CN110512946B - Novel mechanical program lock and use method thereof - Google Patents
Novel mechanical program lock and use method thereof Download PDFInfo
- Publication number
- CN110512946B CN110512946B CN201910795315.2A CN201910795315A CN110512946B CN 110512946 B CN110512946 B CN 110512946B CN 201910795315 A CN201910795315 A CN 201910795315A CN 110512946 B CN110512946 B CN 110512946B
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- Prior art keywords
- lock
- door
- plugboard
- piece
- baffle
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
- E05B15/0205—Striking-plates, keepers, staples
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/04—Spring arrangements in locks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/02—Locks or fastenings for special use for thin, hollow, or thin-metal wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
Abstract
The utility model relates to electrical switching equipment and discloses a novel mechanical program lock and a use method thereof, wherein a baffle member is arranged in a lock box to prevent a lock tongue from extending out; the side wall of the lock box is provided with a slot which is communicated with the lock box accommodating cavity for the insertion of the door plugboard; the novel mechanical program lock further comprises an elastic piece connected to the baffle piece so that the baffle piece has the trend of blocking the extension of the lock tongue; the door plugboard is penetrated with a limiting hole through which the lock tongue extends and passes to lock the door plugboard in the lock box; only when the door body of the switch cabinet or the transformer room is closed, the key can be rotated to enable the lock tongue to extend completely, so that the key can be pulled out of the lock cylinder to be used for the next procedure lock; otherwise, if the door body of the switch cabinet or the transformer room is not closed or the lock tongue is not fully extended, the key cannot be pulled out from the lock core, and misoperation is avoided.
Description
Technical Field
The present utility model relates to electrical switching apparatus, and more particularly to a novel mechanical program lock and method of use thereof.
Background
The mechanical program lock (for short, the program lock) is a program lock which forces an operator to correctly operate the electrical equipment according to a set safe operation program, thereby avoiding misoperation of the electrical equipment and perfectly meeting the five-prevention requirement. The key of the conventional program lock is in a conventional tooth shape, and the repetition rate is low; in general, the key of the program lock is turned, and the key can be pulled out only after the lock tongue is fully extended. An utility model patent with publication number CN202273499U is a similar program lock.
The mechanical program lock has the advantages that the lock tongue is cylindrical, and can only be applied to a separation switch generally, but cannot be applied to a mesh door and a cabinet door to be used as a door lock, so that the application range of the mechanical program lock is limited, and a certain improvement space exists.
Disclosure of Invention
The first object of the utility model is to provide a novel mechanical program lock which can be applied to an isolating switch and can be also applied to a net door and a cabinet door as door locks.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the novel mechanical program lock comprises a program lock body, wherein the program lock body comprises a lock body and a lock tongue which is connected with the lock body in a telescopic way, the novel mechanical program lock further comprises a lock box and a door plugboard, the program lock body is arranged in a containing cavity of the lock box, and a baffle is arranged in the lock box to prevent the lock tongue from extending out; the side wall of the lock box is provided with a slot which is communicated with the lock box accommodating cavity for the insertion of the door plugboard; the door plugboard enters the containing cavity of the lock box through the slot to drive the baffle piece to displace and release the baffle piece from blocking the lock tongue; the novel mechanical program lock further comprises an elastic piece connected to the baffle piece so that the baffle piece has the trend of blocking the extension of the lock tongue; the door plugboard is penetrated with a limit hole for the bolt to extend out and penetrate through to lock the door plugboard in the lock box.
By adopting the scheme, the traditional mechanical program lock (namely the program lock body) which is only applicable to the isolating switch originally can be modified into the door lock which can be applied to the mesh door and the cabinet door of the switch cabinet or the transformer room by adding the components such as the lock box, the door plugboard, the baffle piece, the elastic piece and the like; the lock box of the novel mechanical program lock after modification is arranged on a door body of a switch cabinet or a transformer room, and a door plugboard is arranged on a door frame of the switch cabinet or the transformer room; when the door body is in a fully closed state, the door plugboard positioned on the door frame can be spliced in the slot of the lock box, at the moment, the door plugboard can overcome the elasticity of the elastic piece to push the baffle piece in the lock box open so as to release the baffle of the lock tongue, and the limiting hole is opposite to the end part of the lock tongue, so that a user can make the lock tongue extend out completely and splice in the limiting hole by rotating the key on the program lock body so as to lock the door plugboard, thereby completing the locking of the door body; the key can be pulled out from the program lock body at the moment so as to be applied to the next program lock; otherwise, if the door body is to be opened, the lock core of the program lock body is reversely rotated by the key, so that the lock tongue is pulled out of the limit hole, the locking of the door plugboard is released, the door body can be opened, and the door plugboard is driven to leave the slot; in the process, the baffle piece is reset under the action of the elastic force of the elastic piece and is blocked at the front end of the lock tongue again, so that the lock tongue cannot extend completely, and according to the characteristics of the program lock body, the key cannot be pulled out of the lock body, thereby avoiding misoperation; only when the door body is completely closed, the door plugboard is inserted into the slot of the lock box again, and the key can drive the lock tongue to extend out completely, so that the key can be pulled out; in addition, besides the door lock function of the novel mechanical program lock, the program lock body can be independently used as a traditional mechanical program lock; the traditional mechanical program lock (namely the program lock body) only needs to be modified through a simple structure to switch the application scene, so that the use cost is reduced, and the application range of the program lock is increased.
Preferably, the lock body is provided with a lock cylinder.
By adopting the scheme, the lock core is a main part for controlling the opening of the program lock body and is a core part which can rotate and drive the lock tongue to move in cooperation with a key.
Preferably, the baffle is a baffle arranged at the front side of the extending direction of the lock tongue, the plate surface of the baffle faces the movable end of the lock tongue, and the distance between the plate surface of the baffle and the side wall of the lock body is smaller than the length of the lock tongue when the lock tongue extends completely.
By adopting the scheme, the baffle has a simple structure, and can effectively block the lock tongue from extending completely so as to prevent the key on the lock body from being pulled out, thereby avoiding misoperation.
Preferably, the elastic piece is a spring piece connected between the baffle piece and the program lock body.
By adopting the scheme, the elastic sheet is simple in structure and small in occupied space, and the baffle piece can be effectively controlled to reset.
Preferably, the baffle member is further provided with an abutting member for abutting the door insert plate.
By adopting the scheme, the contact area between the end part of the door plugboard and the baffle piece can be increased by the abutting piece, so that the door plugboard inserted into the lock box can push the baffle piece more accurately, and meanwhile, the normal use of the baffle piece can not be hindered.
Preferably, the side wall of the lock box is extended with a connecting piece.
By adopting the scheme, the lock box can be stably fixed on an external door assembly through the connecting piece.
Preferably, the door insert plate is provided with an engagement member extending therefrom.
By adopting the scheme, the door plugboard can be stably installed on an external door assembly through the connecting piece.
Preferably, the end of the elastic piece far away from the baffle piece is provided with a connecting plate which is attached and fixed on the outer side wall of the lock body.
By adopting the scheme, the connecting plate can increase the contact area between the elastic piece and the lock body surface, thereby improving the connection stability between the elastic piece and the lock body surface.
Preferably, the plate surface of the elastic piece is provided with an avoidance groove for accommodating the lock cylinder.
By adopting the scheme, the elastic piece arranged on the lock body can not obstruct the normal use of the lock core, and is more humanized.
The second object of the present utility model is to provide a method for using a novel mechanical program lock, wherein the novel mechanical program lock can determine the opening and closing states of a door assembly, and if a door body is in an open state, a key on the mechanical program lock cannot be pulled out; otherwise, if the door body is in a completely closed state, the key on the mechanical program lock can be pulled out, so that the phenomenon of misoperation is avoided.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
a method of using a novel mechanical program lock, comprising the steps of:
step one, installing a novel mechanical program lock on a door component of a switch cabinet or a transformer room; wherein, the lock box in the novel mechanical program lock is arranged outside the door body of the switch cabinet or the transformer room, and the slot is exposed outside; the door plugboard is arranged on a door frame of the switch cabinet or the transformer room and corresponds to the slot;
step two, inserting a key corresponding to the program lock body into the lock cylinder, and rotating the key to enable the lock tongue to shrink, so that the lock tongue is pulled out from the limiting hole, and the locking of the door plugboard is released, and meanwhile, the key cannot be pulled out from the lock cylinder;
step three, opening a door body of a switch cabinet or a transformer room, wherein the door body drives a door plugboard to be pulled out of a slot so as to release the abutting pressure of a baffle piece, and the baffle piece resets under the elastic action of an elastic piece and is separated from the front side position of a movable end of a lock tongue so as to prevent the lock tongue from extending out and simultaneously prevent a key from being pulled out of a lock cylinder;
step four, closing a door body of the switch cabinet or the transformer room, wherein the door body drives the door plugboard to be reinserted into the slot, so that the end part of the door plugboard can enter the containing cavity of the lock box and overcome the elastic force of the elastic piece to push the blocking piece to force the movable end of the blocking piece and the movable end of the lock tongue to be staggered mutually, thereby releasing the blocking of the blocking piece on the lock tongue, and simultaneously, the limiting hole is opposite to the end part of the lock tongue;
fifthly, reversely rotating a key on the lock cylinder to enable the lock tongue to extend completely, and penetrating into the limit hole after the lock tongue extends so as to lock the door plugboard in the lock box;
and step six, pulling out the key from the lock cylinder.
By adopting the scheme, the modified novel mechanical program lock can be used as a door lock on a door component of a switch cabinet or a transformer room; meanwhile, the door lock can judge whether the door body on the door component is completely closed and complete locking; only when the door body of the switch cabinet or the transformer room is completely closed, the key can be rotated to enable the lock tongue to extend completely, so that the key can be pulled out from the lock cylinder to be used for the next procedure lock; otherwise, if the door body of the switch cabinet or the transformer room is not completely closed, or the lock tongue is not completely extended to lock the door body, the key cannot be pulled out from the lock core, and misoperation is avoided.
The utility model has the remarkable technical effects due to the adoption of the technical scheme:
1. by adding components such as a lock box, a door plugboard, a baffle piece, an elastic piece and the like, the traditional mechanical program lock (namely a program lock body) which is only applicable to the isolating switch originally can be modified into a door lock which can be applied to a mesh door and a cabinet door of a switch cabinet or a transformer room; the lock box of the novel mechanical program lock after modification is arranged on a door body of a switch cabinet or a transformer room, and a door plugboard is arranged on a door frame of the switch cabinet or the transformer room; when the door body is in a fully closed state, the door plugboard positioned on the door frame can be spliced in the slot of the lock box, at the moment, the door plugboard can overcome the elasticity of the elastic piece to push the baffle piece in the lock box open so as to release the baffle of the lock tongue, and the limiting hole is opposite to the end part of the lock tongue, so that a user can make the lock tongue extend out completely and splice in the limiting hole by rotating the key on the program lock body so as to lock the door plugboard, thereby completing the locking of the door body; the key can be pulled out from the program lock body at the moment so as to be applied to the next program lock; otherwise, if the door body is to be opened, the lock core of the program lock body is reversely rotated by the key, so that the lock tongue is pulled out of the limit hole, the locking of the door plugboard is released, the door body can be opened, and the door plugboard is driven to leave the slot; in the process, the baffle piece is reset under the action of the elastic force of the elastic piece and is blocked at the front end of the lock tongue again, so that the lock tongue cannot extend completely, and according to the characteristics of the program lock body, the key cannot be pulled out of the lock body, thereby avoiding misoperation; only when the door body is completely closed, the door plugboard is inserted into the slot of the lock box again, and the key can drive the lock tongue to extend out completely, so that the key can be pulled out; in addition, besides the door lock function of the novel mechanical program lock, the program lock body can be independently used as a traditional mechanical program lock; the traditional mechanical program lock (namely the program lock body) only needs to be modified through a simple structure to switch the application scene, so that the use cost is reduced, and the application range of the program lock is enlarged;
2. the modified novel mechanical program lock can be used as a door lock on a door component of a switch cabinet or a transformer room; meanwhile, the door lock can judge whether the door body on the door component is completely closed and complete locking; only when the door body of the switch cabinet or the transformer room is completely closed, the key can be rotated to enable the lock tongue to extend completely, so that the key can be pulled out from the lock cylinder to be used for the next procedure lock; otherwise, if the door body of the switch cabinet or the transformer room is not completely closed, or the lock tongue is not completely extended to lock the door body, the key cannot be pulled out from the lock core, and misoperation is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment;
FIG. 2 is a schematic diagram of a lock body according to the first embodiment;
FIG. 3 is a schematic view of a septum of the present embodiment;
FIG. 4 is a schematic diagram of a lock case according to the first embodiment;
fig. 5 is a schematic diagram of a lock box in the first embodiment;
fig. 6 is a first cross-sectional view of the second embodiment;
fig. 7 is a second cross-sectional view of the second embodiment;
fig. 8 is a third cross-sectional view of the second embodiment.
The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a program lock body; 2. a lock body; 3. a bolt; 4. a lock box; 5. a door insert plate; 6. a barrier; 7. a slot; 8. an elastic member; 9. a limiting hole; 10. a lock core; 11. an abutment; 12. a connecting piece; 13. a linking member; 14. a connecting plate; 15. an avoidance groove; 16. a key; 17. and a fixing hole.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 5, the novel mechanical program lock disclosed in this embodiment includes a program lock body 1, where the program lock body 1 includes a lock body 2 and a lock tongue 3 telescopically connected to the lock body 2, a lock cylinder 10 is disposed on the lock body 2, the lock cylinder 10 is a main part for controlling the opening of the program lock body 1, and is a core part matched with a key 16 and capable of rotating and driving the lock tongue 3 to move; the structure of the lock body 2, the lock tongue 3 and the lock core 10, which are matched with each other, belongs to common knowledge in the art, and is not described herein.
Furthermore, the novel mechanical program lock further comprises a lock box 4 and a door plugboard 5, the program lock body 1 is arranged in the cavity of the lock box 4, the lock body 2 is fixed at the bottom of the cavity of the lock box 4 through screws, and the lock tongue 3 is positioned in the lock box 4. A baffle 6 is also arranged in the lock box 4 to block the extension of the lock tongue 3; in this embodiment, the baffle member 6 is a baffle plate disposed at a front side of the extension direction of the lock tongue 3, the plate surface of the baffle plate faces the movable end of the lock tongue 3, and the distance between the plate surface of the baffle plate and the side wall of the lock body 2 is smaller than the length of the lock tongue 3 when it extends completely; when the lock tongue 3 extends a certain distance, the end part of the lock tongue can be abutted against the plate surface of the baffle 6, so that the lock tongue 3 is prevented from extending completely; when the lock tongue 3 is not fully extended, the key 16 on the lock cylinder 10 cannot be pulled out; only after the bolt 3 is fully extended, the key 16 can be smoothly pulled out of the lock cylinder 10.
Furthermore, the side wall of the lock case 4 is provided with a slot 7 which is communicated with the cavity of the lock case 4 for the insertion of the door plugboard 5, and the position of the slot 7 can be adjusted according to the relative position of the lock case 4 when being matched with the door plugboard 5, which is not limited herein. In this embodiment, the slot 7 is preferably disposed at the bottom of the cavity of the lock case 4 and near one side of the lock tongue 3. The door plugboard 5 enters the containing cavity of the lock box 4 through the slot 7 to drive the baffle 6 to displace and release the blocking of the baffle 6 to the lock tongue 3; the barrier 6 is further provided with an abutment 11 against which the door insert 5 abuts, the abutment 11 being provided integrally with the barrier 6, with its side facing the movable end of the door insert 5 when it is inserted into the lock case 4. The door plugboard 5 is penetrated with a limit hole 9 through which the lock tongue 3 extends and passes to lock the door plugboard 5 in the lock box 4, when the door plugboard 5 pushes the baffle 6 to displace to release the lock of the lock tongue 3, the limit hole 9 on the door plugboard 5 can replace the position of the baffle 6 before, so that the lock tongue 3 can extend completely through the limit hole 9 and lock the door plugboard 5 in the lock box 4, and simultaneously, the key 16 on the lock core 10 can be pulled out smoothly.
Furthermore, the novel mechanical program lock further comprises an elastic piece 8 connected to the baffle piece 6 so that the baffle piece 6 has a trend of blocking the extension of the lock tongue 3; the elastic member 8 is a spring plate connected between the baffle member 6 and the program lock body 1, and is preferably made of an elastic material, such as steel, copper alloy, etc., so that the elastic member has better elasticity. The end of the elastic member 8 away from the baffle member 6 is provided with a connecting plate 14 which is attached and fixed to the outer side wall of the lock body 2, and the connecting plate 14 is preferably fixed to the outer side wall of the lock body 2 by a screw, i.e. a fixing hole 17 through which the screw passes and is fixed to the outer side wall of the lock body 2 is formed in the connecting plate 14. The plate surface of the elastic member 8 is provided with an avoidance groove 15 for accommodating the lock cylinder 10, and the shape and position of the avoidance groove 15 can be adjusted according to the shape of the lock cylinder 10 and the position of the lock cylinder 10 on the lock body 2, which is not limited herein.
Further, the side wall of the lock case 4 is extended with two connecting pieces 12, and the two connecting pieces 12 are symmetrically arranged at two sides of the lock case 4. Each of the connection members 12 is plate-shaped, integrally connected to the opening edge of the lock case 4, and perpendicular to the side surface of the lock case 4. And each of the connection members 12 may be fixed to the outside by screws.
Furthermore, the door insert 5 is extended with a connecting piece 13, and the connecting piece 13 is preferably plate-shaped and integrally connected to the door insert 5, and the relative bending angle between the door insert 5 and the door insert 5 can be adjusted according to the actual installation position of the door insert 5, which is not limited herein. And the engagement piece 13 may be fixed to the outside by a screw.
Example two
As shown in fig. 6, 7 and 8, based on the first embodiment, the method for using a novel mechanical program lock disclosed in this embodiment includes the following steps:
step one, installing a novel mechanical program lock on a door assembly of a switch cabinet or a transformer room, wherein the door assembly comprises a door body and a door frame, and the door body and the door frame are not shown in the figure; wherein, the lock box 4 in the novel mechanical program lock is arranged outside the door body of the switch cabinet or the transformer room, and the slot 7 is exposed outside; the door plugboard 5 is arranged on a door frame of the switch cabinet or the transformer room and corresponds to the slot 7; when the door body is in a closed state, the door plugboard 5 positioned at the door frame is spliced in the slot 7 of the lock box 4, and the lock tongue 3 in the lock body 2 is in a fully extended state and penetrates through the limit hole 9 so as to lock the door plugboard 5, thereby locking the door body;
step two, when the door body needs to be opened, inserting a key 16 corresponding to the program lock body 1 into the lock cylinder 10, and rotating the key 16 to shrink the lock tongue 3, so that the lock tongue 3 is pulled out from the limiting hole 9, thereby unlocking the door plugboard 5, and simultaneously, the key 16 cannot be pulled out from the lock cylinder 10; at this time, the locking between the door body and the door frame is correspondingly released;
step three, opening a door body of a switch cabinet or a transformer room, wherein the door body drives a door plugboard 5 to be pulled away from a slot 7 so as to release the pressing of a baffle piece 6, and the baffle piece 6 resets under the elastic action of an elastic piece 8 and is blocked at the front side position of the movable end of a lock tongue 3 so as to prevent the lock tongue 3 from extending out and simultaneously prevent a key 16 from being pulled out of a lock cylinder 10;
step four, closing a door body of a switch cabinet or a transformer room, wherein the door body drives a door plugboard 5 to be reinserted into a slot 7, so that the end part of the door plugboard 5 can enter a containing cavity of a lock box 4 and push a blocking piece 6 against the elastic force of an elastic piece 8, the blocking piece 6 and the movable end of a lock tongue 3 are forced to be staggered mutually, thereby releasing the blocking of the blocking piece 6 to the lock tongue 3, and simultaneously, a limiting hole 9 is opposite to the end part of the lock tongue 3;
step five, reversely rotating a key 16 on the lock cylinder 10 to enable the lock tongue 3 to extend completely, and penetrating into the limit hole 9 after the lock tongue 3 extends so as to lock the door plugboard 5 in the lock box 4, thereby locking the door body and enabling the door body not to be opened;
step six, the key 16 is pulled out from the lock cylinder 10 to use the key 16 as a next program lock.
Example III
On the basis of the first embodiment, the connecting plate 14 and the lock body 2 share the same set of screws to be fixed at the bottom of the lock box 4, so that the number of parts can be reduced, the cost can be saved, the space utilization rate of the lock box 4 can be increased, and the space layout is more reasonable.
Claims (10)
1. The utility model provides a novel mechanical program lock, includes program lock body (1), and program lock body (1) include lock body (2) and telescopic connection in spring bolt (3) of lock body (2), its characterized in that: the novel mechanical program lock further comprises a lock box (4) and a door plugboard (5), the program lock body (1) is arranged in a containing cavity of the lock box (4), and a baffle piece (6) is arranged in the lock box (4) to prevent the lock tongue (3) from extending out; the side wall of the lock box (4) is provided with a slot (7) which is communicated with the accommodating cavity of the lock box (4) for the insertion of the door plugboard (5); the door plugboard (5) enters the containing cavity of the lock box (4) through the slot (7) to drive the baffle (6) to displace and release the blocking of the baffle (6) to the lock tongue (3); the novel mechanical program lock further comprises an elastic piece (8) connected to the baffle piece (6) so that the baffle piece (6) has the function of blocking the extending trend of the lock tongue (3); the door plugboard (5) is penetrated with a limit hole (9) for the bolt (3) to extend and penetrate so as to lock the door plugboard (5) in the lock box (4).
2. The novel mechanical program lock of claim 1, wherein: the lock body (2) is provided with a lock core (10).
3. The novel mechanical program lock of claim 1, wherein: the baffle (6) is a baffle arranged at the front side of the extension direction of the lock tongue (3), the plate surface of the baffle faces the movable end of the lock tongue (3), and the distance between the plate surface of the baffle and the side wall of the lock body (2) is smaller than the length of the lock tongue (3) when the lock tongue is completely extended.
4. The novel mechanical program lock of claim 1, wherein: the elastic piece (8) is a spring piece connected between the baffle piece (6) and the program lock body (1).
5. The novel mechanical program lock of claim 1, wherein: the baffle (6) is also provided with an abutting piece (11) for abutting the door plugboard (5).
6. The novel mechanical program lock of claim 1, wherein: the side wall of the lock box (4) is extended with a connecting piece (12).
7. The novel mechanical program lock of claim 1, wherein: the door plugboard (5) is extended with a connecting piece (13).
8. The novel mechanical program lock of claim 2, wherein: the end part of the elastic piece (8) far away from the baffle piece (6) is provided with a connecting plate (14) which is attached and fixed on the outer side wall of the lock body (2).
9. The novel mechanical program lock of claim 8, wherein: the plate surface of the elastic piece (8) is provided with an avoidance groove (15) for accommodating the lock cylinder (10).
10. A method of using a novel mechanical program lock according to any one of claims 2 to 9, wherein: the method comprises the following steps:
step one, installing a novel mechanical program lock on a door component of a switch cabinet or a transformer room; the novel mechanical program lock comprises a lock box (4) arranged on the outer side of a door body of a switch cabinet or a transformer room, and a slot (7) exposed outside; the door plugboard (5) is arranged on a door frame of the switch cabinet or the transformer room and corresponds to the slot (7);
step two, inserting a key (16) corresponding to the program lock body (1) into the lock cylinder (10) and rotating the key (16) to enable the lock tongue (3) to shrink, so that the lock tongue (3) is pulled out of the limiting hole (9), the locking of the door plugboard (5) is released, and meanwhile, the key (16) cannot be pulled out of the lock cylinder (10);
step three, opening a door body of a switch cabinet or a transformer room, wherein the door body drives a door plugboard (5) to be pulled away from a slot (7) so as to release the abutting pressure of a baffle piece (6), and the baffle piece (6) resets under the elastic action of an elastic piece (8) and is blocked at the front side position of the movable end of a lock tongue (3) so as to prevent the lock tongue (3) from extending out and simultaneously prevent a key (16) from being pulled out of a lock cylinder (10);
step four, closing a door body of a switch cabinet or a transformer room, wherein the door body drives a door plugboard (5) to be reinserted into a slot (7), so that the end part of the door plugboard (5) can enter a containing cavity of a lock box (4) and overcome the elastic force of an elastic piece (8) to push a blocking piece (6), the blocking piece (6) and the movable end of a lock tongue (3) are forced to be misplaced mutually, the blocking of the blocking piece (6) to the lock tongue (3) is released, and meanwhile, a limiting hole (9) is opposite to the end part of the lock tongue (3);
fifthly, reversely rotating a key (16) on the lock cylinder (10) to enable the lock tongue (3) to extend completely, and enabling the lock tongue (3) to penetrate through the limiting hole (9) after extending so as to lock the door plugboard (5) in the lock box (4);
and step six, pulling out the key (16) from the lock cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795315.2A CN110512946B (en) | 2019-08-27 | 2019-08-27 | Novel mechanical program lock and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795315.2A CN110512946B (en) | 2019-08-27 | 2019-08-27 | Novel mechanical program lock and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110512946A CN110512946A (en) | 2019-11-29 |
| CN110512946B true CN110512946B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910795315.2A Active CN110512946B (en) | 2019-08-27 | 2019-08-27 | Novel mechanical program lock and use method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113812778B (en) * | 2021-04-27 | 2023-07-21 | 广州国保科技有限公司 | Deposit cabinet |
| CN114109150B (en) * | 2021-11-19 | 2022-07-26 | 法瑞电气(南通)有限公司 | Interlocking device of cabinet body and door |
| CN115642044B (en) * | 2022-12-09 | 2023-03-10 | 宁波耐森电气科技有限公司 | Mechanical interlocking device and power equipment |
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| GB2103697A (en) * | 1981-07-09 | 1983-02-23 | Astra Security Lock And Safe C | Key-retaining lock |
| DE3563466D1 (en) * | 1984-01-16 | 1988-07-28 | Neiman Sa | Cylinder lock with means for preventing the key from being removed from the lock |
| CN1165423A (en) * | 1997-04-01 | 1997-11-19 | 电力工业部电力自动化研究院 | Fixed encode anti-error lock |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110512946A (en) | 2019-11-29 |
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