Grounding device for improving contact stability of grounding wire and grounding rod

Abstract

The utility model relates to a grounding device for improving the contact stability of a grounding wire and a grounding rod, which comprises a grounding rod assembly and a wire holder, the wire holder is arranged at the top end of the grounding rod assembly, and one end of the grounding wire is inserted into the wire holder and is in contact with the grounding rod assembly. The wire holder comprises a plug wire shell, a movable part and an adjusting part, the movable part is connected to the inner top of the plug wire shell, and the movable part is provided with a movable mechanism capable of moving inwards or outwards. Through the cooperative use of the wire holder and the grounding rod assembly, grounding wires with different wire diameters can be clamped and fixed by the movable part in the wire holder, so that the grounding wires and the grounding rod assembly are kept in good contact, and through the cooperative arrangement of the adjusting part and the movable part in the wire holder, the grounding wire can be adjusted. And after the grounding wire is clamped and fixed, the looseness of the movable part can be reduced, so that the grounding wire can be stably kept in contact with the grounding rod.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding devices, in particular to a grounding device capable of improving the contact stability between a grounding wire and a grounding rod. Background Art

[0002] The grounding device is the general term for the grounding electrode buried underground and the connecting wire from the grounding electrode to the equipment. The grounding device can form an electrical connection between electrical equipment or other objects and the ground to reduce the impact of leakage or static electricity on electrical equipment or other objects. When using the grounding device, it is generally necessary to fix one end of it on the ground, connect one end of the grounding wire to the electrical equipment, and then connect the other end of the grounding wire to the grounding device to complete the grounding connection between the electrical equipment and the earth. Due to the differences in the wire diameters of the grounding wires used on different electrical equipment, it is easy to have an unstable connection when the grounding device is connected to the grounding wire.

[0003] In the utility model patent with Chinese patent announcement number CN219801278U, a safety grounding device for electricity is proposed. Through the clamp structure composed of a conical sleeve and a petal block, the wire can be quickly clamped to prevent the wire from loosening, so that grounding wires of different wire diameters can be quickly connected and fixed.

[0004] However, when in use, this type of electrical safety grounding device relies on the elastic force of the spring on the petals to enable the two groups of petals to clamp the grounding wire. When the spring is significantly deformed, causing its elastic force to decrease or fail, the connection of the grounding wire will become unstable, thereby affecting the stability of the contact between the grounding wire and the grounding device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a grounding device which improves the contact stability between a grounding wire and a grounding rod, thereby solving the problem that an unstable connection easily occurs when the grounding device is connected to the grounding wire.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grounding device for improving the contact stability between a grounding wire and a grounding rod, comprising a grounding rod assembly and a terminal block, wherein the terminal block is installed at the top end of the grounding rod assembly, one end of the grounding wire is inserted into the terminal block and contacts the grounding rod assembly, the terminal block comprises a wire plug housing, a movable part and an adjustment part, the movable part is connected to the inner top of the wire plug housing, and the movable part has a movable mechanism that can move inward or outward, so that the movable mechanism clamps and fixes the grounding wire passing through the movable part, and the adjustment part is connected to the lower end of the movable part, and the adjustment part adjusts the position state of the movable part.

[0009] Preferably, the movable part includes a deflection disk and at least three groups of limit blocks, the deflection disk is rotatably connected to the inner top of the wire plug shell, and the top of the deflection disk is formed with a number of push grooves equal to the number of limit blocks, and several groups of the push grooves are evenly formed on the top end surface of the deflection disk, and the bottom of each group of the limit blocks is rotatably connected to a group of rectangular blocks, and the rectangular blocks are inserted into the push grooves located below them. Several groups of the limit blocks constitute the movable mechanism of the movable part, the width of the push groove is adapted to the width of the rectangular block, and the length of the push groove is greater than the length of the rectangular block.

[0010] It is further preferred that the adjustment part includes a worm gear ring, a worm and an adjusting bolt, the worm gear ring is coaxially fixed below the deflection disk, and the worm gear ring and the worm are meshed with each other, one end of the worm is rotatably connected to the inner wall of the wire plug housing, and the other end of the worm is threadedly connected to the adjusting bolt.

[0011] In a further embodiment, a top of the wire plug housing is formed with guide grooves whose number is equal to the number of limit blocks, each group of limit blocks is slidably arranged in a group of guide grooves, a boss is formed on the outer wall of the wire plug housing, one end of the worm gear is rotatably extended into the boss toward the boss, the adjusting bolt passes through the boss and is threadedly connected to the worm gear, and a plurality of threaded sleeves are formed on the outer wall of the wire plug housing, and the threaded sleeves are fixed to the grounding rod assembly by bolts.

[0012] It is further preferred that the grounding rod assembly includes a grounding rod, a connecting seat, an insertion seat, a tapered end and an insulating sleeve, the tapered end is arranged in a cone shape and is formed at the bottom end of the grounding rod, the connecting seat is fixedly connected to the top of the grounding rod and is used to be connected and fixed with the wire plug housing, the insertion seat is fixedly connected to the top of the connecting seat and inserted into the inner cavity of the wire plug housing, the middle cavity of the insertion seat, the middle cavity of the deflection disk and the inner cavity of the worm gear ring are longitudinally aligned, and the insulating sleeve is covered and sleeved on the middle section of the outer wall of the grounding rod.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a grounding device that improves the contact stability between the grounding wire and the grounding rod, and has the following beneficial effects:

[0015] In the utility model, through the coordinated use of the terminal block and the grounding rod assembly, grounding wires of different wire diameters can be clamped and fixed by the movable part in the terminal block, so that the grounding wire and the grounding rod assembly maintain good contact. At the same time, the coordinated setting of the adjustment part and the movable part in the terminal block can reduce the looseness of the movable part after the grounding wire is clamped and fixed, so that the grounding wire can maintain a relatively stable contact with the grounding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a grounding device for improving the contact stability between a grounding wire and a grounding rod according to an implementation scheme;

[0017] Figure 2 It is a schematic diagram of the structure of a half-sectioned plug-in housing in a wiring socket according to the implementation scheme;

[0018] Figure 3 Schematic diagram of the structure of a ground rod assembly according to an embodiment.

[0019] In the figure: 10, terminal block; 11, wire plug housing; 110, boss; 111, threaded sleeve; 112, guide groove; 12, deflection plate; 13, pull groove; 14, limit block; 15, worm gear ring; 16, worm; 17, adjusting bolt; 20, grounding rod assembly; 21, grounding rod; 22, connecting seat; 23, insertion seat; 24, tapered end; 25, insulating sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 A grounding device for improving the contact stability between a grounding wire and a grounding rod comprises a terminal block 10 and a grounding rod assembly 20. The terminal block 10 is installed at the top of the grounding rod assembly 20, one end of the grounding wire is inserted into the terminal block 10 and contacts the grounding rod assembly 20, and the bottom end of the grounding rod assembly 20 is inserted into the ground and fixed, thereby completing the grounding operation of the grounding wire of the electrical equipment.

[0022] See also Figure 2The terminal block 10 may include a plug housing 11, a movable portion, and an adjustment portion. The movable portion is connected to the inner top of the plug housing 11, and the movable portion has a movable mechanism that can move inward or outward, so that the movable mechanism clamps and fixes the ground wire passing through the movable portion. The adjustment portion is connected to the lower end of the movable portion, and the adjustment portion adjusts the position state of the movable portion.

[0023] In this embodiment, the top of the plug housing 11 is formed with guide grooves 112, the number of which is equal to the number of the limit blocks 14, and each group of limit blocks 14 in the movable part is slidably disposed in a group of guide grooves 112, so that the guide grooves 112 guide the movement of the limit blocks 14. A plurality of groups of threaded sleeves 111 are also formed on the outer wall of the plug housing 11, and the threaded sleeves 111 are fixed to the ground rod assembly 20 by bolts.

[0024] In this embodiment, the movable part includes a deflection plate 12 and at least three groups of limit blocks 14, and several groups of limit blocks 14 constitute the movable mechanism of the movable part. The deflection plate 12 is rotatably connected to the inner top of the plug-in housing 11, and the top of the deflection plate 12 is formed with a number of slots 13 equal to the number of limit blocks 14, and several groups of slots 13 are evenly formed on the top end surface of the deflection plate 12. The bottom of each group of limit blocks 14 is rotatably connected with a group of rectangular blocks, and the rectangular blocks are inserted into the slots 13 located below them. The width of the slots 13 is adapted to the width of the rectangular blocks, and the length of the slots 13 is greater than the length of the rectangular blocks, so that when the deflection plate 12 is deflected, the inner wall of the slots 13 can be used to push the rectangular blocks, so that the rectangular blocks can slide in the slots 13 along the length direction thereof, and at the same time, the guide grooves 112 are used to guide the limit blocks 14, so that the rectangular blocks are deflected below the limit blocks 14 and can also drive the limit blocks 14 to move along the guide grooves 112. When at least three groups of limit blocks 14 move toward the center or move outward at the same time, the gaps between the groups of limit blocks can be adjusted to fit the wire diameter of the ground wire.

[0025] In this embodiment, the adjustment part includes a worm gear ring 15, a worm 16 and an adjustment bolt 17. The worm gear ring 15 is coaxially fixed below the deflection disk 12, and the worm gear ring 15 and the worm 16 are meshed with each other, and one end of the worm 16 is rotatably connected to the inner wall of the plug housing 11, so that when the worm 16 is pushed to deflect, the worm gear ring 15 and the deflection disk 12 can be driven to deflect at the same time, and then the movable part is adjusted by the adjustment part. A boss 110 is formed on the outer wall of the plug housing 11, and one end of the worm 16 facing the boss 110 can be rotatably extended into the boss 110. The adjusting bolt 17 passes through the boss 110 and is threadedly connected to the worm 16, so that the adjusting bolt 17 can be used to drive the worm 16 to deflect when adjusting the gap between several groups of limit blocks 14 in the movable part; after the adjustment is completed, the staff presses the limit block 14 to keep it in the current position, and then loosens and removes the end of the moving worm 16 of the adjusting bolt 17. At this time, the self-locking cooperation between the worm wheel ring 15 and the worm 16 is utilized, so that when the worm 16 cannot be pushed to rotate from the outside, the fixation of the movable part to the grounding wire is easy to loosen.

[0026] See also Figure 3 The grounding rod assembly 20 may include a grounding rod 21, a connection seat 22, an insertion seat 23, a tapered end 24, and an insulating sleeve 25. The tapered end 24 is set to be conical and formed at the bottom end of the grounding rod 21, and is used to insert the ground to fix the grounding rod 21. The connection seat 22 is fixedly connected to the top of the grounding rod 21 and aligned with the threaded sleeve 111, and the plug-in housing 11 and the connection seat 22 can be connected and fixed by bolts. The insertion seat 23 is fixedly connected to the top of the connection seat 22 and inserted into the inner cavity of the plug-in housing 11. The middle cavity of the insertion seat 23, the middle cavity of the deflection disk 12, and the inner cavity of the worm ring 15 are longitudinally aligned so that the grounding wire can be inserted into the inner cavity of the insertion seat 23. The insertion seat 23 and the grounding rod 21 are both set to conductive metal materials so that they are connected to the grounding wire. The insulating sleeve 25 is sheathed in the middle section of the outer wall of the grounding rod 21, so that the user can easily hold the grounding rod 21.

[0027] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A grounding device for improving the contact stability between a grounding wire and a grounding rod, comprising a grounding rod assembly (20), characterized in that: It also includes a terminal block (10), wherein the terminal block (10) is installed at the top end of the grounding rod assembly (20), one end of the grounding wire is inserted into the terminal block (10) and contacts the grounding rod assembly (20), and the terminal block (10) includes a wire plug housing (11), a movable portion, and an adjustment portion, wherein the movable portion is connected to the inner top of the wire plug housing (11), and the movable portion has a movable mechanism that can move inward or outward, so that the movable mechanism clamps and fixes the grounding wire passing through the movable portion, and the adjustment portion is connected to the lower end of the movable portion, and the adjustment portion adjusts the position state of the movable portion.

2. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 1, characterized in that: The movable part comprises a deflection plate (12) and at least three groups of limit blocks (14); the deflection plate (12) is rotatably connected to the inner top of the plug-in housing (11); and the top of the deflection plate (12) is formed with a number of shifting grooves (13) equal to the number of the limit blocks (14); a plurality of groups of the shifting grooves (13) are evenly formed on the top end surface of the deflection plate (12); the bottom of each group of the limit blocks (14) is rotatably connected to a group of rectangular blocks, and the rectangular blocks are inserted into the shifting grooves (13) located below them; and the plurality of groups of the limit blocks (14) constitute the movable mechanism of the movable part.

3. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 2, characterized in that: The width of the pull groove (13) is adapted to the width of the rectangular block, and the length of the pull groove (13) is greater than the length of the rectangular block.

4. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 2 or 3, characterized in that: The adjusting portion comprises a worm gear ring (15), a worm (16) and an adjusting bolt (17); the worm gear ring (15) is coaxially fixed below the deflection disk (12), and the worm gear ring (15) and the worm (16) are meshed with each other; one end of the worm (16) is rotatably connected to the inner wall of the plug-in housing (11), and the other end of the worm (16) is threadedly connected to the adjusting bolt (17).

5. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 4, characterized in that: The top of the plug housing (11) is formed with guide grooves (112) whose number is equal to the number of the limit blocks (14), and each group of the limit blocks (14) is slidably disposed in a group of guide grooves (112).

6. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 5, characterized in that: A boss (110) is formed on the outer wall of the plug housing (11), one end of the worm (16) facing the boss (110) is rotatably extended into the boss (110), and the adjustment bolt (17) passes through the boss (110) and is threadedly connected to the worm (16).

7. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 6, characterized in that: A plurality of groups of threaded sleeves (111) are also formed on the outer wall of the plug housing (11), and the threaded sleeves (111) are connected and fixed to the grounding rod assembly (20) by means of bolts.

8. A grounding device for improving the contact stability between a grounding wire and a grounding rod according to claim 7, characterized in that: The grounding rod assembly (20) comprises a grounding rod (21), a connecting seat (22), an inserting seat (23), a tapered end (24) and an insulating sleeve (25); the tapered end (24) is arranged in a conical shape and is formed at the bottom end of the grounding rod (21); the connecting seat (22) is fixedly connected to the top end of the grounding rod (21) and is used to be connected and fixed to the plug-in housing (11); the inserting seat (23) is fixedly connected to the top of the connecting seat (22) and inserted into the inner cavity of the plug-in housing (11); the middle cavity of the inserting seat (23), the middle cavity of the deflection disk (12) and the inner cavity of the worm gear ring (15) are longitudinally aligned; and the insulating sleeve (25) is sheathed and arranged on the middle section of the outer wall of the grounding rod (21).

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