Automatic reset elevator lock
Through the design of the automatic reset lock, the coordination of the reset lock and the reset pin is used to solve the problem of the lock hook displacement of the elevator door lock after a long time of use, and the automatic reset of the lock hook is realized, ensuring that the elevator door is closed safely and reliably, improving the The service life and safety of elevator locks.
Patent Information
- Application Number
- CN202421227148.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing elevator door locks can easily cause the lock hook and lock ring to be displaced after a long period of use, resulting in the elevator door being unable to close, causing the elevator to be powered off and safety hazards.
An automatic reset elevator lock is designed. Through the combined structure of reset lock, reset pin, mounting plate and external cam, the automatic reset of the lock hook is achieved by using the combination of reset lock and reset pin to avoid excessive deviation of the lock hook, and Through the coordination of the outer cam and thread groove, the friction and inertia influence are reduced and the service life of the lock is improved.
It effectively avoids the problem of excessive offset of the lock hook, ensures that the elevator door can be closed normally, improves the safety and service life of the elevator lock, and avoids power outages caused by the door lock failure of the elevator.
Smart Images
Figure CN222312451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator locks, in particular to an automatic resetting elevator lock. Background Art
[0002] The elevator door is a very important part of the elevator. The one that can be seen from the outside of the elevator and is fixed on each floor is called the hall door, and the one that can be seen from the inside and is fixed to the car and moves with the car is called the car door.
[0003] The elevator door lock is an important component for the safe operation of the elevator. The elevator door lock is used in conjunction with the elevator door knife to realize the opening and locking of the elevator door lock, thereby realizing the opening and closing of the elevator door.
[0004] In the prior art, elevator door locks are mostly composed of a lock hook and a lock ring. The lock hook and the lock ring are respectively installed on the corresponding sides of the two hall doors of the elevator. When the hall doors are closed, the lock hook hits the lock ring, lifts itself, and inserts into the inside of the lock ring to fix the two hall doors and lock the two hall doors closed.
[0005] However, due to the collision between the lock hook and the lock ring, the lock ring or the lock hook may be easily displaced. After the hall door has been used for a long time, this problem becomes more obvious, and the lock hook and the lock ring may be difficult to lock, resulting in the hall door being unable to close, causing the elevator to be powered off and unusable, and even causing danger due to the hall door being unable to be locked. Utility Model Content
[0006] According to the shortcomings of the prior art, the purpose of the utility model is to provide an automatic reset elevator lock so as to solve the technical problems mentioned in the above background technology.
[0007] The above technical objectives of the utility model are achieved through the following technical solutions:
[0008] An automatic reset elevator lock comprises an elevator guide rail, wherein two sides of the elevator guide rail are respectively slidably connected with a left slide rail and a right slide rail;
[0009] A fixing hook is provided on one side of the left slide rail, and a reset lock is provided on one end of the left slide rail;
[0010] An extension slot is provided on the same side of the right slide rail as the fixed hook, a mounting plate is provided inside the extension slot, a locking hook that matches the positioning slot is rotatably installed on one side of the mounting plate, a deflection spring is provided at the position where the mounting plate is connected to the locking hook, and a reset pin is provided at the position of the right slide rail corresponding to the reset lock.
[0011] Furthermore, the reset lock includes a fixed shaft, the fixed shaft is fixedly arranged at one end of the left slide rail close to the right slide rail, and the first external cam is arranged at one end of the fixed shaft away from the left slide rail.
[0012] Furthermore, a first rotating arc piece is slidably provided on the inner upper wall of the extending slot, and a first thread groove is formed on the slot wall of the first rotating arc piece.
[0013] Furthermore, the mounting plate is slidably connected to the extension slot, a second rotation groove is provided at a top end of the mounting plate at a position corresponding to the first rotation arc piece, and a second thread groove is provided on a groove wall of the second rotation groove.
[0014] Furthermore, the reset pin includes a rotating shaft, which is rotatably arranged inside the first rotating arc piece, and an external thread is arranged on the outer surface of the rotating shaft, and the external thread is simultaneously threadedly matched with the first thread groove and the second thread groove, and a second external cam is fixedly arranged at one end of the rotating shaft close to the left slide rail.
[0015] Furthermore, the opposite ends of the locking hook and the fixing hook are both arranged as arc surfaces.
[0016] Furthermore, elevator doors are arranged on the bottom sides of the left slide rail and the right slide rail, and when the two elevator doors are closed, the first outer cam and the second outer cam are in close contact.
[0017] In summary, the present invention includes at least one of the following beneficial technical effects:
[0018] 1. This kind of automatically reset elevator lock, after the two elevator doors are closed, the reset lock cooperates with the reset pin, at this time the reset pin will rotate to the position before the locking hook and the fixed hook collide under the influence of the reset lock, at this time the mounting plate will return to its original position under the push of the reset pin, thereby avoiding the problem of excessive displacement of the locking hook after long-term use of the elevator lock, and effectively achieving the purpose of automatically resetting the locking hook;
[0019] 2. The automatic reset elevator lock, when the two elevator surfaces are closed, the first outer cam and the second outer cam contact each other, and then the arc surface ends of the first outer cam and the second outer cam push the second outer cam to rotate, and the rotating shaft rotates, and then the first thread groove and the second thread groove are pushed through the external thread, so as to achieve the effect of resetting the mounting plate;
[0020] 3. In this type of automatically reset elevator lock, the groove diameter of the first rotating arc piece is equal to the shaft diameter of the rotating shaft, so that the rotating shaft can rotate inside the first rotating arc piece. During the rotation of the reset pin, the first rotating arc piece can be pushed to reduce the friction between the reset pin and the right slide rail, thereby increasing the service life of the reset pin. In addition, since the reset pin is rotatably connected to the right slide rail, the second threaded groove can be used to fix the mounting plate, thereby avoiding the problem of movement under the influence of inertia. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 The utility model is a structural schematic diagram of an automatic reset elevator lock.
[0023] Figure 2 The utility model is a schematic structural diagram of a reset pin of an elevator lock with automatic reset.
[0024] Figure 3 The utility model is a structural schematic diagram of a right slide rail of an automatically reset elevator lock.
[0025] Figure 4 The utility model is a structural schematic diagram of a left slide rail and a reset lock of an automatic reset elevator lock.
[0026] Figure 5 The utility model is a schematic structural diagram of a reset lock and a reset pin of an automatic reset elevator lock.
[0027] In the figure, 1, elevator guide rail; 2, left slide rail; 3, right slide rail; 4, fixing hook; 5, reset lock; 51, fixed shaft; 52, first external cam; 6, extension slot; 7, mounting plate; 8, locking hook; 9, deflection spring; 10, reset pin; 101, rotating shaft; 102, external thread; 103, second external cam; 11, first rotating arc plate; 12, first thread groove; 13, second rotating groove; 14, second thread groove; 15, elevator door. DETAILED DESCRIPTION
[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0029] Example:
[0030] Reference Figure 1-Figure 1-5, an automatic reset elevator lock disclosed in the utility model comprises an elevator guide rail 1, wherein the inner sides of the elevator guide rail 1 are respectively slidably connected with a left slide rail 2 and a right slide rail 3;
[0031] A fixing hook 4 is provided on one side of the left slide rail 2, and a reset lock 5 is provided on one end of the left slide rail 2;
[0032] An extension slot 6 is provided on the same side of the right slide rail 3 as the fixed hook 4, a mounting plate 7 is provided inside the extension slot 6, a locking hook 8 matching the positioning slot is rotatably installed on one side of the mounting plate 7, and a deflection spring 9 is provided at the position where the mounting plate 7 is connected to the locking hook 8, and a reset pin 10 is provided at the position of the right slide rail 3 corresponding to the reset lock 5.
[0033] In this embodiment, when the elevator door 15 is closed, Figure 3 , since the two elevator doors 15 are respectively connected to the left slide rail 2 and the right slide rail 3, and after the two elevator doors 15 are closed, the locking hook 8 will be buckled into the interior of the fixed hook 4, thereby achieving the purpose of locking the two elevator doors 15;
[0034] In the prior art, the locking hook 8 is mostly installed on the upper end of the right slide rail 3 through a screw, so that the locking hook 8 is easily displaced when impacted.
[0035] Before the two elevator doors 15 are about to close, the locking hook 8 will hit the fixed hook 4, causing the locking hook 8 to bounce up, and under the action of the deflection spring 9, the locking hook 8 will quickly fall down after bouncing up and hook into the inside of the fixed hook 4. The impact force generated by the locking hook 8 hitting the fixed hook 4 will cause the mounting plate 7 for mounting the locking hook 8 to move, and during the movement of the mounting plate 7, the reset pin 10 will rotate;
[0036] After the two elevator doors 15 are closed, the reset lock 5 cooperates with the reset pin 10. At this time, the reset pin 10 will rotate under the influence of the reset lock 5 (that is, the reset pin 10 rotates to the position before the locking hook 8 collides with the fixed hook 4). At this time, the mounting plate 7 will return to its original position under the push of the reset pin 10, thereby avoiding the problem that the locking hook 8 is excessively offset after the elevator lock is used for a long time, and the elevator door 15 cannot be closed.
[0037] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the reset lock 5 includes a fixed shaft 51 , which is fixedly disposed at one end of the left slide rail 2 close to the right slide rail 3 , and a first external cam 52 is disposed at one end of the fixed shaft 51 away from the left slide rail 2 .
[0038] In this embodiment, Figure 4The fixed shaft 51 is installed at one end of the left slide rail 2, and the first outer cam 52 is fixedly connected and fits with the left slide rail 2 to achieve the effect of fixing the first outer cam 52.
[0039] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a first rotating arc piece 11 is slidably provided on the inner upper wall of the extending slot 6 , and a first thread groove 12 is formed on the groove wall of the first rotating arc piece 11 .
[0040] In this embodiment, the groove diameter of the first rotating arc piece 11 is equal to the shaft diameter of the rotating shaft 101, so that the rotating shaft 101 can rotate inside the first rotating arc piece 11. During the rotation of the reset pin 10, the first rotating arc piece 11 can be pushed, thereby reducing the friction between the reset pin 10 and the right slide rail 3, thereby increasing the service life of the reset pin 10.
[0041] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the mounting plate 7 is slidably connected to the extension slot 6 , a second rotation groove 13 is provided at the top of the mounting plate 7 at a position corresponding to the first rotation arc piece 11 , and a second thread groove 14 is provided on the groove wall of the second rotation groove 13 .
[0042] In this embodiment, through the setting of the second rotating groove 13, in cooperation with the first rotating arc piece 11, it is used to install the rotating shaft 101, and through the setting of the second threaded groove 14, when the reset pin 10 rotates, it can push the second threaded groove 14 to achieve the purpose of moving the mounting plate 7 to reset it, and because the reset pin 10 is rotationally connected to the right slide rail 3, it can fix the mounting plate 7 to avoid the problem of movement under the influence of inertia.
[0043] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the reset pin 10 includes a rotating shaft 101, which is rotatably arranged inside the first rotating arc piece 11, and the outer surface of the rotating shaft 101 is provided with an external thread 102, and the external thread 102 is threadedly matched with the first thread groove 12 and the second thread groove 14 at the same time, and a second external cam 103 is fixedly arranged at one end of the rotating shaft 101 close to the left slide rail 2.
[0044] In this embodiment, when in use, the rotating shaft 101 is rotatably installed inside the right slide rail 3, and the portion with the external thread 102 is inserted into the first rotating arc piece 11 and the second rotating groove 13, and the external thread 102 is threadedly engaged with the first thread groove 12 and the second thread groove 14 at the same time;
[0045] The pitch of the external thread 102 is relatively large, so that the external thread 102 is approximately in the shape of an arc, such as Figure 5 , thereby being able to reduce the force influence of the mounting plate 7 on the external thread 102 during collision, thereby achieving the effect of protecting the external thread 102.
[0046] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the opposite ends of the locking hook 8 and the fixing hook 4 are both configured as arc surfaces.
[0047] In this embodiment, the locking hook 8 and the fixing hook 4 are arranged on the arc surface, so that when the two elevator doors 15 are closed, they can collide with each other to bounce the locking hook 8, and the arc surface is arranged to change the force direction of the locking hook 8 and the fixing hook 4 during the collision, so as to avoid the effect of excessive deflection of the locking hook 8 during a single collision.
[0048] In a further preferred embodiment of the present invention, Figure 1-5 As shown, elevator doors 15 are provided on the bottom sides of the left slide rail 2 and the right slide rail 3, and when the two elevator doors 15 are closed, the first outer cam 52 and the second outer cam 103 are in close contact.
[0049] In this embodiment, when the two elevator surfaces are closed to each other, the second outer cam 103 has been deflected under the influence of the mounting plate 7, and the first outer cam 52 is fixedly connected to the left slide rail 2. At this time, the first outer cam 52 and the second outer cam 103 are in contact with each other, and then the second outer cam 103 is pushed to rotate through the arc ends of the first outer cam 52 and the second outer cam 103, and the rotating shaft 101 is rotated, and then the first thread groove 12 and the second thread groove 14 are pushed through the external thread 102, so that the mounting plate 7 is reset, and then the locking hook 8 is restored.
[0050] The implementation principle of the above embodiment is as follows: in the process of the elevator door 15 from being fully opened to being closed, the left slide rail 2 and the right slide rail 3 gradually approach each other, and before the two elevator doors 15 are about to close, the locking hook 8 hits the fixed hook 4, causing the locking hook 8 to bounce up, and under the action of the deflection spring 9, the locking hook 8 falls down quickly after being bounced up, and hooks into the inside of the fixed hook 4;
[0051] The impact force generated by the locking hook 8 hitting the fixing hook 4 will cause the mounting plate 7 for mounting the locking hook 8 to move. During the movement of the mounting plate 7, the second thread groove 14 will push the external thread 102, thereby rotating the rotating shaft 101, so that the second external cam 103 is deflected under the influence of the rotating shaft 101. When the locking hook 8 is not offset, the positions of the second external cam 103 and the first external cam 52 correspond, and the first external cam 52 and the second external cam 103 can form a complete cylinder, such as Figure 3 and 5 ;
[0052] After the two elevator doors 15 are closed, that is, the left slide rail 2 and the right slide rail 3 are close to each other, and the reset lock 5 and the reset pin 10 cooperate, that is, the first outer cam 52 and the second outer cam 103 collide with each other. Since the second outer cam 103 has been deflected under the influence of the mounting plate 7, and the first outer cam 52 is fixedly connected to the left slide rail 2, when the first outer cam 52 and the second outer cam 103 collide with each other, they will cooperate with each other due to the influence of the outer edge arc surface of the first outer cam 52 and the second outer cam 103, that is, the arc surfaces of the first outer cam 52 and the second outer cam 103 are tightly fitted to each other, so the second outer cam 103 will be reset. When the second outer cam 103 is reset, the rotating shaft 101 rotates, and the external thread 102 pushes the second thread groove 14 to move, so that the mounting plate 7 returns to the position where the locking hook 8 is not offset, thereby achieving the goal of restoring the elevator lock to the initial state, so as to avoid the problem of excessive offset of the locking hook 8 after the elevator lock is used for a long time, thereby effectively improving the safety and practicality of the elevator lock.
[0053] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An automatically reset elevator lock, comprising an elevator guide rail (1), characterized in that: The elevator guide rail (1) is slidably connected to a left slide rail (2) and a right slide rail (3) on both sides of its interior; A fixing hook (4) is provided on one side of the left slide rail (2), and a reset lock (5) is provided on one end of the left slide rail (2); An extension slot (6) is provided on the same side of the right slide rail (3) as the fixed hook (4), a mounting plate (7) is provided inside the extension slot (6), a locking hook (8) which matches the positioning slot is rotatably mounted on one side of the mounting plate (7), a deflection spring (9) is provided at a position where the mounting plate (7) is connected to the locking hook (8), and a reset pin (10) is provided at a position of the right slide rail (3) corresponding to the reset lock (5).
2. An automatic reset elevator lock according to claim 1, characterized in that: The reset lock (5) comprises a fixed shaft (51), wherein the fixed shaft (51) is fixedly arranged at one end of the left slide rail (2) close to the right slide rail (3), and a first external cam (52) is arranged at one end of the fixed shaft (51) away from the left slide rail (2).
3. An automatic reset elevator lock according to claim 2, characterized in that: A first rotating arc piece (11) is slidably disposed on the inner upper wall of the extending slot (6), and a first thread groove (12) is formed on the groove wall of the first rotating arc piece (11).
4. An automatic reset elevator lock according to claim 3, characterized in that: The mounting plate (7) is slidably connected to the extension slot (6); a second rotation groove (13) is provided at a position on the top of the mounting plate (7) corresponding to the first rotation arc piece (11); and a second thread groove (14) is provided on a groove wall of the second rotation groove (13).
5. An automatic reset elevator lock according to claim 4, characterized in that: The reset pin (10) includes a rotating shaft (101), the rotating shaft (101) is rotatably arranged inside the first rotating arc piece (11), and the outer surface of the rotating shaft (101) is provided with an external thread (102), the external thread (102) is threadably matched with the first thread groove (12) and the second thread groove (14), and a second external cam (103) is fixedly arranged at one end of the rotating shaft (101) close to the left slide rail (2).
6. An automatic reset elevator lock according to claim 5, characterized in that: The opposite ends of the locking hook (8) and the fixing hook (4) are both arranged in curved surfaces.
7. An automatic reset elevator lock according to claim 6, characterized in that: The bottom sides of the left slide rail (2) and the right slide rail (3) are both provided with elevator doors (15), and when the two elevator doors (15) are closed, the first outer cam (52) and the second outer cam (103) are in contact.