CN114495693A - Electric power rack signboard and external member thereof - Google Patents

Abstract

The invention discloses a signboard for an electric power rack and a kit thereof, wherein the signboard for the electric power rack comprises a signboard frame, a signboard body and a self-locking device, and a clamping device for fixing the signboard body is arranged on the signboard frame; the self-locking device comprises a hook and a locking mechanism, the hook is connected to the card frame, and the locking mechanism is arranged on the hook; when the hook is hung on the electric power rack, the locking mechanism locks the hook on the electric power rack. The electric power rack signboard kit comprises the electric power rack signboard and an insulating operating rod, wherein two sides of the board rack are respectively provided with a limiting sleeve; the end part of the insulating operating rod is detachably connected with a card hanging clamp, and a card strip which is in clamping fit with the limiting sleeve is arranged on the card hanging clamp. The invention has the advantages of simple structure, convenient operation, firm connection and long service life, effectively improves the installation efficiency, lightens the labor intensity and ensures the safety of personnel.

Description

Electric power rack signboard and external member thereof

Technical Field

The invention relates to the technical field of signboard, in particular to a signboard of an electric power rack and a kit thereof.

Background

The electric power rack is an important component in the power grid, and usually, a signboard is hung on the electric power rack and used for marking lines, warning information and the like. The signboard is usually bound and hung on the electric power rack by adopting iron wires or other metal wires, and the electric power rack is in an outdoor environment which is complex and changeable and is inevitably subjected to severe weather such as high temperature, strong wind, heavy rain, typhoon and the like, so that the oxidation of the metal wires is accelerated, and the service life of the metal wires is greatly shortened; and increased the cracked possibility of wire, lead to the signboard to drop suddenly, endanger near pedestrian, vehicle and article, need the frequent maintenance of line patrol personnel and change the signboard, very big increase intensity of labour. Moreover, when the signboard is replaced, the power rack usually maintains normal power supply, dangerous operations of electrically climbing the power rack and binding the signboard are required, and the cost of engaging a professional to operate or using an electric working vehicle is relatively high. Therefore, there is a need to solve the above problems.

Disclosure of Invention

The present invention is directed to solving the above problems and providing a signboard and a kit for a power rack.

The invention realizes the purpose through the following technical scheme: a signboard of an electric power rack comprises a signboard frame, a signboard body and a self-locking device, wherein a clamping device used for fixing the signboard body is arranged on the signboard frame; the self-locking device comprises a hook and a locking mechanism, the hook is connected to the card rack, and the locking mechanism is arranged on the hook; when the hook is hung on the power rack, the locking mechanism locks the hook on the power rack.

Furthermore, a first magnetic suction block is arranged on the signboard frame, and a second magnetic suction block which corresponds to the first magnetic suction block and is mutually attracted is arranged on the signboard body; make accurate the installing on the tablet frame of signboard body, guarantee to fix a position the signboard body on the correct position, avoid appearing crooked, the displacement other incorrect position's such problems, improve the installation effectiveness of signboard body.

Furthermore, the clamping device comprises a card clamp and an elastic reed, one side of the card clamp is hinged and matched with the card frame, and the card clamp is connected with an operating ring; the signboard clamp is convenient to operate, and the signboard clamp is convenient to close or open, so that the signboard body is clamped or loosened quickly; the card holder is characterized in that a convex edge is arranged on the other side of the card holder, a limiting groove corresponding to the card holder is arranged on the card frame, the elastic spring leaf is clamped between the convex edge and the limiting groove, and the elastic spring leaf can keep the card holder in a clamping or loosening state; under the acting force of the elastic spring leaf, the signboard clamp can firmly clamp the signboard body on the signboard frame and is convenient to open the signboard clamp, so that the signboard body is loosened and is convenient to replace.

Further, the hook is in an Jiong-shaped structure; the locking mechanism comprises a locking bar and a lock cylinder, the locking bar is rotatably connected to one side of the hook, the lock cylinder is slidably arranged on the other side of the hook, and a lock hole for the lock cylinder to be inserted and matched is formed in the locking bar so that the locking bar can open or close the opening of the hook; after the lock cylinder is inserted into the lock hole, the opening of the hook in the Jiong-shaped structure is effectively sealed by the lock bar, so that the hook and the whole signboard are firmly locked on the electric power rack, and the possibility of sudden falling is avoided.

Further, the locking bar comprises a pushing part and a limiting part, the pushing part is rotatably connected with the hook through a locking shaft, the pushing part extends into an opening of the hook, the limiting part vertically extends downwards, and the locking hole is formed in the limiting part; when hanging the couple and establishing to the electric power rack, the electric power rack can make promotion portion remove to let the locking bar rotate, make the lockhole of spacing portion department remove to lock core department, thereby automatic with its locking, realize the auto-lock, the installation of this signboard of being convenient for, convenient operation.

Furthermore, a mounting hole penetrates through the hook, and an elastic part is arranged in the mounting hole; the lock cylinder is arranged in the mounting hole in a sliding mode and comprises a locking part and a limiting part, the locking part is matched with the lock hole, and the limiting part extends out of the hook and is connected with a limiting part; the elastic piece drives the limiting piece to be matched with the hook in a stopping way, and the locking part extends out of the hook; under the action force of the elastic piece, the locking part can be firmly inserted into the lock hole, the self-locking is convenient, and the lock cylinder is firmly connected to the hook under the stop matching of the limiting piece, so that the possibility of falling is avoided.

Furthermore, a host is arranged on the back of the card frame, a remote communication module and a storage battery are electrically connected in the host, and a status lamp electrically connected with the remote communication module is arranged on the card frame; the color of the status lamp is changed through the remote communication module, the status of the current power rack is visually identified, the work of line patrol personnel is facilitated, and the work efficiency is improved; the remote communication module is electrically connected with a photovoltaic control circuit board, and a solar cell panel electrically connected with the photovoltaic control circuit board is arranged on the board frame; the solar cell panel provides power, so that the solar cell panel is more energy-saving and environment-friendly.

An electric power rack signboard kit comprises the electric power rack signboard and an insulating operating rod, wherein two sides of a board rack are respectively provided with a limiting sleeve; the end part of the insulating operating rod is detachably connected with a card hanging clamp, and a card strip matched with the limiting sleeve in a clamping mode is arranged on the card hanging clamp.

Furthermore, an adjusting arm is hinged to the card hanging clamp and is in threaded connection with the insulating operating rod; the angle of the relative insulating bar of tablet anchor clamps is hung in the adjustment of being convenient for hang tablet anchor clamps and the present position looks adaptation of signboard body, easy to assemble.

Furthermore, the end part of the insulating operating rod can be detachably connected with a sucker; the signboard body can be firmly adsorbed, and the signboard body is convenient to mount or take down; an air suction mechanism is arranged in the insulating operating rod and comprises a cylinder body, a piston and a handle, the cylinder body is fixedly arranged in the insulating operating rod, an inner cavity of the cylinder body is communicated with the sucker, the piston is arranged in the cylinder body in a sliding and sealing mode, one end of the handle is connected with the piston, a sliding hole is formed in the insulating operating rod in the axial direction, and the other end of the handle extends out of the insulating operating rod from the sliding hole; guarantee that the sucking disc can produce sufficient suction to can be firm adsorb the signboard body, avoid the installation or take off the possibility that the process dropped.

The invention has the beneficial effects that: firstly, the signboard body is firmly fixed on the signboard frame through the clamping device, and the hook is locked on the electric power rack through the locking mechanism, so that the signboard body is firmly connected on the electric power rack in a hanging manner, the problem of sudden drop is effectively avoided, the safety of nearby pedestrians, vehicles and articles is ensured, the service life of the signboard body is prolonged, frequent maintenance and replacement are not needed, and the labor intensity is reduced; secondly, during hanging operation, due to the arrangement of the hook and the locking mechanism arranged on the hook, the signboard can be conveniently and quickly fixed on the electric power rack, the operation is convenient and quick, and the labor intensity is reduced; thirdly, the insulating operating rod is operated through the power rack signboard kit, so that the clamping strips on the signboard clamp are in clamping fit with the limiting sleeve, the power rack signboard can be remotely installed on the power rack without climbing on the power rack, potential safety hazards are avoided, personnel safety is kept, the structure is simple, the operation is convenient, the operation is easy, the employment of professional personnel for operation or the use of a live working vehicle for operation is not needed, the cost is effectively reduced, and the technical problem in the prior art is solved; generally, the invention has the advantages of simple structure, convenient operation, firm connection and long service life, effectively improves the installation efficiency, lightens the labor intensity and ensures the safety of personnel.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded schematic view of the present invention;

FIG. 3 is a schematic structural view of the self-locking device of the present invention;

FIG. 4 is a schematic view of the self-locking device of the present invention in a locked state;

FIG. 5 is a sectional view of the present invention at the lock core;

FIG. 6 is a schematic view of a clamp of the present invention in section;

FIG. 7 is a schematic view of the arrangement of the card hanging fixture of the present invention mounted on an insulated operating rod;

FIG. 8 is a schematic view of the structure of the suction cup of the present invention mounted on the insulating operating rod;

FIG. 9 is a sectional view of the suction mechanism of the present invention;

FIG. 10 is a schematic view of the working conditions for installing the present invention;

FIG. 11 is a schematic view of the present invention hanging on a power stand;

fig. 12 is a schematic view showing the operation state of the signboard changing apparatus according to the present invention.

The reference numerals are explained below:

1-card holder; 11-a first magnetic block; 12-a limiting groove; 13-a stop collar; 2-signboard body; 21-a second magnetic block; 3, self-locking device; 31-hanging hook; 311-mounting holes; 312 — a first step; 32-a locking bar; 321-a lock hole; 322-a pushing part; 323-a limiting part; 33-a lock cylinder; 331-a locking part; 332-a restriction; 333-a second step; 34-a latch shaft; 35-an elastic member; 36-a stop; 4-a clamping device; 41-card holder; 411-raised edge; 42-a spring reed; 43-operating ring; 5-a host; 6-status light; 7-solar panels; 8-an insulated operating rod; 81-cylinder body; 811-interface; 82-a piston; 83-a handle; 84-a slide hole; 85-piston arm; 9-card hanging clamp; 91-clamping strip; 92-an adjusting arm; 93-a hinge axis; 94-tightening the knob; 10-a suction cup; 101-universal tube.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 12, the present embodiment provides a signboard of an electric power rack, which includes a board frame 1, a signboard body 2 and a self-locking device 3, wherein the board frame 1 is provided with a clamping device 4 for fixing the signboard body 2; the self-locking device 3 comprises a hook 31 and a locking mechanism, the hook 31 is connected to the card frame 1, and the locking mechanism is arranged on the hook 31; when the hook 31 is hung on the power rack, the locking mechanism locks the hook 31 on the power rack.

Specifically, two self-locking devices 3 are arranged at the top end of the signboard frame 1, and the self-locking devices 3 are fixedly connected through connecting rods, so that stress is balanced, and the hanging firmness of the signboard of the electric power rack is ensured; of course, a greater number of self-locking devices 3 can be provided, and the self-locking devices can be reasonably arranged according to the actual size of the signboard of the power rack and are not limited to the number described above.

The card holder 1 is provided with a first magnetic attraction block 11, and the signboard body 2 is provided with a second magnetic attraction block 21 which corresponds to the first magnetic attraction block 11 and attracts each other. Preferably, four first magnetic blocks 11 are uniformly distributed on the front surface of the card frame 1, and four second magnetic blocks 21 corresponding to the signboard body 2 one by one are arranged on the signboard body; of course, other numbers of the first magnet blocks 11 or the second magnet blocks 21 can be provided, and are not limited to the numbers described above.

The clamping device 4 comprises a card holder 41 and an elastic spring 42, one side of the card holder 41 is hinged and matched with the card frame 1, the other side of the card holder 41 is provided with a convex edge 411, the card frame 1 is provided with a limiting groove 12 corresponding to the card holder 41, the elastic spring 42 is clamped between the convex edge 411 and the limiting groove 12, and the elastic spring 42 can keep the card holder 41 in a clamping or loosening state; an operating ring 43 is attached to the card holder 41. Preferably, the upper side and the lower side of the card frame 1 are respectively provided with the clamping devices 4, and the limiting grooves 12 are correspondingly arranged one by one, so that the clamping is firmer. The card holder 4 has a semicircular cross section, and the elastic spring 42 has an arched structure, so that the card holder 4 can be kept in a clamping or loosening state.

Under normal conditions, under the action of the elastic spring 42, the card holder 41 is tightly attached to the signboard body 2, so that the signboard body 2 is firmly clamped on the front surface of the card frame 1. When the signboard body 2 needs to be removed, the insulating operation rod 8 can be operated to pull the operation ring 43, one side of the card holder 41 rotates relative to the card frame 1, and the other side of the card holder 41 rapidly moves away from the signboard body 2 under the action of the elastic spring pieces 42 and the external force of the insulating operation rod 8, so that the clamping device 4 is opened, and then the state is released, so that the signboard body 2 can be removed. On the contrary, when installing signboard body 2, opening clamping device 4 earlier, then place signboard body 2 in the front of tablet frame 1, inhale each other under piece 11 and the second magnetism piece 21 of inhaling down, make signboard body 2 fix a position to the correct position, operate insulating bar 8 again, promote operating ring 43, the relative tablet frame 1 of one side of tablet clamp 41 rotates, the opposite side of tablet clamp 41 is under the effort of elasticity reed 42 and the external force of insulating bar 8, be close to signboard body 2 fast, thereby close clamping device 4, be the tight state this moment, thereby firm clamp plate signboard body 2.

The hook 31 is in a Jiong-shaped structure; the locking mechanism comprises a locking strip 32 and a lock cylinder 33, the locking strip 32 is rotatably connected to one side of the hook 31, the lock cylinder 33 is slidably arranged on the other side of the hook 31, and a lock hole 321 for the lock cylinder 33 to be in inserted connection is formed in the locking strip 32, so that the locking strip 32 opens or closes the opening of the hook 31.

The locking bar 32 comprises a pushing part 322 and a limiting part 323, the pushing part 322 is rotatably connected with the hook 31 through the locking shaft 34, the pushing part 322 extends into an opening of the hook 31, the limiting part 323 vertically extends downwards, and the locking hole 321 is arranged on the limiting part 323. Preferably, the pushing part 322 is perpendicular to the limiting part 323, the length of the limiting part 323 is greater than the width of the opening of the hook 31, and when the locking is performed, the limiting part 323 can effectively seal the opening of the hook 31, so that the reliability of connection is ensured.

A mounting hole 311 penetrates through the hook 31, and an elastic part 35 is arranged in the mounting hole 311; the lock cylinder 33 is slidably arranged in the mounting hole 311, the lock cylinder 33 comprises a locking part 331 and a limiting part 332, the locking part 331 is matched with the lock hole 321, and the limiting part 332 extends out of the hook 31 and is connected with a limiting piece 36; the elastic member 35 drives the limiting member 36 to engage with the hook 31, and the locking portion 331 protrudes out of the hook 31. Preferably, a first step 312 is arranged in the mounting hole 311, the diameters of the locking portion 331 and the limiting portion 332 are not equal, a second step 333 is formed therebetween, two ends of the elastic member 35 respectively abut against the first step 312 and the second step 333, the elastic member 35 is a cylindrical spring, and the elastic member 35 is sleeved on the limiting portion 332. The circumferential surface of the limiting portion 332 is a threaded structure, the limiting member 36 is a nut matched with the limiting member 36, and the limiting member 36 can be screwed, so that the lock cylinder 33 slides relative to the mounting hole 311, thereby adjusting the elastic force of the elastic member 35 and ensuring the locking force of the lock cylinder 33. The outer end surface of the locking portion 331 is disposed obliquely to the horizontal plane (see fig. 5).

In general, when the signboard is not installed on the power rack, since the keyhole shaft 34 is disposed at the pushing portion 322, and the pushing portion 322 is kept in a state of extending into the opening of the hook 31 under the action of gravity, the limiting portion 323 is in a vertically downward state (see fig. 3); when the hook 31 is hooked to the electric power rack, the pushing portion 322 will abut against the angle iron of the electric power rack and continue to be hooked downward, so as to push the pushing portion 322, the lock bar 32 integrally rotates under the action of the lock shaft 34, the pushing portion 322 is far away from the opening of the hook 31, the limiting portion 323 is close to the lock cylinder 33, because the outer end face of the locking portion 331 is obliquely arranged relative to the horizontal plane, the limiting portion 323 pushes the lock cylinder 33, the lock cylinder 33 overcomes the elastic force of the elastic member 35, slides relative to the mounting hole 311, retracts inwards, and continues to rotate until the lock hole 321 corresponds to the lock portion 331, and under the elastic force of the elastic member 35, the lock cylinder 33 will slide relative to the mounting hole 311 and extend outwards, so that the locking portion 331 is inserted into the lock hole 321, thereby automatically locking the lock bar 32, and firmly locking on the electric power rack. On the contrary, as long as the lock core 33 is pulled to overcome the elastic force of the elastic member 35, the lock core slides relative to the mounting hole 311 and retracts inwards, so that the lock bar 32 can be unlocked, and at the moment, the lock bar 32 can rotate relative to the hook 31.

The back of the card frame 1 is provided with a host 5, a remote communication module and a storage battery are electrically connected in the host 5, and a status lamp 6 electrically connected with the remote communication module is arranged on the card frame 1. The remote communication module is electrically connected with a photovoltaic control circuit board, and a solar cell panel 7 electrically connected with the photovoltaic control circuit board is arranged on the board frame 1. Specifically, the storage battery provides a working power supply for the remote communication module, the status light 6 and the photovoltaic control circuit board, and the solar panel 7 can convert solar energy into electric energy and store the electric energy in the storage battery through the processing of the photovoltaic control circuit board. The remote communication module can receive signals of a remote console or a background, and can regulate and control the color of the status lamp 6 by the received signals, and when the circuit rack is a normal circuit, the status lamp 6 is displayed as green; when the line is in fault, the background can change the status lamp 6 of the fault line into red or yellow and the like, so that operation and maintenance personnel can conveniently confirm the status of the circuit rack without frequently confirming the serial number of the power rack, and the operation and maintenance speed of the fault of the power rack is increased. Preferably, the status lights 6 are distributed in a strip shape, so that the visible area can be effectively enlarged, and the status lights are more visual and convenient for operation and maintenance personnel to check; the status light 6 is arranged below the card holder 41, and the card holder 41 can block part of light directly irradiating the signboard body 2, so that light pollution can be effectively avoided.

Preferably, the whole power rack signboard is made of an insulating material, so that the insulativity of the power rack signboard is guaranteed, the safety of operators is guaranteed, and the possibility of electric shock is avoided.

The invention also provides a signboard kit of the electric power rack, which comprises the signboard of the electric power rack and an insulating operating rod 8, wherein two sides of the board frame 1 are respectively provided with a limit sleeve 13; the end part of the insulating operating rod 8 is detachably connected with a card hanging clamp 9, and a card strip 91 which is in clamping fit with the limiting sleeve 13 is arranged on the card hanging clamp 9. Preferably, two limiting sleeves 13 are respectively arranged on two sides of the card frame 1, and four clamping strips 91 are correspondingly arranged on the card hanging clamp 9 one by one.

An adjusting arm 92 is hinged on the card hanging clamp 9, and the adjusting arm 92 is in threaded connection with the insulating operating rod 8. Preferably, the adjusting arm 92 is in hinged fit with the tile hanging clamp 9 through a hinge shaft 93, and the outer side end of the hinge shaft 93 is in threaded connection with a fastening knob 94; the fastening knob 94 can be loosened, the adjusting arm 92 can rotate relative to the card hanging clamp 9, the angle of the card hanging clamp can be adjusted conveniently, and then the fastening knob 94 is screwed down, so that the adjusting arm 92 can be locked relative to the card hanging clamp 9 and positioned at a proper angle, the card hanging clamp 9 can be matched with the card rack 1 conveniently, and the installation is convenient. Insulating bar 8 can be formed by the concatenation of many insulator spindles, and spiro union each other, lock joint or other can dismantle connected mode between many insulator spindles, and nimble change insulating bar 8's use length effectively solves the problem of the mounting position difference of electric power rack signboard.

When the signboard hanging clamp 9 is installed, the signboard hanging clamp 9 is assembled on the insulating operation rod 8, the angle of the adjusting arm 92 is adjusted, then the clamping strip 91 is inserted corresponding to the limiting sleeve 13, at the moment, the insulating operation rod 8 is lifted, the signboard of the electric power rack is installed on the electric power rack, the hook 31 is hung on the angle iron, the locking mechanism locks the hook 31 on the electric power rack, and the self-locking process can be referred to the above description.

The end part of the insulated operating rod 8 can be detachably connected with a sucker 10; an air suction mechanism is arranged in the insulating operating rod 8 and comprises a cylinder body 81, a piston 82 and a handle 83, the cylinder body 81 is fixedly arranged in the insulating operating rod 8, an inner cavity of the cylinder body 81 is communicated with the suction disc 10, the piston 82 is arranged in the cylinder body 81 in a sliding sealing mode, one end of the handle 83 is connected with the piston 82, a sliding hole 84 is formed in the insulating operating rod 8 in the axial direction, and the other end of the handle 83 extends out of the insulating operating rod 8 from the sliding hole 84. Preferably, the suction cup 10 is connected with the insulating operating rod 8 through a universal pipe 101, and the universal pipe 101 adopts a hose capable of rotating freely, so that the angle of the suction cup 10 can be adjusted conveniently to adapt to the angle of the signboard body 2. The upper end of the cylinder body 81 is provided with an interface 811, the interface 811 is communicated with the sucker 10 through an air pipe, and the air pipe penetrates through the insulating operating rod 8, so that the splicing of a plurality of insulating rods is facilitated; the handle 83 is connected with the piston 82 through a piston arm 85, the piston arm 85 penetrates out of the bottom end of the cylinder body 81, and the piston arm 85 is perpendicular to the handle 83; the sliding hole 84 is L-shaped, so that the handle 83 can be clamped at the corner of the sliding block 84, the suction force of the suction cup 10 can be effectively kept, the operation is convenient, and an operator does not need to hold the handle 83 all the time.

When the signboard body 2 is replaced, the clamping device 4 is firstly opened, the signboard hanging clamp 9 is detached, the sucker 10 is assembled on the insulating operating rod 8, then the insulating operating rod 8 is operated, the sucker 10 is attached to the signboard body 2, the handle 83 is pulled downwards, the piston 82 slides relative to the cylinder body 81, under the connecting action of the air pipe, air in the sucker 10 is sucked out, so that suction force is generated, the signboard body 2 is sucked by the sucker 10, then the handle 83 is rotated to be clamped at the corner of the sliding block 84, finally the insulating operating rod 8 is operated, the signboard body 2 is taken down, the handle 83 is moved to the original position, and the signboard body 2 can be easily taken down; the signboard body 2 that changes newly, make the sucking disc 10 to hold new signboard body 2 again, operation insulating bar 8 is placed new signboard body 2 in tablet frame 1 department, and under the inter attraction of first magnetism piece 11 and second magnetism piece 21 for signboard body 2 is fixed a position to the correct position, closes clamping device 4 at last, makes handle 83 remove to the normal position, has just accomplished the change of signboard body 2.

It is worth mentioning that the suction cup 10 can be replaced by an electromagnet, a corresponding metal block is arranged on the signboard body 2, and the metal block and the signboard body 2 can be sucked by controlling the suction force of the electromagnet through a circuit; of course, the suction cup 10 may be equivalently replaced by other suction devices.

The foregoing shows and describes the general principles, features and advantages of the invention. It will be understood by those skilled in the art that the invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an electric power rack signboard which characterized in that: the signboard fixing device comprises a signboard frame (1), a signboard body (2) and a self-locking device (3), wherein a clamping device (4) for fixing the signboard body (2) is arranged on the signboard frame (1);

the self-locking device (3) comprises a hook (31) and a locking mechanism, the hook (31) is connected to the card holder (1), and the locking mechanism is arranged on the hook (31);

when the hook (31) is hung on the electric power rack, the locking mechanism locks the hook (31) on the electric power rack.

2. The power rack signboard of claim 1 wherein: the signboard frame (1) is provided with a first magnetic attraction block (11), and the signboard body (2) is provided with a second magnetic attraction block (21) which corresponds to the first magnetic attraction block (11) and attracts each other.

3. The power rack signboard of claim 1 wherein: clamping device (4) include that the tablet presss from both sides (41) and elasticity reed (42), be connected with operation ring (43) on the tablet presss from both sides (41), one side that the tablet pressed from both sides (41) with the articulated cooperation of tablet frame (1), the opposite side that the tablet pressed from both sides (41) is equipped with protruding edge (411), be equipped with on tablet frame (1) with tablet presss from both sides corresponding spacing groove (12) of (41), elasticity reed (42) joint in protruding edge (411) with between spacing groove (12), elasticity reed (42) can make tablet clamp (41) keep in pressing from both sides tightly or unclamping the state.

4. The power rack signboard of claim 1 wherein: the hook (31) is in a structure of Jiong; locking mechanical system includes locking strip (32) and lock core (33), locking strip (32) rotate connect in one side of couple (31), lock core (33) slide set up in the opposite side of couple (31), be equipped with the confession on locking strip (32) lock core (33) grafting complex lockhole (321), so that locking strip (32) are opened or are sealed the opening of couple (31).

5. The power rack signboard of claim 4 wherein: the locking bar (32) comprises a pushing portion (322) and a limiting portion (323), the pushing portion (322) is connected with the hook (31) in a rotating mode through a lock catch shaft (34), the pushing portion (322) extends into the opening of the hook (31), the limiting portion (323) extends downwards vertically, and the lock hole (321) is formed in the limiting portion (323).

6. The power rack signboard of claim 4 wherein: a mounting hole (311) penetrates through the hook (31), and an elastic piece (35) is arranged in the mounting hole (311); the lock cylinder (33) is arranged in the mounting hole (311) in a sliding mode, the lock cylinder (33) comprises a locking part (331) and a limiting part (332), the locking part (331) is matched with the lock hole (321), and the limiting part (332) extends out of the hook (31) and is connected with a limiting piece (36); the elastic piece (35) drives the limiting piece (36) to be matched with the hook (31) in a stop mode, and the locking portion (331) extends out of the hook (31).

7. The power rack signboard of any one of claims 1 to 6, wherein: a host (5) is arranged on the back of the card frame (1), a remote communication module and a storage battery are electrically connected in the host (5), and a status lamp (6) electrically connected with the remote communication module is arranged on the card frame (1); the remote communication module is electrically connected with a photovoltaic control circuit board, and a solar cell panel (7) electrically connected with the photovoltaic control circuit board is arranged on the board frame (1).

8. The utility model provides an electric power rack signboard external member which characterized in that: the electric power rack signboard of any one of claims 1 to 7 and an insulating operating rod (8) are included, and both sides of the board rack (1) are respectively provided with a limiting sleeve (13); the end part of the insulating operating rod (8) can be detachably connected with a card hanging clamp (9), and a card strip (91) matched with the limiting sleeve (13) in a clamping mode is arranged on the card hanging clamp (9).

9. The power rack signboard kit of claim 8, wherein: an adjusting arm (92) is hinged to the card hanging clamp (9), and the adjusting arm (92) is in threaded fit with the insulating operating rod (8).

10. The power rack signboard kit of claim 8, wherein: the end part of the insulating operating rod (8) can be detachably connected with a sucker (10); be equipped with air suction mechanism in insulating bar (8), air suction mechanism includes cylinder body (81), piston (82) and handle (83), cylinder body (81) set firmly in insulating bar (8), the inner chamber of cylinder body (81) with sucking disc (10) intercommunication, piston (82) slide seal set up in cylinder body (81), the one end of handle (83) with piston (82) are connected, follow the axial of insulating bar (8) has seted up slide opening (84), the other end of handle (83) is followed slide opening (84) stretch out outside insulating bar (8).

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