CN218279112U

CN218279112U - Writing board rotating mechanism with buffer device

Info

Publication number: CN218279112U
Application number: CN202222062657.3U
Authority: CN
Inventors: 荣悦明; 杨宗倩; 李川; 浦春良
Original assignee: Beijing Tiantan Markinsa Seat Co ltd
Current assignee: Beijing Tiantan Markinsa Seat Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-01-13
Anticipated expiration: 2032-08-05

Abstract

The utility model discloses a writing board rotating mechanism with a buffer device, wherein a U-shaped groove is arranged on a box body, and a first through hole is arranged on the box body; a rotating structure is arranged in the box body and comprises a rotating shaft frame, an installation shaft hole is formed in the rotating shaft frame, a stop spring is arranged in the installation shaft hole, a bracket shaft is arranged in the installation shaft hole, and the stop spring is positioned between the bracket shaft and the end of the installation shaft hole; a rotary damper is arranged on the rotary shaft frame, a through hole is formed in the rotary shaft frame, and a square hole for a rotary pin of the shaft frame to penetrate through is formed in the rotary damper; the rotating shaft frame is provided with a positioning groove, the bracket shaft is provided with a mounting hole, the mounting hole is provided with a limiting pin, and the limiting pin is arranged in the positioning groove; and a shaft bracket rotating pin shaft is arranged on the through hole and the square hole, and the rotating pin shaft penetrates through the square hole and the through hole. The utility model adopts the above structure a take buffer gear's board rotary mechanism can solve the collision and produce the pivoted problem when revolution mechanic vibrations abnormal sound and board use.

Description

Writing board rotating mechanism with buffer device

Technical Field

The utility model belongs to the technical field of the buffering technique and specifically relates to a take buffer's board rotary mechanism is related to.

Background

In a row chair used in a public place such as a hall and a report hall, when the row chair is used in a scene such as training and a meeting, a note book needs to be used, and therefore, a retractable tablet needs to be mounted on a chair armrest. Many existing tablet rotating mechanisms are easy to cause vibration and noise of handrails without a buffer device in the turning-up or recycling process, and are easy to rotate due to no stopping measures in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take buffer gear's board rotary mechanism solves the technical problem who mentions in the above-mentioned background art.

In order to achieve the purpose, the utility model provides a writing board rotating mechanism with a buffer device, which comprises a box body, wherein a U-shaped groove is arranged on the box body and is positioned at the end of the box body; the box body is provided with a first through hole which is positioned at two sides of the box body; a rotating structure is arranged in the box body and comprises a rotating shaft frame, an installation shaft hole is formed in the rotating shaft frame, a stop spring is arranged in the installation shaft hole, a bracket shaft is arranged in the installation shaft hole, and the stop spring is positioned between the bracket shaft and the end of the installation shaft hole; a rotary damper is arranged on the rotary shaft frame, a through hole is formed in the rotary shaft frame, and a square hole for a rotary pin of the shaft frame to penetrate through is formed in the rotary damper; the rotating shaft frame is provided with a positioning groove, the bracket shaft is provided with a mounting hole, the mounting hole is provided with a limiting pin, and the limiting pin is arranged in the positioning groove; and a shaft bracket rotating pin shaft is arranged on the through hole and the square hole, and the rotating pin shaft penetrates through the square hole and the through hole.

Preferably, the bracket shaft is provided with a mounting seat for mounting the writing board, the mounting seat is provided with a small hole for mounting the writing board, and the writing board is fixedly connected with the mounting seat.

Preferably, the through hole is a circular opening, and the first through hole is a square opening.

Preferably, the positioning groove is rotatably connected with the limiting pin, and the positioning groove prevents the bracket shaft from sliding out of the mounting shaft hole.

Preferably, the rotary shaft frame is provided with an insertion groove matched with the rotary damper, and the rotary damper is arranged in the insertion groove.

Preferably, a buffer rubber pad is arranged on the box body.

Preferably, the connecting part of the shaft frame rotating pin and the rotating damper is square, the connecting part of the shaft frame rotating pin and the through hole on the box body is square, and a split retainer ring fixedly connecting the shaft frame rotating pin and the box body is arranged on the shaft frame rotating pin.

Preferably, the rotating shaft bracket is provided with an upper shaft bracket decorative shell and a lower shaft bracket decorative shell, two sides of the upper shaft bracket decorative shell and two sides of the lower shaft bracket decorative shell are respectively provided with a semicircular hole, and a shaft bracket rotating pin penetrates through the semicircular holes; the ends of the upper shaft bracket decorative shell and the lower shaft bracket decorative shell are provided with semicircular holes for the bracket shaft to pass through.

Preferably, the rotary shaft frame is provided with salient points, and the upper shaft frame decorative shell and the lower shaft frame decorative shell are respectively provided with mounting holes matched with the salient points.

Therefore, the utility model adopts the above structure a take buffer's tablet rotary mechanism's advantage and positive effect are:

be provided with the locking spring in the mounting hole of this mechanism, extrude the locking spring through the bracket axle, can effectively prevent that the bracket axle from rocking from top to bottom. The rotating shaft frame is a high-strength nylon injection molding part, so that the structure has high strength and strong wear resistance, and the service life of the structure is greatly prolonged. The part of the rotating pin shaft penetrating through the damper is designed to be square, so that the relative rotation between the damper and the rotating pin shaft can be prevented, and the damping effect generated by the damper can effectively reduce the vibration and the sound generated when the writing board is turned up or recovered.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural view of a tablet rotating mechanism with a buffering mechanism according to an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of a tablet rotating mechanism with a buffering mechanism according to the present invention;

fig. 3 is a schematic view of a rotation structure of a tablet rotation mechanism with a buffering mechanism according to an embodiment of the present invention.

Reference numerals

1. A box body; 2. a U-shaped groove; 3. a first through hole; 4. a rotating shaft bracket; 5. installing the shaft hole; 6. a stopper spring; 7. a bracket shaft; 8. a rotary damper; 9. a through hole; 10. a square hole; 11. positioning a groove; 12. mounting holes; 13. a limit pin; 14. a pedestal swivel pin; 15. a mounting base; 16. putting the steel strip into a groove; 17. a cushion rubber pad; 18. a split washer; 19. an upper shaft frame decorative shell; 20. a lower shaft bracket decorative shell.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and the like in the description of the invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Fig. 1 is a schematic structural view of a tablet rotating mechanism with a buffering mechanism according to an embodiment of the present invention. Fig. 2 is an exploded view of an embodiment of a tablet rotating mechanism with a buffering mechanism according to the present invention. Fig. 3 is a schematic view of a rotation structure of a writing board rotation mechanism with a buffering mechanism according to an embodiment of the present invention. As shown in the figure, the tablet rotating mechanism with the buffer device comprises a box body 1, wherein a U-shaped groove 2 is formed in the end of the box body 1, and is positioned in the end of the box body. The box body 1 is provided with a first through hole 3. The first through hole 3 is a square mounting hole. The first through holes 3 are positioned on two sides of the box body. The box body 1 is internally provided with a rotating structure, the rotating structure comprises a rotating shaft frame 4, the rotating shaft frame 4 is provided with an installation shaft hole 5, and a stop spring 6 is arranged in the installation shaft hole 5. A bracket shaft 7 is arranged in the mounting shaft hole 5, and a stop spring 6 is positioned between the bracket shaft 7 and the end of the mounting shaft hole 5. The bracket shaft 7 is provided with a mounting seat 15 for mounting a writing board, the mounting seat 15 is provided with a small hole for mounting the writing board, and the writing board is fixedly connected with the mounting seat 15.

The rotary shaft frame 4 is provided with a rotary damper 8, the rotary shaft frame 4 is provided with a through hole for the shaft frame rotary pin 14 to pass through, the through hole is circular, and the shaft frame rotary pin 14 is rotatably connected with the rotary shaft frame 4. The rotary damper 8 is provided with a square hole 10 through which a pedestal rotary pin 14 passes. The rotary shaft frame 4 is provided with an insertion groove 16 matched with the rotary damper 8, and the rotary damper 8 is arranged in the insertion groove 16. The rotary damper 8 is fixedly mounted in the insertion slot 16. The rotating shaft frame 4 is provided with a positioning groove 11, the bracket shaft 7 is provided with a mounting hole 12, the mounting hole 12 is provided with a limiting pin 13 in an interference fit manner, and the limiting pin 13 is positioned in the positioning groove 11. The detent groove 11 is rotatably connected to the stopper pin 13, and the detent groove 11 prevents the carrier shaft 7 from slipping out of the mounting shaft hole 5. Since the stopper spring 6 is provided between the mounting-shaft hole 5 and the bracket shaft 7, the stopper spring 6 pushes the bracket shaft 7 tightly in the mounting-shaft hole 5, thereby improving the stability of the bracket shaft 7.

And a shaft bracket rotating pin shaft 14 is arranged on the through hole and the square hole 10 on the rotating shaft bracket 4, and the rotating pin shaft penetrates through the square hole 10 and the through hole. The connection part between the shaft frame rotating pin 14 and the rotary damper 8 is square, so that the relative rotation between the shaft frame rotating pin 14 and the rotary damping shaft center is prevented. Therefore, the damping effect is generated by driving the rotary damper 8 main body to rotate in the folding and unfolding of the desk plate, so that the vibration and the sound generated when the writing board is turned up and recovered are effectively reduced. The connection part of the shaft bracket rotating pin 14 and the through hole I3 on the box body 1 is square. The shaft frame rotating pin 14 is provided with a split retainer ring 18 which fixedly connects the shaft frame rotating pin 14 with the box body 1, and the shaft frame rotating pin 14 and the box body 1 are clamped by the split retainer ring 18, so that the shaft frame rotating pin 14 and the box body 1 are prevented from axial relative movement. Be provided with cushion rubber pad 17 in the box 1, cushion rubber pad 17 is located the rotating shaft frame 4 below, prevents that metal box 1 and revolution mechanic from directly colliding with, causing rotary mechanism to damage.

The rotating shaft bracket 4 is provided with an upper shaft bracket decorative shell 19 and a lower shaft bracket decorative shell 20, both sides of the upper shaft bracket decorative shell 19 and the lower shaft bracket decorative shell 20 are respectively provided with a semicircular hole, and the shaft bracket rotating pin 14 penetrates through the semicircular holes. The ends of the upper shaft bracket decorative shell 19 and the lower shaft bracket decorative shell 20 are provided with semicircular holes for the bracket shaft 7 to pass through. The rotary shaft bracket 4 is provided with convex points, and the upper shaft bracket decorative shell 19 and the lower shaft bracket decorative shell 20 are respectively provided with concave points. The upper shaft bracket decorative shell 19 and the lower shaft bracket decorative shell 20 are arranged on the rotary shaft bracket 4 by utilizing the clamping fixation of convex points and concave points. The positions of the rotary shaft bracket 4, such as ribs and grooves which are leaked outside, which affect the appearance, are covered by the upper shaft bracket decorative shell 19 and the lower shaft bracket decorative shell 20.

When the writing board is used, the bracket shaft 7 is rotated by 180 degrees on a vertical surface, the bracket shaft 7 is clamped in the U-shaped groove 2, the mounting seat 15 on the bracket shaft 7 is in a vertical state, the bracket shaft 7 is pushed inwards, the stop spring 6 is compressed, the bracket shaft 7 is rotated, the limit pin 13 rotates in the positioning groove 11, the mounting seat 15 is rotated to a horizontal state, the bracket shaft 7 is loosened, and the limit pin 13 tightly supports against the side wall of the positioning groove 11 under the action of the stop spring 6, so that the writing board is kept in a stable horizontal state.

Therefore, the utility model adopts the above structure a take buffer gear's board rotary mechanism can solve revolution mechanic vibrations abnormal sound and board when using the collision produce the pivoted problem.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced with equivalents, and these modifications or replacements do not make the modified technical solution depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a take buffer's board rotary mechanism which characterized in that: the box body is provided with a U-shaped groove which is positioned at the end of the box body; the box body is provided with a first through hole which is positioned at two sides of the box body; a rotating structure is arranged in the box body and comprises a rotating shaft frame, an installation shaft hole is formed in the rotating shaft frame, a stop spring is arranged in the installation shaft hole, a bracket shaft is arranged in the installation shaft hole, and the stop spring is positioned between the bracket shaft and the end of the installation shaft hole; a rotary damper is arranged on the rotary shaft frame, a through hole is formed in the rotary shaft frame, and a square hole for a rotary pin of the shaft frame to penetrate through is formed in the rotary damper; the rotating shaft frame is provided with a positioning groove, the bracket shaft is provided with a mounting hole, the mounting hole is provided with a limiting pin, and the limiting pin is arranged in the positioning groove; and a shaft bracket rotating pin shaft is arranged on the through hole and the square hole, and the rotating pin shaft penetrates through the square hole and the through hole.

2. A tablet rotation mechanism with a cushioning device according to claim 1, wherein: the bracket shaft is provided with a mounting seat for mounting a writing board, the mounting seat is provided with a small hole for mounting the writing board, and the writing board is fixedly connected with the mounting seat.

3. A tablet rotation mechanism with cushioning mechanism according to claim 1, wherein: the through hole is a circular opening, and the first through hole is a square opening.

4. A tablet rotation mechanism with a cushioning device according to claim 1, wherein: the locating groove is rotatably connected with the limiting pin and prevents the bracket shaft from sliding out of the mounting shaft hole.

5. A tablet rotation mechanism with cushioning mechanism according to claim 1, wherein: the rotary shaft frame is provided with a placing groove matched with the rotary damper, and the rotary damper is arranged in the placing groove.

6. A tablet rotation mechanism with cushioning mechanism according to claim 1, wherein: and the box body is provided with a buffer rubber pad.

7. A tablet rotation mechanism with cushioning mechanism according to claim 1, wherein: the shaft frame rotating pin is square in a connecting part with the rotating damper, is square in a connecting part with the through hole in the box body, and is provided with a split retainer ring fixedly connecting the shaft frame rotating pin with the box body.

8. A tablet rotation mechanism with cushioning mechanism according to claim 1, wherein: an upper shaft bracket decorative shell and a lower shaft bracket decorative shell are arranged on the rotating shaft bracket, semicircular holes are respectively formed in two sides of the upper shaft bracket decorative shell and the lower shaft bracket decorative shell, and a shaft bracket rotating pin penetrates through the semicircular holes; the ends of the upper shaft bracket decorative shell and the lower shaft bracket decorative shell are provided with semicircular holes for the bracket shaft to pass through.

9. A tablet rotation mechanism with cushioning mechanism according to claim 8, wherein: the rotary shaft frame is provided with salient points, and the upper shaft frame decorative shell and the lower shaft frame decorative shell are respectively provided with mounting holes matched with the salient points.