A flat grounding device

Abstract

The invention discloses a flat grounding device, which relates to the technical field of conductive grounding, comprising: a chuck, on which a jaw is opened; a clamping member, which comprises a round rod and a clamping plate located in the jaw, the round rod being vertically slidably connected to the chuck, and the clamping plate being fixedly connected to the top of the round rod; a first elastic member, the process of which recovers its elastic deformation drives the clamping member to move up relative to the chuck to pre-clamp a conductive aluminum bar; the flat grounding device can pre-clamp conductive aluminum bars of different thicknesses through the clamping plate in the clamping member, effectively preventing the chuck from falling off the conductive aluminum bar, and through the mutual cooperation between the guiding part, the sliding part and the rotating part in the transmission member, not only can the chuck and the conductive aluminum bar have a thread locking effect, but the whole operation also reduces the number of thread turns between the rotating part and the chuck, and the operation is simple and the work intensity of the staff is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of conductive grounding, in particular to a flat grounding device. Background Art

[0002] When the equipment is under maintenance, the grounding wire is used to prevent the induction of electricity from the nearby high-voltage lines and to discharge the residual charge of the maintenance equipment. It is also a reliable measure to prevent sudden power supply to the power-off maintenance equipment. It is a safety barrier to protect maintenance personnel and can also be called the "lifeline". Improper use of the grounding wire clamp will reduce or even lose the safety protection function of the grounding wire, and sufficient attention must be paid to it.

[0003] At present, a grounding rod with clamping detection is disclosed in the patent number "CN219959469U". It includes an insulating rod, a C-shaped jaw, a movable clamp head, a clamping block, a spring, a sensor, and an indicator. The movable clamp head can be raised and lowered and is arranged in the C-shaped jaw. The insulating rod is connected to the movable clamp head. A chamber is arranged in the movable clamp head. The clamping block is movably arranged in the chamber and the upper end protrudes from the movable clamp head. The spring is arranged in the chamber and one end is against the clamping block. The sensor is arranged in the chamber. The clamping block is squeezed and moved downward into the chamber and can be detected and identified by the sensor. The indicator is connected to the sensor signal. When the movable clamp head clamps the wire, the clamping block is squeezed into the lower movable clamp head and is detected and identified by the sensor. The sensor transmits a signal to the indicator. The operator can confirm the state of the wire through the signal of the indicator, providing more reliable and safe auxiliary equipment for power construction and ensuring the personal safety of the operators.

[0004] The patent number "CN216750321U" discloses a pull-card type flat spring type grounding wire hook, including a grounding hook body, a hook tongue connecting rod, a hook tongue, a positioning groove sleeve, a spring, and a positioning pin; the hook tongue connecting rod passes through the positioning groove sleeve and the through hole at the lower part of the grounding hook body and is connected to the hook tongue; the spring sleeve is arranged on the hook tongue connecting rod, forcing the hook tongue to move toward the upper part of the inner opening of the grounding hook body, and is used to clamp the conductive aluminum bar; wherein, a positioning pin is arranged in the middle of the hook tongue connecting rod, and a clamping groove is processed on the positioning groove sleeve, and the clamping groove cooperates with the positioning pin to limit the movement of the hook tongue connecting rod and the connected hook tongue. The structure is simple, easy to use, and the operation is completed in a short time; by setting the spring, a certain clamping force is generated between the hook tongue and the upper part of the inner opening of the grounding hook body, and this clamping force can meet the use requirements of the grounding hook to hang the conductive aluminum bar; by setting the positioning groove sleeve with a clamping groove and the hook tongue connecting rod with a positioning pin, the hook tongue is in an open state.

[0005] In the prior art such as that provided by the above-mentioned patent, some clamps utilize the elastic force of the spring to clamp and fix the conductive aluminum bar, but they do not have high stability. For example, under the influence of strong winds or other external factors, they are prone to the risk of loosening or even falling off, resulting in poor conductivity and lack of certain safety. Some clamps are spiral-type, but during the clamping and tightening process, workers usually need to rotate multiple times to complete the clamping function, which is cumbersome and physically demanding. Summary of the invention

[0006] The purpose of the present invention is to provide a flat grounding device to solve the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flat grounding device, comprising: a chuck, on which a jaw is opened; a clamping member, which comprises a round rod and a clamping plate located in the jaw, the round rod is vertically slidably connected to the chuck, and the clamping plate is fixedly connected to the top of the round rod; a first elastic member, the process of which recovers its elastic deformation drives the clamping member to move up relative to the chuck to pre-clamp the conductive aluminum bar; a transmission member, which comprises a guide portion fixedly connected to the chuck and located on the vertical sliding path of the round rod, a sliding portion vertically slidably connected to the chuck, and a rotating portion threadedly connected to the chuck, the rotating portion and the sliding portion are rotatably connected, the guide portion comprises a connected vertical sleeve and a conical sleeve, and the sliding portion is fixedly connected to a plurality of spring pieces distributed in a circular array; in the process of the rotating portion rotating relative to the chuck thread, the sliding portion is pushed to move up so that each spring piece abuts against the inner cone surface of the conical sleeve, so that the upper end of each spring piece closes and clamps the round rod, and then the sliding portion moves up in the vertical sleeve to drive the clamping member to move up and lock the conductive aluminum bar.

[0008] Preferably, it also includes a first locking member, which includes: a locking block, which is horizontally slidably connected to the clamp; and a second elastic member, the process of restoring elastic deformation of which is used to drive the locking block to slide horizontally to engage with the clamp.

[0009] Preferably, a side of each of the spring sheets that abuts and clamps the round rod is fixedly connected with an arc-shaped protrusion, and a non-slip soft rubber pad is fixedly connected to the protrusion.

[0010] Preferably, the rotating part comprises a vertical section matched with the chuck thread and a rotating sleeve rod fixedly connected to the vertical section, and the rotating sleeve rod is internally threadedly connected to a hand-held rod.

[0011] Preferably, a limiting block is fixedly connected to one side of the opening of the chuck, and when the clamping member pre-clamps the conductive aluminum bar, a closed cavity is formed between the limiting block, the chuck and the clamping plate to limit the conductive aluminum bar from escaping from the jaws.

[0012] Preferably, the first elastic member is an elastic telescopic rod, which is located in the inner cavity of the hand-held rod, one end of the elastic telescopic rod is fixedly connected to the round rod, and the other end is fixedly connected to the bottom end of the inner cavity.

[0013] Preferably, the top of the locking block is fixedly connected to a wedge block, and the inclined surface of the wedge block is arranged upward.

[0014] In the above technical scheme, the present invention provides a flat-mouth grounding device. When the conductive aluminum bar is located in the jaws, the elastic force of the first elastic member is released to allow the round rod and the clamping plate in the clamping member to move up, and the clamping plate can abut against and clamp the conductive aluminum bar, thereby completing the pre-clamping effect of the conductive aluminum bar, and at the same time can be adapted to abut against and clamp conductive aluminum bars of different thicknesses; thereafter, the rotating part is driven to rotate relative to the chuck thread, and when the rotating part thread rotates one circle, the rotating part will push the sliding part to move upward so that each spring sheet slides along the inner conical surface of the conical sleeve until the upper end of each spring sheet abuts against the clamping round rod, and then when the rotating part thread rotates a second circle, the rotating part will continue to push the sliding part, and the vertically sliding sliding part will synchronously drive the round rod clamped by each spring sheet to move upward, so that the clamping plate can further abut against and lock the conductive aluminum bar. To sum up, not only can the clamp be driven to pre-clamp conductive aluminum bars of different thicknesses, effectively preventing the chuck from falling off the conductive aluminum bars, and improving the practicability of the entire device to a certain extent, at the same time, because the rotating part and the chuck are threadedly connected, and combined with the process of threaded rotation of the rotating part, not only can the chuck and the conductive aluminum bar have a threaded locking effect, so that the chuck can be stably locked on the conductive aluminum bar, thereby increasing the stability between the entire device and the conductive aluminum bar, it can prevent sliding or shaking between the chuck and the conductive aluminum bar, improve the grounding effect of the entire device, and thereby increase the safety of the working environment of the staff; at the same time, the entire operation reduces the number of thread turns between the rotating part and the chuck, and the operation is simple and greatly reduces the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0017] Figure 2 A cross-sectional view of a chuck provided by an embodiment of the present invention;

[0018] Figure 3 The motion state of the rotating part provided by the embodiment of the present invention Figure Ⅰ;

[0019] Figure 4 The embodiment of the present invention provides Figure 3 A magnified view of middle;

[0020] Figure 5 The motion state of the rotating part provided by the embodiment of the present invention Figure II ;

[0021] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged view of middle B;

[0022] Figure 7 The motion state of the rotating part provided by the embodiment of the present invention Figure III ;

[0023] Figure 8 The embodiment of the present invention provides Figure 7 Enlarged view of C in the middle.

[0024] Description of reference numerals:

[0025] 1. Chuck; 2. Jaw; 3. Clamping member; 31. Round rod; 32. Clamping plate; 4. First elastic member; 5. Transmission member; 51. Guide portion; 511. Vertical sleeve; 512. Conical sleeve; 52. Sliding portion; 53. Rotating portion; 531. Vertical section; 532. Rotating sleeve; 54. Shrapnel; 6. First locking member; 61. Locking block; 62. Second elastic member; 7. Anti-skid soft rubber pad; 8. Hand-held rod; 9. Limiting block; 10. Wedge block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-8A flat grounding device provided by an embodiment of the present invention comprises: a chuck 1, a clamping member 3, a first elastic member 4 and a transmission member 5; a jaw 2 is provided on the chuck 1; the clamping member 3 comprises a round rod 31 and a clamping plate 32 located in the jaw 2, the round rod 31 is vertically slidably connected to the chuck 1, and the clamping plate 32 is fixedly connected to the top of the round rod 31; the process of the first elastic member 4 restoring elastic deformation drives the clamping member 3 to move upward relative to the chuck 1 to pre-clamp the conductive aluminum bar; the transmission member 5 comprises a guide portion 51 fixedly connected to the chuck 1 and located on the vertical sliding path of the round rod 31, a guide portion 51 vertically slidably connected to the chuck 1 The sliding part 52 and the rotating part 53 threadedly connected to the chuck 1, the rotating part 53 and the sliding part 52 are rotatably connected, the guide part 51 includes a vertical sleeve 511 and a conical sleeve 512 connected to each other, and a plurality of spring pieces 54 distributed in a circumferential array are fixedly connected to the sliding part 52; during the process of the rotating part 53 threadedly rotating relative to the chuck 1, the sliding part 52 is pushed to move upward so that each spring piece 54 abuts against the inner conical surface of the conical sleeve 512, so that the upper end of each spring piece 54 closes and clamps the round rod 31, and then the sliding part 52 moves upward in the vertical sleeve 511 to drive the clamping member 3 to move upward and lock the conductive aluminum bar. It should be noted that the conical sleeve 512 is specifically arranged to be narrow at the top and wide at the bottom. At this point, when each spring piece 54 slides along the inner conical surface of the conical sleeve 512, the upper end of each spring piece 54 will close to clamp the round rod 31. The sliding part 52 is a sliding ring, on which a limiting protrusion is fixedly connected, and the chuck 1 is provided with a limiting groove for the limiting protrusion to slide up and down. Therefore, when the rotating part 53 pushes the sliding part 52, the sliding part 52 can only slide vertically relative to the chuck 1.

[0028] The rotating part 53 includes a vertical section 531 threadedly matched with the chuck 1 and a rotating sleeve 532 fixedly connected to the vertical section 531, and the rotating sleeve 532 is internally threadedly connected with a hand-held rod 8. In a preferred state, the maximum stroke of the vertical section 531 and the chuck 1 thread is 2 circles. When the rotating part 53 rotates one circle relative to the chuck 1 thread, the vertical section 531 will push the sliding part 52 upward to make the upper end of each spring sheet 54 close and clamp the round rod 31. After that, when the rotating part 53 rotates the second circle relative to the chuck 1 thread, the outer side surface of each spring sheet 54 will slide up along the inner wall of the vertical sleeve 511. At this time, the round rod 31 clamped by each spring sheet 54 will synchronously slide up along the vertical sleeve 511 relative to the chuck 1 until the clamping plate 32 can be driven to press against the conductive aluminum bar to achieve the effect of locking the conductive aluminum bar. A limit ring is fixedly connected to one end of the vertical section 531 abutting against the sliding part 52, and the limit ring is used to limit the vertical section 531 from being separated from the chuck 1. An insulating sleeve is fixedly connected to the end of the rotating sleeve rod 532 and the end of the hand-held rod 8. It should be further explained that before the insulating sleeve of the rotating sleeve rod 532 is held to drive the vertical section 531 of the rotating part 53 to rotate relative to the chuck 1 thread, the staff should first hold the insulating sleeve of the hand-held rod 8 and tighten it downward to ensure that there is a certain abutment force between the chuck 1 and the conductive aluminum row, so that it is more convenient for the staff to drive the rotating part 53 to rotate threadedly. It should be further explained that when the rotating part 53 and the chuck 1 threadedly rotate to the maximum stroke, the rotating sleeve rod 532 will not separate from the hand-held rod 8.

[0029] Specifically, after the conductive aluminum row is located in the jaws 2, the elastic force of the first elastic member 4 is released to allow the round rod 31 and the clamping plate 32 in the clamping member 3 to move upward, and the clamping plate 32 can abut against and clamp the conductive aluminum row, thereby completing the pre-clamping effect of the conductive aluminum row, and at the same time can be adapted to abut against and clamp conductive aluminum rows of different thicknesses; thereafter, the driving rotating portion 53 is threadedly rotated relative to the chuck 1, and when the rotating portion 53 is threadedly rotated one circle, the rotating portion 53 will push the sliding portion 52 to move upward so that each spring sheet 54 slides along the inner conical surface of the conical sleeve 512 until the upper end of each spring sheet 54 abuts against the clamping round rod 31, and then when the rotating portion 53 is threadedly rotated a second circle, the rotating portion 53 will continue to push the sliding portion 52, and the vertically sliding sliding portion 52 will synchronously drive the round rod 31 clamped by each spring sheet 54 to move upward, so that the clamping plate 32 can further abut against and lock the conductive aluminum row. In summary, not only can the clamp 32 be driven to pre-clamp the conductive aluminum bars of different thicknesses, effectively preventing the chuck 1 from falling off the conductive aluminum bars, but also the practicality of the entire device can be improved to a certain extent. At the same time, because the rotating part 53 and the chuck 1 are threadedly connected, and combined with the process of threaded rotation of the rotating part 53, not only can the chuck 1 and the conductive aluminum bar have a threaded locking effect, so that the chuck 1 can be stably locked on the conductive aluminum bar, thereby increasing the stability between the entire device and the conductive aluminum bar, and can prevent sliding or shaking between the chuck 1 and the conductive aluminum bar, thereby improving the grounding effect of the entire device, thereby increasing the safety of the working environment of the staff; at the same time, the entire operation reduces the number of thread turns between the rotating part 53 and the chuck 1, and the operation is simple and greatly reduces the work intensity of the staff.

[0030] Among them, each spring piece 54 is fixedly connected with an arc-shaped protrusion on one side of the round rod 31 for clamping, and an anti-skid soft rubber pad 7 is fixedly connected to the protrusion. The anti-skid soft rubber pad 7 can increase the friction between the round rod 31 and the spring piece 54, which can not only better clamp the round rod 31, but also better drive the round rod 31 to move up in the process of driving the spring piece 54 to move up so that the clamping plate 32 can lock the conductive aluminum bar. At this point, the whole device can be better locked on the conductive aluminum bar, which increases the stability between the conductive aluminum bar and the clamp 1, which is conducive to a better grounding effect later.

[0031] The first locking member 6 is also included, which includes a locking block 61 and a second elastic member 62. The locking block 61 is horizontally slidably connected to the chuck 1; the process of the second elastic member 62 restoring elastic deformation is used to drive the locking block 61 to slide horizontally to engage with the clamping plate 32. The second elastic member 62 includes a storage cavity opened on the chuck 1, and at least one sliding rod is slidably connected to the chuck 1, and one end of the sliding rod is fixedly connected to the chuck 1, and a first spring is sleeved on the sliding rod, one end of the first spring is fixedly connected to the chuck 1, and the other end is fixedly connected to the inner wall of the storage cavity. The top of the locking block 61 is fixedly connected to the wedge block 10, and the inclined surface of the wedge block 10 is arranged upward. Specifically, when the conductive aluminum row enters from the entrance of the jaw 2, the conductive aluminum row will abut the locking block 61 and push the locking block 61 to be stored in the storage cavity under the action of human beings. After that, the first elastic member 4 can restore the deformation so that the clamping plate 32 abuts and clamps the conductive aluminum row.

[0032] Among them, the limit block 9 is fixedly connected to one side of the opening of the chuck 1, and when the clamping member 3 pre-clamps the conductive aluminum row, a closed cavity is formed between the limit block 9, the chuck 1 and the clamping plate 32 to limit the conductive aluminum row from leaving the jaw 2. Among them, it should be noted that the lower oblique end of the limit block 9 has an inclined surface, which is conducive to the conductive aluminum row entering the jaw 2; and it should be further noted that the lower oblique end of the inclined surface of the limit block 9 can be preferably flush with the upper oblique end of the inclined surface of the wedge block 10 or the upper oblique end of the inclined surface of the wedge block 10 is higher than the lower oblique end of the inclined surface of the limit block 9, which is conducive to the conductive aluminum row to squeeze the locking block 61 immediately after entering the jaw 2 to complete the unlocking process of the clamping plate 32.

[0033] The first elastic member 4 is an elastic telescopic rod, which is located in the inner cavity of the hand-held rod 8, one end of the elastic telescopic rod is fixedly connected to the round rod 31, and the other end is fixedly connected to the bottom end of the inner cavity. It should be noted that a sliding block is fixedly connected to the extended end of the inner rod of the elastic telescopic rod, and a damping member (not shown in the figure) is provided between the sliding block and the inner wall of the inner cavity. In this way, during the process of the first elastic telescopic rod restoring elastic deformation, the round rod 31 can be driven to slide at a uniform speed so that the clamping plate 32 abuts against and clamps the conductive aluminum row, thereby preventing the elastic force of the elastic telescopic rod restoring elastic deformation from driving the round rod 31 to slide too fast and causing the clamping plate 32 to damage the surface of the conductive aluminum row.

[0034] In summary, when the conductive aluminum bar needs to be unlocked so as to remove the chuck 1 from the conductive aluminum bar, it is only necessary to rotate the rotating sleeve rod 532 in the opposite direction to make the vertical section 531 of the rotating part 53 spirally move downward relative to the chuck 1, and the maximum stroke only needs to be rotated two circles. During the process of the vertical section 531 of the rotating part 53 spirally moving downward relative to the chuck 1, the sliding part 52 rotatably connected to the vertical section 531 can be driven to move downward, so that the spring pieces 54 fixedly connected to the sliding part 52 can be driven to disengage from the vertical sleeve 511 and the conical sleeve 512 in turn, thereby completing the unlocking effect of the round rod 31. The operation process is simple and convenient, and reduces the work intensity of the staff to a certain extent. When the round rod 31 is unlocked, the staff only needs to shake hands at this time. The insulating sleeve of the holding rod 8 drives the entire chuck 1 to move upward, and the clamp 32 moves vertically downward in the jaw 2 relative to the chuck 1. At this time, the clamp 32 will abut the inclined surface of the wedge block 10 and drive the locking block 61 to be stored in the storage cavity until the clamp 32 slides to the bottom end of the jaw 2, and then the entire device is pulled to make the conductive aluminum row detach from the jaw 2. At the same time, the first spring will restore its elastic deformation, and the elastic force of the first spring will restore its elastic deformation to drive the locking block 61 to slide horizontally so that the locking block 61 slides out of the storage cavity, and the bottom of the locking block 61 will abut the upper surface of the clamp 32. At this point, the entire device is removed from the conductive aluminum row, and the locking work of the clamp 32 can be completed at the same time, which is convenient for installing the entire device on the conductive aluminum row next time.

[0035] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flat grounding device, characterized in that: include: A chuck (1) having a jaw (2) formed thereon; A clamping member (3), comprising a round rod (31) and a clamping plate (32) located in the jaws (2), wherein the round rod (31) is vertically slidably connected to the clamping head (1), and the clamping plate (32) is fixedly connected to the top of the round rod (31); The first elastic member (4) drives the clamping member (3) to move upward relative to the clamping head (1) to pre-clamp the conductive aluminum row during the process of restoring its elastic deformation; A transmission member (5), comprising a guide portion (51) fixedly connected to the chuck (1) and located on a vertical sliding path of the round rod (31), a sliding portion (52) vertically slidably connected to the chuck (1), and a rotating portion (53) threadedly connected to the chuck (1), the rotating portion (53) being rotatably connected to the sliding portion (52), the guide portion (51) comprising a vertical sleeve (511) and a conical sleeve (512) connected to each other, and a plurality of spring pieces (54) distributed in a circumferential array being fixedly connected to the sliding portion (52); During the process of the rotating portion (53) rotating relative to the chuck (1) by threading, the sliding portion (52) is pushed upward so that each spring sheet (54) abuts against the inner conical surface of the conical sleeve (512), so that the upper end of each spring sheet (54) closes and clamps the round rod (31), and then the sliding portion (52) moves upward in the vertical sleeve (511) to drive the clamping member (3) to move upward and lock the conductive aluminum bar.

2. A flat grounding device according to claim 1, characterized in that: Also included is a first locking member (6), which comprises: A locking block (61) horizontally slidably connected to the chuck (1); The second elastic member (62) recovers its elastic deformation in a process used to drive the locking block (61) to slide horizontally so as to engage with the clamping plate (32).

3. A flat grounding device according to claim 1, characterized in that: A curved protrusion is fixedly connected to one side of each of the spring sheets (54) that abuts and clamps the round rod (31), and a non-slip soft rubber pad (7) is fixedly connected to the protrusion.

4. A flat grounding device according to claim 1, characterized in that: The rotating portion (53) comprises a vertical section (531) threadedly matched with the chuck (1) and a rotating sleeve rod (532) fixedly connected to the vertical section (531); the rotating sleeve rod (532) is internally threadedly connected to a hand-held rod (8).

5. A flat grounding device according to claim 1, characterized in that: One side of the opening of the clamp (1) is fixedly connected to a limit block (9); when the clamping member (3) pre-clamps the conductive aluminum bar, a closed cavity is formed between the limit block (9), the clamp (1) and the clamping plate (32) to prevent the conductive aluminum bar from escaping from the jaws (2).

6. A flat grounding device according to claim 1, characterized in that: The first elastic member (4) is an elastic telescopic rod, which is located in the inner cavity of the hand-held rod (8); one end of the elastic telescopic rod is fixedly connected to the round rod (31), and the other end is fixedly connected to the bottom end of the inner cavity.

7. A flat grounding device according to claim 2, characterized in that: The top of the locking block (61) is fixedly connected to the wedge block (10), and the inclined surface of the wedge block (10) is arranged upward.

Images