An elevator door machine that is easy to adjust

Abstract

The utility model belongs to elevator technical field, specifically speaking is a kind of elevator door machine convenient to adjust, including support frame, the car door is equipped with adjusting assembly, adjusting assembly includes connecting block, connecting block is equipped with moving block, the moving groove is opened in the guide plate, first screw rod is rotatably installed on the inner wall of moving groove, millimeter level scale line is provided on the first guide rail side wall, two car door top sides are equipped with clamping seat, the clamping groove is opened in the clamping seat, first threaded hole is opened in the inner wall of clamping groove, clamping block is assembled in the clamping groove, pointer is installed on the clamping block, car door is horizontally moved by moving block, the pointer on car door is horizontally moved, the fine adjustment of pointer is realized, the pointer is quickly and accurately pointed to the required scale, the accurate adjustment of car door position is realized, this structure can be intuitively adjusted door leaf gap, reduces the adjustment time, and adjustment step is convenient, it is beneficial to improve the convenience of adjustment door leaf gap.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator door operator that is easy to adjust. Background Technology

[0002] An elevator door operator is a mechanism responsible for opening and closing the elevator hall and car doors. When it receives an elevator door opening or closing signal, the elevator door operator controls the door opening motor through its own control system, converting the torque generated by the motor into a force in a specific direction to close or open the door. Inside the elevator, the elevator door operator is needed to drive the car door.

[0003] Chinese patent CN 217535111 U discloses an adjustable elevator door operator, including a mounting base. The front of the mounting base is provided with a drive mechanism and a T-shaped limiting strip. The drive mechanism includes two pulleys rotatably connected to the surface of the mounting base. A belt body is provided on the surface of the two pulleys, and two belt clamps are provided on the surface of the belt body. Two positioning pulley sets are provided on the surface of the T-shaped limiting strip. This adjustable elevator door operator uses a servo motor to drive the pulleys to rotate, thereby rotating the belt body. This, in turn, drives the connecting rod, connecting plate, and car door to move via the belt clamps, achieving the purpose of opening and closing the car door. When the car door is not closed tightly or is closed too much, a micro-motor drives a horizontal adjusting screw to rotate, which adjusts the position of the sliding block, thereby adjusting the position of the two car doors. No adjustment of the belt clamps is required, allowing for rapid adjustment.

[0004] In existing elevator door operators, the closing distance between the two car doors is usually adjusted by moving the connecting structure of the car door on the drive belt. However, this adjustment is not convenient and precise, resulting in poor ease of adjusting the door gap. Therefore, an elevator door operator that is easier to adjust is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes an elevator door operator that is easy to adjust.

[0006] The technical solution adopted by this utility model to solve its technical problem is an elevator door operator that is easy to adjust, including a support frame, a PLC controller mounted on the support frame, a first guide rail and a second guide rail mounted on the support frame, a pulley group assembled in the first and second guide rails, a sliding frame mounted on the pulley group, a car door mounted on the sliding frame, and an adjustment component mounted on the car door. The adjustment component includes a connecting block, a moving block mounted on the connecting block, a guide plate mounted around the moving block, a moving groove formed in the guide plate, the moving block assembled in the moving groove, a first screw rotatably mounted on the inner wall of the moving groove, a first knob mounted on one end of the first screw, and millimeter-level engravings provided on the side wall of the first guide rail. The system features two car door top panels with mounting brackets containing slots. Each slot has a first threaded hole on its inner wall, and a mounting block is fitted within the slot. A pointer is mounted on the mounting block, which also has a second threaded hole. A second screw is fitted into the second threaded hole and mounted on the second screw, which in turn fits into the first threaded hole. A second knob is mounted on the second screw. By moving the car door horizontally via a moving block, the car door moves the pointer horizontally, allowing for fine-tuning of the pointer. This enables the pointer to quickly and accurately point to the desired scale, achieving precise adjustment of the car door position. This structure, with its millimeter-level scale and pointer, allows for intuitive adjustment of the door gap, reducing adjustment time and simplifying the adjustment process, thus improving the ease of adjusting the door gap.

[0007] Preferably, a first pulley and a second pulley are rotatably mounted on the support frame via a rotating shaft. A transmission belt is sleeved around the first and second pulleys, and the protruding teeth on the inner wall of the transmission belt mesh with the tooth grooves on the outer edges of the first and second pulleys. A stepper motor is mounted on the support frame via a base, and the output shaft of the stepper motor is fixedly connected to the rotating shaft of the first pulley. A first connecting frame and a second connecting frame are respectively mounted on two guide plates. The first and second connecting frames have four sets of threaded holes. A connecting assembly is mounted on the first and second connecting frames, and the connecting assembly includes a clamping plate. The clamping plate is fixedly connected to the first and second connecting frames respectively by bolts. By integrating the stepper motor, the first guide rail, the second guide rail, the PLC controller, and other structures into a rigid frame, i.e., the support frame, the first and second guide rails on it are parallelized before the elevator door operator is installed. The support frame is a pre-assembled frame, so parallelization is not required on-site after the elevator door operator is installed, which can reduce on-site adjustment time and improve the convenience of elevator door operator installation.

[0008] The advantages of this utility model are:

[0009] 1. This utility model uses a moving block to drive the car door to move horizontally, and the car door drives the pointer on it to move horizontally, realizing fine adjustment of the pointer. The pointer can be quickly and accurately pointed to the required scale, realizing precise adjustment of the car door position. This structure can intuitively adjust the door gap by setting millimeter-level scale lines and pointers, reducing adjustment time and making the adjustment steps convenient, which is beneficial to improving the convenience of adjusting the door gap.

[0010] 2. This utility model integrates the stepper motor, the first guide rail, the second guide rail, the PLC controller, and other structures into a rigid frame, namely the support frame. Before installing the elevator door operator, the first and second guide rails on it are parallelized. The support frame is a pre-assembled frame, so parallel calibration is not required on site after the elevator door operator is installed, which can reduce on-site adjustment time and improve the convenience of elevator door operator installation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the car door;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the guide plate;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the pointer;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the transmission belt.

[0017] In the diagram: 1. Support frame; 2. PLC controller; 3. First guide rail; 301. Second guide rail; 302. Pulley block; 303. Sliding frame; 4. Car door; 5. Connecting block; 501. Moving block; 502. Guide plate; 503. Moving groove; 504. First screw; 505. First knob; 6. Millimeter scale line; 601. Card seat; 602. Card slot; 603. First threaded hole; 604. Card block; 605. Pointer; 606. Second knob; 7. First pulley; 701. Second pulley; 702. Transmission belt; 703. Stepper motor; 8. First connecting frame; 801. Second connecting frame; 802. Clamping plate. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-4 As shown, an elevator door operator that is easy to adjust includes a support frame 1, a PLC controller 2 mounted on the support frame 1, a first guide rail 3 and a second guide rail 301 mounted on the support frame 1, a pulley assembly 302 assembled in the first guide rail 3 and the second guide rail 301, a sliding frame 303 mounted on the pulley assembly 302, a car door 4 mounted on the sliding frame 303, and an adjustment component mounted on the car door 4. The adjustment component includes a connecting block 5, a moving block 501 mounted on the connecting block 5, a guide plate 502 mounted around the moving block 501, a moving groove 503 formed in the guide plate 502, the moving block 501 being assembled in the moving groove 503, a first screw 504 rotatably mounted on the inner wall of the moving groove 503, a first knob 505 mounted on one end of the first screw 504, millimeter-level scale lines 6 provided on the side wall of the first guide rail 3, and a card seat 601 mounted on the top side of the two car doors 4, with a card slot 602 formed in the card seat 601. A first threaded hole 603 is provided on the wall, a locking block 604 is installed in the locking slot 602, a pointer 605 is installed on the locking block 604, a second threaded hole is provided on the locking block 604, a second screw is installed in the second threaded hole, the second screw is installed in the first threaded hole 603, and a second knob 606 is installed on the second screw. During operation, existing elevator door operators usually adjust the closing distance of the two car doors 4 by moving the connecting structure of the car door 4 on the transmission belt 702. However, it is difficult to make convenient and precise adjustments, resulting in poor convenience in adjusting the door gap. The elevator door operator is a mechanism responsible for opening and closing the elevator hall and car doors 4. When it receives the elevator opening and closing signal, the elevator door operator controls the stepper motor 703 to operate through its own control system, namely the PLC controller 2, and converts the torque generated by the stepper motor 703 into a force in a specific direction to close or open the car door 4.

[0020] With the first guide rail 3 and the second guide rail 301 arranged in parallel, the upper and lower pulley groups 302 of the car door 4 are respectively installed in the first guide rail 3 and the second guide rail 301, realizing the installation of the car door 4 with the first guide rail 3 and the second guide rail 301. The car door 4 can move within the first guide rail 3 and the second guide rail 301 through the pulley group 302, thereby realizing the opening and closing of the car door 4.

[0021] By using bolts to fix the first connecting frame 8 and the clamping plate 802 together, the first connecting frame 8 and the clamping plate 802 clamp and fix the upper part of the transmission belt 702, thus achieving a fixed connection between one car door 4 and the transmission belt 702. Then, by using bolts to fix the second connecting frame 801 and the clamping plate 802 together, the second connecting frame 801 and the clamping plate 802 clamp and fix the lower part of the transmission belt 702, thus achieving a fixed connection between the other car door 4 and the transmission belt 702. At this time, the two car doors 4 are in a closed state. Afterwards, the gap between the two car doors 4 needs to be precisely adjusted.

[0022] By engaging the locking blocks 604 on the two pointers 605 into the slots 602 of the mounting base 601, and then rotating the second knob 606 to screw the second screw on the locking blocks 604 into the slots 602 of the mounting base 601, a fixed connection between the pointers 605 and the mounting base 601 is achieved. At this time, the pointers 605 and the latching sidewall of the car door 4 are on the same plane; and the pointers 605 point to the millimeter scale line 6. The gap between the two car doors 4 needs to be adjusted to 4mm ± 0.5.

[0023] By rotating the first knob 505, the first screw 504 is driven to rotate. The first screw 504 drives the moving block 501 on it to move horizontally. The moving block 501 drives the car door 4 to move horizontally. The pulley group 302 of the car door 4 moves within the first guide rail 3 and the second guide rail 301, realizing the stable movement of the car door 4. The first screw 504 has self-locking property. When the thread helix angle is less than the friction angle, sliding friction will cause the first screw 504 to self-lock, preventing the moving block 501 from driving the first screw 504 to rotate in the opposite direction. The car door 4 drives the pointer 605 on it to move horizontally, realizing the fine adjustment of the pointer 605. The pointer 605 is quickly and accurately pointed to the required scale, realizing the precise adjustment of the position of the car door 4. This structure, by setting millimeter-level scale line 6 and pointer 605, can intuitively adjust the door gap, reduce adjustment time, and the adjustment steps are convenient, which is conducive to improving the convenience of adjusting the door gap.

[0024] Please see Figure 5As shown, a first pulley 7 and a second pulley 701 are rotatably mounted on the support frame 1 via a rotating shaft. A transmission belt 702 is sleeved around the first pulley 7 and the second pulley 701. The protruding teeth on the inner wall of the transmission belt 702 mesh with the tooth grooves on the outer edge of the first pulley 7 and the second pulley 701. A stepper motor 703 is mounted on the support frame 1 via a base. The output shaft of the stepper motor 703 is fixedly connected to the rotating shaft of the first pulley 7. A first connecting frame 8 and a second connecting frame 801 are respectively mounted on two guide plates 502. The first connecting frame 8 and the second connecting frame 801 have four sets of threaded holes. A connecting assembly is mounted on the first connecting frame 8 and the second connecting frame 801. The connecting assembly includes a clamping plate 802, which is fixedly connected to the first connecting frame 8 and the second connecting frame 801 by bolts. During operation, existing elevator door operators require on-site adjustments to the guide rails during installation. The assembly process requires parallel calibration, which makes the installation of the elevator door operator less convenient. The elevator door operator is a mechanism responsible for opening and closing the elevator hall and car doors 4. When it receives the elevator opening and closing signals, the elevator door operator controls the stepper motor 703 through its own control system, namely the PLC controller 2. The stepper motor 703 drives the first pulley 7 to rotate, the first pulley 7 drives the transmission belt 702 to rotate, and the transmission belt 702 drives the second pulley 701 to rotate, realizing the synchronous rotation of the first pulley 7 and the second pulley 701. When the transmission belt 702 rotates, the upper and lower parts of the transmission belt 702 will move synchronously relative to each other or in opposite directions, driving the first connecting frame 8 and the second connecting frame 801 to move synchronously relative to each other or in opposite directions. The first connecting frame 8 and the second connecting frame 801 drive the two car doors 4 to move synchronously relative to each other or in opposite directions, thereby realizing the closing and opening of the car doors 4.

[0025] In this structure, the stepper motor 703, the first guide rail 3, the second guide rail 301, the PLC controller 2, and other components are integrated into a rigid frame, namely the support frame 1. Before installing the elevator door operator, the first guide rail 3 and the second guide rail 301 on it are parallelized. The support frame 1 is a pre-assembled frame. When installing the elevator door operator, the support frame 1 is hoisted inside the elevator structure, realizing the overall hoisting of the elevator door operator. After installation, no parallel calibration is required on site, which can reduce on-site adjustment time and improve the convenience of elevator door operator installation.

[0026] Working principle: Existing elevator door operators typically adjust the closing distance between the two car doors 4 by moving the connecting structure of the car door 4 on the transmission belt 702. However, this adjustment is difficult to be convenient and precise, resulting in poor ease of adjusting the door gap. The elevator door operator, as a whole, is a mechanism responsible for opening and closing the elevator hall and car doors 4. When it receives an elevator opening / closing signal, the elevator door operator controls the stepper motor 703 through its built-in control system, namely the PLC controller 2, converting the torque generated by the stepper motor 703 into a force in a specific direction, thereby closing or opening the car door 4. The first guide rail 3 and the second guide rail 301 are arranged in parallel, and the upper and lower pulley groups 302 of the car door 4 are respectively installed within the first guide rail 3 and the second guide rail 301, realizing the installation of the car door 4 with the first guide rail 3 and the second guide rail 301. The car door 4 can move within the first guide rail 3 and the second guide rail 301 via the pulley groups 302, thereby realizing the opening and closing of the car door 4. Bolts are used to connect the first connecting... The first connecting frame 8 and clamping plate 802 are fixedly connected, clamping and fixing the upper part of the transmission belt 702, thus achieving a fixed connection between one car door 4 and the transmission belt 702. Then, bolts are used to fix the second connecting frame 801 and clamping plate 802, clamping and fixing the lower part of the transmission belt 702, thus achieving a fixed connection between the other car door 4 and the transmission belt 702. At this point, both car doors 4 are in a closed state. Afterwards, the two car doors need to be... The gap between the doors 4 needs to be precisely adjusted. By engaging the locking blocks 604 on the two pointers 605 into the slots 602 of the mounting base 601, and then rotating the second knob 606, the second screw on the locking block 604 is screwed into the slot 602 of the mounting base 601, thus achieving a fixed connection between the pointers 605 and the mounting base 601. At this time, the pointers 605 and the latching sidewall of the car door 4 are on the same plane, and the pointers 605 point to the millimeter-level scale line 6. The gap between the two car doors 4 needs to be adjusted to 4mm ± 0.5; By rotating the first knob 505, the first screw 504 is driven to rotate. The first screw 504 drives the moving block 501 on it to move horizontally. The moving block 501 drives the car door 4 to move horizontally. The pulley group 302 of the car door 4 moves within the first guide rail 3 and the second guide rail 301, realizing the stable movement of the car door 4. The first screw 504 has self-locking property. When the thread helix angle is less than the friction angle, sliding friction will cause the first screw 504 to self-lock, preventing the moving block 501 from driving the first screw 504 to rotate in the opposite direction. The car door 4 drives the pointer 605 on it to move horizontally, realizing the fine adjustment of the pointer 605. The pointer 605 is quickly and accurately pointed to the desired scale, achieving precise adjustment of the car door 4 position. This structure, with its millimeter-level scale line 6 and pointer 605, allows for intuitive adjustment of the door gap, reducing adjustment time and simplifying the adjustment process, thus improving the ease of adjusting the door gap. Existing elevator door operators require on-site assembly of the guide rails and parallel calibration during installation, resulting in poor installation convenience. The elevator door operator is a mechanism responsible for opening and closing the elevator hall and car doors 4. When it receives elevator opening or closing signals, the elevator door operator uses its built-in control... The system, namely the PLC controller 2, controls the operation of the stepper motor 703. The stepper motor 703 drives the first pulley 7 to rotate, the first pulley 7 drives the transmission belt 702 to rotate, and the transmission belt 702 drives the second pulley 701 to rotate, achieving synchronous rotation of the first pulley 7 and the second pulley 701. When the transmission belt 702 rotates, the upper and lower parts of the transmission belt 702 will move synchronously relative to each other or in opposite directions, driving the first connecting frame 8 and the second connecting frame 801 to move synchronously relative to each other or in opposite directions. The first connecting frame 8 and the second connecting frame 801 drive the two car doors 4 to move synchronously relative to each other or in opposite directions, thereby realizing... The car door 4 closes and opens. In this structure, the stepper motor 703, the first guide rail 3, the second guide rail 301, the PLC controller 2, and other components are integrated into a rigid frame, namely the support frame 1. Before installing the elevator door operator, the first guide rail 3 and the second guide rail 301 are aligned parallel to each other. The support frame 1 is a pre-assembled frame. During the installation of the elevator door operator, the support frame 1 is hoisted inside the elevator structure, achieving overall hoisting of the elevator door operator. Furthermore, no on-site parallel alignment is required after installation, reducing on-site adjustment time and improving the convenience of elevator door operator installation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An elevator door machine that facilitates adjustment, characterized by: The system includes a support frame (1), on which a PLC controller (2) is mounted. A first guide rail (3) and a second guide rail (301) are mounted on the support frame (1). A pulley block (302) is installed within the first guide rail (3) and the second guide rail (301). A sliding frame (303) is mounted on the pulley block (302). A car door (4) is mounted on the sliding frame (303). An adjustment assembly is installed on the car door (4). The adjustment assembly includes a connecting block (5), on which a moving block (501) is mounted. A guide plate (502) is mounted around the moving block (501). A moving groove (503) is provided in the guide plate (502). The moving block (501) is assembled in the moving groove (503). A first screw (504) is rotatably mounted on the inner wall of the moving groove (503). A first knob (505) is mounted on one end of the first screw (504). A millimeter-level scale line (6) is provided on the side wall of the first guide rail (3). A card seat (601) is installed on the top side of the two car doors (4). A card slot (602) is provided in the card seat (601). A first threaded hole (603) is provided on the inner wall of the card slot (602). A card block (604) is assembled in the card slot (602). A pointer (605) is mounted on the card block (604).

2. An elevator door machine convenient to adjust according to claim 1, characterized in that: The card block (604) has a second threaded hole, a second screw is installed in the second threaded hole, the second screw is installed in the first threaded hole (603), and a second knob (606) is installed on the second screw.

3. The door operator of claim 1, wherein: The support frame (1) is rotatably mounted with a first pulley (7) and a second pulley (701) via a rotating shaft. A transmission belt (702) is sleeved around the first pulley (7) and the second pulley (701). The protruding teeth on the inner wall of the transmission belt (702) mesh with the tooth grooves on the outer edge of the first pulley (7) and the second pulley (701).

4. The door operator of claim 1, wherein: A stepper motor (703) is mounted on the support frame (1) via a base, and the output shaft of the stepper motor (703) is fixedly connected to the rotating shaft of the first pulley (7).

5. The door operator of claim 1, wherein: The first connecting bracket (8) and the second connecting bracket (801) are respectively installed on the two guide plates (502), and four sets of threaded holes are opened on the first connecting bracket (8) and the second connecting bracket (801).

6. An elevator door machine convenient to adjust according to claim 5, characterized in that: A connecting assembly is installed on the first connecting frame (8) and the second connecting frame (801). The connecting assembly includes a clamp (802), which is fixedly connected to the first connecting frame (8) and the second connecting frame (801) by bolts.

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