Magnetic control lock

Abstract

The utility model discloses a magnetic control lock, which aims to solve the technical problems that the magnetic control lock in the prior art is time-consuming and labor-consuming in assembly, low in production efficiency and insufficient in flexibility of assembly angles, and comprises an outer shell, an inner shell, a locking piece and an elastic piece, a placing cavity is arranged on the inner shell, the locking piece comprises a left locking piece and a right locking piece, and the left locking piece and the right locking piece are arranged in the placing cavity. The left locking piece and the right locking piece are symmetrically arranged above the elastic piece, the shell is provided with a containing cavity opposite to the opening direction of the containing cavity, the inner wall of the containing cavity is provided with a left abutting column and a right abutting column, the left locking piece is provided with a left abutting groove, the right locking piece is provided with a right abutting groove, and the left abutting column and the right abutting column are arranged on the inner wall of the containing cavity. According to the whole assembling steps, the elastic piece is placed in the containing cavity, then the left locking piece and the right locking piece are placed on the elastic piece, finally, the outer shell is sleeved with the inner shell, assembling is easy, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical care safety protection, in particular to a magnetic control lock. Background Art

[0002] Some restraint bands used in hospitals are equipped with magnetic control lock devices. The magnetic control lock device mainly consists of a key part, a lock nail part, and a magnetic control lock part. The existing magnetic control lock parts (such as the patent publication number: CN205422251U) have the following problems:

[0003] 1. Since the magnetic control lock part is small, and the assembly parts such as springs and lock piece parts are even smaller, it is easy to move positions during assembly, resulting in a long time spent on aligning the positions of each part, being time-consuming and laborious, and having low production efficiency;

[0004] 2. During assembly, the spring needs to be placed and aligned first, and then the lock piece is placed on the spring (the spring and the lock piece are installed separately). This process must maintain a horizontal position. When the spring and the lock piece are tilted, it is easy to cause assembly failure, resulting in low assembly efficiency. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a magnetic control lock, aiming to solve the technical problems of time-consuming and laborious assembly, low production efficiency, and insufficient flexibility in assembly angle of the magnetic control lock under the existing technology.

[0007] (2) Technical Solutions

[0008] A magnetic control lock includes a housing, an inner housing, a locking piece and an elastic member. A placement cavity is provided on the inner housing. The locking piece includes a left locking piece and a right locking piece. The left locking piece and the right locking piece are symmetrically arranged above the elastic member. A receiving cavity opposite to the opening direction of the placement cavity is provided on the housing. A left abutting post and a right abutting post are provided on the inner wall of the receiving cavity. A left abutting groove is provided on the left locking piece, and a right abutting groove is provided on the right locking piece. The left abutting post corresponds to the left abutting groove in position and abuts therein, and the right abutting post corresponds to the right abutting groove in position and abuts therein. At this time, the left locking piece is limited by the elastic member below and the left abutting post above in the placement cavity, and the right locking piece is limited by the elastic member below and the right abutting post above in the placement cavity. When the right locking piece and the left locking piece rotate under an external force, the left locking piece presses down the elastic member with the left abutting post as the rotation point to achieve clockwise or counterclockwise rotation, and the right locking piece presses down the elastic member with the right abutting post as the rotation point to achieve clockwise or counterclockwise rotation; thus, the effects of unlocking and locking are realized. The whole assembly step is to first place the elastic member in the placement cavity, then place the left locking piece and the right locking piece on the elastic member, and finally put the housing on the inner housing, which overall realizes simple assembly and improves production efficiency.

[0009] (3) Beneficial effects

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, the left locking piece is limited by the elastic member below and the left abutting post above in the placement cavity, and the right locking piece is limited by the elastic member below and the right abutting post above in the placement cavity. When the right locking piece and the left locking piece rotate under an external force, the left locking piece presses down the elastic member with the left abutting post as the rotation point to achieve clockwise or counterclockwise rotation, and the right locking piece presses down the elastic member with the right abutting post as the rotation point to achieve clockwise or counterclockwise rotation; thus, the effects of unlocking and locking are realized. The whole assembly step is to first place the elastic member in the placement cavity, then place the left locking piece and the right locking piece on the elastic member, and finally put the housing on the inner housing, which overall realizes simple assembly and improves production efficiency. Description of the drawings

[0012] Figure 1 : Three-dimensional structure diagram of the magnetic control lock, the lock tongue and the magnetic iron of the present utility model.

[0013] Figure 2 : Three-dimensional structure diagram of the magnetic control lock of the present utility model.

[0014] Figure 3 : Exploded view of the magnetic control lock in which the left abutting post, the right abutting post, the left abutting groove and the right abutting groove of the present utility model are in the shape of a cone.

[0015] Figure 4:Exploded view of the magnetic control lock where the left abutting post, right abutting post, left abutting groove and right abutting groove of the present utility model are in the shape of a long triangular prism.

[0016] Figure 5 :Exploded view of the magnetic control lock of the present utility model showing the limiting area with the elastic member placed in the placement cavity.

[0017] Figure 6 :Cross-sectional view of the magnetic control lock of the present utility model locking the lock tongue.

[0018] Figure 7 :Cross-sectional view of the magnetic control lock of the present utility model unlocking the lock tongue.

[0019] Figure 8 :Cross-sectional view of the reset actions of the left lock piece and right lock piece after unlocking of the present utility model.

[0020] The markings of each component in the drawings are as follows: 1 - outer shell; 11 - accommodation cavity; 12 - left abutting post; 13 - right abutting post; 14 - guiding abutting protrusion; 2 - inner shell; 21 - placement cavity; 22 - shell lock hole; 23 - lock post; 24 - clamping platform; 25 - guiding abutting groove; 3 - left lock piece; 31 - left abutting groove; 32 - left arc-shaped notch; 4 - right lock piece; 41 - right abutting groove; 42 - right arc-shaped notch; 5 - elastic member; 51 - limiting hole; 52 - elastic lock hole; 6 - limiting post; 7 - limiting area; 8 - lock tongue; 9 - magnetic attracting iron. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model;

[0022] Please refer to Figure 1-8 ;

[0023] An explanation is given to the "long triangular prism" below. The bottom and top surfaces of a cuboid are both squares or rectangles of the same size, with four right angles, while the bottom and top surfaces of the "long triangular prism" are both triangles of the same size, with three acute angles or composed of two acute angles and one right angle.

[0024] Such as Figure 1-3The following shows a magnetic control lock of the present utility model, which includes a housing 1, an inner housing 2, a locking piece, and an elastic member 5. A placement cavity 21 is provided on the inner housing 2. The size of the elastic member 5 is adapted to the size of the placement cavity 21 of the inner housing 2. The elastic member 5 is placed in the placement cavity 21 and detachably fixedly connected to the inner housing 2. The locking piece includes a left locking piece 3 and a right locking piece 4. The left locking piece 3 and the right locking piece 4 are placed above the elastic member 5 and are symmetrically arranged left and right in the inner housing 2. A receiving cavity 11 with an opening direction opposite to that of the placement cavity 21 is provided on the housing 1. The size of the receiving cavity 11 is adapted to the size of the inner housing 2, so that the inner housing 2 can be placed in the receiving cavity 11 and detachably fixedly connected to the housing 1. A left abutting post 12 and a right abutting post 13 are provided on the inner wall of the receiving cavity 11. A left abutting groove 31 is provided on the left locking piece 3, and a right abutting groove 41 is provided on the right locking piece 4. During assembly, the elastic member 5 is placed in the placement cavity 21 of the inner housing 2, then the left locking piece 3 and the right locking piece 4 are placed above the elastic member 5, and then the inner housing 2 with the elastic member 5, the left locking piece 3, and the right locking piece 4 is placed in the receiving cavity 11 of the housing 1, so that the left abutting post 12 corresponds to the left abutting groove 31 and abuts therein, and the right abutting post 13 corresponds to the right abutting groove 41 and abuts therein. At this time, the left locking piece 3 is limited by the elastic member 5 below and the left abutting post 12 above in the placement cavity 21, and the right locking piece 4 is limited by the elastic member 5 below and the right abutting post 13 above in the placement cavity 21. When the right locking piece 4 and the left locking piece 3 rotate under an external force, the left locking piece 3 presses down the elastic member 5 with the left abutting post 12 as the rotation point to achieve clockwise or counterclockwise rotation, and the right locking piece 4 presses down the elastic member 5 with the right abutting post 13 as the rotation point to achieve clockwise or counterclockwise rotation. The whole assembly step is to first place the elastic member 5 in the placement cavity 21, then place the left locking piece 3 and the right locking piece 4 on the elastic member 5, and finally put the housing 1 on the inner housing 2. The overall assembly is simple, and thus the effects of unlocking and locking are achieved, and the overall assembly is simple, which plays the role of improving production efficiency.

[0025] As Figure 3 and Figure 4As shown, the shapes of the left abutting column 12, the right abutting column 13, the left abutting groove 31 and the right abutting groove 41 are diverse. They can be conical bodies or long triangular prisms, etc. When the shapes of the left abutting column 12, the right abutting column 13, the left abutting groove 31 and the right abutting groove 41 are conical bodies, the left abutting groove 31 and the right abutting groove 41 rotate with the left abutting column 12 and the right abutting column 13 as the rotation points. When the shapes of the left abutting column 12, the right abutting column 13, the left abutting groove 31 and the right abutting groove 41 are long triangular prisms, two corners of the long triangular prism contact the inner wall of the outer shell 1, and the remaining sharp corner is away from the inner wall of the outer shell 1. The left abutting groove 31 and the right abutting groove 41 rotate with the sharp corner surfaces of the left abutting column 12 and the right abutting column 13 as the rotation axes, which can increase the force-bearing rotation area and make the rotation force points of the left lock piece 3 and the right lock piece 4 more balanced. It is set according to actual needs and is not limited here.

[0026] As Figure 5 As shown, there are two limiting columns 6 provided in the placement cavity 21. There are two limiting holes 51 provided on the elastic member 5. The positions of the limiting holes 51 correspond to the positions of the limiting columns 6. When the elastic member 5 is placed in the placement cavity 21, the limiting holes 51 are sleeved on the outer periphery of the limiting columns 6. The limiting columns 6 play a limiting role on the elastic member 5 in the placement cavity 21. During use, there will be no displacement of the elastic member 5 relative to the placement cavity 21. A limiting area 7 for placing the left lock piece 3 and the right lock piece 4 is formed between the limiting columns 6 and the elastic member 5 to ensure that the positions of the left lock piece 3 and the right lock piece 4 on the elastic member 5 do not move. Moreover, the limiting holes 51 of the elastic member 5 can be directly sleeved on the outer periphery of the limiting columns 6 at various angles for assembly, without worrying about the situation where the position of the elastic member 5 is offset and cannot be assembled due to the angle inclination problem, enhancing the assembly flexibility of the magnetic control lock.

[0027] Specifically, a clamping platform 24 extending around is provided at the lower end of the outer periphery of the inner shell 2. The width of the clamping platform 24 is adapted to the width between the inner wall and the outer wall of the outer shell 1. When the inner shell 2 is placed in the accommodation cavity 11 of the outer shell 1, the upper and lower end faces of the outer shell 1 in the vertical direction are placed on the upper end face of the clamping platform 24, making the overall appearance of the combination of the inner shell 2 and the outer shell 1 more beautiful, symmetrical and not prickly.

[0028] Specifically, a guiding and abutting groove 25 is provided on the outer wall of the inner shell 2 along the longitudinal direction, and a guiding and abutting protrusion 14 is provided on the inner wall of the outer shell 1 along the longitudinal direction. The guiding and abutting protrusion 14 is adapted to the guiding and abutting groove 25. When the inner shell 2 is placed in the accommodating cavity 11 of the outer shell 1, the guiding and abutting protrusion 14 aligns with the guiding and abutting groove 25 and snaps into it, so that the inner shell 2 and the outer shell 1 restrict each other and cannot rotate relative to each other, avoiding the left abutting post 12 and the right abutting post 13 located in the outer shell 1 from moving relative to the left abutting groove 31 and the right abutting groove 41, and ensuring the locking or unlocking function of the lock tongue 8.

[0029] Specifically, when the left lock piece 3 and the right lock piece 4 are respectively placed in the limiting area 7, the guiding and abutting groove 25, the left abutting groove 31, the right abutting groove 41, the guiding and abutting protrusion 14, the left abutting post 12 and the right abutting post 13 are arranged on the same axis. When the inner shell 2 is placed in the accommodating cavity 11, at this time, the guiding and abutting protrusion 14 aligning with the guiding and abutting groove 25 can play the role of positioning the left abutting groove 31 and the left abutting post 12, and positioning the right abutting groove 41 and the right abutting post 13. At the same time, it can also prevent the inner shell 2 and the outer shell 1 from rotating relative to each other, making the positioning of the outer shell 1, the left lock piece 3 and the right lock piece 4 easier, with a simple structure, effectively improving the assembly efficiency and accuracy.

[0030] As Figure 1-3 shown, a lock tongue 8 is provided on one side of the outer shell 1. A left arc-shaped notch 32 is provided on the left lock piece 3, and a right arc-shaped notch 42 is provided on the right lock piece 4. The combination of the left arc-shaped notch 32 and the right arc-shaped notch 42 can lock or unlock the lock tongue 8, realizing the locking and unlocking functions of the magnetic control lock.

[0031] Specifically, a shell lock hole 22 is provided at the lower end of the inner shell 2. A lock post 23 is provided in the placement cavity 21. The shell lock hole 22 penetrates through the lock post 23 and the inner shell 2, so that the placement cavity 21 communicates with the outside. An elastic lock hole 52 is provided on the elastic member 5. When the elastic member 5 is placed in the placement cavity 21, the lock post 23 passes through the elastic lock hole 52 to realize the avoidance of the elastic member 35 in the shell lock hole 22. The height of the lock post 23 is less than or approximately equal to the height of the elastic member 5. When the left lock piece 3 and the right lock piece 4 are placed on the upper surface of the elastic member 5, in the vertical direction, a part of the structure of the left lock piece 3 is located above the upper end of the lock post 23, and a part of the structure of the right lock piece 4 is located above the upper end of the lock post 23;

[0032] As Figure 6As shown in the figure, when the locking tongue 8 needs to be locked, when the left lock piece 3 rotates counterclockwise with the left abutting post 12 as the rotation point to the upper end of the lock post 23, it is stopped by the lock post 23 and cannot continue to rotate, so it cannot press the elastic member 5 counterclockwise. At the same time, when the right lock piece 4 rotates clockwise with the right abutting post 13 as the rotation point to the upper end of the lock post 23, it is stopped by the upper end of the lock post 23 and cannot continue to rotate, so it cannot press the elastic member 5 clockwise. At this time, the left arc-shaped notch 32 and the right arc-shaped notch 42 are combined to form a clamping position, realizing the locking of the locking tongue 8.

[0033] As Figure 7 shown in the figure, when the locking tongue 8 needs to be unlocked, a magnetic iron 9 is placed at the upper end of the outer shell 1. The left lock piece 3 moves upward under the upward adsorption force of the magnetic iron 9. Due to the existence of the left abutting post 12, the right end of the left lock piece 3 rotates counterclockwise with the left abutting post 12 as the rotation point to release the locking tongue 8. At the same time, the left end of the left lock piece 3 presses the elastic member 5 counterclockwise; the right lock piece 4 moves upward under the upward adsorption force of the magnetic iron 9. Due to the existence of the right abutting post 13, the left end of the right lock piece 4 rotates clockwise with the right abutting post 13 as the rotation point to release the locking tongue 8. At the same time, the left end of the right lock piece 4 presses the elastic member 5 clockwise. At this time, the distance between the left arc-shaped notch 32 and the right arc-shaped notch 42 is much larger than the outer circumference size of the locking tongue 8, and the locking tongue 8 can freely enter and exit the shell lock hole 22, realizing the unlocking of the locking tongue 8.

[0034] As Figure 8 shown in the figure, finally, the left lock piece 3 and the right lock piece 4 can be reset under the action of the force of the elastic member 5 to restore its deformation.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A magnetic lock, characterized in that: The invention comprises an outer shell (1), an inner shell (2), a locking plate and an elastic member (5); the inner shell (2) is provided with a placement cavity (21); the locking plate comprises a left locking plate (3) and a right locking plate (4); the left locking plate (3) and the right locking plate (4) are symmetrically arranged above the elastic member (5); the outer shell (1) is provided with a receiving cavity (11) with an opening direction opposite to that of the placement cavity (21); a left retaining column (12) and a right retaining column (13) are arranged on the inner wall of the receiving cavity (11); the left locking plate (3) is provided with a left retaining groove (31); and the right locking plate (4) is provided with a right retaining groove (41).

2. A magnetic lock according to claim 1, characterized in that: The left abutting column (12), the right abutting column (13), the left abutting groove (31) and the right abutting groove (41) are in the shape of cones.

3. A magnetic lock according to claim 1, characterized in that: The left abutting column (12), the right abutting column (13), the left abutting groove (31) and the right abutting groove (41) are in the shape of a long triangle.

4. A magnetically controlled lock according to claim 2 or 3, characterized in that: Two limiting columns (6) are provided in the placement cavity (21), and two limiting holes (51) are provided on the elastic member (5).

5. A magnetic lock according to claim 4, characterized in that: A limiting area (7) for placing the left locking plate (3) and the right locking plate (4) is formed between the limiting column (6) and the elastic member (5).

6. A magnetic lock according to claim 5, characterized in that: A locking tongue (8) is provided on one side of the housing (1), a left arc-shaped notch (32) is provided on the left locking plate (3), and a right arc-shaped notch (42) is provided on the right locking plate (4).

7. A magnetic lock according to claim 6, characterized in that: A shell locking hole (22) is provided at the lower end of the inner shell (2), a locking column (23) is provided in the placement cavity (21), the shell locking hole (22) penetrates the locking column (23) and the inner shell (2), so that the placement cavity (21) is connected to the outside, and the height of the locking column (23) is less than or nearly equal to the height of the elastic member (5).

8. A magnetic lock according to claim 7, characterized in that: A magnetic magnet (9) is placed at the upper end of the outer shell (1), and a clamping platform (24) extending in all directions is provided at the lower end of the outer periphery of the inner shell (2), wherein the width of the clamping platform (24) is adapted to the width between the inner wall and the outer wall of the outer shell (1).

9. A magnetic lock according to claim 8, characterized in that: A guide stop groove (25) along the longitudinal direction is provided on the outer wall of the inner shell (2), and a guide stop protrusion (14) along the longitudinal direction is provided on the inner wall of the outer shell (1).

10. A magnetic lock according to claim 9, characterized in that: The guide stop groove (25), the left stop groove (31), the right stop groove (41), the guide stop protrusion (14), the left stop column (12), and the right stop column (13) are located on the same axis.

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