CN109537997B

CN109537997B - Limiting device

Info

Publication number: CN109537997B
Application number: CN201811636282.9A
Authority: CN
Inventors: 龚章平; 江长青
Original assignee: Dongwu Shian Iot Technology Jiangsu Co ltd
Current assignee: Dongwu Shian Iot Technology Jiangsu Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2024-03-29
Anticipated expiration: 2038-12-29
Also published as: CN109537997A

Abstract

The invention discloses a rotary device which comprises a fixed rotary point capable of freely rotating, wherein the fixed rotary point rotates around a B axis; and a first contact point which can be contacted with one side of the first notch simultaneously. The invention has the beneficial effects that the direction of the driving mechanism driving the driven mechanism to rotate can be changed through the adjustment of the position of the limiting device.

Description

Limiting device

Technical Field

The invention relates to a limiting device. The limiting device is mainly applied to household locks.

Background

When the intelligent household lock is used for lifting the handle for back locking, the reversing clutch device is in a closed state, the output shaft rotates the lock tongue to extend, and the door is locked; when the handle is pressed down to open the door, the reversing clutch device is in a separated state, and the clutch device cannot drive the output shaft to rotate, so that the door cannot be opened.

When the left door is changed into the right door or the right door is changed into the left door, the original lifting handle acts to reverse the steering of the reversing clutch device, and the reversing clutch device is in a state of being separated and can not rotate the output shaft, so that the door is reversely locked; the original handle is pressed down to enable the reversing clutch device to turn reversely, and the reversing clutch device is in a closed state, so that the door can be opened by mistake.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a limiting device, wherein after the handle is changed, the reversing clutch device is still in a closed state and is normally locked when the handle is lifted; when the handle is pressed down, the reversing clutch device is in a separated state and can not open the door.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a spacing device comprising a fixed rotation point capable of freely rotating, wherein the fixed rotation point rotates around a B axis; and a first contact point which can be contacted with one side of the first notch simultaneously.

Preferably, the first contact point may be in contact with both the first notch and the second notch.

The driving mechanism can drive the driven mechanism to move along a certain direction when the first contact point contacts one side of the first notch; when the second contact point is contacted with the other side of the first notch, the driving mechanism can drive the driven mechanism to move along the other direction.

Preferably, the first contact point and the second contact point may be in contact with the first notch and the second notch at the same time.

Preferably, the limiting device is in a section of arc shape which is not easy to deform.

The invention has the beneficial effects that the direction of the driving mechanism driving the driven mechanism to rotate can be changed through the adjustment of the position of the limiting device.

Drawings

Fig. 1 is a schematic view of an application structure of a clutch device.

Fig. 2 is an exploded view of the clutch device.

Fig. 3 is a schematic view of the driven mechanism.

Fig. 4 is a schematic diagram of the structure of the driving mechanism.

Fig. 5 is a schematic diagram of a reversing key structure.

Fig. 6 is a schematic diagram of a counterclockwise rotation state of the reversing key.

Fig. 7 is a schematic diagram of a clockwise rotation state of the reversing key.

Fig. 8 is a schematic diagram of the clutch device with cover plate.

Fig. 9 is a schematic view of a clutch shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The handle reversing mechanism shown in fig. 1 comprises a handle 1, one end of the handle 1 is fixedly connected with a handle shaft 11, the handle shaft 11 is fixedly connected with a deflector rod 2, one end of a connecting rod 3 is movably connected to the deflector rod 2, the other end of the connecting rod 3 is connected with a driving mechanism, and when the handle 1 rotates upwards, the deflector rod 2 moves downwards and drives the connecting rod 3 to move downwards to drive the driving mechanism to rotate clockwise; when the handle 1 rotates downwards, the deflector rod 2 moves upwards and drives the connecting rod 3 to move upwards, so that the driving mechanism is driven to rotate anticlockwise.

As shown in fig. 2 and 3, the driving mechanism 42 is part of the clutch device 4, and the clutch device 4 includes a driven mechanism 41, a driving mechanism 42, a reversing key 43, and a cover plate 44, where the driven mechanism 41 and the driving mechanism 42 are sleeved and in clearance fit. The driven mechanism 41 is a hollow stepped cylinder, and includes a base 411, and a protruding portion 412 is disposed above the base 411. In order to transmit power to other mechanisms, the driven mechanism 41 is of a hollow structure, and the hollow section is generally square or triangular, namely, a square shaft hole or a triangular shaft hole is arranged at the center of the circle of the driven mechanism 41, and when the square shaft or the triangular shaft is inserted into the square shaft hole or the triangular shaft hole, the driven mechanism 41 can drive other parts to move. The protruding part 412 is divided into two layers from the center from inside to outside, and the inner layer 413 is a hollow cylinder and is used for further transmitting the acting force to the outside; the outer layer 414 is a hollow cylinder with a first notch 415 that is designed to contact the reversing key. The above-mentioned central axis corresponds to the a-axis in fig. 9. The outer diameter of the base 411 is generally larger than the outer diameter of the protrusion 412, so that the position of the driving mechanism 42 and the driven mechanism 41 can be maintained; in some cases, the relative positions of the driving mechanism 42 and the driven mechanism 41 may be maintained by other components, and if so, the outer diameter of the base 411 and the outer diameter of the protruding portion 412 may be freely designed, or even designed as a single structure.

The driving mechanism 42 is a hollow cylinder, and the hollow section is circular. The outer diameter of the driving mechanism 42 is equal to the outer diameter of the base 411, and the inner diameter of the driving mechanism 42 is slightly larger than the outer diameter of the protrusion outer layer 414. The protruding part 412 passes through the driving mechanism 42, the protruding part outer layer 414 is attached to the inner wall of the driving mechanism 42, at this time, the driving mechanism 42 and the protruding part 412 can rotate freely relatively, so that the driving mechanism 42 cannot drive the driven mechanism 41 to move simultaneously.

One of the important purposes of the present invention is that the force generated on the handle can be transferred to the slave mechanism 41 by the driving mechanism 42 driving the slave mechanism 41 to move simultaneously, thereby further driving the other mechanisms to move.

In order to realize that the driving mechanism 42 drives the driven mechanism 41 to move simultaneously, a second notch 421 is arranged on the driving mechanism 42, and after the driven mechanism 41 and the driving mechanism 42 are sleeved, the part outside the first notch 415 on the outer layer 414 forms an inner ring 416, and the part outside the second notch 421 on the driving mechanism 42 forms an outer ring 422. The inner ring 416 and the outer ring 422 can rotate freely relatively without the action of a limiting device, and the driving mechanism 42 cannot drive the driven mechanism 41 to move simultaneously. Therefore, a limiting device is required to be arranged on the inner ring 416 and the outer ring 422, so that the driving mechanism 42 drives the driven mechanism 41 to move simultaneously.

An important innovation of the present invention is the spacing means described below.

The limiting device adopted in the embodiment is a reversing key 43, and the reversing key 43 is a section of arc shape which is not easy to deform. The reversing key 43 is provided with an adjusting device 431 on the front side and a fixing post 432 on the back side. The second notch 421 is provided with a fixing hole 423, and the fixing post 432 is inserted into the fixing hole and can freely rotate in the fixing hole 423. Of course, the fixing column is arranged on the second notch, and the fixing hole is arranged on the reversing key, so that the same technical effect can be achieved.

When the reversing key 43 rotates clockwise, one end 434 thereof contacts both the first notch 415 and the second notch 421, i.e., contacts both the inner race 416 and the outer race 422. Since the reversing key 43 and the inner ring 416 and the outer ring 422 are made of materials which are not easy to deform, the reversing key 43 cannot rotate around the B axis continuously, and therefore, when the driving mechanism 42 rotates clockwise around the a axis, the driven mechanism 41 can be driven to move simultaneously. Conversely, when the reversing key 43 rotates counterclockwise, one end 433 thereof contacts both the first notch 415 and the second notch 421, i.e., both the inner race 416 and the outer race 422. Since the reversing key 43 and the inner ring 416 and the outer ring 422 are made of materials which are not easy to deform, the reversing key 43 cannot rotate around the axis B, and therefore, when the driving mechanism 42 rotates around the axis a anticlockwise, the driven mechanism 41 can be driven to move simultaneously.

The innovation of the reversing key in this embodiment is that the reversing key rotates around a fixed position, and during the rotation process, a certain contact point of the reversing key can be simultaneously contacted with the first notch 415 and the second notch 421, so that the clockwise or anticlockwise free movement of the driving mechanism and the driven mechanism is limited, and the driving mechanism 42 drives the driven mechanism 41 to simultaneously move in a certain direction.

In order to prevent the reversing key 43 from rotating in place and then rotating in the opposite direction, a groove 424 is arranged at the joint of the outer ring 422 and the second notch 421, a spring 425 and a steel ball 426 are arranged in the groove 424 from inside to outside, and the steel ball 426 is in contact with one end of the reversing key 43. The above mechanism design ensures that the reversing key 43 cannot be rotated in the reverse direction without interference from a large external force.

In order to prevent the reversing key 43 from rotating excessively beyond the range of the first notch 415 and the second notch 421, a limiting post 435 is provided on the back of the reversing key, correspondingly, a limiting groove 427 is provided on the second notch 421, and the limiting post 535 moves in the limiting groove 427, thereby ensuring that the reversing key 43 cannot excessively rotate. Preferably, two spacing posts 435 and two spacing slots 427 are provided.

In addition, if the limiting column is arranged at the second notch, the limiting groove is arranged at the back surface of the reversing key, and the same technical effect can be achieved.

The adjusting device 431 is used for the direction change of the reversing key 43. Because of the force of the steel ball 426, a large external force is required to achieve the direction conversion of the direction conversion key 43. In this embodiment the adjusting means are arranged with a rectilinear groove shape, which is suitable for adjustment using a rectilinear motion. Obviously, the adjusting device can also be designed in other shapes.

In order to be able to fix the components in a sealed manner, an annular cover plate 44 is arranged above the drive mechanism 42, and an adjusting hole 441 is arranged on the cover plate 44 and cooperates with the adjusting device 431.

When the handle 1 is lifted, one end of the steering key 43 simultaneously contacts the inner ring and the outer ring of the clutch device, so that the clutch device is in a closed state, and the clutch device drives the driven mechanism to rotate, thereby locking the door. When the handle 1 is changed, the steering key is rotated by a straight line, the other end of the steering key is simultaneously contacted with the inner ring and the outer ring of the clutch device, and the clutch device is still in a closed state when the handle is lifted, and the clutch device drives the driven mechanism to rotate so as to lock the door reversely.

According to the technical scheme, the handle can be lifted to realize back locking no matter what the direction of the handle is. Therefore, the household intelligent door lock is more convenient to be applied to the left and right doors, and the application range of the lockset is enlarged.

Additional embodiments will be given below for the mechanism of the reversing key. As mentioned above, the innovation of the reversing key is that the reversing key rotates around a fixed position, and during the rotation, a certain contact point of the reversing key can be simultaneously contacted with the first notch 415 and the second notch 421, so that the clockwise or anticlockwise free movement of the driving mechanism and the driven mechanism is limited, and thus the driving mechanism 42 drives the driven mechanism 41 to simultaneously move in a certain direction.

Around the above-described concept, the reversing key capable of achieving the basic technical effect should include a fixed rotation point that can be freely rotated, the fixed rotation point being rotated around the B axis shown in fig. 8; and a first contact point that can simultaneously contact the first notch 415 and the second notch 421.

When the first contact point contacts the left sides of the first notch 415 and the second notch 421 at the same time, the driving mechanism can drive the driven mechanism to move clockwise; when the clutch device needs to be reversed, that is, when the driving mechanism needs to drive the driven mechanism to move anticlockwise, the reversing key needs to be rotated around the B axis by a certain angle, so that the first contact point is simultaneously contacted with the right sides of the first notch 415 and the second notch 421.

The design of the fixed rotation point combined with the first contact point can meet the basic requirement of clutch reversing, however, the disadvantage is also obvious, the clutch device often needs a large space to rotate the first contact point from the left side of the first notch 415 and the second notch 421 to the right side of the first notch 415 and the second notch 421 in a closed space, and the design difficulty and the manufacturing cost of the clutch device are increased.

For this reason, for the limit of the contact points required on the left and right sides of the first notch 415 and the second notch 421, the preferred reversing key scheme includes a fixed rotation point, a first contact point and a second contact point which are symmetric left and right, where the driving mechanism can drive the driven mechanism to move clockwise when the first contact point contacts with the left sides of the first notch 415 and the second notch 421 at the same time; when the second contact point contacts the left sides of the first notch 415 and the second notch 421, the driving mechanism may drive the driven mechanism to move counterclockwise. The shape of the connecting portions of the fixed rotation point and the first and second contact points is not important, but it is emphasized that the reversing key should not be easily deformed, regardless of the shape and the use, or the technical effect cannot be achieved.

Claims

1. A clutch device is characterized in that,

comprises a driven mechanism, a driving mechanism and a reversing key; the driven mechanism is provided with a protruding part; the outer layer of the protruding part is provided with a first notch; the driving mechanism is sleeved with the protruding part; the reversing key is provided with a fixed column at the back, the driving mechanism is provided with a second notch, the second notch is provided with a fixed hole, and the fixed column is inserted into the fixed hole and can freely rotate in the fixed hole;

after the driven mechanism and the driving mechanism are sleeved, the part outside the first notch forms an inner ring, and the part outside the second notch on the driving mechanism forms an outer ring; a groove is formed in the joint of the outer ring and the second notch, a spring and a steel ball are arranged in the groove from inside to outside, and the steel ball is contacted with one end of the reversing key;

the front face of the reversing key is provided with an adjusting device, an annular cover plate is arranged above the driving mechanism, and an adjusting hole is formed in the cover plate and matched with the adjusting device;

the reversing key comprises a fixed rotating point which can freely rotate, and the fixed rotating point rotates around the axis B; the first contact point can be contacted with the first notch and the second notch simultaneously;

the adjusting device is used for direction conversion of the reversing key;

the surface of the adjusting device is in a shape of a straight groove;

the reversing key comprises a fixed rotating point, a first contact point and a second contact point, and when the first contact point is contacted with one side of the first notch, the driving mechanism can drive the driven mechanism to move along a certain direction; when the second contact point is contacted with the other side of the first notch, the driving mechanism can drive the driven mechanism to move along the other direction.

2. A clutch device according to claim 1, wherein,

the back of reversing key is provided with spacing post, corresponds, is provided with the spacing groove on the second breach, and spacing post is movable in the spacing groove.

3. A clutch device according to claim 2, wherein,

the limiting columns and the limiting grooves are respectively arranged in two.

4. A clutch device according to claim 1, wherein,

the reversing key is provided with a protruding structure, the cover plate is provided with a position indication mark, and when the position of the reversing key is adjusted, the protruding structure indicates the corresponding mark position.

5. A clutch device according to claim 1, wherein,

the driven mechanism is of a hollow structure.