阅读说明：本技术 一种可自保险的解锁机构 (Self-insurance unlocking mechanism ) 是由 马进 郭彦彪 王小龙 吴頔 卢鹏俊 于 2021-09-01 设计创作，主要内容包括：本发明一种可自保险的解锁机构涉及一种纯机械式、高可靠性的解锁机构,具体涉及一种可自保险的解锁机构,包括与第一轮系啮合的驱动轮和与第二轮系啮合的解锁轮及壳体,所述驱动轮和解锁轮均通过转轴转动设置在壳体上,所述驱动轮通过解锁爪与所述解锁轮相连；所述解锁爪包括解锁转轴、解锁杆、锁定杆及保险杆,所述解锁杆、锁定杆及保险杆均与解锁转轴固定相连；本发明结构简单,使用方便,具有较强的耐冲击性和可靠性,利用外力带动驱动轮转动,利用驱动轮上的解锁挡销推动解锁杆转动,保险杆和锁定杆随解锁杆转动,锁定杆与解锁轮脱离,保险杆从保险槽内滑出,与保险轮周面相接触,且限制锁定杆复位,实现第一轮系和第二轮系脱离解锁。(The invention discloses a self-insurance unlocking mechanism, which relates to a purely mechanical and high-reliability unlocking mechanism, in particular to a self-insurance unlocking mechanism, which comprises a driving wheel meshed with a first gear train, an unlocking wheel meshed with a second gear train and a shell, wherein the driving wheel and the unlocking wheel are both rotationally arranged on the shell through a rotating shaft, and the driving wheel is connected with the unlocking wheel through an unlocking claw; the unlocking claw comprises an unlocking rotating shaft, an unlocking rod, a locking rod and a safety rod, and the unlocking rod, the locking rod and the safety rod are fixedly connected with the unlocking rotating shaft; the invention has simple structure, convenient use and stronger impact resistance and reliability, the driving wheel is driven to rotate by external force, the unlocking pin on the driving wheel is used for pushing the unlocking rod to rotate, the safety lever and the locking rod rotate along with the unlocking rod, the locking rod is separated from the unlocking wheel, the safety lever slides out of the safety groove and contacts with the peripheral surface of the safety wheel, and the locking rod is limited to reset, thus realizing the separation and unlocking of the first wheel train and the second wheel train.)

1. A self-insurance unlocking mechanism comprises a driving wheel (1) meshed with a first gear train, an unlocking wheel (6) meshed with a second gear train and a shell, wherein the driving wheel (1) and the unlocking wheel (6) are both rotationally arranged on the shell through a rotating shaft, and the self-insurance unlocking mechanism is characterized in that the driving wheel (1) is connected with the unlocking wheel (6) through an unlocking claw (2);

the unlocking claw (2) comprises an unlocking rotating shaft, an unlocking rod (3), a locking rod (4) and a safety rod (5), the unlocking rod (3), the locking rod (4) and the safety rod (5) are fixedly connected with the unlocking rotating shaft, and the unlocking rotating shaft is rotatably connected with the shell;

an unlocking stop pin is arranged on the driving wheel (1);

the shell is also rotatably connected with a safety wheel (7), and the circumferential surface of the safety wheel (7) is provided with a safety groove;

the unlocking rod (3) extends towards the driving wheel (1) and is connected with the unlocking stop pin in a matching way, the locking rod (4) extends towards the unlocking wheel (6) and is meshed with the unlocking wheel (6), and one end of the safety rod (5) far away from the unlocking rotating shaft is arranged in the safety groove in a matching way;

when the driving wheel (1) rotates, the unlocking stop pin pushes the unlocking rod (3) to rotate, the safety rod (5) and the locking rod (4) rotate along with the unlocking rod (3), the locking rod (4) is separated from the unlocking wheel (6), the safety rod (5) slides out of the safety groove, contacts with the circumferential surface of the safety wheel (7), and limits the locking rod (4) to reset.

2. The self-safenable unlocking mechanism according to claim 1, characterized in that the safety wheel (7) is an eccentric wheel, on which a resetting device is arranged;

when the safety rod (5) slides out of the safety groove, the safety wheel (7) rotates to reset under the action of the resetting device, and the distance between the contact points of the safety rod (5) and the periphery of the safety wheel (7) and the rotation center of the safety wheel (7) is increased.

3. A self-securable release mechanism according to claim 2, wherein the safety lever (5) comprises a long safety lever and a short safety lever, one end of the short safety lever being fixedly connected to one end of the long safety lever and the other end of the long safety lever being fixedly connected to the release pivot.

4. A self-securable release mechanism as claimed in claim 3 wherein the long and short safety bars are arranged perpendicular to each other.

5. A self-securable release mechanism according to claim 3, wherein the release lever (3) comprises a long release lever and a short release lever, one end of the short release lever being fixedly connected to one end of the long release lever and the other end of the long safety lever being fixedly connected to the release rotary shaft.

6. The self-securable release mechanism of claim 5, wherein the long release lever is disposed perpendicular to the short release lever.

7. A self-securable release mechanism according to claim 3 or 5, wherein the release pawl (2) is also provided with reset means.

8. The self-securable release mechanism according to claim 7, wherein the return means is a return torsion spring;

the reset torsion spring arranged on the safety wheel (7) is sleeved on a rotating shaft which is rotationally connected with the safety wheel (7) and the shell, one end of the reset torsion spring is fixedly connected with the safety wheel (7), and the other end of the reset torsion spring is fixedly connected with the shell;

the reset torsion spring arranged on the unlocking claw (2) is sleeved on the unlocking rotating shaft, one end of the reset torsion spring is fixedly connected with the unlocking claw (2), and the other end of the reset torsion spring is fixedly connected with the shell.

9. The self-safety unlocking mechanism as claimed in claim 8, wherein the unlocking lever (3), the locking lever (4) and the safety lever (5) are uniformly distributed along the circumference of the unlocking rotation shaft.

10. The self-safetyable unlocking mechanism according to claim 9, wherein the safety wheel (7) is further provided with a manual reset device, the manual reset device comprises a manual reset shaft, the manual reset shaft is fixedly connected with a rotating shaft connecting the safety wheel (7) and the housing, and the safety wheel (7) and the manual reset shaft are respectively positioned at two sides of the housing;

the unlocking wheel (6) is a ratchet wheel.

Technical Field

The invention relates to a purely mechanical unlocking mechanism with high reliability, which realizes the functions of collision unlocking, in-place locking and safety locking, in particular to an unlocking mechanism with self-safety.

Background

The locking mechanism ensures that one group of motion wheel system reaches a designated position in the motion process, provides a small driving force, automatically releases the locking of the other group of wheel system through the unlocking mechanism, realizes the motion of the other group of wheel system, and simultaneously can not be self-locked by mistake in the motion process of the wheel system. The conventional unlocking mechanism comprises an electromagnetic unlocking device and a manual mechanical unlocking device, and is mainly limited by factors such as single function, low environmental adaptability, large size and the like, and the application range is limited.

Disclosure of Invention

In order to meet the requirements on functions, environmental adaptability and reliability of the unlocking mechanism and avoid the defects of the prior product technology, the invention aims to provide a purely mechanical unlocking mechanism which can realize unlocking under the action of small driving force collision force and has in-place locking function and self-insurance.

The invention relates to a self-insurance unlocking mechanism, which comprises a driving wheel meshed with a first gear train, an unlocking wheel meshed with a second gear train and a shell, wherein the driving wheel and the unlocking wheel are both rotationally arranged on the shell through a rotating shaft, and the driving wheel is connected with the unlocking wheel through an unlocking claw;

the unlocking claw comprises an unlocking rotating shaft, an unlocking rod, a locking rod and a safety rod, wherein the unlocking rod, the locking rod and the safety rod are fixedly connected with the unlocking rotating shaft, and the unlocking rotating shaft is rotationally connected with the shell;

an unlocking stop pin is arranged on the driving wheel;

the shell is also rotatably connected with a safety wheel, and the peripheral surface of the safety wheel is provided with a safety groove;

the unlocking rod extends towards the driving wheel and is matched and connected with the unlocking stop pin, the locking rod extends towards the unlocking wheel and is meshed with the unlocking wheel, and one end of the safety rod, which is far away from the unlocking rotating shaft, is matched and arranged in the safety groove;

when the driving wheel rotates, the unlocking stop pin pushes the unlocking rod to rotate, the safety rod and the locking rod rotate along with the unlocking rod, the locking rod is separated from the unlocking wheel, the safety rod slides out of the safety groove, contacts with the peripheral surface of the safety wheel and limits the locking rod to reset.

Preferably, the safety wheel is an eccentric wheel, and a reset device is arranged on the eccentric wheel;

when the safety rod slides out of the safety groove, the safety wheel rotates to reset under the action of the resetting device, and the distance between the safety rod and the peripheral contact point of the safety wheel and the rotation center of the safety wheel is increased.

Preferably, the bumper bar comprises a long bumper bar and a short bumper bar, one end of the short bumper bar is fixedly connected with one end of the long bumper bar, and the other end of the long bumper bar is fixedly connected with the unlocking rotating shaft.

Preferably, the long safety rod and the short safety rod are arranged perpendicular to each other.

Preferably, the unlocking rod comprises an unlocking long rod and an unlocking short rod, one end of the unlocking short rod is fixedly connected with one end of the unlocking long rod, and the other end of the safety long rod is fixedly connected with the unlocking rotating shaft.

Preferably, the unlocking long rod is perpendicular to the unlocking short rod.

Preferably, the unlocking claw is also provided with a resetting device.

Preferably, the reset device is a reset torsion spring;

the reset torsion spring arranged on the safety wheel is sleeved on a rotating shaft which is rotationally connected with the safety wheel and the shell, one end of the reset torsion spring is fixedly connected with the safety wheel, and the other end of the reset torsion spring is fixedly connected with the shell;

the reset torsion spring arranged on the unlocking claw is sleeved on the unlocking rotating shaft, one end of the reset torsion spring is fixedly connected with the unlocking claw, and the other end of the reset torsion spring is fixedly connected with the shell.

Preferably, the unlocking rod, the locking rod and the safety rod are uniformly distributed along the circumferential direction of the unlocking rotating shaft.

Preferably, the safety wheel is further provided with a manual reset device, the manual reset device comprises a manual reset shaft, the manual reset shaft is fixedly connected with a rotating shaft for connecting the safety wheel and the shell, and the safety wheel and the manual reset shaft are respectively positioned on two sides of the shell;

the unlocking wheel is a ratchet wheel.

The invention has simple structure, convenient use and stronger impact resistance and reliability, the driving wheel is driven to rotate by external force, the unlocking pin on the driving wheel is used for pushing the unlocking rod to rotate, the safety lever and the locking rod rotate along with the unlocking rod, the locking rod is separated from the unlocking wheel, the safety lever slides out of the safety groove and contacts with the peripheral surface of the safety wheel, and the locking rod is limited to reset, thus realizing the separation and unlocking of the first wheel train and the second wheel train.

The safety wheel is an eccentric wheel, when the safety rod slides out of the safety groove, the safety wheel rotates and resets under the action of the resetting device, and the distance between the safety rod and the peripheral contact point of the safety wheel and the rotation center of the safety wheel is increased, so that the safety rod cannot automatically reset into the safety groove, and the condition of mistakenly locking is avoided.

The invention is a pure mechanical structure, realizes unlocking under the action of small driving force collision force and realizes the security function of in-place locking by utilizing the safety wheel.

The invention is a pure mechanical mechanism, takes a torsion spring as a driving force, is not influenced by the interference of electromagnetism and the like at all, adopts the anti-corrosion and wear-resistant materials, has long service life and high reliability,

the parts of the invention have good mechanical processing manufacturability, easy manufacture and low cost, and the processing period is controllable, and in addition, the structural design of the locking rod part is provided with static balance design, so that the mechanism can be used completely and reliably under vibration and impact environments, and misoperation can not occur.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a collision unlocking instant view.

Fig. 3 is a diagram of the fully unlocked state.

Reference numerals: 1-driving wheel, 2-unlocking claw, 3-unlocking rod, 4-locking rod, 5-safety rod, 6-unlocking wheel and 7-safety wheel.

Detailed Description

The invention relates to a self-insurance unlocking mechanism, which comprises a driving wheel 1 meshed with a first gear train, an unlocking wheel 6 meshed with a second gear train and a shell, wherein the driving wheel 1 and the unlocking wheel 6 are both rotationally arranged on the shell through a rotating shaft, and the self-insurance unlocking mechanism is characterized in that the driving wheel 1 is connected with the unlocking wheel 6 through an unlocking claw 2;

the unlocking claw 2 comprises an unlocking rotating shaft, an unlocking rod 3, a locking rod 4 and a safety rod 5, wherein the unlocking rod 3, the locking rod 4 and the safety rod 5 are fixedly connected with the unlocking rotating shaft, and the unlocking rotating shaft is rotationally connected with the shell;

an unlocking stop pin is arranged on the driving wheel 1;

the shell is also rotatably connected with a safety wheel 7, and the circumferential surface of the safety wheel 7 is provided with a safety groove;

the unlocking rod 3 extends towards the driving wheel 1 and is connected with the unlocking stop pin in a matching way, the locking rod 4 extends towards the unlocking wheel 6 and is meshed with the unlocking wheel 6, and one end of the safety lever 5, which is far away from the unlocking rotating shaft, is arranged in the safety groove in a matching way;

when the driving wheel 1 rotates, the unlocking stop pin pushes the unlocking rod 3 to rotate, the safety rod 5 and the locking rod 4 rotate along with the unlocking rod 3, the locking rod 4 is separated from the unlocking wheel 6, the safety rod 5 slides out of the safety groove, contacts with the circumferential surface of the safety wheel 7, and limits the locking rod 4 to reset.

The safety wheel 7 is an eccentric wheel, and a reset device is arranged on the eccentric wheel;

when the safety rod 5 slides out of the safety groove, the safety wheel 7 rotates and resets under the action of the resetting device, and the distance between the contact points of the safety rod 5 and the periphery of the safety wheel 7, namely the rotation center of the safety wheel 7, is increased.

The safety rod 5 comprises a long safety rod and a short safety rod, one end of the short safety rod is fixedly connected with one end of the long safety rod, and the other end of the long safety rod is fixedly connected with the unlocking rotating shaft.

The long bumper bar and the short bumper bar are arranged vertically.

The unlocking rod 3 comprises an unlocking long rod and an unlocking short rod, one end of the unlocking short rod is fixedly connected with one end of the unlocking long rod, and the other end of the safety long rod is fixedly connected with the unlocking rotating shaft.

The unlocking long rod and the unlocking short rod are arranged vertically.

The unlocking claw 2 is also provided with a resetting device.

The reset device is a reset torsion spring;

the reset torsion spring arranged on the safety wheel 7 is sleeved on a rotating shaft which is rotationally connected with the safety wheel 7 and the shell, one end of the reset torsion spring is fixedly connected with the safety wheel 7, and the other end of the reset torsion spring is fixedly connected with the shell;

the reset torsion spring arranged on the unlocking claw 2 is sleeved on the unlocking rotating shaft, one end of the reset torsion spring is fixedly connected with the unlocking claw 2, and the other end of the reset torsion spring is fixedly connected with the shell.

The unlocking rod 3, the locking rod 4 and the safety rod 5 are uniformly distributed along the circumferential direction of the unlocking rotating shaft.

The safety wheel 7 is also provided with a manual reset device, the manual reset device comprises a manual reset shaft, the manual reset shaft is fixedly connected with a rotating shaft for connecting the safety wheel 7 and the shell, and the safety wheel 7 and the manual reset shaft are respectively positioned at two sides of the shell;

the unlocking wheel 6 is a ratchet wheel. The driving wheel 1 is also provided with a reset torsion spring, the reset torsion spring is sleeved on a rotating shaft connecting the driving wheel 1 and the shell, one end of the reset torsion spring is fixedly connected with the driving wheel 1, and the other end of the reset torsion spring is fixedly connected with the shell.

Referring to fig. 1, the action process of the invention is described, the driving wheel 1 rotates counterclockwise under the action of the reset torsion spring, the unlocking pin and the unlocking rod 3 instantly generate a certain collision force when contacting, so that the unlocking claw 2 rotates clockwise, the safety lever 5 slides out of the safety slot, as shown in fig. 2, the safety wheel 7 continues to rotate clockwise under the action of the connected reset torsion spring, so that the safety short lever is lapped on the outer circular surface of the safety wheel 7, and thus the non-return locking rod 4 is ensured not to rotate reversely under the environmental condition in the rear-stage gear train operation, and the condition of mistaken locking occurs.

The invention has simple structure, convenient use and stronger impact resistance and reliability, the driving wheel 1 is driven to rotate by external force, the unlocking pin on the driving wheel 1 is utilized to push the unlocking rod 3 to rotate, the safety lever 5 and the locking lever 4 rotate along with the unlocking rod 3, the locking lever 4 is separated from the unlocking wheel 6, the safety lever 5 slides out of the safety slot and contacts with the circumferential surface of the safety wheel 7, and the locking lever 4 is limited to reset, thus realizing the unlocking of the first wheel train and the second wheel train.

The safety wheel 7 is an eccentric wheel, when the safety rod 5 slides out of the safety groove, the safety wheel 7 rotates to reset under the action of the resetting device, and the distance between the contact points of the safety rod 5 and the peripheral surface of the safety wheel 7, namely the rotation center of the safety wheel 7, is increased, so that the safety rod 5 cannot be automatically reset into the safety groove, and the condition of mistaken locking is avoided.

The invention is of a pure mechanical structure, realizes unlocking under the action of small driving force collision force and realizes the security function of in-place locking by utilizing the safety wheel 7.