Folding table

Abstract

Folding table, characterized in that it comprises a table top (1), a leg tube assembly (2), a support tube (3), a guide tube (4) and a boundary assembly, wherein the boundary assembly is attached to a rear surface of the table top (1), the leg tube assembly (2) and the guide tube (4) are spaced apart from each other on the rear surface of the table top (1) and rotatably connected to the table top (1), and the support tube (3) is rotatably connected to the guide tube (4) so ​​that, when the leg tube assembly (2) is unfolded, the support tube (3) or the guide tube (4) is positioned in the boundary assembly under the influence of the leg tube assembly (2) and the guide tube (4) or the support tube (3) and maintains a fixed position.

Description

TECHNICAL AREA

[0001] The present disclosure relates to the technical field of furniture, in particular to a folding table. BACKGROUND

[0002] A conventional folding table typically consists of a tabletop and separate legs, which are hinged at points near the corners of the tabletop. To ensure the overall stability of the folding table when the legs are extended, a movable support tube is positioned between the legs and the tabletop. Two sets of open, elastic clamps are arranged symmetrically on the underside of the tabletop. When the legs are extended, the support tube is clamped into these elastic clamps. When using the folding table with this configuration, the support tube must be manually aligned with a groove in the elastic clamp and then slowly inserted into the groove. Inserting the support tube into the groove is cumbersome.There is an urgent need for a design that does not require alignment with the clamping groove and allows the support tube to be conveniently inserted into the clamping groove during the unfolding process of the table leg. SUMMARY

[0003] To solve the aforementioned technical problem, one object of the present disclosure is to provide a folding table, wherein this folding table eliminates the inconvenience of inserting the support tube into the clamping grooves.

[0004] To realize the above-mentioned object, the following technical solution is applied in the present disclosure: A folding table includes a tabletop, a leg tube assembly, a support tube, a guide tube, and a boundary assembly, wherein the boundary assembly is attached to a rear surface of the tabletop, the leg tube assembly and the guide tube are spaced apart from each other on the rear surface of the tabletop and rotatably connected to the tabletop, and the support tube and the guide tube are rotatably connected to each other such that when the leg tube assembly is unfolded, the support tube or the guide tube is positioned in the boundary assembly under the action of the leg tube assembly and the guide tube or the support tube maintains a fixed position.

[0005] In a preferred embodiment, the leg tube assembly, the support tube and the guide tube are connected to each other in such a way that, when the leg tube assembly is folded out or in, the guide tube is located on two sides of a pivot joint between the guide tube and the table top.

[0006] In a preferred embodiment, the limiting assembly includes a limiting knob and a slotted block, wherein the slotted block has a limiting slot configured to receive the support tube, the limiting knob being rotatably connected to an end face of the slotted block, and at least part of the limiting slot being covered by rotating the limiting knob. The limiting slot is covered by the limiting knob, thus preventing the support tube from dislodging from the limiting slot, thereby preventing accidental folding of the folding table and improving the overall stability of the table.

[0007] In a preferred embodiment, at least one end of the limiting knob is additionally provided with a projecting rib, a locking slot is further formed on a side wall of the limiting slot, and rotation of the limiting knob causes the projecting rib to engage in or disengage from the locking slot. The interaction between the locking slot and the projecting rib prevents the support tube from disengaging from the limiting slot, reduces the forces acting on the rotatable part of the limiting knob, improves the smooth operation of the limiting knob, and extends its service life.

[0008] In a preferred embodiment, a side wall of one side of the limiting slot is higher than a side wall of the other side of the limiting slot, the limiting knob is rotatably arranged on an end face on a lower side, and the locking slot is formed in a side wall of a higher side, wherein the height of the locking slot is flush with the height of the projecting rib.

[0009] In a preferred embodiment, the limiting assembly is arranged between a pivot joint of the leg tube assembly and the tabletop, as well as between a pivot joint of the guide tube and the tabletop, and is located on one side of the guide tube. The offset between the limiting assembly and the guide tube prevents the guide tube and the limiting assembly from interfering with each other after the support tube has been inserted into the limiting assembly.

[0010] In a preferred embodiment, the leg tube assembly as a whole has a U-shape, and the support tube has a U-shape with two outwardly inclined sides, wherein two ends of the support tube are pivotally connected to two sides of the leg tube assembly. The U-shaped structures of the leg tube assembly and the support tube provide greater overall stiffness and stability compared to a one-piece tube construction.

[0011] In a preferred embodiment, the support tube is rotatably connected to the leg tube assembly and the guide tube, so that when the leg tube assembly is unfolded, the support tube is positioned in the limiting assembly under the influence of the leg tube assembly and the guide tube and maintains a fixed position.

[0012] In a preferred embodiment, one end of the guide tube is rotatably connected to the support tube via a sleeve, and the other end is rotatably connected to the tabletop via a support element.

[0013] In a preferred embodiment, the leg tube assembly includes an outer tube and inner tubes, wherein the outer tube has a U-shape and two inner tubes are inserted into two ends of the outer tube.

[0014] In an alternative embodiment, the leg tube assembly has a U-shape, with a cross piece arranged between the legs of the leg tube assembly, wherein one end of the support tube is rotatably hinged to the cross piece.

[0015] In the alternative embodiment, the end of the support tube can be provided with a further sleeve, wherein the further sleeve is rotatably connected to the cross piece.

[0016] In the alternative embodiment, the support tube and the guide tube can be rotatably connected to each other by a joint.

[0017] In the alternative embodiment, the guide tube can be positioned in the limiting assembly under the influence of the leg tube assembly and the support tube, and it retains a fixed position when the leg tube assembly is unfolded.

[0018] In a preferred embodiment, the outer tube is further provided with a locking element configured to maintain a relative position between the outer tube and the inner tubes.

[0019] Compared to the prior art, the present disclosure has the following advantageous effects: The support tube of the present invention is connected to a guide tube pivotally connected to the table top, the guide tube defining a movement position for the support tube so that, when the leg tube assembly is unfolded, the support tube is guided in such a way that it slides smoothly into the limiting assembly, thereby eliminating the inconvenience of inserting the support tube into the limiting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings, which are part of this revelation, serve to further illustrate it. The schematic representations and their descriptions serve to explain this revelation and do not constitute a limitation of it. Fig. 1 shows an overall structure according to the present disclosure; Fig. 2 shows section A in detail Fig. 1; Fig. Figure 3 shows a folding process of a leg tube assembly according to Fig. 1; Fig. Figure 4 shows a fully folded state of a leg tube assembly according to Fig. 1; Fig. Figure 5 shows in detail a boundary assembly of the structure according to the invention. Fig. Figure 6 shows a further embodiment of the overall structure according to the invention; Fig. Figure 7 shows a folding process of a leg tube assembly according to Fig. 6; Fig. Figure 8 shows a fully folded state of a leg tube assembly according to Fig. 6.

[0021] Reference symbols: 1. Tabletop; 2. Leg tube assembly; 21. Outer tube; 22. Inner tube; 23. Locking element; 24. Foot base; 25. Cross piece; 26. Additional sleeve; 3. Support tube; 4. Guide tube; 41. Sleeve; 42. Support element; 43. Joint; 5. Limiting knob; 51. Projecting rib; 52. Anti-slip rib; 6. Slotted block; 61. Limiting slot; and 62. Locking slot. DETAILED DESCRIPTION OF THE DESIGNS

[0022] It should be noted that the following detailed description serves only for illustration and is intended to further explain the present disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by average persons skilled in the field to which the present disclosure relates.

[0023] It should be noted that the terminology used here serves only to describe certain configurations and is not intended to limit the exemplary configurations of this disclosure. Unless the context clearly indicates otherwise, the singular forms used here also include the plural forms. Furthermore, it should be understood that the terms "comprise" and / or "include" in this description denote the presence of features, steps, processes, devices, components, and / or combinations thereof.

[0024] Furthermore, terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "above," "below," "inside," "clockwise," and "counterclockwise" indicate the orientation or positional relationships based on the orientation or position shown in the drawings. These terms are used solely for the purpose of simplifying the description and are not intended to indicate or imply that the devices or components must have a particular orientation or be designed and operated in a particular orientation. Therefore, these terms should not be understood as limiting the present disclosure.

[0025] Furthermore, the terms “firstly” and “secondly” are used for descriptive purposes only and are not to be understood as indicating relative importance or as an implicit reference to the number of the technical features mentioned. Therefore, a feature defined as “firstly” or “secondly” may explicitly or implicitly include one or more features. Unless otherwise specified, the term “a multitude of” in the description of this disclosure refers to two or more, unless expressly limited otherwise.

[0026] Unless expressly stated otherwise or limited in this disclosure, the terms “install,” “connected,” “connection,” “fastening,” and the like are to be understood in a broad sense. For example, the terms may refer to a permanent connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection via an intermediate medium; and they may also refer to internal communication between two components. Those skilled in the art in this field may interpret the precise meaning of the foregoing terms in this disclosure according to the specific circumstances.

[0027] Unless expressly stated otherwise or limited in this disclosure, the arrangement of a first feature “on” or “below” a second feature can mean that the first and second features are either in direct contact or, while not in direct contact, are connected to each other via one or more intervening features. Furthermore, the indication that the first feature is “above”, “on”, or “over” the second feature includes both that the first feature is directly above or diagonally above the second feature and the simple indication that the first feature has a greater horizontal height than the second feature.The statement that the first feature is "below", "under" or "below" the second feature implies that the first feature is located directly below or diagonally below the second feature, or simply that the first feature has a lower horizontal height than the second feature.

[0028] The present disclosure will be explained in more detail below with reference to the attached drawings and specific embodiments.

[0029] As in the Fig. 1, Fig. 2, Fig. 3 to Fig. As shown in Figure 4, a folding table includes a tabletop 1, a leg tube assembly 2, a support tube 3, a guide tube 4 and a boundary assembly, wherein the boundary assembly is attached to a rear surface of the tabletop 1, the leg tube assembly 2 and the guide tube 4 are spaced apart from each other on the rear surface of the tabletop 1 and rotatably connected to the tabletop 1, and the support tube 3 is rotatably connected to the leg tube assembly 2 and the guide tube 4, such that when the leg tube assembly 2 is unfolded, the support tube 3 is positioned in the boundary assembly under the action of the leg tube assembly 2 and the guide tube 4 and maintains a fixed position.

[0030] The leg tube assembly 2 has an overall U-shape, and the support tube 3 has a U-shape with two outwardly inclined sides, with two ends of the support tube 3 being hinged to the two sides of the leg tube assembly 2. The U-shaped structures of the leg tube assembly 2 and the support tube 3 provide greater overall stiffness and stability compared to a one-piece tube construction.

[0031] The limiting assembly is arranged between the pivot point of the leg tube assembly 2 and the tabletop 1, and between the pivot point of the guide tube 4 and the tabletop 1. One end of the guide tube 4 is rotatably connected to the support tube 3 via a sleeve 41, while the other end is rotatably connected to the tabletop 1 via a support element 42. The connection between the sleeve 41 and the support tube 3 is located on one side of the limiting assembly. The limiting assembly is offset relative to the guide tube, thus preventing the guide tube 4 and the limiting assembly from interfering with each other after the support tube 3 has entered the limiting assembly.

[0032] In the present disclosure, the leg tube assembly 2, the support tube 3, and the guide tube 4 form an interconnected structure. When the leg tube assembly 2 is unfolded, the support tube 3 and the guide tube 4 move together, with the support tube 3 positioned on one side of the pivot joint between the guide tube 4 and the tabletop 1. The support tube 3 is inserted into the boundary assembly according to the rotational path of the guide tube 4. When the leg tube assembly 2 is folded, the support tube 3 and the guide tube 4 again move together, with the support tube 3 moving to the opposite side of the pivot joint between the guide tube 4 and the tabletop 1 according to the rotational path of the guide tube 4. The leg tube assembly 2, the support tube 3, and the guide tube 4 are all arranged in close proximity to the tabletop 1.

[0033] As in Fig. As shown in Figure 5, the limiting assembly includes a limiting knob 5 and a slotted block 6. The slotted block 6 is attached to the tabletop 1, and suitable fastening methods include adhesive bonding, screw fastening, or similar. A limiting slot 61 is formed in the slotted block 6, configured to receive the support tube 3. The limiting knob 5 is rotatably connected to an end face of the slotted block 6, and by rotating the limiting knob 5, at least part of the limiting slot 61 can be covered. According to the above design, the limiting slot 61 is covered by the limiting knob 5, thus preventing the support tube 3 from disengaging from the limiting slot 61, thereby preventing accidental folding of the folding table and improving the overall stability of the table.

[0034] At least one end of the limiting knob 5 is further provided with a projecting rib 51. A locking slot 62 is also formed on a side wall of the limiting slot 61, and rotation of the limiting knob 5 causes the projecting rib 51 to engage in or disengage from the locking slot 62. The two side walls of the limiting slot 61 can be of the same height. In this case, the projecting rib 51 must be arranged on a lower section of the limiting knob 5, or the limiting knob 5 can be designed in a curved shape. The interaction between the locking slot 62 and the projecting rib 51 prevents the support tube 3 from disengaging from the limiting slot 61, reduces the forces acting on the rotatable section of the limiting knob 5, improves the smooth operation of the limiting knob 5, and extends the service life of the limiting knob 5.

[0035] In this embodiment, a side wall on one side of the limiting slot 61 is higher than a side wall on the other side of the limiting slot 61. The limiting knob 5 is rotatably mounted on an end face on a lower side, and the locking slot 62 is formed in a side wall of a higher side, the height of the locking slot 62 being flush with the height of the projecting rib 51. In this configuration, the projecting rib 51 of the limiting knob 5 can extend directly from a side face, providing a relatively simpler and easier-to-manufacture design. When the limiting knob 5 locks the support tube 3 in the limiting slot 61, the distance between the limiting knob 5 and the support tube 3 is reduced, thus providing more stable support.

[0036] One side surface of the limit knob 5 is further provided with several longitudinally spaced anti-slip ribs 52. This design increases the contact area between the finger and the rotary knob during operation, prevents the finger from slipping, and improves ease of use.

[0037] The leg tube assembly includes an outer tube 21 and two inner tubes 22; the outer tube 21 is U-shaped, and the two inner tubes 22 are each inserted into the two ends of the outer tube 21. The outer tube 21 is further provided with a locking element 23 configured to maintain a relative position between the outer tube 21 and the inner tubes 22. One end of each inner tube 22 is also provided with a freely rotatable foot pedestal 24.

[0038] The leg tube assembly 2 features a telescopic structure, allowing the overall height of the folding table to be adjusted to different requirements. Combined with the freely rotating bases, the folding table can be used not only on flat surfaces but also on various uneven surfaces, thus offering a wider range of applications.

[0039] As in the Fig. 6, Fig. 7 to Fig. As shown in Figure 8, a folding table comprises a tabletop 1, a leg tube assembly 2, a support tube 3, a guide tube 4 and a limiting assembly, wherein the limiting assembly is attached to a rear side of the tabletop 1, the leg tube assembly 2 and the guide tube 4 are spaced apart from each other on the rear side of the tabletop 1 and rotatably connected to the tabletop 1, and the support tube 3 is rotatably connected to the leg tube assembly 2 and the guide tube 4, such that when the leg tube assembly 2 is unfolded, the guide tube 4 is positioned in the limiting assembly under the action of the leg tube assembly 2 and the support tube 3 and maintains a fixed position.

[0040] The leg tube assembly 2 has a general U-shape, with a cross member 25 arranged between the legs of the outer tubes 21 of the leg tube assembly 2. One end of the support tube 3 is rotatably hinged to the cross member 25 via a further sleeve 26, which is attached to the end of the support tube 3 and rotatably connected to the cross member 25. The support tube 3 and the guide tube 4 are rotatably connected to each other via a joint 43. The U-shaped structures of the leg tube assembly 2 offer higher overall stiffness and stability compared to a single tube structure.

[0041] The limiting assembly is arranged between the pivot point of the leg tube assembly 2 and the tabletop 1, and between the pivot point of the guide tube 4 and the tabletop 1. One end of the guide tube 4 is rotatably connected to the support tube 3 via the joint 43, while the other end is rotatably connected to the tabletop 1 via a support element 42. The connection between the joint 43 and the support tube 3 is located on one side of the limiting assembly. The limiting assembly is offset relative to the guide tube 4, thus preventing a collision between the guide tube 4 and the limiting assembly after the support tube has entered the limiting assembly.

[0042] In the present disclosure, the leg tube assembly 2, the support tube 3, and the guide tube 4 form a coupled structure. When the leg tube assembly 2 is unfolded, the support tube 3 and the guide tube 4 move in coupled motion, with the support tube 3 positioned on one side of the pivot point between the guide tube 4 and the tabletop 1. The support tube 3 enters the boundary assembly according to a rotational path of the guide tube 4. When the leg tube assembly 2 is folded, the support tube 3 and the guide tube 4 again move in coupled motion, with the support tube 3 moving to the opposite side of the pivot point between the guide tube 4 and the tabletop 1 according to the rotational path of the guide tube 4. The leg tube assembly 2, the support tube 3, and the guide tube 4 are all in close contact with the tabletop 1.

[0043] The folding table is equipped with a limiting assembly, as shown in Fig. 5 shown. In the embodiment according to the Fig. 6, Fig. 7 to Fig. 8. The limiting slot 61 is covered by the use of the limiting knob 5, thus preventing the guide tube 4 from disengaging from the limiting slot 61. This prevents accidental folding of the folding table and improves the overall stability of the table. The interaction between the locking slot 62 and the projecting rib 51 prevents the guide tube 4 from disengaging from the limiting slot 61, reduces the forces acting on a rotatable section of the limiting knob 5, improves the ease of rotation of the limiting knob 5, and extends the service life of the limiting knob 5.

[0044] The operating process of the present disclosure is as follows: When unfolded, the leg tube assembly 2 is pulled outwards, whereby the support tube 3 and the guide tube 4 move together. The support tube 3 is supported in the limiting slot 61 of the limiting assembly according to a rotational path of the guide tube 4. The limiting knob is turned so that the protruding rib of the limiting knob engages in the locking slot, thus completing the stable support of the folding table.

[0045] When folding, the limiting knob 5 is rotated so that the protruding rib disengages from the locking slot and is rotated into a position where the limiting knob 5 does not block the limiting slot 61 (in the present embodiment, the support tube can move freely in and out of the limiting slot when the limiting knob is parallel to the limiting slot). The leg tube assembly 2 is folded inwards, and the support tube 3 and the guide tube 4 move together. The leg tube assembly 2 is positioned close to the tabletop 1, and the support tube 3 and a pivoting element are positioned close to the tabletop 1 along a pivot path.

[0046] According to the present disclosure, due to the connection structure between the support tube 3 and the guide tube 4, no alignment between the support tube 3 and the limiting assembly is required. When the leg tube assembly 2 is folded, the support tube 3 and the guide tube 4 move together, thereby inserting the support tube 3 into the limiting assembly. The entire process is simple and practical, and stability has been improved.

[0047] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples" indicate that certain features, structures, materials, or properties described in connection with such an embodiment or example are included in at least one embodiment or example of the present disclosure. In this description, the schematic representations of the aforementioned terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although the above descriptions and configurations of the present disclosure are presented, it should be noted that these configurations serve only as illustrations and are not to be interpreted as limitations of the present disclosure. Variations, modifications, substitutions, and changes can be made by a person skilled in the art within the scope of the present disclosure without departing from the fundamental idea and spirit of the present disclosure. Any simple modification, equivalent change, or adaptation of the above configurations, made in accordance with the technical core of the present disclosure, falls within the scope of the technical solutions of the present disclosure.

Claims

[1] Folding table, characterized by , that it comprises a table top (1), a leg tube assembly (2), a support tube (3), a guide tube (4) and a boundary assembly, wherein the boundary assembly is attached to a rear surface of the table top (1), the leg tube assembly (2) and the guide tube (4) are spaced apart from each other on the rear surface of the table top (1) and rotatably connected to the table top (1), and the support tube (3) is rotatably connected to the guide tube (4) such that when the leg tube assembly (2) is unfolded, the support tube (3) or the guide tube (4) is positioned in the boundary assembly under the action of the leg tube assembly (2) and the guide tube (4) or the support tube (3) and maintains a fixed position. [2] Folding table according to claim 1, characterized in that the leg tube assembly (2), the support tube (3) and the guide tube (4) are connected to each other in such a way that the guide tube (4) is located on two sides of a pivot joint between the guide tube (4) and the table top (1) when the leg tube assembly (2) is folded out or in. [3] Folding table according to claim 1 or 2, characterized in that the limiting assembly comprises a limiting knob (5) and a slotted block (6), wherein a limiting slot (61) is formed on the slotted block (6) which is configured to receive the support tube (3) or the guide tube (4), wherein the limiting knob (5) is rotatably connected to an end face of the slotted block (6), and a rotation of the limiting knob (5) covers at least a part of the limiting slot (61). [4] Folding table according to claim 3, characterized in that at least one end of the limiting knob (5) is further provided with a projecting rib (51), a locking slot (62) is further formed on a side wall of the limiting slot (61) and a rotation of the limiting knob (5) causes the projecting rib (51) to engage in or disengage from the locking slot (62). [5] Folding table according to claim 4, characterized in that a side wall of one side of the limiting slot (61) is higher than a side wall of the other side of the limiting slot, the limiting knob (5) is rotatably arranged on an end face on a lower side, and the locking slot (62) is formed in a side wall of a higher side, wherein the height of the locking slot (62) is flush with the height of the projecting rib (51). [6] Folding table according to one of claims 1 to 5, characterized in that the limiting assembly is arranged between a pivot joint of the leg tube assembly (2) and the table top (1) and a pivot joint of the guide tube (4) and the table top (1) and is located on one side of the guide tube (4). [7] Folding table according to one of claims 1 to 6, characterized in that the leg tube assembly (2) as a whole has a U-shape and the support tube (3) has a U-shape with two outwardly inclined sides, wherein the two ends of the support tube (3) are pivotally connected to two sides of the leg tube assembly (2). [8] Folding table according to any one of claims 1 to 7, characterized by, that the support tube (3) is rotatably connected to the leg tube assembly (2) and the guide tube (4), so that when the leg tube assembly (2) is unfolded, the support tube (3) is positioned in the limiting assembly under the influence of the leg tube assembly (2) and the guide tube (4) and maintains a fixed position. [9] The folding table according to any one of claims 1 to 6, characterized by , that the leg tube assembly (2) has a U-shape, wherein a cross piece (25) is arranged between the legs of the leg tube assembly (2), wherein one end of the support tube (3) is rotatably hinged to the cross piece (25). [10] Folding table according to claim 9, characterized by , that the end of the support tube (3) is provided with a further sleeve (26), wherein the further sleeve (26) is rotatably connected to the cross piece (25). [11] The folding table according to claim 9 or 10, characterized by, that the support tube (3) and the guide tube (4) are rotatably connected to each other by a joint (43). [12] Folding table according to any one of claims 9 to 11, characterized by , that the guide tube (4) is positioned in the limiting assembly under the influence of the leg tube assembly (2) and the support tube (3) and maintains a fixed position when the leg tube assembly (2) is unfolded. [13] Folding table according to one of claims 1 to 8, characterized in that one end of the guide tube (4) is rotatably connected to the support tube (3) via a sleeve (41) and the other end is rotatably connected to the table top (1) via a support element (42). [14] Folding table according to one of claims 1 to 13, characterized in that the leg tube assembly comprises an outer tube (21) and inner tubes (22), the outer tube (21) has a U-shape and two inner tubes (22) are each inserted into the two ends of the outer tube (21). [15] Folding table according to claim 14, characterized in that the outer tube (21) is further provided with a locking element (23) configured to maintain a relative position between the outer tube (21) and the inner tubes (22).

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