CN210858293U

CN210858293U - Square rod mechanism for electronic lock and electronic lock

Info

Publication number: CN210858293U
Application number: CN201921375581.1U
Authority: CN
Inventors: 陈龙
Original assignee: Hangzhou Ezviz Network Co Ltd
Current assignee: Hangzhou Ezviz Network Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-26
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a square stick mechanism and electronic lock for electronic lock. Based on the utility model, the square bar mechanism can comprise a first square bar and a second square bar which are mutually butted, wherein the first square bar and the second square bar which are mutually butted can realize the integrated assembly of the electronic lock by utilizing the matching of the limiting pin and the limiting convex wing, and can support the electronic lock to adapt to different door leaf opening and closing directions, thereby simplifying the square bar installation operation of the electronic lock; moreover, the first square rod and the second square rod have coaxial rotational freedom, so that the first square rod and the second square rod can still be respectively and independently inserted into the first clutch body and the second clutch body of the electronic lock, and the clutch switching between the first clutch body and the second clutch body is not obstructed. In addition, first square rod and second square rod can realize rigid grafting spacing through spacer pin and spacing convex wing, therefore compare in the spacing mode that utilizes the shell fragment can promote spacing precision.

Description

Square rod mechanism for electronic lock and electronic lock

Technical Field

The utility model relates to an intelligent security technique, in particular to an electronic lock that is used for square stick mechanism of electronic lock and uses this square stick mechanism.

Background

The existing electronic lock can be provided with two clutch square bodies which are in clutch fit, wherein one clutch square body can be in transmission connection with an outdoor side unlocking mechanism (such as a push-pull module) through an outer square rod, and the other clutch square body can be in transmission connection with an indoor side unlocking mechanism (such as a door handle) through an inner square rod.

Since the inner and outer bars are two bar bodies separated from each other, the assembling operation is troublesome at the time of installation. Particularly, for the electronic lock which is adaptive to different door leaf opening and closing directions (opening and closing by pushing and pulling from the left side or opening and closing by pushing and pulling from the right side), the corresponding relations between the two clutch square bodies and the outer square rod and the inner square rod can be interchanged, and at the moment, the inserting positions of the outer square rod and the inner square rod can be further increased in assembly difficulty.

In addition, the insertion of the inner square rod and the outer square rod on the clutch square body depends on the elastic sheet for limiting, so that the limiting accuracy of the insertion size is not high.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a square stick mechanism for electronic lock, include:

the end part of the first square rod is provided with a limiting butt joint shaft, and the peripheral surface of the first square rod is provided with a telescopic limiting pin;

the end part of the second square rod is provided with a limiting butt joint hole, and a limiting convex wing is formed on the periphery of the second square rod;

the limiting butt joint shaft is in limiting socket joint with the limiting butt joint hole, the limiting socket joint provides coaxial rotation freedom for the first square rod and the second square rod, and the limiting socket joint is used for limiting the relative positions of the first square rod and the second square rod in the rotation axis direction in an axial direction so as to restrain the axial distance between the limiting pin and the limiting convex wings.

Optionally, the outer peripheral surface of the limit butt shaft is formed with a shaft groove, and the inner peripheral wall of the limit butt hole is provided with a stamping boss, wherein the stamping boss is accommodated in the shaft groove, and a radial gap and an axial gap are provided between the stamping boss and the shaft groove.

Optionally, a pillow block is further arranged between the end part of the first square rod and the limit butt joint shaft.

Optionally, the first square rod is provided with a limit pin accommodating cavity, a spring is arranged in the limit pin accommodating cavity, and a limit cover is arranged at an opening of the peripheral surface of the first square rod in the limit pin accommodating cavity; the spring generates elastic supporting force towards the outside of the limiting pin accommodating cavity for the limiting pin, and the limiting cover forms outward extending stopping constraint for preventing the limiting pin from moving out of the limiting pin accommodating cavity for the limiting pin.

Optionally, the stopper pin has a guide slope on a side facing away from the second square bar, wherein the guide slope generates a radial pressing force that retracts the stopper pin into the stopper pin receiving cavity against the elastic supporting force in response to an axial pressing external force.

Optionally, the limit cover further forms an inclined plane orientation constraint on the limit pin for keeping the guide inclined plane at the side back to the second square rod.

Optionally, meshing teeth are distributed on the periphery of the limiting cover, and the limiting cover is in limiting fit with the inner wall of the limiting pin accommodating cavity through the meshing teeth.

Optionally, the limit pin comprises a pin body, the pin body is provided with the guide inclined plane and a side limit surface, the limit cover is provided with a pin hole for the pin body to stretch and retract, and the pin hole is provided with a directional hole wall which is in rotation-stopping fit with the side limit surface; the limiting pin further comprises a flange seat, the flange seat is positioned on one side, facing the limiting pin accommodating cavity, of the pin main body, and the flange seat is limited in the limiting pin accommodating cavity by the limiting cover and abuts against the spring; the limiting pin further comprises a pin rod, and the pin rod is located on one side, abutted to the spring, of the flange seat and penetrates through the spring.

Optionally, a stamping groove is formed at the edge of the second square rod, and the limiting convex wing is protruded along the pressure side groove wall of the stamping groove.

Another embodiment of the utility model provides an electronic lock, include:

the lock body comprises a first clutch square body and a second clutch square body, wherein the first clutch square body and the second clutch square body are respectively arranged on two opposite sides of the lock body, and the first clutch square body and the second clutch square body are in transmission connection in a clutchable manner;

the square bar mechanism according to the above embodiment, the square bar mechanism penetrates through the lock body, wherein:

the first square rod is inserted into the first clutch square body, the limiting pin abuts against the end face of the first clutch square body, the second square rod is inserted into the second clutch square body, and the limiting convex wing abuts against the end face of the second clutch square body; or

The second square rod is inserted into the first clutch square body, the limiting convex wing abuts against the end face of the first clutch square body, the first square rod is inserted into the second clutch square body, and the limiting pin abuts against the end face of the second clutch square body.

Based on the above embodiment, the first square bar and the second square bar which are butted with each other can realize integrated assembly of the electronic lock by utilizing the matching of the limiting pin and the limiting convex wing, and can support the electronic lock to adapt to different door leaf opening and closing directions, so that the square bar installation operation of the electronic lock can be simplified; moreover, the first square rod and the second square rod which are mutually butted have coaxial rotation freedom degrees, so that the first square rod and the second square rod can still be respectively and independently inserted into the first clutch body and the second clutch body of the electronic lock, and the clutch switching between the first clutch body and the second clutch body is not obstructed. In addition, the first square rod and the second square rod can realize rigid limit through the limit pin and the limit convex wing in the insertion connection of the first clutch square body and the second clutch square body, so that the limit precision can be improved compared with the limit by utilizing an elastic sheet.

Drawings

The following drawings are only schematic and explanatory and do not limit the scope of the present invention:

fig. 1 is an exploded schematic view of a square bar mechanism for an electronic lock according to an embodiment of the present invention;

fig. 2a and 2b are schematic views of an assembly structure of a square rod mechanism in an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2 b;

fig. 4 is a schematic view of a state of the square bar mechanism in the embodiment of the present invention when it is installed and used;

fig. 5a and 5b are schematic diagrams illustrating an assembling manner of the square bar mechanism in the electronic lock according to the embodiment of the present invention;

fig. 6a and 6b are schematic views illustrating another assembling manner of the square rod mechanism in the electronic lock according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first square bar of the square bar mechanism in the embodiment of the present invention;

fig. 8 is a schematic structural view of a limit pin of the square rod mechanism in the embodiment of the present invention;

fig. 9 is a schematic structural view of a limit cover of the square rod mechanism in the embodiment of the present invention;

fig. 10a and 10b are schematic structural views of a second square bar of the square bar mechanism in the embodiment of the present invention.

Description of the reference numerals

10 first square bar

11 spacing butt joint shaft

110 axle slot

12 spacing pin

120 guide inclined plane

121 pin body

122 side limiting surface

123 flange seat

124 pin rod

13 pillow block

14 limiting pin accommodating cavity

15 spring

16 spring mounting hole

17 limiting cover

170 meshing tooth

171 pin hole

172 oriented bore wall

20 second square bar

21 limit butt joint hole

210 stamping boss

22 limit convex wing

23 stamping groove

30 lock body

31 first clutch square body

32 second clutch square body

40 installation direction indication silk screen

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.

Fig. 1 is an exploded schematic view of a square bar mechanism for an electronic lock according to an embodiment of the present invention. Fig. 2a and 2b are schematic views of an assembly structure of a square rod mechanism in an embodiment of the present invention. Fig. 3 is a cross-sectional view a-a in fig. 2 b. Referring to fig. 1, 2a and 2b and fig. 3, in this embodiment, a square bar mechanism for an electronic lock may include a first square bar 10 and a second square bar 20.

The end of the first square rod 10 is provided with a limit butt shaft 11, and the peripheral surface of the first square rod 10 is provided with a telescopic limit pin 12;

the end of the second square rod 20 is provided with a limit butt hole 21, and the periphery of the second square rod 20 is provided with a limit convex wing 22;

the limit butt joint shaft 11 is in limit socket joint with the limit butt joint hole 21.

Specifically, the outer peripheral surface of the limit docking shaft 11 may form the shaft groove 110, and the inner peripheral wall of the limit docking hole 21 has the stamping boss 210, that is, when the square bar mechanism is actually assembled, the limit docking shaft 11 may be inserted into the limit docking hole 21 without any obstruction, and then the stamping boss 210 may be formed on the second square bar 20 by using a stamping process.

Referring specifically to fig. 3, the stamped boss 210 is received within the shaft slot 110 with radial and axial clearances between the stamped boss 210 and the shaft slot 110. And, the end of the first square bar 10 and the limit butt shaft 11 may further have a pillow block 13, the outer diameter of the pillow block 13 is larger than the inner diameter of the limit butt hole 21, when the limit butt shaft 11 is in limit socket connection with the limit butt hole 21, the pillow block 13 may be located between the end surfaces of the first square bar 10 and the second square bar 20, and separates the end surfaces of the first square bar 10 and the second square bar 20.

The limiting sleeve of the limiting butt-joint shaft 11 and the limiting butt-joint hole 21 can provide a coaxial rotational degree of freedom for the first square rod 10 and the second square rod 20, and the limiting sleeve of the limiting butt-joint shaft 11 and the limiting butt-joint hole 21 can also form axial limiting for the relative position of the first square rod 10 and the second square rod 20 in the direction of the rotation axis, so as to restrict the axial distance between the limiting pin 12 and the limiting convex wing 22.

Fig. 4 is a schematic view of a state of the square bar mechanism in the embodiment of the present invention when the square bar mechanism is installed and used. Fig. 5a and 5b are schematic diagrams illustrating an assembling manner of the square bar mechanism in the electronic lock according to the embodiment of the present invention. Fig. 6a and 6b are schematic views illustrating another assembling manner of the square rod mechanism in the electronic lock according to the embodiment of the present invention. Fig. 5a and 5b are schematic diagrams of a mechanism for mounting a square bar when the electronic lock is adapted to one opening and closing direction of the door leaf, and fig. 6a and 6b are schematic diagrams of a mechanism for mounting a square bar when the electronic lock is adapted to another opening and closing direction.

Please refer to fig. 5a, assembly is started with the first square rod 10 before the second square rod 20 is inserted into the lock body 30, the first square rod 10 is inserted from the second clutch body 32 on one side of the lock body 30, and the limit pin 12 is retracted into the peripheral surface of the first square rod 10 as shown in fig. 4, so that the first square rod 10 passes through the first clutch 31 on the other side of the lock body 30 and drives the second square rod 20 to penetrate into the second clutch body 32; referring to fig. 5b again, after the stop pin 12 moves out of the first clutch 31 on the other side of the lock body 30 along with the first square bar 10, the stop pin 12 can elastically extend out of the circumferential surface of the first square bar 10 and abut against the end surface of the first clutch square body 31, and at this time, the stop protruding wing 22 of the second square bar 20 penetrating into the second clutch square body 32 can abut against the end surface of the second clutch square body 32.

Referring to fig. 6a, still starting the assembly with the first square bar 10 before the second square bar 20 is inserted into the lock body 30, the first square bar 10 can also penetrate through the first clutch square body 31 on one side of the lock body 30, and the stopper pin 12 is also retracted into the peripheral surface of the first square bar 10 as shown in fig. 4, so that the first square bar 10 can penetrate through the second clutch square body 32 on the other side of the lock body 30 and drive the second square bar 20 to penetrate into the first clutch square body 31; referring to fig. 6b again, after the stop pin 12 moves out of the second clutch 32 on the other side of the lock body 30 along with the first square bar 10, the stop pin 12 can elastically extend out of the circumferential surface of the first square bar 10 and abut against the end surface of the second clutch square body 32, and at this time, the stop protruding wing 22 of the second square bar 20 penetrating into the first clutch square body 31 can abut against the end surface of the first clutch square body 31.

Therefore, the cooperation of the limit pin 12 and the limit convex wing 22 can realize the integrated assembly of the square rod mechanism on the electronic lock and support the electronic lock to adapt to different door leaf opening and closing directions. In practical applications, the circumferential surface of the first square bar 10 may be provided with a mounting direction indication screen 40, which may have a direction indication shape, such as a triangle or an arrow, indicating that the first square bar 10 is inserted into the lock body 30 before the second square bar 20 is inserted.

Moreover, the first square bar 10 and the second square bar 20 which are butted with each other have coaxial rotational freedom, and therefore can still be respectively and independently plugged into the first clutch square body 31 and the second clutch square body 32 of the electronic lock, that is, the first square bar 10 and the second square bar 20 can rotate integrally with the first clutch square body 31 and the second clutch square body 32 when the first clutch square body 31 and the second clutch square body 32 are in closed transmission, and can also respectively and independently rotate independently with one of the first clutch square body 31 and the second clutch square body 32 when the first clutch square body 31 and the second clutch square body 32 are separated, so that the clutch switching between the first clutch square body 31 and the second clutch square body 32 is not hindered.

In addition, the insertion of the first square rod 10 and the second square rod 20 in the first clutch square body 31 and the second clutch square body 32 can realize rigid limit through the limit pin 12 and the limit convex wing 22, so that the limit precision can be improved compared with the limit by using an elastic sheet.

For better understanding of the square bar mechanism, the structure of each part will be described in detail below.

Fig. 7 is a schematic structural diagram of a first square bar of the square bar mechanism in the embodiment of the present invention. Fig. 8 is a schematic structural view of a limit pin of the square rod mechanism in the embodiment of the present invention. Fig. 9 is a schematic structural diagram of a limit cover of the square rod mechanism in the embodiment of the present invention. Referring back to fig. 3 in conjunction with fig. 7 to 9, the first square bar 10 may have a limit pin accommodating cavity 14, a spring 15 may be installed in the limit pin accommodating cavity 14 (for example, a spring installation hole 16 for partially accommodating the spring 15 may be opened on a bottom surface of the limit pin accommodating cavity 14), and a limit cover 17 may be installed at an opening of a peripheral surface of the first square bar 10 in the limit pin accommodating cavity 14.

The spring 15 generates an elastic supporting force towards the outside of the pin accommodating cavity 14 for the pin 12, and the limit cover 17 forms an outward stop constraint for preventing the pin 12 from moving out of the pin accommodating cavity 14 for the pin 12.

Also, the stopper pin 12 may have a guide slope 120 on a side facing away from the second square bar 20, wherein the guide slope 120 generates a radial pressing force that retracts the stopper pin 12 into the stopper pin receiving cavity 14 against the elastic supporting force of the spring 15 in response to an axial pressing external force (e.g., an axial force received when the second clutch square 32 is inserted in fig. 5a or when the first clutch square 31 is inserted in fig. 6 a). Accordingly, the spacing cap 17 may form a slope orientation constraint on the spacing pin 12 to keep the guiding slope 120 at the side facing away from the second square bar 20, and, in order to more reliably realize the slope orientation constraint, the circumference of the spacing cap 17 may be distributed with engaging teeth 170, so that the spacing cap 17 may be in spacing fit with the inner wall of the spacing pin receiving cavity 14 through the engaging teeth 170, i.e., the spacing cap 17 realizes self-orientation through the engaging teeth 170.

More specifically, the restraint pin 12 may include a pin body 121, a flange seat 123, and a pin shaft 124, wherein:

the pin body 121 has a guide slope 120 and a side stopper surface 122, the stopper cover 17 has a pin hole 171 through which the pin body 121 extends and retracts, and the pin hole 171 has a directional hole wall 172 which is engaged with the side stopper surface 122 in a rotation-stopping manner;

the flange seat 123 is positioned on one side of the pin body 121 facing the limit pin accommodating cavity 14, and the flange seat 123 is limited in the limit pin accommodating cavity 14 by the limit cover 17 and abuts against the spring 15;

the pin 124 is located on one side of the flange seat 123 abutting the spring 15 and is inserted through the spring 15.

Fig. 10a and 10b are schematic structural views of a second square bar of the square bar mechanism in the embodiment of the present invention. Referring to fig. 10a and 10b, the position-limiting protruding wings 22 may also be formed by a punching process like the punching bosses 210, and accordingly, the edges of the second square bar 20 may be formed with punching grooves 23, and the position-limiting protruding wings 22 protrude along the pressure-side groove walls of the punching grooves 23.

In another embodiment, an electronic lock is provided that includes a lock body 30 and a square bar mechanism as described in the previous embodiments.

The lock body comprises a first clutch square body 31 and a second clutch square body 32, the first clutch square body 31 and the second clutch square body 32 are respectively arranged on two opposite sides of the lock body 30, and the first clutch square body 31 and the second clutch square body 32 are in transmission connection in a clutchable mode;

the square bar mechanism described in the previous embodiment may extend through the lock body 30 and:

like the manner shown in fig. 5a and 5b, the first square bar 10 is inserted into the first clutch square body 31, and the limit pin 12 abuts against the end surface of the first clutch square body 31, the second square bar 20 is inserted into the second clutch square body 32, and the limit protruding wing 22 abuts against the end surface of the second clutch square body 32;

alternatively, as shown in fig. 6a and 6b, the second square bar 20 is inserted into the first clutch square 31, the limit protruding wing 22 abuts against the end surface of the first clutch square 31, the first square bar 10 is inserted into the second clutch square 32, and the limit pin 12 abuts against the end surface of the second clutch square 32.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A square bar mechanism for an electronic lock, comprising:

the device comprises a first square rod (10), wherein a limit butt joint shaft (11) is arranged at the end part of the first square rod (10), and a telescopic limit pin (12) is arranged on the peripheral surface of the first square rod (10);

the end part of the second square rod (20) is provided with a limiting butt joint hole (21), and a limiting convex wing (22) is formed on the periphery of the second square rod (20);

the limiting butt joint shaft (11) is in limiting socket joint with the limiting butt joint hole (21), the limiting socket joint provides coaxial rotation freedom degrees for the first square rod (10) and the second square rod (20), and the limiting socket joint forms axial limiting for the relative positions of the first square rod (10) and the second square rod (20) in the direction of the rotation axis so as to restrain the axial distance between the limiting pin (12) and the limiting convex wing (22).

2. The square bar mechanism according to claim 1, wherein the outer peripheral surface of the limit abutment shaft (11) is formed with a shaft groove (110), the inner peripheral wall of the limit abutment hole (21) has a stamped boss (210), wherein the stamped boss (210) is received in the shaft groove (110), and wherein a radial clearance and an axial clearance are provided between the stamped boss (210) and the shaft groove (110).

3. The square bar mechanism according to claim 1, characterized in that there is further a pillow block (13) between the end of the first square bar (10) and the limit butt axle (11).

4. The square bar mechanism of claim 1,

the first square rod (10) is provided with a limiting pin accommodating cavity (14), a spring (15) is arranged in the limiting pin accommodating cavity (14), and a limiting cover (17) is arranged at an opening of the peripheral surface of the first square rod (10) in the limiting pin accommodating cavity (14);

the spring (15) generates elastic supporting force towards the outside of the limiting pin accommodating cavity (14) for the limiting pin (12), and the limiting cover (17) forms an outward extending stop constraint for preventing the limiting pin (12) from moving out of the limiting pin accommodating cavity (14) for the limiting pin (12).

5. The square bar mechanism according to claim 4, wherein the stopper pin (12) has a guide slope (120) on a side facing away from the second square bar (20), wherein the guide slope (120) generates a radial pressing force that retracts the stopper pin (12) into the stopper pin receiving cavity (14) against the elastic support force in response to an axial pressing external force.

6. Square bar mechanism according to claim 5, wherein the stop cap (17) further forms a ramp orientation constraint on the stop pin (12) that keeps the guide ramp (120) on the side facing away from the second square bar (20).

7. The square bar mechanism according to claim 6, wherein meshing teeth (170) are distributed on the periphery of the limiting cover (17), and the limiting cover (17) is in limiting fit with the inner wall of the limiting pin accommodating cavity (14) through the meshing teeth (170).

8. The square bar mechanism of claim 6,

the limit pin (12) comprises a pin body (121), the pin body (121) is provided with the guide inclined surface (120) and a side limit surface (122), the limit cover (17) is provided with a pin hole (171) for the pin body (121) to stretch and retract, and the pin hole (171) is provided with an oriented hole wall (172) which is in rotation-stopping fit with the side limit surface (122);

the limiting pin (12) further comprises a flange seat (123), the flange seat (123) is positioned on one side of the pin main body (121) facing the limiting pin accommodating cavity (14), and the flange seat (123) is limited in the limiting pin accommodating cavity (14) by the limiting cover (17) and is abutted against the spring (15);

the limiting pin (12) further comprises a pin rod (124), and the pin rod (124) is located on one side, abutted to the spring (15), of the flange seat (123) and penetrates through the spring (15).

9. The square bar mechanism according to claim 1, wherein a punching groove (23) is formed at an edge of the second square bar (20), and the limiting convex wing (22) is protruded along a pressure side groove wall of the punching groove (23).

10. An electronic lock, comprising:

a lock body (30) comprising a first clutch square (31) and a second clutch square (32), wherein the first clutch square (31) and the second clutch square (32) are respectively arranged on two opposite sides of the lock body (30), and the first clutch square (31) and the second clutch square (32) are in driving connection in a clutchable manner;

the square bar mechanism of any of claims 1-9, which extends through the lock body (30), wherein:

the first square rod (10) is inserted into the first clutch square body (31), the limiting pin (12) abuts against the end face of the first clutch square body (31), the second square rod (20) is inserted into the second clutch square body (32), and the limiting convex wing (22) abuts against the end face of the second clutch square body (32); or

The second square rod (20) is inserted into the first clutch square body (31), the limiting convex wing (22) abuts against the end face of the first clutch square body (31), the first square rod (10) is inserted into the second clutch square body (32), and the limiting pin (12) abuts against the end face of the second clutch square body (32).