CN210636937U - Automatic reset passive cam lock - Google Patents

Automatic reset passive cam lock Download PDF

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Publication number
CN210636937U
CN210636937U CN201920895505.7U CN201920895505U CN210636937U CN 210636937 U CN210636937 U CN 210636937U CN 201920895505 U CN201920895505 U CN 201920895505U CN 210636937 U CN210636937 U CN 210636937U
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China
Prior art keywords
cam
lock
key
sleeve
pin
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Application number
CN201920895505.7U
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Chinese (zh)
Inventor
栾光辉
沈艺滨
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Xiamen Make Security Technology Co Ltd
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Xiamen Make Security Technology Co Ltd
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Priority to CN201920895505.7U priority Critical patent/CN210636937U/en
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Abstract

The utility model discloses an automatic passive cam lock resets comprises lock body and key, and the key can insert in the lockhole of lock body. Because the lock body including lock shell, commentaries on classics cover, locking closure, reset spring, pin, lock body PCB, motor, cam, the ejector pad that resets, two contacts of locking, in the lock body, the commentaries on classics cover is installed in the lock shell, lock body PCB, motor, cam etc. are all installed in the commentaries on classics cover inner chamber that locking closure and commentaries on classics cover constitute, have the advantage that the volume is less, simple structure, motor power consumption are little.

Description

Automatic reset passive cam lock
Technical Field
The utility model relates to a tool to lock especially relates to an automatic passive cam lock resets.
Background
Along with the improvement of economic level, electronic lock is widely popularized and used in places such as families, hotels, enterprises and public places. The passive lock is more and more widely applied, and the technical level of the passive lock is more and more mature. However, the current passive lock has the following defects: (1) the existing passive lock is inconvenient to lock; (2) the existing passive lock has large volume, high power consumption and high requirement on the performance of a motor; (3) the existing passive lock needs to be reset by being electrified through a motor; (4) the existing passive lock has the disadvantages of complex structure, higher cost and high requirement on the performance of each part.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic re-setting passive cam lock that simple structure, security are good.
In order to achieve the above object, the technical solution of the present invention is:
the utility model relates to an automatic reset passive cam lock, which comprises a lock body and a key, wherein the key can be inserted into a lock hole of the lock body;
the lock body comprises a lock shell, a rotating sleeve, a lock cover, a reset spring, a pin, a lock body PCB, a motor, a cam, a reset push block, a steel ball, two lock upper contacts and a grounding part; the lock cover is buckled on the rotating sleeve, a rotating sleeve inner cavity is formed between the lock cover and the rotating sleeve, the rotating sleeve and the lock cover which are buckled together are rotatably sleeved in the lock shell, and two conductive holes are formed in the outer end of the rotating sleeve; the cam is fixedly sleeved on an output shaft of the motor, the motor is fixedly sleeved in an inner cavity of the rotary sleeve, the two lock upper contact movable sleeves are arranged in two conductive holes of the rotary sleeve, the outer end of the lock upper contact is opposite to a key hole on the lock shell, the inner end of the lock upper contact is electrically connected with the motor, the reset push block movable sleeve is arranged in the inner cavity of the rotary sleeve and can move back and forth along the longitudinal direction, the outer end face of the reset push block is opposite to the key hole on the lock shell, the inner end of the reset push block is movably sleeved with the cam, the reset spring is arranged between the reset push block and the inner cavity wall of the rotary sleeve, the upper part of the pin is movably sleeved on the lock cover along the transverse direction, the lower end of the pin is abutted against the cam, the pin spring is sleeved on the pin, and two ends of; the steel ball is movably sleeved in the inner cavity of the rotary sleeve, the steel ball is positioned on the side wall of the key hole of the rotary sleeve, the lock body PCB and the grounding are both arranged in the inner cavity of the rotary sleeve, the lock body PCB is electrically connected with the motor and the upper lock contact, and the grounding is collided with the reset push block.
The cam is provided with a cam body, a cam clamping block, a cam limiting block, a cam inclined plane, a cam cylindrical surface and a cam arc groove; the outer end of the cam body is provided with a cam limiting block extending outwards, the outer wall of the cam body is provided with a cam arc groove, the side wall of the cam body is provided with a cam clamping block extending outwards, the inner end of the cam body is a cam inclined plane, and a cam cylindrical surface is arranged on the cam inclined plane in an inwards protruding mode.
The reset push block is an L-shaped component, an arc sleeve is arranged on the inner side wall of the vertical section of the L-shaped component, the end face of the arc sleeve is an inclined plane, and the end face of the arc sleeve is matched with the cam cylindrical surface of the cam.
The utility model also comprises a fixing sheet, a tongue sheet and a tongue sheet nut; the fixing piece is sleeved in the inner cavity of the rotating sleeve and movably sleeved at the outer end of the pin; the tongue piece is fixed and is sleeved at the inner end of the rotating sleeve through a tongue piece nut.
The key comprises a key shell, a key head, a guide sheet, a thimble, a grounding spring, a battery, a grounding elastic sheet, an electrode elastic sheet and a key PCB; the key head is fixed at the front end of the key shell, a steel ball groove capable of allowing a steel ball in the lock body to be clamped is formed in the front end of the key head, the guide piece is movably sleeved in the key head, the ejector pin is movably arranged in the guide hole of the key head in a penetrating mode, the grounding spring is sleeved on the ejector pin, two ends of the grounding spring abut against a flange of the ejector pin and the key shell respectively to form a spring force pushing the ejector pin outwards, the battery is installed in the key shell, the grounding elastic sheet and the electrode elastic sheet are installed on the inner cavity wall of the key shell, and the grounding elastic sheet and the electrode elastic sheet are respectively in contact with two electrodes of the battery and are electrically connected with the key PCB and the two ejector pins through.
After the scheme is adopted, the lock body of the utility model comprises a lock shell, a rotating sleeve, a lock cover, a reset spring, a pin, a lock body PCB, a motor, a cam, a reset push block, a steel ball, two lock upper contacts and a grounding part; the rotating sleeve is arranged in the lock shell, and the lock body PCB, the motor, the cam and the like are all arranged in the rotating sleeve inner cavity formed by the lock cover and the rotating sleeve, so that the lock has the advantages of small volume, simple structure and low power consumption of the motor.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is a perspective exploded view of the lock body of the present invention;
FIG. 3 is a cross-sectional view of the locked state of the present invention;
fig. 4 is a side view of the locked state of the present invention;
fig. 5 is a sectional view showing an unlocked state of the present invention;
fig. 6 is a side view of the unlocked state of the present invention;
fig. 7 is an axonometric view of the reset push block of the utility model;
figure 8 is an isometric view of the cam of the present invention;
fig. 9 is an exploded perspective view of the key of the present invention.
Detailed Description
As shown in fig. 1, the utility model relates to an automatic reset passive cam lock, which comprises a lock body 1 and a key 2. The key 2 can be inserted into the lock hole of the lock body 1.
As shown in fig. 2-6, the lock body 1 includes a lock housing 11, a rotary sleeve 12, a lock cover 13, a return spring 14, a pin spring 15, a pin 16, a return push block 17, a motor 18, a cam 19, a lock body PCB110, a fixing plate 111, a steel ball 112, two lock upper contacts 113, a ground 114, a tongue 115, and a tongue nut 116.
The lock cover 13 is buckled on the rotating sleeve 12, a rotating sleeve inner cavity is formed between the lock cover 13 and the rotating sleeve 12, the rotating sleeve 12 and the lock cover 13 which are buckled together are rotatably sleeved in the lock shell 11, and two conductive holes 121 are formed in the outer end of the rotating sleeve 12; the cam 19 is fixedly sleeved on an output shaft of the motor 18, the motor 18 is fixedly sleeved in an inner cavity of the rotary sleeve, the two lock upper contacts 113 are movably sleeved in the two conductive holes 121 of the rotary sleeve 12, the outer ends of the lock upper contacts 113 are opposite to a key hole on the lock shell 11, the inner ends of the lock upper contacts 113 are electrically connected with the motor 18, the reset push block 17 is movably sleeved in the inner cavity of the rotary sleeve and can move back and forth along the longitudinal direction, the outer end surface of the reset push block 17 is opposite to the key hole on the lock shell 11, the inner end of the reset push block 17 is movably sleeved with the cam 19, the reset spring 14 is arranged between the reset push block 17 and the inner cavity wall of the rotary sleeve, the upper part of the pin 16 is movably sleeved on the lock cover 13 along the transverse direction, the lower end of the pin 16 is abutted against the cam 19, the pin spring 15 is sleeved on the pin 16, and two ends of the pin spring 15 are; the steel ball 112 is movably sleeved in the inner cavity of the rotary sleeve, the steel ball 112 is positioned on the side wall of the key hole of the rotary sleeve 12, the lock body PCB110 and the ground 114 are both arranged in the inner cavity of the rotary sleeve, the lock body PCB110 is electrically connected with the motor 18 and the lock upper contact 113, and the ground 114 is collided with the reset push block 17. The fixing plate 111 is sleeved in the inner cavity of the rotary sleeve, and the fixing plate 111 is movably sleeved at the outer end of the pin 16; the tongue 115 is fixed and sleeved at the inner end of the rotating sleeve 12 through a tongue nut 116.
It should be noted that: the grounding 114 can be in various modes, as long as the key 2 is inserted into the lock body PCB110, the key and the lock body PCB110 can form a loop, for example, a circuit board is replaced to be connected to the lock shell 11, the lock shell 11 can be contacted with the key 2, or the reset push block 17 has a slope in structure, and the key 2 is contacted with the grounding 114 only when inserted into the lock body PCB, so that the key 2 is contacted with the grounding 114, and the key 2 is not always contacted.
As shown in fig. 8, the cam 19 has a cam body 191, a cam dog 192, a cam stopper 193, a cam inclined surface 194, a cam cylindrical surface 195 and a cam circular arc groove 196. The outer end of the cam body 191 is provided with a cam limiting block 193 extending outwards, the outer wall of the cam body 191 is provided with a cam arc groove 196, the side wall of the cam body 191 is provided with a cam clamping block 192 extending outwards, the inner end of the cam body 191 is a cam inclined plane 194, and a cam cylindrical surface 195 is arranged on the cam inclined plane 194 in an inwards protruding mode.
As shown in fig. 7, the reset push block 17 is an L-shaped member, an arc sleeve 172 is disposed on the inner side wall of the vertical section 171 of the L-shaped member, the end surface 172 of the arc sleeve is an inclined surface 173, and the end surface 172 of the arc sleeve cooperates with the cam cylindrical surface 195 of the cam 19 to form two states of engaging and disengaging.
As shown in fig. 9, the key 2 includes a key housing 21, a key head 22, a guide blade 23, a thimble 24, a grounding spring 25, a battery 26, a grounding spring 27, an electrode spring 28, and a key PCB 29. The key head 22 is fixed at the front end of the key shell 21, the front end of the key head 22 is provided with a steel ball groove 221 for clamping a steel ball 112 in the lock body 1, the guide sheet 23 is movably sleeved in the key head 22, the thimble 24 is movably arranged in a guide hole of the key head 22 in a penetrating manner, the grounding spring 25 is sleeved on the thimble 24, two ends of the grounding spring 25 respectively abut against the flange 241 of the thimble 24 and the key shell 21 to form a spring force for pushing the thimble 24 outwards, the battery 26 is arranged in the key shell 21, the grounding elastic sheet 27 and the electrode elastic sheet 28 are both arranged on the inner cavity wall of the key shell 21, and the grounding elastic sheet 27 and the electrode elastic sheet 28 are respectively contacted with two electrodes of the battery 26 and are electrically connected with the key PCB29 and the two thimbles 24 through wires.
The key case 21 is composed of a key top cover 211, a key bottom cover 212 and a cover main body 213; the key top cover 211 and the key bottom cover 212 are fixed to the top and bottom surfaces of the cover main body 213, respectively.
The utility model discloses a theory of operation:
when the key 2 is inserted into the lock body 1, the key head 22 pushes the reset push block 17, and the connection of the grounding end is completed, the grounding 114 and the reset push block 17 always keep colliding, when the reset push block 17 is pushed to the right, the thimble 24 on the key 2 collides with the lock body contact 113, when the reset push block 17 is in the right position, the limit of the inclined plane 194 of the cam 19 on the circular arc sleeve end surface 172 on the reset push block 17 is disabled, the motor 18 is driven after the power supply and signal transmission of the key 2 to the lock body 1 are completed, after the motor 18 drives the cam 19 to rotate 90 degrees, the cam limit block 193 is limited by the limit surface 123 on the rotary sleeve 12, and the cam circular arc groove 196 on the cam 19 is enabled to be aligned with the upper pin 16, so that the limit of the pin 10 is disabled, at this time, the key 2 is rotated to drive the rotary sleeve 12, the pin 16 has free displacement towards the axis because of the limit failure of the cam 19, when the rotary sleeve 12 is rotated, the head of the pin, thereby losing the rotation limit inside the lock and realizing unlocking; when the key 2 is inserted, the steel ball 112 slides into the steel ball groove 221 on the key head 22, and after the key 2 rotates, the steel ball 112 is limited in the steel ball groove 221, so that the key 2 cannot be pulled out; the key 2 rotates back to the initial position, the pin 16 is bounced by the pin spring 15 to reset, meanwhile, the steel ball 112 is limited to be invalid, the key 2 is pulled out, the reset push block 17 is reset by the reset spring 14 in the process of pulling out the key 2, the inclined plane 173 structure on the reset push block 17 is matched with the cam inclined plane 194 structure on the cam 19 to reset the cam 19, the cam 19 is enabled to be effective in limiting the pin 16 after being reset, and the lockset is locked; the arc sleeve 172 on the reset push block 17 is sleeved with the cam cylindrical surface 195 on the cam 19 to ensure that the center of the inclined plane 173 of the reset push block 17 is superposed with the axis of the cam 19; the inner end surface of the cam 19 is overlapped with the vertical section 171 of the reset push block 17 to ensure that the cam 19 cannot be tilted due to the matching relationship between the elastic force of the reset spring 14 and the inclined surface 173; the cam clamping block 192 is matched with the limiting surface 123 of the rotating sleeve 12, so that the condition that the motor 18 cannot be unlocked due to the error in the rotating direction is prevented; the sleeve surface 122 cooperates with the circumferential surface of the motor 4 to prevent the pin 16 from abutting the cam 19 and displacing the cam 19 to cause a false lock when the sleeve 12 is forcibly twisted.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.

Claims (6)

1. The utility model provides an automatic passive cam lock resets which characterized in that: the lock consists of a lock body and a key, wherein the key can be inserted into a lock hole of the lock body;
the lock body comprises a lock shell, a rotating sleeve, a lock cover, a reset spring, a pin, a lock body PCB, a motor, a cam, a reset push block and two lock upper contacts; the lock cover is buckled on the rotating sleeve, a rotating sleeve inner cavity is formed between the lock cover and the rotating sleeve, the rotating sleeve and the lock cover which are buckled together are rotatably sleeved in the lock shell, and two conductive holes are formed in the outer end of the rotating sleeve; the cam is fixedly sleeved on an output shaft of the motor, the motor is fixedly sleeved in an inner cavity of the rotary sleeve, the two lock upper contact movable sleeves are arranged in two conductive holes of the rotary sleeve, the outer end of the lock upper contact is opposite to a key hole on the lock shell, the inner end of the lock upper contact is electrically connected with the motor, the reset push block movable sleeve is arranged in the inner cavity of the rotary sleeve and can move back and forth along the longitudinal direction, the outer end face of the reset push block is opposite to the key hole on the lock shell, the inner end of the reset push block is movably sleeved with the cam, the reset spring is arranged between the reset push block and the inner cavity wall of the rotary sleeve, the upper part of the pin is movably sleeved on the lock cover along the transverse direction, the lower end of the pin is abutted against the cam, the pin spring is sleeved on the pin, and two ends of; the lock body PCB is arranged in the inner cavity of the rotating sleeve and is electrically connected with the motor and the lock upper contact.
2. The automatic-resetting passive cam lock of claim 1, wherein: the device also comprises a steel ball and a grounding part; the steel ball is movably sleeved in the inner cavity of the rotary sleeve, is positioned on the side wall of the key hole of the rotary sleeve, is grounded and is arranged in the inner cavity of the rotary sleeve, and is grounded and collided with the reset push block.
3. The automatic-resetting passive cam lock of claim 1, wherein: the cam is provided with a cam body, a cam clamping block, a cam limiting block, a cam inclined plane, a cam cylindrical surface and a cam arc groove; the outer end of the cam body is provided with a cam limiting block extending outwards, the outer wall of the cam body is provided with a cam arc groove, the side wall of the cam body is provided with a cam clamping block extending outwards, the inner end of the cam body is a cam inclined plane, and a cam cylindrical surface is arranged on the cam inclined plane in an inwards protruding mode.
4. The automatic-resetting passive cam lock of claim 1, wherein: the reset push block is an L-shaped component, an arc sleeve is arranged on the inner side wall of the vertical section of the L-shaped component, the end face of the arc sleeve is an inclined plane, and the end face of the arc sleeve is matched with the cam cylindrical surface of the cam.
5. The automatic-resetting passive cam lock of claim 1, wherein: the tongue piece nut is connected with the fixing piece; the fixing piece is sleeved in the inner cavity of the rotating sleeve and movably sleeved at the outer end of the pin; the tongue piece is fixed and is sleeved at the inner end of the rotating sleeve through a tongue piece nut.
6. The automatic-resetting passive cam lock of claim 1, wherein: the key comprises a key shell, a key head, a guide sheet, a thimble, a grounding spring, a battery, a grounding elastic sheet, an electrode elastic sheet and a key PCB; the key head is fixed at the front end of the key shell, a steel ball groove capable of allowing a steel ball in the lock body to be clamped is formed in the front end of the key head, the guide piece is movably sleeved in the key head, the ejector pin is movably arranged in the guide hole of the key head in a penetrating mode, the grounding spring is sleeved on the ejector pin, two ends of the grounding spring abut against a flange of the ejector pin and the key shell respectively to form a spring force pushing the ejector pin outwards, the battery is installed in the key shell, the grounding elastic sheet and the electrode elastic sheet are installed on the inner cavity wall of the key shell, and the grounding elastic sheet and the electrode elastic sheet are respectively in contact with two electrodes of the battery and are electrically connected with the key PCB and the two ejector pins through.
CN201920895505.7U 2019-06-14 2019-06-14 Automatic reset passive cam lock Active CN210636937U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920895505.7U CN210636937U (en) 2019-06-14 2019-06-14 Automatic reset passive cam lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920895505.7U CN210636937U (en) 2019-06-14 2019-06-14 Automatic reset passive cam lock

Publications (1)

Publication Number Publication Date
CN210636937U true CN210636937U (en) 2020-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920895505.7U Active CN210636937U (en) 2019-06-14 2019-06-14 Automatic reset passive cam lock

Country Status (1)

Country Link
CN (1) CN210636937U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318588A (en) * 2019-06-14 2019-10-11 厦门美科安防科技有限公司 Automatically reset passive cam lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318588A (en) * 2019-06-14 2019-10-11 厦门美科安防科技有限公司 Automatically reset passive cam lock

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Address after: 361000 No.29, houshantou Road, Shenqing Industrial Zone, Guankou Town, Jimei District, Xiamen City, Fujian Province

Patentee after: Xiamen Meike Security Technology Co.,Ltd.

Address before: 361000 No.29, houshantou Road, Shenqing Industrial Zone, Guankou Town, Jimei District, Xiamen City, Fujian Province

Patentee before: XIAMEN MAKE SECURITY TECHNOLOGY Co.,Ltd.