Electric push-pull lock

By adopting a compact electric push-pull lock design in the push-pull lock, using the drive shaft, clutch pin and arc surface structure, the problem of the existing push-pull lock complex structure and the user cannot open the door when the palm is empty is not available, achieving the effect of compact and convenient use.

CN222632997UActive Publication Date: 2025-03-18ZHONGSHAN META INTELLIGENCE CO LTD
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Patent Information

Application Number
CN202420620900.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-27
Publication Date
2025-03-18
Estimated Expiration
2034-03-27

AI Technical Summary

Technical Problem

The existing push and zipper locks have complex structures and users cannot open the door when their palms are not available.

Method used

A compact electric push-pull lock is designed, adopting a drive shaft, clutch pin and arc surface structure. The clutch pin is driven into the bonding groove through an electric device to realize the rotation of the lock body, avoiding the clutch pin interfering with other parts, and improving structural compactness.

Benefits of technology

It realizes a compact and small electric push-pull lock, which allows users to open and lock the door with their arms tamping the front handle, improving the convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric push-pull lock which comprises a front lock body, a front handle, a rear lock body and a rear handle. One end of the connecting rod is connected with the rear handle and the other end is provided with a first shaft sleeve; one end of the driving shaft is rotatably arranged in the first shaft sleeve, the other end of the driving shaft is connected with the front handle, and a combination groove is formed in the side portion of the driving shaft; the clutch pin is movably arranged at the side part of the first shaft sleeve in a penetrating manner so as to enter and exit from the combination groove, and the clutch pin is connected with a first elastic piece for driving the clutch pin to be separated from the combination groove; the driving piece is connected with an electric device capable of pushing the clutch pin to enter the combination groove, and the driving piece is provided with an arc surface abutting against one end of the clutch pin; wherein the driving shaft drives the first shaft sleeve and the connecting rod to rotate through the clutch pin, the clutch pin can move back and forth along the arc surface and keeps extending into the combination groove, the arrangement of the arc surface can prevent the clutch pin from interfering with other parts in the rotating process, and improvement of the structure compactness and reduction of the number of parts and the size of the push-pull lock are facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to an electric push-pull lock. Background Art

[0002] The push-pull lock can be opened by gently pushing or pressing the handle outdoors, and by simply pulling the handle indoors. Compared with the traditional rotating handle, it is more in line with people's behavior habits. Among them, the push-pull lock includes a front lock body, a rear lock body and a connecting rod. The handle drives the connecting rod to rotate through the transmission structure, thereby driving the lock tongue assembly to open the door. In order to realize the functions of electric unlocking and / or mechanical unlocking, it is necessary to set a clutch mechanism inside the front lock body. Since the transmission structure between the handle and the connecting rod is relatively complex, the use of a conventional clutch mechanism requires a large enough space to meet the action stroke of the clutch mechanism, which further complicates the structure of the push-pull lock.

[0003] In addition, the general unlocking method of the push-pull lock is to push left or right to unlock the handle, and the user cannot open the door when the palm is not free. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an electric push-pull lock with a simple and compact structure and a small volume.

[0005] According to an embodiment of the utility model, an electric push-pull lock comprises: a front lock body, the front lock body is rotatably provided with a front handle, and a first cavity is provided inside the front lock body; a rear lock body, the rear lock body is rotatably provided with a rear handle; a connecting rod, rotatably provided between the front lock body and the rear lock body, one end of the connecting rod is connected to the rear handle, and the other end of the connecting rod is provided with a first shaft sleeve extending into the first cavity; a driving shaft, one end of which is rotatably provided in the first shaft sleeve, and the other end is connected to the front handle, and the side part of the end of the driving shaft located in the first shaft sleeve is provided with a coupling groove; a clutch pin, movably passed through the The side of the first sleeve is capable of entering and exiting the combining groove, one end of the clutch pin extends out of the first sleeve, and the clutch pin is connected to a first elastic member that drives it to be separated from the combining groove; a driving member is arranged in the first cavity, and the driving member is connected to an electric device that can push the clutch pin into the combining groove, and the driving member has an arc surface that abuts against the end of the clutch pin extending out of the first sleeve; wherein, the driving shaft drives the first sleeve and the connecting rod to rotate through the clutch pin, and the clutch pin can move back and forth along the arc surface and remain extended into the combining groove.

[0006] An electric push-pull lock according to an embodiment of the utility model has at least the following beneficial effects:

[0007] When the electric push-pull lock of the above structure is locked, the clutch pin is separated from the coupling groove under the action of the first elastic member, and the driving shaft idles relative to the first sleeve when the front handle is rotated; when unlocking, the electric device drives the driving member to move to push the clutch pin into the coupling groove, and the clutch pin, the first sleeve and the driving shaft rotate as a whole relative to the front lock body. The setting of the arc surface can prevent the clutch pin from interfering with other parts during the rotation process, which helps to improve the compactness of the structure and reduce the number of components and the volume of the push-pull lock.

[0008] In some embodiments of the utility model, the driving member is arranged in the front lock body by rotating through a first pivot parallel to the connecting rod, the driving member has an arc plate, the arc surface is located on the inner surface of the arc plate, the electric device includes an electric push rod, and the output end of the electric push rod is connected to a shift block that abuts against the outer surface of the arc plate to drive the arc surface to push the clutch pin into the engaging groove.

[0009] In some embodiments of the utility model, a guide protrusion is protruding from the outer surface of the arc plate, and the guide protrusion has a first inclined surface and a second inclined surface arranged opposite to each other, and the second inclined surface is adjacent to the end of the arc plate and forms a limiting groove between the end of the arc plate, and the shift block enters the limiting groove to keep the clutch pin entering the engaging groove.

[0010] In some embodiments of the utility model, the driving member is provided with a driving arm, and the driving arm and the arc plate are respectively located on both sides of the first pivot, and the front lock body is slidably provided with a slider member capable of acting on the driving arm to make the arc plate swing toward the clutch pin, and a second elastic member is provided between the driving arm and one end of the slider member, and a mechanical lock core is provided in the first cavity, and an eccentric portion is provided at the output end of the mechanical lock core, and the eccentric portion abuts against the other end of the slider member to be able to push the driving member to rotate around the first pivot.

[0011] In some embodiments of the present invention, the drive shaft and the first sleeve are located in the middle of the front lock body, the clutch pin is orthogonal to the drive shaft, and the electric push rod, the drive member, the slider member and the mechanical lock core are arranged in sequence around the outer periphery of the first sleeve.

[0012] In some embodiments of the present invention, after the clutch pin enters the coupling groove, the center of the arc surface is located on the axis of the drive shaft.

[0013] In some embodiments of the utility model, a square countersunk hole for fixing the connecting rod and a circular countersunk hole for rotationally connecting one end of the driving shaft are respectively formed at both ends of the first sleeve, a channel groove connecting the circular countersunk hole and the outside is provided on the side of the first sleeve, an expansion hole portion extending along its length direction is provided in the middle of the channel groove, a limiting ring that can reciprocate in the expansion hole portion is provided in the middle of the clutch pin, the first elastic member is located between the limiting ring and the expansion hole portion, the clutch pin is penetrated along the length direction of the channel groove, the channel groove has an opening facing away from the square countersunk hole, and the first sleeve is equipped with a cover plate for closing the opening of the channel groove.

[0014] In some embodiments of the utility model, a first gear is provided at one end of the drive shaft extending from the first sleeve, a first rack meshing with the first gear is slidably provided in the front lock body in the vertical direction, a second rack arranged in the vertical direction and orthogonal to the first rack is fixedly provided on the side wall of the first rack, the front handle is rotatably connected to the front lock body via a transversely placed second pivot, and the front handle is fixedly provided with a second gear arranged around the second pivot and meshing with the second rack.

[0015] In some embodiments of the utility model, the front lock body includes a cover body with an opening and a mounting plate that closes the opening of the cover body, the first cavity is defined between the mounting plate and the cover body, the first gear, the first rack and the second rack are all located in the first cavity, two spaced side ears are provided on the side of the cover body away from the mounting plate, the second pivot is passed through the two side ears, the cover body is provided with a clearance hole for the second gear to extend into the first cavity, the second gear is provided with a connecting plate parallel to the second pivot, and the front handle is fixedly connected to the connecting plate.

[0016] In some embodiments of the utility model, a fingerprint recognition module and a password disk are provided on the front handle, and both the fingerprint recognition module and the password disk are electrically connected to a control unit, and the control unit is connected to the electric device.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the electric push-pull lock of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the internal structure of the front lock body of the embodiment;

[0021] Figure 3 for Figure 1 Schematic diagram of the structural decomposition of the embodiment with the rear lock body and rear handle removed.

[0022] Reference numerals:

[0023] Front lock body 100; cover body 110; mounting plate 120; side ear portion 111; clearance hole 112; front handle 200; second pivot 210; rear lock body 300; rear handle 310; connecting rod 400; first sleeve 410; circular countersunk hole 412; channel groove 413; expansion hole portion 414; cover plate 415; drive shaft 510; coupling groove 511; first gear 520; first rack 530; second rack 540; second gear 550; Connecting plate 551; clutch pin 600; first elastic member 610; limiting ring 620; driving member 700; arc surface 710; arc plate 720; guiding protrusion 730; first inclined surface 731; second inclined surface 732; driving arm 740; sliding block member 750; second elastic member 760; mechanical lock cylinder 770; eccentric portion 771; electric device 800; electric push rod 810; dial block 820; fingerprint recognition module 910; password disk 920. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the utility model, if there is a description of first, second, third, fourth, fifth, etc., it is only for the purpose of distinguishing the technical features and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0028] Reference Figures 1 to 3 , an electric push-pull lock according to an embodiment of the utility model comprises: a front lock body 100, on which a front handle 200 is rotatably provided, and a first cavity is provided inside the front lock body 100; a rear lock body 300, on which a rear handle 310 is rotatably provided; a connecting rod 400, rotatably provided between the front lock body 100 and the rear lock body 300, one end of the connecting rod 400 is connected to the rear handle 310, and the other end of the connecting rod 400 is provided with a first shaft sleeve 410 extending into the first cavity; a driving shaft 510, one end of which is rotatably provided in the first shaft sleeve 410, and the other end of which is connected to the front handle 200, and a side portion of one end of the driving shaft 510 located in the first shaft sleeve 410 is provided with a coupling groove 511; a clutch pin 600, which is movably provided in the first shaft sleeve 410. The side of the sleeve 410 is capable of entering and exiting the coupling groove 511, one end of the clutch pin 600 extends out of the first sleeve 410, and the clutch pin 600 is connected to a first elastic member 610 that drives it to separate from the coupling groove 511; a driving member 700 is arranged in the first cavity, and the driving member 700 is connected to an electric device 800 that can push the clutch pin 600 into the coupling groove 511, and the driving member 700 has an arc surface 710 that abuts against one end of the clutch pin 600 extending out of the first sleeve 410; wherein, the driving shaft 510 drives the first sleeve 410 and the connecting rod 400 to rotate through the clutch pin 600, and the clutch pin 600 can move back and forth along the arc surface 710 and remain extended into the coupling groove 511.

[0029] When the electric push-pull lock of the above structure is locked, the clutch pin 600 is separated from the coupling groove 511 under the action of the first elastic member 610, and the driving shaft 510 idles relative to the first sleeve 410 when the front handle 200 is rotated; when the electric device 800 drives the driving member 700 to move to push the clutch pin 600 into the coupling groove 511, and the clutch pin 600, the first sleeve 410 and the driving shaft 510 rotate as a whole relative to the front lock body 100. The setting of the arc surface 710 can not only keep one end of the clutch pin 600 always extending into the coupling groove 511, but also avoid the clutch pin 600 from interfering with other parts during the rotation process, which helps to improve the compactness of the structure and reduce the number of components and the volume of the push-pull lock.

[0030] See also Figure 2 and Figure 3 In some embodiments of the utility model, the driving member 700 is arranged in the front lock body 100 by rotating through a first pivot parallel to the connecting rod 400, the driving member 700 has a circular arc plate 720, the circular arc surface 710 is located on the inner surface of the circular arc plate 720, the electric device 800 includes an electric push rod 810, the output end of the electric push rod 810 is connected to a shifting block 820 that abuts against the outer surface of the circular arc plate 720 to drive the circular arc surface 710 to push the clutch pin 600 into the coupling groove 511, wherein the shifting block 820 is arranged obliquely relative to the telescopic direction of the electric push rod 810. The above structure helps to realize the unlocking and locking of the push-pull lock with a very simple structure. It can be understood that when the electric device 800 is used to unlock the door, the output end of the electric push rod 810 drives the shift block 820 to move in a direction away from the first pivot, and the shift block 820 abuts against the outer surface of the arc plate 720 and drives the arc plate 720 to rotate, thereby driving the arc surface 710 to abut against one end of the clutch pin 600 to push the other end of the clutch pin 600 into the coupling groove 511. At this time, the first elastic member 610 is compressed, and the clutch pin 600, the first sleeve 410 and the drive shaft 510 are connected together. When the front handle 200 is rotated, the front handle 200 can drive the drive shaft 510 to rotate, thereby driving the connecting rod 400 to rotate. The rotation of the connecting rod 400 can drive the lock tongue assembly to retract to open the door. When the push-pull lock is locked, the output end of the electric push rod 810 drives the shift block 820 to reset and move toward the direction close to the first pivot, and the first elastic member 610 restores its elastic deformation to drive the driving member 700 to reset and rotate, so that the clutch pin 600 can be disengaged from the coupling groove 511. When the front handle 200 is rotated, the driving shaft 510 idles relative to the first sleeve 410 to lock the door.

[0031] See also Figure 2In some embodiments of the utility model, the outer surface of the arc plate 720 is protruded with a guide protrusion 730, and the guide protrusion 730 has a first inclined surface 731 and a second inclined surface 732 disposed opposite to each other, and the second inclined surface 732 is adjacent to the end of the arc plate 720 and forms a limiting groove with the end of the arc plate 720, and the shift block 820 enters the limiting groove to keep the clutch pin 600 entering the coupling groove 511. It should be noted that when the clutch pin 600 moves along the arc surface 710, it is easy to cause the position of the driving member 700 to be unstable. After the shift block 820 passes through the first inclined surface 731 and the second inclined surface 732 in sequence and enters the limiting groove, it is conducive to keeping the depth position of the clutch pin 600 extending into the coupling groove 511 unchanged.

[0032] See also Figure 2 In some embodiments of the utility model, the driving member 700 is provided with a driving arm 740, and the driving arm 740 and the arc plate 720 are respectively located on both sides of the first pivot. The front lock body 100 is slidably provided with a slider member 750 in the first cavity, which can act on the driving arm 740 to make the arc plate 720 swing toward the clutch pin 600. A second elastic member 760 is provided between the driving arm 740 and one end of the slider member 750. A mechanical lock core 770 is provided in the first cavity, and an eccentric portion 771 is provided at the output end of the mechanical lock core 770. The eccentric portion 771 abuts against the other end of the slider member 750 to push the driving member 700 to rotate around the first pivot. It can be understood that when the electric device 800 is powered off, the user can still unlock the car through the mechanical lock cylinder 770, wherein the user inserts the key and rotates the mechanical lock cylinder 770. The rotation of the eccentric portion 771 can push the sliding member to move in the direction of compressing the second elastic member 760. The second elastic member 760 acts on the drive arm 740 to drive the drive member 700 to rotate around the first pivot, thereby driving the arc plate 720 to swing toward the direction of the clutch pin 600. The arc surface 710 abuts against one end of the clutch pin 600 to push the other end of the clutch pin 600 into the coupling groove 511, thereby finally unlocking the car.

[0033] See also Figure 2 In some embodiments of the utility model, in order to maximize the space utilization of the first cavity to reduce the volume of the electric push-pull lock, the drive shaft 510 and the first sleeve 410 are located in the middle of the front lock body 100, the clutch pin 600 is orthogonal to the drive shaft 510, and the electric push rod 810, the drive member 700, the slider member 750 and the mechanical lock core 770 are arranged in sequence around the outer periphery of the first sleeve 410.

[0034] See also Figure 2In some embodiments of the utility model, after the clutch pin 600 enters the coupling groove 511, the center of the arc surface 710 is located on the axis of the drive shaft 510. At this time, when the clutch pin 600 rotates following the first sleeve 410 and the drive shaft 510, the position of the clutch pin 600 along the depth direction of the coupling groove 511 will not change, which is beneficial to the stability of the unlocking function. Of course, in other embodiments, when the center of the arc surface 710 is not located on the axis of the drive shaft 510, because the shift block 820 abuts against the arc plate 720, when the clutch pin 600 rotates following the first sleeve 410 and the drive shaft 510, the clutch pin 600 will move back and forth along the telescopic direction of the first elastic member 610, but it is necessary to ensure that the end of the clutch pin 600 is always located in the coupling groove 511.

[0035] See also Figure 2 In some embodiments of the utility model, a square countersunk hole for fixing the connecting rod 400 and a circular countersunk hole 412 for rotationally connecting one end of the driving shaft 510 are respectively formed at both ends of the first sleeve 410, a channel groove 413 for connecting the circular countersunk hole 412 with the outside is provided on the side of the first sleeve 410, a hole expansion portion 414 extending along its length direction is provided in the middle of the channel groove 413, a limiting ring 620 that can reciprocate in the hole expansion portion 414 is provided in the middle of the clutch pin 600, the first elastic member 610 is located between the limiting ring 620 and the hole expansion portion 414, the clutch pin 600 is penetrated along the length direction of the channel groove 413, the channel groove 413 has an opening away from the square countersunk hole, and the first sleeve 410 is installed with a cover plate 415 for closing the opening of the channel groove 413. It can be understood that the channel groove 413 has an opening to facilitate the processing and forming of the reaming portion 414, and also to facilitate the assembly of the clutch pin 600 and the first elastic member 610. During assembly, ensure that the coupling groove 511 is opposite to one end of the channel groove 413. The movement of the limiting ring 620 in the length direction of the reaming portion 414 can prevent the clutch pin 600 from detaching from the first sleeve 410, and can also limit the displacement of the clutch pin 600 into the coupling groove 511.

[0036] See also Figure 2 and Figure 3In some embodiments of the utility model, a first gear 520 is provided at one end of the drive shaft 510 extending from the first sleeve 410, a first rack 530 meshing with the first gear 520 is slidably provided in the front lock body 100 along the vertical direction, a second rack 540 arranged along the vertical direction and orthogonal to the first rack 530 is fixedly provided on the side wall of the first rack 530, the front handle 200 is rotatably connected to the front lock body 100 through a horizontally placed second pivot 210, and the front handle 200 is fixedly provided with a second gear 550 arranged around the second pivot 210 and meshing with the second rack 540. Specifically, when the front handle 200 rotates downward around the second pivot 210 relative to the front lock body 100, the second gear 550 drives the second rack 540 and the first rack 530 to slide upward together. When the first rack 530 slides upward, it drives the first gear 520 to rotate, thereby driving the drive shaft 510 to rotate. That is, the rotation of the connecting rod 400 is achieved by swinging the front handle 200 up and down, providing a method of rotating the front handle 200 that is different from the traditional method, and is suitable for use scenarios where the user can only use the arm to move the front handle 200 when the palm of the user is not free.

[0037] See also Figure 3 In some embodiments of the utility model, the front lock body 100 includes a cover body 110 with an opening and a mounting plate 120 closing the opening of the cover body 110, the mounting plate 120 and the cover body 110 define the first cavity, the first gear 520, the first rack 530 and the second rack 540 are all located in the first cavity, the cover body 110 is provided with two spaced side ears 111 on a side away from the mounting plate 120, the second pivot 210 is passed through the two side ears 111, the cover body 110 is provided with a clearance hole 112 for the second gear 550 to extend into the first cavity, the second gear 550 is provided with a connecting plate 551 parallel to the second pivot 210, and the front handle 200 is fixedly connected to the connecting plate 551. The front lock body 100 with the above structure is convenient for production, processing and assembly. The first pivot may be formed on the mounting plate 120 or the inner wall of the cover 110 , for example, the first pivot and the cover 110 are an integral plastic structure.

[0038] See also Figure 1 and Figure 3 In some embodiments of the utility model, in order to enrich the means of verifying the user's identity information, a fingerprint recognition module 910 and a password disk 920 are provided on the front handle 200, and the fingerprint recognition module 910 and the password disk 920 are both electrically connected to the control unit, and the control unit is connected to the electric device 800. When the user's fingerprint or password is verified, the control unit controls the electric device 800 to operate so that the clutch pin 600 enters the coupling groove 511.

[0039] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An electric push-pull lock, characterized in that: include: A front lock body (100), wherein the front lock body (100) is rotatably provided with a front handle (200), and a first cavity is provided inside the front lock body (100); A rear lock body (300), wherein the rear lock body (300) is rotatably provided with a rear handle (310); A connecting rod (400) is rotatably disposed between the front lock body (100) and the rear lock body (300), one end of the connecting rod (400) is connected to the rear handle (310), and the other end of the connecting rod (400) is provided with a first shaft sleeve (410) extending into the first cavity; A drive shaft (510), one end of which is rotatably disposed in the first sleeve (410), and the other end of which is connected to the front handle (200), and a coupling groove (511) is provided on the side of one end of the drive shaft (510) located in the first sleeve (410); a clutch pin (600) movably inserted into the side of the first sleeve (410) so as to be able to enter and exit the coupling groove (511); one end of the clutch pin (600) extends out of the first sleeve (410); and the clutch pin (600) is connected to a first elastic member (610) for driving the clutch pin (600) to be separated from the coupling groove (511); A driving member (700) is disposed in the first cavity, the driving member (700) is connected to an electric device (800) capable of pushing the clutch pin (600) into the coupling groove (511), and the driving member (700) has an arc surface (710) abutting against an end of the clutch pin (600) extending out of the first shaft sleeve (410); The driving shaft (510) drives the first sleeve (410) and the connecting rod (400) to rotate via the clutch pin (600), and the clutch pin (600) can reciprocate along the arc surface (710) and remain extended into the coupling groove (511).

2. The electric push-pull lock according to claim 1, characterized in that: The driving member (700) is arranged in the front lock body (100) by rotating through a first pivot parallel to the connecting rod (400), the driving member (700) has a circular arc plate (720), the circular arc surface (710) is located on the inner surface of the circular arc plate (720), the electric device (800) includes an electric push rod (810), the output end of the electric push rod (810) is connected to a shifting block (820) that abuts against the outer surface of the circular arc plate (720) to drive the circular arc surface (710) to push the clutch pin (600) into the engaging groove (511).

3. The electric push-pull lock according to claim 2, characterized in that: The outer surface of the circular arc plate (720) is protrudingly provided with a guiding protrusion (730), and the guiding protrusion (730) has a first inclined surface (731) and a second inclined surface (732) arranged opposite to each other, and the second inclined surface (732) is adjacent to the end of the circular arc plate (720) and forms a limiting groove with the end of the circular arc plate (720), and the shift block (820) enters the limiting groove to keep the clutch pin (600) entering the engaging groove (511).

4. The electric push-pull lock according to claim 2, characterized in that: The driving member (700) is provided with a driving arm (740), and the driving arm (740) and the arc plate (720) are respectively located on both sides of the first pivot. The front lock body (100) is slidably provided with a slider member (750) in the first cavity, which can act on the driving arm (740) to make the arc plate (720) swing toward the clutch pin (600). A second elastic member (760) is provided between the driving arm (740) and one end of the slider member (750). A mechanical lock core (770) is provided in the first cavity, and an eccentric portion (771) is provided at the output end of the mechanical lock core (770). The eccentric portion (771) abuts against the other end of the slider member (750) to push the driving member (700) to rotate around the first pivot.

5. The electric push-pull lock according to claim 4, characterized in that: The drive shaft (510) and the first sleeve (410) are located in the middle of the front lock body (100), the clutch pin (600) is orthogonal to the drive shaft (510), and the electric push rod (810), the drive member (700), the slider member (750) and the mechanical lock core (770) are sequentially arranged around the outer periphery of the first sleeve (410).

6. The electric push-pull lock according to claim 1, characterized in that: After the clutch pin (600) enters the coupling groove (511), the center of the arc surface (710) is located on the axis of the drive shaft (510).

7. The electric push-pull lock according to claim 1, characterized in that: The two ends of the first sleeve (410) are respectively formed with a square countersunk hole for fixing the connecting rod (400) and a circular countersunk hole (412) for rotationally connecting one end of the driving shaft (510); the side of the first sleeve (410) is provided with a channel groove (413) for connecting the circular countersunk hole (412) with the outside; the middle of the channel groove (413) is provided with a reamer portion (414) extending along its length direction; the middle of the clutch pin (600) is provided with a A limit ring (620) is reciprocatingly movable in the reaming portion (414); the first elastic member (610) is located between the limit ring (620) and the reaming portion (414); the clutch pin (600) is penetrated along the length direction of the channel groove (413); the channel groove (413) has an opening facing away from the square countersunk hole; and the first shaft sleeve (410) is provided with a cover plate (415) for closing the opening of the channel groove (413).

8. The electric push-pull lock according to claim 1, characterized in that: The drive shaft (510) is provided with a first gear (520) at one end extending out of the first sleeve (410); a first rack (530) meshing with the first gear (520) is slidably arranged in the vertical direction in the front lock body (100); a second rack (540) arranged in the vertical direction and orthogonal to the first rack (530) is fixedly arranged on the side wall of the first rack (530); the front handle (200) is rotatably connected to the front lock body (100) via a transversely placed second pivot (210); and the front handle (200) is fixedly provided with a second gear (550) arranged around the second pivot (210) and meshing with the second rack (540).

9. The electric push-pull lock according to claim 8, characterized in that: The front lock body (100) comprises a cover body (110) with an opening and a mounting plate (120) for closing the opening of the cover body (110); the mounting plate (120) and the cover body (110) define a first cavity; the first gear (520), the first rack (530) and the second rack (540) are all located in the first cavity; the cover body (110) is provided with two spaced-apart side ears (111) on a side away from the mounting plate (120); the second pivot (210) is passed through the two side ears (111); the cover body (110) is provided with a clearance hole (112) for the second gear (550) to extend into the first cavity; the second gear (550) is provided with a connecting plate (551) parallel to the second pivot (210); and the front handle (200) is fixedly connected to the connecting plate (551).

10. The electric push-pull lock according to claim 1, characterized in that: The front handle (200) is provided with a fingerprint recognition module (910) and a password disk (920), and the fingerprint recognition module (910) and the password disk (920) are both electrically connected to a control unit, and the control unit is connected to the electric device (800).