CN113907507A

CN113907507A - Telescopic table plate device of folding table

Info

Publication number: CN113907507A
Application number: CN202111319089.4A
Authority: CN
Inventors: 蒋晶磊
Original assignee: Yixiang Blow Molding Furniture Ningbo co Ltd
Current assignee: Yixiang Blow Molding Furniture Ningbo co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-01-11
Also published as: US20230157443A1

Abstract

The invention relates to a telescopic table plate device of a folding table, comprising: the first main panel is a telescopic frame with a sliding rail device and comprises a fixed frame connected with a pin joint device and a movable frame arranged on the fixed frame in a sliding way, the first main panel is fixedly connected with the movable frame and can reciprocate relative to the fixed frame through the sliding rail device, and the movable panel is arranged on the fixed frame and can be selectively arranged between the first main panel and the second main panel or hidden below the first main panel. The table plate of the invention can be folded, can realize length adjustment, is convenient to operate, and the movable frame is linked with the main panel, so that the main panel is always supported by the frame, and the strength of the table plate is ensured.

Description

Telescopic table plate device of folding table

Technical Field

The invention relates to a table plate structure, in particular to a telescopic table plate device of a folding table, which can realize the telescopic of a table top.

Background

At present, all have the butt joint panel that can fold each other in many furniture products, for example common folding table, when opening, two butt joint panels can dock into the table each other, and during folding, two butt joint panels can fold together, make the desk volume diminish, conveniently carry, accomodate and transport. However, although a common folding table can be folded, the table top cannot be stretched, and after the folding table is unfolded, the length of the table top is fixed and cannot be extended, so that the folding table cannot be adjusted according to the number of articles to be placed or the number of people to sit on. Such a folding table structure is disclosed in publication No. CN207428721U, specifically: the foldable frame mainly comprises a left panel and a right panel which are the same in size and shape, a left frame and a right frame which are fixed at the bottoms of the left panel and the right panel respectively, and two foldable supports which are movably connected with the left frame and the right frame, wherein a connecting cross rod is arranged at the butt joint of the left panel and the right panel, the left frame and the right frame comprise connecting vertical rods which are parallel to each other and are fixed at the two side parts of the bottoms of the left panel and the right panel respectively, and a rotating shaft is rotatably arranged between the two connecting vertical rods. This folding table can fold, but the desktop can not stretch out and draw back, expandes the back, and desktop length is fixed can not extend, can't adjust according to what of putting article or the number of people of sitting etc..

Therefore, the table plate of the existing folding table can not realize the functions of folding and stretching at the same time.

In view of the above, in order to make the foldable table foldable and to adjust the length of the table top, it is necessary to improve the existing table top.

Disclosure of Invention

The invention aims to solve the technical problem that the length of the table top of the existing folding table cannot be adjusted by providing a telescopic table top device of the folding table aiming at the current state of the prior art.

The first technical problem to be solved by the invention adopts the technical scheme that: this folding table device that stretches out and draws back includes: a first main panel, the back of which is provided with a first pedestal; the second main panel can be butted with the first main panel, and the back of the second main panel is provided with a second pedestal; the first base frame and the second base frame are connected through a pivoting device and can be folded around a pivoting shaft to link the first main panel and the second main panel to realize folding; the first base frame is a telescopic frame with a sliding rail device and comprises a fixed frame connected with a pin joint device and a movable frame arranged on the fixed frame in a sliding way, the first main panel is fixedly connected with the movable frame and can reciprocate relative to the fixed frame through the sliding rail device, the fixed frame is provided with a movable panel which can turn upwards or downwards relative to the fixed frame, and the movable panel is a foldable panel and can be selectively arranged between the first main panel and the second main panel or hidden below the first main panel.

Preferably, the movable panel is arranged on the middle beam in the fixed frame in a reversible manner, and the movable panel is formed by connecting a first panel and a second panel which can be folded oppositely. The connection between the two can adopt a plurality of schemes, such as the connection through hinges, or the first panel and the second panel are made into an integral structure and connected by a flexible sheet which can be folded, thus the movable panel can be conveniently pulled out or folded. When the movable panel is turned over and returned to be hidden under the first main panel, the folded first panel and the folded second panel cannot be separated, a separation-preventing device is arranged between the first panel and the second panel, the device can adopt a simple magnetic adsorption device, namely, strong magnets which can be mutually adsorbed are respectively arranged in the first panel and the second panel, so that the unconnected sides of the two panels can be firmly adsorbed together.

Preferably, the fixed frame is substantially square-shaped and comprises a longitudinal front fixed boundary beam, a longitudinal rear fixed boundary beam, a transverse left fixed boundary beam and a transverse right fixed boundary beam, wherein the front fixed boundary beam and the rear fixed boundary beam are respectively connected with the front pivoting seat and the rear pivoting seat of the pivoting device, and the right fixed boundary beam is connected between the front pivoting seat and the rear pivoting seat; the movable frame comprises a longitudinal front movable boundary beam and a longitudinal rear movable boundary beam, and the front movable boundary beam and the rear movable boundary beam are respectively arranged on the front fixed boundary beam and the rear fixed boundary beam in a sliding manner; the middle beam is a longitudinal beam connected between the left fixed side beam and the right fixed side beam.

The slide rail device may include: the front fixed edge beam and the rear fixed edge beam are both provided with fixed sliding rail grooves, and a plurality of rolling parts are rotatably arranged in the fixed sliding rail grooves; the front movable edge beam and the rear movable edge beam are both provided with movable sliding rail grooves which are in sliding contact fit with the rolling surfaces of the excircle of the rolling element; and the limiting structure is used for limiting the displacement of the braking sliding rail groove on the fixed sliding rail groove. The limiting structure is mainly used for limiting the maximum pulling-out distance of the first main panel so as to prevent the first main panel from being pulled out infinitely. It can be realized by adopting the following structure: the limiting stopper is convexly arranged on the lower side part of the left end of the front and rear fixed side beams, and the limiting protrusions which are convexly arranged on the front and rear sides of the back of the first main panel and can collide with the limiting stopper. When the limit bulge on the first main panel collides with the limit stop blocks on the front and rear fixed edge beams, the first main panel can not be pulled out.

The rolling elements can be rollers, bearings, rollers and the like.

Preferably, in order to better adapt to outdoor use, the first main panel, the second main panel and the movable panel are hollow blow molding panels, grooves and lugs distributed at intervals are formed on the butt joint surfaces of the movable panel and the first main panel and the second main panel, after the movable panel is in butt joint with the two main panels, the lugs on the movable panel are embedded with the grooves on the two main panels, and the grooves on the movable panel are embedded with the lugs on the two main panels. Conventionally, under the butt joint state of two main panels, the upper side parts of the butt joint surfaces are in plane butt joint, and the lower side parts are sequentially embedded by a groove and a bump which are arranged between the upper side parts and the lower side parts; similarly, the left and right sides of the movable panel are butt joint surfaces respectively butt joint with the two main panels, under the butt joint state of the movable panel and the two main panels, the upper side parts of the butt joint surfaces are in plane butt joint, and the lower side parts are also sequentially embedded by the grooves and the convex blocks between the upper side parts and the lower side parts. By adopting the structure, the movable panel can be occluded with the first main panel and the second main panel, the phenomena of upwarp, unevenness and the like can not be generated, the structural strength of the butt joint of the panels is improved, the butt joint seam can be reduced, and the flatness of the table board can be ensured.

Compared with the prior art, the invention has the advantages that: one of the base frames is designed into a telescopic structure consisting of a movable frame and a fixed frame, so that one main panel can slide along with the movable frame, the fixed frame is provided with a movable panel which can be turned outwards, and when the desk plate needs to be lengthened, the movable panel is turned outwards to be butted with the two main panels; when the table is not required to be lengthened, the movable panel retracts to be hidden below the main panel, so that the appearance and the use of the folding table cannot be influenced, the operation is convenient, the table can be folded, the length can be adjusted, the movable frame is linked with the main panel, the main panel is always supported by the frame, and the strength of the table is ensured.

Drawings

Fig. 1 is a schematic view of the table in an un-extended state according to the embodiment of the present invention.

Fig. 2 is a schematic view of the first main panel in fig. 1 in an exploded state.

Fig. 3 is a schematic view of the first and second main panels and the movable panel of fig. 1 in an inverted state.

FIG. 4 is a schematic view of the first main panel after stretching according to the embodiment of the present invention.

Fig. 5 is a schematic view of fig. 4 in an inverted state.

Fig. 6 is a schematic view of the table plate in an extended state after the movable panel in fig. 4 is turned out and unfolded.

Fig. 7 is a schematic view of fig. 6 in an inverted state.

Fig. 8 is an exploded view of the first and second main panels and the movable panel shown in fig. 6.

Fig. 9 is a first schematic diagram of the embodiment of the present invention in a folded state.

Fig. 10 is a second schematic view of the embodiment of the present invention in a folded state.

Fig. 11 is a schematic view of fig. 10 after the first main panel is disassembled.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 to 8, the present embodiment is a folding table equipped with a retractable table device according to the present invention, including a table 100 and a table frame 200 matching with the table, the table frame 200 includes a first base frame 3a and a second base frame 3b of the retractable table device, and a first foot rest 2a and a second foot rest 2b are respectively connected below the first base frame 3a and the second base frame 3b, wherein:

the table 100 comprises a first main panel 1a, a second main panel 1b and a movable panel 1c, wherein the first main panel 1a and the second main panel 1b have the same shape, the same size or the same basic shape (as shown in fig. 8). However, the first and second main panels 1a and 1b are not limited thereto, and may be adjusted according to specific requirements. The movable panel 1c can be spliced between the first and second main panels 1a and 1b to lengthen the length of the table, and the movable panel 1c can be one or more, but one of the embodiments is preferred. In order to better adapt to outdoor use, the first main panel 1a, the second main panel 1b and the movable panel 1c are hollow blow-molded panels (the concave structures at the bottoms of the panels are omitted in the figure). As is conventional, the opposite side portions of the first and second main panels 1a and 1b, i.e. the lower portions of the butting surfaces to be butted against each other, are integrally formed with the recesses 14 and the protrusions 13 distributed in a staggered manner, in the state where the first and second main panels 1a and 1b are butted against each other, the upper side portions of the butting surfaces are in plane butting, and the lower side portions are in sequential tabling butting with the recesses 14 and the protrusions 13 therebetween, so that the table plate is in the state of the conventional double-spliced panel shown in fig. 1. Similarly, the left and right sides of the movable panel 1c are butt joint surfaces respectively butt joint with the first and second main panels, the lower parts of the two sides are also integrally formed with the grooves 14 and the projections 13 which are distributed in a staggered manner, when the movable panel 1c is butt joint with the first and second main panels 1a and 1b, the upper side parts of the butt joint surfaces are also in plane butt joint, the lower side parts are also in sequential tabling butt joint with the grooves 14 and the projections 13 which are arranged between the lower side parts, namely, the projections 13 on the movable panel 1c are tabling with the grooves 14 on the first and second main panels 1a and 1b, the grooves on the movable panel 1c are tabling with the projections 13 on the first and second main panels 1a and 1b, and the desk plate at this time is in the extended and lengthened state shown by 6. By adopting the structure, the structural strength of the butt joint of the panels is improved, the butt joint seam can be reduced, and the flatness and the attractiveness of the table board 100 can be ensured.

As shown in FIG. 3, the movable panel 1c is a foldable panel which is composed of a first panel 101 and a second panel 102 connected to each other in such a manner that the connection is folded in half. The connection mode of the first panel 101 and the second panel 102 can be various, for example, the connection mode of the two panels can be various, such as the connection with the material skin 103 shown in the figure of the embodiment, that is, the first panel 101 and the second panel 102 are an integral structure, and the two panels are connected by a foldable flexible sheet; or can be connected through a hinge, so that the movable panel 1c can be conveniently unfolded or folded. In order to prevent the first panel 101 and the second panel 102 from being separated after being folded, a separation preventing device is further arranged between the first panel 101 and the second panel 102, and the device can adopt a simple magnetic adsorption device, namely, strong magnets 104 which can be mutually adsorbed are respectively arranged in the first panel 101 and the second panel 102, so that the unconnected sides of the two

panels

101 and 102 can be firmly adsorbed together.

The movable panel 1c is hidden under the first main panel 1a when the table is not extended, and is rotatably connected to the center beam 313 of the fixed frame 31. When the desk needs to be lengthened, after the first main panel 1a is pulled open, the movable panel 1c can be rotated and turned out, and the first panel 101 and the second panel 102 can be unfolded to be supported on the fixed frame 31, so that the movable panel 1c is arranged between the first main panel 1a and the second main panel 1b, and the desk is lengthened as shown in fig. 4-6. The front and rear sides of the movable panel 1c are also provided with downwardly extending flanges which cover the fixed frame 31.

The table frame 200, which is foldable, mainly includes a first base frame 3a installed on the back of the first main panel 1a, a first foot rest 2a connected under the first base frame 3a, and a second base frame 3b installed on the back of the second main panel 1b, a second foot rest 3a connected under the second base frame 3 b. The first base frame 3a and the second base frame 3b are connected by the front and

rear pivoting devices

4a, 4b and can be folded around the pivoting shaft 41, and the first main panel 1a and the second main panel 1b are connected for folding. The first and second foot rests 2a, 2b, the second base frame 3b, and the front and

rear pivoting devices

4a, 4b may be of conventional structures, and thus are not described in detail. It should be noted that they may be modified or other known techniques may be adopted in addition to the schemes shown in the drawings of the present embodiment.

The first base frame 3a of the present invention is a telescopic frame, which includes a fixed frame 31 connected to the front and

rear pivoting devices

4a, 4b and a movable frame 32 slidably disposed on the fixed frame, the movable panel 1c is mounted on the fixed frame 31 and can be turned out, and the first main panel 1a and the first leg frame 2a are both fixedly connected to the movable frame 32 and are linked with the movable frame 32. And a slide rail device is arranged between the movable frame 32 and the fixed frame 31, so that the first main panel 1a can move back and forth on the fixed frame 31, when the desk is to be lengthened, only the first main panel 1a is moved (away from the direction of the second main panel, as shown in fig. 4), so that the movable panel 1c can be rotated and turned out and horizontally connected with the second main panel 1b, and then the first main panel 1a is moved reversely to be connected with the movable panel 1c, so that the desk has the lengthened state shown in fig. 6 formed by splicing the first main panel 1a, the movable panel 1c and the second main panel 1 b. If the desk plate does not need to be lengthened, the desk plate is in a state that the first main panel 1a and the second main panel 1b are butted, the movable panel 1 is folded and collected and hidden below the first main panel 1a, and the movable panel 1c cannot be seen on the desktop, as shown in fig. 1-3.

The fixed frame 31 is substantially square-shaped and includes front and rear

fixed side beams

311a and 311b in a longitudinal direction (which means a rectangular direction of the table), and left and right fixed

side beams

312a and 312b in a transverse direction (which means a width direction of the table), wherein the front and rear

fixed side beams

311a and 311b are respectively connected to the pivot seats of the front and

rear pivot units

4a and 4b, and the right fixed side beam 312b is connected between the front and

rear pivot units

4a and 4 b. The middle beam 313 for installing the movable panel 1c is longitudinally arranged and connected between the left fixed side beam 312a and the right fixed side beam 312b, the movable panel 1c can be installed on the middle beam 313 by using a locking piece 315 and a bolt type connecting piece, and a baffle plate is arranged on the right fixed side beam 312b in an extending way for supporting and positioning the movable panel 1 c. The front fixed side beam 311a and the rear fixed side beam 311b are both rectangular plates with a cross section in a [ "shape, the groove on the front fixed side beam is a fixed sliding rail groove 3111, and a plurality of rolling pieces 314 arranged at intervals are distributed in the fixed sliding rail groove 3111. The rolling member 314 may be a roller, a bearing, a roller, or the like, and may be rotatably disposed in a length direction.

The shape of the movable frame 32 is substantially the same as that of the second base frame 3b, and the main difference is that the longitudinal front movable edge beam 321a and the rear movable edge beam 321b are designed to be slidable structures matched with the fixed frame 31, specifically: the front movable edge beam 321a and the rear movable edge beam 321b are matched with the front and rear fixed

edge beams

311a and 311b, and one section of the front movable edge beam and the rear movable edge beam is a long strip-shaped plate with a cross section in a shape like a Chinese character 'ji', and a groove on the front movable edge beam and the rear movable edge beam is set as a movable sliding rail groove 3211 which is in contact fit with the excircle rolling surface of the rolling element 314 in the fixed sliding rail groove 3111 in a sliding manner. And a limit structure is provided between the movable sliding rail groove 3211 and the fixed sliding rail groove 3111 for limiting the displacement of the brake sliding rail groove 3211 on the fixed sliding rail groove 3111, so that the maximum pull-out distance of the first main panel 1a can be limited to prevent infinite pull-out. It can be realized by adopting the following structure: a limit stop 3112 is convexly provided on the lower side portion of the left end of the front and rear fixed

side beams

311a, 311b, and correspondingly, limit protrusions 16 capable of colliding with the limit stop 3112 are convexly provided on the front and rear sides of the back of the first main panel 1 a. When the stopper protrusion 16 of the first main panel 1a collides with the stopper 3112 of the front and rear fixing

side members

311a, 311b, the first main panel 1a cannot be pulled out any more, as shown in fig. 5.

The first foot rest 2a is connected with the movable frame 32, when the first main panel 1a slides back and forth, the movable frame 32 and the first foot rest 2a move together, so that the movable frame 32 and the first foot rest 2a are always supported at the bottom of the first main panel 1a, and the bearing strength is ensured.

In addition, the folding table can be further provided with a plurality of pulley pieces 8, pull rods 5, a bearing frame 6 and the like, so that the table top can be extended and contracted, and can be used as a trolley after being folded (see fig. 9). When the table is folded and packed, the two wheels 81 can be detached, placed in the cavity between the movable panel 1c and the foot rest and limited between the two limiting grooves 15 of the first main panel 1a and the second main panel 1b without shaking. The limiting groove 15 is concavely arranged at the bottom of the first main panel 1a and the second main panel 1b, and the shape and size are matched with those of the wheels, as shown in fig. 11. After the folding table is folded, the area of the whole table is only the area of one main panel, so that the packaging volume can be greatly reduced, the packaging and transportation cost can be greatly reduced, and meanwhile, the folding table is convenient to store and carry, as shown in fig. 10.

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to 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 retractable table top assembly for a folding table, comprising:

a first main panel, the back of which is provided with a first pedestal;

the second main panel can be butted with the first main panel, and the back of the second main panel is provided with a second pedestal;

the first base frame and the second base frame are connected through a pivoting device and can be folded around a pivoting shaft to link the first main panel and the second main panel to realize folding; the method is characterized in that:

the first base frame is a telescopic frame with a sliding rail device and comprises a fixed frame connected with a pin joint device and a movable frame arranged on the fixed frame in a sliding way, the first main panel is fixedly connected with the movable frame and can reciprocate relative to the fixed frame through the sliding rail device, the fixed frame is provided with a movable panel which can turn upwards or downwards relative to the fixed frame, and the movable panel is a foldable panel and can be selectively arranged between the first main panel and the second main panel or hidden below the first main panel.

2. A retractable table top assembly for a folding table as claimed in claim 1, wherein: the movable panel is connected to the middle beam in the fixed frame in a turnover mode and is provided with a first panel and a second panel which can be connected in a folded mode.

3. A retractable table top assembly for a folding table as claimed in claim 2, wherein: the fixed frame comprises a longitudinal front fixed boundary beam, a longitudinal rear fixed boundary beam, a transverse left fixed boundary beam and a transverse right fixed boundary beam, wherein the front fixed boundary beam and the rear fixed boundary beam are respectively connected with the front pivoting seat and the rear pivoting seat of the pivoting device, and the right fixed boundary beam is connected between the front pivoting seat and the rear pivoting seat; the movable frame comprises a longitudinal front movable boundary beam and a longitudinal rear movable boundary beam, and the front movable boundary beam and the rear movable boundary beam are respectively arranged on the front fixed boundary beam and the rear fixed boundary beam in a sliding manner;

the middle beam is a longitudinal beam connected between the left fixed side beam and the right fixed side beam.

4. A retractable table top assembly for a folding table as claimed in claim 3 wherein: the slide rail device comprises:

the front fixed edge beam and the rear fixed edge beam are both provided with fixed sliding rail grooves, and a plurality of rolling parts are rotatably arranged in the fixed sliding rail grooves;

the front movable edge beam and the rear movable edge beam are both provided with movable sliding rail grooves which are in sliding contact fit with the rolling surfaces of the excircle of the rolling element;

and the limiting structure is used for limiting the displacement of the braking sliding rail groove on the fixed sliding rail groove.

5. The retractable table top device of a folding table as claimed in claim 4, wherein: the limiting structure comprises a first main panel, a limiting structure is pulled out to the maximum extent, the limiting structure comprises a limiting stop which is convexly arranged on the lower side parts of the left ends of the front and rear fixed edge beams, and a limiting bulge which is convexly arranged on the front and rear sides of the back of the first main panel and can be collided with the limiting stop.

6. A retractable table top assembly for a folding table as claimed in claim 4, wherein: the rolling element is a roller, a bearing or a rolling shaft.

7. A retractable table top assembly for a folding table as claimed in claim 2, wherein: the first panel and the second panel are connected through a hinge; or the first panel and the second panel are of an integral structure connected through a flexible sheet.

8. A retractable table top assembly for a folding table as claimed in claim 2, wherein: and an anti-disengagement device which can combine the first panel and the second panel after being folded is also arranged between the first panel and the second panel.

9. A retractable table top assembly for a folding table as claimed in claim 8 wherein: the anti-disengagement device adopts a magnetic adsorption device, and particularly strong magnets which can be adsorbed mutually are respectively arranged in the first panel and the second panel.

10. A retractable table top assembly for a folding table as claimed in claim 1, wherein: the first main panel, the second main panel and the movable panel are hollow blow molding panels, grooves and lugs are formed on the butt joint surfaces of the movable panel and the first main panel and the second main panel at intervals, after the movable panel is in butt joint with the first main panel and the second main panel, the lugs on the movable panel are embedded with the grooves on the first main panel and the second main panel, and the grooves on the movable panel are embedded with the lugs on the first main panel and the second main panel.