A lock guard and a lock having the same

Abstract

This invention discloses a lock stop plate applied to locks with hook-type steel bolts, comprising: a fixed stop plate; and a movable stop plate located on one side of the fixed stop plate. The upper end of the movable stop plate is rotatably connected to the fixed stop plate, and the lower middle part of the movable stop plate is bent outward to form a stop portion. When the lock is locked, the stop portion, under the pushing force of the hook-type steel bolt, causes the movable stop plate to rotate away from the fixed stop plate, thereby achieving locking. When the lock self-resets and locks, the stop portion blocks the hook-type steel bolt, achieving an unlocking and retaining function. In this invention, when the lock is locked, the hook-type steel bolt pushes the movable stop plate to rotate away from the fixed stop plate, and the hook-type steel bolt hooks onto the fixed stop plate, achieving locking. When unlocking, the hook-type steel bolt leaves the fixed stop plate, the movable stop plate is no longer subjected to pushing force, and resets. When the lock self-resets, the stop portion blocks the hook-type steel bolt, limiting the self-reset locking of the lock. A lock is also disclosed.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and more particularly to a lock baffle and a lock having the lock baffle. Background Technology

[0002] Currently, each unit of the platform screen door (fixed door panel / sliding door panel / emergency door panel) is equipped with locking points. Locking is achieved through the cooperation of a lock with a hook-type steel bolt and a baffle. Specifically, a baffle is fixed on one side of the platform screen door lintel, and a lock is fixed on one side of the movable panel. The lock is operated by key to rotate the steel bolt, causing the steel bolt to hook onto the baffle and restrict its lateral movement, thus locking. When unlocking is needed, the lock cylinder is turned with the key, causing the steel bolt to rotate a certain angle. The steel bolt and the baffle then disengage, no longer restricting the lateral movement of the steel bolt, thus unlocking. For safety and ease of use, the lock is usually designed with a self-resetting locking function. That is, when the lock cylinder is turned without a key, the rotated steel bolt can return to its original state under the action of the lock cylinder spring force.

[0003] However, due to the relatively long length of the movable panels in platform screen doors, each unit usually has at least two locking points. When opening, it often requires two people to simultaneously unlock both locking points to open the movable panel. When operating alone, improper operation is often required after unlocking one locking point to restrict the lock's self-resetting. For example, after unlocking one locking point, the movable panel is pulled outward to slightly deform it, causing the movable panel at the unlocked locking point to separate from the lintel by a greater distance. If necessary, hard objects are inserted to keep the movable panel slightly open to prevent the lock from automatically locking. Then, the other locking point is unlocked to open the movable panel. The above operation is cumbersome and can easily damage the lock, affecting its service life. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lock baffle that can not only lock but also limit the self-reset of the lock after unlocking, thereby maintaining the unlocking function, and a lock having the lock baffle.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, a lock baffle is disclosed, applicable to a lock having a hook-type steel bolt, the lock baffle comprising:

[0006] A fixed baffle is used for hooking the lock's pull-type steel bolt.

[0007] A movable baffle is located on one side of the fixed baffle. The upper end of the movable baffle is rotatably connected to the fixed baffle, and the lower middle part of the movable baffle is bent outward to form a stop, which cooperates with the hook-type steel bolt. When the lock is locked, the stop causes the movable baffle to rotate away from the fixed baffle under the pushing force of the hook-type steel bolt, without affecting the locking function. When the lock self-resets and locks, the stop of the movable baffle that has been reset blocks the hook-type steel bolt to restrict its locking and achieve the unlocking retention function.

[0008] A further technical solution is that the bending angle of the baffle from the lower middle part of the movable baffle is 25° to 45°.

[0009] A further technical solution is as follows: the upper end of the movable baffle is connected to the fixed baffle via a rotating shaft, and the movable baffle can rotate around the rotating shaft.

[0010] The further technical solution is as follows: the lock baffle also includes a reset torsion spring, the reset torsion spring is sleeved on the rotating shaft, and one end of the reset torsion spring is connected to the fixed baffle, and the other end is connected to the upper end of the movable baffle.

[0011] The further technical solution is as follows: a first elongated hole is provided on the fixed baffle above the rotating shaft, and a second elongated hole is provided on the movable baffle next to the rotating shaft. One end of the reset torsion spring passes through the first elongated hole and the other end passes through the second elongated hole.

[0012] A further technical solution is as follows: the lock baffle also includes a limiting rod, which is located on the fixed baffle and above the rotating shaft.

[0013] The further technical solution is as follows: the fixed baffle includes a third mounting plate and a fourth mounting plate formed by bending outward from the upper end of one side of the third mounting plate. The upper end of the movable baffle is rotatably connected to the fourth mounting plate. The lower middle part of the third mounting plate on this side is used for the hook-type steel bolt of the lock to be hooked when the lock is locked.

[0014] A further technical solution is as follows: the lower end of the third mounting plate extends outward to form an outer edge, and the outer edge and the fourth mounting plate are located on the same side of the third mounting plate.

[0015] A further technical solution is as follows: the movable baffle includes a first mounting plate and a movable plate extending downward from one side of the first mounting plate. The first mounting plate is rotatably connected to the fourth mounting plate. The movable plate is located on one side of the third mounting plate, and the baffle is formed by bending outward from the inside of the movable plate.

[0016] To solve the above-mentioned technical problems, according to another aspect of the present invention, a lock is disclosed, including a lock body and the aforementioned lock baffle. The lock body includes a housing, a lock cylinder drive mechanism located within the housing, an elastic element, and a hook-type steel bolt connected to the lock cylinder drive mechanism. The lock cylinder drive mechanism locks under the action of an unlocking key, causing the hook-type steel bolt to rotate. When locking, it pushes open a movable baffle located on one side of the fixed baffle and hooks onto the fixed baffle of the lock baffle to achieve locking or disengagement from the fixed baffle to achieve unlocking. The hook-type steel bolt is connected to the elastic element so that when unlocking is performed without an unlocking key, it can be reset and locked again by resetting the elastic element. With the cooperation of the movable baffle, before resetting and locking, the stop portion of the movable baffle blocks the hook-type steel bolt to achieve unlocking retention.

[0017] The beneficial technical effects of this invention are as follows: Compared with the prior art, the lock baffle of this invention includes a fixed baffle for hooking a hook-type steel bolt of the lock and a movable baffle located on one side of the fixed baffle. The upper end of the movable baffle is rotatably connected to the fixed baffle, and the lower part is bent outward to form a stop portion that cooperates with the hook-type steel bolt. When the lock baffle is applied to a lock with a hook-type steel bolt and the lock is locked, the stop portion is pushed by the hook-type steel bolt to move away from the fixed baffle, without affecting the locking function. The hook-type steel bolt is blocked by the fixed baffle and continues to rotate until the hook-type steel bolt is hooked onto the fixed baffle, thus achieving locking. When the key is turned to unlock, the hook-type steel bolt rotates in the opposite direction and moves away from the fixed baffle. The hook-type steel bolt no longer abuts against the movable baffle, and the movable baffle is no longer subjected to pushing force. It returns to the side of the fixed baffle. When the lock self-resets, the baffle blocks the hook-type steel bolt, restricting the lock's self-reset locking and realizing the unlocking retention function. It can be seen that the lock baffle of the present invention can be applied to the field of doors, windows, boxes and cabinets. It can be used as a normal locking baffle in conjunction with the lock. At the same time, it also provides an unlocking retention function. On the movable panel of the platform door with multiple locking points, multiple people do not need to operate to unlock at the same time. They can be unlocked sequentially, and a single person can open the movable panel, reducing the number of operators required. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the lock baffle of the present invention;

[0019] Figure 2 yes Figure 1 A right-side view of the lock baffle shown;

[0020] Figure 3 yes Figure 1 A front view of the lock baffle shown;

[0021] Figure 4 yes Figure 1 A top view of the lock baffle shown;

[0022] Figure 5 This is a schematic diagram of the lock baffle in the locked state during use according to the first embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the locking state of the lock baffle and the hook-type steel bolt in the first embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of another state of the lock baffle and hook-type steel bolt cooperation shown in the first embodiment of the present invention;

[0025] Figure 8 yes Figure 7 A top view of the lock baffle and hook-type steel bolt shown;

[0026] Figure 9 This is a schematic diagram of the structure of the second embodiment of the lock baffle of the present invention;

[0027] Figure 10 yes Figure 9 A right-side view of the lock baffle shown;

[0028] Figure 11 yes Figure 9 A front view of the lock baffle shown;

[0029] Figure 12 yes Figure 9 The diagram shows a top view of the lock baffle. Detailed Implementation

[0030] To better understand the technical content of this invention, the technical solution of this invention will be further introduced and explained below with reference to the schematic diagram, but it is not limited thereto.

[0031] The lock baffle in this invention is applicable to many technical fields. For example, it can be used on the movable panel of a platform door to lock and unlock the movable panel, or it can be used in scenarios such as doors, windows, boxes, and cabinets where locking of movable parts is required. Its scope of application is not limited.

[0032] Reference Figures 1 to 8 , Figures 1 to 8A first embodiment of the lock baffle 100 of the present invention is shown. The lock baffle 100 of the present invention is applied to a lock having a hook-type steel bolt 200 to cooperate with the hook-type steel bolt 200 to achieve locking and unlocking retention, and the lock has a self-resetting function. In the embodiment shown in the accompanying drawings, the lock baffle 100 includes a fixed baffle 10 and a movable baffle 20. The fixed baffle 10 is used for the hook-type steel bolt 200 of the lock to hook onto. The movable baffle 20 is located on one side of the fixed baffle 10. The upper end of the movable baffle 20 is rotatably connected to the fixed baffle 10, and the lower middle part of the movable baffle 20 is bent outward to form a stop 21 to cooperate with the hook-type steel bolt 200. When the lock is locked, the stop 21 causes the movable baffle 20 to rotate away from the fixed baffle 10 under the pushing force of the hook-type steel bolt 200, and resets after the lock is unlocked. When the lock is in the self-resetting locked state, it blocks the hook-type steel bolt 200. Based on the above design, when the lock baffle 100 is applied to a lock with a hook-type steel bolt 200 and the lock is locked, the hook-type steel bolt 200 pushes the stop 21 to move away from the fixed baffle 10, thereby causing the movable baffle 20 to rotate away from the fixed baffle 10. The movable baffle 20 moves away from the fixed baffle 10, thus causing the hook-type steel bolt 200 to hook onto the fixed baffle 10, achieving locking. When unlocking with a key, the hook-type steel bolt 200 rotates in the opposite direction, leaving the fixed baffle 10. The hook-type steel bolt 200 no longer abuts against the movable baffle 20, and the movable baffle 20 is no longer subjected to pushing force, returning to the side of the fixed baffle 10. When the lock self-resets, the stop 21 blocks the hook-type steel bolt 200, restricting the lock's self-reset locking and achieving the function of maintaining unlocking.

[0033] In some embodiments, the upper end of the movable baffle 20 is connected to the fixed baffle 10 via a rotating shaft 30, and the movable baffle 20 can rotate around the rotating shaft 30. Based on this design, the movable baffle 20 can rotate around the rotating shaft 30 under the action of the hook-type steel bolt 200, moving away from the fixed baffle 10, or it can rotate in the opposite direction around the rotating shaft 30 under the action of gravity, returning to its initial position, that is, returning to the side of the fixed baffle 10.

[0034] Continue to refer to Figures 1 to 4In some embodiments, the fixed baffle 10 includes a third mounting plate 12 and a fourth mounting plate 13 formed by bending outward from the inner upper end of the third mounting plate 12. The upper end of the movable baffle 20 is rotatably connected to the fourth mounting plate 13 via the rotating shaft 30. The lower middle part of the third mounting plate 12 on this side is used for the hook bolt 200 of the lock to hook when the lock is locked. Further, in this embodiment, the lower end of the third mounting plate 12 extends outward to form an outer edge 11. The outer edge 11 and the fourth mounting plate 13 are located on the same side of the third mounting plate 12, and a mounting hole 14 is provided on the outer edge 11 below the third mounting plate 12 to fix the lock baffle 100 to the platform lintel or other fixed frame through the mounting hole 14 and screws. Based on the above design, the outer edge 11 can limit the rotation angle of the movable baffle 20.

[0035] In some embodiments, the movable baffle 20 includes a first mounting plate 22 and a movable plate 23 extending downward from one side of the first mounting plate 22. The first mounting plate 22 is rotatably connected to the fourth mounting plate 13. The movable plate 23 is located on one side of the third mounting plate 12, and the baffle 21 is formed by bending outward from the inner side of the movable plate 23. Preferably, in this embodiment, the bending angle α of the baffle 21 bending outward from the inner side of the movable plate 23 is 25° to 45°. Based on the above design, the baffle 21 is inclined outward relative to the movable plate 23, and the bending angle is set to 25° to 45°. This does not affect the normal opening of the movable panel, and when the lock self-resets and blocks the hook bolt 200, it can prevent the movable baffle 20 from rotating due to vibration or other accidents, thereby disengaging from the hook bolt 200 and causing the lock to reset.

[0036] Furthermore, in this embodiment, the lock baffle 100 also includes a limiting rod 40, which is located on the fixed baffle 10 and above the rotating shaft 30. Based on the design of the limiting rod 40, the rotation angle of the movable baffle 20 can also be limited.

[0037] Understandably, if the hook-type steel bolt 200 has a slot 201, when the lock baffle 100 of the present invention is used in conjunction with a lock having the hook-type steel bolt 200, the initial state is that the movable panel is closed. At this time, the states of the hook-type steel bolt 200 and the lock baffle 100 are as follows: Figure 6As shown, the hook-type steel bolt 200 of the lock is hooked onto the fixed baffle 10 in the lock baffle 100, and the slot 201 is engaged with the third mounting plate 12 of the fixed baffle 10. The movable plate 23 of the movable baffle 20 is away from the third mounting plate 12. When it is necessary to open the movable panel, the key is used to turn the lock cylinder to drive the hook-type steel bolt 200 to rotate, and the slot 201 of the hook-type steel bolt 200 disengages from the third mounting plate 12, thereby unlocking. At this time, the movable plate 23 of the movable baffle 20 resets under the action of gravity and returns to the side of the third mounting plate 12. When the key is pulled out, the stop 21 can block the hook-type steel bolt 200 when the lock resets (e.g., Figure 7 and Figure 8 As shown, the slot 201 of the hook-type steel bolt 200 is restricted from entering the fixed baffle 10 and remains in this state, thereby achieving unlocking retention. When another locking point is also unlocked and in the unlocking retention state, the user can push the movable panel, and the hook-type steel bolt 200 moves with the movable panel, separating from the baffle 21, thereby opening the movable panel; when it is necessary to close the lock, the movable panel returns to its original position, and the hook-type steel bolt 200 pushes the baffle 21 to move away from the fixed baffle 10, thereby driving the first locking... Mounting plate 22 rotates around rotating shaft 30, moving away from fixed baffle 10, so that movable plate 23 moves away from fixed baffle 10, allowing the third mounting plate 12 of fixed baffle 10 to be released. The slot 201 of hook bolt 200 is engaged on the third mounting plate 12. That is, during the process of hook bolt 200 pushing movable baffle 20 to move, movable baffle 20 and hook bolt 200 remain in contact. Movable baffle 20 is always located outside or above hook bolt 200 and cannot be reset, thereby achieving locking.

[0038] Reference Figures 9 to 11 , Figures 9 to 11A second embodiment of the lock baffle 100 of the present invention is shown. This embodiment differs from the first embodiment in that a return torsion spring 50 is added, and a limiting rod is not provided; the remaining structures are the same or similar. In this embodiment, the lock baffle 100 further includes a return torsion spring 50, which is sleeved on the rotating shaft 30. One end of the return torsion spring 50 is connected to the fixed baffle 10, and the other end is connected to the upper end of the movable baffle 20. Based on the above design, when the lock baffle 100 is applied to a lock with a hook-type steel bolt 200, and the lock is in a rotating locked state, the hook-type steel bolt 200 rotates. During this process, it pushes the stop 21 to move away from the fixed baffle 10, thereby causing the movable baffle 20 to rotate away from the fixed baffle 10. The movable baffle 20 moves away from the fixed baffle 10, thus causing the hook-type steel bolt 200 to hook onto the fixed baffle 10, achieving locking. During this process, the return torsion spring 50 twists. It can be understood that during the twisting of the return torsion spring 50... Due to the limitation of rotation, the limiting rod 40 can be omitted in this embodiment. When unlocking with the key, the hook bolt 200 rotates in the opposite direction and moves away from the fixed baffle 10. The hook bolt 200 no longer abuts against the movable baffle 20, the reset torsion spring 50 returns to its original position, and the movable baffle 20 resets under the action of the reset torsion spring 50, returning to the side of the fixed baffle 100. In this embodiment, when the lock self-resets, the stop 21 on the movable baffle 20 can block the hook bolt 200, limiting the lock's self-reset locking, thereby maintaining the unlocking function.

[0039] Specifically, such as Figure 9 and Figure 10 As shown, in this embodiment, the fourth mounting plate 13 of the fixed baffle 10 has a first elongated hole 131 located obliquely above the rotating shaft 30, and the first mounting plate 22 of the movable baffle 20 has a second elongated hole 221 located beside the rotating shaft 30. One end of the reset torsion spring 50 passes through the first elongated hole 131, and the other end passes through the second elongated hole 221.

[0040] In summary, the lock baffle 100 of this invention can achieve normal locking when used in conjunction with the lock, and can prevent the lock from self-resetting and locking after unlocking with a key, which is an unlock-holding function. This is a beneficial extension to the baffle with only locking function. Moreover, the lock baffle 100 of this invention adopts a modular design and can be used as a whole. It can achieve the function addition by simply replacing the baffle with only locking function using the existing installation interface, without the need to modify the fixed frame or other structures on the lock. Furthermore, since the lock baffle 100 of this invention has an unlock-holding function, it can be unlocked sequentially on the movable panel of the platform door with multiple locking points. A single person can open the movable panel, reducing the number of operators required.

[0041] Understandably, the present invention can also provide a lock, which includes a lock body and a lock baffle 100 as described in the first / second embodiment above. The lock body includes a housing, a lock cylinder drive mechanism located within the housing, an elastic element, and a hook-type steel bolt 200 connected to the lock cylinder drive mechanism. The lock cylinder drive mechanism operates under the action of an unlocking key to rotate the hook-type steel bolt 200, hooking it onto the fixed baffle 10 of the lock baffle 100 to achieve locking or disengaging from the fixed baffle 10 to achieve unlocking. The hook-type steel bolt 200 is connected to the elastic element so that, after unlocking, when there is no unlocking key, the elastic element resets to achieve relocking. During relocking, the stop portion 21 of the movable baffle 20 blocks the hook-type steel bolt 200. It is understood that the lock with the lock baffle 100 of the present invention can not only achieve locking and close the movable panel, but also prevent the lock from self-resetting and locking when unlocking with a key, thus maintaining the unlocking function.

[0042] The above preferred embodiments should be regarded as illustrative examples of the implementation of the present invention. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present invention should be considered within the scope of protection of this patent.

Claims

1. A lock stop plate, applied to a lock with a hook-type steel bolt, characterized in that, It includes a fixed baffle and a movable baffle; wherein, The fixed baffle includes a third mounting plate and a fourth mounting plate formed by bending outward from the upper end of one side of the third mounting plate. The upper end of the movable baffle is rotatably connected to the fourth mounting plate. The lower middle part of the third mounting plate on this side is used for the hook-type steel bolt of the lock to be hooked when the lock is locked. The movable baffle is located on one side of the fixed baffle. The movable baffle includes a first mounting plate and a movable plate extending downward from one side of the first mounting plate. The first mounting plate is rotatably connected to the fourth mounting plate. The movable plate is located on one side of the third mounting plate, and the inner side of the movable plate is bent outward to form a stop portion to cooperate with the hook-type steel bolt. When the lock is locked, the stop portion causes the movable baffle to rotate away from the fixed baffle under the pushing force of the hook-type steel bolt until the hook-type steel bolt hooks onto the lower middle part of the third mounting plate, thereby achieving locking. When the lock self-resets and locks, the stop portion blocks the hook-type steel bolt, preventing the hook-type steel bolt from hooking onto the fixed baffle.

2. The lock baffle as described in claim 1, characterized in that, The bending angle of the stop portion from the lower middle part of the movable baffle outward is 25°~45°.

3. The lock baffle as described in claim 1, characterized in that, The upper end of the movable baffle is connected to the fixed baffle via a rotating shaft, and the movable baffle can rotate around the rotating shaft.

4. The lock baffle as described in claim 3, characterized in that, The lock baffle also includes a reset torsion spring, which is sleeved on the rotating shaft, with one end of the reset torsion spring connected to the fixed baffle and the other end connected to the upper end of the movable baffle.

5. The lock baffle as described in claim 4, characterized in that, The fixed baffle has a first elongated hole above the rotating shaft, and the movable baffle has a second elongated hole next to the rotating shaft. One end of the reset torsion spring passes through the first elongated hole, and the other end passes through the second elongated hole.

6. The lock baffle as described in claim 3, characterized in that, The lock baffle also includes a limiting rod, which is located on the fixed baffle and above the rotating shaft.

7. The lock baffle as described in claim 1, characterized in that, The lower end of the third mounting plate extends outward to form an outer edge, and the outer edge is located on the same side of the third mounting plate as the fourth mounting plate.

8. A lock, characterized in that, The lock includes a lock body and a lock baffle as described in any one of claims 1-7. The lock body includes a housing, a lock cylinder drive mechanism located within the housing, an elastic element, and a hook-type steel bolt connected to the lock cylinder drive mechanism. The lock cylinder drive mechanism operates under the action of an unlocking key to rotate the hook-type steel bolt, push open a movable baffle located on one side of the fixed baffle, and hook onto the fixed baffle of the lock baffle to achieve locking or disengage from the fixed baffle to achieve unlocking. The hook-type steel bolt is connected to the elastic element so that when there is no unlocking key after unlocking, the elastic element resets to achieve relocking. When relocking, the stop portion of the movable baffle blocks the hook-type steel bolt.

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