CN114515057A

CN114515057A - Telescopic folding mechanism

Info

Publication number: CN114515057A
Application number: CN202210151119.3A
Authority: CN
Inventors: 蔡磊; 王大飞; 姚康宁; 班怀国; 卢玉川; 田野; 王晓峰; 唐恒钊; 张秋冬; 刘琦
Original assignee: CETC 15 Research Institute
Current assignee: CETC 15 Research Institute
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-05-20

Abstract

The application relates to a telescopic folding mechanism which comprises a cabinet body, a first table plate, a second table plate, a third table plate and a fourth table plate, wherein the first table plate is connected with the cabinet body in a sliding mode and moves along the direction close to or far away from the cabinet body; the second table plate is provided with a first end and a second end which are opposite, the first end is movably connected with the cabinet body, and the second end rotates towards the direction close to or far away from the cabinet body; the third table plate is provided with a third end and a fourth end which are opposite, the third end is rotatably connected with the second end of the second table plate, and the fourth end rotates towards the direction close to or far away from the first end of the second table plate; the fourth table is provided with a fifth end and a sixth end which are opposite to each other, the fifth end is rotatably connected with the first end of the second table, and the sixth end rotates towards the direction close to or far away from the second end of the second table. Scalable folding mechanism has reduced the occupation space of workstation when satisfying the use of workstation through the expansion and folding to first table, second table, third table and fourth table.

Description

Telescopic folding mechanism

Technical Field

The application relates to the technical field of supports, in particular to a telescopic folding mechanism.

Background

In daily life, the application of workstation is more and more common, and the form of workstation is also more and more diversified simultaneously, but the vast majority of workstation is bulky, occupation space is big.

Disclosure of Invention

An object of the application is to provide a scalable folding mechanism, and this scalable folding mechanism has reduced the occupation space of workstation when satisfying the use of workstation through the expansion and the folding to first table, second table, third table and fourth table.

To this end, the application embodiment provides a telescopic folding mechanism, which comprises a cabinet body; the first table plate is arranged on the cabinet body and connected with the cabinet body in a sliding mode, and the first table plate moves along the direction close to or far away from the cabinet body; the second table board is provided with a first end and a second end which are opposite to each other along the length direction of the second table board, and the first end is movably connected with the cabinet body so that the second end rotates towards the direction close to or far away from the cabinet body; the third table plate is provided with a third end and a fourth end which are opposite to each other along the length direction of the third table plate, and the third end is rotatably connected with the second end of the second table plate so that the fourth end rotates towards the direction close to or far away from the first end of the second table plate; and the fourth table plate is provided with a fifth end and a sixth end which are opposite to each other along the length direction of the fourth table plate, and the fifth end is rotationally connected with the first end of the second table plate so that the sixth end rotates towards the direction close to or far away from the second end of the second table plate.

In a possible implementation manner, the first end of the second table is connected with the cabinet body in a rotating manner through the first rotating part, and the third end of the third table is connected with the second end of the second table in a rotating manner through the second rotating part.

In one possible implementation, the first rotating member is a retractable one-way hinge and the second rotating member is a retractable two-way hinge.

In a possible implementation manner, the table further comprises a first fixing frame and a second fixing frame, the first fixing frame is arranged on one surface, facing the ground, of the second table, the first rotating part is arranged on the first fixing frame, the second fixing frame is arranged on one surface, facing the ground, of the third table, and the second rotating part is arranged between the first fixing frame and the second fixing frame.

In one possible implementation, the system further comprises a sliding assembly, wherein the sliding assembly comprises: the sliding rail is arranged on the cabinet body; and the sliding part is arranged on the first table plate, is matched with the sliding rail and slides along the length direction of the sliding rail so as to drive the first table plate to be close to or far away from the cabinet body to move.

In a possible implementation manner, the multifunctional desk further comprises a cable drag chain, one end of the cable drag chain is connected with the first desk plate, and the other end of the cable drag chain is connected with the cabinet body.

In a possible implementation manner, an end of the second fixing frame, which is far away from the first fixing frame, extends out of the third table, and further includes a supporting assembly, where the supporting assembly includes: one end of the supporting arm is rotatably connected with one end of the second fixing frame extending out of the third table plate; the limiting block is arranged at one end, extending out of the third table plate, of the second fixing frame and used for limiting the rotation angle of the supporting arm; and one end of the nitrogen spring rod is rotatably connected with the other end of the supporting arm, and the other end of the nitrogen spring rod is rotatably connected with the second fixing frame.

In a possible implementation manner, the intelligent cabinet further comprises a guide rail arranged on the ground, one end of the cabinet body facing the ground is connected with the guide rail in a sliding manner, and the cabinet body moves back and forth along the length direction of the guide rail.

In a possible implementation manner, the cabinet further comprises a locking switch, and the locking switch is arranged with the cabinet body and used for positioning the position of the cabinet body at the guide rail.

In a possible implementation manner, the first desk board is provided with a first information box and a voice terminal, and the second desk board is provided with a second information box.

The telescopic folding mechanism comprises a cabinet body, a first table plate, a second table plate, a third table plate and a fourth table plate, wherein the first table plate is arranged on the cabinet body and connected with the cabinet body in a sliding mode, and the first table plate moves in a direction close to or far away from the cabinet body; the second table board is provided with a first end and a second end which are opposite to each other along the length direction of the second table board, and the first end is movably connected with the cabinet body so that the second end rotates towards the direction close to or far away from the cabinet body; the third table plate is provided with a third end and a fourth end which are opposite to each other along the length direction of the third table plate, and the third end is rotatably connected with the second end of the second table plate so that the fourth end rotates towards a direction close to or far away from the first end of the second table plate; the fourth table is provided with relative fifth end and sixth end along self length direction, and the fifth end rotates with the first end of second table to be connected, so that the sixth end is rotatory towards the direction that is close to or keeps away from the second end of second table. This scalable folding mechanism has reduced the occupation space of workstation when satisfying the use of workstation through expansion and folding to first table, second table, third table and fourth table.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. Further, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.

Fig. 1 is a front view of an unfolded retractable folding mechanism provided in an embodiment of the present application;

fig. 2 is a top view of an unfolded retractable folding mechanism provided in an embodiment of the present application;

FIG. 3 illustrates a front view of an embodiment of a retractable folding mechanism of the present application when deployed;

fig. 4 is a front view of a retractable folding mechanism provided in an embodiment of the present application when retracted;

fig. 5 is a front view of a retractable folding mechanism according to an embodiment of the present application after retraction.

Description of reference numerals:

1. a cabinet body; 11. a lock-up switch; 2. a first table; 21. a first information box; 22. a voice terminal; 3. A second table; 31. a first rotating member; 32. a first fixing frame; 33. a second information box; 4. a third table; 41. a second rotating member; 42. a second fixing frame; 5. a fourth table; 6. a slide rail; 7. a cable drag chain; 8. a support assembly; 81. a support arm; 82. a limiting block; 83. a nitrogen spring rod; 9. a guide rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 to 5 show a front view of a retractable folding mechanism provided in an embodiment of the present application after being unfolded, fig. 2 shows a top view of the retractable folding mechanism provided in an embodiment of the present application after being unfolded, fig. 3 shows a front view of the retractable folding mechanism provided in an embodiment of the present application after being unfolded, fig. 4 shows a front view of the retractable folding mechanism provided in an embodiment of the present application after being folded, and fig. 5 shows a front view of the retractable folding mechanism provided in an embodiment of the present application after being folded.

The embodiment of the application provides a scalable folding mechanism, including the cabinet body 1, first table 2, second table 3, third table 4 and fourth table 5. The first table board 2 is arranged on the cabinet body 1 and connected with the cabinet body 1 in a sliding manner, and the first table board 2 moves in a direction close to or far away from the cabinet body 1; the second table board 3 is provided with a first end and a second end which are opposite to each other along the length direction of the second table board, and the first end is movably connected with one end of the cabinet body 1 so that the second end rotates towards the direction close to or far away from the cabinet body 1; the third table plate 4 is provided with a third end and a fourth end which are opposite to each other along the length direction of the third table plate, and the third end is rotatably connected with the second end of the second table plate 3 so that the fourth end rotates towards the direction close to or far away from the first end of the second table plate 3; the fourth table is provided with relative fifth end and sixth end along self length direction, and the fifth end rotates with the first end of second table 3 to be connected, so that the direction that the second end of second table 3 was held towards or is kept away from to the sixth end is rotatory.

It should be understood that the cabinet 1 may have various shapes such as a cylinder shape or a rectangular parallelepiped shape, and herein, the cabinet 1 has a rectangular parallelepiped shape, one end of the cabinet 1 faces the ground, and one end of the cabinet 1 away from the ground is provided with the first table 2. The first table board 2 is plate-shaped, and the first table board 2 is arranged at one end of the cabinet body 1 far away from the ground, namely, the first table board 2 is positioned at the upper end of the cabinet body 1; the first table 2 is connected with the cabinet 1 in a sliding manner, that is to say, the first table 2 can move back and forth along a direction close to or far away from the cabinet 1.

The second table 3 is platelike, and the second table 3 also is located the cabinet body 1 and keeps away from the one end on ground, i.e. the upper end of the cabinet body 1, and the second table 3 is located the upper end of the cabinet body 1 and keeps away from first table 2 department. Second table 3 is provided with relative first end and second end along self length direction, and first end rotates with the cabinet body 1 to be connected, and the second end orientation is close to or keeps away from the direction rotation of the cabinet body 1. Herein, when the second end of the second table 3 is far away from the cabinet 1, the second table 3 is in an unfolded state, i.e. located in the extension plane of the first table 2 to form a table top of the workbench with the first table 2; when the second table 3 is close to the cabinet body 1, the second table 3 is folded, the second table 3 is attached to the upper plane of the cabinet body 1 under one condition, and the second table 3 is attached to the side surface of the cabinet body 1 under one condition.

The third table 4 is plate-shaped, and the third table 4 is provided with relative third end and fourth end along self length direction, and wherein, the third end is connected with the second end rotation of second table 3, and the fourth end is close to or is kept away from the direction rotation towards the first end of second table 3. When the fourth end of the third table top 4 is far away from the first end of the second table top 3, the third table top 4 is in an unfolded state, that is, the third table top 4 is located in an extension plane of the second table top 3; when the fourth end of third table 4 is close to the first end of second table 3, third table 4 is fold condition, and third table 4 and the range upon range of setting of second table 3 promptly.

The fourth table 5 is plate-shaped, and the fourth table 5 is provided with relative fifth end and sixth end along self length direction, and wherein, the fifth end rotates with the first end of second table 3 to be connected, and the sixth end is rotatory towards the direction that the second end of second table 3 is close to or keeps away from. The fifth end of fourth table 5 is connected in the first end of second table 3 through articulated mode, and when the sixth end of fourth table 5 was kept away from the second end of second table 3, fourth table 5 was the state of expanding, namely, fourth table 5 was located the extension face of second table 3, and here, when fourth table 5 was with be located the extension face of second table 3 in, the upper plane laminating of fourth table 5 and cabinet body 1 also constituted the mesa of workstation with first table 2 simultaneously. When the sixth end of the fourth table 5 is close to the second end of the second table 3, the fourth table 5 is in a folded state, that is, the fourth table 5 and the second table 3 are stacked, in this context, when the fourth table 5 is folded, the fourth table 5 may also be stacked with the third table 4 and located between the third table 4 and the fourth table 5.

During the use, slide first table 2 and the cabinet body 1 earlier, make first table 2 keep away from the cabinet body 1 and reserve the position for fourth table 5, then rotate second table 3, make second table 3 and first table 2 be located the coplanar, rotate fourth table 5 again, make fourth table 5 and the laminating of the last plane of the cabinet body 1, lie in the same horizontal plane with first table 2 and second table 3 promptly, rotate third table 4 at last, make third table 4 and first table 2, second table 3 and fourth table 5 lie in the mesa that the same horizontal plane constitutes the workstation jointly. The order of rotation of the first table 2, the second table 3, and the fourth table 5 may be changed.

When the cabinet does not need to be used, the second table plate 3, the third table plate 4 and the fourth table plate 5 are rotated, so that the second table plate 3 is attached to the side face of the cabinet body 1, the second table plate 3, the third table plate 4 and the fourth table plate 5 are overlapped and contracted, and the first table plate 2 is further slid towards the upper side of the cabinet body 1; thereby contracting the application.

This application realizes flexible folding function with the mesa of workstation through first table 2, second table 3, third table 4 and fourth table 5, reaches traditional single stage mechanism's quadruple, and simple structure and convenient to use, other occasions that need save space of being convenient for popularize.

In an alternative embodiment, a first end of the second table top 3 is rotatably connected to the cabinet 1 through the first rotating member 31, and a third end of the third table top 4 is rotatably connected to a second end of the second table top 3 through the second rotating member 41. The second table top 3 is connected with the cabinet 1 through the first rotating member 31, so that the second table top 3 rotates around the first rotating member 31, and the third table top 4 is connected with the second table top 3 through the second rotating member 41, so that the third table top 4 rotates around the second rotating member 41.

Further, the first rotating member 31 is a retractable one-way hinge, and the second rotating member 41 is a retractable two-way hinge. The first rotating member 31 is provided with a retractable one-way hinge, so that the second table board 3 can rotate smoothly and save materials. The second rotating part 41 is a telescopic bidirectional hinge, so that the third table plate 4 and the second table plate 3 can rotate more smoothly, and the third table plate 4 and the second table plate 3 can be stacked more conveniently.

In some optional embodiments, the table further comprises a first fixing frame 32 and a second fixing frame 42, the first fixing frame 32 is disposed on a surface of the second table 3 facing the ground, the first rotating member 31 is mounted on the first fixing frame 32, the second fixing frame 42 is disposed on a surface of the third table 4 facing the ground, and the second rotating member 41 is mounted between the first fixing frame 32 and the second fixing frame 42. First rotation piece 31 is installed in the one end of first mount 32 towards the cabinet body 1, and first mount 32 can take place to rotate with the cabinet body 1 to do not influence the rotation of second table 3 with the cabinet body 1, first mount 32 has improved the stability when second table 3 expandes, has further improved the result of use of this application. The second rotates the piece 42 and installs between first mount 32 and second mount 42 for first mount 32 can take place to rotate with second mount 42, does not influence the rotation between second table 3 and the third table 4, and has further improved the stability when third table 4 expandes, has improved the result of use of this application.

In one embodiment, the end of the second fixing frame 42 away from the first fixing frame 32 can be connected with a wall, so that the contracted application can be placed on the wall conveniently, and the occupied area of the application is reduced. Further, the number of the first fixing frames 32 and the number of the second fixing frames 42 may be respectively set to 2, so as to respectively improve the stability of the second table board 3 and the third table board 4.

In some optional examples, the present application further includes a sliding assembly, the sliding assembly includes a sliding rail 6 and a sliding member, wherein the sliding rail 6 is disposed on the cabinet 1; the sliding piece is arranged on the first table board 2, is matched with the sliding rail 6 and slides along the length direction of the sliding rail 6 so as to drive the first table board 2 to move close to the cabinet body 1.

It should be understood that the sliding rail 6 is disposed on the upper plane of the cabinet 1, and one end of the sliding rail 6 extends out of the upper plane of the cabinet 1. The sliding part can be a sliding block or a pulley and the like, is arranged on one side surface of the first table board 2 facing the cabinet body 1, and relatively moves in the sliding rail 6 when the sliding part, so that the first table board 2 is driven to move relative to the cabinet body 1.

Herein, this application still includes cable tow chain 7, and the one end and the first table 2 of cable tow chain 7 are connected, and the other end and the cabinet body 1 of cable tow chain 7 are connected. For making the sliding part in 6 automatic movement of slide rail, this application is provided with the cable, in order to avoid the cable to first table 2 and the influence of the cabinet body 1 relative motion, this application is provided with cable tow chain 7, and the cable is arranged in the inner chamber of cable tow chain 7, and the one end of cable tow chain 7 is connected with the last plane of the cabinet body 1, and the other end and the one side of the cabinet body 1 of first table 2 orientation of cable tow chain 7 are connected.

Further, in order to accommodate the cable drag chain 7, an accommodating cavity can be opened at the upper end of the cabinet body 1.

In an alternative example, the end of the second fixing frame 42 away from the first fixing frame 32 extends out of the third table 4, and the present application further includes a support assembly 8, where the support assembly 8 includes a support arm 81, a limiting block 82, and a nitrogen spring rod 83. One end of the supporting arm 81 is rotatably connected with one end of the second fixing frame 42 extending out of the third table plate 4; the limiting block 82 is arranged at one end of the second fixing frame 42 extending out of the third table board 4, and is used for limiting the rotation angle of the supporting arm 81; one end of the nitrogen spring rod 83 is rotatably connected with the other end of the supporting arm 81, and the other end of the nitrogen spring rod 83 is rotatably connected with the second fixing frame 42.

It should be understood that the end of the second fixing frame 42 away from the first fixing frame 32 extends out of the third table 4, so as to facilitate the installation of the supporting arm 81 and not affect the normal use of the third table 4. The limiting block 82 is close to the supporting arm 81, and the limiting block 82 is arranged so that the supporting arm 81 cannot rotate continuously when rotating to be vertical to the second fixing frame 42. During the use, support arm 81 rotates for support arm 81 is perpendicular with second mount 42, and nitrogen gas spring rod 83 extension and both ends all rotate this moment, and then support second mount 42, and then support third table 4. After use, the supporting arm 81 rotates, the rotated supporting arm 81 is parallel to the third table 4, and at this time, the nitrogen spring rod 83 contracts. Positioning holes or positioning parts can be arranged at the second fixing frame 42, so that the contracted nitrogen elastic rod 83 and the supporting arm 81 can be conveniently fixed with the second fixing frame 42.

The one side that support arm 81 deviates from nitrogen gas elastic rod 83 is the plane, can laminate with the wall to can support arm 81, and then improve the stability of this application.

Further, the limiting block 82 is cylindrical. One end of the limiting block 82 is connected with the second fixing frame 42, the other end of the limiting block protrudes out of the plane of the second fixing frame 42, so that the supporting arm 81 is limited, and the influence on the rotation of the supporting arm 81 is reduced due to the cylindrical arrangement of the limiting block 82.

In an optional example, the wardrobe further comprises a guide rail 9 arranged on the ground, one end, facing the ground, of the wardrobe body 1 is connected with the guide rail 9 in a sliding mode, and the wardrobe body 1 moves back and forth along the length direction of the guide rail 9. The guide rail 9 can be provided with two, and then improve gliding stability between the cabinet body 1 and the guide rail 9, the one end and the wall contact of guide rail 9, support arm 81 and the wall laminating after being convenient for expand. The cabinet body 1 can be provided with sliders such as sliders or pulleys towards one end of the ground, so that the cabinet body 1 can slide more smoothly along the length direction of the guide rail.

One end and the wall contact of guide rail 9 when need not use this application, can remove wall department after folding the shrink with first table 2, second table 3, third table 4 and fourth table 5, reduce the occupation space to this application. When needs use, slide the cabinet body 1 along the direction that deviates from the wall, then expand first table 2, second table 3, third table 4 and fourth table 5 and form the workstation and use.

Further, the cabinet further comprises a locking switch 11, and the locking switch 11 is arranged on the cabinet 1 and used for positioning the cabinet 1 at the position of the guide rail 9. The locking switch 11 can fix the cabinet 1 at any position of the guide rail 9. The locking switch 11 may be a positioning pin, and the cabinet 1 is fixed to the guide rail 9 by inserting into the guide rail 9. The lock switch 11 may fix the cabinet 1 to the rail 9 by abutting against the rail 9. The locking switch 11 can also fix the cabinet 1 to the guide rail 9 in a clamping manner. The locking switch 11 can also fix the cabinet 1 to the guide rail 9 in other manners, which is not described in detail herein.

In some embodiments, the first desk 2 is provided with a first information box 21 and a voice terminal 22, and the second desk 3 is provided with a second information box 33, so as to facilitate the user to work.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest manner such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers in between, and "above … …" or "above … …" includes not only the meaning of "above something" or "above", but may also include the meaning of "above" or "above" with no intervening features or layers in between (i.e., directly on something).

Furthermore, spatially relative terms, such as "under," "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A retractable folding mechanism, comprising:

a cabinet body;

the first table plate is arranged on the cabinet body and connected with the cabinet body in a sliding mode, and the first table plate moves along the direction close to or far away from the cabinet body;

the second table board is provided with a first end and a second end which are opposite to each other along the length direction of the second table board, and the first end is movably connected with the cabinet body so that the second end rotates towards the direction close to or far away from the cabinet body;

the third table plate is provided with a third end and a fourth end which are opposite to each other along the length direction of the third table plate, and the third end is rotatably connected with the second end of the second table plate so that the fourth end rotates towards the direction close to or far away from the first end of the second table plate; and

the fourth table is provided with a fifth end and a sixth end which are opposite to each other along the length direction of the fourth table, the fifth end is rotatably connected with the first end of the second table, so that the sixth end rotates towards the direction close to or far away from the second end of the second table.

2. The retractable folding mechanism as claimed in claim 1, wherein the first end of the second table is rotatably connected to the cabinet via a first rotating member, and the third end of the third table is rotatably connected to the second end of the second table via a second rotating member.

3. The retractable folding mechanism of claim 2 wherein said first rotating member is a retractable one-way hinge and said second rotating member is a retractable two-way hinge.

4. The retractable folding mechanism as claimed in claim 2, further comprising a first fixing frame and a second fixing frame, wherein the first fixing frame is disposed on a surface of the second table board facing the ground, the first rotating member is mounted on the first fixing frame, the second fixing frame is disposed on a surface of the third table board facing the ground, and the second rotating member is mounted between the first fixing frame and the second fixing frame.

5. The retractable folding mechanism of claim 1, further comprising a glide assembly, said glide assembly comprising:

the sliding rail is arranged on the cabinet body; and

the sliding piece is arranged on the first table plate, the sliding piece is matched with the sliding rail and slides along the length direction of the sliding rail so as to drive the first table plate to be close to or far away from the cabinet body to move.

6. The retractable folding mechanism of claim 5, further comprising a cable drag chain, wherein one end of the cable drag chain is connected to the first table, and the other end of the cable drag chain is connected to the cabinet.

7. The retractable folding mechanism of claim 4, wherein an end of the second mount, which is away from the first mount, extends beyond the third table, further comprising a support assembly, the support assembly comprising:

one end of the supporting arm is rotatably connected with one end of the second fixing frame extending out of the third table plate;

the limiting block is arranged at one end, extending out of the third table plate, of the second fixing frame and used for limiting the rotating angle of the supporting arm; and

and one end of the nitrogen elastic rod is rotatably connected with the other end of the supporting arm, and the other end of the nitrogen elastic rod is rotatably connected with the second fixing frame.

8. The retractable folding mechanism as claimed in claim 1, further comprising a rail disposed on the ground, wherein one end of the cabinet facing the ground is slidably connected to the rail, and the cabinet moves back and forth along the length direction of the rail.

9. The retractable folding mechanism of claim 8, further comprising a locking switch disposed with the cabinet for positioning the cabinet at the rail.

10. The retractable folding mechanism as recited in claim 1, wherein said first table is provided with a first information box and a voice terminal, and said second table is provided with a second information box.