Safety door lock

Abstract

The safety door lock comprises a fixing plate, an adjusting plate and an elastic assembly, the fixing plate is provided with a through hole extending in the axial direction of the fixing plate, a sealing plug is arranged at the bottom of the through hole, an opening is formed in the side portion of the through hole, at least one notch smaller than the opening is formed in the top of the opening, and the adjusting plate comprises an adjusting ring, a connecting part and a protection part. The adjusting ring is arranged in the through hole, one end of the connecting part is connected to the adjusting ring, the other end of the connecting part extends out of the through hole through the opening and is connected to the protection part, the elastic assembly comprises an elastic piece and a moving piece, and one end of the moving piece is inserted into the through hole along the end, away from the sealing plug, of the through hole; the elastic piece is arranged between the moving piece and the sealing plug and is in a compressed state, the moving piece is fixedly connected with the adjusting ring, by means of the safety door lock, mistaken touch can be prevented, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to door lock technical field, especially relate to a safety door lock. BACKGROUND

[0002] Some tenants in order to own personal safety and property safety, in addition to the lock of the door, will install additional safety lock. The common safety lock on the market is hinged design, by user manual dialing door piece to the door, the door is protected. However, the safety lock mainly relies on the weight of its own to lock, if the tenant is outside when the door accidentally touches the door piece, it can cause the safety lock to lock, cause the user to enter the room again the situation, bring the user bad use experience.

[0003] Therefore, there is an urgent need to provide a safety door lock that can prevent accidental touch. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a safety door lock, the safety door lock can prevent accidental touch, and a certain external force needs to be applied to lock.

[0005] The utility model solves the technical scheme that the utility model adopts:

[0006] A safety door lock, including fixed plate, adjusting plate and elastic component, the fixed plate is equipped with the through hole along its axial extension, the bottom of the through hole is provided with sealing plug, the side of the through hole is equipped with the opening, the top of the opening is equipped with at least one smaller than the opening gap, the adjusting plate includes adjusting ring, connecting portion and protection part, the adjusting ring is in the through hole, one end of the connecting portion is connected to the adjusting ring, the other end of the connecting portion extends to the outside of the through hole through the opening and is connected to the protection part, the elastic component includes elastic piece and moving piece, one end of the moving piece is inserted into the through hole away from the end of the sealing plug along the through hole, the other end of the moving piece is lapped on the outer edge of the through hole, the elastic piece is arranged between the moving piece and the sealing plug and is in the compressed state, the adjusting ring is fixedly connected to the outer circumference of the moving piece.

[0007] Further, the outer circumference of the moving piece is provided with a first thread, the inner circumference of the adjusting ring is provided with a second thread, the first thread and the second thread are matched, and the adjusting ring and the moving piece are fixedly connected through the threads.

[0008] Further, the sealing plug is provided as a cylindrical structure, one end of the sealing plug is provided as a closed structure, and the other end is provided with an opening; the elastic piece is arranged inside the sealing plug; the bottom of the moving piece is inserted into the inside of the sealing plug along the opening and compresses the elastic piece.

[0009] Further, the outer periphery of the sealing plug is provided with a third thread, the inner wall of the through hole is provided with a fourth thread, the third thread is matched with the fourth thread, and the sealing plug is fixedly connected with the through hole through thread cooperation.

[0010] Further, the side of the through hole is provided with two openings, and the top of each of the two openings is provided with a notch.

[0011] Further, the fixing plate is provided with a plurality of mounting holes.

[0012] Further, the fixing plate comprises a first fixing part and a second fixing part, the mounting hole is arranged on the second fixing part, the second fixing part is integrally formed with the first fixing part, and the through hole is arranged on the first fixing part.

[0013] Further, the top of the opening is provided with a first notch and a second notch, the first notch is arranged on the side of the first fixing part close to the second fixing part, and the second notch is arranged on the side of the first fixing part away from the second fixing part.

[0014] Further, the adjusting ring, the connecting part and the protection part are integrally formed.

[0015] Further, the protection part comprises a first protection part and a second protection part, the first protection part is connected to the connecting part and is perpendicular to the connecting part.

[0016] The utility model discloses the beneficial effect is:

[0017] The utility model provides a safety door lock, the safety door lock is through setting up elastic component and adjusting board, and the adjusting board is abutted on the fixed plate by elastic component under the condition of not locking, and the user can rotate locking only by exerting certain external force, can prevent mistaken touch, has promoted the use experience of user. ACCOUT OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of the safety door lock of the utility model under the locking state.

[0019] Figure 2 It is the schematic diagram of the safety door lock of the utility model under the unlocking state.

[0020] Figure 3 It is another angle schematic diagram of the safety door lock of the utility model under the unlocking state.

[0021] Figure 4 It is the cross section view along A-A in the figure. Figure 3 ​

[0022] Figure 5 is an exploded view of the safety door lock of the utility model;

[0023] Figure 6 is a schematic view of the fixed plate in the safety door lock of the utility model;

[0024] Figure 7 is a schematic view of the safety door lock and the door frame in the locked state;

[0025] Figure 8 is a schematic view of the safety door lock and the door frame in the unlocked state;

[0026] Mark explanation:

[0027] 1, fixed plate; 11, through hole; 12, sealing plug; 121, third thread; 122, opening; 13, fourth thread; 14, opening; 15, notch; 151, first notch; 152, second notch; 16, first fixed part; 17, second fixed part; 171, mounting hole;

[0028] 2, adjusting plate; 21, adjusting ring; 211, second thread; 22, connecting part; 23, protection part; 231, first protection part; 232, second protection part; 233, convex part;

[0029] 3, elastic assembly; 31, elastic piece; 32, moving piece; 321, first thread;

[0030] 4, door frame; 5, wall surface. DETAILED DESCRIPTION

[0031] The concept, specific structure and generated technical effects of the utility model will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and other embodiments obtained by the skilled in the art without creative labor based on the embodiments of the utility model all belong to the protection scope of the utility model. In addition, all the coupling / connection relations involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be composed by adding or reducing coupling auxiliary components according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined without mutual contradiction and conflict.

[0032] The utility model provides a kind of safety door lock, and safety door lock is arranged by setting elastic assembly and adjusting plate, adjusting plate is abutted on fixed plate by elastic assembly in the case of not locking, and certain external force is needed to rotate lock by user, can prevent false touch, improve the user's use experience.

[0033] Reference Figures 1 to 8 The embodiment provides a safety door lock which comprises a fixed plate 1, an adjusting plate 2 and an elastic assembly 3.

[0034] The fixed plate 1 is provided with a through hole 11 extending along the axial direction of the fixed plate 1, the bottom of the through hole 11 is provided with a sealing plug 12, the side of the through hole 11 is provided with an opening 14, and the top of the opening 14 is provided with at least one notch 15 smaller than the opening 14.

[0035] The adjusting plate 2 comprises an adjusting ring 21, a connecting part 22 and a protection part 23, the adjusting ring 21 is arranged in the through hole 11, one end of the connecting part 22 is connected to the adjusting ring 21, and the other end of the connecting part 22 extends to the outside of the through hole 11 through the opening 14 and is connected to the protection part 23.

[0036] The elastic assembly 3 comprises an elastic piece 31 and a moving piece 32, one end of the moving piece 32 is inserted into the through hole 11 along the top end of the through hole 11, the other end of the moving piece 32 is lapped on the outer edge of the through hole 11, and the elastic piece 31 is arranged between the moving piece 32 and the sealing plug 12 and is in a compressed state.

[0037] The adjusting ring 21 is fixedly connected to the outer periphery of the moving piece 32. Specifically, the outer periphery of the moving piece 32 is provided with a first thread 321, the inner periphery of the adjusting ring 21 is provided with a second thread 211, and the first thread 321 and the second thread 211 are connected in a matched mode, so that the moving piece 32 and the adjusting ring 21 are in a linkage relationship.

[0038] It can be understood that the service life of the elastic piece 31 is limited, and after frequent use, the elastic piece 31 will lose elasticity and cannot provide an effective pushing force for the movement of the moving piece 32, resulting in that the safety door lock in the embodiment fails to be locked, or the moving piece 32 is stuck, so that the safety door lock cannot be unlocked. By designing the connecting structure of the moving piece 32 and the adjusting plate 2 as a detachable threaded connection, the user can threadedly rotate and remove the moving piece 32 from above the through hole 11 to replace the elastic piece 31 inside the through hole 11, so as to ensure the normal use of the safety door lock.

[0039] Under the action of an external force, the connecting part 22 can rotate along the opening 14, since the adjusting ring 21 and the moving piece 32 are in a linkage relationship and the elastic piece 31 is in a compressed state, it means that the elastic piece 31 has the ability of elastic return, and the elastic return ability of the elastic piece 31 can provide a force for the moving piece 32 to move upward.

[0040] When the adjusting ring 21 rotates in the part of the opening 14 without the notch 15, the return force provided by the elastic piece 31 will make the connecting part 22 abut against the top wall of the opening 14, and the moving piece 32 is limited and cannot move upward, at this time, the safety door lock of the embodiment is in an unlocked state.

[0041] When the connecting part 22 is rotated to be opposite to the notch 15, the reset force provided by the elastic member 31 will push the moving part 32 to move upward, at the same time, the connecting part 22 is slid into the notch 15 and abuts against the top wall of the notch 15, at this time, the safety door lock of the embodiment is in the locked state; when it is needed to be unlocked again, the user needs to exert a certain force on the adjusting plate 2, so that the connecting part 22 in the adjusting plate 2 moves downward into the opening 14 and rotates along the opening 14 until the connecting part 22 is misaligned with the notch 15.

[0042] It can be understood that by arranging the elastic assembly 3, the adjusting plate 2 will be abutted against the fixed plate 1 by the elastic assembly 3 without locking, and a certain external force needs to be exerted by the user to rotate the lock, which can prevent accidental touch and solve the technical problem that the door lock is locked by accidental touch in the prior art, thereby bringing inconvenience to the user.

[0043] Preferably, the sealing plug 12 is arranged in a cylindrical structure, one end of the sealing plug 12 is arranged in a closed structure, the one end of the sealing plug 12 is provided with an opening 122, the elastic member 31 is arranged inside the sealing plug 12, and the bottom of the moving part 32 is inserted into the inside of the sealing plug 12 along the opening 122 and compresses the elastic member 31. By arranging the sealing plug 12 in a cylindrical structure, the inner wall of the sealing plug 12 can guide the movement direction of the elastic member 31, which facilitates the compression of the elastic member 31 by the moving part 32 or facilitates the upward movement of the moving part 32 by the elastic member 31.

[0044] Correspondingly, the cylindrical structure of the sealing plug 12 can also guide the movement direction of the moving part 32, so that the moving part 32 can move in the vertical direction.

[0045] Preferably, the outer periphery of the sealing plug 12 is provided with a third thread 121, the inner wall of the through hole 11 is provided with a fourth thread 13, the third thread 121 is matched with the fourth thread 13, and the detachable connection of the sealing plug 12 and the through hole 11 is realized.

[0046] According to the above description, by designing the connection structure of the sealing plug 12 and the fixed plate 1 as a detachable threaded connection, the user can threadedly rotate and remove the sealing plug 12 from the fixed plate 1 to replace the elastic member 31 inside the through hole 11, thereby ensuring the normal use of the safety door lock.

[0047] Preferably, the side of the through hole 11 is provided with two openings 14, the top of each of the two openings 14 is provided with a notch 15, and the adjusting plate 2 is provided with two adjusting rings 21 and two connecting parts 22. The two adjusting rings 21 correspond to the two openings 14 one by one, and the two connecting parts 22 can be respectively inserted into the notches 15 at the top of the corresponding openings 14.

[0048] Preferably, the fixing plate 1 is provided with a plurality of mounting holes 171. As can be seen from the drawings, the mounting holes 171 include round holes and waist-shaped holes, which can cooperate with different locking components to fix the fixing plate 1 to the door frame 4.

[0049] Preferably, the fixing plate 1 includes a first fixing portion 16 and a second fixing portion 17, the mounting holes 171 are arranged on the second fixing portion 17, and the second fixing portion 17 is integrally formed with the first fixing portion 16, and the through hole 11 is arranged on the first fixing portion 16.

[0050] Preferably, the first fixing portion 16 is arranged protruding from the surface of the second fixing portion 17, and the included angle a between the first fixing portion 16 and the second fixing portion 17 is 90 degrees. It can be understood that when the safety door lock provided in the embodiment is fixed to the door frame 4 for use, the second fixing portion 17 is fixedly connected to the side of the door frame 4, and the included angle formed by the first fixing portion 16 and the second fixing portion 17 can be closely fitted to the edge of the door frame 4, thereby saving the installation space of the safety door lock.

[0051] Preferably, the top of the opening 14 is provided with a first notch 151 and a second notch 152, the first notch 151 is arranged on the side of the first fixing portion 16 close to the second fixing portion 17, and the second notch 152 is arranged on the side of the first fixing portion 16 away from the second fixing portion 17. When the safety door lock in the embodiment is installed on the door, the first fixing portion 16 and the second fixing portion 17 overlap the side and the edge of the door frame 4, and when the user rotates the adjusting plate 2 until the connecting portion 22 slides into the first notch 151 under the action of the elastic assembly 3, the safety door lock in the embodiment is in a locked state, which can provide a protection function. When the user needs to enter or exit the door, the adjusting plate 2 is moved downward to move away from the first notch 151 and is rotated in the opening 14 until the connecting portion 22 slides into the second notch 152 under the action of the elastic assembly 3, and the safety door lock in the embodiment is in an unlocked state, and the user can freely open the door to enter or exit.

[0052] It can be understood that if only the first notch 151 is arranged on the side of the first fixing portion 16 close to the second fixing portion 17, the adjusting plate 2 can also be moved in the notch 15 and the opening 14 under the action of an external force to realize the functions of locking and unlocking. However, this design has defects. For example, when the adjusting plate 2 is rotated into the opening 14, the user's body is easy to hit the adjusting plate 2 during the process of entering or exiting the door, which has a security risk, and if the hitting force is large, the adjusting plate 2 can also be rotated to the locked state, which affects the user's use. The second notch 152 is arranged on the side of the first fixing portion 16 away from the second fixing portion 17, and when the user enters or exits the door, the adjusting plate 2 can be moved to the second notch 152 on the side of the door frame 4 away from the door panel to be clamped, thereby avoiding the body from hitting the adjusting plate 2 and reducing the security risk.

[0053] Preferably, the adjusting ring 21, the connecting part 22 and the protection part 23 are integrally formed. By adopting the process of integral forming to manufacture the adjusting plate 2, there is no extra connecting point, which can provide strong protection ability and reduce the occurrence of violent intrusion into the room.

[0054] Further, the protection part 23 comprises a first protection part 231 and a second protection part 232, the first protection part 231 is connected to the connecting part 22 and is perpendicular to the connecting part 22, and the second protection part 232 is connected to an end of the first protection part 231 away from the connecting part 22 and has an angle b of 90 degrees with the first protection part 231. When the connecting part 22 is moved into the first gap 151, the safety door lock is in the locked state, the first protection part 231 is parallel to the second fixed part 17, and the second protection part 232 is parallel to the wall surface 5, which can not only provide better protection, but also avoid the user from hitting the protection part 23.

[0055] Further, the second protection part 232 is provided with a protruding part 233, which is arranged on a side of the second protection part 232 away from the first protection part 231. The protruding part 233 is connected to the surface of the second protection part 232 through a round corner. By arranging the protruding part 233, the anti-collision ability of the protection part 23 is improved.

[0056] It can be understood that those skilled in the art can combine various embodiments in the above embodiments according to the teachings of the above embodiments to obtain technical solutions of various embodiments.

[0057] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A security door lock, characterized in that, The device includes a fixed plate, an adjusting plate, and an elastic component. The fixed plate has a through hole extending axially therein, a sealing plug at the bottom of the through hole, an opening on the side of the through hole, and at least one notch smaller than the opening at the top of the opening. The adjusting plate includes an adjusting ring, a connecting part, and a protective part. The adjusting ring is disposed in the through hole, one end of the connecting part is connected to the adjusting ring, and the other end of the connecting part extends through the opening to the outside of the through hole and is connected to the protective part. The elastic component includes an elastic element and a moving element. One end of the moving element is inserted into the through hole along the through hole away from the sealing plug, and the other end of the moving element overlaps the outer edge of the through hole. The elastic element is disposed between the moving element and the sealing plug and is in a compressed state. The adjusting ring is fixedly connected to the outer periphery of the moving element.

2. A security door lock according to claim 1, characterized in that, The outer circumference of the moving part is provided with a first thread, and the inner circumference of the adjusting ring is provided with a second thread. The first thread and the second thread are adapted to each other, and the adjusting ring and the moving part are fixedly connected by the threads.

3. A security door lock according to claim 1, characterized in that, The sealing plug is a cylindrical structure, with one end of the sealing plug being a closed structure and the other end having an opening; the elastic element is located inside the sealing plug; the bottom of the moving element is inserted into the sealing plug along the opening and compresses the elastic element.

4. A security door lock according to claim 1, characterized in that, The outer periphery of the sealing plug is provided with a third thread, and the inner wall of the through hole is provided with a fourth thread. The third thread and the fourth thread are adapted to each other, and the sealing plug and the through hole are fixedly connected by threaded engagement.

5. A security door lock according to claim 1, characterized in that, The through hole has two openings on its side, and each of the two openings has a notch at its top; the adjustment plate has two adjustment rings and two connecting parts.

6. A security door lock according to claim 1, characterized in that, The mounting plate has multiple mounting holes.

7. A security door lock according to claim 6, characterized in that, The fixing plate includes a first fixing part and a second fixing part, the mounting hole is provided on the second fixing part, and the second fixing part is integrally formed with the first fixing part; the through hole is provided on the first fixing part.

8. A security door lock according to claim 7, characterized in that, The top of the opening is provided with a first notch and a second notch. The first notch is located on the side of the first fixing part closer to the second fixing part, and the second notch is located on the side of the first fixing part away from the second fixing part.

9. A security door lock according to claim 1, characterized in that, The adjusting ring, the connecting part, and the protective part are integrally formed.

10. A security door lock according to claim 1, characterized in that, The protective part includes a first protective part and a second protective part, wherein the first protective part is connected to the connecting part and is perpendicular to the connecting part.

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