Large-stroke self-locking auxiliary lock

Abstract

The utility model relates to a large-stroke self-locking type auxiliary lock which aims at solving the technical problems that an existing similar product is short in locking stroke, short in service life and prone to being damaged and lacks self-locking. An opening is formed in the top of a base of the auxiliary lock, and a steel bolt which swings through a pin and a torsional spring at the pin is arranged in the opening of the base. The key points are that one side of the top opening of the base is a locking opening, one side of the bottom of the gear is provided with a gear shaft, the gear shaft of the gear penetrates through arc-shaped holes symmetrically formed in the two sides of the base, and the steel bolt is Z-shaped; when the lower portion of one end of the steel bolt abuts against a gear shaft of the gear in the base, a gear ring on the top of the gear on the outer side of the base is connected with a transmission piece and rotates synchronously with the transmission piece to drive the other end of the steel bolt at the locking opening of the base to swing up and down through a pin and a torsion spring, and a split washer is arranged at the tail end of the pin extending out of the base. The transmission part is a synchronous belt, a rack, a steel wire rope or a connecting rod, a gear cover is arranged on the outer diameter of a gear ring of the gear on the outer side of the base, and the joint of the transmission part and the gear ring of the gear is located in the gear cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lock of industrial cabinet, automation control manufacturing, energy storage, automatic inspection equipment industry door body and industrial cabinet door, in particular to a big stroke self -locking type vice lock. BACKGROUND

[0002] At present, the door body and cabinet door of industrial cabinet and other products on the market are generally mainly opened by key, including turn lock or heaven and earth lock and the like. Among them, some such door body and cabinet door lock as vice lock are used for linkage opening or closing. At present, the vice lock matched with electronic lock, door closer or mechanical lock in the industry on the market generally has the problems of short locking stroke, lack of self-locking function and the like, and the main lock (electronic lock, door closer or mechanical main lock) is locked but the vice lock is not locked, or the force generated by the locking of the vice lock is applied to the main lock through the transmission structure, resulting in that the main lock always bears a large force and is prone to damage or has a low service life. The self-locking type lock applied to such vice lock has a structure, such as the Chinese patent document with the application number 202010109620.4, the application publication date 2020.06.05 and the invention name "a device for automatically closing cabinet door at a certain time", which mainly realizes automatic closing of cabinet door through a conveyor belt and belongs to a kind of door closer. However, the door frame of the cabinet door of the above product and similar products lacks a vice lock structure design of buckling structure, and the existing similar vice lock structure is also difficult to meet the requirements of the above long stroke, long service life and low damage. SUMMARY

[0003] In order to overcome the above-mentioned defects, the utility model aims at providing a big stroke self-locking type vice lock for automatically opening and closing the cabinet door, so as to solve the technical problems of short locking stroke, lack of self-locking function, low service life and easy damage of the existing similar products. The purpose is realized through the following technical scheme.

[0004] A big stroke self-locking type vice lock, the top of the base of the vice lock is provided with an opening, the opening in the base is provided with a steel bolt which is swung by a pin and a torsional spring at the pin; the structure design points of the vice lock are that one side of the opening at the top of the base is a lock opening, one side of the bottom of the gear is provided with a gear shaft, the gear shaft of the gear penetrates through the arc-shaped holes symmetrically arranged on both sides of the base, and the steel bolt is in Z shape; the lower end of one end of the steel bolt is in abutment with the gear shaft of the gear inside the base, at the same time, the gear ring at the top of the gear outside the base is connected with the transmission member and rotates synchronously, the other end of the steel bolt at the lock opening of the base is swung up and down through the pin and the torsional spring, and the end of the pin extending out of the base is provided with an opening blocking ring; the transmission member is a synchronous belt, a rack, a steel wire rope or a connecting rod. Thus, the gear shaft of the gear is respectively limited to swing of the steel bolt when the gear shaft is at both ends of the arc-shaped hole of the base, and the steel bolt is respectively in the open state and the locked state when the gear shaft at both ends of the arc-shaped hole limits the steel bolt.

[0005] The arc-shaped holes on both sides of the base are 90 degrees centered on the central shaft of the gear bottom, and when the gear shaft of the gear drives the steel bolt to rotate to the locking state, the steel bolt is self-locked at the dead point position, and the gear shaft of the steel bolt is limited to swing in the base, and the arc-shaped hole at the end is in parallel locking position.

[0006] The gear shaft of the gear bottom and the central shaft in the middle of the gear bottom penetrate the end of the base and are provided with a baffle, and the gear is arranged in the base through the baffle and the screw at the end.

[0007] The outer diameter of the gear ring of the gear on the outside of the base is provided with a gear cover, and the connection position of the transmission part and the gear ring of the gear is located in the gear cover.

[0008] The top opening of the lock opening of the base is continuously opened downward from both sides, and the end and the symmetric other end of the base edge are respectively provided with mounting ears.

[0009] The bottom of the base is provided with another opening, and the mounting ear on one side of the lock opening of the base is curved outward, and the mounting ear on the other side of the base is curved inward.

[0010] The utility model discloses simple and reasonable structure design, and is convenient to produce and install, and has good stability, wide application range, especially convenient to use with corresponding door closer, and is suitable for being used as big stroke self-locking type auxiliary lock and the structural improvement of similar products. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the explosion structure schematic diagram of the utility model.

[0012] Figure 2 It is Figure 1 The assembly after the three-dimensional structure schematic diagram of.

[0013] Figure 3 It is Figure 2 The opening state internal section structure schematic diagram of.

[0014] Figure 4 It is Figure 3 The locking state internal section structure schematic diagram of.

[0015] Figure 5 It is Figure 3 The internal section structure schematic diagram from the locking state to the opening state.

[0016] Drawing serial number and name: 1, base, 101, lock opening, 102, arc-shaped hole, 2, baffle, 3, pin, 4, torsional spring, 5, steel bolt, 6, opening check ring, 7, gear, 701, gear shaft, 8, gear cover, 9, transmission part. IMPLEMENTATION

[0017] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-5 As shown, the base 1 of the auxiliary lock has an opening at the top, and a steel bolt 5 swings through a pin 3 and a torsion spring 4 at the pin inside the opening. Its specific structure is as follows: one side of the top opening of the base is a lock opening 101 that continues to open downward on both sides. The bottom side of the gear 7 is provided with a gear shaft 701. The gear shaft of the gear and the central shaft in the middle of the bottom of the gear pass through the arc-shaped holes 102 symmetrically arranged on both sides of the base, and a baffle 2 is provided. The gear is set on the base through the baffle and the screw at the end. The steel bolt is Z-shaped. At the same time, one end of the steel bolt abuts against the gear shaft of the gear inside the base, and the gear ring at the top of the gear outside the base is connected to the transmission component 9 and rotates synchronously, causing the other end of the steel bolt at the lock opening of the base to swing up and down through the pin and the torsion spring. The end of the pin that extends out of the base is provided with an open retaining ring 6. The transmission component is a synchronous belt, rack, wire rope or connecting rod.

[0018] The arc-shaped holes on both sides of the base are 90 degrees apart from the central axis of the gear bottom. When the gear shaft drives the steel bolt to rotate to the locked state, the steel bolt self-locks at the dead point position. One end of the gear shaft of the steel bolt is limited to swinging within the base, and the arc-shaped hole at that end is in a parallel locking position. A gear cover 8 is provided on the outer diameter of the gear ring of the gear on the outer side of the base, and the connection between the transmission component and the gear ring is located inside the gear cover. One end of the top opening edge of the base lock port and the other symmetrical end of the base edge are respectively provided with mounting ears; the bottom of the base has another opening. The mounting ear on one side of the base lock port is bent outward, and the mounting ear on the other symmetrical end of the base is bent inward.

[0019] In existing technology, the sealing strip of the door panel at the automatic door closer is compressed during the closing process, resulting in a large resistance when the door panel is closed to a certain angle. In order to lock all locking points at the same time, the bolt structure of the lock needs to have a large extension stroke. This auxiliary lock can meet the above requirements and effectively realize the high stroke locking and self-locking functions of the auxiliary lock.

[0020] When the door panel closes, the bolt is in the open position. The gear engages with the transmission component (which can be of many types, such as a timing belt, rack and pinion, wire rope, or connecting rod), transmitting force to the gear and causing it to rotate. The lever at the end of the gear then pushes the bolt to rotate (e.g., ...). Figure 3 As shown), the bolt rotates; when the bolt rotates to its dead center position, it self-locks, at which point the transmission component stops providing power to the bolt (as shown). Figure 4 (As shown).

[0021] When the door panel opens, the bolt is in the locked state. The transmission component provides the gear with the power to rotate in the opposite direction. When the bolt passes the dead center position and unlocks, the bolt is subjected to the torque of the torsion spring and rotates in the opposite direction with the end of the gear, thus unlocking (e.g.). Figure 5 (As shown).

[0022] In summary, the features of the sub-lock are as follows: 1. The gear as a transmission component matches with various transmission components to realize force transmission; 2. The gear rotates to push the steel bolt, and when the rotation radius is tangent to the steel bolt, a dead point position is formed, and after passing the dead point position, the steel bolt realizes self-locking; 3. The base adopts an arc-shaped hole with a waist-shaped guide groove structure, which guides and at the same time provides a limiting function for the rotation of the steel bolt; 4. The steel bolt adopts a lever structure with intermediate support, which cooperates with the rotation path of the waist-shaped guide groove to maximize the locking stroke; 5. The gear is connected with the transmission component, and the connecting component can also provide self-locking force for the steel bolt when stopping transmission.

Claims

1. A large-stroke self-locking type auxiliary lock, the base (1) of the auxiliary lock is provided with an opening at the top, a steel bolt (5) is arranged in the opening of the base through a pin (3), and a torsion spring (4) is arranged at the pin to swing the steel bolt (5); characterized in that The top opening side of the base (1) is a lock opening (101), the bottom side of the gear (7) is provided with a gear shaft (701), the gear shaft of the gear penetrates the arc-shaped holes (102) symmetrically arranged on both sides of the base, the steel bolt (5) is in Z shape; the lower end of the steel bolt is abutted with the gear shaft of the inner gear of the base, at the same time, the gear ring on the top of the outer gear of the base is connected with the transmission member (9) and rotates synchronously, drives the other end of the steel bolt at the lock opening of the base to swing up and down through the pin (3) and the torsional spring (4), the end of the pin extending out of the base is provided with an open blocking ring (6); the transmission member is a synchronous belt, a rack, a steel wire rope or a connecting rod.

2. The large-stroke self-locking secondary lock according to claim 1, characterized in that The arc-shaped holes (102) on both sides of the base (1) are 90 degrees with the center shaft at the bottom of the gear as the center, when the gear shaft (701) of the gear (7) drives the steel bolt (5) to rotate to the locked state, the steel bolt is self-locked at the dead point position, the gear shaft end of the steel bolt is limited to swing in the base, and the arc-shaped hole at this end is in parallel locking position.

3. The large-stroke self-locking secondary lock according to claim 1, characterized in that The gear shaft (701) at the bottom of the gear (7) and the center shaft in the middle of the gear bottom penetrate the baffle (2) at one end of the base (1), and the gear is arranged in the base through the baffle and the screw at the end.

4. The large-stroke self-locking secondary lock according to claim 1, characterized in that The outer diameter of the gear ring of the outer gear (7) of the base (1) is provided with a gear cover (8), and the connection position of the transmission member (9) and the gear ring of the gear is located in the gear cover.

5. The large-stroke self-locking secondary lock according to claim 1, characterized in that The top opening of the lock opening of the base (1) is continuously opened downward from both sides, and the installation ears are respectively arranged at the edge of the base at the other end symmetrically with the end.

6. The large-stroke self-locking secondary lock according to claim 5, characterized in that The bottom of the base (1) is provided with another opening, the installation ear on one side of the lock opening (101) of the base is curved outward, and the installation ear on the other side of the base symmetrically with the end is curved inward.

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