Fingerprint lock with retractable handle

Abstract

The present application discloses a fingerprint lock with a retractable handle, a cabinet door panel, a retractable slot, a fingerprint input port, a handle, a lock bolt, and a mounting frame, and also includes an unlocking linkage device, which is used to link the handle with the lock bolt; a retractable actuator device, which is used to control the handle to extend / retract into the retractable slot; a shielding device, which includes a deformable shielding plate driven by a displacement actuator mechanism and capable of shielding and blocking the retractable slot. By adopting the above technical scheme, in daily use, the shielding device and the retractable actuator device cooperate with the fingerprint input port. When correct fingerprint information is input into the fingerprint input port, the displacement actuator mechanism is actuated to move the deformable shielding plate to open the retractable slot, and then the retractable actuator device is actuated to extend the handle out of the retractable slot. After the operator completes the unlocking action, the retractable actuator device and the displacement actuator mechanism are actuated successively, the handle is retracted into the retractable slot, and the deformable shielding plate blocks the retractable slot. At this time, the outer surface of the deformable shielding plate is flush with the surface of the cabinet door panel.

Description

Technical Field

[0001] The invention relates to a fingerprint lock with a retractable handle. Background Art

[0002] The safety index of a safe is mainly determined by the lock function of the safe. After the changes of the times and the changes of technology, the lock function has been continuously upgraded with the development of the times. From the initial mechanical lock safe to the later password safe, and then to the current fingerprint safe, its function is gradually becoming stronger. Fingerprint safe is a high-tech safe that combines fingerprint recognition technology and safes. It uses human fingerprints as passwords and has the characteristics of convenience, stability, and uniqueness. For example:

[0003] The Chinese invention patent with publication number CN112664066B discloses a fingerprint lock with a handle telescopic function, which includes a housing, a first fingerprint input port, a second fingerprint input port, a handle, a telescopic slot, a baffle, a deep slot, a driving component, a rotating component, and a telescopic component. When unlocking is required, the driving component is activated through the first fingerprint input port to drive the rotating component and the telescopic component to operate, open the telescopic slot, withdraw the baffle from the telescopic slot, and extend the handle out of the telescopic slot. However, the defects are as follows:

[0004] 1. The components are scattered, resulting in a large and uncompact shell that cannot be installed in a small space.

[0005] 2. The outer surface of the baffle is not flush with the outer surface of the shell, which is not beautiful. There is a gap between the baffle and the inner end of the expansion slot, which allows criminals to take advantage of it.

[0006] 3. There is no supporting structure on the inside of the baffle, so it is weak and cannot withstand large external impacts and is easily damaged. Summary of the invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art.

[0008] The present application provides a fingerprint lock with a retractable handle, a cabinet door panel, a retractable slot, a fingerprint input port, a handle, a lock bolt, a mounting frame, and further includes:

[0009] An unlocking linkage device, which is used to link the handle with the lock bolt;

[0010] A telescopic actuator, used to control the handle to extend / retract into the telescopic slot;

[0011] The shielding device comprises a deformable shielding plate which is driven by a displacement actuating mechanism and can shield and block the telescopic slot.

[0012] The unlock linkage consists of:

[0013] The rotating sleeve has an unlocking arc rack fixedly mounted on its outer wall;

[0014] An unlocking spur rack meshes with the unlocking arc rack and is fixedly connected to the lock bolt;

[0015] The linkage part is used to enable the inner end of the handle to slide along the axis and rotate in the circumferential direction in the rotating sleeve.

[0016] Also included is a self-locking shaft rod, which can be telescopically slidably inserted into the mounting frame;

[0017] The limiting plate is fixedly mounted on the outer wall of the rotating sleeve. When the handle is retracted, the self-locking shaft rod cooperates with the limiting plate to prevent the rotating sleeve from rotating.

[0018] The telescopic actuator comprises:

[0019] Gear shaft 1, which is rotatably mounted in a mounting frame, with linkage gears mounted on both ends;

[0020] A plurality of annular grooves are arranged at intervals on the inner end of the handle and mesh with one of the linkage gears;

[0021] The telescopic actuating motor is connected to another linkage gear through a linkage member.

[0022] The linkage agencies include:

[0023] A lifting plate, which is movably mounted on the mounting frame and can slide up and down;

[0024] A limiting unit, used to limit the position of the lifting plate;

[0025] A lifting slot is provided on the lifting plate and is parallel thereto;

[0026] The double-sided rack can be lifted and slidably installed in the lifting slot, one side of which is meshed with the linkage gear, and the other side is matched with the telescopic actuating motor through the driving gear.

[0027] The limit unit includes:

[0028] A movement limiting groove is arranged on one side of the lifting plate;

[0029] A limiting fixed groove, which is arranged on the mounting frame and corresponds to the limiting movable groove;

[0030] A limiting floating plug block can be floatably inserted in the limiting fixed groove through a limiting floating spring, and an outer end can be inserted into the limiting movable groove;

[0031] A cable hole is arranged at the lower end of the lifting plate.

[0032] The handle includes:

[0033] The rod body is slidably inserted in the mounting frame, one end of which extends into the telescopic slot, and the other end of which extends into the inner cavity of the rotating sleeve and is fixedly connected to the floating plate;

[0034] A baffle plate is rotatably sleeved on the rod body and slidingly matched with the telescopic slot;

[0035] A handlebar, which is fixedly mounted on the outer end of the rod;

[0036] Among them, a plurality of annular grooves are all arranged on the peripheral wall of the rod body.

[0037] The handle also includes:

[0038] Two groups of damping grooves, both in arc-shaped sections, are symmetrically arranged on the outer surface of the baffle;

[0039] A pair of damping floating holes are arranged on the inner end surface of the handle, corresponding to each group of damping grooves;

[0040] A pair of damping floating blocks can be floated and installed in corresponding damping floating holes through corresponding damping floating springs, and one end can be inserted into the corresponding damping groove.

[0041] The shielding device also includes:

[0042] A communication cavity, which is arranged in the cabinet door panel and connected with the outer end of the telescopic slot;

[0043] A guide cavity, which is arranged on the top of the inner wall of the cabinet door plate and communicates with the top of the communication cavity;

[0044] An open cavity, which is arranged at the bottom of the inner side wall of the cabinet door panel and communicates with the lower end of the communication cavity;

[0045] Among them, the telescopic groove runs through the cabinet door panel from left to right, is located between the guide cavity and the open cavity, has a rectangular cross-section, and the deformable shielding plate can slide in the guide cavity, the connecting cavity and the open cavity.

[0046] The deformable shield includes:

[0047] A plurality of gear bars, each comprising a body, a plug-in slot and a connecting block;

[0048] A plurality of hinge shafts, used for hingedly connecting the insertion slots and connecting blocks of adjacent gear bars;

[0049] A through opening that passes through the upper 1 / 3 of each gear bar;

[0050] A plurality of mounting grooves are respectively arranged on the outer surface of each gear bar located at the middle 1 / 3;

[0051] A plurality of telescopic baffles can be slidably installed in corresponding installation slots;

[0052] Among them, the displacement actuating mechanism cooperates with each hinge shaft to drive each gear bar to slide in the guide cavity, the connecting cavity and the open cavity. The displacement actuating mechanism controls each telescopic baffle to extend into the outer end of the telescopic groove / retract into the installation groove through a pair of push linkage devices.

[0053] The beneficial effects of the present invention are as follows:

[0054] 1. Through the arrangement of telescopic slot, handle, locking bolt, mounting frame, rotating sleeve, unlocking spur rack, floating plate, several limiting slots, several limiting blocks, gear shaft 1, several ring grooves, telescopic actuating motor, lifting plate, limiting unit, lifting slot and double-sided rack, the handle can be telescopic and rotatable, with compact structure and high space utilization;

[0055] 2. Through the arrangement of the lifting plate, the cable hole, the movement limiting groove, the fixed limiting groove, the floating limiting plug block and the floating limiting spring, the cable hole is connected to an external cable, and the handle is extended and retracted by pulling the external cable, thereby avoiding the situation where the handle cannot be extended and retracted due to damage to the telescopic actuating motor;

[0056] 3. Through the arrangement of the rod body, baffle, handle, two groups of damping grooves, a pair of damping floating holes, a pair of damping floating blocks, and a pair of damping floating springs, the rotation of the handle has a damping sense and can stop after rotation, so that the lock bolt remains in an extended or retracted state, which is convenient for users to open and close the cabinet door;

[0057] 4. By setting up a displacement actuating mechanism, a connecting cavity, a guiding cavity, an open cavity, a plurality of baffles, a plurality of hinge shafts, a through-hole, a plurality of mounting grooves, a plurality of telescopic baffles and a pair of push-link devices, the telescopic groove can be shielded and completely blocked, and when each baffle is located in the connecting cavity, both the front and rear sides are supported, the structural strength is high, and it can withstand greater impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A three-dimensional diagram of a fingerprint lock with a retractable handle in an embodiment of the present application;

[0059] Figure 2 This is a schematic diagram of the internal structure of a fingerprint lock with a retractable handle in an embodiment of the present application;

[0060] Figure 3 A three-dimensional diagram of a fingerprint lock with a retractable handle in an embodiment of the present application;

[0061] Figure 4 It is a telescopic actuating device in the embodiment of the present application;

[0062] Figure 5 This is a schematic diagram of the three-dimensional structure of the deformable shielding plate in the embodiment of the present application;

[0063] Figure 6A three-dimensional diagram of the coordination structure of each gear bar of the middle 1 / 3 with a telescopic baffle in the embodiment of the present application;

[0064] Figure 7 This is a schematic diagram of the structure of the displacement actuating mechanism in the embodiment of the present application;

[0065] Figure 8 Schematic diagram of the structure of the floating pusher in the embodiment of the present application.

[0066] Reference numerals

[0067] 101-cabinet door plate, 102-telescopic slot, 103-fingerprint input port, 104-lock bolt, 105-mounting frame, 106-circuit board, 107-self-locking shaft rod, 108-limiting plate, 109-sleeve, 110-reset slot, 111-fixed rod, 112-unlock reset spring, 2-unlock linkage device, 201-rotating sleeve, 202-unlock arc rack, 203-unlock straight rack, 3-telescopic actuating device, 301-gear shaft 1, 302-linked gear, 303-ring groove, 304-telescopic actuating motor, 4-shielding device, 401-connecting cavity, 402-guide cavity, 403-open cavity, 5-displacement actuating mechanism, 501-transmission rack chain, 502-gear Axis 2, 503-promoting gear, 504-push actuator motor, 505-reel, 506-cable, 6-deformable shielding plate, 601-bar, 6011-body, 6012-plug slot, 6013-connecting block, 602-hinge shaft, 603-through port, 604-installation slot, 605-telescopic baffle, 7-linkage, 701-floating plate, 702-limiting slot, 703-limiting block, 8-limiting unit, 801-limiting movement slot, 8011-anti-slip fixing slot, 8012-unlocking slot, 8013-unlocking inclined plane 8013, 802-limiting fixing slot, 803-limiting floating plug, 805-cable hole, 9-handle, 901-rod body, 902-block Plate, 903-handle, 904-damping groove, 905-damping floating hole, 906-damping floating block, 907-damping floating spring, 10-pushing linkage device, 1001-pushing fixed block, 1002-transverse sliding groove, 1003-transverse push plate, 11-clutch unit, 1101-sunk groove, 1102-pressure groove, 1103-pressure slider, 1104-pressure spring, 12-floating push piece, 1201-pushing through hole, 1202-through hole, 1203-pushing slider, 1204-pushing rod, 1205-reset sliding groove, 1206-insertion rod, 1207-pushing reset spring, 1208-oblique groove, 1209-oblique insertion plate, 13-pushing unit, 1301- Connecting groove, 1302-connecting slider, 1303-transverse push block, 14-reset device, 1401-fixed plate, 1402-telescopic rod, 1403-gear ring, 1404-transverse reset spring, 15-linkage mechanism, 1501-lifting groove, 1502-double-sided rack, 1503-driving gear, 1504-upper vertical slide groove, 1505-upper sliding rod, 1506-lower vertical slide groove, 1507-lower sliding rod, 1508-gasket, 16-lifting plate, 1601-lifting main board, 1602-lifting installation groove, 1603-lifting sub-plate, 1604-limiting slide groove, 1605-limiting rod, 1606-limiting baffle, 1607-bump, 1608-raised part. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0069] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0070] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0071] Embodiment 1:

[0072] like Figure 1 to Figure 2 As shown, an embodiment of the present application provides a fingerprint lock with a retractable handle, a cabinet door panel 101, a telescopic slot 102, a fingerprint input port 103, a handle 9, a lock bolt 104, and a mounting frame 105, and also includes an unlocking linkage device 2, which is used to link the handle 9 with the lock bolt 104; a telescopic actuator 3, which is used to control the handle 9 to extend / retract into the telescopic slot 102; a shielding device 4, which includes a deformable shielding plate 6 driven by a displacement actuator mechanism 5 and can shield and block the telescopic slot 102.

[0073] Furthermore, the unlocking linkage device 2 includes a rotating sleeve 201, on the outer wall of which an unlocking arc rack 202 is fixedly installed; an unlocking spur rack 203, which is engaged with the unlocking arc rack 202 and fixedly connected to the lock bolt 104; and a linkage member 7, which is used to enable the inner end of the handle 9 to slide along the axis and rotate circumferentially in the rotating sleeve 201.

[0074] Furthermore, the linkage member 7 includes a floating plate 701, which is movably mounted in the rotating sleeve 201 and can slide axially along the inner cavity; a plurality of limiting grooves 702 are arranged in the inner cavity of the rotating sleeve 201 and are parallel to the axial direction of the inner cavity; a plurality of limiting blocks 703 are fixedly connected to the floating plate 701 and can slide in the corresponding limiting grooves 702, and the floating plate 701 is fixedly connected to the inner end of the handle 9.

[0075] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the fingerprint input port 103 is arranged on the outer surface of the cabinet door plate 101, the mounting frame 105 is fixedly connected to the inner surface of the cabinet door plate 101, and a circuit board 106 is arranged in the mounting frame 105. When the unlocking action is required, the user inputs a specified fingerprint into the fingerprint input port 103, and the circuit board 106 controls the displacement actuating mechanism 5 to act first, so that the deformable shielding plate 6 moves until the outer end of the telescopic slot 102 is opened, and the displacement actuating mechanism 5 stops, and then the circuit board 106 controls the telescopic actuating device 3 to act, so that the handle 9 moves to the outside of the telescopic slot 102. During the movement, the floating plate 701 slides in the rotating sleeve 201 toward the telescopic slot 102, and each limiting block 703 slides in the corresponding limiting slot 702 toward the telescopic slot 102 until the outer end of the handle 9 extends out of the telescopic slot 102, and the telescopic actuator 3 stops moving. The user can then rotate the handle 9, and the floating plate 701 and each limiting block 703 rotate with the handle 9, driving the rotating sleeve 201 to rotate through each limiting slot 702, and the unlocking arc rack 202 cooperates with the unlocking spur rack 203 to drive the lock bolt to retract, completing the unlocking action, and at this time the cabinet door panel 101 can be opened;

[0076] When it is necessary to lock the cabinet door panel 101, the user turns the handle 9, and through the cooperation of the floating plate 701, the limiting blocks 703, the limiting grooves 702, the rotating sleeve 201, the unlocking arc rack 202 and the unlocking straight rack 203, the lock bolt 104 is extended out of the mounting frame 105, so that the cabinet door panel 101 is fixed, and then the telescopic actuator mechanism is activated, and when the handle 9 moves into the telescopic groove 102, the telescopic actuator mechanism stops, and the displacement actuator mechanism 5 is activated. When the deformable shielding plate 6 blocks the outer end of the telescopic groove 102, the displacement actuator mechanism 5 stops, and the cabinet door is locked.

[0077] Embodiment 2:

[0078] like Figure 2 As shown, the embodiment of the present application provides a fingerprint lock with a retractable handle, and also includes a self-locking shaft 107, which can be retracted and slidably inserted into the mounting frame 105; a limit plate 108, which is fixedly mounted on the outer wall of the rotating sleeve 201. When the handle 9 is retracted, the self-locking shaft 107 cooperates with the limit plate 108 to prevent the rotating sleeve 201 from rotating.

[0079] It also includes a sleeve 109, which is sleeved on the outside of the self-locking shaft 107 and fixedly connected to the mounting frame 105; a reset groove 110, which passes through the middle of the self-locking shaft 107 on the left and right; a fixed rod 111, which can be slidably inserted in the reset groove 110, and both ends are fixedly connected to the inner wall of the sleeve 109; an unlocking reset spring 112, which is arranged between the end of the reset groove 110 away from the limit plate 108 and the outer wall of the fixed rod 111.

[0080] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the handle 9 is retracted into the telescopic slot 102, the self-locking shaft 107 is pushed to move in a direction away from the handle 9 until it is adjacent to one end surface of the limit plate 108. At this time, the reset slot 110 moves together with the self-locking shaft 107, while the position of the fixed rod 111 remains unchanged, and the unlocking reset spring 112 is compressed to store elastic potential energy. At this time, due to the relative position of the limit plate 108 and the self-locking shaft 107, the rotating sleeve 201 cannot rotate in the unlocking direction;

[0081] When the handle 9 extends out of the telescopic slot 102 , the unlocking return spring 112 releases its elastic potential energy, pushing the end of the self-locking shaft 107 away from the handle 9 away from the limit plate 108 , and the rotating sleeve 201 can rotate freely to achieve the unlocking action.

[0082] Embodiment 3:

[0083] like Figures 1 to 4 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the telescopic actuating device 3 includes a gear shaft 301, which is rotatably mounted in the mounting frame 105, and linkage gears 302 are installed at both ends; a plurality of annular grooves 303 are spaced apart at the inner end of the handle 9 and mesh with one of the linkage gears 302; and a telescopic actuating motor 304, which is transmission-connected to the other linkage gear 302 through a linkage member 15.

[0084] Furthermore, the linkage mechanism 15 includes a lifting plate 16, which is movably mounted on the mounting frame 105 and can slide up and down; a limit unit 8, used to limit the position of the lifting plate 16; a lifting slot 1501, which is opened on the lifting plate 16 and is parallel to it; a double-sided rack 1502, which can be lifted and slidably mounted in the lifting slot 1501, one side of which is meshed with the linkage gear 302, and the other side is transmitted and matched with the telescopic actuator motor 304 through the driving gear 1503.

[0085] Furthermore, the linkage mechanism 15 also includes an upper vertical slide groove 1504, which is arranged on the top of the lifting plate 16; an upper sliding rod 1505, one end of which is fixedly mounted on the mounting frame 105, and the other end can be slidably inserted in the upper vertical slide groove 1504; a lower vertical slide groove 1506, which is arranged on the mounting frame 105; a lower sliding rod 1507, one end of which is fixedly mounted on the lifting plate 16, and the other end can be slidably inserted in the lower vertical slide groove 1506; a gasket 1508, which is fixedly mounted on the end of the lower sliding rod 1507 away from the mounting frame 105 by bolts; a lifting spring, which is arranged between the lower end of the lower vertical slide groove 1506 and the lower sliding rod 1507, the cross-sectional diameter of the gasket 1508 is larger than the lower vertical slide groove 1506, and the upper vertical slide groove 1504 and the lower vertical slide groove 1506 are parallel.

[0086] Furthermore, the limiting unit 8 includes a limiting movement groove 801, which is arranged on one side of the lifting plate 16; a limiting fixed groove 802, which is arranged on the mounting frame 105 and corresponds to the limiting movement groove 801; a limiting floating plug block 803, which can be floatably inserted in the limiting fixed groove 802 through a limiting floating spring, and the outer end can be inserted into the limiting movement groove 801; and a rope hole 805, which is arranged at the lower end of the lifting plate 16.

[0087] Furthermore, the lifting plate 16 includes a lifting main plate 1601; a lifting installation groove 1602, which is arranged on the lower surface of the lifting main plate 1601; a lifting sub-plate 1603, which can be lifted and slidably installed in the lifting installation groove 1602; a pair of limiting slide grooves 1604, which are arranged on the lifting sub-plate 1603; a pair of limiting rods 1605, one end of which is fixedly installed in the lifting installation groove 1602, and the other end of which can be slidably inserted in the corresponding limiting slide groove 1604; and a limiting baffle 1606, which It is fixedly mounted on the lifting main board 1601, and the other end is abutted against the outer end of each limiting rod 1605; the protrusion 1607 is fixedly mounted on the top side of the baffle; the protrusion 1608 is arranged on the side of the limiting baffle 1606, corresponding to the protrusion 1607; the limiting return spring is arranged between the inner surface of the protrusion 1608 and the lifting installation groove 1602, the upper end is abutted against the protrusion 1607, and the lower end is abutted against the bottom of the lifting installation groove 1602, and the rope hole 805 is arranged at the lower end of the lifting sub-plate 1603.

[0088] Furthermore, the limiting movement groove 801 includes: an anti-slip fixing groove 8011, which is arranged on the side of the lifting main plate 1601 facing the limiting fixing groove 802 and intrudes into the lifting installation groove 1602; an unlocking groove 8012, which is arranged on the lifting sub-plate 1603, corresponding to the anti-slip fixing groove 8011, and the upper end surface is inclined toward the limiting fixing groove 802; an unlocking slope 8013, which is arranged at the outer end of the limiting floating plug 803, and is fitted with the upper end surface of the unlocking groove 8012, and the floating limiting plug 803 is away from the limiting floating spring end and can be inserted into the anti-slip fixing groove 8011 and the unlocking groove 8012 at the same time.

[0089] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the handle 9 needs to be extended out of the telescopic slot 102 / retracted into the telescopic slot 102, the telescopic actuating motor 304 is actuated, and the double-sided rack 1502 is driven to slide through the active gear 1503, thereby causing the gear shaft and a pair of linkage gears 302 to rotate, and one of the linkage gears 302 cooperates with each annular groove 303 to push the handle 9 outward / inward of the telescopic slot 102. At this time, the double-sided rack 1502 descends / ascends in the lifting slot 1501. In this process, the inclined end of the limiting floating plug 803 is inserted into the limiting movement slot 801 under the action of the limiting floating spring, and the lifting spring applies an upward thrust to the lifting plate 16, so that the position of the lifting plate 16 is in a fixed state;

[0090] The cable hole 805 is used to connect the external cable. When the telescopic actuator motor 304 is damaged, the user can use the external cable to pull the lifting sub-plate 1603, the unlocking slope 8013 and the protrusion 1607 down in the lifting installation groove 1602, and push the outer end of the limiting floating plug 803 out of the anti-offset fixing groove 8011 and the unlocking groove 8012. At this time, the limiting reset spring and the limiting floating spring are compressed and shortened, and the top of each limiting slide groove 1604 abuts against the outer wall of the corresponding limiting rod 1605, so that the lifting main plate 1601 can be lowered together with the lifting sub-plate 1603, driving the double The surface rack 1502 descends, causing the outer end of the handle 9 to extend out of the telescopic slot 102, and the lifting spring is compressed and shortened. When the user releases the external pull cable, the lifting spring and the limiting reset spring release elastic potential energy to push the lifting main plate 1601 and the lifting sub-plate 1603 to rise until the anti-slip fixing slot 8011 and the unlocking slot 8012 correspond to the limiting floating plug block 803. At this time, the limiting floating spring releases elastic potential energy to insert the outer end of the limiting floating plug block 803 into the anti-slip fixing slot 8011 and the unlocking slot 8012, fixing the position of the lifting main plate and the lifting sub-plate 1603 and resetting them.

[0091] Embodiment 4:

[0092] like Figures 1 to 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the handle 9 includes a rod body 901, which can be slidably inserted in the mounting frame 105, one end of which extends into the telescopic groove 102, and the other end extends into the inner cavity of the rotating sleeve 201 and is fixedly connected to the floating plate 701; a baffle 902, whose rotatable sleeve 201 is arranged on the rod body 901 and slidably cooperates with the telescopic groove 102; a handle head 903, which is fixedly mounted on the outer end of the rod body 901, and a plurality of annular grooves 303 are all arranged on the peripheral wall of the rod body 901.

[0093] Furthermore, the handle 9 also includes two groups of damping grooves 904, which are arc-shaped and symmetrically arranged on the outer surface of the baffle 902; a pair of damping floating holes 905 are arranged on the inner end surface of the handle head 903, corresponding to each group of damping grooves 904; a pair of damping floating blocks 906 can be floatably installed in the corresponding damping floating holes 905 through corresponding damping floating springs 907, and one end can be inserted into the corresponding damping groove 904.

[0094] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the rod body 901, in cooperation with a plurality of annular grooves 303 and corresponding linkage gears 302, slides together with the baffle plate 902 and the handle head 903 toward the outside of the telescopic groove 102, and when the handle head 903 extends out of the telescopic groove 102, the outer surface of the baffle plate 902 is flush with the outer surface of the cabinet door panel 101, and the shape of the baffle plate 902 is adapted to the inner wall of the telescopic groove 102, and the cross-sectional diameter of the handle head 903 is smaller than the inner wall of the telescopic groove 102. Therefore, the baffle plate 902 can only slide along the axis of the telescopic groove 102, while the handle head 903 can be telescopic with the rod body 901 around. The axis of the groove 102 rotates, and the handle 903 is rotated at this time. The rod body 901, a pair of damping floating holes 905, the corresponding damping floating blocks 906, the damping floating spring 907, the floating plate 701 and a plurality of limiting sliders all rotate together with the handle 903. At the same time, each damping floating hole 905 and each damping floating block 906 moves on the corresponding groups of damping grooves 904. Under the action of the damping floating spring 907, one end of the corresponding damping floating block 906 moves in and out of the corresponding damping groove 904, generating a damping force, so that the rotation of the handle 9 has a feel and can maintain the angle after the rotation.

[0095] Embodiment 5:

[0096] like Figure 1 , Figure 2 and Figure 5 As shown, in the present embodiment, in addition to the structural features of the aforementioned embodiments, the shielding device 4 also includes a connecting cavity 401, which is arranged in the cabinet door panel 101 and is connected to the outer end of the telescopic groove 102; a guide cavity 402, which is arranged at the top of the inner wall of the cabinet door panel 101 and is connected to the top of the connecting cavity 401; an open cavity 403, which is arranged at the bottom of the inner wall of the cabinet door panel 101 and is connected to the lower end of the connecting cavity 401; wherein the telescopic groove 102 passes through the cabinet door panel 101 from left to right, is located between the guide cavity 402 and the open cavity 403, and has a rectangular cross-section, and the deformable shielding plate 6 can slide in the guide cavity 402, the connecting cavity 401 and the open cavity 403.

[0097] Furthermore, the deformable shielding plate 6 includes a plurality of gear bars 601, each including a main body 6011, a plug-in slot 6012 and a connecting block 6013; a plurality of hinge shafts 602, used for hingedly connecting the plug-in slots 6012 and the connecting blocks 6013 of adjacent gear bars 601; a through hole 603, which passes through the upper 1 / 3 of each gear bar 601; a plurality of mounting grooves 604, respectively arranged on the outer surface of each gear bar 601 located in the middle 1 / 3; a plurality of telescopic baffles 605, which can be slidably installed in the corresponding mounting grooves 604, and the displacement actuator mechanism 5 cooperates with each hinge shaft 602 to drive each gear bar 601 to slide in the guide cavity 402, the connecting cavity 401 and the open cavity 403, and the displacement actuator mechanism 5 controls each telescopic baffle 605 to extend into the outer end of the telescopic groove 102 / retract into the mounting groove 604 through a pair of push-link devices 10.

[0098] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when it is necessary to extend the handle 9 out of the telescopic slot 102, the displacement actuating mechanism 5 is actuated to drive each gear bar 601 to move into the open cavity 403, until each gear bar 601 with the through-hole 603 moves into the connecting cavity 401, at which time the through-hole 603 is connected to the inner wall of the telescopic slot 102, and the baffle 902 and the handle head 903 can pass through the through-hole 603 and extend out of the telescopic slot 102;

[0099] When the baffle 902 and the handle 903 are retracted into the telescopic groove 102, the displacement actuator 5 is activated to push the baffles 601 located in the upper 1 / 3 to move into the guide cavity 402 until the baffles 601 located in the middle 1 / 3 move into the connecting cavity 401. At this time, the displacement actuator 5 cooperates with the push-link devices 10 to drive the telescopic baffles 605 to extend from the corresponding mounting grooves 604 into the outer ends of the telescopic grooves 102 until the outer surfaces of the telescopic baffles 605 are flush with the outer surfaces of the cabinet door panels 101. At this time, the front and rear side walls of the baffles 902 located in the connecting cavity 401 are also supported by the connecting grooves.

[0100] Embodiment 6:

[0101] like Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the displacement actuating mechanism 5 includes a pair of transmission rack chains 501, which are respectively arranged at the two ends of each gear bar 601 and connected to the corresponding end of the hinge shaft 602; a gear shaft 502, which is rotatably installed in the open cavity 403; a pair of pushing gears 503, which are installed on the gear shaft 502 through the corresponding clutch unit 11 and are transmission-connected to the corresponding transmission rack chain 501; a push-actuating motor 504, whose output end is fixedly connected to the gear shaft 502 through a coupling; a pair of winding wheels 505, which are installed on the gear shaft 502 through the corresponding clutch unit 11; a pair of cables 506, one end of which is fixedly connected to the outer peripheral wall of the corresponding winding wheel 505, and the other end is connected to the corresponding push linkage device 10, and the clutch unit 11 disconnects the power transmission between it and the gear shaft 502 when the corresponding pushing gear 503 / winding wheel 505 is blocked.

[0102] Furthermore, the transmission rack chain 501 includes a plurality of rack segments, which are connected in series end to end through the ends of adjacent hinge shafts 602 .

[0103] Furthermore, the clutch unit 11 includes a plurality of grooves 1101, which are arranged at intervals on the peripheral wall of the gear shaft 502; a plurality of pressure grooves 1102, which are arranged at intervals on the inner peripheral wall of the pushing gear 503 / reel 505; and a plurality of pressure sliders 1103, which are floatingly installed in the corresponding pressure grooves 1102 through corresponding pressure springs 1104, and the outer ends can be inserted into the corresponding grooves 1101.

[0104] When the through-hole 603 is moved to the position corresponding to the telescopic slot 102, the gear shaft 502 rotates, driving the pair of pushing gears 503 and the pair of winding wheels 505 to rotate synchronously. Each pushing gear 503 rotates synchronously with the gear shaft 502 through the corresponding clutch unit 11. At this time, each telescopic baffle 605 is still inserted in the telescopic slot 102. At this time, each gear bar 601 and the corresponding transmission rack chain 501 cannot move, and the pair of pushing gears 503 are blocked. The corresponding pressure slide block 1103 will be disengaged from the corresponding groove 1101, and each cable 506 is released from the winding wheel 505. The pushing linkage device 10 is actuated to make each telescopic baffle 605 disengage from the telescopic slot 102 and enter the installation slot 604. At this time, each baffle 902 and the corresponding transmission rack chain 501 can move and The block 1103 cooperates with the corresponding groove 1101 under the action of the corresponding pressure spring 1104, so that a pair of pushing gears 503 can rotate with the gear shaft 2 502, and drive each gear bar 601 to move through the corresponding transmission rack chain 501 until the through-hole 603 corresponds to the telescopic slot 102, and when each gear bar 601 with the telescopic baffle 605 is separated from the connecting slot, the cable 506 will be wound onto the winding wheel 505 as the winding wheel 505 continues to rotate, and the pushing linkage device 10 is controlled to move. At this time, each telescopic baffle 605 is misaligned with the telescopic slot 102, so each telescopic baffle 605 cannot extend out of the installation slot 604, which causes the winding wheel 505 to be blocked, and the gear shaft 2 502 continues to rotate. Under the action of the torsional force, the pressure slider 1103 corresponding to each winding wheel 505 is separated from the corresponding groove 1101, disconnecting the power transmission between the gear shaft 2 502 and each winding wheel 505;

[0105] When the telescopic slot 102 needs to be blocked, the push-actuating motor 504 is activated to drive the gear shafts 502, the pair of push gears 503 and the pair of wire reels 505 to reverse, and the pair of push gears 503 cooperate with the corresponding transmission rack chain 501 to push each gear bar 601 to slide toward the guide cavity 402 until the gear bar 601 with the telescopic baffle 605, which is located at the middle 1 / 3, moves to correspond to the telescopic slot 102. At this time, each gear bar 601 and the corresponding transmission rack chain 501 and the pair of push gears 503 can no longer move, and the gear shaft 502 is 502 continues to rotate, so that each pressure slider 1103 corresponding to each push gear 503 is squeezed out of the corresponding groove 1101, and at the same time drives each winding wheel 505 to continue to rotate. In this process, each cable 506 is first released from each winding wheel 505, so that the corresponding push linkage device 10 is reset. After each push gear 503 is blocked, the cable 506 is wound back on the winding wheel 505, and drives each push linkage device 10 to move, so that each telescopic baffle 605 extends out of the corresponding installation groove 604, so that the outer end of the telescopic groove 102 is blocked;

[0106] The upper end or the lower end of each rack segment is fixedly connected to the corresponding end of the hinge shaft 602, and the other end is rotatably matched with the end of the corresponding rotating shaft, so that the transmission rack chain 501 composed of each rack segment can adapt to the shape of the guide cavity 402 and the open cavity 403.

[0107] Embodiment 7:

[0108] like Figure 2 and Figure 7 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the push linkage device 10 includes a plurality of pairs of floating push members 12, which can be slidably installed at the two ends of each installation groove 604, one end can be slidably inserted into the end of the main body 6011 and the corresponding transmission rack chain 501 and extend outward, and the other end is inclined toward the telescopic baffle 605; a plurality of push fixing blocks 1001 are fixedly installed on the inner wall of each telescopic baffle 605, and the two ends are inclined to fit with the inclined ends of the corresponding floating push members 12; a pair of transverse sliding grooves 1002 are symmetrically arranged at the two ends of the connecting cavity 401; a pair of transverse push plates 1003 can be transversely slidably installed in the corresponding transverse sliding grooves 1002; a pair of push units 13 are connected to the ends of the corresponding cables 506 away from the winding wheel 505, and are used to drive the corresponding transverse push plates 1003 to slide in the corresponding transverse sliding grooves 1002.

[0109] Furthermore, the pushing unit 13 includes a connecting groove 1301, which passes through the lower part of the transverse push plate 1003 on the left and right; a connecting slider 1302, which can be slidably installed in the connecting groove 1301, and the lower end is fixedly connected to the end of the cable 506 away from the reel 505; a transverse push block 1303, which can be slidably installed up and down in the transverse slide groove 1002; a reset device 14, which is used to apply a pulling force to the transverse push block 1303 away from the transmission rack chain 501, and the lower ends of the adjacent sides of the transverse push block 1303 and the transverse push plate 1003 are both inclined in the direction away from the transmission rack chain 501 and are in close contact with each other for transmission.

[0110] Furthermore, the reset device 14 includes a fixed plate 1401, which is vertically fixed in the middle of the horizontal slide groove 1002; a pair of telescopic rods 1402, which can be slidably inserted in the upper and lower parts of the fixed plate 1401, one end of which is fixedly connected to the transverse push plate 1003, and the other end is fixed with a stop ring 1403; a pair of transverse reset springs 1404, which are respectively sleeved on the outside of each telescopic rod 1402, and the two ends are respectively abutted against the stop ring 1403 and the fixed plate 1401.

[0111] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when it is necessary to extend the outer end of the telescopic baffle 605 out of the mounting slot 604, under the action of the corresponding wire reel 505, the lateral push block 1303 is pulled toward the bottom of the lateral slide slot 1002 through the cable 506, and the lateral push plate 1003 corresponding to the lateral push block 1303 moves toward the floating push member 12 in the corresponding connecting slot 1301, driving the floating push member 12 to move toward the corresponding push fixed block 1001, and cooperating with the corresponding The corresponding push fixing block 1001 pushes the corresponding telescopic baffle 605 out of the installation groove 604. During this process, the connecting slider 1302 slides downward in the corresponding connecting groove 1301, and a pair of telescopic rods 1402 and the corresponding retaining ring 1403 move together with the transverse push plate 1003, so that each transverse reset spring 1404 is compressed and shortened, and elastic potential energy is stored. When the outer surface of the telescopic baffle 605 is flush with the outer surface of the cabinet door plate 101, the push actuating motor 504 stops moving;

[0112] When this process is performed when each telescopic baffle 605 does not correspond to the telescopic slot 102, the moving transverse push plate 1003 abuts against the corresponding end of the hinge shaft 602, and the transverse push plate 1003 cannot continue to slide out of the transverse sliding slot 1002, and the transverse push block 1303 cannot continue to descend in the transverse sliding slot 1002, and the cable 506 cannot continue to move, even if the gear shaft 502 continues to rotate, each wire reel 505 disconnects the power transmission with the gear shaft 502 under the action of the corresponding clutch unit 11;

[0113] When it is necessary to retract each telescopic baffle 605 into the corresponding installation groove 604, the wire reel 505 is reversed, so that the cable 506 is released, and the downward pulling force on the connecting slider 1302 is released. Each transverse reset spring 1404 releases elastic potential energy, driving each gear ring 1403, each telescopic rod 1402 and the corresponding transverse push plate 1003 to move toward the direction of the fixed plate 1401, pushing the corresponding transverse push block 1303 to rise in the transverse slide groove 1002, and each floating push member 12 is also reset at the same time until each transverse push plate 1003 retracts into the corresponding transverse slide groove 1002 and loses contact with the corresponding floating push member 12.

[0114] Embodiment 8:

[0115] like Figure 8 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the floating push member 12 includes a push through hole 1201, which is arranged at one end of the mounting groove 604; a through hole 1202, which penetrates the rack segment and is coaxial with the push through hole 1201; a push slider 1203, which is slidably installed in the mounting groove 604, and the end surface away from the push through hole 1201 is inclined toward the telescopic baffle 605; a push rod 1204, which is slidably inserted in the push through hole 1201 and through hole 1202, one end of which is fixedly connected to the push slider 1203, and the other end extends out of the rack section; a reset slide groove 1205, which passes through the middle of the push rod 1204 from top to bottom; an insertion rod 1206, which is inserted into the inner end of the reset slide groove 1205, and both ends are inserted into the inner wall of the push through hole 1201; a push reset spring 1207, which is arranged in the reset slide groove 1205, and both ends are respectively abutted against the insertion rod 1206 and the reset slide groove 1205 away from the push slider 1203.

[0116] Furthermore, the floating push member 12 also includes an inclined groove 1208, which is arranged on the top surface of the push slider 1203 and is parallel to its inclined end surface; an inclined insert plate 1209, one end of which can be slidably inserted in the inclined groove 1208, and the other end is fixedly connected to the inner wall of the telescopic baffle 605.

[0117] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when each telescopic baffle 605 corresponds to the telescopic slot 102, the transverse push plate 1003 moving toward the corresponding gear bar 601 is restricted to contact with the outer end of each push rod 1204, and pushes each push rod 1204 and the corresponding push slider 1203 to slide in the direction away from the rack segment, and the inclined end of the push slider 1203 pushes the push fixing block 1001 and the corresponding telescopic baffle 605 to move in the direction away from the mounting slot 604. During this process, the reset slide slot 1205 moves with the push slider 1203 and the push rod 1204, and the position of the insertion rod 1206 is fixed. Therefore, the push reset spring 1207 is compressed. At the same time, the inclined insert plate 1209 also moves with the telescopic baffle 605, and the lower end of the inclined insert plate 1209 extends out of the mounting slot 604 along with the telescopic baffle 605. Gradually disengage from the bottom of the inclined slot 1208 until the outer surface of each telescopic baffle 605 is flush with the outer surface of the cabinet door plate 101, at this time, the outer end of the telescopic slot 102 is blocked, and a part of each inclined plug plate 1209 is still inserted in the inclined slot 1208, and the corresponding pair of inclined plug plates 1209 cooperates with the corresponding inclined slot 1208. At this time, each telescopic baffle 605 will not fall off. If it is necessary to remove each telescopic baffle 605, the push actuator motor 504 continues to rotate, and the transverse push plate 1003 continues to slide out of the transverse slide slot 1002, pushing the corresponding push slider 1203 and the transverse push plate 1003 to continue to slide in the direction away from the rack segment until each inclined plug plate 1209 is completely disengaged from the corresponding inclined slot 1208. At this time, each telescopic baffle 605 loses its fixation and will fall out of the corresponding mounting slot 604, making it convenient for workers to remove the damaged telescopic baffle 605;

[0118] When it is necessary to retract each telescopic baffle 605 into the installation slot 604, the push-actuating motor 504 is activated, so that the gear shaft 2 502 and the corresponding winding wheel 505 are reversed, the cable 506 is released from the winding wheel 505, and the downward pulling force on the connecting slider 1302 is released. Each transverse reset spring 1404 releases elastic potential energy, driving each gear ring 1403, each telescopic rod 1402 and the corresponding transverse push plate 1003 to move in the direction of the fixed plate 1401, and each push reset spring 1207 is released. The elastic potential energy pushes the corresponding reset slide groove 1205, the push rod 1204 and the push slider 1203 to move in the direction of the transverse push plate 1003, and each inclined plug plate 1209 descends in the corresponding inclined groove 1208, so that each telescopic baffle 605 retracts into the installation groove 604. When installing the telescopic baffle 605, it is only necessary to align the pair of inclined plug plates 1209 on the inner side of the new telescopic baffle 605 with the corresponding pair of inclined grooves 1208 on the push slider 1203 before the aforementioned action.

[0119] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0120] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fingerprint lock with a retractable handle, comprising a cabinet door panel (101), a retractable slot (102), a fingerprint input port (103), a handle (9), a lock bolt (104), and a mounting frame (105), characterized in that: Also includes: An unlocking linkage device (2) for enabling the handle (9) to be linked with the lock bolt (104); A telescopic actuating device (3) for controlling the handle (9) to extend out of / retract into the telescopic slot (102); A shielding device (4), comprising a deformable shielding plate (6) driven by a displacement actuating mechanism (5) and capable of shielding and blocking the telescopic slot (102); The unlocking linkage device (2) comprises: A rotating sleeve (201) has an unlocking arc rack (202) fixedly mounted on its outer wall; An unlocking spur rack (203) meshed with the unlocking arc rack (202) and fixedly connected to the lock bolt (104); A linkage member (7) used to enable the inner end of the handle (9) to slide along the axis and rotate in the circumferential direction in the rotating sleeve (201); Also includes: A self-locking shaft (107) which is telescopically slidable and inserted into the mounting frame (105); A limiting plate (108) fixedly mounted on the outer wall of the rotating sleeve (201); When the handle (9) is retracted, the self-locking shaft (107) cooperates with the limiting plate (108) to prevent the rotating sleeve (201) from rotating; The telescopic actuating device (3) comprises: Gear shaft 1 (301), which is rotatably mounted in the mounting frame (105), with linkage gears (302) mounted on both ends; A plurality of annular grooves (303) are arranged at intervals on the inner end of the handle (9) and mesh with one of the linkage gears (302); A telescopic actuating motor (304) which is transmission-connected to another linkage gear (302) via a linkage mechanism (15); The handle (9) comprises: A rod body (901) is slidably inserted into the mounting frame (105), one end of which extends into the telescopic groove (102), and the other end of which extends into the inner cavity of the rotating sleeve (201) and is fixedly connected to the floating plate (701); A baffle (902), whose rotatable sleeve (201) is arranged on the rod body (901) and slidably cooperates with the telescopic slot (102); A handle (903) fixedly mounted on the outer end of the rod body (901); Wherein, the plurality of annular grooves (303) are all arranged on the peripheral wall of the rod body (901); The handle (9) further comprises: Two groups of damping grooves (904), both in arc-shaped sections, are symmetrically arranged on the outer surface of the baffle (902); A pair of damping floating holes (905) are arranged on the inner end surface of the handle (903) and correspond to each group of the damping grooves (904); A pair of damping floating blocks (906) are floatably mounted in corresponding damping floating holes (905) via corresponding damping floating springs (907), and one end of the damping floating blocks can be inserted into the corresponding damping groove (904).

2. A fingerprint lock with a retractable handle according to claim 1, characterized in that: The linkage mechanism (15) comprises: A lifting plate (16) is movably mounted on the mounting frame (105) and can slide up and down; A limiting unit (8) used for limiting the position of the lifting plate (16); A lifting groove (1501), which is provided on the lifting plate (16) and is parallel thereto; The double-sided rack (1502) is installed in the lifting slot (1501) in a lifting and sliding manner, with one side meshing with the linkage gear (302) and the other side being in transmission cooperation with the telescopic actuating motor (304) through the driving gear (1503).

3. A fingerprint lock with a retractable handle according to claim 2, characterized in that: The limiting unit (8) comprises: A movement limiting groove (801) disposed on one side of the lifting plate (16); A limiting fixed groove (802), which is arranged on the mounting frame (105) and corresponds to the limiting movable groove (801); A limiting floating plug block (803) which can be floatably inserted in the limiting fixed groove (802) via a limiting floating spring, and whose outer end can be inserted into the limiting movable groove (801); A cable hole (805) is provided at the lower end of the lifting plate (16).

4. A fingerprint lock with a retractable handle according to any one of claims 1 to 3, characterized in that: The shielding device (4) further comprises: A communication cavity (401), which is arranged in the cabinet door panel (101) and is connected to the outer end of the telescopic slot (102); A guide cavity (402), which is arranged at the top of the inner wall of the cabinet door panel (101) and is connected to the top of the communication cavity (401); An open cavity (403) disposed at the bottom of the inner wall of the cabinet door panel (101) and connected to the lower end of the connecting cavity (401); The telescopic groove (102) passes through the cabinet door panel (101) from left to right, is located between the guide cavity (402) and the open cavity (403), and has a rectangular cross-section. The deformable shielding plate (6) can slide in the guide cavity (402), the connecting cavity (401) and the open cavity (403).

5. The fingerprint lock with a retractable handle according to claim 4, characterized in that: The deformable shielding plate (6) comprises: A plurality of gear bars (601), each comprising a body (6011), a plug-in slot (6012) and a connecting block (6013); A plurality of hinge shafts (602) for hinge-connecting the insertion slots (6012) and the connection blocks (6013) of adjacent stop bars (601); A through hole (603) passing through the upper 1 / 3 of each of the gear bars (601); A plurality of mounting grooves (604) are respectively arranged on the outer surface of each gear bar (601) located at the middle 1 / 3; A plurality of telescopic baffles (605) slidably mounted in corresponding mounting grooves (604); The displacement actuating mechanism (5) cooperates with each of the hinge shafts (602) to drive each of the baffle bars (601) to slide in the guide cavity (402), the connecting cavity (401) and the open cavity (403); the displacement actuating mechanism (5) controls each of the telescopic baffles (605) to extend into the outer end of the telescopic groove (102) / retract into the mounting groove (604) through a pair of push linkage devices (10).

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