CN113261768B

CN113261768B - Table and extension module and assembly method thereof

Info

Publication number: CN113261768B
Application number: CN202110485702.3A
Authority: CN
Inventors: 王江林
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2023-04-11
Anticipated expiration: 2041-04-30
Also published as: CN113261768A

Abstract

The invention discloses a desk and an extension module and an assembly method thereof, wherein the desk comprises an extension plate, a second main support beam and two auxiliary support beams, wherein the second main support beam and the two auxiliary support beams are fixedly connected or integrally formed; the extension plate is arranged on the second main supporting beam and the two auxiliary supporting beams through at least three connecting pieces, the at least three connecting pieces are respectively positioned on the second main supporting beam and the two auxiliary supporting beams, the top of each connecting piece is fixedly connected with the extension plate, the side walls of the at least three connecting pieces are respectively fixedly connected with the side wall of the second main supporting beam and the side walls of the two auxiliary supporting beams, a plurality of mounting positions are arranged between the connecting pieces and the side walls of the second main supporting beam and the side walls of the auxiliary supporting beams, and the plurality of mounting positions are positioned on different horizontal planes and vertical planes; the length of the table can be increased by the technical scheme, so that the size specification of the table top plate is more diversified, and the requirements of more size specifications are met; and the extension board and the desktop board of the desk can be ensured to be positioned at the same horizontal plane.

Description

Table, extension module thereof and assembling method

Technical Field

The invention relates to the technical field of office furniture, in particular to a desk, an extension module of the desk and an assembly method of the desk.

Background

In the process of business office and daily life, the desk is indispensable office equipment and life furniture.

The existing table is divided into an integral structure or an assembled structure; with the development of the e-commerce market, the assembled table is more widely used due to the high quality and low price and the great saving of the boxing amount.

However, the conventional sectional table has the following problems:

1) The assembled table is formed by assembling and splicing parts, so that the requirement on the matching precision of each part is high, and the stability of the whole assembled table is easily influenced because the parts are not matched in place in the actual assembling process;

2) The specification and the size of the assembled table are mostly the most universal specification and the size determined by manufacturers according to market research, but not specially made by customers according to the site and office requirements, namely the specification and the size of the assembled table are single and cannot meet the diversified office requirements of enterprises; therefore, the extension board for extending the length of the table is often arranged in the existing assembled table, but the extension board and the table top board of the table cannot be ensured to be positioned at the same horizontal plane;

3) The assembled table is mostly assembled at one time, namely after the assembly is finished, the assembled table cannot be disassembled or is extremely difficult to disassemble, which is obviously not beneficial to the removal of the assembled table which may happen later;

4) Even if the manufacturing precision of each part of the assembled desk meets the assembly requirement, the desk can be unbalanced due to the fact that the assembly of an assembler is not in place in a specific assembly process;

5) The conventional assembled table is not provided with a special wire arranging device which can be assembled on the table, namely the conventional assembled table is provided with a common wire arranging device in the market, the wire arranging device is mainly fixedly arranged on the table through bolts, and the structure of the assembled table is obviously damaged.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a table, an extension module thereof and an assembling method thereof, wherein the extension module is mainly used for installing an extension board on the table to extend the length of the entire table top board, so as to meet diversified requirements, and simultaneously, the extension board and the table top board of the table are at the same level.

In order to achieve the purpose, the invention adopts the following technical scheme:

an extension module of a table comprises an extension plate, a second main supporting beam and two auxiliary supporting beams, wherein the second main supporting beam and the two auxiliary supporting beams are fixedly connected or integrally formed, and the second main supporting beam is used for being fixedly connected with the table;

the extension plate is installed on second main tributary supporting beam and two vice supporting beam through at least three connecting piece, at least three connecting piece is located second main tributary supporting beam and two vice supporting beam respectively, the top and the extension plate fixed connection of connecting piece, the lateral wall of at least three connecting piece respectively with the lateral wall of second main tributary supporting beam and two vice supporting beam's lateral wall fixed connection, a plurality of mounted position have between the lateral wall of connecting piece and second main tributary supporting beam and vice supporting beam's the lateral wall, a plurality of mounted position are located horizontal plane and the vertical face of a plurality of differences.

Preferably, the plurality of mounting positions are located on an arc or an inclined straight line.

Preferably, the two secondary support beams are respectively located at the front side and the rear side of the second main support beam, the two secondary support beams are respectively perpendicular to the second main support beam, and a connecting piece is respectively installed on each of the two secondary support beams.

Preferably, the connecting piece comprises a second horizontal plate and a second vertical plate which are integrally formed, the second horizontal plate is provided with a first long hole in the front-back direction, and the second horizontal plate is fixedly connected with the extension plate through the matching of a screw and the first long hole;

and the second vertical plate is provided with an inclined second long hole and is fixedly connected with the second main supporting beam or the auxiliary supporting beam through the matching of a screw and the second long hole.

A table comprising an extension module of a table as described above.

Preferably, the table top comprises a table top plate, a table top frame, a lock tongue piece, a lock hole and a plurality of support frames;

the second main supporting beam is fixedly connected with the desktop rack, and the side wall of the extension plate is attached to the side wall of the desktop board;

the tabletop plate is slidably arranged on the tabletop frame; the lock tongue piece is arranged on the lower surface of the desktop plate, the lock hole is positioned on the desktop frame, and when the desktop plate slides to the tail end on the desktop frame, the lock tongue piece can extend into the lock hole and is matched with the lock hole to prevent the desktop plate from sliding back on the desktop frame.

Preferably, two symmetrically distributed connecting strips are also provided,

the table top frame comprises a first main supporting beam;

and one ends of the two connecting strips are fixedly connected with the front side wall and the rear side wall of the second main supporting beam respectively, and the other ends of the two connecting strips are fixedly connected with the front side wall and the rear side wall of the first main supporting beam respectively.

Preferably, one end of the second main support beam is provided with a front and a rear eighth protruding parts, and the two eighth protruding parts are respectively located on the front side wall and the rear side wall of the second main support beam;

one end of the first main supporting beam is provided with a front second groove and a rear second groove, and the two second grooves are respectively positioned on the front side wall and the rear side wall of the first main supporting beam;

the eighth bulge is in concave-convex fit with the second groove.

Preferably, the table is further provided with at least two supporting plates, each supporting plate comprises a first section of plate and a second section of plate, the first section of plate is fixedly mounted on the lower surface of the extension plate through at least two screws, and the second section of plate is located below the table top plate and is in contact with the table top plate.

The method for assembling the table comprises the following specific steps:

the method comprises the following steps: installing the lock tongue piece and the plurality of sliding blocks on the table top plate, fixedly connecting the table top frame with the two supporting frames, fixedly installing the extension plate on the second main supporting beam and the auxiliary supporting beam, and fixedly connecting the two connecting strips with the second main supporting beam;

step two: fixedly connecting the two connecting strips with the first main supporting beam;

step three: the sliding blocks on the desktop plate are respectively aligned with the notches of the first sliding grooves and then downwards, so that the desktop plate is slidably mounted on the desktop frame, and then the desktop plate is slid, so that the spring bolt piece extends into the locking hole, and the assembly of the desk and the extension module is completed.

The invention has the beneficial effects that: according to the invention, the length of the table can be increased by extending the modules, so that the size specification of the table top plate is more diversified, and the requirements of more size specifications are met; meanwhile, the extension board and the desktop board of the desk can be kept at the same horizontal plane.

Drawings

Fig. 1 is a first schematic structural diagram of a table according to an embodiment of the present invention;

FIG. 2 is a second schematic view of a table according to an embodiment of the present invention (with the table top omitted);

FIG. 3 is an exploded view of a table according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

fig. 5 is a partial enlarged view of fig. 3 at B;

FIG. 6 is a schematic structural view of the wire rack of the present invention;

FIG. 7 is a schematic view of the installation of the auxiliary beam of the present invention;

FIG. 8 is a schematic view of the installation of the baffle of the present invention;

FIG. 9 is a schematic view of the slider of the present invention;

fig. 10 is a first structural schematic diagram of the wire arranging device of the invention;

fig. 11 is a structural schematic diagram of a wire arranging device of the invention;

FIG. 12 is a schematic view of a structure of the buckle of the present invention

FIG. 13 is a second schematic view of the structure of the buckle of the present invention

FIG. 14 is a first table according to a second embodiment of the present invention;

fig. 15 is a second table according to a second embodiment of the present invention (with the table top and extension board omitted);

fig. 16 is an exploded view of a second table according to an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of an extension module according to a second embodiment of the present invention;

fig. 18 is a partial enlarged view at C of fig. 16;

FIG. 19 is a schematic structural diagram of a second connector according to an embodiment of the present invention;

FIG. 20 is a schematic view of the installation of the secondary tertiary deck and the secondary primary support beam according to an embodiment of the present invention.

Description of reference numerals: 10. a table top plate; 11. a desktop rack; 110. a first chute; 1100. a notch; 111. a first main support beam; 1110. a second groove; 1111. a fourth mounting hole; 112. a front side sill; 113. a rear side beam; 114. a center sill; 12. a support frame; 121. a second support beam; 1210. a first through hole; 1211. a third threaded hole; 1212. a third through hole; 1213. a fourth via hole; 120. a first support beam; 13. a latch member; 130. a handle portion; 131. a rotating shaft part; 132. a tongue locking portion; 133. an elastic member; 134. mounting a column; 14. a lock hole; 15. a slider; 150. a first upper boss; 151. a first lower boss; 16. a gasket; 17. a fixed block; 18. a first cover plate; 180. a second extension arm; 181. a third extension arm; 19. a second cover plate; 20. a third cover plate; 200. a sixth boss; 201. a positioning part; 202. a fifth extension arm; 203. a seventh boss; 21. an adjusting screw; 210. a support portion; 211. a threaded portion; 22. connecting blocks; 220. a first threaded hole; 221. a second through hole; 222. a second threaded hole; 223. a first extension arm; 224. a first boss; 225. a second upper boss; 23. an auxiliary beam; 24. a first screw; 25. a connecting plate; 250. a first gourd hole; 26. a baffle plate; 260. a second gourd hole; 27. an integration module; 28. a wire laying frame; 280. a wire laying board; 281. a profiled hole; 282. a through hole; 283. a first extension plate; 284. a second mounting hole; 285. a fifth mounting hole; 286. a third gourd hole; 287. a first mounting hole; 29. arranging a wire device; 290. a wire arranging base; 2900. a second boss portion; 2901. a third boss portion; 2902. a second extension plate; 2903. a second chute; 2904. a third chute; 291. a wire arranging cover; 2910. a first slider bar; 2911. a second slide bar; 292. a wire arranging channel; 30. an extension plate; 31. a second main support beam; 310. an eighth boss; 311. a third groove; 32. a secondary support beam; 33. a connecting strip; 34. a connecting member; 340. a first long hole; 341. a second long hole; 35. a support plate; 36. clamping a wire buckle; 360. mounting a plate; 361. a wire clamping plate; 362. a wire clamping hole; 3600. a fourth boss; 3601. an arc-shaped groove; 3602. a third extension portion; 3603. a third mounting hole; 3604. a fourth extension arm; 3605. and a fifth boss.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

as shown in fig. 1 to 3, a table for use in business office or daily life includes a table top 10, a table top frame 11, and a plurality of supporting frames 12 for supporting the table top frame 11 and contacting the ground, wherein the table top 10 is detachably mounted on the table top frame 11, and the table top frame 11 is detachably mounted on the plurality of supporting frames 12.

The desktop plate 10 is slidably arranged on the desktop frame 11;

the table top board is further provided with a lock tongue piece 13 and a lock hole 14 used for being matched with the lock tongue piece 13, the lock tongue piece 13 is movably installed on the lower surface of the table top board 10, the lock hole 14 is located on the table top frame 11, and when the table top board 10 slides to the tail end on the table top frame 11, the lock tongue piece 13 can extend into the lock hole 14 and is matched with the lock hole 14 to prevent the table top board 10 from sliding back on the table top frame 11.

It should be noted that the extreme end of the table top 10 sliding on the table top frame 11 means that the table top 10 slides on the table top frame 11 along a certain direction until the table top cannot slide forward, and at this time, the distances between the left and right ends of the table top frame 11 and the edges of the left and right sides of the table top 10 are substantially equal, and the distances between the front and rear ends of the table top frame 11 and the edges of the front and rear sides of the table top 10 are substantially equal.

Preferably, at least two sliding blocks 15 are fixedly connected to or integrally formed on the lower surface of the table top 10, at least two first sliding grooves 110 distributed in parallel are arranged on the table top frame 11, the first sliding grooves 110 are matched with the sliding blocks 15, so that the sliding blocks 15 can only reciprocate along the direction of the first sliding grooves 110, and when the sliding blocks 15 slide to the tail ends of the first sliding grooves 110, the locking tongue pieces 13 can extend into the locking holes 14 and are matched with the locking holes 14 to prevent the table top 10 from sliding back on the table top frame 11.

And in other embodiments, the lower surface of the table top 10 may further be provided with two sliding bars, the two sliding bars are respectively distributed on two opposite sides of the table top 10, and the sliding bars have a sufficient length to enable the table top 10 to obtain sufficient support; the slot may be in the form of a side slot, a dovetail slot, or the like that allows the table top 10 to move only in the direction of the first runner 110.

Therefore, when the desktop plate 10 is installed, the sliding block 15 is only required to be arranged in the first sliding groove 110, then the desktop plate 10 slides to a specified position, and then the installation of the desktop plate 10 can be completed through the locking mechanism, so that the installation of the desktop plate 10 is convenient, simple and rapid;

and the upper surface of the table top plate 10 is installed without screws, so that the integrity of the table top is ensured.

In this embodiment, the desktop frame 11 includes a first main supporting beam 111, and two front side beams 112 and two rear side beams 113 integrally formed with or fixedly connected to the first main supporting beam 111, the front side beams 112 and the rear side beams 113 are distributed in parallel and are perpendicular to the first main supporting beam 111, the two front side beams 112 are respectively close to the left and right ends of the first main supporting beam 111, the two rear side beams 113 are respectively close to the left and right ends of the first main supporting beam 111, and the desktop board 10 is detachably mounted on the two front side beams 112 and the two rear side beams 113; the two support frames 12 are respectively fixedly connected with the left end and the right end of the first main support beam 111;

and four first sliding chutes 110 are provided in total, and the four first sliding chutes 110 are respectively distributed on two front side beams 112 and two rear side beams 113;

and four sliding blocks 15 corresponding to the first sliding grooves 110 one by one are fixedly connected to the table top plate 10.

Therefore, the table top 10 can be movably mounted on the table top 10 by the cooperation of the first sliding slot 110 and the sliding block 15, and has four supporting points, so that the table top 10 can be supported sufficiently to ensure the stability of the table top 10.

In this embodiment, as shown in fig. 9, at least one first upper protruding portion 150 and at least one lower protruding portion are respectively disposed on the left and right side walls of the slider 15, and the first upper protruding portion 150 is located above the first lower protruding portion 151;

the upper portions of the front side edge beam 112 and the rear side edge beam 113 are both flat plates, the first sliding groove 110 is located on the flat plates, the first sliding groove 110 is a long hole, the left side wall and the right side wall of the first sliding groove 110 are respectively matched with the left side wall and the right side wall of the slider 15 to limit the freedom degrees of the slider 15 in the left direction and the right direction, and the upper surface and the lower surface of the flat plates are respectively matched with the lower surface of the first upper protruding portion 150 and the upper surface of the first lower protruding portion 151 to limit the freedom degrees of the slider 15 in the up direction and the down direction; thus, the slider 15 can move only in the forward and backward directions, i.e., along the first chute 110.

Preferably, a gap 1100 is respectively disposed on the left and right side walls of the first sliding slot 110, and the gap 1100 can accommodate the first protruding portion 224 and prevent the first upper protruding portion 150 from passing through from top to bottom; this arrangement facilitates placement of the slide 15 within the first runner 110.

Further preferably, a plurality of gaskets 16 are further provided, the gaskets 16 are positioned between the sliding blocks 15 and the table top 10, and the sliding blocks 15 are fixedly installed on the lower surface of the table top 10 through screws.

In this embodiment, the table top frame 11 further includes a middle beam 114, the middle beam 114 is located between the two front side beams 112, and the locking hole 14 is located on the upper surface of the middle beam 114 and at the front end of the middle beam 114;

the fixing block 17 is further arranged, the fixing block 17 is fixedly installed on the lower surface of the desktop board 10, the fixing block 17 is located in front of the middle beam 114, the locking tongue piece 13 is rotatably installed on the fixing block 17, and in the process that the desktop board 10 slides to a specified position on the desktop frame 11, the locking tongue piece 13 can enter the locking hole 14 from bottom to top to prevent the desktop board 10 from sliding on the desktop frame 11.

Further preferably, the rear side surface of the latch piece 13 is an inclined surface, and the distance between the rear side surface of the latch piece 13 and the rotating shaft portion 131 gradually increases from top to bottom. With this arrangement, the middle beam 114 can push the rear end of the latch 13 to rotate from top to bottom during the process of sliding the table top 10 to a predetermined position on the table top frame 11.

Further preferably, as shown in fig. 4, the latch member 13 includes a handle portion 130, a rotating shaft portion 131 and a latch tongue portion 132, which are integrally formed, the rotating shaft is located between the handle portion 130 and the latch tongue portion 132, the latch member 13 is rotatably mounted on the fixed block 17 through the rotating shaft portion 131, and a rear side surface of the latch tongue portion 132 is an inclined surface;

an elastic member 133 is also provided, the elastic member 133 is disposed between the table top 10 and the latch member 13, and the elastic member 133 can force the latch 132 to rotate toward the table top 10 or have a tendency to rotate toward the table top 10.

Thus, after the middle beam 114 pushes the locking tongue portion 132 to rotate from top to bottom, the locking tongue portion 132 is located below the middle beam 114, and when the locking tongue portion 132 moves to the position of the locking hole 14, the locking tongue portion 132 rotates upward under the action of the elastic member 133 to enter the locking hole 14 and abut against the front side wall of the locking hole 14, thereby completing the locking of the table top 10.

The resilient member 133 is preferably a spring, and the latch 132 is forced to rotate towards the table top 10 or tends to rotate towards the table top 10 in two ways, one is to push the handle 130 to rotate away from the table top 10, and the other is to pull the latch to rotate towards the table top 10; in this embodiment, the resilient member 133 is configured to urge the handle portion 130 to rotate away from the table top 10; specifically, the handle portion 130 is provided with a mounting post 134, the spring is sleeved on the mounting post 134, the upper end of the spring abuts against the table top 10, and the lower end of the spring abuts against the handle portion 130.

It should be noted that in the present embodiment, the locking tongue 13 and the locking hole 14 are matched to actually limit the sliding freedom degree of the table top 10 in one direction, that is, when the table top 10 slides to a specified position on the table top frame 11, the table top 10 can also continue to slide in the same direction, and therefore, other structures are provided in the present embodiment to limit the table top 10 to continue to slide; if the sliding block 15 is positioned at the end of the first sliding chute 110; as also shown, the center beam 114 abuts the anchor 17.

The height of the supporting frame 12 can be adjusted to adjust the height of the table top 10 from the ground, wherein the specific structure of the supporting frame 12 with adjustable height can refer to the related structure in the publication No. CN212938647U, CN112617399A, CN112617401A, CN212754727U, CN 212630245U. Generally, the supporting frame 12 may be a telescopic rod, i.e. at least 3 supporting frames 12 are required to support the table top 10, or as shown in fig. 1 to 3 in this embodiment, the number of the supporting frames 12 is 2 and they are respectively located at the left and right sides of the table top 10, the supporting frame 12 includes a horizontal second supporting beam 121 and at least one vertical first supporting beam 120, the top of the first supporting beam 120 is detachably connected to the table top frame 11, and the bottom of the first supporting beam 120 is fixedly connected to or integrally formed with the second supporting beam 121.

In this embodiment, in order to facilitate the matching of the components, the first support beam 120, the second support beam 121, the first main support beam 111, the front side beam 112, and the rear side beam 113 are square tubes; further preferably, a plurality of first cover plates 18, second cover plates 19 and third cover plates 20 are further provided, the first cover plates 18 are detachably mounted at two ends of the second support beam 121 through fastening structures, the second cover plates 19 are detachably mounted at the outer ends of the front side edge beam 112 and the rear side wall beam through fastening structures, and the third cover plates 20 are detachably mounted at two ends of the first main support beam 111 through fastening structures.

Of course, in other embodiments, a round tube is also possible.

In the present embodiment, as shown in fig. 3 and 5, both ends of the second support beam 121 are mounted with an adjusting screw 21 for contacting with the ground, and the adjusting screw 21 can adjust the height of the second support beam 121 from the ground by rotation; thus, due to the special structure of the supporting frame 12, the two ends of the second supporting beam 121 are suspended, so that people can conveniently rotate the adjusting screws 21 from the upper parts of the two ends of the second supporting beam 121, thereby adjusting the level of the table top 10 and enabling the table to adapt to uneven ground.

It is further preferable that the adjusting screw 21 includes a support portion 210 for contacting with the ground and a threaded portion 211 for being screwed with the second support beam 121, a bottom of the threaded portion 211 is fixedly connected or integrally formed with a middle portion of the support portion 210, the support portion 210 is located below the second support beam 121, and a horizontal projection area of the support portion 210 is larger than a horizontal projection area of the threaded portion 211.

Preferably, the connecting blocks 22 are fixedly mounted at both ends of the second supporting beam 121, the connecting blocks 22 are located in the second supporting beam 121, and a first threaded hole 220 is formed in the middle of each connecting block 22; two first through holes 1210 are formed at the bottom of the second support beam 121, and the two first through holes 1210 are respectively located at two ends of the second support beam 121; the adjusting screw 21 passes through the first through hole 1210 and then is in threaded engagement with the first threaded hole 220, i.e. the threaded portion 211 is in threaded engagement with the first threaded hole 220.

Preferably, two second through holes 221 and a second threaded hole 222 are further formed in the connecting block 22, two third threaded holes 1211 and four third through holes 1212 which are symmetrically distributed at two ends of the second supporting beam 121 are formed in the bottom of the second supporting beam 121, the second through holes 221 and the third threaded holes 1211 are matched to enable screws to fixedly mount the connecting block 22 on the second supporting beam 121 from top to bottom, and the third through holes 1212 and the second threaded holes 222 are matched to enable the screws to fix the connecting block 22 on the second supporting beam 121 from bottom to top. This is because almost the entire weight of the table acts between the connection block 22 and the second support beam 121 in the present embodiment, and thus the connection block 22 is more stably mounted on the second support beam 121 in both the top-down and bottom-up directions to prevent the connection block 22 from being detached from the second support beam 121.

Preferably, the left and right sidewalls of the connecting block 22 extend downward and outward to form two first extension arms 223, the outer surface of each first extension arm 223 is provided with a first protrusion 224, the first protrusion 224 is located at the bottom of each first extension arm 223, the bottom of the second support beam 121 is provided with four fourth through holes 1213 symmetrically distributed at two ends of the second support beam 121, after the first extension arms 223 pass through the fourth through holes 1213 from top to bottom, the inner sidewalls of the fourth through holes 1213 abut against the outer surfaces of the first extension arms 223 and prevent the first extension arms 223 from moving outward, and the first protrusions 224 are located below the second support beam 121. This arrangement enables the connection block 22 to be preliminarily mounted on the second support beam 121 by the engagement of the first extension arm 223 with the fourth through hole 1213.

In this embodiment, the first cover plate 18 is an L-shaped cover plate, the horizontal portion of the first cover plate 18 is located above the connecting block 22, and the two first cover plates 18 and the second supporting beam 121 cooperate to form a complete rectangular parallelepiped. In this way, when the balance degree of the whole table needs to be adjusted, the first cover plate 18 can be opened, and when the adjustment is not needed, the first cover plate 18 is closed, so that the adjusting screw 21 is not influenced by the outside.

Preferably, the left and right side walls of the connecting block 22 are respectively provided with a second upper protruding part 225; the left second upper protruding part 225 and the right second upper protruding part 225, the left side wall and the right side wall of the connecting block 22 and the lower inner side wall of the second supporting beam 121 are matched to form a left first groove and a right first groove;

first apron 18 inwards extends and forms about two second extension arms 180 and controls two third extension arms 181, more specifically says, two second extension arms 180 about the horizontal part of first apron 18 inwards extends and forms, two third extension arms 181 about the vertical part of first apron 18 inwards extends and forms, two second extension arms 180 offset and have the trend of upward movement with the last inside wall of second supporting beam 121 about, two third extension arms 181 about with about two first recess cooperations and have the trend of right and left movement respectively.

It should be noted here that the inward extension of the first cover plate 18 means: when the first cover 18 is mounted on the second support beam 121, the first cover 18 extends toward the first support beam 120; and

the two third extension arms 181 cooperate with the left and right first grooves to mean: the third extension arm 181 abuts against the lower side wall of the second upper protrusion 225, the left side wall of the connection block 22, and the lower inner side wall of the second support beam 121; and

the adjusting screw 21, the first cover plate 18 and the connecting block 22 in this embodiment may also be used for a non-assembly type table.

In this embodiment, as shown in fig. 18, two sixth protruding portions 200 and four positioning portions 201 are disposed on the third cover plate 20, two second grooves 1110 for being engaged with the sixth protruding portions 200 are disposed at both left and right ends of the first main supporting beam 111, so as to limit the degrees of freedom of the third cover plate 20 in the up-down two directions, the four positioning portions 201 are respectively used for abutting against two inner side walls of the first main supporting beam 111 in the front-back two directions, so as to limit the degrees of freedom of the third cover plate 20 in the front-back two directions, and the third cover plate 20 abuts against the first main supporting beam 111, so as to limit the degree of freedom of the third cover plate 20 in the inward direction; further preferably, two elastic fifth extension arms 202 are further disposed on the third cover plate 20, a seventh protrusion 203 is disposed at a terminal of each fifth extension arm 202, at least one fourth mounting hole 1111 is disposed on each of the front side wall and the rear side wall of the first main support beam 111, and when the third cover plate 20 abuts against the first main support beam 111, the seventh protrusion 203 can be inserted into the fourth mounting hole 1111, so as to limit the outward degree of freedom of the third cover plate 20.

It should be noted that the fourth mounting hole 1111 can also be used for mounting the extension module, so that, in order to make the extension module have enough support to ensure the stability of the mounting of the extension module, the fourth mounting hole 1111 is located at a longer distance from the left end or the right end of the first main supporting beam 111, and therefore, the fifth extension arm 202 is made of rubber and is mounted on the third cover plate 20 through a snap structure.

In this embodiment, as shown in fig. 3 and 7, the desktop rack 11 further includes an auxiliary beam 23, the auxiliary beam 23 is parallel to the supporting beam, and the auxiliary beam 23 is detachably mounted on the left and right rear side beams 113;

specifically, a first screw 24 is installed on the lower surface of the rear side frame 113,

two connecting plates 25 about still being equipped with, about two connecting plates 25 respectively with auxiliary beam 23 control both ends fixed connection, connecting plate 25 perpendicular to auxiliary beam 23 is equipped with first calabash hole 250 on the connecting plate 25, first screw 24 can be vertically through the macropore of first calabash hole 250 and can not pass through the aperture of first calabash hole 250.

Thus, when the auxiliary beam 23 is installed, the auxiliary beam 23 and the two connecting plates 25 are taken as a whole, the large holes of the two first hoist holes 250 are respectively sleeved on the two first screws 24 from bottom to top, and then the auxiliary beam 23 is translated to enable the small holes of the two first hoist holes 250 to be respectively sleeved on the two first screws 24; thereby completing the installation of the auxiliary beam 23.

In this embodiment, as shown in fig. 3 and 8, a vertical baffle 26 is further provided, the top of the baffle 26 extends forward to form a third extending plate, the left and right ends of the third extending plate are respectively provided with a second gourd-shaped hole 260, and the first screw 24 can vertically pass through the large hole of the second gourd-shaped hole 260 and the small hole which cannot pass through the second gourd-shaped hole 260; thus, when the baffle 26 is installed, the large holes of the two second gourd holes 260 are respectively sleeved on the two first screws 24 from bottom to top, and then the auxiliary beam 23 is translated to enable the small holes of the two second gourd holes 260 to be respectively sleeved on the two first screws 24; thereby completing the installation of the baffle 26.

In this embodiment, as shown in fig. 3 and fig. 6, an integrated module 27 and a wire rack 28 are further provided, the integrated module 27 is provided with a port for plugging a network cable, a port for plugging a telephone line, and an interface for plugging a power line, the integrated module 27 is mounted on the middle beam 114 and located behind the supporting beam, and the wire rack 28 is detachably mounted on the left and right rear side beams 113 and located behind the integrated module 27; preferably, the upper surface of the wire-holding frame 28 is provided with two third gourd holes 286, the two third gourd holes 286 are respectively located at the left end and the right end of the wire-holding frame 28, and the first screw 24 can vertically pass through a large hole of the third gourd hole 286 and a small hole which cannot pass through the third gourd hole 286; thus, when the wire-laying frame 28 is installed, the large holes of the two third gourd holes 286 are respectively sleeved on the two first screws 24 from bottom to top, and then the auxiliary beam 23 is translated to enable the small holes of the two third gourd holes 286 to be respectively sleeved on the two first screws 24; thereby completing the installation of the wire rack 28.

It should be noted that, in the present embodiment, the auxiliary beam 23, the baffle 26 and the wire rack 28 are mounted by using the first screw 24, and when the auxiliary beam 23, the baffle 26 and the wire rack 28 are mounted on the first screw 24, the first screw 24 presses the wire rack 28, the baffle 26 and the connecting plate 25 against the lower surface of the rear side frame 113.

In the embodiment, in order to conveniently arrange power lines, telephone lines, network cables and the like on the wire rack 28, the wire arranging device 29 and the wire clamping buckle 36 are detachably mounted on the wire rack 28.

As shown in fig. 3, 6, 10 and 11, the wire organizer 29 includes a wire organizing seat 290 and a wire organizing cover 291, the wire organizing seat 290 is detachably mounted on the wire rack 28, the wire organizing seat 290 is provided with a plurality of lower semicircular grooves distributed in parallel, the wire organizing cover 291 is slidably mounted on the wire organizing seat 290, the wire organizing cover 291 is provided with a plurality of upper semicircular grooves distributed in parallel, the upper semicircular grooves and the lower semicircular grooves correspond to each other one by one, and when the wire organizing cover 291 slides to form the wire organizing channel 292 by the cooperation of the upper semicircular grooves and the lower semicircular grooves, the wire organizing cover 291 can be fixedly connected with the wire organizing seat 290.

In this embodiment, the wire shelf 28 includes a wire shelf 280, and the wire management base 290 is detachably mounted on the wire shelf 280.

Further preferably, at least two special-shaped holes 281 and at least one through hole 282 are formed in the wire placing plate 280, the special-shaped holes 281 include a large hole and a small hole which are connected with each other, the small hole is located between the large hole and the through hole 282, two second protrusions 2900 and a third protrusion 2901 are arranged at the bottom of the wire arranging seat 290, the second protrusions 2900 include a first clamping portion and a second clamping portion, the first clamping portion is located between the second clamping portion and the wire arranging seat 290, the large hole can accommodate the first clamping portion and the second clamping portion to vertically pass through, and the small hole can accommodate the first clamping portion to vertically pass through and prevent the second clamping portion from vertically passing through;

when the second protrusion 2900 slides from the large hole to the small hole and the second protrusion 2900 abuts against the inner sidewall of the small hole, the third protrusion 2901 is located in the through hole 282 and the third protrusion 2901 abuts against the inner sidewall of the through hole 282 close to the small hole, the upper surface of the line laying plate 280 contacts with the bottom of the line arranging seat 290, and the lower surface of the line laying plate 280 abuts against the second positioning portion.

In this way, the degree of freedom of the wire organizer 290 in five directions, i.e., upward, downward, forward, backward, and rightward, can be restricted by the engagement of the shaped hole 281 and the second projection 2900, and the degree of freedom of the wire organizer 290 in one direction, i.e., leftward, can be restricted by the engagement of the third projection 2901 and the wire through hole 282, so that the wire organizer 290 can be mounted on the wire shelf 280.

More preferably, the inner sidewall of the wire through hole 282 extends horizontally inwards to form a first extending plate 283 with elasticity, the sidewall of the wire arranging base 290 extends horizontally to form a second extending plate 2902, the third protruding part 2901 is located on the second extending part, and the sidewall of the third protruding part 2901 abuts against the sidewall of the first extending plate 283; this is because, during the initial installation of the wire holder 290, the third protrusion 2901 is located above the first extension plate 283, and the bottom of the third protrusion 2901 exerts a downward pressing force on the first extension plate 283, then, during the movement of the wire holder 290 toward the wire through hole 282, the magnitude of downward deformation of the outer end of the first extension plate 283 is increased until the outer end of the first extension plate 283 and the third protrusion 2901 are separated instantaneously, and then, the first extension plate 283 rebounds to press the side wall of the third protrusion 2901 against the side wall of the first extension plate 283.

In this embodiment, the front and rear side walls of the wire arranging seat 290 are respectively provided with a second sliding groove 2903, the front and rear inner side walls of the wire arranging cover 291 are respectively provided with a first sliding bar 2910, and the first sliding bar 2910 and the second sliding groove 2903 are matched to make the wire arranging cover 291 slidably mounted on the wire arranging seat 290.

More preferably, both the upper and lower sidewalls of the second chute 2903 are inclined surfaces. This is so set up because: because the wire arranging passage 292 formed by the matching of the upper semicircular groove and the lower semicircular groove is also provided with the wire clamps for fixing the power line, the telephone line and the network cable, if the wire arranging cover 291 is installed in a plane sliding manner, the wire clamps can continuously rub against the power line, the telephone line or the network cable, and further damage to the power line, the telephone line and the network cable is caused, therefore, the situation is avoided in a downward inclined manner, wherein when the wire arranging cover 291 is completely attached to the wire arranging base 290, the wire arranging passage 292 is formed by the matching of the upper semicircular groove and the lower semicircular groove.

In this embodiment, the wire arranging cover 291 is provided with a second sliding bar 2911, the wire arranging seat 290 is provided with a third sliding groove 2904 for matching with the second sliding bar 2911, the third sliding groove 2904 is a tapered groove, and when the wire arranging cover 291 slides to the upper semicircular groove and the lower semicircular groove to match with each other to form the wire arranging channel 292, one end of the second sliding bar 2911 is tightly fitted with one end of the third sliding groove 2904; thereby securely mounting the wire dress cover 291 to the wire dress seat 290.

As shown in fig. 3, 6, 12 and 13, the wire clip 36 includes a mounting plate 360 and a wire clip 361 which are integrally formed, the wire clip 361 is an S-shaped plate and is located above the mounting plate 360, one end of the wire clip 361 is connected to the mounting plate 360, and the wire clip 361 and the mounting plate 360 cooperate to form a wire clip hole 362;

breaking the line clamping plate 361 can make the middle part of the line clamping plate 361 far away from the mounting plate 360 to open the line clamping hole 362; releasing the line clamping plate 361 enables the middle part of the line clamping plate to be close to the mounting plate 360 to close the line clamping hole 362;

the mounting plate 360 is detachably mounted on the line shelf 280.

It should be noted that the wire-locking hole 362 may be formed by the middle portion of the wire-locking plate 361 abutting against the mounting plate 360, or the middle portion of the wire-locking plate 361 may be spaced from the mounting plate 360 by a certain distance but not enough to allow the locked wire to pass through;

the S-shaped plate is selected for the line clamping plate 361 in this embodiment, because the other end of the line clamping plate 361 can be used as a handle, the line clamping plate 361 can be easily broken.

Further preferably, the mounting plate 360 is slidably mounted on the line shelf 280, and when the mounting plate 360 slides to the extreme end on the line shelf 280, the mounting plate 360 can be fixedly connected with the line shelf 280.

In this embodiment, the mounting plate 360 is provided with two cylindrical fourth protruding portions 3600, the two fourth protruding portions 3600 are respectively located at the left half part and the right half part of the lower surface of the mounting plate 360, and an arc-shaped groove 3601 is arranged on the side wall of the fourth protruding portion 3600;

at least two first mounting holes 287 used for being matched with the fourth boss 3600 are arranged on the wire placing plate 280, the diameter of each first mounting hole 287 is larger than that of the corresponding fourth boss 3600, the curvature of each first mounting hole 287 is not smaller than that of each arc-shaped groove 3601, and when the mounting plate 360 slides on the wire placing plate 280 to the tail end, the arc-shaped grooves 3601 are in tight fit with the wire placing plate 280.

In this way, the degree of freedom of the wire trap 36 in three directions, i.e., upward, downward, and leftward, can be restricted by the engagement of the fourth boss 3600 and the first mounting hole 287.

In this embodiment, the left and right side walls of the mounting plate 360 respectively extend to the left and right to form third extending portions 3602, the third extending portions 3602 are L-shaped plates, and the vertical portions of the third extending portions 3602 face downward;

at least two second mounting holes 284 used for being matched with a third extension part 3602 are arranged on the wire laying plate 280, the second mounting holes 284 are rectangular holes, and the width of the third extension part 3602 in the front-back direction is equal to the width of the second mounting holes 284 in the front-back direction.

Thus, the degree of freedom of the buckle 36 in both forward and backward directions can be restricted by the cooperation of the second mounting hole 284 and the third extension 3602; and the third extension 3602 can move left and right on the second mounting hole 284.

In this embodiment, the mounting plate 360 is provided with a third mounting hole 3603, a fourth elastic extension arm 3604 is provided on a left side wall or a right side wall of the third mounting hole 3603, a fifth protrusion 3605 is provided at a terminal of the fourth extension arm 3604, and the fifth protrusion 3605 is located on a lower surface of the fourth extension arm 3604;

the wire resting plate 280 is provided with at least one fifth mounting hole 285 for matching with the fifth boss 3605, and the fifth mounting hole 285 is located between the two first mounting holes 287.

Thus, the fourth extension arm 3604 has certain elasticity, so that the fifth protrusion 3605 can be finally clamped into the third mounting hole 3603, and the degree of freedom of the wire clip 36 to the right is further limited.

That is, in the installation process of the wire clip 36, the installation of the wire clip 36 can be completed only by aligning the fourth boss 3600 with the first installation hole 287 and aligning the third extension 3602 with the second installation hole 284 and then sliding the fifth boss 3605 leftwards or rightwards to clip the fifth boss 3605 into the third installation hole 3603, which is convenient and simple;

in the process of detaching the wire clip 36, the wire clip 36 can be detached from the wire-laying plate 280 only by ejecting the fifth protruding portion 3605 out of the fifth mounting hole 285.

In this embodiment, the assembly method of the table is as follows:

the method comprises the following steps: the bolt piece 13 and a plurality of sliding blocks 15 are arranged on the desktop plate 10, and the desktop frame 11 is fixedly connected with the two supporting frames 12;

step two: the tabletop plate 10 is turned over to enable the sliding blocks 15 to be positioned below the tabletop plate 10, and then the sliding blocks 15 are respectively aligned to the notches 1100 of the first sliding grooves 110 and then are downward, so that the tabletop plate 10 is slidably mounted on the tabletop frame 11;

step three: the table top 10 is slid such that the locking tongue 13 is inserted into the locking hole 14, thereby completing the assembly of the table.

Example two

The difference between this embodiment and the first embodiment is: as shown in fig. 14 to 16, in order to meet the requirements of different sizes, the table in this embodiment is further provided with an extension module, which is installed on the first main support beam 111, and of course, in this embodiment, the third cover plate 20 at one end of the first main support beam 111 needs to be removed to install the extension module.

In this embodiment, as shown in fig. 17, the extension module includes an extension board 30 and an extension frame, the extension frame includes a second main supporting beam 31 and two secondary supporting beams 32, the extension board 30 is mounted on the second main supporting beam 31 and the two secondary supporting beams 32, the second main supporting beam 31 and the two secondary supporting beams 32 are welded and fixed, the two secondary supporting beams 32 are respectively located at the front and rear sides of the second main supporting beam 31 and are respectively perpendicular to the second main supporting beam 31, the second main supporting beam 31 is fixedly connected to the first main supporting beam 111 and makes the side wall of the extension board 30 fit with the side wall of the table top 10; and forming a complete rectangular panel.

Therefore, when the table needs to be lengthened, the second main supporting beam 31 and the first main supporting beam 111 are only needed to be butted, and then the extension plate 30 is arranged on the second main supporting beam 31 and the auxiliary supporting beam 32, so that the table is very convenient and simple; in addition, when the desk does not need to be extended, the extension modules can be stored uniformly to prevent the desk from being lost, and meanwhile, the desk can be used independently.

In this embodiment, the extension module further includes two symmetrically distributed connecting bars 33, one ends of the two connecting bars 33 are respectively and fixedly connected to the front and rear sidewalls of the second main supporting beam 31, and the other ends of the two connecting bars 33 are respectively and fixedly connected to the front and rear sidewalls of the first main supporting beam 111; further preferably, the connecting bar 33 includes a first horizontal plate and a first vertical plate which are integrally formed, the left and right ends of the first horizontal plate are respectively fixedly connected with the upper side wall of the second main supporting beam 31 and the lower side wall of the first main supporting beam 111 through screws, the left ends of the two first vertical plates are respectively fixedly connected with the left side wall and the right side wall of the second main supporting beam 31 through screws, and the right ends of the two first vertical plates are respectively fixedly connected with the left side wall and the right side wall of the first main supporting beam 111 through screws; this can further ensure the stability of the coupling of the secondary main support beam 31 and the primary main support beam 111.

It is worth to be noted here that the right ends of the two first vertical plates are fixedly connected with the first main support beam 111 through the cooperation of the screws and the fourth mounting holes 1111.

In this embodiment, as shown in fig. 20, one end of the second main support beam 31 is provided with two front and back eighth protrusions 310, the two eighth protrusions 310 are respectively located on the front side wall and the back side wall of the second main support beam 31, and the eighth protrusions 310 are in concave-convex fit with the second grooves 1110; so set up, both can make things convenient for preliminary location between second main supporting beam 31 and the first main supporting beam 111, can further guarantee the stability of second main supporting beam 31 and the first main supporting beam 111 connection again.

Further preferably, the other end of the second main supporting beam 31 is provided with two front and back third recessed grooves 311, the two third recessed grooves 311 are respectively located on the front side wall and the back side wall of the second main supporting beam 31, and the third recessed grooves 311 may be used for matching with the sixth protruding part 200 of the third cover plate 20, or used for matching with the eighth protruding part 310 on the other second main supporting beam 31; i.e. when the length of one extension module still does not meet the requirements, the installation of another extension module can be continued.

In this embodiment, the extension plate 30 is mounted on the second main support beam 31 and the two secondary support beams 32 through at least three connecting members 34, the at least three connecting members 34 are respectively located on the second main support beam 31 and the two secondary support beams 32, the top of the connecting member 34 is fixedly connected with the extension plate 30, the side walls of the at least three connecting members 34 are respectively fixedly connected with the side walls of the second main support beam 31 and the side walls of the two secondary support beams 32, and a plurality of mounting positions are arranged between the connecting members 34 and the side walls of the second main support beam 31 and the side walls of the secondary support beams 32, and the plurality of mounting positions are located on a plurality of different horizontal planes and vertical planes; further preferably, the plurality of mounting positions are located on an arc or an inclined straight line.

Still more preferably, as shown in fig. 19, the second horizontal plate is provided with a first long hole 340 in the front-back direction, and the second horizontal plate is fixedly connected with the table top 10 by the cooperation of the screw and the first long hole 340;

an inclined second long hole 341 is formed in the second vertical plate, and the second vertical plate is fixedly connected with the outer end of the second main supporting beam 31 or the outer end of the auxiliary supporting beam 32 through the matching of a screw and the second long hole 341; by such arrangement, the levelness of the extension plate 30 can be adjusted by the matching of the adjusting screw 21 and the first long hole 340 and the screw and the second long hole 341, so as to finally achieve the degree that the extension plate 30 and the table top 10 are at the same horizontal plane.

In this embodiment, at least two supporting plates 35 are further provided, the supporting plates 35 are fixedly mounted on the lower surface of the extension plate 30 by at least two screws, the supporting plates 35 are located on one side of the extension plate 30 where the table top 10 is attached, and the supporting plates 35 partially extend out of the extension plate 30; thus, when the extension board 30 is mounted on the table by the abutting joint of the first main support beam 111 and the second main support beam 31, the portion of the support plate 35 extending out of the extension board 30 is located under the table top 10 and contacts with the lower surface of the table top 10, so that the extension board 30 has at least two support points where the support plate 35 contacts with the table top 10 in addition to the one support point connecting the second main support beam 31 and the first main support beam 111, thereby ensuring the stability of the extension board 30.

In this embodiment, the method of installing the extension module on the assembled desk includes:

the method comprises the following steps: fixedly mounting the extension board 30 on the second main support beam 31 and the secondary support beam 32, and fixedly connecting the two connection bars 33 with the second main support beam 31;

step two: the handle 130 is broken so that the latch piece 13 is moved out of the locking hole 14, and then the table top 10 is slid and the table top 10 is removed from the table top frame 11, and the third cover plate 20 at the upper end of the first main supporting beam 111 is removed;

step three: fixedly connecting the two connecting bars 33 with the first main supporting beam 111;

step four: the sliding blocks 15 on the desktop board 10 are aligned with the notches 1100 of the first sliding grooves 110 and then move downward, so that the desktop board 10 is slidably mounted on the desktop frame 11, and then the desktop board 10 is slid, so that the locking tongue members 13 extend into the locking holes 14, thereby completing the assembly of the desk and the extension module.

In this embodiment, the method of installing the extension module on the unassembled desk includes:

the method comprises the following steps: installing a bolt piece 13 and a plurality of sliding blocks 15 on the table top board 10, fixedly connecting the table top frame 11 with the two supporting frames 12, fixedly installing an extension plate 30 on a second main supporting beam 31 and a secondary supporting beam 32, and fixedly connecting two connecting strips 33 with the second main supporting beam 31;

step two: fixedly connecting the two connecting bars 33 with the first main supporting beam 111;

step three: the sliding blocks 15 on the desktop board 10 are aligned with the notches 1100 of the first sliding grooves 110 and then move downward, so that the desktop board 10 is slidably mounted on the desktop frame 11, and then the desktop board 10 is slid, so that the locking tongue members 13 extend into the locking holes 14, thereby completing the assembly of the desk and the extension module.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. 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. An extension module of a table, characterized by comprising an extension plate (30), a second main support beam (31) and two secondary support beams (32), wherein the second main support beam (31) and the two secondary support beams (32) are fixedly connected or integrally formed, and the second main support beam (31) is used for being fixedly connected with the table;

the extension plate (30) is mounted on a second main supporting beam (31) and two auxiliary supporting beams (32) through at least three connecting pieces (34), the at least three connecting pieces (34) are respectively located on the second main supporting beam (31) and the two auxiliary supporting beams (32), the tops of the connecting pieces are fixedly connected with the extension plate, the side walls of the at least three connecting pieces are respectively fixedly connected with the side walls of the second main supporting beam (31) and the two auxiliary supporting beams (32), a plurality of mounting positions are arranged between the connecting pieces (34) and the side walls of the second main supporting beam (31) and the auxiliary supporting beams (32), and the mounting positions are located on different horizontal planes and vertical planes; the installation positions are positioned on an arc line or an inclined straight line;

the connecting piece (34) comprises a second horizontal plate and a second vertical plate which are integrally formed, wherein the second horizontal plate is provided with a first long hole (340) in the front-back direction, and the second horizontal plate is fixedly connected with the extension plate (30) through the matching of a screw and the first long hole (340); an inclined second long hole (341) is formed in the second vertical plate, and the second vertical plate is fixedly connected with the outer end of the second main supporting beam (31) or the auxiliary supporting beam (32) through the matching of a screw and the second long hole (341);

when the levelness of the extension plate is adjusted: the levelness of the extension plate (30) is adjusted through the matching of the adjusting screw and the first long hole (340) and the matching of the screw and the second long hole (341), so that the extension plate (30) and the table top plate (10) of the table are at the same level.

2. An extension module of a table according to claim 1, wherein said two secondary support beams (32) are respectively located at the front and rear sides of the second main support beam (31), said two secondary support beams (32) are respectively perpendicular to the second main support beam (31), and said two secondary support beams (32) are respectively mounted with a connecting member (34).

3. A table characterised by comprising an extension module of a table according to any one of claims 1-2.

4. A table according to claim 3, further comprising a table top (10), a table top frame (11), a latch member (13), a locking hole (14) and a plurality of support brackets (12);

the second main supporting beam (31) is fixedly connected with the desktop rack (11), and the side wall of the extension plate (30) is attached to the side wall of the desktop board (10);

the desktop plate (10) is arranged on the desktop frame (11) in a sliding way; the lock tongue piece (13) is installed on the lower surface of the desktop plate (10), the lock hole (14) is located on the desktop frame (11), and when the desktop plate (10) slides to the tail end on the desktop frame (11), the lock tongue piece (13) can extend into the lock hole (14) and is matched with the lock hole (14) to prevent the desktop plate (10) from sliding back on the desktop frame (11).

5. A table according to claim 4, characterized in that two connecting bars (33) are provided, symmetrically distributed, said table top frame (11) comprising a first main supporting beam (111);

one end of each of the two connecting strips (33) is fixedly connected with the front side wall and the rear side wall of the second main supporting beam (31), and the other end of each of the two connecting strips (33) is fixedly connected with the front side wall and the rear side wall of the first main supporting beam (111).

6. A table according to claim 5, wherein one end of the second main supporting beam (31) is provided with front and rear two eighth protrusions (310), said two eighth protrusions (310) being respectively located on the front and rear side walls of the second main supporting beam (31);

one end of the first main supporting beam (111) is provided with a front second groove (1110) and a rear second groove (1110), and the two second grooves (1110) are respectively positioned on the front side wall and the rear side wall of the first main supporting beam (111);

the eighth bulge (310) is in concave-convex fit with the second groove (1110).

7. A table according to claim 4, wherein at least two support panels (35) are provided, the support panels (35) comprising a first section which is fixedly attached to the lower surface of the extension panel (30) by means of at least two screws and a second section which is positioned below the table top and in contact with the table top (10).

8. A method of assembling a table as claimed in any one of claims 5 to 6, wherein the method comprises the steps of: the method comprises the following steps: installing a bolt piece (13) and a plurality of sliding blocks (15) on a desktop plate (10), fixedly connecting a desktop frame (11) with two supporting frames (12), fixedly installing an extension plate (30) on a second main supporting beam (31) and an auxiliary supporting beam (32), and fixedly connecting two connecting strips (33) with the second main supporting beam (31);

step two: fixedly connecting the two connecting strips (33) with the first main supporting beam (111);

step three: the sliding blocks (15) on the desktop plate (10) are respectively aligned with the notches (1100) of the first sliding grooves (110) and then downwards, so that the desktop plate (10) is slidably mounted on the desktop frame (11), then the desktop plate (10) is slid, the lock tongue pieces (13) stretch into the lock holes (14), and the desk and the extension module are assembled.