Door opening and closing tool

Abstract

The door opening and closing tool comprises an automatic opening and closing structure arranged on the outer side of a door, the automatic opening and closing structure comprises a turbine lead screw lifting machine, a lifting machine base, a lifting machine supporting frame and a fixing support, the fixing support is arranged on the side, hinged to the door, of a wall, and the lifting machine supporting frame is arranged on the top of the fixing support. The two sides of the lifter base are rotationally connected with the lifter supporting frame, and the turbine lead screw lifter is arranged on the lifter base and freely rotates on the lifter supporting frame along with the lifter base. A lead screw of the turbine lead screw lifter extends out of the bottom of the lifter base and is hinged to the middle of the door, and the turbine lead screw lifter drives the lead screw to extend out or retract so as to drive the door to rotate to be closed or opened. The turbine lead screw lifter adjusts the angle in a self-adaptive mode through free rotation of the lifter base and the lifter supporting frame in the door rotating opening and closing process.

Description

Technical Field

[0001] This utility model relates to the field of door opening and closing fixtures, and in particular to a door opening and closing fixture. Background Technology

[0002] Basement doors are typically horizontally positioned and open by rotating on one side. Currently, the common practice is to install a hydraulic lift rod on one side of the basement door. To open the door, one either pulls it from the outside or pushes it from the inside, using the hydraulic lift rod for support. However, because the doors are heavy, both pulling and pushing are laborious, and the lifting force and speed of the hydraulic lift rod are uncontrollable, posing safety hazards. Furthermore, the significant weight the hydraulic lift rod bears affects its lifespan over time. Therefore, it is necessary to provide a door opening and closing fixture that saves manpower, improves reliability, and extends service life. Utility Model Content

[0003] This utility model addresses the problems and shortcomings of existing technologies by providing a novel door opening and closing fixture.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a door opening and closing fixture. The door is hinged to a wall on one side. The fixture includes an automatic opening and closing structure located on the outside of the door. The automatic opening and closing structure includes a screw jack, a jack base, a jack support frame, and a fixed bracket. The fixed bracket is located on the side of the wall where the door is hinged. The jack support frame is located on top of the fixed bracket. The jack base is rotatably connected to the jack support frame on both sides. The screw jack is mounted on the jack base and rotates freely with the jack base on the jack support frame. The screw of the screw jack extends from the bottom of the jack base and is hinged to the door in the middle. The screw jack extends or retracts the screw, thereby causing the door to rotate and close or open. During the door's rotation and opening / closing process, the screw jack adaptively adjusts its angle through the free rotation of the jack base and the jack support frame.

[0006] Preferably, the worm gear screw jack is connected to a motor and a reducer, and the motor, the reducer and the worm gear screw jack are connected in sequence. The motor drives the worm gear screw jack to extend or retract the screw.

[0007] Preferably, the lifting platform base is provided with a rotating shaft at both ends, and there are two lifting platform support frames, which are respectively provided on both sides of the lifting platform base. The top of the lifting platform support frame is provided with a circular rotating hole, and a bearing matching the rotating shaft is provided in the rotating hole, and the rotating shaft is provided in the bearing.

[0008] Preferably, a baffle is provided on the outer side of the rotating hole to prevent the bearing from disengaging from the rotating hole.

[0009] Preferably, the end of the lead screw that connects to the door is provided with a connector, and the door is provided with a connecting seat, wherein the connector and the connecting seat are hinged by a pin.

[0010] Preferably, the door includes a door frame and a door panel. The door frame is welded together from multiple horizontally and vertically arranged square steel bars. The door panel is fixed to the outside of the door frame, and the connecting seat is fixed to the part of the door panel where the horizontal square steel bars are arranged.

[0011] Preferably, it also includes a manual opening and closing structure disposed on the inside of the door. The manual opening and closing structure includes multiple hydraulic support rods, all of which are disposed on the side where the wall and the door are hinged. One end of each hydraulic support rod is hinged to the wall and the other end is hinged to the door.

[0012] Preferably, the wall is provided with a first mounting base, the door is provided with a second mounting base in the middle, one end of the hydraulic support rod is hinged to the first mounting base, and the other end is hinged to the second mounting base; the hydraulic support rod extends when the door is opened, and retracts when the door is closed.

[0013] The positive and progressive effects of this utility model are as follows:

[0014] This utility model discloses a door opening and closing fixture, including an automatic opening and closing structure disposed on the outside of the door. The automatic opening and closing structure includes a worm gear screw jack, a jack base, a jack support frame, and a fixed bracket. The fixed bracket is disposed on the side of the wall that is hinged to the door. The jack support frame is disposed on top of the fixed bracket. The jack base is rotatably connected to the jack support frame on both sides. The worm gear screw jack is disposed on the jack base and rotates freely on the jack support frame with the jack base. The screw of the worm gear screw jack extends from the bottom of the jack base and is hinged to the door in the middle. The worm gear screw jack drives the screw to extend or retract, thereby driving the door to rotate and close or open. During the door rotation opening and closing process, the worm gear screw jack adaptively adjusts the angle through the free rotation of the jack base and the jack support frame, realizing automatic opening and closing of the door, saving manpower, and making the lifting force and speed controllable during the door lifting process, improving reliability and extending service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the door opening and closing fixture used in this embodiment;

[0016] Figure 2 This is a schematic diagram of the automatic opening and closing structure installation in this embodiment;

[0017] Figure 3 This is a schematic diagram of the automatic opening and closing structure in this embodiment;

[0018] Figure 4 This is a schematic diagram of the automatic opening and closing structure installed from another angle in this embodiment;

[0019] Figure 5 This is a schematic diagram showing the installation of the door opening and closing fixture after removing the door panel during use in this embodiment;

[0020] Figure 6 This is a schematic diagram of the automatic opening and closing structure installed on the inside of the door in this embodiment;

[0021] Figure 7 This is a schematic diagram of the manual opening and closing structure in this embodiment.

[0022] In the picture:

[0023] 1-Automatic opening and closing structure; 11-Turbine screw jack; 111-Screw; 112-Connector; 113-Connecting seat; 114-Pin; 12-Jack jack base; 13-Jack jack support frame; 14-Fixed bracket; 15-Motor; 16-Reducer; 2-Manual opening and closing structure; 21-Hydraulic support rod; 22-First mounting seat; 23-Second mounting seat;

[0024] 200 - Wall; 300 - Door; 301 - Door frame; 302 - Door panel. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-7As shown, in this embodiment, the door 300 is hinged to the wall 200 on one side. The door opening and closing fixture includes an automatic opening and closing structure 1 disposed on the outside of the door 300. The automatic opening and closing structure 1 includes a screw jack 11, a jack base 12, a jack support frame 13, and a fixed bracket 14. The fixed bracket 14 is disposed on the side where the wall 200 is hinged to the door 300. The jack support frame 13 is disposed on the top of the fixed bracket 14. The jack base 12 is rotatably connected to the jack support frame 13 on both sides. The screw jack 11 is... On the elevator base 12, the worm gear screw jack 11 rotates freely on the elevator support frame 13 along with the elevator base 12; the screw 111 of the worm gear screw jack 11 extends from the bottom of the elevator base 12 and is hinged to the door 300 in the middle; the worm gear screw jack 11 drives the screw 111 to extend or retract, thereby driving the door 300 to rotate to close or open; during the rotation and opening / closing of the door 300, the worm gear screw jack 11 adaptively adjusts its angle through the free rotation of the elevator base 12 and the elevator support frame 13.

[0027] In some embodiments, the screw jack 11 is connected to a motor 15 and a reducer 16. The motor 15 and the reducer 16 are connected to the screw jack 11 in sequence. The motor 15 drives the screw jack 11 to extend or retract the screw 111. The lifting force and speed of the door 300 are adjusted through the motor 15 and the reducer 16, so as to achieve reliable control of the lifting and opening / closing process of the door 300.

[0028] In some embodiments, the lifting platform base 12 is provided with a rotating shaft 121 at both ends, and there are two lifting platform support frames 13. The two lifting platform support frames 13 are respectively provided on both sides of the lifting platform base 12. The top of the lifting platform support frame 13 is provided with a circular rotating hole, and a bearing 131 matching the rotating shaft 121 is provided in the rotating hole. The rotating shaft 121 is provided in the bearing 131.

[0029] In some embodiments, a baffle 132 is provided on the outer side of the rotating hole to prevent the bearing 131 from disengaging from the rotating hole.

[0030] In some embodiments, the end of the lead screw 111 connected to the door 300 is provided with a connector 112, and the door 300 is provided with a connector 113. The connector 112 and the connector 113 are hinged together by a pin 114.

[0031] In some embodiments, the door 300 includes a door frame 301 and a door panel 302. The door frame 301 is welded together from a plurality of horizontally and vertically arranged square steel bars. The door panel 302 is fixed to the outside of the door frame 301. The connecting seat 113 is fixed to the door panel 302 where the horizontal square steel bars are provided, making the fixation more secure and reliable.

[0032] In some embodiments, a manual opening and closing structure 2 is also included, located inside the door 300. The manual opening and closing structure 2 includes multiple hydraulic support rods 21, each located on the side where the wall 200 is hinged to the door 300. One end of each hydraulic support rod 21 is hinged to the wall 200, and the other end is hinged to the door 300. When the motor 15 is de-energized and in a free state, it cannot drive the screw jack 11 to extend or retract the screw 111, thus preventing automatic opening and closing of the door. In this case, the door 300 can be opened by pulling it from the outside or pushing it outwards from the inside, using the supporting force of the hydraulic support rods 21, for use in emergency situations.

[0033] In some embodiments, the wall 200 is provided with a first mounting base 22, and the door 300 is provided with a second mounting base 23 in the middle. One end of the hydraulic support rod 21 is hinged to the first mounting base 22, and the other end is hinged to the second mounting base 23. When the door 300 is opened, the hydraulic support rod 21 extends out, and when the door 300 is closed, the hydraulic support rod 21 retracts.

[0034] In summary, the door opening and closing fixture provided in this embodiment includes an automatic opening and closing structure 1 disposed on the outside of the door 300. The automatic opening and closing structure 1 includes a screw jack 11, a jack base 12, a jack support frame 13, and a fixed bracket 14. The fixed bracket 14 is disposed on the side of the wall 200 that is hinged to the door 300. The jack support frame 13 is disposed on the top of the fixed bracket 14. The jack base 12 is rotatably connected to the jack support frame 13 on both sides. The screw jack 11 is disposed on the jack base 12. The screw jack 11 moves with the jack base 12. The elevator support frame 13 rotates freely; the screw 111 of the worm gear screw jack 11 extends from the bottom of the elevator base 12 and is hinged to the door 300 in the middle. The worm gear screw jack 11 drives the screw 111 to extend or retract, thereby driving the door 300 to rotate and close or open; during the rotation and opening / closing of the door 300, the worm gear screw jack 11 adaptively adjusts the angle through the free rotation of the elevator base 12 and the elevator support frame 13, realizing the automatic opening and closing of the door 300, saving manpower, and the lifting force and speed of the door 300 during the lifting process are controllable, improving reliability and extending service life.

[0035] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A door opening and closing fixture, characterized in that, The door is hinged to the wall on one side. The door opening and closing fixture includes an automatic opening and closing structure located on the outside of the door. The automatic opening and closing structure includes a screw jack, a jack base, a jack support frame, and a fixed bracket. The fixed bracket is located on the side of the wall where the door is hinged. The jack support frame is located on top of the fixed bracket. The jack base is rotatably connected to the jack support frame on both sides. The screw jack is located on the jack base and rotates freely on the jack support frame along with the jack base. The screw of the screw jack extends from the bottom of the jack base and is hinged to the door in the middle. The screw jack drives the screw to extend or retract, thereby driving the door to rotate and close or open. During the door's rotation and opening / closing process, the screw jack adaptively adjusts its angle through the free rotation of the jack base and the jack support frame.

2. The door opening and closing fixture as described in claim 1, characterized in that, The worm gear screw jack is connected to a motor and a reducer. The motor, the reducer and the worm gear screw jack are connected in sequence. The motor drives the worm gear screw jack to extend or retract the screw.

3. The door opening and closing fixture as described in claim 1, characterized in that, The lifting platform base has a rotating shaft at both ends. There are two lifting platform support frames, which are respectively located on both sides of the lifting platform base. The top of the lifting platform support frame has a circular rotating hole, and a bearing matching the rotating shaft is installed in the rotating hole. The rotating shaft is installed in the bearing.

4. The door opening and closing fixture as described in claim 3, characterized in that, A baffle is provided on the outside of the rotating hole to prevent the bearing from disengaging from the rotating hole.

5. The door opening and closing fixture as described in claim 1, characterized in that, The end of the lead screw that connects to the door is provided with a connector, and the door is provided with a connecting seat. The connector and the connecting seat are hinged together by a pin.

6. The door opening and closing fixture as described in claim 5, characterized in that, The door includes a door frame and a door panel. The door frame is welded together from multiple horizontally and vertically arranged square steel bars. The door panel is fixed to the outside of the door frame, and the connecting seat is fixed to the part of the door panel where the horizontal square steel bars are arranged.

7. The door opening and closing fixture as described in claim 1, characterized in that, It also includes a manual opening and closing structure located on the inside of the door. The manual opening and closing structure includes multiple hydraulic support rods, all of which are located on the side where the wall and the door are hinged. One end of each hydraulic support rod is hinged to the wall, and the other end is hinged to the door.

8. The door opening and closing fixture as described in claim 7, characterized in that, The wall is provided with a first mounting base, and the door is provided with a second mounting base in the middle. One end of the hydraulic support rod is hinged to the first mounting base, and the other end is hinged to the second mounting base. When the door is opened, the hydraulic support rod extends, and when the door is closed, the hydraulic support rod retracts.

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