765results about "Handle fasteners" patented technology

The utility model discloses a lockset with an improved back locking structure, which comprises a first fixing component and a spring bolt, the first fixing component is provided with a first handle, the first handle drives the spring bolt to perform unlocking action through a locking bar, the first handle comprises a handle seat movably provided with a key, one side, facing the locking bar, of the key is movably provided with a lock pin, and the first fixing component is provided with a lock hole. The lock bar is provided with a through hole, the handle seat is provided with a receding hole, the handle seat and the key are matched through a clutch structure, the first handle has a back locking state and a normal state, the handle seat and the lock bar are in transmission connection in a clearance fit mode, the back locking state is achieved, the lock bar and the first fixing assembly are relatively fixed by the lock pin after the key is pressed down, and the normal state is achieved. The handle base rotates by a first preset angle, clearance fit is eliminated, back locking is relieved, and the handle base continues to rotate by a second preset angle to drive the lock bar to rotate. Unlocking and unlocking processes after back locking of the lock are realized through seamless connection and rotation of the first handle, and the lock is smooth and simple to operate and easy to use.

The invention relates to the technical field of safety control of fire exit doors, in particular to an emergency unlocking device and system of an intelligent fireproof door. The analysis subsystem outputs a fire alarm confidence coefficient value and an operation intention intensity value; the arbitration subsystem sends a blocking signal to the automatic locking control system and activates a to-be-decoupled state of the execution subsystem when the intensity of the operation intention exceeds a threshold value; the execution subsystem synchronously adjusts a mechanical transmission stroke parameter and an electromagnetic latching current parameter according to the intensity value of the operation intention; the fault-tolerant subsystem switches the mechanical locking mechanism to a geometric dead point position to release automatic control connection; and the traceability subsystem records the operation data and maintains storage when the power supply is interrupted. According to the invention, a closed-loop control chain from signal sensing to physical decoupling is formed, the problem of authority conflict of automatic locking logic blocking manual operation is solved, and the timeliness and reliability of emergency unlocking are improved.

The invention discloses a violent unlocking prevention intelligent door lock which comprises an inner lock assembly and an outer lock assembly which are arranged on the inner side and the outer side of a door, and a spring bolt used for controlling a lock cylinder to be unlocked. The outer lock seat, the outer handle, the outer limiting ring, the torsional spring, the clutch lock head, the baffle, the plug pin assembly, the clutch motor, the clutch pressing plate and the control panel are arranged on the outer shell, and the purpose is that the clutch motor drives linkage control of the clutch pressing plate and the plug pin assembly, so that dynamic locking / separation of the outer lock seat and the clutch lock head is achieved; when a legal identity is verified through fingerprints / passwords, the control panel triggers the clutch motor to move the clutch pressing plate upwards and tightly press the plug pin assembly, the clutch lock head and the outer lock base are locked, unlocking can be achieved by rotating the outer handle at the moment, if the legal identity is not verified, the clutch lock head and the outer lock base cannot be locked all the time, and unlocking can be achieved even if the outer handle is forcibly twisted. And the clutch lock cannot be driven to rotate, so that the property safety of a user is protected.

The utility model relates to a driving mechanism of a full-automatic intelligent lock, which comprises an unlocking driving mechanism of a lock body provided with a motor driving dead bolt, a trigger bolt and a latch bolt telescopic lock shell, and is characterized in that the driving mechanism is provided with a transmission sheet, a dead bolt shifting sheet, a driving sheet, a dead bolt shifting block, a switching gear, a handle shifting sheet, a handle gear shifting sheet and a gear opening sheet, the square tongue, the motor, the square shaft, the trigger tongue and the inclined tongue are sequentially connected to form a driving mechanism. When a lock is unlocked, a dead bolt can drive a trigger bolt and an inclined bolt to push a lock shell together during driving, so that the lock shell is very smooth, the mute effect is achieved, and the structural optimization is extreme. The mechanical structure design of the lock body is simple, the lock body control panel of the intelligent part is connected with the motor, and the bevel gear of the motor is meshed with the upper teeth of the switching gear, so that the dead bolt, the trigger bolt and the inclined bolt are easy to unlock, low in power consumption and convenient to install, multiple functions of electronic unlocking and key unlocking are considered, and the structure is innovative and unique.

The embodiment of the utility model provides a door lock device, which relates to the technical field of door locks, and comprises a door lock main body, a door inner handle, a first counter locking piece, a second counter locking piece and a counter locking switch, the inside door handle is fixedly connected with the first counter locking piece; the first counter locking piece and the second counter locking piece are adjacently arranged, and the first counter locking piece is provided with a protruding part; the second counter locking piece is adjacent to the counter locking switch, and an elastic piece is arranged on the side, adjacent to the second counter locking piece, of the counter locking switch. The inside door handle drives the first counter locking piece to rotate in the rotating process, so that the lug boss is in contact with and pushes the second counter locking piece; the second back locking piece is pushed to abut against the elastic piece, the back locking switch is triggered to control the lock cylinder in the door lock body to release the back locking state, and therefore the back locking operation convenience of the intelligent door lock is improved.

The application belongs to the technical field of door and window hardware fittings, and discloses a handle device and an in-swinging and in-swinging-out door and window system. The handle device comprises a handle, a handle seat, a transmission member and a transmission mechanism for driving the transmission member to move, the handle is rotationally connected to the handle seat, the transmission mechanism is connected to the handle seat and is in transmission connection with the handle and the transmission member, and the handle is connected with a hanging and locking mechanism which can be hung on the handle seat to lock the handle and can be manually unlocked by a user. The in-swinging and in-swinging-out door and window system comprises an in-swinging and in-swinging-out window sash and the handle device. The handle device and the in-swinging and in-swinging-out door and window system can effectively prevent the user from misoperation and accidental opening, have good handle anti-misoperation effect and good user experience.

The application discloses a self-locking transmission shell structure and a door and window handle structure using the same. The self-locking transmission shell structure comprises a shell, a transmission assembly, a locking hook and a supporting piece. The transmission assembly comprises a transmission rack and a transmission gear meshing with one side of the transmission rack. The locking hook is rotatably connected to the upper end of the shell. The upper end of the supporting piece is connected with the locking hook, and the lower end is rotatably connected with the shell. The upper end of the transmission rack is provided with a limiting piece, and the locking hook is provided with a limiting groove. When the transmission rack is lifted to a first predetermined position, the limiting piece is located in the limiting groove. When the transmission rack is lowered to a second predetermined position, the limiting piece is separated from the limiting groove. Through cooperation of the limiting piece, the limiting groove and the elastic piece, the transmission rack can be moved to the predetermined position, the door and window handle can be positioned and kept in place without rebounding in the open lifting state, the handle movement is slowed down in the lowering process, the handle is prevented from rotating at a high speed, and the door and window will not be attenuated even if they are frequently used.

The utility model discloses a cooling tower access door lock which comprises an access door body, an outer side handle and an inner side handle, the outer side handle is installed on the outer side face of the access door body in a sliding mode, the inner side handle is installed on the inner side face of the access door body in a sliding mode, and the inner side handle and the outer side handle are fixedly connected. A through hole is formed in the side face of the access door body, the end of the inner side handle extends towards the through hole to form a spring bolt part, and in the locking state, the spring bolt part penetrates through the through hole and extends to the outer side of the access door body. The inner side handle and the outer side handle are arranged to form a linkage structure, the door lock can be independently operated inside or outside a tower, the problem that an existing door lock is limited by one-way operation is solved, and the door lock is simple in overall structure, low in cost and suitable for installation and use of various cooling tower access doors.

The utility model relates to a manual and automatic integrated door and window lock which comprises a lock shell, a spring bolt and a handle and is characterized in that a control rotating shaft is arranged at the position, corresponding to the spring bolt, of the lock shell, a rack is arranged at the position, corresponding to the control rotating shaft, of the spring bolt, a spring bolt gear meshed with the rack is arranged at one end of the control rotating shaft, and a control part linked with the handle is arranged at the other end of the control rotating shaft. An electric drive mechanism and a clutch mechanism are arranged in the lock shell, a control gear linked with the electric drive mechanism is arranged on the control rotating shaft, the clutch mechanism is arranged between the electric drive mechanism and the control rotating shaft and controls linkage or separation of the electric drive mechanism and the control rotating shaft, and the door and window lock can be operated manually or electrically. By means of the design of the clutch mechanism, seamless switching between manual operation and electric operation can be achieved, the influence of manual operation on the load of the motor is avoided, and rapid unlocking of the rapid door and window lock in an emergency situation is achieved.

The utility model discloses a door and window rope lock structure capable of stopping randomly, which comprises a handle component mounted on a movable frame of a door or a window frame, lock body components arranged at two ends of the movable frame, and a pull rope for connecting the lock body components with the handle component, the handle assembly comprises an inner handle, an outer handle synchronously rotating with the inner handle, a clamping shell and a connecting block, and a locking assembly used for relatively limiting rotation of the inner handle is arranged on the inner handle; the connecting block is arranged between the inner handle and the outer handle and rotates synchronously with the inner handle and the outer handle; the lock body assembly comprises a lock body shell, a sliding part connected with the other end of the pull rope, two clamping parts matched with the sliding part to clamp the guide rail and a first-stage torsional spring, the two sides of the bottom of the sliding part are connected with the two clamping parts respectively, and the two clamping parts are fixedly connected with the lock body shell and move in the vertical direction along with the sliding part; and the two clamping pieces are clamped with or loosened from the guide rail.

The invention relates to the technical field of locks, and discloses a handle mandrel assembly and locks.The handle mandrel assembly comprises a fixing piece, a handle mandrel, a limiting piece and a reset bias piece, the fixing piece is suitable for being fixed to the inner side face of a lockset panel and provided with a positioning hole axially opposite to a handle hole in the lockset panel, and the limiting piece is provided with a reset bias piece; a first blocking part and a second blocking part are respectively arranged on two axisymmetric sides of the positioning hole of the fixing piece; the handle mandrel is rotatably arranged in the handle hole and the positioning hole in a penetrating manner; the limiting piece is rotationally arranged on the handle mandrel along with the handle mandrel, and is provided with a first pushing and blocking part corresponding to the first blocking part and a second pushing and blocking part corresponding to the second blocking part; the reset bias piece is provided with a connecting part which is in elastic deflection connection with the handle mandrel as a fulcrum, a first arm which extends out of the connecting part and is suitable for abutting against the first blocking part, and a second arm which extends out of the connecting part and is suitable for abutting against the second blocking part. The structural stability and the quality stability of the whole handle mandrel assembly can be improved.

The application relates to a door lock device for an emergency passage of a public building, relates to the technical field of door locks, and aims to improve the problem that a door lock handle cannot be conveniently replaced. The door lock device for the emergency passage of the public building comprises a mounting frame and a rotating frame rotatably arranged on the mounting frame, the rotating frame is externally provided with a handle, the rotating frame is slidably connected with the handle, a guide assembly is arranged between the rotating frame and the handle, and the guide assembly is used for guiding the handle to slide and be clamped with the rotating frame; and a locking assembly is arranged on the rotating frame and used for locking the handle and the rotating frame. The application has the effect that the door lock handle can be conveniently replaced.

This invention provides a smart lock, including a housing, a bolt assembly, a handle drive assembly, a motor drive assembly, and a lock cylinder drive assembly. The bolt assembly includes a bolt movably disposed within the housing. The handle drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. The motor drive assembly is also connected to the bolt to drive the bolt to extend or retract into the housing. The lock cylinder drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. By configuring the handle drive assembly, motor drive assembly, and lock cylinder drive assembly to all be connected to the bolt, and by ensuring that each of these components is independent, the bolt can be independently driven to extend or retract into the housing. This provides multiple methods for driving the bolt, ensuring that if one unlocking method fails, other methods can be used to unlock the lock, thus guaranteeing the normal operation of the smart lock.

The utility model discloses a counter-pulling anchoring flood gate adopting a rear anchoring mode, which comprises a door frame structure, a door leaf, a locking structure, a hinge and an anchoring device, the door frame structure is arranged in a door opening of a wall body through the anchoring device, the door leaf is connected to the wall body through the hinge, and the locking structure is arranged on the door leaf; the door frame structure comprises a door frame and a doorsill, the anchoring devices comprise the first anchoring device and the second anchoring device, the door frame is arranged in a door opening of a wall through the first anchoring device, the doorsill is arranged on the ground through the second anchoring device, and the hinge is arranged on the wall through the first anchoring device. The door frame is fixed in the wall body through the anchoring device, the structural complexity of the door frame is greatly reduced, the adopted opposite-pulling anchoring mode has the advantages of being simple in structure, high in anchoring strength and convenient to install, and the protection performance of the moisture-proof door can be effectively improved.

An external electric control lock comprises an outer fluted disc, an inner fluted disc, a spring bolt mechanism and a spring bolt shifting fork, outer locking strips and inner locking strips are arranged on the side edges of the outer fluted disc and the inner fluted disc, when the outer locking strips move to the locking state, the outer fluted disc is limited to rotate in the opening direction, and when the inner locking strips move to the locking state, the inner fluted disc is limited to rotate in the opening direction; an outer side reversing gear is arranged on the side edge of the outer locking strip, the inner fluted disc rotates in the opening direction, outer gear teeth are pushed to enable the outer side reversing gear to rotate, and the outer locking strip is driven to be switched to the opening state. An inner side reversing gear is arranged on the side edge of the inner locking strip, the outer fluted disc rotates in the opening direction, the inner gear teeth are pushed to enable the inner side reversing gear to rotate, and the inner locking strip is driven to be switched to the opening state. The inner side mechanical switch and the outer side mechanical switch are additionally arranged on the basis of the electric control lock, the function of opening the door through the handle inside the door can be closed through the inner side mechanical switch, the function of opening the door through the outer side mechanical switch can be closed through the outer side mechanical switch, a safety mode is achieved, and therefore the anti-theft performance is further improved.

This application relates to the field of escape locks, and more particularly to a two-way opening structure for an escape lock and an escape door using this structure. A two-way opening structure for an escape lock includes a lock body assembly, a linkage assembly, a lock seat assembly, and a sealing assembly. The lock body assembly is used to apply force to control unlocking. The linkage assembly is used to synchronously drive the lock seat assembly when the lock body assembly moves. The lock seat assembly and the sealing assembly are used to cooperate in locking / unlocking the escape door. The lock seat assembly / sealing assembly includes a sealing hole and side guide surfaces located on both sides of the sealing hole. The sealing assembly / lock seat assembly includes a sealing pin that can be inserted into the sealing hole by cooperating with either side guide surface. When the door is closed, the door is reset. Because the lock seat assembly / sealing assembly has side guide surfaces, the sealing pin retracts along the side guide surfaces when it is in contact with them, and is inserted when the sealing pin is directly opposite the sealing hole, completing the locking action. Therefore, two-way opening is achieved.

The utility model discloses a door and window handle, and belongs to the technical field of door and window parts. The door and window handle comprises a base assembly, the base assembly comprises a mounting base, a fixing cover is connected to the inner wall of the mounting base, a square shaft is connected to the center of the interior of the fixing cover through a bearing, an insertion groove is formed in the end, close to the inner wall of the mounting base, of the square shaft, and a handle assembly is arranged on the back face of the mounting base and comprises a fixing base; one end of the fixing base is connected with the back face of the mounting base, a first circular plate is movably arranged on one side in the fixing base, an inserting rod is connected to the front face of the first circular plate, a second circular plate is connected to the portion, close to the mounting base, of the fixing base through a bearing, and a first spring is connected between the first circular plate and the second circular plate. The end, away from the spring, of the first circular plate is connected with an extrusion rod, and the end, away from the first circular plate, of the extrusion rod penetrates through the fixing base, extends to the outside and is provided with a handle body.

The utility model relates to a high-strength handle and plane lock which comprises a shell, a mounting part is arranged on the shell, a connecting part is arranged at one end of the shell, a reinforcing block is embedded in the shell, a lock hole corresponding to the mounting part is formed in the reinforcing block, and a shaft seat corresponding to the connecting part is arranged at one end of the reinforcing block. The strength and the stability of the handle are improved by embedding the reinforcing block in the shell, the handle is prevented from being deformed or damaged when being stressed, the sawing-resistant and prying-resistant effects can be better achieved, and the strength of the handle is guaranteed and the material cost is reduced by adopting the mode of combining the two materials.

The application discloses a handle fingerprint intelligent lock and a clutch mechanism thereof, which can prevent the lock from being violently knocked and 360-degree violently rotated to open the lock, and improves the safety performance of the lock. The clutch mechanism comprises a clutch base and a clutch shaft coaxially arranged, a torsional spring, a motor, a circular arc piece and a clutch bolt. The clutch base and the clutch shaft are in rotational cooperation with opposite end surfaces, and at least one pair of first grooves and second grooves are arranged between the circumferential surfaces of the clutch base and the clutch shaft. The opposite end surfaces of the clutch base and the clutch shaft are respectively connected with a handle of the fingerprint lock and a square bar. The torsional spring is used for driving the clutch base to reset to a state in which the first grooves and the second grooves are aligned. The motor is arranged on the side of the clutch base, and an output shaft of the motor is arranged on the radial direction of the clutch base. The middle part of the circular arc piece is connected to the output end of the motor, and an arc-shaped movable groove is arranged on the circular arc piece. One end of the clutch bolt is slidingly connected with the second groove and movably embedded in the first groove, and the other end of the clutch bolt is movably connected with the movable groove.

The application relates to the technical field of handles, and discloses a handle, which comprises a lock body, a square rod is slidingly inserted into the inside of the lock body, mounting rods are fixedly connected to the two sides of the square rod, a sleeve ring is slidingly sleeved on the outer circumferential surface of each mounting rod, a mounting plate is slidingly sleeved on the outer circumferential surface of each mounting rod, and a handle is fixedly connected to the top end of each mounting plate. The handle is characterized in that the mounting plate is directly fixed on the mounting rods at the two ends of the square rod by rotating the lead screw to drive the positioning rod to move and be inserted into the positioning hole, the handle is convenient to install, disassemble and maintain, manpower is saved, the handle is prevented from being fixed on the door plate by using screws, damage to the door plate is prevented, the appearance of the door plate and the reuse after subsequent disassembly are not affected, and the problems that the handle and the door plate are fixed by using screws, the disassembly and maintenance are relatively laborious, the screws cause damage to the structure of the door plate, the appearance of the door plate is affected, and the reuse after subsequent disassembly is affected are solved.

A square hole shaft comprises a large column in the middle and small columns arranged at the two ends of the large column in the length direction, and at least part of the end, close to the small columns, of the large column in the circumferential direction is contracted inwards to form a step structure; the utility model provides a handle lock rotating structure with a bearing and a pull rod and a handle lock. A first shifting piece and a second shifting piece are respectively sleeved at a step structure of a square hole shaft to form stable fixation; the two rotary bearings are arranged on the two small columns respectively in a sleeving mode, in the rotating process of the square hole shaft, the square hole shaft drives the inner rotating part to rotate, the outer fixing parts of the rotary bearings are fixed respectively and rotate, the rotary bearings support the square hole shaft, meanwhile, resistance in the rotating process is reduced, and operation resistance and noise are controlled. The spring provides resilience force for realizing the latch bolt, and the guide column provides sliding guide of the latch bolt and position limitation of the spring.

The utility model relates to the technical field of locks, and discloses a mechanical coded lock, which comprises a lock seat, the lock cylinder module is rotatably arranged on the lock seat, a handle is arranged on the lock seat, and the lock cylinder module is driven to rotate relative to the lock seat by rotating the handle, so that unlocking or locking of the mechanical coded lock is achieved; the password wheel assembly is arranged between the lock seat and the handle; the password wheel assembly comprises a plurality of password wheels, a slope part is arranged on the handle, and the password wheels are exposed out of the slope part; the plurality of code wheels are shifted to correct codes, so that the locking of the code wheel assembly on the handle is relieved; when a user holds the handle to unlock the lock, the thumb of the user naturally extends towards the slope part, and the thumb can touch the password wheels in the swing range on the slope part, so that the password switching action and the handle rotating action can be continuously completed in a single-hand holding state. The mechanical coded lock has the advantages that the mechanical coded lock utilizes ergonomics, the comfort level and the use feeling of a user are improved, and the mechanical coded lock is convenient to operate and unlock.

The utility model relates to the technical field of manual and automatic switching devices of electronic locks, and discloses a manual and automatic switching device of a casement window electronic lock, which comprises a mounting component, a lock body structure, a rotating piece and a mounting component, the mounting component comprises a mounting plate, a mounting hole is arranged on the outer wall of the mounting plate, and the lock body structure is arranged on the outer wall of the mounting plate. The lock body structure is mounted on the outer wall of the mounting plate, the rotating part comprises a handle and a rotating rod, the handle is fixedly connected to one end of the rotating rod, and the handle is mounted on the outer side of the lock body structure. Through the arrangement of the pull rod, when the motor of the casement window is out of power or breaks down and the driving gear cannot be driven to rotate, the pull rod is pulled to separate the driven gear from the driving gear, after separation, the handle is rotated to drive the rotating rod to rotate and control the locking block to rotate, and the locking block is locked by manually operating the rotating rod and the locking block. Opening and closing control of the casement window is achieved.

The utility model discloses a handle with a lock, which relates to the technical field of door and window accessories, and comprises a handle, a lock cylinder component, a spring bolt component, a fixed seat and a decorative cover, the lock cylinder component consists of a lock cylinder sleeve and a lock cylinder, the spring bolt component consists of a spring bolt and a spring bolt support, and a cavity penetrating up and down is arranged in the handle. The lock cylinder assembly and the spring bolt assembly are arranged in the cavity, and the lock cylinder assembly is arranged above the spring bolt assembly. Compared with the prior art, the door and window handle has the advantages that the function design of the lock head is added, the door and window handle can be prevented from being opened by mistake by children, and the problems that in the prior art, due to the fact that a door and window handle is not provided with a lock, the door and window handle can be opened by mistake by children, and the door and window handle cannot be opened by mistake by children are solved. And potential safety hazards exist.

The utility model discloses a door lock which comprises a lock shell, a spring bolt assembly, a transmission assembly, a spring bolt driving assembly, an unlocking shifting block and an elastic reset piece. When the unlocking shifting block rotates to the unlocking position, the driving block drives the matching block to enable the transmission frame to move, and then the spring bolt assembly can retract into the lock shell. When the elastic reset piece drives the transmission frame to reset, the transmission frame pushes the unlocking shifting block to rotate and reset to a reset position; when the unlocking shifting block is located at the reset position, the driving block and the matching block are in surface contact, contact point abrasion between the driving block and the matching block is not prone to occurring, even if local abrasion occurs, overall surface contact positioning is not affected, and the unlocking shifting block can still be reset accurately after being used for a long time.

The utility model discloses a miniature intelligent lock clutch mechanism which comprises a fixed base, a movable support, a round handle, a lock cylinder sleeve and a locking assembly, an installation hole is formed in the center of the fixed base, an annular sliding groove is formed in the middle of the fixed base and on the outer side of a lock sleeve hole, the lock sleeve hole is formed in the center of the movable support, the lock cylinder sleeve is inserted into the lock sleeve hole, and the locking assembly is arranged on the round handle. The lower portion of the movable support is fixedly provided with a circular-ring-shaped protruding part, the circular-ring-shaped protruding part is inserted into the circular-ring-shaped sliding groove, the outer edge of the fixed base is sleeved with the circular handle, the circular handle can rotate relative to the fixed base, and the circular handle is connected with the movable support through a fastening screw. According to the miniature intelligent lock clutch mechanism, clutch control over an intelligent lock is achieved, a traditional clutch control thought is broken through, the whole structure is simple and easy to achieve, the manufacturing cost and the fault occurrence rate are reduced, the size of the intelligent lock is reduced on the whole, and the miniature intelligent lock clutch mechanism has a great promoting effect on achieving miniaturization of the intelligent lock.

The invention belongs to the technical field of door and window hardware fittings for buildings, and particularly relates to a micro window hardware sealing system which comprises a handle assembly, a transmission assembly, a locking assembly and a hinge assembly. The handle assembly, the transmission assembly, the locking assembly and the hinge assembly are hidden in the profile through preset mounting channels, the transmission assembly comprises a main transmission rod, a first driven transmission rod, a second driven transmission rod and a linkage connecting piece, and the main transmission rod and the second driven transmission rod are arranged in the height direction of a window sash; the main transmission rod and the second driven transmission rod are located on the two sides of the window sash respectively, the first driven transmission rod is arranged in the height direction of the window sash and arranged at the top of the window sash, and the linkage connecting piece comprises a first corner device and a second corner device. Through uniform distribution of multiple locking points, the structural stability of the whole window is improved, and sealing failure caused by uneven stress of a high window type is avoided.

The utility model discloses a handle mechanism with an emergency unlocking piece. The handle mechanism comprises an outer side handle and an inner side handle. The unlocking piece body is provided with a connecting end and used for being installed on the outer side handle and / or the inner side handle; the outer side handle and the inner side handle are both provided with connecting holes used for assembling the connecting ends, and the connecting ends are detachably connected with the connecting holes. The unlocking piece body can be selectively installed on the outer side handle or the inner side handle and even can be installed on the outer side handle and the inner side handle at the same time according to needs. According to the design, higher flexibility is provided, the use requirements in different scenes are met, when the unlocking piece body is not installed, the connecting hole is hidden or difficult to touch, and therefore the risk that any person can conduct illegal operation through the connecting hole is avoided. In this way, the safety of the door body is greatly improved, once the unlocking piece body is installed, the unlocking piece body can serve as a handheld piece, and a user can conduct unlocking operation through the connecting hole conveniently.

The utility model discloses a mute door handle, which relates to the technical field of door handles and comprises a door handle main body, the door handle main body comprises a lockset panel, a bearing seat, a square rod and a handle are arranged in the middle of the lockset panel, one end of the lockset panel is provided with a mounting screw, a sound insulation plate is arranged in the lockset panel, and the sound insulation plate is provided with a sound insulation groove. An extension handle and a protection assembly are arranged at one end of the handle, the protection assembly comprises an installation sleeve, a T-shaped installation sliding rail is arranged in the installation sleeve, a rubber protection sleeve is arranged outside the installation sleeve, a positioning plate is arranged at one end of the installation sleeve, and a threaded rod is arranged on the side face of the positioning plate. According to the mute door handle, the protective assembly is arranged outside the extension handle in the sleeving mode, so that the extension handle and a user are protected, the extension handle is separated through the installation sleeve and the rubber protective sleeve, the user is prevented from making direct contact with the extension handle to generate static electricity, and the use comfort of the handle is improved.

The utility model belongs to door lock spare technical field relates to a new hidden handle. The utility model, including the base, the base has the accommodation space inside, the accommodation space bottom is connected with the sliding slot, is equipped with the shift fork that can reciprocate linear motion along the horizontal direction in the accommodation space, the shift fork passes through the sliding slot and is slid with the sliding slot, be equipped with the rotatable hidden handle assembly in the base. The utility model in the using process, the hidden handle assembly is designed as rotatable storage structure, turns out operation when using, stores up in the accommodation space when idling, saves the space and promotes the overall appearance integrity and the degree of beauty, simultaneously, through reasonable mechanical structure design, guarantees the stability under handle rotation and storage state.