Magnetic attraction lock cylinder

Abstract

The utility model discloses a magnetic attraction lock cylinder which comprises a lock shell, a lock frame arranged in the lock shell in a sliding mode, a spring bolt in linkage with the lock frame and a rotatable dial wheel, the spring bolt can stretch out or retract into the lock shell, the dial wheel is rotated to enable the lock frame to drive the spring bolt to be locked back to the lock shell, the spring bolt comprises a lock head arranged on the lock frame, a containing groove is formed in the lock head, and the containing groove is communicated with the lock frame. A magnetic part and a positioning plate are arranged in the containing groove, the positioning plate is arranged in the containing groove, a first positioning column is arranged on the positioning plate, a second positioning column is arranged in the lock shell, a tension spring is arranged between the first positioning column and the second positioning column, and the first positioning column and the second positioning column are sleeved with the two ends of the tension spring respectively. A spring is replaced by the tension spring, one end of the tension spring is fixed to the lock head, the other end of the tension spring is arranged on the second positioning column in a sleeved mode when the lock frame is installed, and installation and positioning of the lock frame can be rapidly completed.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a magnetic lock core. Background Art

[0002] A door lock is a piece of hardware installed on a door to maintain the security of a room or personal storage space. Its basic structure includes a lock tongue that can be extended and retracted under the action of external force, which cooperates with a buckle box installed on the door frame to prevent the door from being opened by accident such as being blown by the wind.

[0003] The prior application Chinese patent number CN202321295979.0 discloses a magnetic lock core, including a lock shell, a lock tongue and a rotatable dial wheel are arranged in the lock shell, the lock tongue can extend or retract into the lock shell, a mounting plate is arranged at one end of the lock shell for the lock tongue to enter and exit, and a mounting hole and a movable hole for the lock tongue to extend and retract are opened on the mounting plate, the lock shell includes an upper shell, a lower shell and a positioning sleeve, the upper shell or the lower shell is integrally formed with the mounting plate, the lock shell includes a rectangular frame and a positioning plate, a threaded hole is opened on the positioning plate, the upper shell and the lower shell are matched and inserted into the rectangular hole in the rectangular frame, the positioning sleeve is provided with a waist-shaped hole corresponding to the position of the upper shell and / or the lower shell, the upper shell and / or the lower shell are provided with a threaded hole corresponding to the position of the waist-shaped hole, and a fastener threadedly connected to the threaded hole is arranged in the waist-shaped hole.

[0004] The problem existing in the above patent is that the lock frame needs to be moved to a suitable position when it is installed on the lock shell. Positioning blocks are provided on the lock frame and the lock shell, and an installation groove for placing the spring is formed between the two. Due to errors in spring processing, if the spring is pressed down directly, the end of the spring will be deformed and damaged. Therefore, during installation, the two sides of the spring are usually squeezed to place it intact in the installation groove. However, this structure is not convenient for installation. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a magnetic lock core.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic lock core, comprising a lock shell, a lock frame slidably arranged in the lock shell, a lock tongue linked with the lock frame, and a rotatable dial wheel, the lock tongue can extend or retract into the lock shell, and the dial wheel is rotated to make the lock frame drive the lock tongue to lock back into the lock shell, the lock tongue comprises a lock head fixed or integrally arranged on the lock frame, the lock head is provided with a receiving groove, the receiving groove is provided with a magnetic member and a positioning plate, the positioning plate is arranged in the receiving groove, the positioning groove is provided on the positioning plate and a first positioning column is provided in the positioning groove, the lock shell is provided with a second positioning column, a tension spring is provided between the first positioning column and the second positioning column, the two ends of the tension spring are respectively sleeved on the first positioning column and the second positioning column, and a lock sleeve for closing the notch of the receiving groove is provided outside the lock head, and the lock sleeve limits the magnetic member and the positioning plate in the receiving groove.

[0007] As a preferred technical solution of the utility model, the magnetic component is arranged at the outer end of the lock head, the positioning plate is arranged close to the inner side of the magnetic component, and the lock sleeve enters from the outer end of the lock head and is sleeved on the lock head.

[0008] As a preferred technical solution of the utility model, the positioning groove is a U-shaped groove and is located in the middle of the positioning plate. The first positioning column and the second positioning column are respectively arranged on the positioning plate and the lock shell along the sliding direction of the lock frame and the two are on the same horizontal straight line.

[0009] As a preferred technical solution of the utility model, a positioning structure is arranged between the positioning plate and the accommodating groove, and the positioning structure includes a plug-in column and a plug-in hole; the plug-in column is arranged on the positioning plate and the plug-in hole is arranged in the accommodating groove, or the plug-in hole is arranged on the positioning plate and the plug-in column is arranged in the accommodating groove.

[0010] As a preferred technical solution of the utility model, openings are provided on both sides of the lock sleeve, and clamping blocks that engage with the openings are provided on both sides of the lock frame. Guide slopes are provided on the clamping blocks, and the guide slopes gradually tilt upward from one end of the lock sleeve to a direction away from the other end of the lock sleeve.

[0011] As a preferred technical solution of the utility model, a long groove is provided on at least one side of the lock frame, a paddle matching the long groove is provided on the dial wheel, an oblique stopper matching the paddle is provided at the rear end of the long groove, and when the lock tongue is fully extended out of the lock shell, the oblique stopper at the rear end of the long groove abuts against the paddle.

[0012] As a preferred technical solution of the present utility model, spring sheets are arranged on both sides of the lock shell, and the lock shell includes an upper shell and a lower shell assembled with each other, and after the upper shell and the lower shell are assembled, slots for fixing the spring sheets are formed on both sides, and the spring sheets include a connecting portion limited in the slot and an elastic plate located on the outside of the lock shell and inclined outward, the connecting portion is a concave structure, and a blocking piece for preventing the connecting portion from detaching is arranged in the slot, and two blocking pieces are provided and are respectively formed on the upper shell and the lower shell.

[0013] To sum up, the beneficial effects of the utility model are as follows: the existing spring structure is replaced by a tension spring, and the tension spring has the same function as the spring, so that the lock tongue can be quickly locked back into the lock shell when resetting; a positioning plate is arranged in the accommodating groove, one end of the tension spring is inserted into the positioning groove of the positioning plate, and a lock sleeve is used to limit the magnetic part and the positioning plate to the accommodating groove; during installation, the other end of the tension spring is aligned with the second positioning column of the lock shell, so that the installation and positioning of the lock frame can be quickly completed, and the assembly is more convenient.

[0014] At the moment of closing the door, the magnetic part in the lock tongue engages with the magnetic part in the buckle box of the door frame, so that the lock tongue is attracted and pulled out, and enters the buckle box of the door frame, and the door is closed. At this time, the lock frame slides forward with the lock tongue, and the inclined block at the rear end of the long groove contacts the paddle of the dial wheel, and the tension spring is in a stretched state; when unlocking, the handle drives the dial wheel to rotate, and the rotation of the paddle can drive the lock frame to slide backward, so that the lock tongue slides backward into the lock shell, and quickly resets under the elastic restoring force of the tension spring, thereby achieving unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lock frame and the lock tongue in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the locking frame in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the positioning plate in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the shrapnel in the utility model.

[0021] Figure numerals: 1, lock shell; 2, lock frame; 3, lock tongue; 4, dial wheel; 5, lock head; 6, receiving groove; 7, magnetic member; 8, positioning plate; 9, positioning groove; 10, first positioning column; 11, second positioning column; 12, tension spring; 13, lock sleeve; 14, plug-in column; 15, plug hole; 16, opening; 17, block; 18, guide slope; 19, long groove; 20, pick; 21, oblique block; 22, spring; 23, upper shell; 24, lower shell; 25, slot; 26, connecting part; 27, elastic plate; 28, baffle. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 A magnetic lock core shown in the figure comprises a lock shell 1, a lock frame 2 slidably arranged in the lock shell 1, a lock tongue 3 linked with the lock frame 2 and a rotatable dial wheel 4, the lock tongue 3 can extend or retract into the lock shell 1, and the dial wheel 4 is rotated to make the lock frame 2 drive the lock tongue 3 to lock back into the lock shell 1, the lock tongue 3 comprises a lock head 5 fixed or integrally arranged on the lock frame 2, the lock head 5 is provided with a receiving groove 6, a magnetic member 7 and a positioning plate 8 are arranged in the receiving groove 6, the positioning plate 8 is arranged in the receiving groove 6, a positioning groove 9 is provided on the positioning plate 8, and a first positioning column 10 is arranged in the positioning groove 9, a second positioning column 11 is arranged in the lock shell 1, a tension spring 12 is arranged between the first positioning column 10 and the second positioning column 11, and the two ends of the tension spring 12 are respectively sleeved on the first positioning column 10 and the second positioning column 11, and a lock sleeve 13 for closing the notch of the receiving groove 6 is arranged outside the lock head 5, and the lock sleeve 13 limits the magnetic member 7 and the positioning plate 8 to be located in the receiving groove 6.

[0025] The existing spring structure is replaced by a tension spring 12, which has the same function as the spring, so that the lock tongue 3 can be quickly locked back into the lock housing 1 when resetting. By arranging a positioning plate 8 in the accommodating groove 6, one end of the tension spring 12 is inserted into the positioning groove 9 of the positioning plate 8, and a lock sleeve 13 is used to limit the magnetic member 7 and the positioning plate 8 to the accommodating groove 6. During installation, the other end of the tension spring 12 is aligned with the second positioning column 11 of the lock housing 1, and the installation and positioning of the lock frame 2 are quickly completed, making assembly more convenient.

[0026] The magnetic member 7 is disposed at the outer end of the lock head 5 , the positioning plate 8 is disposed close to the inner side of the magnetic member 7 , and the lock sleeve 13 enters from the outer end of the lock head 5 and is sleeved on the lock head 5 .

[0027] The positioning groove 9 is a U-shaped groove and is located in the middle of the positioning plate 8. The first positioning column 10 and the second positioning column 11 are respectively arranged on the positioning plate 8 and the lock housing 1 along the sliding direction of the lock frame 2 and are on the same horizontal line.

[0028] A positioning structure is provided between the positioning plate 8 and the receiving groove 6, and the positioning structure includes a plug-in column 14 and a socket 15; the plug-in column 14 is provided on the positioning plate 8 and the socket 15 is provided in the receiving groove 6, or the socket 15 is provided on the positioning plate 8 and the plug-in column 14 is provided in the receiving groove 6, and the socket 15 is plugged into and matched with the plug-in column 14.

[0029] Openings 16 are provided on both sides of the lock sleeve 13, and blocks 17 that are engaged with the openings 16 are provided on both sides of the lock frame 2. A guiding slope 18 is provided on the block 17. The guiding slope 18 gradually inclines upward from one end of the lock sleeve 13 to a direction away from one end of the lock sleeve 13. When the lock sleeve 13 is inserted from one end of the lock head 5, it is guided by the guiding slope 18, and the installation is smoother and easier.

[0030] A long groove 19 is provided on at least one side of the lock frame 2, and a paddle 20 cooperating with the long groove 19 is provided on the dial wheel 4. An oblique stopper 21 cooperating with the paddle 20 is provided at the rear end of the long groove 19. When the lock tongue 3 is fully extended out of the lock shell 1, the oblique stopper 21 at the rear end of the long groove 19 abuts against the paddle 20. In this embodiment, there are preferably two long grooves 19 symmetrically arranged on both sides of the lock frame 2.

[0031] Spring pieces 22 are arranged on both sides of the lock shell 1. The lock shell 1 includes an upper shell 23 and a lower shell 24 assembled with each other. After the upper shell 23 and the lower shell 24 are assembled, slots 25 for fixing the spring pieces 22 are formed on both sides. The spring piece 22 includes a connecting portion 26 limited in the slot 25 and an elastic plate 27 located on the outside of the lock shell 1 and inclined outward. The connecting portion 26 is a concave structure. A blocking piece 28 for blocking the connecting portion 26 from detaching is arranged in the slot 25. Two blocking pieces 28 are provided and are respectively formed on the upper shell 23 and the lower shell 24. Installing the spring piece 22 structure can prevent the lock shell 1 from detaching from the door frame, and the installation is more reliable.

[0032] Working principle: at the moment of closing the door, the magnetic part 7 in the lock tongue 3 is attracted to the magnetic part 7 in the buckle box of the door frame, so that the lock tongue 3 is attracted and pulled out, and enters the buckle box of the door frame, and the door is closed. At this time, the lock frame 2 slides forward with the lock tongue 3, and the inclined block 21 at the rear end of the long groove 19 contacts the paddle 20 of the dial wheel 4, and the tension spring 12 is in a stretched state; when unlocking, the handle drives the dial wheel 4 to rotate, and the rotation of the paddle 20 can drive the lock frame 2 to slide backward, so that the lock tongue 3 slides backward into the lock shell 1, and quickly resets under the elastic restoring force of the tension spring 12, thereby achieving unlocking.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A magnetic lock core, comprising a lock housing (1), a lock frame (2) slidably arranged in the lock housing (1), a lock tongue (3) linked to the lock frame (2), and a rotatable dial wheel (4), wherein the lock tongue (3) can be extended or retracted into the lock housing (1), and the dial wheel (4) is rotated so that the lock frame (2) drives the lock tongue (3) to lock back into the lock housing (1), characterized in that: The lock tongue (3) comprises a lock head (5) fixed or integrally arranged on a lock frame (2); a receiving groove (6) is arranged on the lock head (5); a magnetic member (7) and a positioning plate (8) are arranged in the receiving groove (6); a positioning groove (9) is arranged on the positioning plate (8); a first positioning column (10) is arranged in the positioning groove (9); a second positioning column (11) is arranged in the lock housing (1); a tension spring (12) is arranged between the first positioning column (10) and the second positioning column (11); two ends of the tension spring (12) are respectively sleeved on the first positioning column (10) and the second positioning column (11); a lock sleeve (13) for closing the notch of the receiving groove (6) is arranged outside the lock head (5); the lock sleeve (13) limits the magnetic member (7) and the positioning plate (8) in the receiving groove (6).

2. The magnetic lock core according to claim 1, characterized in that: The magnetic member (7) is arranged at the outer end of the lock head (5), the positioning plate (8) is arranged close to the inner side of the magnetic member (7), and the lock sleeve (13) enters from the outer end of the lock head (5) and is sleeved on the lock head (5).

3. The magnetic lock core according to claim 1 or 2, characterized in that: The positioning groove (9) is a U-shaped groove and is located in the middle of the positioning plate (8). The first positioning column (10) and the second positioning column (11) are respectively arranged on the positioning plate (8) and the lock housing (1) along the sliding direction of the lock frame (2) and the two are located on the same horizontal straight line.

4. The magnetic lock core according to claim 1 or 2, characterized in that: A positioning structure is provided between the positioning plate (8) and the receiving groove (6), and the positioning structure comprises a plug-in column (14) and a plug-in hole (15); the positioning plate (8) is provided with a plug-in column (14) and the receiving groove (6) is provided with a plug-in hole (15), or the positioning plate (8) is provided with a plug-in hole (15) and the receiving groove (6) is provided with a plug-in column (14).

5. The magnetic lock core according to claim 1 or 2, characterized in that: Openings (16) are provided on both sides of the lock sleeve (13), and clamping blocks (17) are provided on both sides of the lock frame (2) to be engaged with the openings (16). A guiding inclined surface (18) is provided on the clamping block (17), and the guiding inclined surface (18) gradually inclines upward from one end of the lock sleeve (13) to a direction away from one end of the lock sleeve (13).

6. The magnetic lock core according to claim 1, characterized in that: At least one side of the lock frame (2) is provided with a long slot (19); the thumbwheel (4) is provided with a paddle (20) matched with the long slot (19); a rear end of the long slot (19) is provided with an oblique stopper (21) matched with the paddle (20); when the lock tongue (3) is fully extended out of the lock housing (1), the oblique stopper (21) at the rear end of the long slot (19) abuts against the paddle (20).

7. The magnetic lock core according to claim 1, characterized in that: The lock shell (1) is provided with spring pieces (22) on both sides. The lock shell (1) comprises an upper shell (23) and a lower shell (24) which are assembled with each other. After the upper shell (23) and the lower shell (24) are assembled, a slot (25) for fixing the spring piece (22) is formed on both sides. The spring piece (22) comprises a connecting portion (26) limited in the slot (25) and an elastic plate (27) which is located outside the lock shell (1) and tilted outward. The connecting portion (26) is a concave structure. A blocking piece (28) is provided in the slot (25) to prevent the connecting portion (26) from being separated. Two blocking pieces (28) are provided and are respectively formed on the upper shell (23) and the lower shell (24).

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