Temporary grounding wire
Through the combined structure of the conductor fastening device and the ground fastening device, the pre-compression state of the elastic member and the locking mechanism is used to solve the problem of insufficient fastening force during the installation of the temporary ground wire, and a stable connection and safe discharge are achieved, reducing the burden on the operator.
Patent Information
- Application Number
- CN202211209398.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2042-09-30
AI Technical Summary
During the installation process of the existing temporary grounding wire, the connecting wire is heavy, resulting in exhaustion of the worker's strength, insufficient tightening force, unable to achieve the ideal grounding effect, there is a risk of fuse, and the existing locking device is not effective, which is time-consuming and labor-intensive.
A combined structure including a conductor fastening device and a ground fastening device is designed, and a bracket, clamping mechanism, locking mechanism and elastic member are adopted. Through the pre-compression state of the elastic member and the coordination of the locking mechanism, automatic tightening of the conductor and the grounding body are realized, reducing manual operation.
It realizes a stable connection between the temporary grounding wire and the grounding body and the conductor terminal, which reduces the burden on the operator, makes the operation simple, time-saving and labor-saving, and ensures operation safety.
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Figure CN115441219B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric power construction and maintenance equipment, in particular to a temporary grounding wire. Background Art
[0002] In the field of power equipment, regular power outages and maintenance are usually required, or repairs are performed when problems occur. When repairing such power equipment, installing a temporary grounding wire is an essential step that can effectively protect the personal safety of the operators.
[0003] The temporary grounding wire consists of a grounding end, a conductor end, and a connecting wire with an insulating rubber sleeve. During the installation process, since most of the electrical equipment is operated at high altitude, the operator first inserts the grounding end of the temporary grounding wire into the dedicated grounding body socket reserved at the equipment site and tightens it with a nut; then the conductor end of the temporary grounding wire is lifted with a grounding rod, hung to the conductor terminal of the power-off equipment, and the grounding rod is rotated to tighten the conductor end of the temporary grounding wire, allowing the electrical equipment to discharge. During the process of disassembling and installing the grounding wire, due to the heavy weight of the connecting wire, the operator may become exhausted, which will cause the conductor end of the temporary grounding wire to not fully fit with the conductor terminal of the equipment, resulting in insufficient tightening force and failure to achieve the ideal grounding effect, greatly reducing ergonomics.
[0004] At the same time, because the contact between the conductor end and the equipment, as well as the grounding end and the grounding body, is hard contact, it is impossible to ensure sufficient toughness for the tightening force. If the conductor terminals of the temporary grounding wire are not completely in contact with the grounding body and the conductor terminals of the equipment during the tightening process, the current carrying capacity of the temporary grounding wire will not reach the rated current value required by the design, and there is a risk of melting the temporary grounding wire and losing protection. Although some locking devices similar to these have been designed in the prior art to increase the tightening force, the effect is not good. There are still problems such as insufficient force, time-consuming and labor-intensive, and the tightening of the two ends cannot meet the requirements continuously.
[0005] Therefore, it is urgent to design a temporary grounding wire to solve the above problems. Summary of the Invention
[0006] The purpose of the present invention is to provide a temporary grounding wire that can ensure tightness when connected to a grounding body and power equipment, while reducing the burden on operators.
[0007] To achieve this object, the present invention adopts the following technical solutions:
[0008] Temporary grounding wire, including:
[0009] The conductor fastening device includes a bracket, a first clamping mechanism, a second clamping mechanism and a locking mechanism. The first clamping mechanism and the second clamping mechanism are respectively movably arranged in the bracket along a first direction. A first elastic member is provided between the first elastic member of the first clamping mechanism and the bracket, and the other end is connected to the first clamping mechanism. One end of the second clamping mechanism can be connected to the grounding rod, and the other end can clamp the conductor terminal with the first clamping mechanism; the locking mechanism is provided on the bracket, and one end of the locking mechanism can lock the first clamping mechanism to a limited position so that the first elastic member maintains a preset compression state; the other end of the locking mechanism is connected to the second clamping mechanism and can drive the locking mechanism to move under the drive of the second clamping mechanism, so that one end of the locking mechanism is separated from the first clamping mechanism;
[0010] A connecting wire, one end of which is fixedly connected to the bracket; and
[0011] The grounding fastening device is provided at the other end of the connecting wire, and the grounding fastening device is configured to be fastened to the grounding body.
[0012] Optionally, the locking mechanism includes:
[0013] a clamping member movably disposed on the bracket along a second direction and capable of being engaged with or separated from the first clamping mechanism, wherein the second direction is perpendicular to the first direction;
[0014] a second elastic member, one end of which is connected to the bracket, and the other end of which is connected to the clamping member, wherein the second elastic member can drive the clamping member to engage with the first clamping mechanism; and
[0015] A transmission assembly has one end connected to the second clamping mechanism and the other end connected to the clamping member. The transmission assembly is configured to drive the clamping member to separate from the first clamping mechanism.
[0016] Optionally, the locking mechanism further includes a first limiting groove, which is provided on the bracket along the second direction, and the clamping member is slidably disposed in the first limiting groove.
[0017] Optionally, the transmission assembly includes:
[0018] A second limiting groove is provided on the bracket along the first direction;
[0019] a first connecting member slidably disposed in the second limiting groove, wherein one end of the first connecting member is connected to the second clamping mechanism and can move along the first direction with the second clamping mechanism; and
[0020] The second connecting member has two ends rotatably connected to the clamping member and the other end of the first connecting member.
[0021] Optionally, the first clamping mechanism includes:
[0022] A first adjusting rod is provided through the bracket, and the first adjusting rod is provided with a slot, and the locking mechanism can be engaged with the slot;
[0023] a first pressing plate, fixedly connected to one end of the first adjusting rod facing the second clamping mechanism, the first pressing plate and the second clamping mechanism being capable of clamping the conductor terminal; and
[0024] The distance adjusting knob is movably connected to the above-mentioned first adjusting rod along the first direction and is arranged between the above-mentioned first pressure plate and the above-mentioned bracket. The above-mentioned distance adjusting knob is connected to the above-mentioned first elastic member. The above-mentioned distance adjusting knob is configured to be able to adjust the distance between the above-mentioned first pressure plate and the above-mentioned second clamping mechanism along the first direction.
[0025] Optionally, the distance adjusting knob is provided with an internal thread, the first adjusting rod is provided with an external thread, and the distance adjusting knob is threadably connected to the first adjusting rod.
[0026] Optionally, the second clamping mechanism includes:
[0027] A second adjusting rod is movably provided on the bracket;
[0028] a second pressing plate, fixedly connected to one end of the second adjusting rod facing the first clamping mechanism, the second pressing plate being capable of clamping the conductor terminal together with the first clamping mechanism; and
[0029] The connector is fixedly connected to one end of the second adjusting rod away from the first clamping mechanism, and the connector can be fixedly connected to the grounding rod.
[0030] Optionally, the second adjusting rod is provided with an external thread, the bracket is provided with a threaded hole, and the second adjusting rod is threadedly connected to the threaded hole.
[0031] Optionally, the grounding fastening device includes:
[0032] A third adjusting rod includes a limiting portion, and a connecting portion and an adjusting portion respectively provided on both sides of the limiting portion, wherein the connecting portion is fixedly connected to one end of the connecting wire;
[0033] a third pressing plate, movably disposed on the adjusting portion;
[0034] a third elastic member, disposed between the third adjusting rod and the third pressing plate and sleeved on the adjusting portion; and
[0035] The adjusting component is movably disposed on the adjusting portion, and the adjusting component can move toward the third pressing plate to compress the third elastic member to a preset compression state.
[0036] Optionally, the adjustment assembly includes an adjustment nut, the adjustment portion is provided with an external thread, and the adjustment nut is threadedly connected to the adjustment portion.
[0037] Beneficial effects of the present invention:
[0038] The present invention provides a temporary grounding wire. When installing the temporary grounding wire, the operator first fastens the grounding fastening device to the grounding body, then adjusts the distance between the first clamping mechanism and the bracket so that the distance between the first clamping mechanism and the second clamping mechanism meets the connection thickness of the conductor terminal on the equipment; after adjusting the distance, the first clamping mechanism is moved toward the bracket to a preset position and locked with the locking mechanism so that the first elastic member maintains a preset compression state; then adjusts the second clamping mechanism so that the distance between it and the first clamping mechanism meets the connection thickness of the conductor terminal on the equipment, and the operator clamps the second clamping mechanism to the bracket. The mechanism is connected to the grounding rod, and the conductor fastening device is erected. The conductor terminal is clamped between the first clamping mechanism and the second clamping mechanism. The grounding rod is used to drive the second clamping mechanism toward the first clamping mechanism. At this time, the locking mechanism is separated from the first clamping mechanism, allowing the first clamping mechanism, which is in a preset compressed state, to clamp the conductor terminal together with the second clamping mechanism. To ensure the tight connection between the conductor terminal and the conductor fastening device, the operator can continue to drive the second clamping mechanism toward the first clamping mechanism through the grounding rod to increase the tightness of the conductor terminal. Finally, the grounding rod is removed to complete the loading. After loading is completed, the residual power of the connected equipment can be transferred to the grounding body through the connecting wire, thereby discharging the electrical equipment and ensuring the safety of the operator during inspection or maintenance. Through this operation, not only can the tightness of the connection between the temporary grounding wire and the grounding body and the conductor terminal be met, but the burden on the operator can also be reduced. The connection between the temporary grounding wire and the grounding body and the conductor terminal can be tightened by simply driving the second clamping mechanism toward the first clamping mechanism. The operation is simple and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Figure 1 It is a structural schematic diagram of a temporary grounding wire provided in a specific embodiment of the present invention;
[0040] Figure 2 is a structural schematic diagram of a conductor fastening device provided in a specific embodiment of the present invention;
[0041] Figure 3 It is a structural schematic diagram of a grounding fastening device provided in a specific embodiment of the present invention.
[0042] In the picture:
[0043] 10. Conductor fastening device;
[0044] 11. Bracket; 111. Vertical portion; 112. First horizontal portion; 113. Second horizontal portion;
[0045] 12. First clamping mechanism; 121. First elastic member; 122. First adjusting rod; 1221. Position limiting portion; 1222. Main body; 1223. Second marking line; 123. First pressing plate; 124. Distance adjustment knob;
[0046] 13. Second clamping mechanism; 131. Second adjusting rod; 132. Second pressing plate; 133. Connector;
[0047] 14. Locking mechanism; 141. Clamping member; 1411. Clamping shaft; 1412. Third connecting member; 142. Second elastic member; 143. Transmission assembly; 1431. Second limiting groove; 1432. First connecting member; 1433. Second connecting member; 144. First limiting groove;
[0048] 20. Connect the wires;
[0049] 30. Grounding fastening device; 31. Third adjusting rod; 311. Limiting portion; 312. Connecting portion; 313. Adjusting portion; 3131. First marking line; 32. Third pressing plate; 33. Third elastic member; 34. Adjusting assembly; 341. Adjusting nut; 342. Fourth pressing plate. DETAILED DESCRIPTION
[0050] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.
[0051] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.
[0052] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0053] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.
[0054] Example 1:
[0055] This embodiment provides a temporary grounding wire, which is used to be installed during the inspection or maintenance of power equipment to ensure the personal safety of the operators, and ensure the tightness of the temporary grounding wire when connected to the grounding body and the power equipment respectively, while reducing the burden on the operators. It should be noted that in this embodiment, the first direction is Figure 1 The Y direction, the second direction is Figure 1 In the X direction, the first direction and the second direction are perpendicular to each other.
[0056] In this embodiment, if Figure 1 As shown, the temporary grounding wire includes a conductor fastening device 10, a connecting wire 20 and a grounding fastening device 30. The grounding fastening device 30 can be fastened to the grounding body, thereby ensuring the stability of the connection between the temporary grounding wire and the grounding body, and avoiding poor contact; the conductor fastening device 10 can be fastened to the conductor terminal of the equipment, thereby ensuring the stability of the connection between the temporary grounding wire and the equipment, and avoiding poor contact; and one end of the connecting wire 20 is fixedly connected to the conductor fastening device 10, and the other end is fixedly connected to the grounding fastening device 30, which can conduct the residual electricity on the power-off equipment into the grounding body to realize the discharge of the equipment, thereby ensuring the safety of the workers during construction.
[0057] Specifically, if Figure 1 and Figure 2As shown, the conductor fastening device 10 includes a bracket 11, a first clamping mechanism 12, a second clamping mechanism 13 and a locking mechanism 14. The first clamping mechanism 12 and the second clamping mechanism 13 are respectively movably arranged in the bracket 11 along a first direction, so that the first clamping mechanism 12 and the second clamping mechanism 13 can be brought closer or farther away from each other; one end of the second clamping mechanism 13 can be connected to the grounding rod, and the other end can clamp the conductor terminal with the first clamping mechanism 12. The operator adjusts the distance between the first clamping mechanism 12 and the second clamping mechanism 13 by operating the grounding rod, which facilitates the operator to operate the temporary grounding wire remotely. In addition, a first elastic member 121 is provided between the first clamping mechanism 12 and the bracket 11, which can realize the elastic connection between the first clamping mechanism 12 and the bracket 11, so that when the first clamping mechanism 12 and the second clamping mechanism 13 clamp the conductor terminal, the second clamping mechanism 13 can be continuously moved toward the first clamping mechanism 12 by operating the grounding rod, so that the first elastic member 121 is continuously compressed and applies force to the conductor terminal, thereby realizing the fastening of the conductor terminal by the first clamping mechanism 12 and the second clamping mechanism 13.
[0058] Furthermore, a locking mechanism 14 is provided on the bracket 11, and one end of the locking mechanism 14 can lock and limit the first clamping mechanism 12, so that the first elastic member 121 maintains a preset compression state (the preset compression state here refers to the degree of compression of the first elastic member 121 when the first clamping mechanism 12 and the second clamping mechanism 13 can achieve a fastening connection to the conductor terminal), thereby enabling the first clamping mechanism 12 to maintain a certain clamping force in advance before installation; the other end of the locking mechanism 14 is connected to the second clamping mechanism 13 and can drive the locking mechanism 14 to move under the drive of the second clamping mechanism 13, so that one end of the locking mechanism 14 is separated from the first clamping mechanism 12, thereby enabling the first clamping mechanism 12 and the second clamping mechanism 13, which maintain a certain clamping force, to clamp the conductor terminal without excessive operation, thereby reducing the burden on the operator.
[0059] Through the above structure, when the operator is installing the temporary grounding wire, he first fastens the grounding fastening device 30 to the grounding body, and then adjusts the distance between the first clamping mechanism 12 and the bracket 11 so that the distance between the first clamping mechanism 12 and the second clamping mechanism 13 meets the connection thickness of the conductor terminal on the equipment; after adjusting the distance, the first clamping mechanism 12 is moved toward the bracket 11 to a preset position and locked with the locking mechanism 14, so that the first elastic member 121 maintains a preset compression state; then adjust the second clamping mechanism 13 so that the distance between it and the first clamping mechanism 12 meets the connection thickness of the conductor terminal on the equipment, and the preparation work for installing the conductor fastening device 10 is completed.
[0060] Then, the operator connects the second clamping mechanism 13 to the grounding rod, so that the conductor terminal is clamped in the first clamping mechanism 12 and the second clamping mechanism 13, and drives the second clamping mechanism 13 toward the first clamping mechanism 12 through the grounding rod. At this time, the locking mechanism 14 is separated from the first clamping mechanism 12, so that the first clamping mechanism 12 in the preset compression state can clamp the conductor terminal with the second clamping mechanism 13; to ensure the tight connection between the conductor terminal and the conductor fastening device 10, the operator can continue to drive the second clamping mechanism 13 toward the first clamping mechanism 12 through the grounding rod to increase the tightness of the conductor terminal; finally, the grounding rod is removed to complete the loading. After loading is completed, the residual power of the connected equipment can be transferred to the grounding body through the connecting wire 20, realizing the discharge of the electrical equipment, ensuring the safety of the operator when performing inspection or maintenance.
[0061] The above operation can not only meet the tightness of the connection between the temporary grounding wire and the grounding body and the conductor terminal respectively, but also reduce the burden on the operating personnel. The temporary grounding wire can be tightened at the connection between the grounding wire and the grounding body and the conductor terminal only by driving the second clamping mechanism 13 toward the first clamping mechanism 12. The operation is simple, saving time and effort.
[0062] In this embodiment, if Figure 2 As shown, the locking mechanism 14 includes a clamping member 141, a second elastic member 142, and a transmission assembly 143. The clamping member 141 is movably arranged on the bracket 11 along the second direction and can be engaged with or separated from the first clamping mechanism 12. One end of the second elastic member 142 is connected to the bracket 11, and the other end is connected to the clamping member 141. The clamping member 141 can be driven by the second elastic member 142 to engage with the first clamping mechanism 12. One end of the transmission assembly 143 is connected to the second clamping mechanism 13, and the other end is connected to the clamping member 141. The transmission assembly 143 can drive the clamping member 141 to separate from the first clamping mechanism 12. Through the above arrangement, the second elastic member 142 can drive the clamping member 141 to engage with the first clamping mechanism 12, and the transmission assembly 143 can drive the clamping member 141 to separate from the first clamping mechanism 12. Specifically, the clamping member 141 is arranged on one side of the first clamping mechanism 12 along the first direction, and the second elastic member 142 and the transmission assembly 143 are arranged on the other side of the first clamping mechanism 12. The second elastic member 142 is in a stretched state when it is clamped, so that when the clamping member 141 is in a position where it can be clamped with the first clamping mechanism 12, the clamping member 141 can move quickly toward the second elastic member 142, so that the clamping member 141 is clamped to the first clamping mechanism 12.
[0063] Furthermore, the locking mechanism 14 also includes a first limiting groove 144, which is opened on the bracket 11 along the second direction. The clip 141 is slidably set in the first limiting groove 144, so that the clip 141 can be movably set with the bracket 11 along the second direction, and the movement range of the clip 141 is limited.
[0064] Specifically, if Figure 2 As shown, the transmission assembly 143 includes a second limiting groove 1431, a first connecting member 1432 and a second connecting member 1433. The second limiting groove 1431 is opened on the bracket 11 along the first direction; the first connecting member 1432 is slidably arranged in the second limiting groove 1431 and one end of the first connecting member 1432 is connected to the second clamping mechanism 13 and can move along the first direction with the second clamping mechanism 13; the two ends of the second connecting member 1433 are respectively rotatably connected to the clamping member 141 and the other end of the first connecting member 1432, so that When the mechanism 13 moves along the first direction, it can drive the first connecting member 1432 to move along the first direction, thereby driving the second connecting member 1433 to move toward the clamping member 141, and then making the clamping member 141 move along the second direction. It can be achieved that when the first clamping mechanism 12 moves along the first direction toward the first clamping mechanism 12, it can drive the clamping member 141 to move along the second direction away from the first clamping mechanism 12. At this time, the second elastic member 142 is stretched, and the clamping member 141 is separated from the first clamping mechanism 12.
[0065] Optionally, the connection between the first clamping mechanism 12, the first connecting member 1432, the second connecting member 1433, and the clamping member 141 is achieved through a connecting shaft. The first clamping mechanism 12 and one end of the first connecting member 1432 are coaxially arranged, the other end of the first connecting member 1432 is coaxially arranged with one end of the second connecting member 1433, and the other end of the second connecting member 1433 is coaxially arranged with the clamping member 141. It will be understood that in this embodiment, the connecting shafts connected to both ends of the first connecting member 1432 are both disposed within the second limiting groove 1431 to guide and limit the movement of the first connecting member 1432, so that the first connecting member 1432 can only move in the first direction. In other embodiments, the second limiting groove 1431 can be eliminated, and one end of the first connecting member 1432 can be directly fixed at a certain angle to the second clamping mechanism 13. This can also achieve movement of the first connecting member 1432 in the first direction. This is not specifically limited here.
[0066] Furthermore, in order to further optimize the locking mechanism 14 and ensure that there is a gap between the connecting component 143 and the first clamping mechanism 12 so that there is no interference, the clamping member 141 includes a clamping shaft 1411 and a third connecting member 1412, and one end of the third connecting member 1412 is coaxially arranged with the second connecting member 1433 and is slidably arranged in the first limiting groove 144, and the other end is connected to the clamping shaft 1411, and the clamping shaft 1411 is slidably arranged in the first limiting groove 144, so that the clamping member 141 is elongated in the first direction, avoiding interference between the transmission component 143 and the first clamping mechanism 12, so that the transmission effect of the transmission component 143 is better; and the second elastic member 142 is elastically connected to one end of the third connecting member 1412, applying a certain pulling force to the third connecting member 1412. Such an arrangement can also shorten the length of the second elastic member 142 and reduce costs.
[0067] In this embodiment, if Figure 2 As shown, the first clamping mechanism 12 includes a first adjusting rod 122, a first pressure plate 123 and a distance adjustment knob 124. The first adjusting rod 122 is passed through the bracket 11. The first adjusting rod 122 is provided with a card slot. The locking mechanism 14 can be clamped in the card slot, that is, the clamping member 141 is clamped in the card slot to achieve the locking of the first clamping mechanism 12 by the locking mechanism 14; the first pressure plate 123 is fixedly connected to one end of the first adjusting rod 122 facing the second clamping mechanism 13, so that the first pressure plate 123 can clamp the conductor terminal with the second clamping mechanism 13; and the distance adjustment knob 124 is movably connected to the first adjusting rod 122 along the first direction, and is provided between the first pressure plate 123 and the bracket 11. The distance adjusting knob 124 is connected to the first elastic member 121, and the distance between the first pressure plate 123 and the second clamping mechanism 13 can be adjusted along the first direction by adjusting the distance adjusting knob 124, so that the conductor fastening device 10 can be connected to the conductor terminals on power equipment of different specifications, and by adjusting the distance between the first pressure plate 123 and the bracket 11, the first elastic member 121 can be in a preset compression state before the conductor fastening device 10 is installed with the conductor terminal. After installation, the first elastic member 121 can continuously apply force to the conductor terminal through the first pressure plate 123, thereby realizing a fastened connection between the conductor fastening device 10 and the conductor terminal.
[0068] Preferably, the position of the slot is determined by the operator through multiple experiments. When the slot is engaged with the locking mechanism 14, the first elastic member 121 is in a preset compressed state, achieving the optimal fastening state between the conductor fastening device 10 and the conductor terminal. Further preferably, the first adjustment rod 122 is provided with a first marking line 3131. The second marking line 1223 is the optimal fastening line determined by the operator through continuous experimentation. The operator continuously compresses the first elastic member 121 until the bracket 11 covers or exceeds the first marking line 3131, indicating the optimal fastening state between the conductor fastening device 10 and the conductor terminal. In this embodiment, the position of the first marking line 3131 is the same as the position of the slot, and either one is optional and is not specifically limited here.
[0069] Optionally, the distance adjusting knob 124 is provided with an internal thread, the first adjusting rod 122 is provided with an external thread, and the distance adjusting knob 124 is threadedly connected to the first adjusting rod 122. By rotating the distance adjusting knob 124, the distance between the first pressure plate 123 and the second clamping mechanism 13 can be adjusted.
[0070] Specifically, the first adjusting rod 122 includes a limiting portion 311 and a main body 1222. The limiting portion 311 is arranged at the top of the main body 1222 to limit the first adjusting rod 122, thereby preventing the first adjusting rod 122 from directly passing through the bracket 11 and causing the first clamping mechanism 12 to fall.
[0071] In this embodiment, if Figure 2 As shown, the second clamping mechanism 13 further includes a second adjustment rod 131, a second pressure plate 132, and a connector 133. The second adjustment rod 131 is movably disposed through the bracket 11. The second pressure plate 132 is fixedly connected to the end of the second adjustment rod 131 facing the first clamping mechanism 12. The second pressure plate 132 can clamp the conductor terminal together with the first pressure plate 123. The connector 133 is fixedly connected to the end of the second adjustment rod 131 facing away from the first clamping mechanism 12. The connector 133 can be fixedly connected to the grounding rod. By fastening the grounding rod to the connector 133, an operator can use the grounding rod to move the second pressure plate 132 toward the first pressure plate 123, so that the conductor terminal is securely disposed between the first pressure plate 123 and the second pressure plate 132, thereby achieving a secure connection between the conductor fastening device 10 and the conductor terminal.
[0072] Optionally, the second adjustment rod 131 is provided with an external thread, and the bracket 11 is provided with a threaded hole. The second adjustment rod 131 is threadedly connected to the threaded hole, thereby achieving a movable connection between the second pressure plate 132 and the bracket 11. Specifically, by rotating the second adjustment rod 131, the second pressure plate 132 can be moved relative to the bracket in a first direction. Optionally, the second pressure plate 132 is provided with a connecting protrusion on the side facing the first connecting member 1432. The connecting protrusion is hingedly connected to the first connecting member 1432, allowing the first connecting member 1432 to move in the second direction with the movement of the second pressure plate 132. Optionally, the connector 133 is provided with a connecting hole on the side facing away from the second pressure plate 132 for connecting to a grounding rod. Specifically, the connecting hole is provided with an internal thread, and the grounding rod is provided with an external thread. The connector 133 can be threadedly connected to the grounding rod, thereby securing the second clamping mechanism 13 to the grounding rod.
[0073] In this embodiment, the bracket 11 has an F-shaped structure and includes a vertical portion 111, a first horizontal portion 112, and a second horizontal portion 113. The first horizontal portion 112 is disposed at the top of the vertical portion 111, and the second horizontal portion 113 is disposed near the bottom of the vertical portion 111. The other end of the connecting wire 20 is fixedly connected to the bottom of the vertical portion 111. A second limiting groove 1431 is defined in the vertical portion 111, and a first limiting groove 144 is defined in the first horizontal portion 112. The first adjustment rod 122 is disposed through the first horizontal portion 112, and the second adjustment rod 131 is threadedly connected to the second horizontal portion 113. This structural design saves material and meets all requirements for the bracket 11.
[0074] In this embodiment, if Figure 3 As shown, the grounding fastening device 30 includes a third adjusting rod 31, a third pressing plate 32, a third elastic member 33 and an adjusting assembly 34. The third adjusting rod 31 includes a limiting portion 311 and a connecting portion 312 and an adjusting portion 313 respectively arranged on both sides of the limiting portion 311. The connecting portion 312 is fixedly connected to one end of the connecting wire 20. The third pressing plate 32, the third elastic member 33 and the adjusting assembly 34 are all arranged on the adjusting portion 313. The third pressing plate 32 and the third elastic member 33 are all sleeved on the adjusting portion 313, and the third elastic member 33 is arranged between the third adjusting rod 31 and the third adjusting rod 31. The three pressure plates 32 are arranged between the third pressure plate 32 so that the third pressure plate 32 is elastically connected to the limiting portion 311; the adjustment component 34 is movably arranged on the adjustment portion 313, and the grounding body is placed between the compressed third pressure plate 32 and the adjustment component 34, and the adjustment component 34 is continuously tightened, so that the third elastic member 33 is compressed to a preset compression state (the preset compression state here refers to the compression degree of the third elastic member 33 when the third pressure plate 32 and the adjustment component 34 are able to achieve a fastening connection to the grounding body), thereby realizing a fastening connection between the grounding fastening device 30 and the grounding body.
[0075] Through the above structure, when the grounding fastening device 30 is connected to the grounding body, the adjustment component 34 is first removed from the adjustment part 313, the grounding body is placed on the adjustment part 313, and then the adjustment component 34 is installed on the adjustment part 313. By continuously moving the adjustment component 34 toward the third pressure plate 32, the third elastic member 33 is compressed to a preset compression state, thereby achieving a fastened connection between the grounding fastening device 30 and the grounding body.
[0076] Optionally, the adjustment assembly 34 includes an adjustment nut 341, and the adjustment portion 313 is provided with an external thread. The adjustment nut 341 is threadedly connected to the adjustment portion 313, which allows the distance between the adjustment assembly 34 and the third pressure plate 32 to be adjustable, allowing the grounding body to be installed between the third pressure plate 32 and the adjustment assembly 34. By tightening the adjustment nut 341, the third elastic member 33 is compressed to a preset compression state, thereby achieving a fastened connection between the grounding fastening device 30 and the grounding body. Further optionally, the adjustment assembly 34 also includes a fourth pressure plate 342, which is disposed between the third pressure plate 32 and the adjustment nut 341, so that the grounding body is disposed between the third pressure plate 32 and the fourth pressure plate 342. This increases the area of the connection with the grounding body and achieves a more stable connection to the grounding body.
[0077] When the grounding fastening device 30 is connected to the grounding body, the adjusting nut 341 is first loosened and removed from the adjusting portion 313, and the fourth pressure plate 342 is removed. The grounding body is sleeved on the adjusting portion 313, and the fourth pressure plate 342 and the adjusting nut 341 are installed on the adjusting portion 313 again. At this time, the grounding body is between the third pressure plate 32 and the fourth pressure plate 342. By continuously tightening the adjusting nut 341, the fourth pressure plate 342 moves toward the third pressure plate 32, so that the third pressure plate 32 continuously compresses the third elastic member 33 until the third elastic member 33 is compressed to a preset compression state. At this time, the third elastic member 33 in the compressed state continuously applies force to the third pressure plate 32, so that the grounding body is fastened between the third pressure plate 32 and the fourth pressure plate 342.
[0078] Preferably, in this embodiment, a second marking line 1223 is provided on the above-mentioned adjustment part 313. The second marking line 1223 is the optimal fastening line obtained by the operator through continuous experiments. When the operator tightens the adjustment nut 341, he continuously compresses the third elastic member 33 until the third pressure plate 32 covers or exceeds the second marking line 1223, which is the optimal fastening state of the grounding body and the grounding fastening device 30.
[0079] In this embodiment, the installation process of the temporary grounding wire is as follows:
[0080] Step 1: Fasten the grounding fastening device 30 to the grounding body.
[0081] When the locking nut 341 is unlocked, the locking nut 342 is unlocked and the locking nut 341 is unlocked.
[0082] Step 2: Perform pre-operation preparation on the conductor fastening device 10 .
[0083] The operator adjusts the distance adjustment knob 124 so that the distance adjustment knob 124 rotates along the first adjustment rod 122, and adjusts the distance between the first pressure plate 123 and the second pressure plate 132 along the first direction to be equal to the thickness of the connection point with the conductor terminal, ensuring that the conductor terminal can be placed between the first pressure plate 123 and the second pressure plate 132.
[0084] Then, by manually compressing the first elastic member 121 and engaging the engaging shaft 1411 in the engaging slot, while the third elastic member 33 remains compressed, the second pressing plate 132 is adjusted to a distance from the first pressing plate 123 that satisfies the thickness of the conductor terminal connection, thereby completing the pre-operation preparations for the conductor fastening device 10. If the operator has less strength, the first connecting member 1432 can be removed, and the second pressing plate 132 can be driven to abut against the first pressing plate 123 via the grounding rod, thereby causing the first pressing plate 123 to move toward the first horizontal portion 112 of the bracket 11 until the engaging shaft 1411 engages with the engaging slot. At this point, the first horizontal portion 112 covers or exceeds the first marking line 3131. The second pressing plate 132 is then adjusted to a suitable position, and the first connecting member 1432 is assembled, thus completing the pre-operation preparations for the conductor fastening device 10.
[0085] Step 3: Tightly connect the conductor fastening device 10 to the conductor terminal of the equipment.
[0086] The operator fixedly connected the connection rod to the connection hole on the connector 133, and then lifted the temporary grounding wire so that the conductor terminal was between the first pressure plate 123 and the second pressure plate 132. By slightly rotating the grounding rod, the second pressure plate 132 moved relative to the bracket 11 along the first direction toward the first pressure plate 123, driving the first connecting member 1432 to move in the first direction toward the second connecting member 1433, thereby pushing the second connecting member 1433 to move toward the third connecting member 1412, and then pushing the third connecting member 1412 to move along the first direction away from the second elastic member 142, so that The locking shaft 1411 is separated from the locking slot. At this time, the first elastic member 121 in the compressed state continues to apply force to the first pressure plate 123, so that the first pressure plate 123 applies a clamping force to the conductor terminal; in order to ensure the tightness of the connection between the first pressure plate 123 and the second pressure plate 132 to the conductor terminal, the terminal rod is rotated slightly again so that the second pressure plate 132 moves toward the first pressure plate 123 to the extreme position, which can meet the tight connection between the conductor fastening device 10 and the conductor terminal of the equipment, and then the discharge of the electrical equipment can be achieved, ensuring the safety of the operating personnel during inspection or maintenance.
[0087] Example 2:
[0088] This embodiment provides a temporary grounding wire. The difference between this embodiment and the first embodiment is that, in this embodiment, the connector 133 can be designed with an external hexagonal structure. This allows operators to adjust the second pressure plate 132 at close range using tools such as a torque wrench or electric wrench, saving effort and providing convenience for operators. Optionally, the connection hole can also be provided with an internal hexagonal hole to facilitate operator adjustment, further facilitating operator operation. Preferably, the internal hexagonal hole and external hexagonal structure can be configured to the dimensions of conventional hexagonal bolts, improving compatibility with the tools used.
[0089] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. Temporary grounding wire, characterized in that, include: A conductor fastening device (10) comprises a bracket (11), a first clamping mechanism (12), a second clamping mechanism (13) and a locking mechanism (14), wherein the first clamping mechanism (12) and the second clamping mechanism (13) are respectively movably arranged in the bracket (11) along a first direction, and the first clamping mechanism (12) and the second clamping mechanism (13) are arranged at intervals along the first direction, a first elastic member (121) is provided between the first clamping mechanism (12) and the bracket (11), one end of the second clamping mechanism (13) can be connected to a grounding rod, and the other end can be connected to a grounding rod. The end of the locking mechanism (14) can clamp the conductor terminal with the first clamping mechanism (12); the locking mechanism (14) is arranged on the bracket (11), and one end of the locking mechanism (14) can lock the first clamping mechanism (12) to a limited position, so that the first elastic member (121) maintains a preset compression state; the other end of the locking mechanism (14) is connected to the second clamping mechanism (13) and can drive the locking mechanism (14) to move under the drive of the second clamping mechanism (13), so that one end of the locking mechanism (14) is separated from the first clamping mechanism (12); A connecting wire (20), one end of which is fixedly connected to the bracket (11); as well as A grounding fastening device (30) is fixedly connected to the other end of the connecting wire (20), and the grounding fastening device (30) is configured to be fastened to a grounding body; The locking mechanism (14) comprises: a clamping member (141) movably disposed on the bracket (11) along a second direction and capable of being engaged with or separated from the first clamping mechanism (12), wherein the second direction is perpendicular to the first direction; A second elastic member (142), one end of which is connected to the bracket (11) and the other end of which is connected to the clamping member (141), wherein the second elastic member (142) can drive the clamping member (141) to engage with the first clamping mechanism (12); and A transmission assembly (143) has one end connected to the second clamping mechanism (13) and the other end connected to the clamping member (141), and the transmission assembly (143) is configured to be able to drive the clamping member (141) to separate from the first clamping mechanism (12).
2. The temporary grounding wire according to claim 1, characterized in that: The locking mechanism (14) further comprises a first limiting groove (144), wherein the first limiting groove (144) is provided on the bracket (11) along the second direction, and the clamping member (141) is slidably disposed in the first limiting groove (144).
3. The temporary grounding wire according to claim 1, characterized in that: The transmission assembly (143) comprises: A second limiting groove (1431) is provided on the bracket (11) along the first direction; A first connecting member (1432) is slidably disposed in the second limiting groove (1431), one end of the first connecting member (1432) is connected to the second clamping mechanism (13) and can move along the first direction with the second clamping mechanism (13); and The second connecting member (1433) has two ends that are rotatably connected to the clamping member (141) and the other end of the first connecting member (1432).
4. The temporary grounding wire according to claim 1, characterized in that: The first clamping mechanism (12) comprises: A first adjusting rod (122) is provided on the bracket (11), and a slot is provided on the first adjusting rod (122), and the locking mechanism (14) can be engaged with the slot; a first pressing plate (123) fixedly connected to one end of the first adjusting rod (122) facing the second clamping mechanism (13), wherein the first pressing plate (123) and the second clamping mechanism (13) can clamp the conductor terminal; and A distance adjustment knob (124) is movably connected to the first adjustment rod (122) along a first direction and is arranged between the first pressure plate (123) and the bracket (11). The distance adjustment knob (124) is connected to the first elastic member (121). The distance adjustment knob (124) is configured to be able to adjust the distance between the first pressure plate (123) and the second clamping mechanism (13) along the first direction.
5. The temporary grounding wire according to claim 4, characterized in that: The distance adjustment knob (124) is provided with an internal thread, the first adjustment rod (122) is provided with an external thread, and the distance adjustment knob (124) is threadedly connected to the first adjustment rod (122).
6. The temporary grounding wire according to claim 1, characterized in that: The second clamping mechanism (13) comprises: A second adjusting rod (131) is movably disposed through the bracket (11); a second pressing plate (132) fixedly connected to one end of the second adjusting rod (131) facing the first clamping mechanism (12), wherein the second pressing plate (132) can clamp the conductor terminal together with the first clamping mechanism (12); and A connector (133) is fixedly connected to an end of the second adjusting rod (131) away from the first clamping mechanism (12), and the connector (133) can be fixedly connected to the grounding rod.
7. The temporary grounding wire according to claim 6, characterized in that: The second adjusting rod (131) is provided with an external thread, the bracket (11) is provided with a threaded hole, and the second adjusting rod (131) is threadedly connected to the threaded hole.
8. The temporary grounding wire according to any one of claims 1 to 7, characterized in that: The grounding fastening device (30) comprises: A third adjusting rod (31) comprises a limiting portion (311) and a connecting portion (312) and an adjusting portion (313) respectively arranged on both sides of the limiting portion (311), wherein the connecting portion (312) is fixedly connected to one end of the connecting wire (20); a third pressing plate (32) movably disposed on the adjusting portion (313); A third elastic member (33) is provided between the third adjusting rod (31) and the third pressing plate (32) and is sleeved on the adjusting portion (313); and An adjusting component (34) is movably disposed on the adjusting portion (313), and the adjusting component (34) can move toward the third pressing plate (32) to compress the third elastic member (33) to a preset compression state.
9. The temporary grounding wire according to claim 8, characterized in that: The adjustment assembly (34) includes an adjustment nut (341), the adjustment portion (313) is provided with an external thread, and the adjustment nut (341) is threadedly connected to the adjustment portion (313).
Citation Information
Patent Citations
Grounding system and grounding wire clamp
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Universal push-pull micro-torsion type grounding wire device
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