CN110512946B - Novel mechanical program lock and use method thereof - Google Patents

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

Novel Mechanical Program Lock and Its Application Method

technical field

The invention relates to electrical switchgear, in particular to a novel mechanical program lock and a method for using the same.

Background technique

The mechanical program lock (referred to as the program lock) is to force the operator to operate the electrical equipment correctly in accordance with the established safety operation procedures, so as to avoid misoperation of the electrical equipment, and to meet the "five preventions" requirements more perfectly. The key of the common program lock is a conventional tooth shape, and the repetition rate is low; usually, the key of the program lock is turned, and the key can only be pulled out after the dead bolt is fully extended. The utility model patent whose notification number is CN202273499U is exactly a kind of similar program lock.

However, the above-mentioned mechanical program lock has a cylindrical lock tongue, which can only be applied to isolating switches, but cannot be applied to net doors and cabinet doors as door locks, which limits the scope of application, so there is still room for improvement. .

Contents of the invention

The first purpose of the present invention is to provide a new type of mechanical program lock, which can be used not only for isolating switches, but also for net doors and cabinet doors as door locks.

In order to solve the above technical problems, the present invention is solved through the following technical solutions:

A new type of mechanical program lock, including a program lock body, the program lock body includes a lock body and a bolt telescopically connected to the lock body, the new mechanical program lock also includes a lock box and a door plate, the program lock body is installed in the container of the lock box In the cavity, the lock box is provided with a partition to prevent the lock tongue from protruding; the side wall of the lock box is provided with a slot connected to the lock box cavity for the insertion of the door plate; the door plate enters the lock through the slot. The cavity of the box is used to drive the displacement of the barrier and release the blocking of the lock tongue by the barrier; the new mechanical program lock also includes an elastic part connected to the barrier so that the barrier has a tendency to block the extension of the bolt; the door A limit hole for the dead bolt to extend and pass through the plug plate is used to lock the door plug plate in the lock box.

With the above scheme, by adding lock boxes, door panels, barriers, elastic parts and other components, the traditional mechanical program lock (that is, the program lock body) originally only suitable for isolating switches can be converted into one that can be applied to switch cabinets or transformers. The door lock on the net door and cabinet door of the room; the lock box of the modified new mechanical program lock is installed on the door body of the switch cabinet or transformer room, and the door plate is installed on the door frame of the switch cabinet or transformer room; when the door When the body is in a fully closed state, the door plate on the door frame can be plugged into the slot of the lock box. At this time, the door plate can overcome the elastic force of the elastic piece and push the barrier in the lock box to release the lock. The tongue is blocked, and the limit hole is facing the end of the lock tongue, so that the user can fully extend the lock tongue by turning the key on the program lock body and plug it into the limit hole to lock the door plate , so as to complete the door lock; at this time, the key can be pulled out from the program lock body to apply the key to the next program lock; on the contrary, to open the door, use the key to reversely turn the lock cylinder of the program lock body, In order to pull the lock tongue away from the limit hole, thereby releasing the locking of the door plate, so that the door body can be opened, thereby driving the door plate to leave the slot; during this process, the barrier is under the elastic force of the elastic Reset and block the front end of the lock tongue again so that the lock tongue cannot be fully extended. According to the characteristics of the program lock body, the key cannot be pulled out from the lock body to avoid misoperation; Only when the door plate is inserted into the slot of the lock box again can the key be driven to fully extend the dead bolt so that the key can be pulled out; in addition, in addition to the "door lock" function of the new mechanical program lock mentioned above, the program lock body is also It can be used alone as a traditional mechanical program lock; the traditional mechanical program lock (that is, the program lock body) only needs to switch its application scenarios through simple structural modification, which not only reduces the cost of use, but also increases the scope of application of the program lock.

Preferably, the lock body is provided with a lock cylinder.

With the above scheme, the lock cylinder is the main part that controls the opening of the program lock body, and is the core part that can be rotated and drives the movement of the deadbolt when matched with the key.

Preferably, the baffle is a baffle arranged at the front side of the lock tongue extension direction, the plate surface of the baffle is facing 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 that of the lock body. The length of the tongue when fully extended.

By adopting the above solution, the baffle plate has a simple structure, and can effectively prevent the lock tongue from fully extending, so as to prevent the key on the lock body from being pulled out, thereby avoiding misoperation.

Preferably, the elastic member is an elastic piece connected between the blocking member and the program lock body.

With the above solution, the shrapnel has a simple structure and takes up little space, and can effectively control the reset of the blocking member.

Preferably, the blocking member is also provided with an abutting piece for the door panel to abut against.

With the above solution, the abutting piece can increase the contact area between the end of the door plate and the barrier, so that the door plate inserted into the lock box can push the barrier more accurately without hindering the barrier normal use.

Preferably, the side wall of the lock box is extended with a connecting piece.

By adopting the above solution, the lock box can be stably fixed on the external door assembly through the connecting piece.

Preferably, a connecting piece is extended on the door panel.

By adopting the above solution, the door plate can be stably installed on the external door assembly through the connecting piece.

Preferably, the end of the elastic member away from the barrier is provided with a connecting plate that is attached and fixed to the outer wall of the lock body.

With the above solution, the connecting plate can increase the contact area between the elastic member and the surface of the lock body, thereby improving the stability of the connection between the two.

Preferably, the plate surface of the elastic member is provided with an escape groove for accommodating the lock cylinder.

By adopting the above solution, the elastic member installed on the lock body will not hinder the normal use of the lock cylinder, which is more humanized.

The second object of the present invention is to provide a method for using a novel mechanical program lock. The novel mechanical program lock can judge the opening and closing state of the door assembly. If the door is in an open state, the key on the mechanical program lock cannot be pulled out; otherwise , if the door body is completely closed, the key on the mechanical program lock can be pulled out, so as to avoid misoperation.

In order to solve the above technical problems, the present invention is solved through the following technical solutions:

A method for using a novel mechanical program lock, comprising the following steps:

Step 1. Install the new mechanical program lock on the door assembly of the switch cabinet or transformer room; wherein, the lock box in the new mechanical program lock is installed on the outside of the door body of the switch cabinet or transformer room, and the slot is exposed; the door The plugboard is installed on the door frame of the switch cabinet or transformer room and corresponds to the slot;

Step 2. Insert the key corresponding to the program lock body into the lock cylinder and turn the key to shrink the lock tongue, so that the lock tongue is pulled away from the limit hole, thereby unlocking the door plate, and the key cannot be pulled out from the lock cylinder out;

Step 3: Open the door body of the switchgear or transformer room, and the door body drives the door plate to pull out the slot to release the pressure on the partition, and the partition resets under the elastic force of the elastic part and blocks it from the lock. The position on the front side of the movable end of the tongue to prevent the bolt from protruding and prevent the key from being pulled out of the lock cylinder at the same time;

Step 4: Close the door body of the switch cabinet or transformer room, and the door body drives the door plate to be reinserted into the slot, so that the end of the door plate can enter the cavity of the lock box and overcome the elastic force of the elastic member to push the barrier Parts, forcing the movable end of the blocking piece and the deadbolt to displace each other, thereby releasing the blocking of the blocking piece on the deadbolt, and at the same time, the limiting hole is facing the end of the deadbolt;

Step 5. Turn the key on the lock cylinder in the opposite direction so that the lock tongue is fully extended. After the lock tongue is extended, it is inserted into the limit hole to lock the door plate in the lock box;

Step 6. Pull out the key from the lock cylinder.

With the above scheme, the modified new mechanical program lock can be used as a "door lock" on the door assembly of the switch cabinet or transformer room; at the same time, the "door lock" can judge whether the door body on the door assembly is completely closed and completed Locking; only when the door of the switchgear or transformer room is completely closed, the key can be turned so that the deadbolt is fully extended, so that the key can be pulled out from the lock cylinder to use the key for the next program lock; otherwise , If the door of the switchgear or transformer room is not fully closed, or the deadbolt is not fully extended to lock the door, the key cannot be pulled out from the lock cylinder to avoid misoperation.

The present invention has remarkable technical effect owing to adopted above technical scheme:

1. By adding lock boxes, door panels, barriers, elastic parts and other components, the traditional mechanical program lock (that is, the program lock body) that was originally only suitable for isolating switches can be converted into one that can be applied to switch cabinets or transformer rooms. The door lock on the net door and cabinet door; the lock box of the modified new mechanical program lock is installed on the door body of the switch cabinet or transformer room, and the door plate is installed on the door frame of the switch cabinet or transformer room; when the door body is in When fully closed, the door plate on the door frame can be plugged into the slot of the lock box. At this time, the door plate can overcome the elastic force of the elastic member and push the barrier in the lock box to release the lock on the lock tongue. Block, and make the limit hole facing the end of the lock tongue, so that the user can fully extend the lock tongue by turning the key on the program lock body and plug it into the limit hole to lock the door plate, so that The door body is locked; at this time, the key can be pulled out from the program lock body to apply the key to the next program lock; conversely, to open the door body, use the key to reversely turn the lock core of the program lock body so that The deadbolt is pulled away from the limit hole, thereby releasing the locking of the door plate, so that the door body can be opened, thereby driving the door plate to leave the slot; during this process, the barrier is reset under the elastic force of the elastic piece Re-block the front end of the lock tongue so that the lock tongue cannot be fully extended. According to the characteristics of the program lock body, the key cannot be pulled out from the lock body to avoid misuse; only when the door body is completely closed, the door can be inserted Only when the key is inserted into the slot of the lock box again can the key be driven to fully extend the dead bolt so that the key can be pulled out; in addition, in addition to the "door lock" function of the above-mentioned new mechanical program lock, the program lock body can be used independently Used as a traditional mechanical program lock; the traditional mechanical program lock (that is, the program lock body) only needs to switch its application scenarios through simple structural modification, which not only reduces the cost of use, but also increases the scope of application of the program lock;

2. The modified new mechanical program lock can be used as a "door lock" on the door assembly of the switch cabinet or transformer room; at the same time, the "door lock" can judge whether the door body on the door assembly is completely closed and locked ;Only when the door of the switchgear or transformer room is completely closed, the key can be turned so that the deadbolt is fully stretched out, so that the key can be pulled out from the lock cylinder to use the key for the next program lock; on the contrary, if The door of the switchgear or transformer room is not fully closed, or the lock tongue is not fully extended to lock the door, and the key cannot be pulled out from the lock cylinder to avoid misoperation.

Description of drawings

Fig. 1 is the structural representation of present embodiment one;

Fig. 2 is a schematic structural diagram of the program lock body in the first embodiment;

Fig. 3 is a structural schematic diagram of a barrier member in the first embodiment;

Fig. 4 is a structural schematic diagram 1 of the lock box in the present embodiment 1;

Fig. 5 is the second structural diagram of the lock box in the first embodiment;

Fig. 6 is the first cross-sectional view of the second embodiment;

Fig. 7 is the second cross-sectional view of the second embodiment;

FIG. 8 is the third cross-sectional view of the second embodiment.

The names of the parts indicated by the numbers in the above drawings are as follows: 1. Program lock body; 2. Lock body; 3. Lock bolt; 4. Lock box; Slot; 8. Elastic part; 9. Limit hole; 10. Lock cylinder; 11. Abutting piece; 12. Connecting piece; 13. Connecting piece; 14. Connecting plate; 15. Avoidance groove; 16. Key; 17 , Fixed hole.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment one

As shown in Figures 1 to 5, a new type of mechanical program lock disclosed in this embodiment includes a program lock body 1. The program lock body 1 includes a lock body 2 and a bolt 3 telescopically connected to the lock body 2. The lock body 2 A lock cylinder 10 is arranged on it, and the lock cylinder 10 is the main part that controls the opening of the program lock body 1, and is the core part that is matched with the key 16 and can rotate and drive the movement of the lock tongue 3; wherein, the lock body 2, the lock tongue 3 and the lock cylinder 10 The structure of the cooperation of the three belongs to the common knowledge in the field, and will not be repeated here.

Further, the new mechanical program lock also includes a lock box 4 and a door plate 5, the program lock body 1 is installed 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 by screws, and the lock The tongue 3 is located inside the lock box 4 . The lock box 4 is also provided with a barrier 6 to prevent the bolt 3 from stretching out; in the present embodiment, the barrier 6 is a baffle arranged on the front side of the direction in which the bolt 3 protrudes, and the surface of the baffle faces The movable end of the dead bolt 3, and the distance between the plate surface of the baffle plate and the side wall of the lock body 2 is less than the length when the dead bolt 3 is fully stretched out; so that when the dead bolt 3 stretches out a certain distance, its end can resist Connected to the plate surface where the partition member 6 is located, thereby preventing the lock tongue 3 from fully extending; when the lock tongue 3 is not fully extended, the key 16 on the lock cylinder 10 cannot be pulled out; only when the lock tongue 3 is fully extended, the key 16 just can be pulled out smoothly from lock cylinder 10.

Furthermore, the side wall of the lock box 4 is provided with a slot 7 connected to the cavity of the lock box 4 for the plugging of the door plate 5. The position of the slot 7 can be adjusted according to the lock box 4 and the door plate 5 Adjust the relative position, which is not limited here. In this embodiment, the slot 7 is preferably disposed at the bottom of the cavity of the lock box 4 and near the side of the lock tongue 3 . The door plate 5 enters the cavity of the lock box 4 through the slot 7 to drive the barrier 6 to displace and remove the barrier 6 to the dead bolt 3; The abutting piece 11 is provided integrally with the barrier piece 6, and its side faces to the movable end when the door plate 5 is inserted into the lock box 4. The door plate 5 runs through a limit hole 9 for the lock tongue 3 to extend and pass through to lock the door plate 5 in the lock box 4. When the door plate 5 pushes the barrier 6 to move to release the locking bolt. 3, the limit hole 9 on the door plate 5 can replace the previous position of the barrier 6, so that the deadbolt 3 can be fully extended through the limit hole 9, and the door plate 5 is locked in the lock box 4, the key 16 on the lock cylinder 10 can be pulled out smoothly simultaneously.

Furthermore, the new mechanical program lock also includes an elastic member 8 connected to the barrier 6 so that the barrier 6 has a tendency to block the extension of the lock tongue 3; the elastic member 8 is connected to the barrier 6 and the program lock body 1 The elastic pieces between them are preferably made of elastic materials, such as steel, copper alloy, etc., so they have better elasticity. The end of the elastic member 8 away from the barrier member 6 is provided with a connecting plate 14 that is fitted and fixed on the outer wall of the lock body 2. The connecting plate 14 is preferably fixed to the outer wall of the lock body 2 by screws, that is, the connecting plate 14 is provided with a The fixing hole 17 for the screw to pass through and be fixed on the outer wall of the lock body 2 . The plate surface of the elastic member 8 is provided with an avoidance groove 15 for the lock core 10 to be accommodated. The shape and position of the escape groove 15 can be adjusted according to the shape of the lock core 10 and the position of the lock core 10 on the lock body 2. This is not limited.

Furthermore, the side wall of the lock box 4 is extended with connecting pieces 12 , and there are two connecting pieces 12 , which are symmetrically arranged on both sides of the lock box 4 . Each connecting piece 12 is in the shape of a plate, which is integrally connected to the edge of the opening of the lock box 4 and perpendicular to the side of the lock box 4 . And each connecting piece 12 can be fixed on the outside by screws.

Furthermore, there is an engaging piece 13 extending on the door plate 5, and the connecting piece 13 is also preferably in the shape of a plate, which is integrally connected to the door plate 5, and can be adjusted according to the actual installation position of the door plate 5. The relative bending angle between the boards 5 is not limited here. And the connecting piece 13 can be fixed on the outside by screws.

Embodiment two

As shown in Figure 6, Figure 7 and Figure 8, on the basis of Embodiment 1, the method for using a new type of mechanical program lock disclosed in this embodiment includes the following steps:

Step 1. Install the new mechanical program lock on the door assembly of the switch cabinet or transformer room. The door assembly includes a door body and a door frame, which are not shown in the figure; wherein, the lock box 4 in the new mechanical program lock is installed on the switch The outside of the door body of the cabinet or transformer room, and the slot 7 is exposed; the door plate 5 is installed on the door frame of the switch cabinet or transformer room and corresponds to the slot 7; when the door is closed, it is located on the door frame The door plate 5 is plugged into the slot 7 of the lock box 4. At this time, the dead bolt 3 in the lock body 2 is in a fully extended state, and is inserted in the limit hole 9 to lock the door plate 5. thereby locking the door;

Step 2. When it is necessary to open the door body, insert the key 16 corresponding to the program lock body 1 into the lock cylinder 10 and turn the key 16 to shrink the deadbolt 3, so that the deadbolt 3 is pulled away from the limiting hole 9, thereby releasing the key. To lock the door plate 5, the key 16 cannot be pulled out from the lock cylinder 10; at this time, the lock between the door body and the door frame is also correspondingly released;

Step 3: Open the door body of the switchgear or the transformer room, the door body drives the door plate 5 to be pulled away from the slot 7, so as to release the pressure on the barrier member 6, and the barrier member 6 resets under the elastic force of the elastic member 8 And block the front side position of the movable end of the dead bolt 3, to prevent the dead bolt 3 from stretching out, and prevent the key 16 from being pulled out from the lock cylinder 10;

Step 4: Close the door body of the switch cabinet or the transformer room, and the door body drives the door plate 5 to be reinserted into the slot 7, so that the end of the door plate 5 can enter the cavity of the lock box 4 and overcome the elastic member 8 The elastic force pushes the barrier 6, forcing the movable end of the barrier 6 and the lock tongue 3 to displace each other, thereby releasing the barrier of the barrier 6 to the lock tongue 3, and at the same time, the limit hole 9 is facing the end of the lock tongue 3 ;

Step 5: reversely turn the key 16 on the lock cylinder 10 so that the dead bolt 3 is fully stretched out, and after the dead bolt 3 stretches out, it is inserted into the limit hole 9 to lock the door plate 5 in the lock box 4, thereby Lock the door so that the door cannot be opened;

Step 6, pull out the key 16 from the lock cylinder 10 to use the key 16 as the next program lock.

Embodiment Three

On the basis of Embodiment 1, the connecting plate 14 and the lock body 2 share the same set of screws and are fixed on the bottom of the lock box 4, which can not only reduce the number of parts, save costs, but also increase the space utilization rate of the lock box 4, making the space layout more convenient. 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).