Elevator door opener belt tensioning early warning device

Abstract

The utility model relates to the technical field of elevator door openers, in particular to a belt tensioning early warning device of an elevator door opener, which comprises a door opener, a control wheel, a motor frame, a driving motor, a belt wheel, a belt and an early warning device, the control wheel is movably connected to the inner side of the door opener, and the motor frame is fixedly arranged at the top of the door opener. The driving motor is installed at the top of the motor frame, the belt wheel is fixedly connected with the output end of the driving motor, the belt is arranged outside the belt wheel and the control wheel in a sleeving mode, and the belt tensioning early warning device of the elevator door opener is mainly installed on the outer side of the belt at the output end of the motor of the elevator door opener. The tensioning effect on the belt is guaranteed, the contact effect of the belt, the control wheel and the belt wheel is guaranteed, and the compressed spring in the tensioning mechanism is slowly released along with loosening and stretching of the belt, so that the contact rod makes contact with the contact base, the alarm device is triggered, the warning effect is effectively achieved, the belt is reminded to be replaced in time, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator door opener technology, and in particular to an elevator door opener belt tension warning device. 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 opening or closing signal from the elevator, the door operator controls the door opening motor through its built-in control system, converting the torque generated by the motor into a force in a specific direction to close or open the door. When the force preventing the door from closing exceeds 150N, the door operator automatically stops closing the door and opens it in the opposite direction, providing a certain degree of door closing protection.

[0003] Elevator door openers mainly control the opening and closing of elevator doors by driving a belt with a motor. After long-term use, the drive belt may become loose and slip. Ordinary elevators cannot provide timely warnings about belt loosening. Loose belts pose certain safety hazards. Therefore, a belt tensioning device is needed to ensure the driving effect of the belt and to provide timely warnings when the belt ages or becomes loose. Utility Model Content

[0004] This utility model addresses the deficiencies in the existing technology by providing an elevator door opener belt tension warning device.

[0005] This utility model is achieved through the following technical solution:

[0006] An elevator door opener belt tension warning device includes a door opener, a control wheel, a motor frame, a drive motor, a pulley, a belt, and a warning device. The control wheel is movably connected to the inside of the door opener. The motor frame is fixedly mounted on the top of the door opener. The drive motor is mounted on the top of the motor frame. The pulley is fixedly connected to the output end of the drive motor. The belt is sleeved on the outside of the pulley and the control wheel. The warning device is mounted on one side of the motor frame. The warning device includes a connecting frame, a mounting plate, a contact seat, and a tensioning mechanism. The mounting plate is fixedly mounted on one end of the connecting frame. The contact seat is fixedly mounted on the outside of the mounting plate. The tensioning mechanism is mounted on the outer edge of the connecting frame.

[0007] In a preferred embodiment of this utility model, the tensioning mechanism includes a connecting block, a pressure roller frame, a locking shaft, a spring, a pressure roller, a mounting tube, and a contact rod. The connecting block is fixed to the mounting plate. The pressure roller frame is sleeved on the outside of one end of the connecting block. The locking shaft is fixedly disposed inside one end of the pressure roller frame. The spring is sleeved on the outside of the locking shaft. The pressure roller is movably connected to the inside of one end of the pressure roller frame. The mounting tube is fixedly disposed on the outside of the pressure roller frame. The contact rod is movably connected to the mounting tube.

[0008] The tensioning mechanism is mainly used to control the belt. While ensuring effective contact between the belt and the pulley and control wheel, it further ensures the transmission effect of the motor output and better controls the operation of the gate opener through the control wheel.

[0009] In a preferred embodiment of this utility model, the surface of the contact rod is provided with threads, and one end of the mounting tube is provided with a threaded hole that mates with it.

[0010] By rotating the contact rod inside the mounting tube, the distance from the end of the contact rod to the contact seat is controlled, thereby effectively controlling the compression length of the belt and providing an effective warning when the belt becomes elongated and loose after prolonged use.

[0011] In a preferred embodiment of this utility model, the surface of the pressure roller is provided with a groove that cooperates with the belt, and the pressure roller is locked to the outside of the belt.

[0012] In a preferred embodiment of the present invention, the surface of the mounting plate is provided with mounting holes, and one end of the connecting block is provided with a slot that mates with the mounting plate. After the slot at one end of the connecting block is engaged with the outside of the mounting plate, it is fixed to the mounting plate by screws.

[0013] The mounting plate has evenly spaced mounting holes so that the tensioning mechanism can select the appropriate mounting hole for installation according to the required installation position.

[0014] In a preferred embodiment of the present invention, a limiting hole is provided at one end of the connecting block, and one end of the locking shaft passes through and extends into the limiting hole at one end of the connecting block. A spring is disposed in the limiting hole at one end of the connecting block.

[0015] The beneficial effects of this utility model are:

[0016] The elevator door opener belt tension warning device is mainly installed on the outside of the belt at the output end of the elevator door opener motor. By applying pressure from the outside of the belt inward, it ensures the belt tension and the contact between the belt and the control wheel and pulley. As the belt loosens and stretches, the compressed spring inside the tensioning mechanism slowly releases, causing the contact rod to contact the contact seat and triggering the alarm device. This effectively serves as a warning, reminding people to replace the belt in time and improving safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the elevator door opener belt tensioning early warning device of this utility model.

[0018] Figure 2 This is a schematic diagram of the early warning device structure of the elevator door opener belt tension early warning device of this utility model;

[0019] Figure 3This is a schematic diagram of the tensioning mechanism of the elevator door opener belt tensioning early warning device of this utility model.

[0020] In the diagram: 1. Door opener; 2. Control wheel; 3. Motor frame; 4. Drive motor; 5. Pulley; 6. Belt; 7. Warning device; 71. Connecting frame; 72. Mounting plate; 73. Contact seat; 74. Tensioning mechanism; 741. Connecting block; 742. Pressure roller frame; 743. Shaft; 744. Spring; 745. Pressure roller; 746. Mounting tube; 747. Contact rod. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0022] like Figure 1-3 The elevator door opener belt tension warning device shown includes a door opener 1, a control wheel 2, a motor frame 3, a drive motor 4, a pulley 5, a belt 6, and a warning device 7. The control wheel 2 is movably connected to the inside of the door opener 1. The motor frame 3 is fixedly installed on the top of the door opener 1. The drive motor 4 is installed on the top of the motor frame 3. The pulley 5 is fixedly connected to the output end of the drive motor 4. The belt 6 is sleeved on the outside of the pulley 5 and the control wheel 2. The warning device 7 is installed on one side of the motor frame 3. The warning device 7 includes a connecting frame 71, a mounting plate 72, a contact seat 73, and a tensioning mechanism 74. The mounting plate 72 is fixedly installed at one end of the connecting frame 71. The contact seat 73 is fixedly installed on the outside of the mounting plate 72. The tensioning mechanism 74 is installed on the outer edge of the connecting frame 71.

[0023] Specifically, the tensioning mechanism 74 includes a connecting block 741, a pressure roller frame 742, a retaining shaft 743, a spring 744, a pressure roller 745, a mounting tube 746, and a contact rod 747. The connecting block 741 is fixed to the mounting plate 72. The pressure roller frame 742 is sleeved on the outside of one end of the connecting block 741. The retaining shaft 743 is fixedly installed inside one end of the pressure roller frame 742. The spring 744 is sleeved on the outside of the retaining shaft 743. The pressure roller 745 is movably connected to the inside of one end of the pressure roller frame 742. The mounting tube 746 is fixedly installed on the outside of the pressure roller frame 742. The contact rod 747 is movably connected to the mounting tube 746. The surface of the contact rod 747... The mounting tube 746 has a threaded hole at one end, which mates with the threaded hole. The pressure roller 745 has a groove on its surface that mates with the belt 6. The pressure roller 745 is locked to the outside of the belt 6. The mounting plate 72 has a mounting hole on its surface. The connecting block 741 has a slot at one end that mates with the mounting plate 72. After the slot at one end of the connecting block 741 is locked to the outside of the mounting plate 72, it is fixed to the mounting plate 72 with screws. The connecting block 741 has a limit hole at one end. The locking shaft 743 passes through and extends into the limit hole at one end of the connecting block 741. The spring 744 is set in the limit hole at one end of the connecting block 741.

[0024] In this embodiment, the belt 6 is sleeved on the outside of the pulley 5 and the control wheel 2. Driven by the drive motor 4, the pulley 5 rotates, and the control wheel 2 rotates under the action of the belt 6, thereby the door opener 1 controls the opening and closing of the elevator door. The connecting frame 71 is fixed to one side of the motor frame 3 with bolts. Then, according to the position of the belt 6, the connecting block 741 is installed at the appropriate mounting hole on the surface of the mounting plate 72. After the pressure wheel 745 is pressed from the outside to the inside and clamped on the outside of the belt 6, it is movably connected to the pressure wheel frame 742 by the pin. At this time, the spring 744 inside the connecting block 741 is in a compressed state.

[0025] Furthermore, the contact rod 747 is rotated within the mounting tube 746 to maintain a suitable distance between the end of the contact rod 747 and the contact seat 73. This distance is strictly controlled based on the elongation of the belt 6. During use, the pressure roller 745, under the action of the spring 744, consistently provides pressure from the outside to the inside to the belt 6, ensuring effective contact between the belt 6 and the pulley 5 and control wheel 2, and maintaining the belt 6 in a taut state. With prolonged use, the belt 6 ages and elongates, and the spring 744 gradually releases as the belt 6 elongates. During this process, the pressure roller frame 742 moves backward, causing the contact rod 747 to move backward until the end of the contact rod 747 contacts the contact seat 73, triggering a signal to provide an alert to the elevator, reminding staff to maintain and replace the belt 6 in a timely manner, effectively improving the safety of the elevator.

[0026] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0027] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An elevator door opener belt tensioning early warning device, comprising an opener (1), a control wheel (2), a motor frame (3), a drive motor (4), a pulley (5), a belt (6) and an early warning device (7), characterized in that: The control wheel (2) is movably connected to the inside of the door opener (1), the motor frame (3) is fixedly arranged on the top of the door opener (1), the driving motor (4) is installed on the top of the motor frame (3), the belt wheel (5) is fixedly connected with the output end of the driving motor (4), the belt (6) is sleeved on the outside of the belt wheel (5) and the control wheel (2), and the early warning device (7) is installed on one side of the motor frame (3). The early warning device (7) comprises a connecting frame (71), a mounting disc (72), a contact seat (73) and a tensioning mechanism (74), the mounting disc (72) is fixedly arranged on one end of the connecting frame (71), the contact seat (73) is fixedly arranged on the outside of the mounting disc (72), and the tensioning mechanism (74) is installed on the outer edge of the connecting frame (71).

2. The elevator door operator belt tension early warning device of claim 1, wherein: The tensioning mechanism (74) comprises a connecting clamping block (741), a pressing wheel frame (742), a clamping shaft (743), a spring (744), a pressing wheel (745), a mounting pipe (746) and a contact rod (747), the connecting clamping block (741) is fixed with the mounting disc (72), the pressing wheel frame (742) is sleeved on the outside of one end of the connecting clamping block (741), the clamping shaft (743) is fixedly arranged on the inside of one end of the pressing wheel frame (742), the spring (744) is sleeved on the outside of the clamping shaft (743), the pressing wheel (745) is movably connected with the inside of one end of the pressing wheel frame (742), the mounting pipe (746) is fixedly arranged on the outside of the pressing wheel frame (742), and the contact rod (747) is movably connected with the mounting pipe (746).

3. The elevator door operator belt tension early warning device of claim 2, wherein: The surface of the contact rod (747) is provided with threads, and one end of the mounting pipe (746) is provided with a threaded hole matched with the threads.

4. The elevator door operator belt tension early warning device of claim 2, wherein: The surface of the pressing wheel (745) is provided with a groove matched with the belt (6), and the pressing wheel (745) is clamped on the outside of the belt (6).

5. The elevator door operator belt tension early warning device of claim 2, wherein: The surface of the mounting disc (72) is provided with a mounting hole, one end of the connecting clamping block (741) is provided with a slot matched with the mounting disc (72), and the slot of one end of the connecting clamping block (741) is clamped on the outside of the mounting disc (72) and fixed with the mounting disc (72) through screws.

6. The elevator door operator belt tension early warning device of claim 2, wherein: One end of the connecting clamping block (741) is provided with a limiting clamping hole, one end of the clamping shaft (743) penetrates and extends into the limiting clamping hole of one end of the connecting clamping block (741), and the spring (744) is arranged in the limiting clamping hole of one end of the connecting clamping block (741).

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