An electrical bidirectional self-resetting switch lock and a method for implementing the same

By designing an electrically bidirectional self-resetting switch lock, the structure is simplified, eliminating components such as the lock cylinder, lock sleeve, and sleeve, and enabling gear adjustment. This solves the problems of complex structure and high cost of existing key switch locks, and reduces manufacturing difficulty and selling price.

CN116487213BActive Publication Date: 2026-05-19SHENZHEN FANHAI SANJIANG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN FANHAI SANJIANG ELECTRONICS CO LTD
Filing Date
2023-05-31
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing key switch structures are complex, have a high failure rate, are costly, and lack a position stop function, making them inflexible in use.

Method used

Design an electrical bidirectional self-resetting switch lock, which adopts a gear adjustment shaft, first and second electrode terminals, gear switching terminal and gear adjustment mechanism. The gear adjustment is achieved by rotating the key, eliminating the lock cylinder, lock sleeve and sleeve and other components, thus simplifying the structure.

Benefits of technology

The overall structural complexity of the switch lock has been reduced, making it easier to manufacture, lowering costs, and reducing the selling price to around five yuan, thus improving the economic benefits for users.

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Abstract

The application relates to an electrical bidirectional self-resetting switch lock and an implementation method thereof. The switch lock comprises a lock body internally provided with a mounting cavity in an axial direction, a gear adjusting shaft provided in the mounting cavity in an axial direction, a first electrode terminal, a second electrode terminal, a gear switching terminal and a gear adjusting mechanism. A window for passing through a key is provided on the inner wall of the mounting cavity. The first electrode terminal is always attached to the gear switching terminal during rotation. The gear switching terminal is provided with an extension part. When the gear adjusting mechanism is in the first gear, the second electrode terminal is conducted with the first electrode terminal through the extension part. When the gear adjusting mechanism is in the second gear, the second electrode terminal is disconnected with the first electrode terminal through the extension part, thereby realizing the purpose of gear staying, and the use is more convenient. In addition, the overall structure of the switch lock is simple, the manufacturing difficulty is smaller, and the cost of the product can be greatly reduced.
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Description

Technical Field

[0001] This invention relates to the field of electrical switch and lock technology, and in particular to an electrical bidirectional self-resetting switch and lock and its implementation method. Background Technology

[0002] A rotary switch is an electrical switch that uses the rotation of a knob to drive a transmission mechanism, causing the moving contact to connect or disconnect with the stationary contact, thus switching the circuit. In electrical automatic control circuits, it is used to manually send control signals to control contactors, relays, electromagnetic starters, etc.

[0003] There are many types of controller switches on the market, one of which is the key button. Currently, most key buttons are fixed designs, lacking a stop function, making them inflexible and unable to meet certain usage needs. Furthermore, the structures of current key buttons are overly complex. For example, a key button-type electrical controller switch disclosed in Chinese patent CN213242367U consists of numerous small components such as a lock cylinder, lock sleeve, cam, slider, spring, sleeve, bracket, and face frame. Due to the large number of internal parts and complex structure, the failure rate of this type of key button switch is relatively high, and the manufacturing cost is also high, resulting in a relatively high unit price. Therefore, there is an urgent need for a key button with a simple internal structure, easy to manufacture, and capable of stop functionality. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an electrical bidirectional self-resetting switch lock, which can effectively solve the aforementioned problems.

[0005] To achieve the above requirements, the technical solution adopted by the present invention to solve its technical problem is as follows:

[0006] A bidirectional self-resetting electrical switch lock is provided, the switch lock comprising:

[0007] The lock body has an axially oriented mounting cavity inside; the inner wall of the mounting cavity has a window for the key to pass through;

[0008] A gear adjustment shaft is axially disposed within the mounting cavity; the gear adjustment shaft is provided with a keyhole for inserting a key corresponding to the window;

[0009] A first electrode terminal is located at the bottom of the mounting cavity; a rotating contact position is provided on the side wall of the gear adjustment shaft corresponding to the first electrode terminal, and the first electrode terminal abuts against the rotating contact position;

[0010] A gear shifting terminal is located on the rotating contact position; during rotation, the first electrode terminal remains in contact with the gear shifting terminal.

[0011] The second electrode terminal is located at the bottom of the mounting cavity; the gear shifting terminal has an extension along the axial direction of the gear adjustment shaft, the extension is located on the side wall of the gear adjustment shaft, and when the extension is rotated into position, the second electrode terminal abuts against the extension.

[0012] A gear adjustment mechanism is used to adjust the rotational position of the gear adjustment shaft. The gear adjustment mechanism has at least two gears. When in the first gear, the gear adjustment shaft rotates to make the second electrode terminal engage with the extension and conduct. When in the second gear, the gear adjustment shaft rotates to make the second electrode terminal disconnect from the extension and break the circuit.

[0013] The electrical bidirectional self-resetting switch lock of the present invention has a first electrode terminal passing through the bottom surface of the mounting cavity and coaxially arranged with the gear adjustment shaft. The end face of the gear adjustment shaft near the first electrode terminal forms the rotational contact position. The gear switching terminal is disposed on the rotational contact position. The extension extends to the arcuate sidewall of the gear adjustment shaft.

[0014] The present invention discloses an electrical bidirectional self-resetting switch lock, wherein an annular dam is provided around the first electrode terminal on the bottom surface of the mounting cavity, the gear adjustment shaft extends into the annular dam, the second electrode terminal is circumferentially attached to the outer wall of the annular dam, a clearance window is provided on the annular dam, the second electrode terminal is provided with a recessed portion corresponding to the clearance window, the recessed portion extends into the annular dam and is attached to the gear adjustment shaft, and the second electrode terminal is provided with a pin portion that penetrates the bottom surface of the mounting cavity.

[0015] The electrical bidirectional self-resetting switch lock of the present invention, wherein the recessed portion is V-shaped and its tip is in contact with the gear adjustment shaft.

[0016] The electrical bidirectional self-resetting switch lock of the present invention has two second electrode terminals arranged around the annular dam, the first electrode terminal being the positive terminal and the second electrode terminal being the negative terminal.

[0017] The present invention discloses an electrical bidirectional self-resetting switch lock, wherein the gear adjustment mechanism includes a slider axially slidably disposed within the mounting cavity, the slider having an axially through hole, and at least two gear slots on the end face of the slider facing the window, the two gear slots being arranged in a ring and connected end-to-end to form two gear positions respectively, a gear adjustment shaft having a gear cam corresponding to the gear slot, the gear adjustment mechanism further including a reset spring for pressing the slider against the gear slot, and a guide member on the inner wall of the mounting cavity to prevent the slider from rotating circumferentially.

[0018] The electric bidirectional self-resetting switch lock of the present invention has a fixed boss on the slider corresponding to the reset spring. When assembled, one end of the reset spring is sleeved on the outer wall of the fixed boss, and the other end abuts against the bottom of the mounting cavity.

[0019] The electric bidirectional self-resetting switch lock of the present invention includes a limiting groove on the side wall of the gear adjustment shaft on the side of the gear cam facing the window. The limiting groove is rectangular and arranged circumferentially. The inner side wall of the mounting cavity is provided with a limiting protrusion corresponding to the limiting groove. When the two limiting protrusions are respectively located at the two lateral ends of the limiting groove, the gear adjustment mechanism is in the two gear states respectively.

[0020] The electrical bidirectional self-resetting switch lock of the present invention includes a lock body comprising a lock cylinder, one end of which forms the window and the other end forms the mounting port. The lock body also includes a cover that seals the mounting port. The first electrode terminal is disposed on the inner side wall of the cover, and the cover is detachably connected to the lock cylinder.

[0021] In addition, a method for achieving position dwell of an electrical bidirectional self-resetting switch lock is provided, the method comprising the following steps:

[0022] Rotating the gear adjustment shaft in the forward direction causes the second electrode terminal to disconnect from the extension portion.

[0023] Rotate the gear adjustment shaft in the opposite direction to connect the second electrode terminal to the extension through the gear adjustment mechanism.

[0024] The beneficial effects of this invention are as follows: In use, the key is passed through the window and inserted into the keyhole for rotation. During the forward and reverse rotation of the gear adjustment shaft, the two gear states of the gear adjustment mechanism keep the gear adjustment shaft in two different rotation positions, thereby realizing the connection and disconnection of the first electrode terminal and the second electrode terminal. In addition, compared with existing switch locks, this invention eliminates the setting of lock cylinder, lock sleeve, sleeve and bracket and other components, which can greatly reduce the overall structural complexity of the switch lock, making manufacturing and processing more convenient and easier, and can greatly reduce the cost of the product. The switch lock product manufactured by this solution can be priced at about five yuan, while the switch lock product manufactured by the above-mentioned prior art costs about twenty yuan, which is more conducive to saving the product purchase cost for users. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0026] Figure 1 This is an exploded view of the overall structure of the electrical bidirectional self-resetting switch lock of the present invention.

[0027] Figure 2 yes Figure 1 Enlarged view of a local structure.

[0028] Figure 3 This is a circumferential sectional view of the electrical bidirectional self-resetting switch lock of the present invention.

[0029] Figure 4 This is a bottom view of the mounting cavity of the electrical bidirectional self-resetting switch lock of the present invention.

[0030] Figure 5 This is a flowchart of the method for implementing the stop position of the electrical bidirectional self-resetting switch lock of the present invention. Detailed Implementation

[0031] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0034] Furthermore, the terms indicating orientation, such as "up," "down," "left," "right," "upper end," "lower end," and "longitudinal," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0036] The preferred embodiment of the present invention is an electrical bidirectional self-resetting switch lock, such as... Figure 1-4 As shown,

[0037] The switch lock includes a lock body 1, and the lock body 1 has an axially provided mounting cavity 200 inside. The inner wall of the mounting cavity 200 has a window 100 through which a key 400 passes.

[0038] The switch lock also includes a gear adjustment shaft 2, which is axially located within the mounting cavity 200 and can rotate freely. A keyhole 300 for key insertion is provided on the end face of the gear adjustment shaft 2 corresponding to the window 100. To prevent the gear adjustment shaft 2 from coming out of the mounting cavity 200, a limiting step 2a is recessed on the end edge of the gear adjustment shaft 2, and a limiting protrusion 2b is provided on the inner wall of the mounting cavity 200 corresponding to the limiting step 2a. When assembled, the limiting protrusion 2b abuts against the limiting step in the direction of the bottom of the mounting cavity, thereby restricting the gear adjustment shaft 2 to rotate within the mounting cavity 200.

[0039] The switch lock also includes a first electrode terminal 3, which is located at the bottom of the mounting cavity 200. A rotating contact position 4 is provided on the side wall of the gear adjustment shaft 2 corresponding to the first electrode terminal 3. Specifically, the rotating contact position 4 is annular or circular. The first electrode terminal 3 abuts against the rotating contact position 4. The rotating contact can be set on the arc-shaped side wall of the gear adjustment shaft 2, in which case the rotating contact position 4 is annular. Of course, it can also be set on the end face adjacent to the first electrode terminal 3, in which case the rotating contact position 4 is circular. Of course, it can also be annular, as long as it is ensured that the first electrode terminal 3 is in contact with the rotating surface of the gear adjustment shaft 2.

[0040] The switch lock also includes a gear shift terminal 5, which is closely attached to the rotary contact position 4, so that the first electrode terminal 3 can always be in contact with the gear shift terminal 5 during the rotation of the gear adjustment shaft 2.

[0041] The switch lock also includes a second electrode terminal 6, which is also located at the bottom of the mounting cavity 200. The gear shifting terminal 5 has an extension 51 along the axial direction of the gear adjustment shaft 2. The width of the extension 51 is smaller than the circumference of the gear adjustment shaft 2. The extension 51 is closely attached to the side wall of the gear adjustment shaft 2. When the extension 51 is rotated to the position, the second electrode terminal 6 and the extension 51 abut against each other to ensure that the two can move relative to each other while also achieving electrical connection.

[0042] The switch lock also includes a gear adjustment mechanism 7, which is used to adjust the rotation position of the gear adjustment shaft 2. The gear adjustment mechanism 7 has at least two gears. When the gear adjustment mechanism 7 adjusts the position of the gear adjustment shaft 2 to the first gear, the second electrode terminal 6 is in contact with the extension 51 and conducts electricity. When the gear adjustment mechanism 7 adjusts the position of the gear adjustment shaft 2 to the second gear, the second electrode terminal 6 is separated from the extension 51 of the gear switching terminal 5 and the circuit is broken, thereby realizing the gear switching gear stop, which is more convenient to use and does not require the user to judge whether the first electrode terminal 3 and the second electrode terminal 6 are connected based on the rotation position of the gear adjustment shaft 2.

[0043] In use, the key is passed through the window 100 and inserted into the keyhole 300 and rotated. During the forward and reverse rotation of the gear adjustment shaft 2, the gear adjustment mechanism 7 maintains the gear adjustment shaft 2 in two different rotational positions, thereby realizing the conduction and disconnection of the first electrode terminal 3 and the second electrode terminal 6. In addition, compared with existing switch locks, the present invention eliminates the setting of lock cylinder, lock sleeve, sleeve and bracket and other components, which can greatly reduce the overall structural complexity of the switch lock, making manufacturing and processing more convenient and easier, and can greatly reduce the cost of the product. The switch lock product manufactured by this solution can be priced at about five yuan, while the switch lock product manufactured by the above-mentioned existing technology costs about twenty yuan, which is more conducive to saving the product purchase cost for users.

[0044] Preferably, the first electrode terminal 3 passes through the bottom surface of the mounting cavity 200 and is coaxially arranged with the gear adjustment shaft 2, so as to facilitate the arrangement of the positions of the first electrode terminal 3 and the gear switching terminal 5. The end face of the gear adjustment shaft 2 near the first electrode terminal 3 forms a rotating contact position 4, and the gear switching terminal 5 is disposed on the rotating contact position 4. The extension portion 51 extends to the arc-shaped side wall of the gear adjustment shaft 2 and is in close contact with each other. This arrangement can simplify the manufacturing process of the gear switching terminal 5. It is simpler to process the gear switching terminal 5 into a circle, which can be directly formed by punching a metal plate.

[0045] Preferably, an annular dam 8 is provided around the first electrode terminal 3 on the bottom surface of the mounting cavity 200. The gear adjustment shaft 2 extends into the annular dam 8. The second electrode terminal 6 is circumferentially attached to the outer wall of the annular dam 8. A clearance window 9 is provided on the annular dam 8. The second electrode terminal 6 is provided with a recess 61 corresponding to the clearance window 9. The recess 61 extends into the annular dam 8 and is attached to the gear adjustment shaft 2. The second electrode terminal 6 is provided with a pin portion 62 that penetrates the bottom surface of the mounting cavity 200. Specifically, the recess 61 is V-shaped and its tip is attached to the gear adjustment shaft 2. Thus, when the gear adjustment shaft 2 is in the first gear position, the first electrode terminal 3 and the second electrode terminal 6 are connected through the extension portion 51 and the tip of the recess 61. When the gear adjustment shaft 2 is in the second gear position, the extension portion 51 and the tip of the recess 61 are separated, thus breaking the circuit between the first electrode terminal 3 and the second electrode terminal 6.

[0046] Preferably, there are two second electrode terminals 6 arranged around the annular dam 8. Each of the two second electrode terminals 6 has a recess 61, and there are also two corresponding clearance windows 9 on the annular dam 8. The first electrode terminal 3 is the positive terminal and the second electrode terminal 6 is the negative terminal, so as to realize the switching of the two lines.

[0047] Preferably, the gear adjustment mechanism 7 includes a slider 71 axially slidably disposed within the mounting cavity 200. The slider 71 has an axially slidable through hole 10. At least two arc-shaped gear grooves 11 are provided on the end face of the slider 71 facing the window 100. The two gear grooves 11 are arranged in a ring and connected end-to-end, forming two gear positions respectively. A gear adjustment shaft 2 is provided with a gear cam 12 corresponding to the gear groove 11. The gear cam 12 faces the gear groove 11, and the transition section connecting the two gear grooves 11 is an arc protruding towards the window 100. The gear adjustment mechanism 7 includes a return spring 72 that presses the slider 71 against the gear slot 11, a guide a2 on the inner wall of the mounting cavity 200 to prevent the slider 71 from rotating circumferentially, and a guide groove 13 on the slider 71 corresponding to the guide a2. In use, rotating the gear adjustment shaft 2 causes the gear cam 12 to rotate synchronously and slide out of one gear slot 11 and into another gear slot 11, thus switching from one gear stop state to another. During the rotation process, when the gear cam moves to the highest point of the connecting section between the two gear slots, it can quickly and automatically enter the gear state through the return spring, realizing the automatic reset function of gear switching. The inner wall of the gear slot 11 and the gear cam 12 is in a wheel shape and perpendicular to the gear adjustment shaft 2, so that the gear cam 12 is subjected to more balanced force when sliding in a circumferential manner. In the initial state, the return spring 72 presses the slider 71 against the gear cam 12, so that the gear cam 12 is engaged with one of the gear slots 11, so that the first electrode terminal 3 is separated from the second electrode terminal 6. When the gear adjustment shaft 2 rotates so that the other gear cam 12 is engaged with the other gear slot 11, the first electrode terminal 3 and the second electrode terminal 6 are connected through the engagement of the recess 61 and the extension 51. Specifically, in the initial state, the extension 51 is located between the two recesses 61 and does not contact each other, so that when switching the connection line, the positive electrode can be connected to the first negative electrode or the second negative electrode by rotating left or right.

[0048] Compared to traditional lock switches, this solution has a simpler internal structure, eliminating the need for lock cylinders, lock sleeves, sleeves, brackets, and other components. This significantly reduces the overall structural complexity of the lock switch and makes manufacturing easier.

[0049] Preferably, the slider 71 is provided with a fixing boss 14 corresponding to the reset spring 72. When assembled, one end of the reset spring 72 is sleeved on the outer wall of the fixing boss 14, and the other end abuts against the bottom of the mounting cavity 200. Specifically, it can be sleeved on the annular dam 8, thereby fixing the reset spring 72 and preventing the two ends from moving. At the same time, it can also serve to press the two second electrode terminals 6 against the annular dam 8. Correspondingly, except for the recessed part 61 that contacts the reset spring 72, the other surfaces of the second electrode terminals 6 are provided with an insulating layer to prevent the two second electrode terminals 6 from being short-circuited by the reset spring 72.

[0050] Preferably, a limiting groove 15 is provided on the side wall of the gear adjustment shaft 2 on the side of the gear cam facing the window 100. The limiting groove 15 is rectangular and arranged circumferentially. A limiting protrusion 16 is provided on the inner side wall of the mounting cavity 200 corresponding to the limiting groove 15. When the two limiting protrusions 16 are respectively located at the two lateral ends of the limiting groove, the gear adjustment mechanism 7 is in two gear positions respectively, so as to prevent the operator from excessively turning the gear adjustment shaft 2 and causing the gear position to shift.

[0051] Preferably, the lock body 1 includes a lock cylinder 101, with one end of the lock cylinder 101 opening to form a window 100 and the other end forming a mounting port. The lock body also includes a cover 102 that seals the mounting port. The first electrode terminal 3 and the second electrode terminal 6 are both disposed on the bottom wall of the cover 102. The cover 102 is detachably connected to the lock cylinder to facilitate separate manufacturing and to facilitate the assembly of the second electrode terminal 6, the slider 71, the return spring 72, and the gear adjustment shaft 2.

[0052] The preferred embodiment of the present invention provides a method for implementing the stop position of an electrical bidirectional self-resetting switch lock, such as... Figure 5 As shown, the method includes the following steps:

[0053] Step S10: Rotate the gear adjustment shaft 2 in the forward direction. The rotation of the gear adjustment shaft 2 causes the second electrode terminal 6 to separate from the extension 51 and break the circuit.

[0054] Step S20: Rotate the gear adjustment shaft 2 in the opposite direction to connect the second electrode terminal 6 with the extension 51 through the gear adjustment mechanism 7.

[0055] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electrical bidirectional self-resetting switch lock, characterized in that, include The lock body has an axially oriented mounting cavity inside; the inner wall of the mounting cavity has a window for the key to pass through; A gear adjustment shaft is axially disposed within the mounting cavity; the gear adjustment shaft is provided with a keyhole for inserting a key corresponding to the window; A first electrode terminal is located at the bottom of the mounting cavity; a rotating contact position is provided on the side wall of the gear adjustment shaft corresponding to the first electrode terminal, and the first electrode terminal abuts against the rotating contact position; A gear shifting terminal is located on the rotary contact position; During rotation, the first electrode terminal remains in contact with the gear shift terminal. The second electrode terminal is located at the bottom of the mounting cavity; the gear shifting terminal has an extension along the axial direction of the gear adjustment shaft, the extension is located on the side wall of the gear adjustment shaft, and when the extension is rotated into position, the second electrode terminal abuts against the extension. A gear adjustment mechanism is used to adjust the rotational position of the gear adjustment shaft. The gear adjustment mechanism has at least two gears. When in the first gear, the gear adjustment shaft rotates to make the second electrode terminal engage with the extension and conduct. When in the second gear, the gear adjustment shaft rotates to make the second electrode terminal disconnect from the extension and break the circuit.

2. The electrical bidirectional self-resetting switch lock according to claim 1, characterized in that, The first electrode terminal passes through the bottom surface of the mounting cavity and is coaxially arranged with the gear adjustment shaft. The end face of the gear adjustment shaft near the first electrode terminal forms the rotation contact position. The gear switching terminal is disposed on the rotation contact position. The extension extends to the arc-shaped sidewall of the gear adjustment shaft.

3. The electrical bidirectional self-resetting switch lock according to claim 2, characterized in that, An annular dam is provided around the first electrode terminal on the bottom surface of the mounting cavity. The gear adjustment shaft extends into the annular dam. The second electrode terminal is circumferentially attached to the outer wall of the annular dam. A clearance window is provided on the annular dam. The second electrode terminal has a recessed portion corresponding to the clearance window. The recessed portion extends into the annular dam and is attached to the gear adjustment shaft. The second electrode terminal has a pin portion that penetrates the bottom surface of the mounting cavity.

4. The electrical bidirectional self-resetting switch lock according to claim 3, characterized in that, The recessed portion is V-shaped, and its tip fits against the gear adjustment shaft.

5. The electrical bidirectional self-resetting switch lock according to claim 4, characterized in that, The second electrode terminal is provided in two parts and arranged around the annular dam, the first electrode terminal is the positive terminal and the second electrode terminal is the negative terminal.

6. The electrical bidirectional self-resetting switch lock according to any one of claims 1-5, characterized in that, The gear adjustment mechanism includes a slider that is axially slidably disposed in the mounting cavity. The slider has an axially through hole. At least two gear slots are provided on the end face of the slider facing the window. The two gear slots are arranged in a ring and connected end to end to form two gears respectively. A gear cam is provided on the gear adjustment shaft corresponding to the gear slot. The gear adjustment mechanism also includes a return spring that presses the slider against the gear slot. A guide member is provided on the inner wall of the mounting cavity to prevent the slider from rotating circumferentially.

7. The electrical bidirectional self-resetting switch lock according to claim 6, characterized in that, The slider has a fixed boss corresponding to the reset spring. When assembled, one end of the reset spring is sleeved on the outer wall of the fixed boss, and the other end abuts against the bottom of the mounting cavity.

8. The electrical bidirectional self-resetting switch lock according to claim 6, characterized in that, A limiting groove is provided on the side wall of the gear adjustment shaft on the side of the gear cam facing the window. The limiting groove is rectangular and arranged circumferentially. A limiting protrusion is provided on the inner side wall of the mounting cavity corresponding to the limiting groove. When the two limiting protrusions are respectively located at the two lateral ends of the limiting groove, the gear adjustment mechanism is in the two gear states respectively.

9. The electrical bidirectional self-resetting switch lock according to claim 1, characterized in that, The lock body includes a lock cylinder, one end of which forms the window and the other end forms the mounting port. The lock body also includes a cover that seals the mounting port. The first electrode terminal is located on the inner side wall of the cover. The cover and the lock cylinder are detachably connected.

10. A method for achieving position holding in an electrical bidirectional self-resetting switch lock as described in claim 1, characterized in that, The method includes the following steps: Rotating the gear adjustment shaft in the forward direction causes the second electrode terminal to disconnect from the extension portion. Rotate the gear adjustment shaft in the opposite direction to connect the second electrode terminal to the extension through the gear adjustment mechanism.