Eccentric locking grounding wire clamp convenient to assemble and disassemble

Abstract

The invention relates to the technical field of grounding wire clamps, in particular to an eccentric locking grounding wire clamp convenient to assemble and disassemble, which comprises a clamping assembly, a fixing back plate and a conductor end fixing clamp arranged at the top end of the fixing back plate, a fixing shaft is mounted on the side wall of the fixing back plate, and the fixing shaft is connected with the conductor end fixing clamp. The side wall of the fixing shaft is sleeved with an eccentric wheel column used for fixing a conductor. The fixing assembly comprises a threaded groove formed in the end of the fixing shaft, a screw adjusting assembly is installed in the threaded groove, the fixing assembly comprises a replacement part arranged on the inner wall of the eccentric wheel column, a fixing part matched with the replacement part is installed on the side wall of the fixing shaft, and a connecting part is installed on the inner wall of the replacement part. The eccentric wheel column is driven by the insulating rod to clamp and fix the conductor, the disassembly is convenient, and a proper fixing mode can be selected according to on-site requirements. The ground wire is convenient to assemble and disassemble on site, and violation and personal injury and equipment accidents caused by violation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grounding wire clamps, and in particular to an eccentric locking grounding wire clamp which is easy to assemble and disassemble. Background Art

[0002] At present, most of the grounding wires used in substations require operators to rotate the insulating operating rod during installation and removal. In many cases, due to the limitations of on-site conditions, the conductor end is far away from the operator. In addition, the grounding rod, grounding wire clamp and other accessories are worn and loose, making on-site operation time-consuming and labor-intensive, and easy to cause violations and lead to personal injury and equipment accidents. At the same time, there are many scenarios, equipment models, and installation methods for installing grounding wires, especially indoor open-compartment equipment. Each compartment is separated by a building partition wall, and the copper busbar on the line side is basically installed perpendicular to the ground. When installing and removing the grounding wire, the operator can only stand on an insulating ladder or climb up the compartment mesh door and the circuit breaker mechanism casing to make the grounding wire insulating rod basically perpendicular to the copper busbar before it can be installed firmly, which is very likely to cause violations and personal injury and equipment accidents. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the fact that the above-mentioned grounding wire is time-consuming and laborious to operate at the installation and disassembly site, and is prone to cause violations and lead to personal injury and equipment accidents, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide an eccentric locking grounding clamp which is easy to assemble and disassemble.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an eccentric locking grounding wire clamp that is easy to assemble and disassemble, comprising: a clamping assembly, comprising a fixed back plate, a conductor end fixing clamp arranged at the top of the fixed back plate, a fixed shaft is installed on the side wall of the fixed back plate, and an eccentric wheel column for fixing the conductor is sleeved on the side wall of the fixed shaft;

[0007] A fixing assembly, comprising a threaded groove arranged at the end of the fixing shaft, a screw rod being installed inside the threaded groove, and a nut at the end of the screw rod being used to limit the eccentric wheel column; and,

[0008] The adjustment component comprises a replacement part arranged on the inner wall of the eccentric wheel column, a fixing part matching the replacement part is installed on the side wall of the fixed shaft, and a connecting part is installed on the inner wall of the replacement part.

[0009] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the clamping assembly also includes a clamping groove arranged on the side wall of the eccentric wheel column, and the bottom end of the inner wall of the conductor end fixing clamp is equipped with a limiting groove that cooperates with the clamping groove to clamp and fix the conductor.

[0010] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the clamping assembly also includes a lower groove arranged on the outer wall of the fixed back plate, a grounding wire nose is installed inside the lower groove, and the side view of the fixed back plate and the conductor end fixing clamp is T-shaped.

[0011] As a preferred solution of the eccentric locking grounding wire clamp that is easy to install and disassemble as described in the present invention, the fixing component also includes an insulating rod arranged on the side wall of the eccentric wheel column, and a fastening head is installed on the end of the insulating rod. The fastening head passes through the eccentric wheel column and extends to the inside of the spiral groove on the side wall of the fixed shaft, and the spiral grooves are distributed in a circular array with the midpoint of the fixed shaft.

[0012] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the replacement part includes a fixing ring arranged on the side wall of the fixed shaft, a connecting shaft is installed on the end of the fixing ring, a wedge is sleeved on the side wall of the connecting shaft, and the side view of the wedge is J-shaped, and a torsion spring is arranged between the wedge and the connecting shaft.

[0013] As a preferred solution of the eccentric locking grounding wire clamp that is easy to install and disassemble as described in the present invention, the replacement part also includes a rotating ring arranged on the side wall of the fixed ring, the rotating ring and the fixed ring are both located at both ends of the fixed shaft, and the spiral groove is located between the two rotating rings.

[0014] As a preferred solution of the eccentric locking grounding wire clamp that is easy to install and disassemble as described in the present invention, the replacement part also includes a limit block arranged on the side wall of the rotating ring, the limit blocks are distributed in a circular array with the midpoint of the rotating ring, and the limit blocks match the limit grooves on the inner wall of the eccentric wheel column.

[0015] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the replacement part also includes a tooth block arranged on the inner wall of the rotating ring, and the inclined surface on one side of the tooth block matches the inner surface of the wedge-shaped middle hook.

[0016] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the fixing part includes an inclined block arranged at the end of the fastening head away from the insulating rod, the diameter of the inclined block is narrow at the top and wide at the bottom, and the side view of the inclined block is trapezoidal, and an inclined ring is installed at the end where the two rotating rings are close to each other. The diameter of the end where the two inclined rings are close to each other is the narrowest, and the diameter increases as the distance is farthest, and the inclined surface of the inclined ring matches the inclined block.

[0017] As a preferred solution of the eccentric locking grounding wire clamp that is easy to assemble and disassemble as described in the present invention, the connecting member includes a connecting ring arranged on the inner walls of the two rotating rings, the side wall of the connecting ring is sleeved with a telescopic spring, the two ends of the telescopic spring are respectively connected to the two rotating rings, and the connecting ring is slidably connected to the rotating ring.

[0018] Beneficial effects of the present invention: The present invention drives the eccentric wheel column to clamp and fix the conductor by means of an insulating rod, and the disassembly is convenient and a suitable fixing method can be selected according to the needs of the site. The grounding wire is convenient to operate at the installation and disassembly site, which reduces violations and causes personal injury and equipment accidents. The eccentric locking grounding wire clamp that is easy to install and disassemble has the advantages of fast installation and disassembly, strong reliability, wide adaptability, safety and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without any creative labor.

[0020] Figure 1 The figure is an overall schematic diagram of an eccentric locking grounding wire clamp which is easy to assemble and disassemble.

[0021] Figure 2 The present invention is a top view structural schematic diagram of an eccentric locking grounding wire clamp which is easy to assemble and disassemble.

[0022] Figure 3 The figure is a side view of the cross-sectional structure at AA of an eccentric locking grounding wire clamp that is easy to assemble and disassemble.

[0023] Figure 4 The present invention is a schematic cross-sectional structural diagram of a third embodiment of an eccentric locking grounding wire clamp that is easy to assemble and disassemble.

[0024] Figure 5 for Figure 4 Enlarged view of point A in .

[0025] Figure 6 The present invention is a schematic diagram showing the disassembly of an adjustment component of an eccentric locking grounding wire clamp which is easy to assemble and disassemble.

[0026] Figure 7 for Figure 6 Enlarged view of point B in .

[0027] Reference numerals:

[0028] 100, clamping assembly; 101, fixed back plate; 102, conductor end fixing clamp; 103, fixed shaft; 104, eccentric wheel column; 105, clamping groove; 106, limiting groove; 107, lower groove; 108, grounding wire nose;

[0029] 200, fixing assembly; 201, threaded groove; 202, screw rod; 203, insulating rod; 204, fastening head; 205, spiral groove;

[0030] 300, adjustment component; 301, replacement part; 302, fixing part; 303, connecting part;

[0031] 301a, fixed ring; 301b, connecting shaft; 301c, wedge block; 301d, torsion spring; 301e, rotating ring; 301f, limit block; 301g, gear block;

[0032] 302a, oblique block; 302b, oblique ring;

[0033] 303a, connecting ring; 303b, telescopic spring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0038] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides an eccentric locking grounding wire clamp that is easy to assemble and disassemble, including, after the fastening head 204 is connected to the threaded hole of the eccentric wheel column 104, the fastening head 204 is moved along the circumferential direction of the fixed shaft 103 to drive the eccentric wheel column 104 to change the diameter to fix the conductor. This fixing method is simple and fast.

[0039] Specifically, the clamping assembly 100 includes a fixed back plate 101, a conductor end fixing clamp 102 arranged at the top of the fixed back plate 101, a fixed shaft 103 is installed on the side wall of the fixed back plate 101, and an eccentric wheel column 104 for fixing the conductor is sleeved on the side wall of the fixed shaft 103.

[0040] Furthermore, the clamping assembly 100 also includes a clamping groove 105 arranged on the side wall of the eccentric wheel column 104, and a limiting groove 106 is installed at the bottom end of the inner wall of the conductor end fixing clamp 102 to cooperate with the clamping groove 105 to clamp and fix the conductor.

[0041] Furthermore, the clamping assembly 100 also includes a lower groove 107 arranged on the outer wall of the fixed back plate 101, and a grounding wire nose 108 is installed inside the lower groove 107, and the fixed back plate 101 and the conductor end fixing clamp 102 are T-shaped in a side view.

[0042] Operation process: Make sure that all necessary tools (such as wrenches, screwdrivers, etc.) and materials (such as conductors, grounding wires, etc.) are ready. Check whether the clamping assembly 100 is intact and confirm that the various components such as the fixed back plate 101, the conductor end fixing clamp 102, the fixed shaft 103, the eccentric wheel column 104, the clamping groove 105, the limiting groove 106, the lower groove 107 and the grounding wire nose 108 are in good condition. Place the grounding wire nose 108 into the lower groove 107 on the fixed back plate 101 and ensure that it is firmly installed. Place the conductor to be connected into the clamping groove 105 on the side wall of the eccentric wheel column 104, ensure that the conductor is correctly aligned, and rotate the eccentric wheel column 104 so that it presses the conductor and enters the limiting groove 106 to complete the fixing of the conductor. Press the conductor end fixing clamp 102 from above to fix the conductor completely on the clamping assembly 100, and connect the grounding wire clamp with the conductor to the equipment that needs to be grounded. Make sure all connection points are secure and in good contact, and check for looseness or other safety hazards. First loosen the conductor end fixing clamp 102 to relieve the pressure on the conductor. Reversely rotate the eccentric wheel column 104 to release the clamping force on the conductor. Gently pull out the conductor and remove it from the clamping groove 105.

[0043] Example 2, reference Figure 1-Figure 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the conductor is fixed and released by changing the diameter of the eccentric column 104, and the fastening head 204 is driven to rotate by the insulating rod 203 to move the fastening head 204 to the inside of the spiral groove 205 to fix the eccentric column 104. The conductor can be fixed and released by a simple rotation action, thereby improving work efficiency.

[0044] Specifically, the fixing assembly 200 includes a threaded groove 201 disposed at the end of the fixing shaft 103 , a screw rod 202 is installed inside the threaded groove 201 , and the eccentric wheel column 104 is limited by a nut at the end of the screw rod 202 .

[0045] Furthermore, the fixing component 200 also includes an insulating rod 203 arranged on the side wall of the eccentric column 104, and a fastening head 204 is installed at the end of the insulating rod 203, wherein the side wall of the eccentric column 104 is provided with a prepared groove for inserting the fastening head 204, and a suitable fastening head 204 can be selected to insert the groove according to actual conditions. The fastening head 204 passes through the eccentric column 104 and extends to the inside of the spiral groove 205 on the side wall of the fixed shaft 103, and the spiral groove 205 is distributed in a circular array with the midpoint of the fixed shaft 103.

[0046] The rest of the structure is the same as that of Example 1.

[0047] Operation process: Place the conductor to be connected into the clamping groove 105 on the side wall of the eccentric wheel column 104 to ensure that the conductor is correctly aligned. Rotate the insulating rod 203, drive the eccentric wheel column 104 to rotate through the fastening head 204, and use the eccentric design to increase the diameter of the eccentric wheel column 104, so as to press the conductor between the clamping groove 105 and the limiting groove 106. Pass the fastening head 204 through the eccentric wheel column 104 and extend it to the spiral groove 205 on the side wall of the fixed shaft 103 to fix the eccentric wheel column 104. And use the nut at the end of the screw 202 to limit the eccentric wheel column 104 to prevent the eccentric wheel column 104 from rotating accidentally. Connect the grounding wire clamp with the conductor to the equipment that needs to be grounded. Ensure that all connection points are firm and in good contact, and check whether there is looseness or other safety hazards. When canceling the conductor fixation, rotate the fastening head 204 in the opposite direction to cancel the limit of the fastening head 204 on the eccentric wheel column 104. Then, the insulating rod 203 is moved in the reverse direction, and the eccentric wheel column 104 is driven to rotate through the fastening head 204 to reduce its diameter, thereby releasing the clamping force on the conductor, and the conductor is gently pulled out to be taken out from the clamping groove 105 .

[0048] Example 3, reference Figure 5-Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the above embodiments in that: the conductor fixation in this embodiment is not limited by size, the conductor fixation accuracy is higher, and the fixation is more accurate, but the cost is higher. It is suitable for conductors with high fixing accuracy, and the adjustment component 300 can be disassembled as a whole. The fixing ring 301a is screwed to the side wall of the fixed shaft 103. When high-precision fixation is not required, the fixing of the fixing ring 301a is canceled and it is taken out. At the same time, the entire adjustment component 300 can be taken out, and then the eccentric wheel column 104 can be limited by the screw 202 and the extension part on the fixed shaft 103.

[0049] Specifically, the adjustment assembly 300 includes a replacement part 301 arranged on the inner wall of the eccentric wheel column 104 , a fixing part 302 matching the replacement part 301 is installed on the side wall of the fixed shaft 103 , and a connecting part 303 is installed on the inner wall of the replacement part 301 .

[0050] Furthermore, the replacement part 301 includes a fixing ring 301a arranged on the side wall of the fixing shaft 103, a connecting shaft 301b is installed on the end of the fixing ring 301a, a wedge block 301c is sleeved on the side wall of the connecting shaft 301b, the side view of the wedge block 301c is J-shaped, and a torsion spring 301d is arranged between the wedge block 301c and the connecting shaft 301b.

[0051] Furthermore, the replacement part 301 also includes a rotating ring 301e arranged on the side wall of the fixed ring 301a. The rotating ring 301e and the fixed ring 301a are both located at two ends of the fixed shaft 103, and the spiral groove 205 is located between the two rotating rings 301e.

[0052] Furthermore, the replacement part 301 also includes a limit block 301f arranged on the side wall of the rotating ring 301e. The limit blocks 301f are distributed in a circular array with the midpoint of the rotating ring 301e, and the limit blocks 301f match the limit grooves on the inner wall of the eccentric wheel column 104.

[0053] Furthermore, the replacement part 301 also includes a tooth block 301g arranged on the inner wall of the rotating ring 301e, and the inclined surface on one side of the tooth block 301g matches the inner side surface of the J-shaped middle hook of the wedge block 301c.

[0054] Furthermore, the fixing member 302 includes an inclined block 302a arranged at the end of the fastening head 204 away from the insulating rod 203, the diameter of the inclined block 302a is narrow at the top and wide at the bottom, and the side view of the inclined block 302a is trapezoidal, and an inclined ring 302b is installed at the end where the two rotating rings 301e are close to each other. The diameter of the two inclined rings 302b is the narrowest at the end where the two inclined rings 302b are close to each other, and the diameter increases as the distance is farthest, and the inclined surface of the inclined ring 302b matches the inclined block 302a.

[0055] Furthermore, the connecting member 303 includes a connecting ring 303a arranged on the inner walls of the two rotating rings 301e, and the side wall of the connecting ring 303a is sleeved with a telescopic spring 303b, both ends of the telescopic spring 303b are respectively connected to the two rotating rings 301e, and the connecting ring 303a is slidably connected to the rotating ring 301e.

[0056] The rest of the structure is the same as that of Example 2.

[0057] Operation process: First, pass the conductor to be fixed between the limit groove 106 and the clamping groove 105, then connect the fastening head 204 with the eccentric wheel column 104, and then move the insulating rod 203, and drive the eccentric wheel column 104 on the fastening head 204 to rotate through the insulating rod 203. Since the eccentric wheel column 104 is eccentrically arranged, its diameter will increase during the rotation process, thereby fixing the conductor between the limit groove 106 and the clamping groove 105. Due to the limit block 301f is inserted into the eccentric column 104, so when the rotating eccentric column 104 rotates, it will drive the rotating ring 301e to rotate. Since the rotation of the rotating ring 301e drives the tooth block 301g to rotate, the inclined surface of the tooth block 301g will move the wedge block 301c. When the eccentric column 104 does not rotate, the eccentric column 104 is fixed by the mutual cooperation of the wedge block 301c and the tooth block 301g. When the eccentric column 104 needs to be removed, When fixing the conductor, the insulating rod 203 is rotated, and the inclined block 302a on the fastening head 204 is driven downward by the insulating rod 203, so that the two rotating rings 301e on the connecting ring 303a can move toward each other through the elastic force of the telescopic spring 303b. After the two rotating rings 301e moving toward each other are separated from the limiting groove of the eccentric column 104, the tooth block 301g thereof is separated from the wedge block 301c, thereby canceling the fixation of the eccentric column 104, and then the eccentric column 104 is rotated in the opposite direction. The smaller diameter of the wheel column 104 cancels the fixation of the conductor. When the conductor still needs to be clamped and fixed, the rotating fastening head 204 drives the inclined block 302a to squeeze the inclined ring 302b, and the squeezing force drives the two rotating rings 301e to move in opposite directions. When encountering resistance, the eccentric wheel column 104 is rotated and the squeezing force drives the tooth block 301g on the rotating ring 301e to engage with the wedge block 301c again, so that the eccentric wheel column 104 is rotated to squeeze and fix the conductor.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the property or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method step can be changed or reordered according to the alternative embodiment. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiment. Therefore, the present invention is not limited to specific embodiments.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An eccentric locking grounding clamp that is easy to install and disassemble. Features: include, A clamping assembly (100) comprises a fixed back plate (101), a conductor end fixing clamp (102) arranged at the top of the fixed back plate (101), a fixed shaft (103) being installed on the side wall of the fixed back plate (101), and an eccentric wheel column (104) for fixing the conductor being sleeved on the side wall of the fixed shaft (103); A fixing assembly (200) comprises a threaded groove (201) arranged at the end of the fixing shaft (103), a screw rod (202) being installed inside the threaded groove (201), and the eccentric wheel column (104) is limited by a nut at the end of the screw rod (202); and, The adjustment assembly (300) comprises a replacement part (301) arranged on the inner wall of the eccentric wheel column (104), a fixing part (302) matching the replacement part (301) is installed on the side wall of the fixed shaft (103), and a connecting part (303) is installed on the inner wall of the replacement part (301).

2. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 1, Features: The clamping assembly (100) further comprises a clamping groove (105) arranged on the side wall of the eccentric wheel column (104), and a limiting groove (106) is installed at the bottom end of the inner wall of the conductor end fixing clamp (102) for cooperating with the clamping groove (105) to clamp and fix the conductor.

3. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 2, Features: The clamping assembly (100) further comprises a lower groove (107) arranged on the outer wall of the fixed back plate (101), a grounding wire nose (108) is installed inside the lower groove (107), and the fixed back plate (101) and the conductor end fixing clamp (102) are arranged in a T-shape in a side view.

4. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 3, Features: The fixing assembly (200) further comprises an insulating rod (203) arranged on the side wall of the eccentric column (104), a fastening head (204) being installed at the end of the insulating rod (203), the fastening head (204) passing through the eccentric column (104) and extending to the inside of a spiral groove (205) on the side wall of the fixing shaft (103), the spiral groove (205) being distributed in a circular array with the midpoint of the fixing shaft (103).

5. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 4, Features: The replacement part (301) comprises a fixing ring (301a) arranged on the side wall of the fixing shaft (103); a connecting shaft (301b) is installed on the end of the fixing ring (301a); a wedge block (301c) is sleeved on the side wall of the connecting shaft (301b); the side view of the wedge block (301c) is J-shaped; a torsion spring (301d) is arranged between the wedge block (301c) and the connecting shaft (301b).

6. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 5, Features: The replacement part (301) further comprises a rotating ring (301e) arranged on the side wall of the fixed ring (301a), the rotating ring (301e) and the fixed ring (301a) are both located at two ends of the fixed shaft (103), and the spiral groove (205) is located between the two rotating rings (301e).

7. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 6, Features: The replacement part (301) further comprises a limit block (301f) arranged on the side wall of the rotating ring (301e), wherein the limit blocks (301f) are distributed in a circular array with the midpoint of the rotating ring (301e), and the limit blocks (301f) match the limit grooves on the inner wall of the eccentric wheel column (104).

8. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 7, Features: The replacement part (301) further comprises a tooth block (301g) arranged on the inner wall of the rotating ring (301e), and an inclined surface on one side of the tooth block (301g) matches the inner side surface of the J-shaped middle hook of the wedge block (301c).

9. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 8, Features: The fixing member (302) comprises an inclined block (302a) arranged at the end of the fastening head (204) away from the insulating rod (203); the diameter of the inclined block (302a) is narrow at the top and wide at the bottom, and the side view of the inclined block (302a) is trapezoidal; an inclined ring (302b) is installed at one end of the two rotating rings (301e) close to each other; the diameter of the end of the two inclined rings (302b) close to each other is the narrowest, and the diameter increases as the distance is farthest; the inclined surface of the inclined ring (302b) matches the inclined block (302a).

10. The eccentric locking grounding clamp that is easy to assemble and disassemble as claimed in claim 9, Features: The connecting member (303) comprises a connecting ring (303a) arranged on the inner walls of the two rotating rings (301e), a telescopic spring (303b) is sleeved on the side wall of the connecting ring (303a), two ends of the telescopic spring (303b) are respectively connected to the two rotating rings (301e), and the connecting ring (303a) is connected to the rotating ring (301e) in a sliding manner.

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