Simple magnetic attraction lock

Abstract

The invention belongs to the field of magnetic attraction locks, and relates to a simple magnetic attraction lock which comprises a lock shell, a magnetic attraction spring bolt is arranged in the lock shell, the rear end of the magnetic attraction spring bolt is connected with a spring bolt plate, a shifting plate is further rotationally arranged in the lock shell, a pull plate capable of sliding up and down is further arranged in the lock shell, a guide inclined face is formed on the spring bolt plate, and a guide protrusion is arranged on the pull plate and corresponds to the guide inclined face. When the pulling plate moves upwards, the guiding protrusion abuts against the guiding inclined face so that the spring bolt plate can drive the magnetic attraction spring bolt to retract into the lock shell. A shifting lug is further formed in the middle of the pulling plate, and the shifting plate extends towards the shifting lug to form a shifting end; a back locking lug is arranged at the lower end part of the pulling plate; a lock cylinder is arranged on the side edge, corresponding to the back locking lug, of the lock shell; in the unlocking state, the shifting end is arranged below the shifting lug, and in the counter locking state, the lock cylinder rotates to enable the pull plate to move downwards through the counter locking lug, so that the shifting lug of the pull plate is arranged on the side edge of the shifting end and blocks the shifting end; the device has the advantages of being simple in structure and capable of achieving unlocking and counter locking functions on the premise that parts are few.

Description

Technical Field

[0001] The invention belongs to the field of magnetic locks and relates to a simple magnetic lock. Background Art

[0002] Traditional magnetic locks have a complex structure and numerous parts inside the lock housing, which makes installation difficult. The large number of parts also increases production costs and makes the structure more unstable. Summary of the Invention

[0003] In view of the above problems, the present invention provides a simple magnetic lock, which has the advantages of simple structure, few parts, and can still realize the unlocking and anti-locking functions.

[0004] The object of the present invention is achieved like this: A simple magnetic lock comprises a lock housing, a magnetic lock tongue being arranged in the lock housing, a lock tongue hole being formed at the front end of the lock housing for the magnetic lock tongue to extend out, a lock tongue plate being connected to the rear end of the magnetic lock tongue, a toggle plate being rotatably arranged in the lock housing, a square core hole being provided in the toggle plate, a pull plate being slidable up and down in the lock housing, a guide slope being formed on the lock tongue plate, and a guide protrusion being provided on the pull plate corresponding to the guide slope. When the pull plate is moved up, the guide protrusion presses against the guide slope to cause the lock tongue plate to drive the magnetic lock tongue to retract into the lock housing; The middle portion of the pull plate is further formed with a toggle lug, and the toggle plate extends a toggle end toward the toggle lug; The lower end of the pull plate is provided with a reverse locking lug, and the side of the lock housing corresponding to the reverse locking lug is provided with a lock core; When the lock is unlocked, the toggle end is arranged below the toggle lug. When the lock is locked, the lock core rotates through the locking lug to move the pull plate downward, so that the toggle lug of the pull plate is arranged on the side of the toggle end and blocks the toggle end.

[0005] According to the present invention, when unlocking is required, the handle is pulled, and the square core of the handle drives the toggle plate to rotate, and the toggle end of the toggle plate drives the pull plate to move up, and the guide protrusion of the pull plate moves up to drive the lock plate and the magnetic lock tongue to retract into the lock shell to achieve unlocking. When reverse locking is required, the lock core rotates to move the pull plate downward through the reverse locking lug, so that the toggle lug of the pull plate is set on the side of the toggle end and blocks the toggle end, and the toggle end cannot drive the pull plate to move up, thereby achieving reverse locking. The present invention only requires the magnetic lock tongue, lock tongue plate, toggle plate, pull plate and lock core to be arranged in the lock shell to achieve the functions of unlocking and reverse locking. The structure is simple, the number of parts is small, the structural stability is improved, the installation is convenient, and the cost is reduced.

[0006] The present invention is further configured such that: the lower end of the guiding slope is farther away from the magnetic lock tongue than the upper end, and the guiding protrusion is arranged below the guiding slope.

[0007] The present invention is further configured as follows: a guide block is formed on the upper end of the pull plate, a vertical pull plate guide groove is formed on the lock shell, and the guide block is slidably arranged in the pull plate guide groove.

[0008] The arrangement of the guide block and the pull plate guide groove can guide the vertical movement of the pull plate, and the two ends of the pull plate guide groove can also play a limiting role.

[0009] The present invention is further configured as follows: a vertical guide slot is formed on the lower end of the pull plate, and the lock housing is provided with a guide lug corresponding to the guide slot, and the guide lug is provided in the guide slot.

[0010] The guide chute and guide lugs not only guide the vertical movement of the pull plate, but also act as limiters at both ends. Together with the pull plate guide chute and guide block, they can achieve simultaneous guiding and limiting effects on both the upper and lower sides, resulting in even better guiding and limiting effects.

[0011] The present invention is further configured as follows: a reset lug is further formed on the pull plate, and the reset lug is arranged below the toggle end.

[0012] Through the design of the reset lug, when the handle is turned in the opposite direction or under the action of the torsion spring, the toggle end can push the reset lug downward, so that the pull plate returns to the state before unlocking, making it convenient to open it next time.

[0013] The present invention is further configured such that: the toggle end is arranged between the reset lug and the toggle lug.

[0014] With the above arrangement, the pull plate can be moved up by rotating the toggle end forward, and can be reset by rotating the toggle end reversely.

[0015] The present invention is further configured as follows: the lock housing is further provided with a torsion spring corresponding to the toggle plate, the torsion spring abuts against the side of the toggle plate away from the magnetic lock tongue, and the torsion spring always gives the toggle end of the toggle plate a force to drive the reset lug to move downward.

[0016] The present invention is further configured as follows: a limiting groove is formed on the upper end of the toggle plate, and a limiting column is provided on the lock housing corresponding to the limiting groove, and the limiting column is arranged in the limiting groove.

[0017] The design of the limiting slot and the limiting column can limit the rotation range of the toggle plate, making it more convenient to use.

[0018] The present invention is further configured as follows: a transverse groove is formed on the lock tongue plate, and the limiting column is arranged in the transverse groove.

[0019] By setting the transverse groove, the range of movement of the lock tongue plate can be limited, making it more convenient to use.

[0020] The present invention is further configured as follows: a positioning spring piece is fixed on the pull tab, a positioning protrusion is provided on the positioning spring piece, and two positioning holes are formed on the lock shell, namely an anti-locking positioning hole and a normal positioning hole. In the normal state, the positioning protrusion is set in the normal positioning hole, and in the anti-locking state, the positioning protrusion moves to the anti-locking positioning hole.

[0021] The positioning spring allows the user to clearly know whether the door is locked in place or unlocked to normal state, making it more convenient to use.

[0022] Compared with the existing technology, the present invention has the following outstanding and beneficial technical effects: when unlocking is required, the handle is pulled, and the square core of the handle drives the toggle plate to rotate, and the toggle end of the toggle plate drives the pull plate to move up, and the guide protrusion of the pull plate moves up to drive the lock plate and the magnetic lock tongue to retract into the lock shell to achieve unlocking. When reverse locking is required, the lock core rotates to move the pull plate downward through the reverse locking lug, so that the toggle lug of the pull plate is set on the side of the toggle end and blocks the toggle end, and the toggle end cannot drive the pull plate to move up, thereby achieving reverse locking. The present invention only requires the magnetic lock tongue, lock tongue plate, toggle plate, pull plate and lock core to be arranged in the lock shell to achieve the functions of unlocking and reverse locking. It has a simple structure, few parts, improved structural stability, convenient installation, and reduced costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the present invention in the closed state.

[0026] Figure 3 This is a schematic structural diagram of the present invention when the door is open.

[0027] Figure 4 It is a schematic structural diagram of the present invention when the door is reset after opening.

[0028] Figure 5 It is a structural schematic diagram of the present invention in the anti-lock state.

[0029] Figure 6 It is a structural diagram of the lock housing, pull plate and toggle plate.

[0030] Figure 7 It is a structural diagram of the lock housing.

[0031] Figure 8 Schematic diagram of the structure of the pull plate and the toggle plate.

[0032] Figure 9 Schematic diagram of the structure of the pull plate.

[0033] 1-lock housing; 2-magnetic lock bolt; 3-lock bolt hole; 4-lock bolt plate; 5-sliding plate; 6-square core hole; 7-pull plate; 8-guide slope; 9-guide protrusion; 10-sliding lug; 11-sliding end; 12-anti-locking lug; 13-lock cylinder; 14-guide block; 15-pull plate guide groove; 16-guide slide groove; 17-guide lug; 18-reset lug; 19-torsion spring; 20-limiting groove; 21-limiting column; 22-transverse groove; 23-positioning spring; 24-positioning protrusion; 25-anti-locking positioning hole; 26-normal positioning hole. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0035] A simple magnetic lock includes a lock housing 1, a magnetic lock tongue 2 is provided in the lock housing 1, a lock tongue hole 3 is formed at the front end of the lock housing 1 for the magnetic lock tongue 2 to extend, a lock tongue plate 4 is connected to the rear end of the magnetic lock tongue 2, a toggle plate 5 is rotatably provided in the lock housing, a square core hole 6 is provided in the toggle plate 5, a pull plate 7 that can slide up and down is further provided in the lock housing 1, a guide slope 8 is formed on the lock tongue plate 4, and a guide protrusion 9 is provided on the pull plate 7 corresponding to the guide slope 8. When the pull plate 7 moves upward, the guide protrusion 9 presses against the guide slope 8 to cause the lock tongue plate 4 to drive the magnetic lock tongue 2 to retract into the lock housing; The pull plate 7 is also formed with a toggle lug 10 in the middle, and the toggle plate 5 extends a toggle end 11 toward the toggle lug 10; The lower end of the pull plate 7 is provided with an anti-locking lug 12, and the side of the lock housing corresponding to the anti-locking lug is provided with a lock core 13; When in the unlocked state, the toggle end 11 is set below the toggle lug 10. When in the locked state, the lock core 13 rotates through the anti-locking lug 12 to move the pull plate 7 downward, so that the toggle lug 10 of the pull plate is set on the side of the toggle end 11 and blocks the toggle end 11.

[0036] The lower end of the guiding slope 8 is farther away from the magnetic lock tongue 2 than the upper end thereof, and the guiding protrusion 9 is arranged below the guiding slope.

[0037] A guide block 14 is formed on the upper end of the pull plate 7, and a vertical pull plate guide groove 15 is formed on the lock housing 1. The guide block 14 is slidably arranged in the pull plate guide groove 15. The arrangement of the guide block 14 and the pull plate guide groove 15 can guide the vertical movement of the pull plate 7, and the two ends of the pull plate guide groove 15 can also serve as limiters.

[0038] A vertical guide slot 16 is formed at the lower end of the pull plate 7. The lock housing 1 is provided with a guide lug 17 corresponding to the guide slot 16, which is positioned within the guide slot 16. The guide slot 16 and lug 17 not only guide the vertical movement of the pull plate 7 but also act as position limiters at both ends of the guide slot 16. This, in conjunction with the pull plate guide slot 15 and guide block 14, enables simultaneous guiding and position limiting from both sides, resulting in enhanced guiding and position limiting effects.

[0039] The pull plate 7 is also formed with a reset lug 18, which is arranged below the toggle end 11. Due to the design of the reset lug 18, when the handle is turned in the opposite direction or under the action of the torsion spring, the toggle end 11 can push the reset lug 18 downward, so that the pull plate 7 moves down to the state before unlocking, making it easier to open the door next time.

[0040] The toggle end 11 is arranged between the reset lug 18 and the toggle lug 10. Through the above arrangement, the pull plate 7 can be moved up by rotating the toggle end 11 forward, and the pull plate 7 can be moved down and reset by reversing the toggle end 11.

[0041] The lock housing 1 is further provided with a torsion spring 19 corresponding to the toggle plate 5. The torsion spring 19 abuts against the side of the toggle plate 5 away from the magnetic lock tongue 2. The torsion spring 19 always gives the toggle end 11 of the toggle plate 5 a force to drive the reset lug 18 to move downward.

[0042] The upper end of the toggle plate 5 is formed with a limit groove 20, and the lock housing is provided with a limit post 21 corresponding to the limit groove 20, and the limit post 21 is arranged in the limit groove 20. Through the design of the limit groove 20 and the limit post 21, the range of rotation of the toggle plate 5 can be limited, which is more convenient to use.

[0043] A transverse groove 22 is formed on the bolt plate 4, and the limiting column 21 is arranged in the transverse groove 22. Through the arrangement of the transverse groove 22, the range of movement of the bolt plate 4 can be limited, which is more convenient to use.

[0044] A positioning spring 23 is also fixed to the pull tab 7, and a positioning protrusion 24 is provided on the positioning spring 23. The lock housing is formed with two positioning holes, namely a reverse locking position hole 25 and a normal position hole 26. In the normal position, the positioning protrusion 24 is located in the normal position hole 26. In the reverse locking state, the positioning protrusion 24 moves into the reverse locking position hole 25. The positioning spring 23 allows the user to clearly determine whether the reverse locking state is in place or the normal unlocking state, making it more convenient to use.

[0045] Working principle of the present invention: To unlock, the handle is pulled, and the handle's square core rotates the toggle plate 5. The toggle end 11 of the toggle plate moves the pull plate 7 upward. The upward movement of the guide protrusion 9 of the pull plate 7 causes the bolt plate 4 and the magnetic bolt 2 to retract into the lock housing 1, unlocking the door. After unlocking, the handle is released, and the toggle plate 5, driven by the torsion spring 19, returns to its original position, causing the retaining groove 20 to move away from the magnetic bolt and rest against the retaining post 21. When the toggle plate 5 returns to its original position, the toggle end 11 drives the reset lug 18 downward, thereby moving the pull plate 7 downward and returning the pull plate 7 to its normal position. Under normal conditions, the positioning protrusion 24 of the positioning spring 23 is located within the normal positioning hole 25.

[0046] When reverse locking is required, the lock core 13 rotates through the reverse locking lug 12 to move the pull plate 7 downward, so that the toggle lug 10 of the pull plate is set on the side of the toggle end 11 and blocks the toggle end 11. The toggle end 11 cannot drive the pull plate 7 to move upward, thereby achieving reverse locking.

[0047] The invention has the characteristics of simple structure and few parts, and can still realize the unlocking and anti-locking functions.

[0048] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A simple magnetic lock, comprising a lock housing, a magnetic lock tongue disposed in the lock housing, a lock tongue hole formed at the front end of the lock housing for the magnetic lock tongue to extend out, a lock tongue plate connected to the rear end of the magnetic lock tongue, a toggle plate rotatably disposed in the lock housing, a square core hole disposed in the toggle plate, and characterized in that: The lock housing is further provided with a pull plate that can slide up and down, and the lock bolt plate is formed with a guide inclined surface, and the pull plate is provided with a guide protrusion corresponding to the guide inclined surface. When the pull plate moves up, the guide protrusion presses against the guide inclined surface to cause the lock bolt plate to drive the magnetic lock bolt to retract into the lock housing; The middle portion of the pull plate is further formed with a toggle lug, and the toggle plate extends a toggle end toward the toggle lug; The lower end of the pull plate is provided with a reverse locking lug, and the side of the lock housing corresponding to the reverse locking lug is provided with a lock core; When the lock is unlocked, the toggle end is arranged below the toggle lug. When the lock is locked, the lock core rotates through the locking lug to move the pull plate downward, so that the toggle lug of the pull plate is arranged on the side of the toggle end and blocks the toggle end.

2. A simple magnetic lock according to claim 1, characterized in that: The lower end of the guiding slope is farther away from the magnetic lock tongue than the upper end, and the guiding protrusion is arranged below the guiding slope.

3. A simple magnetic lock according to claim 2, characterized in that: A guide block is formed on the upper end of the pull plate, a vertical pull plate guide groove is formed on the lock shell, and the guide block is slidably arranged in the pull plate guide groove.

4. A simple magnetic lock according to claim 1 or 3, characterized in that: A vertical guide slot is formed at the lower end of the pull plate, and a guide lug is provided on the lock housing corresponding to the guide slot, and the guide lug is provided in the guide slot.

5. The simple magnetic lock according to claim 1, characterized in that: The pull plate is further formed with a reset lug, which is arranged below the toggle end.

6. The simple magnetic lock according to claim 5, characterized in that: The dial end is arranged between the reset lug and the dial lug.

7. The simple magnetic lock according to claim 5, characterized in that: The lock housing is further provided with a torsion spring corresponding to the toggle plate, and the torsion spring abuts against a side of the toggle plate away from the magnetic lock tongue.

8. The simple magnetic lock according to claim 1, characterized in that: A limiting groove is formed on the upper end of the toggle plate, and a limiting column is provided on the lock housing corresponding to the limiting groove, and the limiting column is arranged in the limiting groove.

9. The simple magnetic lock according to claim 8, characterized in that: A transverse groove is formed on the lock tongue plate, and the limiting column is arranged in the transverse groove.

10. The simple magnetic lock according to claim 1, characterized in that: A positioning spring is also fixed on the pull tab, and a positioning protrusion is provided on the positioning spring. Two positioning holes are formed on the lock shell, namely an anti-locking positioning hole and a normal positioning hole. In the normal state, the positioning protrusion is set in the normal positioning hole. In the anti-locking state, the positioning protrusion moves to the anti-locking positioning hole.

Images