CN220849227U - Escape door lock device - Google Patents

Abstract

The utility model discloses an escape door lock device, which comprises a shell, a toggle mechanism, a transmission mechanism and a mortise lock, wherein the toggle mechanism comprises a handle, a toggle wheel and a pressing rod, one end of the handle is rotatably connected with the shell and is provided with a first rotating shaft, the first rotating shaft is connected with the toggle wheel, and the outer wall of the toggle wheel is provided with a protruding part; the transmission mechanism comprises a sliding block and a connecting seat, the sliding direction of the sliding block is perpendicular to the axial direction of the first rotating shaft, when the thumb wheel rotates, the protruding part can be abutted against and push the sliding block, one end of the connecting seat is rotatably connected with the shell and is provided with a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, and when the sliding block moves, the second rotating shaft can be driven to rotate; the lock pin lock is provided with a lock tongue and a first square rod, the first square rod is connected with a connecting seat, and the lock tongue can be driven to move when the first square rod rotates. The escape door lock device provided by the embodiment of the utility model can realize transmission between the compression bar and the first square bar, and is simple in structure and convenient to operate.

Description

Escape door lock device

Technical Field

The utility model relates to the technical field of door locks, in particular to an escape door lock device.

Background

The escape door is a safety escape checkpoint used in emergency situations such as fire disaster. The escape door lock is widely applied to escape doors, and the down-pressing escape door lock in the prior art is characterized in that a pressing rod is pressed down to rotate, so that a mechanism in a lock shell is driven to move, the lock shell or a top-bottom pin is retracted, and the escape door lock is opened.

At present, part of escape doors on the market are internally provided with a mortise lock in a door plate, the mortise lock is provided with a lock cylinder and a square rod, and the lock cylinder can be inserted through a key or a pressing rod is pressed down to enable the square rod to rotate, so that a lock tongue is retracted.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the escape door lock device provided by the utility model can push the sliding block to move through the thumb wheel, and drive the first square rod to rotate through the sliding block, so that the lock tongue is driven to move, the transmission between the pressure rod and the first square rod can be realized, and the escape door lock device is simple in structure and convenient to operate.

The escape door lock device comprises a shell, a toggle mechanism, a transmission mechanism and a mortise lock, wherein the shell is connected with a door plate and is provided with an inner cavity; the stirring mechanism comprises a handle, a stirring wheel and a pressing rod, one end of the handle is rotatably connected with the shell and is provided with a first rotating shaft, the first rotating shaft stretches into the inner cavity and is connected with the stirring wheel, the outer wall of the stirring wheel is provided with a protruding part, the other end of the handle is connected with the pressing rod, and the pressing rod is parallel to the first rotating shaft; the driving mechanism is arranged in the inner cavity, the driving mechanism comprises a sliding block and a connecting seat, the sliding block is connected to the inner wall of the inner cavity in a sliding mode, the sliding direction of the sliding block is perpendicular to the axial direction of the first rotating shaft, when the thumb wheel rotates, the protruding part can abut against and push the sliding block, one end of the connecting seat is rotatably connected to the shell and is provided with a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, the second rotating shaft is connected with the sliding block, and when the sliding block moves, the second rotating shaft can be driven to rotate; the lock pin is arranged inside the door plate, the lock pin is provided with a lock tongue and a first square rod, one end of the first square rod is rotatably connected with the lock pin, the other end of the first square rod is connected with the connecting seat, and the lock tongue can be driven to move when the first square rod rotates.

The escape door lock device according to the embodiment of the utility model has at least the following beneficial effects:

When the escape door lock device provided by the embodiment of the utility model is used, the first rotating shaft drives the thumb wheel to rotate by pressing the pressing rod, so that the protruding part is driven to abut against and push the sliding block to move, and the sliding block can drive the second rotating shaft to rotate when moving, so that the first square rod connected to the connecting seat is driven to rotate, and the lock tongue is driven to move, so that the transmission between the pressing rod and the first square rod can be realized, and the escape door lock device is simple in structure and convenient to operate.

According to some embodiments of the utility model, the sliding block is disposed on an inner wall of one side of the inner cavity adjacent to the first rotating shaft, the sliding block is provided with a sliding part and a connecting part, the connecting part is connected to one end of the sliding part, the sliding part is provided with a first sliding groove, the extending direction of the first sliding groove is perpendicular to the axial direction of the first rotating shaft, the inner wall of the inner cavity is provided with a first limiting protrusion, the first limiting protrusion is inserted into the first sliding groove, one side of the connecting part, which is close to the thumb wheel, is provided with an abutting block, the protruding part is disposed on one side, which is far away from the first rotating shaft, of the thumb wheel, the protruding part is disposed between the sliding part and the abutting block, and two opposite sides of the protruding part can respectively abut against the sliding part and the abutting block.

According to some embodiments of the utility model, the transmission mechanism further comprises a rocking handle, one end of the rocking handle is fixedly connected with the second rotating shaft, the other end of the rocking handle is connected with the sliding block, the rocking handle is perpendicular to the second rotating shaft, and the sliding block can drive the rocking handle to rotate when moving.

According to some embodiments of the utility model, a connecting rod is arranged at the end of the rocking handle, the connecting rod is arranged at one side of the rocking handle close to the sliding block, the connecting rod is perpendicular to the rocking handle, a first slot is arranged on the outer wall of the connecting part, and the connecting rod is inserted into the first slot.

According to some embodiments of the utility model, the sliding block is provided with two sliding parts, the two sliding parts are respectively connected to two opposite sides of the connecting part, the end part of the first limiting protrusion is provided with a first fixing hole, the first fixing hole is perpendicular to the extending direction of the first sliding groove, and a bolt is arranged in the first fixing hole.

According to some embodiments of the utility model, the thumb wheel is provided with a central hole, one end of the first rotating shaft is inserted into the central hole, the inner wall of the central hole is provided with a first groove, the first groove penetrates through two ends of the thumb wheel, the outer peripheral wall of the first rotating shaft is provided with a boss, and the boss is inserted into the first groove.

According to some embodiments of the utility model, a shaft sleeve is arranged on the inner wall of the inner cavity, the axial direction of the shaft sleeve is the same as the axial direction of the first rotating shaft, the first rotating shaft penetrates through the shaft sleeve, a second limiting protrusion is circumferentially arranged on the outer wall of one end of the first rotating shaft, the dial wheel is arranged between the shaft sleeve and the second limiting protrusion, one side of the dial wheel abuts against the shaft sleeve, and the other side of the dial wheel abuts against the second limiting protrusion.

According to some embodiments of the utility model, the first groove is provided as a first sector-shaped chute, the boss being slidable within the first sector-shaped chute.

According to some embodiments of the utility model, one end of the handle is fixedly connected with the compression bar, the other end of the handle is provided with a rotating part, one side of the rotating part, which is close to the shell, is provided with a first connecting hole, the end part of the first rotating shaft is correspondingly provided with a second square rod, the second square rod is inserted into the first connecting hole, the outer wall of the rotating part is provided with a second fixing hole communicated with the first connecting hole, the second fixing hole is perpendicular to the first connecting hole, and a bolt is arranged in the second fixing hole to fix the second square rod.

According to some embodiments of the utility model, a second fan-shaped chute is arranged on one side of the rotating part, which is close to the shell, and a third limit protrusion is correspondingly arranged on the outer wall of the shell and can slide in the second fan-shaped chute.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a schematic view of an escape door lock device according to some embodiments of the present utility model;

Fig. 2 is a schematic view showing a partial structure of an escape door lock apparatus according to some embodiments of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

Fig. 4 is a partially exploded view of an escape door lock apparatus according to some embodiments of the present utility model;

FIG. 5 is a schematic illustration of the structure of a slider according to some embodiments of the present utility model;

FIG. 6 is a schematic view of a connection base according to some embodiments of the present utility model;

FIG. 7 is a schematic illustration of a toggle mechanism according to some embodiments of the present utility model;

Fig. 8 is another partial structural view of an escape door lock apparatus according to some embodiments of the present utility model.

Wherein, the reference numerals:

A housing 100; a first limit protrusion 110; a first fixing hole 111; a sleeve 120; a third limit protrusion 130;

A handle 210; a rotating portion 211; a first connection hole 212; a second fixing hole 213; a second fan chute 214; a first rotation shaft 220; a boss 221; a second limit protrusion 222; a second square bar 223; a thumb wheel 230; a boss 231; a central aperture 232; a first groove 233; a pressing lever 240;

A slider 310; a sliding portion 311; a connection portion 312; a first chute 313; an abutment block 314; a first slot 315; a connection base 320; a second connection hole 321; a rocking handle 330; a connecting rod 331;

A mortise lock 400; a tongue 410; a first bar 420;

A handle 500;

a lock cylinder 600;

door panel 700.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 8, an escape door lock device according to the present utility model includes a housing 100, a toggle mechanism, a transmission mechanism, and a mortise lock 400, wherein the housing 100 is connected to a door panel 700, and the housing 100 is provided with an inner cavity; the toggle mechanism comprises a handle 210, a toggle wheel 230 and a pressing rod 240, wherein one end of the handle 210 is rotatably connected to the shell 100 and is provided with a first rotating shaft 220, the first rotating shaft 220 stretches into the inner cavity and is connected with the toggle wheel 230, the outer wall of the toggle wheel 230 is provided with a protruding part 231, the other end of the handle 210 is connected with the pressing rod 240, and the pressing rod 240 is parallel to the first rotating shaft 220; the transmission mechanism is arranged in the inner cavity and comprises a sliding block 310 and a connecting seat 320, the sliding block 310 is connected to the inner wall of the inner cavity in a sliding way, the sliding direction of the sliding block 310 is perpendicular to the axial direction of the first rotating shaft 220, when the thumb wheel 230 rotates, the protruding part 231 can abut against and push the sliding block 310, one end of the connecting seat 320 is rotatably connected to the shell 100 and is provided with a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft 220, the second rotating shaft is connected with the sliding block 310, and the second rotating shaft can be driven to rotate when the sliding block 310 moves; the mortise lock 400 is installed inside the door panel 700, the mortise lock 400 is provided with a lock tongue 410 and a first square rod 420, one end of the first square rod 420 is rotatably connected to the mortise lock 400, the other end of the first square rod 420 is connected to the connecting seat 320, and the lock tongue 410 can be driven to move when the first square rod 420 rotates.

Specifically, when the escape door lock device provided by the embodiment of the utility model is used, the pressing rod 240 is pressed down to enable the first rotating shaft 220 to drive the thumb wheel 230 to rotate, so that the protruding portion 231 is driven to abut against and push the sliding block 310 to move, and the sliding block 310 can drive the second rotating shaft to rotate when moving, so that the first rod 420 connected to the connecting seat 320 is driven to rotate, and the lock tongue 410 is driven to move, so that transmission between the pressing rod 240 and the first rod 420 can be realized, and the escape door lock device is simple in structure and convenient to operate.

Referring to fig. 2 to 5, according to some embodiments of the present utility model, a slider 310 is disposed on an inner wall of one side of an inner cavity adjacent to a first rotation shaft 220, the slider 310 is provided with a sliding portion 311 and a connection portion 312, the connection portion 312 is connected to one end of the sliding portion 311, the sliding portion 311 is provided with a first sliding groove 313, an extending direction of the first sliding groove 313 is perpendicular to an axial direction of the first rotation shaft 220, the inner wall of the inner cavity is provided with a first limiting protrusion 110, the first limiting protrusion 110 is inserted into the first sliding groove 313, one side of the connection portion 312 near a thumb wheel 230 is provided with an abutment block 314, a protrusion 231 is disposed on one side of the thumb wheel 230 far from the first rotation shaft 220, the protrusion 231 is disposed between the sliding portion 311 and the abutment block 314, and opposite sides of the protrusion 231 can respectively abut against the sliding portion 311 and the abutment block 314. Specifically, when the first rotating shaft 220 drives the thumb wheel 230 to rotate, the protrusion 231 can be driven to push the sliding portion 311 or the abutment block 314, so that the sliding block 310 moves along the first sliding slot 313 through the first limiting protrusion 110.

Referring to fig. 2 to 4, according to some embodiments of the present utility model, the transmission mechanism further includes a rocking handle 330, one end of the rocking handle 330 is fixedly connected with the second rotating shaft, the other end of the rocking handle 330 is connected with the sliding block 310, the rocking handle 330 is perpendicular to the second rotating shaft, and the sliding block 310 can drive the rocking handle 330 to rotate when moving. Specifically, the pressing rod 240 is pressed to enable the first rotating shaft 220 to drive the thumb wheel 230 to rotate, so that the protruding portion 231 is driven to abut against and push the sliding block 310 to move, the sliding block 310 can drive the rocking handle 330 to rotate by taking the second rotating shaft as the axis when in horizontal movement, so that the second rotating shaft rotates, and then the first bar 420 arranged on the connecting seat 320 rotates, and further the lock tongue 410 is driven to move, so that the structure is simple, and the operation is convenient.

Referring to fig. 2 to 6, according to some embodiments of the present utility model, a connection rod 331 is provided at an end of the rocking handle 330, the connection rod 331 is disposed at a side of the rocking handle 330 near the slider 310, the connection rod 331 is perpendicular to the rocking handle 330, a first slot 315 is provided at an outer wall of the connection portion 312, and the connection rod 331 is inserted into the first slot 315, so that the rocking handle 330 can be driven to rotate when the slider 310 moves horizontally.

Further, in some embodiments, a latch may be disposed on a side of the connecting portion 312 near the rocking handle 330, and a slot is correspondingly disposed on the rocking handle 330, or other structures capable of implementing transmission between the slider 310 and the rocking handle 330 may be determined according to actual situations, which will not be described herein.

Further, the rotation stroke of the first square bar 420 is different according to the different transmission structures in the mortise lock 400, so the horizontal movement stroke of the slider 310, i.e. the size of the first chute 313, and the rotation stroke of the rocking handle 330, i.e. the size of the rocking handle 330, can be determined according to practical situations, and are not limited herein.

Referring to fig. 2 to 5, in some embodiments, it is preferable that the slider 310 is provided with two sliding portions 311, and the two sliding portions 311 are respectively connected to opposite sides of the connection portion 312, so that the slider 310 is more stable during movement and does not shake left and right. The end of the first limiting protrusion 110 is provided with a first fixing hole 111, the first fixing hole 111 is perpendicular to the extending direction of the first sliding groove 313, a bolt is provided in the first fixing hole 111, and the nut thereof can limit the sliding block 310 by tightening the bolt.

Referring to fig. 4 and 7, according to some embodiments of the present utility model, the dial wheel 230 is provided with a central hole 232, one end of the first rotation shaft 220 is inserted into the central hole 232, the inner wall of the central hole 232 is provided with a first groove 233, the first groove 233 penetrates through both ends of the dial wheel 230, the outer circumferential wall of the first rotation shaft 220 is provided with a boss 221, and the boss 221 is inserted into the first groove 233, so that the dial wheel 230 can be driven to rotate by the boss 221 when the first rotation shaft 220 rotates, and meanwhile, the first rotation shaft 220 and the dial wheel 230 can be conveniently disassembled and assembled by means of insertion.

Further, referring to fig. 3 and 4, in some embodiments, the inner wall of the inner cavity is provided with a shaft sleeve 120, the axial direction of the shaft sleeve 120 is the same as the axial direction of the first rotating shaft 220, the first rotating shaft 220 is penetrated through the shaft sleeve 120, one end outer wall of the first rotating shaft 220 is circumferentially provided with a second limiting protrusion 222, a thumb wheel 230 is arranged between the shaft sleeve 120 and the second limiting protrusion 222, one side of the thumb wheel 230 abuts against the shaft sleeve 120, the other side of the thumb wheel 230 abuts against the second limiting protrusion 222, and by clamping the thumb wheel 230 between the shaft sleeve 120 and the second limiting protrusion 222, the thumb wheel 230 cannot shake left and right, and the structure is more compact.

Further, referring to fig. 7, in some embodiments, the first groove 233 is provided as a first scalloped groove within which the boss 221 is capable of sliding. Specifically, according to different usage places, the escape door lock needs to be installed on the left side or the right side of the door panel 700, and a section of idle stroke is formed between the first rotating shaft 220 and the thumb wheel 230 through sliding fit between the boss 221 and the first fan-shaped chute, and because the first rotating shaft 220 is tightly attached to one end side wall of the first fan-shaped chute through the boss 221 to drive the thumb wheel 230 to rotate, when the lock cylinder 600 is converted left and right, only the first rotating shaft 220 needs to rotate through the idle stroke, so that the boss 221 is tightly attached to the other end side wall of the first fan-shaped chute, the purpose of pressing the pressing rod 240 to open the door lock can be achieved, and therefore the escape door lock device provided by the embodiment of the utility model can be suitable for left-door locks and right-door locks and has universality.

Referring to fig. 7 and 8, according to some embodiments of the present utility model, one end of the handle 210 is fixedly connected with the compression bar 240, the other end of the handle 210 is provided with the rotation part 211, one side of the rotation part 211 close to the housing 100 is provided with the first connection hole 212, the end of the first rotation shaft 220 is correspondingly provided with the second square rod 223, the second square rod 223 is inserted into the first connection hole 212, the outer wall of the rotation part 211 is provided with the second fixing hole 213 communicated with the first connection hole 212, the second fixing hole 213 is perpendicular to the first connection hole 212, the second fixing hole 213 is provided with a bolt to fix the second square rod 223, and the bolt is loosened during disassembly, so that the structure is simple and the disassembly is convenient.

Referring to fig. 7 and 8, according to some embodiments of the present utility model, a second fan-shaped chute 214 is disposed on a side of the rotating portion 211 near the housing 100, and a third limit protrusion 130 is disposed on an outer wall of the housing 100, wherein the third limit protrusion 130 can slide in the second fan-shaped chute 214, so that a rotation angle of the rotating portion 211 can be limited, and damage to an internal structure of the housing 100 due to excessive rotation is avoided. Further, the size of the second fan-shaped chute 214 may be determined according to practical situations, and is not specifically limited herein.

In the embodiment of the present utility model, the connecting member may be a clip or a plate with other shapes, and the connecting manner may be a fastening manner, a screw fixing manner, or a welding manner, which will not be described herein.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. An escape door lock device, characterized by comprising:

the shell is connected with the door plate and is provided with an inner cavity;

the toggle mechanism comprises a handle, a toggle wheel and a pressure rod, wherein one end of the handle is rotatably connected with the shell and is provided with a first rotating shaft, the first rotating shaft stretches into the inner cavity and is connected with the toggle wheel, the outer wall of the toggle wheel is provided with a protruding part, the other end of the handle is connected with the pressure rod, and the pressure rod is parallel to the first rotating shaft;

The transmission mechanism is arranged in the inner cavity and comprises a sliding block and a connecting seat, the sliding block is connected to the inner wall of the inner cavity in a sliding mode, the sliding direction of the sliding block is perpendicular to the axial direction of the first rotating shaft, when the dial wheel rotates, the protruding part can abut against and push the sliding block, one end of the connecting seat is rotatably connected to the shell and is provided with a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, the second rotating shaft is connected with the sliding block, and when the sliding block moves, the second rotating shaft can be driven to rotate;

The lock pin is arranged inside the door plate, the lock pin is provided with a lock tongue and a first square rod, one end of the first square rod is rotatably connected with the lock pin, the other end of the first square rod is connected with the connecting seat, and the lock tongue can be driven to move when the first square rod rotates.

2. The escape door lock device according to claim 1, wherein the slider is disposed on an inner wall of one side of the inner cavity adjacent to the first rotating shaft, the slider is provided with a sliding portion and a connecting portion, the connecting portion is connected to one end of the sliding portion, the sliding portion is provided with a first sliding groove, an extending direction of the first sliding groove is perpendicular to an axial direction of the first rotating shaft, a first limiting protrusion is disposed on the inner wall of the inner cavity, the first limiting protrusion is inserted into the first sliding groove, an abutting block is disposed on one side of the connecting portion close to the thumb wheel, the protruding portion is disposed on one side of the thumb wheel away from the first rotating shaft, the protruding portion is disposed between the sliding portion and the abutting block, and two opposite sides of the protruding portion can abut against the sliding portion and the abutting block respectively.

3. The escape door lock device according to claim 2, wherein the transmission mechanism further comprises a rocking handle, one end of the rocking handle is fixedly connected with the second rotating shaft, the other end of the rocking handle is connected with the sliding block, the rocking handle is perpendicular to the second rotating shaft, and the rocking handle can be driven to rotate when the sliding block moves.

4. The escape door lock device according to claim 3, wherein a connecting rod is provided at an end of the rocking handle, the connecting rod is disposed at a side of the rocking handle near the slider, the connecting rod is perpendicular to the rocking handle, a first slot is provided at an outer wall of the connecting portion, and the connecting rod is inserted into the first slot.

5. The escape door lock device according to claim 2, wherein the slider is provided with two sliding portions, the two sliding portions are respectively connected to opposite sides of the connecting portion, a first fixing hole is formed in an end portion of the first limit protrusion, the first fixing hole is perpendicular to an extending direction of the first sliding groove, and a bolt is arranged in the first fixing hole.

6. The escape door lock device according to claim 1, wherein the thumb wheel is provided with a central hole, one end of the first rotating shaft is inserted into the central hole, the inner wall of the central hole is provided with a first groove, the first groove penetrates through two ends of the thumb wheel, the outer peripheral wall of the first rotating shaft is provided with a boss, and the boss is inserted into the first groove.

7. The escape door lock device according to claim 6, wherein a shaft sleeve is arranged on an inner wall of the inner cavity, an axial direction of the shaft sleeve is identical to an axial direction of the first rotating shaft, the first rotating shaft penetrates through the shaft sleeve, a second limiting protrusion is circumferentially arranged on an outer wall of one end of the first rotating shaft, the poking wheel is arranged between the shaft sleeve and the second limiting protrusion, one side of the poking wheel abuts against the shaft sleeve, and the other side of the poking wheel abuts against the second limiting protrusion.

8. The escape door lock apparatus according to claim 6, wherein the first groove is provided as a first fan-shaped chute, and the boss is slidable in the first fan-shaped chute.

9. The escape door lock device according to claim 1, wherein one end of the handle is fixedly connected with the pressing rod, the other end of the handle is provided with a rotating part, one side, close to the shell, of the rotating part is provided with a first connecting hole, the end part of the first rotating shaft is correspondingly provided with a second square rod, the second square rod is inserted into the first connecting hole, the outer wall of the rotating part is provided with a second fixing hole communicated with the first connecting hole, the second fixing hole is perpendicular to the first connecting hole, and a bolt is arranged in the second fixing hole to fix the second square rod.

10. The escape door lock device according to claim 9, wherein a second fan-shaped chute is arranged on one side, close to the shell, of the rotating portion, a third limit protrusion is correspondingly arranged on the outer wall of the shell, and the third limit protrusion can slide in the second fan-shaped chute.