Explosion-proof static grounding clamp
By designing the clamping arm, rotating shaft, and storage stake structure of the explosion-proof electrostatic grounding clamp, the problems of messy stacking and easy damage of grounding wires are solved, and the orderly storage and stable clamping of grounding wires are achieved, thereby enhancing the service life and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN CHENDIAN ELECTRONICS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
AI Technical Summary
In spaces with limited space, haphazardly stacked grounding wires take up space, affect environmental cleanliness, and are easily damaged by being stepped on or pulled during personnel movement and equipment movement. At the same time, traditional grounding clamps are prone to corrosion in harsh environments, affecting conductivity and mechanical strength.
An explosion-proof electrostatic grounding clamp was designed, which adopts a structure of clamping arm, rotating shaft, spring and storage post to realize the storage and stable clamping of the grounding wire. The stability of the grounding connection is detected by magnetic sheet and reed switch, and an audible and visual alarm system is equipped to detect grounding problems in time.
It enables the orderly storage of grounding wires, improves service life and operational safety, ensures the stability of grounding connections and rapid fault detection, and avoids safety accidents and equipment damage.
Smart Images
Figure CN224290137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grounding clamp technology, and in particular to an explosion-proof electrostatic grounding clamp. Background Technology
[0002] Static electricity is ubiquitous in industrial production and daily life. When the charge on the surface of an object cannot be dissipated in time, static electricity accumulates. In places where flammable and explosive materials are present, static electricity accumulation can cause serious safety accidents. In the process of oil extraction, refining, storage, and transportation, the flow, stirring, and filtration of oil products all generate static electricity. During pipeline transportation in oil refineries, friction between oil products and the inner wall of the pipeline accumulates a large amount of static electricity. If it is not discharged in time, it can cause fires or even explosions. Therefore, in order to ensure the safe production of the petrochemical industry, explosion-proof static grounding clamps have become an indispensable safety device. In the extraction, compression, storage, and transportation of natural gas, there are also static electricity hazards. Natural gas itself has flammable and explosive properties. Once static discharge generates a spark, it can cause an explosion. In order to prevent such accidents, explosion-proof static grounding clamps have also been widely used in the natural gas industry.
[0003] The structure of an explosion-proof static grounding clamp consists of clamps, a spring device, a pin, a grounding cable connection end, and an insulated handle. However, in some harsh environments, including humid, salt spray, and acid / alkali corrosive environments, the material of traditional grounding clamps will be corroded, affecting their conductivity and mechanical strength. With the development of materials science, modern explosion-proof static grounding clamps are mostly made of stainless steel and high-strength alloys, which have better corrosion resistance, wear resistance, and conductivity, and can adapt to various harsh working environments, effectively ensuring the service life and grounding effect of the grounding clamp. However, in some places with limited space, the messy stacking of grounding wires will occupy a lot of space, affect the cleanliness of the environment, and is easily trampled and pulled during personnel movement and equipment movement, leading to damage. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an explosion-proof electrostatic grounding clamp, which aims to improve the problem in the prior art where, in some spaces with limited space, the messy stacking of grounding wires occupies a lot of space, affects the cleanliness of the environment, and is easily trampled and pulled during personnel movement and equipment movement, resulting in damage.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an explosion-proof electrostatic grounding clamp, comprising two clamping arms, with two connecting frames fixedly connected to the middle of adjacent sides of each clamping arm, a rotating shaft rotatably connected to the middle of each connecting frame, and a spring fixedly connected to the outer wall of the rotating shaft; a support plate fixedly connected to the bottom rear side of the rear clamping arm, a storage post fixedly connected to the top of the support plate, a U-shaped block fixedly connected to the top front side of the storage post, an L-shaped block slidably connected to the top of the U-shaped block, an electrical plate fixedly connected to the right rear side of the rear clamping arm, a grounding wire fixedly connected to the left side of the electrical plate, a steel pipe grounding electrode fixedly connected to the left side of the grounding wire, and a warning mechanism provided on the rear side of the clamping arm, the warning mechanism being used to provide an audible and visual alarm function.
[0006] As a further description of the above technical solution:
[0007] The warning mechanism includes a magnetic sheet, the front side of which is fixedly connected to the rear right end of the front clamping arm. A reed switch is installed on the inner right end of the circuit board. Two holes are fixedly connected to the rear side of the front clamping arm. Two pins are fixedly connected to the front right end of the rear clamping arm. The front end of the pins engages with the inner wall of the corresponding hole. An indicator light is fixedly connected to the top right side of the circuit board. An alarm is fixedly connected to the top right side of the circuit board near the edge.
[0008] As a further description of the above technical solution:
[0009] A pressing column is fixedly connected to the top of the L-shaped block, and a nameplate is fixedly connected to the right end of the front side of the clamping arm.
[0010] As a further description of the above technical solution:
[0011] An extension grip is fixedly connected to the left side of each of the clamping arms, and an anti-slip sleeve is fixedly connected to the outer wall of each extension grip.
[0012] As a further description of the above technical solution:
[0013] A support plate is fixedly connected to the rear side of the rear clamping arm, and the rear side of the support plate is fixedly connected to the middle of the front side of the receiving pile.
[0014] As a further description of the above technical solution:
[0015] Protective strips are fixedly connected to the opposite sides of the clamping arms, and both protective strips are designed symmetrically.
[0016] As a further description of the above technical solution:
[0017] A warning sign is fixedly connected to the rear side of the circuit board, and an anti-slip groove is provided on the adjacent side of the circuit board.
[0018] As a further description of the above technical solution:
[0019] An indicator is fixedly connected to the top of the storage pile, and a limiting piece is fixedly connected to the bottom front side of the L-shaped block.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the clamping arms are connected by a rotating shaft, and a spring keeps the right side of the clamping arms under constant pressure to achieve a clamping effect. At the same time, the grounding wire is coiled and stored through a storage post, with its end locked into a U-shaped block. By pressing an L-shaped block, the bottom of the L-shaped block is locked with the inner bottom of the U-shaped block to restrict and protect the steel pipe grounding electrode. This avoids the messy stacking and tangling of the grounding wire, making it easy to store and manage, and it can be quickly unfolded when needed.
[0022] 2. In this utility model, the pin penetrates the insulating layer on the surface of the object to form an electrical connection with the conductive part of the grounded object and the engagement with the hole ensures the clamping effect. At this time, the magnetic sheet and the reed switch are close together, and the reed switch closes under the action of the magnetic field, forming a circuit inside the circuit board. When loosening, the magnetic sheet and the reed switch move away, the circuit is short-circuited, the indicator light flashes red light and the alarm starts to sound, so that the grounding connection problem can be detected and dealt with in time. Attached Figure Description
[0023] Figure 1 This is a perspective view of the front side of the clamp arm of the explosion-proof electrostatic grounding clamp proposed in this utility model;
[0024] Figure 2 This is a side view of the spring of the explosion-proof static grounding clamp proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the circuit board of the explosion-proof electrostatic grounding clamp proposed in this utility model;
[0026] Figure 4 This is a split view of the rotating shaft of the explosion-proof electrostatic grounding clamp proposed in this utility model;
[0027] Figure 5 This is a split view of the U-shaped block of the explosion-proof electrostatic grounding clamp proposed in this utility model.
[0028] Legend:
[0029] 1. Clamping arm; 2. Warning mechanism; 201. Magnetic sheet; 202. Reed switch; 203. Hole; 204. Pin; 205. Indicator light; 206. Alarm; 3. Connecting frame; 4. Rotating shaft; 5. Spring; 6. Support plate; 7. Storage post; 8. U-shaped block; 9. L-shaped block; 10. Circuit board; 11. Grounding wire; 12. Steel pipe grounding electrode; 13. Pressing post; 14. Extended grip; 15. Anti-slip sleeve; 16. Support plate; 17. Protective strip; 18. Nameplate; 19. Warning sign; 20. Anti-slip groove; 21. Indicator; 22. Limiting plate. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see the appendix Figure 2 Appendix Figure 4 and attached Figure 5 An embodiment of this utility model provides an explosion-proof electrostatic grounding clamp, comprising two clamping arms 1. Two connecting frames 3 are fixedly connected to the middle of adjacent sides of each clamping arm 1. A rotating shaft 4 is rotatably connected to the middle of the connecting frame 3. A spring 5 is fixedly connected to the outer wall of the rotating shaft 4. A support plate 6 is fixedly connected to the bottom of the rear side of the rear clamping arm 1. A storage post 7 is fixedly connected to the top of the support plate 6. A U-shaped block 8 is fixedly connected to the top of the front side of the storage post 7. An L-shaped block 9 is slidably connected to the top of the U-shaped block 8. An electric plate 10 is fixedly connected to the right end of the rear side of the rear clamping arm 1. A grounding wire 11 is fixedly connected to the left side of the electric plate 10. A steel pipe grounding electrode 12 is fixedly connected to the left side of the grounding wire 11. A warning mechanism 2 is provided on the rear side of the clamping arm 1. The warning mechanism 2 is used to provide an audible and visual alarm function.
[0032] Specifically, each of the two clamping arms 1 has two connecting frames 3 fixedly connected to the middle of its adjacent side to ensure structural stability. A rotating shaft 4 is rotatably connected to the middle of the connecting frame 3. The rotating shaft 4 not only plays a key connecting role but also realizes the rotation function, thereby realizing the clamping function, making it easier for the clamping arms 1 to open and close. A spring 5 is fixedly connected to the outer wall of the rotating shaft 4. The function of the spring 5 is to provide elasticity to ensure that the clamping arms 1 can maintain tension and elasticity during opening and closing, thereby improving the convenience and safety of operation. The support plate 6 enhances the stability of the entire device. The electric plate 10 is responsible for efficiently conducting static electricity, ensuring that static electricity can be discharged quickly and safely. A grounding wire 11 is fixedly connected to the left side of the electric plate 10, and a steel pipe grounding electrode 12 is fixedly connected to the left side of the grounding wire 11, ensuring that static electricity can be effectively conducted to the ground through the grounding wire 11 and the steel pipe grounding electrode 12, thereby minimizing the risk of static electricity accumulation and achieving the ideal explosion-proof effect.
[0033] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 The warning mechanism 2 includes a magnetic sheet 201. The front side of the magnetic sheet 201 is fixedly connected to the rear right end of the front clamping arm 1. A reed switch 202 is installed on the inner right end of the circuit board 10. Two holes 203 are fixedly connected to the rear side of the front clamping arm 1. Two pins 204 are fixedly connected to the front right end of the rear clamping arm 1. The front end of the pins 204 engages with the inner wall of the corresponding hole 203. An indicator light 205 is fixedly connected to the top right side of the circuit board 10. An alarm 206 is fixedly connected to the top right side of the circuit board 10 near the edge.
[0034] Specifically, the front side of the magnetic sheet 201 is fixedly connected to the rear right end of the front clamping arm 1 to ensure stable and synchronized operation. A reed switch 202 is installed on the inner right end of the circuit board 10, which enables accurate detection by utilizing the magnetic induction characteristics of the reed switch 202. The ejector pin 204 can engage with the inner wall of the corresponding hole 203 to ensure clamping stability. The indicator light 205 conveys clear warning information to the user.
[0035] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 An extension handle 14 is fixedly connected to the left side of each clamping arm 1, and an anti-slip sleeve 15 is fixedly connected to the outer wall of each extension handle 14. An indicator 21 is fixedly connected to the top of the storage post 7. A limit piece 22 is fixedly connected to the bottom front side of the L-shaped block 9. A support plate 16 is fixedly connected to the rear side of the rear clamping arm 1, and the rear side of the support plate 16 is fixedly connected to the middle front side of the storage post 7.
[0036] Specifically, the extended grip 14 provides a more convenient operating effect. The outer wall of the extended grip 14 is fixedly connected with anti-slip sleeves 15 to ensure anti-slip properties during use. The indicator 21 facilitates quick identification and operation. The limiting piece 22 can limit the movement range of the L-shaped block 9, prevent the L-shaped block 9 from falling off and ensure the locking effect. The support plate 16 can provide additional support force and enhance overall stability.
[0037] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 A protective strip 17 is fixedly connected to the opposite side of the clamping arm 1. Both protective strips 17 are symmetrically designed. A pressing post 13 is fixedly connected to the top of the L-shaped block 9. A nameplate 18 is fixedly connected to the right end of the front side of the front clamping arm 1. A warning sign 19 is fixedly connected to the rear side of the circuit board 10. An anti-slip groove 20 is provided on the adjacent side of the circuit board 10.
[0038] Specifically, the protective strip 17 ensures the overall protective effect of the structure, the top of the L-shaped block 9 is fixedly connected to the pressing column 13 for easy application of force and to ensure the accuracy of operation, the nameplate 18 enables quick identification and understanding of relevant information, and the warning sign 19 reminds users to pay attention to safety during use and avoid accidents.
[0039] Working principle: The clamping arms 1 are connected through the rotating shaft 4, and the spring 5 keeps the right side of the clamping arms 1 under constant pressure to achieve the clamping effect. This ensures that the grounding clamp is stably clamped on the object that needs to be grounded, ensuring the stability of the grounding connection. This effectively introduces static electricity into the ground, preventing static electricity accumulation from causing safety accidents. At the same time, the grounding wire 11, which is used to introduce static electricity into the ground, is coiled and stored through the storage post 7. Then, the end of the grounding wire 11 is engaged in the U-shaped block 8, and the bottom of the L-shaped block 9 is engaged with the inner bottom of the U-shaped block 8 to complete the restriction and protection of the steel pipe grounding electrode 12. The grounding wire 11 is coiled and stored through the storage post 7, so that the grounding wire 11 can be neatly wound on the storage post 7, avoiding the messy stacking and tangling of the grounding wire 11. This not only facilitates storage and management, but also allows for quick unfolding when needed, improving work efficiency. It also helps to reduce the aging and fatigue of the grounding wire 11 during long-term use, extending its service life.
[0040] The pin 204 penetrates the insulating layer of the object's surface, forming an electrical connection with the conductive part of the grounded object and engaging with the hole 203 to ensure a clamping effect. At this time, the magnetic piece 201 and the reed switch 202 are close together, and the reed switch 202 closes under the action of the magnetic field, forming a circuit inside the circuit board 10. When loosened, the magnetic piece 201 and the reed switch 202 move away, the circuit is short-circuited, the indicator light 205 flashes red light, and the alarm 206 starts to sound an alarm. This change can provide operators with accurate fault information, enabling them to detect and deal with grounding connection problems in a timely manner, and avoid safety accidents and equipment damage caused by poor grounding.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An explosion-proof electrostatic grounding clamp, comprising two clamping arms (1), characterized in that: Two connecting frames (3) are fixedly connected to the middle of each adjacent side of the clamping arm (1). A rotating shaft (4) is rotatably connected to the middle of the connecting frame (3). A spring (5) is fixedly connected to the outer wall of the rotating shaft (4). A support plate (6) is fixedly connected to the bottom of the rear side of the clamping arm (1). A storage post (7) is fixedly connected to the top of the support plate (6). A U-shaped block (8) is fixedly connected to the top of the front side of the storage post (7). An L-shaped block (9) is slidably connected to the top of the U-shaped block (8). An electric plate (10) is fixedly connected to the right end of the rear side of the clamping arm (1). A grounding wire (11) is fixedly connected to the left side of the electric plate (10). A steel pipe grounding electrode (12) is fixedly connected to the left side of the grounding wire (11). A warning mechanism (2) is provided on the rear side of the clamping arm (1). The warning mechanism (2) is used to provide an audible and visual alarm function.
2. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: The warning mechanism (2) includes a magnetic sheet (201), the front side of which is fixedly connected to the rear right end of the front clamping arm (1), a reed switch (202) is installed on the inner right end of the circuit board (10), two holes (203) are fixedly connected to the rear side of the front clamping arm (1), two pins (204) are fixedly connected to the front right end of the rear clamping arm (1), the front end of the pins (204) engages with the inner wall of the corresponding hole (203), an indicator light (205) is fixedly connected to the top right side of the circuit board (10), and an alarm (206) is fixedly connected to the top right side of the circuit board (10) near the edge.
3. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: The top of the L-shaped block (9) is fixedly connected to a pressing column (13), and the front right end of the clamping arm (1) is fixedly connected to a nameplate (18).
4. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: An extension grip (14) is fixedly connected to the left side of each of the clamping arms (1), and an anti-slip sleeve (15) is fixedly connected to the outer wall of each extension grip (14).
5. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: A support plate (16) is fixedly connected to the rear side of the rear clamping arm (1), and the rear side of the support plate (16) is fixedly connected to the middle of the front side of the receiving pile (7).
6. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: Protective strips (17) are fixedly connected to the opposite sides of the clamping arms (1), and the two protective strips (17) are symmetrically designed.
7. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: A warning sign (19) is fixedly connected to the rear side of the circuit board (10), and an anti-slip groove (20) is provided on the adjacent side of the circuit board (10).
8. The explosion-proof electrostatic grounding clamp according to claim 1, characterized in that: The top of the storage pile (7) is fixedly connected to an indicator (21), and the bottom front side of the L-shaped block (9) is fixedly connected to a limiting piece (22).