Door lock capable of being installed without screws

Abstract

The invention discloses a bolt-free installation door lock, and relates to the technical field of door locks, the bolt-free installation door lock comprises a lock shell, the lock shell is provided with an installation part protruding outwards, the installation part is provided with a first side wall and a second side wall which are symmetrical, and the end of the first side wall and the end of the second side wall are respectively provided with a flange extending outwards; the first limiting block is fixedly connected with the lock shell and protrudes out of the first side wall of the mounting part; the second limiting block is movably connected with the lock shell, the second limiting block has a locking state protruding out of the second side wall, and the second limiting block further has an unlocking state leaving the position protruding out of the second side wall; according to the technical scheme, the second limiting block is matched with the first limiting block, and the mounting part of the door lock is clamped in the door plate hole, so that when the door lock is mounted and dismounted, the moving distance of the second limiting block can be reduced, and the labor consumption during mounting and dismounting is reduced.

Description

Technical Field

[0001] This invention relates to the field of door lock technology, and more specifically to a screwless door lock. Background Technology

[0002] In screwless door lock installations, the lock is typically secured to the door panel through a deformation of a spring-loaded element. However, during installation and removal, the spring-loaded element often requires significant deformation to remove the lock from the door panel. This design necessitates a high degree of elasticity in the spring-loaded element to ensure the lock is securely installed. This results in considerable force being applied during installation and removal, making the process relatively laborious. Summary of the Invention

[0003] In view of this, the present invention provides a screwless door lock to solve the problem of laborious installation and disassembly of existing door locks.

[0004] This invention provides a screwless door lock, comprising: A lock case having an outwardly protruding mounting portion having symmetrical first and second sidewalls, the ends of the first and second sidewalls having outwardly extending flanges respectively; The first limiting block is fixedly connected to the lock housing, and the first limiting block protrudes from the first side wall of the mounting part; The second limiting block is movably connected to the lock housing. The second limiting block has a locked state protruding from the second side wall, and the second limiting block also has an unlocked state where it moves away from the position protruding from the second side wall 202.

[0005] The technical solution of this invention uses the cooperation of the second limiting block and the first limiting block to engage the mounting part of the door lock in the hole of the door panel. With this configuration, the movement distance of the second limiting block can be reduced when installing and removing the door lock, thereby reducing the effort required for installation and removal.

[0006] Optionally, the first limiting block is fixedly connected to the back of the flange on the first sidewall.

[0007] Optionally, an elastic element is connected to the second limiting block, the elastic element having an elastic force that drives the second limiting block to move toward the locked state.

[0008] Optionally, the second sidewall has a recess, and at least a portion of the second limiting block is located within the recess.

[0009] Optionally, the second limiting block is slidably connected to the lock housing, and the movement trajectory of the second limiting block between the locked state and the unlocked state is perpendicular to the second side wall.

[0010] Optionally, the second limiting block has a plurality of spaced-apart blocks.

[0011] Optionally, the first limiting block has a notch, and an unlocking component is provided in the notch, the unlocking component having an unlocking position protruding from the notch.

[0012] Optionally, the unlocking element is rotatably connected to the lock housing.

[0013] Optionally, a groove is formed inside the first limiting block.

[0014] Optionally, the lock housing includes: a detachably connected upper shell and a lower shell, the lower shell having a mounting groove for accommodating the unlocking component, and the upper shell covering the opening of the mounting groove.

[0015] Optionally, the unlocking element has an operating part that extends to the side of the lock housing. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A perspective view of a screwless door lock provided in an embodiment of the present invention; Figure 2 for Figure 1 The image shown is a three-dimensional view taken from below when a screwless door lock is installed. Figure 3 for Figure 2 A schematic diagram of a screwless door lock with a hidden second limiting block. Figure 4 for Figure 1 The front view of the screwless door lock shown. Figure 5 for Figure 4 The diagram shows the second limiting block of a screwless door lock moving to the unlocked state; Figure 6 for Figure 1 The diagram shown illustrates the first step in installing a screwless door lock. Figure 7 for Figure 6 The main view; Figure 8 for Figure 7 The diagram shown illustrates the second step of installing a screwless door lock. Figure 9 for Figure 8 The diagram shows the third step in the installation of a screwless door lock. Figure 10 for Figure 9 The image shown is a 3D view of the screwless door lock after installation. Figure 11 for Figure 1 The diagram shows the unlocking mechanism of a screwless door lock moving to the unlocked position. Figure 12 for Figure 11 The diagram shows a screwless door lock with a concealed unlocking mechanism. Figure 13 for Figure 11 The image shows a perspective view of the unlocking mechanism in a screwless door lock.

[0018] Explanation of reference numerals in the attached figures 1. Lock case; 101. Upper case; 102. Lower case; 103. Mounting slot; 2. Mounting part; 201. First sidewall; 202. Second sidewall; 203. Flange; 204. Recess; 3. First limiting block; 301. Notch; 302. Groove; 4. Second limit block; 5. Unlocking parts; 501. Operating unit; 6. Door panels. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figure 1 , Figure 2 As shown, this is a specific embodiment of the screwless door lock provided in this example, including: a lock housing 1, the lock housing 1 having an outwardly protruding mounting portion 2, the mounting portion 2 having a symmetrical first sidewall 201 and a second sidewall 202, the ends of the first sidewall 201 and the second sidewall 202 respectively having outwardly extending flanges 203.

[0024] like Figure 1 As shown, a first limiting block 3 is fixedly connected to the lock housing 1, and the first limiting block 3 protrudes from the first side wall 201 of the mounting part 2.

[0025] like Figure 2 , Figure 3 As shown, a second limiting block 4 is movably connected to the lock housing 1.

[0026] like Figure 4 As shown, the second limiting block 4 has a locking state that protrudes from the second sidewall 202; like Figure 5 As shown, the second limiting block 4 also has an unlocked state where it leaves the position protruding from the second sidewall 202. It should be noted that the second limiting block 4 leaving the position protruding from the second sidewall 202 can be either sliding away or rotating away; where, leaving means: it can leave in a direction away from the flange 203 or in a direction towards the interior of the second sidewall 202.

[0027] like Figure 6 , Figure 7 As shown, the screwless door lock provided in this embodiment is installed by first inserting the first end of the mounting part 2 into the hole of the door panel 6, so that the first side wall 201 of the door lock abuts against the inner wall of the hole of the door panel 6.

[0028] like Figure 8 As shown, the second end of the mounting part 2 is then inserted into the hole 6 in the door panel.

[0029] like Figure 9 , Figure 10 As shown, the door lock is then moved toward the second end of the mounting portion 2, i.e., the right end shown in the figure, so that the second limiting block 4 is inserted into the recess 204 of the second side wall 202, while the first limiting block 3 is engaged with the hole in the door panel 6. This allows the door lock to be installed on the door panel 6.

[0030] When disassembling, such as Figure 9 As shown, first move the door lock toward the second end of the mounting part 2, so that the second limiting block 4 sinks into the recess 204 of the second sidewall 202. Figure 8 As shown, the first limiting block 3 is then inserted into the hole 6 in the door panel, and the door lock is moved toward the second end of the mounting part 2, so that the first side wall 201 of the mounting part 2 abuts against the hole 6 in the door panel. Figure 7 As shown, the second end of the mounting part 2 is pulled out of the hole in the door panel 6 to remove the door lock.

[0031] The screwless door lock provided in this embodiment uses the cooperation of the second limiting block 4 and the first limiting block 3 to engage the mounting part 2 of the door lock in the hole 6 of the door panel. This arrangement reduces the movement distance of the second limiting block 4 when installing and removing the door lock, thereby reducing the effort required for installation and removal.

[0032] like Figure 11 , Figure 12 As shown, in some embodiments, the first limiting block 3 is fixedly connected to the back of the flange 203 on the first sidewall 201. This arrangement ensures a stable connection between the first limiting block 3 and the lock housing 1. Specifically, in this embodiment, the first limiting block 3 and the mounting part 2 are integrally formed. Of course, the above description is not limiting; in some embodiments, the first limiting block 3 and the mounting part 2 can also be movably connected.

[0033] In some embodiments, an elastic element is connected to the second limiting block 4, the elastic element having an elastic force that drives the second limiting block 4 to move toward the locked state. Specifically, the elastic element can be a spring. Of course, the above description is not limiting; in some alternative embodiments, the elastic element can be omitted, for example, a portion of the second limiting element can be made elastic.

[0034] like Figure 2 , Figure 3 As shown, in some embodiments, a second limiting block 4 is movably connected to the lock housing 1, and a recess 204 is provided on the second sidewall 202, with at least a portion of the second limiting block 4 located within the recess 204. The recess 204 provides guidance for the departure of the second limiting block 4.

[0035] In some embodiments, the second limiting block 4 is slidably connected to the lock housing 1, and the movement trajectory of the second limiting block 4 between the locked state and the unlocked state is perpendicular to the second side wall 202. This arrangement allows the second limiting block 4 to provide a stronger push against the hole in the door panel 6. Of course, the above description is not limiting; in some alternative embodiments, the second limiting block 4 may be rotatably connected to the lock housing 1. Alternatively, it may also be slidably connected, but its sliding trajectory is parallel to the second side wall 202.

[0036] like Figure 2 As shown, in some embodiments, the second limiting block 4 has multiple blocks spaced apart. Specifically, there may be two or more. This arrangement ensures the stability of the door lock even if one of the second limiting blocks 4 fails to reset in time. Of course, the above description is not limiting; in some alternative embodiments, only one second limiting block 4 may be provided.

[0037] like Figure 11 , Figure 12 As shown, in some embodiments, the first limiting block 3 has a notch 301, and an unlocking member 5 is disposed within the notch 301. The unlocking member 5 has an unlocking position protruding from the notch 301. This configuration improves the ease of disassembling the door lock by using the unlocking member 5. Of course, the above description is not limiting; in some alternative embodiments, the unlocking member 5 can be omitted.

[0038] like Figure 11 , Figure 12 , Figure 13 As shown, in some embodiments, the unlocking member 5 is rotatably connected to the lock housing 1. With this configuration, when disassembling the door lock, simply rotating the unlocking member 5 is sufficient to easily remove the lock. Of course, the above description is not limiting; in some alternative embodiments, the unlocking member 5 and the lock housing 1 can also be slidably connected.

[0039] like Figure 12 As shown, in some embodiments, a groove 302 is formed within the first limiting block 3. This groove serves to prevent rotation of the unlocking member 5, ensuring smooth unlocking. Of course, in some alternative embodiments, the groove 302 can be omitted.

[0040] like Figure 11 , Figure 12As shown, in some embodiments, the lock housing 1 includes a detachably connected upper housing 101 and a lower housing 102. The lower housing 102 has a mounting groove 103 for accommodating the unlocking member 5, and the upper housing 101 covers the opening of the mounting groove 103. This arrangement facilitates the installation and removal of the unlocking member 5. Of course, in some alternative embodiments, the unlocking member 5 can also be connected to the lock housing 1 in other ways, for example, by directly snapping it into the lock housing 1.

[0041] like Figure 11 , Figure 13 As shown, in some embodiments, the unlocking member 5 has an operating part 501 that extends to the side of the lock housing 1. This arrangement makes it easier to operate the unlocking member 5 via the operating part 501. Of course, in some alternative embodiments, the operating part 501 can be omitted or replaced with other operating structures.

[0042] Installation steps: Step 1: Hold the door lock and insert the first end of the mounting part 2 into the hole of the door panel 6, ensuring that the first side wall 201 of the door lock is in close contact with the inner wall of the hole of the door panel 6.

[0043] Step 2: Next, insert the second end of the mounting part 2 into the hole 6 in the door panel.

[0044] Step 3: Oriented toward the second end of mounting part 2 ( Figure 8 When the door lock is moved (from the right end), the second limiting block 4 is pressed by the inner wall of the hole in the door panel 6 and sinks into the recess 204 of the second side wall 202. At the same time, the first limiting block 3 is engaged with the hole in the door panel 6, completing the installation of the door lock on the door panel 6. Because the elastic element (such as a spring) connected to the second limiting block 4 has an elastic force that drives it to move toward the locked state, the second limiting block 4 will automatically return to the locked state where it partially protrudes from the second side wall 202 after being released, further securing the connection between the door lock and the door panel 6.

[0045] Disassembly steps: Step 1: Move the door lock along the second end of the mounting part 2 so that the second limiting block 4 is inserted into the recess 204 of the second side wall 202.

[0046] Step 2: Rotate the unlocking component 5 to disengage the first limiting block 3 from the door panel 6 hole, and insert the first limiting block 3 into the door panel 6 hole. Then continue to move the door lock toward the first end of the mounting part 2. Figure 8 Move it in the direction of the left end of the middle section until the first side wall 201 of the mounting part 2 abuts against the hole of the door panel 6.

[0047] Step 3: Finally, pull the second end of the mounting part 2 out of the hole 6 in the door panel to remove the door lock.

[0048] Installation principle: The screwless door lock provided in this embodiment has outwardly extending flanges 203 on both sides of the mounting portion 2 of the lock housing 1. A first limiting block 3 is fixedly connected to the first side wall 201, at least partially protruding from the first side wall 201. A second limiting block 4 is movably connected to the second side wall 202, having both locked and unlocked states. During installation, the two ends of the mounting portion 2 are first inserted sequentially into the holes of the door panel 6, then the door lock is moved so that the second limiting block 4 sinks into the recess 204, and the first limiting block 3 engages with the hole of the door panel 6, thus installing the door lock. The elastic element on the second limiting block 4 ensures that it can automatically return to the locked state, enhancing connection stability. Multiple spaced second limiting blocks 4 ensure door lock stability even when some cannot reset in time.

[0049] Disassembly principle: During disassembly, firstly, by operating the unlocking piece 5 on the first limiting block 3, the engagement between the first limiting block 3 and the hole in the door panel 6 is released, and the door lock is moved, causing the second limiting block 4 to sink into the recess 204. This allows the first limiting block 3 to be reinserted into the hole in the door panel 6, and the second end of the mounting part 2 ( Figure 8 The right side can be pulled out from the 6 holes in the door panel, thus completing the disassembly of the door lock.

[0050] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A screwless door lock, characterized in that, include: The lock housing (1) has an outwardly protruding mounting portion (2), the mounting portion (2) having a symmetrical first sidewall (201) and a second sidewall (202), the ends of the first sidewall (201) and the second sidewall (202) having outwardly extending flanges (203). The first limiting block (3) is fixedly connected to the lock shell (1), and the first limiting block (3) protrudes from the first side wall (201) of the mounting part (2); The second limiting block (4) is movably connected to the lock shell (1). The second limiting block (4) has a locked state protruding on the second side wall (202) and an unlocked state moving away from the position protruding on the second side wall (202).

2. The screwless door lock according to claim 1, characterized in that, The first limiting block (3) is fixedly connected to the back of the flange (203) on the first sidewall (201).

3. The screwless door lock according to claim 1, characterized in that, An elastic element is connected to the second limiting block (4), and the elastic element has an elastic force that drives the second limiting block (4) to move toward the locked state.

4. The screwless door lock according to claim 1, characterized in that, The second sidewall (202) has a recess (204), and at least a portion of the second limiting block (4) is located within the recess (204).

5. The screwless door lock according to claim 1, characterized in that, The second limiting block (4) is slidably connected to the lock shell (1), and the movement trajectory of the second limiting block (4) between the locked state and the unlocked state is perpendicular to the second side wall (202).

6. The screwless door lock according to claim 1, characterized in that, The second limiting block (4) has multiple blocks spaced apart.

7. The screwless door lock according to any one of claims 1-6, characterized in that, The first limiting block (3) has a notch (301), and an unlocking component (5) is provided in the notch (301). The unlocking component (5) has an unlocking position that protrudes from the notch (301).

8. The screwless door lock according to claim 7, characterized in that, The unlocking component (5) is rotatably connected to the lock housing (1).

9. The screwless door lock according to claim 8, characterized in that, A groove (302) is formed inside the first limiting block (3).

10. The screwless door lock according to claim 8, characterized in that, The lock housing (1) includes a detachably connected upper shell (101) and a lower shell (102), the lower shell (102) having a mounting groove (103) for accommodating the unlocking member (5), and the upper shell (101) covering the opening of the mounting groove (103); the unlocking member (5) has an operating part (501) extending to the side of the lock housing (1).

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