CN210888411U

CN210888411U - Unlocking mechanism and lock

Info

Publication number: CN210888411U
Application number: CN201921169444.2U
Authority: CN
Inventors: 谭健华; 陈昊; 姜发军
Original assignee: ZHUHAI VALWELL ELECTRIC TECHNOLOGY CO LTD
Current assignee: ZHUHAI VALWELL ELECTRIC TECHNOLOGY CO LTD
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-30
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to an unlocking mechanism and tool to lock. The unlocking mechanism comprises at least one ball element; an unlocking rod having a cylindrical inner cavity, the unlocking rod being provided with at least one orifice extending radially through the inner cavity, the orifice being sized to fit the diameter of the spherical member; the loop bar is sleeved on the unlocking bar and provided with at least one hole part matched with the size of the orifice; and an actuator having a movable shaft with an outer diameter that fits the inner diameter of the cylindrical inner cavity of the lock release lever and allows the movable shaft to move axially in the cylindrical inner cavity to a locked position and an unlocked position. The lockset comprises the unlocking mechanism. The utility model provides an unlocking mechanism and tool to lock reliability is high, simple structure and compact.

Description

Unlocking mechanism and lock

Technical Field

The utility model relates to an release mechanism and tool to lock, wide application in fields such as power equipment, industry control field, intelligent electronic lock.

Background

In the fields of electric power equipment management and control systems, industrial control operating equipment and the like, locking management and control of various equipment are required. For example, before a specific device is operated or opened, authorization is required to open a lock of the device, so that a user is prevented from operating or opening the device by himself without authorization, and the operation safety of the device is prevented from being affected. In consideration of the characteristics of application scenarios, an unlocking mechanism and a lockset thereof with high reliability, simple structure and compact volume are needed.

SUMMERY OF THE UTILITY MODEL

In order to satisfy the demand application demand and improve prior art, the utility model provides a solution for unblock.

The utility model discloses a technical scheme first aspect is an unlocking mechanism, and it includes: at least one sphere member; an unlocking rod having a cylindrical inner cavity, the unlocking rod being provided with at least one orifice extending radially through the inner cavity, the orifice being sized to fit the diameter of the spherical member; the loop bar is sleeved on the unlocking bar and provided with at least one hole part matched with the size of the orifice; and an actuator having a movable shaft with an outer diameter that is adapted to the inner diameter of the cylindrical inner cavity of the lock release lever and allows the movable shaft to move axially in the cylindrical inner cavity between a first position (or locked position) and a second position (or unlocked position). Wherein: in the first position, the movable shaft allows the ball member to be simultaneously retained within the aperture of the unlatching lever and the bore portion of the loop bar to limit rotation between the loop bar relative to the unlatching lever; in the second position, the movable shaft allows the ball member to escape from the hole portion of the lever to release the rotational restriction of the lever with respect to the lock release lever.

According to some aspects of the present invention, the actuator includes an electromagnet and a coil.

According to some aspects of the utility model, a plurality of drill way are followed the circumference of unblock pole distributes to the interval angle of predetermineeing.

According to some aspects of the present invention, the unlocking lever extends a lever seat communicating with the inner cavity, the lever seat is connected with the fixed part of the actuator through a fastener, and the movable shaft of the actuator is allowed to extend into the orifice and the interaction position of the inner cavity.

According to some aspects of the present invention, the movable shaft includes a groove provided on the shoulder, and a cross-sectional profile of the groove matches a portion of a circumferential profile of the ball member.

According to some aspects of the invention, the loop bar comprises a square shaft portion for outputting the torque.

According to some aspects of the present invention, the unlocking mechanism further comprises: the base is fixed with the unlocking rod and is used for supporting the sleeve rod to rotate, and the base comprises at least one accommodating hole and a clamping hole intersected with the accommodating hole; a ball accommodated in the accommodation hole; the pin shaft is fixed in the clamping hole; and the spring is arranged in the accommodating hole and between the pin shaft and the ball, wherein the spring forms pressure to push the ball to press the peripheral wall of the loop bar under the limiting action of the pin shaft, so that the loop bar is supported, and the loop bar is allowed to rotate relative to the unlocking bar.

According to some aspects of the invention, the loop bar comprises a circular track provided at the circumferential wall, the circular cross-sectional dimension of the portion of the circular track matching the diameter of the ball.

According to some aspects of the utility model, release mechanism still include with release lever fixed connection's communication connect and with the connecting rod of communication joint contact, wherein the connecting rod passes the inner chamber of release lever.

According to some aspects of the present invention, the unlocking lever further includes a groove communicating with an inner cavity thereof, so that a wire extending from the connecting rod is led out from the inner cavity of the unlocking lever to the outside of the unlocking lever and the loop bar through the groove, and does not interfere with the loop bar in motion and the movable shaft of the actuator.

According to some aspects of the present disclosure, the unlocking mechanism further comprises an identifier disposed coaxially with the stem, the identifier comprising an RFID reading head device.

According to some aspects of the present invention, the unlocking mechanism further comprises: a base for supporting the unlocking lever and the loop lever; a PCB disposed on the base; and one or more sensors, such as hall sensing assemblies, disposed on the PCB for sensing the rotational position of the stem.

The second aspect of the technical scheme of the utility model is a lock, it includes foretell release mechanism. The lock can be implemented as various equipment management locks, intelligent electronic locks, and the like.

The utility model provides a modified reliability is high, simple structure, compact's release mechanism and tool to lock, wherein the technological improvement or the beneficial effect of detail as follows: the spherical parts arranged circumferentially at different angles can solve the technical problem that the movable shaft of the actuator can return smoothly in any rotation process of the sleeve rod; the movable shaft with the groove at the shaft shoulder position can prevent the unlocking mechanism or the lock from being vibrated, and prevent the movable shaft in the actuator from moving downwards due to inertia to cause the locking failure; the base supports the spring ball of the sleeve rod, so that the coaxial motion stability between the unlocking rod and the sleeve rod is improved, and the smoothness of the unlocking process is further improved; the torsion connection position of the unlocking rod and the sleeve rod can adopt a square shaft structure, the torsion strength is high, and the locking failure caused by idle rotation of the shaft sleeve due to artificial damage can be avoided; providing an identifier based on RFID technology, and judging unlocking through identity information recorded by an RFID chip; providing a conductive contact element of a communication device that does not interfere with and twist the conductive contact element and its wire even during rotation of the loop bar; the position sensor and the matched circuit are provided, and the on-off state of the unlocking mechanism or the lock can be judged by monitoring the rotating position of the loop bar.

Drawings

Fig. 1 is an exploded view of an unlocking mechanism according to the present invention in one embodiment.

Fig. 2 is a schematic perspective view of an unlocking mechanism according to the present invention in an embodiment.

Fig. 3 is a front sectional view of the unlocking mechanism of fig. 2.

Fig. 4 is a side cross-sectional view of the delatch mechanism of fig. 2 with the movable shaft of the actuator in a first position.

Fig. 5 is a side cross-sectional view of the delatch mechanism of fig. 2 with the movable shaft of the actuator in a second position.

Fig. 6 shows a detailed view of a portion of the actuator movable shaft of the unlocking mechanism according to the invention in an embodiment.

Fig. 7 is a front view of an unlocking lever of the unlocking mechanism according to the present invention in one embodiment.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

Fig. 1 and 2 are an exploded schematic view and an assembled perspective view of an unlocking mechanism according to the present invention. The unlocking mechanism mainly includes an actuator 1, an unlocking lever 2, a loop bar 3, and a ball 81. The actuator 1, the unlocking rod 2 and the sleeve rod 3 are coaxially assembled as shown in fig. 3, wherein the unlocking rod 2 and the sleeve rod 3 are of a hollow structure, the sleeve rod 3 is sleeved outside the unlocking rod 2, and the outer diameter of the movable shaft 10 of the actuator 1 is matched with the inner diameter of the cylindrical inner cavity of the unlocking rod 2, so that the movable shaft can linearly move in the inner cavity of the unlocking rod 2.

In the present embodiment, the unlocking lever 2 is provided with at least one aperture 22 penetrating radially into the inner cavity, and the loop bar 3 is provided with at least one hole portion 31. The aperture 22 and the hole portion 31 are sized slightly larger or substantially matched to the diameter of the ball member 81 so that the ball member 81 can move in the radial direction of the lock release lever 2 and the bush lever 3 within the aperture 22 and the hole portion 31. When the lock release lever 2 and the loop lever 3 fitted in place undergo relative rotation about their common axis, the orifice 22 can be made to meet the hole portion 31 in the radial direction. Therefore, when the movable shaft 10 restricts the ball member 81 from being partially received in the hole 22 and partially received in the hole portion 31, the ball member 81 can restrict the rotation between the bush lever 3 and the lock release lever 2. When the movable shaft 10 of the actuator 1 allows the ball member 81 to leave the hole portion 31 of the sleeve rod 3, the sleeve rod 3 can rotate relative to the unlocking lever 2, i.e., unlocking is achieved.

Referring to fig. 3, in one embodiment, the base 9 is provided with at least one receiving hole 91 and a card hole 92 meeting the receiving hole 91. In this embodiment, the unlocking structure according to the present invention may further include a ball 82; a pin 84 fixed in the locking hole 92; and a compression-type spring 83 disposed in the receiving hole 91 between the pin 84 and the ball 82. The spring 83 deforms itself under the limiting action of the pin 84 to form a pressure to push the ball 82 to press on the peripheral wall of the loop bar 3, thereby supporting the loop bar 3 and allowing the loop bar 3 to rotate relative to the unlocking bar 2. Preferably, the loop bar 3 comprises a loop rail 32 arranged at the circumferential wall. The cross-section of the circular track 32 may be a semi-circle or smaller circle having a corresponding diameter sized to match or be substantially equal to the diameter of the ball 82. Through the structure that the base 9 supports the ball 82 of the spring 83 of the loop bar 3, the stability of the coaxial motion between the unlocking rod 2 and the loop bar 3 is improved, and the fluency of the unlocking process is further improved.

In some embodiments, the actuator 1 may be implemented as an electromagnet, a motor, a spring 83, etc. to trigger the movement of the movable shaft 10. The ball element 81 can be embodied as a steel ball.

Reference is now made to a further embodiment illustrated in fig. 4 and 5. Fig. 4 shows a side sectional view of the unlocking mechanism according to the present invention, in which the movable shaft 10 of the actuator 1 is located at the first position (or locked position). Fig. 5 differs from fig. 4 in that the movable shaft 10 of the actuator 1 is located in the second position (or unlocked position).

In the locked position, as shown in fig. 4, the movable shaft 10 of the actuator 1 is extended and the shoulder 101 abuts against the ball member 81, so that the ball member 81 is simultaneously held in the opening 22 of the lock release lever 2 and the hole portion 31 of the lock lever 3, and therefore, the lock lever 3 and the lock release lever 2 are simultaneously restricted by the ball member 81 so that they cannot rotate relative to each other.

As shown in fig. 5, in the unlock position, the movable shaft 10 of the actuator 1 is retracted, and the shoulder 101 is away from the opening 22 of the unlock lever 2. Since the diameter of the end of the movable shaft 10 is sufficiently smaller than the diameter of the shoulder 101, a space for accommodating the ball 81 can be formed between the outer wall of the lock release lever 2 and the outer periphery of the end of the movable shaft 10, so that the ball 81 can be forced toward the inner cavity of the lock release lever 2 during the rotation of the sleeve 3. Thereby, the rotation restriction between the lock lever 2 and the lock release lever 3 is released.

Referring to FIG. 6, in some embodiments, a shoulder 101 of the movable shaft 10 may be provided with a groove 102, the cross-sectional profile of which groove 102 matches a portion of the circumferential profile of the ball member 81. The movable shaft 10 with the groove 102 at the position of the shaft shoulder 101 can prevent the unlocking mechanism or the lock from being vibrated, and prevent the movable shaft 10 in the actuator 1 from moving downwards due to inertia to cause the locking failure. In addition, a transition structure such as a chamfer 103 (as shown in fig. 6) or a fillet may be provided between the shoulder 101 and the end of the movable shaft 10, so that the ball 81 can naturally move radially along the transition structure during unlocking or locking, thereby improving the smoothness of unlocking or locking.

Referring back to fig. 1, in some embodiments, a plurality (e.g., 3) of the orifices 22 may be provided distributed along the circumference of the lock release lever 2 and spaced at a predetermined angle. Each orifice 22 may be provided with a ball member 81. Because a plurality of ball members 81 are distributed at different angles, the problem that the external unlocking key cannot be pulled out due to the fact that the sleeve rod 3 is not returned to the actuator 1 at the initial position in the rotation process of 2360 degrees relative to the unlocking rod can be solved. For example, when the electronic key is powered off in the process of authorized unlocking, the electromagnet does not return to the initial position in the process of key rotation, so that the key is locked and cannot be pulled out.

Referring to fig. 1 and 3, in some embodiments, the release lever 2 extends a lever seat 21 communicating with the internal cavity, the lever seat 21 being connected to a fixed portion of the actuator 1 by a fastener. The rod seat 21 of the lock release rod 2 may have a spot-facing portion or a square structure to improve torsional strength. The loop bar 3 can be provided with a square shaft part 33 for outputting larger torque, and meanwhile, the square structure of the square shaft part 33 is high in strength, so that the phenomenon that the shaft sleeve idles due to artificial damage and locking is invalid can be avoided.

In some embodiments, the unlocking mechanism according to the present invention further comprises: a base 9 for supporting the lock release lever 2 and the loop lever 3; a PCB5 disposed on the base 9; and one or more sensors 51, such as hall sensing assemblies, disposed on the PCB5 for sensing the rotational position of the lever 3. According to the utility model discloses an unlocking mechanism still includes the recognizer 4 of arranging with the loop bar 3 is coaxial. The identifier 4 comprises an RFID reading head device, and the unlocking can be judged by the identity information recorded by the RFID code sheet. The identifier 4 may also comprise other identification devices such as a bluetooth key identifier 4. In other embodiments, the identifier 4 may include a wireless power supply, and may supply power to an electrical component of the lock (e.g., an electronic key) external to the unlocking mechanism through a wireless power coil and communicate via wireless communication within the lock.

In some embodiments, the unlocking mechanism further comprises a communication joint 6 fixedly connected to the unlocking lever 2 and a connecting rod 7 in contact with said communication joint 6. The unlocking lever 2 may be provided with a pin hole 23 and the communication joint 6 and the unlocking lever 2 may be securely fixed by a pin 61, as shown in fig. 1 and 2.

Referring to fig. 4 and 7, the lock release lever 2 may be provided with an "L" shaped channel 24 communicating with the inner cavity. The groove 24 extends from the inner cavity to the outside of the lock release lever 2 and extends along the outer wall to the lever seat 21 portion of the lock release lever 2. And, as shown in the cross-sectional view of fig. 4, there is a wall space between the groove 24 and the cavity where the movable shaft 10 is located, so that the wire extending from the connecting rod 7 is led out from the inner cavity of the lock release lever 2 to the outside of the lock release lever 2 and the loop lever 3 through the groove 24, and does not interfere with the moving loop lever 3 and the movable shaft 10 of the actuator 1.

On the communication connector 6, electrically conductive communication contacts can be provided, which can then supply power and communicate with the external lock electrical components in a single bus manner. The conductive contact element is provided so as not to interfere with and twist the conductive contact element and its wire even during rotation of the shank 3.

According to the utility model discloses a tool to lock includes foretell release mechanism. The lockset can be various equipment management locks, intelligent electronic locks and the like.

The foregoing is merely a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, as long as the technical effects of the present invention are achieved by the same means, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present disclosure should be included within the scope of the present disclosure. All belong to the protection scope of the utility model. The technical solution and/or the embodiments of the invention may be subject to various modifications and variations within the scope of the invention.

Claims

1. An unlocking mechanism, comprising:

at least one sphere member (81);

an unlocking rod (2) with a cylindrical inner cavity, wherein the unlocking rod (2) is provided with at least one hole (22) penetrating into the inner cavity radially, and the size of the hole (22) is matched with the diameter of the ball body part (81);

the sleeve rod (3) is sleeved on the unlocking rod (2), and the sleeve rod (3) is provided with at least one hole part (31) matched with the size of the orifice (22); and

an actuator (1) having a movable shaft (10), the movable shaft (10) having an outer diameter adapted to the inner diameter of the cylindrical inner cavity of the release lever (2) and allowing axial movement of the movable shaft (10) in the cylindrical inner cavity between a first position and a second position, wherein:

in the first position, the movable shaft (10) allows the ball element (81) to be simultaneously retained within the aperture (22) of the unlocking lever (2) and the bore portion (31) of the sleeve rod (3) to limit rotation between the sleeve rod (3) relative to the unlocking lever (2);

in the second position, the movable shaft (10) allows the ball member (81) to escape from the hole portion (31) of the lever (3) to release the rotational restriction between the lever (3) relative to the lock release lever (2).

2. The unlock mechanism of claim 1, wherein: the plurality of orifices (22) are distributed along the circumferential direction of the unlocking rod (2) and are spaced by a preset angle.

3. The unlock mechanism of claim 1, wherein: the unlocking rod (2) extends to form a rod seat (21) communicated with the inner cavity, the rod seat (21) is connected with the fixed part of the actuator (1) through a fastener, and the movable shaft (10) of the actuator (1) is allowed to extend to the interaction position of the opening (22) and the inner cavity.

4. The unlock mechanism of claim 1, wherein: the movable shaft (10) comprises a groove (102) arranged on a shaft shoulder (101), and the cross-sectional profile of the groove (102) is matched with a part of the circumferential profile of the ball body (81).

5. The unlock mechanism of claim 1, further comprising:

the base (9), the base (9) is fixed with the unlocking rod (2) and is used for supporting the loop bar (3) to rotate, the base (9) comprises at least one accommodating hole (91) and a clamping hole (92) intersected with the accommodating hole (91);

a ball (82) accommodated in the accommodation hole (91);

a pin (84) fixed in the clamping hole (92);

a spring (83) disposed in the receiving hole (91) between the pin (84) and the ball (82),

the spring (83) forms pressure to push the ball (82) to press the peripheral wall of the loop bar (3) under the limiting action of the pin shaft (84), so that the loop bar (3) is supported, and the loop bar (3) is allowed to rotate relative to the unlocking bar (2).

6. The unlocking mechanism according to claim 5, characterized in that the sleeve rod (3) comprises a ring rail (32) arranged on the peripheral wall, the circular cross-sectional dimensions of the section of the ring rail (32) matching the diameter of the ball (82).

7. The unlock mechanism of claim 1, further comprising:

the communication joint (6) is fixedly connected with the unlocking rod (2); and

a connecting rod (7) in contact with the communication joint (6),

wherein the connecting rod (7) passes through the inner cavity of the unlocking rod (2).

8. The unlocking mechanism according to claim 7, characterized in that the unlocking lever (2) further comprises a groove (24) communicating with its inner cavity, so that a wire extending from the connecting rod (7) is led out from the inner cavity of the unlocking lever (2) through the groove (24) to the outside of the unlocking lever (2) and the loop bar (3) and does not interfere with the moving loop bar (3) and the movable shaft (10) of the actuator (1) in motion.

9. The unlock mechanism of claim 1, further comprising:

a base (9) for supporting the unlocking lever (2) and the loop bar (3);

a PCB (5) disposed on the base (9);

one or more sensors (51) disposed on the PCB (5) for detecting a rotational position of the lever (3); and

an identifier (4) arranged coaxially with the shank (3), the identifier (4) comprising an RFID read head arrangement and/or a wireless power supply coil.

10. A lock, characterized in that it comprises an unlocking mechanism according to any one of claims 1 to 9.