Locking device and door sill with same
By designing a locking device with a multi-step unlocking operation, the problem of children easily unlocking the safety door on their own has been solved, thus improving the safety of the safety door.
Patent Information
- Application Number
- CN202520381906.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The locks on existing security doors are easy to operate, and children can easily unlock them themselves, resulting in poor security.
Design a locking device including a first housing, a first locking tongue, a button, a first top spring, and an unlocking component, which unlocks through multiple steps, increasing the difficulty of unlocking.
This increases the difficulty for children to unlock the doors themselves, preventing the safety doors from being easily unlocked and enhancing the protective effect.
Smart Images
Figure CN223854047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gate and fence technology, and in particular to a locking device and a gate and fence having the same. Background Technology
[0002] To prevent children from wandering out of the house and causing accidents such as getting lost or getting injured, safety doors are often installed indoors. These safety doors are usually pivotally mounted on one side, allowing them to be opened or closed by swinging the door. The other side of the safety door is equipped with a lock cylinder with a latch. The door is locked by the extension and retraction of the latch and the engagement of the first lock groove.
[0003] The existing locks only require pressing a button or rotating a knob to extend or retract the first bolt, thus unlocking the door. The operation is very simple, and older children have a certain learning ability and can easily learn how to operate the locks to unlock the security door on their own. However, the security effect is not good enough. Utility Model Content
[0004] The main purpose of this invention is to provide a locking device and a door frame with the same, which aims to increase the difficulty for children to learn to unlock the door on their own, prevent the protective door from being easily unlocked, and thus improve the protective effect.
[0005] To achieve the above objectives, this utility model proposes a locking device and a door frame having the same, comprising:
[0006] First shell;
[0007] The first locking tongue is movably disposed on the first housing and can move relative to the first housing between a first position and a second position;
[0008] The button is movably located above the first lock tongue on the first housing. The button is linked and cooperates with the first lock tongue. The button can perform vertical reciprocating motion relative to the first housing and can drive the first lock tongue to move towards the second position while descending.
[0009] The first top spring is disposed in the first housing and is used to apply a spring force to the first locking tongue to move in the direction of the first position, and at the same time as the first locking tongue moves in the direction of the first position, it drives the button to move upward.
[0010] The unlocking component is movably disposed on the rear side of the first housing and can reciprocate vertically relative to the first housing so that the front end of the unlocking component is opposite to or offset from the rear wall of the first locking tongue. When opposite, it can restrict the movement of the first locking tongue in the second position direction, and when offset, it can release the restriction on the first locking tongue.
[0011] Preferably, the rear wall of the first locking tongue is provided with a insertion position for the front end of the unlocking member to be inserted, and the unlocking member can move relative to the first housing between the front end opposite to the rear wall of the first locking tongue and opposite to the insertion position.
[0012] Preferably, the interior of the first housing is divided by a partition to form a first space open on the front and a second space open on the rear. The first locking tongue and the unlocking member are respectively disposed in the first space and the second space. The partition is partially open to form a vertically extending guide groove. The front end of the unlocking member passes through the guide groove and enters the first space. The two ends of the first top spring elastically abut against the partition and the first locking tongue, respectively.
[0013] Preferably, the bottom wall of the first space is provided with a first limiting hole, and the bottom of the first locking tongue is provided with a first limiting hook that extends into the first limiting hole. The first limiting hook can move in the first limiting hole as the first locking tongue moves.
[0014] Preferably, the second space is provided with a connecting frame, and the unlocking component includes a driving block and a plug for passing through the guide groove. The driving block is movably engaged with the side of the connecting frame facing the opening of the second space, and the plug is movably engaged with the side of the connecting component facing the guide groove. A screw connects the plug and the driving block, so that the driving block moves up and down along the connecting frame while driving the plug to move to a position that is offset from or opposite to the rear wall of the first locking tongue.
[0015] Preferably, it further includes a rope, a second housing, and a second locking tongue. The second locking tongue is movably disposed in the second housing and can reciprocate vertically relative to the second housing. The upper and lower ends of the rope are respectively connected to the unlocking member and the second locking tongue. A second top spring is also provided, which is used to apply a spring force to the second locking tongue in a downward direction.
[0016] Preferably, the first housing has a third space above the first latch, and the button is movably mounted in the third space. The bottom of the button has a strip extending towards the first latch, and the first latch has a slot into which the strip can be inserted. The bottom wall of the slot is sloped. When the button moves downward, the lower end of the strip engages with the bottom wall of the slot to move the first latch towards the second position.
[0017] Preferably, a surrounding member is movably provided inside the first housing, and the slot is provided on the side wall of the surrounding member. The first locking tongue is movably fitted inside the surrounding member and can move relative to the surrounding member between a position where the front end is exposed on the front side of the surrounding member and a position where the front end is retracted into the surrounding member.
[0018] Preferably, the front and rear walls of the third space are provided with second limiting holes, and the side of the button near the second limiting hole is provided with a second limiting hook that extends into the second limiting hole. The second limiting hook can move within the second limiting hole as the button moves.
[0019] This utility model also proposes a door frame, including a locking device, wherein the locking device is the aforementioned locking device.
[0020] This utility model mainly includes a door frame and a locking device installed on the door frame. The locking device mainly includes a first housing, a first latch, a button, a first top spring, and an unlocking component. The first latch is movably mounted on the first housing and can move between a first position and a second position. The top spring applies a spring force to the first latch, causing it to move towards the first position. The button is movably located above the first latch and can perform vertical reciprocating motion. When moving downwards, it can drive the first latch towards the second position through a linkage mechanism. The unlocking component is movably located on the first housing and can move between positions opposite and offset from the rear wall of the first latch. During unlocking, the unlocking component must first be driven to a position offset from the rear wall of the first latch, and then the button is pressed to drive the first latch towards the second position (i.e., the unlocking direction) to complete the unlocking operation. Compared with traditional methods, this utility model requires multiple steps for unlocking, effectively increasing the difficulty for children to learn the unlocking operation independently, preventing the security door from being easily unlocked, and thus improving the protective effect. Attached Figure Description
[0021] Figure 1 This is a first-angle perspective view of the locking device;
[0022] Figure 2 This is a two-dimensional view of the locking device from a second angle.
[0023] Figure 3 This is a cross-sectional view of the latching mechanism;
[0024] Figure 4 This is an exploded view of the locking device;
[0025] Figure 5 This is a schematic diagram of the present invention;
[0026] Figure 6 This is a partial sectional view of the present invention. Detailed Implementation
[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0030] This utility model proposes a locking device.
[0031] In this embodiment of the utility model, such as Figures 1 to 6 As shown, the locking device includes a first housing 1, a first locking tongue 2, a button 3, a first top spring 4, and an unlocking component.
[0032] The first latch 2 is movably disposed on the first housing 1 and can move between a first position and a second position relative to the first housing 1. The button 3 is movably disposed on the first housing 1 above the first latch 2. The button 3 is linked with the first latch 2 and can perform vertical reciprocating motion relative to the first housing 1. While moving downward, the button 3 can drive the first latch 2 to move towards the second position. The first top spring 4 is disposed on the first housing 1 and is used to apply a spring force to the first latch 2 to move towards the first position. While the first latch 2 moves towards the first position, it drives the button 3 to move upward. The unlocking member is movably disposed on the rear side of the first housing 1 and can perform vertical reciprocating motion relative to the first housing 1 so that the front end of the unlocking member is opposite to or offset from the rear wall of the first latch 2. When opposite, it can restrict the first latch 2 from moving towards the second position. When offset, it can release the restriction on the first latch 2.
[0033] Specifically, the rear wall of the first locking tongue 2 is provided with a insertion position 21 for the front end of the unlocking member to be inserted. The unlocking member can move relative to the first housing 1 between the front end being opposite to the rear wall of the first locking tongue 2 and opposite to the insertion position 21.
[0034] Specifically, the interior of the first housing 1 is divided by a partition to form a first space 100 with an open front side and a second space 200 with an open rear side. The first locking tongue 2 and the unlocking member are respectively disposed in the first space 100 and the second space 200. The partition is partially open to form a vertically extending guide groove 11. The front end of the unlocking member passes through the guide groove 11 and enters the first space 100. The two ends of the first top spring 4 elastically abut against the partition and the first locking tongue 2 respectively.
[0035] Specifically, the bottom wall of the first space 100 is provided with a first limiting hole 101, and the bottom of the first locking tongue 2 is provided with a first limiting hook 22 that extends into the first limiting hole 101. The first limiting hook 22 can move in the first limiting hole 101 with the movement of the first locking tongue 2 to prevent the first locking tongue 2 from being over-displaced.
[0036] Specifically, the second space 200 is provided with a connecting frame 12, and the unlocking component includes a driving block and a plug 52 for passing through the guide groove 11. The driving block is movably engaged with the side of the connecting frame 12 facing the opening of the second space 200, and the plug 52 is movably engaged with the side of the connecting component facing the guide groove 11. A screw connects the plug 52 and the driving block, so that the driving block moves up and down along the connecting frame 12 while driving the plug 52 to a position that is offset from or opposite to the rear wall of the first locking tongue 2.
[0037] Specifically, the connecting seat is locked to the first housing 1 by means of rivets.
[0038] Specifically, in one embodiment, a spring is also provided, which is used to apply a spring force to the unlocking member to move in a downward direction, thereby realizing the automatic reset of the unlocking member.
[0039] Specifically, the connector is provided with a limiting part 13 at the position above the drive block to limit the drive block from rising excessively.
[0040] Specifically, the outer wall of the drive block is provided with a protrusion 53, which makes it easy for the finger to push the drive block.
[0041] Specifically, it also includes a rope 6, a second housing 7, and a second locking tongue 8. The second locking tongue 8 is movably disposed on the second housing 7 and can reciprocate vertically relative to the second housing 7. The upper and lower ends of the rope 6 are respectively connected to the unlocking component and the second locking tongue 8. A second top spring 9 is also provided, which is used to apply a spring force to the second locking tongue 8 in the downward direction.
[0042] Specifically, there are two second top springs 9.
[0043] Specifically, the first housing 1 has a third space 300 above the first latch 2. The button 3 is movably mounted in the third space 300. The bottom of the button 3 has an insert 31 extending towards the first latch 2. The first latch 2 has a slot 32 into which the insert 31 can be inserted. The bottom wall of the slot 32 is inclined. When the button 3 moves downward, the lower end of the insert 31 cooperates with the bottom wall of the slot 32 to drive the first latch 2 to move towards the second position.
[0044] Specifically, the first housing 1 is movably provided with a surrounding member 33, and the side wall of the surrounding member 33 is provided with the slot 32. The first locking tongue 2 is movably fitted inside the surrounding member 33 and can move relative to the surrounding member 33 between a position where the front end is exposed on the front side of the surrounding member 33 and a position where the front end is retracted into the surrounding member 33.
[0045] Specifically, the first position is inside the first lock groove, and the second position is outside the first lock groove. When the button 3 is pressed, the driving surrounding member 33 drives the first locking tongue 2 to move out of the first lock groove, and at the same time compresses the first top spring 4. When the button 3 is released, the first top spring 4 releases its elastic force, causing the first locking tongue 2 to move to the position where its front end is exposed on the front side of the surrounding member 33 and pushes the surrounding member 33 to continue moving, so that the button 3 is driven to rise through the cooperation between the bottom wall of the slot 32 and the lower end of the insert 31, thereby realizing the automatic reset of the button 3 and the surrounding member 33.
[0046] Understandably, the front end of the first locking tongue 2, exposed on the front side of the surrounding member 33, will be restricted from continuing to move, thereby allowing the surrounding member 33 to move.
[0047] Specifically, the first limiting hook 22 is located on the bottom wall of the surrounding member 33.
[0048] Specifically, the front and rear walls of the third space 300 are provided with second limiting holes 301, and the side of the button 3 near the second limiting hole 301 is provided with a second limiting hook 34 that extends into the second limiting hole 301. The second limiting hook 34 can move within the second limiting hole 301 as the button 3 moves.
[0049] This utility model also proposes a gate, including a locking device. For the specific structure of the locking device, please refer to the above embodiments. Since this gate adopts all the technical solutions of all the above-mentioned locking device embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned locking device, which will not be described in detail here.
[0050] Specifically, the door frame can directly refer to existing technology, and the first lock groove for cooperating with the first lock tongue 2 can be directly set at the installation location, such as on the wall. Of course, other implementation methods can also be adopted, such as in this embodiment:
[0051] The gate includes a first gate body 01 and a second gate body 02, and is provided with a first connecting mechanism 03 and a second connecting mechanism 04. The first gate body 01 and the second gate body 02 are movably coupled and can be displaced in overlapping and staggered directions to extend or shorten the gate to accommodate different widths of the installation position. The first connecting mechanism 03 and the second connecting mechanism 04 are mirror images of each other and can be detachably fixed to the installation position via a quick-release structure. The first and second housings are vertically spaced on one side of the gate, and the other side of the gate is pivotally connected to the second connecting mechanism 04 to allow for swinging opening or closing. The first connecting mechanism 03 has a first locking groove corresponding to the position of the first locking tongue 2, and a second locking groove corresponding to the position below the second locking tongue. When the gate swings until the first locking tongue 2 enters the first locking groove, the gate is locked, and simultaneously the second locking tongue enters the second locking groove.
[0052] Furthermore, other structural details regarding the gate can be found in existing technologies, and their specific structural principles will not be elaborated upon here.
[0053] This utility model mainly includes a door frame and a locking device installed on the door frame. The locking device mainly includes a first housing, a first latch, a button, a first top spring, and an unlocking component. The first latch is movably mounted on the first housing and can move between a first position and a second position. The top spring applies a spring force to the first latch, causing it to move towards the first position. The button is movably located above the first latch and can perform vertical reciprocating motion. When moving downwards, it can drive the first latch towards the second position through a linkage mechanism. The unlocking component is movably located on the first housing and can move between positions opposite and offset from the rear wall of the first latch. During unlocking, the unlocking component must first be driven to a position offset from the rear wall of the first latch, and then the button is pressed to drive the first latch towards the second position (i.e., the unlocking direction) to complete the unlocking operation. Compared with traditional methods, this utility model requires multiple steps for unlocking, effectively increasing the difficulty for children to learn the unlocking operation independently, preventing the security door from being easily unlocked, and thus improving the protective effect.
[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A closure device, characterized in that The utility model relates to a lock, which comprises: a first housing (1); a first lock tongue (2) movably arranged in the first housing (1) and movable between a first position and a second position relative to the first housing (1); a key (3) movably arranged above the first lock tongue (2) in the first housing (1), the key (3) being in linkage with the first lock tongue (2), and the key (3) being vertically movable relative to the first housing (1) and capable of driving the first lock tongue (2) to move towards the second position when descending; a first top spring (4) arranged in the first housing (1) for applying an elastic force to the first lock tongue (2) to move towards the first position, and the first lock tongue (2) driving the key (3) to move upwards when moving towards the first position; an unlocking member movably arranged at the rear side of the first housing (1) and vertically movable relative to the first housing (1) to make the front end of the unlocking member opposite to or away from the rear wall of the first lock tongue (2), the first lock tongue (2) being restricted from moving towards the second position when the front end of the unlocking member is opposite to the rear wall of the first lock tongue (2), and the restriction on the first lock tongue (2) being removed when the front end of the unlocking member is away from the rear wall of the first lock tongue (2).
2. The closure device of claim 1, wherein: The rear wall of the first lock tongue (2) is provided with an insertion site (21) for the front end of the unlocking member to be inserted into, and the unlocking member is movable relative to the first housing (1) between a position where the front end of the unlocking member is opposite to the rear wall of the first lock tongue (2) and a position where the front end of the unlocking member is opposite to the insertion site (21).
3. The closure device of claim 1, wherein: The inside of the first housing (1) is divided into a first space (100) with an open front side and a second space (200) with an open rear side by a partition, the first lock tongue (2) and the unlocking member are arranged in the first space (100) and the second space (200) respectively, the partition is partially open to form a vertically extending guide groove (11), the front end of the unlocking member passes through the guide groove (11) to enter the first space (100), and the two ends of the first top spring (4) are in elastic abutment with the partition and the first lock tongue (2) respectively.
4. The closure device of claim 3, wherein: The bottom wall of the first space (100) is provided with a first limiting hole (101), the bottom of the first lock tongue (2) is provided with a first limiting hook (22) extending into the first limiting hole (101), and the first limiting hook (22) is movable in the first limiting hole (101) along with the movement of the first lock tongue (2).
5. The closure device of claim 3, wherein: The second space (200) is provided with a connecting frame (12), the unlocking member comprises a driving block and an insertion member (52) for passing through the guide groove (11), the driving block is movably arranged on the side of the connecting frame (12) facing the opening of the second space (200), the insertion member (52) is movably arranged on the side of the connecting member facing the guide groove (11), and a screw is used to screw the insertion member (52) and the driving block to make the driving block move up and down along the connecting frame (12) while driving the insertion member (52) to move to a position where the insertion member (52) is away from or opposite to the rear wall of the first lock tongue (2).
6. The closure device of claim 1, wherein: It also includes a rope (6), a second housing (7), and a second lock tongue (8) movably arranged in the second housing (7) and vertically reciprocating relative to the second housing (7), upper and lower ends of the rope (6) being connected with the unlocking member and the second lock tongue (8) respectively, and a second top spring (9) arranged for applying a spring force to the second lock tongue (8) in a downward direction.
7. The closure device of claim 1, wherein: The first housing (1) is provided with a third space (300) above the first lock tongue (2), the key (3) is movably arranged in the third space (300), the key (3) is provided with an insertion strip (31) extending towards the first lock tongue (2) at the bottom, the first lock tongue (2) is provided with an insertion slot (32) for the insertion strip (31) to extend into, the bottom wall of the insertion slot (32) is inclined, and the key (3) is driven to move towards the second position by the cooperation between the lower end of the insertion strip (31) and the bottom wall of the insertion slot (32) when the key (3) moves downward.
8. The closure device of claim 7, wherein: The first housing (1) is movably provided with a surrounding member (33) inside, the side wall of the surrounding member (33) is provided with the insertion slot (32), the first lock tongue (2) is movably arranged in the surrounding member (33), and the front end of the first lock tongue (2) is exposed to the front side of the surrounding member (33) or withdrawn into the surrounding member (33) relative to the surrounding member (33).
9. The closure device of claim 8, wherein: The front wall and the rear wall of the third space (300) are provided with second limiting holes (301), one side of the key (3) close to the second limiting holes (301) is provided with second limiting hooks (34) extending into the second limiting holes (301), and the second limiting hooks (34) can move in the second limiting holes (301) with the movement of the key (3).
10. A door guard characterized by: The locking device as claimed in any one of claims 1 to 9.