Magnetic lock catch box

Abstract

The invention discloses a magnetic lock catch box, which comprises a lock catch box and a magnet arranged in the lock catch box, and is characterized in that a power-assisted elastic piece which can be pressed against a spring bolt is arranged in the lock catch box. The structure does not influence the attraction of the spring bolt and the magnet during locking. During unlocking, the magnetic force of part of the magnet to the spring bolt is counteracted through the thrust of the boosting elastic piece to the spring bolt, so that the pulling force required by the spring bolt during unlocking is reduced, and the handle does not need to be rotated vigorously during manual unlocking; and during automatic unlocking, the requirement on the power of the motor is also reduced, so that the cost is also reduced.

Description

Technical Field

[0001] The invention relates to a lock, in particular to a magnetic lock box. Background Art

[0002] There are many types of locks, and their functionality is becoming stronger and stronger. Magnetic locks are one of them. Currently, magnetic locks on the market usually install magnets in the lock box. After the lock tongue is inserted into the lock box, the magnetic attraction between the magnet and the lock tongue is used to achieve the purpose of locking (such as patent: CN202321601096, patent name: lock box and magnetic lock including the lock box).

[0003] However, due to the strong magnetic force, when opening the door, if it is a manual door lock, the user needs to manually turn the door handle vigorously to allow the lock tongue to come out of the lock box, resulting in a poor user experience; if it is an electronic fully automatic door lock, a high-power motor is required to drive the lock tongue to come out of the lock box, resulting in high motor power consumption and high cost.

[0004] Therefore, the applicant has designed a magnetic lock box to solve the above problems. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a magnetic lock box.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A magnetic lock box comprises a lock box and a magnet installed in the lock box, and is characterized in that a boosting elastic member capable of pressing against a lock tongue is arranged in the lock box.

[0008] The assisting elastic member is a compression spring.

[0009] It also includes the power-assisting decorative plate, which is connected to the lock box through a guiding and limiting structure, and one end of the compression spring is against the power-assisting decorative plate; and the other end of the compression spring is against the lock box, and the power-assisting decorative plate can be moved in the lock box by the push of the compression spring, and the lock tongue can be pressed against the power-assisting decorative plate.

[0010] The guide and limit structure comprises a limit slide groove arranged on the inner side wall of the lock box and a guide and limit hook arranged on the power-assisting decorative plate, and the hook portion of the guide and limit hook is located in the limit slide groove.

[0011] The lock box includes a buckle box panel, an inner box body, and a buckle box fixing frame. The inner box body and the buckle box panel are both connected and fixed to the buckle box fixing frame. The magnet is located between the inner box body and the buckle box fixing frame. A panel hole is provided on the buckle box panel.

[0012] The buckle box fixing frame includes a U-shaped main frame body and connecting foot plates arranged at two ends of the main frame body, the buckle box panel is fixed to the connecting foot plates, and the inner box body is located in the main frame body.

[0013] The bottom surface of the inner box body is provided with a receiving hole, the magnet is located in the receiving hole, and the receiving hole is closed by a buckle box fixing frame.

[0014] A plurality of positioning plates are arranged on the side walls of the receiving hole, and the magnet is located between the positioning plates.

[0015] The magnet is square.

[0016] The outer surface of the inner box body is relatively provided with positioning convex edges, and the main frame body is clamped between the positioning convex edges.

[0017] The beneficial effects of the present invention are as follows: the present invention comprises a lock box and a magnet installed in the lock box, wherein the lock box is provided with an assisting elastic member capable of pressing against the lock tongue, and the above structure does not affect the attraction between the lock tongue and the magnet when locking. When unlocking, the thrust of the assisting elastic member on the lock tongue offsets part of the magnetic force of the magnet on the lock tongue, thereby reducing the pulling force required for the lock tongue when unlocking, so that there is no need to turn the handle vigorously when manually unlocking; when unlocking automatically, the power requirement for the motor is also reduced, thereby reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is an assembly structure view of the present invention;

[0020] Figure 2 is an exploded structural view of the present invention;

[0021] Figure 3 It is an exploded structural view of the present invention from another direction. DETAILED DESCRIPTION

[0022] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0023] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0024] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0025] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0026] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0027] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0028] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0029] Reference Figures 1 to 3The present invention discloses a magnetic lock box, comprising a lock box 1 and a magnet 2 installed in the lock box 1. The lock box 1 is provided with an auxiliary elastic member 3 that can press against the lock tongue. When unlocking, the lock tongue is pushed back by the elastic force of the auxiliary elastic member 3, thereby reducing the pulling force required for the lock tongue when unlocking. Of course, the elastic force of the auxiliary elastic member 3 is definitely smaller than the magnetic attraction of the magnet 2 on the lock tongue, which can ensure that the magnet 2 and the lock tongue are attracted to each other and locked. The applicant has also verified it on the electronic automatic door lock. In the old structure without adding the auxiliary elastic member 3, when the voltage of the motor is 5V, the motor cannot drive the lock tongue to retract. However, after adding the auxiliary elastic member 3, when the voltage of the motor is as low as 3.6V, even the electronic automatic door lock sends a low-power alarm signal, but the motor can drive the lock tongue to retract. It can be seen from the above that the auxiliary elastic member 3 has a huge helping effect on the electronic automatic door lock.

[0030] Preferably, the assisting elastic member 3 is a compression spring. The above is only a preference and does not constitute a limitation to the present application. Of course, we can also use a torsion spring or an elastic metal sheet to achieve the purpose of using elastic force to push the lock tongue to retract.

[0031] As shown in the figure, it also includes the power-assisting decorative plate 4, which is connected to the lock box 1 through a guiding and limiting structure, and one end of the compression spring is against the power-assisting decorative plate 4; and the other end of the compression spring is against the lock box 1, and the power-assisting decorative plate 4 can be moved in the lock box 1 by the push of the compression spring, and the lock tongue can be pressed against the power-assisting decorative plate 4, and the power-assisting decorative plate 4 is slightly smaller than the box opening of the lock box 1, and can play a role in closing the box opening, so that the compression spring cannot be seen from the outside, and the overall display is more beautiful, and the compression spring is a spiral structure with circles, and the contact surface with the lock tongue is small and easy to deflect and slip, so it contacts with the lock tongue through the power-assisting decorative plate 4, the contact surface is large and stable, and the precision requirement for the lock tongue position is also low. As a further structure, the guiding and limiting structure includes a limiting slide groove 5 relatively arranged on the inner wall of the lock box 1 and a guiding and limiting hook 6 relatively arranged on the power-assisting decorative plate 4. The hook portion 7 of the guiding and limiting hook 6 is located in the limiting slide groove 5. When the power-assisting decorative plate 4 is located at the box mouth, the hook portion 7 can be against the end wall of the limiting slide groove 5, thereby limiting the power-assisting decorative plate 4 from being pushed out of the box mouth by the compression spring. The above structure is simple, and the power-assisting decorative plate 4 and the guiding and limiting hook 6 can be integrally formed by punching.

[0032] As shown in the figure, as a specific structure, the lock box 1 includes a lock box panel 8, an inner box body 9, and a lock box fixing frame 10. Of course, the limiting slide groove 5 is specifically arranged on the side wall of the inner box body 9, and the compression spring is also located in the inner box body 9 and is against the bottom surface of the inner box body 9. The lock box panel 8 is connected and fixed to the lock box fixing frame 10, and the magnet 2 is located between the inner box body 9 and the lock box fixing frame 10. The lock box panel 8 is provided with a panel hole 11, and the panel hole 11 and the box mouth are overlapped. The mouth of the inner box body 9 is connected with the panel hole 11. The above structure facilitates manufacturing and assembly. When the lock box panel 8 and the lock box fixing frame 10 are connected and fixed, the inner box body 9 can be located between the two, which simplifies assembly. As a further structure, the buckle box fixing frame 10 includes a U-shaped main frame 12 and connecting foot plates 13 relatively arranged at both ends of the main frame 12, the buckle box panel 8 is fixed to the connecting foot plates 13, the inner box body 9 is located in the main frame 12, the U-shaped main frame 12 is concave into a mounting groove, and the inner box body 9 is clamped in the mounting groove. As a further structure, the outer surface of the inner box body 9 is relatively provided with positioning convex edges 14, and the main frame 12 is clamped between the positioning convex edges 14, so that the main frame 12 and the inner box body 9 form a mutually embedded structure, and then the buckle box panel 8 and the buckle box fixing frame 10 are locked by screws, so that the buckle box panel 8, the inner box body 9, and the buckle box fixing frame 10 can be fixed as a whole. Of course, the locking buckle box panel 8 is provided with a connecting hole for fixing the lock buckle box 1 to the door frame.

[0033] As shown in the figure, the bottom surface of the inner box body 9 is provided with a receiving hole 15, the magnet 2 is located in the receiving hole 15, and the receiving hole 15 is closed by the buckle box fixing frame 10. The above structure not only hides the magnet 2 in the lock box 1, but also uses the structure of fixing the buckle box panel 8, the inner box body 9, and the buckle box fixing frame 10 to achieve the fixation of the magnet 2, reducing the assembly process and simplifying the structure. As a further structure, a plurality of positioning plates 16 are relatively provided on the side walls of the receiving hole 15, the magnet 2 is located between the positioning plates 16, the positioning plates 16 limit the position of the magnet 2, and the positioning plates 16 are only the narrow end faces that contact and position the magnet 2, so the contact surface is small. If the magnet 2 is to be buckled out of the receiving hole 15, not only is there space for operation, but also the friction is small and it is easy.

[0034] As shown in the figure, the magnet 2 is square, so the end face of the lock tongue is also square, so the shapes of the two correspond, and the square is also a simple shape and easy to manufacture and process.

[0035] A magnetic lock box provided by an embodiment of the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A magnetic lock box, comprising a lock box and a magnet installed in the lock box, characterized in that: The lock buckle box is provided with an assisting elastic member capable of pressing against the lock tongue.

2. A magnetic lock box according to claim 1, characterized in that: The assisting elastic member is a compression spring.

3. A magnetic lock box according to claim 2, characterized in that: It also includes the power-assisting decorative plate, which is connected to the lock box through a guiding and limiting structure, and one end of the compression spring is against the power-assisting decorative plate; and the other end of the compression spring is against the lock box, and the power-assisting decorative plate can be moved in the lock box by the push of the compression spring, and the lock tongue can be pressed against the power-assisting decorative plate.

4. A magnetic lock box according to claim 3, characterized in that: The guide and limit structure comprises a limit slide groove arranged on the inner side wall of the lock box and a guide and limit hook arranged on the power-assisting decorative plate, and the hook portion of the guide and limit hook is located in the limit slide groove.

5. The magnetic lock box according to claim 1, characterized in that: The lock box comprises a buckle box panel, an inner box body, and a buckle box fixing frame. The buckle box panel is connected and fixed to the buckle box fixing frame. The magnet is located between the inner box body and the buckle box fixing frame. A panel hole is provided on the buckle box panel.

6. A magnetic lock box according to claim 5, characterized in that: The buckle box fixing frame includes a U-shaped main frame body and connecting foot plates arranged at two ends of the main frame body, the buckle box panel is fixed to the connecting foot plates, and the inner box body is located in the main frame body.

7. The magnetic lock box according to claim 5, characterized in that: The bottom surface of the inner box body is provided with a receiving hole, the magnet is located in the receiving hole, and the receiving hole is closed by a buckle box fixing frame.

8. The magnetic lock box according to claim 7, characterized in that: A plurality of positioning plates are arranged on the side walls of the receiving hole, and the magnet is located between the positioning plates.

9. The magnetic lock box according to claim 1, characterized in that: The magnet is square.

10. The magnetic lock box according to claim 6, characterized in that: The outer surface of the inner box body is relatively provided with positioning convex edges, and the main frame body is clamped between the positioning convex edges.

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