An elevator synchronous door blade with a car door lock

Abstract

The utility model relates to elevator door sword technical field, specifically disclose a kind of elevator synchronous door sword with car door lock, including door hanging plate, the front end of door hanging plate is equipped with the accommodation groove, and the inside of accommodation groove is passed out and has the block that passes out, the one end fixed mounting of block that passes out accommodation groove is equipped with door sword main part, and the one side of block that passes out accommodation groove inside is provided with dismounting mechanism;The dismounting mechanism includes servo motor, and the outer wall one side of door hanging plate is embedded in servo motor, and the power output end of servo motor is fixedly installed with worm, by the cooperation of servo motor, sliding block, clamping plate, engagement block, engagement slot, first spring, electromagnet, block and the slot that goes in, can be clamped and engaged from two sides to block that passes out, to when quickly let door hanging plate and door sword main part dismount, can improve the stability of clamping, avoid the situation of inclination or instability, lead to influence the locking accuracy of door sword main part, improve the security of elevator operation.

Description

Technical Field

[0001] This utility model relates to the field of elevator door knife technology, and in particular to an elevator synchronous door knife with a car door lock. Background Technology

[0002] An elevator door knife is a mechanical device installed between the elevator car door and the landing door. It is responsible for opening and closing the elevator car door. A synchronous door knife with a car door lock is one type of elevator door knife. When the elevator loses power or other emergencies occur, some synchronous door knives with car door locks can lift the lock hook by pulling the emergency unlocking steel wire rope, thereby opening the car door panel and reducing the difficulty of rescue.

[0003] In existing technologies, synchronous door blades with car door locks are fixedly connected to the door blade base plate and the door mounting plate through hinges or other means. This connection method makes disassembly inconvenient during maintenance and affects the convenience of maintenance.

[0004] An existing patent (publication number: CN212503552U) discloses a synchronous door knife device with a car door lock for an elevator. During installation, the mounting block is placed inside the mounting groove, and the slot on the mounting block corresponds to the position of the locking block. The servo motor rotates the shaft clockwise, which drives the drive gear to rotate. The drive gear drives the driven gear and the lead screw to rotate. During the rotation of the lead screw, the threaded groove on the sliding rod drives the sliding rod to move towards the slot. During the movement of the sliding rod, the locking block moves until the locking block enters the slot. At this time, the mounting block is fixed inside the mounting groove, thereby fixing the door knife base plate to the door hanger.

[0005] To address the aforementioned issues, while existing patents have proposed solutions that enable the disassembly and assembly of the door knife base plate through the cooperation of components such as servo motors, there is a problem in practical use: the locking and clamping end is only designed on one side, and this fixing method lacks sufficient stability. This may cause the door knife base plate to shake or become unstable, thus failing to lock accurately, affecting the normal use of the elevator, and even posing certain dangers. Summary of the Invention

[0006] The purpose of this utility model is to provide an elevator synchronous door knife with a car door lock, which can improve the stability of clamping, avoid tilting or instability, and thus improve the locking accuracy of the door knife body, thereby improving the safety of elevator operation and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an elevator synchronous door knife with a car door lock, including a door hanging plate, a mounting groove is provided at the front end of the door hanging plate, and a protruding block protrudes from the inside of the mounting groove. The door knife body is fixedly installed at one end of the protruding block protruding from the mounting groove, and a disassembly and assembly mechanism is provided on one side of the protruding block inside the mounting groove.

[0008] The disassembly and assembly mechanism includes a servo motor, which is embedded in one side of the outer wall of the door panel. A worm gear is fixedly installed at the power output end of the servo motor. The worm gear passes through the outer wall of one end of the door panel and is rotatably connected to a worm wheel. A bidirectional threaded rod extends out of the inside of the worm wheel, and a slider is slidably connected to one end of the bidirectional threaded rod that extends out of the worm wheel. A clamping plate is fixedly installed at the axial end of the slider, and a locking block is fixedly installed on the outer wall of the clamping plate. A locking groove is opened on the outer wall of the protruding block at the position corresponding to the locking block.

[0009] Preferably, the disassembly and assembly mechanism further includes a first spring, which is embedded inside the locking block, and one end of the first spring is fixedly installed with an insertion block. An electromagnet is embedded on one side of the first spring inside the locking block, and an insertion groove is provided at the bottom inside the locking groove.

[0010] Preferably, the slider and the door mounting plate form a sliding structure, and the slider is threadedly connected to the bidirectional threaded rod.

[0011] Preferably, the placement groove has sliding grooves on both sides inside, and a positioning mechanism is provided inside the sliding grooves.

[0012] Preferably, the positioning mechanism includes a connecting frame, which is fixed on both sides of the outer wall of the clamping plate, and a rotating plate extends through the inside of the connecting frame. A rotating shaft extends through one end of the rotating plate that is inserted into the connecting frame. A fixing block is fixedly installed inside the sliding groove, and an abutment wheel is rotatably connected inside the fixing block.

[0013] Preferably, the positioning mechanism further includes a positioning groove, which is opened at the position of the rotating plate on the outer wall of the through block, and a second spring is embedded inside the positioning groove, with a contact plate fixedly installed at one end of the second spring.

[0014] Preferably, the rotating plate forms a rotating structure with the connecting frame via a rotating shaft, and the rotating plate forms a sliding structure with the contact wheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the cooperation of servo motor, slider, clamping plate, locking block, locking groove, first spring, electromagnet, insertion block and insertion groove, the insertion block can be clamped and locked from both sides, thereby improving the clamping stability when quickly disassembling and assembling the door hanging plate and the door knife body, avoiding tilting or instability, which would affect the locking accuracy of the door knife body and improve the safety of elevator operation;

[0017] 2. Through the cooperation of the slide, connecting frame, rotating shaft, rotating plate, fixing block, abutting wheel, positioning groove, second spring and abutting plate, the through block can be clamped and positioned from both sides during disassembly and assembly, keeping the locking block and locking groove of the disassembly and assembly mechanism stably aligned and avoiding skewing. At the same time, the rotating plate further improves the load-bearing capacity of the through block and the door knife body to maintain stability. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the electromagnet structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the insertion groove structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the fixing block structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Door hanging plate; 2. Installation groove; 3. Through block; 4. Door knife body; 5. Disassembly and assembly mechanism; 501. Servo motor; 502. Worm gear; 503. Worm wheel; 504. Bidirectional threaded rod; 505. Slider; 506. Clamping plate; 507. Engaging block; 508. Engaging groove; 509. First spring; 510. Electromagnet; 511. Through block; 512. Through groove; 6. Slide groove; 7. Positioning mechanism; 701. Connecting frame; 702. Rotating shaft; 703. Rotating plate; 704. Fixing block; 705. Abutment wheel; 706. Positioning groove; 707. Second spring; 708. Abutment plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a technical solution:

[0029] Please see Figures 1 to 5 An elevator synchronous door knife with a car door lock includes a door mounting plate 1. A mounting groove 2 is formed at the front end of the door mounting plate 1. A protruding block 3 extends through the interior of the mounting groove 2. A door knife body 4 is fixedly installed at one end of the protruding block 3 extending through the mounting groove 2. A disassembly and assembly mechanism 5 is provided on one side of the protruding block 3 inside the mounting groove 2. The disassembly and assembly mechanism 5 includes a servo motor 501, which is embedded in one side of the outer wall of the door mounting plate 1. A worm gear 502 is fixedly installed at the power output end of the servo motor 501. The worm gear 502 passes through the outer wall of one end of the door mounting plate 1 and is rotatably connected to a worm wheel 503. A bidirectional threaded rod 504 extends through the interior of the worm wheel 503. One end of the bidirectional threaded rod 504 extends through the worm wheel 503 and slides... The sliding block 505 is connected to the door hanging plate 1. A clamping plate 506 is fixedly installed on the axial end of the sliding block 505. A locking block 507 is fixedly installed on the outer wall of the clamping plate 506. A locking groove 508 is opened on the outer wall of the through block 3 corresponding to the position of the locking block 507. The disassembly and assembly mechanism 5 also includes a first spring 509. The first spring 509 is embedded in the inside of the locking block 507. A through block 511 is fixedly installed on one end of the first spring 509. An electromagnet 510 is embedded on one side of the first spring 509 inside the locking block 507. A through groove 512 is opened at the bottom inside the locking groove 508. The sliding block 505 and the door hanging plate 1 form a sliding structure. The sliding block 505 is threadedly connected to the bidirectional threaded rod 504.

[0030] By adopting the above technical solution, when the through-hole block 3 of the door knife body 4 is inserted into the mounting slot 2 of the door hanging plate 1, the servo motor 501 drives the worm gear 502, thereby causing the two worm wheels 503 to drive the corresponding bidirectional threaded rods 504 to rotate, causing the two sliders 505 to drive the clamping plate 506 to slide relative to each other, thereby allowing the locking block 507 to be inserted into the locking groove 508, clamping and positioning the through-hole block 3 from both sides, and enabling quick assembly and disassembly. Through the clamping and positioning from both sides, the stability of the load-bearing process is improved, avoiding the situation of displacement, which would cause the door knife body 4 to have errors and fail to lock. When the locking block 507 enters the locking groove 508, the closed electromagnet 510 pushes the metal through-hole block 511 into the through-hole groove 512 through the first spring 509, increasing the load-bearing length and area, thereby improving the load-bearing stability and increasing the load-bearing force on the door knife body 4 after installation. When disassembling, the electromagnet 510 is activated to allow the through-hole block 511 to pass out of the through-hole groove 512 for easy disassembly.

[0031] Specifically, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the inner sides of the mounting groove 2 are provided with sliding grooves 6. The sliding grooves 6 are provided with positioning mechanisms 7. The positioning mechanism 7 includes a connecting frame 701, which is fixed to both sides of the outer wall of the clamping plate 506. A rotating plate 703 extends out of the inner side of the connecting frame 701. A rotating shaft 702 extends out of the inner side of the rotating plate 703. A fixing block 704 is fixedly installed inside the sliding groove 6. A contact wheel 705 is rotatably connected inside the fixing block 704. The positioning mechanism 7 also includes a positioning groove 706, which is opened on the outer wall of the protruding block 3 at the position corresponding to the rotating plate 703. A second spring 707 is embedded inside the positioning groove 706. A contact plate 708 is fixedly installed at one end of the second spring 707. The rotating plate 703 forms a rotating structure with the connecting frame 701 through the rotating shaft 702. The rotating plate 703 forms a sliding structure with the contact wheel 705.

[0032] By adopting the above technical solution, when the clamping plate 506 is in the clamping process, it drives the connecting frame 701 to slide along the slide groove 6, improving the stability of the sliding process. At the same time, it can drive the rotating plate 703 to slide along the slide groove 6 via the rotating shaft 702. Under the fixation of the fixing block 704, the abutment wheel 705 rotates to abut the rotating plate 703, thereby rotating the rotating shaft 702 and allowing one end of the rotating plate 703 to enter the positioning groove 706. It also presses the abutment plate 708 to compress the second spring 707, thereby positioning the through block 3 from both sides to avoid tilting or deviation, which would cause the locking block 507 to fail to align with the locking groove 508, maintaining the accuracy of the assembly process. At the same time, after the rotating plate 703 enters the positioning groove 706, it increases the load-bearing force on the through block 3. When disassembling, the second spring 707 elastically pushes the abutment plate 708, thereby pushing the rotating plate 703 out of the positioning groove 706, avoiding the limitation during the disassembly process.

[0033] Working principle: The door knife body 4 is composed of multiple auxiliary components such as the knife arm assembly, connecting rod assembly, swing arm assembly, and lock hook assembly. These are conventional technologies and will not be described in detail here. A through-block 3 fixed on one side of the door knife body 4 passes through the mounting slot 2 of the door hanging plate 1. Driven by the servo motor 501 and the worm gear 502 and worm wheel 503, the bidirectional threaded rod 504 drives two sliders 505, causing the clamping plate 506 to push the locking block 507 into the locking groove 508, clamping and limiting it from both sides. This allows the door hanging plate 1 to be quickly disassembled and assembled with the door knife body 4. Simultaneously, the electromagnet 510 is closed, causing the first spring 509 to elastically push the through-block 511 into the through-groove 512, further improving the locking time. The increased penetration enhances load-bearing capacity. During the sliding process of the clamping plate 506, the connecting brackets 701 at both ends slide along the slide groove 6, thereby driving the rotating plate 703 to move via the rotating shaft 702. The abutting wheel 705, which is rotatably connected via the fixing block 704, abuts against and causes the rotating plate 703 to rotate via the rotating shaft 702, passing through the positioning groove 706 and abutting against the protruding block 3 to perform positioning and clamping, thus preventing deviation and improving the installation accuracy of the door knife body 4. During disassembly and assembly, the sliding of the locking block 507 causes the rotating plate 703 to move accordingly. The second spring 707 elastically pushes the abutting plate 708, allowing the rotating plate 703 to disengage from the positioning groove 706 to avoid limiting the position during disassembly.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An elevator synchronous door knife with a car door lock, comprising a door mounting plate (1), characterized in that: The front end of the door hanging plate (1) is provided with a mounting groove (2), and a protruding block (3) extends through the inside of the mounting groove (2). A door knife body (4) is fixedly installed at one end of the protruding block (3) extending through the mounting groove (2), and a disassembly and assembly mechanism (5) is provided on one side of the protruding block (3) inside the mounting groove (2). The disassembly and assembly mechanism (5) includes a servo motor (501), which is embedded in one side of the outer wall of the door hanging plate (1). A worm gear (502) is fixedly installed at the power output end of the servo motor (501). The worm gear (502) passes through the outer wall of one end of the door hanging plate (1) and is rotatably connected to a worm wheel (503). A bidirectional threaded rod (504) passes through the inside of the worm wheel (503). A slider (505) is slidably connected at one end of the bidirectional threaded rod (504) that passes through the worm wheel (503). A clamping plate (506) is fixedly installed at the axial end of the slider (505). A locking block (507) is fixedly installed on the outer wall of the clamping plate (506). A locking groove (508) is opened on the outer wall of the protruding block (3) corresponding to the locking block (507).

2. The elevator synchronous door knife with car door lock according to claim 1, characterized in that: The disassembly and assembly mechanism (5) further includes a first spring (509), which is embedded in the inside of the locking block (507), and a through block (511) is fixedly installed at one end of the first spring (509). An electromagnet (510) is embedded on one side of the first spring (509) inside the locking block (507), and a through slot (512) is provided at the bottom inside the locking groove (508).

3. The elevator synchronous door knife with car door lock according to claim 1, characterized in that: The slider (505) and the door hanging plate (1) form a sliding structure, and the slider (505) is threadedly connected to the bidirectional threaded rod (504).

4. The elevator synchronous door knife with car door lock according to claim 1, characterized in that: The placement groove (2) has sliding grooves (6) on both sides inside, and a positioning mechanism (7) is provided inside the sliding groove (6).

5. An elevator synchronous door knife with a car door lock according to claim 4, characterized in that: The positioning mechanism (7) includes a connecting frame (701), which is fixed on both sides of the outer wall of the clamping plate (506). A rotating plate (703) extends through the inside of the connecting frame (701). A rotating shaft (702) extends through one end of the rotating plate (703) that enters the connecting frame (701). A fixing block (704) is fixedly installed inside the slide groove (6), and an abutment wheel (705) is rotatably connected inside the fixing block (704).

6. The elevator synchronous door knife with car door lock according to claim 5, characterized in that: The positioning mechanism (7) further includes a positioning groove (706), which is located on the outer wall of the through block (3) corresponding to the rotating plate (703). A second spring (707) is embedded inside the positioning groove (706), and an abutment plate (708) is fixedly installed at one end of the second spring (707).

7. The elevator synchronous door knife with car door lock according to claim 5, characterized in that: The rotating plate (703) forms a rotating structure with the connecting frame (701) through the rotating shaft (702), and the rotating plate (703) forms a sliding structure with the abutting wheel (705).

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