A magnetic buffer device for preventing collision of a bathroom door

Abstract

The utility model relates to a flat -open door anti -collision technical field especially relates to a kind of anti -collision magnetic force buffer device for kitchen and bathroom door, including magnetic attraction seat and fixed seat, magnetic attraction seat includes shell and the magnetic attraction subassembly being set in shell, the hollow structure in the inside of shell, the open mouth structure to the side of shell towards glass door leaf, magnetic attraction subassembly includes magnetic attraction plate and buffer spring, buffer spring is connected in the groove bottom of shell, the end portion of buffer spring exceeds the open mouth of shell in its natural extension state, magnetic attraction plate is connected in the end portion of buffer spring, magnetic attraction plate is used to adsorb fixed seat, buffer spring is in compression state when glass door leaf is closed, and magnetic attraction plate is housed in the shell containing cavity. Compared with traditional rubber buffer strip, the mode that magnetic force adsorption is combined spring buffer has more lasting buffering performance, and is not easy to fail due to aging, reduces the frequency and cost of maintenance replacement.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision technology for swing doors, and in particular to an anti-collision magnetic buffer device for kitchen and bathroom doors. Background Technology

[0002] In modern home decoration, tempered glass hinged doors are increasingly used for kitchens in pursuit of spatial transparency and aesthetics. However, in actual use, if a glass door is subjected to a large external impact when closed, the glass is very likely to shatter due to the collision, causing not only property damage but also potentially endangering personal safety.

[0003] Traditional kitchen and bathroom hinged glass doors rely heavily on rubber buffer strips for impact protection. These strips absorb collision energy by being attached to the edges of the door or frame. However, rubber is prone to aging, hardening, and cracking over time, which significantly reduces its buffering effect. Regular replacement and maintenance are required, increasing usage costs and the complexity of maintenance.

[0004] Therefore, there is an urgent need for a stable, durable, and maintenance-free anti-collision device to address the shortcomings of traditional rubber buffer strips and improve the safety and durability of kitchen and bathroom doors. Utility Model Content

[0005] The purpose of this utility model is to address the problem that existing technologies for anti-collision of kitchen and bathroom glass doors mostly rely on rubber buffer strips, which absorb collision energy by attaching rubber strips to the edge of the door or frame. However, rubber materials are prone to aging, hardening, and cracking after long-term use, resulting in a significant decrease in buffering effect. Regular replacement and maintenance are required, which increases the cost of use and the inconvenience of maintenance. This utility model provides an anti-collision magnetic buffer device for kitchen and bathroom doors.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A magnetic anti-collision buffer device for kitchen and bathroom doors includes a magnetic base and a fixing base. The magnetic base is installed on the top of the door frame, and the fixing base is installed on the glass door leaf. The magnetic base includes a housing and a magnetic component disposed within the housing. The housing has a hollow internal structure, and the side of the housing facing the glass door leaf is an open structure. The magnetic component includes a magnetic plate and a buffer spring. The buffer spring is connected to the bottom of the groove of the housing. In its naturally extended state, the end of the buffer spring extends beyond the open opening of the housing. The magnetic plate is connected to the end of the buffer spring and is used to attract the fixing base. When the glass door leaf is closed, the buffer spring is in a compressed state, and the magnetic plate is housed within the receiving cavity of the housing.

[0007] Preferably, a limiting rod is also connected to the magnetic suction plate, a limiting hole is provided at the bottom of the groove of the housing, the limiting rod passes through the limiting hole, and a limiting ring is also provided on one side of the end of the limiting rod. When the buffer spring is in its naturally extended state, the limiting ring abuts against the outer bottom wall of the housing.

[0008] Preferably, the limiting ring is threadedly connected to the limiting rod, and the fixed position of the limiting ring on the limiting rod is adjustable.

[0009] Preferably, the side of the limiting ring that contacts the housing is provided with a rubber pad layer.

[0010] Preferably, the magnetic plate includes a magnetic plate and a snap-fit ​​base, wherein the magnetic plate and the snap-fit ​​base are detachably connected.

[0011] Preferably, the housing is further provided with a limiting protrusion; the snap-fit ​​base is provided with a first sliding channel and a second sliding channel, the surface of the magnetic plate is provided with a through hole, the first sliding channel is horizontally arranged and penetrates the contact surface between the snap-fit ​​base and the magnetic plate, the second sliding channel is vertically arranged and penetrates the bottom of the snap-fit ​​base, the first sliding channel is further provided with a pushing member, and the second sliding channel is further provided with a positioning member; The pushing member includes a push rod, a triangular wedge, and a first return spring. The push rod passes through the first sliding channel and is connected to the triangular wedge. The first return spring is connected to the triangular wedge. In the naturally extended state of the first return spring, the end of the push rod passes through the through hole. When the magnetic plate attracts the fixing seat, the first return spring is compressed, and the end of the push rod retracts into the through hole. The positioning component includes a force transmission rod, a folding rod, and a second return spring. The force transmission rod passes through the second sliding channel. One end of the force transmission rod abuts against the inclined surface of the triangular wedge, and the other end is connected to the folding rod. The folding rod can rotate towards the side where the magnetic plate is located, with the central axis of the force transmission rod as the dividing line. The second return spring abuts against the force transmission rod. When the end of the push rod passes through the through hole, the second return spring is in a naturally extended state, and the folding rod is stored in the second sliding channel. When the end of the push rod retracts into the through hole, the second return spring is in a compressed state, and the folding rod extends out from the second sliding channel, with the end of the folding rod exceeding the top surface of the limiting protrusion.

[0012] Preferably, the contact end between the force transmission rod and the triangular wedge is configured as an arc structure.

[0013] Preferably, a groove is provided on the inclined surface of the triangular wedge, and the end of the force transmission rod abuts in the groove.

[0014] Preferably, the limiting protrusion is made of rubber material.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This utility model discloses an anti-collision magnetic buffer device for kitchen and bathroom doors. During the closing process of the glass door, the fixed base gradually approaches the magnetic base. The magnetic plate, under magnetic force, generates an attraction force on the fixed base. As the glass door continues to move, the fixed base presses the magnetic plate into the housing. At this time, the buffer spring is compressed, and the elastic deformation of the buffer spring absorbs the kinetic energy of the closing glass door, effectively reducing the impact force and preventing damage to the glass door due to direct hard impact. Compared with traditional rubber buffer strips, the combination of magnetic attraction and spring buffering has more durable buffering performance and is less prone to failure due to aging, reducing the frequency and cost of maintenance and replacement. Furthermore, after the glass door is closed, the magnetic plate and the buffer spring are housed within the housing cavity, resulting in a concealed overall design that does not affect the aesthetics of the kitchen and bathroom door. Furthermore, in this embodiment, the end of the buffer spring extends beyond the open opening of the housing in its naturally extended state. After the fixing seat is attracted to the magnetic seat, the elastic support of the buffer spring allows the glass door to be stably suspended in a half-open position. This prevents the formation of a negative pressure environment in the kitchen when the range hood is turned on, which would otherwise hinder the exhaust of fumes. 2. The anti-collision magnetic buffer device for kitchen and bathroom doors described in this utility model is configured such that when the fixing seat is separated from the magnetic suction plate, the magnetic suction plate is located within the receiving cavity of the housing. Thus, the fixing seat separates from the magnetic suction plate simultaneously with the door lock unlocking, making the door opening smoother, effectively eliminating any sense of obstruction, and improving user comfort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the separation of the magnetic base and the fixed base when the glass door is opened; Figure 2 This is a schematic diagram of the structure in which the magnetic base and the fixed base adhere to each other when the glass door is closed; Figure 3 This is a schematic diagram of the structure in which the end of the push rod passes through the through hole and the folding rod is stored in the second sliding channel when the magnetic base is separated from the fixed base; Figure 4 yes Figure 3 A schematic diagram of the structure of A in the middle; Figure 5 yes Figure 3 A schematic diagram of the structure of B in the middle; Figure 6 This is a schematic diagram of the structure in which the push rod end retracts into the through hole and the folding rod extends out from the second sliding channel when the magnetic base and the fixed base are attracted to each other. Figure 7 yes Figure 6 A schematic diagram of the structure of C; Figure 8 yes Figure 6 A schematic diagram of the structure of D.

[0017] The markings in the diagram are: 1-Magnetic base, 2-Fixed base, 3-Housing, 4-Magnetic assembly, 5-Magnetic plate, 6-Buffer spring, 7-Limiting rod, 8-Limiting hole, 9-Limiting ring, 10-Magnetic plate, 11-Snap-fit ​​base, 12-Limiting protrusion, 13-First sliding channel, 14-Second sliding channel, 15-Through hole, 16-Pushing component, 17-Positioning component, 18-Push rod, 19-Triangular wedge, 20-First return spring, 21-Force transmission rod, 22-Folding rod, 23-Second return spring. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] Example 1: As Figure 1 and Figure 2 As shown, the present invention discloses an anti-collision magnetic buffer device for kitchen and bathroom doors, comprising a magnetic base 1 and a fixing base 2. The magnetic base 1 is installed on the top of the door frame, and the fixing base 2 is installed on the glass door leaf. The magnetic base 1 includes a housing 3 and a magnetic component 4 disposed within the housing 3. The housing 3 has a hollow internal structure, and the side of the housing 3 facing the glass door leaf is an open structure. The magnetic component 4 includes a magnetic plate 5 and a buffer spring 6. The buffer spring 6 is connected to the bottom of the groove of the housing 3. In its naturally extended state, the end of the buffer spring 6 extends beyond the open opening of the housing 3. The magnetic plate 5 is connected to the end of the buffer spring 6. The magnetic plate 5 is used to attract the fixing base 2. When the glass door leaf is closed, the buffer spring 6 is in a compressed state, and the magnetic plate 5 is housed within the receiving cavity of the housing 3.

[0021] The novel anti-collision magnetic buffer device for kitchen and bathroom doors utilizes a method where, during the closing of the glass door, the fixed base 2 gradually approaches the magnetic base 1. The magnetic plate 5, under magnetic force, attracts the fixed base 2. As the glass door continues to move, the fixed base 2 compresses the magnetic plate 5, pushing it into the housing 3. At this time, the buffer spring 6 is compressed, and its elastic deformation absorbs the kinetic energy of the closing glass door, effectively mitigating the impact and preventing damage from direct, hard collisions. Compared to traditional rubber buffer strips, the combination of magnetic attraction and spring buffering provides more durable buffering performance and is less prone to failure due to aging, reducing maintenance frequency and costs. Furthermore, after the glass door is fully closed, the magnetic plate 5 and the buffer spring 6 are housed within the housing 3's recessed cavity, resulting in a concealed design that does not affect the aesthetics of the kitchen and bathroom door.

[0022] Furthermore, in this embodiment, the end of the buffer spring 6 extends beyond the open opening of the housing 3 in its naturally extended state. After the fixing seat 2 is attracted to the magnetic seat 1, the elastic support of the buffer spring 6 allows the glass door to be stably suspended in a half-open position. This prevents the formation of a negative pressure environment in the kitchen when the range hood is turned on, which would otherwise hinder the exhaust of cooking fumes.

[0023] Example 2: As Figure 1 and Figure 2 As shown, the present invention provides an anti-collision magnetic buffer device for kitchen and bathroom doors. In addition to the above-mentioned method, the magnetic suction plate 5 is further connected to a limiting rod 7, and the bottom of the housing 3 is provided with a limiting hole 8. The limiting rod 7 passes through the limiting hole 8, and a limiting ring 9 is provided on one side of the end of the limiting rod 7. When the buffer spring 6 is in a naturally extended state, the limiting ring 9 abuts against the outer bottom wall of the housing 3.

[0024] The limiting rod 7 in this embodiment prevents the buffer spring 6 from shifting or wobbling during compression / extension, thus ensuring that the magnetic suction plate 5 always moves along the axial direction of the housing 3, improving the reliability and stability of this invention in actual use. Furthermore, by using the limiting rod 7 in conjunction with the limiting ring 9, the maximum extension of the buffer spring 6 can be limited, preventing the buffer spring 6 from undergoing plastic deformation due to excessive stretching when the fixed seat 2 separates from the magnetic suction plate 5, thereby ensuring the long-term stability of the elastic performance of the buffer spring 6.

[0025] In a preferred embodiment, based on the above method, the limiting ring 9 is further threadedly connected to the limiting rod 7, and the fixed position of the limiting ring 9 on the limiting rod 7 is adjustable.

[0026] In this embodiment, by rotating the limiting ring 9, its fixed position on the limiting rod 7 can be changed, thereby adjusting the length of the magnetic suction plate 5 extending out of the opening of the housing 3. This allows for flexible adjustment of the half-open suspension position of the glass door to accommodate different kitchen fume volumes or user habits regarding the door opening angle. For example, when there is a lot of fume, the position of the limiting ring 9 can be adjusted to increase the extension length of the magnetic suction plate 5, resulting in a larger half-open angle of the glass door and enhanced kitchen ventilation. Conversely, when there is less fume, the extension length of the magnetic suction plate 5 can be reduced to prevent the door from opening too wide and causing loss of indoor air conditioning or heating. Furthermore, the threaded connection makes the adjustment simple and convenient, allowing users to complete the adjustment themselves without the need for professional tools.

[0027] In a preferred embodiment, based on the above method, a rubber pad is further provided on the side of the limiting ring 9 that contacts the housing 3. With this structural arrangement, when the limiting ring 9 abuts against the outer bottom wall of the housing 3, the rubber pad can effectively buffer the impact force at the moment of contact between the two, avoiding wear or noise caused by direct collision of metal materials.

[0028] In a preferred embodiment, based on the above method, the magnetic plate 5 further includes a magnetic plate 10 and a snap-fit ​​base 11, wherein the magnetic plate 10 and the snap-fit ​​base 11 are detachably connected.

[0029] Specifically, in this embodiment, the magnetic plate 10 and the snap-fit ​​base 11 are connected by bolts. This structural design facilitates the individual replacement of the magnetic plate 10 when its magnetic force weakens or is damaged, without requiring the complete disassembly of the magnetic attraction assembly 4, thus reducing maintenance costs and operational difficulty. Furthermore, in this embodiment, the magnetic plate 10 with different magnetic strengths can be replaced according to actual usage needs to adapt to glass door panels of different weights, enhancing the versatility and flexibility of the device.

[0030] Example 3: As Figures 3 to 8 As shown, the present invention provides an anti-collision magnetic buffer device for kitchen and bathroom doors. Further, based on the above-described method, the housing 3 is provided with a limiting protrusion 12; the snap-fit ​​base 11 is provided with a first sliding channel 13 and a second sliding channel 14; the surface of the magnetic plate 10 is provided with a through hole 15; the first sliding channel 13 is horizontally arranged and penetrates the contact surface between the snap-fit ​​base 11 and the magnetic plate 10; the second sliding channel 14 is vertically arranged and penetrates the bottom of the snap-fit ​​base 11; a pushing member 16 is also provided in the first sliding channel 13; and a positioning member 17 is also provided in the second sliding channel 14. The pushing member 16 includes a push rod 18, a triangular wedge 19, and a first return spring 20. The push rod 18 passes through the first sliding channel 13 and is connected to the triangular wedge 19. The first return spring 20 is connected to the triangular wedge 19. In the naturally extended state of the first return spring 20, the end of the push rod 18 protrudes through the through hole 15. When the magnetic plate 10 attracts the fixing seat 2, the first return spring 20 is compressed, and the end of the push rod 18 retracts into the through hole 15. The positioning component 17 includes a force transmission rod 21, a folding rod 22, and a second return spring 23. The force transmission rod 21 is inserted into the second sliding channel 14. One end of the force transmission rod 21 abuts against the inclined surface of the triangular wedge block 19, and the other end is connected to the folding rod 22. The folding rod 22 can rotate toward the side where the magnetic plate 10 is located, with the central axis of the force transmission rod 21 as the dividing line. The second return spring 23 abuts against the force transmission rod 21. When the end of the push rod 18 passes through the through hole 15, the second return spring 23 is in a naturally extended state. At this time, the folding rod 22 is stored in the second sliding channel 14. When the end of the push rod 18 retracts into the through hole 15, the second return spring 23 is in a compressed state. At this time, the folding rod 22 extends out from the second sliding channel 14, and the end of the folding rod 22 extends beyond the top surface of the limiting protrusion 12.

[0031] Specifically, during the closing process of the glass door, when the fixing seat 2 contacts the magnetic plate 10 and generates an adsorption force, the fixing seat 2 applies pressure to the push rod 18, causing the push rod 18 to retract into the first sliding channel. The push rod 18 drives the triangular wedge block 19 to move horizontally synchronously, compressing the first return spring 20. During this process, the inclined surface of the triangular wedge block 19 generates a downward pushing force on the force transmission rod 21, forcing the force transmission rod 21 to move downward along the second sliding channel and compress the second return spring 23. When the end of the push rod 18 retracts into the through hole 15, the folding rod 22 extends completely from the second sliding channel 14. As the glass door continues to move, the fixing seat 2 presses the magnetic plate 5 into the housing 3. During this process, the folding rod 22 will abut against the limiting protrusion 12, and the folding rod 22 will rotate toward the side where the magnetic plate 10 is located. When the glass door is completely closed, the folding rod 22 completely passes the limiting protrusion 12. When the glass door is opened, the folding rod 22 remains in contact with the limiting protrusion 12. Since the folding rod 22 can only rotate towards the side where the magnetic plate 10 is located, the pushing force exerted by the buffer spring 6 on the magnetic suction plate 5 cannot be released. When the fixed seat 2 separates from the magnetic suction plate 5, the first return spring 20 returns to its natural extended state, causing the triangular wedge 19 and the push rod 18 to move in opposite directions, and the end of the push rod 18 re-exits the through hole 15. At the same time, the pressure of the inclined surface of the triangular wedge 19 on the force transmission rod 21 disappears, and the second return spring 23 pushes the force transmission rod 21 upward. The folding rod 22 moves upward and is stored in the second sliding channel 14, releasing the contact with the limiting protrusion 12. At this time, the buffer spring 6 extends, pushing the magnetic suction plate 5 out of the opening of the housing 3 and returning to its initial state.

[0032] In this embodiment, it is considered that in the above-described implementation, the separation of the fixing seat 2 from the magnetic plate 5 requires the buffer spring 6 to return to its naturally extended state. This results in the door unlocking requiring two stages: the first stage is door lock unlocking, and the second stage is the separation of the fixing seat 2 from the magnetic plate 5. This method leads to a strong sense of resistance when opening the door, affecting the user experience. In this embodiment, when the fixing seat 2 separates from the magnetic plate 5, the magnetic plate 5 is located within the receiving cavity of the housing 3. Thus, the fixing seat 2 separates from the magnetic plate 5 simultaneously with door lock unlocking, making door opening smoother, effectively eliminating the sense of resistance, and improving user comfort.

[0033] In a preferred embodiment, based on the above method, the abutting end of the force transmission rod 21 and the triangular wedge block 19 is further configured as an arc structure. A groove is also provided on the inclined surface of the triangular wedge block 19, and the end of the force transmission rod 21 abuts within the groove.

[0034] The arc-shaped structure design effectively reduces the frictional resistance between the force transmission rod 21 and the inclined surface of the triangular wedge 19, making their relative movement smoother, avoiding jamming, and ensuring the stability of the pushing process. Simultaneously, the end of the force transmission rod 21 abuts against the groove on the inclined surface of the triangular wedge 19. The groove guides and limits the movement trajectory of the force transmission rod 21, preventing lateral deviation or detachment from the inclined surface of the triangular wedge 19 during force application. This ensures efficient force transmission and structural stability, further enhancing the reliability of the entire buffer device during dynamic operation.

[0035] As a preferred embodiment, based on the above method, the limiting protrusion 12 is further made of rubber material.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic anti-collision buffer device for kitchen and bathroom doors, characterized in that, The device includes a magnetic base and a fixed base. The magnetic base is installed on the top of the door frame, and the fixed base is installed on the glass door leaf. The magnetic base includes a housing and a magnetic assembly disposed within the housing. The housing has a hollow internal structure, and the side of the housing facing the glass door leaf is an open structure. The magnetic assembly includes a magnetic plate and a buffer spring. The buffer spring is connected to the bottom of the groove of the housing. In its naturally extended state, the end of the buffer spring extends beyond the open opening of the housing. The magnetic plate is connected to the end of the buffer spring and is used to attract the fixed base. When the glass door leaf is closed, the buffer spring is in a compressed state, and the magnetic plate is housed within the receiving cavity of the housing.

2. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 1, characterized in that, The magnetic plate is also connected to a limiting rod, and the bottom of the groove of the housing is provided with a limiting hole. The limiting rod passes through the limiting hole, and a limiting ring is provided on one side of the end of the limiting rod. When the buffer spring is in its naturally extended state, the limiting ring abuts against the outer bottom wall of the housing.

3. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 2, characterized in that, The limiting ring is threadedly connected to the limiting rod, and the fixed position of the limiting ring on the limiting rod is adjustable.

4. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 3, characterized in that, A rubber pad layer is provided on the side of the limiting ring that contacts the housing.

5. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 4, characterized in that, The magnetic plate includes a magnetic plate and a snap-fit ​​base, wherein the magnetic plate and the snap-fit ​​base are detachably connected.

6. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 5, characterized in that, The housing is also provided with a limiting protrusion; the snap-fit ​​base is provided with a first sliding channel and a second sliding channel inside, the surface of the magnetic plate is provided with a through hole, the first sliding channel is horizontally arranged and penetrates the contact surface between the snap-fit ​​base and the magnetic plate, the second sliding channel is vertically arranged and penetrates the bottom of the snap-fit ​​base, the first sliding channel is also provided with a pushing member, and the second sliding channel is also provided with a positioning member; The pushing member includes a push rod, a triangular wedge, and a first return spring. The push rod passes through the first sliding channel and is connected to the triangular wedge. The first return spring is connected to the triangular wedge. In the naturally extended state of the first return spring, the end of the push rod passes through the through hole. When the magnetic plate attracts the fixing seat, the first return spring is compressed, and the end of the push rod retracts into the through hole. The positioning component includes a force transmission rod, a folding rod, and a second return spring. The force transmission rod passes through the second sliding channel. One end of the force transmission rod abuts against the inclined surface of the triangular wedge, and the other end is connected to the folding rod. The folding rod can rotate towards the side where the magnetic plate is located, with the central axis of the force transmission rod as the dividing line. The second return spring abuts against the force transmission rod. When the end of the push rod passes through the through hole, the second return spring is in a naturally extended state, and the folding rod is stored in the second sliding channel. When the end of the push rod retracts into the through hole, the second return spring is in a compressed state, and the folding rod extends out from the second sliding channel, with the end of the folding rod exceeding the top surface of the limiting protrusion.

7. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 6, characterized in that, The contact end between the force transmission rod and the triangular wedge is configured as an arc structure.

8. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 7, characterized in that, The inclined surface of the triangular wedge is also provided with a groove, and the end of the force transmission rod abuts in the groove.

9. The anti-collision magnetic buffer device for kitchen and bathroom doors according to claim 8, characterized in that, The limiting protrusion is made of rubber material.

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