Electronic blade-added emergency lock

Abstract

The invention discloses an electronic blade-added emergency lock which comprises a lock shell, a spring bolt and a driving unit, the driving unit is provided with a cam, the electronic blade-added emergency lock further comprises a locking rod rotationally arranged in the lock shell, a locking elastic piece capable of keeping the locking rod locked and a positioning part, and the driving unit is fixed to the lock shell. And when the driving unit drives the cam to rotate, the cam can push the locking rod to deflect, so that the locking rod avoids locking limitation on the spring bolt. The sliding block is changed into the rotatable locking rod, so that limitation of a cam is not needed in the locking process, the locking rod can be kept at the locking position through limitation of the locking elastic piece and the positioning part so as to limit unlocking of the spring bolt, in the structure, the cam does not need to limit the locking rod in the locking process, and therefore even if the locking rod is impacted, unlocking of the spring bolt is not needed. Therefore, the risk that a motor shaft is bent is avoided, the reliability is improved, and the cam and the locking rod are simple in structure.

Description

TECHNICAL FIELD

[0001] The present application relates to an electronic lock, in particular an electronic lock with leaf emergency. BACKGROUND

[0002] Electronic lock is widely used at present, which realizes unlocking by using motor to drive the movement of lock tongue. At present, there is an electronic lock mainly applied to safe (publication number: CN105257105B, patent name: double power electronic mechanical lock) on the market, which comprises a main motor and a sliding block arranged on a bracket, and the main motor is provided with a cam, and the cam is connected with the special-shaped groove sliding block on the sliding block.

[0003] When unlocking, the platform surface of the cam driven by the main motor is parallel to the special-shaped groove surface of the sliding block, the safe handle is rotated, the lock tongue blocking surface is pushed to rotate towards the lock body, the end of the lock tongue is pressed to move downward against the elastic force of the spring, and the lock is opened.

[0004] When there is no electricity or the circuit is completely damaged, the key is inserted into the lock body from the key hole, the key is rotated, the key drives the movement of the leaf in the lock body, when the leaf moves to the alignment of the leaf groove, the bracket is pulled by the key, the insert piece on the bracket is inserted into the leaf groove, the main motor, the auxiliary motor and the sliding block move downward together, the lock is opened, and mechanical emergency opening of the lock is realized.

[0005] In the above structure, the sliding block is locked by the cam, so when locked, if someone rotates the handle with great force, the lock tongue will impact the sliding block, the sliding block will impact the cam, the cam will transmit the impact to the motor shaft, the radial impact force has a great influence on the motor shaft, which is easy to cause the bending deformation of the motor shaft, thereby causing the position deviation of the cam and the damage of the motor, and the reliability is not high; and the cam of the above structure cooperates with the sliding block to realize locking and unlocking, so that the structure of the cam and the sliding block is complex.

[0006] The main motor, the auxiliary motor and the sliding block are all arranged on the bracket, and when emergency unlocking, the bracket is prone to the problems of heavy weight and sliding disorder. SUMMARY

[0007] In order to overcome the defects of the prior art, the present application provides an electronic lock with leaf emergency, which has a simple structure.

[0008] The technical scheme adopted by the present application to solve the technical problems is: An electronic lock with leaf emergency, comprising a lock shell, a lock tongue and a driving unit, wherein the driving unit is provided with a cam, and further comprising a locking rod rotatably arranged in the lock shell, a locking elastic member capable of keeping the locking rod locked and a positioning portion, the driving unit is fixed on the lock shell, and when the driving unit drives the cam to rotate, the cam can push the locking rod to deflect, so that the locking rod avoids the locking restriction on the lock tongue.

[0009] The lock housing has a shaft hole, and the locking rod has a rotating shaft that mates with the shaft hole.

[0010] The lock housing has two support plates facing each other, the shaft hole is located on the support plate, and the locking rod is located between the two support plates.

[0011] The locking elastic element is a spring, the locking rod has a rod hole, one end of the locking elastic element is located in the rod hole, and the other end of the locking elastic element abuts against the lock housing.

[0012] It also includes a bracket with a through hole through which the end of the locking rod passes. The bracket also has an inclined guide surface. When the bracket moves, the wall of the through hole can be pressed against the inclined guide surface, causing the locking rod to deflect.

[0013] The bracket is provided with a bending plate, and the through hole is located on the bending plate.

[0014] The plane in which the cam rotates is perpendicular to the plane in which the latch rotates.

[0015] It also includes several blades. The lock housing is provided with a torsion spring and a reset button. The reset button is rotatably connected to the lock housing through a button shaft. The torsion spring is set on the button shaft, and the torsion arm of the torsion spring abuts against the lock housing. The other torsion arm of the torsion spring abuts against the reset button, thereby driving the reset button to rotate and reset. The reset button can drive the blades to move and reset.

[0016] The beneficial effects of this invention are as follows: This invention replaces the slider with a rotatable locking rod, so there is no need for a cam to restrict it when locking. The locking rod can be kept in the locked position by the restriction of the locking elastic element and the positioning part, thereby restricting the unlocking of the lock tongue. In the above structure, the cam does not need to restrict the locking rod during the locking process. Therefore, even if the locking rod is impacted, it will not be transmitted to the motor through the cam, thereby avoiding the risk of motor shaft bending and improving reliability. Moreover, the structure of the cam and the locking rod is simple. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a view of the internal structure of an electronic lock; Figure 2 This is a structural view of the locking lever in the locked state; Figure 3 This is a structural view of the locking lever when the motor drives the cam to unlock; Figure 4 This is a structural view of the locking lever when the key drives the bracket to unlock. Detailed Implementation

[0019] The advantages and features of this disclosure, as well as its implementation methods, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0020] The shapes, dimensions, scales, angles, and numbers disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore this disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the focus of this disclosure. Where the terms “comprising,” “having,” and “including” are used in this specification, additional components may be added unless “only” is used. Unless otherwise indicated, singular terms may include plural forms.

[0021] When interpreting components, even if not explicitly described, the components are understood to include a range of tolerances.

[0022] When describing positional relationships, such as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts unless "immediately following" or "directly" is used.

[0023] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.

[0024] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.

[0025] As will be fully understood by those skilled in the art, the features of the different embodiments of this disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other and be technically driven in various ways. The embodiments of this disclosure may be implemented independently of each other, or may be implemented together in an interdependent relationship.

[0026] Reference Figures 1 to 4This invention discloses an electronic emergency lock with a blade, including a lock shell, a lock tongue 1, and a drive unit 2. The drive unit 2 is provided with a cam 3. In this application, the lock shell is square and includes two parts, a box body 4 and a cover plate, for ease of manufacturing. The lock tongue 1 is a prior art technology and is unlocked or locked by rotation. The drive unit 2 is a common motor, which is fixed to the inner wall of the lock shell. The cam 3 is a cam shape commonly used in mechanics.

[0027] It also includes a locking rod 5 rotatably disposed within the lock housing, a locking elastic member 6 that can keep the locking rod 5 locked, and a positioning part. The locking rod 5 is located below the bolt 1. In the locked state, the top end of the locking rod 5 is close to the bolt 1. Therefore, when the locking rod 5 is not released, the bolt 1 will rotate and abut against the top end of the locking rod 5, thereby restricting the rotation of the bolt 1 and thus preventing it from being unlocked.

[0028] When the drive unit 2 drives the cam 3 to rotate, the cam 3 can push the locking rod 5 to deflect, thereby allowing the locking rod 5 to avoid locking the latch 1. At this time, the latch 1 can rotate. When locking is required, the drive unit 2 drives the cam 3 to rotate in the opposite direction, and then the locking elastic element 6 pushes the locking rod 5 to deflect in the opposite direction, which can reset the locking rod 5 and thus restrict the latch 1.

[0029] Preferably, in this application, the plane in which the cam 3 rotates is perpendicular to the plane in which the bolt 1 rotates. This way, when unlocking, the cam 3 only needs to push the locking lever 5 to a small angle to avoid restricting the bolt 1.

[0030] With the above structure, during the locking process, cam 3 does not need to restrict locking rod 5. This not only achieves the simplest control structure for the motor to lock tongue 1, but also ensures that if someone turns the handle forcefully during locking, although the lock tongue will impact locking rod 5, the shaft of locking rod 5 will bear the impact. Locking rod 5 will not transmit the impact to cam 3, nor will it be transmitted to the motor through cam 3. This avoids the risk of motor shaft bending and improves reliability. Moreover, the structure of cam 3 and locking rod 5 is simple, and the reversal of lock tongue 1 can be achieved by simply changing the position of the hole in the lock housing that matches the shaft of lock tongue 1, without changing any other structure. Furthermore, neither drive unit 2 nor locking rod 5 is fixed to bracket 7, thus avoiding the problem of bracket 7 being heavy and not sliding smoothly.

[0031] As a specific structure, the lock housing is provided with a shaft hole 8, and the locking rod 5 is provided with a rotating shaft 9 that mates with the shaft hole 8; the lock housing is provided with opposing support plates 10, the shaft hole 8 is located on the support plate 10, and the locking rod 5 is located between the two support plates 10. In order to facilitate assembly, the hole on the support plate 10 is a U-shaped hole. When the rotating shaft 9 is inserted, the cover plate is closed to form a complete shaft hole 8.

[0032] As a specific structure, the locking elastic element 6 is a spring, the locking rod 5 is provided with a rod hole, one end of the locking elastic element 6 is located in the rod hole, and the other end of the locking elastic element 6 abuts against the lock shell. Therefore, the elastic force of the spring can keep the locking rod 5 in a locked state, that is, the top end of the locking rod 5 is close to the lock tongue 1. Of course, the other direction of the locking rod 5 is positioned by the support of the positioning part. In this application, the positioning part is preferably the side edge of the cam 3. Not only is it convenient to directly squeeze the locking rod 5 when the cam rotates, but this structure is also simple and does not require additional protruding blocks or plates in the housing as positioning parts. Of course, the above is only a preferred option and does not constitute a limitation of this application.

[0033] like Figure 1 As shown, it also includes a bracket 7, which has a through hole 11 through which the end of the locking rod 5 passes. The bracket 7 also has an inclined guide surface 12. When the bracket 7 moves, the wall of the through hole 11 can press against the inclined guide surface 12, causing the locking rod 5 to deflect. Of course, the lock case also has several blades 17. When there is no power or the circuit is completely damaged, the key is inserted into the lock case through the keyhole and turned. The key drives the blades 17 in the lock case to move. When the blades 17 move to the blade 17 slots and are aligned, the bracket 7 is pulled by the key, which causes the wall of the through hole 11 to press against the inclined guide surface 12, causing the locking rod 5 to deflect. This allows the locking rod 5 to avoid locking the bolt 1. At this time, the bolt 1 can rotate, and the door can be opened by simply turning the handle.

[0034] As a specific structure, the bracket 7 is provided with a bending plate 13, and the through hole 11 is located on the bending plate 13.

[0035] like Figure 1 As shown, the lock housing is provided with a torsion spring 14 and a reset button 15. The reset button 15 is rotatably connected to the lock housing through a pivot 16. The torsion spring 14 is disposed on the pivot 16, and one torsion arm of the torsion spring 14 abuts against the lock housing, while the other torsion arm of the torsion spring 14 abuts against the reset button 15, thereby driving the reset button 15 to rotate and reset. The reset button 15 can drive the blade 17 to move and reset. The above structure realizes the reset of the blade 17 after it is moved by the key.

[0036] The above provides a detailed description of an electronic emergency lock with blades provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An electronic emergency lock with a leaf spring, comprising a lock housing, a lock tongue, and a drive unit, wherein the drive unit is provided with a cam, characterized in that: It also includes a locking rod rotatably disposed within the lock housing, a locking elastic element and a positioning part that can keep the locking rod locked, the driving unit is fixed on the lock housing, and when the driving unit drives the cam to rotate, the cam can push the locking rod to deflect, thereby allowing the locking rod to avoid locking the bolt.

2. The electronic emergency lock with blades according to claim 1, characterized in that: The lock housing has a shaft hole, and the locking rod has a rotating shaft that mates with the shaft hole.

3. The electronic emergency lock with blades according to claim 2, characterized in that: The lock housing has two support plates facing each other, the shaft hole is located on the support plate, and the locking rod is located between the two support plates.

4. The electronic emergency lock with blades according to claim 1, characterized in that: The locking elastic element is a spring, the locking rod has a rod hole, one end of the locking elastic element is located in the rod hole, and the other end of the locking elastic element abuts against the lock housing.

5. An electronic emergency lock with blades according to claim 1, characterized in that: It also includes a bracket with a through hole through which the end of the locking rod passes. The bracket also has an inclined guide surface. When the bracket moves, the wall of the through hole can be pressed against the inclined guide surface, causing the locking rod to deflect.

6. An electronic emergency lock with blades according to claim 5, characterized in that: The bracket is provided with a bending plate, and the through hole is located on the bending plate.

7. An electronic emergency lock with blades according to claim 1, characterized in that: The plane in which the cam rotates is perpendicular to the plane in which the latch rotates.

8. An electronic emergency lock with blades according to claim 1, characterized in that: It also includes several blades. The lock housing is provided with a torsion spring and a reset button. The reset button is rotatably connected to the lock housing through a button shaft. The torsion spring is set on the button shaft, and the torsion arm of the torsion spring abuts against the lock housing. The other torsion arm of the torsion spring abuts against the reset button, thereby driving the reset button to rotate and reset. The reset button can drive the blades to move and reset.

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