Multi-point buffering type primary and secondary door
By introducing a slow-resisting damping buffer and an anti-over-opening damping buffer into the mother and child door, the impact noise and damage problems when the mother and child door are closed are solved, a safe and stable opening process is achieved, and the sealing is improved, and the user experience is improved.
Patent Information
- Application Number
- CN202422301410.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing mother and child door lacks effective buffering during closing, resulting in impact noise and door body damage, and lacks limiting devices during opening, which has overopening and safety hazards.
The design of the bumper damping buffer and the anti-over-open damping buffer are adopted, including a limiting plate, a buffer spring, a multi-directional ball sleeve and a sealing strip. The buffering and limit protection of the door body is achieved through the combination of connecting rods, abutment arc blocks, multi-directional balls and buffer springs.
It reduces impact noise when the door body is closed, reduces damage to the door frame and door body, improves service life and safety, and improves sealing and user comfort.
Smart Images
Figure CN223135946U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furniture equipment, and particularly relates to a multi-point buffering type mother-daughter door. Background Art
[0002] In large residential houses, villas and commercial buildings, mother-daughter doors are widely welcomed by the market due to their unique opening and closing methods and beautiful and generous appearances. A mother-daughter door usually consists of a main door and a subsidiary door, which are connected to the door frame through hinges, and can not only meet the daily passage needs, but also effectively isolate the indoor and outdoor temperature difference and noise.
[0003] Although there are various types of mother-daughter doors on the market at present, there are still many technical problems to be solved in practical applications. First of all, during the closing process of the existing mother-daughter doors, due to the lack of an effective buffering mechanism, the door body often impacts the door frame at a relatively high speed, which not only generates noise, but also easily damages the door frame and the door body, affecting the service life. In addition, the traditional mother-daughter doors lack effective limiting and buffering devices during the opening process. Once affected by an external force, they are prone to over-opening phenomena, posing potential safety hazards. Content of the Utility Model
[0004] To solve the above problems, the utility model provides a multi-point buffering type mother-daughter door, which includes a door frame. A main door and a subsidiary door are connected to the door frame through hinges. An inner side of the top end of the door frame is fixedly provided with a limiting plate. A plurality of installation outer holes are opened on the limiting plate. An inner plugging hole is opened at a deep end of the installation outer hole. The inner diameter of the installation outer hole is larger than that of the inner plugging hole. A slow-collision damping buffer member is arranged in the installation outer hole; the slow-collision damping buffer member includes a connecting rod inserted into and slidably connected with the inner plugging hole. One end of the connecting rod far away from the inner plugging hole is fixedly provided with a butting arc block. A buffer spring A is fixed between the butting arc block and the deep wall of the installation outer hole. The buffer spring A is sleeved outside the connecting rod. When the buffer spring A is in a non-compressed state, the butting arc block is located outside the limiting plate; anti-over-opening damping buffer members are further installed on the back surfaces of the door frame, the main door and the subsidiary door.
[0005] Furthermore, the anti-over-opening damping buffer member includes two multi-directional ball sleeves fixed on two sides of the rear wall of the door frame. A multi-directional ball that can rotate in multiple directions rotates in the multi-directional ball sleeve. A long rod is fixed on the multi-directional ball. T-shaped grooves are opened on both the main door and the subsidiary door. A T-shaped block is slidably connected in the T-shaped groove. The other ends of the two long rods are respectively fixed to the two T-shaped blocks. A buffer spring B is fixed at one end of the T-shaped groove close to the adjacent multi-directional ball.
[0006] Furthermore, riveting rods are fixed on both the main door and the subsidiary door. A locking sleeve is rotatably connected to one of the riveting rods. A clamping groove is further opened at the bottom of the locking sleeve. When the locking sleeve rotates above the other riveting rod, the clamping groove can be sleeved on the other riveting rod.
[0007] Furthermore, a sealing groove is provided on the inner side of the door frame, and a sealing strip is installed in the sealing groove.
[0008] Furthermore, handles are installed on the front walls of the main door and the auxiliary door.
[0009] The beneficial effects of the present utility model are as follows:
[0010] 1. The application of the slow collision damping buffer reduces the impact noise when the door body is closed, reduces the risk of damage to the door frame and the door body, and extends the service life; the design of the anti-over-opening damping buffer effectively ensures that the main door and the auxiliary door will not be over-opened due to excessive accidental thrust during the opening process, enhancing the safety and stability of use.
[0011] 2. The cooperation between the sealing groove on the inner side of the door frame and the sealing strip effectively improves the sealing performance of the door gap, prevents air leakage and dust leakage problems, improves the indoor environment, reduces noise and vibration by optimizing the opening and closing process of the door body, and enhances the comfort and satisfaction of users. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is Figure 1 a schematic front view of the door frame in
[0014] Figure 3 is a schematic structural diagram of the slow collision damping buffer in the present utility model;
[0015] Figure 4 is a rear view of the present utility model;
[0016] Figure 5 is Figure 4 a partial enlarged schematic view of part A in
[0017] Explanation of the reference numerals in the drawings is as follows: 1. Door frame; 2. Main door; 3. Auxiliary door; 4. Limiting plate; 41. Installation outer hole; 42. Insertion inner hole; 51. Connecting rod; 52. Abutting arc block; 53. Buffer spring A; 61. Multi-directional ball sleeve; 62. Multi-directional ball; 63. Long rod; 64. T-shaped groove; 65. T-shaped block; 66. Buffer spring B; 7. Riveting rod; 8. Locking sleeve; 81. Card slot; 9. Handle. Detailed Description of the Preferred Embodiment
[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0020] The present utility model will be further described below in conjunction with the drawings of the specification:
[0021] A multi-point buffer type mother and son door, as Figure 1 and Figure 4 shown, includes a door frame 1. A main door 2 and a secondary door 3 are connected to the door frame 1 by hinges. A sealing groove is provided inside the door frame 1, and a sealing strip is installed in the sealing groove. A limit is fixed inside the top end of the door frame 1; Handles 9 are installed on the front walls of the main door 2 and the secondary door 3. Riveting rods 7 are fixed on both the main door 2 and the secondary door 3. A locking sleeve 8 is rotatably connected to one of the riveting rods 7. A card slot 81 is also provided at the bottom of the locking sleeve 8. When the locking sleeve 8 rotates above the other riveting rod 7, the card slot 81 can be sleeved on the other riveting rod 7.
[0022] As Figure 1 , Figure 2 and Figure 3 shown, in this embodiment, a plurality of installation outer holes 41 are provided on the limit plate 4. Insertion inner holes 42 are provided at the deep ends of the installation outer holes 41 of the limit plate 4. The inner diameter of the installation outer holes 41 is larger than the inner diameter of the insertion inner holes 42. Buffer damping buffer members are provided in the installation outer holes 41; The buffer damping buffer member includes a connecting rod 51 inserted into and slidably connected to the insertion inner hole 42. One end of the connecting rod 51 away from the insertion inner hole 42 is fixed with an abutting arc block 52. A buffer spring A53 is fixed between the abutting arc block 52 and the deep wall of the installation outer hole 41. The buffer spring A53 is sleeved outside the connecting rod 51. When the buffer spring A53 is in a non-compressed state, the abutting arc block 52 is outside the limit plate 4.
[0023] As Figure 4 and Figure 5 shown, in this embodiment, anti-over-opening damping buffer members are also installed on the back surfaces of the door frame 1, the main door 2, and the auxiliary door 3. The anti-over-opening damping buffer members include two multi-directional ball sleeves 61 fixed on both sides of the rear wall of the door frame 1. A multi-directional ball 62 capable of rotating in multiple directions rotates in the multi-directional ball sleeve 61. A long rod 63 is fixed on the multi-directional ball 62. T-shaped grooves 64 are formed on both the main door 2 and the auxiliary door 3. A T-shaped block 65 is slidably connected in the T-shaped groove 64. The other ends of the two long rods 63 are respectively fixed to the two T-shaped blocks 65. A buffer spring B66 is fixed at one end of the T-shaped groove 64 close to the adjacent multi-directional ball 62.
[0024] The working principle of the present utility model is as follows:
[0025] By integrating the slow-collision damping buffer member and the anti-over-opening damping buffer member, double protection during the closing and opening processes of the door body is achieved. The slow-collision damping buffer member is installed on the limiting plate 4 at the top of the door frame 1. By using the combination of the connecting rod 51, the abutting arc block 52, and the buffer spring A53, when the door body approaches the door frame 1, the abutting arc block 52 first contacts the door frame 1 and compresses the buffer spring A53. The impact energy is absorbed by the elastic force of the spring, and the impact speed of the door body is slowed down, thereby protecting the door frame 1 and the door body.
[0026] The anti-over-opening damping buffer member restricts the maximum angle of the main door 2 and the auxiliary door 3 during the opening process through the mutual cooperation of the multi-directional ball 62, the long rod 63, the T-shaped block 65, and the buffer spring B66, preventing over-opening. When the door body approaches the maximum opening angle, the T-shaped block 65 is subjected to the resistance transmitted by the multi-directional ball 62 through the long rod 63 and compresses the buffer spring B66, generating a reverse resistance to effectively prevent the door body from continuing to open.
[0027] When it is necessary to lock the main door 2 and the auxiliary door 3, by rotating the locking sleeve 8, the card slot 81 of the locking sleeve 8 is sleeved on the other riveting rod 7, and the riveting ends of the two riveting rods 7 abut against the locking sleeve 8, so that the main door 2 and the auxiliary door 3 are locked and cannot be opened.
[0028] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.
Claims
1. A multi-point buffered mother-daughter door, comprising a door frame (1), on which a main door (2) and an auxiliary door (3) are connected by hinges, characterized in that: A limiting plate (4) is fixed to the inner side of the top end of the door frame (1). A plurality of mounting outer holes (41) are formed in the limiting plate (4). An insertion inner hole (42) is formed at the deep end of the mounting outer hole (41) of the limiting plate (4). The inner diameter of the mounting outer hole (41) is larger than that of the insertion inner hole (42). A slow-collision damping buffer is arranged in the mounting outer hole (41). The slow-collision damping buffer includes a connecting rod (51) inserted into and slidably connected with the insertion inner hole (42). One end of the connecting rod (51) far away from the insertion inner hole (42) is fixed with an abutting arc block (52). A buffer spring A (53) is fixed between the abutting arc block (52) and the deep wall of the mounting outer hole (41). The buffer spring A (53) is sleeved outside the connecting rod (51). When the buffer spring A (53) is in a non-compressed state, the abutting arc block (52) is located outside the limiting plate (4). Anti-over-opening damping buffers are also installed on the back surfaces of the door frame (1), the main door (2), and the auxiliary door (3).
2. The multi-point buffer type mother and son door according to claim 1, wherein: The anti-over-opening damping buffer includes two multi-directional ball sleeves (61) fixed to both sides of the rear wall of the door frame (1). A multi-directional ball (62) that can rotate in multiple directions rotates in the multi-directional ball sleeve (61). A long rod (63) is fixed to the multi-directional ball (62). T-shaped grooves (64) are formed in both the main door (2) and the auxiliary door (3). A T-shaped block (65) is slidably connected in the T-shaped groove (64). The other ends of the two long rods (63) are respectively fixed to the two T-shaped blocks (65). A buffer spring B (66) is fixed to one end of the T-shaped groove (64) close to the adjacent multi-directional ball (62).
3. The multi-point buffer type mother-daughter door according to claim 1, characterized in that: Riveting rods (7) are fixed to both the main door (2) and the auxiliary door (3). A locking sleeve (8) is rotatably connected to one of the riveting rods (7). A card slot (81) is also formed at the bottom of the locking sleeve (8). When the locking sleeve (8) rotates above the other riveting rod (7), the card slot (81) can be sleeved on the other riveting rod (7).
4. A multi-point buffer type mother and son door according to claim 1, characterized in that: A sealing groove is formed inside the door frame (1), and a sealing strip is installed in the sealing groove.
5. A multi-point buffer type mother and son door according to claim 1, characterized in that: Handles (9) are installed on the front walls of the main door (2) and the auxiliary door (3).