CN212802877U - Small electronic lock - Google Patents

Abstract

The utility model relates to a small-size electronic lock, including lock shell, spring bolt subassembly and electronic unlocking means, the spring bolt subassembly includes that the activity sets up the spring bolt in the lock shell, is equipped with on the lock shell and supplies the spring bolt to stretch out, return the spring bolt mouth that contracts to lock in the lock shell, electronic unlocking means drive spring bolt, electronic unlocking means includes flip-chip motor, and flip-chip motor includes motor body, drive mechanism and drive shaft, and motor body crouches horizontally and sets up in the lock shell, and motor body's motor shaft is through drive mechanism drive shaft, and the drive shaft is connected with the spring bolt linkage, the drive shaft extends along the opposite direction of motor body's motor shaft extension direction with motor body parallel arrangement and drive shaft. The lock tongue is driven by the inverted motor, and has the advantages of large, stable and reliable lock tongue return force.

Description

Small electronic lock

Technical Field

The utility model relates to a tool to lock technical field, the small-size electronic lock of saying so certainly.

Background

In some occasions where the application space is limited, a small electronic lock with small volume is required to be used. Because small-size electronic lock volume is limited, its inside assembly space is less, therefore traditional small-size electronic lock adopts the electro-magnet to drive the spring bolt and unblanks the action, has the defect that the kayser pulling force is not enough.

Disclosure of Invention

The utility model discloses the invention purpose: for overcoming the defect that prior art exists, the utility model provides a small-size electronic lock that spring bolt pull-back is big has stable, reliable advantage.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a small-size electronic lock, includes lock shell, spring bolt subassembly and electronic unlocking means, the spring bolt subassembly is equipped with on the lock shell and supplies the spring bolt to stretch out, retract to the spring bolt mouth in the lock shell including the activity setting spring bolt in the lock shell, electronic unlocking means drive spring bolt, its characterized in that: electronic unlocking means include flip-chip motor, flip-chip motor includes motor body, drive mechanism and drive shaft, motor body crouches horizontally and sets up in the lock shell, motor body's motor shaft drives the drive shaft through drive mechanism, the drive shaft is connected with the spring bolt linkage, drive shaft and motor body parallel arrangement and drive shaft extend along the opposite direction of motor body's motor shaft direction of stretching out.

By adopting the technical scheme, the electric unlocking device for driving the lock tongue adopts the inverted motor, the inverted motor is a motor and a power output driving shaft which are arranged in parallel, and the driving shaft and the motor are power output devices assembled reversely, so that the motor body and the driving shaft are axially staggered and arranged side by side, the internal space of the lock shell is more reasonably utilized, and the electric unlocking device can be well applied to small-sized locks; the lock tongue is driven by the motor, and has the advantages of large return force of the lock tongue, stability and reliability.

Preferably, the spring bolt sliding fit is in the lock shell, and the spring bolt cooperation has the linkage spring that drives the spring bolt and tend to stretch out the spring bolt mouth, the drive shaft has external screw thread shaft part, and external screw thread shaft part screw-thread fit has the nut slider, and the linear sliding fit of nut slider is in the lock shell, and the nut slider stirs the spring bolt and contracts and constitute the linkage spring compression energy storage in order to drive the spring bolt. Under this structural design, reach the rotatory power conversion slip with the drive shaft through the external screw thread shaft part cooperation of nut slider and drive shaft, reach the action of drive spring bolt, have the reliable and stable advantage of action, and have that the spring bolt pulling force is big, stable, reliable advantage.

Preferably, a push-pull rod is arranged at the tail end of the lock tongue, a linkage spring is sleeved on the push-pull rod, a linkage end is arranged at the other end, opposite to the end connected with the lock tongue, of the push-pull rod, an opening through groove is formed in the nut sliding block, an opening corresponding to the radial direction of the push-pull rod is formed in the opening through groove, the nut sliding block is sleeved on the push-pull rod along the opening of the opening groove, and the linkage end on the push-pull rod is abutted to the nut sliding block under. Under this structural design, the spring bolt realizes reaching the linkage through the push-and-pull rod with the cooperation of nut slider, is equipped with the open slot on the nut slider and realizes assembling on the push-and-pull rod, has the advantage of easy and convenient of dismouting, and has the advantage of simple structure compactness.

Preferably, be equipped with the assembly jig in the lock shell, the assembly jig includes the body frame body and the motor mount pad of fixed mounting on the body frame body, and the body frame body includes the base plate, turns over on the base plate and turns over a formation mouth font installing frame and spring bolt location end plate, and nut slider location sliding fit is in the mouth font installing frame, and the mouth font installing frame includes the bottom plate just right with the base plate to and correspond front end plate, the back end plate of nut slider slip direction, the location rotation fit is on the front end plate after the driving shaft passes the back end plate, and spring bolt location end plate and front end plate mutual disposition, spring bolt location sliding fit on the spring bolt location end plate, and the linkage end of push-and-pull rod passes in the front end plate stretches into mouth font installing frame, linkage spring one end butt is on the spring bolt, linkage spring. Under this structural design, realize flip-chip motor and each part rational assembly in the spring bolt subassembly, have simple structure compact's advantage.

Preferably, the base plate is provided with a positioning jack, the end part of the front end plate is protruded with an insertion tongue inserted into the positioning jack, the base plate is provided with a U-shaped sliding guide plate, the U-shaped sliding guide plate penetrates through the insertion tongue and extends into the installation frame in the shape of a Chinese character kou, and the nut sliding block is provided with a guide convex block matched with the groove of the U-shaped sliding guide plate in a sliding guide manner. Under this structural design for the front end plate realizes the location fixed, and the structure is more firm, thereby the U-shaped slip deflector embolias the tongue of inserting and forms the groove to nut slider location direction in the square installing frame, has simple structure, convenient assembling's advantage.

Preferably, a lock state signal switch is arranged in the lock shell, a trigger arm sliding along with the nut slider is arranged on the nut slider, and the trigger arm and the lock state signal switch are correspondingly matched to form a structure which slides along with the nut slider to trigger the lock state signal switch to output a nut slider position signal. Under the structural design, the nut slider triggers a lock state signal switch through a trigger arm to achieve nut slider position signal output, namely, the lock tongue position signal output is realized, namely, unlocking and locking signals are formed; the device has the advantages of simple structure and reliable signals.

Preferably, the spring bolt sliding fit is in the lock shell, and the horizontal both sides wall of spring bolt is equipped with the location guide slot that extends along the spring bolt slip direction, and the protruding location arch that has to stretch into in the spring bolt mouth, location protruding and the cooperation of location guide slot location direction. Under this structural design, through the location orientation when protruding and the cooperation of location guide slot reach the spring bolt and slide for the spring bolt action is more reliable and more stable, upwarps when avoiding the spring bolt withdrawal.

Preferably, an assembly frame is arranged in the lock shell, and the spring bolt assembly and the electric unlocking device are assembled on the assembly frame to form an integrated module. Under this structural design, realize the modularized design, be convenient for assembly and maintenance to and be convenient for go up and down to the transformation of the small-size electronic lock of tradition, and have the reliable advantage of cooperation of electronic unlocking means and spring bolt subassembly.

Preferably, the lock further comprises a mechanical unlocking device for driving the lock bolt to perform unlocking action, and the mechanical unlocking device is positioned behind the motor body. Under this structural design, mechanical unlocking means realizes mechanical unblanking, and mechanical unlocking means effectively utilizes the mounted position of motor body rear, has compact structure's advantage.

Preferably, the transmission mechanism is a reduction gear transmission mechanism which realizes power transmission through the cooperation of a gear pair. Under this structural design, have the advantage that the transmission is reliable and stable.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a small electronic lock according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a small electronic lock according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an integrated module formed by a lock tongue assembly and an electric unlocking device according to an embodiment of the present invention;

FIG. 4 is an exploded view of an integrated module according to an embodiment of the present invention;

fig. 5 is a schematic view of the matching structure of the lock tongue and the electric unlocking device according to the embodiment of the present invention.

Detailed Description

Referring to the attached drawings 1-5, the utility model discloses a small electronic lock, which comprises a lock case 1, a bolt assembly 2 and an electric unlocking device 3, wherein the bolt assembly 2 comprises a bolt 21 movably arranged in the lock case 1, a bolt opening 11 for extending and retracting the bolt 21 into the lock case 1 is arranged on the lock case 1, the electric unlocking device drives the bolt 21, the electric unlocking device 3 comprises an inverted motor, the inverted motor comprises a motor body 31, a transmission mechanism 32 and a driving shaft 33, the transmission mechanism 32 is a reduction gear transmission mechanism which is usually matched by a gear pair (not shown in the figure) to realize power transmission, the reduction gear transmission mechanism is a mechanism which realizes speed reduction output by meshing a plurality of gears with different diameters, the reduction gear transmission mechanism structure is a conventional technology, and a person skilled in the art selects a reduction gear transmission mechanism with a proper transmission ratio by combining the prior art under the guidance of the utility model, therefore, detailed description of the structure is omitted, the motor body 31 is horizontally arranged in the lock case 1, the motor shaft of the motor body 31 drives the driving shaft 33 through the transmission mechanism 32, the driving shaft 33 is linked with the bolt 21, the driving shaft 33 is arranged in parallel with the motor body 31, and the driving shaft 33 extends along the direction opposite to the extending direction of the motor shaft of the motor body 31. The electric unlocking device for driving the lock tongue adopts an inverted motor, the inverted motor is a motor and a power output driving shaft which are arranged in parallel, and the driving shaft and the motor are power output devices which are assembled reversely, so that the motor body and the driving shaft are axially staggered and arranged side by side, the inner space of the lock shell is more reasonably utilized, and the electric unlocking device can be well applied to small locks; the lock tongue is driven by the motor, and has the advantages of large return force of the lock tongue, stability and reliability.

In this embodiment, the bolt 21 is slidably fitted in the lock case 1, and the bolt 21 is fitted with a linkage spring 22 that drives the bolt 21 to extend out of the bolt opening 11; the driving shaft 33 is provided with an external thread shaft section 331, the external thread shaft section 331 is in threaded fit with a nut sliding block 34, the nut sliding block 34 is in linear sliding fit in the lock shell 1, and the nut sliding block 34 toggles the bolt 21 to drive the bolt 21 to retract and form the compression energy storage of the linkage spring 22. The nut slider is matched with the external thread shaft section of the driving shaft to convert the rotary power of the driving shaft into sliding power and drive the lock tongue to act, so that the lock tongue has the advantages of stable and reliable action and large, stable and reliable lock tongue return force.

The tail end of the lock tongue 21 is provided with a push-pull rod 23, the linkage spring 22 is sleeved on the push-pull rod 23, the other end of the push-pull rod 23, which is opposite to the end connected with the lock tongue 21, is provided with a linkage end 231, the nut slider 34 is provided with an open through groove 341, the open through groove 341 is provided with an opening 3411 which radially corresponds to the push-pull rod 23, so that the nut slider 34 is conveniently sleeved on the push-pull rod 23 along the opening of the open groove 341, and the linkage end 231 on the push-pull rod 23 is abutted to the nut slider 231 under the drive of. The spring bolt realizes through the push-and-pull rod that the cooperation reaches the linkage with the nut slider, is equipped with the open slot on the nut slider and realizes assembling on the push-and-pull rod, has the simple and convenient advantage of dismouting, and has the simple structure advantage compact.

Be convenient for the customer to the small-size tool to lock of tradition direct transformation cost utility model discloses flip-chip motor formula small-size electronic lock, be equipped with assembly jig 4 in the lock shell 1, spring bolt subassembly 2 and electronic unlocking means 3 all assemble and constitute integrated module on assembly jig 4. More specifically: the assembly frame 4 comprises a main frame body 41 and a motor mounting seat 42 fixedly mounted on the main frame body 41, the main frame body 41 comprises a base plate 411, the base plate 411 is folded upwards to form a square-shaped mounting frame 412 and a lock tongue positioning end plate 413, a nut sliding block 34 is positioned and matched in the square-shaped mounting frame 412 in a sliding mode, the square-shaped mounting frame 412 comprises a bottom plate 4121 opposite to the base plate 411, a front end plate 4122 and a rear end plate 4123 corresponding to the sliding direction of the nut sliding block 34, a driving shaft 33 penetrates through the rear end plate 4123 to be positioned and matched on the front end plate 4122 in a rotating mode, the lock tongue positioning end plate 413 and the front end plate 4122 are arranged oppositely, a lock tongue 21 is positioned and matched on the lock tongue positioning end plate 413, a lock tongue positioning sleeve 4131 is mounted in the mounting hole 4130, the lock tongue 21 is positioned and matched in the lock tongue positioning sleeve 4131 in a sliding mode, a linkage end 231 of a push-pull, to facilitate the linkage end to pass through the front end plate 4122, the front end plate 4122 may be provided with an assembly opening formed by a push rod hole through which the push-pull rod 23 passes, the radial side of which penetrates the edge of the front end plate 4122; or a push rod hole for the push rod to pass through on the front end plate is larger than the outer diameter of the linkage end, or the side edge of the push rod hole for the push rod to pass through on the front end plate 4122 is connected with an assembly hole 41221 larger than the outer diameter of the linkage end, one end of the linkage spring 22 is abutted against the lock tongue 21, and the other end of the linkage spring 22 is abutted against the front end plate 4122. Realize each part rational assembly among flip-chip motor and the spring bolt subassembly, have simple structure compact's advantage.

A positioning insertion hole 4111 is arranged on the base plate 411, an insertion tongue 4124 inserted into the positioning insertion hole 4111 is protruded at the end of the front end plate 4122, a U-shaped sliding guide plate 414 is mounted on the base plate 411, the U-shaped sliding guide plate 414 penetrates through the insertion tongue 4124 and extends into the square-shaped mounting frame 412, and the nut slider 34 is provided with a guide projection 342 in sliding guide fit with the groove of the U-shaped sliding guide plate 414. The front end plate is positioned and fixed, the structure is more stable, the U-shaped sliding guide plate is sleeved in the inserting tongue, so that a groove for positioning and guiding the nut sliding block is formed in the square mounting frame, and the nut sliding block positioning and guiding device has the advantages of simple structure and convenience in assembly; and the groove of the U-shaped sliding guide plate can fully utilize the moving space in the square mounting frame, and the structure is compact.

In the specific embodiment, a lock state signal switch 5 is arranged in the lock shell 1, a trigger arm 343 which slides along with the nut slider 34 is arranged on the nut slider 34, the trigger arm 343 and the lock state signal switch 5 are correspondingly matched to form a position signal which is used for triggering the lock state signal switch 5 to output a lock tongue 21 along with the sliding of the nut slider 34, the lock state signal switch and the trigger arm aim to form an unlocking signal and a locking signal, the nut slider triggers the lock state signal switch through the trigger arm to form a corresponding signal, and the nut slider drives the lock tongue to enter the unlocking position due to the movement of the nut slider, so that the lock state signal switch forms a corresponding signal through the trigger arm when the nut slider slides to the unlocking position of the lock tongue, namely, the unlocking signal and the locking signal are formed; the lock state signal switch can be a microswitch, a photoelectric switch, a magnetic induction switch or the like, and specific personnel in the field can select the lock state signal switch according to the needs.

The bolt 21 is matched in the lock shell 1 in a sliding mode, the two lateral walls of the bolt 21 are provided with positioning guide grooves 211 extending along the sliding direction of the bolt 21, positioning protrusions 111 extending into the positioning guide grooves 211 are arranged on the inner side of the bolt opening 11 in a protruding mode, and the positioning protrusions 111 are matched with the positioning guide grooves 211 in a positioning and guiding mode. In this embodiment, the lock tongue opening 11 is formed by the lock tongue locating sleeve 4131, and the corresponding locating protrusion 111 is integrally formed on the lock tongue locating sleeve 4131, so that the lock tongue is simple in structure and convenient to process, and the locating protrusion and the locating guide groove are matched to achieve locating guidance when the lock tongue slides, so that the lock tongue acts more stably and reliably, and upwarping when the lock tongue retracts is avoided.

In order to facilitate the use of the lock, a mechanical unlocking device 6 for driving the lock tongue 21 to perform an unlocking action is further arranged in the lock case 1, the mechanical unlocking device 6 can be a mechanical lock cylinder, a knob, a push button and other existing mechanical unlocking structures, and the mechanical unlocking device 6 is located behind the motor body 31. The mechanical unlocking device realizes mechanical unlocking, effectively utilizes the mounting position behind the motor body, and has the advantage of compact structure. A toggle plate 6-1 is arranged on the lock bolt 21, and the mechanical unlocking device 6 is provided with an unlocking finger 61 for toggling the toggle plate 6-1 to drive the lock bolt to retract.

Claims (10)

1. The utility model provides a small-size electronic lock, includes lock shell, spring bolt subassembly and electronic unlocking means, the spring bolt subassembly is equipped with on the lock shell and supplies the spring bolt to stretch out, retract to the spring bolt mouth in the lock shell including the activity setting spring bolt in the lock shell, electronic unlocking means drive spring bolt, its characterized in that: electronic unlocking means include flip-chip motor, flip-chip motor includes motor body, drive mechanism and drive shaft, motor body crouches horizontally and sets up in the lock shell, motor body's motor shaft drives the drive shaft through drive mechanism, the drive shaft is connected with the spring bolt linkage, drive shaft and motor body parallel arrangement and drive shaft extend along the opposite direction of motor body's motor shaft direction of stretching out.

2. A miniature electronic lock as recited in claim 1, wherein: the spring bolt sliding fit is in the lock shell, and the spring bolt cooperation has the linkage spring that the drive spring bolt tends to stretch out the spring bolt mouth, the drive shaft has external screw thread shaft part, and external screw thread shaft part screw thread fit has the nut slider, and the linear sliding fit of nut slider is in the lock shell, and the nut slider stirs the spring bolt and contracts and constitute in order to drive the spring bolt and compress the energy storage.

3. A miniature electronic lock as recited in claim 2, wherein: the tail end of the lock tongue is provided with a push-pull rod, the linkage spring is sleeved on the push-pull rod, a linkage end head is arranged at the other end, opposite to the end connected with the lock tongue, of the push-pull rod, an opening through groove is formed in the nut sliding block, an opening radially corresponding to the push-pull rod is formed in the opening through groove, the nut sliding block is sleeved on the push-pull rod along the opening of the opening groove, and the linkage end head on the push-pull rod is abutted to the nut sliding block under.

4. A miniature electronic lock as recited in claim 3, wherein: the lock is characterized in that an assembly frame is arranged in the lock shell and comprises a main frame body and a motor mounting seat fixedly mounted on the main frame body, the main frame body comprises a base plate, the base plate is turned over to form a square mounting frame and a lock tongue positioning end plate, a nut slider is positioned and slidably matched in the square mounting frame, the square mounting frame comprises a bottom plate right opposite to the base plate, a front end plate and a rear end plate corresponding to the sliding direction of the nut slider, a driving shaft penetrates through the rear end plate and then is positioned and rotatably matched on the front end plate, the lock tongue positioning end plate and the front end plate are arranged oppositely, the lock tongue is positioned and slidably matched on the lock tongue positioning end plate, a linkage end of a push-pull rod penetrates through the front end plate and extends into the square mounting frame, one end of a linkage spring is.

5. A miniature electronic lock as recited in claim 4, wherein: the nut sliding block is provided with a guide lug which is matched with the groove of the U-shaped sliding guide plate in a sliding guide mode.

6. A miniature electronic lock as recited in claim 2, wherein: the lock shell is internally provided with a lock state signal switch, the nut sliding block is provided with a trigger arm which slides along with the nut sliding block, and the trigger arm and the lock state signal switch are correspondingly matched to form a structure which slides along with the nut sliding block so as to trigger the lock state signal switch to output a nut sliding block position signal.

7. A miniature electronic lock as recited in claim 1, wherein: the spring bolt sliding fit is in the lock shell, and the horizontal both sides wall of spring bolt is equipped with the location guide slot that extends along the spring bolt slip direction, and the protruding location arch that has in the spring bolt mouth stretches into the location guide slot, location protruding and location guide slot location direction cooperation.

8. A miniature electronic lock as recited in claim 1, wherein: the lock shell is internally provided with an assembly rack, and the spring bolt assembly and the electric unlocking device are assembled on the assembly rack to form an integrated module.

9. A miniature electronic lock as recited in claim 1, wherein: the mechanical unlocking device is used for driving the lock tongue to perform unlocking action and is positioned behind the motor body.

10. A miniature electronic lock as recited in claim 1, wherein: the transmission mechanism is a reduction gear transmission mechanism which realizes power transmission through the matching of a gear pair.

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