Motor driving mechanism and cabinet lock

Abstract

The utility model discloses a motor driving mechanism and a cabinet lock. The motor driving mechanism comprises a shell assembly. The motor is arranged in the shell assembly; the speed reduction transmission assembly is in transmission connection with the motor; the rotating rod assembly is rotationally arranged in the shell assembly and is in transmission connection with the motor through the speed reduction transmission assembly; the transmission assembly is movably arranged on the rotating rod assembly in a penetrating mode and comprises a transmission piece and a spring which are movably arranged on the rotating rod assembly in a penetrating mode, and the two ends of the spring are in contact connection with the transmission piece; when the rotating rod assembly rotates, the rotating rod assembly compresses the spring to drive the transmission part to move in the axial direction of the rotating rod assembly. The motor, the rotating rod and the spring are matched for driving to achieve unlocking operation, and the problem that normal unlocking cannot be achieved sometimes when the motor drives the screw to move at low temperature is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive mechanisms, and in particular to a motor drive mechanism and a cabinet lock. Background Art

[0002] With the rapid development of the logistics industry, sending and receiving express parcels has become an indispensable part of people's daily life. However, when delivering parcels, couriers often encounter situations where customers are not at home, which brings great inconvenience to couriers. In order to solve the above problems, many residential areas or communities have installed self-service express lockers for couriers to deliver parcels.

[0003] The express cabinet locks in the prior art generally use electromagnetic drive or motor drive to perform switch lock operations. The express cabinet locks using motor drive mainly realize unlocking operation by driving the thread movement driven by the motor. However, the screw-driven unlocking method has high requirements on the stability of the motor's output power. In the usage scenario with lower temperature, the output power of the motor will be reduced, resulting in insufficient rotation angle of the screw, resulting in the situation that the lock cannot be unlocked. At the same time, due to the strong limiting effect of the thread on the screw, if the output parameters of the motor are adjusted too large at the beginning, the service life of the motor will be reduced to a certain extent. Therefore, a motor drive mechanism and a cabinet lock are provided to solve the problem that the motor-driven screw movement sometimes cannot unlock normally at low temperatures. Utility Model Content

[0004] One of the purposes of the utility model is to provide a motor drive mechanism and a cabinet lock, so as to solve the problem that the motor drives the screw rod to move and sometimes cannot open the lock normally at low temperature.

[0005] The utility model provides a motor drive mechanism and a cabinet lock through the following technical solutions:

[0006] The utility model discloses a motor drive mechanism comprising a housing assembly; a motor, which is arranged in the housing assembly and can rotate forward and reverse; a reduction transmission assembly, which is transmission-connected with the motor; a rotating rod assembly, which is rotationally arranged in the housing assembly and transmission-connected with the motor through the reduction transmission assembly; a transmission assembly, which is movably arranged on the rotating rod assembly;

[0007] Wherein, the transmission assembly includes a transmission member and a spring which are movably arranged on the rotating rod assembly, and both ends of the spring are respectively in contact and connected with the transmission member; when the rotating rod assembly rotates, the rotating rod assembly compresses the spring to drive the transmission member to move in the axial direction of the rotating rod assembly.

[0008] In one embodiment, the rotating rod assembly includes a rotating rod, both ends of which are movably arranged on the housing assembly and fixedly connected to the reduction transmission assembly; at least one protruding rod is transversely arranged on the rotating rod, which is arranged on the spiral coil of the spring and can move relatively along the spiral direction of the spiral coil.

[0009] In one embodiment, the rotating rod and at least one of the convex rods are integrally formed or assembled.

[0010] In one embodiment, the housing assembly includes a main housing having an accommodating cavity therein, wherein the motor is disposed in the accommodating cavity; and a cover plate fixedly disposed on the main housing.

[0011] In one embodiment, rotation notches are respectively provided at corresponding positions at both ends of the main shell and the cover plate, and both ends of the rotation rod are movably provided in rotation holes formed by the two corresponding rotation notches.

[0012] In one embodiment, the reduction transmission assembly adopts a single-stage reduction transmission structure or a multi-stage reduction transmission structure.

[0013] In one embodiment, when the reduction transmission assembly is a single-stage reduction transmission structure, the reduction transmission assembly includes a driving pinion and a transmission gear that are meshingly connected; the driving pinion is fixedly disposed on the rotating shaft of the motor; and the rotating rod assembly is fixedly disposed on the transmission gear.

[0014] In one embodiment, a connecting hole is provided at one end of the transmission member away from the reduction transmission assembly.

[0015] The utility model provides a cabinet lock comprising any one of the above-mentioned motor drive mechanisms.

[0016] In one embodiment, a cabinet lock of the utility model further includes a lock shell and a lock beam mechanism and a lock hook mechanism which are movably arranged in the lock shell; the motor drive mechanism is transmission-connected with the lock beam mechanism; the lock beam mechanism and the lock hook mechanism are detachably engaged, and when the motor drive mechanism drives the lock beam mechanism to rotate, the lock beam mechanism and the lock hook mechanism are disengaged.

[0017] Compared with the prior art, the motor drive mechanism and cabinet lock of the utility model have the following beneficial effects:

[0018] The utility model discloses a motor drive mechanism and a cabinet lock, which realizes unlocking operation by driving the motor, a rotating rod and a spring, and effectively solves the problem that the motor-driven screw rod movement sometimes cannot unlock normally under low temperature; at the same time, the output parameters of the drive motor can be set according to the low temperature standard, and under normal temperature conditions, even if the speed of the drive motor is too high, the spring itself will not strongly limit the rotation of the drive motor; the drive motor only idles without damaging itself; thus, the cabinet lock body can be applied to low temperature, normal temperature or high temperature environment at the same time;

[0019] The utility model provides a motor drive mechanism and a cabinet lock, by respectively integrating a motor, a reduction transmission component, a rotating rod component and a transmission component in a shell component, so that the motor drive mechanism in the cabinet lock can be conveniently installed or replaced as a whole, and the assembly efficiency or replacement efficiency of the cabinet lock can be improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of a motor drive mechanism of the utility model;

[0022] Figure 2 yes Figure 1 The cross-sectional structure diagram of a motor drive mechanism of the utility model is shown;

[0023] Figure 3 yes Figure 1 The schematic diagram of the internal structure of a motor drive mechanism of the utility model without the cover plate is shown;

[0024] Figure 4 yes Figure 1 The exploded structural diagram of a motor drive mechanism of the utility model shown in the figure includes a rotating rod assembly and a transmission member;

[0025] Figure 5 yes Figure 4 A schematic structural diagram of the rotating rod assembly shown;

[0026] Figure 6 yes Figure 4 A schematic diagram of the structure of the transmission member shown;

[0027] Figure 7 The utility model is a structural schematic diagram of a cabinet lock.

[0028] Indications in the figure: 10, motor drive mechanism; 11, housing assembly; 111, main housing; 1111, accommodating chamber; 1112, rotating notch; 1113, through hole; 112, cover plate; 12, motor; 13, reduction transmission assembly; 131, driving pinion; 132, transmission gear; 14, rotating rod assembly; 141, rotating rod; 142, protruding rod; 15, transmission assembly; 151, transmission member; 1511, through hole; 1512, connecting hole; 152, spring; 20, lock housing; 30, lock beam mechanism; 40, lock hook mechanism. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 4 As shown, the utility model is a motor drive mechanism 10 which mainly includes a shell assembly 11, a motor 12, a reduction transmission assembly 13, a rotating rod assembly 14 and a transmission assembly 15; the shell assembly 11 is a hollow cavity, which is a supporting body; the motor 12 is fixedly arranged in the shell assembly 11, and can be rotated forward and reversely; one end of the reduction transmission assembly 13 is transmission-connected to the motor 12, and the other end thereof is fixedly connected to the rotating rod assembly 14, and the motor 12 drives the rotating rod assembly 14 to rotate relative to the shell assembly 11 through the reduction transmission assembly 13; the transmission assembly 15 is movably arranged on the rotating rod assembly 14; when the rotating rod assembly 14 rotates, the rotating rod assembly 14 compresses the transmission assembly 15, so that the transmission assembly 15 moves in the axial direction of the rotating rod assembly 14.

[0032] See also Figure 1-Figure 4As shown, in this embodiment, the housing assembly 11 includes a main housing 111 and a cover plate 112; the main housing 111 is a hollow cavity, in which a receiving cavity 1111 is provided, and the motor 12 is provided in the receiving cavity 111, and the motor 12 is fixed by the cooperation of the receiving cavity 111 and the cover plate 112; the cover plate 112 is fixed on the main housing 111 by a snap structure or a screw structure. Specifically, corresponding positions at both ends of the main housing 111 and the cover plate 112 are respectively provided with rotation notches 1112, and the two ends of the rotating rod assembly 14 are respectively movably provided in the rotating holes formed by the corresponding two rotating notches 1112, so that the rotating rod assembly 14 can rotate relative to the housing assembly 11 under the drive of the motor 12; a through hole 1113 is also provided through the main housing 111, and the transmission assembly 15 movably passes through the main housing 111 through the through hole 1113, and the through hole 1113 can limit and guide the movement of the transmission assembly 15.

[0033] See also Figure 2-Figure 4 As shown, in this embodiment, the reduction transmission assembly 13 adopts a single-stage reduction transmission structure, which includes a driving pinion 131 and a transmission gear 132; the driving pinion 131 is fixedly arranged on the rotating shaft of the motor 12, and rotates following the rotation of the rotating shaft; the transmission gear 132 is meshed and connected with the driving pinion 131, and the rotating rod assembly 14 is fixedly penetrated through the transmission gear 132, and the motor 12 drives the rotating rod assembly 14 to rotate relative to the housing assembly 11 through the driving pinion 131 and the transmission gear 132 in sequence. In other embodiments, the reduction transmission assembly 13 also adopts a multi-stage reduction transmission structure, which reduces the speed of the motor 12 and increases the output torque of the motor 12 at the same time through the multi-stage reduction transmission structure.

[0034] See also Figure 2-Figure 5 As shown, the rotating rod assembly 14 includes a rotating rod 141 and at least one protruding rod 142. The rotating rod 141 is a streamlined rod body, and its two ends are respectively movably arranged on the housing assembly 11 and fixedly connected to the reduction transmission assembly 13; at least one protruding rod 142 is transversely arranged on the rotating rod 141 and is in contact with the transmission assembly 15. When the motor 12 drives the rotating rod 141 to rotate, at least one protruding rod 142 follows the rotating rod 141 to rotate and compress the transmission assembly 15, thereby driving the transmission assembly 15 to move in the axial direction of the rotating rod 141. In this embodiment, two protruding rods 142 are symmetrically arranged on the rotating rod 141; in other embodiments, the number of protruding rods 142 can be one, three or any other number, and the number is set according to actual needs; specifically, at least one protruding rod 142 is integrally formed or assembled with the rotating rod 141.

[0035] See also Figure 2-Figure 4As shown, the transmission assembly 15 includes a transmission member 151 and a spring 152; the transmission member 151 is movably arranged on the rotating rod 141 and is capable of moving along the axial direction of the rotating rod 141; the spring 152 is movably arranged on the rotating rod 141 and is respectively in contact with the transmission member 151 at both ends, and at least one protruding rod 142 is arranged in the spiral coil of the spring 152 and is capable of moving along the spiral direction of the spiral coil; when the rotating rod 141 rotates forward, at least one protruding rod 142 rotates with the rotating rod 141 and moves along the spiral direction of the spiral coil, thereby compressing the lower part of the spring 152, and the spring 152 drives the transmission member 151 to move downward along the rotating rod 141; when the rotating rod 141 rotates reversely, at least one protruding rod 142 gradually releases the compression on the lower part of the spring 152, and under the action of the self-restoring force of the spring 152, the transmission member 151 returns to its initial position.

[0036] See also Figure 6 and Figure 7 As shown, at least two through holes 1511 are penetrated on the transmission member 151, and the transmission member 151 is movably penetrated on the rotating rod 141 through the two through holes 1511, and the spring 152 is arranged between the two through holes 1511; a connecting hole 1512 is arranged at one end of the transmission member 151 away from the reduction transmission assembly 13, and it is connected to the locking beam mechanism 30 through the connecting hole 1512.

[0037] See also Figure 7 As shown, a cabinet lock of the utility model comprises a motor drive mechanism 10, a lock shell 20, a lock beam mechanism 30 and a lock hook mechanism 40 of any one of the above items; the motor drive mechanism 10, the lock beam mechanism 30 and the lock hook mechanism 40 are respectively arranged in the lock shell 20; the motor drive mechanism 10 is transmission-connected with the lock beam mechanism 30, which can drive the lock beam mechanism 30 to rotate; the lock beam mechanism 30 and the lock hook mechanism 40 are detachably engaged, and when the motor drive mechanism 10 drives the lock beam mechanism 30 to rotate, the lock beam mechanism 30 and the lock hook mechanism 40 are disengaged, thereby realizing the unlocking operation.

[0038] When the lock is unlocked, the motor 12 rotates forward, and the rotating rod 141 gradually releases the compression on the lower part of the spring 152. Under the action of the restoring force of the spring 152 and the locking beam mechanism 30, the locking beam mechanism 30 and the transmission member 151 are returned to their original positions, thereby completing the entire unlocking operation.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A motor drive mechanism, characterized in that: include: Shell assembly; A motor, which is arranged in the housing assembly and can rotate forward and reverse; A reduction transmission assembly, which is transmission-connected to the motor; A rotating rod assembly, which is rotatably disposed in the housing assembly and is transmission-connected to the motor through the reduction transmission assembly; A transmission assembly, which is movably arranged on the rotating rod assembly; Wherein, the transmission assembly includes a transmission member and a spring which are movably arranged on the rotating rod assembly, and both ends of the spring are respectively in contact and connected with the transmission member; when the rotating rod assembly rotates, the rotating rod assembly compresses the spring to drive the transmission member to move in the axial direction of the rotating rod assembly.

2. A motor drive mechanism according to claim 1, characterized in that: The rotating rod assembly includes a rotating rod, both ends of which are movably arranged on the housing assembly and fixedly connected to the reduction transmission assembly; at least one protruding rod is transversely arranged on the rotating rod, which is arranged on the spiral coil of the spring and can move relatively along the spiral direction of the spiral coil.

3. A motor drive mechanism according to claim 2, characterized in that: The rotating rod and at least one of the convex rods are integrally formed or assembled.

4. A motor drive mechanism according to claim 2, characterized in that: The housing assembly comprises a main housing, in which a receiving cavity is arranged, and the motor is arranged in the receiving cavity; and a cover plate fixedly arranged on the main housing.

5. A motor drive mechanism according to claim 4, characterized in that: Rotation notches are respectively arranged at corresponding positions at both ends of the main shell and the cover plate, and both ends of the rotation rod are movably arranged in rotation holes formed by two corresponding rotation notches.

6. The motor drive mechanism according to claim 1, characterized in that: The reduction transmission assembly adopts a single-stage reduction transmission structure or a multi-stage reduction transmission structure.

7. The motor drive mechanism according to claim 5, characterized in that: When the reduction transmission assembly is a single-stage reduction transmission structure, the reduction transmission assembly includes a driving pinion and a transmission gear connected in meshing transmission; the driving pinion is fixedly arranged on the rotating shaft of the motor; and the rotating rod assembly is fixedly arranged on the transmission gear.

8. The motor drive mechanism according to claim 1, characterized in that: A connecting hole is arranged at one end of the transmission member away from the reduction transmission assembly.

9. A cabinet lock, characterized in that: It comprises the motor drive mechanism as described in any one of claims 1 to 8.

10. A cabinet lock according to claim 9, characterized in that: It also includes a lock shell and a lock beam mechanism and a lock hook mechanism movably arranged in the lock shell; the motor drive mechanism is transmission-connected with the lock beam mechanism; the lock beam mechanism and the lock hook mechanism are detachably engaged, and when the motor drive mechanism drives the lock beam mechanism to rotate, the lock beam mechanism and the lock hook mechanism are disengaged.

Images