A table frame and a lifting table

Abstract

The utility model relates to the technical field of furniture, disclose a table frame and lift table, the table frame includes first support frame and telescopic link component, first support frame is seted up with first plug groove, first support frame includes first limit protruding, first limit protruding is connected in the groove wall of first plug groove and with installation protruding structure is located same side, first limit protruding is protruding to first plug groove and protruding length is greater than or equal to the length of installation protruding structure, telescopic link component is plugged in first plug groove, and one side of telescopic link component is abutted to first limit protruding. To solve the technical problem that the installation protruding structure in the prior art support frame inside can contact the surface of telescopic link component, and hinder telescopic link component to move in the support frame.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a table frame and a height-adjustable table. Background Technology

[0002] A height-adjustable desk typically consists of a frame, a tabletop, and legs. The legs support the frame, and the frame supports the tabletop. To accommodate tabletops of different lengths, the frame is usually designed to be adjustable along its length.

[0003] In related technologies, a table frame typically includes a support frame and a telescopic rod component. The telescopic rod component is inserted into the support frame, and the depth of insertion into the support frame can be adjusted to control the length of the table frame in the longitudinal direction to accommodate tabletops of different lengths.

[0004] However, the support frame usually has mounting protrusions such as welded joints, flanged holes, or hot-melt holes inside; when the telescopic rod is inserted into or pulled out of the support frame, the mounting protrusions inside the support frame may come into contact with the surface of the telescopic rod, causing friction or interference, resulting in inconvenience in insertion and removal. Utility Model Content

[0005] The present invention aims to provide a table frame and a height-adjustable table to solve the technical problem in the prior art where the protruding structure inside the support frame may contact the surface of the telescopic rod component and hinder the movement of the telescopic rod component within the support frame.

[0006] The technical problem solved by this utility model embodiment is addressed by the following technical solution:

[0007] One embodiment of this utility model provides a table frame, comprising:

[0008] A first support frame, the first support frame having a first insertion slot, the first support frame including a first limiting protrusion, the first limiting protrusion being connected to the slot wall of the first insertion slot and located on the same side as the mounting protrusion structure, the first limiting protrusion protruding into the first insertion slot with a protrusion length greater than or equal to the length of the mounting protrusion structure; and

[0009] The telescopic rod component is inserted into the first insertion slot, and one side of the telescopic rod component abuts against the first limiting protrusion.

[0010] In some embodiments, the telescopic rod component has a first limiting groove, and the table frame further includes a first locking member. The telescopic rod component has a first limiting groove extending along the length direction on the side facing the mounting protrusion structure. Along the length direction, the opening of the first limiting groove includes a first limiting end and a second limiting end disposed opposite to each other. The first locking member is partially inserted into the first limiting groove via the first support frame. The first locking member is used to lock or release the first support frame and the telescopic rod component.

[0011] In some embodiments, the first locking member includes a first screw, which passes through the groove wall of the first insertion groove and extends partially into the first limiting groove;

[0012] When the first screw abuts against the groove wall opposite to the opening of the first limiting groove, the first locking member locks the first support frame and the telescopic rod component; when there is a gap between the first screw and the groove wall opposite to the opening of the first limiting groove, the first locking member releases the first support frame and the telescopic rod component.

[0013] In some embodiments, the first locking member further includes a first nut, and the first support frame includes a first positioning protrusion that extends into the first insertion groove. The length of the first positioning protrusion extending into the first insertion groove is less than the length of the first limiting protrusion extending into the first insertion groove.

[0014] The first positioning protrusion has a first positioning groove, which penetrates the first positioning protrusion. The first screw passes through the first positioning groove and is inserted into the groove wall of the first insertion groove. When the end of the first screw facing away from the first nut abuts against the groove wall facing away from the opening of the first limiting groove, the first nut is located in the first positioning groove.

[0015] In some embodiments, the table frame further includes:

[0016] The first mounting bracket is located on the side of the first support frame facing away from the telescopic rod component. The first mounting bracket has a first mounting hole and a tapered positioning protrusion extending circumferentially around the first mounting hole and toward the first support frame. The first support frame has a second positioning groove, and the tapered positioning protrusion is located in the second positioning groove and achieves positioning engagement. The second positioning groove is frustum-shaped, and the diameter of the second positioning groove gradually decreases from top to bottom.

[0017] A first connector passes through the first mounting hole and the second positioning groove to connect the first support frame and the first mounting frame.

[0018] In some embodiments, the first connector includes a second nut and a second screw; the first mounting bracket has a first clearance slot and a first guide slot, the first clearance slot communicating with the first mounting hole via the first guide slot; the inner diameter of the first clearance slot is greater than the outer diameter of the second nut, the width of the first guide slot is adapted to the diameter of the second screw, and the inner diameter of the opening defined by the tapered positioning protrusion on the side facing the first support bracket is smaller than the outer diameter of the second nut and greater than or equal to the diameter of the second screw;

[0019] The first support frame has a first threaded hole, which is connected to the second positioning groove, and the second screw is connected to the first threaded hole.

[0020] In some embodiments, the table frame further includes expansion nails and expansion buckles. The first mounting bracket has a first insertion hole, and the bottom surface of the tabletop has a second insertion hole that corresponds to and communicates with the first insertion hole. The expansion buckle is installed in the first insertion hole and the second insertion hole, and the expansion nail passes through the expansion buckle to connect the tabletop and the first mounting bracket.

[0021] In some embodiments, the table frame further includes:

[0022] The second support frame has a second insertion slot and includes a second limiting protrusion. The second limiting protrusion is connected to the slot wall of the second insertion slot and is located on the same side as the mounting protrusion structure. The second limiting protrusion protrudes into the second insertion slot and the protrusion length is greater than or equal to the length of the mounting protrusion structure.

[0023] The end of the telescopic rod component facing away from the first support frame is inserted into the second insertion slot, and one side of the telescopic rod component abuts against the second limiting protrusion.

[0024] Another embodiment of the present invention provides a height-adjustable table, including a tabletop, a support mechanism, and a table frame as described in any of the above embodiments, wherein the table frame supports the tabletop and the support mechanism supports the table frame.

[0025] In some embodiments, the height-adjustable table further includes a third connector, which includes a fourth nut and a fourth screw. The first support frame has a third clearance groove, a second guide groove, and a second mounting hole that are interconnected. The table leg has a third threaded hole. The width of the third clearance groove is greater than the diameter of the fourth nut, which is greater than the diameter of the second mounting hole. The diameter of the fourth screw is adapted to the width of the second guide groove. The fourth screw passes through the second mounting hole and the third threaded hole to connect the first support frame and the table leg.

[0026] In some embodiments, the height-adjustable table further includes a leg and a fourth connector. The fourth connector includes a fifth nut and a fifth screw. The leg is located at the end of the table leg facing away from the first support frame. The leg has a fourth clearance groove, a third guide groove, and a third mounting hole that are interconnected. The table leg has a fourth threaded hole. The width of the fourth clearance groove is greater than the diameter of the fifth nut, which is greater than the diameter of the third mounting hole. The diameter of the fifth screw is adapted to the width of the third guide groove. The fifth screw passes through the third mounting hole and the fourth threaded hole to connect the table leg and the leg.

[0027] Compared with the prior art, the first limiting protrusion and the mounting protrusion structure are located on the same side of the first support frame. The mounting protrusion structure may include protruding structures such as weld joints, flanged holes, or hot-melt holes, located on the same side wall of the first insertion groove, and the height of the first limiting protrusion is greater than that of the mounting protrusion structure. One side of the telescopic rod component abuts against the first limiting protrusion. During the movement of the telescopic rod component within the first insertion groove, the first limiting protrusion can separate the telescopic rod component from the protruding mounting protrusion structures such as weld joints, flanged holes, or hot-melt holes, preventing the telescopic rod component from being obstructed by contact with these structures. Attached Figure Description

[0028] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0029] Figure 1 This is a perspective view of the table frame in one embodiment of this utility model;

[0030] Figure 2 yes Figure 1 A partial view of the telescopic rod component of the table frame;

[0031] Figure 3 yes Figure 1 A partial sectional view of the telescopic rod component of the table frame;

[0032] Figure 4 yes Figure 1 A 3D view of the telescopic rod component of the table frame;

[0033] Figure 5 yes Figure 1 A three-dimensional view of the first support frame of the table frame in the middle;

[0034] Figure 6 yes Figure 1 A perspective view of the first mounting bracket of the table frame in the diagram;

[0035] Figure 7 yes Figure 1 A partial sectional view of the first connector of the table frame;

[0036] Figure 8 yes Figure 1 A partial sectional view of a section of the table frame;

[0037] Figure 9 yes Figure 1 A three-dimensional view of the second support frame of the table frame;

[0038] Figure 10 yes Figure 1 A perspective view of the second mounting bracket of the table frame;

[0039] Figure 11 yes Figure 1 A partial sectional view of the second connector of the table frame;

[0040] Figure 12 This is a perspective view of the lifting table in another embodiment of the present invention;

[0041] Figure 13 yes Figure 11 A partial sectional view of the height-adjustable desk in the picture;

[0042] Figure 14 yes Figure 11 A three-dimensional view of the first support frame of the height-adjustable table;

[0043] Figure 15 yes Figure 11 A partial sectional view of another part of the height-adjustable table.

[0044] Figure label:

[0045] 1000, Adjustable table; 100, Table frame; 10, First support frame; 12, First limiting protrusion; 14, First positioning protrusion; 1402, First positioning groove; 102, First insertion groove; 104, Second positioning groove; 106, First threaded hole; 107, Third clearance groove; 108, Second guide groove; 109, Second mounting hole; 20, Telescopic rod component; 22, First limiting end; 24, Second limiting end; 202, First limiting groove; 204, Second limiting groove; 30, First locking element; 32, First nut; 34, First screw; 40, Second support frame; 42, Second limiting protrusion; 402, Second insertion groove; 404, Third positioning groove; 406, Second threaded hole; 50, Second locking element; 60, First mounting frame; 62, Conical positioning protrusion ; 601, First mounting hole; 602, First clearance slot; 604, First guide slot; 70, First connector; 72, Second nut; 74, Second screw; 80, Second mounting bracket; 82, Second positioning protrusion; 802, Second clearance slot; 804, Second guide slot; 90, Second connector; 92, Third nut; 94, Third screw; 200, Tabletop; 300, Table leg; 310, Third threaded hole; 320, Fourth threaded hole; 400, Leg; 410, Fourth clearance slot; 420, Third guide slot; 430, Third mounting hole; 500, Third connector; 510, Fourth nut; 520, Fourth screw; 600, Fourth connector; 610, Fifth nut; 620, Fifth screw; 710, Expansion pin; 720, Expansion buckle. Detailed Implementation

[0046] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements can exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0048] The following detailed description, in conjunction with all the accompanying drawings, and through specific embodiments, illustrates a table frame 100 and a height-adjustable table 1000 provided in this application.

[0049] Please refer to Figures 1 to 5 One embodiment of this utility model discloses a table frame 100, including a first support frame 10 and a telescopic rod component 20; the first support frame 10 has a first insertion groove 102, and the first support frame 10 includes a first limiting protrusion 12, which is connected to the groove wall of the first insertion groove 102 and is located on the same side as the mounting protrusion structure. The first limiting protrusion 12 protrudes into the first insertion groove 102 and the protrusion length is greater than or equal to the length of the mounting protrusion structure; the telescopic rod component 20 is inserted into the first insertion groove 102, and one side of the telescopic rod component 20 abuts against the first limiting protrusion 12.

[0050] With the above structure, the first limiting protrusion 12 and the mounting protrusion structure are located on the same side of the first support frame 10. The mounting protrusion structure may include protruding structures such as weld joints, flanged holes, or hot-melt holes, located on the same side wall of the first insertion groove 102, and the height of the first limiting protrusion 12 is greater than that of the mounting protrusion structure. One side of the telescopic rod component 20 abuts against the first limiting protrusion 12. During the movement of the telescopic rod component 20 within the first insertion groove 102, the first limiting protrusion 12 can separate the telescopic rod component 20 from the protruding mounting protrusion structures such as weld joints, flanged holes, or hot-melt holes, preventing the telescopic rod component 20 from being obstructed by contact with the protruding mounting protrusion structures such as weld joints, flanged holes, or hot-melt holes.

[0051] Specifically, in this embodiment, the first support frame 10 may include multiple hollow steel bars spliced ​​together; the hollow part of the steel pipe may form a first insertion groove 102, and the cross section of the first insertion groove 102 may be rectangular; the first limiting protrusion 12 may be formed by a stamping process, and the first limiting protrusion 12 may include a hollow cuboid structure, and the first limiting protrusion 12 may be located on the lower side of the first support frame 10.

[0052] The telescopic rod component 20 can be two, and the two telescopic rod components 20 are parallel to each other. Each telescopic rod component 20 can be inserted into a corresponding first insertion slot 102. The telescopic rod component 20 can include a hollow steel bar. The side of the telescopic rod component 20 facing away from the first limiting protrusion 12 can abut against the groove wall of the first insertion slot 102 facing away from the first limiting protrusion 12, so that the first telescopic rod component 20 is in clearance fit within the first insertion slot 102. The first limiting slot 202 can penetrate the side of the telescopic rod component 20 facing the first limiting protrusion 12, and the first limiting slot 202 can be strip-shaped.

[0053] In other embodiments, the first support frame 10 may also include other structures, such as sheet metal spliced ​​together to form a support frame structure, and the first insertion groove 102 is formed in the support frame structure; the telescopic rod component 20 may also include other structures, such as a straight tube with a circular cross-section; the opening of the first limiting groove 202 may also face other directions, such as the opening of the first limiting groove 202 facing the side of the telescopic rod component 20 away from the first limiting protrusion 12; the number of telescopic rod components 20 may also be other, such as one.

[0054] In some embodiments, the table frame 100 further includes a first locking member 30. The telescopic rod component 20 has a first limiting groove 202 extending along the length direction on the side facing the mounting protrusion structure. Along the length direction, the opening of the first limiting groove 202 includes a first limiting end 22 and a second limiting end 24 disposed opposite to each other. The first locking member 30 is inserted into the first limiting groove 202 through the opening portion of the first limiting groove 202. The first locking member 30 is used to lock or release the first support frame 10 and the telescopic rod component 20.

[0055] With the above structure, the telescopic rod component 20 has a first limiting groove 202 on the side facing the mounting protrusion structure, and the first locking member 30 is inserted into the first limiting groove 202 through the groove opening portion of the first limiting groove 202; so that when the telescopic rod component 20 moves in the first insertion groove 102, the first limiting end 22 and the second limiting end 24 can limit the first locking member 30, preventing the first locking member 30 from disengaging from the first limiting groove 202, and thus preventing the telescopic rod component 20 from disengaging from the first insertion groove 102.

[0056] Additionally, the opening of the first limiting groove 202 may have uneven areas. The opening of the first limiting groove 202 faces the first limiting protrusion 12; the first limiting protrusion 12 can separate the side wall where the opening of the first limiting groove 202 is located from the inner wall of the first insertion groove 102, so as to prevent the uneven area of ​​the opening of the first limiting groove 202 from contacting the inner wall of the first insertion groove 102, making it easier for the telescopic rod component 20 to move within the first insertion groove 102.

[0057] Specifically, in this embodiment, the first locking member 30 may include a screw, and the telescopic rod component 20 may have a first limiting groove 202, the opening of the first limiting groove 202 may face the first limiting protrusion 12; the first locking member 30 passes through the first limiting groove 202; when the first locking member 30 abuts against the groove wall of the first limiting groove 202, the first locking member 30 and the first support frame 10 clamp the telescopic rod component 20, and the first locking member 30 locks the first support frame 10 and the telescopic rod component 20; when the first locking member 30 is spaced from the groove wall of the first limiting groove 202, the first locking member 30 releases the first support frame 10 and the telescopic rod component 20.

[0058] Both the first limiting end 22 and the second limiting end 24 can be semi-circular, so that the opening of the first limiting groove 202 is waist-shaped. The width of the opening of the limiting groove 202 can be adapted to the width of the first locking member 30, so that the two sides of the opening of the first limiting groove 202 can clamp the first locking member 30.

[0059] In other embodiments, the first locking member 30 may also include other structures, such as a snap-fit ​​member that can extend into the first insertion slot 102.

[0060] In some embodiments, the first locking member 30 includes a first nut 32 and a first screw 34. The first nut 32 is located on the outside of the first support frame 10. The first screw 34 passes through the groove wall of the first insertion groove 102 and extends partially into the first limiting groove 202.

[0061] When the end of the first screw 34 facing away from the first nut 32 abuts against the groove wall of the first limiting groove 202 facing away from the groove opening, the first nut 32 abuts against the outside of the first support frame 10, and the first locking member 30 locks the first support frame 10 and the telescopic rod component 20; when the end of the first screw 34 facing away from the first nut 32 is spaced from the groove wall of the first limiting groove 202 facing away from the groove opening, there is a gap between the first nut 32 and the outside of the first support frame 10, and the first locking member 30 releases the first support frame 10 and the telescopic rod component 20.

[0062] With the above structure, the first locking member 30 includes a first nut 32 and a first screw 34. During the assembly of the table frame 100, the user only needs to pass the first screw 34 through the groove wall of the first insertion groove 102 and extend it into the first limiting groove 202, and then tighten the first nut 32 so that the first nut 32 abuts against the first support frame 10, while the first screw 34 abuts against the groove wall of the first limiting groove 202 facing away from the groove opening, thus completing the installation of the first support frame 10 and the telescopic rod component 20.

[0063] When the length of the table frame 100 needs to be adjusted, the user only needs to loosen the first nut 32. When the first screw 34 is spaced from the groove wall of the first limiting groove 202 facing away from the groove opening, there is a gap between the first nut 32 and the first support frame 10. Then, pull the first support frame 10 to move the telescopic rod component 20 in the first insertion groove 102 and the first screw 34 in the groove opening of the first limiting groove 202, thus changing the length of the table frame 100. When the length of the table frame 100 is appropriate, tighten the first nut 32 again to lock the first support frame 10 and the telescopic rod component 20 with the first locking member 30.

[0064] Specifically, the first nut 32 can be round or hexagonal; the end of the first screw 34 facing away from the first nut 32 can be a round planar structure to avoid scratching the telescopic rod component 20 when the end of the first screw 34 facing away from the first nut 32 abuts against the groove wall of the first limiting groove 202.

[0065] In some embodiments, the first support frame 10 includes a first positioning protrusion 14 that extends into a first insertion groove 102. The length of the first positioning protrusion 14 extending into the first insertion groove 102 is less than the length of the first limiting protrusion 12 extending into the first insertion groove 102.

[0066] The first positioning protrusion 14 has a first positioning groove 1402, which passes through the first positioning protrusion 14. The first screw 34 passes through the first positioning groove 1402 and is inserted into the groove wall of the first insertion groove 102. When the end of the first screw 34 facing away from the first nut 32 abuts against the groove wall of the first limiting groove 202 facing away from the groove opening, the first nut 32 is located in the first positioning groove 1402.

[0067] With the above structure, the first positioning groove 1402 can position the first locking member 30, and the first screw 34 of the first locking member 30 can be inserted into the first positioning groove 1402 so that the first screw 34 can be inserted into the first limiting groove 202, thereby improving the assembly process of the first locking member 30.

[0068] In addition, the table frame 100 can be disassembled into multiple parts during transportation, and each part can be packaged separately for easy transport; after receiving the parts, the user can assemble the table frame 100. The first positioning groove 1402 can be pre-installed with the first locking member 30, that is, the first locking member 30 can be installed in the first positioning groove 1402. When assembling the first support frame 10 and the telescopic rod component 20, the user does not need to find the first locking member 30 from the parts package, which improves the assembly efficiency of the table frame 100.

[0069] In addition, the length of the first positioning protrusion 14 extending into the first insertion groove 102 is less than the length of the first limiting protrusion 12 extending into the first insertion groove 102, so as to avoid the first positioning protrusion 14 from contacting the surface of the telescopic rod component 20, and the first limiting protrusion 12 will not hinder the telescopic rod component 20 from moving within the first insertion groove 102.

[0070] Specifically, the first positioning protrusion 14 can be formed by a stamping process, and the first positioning protrusion 14 may include a circular protrusion; in the extending direction of the first insertion groove 102, the first limiting protrusion 12 and the first positioning protrusion 14 may be arranged sequentially. The first positioning groove 1402 may include a threaded hole for threaded connection of the first screw 34, so that the first locking member 30 can be pre-installed into the first positioning groove 1402.

[0071] Please refer to Figure 1 , Figure 6 and Figure 7 In some embodiments, the table frame 100 further includes a first mounting bracket 60 and a first connector 70; the first mounting bracket 60 is located on the side of the first support frame 10 facing away from the telescopic rod component 20, and the first mounting bracket 60 is provided with a first mounting hole 601 and a tapered positioning protrusion 62 extending circumferentially around the first mounting hole 601 and toward the first support frame 10; the first support frame 10 is provided with a second positioning groove 104, and the tapered positioning protrusion 62 is located in the second positioning groove 104 and achieves positioning engagement, and the second positioning groove 104 is frustum-shaped, and the diameter of the second positioning groove 104 gradually decreases from top to bottom; the first connector 70 passes through the first mounting hole 601 and the second positioning groove 104 to connect the first support frame 10 and the first mounting bracket 60.

[0072] With the above structure, during the assembly of the first mounting bracket 60 and the first support bracket 10, the conical positioning protrusion 62 can be placed in a corresponding second positioning groove 104 to position the first mounting bracket 60 and the first support bracket 10 accordingly. Then, the first connector 70 is inserted through the first mounting hole 601 and the second positioning groove 104, and the first mounting bracket 60 is fixed to the first support bracket 10 using the first connector 70. In this embodiment, the assembly of the first mounting bracket 60 and the first support bracket 10 is more convenient.

[0073] Specifically, in this embodiment, the first mounting frame 60 may include two steel plates joined together, and the two steel plates in the first mounting frame 60 may be perpendicular to each other; the first mounting hole 601 may be frustum-shaped, and the diameter of the first mounting hole 601 gradually decreases from top to bottom; the conical positioning protrusion 62 may be formed by stamping one of the steel plates parallel to the horizontal plane, and the shape of the conical positioning protrusion 62 may be adapted to the shape of the second positioning groove 104 so that the conical positioning protrusion 62 is located in the second positioning groove 104 and achieves positioning fit; the steel plate provided with the conical positioning protrusion 62 may also be used to support the tabletop 200 of the lifting table 1000, and the conical positioning protrusion 62 may be a circular bulge. The second positioning groove 104 may be a through groove, and the second positioning groove 104 may be formed by stamping the upper surface of the first support frame 10; the steel plate of the first mounting frame 60 parallel to the horizontal plane may be attached to the upper surface of the first support frame 10. The first connector 70 may include screws.

[0074] In other embodiments, the first mounting bracket 60 may also include other structures, such as steel bars spliced ​​together; the first mounting hole 601 may also be other shapes, such as a cylinder; the first connector 70 may also include other structures, such as a snap-fit ​​or a pin; the tapered positioning protrusion 62 may also be provided on other structures of the first mounting bracket 60, for example, the tapered positioning protrusion 62 is formed by stamping a steel plate perpendicular to the horizontal plane, while another steel plate parallel to the horizontal plane is used to support the tabletop 200 of the lifting table 1000.

[0075] In some embodiments, the first connector 70 includes a second nut 72 and a second screw 74; the first mounting bracket 60 has a first clearance groove 602 and a first guide groove 604, the first clearance groove 602 communicates with the first mounting hole 601 through the first guide groove 604; the inner diameter of the first clearance groove 602 is larger than the outer diameter of the second nut 72, the width of the first guide groove 604 is adapted to the diameter of the second screw 74, and the inner diameter of the opening defined by the tapered positioning protrusion 62 on the side facing the first support bracket 10 is smaller than the outer diameter of the second nut 72 and larger than or equal to the diameter of the second screw 74.

[0076] The first support frame 10 has a first threaded hole 106, which is connected to the second positioning groove 104. The second screw 74 is connected to the first threaded hole 106.

[0077] With the above structure, the first support frame 10 has a first threaded hole 106, and the second screw 74 is connected to the first threaded hole 106; so that when the first support frame 10 is disassembled relative to the first mounting frame 60, the first connector 70 can be pre-installed in the first threaded hole 106, and when the first support frame 10 and the first mounting frame 60 are assembled, it is not necessary to find the first connector 70 from the parts package, thus improving assembly efficiency.

[0078] Furthermore, during the assembly of the first support frame 10 and the first mounting frame 60, the first mounting frame 60 can be first placed above the first support frame 10, and the second nut 72 aligned with the first clearance slot 602. Then, the first mounting frame 60 is lowered so that the second nut 72 passes through the first clearance slot 602. At this time, there is a gap between the first mounting frame 60 and the first support frame 10 in the vertical direction, so that the tapered positioning protrusion 62 is offset from the upper surface of the first support frame 10. Then, the first mounting frame 60 is positioned relative to the first support frame 10. The first screw 74 is moved horizontally so that it moves along the first guide groove 604 to the conical positioning protrusion 62, which aligns with the second positioning groove 104. Then, the first mounting bracket 60 is moved downward so that the conical positioning protrusion 62 extends into the second positioning groove 104. Finally, the second nut 72 is tightened so that the first connector 70 is locked. The second nut 72 and the first support bracket 10 clamp the first mounting bracket 60, and the first support bracket 10 and the first mounting bracket 60 are assembled. This prevents the first guide groove 604 from being misaligned with the first threaded hole 106.

[0079] Specifically, in this embodiment, there can be two first connectors 70, located on opposite sides of the first support frame 10. Each first connector 70 corresponds to a first clearance slot 602 and a first guide slot 604. The first clearance slot 602 can be circular, and the first guide slot 604 can be a strip parallel to the horizontal plane. The extension direction of the first guide slot 604 can be perpendicular to the extension direction of the first insertion slot 102. The cross-section of the second nut 72 can be circular, and the second nut 72 can be located within the conical positioning protrusion 62.

[0080] In other embodiments, the number of first connectors 70 may be other, such as one or three; the first clearance groove 602 may also be in other shapes, such as a regular hexagon; the first guide groove 604 may also be in other shapes, such as an arc or an "L" shape.

[0081] Please refer to Figure 8 In some embodiments, the table frame 100 further includes expansion nails 710 and expansion buckles 720. The first mounting bracket 60 is provided with a first insertion hole, and the bottom surface of the table is provided with a second insertion hole corresponding to and communicating with the first insertion hole. The expansion buckle 720 is installed in the first insertion hole and the second insertion hole, and the expansion nail 710 passes through the expansion buckle 720 to connect the table and the first mounting bracket 60.

[0082] The support mechanism may include a first mounting bracket 60 and a second mounting bracket 80, and expansion pins 710 may be inserted into the first mounting bracket 60 and the second mounting bracket 80.

[0083] Please refer to Figure 1 and Figure 9In some embodiments, the table frame 100 further includes a second support frame 40 and a second locking member 50; the second support frame 40 has a second insertion groove 402 and includes a second limiting protrusion 42, the second limiting protrusion 42 is connected to the groove wall of the second insertion groove 402 and is located on the same side as the mounting protrusion structure, the second limiting protrusion 42 protrudes into the second insertion groove 402 and the protrusion length is greater than or equal to the length of the mounting protrusion structure.

[0084] One end of the telescopic rod component 20 facing away from the first support frame 10 is inserted into the second insertion groove 402, and one side of the telescopic rod component 20 abuts against the second limiting protrusion 42. The telescopic rod component 20 has a second limiting groove 204, and the opening of the second limiting groove 204 faces the second limiting protrusion 42.

[0085] The second locking member 50 is connected between the second support frame 40 and the telescopic rod component 20, and part of the second locking member 50 is inserted into the second limiting groove 204; the second locking member 50 is used to lock or release the second support frame 40 and the telescopic rod component 20.

[0086] With the above structure, the end of the telescopic rod component 20 facing away from the first support frame 10 is inserted into the second insertion slot 402, so that the first support frame 10 and the second support frame 40 are symmetrically distributed with respect to the telescopic rod component 20. When adjusting the length of the table frame 100, the user can pull the first support frame 10 or the second support frame 40.

[0087] In addition, the second limiting protrusion 42 can also support the telescopic rod component 20, preventing it from being obstructed by protruding structures such as weld joints, flanged holes, or hot melt holes. During the movement of the telescopic rod component 20 within the second insertion groove 402, the groove wall at the end of the second limiting groove 204 can also limit the movement of the second locking member 50, preventing the telescopic rod component 20 from disengaging from the second insertion groove 402.

[0088] Specifically, the structure of the second support frame 40 can be the same as that of the first support frame 10; the structure of the second locking member 50 can also be the same as that of the first locking member 30.

[0089] Please refer to Figure 1 , Figure 10 and Figure 11 In some embodiments, the table frame 100 further includes a second mounting bracket 80 and a second connector 90; the second mounting bracket 80 is located on the side of the second support frame 40 facing away from the telescopic rod component 20, and the second mounting bracket 80 includes a second positioning protrusion 82; the second support frame 40 has a third positioning groove 404, and the second positioning protrusion 82 is located in the third positioning groove 404; the second connector 90 passes through the second positioning protrusion 82 and is connected to the second support frame 40.

[0090] With the above structure, during the assembly of the second mounting bracket 80 and the second support bracket 40, the second positioning protrusion 82 can first be placed in a corresponding third positioning groove 404 to position the second mounting bracket 80 and the second support bracket 40 accordingly; then, the second connecting piece 90 is inserted through the second positioning protrusion 82 to fix the second mounting bracket 80 to the second support bracket 40. In this embodiment, the assembly of the second mounting bracket 80 and the second support bracket 40 is more convenient.

[0091] Specifically, in this embodiment, the structure of the first support frame 10 can be the same as the structure of the second support frame 40; the structure of the first connector 70 can also be the same as the structure of the second connector 90.

[0092] In other embodiments, the first support frame 10 may also include other structures, such as the first support frame 10 may include a block, and the first support frame 10 is fixedly connected to the end of the telescopic rod component 20 facing away from the first support frame 10.

[0093] In some embodiments, the second connector 90 includes a third nut 92 and a third screw 94; the second mounting bracket 80 has a second clearance slot 802 and a second guide slot 804 that are interconnected, and one end of the second guide slot 804 facing away from the second clearance slot 802 extends into the second positioning protrusion 82; the second clearance slot 802 is used for the third nut 92 to pass through, and the width of the second guide slot 804 is adapted to the diameter of the third screw 94.

[0094] The second support frame 40 has a second threaded hole 406, which is connected to the third positioning groove 404. The second threaded hole 406 penetrates the groove wall of the third positioning groove 404, and the third screw 94 is connected inside the second threaded hole 406.

[0095] With the above structure, the second support frame 40 has a second threaded hole 406, and the third screw 94 is connected to the second threaded hole 406; so that when the second support frame 40 is disassembled relative to the second mounting frame 80, the second connector 90 can be pre-installed in the second threaded hole 406, and when the second support frame 40 and the second mounting frame 80 are assembled, it is not necessary to find the second connector 90 from the parts package, thus improving assembly efficiency.

[0096] Furthermore, during the assembly of the second support frame 40 and the second mounting frame 80, the second mounting frame 80 can first be placed above the second support frame 40, and the third nut 92 aligned with the second clearance slot 802. Then, the second mounting frame 80 is lowered so that the third nut 92 passes through the second clearance slot 802. At this time, there is a gap between the second mounting frame 80 and the second support frame 40 in the vertical direction, so that the second positioning protrusion 82 is offset from the upper surface of the second support frame 40. Then, the second mounting frame 80 is positioned relative to the second support frame 40. The third screw 94 is moved horizontally so that it moves along the second guide groove 804 to the second positioning protrusion 82, and the second positioning protrusion 82 is aligned with the third positioning groove 404. Then, the second mounting bracket 80 is moved down so that the second positioning protrusion 82 extends into the third positioning groove 404. Finally, the third nut 92 is tightened so that the second connector 90 is locked. The third nut 92 and the second support bracket 40 clamp the second mounting bracket 80, and the second support bracket 40 and the second mounting bracket 80 are assembled. This avoids the second guide groove 804 and the second threaded hole 406 from being misaligned.

[0097] Please refer to Figure 12 Another embodiment of the present invention provides a height-adjustable table 1000, including a tabletop 200, a support mechanism, and a table frame 100 as described in any of the above embodiments. The table frame 100 supports the tabletop 200, and the support mechanism supports the table frame 100.

[0098] Specifically, the support mechanism may include table legs 300 and legs 400; the tabletop 200 may be fixed to the upper side of the first mounting frame 60 and the second mounting frame 80 using threaded connectors; there may be two table legs 300, which may be respectively installed on the first mounting frame 60 and the second mounting frame 80, and the table legs 300 are located on the lower side of the first mounting frame 60 and the second mounting frame 80. Each table leg 300 may include multiple support columns that can move vertically relative to each other; there may be two legs 400, and each leg 400 may be fixed to the lower side of a corresponding table leg 300. The tabletop 200, table legs 300, and legs 400 may all have multiple threaded holes, and the threaded connectors in the lifting table 1000 may be pre-installed in the threaded holes.

[0099] In other embodiments, the second support frame 40, the first mounting frame 60 and the second mounting frame 80 may be omitted, and the telescopic rod component 20 may also include a support block. The support block may be located on the side of the telescopic rod component 20 facing away from the first support frame 10. The first support frame 10 and the support block may jointly support the tabletop 200. One table leg 300 may be installed on the first support frame 10 and the other table leg 300 may be installed on the support block.

[0100] Please refer to the reference. Figure 13 , Figure 14 and Figure 15 In some embodiments, the height-adjustable table 1000 further includes a third connector 500, which includes a fourth nut 510 and a fourth screw 520. The first support frame 10 has a third clearance groove 107, a second guide groove 108, and a second mounting hole 109 that are interconnected. The table leg 300 has a third threaded hole 310. The width of the third clearance groove 107 is greater than the diameter of the fourth nut 510, which is greater than the diameter of the second mounting hole 109. The diameter of the fourth screw 520 is adapted to the width of the second guide groove 108. The fourth screw 520 passes through the second mounting hole 109 and the third threaded hole 310 to connect the first support frame 10 and the table leg 300.

[0101] Specifically, the second guide groove 108 can be in the shape of an "L", and the third connector 500 can be pre-installed in the third threaded hole 310.

[0102] In some embodiments, the height-adjustable table 1000 further includes a fourth connector 600, which includes a fifth nut 610 and a fifth screw 620. The leg 400 is located at the end of the table leg 300 facing away from the first support frame 10. The leg 400 has a fourth clearance groove 410, a third guide groove 420 and a third mounting hole 430 that are interconnected. The table leg 300 has a fourth threaded hole 320. The width of the fourth clearance groove 410 is greater than the diameter of the fifth nut 610 and greater than the diameter of the third mounting hole 430. The diameter of the fifth screw 620 is adapted to the width of the third guide groove 420. The fifth screw 620 passes through the third mounting hole 430 and the fourth threaded hole 320 to connect the table leg 300 and the leg 400.

[0103] Specifically, the third guide groove 420 can be in the shape of an "L", and the fourth connector 600 can be pre-installed in the fourth threaded hole 320.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A table frame (100), characterized in that, include: A first support frame (10) is provided with a first insertion slot (102). The first support frame (10) includes a first limiting protrusion (12). The first limiting protrusion (12) is connected to the groove wall of the first insertion slot (102) and is located on the same side as the mounting protrusion structure. The first limiting protrusion (12) protrudes into the first insertion slot (102) and the protrusion length is greater than or equal to the length of the mounting protrusion structure. as well as Telescopic rod component (20) is inserted into the first insertion slot (102), and one side of the telescopic rod component (20) abuts against the first limiting protrusion (12).

2. The table frame (100) according to claim 1, characterized in that, It also includes a first locking member (30), and the telescopic rod component (20) has a first limiting groove (202) extending along the length direction on the side facing the mounting protrusion structure. Along the length direction, the opening of the first limiting groove (202) includes a first limiting end (22) and a second limiting end (24) disposed opposite to each other. The first locking member (30) is partially inserted into the first limiting groove (202) through the first support frame (10). The first locking member (30) is used to lock or release the first support frame (10) and the telescopic rod component (20).

3. A table frame (100) according to claim 2, characterized in that, The first locking member (30) includes a first screw (34), which passes through the groove wall of the first insertion groove (102) and partially extends into the first limiting groove (202); When the first screw (34) abuts against the groove wall of the first limiting groove (202) facing away from the groove opening, the first locking member (30) locks the first support frame (10) and the telescopic rod component (20); when the first screw (34) and the groove wall of the first limiting groove (202) facing away from the groove opening are spaced apart, the first locking member (30) releases the first support frame (10) and the telescopic rod component (20).

4. A table frame (100) according to claim 3, characterized in that, The first locking member (30) further includes a first nut (32), and the first support frame (10) includes a first positioning protrusion (14), the first positioning protrusion (14) extends into the first insertion groove (102), and the length of the first positioning protrusion (14) extending into the first insertion groove (102) is less than the length of the first limiting protrusion (12) extending into the first insertion groove (102). The first positioning protrusion (14) has a first positioning groove (1402), the first positioning groove (1402) passes through the first positioning protrusion (14), and the first screw (34) passes through the first positioning groove (1402) and is inserted into the groove wall of the first insertion groove (102); when the first screw (34) abuts against the groove wall of the first limiting groove (202) facing away from the groove opening, the first nut (32) is located in the first positioning groove (1402).

5. A table frame (100) according to claim 1, characterized in that, Also includes: A first mounting bracket (60) is located on the side of the first support frame (10) facing away from the telescopic rod component (20). The first mounting bracket (60) has a first mounting hole (601) and a tapered positioning protrusion (62) extending circumferentially around the first mounting hole (601) and toward the first support frame (10). The first support frame (10) has a second positioning groove (104), and the tapered positioning protrusion (62) is located in the second positioning groove (104) and achieves positioning engagement. The first connector (70) passes through the first mounting hole (601) and the second positioning groove (104) to connect the first support frame (10) and the first mounting frame (60).

6. A table frame (100) according to claim 5, characterized in that, The first connector (70) includes a second nut (72) and a second screw (74); the first mounting bracket (60) has a first clearance slot (602) and a first guide slot (604), the first clearance slot (602) communicates with the first mounting hole (601) through the first guide slot (604); the inner diameter of the first clearance slot (602) is larger than the outer diameter of the second nut (72), the width of the first guide slot (604) is adapted to the diameter of the second screw (74), and the inner diameter of the opening defined by the tapered positioning protrusion (62) on the side facing the first support bracket (10) is smaller than the outer diameter of the second nut (72) and larger than or equal to the diameter of the second screw (74); The first support frame (10) has a first threaded hole (106), which is connected to the second positioning groove (104), and the second screw (74) is connected in the first threaded hole (106).

7. A table frame (100) according to claim 5, characterized in that, It also includes expansion nails (710) and expansion buckles (720). The first mounting bracket (60) is provided with a first insertion hole, and the bottom surface of the table is provided with a second insertion hole that corresponds to and communicates with the first insertion hole. The expansion buckle (720) is installed in the first insertion hole and the second insertion hole. The expansion nail (710) passes through the expansion buckle (720) to connect the table and the first mounting bracket (60).

8. A table frame (100) according to any one of claims 1 to 7, characterized in that, Also includes: The second support frame (40) has a second insertion slot (402) and includes a second limiting protrusion (42). The second limiting protrusion (42) is connected to the groove wall of the second insertion slot (402) and is located on the same side as the mounting protrusion structure. The second limiting protrusion (42) protrudes into the second insertion slot (402) and the protrusion length is greater than or equal to the length of the mounting protrusion structure. One end of the telescopic rod component (20) facing away from the first support frame (10) is inserted into the second insertion slot (402), and one side of the telescopic rod component (20) abuts against the second limiting protrusion (42).

9. A height-adjustable desk (1000), characterized in that, It includes a tabletop (200), table legs (300), and a table frame (100) as described in any one of claims 1-8, wherein the table frame (100) supports the tabletop (200), and the table legs (300) support the table frame (100).

10. The height-adjustable desk (1000) according to claim 9, characterized in that, It also includes a third connector (500), which includes a fourth nut (510) and a fourth screw (520). The first support frame (10) has a third clearance slot (107), a second guide slot (108), and a second mounting hole (109) that are interconnected. The third clearance slot (107) extends along the height direction of the first support frame (10), and the second mounting hole (109) extends along the length direction of the first support frame (10). The table legs (300) A third threaded hole (310) is provided; the width of the third clearance groove (107) is greater than the diameter of the fourth nut (510) and greater than the diameter of the second mounting hole (109); the diameter of the fourth screw (520) is adapted to the width of the second guide groove (108) and the width of the second mounting hole (109); the fourth screw (520) passes through the second mounting hole (109) and the third threaded hole (310) to connect the first support frame (10) and the table leg (300).

11. The height-adjustable desk (1000) according to claim 10, characterized in that, The table leg (300) includes a leg frame (400) and a fourth connector (600). The fourth connector (600) includes a fifth nut (610) and a fifth screw (620). The leg frame (400) is located at the end of the table leg (300) facing away from the first support frame (10). The leg frame (400) has a fourth clearance groove (410), a third guide groove (420), and a third mounting hole (430) that are interconnected. The table leg (300) has a fourth threaded hole. (320); The width of the fourth clearance groove (410) is greater than the diameter of the fifth nut (610) and greater than the diameter of the third mounting hole (430). The diameter of the fifth screw (620) is adapted to the width of the third guide groove (420) and the width of the third mounting hole (430). The fifth screw (620) passes through the third mounting hole (430) and the fourth threaded hole (320) to connect the table leg (300) and the bracket (400).

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