Table frame capable of ascending and descending

Abstract

The utility model discloses a liftable table frame, and belongs to the technical field of table frames. The utility model discloses a liftable table frame. The table frame comprises an adjusting assembly and a supporting assembly, the adjusting assembly comprises a first mounting sleeve, a second mounting sleeve, a locking seat and a locking block; the supporting assembly comprises a telescopic pipe. The locking block is clamped at the upper end of the telescopic pipe, and the locking block is fixedly connected with the first mounting sleeve; the upper end of the telescopic pipe penetrates through the interior of the second mounting sleeve; the second mounting sleeve is nested and clamped on the lower side of the first mounting sleeve, and the second mounting sleeve and the first mounting sleeve are mutually clamped through a locking seat; the locking block is located in a cavity formed by matching the first mounting sleeve, the second mounting sleeve and the locking seat; the number of installation assemblies of the table frame can be reduced, installation of the table frame can be completed only through sliding clamping of the locking bases, the installation difficulty of the table frame is reduced, and the table frame can be rapidly installed conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of table frames, and more specifically, relates to a liftable table frame. Background Art

[0002] Tables are commonly used furniture, and existing table frames can usually be raised and lowered to adjust the height of the tabletop, so that users can adjust it according to their personal circumstances. The most common table frame adjustment methods include electric drive and manual drive. Manual drive is energy-saving and environmentally friendly, has lower costs, and is easier to control the lifting height and speed. It can be stopped at any time if a problem occurs during the process. However, the structure of existing manually adjustable liftable table frames is relatively complex, and the number of installation components is large, which is not convenient for users to install quickly. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a liftable table frame, which can reduce the installation components of the table frame. The installation of the table frame can be completed only by sliding and locking the locking seat, thereby reducing the installation difficulty of the table frame and facilitating the quick installation of the table frame.

[0004] The utility model provides a liftable table frame, which includes an adjustment assembly and a support assembly. The adjustment assembly includes a first mounting sleeve, a second mounting sleeve, a locking seat, and a locking block. The support assembly includes a telescopic tube. The locking block is clamped to the upper end of the telescopic tube, and the locking block and the first mounting sleeve are fixedly connected. The upper end of the telescopic tube is arranged to extend through the interior of the second mounting sleeve. The second mounting sleeve is nested and clamped to the lower side of the first mounting sleeve, and the second mounting sleeve and the first mounting sleeve are clamped to each other via the locking seat. The locking block is located in a chamber formed by the first mounting sleeve, the second mounting sleeve, and the locking seat.

[0005] As a further improvement to the present invention, the second mounting sleeve has an insertion slot on one side, which allows the second mounting sleeve to be nested within the outer side of the upper end of the telescopic tube. A mounting slot is provided at one end of the insertion slot, which is slidably connected to a locking seat. When the locking seat is fully inserted into the mounting slot, the locking seat engages with the second mounting sleeve.

[0006] As a further improvement of the present invention, the mounting groove includes a limiting groove and a snap-in groove. The locking seat includes a limiting block and a snap-in block. The second mounting sleeve is symmetrically provided with concave plates extending inward on the left and right sides, and the upper side of the concave plate and the inner side of the second mounting sleeve cooperate to form a limiting groove. The snap-in groove is provided on the upper part of the concave plate. The limiting blocks are symmetrically provided on the upper side of the locking seat and protrude to the outside of the locking seat. The outer peripheral surfaces of the limiting blocks are respectively in contact with the side walls of the limiting groove. The snap-in blocks are symmetrically provided on both sides of the locking seat, and the snap-in blocks are snapped into the snap-in groove to limit the locking seat.

[0007] As a further improvement of the present invention, a mounting shaft is provided through the locking block, the side plates of the first mounting sleeve are located on both sides of the mounting shaft, a fixing pin is provided in the mounting shaft, and the locking block and the first mounting sleeve are connected via the fixing pin.

[0008] As a further improvement to the present invention, the adjustment assembly further includes a stop block, a handle, and a pivot pin. The pivot pin extends through the first mounting sleeve, and the upper portion of the stop block is pivotally connected to the pivot pin. The stop block is fixedly connected to one end of the handle. An adjustment slot is defined on one side of the second mounting sleeve, and the handle is positioned within the slot. The locking block has upper and lower notches defined on the side adjacent to the stop block, with the lower end of the stop block selectively abutting against the upper and lower notches.

[0009] As a further improvement of the present invention, the telescopic tube includes a first telescopic tube and a second telescopic tube. The first telescopic tube is located below the second telescopic tube, the second telescopic tube extends into the first telescopic tube, and the first telescopic tube and the second telescopic tube are slidably connected.

[0010] As a further improvement of the present invention, a base is fixedly provided at the lower end of the first telescopic tube.

[0011] As a further improvement of the present invention, a hook is fixedly provided on the side surface of the upper end of the second telescopic tube.

[0012] As a further improvement of the present invention, the table frame is bilaterally symmetrical, and a first connecting rod is fixedly provided between the lower ends of the first telescopic tubes on both sides.

[0013] As a further improvement of the present invention, the table frame is bilaterally symmetrical, and a second connecting rod is fixedly provided between the lower ends of the second telescopic tubes on both sides.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting a first mounting sleeve, a second mounting sleeve and a locking seat, the second mounting sleeve is nested and connected to the lower side of the first mounting sleeve, so that the installation components of the table frame can be reduced. The installation of the table frame can be completed only by sliding and connecting the locking seat, which reduces the difficulty of installing the table frame and facilitates the quick installation of the table frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of a single bracket of the present invention;

[0018] Figure 3 This is an exploded view of the adjustment assembly of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the adjustment component of the utility model.

[0020] Figure 5 This is another structural schematic diagram of the adjustment assembly of the present utility model;

[0021] Figure 6 A schematic diagram of the handle and locking block of the present invention;

[0022] Figure 7 It is a side view of the handle and locking block of the utility model;

[0023] Figure 8 This is a schematic structural diagram of the installation slot of the utility model;

[0024] Figure 9 This is a schematic diagram of the installation of the locking seat and the mounting slot of the utility model;

[0025] Figure 10 It is an enlarged schematic diagram of the installation slot of the utility model;

[0026] Figure 11 It is a structural schematic diagram of the clamping groove and the clamping block of the utility model.

[0027] Description of the numbers in the figure:

[0028] Adjustment assembly 1, first mounting sleeve 11, second mounting sleeve 12, locking seat 13, limit block 131, clamping block 132, locking block 14, upper notch 141, lower notch 142, mounting shaft 15, handle 16, rotating pin 17, support assembly 2, first telescopic tube 21, second telescopic tube 22, base 23, first connecting rod 24, second connecting rod 25, hook 26, mounting slot 3, limit slot 31, clamping slot 32, adjustment slot 4. DETAILED DESCRIPTION

[0029] Specific embodiment 1: Please refer to Figures 1-9 A liftable table frame includes an adjustment component 1 and a support component 2. The adjustment component 1 includes a first mounting sleeve 11, a second mounting sleeve 12, a locking seat 13 and a locking block 14. The support component 2 includes a telescopic tube.

[0030] A locking block 14 is secured to the upper end of the telescopic tube, providing a fixed connection between the locking block 14 and the first mounting sleeve 11. The upper end of the telescopic tube extends through the interior of the second mounting sleeve 12. The second mounting sleeve 12 is nested and secured to the underside of the first mounting sleeve 11. The second mounting sleeve 12 and the first mounting sleeve 11 are secured to each other via a locking seat 13. The locking block 14 is located within a cavity formed by the first mounting sleeve 11, the second mounting sleeve 12, and the locking seat 13.

[0031] like Figure 4As shown, the second mounting sleeve 12 has an insertion slot on one side, which nests inside the outer side of the upper end of the telescopic tube. A mounting slot 3 is provided at one end of the insertion slot, which is slidably connected to a locking seat 13. When the locking seat 13 is fully inserted into the mounting slot 3, it engages with the second mounting sleeve 12.

[0032] like Figures 8-11 As shown (the telescopic tube is not shown), the mounting groove includes a limiting groove 31 and a clamping groove 32; the locking seat 13 includes a limiting block 131 and a clamping block 132; the second mounting sleeve 12 is symmetrically provided with concave plates extending inward on the left and right sides, and the upper side of the concave plate and the inner side of the second mounting sleeve 12 cooperate to form the limiting groove 31; the clamping groove 32 is opened at the upper part of the concave plate; the limiting blocks 131 are respectively symmetrically provided on the upper side of the locking seat 13 and protrude toward the outside of the locking seat 13; the outer peripheral surfaces of the limiting blocks 131 are respectively abutted against the side walls of the limiting groove 31; the clamping blocks 132 are respectively symmetrically provided on both sides of the locking seat 13, and the clamping blocks 132 are clamped in the clamping groove 32 to limit the locking seat 13.

[0033] A mounting shaft 15 extends through the locking block 14. The side panels of the first mounting sleeve 11 are located on either side of the mounting shaft 15. A fixing pin is provided within the mounting shaft 15, connecting the locking block 14 to the first mounting sleeve 11 via the fixing pin. In this embodiment, a tabletop is fixedly mounted on the upper side of the first mounting sleeve 11.

[0034] The adjustment assembly 1 also includes a limit block, a handle 16 and a rotating pin 17. The rotating pin 17 is provided on the first mounting sleeve 11, and the upper portion of the limit block is rotatably connected to the rotating pin 17. The limit block is fixedly connected to one end of the handle 16. An adjustment slot 4 is provided on one side of the second mounting sleeve 12, and the handle 16 is located in the adjustment slot 4. An upper notch 141 and a lower notch 142 are provided on the side of the locking block 14 close to the limit block, and the lower end of the limit block can selectively abut against the upper notch 141 and the lower notch 142 to adjust the inclination angle of the table top relative to the telescopic tube.

[0035] The telescopic tubes include a first telescopic tube 21 and a second telescopic tube 22. The first telescopic tube 21 is located below the second telescopic tube 22, and the second telescopic tube 22 extends into the first telescopic tube 21. The first and second telescopic tubes 21 and 22 are slidably connected. In this embodiment, the telescopic tubes are adjusted to a certain height using a manual screw. Manual screw control of the telescopic tubes is a conventional technique, and the specific connection relationship and operating principle will not be detailed here.

[0036] A base 23 is fixedly mounted at the lower end of the first telescopic tube 21. A hook 26 is fixedly mounted on the side of the upper end of the second telescopic tube 22. The table frame is bilaterally symmetrical, with a first connecting rod 24 fixedly mounted between the lower ends of the first telescopic tubes 21 on both sides. A second connecting rod 25 is fixedly mounted between the lower ends of the second telescopic tubes 22 on both sides.

[0037] Working principle:

[0038] During installation, the locking block 14 is clamped on the upper end of the first telescopic tube 21, and the locking block 14 is fixedly connected to the first mounting sleeve 11 through the mounting shaft 15 and the fixing pin. At the same time, the first mounting sleeve 11 has a through hole on one side of the mounting shaft 15, so that the rotating pin 17 is penetrated and set on the first mounting sleeve 11, connecting the limit block and the first mounting sleeve 11, and the upper part of the limit block is rotatably connected to the rotating pin 17. The handle 16 is located in the adjusting slot 4; the second mounting sleeve 12 is inserted into the upper end of the first telescopic tube 21 through the insertion slot opened on one side of the second mounting sleeve 12, and the second mounting sleeve 12 is clamped on the first mounting sleeve On the lower side of the sleeve 11, place the locking seat 13 into the installation groove 3, the limit block 131 is located at the bottom of the limit groove 31, push the locking seat 13 upward, and push the clamping block 132 into the clamping groove 32, and connect the two by sliding the clamped locking seat 13 to complete the installation of the table frame; when manually adjusting the table top, press the handle 16 upward to make the lower end of the limit block and the lower notch 142 of the locking block 14 lose the limit, so as to rotate the adjustment component 1 and the table top to adjust the tilt angle. When the adjustment is completed, release the handle 16 again to make the lower end of the limit block and the upper notch 141 of the locking block 14 clamped and limited. At this time, the table top is tilted relative to the horizontal plane.

Claims

1. A liftable table frame, characterized by: The table frame comprises an adjustment component (1) and a support component (2); the adjustment component (1) comprises a first mounting sleeve (11), a second mounting sleeve (12), a locking seat (13) and a locking block (14); the support component (2) comprises a telescopic tube; the locking block (14) is clamped on the upper end of the telescopic tube, and the locking block (14) and the first mounting sleeve (11) are fixedly connected; the upper end of the telescopic tube is arranged inside the second mounting sleeve (12); the second mounting sleeve (12) is nested and clamped on the lower side of the first mounting sleeve (11), and the second mounting sleeve (12) and the first mounting sleeve (11) are clamped to each other through the locking seat (13); the locking block (14) is located in a cavity formed by the first mounting sleeve (11), the second mounting sleeve (12) and the locking seat (13).

2. The liftable table frame according to claim 1, characterized in that: An insertion groove is provided on one side of the second mounting sleeve (12), and the second mounting sleeve (12) is nested in the outer side of the upper end of the telescopic tube through the insertion groove; a mounting groove (3) is provided at one end of the insertion groove, and the mounting groove (3) is slidably connected to the locking seat (13); when the locking seat (13) is completely pushed into the mounting groove (3), the locking seat (13) is engaged with the second mounting sleeve (12).

3. The liftable table frame according to claim 2, characterized in that: The mounting groove includes a limiting groove (31) and a clamping groove (32); the locking seat (13) includes a limiting block (131) and a clamping block (132); the second mounting sleeve (12) is symmetrically provided with concave plates extending inward, and the upper side of the concave plate cooperates with the inner side of the second mounting sleeve (12) to form the limiting groove (31); the clamping groove (32) is opened at the upper part of the concave plate; the limiting blocks (131) are respectively symmetrically provided on the upper side of the locking seat (13) and protrude toward the outside of the locking seat (13); the outer peripheral surface of the limiting block (131) is respectively in contact with the side wall of the limiting groove (31); the clamping blocks (132) are respectively symmetrically provided on both sides of the locking seat (13), and the clamping blocks (132) are clamped in the clamping groove (32) to limit the locking seat (13).

4. The liftable table frame according to claim 1, characterized in that: A mounting shaft (15) is provided through the locking block (14); side plates of the first mounting sleeve (11) are located on both sides of the mounting shaft (15); a fixing pin is provided in the mounting shaft (15); and the locking block (14) and the first mounting sleeve (11) are connected via the fixing pin.

5. The liftable table frame according to claim 1, characterized in that: The adjustment assembly (1) further comprises a limit block, a handle (16) and a rotating pin (17); the rotating pin (17) is provided on the first mounting sleeve (11), and the upper portion of the limit block is rotatably connected to the rotating pin (17); the limit block is fixedly connected to one end of the handle (16); an adjustment slot (4) is provided on one side of the second mounting sleeve (12), and the handle (16) is located in the adjustment slot (4); an upper notch (141) and a lower notch (142) are provided on one side of the locking block close to the limit block, and the lower end of the limit block can selectively abut against the upper notch (141) and the lower notch (142).

6. The liftable table frame according to claim 1, characterized in that: The telescopic tube comprises a first telescopic tube (21) and a second telescopic tube (22); the first telescopic tube (21) is located below the second telescopic tube (22), the second telescopic tube (22) extends into the first telescopic tube (21), and the first telescopic tube (21) and the second telescopic tube (22) are slidably connected.

7. The liftable table frame according to claim 6, characterized in that: A base (23) is fixedly provided at the lower end of the first telescopic tube (21).

8. The liftable table frame according to claim 6, characterized in that: A hook (26) is fixedly provided on the side surface of the upper end of the second telescopic tube (22).

9. The liftable table frame according to claim 6, characterized in that: The table frame is bilaterally symmetrical, and a first connecting rod (24) is fixedly provided between the lower ends of the first telescopic tubes (21) on both sides.

10. The liftable table frame according to claim 6, characterized in that: The table frame is bilaterally symmetrical, and a second connecting rod (25) is fixedly provided between the lower ends of the second telescopic tubes (22) on both sides.

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