Lock with telescopic contact type constant power supply mechanism

Abstract

The utility model relates to a lock with a telescopic contact type constant power supply mechanism. A power supply structure of an existing lock is complex, and installation and maintenance experience is affected. The lock comprises a lock catch plate with a buckle hole and a lock body with a spring bolt, a constant power supply mechanism is arranged between the lock catch plate and the lock body, and the constant power supply mechanism comprises a power supply assembly which is arranged on the lock catch plate and provided with a power supply spring bolt and a power receiving assembly which is arranged on the lock body and provided with a battery and an electrode. When the lock body swings along with the door body and is buckled and locked with the buckle hole through the lock tongue, the electrode and the power supply tongue stretch and abut against each other and conduct electricity, so that the power supply tongue supplies power to the battery through the electrode when the door body is switched to the closed state. The power supply assembly and the power receiving assembly are arranged on the lock catch plate and the lock correspondingly, the door body is closed, the power supply assembly and the power receiving assembly are conducted and transmit power, the installation difficulty is lowered, assembly and maintenance are convenient, the battery can be used for storing electric energy and continuously supplying power to the lock, and the use experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to a lock with a telescopic abutment-type constant power supply mechanism. Background Technology

[0002] As electronic locks become increasingly popular, problems such as small battery capacity, short battery life, and battery leakage have gradually emerged. To address this battery issue, a constant power supply structure has appeared on the market, where 220V AC power is converted by a power adapter to supply power to the lock. This structure uses a cable guide to pass through the door frame and door body, directly supplying low-voltage DC power to the lock. The cable guide is located on the side edge of the door body near the hinge, keeping the distance between the door edge and the corresponding edge of the door frame within a small range, facilitating power cable laying. While this structure solves many problems associated with battery use, it also has drawbacks. It requires drilling holes in the door body and frame to install the cable guide, increasing workload and potentially causing damage to the door body and frame. Furthermore, it requires pre-burying the power cable within the door body, increasing assembly difficulty and making repairs difficult if the power cable is damaged, thus affecting the user experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a lock with a telescopic, contact-type, continuously powered supply mechanism. A power supply component and a power receiving component are respectively installed on the strike plate and the lock. When the door is closed, the power supply component and the power receiving component are connected and supply power. This not only reduces installation difficulty and facilitates assembly and maintenance, but also utilizes a battery to store electrical energy and continuously power the lock, thus improving the user experience.

[0004] This utility model is achieved through the following method: a lock with a telescopic abutment-type constant power supply mechanism, comprising a strike plate with a latch hole and a lock body with a bolt. A constant power supply mechanism is provided between the strike plate and the lock body. The constant power supply mechanism includes a power supply component with a power supply bolt on the strike plate and a power receiving component with a battery and electrodes on the lock body. When the lock body swings with the door and locks itself by engaging the latch hole, the electrodes and the power supply bolt extend and abut against each other, conducting electricity. This allows the power supply bolt to supply power to the battery through the electrodes when the door is switched to a closed state. By providing the power supply component and the power receiving component on the strike plate and the lock respectively, the electrodes can abut against the power supply bolt when the door is closed, allowing the battery to receive power from the power supply component and charge when the door is closed, providing the lock with the necessary power for operation. This reduces installation difficulty, facilitates assembly and maintenance, and allows the battery to store energy and continuously power the lock, improving the user experience.

[0005] Preferably, the electrode is frustoconical, with a guiding frustoconical surface forming the periphery of its receiving end. The power supply end of the power supply tongue has a guiding inclined surface. The door swings around the door hinge, and the frustoconical surface and the inclined surface abut against each other, driving the electrode and the power supply tongue to retract and avoid each other, so that the electrode abuts against the corresponding end face of the power supply tongue when the door swings to the closed position. The power supply tongue and the electrode can extend and retract. The electrode swings with the door and abuts against the inclined surface of the power supply tongue through the frustoconical surface, thereby converting the circumferential force of the electrode around the door hinge into a linear driving force that drives the electrode and the power supply tongue to retract and avoid each other. This ensures that the electrode and the power supply tongue can retract and avoid each other, ensuring that the door can smoothly switch to the closed state and that the corresponding end faces of the electrode and the power supply tongue are tightly fitted together, effectively improving the reliability of conductivity.

[0006] Preferably, the latch plate has a power supply slot. The power supply component includes a positioning seat inside the power supply slot and a guide sleeve at the slot opening. The guide sleeve has a power supply channel. The power supply tongue is mounted on the positioning seat via an adjusting bolt with a return spring, allowing the power supply tongue to extend and retract along the power supply channel and return to its original position exposed at the slot opening. The power supply slot accommodates the power supply component, eliminating the need for separate machining of space on the door frame to conceal it and preventing structural damage to the door frame due to secondary machining. The positioning seat is fixed to the bottom of the power supply slot and, through the adjusting bolt, limits the power supply tongue, ensuring it moves freely within a preset range and preventing it from detaching from the slot. The guide sleeve is fixed to the slot opening, guiding the power supply tongue along a preset path and sealing the gap between the power supply tongue and the slot opening to prevent foreign objects from entering and improve aesthetics.

[0007] Preferably, the positioning seat is fixed to the bottom of the power supply slot by fasteners. The positioning seat has an internal through hole, and the power supply tongue has an external through hole. The adjusting bolt passes through the external through hole, the return spring, and the internal through hole from the outside to the inside, and is then screwed into the anti-loosening nut. This allows the return spring to compress and deform when the power supply tongue is retracted into the power supply slot under force, accumulating a preload force to drive the power supply tongue back to its original position. The return spring is sleeved on the adjusting bolt, so that the return spring can only expand and contract along the axial direction of the adjusting bolt. The return spring is clamped between the positioning seat and the power supply tongue, so that when the power supply tongue is brought close to the positioning seat under force, it obtains the preload force required for reset by squeezing the return spring, ensuring that the power supply tongue has a preload force for outward movement and always fits tightly against the end face of the electrode. The tail of the adjusting bolt protrudes from the power supply tongue. The user drives the adjusting bolt to rotate by the tail and adjusts the position of the anti-loosening nut on the adjusting bolt to adjust the extension distance of the power supply tongue. This effectively eliminates the influence of the gap between the edge of the door and the edge of the door frame on the conduction of the power supply tongue and the electrode, ensuring that the power supply tongue and the electrode can conduct electricity reliably.

[0008] Preferably, the diameters of both the built-in and external through holes are smaller than that of the return spring, so that the return spring is clamped and positioned between the positioning seat and the power supply tongue. This ensures that the adjusting bolt can pass smoothly through the built-in and external through holes and rotate freely, and also allows the return spring to be clamped by the periphery of the corresponding ports of the built-in and external through holes, so that the return spring contracts and accumulates the preload force to drive the power supply tongue to reset.

[0009] Preferably, a power supply control board is provided between the positioning seat and the bottom wall of the power supply groove. Two vertically staggered and mutually insulated power supply pieces are provided on the power supply end face of the power supply tongue. A bracket for fixing the power supply pieces is provided inside the power supply tongue. The power supply control board receives external power and conducts electricity independently to each power supply piece. There are two mutually isolated power supply pieces, used to conduct positive and negative electrodes respectively. The power supply control board is clamped and fixed between the positioning seat and the bottom wall of the power supply groove, ensuring that the power supply control board does not obstruct the extension and retraction of the power supply tongue. The power supply control board receives external power and conducts electricity to the power supply pieces through wires, thereby facilitating electrode conduction and energy acquisition. The power supply pieces are located on the power supply end face of the power supply tongue, facilitating contact and conduction between corresponding electrodes. The bracket is located inside the power supply tongue, and adjusting bolts are connected in series to fix the power supply tongue and the bracket. The bracket is provided with a support platform for fixing the power supply pieces, ensuring that the power supply pieces are exposed on the power supply end face of the power supply tongue.

[0010] Preferably, the section of the adjusting bolt exposed above the anti-loosening nut has a slot for a limiting card to be engaged and fixed, thereby preventing the anti-loosening nut from disengaging from the adjusting bolt and adjusting the extension distance of the power supply terminal. The limiting card, engaged in the slot, limits the anti-loosening nut, preventing it from disengaging from the adjusting bolt due to excessive rotation, and also limits the extension range of the power supply tongue.

[0011] Preferably, the power supply channel sidewall is provided with a guide groove, and the power supply tongue sidewall is provided with a slider that can slide along the guide groove to limit the range of motion of the power supply tongue. The slider is locked in the guide groove, which limits the extension and retraction range of the power supply tongue and limits and guides the extension and retraction direction of the power supply tongue, ensuring that the power supply tongue extends and retracts along a preset path within a preset range.

[0012] Preferably, the lock body is provided with a power receiving groove. The power receiving assembly includes a connector fixed to the battery by fasteners, a power receiving control board, and a panel base. The connector, power receiving control board, and panel base are stacked sequentially on the end face of the battery and enclose a power receiving channel to guide the extension and retraction of the electrodes. A return spring is provided in the power receiving channel to drive the electrodes back to their original position, with the power receiving end exposed on the panel base. The power receiving groove is provided on the lock body, and the groove opening faces the strike plate when the door is closed, allowing the electrodes to be exposed through the groove opening and to conduct electricity by contacting the power supply tongue. The connector not only fixes the power receiving control board, ensuring that the relative positions of the power receiving control board, connector, and panel base are fixed, but also ensures that the enclosed power receiving channel will not deform. This allows the power receiving channel to provide space for the extension and retraction of the electrodes, ensuring that the electrodes can extend and retract within a preset range along a preset path. The reset spring is clamped between the electrode and the connector, and uses its own deformation to accumulate preload force to drive the electrode to extend outward and reset, ensuring that the electrode can fit tightly against the end face of the power supply tongue.

[0013] Preferably, the electrodes are two in number and vertically staggered. The power receiving control board is independently connected to each electrode via wires, allowing the battery power receiving control board to receive power from the electrodes. The power receiving control board is connected to the corresponding electrode via wires, thereby achieving positive and negative polarity connection and providing electrical energy to the battery.

[0014] Preferably, both ends of the power receiving groove are provided with screw holes, and the panel base covers the ends of the power receiving groove and is screwed and locked to the corresponding screw holes with fasteners. The end of the power receiving channel is exposed outside the panel base, allowing the electrode to be exposed through the opening on the panel base. The electrode is provided with a limiting ring, and the diameter of the opening is between the diameter of the electrode receiving end and the diameter of the limiting ring, which facilitates the electrode to be exposed through the opening and prevents the electrode from detaching from the power receiving channel.

[0015] Preferably, the strike plate is embedded within the side edge of the door frame surrounding the door, and the lock body is disposed within the side edge of the door. The door swings around a hinge, switching between an open and closed state. When the door is in the closed state, the receiving end of the electrode contacts the power supply end of the power supply tongue. When the door is in the closed state, the electrode contacts and conducts electricity with the power supply tongue, allowing the battery to receive power and charge. When the door is in the open state, the electrode disengages from the power supply tongue, and the battery provides power to the lock.

[0016] The beneficial effects of this utility model are as follows: a power supply component and a power receiving component are respectively provided on the strike plate and the lock. The electrode can contact the power supply tongue to conduct electricity when the door is closed, so that the battery can receive power from the power supply component and charge when the door is closed, providing the power required for the operation of the lock. This not only reduces the difficulty of installation and facilitates assembly and maintenance, but also allows the battery to store electrical energy and continuously power the lock, improving the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the disassembled structure of the lock;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the power receiving component;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the power supply component;

[0020] Figure 4 A schematic diagram of the assembly structure of the power supply tongue;

[0021] Figure 5 This is a partial cross-sectional view of the latch plate.

[0022] In the diagram: 1. Snap plate, 2. Lock body, 3. Power supply component, 4. Power receiving component, 5. Battery, 6. Power supply tongue, 7. Electrode, 8. Conical surface, 9. Inclined surface, 10. Power supply groove, 11. Positioning seat, 12. Guide sleeve, 13. Return spring, 14. Adjusting bolt, 15. Internal through hole, 16. External through hole, 17. Power supply control board, 18. Power supply piece, 19. Limiting card, 20. Slot, 21. Anti-loosening nut, 22. Connector, 23. Power receiving control board, 24. Panel base, 25. Return spring, 26. Power receiving groove, 27. Screw hole, 28. Bracket. Detailed Implementation

[0023] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 and 2 The lock shown comprises a strike plate 1 with a latch hole and a lock body 2 with a bolt. A constant power supply mechanism is provided between the strike plate 1 and the lock body 2. This mechanism includes a power supply component 3 mounted on the strike plate 1 and equipped with a power supply bolt 6, and a power receiving component 4 mounted on the lock body 2, equipped with a battery 5 and an electrode 7. When the lock body 2 swings with the door and engages with the latch hole via the bolt, the electrode 7 and the power supply bolt 6 extend and retract, engaging and conducting electricity. This allows the power supply bolt 6 to supply power to the battery 5 via the electrode 7 when the door is closed. By mounting the power supply component 3 on the strike plate 1 and the lock body respectively, and by allowing the electrode 7 to engage with the power supply bolt 6 when the door is closed, the battery 5 can receive power from the power supply component 3 and be charged when the door is closed, providing the necessary power for the lock's operation. This reduces installation difficulty, facilitates assembly and maintenance, and allows the battery 5 to store energy and continuously power the lock, improving the user experience.

[0025] In actual operation, the strike plate 1 is embedded in the side edge of the door frame surrounding the door body, and the lock body 2 is set in the side edge of the door body. The door body swings around the door hinge and switches between open and closed states. When the door body switches to the closed state, the receiving end of the electrode 7 abuts against the power supply end of the power supply tongue 6. The door body has a door hinge on one side and a lock body 2 on the other side. The strike plate 1 is set on the side of the door frame corresponding to the lock, so that the door body swings around the door hinge and switches between open and closed states. When the door body switches to the closed state, the lock body 2 and the strike plate 1 cooperate to lock tightly, and the electrode 7 on the receiving component 4 abuts and connects with the power supply tongue 6 on the power supply component 3, so that the battery 5 switches from the power supply state to the charging state.

[0026] In actual operation, both the electrode 7 and the power supply tongue 6 can perform linear telescopic movements. The electrode 7 and the power supply tongue 6 can avoid each other by cooperating to contract, so that the electrode 7 can swing synchronously with the door to the plane where the power supply tongue 6 is located. They can also cooperate to extend and achieve close contact with each other, thereby ensuring the reliability of the wire.

[0027] In actual operation, when the door is in the open state, the electrode 7 swings with the door and disengages from the power supply tongue 6; when the door is in the closed state, the electrode 7, the power supply tongue 6, the door frame and the door are all in the same plane, and the receiving end of the electrode 7 and the power supply end of the power supply tongue 6 abut against each other and fit tightly together, so that the electrode 7 and the power supply tongue 6 are connected.

[0028] In actual operation, the electrode 7 is shaped like a frustum, with a guiding frustum surface 8 formed around its power receiving end. The power supply end of the power supply tongue 6 is provided with a guiding inclined surface 9. The door swings around the door hinge. The frustum surface 8 and the inclined surface 9 abut against each other and drive the electrode 7 and the power supply tongue 6 to retract and avoid each other, so that the electrode 7 abuts against the corresponding end face of the power supply tongue 6 when the door swings to the closed position. The electrode 7 swings around the door hinge, and the inclined surface 9 of the power supply tongue 6 is on the swing path of the frustum surface 8. When the door approaches the closed state, the frustum surface 8 of the electrode 7 abuts against the inclined surface 9 of the power supply tongue 6, converting the circumferential force of the electrode 7 into a linear force that drives the electrode 7 and the power supply tongue 6 to separate in opposite directions. Then, by squeezing the return spring 13 and the reset spring 25 respectively, a pre-tightening force is obtained to drive the electrode 7 and the power supply tongue 6 to move towards each other. When the door switches to the closed state, the receiving end face of the electrode 7 and the power supply end face of the power supply tongue 6 are in close contact and conduction under the action of the pre-tightening force. This ensures that the door can switch to the closed state smoothly, and also uses the retractable electrode 7 and the power supply tongue 6 to eliminate the influence of the gap between the door and the door frame on the conductivity reliability, preventing the electrode 7 and the power supply tongue 6 from failing to make contact and conduction due to the excessive gap between the door and the door frame.

[0029] In actual operation, a power supply control board 17 is provided between the positioning seat 11 and the bottom wall of the power supply groove 10, and two vertically staggered and mutually insulated power supply plates 18 are provided on the power supply end face of the power supply tongue 6 (e.g. Figure 4 As shown), the power supply control board 17 receives external power and is independently connected to each power supply chip 18 through conductivity. The electrodes 7 are two in number and vertically staggered (e.g., ...). Figure 5 As shown, the power receiving control board 23 is independently connected to each electrode 7 via wires, so that the power receiving control board 23 of the battery 5 receives power from the electrode 7. There are two electrodes 7 and one corresponding to each other. The positive and negative terminals are connected by contact between the two electrodes to achieve positive and negative conduction, thereby charging the battery 5.

[0030] In actual operation, the locking plate 1 is provided with a power supply groove 10, and the power supply assembly 3 includes a positioning seat 11 disposed in the power supply groove 10 and a guide sleeve 12 disposed at the opening of the power supply groove 10 (e.g., Figure 3 As shown, the guide sleeve 12 has a power supply channel, and the power supply tongue 6 is mounted on the positioning seat 11 by an adjusting bolt 14 with a return spring 13, so that the power supply tongue 6 can extend and retract along the power supply channel and return to its original position exposed at the opening of the power supply groove 10. The opening of the power supply groove 10 is opened on the wall surface of the latch plate 1 facing the door body, so that the power supply tongue 6 can be exposed and extended for easy connection with the electrode 7.

[0031] In actual operation, the positioning seat 11 is fixed to the bottom of the power supply slot 10 by fasteners. The positioning seat 11 has an internal through hole 15, and the power supply tongue 6 has an external through hole 16. The adjusting bolt 14 passes through the external through hole 16, the return spring 13, and the internal through hole 15 from the outside to the inside, and is screwed to the anti-loosening nut 21. This allows the return spring 13 to compress and deform when the power supply tongue 6 is retracted into the power supply slot 10 under force, and to accumulate a preload force to drive the power supply tongue 6 back to its original position. The tail end of the adjusting bolt 14 is exposed on the power supply end face of the power supply tongue 6. The anti-loosening nut 21 is inserted into the internal through hole 15 and locked to limit rotation. The user can drive the adjusting bolt 14 to rotate and adjust the relative position between it and the anti-loosening nut 21. This can effectively control the extension distance of the power supply tongue 6, ensuring that the inclined surface 9 matches and abuts the truncated cone surface 8, and can also control the extension and retraction range of the power supply tongue 6, ensuring that the power supply tongue 6 and the electrode 7 can close the door by retracting and avoiding each other. The cross-section of the built-in through hole 15 is non-circular and matches the peripheral contour of the lock nut 21, ensuring that the lock nut 21 is inserted into the built-in through hole 15 without rotation.

[0032] In actual operation, the diameters of both the built-in through hole 15 and the external through hole 16 are smaller than that of the return spring 13, so that the return spring 13 is clamped and positioned between the positioning seat 11 and the power supply tongue 6. The return spring 13 can deform synchronously when the power supply tongue 6 extends and retracts. The adjusting bolt 14 can guide the deformation of the return spring 13, ensuring that the return spring 13 can extend and retract along its axis, thereby ensuring that the power supply tongue 6 can return to its preset path.

[0033] In actual operation, the section of the adjusting bolt 14 exposed above the anti-loosening nut 21 has a slot 20 for the limiting card 19 to be engaged and fixed, thereby preventing the anti-loosening nut 21 from disengaging from the adjusting bolt 14 and adjusting the extension distance of the power supply end. The limiting card 19 is engaged in the slot 20 and its relative position to the adjusting bolt 14 is fixed. The anti-loosening nut 21 is located between the limiting card 19 and the tail end of the adjusting bolt 14, ensuring that the anti-loosening nut 21 can only be rotated and adjusted within a preset range.

[0034] In actual operation, the side wall of the power supply channel is provided with a guide groove, and the side wall of the power supply tongue 6 is provided with a slider that can slide along the guide groove to limit the range of motion of the power supply tongue 6. There are two sliders, which are placed on the two side walls of the power supply tongue 6 respectively. By cooperating with the corresponding guide groove, they ensure that the power supply tongue 6 moves within a preset range along a preset path in a preset posture.

[0035] In actual operation, the lock body 2 is provided with a power receiving groove 26. The power receiving assembly 4 includes a connector 22, a power receiving control board 23, and a panel base 24, which are fixed to the battery 5 by fasteners. The connector 22, the power receiving control board 23, and the panel base 24 are stacked sequentially on the end face of the battery 5 and form a power receiving channel that guides the extension and retraction of the electrode 7. A return spring 25 is provided in the power receiving channel to drive the electrode 7 back to the power receiving end exposed on the panel base 24. The power receiving assembly 4 is inserted into the power receiving groove 26. The power receiving control board 23 is located between the panel base 24 and the connector 22. The power receiving channel passes through the power receiving control board 23. The electrode 7 and the return spring 25 are located in the power receiving channel, which effectively utilizes the space between the panel base 24 and the connector 22, improves space utilization efficiency, and also limits the offset of the return spring 25, ensuring that the return spring 25 can extend and retract along its axis.

[0036] In actual operation, the two ends of the opening of the power receiving trough 26 are provided with screw holes 27. The panel base 24 covers the end edges of the opening of the power receiving trough 26 and is locked in place by fasteners to the corresponding screw holes 27. The screw holes 27 are located on the outer sides of both ends of the opening of the power receiving trough 26. The panel base 24 can cover the screw holes 27 and the fasteners screwed to the screw holes 27 can fix the panel base 24, preventing the power receiving component 4 from detaching from the power receiving trough 26.

Claims

1. A lock with a telescopic abutment-type constant power supply mechanism, comprising a strike plate (1) with a strike hole and a lock body (2) with a bolt, characterized in that, A constant power supply mechanism is provided between the strike plate (1) and the lock body (2). The constant power supply mechanism includes a power supply component (3) with a power supply tongue (6) on the strike plate (1) and a power receiving component (4) with a battery (5) and an electrode (7) on the lock body (2). When the lock body (2) swings with the door and is locked by the strike hole through the strike tongue, the electrode (7) and the power supply tongue (6) extend and retract to contact and conduct electricity, so that the power supply tongue (6) supplies power to the battery (5) through the electrode (7).

2. The lock with a telescopic abutment-type constant power supply mechanism according to claim 1, characterized in that, The electrode (7) is truncated cone-shaped, with a guiding truncated cone surface (8) formed around its power receiving end. The power supply end of the power supply tongue (6) is provided with a guiding inclined surface (9). The door swings around the door hinge. The truncated cone surface (8) and the inclined surface (9) abut against each other and drive the electrode (7) and the power supply tongue (6) to retract and avoid each other, so that the electrode (7) abuts against the corresponding end face of the power supply tongue (6) when the door swings to the closed position.

3. A lock with a telescopic abutment-type constant power supply mechanism according to claim 2, characterized in that, The locking plate (1) is provided with a power supply groove (10). The power supply assembly (3) includes a positioning seat (11) set in the power supply groove (10) and a guide sleeve (12) set at the opening of the power supply groove (10). The guide sleeve (12) is provided with a power supply channel. The power supply tongue (6) is installed on the positioning seat (11) by an adjusting bolt (14) with a return spring (13) so that the power supply tongue (6) can extend and retract along the power supply channel and reset to its original position exposed at the opening of the power supply groove (10).

4. A lock with a telescopic abutment-type constant power supply mechanism according to claim 3, characterized in that, The positioning seat (11) is fixed to the bottom of the power supply slot (10) by fasteners. The positioning seat (11) is provided with an internal through hole (15), and the power supply tongue (6) is provided with an external through hole (16). The adjusting bolt (14) passes through the external through hole (16), the return spring (13), and the internal through hole (15) in sequence from the outside to the inside and is screwed to the anti-loosening nut (21) so that the return spring (13) is compressed and deformed when the power supply tongue (6) is retracted into the power supply slot (10) under force and accumulates the preload force to drive the power supply tongue (6) to reset to the original position.

5. A lock with a telescopic abutment-type constant power supply mechanism according to claim 4, characterized in that, The diameters of the built-in perforation (15) and the external perforation (16) are both smaller than the return spring (13), so that the return spring (13) is clamped and positioned between the positioning seat (11) and the power supply tongue (6).

6. A lock with a telescopic abutment-type constant power supply mechanism according to claim 4, characterized in that, A power control board (17) is provided between the positioning seat (11) and the bottom wall of the power supply groove (10). Two vertically staggered and mutually insulated power supply pieces (18) are provided on the power supply end face of the power supply tongue (6). A bracket (28) for fixing the power supply pieces (18) is provided inside the power supply tongue (6). The power control board (17) receives external power and is independently connected to each power supply piece (18) through conductivity. Alternatively, a slot (20) for the limiting card (19) to be fixed is provided on the section of the adjusting bolt (14) exposed outside the anti-loosening nut (21) to limit the anti-loosening nut (21) from disengaging from the adjusting bolt (14) and adjust the extension distance of the power supply end. Alternatively, a guide groove is provided on the side wall of the power supply channel, and a slider that can slide along the guide groove is provided on the side wall of the power supply tongue (6) to limit the range of motion of the power supply tongue (6).

7. A lock with a telescopic abutment-type constant power supply mechanism according to any one of claims 1-6, characterized in that, The lock body (2) is provided with a power receiving groove (26). The power receiving component (4) includes a connector (22), a power receiving control board (23), and a panel base (24) that are fixed to the battery (5) by fasteners. The connector (22), the power receiving control board (23), and the panel base (24) are stacked on the end face of the battery (5) in sequence and surround to form a power receiving channel for guiding the extension and retraction of the electrode (7). The power receiving channel is provided with a return spring (25) that drives the electrode (7) to return to the power receiving end exposed on the panel base (24).

8. A lock with a telescopic abutment-type constant power supply mechanism according to claim 7, characterized in that, The electrodes (7) are two in number and vertically staggered. The power receiving control board (23) is independently connected to each electrode (7) through wires so that the power receiving control board (23) of the battery (5) receives power from the electrodes (7).

9. A lock with a telescopic abutment-type constant power supply mechanism according to claim 7, characterized in that, The power receiving groove (26) has screw holes (27) at both ends of the groove opening. The panel base (24) covers the end edge of the power receiving groove (26) and is screwed and locked to the corresponding screw holes (27) by fasteners.

10. A lock with a telescopic abutment-type constant power supply mechanism according to any one of claims 1-6, characterized in that, The latch plate (1) is embedded in the side edge of the door frame that encloses the door body, and the lock body (2) is set in the side edge of the door body. The door body swings around the door hinge and switches between the open and closed states. When the door body switches to the closed state, the receiving end of the electrode (7) abuts against the power supply end of the power supply tongue (6).

Images