CN110374412B

CN110374412B - Unlocking mechanism and lockset

Info

Publication number: CN110374412B
Application number: CN201910667184.XA
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: 2024-09-13
Anticipated expiration: 2039-07-23
Also published as: CN110374412A

Abstract

The invention relates to an unlocking mechanism and a lockset. The unlocking mechanism comprises at least one sphere piece; an unlocking lever having a cylindrical inner cavity, the unlocking lever being provided with at least one aperture radially penetrating into said inner cavity, the size of the aperture being adapted to the diameter of said ball element; a loop bar sleeved on the unlocking bar, wherein the loop bar is 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 an inner diameter of the cylindrical cavity of the unlocking lever and that allows the movable shaft to move axially in the cylindrical cavity between a locked position and an unlocked position. The lockset comprises the unlocking mechanism. The unlocking mechanism and the lockset provided by the invention have the advantages of high reliability, simple structure and compact volume.

Description

Unlocking mechanism and lockset

Technical Field

The invention relates to an unlocking mechanism and a lockset, which are widely applied to the fields of power equipment, industrial control fields, intelligent electronic locks and the like.

Background

In the fields of power equipment control systems, industrial control operation equipment and the like, locking control of various equipment is required. For example, prior to operating or opening a particular device, authorization is required to open the device's lock to prevent the user from operating or opening the device by himself without authorization, affecting the operational safety of the device. Considering the characteristics of application scenes, there is a need for an unlocking mechanism and a lock thereof, which have high reliability, simple structure and compact volume.

Disclosure of Invention

In order to meet the needs of demanding applications and to improve the prior art, the present invention provides a solution for unlocking.

The first aspect of the present invention is an unlocking mechanism, comprising: at least one ball element; an unlocking lever having a cylindrical inner cavity, the unlocking lever being provided with at least one aperture radially penetrating into said inner cavity, the size of the aperture being adapted to the diameter of said ball element; a loop bar sleeved on the unlocking bar, wherein the loop bar is 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 an inner diameter of the cylindrical cavity of the unlocking lever and that allows the movable shaft to move axially within the cylindrical cavity between a first position (or locking position) and a second position (or unlocking position). Wherein: in the first position, the moveable shaft allows the ball member to be retained within both the aperture of the unlocking lever and the bore of the lever to limit rotation of the lever relative to the unlocking lever; in the second position, the movable shaft allows the ball member to disengage from the socket portion of the lock lever to release the rotational restriction of the lock lever relative to the unlock lever.

According to some aspects of the invention, the actuator comprises an electromagnet, a coil.

According to some aspects of the present invention, a plurality of apertures are distributed along a circumferential direction of the unlocking lever and spaced apart by a predetermined angle.

According to some aspects of the invention, the unlocking lever extends a lever seat communicating with the cavity, the lever seat being connected to the fixed part of the actuator by a fastener and allowing the movable shaft of the actuator to extend into the reciprocal position of the orifice and the cavity.

According to some aspects of the invention, the moveable shaft comprises a groove disposed on the shoulder, the groove having a cross-sectional profile matching a portion of a circumferential profile of the ball element.

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

According to some aspects of the invention, the unlocking mechanism further comprises: the base is fixed with the unlocking rod and used for supporting the loop rod to rotate, and comprises at least one containing hole and a clamping hole intersected with the containing 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, and the spring forms pressure to push the ball to press the peripheral wall of the loop bar under the limit 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 includes a circumferential track provided on the peripheral wall, a portion of the circumferential track having a circular cross-sectional dimension matching a diameter of the ball.

According to some aspects of the invention, the unlocking mechanism further comprises a communication connector fixedly connected with the unlocking rod and a connecting rod in contact with the communication connector, wherein the connecting rod passes through the inner cavity of the unlocking rod.

According to some aspects of the invention, the unlocking lever further comprises a groove communicating with its inner cavity, such that a wire extending from the connecting rod is led out from the inner cavity of the unlocking lever, through the groove, to the outside of the unlocking lever and the lever, and does not interfere with the moving lever and the movable shaft of the actuator.

According to some aspects of the invention, the unlocking mechanism further comprises an identifier coaxially arranged with the loop bar, the identifier comprising an RFID reader device.

According to some aspects of the invention, the unlocking mechanism further comprises: a base for supporting the unlocking lever and the loop bar; 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 loop bar.

The second aspect of the technical scheme of the invention is a lockset which comprises the unlocking mechanism. The lock may be implemented as various device management locks, intelligent electronic locks, and the like.

The invention provides an improved unlocking mechanism and a lockset with high reliability, simple structure and compact volume, wherein the technical improvement or beneficial effects of the details are as follows: the spherical parts circumferentially arranged at different angles can solve the technical problem that the movable shaft of the actuator can smoothly return in any rotating process of the loop bar; the movable shaft with the groove at the shaft shoulder position can avoid the vibration of the unlocking mechanism or the lockset, and avoid the locking failure caused by the downward movement of the movable shaft in the actuator due to inertia; the spring ball supporting structure of the base to the loop bar improves the stability of the coaxial movement between the unlocking bar and the loop bar, thereby improving the fluency of the unlocking process; the torsional connection position of the unlocking rod and the loop bar can adopt a square shaft structure, so that the torsional strength is high, and the locking failure caused by the idle rotation of the shaft sleeve due to manual damage can be avoided; providing an identifier based on RFID technology, and judging to unlock through the identity information recorded by the RFID chips; providing a conductive contact element of the communication device that does not interfere with and twist the conductive contact element and its wires even during rotation of the loop bar; a position sensor and a matched circuit are provided, and the opening and closing states of the unlocking mechanism or the lockset can be judged by monitoring the rotation position of the loop bar.

Drawings

Fig. 1 shows an exploded view of an unlocking mechanism according to the invention in an embodiment.

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

Fig. 3 shows a front cross-sectional view of the unlocking mechanism of fig. 2.

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

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

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

Detailed Description

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

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 or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in the present invention are merely with respect to the mutual positional relationship of the constituent elements 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 presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure 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 also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure.

Fig. 1 and 2 show an exploded schematic view and an assembled perspective view of an unlocking mechanism according to the invention. The unlocking mechanism mainly comprises an actuator 1, an unlocking lever 2, a loop lever 3 and a ball member 81. The actuator 1, the unlocking rod 2 and the loop bar 3 are coaxially assembled as shown in fig. 3, wherein the unlocking rod 2 and the loop bar 3 are of a hollow structure, the loop bar 3 is sleeved outside the unlocking rod 2, and the outer diameter of a movable shaft 10 of the actuator 1 is matched with the inner diameter of a 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 this embodiment, the unlocking lever 2 is provided with at least one aperture 22 radially penetrating into the inner cavity, and the sleeve lever 3 is provided with at least one hole portion 31. The dimensions of the aperture 22 and the bore portion 31 are slightly larger or substantially match the diameter of the ball member 81 such that the ball member 81 is movable within the aperture 22 and the bore portion 31 in the radial direction of the unlocking lever 2 and the socket lever 3. When the unlocking lever 2 and the loop lever 3, which are assembled in place, are relatively rotated about their common axis, the aperture 22 and the hole portion 31 can be caused to meet in the radial direction. Therefore, when the movable shaft 10 restricts a part of the ball member 81 from being accommodated in the orifice 22 and another part from being accommodated in the hole portion 31, the ball member 81 can restrict the rotation between the socket rod 3 with respect to the unlocking lever 2. When the movable shaft 10 of the actuator 1 allows the ball member 81 to leave the hole portion 31 of the rod 3, the rod 3 can be rotated 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 catching hole 92 intersecting the receiving hole 91. In this embodiment, the unlocking structure according to the present invention may further include a ball 82; the pin 84 is fixed in the clamping hole 92; a compression spring 83 disposed in the accommodation hole 91 between the pin 84 and the ball 82. The spring 83 deforms by itself under the limit action of the pin 84 to form a pressure pushing ball 82 to press against 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 peripheral wall. The cross-section of the annular track 32 may be a semicircle or smaller circle having a corresponding diameter dimension that matches or is substantially equal to the diameter of the ball 82. The spring 83 ball 82 supporting structure of the loop bar 3 is supported by the base 9, so that the stability of coaxial movement between the unlocking bar 2 and the loop bar 3 is improved, and the smoothness of the unlocking process is further improved.

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

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

As shown in fig. 4, in the locked position, the movable shaft 10 of the actuator 1 is extended, the shoulder 101 abuts against the ball member 81, and the ball member 81 is held simultaneously in the orifice 22 of the unlocking lever 2 and the hole portion 31 of the lock lever 3, and therefore the lock lever 3 and the unlocking lever 2 are simultaneously restricted by the ball member 81 so that they cannot rotate relatively.

As shown in fig. 5, in the unlocked position, the movable shaft 10 of the actuator 1 is retracted and the shoulder 101 is moved away from the aperture 22 of the unlocking 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 member 81 can be formed between the outer wall of the unlocking lever 2 and the outer periphery of the end of the movable shaft 10, so that the ball member 81 can be forced to be pushed toward the inner cavity of the unlocking lever 2 during the rotation of the socket lever 3. Thereby, the rotation restriction between the loop bar 3 and the unlocking bar 2 is released.

Referring to fig. 6, in some embodiments, a groove 102 may be provided on the shoulder 101 of the movable shaft 10, the cross-sectional profile of the groove 102 matching a portion of the circumferential profile of the ball element 81. The movable shaft 10 with the groove 102 at the position of the shaft shoulder 101 can avoid the vibration of the unlocking mechanism or the lockset and avoid the locking failure caused by the downward movement of the movable shaft 10 in the actuator 1 due to inertia. In addition, a transition structure such as a chamfer 103 (as shown in fig. 6) or a round corner may be provided between the shoulder 101 and the end of the movable shaft 10, so that the ball member 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 apertures 22 may be provided distributed along the circumference of the unlocking lever 2, and spaced apart by a predetermined angle. Each aperture 22 may be provided with a ball member 81. Because the plurality of ball members 81 are distributed in different angles, the problem that the external unlocking key is blocked and cannot be pulled out due to the fact that the actuator 1 which does not reach the initial position returns in the rotating process of the loop bar 3 relative to the unlocking bar 2360 degrees can be solved. For example, when the electronic key is powered off in the process of unlocking by authorization, the electromagnet returns to the original position in the process of key rotation, so that the key is blocked and cannot be pulled out.

Referring to fig. 1 and 3, in some embodiments, the unlocking lever 2 extends a lever seat 21 communicating with the cavity, the lever seat 21 being connected with the fixed part of the actuator 1 by means of a fastener. The rod seat 21 of the unlocking rod 2 may have a countersunk portion or a square structure to improve torsional strength. The sleeve rod 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 locking failure caused by idle running of the shaft sleeve due to artificial damage can be avoided.

In some embodiments, the unlocking mechanism according to the present invention further comprises: a base 9 for supporting the unlocking 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, provided on the PCB5 for sensing the rotational position of the loop bar 3. The unlocking mechanism according to the invention further comprises an identifier 4 arranged coaxially to said loop bar 3. The identifier 4 comprises an RFID reader device and can be unlocked by judging the identity information recorded by the RFID chip. 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 device that may power a lock electrical component (e.g., an electronic key) external to the unlocking mechanism via a wireless power supply coil and communicate via its internal wireless communication.

In some embodiments, the unlocking mechanism further comprises a communication connector 6 fixedly connected with the unlocking lever 2 and a connecting rod 7 in contact with the communication connector 6. The unlocking lever 2 may be provided with a pin hole 23, and the communication connector 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 unlocking lever 2 may be provided with an "L" -shaped groove 24 communicating with the inner cavity. The groove 24 extends from the inner cavity to the outside of the unlocking lever 2 and along the outer wall to the portion of the lever seat 21 of the unlocking lever 2. Also, as shown in the sectional view of fig. 4, there is a wall space between the groove 24 and the cavity in which 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 unlocking lever 2 to the outside of the unlocking 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.

Conductive communication contacts may be provided on the communication terminal 6 and then power and communication operations may be performed to external lockset electrical components via a single bus. The conductive contact element is provided so as not to interfere with and twist the conductive contact element and its wires even during rotation of the socket 3.

The lock according to the invention comprises the unlocking mechanism. The lockset can be used for various equipment management locks, intelligent electronic locks and the like.

The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present disclosure. Are intended to fall within the scope of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.

Claims

1. An unlocking mechanism, comprising:

at least one ball element (81);

-an unlocking lever (2) having a cylindrical inner cavity, the unlocking lever (2) being provided with at least one aperture (22) radially penetrating into said inner cavity, the aperture (22) being sized to fit the diameter of said ball element (81), said unlocking lever (2) further comprising a groove (24) communicating with its inner cavity;

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

A connecting rod (7) in contact with the communication connector (6), wherein the connecting rod (7) passes through the inner cavity of the unlocking rod (2);

A loop bar (3) sleeved on the unlocking bar (2), wherein the loop bar (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 an inner diameter of a lumen of the unlocking lever (2) and allowing the movable shaft (10) to move axially in the lumen between a first position and a second position, wherein:

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

In the second position, the movable shaft (10) allows the ball member (81) to be disengaged from the hole portion (31) of the lock lever (3) to release the rotation restriction of the lock lever (3) with respect to the unlocking lever (2); and

The wire extending from the connecting rod (7) is led out of the unlocking rod (2) and the sleeve rod (3) from the inner cavity of the unlocking rod (2) through the groove (24) and does not interfere with the moving sleeve rod (3) and the movable shaft (10) of the actuator (1).

2. The unlocking mechanism of claim 1, wherein: the plurality of holes (22) are distributed along the circumferential direction of the unlocking rod (2) and are spaced at preset angles.

3. The unlocking mechanism of claim 1, wherein: the unlocking lever (2) extends a lever seat (21) communicating with the inner cavity, the lever 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 into the interaction position of the orifice (22) and the inner cavity.

4. The unlocking mechanism of claim 1, wherein: the movable shaft (10) comprises a groove (102) arranged on the shaft shoulder (101), and the cross-section contour of the groove (102) is matched with a part of the circumference contour of the sphere (81).

5. An unlocking mechanism according to claim 1, the unlocking mechanism is characterized by further comprising:

A base (9), the base (9) being fixed to the unlocking lever (2) and for supporting the loop lever (3) for rotation, the base (9) comprising at least one receiving hole (91) and a clamping hole (92) intersecting the receiving hole (91);

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

the pin shaft (84) is 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 on the peripheral wall of the loop bar (3) under the limit 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. Unlocking mechanism according to claim 5, characterized in that the loop bar (3) comprises a ring rail (32) arranged at the peripheral wall, the circular cross-sectional dimension of the part of the ring rail (32) matching the diameter of the balls (82).

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

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

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

One or more sensors (51) provided on the PCB (5) for detecting a rotational position of the loop bar (3); and

An identifier (4) arranged coaxially with the loop bar (3), the identifier (4) comprising an RFID reader device and/or a wireless power coil.

8. A lock comprising an unlocking mechanism according to any one of claims 1 to 7.