CN215955132U - Time-delay key exchange box - Google Patents

Abstract

The utility model discloses a time-delay key exchange box which comprises an installation plate, wherein a first-stage lock head, a second-stage lock head and a third-stage lock head are sequentially arranged at the rear part of the upper end of the installation plate from right to left, the first-stage lock head, the second-stage lock head and the third-stage lock head all extend to the lower part of the installation plate, a button is arranged at the front part of the upper end of the installation plate, an indicator lamp is arranged at the right part of the upper end of the installation plate, first side plates are fixedly arranged at the left end and the right end of the installation plate, the first side plates are in L-shaped structures, second side plates are fixedly arranged at the front end and the rear end of the installation plate, and the second side plates are as high as the first side plates. The electric key exchange box is provided with the electric push rod, the rotary switch assembly, the induction block, the controller and the power supply, and the time delay function is added on the original key exchange box, so that the purpose of forcibly cutting off the electrical control grounding of equipment is realized, and the grounding state can not be changed.

Description

Time-delay key exchange box

Technical Field

The utility model relates to the technical field of electric appliance control, in particular to a time-delay key exchange box.

Background

Key exchange boxes are arranged in various places needing electrical equipment, such as switch cabinets, high-speed rails, subways and the like, and some scenes or closed spaces can be operated in the next step only after a certain time delay is started. There is therefore a need for a key exchange box with a time delay function that solves the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the time-delay key exchange box which has the time-delay function, is simple in structure and low in manufacturing cost and is beneficial to popularization and use.

The technical scheme of the utility model is as follows:

the utility model provides a time delay key exchange box, includes the mounting panel, mounting panel upper end rear portion has set gradually one-level tapered end, second grade tapered end, tertiary tapered end from a right side to a left side, one-level tapered end, second grade tapered end, tertiary tapered end all extend to the mounting panel below, mounting panel upper end front portion is provided with the button, mounting panel upper end right part is provided with the pilot lamp, the equal fixed mounting of mounting panel left end and right-hand member has first curb plate, first curb plate is L shape structure, the equal fixed mounting in mounting panel front end and rear end has the second curb plate, second curb plate and first curb plate height are the same.

The working principle of the technical scheme is as follows:

when the key exchange box is used, the key exchange box is electrically connected with equipment, then a key is inserted into a first-stage lock head and is rotated, a lock rod right below the first-stage lock head drives a lock plate right below the first-stage lock head to rotate, the rotating lock plate is contacted with a limiting shifting plate, a sensing block is triggered and transmits an electric signal to a controller, the controller receives the electric signal and then enables the equipment to be electrified and count down, when the specified time is up, an indicator lamp displays green and normally bright, then a button is pressed, the controller controls the output end of an electric push rod to be far away from the lock plate right below a second-stage lock head, so that the lock plate enters a rotatable state, then another key is used for rotating the second-stage lock head, finally, the last key is used for rotating a third-stage lock head, the purpose of forcibly cutting off the electrical control grounding of the equipment is achieved, the grounding state cannot be changed, and meanwhile, the last key cannot be separated from the third-stage lock head, only the first-stage lock head and the second-stage lock head can be taken out when reset.

The utility model adds the time delay function on the basis of having the basic function of the exchange box, realizes the function of pulling out the key after time delay, and is beneficial to the popularization and the application of the key exchange box.

In a further technical scheme, electric putter, response piece, controller and power are installed to the mounting panel lower extreme, equal electric connection between power and electric putter, response piece, the controller, one-level tapered end, second grade tapered end, tertiary tapered end lower extreme all are provided with the rotary switch subassembly, the rotary switch subassembly contact of electric putter output and centre, the response piece is located rightmost side rotary switch subassembly right-hand, equal electric connection between controller and pilot lamp, button, electric putter, the response piece.

The power supply is provided for the electric push rod, the induction block and the controller, the electric push rod is arranged to realize the interlocking of the three locking plates, when the middle locking plate is far away from the output end of the electric push rod, the three locking plates can rotate freely, and whether the one-level lock head is rotated or not is detected through the induction block.

In a further technical scheme, the rotary switch assembly comprises a lock rod, and a lock plate is arranged at the lower end of the lock rod.

The lock rod can drive the lock plate to rotate, and the lock rod rotates along with the rotation of the lock head.

In a further technical scheme, locking plate surface one side is provided with the depressed part of two symmetries, locking plate surface opposite side is provided with the bellying.

When the concave part of one locking plate corresponds to the convex part of the adjacent locking plate, the locking plate can not rotate.

In a further technical scheme, response piece left end rear portion is provided with spacing plectrum, spacing plectrum is located rightly right side in the most right side locking plate depressed part.

When the lock piece below the first-stage lock head rotates, the protruding part just extrudes the limiting shifting piece, and the sensing block is automatically triggered after the limiting shifting piece is extruded.

In a further aspect, the recessed portion is mated with the raised portion.

The design of the concave part and the convex part realizes the mutual interlocking of a plurality of locking plates.

The utility model has the beneficial effects that:

1. the electric push rod, the rotary switch component, the induction block, the controller and the power supply are arranged to add a time delay function on the original key exchange box, so that the purpose that the electrical control grounding of the forced cut-off equipment is realized, and the grounding state cannot be changed is achieved;

2. the utility model has simple structure, low manufacturing cost and strong practicability and is beneficial to popularization and use.

Drawings

Fig. 1 is a schematic view of an overall structure of a time-delay key exchange box according to an embodiment of the present invention;

FIG. 2 is a bottom view of the overall structure of a time delayed key exchange box according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of the rotary switch assembly according to the embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of the locking plate according to the embodiment of the present invention.

Description of reference numerals:

1. mounting a plate; 2. a first-stage lock head; 3. a secondary lock head; 4. a three-stage lock head; 5. an indicator light; 6. a first side plate; 7. a second side plate; 8. a button; 21. an electric push rod; 22. a rotary switch assembly; 23. an induction block; 24. a controller; 25. a power source; 31. a lock lever; 32. a locking plate; 41. a recessed portion; 42. a boss portion; 51. a limit shifting piece.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1-4, a time delay key exchange box, includes mounting panel 1, 1 upper end rear portion of mounting panel has set gradually one-level tapered end 2, second grade tapered end 3, tertiary tapered end 4 from a right side to a left side, one-level tapered end 2, second grade tapered end 3, tertiary tapered end 4 all extend to 1 below of mounting panel, 1 upper end front portion of mounting panel is provided with button 8, 1 upper end right part of mounting panel is provided with pilot lamp 5, 1 left end of mounting panel and the equal fixed mounting of right-hand member have first curb plate 6, first curb plate 6 is L shape structure, the equal fixed mounting in 1 front end of mounting panel and rear end has second curb plate 7, second curb plate 7 and first curb plate 6 height-alike.

The working principle of the technical scheme is as follows:

when the key exchange box is used, the key exchange box is electrically connected with equipment, then a key is inserted into the first-stage lock head 2 and rotated, the lock rod 31 right below the first-stage lock head 2 drives the lock sheet 22 right below the first-stage lock head to rotate, the rotated lock sheet 22 contacts the limiting shifting sheet 51, the sensing block 23 is triggered, the sensing block 23 transmits an electric signal to the controller 24, the controller 24 starts to electrify and count down the equipment after receiving the electric signal, after the specified time, the indicator light 7 is displayed as green and normally on, then the button 8 is pressed, at the moment, the controller 24 controls the output end of the electric push rod 21 to be far away from the lock sheet 32 right below the second-stage lock head 3, so that the lock sheet 32 enters a rotatable state, then the other key is used for rotating the second-stage lock head 3, finally, the last key is used for rotating the third-stage lock head 4, and forced cutting of the equipment is realized at the moment, and the grounding state can not be changed, meanwhile, the last key can not be separated from the three-stage lock head 4, and only the first-stage lock head 2 and the second-stage lock head 3 can be taken out when reset.

The utility model adds the time delay function on the basis of having the basic function of the exchange box, realizes the function of pulling out the key after time delay, and is beneficial to the popularization and the application of the key exchange box.

In another embodiment, electric putter 21, response piece 23, controller 24 and power 25 are installed to mounting panel 1 lower extreme, equal electric connection between power 25 and electric putter 21, response piece 23, the controller 24, one-level tapered end 2, second grade tapered end 3, tertiary tapered end 4 lower extreme all are provided with rotary switch component 22, electric putter 21 output and the contact of middle rotary switch component 22, it is right-hand just to be located rightmost rotary switch component 22 that the response piece 23 is located, equal electric connection between controller 24 and pilot lamp 5, button 8, electric putter 21, the response piece 23. Provide the power for electric putter 21, response piece 23 and controller 24 through power 25, electric putter 21's setting has realized the interlocking of three locking plate 32, and when middle locking plate 32 was kept away from to electric putter 21 output, three locking plate 32 could the free rotation, whether detected one-level tapered end 2 through response piece 23 by the rotation.

In another embodiment, the rotary switch assembly 22 includes a lock lever 31, and a locking plate 32 is disposed at a lower end of the lock lever 31. The locking bar 31 can drive the locking piece 32 to rotate, and the locking bar 31 rotates along with the rotation of the locking head.

In another embodiment, two symmetric recesses 41 are disposed on one side of the outer surface of the locking piece 32, and a protrusion 42 is disposed on the other side of the outer surface of the locking piece 32. When the recessed portion 41 of one locking tab 32 corresponds to the raised portion 42 of an adjacent locking tab 32, the locking tab 32 cannot be rotated.

In another embodiment, the rear part of the left end of the sensing block 23 is provided with a position-limiting shifting piece 51, and the position-limiting shifting piece 51 is located right to the concave part 41 in the rightmost locking piece 32. When the locking piece 32 under the first-stage locking head 2 rotates, the protruding part 42 just extrudes the limit shifting piece 51, and the sensing block 23 is automatically triggered after the limit shifting piece 51 is extruded.

In another embodiment, the recesses 41 are matched to the protrusions 42. The design of the recesses 41 and the protrusions 42 achieves interlocking of the plurality of locking tabs 32 with one another.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (6)

1. The utility model provides a time delay key exchange box, includes the mounting panel, its characterized in that, mounting panel upper end rear portion has set gradually one-level tapered end, second grade tapered end, tertiary tapered end from a right side to a left side, one-level tapered end, second grade tapered end, tertiary tapered end all extend to the mounting panel below, mounting panel upper end front portion is provided with the button, mounting panel upper end right part is provided with the pilot lamp, the equal fixed mounting of mounting panel left end and right-hand member has first curb plate, first curb plate is L shape structure, the equal fixed mounting in mounting panel front end and rear end has the second curb plate, second curb plate and first curb plate height are the same.

2. The time-delay key exchange box according to claim 1, wherein an electric push rod, a sensing block, a controller and a power source are mounted at the lower end of the mounting plate, the power source is electrically connected with the electric push rod, the sensing block and the controller, rotary switch assemblies are arranged at the lower ends of the first-stage lock head, the second-stage lock head and the third-stage lock head, the output end of the electric push rod is in contact with the middle rotary switch assembly, the sensing block is located right and right of the rightmost rotary switch assembly, and the controller is electrically connected with the indicator lamp, the button, the electric push rod and the sensing block.

3. The time delay key exchange cartridge of claim 2, wherein the rotary switch assembly includes a locking bar having a locking tab disposed at a lower end thereof.

4. A time delay key exchange case according to claim 3, wherein said locking plate outer surface is provided with two symmetrical recesses on one side and a protrusion on the other side.

5. The time delay key exchange box of claim 2, wherein the rear portion of the left end of the sensing block is provided with a limit shifting piece which is positioned right to the recess in the rightmost locking plate.

6. The time delay key exchange cartridge of claim 4, wherein the recess mates with the protrusion.

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