Manual safety door lock unlocking device and safety door lock

Abstract

The utility model relates to the technical field of safety door locks, in particular to a manual safety door lock unlocking device and a safety door lock, which comprise a stopper, a lock hook and a stopper seat, and the stopper is fixed on the front surface of the stopper seat; a lock hook is rotatably arranged in front of the base; the gear is rotatably arranged behind the base, and the gear is fixed with the handle part of the lock hook through a shaft body; the first guide block is arranged behind the base, the toothed bar movably penetrates through the first guide block, the toothed bar is meshed with the gear, an unlocking rod is arranged on the toothed bar, and an unlocking groove is formed in the base; and the locking mechanism is used for selectively and relatively fixing the toothed bar and the base. The relative fixing state between the toothed bar and the base is relieved through the locking mechanism, then the unlocking rod moves downwards to drive the toothed bar to drive the gear to rotate, and therefore the handle portion of the lock hook rotates on the front face of the base around the axis of the gear, and the lock hook is gradually disengaged from the clamping state of the lock catch. And the probability of misoperation is effectively reduced in the whole unlocking process.

Description

Technical Field

[0001] The utility model relates to the technical field of safety door locks, in particular to a manual safety door lock unlocking device and a safety door lock. Background Art

[0002] The subway security door, also widely known as the "platform screen door" or "platform door", is a special door installed between the subway waiting hall and the platform track. The main function of these doors is to isolate the waiting hall from the track area to ensure the safety of passengers while waiting.

[0003] At present, most security doors generally rely on the system for automatic control when they are powered on. However, in the face of emergencies such as system failure or power outage, these security doors are basically difficult to unlock automatically. In order to ensure that the security doors can be opened safely under any circumstances, subway stations are usually equipped with manual security door lock unlocking devices.

[0004] However, most of the existing manual security door lock unlocking devices are relatively simple in design to facilitate users to unlock. Usually, unlocking can be achieved by simply moving or pulling the lock hook. Although this unlocking method is fast, it also increases the probability of user misoperation and poses certain safety hazards. Therefore, the utility model aims to provide a manual security door lock unlocking device and a security door lock that can reduce the probability of misoperation. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a manual safety door lock unlocking device and a safety door lock, which can reduce the probability of users misoperating the unlocking device, so as to solve the problem that the manual safety door lock unlocking device in the prior art is prone to misoperation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a manual safety door lock unlocking device, including a lock block and a lock hook, and also includes a block seat, with the lock block fixed in the front; a base, with the lock hook rotatably provided in the front, and the height of the lock hook corresponds to the lock block; a gear, rotatably arranged at the back of the base, and the gear is fixed to the handle of the lock hook through an axis; a guide block, which is arranged at the back of the base and is movably penetrated by a gear rod, the gear rod and the gear are meshed with each other, an unlocking rod is provided on the gear rod, and an unlocking groove suitable for the sliding of the unlocking rod is opened on the base along its height direction; and a locking mechanism, which is arranged between the gear rod and the base, and can optionally fix the gear rod and the base relatively to each other to limit or allow the gear rod to move along the height direction of the base.

[0007] Optionally, the locking mechanism includes a locking disk, a locking block, a locking column and a locking plug-in portion; the locking block is arranged at the top end of the locking column, and the locking plug-in portion is arranged at the bottom end of the locking column; the locking disk is provided with a locking groove suitable for the locking column to be movably inserted, and the peripheral side wall of the locking disk is provided with a rotating groove suitable for the locking column to rotate 180 degrees, the rotating groove is connected with the locking groove, and the top of the locking disk is provided with a locking opening connected with the rotating groove and suitable for the locking block to be movably inserted; the bottom end of the locking column movably passes through the base, and the gear rod is provided with an insertion port suitable for the locking plug-in portion to be movably inserted.

[0008] Optionally, the locking plug portion and the plug interface are suitable for being adsorbed to each other.

[0009] Optionally, two guide blocks 2 are disposed opposite to each other at the rear of the base, and the distance between the two guide blocks 2 is suitable for the bottom of the gear rod to be movably inserted.

[0010] Optionally, a guide groove is provided on the gear rod along its length direction, a stabilizing block is slidably provided in the guide groove, and the stabilizing block is relatively fixed to one of the guide blocks 2.

[0011] The utility model also provides a safety door lock, on which the manual safety door lock unlocking device is arranged.

[0012] Compared with the prior art, the utility model provides a manual safety door lock unlocking device and a safety door lock, which have the following beneficial effects:

[0013] The utility model releases the relative fixed state between the gear rod and the base through the locking mechanism, and then moves the unlocking rod downward to drive the gear rod to drive the gear to rotate, so that the handle of the lock hook rotates around the axis of the gear on the front of the base, so that the lock hook gradually breaks away from the engagement state with the lock block, so that the external automatic opening and closing device drives the lock block and the base to move in translation. The entire unlocking process effectively reduces the probability of misoperation;

[0014] The utility model arranges the locking plug part to be mutually adsorbed with the plug interface. When the locking plug part is inserted into the plug interface, the magnetic force between the two will adsorb the locking plug part in the plug interface, thereby forming a stable connection, thereby improving the stability of the locking plug part in the plug interface;

[0015] The utility model provides two guide blocks 2. When the gear rod is inserted between the two guide blocks 2, its side surface will be in close contact with the surface of the guide block 2 to form a stable guiding structure. In this way, even under the action of external force, the gear rod can maintain the accuracy of its moving direction, avoiding the movement deviation of the gear rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown;

[0017] Figure 2 The three-dimensional structure schematic diagram of the utility model after the base is removed is shown;

[0018] Figure 3 A three-dimensional structural schematic diagram of another axial side of the utility model is shown;

[0019] Figure 4 A three-dimensional structural schematic diagram of the locking mechanism is shown;

[0020] Figure 5 A schematic diagram of the three-dimensional split structure of the locking mechanism is shown;

[0021] Figure 6 A three-dimensional structural schematic diagram of the locking mechanism, the gear rod, and the guide block 2 is shown.

[0022] In the figure: 1. block seat; 2. base; 3. lock block; 4. lock hook; 5. gear; 6. gear rod; 7. shaft; 8. guide block 1; 9. guide block 2; 10. unlocking lever; 11. unlocking slot; 12. locking mechanism; 13. locking disk; 14. locking block; 15. locking column; 16. locking plug-in part; 17. locking slot; 18. rotating slot; 19. locking mouth; 20. plug-in interface; 21. guide slot; 22. stabilizing block. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figures 1 to 6According to an embodiment of the utility model, a technical solution is provided: a manual safety door lock unlocking device, including a lock block 3 and a lock hook 4, and also includes a block seat 1, with a lock block 3 fixed in front; a base 2, with a lock hook 4 rotatably provided in the front, and the height of the lock hook 4 corresponds to the lock block 3; a gear 5, rotatably arranged at the back of the base 2, and the gear 5 is fixed to the handle of the lock hook 4 through an axle 7; a guide block 8, which is arranged at the back of the base 2 and is movably penetrated by a gear rod 6, the gear rod 6 and the gear 5 are meshed, an unlocking rod 10 is provided on the gear rod 6, and an unlocking groove 11 suitable for the sliding of the unlocking rod 10 is opened on the base 2 along its height direction; and a locking mechanism 12, which is arranged between the gear rod 6 and the base 2, and can optionally fix the gear rod 6 and the base 2 relatively to limit or allow the gear rod 6 to move along the height direction of the base 2.

[0025] With the manual safety door lock unlocking device of the above structure, when the user needs to perform the unlocking operation, first, the relative fixed state between the gear rod 6 and the base 2 is released by the locking mechanism 12, and then the unlocking rod 10 is moved to apply a downward force along the direction of the unlocking groove 11, and the force will be transmitted to the gear rod 6 to drive the gear rod 6 to drive the gear 5 to rotate. During the rotation of the gear 5, it will drive the handle of the lock hook 4 to rotate through the shaft body 7, so that the handle of the lock hook 4 rotates around the axis of the gear 5 on the front of the base 2, so that the lock hook 4 gradually disengages from the engagement state with the lock block 3. When the lock hook 4 completely disengages from the lock block 3, the block seat 1 and the base 2 are in an unlocked state, so that the external automatic opening and closing device drives the lock block 3 and the base 2 to perform translational movement. The entire unlocking process effectively reduces the probability of misoperation.

[0026] In order to selectively fix the gear rod 6 to the base 2, in this embodiment, the locking mechanism 12 includes a locking disk 13, a locking block 14, a locking column 15 and a locking plug-in portion 16; the locking block 14 is arranged at the top of the locking column 15, and the locking plug-in portion 16 is arranged at the bottom of the locking column 15; the locking disk 13 is provided with a locking groove 17 suitable for the locking column 15 to be movably inserted, and the peripheral side wall of the locking disk 13 is provided with a rotating groove 18 suitable for the locking column 15 to rotate 180 degrees, and the rotating groove 18 is connected to the locking groove 17, and the top of the locking disk 13 is provided with a rotating groove 18 that is connected to the rotating groove 18 and suitable for the locking block 14 to be movably inserted. The bottom end of the locking column 15 movably penetrates the base 2, and the gear rod 6 is provided with an insertion port 20 suitable for the movably inserted locking plug-in portion 16; when the user needs to release the relative fixed state between the gear rod 6 and the base 2, first, rotate the locking block 14 so that it rotates 180 degrees in the rotation groove 18 until the locking block 14 is aligned with the locking port 19, and then, take the locking block 14 out of the locking port 19 to drive the locking column 15 to be removed from the locking groove 17, thereby driving the locking plug-in portion 16 to disengage from the insertion port 20, thereby releasing the relative fixed state between the gear rod 6 and the base 2.

[0027] In order to improve the stability of the locking plug-in portion 16 in the plug-in port 20, in the present embodiment, the locking plug-in portion 16 and the plug-in port 20 are suitable for being adsorbed to each other; when the locking plug-in portion 16 is inserted into the plug-in port 20, the magnetic force therebetween will adsorb the locking plug-in portion 16 in the plug-in port 20, thereby forming a stable connection, thereby improving the stability of the locking plug-in portion 16 in the plug-in port 20.

[0028] In order to improve the stability of the gear rod 6 during movement, in the present embodiment, two guide blocks 29 are provided opposite to each other at the rear of the base 2, and the spacing between the two guide blocks 29 is suitable for the bottom of the gear rod 6 to be inserted movably; when the gear rod 6 is inserted between the two guide blocks 29, its side surface will be in close contact with the surface of the guide block 29 to form a stable guiding structure, so that even under the action of external force, the gear rod 6 can maintain the accuracy of its moving direction, thereby avoiding the movement deviation of the gear rod 6.

[0029] In order to further improve the stability of the gear rod 6 during movement, in the present embodiment, a guide groove 21 is provided on the gear rod 6 along its length direction, and a stabilizing block 22 is slidably provided in the guide groove 21, and the stabilizing block 22 is relatively fixed to one of the guide blocks 29; when the gear rod 6 moves, the stabilizing block 22 located on the gear rod 6 will slide smoothly in the guide groove 21 along its length direction, thereby further reducing the deviation and shaking of the gear rod 6 during movement.

[0030] Working principle: When the user needs to perform an unlocking operation, first, rotate the locking block 14 to rotate it 180 degrees in the rotating groove 18 until the locking block 14 is aligned with the locking opening 19, then take the locking block 14 out of the locking opening 19 to drive the locking column 15 to be removed from the locking groove 17, thereby driving the locking plug-in portion 16 to disengage from the plug-in port 20, thereby releasing the relative fixed state between the gear rod 6 and the base 2, then move the unlocking rod 10 to apply force along the direction of the unlocking groove 11. A downward force will be transmitted to the gear rod 6 to drive the gear rod 6 to rotate the gear 5. During the rotation of the gear 5, it will drive the handle of the lock hook 4 to rotate through the shaft 7, so that the handle of the lock hook 4 rotates around the axis of the gear 5 on the front of the base 2, so that the lock hook 4 gradually disengages from the engagement state with the lock stopper 3. When the lock hook 4 is completely disengaged from the lock stopper 3, the block seat 1 and the base 2 are in an unlocked state, so that the external automatic opening and closing device can drive the lock stopper 3 and the base 2 to perform translational movement. The entire unlocking process effectively reduces the probability of misoperation; in order to improve the stability of the locking plug-in part 16 in the plug-in port 20, when the locking plug-in part 16 is inserted into the plug-in port 20, the magnetic force between the two will adsorb the locking plug-in part 16 in the plug-in port 20, thereby forming a stable connection, which improves the stability of the locking plug-in part 16 in the plug-in port 20; in order to improve the stability of the gear rod 6 during movement, when the gear rod 6 is inserted between the two guide blocks 29, its side surface will be in close contact with the surface of the guide block 29 to form a stable guiding structure, so that even under the action of external force, the gear rod 6 can maintain the accuracy of its moving direction, avoiding the movement deviation of the gear rod 6; in order to further improve the stability of the gear rod 6 during movement, when the gear rod 6 moves, the stabilizing block 22 located on the gear rod 6 will slide smoothly in the guide groove 21 along its length direction, thereby further reducing the deviation and shaking of the gear rod 6 during movement.

[0031] The utility model also provides a safety door lock, on which the manual safety door lock unlocking device is arranged.

[0032] Working principle: Same as the above manual safety door lock unlocking device, so no further details will be given here.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual safety door lock unlocking device, comprising a lock stopper (3) and a lock hook (4), characterized in that: Also includes: A stopper (1) having the lock stopper (3) fixed on the front; A base (2) having a lock hook (4) rotatably disposed at the front, wherein the height of the lock hook (4) corresponds to the lock stop (3); A gear (5) is rotatably disposed behind the base (2), and the gear (5) is fixed to the handle of the locking hook (4) via an axle (7); A guide block (8) is arranged at the rear of the base (2) and is movably penetrated by a gear rod (6), the gear rod (6) is meshed with the gear (5), an unlocking rod (10) is arranged on the gear rod (6), and an unlocking groove (11) suitable for the unlocking rod (10) to slide is opened on the base (2) along its height direction; and a locking mechanism (12) disposed between the gear rod (6) and the base (2) and selectively fixing the gear rod (6) and the base (2) relative to each other so as to restrict or allow the gear rod (6) to move in a height direction of the base (2).

2. The manual safety door lock unlocking device according to claim 1, characterized in that: The locking mechanism (12) comprises a locking disk (13), a locking block (14), a locking column (15) and a locking plug-in portion (16); The locking block (14) is arranged at the top end of the locking column (15), and the locking plug-in portion (16) is arranged at the bottom end of the locking column (15); The locking disk (13) is provided with a locking groove (17) suitable for the locking column (15) to be movably inserted, the peripheral side wall of the locking disk (13) is provided with a rotation groove (18) suitable for the locking column (15) to rotate 180 degrees, the rotation groove (18) is communicated with the locking groove (17), and the top of the locking disk (13) is provided with a locking opening (19) which is communicated with the rotation groove (18) and suitable for the locking block (14) to be movably inserted; The bottom end of the locking column (15) movably penetrates the base (2), and the toothed rod (6) is provided with an insertion port (20) suitable for the movably inserted locking plug-in portion (16).

3. The manual safety door lock unlocking device according to claim 2, characterized in that: The locking plug-in portion (16) and the plug-in port (20) are suitable for being adsorbed onto each other.

4. The manual safety door lock unlocking device according to claim 1, characterized in that: Two guide blocks (9) are arranged opposite to each other at the rear of the base (2), and the distance between the two guide blocks (9) is suitable for the bottom of the gear rod (6) to be movably inserted.

5. The manual safety door lock unlocking device according to claim 4, characterized in that: The gear rod (6) is provided with a guide groove (21) along its length direction. A stabilizing block (22) is slidably disposed in the guide groove (21). The stabilizing block (22) is relatively fixed to one of the guide blocks (9).

6. A safety door lock, characterized in that: The safety door lock is provided with the manual safety door lock unlocking device according to any one of claims 1 to 5.

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