阅读说明：本技术 一种静音实木门 (Mute solid wood door ) 是由 汝涛 臧伟 房松 于 2020-11-02 设计创作，主要内容包括：本发明涉及实木门技术领域,具体的说是一种静音实木门,包括门扇、固定于门扇上的碰铁及固定于墙体上的磁吸装置,所述磁吸装置包括固定于墙体上的安装座,所述安装座内设置有弧形通道,所述弧形通道上端朝向碰铁一侧设置有开口,所述弧形通道内对应设置有能够沿其内部滑动的弧形滑块；所述弧形滑块下端与弧形通道底部之间设置有水平布置的气囊,所述弧形滑块上端延伸至弧形通道的开口外与磁块连接,所述磁块倾斜向下布置且其位置与碰铁的位置相匹配；本发明通过将碰铁与磁块的碰撞面之间设置成一定的夹角,能够通过先由点接触再到面接触的方式来达到降低碰撞声响的效果,同时碰铁是以一定的倾斜角分离的,因此关闭门扇的操作中会更加轻松顺利。(The invention relates to the technical field of solid wood doors, in particular to a mute solid wood door which comprises a door leaf, a touch iron fixed on the door leaf and a magnetic suction device fixed on a wall body, wherein the magnetic suction device comprises an installation seat fixed on the wall body, an arc-shaped channel is arranged in the installation seat, an opening is formed in the upper end of the arc-shaped channel, which faces one side of the touch iron, and an arc-shaped sliding block capable of sliding along the inside of the arc-shaped channel is correspondingly arranged in the arc-shaped channel; a horizontally arranged air bag is arranged between the lower end of the arc-shaped sliding block and the bottom of the arc-shaped channel, the upper end of the arc-shaped sliding block extends out of the opening of the arc-shaped channel and is connected with a magnetic block, the magnetic block is arranged obliquely downwards, and the position of the magnetic block is matched with that of the touch iron; according to the invention, the collision surfaces of the collision iron and the magnetic block are arranged at a certain included angle, so that the effect of reducing collision sound can be achieved by a mode of firstly achieving point contact and then achieving surface contact, and meanwhile, the collision iron is separated at a certain inclination angle, so that the door leaf closing operation is easier and smoother.)

1. A mute solid wood door is characterized by comprising a door leaf (1), a collision iron (3) fixed on the door leaf (1) and a magnetic attraction device fixed on a wall body, wherein the magnetic attraction device comprises an installation seat (4) fixed on the wall body, an arc-shaped channel (5) is arranged in the installation seat (4), an opening is formed in the upper end of the arc-shaped channel (5) and faces one side of the collision iron (3), and an arc-shaped sliding block (6) capable of sliding along the inside of the arc-shaped channel (5) is correspondingly arranged in the arc-shaped channel (5); a horizontally arranged air bag (2) is arranged between the lower end of the arc-shaped sliding block (6) and the bottom of the arc-shaped channel (5), the upper end of the arc-shaped sliding block (6) extends out of the opening of the arc-shaped channel (5) and is connected with a magnetic block (7), the magnetic block (7) is obliquely arranged downwards, and the position of the magnetic block is matched with that of the collision iron (3); an included angle of 5-15 degrees is formed between the end face, facing one side of the touch iron (3), of the magnetic block (7) and the outer side face of the touch iron (3) initially, the magnetic block (7) can enable the arc-shaped sliding block (6) to rotate in the arc-shaped channel (5) along with the approach of the touch iron (3) to the mounting base (4) after being touched with the touch iron (3), the arc-shaped sliding block (6) stops sliding when the end face, facing one side of the touch iron (3), of the magnetic block (7) is completely attached to the outer side face of the touch iron (3), and the effect of reducing the collision sound is achieved through a mode of firstly point contact and then surface contact.

2. The mute solid wood door as claimed in claim 1, wherein the end surface of the magnetic block (7) facing the collision iron (3) is provided with a wear-resistant coating (8), and the upper side of the opening of the arc-shaped channel (5) is provided with an avoiding groove (9) for avoiding the movement of the magnetic block (7).

3. The mute solid wood door as claimed in claim 2, wherein the arc-shaped sliding block (6) and the arc-shaped channel (5) are eccentrically arranged, the upper end and the lower end of the inner side of the arc-shaped sliding block (6) are in contact with the inner side surface of the arc-shaped channel (5), and the middle part of the outer side of the arc-shaped sliding block (6) is in contact with the outer side surface of the arc-shaped channel (5).

4. The mute solid wood door according to claim 3, wherein a sinking groove communicated with the arc-shaped channel (5) is arranged at the lower end of the arc-shaped channel, the sinking groove is vertically arranged, a hydraulic cylinder (18) is arranged at the bottom of the sinking groove, a piston (19) is arranged in the hydraulic cylinder (18), a piston rod (10) which extends into the arc-shaped channel (5) and is contacted with the bottom of the arc-shaped sliding block (6) is arranged in the middle of the upper end of the piston (19), and a plurality of first damping holes (20) communicated with a rodless cavity and a rod cavity are symmetrically arranged at two sides of the piston (19); a pressing plate (16) is arranged on the piston rod (10) outside the hydraulic cylinder (18), a spring (17) is arranged between the pressing plate (16) and the bottom of the sinking groove, and the spring (17) is sleeved outside the hydraulic cylinder (18).

5. The mute solid wood door according to claim 4, wherein a swing plate (21) is hinged to one side in the first damping hole (20), a second damping hole (22) which is through up and down is arranged in the middle of the swing plate (21), and the radius of the second damping hole (22) is smaller than that of the first damping hole (20); the other side in the first damping hole (20) is provided with a limiting groove (23) for limiting the swinging plate (21) to swing downwards, and the swinging plate (21) at least has the following two stations: a first station: the swinging plate (21) is attached to the side wall of the first damping hole (20) and is vertically arranged; and a second station: the free end of the swing plate (21) is attached to the lower end face of the limiting groove (23).

6. A mute solid wood door according to claim 5, wherein a baffle plate (11) which is horizontally arranged is fixed in a sinking groove above the pressure plate (16), and a through hole (13) which is matched with the piston rod (10) is arranged on the baffle plate (11); a plurality of elastic rubber blocks (12) are arranged on the baffle (11) at the periphery of the through hole (13), and the upper ends of the elastic rubber blocks (12) are provided with the through holes (13); a traction rope (15) for closing up is arranged in the through hole (13), and the other end of the traction rope (15) is connected with the lower end of the arc-shaped sliding block (6) close to one side of the air bag (2); the side wall of the sinking groove is correspondingly provided with a wire passing hole (14) matched with the traction rope (15).

Technical Field

The invention relates to the technical field of solid wood doors, in particular to a mute solid wood door.

Background

The door is an important device in a house, the door is always in a random state after being opened, slight air flow can change the opening angle of the door, a hardware product door leaf is designed for preventing unintended change of people, the hardware product door leaf generally comprises a round iron block component fixed on the back of the door leaf and called a touch iron and a magnetic block component fixed on a wall side, the touch iron and the door leaf are fixed together, the magnetic block component is fixed together with the wall side or the ground, the magnetic block and an auxiliary component are in rigid fixed connection, the touch iron is adsorbed by the magnetic attraction of the magnetic block to fix the opened door leaf, the adsorption is very reliable under general conditions, the door leaf directly facing the outside of the house can not be blown easily to change the opening angle, and the hardware product also has problems in the actual use process: when the door leaf is opened and reaches a fixed position, the magnetic adsorption force of the magnetic block can strongly attract the iron block to the door leaf, so that the inertia force of the door leaf is increased, and further, a large collision sound is generated; in addition, when the door leaf needs to be closed and the collision iron and the magnetic block are tried to be pulled open, the operation can be performed by large force, and great effort is required.

The invention designs a mute solid wood door, the collision surfaces of the collision iron and the magnetic block are arranged at a certain included angle, the effect of reducing collision sound can be achieved by a mode of point contact and surface contact, and meanwhile, the collision iron is separated at a certain inclination angle, so that the operation of closing the door leaf is easier and smoother.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problem that the existing door leaf generates large collision noise due to the magnetic adsorption force of the magnetic block when reaching a fixed position, the invention provides the mute solid wood door.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mute solid wood door comprises a door leaf, a touch iron fixed on the door leaf and a magnetic suction device fixed on a wall body, wherein the magnetic suction device comprises a mounting seat fixed on the wall body, an arc-shaped channel is arranged in the mounting seat, an opening is formed in the upper end of the arc-shaped channel, which faces one side of the touch iron, and an arc-shaped sliding block capable of sliding along the inside of the arc-shaped channel is correspondingly arranged in the arc-shaped channel; a horizontally arranged air bag is arranged between the lower end of the arc-shaped sliding block and the bottom of the arc-shaped channel, the upper end of the arc-shaped sliding block extends out of the opening of the arc-shaped channel and is connected with a magnetic block, the magnetic block is arranged obliquely downwards, and the position of the magnetic block is matched with that of the touch iron; the end face of the magnetic block, facing one side of the touch iron, is initially at an included angle of 5-15 degrees with the outer side face of the touch iron, the magnetic block can enable the arc-shaped sliding block to rotate in the arc-shaped channel along with the approach of the touch iron to the mounting base after being touched with the touch iron, the arc-shaped sliding block stops sliding when the end face of the magnetic block, facing one side of the touch iron, is completely attached to the outer side face of the touch iron, and the effect of reducing the collision sound is achieved in a mode of firstly achieving point contact and then achieving surface contact.

When the door leaf is used, the door leaf needs to be opened and is close to the magnetic attraction device, and an included angle of 5-15 degrees is formed between the end face, facing one side of the touch iron, of the magnetic block and the outer side face of the touch iron initially, so that the touch iron is in a point contact mode when in contact with the magnetic block, then the touch iron continuously extrudes the magnetic block, the arc-shaped sliding block is stressed, the bounce of the air bag is overcome, and the arc-shaped sliding block rotates and slides clockwise in the arc-shaped channel, so that the included angle between the touch iron and the magnetic block is reduced to be smaller and smaller until the touch iron and the magnetic block are completely attached to form surface contact; the reason that the door leaf collides to make a sound is mainly caused by that the two collision joint surfaces are quickly attached when the magnet blocks adsorb the collision iron to make collision contact, so that the effect of reducing the collision sound can be achieved by a mode of point contact and surface contact; meanwhile, after the touch iron is attached to the magnetic block, if the touch iron is continuously close to the magnetic block, the collision joint surface of the touch iron and the magnetic block tends to be separated, and the suction force between the touch iron and the magnetic block can block the separation tendency, so that the touch iron can be quickly stopped to be close under the combined action of the suction force and the air bag rebounding force, the probability of collision damage of the door leaf and the mounting seat is reduced, the generation of collision sound is avoided, and the service life of the door leaf is prolonged.

Preferably, the end face, facing one side of the collision iron, of the magnetic block is provided with a wear-resistant coating, and the upper side of the opening of the arc-shaped channel is provided with an avoiding groove for avoiding the motion of the magnetic block. The wear-resistant coating is arranged, so that collision damage between the touch iron and the magnetic block can be reduced, and the touch iron can slide on a collision joint surface of the touch iron in the process of attaching the touch iron and the magnetic block, so that impact energy of a door leaf is consumed in a friction mode, and collision sound between the touch iron and the magnetic block is further reduced; the avoidance groove is arranged, so that the magnetic block can be prevented from being clamped at the opening of the arc-shaped channel to block the rotating and sliding of the arc-shaped sliding block, and the smooth work of the air bag can be ensured; meanwhile, the maximum rotation angle of the magnetic block can be limited by reasonably setting the depth of the avoidance groove, so that the problem that the door leaf is damaged due to collision with the mounting seat due to overlarge rotation angle is avoided, collision noise is avoided, and the service life of the door leaf is prolonged.

Preferably, the arc-shaped sliding block and the arc-shaped channel are eccentrically arranged, the upper end and the lower end of the inner side of the arc-shaped sliding block are in contact with the inner side surface of the arc-shaped channel, and the middle part of the outer side of the arc-shaped sliding block is in contact with the outer side surface of the arc-shaped channel. Through setting up arc slider and arc passageway into eccentric arrangement, can reduce the area of contact between arc slider and the arc passageway, reduce the frictional force between it, avoid the gasbag can not in time the compression of pressurized to reduce the impact and lead to the condition that arc slider shimmys in the arc passageway, consequently avoided the noise because of shimmying causes, improve the silence effect.

Preferably, the lower end of the arc-shaped channel is provided with a sinking groove communicated with the arc-shaped channel, the sinking groove is vertically arranged, the bottom of the sinking groove is provided with a hydraulic cylinder, a piston is arranged in the hydraulic cylinder, the middle part of the upper end of the piston is provided with a piston rod which extends into the arc-shaped channel and is contacted with the bottom of the arc-shaped slide block, and a plurality of first damping holes communicated with the rodless cavity and the rod cavity are symmetrically arranged on two sides of the piston; and a pressing plate is arranged on the piston rod outside the hydraulic cylinder, a spring is arranged between the pressing plate and the bottom of the sinking groove, and the spring is sleeved outside the hydraulic cylinder. Because the arc-shaped sliding block and the arc-shaped channel are eccentrically arranged, when the magnetic block is pressed to enable the arc-shaped sliding block to rotate, the distance between the lower end of the arc-shaped sliding block and the lower end face of the arc-shaped channel can be gradually reduced along with the rotation of the arc-shaped sliding block, so that the arc-shaped sliding block can gradually extrude the piston rod to move downwards in the process, the impact energy consumption of the door leaf is further realized through the buffer action of the hydraulic cylinder and the spring, and the purpose of reducing noise is achieved.

Preferably, a swinging plate is hinged to one side in the first damping hole, a second damping hole which is communicated up and down is arranged in the middle of the swinging plate, and the radius of the second damping hole is smaller than that of the first damping hole; the other side in the first damping hole is provided with a limiting groove for limiting the swinging plate to swing downwards, and the swinging plate at least has the following two stations: a first station: the swinging plate is vertically arranged in a manner of being attached to the side wall of the first damping hole; and a second station: the free end of the swing plate is attached to the lower end face of the limiting groove. Can make when the piston rod moves down through the setting of swing board and spacing groove, the first damping hole is opened in the upset that the swing board makes progress, avoid instantaneous damping too big and make the spring can not produce enough shrink influence piston rod and move down and then lead to the poor problem of buffering effect, and when the spring of compression resets, the swing board can swing the spacing inslot and close first damping hole, second damping hole work this moment, produce great resistance and avoid the vibration noise that the spring rebounded fast when reseing, also avoid upwards ejecting arc slider and make the problem that iron and magnetic path break away from simultaneously.

Preferably, a horizontally arranged baffle is fixed in the sinking groove above the pressure plate, and a through hole matched with the piston rod is formed in the baffle; a plurality of elastic rubber blocks are arranged on the baffle plate at the periphery of the through hole, and through holes are formed in the upper ends of the elastic rubber blocks; a traction rope for closing up is arranged in the through hole, and the other end of the traction rope is connected with the lower end of the arc-shaped sliding block close to one side of the air bag; the side wall of the sinking groove is correspondingly provided with a wire passing hole matched with the traction rope. Through the arrangement of the traction rope, the upper ends of the elastic rubber blocks are close to each other by pulling the traction rope when the arc-shaped sliding block moves to one side of the air bag, so that the elastic rubber blocks are close to the piston rod, and the impact energy of the door leaf is consumed through the friction force between the piston rod and the elastic rubber blocks, so that the purpose of reducing noise is achieved; when the hauling cable is loosened, the elastic rubber block can automatically reset under the action of the self elastic force.

The invention has the following beneficial effects:

1. according to the mute solid wood door, the collision surfaces of the collision iron and the magnetic block are arranged at a certain included angle, so that the effect of reducing collision sound can be achieved in a mode of firstly achieving point contact and then achieving surface contact, and meanwhile, the collision iron is separated at a certain inclination angle, so that the operation of closing the door leaf is easier and smoother.

2. According to the mute solid wood door, the arc-shaped sliding block and the arc-shaped channel are eccentrically arranged, so that the condition that the arc-shaped sliding block vibrates in the arc-shaped channel due to the fact that an air bag cannot be timely compressed to reduce impact can be avoided, noise caused by vibration is avoided, and the mute effect is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the magnetic attraction device of the present invention when the magnetic block is not in contact with the magnet;

FIG. 4 is a cross-sectional view of the magnetic attraction device of the present invention with the magnet engaging with the latch;

FIG. 5 is a partial enlarged view at B in FIG. 3;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

in the figure:

1. a door leaf; 2. an air bag; 3. iron collision; 4. a mounting seat; 5. an arc-shaped channel; 6. an arc-shaped sliding block; 7. a magnetic block; 8. a wear-resistant coating; 9. an avoidance groove; 10. a piston rod; 11. a baffle plate; 12. an elastic rubber block; 13. a through hole; 14. a wire passing hole; 15. a hauling rope; 16. pressing a plate; 17. a spring; 18. a hydraulic cylinder; 19. a piston; 20. a first orifice; 21. a swing plate; 22. a second orifice; 23. a limiting groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a silent solid wood door comprises a door leaf 1, a stop 3 fixed on the door leaf 1, and a magnetic attraction device fixed on a wall, wherein the magnetic attraction device comprises an installation seat 4 fixed on the wall, an arc-shaped channel 5 is arranged in the installation seat 4, an opening is arranged at one side of the upper end of the arc-shaped channel 5, which faces the stop 3, and an arc-shaped sliding block 6 capable of sliding along the inside of the arc-shaped channel 5 is correspondingly arranged in the arc-shaped channel 5; a horizontally arranged air bag 2 is arranged between the lower end of the arc-shaped sliding block 6 and the bottom of the arc-shaped channel 5, the upper end of the arc-shaped sliding block 6 extends out of the opening of the arc-shaped channel 5 and is connected with a magnetic block 7, and the magnetic block 7 is obliquely arranged downwards and is matched with the position of the touch iron 3; an included angle of 5-15 degrees is formed between the end face, facing one side of the touch iron 3, of the magnetic block 7 and the outer side face of the touch iron 3 initially, the magnetic block 7 can enable the arc-shaped sliding block 6 to rotate in the arc-shaped channel 5 along with the approach of the touch iron 3 to the mounting seat 4 after being touched with the touch iron 3, the arc-shaped sliding block 6 stops sliding when the end face, facing one side of the touch iron 3, of the magnetic block 7 is completely attached to the outer side face of the touch iron 3, and the effect of reducing the collision sound is achieved in a mode of firstly achieving point contact and then achieving surface contact.

When the door leaf 1 is used, the door leaf 1 needs to be opened and approaches to the magnetic attraction device, because the end face of the magnet 7, facing one side of the touch iron 3, is at an initial included angle of 5-15 degrees with the outer side face of the touch iron 3, when the touch iron 3 is in contact with the magnet 7, the touch iron 3 continuously extrudes the magnet 7, the arc-shaped slide block 6 is stressed and overcomes the rebound force of the air bag 2 to rotate and slide clockwise in the arc-shaped channel 5, so that the included angle between the touch iron 3 and the magnet 7 is smaller and smaller until the touch iron is completely attached to form surface contact, in the process, the impact energy of the door leaf 1 is consumed due to the continuous rebound force of the air bag 2, the collision between the touch iron 3 and the magnet 7 can be reduced, otherwise, in the process that the touch iron 3 is separated from the magnet 7 when the door leaf 1 needs to be closed, the touch iron 3 is separated at a, therefore, the operation of closing the door leaf 1 is easier and smoother; the reason that the door leaf 1 collides to make a sound is mainly caused by that the two collision joint surfaces are quickly attached when the magnet 7 adsorbs the impact iron 3 to collide and contact, so that the effect of reducing collision sound can be achieved by a mode of point contact and surface contact; meanwhile, after the touch iron 3 is attached to the magnetic block 7, if the touch iron 3 continues to approach, the collision joint surface of the touch iron 3 and the magnetic block 7 tends to separate, and the attraction between the touch iron 3 and the magnetic block hinders the separation tendency, so that the touch iron 3 can be rapidly stopped to approach under the combined action of the attraction and the rebounding force of the air bag 2, the probability of collision damage of the door leaf 1 and the mounting seat 4 is reduced, the generation of collision sound is avoided, and meanwhile, the service life of the door leaf 1 is prolonged.

As an embodiment of the invention, a wear-resistant coating 8 is arranged on the end surface of one side of the magnetic block 7 facing the collision iron 3, and an avoiding groove 9 for avoiding the movement of the magnetic block 7 is arranged on the upper side of the opening of the arc-shaped channel 5. The wear-resistant coating 8 is arranged, so that collision damage between the collision iron 3 and the magnetic block 7 can be reduced, and the collision iron 3 can slide on a collision joint surface of the collision iron 3 in the process of attaching the collision iron 3 to the magnetic block 7, so that the impact energy of the door leaf 1 is consumed in a friction mode, and the collision sound between the collision iron 3 and the magnetic block 7 is further reduced; the avoidance groove 9 is arranged to prevent the magnetic block 7 from being blocked at the opening of the arc-shaped channel 5 to block the rotating and sliding of the arc-shaped slide block 6, so that the air bag 2 can work smoothly; meanwhile, the maximum rotation angle of the magnetic block 7 can be limited by reasonably setting the depth of the avoiding groove 9, so that the problem that the door leaf 1 and the mounting seat 4 are damaged due to collision caused by overlarge rotation angle is avoided, collision noise is avoided, and the service life of the door leaf 1 is prolonged.

As an embodiment of the invention, the arc-shaped sliding block 6 and the arc-shaped channel 5 are eccentrically arranged, the upper end and the lower end of the inner side of the arc-shaped sliding block 6 are in contact with the inner side surface of the arc-shaped channel 5, and the middle part of the outer side of the arc-shaped sliding block 6 is in contact with the outer side surface of the arc-shaped channel 5. Through setting up arc slider 6 and arc passageway 5 into eccentric arrangement, can reduce the area of contact between arc slider 6 and the arc passageway 5, reduce the frictional force between it, avoid gasbag 2 can not in time the pressurized compression to reduce the impact and lead to the condition that arc slider 6 shimmys in arc passageway 5, consequently avoided the noise because of shimmying and caused, improve the silence effect.

As an embodiment of the invention, the lower end of the arc-shaped channel 5 is provided with a sinking groove communicated with the arc-shaped channel, the sinking groove is vertically arranged, the bottom of the sinking groove is provided with a hydraulic cylinder 18, a piston 19 is arranged in the hydraulic cylinder 18, the middle part of the upper end of the piston 19 is provided with a piston rod 10 which extends into the arc-shaped channel 5 and is contacted with the bottom of the arc-shaped slide block 6, and a plurality of first damping holes 20 communicated with a rodless cavity and a rod cavity are symmetrically arranged on two sides of the piston 19; a pressure plate 16 is arranged on the piston rod 10 outside the hydraulic cylinder 18, a spring 17 is arranged between the pressure plate 16 and the bottom of the sinking groove, and the spring 17 is sleeved outside the hydraulic cylinder 18. Because the arc-shaped sliding block 6 and the arc-shaped channel 5 are eccentrically arranged, when the magnetic block 7 is pressed to enable the arc-shaped sliding block 6 to rotate, the distance from the lower end of the arc-shaped sliding block 6 to the lower end face of the arc-shaped channel 5 can be gradually reduced along with the rotation of the arc-shaped sliding block 6, so that in the process, the arc-shaped sliding block 6 can gradually extrude the piston rod 10 to enable the piston rod to move downwards, the impact energy consumption on the door leaf 1 is further realized through the buffer effect of the hydraulic cylinder 18 and the spring 17, and the purpose of reducing noise is achieved.

As an embodiment of the present invention, a swing plate 21 is hinged to one side inside the first damping hole 20, a second damping hole 22 penetrating up and down is arranged in the middle of the swing plate 21, and the radius of the second damping hole 22 is smaller than that of the first damping hole 20; the other side in the first damping hole 20 is provided with a limiting groove 23 for limiting the swinging plate 21 to swing downwards, and the swinging plate 21 at least has the following two stations: a first station: the swinging plate 21 is attached to the side wall of the first damping hole 20 and is vertically arranged; and a second station: the free end of the swing plate 21 is fitted to the lower end surface of the stopper groove 23. Can make when piston rod 10 moves down through the setting of swing board 21 and spacing groove 23, swing board 21 upwards overturns and opens first damping hole 20, avoid instantaneous damping too big and make spring 17 can not produce enough shrink influence piston rod 10 and move down and then lead to the poor problem of buffering effect, and when the spring 17 of compression resets, swing board 21 can swing in spacing groove 23 and close first damping hole 20, second damping hole 22 work this moment, produce great resistance and avoid spring 17 to kick-back the vibration noise that arouses fast when resetting, also avoid upwards ejecting arc slider 6 and make the problem that hits iron 3 and magnetic path 7 and break away from simultaneously.

In one embodiment of the present invention, a horizontally arranged baffle plate 11 is fixed in a sinking groove above the pressure plate 16, and the baffle plate 11 is provided with a through hole 13 matched with the piston rod 10; a plurality of elastic rubber blocks 12 are arranged on the baffle 11 at the periphery of the through hole 13, and the upper ends of the elastic rubber blocks 12 are provided with the through holes 13; a traction rope 15 for closing is arranged in the through hole 13, and the other end of the traction rope 15 is connected with the lower end of the arc-shaped sliding block 6 close to one side of the air bag 2; and the side wall of the sinking groove is correspondingly provided with a wire passing hole 14 matched with the traction rope 15. Through the arrangement of the traction rope 15, when the arc-shaped sliding block 6 moves to one side of the air bag 2, the upper ends of the elastic rubber blocks 12 are close to each other through the pulling of the traction rope 15, so that the elastic rubber blocks 12 are close to the piston rod 10, the impact energy of the door leaf 1 is consumed through the friction force between the piston rod 10 and the elastic rubber blocks 12, and the purpose of reducing noise is achieved; when the traction rope 15 is loosened, the elastic rubber block 12 can automatically reset under the action of the self elasticity.

When the door leaf 1 is used, the door leaf 1 needs to be opened and approaches to the magnetic attraction device, because the end face of the magnet 7, facing one side of the touch iron 3, is at an initial included angle of 5-15 degrees with the outer side face of the touch iron 3, when the touch iron 3 is in contact with the magnet 7, the touch iron 3 continuously extrudes the magnet 7, the arc-shaped slide block 6 is stressed and overcomes the rebound force of the air bag 2 to rotate and slide clockwise in the arc-shaped channel 5, so that the included angle between the touch iron 3 and the magnet 7 is smaller and smaller until the touch iron is completely attached to form surface contact, in the process, the impact energy of the door leaf 1 is consumed due to the continuous rebound force of the air bag 2, the collision between the touch iron 3 and the magnet 7 can be reduced, otherwise, in the process that the touch iron 3 is separated from the magnet 7 when the door leaf 1 needs to be closed, the touch iron 3 is separated at a, therefore, the operation of closing the door leaf 1 is easier and smoother; the reason that the door leaf 1 collides to make a sound is mainly caused by that the two collision joint surfaces are quickly attached when the magnet 7 adsorbs the impact iron 3 to collide and contact, so that the effect of reducing collision sound can be achieved by a mode of point contact and surface contact; meanwhile, after the touch iron 3 is attached to the magnetic block 7, if the touch iron 3 is continuously close to the magnetic block 7, the collision joint surface of the touch iron 3 and the magnetic block 7 tends to be separated, and the suction force between the touch iron 3 and the magnetic block can block the separation tendency, so that the touch iron 3 can be quickly stopped to be close under the combined action of the suction force and the bounce of the air bag 2, the probability of collision damage of the door leaf 1 and the mounting seat 4 is reduced, the generation of collision sound is avoided, and the service life of the door leaf 1 is prolonged; the wear-resistant coating 8 is arranged, so that collision damage between the collision iron 3 and the magnetic block 7 can be reduced, and the collision iron 3 can slide on a collision joint surface of the collision iron 3 in the process of attaching the collision iron 3 to the magnetic block 7, so that the impact energy of the door leaf 1 is consumed in a friction mode, and the collision sound between the collision iron 3 and the magnetic block 7 is further reduced; the avoidance groove 9 is arranged to prevent the magnetic block 7 from being blocked at the opening of the arc-shaped channel 5 to block the rotating and sliding of the arc-shaped slide block 6, so that the air bag 2 can work smoothly; meanwhile, the maximum rotation angle of the magnetic block 7 can be limited by reasonably setting the depth of the avoiding groove 9, so that the problem that the door leaf 1 and the mounting seat 4 are damaged due to collision caused by overlarge rotation angle is avoided, collision noise is avoided, and the service life of the door leaf 1 is prolonged; the arc-shaped sliding block 6 and the arc-shaped channel 5 are arranged eccentrically, so that the contact area between the arc-shaped sliding block 6 and the arc-shaped channel 5 can be reduced, the friction force between the arc-shaped sliding block and the arc-shaped channel 5 is reduced, and the condition that the arc-shaped sliding block 6 vibrates in the arc-shaped channel 5 due to the fact that the air bag 2 cannot be compressed in time to reduce impact is avoided, so that noise caused by vibration is avoided, and the silencing effect is improved; because the arc-shaped sliding block 6 and the arc-shaped channel 5 are eccentrically arranged, when the magnetic block 7 is pressed to enable the arc-shaped sliding block 6 to rotate, the distance between the lower end of the arc-shaped sliding block 6 and the lower end face of the arc-shaped channel 5 is gradually reduced along with the rotation of the arc-shaped sliding block 6, in the process, the arc-shaped sliding block 6 can gradually extrude the piston rod 10 to move downwards, and further the impact energy consumption on the door leaf 1 is realized through the buffer action of the hydraulic cylinder 18 and the spring 17, so that the purpose of reducing noise is achieved; through the arrangement of the swing plate 21 and the limiting groove 23, when the piston rod 10 moves downwards, the swing plate 21 turns upwards to open the first damping hole 20, so that the problem that the spring 17 cannot shrink enough to influence the downward movement of the piston rod 10 and further cause poor buffering effect is avoided, when the compressed spring 17 resets, the swing plate 21 can swing into the limiting groove 23 and close the first damping hole 20, at the moment, the second damping hole 22 works to generate larger resistance to avoid vibration noise caused by quick rebound when the spring 17 resets, and meanwhile, the problem that the arc-shaped sliding block 6 is pushed upwards to cause the separation of the impact iron 3 and the magnetic block 7 is also avoided; through the arrangement of the traction rope 15, when the arc-shaped sliding block 6 moves to one side of the air bag 2, the upper ends of the elastic rubber blocks 12 are close to each other through the pulling of the traction rope 15, so that the elastic rubber blocks 12 are close to the piston rod 10, the impact energy of the door leaf 1 is consumed through the friction force between the piston rod 10 and the elastic rubber blocks 12, and the purpose of reducing noise is achieved; when the traction rope 15 is loosened, the elastic rubber block 12 can automatically reset under the action of the self elasticity.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.