Clutch type electronic lock

Abstract

The utility model discloses a clutch type electronic lock which comprises a shell, a driving assembly, a transmission part, a locking assembly and a manual unlocking assembly. The driving assembly is mounted in the shell; the transmission part is installed in the shell and connected with the power output end of the driving assembly. The locking assembly is rotationally arranged on the transmission part in a sleeving mode, and the driving assembly can drive the transmission part to rotate so as to drive the locking assembly to move, so that the locking assembly can move between an unlocking position and a locking position in a reciprocating mode relative to the shell; the manual unlocking assembly is movably arranged in the shell and can move between a first position and a second position in a reciprocating mode, and when the manual unlocking assembly moves from the first position to the second position, the manual unlocking assembly drives the locking assembly to rotate relative to the transmission piece under the condition that the transmission piece does not rotate, and then the manual unlocking assembly moves from the locking position to the unlocking position. The structure of the clutch type electronic lock is simplified, and meanwhile manual unlocking is effectively achieved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic locks, and in particular to a clutch type electronic lock. Background Art

[0002] The technical development of electronic locks has gone through several stages. The first stage is to use a motor with a multi-stage reduction gear to drive the lock tongue to lock and unlock. In order to overcome the resistance of the transmission mechanism, a motor with a large output torque is often required, and the overall volume of the electronic lock is also large; in the second stage, in order to reduce the volume of the electronic lock, a small torque motor is used with a multi-stage planetary gear reduction. The use of a smaller motor and gearbox can meet the requirements of overcoming the resistance of the transmission mechanism, and the volume of the electronic lock can also be reduced. However, when the user needs to manually unlock, it is necessary to overcome a large resistance. The resistance mainly comes from the reverse acceleration of the reduction gearbox, resulting in a poor user experience; in the third stage, in order to reduce the resistance during manual unlocking, a clutch structure is used, that is, when manually unlocking, the contact nut has the freedom to rotate along the axis, so that the reduction gearbox no longer needs to be driven to reversely accelerate during the unlocking process, which greatly reduces the resistance to manual unlocking. However, although the existing clutch electronic lock can achieve the goal of reducing the resistance to manual unlocking, its structure is relatively complex, inconvenient to assemble, and the cost is high. At the same time, the relatively complex structure has an adverse effect on the stability of product performance. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a clutch-type electronic lock that can solve the above-mentioned problems existing in the prior art, simplify the structure of the clutch-type electronic lock, and effectively realize manual unlocking.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, a clutch-type electronic lock is provided, comprising: a shell, a drive assembly, a transmission member and a manual unlocking assembly; the drive assembly is installed in the shell; the transmission member is installed in the shell and is connected to the power output end of the drive assembly; the locking assembly is rotatably sleeved on the transmission member, and the drive assembly can drive the transmission member to rotate, thereby driving the locking assembly to move, so that the locking assembly can reciprocate between an unlocking position and a locking position relative to the shell; the manual unlocking assembly is movably arranged in the shell and can reciprocate between a first position and a second position, and when the manual unlocking assembly moves from the first position to the second position relative to the shell, it drives the locking assembly to rotate relative to the transmission member without rotating, and then moves from the locking position to the unlocking position.

[0006] Optionally, the manual unlocking assembly includes a pull rod and a pull rope, one end of the pull rope is connected to the pull rod, and the other end extends out of the shell, the pull rope can pull the pull rod from a first position to a second position, when the pull rod is in the first position, the locking assembly is locked by the pull rod and cannot rotate, when the pull rod is in the second position, the locking assembly rotates to unlock.

[0007] Optionally, a groove is provided on the outer wall surface of the locking assembly, and the pull rod is provided with a convex portion protruding toward the groove, and the convex portion is slidably set in the groove. When the pull rod is in the first position, the convex portion is embedded in the groove, and when the pull rod is in the second position, the convex portion is disengaged from the groove.

[0008] Optionally, an abutment portion is protruded from one end of the pull rod away from the pull rope toward the locking assembly, and the abutment portion can abut against the locking assembly to thereby drive the locking assembly to move relative to the housing.

[0009] Optionally, the locking assembly includes a sleeve and a locking rod, the sleeve is rotatably sleeved on the transmission member, the locking rod is fixed to one end of the sleeve facing away from the transmission member, and one end of the locking rod can extend relative to the shell, the groove is opened on the outer wall surface of the sleeve, and the abutment portion can abut against the sleeve and then drive the sleeve and the locking rod to move.

[0010] Optionally, a first seal is provided between the locking rod and the housing, and / or a second seal is provided between the pull rope and the housing.

[0011] Optionally, the transmission member is a screw rod, and the screw rod and the screw sleeve are rotationally connected via a threaded structure.

[0012] Optionally, an elastic member is provided between the pull rod and the inner wall surface of the shell, and the elastic member can make the pull rod always have a tendency to move toward the first position.

[0013] Optionally, it also includes a signal feedback component, which squeezes the signal feedback component when the locking component is in the locked position, and the signal feedback component feeds back a closed-circuit signal; when the locking component is in the unlocked position, it is disengaged from the signal feedback component, and the signal feedback component feeds back a closed-circuit signal.

[0014] Optionally, the signal feedback component includes a circuit board installed in the shell, and a limit switch installed on the circuit board. When the locking component squeezes the limit switch, the circuit board feeds back a closed-circuit signal. When the locking component is separated from the limit switch, the circuit board feeds back an open-circuit signal.

[0015] The beneficial effects of the present application are as follows: when the electronic lock can be locked and unlocked normally, the driving component drives the transmission member to rotate, and the transmission member is connected to the locking component, and the rotation is converted into a linear movement of the locking component, so that the locking component can automatically reciprocate between the unlocking position and the locking position. When a circuit system fails and the driving component cannot be used to control the unlocking of the electronic lock or the structure is stuck and cannot be unlocked, the manual unlocking component can be used to drive the locking component to move, so that the locking component can rotate without the transmission member rotating, and then the rotation is converted into a linear movement to complete the unlocking action. The overall structure is simple, the operation method is also simple, the structural layout of the electronic lock is optimized, the assembly is simple, the cost is reduced, and the stability of the electronic lock performance can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described in detail below based on the drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the clutch type electronic lock described in the embodiment of the present application;

[0018] Figure 2 This is an exploded schematic diagram of the clutch-type electronic lock described in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the locked state of the clutch type electronic lock according to the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the unlocked state of the clutch type electronic lock according to the embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the locking assembly described in the embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of the screw sleeve described in the embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the structure of the manual unlocking component described in an embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of the assembly of the locking assembly and the manual unlocking assembly described in an embodiment of the present application.

[0025] In the figure:

[0026] 1. Shell; 101. First shell; 102. Second shell; 2. Drive assembly; 3. Transmission member; 4. Locking assembly; 401. Screw sleeve; 402. Locking rod; 403. Groove; 4011. First subdivision; 4012. Second subdivision; 4031. Sharp-angle structure; 5. Manual unlocking assembly; 501. Pull rod; 502. Pull rope; 503. Abutment portion; 504. Protrusion; 5031. Arc portion; 6. Elastic member; 7. First sealing member; 8. Second sealing member; 9. Signal feedback assembly; 901. Circuit board; 902. Limit switch; 903. Wires. DETAILED DESCRIPTION

[0027] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0028] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] like Figure 1-Figure 8As shown, this embodiment provides a clutch-type electronic lock, which includes: a housing 1, a driving assembly 2, a transmission member 3, a locking assembly 4 and a manual unlocking assembly 5; the driving assembly 2 is installed in the housing 1; the transmission member 3 is installed in the housing 1 and is connected to the power output end of the driving assembly 2; the locking assembly 4 is rotatably sleeved on the transmission member 3, the driving assembly 2 can drive the transmission member 3 to rotate, and then drive the locking assembly 4 to move, so that the locking assembly 4 can reciprocate between the unlocking position and the locking position relative to the housing 1; the manual unlocking assembly 5 is movably arranged in the housing 1 and can reciprocate between a first position and a second position, and when the manual unlocking assembly 5 moves from the first position to the second position relative to the housing 1, it drives the locking assembly 4 to rotate relative to the transmission member 3 without rotating, and then moves from the locking position to the unlocking position.

[0031] Based on the above scheme, a space for accommodating the installation of various components is formed in the shell 1, and the drive component 2, the transmission member 3 and the manual unlocking component 5 are installed in the divided area in the shell 1 for assembly, which can improve the assembly efficiency and installation accuracy. After the installation is completed, the drive component 2 can drive the transmission member 3 to rotate, and the rotation of the transmission member 3 is converted into a linear movement of the locking component 4, so that the locking component 4 can move repeatedly between the unlocking position and the locking position. When the locking component 4 is in the unlocking position, the electronic lock is in an unlocking state, and when the locking component 4 is in the locking position, the electronic lock is in a locked state; when the electronic lock fails and cannot be automatically unlocked, it can be manually unlocked through the manual unlocking component 5. Specifically, the manual unlocking component 5 can move between the first position and the second position. When the manual unlocking component 5 is in the first position, it can contact the locking component 4. Then, the rotation of the locking assembly 4 is limited, that is, the locking assembly 4 cannot rotate with the rotation of the transmission member 3, and can only convert the rotation into linear movement. When the manual unlocking assembly 5 moves from the first position to the second position, the manual unlocking assembly 5 has at least two sequential actions during the movement. The first is that the manual unlocking assembly 5 releases the limitation on the rotation of the locking assembly 4, that is, the locking assembly 4 can obtain the degree of freedom of rotation along the axis. After the locking assembly 4 can rotate freely, the manual unlocking assembly 5 can abut against the locking assembly 4 to make the locking assembly 4 move toward the unlocking position. At this time, the locking assembly 4 can rotate freely without the transmission member 3 rotating, and then convert the rotation relative to the transmission member 3 into linear movement relative to the housing 1. When the manual unlocking assembly 5 is in the second position, the locking assembly 4 also moves to the unlocking position to complete the unlocking action of the electronic lock. This scheme optimizes the layout of the complex internal structure of the existing clutch electronic lock, simplifies the assembly relationship between the manual unlocking assembly 5 and the locking assembly 4, and then simplifies the assembly structure inside the housing 1, and the unlocking operation is also easy, while ensuring the stability of the clutch electronic lock.

[0032] The locking member 401 is unlocked by the spring 502 and the locking member 402 is unlocked by the spring 503. 1 is the top of the leftmost end face, when the pull rod 501 is in the first position, the protrusion 504 will be embedded in the groove 403, so that the screw sleeve 401 cannot rotate, and can only convert the rotation of the transmission member 3 into a linear motion. When the pull rod 501 gradually moves from the first position to the second position, the protrusion 504 will slide in the groove 403 and then disengage from the groove 403. When the protrusion 504 disengages from the groove 403, the rotation restriction of the screw sleeve 401 is released, and the screw sleeve 401 obtains the freedom to rotate along its axis. During the process of the pull rod 501 continuing to move to the second position, the abutment 503 can move against the screw sleeve 401, and the screw sleeve 401 rotates relative to the transmission member 3 and then transforms into moving to the right relative to the housing 1, and the locking rod 402 synchronously follows the screw sleeve 401 to move. When the pull rod 501 moves to the second position, the screw sleeve 401 and the locking rod 402 synchronously move to the unlocking position to complete the manual unlocking action of the electronic lock. In addition, the screw sleeve 401 and the locking rod 402 are an integrally formed part, so that the structure is simpler, the stability is better, and the cost is lower.

[0033] Furthermore, the transmission member 3 is a screw, and the screw sleeve 401 is rotatably sleeved on the screw from its right end, the left end of the screw sleeve 401 is fixedly connected to the locking rod 402, and the left end of the locking rod 402 can extend relative to the shell 1; the screw and the screw sleeve 401 are rotatably connected via a threaded structure. In this scheme, a threaded structure is provided on the outer circumference of the screw, and a corresponding threaded structure is provided inside the screw sleeve 401. The two are rotationally matched through the threaded structure. When the protrusion 504 of the pull rod 501 is engaged in the groove 403 of the screw sleeve 401, the screw rotates. Since the rotation of the screw sleeve 401 is restricted, it can only move linearly relative to the screw through the threaded structure. When the screw sleeve 401 obtains the freedom of rotation along the axis, the screw sleeve 401 can rotate along the axis driven by the abutment 503 of the pull rod 501 while the screw remains stationary. Since the screw does not rotate, the rotation can be converted into a linear movement to the right at this time, and then the lock rod 402 is synchronously driven to move in the direction of the unlocking position, thereby completing the manual unlocking action of the electronic lock.

[0034] Furthermore, in order to realize the automatic reset of the pull rod 501 from the second position to the first position, an elastic member 6 is arranged between the pull rod 501 and the inner wall surface of the housing 1. When the pull rod 501 moves from the first position to the second position, the pull rod 501 will compress the elastic member 6 to shrink it, and when the force acting on the pull rod 501 to move to the right side is removed, the elastic member 6 will drive the pull rod 501 to move from the second position to the first position to complete the automatic reset through its elasticity. After the pull rod 501 completes the reset, its convex portion 504 will be re-engaged in the groove 403 of the screw sleeve 401 to limit the rotation of the screw sleeve 401. At the same time, in order to facilitate the convex portion 504 to be engaged in the groove 403, the opening ends of the groove 403 are designed as acute angle structures, and the corresponding convex portion 504 is designed as an acute angle structure 4031 relative to the groove 403. In this way, the error tolerance rate is higher during the insertion process. In simple terms, the position can be adjusted by the acute angle structure 4031 in the case of not being fully aligned, thereby completing the accurate insertion.

[0035] It is worth mentioning that the screw sleeve 401 is designed to be a stepped structure, namely, a first division 4011 and a second division 4012. The diameter of the first division 4011 is larger than the diameter of the second division 4012. A groove 403 is provided on the outer wall of the first division 4011, and the abutting portion 503 abuts against the left end face of the second division 4012. The locking rod 402 is inserted into the second division 4012 and does not pass through the first division 4011. At the same time, the abutting portion 503 is provided with a matching arc portion 5031 toward the second division 4012, which can provide a guiding effect for the movement of the screw sleeve 401 and abut against the left end face of the first division 4011.

[0036] In addition, there may be multiple grooves 403 on the screw sleeve 401, and the grooves 403 are evenly spaced apart. This is to facilitate the protrusion 504 to still cooperate with the grooves 403 to limit the rotation of the screw sleeve 401 after the relative position of the screw sleeve 401 and the pull rod 501 changes after rotation.

[0037] Preferably, a first seal 7 is provided between the lock rod 402 and the housing 1, and a second seal 8 is provided between the pull rope 502 and the housing 1. Since the lock rod 402 and the pull rope 502 are both provided through the housing 1, seals are provided respectively to ensure the sealing inside the electronic lock.

[0038] In some embodiments, a signal feedback component 9 is further included. When the locking component 4 is in the locked position, the signal feedback component 9 is squeezed, and the signal feedback component 9 feeds back a closed-circuit signal; when the locking component 4 is in the unlocked position, it is disengaged from the signal feedback component 9, and the signal feedback component 9 feeds back a closed-circuit signal.

[0039] Specifically, the signal feedback component 9 includes a circuit board 901 installed in the housing 1, and a limit switch 902 installed on the circuit board 901. The locking component 4 squeezes the limit switch 902, and the circuit board 901 feeds back a closed-circuit signal. The locking component 4 is separated from the limit switch 902, and the circuit board 901 feeds back an open-circuit signal. The limit feedback component also includes a wire 903, and the circuit board 901 can be connected to an external control system through the wire 903 to complete the line transmission of the open-circuit signal and the closed-circuit signal.

[0040] Optionally, the driving assembly 2 includes a driving motor and a reduction gear box, the driving motor drives the screw to rotate after passing through the reduction gear box, and the screw drives the screw sleeve 401 and the locking rod 402 to move left and right. In addition, the housing 1 includes a detachable first shell 101 and a second shell 102, and the second shell 102 is covered on the first shell 101, which is convenient for disassembly to assemble, repair or replace the internal parts.

[0041] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0043] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0044] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A clutch type electronic lock, characterized in that: include: Housing (1); A drive assembly (2) installed in the housing (1); A transmission member (3) is installed in the housing (1) and connected to the power output end of the drive assembly (2); A locking assembly (4) is rotatably sleeved on the transmission member (3), and the driving assembly (2) is capable of driving the transmission member (3) to rotate, thereby driving the locking assembly (4) to move, so that the locking assembly (4) can reciprocate between an unlocking position and a locking position relative to the housing (1); A manual unlocking component (5) is movably arranged in the housing (1) and is capable of reciprocating between a first position and a second position. When the manual unlocking component (5) moves from the first position to the second position relative to the housing (1), it drives the locking component (4) to rotate relative to the transmission component (3) without the transmission component (3) rotating, and then moves from the locking position to the unlocking position.

2. The clutch type electronic lock according to claim 1, characterized in that: The manual unlocking assembly (5) includes a pull rod (501) and a pull rope (502), one end of the pull rope (502) is connected to the pull rod (501), and the other end extends out of the housing (1), the pull rope (502) can pull the pull rod (501) from a first position to a second position, when the pull rod (501) is in the first position, the locking assembly (4) is locked by the pull rod (501) and cannot rotate, when the pull rod (501) is in the second position, the locking assembly (4) rotates and unlocks.

3. The clutch type electronic lock according to claim 2, characterized in that: The outer wall surface of the locking assembly (4) is provided with a groove (403), and the pull rod (501) is provided with a convex portion (504) protruding toward the groove (403). The convex portion (504) is slidably arranged in the groove (403). When the pull rod (501) is in a first position, the convex portion (504) is embedded in the groove (403); when the pull rod (501) is in a second position, the convex portion (504) is disengaged from the groove (403).

4. The clutch type electronic lock according to claim 3, characterized in that: An abutment portion (503) is provided on one end of the pull rod (501) away from the pull rope (502) and protrudes in the direction of the locking assembly (4); the abutment portion (503) can abut against the locking assembly (4) and thereby drive the locking assembly (4) to move relative to the housing (1).

5. The clutch type electronic lock according to claim 4, characterized in that: The locking assembly (4) comprises a screw sleeve (401) and a locking rod (402); the screw sleeve (401) is rotatably sleeved on the transmission member (3); the locking rod (402) is fixed to an end of the screw sleeve (401) which is away from the transmission member (3); and one end of the locking rod (402) can extend relative to the housing (1); the groove (403) is provided on the outer wall surface of the screw sleeve (401); the abutting portion (503) can abut against the screw sleeve (401) and thereby drive the screw sleeve (401) and the locking rod (402) to move.

6. The clutch type electronic lock according to claim 5, characterized in that: A first sealing member (7) is provided between the locking rod (402) and the housing (1), and / or a second sealing member (8) is provided between the pull rope (502) and the housing (1).

7. The clutch type electronic lock according to claim 5, characterized in that: The transmission member (3) is a screw rod, and the screw rod is rotationally connected to the screw sleeve (401) via a threaded structure.

8. The clutch type electronic lock according to claim 2, characterized in that: An elastic member (6) is provided between the pull rod (501) and the inner wall surface of the housing (1), and the elastic member (6) enables the pull rod (501) to always have a tendency to move towards the first position.

9. The clutch type electronic lock according to any one of claims 1 to 8, characterized in that: It also comprises a signal feedback component (9), which is pressed when the locking component (4) is in the locking position, and the signal feedback component (9) feeds back a closed-circuit signal; and is separated from the signal feedback component (9) when the locking component (4) is in the unlocking position, and the signal feedback component (9) feeds back a closed-circuit signal.

10. The clutch type electronic lock according to claim 9, characterized in that: The signal feedback component (9) comprises a circuit board (901) installed in the housing (1), and a limit switch (902) installed on the circuit board (901); when the locking component (4) presses the limit switch (902), the circuit board (901) feeds back a closed-circuit signal; when the locking component (4) is separated from the limit switch (902), the circuit board (901) feeds back an open-circuit signal.

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