CN219081282U - Rotary lock and roller shutter cover - Google Patents

Abstract

The utility model discloses a rotary lock, which comprises a lock shell, wherein a rising rotary handle and a rotary block which is connected to the rotary handle and is positioned in the lock shell are arranged on the lock shell; the lock shell is also provided with a lock core component which is used for adjusting the rotation or stop of the rotating block; the lock comprises a lock shell, a first lock tongue pulling piece and a second lock tongue pulling piece, wherein the first lock tongue pulling piece is rotatably arranged in the lock shell, a first lock tongue assembly is connected to the first lock tongue pulling piece, and a second lock tongue assembly is connected to the second lock tongue pulling piece; the lock shell is internally provided with a lock tongue control block in a rotating way, wherein the lock tongue control block is used for pushing the first lock tongue pulling piece and the second lock tongue pulling piece to open reversely; the lock shell is internally provided with a lock tongue rotating piece for transmitting the power of the rotating block to the lock tongue control block; the rolling shutter cover is provided with a rotary lock on the tail door page to realize opening and closing; the rotary handle is used as a driving piece, so that the handle is convenient to hold and practical, and labor is saved during unlocking.

Description

Rotary lock and roller shutter cover

Technical Field

The utility model relates to the technical field of roller blind covers of pickup trucks, in particular to a rotary lock and a roller blind cover.

Background

The rolling shutter cover structure is arranged on the hopper of the pick-up truck, and the rolling shutter cover structure is adjusted to open and close through expansion, so that goods are placed in the truck head or taken out; the general shutter cover structure includes shutter cover case and slidable mounting shutter leaf subassembly on shutter cover case to be provided with the rolling case on shutter cover case, specifically set up the rolling axle and realize automatic rolling to shutter leaf subassembly in the rolling incasement, and then lock shutter leaf subassembly's closed condition through setting up the lock on shutter leaf subassembly when needs are closed.

As shown in fig. 1 and 2, the conventional lock structure comprises a lock base 21 and a lock cylinder assembly 4 mounted on the lock base 21, wherein a handle 20 embedded on the lock base 21 is connected to the lock cylinder assembly 4, and a lock cylinder transmission member 22, a lock tongue control block 9, a first lock tongue pulling member 5 and a second lock tongue pulling member 6 are mounted inside the lock base 21; specifically, when unlocking, after the lock core assembly 4 is unlocked by the key, the lock core assembly 4 is pressed by a finger, the lock core is pushed to push the lock core transmission piece 22, and the lock tongue control block 9 is pushed to rotate the first lock tongue pulling piece 5 and the second lock tongue pulling piece 6, so that unlocking action is realized. Because the hopper position of the pick-up truck has a certain height, the mode of unlocking by pressing downwards with fingers has a certain height to the operator and ensures the pressing action force, so that the current unlocking mode is inconvenient for shorter people.

Disclosure of Invention

First technical problem

The utility model aims to provide a rotary lock and a roller shutter cover, which solve the problem that in the prior art, a lock cylinder is pressed to drive an unlocking mode to have certain height and pressure force requirements on an operator, so that the unlocking operation is very inconvenient.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a rotary lock comprising a lock housing having mounted thereon an emerging rotary handle and a rotary block connected to the rotary handle and located inside the lock housing; the lock shell is also provided with a lock core assembly which is used for adjusting the rotation or stop of the rotating block; the lock comprises a lock shell, a first lock tongue pulling piece and a second lock tongue pulling piece, wherein the first lock tongue pulling piece is rotatably arranged in the lock shell, a first lock tongue assembly is connected to the first lock tongue pulling piece, and a second lock tongue assembly is connected to the second lock tongue pulling piece; a lock tongue control block for pushing the first lock tongue pulling piece and the second lock tongue pulling piece to open reversely is also rotatably arranged in the lock shell; the lock shell is internally provided with a lock tongue rotating piece for transmitting the power of the rotating block to the lock tongue control block.

Preferably, the rotating handle comprises a holding part and a connecting part connected with the holding part and extending obliquely downwards; the connecting part is provided with a handle core rod penetrating through the lock shell, and the rotating block is arranged on the handle core rod.

Preferably, the rotating block comprises a mounting sleeve, and the mounting sleeve is provided with a first protruding block protruding outwards and used for pushing the lock tongue rotating piece; the mounting sleeve is also provided with a second bump protruding outwards and matched with the lock cylinder assembly;

the mounting sleeve is also provided with a torsion spring sleeved on the handle core rod.

Preferably, the lock tongue rotating member comprises two supporting seats which are fixedly arranged in the lock shell and are arranged at intervals, a bolt and a pushing member which is rotatably arranged on the bolt are arranged on the two supporting seats, and a pushing part which is abutted against the first protruding block is arranged on the pushing member; the axis of the bolt is vertical to the axis of the mounting sleeve in space.

Preferably, the lock tongue control block comprises a control block body rotatably mounted on the lock shell, a contact part for contacting the pushing part is arranged on the control block body, and the rotation axis of the control block body is vertical to the axis of the bolt in space; the control block body is also provided with a thin contact end part for pushing the first bolt pulling piece and the second bolt pulling piece to open reversely; and the control block body is provided with a reset impact block positioned at the contact part.

Preferably, the lock cylinder assembly includes a lock outer core fixedly mounted to the lock housing and a lock inner core rotatably mounted within the lock outer core; the lock comprises a lock outer core, a lock inner core and a lock outer core, wherein the lock outer core is provided with a lock tongue piece in a sliding mode, an eccentric chute is formed in the lock tongue piece, and a convex column extending into the eccentric chute is arranged on the lock inner core; and the lock tongue piece is provided with a stop clamping groove matched with the second convex block.

Preferably, the lock tongue switch is connected to the lock tongue control block and used for driving the lock tongue control block to rotate.

Preferably, an outer cover for covering the lock cylinder assembly is rotatably arranged on the lock shell, and a rubber pad for sealing protection is embedded in the outer cover.

Preferably, the first lock tongue assembly comprises a first steel wire rope connected to a first lock tongue pull and a first lock tongue card connected to the first steel wire rope; the second lock tongue assembly comprises a second steel wire rope connected to a second lock tongue pull and a second lock tongue card connected to the second steel wire rope; and the first spring bolt card and the second spring bolt card are connected with reset springs.

The utility model also provides a roller shutter cover, which comprises a roller shutter cover box and a roller shutter blade assembly slidably arranged on the roller shutter cover box, wherein the tail part of the roller shutter cover box is provided with a rolling box for rolling the roller shutter blade assembly; the roller shutter assembly includes a tail gate page; the rotary lock is arranged on the tail door leaf, the lock shell is fixedly arranged on the tail door leaf, and the first lock tongue component and the second lock tongue component are respectively inserted into the end heads of the side rod of the roller shutter cover box at the corresponding sides.

(III) beneficial effects

The rotary handle which is out of the lock shell rotates to drive the rotary block to synchronously rotate, so that the bolt rotating piece is driven to drive the bolt control block to rotate, the first bolt pulling piece and the second bolt pulling piece are unfolded in opposite directions, the first bolt assembly and the second bolt assembly are pulled to realize unlocking operation, and the rotation of the rotary block is controlled through the lock core assembly; therefore, after the lock cylinder is opened and the unlocking of the rotating block is realized, the unlocking operation can be realized after the rotating handle rotates; compared with the lock structure in the prior art, the internal driving is realized by adopting the torque of the rotary handle, so that the hand is convenient to hold, the force is not limited by the height of an operator, and the rotary operation can be realized as long as the rotary handle is held.

Drawings

FIG. 1 is a schematic view of a prior art lock construction;

FIG. 2 is a schematic bottom view of a prior art lock structure;

FIG. 3 is a schematic view of a rotary lock according to the present utility model;

FIG. 4 is a schematic view of the bottom structure of FIG. 3;

FIG. 5 is a schematic view of the structure of the bolt rotator in the rotary lock;

FIG. 6 is a schematic view of the structure of a rotary handle connection rotary block in a rotary lock;

FIG. 7 is a schematic view of the structure of the plug assembly in the rotary lock;

FIG. 8 is a schematic diagram of a deadbolt control block in a rotary lock;

FIG. 9 is a schematic view of the structure of the rotary lock in an open state;

FIG. 10 is a schematic view of the application of a rotary lock to a roller blind cover;

FIG. 11 is a schematic view of a rotary lock applied to a roller blind cover in an unlocked state;

FIG. 12 is a schematic view of a rotary lock applied to a roll-up cover in a locked state;

in fig. 1 to 12, the correspondence between the component names or lines and the drawing numbers is:

the lock housing 1, the rotary handle 2, the grip 21, the connection 22, the handle core 23, the rotary block 3, the mounting sleeve 31, the first projection 32, the second projection 33, the cylinder assembly 4, the lock outer core 41, the lock inner core 42, the tongue piece 43, the eccentric chute 44, the boss 45, the stopper slot 46, the first tongue pull 5, the second tongue pull 6, the first tongue assembly 7, the first wire rope 71, the first tongue card 72, the second tongue assembly 8, the second wire rope 81, the second tongue card 82, the tongue control block 9, the control block body 91, the contact 92, the contact tip 93, the reset strike 94, the tongue rotator 10, the support 101, the latch 102, the push piece 103, the push portion 104, the tongue switch 11, the outer cover 12, the rubber pad 13, the reset spring 14, the roll cover case 15, the roll shutter assembly 16, the roll case 17, the tail gate 18, the side bar 19, the handle 20, the lock base 21, the transmission member 22, the rotary lock 100.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 3, 4 and 9, in the embodiment of the present utility model, a rotary lock 100 is provided, and the rotary lock 100 is specifically used for a roller shutter cover to control the open/close state of the roller shutter cover, and in the prior art, the use is inconvenient by pressing and unlocking a lock cylinder, and the height of an operator is limited, so that improvement of the rotary lock 100 is required to improve the convenience of use. Specifically, the rotary lock 100 includes a lock housing 1, a protruding rotary handle 2 and a rotary block 3 connected to the rotary handle 2 and located inside the lock housing 1 are installed on the lock housing 1, that is, the rotary handle 2 can rotate relative to the lock housing 1 to enable the rotary block 3 to rotate, and the rotary handle 2 protrudes from the lock housing 1 to facilitate the operator to hold. Meanwhile, the lock cylinder assembly 4 is further installed on the lock housing 1, the lock cylinder assembly 4 is used for adjusting the rotation or stop of the rotating block 3, the lock cylinder assembly 4 is used for controlling whether the rotating block 3 can rotate or not, the aim is to avoid the situation that the rotating handle 2 is rotated by mistake, and meanwhile, the aim is to achieve secondary locking on the locking state of the whole rotary lock 100, so that the locking stability of the rotary lock 100 is improved.

Simultaneously the inside rotation of lock shell 1 is installed first spring bolt pull piece 5 and second spring bolt pull piece 6, be connected with first spring bolt subassembly 7 on the first spring bolt pull piece 5, be connected with second spring bolt subassembly 8 on the second spring bolt pull piece 6, first spring bolt pull piece 5 is equipped with first spring bolt subassembly 7 action, second spring bolt pull piece 6 is equipped with second spring bolt subassembly 8 action and all can follow the slide rail of corresponding roller shutter lid and slide, realize the state operation of roller shutter lid unblock, in order to carry out synchronous drive to first spring bolt pull piece 5, second spring bolt pull piece 6 still rotate and install be used for promoting first spring bolt pull piece 5 and second spring bolt pull piece 6 are reverse open spring bolt control block 9, can make first spring bolt pull piece 5, second spring bolt pull piece 6 be reverse rotation after the spring bolt control block 9 rotates promptly to realize to first spring bolt subassembly 7, second spring bolt subassembly 8 back to realize the unblock from the locking position of roller shutter lid to withdraw from.

Specifically, the rotation force of the rotating block 3 is transmitted to the rotation driving of the lock tongue control block 9, and the lock tongue rotating piece 10 for transmitting the power of the rotating block 3 to the lock tongue control block 9 is further arranged in the lock shell 1, so that the rotation pushing force of the rotating block 3 can be transmitted to the rotation power of the lock tongue control block 9 through the lock tongue rotating piece 10, and the synchronous driving of the lock tongue control block 9 to the first lock tongue pulling piece 5 and the second lock tongue pulling piece 6 is realized.

In order to facilitate the holding of the rotary handle 2 and transfer the rotary power to the internal rotary block 3, as shown in fig. 6, the specific rotary handle 2 includes a holding portion 21 and a connecting portion 22 connected to the holding portion 21 and extending obliquely downward, where the holding portion 21 is in a cuboid shape, so as to facilitate the pushing after the holding, and the holding portion 21 is far away from the lock housing 1 by a certain height under the action of the connecting portion 22, so that the holding portion 21 is also convenient for the hand to form a good holding. Simultaneously, install on connecting portion 22 and pass handle plug 23 of lock shell 1, rotatory piece 3 is installed on handle plug 23, also reliably install on lock shell 1 to whole twist grip 2 when fixing rotatory piece 3 through handle plug 23, in order to improve rotation flexibility, reduce frictional force, can set up the swivel ring structure that reduces frictional force between connecting portion 22 and lock shell 1, between rotatory piece 3 and lock shell 1, be convenient for improve the flexibility when rotating twist grip 2.

The rotating block 3 comprises a mounting sleeve 31, wherein the mounting sleeve 31 is mainly and fixedly arranged on the handle core rod 23, and particularly the mounting sleeve 31 can be locked through a screw and a gasket, and in order to facilitate pushing of the bolt rotating member 10, the mounting sleeve 31 is provided with a first protruding block 32 protruding outwards and used for pushing the bolt rotating member 10; meanwhile, in order to facilitate the lock cylinder assembly 4 to stop or unlock the second bump 33, the mounting sleeve 31 is further provided with the second bump 33 protruding outwards and matched with the lock cylinder assembly 4, that is, the lock cylinder assembly 4 is matched with the second bump 33 to limit whether the rotating sleeve and the rotating handle 2 can rotate. Meanwhile, the mounting sleeve 31 is also provided with a torsion spring sleeved on the handle core rod 23, and the rotary handle 2 can be quickly reset to assist after rotating through the action of the torsion spring.

Specifically, the lock tongue rotating member 10 is matched with the first protruding block 32, that is, after the installation sleeve 31 is rotated by the rotating handle 2, the first protruding block 32 drives the lock tongue rotating member 10 to act, so as to realize driving of the lock tongue control block 9, as shown in fig. 5, the lock tongue rotating member 10 comprises two supporting seats 101 fixedly installed inside the lock shell 1 and arranged at intervals, the two supporting seats 101 are provided with a bolt 102 and a pushing member 103 rotatably installed on the bolt 102, the pushing member 103 is provided with a pushing part 104 abutted to the first protruding block 32, the pushing member 103 can rotate relative to the bolt 102 under the action of the bolt 102, the whole pushing member 103 is pushed after the first protruding block 32 contacts with the pushing part 104, and the axis of the bolt 102 is in spatial vertical with the axis of the installation sleeve 31, that is, the rotation axis of the rotating handle 2 is in spatial vertical with the rotation axis of the pushing member 103, so that the rotation acting force transmitted to the pushing member 103 is not on the same plane, but in spatial transmission mode, the three-dimensional assembly of the whole structure is facilitated, and the fast acting force after the conversion and the rotation direction is quickly transmitted.

After being pushed to rotate by the pushing piece 103, the bolt control block 9 is pushed to rotate, so that the simultaneous rotation driving of the first bolt pull piece 5 and the second bolt pull piece 6 is realized, specifically, as shown in fig. 8, the bolt control block 9 comprises a control block body 91 rotatably mounted on the lock shell 1, a contact part 92 for contacting the pushing part 104 is arranged on the control block body 91, and the rotation axis of the control block body 91 is vertical to the axis of the bolt 102, namely, after the acting force is transmitted to the control block body 91 by the pushing piece 103, the rotation axis of the control block body 91 is parallel to the rotation axis of the rotary handle 2, thereby realizing the power transmission in a transmission chain with intervals at space positions; specifically still be equipped with on the control block body 91 and be used for promoting first spring bolt pull 5 and the thin tip 93 of contact that second spring bolt pull 6 was reverse open, simultaneously be equipped with on the control block body 91 and be located the impact piece 94 that resets of contact 92 position department, impact piece 94 that resets is located contact 92 position department, lets contact 92 tip break away from first spring bolt pull 5, second spring bolt pull 6 through impact piece 94 atress that resets when closing the roll screen lid to let first spring bolt pull 5, second spring bolt pull 6 reset, form the locking state.

To accommodate the automatic reset lockout, as shown in fig. 2, the first latch bolt assembly 7 includes a first wire rope 71 connected to the first latch bolt pull 5, and a first latch bolt card 72 connected to the first wire rope 71; the second latch bolt assembly 8 comprises a second wire rope 81 connected to the second latch bolt pull member 6, and a second latch bolt card 82 connected to the second wire rope 81, namely, the first latch bolt card 72 and the second latch bolt card 82 are withdrawn from the limit positions by transmitting tension force when the first wire rope 71 and the second wire rope 81 are unlocked to realize unlocking; meanwhile, the first latch bolt card 72 and the second latch bolt card 82 are both connected with the return spring 14, and the latch bolt control block 9 is reset and rotated by the action of the return spring 14 and the return impact block 94, so that the first latch bolt card 72 and the second latch bolt card 82 can be inserted into the limiting positions again, and the action can be performed when the roller shutter cover is closed.

Whether the rotary handle 2 can be rotated to lock or unlock is achieved by the cooperation of the lock cylinder assembly 4 and the second projection 33, specifically, as shown in fig. 7, the lock cylinder assembly 4 includes a lock outer core 41 fixedly installed on the lock housing 1 and a lock inner core 42 rotatably installed in the lock outer core 41; the lock outer core 41 is provided with a lock tongue piece 43 in a sliding manner, the lock tongue piece 43 is provided with an eccentric chute 44, and the lock inner core 42 is provided with a convex column 45 extending into the eccentric chute 44; the latch bolt piece 43 is provided with a stop slot 46 matched with the second bump 33; after the key is inserted into the lock core 42, the lock core 42 is driven to rotate, the convex column 45 rotates in the eccentric chute 44, so that the lock tongue piece 43 slides relative to the lock outer core 41, and when the lock is locked, the lock tongue piece 43 stretches out and the stop clamping groove 46 is matched with the second convex block 33 to form a stop state; when the rotary handle is unlocked, the lock tongue piece 43 stretches into the locking slot 46 and is separated from the second bump 33 to realize an unlocking state, so that the rotary handle 2 can be in a rotating state; thus, the lock cylinder assembly 4 can realize the secondary locking of the rotation of the rotary handle 2, and the dual locking safety and reliability can be realized.

In practice, in order to avoid misoperation to close the person in the car hopper, the situation that the switch needs to be left inside to realize the inside unblock is avoided leaving the potential safety hazard, as shown in fig. 3 and 4, the lock tongue switch 11 is specifically further included, the lock tongue switch 11 is connected to the lock tongue control block 9 and is used for driving the lock tongue control block 9 to rotate, the lock tongue control block 9 can be rotated inside through rotating the lock tongue switch 11 to realize the unlocking operation to the first lock tongue component 7 and the second lock tongue component 8, and the safety in the practical process is further improved.

In order to improve the tightness and the protection of the lock cylinder assembly 4 in the practical process, as shown in fig. 3, an outer cover 12 for covering the lock cylinder assembly 4 is rotatably installed on the lock housing 1, and a rubber pad 13 for sealing and protecting is embedded in the outer cover 12; the rubber pad 13 can press the lock cylinder assembly 4 to seal the inside, and the outer cover 12 is convenient for synchronously rotating the rubber pad 13 to expose the lock cylinder assembly 4.

On the basis of the above embodiment, as shown in fig. 10, there is also provided a roller shutter cover, which comprises a roller shutter cover case 15 and a roller shutter assembly 16 slidably mounted on the roller shutter cover case 15, wherein a roller case 17 for rolling the roller shutter assembly 16 is disposed at the tail of the roller shutter cover case 15, and a rolling shaft for automatically rolling the roller shutter assembly 16 is generally disposed in the roller case 17, so that the roller shutter assembly 16 is rolled on the rolling shaft and stored in the roller case 17 in an opened state, and when the roller shutter assembly 16 needs to be closed, the roller shutter assembly 16 is manually pulled to extend and be locked on the roller shutter cover case 15, specifically, the roller shutter assembly 16 comprises a tail door leaf 18, and by mounting a rotary lock 100 on the tail door leaf 18, whether the tail door leaf 18 is locked on the roller shutter cover case 15 is controlled by the rotary lock 100. Specifically, the whole rotary lock 100 is fixedly installed on the tail gate page 18 through the lock housing 1, and the first lock tongue assembly 7 and the second lock tongue assembly 8 can be inserted into the side rod end 19 of the roller shutter cover case 15 to achieve locking after being installed through the internal sliding rail structure, as shown in fig. 12, or when the rotary lock 100 is unlocked, the first lock tongue assembly 7 and the second lock tongue assembly 8 are withdrawn from the side rod end 19 of the roller shutter cover case 15 to achieve unlocking, as shown in fig. 11. The construction and operation of the other roller shutter cover case 15 is disclosed in the prior application and will not be described in detail in the present application.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A rotary lock, characterized in that: the lock comprises a lock shell (1), wherein the lock shell (1) is provided with a rotary handle (2) which is out and a rotary block (3) which is connected with the rotary handle (2) and is positioned in the lock shell (1);

the lock shell (1) is also provided with a lock core assembly (4), and the lock core assembly (4) is used for adjusting the rotation or stop of the rotating block (3);

the novel lock is characterized in that a first lock tongue pulling piece (5) and a second lock tongue pulling piece (6) are rotatably arranged in the lock shell (1), a first lock tongue assembly (7) is connected to the first lock tongue pulling piece (5), and a second lock tongue assembly (8) is connected to the second lock tongue pulling piece (6);

a bolt control block (9) used for pushing the first bolt pulling piece (5) and the second bolt pulling piece (6) to open reversely is also rotatably arranged in the lock shell (1);

the lock is characterized in that a lock tongue rotating piece (10) used for transmitting the power of the rotating block (3) to the lock tongue control block (9) is further arranged in the lock shell (1).

2. A rotary lock according to claim 1, wherein: the rotary handle (2) comprises a holding part (21) and a connecting part (22) which is connected with the holding part (21) and extends obliquely downwards;

the connecting part (22) is provided with a handle core rod (23) penetrating through the lock shell (1), and the rotating block (3) is arranged on the handle core rod (23).

3. A rotary lock according to claim 2, wherein: the rotating block (3) comprises a mounting sleeve (31), and a first protruding block (32) protruding outwards and used for pushing the lock tongue rotating piece (10) is arranged on the mounting sleeve (31);

the mounting sleeve (31) is also provided with a second protruding block (33) protruding outwards and matched with the lock cylinder assembly (4);

the mounting sleeve (31) is also provided with a torsion spring sleeved on the handle core rod (23).

4. A rotary lock according to claim 3, wherein: the lock tongue rotating member (10) comprises two supporting seats (101) fixedly arranged in the lock shell (1) at intervals, a bolt (102) and a pushing member (103) rotatably arranged on the bolt (102) are arranged on the two supporting seats (101), and a pushing part (104) propped against the first protruding block (32) is arranged on the pushing member (103);

the axis of the bolt (102) is vertical to the axis of the mounting sleeve (31).

5. A rotary lock according to claim 4, wherein: the lock tongue control block (9) comprises a control block body (91) rotatably mounted on the lock shell (1), a contact part (92) for contacting the pushing part (104) is arranged on the control block body (91), and the rotation axis of the control block body (91) is vertical to the axis of the bolt (102) in space;

the control block body (91) is also provided with a contact thin end part (93) for pushing the first bolt pulling piece (5) and the second bolt pulling piece (6) to open reversely;

the control block body (91) is provided with a reset impact block (94) positioned at the position of the contact part (92).

6. A rotary lock according to claim 3, wherein: the lock core assembly (4) comprises a lock outer core (41) fixedly mounted on the lock housing (1) and a lock inner core (42) rotatably mounted in the lock outer core (41); a lock tongue piece (43) is slidably arranged on the lock outer core (41), an eccentric chute (44) is formed in the lock tongue piece (43), and a convex column (45) extending into the eccentric chute (44) is arranged on the lock inner core (42);

the lock tongue piece (43) is provided with a stop clamping groove (46) matched with the second lug (33).

7. A rotary lock according to claim 1, wherein: the lock tongue switch (11) is connected to the lock tongue control block (9) and used for driving the lock tongue control block (9) to rotate.

8. A rotary lock according to claim 1, wherein: an outer cover (12) for covering the lock cylinder assembly (4) is rotatably arranged on the lock shell (1), and a rubber pad (13) for sealing protection is embedded in the outer cover (12).

9. A rotary lock according to claim 1, wherein: the first spring bolt assembly (7) comprises a first steel wire rope (71) connected to the first spring bolt pull piece (5), and a first spring bolt clamp (72) connected to the first steel wire rope (71);

the second spring bolt assembly (8) comprises a second steel wire rope (81) connected to the second spring bolt pull piece (6), and a second spring bolt clamp (82) connected to the second steel wire rope (81);

and the first spring bolt card (72) and the second spring bolt card (82) are connected with a return spring (14).

10. The rolling shutter cover comprises a rolling shutter cover box (15) and a rolling shutter blade assembly (16) which is slidably arranged on the rolling shutter cover box (15), wherein a rolling box (17) for rolling the rolling shutter blade assembly (16) is arranged at the tail part of the rolling shutter cover box (15);

the roller shutter assembly (16) includes a tail gate page (18);

the method is characterized in that:

the tail door leaf (18) is provided with a rotary lock as claimed in any one of claims 1 to 9, the lock shell (1) is fixedly arranged on the tail door leaf (18), and the first lock tongue component (7) and the second lock tongue component (8) are respectively inserted into side rod ends (19) of the roller shutter cover box (15) at corresponding sides.

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