A grounding lock

Abstract

The present invention discloses a grounding lock, comprising: a housing having a grounding plug socket; a stop shaft having an insertion end at its lower end and a first slot formed in the horizontal direction; a first compressible elastic member connecting the housing and the upper end of the stop shaft; a lock core capable of rotating synchronously with an unlocking device; a lock tongue having a first groove formed thereon, into which the insertion end of the stop shaft can be inserted to restrict horizontal movement of the lock tongue, with one end of the lock tongue abutting against the grounding plug after the grounding plug is inserted into the grounding plug socket; a second compressible elastic member connecting the housing and the other end of the lock tongue; a locking shaft having one end capable of being inserted into the first slot to restrict vertical movement of the stop shaft; a third compressible elastic member connecting the housing and the other end of the locking shaft; and a driving member connected to the other end of the locking shaft, which abuts against the other side of the grounding plug after the grounding plug is inserted into the grounding plug socket. The present invention eliminates the need to constantly attach the unlocking device to the grounding lock, thus facilitating grounding connection.

Description

Technical Field

[0001] The present invention relates to the field of grounding devices, and in particular to a grounding lock. Background Art

[0002] The grounding wire is a safety tool commonly used by power companies during construction or maintenance operations. Hanging the grounding wire can prevent sudden electrical shock from causing harm to the human body. It is a safety barrier to protect maintenance personnel and the lifeline of power employees.

[0003] In existing grounding device technology, a widely used method is to weld a grounding stake on a grounding flat iron, connect a grounding head to a grounding wire, insert the grounding head into the grounding stake, and cooperate with mechanical unlocking devices such as padlocks and fixed locks to force the hanging and removal of temporary grounding wires. However, in this solution, the hanging and removal status of the grounding wire is determined only by the unlocking device's unlocking operation, which makes it difficult to solve the "empty travel" problem when the grounding wire is hung or removed on the grounding stake. To address the above problem, another technical solution triggers the unlocking device's sensing element by inserting the grounding head, thereby causing the code value or chip ID of the grounding detection component to change. The unlocking device reads the changed value in real time to determine the grounding wire hanging status. However, this solution requires the unlocking device to be hung and inserted into the grounding lock during operation, which affects the convenience of the grounding wire hanging and removal operation. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a grounding lock that does not require the unlocking device to be plugged into the grounding lock when the grounding wire is connected, thereby facilitating the connection of the grounding wire.

[0005] According to an embodiment of the present invention, a grounding lock comprises: a shell, which is provided with a ground wire head jack, and the ground wire head jack is used for inserting the ground wire head; a blocking shaft, which is slidably arranged inside the shell in a vertical direction, the lower end of the blocking shaft is an insertion end, and the blocking shaft is provided with a first slot in a horizontal direction; a first compression elastic member, connecting the shell and the upper end of the blocking shaft; a lock core, which is used for inserting an unlocking device, and the lock core can rotate synchronously with the unlocking device, and the lock core presses against the blocking shaft during the forward rotation process and drives the blocking shaft to slide upward, and the blocking shaft can move downward under the elastic restoring force of the first compression elastic member; a lock tongue, which is slidably arranged inside the shell in a horizontal direction, and the lock A first groove is provided on the tongue, and the insertion end of the blocking shaft can be inserted into the first groove to limit the movement of the lock tongue in the horizontal direction, and one end of the lock tongue presses against the ground wire head after the ground wire head is inserted into the ground wire head socket; a second compression elastic member connects the outer shell and the other end of the lock tongue; a locking shaft is slidingly arranged inside the outer shell along the horizontal direction, and one end of the locking shaft can be inserted into the first slot to limit the movement of the blocking shaft in the vertical direction; a third compression elastic member connects the outer shell and the other end of the locking shaft; a driving member is connected to the other end of the locking shaft, and the driving member presses against the other side of the ground wire head after the ground wire head is inserted into the ground wire head socket.

[0006] At least it has the following beneficial effects: when in use, the unlocking device can be inserted into the lock core, and when the unlocking device is turned forward, the lock core can rotate synchronously, and then the lock core can push against the block shaft and drive the block shaft to slide upward, and when the first slot position on the block shaft corresponds to the locking shaft, the locking shaft can be inserted into the first slot under the elastic restoring force of the third compression elastic member, so that the block shaft cannot move in the vertical direction. At this time, the insertion end of the block shaft has been withdrawn from the first groove of the lock tongue, and the block shaft no longer restricts the movement of the lock tongue in the horizontal direction. At this time, regardless of whether the unlocking device is hung on the lock core, the block shaft will not move downward, so the grounding lock is in an unlocked state. In the unlocked state, the ground wire head can be inserted into the ground wire head jack to achieve grounding. During the insertion process of the ground wire head, the ground wire head will horizontally press against the driving member, thereby causing the driving member to drive the locking shaft to synchronously move horizontally and withdraw from the first slot. Since the locking shaft no longer restricts the movement of the blocking shaft in the vertical direction, the unlocking device can be twisted in the reverse direction at this time. The blocking shaft can be re-inserted into the first groove under the elastic restoring force of the first compression elastic member. At this time, the lock tongue cannot move in the horizontal direction, so the grounding lock is in the locked state. The grounding lock in the embodiment of the present invention does not need to hang the unlocking device on the grounding lock all the time, which can facilitate the hanging of the ground wire.

[0007] According to some embodiments of the present invention, it also includes a limit shaft and a status shaft, the limit shaft is vertically slidably arranged inside the shell, the status shaft is horizontally slidably arranged inside the shell, a fourth compression elastic member is arranged between the shell and the upper end of the limit shaft, and a fifth compression elastic member is arranged between the status shaft and the limit shaft, the limit shaft is provided with a first limit hole and a second limit hole from top to bottom, one end of the status shaft can be inserted into the first limit hole or the second limit hole, the side surface of the upper part of the blocking shaft is provided with an avoidance groove, the other end of the status shaft can abut the side surface of the blocking shaft or the avoidance groove, the locking shaft is provided with a first outer circumferential surface and a second outer circumferential surface, the first outer circumferential surface and the second outer circumferential surface are adjacent to each other and the outer diameter of the first outer circumferential surface is larger than the outer diameter of the second outer circumferential surface, and the lower end of the limit shaft can abut the first outer circumferential surface or the second outer circumferential surface.

[0008] According to some embodiments of the present invention, the locking shaft and the driving member are connected to each other via a connecting plate.

[0009] According to some embodiments of the present invention, the third compression elastic member is sleeved on one end of the locking shaft connected to the connecting plate.

[0010] According to some embodiments of the present invention, a second groove is provided on the lock tongue, the depth of the second groove along the vertical direction is smaller than the depth of the first groove along the vertical direction, the second groove is located on the side of the first groove close to the ground wire head socket, and the second groove is at least partially connected to the first groove so that the insertion end of the blocking shaft can slide from the second groove into the first groove.

[0011] According to some embodiments of the present invention, a second slot is provided on the blocking shaft, the depth of the second slot along the horizontal direction is smaller than the depth of the first slot along the horizontal direction, the second slot is located on the side of the first slot away from the lock tongue, and the second slot is at least partially connected to the first slot so that the end of the locking shaft can slide from the second slot into the first slot.

[0012] According to some embodiments of the present invention, a status trigger shaft and a micro switch are further provided in the housing. When the ground wire head is inserted into the ground wire head jack, the ground wire head abuts the status trigger shaft, and the status trigger shaft abuts the micro switch. A wireless code chip is provided on the lock core, and triggering the micro switch will cause the code value of the wireless code chip to change.

[0013] According to some embodiments of the present invention, a limiting groove is provided on the bottom of the locking tongue along its own axial direction, and a limiting protrusion is provided on the housing, and the limiting protrusion is accommodated in the limiting groove.

[0014] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0017] Figure 2 A schematic side structural diagram of an embodiment of the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the grounding lock according to an embodiment of the present invention when the grounding wire is not inserted and the grounding lock is in a locked state;

[0019] Figure 4 This is a schematic cross-sectional view of the grounding lock according to an embodiment of the present invention when the grounding wire is not inserted and the grounding lock is in an unlocked state;

[0020] Figure 5 This is a schematic cross-sectional view of the grounding lock according to an embodiment of the present invention when the grounding lock is inserted into the ground wire and is in a locked state;

[0021] Figure 6 This is a schematic cross-sectional view of the grounding lock according to an embodiment of the present invention when the grounding wire is pulled out and in an unlocked but not returned state;

[0022] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the ground wire jack in the state.

[0023] Figure Number:

[0024] Housing 100, ground wire jack 110, limiting protrusion 120, mounting accessories 130, grounding stake 140;

[0025] Ground wire head 200, annular groove 210, butterfly nut 220;

[0026] The blocking shaft 300, the first compression elastic member 310, the insertion end 320, the first slot 330, the avoidance groove 340, and the second slot 350;

[0027] Lock cylinder 400, wireless code chip 410, dust cover 420, tail shaft 430;

[0028] Lock tongue 500, second compression elastic member 510, first groove 520, second groove 530, limiting groove 540;

[0029] Locking shaft 600, third compression elastic member 610, driving member 620, connecting plate 630, first outer circumferential surface 640, second outer circumferential surface 650;

[0030] The limiting shaft 700, the fourth compression elastic member 710, the first limiting hole 720, and the second limiting hole 730;

[0031] Status shaft 800, fifth compression elastic member 810;

[0032] Status trigger shaft 900 and micro switch 910. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by front, back, left, right, up, and down, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 7 The present invention discloses a grounding lock, including a housing 100, a blocking shaft 300, a first compression elastic member 310, a lock core 400, a lock tongue 500, a second compression elastic member 510, a locking shaft 600, a third compression elastic member 610 and a driving member 620.

[0038] Among them, the shell 100 is provided with a ground wire head jack 110, which is used for inserting the ground wire head 200, and the blocking shaft 300 is slidably arranged inside the shell 100 along the vertical direction, and the lower end of the blocking shaft 300 is the insertion end 320, and the blocking shaft 300 is provided with a first slot 330 in the horizontal direction, and the first compression elastic member 310 connects the shell 100 and the upper end of the blocking shaft 300, and the lock core 400 is used for inserting the unlocking device, and the lock core 400 can rotate synchronously with the unlocking device. During the forward rotation process, the lock core 400 presses against the blocking shaft 300 and drives the blocking shaft 300 to slide upward, and the blocking shaft 300 can move downward under the elastic restoring force of the first compression elastic member 310, and the lock tongue 500 is slidably arranged inside the shell 100 along the horizontal direction. A groove 520, the insertion end 320 of the blocking shaft 300 can be inserted into the first groove 520 to limit the movement of the locking tongue 500 in the horizontal direction, one end of the locking tongue 500 presses against the ground wire head 200 after the ground wire head 200 is inserted into the ground wire head socket 110, the second compression elastic member 510 connects the shell 100 and the other end of the locking tongue 500, the locking shaft 600 is slidably arranged inside the shell 100 along the horizontal direction, one end of the locking shaft 600 can be inserted into the first slot 330 to limit the movement of the blocking shaft 300 in the vertical direction, the third compression elastic member 610 connects the shell 100 and the other end of the locking shaft 600, the driving member 620 is connected to the other end of the locking shaft 600, and the driving member 620 presses against the other side of the ground wire head 200 after the ground wire head 200 is inserted into the ground wire head socket 110.

[0039] It can be understood that when in use, the unlocking device can be inserted into the lock core 400. When the unlocking device is turned forward, the lock core 400 can rotate synchronously, and then the lock core 400 can push against the blocking shaft 300 and drive the blocking shaft 300 to slide upward. When the position of the first slot 330 on the blocking shaft 300 corresponds to the locking shaft 600, the locking shaft 600 can be inserted into the first slot 330 under the elastic recovery force of the third compression elastic member 610, thereby making the blocking shaft 300 unable to move in the vertical direction. At this time, the insertion end 320 of the blocking shaft 300 has been withdrawn from the first groove 520 of the lock tongue 500, and the blocking shaft 300 no longer restricts the horizontal movement of the lock tongue 500. At this time, regardless of whether the unlocking device is hung on the lock core 400, the blocking shaft 300 will not move downward, so the grounding lock is in an unlocked state. In the unlocked state, the grounding plug 200 can be inserted into the grounding plug jack 110 to achieve grounding. During the insertion process of the grounding plug 200, the grounding plug 200 will horizontally press against the driving member 620, thereby causing the driving member 620 to drive the locking shaft 600 to synchronously move horizontally and withdraw from the first slot 330. Since the locking shaft 600 no longer restricts the movement of the blocking shaft 300 in the vertical direction, the unlocking device can be twisted in the opposite direction at this time. The blocking shaft 300 can be inserted into the first groove 520 again under the elastic restoring force of the first compression elastic member 310. At this time, the lock tongue 500 cannot move in the horizontal direction, so the grounding lock is in the locked state. The grounding lock in the embodiment of the present invention does not need to hang the unlocking device on the grounding lock all the time, which can facilitate the hanging of the grounding wire.

[0040] It should be noted that a tail shaft 430 is provided at the end of the lock core 400. When the unlocking device is rotated, the lock core 400 rotates, driving the tail shaft 430 on the lock core 400 to rotate synchronously. The cross-sectional shape of the tail shaft 430 can be composed of a major arc segment and a straight line segment. After inserting the ground wire connector 200, the other end of the ground wire connector 200 can be locked with a butterfly nut 220. Alternatively, the aforementioned compression elastic member can be a compression spring.

[0041] In addition, it should be noted that if Figure 7 As shown, an annular groove 210 is formed near the end of the ground wire connector 200. When the ground wire connector 200 is inserted into the ground wire connector jack 110, the side surface of the end of the ground wire connector 200 can first abut the end of the lock tongue 500 and then abut the end of the driving member 620. At the same time, the lock tongue 500 moves forward and then extends into and abuts the annular groove 210. It is understandable that the lock tongue 500 and the driving member 620 can be staggered in the left and right directions.

[0042] Reference Figures 3 to 6, the embodiment of the present invention further includes a limit shaft 700 and a state shaft 800, the limit shaft 700 is vertically slidably arranged inside the housing 100, the state shaft 800 is horizontally slidably arranged inside the housing 100, a fourth compression elastic member 710 is arranged between the housing 100 and the upper end of the limit shaft 700, a fifth compression elastic member 810 is arranged between the state shaft 800 and the limit shaft 700, the limit shaft 700 is sequentially provided with a first limit hole 720 and a second limit hole 730 from top to bottom, one end of the state shaft 800 can be inserted into the first limit hole In the positioning hole 720 or the second limiting hole 730, an avoidance groove 340 is provided on the side surface of the upper part of the blocking shaft 300, and the other end of the status shaft 800 can abut the side surface of the blocking shaft 300 or the avoidance groove 340. The locking shaft 600 is provided with a first outer circumferential surface 640 and a second outer circumferential surface 650. The first outer circumferential surface 640 and the second outer circumferential surface 650 are adjacent to each other and the outer diameter of the first outer circumferential surface 640 is greater than the outer diameter of the second outer circumferential surface 650. The lower end of the limiting shaft 700 can abut the first outer circumferential surface 640 or the second outer circumferential surface 650.

[0043] Specifically, if Figure 3 As shown, in the initial state, that is, the grounding lock is not inserted into the grounding head 200 and is in a locked state, one end of the state shaft 800 abuts against the avoidance groove 340 on the side of the blocking shaft 300, and the other end of the state shaft 800 is not inserted into the first limiting hole 720 and the second limiting hole 730. At this time, the limiting shaft 700 abuts against the first outer circumferential surface 640; Figure 4 As shown, when the grounding lock is not inserted into the grounding head 200 and is in the unlocked state, the state shaft 800 is out of the avoidance groove 340 and one end abuts against the side of the blocking shaft 300, and the other end is inserted into the second limiting hole 730 of the limiting shaft 700. At this time, the limiting shaft 700 abuts against the first outer circumferential surface 640; Figure 5 As shown, when the grounding lock is inserted into the grounding head 200 and is in the locked state, one end of the state shaft 800 abuts against the avoidance groove 340 on the side of the blocking shaft 300. At this time, the other end of the state shaft 800 is not inserted into the first limiting hole 720 and the second limiting hole 730. At the same time, the limiting shaft 700 moves downward under the elastic restoring force of the fourth compression elastic member 710 and abuts against the second outer circumferential surface 650; Figure 6 As shown, when the grounding lock is pulled out of the grounding head 200 and is in the unlocked and unreturned state, the state shaft 800 is separated from the avoidance groove 340 and one end abuts against the side of the blocking shaft 300, and the other end is inserted into the first limiting hole 720 of the limiting shaft 700. At this time, the limiting shaft 700 abuts against the second outer circumferential surface 650. It can be understood that Figure 6 The status changes back to Figure 3During the process of the state, the locking shaft 600 can move horizontally under the elastic restoring force of the third compression elastic member 610 and push the limit shaft 700 upward. By setting the limit shaft 700 and the state shaft 800, it can be made Figure 5 Status Figure 6 During the state conversion (ie, the grounding plug 200 is pulled out), the locking shaft 600 will not be directly reset and inserted into the first slot 330 .

[0044] like Figures 3 to 6 As shown, the locking shaft 600 and the driving member 620 are connected to each other via a connecting plate 630. Specifically, the locking shaft 600 and the driving member 620 are located on the same side of the connecting plate 630, so that the locking shaft 600 and the driving member 620 can move synchronously in the same direction. Figures 3 to 6 As shown, the third compression elastic member 610 can be sleeved on one end of the locking shaft 600 connected to the connecting plate 630 , and one end of the third compression elastic member 610 abuts against the housing 100 , and the other end abuts against the locking shaft 600 .

[0045] Reference Figures 3 to 6 The lock tongue 500 is provided with a second groove 530. The depth of the second groove 530 in the vertical direction is less than the depth of the first groove 520 in the vertical direction. The second groove 530 is located on the side of the first groove 520 close to the ground wire plug hole 110. The second groove 530 is at least partially connected to the first groove 520 so that the insertion end 320 of the blocking shaft 300 can slide from the second groove 530 into the first groove 520. Figure 4 Status Figure 5 During the state conversion (ie, inserting the ground lead 200 ), the insertion end 320 of the blocking shaft 300 may first abut against the second groove 530 , and then slide into the first groove 520 and abut against the first groove 520 .

[0046] Reference Figures 3 to 6 The blocking shaft 300 is provided with a second slot 350. The depth of the second slot 350 in the horizontal direction is less than the depth of the first slot 330 in the horizontal direction. The second slot 350 is located on the side of the first slot 330 away from the lock tongue 500. The second slot 350 is at least partially connected to the first slot 330 so that the end of the locking shaft 600 can slide into the first slot 330 through the second slot 350. Figure 3 Status Figure 4 During the state conversion process, the end of the locking shaft 600 may first abut against the second slot 350 , and then slide into the first slot 330 and abut against the first slot 330 .

[0047] like Figure 7As shown, the housing 100 is also provided with a status trigger shaft 900 and a micro switch 910. When the ground wire connector 200 is inserted into the ground wire connector jack 110, the ground wire connector 200 presses against the status trigger shaft 900, which in turn presses against the micro switch 910. A wireless code chip 410 is provided on the lock cylinder 400, and triggering the micro switch 910 causes the code value of the wireless code chip 410 to change. Specifically, when the ground wire connector 200 is inserted into the ground wire connector jack 110, the ground wire connector 200 presses against the status trigger shaft 900. As the status trigger shaft 900 is pressed downward by the ground wire connector 200, it triggers the micro switch 910, causing the code value to change. The unlocking device then reads the changed code value to determine that the ground wire is properly connected. During the unlocking process, the unlocking device can be inserted into the lock cylinder 400 to read the code value. If the code value is correct, the unlocking device can be rotated.

[0048] Reference Figures 3 to 6 The bottom of the lock tongue 500 is provided with a limiting groove 540 along its own axial direction, and the housing 100 is provided with a limiting protrusion 120, which is accommodated in the limiting groove 540. The limiting protrusion 120 can limit the horizontal movement range of the lock tongue 500.

[0049] It should be noted that, in the prior art, when modifying the existing grounding piles 140, it is necessary to cut the old piles and weld new piles, which is difficult to implement and has a large workload. Figure 1 As shown, the housing 100 in the embodiment of the present invention is provided with a mounting accessory 130 , and the grounding lock as a whole can be installed on an existing grounding pile 140 through the mounting accessory 130 , which is convenient for installation and modification.

[0050] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A grounding lock, characterized in that: include: The housing is provided with a ground wire jack, wherein the ground wire jack is used for inserting a ground wire; A stop shaft is slidably disposed inside the housing in a vertical direction, wherein the lower end of the stop shaft is an insertion end and a first slot is formed in the horizontal direction of the stop shaft; a first compression elastic member connecting the housing and the upper end of the stop shaft; a lock core for inserting an unlocking device, the lock core being capable of rotating synchronously with the unlocking device, the lock core abutting against the blocking shaft during forward rotation and driving the blocking shaft to slide upward, and the blocking shaft being capable of moving downward under the elastic restoring force of the first compressible elastic member; a lock tongue, which is slidably arranged inside the shell in a horizontal direction; a first groove is provided on the lock tongue; the insertion end of the blocking shaft can be inserted into the first groove to limit the movement of the lock tongue in the horizontal direction; one end of the lock tongue abuts against the ground wire head after the ground wire head is inserted into the ground wire head insertion hole; a second groove is provided on the lock tongue; the depth of the second groove in the vertical direction is smaller than the depth of the first groove in the vertical direction; the second groove is located on a side of the first groove close to the ground wire head insertion hole; the second groove is at least partially connected to the first groove so that the insertion end of the blocking shaft can slide from the second groove into the first groove; a second compression elastic member connecting the housing and the other end of the locking tongue; a locking shaft, slidably disposed in the interior of the housing along a horizontal direction, one end of the locking shaft being insertable into the first slot to restrict the movement of the blocking shaft along a vertical direction; a third compression elastic member connecting the housing and the other end of the locking shaft; A driving member connected to the other end of the locking shaft, wherein the driving member abuts against the other side of the ground wire head after the ground wire head is inserted into the ground wire head insertion hole; The limit shaft and the status shaft are arranged vertically and slideably inside the shell, and the status shaft is arranged horizontally and slideably inside the shell. A fourth compression elastic part is arranged between the shell and the upper end of the limit shaft, and a fifth compression elastic part is arranged between the status shaft and the limit shaft. The limit shaft is provided with a first limit hole and a second limit hole from top to bottom, and one end of the status shaft can be inserted into the first limit hole or the second limit hole. An avoidance groove is provided on the side surface of the upper part of the stop shaft, and the other end of the status shaft can abut the side surface of the stop shaft or the avoidance groove. The locking shaft is provided with a first outer circumferential surface and a second outer circumferential surface. The first outer circumferential surface and the second outer circumferential surface are adjacent to each other and the outer diameter of the first outer circumferential surface is larger than the outer diameter of the second outer circumferential surface. The lower end of the limit shaft can abut the first outer circumferential surface or the second outer circumferential surface.

2. A grounding lock according to claim 1, characterized in that: The locking shaft and the driving member are connected to each other via a connecting plate.

3. The grounding lock according to claim 2, characterized in that: The third compression elastic member is sleeved on one end of the locking shaft connected to the connecting plate.

4. The grounding lock according to claim 1, characterized in that: A second slot is provided on the blocking shaft, the depth of the second slot in the horizontal direction is smaller than the depth of the first slot in the horizontal direction, the second slot is located on the side of the first slot away from the lock tongue, and the second slot is at least partially connected to the first slot so that the end of the locking shaft can slide from the second slot into the first slot.

5. The grounding lock according to any one of claims 1 to 4, characterized in that: A status trigger shaft and a micro switch are also provided in the shell. When the ground wire head is inserted into the ground wire head jack, the ground wire head abuts the status trigger shaft, and the status trigger shaft abuts the micro switch. A wireless code chip is provided on the lock core, and triggering the micro switch will cause the code value of the wireless code chip to change.

6. A grounding lock according to any one of claims 1 to 4, characterized in that: The bottom of the lock tongue is provided with a limiting groove along its own axial direction, and the housing is provided with a limiting protrusion, which is accommodated in the limiting groove.

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