A lock

Abstract

The present invention discloses a lock, which includes: a main body; a blocking member movably arranged inside the main body, the blocking member can swing up and down relative to the main body, and the blocking member is provided with a first abutting surface; a lock tongue flexibly arranged on the main body, the lock tongue is provided with a avoidance portion facing the blocking member and a second abutting surface, the avoidance portion is located above the second abutting surface; a linkage member flexibly arranged on the main body, the linkage member is used to drive the blocking member to swing; wherein, after the lock tongue is extended relative to the main body, the linkage member can be subjected to external force to link the blocking member to move, so that the first abutting surface can swing to face the second abutting surface. The lock of the above structure can form a planar contact with the lock tongue during the swinging process through the blocking member, thereby increasing the force contact area between the two, thereby improving the bearing capacity of the blocking member to hinder the movement of the lock tongue, and ensuring the service life of the lock.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a lock. Background Art

[0002] Currently, locks are achieved by locking a door with a bolt that engages a groove in the door frame. To prevent the bolt from exiting the groove under external force, locks are equipped with a safety mechanism to ensure the door is locked. However, existing safety mechanisms have weak resistance, making locks less reliable. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a lock in which a blocking member can form a planar contact with the lock tongue during the swinging process, thereby increasing the contact area between the two and thereby improving the blocking member's ability to resist the movement of the lock tongue, thereby ensuring the service life of the lock.

[0004] According to an embodiment of the present invention, a lock includes: a main body; a blocking member movably arranged inside the main body, the blocking member can swing up and down relative to the main body, and the blocking member is provided with a first abutting surface; a lock tongue retractably arranged on the main body, the lock tongue is provided with an avoidance portion and a second abutting surface facing the blocking member, and the avoidance portion is located above the second abutting surface; a linkage member retractably arranged on the main body, the linkage member is used to drive the blocking member to swing; wherein, after the lock tongue is extended relative to the main body, the linkage member can be subjected to external force to link the blocking member to move, so that the first abutting surface can swing to face the second abutting surface.

[0005] The lock according to the embodiment of the present invention has at least the following beneficial effects: when closing the door, the door frame rotates and squeezes the lock tongue to the right and retract into the main body. When the door frame rotates until the groove on it is opposite to the lock tongue, the lock tongue returns to the left and extends out of the main body and engages the groove, achieving the effect of locking the door. During this process, the linkage member is also squeezed by the door frame and retracts to the right into the main body, and the linkage member and the blocking member swing, so that the first abutting surface can form a face-to-face state with the second abutting surface, and then the blocking member is used to prevent the lock tongue from being retracted into the main body again due to external force, thereby ensuring the reliability of locking the door, having a compact structure, and good anti-theft performance. Among them, the first abutting surface and the second abutting surface can form a planar contact, which increases the contact area between the two forces, thereby increasing the bearing capacity of the blocking member to hinder the movement of the lock tongue, thereby ensuring the service life of the lock.

[0006] In some embodiments of the present invention, the main body is provided with a fixing member, the blocking member is inserted into the fixing member, and the blocking member is provided with an arc-shaped guide portion, which can always abut against the fixing member during the swinging process of the blocking member.

[0007] In some embodiments of the present invention, the blocking member is provided with a limiting member, the limiting member abuts against the arc-shaped guide portion, and a first elastic member is provided between the lock tongue and the limiting member, and the two ends of the first elastic member respectively abut against the lock tongue and the limiting member.

[0008] In some embodiments of the present invention, the fixing member is slidably provided with an installation member, the installation member is provided with a first sliding groove, the extension direction of the first sliding groove is parallel to the extension direction of the avoidance portion, and the locking tongue is provided with a limiting axis located in the first sliding groove. Under the action of the first elastic member, the locking tongue can move back and forth along the length direction of the first sliding groove.

[0009] In some embodiments of the present invention, the mounting member is provided with a second slide groove, the extension direction of the second slide groove is consistent with the extension direction of the first slide groove, the linkage member is provided with a supporting portion located in the second slide groove, the supporting portion is used to support the blocking member toward the avoidance portion, and a second elastic member is provided between the linkage member and the fixing member, the second elastic member is used to reset the supporting portion in the second slide groove.

[0010] In some embodiments of the present invention, the blocking member includes a flat plate portion and a raised portion, the raised portion is arranged on the lower surface of the flat plate portion, the first abutting surface is the end surface of the flat plate portion away from the fixing member, the supporting portion abuts against the raised portion to support the blocking member toward the avoidance portion, and when the supporting portion is separated from the raised portion, the raised portion can swing down and fall into the second sliding groove.

[0011] In some embodiments of the present invention, the cross-section of the protrusion in the vertical direction is triangular.

[0012] In some embodiments of the present invention, the main body is provided with a positioning groove, the fixing member is provided with a positioning portion that cooperates with the positioning groove, the mounting member is provided with a limiting column, and the main body is rotatably provided with a driving member, and the driving member can rotate and abut against the limiting column to drive the mounting member to move relative to the fixing member and lift the blocking member.

[0013] In some embodiments of the present invention, the main body includes an upper shell and a lower shell, the upper shell abuts against the lower shell to form a hollow cylindrical shape, and a sleeve is sleeved on the outside of the main body to fix the upper shell and the lower shell.

[0014] In some embodiments of the present invention, one of the upper shell and the lower shell is provided with a positioning protrusion, and the other is provided with a through hole that matches the positioning protrusion.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0017] Figure 1 A schematic structural diagram of an embodiment of a lock according to the present invention;

[0018] Figure 2 for Figure 1 An internal cross-sectional view of an embodiment;

[0019] Figure 3 for Figure 1 An exploded view of an embodiment;

[0020] Figure 4 for Figure 1 A schematic structural diagram of a mounting member in an embodiment;

[0021] Figure 5 for Figure 1 A schematic structural diagram of a fixing member in an embodiment;

[0022] Figure 6 for Figure 1 A schematic structural diagram of a blocking member in an embodiment.

[0023] In the figure: main body 100, upper shell 101, lower shell 102, sleeve 103, positioning protrusion 104, through hole 105, fixing member 110, positioning portion 111, through hole 112, notch portion 113, mounting member 120, first slide groove 121, second slide groove 122, limiting column 123, positioning groove 130, blocking member 200, flat plate portion 201, protruding portion 202, first abutting surface 210, arc-shaped guide portion 220, plug-in portion 230, lock tongue 300, avoidance portion 310, second abutting surface 320, limiting shaft 330, linkage member 400, supporting portion 410, limiting member 500, opening portion 510, first elastic member 600, second elastic member 700, driving member 800. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] See also Figures 1 to 3 , a lock comprises: a main body 100; a blocking member 200, which is movably arranged inside the main body 100, the blocking member 200 can swing up and down relative to the main body 100, and the blocking member 200 is provided with a first abutting surface 210; a lock tongue 300, which is retractably arranged on the main body 100, and the lock tongue 300 is provided with an avoidance portion 310 and a second abutting surface 320 facing the blocking member 200, and the avoidance portion 310 is located above the second abutting surface 320; a linkage member 400, which is retractably arranged on the main body 100, and the linkage member 400 is used to drive the blocking member 200 to swing; wherein, after the lock tongue 300 is extended relative to the main body 100, the linkage member 400 can be subjected to external force to link the blocking member 200 to move, so that the first abutting surface 210 can swing to face the second abutting surface 320.

[0029] With the lock structure described above, when the door is closed, the door frame rotates, forcing the lock tongue 300 rightward into the main body 100. When the door frame rotates until the groove on the door frame faces the lock tongue 300, the lock tongue 300 returns to the left, extending out of the main body 100 and engaging the groove, thereby locking the door. During this process, the linkage member 400 is also squeezed by the door frame and retracts rightward into the main body 100. The linkage member 400, in conjunction with the blocking member 200, swings, causing the first abutting surface 210 to come into contact with the second abutting surface 320. The blocking member 200 then prevents the lock tongue 300 from being retracted into the main body 100 due to external forces. This ensures reliable door locking, a compact structure, and excellent anti-theft performance. Furthermore, the first abutting surface 210 and the second abutting surface 320 form a planar contact, increasing the contact area between the two, thereby increasing the resistance of the blocking member 200 to hinder the movement of the lock tongue 300, thereby ensuring the service life of the lock.

[0030] See also Figure 3 、 Figure 5 and Figure 6 In some embodiments of the present invention, the main body 100 is provided with a fixing member 110, and the blocking member 200 is inserted into the fixing member 110. The blocking member 200 is provided with an arc-shaped guide portion 220. The arc-shaped guide portion 220 can always abut against the fixing member 110 during the swinging process of the blocking member 200. Specifically, the fixing member 110 is provided with two through holes 112 in the horizontal direction. The through holes 112 are located at the upper part of the fixing member 110, and one end of the blocking member 200 is provided with an inserting portion 230 that cooperates with the through holes 112. The inserting portion 230 cooperates with the through holes 112, allowing the blocking member 200 to form a lever swing relative to the fixing member 110, facilitating rapid assembly of the two. Among them, the arc-shaped guide portion 220 can always contact the fixing member 110 to form a force point, thereby improving the smoothness of the swinging of the blocking member 200. It is understandable that the arc-shaped guide portion 220 can be bent by the blocking member 200 to form an integrated structure.

[0031] See also Figure 2 、 Figure 3 and Figure 6In some embodiments of the present invention, the blocking member 200 is provided with a limiter 500, which abuts against the arc-shaped guide portion 220. A first elastic member 600 is provided between the lock tongue 300 and the limiter 500, and the two ends of the first elastic member 600 abut against the lock tongue 300 and the limiter 500, respectively. Specifically, under the elastic force of the first elastic member 600, the limiter 500 can always press the blocking member 200 against the fixing member 110, preventing the blocking member 200 from separating from the fixing member 110 during the swinging process, thereby ensuring the reliability of the product. In addition, the first elastic member 600 also facilitates the telescopic reset of the lock tongue 300. Among them, the limiter 500 can be provided with an opening 510, which can also enable the limiter 500 to be inserted into the blocking member 200, simplifying the installation of the limiter 500 and facilitating subsequent disassembly.

[0032] See also Figure 2 and Figure 4 In some embodiments of the present invention, the fixing member 110 is slidably provided with a mounting member 120. The mounting member 120 is provided with a first sliding groove 121. The extension direction of the first sliding groove 121 is parallel to the extension direction of the avoidance portion 310. The lock tongue 300 is provided with a limiting shaft 330 located in the first sliding groove 121. Under the action of the first elastic member 600, the lock tongue 300 can reciprocate along the length direction of the first sliding groove 121. The diameter of the limiting shaft 330 can be consistent with the width of the first sliding groove 121, which helps to avoid displacement deviation of the lock tongue 300 and improves the smoothness of the telescopic movement of the lock tongue 300 relative to the main body 100.

[0033] See also Figures 3 to 5 In some embodiments of the present invention, the mounting member 120 is provided with a second chute 122 extending in the same direction as the first chute 121. The linkage member 400 is provided with a support portion 410 located in the second chute 122. The support portion 410 is used to support the blocking member 200 toward the avoidance portion 310. A second elastic member 700 is provided between the linkage member 400 and the fixed member 110. The second elastic member 700 is used to reset the support portion 410 within the second chute 122. Specifically, the support portion 410 moves within the second chute 122, guiding and limiting the movement of the linkage member 400 and improving the smoothness of the linkage member 400's telescopic movement. In certain embodiments, the fixed member 110 is provided with two parallel notches 113. One end of the second chute 122 can penetrate the mounting member 120 to form an open end. This facilitates the sliding insertion of the notch 113 into the mounting member 120 from the open end, simplifying the installation process of the fixed member 110 and facilitating subsequent replacement and maintenance.

[0034] See also Figure 2 、 Figure 3 and Figure 6In some embodiments of the present invention, the blocking member 200 includes a flat portion 201 and a raised portion 202. The raised portion 202 is located on the lower surface of the flat portion 201. The first abutting surface 210 is the end surface of the flat portion 201 facing away from the fixing member 110. The supporting portion 410 abuts the raised portion 202 to support the blocking member 200 toward the escape portion 310. When the supporting portion 410 disengages from the raised portion 202, the raised portion 202 can swing downward and fall into the second chute 122. Specifically, the flat portion 201 helps increase the structural strength of the blocking member 200, improving its bending strength during use and thereby enhancing the product's durability. When the raised portion 202 disengages from the supporting portion 410 and falls into the second chute 122, the mounting member 120 can be moved rightward to push the blocking member 200 upward, thereby allowing the mounting member 120 to support the blocking member 200 toward the escape portion 310, facilitating subsequent door opening.

[0035] See also Figure 2 and Figure 6 In some embodiments of the present invention, the vertical cross-section of the protrusion 202 is triangular. Specifically, the triangular shape facilitates the formation of two inclined surfaces facing left and right. The inclined surfaces enable the support portion 410 or the mounting member 120 to push the protrusion 202 with relatively little force, facilitating the rapid upward swing of the blocking member 200 toward the avoidance portion 310.

[0036] See also Figure 3 and Figure 6 In some embodiments of the present invention, the main body 100 is provided with a positioning slot 130, the fixing member 110 is provided with a positioning portion 111 that cooperates with the positioning slot 130, and the mounting member 120 is provided with a limiting post 123. The main body 100 is rotatably provided with a driving member 800. The driving member 800 can rotate and abut against the limiting post 123, thereby driving the mounting member 120 to move relative to the fixing member 110 and lift the blocking member 200. Specifically, when the door needs to be opened, the driving member 800 is rotated so that the driving member 800 can rotate and abut against the limiting post 123, driving the mounting member 120 to move rightward within the rotation range of the driving member 800, thereby causing the mounting member 120 to lift the blocking member 200 toward the avoidance portion 310, ultimately allowing the lock tongue 300 to retract and retract to open the door. The cooperation between the positioning slot 130 and the positioning portion 111 enables the fixing member 110 to be quickly fixed to the main body 100, improving installation efficiency.

[0037] See also Figures 1 to 3In some embodiments of the present invention, the main body 100 includes an upper shell 101 and a lower shell 102. The upper shell 101 abuts against the lower shell 102 to form a hollow cylindrical shape. A sleeve 103 is sleeved on the outside of the main body 100 to fix the upper shell 101 and the lower shell 102. Specifically, after the other components are installed on the lower shell 102, the upper shell 101 is covered on the lower shell 102, and finally the two are fixed together using the sleeve 103. The overall installation is quick and convenient, the structure is compact, and it is also convenient for subsequent maintenance and replacement. Among them, the upper shell 101 and the lower shell 102 are both integrated shell components, which is conducive to improving the bending strength of the product and preventing the product from being deformed due to stress.

[0038] See also Figures 1 to 3 In some embodiments of the present invention, one of the upper shell 101 and the lower shell 102 is provided with a positioning protrusion 104, and the other is provided with a through-hole 105 that cooperates with the positioning protrusion 104. Specifically, the provision of the positioning protrusion 104 and the through-hole 105 helps to improve the fit between the upper shell 101 and the lower shell 102, preventing positional deviation that may cause the product to become loose.

[0039] See also Figure 2 The working principle of the present invention is as follows: when the door is open, the support portion 410 abuts the raised portion 202, causing the first abutting surface 210 of the blocking member 200 to face the escape portion 310. When the door is closed, the lock tongue 300 is squeezed by the door frame and retracts rightward into the main body 100, causing the first abutting surface 210 to be located in the escape portion 310. The linkage member 400 is also squeezed by the door frame, causing the support portion 410 to move backward. When the lock tongue 300 is aligned with the groove of the door frame, under the elastic force of the first elastic member 600, the lock tongue 300 returns and extends to insert into the groove, finally locking the door, and the first abutting surface 210 also exits the escape portion 310. At this time, since the support portion 410 moves backward and staggers the raised portion 202, one end of the blocking member 200 swings downward due to gravity, causing the first abutting surface 210 to face the second abutting surface 320, and the raised portion 202 to fall into the second sliding groove 122. When the door needs to be opened and unlocked, the driving member 800 only needs to be rotated so that the driving member 800 pushes the mounting member 120 to move rightward, causing the mounting member 120 to lift the blocking member 200 again, thereby causing the first abutting surface 210 to face the avoidance portion 310 again, and finally allowing the lock tongue 300 to retract into the main body 100 to complete the subsequent door opening operation.

[0040] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A lock, characterized in that: include: main body (100); a blocking member (200) movably disposed inside the main body (100), the blocking member (200) being capable of swinging up and down relative to the main body (100), and the blocking member (200) being provided with a first abutting surface (210); A locking tongue (300) is retractably provided on the main body (100), the locking tongue (300) being provided with an avoidance portion (310) facing the blocking member (200) and a second abutting surface (320), the avoidance portion (310) being located above the second abutting surface (320); A linkage member (400) is retractably provided on the main body (100), and the linkage member (400) is used to drive the blocking member (200) to swing; After the locking tongue (300) extends relative to the main body (100), the linkage member (400) can be subjected to an external force to link the blocking member (200) to move, so that the first abutting surface (210) can swing to face the second abutting surface (320); The linkage member (400) is provided with a support portion (410), and the support portion (410) is used to support the blocking member (200) toward the avoidance portion (310); The main body (100) is provided with a fixing member (110), and the blocking member (200) is plugged into the fixing member (110). The blocking member (200) comprises a flat plate portion (201) and a raised portion (202), wherein the raised portion (202) is provided on the lower surface of the flat plate portion (201), the first abutting surface (210) is the end surface of the flat plate portion (201) away from the fixing member (110), the supporting portion (410) abuts against the raised portion (202) to support the blocking member (200) toward the avoidance portion (310), and when the supporting portion (410) is separated from the raised portion (202), the raised portion (202) can swing downward.

2. A lock according to claim 1, characterized in that: The blocking member (200) is provided with an arc-shaped guide portion (220), and the arc-shaped guide portion (220) can always abut against the fixing member (110) during the swinging process of the blocking member (200).

3. A lock according to claim 2, characterized in that: The blocking member (200) is provided with a limiting member (500), the limiting member (500) abuts against the arc-shaped guide portion (220), a first elastic member (600) is provided between the locking tongue (300) and the limiting member (500), and two ends of the first elastic member (600) respectively abut against the locking tongue (300) and the limiting member (500).

4. A lock according to claim 3, characterized in that: The fixing member (110) is slidably provided with a mounting member (120), and the mounting member (120) is provided with a first sliding groove (121), and the extension direction of the first sliding groove (121) is parallel to the extension direction of the avoidance portion (310), and the locking tongue (300) is provided with a limiting shaft (330) located in the first sliding groove (121), and under the action of the first elastic member (600), the locking tongue (300) can reciprocate along the length direction of the first sliding groove (121).

5. A lock according to claim 4, characterized in that: The mounting member (120) is provided with a second slide groove (122), the extension direction of the second slide groove (122) is consistent with the extension direction of the first slide groove (121), the support portion (410) is located in the second slide groove (122), and a second elastic member (700) is provided between the linkage member (400) and the fixing member (110), and the second elastic member (700) is used to reset the support portion (410) in the second slide groove (122).

6. A lock according to claim 5, characterized in that: When the supporting portion (410) is separated from the protruding portion (202), the protruding portion (202) can swing downward and fall into the second sliding groove (122).

7. A lock according to claim 6, characterized in that: The cross-section of the protrusion (202) in the vertical direction is in the shape of a triangle.

8. The lock according to claim 6, characterized in that: The main body (100) is provided with a positioning groove (130), the fixing member (110) is provided with a positioning portion (111) matched with the positioning groove (130), the mounting member (120) is provided with a limiting column (123), and the main body (100) is rotatably provided with a driving member (800), and the driving member (800) can be rotated to abut against the limiting column (123) to drive the mounting member (120) to move relative to the fixing member (110) and lift the blocking member (200).

9. The lock according to claim 1, characterized in that: The main body (100) comprises an upper shell (101) and a lower shell (102), wherein the upper shell (101) abuts against the lower shell (102) to form a cylindrical shape with a hollow interior, and a sleeve (103) is sleeved on the exterior of the main body (100) to fix the upper shell (101) and the lower shell (102).

10. A lock according to claim 9, characterized in that: One of the upper shell (101) and the lower shell (102) is provided with a positioning protrusion (104), and the other is provided with a through hole (105) that matches the positioning protrusion (104).

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