A large electric suction device for folding doors and windows

Abstract

This utility model discloses a large-scale electric suction device for folding doors and windows, including a mounting base and a cover. The mounting base is equipped with a motor, a worm gear reducer, and a motor mounting seat. The motor and worm gear reducer are assembled and installed at one end of the motor mounting seat. A sensor mounting seat is installed at the other end of the motor mounting seat, and a sensor is installed on the sensor mounting seat. The sensor is electrically connected to the motor. An eccentric locking cam is installed at the output end of the worm gear reducer, and a latch passes through the eccentric locking cam. The motor and worm gear reducer drive the eccentric locking cam to rotate. The cover covers the mounting base, and the motor, worm gear reducer, motor mounting seat, and eccentric locking cam are located inside the cover.

Description

Technical Field

[0001] This utility model belongs to the field of door and window equipment technology, specifically relating to a large folding door and window electric suction device. Background Technology

[0002] Currently, door closers are divided into electric magnetic door closers and mechanical hydraulic door closers. Electric magnetic door closers use the magnetic force generated by an energized coil to attract the closing door to the door frame, locking it after it is fully closed. They are commonly used in access control systems. Existing automatic door closers, during the closing process, control the closing speed of the door at the final stage due to the throttling effect of the hydraulic oil by a throttle valve, thus providing a buffer effect. Simultaneously, the accumulated elastic potential energy automatically and completely closes the door. Currently, existing door closer devices are relatively large, provide relatively low power, and only have a pull-in closing function, lacking an outward closing function.

[0003] Existing equipment is complex in structure, cumbersome to operate, and costly to manufacture. This is particularly true for large folding doors and windows (each panel measuring 4 meters by 1.4 meters), where the two aluminum alloy glass panels fold vertically. Opening and closing requires an auxiliary force before the main lifting force intervenes to slightly push and pull the folding doors and windows in, but this is ineffective. Furthermore, effective control and adjustment of the angle are lacking when the folding doors and windows rotate. Utility Model Content

[0004] The purpose of this invention is to solve the above problems and provide a large folding door and window electric suction device that is simple in structure, easy to use, highly safe, and has precise angle control.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a large folding door and window electric suction device, including a mounting base and a cover. The mounting base is equipped with a motor, a worm gear reducer and a motor mounting seat. The motor and worm gear reducer are assembled and installed at one end of the motor mounting seat. A sensor mounting seat is installed at the other end of the motor mounting base, and a sensor is installed on the sensor mounting seat. The sensor is electrically connected to the motor. An eccentric locking groove cam is installed at the output end of the worm gear reducer. A lock is passed through the eccentric locking groove cam. The motor and worm gear reducer drive the eccentric locking groove cam to rotate. The cover is placed on the mounting base, and the motor, worm gear reducer, motor mounting seat and eccentric locking groove cam are located inside the cover.

[0006] Preferably, the eccentric locking groove cam is an eccentric cam structure, and the eccentric locking groove cam is provided with a cam through groove; the cross section of the cam through groove is arc-shaped, and the opening end of the cam through groove is connected to the edge of the eccentric locking groove cam to form a groove.

[0007] Preferably, the latch includes a latch base plate and a latch connecting rod, the latch connecting rod is U-shaped, and both ends of the latch connecting rod are fixedly connected to the latch base plate; the latch base plate is a plate structure, the cross-section of the latch base plate is U-shaped, and connecting screws are provided on the latch base plate.

[0008] Preferably, the number of connecting screws is four, and the line connecting the four connecting screws is distributed in a rectangular shape.

[0009] Preferably, the number of sensors is two, which are spaced apart on the sensor mounting base.

[0010] Preferably, the cover is a hollow cuboid structure with an open bottom, and the cover is connected to the mounting base by screws.

[0011] Preferably, the sensor is equipped with a contact switch, which is electrically connected to the sensor.

[0012] The beneficial effects of this utility model are:

[0013] 1. The electric suction device for large folding doors and windows provided by this utility model cleverly realizes the push-out at the initial opening stage and the suction and locking at the closing end of the heavy folding doors and windows through the forward and reverse rotation of the eccentric locking groove cam. Through the logical triggering of the cam and the suction and push-out contacts, the active motor and the electric suction device are effectively linked, and the safety is greatly guaranteed, thus meeting the design and use requirements of the product.

[0014] 2. This utility model has a simple structure, does not require high-precision processing technology, has low manufacturing cost, and is easy to install and debug, which greatly satisfies the realization of special functions.

[0015] 3. This utility model achieves high torque output in a small size and precise control of rotation angle. It employs a combination of a servo motor and a worm gear, ensuring load-bearing capacity and logic control, while also improving overall performance and cost-effectiveness. Furthermore, numerous structural reinforcements have been implemented, greatly facilitating assembly and debugging. The addition of the worm gear transmission makes the pushing and pulling actions stable and effortless. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a large folding door and window electric suction device according to this utility model;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 This is a schematic diagram of the ejection state of this utility model;

[0019] Figure 4 This is a schematic diagram of the attraction state of this utility model.

[0020] Description of the reference numerals: 1, mounting base; 2, housing cover; 10, motor; 11, worm gear reducer; 12, motor mounting base; 13, sensor mounting base; 14, sensor; 15, eccentric lock groove cam; 16, latch; 141, contact switch; 150, cam through groove; 160, latch bottom plate; 161, latch connecting rod; 162, connecting screw. Specific embodiments

[0021] The following further describes the present utility model in conjunction with the drawings and specific embodiments:

[0022] As Figures 1 to 4 shown, a large folding door and window electric suction device provided by the present utility model includes a mounting base 1 and a housing cover 2. A motor 10, a worm gear reducer 11 and a motor mounting base 12 are provided on the mounting base 1. After the motor 10 and the worm gear reducer 11 are assembled, they are installed at one end of the motor mounting base 12. A sensor mounting base 13 is installed at the other end of the motor mounting base 12, and a sensor 14 is installed on the sensor mounting base 13. The sensor 14 is electrically connected to the motor 10. An eccentric lock groove cam 15 is installed at the output end of the worm gear reducer 11, and a latch 16 is inserted through the eccentric lock groove cam 15. The motor 10 and the worm gear reducer 11 drive the eccentric lock groove cam 15 to rotate. The housing cover 2 covers the mounting base 1, and the motor 10, the worm gear reducer 11, the motor mounting base 12 and the eccentric lock groove cam 15 are located inside the housing cover 2.

[0023] The eccentric lock groove cam 15 is an eccentric cam structure. A cam through groove 150 is provided on the eccentric lock groove cam 15, and the cam through groove 150 is an eccentric groove. The cross-section of the cam through groove 150 is arc-shaped, and the opening end of the cam through groove 150 is connected to the edge of the eccentric lock groove cam 15 to form a notch.

[0024] In this embodiment, the output end of the worm gear reducer 11 is connected to the eccentric lock groove cam 15 by a bolt. The bolt passes through the center of the eccentric lock groove cam 15 and is threadedly connected to the output end of the worm gear reducer 11. The worm gear reducer 11 is an existing mature worm and worm gear reducer device with the model number 5840 - 42HD48. The motor 10 is an existing servo motor.

[0025] The latch 16 includes a latch bottom plate 160 and a latch connecting rod 161. The latch connecting rod 161 is in a "U" shape. The two ends of the latch connecting rod 161 are fixedly connected to the latch bottom plate 160, and the latch connecting rod 161 and the latch bottom plate 160 are in a middle ring shape. The latch bottom plate 160 is a plate-like structure, the cross-section of the latch bottom plate 160 is in a "ji" shape, and a connecting screw 162 is inserted through the latch bottom plate 160.

[0026] There are four connecting screws 162, and the line connecting the four connecting screws is distributed in a rectangular shape. In actual use, the connecting screws 162 are connected to the existing door frame.

[0027] Two sensors 14 are spaced apart on the sensor mounting base 13. Each sensor 14 is equipped with a contact switch 141, which is electrically connected to the sensor 14. In this invention, the contact switch 141 consists of an engaging contact switch and an disengaging contact switch, which control the operation of the motor 10 via the sensor 14. In this embodiment, the engaging contact switch is located above the disengaging contact switch. The contact switch 141 is a prior art device, model KW11-3Z-E.

[0028] The cover 2 is a hollow cuboid structure with an open bottom. The cover 2 is connected to the mounting base 1 by screws.

[0029] In use, the installation positions of the mounting base 1 and the latch 16 are determined, and corresponding points are marked on the existing equipment. First, the motor mounting base 12 and the worm gear reducer 11 are assembled and then installed together on the mounting base 1. Next, the sensor mounting base 13 and the eccentric locking groove cam 15 are installed, thus completing the main assembly. The motor 10 is started, aligning the groove of the eccentric locking groove cam 15 with the central through hole of the latch 16. The position of the engaging contact switch is then adjusted so that its contact is pressed by the eccentric locking groove cam 15. After this, the motor 10 is started again. Note that the motor 10 will only rotate counterclockwise at this point. After rotating the motor 10 90 degrees, the latch 16 is located at the bottom of the eccentric groove, and the engaging contact switch is disengaged. The position of the disengaging contact switch is then adjusted so that its contact is pressed by the cam, at which point the door and window are in a closed and locked state. The entire installation and debugging process is now complete. The assembly process is simple, and there are few interference factors during debugging.

[0030] This invention uses a mounting base 1, which is fixedly connected to the side rail of a folding door / window, to mount a motor 10 and a worm gear reducer 11. A sensor mounting base 13 is then fixed to the other side of the reducer 11, providing a mounting foundation for the installation and adjustment of the contact switch 141. An eccentric locking cam 15 is inserted into the output shaft end of the worm gear reducer 11, and is radially and axially locked using shaft locking bolts and end-face locking bolts. A latch 16 is installed on the door / window frame. As the door / window closes, the latch ring inserts into the eccentric groove, triggering the motor 10 to stop. When the door / window is closed, the latch 16 slowly inserts into the eccentric groove, and the eccentric locking cam 15 rotates counterclockwise (and can only rotate counterclockwise). Under the action of the eccentric groove, the door is pulled into the closed state and locked. When the door / window is closed, the eccentric locking cam 15 can only rotate clockwise. At this time, under the action of the eccentric groove, the door is pushed out, realizing the lifting and opening of the existing folding door / window.

[0031] This invention cleverly achieves the initial push-out stage and the closing locking stage of heavy-duty folding doors and windows through the forward and reverse rotation of the eccentric locking cam 15. The cam, along with the closing and push-out contacts, controls the operation of the motor 10, greatly ensuring safety and meeting the design and usage requirements of the product. This invention has a simple structure, requires no high-precision processing, has low manufacturing costs, and is easy to install and debug, greatly satisfying the realization of its functions. This invention meets the requirements of small size, high torque output, and precise angle control. The combination of a servo motor and worm gear ensures load-bearing capacity and logic control, while also improving overall performance and cost-effectiveness. Furthermore, numerous structural reinforcements greatly facilitate assembly and debugging. The addition of worm gear transmission makes the push-out and closing actions stable and effortless.

[0032] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A large-scale electric suction device for folding doors and windows, characterized in that: The device includes a mounting base (1) and a cover (2). The mounting base (1) is equipped with a motor (10), a worm gear reducer (11) and a motor mounting seat (12). The motor (10) and the worm gear reducer (11) are assembled and installed at one end of the motor mounting seat (12). The other end of the motor mounting seat (12) is equipped with a sensor mounting seat (13). A sensor (14) is installed on the sensor mounting seat (13). The sensor (14) is electrically connected to the motor (10). An eccentric locking groove cam (15) is installed at the output end of the worm gear reducer (11). A latch (16) is provided on the eccentric locking groove cam (15). The motor (10) and the worm gear reducer (11) drive the eccentric locking groove cam (15) to rotate. The cover (2) covers the mounting base (1). The motor (10), the worm gear reducer (11), the motor mounting seat (12) and the eccentric locking groove cam (15) are located inside the cover (2).

2. A large folding door and window electric suction device according to claim 1, characterized in that: The eccentric locking groove cam (15) is an eccentric cam structure, and the eccentric locking groove cam (15) is provided with a cam through groove (150); the cross section of the cam through groove (150) is arc-shaped, and the opening end of the cam through groove (150) is connected to the edge of the eccentric locking groove cam (15) to form a groove.

3. A large folding door and window electric suction device according to claim 1, characterized in that: The latch (16) includes a latch base plate (160) and a latch connecting rod (161). The latch connecting rod (161) is U-shaped, and both ends of the latch connecting rod (161) are fixedly connected to the latch base plate (160). The latch base plate (160) is a plate structure, and the cross-section of the latch base plate (160) is U-shaped. A connecting screw (162) is provided on the latch base plate (160).

4. A large folding door and window electric suction device according to claim 3, characterized in that: The number of connecting screws (162) is four, and the line connecting the four connecting screws is distributed in a rectangular shape.

5. A large folding door and window electric suction device according to claim 1, characterized in that: The number of sensors (14) is two, which are spaced apart on the sensor mounting base (13).

6. A large folding door and window electric suction device according to claim 1, characterized in that: The cover (2) is a hollow cuboid structure with an open bottom. The cover (2) is connected to the mounting base (1) by screws.

7. A large folding door and window electric suction device according to claim 1, characterized in that: The sensor (14) is provided with a contact switch (141), and the contact switch (141) is electrically connected to the sensor (14).

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