Automatic bolt
By designing the reset shaft and reset plate in the latch, the automatic reset of the lock tongue and the automatic locking of the latch are achieved, which solves the problem of cumbersome steps in the existing latch and improves the convenience of use.
Patent Information
- Application Number
- CN202421667915.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing latches are cumbersome in the locking process and cannot meet the user's usage needs and life pursuits.
An automatic latch is designed. By setting a reset shaft and reset plate in the housing, the combination of the lock tongue and the reset part can realize the automatic reset of the lock tongue and the automatic locking of the lock tongue.
It realizes automatic reset of the lock tongue and automatic locking of the pin, simplifying the locking process and improving the convenience of use.
Smart Images
Figure CN222909728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automatic latches, in particular to an automatic latch. Background Art
[0002] The latch has always been a simple and easy-to-use locking device for bi-parting doors. After the driven leaf of the door leaf is locked by the latch, the active leaf and the driven leaf only need to be relatively fixed to complete the locking of the bi-parting door. With the advancement of technology and the improvement of living standards, in the locking work of ordinary latches on door leaves, the driven leaf needs to be locked in advance by the latch, resulting in cumbersome steps in the locking process of bi-parting doors, which cannot meet the user's use needs and life pursuits. Utility Model Content
[0003] The utility model aims to provide an automatic latch to solve the problems raised in the above-mentioned background technology, and has the advantage of automatic resetting of the latch.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic latch, comprising a shell, a latch slot is provided on one side of the shell, a lock tongue is provided in the latch slot, a reset shaft is installed in the shell and is located on one side of the lock tongue, reset plates are sleeved at both ends of the reset shaft, a first fixed shaft connected to the shell is passed through the reset plate, the reset plate rotates around the axis of the first fixed shaft, and a reset member is connected to the other end of the reset plate.
[0005] By adopting the above technical solution, the lock tongue moves toward the shell body after being squeezed, and then squeezes the reset shaft on one side of the lock tongue. The movement of the reset shaft will drive the reset plate to rotate around the direction of the first fixed axis. When there is no external force, the reset plate rotates in the opposite direction under the action of the reset member, thereby driving the reset shaft to rotate in the direction of the lock tongue, thereby allowing the lock tongue to move outward.
[0006] As a further solution of the utility model: one end of the reset plate is integrally connected to the second fixed shaft, the reset member includes a connecting plate sleeved on the second fixed shaft, the other end of the connecting plate is integrally connected to the third fixed shaft, and the connecting plate is connected to a movable rod via the third fixed shaft.
[0007] By adopting the above technical solution, in the absence of external force, the movable rod moves downward under the action of gravity, driving the third fixed shaft to move and then driving the connecting plate to move. The movement of the connecting plate drives the reset plate to rotate and then drives the first fixed shaft to move in the direction of the lock tongue, thereby resetting the lock tongue.
[0008] As a further solution of the utility model: the shell is provided with an arc-shaped groove for movement of the second fixed shaft, and one end of the second fixed shaft is located in the arc-shaped groove.
[0009] By adopting the above technical solution, the setting of the arc-shaped groove plays a role in limiting the moving trajectory of the second fixed axis.
[0010] As a further solution of the utility model: the side of the movable rod is integrally connected with an annular plate, the shell is integrally connected with a fixed plate sleeved outside the movable rod, and the movable rod is sleeved with a first spring located between the fixed plate and the annular plate.
[0011] By adopting the above technical solution, the setting of the first spring allows the movable rod to have a restoring ability, so that the reset shaft always has a tendency to move towards the direction of the lock tongue.
[0012] As a further solution of the utility model: both sides of one end of the lock tongue in the shell are integrally connected with limiting plates located on both sides of the lock tongue, and a moving shaft is arranged between the limiting plate and the shell.
[0013] By adopting the above technical solution, when the lock tongue moves in the latch groove, the lock tongue drives the limit plate to move, and the setting of the moving shaft facilitates the movement of the limit plate.
[0014] As a further solution of the utility model: the shell includes a movable plate at the bottom, and the movable plate is fixedly connected to the shell by bolts.
[0015] By adopting the above technical solution, when the direction of the lock tongue is turned, the bolt can be rotated to separate the movable plate from the shell, and then the lock tongue is taken out and rotated to a required angle, and then the movable plate and the shell are connected by bolts to achieve the purpose of turning the lock tongue.
[0016] As a further solution of the utility model: the side of the movable rod is integrally connected with an annular plate, the movable rod is sleeved with a second spring, one end of the second spring is connected to the annular plate, and the other end is connected to one side of the shell.
[0017] By adopting the above technical solution, the setting of the second spring allows the movable rod to have a restoring ability, so that the reset shaft always has a tendency to move toward the lock tongue. It is worth noting that the first spring and the second spring have the same function, but their specific setting positions are different.
[0018] As a further solution of the utility model: the movable rod is integrally connected with a connecting block outside the shell, and the connecting block is connected with the extension rod through threads.
[0019] By adopting the above technical solution, in order to increase the length of the movable rod, the extension rod and the connecting block can be connected by threads.
[0020] Compared with the prior art, the beneficial effects of the utility model are:
[0021] After being squeezed, the lock tongue moves toward the shell body and squeezes the reset shaft on one side of the lock tongue. The movement of the reset shaft will drive the reset plate to rotate around the direction of the first fixed axis. When there is no external force, the reset plate rotates in the opposite direction under the action of the reset member, thereby driving the reset shaft to rotate toward the direction of the lock tongue and allowing the lock tongue to move outward. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of Example 1;
[0023] Figure 2 This is a schematic diagram of the structure of Example 1 with one side of the housing removed;
[0024] Figure 3 This is a schematic diagram of the structure of Example 2 with one side of the housing removed;
[0025] Figure 4 This is a schematic diagram of the structure of Example 3 with one side of the housing removed;
[0026] Figure 5 This is a schematic diagram of the structure of the lock tongue in Example 1 being inserted into the housing.
[0027] In the figure: 1, housing; 2, latch slot; 3, lock tongue; 4, reset shaft; 5, reset plate; 6, first fixed shaft; 7, second fixed shaft; 8, connecting plate; 9, third fixed shaft; 10, movable rod; 11, arc groove; 12, annular plate; 13, fixed plate; 14, first spring; 15, vertical groove; 16, limit plate; 17, movable shaft; 18, movable plate; 19, second spring; 20, connecting block; 21, extension rod; 22, bolt. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In the utility model,
[0030] An automatic latch, such as Figure 1-Figure 5 As shown, it includes a shell 1, a latch slot 2 is provided on one side of the shell 1, a lock tongue 3 is provided in the latch slot 2, a reset shaft 4 is installed in the shell 1 on one side of the lock tongue 3, both ends of the reset shaft 4 are sleeved with reset plates 5, the reset plate 5 is penetrated by a first fixed shaft 6 connected to the shell 1, the reset plate 5 rotates around the axis of the first fixed shaft 6, and the other end of the reset plate 5 is connected to a reset member.
[0031] One end of the reset plate 5 is integrally connected to the second fixed shaft 7, the reset member includes a connecting plate 8 sleeved on the second fixed shaft 7, the other end of the connecting plate 8 is integrally connected to the third fixed shaft 9, and the connecting plate 8 is connected to the movable rod 10 via the third fixed shaft 9. The housing 1 is provided with a vertical slot 15 for accommodating the third fixed shaft 9.
[0032] The housing 1 is provided with an arc-shaped groove 11 for the second fixed shaft 7 to move, and one end of the second fixed shaft 7 is located in the arc-shaped groove 11 .
[0033] The two sides of one end of the locking tongue 3 in the housing 1 are integrally connected with limiting plates 16 located on both sides of the locking tongue 3 , and a moving shaft 17 is provided between the limiting plates 16 and the housing 1 .
[0034] The housing 1 includes a movable plate 18 at the bottom, and the movable plate 18 is fixedly connected to the housing 1 via bolts 22 .
[0035] Embodiment 1: The reset member includes a first spring 14, which allows the reset plate 5 to perform a reset action around the first fixed axis 6. The side of the movable rod 10 is integrally connected with an annular plate 12, the housing 1 is integrally connected with a fixed plate 13 sleeved outside the movable rod 10, and the movable rod 10 is sleeved with the first spring 14 between the fixed plate 13 and the annular plate 12.
[0036] Embodiment 2: The reset member includes a second spring 19, which allows the reset plate 5 to perform a reset action around the first fixed shaft 6. The side of the movable rod 10 is integrally connected with an annular plate 12, and the movable rod 10 is sleeved with the second spring 19, one end of the second spring 19 is connected to the annular plate 12, and the other end is connected to one side of the housing 1.
[0037] Embodiment 3: The difference from Embodiment 2 is that the movable rod 10 is integrally connected with a connecting block 20 located outside the housing 1, and the connecting block 20 is connected with an extension rod 21 through threads.
[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An automatic latch, comprising a housing (1), characterized in that: A latch slot (2) is provided on one side of the housing (1), a lock tongue (3) is provided in the latch slot (2), a reset shaft (4) is installed in the housing (1) and is located on one side of the lock tongue (3), reset plates (5) are sleeved at both ends of the reset shaft (4), a first fixed shaft (6) connected to the housing (1) is passed through the reset plate (5), the reset plate (5) rotates around the axis of the first fixed shaft (6), and the other end of the reset plate (5) is connected to a reset member.
2. The automatic latch according to claim 1, characterized in that: One end of the reset plate (5) is integrally connected to a second fixed shaft (7), the reset member comprises a connecting plate (8) sleeved on the second fixed shaft (7), the other end of the connecting plate (8) is integrally connected to a third fixed shaft (9), and the connecting plate (8) is connected to a movable rod (10) via the third fixed shaft (9).
3. The automatic latch according to claim 1, characterized in that: The housing (1) is provided with an arc-shaped groove (11) for the second fixed shaft (7) to move, and one end of the second fixed shaft (7) is located in the arc-shaped groove (11).
4. The automatic latch according to claim 2, characterized in that: The side of the movable rod (10) is integrally connected with an annular plate (12), the housing (1) is integrally connected with a fixed plate (13) sleeved outside the movable rod (10), and the movable rod (10) is sleeved with a first spring (14) located between the fixed plate (13) and the annular plate (12).
5. The automatic latch according to claim 1, characterized in that: Limiting plates (16) located on both sides of the lock tongue (3) are integrally connected to both sides of one end of the lock tongue (3) located in the housing (1), and a movable shaft (17) is provided between the limiting plate (16) and the housing (1).
6. The automatic latch according to claim 1, characterized in that: The housing (1) comprises a movable plate (18) at the bottom, and the movable plate (18) is fixedly connected to the housing (1) by bolts.
7. The automatic latch according to claim 2, characterized in that: The side of the movable rod (10) is integrally connected with an annular plate (12), and the movable rod (10) is sleeved with a second spring (19), one end of the second spring (19) is connected to the annular plate (12), and the other end is connected to one side of the shell (1).
8. The automatic latch according to claim 2, characterized in that: The movable rod (10) is integrally connected to a connecting block (20) located outside the housing (1), and the connecting block (20) is connected to an extension rod (21) via threads.