CN203514976U - Deadbolt lock and its key - Google Patents

Abstract

The utility model discloses a fixed lock of keeper formula and key thereof, the fixed lock includes: a lock body; the lock bolt is provided with a lock tongue part at one end and a pressing part at the other end, and a first limiting groove is formed in the outer peripheral surface of the lock bolt; the first elastic component is used for driving the lock bolt to move from the locking position to the unlocking position; the first locking shaft is arranged in the lock body in a reciprocating manner, one end of the first locking shaft is provided with a first limiting bulge, and a first driven part is arranged on the first locking shaft; the head end of the unlocking shaft is provided with a first driving part, and the tail end of the unlocking shaft is provided with a second driven part which is matched with a second driving part at the end part of the key and transmits torque; one end of the limiting pin extends into the unlocking hole above the unlocking shaft. The utility model discloses a fixed lock of keeper formula, the key can't take out after the unblock, and the key just can be tak away after only shutting again at fixed lock to having avoided the unblock back key to omit in the cabinet door, guaranteed moreover that unblock and shutting flow are correct and make things convenient for unblock and shutting operation.

Description

Deadbolt lock and its key

technical field

The utility model relates to a lock, in particular to a bolt type fixed lock and a key thereof.

Background technique

The five-prevention locking system is a control system for my country's power system to prevent switching misoperations during power transmission and distribution in power plants and substations. Open and close the knife switch with load, prevent the live wire from hanging the ground wire, and prevent the knife switch from being connected with the ground wire. Over the years, switching misoperations have repeatedly caused serious accidents in the power system, especially for the misoperation of connecting the live wire to the ground wire and closing the switch with the ground wire. Since the ground wire is installed to protect the safety of the electrical equipment maintenance personnel during operation, if the ground wire is installed in the wrong position, it will not be able to protect the personnel; at the same time, if the ground wire is not removed in time after the electrical equipment maintenance is completed, the It will cause a vicious accident of closing the knife switch with the ground wire, so preventing the misoperation of hanging the ground wire with the live wire and closing the knife switch with the ground wire is one of the keys to the safe operation of the power transformation and distribution.

At present, the operating equipment is usually placed in the switch cabinet, and the cabinet door is locked with a padlock or a fixed lock. Commonly used padlocks or fixed locks can be taken off after the key is unlocked, which causes the key to be easily missed in the cabinet door. For the relatively large computer key, it is inconvenient to carry it in the hand after taking it off.

Contents of the invention

Aiming at the current state of the art above, the technical problem to be solved by this utility model is to provide a deadbolt type fixed lock, the key of which cannot be taken out after unlocking, and can only be taken away after re-locking. Another technical problem to be solved by the utility model is to provide a key for the bolt type fixed lock.

In order to solve the above technical problems, a bolt type fixed lock provided by the utility model includes:

The lock body is provided with an unlocking hole;

The lock bolt is arranged in the lock body so as to move back and forth between the locked position and the unlocked position. One end of the lock bolt has a tongue portion, and the other end has a pressing portion. When the lock bolt is in the locked position, the The lock tongue part protrudes from the first through hole on the side of the lock body, the pressing part protrudes out of the lock body, and the outer peripheral surface of the lock bolt is provided with a first limiting groove;

a first elastic component, configured to drive the lock bolt to move from the locked position to the unlocked position;

The first locking shaft is arranged in the lock body so as to move back and forth in the vertical direction of the lock bolt axis, and one end of the first locking shaft is provided with a first stop that cooperates with the first stop groove When the locking bolt is in the locked position, the first limiting protrusion is opposite to the first limiting groove, and is snapped into the first limiting groove under the action of the second elastic member. In the groove, a first driven part is arranged on the first locking shaft;

The unlocking shaft is rotatably arranged at the bottom of the unlocking hole, the first end of the unlocking shaft is provided with a first drive part matched with the first driven part, and the tail end of the unlocking shaft is provided with a key end The second driven part cooperates with and transmits the torque to the second driven part;

One end of the limiting pin extends into the unlocking hole above the unlocking shaft. When the key is inserted into the unlocking hole, the limiting pin can slide in the guide groove on the key.

In one of the embodiments, the first driven part is a U-shaped groove provided on the first locking shaft, and the first driving part is an eccentric shaft provided on the end face of the head end of the unlocking shaft, The eccentric shaft is inserted into the U-shaped groove.

In one of the embodiments, the second driven part is an in-line protrusion provided on the end surface of the tail end of the unlocking shaft.

In one of the embodiments, the first elastic member is a spring, and the spring is sleeved on the outside of the lock bolt.

In one of the embodiments, the pressing part is provided with a locking button.

In one of the embodiments, a second limiting groove is provided on the outer peripheral surface of the locking bolt, and the fixed lock also includes a second locking shaft and a driving pin, and the second locking shaft can be positioned on the lock. The bolt axis moves back and forth in the lock body in the vertical direction of the bolt axis, and one end of the second locking shaft is provided with a second limit protrusion that cooperates with the second limit groove. When the lock bolt is unlocked position, the second limiting protrusion is opposite to the second limiting groove, and is snapped into the second limiting groove under the action of the third elastic member, and the second locking shaft A third driven part is provided;

The driving bolt is telescopically arranged in the lock body, and one end of the driving bolt is provided with a third driving part that cooperates with the third driven part, and the other end is provided with a pressing part, and the pressing part is separated from the third driven part. The second through hole on the side of the lock body protrudes, and when the extruding part is forced to contract, the third driving part cooperates with the third driven part to drive the second locking axially away from the lock bolt. direction movement.

In one of the embodiments, the second through hole and the first through hole are disposed on the same side of the lock body.

In one of the embodiments, the third driving part is a wedge provided at the end of the driving pin, and the third driven part is a wedge provided on the second locking shaft and connected to the wedge. Inclined surfaces to match.

The key of the above-mentioned deadbolt type fixed lock provided by the utility model includes an unlocking lever that can be inserted into the unlocking hole, and a key that cooperates with the second driven part and transmits torque is arranged on the end surface of the unlocking lever. The second drive part is provided with an L-shaped guide groove on the outer peripheral surface of the unlocking lever, and the notch of the guide groove is located on the end surface of the unlocking lever.

In one of the embodiments, the second driving part is an inline groove provided on the end surface of the unlocking lever.

Compared with the prior art, the bolt type fixed lock provided by the utility model adopts the above-mentioned structure, the key cannot be taken out after unlocking, and the key can only be taken away after the fixed lock is re-locked, thereby avoiding the need for the key after unlocking. It is missing in the cabinet door, and it ensures the correct unlocking and locking process and facilitates the unlocking and locking operations.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a deadbolt type fixed lock and its key in one of the embodiments of the present invention;

Fig. 2 is the three-dimensional structural representation of the bolt type fixed lock and its key removed from the lock body in Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram of the locked state of the deadbolt type fixed lock and its key in Fig. 1;

Fig. 4 is a perspective view of the unlocked state of the deadbolt type fixed lock and its key in Fig. 1 .

Among the above figures, 100, key; 101, unlocking lever; 101a, inline groove; 101b, guide groove; 102, key handle; 200, fixed lock; 201, locking button; 202, second elastic part; Three elastic parts; 204, driving pin; 204a, wedge; 204b, extruding part; 205, locking bolt; 205a, locking tongue part; Bit groove; 206, first locking shaft; 206a, first limiting protrusion; 206b, U-shaped groove; 207, second locking shaft; 207a, second limiting protrusion; 207b, inclined surface; 208, unlocking Shaft; 208a, eccentric shaft; 208b, bump; 209, limit pin; 210, first elastic component; 211, lock body; 211a, unlocking hole; 211b, first through hole; 211c, second through hole.

Detailed ways

The utility model is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

As shown in Figures 1 and 2, the deadbolt type fixed lock 200 in one of the embodiments of the present utility model includes: a lock body 211, a lock bolt 205, a first elastic member 210, a first locking shaft 206, an unlocking shaft 208 and a limiter. Position pin 209, wherein the lock body 211 is provided with an unlocking hole 211a and a first through hole 211b, and the lock bolt 205, the first elastic member 210, the first locking shaft 206, the unlocking shaft 208 and the limit pin 209 are all installed on the Inside the lock body 211.

Referring to FIG. 2 , the lock bolt 205 is set in the lock body 211 so as to move back and forth between a locked position (ie, the position shown in FIG. 3 ) and an unlocked position (ie, the position shown in FIG. 4 ). One end of the lock bolt 205 is provided with a lock tongue part 205a, and the other end is provided with a pressing part 205b. (see FIG. 1 ), the pressing portion 205b protrudes out of the lock body 211 . Preferably, the pressing part 205b is provided with a locking button 201 to facilitate pressing the locking bolt 205 by hand. A first limiting groove 205c is disposed on the outer peripheral surface of the locking bolt 205 .

Continuing to refer to FIG. 2 , the first elastic component 210 is used to drive the locking bolt 205 to move from the locked position to the unlocked position. Preferably, the first elastic member 210 is a spring, and the spring is sleeved on the outside of the locking bolt 205 .

Continuing to refer to FIG. 2 , the first locking shaft 206 is set in the lock body 211 so as to move back and forth in the vertical direction of the axis of the locking bolt 205 , and one end of the first locking shaft 206 is provided with a A first limiting protrusion 206a matched with a limiting groove 205c, when the lock bolt 205 is in the locked position, the first limiting protrusion 206a is opposite to the first limiting groove 205c, and The second elastic member 202 is snapped into the first limiting groove 205c (see FIG. 3 ), thereby preventing the locking bolt 205 from moving from the locking position to the unlocking position. Preferably, the second elastic member 202 is a spring. A first driven part is disposed on the first locking shaft 206 . Preferably, the first driven part is a U-shaped groove 206B provided on the first locking shaft 206 .

Continuing to refer to FIG. 2, the unlocking shaft 208 is used to drive the first locking shaft 206 to move away from the lock bolt 205. The unlocking shaft 208 is rotatably arranged at the bottom of the unlocking hole 211a, and the first end of the unlocking shaft 208 A first driving part cooperating with the first driven part is provided. Preferably, the first driving part is an eccentric shaft 208a disposed on the unlocking shaft 208, and the eccentric shaft 208a is inserted into the U-shaped groove 206B. When the unlocking shaft 208 rotates, the eccentric shaft 208 a slides in the U-shaped groove 206B to drive the first locking shaft 206 to move away from the locking bolt 205 . The tail end of the unlocking shaft 208 is provided with a second driven part that cooperates with the second driving part on the end of the key and transmits torque. Preferably, the second driven part is an inline protrusion 208b provided on the end surface of the unlocking shaft 208 .

Continue referring to Fig. 2, one end of the limit pin 209 extends into the unlocking hole 211a above the unlocking shaft 208, when the key is inserted into the unlocking hole 211a, the limit pin 209 can be placed in the guide groove on the key Slide in 101b.

Preferably, a second limiting groove 205d is provided on the outer peripheral surface of the locking bolt 205, and the fixed lock 200 also includes a second locking shaft 207 and a driving pin 204, and the second locking shaft 207 can be positioned at The locking bolt 205 is arranged in the lock body 211 to move back and forth in the vertical direction of the axis, and one end of the second locking shaft 207 is provided with a second limiting protrusion that cooperates with the second limiting groove 205d 207a, when the lock bolt 205 is in the unlocked position, the second limiting protrusion 207a is opposite to the second limiting groove 205d, and is snapped into the second limiting groove 205d under the action of the third elastic member 203 In the limiting groove 205d, the second locking shaft 207 is provided with a third driven part; the driving bolt 204 is telescopically arranged in the lock body 211, and one end of the driving bolt 204 is provided with a The third driving part 204a matched with the third driven part has an extruding part 204b at the other end, and the extruding part 204b protrudes from the second through hole 211c on the side of the lock body 211. When the extruding part 204b When contracted under force, the third driving part 204 a cooperates with the third driven part to drive the second locking shaft 207 to move away from the locking bolt 205 . Preferably, the second through hole 211c and the first through hole 211b are disposed on the same side of the lock body 211 . Preferably, the third driving part 204a is a wedge 204a arranged at the end of the driving pin 204, and the third driven part is a wedge 204a arranged on the second locking shaft 207. The inclined surface 204a matches the inclined surface 207b.

In another embodiment of the present utility model, a key for the above-mentioned deadbolt type fixed lock 200 is also provided. As shown in Figures 1 and 2, the key 100 includes a key handle 102 and an unlocking key that can be inserted into the unlocking hole 211a. Rod 101, on the end face of the unlocking rod 101 is provided with a second driving part that cooperates with the second driven part and transmits torque, on the outer peripheral surface of the unlocking rod 101 is provided with an L-shaped guide groove 101b, and the The notch of the guide groove 101 b is located on the end surface of the unlocking lever 101 . Preferably, the second driving part is an inline groove 101a provided on the end surface of the unlocking lever 101 .

In actual use, the bolt-type fixed lock 200 is installed on the panel of the switch cabinet for locking the door of the switch cabinet. A lock nose is provided on the cabinet door, and an opening is arranged on the lock nose. The deadbolt portion of the lock bolt 205 205a is inserted into the opening on the lock nose to lock the cabinet door, and the dead bolt 205a of the lock bolt 205 leaves the opening on the lock nose to unlock the cabinet door. The working principle of the deadbolt type fixed lock 200 and the key thereof in the present embodiment will be described below:

In the locked state (as shown in FIG. 3 ), the first stop protrusion 206a of the first lock shaft 206 is stuck in the first stop groove 205c of the lock bolt 205 under the elastic force of the second elastic member 202 to make the lock The bolt 205 cannot move, so as to achieve the purpose of locking. At this time, the unlocking shaft 208 is in the initial position driven by the first locking shaft 206 . Simultaneously, the lock nose on the cabinet door presses the driving bolt 204 to make it shrink, and the inclined plane of the driving bolt 204 wedge 204a slides on the inclined surface 207b to force the second locking shaft 207 to overcome the elastic force of the third elastic member 203 to leave the locking bolt backward. 205 on the second limit groove 205d.

As shown in Figure 4, when unlocking, the unlocking lever 101 of the key 100 is inserted in the unlocking hole 211a, the inline groove 101a at the front end of the unlocking lever 101 matches the inline protrusion 208b at the tail end of the unlocking shaft 208, and the inline groove 101a on the outer peripheral surface of the unlocking lever 101 The opening of the guide groove 101b is aligned with the limit pin 209, and the key 100 is turned clockwise, the inline groove 101a at the front end of the unlocking lever 101 drives the inline protrusion 208b at the tail end of the unlocking shaft 208 to rotate together, and the eccentric shaft 208a at the front end of the unlocking shaft 208 drives The first locking shaft 206 overcomes the elastic force of the second elastic member 202 and moves backward away from the lock bolt 205 , the lock bolt 205 is ejected outward under the action of the first elastic member 210 , and the cabinet door is unlocked. After the lock bolt 205 pops up, the first locking shaft 206 is blocked by the lock bolt 205 and cannot move forward, so that the unlocking shaft 208 cannot reversely rotate and reset, and the guide groove 101b on the side of the key is blocked by the limit pin 209 so that it cannot be pulled out. Thereby realized that the key cannot be taken out after unlocking, and the key can be taken away only after the fixed lock 200 is locked again, so as to ensure that the unlocking and locking process is correct and facilitate the unlocking and locking operation.

When locking, close the cabinet door, the lock nose on the cabinet door presses the driving bolt 204, and the inclined surface of the driving bolt 204 wedge 204a slides on the inclined surface 207b to force the second locking shaft 207 to overcome the elastic force of the third elastic member 203 to leave The second limit groove 205d on the lock bolt 205, thereby unlocking the lock bolt 205; manually pressing the lock button 201, the first lock shaft 206 advances under the elastic force of the first elastic member 210 to block the first limit position of the lock bolt 205 At the same time, the first locking shaft 206 drives the unlocking shaft 208 to rotate counterclockwise, and the inline protrusion 208b at the tail end of the unlocking shaft 208 drives the key back to the initial position, and the key can be taken off.

It can be seen that the bolt type fixed lock in this embodiment adopts the above-mentioned structure, the key cannot be taken out after unlocking, and the key can only be taken away after the fixed lock is re-locked, thereby avoiding that the key is left behind on the cabinet door after unlocking In addition, it ensures that the unlocking and locking process is correct and facilitates the unlocking and locking operations.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. A bolt type fixed lock, is characterized in that, comprises: The lock body is provided with an unlocking hole; The lock bolt is arranged in the lock body so as to move back and forth between the locked position and the unlocked position. One end of the lock bolt has a tongue portion, and the other end has a pressing portion. When the lock bolt is in the locked position, the The lock tongue part protrudes from the first through hole on the side of the lock body, the pressing part protrudes out of the lock body, and the outer peripheral surface of the lock bolt is provided with a first limiting groove; a first elastic component, configured to drive the lock bolt to move from the locked position to the unlocked position; The first locking shaft is arranged in the lock body so as to move back and forth in the vertical direction of the lock bolt axis, and one end of the first locking shaft is provided with a first stop that cooperates with the first stop groove When the locking bolt is in the locked position, the first limiting protrusion is opposite to the first limiting groove, and is snapped into the first limiting groove under the action of the second elastic member. In the groove, a first driven part is arranged on the first locking shaft; The unlocking shaft is rotatably arranged at the bottom of the unlocking hole, the first end of the unlocking shaft is provided with a first drive part matched with the first driven part, and the tail end of the unlocking shaft is provided with a key end The second driven part cooperates with and transmits the torque to the second driven part; One end of the limiting pin extends into the unlocking hole above the unlocking shaft. When the key is inserted into the unlocking hole, the limiting pin can slide in the guide groove on the key. 2. The deadbolt type fixed lock according to claim 1, characterized in that, the first driven part is a U-shaped groove arranged on the first locking shaft, and the first driving part is arranged on The eccentric shaft on the end surface of the first end of the unlocking shaft is inserted into the U-shaped groove. 3 . The deadbolt type fixed lock according to claim 1 , wherein the second driven part is an in-line protrusion provided on the end surface of the tail end of the unlocking shaft. 4 . 4. The deadbolt type fixed lock according to claim 1, wherein the first elastic member is a spring, and the spring is sleeved on the outside of the lockbolt. 5 . The deadbolt type fixed lock according to claim 1 , wherein a locking button is arranged on the pressing part. 6 . 6. The deadbolt type fixed lock according to any one of claims 1 to 5, wherein a second limiting groove is also provided on the outer peripheral surface of the locking bolt, and the fixed lock also includes a first Two locking shafts and driving pins, the second locking shaft can move back and forth in the lock body in the vertical direction of the locking pin axis, and one end of the second locking shaft is provided with a The second limiting protrusion matched with the groove, when the lock bolt is in the unlocked position, the second limiting protrusion is opposite to the second limiting groove, and is locked under the action of the third elastic member into the second limiting groove, and the second locking shaft is provided with a third driven part; The driving bolt is telescopically arranged in the lock body, and one end of the driving bolt is provided with a third driving part that cooperates with the third driven part, and the other end is provided with a pressing part, and the pressing part is separated from the third driven part. The second through hole on the side of the lock body protrudes, and when the extruding part is forced to contract, the third driving part cooperates with the third driven part to drive the second locking axially away from the lock bolt. direction movement. 7. The deadbolt type fixed lock according to claim 6, characterized in that, the second through hole and the first through hole are arranged on the same side of the lock body. 8. The bolt type fixed lock according to claim 6, characterized in that, the third driving part is a wedge provided at the end of the driving bolt, and the third driven part is provided at the The inclined surface on the second locking shaft is matched with the inclined surface of the wedge. 9. A key for a deadbolt type fixed lock according to any one of claims 1 to 8, characterized in that it includes an unlocking lever that can be inserted into the unlocking hole, and an end face of the unlocking lever is provided with a The second drive part that cooperates with the second driven part and transmits torque is provided with an L-shaped guide groove on the outer peripheral surface of the unlocking lever, and the notch of the guide groove is located on the end surface of the unlocking lever. 10 . The key according to claim 9 , wherein the second driving part is a straight groove provided on the end surface of the unlocking lever. 11 .

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