Folding table

Abstract

A folding table comprises a foldable table frame and a table top supported above the table frame, and the table frame comprises four supporting rods distributed at four corners of a rectangle; the supporting rod is a telescopic sleeve and comprises a telescopic fixing piece, an outer pipe and an inner pipe arranged in the outer pipe in a sleeved mode, the telescopic fixing piece is located at the upper end of the outer pipe, the upper end of the inner pipe fixedly protrudes out of the upper end of the outer pipe, the inner pipe extends upwards relative to the outer pipe, and the table top is supported at the upper end of the inner pipe. At least one crossed supporting rod group comprising two crossed supporting rods which are hinged in a crossed manner is arranged between the adjacent supporting rods; each outer pipe is sleeved with a sliding connecting piece below the corresponding telescopic fixing piece, and the sliding stroke of each sliding connecting piece is from the lower end pin of the corresponding outer pipe to the corresponding telescopic fixing piece. And two upper ends and lower ends, close to the supporting rods, of the crossed supporting rod groups between the adjacent supporting rods are hinged to the upper ends of the inner pipes located on the two sides and the sliding connecting pieces of the outer pipes located on the two sides correspondingly. Therefore, the folding table is adjustable in height, good in stability and convenient to store.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and more specifically to a folding table. Background Technology

[0002] Folding tables, due to their foldable nature, take up little space when folded and are easy to store, making them especially popular with users who need outdoor use. There are many types of folding tables, such as those with a separate tabletop and frame design, where the tabletop is attached to the unfolded frame when in use.

[0003] With the rise of outdoor sports, people's demand for folding tables has gradually increased. Currently, folding tables on the market generally have support rods at the four corners of the tabletop for support. In order to adapt to more terrains and usage needs, folding tables need to be height-adjustable. Therefore, telescopic structures are generally provided on the support rods at the four corners of the folding table to facilitate users in adjusting the height of the folding tabletop.

[0004] In addition, to enhance the stability of folding tables during use, cross braces are usually installed between adjacent support rods to provide auxiliary support and facilitate folding. When folding the table, one end of the cross brace slides on the support rod, reducing the cross angle of the cross braces and thus achieving folding.

[0005] The number of cross braces between adjacent support rods can be set to one, two, or more groups depending on the distance between the support rods (or the length and width of the tabletop). This addresses the issue that when the distance between two support rods is large, a single group of cross braces may result in cross braces that are too long, support rods that are not long enough, or cross braces with too short a sliding stroke, preventing the cross braces from fully folding when the table is folded. When the folding table support rods have a telescopic structure, the positioning device for the telescopic structure is usually located near the lower end of the support rod. This not only requires the user to squat down to adjust the height, making height adjustment inconvenient, but it can also easily interfere with the sliding stroke of the cross braces, or shorten the sliding stroke, potentially increasing the folded volume of the table, or requiring the cross braces to be removed and stored separately. Utility Model Content

[0006] The purpose of this invention is to provide a folding table that is height-adjustable, stable, and easy to store.

[0007] To achieve the above objectives, this utility model provides a folding table, including a foldable table frame and a tabletop supported above the table frame. The table frame includes four support rods distributed at the four corners of a rectangle.

[0008] The support rod is a telescopic sleeve, including a telescopic fixing component, an outer tube, and an inner tube sleeved inside the outer tube. The telescopic fixing component is located at the upper end of the outer tube, and the upper end of the inner tube is fixedly protruding from the upper end of the outer tube. When the support rod is extended, the inner tube extends upward relative to the outer tube. The telescopic fixing component is used to control the fixation or sliding of the inner tube relative to the outer tube. The tabletop is supported on the upper end of the inner tube.

[0009] At least one set of cross bracing is provided between adjacent support rods. Each side of the table frame has at least one set of cross bracing, and the number of cross bracing sets on opposite sides is the same. A set of cross bracing includes two cross bracings that are hinged together at 1 / 2 of the rod body.

[0010] In the cross-bracing group between adjacent support rods, the two upper ends of the support rods are respectively hinged to the upper ends of the inner tubes on both sides and fixed to the parts protruding from the upper ends of the outer tubes. Each outer tube is fitted with a sliding connector below the telescopic fixing member. The sliding stroke of the sliding connector is from the lower end of the outer tube to the telescopic fixing member. In the cross-bracing group between adjacent support rods, the two lower ends of the support rods are respectively hinged to the sliding connectors of the outer tubes on both sides.

[0011] The upper end of each inner tube is hinged to the upper end of two different sets of cross braces, and the lower end of each sliding connector is hinged to the lower end of two different sets of cross braces.

[0012] Furthermore, at least two of the sides of the table frame that are facing each other have a set of cross bracing.

[0013] Furthermore, the tabletop includes a tabletop and two crossbars. The two crossbars are respectively located on one of the opposite sides of the upper end of the table frame. The tabletop is mounted between the two crossbars. The two ends of each crossbar are detachably mounted on the upper end of the inner tube on both sides of its respective side.

[0014] Furthermore, the tabletop is a foldable tabletop, comprising multiple long strips arranged side by side, which are connected sequentially by an elastic connecting rope. Each long strip has plugs at both ends, and the upper end of the crossbar has a slot along its length. The plugs are sequentially installed in the slots. Both ends of the crossbar have stoppers to prevent the tabletop ends from detaching outward. When the crossbar is mounted on the two inner tubes, the stoppers at both ends are located on the outside of the two inner tubes respectively.

[0015] Furthermore, each inner tube is fixedly fitted with a top connector at its upper end. The outer diameter of the top connector is larger than the inner diameter of the outer tube. The top connector protrudes from the upper end of the outer tube. A connecting part is provided on the top surface of the top connector. The crossbar is connected to the inner tube through the connecting part. Two upper hinged lugs protrude from the side of the top connector. The upper ends of two cross support rods located on different sides of the table frame are respectively hinged to the two upper hinged lugs of each top connector.

[0016] Furthermore, the sliding connector is slidably fitted onto the outer tube, and the side of the sliding connector is provided with two lower hinge lugs. The lower ends of two cross support rods located on different sides of the table frame are respectively hinged to the two lower hinge lugs of each sliding connector.

[0017] Furthermore, the table frame also includes at least one top support rod, which is horizontally supported directly below the tabletop. Each end of the top support rod is detachably connected to a set of auxiliary support rods. Each set of auxiliary support rods is located on two opposite sides of the table frame. Each set of auxiliary support rods includes two auxiliary support rods of the same length. The lower ends of each auxiliary support rod in the same set are hinged to the upper part of the intersection of the cross support rods in the same set on its side. The upper ends of the two auxiliary support rods in the same set are hinged to each other and detachably connected to the end of the top support rod.

[0018] Furthermore, each set of auxiliary support rods also includes a top support rod connector. The upper end of the top support rod connector has a U-shaped support groove for supporting the top support rod, and the lower end of the top support rod connector has a hinge groove for hinged connection of the upper ends of the two auxiliary support rods in the same set. The length of each auxiliary support rod is 1 / 4 of the length of the cross support rod it is connected to. The lower ends of each auxiliary support rod in the same set are hinged to the two cross support rods it is connected to at 1 / 4 of the rod body. A rhombus is formed between a set of auxiliary support rods and a set of cross support rods connected to them.

[0019] Furthermore, the telescopic fastener includes a fixing sleeve, a button, and multiple spring clips; the multiple spring clips are longitudinally distributed inside the inner tube, and each spring clip has a protrusion, with an inner hole on the inner tube wall corresponding to the position of each protrusion; the fixing sleeve is installed on the upper end of the outer tube, and the side of the fixing sleeve has a through hole for the protrusion of the spring clip to pass through, and the end face has an movable hole for the inner tube and the outer tube to pass through; the button is slidably fitted on the side of the fixing sleeve and is prevented from falling off by a snap-fit ​​mechanism, and the inner side of the button has a protrusion opposite to the through hole, with an outer hole on the outer tube corresponding to the position of the through hole.

[0020] Furthermore, the telescopic fixing component includes a locking sleeve, which includes an upper sleeve, a lower sleeve, and a locking screw. The lower sleeve is necked upward to form the upper sleeve. The lower sleeve is fitted onto the outer side of the upper end of the outer tube, and the upper sleeve is fitted onto the outer side of the inner tube. The locking screw includes a knob and a bolt with a nut at one end. The upper sleeve has a slit-like opening in the circumference. Two locking plates extend radially outward from the opening for the bolt to pass through. The nut and the knob are respectively located at both ends of the bolt and outside the two locking plates.

[0021] After adopting the above solution, the present invention has the following beneficial effects:

[0022] 1. There is at least one set of cross support rods connecting adjacent support rods, which has the effect of auxiliary support and makes the folding table more stable.

[0023] 2. The telescopic fixing component is located at the upper end of the outer tube. The sliding stroke of the sliding connector is from the lower end of the outer tube to the telescopic fixing component. Therefore, the vertical movement stroke of the lower end of the cross support rod is also from the lower end of the outer tube to the telescopic fixing component. Compared with the prior art, this utility model does not have the problem that the cross support rod group cannot be fully folded due to insufficient movement stroke, which makes it convenient for users to store the folding table.

[0024] 3. The telescopic fixing piece is located at the upper end of the outer tube, so when the user needs to adjust the height, there is no need to squat down to adjust it, making it convenient for the user to adjust the height of the folding table.

[0025] 4. This utility model also includes an auxiliary support rod assembly, which can further improve the stability of the folding table. Attached Figure Description

[0026] Figure 1 This is a schematic diagram (a) showing the unfolded form of the first embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the table frame structure according to the first embodiment of the present utility model.

[0028] Figure 3 This is a schematic diagram (II) showing the unfolded form of the first embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the desktop structure according to the first embodiment of the present utility model.

[0030] Figure 5 This is a schematic diagram of the folding of the first embodiment of the present invention.

[0031] Figure 6 This is an exploded view of the telescopic fixing member of the first embodiment of this utility model.

[0032] Figure 7 This is a cross-sectional view of the telescopic fixing member according to the first embodiment of this utility model.

[0033] Figure 8 This is a partial enlarged view of the telescopic fixing part in the second embodiment of this utility model.

[0034] Figure 9 This is an exploded view of the telescopic fixing member of the second embodiment of this utility model.

[0035] Explanation of icon numbers:

[0036] 1. Support rod; 11. Outer tube; 12. Inner tube; 13. Table leg;

[0037] 2 cross braces;

[0038] 3. Sliding connector; 31. Lower hinged lug;

[0039] 4. Top connector; 41. Upper hinge lug; 42. Connecting part;

[0040] 5. Desktop; 51. Tabletop; 511. Long strip; 512. Plug; 52. Crossbar; 521. Slot; 53. Stop;

[0041] 6. Top support rod; 61. Auxiliary support rod; 62. Top support rod connector; 621. Support groove; 622. Hinge groove;

[0042] 7. Fixing sleeve; 71. Through hole; 72. Movable hole; 73. Button; 731. Protrusion; 74. Spring snap; 741. Raised piece; 75. Outer hole; 76. Inner hole;

[0043] 8 Locking sleeve; 81 Upper sleeve; 811 Opening; 812 Locking plate; 82 Lower sleeve; 83 Locking screw; 831 Knob; 832 Bolt; 8321 Nut. Detailed Implementation

[0044] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0045] See Figures 1 to 7 The first embodiment of this utility model provides a folding table, including a foldable table frame and a tabletop 5 supported above the table frame. The table frame includes four support rods 1 distributed at the four corners of a rectangle.

[0046] The support rod 1 is a telescopic sleeve, including a telescopic fixing component, an outer tube 11, and an inner tube 12 sleeved inside the outer tube 11. The telescopic fixing component is located at the upper end of the outer tube 11, and the upper end of the inner tube 12 is fixedly protruding from the upper end of the outer tube 11. When the support rod 1 is extended, the inner tube 12 extends upward relative to the outer tube 11. The telescopic fixing component is used to control the fixing or sliding of the inner tube 12 relative to the outer tube 11. The tabletop 5 is supported on the upper end of the inner tube 12. Table legs 13 for contacting the ground are also provided at the lower end of the outer tube 11. Because the telescopic fixing component is located at the upper end of the outer tube 11, when the user needs to adjust the height, there is no need to squat down to adjust it, making it convenient for the user to adjust the height of the folding table.

[0047] A set of cross bracing is provided between adjacent support rods 1, that is, each side of the table frame has a set of cross bracing, and a set of cross bracing includes two cross bracing 2 that are hinged at 1 / 2 of the rod body.

[0048] In this embodiment, a cross-bracing group is used to support the table between two adjacent support rods 1, which has an auxiliary support effect and makes the folding table more stable.

[0049] The upper ends of each set of cross bracing rods are respectively hinged to the portions of the inner tubes 12 located on both sides that protrude from the upper ends of the outer tubes 11. Each outer tube 11 has a sliding connector 3 fitted below the telescopic fixing member. The sliding stroke of the sliding connector 3 is from the lower end of the outer tube 11 to the telescopic fixing member. The lower ends of each set of cross bracing rods are respectively hinged to the sliding connectors 3 of the outer tubes 11 located on both sides. The upper ends of two different sets of cross bracing rods 2 are hinged to the upper ends of each inner tube 12, and the lower ends of two different sets of cross bracing rods 2 are hinged to each sliding connector 3.

[0050] In this embodiment, since the telescopic fixing member is set at the upper end of the outer tube 11, the sliding stroke of the sliding connector 3 is from the lower end of the outer tube 11 to the telescopic fixing member. Therefore, the vertical movement stroke of the lower end of the cross support rod 2 is also from the lower end of the outer tube 11 to the telescopic fixing member. Compared with the prior art, this embodiment does not have the problem that the cross support rod group cannot be fully folded due to insufficient movement stroke, which makes it convenient for users to store the folding table.

[0051] For details, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 In this embodiment, a top connector 4 is provided on the upper end of each inner tube 12 fixed sleeve 7. The outer diameter of the top connector 4 is larger than the inner diameter of the outer tube 11, and the top connector 4 protrudes from the upper end of the outer tube 11 (e.g., Figure 3 When the support rod 1 is adjusted to its lowest height, the part of the inner tube 12 with the top connector 4 protrudes from the upper end of the outer tube 11 and is used to connect the tabletop 5. The top surface of the top connector 4 has a connecting part 42 for connecting the tabletop 5. The side of the top connector 4 has two upper hinge lugs 41 protruding. The upper ends of two cross support rods 2 located on different sides of the table frame are respectively hinged to the two upper hinge lugs 41 of each top connector 4.

[0052] The sliding connector 3 is slidably sleeved on the outer tube 11. Its specific structure includes a sliding sleeve and two lower hinge lugs 31. The two lower hinge lugs 31 are protruding from the side of the sliding sleeve at intervals. The lower ends of two cross support rods 2 located on different sides of the table frame are respectively hinged to the two lower hinge lugs 31 of each sliding connector 3.

[0053] This embodiment of the table frame also includes a top support rod 6 that spans across and supports the center of the tabletop 5. Specifically, the tabletop 5 in this embodiment is rectangular, and the top support rod 6 is parallel to any edge of the tabletop 5 and located at the very center of the tabletop 5. Each end of the top support rod 6 is detachably connected to a set of auxiliary support rods 61. Each set of auxiliary support rods 61 is located on two opposite sides of the table frame. Each set of auxiliary support rods 61 includes two auxiliary support rods 61 of the same length. The lower ends of each auxiliary support rod 61 in the same set are hinged to the upper part of the intersection of two intersecting support rods 2 on its respective side. Each set of auxiliary support rods 61 also includes a top support rod connector 62. The upper end of the top support rod connector 62 has a U-shaped support groove 621 for supporting the top support rod 6, and the lower end of the top support rod connector 62 has a hinge groove 622 for hinged connection of the upper ends of the two auxiliary support rods 61 in the same set. The upper ends of the two auxiliary support rods 61 in the same group are respectively hinged to both sides of the hinge groove 622, thereby achieving mutual hinge. The top support rod 6 is detachably supported on the support groove 621, thereby achieving that the two auxiliary support rods 61 in the same group are detachably connected to the end of the top support rod 6.

[0054] In this embodiment, the length of each auxiliary support rod 61 is 1 / 4 of the length of each cross support rod 2. The lower ends of each auxiliary support rod 61 in the same group are hinged to the two cross support rods 2 on their respective sides at 1 / 4 of the rod body. A rhombus is formed between a group of auxiliary support rods 61 and a group of cross support rods 2 connected to them.

[0055] With the help of the top support rod 6 and the auxiliary support rod 61, this embodiment can further improve the stability of the table frame itself and the stability of the table frame supporting the desktop 5, thereby making the folding table more stable. In other embodiments, two top support rods 6 can be provided, which are arranged in a cross shape and perpendicularly intersecting each other. Each top support rod 6 has an auxiliary support rod 61 connected to both ends to provide auxiliary support.

[0056] See Figure 4In this embodiment, the desktop 5 includes a tabletop 51 and two crossbars 52. The two crossbars 52 are respectively located on one of the opposite sides of the upper end of the table frame. The tabletop 51 is supported between the two crossbars 52. The two ends of each crossbar 52 are detachably mounted on the upper end of the inner tube 12 on both sides of its respective side. The tabletop 51 is a foldable tabletop 51, which includes multiple long strips 511 arranged side by side. The multiple long strips 511 are connected in sequence by an elastic connecting rope. Each long strip 511 has a plug 512 at both ends. The upper half of the crossbar 52 is L-shaped, that is, the upper end of the crossbar 52 has a groove 521 along the length direction. The plugs 512 are sequentially installed in the groove 521. Both ends of the crossbar 52 are provided with a stopper 53 to prevent the end of the tabletop 51 from falling outward. When the crossbar 52 is mounted on the two inner tubes 12, the crossbar 52 and the inner tubes 12 are connected by the connecting part 42 of the top connector 4. The connecting part 42 of the top connector 4 is U-shaped and has a protruding rod in the center. The end of the crossbar 52 is provided with a small hole for the protruding rod to be inserted. When the crossbar 52 is embedded in the U-shaped groove, the protruding rod is inserted into the small hole to achieve connection. At this time, the stoppers 53 at both ends of the crossbar 52 are located on the outside of the two inner tubes 12 respectively, which can play a locking role and prevent the tabletop 5 from sliding on the table frame.

[0057] Further reading Figure 5 In this embodiment, when the table frame is folded, the support rod 1 extends, and the sliding connector 3 slides to the bottom of the outer tube 11. This allows the two cross rods 2 of each set of cross rods to fold to a smaller crossing angle, resulting in a smaller folded volume of the entire table frame without interference. The main advantage of this embodiment is that it ensures the stability of each set of cross rods 2 while avoiding interference with the folding of the cross rods 2 through the design of the telescopic fixing parts. It also provides good stability and convenient storage. In practical applications, the lengths of the inner tube 12 and outer tube 11 of the support rod 1, as well as the lengths of the cross rods 2, can be designed and modified according to the size requirements of different folding tables.

[0058] See Figure 6 , Figure 7In this embodiment, the height adjustment of the folding table is stepped. The telescopic fixing component includes a fixing sleeve 7, a button 73, and multiple spring buckles 74. The multiple spring buckles 74 are longitudinally distributed inside the inner tube 12. Each spring buckle 74 has a protrusion 741, and the inner tube 12 wall has an inner hole 76 corresponding to the position of each protrusion 741. The fixing sleeve 7 is installed on the upper end of the outer tube 11. The side of the fixing sleeve 7 has a through hole 71 for the protrusion 741 of the spring buckle 74 to pass through, and the end face has a through hole 76 for the inner tube 12 to pass through. The outer tube 11 has an active hole 72 through which it passes; the button 73 is fitted on the side of the fixed sleeve 7 and can be elastically pressed, and is prevented from falling off by a buckle mechanism (not shown). The inner side of the button 73 is provided with a protrusion 731 that is opposite to the through hole 71. The outer tube 11 has an outer hole 75 corresponding to the position of the through hole 71. Pressing the button 4 can press the protrusion 741 protruding on the outer hole 75 and the through hole 71 inward and retract it into the inner tube 12, releasing the positioning effect of the spring buckle 74 on the inner tube 12.

[0059] The above-described structure for positioning the telescopic sleeve via the spring snap 74 is existing technology and will not be elaborated further here. With the help of the above structure, the inner tube 12 of the folding table in this embodiment can be designed with multiple inner holes 76 and spring snaps 74 at equal intervals. When adjusting the height, the user can manually press the spring snap 74 and pull the inner tube 12 upward. After reaching the expected height, the inner hole 76, i.e., the spring snap 74, will correspond to the outer hole 75 and the through hole 71, and the protrusion 741 will protrude through the through hole 71, thereby achieving the height positioning of the folding table.

[0060] See Figure 8 , Figure 9 This is the second embodiment of the present invention, which differs from the first embodiment only in the structure of the telescopic fixing component. The height adjustment of the folding table in the second embodiment is stepless. The telescopic fixing component includes a locking sleeve 8, which includes an upper sleeve 81, a lower sleeve 82, and a locking screw 83. The lower sleeve 82 is necked upward to form the upper sleeve 81. The lower sleeve 82 is fitted on the outer side of the upper end of the outer tube 11, and the upper sleeve 81 is fitted on the outer side of the inner tube 12. The locking screw 83 includes a knob 831 (the inner side of the knob 831 is provided with an internal thread that corresponds to the thread of the bolt 832) and a bolt 832 with a nut 8321 at one end. The upper sleeve 81 has a slit-like opening 811 in the circumference. Two locking pieces 812 extend radially outward from the opening 811 for the bolt 832 to pass through. The nut 8321 and the knob 831 are respectively located at both ends of the bolt 832 and outside the two locking pieces 812.

[0061] When the height of the folding table needs to be adjusted, rotating the knob 831 outwards widens the opening 811 of the upper sleeve 81, loosening the upper sleeve 81 from the inner tube 12. This allows the inner tube 12 to be pulled, adjusting the relative position between the inner tube 12 and the outer tube 11 to achieve height adjustment. Once the desired height is reached, rotating the knob 831 inwards brings the two locking pieces 812 of the upper sleeve 81 closer together, reducing the opening 811 and ensuring a tight fit between the upper sleeve 81 and the inner tube 12, thus fixing the inner tube 12 and achieving height positioning of the folding table. This structure is existing technology and will not be described in further detail here.

[0062] In addition to the two embodiments described above, in other embodiments, at least one set of cross support rods can be provided between adjacent support rods 1, and each side of the table frame has at least one set of cross support rods and the number of cross support rods on opposite sides is the same. In this way, the auxiliary support structure of the cross support rods can be applied to folding tables with a long side length of tabletop 5.

[0063] When the tabletop 5 is rectangular, for easy folding, two sets of interlocking cross-bracing rods can be installed on the side with the long side, and one set of cross-bracing rods can be installed on the side with the short side. In this case, the two upper ends of the two cross-bracing rods on the long side, which are closer to the support rod 1, are respectively hinged to the part of the inner tube 12 located on both sides that protrudes from the upper end of the outer tube 11. The two lower ends of the two cross-bracing rods are respectively hinged to the sliding connectors 3 of the outer tube 11 located on both sides. The adjacent upper ends of the two cross-bracing rods can be hinged to a top connector 4 and then supported under the crossbar 52. The adjacent lower ends of the two cross-bracing rods are also connected to each other to achieve interlocking folding.

[0064] Based on the above structure, if a top support rod 6 and an auxiliary support rod 61 are to be installed, two top support rods 6 parallel to the short side can be installed, respectively spanning and supporting the cross support rods arranged opposite each other on the two long side sides, directly above the intersection of the cross support rods. The auxiliary support rod 61 and the cross support rod 2 are hinged one-to-one in the same manner as in other embodiments. Alternatively, a single top support rod 6 parallel to the long side can be installed, spanning and supporting the cross support rods arranged opposite each other on the two short side sides, directly above the intersection of the cross support rods. The auxiliary support rod 61 and the cross support rod 2 are hinged one-to-one in the same manner.

[0065] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A folding table, comprising a foldable table frame and a tabletop supported above the table frame, the table frame including four support rods distributed at the four corners of a rectangle, characterized in that: The support rod is a telescopic sleeve, including a telescopic fixing component, an outer tube, and an inner tube sleeved inside the outer tube. The telescopic fixing component is located at the upper end of the outer tube, and the upper end of the inner tube is fixedly protruding from the upper end of the outer tube. When the support rod is extended, the inner tube extends upward relative to the outer tube. The telescopic fixing component is used to control the fixation or sliding of the inner tube relative to the outer tube. The tabletop is supported on the upper end of the inner tube. At least one set of cross bracing is provided between adjacent support rods. Each side of the table frame has at least one set of cross bracing, and the number of cross bracing sets on opposite sides is the same. A set of cross bracing includes two cross bracings that are hinged together at 1 / 2 of the rod body. In the cross-bracing group between adjacent support rods, the two upper ends of the support rods are respectively hinged to the upper ends of the inner tubes on both sides and fixed to the parts protruding from the upper ends of the outer tubes. Each outer tube is fitted with a sliding connector below the telescopic fixing member. The sliding stroke of the sliding connector is from the lower end of the outer tube to the telescopic fixing member. In the cross-bracing group between adjacent support rods, the two lower ends of the support rods are respectively hinged to the sliding connectors of the outer tubes on both sides. The upper end of each inner tube is hinged to the upper end of two different sets of cross braces, and the lower end of each sliding connector is hinged to the lower end of two different sets of cross braces.

2. A folding table according to claim 1, characterized in that, At least two of the sides of the table frame that are facing each other have a set of cross bracing.

3. A folding table according to claim 1 or 2, characterized in that, The tabletop includes a tabletop and two crossbars. The two crossbars are respectively located on one of the opposite sides of the upper end of the table frame. The tabletop is placed between the two crossbars. The two ends of each crossbar are detachably mounted on the upper end of the inner tube on both sides of its respective side.

4. A folding table according to claim 3, characterized in that, The tabletop is foldable and consists of multiple long strips arranged side by side. These strips are connected sequentially by an elastic connecting rope. Each strip has plugs at both ends. The upper end of the crossbar has a slot along its length, and the plugs are sequentially installed in the slot. Both ends of the crossbar have stoppers to prevent the tabletop ends from coming out. When the crossbar is mounted on two inner tubes, the stoppers at both ends are located on the outside of the two inner tubes.

5. A folding table according to claim 3, characterized in that, Each inner tube is fixedly fitted with a top connector at its upper end. The outer diameter of the top connector is larger than the inner diameter of the outer tube. The top connector protrudes from the upper end of the outer tube. A connecting part is provided on the top surface of the top connector. The crossbar is connected to the inner tube through the connecting part. Two upper hinged lugs protrude from the side of the top connector. The upper ends of two cross support rods located on different sides of the table frame are respectively hinged to the two upper hinged lugs of each top connector.

6. A folding table according to claim 1 or 2, characterized in that, The sliding connector is slidably fitted onto the outer tube. The sliding connector has two lower hinge lugs protruding from its side. The lower ends of two cross support rods located on different sides of the table frame are respectively hinged to the two lower hinge lugs of each sliding connector.

7. A folding table according to claim 2, characterized in that, The table frame also includes at least one top support rod, which is horizontally supported directly under the tabletop. Each end of the top support rod is detachably connected to a set of auxiliary support rods. Each set of auxiliary support rods is located on two opposite sides of the table frame. Each set of auxiliary support rods includes two auxiliary support rods of the same length. The lower ends of each auxiliary support rod in the same set are hinged to the upper part of the intersection of the cross support rods in the same set on its side. The upper ends of the two auxiliary support rods in the same set are hinged to each other and detachably connected to the end of the top support rod.

8. A folding table according to claim 7, characterized in that, Each set of auxiliary support rods also includes a top support rod connector. The top support rod connector has a U-shaped support groove at its upper end for supporting the top support rod, and a hinge groove at its lower end for hinged connection of the upper ends of the two auxiliary support rods in the same set. The length of each auxiliary support rod is 1 / 4 of the length of the cross support rod it is connected to. The lower ends of each auxiliary support rod in the same set are hinged to the two cross support rods it is connected to at 1 / 4 of the rod length. A rhombus is formed between a set of auxiliary support rods and a set of cross support rods connected to them.

9. A folding table according to claim 1 or 2, characterized in that, The telescopic fastener includes a fixing sleeve, a button, and multiple spring clips. The multiple spring clips are longitudinally distributed inside the inner tube, and each spring clip has a protrusion. The inner tube wall has an inner hole corresponding to the position of each protrusion. The fixing sleeve is installed on the upper end of the outer tube. The side of the fixing sleeve has a through hole for the protrusion of the spring clip to pass through, and the end face has an movable hole for the inner tube and the outer tube to pass through. The button is fitted on the side of the fixing sleeve. The inner side of the button has a protrusion opposite to the through hole, and the outer tube has an outer hole corresponding to the position of the through hole.

10. A folding table according to claim 1 or 2, characterized in that, The telescopic fixing component includes a locking sleeve, which includes an upper sleeve, a lower sleeve, and a locking screw. The lower sleeve is necked upward to form the upper sleeve. The lower sleeve is fitted on the outer side of the upper end of the outer tube, and the upper sleeve is fitted on the outer side of the inner tube. The locking screw includes a knob and a bolt with a nut at one end. The upper sleeve has a slit-like opening in the circumference. Two locking plates extend radially outward from the opening for the bolt to pass through. The nut and the knob are respectively located at both ends of the bolt and outside the two locking plates.

Images