Connecting structure of table frame, table board and stand column

Abstract

The utility model discloses a connecting structure of a table frame, a table board and a stand column, which comprises the connecting structure of the table frame and the stand column and at least one connecting piece screwed on the bottom surface of the table board through a plurality of screws, and each connecting piece is provided with a bayonet which is clamped on a cross beam of the table frame from top to bottom and a buckle which is buckled with the cross beam; a groove for accommodating the top plate of the connecting piece and enabling the top surface of the connecting piece to be flush with or lower than the top surface of the cross beam is formed in the top of the cross beam; the cross beam is a rectangular steel pipe, and the groove is formed by removing a section of rectangular steel pipe top plate; the bayonet is a [-shaped bayonet with a downward opening; the buckle is a triangular block with a wide upper part and a narrow lower part, the clamping hole is a rectangular clamping hole formed in one vertical plate of the rectangular steel pipe of the cross beam, and the top surface of the triangular block of the buckle is buckled on the top buckling surface of the rectangular clamping hole. According to the connecting structure of the table frame, the table board and the stand column, the table board is tightly attached to the cross beams in the length direction of the cross beams, namely the cross beams are strip-shaped face stress, and connection is firm, stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of tables, specifically a connection structure between a table frame, a tabletop, and uprights. Background Technology

[0002] A table frame typically consists of a crossbeam and support plates at both ends, with the crossbeam and support plates forming a 90° angle. The table frame acts as a bridge between the tabletop and the uprights (such as lifting uprights): it connects to both the top of the upright and the tabletop. The table frame is usually connected to the tabletop via one or two connectors, which are pre-screwed to the tabletop. If multiple screws are used, the downward-facing clips are then inserted into the crossbeam of the table frame on-site and secured with clips and holes.

[0003] However, the existing connection structure between the table frame, tabletop, and uprights still has the following shortcomings:

[0004] Because the top plates of the connectors are all thick, during the actual load-bearing process and during the lifting and lowering process, the tabletop is only supported by one or two connectors along the entire length of the crossbeam. That is, in terms of length, it is basically a point of force rather than a strip-shaped surface of force. Sometimes, the screws, such as self-tapping screws, will detach from the tabletop due to uneven force, which affects the firmness, stability and reliability of the connection between the crossbeam and the tabletop, and also brings a bad user experience.

[0005] Furthermore, compared to a single tabletop, a tabletop made of several pieces of wood can use smaller pieces of wood, such as scraps, which has advantages such as relatively low material costs, relatively small packaging volume, and the ability to replace only the damaged small pieces of wood if wear occurs after a long period of use. However, due to the disadvantages mentioned above, the promotion and application of spliced ​​tabletops have been hindered.

[0006] In addition, existing crossbeams are generally two in number, which results in relatively high material costs and a relatively complicated assembly process. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a connection structure between the tabletop and the column, where the tabletop is in close contact with the crossbeam along the length of the crossbeam, i.e., the crossbeam is a strip-shaped surface bearing the force.

[0008] The technical solution of this utility model is to provide a connection structure between a table frame, a tabletop, and a column, including a connection structure between the table frame and the column and at least one connector screwed to the bottom surface of the tabletop by multiple screws. Each connector has a slot for engaging with the crossbeam of the table frame from top to bottom and a buckle for fastening with the crossbeam. The top of the crossbeam has a groove for accommodating the top plate of the connector and making the top surface of the connector flush with or lower than the top surface of the crossbeam.

[0009] With the above structure, the connection structure between the table frame, tabletop, and uprights of this utility model has the following advantages: Since the top surface of the connector is flush with or lower than the top surface of the crossbeam, during the actual load-bearing process of the tabletop and during the load-bearing and lifting process, the tabletop is subjected to strip-shaped force along the entire length of the crossbeam. This prevents the phenomenon of screws, such as self-tapping screws, being detached from the tabletop due to uneven force caused by the stress on the existing technology points. It greatly improves the firmness, stability, and reliability of the connection between the crossbeam and the tabletop, and also provides users with a better experience.

[0010] Furthermore, the crossbeam is a rectangular steel tube, and the groove is a groove with a section of the top plate of the rectangular steel tube removed; the latch is a downward-opening U-shaped latch. With this structure, during the actual load-bearing process and during lifting and lowering, the tabletop bears force on the entire rectangular surface of the crossbeam, resulting in a larger load-bearing area. This largely avoids the phenomenon of screws, such as self-tapping screws, detaching from the tabletop due to uneven force distribution caused by existing technologies. This further improves the firmness, stability, and reliability of the connection between the crossbeam and the tabletop, providing users with a better experience.

[0011] Furthermore, the top surface of the connector is flush with the top surface of the rectangular steel tube of the crossbeam. With the above structure, the top surface of the connector also contacts the bottom surface of the tabletop, making the load-bearing area of ​​the tabletop larger. This further ensures a firm, stable, and reliable connection between the crossbeam and the tabletop, providing users with a better experience.

[0012] Furthermore, the tabletop is composed of a front panel, a rear panel, and left and right panels at both ends of the front and rear panels. The connecting parts also serve as reinforcing supports for the tabletop. There are two connecting parts that serve as reinforcing supports: one is screwed to the left, front, and rear panels with multiple screws, and the other is screwed to the right, front, and rear panels with multiple screws. The latches are two latches located on one side of the bottom of the downward-facing U-shaped latch on the connecting parts. There are locking holes on the crossbeam corresponding to the two latches for the latches to be inserted. With the above structure, it has the advantages of relatively low material cost, relatively small packaging volume, and only the damaged small pieces need to be replaced when worn. At the same time, as mentioned above, it has the technical effects of a firm, stable, and reliable connection between the crossbeam and the tabletop, providing users with a good experience, thus facilitating the promotion and application of modular tabletops.

[0013] Furthermore, the crossbeam is a rectangular steel tube; the clip is a triangular block, wider at the top and narrower at the bottom, and the clip hole is a rectangular clip hole located on a vertical plate of the rectangular steel tube of the crossbeam. The top surface of the triangular block of the clip snaps onto the top clip surface of the rectangular clip hole. With this structure, the clip prevents the connecting piece, which also serves as a reinforcing support for the tabletop, from separating from the crossbeam. This further alleviates the uneven stress on screws such as self-tapping screws, preventing them from detaching from the tabletop during actual load-bearing and lifting processes. This further improves the firmness, stability, and reliability of the connection between the crossbeam and the tabletop, and the structure is simple, easy to install, and provides a better user experience.

[0014] Furthermore, the structure of each connecting member that also serves as a tabletop reinforcement support is as follows: the connecting member uses a rectangular steel tube with a cross-sectional width greater than its height. The longitudinal shape is such that the top plate runs the entire length, and the top plate has multiple screw holes. The top plate forms the horizontal side of a downward-opening "U"-shaped latch. The two vertical plates have the same structure: both ends are inclined surfaces sloping from the upper outer edge to the lower inner edge. One vertical side of the "U"-shaped latch on both vertical plates is a vertical edge, and the other vertical side of the "U"-shaped latch on both vertical plates is also a vertical edge. The triangular blocks of the latch are all located at the bottom of the other vertical side of the downward-opening "U"-shaped latch on both vertical plates and extend towards one vertical side. The two vertical plates on one side of the downward-opening "U"-shaped latch are connected by a base plate, and the two vertical plates on the other side of the downward-opening "U"-shaped latch are connected by another base plate. With the above structure, the connecting member itself, which also serves as a tabletop reinforcement support, has better strength, mechanical properties, and a more secure connection with the crossbeam, thus improving the aforementioned technical effects.

[0015] Furthermore, the table frame preferably has one crossbeam. Two connecting pieces that also serve as tabletop reinforcement supports have their downward-facing, U-shaped latches engaged with this crossbeam, and the triangular latching blocks of the two latches are fastened to the latching surfaces of their respective rectangular latching holes. With this structure, the tabletop is secured to the crossbeam via the two connecting pieces that also serve as tabletop reinforcement supports, thus ensuring the aforementioned technical effects while relatively saving material costs and simplifying the assembly process.

[0016] Furthermore, the connection structure between the table frame and the uprights is as follows: the two ends of the crossbeam are fixed to the top of the outer plate of the rectangular steel tube of each lifting upright by multiple screws; the table frame also includes two L-shaped support plates, with the inner angle of the L-shaped support plates facing outwards, and the top surface of the horizontal plate of the L-shaped support plate is flush with the top surface of the rectangular steel tube of the crossbeam. The horizontal plates of the L-shaped support plates are each fixed to the bottom surface of the left and right plates of the tabletop by multiple screws, and the vertical plates of the L-shaped support plates are fixed to the top of the other outer plate of the rectangular steel tube of each lifting upright by multiple screws. With the above structure, the connection structure between the table frame and the lifting uprights is relatively simple, assembly is relatively convenient, and the connection is firm, stable, and reliable. It also further increases the load-bearing area of ​​the table frame on the tabletop, further ensuring the firm, stable, and reliable connection between the table frame and the tabletop, providing users with a better experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the lifting tabletop equipped with the connecting structure of this utility model. Figures 1-8 (Screws, bolts, and nuts are basically omitted in this text).

[0018] Figure 2 yes Figure 1 A magnified structural diagram of A in the middle.

[0019] Figure 3 yes Figure 1 A magnified structural diagram of B in the diagram.

[0020] Figure 4 yes Figure 1 A structural diagram of a tabletop and a connector is revealed after the explosion from a different angle (only a few pins are shown).

[0021] Figure 5 yes Figure 4 A magnified structural diagram of C.

[0022] Figure 6 yes Figure 4 A magnified structural diagram of D in the diagram.

[0023] Figure 7 yes Figure 5 An enlarged structural diagram of the connector from a different angle.

[0024] Figure 8 yes Figure 7 A schematic diagram of the connector from a different angle.

[0025] As shown in the figure:

[0026] 1. Table frame; 11. Crossbeam; 111. Top surface of crossbeam; 1111. Top plate of first rectangular steel pipe; 1112. Vertical plate of first rectangular steel pipe; 11121. Clip hole; 111211. Clip surface; 112. Groove; 12. L-shaped support plate; 121. Horizontal plate; 1211. Top surface of L-shaped support plate; 122. Vertical plate; 123. Inner angle.

[0027] 2. Lifting column, 21. One outer panel, 22. Another outer panel;

[0028] 3. Tabletop; 31. Front panel; 32. Back panel; 33. Left panel; 34. Right panel; 35. Pin; 36. Pin hole;

[0029] 4. Connector; 41. Connector top plate; 411. Connector top surface; 412. Screw through hole; 42. Bayonet; 43. Second rectangular steel pipe vertical plate; 431. Buckle; 432. Bevel; 433. One vertical side; 434. The other vertical side; 44. Second rectangular steel pipe bottom plate. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of specific embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various specific embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown.

[0032] A preferred embodiment of the connection structure between the table frame, tabletop, and uprights of this utility model includes a connection structure between the table frame 1 and the uprights and at least one connector 4 screwed to the bottom surface of the tabletop 3 by a plurality of screws. Each connector 4 has a slot 42 for engaging with the crossbeam 11 of the table frame 1 from top to bottom and a buckle 431 for fastening with the crossbeam 11. The top of the crossbeam 11 has a groove 112 for accommodating the top plate 41 of the connector and for making the top surface 411 of the connector flush with or lower than the top surface 111 of the crossbeam.

[0033] The crossbeam 11 is preferably a rectangular steel pipe, and the groove 112 is preferably a groove 112 with a section of the top plate of the rectangular steel pipe removed, such as the top plate 1111 of the first rectangular steel pipe. The bayonet 42 is preferably a U-shaped bayonet 42 with the opening facing downwards. The section can be a section of the top plate of the rectangular steel pipe, such as the top plate 1111 of the first rectangular steel pipe, whose length is equal to the width of the top plate 41 of the connector, or it can be a section of the top plate of the rectangular steel pipe, such as the top plate 1111 of the first rectangular steel pipe, whose length is slightly greater than the width of the top plate 41 of the connector. The function of the groove 112 is as described above: to accommodate the top plate 41 of the connector and to make the top surface 411 of the connector flush with or lower than the top surface 111 of the crossbeam.

[0034] The top surface 411 of the connector is preferably flush with the top surface 42 of the rectangular steel pipe of the crossbeam, i.e., the top surface of the first rectangular steel pipe.

[0035] See Figure 4 The tabletop 3 can be composed of a front panel 31, a rear panel 32, and left and right panels 33 and 34 at both ends of the front and rear panels after splicing. The connecting member 4 also serves as a reinforcing support for the tabletop. There are two connecting members 4, or two pieces, one of which is screwed to the left panel 33, front panel 31, and rear panel 32 by multiple screws, and the other is screwed to the right panel 34, front panel 31, and rear panel 32 by multiple screws. The buckle 431 can be two buckles 431 on the connecting member 4 located on the bottom side of the U-shaped buckle 42 with the opening facing downward. That is, each second rectangular steel pipe vertical plate 43 has one buckle 431, and the first rectangular steel pipe vertical plate 1112 of the crossbeam 11 corresponding to the two buckles 431 has a buckle hole 11121 for the two buckles 431 to be inserted. The reinforcing support that also serves as a tabletop can also be described as a reinforcing support that also serves as a tabletop, or as a reinforcing support that also serves as tabletop 3.

[0036] Of course, it is also possible to have only one buckle and one corresponding locking hole, or three or four buckles and three or four locking holes on the two first rectangular steel pipe vertical plates of the crossbeam, corresponding to the number of buckles. The screws used here are self-tapping screws. The tabletop can also be made up of only the front and back panels, or only the left and right panels.

[0037] As described above, the crossbeam 11 is preferably a rectangular steel pipe. The buckle 431 is preferably a triangular block that is wider at the top and narrower at the bottom, and the buckle hole 11121 is preferably a rectangular buckle hole 11121 provided on a vertical plate of the rectangular steel pipe crossbeam 11, such as a first rectangular steel pipe vertical plate 1112. The top surface of the triangular block of the buckle 431 is snapped onto the top snapping surface 111211 of the rectangular buckle hole 11121.

[0038] The specific structure of each connecting piece 4, which also serves as a reinforcing support for the tabletop, can be as follows: The connecting piece 4 uses a rectangular steel tube with a cross-sectional width greater than its height, such as a second rectangular steel tube. Its longitudinal shape is a top plate, i.e., the connecting piece top plate 41, also called the second rectangular steel tube top plate, which runs through the entire length of the connecting piece 4. The top plate, i.e., the connecting piece top plate 41, has multiple screw holes 412 for passing multiple screws, such as multiple self-tapping screws. The top plate, i.e., the connecting piece top plate 41, forms the horizontal side of a downward-opening U-shaped latch 42. The two vertical plates, i.e., the two second rectangular steel tube vertical plates 43, have the same structure: both ends are inclined surfaces 432, or inclined sides, sloping from the upper outer surface to the lower inner surface. The two vertical plates, i.e., the two second rectangular steel tube vertical plates 43... The vertical side 433 of the U-shaped latch 42 is a vertical side, and the other vertical side 434 of the U-shaped latch 42 on the two vertical plates, i.e., the two second rectangular steel pipe vertical plates 43, is also a vertical side. The triangular blocks of the buckle 431 are all located at the bottom of the other vertical side 434 of the U-shaped latch 42 with the opening facing downwards and extend towards one vertical side 433. The two vertical plates on one side of the U-shaped latch 42 with the opening facing downwards, i.e., the two second rectangular steel pipe vertical plates 43, are connected by a base plate, i.e., a second rectangular steel pipe base plate 44. The two vertical plates on the other side of the U-shaped latch 42 with the opening facing downwards, i.e., the two second rectangular steel pipe vertical plates 43, are connected by another base plate, i.e., another second rectangular steel pipe base plate 44. It is easy to understand that the two second rectangular steel pipe base plates 44 are on the same plane and are both parallel to the top plate of the second rectangular steel pipe, i.e., the top plate of the connector 41.

[0039] The table frame 1 preferably has one crossbeam 11. The two connecting parts 4, which also serve as tabletop reinforcing supports, have downward-facing U-shaped latches 42 that engage with the crossbeam 11. The triangular latches of the two latches 431 are fastened to the latching surfaces 111211 or fastening surfaces of their respective rectangular latching holes 11121.

[0040] The connection structure between the table frame 1 and the uprights is as follows: the two ends of the crossbeam 11 are fixed to the top of the outer plate 21 of the rectangular steel tube of each lifting upright 2 by multiple screws; the table frame 1 also includes two L-shaped support plates 12, the inner angle 123 of the L-shaped support plates 12 facing outwards, the top surface of the horizontal plate 121 of the L-shaped support plate 12 (like the top surface 1211 of the L-shaped support plate) is flush with the top surface of the rectangular steel tube of the crossbeam 11 (like the top surface 111 of the crossbeam), the horizontal plate 121 of the L-shaped support plate 12 is fixed to the bottom surface of the left plate 33 and the right plate 34 of the table 3 by multiple screws, and the vertical plate 122 of the L-shaped support plate 12 is fixed to the top of the other outer plate 22 of the rectangular steel tube of each lifting upright 2 by multiple screws. It is easy to understand that the outer plate 21 and the other outer plate 22 mentioned above form a 90° angle with each other. The crossbeam 11 and the L-shaped support plate 12 form a 90° angle with each other, and the middle of the length of the vertical plate 122 of the L-shaped support plate 12 is fixed to the top of the other outer plate 22 of the rectangular steel pipe of the lifting column 2.

[0041] It is easy to understand that the joints of the left panel 33, front panel 31, rear panel 32, and right panel 34, which are assembled into tabletop 3, can all be reinforced with multiple pins 35 and a pair of pin holes 36 that match each pin 35. The connector 4, which also serves as a reinforcing support for the tabletop, is screwed to the corresponding panel of tabletop 3, thus providing additional support. Combined with the support of the L-shaped support plates 12 at both ends, the assembled tabletop 3 fully possesses the necessary load-bearing capacity. The terms "front," "back," "left," and "right" are used for illustrative purposes and are not intended to limit the load.

[0042] Components, structures, or quantities not marked above are not shown in the drawings, and some components are not marked in the drawings. The drawings are for illustrative purposes only. In case of any inconsistency between the drawings and the text description, or between the drawings themselves, the text description shall prevail.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection structure between a table frame, a tabletop, and a column, comprising a connection structure between the table frame and the column and at least one connector screwed to the bottom surface of the tabletop by a plurality of screws, each connector having a latch for engaging with a crossbeam of the table frame from top to bottom and a buckle for engaging with the crossbeam; characterized in that: The top of the crossbeam has a groove for accommodating the top plate of the connector and making the top surface of the connector flush with or lower than the top surface of the crossbeam.

2. The connection structure between the table frame, tabletop, and uprights according to claim 1, characterized in that: The crossbeam is a rectangular steel pipe, and the groove is a groove from which a section of the top plate of the rectangular steel pipe has been removed; the latch is a U-shaped latch with the opening facing downwards.

3. The connection structure between the table frame, tabletop, and uprights according to claim 2, characterized in that: The top surface of the connector is flush with the top surface of the rectangular steel tube of the crossbeam.

4. The connection structure between the table frame, tabletop, and uprights according to claim 1, characterized in that: The tabletop consists of a front panel, a rear panel, and left and right panels at both ends of the front and rear panels. The connecting parts also serve as reinforcing supports for the tabletop. There are two connecting parts that serve as reinforcing supports for the tabletop. One part is screwed and fixed to the left, front, and rear panels with multiple screws, and the other part is screwed and fixed to the right, front, and rear panels with multiple screws. The buckles are two buckles located on one side of the bottom of the U-shaped buckle with the opening facing downwards. There are buckle holes on the crossbeam corresponding to the two buckles for the two buckles to be inserted.

5. The connection structure between the table frame, tabletop, and uprights according to claim 4, characterized in that: The crossbeam is a rectangular steel pipe; the buckle is a triangular block that is wider at the top and narrower at the bottom, and the buckle hole is a rectangular buckle hole set on a vertical plate of the rectangular steel pipe of the crossbeam. The top surface of the triangular block of the buckle is buckled on the top buckle surface of the rectangular buckle hole.

6. The connection structure between the table frame, tabletop, and uprights according to claim 5, characterized in that: The structure of each connecting component that also serves as a tabletop is as follows: the connecting component uses a rectangular steel tube with a cross-sectional width greater than its height. The longitudinal shape is such that the top plate runs through the entire length. The top plate has multiple screw holes and forms the horizontal side of a downward-opening U-shaped latch. The two vertical plates have the same structure: both ends are inclined surfaces that slope from the upper outer edge to the lower inner edge. One vertical side of the U-shaped latch on both vertical plates is a vertical edge, and the other vertical side of the U-shaped latch on both vertical plates is also a vertical edge. The triangular blocks of the latch are all located at the bottom of the other vertical side of the downward-opening U-shaped latch on both vertical plates and extend towards one vertical edge. The two vertical plates on one side of the downward-opening U-shaped latch are connected by a base plate, and the two vertical plates on the other side of the downward-opening U-shaped latch are connected by another base plate.

7. The connection structure between the table frame, tabletop, and uprights according to claim 5, characterized in that: The table frame has one crossbeam, and two connecting parts that also serve as tabletop reinforcement supports have downward-facing U-shaped latches that engage with the crossbeam. The two triangular latches are fastened to the latching surfaces of their respective rectangular latching holes.

8. The connection structure between the table frame, tabletop, and uprights according to claim 7, characterized in that: The connection structure between the table frame and the uprights is as follows: the two ends of the crossbeam are fixed to the top of the outer plate of the rectangular steel tube of each lifting upright by multiple screws; the table frame also includes two L-shaped support plates, the inner angle of the L-shaped support plates faces outward, the top surface of the horizontal plate of the L-shaped support plate is flush with the top surface of the rectangular steel tube of the crossbeam, the horizontal plate of the L-shaped support plate is fixed to the bottom surface of the left and right plates of the table by multiple screws, and the vertical plate of the L-shaped support plate is fixed to the top of the other outer plate of the rectangular steel tube of each lifting upright by multiple screws.

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