A compact magnetic buffer door

Abstract

The present invention provides a compact magnetic buffer door stopper, which belongs to the field of door stopper technology. It solves the technical problem that the buffer damping of the existing door stopper is relatively hard and will bounce off when the door body is closed. The compact magnetic buffer door stopper includes a base, a damping plate that can slide back and forth is provided in the base, and a metal plate that can swing up and down along the sliding direction of the damping plate is connected to the rear end of the damping plate, and a buffer device that provides resistance for the damping plate to move backward is provided between the damping plate and the base, and friction blocks that can move left and right are provided between the left and right sides of the damping plate and the base. When the damping plate slides back and forth, the damping plate can rub against the friction block or drive the friction block to rub against the base. When the damping plate slides forward, the pressing force on the friction block in the left and right directions is greater than the pressing force on the friction block in the left and right directions when the damping plate slides backward. The present invention can effectively alleviate the phenomenon of bouncing off.

Description

Technical Field

[0001] The invention belongs to the technical field of door stops and relates to a compact magnetic stopper buffer door stopper. Background Art

[0002] In order to prevent the door from rotating arbitrarily due to external force when the door is opened, a door stopper is usually set between the lower back of the door and the wall. The current door stopper mainly fixes the door by sucking the suction seat and the suction column together through magnetic suction.

[0003] The applicant has previously applied for a magnetic buffer door stopper, which includes a magnetic seat and a base, wherein the base is provided with a metal sheet that can be adsorbed by the magnetic seat, and the base is provided with a damping sheet that can slide back and forth, the metal sheet is hinged to the damping sheet and can swing along the sliding direction of the damping sheet, and a buffer mechanism is provided between the damping sheet and the base to prevent the damping sheet from sliding backward.

[0004] The above-mentioned door bumper structure has a good buffering effect during application and the overall structure is flat and compact. On this basis, the applicant has continued to research and develop and designed a door bumper structure with an anti-slip effect. To achieve the above purpose, a person skilled in the art can easily consider: 1. Increase the magnetic attraction in the door bumper to avoid collision and escape; 2. Set a locking structure on the door bumper or the door body to lock the two when colliding, so that the two cannot be disengaged after the collision; 3. Set more buffer devices in the door bumper to absorb and consume the energy when the door body collides. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides a compact magnetic buffer door stopper. The technical problem to be solved by the present invention is: how to improve the buffering and anti-slipping effect of the door stopper.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A compact magnetic buffer door stopper comprises a base, wherein a damping plate which can slide forward and backward is provided in the base, a metal plate which can swing up and down along the sliding direction of the damping plate is connected to the rear end of the damping plate, and a buffer device which provides resistance for the rearward movement of the damping plate is provided between the damping plate and the base, and is characterized in that friction blocks which can move left and right are provided between the left and right sides of the damping plate and the base, and when the damping plate slides forward and backward, the damping plate can rub against the friction block or drive the friction block to rub against the base, and when the damping plate slides forward, the clamping force on the friction block in the left and right directions is greater than the clamping force on the friction block in the left and right directions when the damping plate slides backward.

[0008] The base is generally installed on the bottom surface or wall. The damping plate and the metal plate are hinged and assembled on the base. The metal plate is used to adsorb with the magnetic seat installed on the door body to limit the position of the door body. During operation, the door body continuously approaches from the front of the door and finally adsorbs with the metal plate and drives the damping plate to move backward. The buffer device arranged between the damping plate and the base can absorb the backward movement energy of the damping plate. When the impact force of the door body is transmitted to the damping plate through the metal plate and causes it to slide backward, the damping plate will make the buffer device work and absorb the impact force through the existing connecting mechanism, so as to achieve a good buffering effect. After the absorption is completed, the buffer device can also drive the damping plate to reset and prepare for the next impact. By arranging friction blocks that can move left and right between the left and right sides of the damping plate and the base, when the damping plate moves forward and backward, the friction blocks can be rubbed against the side of the damping plate or driven by the damping plate to be rubbed against the inner wall of the base, so that part of the impact energy can be consumed through friction movement, thereby improving the buffering effect; by further arranging that the clamping force between the friction block and the damping plate gradually decreases when the damping plate slides backward, the damping is softer when the door body collides with the door, avoiding rigid collision and bouncing off when the damping force is too large, and the buffer device absorbs impact energy while consuming friction energy; the clamping force between the friction block and the damping plate gradually increases when the damping plate slides forward, so that when the door body impacts into place, the buffer device will release the accumulated potential energy, and at this time the clamping force on the friction block will increase, thereby greatly reducing the efficiency and speed of releasing the potential energy, thereby greatly reducing the resetting speed of the damping plate, thereby also avoiding the phenomenon that the damping plate is quickly reset and drives the door body to fall off, thereby effectively preventing the door body from falling off.

[0009] In the above-mentioned compact magnetic buffer door impact, the left and right side edges of the damping plate are provided with a receiving groove, the friction block is located in the receiving groove, the front end side wall of the receiving groove can abut against the friction block when the damping plate moves backward, and the rear end side wall of the receiving groove has a guide wedge surface extending outwardly and inclined to the outer surface, and when the damping plate slides forward, the friction block can abut against the guide wedge surface and slide outward along the guide wedge surface. By opening a receiving groove on the left and right sides of the damping plate, the friction block is arranged in the receiving groove, so that the front end of the friction block can abut against the side wall limit of the receiving groove, so that when the door body impact drives the damping plate to move backward, the friction block will abut against the side wall limit of the receiving groove, and the damping plate drives the friction block to move and slightly rub against the inner wall of the base; the rear end of the friction block is set to slide along the guide wedge surface in the receiving groove, so that the friction block is squeezed by the guide wedge surface during movement and pressed against the inner wall of the base, thereby increasing the friction resistance during resetting, so as to achieve an anti-slip effect. In the above-mentioned compact magnetic suction buffer door collision, an elastic member that can push the friction block to move outward is provided between the inner wall of the receiving groove and the friction block. By providing an elastic member 1 between the inner wall of the receiving groove and the friction block, the elastic member 1 may be a spring or a rubber block, etc., so as to ensure that the friction block can always have a tendency to move outward, thereby ensuring that the friction block can continue to rub against the base during the movement of the damping plate, thereby adjusting the position in the receiving groove according to different working conditions. In the above-mentioned compact magnetic buffer door collision, the end of the friction block close to the guide wedge surface is wedge-shaped and matched with the guide wedge surface. By setting the rear end of the friction block to be wedge-shaped and matched with the guide wedge surface, it is ensured that the entire friction block is not easy to tilt during the sliding of the friction block along the guide wedge surface, thereby ensuring the fitting effect of the friction block and the base. In addition, it is also convenient for the rear end of the friction block to be stuck in the gap between the damping plate and the base, thereby increasing the friction clamping force.

[0010] As another solution, both the left and right sides of the damping plate have a receiving groove, the friction block is located in the receiving groove, an elastic member that can push the friction block to move outward is provided between the inner side wall of the receiving groove and the friction block, and the base has two guiding inclined surfaces that are respectively opposite to the two receiving grooves in the left and right directions, and the distance between the guiding inclined surfaces and the damping plate gradually increases from front to back, and the friction block can abut against the guiding inclined surfaces. By providing receiving grooves on the left and right sides of the damping plate, the friction block is arranged in the receiving groove, and an elastic member is provided so that the friction block always has a tendency to move outward, and in addition, guiding inclined surfaces are provided on the base and are respectively located on the left and right sides of the damping plate, so that when the damping plate moves backward, the friction block is driven to move backward, and at the same time, the friction block gradually extends out with less friction resistance; when the damping plate moves forward to reset, the pressing force on the friction block increases and the resistance on the damping plate is greatly increased due to the obstruction of the inclined surface, thereby achieving an anti-slip effect.

[0011] In the above-mentioned compact magnetic absorption buffer door collision, the side of the friction block facing the guide slope is wedge-shaped and matched with the guide slope. By setting the side of the friction block facing the guide slope to be wedge-shaped and matched with the guide slope, it can be ensured that the friction block and the friction section always have sufficient friction area during the movement process, thereby ensuring the energy absorption effect.

[0012] As another solution, the friction block is in the shape of a spring sheet and opens to the left and right sides. The friction block is elastic and fixed on the damping plate. The base has two guide slopes that are respectively opposite to the two sides of the friction block in the left and right directions. The distance between the guide slope and the damping plate gradually increases from front to back, and the friction block can abut against the guide slope. By making the friction block fixed on the damping plate in the shape of a spring sheet and opening to the left and right sides, and setting guide slopes on the bases on the left and right sides of the damping plate, when the damping plate slides backward, the spring sheet can release deformation and slide and open along the guide slope, the contact area is reduced and the clamping force is also reduced, so that the friction resistance is small, and the opening action will promote the backward movement of the damping plate; when the damping plate moves forward, the spring sheet will slide along the guide slope and deform and shrink, the clamping force will increase and increase the contact friction area between the spring sheet and the guide slope, thereby increasing the friction resistance and achieving an anti-slip effect.

[0013] As another solution, the damping plate has a friction section, the left and right sides of the friction section are wedge-shaped, the small end of the friction section faces forward, the friction block is slidably fitted in the base, and an elastic member 2 is provided between the friction block and the base, which can drive the friction block to move toward the side of the friction section, and the friction block can rub against the friction section. The damping plate is provided with a trapezoidal friction section and the small end of the friction section is facing forward. In addition, the friction block is slidably fitted in the base and an elastic member 2 is provided between the friction block and the base. In this way, when the door body impacts and drives the damping plate to move backward, the friction block is initially located at the large end of the friction section. During the movement, the friction effect of the entire damping plate is weak due to the guiding effect of the side of the friction section. In addition, the instantaneous speed of the damping plate is relatively fast, which makes it difficult for the friction block to fully contact with the friction section, resulting in sliding, thereby greatly reducing the resistance of the damping plate when it moves backward, making the collision damping softer as a whole and not bouncing off. When the damping plate is reset by the potential energy released by the buffer device and moves forward, the initial speed of the damping plate is very small and the friction block fully contacts and rubs with the friction section. In addition, the friction section needs to spread the friction blocks on both sides to the left and right, and the greater the degree of spreading, the greater the friction resistance, thereby effectively consuming the released energy and controlling the reset speed at a lower level, thereby improving the anti-slip effect.

[0014] In the above-mentioned compact magnetic buffer door bumper, the side of the friction block facing the friction section is wedge-shaped and matches the side of the friction section. By setting the side of the friction block facing the friction section to be wedge-shaped and matching the side of the friction section, it can be ensured that the friction block and the friction section always have sufficient friction area during the movement to ensure the energy absorption effect. In the above-mentioned compact magnetic buffer door bumper, the surface of the friction block and the base or the damping plate that slides relative to each other has friction particles or damping ripples. By arranging friction particles or damping ripples on the mating surface of the friction block, the overall damping energy absorption effect is further improved, and it is convenient to control the movement stroke and design size by changing the specifications of the friction particles and damping ripples.

[0015] In the above-mentioned compact magnetic buffer door collision, the second elastic member is a compression spring or a damping rod. The compression spring has good and stable elasticity, which can ensure that the friction block fully functions; the damping oil in the damping rod will make the telescopic end of the damping rod have a "delay" effect, so that when the door body impacts and drives the damping plate to move backward, the damping plate moves backward quickly, and the telescopic end of the damping rod does not have time to extend, so that the friction block will not hinder the damping plate from moving backward, thereby greatly reducing the resistance of the damping plate when moving backward, and further making the collision damping softer as a whole and will not bounce off; and when the damping plate is reset by the potential energy released by the buffer device and moves forward, the initial speed of the damping plate is very small and the friction block fully contacts and rubs with the friction section. In addition, the friction section needs to open the friction blocks on both sides to the left and right sides, and the damping rod has a greater resistance to retraction due to the "delay" effect, thereby further effectively consuming the released energy and controlling the reset speed at a lower level, thereby improving the anti-slip effect.

[0016] In the above-mentioned compact magnetic buffer door, the friction section is located on the bottom surface of the damping plate, and the width of the damping plate is larger than the width of the friction section. By arranging the friction section on the bottom surface of the damping plate and making the width of the friction section smaller than the width of the damping plate, the working environment of the friction section and the friction block can be protected under the damping plate, avoiding dust intrusion that affects the friction effect and increasing the service life.

[0017] In the above-mentioned compact magnetic buffer door bumper, the angle between the sliding direction of the friction block and the sliding direction of the damping plate is in the range of 25° to 125°. By setting the angle between the movement direction of the friction block and the sliding direction of the damping plate to be between 25° and 125°, the pressure of the friction block can be better distributed to the friction force with the friction section, which is beneficial to the spatial layout of the entire door bumper and has a higher degree of design freedom.

[0018] In the above-mentioned compact magnetic absorption buffer door, a buffer block is provided at the rear end of the damping plate, and when the damping plate slides backward to the bottom, the buffer block abuts against the base. By providing the buffer block at the rear end of the damping plate, the rigid collision when the damping plate slides backward to the bottom can be better avoided, the noise impact can be reduced, and part of the impact energy can also be absorbed.

[0019] As another solution, the base is slidably connected with resistance blocks located on the left and right sides of the damping sheet and always having a tendency to slide toward the damping sheet. When the damping sheet slides backward to the bottom, the outer end of the resistance block extends out of the base and faces the front end of the damping sheet in the front-to-back direction. When the damping sheet slides forward to reset, it can push the resistance block to retract and slide. By arranging a resistance block that can slide toward the damping sheet in the left and right directions in the base, and allowing the resistance block to extend out of the base and face the front end of the damping sheet in the front-to-back direction when the damping sheet slides to the bottom, when the damping sheet starts to reset, it will collide with the extended damping block, greatly reducing the reset speed of the damping sheet. The reset movement can only be continued after the energy is consumed to make the resistance block retract, thereby realizing stage control of the reset of the damping sheet, which is conducive to improving the anti-slip effect.

[0020] In the above-mentioned compact magnetic buffer door stopper, the resistance block is provided with an inclined guide surface that can abut against the damping plate, and when the damping plate slides forward to reset, the front end of the damping plate can slide along the inclined guide surface. By providing the resistance block with an inclined guide surface that can abut against and slide relatively with the front end of the damping plate, it is helpful to ensure that the damping plate can slide smoothly along the inclined guide surface when resetting, and avoid the resistance of the resistance block being too large, which makes it difficult for the damping plate to reset and affects the normal operation of the door stopper.

[0021] In the above-mentioned compact magnetic buffer door collision, the base is provided with a limit portion, and when the damping plate slides backward to the bottom, the outer end of the resistance block abuts against the limit portion and partially extends out of the base. By setting a limit portion on the base to limit the extension length of the resistance block, the limitations of the resistance block layout are reduced, and the left and right positions of the resistance block and the front end of the damping plate can be designed at any position in the reset stroke, which is conducive to satisfying the control of different buffering effects of door collision.

[0022] In the above-mentioned compact magnetic buffer door, the buffer device includes a spring member, and the two ends of the spring member are respectively against the damping plate and the base in the front-back direction. By setting the buffer device to include spring members respectively against the damping plate and the base, when the door body is impacted, the spring member can absorb and accumulate impact energy to achieve the conversion of energy output direction.

[0023] In the above-mentioned compact magnetic buffer door collision, the buffer device also includes a damping disc and a turntable. The base has a circular turning groove, and the damping disc is embedded in the turning groove. The upper surface of the damping disc has a plurality of ratchet blocks arranged in sequence along the circumferential direction. The turntable is located directly above the damping disc and rotates coaxially with the damping disc. The outer edge of the turntable is provided with an elastic arm extending outward. When the damping plate slides backward, it can drive the turntable to rotate and make the elastic arm elastically contact one side surface of the ratchet block one by one. When the damping plate slides forward, it can drive the turntable to reset and rotate and make the elastic arm and the other side surface of the ratchet block limit in the rotation direction to drive the damping disc to rotate. The buffer device includes a damping disc and a rotating disc, a circular rotating groove is arranged in the base, the damping disc is embedded in the rotating groove and the damping disc can rub against the bottom surface of the rotating groove when rotating to form a damping effect. Generally, damping oil can be added to the rotating groove during use to further enhance the damping effect. A plurality of ratchet blocks arranged in sequence along the circumferential direction are arranged on the upper surface of the damping disc. The ratchet blocks are of an existing structure. The rotating disc is arranged directly above the damping disc and rotates coaxially with the damping disc. An elastic arm extending outward is arranged on the outer edge of the rotating disc, so that when the damping plate slides backward, The damping plate can drive the turntable to rotate in a directional manner through the existing connection structure as previously declared by the applicant. At the same time, the elastic arm on the turntable can pass over multiple ratchet blocks in sequence during the rotation process. When passing through each ratchet block, it contacts with one side of the ratchet block and deforms to ensure smooth passage, thereby ensuring the damping softness when the door body is impacted; when the spring part releases the accumulated energy, the turntable flips over to make the elastic arm and the other side of the ratchet block abut against the limit position, thereby driving the damping disc to rotate to form a larger damping force to consume energy and limit the movement speed of the damping plate, further improving the anti-slip effect.

[0024] In the above-mentioned compact magnetic buffer door, the elastic arm is a socket-type torsion spring and is embedded in the turntable. By setting the elastic arm as a socket-type torsion spring embedded in the turntable, the strength and deformation effect of the elastic arm can be better guaranteed, and stable operation can be ensured.

[0025] Compared with the prior art, the advantages of the present invention are as follows:

[0026] This compact magnetic buffer door impact is achieved by arranging friction blocks that can move left and right between the left and right sides of the damping plate and the base. When the damping plate moves forward and backward, the friction blocks can be rubbed against the side of the damping plate or driven by the damping plate to be rubbed against the inner wall of the base. In this way, part of the impact energy can be consumed through friction movement, thereby improving the buffering effect; by further arranging that the clamping force between the friction block and the damping plate gradually decreases when the damping plate slides backward, the damping is softer when the door body collides with the door impact, avoiding rigid collision and bouncing off when the damping force is too large, and the buffer device absorbs the impact energy while consuming friction energy; the clamping force between the friction block and the damping plate gradually increases when the damping plate slides forward, so that when the door body impacts into place, the buffer device will release the accumulated potential energy, and at this time the clamping force on the friction block will increase, thereby greatly reducing the efficiency and speed of releasing the potential energy, thereby greatly reducing the resetting speed of the damping plate, thereby also avoiding the phenomenon that the damping plate is quickly reset and drives the door body to fall off, thereby effectively preventing the door body from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment.

[0028] Figure 2 It is a schematic cross-sectional structure diagram of the first embodiment.

[0029] Figure 3 yes Figure 2 Enlarged view of part A in .

[0030] Figure 4 It is a schematic diagram of the explosion structure of the first embodiment.

[0031] Figure 5 yes Figure 4 Enlarged view of part B in .

[0032] Figure 6 It is a schematic diagram of the explosion structure of the first embodiment from another angle.

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the second embodiment.

[0034] Figure 8 It is a bottom view structural schematic diagram of the second embodiment.

[0035] Fig. 9 It is a cross-sectional structural schematic diagram of another working state of the second embodiment.

[0036] Fig.10 yes Fig. 9 Enlarged view of part C in .

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of the damping plate in the second embodiment.

[0038] Fig.12 It is a schematic diagram of the three-dimensional structure of embodiment three.

[0039] Fig.13 It is a schematic cross-sectional structure diagram of the third embodiment.

[0040] Fig.14 It is a schematic diagram of the three-dimensional structure of the fourth embodiment.

[0041] Fig.15 It is a schematic diagram of the structure of the fifth embodiment viewed from above.

[0042] In the figure, 1, base; 11, rotating groove; 12, guiding inclined surface; 13, limiting part;

[0043] 2. Damping plate; 21. Accommodating groove; 22. Guide wedge surface; 23. Friction section;

[0044] 3. Metal sheet;

[0045] 4. Buffer device; 41. Spring member; 42. Damping disc; 421. Ratchet block; 43. Rotating disc; 44. Elastic arm;

[0046] 5. Friction block; 6. Elastic member 1; 7. Elastic member 2; 8. Buffer block; 9. Resistance block; 91. Inclined guide surface. DETAILED DESCRIPTION

[0047] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0048] Embodiment 1:

[0049] like Figure 1-6As shown, the compact magnetic buffer door stopper includes a base 1, in which a damping plate 2 which can slide forward and backward is provided, and a metal plate 3 which can swing up and down along the sliding direction of the damping plate 2 is connected to the rear end of the damping plate 2, and a buffer device 4 which provides resistance for the backward movement of the damping plate 2 is provided between the damping plate 2 and the base 1, and the buffer device 4 can adopt a buffer mechanism as in the applicant's previous application number CN201920840771.X, and friction blocks 5 which can move left and right are provided between the left and right sides of the damping plate 2 and the base 1, and when the damping plate 2 slides forward and backward, the damping plate 2 can drive the friction block 5 to rub relative to the base 1, and when the damping plate 2 slides forward, the clamping force between the friction block 5 and the damping plate 2 is greater than the clamping force between the friction block 5 and the damping plate 2 when the damping plate 2 slides backward. The base 1 is generally installed on the bottom surface or the wall, the damping plate 2 and the metal plate 3 are hinged and assembled on the base 1, the metal plate 3 is used to adsorb with the magnetic seat installed on the door body to limit the position of the door body, and a buffer device 4 is arranged between the damping plate 2 and the base 1. When the impact force of the door body is transmitted to the damping plate 2 through the metal plate 3 and causes it to slide backward, the buffer device 4 absorbs the impact force and can achieve a good buffering effect. After the absorption is completed, the buffer device 4 can also drive the damping plate 2 to reset and prepare for the next impact. By arranging friction blocks 5 that can move left and right between the left and right sides of the damping plate 2 and the base 1, when the damping plate 2 moves forward and backward, the friction blocks 5 can be rubbed against the side edges of the damping plate 2 or driven by the damping plate 2 to be rubbed against the inner wall of the base 1, so that part of the impact energy can be consumed through friction movement, thereby improving the buffering effect; by further arranging that the pressing force between the friction blocks 5 and the damping plate 2 gradually decreases when the damping plate 2 slides backward, so that when the door body collides with the door, the damping is softer, avoiding rigid collision and bouncing off when the damping force is too large, and the buffer device 4 absorbs the impact energy while consuming friction energy; when the damping plate 2 slides forward, the pressing force between the friction blocks 5 and the damping plate 2 gradually increases, so that when the door body impacts into place, the buffer device 4 will release the accumulated potential energy, and at this time, the pressing force on the friction blocks 5 will increase, thereby greatly reducing the efficiency and speed of releasing the potential energy, thereby greatly reducing the resetting speed of the damping plate 2, thereby also avoiding the phenomenon that the damping plate 2 is quickly reset and drives the door body to fall off, thereby effectively preventing the door body from being disengaged. The mating surface of the friction block 5 can be coated with damping oil or viscous grease or liquid wax, so as to enhance the friction viscosity effect and improve the energy consumption efficiency. Further, the left and right sides of the damping plate 2 are provided with a receiving groove 21, and the friction block 5 is located in the receiving groove 21. The side wall of the receiving groove 21 near the front end of the damping plate 2 can be limitedly abutted against the friction block 5 along the front-back direction. The side wall of the receiving groove 21 near the rear end of the damping plate 2 has a guide wedge surface 22 extending to the outer surface. When the damping plate 2 slides forward, the friction block 5 can abut against the guide wedge surface 22 and slide toward the base 1 along the guide wedge surface 22.By providing a receiving groove 21 on the left and right sides of the damping plate 2, the friction block 5 is arranged in the receiving groove 21, so that the front end of the friction block 5 can abut against the side wall limit of the receiving groove 21, so that when the door body impact drives the damping plate 2 to move backward, the friction block 5 will abut against the side wall limit of the receiving groove 21, and the damping plate 2 drives the friction block 5 to move and slightly rub against the inner side wall of the base 1; the rear end of the friction block 5 is set to slide along the guide wedge surface 22 in the receiving groove 21, so that the friction block 5 is squeezed by the guide wedge surface 22 during the movement and pressed against the inner side wall of the base 1, thereby increasing the friction resistance during resetting, thereby achieving an anti-slip effect. The surface of the friction block 5 facing the base 1 has damping corrugations to improve the friction damping effect and energy absorption effect. Specifically, an elastic member 6 that can push the friction block 5 to move outward is provided between the inner side wall of the receiving groove 21 and the friction block 5. By setting an elastic member 6 between the inner wall of the accommodating groove 21 and the friction block 5, the elastic member 6 can be a spring or a rubber block, etc., so as to ensure that the friction block 5 can always have a tendency to move outward, so as to ensure that the friction block 5 can continue to rub against the base 1 during the movement of the damping plate 2, so as to adjust the position in the accommodating groove 21 according to different working conditions. The end of the friction block 5 close to the guide wedge surface 22 is wedge-shaped and adapted to the guide wedge surface 22. By setting the rear end of the friction block 5 to be wedge-shaped and adapted to the guide wedge surface 22, it is ensured that the entire friction block 5 is not easy to tilt during the sliding of the friction block 5 along the guide wedge surface 22, thereby ensuring the fitting effect of the friction block 5 and the base 1. In addition, it is also convenient for the rear end of the friction block 5 to be stuck in the gap between the damping plate 2 and the base 1, thereby increasing the friction clamping force.

[0050] like Figure 4-6As shown, the buffer device 4 includes a spring member 41, and both ends of the spring member 41 abut against the damping plate 2 and the base 1 in the front-rear direction. By setting the buffer device 4 to include the spring member 41 abutting against the damping plate 2 and the base 1, when the door body is impacted, the spring member 41 can absorb and accumulate impact energy to achieve the conversion of energy output direction. Furthermore, the buffer device 4 also includes a damping disc 42 and a turntable 43. The base 1 has a circular turning groove 11, and the damping disc 42 is embedded in the turning groove 11. The upper surface of the damping disc 42 has a plurality of ratchet blocks 421 arranged in sequence along the circumferential direction. The turntable 43 is located directly above the damping disc 42 and rotates coaxially with the damping disc 42. The outer edge of the turntable 43 is provided with an elastic arm 44 extending outward. When the damping plate 2 slides backward, it can drive the turntable 43 to rotate and make the elastic arm 44 elastically contact one side surface of the ratchet block 421 one by one. When the damping plate 2 slides forward, it can drive the turntable 43 to reset and rotate, and make the elastic arm 44 and the other side surface of the ratchet block 421 limit the position in the rotation direction to drive the damping disc 42 to rotate. By setting the buffer device 4 including the damping disc 42 and the rotating disk 43, a circular rotating groove 11 is set in the base 1, the damping disc 42 is embedded in the rotating groove 11 and the damping disc 42 can rub against the bottom surface of the rotating groove 11 when rotating to form a damping effect. In general use, damping oil can be added to the rotating groove 11 to further enhance the damping effect; a rotating pin is set at the bottom of the damping plate 2, and the upper surface of the damping disc 42 has an eccentric waist-shaped groove. When the damping plate 2 slides back and forth, the outer peripheral surface of the rotating pin abuts against the inner side wall of the waist-shaped groove, thereby driving the damping disc 42 to rotate. A plurality of ratchet blocks 421 arranged in sequence along the circumferential direction are set on the upper surface of the damping disc 42. The ratchet blocks 421 are of the existing structure. The rotating disk 43 is set directly above the damping disc 42 and is in contact with the damping disc 42. Coaxial rotation is matched, and an elastic arm 44 extending outward is set on the outer edge of the turntable 43, so that when the damping plate 2 slides backward, the damping plate 2 can drive the turntable 43 to rotate in a directional manner through the existing connection structure previously reported by the applicant, and at the same time, the elastic arm 44 on the turntable 43 can pass through multiple ratchet blocks 421 in sequence during the rotation process, and when passing through each ratchet block 421, it contacts with one side of the ratchet block 421 and deforms to ensure smooth passage, ensuring the damping softness when the door body is impacted; when the spring member 41 releases the accumulated energy, the turntable 43 flips to make the elastic arm 44 and the other side of the ratchet block 421 limit against each other, thereby driving the damping disc 42 to rotate to form a larger damping force to consume energy and limit the movement speed of the damping plate 2, further improving the anti-slip effect. Preferably, the elastic arm 44 is a socket-type torsion spring and is embedded in the turntable 43. By configuring the elastic arm 44 to be a socket-type torsion spring embedded in the rotating disk 43 , the strength and deformation effect of the elastic arm 44 can be better ensured, thereby ensuring stable operation.

[0051] Embodiment 2:

[0052] like Figure 7-11 As shown, this embodiment is basically the same as the first embodiment, except that: as another solution, the bottom surface of the damping plate 2 has a friction section 23, the friction section 23 is trapezoidal and the left and right sides of the friction section 23 are wedge-shaped, the small end of the friction section 23 faces forward, the friction block 5 is slidably fitted in the base 1, and an elastic member 2 7 is provided between the friction block 5 and the base 1 to enable the friction block 5 to move outward, and the friction block 5 can rub against the two sides of the friction section 23. By arranging the damping plate 2 to include a friction section 23 in a trapezoidal shape and making the small end of the friction section 23 face forward, and making the friction block 5 slidably fit in the base 1 and providing an elastic member 2 7 between the friction block 5 and the base 1, the elastic member 2 7 can be a compression spring, so that when the door body impacts and drives the damping plate 2 to move backward, the friction block 5 is initially located at the large end of the friction section 23, and is guided by the side of the friction section 23 during the movement, so that the friction effect of the entire damping plate 2 is relatively weak. In addition, the instantaneous speed of the damping plate 2 will be relatively fast, making it difficult for the friction block 5 to fully contact the friction section 2 3 contact, thereby greatly reducing the resistance of the damping plate 2 when it moves backward, making the collision damping softer as a whole and not bouncing off; and when the damping plate 2 is reset by the potential energy released by the buffer device 4, the initial speed of the damping plate 2 is very small and the friction block 5 is fully in contact and friction with the friction segment 23. In addition, the friction segment 23 needs to open the friction blocks 5 on both sides to the left and right sides, and the greater the degree of opening, the greater the friction resistance, so as to effectively consume the released energy and control the reset speed at a lower level, thereby improving the anti-slip effect. Preferably, the side of the friction block 5 facing the friction segment 23 is wedge-shaped and matches the side of the friction segment 23. By setting the side of the friction block 5 facing the friction segment 23 to be wedge-shaped and match the side of the friction segment 23, it can be ensured that the friction block 5 and the friction segment 23 always have sufficient friction area during the movement process, ensuring the energy absorption effect. The surfaces of the left and right sides of the friction segment 23 and the surface of the friction block 5 facing the friction segment 23 are both provided with friction particles. By arranging friction particles on the contact surfaces of the friction section 23 and the friction block 5, the overall friction energy absorption effect is further improved, and the movement stroke and design size can be controlled by changing the specifications of the friction particles. The width dimension of the damping plate 2 is larger than the width dimension of the friction section 23, so as to avoid dust invasion and affect the friction effect, and improve the service life. The angle between the sliding direction of the friction block 5 and the sliding direction of the damping plate 2 is 80°, so that the pressure of the friction block 5 can be better distributed to the friction force with the friction section 23. A buffer block 8 is provided at the rear end of the friction section 23, and when the damping plate 2 slides backward to the bottom, the buffer block 8 is against the base 1. By arranging the buffer block 8 at the rear end of the friction section 23, the rigid collision when the damping plate 2 slides backward to the bottom can be better avoided, the noise impact can be reduced, and part of the impact energy can also be absorbed.

[0053] like Figure 7-10As shown, the base 1 is slidably connected with resistance blocks 9 located on the left and right sides of the damping plate 2 and always having a tendency to slide toward the damping plate 2. When the damping plate 2 slides backward to the bottom, the outer end of the resistance block 9 extends out of the base 1 and faces the front end of the damping plate 2 in the front-to-back direction. When the damping plate 2 slides forward to reset, it can push the resistance block 9 to retract and slide. By arranging the resistance block 9 that can slide toward the damping plate 2 in the left and right directions in the base 1, and making the resistance block 9 extend out of the base 1 and face the front end of the damping plate 2 in the front-to-back direction when the damping plate 2 slides to the bottom, when the damping plate 2 starts to reset, it will produce a collision and setback effect with the extended damping block, greatly reducing the reset speed of the damping plate 2. When the energy is consumed to make the resistance block 9 retract, the reset movement can continue, realizing the stage control of the reset of the damping plate 2, which is conducive to improving the anti-slip effect. The resistance block 9 has an inclined guide surface 91 that can abut against the damping plate 2. When the damping plate 2 slides forward to reset, the front end of the damping plate 2 can slide along the inclined guide surface 91. By providing an inclined guide surface 91 on the resistance block 9 that can abut against and slide relatively with the front end of the damping plate 2, it is helpful to ensure that the damping plate 2 can slide smoothly along the inclined guide surface 91 when resetting, and avoid excessive resistance of the resistance block 9, which makes it difficult for the damping plate 2 to reset and affects the normal operation of the door. The base 1 is provided with a limit portion 13. When the damping plate 2 slides backward to the bottom, the outer end of the resistance block 9 abuts against the limit portion 13 and partially extends out of the base 1. By providing the limit portion 13 on the base 1 to limit the extension length of the resistance block 9, the limitations of the layout of the resistance block 9 are reduced. The left and right positions of the resistance block 9 and the front end of the damping plate 2 can be designed at any position in the reset stroke, which is conducive to satisfying the control of different buffering effects of the door. A spring is provided between the resistance block 9 and the base 1.

[0054] Embodiment three:

[0055] like Fig.12 , Fig.13As shown, this embodiment is basically the same as the first embodiment, except that: as another solution, both left and right sides of the damping plate 2 have a receiving groove 21, the friction block 5 is located in the receiving groove 21, and an elastic member 6 that can push the friction block 5 to move outward is provided between the inner side wall of the receiving groove 21 and the friction block 5, and the elastic member 6 is a compression spring. The base 1 has two guide slopes 12 that are respectively opposite to the two receiving grooves 21 in the left and right directions, and the distance between the guide slope 12 and the damping plate 2 gradually increases from front to back, and the friction block 5 can abut against the guide slope 12. By opening a receiving groove 21 on the left and right sides of the damping plate 2, the friction block 5 is arranged in the receiving groove 21, and an elastic member 6 is arranged so that the friction block 5 always has a tendency to move outward. In addition, a guide slope 12 is arranged on the base 1 and is respectively located on the left and right sides of the damping plate 2. When the damping plate 2 moves backward, the friction block 5 is driven to move backward, and at the same time, the friction block 5 gradually extends out with less friction resistance; when the damping plate 2 moves forward to reset, the pressing force on the friction block 5 increases and the resistance on the damping plate 2 is greatly increased due to the obstruction of the slope, thereby achieving an anti-slip effect. Further, the side of the friction block 5 facing the guide slope 12 is wedge-shaped and matched with the guide slope 12. By setting the side of the friction block 5 facing the guide slope 12 to be wedge-shaped and matched with the guide slope 12, it can be ensured that the friction block 5 and the friction section always have sufficient friction area during the movement process, thereby ensuring the energy absorption effect.

[0056] Embodiment 4:

[0057] like Fig.14 As shown, this embodiment is basically the same as the first embodiment, except that: as another solution, the friction block 5 is in the shape of a spring sheet and opens to the left and right sides, the friction block 5 is elastic and fixed on the damping plate 2, and the base 1 has two guide slopes 12 respectively facing the two sides of the friction block 5 in the left and right directions, and the distance between the guide slope 12 and the damping plate 2 gradually increases from front to back, and the friction block 5 can abut against the guide slope 12. By making the friction block 5 fixed on the damping plate 2 in the shape of a spring sheet and opening to the left and right sides, and arranging guide slopes 12 on the base 1 on the left and right sides of the damping plate 2, the spring sheet can release its deformation and slide and open along the guide slope 12 when the damping plate 2 slides backward, the contact area is reduced and the clamping force is also reduced, so that the friction resistance is smaller, and the opening action will promote the damping plate 2 to move backward; when the damping plate 2 moves forward, the spring sheet will slide along the guide slope 12 and deform and shrink, the clamping force will increase and the contact friction area between the spring sheet and the guide slope 12 will be increased, thereby improving the friction resistance and achieving the anti-slip effect.

[0058] Embodiment five:

[0059] like Fig.15As shown, this embodiment is basically the same as the second embodiment, except that: the elastic member 2 7 is a damping rod, and the damping oil in the damping rod will cause the telescopic end movement of the damping rod to have a "delay" effect, so that when the door body impacts and drives the damping plate 2 to move backward, the damping plate 2 moves backward quickly, and the telescopic end of the damping rod has no time to extend, so that the friction block 5 will not hinder the backward movement of the damping plate 2, thereby greatly reducing the resistance of the damping plate 2 when it moves backward, and further making the collision damping softer as a whole and will not bounce off; and when the damping plate is reset by the potential energy released by the buffer device and moves forward, the initial speed of the damping plate 2 is very small and the friction block is fully in contact and friction with the friction section. In addition, the friction section needs to spread the friction blocks on both sides to the left and right, and the damping rod has a greater resistance to its retraction due to the "delay" effect, thereby further effectively consuming the released energy and controlling the reset speed at a lower level, thereby improving the anti-slip effect.

[0060] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A compact magnetic buffer door stopper, comprising a base (1), wherein a damping plate (2) capable of sliding forward and backward is arranged in the base (1), a metal plate (3) capable of swinging up and down along the sliding direction of the damping plate (2) is connected to the rear end of the damping plate (2), and a buffer device (4) for providing resistance to the backward movement of the damping plate (2) is arranged between the damping plate (2) and the base (1), characterized in that: Friction blocks (5) that can move left and right are provided between the left and right sides of the damping plate (2) and the base (1); when the damping plate (2) slides forward and backward, the damping plate (2) can rub against the friction blocks (5) or drive the friction blocks (5) to rub against the base (1); when the damping plate (2) slides forward, the pressing force on the friction blocks (5) in the left and right directions is greater than the pressing force on the friction blocks (5) in the left and right directions when the damping plate (2) slides backward; the damping plate (2) has a friction section (23), and the friction section (23) is trapezoidal. The friction section (23) is shaped like a wedge, and the left and right sides of the friction section (23) are wedge-shaped. The small end of the friction section (23) faces forward. The friction block (5) is slidably fitted in the base (1). An elastic member (7) capable of pushing the friction block (5) to move toward the side of the friction section (23) is provided between the friction block (5) and the base (1). The friction block (5) can abut against and rub against the friction section (23). The side of the friction block (5) facing the friction section (23) is shaped like a wedge and is adapted to the side of the friction section (23). The elastic member (7) is a compression spring or a damping rod.

2. The compact magnetic buffer door stopper according to claim 1 is characterized in that: The friction section (23) is located on the bottom surface of the damping plate (2), and the width of the damping plate (2) is greater than the width of the friction section (23).

3. The compact magnetic buffer door stopper according to claim 1 is characterized in that: The included angle between the sliding direction of the friction block and the sliding direction of the damping plate (2) is in the range of 25° to 125°.

4. The compact magnetic buffer door stopper according to claim 1 is characterized in that: A buffer block (8) is provided at the rear end of the damping plate (2), and when the damping plate (2) slides backward to the bottom, the buffer block (8) abuts against the base.

5. The compact magnetic buffer door stopper according to claim 1 is characterized in that: The base is slidably connected to resistance blocks (9) located on the left and right sides of the damping plate (2) and always having a tendency to slide toward the damping plate (2); when the damping plate (2) slides backward to the bottom, the outer ends of the resistance blocks (9) extend out of the base and face the front end of the damping plate (2) in the front-to-back direction; when the damping plate (2) slides forward to reset, it can push the resistance blocks (9) to retract and slide.

6. The compact magnetic buffer door stopper according to claim 5 is characterized in that: The resistance block (9) has an inclined guide surface (91) that can abut against the damping plate (2); when the damping plate (2) slides forward and resets, the front end of the damping plate (2) can slide along the inclined guide surface (91).

7. The compact magnetic buffer door stopper according to claim 5 is characterized in that: The base is provided with a limiting portion (13), and when the damping plate (2) slides backward to the bottom, the outer end of the resistance block (9) abuts against the limiting portion (13) and partially extends out of the base.

8. The compact magnetic buffer door stopper according to any one of claims 1 to 7, characterized in that: The surface of the friction block (5) sliding relative to the base (1) or the damping plate (2) has friction particles or damping ripples.

9. The compact magnetic buffer door stopper according to any one of claims 1 to 7, characterized in that: The buffer device (4) comprises a spring member (41), and two ends of the spring member (41) respectively abut against the damping plate (2) and the base (1) along the front-rear direction.

10. The compact magnetic buffer door stopper according to claim 9, characterized in that: The buffer device (4) further comprises a damping disc (42) and a rotating disc (43). The base (1) has a circular rotating groove (11). The damping disc (42) is embedded in the rotating groove (11). The upper surface of the damping disc (42) has a plurality of ratchet blocks (421) arranged in sequence along the circumferential direction. The rotating disc (43) is located directly above the damping disc (42) and is coaxially rotatable with the damping disc (42). An elastic arm (44) extending outward is provided on the outer edge of the rotating disc (43). When the damping disc (2) slides backward, the rotating disc (43) can be driven to rotate and the elastic arm (44) can be elastically contacted with one side surface of the ratchet block (421) one by one. When the damping disc (2) slides forward, the rotating disc (43) can be driven to return to rotation and the elastic arm (44) can be limitedly abutted with the other side surface of the ratchet block (421) in the rotation direction to drive the damping disc (42) to rotate.

11. The compact magnetic buffer door stopper according to claim 10, characterized in that: The elastic arm (44) is a socket-type torsion spring and is embedded in the rotating disk (43).

Images