CN-224229045-U - Mechanical locking mechanism

CN224229045UCN 224229045 UCN224229045 UCN 224229045UCN-224229045-U

Abstract

The utility model belongs to the technical field of mechanical locking, and discloses a mechanical locking mechanism which comprises a fixed disc, a large turntable, a small turntable, a limiter and a bolt, wherein the large turntable is in rotary connection with the fixed disc, the small turntable is in rotary connection with the large turntable, the limiter is in sliding connection with the large turntable along the radial direction of the large turntable, the limiter comprises a limit lock catch, an upper limit block and a lower limit block, the upper limit block is arranged on the upper surface of the limit lock catch, the lower limit block is arranged on the lower surface of the limit lock catch, a first clamping groove matched with the upper limit block is arranged on the circumference of the small turntable, a second clamping groove matched with the lower limit block is arranged on the circumference of the fixed disc, the lower limit block is connected with a spring, the other end of the spring is connected with the large turntable, the upper limit block is positioned in the first clamping groove when the bolt is inserted into the limiter, the lower limit block is separated from the second clamping groove, the upper limit block is separated from the first clamping groove when the bolt is separated from the limiter, and the spring is positioned in the second clamping groove, and the spring is in a stretching state.

Inventors

LIANG XIAOLONG
ZENG ZHIJIA
CHEN YONGCAN

Assignees

广东金仕伦清洗技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250626

Claims (5)

1. The mechanical locking mechanism is characterized by comprising a fixed disc (1), a large rotary disc (2), a small rotary disc (3), a limiter and a plug pin (5) for limiting the position of the limiter, wherein the large rotary disc (2) is rotationally connected with the fixed disc (1), the small rotary disc (3) is rotationally connected with the large rotary disc (2), and the large rotary disc (2) is positioned between the fixed disc (1) and the small rotary disc (3); The limiter is in sliding connection with the large turntable (2) along the radial direction of the large turntable (2), the limiter comprises a limiting lock catch (41), an upper limiting block (42) and a lower limiting block (43), the upper limiting block (42) is arranged on the upper surface of the limiting lock catch (41) and protrudes out of the upper surface of the large turntable (2), and the lower limiting block (43) is arranged on the lower surface of the limiting lock catch (41) and protrudes out of the lower surface of the large turntable (2); the circumference of the small turntable (3) is provided with a first clamping groove (31) matched with the upper limiting block (42); The circumference of the fixed disc (1) is provided with a second clamping groove (11) matched with the lower limiting block (43); the lower limiting block (43) is connected with a spring (6), and the other end of the spring (6) is connected with the large turntable (2); When the bolt (5) is inserted into the limiter, the upper limiting block (42) is positioned in the first clamping groove (31), and the lower limiting block (43) is separated from the second clamping groove (11); When the bolt (5) is separated from the limiter, the upper limiting block (42) is separated from the first clamping groove (31), the lower limiting block (43) is positioned in the second clamping groove (11), and the spring (6) is in a stretching state.
2. A mechanical locking mechanism according to claim 1, further comprising a position sensor (7) for detecting whether the lower stopper (43) is in the second detent (11).
3. A mechanical locking mechanism according to claim 1, wherein the openings of the first and second clamping grooves (31, 11) are flared by flaring.
4. A mechanical locking mechanism according to claim 1, characterized in that the limit catch (41) is provided with a receptacle for cooperation with the bolt (5).
5. A mechanical locking mechanism according to claim 4, wherein the outer end of the limit lock catch (41) is provided with a pull ring which is convenient for pushing and pulling.

Description

Mechanical locking mechanism Technical Field The utility model belongs to the technical field of mechanical locking, and particularly relates to a mechanical locking mechanism. Background Foup cleaning machine is a cleaning equipment, mainly used in the semiconductor manufacturing process to clean and dry FOUP (Front Opening Unified Pod) and other wafer material boxes, and is widely applicable to the semiconductor industry. Foup the rotating mechanism in the washer requires efficient, reliable motion constraints to ensure that the rotating mechanism is in the correct locked or unlocked state. Thus, a mechanical locking mechanism is provided to achieve the above-described functions. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide a mechanical locking mechanism. In order to achieve the technical purpose, the utility model adopts the following technical scheme: The mechanical locking mechanism comprises a fixed disc, a large rotary disc, a small rotary disc, a limiter and a bolt for limiting the position of the limiter, wherein the large rotary disc is rotationally connected with the fixed disc, the small rotary disc is rotationally connected with the large rotary disc, and the large rotary disc is positioned between the fixed disc and the small rotary disc; The limiter is in sliding connection with the large turntable along the radial direction of the large turntable, the limiter comprises a limiting lock catch, an upper limiting block and a lower limiting block, the upper limiting block is arranged on the upper surface of the limiting lock catch and protrudes out of the upper surface of the large turntable, and the lower limiting block is arranged on the lower surface of the limiting lock catch and protrudes out of the lower surface of the large turntable; the circumference of the small turntable is provided with a first clamping groove matched with the upper limiting block; The circumference of the fixed disc is provided with a second clamping groove matched with the lower limiting block; The lower limiting block is connected with a spring, and the other end of the spring is connected with the large turntable; When the bolt is inserted into the limiter, the upper limiting block is positioned in the first clamping groove, and the lower limiting block is separated from the second clamping groove; when the bolt is separated from the limiter, the upper limiting block is separated from the first clamping groove, the lower limiting block is positioned in the second clamping groove, and the spring is in a stretching state. In Foup, in the cleaning machine, the rotation freedom degree of the small turntable is required to be limited, the rotation freedom degree of the large turntable is required to be kept in an initial opening state, at the moment, the bolt is matched with the limiter, the position of the limiter is fixed by the bolt, the upper limit block is positioned in a first clamping groove of the small turntable, so that the small turntable is circumferentially limited, the lower limit block is separated from a second clamping groove and can freely rotate, when the Foup cleaning machine needs to keep a locking state, the small turntable needs to be freely rotated, the rotation freedom degree of the large turntable is limited, at the moment, the bolt is separated from a limit lock catch of the limiter, the limiter is manually pushed, the upper limit block is separated from the first clamping groove of the small turntable, the lower limit block enters the second clamping groove and drives a spring to stretch, in order to keep the state, at the moment, the circumference of the small turntable is required to rotate, the position of the first clamping groove is not arranged in the upper limit block is abutted against the upper limit block, the upper limit block is kept motionless, if the small turntable needs to return to the initial rotation state, and the bolt is required to be automatically contracted to be automatically moved into the first clamping groove when the small clamping groove is required to be in a position corresponding to the opening state, and the lower limit block can be automatically contracted to the position. The utility model has the beneficial effects that through the exquisite structural design, the effective and reliable motion constraint of the rotating mechanism in the Foup cleaning machine is realized, the rotating mechanism is ensured to be in a correct locking or opening state, the scheme is simple to operate, and the rotating mechanism can automatically tend to an initial state under the action of the tensile force of the spring when required. Drawings The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings; FIG. 1 is a schematic view of a first structure of an embodiment of the present utility model in an open state; FIG. 2 is an enlarged view of a portion of the embodi