Table beam assembly and table structure thereof

Abstract

The utility model discloses a table cross beam assembly and a table structure thereof, the table cross beam assembly comprises two connecting plates which are distributed along the front and back, the connecting plates comprise a plurality of lap joint plates which are sequentially distributed along the left and right, and every two adjacent lap joint plates are detachably connected and fixed, so that the length of the connecting plates can be adjusted; an assembling groove extending in the left-right direction is formed between the two connecting plates, assembling box bodies are arranged at the left end and the right end of the assembling groove correspondingly, and the assembling box bodies are detachably connected and fixed to the lap joint plates. The left end and the right end of the assembling groove are further provided with supporting frames extending front and back correspondingly, the two supporting frames are located on the sides, away from each other, of the two assembling box bodies correspondingly, and the supporting frames are detachably connected and fixed to the left side walls or the right side walls of the assembling box bodies. The table beam assembly is reasonable in structural design, the length of the table beam assembly can be adjusted according to the lengths and the widths of different table tops, and universality is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a desk technical field especially relates to a desk beam subassembly and desk structure thereof. BACKGROUND

[0002] Prior art defects: prior art, must according to different desktop length and width and order specific length beam subassembly.

[0003] Problems to be solved: how to design a kind of universal desk beam subassembly. INVENTION CONTENTS

[0004] The utility model relates to a desk beam subassembly and desk structure thereof, to design a kind of universal desk beam subassembly.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model provides a kind of desk beam subassembly, including two connecting plates distributed along front and back, the connecting plate includes a plurality of lap plates sequentially distributed along left and right, two adjacent the lap plate between detachable connection and fixed, to make the length of the connecting plate can be adjusted;Two the connecting plate between is equipped with the assembly slot extending along left and right, the left and right ends of the assembly slot are equipped with assembly box body respectively, the assembly box body is detachably connected and fixed with the lap plate;The left and right ends of the assembly slot are also equipped with the support frame extending along front and back respectively, two the support frame is located in the side of two assembly box body away from each other respectively, and the left side wall or right side wall of the support frame and the assembly box body is detachably connected and fixed.

[0006] Further, two adjacent the lap plate between is connected by a plurality of screws and is positioned by a plurality of positioning rods, to make the length of the connecting plate can be adjusted.

[0007] Further, the left and right side walls of the assembly box body are connected by a plurality of screws and are positioned by a plurality of positioning rods with the lap plate of front and back two sides respectively.

[0008] Further, the left and right sides of the bottom of the assembly slot are respectively equipped with the edge of opposite convex, and the left and right sides of the top of the assembly slot are respectively equipped with the edge of opposite convex.

[0009] Further, the left side wall or right side wall of the support frame and the assembly box body is connected by a plurality of screws and is positioned by a plurality of positioning rods.

[0010] Further, the support frame is the plate of L type, and the opening of the support frame faces downward.

[0011] A table structure, comprising a table board, the bottom of the table board is provided with a table beam assembly extending along left and right, the table beam assembly is the table beam assembly of any one of the above technical solutions; the bottom of two assembly boxes is respectively provided with a table leg, and the support frame and the connecting plate are connected and fixed to the bottom of the table board through a plurality of screws upward.

[0012] Further, the bottom of each of the two table legs is provided with a base extending forward and backward, the middle of the base is provided with a rectangular groove, and the base is connected and fixed to the bottom end of the table leg through the rectangular groove by means of screws.

[0013] Further, the table leg is a lifting mechanism capable of lifting, the inside of the assembly box is provided with a motor, and the motor can drive the lifting mechanism to lift.

[0014] Further, the edge of the table board is provided with an operation plate, the motor is a worm gear deceleration motor, the operation plate is electrically connected with two worm gear deceleration motors, and the plug of the worm gear deceleration motor is connected to the outside through an electric wire.

[0015] In summary, the technical scheme of the table beam assembly has the following beneficial effects: the structure of the table beam assembly is reasonable, (1) the two connecting plates are arranged along the front and back, the connecting plate comprises a plurality of lapping plates arranged along the left and right, the two adjacent lapping plates are detachably connected and fixed, so that the length of the connecting plate can be adjusted; thus, the number of the lapping plates in the connecting plate can be adjusted according to different lengths and widths of the table top, or the two adjacent lapping plates can be moved close to or away from each other, so that the length of the connecting plate can be adjusted. (2) the assembly groove extending along the left and right is arranged between the two connecting plates, the assembly groove is provided with the assembly box at the left and right ends, and the assembly box is detachably connected and fixed with the lapping plate; thus, the connecting plate and the assembly box can be connected and fixed together. (3) the support frame extending along the front and back is further arranged at the left and right ends of the assembly groove, the two support frames are arranged at the sides away from each other of the two assembly boxes, and the support frame is detachably connected and fixed with the left side wall or the right side wall of the assembly box; thus, the support frame, the assembly box and the connecting plate can be connected and fixed together. As can be seen from the above analysis, the length of the table beam assembly can be adjusted according to different lengths and widths of the table top, and the table beam assembly has high universality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a bottom view of the table beam assembly;

[0017] Figure 2 is a top view of the table beam assembly;

[0018] Figure 3is the overhead perspective structural schematic view of the desk board of the utility model;

[0019] Figure 4 is the overhead perspective structural schematic view of the desk beam assembly of the utility model;

[0020] Figure 5 is the overhead perspective structural schematic view of the assembly box body upper side wall of the utility model;

[0021] Figure 6 is the overhead perspective structural schematic view of the assembly box body of the utility model;

[0022] Figure 7 is the overhead perspective structural schematic view of the base of the utility model;

[0023] Figure 8 is the overhead perspective structural schematic view of the first lifting pipe of the utility model;

[0024] Figure 9 is the overhead perspective structural schematic view of the second lifting pipe of the utility model;

[0025] Figure 10 is the overhead perspective structural schematic view of the third lifting pipe of the utility model;

[0026] Figure 11 is the upper side partial enlarged view of Figure 10 ;

[0027] Figure 12 is the lower side partial enlarged view of Figure 10 ;

[0028] Figure 13 is the overhead perspective structural schematic view of the lifting rod of the utility model;

[0029] Figure 14 is the overhead perspective structural schematic view of the fourth lifting pipe of the utility model;

[0030] Mark explanation: desk board (1), desk foot (2), lifting drive mechanism (3), base (4), desk beam assembly (5), assembly box body (6), operation plate (7), support frame (8);

[0031] The utility model discloses a first lifting pipe (201), second lifting pipe (202), third lifting pipe (203), first connecting plate (204), second connecting plate (205), screw rod (301), fourth lifting pipe (302), lifting rod (303), bearing (304), guide (305), flexible piece (306), connecting block (307), nut (308), support block (309), L type board (3010), pivot (3011), first locating post (3012), first screw hole (3013), first locating hole (3014), first connecting hole (3015), second locating hole (3016), second connecting hole (3017), second screw hole (3018), third screw hole (3019), rectangular groove (401), connecting plate (501), lap plate (502), motor (601), plug (602), wire (603). DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, but will not constitute the limitation on the protection scope of the utility model.

[0033] In the utility model, in order to describe more clearly, make the following explanation: the observer faces the attached Figure 1 The left side of the observer is set as left, the right side of the observer is set as right, the front of the observer is set as front, the back of the observer is set as back, the upper surface of the observer is set as upper, the lower surface of the observer is set as lower, it should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle part", "upper", "lower" in the text indicate the orientation or positional relationship based on the orientation or positional relationship of the attached drawings, and are only for the convenience of clearly describing the utility model, and are not indicative or suggestive of the structure or parts indicated must have a particular orientation, and therefore can not be understood as the limitation on the utility model. In addition, the terms "first", "second", "third", "fourth" are only for the purpose of clarity or simplification of description, and can not be understood as indicative or suggestive of relative importance or quantity.

[0034] Referring to Figures 1 to 14The embodiment provides a table beam assembly, which comprises two connecting plates 501 distributed along the front and back, the connecting plate 501 comprises a plurality of clamping plates 502 distributed along the left and right in sequence, and the length of the connecting plate 501 can be adjusted through detachable connection and fixation between the adjacent two clamping plates 502; an assembly groove extending along the left and right is arranged between the two connecting plates 501, assembly box bodies 6 are arranged at the left and right ends of the assembly groove respectively, and the assembly box bodies 6 are detachably connected and fixed with the clamping plates 502; a supporting frame 8 extending along the front and back is further arranged at the left and right ends of the assembly groove respectively, the two supporting frames 8 are located at the sides, away from each other, of the two assembly box bodies 6, and the supporting frame 8 is detachably connected and fixed with the left side wall or the right side wall of the assembly box body 6. Effects: (1) the length of the connecting plate can be adjusted through the two connecting plates distributed along the front and back, the connecting plate comprising a plurality of clamping plates distributed along the left and right in sequence, and the length of the connecting plate being adjusted through detachable connection and fixation between the adjacent two clamping plates; thus, the number of the clamping plates in the connecting plate can be adjusted according to different lengths and widths of the table top, or the adjacent two clamping plates can be moved closer to or farther away from each other, so that the length of the connecting plate is adjusted. (2) the assembly box body is arranged at the left and right ends of the assembly groove extending along the left and right between the two connecting plates, and the assembly box body is detachably connected and fixed with the clamping plate; thus, the connecting plate and the assembly box body are connected and fixed together. (3) the supporting frame extending along the front and back is further arranged at the left and right ends of the assembly groove, the two supporting frames are located at the sides, away from each other, of the two assembly box bodies, and the supporting frame is detachably connected and fixed with the left side wall or the right side wall of the assembly box body; thus, the supporting frame, the assembly box body and the connecting plate are connected and fixed together. Therefore, it is known from the analysis that the length of the table beam assembly of the utility model can be adjusted according to different lengths and widths of the table top, and the table beam assembly has high universality.

[0035] Specifically, the adjacent two clamping plates 502 are connected through a plurality of screws and positioned and matched through a plurality of positioning rods, so that the length of the connecting plate 501 can be adjusted. Effects: in this way, the positioning rods not only have high positioning accuracy, but also make it very convenient to adjust the length of the connecting plate 501 and the table beam assembly 5.

[0036] Specifically, the front and back side walls of the assembly box body 6 are connected with the clamping plates 502 on the front and back sides through a plurality of screws and positioned and matched through a plurality of positioning rods. Effects: in this way, the assembly box body 6 and the clamping plates 502 can be quickly positioned and fixed, and are also convenient to disassemble.

[0037] Specifically, the front and rear sides of the bottom of the assembly groove are respectively provided with edges protruding towards each other, and the front and rear sides of the top of the assembly groove are respectively provided with edges protruding away from each other. Action: The front and rear sides of the bottom of the assembly groove can support the assembly box body, making it easier to install the assembly box body 6, and the front and rear sides of the top of the assembly groove can facilitate screw connection and support with the bottom surface of the table plate.

[0038] Specifically, the support frame 8 is connected with the left or right side wall of the assembly box body 6 through a plurality of screws and positioned through a plurality of positioning rods. Action: The support frame 8 can be quickly positioned and fixed, and is also convenient to disassemble.

[0039] Specifically, the support frame 8 is in the shape of an L-shaped plate, and the opening of the support frame 8 faces downward. Action: The horizontal surface of the support frame 8 can support and screw connect with the bottom surface of the table plate, and the vertical surface of the support frame 8 can be installed and fixed with the assembly box body.

[0040] A table structure includes a table plate 1, the bottom of the table plate 1 is provided with a table beam assembly 5 extending along the left and right, the table beam assembly 5 is any one of the above technical solutions; the bottom of two assembly box bodies 6 is respectively provided with a table leg 2, and the support frame 8 is connected and fixed with the bottom of the table plate 1 through a plurality of screws together with the connecting plate 501. Action: The support frame 8 supports the table plate 1 together with the connecting plate 501, thereby improving the force balance of the table plate. The length of the table beam assembly of the utility model can be adjusted according to the length and width of the tabletop of different table plates, and the utility model has strong universality.

[0041] Specifically, the bottom of each of the two table legs 2 is provided with a base 4 extending forward and backward, the middle of the base 4 is provided with a rectangular groove 401, and the base 4 is screw connected and fixed with the bottom end of the table leg 2 through the rectangular groove 401. Action: The base 4 can provide stable support.

[0042] Specifically, the table leg 2 is a lifting mechanism capable of lifting, the inside of the assembly box body 6 is provided with a motor 601, and the motor 601 can drive the lifting mechanism to lift. Action: Under the driving of the motor 601, the lifting mechanism lifts and moves the table plate up and down, thereby facilitating the use of the office table.

[0043] Specifically, the edge of the table plate 1 is provided with an operation plate 7, the motor 601 is a worm gear reducer motor, the operation plate 7 is electrically connected with the two worm gear reducer motors; the plug 602 of the worm gear reducer motor is externally penetrated through the assembly box body 6 through the wire 603. Action: The operation plate facilitates the control of the motor, the self-locking ability of the worm gear reducer motor can avoid the self-rotation of the screw rod, and the plug 602 can provide power for the motor.

[0044] In order to be easier to understand as a whole, the following further describes the lifting mechanism:

[0045] Referring to Figures 1 to 14 The embodiment provides a lifting mechanism, which comprises a lifting driving mechanism 3, the lifting driving mechanism 3 comprises a vertically extending lead screw 301, a fourth lifting pipe 302 and a lifting rod 303, the bottom end of the lead screw 301 extends into the interior of the fourth lifting pipe 302, the top end of the lead screw 301 extends out of the fourth lifting pipe 302, the lead screw 301 is in threaded connection with the fourth lifting pipe 302, the side wall of the fourth lifting pipe 302 is provided with two guide pieces 305 which are distributed upwards and downwards, a flexible piece 306 is wound between the two guide pieces 305, two connecting blocks 307 are arranged on the flexible piece 306, one of the connecting blocks 307 is located on one side between the two guide pieces 305, the other connecting block 307 is located on the other side between the two guide pieces 305, and one of the connecting blocks 307 is connected and fixed with the lifting rod 303. Action: (1) the lifting driving mechanism comprises a vertically extending lead screw, a fourth lifting pipe and a lifting rod, the bottom end of the lead screw extends into the interior of the fourth lifting pipe, the top end of the lead screw extends out of the fourth lifting pipe, and the lead screw is in threaded connection with the fourth lifting pipe; therefore, in use, the lead screw can be driven to rotate forward by using a motor or the like, so that the rotation of the lead screw drives the fourth lifting pipe to move downwards relative to the lead screw, or the lead screw is driven to rotate reversely, so that the rotation of the lead screw drives the fourth lifting pipe to move upwards relative to the lead screw. (2) the side wall of the fourth lifting pipe is provided with two guide pieces which are distributed upwards and downwards, a flexible piece is wound between the two guide pieces, two connecting blocks are arranged on the flexible piece, one of the connecting blocks is located on one side between the two guide pieces, the other connecting block is located on the other side between the two guide pieces, and one of the connecting blocks is connected and fixed with the lifting rod; therefore, in use, the other connecting block can be fixed, then the fourth lifting pipe is used to move downwards relative to the lead screw, so that the flexible piece rotates around the two guide pieces, and the rotation of the flexible piece drives one of the connecting blocks and the lifting rod to move downwards relative to the fourth lifting pipe in turn, or the fourth lifting pipe is used to move upwards relative to the lead screw, so that the flexible piece rotates around the two guide pieces, and the rotation of the flexible piece drives one of the connecting blocks and the lifting rod to move upwards relative to the fourth lifting pipe in turn. It can be known from the analysis that the lifting mechanism can realize two lifting heights (i.e. the height generated by the relative movement distance of the lead screw and the fourth lifting pipe and the height generated by the relative movement distance of the fourth lifting pipe and the lifting rod) through the cooperation of the guide pieces, the flexible piece, the connecting blocks and the lifting rod; when the lifting mechanism is applied to a lifting table (but actually the lifting mechanism can also be applied to other devices with the same needs), the height of the table plate can reach three times the length of the lead screw, so that the lifting height adjustment capability is improved, and the use is facilitated.

[0046] Specifically, the guide 305 is a fixed pulley, and the side wall of the fourth lifting pipe 302 is rotationally provided with two fixed pulleys distributed along the up and down directions. Action: The arrangement of the fixed pulley can greatly facilitate the rotation of the flexible member, thereby facilitating the up and down movement of the lifting rod.

[0047] Specifically, the side wall of the fourth lifting pipe 302 is fixedly provided with two L-shaped plates 3010 distributed along the up and down directions, the vertical plate of the L-shaped plate 3010 is perpendicularly and fixedly connected with the side wall of the fourth lifting pipe 302, and the parallel plate of the L-shaped plate 3010 is parallel to the side wall of the fourth lifting pipe 302; the two guides 305 are located on the sides of the two L-shaped plates 3010 away from each other, the guide 305 is rotationally arranged between the side wall of the fourth lifting pipe 302 and the parallel plate of the L-shaped plate 3010 through the rotating shaft 3011, and the two L-shaped plates 3010 are located inside the flexible member 306. Action: The L-shaped plate can facilitate the arrangement of the rotating shaft 3011, and facilitate the rotation of the flexible member and the fixed pulley.

[0048] Specifically, the flexible member 306 is a steel wire rope. Action: The steel wire rope has good flexibility and strength, and other flexible members such as belts and chains are also acceptable, as long as they can be adapted.

[0049] Specifically, the fourth lifting pipe 302 is provided with a nut 308 at the top end, the middle part of the lead screw 301 is threadedly connected with the nut 308, the bottom end of the lead screw 301 is provided with a support block 309, and the bottom end of the lead screw 301 is rotationally connected with the fourth lifting pipe 302 through the support block 309. Action: The nut 308 can realize the threaded connection between the lead screw 301 and the fourth lifting pipe 302, and the support block 309 can avoid the shaking of the lead screw 301.

[0050] Specifically, the lifting mechanism further comprises a first lifting pipe 201, a second lifting pipe 202 and a third lifting pipe 203 vertically extending, the second lifting pipe 202 is movably arranged in the first lifting pipe 201, and the third lifting pipe 203 is movably arranged in the second lifting pipe 202; the lifting driving mechanism 3 is arranged in the third lifting pipe 203, another connecting block 307 is fixedly connected with the inner wall of the third lifting pipe 203, the fourth lifting pipe 302 is fixedly connected with the second lifting pipe 202, and the lifting rod 303 is fixedly connected with the first lifting pipe 201. Action: the bottom end of the first lifting pipe can form support with the ground, the second lifting pipe can be used for intermediate transition, and the top end of the third lifting pipe can form support with the table board, so that when the screw rod 301 rotates forward, the fourth lifting pipe 302 drives the second lifting pipe 202 to move downward, and the lifting rod 303 drives the first lifting pipe 201 to move downward, so that the first lifting pipe, the second lifting pipe and the third lifting pipe can be completely unfolded, the height between the ground and the table board is generated accordingly, two heights of lifting (i.e. the height generated by the relative motion distance of the first lifting pipe and the second lifting pipe, and the height generated by the relative motion distance of the second lifting pipe and the third lifting pipe) can be realized, and the height of the table board can reach 3 times of the length of the screw rod. If it is needed to fold the three, the screw rod is reversely rotated, and the operation is simple and convenient. Of course, the structure can also be applied to other devices requiring the same lifting function.

[0051] Specifically, the connecting block 307 is provided with two first positioning columns 3012 and a first screw hole 3013, the top of the lifting rod 303 is provided with two first positioning holes 3014 and a first connecting hole 3015, and the bottom of the third lifting pipe 203 is provided with two second positioning holes 3016 and a second connecting hole 3017; one of the connecting blocks 307 is positioned and matched with the two first positioning holes 3014 and the first connecting hole 3015 of the lifting rod 303 through the two first positioning columns 3012 and the first screw hole 3013, and is screw-connected, and the other connecting block 307 is positioned and matched with the two second positioning holes 3016 and the second connecting hole 3017 of the third lifting pipe 203 through the two first positioning columns 3012 and the first screw hole 3013, and is screw-connected. Action: in this way, the two connecting blocks 307 are fixedly connected with the lifting rod 303 and the third lifting pipe 203 respectively, so that the first lifting pipe, the second lifting pipe and the third lifting pipe can be fully unfolded and folded.

[0052] Specifically, the bottom end of the fourth lifting pipe 302 is provided with a second screw hole 3018, the bottom end of the lifting rod 303 is provided with a third screw hole 3019, the bottom end of the second lifting pipe 202 is provided with a first connecting plate 204, the bottom end of the first lifting pipe 201 is provided with a second connecting plate 205, the bottom end of the fourth lifting pipe 302 is fixedly connected with the first connecting plate 204 through the second screw hole 3018, and the bottom end of the lifting rod 303 is fixedly connected with the second connecting plate 205 through the third screw hole 3019. Action: The screw can realize stable connection and facilitate synchronous movement.

[0053] As a preferred, the first lifting pipe 201, the second lifting pipe 202, the third lifting pipe 203 and the fourth lifting pipe 302 are respectively a first rectangular pipe, a second rectangular pipe, a third rectangular pipe and a fourth rectangular pipe, the lifting rod 303 is an L-shaped bent plate, and the nut 308 is a rectangular block.

[0054] The above lifting mechanism is applied to the above table structure:

[0055] As a preferred, the top of the third lifting pipe 203 is fixedly connected with the bottom of the table plate 1, and the top end of the lead screw 301 is rotatably connected with the bottom of the table plate 1 through the bearing 304. Action: This provides the case where the lifting mechanism is applied to the table structure (a lifting table), and the bearing can realize the rotation of the lead screw while supporting the lead screw.

[0056] As a preferred, the bottom wall of the assembly box body 6 is fixedly connected with the bearing 304, the bottom wall of the assembly box body 6 is fixedly connected with the top end of the third lifting pipe 203, and the top end of the lead screw 301 passes through the bottom wall of the assembly box body 6 upward; the motor 601 is in transmission connection with the top end of the lead screw 301. Action: The motor 601 can drive the lead screw to rotate forward and reverse.

[0057] As a preferred, the bottom end of the first lifting pipe 201 is fixedly connected with the bottom plate 4 through the rectangular groove 401. Action: The bottom plate is fixedly connected with the first lifting pipe.

[0058] The following takes the table structure (a lifting table) as an example to illustrate the lifting mechanism (but other equipment can also use the lifting mechanism), in actual application:

[0059] (1) can utilize the bottom end of the first lifting pipe and the ground to form support, the second lifting pipe carries out intermediate transition, the top end of the third lifting pipe and the table board form support.(2) when needing to raise the table board, first rotate the screw rod forward, then the rotation of the screw rod will drive the fourth lifting pipe to move downward, and since the other connecting block is fixed relative to the table board with the third lifting pipe at this time, the flexible member will rotate around the two guide members, so that the flexible member successively drives one of the connecting blocks and the lifting rod to move downward.(3) when the fourth lifting pipe moves downward, it will drive the second lifting pipe to move downward, and the lifting rod drives the first lifting pipe to move downward, so that the first lifting pipe, the second lifting pipe and the third lifting pipe can be completely unfolded, and the height between the ground and the table board is also generated accordingly, and if the table board needs to be lowered, the screw rod can be reversely rotated, which is simple and convenient to operate.

[0060] The above is the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the scope of protection of the present application.

Claims

1. A table beam assembly, characterized by: The utility model provides a length-adjustable table board, including two connecting plates (501) along front and back distribution, the connecting plate (501) includes a plurality of lap joint plate (502) along left and right distribution, and the detachable connection and fixation between two adjacent lap joint plate (502) can be carried out, so that the length of connecting plate (501) can be adjusted, two connecting plate (501) between be equipped with along left and right extension assembly groove, the left and right ends of assembly groove are equipped with assembly box body (6) respectively, and the detachable connection and fixation of assembly box body (6) with lap joint plate (502) can be carried out, the left and right ends of assembly groove still be equipped with along front and back extension support frame (8) respectively, and two support frame (8) are located two assembly box body (6) mutually far away from one side respectively, and the detachable connection and fixation of support frame (8) with the left side wall or right side wall of assembly box body (6) can be carried out.

2. A table beam assembly according to claim 1, wherein: The length of the connecting plate (501) can be adjusted by connecting and positioning the adjacent two lap joint plates (502) through a plurality of screws and a plurality of positioning rods.

3. A table beam assembly according to claim 2, wherein: The front and rear side walls of the assembly box body (6) are connected by a plurality of screws and positioned by a plurality of positioning rods with the front and rear lap joint plates (502) respectively.

4. The table beam assembly of claim 2, wherein: The front and rear sides of the bottom of the assembly groove are respectively provided with edges protruding towards each other, and the front and rear sides of the top of the assembly groove are respectively provided with edges protruding away from each other.

5. A table beam assembly according to any one of claims 1 to 4, wherein: The support frame (8) is connected by a plurality of screws and positioned by a plurality of positioning rods with the left side wall or right side wall of the assembly box body (6).

6. A table beam assembly according to claim 5, wherein: The support frame (8) is in the shape of an L-shaped plate, and the opening of the support frame (8) faces downward.

7. A table construction comprising a table top (1), characterized in that: The bottom of the table board (1) is provided with a table beam assembly (5) extending left and right, the table beam assembly (5) is any one of the table beam assemblies according to claims 1 to 6, and the bottoms of the two assembly box bodies (6) are respectively provided with table legs (2). The support frame (8) and the connecting plate (501) are connected and fixed upward to the bottom of the table board (1) by a plurality of screws.

8. A table structure according to claim 7, characterized in that: The bottoms of the two table legs (2) are respectively provided with bases (4) extending front and back, the middle parts of the bases (4) are provided with rectangular grooves (401), and the bases (4) are connected and fixed to the bottom ends of the table legs (2) by screws through the rectangular grooves (401).

9. A table structure according to claim 7 or 8, c h a r a c t e r i s e d in that: The table leg (2) is a lifting mechanism that can perform lifting action, and the inside of the assembly box body (6) is provided with a motor (601), which can drive the lifting mechanism to lift.

10. A table structure according to claim 9, characterized in that: The edges of the table board (1) are provided with operation plates (7), the motor (601) is a worm gear reduction motor, the operation plates (7) are electrically connected to the two worm gear reduction motors, and the plugs (602) of the worm gear reduction motors are externally penetrated through the assembly box body (6) by wires (603).

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