electronic lock

Abstract

This utility model discloses an electronic lock, which includes a locking component and a first cam gear. The locking component includes a vertically upward locking rod and a horizontally upward locking connecting rod. The tail end of the horizontally upward locking connecting rod is vertically fixed to the lower end of the vertically upward locking rod. The outer circumference of the first cam shaft of the first cam gear has a spirally rising first cam groove and a self-locking groove. One side of the self-locking groove is connected to the upper end of the first cam groove, and the other side has a vertical wall. The vertically upward side has an upper sidewall connecting to the upper end of the upper groove wall of the self-locking groove, and the lower side has a lower sidewall connecting to the upper end of the lower groove wall of the self-locking groove. The vertically upward locking rod is perpendicular to the lower and upper sidewalls of the self-locking groove. In the unlocked state, the head end of the locking connecting rod extends into the first cam groove. The electronic lock of this utility model can self-lock.

Description

Technical Field

[0001] This utility model relates to locks, and more particularly to an electronic lock. Background Technology

[0002] The electronic lock for car charging guns is mainly used during the car charging process. Through a transmission mechanism, the locking rod extends to lock the charging gun, preventing it from being pulled out by external force before charging is complete. After charging is complete, the locking rod retracts to unlock the charging gun, allowing it to be pulled out smoothly.

[0003] To prevent electronic locks from failing to unlock properly after locking, existing electronic locks need to have an emergency unlocking function. However, existing electronic locks with this function will lose power after locking, and the locking lever's holding force is generally too weak. This can cause the locking lever to be pushed back by external force, making it impossible to lock the charging gun. The charging gun can then be pulled out, posing a safety risk. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electronic lock that can self-lock.

[0005] To solve the above-mentioned technical problems, the electronic lock provided by this utility model includes a locking member 1 and a first cam gear 2;

[0006] The locking component 1 includes a vertical locking rod 10 and a horizontal locking connecting rod 11;

[0007] The tail end of the horizontal locking link 11 is vertically fixed to the lower end of the vertical locking link 10;

[0008] The first cam gear 2 includes a first camshaft 21;

[0009] The outer periphery of the first camshaft 21 is formed with a spirally rising first cam groove 210 and a self-locking groove 211;

[0010] The self-locking groove 211 has a horizontal side connected to the upper end of the first cam groove 210, and a vertical wall formed on the other horizontal side. A top side wall is formed on the upper side of the self-locking groove 211, which connects to the upper end of the upper groove wall of the self-locking groove 211, and a bottom side wall is formed on the lower side of the self-locking groove 211, which connects to the upper end of the lower groove wall of the self-locking groove 211.

[0011] The vertical locking rod 10 is perpendicular to the lower and upper sidewalls of the self-locking groove 211;

[0012] In the unlocked state, the head of the locking link 11 extends into the first cam groove 210. The rotation of the first cam gear 2 can drive the head of the locking link 11 to move up and down, thereby driving the vertical locking rod 10 to move up and down.

[0013] In the unlocked state, when the first cam gear 2 rotates forward and drives the head of the locking link 11 to move upward and enter the self-locking groove 211, the vertical locking rod 10 is driven into the locked position, and the head of the locking link 11 will abut against the vertical wall of the self-locking groove 211, thereby restricting the first cam gear 2 from continuing to rotate forward and entering the locked state.

[0014] In the locked state, if the first cam gear 2 rotates in the opposite direction, the head of the locking link 11 will enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby causing the vertical locking rod 10 to move downward and enter the unlocked position, thus entering the unlocked state.

[0015] Preferably, the electronic lock is an electronic lock for a car charging gun.

[0016] Preferably, when the vertical locking lever 10 is in the locked position, the drive system of the electronic lock will be de-energized.

[0017] Preferably, the electronic lock further includes an unlocking component 3;

[0018] The unlocking component 3 includes a lateral unlocking link 31;

[0019] The head end of the transverse unlocking link 31 is placed in the first cam groove 210 and is located away from the self-locking groove 211 of the transverse locking link 11;

[0020] When the unlocking component 3 is pulled down, its horizontal unlocking link 31 moves down towards the first cam groove 210, applying a component force in the rotational direction to cause the first cam gear 2 to rotate in the opposite direction. The head end of the locking link 11 will enter the first cam groove 210 and move down under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move down into the unlocking position, completing the unlocking and entering the unlocked state.

[0021] Preferably, the electronic lock further includes an unlocking element 3 and a second cam gear 4;

[0022] The unlocking component 3 includes a lateral unlocking link 31;

[0023] The second cam gear 4 includes a second camshaft 41 and a second gear 40;

[0024] The second camshaft 41 has a spirally rising second cam groove 410 formed on its outer periphery;

[0025] The second gear 40 is coaxially fixed to the upper end of the second camshaft 41;

[0026] The first cam gear 2 also includes a first gear 20;

[0027] The first gear 20 is coaxially fixed to the lower end of the first camshaft 21;

[0028] The first gear 20 meshes with the second gear 40;

[0029] The head end of the transverse unlocking link 31 is placed in the second cam groove 410;

[0030] In the locked state, when the unlocking component 3 is pulled down, its horizontal unlocking link 31 moves down towards the second cam groove 410, applying a component force in the rotational direction to make the second cam gear 4 rotate in the forward direction. The forward rotation of the second gear 40 drives the first cam gear 2 to rotate in the reverse direction, causing the head end of the locking link 11 to enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move downward into the unlock position, completing the unlocking and entering the unlocked state.

[0031] Preferably, the electronic lock further includes a rack 5 and an unlocking handle 6;

[0032] The first cam gear 2 also includes a first gear 20;

[0033] The first gear 20 is coaxially fixed to the lower end of the first camshaft 21;

[0034] The first gear 20 meshes with the rack 5;

[0035] The unlocking handle 6 includes a push rod 61;

[0036] In the locked state, when the unlocking handle 6 is rotated, its push rod 61 will abut against the right end of the rack 5 and push the rack 5 to move laterally to the left. The rack 5 moving to the left will drive the first cam gear 2 to rotate in the opposite direction. The head end of the locking link 11 will enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move downward to the unlock position, completing the unlocking and entering the unlocked state.

[0037] In this invention, when the vertical locking lever 10 reaches the locked position, the lower and upper side walls of the self-locking groove 211 of the first cam gear 2 are perpendicular to the vertical locking lever 10. This ensures that the external force acting directly on the vertical locking lever 10 does not have a component force in the rotation direction of the first cam shaft 21 of the first cam gear 2. This prevents the external force acting directly on the vertical locking lever 10 from moving up and down, thus achieving self-locking of the locking lever 10 in the locked position and preventing the locking lever 10 from being accidentally pushed back. Attached Figure Description

[0038] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a diagram showing the locking position of an embodiment of the electronic lock of this utility model;

[0040] Figure 2 This is an enlarged view of the locking position of an embodiment of the electronic lock of this utility model;

[0041] Figure 3 This is an exploded view of an embodiment of the electronic lock of this utility model with an emergency unlocking structure;

[0042] Figure 4 This is a schematic diagram of an embodiment of the electronic lock of this utility model with an emergency unlocking structure;

[0043] Figure 5 This is a schematic diagram of another embodiment of the electronic lock of this utility model with an emergency unlocking structure;

[0044] Figure 6 This is a schematic diagram of another embodiment of the electronic lock of this utility model with an emergency unlocking structure.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1 Locking component; 10 Locking rod; 11 Locking linkage; 2 First cam gear; 20 First gear; 21 First camshaft; 210 First cam groove; 211 Self-locking groove; 3 Unlocking component; 31 Unlocking linkage; 4 Second cam gear; 40 Second gear; 41 Second camshaft; 410 Second cam groove; 5 Rack; 6 Unlocking handle; 61 Push rod. Detailed Implementation

[0047] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0048] Example 1

[0049] An electronic lock such as Figures 1 to 6 As shown, it includes a locking element 1 and a first cam gear 2;

[0050] The locking component 1 includes a vertical locking rod 10 and a horizontal locking connecting rod 11;

[0051] The tail end of the horizontal locking link 11 is vertically fixed to the lower end of the vertical locking link 10;

[0052] The first cam gear 2 includes a first camshaft 21;

[0053] The outer periphery of the first camshaft 21 is formed with a spirally rising first cam groove 210 and a self-locking groove 211;

[0054] The self-locking groove 211 has a horizontal side connected to the upper end of the first cam groove 210, and a vertical wall formed on the other horizontal side. A top side wall is formed on the upper side of the self-locking groove 211, which connects to the upper end of the upper groove wall of the self-locking groove 211, and a bottom side wall is formed on the lower side of the self-locking groove 211, which connects to the upper end of the lower groove wall of the self-locking groove 211.

[0055] The self-locking groove 211 has a horizontal side connected to the upper end of the first cam groove 210, and a vertical wall formed on the other horizontal side. A top side wall is formed on the upper side of the self-locking groove 211, which connects to the upper end of the upper groove wall of the self-locking groove 211, and a bottom side wall is formed on the lower side of the self-locking groove 211, which connects to the upper end of the lower groove wall of the self-locking groove 211.

[0056] The vertical locking rod 10 is perpendicular to the lower and upper sidewalls of the self-locking groove 211;

[0057] In the unlocked state, the head of the locking link 11 extends into the first cam groove 210. The rotation of the first cam gear 2 can drive the head of the locking link 11 to move up and down, thereby driving the vertical locking rod 10 to move up and down.

[0058] In the unlocked state, when the first cam gear 2 rotates forward and drives the head of the locking link 11 to move upward and enter the self-locking groove 211, the vertical locking rod 10 is driven into the locked position, and the head of the locking link 11 will abut against the vertical wall of the self-locking groove 211, thereby restricting the first cam gear 2 from continuing to rotate forward and entering the locked state.

[0059] In the locked state, if the first cam gear 2 rotates in the opposite direction, the head of the locking link 11 will enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby causing the vertical locking rod 10 to move downward and enter the unlocked position, thus entering the unlocked state.

[0060] In the electronic lock of Embodiment 1, when the vertical locking lever 10 reaches the locked position, the lower and upper side walls of the self-locking groove 211 of the first cam gear 2 are perpendicular to the vertical locking lever 10. This ensures that the external force acting directly on the vertical locking lever 10 does not have a component force in the rotation direction of the first cam shaft 21 of the first cam gear 2. This prevents the external force acting directly on the vertical locking lever 10 from moving up and down, thus achieving self-locking of the locking lever 10 in the locked position and preventing the locking lever 10 from being accidentally pushed back.

[0061] Example 2

[0062] Based on Embodiment 1, the electronic lock is an electronic lock for a car charging gun.

[0063] Preferably, when the vertical locking lever 10 is in the locked position, the electronic lock drive system will be de-energized.

[0064] In the second embodiment of the electronic lock, when the upper locking rod 10 is pushed downward by an external force, the lower and upper side walls of the self-locking groove 211 of the first cam gear 2 are perpendicular to the vertical locking rod 10, and the lower side wall of the self-locking groove 211 is perpendicular to the direction of the movement of the locking member 1 being pushed back. This prevents the vertical locking rod 10 from retracting, prevents the electronic lock from entering the unlocked state, and prevents the charging gun from being pulled out. This avoids leakage and theft, and reduces safety hazards.

[0065] Example 3

[0066] Based on Example 1, such as Figure 3 , Figure 4 As shown, the electronic lock also includes an unlocking component 3;

[0067] The unlocking component 3 includes a lateral unlocking link 31;

[0068] The head end of the transverse unlocking link 31 is placed in the first cam groove 210 and is located away from the self-locking groove 211 of the transverse locking link 11;

[0069] When the unlocking component 3 is pulled down, its horizontal unlocking link 31 moves down towards the first cam groove 210, applying a component force in the rotational direction to cause the first cam gear 2 to rotate in the opposite direction. The head end of the locking link 11 will enter the first cam groove 210 and move down under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move down into the unlocking position, completing the unlocking and entering the unlocked state.

[0070] The electronic lock in Example 3 can not only achieve self-locking, but also achieve emergency unlocking function simply and effectively.

[0071] Example 4

[0072] Based on Example 1, such as Figure 5As shown, the electronic lock also includes an unlocking component 3 and a second cam gear 4;

[0073] The unlocking component 3 includes a lateral unlocking link 31;

[0074] The second cam gear 4 includes a second camshaft 41 and a second gear 40;

[0075] The second camshaft 41 has a spirally rising second cam groove 410 formed on its outer periphery;

[0076] The second gear 40 is coaxially fixed to the upper end of the second camshaft 41;

[0077] The first cam gear 2 also includes a first gear 20;

[0078] The first gear 20 is coaxially fixed to the lower end of the first camshaft 21;

[0079] The first gear 20 meshes with the second gear 40;

[0080] The head end of the transverse unlocking link 31 is placed in the second cam groove 410;

[0081] In the locked state, when the unlocking component 3 is pulled down, its horizontal unlocking link 31 moves down towards the second cam groove 410, applying a component force in the rotational direction to make the second cam gear 4 rotate in the forward direction. The forward rotation of the second gear 40 drives the first cam gear 2 to rotate in the reverse direction, causing the head end of the locking link 11 to enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move downward into the unlock position, completing the unlocking and entering the unlocked state.

[0082] The electronic lock in Example 4 can not only achieve self-locking, but also achieve emergency unlocking function simply and effectively.

[0083] Example 5

[0084] Based on Example 1, such as Figure 6 As shown, the electronic lock also includes a rack 5 and an unlocking handle 6;

[0085] The first cam gear 2 also includes a first gear 20;

[0086] The first gear 20 is coaxially fixed to the lower end of the first camshaft 21;

[0087] The first gear 20 meshes with the rack 5;

[0088] The unlocking handle 6 includes a push rod 61;

[0089] In the locked state, when the unlocking handle 6 is rotated, its push rod 61 will abut against the right end of the rack 5 and push the rack 5 to move laterally to the left. The rack 5 moving to the left will drive the first cam gear 2 to rotate in the opposite direction. The head end of the locking link 11 will enter the first cam groove 210 and move downward under the action of the first cam groove 210, thereby driving the vertical locking rod 10 to move downward to the unlock position, completing the unlocking and entering the unlocked state.

[0090] The electronic lock in Example 5 can not only achieve self-locking, but also easily and effectively achieve emergency unlocking function.

[0091] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An electronic lock characterized by comprising: It includes a locking element (1) and a first cam gear (2); The locking component (1) includes a vertical locking rod (10) and a horizontal locking link (11); The tail end of the horizontal locking link (11) is vertically fixed to the lower end of the vertical locking link (10); The first cam gear (2) includes a first camshaft (21); The outer periphery of the first camshaft (21) is formed with a spirally rising first cam groove (210) and a self-locking groove (211); The self-locking groove (211) is connected to the upper end of the first cam groove (210) on one side in the horizontal direction, and a vertical wall is formed on the other side in the horizontal direction. An upper side wall is formed on the upper side in the vertical direction to connect to the upper end of the upper groove wall of the self-locking groove (211), and a lower side wall is formed on the lower side in the vertical direction to connect to the upper end of the lower groove wall of the self-locking groove (211). The vertical locking rod (10) is perpendicular to the lower and upper sidewalls of the self-locking groove (211); In the unlocked state, the head of the locking link (11) extends into the first cam groove (210), and the rotation of the first cam gear (2) can drive the head of the locking link (11) to move up and down, thereby driving the vertical locking rod (10) to move up and down. In the unlocked state, when the first cam gear (2) rotates forward and drives the head of the locking link (11) to move upward and enter the self-locking groove (211), the vertical locking rod (10) is driven into the locked position, and the head of the locking link (11) will abut against the vertical wall of the self-locking groove (211) to restrict the first cam gear (2) from continuing to rotate forward and enter the locked state; In the locked state, if the first cam gear (2) rotates in the opposite direction, the head end of the locking link (11) will enter the first cam groove (210) and move downward under the action of the first cam groove (210), thereby driving the vertical locking rod (10) to move downward into the unlocked position and enter the unlocked state.

2. The electronic lock according to claim 1, characterized in that, The electronic lock is a car charging gun electronic lock.

3. The electronic lock according to claim 2, characterized in that, When the vertical locking lever (10) is in the locked position, the drive system of the electronic lock will be de-energized.

4. The electronic lock according to claim 1, characterized in that, The electronic lock also includes an unlocking component (3); The unlocking component (3) includes a lateral unlocking link (31); The head end of the transverse unlocking link (31) is placed in the first cam groove (210) and located away from the self-locking groove (211) of the transverse locking link (11); When the unlocking component (3) is pulled down, its horizontal unlocking link (31) moves down toward the first cam groove (210) and applies a component force in the rotational direction, causing the first cam gear (2) to rotate in the opposite direction. The head end of the locking link (11) will enter the first cam groove (210) and move down under the action of the first cam groove (210), thereby driving the vertical locking bar (10) to move down into the unlocking position, completing the unlocking and entering the unlocking state.

5. The electronic lock according to claim 1, characterized in that, The electronic lock also includes an unlocking component (3) and a second cam gear (4); The unlocking component (3) includes a lateral unlocking link (31); The second cam gear (4) includes a second camshaft (41) and a second gear (40); The second camshaft (41) has a spirally rising second cam groove (410) formed on its outer periphery; The second gear (40) is coaxially fixed to the upper end of the second camshaft (41); The first cam gear (2) further includes a first gear (20); The first gear (20) is coaxially fixed to the lower end of the first camshaft (21); The first gear (20) meshes with the second gear (40); The head end of the lateral unlocking link (31) is placed in the second cam groove (410); In the locked state, when the unlocking component (3) is pulled down, its horizontal unlocking link (31) moves down toward the second cam groove (410) to apply a component force in the rotational direction, causing the second cam gear (4) to rotate in the forward direction. The forward rotation of the second gear (40) drives the first cam gear (2) to rotate in the reverse direction, causing the head end of the locking link (11) to enter the first cam groove (210) and move downward under the action of the first cam groove (210), thereby driving the vertical locking bar (10) to move downward into the unlock position, completing the unlocking and entering the unlocked state.

6. The electronic lock according to claim 1, characterized in that, The electronic lock also includes a rack (5) and an unlocking handle (6); The first cam gear (2) further includes a first gear (20); The first gear (20) is coaxially fixed to the lower end of the first camshaft (21); The first gear (20) meshes with the rack (5); The unlocking handle (6) includes a push rod (61); In the locked state, when the unlocking handle (6) is rotated, its push rod (61) will abut against the right end of the rack (5) and push the rack (5) to move laterally to the left. The rack (5) moving to the left will drive the first cam gear (2) to rotate in the opposite direction. The head end of the locking link (11) will enter the first cam groove (210) and move downward under the action of the first cam groove (210), thereby driving the vertical locking rod (10) to move downward to enter the unlocking position, completing the unlocking and entering the unlocked state.

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