Door stopping device

Abstract

A door stopping device is composed of a door frame assembly, a locking assembly and a door handle assembly. The door plate releasing, door opening and closing and door stopping are achieved only through one action of door opening and closing, operation is easy, and the door stopping device is not limited by ground conditions and is wide in application range. A novel one-way bent chain is designed in the door stop device, and the chain is only composed of three parts, and is simple in structure and reliable in work.

Description

Technical Field

[0001] The invention relates to a door stopper and belongs to the technical field of mechanical design and manufacturing. Background Art

[0002] The door stopper, also called the door positioning device, is a device that can stop the door at any angle and withstand a certain amount of external force. At present, the commonly used door stoppers are generally installed at the bottom of the door leaf, and the door stop function is realized by the friction between the door stopper and the ground. Therefore, the requirements for the ground are relatively high. It cannot be used when the distance between the ground and the door is large or the ground is inclined. In addition, in the process of stopping and releasing the door, people need to add extra actions (such as stepping on it with their feet), which brings unnecessary trouble. It can be seen that the existing door stoppers are inconvenient to operate and have limited application scenarios. Summary of the invention

[0003] In order to solve the problems of inconvenient operation and limited application scenarios of existing door stoppers, the present invention provides a door stopper which not only has no requirements on the ground, but also the actions of stopping and releasing the door are completed in one go with the action of opening and closing the door, without the need for adding additional actions.

[0004] The technical solution adopted by the present invention to solve the technical problem is: Figure 1 As shown, the door stopper is composed of three major parts: a door frame assembly, a locking assembly and a door handle assembly.

[0005] The door frame assembly is composed of a door frame connecting frame (2), a chain end (3), a shaft a (4), and a one-way bending chain (12). The door frame connecting frame (2) is fixed to the door frame (1) with screws and is in a "C" shape. A vertical hole is machined in the middle and is interference-fitted with the shaft a (4). The shaft a (4) is a cylinder. The chain end (3) is as shown in FIG. Figure 7 As shown, it is a fork frame type part, with a vertical hole on the left end, a vertical groove for installing a one-way bending chain (12) on the right end and a horizontal hole running through the front and back, and a vertical plane directly above the hole is called chain shoulder a (21). The vertical hole on the left end of the chain end (3) has a clearance fit with the shaft a (4), and is installed inside the door frame connecting frame (2) through the shaft a (4). The horizontal hole on the right end has an interference fit with the chain pin (20), and is hinged to the one-way bending chain (12) through the chain pin (20). The chain shoulder a (21) cooperates with the chain shoulder b (22) of the one-way bending chain (12) so that the one-way bending chain (12) can only bend downward relative to the chain end (3). As shown Figure 4 Figure 5As shown, the one-way bending chain (12) is a chain that can only bend in one direction but not in another direction (in this patent, it can only bend downward but not upward). The maximum angle between two adjacent chain links is 180 degrees. Therefore, when it is stretched into a straight line, it can withstand both tension and pressure in the length direction. The one-way bending chain (12) is composed of a chain link (18), a sleeve (19) and a chain pin (20). Figure 2 Figure 3 As shown, the chain link (18) is formed by stamping a steel plate, and the overall shape is an "n" shape. Figure 2 As shown, there is a chain pin hole at each end, and a vertical plane is a chain shoulder b (22) just above the hole axis. The chain pin (20) is a cylindrical pin, which has an interference fit with the sleeve (19) and a clearance fit with the chain link (18). The sleeve (19) is a cylinder with a round hole in the middle. Figure 4 As shown, two adjacent chain links (18) are hinged to each other through a chain pin (20), and a sleeve (19) is installed in the middle of the chain link (18) to axially position the chain pin (20). After the chain is straightened, the chain shoulders b (22) of the adjacent chain links (18) contact each other, so that the maximum angle between the two adjacent chain links (18) is 180 degrees, that is, one-way bending.

[0006] like Figure 1 As shown, the locking assembly is installed inside the door panel (the door panel is a hollow structure surrounded by steel plates) and is composed of a return spring b (13), a locking pin (14), a locking frame (15), a door panel connecting frame (16), and a T-shaped shaft (17). The door panel connecting frame (16) is fixed to the steel plate on the door panel by screws, and has a vertical countersunk hole in the middle thereof, which is clearance-matched with the T-shaped shaft (17), and its lower surface is in contact with the upper surface of the locking frame (15). The locking frame (15) is hinged to the door panel connecting frame (16) through a T-shaped shaft (17) and can swing around the T-shaped shaft (17). There is a 90-degree arc channel in the middle of the locking frame. One end of the channel is in a horizontal position. When the door panel is closed, its opening faces the shaft a (4) and the other end opens downward. The one-way bending chain (12) passes through the channel. Below the channel, there is a vertical locking pin hole, in which a locking pin (14) is installed. Below the locking pin (14), a return spring b (13) is installed. The T-shaped shaft (17) is a stepped shaft with a thread at the lower end, which is connected to the screw hole on the upper surface of the locking frame (15). The locking pin (14) is a cylindrical pin, the lower end of which is connected to the "human" shaped pull wire (11), and the upper end is inserted into the one-way bending chain (12) to play a locking role.

[0007] like Figure 1As shown, the door handle assembly is installed inside the door panel and consists of a door handle (6), a return spring a (7), a handle fixing frame (8), a return piston (9), a door handle shaft (10), and a pull wire (11). The handle fixing frame (8) is fixed inside the door panel by screws, and a circular hole is processed at the middle position of its upper part, in which the door handle shaft (10) is installed, and the door handle (6) is installed at the middle position of the door handle shaft (10), and a piston hole is processed just below the door handle shaft (10), in which the return piston (9) and the return spring a (7) are installed, and below the return piston (9), the upper plane of the return piston (9) is against the middle position of the door handle (6). The door handle (6) is an "n"-shaped structure, and a circular hole is provided in the middle position of its upper part to match the door handle shaft (10), and the two lower end points of the "human"-shaped pull wire (11) are fixedly connected to the two sides of the circular hole. The pull wire (11) is in the shape of a human figure, the upper end of which is connected to the locking pin (14), and the lower end of which is connected to the door handle shaft (10).

[0008] Working principle: When we open or close the door, we push or pull the door handle (6) with force, and the door handle (6) swings around the door handle shaft (10), pulling the "human" shaped pull wire (11), and then pulling the locking pin (14), the locking pin (14) moves downward and escapes from the one-way curved chain (12), the door panel moves under the action of the door handle (6), and performs the action of opening and closing the door, while the one-way curved chain (12) moves in the 90-degree arc channel of the locking frame (15), when the door panel reaches the specified position, release the door handle (6), the door handle (6) returns to its original position under the action of the return spring a (7) and the return piston (9), releases the "human" shaped pull wire (11), releases the locking pin (14), and the locking pin (14) is reinserted into the one-way curved chain (12) under the action of the return spring b (13), and the door panel is locked.

[0009] The beneficial effect of the present invention is that the door panel can be released, the door can be opened and closed, and the door can be stopped with only one action of opening and closing the door, which is simple to operate, and the door stopper is not limited by ground conditions and has a wide range of applications. A new type of one-way bending chain is designed in the door stopper, which consists of only three parts, has a simple structure and is reliable in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the assembly drawing of this door stopper.

[0011] Figure 2 It is the front view of the chain link.

[0012] Figure 3 It is the left side view of the chain link.

[0013] Figure 4 It is a bottom view of the one-way bending chain assembly.

[0014] Figure 5 It is the front view of the one-way bending chain assembly.

[0015] Figure 6 This is a bottom view of the chain end.

[0016] Figure 7 This is a top view of the chain end.

[0017] Markings in the figure are 1. door frame, 2. door frame connecting frame, 3. chain end, 4. shaft a, 5. steel plate for door panel, 6. door handle, 7. return spring a, 8. handle fixing frame, 9. return piston, 10. door handle shaft, 11. pull wire, 12. one-way bending chain, 13. return spring b, 14. locking pin, 15. locking frame, 16. door panel connecting frame, 17. T-shaped shaft, 18. chain link, 19. sleeve, 20. chain pin, 21. chain shoulder a, 22. chain shoulder b. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, the door stopper is composed of three major parts: a door frame assembly, a locking assembly and a door handle assembly.

[0019] The door frame assembly is composed of a door frame connecting frame (2), a chain end (3), a shaft a (4), and a one-way bending chain (12). The door frame connecting frame (2) is fixed to the door frame (1) with screws and is in a "C" shape. A vertical hole is machined in the middle and is interference-fitted with the shaft a (4). The shaft a (4) is a cylinder. The chain end (3) is as shown in FIG. Figure 7 As shown, it is a fork frame type part, with a vertical hole on the left end, a vertical groove for installing a one-way bending chain (12) on the right end and a horizontal hole running through the front and back, and a vertical plane directly above the hole is called chain shoulder a (21). The vertical hole on the left end of the chain end (3) has a clearance fit with the shaft a (4), and is installed inside the door frame connecting frame (2) through the shaft a (4). The horizontal hole on the right end has an interference fit with the chain pin (20), and is hinged to the one-way bending chain (12) through the chain pin (20). The chain shoulder a (21) cooperates with the chain shoulder b (22) of the one-way bending chain (12) so that the one-way bending chain (12) can only bend downward relative to the chain end (3). As shown Figure 4 Figure 5 As shown, the one-way bending chain (12) is a chain that can only bend in one direction but not in another direction (in this patent, it can only bend downward but not upward). The maximum angle between two adjacent chain links is 180 degrees. Therefore, when it is stretched into a straight line, it can withstand both tension and pressure in the length direction. The one-way bending chain (12) is composed of a chain link (18), a sleeve (19) and a chain pin (20). Figure 2 Figure 3 As shown, the chain link (18) is formed by stamping a steel plate, and the overall shape is an "n" shape. Figure 2As shown, there is a chain pin hole at each end, and a vertical plane is a chain shoulder b (22) just above the hole axis. The chain pin (20) is a cylindrical pin, which has an interference fit with the sleeve (19) and a clearance fit with the chain link (18). The sleeve (19) is a cylinder with a round hole in the middle. Figure 4 As shown, two adjacent chain links (18) are hinged to each other through a chain pin (20), and a sleeve (19) is installed in the middle of the chain link (18) to axially position the chain pin (20). After the chain is straightened, the chain shoulders b (22) of the adjacent chain links (18) contact each other, so that the maximum angle between the two adjacent chain links (18) is 180 degrees, that is, one-way bending.

[0020] like Figure 1 As shown, the locking assembly is installed inside the door panel (the door panel is a hollow structure surrounded by steel plates) and is composed of a return spring b (13), a locking pin (14), a locking frame (15), a door panel connecting frame (16), and a T-shaped shaft (17). The door panel connecting frame (16) is fixed to the steel plate on the door panel by screws, and has a vertical countersunk hole in the middle thereof, which is clearance-matched with the T-shaped shaft (17), and its lower surface is in contact with the upper surface of the locking frame (15). The locking frame (15) is hinged to the door panel connecting frame (16) through a T-shaped shaft (17) and can swing around the T-shaped shaft (17). There is a 90-degree arc channel in the middle of the locking frame. One end of the channel is in a horizontal position. When the door panel is closed, its opening faces the shaft a (4) and the other end opens downward. The one-way bending chain (12) passes through the channel. Below the channel, there is a vertical locking pin hole, in which a locking pin (14) is installed. Below the locking pin (14), a return spring b (13) is installed. The T-shaped shaft (17) is a stepped shaft with a thread at the lower end, which is connected to the screw hole on the upper surface of the locking frame (15). The locking pin (14) is a cylindrical pin, the lower end of which is connected to the "human" shaped pull wire (11), and the upper end is inserted into the one-way bending chain (12) to play a locking role.

[0021] like Figure 1As shown, the door handle assembly is installed inside the door panel and consists of a door handle (6), a return spring a (7), a handle fixing frame (8), a return piston (9), a door handle shaft (10), and a pull wire (11). The handle fixing frame (8) is fixed inside the door panel by screws, and a circular hole is processed at the middle position of its upper part, in which the door handle shaft (10) is installed, and the door handle (6) is installed at the middle position of the door handle shaft (10), and a piston hole is processed just below the door handle shaft (10), in which the return piston (9) and the return spring a (7) are installed, and below the return piston (9), the upper plane of the return piston (9) is against the middle position of the door handle (6). The door handle (6) is an "n"-shaped structure, and a circular hole is provided in the middle position of its upper part to match the door handle shaft (10), and the two lower end points of the "human"-shaped pull wire (11) are fixedly connected to the two sides of the circular hole. The pull wire (11) is in the shape of a human figure, the upper end of which is connected to the locking pin (14), and the lower end of which is connected to the door handle shaft (10).

[0022] Working principle: When we open or close the door, we push or pull the door handle (6) with force, and the door handle (6) swings around the door handle shaft (10), pulling the "human" shaped pull wire (11), and then pulling the locking pin (14), the locking pin (14) moves downward and escapes from the one-way curved chain (12), the door panel moves under the action of the door handle (6), and performs the action of opening and closing the door, while the one-way curved chain (12) moves in the 90-degree arc channel of the locking frame (15), when the door panel reaches the specified position, release the door handle (6), the door handle (6) returns to its original position under the action of the return spring a (7) and the return piston (9), releases the "human" shaped pull wire (11), releases the locking pin (14), and the locking pin (14) is reinserted into the one-way curved chain (12) under the action of the return spring b (13), and the door panel is locked.

Claims

1. A door stopper, characterized in that: It consists of three parts: door frame assembly, locking assembly and door handle assembly; The door frame assembly is composed of a door frame connecting frame (2), a chain end (3), a shaft a (4), and a one-way bending chain (12); the door frame connecting frame (2) is fixed to the door frame (1) by screws, and is in a "C" shape, with a vertical hole in the middle, and an interference fit with the shaft a (4); the shaft a (4) is a cylinder; the chain end (3) is a fork frame-like part, with a vertical hole at the left end, a vertical groove for installing the one-way bending chain (12) at the right end, and a horizontal hole running through the front and back, and a vertical hole is formed in the hole. There is a vertical plane called chain shoulder a (21) directly above the chain end (3); the vertical hole at the left end of the chain end (3) is clearance-matched with the shaft a (4), and is installed inside the door frame connecting frame (2) through the shaft a (4); the horizontal hole at the right end is interference-matched with the chain pin (20), and is hinged to the one-way bending chain (12) through the chain pin (20); the chain shoulder a (21) cooperates with the chain shoulder b (22) of the one-way bending chain (12) so that the one-way bending chain (12) can only move relative to the chain end (3). The one-way bending chain (12) can only bend downward but not upward, and the maximum angle between two adjacent chain links is 180 degrees. The one-way bending chain (12) is composed of a chain link (18), a sleeve (19) and a chain pin (20); the chain link (18) is stamped from a steel plate, and the overall shape is an "n" shape, with a chain pin hole at each end, and a vertical plane just above the axis of the hole as a chain shoulder b (22); the chain pin (20) is a cylindrical pin, and is connected to the sleeve (1 9) is an interference fit, and the sleeve (19) is a clearance fit with the chain link (18); the sleeve (19) is a cylinder with a round hole in the middle; two adjacent chain links (18) are hinged to each other through a chain pin (20), and the sleeve (19) is installed in the middle of the chain link (18) to axially position the chain pin (20). After the chain is straightened, the chain shoulders b (22) of the adjacent chain links (18) contact each other, so that the maximum angle between the two adjacent chain links (18) is 180 degrees, that is, one-way bending; The locking assembly is installed inside the door panel, and is composed of a return spring b (13), a locking pin (14), a locking frame (15), a door panel connecting frame (16), and a T-shaped shaft (17); the door panel connecting frame (16) is fixed to the steel plate on the door panel by screws, and has a vertical countersunk hole in the middle thereof, which is clearance-matched with the T-shaped shaft (17), and its lower surface is in contact with the upper surface of the locking frame (15); the locking frame (15) is hinged to the door panel connecting frame (16) through the T-shaped shaft (17), and can swing around the T-shaped shaft (17), and has a 90-degree arc channel in the middle thereof. One end of the channel is in a horizontal position. When the door panel is closed, its opening faces the axis a (4), and the other end opens downward. A one-way curved chain (12) passes through the channel. Below the channel, there is a vertical locking pin hole, inside which a locking pin (14) is installed. Below the locking pin (14), a return spring b (13) is installed. The T-shaped shaft (17) is a stepped shaft, and the lower end has a thread, which is connected to the screw hole on the upper surface of the locking frame (15). The locking pin (14) is a cylindrical pin, the lower end of which is connected to the "human" shaped pull wire (11), and the upper end is inserted into the one-way curved chain (12) to play a locking role. The door handle assembly is installed inside the door panel and is composed of a door handle (6), a return spring a (7), a handle fixing frame (8), a return piston (9), a door handle shaft (10), and a pull wire (11); the handle fixing frame (8) is fixed inside the door panel by screws, a round hole is processed at the center of the upper part thereof, the door handle shaft (10) is installed in the round hole, the door handle (6) is installed at the middle position of the door handle shaft (10), a piston hole is processed just below the door handle shaft (10), and the return piston is installed in the piston hole (9) and a return spring a (7), the return spring a (7) is below the return piston (9), and the upper plane of the return piston (9) is against the middle position of the door handle (6); the door handle (6) is an "n"-shaped structure, and a circular hole is provided in the middle position of the upper part thereof to match the door handle shaft (10), and the two sides of the circular hole are respectively fixedly connected to the two lower end points of the "human"-shaped pull wire (11); the pull wire (11) is in the shape of a "human", and its upper end is connected to the locking pin (14), and its lower end is connected to the door handle shaft (10).

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