A portable quick-connect grounding device
By designing a portable, quick-install grounding device, the problems of high pollution levels, short lifespan, and difficult installation of grounding wires have been solved, achieving efficient and convenient grounding operation. It is suitable for various work environments and improves safety and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA YANGTZE POWER
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-03
AI Technical Summary
Existing grounding wires suffer from problems such as high contamination, short service life, difficulty in installation and removal, easy detachment, inconvenience in handling and relocation, and difficulty in storage when used frequently.
A portable quick-install grounding device was designed, including components such as a cover, outer shell, sleeve, spiral spring, fixing ring, roller, and caster wheel. It enables convenient installation, removal, and transfer. The device is securely connected to the grounding terminal through a clamp, and its portability is improved by utilizing the caster wheel and roller structure.
It improves the efficiency of grounding wire installation and removal, reduces wear and dirt, extends service life, has a simple and reliable structure, high safety, and is suitable for different working conditions.
Smart Images

Figure CN224458627U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grounding wire technology, specifically relating to a portable quick-install grounding device. Background Technology
[0002] In power maintenance work, suspending and installing grounding wires is a lifeline protecting the personal safety of maintenance personnel. It prevents serious injury from sudden power surges during maintenance. Therefore, installing grounding wires is one of the most important safety measures in maintenance projects. Reliable grounding prevents electric shock injuries in the event of a sudden power surge. However, in practice, due to frequent use, grounding wires suffer from numerous problems, including significant contamination, short lifespan, difficulty in installation and removal, easy detachment, inconvenience in transporting and storing. Therefore, a portable, quick-install grounding device that is easy to install, transport, and store, and is highly efficient and practical, has been developed to address these issues. Utility Model Content
[0003] This utility model aims to solve many problems associated with the frequent use of grounding wires, such as high pollution levels, short service life, difficulty in installation and removal, easy detachment, inconvenience in transportation and relocation, and difficulty in storage.
[0004] To solve the above problems, this application provides the following technical solution:
[0005] A portable quick-release grounding device includes a cover that is securely snapped onto the inner wall of a housing.
[0006] The outer casing has a first wire hole and a second wire hole, and the first wire hole and the second wire hole are respectively fitted with the two ends of the sleeve.
[0007] The bushing contains the live wire, neutral wire, and ground wire.
[0008] A pair of handles are fixedly connected to the upper side wall of the lid.
[0009] A fixed post is provided at the center of the bottom of the outer shell. The fixed post is fixedly connected to the tail end of the spiral spring. The tension end of the spiral spring is fixedly connected to the fixed ring. The fixed ring is fixedly connected to the middle part of the sleeve. The fixed ring fixes and tightens the sleeve. The sleeve is coiled along the roller. The sleeve is installed in the internal space of the outer shell. The two ends of the sleeve pass through the first wire hole and the second wire hole in sequence.
[0010] One end of the sleeve is fixedly connected to the first anti-collision ring, and the other end of the sleeve is fixedly connected to the second anti-collision ring.
[0011] One end of the fire wire is fixedly connected to the first clamp.
[0012] One end of the neutral wire is fixedly connected to the second clamp.
[0013] One end of the ground wire is fixedly connected to the third clamp.
[0014] The other ends of the live wire, neutral wire, and ground wire are connected in parallel to a grounding clamp.
[0015] The bottom side wall of the outer shell is fixedly connected to the base, and the bottom of the base is equipped with four casters.
[0016] The base is fixedly connected to the bottom of the fixed column, and the ring wall is fixedly connected to the top side wall of the base. A roller is sleeved on the outside of the ring wall. The inner diameter of the roller is larger than the outer diameter of the ring wall, and the roller can roll freely. The ring wall has a first opening, and the roller has a second opening.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This device is highly versatile and widely applicable, suitable for various work environments and fields, enabling efficient and convenient connection and disconnection of grounding wires during equipment maintenance. It significantly improves the efficiency of grounding wire installation and removal, reducing the tedious process while remaining safe, reliable, and easy to relocate. It effectively reduces wear and contamination of the grounding wire during installation and removal, extending its service life. The device features a simple structure, high reliability, and ease of implementation. Attached Figure Description
[0019] Figure 1 Yes, this is a schematic diagram of the overall structure of the lid.
[0020] Figure 2 This is a schematic diagram of the structure of the outer shell and sleeve of the portable quick-install grounding device after the cover is opened.
[0021] Figure 3 yes Figure 2 A top view of the outer casing and sleeve.
[0022] Figure 4 This is a schematic diagram of the connection structure between the internal spiral spring, retaining ring, and sleeve of the outer casing.
[0023] Figure 5 It is a structural diagram of the annular wall, the first opening, the roller, and the second opening.
[0024] Figure 6 This is a schematic diagram of the structure of the first and second wire holes on the outer wall of the outer casing.
[0025] Figure 7 This is a schematic diagram of the lid's structure viewed from below.
[0026] Reference numerals: 1. Cover, 101. Handle, 2. Housing, 3. First wire hole, 301. Second wire hole, 302. Caster wheel, 4. Base, 5. Fixing post, 6. Ring wall, 7. First opening, 701. Roller, 8. Second opening, 801. Scroll spring, 9. Fixing ring, 901. Sleeve, 10. First anti-collision ring, 11. Second anti-collision ring, 12. Live wire, 13. First clamp, 1301. Neutral wire, 14. Second clamp, 1401. Ground wire, 15. Third clamp, 1501. Ground clamp, 16. Detailed Implementation
[0027] It should be understood that the terms "inner wall sidewall," "both ends," "inner," "upper," "bottom," "stretching end," "middle part," "both ends," "one end," "the other end," "top sidewall," and "outer side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, the "fixed connection" described in this application refers to conventional methods such as bonding.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected," "linked," "equipped with," "featured," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Furthermore, the description of this invention is merely a preferred embodiment and is not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.
[0030] The model number selected in this patent is merely for ease of explanation and is not intended to restrict the use of this particular instrument model.
[0031] Example 1
[0032] Please see Figures 1-7 ,
[0033] A portable quick-release grounding device includes a cover 1, the bottom wall of which is fixedly snapped onto the inner wall of a housing 3.
[0034] The outer casing 3 has a first wire hole 301 and a second wire hole 302 on its side wall. The two ends of the sleeve 10 are respectively installed in the first wire hole 301 and the second wire hole 302.
[0035] The sleeve 10 contains the live wire 13, the neutral wire 14 and the ground wire 15.
[0036] A pair of handles 101 are fixedly connected to the upper side wall of the cover 1.
[0037] A fixing post 6 is provided at the bottom center of the outer shell 3. The fixing post 6 is fixedly connected to the tail end of the spiral spring 9. The tension end of the spiral spring 9 is fixedly connected to the fixing ring 901. The fixing ring 901 is fixedly connected to the middle part of the sleeve 10. The fixing ring 901 fixes and tightens the sleeve 10. The sleeve 10 is coiled along the roller 8. The sleeve 10 is installed in the internal space of the outer shell 3. The first and second ends of the sleeve 10 pass through the first wire hole 301 and the second wire hole 302 in sequence.
[0038] Preferably, the sleeve 10 is folded once after aligning the two ends, and the folded part is the middle part of the sleeve 10.
[0039] One end of the sleeve 10 is fixedly connected to the first anti-collision ring 11, and the other end of the sleeve 10 is fixedly connected to the second anti-collision ring 12.
[0040] One end of the live wire 13 is fixedly connected to the first clamp 1301.
[0041] One end of the neutral wire 14 is fixedly connected to the second clamp 1401.
[0042] One end of the ground wire 15 is fixedly connected to the third clamp 1501.
[0043] The other ends of the live wire 13, neutral wire 14 and ground wire 15 are connected in parallel to the grounding clamp 16.
[0044] The bottom side wall of the outer shell 3 is fixedly connected to the base 5, and the bottom of the base 5 is equipped with four universal wheels 4.
[0045] The bottom of the fixed column 6 is fixedly connected to the base 5, the top side wall of the base 5 is fixedly connected to the ring wall 7, and the outer side of the ring wall 7 is fitted with a roller 8. The inner diameter of the roller 8 is larger than the outer diameter of the ring wall 7, and the roller 8 can roll freely. The ring wall 7 has a first opening 701, and the roller 8 has a second opening 801.
[0046] Preferably, the outer diameter of the first anti-collision ring 11 is larger than the inner diameter of the first wire hole 301, and the first anti-collision ring 11 can be locked on the outside of the first wire hole 301.
[0047] Preferably, the first anti-collision ring 11 and the second anti-collision ring 12 are the same size.
[0048] Preferably, the outer diameter of the second anti-collision ring 12 is larger than the inner diameter of the second wire hole 302, and the second anti-collision ring 12 can be locked onto the outside of the second wire hole 302.
[0049] Preferably, the first wire hole 301 and the second wire hole 302 are the same size.
[0050] Preferably, the live wire 13, neutral wire 14, and ground wire 15 are copper core wires. Copper core wires have good conductivity, are flexible, and can be bent and rolled back.
[0051] Locking buckle Fixed contact with the outer walls of the first wire hole 301 and the second wire hole 302 The locking buckle is used to secure the snap-fit. Both ends of sleeve 10 ,prevent The retraction force of the spiral spring 9 pulls the sleeve 10 into the housing 3. Locking buckle To prevent the sleeve 10 from automatically retracting due to the tension of the internal spiral spring 9.
[0052] Preferably, the inner wall of the roller 8 is coated with lubricating oil to reduce friction when the roller 8 rotates.
[0053] Preferably, the spiral spring 9 was purchased from Dongguan Yongsheng Metal Products Co., Ltd., model number DL-010.
[0054] Preferably, the first clamp 1301, the second clamp 1401, the third clamp 1501, and the ground clamp 16 are all the same and are all purchased from Jineng Power Company, with the model number JN-JDX.
[0055] Preferably, the locking buckle is made of high-strength PVC plastic material, purchased from Zhejiang Litai Plastics Co., Ltd., model: double-headed nylon cable tie self-locking plastic buckle.
[0056] Bushing 10 was purchased from Beihong Company, model LSJYG-10.3. It is made of smooth, flexible plastic material, which can effectively protect the grounding cable from wear and ensure the neat and orderly arrangement of the three-phase cables;
[0057] The grounding terminal was purchased from Jineng Power Company, model number JN-JDX.
[0058] The outer casing 3 is made of high-strength aluminum alloy, purchased from Shuaigong Company, specifically type 6061 aluminum alloy round tube. The outer casing 3 allows for neat and orderly storage of the grounding cable, preventing damage and contamination.
[0059] The portable quick-install grounding device is actually a grounding trolley. The casters 4 are installed at the bottom of the base 5, which can slide in any direction, enabling the portable quick-install grounding device to be moved easily and reducing the burden of handling.
[0060] The first clamp 1301, the second clamp 1401, the third clamp 1501, and the ground clamp 16 can conveniently clamp the required grounding equipment, realize efficient grounding of various equipment, and achieve firm clamping of grounding equipment and easy removal of grounding wires.
[0061] The grounding terminal is fixedly connected to the earth. The grounding clamp 16 is composed of a strong spring clamp, which can achieve a firm connection with the grounding terminal and save time and effort when removing it. It avoids the time-consuming and laborious process of tightening and loosening screws required by traditional grounding clamps. The end of its clamp is bionic to a bird's beak, which can lock the grounding terminal after clamping it, preventing it from falling off during the collision process. This improves the operational efficiency of the grounding clamp 16 connection while reducing the safety risk caused by the grounding clamp 16 falling off the grounding terminal.
[0062] Handlebar 2 allows for portable, quick-installation grounding devices, saving time and effort. Handlebar 2 is made of ordinary insulating rubber.
[0063] Operating principle:
[0064] When grounding is required for power plant equipment maintenance, at least two workers must be present, and these workers must wear insulated clothing and gloves before operating the device. One worker may hold the handlebars 2 of the portable quick-connect grounding device and drag it to the location where the grounding wire needs to be attached, while the other worker drags the first anti-collision ring 11 and the second anti-collision ring 12 of the sleeve 10.
[0065] After the two ends of the sleeve 10 are pulled out to a suitable length from the outer shell 3 of the portable quick-connect grounding device, the two ends of the sleeve 10 are locked with locking buckles near the first wire hole 301 and the second wire hole 302 on the side wall of the outer shell 3 to achieve reliable locking of the sleeve 10 and prevent the strong winding force of the spiral spring wheel 9 from dragging the sleeve 10 back into the outer shell 3.
[0066] After the sleeve 10 is stretched to the appropriate length and locked, first squeeze the handle of the ground clamp 16 so that the clamp of the ground clamp 16 is connected to the grounding terminal of the earth.
[0067] Then, squeeze the handles on the first clamp 1301, the second clamp 1401, and the third clamp 1501 respectively to open the clamps. Insert each phase terminal of the three phases of the deactivated power station equipment into the clamps of the first clamp 1301, the second clamp 1401, and the third clamp 1501 respectively. Release the handle of each clamp, and each clamp will clamp one phase terminal of the equipment respectively, thus completing the phase-to-ground short circuit of the deactivated power station equipment, that is, realizing the three-phase ground short circuit of the deactivated power station equipment.
[0068] The above operations achieve three-phase short-circuit grounding of the power station equipment under maintenance. After maintenance is completed and the power station equipment no longer needs to be grounded, the operations are reversed to achieve quick and convenient removal, storage and transfer of the short-circuit grounding wire.
Claims
1. A portable quick-mount grounding device comprising a cover (1), characterized in that, The cover (1) is fixedly snapped onto the inner wall of the outer shell (3). The outer casing (3) has a first wire hole (301) and a second wire hole (302) on its side wall. The first wire hole (301) and the second wire hole (302) are respectively fitted with the two ends of the sleeve (10). The sleeve (10) contains a live wire (13), a neutral wire (14) and a ground wire (15).
2. The portable quick grounding device of claim 1, wherein, A pair of handles (101) are fixedly connected to the upper side wall of the cover (1).
3. The portable grounding device of claim 1, wherein, The bottom center of the outer shell (3) is provided with a fixed post (6), the fixed post (6) is fixedly connected to the tail end of the spiral spring (9), the tension end of the spiral spring (9) is fixedly connected to the fixed ring (901), the fixed ring (901) is fixedly connected to the middle part of the sleeve (10), the fixed ring (901) fixes and tightens the sleeve (10), the sleeve (10) is coiled along the roller (8), the sleeve (10) is installed in the internal space of the outer shell (3), and the first and second ends of the sleeve (10) pass through the first wire hole (301) and the second wire hole (302) in sequence.
4. The portable quick grounding device of claim 1, wherein, One end of the sleeve (10) is fixedly connected to the first anti-collision ring (11), and the other end of the sleeve (10) is fixedly connected to the second anti-collision ring (12).
5. The portable grounding device of claim 1, wherein, One end of the fire wire (13) is fixedly connected to the first clamp (1301).
6. The portable quick grounding device of claim 1, wherein, One end of the neutral wire (14) is fixedly connected to the second clamp (1401).
7. The portable grounding device of claim 1, wherein, One end of the ground wire (15) is fixedly connected to the third clamp (1501).
8. The portable grounding device of claim 1, wherein, The other ends of the live wire (13), neutral wire (14) and ground wire (15) are connected in parallel to the ground clamp (16).
9. The portable grounding device of claim 1, wherein, The bottom side wall of the outer shell (3) is fixedly connected to the base (5), and the bottom of the base (5) is equipped with four universal wheels (4).
10. The portable grounding device of claim 3, wherein, The bottom of the fixed column (6) is fixedly connected to the base (5), the top side wall of the base (5) is fixedly connected to the ring wall (7), the outer side of the ring wall (7) is fitted with a roller (8), the inner diameter of the roller (8) is larger than the outer diameter of the ring wall (7), the roller (8) can roll freely, the ring wall (7) is provided with a first opening (701), and the roller (8) is provided with a second opening (801).