CN110836052A

CN110836052A - Padlock capable of preventing accidental unlocking

Info

Publication number: CN110836052A
Application number: CN201911198152.6A
Authority: CN
Inventors: 幸东华
Original assignee: Shenzhen Hongxingfu Intelligent Technology Co Ltd
Current assignee: Shenzhen Hongxingfu Intelligent Technology Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-25

Abstract

The invention discloses a padlock capable of preventing accidental unlocking, which comprises: the shell comprises a shell body, wherein a first lock hole and a second lock hole are formed in the shell body; the first end of the hook can be inserted into the first lock hole, the second end of the hook can be inserted into the second lock hole, and a clamping groove is formed in the hook; the spring bolt is provided with a clamping strip and can move relative to the shell body; the first elastic element is used for enabling one end of the lock tongue to be embedded into the clamping groove under the action of the first elastic element; switch element, switch element include drive element, cam, dog and second elastic element, and second elastic element can give dog an elastic force that is close to the cam, and drive element can drive the cam rotation, and first profile can support with the dog and hold to make protruding one side of keeping away from the draw-in groove with the card strip break away from and support, second profile can support with the card strip and hold, thereby make the spring bolt break away from the draw-in groove. The invention can prevent the padlock from being accidentally opened when the padlock is impacted.

Description

Padlock capable of preventing accidental unlocking

Technical Field

The invention relates to the field of padlocks, in particular to a padlock capable of preventing accidental unlocking.

Background

At present, the padlock utilizes the elasticity of spring to prop the spring bolt, and the spring bolt blocks the couple to play the effect of locking, but when the padlock received the striking, the spring bolt can slide at inertial effect down, and when the spring bolt slided the certain distance, the spring bolt broke away from with the couple, and the padlock was opened, consequently, current padlock had certain potential safety hazard, needs to improve.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the padlock capable of preventing accidental unlocking, which can prevent accidental unlocking when the padlock is impacted under the condition of ensuring the normal use of the padlock.

In a first aspect, an embodiment of the present invention provides a padlock capable of preventing accidental unlocking, including: the lock comprises a shell body, a first lock hole and a second lock hole are formed in the shell body; the first end of the hook can be inserted into the first lock hole, the second end of the hook can be inserted into the second lock hole, and a clamping groove is formed in the hook; the spring bolt is provided with a clamping strip and can move relative to the shell body; the first elastic element is used for enabling one end of the lock tongue to be embedded into the clamping groove under the action of the first elastic element; the switch assembly comprises a driving element, a cam, a stop block and a second elastic element, wherein a protrusion is arranged on the stop block, the protrusion can be abutted against one side, far away from the clamping groove, of the clamping strip, the second elastic element can give the stop block an elastic force close to the cam, the driving element can drive the cam to rotate, a first profile surface and a second profile surface are arranged on the cam, the first profile surface can be abutted against the stop block, so that the protrusion is disengaged from one side, far away from the clamping groove, of the clamping strip, and the second profile surface can be abutted against the clamping strip, so that the lock tongue is disengaged from the clamping groove.

The padlock capable of preventing accidental unlocking of the embodiment of the invention at least has the following beneficial effects: the lock is characterized in that the lock body is provided with a lock hook, a lock hook is arranged on the lock hook, and the lock hook is provided with a locking strip; meanwhile, in order to ensure that the padlock can be normally opened, the cam is provided with the first profile surface and the second profile surface, the first profile surface can be abutted to the stop block, so that the protrusion and one side, far away from the clamping groove, of the clamping strip are separated from the abutting part, the unlocking of the lock tongue is realized, the second profile surface can be abutted to the clamping strip, the lock tongue is separated from the clamping groove of the hook, and the hook is opened.

In padlocks that prevent accidental unlocking according to further embodiments of the present invention, the first and second contoured surfaces are both part of an outer circumferential surface of the cam.

A padlock according to further embodiments of the present invention that prevents accidental unlocking, the cam includes a first cam and a second cam, the first profile surface is disposed on the first cam, and the second profile surface is disposed on the second cam.

According to another embodiment of the padlock of the present invention, the second elastic element is a second compression spring, one end of the second compression spring abuts against the housing main body, and the other end of the second compression spring abuts against a surface of the stopper away from the protrusion.

According to other embodiments of the padlock, one end of the stop is rotatably connected with the housing body, and the second compression spring and the cam are respectively arranged on two opposite sides of the stop.

According to other embodiments of the invention, the padlock further comprises a third elastic element, and the third elastic element can give an elastic force for disengaging the hook from the first lock hole.

According to another embodiment of the invention, the padlock capable of preventing accidental unlocking further comprises a limit screw, the limit screw is fixed on the shell body, a limit groove is axially formed in the first end of the hook, and the limit screw can abut against the side wall of one end of the limit groove.

According to another embodiment of the padlock capable of preventing accidental unlocking, the first end of the clamping hook is circumferentially provided with the annular clamping groove, the annular clamping groove is communicated with the limiting groove, and the limiting screw can abut against the side wall of one side of the annular clamping groove.

A padlock according to some embodiments of the present invention, which may prevent accidental unlocking, further includes a rechargeable battery, and the driving element is a motor, and the rechargeable battery is capable of supplying power to the motor.

According to other embodiments of the present invention, the padlock further comprises a USB interface, and the USB interface is electrically connected to the rechargeable battery.

Drawings

Figure 1 is an exploded view of part of a padlock of a first embodiment;

FIG. 2 is an exploded view of another portion of the padlock of the first embodiment;

FIG. 3 is a front view of the interior of the padlock of the first embodiment;

FIG. 4 is a cross-sectional view taken along section A-A of FIG. 3;

figure 5 is a front view of the interior of the padlock of the second embodiment;

figure 6 is a front view of the interior of the padlock of the third embodiment;

FIG. 7 is a cross-sectional view taken along section B-B of FIG. 6;

figure 8 is a front view of the interior of the padlock of the fourth embodiment;

figure 9 is a front view of the interior of the padlock of the fifth embodiment;

figure 10 is an exploded view of part of the padlock of the fifth embodiment;

figure 11 is a front view of the interior of the padlock of the sixth embodiment.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

First embodiment

Referring to fig. 4 of the drawings, fig. 1 is an exploded view of a portion of the padlock 100 of the first embodiment, fig. 2 is an exploded view of another portion of the padlock 100 of the first embodiment, fig. 3 is a front view of the interior of the padlock 100 of the first embodiment, and fig. 4 is a sectional view taken along a-a of fig. 3. The padlock 100 of the first embodiment includes a hook 110, a locking tongue 120, a switch assembly 130, a first elastic element 140, a third elastic element 150, a fingerprint recognition module 160, a circuit board 170, a rechargeable battery 180, and a housing 190, where the housing 190 includes a pin 191, a housing main body 192, a fixing plate 193, a lining plate 194, a cover plate 195, and a limit screw 196, a first locking hole 411 (refer to fig. 1) is provided on the left side of the upper end of the housing main body 192, a second locking hole 422 (refer to fig. 1) is provided on the right side of the upper end of the housing main body 192, the hook 110 is entirely U-shaped, a first end of the hook 110 (the left end of the hook 110 is a first end) can be inserted into the first locking hole 411, and at the same time, a second end of the hook 110 (the right end of the hook 110 is a second end) can be inserted into the second locking hole 422, so that the hook.

In order to lock the padlock, a locking tongue 120 and a first elastic element 140 are arranged, a clamping groove 111 is arranged at the first end of the hook 110, a sliding groove 413 is arranged on the casing main body 192, and the locking tongue 120 is arranged in the sliding groove 413, so that the locking tongue 120 can slide in the left-right direction relative to the casing main body 192, under the action of the first elastic element 140, after the locking tongue 120 slides in the left direction relative to the casing main body 192, the left end of the locking tongue 120 can be embedded into the clamping groove 111, and therefore the first end of the locking tongue 120 cannot be separated from the first locking hole 411, and the locking function is achieved.

In this embodiment, the first elastic element 140 is a first compression spring, the first compression spring is also disposed in the sliding groove 413, the right end of the latch bolt 120 is provided with the positioning pillar 122, the left end of the first compression spring is sleeved on the positioning pillar 122, so that the first compression spring is prevented from falling off, the left end of the first compression spring abuts against the latch bolt 120, the right end of the first compression spring abuts against the right end face of the sliding groove 413, and therefore the first compression spring provides a leftward elastic force to the latch bolt 120, and the latch bolt 120 can slide leftward relative to the housing main body 192.

In another embodiment, the first elastic element 140 may also be a bellows, which is arranged in the same way as the first compression spring and can also give the locking tongue 120 a leftward elastic force.

In order to unlock the padlock, a switch assembly 130 is provided, the switch assembly 130 includes a driving element 131, a cam 132, a first screw 133, a stopper 134 and a second elastic element 135, the cam 132 is fixed on the output end of the driving element 131, the driving element 131 can drive the cam 132 to rotate, and the cam 132 abuts against the left end of the stopper 134.

The first profile surface 136 and the second profile surface 137 are disposed on the same outer circumferential surface of the cam 132, the lower side surface of the locking tongue 120 is provided with the clamping strip 121, the clamping strip 121 is located on the right side of the cam 132, the cam 132 rotates under the action of the driving element 131, the first profile surface 136 can contact and abut against the clamping strip 121, so that the locking tongue 120 is pushed to move rightwards, and the left end of the locking tongue 120 is separated from the clamping groove 111, so that the padlock is unlocked.

In this embodiment, the driving element 131 is a motor, and the cam 132 is fixed on a rotating shaft of the motor.

In another embodiment, the driving element 131 may be a rotary cylinder, and the cam 132 is fixed on a rotating shaft of the rotary cylinder.

In order to prevent the padlock from being bumped, the latch bolt 120 overcomes the elastic force of the first elastic element 140 under the action of inertia and moves rightwards, the left end of the latch bolt 120 is separated from the clamping groove 111, the padlock is unlocked accidentally, the right end of the stopper 134 is provided with the positioning hole 138, the right end of the stopper 134 is arranged on the shell body 192 through the first screw 133 penetrating through the positioning hole 138, the inner diameter of the positioning hole 138 is larger than the major diameter of the thread of the first screw 133, therefore, the stopper 134 can rotate around a vertical shaft, the cam 132 and the second elastic element 135 are respectively arranged on two sides of the stopper 134, and the second elastic element 135 gives the stopper 134 an elastic force close to the cam 132.

The front side surface of the stop block 134 is provided with a protrusion 138, the protrusion 138 is located on the right side of the clamping strip 121, when the left end of the lock tongue 120 is placed in the clamping groove 111, the protrusion 138 abuts against the clamping strip 121, therefore, the lock tongue 120 cannot move rightwards relative to the shell body 192, the left end of the lock tongue 120 cannot be separated from the clamping groove 111, and at the moment, even if the padlock is impacted, the lock tongue 120 can also clamp the hook 110, so that accidental unlocking of the padlock is prevented.

In order to ensure that the padlock can be unlocked normally, the cam 132 is provided with a second profile surface 137, before the first profile surface 136 contacts the clamping strip 121, the second profile surface 137 contacts and abuts with the left end of the stopper 134, the second profile surface 137 drives the left end of the stopper 134 to move backwards, the protrusion 138 is disengaged and abutted with the right side surface of the clamping strip 121, the locking bolt 120 can move rightwards relative to the housing main body 192, and after the first profile surface 136 contacts the clamping strip 121, the left end of the locking bolt 120 is disengaged from the clamping groove 111, so that unlocking of the padlock is realized.

In this embodiment, the second elastic element 135 is a second compression spring, a rear end of the second compression spring abuts against the housing main body 192, and a front end of the second compression spring abuts against a rear side surface of the stopper 134, so that the second compression spring provides a forward elastic force to the stopper 134.

Like the first elastic member 140, in another embodiment, the second elastic member 135 may be a bellows, which is configured in accordance with the second compression spring, and which may also give the stopper 134 a forward elastic force.

In order to make the hook 110 and the latch tongue 120 disengage from each other, the hook 110 can automatically pop out from the first locking hole 411, a third elastic element 150 is provided, the third elastic element 150 provides an upward elastic force to the first end of the hook 110, and the hook 110 can move upward and automatically pop out under the action of the third elastic element 150.

In this embodiment, the third elastic element 150 is a third compression spring, a lower end of the third compression spring abuts against the housing main body 192, and an upper end of the third compression spring abuts against the first end of the hook 110, so as to provide an upward elastic force to the first end of the hook 110.

In other embodiments, the third elastic element 150 may also be a bellows.

In order to prevent the first end of the hook 110 from popping out of the first locking hole 411, the hook 110 completely breaks away from the housing body 192, the limiting screw 196 is arranged, the fixing plate 193 is locked and fixed on the housing body 192, the fixing plate 193 is provided with a threaded hole, the limiting screw 196 is in threaded fit with the threaded hole, the rear end of the limiting screw 196 penetrates out of the threaded hole, the hook 110 is provided with a limiting groove 112, the limiting groove 112 is arranged along the vertical direction (namely the axial direction of the first end of the hook 110), the rear end of the limiting screw 196 is arranged in the limiting groove 112, when the first end of the hook 110 pops out of the first locking hole 411, the rear end of the limiting screw 196 is abutted against the side wall of the lower end of the limiting groove 112, and therefore the hook 110 is prevented from completely breaking away from the housing.

In order to unlock the door lock, the second end of the hook 110 is spaced from the housing 192 by a larger distance, so that the padlock can be conveniently taken down from the door handle, the first end of the hook 110 is circumferentially provided with the annular groove 113, the annular groove 113 is communicated with the limiting groove 112, when the rear end of the limiting screw 196 abuts against the side wall of the lower end of the limiting groove 112, the hook 110 rotates around the axis of the first end of the hook 110, the rear end of the limiting screw 196 enters the annular groove 113, and the second end of the hook 110 can be gradually far away from the housing 192, so that the padlock can be conveniently taken down.

In order to supply power to the motor, a rechargeable battery 180 is provided, and the rechargeable battery 180 can be electrically connected with the motor so as to drive the rotating shaft of the motor to rotate. In order to enable the motor to obtain unlocking information, the fingerprint identification module 160 and the circuit board 170 are arranged, when the fingerprint identification module 160 identifies correct fingerprints, the motor rotates through a working circuit of the motor, which is connected with the circuit board 170, so that the lock is unlocked, and the fingerprint identification module 160 can adopt a capacitive fingerprint module FS 200P-R.

In order to realize the connection and fixation of the casing main body 192 and the cover plate 195, the lining plate 194 is fixed between the fixing plate 193 and the cover plate 195, the rear side surface of the cover plate 195 is provided with two protruding columns 198, the protruding columns 198 are provided with clamping holes 197 in the vertical direction, the protruding columns 198 are provided with two parts, correspondingly, the two pins 191 are correspondingly arranged, and after passing through the through holes on the casing main body 192, the pins 191 are in interference fit with the clamping holes 197, so that the cover plate 195 is fixed on the casing main body 192.

Second embodiment

Referring to fig. 5, fig. 5 is a front view of the inside of a padlock of a second embodiment, which is similar to the padlock 100 of the first embodiment, except that a locking groove 111 is provided at the right end of the hook 110, and a locking tongue 120 is caught or separated at the right end of the hook 110, thereby locking or unlocking the padlock.

The locking groove 111 is provided at the right end of the hook 110, and can lock or unlock the padlock.

Third embodiment

Referring to fig. 6 and 7, fig. 6 is a front view of the interior of a third embodiment of a padlock 200, and fig. 7 is a cross-sectional view taken along section B-B in fig. 6. Different from the padlock 100 according to the first embodiment of the present invention, the stopper 233 and the housing main body 292 are rotatably connected in different manners, specifically, the left end of the stopper 233 is provided with the abutting column 414, the housing main body 292 is correspondingly provided with a first accommodating hole, the abutting column 414 is disposed in the first accommodating hole, and the abutting column 414 is in clearance fit with the first accommodating hole, so that the stopper 233 can rotate around a vertical axis relative to the housing main body 292.

The front side of the block 233 abuts against the cam 232, the lower side of the right end of the block 233 abuts against the second elastic element 235, the second elastic element 235 provides a forward elastic force to the block 233, the pressing plate 415 is fixedly locked on the housing main body 292, the upper side of the right end of the block 233 can abut against the pressing plate 415 under the action of the second elastic element 235, at this time, the protrusion 238 of the upper side of the right end of the block 233 passes through the pressing plate 415 and can abut against the clamping strip 221, when the second profile surface 237 of the cam 232 abuts against the block 233, the protrusion 238 moves backwards, the protrusion 238 no longer abuts against the clamping strip 221, and the padlock 200 can be unlocked normally.

Fourth embodiment

Referring to fig. 8, fig. 8 is a front view of the inside of a padlock of a fourth embodiment, which is similar to the padlock 200 of the third embodiment, except that a locking groove 111 is provided at the right end of a hook 210, and a locking tongue 220 is caught or separated at the right end of the hook 210, thereby locking or unlocking the padlock.

The locking groove 111 is provided at the right end of the hook 210, and can lock or unlock the padlock.

Fifth embodiment

Referring to fig. 9 and 10, fig. 9 is a front view of the interior of a padlock 300 of a fifth embodiment, and fig. 10 is a view of

The exploded view of part of the padlock 300 of the fifth embodiment differs from the padlock 100 of the first embodiment of the present invention in that the cam 332 comprises a first cam 416 and a second cam 417, the first profile surface 336 is disposed on the first cam 416, the second profile surface 337 is disposed on the second cam 417, and correspondingly, the stop 333 is additionally provided with a contact post 419.

The rear end of the stop block 333 abuts against the second elastic element 334, one end of the second elastic element 334, which is far away from the stop block 333, abuts against the housing main body 292, the second elastic element 334 gives a forward elastic force to the stop block 333, the locking sheet 418 is locked and fixed on the housing main body 392, under the action of the second elastic element 334, the front end of the stop block 333 abuts against the locking sheet 418, the stop block 333 is arranged in the guide groove of the housing main body 392, and the stop block 333 can only slide in the front-back direction in the guide groove.

Therefore, the contact between the second contour surface 337 and the contact post 419 is held, so that the contact post 419 drives the protrusion 338 to move backward, the protrusion 338 is separated from the clip strip 321, and the padlock 200 can be unlocked normally.

Sixth embodiment

Referring to fig. 11, fig. 11 is a front view of the inside of a padlock of a sixth embodiment, which is similar to the padlock 300 of the fifth embodiment, except that a catching groove 111 is provided at the right end of a hook 310 and a locking tongue 320 catches or disengages from the right end of the hook 310, thereby locking or unlocking the padlock.

The locking groove 111 is provided at the right end of the hook 310, and can lock or unlock the padlock.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. A padlock that resists accidental unlocking, comprising:

the lock comprises a shell body, a first lock hole and a second lock hole are formed in the shell body;

the first end of the hook can be inserted into the first lock hole, the second end of the hook can be inserted into the second lock hole, and a clamping groove is formed in the hook;

the spring bolt is provided with a clamping strip and can move relative to the shell body;

the first elastic element is used for enabling one end of the lock tongue to be embedded into the clamping groove under the action of the first elastic element;

the switch assembly comprises a driving element, a cam, a stop block and a second elastic element, wherein a protrusion is arranged on the stop block, the protrusion can be abutted against one side, far away from the clamping groove, of the clamping strip, the second elastic element can give the stop block an elastic force close to the cam, the driving element can drive the cam to rotate, a first profile surface and a second profile surface are arranged on the cam, the first profile surface can be abutted against the stop block, so that the protrusion is disengaged from one side, far away from the clamping groove, of the clamping strip, and the second profile surface can be abutted against the clamping strip, so that the lock tongue is disengaged from the clamping groove.

2. The padlock of claim 1, wherein the first and second contoured surfaces are each an integral part of an outer circumferential surface of the cam.

3. The padlock of claim 1, wherein the cam comprises a first cam and a second cam, the first profile surface is disposed on the first cam, and the second profile surface is disposed on the second cam.

4. The padlock of claim 1, wherein the second resilient element is a second compression spring, one end of the second compression spring abuts against the housing body, and the other end of the second compression spring abuts against a surface of the stop that faces away from the protrusion.

5. The padlock of claim 4, wherein the stop is pivotally connected at one end to the housing body, and the second compression spring and the cam are disposed on opposite sides of the stop.

6. The padlock of claim 1, further comprising a third resilient member capable of imparting a resilient force to the shackle to disengage from the first locking hole.

7. The padlock of claim 6, further comprising a limit screw fixed to the housing body, wherein a limit groove is axially formed at the first end of the hook, and the limit screw can abut against a side wall of one end of the limit groove.

8. The padlock of claim 7, wherein the first end of the hook is circumferentially provided with a circular groove, the circular groove is communicated with the limiting groove, and the limiting screw can abut against the side wall of one side of the circular groove.

9. The padlock of claim 1, further comprising a rechargeable battery, wherein the driving element is a motor, and wherein the rechargeable battery is capable of powering the motor.

10. The padlock of claim 9, further comprising a USB interface, wherein the USB interface is electrically connected to the rechargeable battery.