A quiet closer for a swing door

Abstract

The utility model discloses a kind of flat open door mute buffer devices, belong to small buffer damper device technical field, including shell and outer box, shell side surface is equipped with mounting groove, mounting groove is fixedly installed with outer frame, outer frame rear is fixedly installed with fan, outer frame one side is installed with battery, outer frame inside is fixedly installed with heating element. Shell is fixedly connected with rotating shaft, rotating shaft is movably connected with surface-mounted buffer device, and the upper wall of surface-mounted buffer device is provided with placing groove, and the inside of placing groove is fixedly provided with support block, the side surface of support block is fixedly provided with second spring, the inside of support block is fixedly provided with shaft body, first spring is arranged around on shaft body, support rod is connected on second spring, small damper is installed in placing groove, buffer plate is arranged in the inside of placing groove, battery box is in the inside of shell. Shell one side is equipped with heat dissipation hole, can better prevent the problem that the resistance increase caused by low temperature leads to device malfunction.

Description

Technical Field

[0001] This utility model specifically relates to a silent damping device for swing doors, belonging to the technical field of small buffer damping devices. Background Technology

[0002] During the closing process of a hinged or horizontal sliding door, the edge of the sliding door frame inevitably comes into direct contact and collides with the fixed top door frame structure. This collision may be acceptable under normal force, but when the user applies more force or closes the door too quickly, the impact force between the sliding door frame and the fixed top door frame increases dramatically. This excessive impact force not only instantly generates an uncomfortable, loud "bang" noise, disturbing the peace, but more importantly, long-term, repeated, and severe impacts will cause progressive damage to the door itself and its hardware. Current buffer devices are generally inadequate to address the issue of impact noise and door frame damage caused by the buffer failing due to forceful pushing and pulling. Therefore, we propose a silent buffer device for hinged doors to better solve the problem of impact noise and door frame damage caused by the buffer failing due to forceful pushing and pulling.

[0003] Patent document CN215169103U discloses an externally mounted miniature buffer damping device, "including a buffer closing component connected to a fixed top door frame and a buffer actuation component connected to the top of a movable door frame. The buffer closing component includes a spring, a damping rod, and an actuation block. The spring and damping rod are arranged parallel to each other. The buffer actuation component includes a contact block, with a first channel on the top of the contact block allowing the actuation block to enter. The actuation block is connected below the damping rod so that the damping rod is unlocked under the action of the contact block, and the damping rod is slowly closed under the contraction force of the spring. This utility model's externally mounted miniature buffer damping device cleverly utilizes the resistance of the damping rod, so that the sliding and closing process of the movable door in sliding doors and sliding swing doors can be buffered and proceeded slowly, avoiding excessive impact, making the sliding and closing process slower and quieter; the externally mounted miniature buffer damping device is placed outside the door frame, which is convenient for maintenance and replacement, and the product is small and aesthetically pleasing."

[0004] However, the main considerations of the aforementioned published literature are to utilize the resistance of the damping rod to buffer and slow down the sliding and closing process of the sliding door and the swing door, so as to avoid excessive impact and make the sliding and closing process slower and quieter. The external small buffer damping device is placed on the door frame for easy maintenance and replacement. The product is small in size and aesthetically pleasing. However, it does not take into account the problem of device failure caused by external factors (such as low temperature, strong pushing and pulling). Therefore, it is necessary to study a silent damping device for swing doors, so as to solve the problem of device failure caused by low temperature and strong pushing and pulling. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a silent and slow-moving device for swing doors, so as to solve the problem of device failure caused by low temperatures and strong pushing and pulling.

[0006] A door noise reduction device is characterized in that it includes a shell and an outer casing. The shell has a mounting groove on its side, an outer frame is fixedly installed in the mounting groove, a fan is fixedly installed behind the outer frame, a battery is installed on one side of the outer frame, and a heating element is fixedly installed inside the outer frame.

[0007] Preferably, a rotating shaft is fixedly connected to the outer shell, and a surface-mounted buffer device is movably connected to the rotating shaft. The surface-mounted buffer device has a placement groove on its upper wall, a support block is fixedly installed inside the groove, a second spring is fixedly installed on the side of the support block, a shaft is fixedly installed inside the support block, a first spring is arranged around the shaft, a support rod is connected to the second spring, a small damper is installed in the groove, and a buffer plate is installed inside the placement groove. The second spring, the small damper, and the support rod are all fixedly connected to the buffer plate.

[0008] Preferably, a trigger is fixedly installed inside the outer casing.

[0009] Preferably, the battery compartment inside the housing is fixedly provided with an operation button on the front side of the housing.

[0010] Preferably, a heat dissipation hole is provided on one side of the outer casing. Preferably, the exposed buffer device has a track, and the track is located on one side of the placement slot. Beneficial effects

[0011] This invention avoids increased resistance at low temperatures, which could lead to device failure, by installing a heating device. The fan is installed in a mounting slot. When the user presses an operation button, the power supply circuit from the battery to the heating element is connected, initiating the heating process. Warm air is continuously blown in to raise the temperature. After the fan starts, it actively draws in cold air from the low-temperature environment outside the device. The drawn-in cold air is directionally transported through an insulated duct to the heating unit located inside the device's outer frame. The cold air is thoroughly heated by the heating element, rapidly increasing its temperature and transforming into warm air at the set temperature. The heated warm air is then forced into the temperature-protected outer shell cavity through another insulated duct and a pre-designed opening, thus preventing increased resistance at low temperatures that could cause device failure.

[0012] This utility model incorporates a shock-absorbing device to prevent the door from jumping out of its seat due to forceful slamming, thus reducing impact noise and damage to the door frame. The outer casing is mounted on the door frame, and the outer box is mounted on the door. When the door is opened, the exposed buffer device inside the outer casing rotates at a certain angle, and then the closing device inside the outer box emerges from its track. When the door is closed with force, the door pulls the outer box into the track of the exposed buffer device. The door's force first hits the buffer plate. As the buffer plate moves, the first and second springs alleviate the pressure on the buffer plate through their elasticity. Simultaneously, a small damper effectively prevents the buffer springs from constantly pushing the buffer plate, thereby reducing the impact noise and extending the lifespan of both the door and the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exposed buffer structure of this utility model; Figure 3 This is a schematic diagram of the structure of the shock absorption device of this utility model; Figure 4 This is a schematic diagram of the mounting groove of this utility model; Figure 5 This is a schematic diagram of the heating device of this utility model; Figure 6 This is a schematic diagram of the heat dissipation structure of this utility model.

[0014] In the diagram: 1. Outer casing; 2. Surface-mounted buffer device; 3. Trigger; 4. Outer box; 5. Battery box; 7. Rotating shaft; 8. Placement slot; 9. Track; 10. Support block; 11. Shaft; 12. First spring; 13. Second spring; 14. Small damper; 15. Support rod; 17. Outer frame; 18. Mounting slot; 19. Heating element; 20. Operation button; 21. Battery; 22. Fan; 23. Heat dissipation hole; 24. Buffer plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0018] Please see Figure 1-6 As shown, a swing door noise reduction device includes a housing 1 and an outer box 4. The housing 1 has a mounting groove 18 on its side. An outer frame 17 is fixedly installed in the mounting groove 18. A fan 22 is fixedly installed behind the outer frame 17. A battery 21 is installed on one side of the outer frame 17. A heating element 19 is fixedly installed inside the outer frame 17.

[0019] To prevent device failure due to increased low-temperature resistance, a heating device is installed. The fan 22 is installed in the mounting slot 18. When the user presses the operation button 20, the power supply circuit from the battery 21 to the heating element 19 is connected, initiating the heating process. Warm air is continuously blown in to raise the temperature. After the fan 22 starts, it actively draws in cold air from the low-temperature environment outside the device. The drawn-in cold air is directionally transported through an insulated duct to the heating element 19 located in the outer frame 17 compartment. The cold air is fully heated by the heating element 19, and the air temperature rises rapidly, transforming into warm air that reaches the set temperature. The heated warm air is then forced into the temperature-protected outer casing 1 through a pre-designed opening via another insulated duct, thus preventing device failure caused by increased low-temperature resistance.

[0020] Furthermore: A rotating shaft 7 is fixedly connected to the outer casing 1, and a surface-mounted buffer device 2 is movably connected to the rotating shaft 7. A placement groove 8 is provided on the upper wall of the surface-mounted buffer device 2. A support block 10 is fixedly installed inside the placement groove 8. A second spring 13 is fixedly installed on the side of the support block 10. A shaft 11 is fixedly installed inside the support block 10. A first spring 12 is arranged around the shaft 11. A support rod 15 is connected to the second spring 13. A small damper 14 is installed in the placement groove 8. A buffer plate 24 is provided inside the placement groove 8. The second spring 13, the small damper 14, and the support rod 15 are all fixedly connected to the buffer plate 24.

[0021] By installing a shock-absorbing device, the door is prevented from jumping out due to forceful slamming, thus reducing impact noise and damage to the door frame. The outer casing 1 is installed on the door frame, and the outer box 4 is installed on the door. When the door is opened, the exposed buffer device 2 inside the outer casing 1 rotates at a certain angle. Then, the trigger 3 inside the outer box 4 comes out from the track 9. When the door is closed with force, the door will drive the outer box 4 into the exposed buffer device 2 inside the track 9. The door's pushing force first reaches the buffer plate 24. When the buffer plate 24 moves, the first spring 12 and the second spring 13 will relieve the pressure applied to the buffer plate 24 through their own elasticity. At the same time, the small damper 14 can effectively prevent the buffer spring from pushing the buffer plate 24 to continuously shake its position, thereby reducing the buffer and preventing the door from jumping out, reducing impact noise and improving the service life of the door and the device.

[0022] Furthermore: A trigger 3 is fixedly installed inside the outer casing 4. A battery box 5 is located inside the outer casing 1, and an operation button 20 is fixedly installed on the front side of the outer casing 1. A heat dissipation hole 23 is provided on one side of the outer casing 1. A track 9 is provided on the surface-mounted buffer device 2, and the track 9 is located on one side of the placement slot 8.

[0023] The outer casing 4 has an internal trigger 3 in the closed state within the track 9 of the exposed buffer device 2. The battery 21 of the outer casing 1 can be removed and replaced through the battery box 5. The heat dissipation hole 23 on one side of the outer casing 1 allows airflow to escape.

[0024] Working Principle: A heating device is installed to prevent increased resistance at low temperatures, which could lead to device failure. The fan 22 is installed in the mounting slot 18. When the user presses the operation button 20, the power supply circuit from the battery 21 to the heating element 19 is connected, initiating the heating process. Warm air is continuously blown in to raise the temperature. After the fan 22 starts, it actively draws in cold air from the low-temperature environment outside the device. The drawn-in cold air is directionally transported through an insulated duct to the heating element 19 located in the outer frame 17 of the device. The cold air is fully heated by the heating element 19, and the air temperature rises rapidly, transforming into warm air that reaches the set temperature. The heated warm air is then forced into the temperature-protected outer casing 1 through a pre-designed opening via another insulated duct, thus preventing increased resistance at low temperatures from causing device failure.

[0025] By installing a shock-absorbing device, the door is prevented from jumping out due to forceful slamming, thus reducing impact noise and damage to the door frame. The outer casing 1 is installed on the door frame, and the outer box 4 is installed on the door. When the door is opened, the exposed buffer device 2 inside the outer casing 1 rotates at a certain angle. Then, the trigger 3 inside the outer box 4 comes out from the track 9. When the door is closed with force, the door will drive the outer box 4 into the exposed buffer device 2 inside the track 9. The door's pushing force first reaches the buffer plate 24. When the buffer plate 24 moves, the first spring 12 and the second spring 13 will relieve the pressure applied to the buffer plate 24 through their own elasticity. At the same time, the small damper 14 can effectively prevent the buffer spring from pushing the buffer plate 24 to continuously shake its position, thereby reducing the buffer and preventing the door from jumping out, reducing impact noise and improving the service life of the door and the device.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A silent door damping device, comprising a housing (1) and an outer casing (4), characterized in that, The outer casing (1) has a mounting groove (18) on its side. An outer frame (17) is fixedly installed in the mounting groove (18). A fan (22) is fixedly installed behind the outer frame (17). A storage battery (21) is installed on one side of the outer frame (17). A heating element (19) is fixedly installed inside the outer frame (17).

2. The silent door damping device as described in claim 1, characterized in that: A rotating shaft (7) is fixedly connected to the outer shell (1). A surface-mounted buffer device (2) is movably connected to the rotating shaft (7). A placement groove (8) is provided on the upper wall of the surface-mounted buffer device (2). A support block (10) is fixedly provided inside the placement groove (8). A second spring (13) is fixedly provided on the side of the support block (10). A shaft (11) is fixedly provided inside the support block (10). A first spring (12) is arranged around the shaft (11). A support rod (15) is connected to the second spring (13). A small damper (14) is installed in the placement groove (8). A buffer plate (24) is provided inside the placement groove (8). The second spring (13), the small damper (14), and the support rod (15) are all fixedly connected to the buffer plate (24).

3. The silent door damping device as described in claim 1, characterized in that: A trigger (3) is fixedly installed inside the outer casing (4).

4. The silent door damping device as described in claim 1, characterized in that: The battery box (5) is located inside the outer casing (1), and an operation button (20) is fixedly provided on the front side of the outer casing (1).

5. The silent door damping device as described in claim 1, characterized in that: The outer casing (1) has a heat dissipation hole (23) on one side.

6. The silent door damping device as described in claim 2, characterized in that: The exposed buffer device (2) has a track (9) inside, and the track (9) is located on one side of the placement slot (8).

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