CN213895029U - Rotary locking mechanism - Google Patents

Abstract

The utility model relates to a gyration locking mechanism. The utility model provides an utilize ratchet, pawl and locking stopper can realize the gyration locking mechanism of big moment of torsion locking in little space. The utility model discloses a base, ratchet, pawl, locking return spring, locking stopper and deblocking piece, ratchet and pawl rotate with the base to be connected, and locking stopper and deblocking piece set up on the base, and deblocking piece links to each other with the pawl, and locking return spring both ends are connected respectively on pawl and locking stopper, and the pawl bottom surface is realized locking with the contact of locking stopper top surface, and the pawl breaks away from the ratchet under deblocking piece's effect and realizes the unblock.

Description

Rotary locking mechanism

Technical Field

The utility model relates to a gyration locking mechanism especially is applicable to the gyration locking of little space, big moment of torsion belongs to mechanical engineering technical field.

Background

The rotary locking is frequently used in mechanical equipment, the traditional ratchet wheel and pawl locking mode is very mature, but the self volume of the rotary locking mechanism is increased along with the increase of the locking torque due to the limitation of material strength, and the rotary locking with large torque is difficult to realize in a small space. How to achieve locking with large torque in a small space is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

The utility model provides a not enough to above-mentioned prior art, the utility model provides a gyration locking mechanism utilizes ratchet, pawl and locking stopper can realize the locking of big moment of torsion in little space.

In order to achieve the above object, the utility model adopts the following technical scheme: gyration locking mechanism, including base, ratchet, pawl, locking return spring, locking stopper and deblocking piece, ratchet and pawl rotate with the base and are connected, and locking stopper and deblocking piece set up on the base, and deblocking piece links to each other with the pawl, and locking return spring both ends are connected respectively on pawl and locking stopper, and the pawl bottom surface is realized locking with the contact of locking stopper top surface, and the pawl breaks away from the ratchet under deblocking piece's effect and realizes the unblock.

The power source of the unlocking piece is a direct-acting element or a rotating element.

The direct-acting element is a cylinder or an electromagnet.

The rotating element is an electric winch or a hydraulic winch.

The locking return spring is a direct-acting spring or a torsion spring.

Drawings

Fig. 1 is a schematic view of an unlocking state of the linear motion unlocking element of the present invention;

fig. 2 is a schematic view of the locking state of the unlocking element adopting the linear motion of the invention;

fig. 3 is a schematic view of the unlocking state of the rotary unlocking element of the present invention;

fig. 4 is a schematic view of the locking state of the rotary unlocking element of the present invention.

Detailed Description

The utility model discloses a base 1, ratchet 2, pawl 6, locking return spring 4, locking stopper 3 and deblocking piece, ratchet 2 and pawl 6 rotate with base 1 to be connected, and locking stopper 3 and deblocking piece set up on base 1, and deblocking piece links to each other with pawl 6, and 4 both ends of locking return spring are connected respectively on pawl 6 and locking stopper 3, and locking return spring 4 can adopt the direct-acting spring, also can adopt the torsional spring. The power source of the unlocking piece can adopt a cylinder or a direct-acting element such as an electromagnet 7 and the like, and can also adopt a rotating element such as an electric winch 9 or a hydraulic winch and the like. The bottom surface of the pawl 6 is contacted with the top surface of the locking limiting block 3, and the ratchet 2 is locked through the working end of the pawl 6; the pawl 6 is disengaged from the ratchet 2 under the action of the unlocking piece to realize unlocking.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.

Example 1

As shown in fig. 1: the pawl 6 is rotationally connected with the base 1 through a pawl shaft 5, the ratchet 2 can be rotationally connected with the base 1 through a ratchet shaft, and can also be rotationally connected with the base 1 through a universal standard component such as a rotating disk supported by a rolling bearing. Two ends of a locking return spring 4 are fixed on the locking limiting block 3 and the pawl 6, one end of an electromagnet 7 is connected with the base 1, and the other end of the electromagnet is connected with the pawl 6. The return spring 4 is locked to enable the pawl 6 to be close to the ratchet wheel 2, and the electromagnet 7 enables the pawl 6 to be far away from the ratchet wheel 2. When the lock is unlocked, the electromagnet 7 is electrified to pull the pawl 6 away from the ratchet wheel 2, and the ratchet wheel 2 can rotate freely. As shown in fig. 2: when the locking device is locked, the electromagnet 7 is powered off and does not exert force, the locking return spring 4 enables the pawl 6 to lean against the ratchet wheel 2, the rotation of the ratchet wheel 2 drives the pawl 6 to rotate until the working end of the pawl 6 is matched with the ratchet wheel 2, and the bottom surface of the pawl 6 is contacted with and leans against the top surface of the locking limiting block 3 fixed on the base 1, so that the locking function is realized.

Example 2

As shown in fig. 3: an electric winch 9 arranged on the base 1 is connected with the pawl 6 through a steel wire rope 8, when the lock is unlocked, the electric winch 9 is electrified, the pawl 6 is pulled away from the ratchet 2 through the steel wire rope 8 of the electric winch 9, and the ratchet 2 can rotate freely. As shown in fig. 4: when the locking device is locked, the electric winch 9 is powered off and does not exert force, the locking return spring 4 enables the pawl 6 to lean against the ratchet wheel 2, the ratchet wheel 2 rotates to drive the pawl 6 to rotate until the working end of the pawl 6 is matched with the ratchet wheel, and the bottom surface of the pawl 6 is tightly leaned against the top surface of the locking limiting block 3, so that the locking function is realized.

Claims (5)

1. The utility model provides a gyration locking mechanism, its characterized in that includes base, ratchet, pawl, locking return spring, locking stopper and deblocking piece, ratchet and pawl rotate with the base to be connected, and locking stopper and deblocking piece set up on the base, and deblocking piece links to each other with the pawl, and locking return spring both ends are connected respectively on pawl and locking stopper, and the pawl bottom surface is contacted with locking stopper top surface and is realized locking, and the pawl breaks away from the ratchet under deblocking piece's effect and realizes the unblock.

2. The swing lock mechanism according to claim 1, wherein the power source of the unlocking member is a linear motion member or a rotational motion member.

3. A swing lock mechanism according to claim 2, wherein the linear motion member is a pneumatic cylinder or an electromagnet.

4. The swing lock mechanism according to claim 2, wherein the rotating member is an electric hoist or a hydraulic winch.

5. A swing lock mechanism according to claim 1, wherein the lock return spring is a linear or torsion spring.

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