Buffering device of security door

Abstract

The utility model discloses an anti-theft door buffering device which comprises a door frame and a door plate, a limiting plate is arranged on the door frame in a protruding mode, a mute strip is arranged on the limiting plate, a telescopic ejector rod is arranged on the door plate in a matched mode, and the ejector rod makes contact with the mute strip before the door plate. And the ejector rod is connected in the door plate through a buffer spring. The telescopic ejector rod and the magnetic attraction mute strip are arranged to be matched, the buffer spring is arranged, the door plate and the door frame absorb kinetic energy through the buffer spring, and noise generated when the door body is impacted is greatly reduced. Meanwhile, the pull rope, the partition plate, the handle and the connecting rod assembly are matched, a user can easily control the ejector rod to be separated from the magnetic piece when opening the door, resistance of magnetic adsorption during door opening is cut off, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft doors, in particular to a buffer device for anti-theft doors. Background Art

[0002] In the current design of anti-theft doors, the impact and vibration of door panels and door frames during the closing process are common problems, which not only produces loud noises and affects the tranquility of the user's living environment, but may also cause increased wear and tear on the door structure, affecting its service life. Magnetic mute strips are now widely used in the field of anti-theft door buffering. It has become a new technical trend to achieve slow closing and positioning of the door body through magnetic force. Although traditional buffer devices can alleviate the impact force and reduce noise to a certain extent, when the existing door panels and door frames are close, the door panels will be quickly adsorbed under the action of magnetic force and the door will be closed immediately, causing inconvenience. At the same time, the magnetically adsorbed door panels and door frames require additional force to open them. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides a buffer device for anti-theft doors.

[0004] In order to solve the above technical problems, the utility model solves the problems through the following technical solutions: the anti-theft door buffer device includes a door frame and a door panel, a limiting plate is protrudingly provided on the door frame, a soundproofing strip is provided on the limiting plate, a retractable top rod is cooperatively provided on the door panel, the top rod contacts the soundproofing strip before the door panel, and the top rod is connected to the door panel through a buffer spring.

[0005] In the above scheme, preferably, the noise-reducing strip is a magnetic noise-reducing strip, and a magnetic sheet is provided at the front end of the top rod.

[0006] In the above solution, preferably, the diameter of the magnetic sheet is larger than that of the push rod, and a groove for placing the magnetic sheet is provided on the door panel.

[0007] In the above solution, preferably, a placement groove for placing the mute strip is provided on the limiting plate.

[0008] In the above solution, preferably, a hollow area is provided on the door panel for matching the push rod, and the buffer spring is provided between the hollow area and the push rod.

[0009] In the above scheme, preferably, the anti-theft door also includes a lock tongue assembly and a handle connected by a connecting rod, the handle is connected to the lock tongue assembly by the connecting rod, and when the handle is rotated, the lock tongue moves toward the inside of the door panel.

[0010] In the above solution, preferably, a partition is provided in the hollow area, and the buffer spring is provided between the partition and the top rod.

[0011] In the above scheme, preferably, one end of the pull rope passes through the partition and the buffer spring and is connected to the top rod, and the other end of the pull rope passes through the door panel and is wrapped around the transmission rod.

[0012] In the above solution, preferably, the push rods are distributed at both ends of the door panel.

[0013] The beneficial effects of the utility model are: by providing a retractable top rod, a magnetic mute strip, and a buffer spring, the door panel and the door frame use the buffer spring to absorb kinetic energy, which greatly reduces the noise generated when the door body hits. At the same time, a pull rope, a partition, a handle, and a connecting rod assembly are provided, so that the user can easily control the top rod to separate from the magnetic sheet when opening the door, disconnecting the resistance of magnetic adsorption when opening the door, and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a top view of the utility model.

[0016] Figure 3 It is a schematic diagram of the installation structure of the top rod of the utility model.

[0017] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 5 It is a schematic diagram of the hollow area structure of the utility model. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1-Figure 5 The anti-theft door buffer device includes a door panel 2 and a door frame 1, wherein a protruding limiting plate 3 is installed on the door frame 1, and the limiting plate 3 is used to limit the movement of the door panel 2, so that the door panel 2 can be accurately closed in the door frame 1, and a silent strip is arranged on the limiting plate 3 to absorb the impact force when closing the door.

[0020] In order to further enhance the buffering force of the door panel 2 when closing, a number of retractable top rods 4 can be installed on the door panel 2. The top rods 4 are designed to contact the silent strip before the door panel 2, and are connected to the inside of the door panel 2 through buffer springs 5, so as to ensure a smooth transition and noise reduction during the door closing process, thereby achieving the goal of buffering the rotation speed of the door panel 2 first.

[0021] Further optimization, the mute strip is made of magnetic material, and a magnetic sheet 6 is configured at the front end of the top rod 4. Therefore, when the rotation speed of the door panel 2 is buffered, the magnetic sheet 6 and the mute strip cooperate, and the two then attract each other, so that the locking tongue of the closed door panel 2 can enter the lock hole. Furthermore, the magnetic sheet 6 and part of the top rod 4 are protrudingly arranged on the outside of the door panel 2, and the diameter of the magnetic sheet 6 is set larger than that of the top rod 4. At the same time, a corresponding groove 7 is reserved on the outer surface of the door panel 2 to store the buffered magnetic sheet 6, ensuring that the door panel 2 can be closed normally.

[0022] The limit plate 3 is provided with a dedicated placement groove 8 for the mute strip, ensuring that the position of the mute strip is fixed and in good contact with the top rod 4 or the door panel 2. The limit plate 3 with the placement groove 8 can facilitate the subsequent replacement of the mute strip. Furthermore, a hollow area 9 matching the top rod 4 is provided inside the door panel 2, and the buffer spring 5 is located between the hollow area 9 and the top rod 4 to play a buffering role.

[0023] Since, when opening the door, the user needs to use additional force to release the magnetic attraction of the door panel 2 and the door frame 1, in order to facilitate the control of the push rod 4 to separate from the magnetic sheet 6, a partition 13 is provided in the hollow area 9, and the buffer spring 5 is provided at the end of the partition 13 and the push rod 4, and a pull rope 14 is provided to pass through the partition 13 and the buffer spring 5 and is connected to the end of the push rod 4. Several groups of push rods 4 can be twisted into the same pull rope 14 after being set downward in sequence, and extended to the bottom of the door panel 2.

[0024] The anti-theft door also includes a lock tongue assembly 10 and a handle 12 connected by a connecting rod 11. By rotating the handle 12, the lock tongue can be moved toward the inside of the door panel 2 to achieve an unlocking function. For this purpose, the other end of a pull rope 14 extending downward is set on the connecting rod 11, and the pull rope 14 is wound around the connecting rod 11, so that when the handle 12 is rotated to open the door, the top rod 4 moves toward the side of the partition 13, that is, the force of the magnetic connection is disconnected first.

[0025] In addition, the top rod 4 is not only provided at one end of the door panel 2, but can be distributed at both ends of the same side of the door panel 2. The purpose is to improve the stability by allowing the top rods 4 on both sides to work at the same time, thereby enhancing the buffering capacity of the door panel 2 when closing and the force of disconnection when opening. At the same time, the top rods 4 are connected to the connecting rod 11 through matching connecting parts.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A buffer device for anti-theft doors, comprising a door frame and a door panel, characterized in that: A limit plate is protrudingly provided on the door frame, a soundproof strip is provided on the limit plate, a retractable push rod is cooperatively provided on the door panel, the push rod contacts the soundproof strip before the door panel, and the push rod is connected to the door panel through a buffer spring.

2. The anti-theft door buffer device according to claim 1, characterized in that: The noise-absorbing strip is a magnetic noise-absorbing strip, and a magnetic sheet is arranged at the front end of the top rod.

3. The anti-theft door buffer device according to claim 2, characterized in that: The diameter of the magnetic sheet is larger than that of the top rod, and a groove for placing the magnetic sheet is arranged on the door panel.

4. The anti-theft door buffer device according to claim 3, characterized in that: A placement groove for placing the mute strip is arranged on the limiting plate.

5. The anti-theft door buffer device according to claim 4, characterized in that: The door panel is matched with a push rod and a hollow area is arranged, and the buffer spring is arranged between the hollow area and the push rod.

6. The anti-theft door buffer device according to claim 5, characterized in that: The anti-theft door also includes a lock tongue assembly and a handle connected by a connecting rod. The handle is connected to the lock tongue assembly by the connecting rod. When the handle is rotated, the lock tongue moves toward the inside of the door panel.

7. The anti-theft door buffer device according to claim 6, characterized in that: A partition is arranged in the hollow area, and the buffer spring is arranged between the partition and the top rod.

8. The anti-theft door buffer device according to claim 7, characterized in that: One end of the pull rope passes through the partition plate and the buffer spring and is connected with the top rod, and the other end of the pull rope passes through the door panel and is wound around the transmission rod.

9. The anti-theft door buffer device according to any one of claims 1 to 8, characterized in that: The push rods are distributed at both ends of the door panel.

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