CN116905904A - A clutch mechanism for a lock motor reducer - Google Patents

Abstract

The invention discloses a clutch mechanism of a lock motor reducer and relates to the technical field of locks. The invention includes a front-stage gear, a final-stage gear, a planet carrier and a planet gear. The planet carrier has a cylindrical structure, an inner hole body is provided at the inner axis of the planet carrier, and rear passages connected to the inner hole body are provided at both ends of the planet carrier. and the front port. The inner wall of the front port is equipped with a rubber ring. There is a gap connected to the inner hole body on the side of the planet carrier. The rear axle body is fixed at the rear axis of the front gear through an outer step. The outer step is fixed with a rubber ring. The ring interference is set in the front opening, and the outer step is movably connected to the rubber ring. By arranging a floating planetary gear reducer at the final gear of the reduction mechanism, the present invention disengages the final gear and the planetary gear without interfering with each other during manual operation, is not affected by the speed change of the front reduction gear set, and can rotate easily The lock cylinder achieves the purpose of manual unlocking and locking, improving the safety and convenience of the lock cylinder.

Description

A clutch mechanism for a lock motor reducer

Technical field

The invention belongs to the technical field of locks, and in particular relates to a clutch mechanism of a lock motor reducer.

Background technique

The current electronic door lock is equipped with an outer panel on the outside of the door (the outer panel can be a combination of a fingerprint reader and a wireless keyboard or a combination of a card swipe and a wireless keyboard) to input the unlocking signal, and the electronic control element of the lock cylinder drives the reducer to control the scissors of the lock. The tongue and the main deadbolt are opened to open the door. A button is set on the inside of the door as a signal input for opening and locking the door. At the same time, a turn handle is connected to the lock core instead of a key to manually switch the lock. The lock core control end can be connected to a mobile phone APP to control the unlocking and locking. Lock, realize intelligence and improve convenience.

However, after the electronic lock core is decelerated by multi-stage gears and the torque is increased, due to the large torque, it is difficult (unable) to rotate the reduction mechanism from the output shaft (final gear of the reducer) for unlocking or locking, so it cannot be used for emergency opening ( That is, when the battery is out of power or the electronic control fails, it is necessary to manually turn the lock cylinder to unlock or lock the lock).

Therefore, it is a problem that workers in this field need to solve to design a clutch mechanism that can quickly and easily unlock or lock the reducer when the battery is out of power or the electronic control fails.

Contents of the invention

The object of the present invention is to provide a clutch mechanism for a lock motor reducer. By arranging a floating planetary gear reducer at the final gear of the reduction mechanism, during manual operation, the final gear and the planetary gear are disengaged without interfering with each other. Affected by the speed change of the front reduction gear set, the lock cylinder can be easily rotated to achieve manual unlocking and locking, improving the safety and convenience of the lock cylinder.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

The invention is a clutch mechanism of a lock motor reducer, which includes a front gear, a final gear, a planet carrier and a planet gear;

The planet carrier has a cylindrical structure, and an inner hole body is provided at the inner axis of the planet carrier. The two ends of the planet carrier are respectively provided with a rear opening and a front opening connected to the inner hole body. The front opening The inner wall is provided with a rubber ring, and the planet carrier peripheral side is provided with a notch connected to the inner hole body;

The rear axle body is fixed at the rear axis of the front stage gear through an outer step. The outer step is arranged in the front opening through an apron interference. The outer step is movably connected to the apron, and the rear axle body is away from the apron. One end of the front gear passes through the rear port and is rotationally connected with the rear port;

An internal tooth column is provided on the peripheral side of the rear axle body, a gap between the internal tooth column is provided in the inner hole body, and the planetary gear is rotated in the gap and meshes with the internal tooth column;

The final gear is arranged on one side of the planet gear and the core shaft of the final gear is parallel to the rear axle body. The distance between the final gear and the internal tooth column is smaller than the outer diameter of the planet gear.

Further, the motor reducer includes a casing, a motor is fixed on one side of the casing, the front-stage gear and the final gear are arranged in the casing, and the motor output end is located in the casing and passes through the reduction gear. The group is connected with the front gear transmission.

Further, the end of the front-stage gear away from the rear shaft body and the end of the core shaft of the final-stage gear are both provided with mounting ends, and the mounting ends are rotationally connected to the inner wall of the casing.

Furthermore, an output shaft is provided at an end of the core shaft of the final gear away from the installation end, and the output shaft penetrates the side wall of the casing and is located outside the casing.

Furthermore, the cross section of the notch is trumpet-shaped, and both sides of the notch parallel to the planetary gear are arcuate surfaces.

The invention has the following beneficial effects:

The present invention sets a floating planetary gear reducer at the final gear of the reduction mechanism. During electronic control operation, the front gear drives the planet carrier to rotate to the meshing of the planet gear and the final gear. The front gear continues to pass through the planet gear and the final gear. The gear engagement drives the final gear to rotate, realizing electronically controlled unlocking and locking. During manual operation, the final gear and the planetary gear are disengaged and do not interfere with each other. They are not affected by the speed change of the front reduction gear set and can easily rotate the lock cylinder. Achieve the purpose of manual unlocking and locking, and improve the safety and convenience of the lock cylinder.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a clutch mechanism of a lock motor reducer of the present invention;

Figure 2 is a structural cross-sectional view of the front gear and planet carrier;

Figure 3 is a structural cross-sectional view of the position of the planetary gear and the internal tooth column of the present invention;

Figure 4 is a schematic structural diagram of the present invention after installation;

Figure 5 is a schematic diagram of the structure in the unengaged state;

Figure 6 is a schematic structural diagram of the gear mesh;

Figure 7 is a schematic structural diagram in the manual state;

In the drawings, the parts represented by each number are listed as follows:

1-front gear, 2-final gear, 3-planet carrier, 4-planet gear, 5-casing, 101-outer step, 102-rear shaft body, 103-internal gear column, 104-installation end, 201-output shaft, 301-inner hole body, 302-rear port, 303-front port, 304-notch, 501-motor, 502-reduction gear set.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-3. The present invention is a clutch mechanism of a lock motor reducer, which includes a front gear 1, a final gear 2, a planet carrier 3 and a planet gear 4;

The lock core used in the present invention retains the mechanical lock, and the door can be opened with a normal key outside, retaining the high security of the mechanical lock and the convenience of the electronic lock. The outer panel on the outside of the door can be set at any position outside the door;

The planet carrier 3 has a cylindrical structure. An inner hole body 301 is provided at the inner axis of the planet carrier 3. The two ends of the planet carrier 3 are respectively provided with a rear port 302 and a front port 303 connected to the inner hole body 301. The front port 303 The inner wall is provided with a rubber ring, and there are notches 304 connected to the inner hole body 301 on the three sides of the planet carrier;

The rear axle body 102 is fixed at the rear axis of the front stage gear 1 through an outer step 101. The outer step 101 is set in the front opening 303 through an apron interference. The outer step 101 is movably connected to the apron, and the rear axle body 102 is away from the apron. One end of the front gear 1 passes through the rear port 302 and is rotationally connected with the rear port 302;

An inner tooth column 103 is provided on the peripheral side of the rear axle body 102. The inner tooth column 103 is provided with a gap in the inner hole body 301. The planetary gear 4 is rotated in the gap 304 and meshes with the inner tooth column 103;

The final gear 2 is arranged on one side of the planet gear 4 and the core axis of the final gear 2 is parallel to the rear shaft body 102 . The distance between the final gear 2 and the internal tooth column 103 is smaller than the outer diameter of the planet gear 4 .

As shown in Figure 4, the motor reducer includes a casing 5. A motor 501 is fixed on one side of the casing 5. The front gear 1 and the final gear 2 are arranged in the casing 5. The output end of the motor 501 is located in the casing 5. And it is transmission connected with the front gear 1 through the reduction gear set 502.

As shown in Figures 1-2 and 4, the end of the front-stage gear 1 away from the rear shaft body 102 and the end of the mandrel of the final-stage gear 2 are equipped with mounting heads 104, and the mounting heads 104 rotate with the inner wall of the casing 5 Connection, the rear shaft body 102 is located at the outer end of the planet carrier 3 and is rotationally connected to the inner wall of the casing 5 .

As shown in FIGS. 1 and 4 , the end of the core shaft of the final gear 2 away from the installation end 104 is provided with an output shaft 201 . The output shaft 201 penetrates the side wall of the casing 5 and is located outside the casing 5 .

As shown in Figures 1 and 3, the cross-section of the notch 304 is trumpet-shaped, and both sides of the notch 304 parallel to the planetary gear 4 are arc surfaces, providing space for the planetary gear 4 and the final gear 2 to make way for them. .

The working principle of the present invention is:

The unengaged state is shown in Figure 5, and the final gear 2 can rotate freely.

The gearing state is shown in Figure 6. The front gear 1 drives the planet carrier 3 and the planet gear 4 to rotate synchronously (the upper outer step 101 of the front gear 1 and the front opening 303 are linked through a rubber ring, and the elastic force provided by the rubber ring (linked with friction), the planetary gear 4 meshes with the final gear 2. Since the gap between the inner row gear column 103 and the final gear 2 is not enough for the placement of the planetary gear 4, the planetary carrier 3 is in a fixed position. The front gear 1 and the planet carrier 3 rotate relative to each other (the interference force between the outer step 101 and the front opening 303 is less than the driving force of the front gear 1), and the front gear 1 drives the final gear 2 to rotate.

The manual state is shown in Figure 7, and the final gear 2 can rotate freely.

In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to the specific implementations described. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The utility model provides a clutch mechanism of tool to lock motor reduction gear which characterized in that: comprises a front stage gear (1), a final stage gear (2), a planet carrier (3) and a planet gear (4);

the planetary carrier (3) is of a cylindrical structure, an inner hole body (301) is arranged at the inner core position of the planetary carrier (3), a rear through hole (302) and a front through hole (303) which are connected with the inner hole body (301) are respectively formed in two ends of the planetary carrier (3), a rubber ring is arranged on the inner wall of the front through hole (303), and a notch (304) connected with the inner hole body (301) is formed in the peripheral side face of the planetary carrier (3);

the rear axle center of the front gear (1) is fixedly provided with a rear axle body (102) through an outer step (101), the outer step (101) is arranged in a front through hole (303) in an interference manner through a rubber ring, the outer step (101) is movably connected with the rubber ring, and one end, far away from the front gear (1), of the rear axle body (102) penetrates through the rear through hole (302) and is rotationally connected with the rear through hole (302);

an inner tooth column (103) is arranged on the peripheral side surface of the rear shaft body (102), the inner tooth column (103) is arranged in the inner hole body (301) in a clearance mode, and the planetary gear (4) is rotatably arranged in the notch (304) and meshed with the inner tooth column (103);

the final gear (2) is arranged on one side of the planetary gear (4), the mandrel of the final gear (2) and the rear shaft body (102) are distributed in parallel, and the distance between the final gear (2) and the inner tooth column (103) is smaller than the outer diameter of the planetary gear (4).

2. The clutch mechanism of a lockset motor reducer according to claim 1, wherein the motor reducer comprises a casing (5), a motor (501) is fixed on one side of the casing (5), the front stage gear (1) and the final stage gear (2) are arranged in the casing (5), and an output end of the motor (501) is positioned in the casing (5) and is in transmission connection with the front stage gear (1) through a reduction gear set (502).

3. The clutch mechanism of the lock motor reducer according to claim 2, wherein the end of the front stage gear (1) far away from the rear shaft body (102) and the end of the core shaft of the final stage gear (2) are respectively provided with a mounting end (104), and the mounting ends (104) are rotatably connected with the inner wall of the casing (5).

4. A clutch mechanism of a lock motor reducer according to claim 3, characterized in that an output shaft (201) is arranged at one end of the spindle of the final gear (2) far away from the mounting end (104), and the output shaft (201) penetrates through the side wall of the casing (5) and is located outside the casing (5).

5. The clutch mechanism of a lock motor reducer according to claim 1, wherein the cross section of the notch (304) is horn-shaped, and both side surfaces of the notch (304) parallel to the planetary gear (4) are cambered surfaces.