safety device 1 and a grounding control circuit 2 cooperating with the grounding safety device,
[0024] The grounding safety device 1 comprises a grounding spike 11, a fixed plate 12 is fixedly arranged on the grounding spike 11, the fixed plate 12 is sleeved on the grounding spike 11, and the fixed plate 12 is tightly fixed on the grounding spike 11 and cannot move relative to the grounding spike 11, a travel switch 13 is fixedly arranged on the fixed plate 12, the travel switch 13 is provided with a travel contact, the travel switch 13 is in an open state when the travel contact is compressed and pressed in the travel switch 13, and the travel switch 13 is in a disconnected state when the travel contact is in an extended state, and the travel switch 13 is installed with the travel contact of the travel switch facing the direction of the grounding spike 11 inserted into the ground.
[0025] The fixed plate 12 is provided with a mounting shell 14, the mounting shell 14 covers the travel switch 13, the mounting shell 14 cooperates with the fixed plate 12 to protect the travel switch 13, one end of the grounding spike 11 is in a pointed structure, and the other end is in a handle structure, and the pointed structure of the grounding spike 11 is used for inserting the grounding spike 11 into the ground.
[0026] A contact protection shell 15 is sleeved on the travel contact of the travel switch 13 at the bottom of the mounting shell 14, the contact protection shell 15 slides at the bottom of the mounting shell 14, and the contact protection shell 15 prevents dust from entering the travel switch due to long-time contact of the travel contact with the ground.
[0027] The part of the contact protection shell 15 in the mounting shell 14 is provided with an outwardly expanded protruding edge for preventing the contact protection shell 15 from coming out of the mounting shell 14, and a gasket can be further arranged around the contact protection shell 15 at the bottom of the mounting shell 14 to prevent the ground from excessively pressing the travel switch 13 when the grounding spike 11 is inserted into the ground.
[0028] The travel contact of the travel switch 13 is elastic, and an elastic member is arranged in the travel switch 13 to ensure that the travel contact is in an extended state under stress.
[0029] The travel switch 13 is preferably a contact switch, the travel contact is in contact with the ground after the grounding spike 11 is inserted into the ground, and the travel contact is pressed by the reverse force of the ground to make the travel contact contract, so that the travel switch 13 is maintained in a triggered state.
[0030] The ground safety device is provided with a wire and a male plug installed on the wire, and the ground safety device is directly connected to a circuit used in cooperation with the ground safety device through the plug type connection structure.
[0031] The ground control circuit is a direct current circuit, and the positive and negative poles of the direct current circuit are connected to the positive and negative poles of a direct current power supply. The direct current power supply is preferably a 24V direct current power supply. The direct current circuit is sequentially provided with an emergency stop switch S1, a power switch S9, and an upper control relay KM4. The direct current circuit is connected to a female socket, and the female socket is used for inserting the male plug of the ground safety device, so as to electrically connect the contact switch to the ground control circuit. The female socket in the direct current circuit is preferably a three-position industrial socket. The male plug of the ground safety device is inserted into the female socket in the direct current circuit, so as to connect the ground safety device to the direct current circuit. At this time, the ground safety device functions like a switch. When the travel switch 13 is in the open state, the ground control circuit is in the normal return flow state. When the travel switch 13 is in the disconnected state, the ground control circuit is in the disconnected warning state. The positive and negative poles of the upper control relay KM4 are connected in parallel with a buzzer indicator H17, which is used to timely respond to the state of the travel switch 13 of the ground safety device.
[0032] The upper control relay KM4 is used to control the power distribution circuit. The upper control relay KM4 is used in cooperation with the power distribution circuit, so that when the travel switch 13 in the ground control circuit is in the retracted state, it represents that the grounding spike 11 is in the normal grounding state. At this time, the power distribution circuit is normally powered. When the travel switch 13 is in the extended state, it represents that the grounding spike 11 fails to normally ground. At this time, the ground control circuit makes the power distribution circuit disconnected through the upper control relay KM4, and the power distribution is no longer performed.
[0033] The power distribution circuit is an alternating current circuit. The power distribution circuit includes a copper bar for providing alternating current. The power distribution circuit is connected in parallel with a relay circuit. The relay circuit is connected to the upper control relay KM4. The relay circuit is also provided with an attract coil KM1. The upper control relay KM4 on the relay circuit controls the attract coil KM1 to attract. When the ground control circuit is in the normal grounding state, the ground control circuit supplies power to the upper control relay KM4. At this time, the upper control relay KM4 of the ground control circuit synchronously triggers the upper control relay KM4 of the relay, and the upper control relay KM4 on the relay circuit synchronously controls the attract coil KM1 to be powered.
[0034] The power distribution circuit is provided with a contact KM1. The attract coil KM1 is used to control the contact KM1 to attract. After the attract coil KM1 is powered, the contact KM1 is attracted. At this time, the relay circuit is powered to make the power distribution circuit normally operate.
[0035] The distribution circuit is also connected in parallel with an input indicator lamp, which is used to indicate the state of the introduced copper bar.
[0036] The distribution circuit is also connected in parallel with a transformer T1, which can be connected with a panel socket and an indoor lighting circuit, and supplies power to the panel socket and the indoor lighting circuit.
[0037] First, the grounding safety device controls the grounding control circuit, and then the grounding control circuit controls the distribution circuit, so that when the grounding bolt 11 fails to normally ground, the distribution circuit cannot distribute power, ensuring the safety of the distribution state, and the buzzer indicator H17 on the grounding control circuit can timely reflect the state of the grounding safety device, which is simple, clear, safe and efficient.
[0038] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A system comprising a grounding safety device and a grounding control circuit, characterized in that, It includes a grounding safety device and a grounding control circuit. The grounding safety device is electrically connected to the grounding control circuit. The grounding safety device includes a grounding rod, on which a limit switch is provided. The limit switch has a limit contact located on the side of the grounding rod that is inserted into the ground. The grounding control circuit is equipped with an upper-mounted control relay.
2. The system comprising a grounding safety device and a grounding control circuit according to claim 1, characterized in that, A fixing plate is fixedly provided on the grounding rod, the limit switch is fixedly provided on the fixing plate, and a mounting shell covering the limit switch is also provided on the fixing plate.
3. A system comprising a grounding safety device and a grounding control circuit according to claim 2, characterized in that, The bottom of the mounting housing is also provided with a contact protection shell, which is slidably installed on the bottom of the mounting housing, and the top of the contact protection shell is provided with an outwardly flared protruding edge.
4. A system comprising a grounding safety device and a grounding control circuit according to claim 3, characterized in that, The bottom of the mounting housing is provided with a pad surrounding the contact protection housing.
5. A system comprising a grounding safety device and a grounding control circuit according to claim 1, characterized in that, The limit switch is a contact switch.
6. A system comprising a grounding safety device and a grounding control circuit according to claim 1, characterized in that, The grounding control circuit is equipped with an emergency stop switch, a power switch, and the upper-mounted control relay. A buzzer indicator is also connected in parallel across the two ends of the upper-mounted control relay.
7. A system comprising a grounding safety device and a grounding control circuit according to claim 6, characterized in that, The grounding safety device is equipped with a male plug, and the grounding control circuit is equipped with a female socket. The male plug is plugged into and electrically connected to the female socket.
8. A system comprising a grounding safety device and a grounding control circuit according to claim 1, characterized in that, The upper control relay is also electrically connected to a power distribution circuit. The power distribution circuit is provided with an inlet copper busbar. A relay circuit is connected in parallel to the inlet copper busbar. The upper control relay and the energizing coil are connected to the relay circuit.
9. A system comprising a grounding safety device and a grounding control circuit according to claim 8, characterized in that, The power distribution circuit is also equipped with contacts, and the coil controls the contacts to close.
10. A system comprising a grounding safety device and a grounding control circuit according to claim 9, characterized in that, The power distribution circuit also includes an input indicator light, a load terminal, an output indicator light, and a transformer connected in parallel.