CN210033037U

CN210033037U - Buffering formula door-hinge means and buffering door

Info

Publication number: CN210033037U
Application number: CN201821471237.8U
Authority: CN
Inventors: 尹克寒
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2020-02-07
Anticipated expiration: 2028-09-07

Abstract

The utility model provides a buffering formula door-hinge means and buffering door relates to buffering door technical field, this buffering formula door-hinge means includes the door-hinge, first damping sleeve mechanism and second damping sleeve mechanism, first damping sleeve mechanism includes a door-hinge section of thick bamboo, first solid fixed cylinder and first torsional spring, first door-hinge section of thick bamboo cover is established outside first solid fixed cylinder and can rotate first solid fixed cylinder relatively, first torsional spring sets up between a door-hinge section of thick bamboo and first solid fixed cylinder, second damping sleeve mechanism includes a second door-hinge section of thick bamboo, the solid fixed cylinder of second and second torsional spring, second door-hinge section of thick bamboo cover is established outside the solid fixed cylinder of second and can rotate the solid fixed cylinder of second relatively, the second torsional spring sets up between a second door-hinge section of thick bamboo and the solid fixed cylinder of second. Compared with the prior art, the utility model provides a pair of buffering formula door-hinge mechanism, its installation is simple, connects intensity high, can be opening the door or the whole buffering effect that plays of closing the door simultaneously, and long service life.

Description

Buffering formula door-hinge means and buffering door

Technical Field

The utility model relates to a buffering door technical field particularly, relates to a buffering formula door-hinge mechanism and buffering door.

Background

The door is one of furniture which is commonly encountered in life of people, and various door structures appear along with the development of society. In home furniture, a hinge type door structure is generally used, and the door structure only plays a role of a switch partition. For some special occasions, for example, the door needs to move slowly when being opened or closed, so as to avoid the situation that the door is opened or closed greatly or unnecessary collision is generated, the hinge type structure obviously cannot meet the function.

In prior art, solve above-mentioned problem through the mode of installing buffering hinge additional usually, but buffering hinge's installation is complicated, and joint strength is little, and easy pine takes off after long-time the use, causes the destruction of door structure. Meanwhile, the buffering hinge only can play a role in buffering the tail end, the buffering effect is poor, and collision accidents are easily caused in the door opening and closing process.

In view of this, it is important to design and manufacture a buffer type door spindle device which is simple to install, has high connection strength, can achieve a buffer effect in the whole door opening or closing process, and has a long service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buffering formula door-hinge device, its installation is simple, connects intensity high, can be opening the door or the whole buffering effect that plays that closes the door simultaneously, and long service life.

Another object of the utility model is to provide a buffering door, its installation is simple, connects intensity high, can play the buffering effect in the whole journey that opens the door or close the door simultaneously, and long service life.

The utility model is realized by adopting the following technical scheme.

A buffer type door spindle device comprises a door spindle, a first damping sleeve mechanism and a second damping sleeve mechanism, wherein the door spindle is fixedly arranged on a door frame, the first damping sleeve mechanism comprises a first door spindle barrel, a first fixing barrel and a first torsion spring, the first fixing barrel is detachably sleeved on the upper portion of the door spindle and can synchronously rotate along with the door spindle, the first door spindle barrel is sleeved outside the first fixing barrel and can rotate relative to the first fixing barrel, the first torsion spring is arranged between the first door spindle barrel and the first fixing barrel, and the first torsion spring is abutted against the inner side wall of the first door spindle barrel and used for preventing the first door spindle barrel from rotating along a first rotating direction; the second damping sleeve mechanism comprises a second door shaft cylinder, a second fixing cylinder and a second torsion spring, the second fixing cylinder is detachably sleeved on the lower portion of the door shaft and can rotate along with the door shaft synchronously, the second door shaft cylinder is sleeved outside the second fixing cylinder and can rotate relative to the second fixing cylinder, the second torsion spring is arranged between the second door shaft cylinder and the second fixing cylinder, the second torsion spring is abutted to the inner side wall of the second torsion spring and the second door shaft cylinder and used for blocking the second door shaft cylinder to rotate along a second rotation direction, and the second rotation direction is opposite to the first rotation direction.

Furthermore, first torsion spring has first upper end and first end under, and the inboard of a first door beam section of thick bamboo is provided with first butt ring tooth, and first upper end butt can be relative first butt ring tooth unidirectional sliding on first butt ring tooth, and the outer peripheral face of a first fixed section of thick bamboo is fitted with a contraceptive ring and is equipped with first damping ring, and first damping ring can have the damping ground to rotate relative a fixed section of thick bamboo, first end and first damping ring fixed connection under.

Furthermore, the outer peripheral surface of the first fixed cylinder is provided with a first annular groove, and the first damping ring is accommodated in the first annular groove and is abutted against the side wall of the first annular groove.

Further, the second torsional spring has second upper end and second lower end, and the inboard of second door axle section of thick bamboo is provided with second butt latch ring, and second upper end butt can be relative second butt latch ring unidirectional sliding on the second butt latch ring, and the outer peripheral face of the second solid fixed cylinder is fitted with a contraceptive ring and is equipped with the second damping ring, and the second damping ring can have the damping ground to rotate relative to the second solid fixed cylinder, second lower end and second damping ring fixed connection.

Furthermore, the outer peripheral surface of the second fixed cylinder is provided with a second ring groove, and the second damping ring is accommodated in the second ring groove and is abutted against the side wall of the second ring groove.

Furthermore, first bearings are arranged at two ends of the first door shaft cylinder, an outer ring of each first bearing is fixedly connected with the inner wall of the first door shaft cylinder, and an inner ring of each first bearing is fixedly connected with the outer wall of the first fixing cylinder, so that the first door shaft cylinder is rotatably sleeved on the first fixing cylinder.

Furthermore, second bearings are arranged at two ends of the second door shaft cylinder, an outer ring of each second bearing is fixedly connected with the inner wall of the second door shaft cylinder, and an inner ring of each second bearing is fixedly connected with the outer wall of the second fixing cylinder, so that the second door shaft cylinder is rotatably sleeved on the second fixing cylinder.

Furthermore, the upper portion of the door shaft is provided with a first pin hole, the inner side of the first fixing barrel is provided with a first bolt, the first bolt is matched with the first pin hole, the lower portion of the door shaft is provided with a second pin hole, and the second bolt is matched with the second pin hole.

Furthermore, the outer peripheral surface of the first door shaft cylinder is provided with a first reinforcing connecting plate for connecting the door panel, the outer peripheral surface of the second door shaft cylinder is provided with a second reinforcing connecting plate for connecting the door panel, and the first reinforcing connecting plate and the second reinforcing connecting plate extend outwards along the same direction.

A buffer door comprises a door frame, a door plate and a buffer door shaft device, wherein the buffer door shaft device comprises a door shaft, a first damping sleeve mechanism and a second damping sleeve mechanism, the door shaft is fixedly arranged on the door frame, the first damping sleeve mechanism comprises a first door shaft barrel, a first fixing barrel and a first torsion spring, the first fixing barrel is detachably sleeved on the upper part of the door shaft and can synchronously rotate along with the door shaft, the first door shaft barrel is sleeved outside the first fixing barrel and can rotate relative to the first fixing barrel, the first torsion spring is arranged between the first door shaft barrel and the first fixing barrel, and the first torsion spring is abutted against the inner side wall of the first door shaft barrel and used for preventing the first door shaft barrel from rotating along a first rotating direction; the second damping sleeve mechanism comprises a second door shaft cylinder, a second fixing cylinder and a second torsion spring, the second fixing cylinder is detachably sleeved on the lower portion of the door shaft and can rotate along with the door shaft synchronously, the second door shaft cylinder is sleeved outside the second fixing cylinder and can rotate relative to the second fixing cylinder, the second torsion spring is arranged between the second door shaft cylinder and the second fixing cylinder, the second torsion spring is abutted to the inner side wall of the second torsion spring and the second door shaft cylinder and used for blocking the second door shaft cylinder to rotate along a second rotation direction, and the second rotation direction is opposite to the first rotation direction. The door shaft is fixedly connected with one side of the door frame, and the door plate is fixedly connected with the first door shaft barrel and the second door shaft barrel respectively and can drive the first door shaft barrel and the second door shaft barrel to synchronously rotate.

The utility model discloses following beneficial effect has:

the utility model provides a pair of buffering formula door-hinge device establishes first fixed cylinder detachably cover on the upper portion of door-hinge and can rotate along with the door-hinge is synchronous, and first door-hinge barrel casing is established outside first fixed cylinder and can rotate first fixed cylinder relatively, and first torsion spring setting is between first door-hinge barrel and first fixed cylinder, and the inside wall butt of first torsion spring and first door-hinge barrel. The second fixing barrel is detachably sleeved on the lower portion of the door shaft and can synchronously rotate along with the door shaft, the second door shaft barrel is sleeved outside the second fixing barrel and can rotate relative to the second fixing barrel, the second torsion spring is arranged between the second door shaft barrel and the second fixing barrel, and the second torsion spring is abutted to the inner side wall of the second door shaft barrel. In the practical use process, when the door is closed, the door plate drives the first door shaft cylinder and the second door shaft cylinder to synchronously rotate along the first rotation direction, and the first torsion spring blocks the first door shaft cylinder to rotate and provides damping, so that the door closing action is slowed down, and accidents such as collision and the like caused by overlarge door closing action are avoided; when opening the door, the door plant drives first door beam barrel and second door beam barrel and rotates along the second rotation direction synchronization, and the second torsional spring blocks second door beam barrel and rotates and provide the damping this moment for the action of opening the door slows down, avoids opening the door the action too big and arouse accidents such as collision. Because the setting of first torsional spring and second torsional spring for the homoenergetic is buffered when opening the door and closing the door the action, can effectively avoid the switch door hard or the door slew velocity is too fast and the accident that bumps or carelessly the mistake was closed the door. Compared with the prior art, the utility model provides a pair of buffering formula door-hinge mechanism, its installation is simple, connects intensity high, can be opening the door or the whole buffering effect that plays of closing the door simultaneously, and long service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a buffering type door spindle device according to a first embodiment of the present invention;

fig. 2 is a schematic view of an assembly structure of a buffering type door spindle device according to a first embodiment of the present invention;

FIG. 3 is a schematic structural view of the first damping sleeve mechanism of FIG. 1;

fig. 4 is a schematic structural view of the second damping sleeve mechanism of fig. 1.

Icon: 10-a cushioned door spindle arrangement; 100-door spindle; 200-a first damping sleeve mechanism; 210-a first door spindle drum; 211-first abutment ring tooth; 230-a first stationary cartridge; 231-a first damping ring; 233-a first bolt; 250-a first torsion spring; 270-a first bearing; 300-a second damping sleeve mechanism; 310-a second mast section of thick bamboo; 311-second abutment ring teeth; 330-a second stationary cylinder; 331-a second damping ring; 333-a second bolt; 350-a second torsion spring; 370-second bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

First embodiment

Referring to fig. 1 in combination, the present embodiment provides a buffered door spindle 100 device 10, which includes a door spindle 100, a first damping sleeve mechanism 200 and a second damping sleeve mechanism 300, where the door spindle 100 is configured to be fixedly disposed on a door frame, the first damping sleeve mechanism 200 and the second damping sleeve mechanism 300 are disposed on the door spindle 100 at an interval and opposite to each other and connected to a door panel, and when the door panel is opened or closed, the first damping sleeve mechanism 200 and the second damping sleeve mechanism 300 can move synchronously.

The first damping sleeve mechanism 200 includes a first door shaft 100, a first fixing tube 230 and a first torsion spring 250, the first fixing tube 230 is detachably sleeved on the upper portion of the door shaft 100 and can synchronously rotate along with the door shaft 100, the first door shaft 100 is sleeved outside the first fixing tube 230 and can rotate relative to the first fixing tube 230, the first torsion spring 250 is disposed between the first door shaft 100 and the first fixing tube 230, and the first torsion spring 250 abuts against the inner side wall of the first door shaft 100 and is used for blocking the first door shaft 100 from rotating along the first rotation direction.

The second damping sleeve mechanism 300 comprises a second door shaft 100 cylinder, a second fixed cylinder 330 and a second torsion spring 350, the second fixed cylinder 330 is detachably sleeved on the lower portion of the door shaft 100 and can synchronously rotate along with the door shaft 100, the second door shaft 100 cylinder is sleeved outside the second fixed cylinder 330 and can rotate relative to the second fixed cylinder 330, the second torsion spring 350 is arranged between the second door shaft 100 cylinder and the second fixed cylinder 330, and the second torsion spring 350 is abutted against the inner side wall of the second door shaft 100 cylinder and used for blocking the second door shaft 100 cylinder from rotating along a second rotating direction, and the second rotating direction is opposite to the first rotating direction.

In this embodiment, the two ends of the door shaft 100 are provided with the connecting strips, the door shaft 100 is welded on the door frame through the two connecting strips, and the door plate is fixedly connected with the first door shaft 100 and the second door shaft 100, so that the door plate can rotate relative to the door shaft 100.

In this embodiment, the outer circumferential surface of the first door shaft 100 tube is provided with a first reinforcing connecting plate for connecting the door panel, the outer circumferential surface of the second door shaft 100 tube is provided with a second reinforcing connecting plate for connecting the door panel, and the first reinforcing connecting plate and the second reinforcing connecting plate extend outwards in the same direction.

The two ends of the first door shaft 100 cylinder are provided with first bearings 270, the outer ring of each first bearing 270 is fixedly connected with the inner wall of the first door shaft 100 cylinder, and the inner ring of each first bearing 270 is fixedly connected with the outer wall of the first fixed cylinder 230, so that the first door shaft 100 cylinder is rotatably sleeved on the first fixed cylinder 230.

Two ends of the second door shaft 100 cylinder are provided with second bearings 370, an outer ring of each second bearing 370 is fixedly connected with an inner wall of the second door shaft 100 cylinder, and an inner ring of each second bearing 370 is fixedly connected with an outer wall of the second fixed cylinder 330, so that the second door shaft 100 cylinder is rotatably sleeved on the second fixed cylinder 330.

In this embodiment, a first pin hole is formed in an upper portion of the door shaft 100, a first pin 233 is formed inside the first fixing tube 230, the first pin 233 is fitted into the first pin hole, a second pin hole is formed in a lower portion of the door shaft 100, and the second pin 333 is fitted into the second pin hole. Of course, the connection manner between the first fixed cylinder 230 and the second fixed cylinder 330 and the door shaft 100 may be a spline connection or a direct welding, and is not limited in particular.

Referring to fig. 2 to 4, the first torsion spring 250 has a structure identical to that of a conventional torsion spring and has a first upper end and a first lower end, the inner side of the first door shaft 100 is provided with a first abutting ring tooth 211, the first upper end abuts against the first abutting ring tooth 211 and can slide in a single direction relative to the first abutting ring tooth 211, the outer peripheral surface of the first fixing cylinder 230 is annularly provided with a first damping ring 231, the first damping ring 231 can rotate in a damping manner relative to the first fixing cylinder 230, and the first lower end is fixedly connected to the first damping ring 231.

In this embodiment, the outer peripheral surface of the first fixed cylinder 230 has a first annular groove, and the first damping ring 231 is accommodated in the first annular groove and abuts against the side wall of the first annular groove. When the first torsion spring 250 is deformed by force, the first damping ring 231 provides resistance by friction with the side wall of the first ring groove, thereby providing damping to the first door spindle 100.

When closing the door, the door plant drives a first door axle 100 section of thick bamboo and a second door axle 100 section of thick bamboo and rotates along first direction of rotation, and the first top butt of first torsion spring 250 is on first butt latch 211 this moment, and along with a rotation of a first door axle 100 section of thick bamboo, first torsion spring 250 expands and the energy storage to provide the resistance with first direction of rotation opposite through first butt latch 211, thereby realize closing the door in-process and provide the damping for the door plant, avoid closing the door action too big. When the door is opened, the door panel drives the first door shaft 100 cylinder and the second door shaft 100 cylinder to rotate along the second rotation direction, at this time, the first upper end of the first torsion spring 250 slides relative to the first abutting ring tooth 211, no force is transmitted between the first torsion spring 250 and the first door shaft 100 cylinder, and the first door shaft 100 cylinder can rotate freely relative to the first fixing cylinder 230.

The second torsion spring 350 has a second upper end and a second lower end, the inner side of the second door shaft 100 is provided with a second abutting ring tooth 311, the second upper end abuts against the second abutting ring tooth 311 and can slide in a single direction relative to the second abutting ring tooth 311, the outer peripheral surface of the second fixed cylinder 330 is annularly provided with a second damping ring 331, the second damping ring 331 can rotate in a damping manner relative to the second fixed cylinder 330, and the second lower end is fixedly connected with the second damping ring 331.

In this embodiment, the outer peripheral surface of the second fixed cylinder 330 has a second ring groove, and the second damping ring 331 is accommodated in the second ring groove and abuts against the side wall of the second ring groove. When the second torsion spring 350 is deformed by force, the second damping ring 331 provides resistance by friction with the sidewall of the second ring groove, thereby providing damping to the second door spindle 100.

When opening the door, the door plant drives a first door axle 100 section of thick bamboo and a second door axle 100 section of thick bamboo and rotates along the second direction of rotation, and the second top end butt of second torsional spring 350 is on second butt latch 311 this moment, and along with a rotation of a second door axle 100 section of thick bamboo, second torsional spring 350 expands and the energy storage to provide the resistance opposite with second direction of rotation through second butt latch 311, thereby realize closing the door in-process and provide the damping for the door plant, avoid opening the door and move too big. When closing the door, the door plant drives a first door axle 100 section of thick bamboo and a second door axle 100 section of thick bamboo and rotates along the second direction of rotation, and the relative second butt ring tooth 311 of second top end of second torsional spring 350 slides this moment, does not have the transmission of power between a second torsional spring 350 and a second door axle 100 section of thick bamboo, and a second door axle 100 section of thick bamboo can be fixed a section of thick bamboo 330 free rotation relatively the second.

In summary, in the practical use process of the buffer type door shaft 100 device 10 provided in this embodiment, when the door is closed, the door panel drives the first door shaft 100 cylinder and the second door shaft 100 cylinder to synchronously rotate along the first rotation direction, and at this time, the first torsion spring 250 blocks the first door shaft 100 cylinder from rotating and provides damping, so that the door closing action is slowed down, and accidents such as collision caused by too large door closing action are avoided; when opening the door, the door plant drives a first door axle 100 section of thick bamboo and a second door axle 100 section of thick bamboo and rotates along the second rotation direction synchronization, and second torsional spring 350 blocks a rotation of a second door axle 100 section of thick bamboo and provides the damping this moment for the action of opening the door slows down, avoids opening the door action too big and arouses accidents such as collision. Due to the arrangement of the first torsion spring 250 and the second torsion spring 350, the door opening and closing actions can be buffered, and the accidents that the door is opened or closed accidentally due to too hard force for opening or closing the door or too fast rotating speed of the door can be effectively avoided. Compared with the prior art, the utility model provides a pair of buffering formula door-hinge 100 device 10, its installation is simple, connects intensity high, can open the door or close the door the whole buffering effect that plays simultaneously, and long service life.

Second embodiment

The present embodiment provides a buffering door, which comprises a door frame, a door panel and a buffering door spindle 100 device 10, wherein the basic structure and principle of the buffering door spindle 100 device 10 and the generated technical effects are the same as those of the first embodiment, and for the sake of brief description, reference may be made to the corresponding contents of the first embodiment for parts that are not mentioned in the present embodiment.

The buffered door shaft 100 device 10 comprises a door shaft 100, a first damping sleeve mechanism 200 and a second damping sleeve mechanism 300, wherein the door shaft 100 is used for being fixedly arranged on a door frame, the first damping sleeve mechanism 200 comprises a first door shaft 100 cylinder, a first fixing cylinder 230 and a first torsion spring 250, the first fixing cylinder 230 is detachably sleeved on the upper part of the door shaft 100 and can synchronously rotate along with the door shaft 100, the first door shaft 100 cylinder is sleeved outside the first fixing cylinder 230 and can rotate relative to the first fixing cylinder 230, the first torsion spring 250 is arranged between the first door shaft 100 cylinder and the first fixing cylinder 230, and the first torsion spring 250 is abutted against the inner side wall of the first door shaft 100 cylinder and is used for preventing the first door shaft 100 cylinder from rotating along a first rotating direction; the second damping sleeve mechanism 300 comprises a second door shaft 100 cylinder, a second fixed cylinder 330 and a second torsion spring 350, the second fixed cylinder 330 is detachably sleeved on the lower portion of the door shaft 100 and can synchronously rotate along with the door shaft 100, the second door shaft 100 cylinder is sleeved outside the second fixed cylinder 330 and can rotate relative to the second fixed cylinder 330, the second torsion spring 350 is arranged between the second door shaft 100 cylinder and the second fixed cylinder 330, and the second torsion spring 350 is abutted against the inner side wall of the second door shaft 100 cylinder and used for blocking the second door shaft 100 cylinder from rotating along a second rotating direction, and the second rotating direction is opposite to the first rotating direction. The door shaft 100 is fixedly connected with one side of the door frame, and the door plate is fixedly connected with a first door shaft 100 tube and a second door shaft 100 tube respectively and can drive the first door shaft 100 tube and the second door shaft 100 tube to synchronously rotate.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A buffer type door spindle device is characterized by comprising a door spindle, a first damping sleeve mechanism and a second damping sleeve mechanism, wherein the door spindle is fixedly arranged on a door frame, the first damping sleeve mechanism comprises a first door spindle barrel, a first fixing barrel and a first torsion spring, the first fixing barrel is detachably sleeved on the upper portion of the door spindle and can synchronously rotate along with the door spindle, the first door spindle barrel is sleeved outside the first fixing barrel and can rotate relative to the first fixing barrel, the first torsion spring is arranged between the first door spindle barrel and the first fixing barrel, and the first torsion spring is abutted to the inner side wall of the first door spindle barrel and used for blocking the first door spindle barrel from rotating along a first rotating direction;

second damping sleeve mechanism includes the fixed section of thick bamboo of second door axle section of thick bamboo, second and second torsional spring, the fixed section of thick bamboo detachably of second is established the lower part of door axle can along with the synchronous rotation of door axle, the second door axle section of thick bamboo is established the fixed section of thick bamboo of second is outer and can be relative the fixed section of thick bamboo of second rotates, the second torsional spring sets up the second door axle section of thick bamboo with between the fixed section of thick bamboo of second, just the second torsional spring with the inside wall butt of the second door axle section of thick bamboo is used for blockking the second door axle section of thick bamboo rotates along the second direction of rotation, the second direction of rotation with first direction of rotation is opposite.

2. The buffer door shaft device according to claim 1, wherein the first torsion spring has a first upper end and a first lower end, the first door shaft cylinder is provided with a first abutting ring gear on an inner side thereof, the first upper end abuts against the first abutting ring gear and can slide in one direction relative to the first abutting ring gear, the first fixed cylinder is provided with a first damping ring on an outer peripheral surface thereof, the first damping ring can rotate in a damping manner relative to the first fixed cylinder, and the first lower end is fixedly connected to the first damping ring.

3. The cushioned door spindle assembly according to claim 2, wherein the first stationary tube has a first ring groove in an outer peripheral surface thereof, and wherein the first damping ring is received in the first ring groove and abuts against a side wall of the first ring groove.

4. The buffer type door shaft device according to claim 2, wherein the second torsion spring has a second upper end and a second lower end, the inner side of the second door shaft cylinder is provided with a second abutting ring gear, the second upper end abuts against the second abutting ring gear and can slide in a single direction relative to the second abutting ring gear, the outer peripheral surface of the second fixed cylinder is annularly provided with a second damping ring, the second damping ring can rotate in a damping manner relative to the second fixed cylinder, and the second lower end is fixedly connected with the second damping ring.

5. The cushioned door spindle assembly according to claim 4, wherein said second stationary tube has a second ring groove in an outer peripheral surface thereof, and said second damping ring is received in said second ring groove and abuts against a side wall of said second ring groove.

6. The buffer door shaft device according to claim 1, wherein first bearings are disposed at two ends of the first door shaft cylinder, an outer ring of the first bearing is fixedly connected to an inner wall of the first door shaft cylinder, and an inner ring of the first bearing is fixedly connected to an outer wall of the first fixed cylinder, so that the first door shaft cylinder is rotatably sleeved on the first fixed cylinder.

7. The buffer type door shaft device according to claim 6, wherein second bearings are arranged at two ends of the second door shaft cylinder, an outer ring of each second bearing is fixedly connected with an inner wall of the second door shaft cylinder, and an inner ring of each second bearing is fixedly connected with an outer wall of the second fixed cylinder, so that the second door shaft cylinder is rotatably sleeved on the second fixed cylinder.

8. The buffered door spindle assembly as defined in claim 1, wherein a first pin hole is formed at an upper portion of the door spindle, a first pin is formed at an inner side of the first fixing cylinder, the first pin is engaged with the first pin hole, a second pin hole is formed at a lower portion of the door spindle, and a second pin is formed at an inner side of the second fixing cylinder, the second pin is engaged with the second pin hole.

9. The buffer door shaft device according to claim 1, wherein the first door shaft tube is provided at an outer circumferential surface thereof with a first reinforcing connecting plate for connecting a door panel, the second door shaft tube is provided at an outer circumferential surface thereof with a second reinforcing connecting plate for connecting the door panel, and the first reinforcing connecting plate and the second reinforcing connecting plate extend outward in the same direction.

10. A buffering door, comprising a door frame, a door plate and the buffering door shaft device according to any one of claims 1 to 9, wherein the door shaft is fixedly connected to one side of the door frame, and the door plate is fixedly connected to the first door shaft cylinder and the second door shaft cylinder respectively and can drive the first door shaft cylinder and the second door shaft cylinder to rotate synchronously.