Ground wire head component

Abstract

The present invention relates to the field of electrical equipment and discloses a ground wire head assembly. The ground wire head assembly is used for detachably connecting with a ground wire pile. The ground wire head assembly includes: a ground wire head, which includes a seat body, a seat body rod and a limiting mechanism. The seat body rod is located at one end of the seat body. The seat body rod can pass through the connection hole of the ground wire pile. The limiting mechanism is movably connected with the seat body rod. The ground wire head includes an unlocking state and a locking state. In the unlocking state, the limiting mechanism is hidden in the seat body rod, so that the seat body rod can reciprocate in the connection hole of the ground wire pile. In the locking state, the limiting mechanism protrudes from the outer periphery of the seat body rod, so that the seat body rod is limited in the connection hole of the ground wire pile. The control device includes a housing and a mechanical lock core. The housing is arranged on the seat body. At least part of the mechanical lock core is located in the housing. The mechanical lock core is connected with the limiting mechanism. The mechanical lock core drives the limiting mechanism to move, so that the ground wire head switches between the unlocking state and the locking state, facilitating the unlocking and locking of the ground wire head in a mechanical manner.

Description

Technical Field

[0001] The present invention relates to the field of electrical equipment, and particularly to a ground wire head assembly. Background Art

[0002] The ground wire is a frequently used safety tool in electrical work. When the power line of an electrical equipment is out of service for maintenance or inspection, in order to prevent sudden power-on, induced electricity and attack of residual charge, grounding wires must be installed as required on each side where power-on may occur, on electrical equipment that may generate induced electricity and store charge, so as to ensure safe short-circuiting when sudden power-on occurs, introduce the current into the ground, and thus protect the lives of operating personnel on the equipment.

[0003] Currently, the locking of most ground wire products is generally achieved through a padlock. The padlock is an independent product, which generally has its own identity information and is used simultaneously with the ground wire head product, making it inconvenient for management and the operation is cumbersome. Summary of the Invention

[0004] An embodiment of the present invention provides a ground wire head assembly, which facilitates unlocking and locking of the ground wire head in a mechanical manner.

[0005] An embodiment of the present invention provides a ground wire head assembly for detachably connecting with a ground wire pile, including: a ground wire head, which includes a seat body, a seat body rod and a limiting mechanism. The seat body rod is located at one end of the seat body, and the seat body rod can pass through the connection hole of the ground wire pile. The limiting mechanism is movably connected with the seat body rod. The ground wire head includes an unlocked state and a locked state. In the unlocked state, the limiting mechanism is hidden in the seat body rod, so that the seat body rod can reciprocate in the connection hole of the ground wire pile. In the locked state, the limiting mechanism protrudes from the outer periphery of the seat body rod, so that the seat body rod is limited in the connection hole of the ground wire pile; and a control device, which includes a housing and a mechanical lock core. The housing is arranged on the seat body, and at least part of the mechanical lock core is located in the housing. The mechanical lock core is connected with the limiting mechanism, and the mechanical lock core drives the limiting mechanism to move, so that the ground wire head switches between the unlocked state and the locked state.

[0006] According to the foregoing embodiment of the present invention, the control device further includes: a transmission mechanism, which includes: a fixed seat, fixedly installed in the housing. The fixed seat includes a sliding groove, and the direction of the sliding groove is parallel to the extending direction of the seat body rod; and a sliding member, slidably arranged in the sliding groove. The sliding member is respectively connected with the mechanical lock core and the limiting mechanism, so that the mechanical lock core drives the limiting mechanism to move through the sliding member.

[0007] According to any of the foregoing embodiments of the present invention, the transmission mechanism further includes: a lock core rotating shaft connected to the mechanical lock core, the mechanical lock core being capable of driving the lock core rotating shaft to rotate, the lock core rotating shaft having a protrusion portion disposed eccentrically, the sliding member including a groove, the groove including a first side wall and a second side wall opposite to each other in the direction of the sliding groove, the protrusion portion extending into the groove, and when the mechanical lock core rotates, the protrusion portion can abut against the first side wall and / or the second side wall to drive the sliding member to reciprocate along the sliding groove.

[0008] According to any of the foregoing embodiments of the present invention, the first side wall is parallel to the second side wall, and in the direction of the sliding groove, the distance between the first side wall and the second side wall is greater than the size of the protrusion portion.

[0009] According to any of the foregoing embodiments of the present invention, the housing includes a cylinder extending from the housing surface into the housing, and the mechanical lock core is installed in the cylinder.

[0010] According to any of the foregoing embodiments of the present invention, the fixed seat includes a first through hole and a second through hole, the first through hole communicating between the sliding groove and the second through hole, the size of the second through hole being greater than the size of the first through hole, at least a part of the outer peripheral surface of the lock core rotating shaft having an outwardly extending extension portion located in the first through hole, the cylinder including an inwardly extending end extending into the housing, the inwardly extending end extending into the second through hole and limiting the extension portion in the first through hole.

[0011] According to any of the foregoing embodiments of the present invention, the mechanical lock core has an operation surface for receiving control operations, the operation surface being exposed on the outer surface of the housing, and the control device further includes: a dust cover movably connected to the housing, the dust cover being capable of covering the operation surface.

[0012] According to any of the foregoing embodiments of the present invention, the side wall of the housing facing the seat body rod has a connection hole, and the transmission mechanism further includes: a transmission rod passing through the connection hole, the transmission rod connecting the sliding member and the limiting mechanism; and a transmission rod seal disposed in the connection hole, the transmission rod seal making the transmission rod and the connection hole sealed.

[0013] According to any of the foregoing embodiments of the present invention, the housing includes: an upper cover, the mechanical lock core being installed on the upper cover; a lower cover connected to the upper cover; and a housing seal sandwiched between the upper cover and the lower cover, the housing seal making the upper cover and the lower cover sealed.

[0014] According to any of the foregoing embodiments of the present invention, the seat body rod includes a channel and at least one limiting hole. The limiting hole communicates the channel with the outer periphery of the seat body rod. The limiting mechanism includes: at least one limiting member movably disposed in the limiting hole; and a limiting pin reciprocally movably disposed in the channel. The limiting pin includes at least one recess that can accommodate at least a part of the limiting member. In the unlocked state, at least a part of the limiting member is received in the recess, so that the limiting mechanism is received within the outer peripheral surface of the seat body rod. In the locked state, the limiting member avoids the recess and abuts against the outer peripheral surface of the limiting pin, so that the limiting mechanism protrudes from the outer periphery of the seat body rod.

[0015] In an embodiment of the present invention, a ground wire head assembly is provided. The ground wire head assembly is used for detachably connecting with a ground wire pile. The ground wire head assembly includes a ground wire head and a control device. The ground wire head includes a seat body, a seat body rod, and a limiting mechanism. The seat body rod is located at one end of the seat body. The seat body rod can pass through a connection hole of the ground wire pile. The limiting mechanism is movably connected to the seat body rod. The ground wire head includes an unlocked state and a locked state. The control device includes a housing and a mechanical lock core. The housing is disposed on the seat body. At least a part of the mechanical lock core is located inside the housing. The mechanical lock core is connected to the limiting mechanism. The mechanical lock core drives the limiting mechanism to move, so that the ground wire head switches between the unlocked state and the locked state. By disposing the unlocking and locking device on one side of the ground wire head, and the ground wire head is generally placed in an indoor tool management cabinet, it can be better protected. The ground wire pile used in cooperation can be purely mechanical, not easily damaged, and the management cost of the ground wire head can be reduced. The mechanical lock core can control the ground wire head to switch between the unlocked and locked states, and mechanical control can effectively avoid the influence of irresistible factors and timely switch the state of the ground wire head assembly. The setting of the housing can protect the mechanical lock core.

[0016] In some embodiments, the transmission mechanism further includes a lock core rotating shaft connected to the mechanical lock core. The mechanical lock core can drive the lock core rotating shaft to rotate. The lock core rotating shaft has a protrusion eccentrically arranged. The sliding member includes a groove. The groove includes a first side wall and a second side wall opposite to each other in the direction of the sliding groove. The protrusion extends into the groove. When the mechanical lock core rotates, the protrusion can abut against the first side wall and / or the second side wall to drive the sliding member to reciprocate along the sliding groove. When the lock core rotating shaft rotates, the protrusion extends into the groove. The protrusion can abut against one of the first side wall and the second side wall, or can abut against both the first side wall and the second side wall. There is no limitation here. The protrusion of the lock core rotating shaft abuts against the first side wall or / and the second side wall. The rotation of the lock core rotating shaft drives the sliding member to reciprocate, converting the circular motion into a reciprocating motion, providing a prerequisite for the reciprocating motion of the limiting mechanism.

[0017] In some embodiments, the housing includes a cylinder extending from the housing surface into the housing interior. The mechanical lock core is installed within the cylinder, and the chamber of the cylinder accommodates at least part of the mechanical lock core, which can protect the mechanical lock core and prevent dust, chips, hard sand grains, etc. from entering the mechanical lock core and having an adverse effect on the performance of the mechanical lock core.

[0018] In some embodiments, the fixed seat includes a first through hole and a second through hole. The first through hole communicates between the sliding groove and the second through hole, and the size of the second through hole is larger than that of the first through hole. At least a part of the outer peripheral surface of the lock core rotating shaft has an extension portion extending radially outward. The extension portion is located in the first through hole. The cylinder includes an inward extension end extending into the housing interior. The inward extension end extends into the second through hole and limits the extension portion within the first through hole. The arrangement of the first through hole and the second through hole limits the extension portion within the first through hole. A convex portion is provided at the bottom of the extension portion, which limits the extension portion and at the same time limits the convex portion, and limits the position of the convex portion within the groove, making the rotation position more accurate.

[0019] In some embodiments, the mechanical lock core has an operation surface for receiving control operations. The operation surface is exposed on the outer surface of the housing. The control device further includes a dust-proof cover. The dust-proof cover is movably connected to the housing and can cover the operation surface. The operation surface is used for the staff to operate the mechanical lock core. The control device further includes a dust-proof cover. The dust-proof cover is movably connected to the housing and can cover the operation surface. The design of the dust-proof cover can prevent dust and the like from entering the operation surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic cross-sectional view of an embodiment of the ground wire head assembly of the present invention in a locked state;

[0022] Figure 2 It is a schematic cross-sectional view of an embodiment of the ground wire head assembly of the present invention in an unlocked state;

[0023] Figure 3 It is a schematic exploded perspective view of the control device in an embodiment of the ground wire head assembly of the present invention;

[0024] Figure 4 For Figure 1 an enlarged schematic view of area A in

[0025] Figure 5This is a three-dimensional exploded view of a partial structure in an embodiment of the ground wire head assembly of the present invention.

[0026] Explanation of the reference numerals in the attached drawings:

[0027] 1000 - Ground wire head assembly;

[0028] 110 - Ground wire head; 111 - Base body; 112 - Base body rod; 1121 - Channel; 1122 - Limit hole; 113 - Limiting mechanism; 1131 - Limiting member; 1132 - Limit pin; AR - Recessed portion;

[0029] 120 - Control device; 121 - Mechanical lock core; 1211 - Operating surface; 122 - Housing; 1221 - Cylinder body; 1221a - Inward extension end; 1222 - Upper cover; 1223 - Lower cover; 1224 - Housing seal; 123 - Transmission mechanism; 1231 - Fixed seat; 1231a - First through hole; 1231b - Second through hole; 1232 - Sliding member; 1232a - Groove; C1 - First side wall; C2 - Second side wall; 1233 - Lock core rotating shaft; 1234 - Transmission rod; 1235 - Transmission rod seal; 124 - Dust cover; WY - Extension portion; TQ - Protrusion; X - Direction of the chute.

[0030] The realization of the object, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Figure 1 This is a schematic cross-sectional view of an embodiment of the ground wire head group of the present invention in a locked state. Figure 2 This is a schematic cross-sectional view of an embodiment of the ground wire head assembly of the present invention in an unlocked state. In the embodiments of the present invention, a ground wire head assembly 1000 is provided. The ground wire head assembly 1000 is used for detachably connecting with a ground wire pile. The ground wire head assembly 1000 includes a ground wire head 110 and a control device 120. The ground wire head 110 includes a seat body 111, a seat body rod 112 and a limiting mechanism 113. The seat body rod 112 is located at one end of the seat body 111. The seat body rod 112 can pass through the connection hole of the ground wire pile. The limiting mechanism 113 is movably connected with the seat body rod 112. The ground wire head 110 includes an unlocked state and a locked state. In the unlocked state, as Figure 2 shown, the limiting mechanism 113 is hidden in the seat body rod 112, so that the seat body rod 112 can reciprocate in the connection hole of the ground wire pile. In the locked state, as Figure 1 shown, the limiting mechanism 113 protrudes from the outer periphery of the seat body rod 112, so that the seat body rod 112 is limited in the connection hole of the ground wire pile. The control device 120 includes a housing 122 and a mechanical lock core 121. The housing 122 is arranged on the seat body 111. The mechanical lock core 121 is at least partially located in the housing 122. The mechanical lock core 121 is connected with the limiting mechanism 113. The mechanical lock core 121 drives the limiting mechanism 113 to move, so that the ground wire head 110 is switched between the unlocked state and the locked state.

[0035] The seat body rod 112 is used for connecting with the ground wire pile, so that the ground wire head assembly 1000 is grounded. The unlocking and locking device is arranged on one side of the ground wire head 110. The ground wire head 110 is generally placed in an indoor tool management cabinet, and can be better protected. The ground wire pile used in cooperation can be purely mechanical, is not easily damaged, and can reduce the management cost of the ground wire head 110. The control device 120 is arranged on the seat body 111. The control device 120 includes a housing 122 and a mechanical lock core 121. The mechanical lock core 121 can control the ground wire head 110 to switch between the unlocked and locked states. And mechanical control can effectively avoid the influence of irresistible factors and timely switch the state of the ground wire head assembly 1000. The setting of the housing 122 can protect the mechanical lock core 121.

[0036] Figure 3 This is a three-dimensional exploded view of the control device in an embodiment of the ground wire head component of the present invention. In some embodiments, the control device 120 further includes a transmission mechanism 123. The transmission mechanism 123 includes a fixed seat 1231 and a sliding member 1232. The fixed seat 1231 is installed in the housing 122. The fixed seat 1231 includes a sliding groove, and the direction X of the sliding groove is parallel to the extending direction of the seat body rod 112. The sliding member 1232 is slidably disposed in the sliding groove, and the sliding member 1232 is respectively connected to the mechanical lock core 121 and the limiting mechanism 113, so that the mechanical lock core 121 drives the limiting mechanism 113 to move through the sliding member 1232. The fixed seat 1231 provides a sliding groove for the sliding member 1232, so that the sliding member 1232 can slide in a direction parallel to the extending direction of the seat body rod 112. Secondly, the fixed seat 1231 can provide a protective shell for the sliding member 1232. The sliding member 1232 is located between the mechanical lock core 121 and the limiting mechanism 113. When the mechanical lock core 121 works, the sliding member 1232 also works.

[0037] Figure 4 For Figure 1 the enlarged schematic view of area A in Figure 5 This is a three-dimensional exploded view of part of the structure in an embodiment of the ground wire head component of the present invention. In some embodiments, the transmission mechanism 123 further includes a lock core rotating shaft 1233. The lock core rotating shaft 1233 is connected to the mechanical lock core 121. The mechanical lock core 121 can drive the lock core rotating shaft 1233 to rotate. The lock core rotating shaft 1233 has a protruding portion TQ that is eccentrically arranged. The sliding member 1232 includes a groove 1232a. The groove 1232a includes a first side wall C1 and a second side wall C2 that are opposite to each other in the direction X of the sliding groove. The protruding portion TQ extends into the groove 1232a. When the mechanical lock core 121 rotates, the protruding portion TQ can abut against the first side wall C1 and / or the second side wall C2 to drive the sliding member 1232 to reciprocate along the sliding groove. When the lock core rotating shaft 1233 rotates, the protruding portion TQ extends into the groove 1232a. The protruding portion TQ can abut against one of the first side wall C1 and the second side wall C2, or can abut against both the first side wall C1 and the second side wall C2. There is no limitation here. The protruding portion TQ of the lock core rotating shaft 1233 abuts against the first side wall C1 or / and the second side wall C2. The rotation of the lock core rotating shaft 1233 drives the sliding member 1232 to reciprocate, converting the circular motion into a reciprocating motion, providing a prerequisite for the reciprocating motion of the limiting mechanism 113.

[0038] In some embodiments, the first sidewall C1 is parallel to the second sidewall C2. Along the direction X of the sliding groove, the distance between the first sidewall C1 and the second sidewall C2 is greater than the size of the protruding portion TQ. The distance between the first sidewall C1 and the second sidewall C2 being greater than the size of the protruding portion TQ facilitates the protruding portion TQ to extend into the groove 1232a, so that the protruding portion TQ of the lock core rotating shaft 1233 can abut against the first sidewall C1 or / and the second sidewall C2.

[0039] In some embodiments, the housing 122 includes a cylinder 1221 extending from the surface of the housing 122 into the housing 122. The mechanical lock core 121 is installed in the cylinder 1221. The chamber of the cylinder 1221 accommodates at least a part of the mechanical lock core 121, which can protect the mechanical lock core 121 and prevent dust and the like from entering the mechanical lock core 121 and having an adverse effect on the performance of the mechanical lock core 121.

[0040] As Figure 5 shown, in some embodiments, the fixed seat 1231 includes a first through hole 1231a and a second through hole 1231b. The first through hole 1231a communicates between the sliding groove and the second through hole 1231b. The size of the second through hole 1231b is greater than the size of the first through hole 1231a. At least a part of the outer peripheral surface of the lock core rotating shaft 1233 has an outwardly extending extension portion WY. The extension portion WY is located in the first through hole 1231a. The housing 122 includes an inwardly extending end 1221a extending into the housing 122. The inwardly extending end 1221a extends into the second through hole 1231b and limits the extension portion WY in the first through hole 1231a. The arrangement of the first through hole 1231a and the second through hole 1231b limits the extension portion WY in the first through hole 1231a. A protruding portion TQ is provided at the bottom of the extension portion WY. The first through hole 1231a limits the extension portion WY and at the same time limits the protruding portion TQ. Limiting the position of the protruding portion TQ in the groove 1232a makes the rotation position more accurate.

[0041] In some embodiments, the mechanical lock core 121 has an operation surface 1211 for receiving control operations. The operation surface 1211 is exposed on the outer surface of the housing 122. The control device 120 further includes a dust cover 124. The dust cover 124 is movably connected to the housing 122, and the dust cover 124 can cover the operation surface 1211. The operation surface 1211 is used for staff to operate the mechanical lock core 121. The control device 120 further includes a dust cover 124. The dust cover 124 is movably connected to the housing 122, and the dust cover 124 can cover the operation surface 1211. The design of the dust cover 124 can prevent dust and the like from entering the operation surface 1211.

[0042] In some embodiments, the side wall of the housing 122 facing the seat rod 112 has a connection hole, and the transmission mechanism 123 also includes a transmission rod 1234 and a transmission rod seal 1235. The transmission rod 1234 is inserted into the connection hole, and the transmission rod 1234 connects the sliding member 1232 with the limiting mechanism 113. The transmission rod seal 1235 is arranged in the connection hole, and the transmission rod seal 1235 seals the transmission rod 1234 with the connection hole. The connection hole enables the housing 122 to be connected to the limiting mechanism 113, and the transmission rod 1234 is connected between the limiting mechanism 113 and the sliding block, which can extend the force range of the mechanical lock core 121 and increase the application range of the ground wire head assembly 1000. The transmission rod seal 1235 can prevent fluid or solid particles from leaking into the sliding member 1232 and prevent external impurities such as dust and moisture from invading the interior of the control device 120. The material of the transmission rod seal 1235 can be rubber, silicone, etc.

[0043] In some embodiments, the housing 122 further includes an upper cover 1222, a lower cover 1223, and a housing seal 1224. The mechanical lock core 121 is mounted on the upper cover 1222, and the lower cover 1223 is connected to the upper cover 1222. The housing seal 1224 is sandwiched between the upper cover 1222 and the lower cover 1223, and the housing seal 1224 makes the upper cover 1222 and the lower cover 1223 sealed.

[0044] In some embodiments, the seat rod 112 includes a channel 1121 and at least one limiting hole 1122, and the limiting hole 1122 connects the channel 1121 with the outer periphery of the seat rod 112. The limiting mechanism 113 includes a limiting member 1131 and a limiting pin 1132. There is at least one limiting member 1131, and the limiting member 1131 is movably disposed in the limiting hole 1122. The limiting pin 1132 is reciprocatably disposed in the channel 1121, and the limiting pin 1132 includes at least one recessed portion AR, and the recessed portion AR can accommodate at least part of the limiting member 1131. In the unlocked state, at least part of the limiting member 1131 is accommodated in the recessed portion AR, so that the limiting mechanism 113 is stored within the outer periphery of the seat rod 112. In the locked state, the limiting member 1131 avoids the recessed portion AR and abuts against the outer periphery of the limiting pin 1132, so that the limiting mechanism 113 protrudes from the outer periphery of the seat rod 112. The number of the limiting members 1131 can be one or more. When the limiting members 1131 are arranged relative to the side walls of the channel 1121 and there are two of them, it can not only ensure the excellent function of unlocking, but also realize the rational use of resources. The setting of the recessed portion AR provides space for the movement of the limiting member 1131, so as to better realize the two states. The recessed portion AR can be arranged along the entire circumference of the limiting rod, or can be arranged along part of the circumference. Different arrangements can realize the switching between the unlocking and locking states.

[0045] In some embodiments, the limiting mechanism 113 further includes a limiting sleeve and a retaining piece. The limiting sleeve confines the limiting member 1131 within the limiting hole 1122 to prevent it from falling out and getting lost. The retaining piece confines the limiting pin 1132 within the seat body rod 112. In some embodiments, the limiting member 1131 is a sphere, and the recessed portion AR has a curved surface matching at least part of the surface of the limiting member 1131. When the limiting member 1131 is a sphere, it moves more flexibly in the limiting hole 1122, and the switching of the limiting pin 1132 is also more labor-saving and rapid. Optionally, the limiting member 1131 can be a steel ball, which has good hardness and excellent flexibility, making the switching between the locked state and the unlocked state more rapid.

[0046] The above are only the preferred embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A ground wire head component, for detachably connecting with a ground wire pile, characterized in that Comprising: A ground wire head, including a base body, a base body rod, and a limiting mechanism. The base body rod is located at one end of the base body. The base body rod can pass through the connection hole of the ground wire pile. The limiting mechanism is movably connected to the base body rod. The ground wire head includes an unlocked state and a locked state. In the unlocked state, the limiting mechanism is hidden inside the base body rod, so that the base body rod can reciprocate in the connection hole of the ground wire pile. In the locked state, the limiting mechanism protrudes from the outer periphery of the base body rod, so that the base body rod is limited in the connection hole of the ground wire pile; and A control device, including a housing and a mechanical lock core. The housing is arranged on the base body. At least part of the mechanical lock core is located inside the housing. The mechanical lock core is connected to the limiting mechanism. The mechanical lock core drives the limiting mechanism to move, so that the ground wire head switches between the unlocked state and the locked state. The control device further includes: a transmission mechanism, The transmission mechanism includes: A fixed seat, fixedly installed inside the housing. The fixed seat includes a sliding groove, and the direction of the sliding groove is parallel to the extending direction of the base body rod; A sliding member, slidably arranged in the sliding groove. The sliding member is respectively connected to the mechanical lock core and the limiting mechanism, so that the mechanical lock core drives the limiting mechanism to move through the sliding member; A lock core rotating shaft, connected to the mechanical lock core. The mechanical lock core can drive the lock core rotating shaft to rotate; The housing includes a cylinder extending from the surface of the housing to the inside of the housing. The mechanical lock core is installed inside the cylinder. The fixed seat includes a first through hole and a second through hole. The first through hole communicates between the sliding groove and the second through hole. The size of the second through hole is larger than that of the first through hole. At least part of the outer peripheral surface of the lock core rotating shaft has an outwardly extending extension portion. The extension portion is located in the first through hole. The cylinder includes an inward extending end extending into the housing. The inward extending end extends into the second through hole and limits the extension portion in the first through hole.

2. The ground wire head component according to claim 1, wherein The lock core rotating shaft has a protrusion portion arranged eccentrically, The sliding member includes a groove. The groove includes a first side wall and a second side wall opposite to each other in the direction of the sliding groove. The protrusion portion extends into the groove. When the mechanical lock core rotates, the protrusion portion can abut against the first side wall and / or the second side wall to drive the sliding member to reciprocate along the sliding groove.

3. The ground wire head assembly according to claim 2, wherein The first side wall is parallel to the second side wall. Along the direction of the sliding groove, the distance between the first side wall and the second side wall is larger than the size of the protrusion portion.

4. The ground wire head assembly according to claim 1, wherein, The mechanical lock core has an operation surface for receiving control operations. The operation surface is exposed on the outer surface of the housing. The control device further includes: A dust cover, movably connected to the housing. The dust cover can cover the operation surface.

5. The ground wire head assembly according to claim 1, characterized in that, The side wall of the housing facing the base body rod has a connection hole. The transmission mechanism further includes: A transmission rod, passing through the connection hole. The transmission rod connects the sliding member and the limiting mechanism; and The transmission rod seal is arranged in the connection hole, and the transmission rod seal seals the transmission rod and the connection hole.

6. The ground wire head assembly according to claim 1, wherein The housing includes: an upper cover on which the mechanical lock core is installed; a lower cover connected to the upper cover; and a housing seal sandwiched between the upper cover and the lower cover, and the housing seal seals the upper cover and the lower cover.

7. The ground wire head assembly according to claim 1, wherein The seat body rod includes a channel and at least one limiting hole, and the limiting hole communicates the channel with the outer periphery of the seat body rod. The limiting mechanism includes: at least one limiting member movably arranged in the limiting hole; and a limiting pin reciprocally movably arranged in the channel, and the limiting pin includes at least one recess that can accommodate at least a part of the limiting member. In the unlocked state, at least a part of the limiting member is received in the recess, so that the limiting mechanism is received within the outer peripheral surface of the seat body rod. In the locked state, the limiting member avoids the recess and abuts against the outer peripheral surface of the limiting pin, so that the limiting mechanism protrudes from the outer periphery of the seat body rod.

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