Grounding protection device for SFC system
By designing a combination of base, height adjustment frame and grounding component, the problem of existing grounding protection equipment being unable to simultaneously connect conductors of different heights is solved, achieving flexible grounding and timely leakage monitoring, thus improving the safety of electrical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-20
AI Technical Summary
Existing grounding protection equipment is difficult to flexibly connect synchronously with grounding conductors at different heights, resulting in poor current conduction and increasing the risk of electrical accidents.
A grounding protection device including a base, an adjustable height frame, and a grounding component was designed. By combining the adjustable height tooth plate and the grounding rod, the conductor can be flexibly grounded to the earth. It is also equipped with a monitoring unit and an alarm unit to detect leakage or short circuit in a timely manner.
It enables flexible grounding protection for grounding conductors at different heights, reduces maintenance difficulty, and improves the safety of electrical equipment through monitoring and warning functions.
Smart Images
Figure CN224021068U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grounding protection for electrical equipment, and in particular to a grounding protection device for SFC systems. Background Technology
[0002] In the field of electrical safety, grounding protection devices are of paramount importance. Currently, conventional grounding protection devices have many shortcomings in practical applications. On the one hand, with the increasing complexity of building electrical systems and the diversification of industrial equipment, the installation height of grounding conductors varies.
[0003] Existing grounding protection devices often have fixed structures, making it difficult to flexibly and synchronously connect with grounding conductors at different heights. When connecting grounding conductors at higher or lower positions is required, a significant amount of time must be spent adjusting the equipment or using additional auxiliary tools, resulting in cumbersome and inefficient operations. Furthermore, when grounding conductors at different heights experience electrical anomalies such as leakage or surges, the inability of existing devices to effectively connect synchronously leads to poor current conduction, preventing the timely introduction of dangerous currents to the ground. This significantly increases the risk of electrical accidents, threatening personnel lives and equipment safety, and urgently requires improvement. Utility Model Content
[0004] Therefore, the technical problem to be solved by this utility model is that existing grounding protection devices are difficult to flexibly achieve synchronous connection with grounding conductors of different heights.
[0005] The above-mentioned technical problems are solved by the following technical solution: a grounding protection device for an SFC system, comprising a base disposed on the ground; a height adjustment frame, comprising a pedal, a height adjustment toothed plate, and a moving bar, wherein the pedal and the height adjustment toothed plate are movably disposed on the top of the base, and the height adjustment toothed plate passes through the pedal, and the moving bar connects the pedal and the height adjustment toothed plate; wherein the height adjustment toothed plate connects the base and a conductor; and a grounding component, comprising a swinging component and a grounding rod, wherein the swinging component connects the grounding rod and the base, and the grounding rod is grounded.
[0006] In a preferred embodiment of the grounding protection device for SFC system of this utility model: flange plates are symmetrically fixedly connected to both sides of the bottom of the base, and a groove is provided on one side wall. A first rotating shaft is fixedly inserted into the groove. The first rotating shaft extends to the side walls of the base adjacent to the groove, and a first sliding block is symmetrically fixedly connected to the side walls.
[0007] In a preferred embodiment of the grounding protection device for SFC system of this utility model: a connecting boss is fixedly connected to the top of the base; second sliding blocks are symmetrically fixedly connected to the connecting boss and the corresponding side walls of the first sliding block; the first and second sliding blocks are on the same plane; anti-detachment plates are fixedly connected side-by-side between the first and second sliding blocks on the same side; a stabilizing block is fixedly connected to the side of the connecting boss away from the groove; the stabilizing block is slidably inserted into the height adjustment groove on the side wall of the height adjustment tooth plate; a cover plate is fixedly connected to the end of the stabilizing block; a first spring is also fixedly connected to the top of the second sliding block; a receiving groove is also provided on the top of the base; the height adjustment tooth plate can be inserted into the receiving groove; and the connecting boss is located between the receiving groove and the groove.
[0008] In a preferred embodiment of the grounding protection device for SFC system of this utility model: a platform is fixedly connected to the top of the height adjustment tooth plate, and a sleeve is fixedly connected to the top of the platform; a lifting member is slidably inserted into the sleeve, the lifting member includes an arc-shaped guide plate and a slide rod fixed in the middle of its outer arc surface, a push plate is fixedly sleeved on the outside of the slide rod, and a second spring is sleeved on the slide rod at the bottom of the push plate, with the two ends of the second spring fixed to the push plate and the inner wall of the bottom end of the sleeve, respectively.
[0009] In a preferred embodiment of the grounding protection device for SFC system of this utility model: an anti-disengagement hook is slidably inserted into the top of the platform. The anti-disengagement hook includes a connecting section, an arc-shaped section, and a disengagement section. The connecting section and the disengagement section are fixedly connected parallel to each other at both ends of the arc-shaped section and face the same direction. The length of the connecting section is less than the length of the disengagement section, and the connecting section is always slidably inserted into one side of the platform. The conductor is fixedly clamped between the arc-shaped section and the arc-shaped guide plate.
[0010] In a preferred embodiment of the grounding protection device for an SFC system of this utility model: the movable strip is symmetrically arranged and has a through hole. The first sliding block and the second sliding block are slidably inserted into the through hole. The movable strip is slidably clamped between the anti-detachment plates on the same side. An external protrusion is fixedly connected to the top of the side of the movable strip adjacent to the through hole. A second rotating shaft is fixedly connected to the external protrusion. A pusher bar is rotatably sleeved on the second rotating shaft. The pusher bars on both sides can be engaged in the slots opened on both sides of the height adjustment tooth plate. A first hinge block is also hinged to the top of the movable strip.
[0011] In a preferred embodiment of the grounding protection device for an SFC system of this utility model: the pedal includes a center plate and a pressure plate, and a connecting plate is fixedly connected between the center plate and the pressure plate; a docking block is fixedly connected to the bottom of the center plate, and second hinge blocks are fixedly connected to both sides of the center plate near the connecting plate. The first hinge block is hinged to the second hinge block, and the top of the connecting boss is also hinged to the docking block. The top of the first spring is fixedly connected to the bottom of the center plate; a through hole is also provided on the center plate, and the height adjustment tooth plate slides through the through hole.
[0012] In a preferred embodiment of the grounding protection device for SFC system of this utility model: one end of the swing member can be rotatably placed in the groove, and the first rotating shaft can be rotatably inserted into the swing member. A rotating clamping groove is formed in the middle of the other end of the swing member. An adjusting sleeve is rotatably inserted into the rotating clamping groove, and a threaded hole is opened in the adjusting sleeve.
[0013] In a preferred embodiment of the grounding protection device for SFC system of this utility model: the grounding rod includes a guide rod and a guide plate, and the guide rod is threaded into a threaded hole.
[0014] In a preferred embodiment of the grounding protection device for an SFC system described in this utility model, it further includes a monitoring unit comprising a terminal box, a surge protector, and a residual current device (RCD). The terminal box is connected to metal pipes, metal components, and the metal casing of electrical equipment within the building via wiring, and is also connected to the conductor. The surge protector is installed at the power supply line or signal line inlet, with its input end connected to the line and its output end connected to the conductor, and then connected to the grounding device. The RCD is installed at the front end of the power supply line of the electrical equipment, and its grounding end is connected to the conductor. The warning unit includes a fault indicator and a receiving device. The fault indicator is connected to the conductor and is connected to the receiving device via a signal transmission line.
[0015] The beneficial effects of this utility model are as follows:
[0016] The base serves as a stable support point for this device, directly fixed to the ground, ensuring the overall stability of the grounding component and the height adjustment frame. By stepping on the pedal, the height adjustment tooth plate can be raised and fixedly connected with the required grounding wire. Then, guided by the base, it connects with the grounding component, realizing the grounding of the wire to the earth. The height adjustment tooth plate and grounding component, which can flexibly adjust their height, can meet the grounding protection needs of grounding wires at different heights and different ground environments, reducing the difficulty of maintenance.
[0017] Furthermore, through the cooperation of the monitoring unit and the warning unit, leakage or short circuit can be detected in a timely manner and an alarm can be issued to prevent people from being electrocuted. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:
[0019] Figure 1 An overall structural diagram of the grounding protection device for the SFC system is shown;
[0020] Figure 2 This diagram shows a structural view of the base of the grounding protection device used in the SFC system from a certain perspective.
[0021] Figure 3 This diagram shows another view of the base structure of the grounding protection device used in the SFC system;
[0022] Figure 4 A structural diagram of the height adjustment toothed plate for the grounding protection device used in the SFC system is shown.
[0023] Figure 5 A schematic diagram of the movable bar structure for a grounding protection device used in an SFC system is shown.
[0024] Figure 6 A diagram showing the pedal mounting for a grounding protection device used in an SFC system is provided.
[0025] Figure 7 A structural diagram of the grounding component for a grounding protection device used in an SFC system is shown.
[0026] Figure 8 A connection diagram of the monitoring unit and warning unit for the grounding protection device used in the SFC system is shown. Detailed Implementation
[0027] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0028] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.
[0029] Reference Figures 1 to 8 This embodiment provides a grounding protection device for an SFC system, characterized in that it includes a base 100, which is disposed on the ground.
[0030] The height adjustment frame 200 includes a pedal 201, a height adjustment toothed plate 202, and a moving bar 203. The pedal 201 and the height adjustment toothed plate 202 are both movably mounted on the top of the base 100, and the height adjustment toothed plate 202 passes through the pedal 201. The moving bar 203 connects the pedal 201 and the height adjustment toothed plate 202.
[0031] Among them, the height adjustment plate 202 connects the base 100 and the wire A.
[0032] The grounding component 300 includes a swinging component 301 and a grounding rod 302. The swinging component 301 connects the grounding rod 302 and the base 100, and the grounding rod 302 is grounded.
[0033] Furthermore, conductor A is connected to grounding rod 302 through height adjustment tooth plate 202 and base 100 to achieve grounding. Base 100, height adjustment tooth plate 202 and grounding component 300 are all made of conductive metal material to ensure both rigidity and circuit continuity.
[0034] As an optional embodiment, flange plates 101 are symmetrically fixedly connected to both sides of the bottom of the base 100. A groove B is provided on one side wall of the flange plate 101, and bolt holes are provided on the flange plate 101, which can be fixed to the ground or other fasteners by bolts.
[0035] A first rotating shaft 102 is fixedly inserted into the groove B. The first rotating shaft 102 extends to the side walls of the base 100 on both sides adjacent to the groove B. The two sides are fixed by bolts, and the two side walls are also symmetrically fixed with first sliding blocks 103.
[0036] A connecting boss 104 is fixedly connected to the top of the base 100. A second sliding block 104a is symmetrically fixedly connected to the connecting boss 104 and the corresponding side walls of the first sliding block 103. The first sliding block 103 and the second sliding block 104a can be cylindrical or rectangular. In this embodiment, they are preferably rectangular. The first sliding block 103 and the second sliding block 104a are on the same plane. An anti-detachment plate 103a is fixedly connected side by side between the first sliding block 103 and the second sliding block 104a on the same side.
[0037] Specifically, two sets of first sliding blocks 103 are symmetrically connected to the side wall near the bottom of the base 100, and two sets of second sliding blocks 104a are symmetrically connected to the opposite side walls of the connecting boss 104. The four sets are located on the same plane. Preferably, two sets of anti-detachment plates 103a are vertically installed on one side of the first sliding block 103 and the second sliding block 104a. There are a total of four anti-detachment plates 103a on the left and right sides. The outermost anti-detachment plate 103a is installed at the end of the first sliding block 103 and the second sliding block 104a by micro bolts, while the inner one is fixed by welding. The function of the anti-detachment plate 103a is to restrict the moving strip 203 and prevent it from moving left and right.
[0038] A stabilizing insert 104b is fixedly connected to the side of the connecting boss 104 away from the groove B. The stabilizing insert 104b is slidably inserted into the height adjustment groove C on the side wall of the height adjustment tooth plate 202. A cover plate 104b-1 is fixedly connected to the end of the stabilizing insert 104b. The height adjustment tooth plate 202 can slide up and down along the connecting boss 104. The cover plate 104b-1 can ensure that the cover plate 104b-1 can fall off the connecting boss 104.
[0039] The top of the second sliding block 104a is also fixedly connected to the first spring T1, and the top of the base 100 is also provided with a receiving groove 105. The height adjustment tooth plate 202 can be inserted into the receiving groove 105. When the height adjustment tooth plate 202 needs to be lowered, part of the height adjustment tooth plate 202 can be inserted into the receiving groove 105. The connecting boss 104 is located between the receiving groove 105 and the groove B.
[0040] The top of the height adjustment toothed plate 202 is fixedly connected to a platform 202a, and the top of the platform 202a is fixedly connected to a sleeve 202b.
[0041] A lifting component 202c is slidably inserted into the sleeve 202b. The lifting component 202c includes an arc-shaped guide plate 202c-1 and a slide rod 202c-2 fixed in the middle of its outer arc surface. A push plate 202c-3 is fixedly sleeved on the outside of the slide rod 202c-2. A second spring T2 is sleeved on the slide rod 202c-2 at the bottom of the push plate 202c-3. The two ends of the second spring T2 are fixed to the push plate 202c-3 and the inner wall of the bottom end of the sleeve 202b, respectively.
[0042] In the initial state, the second spring T2 pushes the arc-shaped guide plate 202c-1 upward through the push plate 202c-3. At this time, the push plate 202c-3 is flush with the top opening of the sleeve 202b. When it is necessary to install the wire A, the wire A will slightly press down on the inner arc surface of the arc-shaped guide plate 202c-1. At this time, the second spring T2 will slightly contract. If the wire A floats up and down, the second spring T2 will change the lifting height of the arc-shaped guide plate 202c-1 according to the state of the wire A, ensuring that the arc-shaped guide plate 202c-1 is always in contact with the wire A.
[0043] The top of the platform 202a is also slidably connected with an anti-disengagement hook 202d. The anti-disengagement hook 202d includes a connecting section 202d-1, an arc-shaped section 202d-2, and a disengagement section 202d-3. The connecting section 202d-1 and the disengagement section 202d-3 are fixedly connected in parallel to both ends of the arc-shaped section 202d-2 and have the same orientation.
[0044] The length of the connecting section 202d-1 is less than the length of the disengaging section 202d-3, and the connecting section 202d-1 is always slidably inserted into one side of the platform 202a. The connecting section 202d-1 is provided with external threads, and the bottom of the platform 202a is provided with bolts. By changing the tightening height of the bolts, the height at which the connecting section 202d-1 extends from the top of the platform 202a can be changed.
[0045] The conductor A is fixedly clamped between the arc-shaped section 202d-2 and the arc-shaped guide plate 202c-1.
[0046] Specifically, during use, when the connecting section 202d-1 is raised to its highest position, the end of the disengaging section 202d-3 is just disengaged from the outer wall of the arc-shaped guide plate 202c-1. The anti-disengagement hook 202d can rotate around the connecting section 202d-1 as the rotation center, and the wire A can be inserted between the arc-shaped section 202d-2 and the arc-shaped guide plate 202c-1.
[0047] Furthermore, after wire A is inserted, the disengagement section 202d-3 of the anti-disengagement hook 202d is rotated back to align with the anti-deviation groove on the outer wall of the arc-shaped guide plate 202c-1, and then inserted downwards. The connecting section 202d-1 moves downwards simultaneously until the arc-shaped section 202d-2 and the arc-shaped guide plate 202c-1 completely clamp wire A. Finally, the bolts at the bottom of the platform 202a are tightened upwards until they abut against the bottom of the platform 202a, and wire A is then connected and fixed to the height adjustment tooth plate 202.
[0048] The movable strip 203 is symmetrically arranged and has a through hole 203a. The first sliding block 103 and the second sliding block 104a are slidably inserted into the through hole 203a. The movable strip 203 is slidably clamped between the anti-detachment plates 103a on the same side.
[0049] The top of the side of the moving bar 203 adjacent to the perforation 203a is fixedly connected to an outer protrusion 203b. The outer protrusion 203b is fixedly connected to a second rotating shaft 203c. The second rotating shaft 203c is rotatably sleeved with a pusher bar 203d. The pusher bars 203d on both sides can be engaged in the slots 202e opened on both sides of the height adjustment tooth plate 202. The moving bar 203 as a whole can move up and down along the first sliding block 103 and the second sliding block 104a.
[0050] The top of the movable bar 203 is also hinged to a first hinge block 203e.
[0051] The pedal 201 includes a center plate 201a and a pressure plate 201b, and a connecting plate 201c is fixedly connected between the center plate 201a and the pressure plate 201b.
[0052] A docking block 201a-1 is fixedly connected to the bottom of the center plate 201a. A second hinge block 201a-2 is also fixedly connected to both sides of the center plate 201a near the connecting plate 201c. The first hinge block 203e is hinged to the second hinge block 201a-2, and the top of the connecting boss 104 is also hinged to the docking block 201a-1. The top of the first spring T1 is fixedly connected to the bottom of the center plate 201a.
[0053] The center plate 201a also has a through hole 201a-3, through which the height adjustment toothed plate 202 slides.
[0054] Reference Figure 6 In the initial state, the first springs T1 on both sides can keep the center plate 201a, or the entire pedal 201, in a horizontal state. When the worker steps on or presses one side of the pressure plate 201b, assuming the left pressure plate 201b is stepped on, the center plate 201a will shift to the left around the hinge point of the docking block 201a-1 and the top of the connecting boss 104. At this time, the left first spring T1 contracts, the right first spring T1 is stretched, and the left moving bar 203 drives the push bar 203d connected to it to move down.
[0055] It should be noted that the locking and fixing method between the push bar 203d and the slot 202e is the same as that of the ratchet and pawl. In this solution, the push bar 203d can only allow the height adjustment plate 202 to move upward, but cannot move downward. That is, the height adjustment plate 202 can only push the push bar 203d upward, and the movement is relatively small, but cannot push the push bar 203d downward.
[0056] Furthermore, after the lowered push bar 203d reaches its lowest position, it will re-engage in the corresponding slot 202e. Meanwhile, the right moving bar 203 will move upward along with the right pressure plate 201b. The push bar 203d connected to it will push the height adjustment plate 202 upward by engaging with the right slot 202e. At this time, the height adjustment plate 202 will be raised as a whole.
[0057] Furthermore, similarly, stepping on the right pressure plate 201b will push the left push bar 203d to adjust the high tooth plate 202, thus achieving the purpose of alternately raising and adjusting the high tooth plate 202 by pushing the left and right push bars 203d.
[0058] One end of the swing member 301 can be rotatably placed in the groove B, and the first rotating shaft 102 can be rotatably inserted into the swing member 301. A rotating clamping groove 301a is formed in the middle of the other end of the swing member 301. An adjusting sleeve 301b is rotatably inserted into the rotating clamping groove 301a. A threaded hole 301b-1 is opened in the adjusting sleeve 301b.
[0059] The grounding rod 302 includes a guide rod 302a and a guide plate 302b. The guide rod 302a is threaded into the threaded hole 301b-1.
[0060] During use, if the soil or ground in the grounding area is higher than the base 100, the swinging part 301 can be lifted up to raise the adjusting sleeve 301b so that it is at the same height as the soil or ground in the grounding area.
[0061] Furthermore, by rotating the guide rod 302a, the depth at which the guide piece 302b is inserted into the soil can be changed. Multiple sets of lines can also be connected to the guide piece 302b, which can be connected to the underground metal guide rod used for grounding protection.
[0062] Reference Figure 8 The device also includes a monitoring unit 400, which includes a terminal box 401, a surge protector 402 and a residual current device 403. The terminal box 401 is connected to metal pipes, metal components and metal casings of electrical equipment in the building via wiring, and is also connected to wire A.
[0063] Surge protector 402 is installed at the power supply line or signal line entrance. Its input terminal is connected to the line, and its output terminal is connected to conductor A, which in turn is connected to grounding component 300.
[0064] The residual current device 403 is installed at the front end of the power supply line of the electrical equipment, and its grounding terminal is connected to conductor A.
[0065] The warning unit 500 includes a fault indicator 501 and a receiving device 502. The fault indicator 501 is connected to the wire A and is connected to the receiving device 502 through a signal transmission line.
[0066] Specifically, terminal box 401 preferably adopts an equipotential bonding terminal box, which has multiple wiring terminals for connecting metal pipes, metal components and metal housings of electrical equipment in the SFC system, so that these metal components are at the same potential, eliminating the safety hazards caused by potential difference, and then connecting to grounding wire A.
[0067] Furthermore, if electrical equipment experiences a leakage current, the leakage current will increase instantaneously. At this time, the leakage current protector 403 detects that the current in the power supply line exceeds the set threshold, and quickly cuts off the power supply to prevent the leakage current from continuing to endanger the safety of personnel and equipment.
[0068] Meanwhile, the leakage current is conducted through conductor A to grounding component 300 and finally into the ground. Due to the occurrence of the fault current, fault indicator 501 detects the abnormal grounding line current and immediately sends an alarm signal to receiving device 502 through the signal transmission line, alerting staff that a grounding fault related to leakage has occurred.
[0069] Furthermore, in the event of a lightning strike or transient overvoltage, the surge protector 402 responds rapidly. It limits the voltage amplitude and directs the resulting surge current through conductor A to the grounding component 300, discharging it into the ground and protecting downstream electrical equipment from excessive voltage surges. During this process, excessive surge current may also cause changes in the grounding line current. The fault indicator 501 detects this anomaly and sends an alarm signal to the receiving device 502, informing the system of an abnormal condition caused by overvoltage.
[0070] Furthermore, if the grounding line experiences open circuits or short circuits due to aging, external damage, or other reasons, the fault indicator 501 continuously monitors the grounding line current. Once an abnormal current is detected, it immediately determines that a grounding fault has occurred and sends an alarm signal to the receiving device 502 via the signal transmission line. At this time, the grounding function of the entire grounding protection system is affected, which may lead to the current not being able to be properly conducted to the ground under conditions such as leakage or overvoltage, threatening the safety of equipment and personnel. Personnel need to promptly investigate and repair the grounding line fault.
[0071] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.
Claims
1. A grounding protection device for an SFC system, characterized in that: include, A base (100) is disposed on the ground; The height adjustment frame (200) includes a pedal (201), a height adjustment toothed plate (202), and a moving bar (203). The pedal (201) and the height adjustment toothed plate (202) are both movably disposed on the top of the base (100), and the height adjustment toothed plate (202) passes through the pedal (201). The moving bar (203) connects the pedal (201) and the height adjustment toothed plate (202). The height adjustment toothed plate (202) connects the base (100) and the wire (A); The grounding component (300) includes a swinging component (301) and a grounding rod (302), wherein the swinging component (301) connects the grounding rod (302) and the base (100), and the grounding rod (302) is grounded.
2. The grounding protection device for an SFC system according to claim 1, characterized in that: Flange plates (101) are symmetrically fixedly connected to both sides of the bottom of the base (100). A groove (B) is provided on one side wall of the base (100). A first rotating shaft (102) is fixedly inserted into the groove (B). The first rotating shaft (102) extends to the side walls of the base (100) on both sides adjacent to the groove (B). A first sliding block (103) is also symmetrically fixedly connected to the side walls on both sides.
3. The grounding protection device for an SFC system according to claim 2, characterized in that: The base (100) is fixedly connected to the top of a connecting boss (104). The connecting boss (104) and the first sliding block (103) are symmetrically fixedly connected to the side walls of the corresponding sides of the second sliding block (104a). The first sliding block (103) and the second sliding block (104a) are on the same plane. On the same side, the first sliding block (103) and the second sliding block (104a) are fixedly connected side by side to an anti-detachment plate (103a). A stabilizing plug (104b) is fixedly connected to the side of the connecting boss (104) away from the groove (B). The stabilizing plug (104b) is slidably inserted into the height adjustment groove (C) on the side wall of the height adjustment tooth plate (202). A cover plate (104b-1) is fixedly connected to the end of the stabilizing plug (104b). The top of the second sliding block (104a) is also fixedly connected to a first spring (T1), and the top of the base (100) is also provided with a receiving groove (105). The height adjustment tooth plate (202) can be inserted into the receiving groove (105), and the connecting boss (104) is located between the receiving groove (105) and the groove (B).
4. The grounding protection device for an SFC system according to any one of claims 1 to 3, characterized in that: A platform (202a) is fixedly connected to the top of the height adjustment tooth plate (202), and a sleeve (202b) is fixedly connected to the top of the platform (202a); A lifting member (202c) is slidably inserted into the sleeve (202b). The lifting member (202c) includes an arc-shaped guide plate (202c-1) and a slide rod (202c-2) fixed in the middle of its outer arc surface. A push plate (202c-3) is fixedly sleeved on the outside of the slide rod (202c-2). A second spring (T2) is sleeved on the slide rod (202c-2) at the bottom of the push plate (202c-3). The two ends of the second spring (T2) are fixed to the push plate (202c-3) and the inner wall of the bottom end of the sleeve (202b), respectively.
5. The grounding protection device for an SFC system according to claim 4, characterized in that: The top of the platform (202a) is also slidably connected with an anti-disengagement hook (202d). The anti-disengagement hook (202d) includes a connecting section (202d-1), an arc-shaped section (202d-2), and a disengagement section (202d-3). The connecting section (202d-1) and the disengagement section (202d-3) are fixedly connected in parallel to both ends of the arc-shaped section (202d-2) and face the same direction. The length of the connecting segment (202d-1) is less than the length of the disengaging segment (202d-3), and the connecting segment (202d-1) is always slidably inserted into one side of the platform (202a); The conductor (A) is fixedly clamped between the arc-shaped segment (202d-2) and the arc-shaped guide plate (202c-1).
6. The grounding protection device for an SFC system according to claim 3, characterized in that: The movable strip (203) is symmetrically arranged and has a through hole (203a) inside. The first sliding block (103) and the second sliding block (104a) are slidably inserted into the through hole (203a). The movable strip (203) is slidably clamped between the anti-detachment plates (103a) on the same side. An external protrusion (203b) is fixedly connected to the top of the side of the moving strip (203) adjacent to the perforation (203a). A second rotating shaft (203c) is fixedly connected to the external protrusion (203b). A pusher strip (203d) is rotatably sleeved on the second rotating shaft (203c). The pusher strips (203d) on both sides can be engaged in the slots (202e) opened on both sides of the height adjustment toothed plate (202). The top end of the moving bar (203) is also hinged to a first hinge block (203e).
7. The grounding protection device for an SFC system according to claim 6, characterized in that: The pedal (201) includes a center plate (201a) and a pressure plate (201b), and a connecting plate (201c) is fixedly connected between the center plate (201a) and the pressure plate (201b); The bottom of the center plate (201a) is fixedly connected to a docking block (201a-1), and the two sides of the center plate (201a) near the connecting plate (201c) are also fixedly connected to a second hinge block (201a-2). The first hinge block (203e) is hinged to the second hinge block (201a-2), and the top of the connecting boss (104) is also hinged to the docking block (201a-1). The top of the first spring (T1) is fixedly connected to the bottom of the center plate (201a). The center plate (201a) is also provided with a through hole (201a-3), and the height adjustment tooth plate (202) slides through the through hole (201a-3).
8. The grounding protection device for an SFC system according to any one of claims 2, 3, 6, and 7, characterized in that: One end of the swing member (301) can be rotatably placed in the groove (B), and the first rotating shaft (102) can be rotatably inserted into the swing member (301). A rotating clamping groove (301a) is formed in the middle of the other end of the swing member (301). An adjusting sleeve (301b) is rotatably inserted into the rotating clamping groove (301a). A threaded hole (301b-1) is opened in the adjusting sleeve (301b).
9. The grounding protection device for an SFC system according to claim 8, characterized in that: The grounding rod (302) includes a guide rod (302a) and a guide plate (302b), wherein the guide rod (302a) is threaded into a threaded hole (301b-1).
10. The grounding protection device for an SFC system according to any one of claims 1-3, 5-7 and 9, characterized in that: It also includes, The monitoring unit (400) includes a terminal box (401), a surge protector (402) and a residual current device (403). The terminal box (401) is connected to metal pipes, metal components and metal casings of electrical equipment in the building via wiring, and is also connected to the conductor (A). A surge protector (402) is installed at the power supply line or signal line entrance, with its input end connected to the line and its output end connected to the conductor (A), and then connected to the grounding device (300); A residual current device (403) is installed at the front end of the power supply line of the electrical equipment, and its grounding terminal is connected to the conductor (A); The warning unit (500) includes a fault indicator (501) and a receiving device (502), wherein the fault indicator (501) is connected to the wire (A) and is connected to the receiving device (502) through a signal transmission line.