Table body with adjustable bottom frame

Abstract

The utility model discloses a table body with an adjustable bottom frame, which belongs to the technical field of assembled tables and comprises a first bottom frame, a second bottom frame and a table board. A combined pipe is inserted between the first bottom frame and the second bottom frame, a positive and negative tooth lead screw is rotationally connected into the combined pipe, the outer walls of two opposite teeth of the positive and negative tooth lead screw are both in threaded connection with lead screw sleeve blocks, and sliding openings are formed in the positions, corresponding to the two lead screw sleeve blocks, of the outer wall of the combined pipe; the ends, connected with the joint pipe in an inserted mode, of the first bottom frame and the second bottom frame are detachably connected with the two lead screw sleeve blocks correspondingly. A first bevel gear is fixed to the outer wall of the positive and negative tooth lead screw, a hand twisting rotating rod is rotationally arranged on the outer wall of the combined pipe, a second bevel gear is fixed to one end of the hand twisting rotating rod, and the first bevel gear is meshed with the second bevel gear. Stepless adjustment of the length of the table body bottom frame structure is achieved, and the requirement for installing table plates of multiple sizes is met.

Description

Technical Field

[0001] This utility model relates to the field of assembled table technology, specifically to a table with an adjustable bottom frame. Background Technology

[0002] Most table structures currently on the market are fixed designs, meaning the connection between the table legs and the tabletop is essentially unadjustable after installation, or can only be adjusted by removing and installing bolts. This type of structure has significant limitations when adapting to tabletops of different sizes or assembling for multi-functional scenarios, hindering users from flexibly assembling tables of various sizes to meet their specific needs.

[0003] Based on this, the present invention designs an adjustable bottom frame table to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a table with an adjustable bottom frame to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable table body, comprising: a first bottom frame, a second bottom frame, and a tabletop; a connecting tube is inserted between the first bottom frame and the second bottom frame, and a positive and negative threaded rod is rotatably connected inside the connecting tube; threaded rod sleeves are threaded to the outer walls of the two opposite threads of the positive and negative threaded rod; sliding openings are opened on the outer wall of the connecting tube corresponding to the two threaded rod sleeves; one end of the first bottom frame, the second bottom frame, and the connecting tube is detachably connected to the two threaded rod sleeves respectively; a first bevel gear is fixed to the outer wall of the positive and negative threaded rod; a hand-tightening rod is rotatably provided on the outer wall of the connecting tube; a second bevel gear is fixed to one end of the hand-tightening rod; the first bevel gear and the second bevel gear mesh with each other.

[0006] Preferably, the bottom of the first base frame and the second base frame are respectively provided with two support legs, and one end of each support leg of the first base frame and the second base frame is fixedly provided with a lockable universal wheel.

[0007] Preferably, the lead screw sleeve has a threaded groove at one end facing the slide opening, and the outer walls of the first and second bottom frames have through holes corresponding to the threaded groove. The first and second bottom frames are threadedly locked with fastening bolts through the through holes and the threaded groove.

[0008] Preferably, an auxiliary tube is fixedly connected to one end of the second bottom frame, and one end of the auxiliary tube is inserted into the first bottom frame.

[0009] Preferably, the tabletop is detachably locked to the top of the first and second bottom frames by bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] Firstly, by using a bevel gear and lead screw linkage mechanism, the adjustment efficiency is improved, and stepless adjustment of the length of the table bottom frame structure is achieved, meeting the installation needs of tabletops of various sizes.

[0012] Secondly, the detachable tabletop structure improves the convenience of maintenance and replacement. The overall structure is flexible to move and highly stable, making it suitable for office use in various scenarios and temporary assembly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0015] Figure 2 This is a front view diagram highlighting the first bottom frame and the second bottom frame in this embodiment;

[0016] Figure 3 This embodiment is a schematic diagram showing the connection of the linkage pipe to the first bottom frame;

[0017] Figure 4 This embodiment is illustrated by a schematic diagram showing the first bottom frame removed from the linkage tube.

[0018] Figure 5 This is a schematic diagram highlighting the internal structure of the linkage pipe in this embodiment;

[0019] Figure 6 This is a top view diagram highlighting the first and second bottom frames in this embodiment.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. First base frame; 2. Second base frame; 3. Lockable caster wheel; 4. Connecting pipe; 5. Positive and negative threaded rod; 6. Threaded rod sleeve block; 7. Threaded groove; 8. First bevel gear; 9. Hand-tightening rod; 10. Second bevel gear; 11. Fastening bolt; 12. Table; 13. Sliding groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution: an adjustable bottom frame table body, including: a first bottom frame 1, a second bottom frame 2 and a tabletop 12; a connecting tube 4 is inserted between the first bottom frame 1 and the second bottom frame 2, and a positive and negative threaded rod 5 is rotatably connected inside the connecting tube 4. The outer walls of the two opposite threads of the positive and negative threaded rod 5 are threaded with threaded rod sleeves 6. The outer walls of the connecting tube 4 have sliding openings 13 corresponding to the two threaded rod sleeves 6. The ends of the first bottom frame 1 and the second bottom frame 2 that are inserted into the connecting tube 4 are detachably connected to the two threaded rod sleeves 6 respectively.

[0024] The outer wall of the positive and negative threaded rod 5 is fixed with a first bevel gear 8, and the outer wall of the connecting pipe 4 is rotatably provided with a hand-tightening rod 9. One end of the hand-tightening rod 9 is fixed with a second bevel gear 10, and the first bevel gear 8 and the second bevel gear 10 mesh with each other.

[0025] The first base frame 1 and the second base frame 2 are connected by a connecting tube 4 to achieve a physical connection between the base frames. The connecting tube 4 is equipped with a positive and negative threaded rod 5, which can drive the threaded rod sleeve 6 to move in two directions at the same time. The threaded rod sleeve 6 is detachably connected to the first base frame 1 and the plug-in end of the first base frame 1, which is convenient for assembly and disassembly. The plug-in and detachable structure improves the convenience of installation and transportation and is conducive to modular application. The outer wall of the connecting tube 4 is provided with a sliding port 13, which moves in conjunction with the threaded rod sleeve 6. At the same time, the positive and negative threaded rod 5 is linked with the hand-tightening rod 9 through a bevel gear to form a simple and effective manual adjustment system. The operation is labor-saving and convenient and adaptable to different tabletop 12 sizes.

[0026] More preferably, the bottom of the first base frame 1 and the second base frame 2 are respectively provided with two support legs, and one end of each support leg of the first base frame 1 and the second base frame 2 is fixedly provided with a lockable universal wheel 3;

[0027] The legs are conventionally fixed to the support parts of the base frame structure, while the lockable casters 3 are located at the bottom of the legs. When locked, they ensure support, and when unlocked, they also allow for mobility and assist in the disassembly and assembly of the table, making it convenient to move and adjust the position of the table. This makes it suitable for temporary or flexible settings such as offices, classrooms, and exhibitions.

[0028] More preferably, the lead screw sleeve 6 has a threaded groove 7 at one end facing the slide 13, and the outer walls of the first bottom frame 1 and the second bottom frame 2 have through holes corresponding to the threaded groove 7. The first bottom frame 1 and the second bottom frame 2 are threadedly locked with fastening bolts 11 through the through holes and the threaded groove 7.

[0029] The threaded groove 7 is connected to the through hole structure by bolts to form a detachable locking device. The locking mechanism is set at the connection position between the lead screw sleeve 6 and the bottom frame. After locking, it can prevent movement. After the length is adjusted, the structural position is fixed to prevent accidental sliding or loosening.

[0030] More preferably, an auxiliary tube is fixedly connected to one end of the second bottom frame 2, and one end of the auxiliary tube is inserted into the first bottom frame 1;

[0031] As a secondary connecting component, the auxiliary tube provides a second insertion path between the bottom frames, enhancing the stability of the structural connection. The insertion structure makes the assembly process simple and quick, suitable for industrial mass production and user self-assembly.

[0032] Preferably, the tabletop 12 is detachably locked to the top of the first bottom frame 1 and the second bottom frame 2 by bolts;

[0033] The tabletop 12 is connected to the base frame by bolts, which facilitates quick assembly and disassembly. Users can replace the tabletop 12 with different sizes and styles according to their needs, which helps to compress and modularize the table structure during transportation and storage.

[0034] One specific application of this embodiment is as follows: one end of the connecting pipe 4 is inserted into the first bottom frame 1, and the other end is inserted into the second bottom frame 2. The positive and negative threaded rods 5 are inserted inside the connecting pipe 4, and their outer walls are respectively threaded to two threaded rod sleeves 6 with opposite directions. The outside of each threaded rod sleeve 6 is detachably connected to the corresponding bottom frame end, and the sliding port 13 can achieve linear guided movement in cooperation with the threaded rod sleeve 6;

[0035] When the hand-tightening lever 9, which is set on the outer wall of the combined pipe 4, is manually rotated, the first bevel gear 8, which meshes with it, is driven by the second bevel gear 10, causing the positive and negative threaded screw 5 to rotate. This causes the two threaded screw sleeves 6 to move in opposite directions, thereby achieving the stretching or compression between the first bottom frame 1 and the second bottom frame 2, thus changing the length of the bottom frame. The tabletop 12 is connected to the top of the first bottom frame 1 and the second bottom frame 2 by bolts, which makes it easy to replace the tabletop 12 of different sizes or materials and enhances adaptability.

[0036] The lead screw sleeve 6 has a threaded groove 7 at the end facing the slide 13, which, together with the through holes on the first base frame 1 and the second base frame 2, is locked by the fastening bolt 11 to achieve a stable connection of the structure and prevent slippage after adjustment. Four support legs are provided under the table body, and each support leg is equipped with a lockable universal wheel 3 at its lower end, which facilitates the movement of the table body in different places and can also achieve stable fixation through the locking function.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A table with an adjustable bottom frame, characterized in that, include: A first bottom frame (1), a second bottom frame (2), and a tabletop (12); a connecting tube (4) is inserted between the first bottom frame (1) and the second bottom frame (2), and a positive and negative threaded rod (5) is rotatably connected inside the connecting tube (4). The outer walls of the two opposite threads of the positive and negative threaded rod (5) are threaded with threaded rod sleeves (6). The outer walls of the connecting tube (4) have sliding openings (13) corresponding to the two threaded rod sleeves (6). The ends of the first bottom frame (1), the second bottom frame (2), and the connecting tube (4) that are inserted into each other are detachably connected to the two threaded rod sleeves (6). The outer wall of the positive and negative threaded screw (5) is fixed with a first bevel gear (8), and the outer wall of the connecting pipe (4) is rotatably provided with a hand-tightening rod (9). One end of the hand-tightening rod (9) is fixed with a second bevel gear (10), and the first bevel gear (8) and the second bevel gear (10) mesh with each other.

2. The adjustable tabletop with a bottom frame according to claim 1, characterized in that: The bottom of the first base frame (1) and the second base frame (2) are respectively provided with two support legs, and one end of the support legs of the first base frame (1) and the second base frame (2) is fixedly provided with a lockable universal wheel (3).

3. The adjustable tabletop with a bottom frame according to claim 1, characterized in that: The lead screw sleeve (6) has a threaded groove (7) at one end facing the slide (13). The outer walls of the first bottom frame (1) and the second bottom frame (2) have through holes corresponding to the threaded groove (7). The first bottom frame (1) and the second bottom frame (2) are threadedly locked with fastening bolts (11) through the through holes and the threaded groove (7).

4. The adjustable tabletop with a bottom frame according to claim 1, characterized in that: An auxiliary tube is fixedly connected to one end of the second bottom frame (2), and one end of the auxiliary tube is inserted into the first bottom frame (1).

5. The adjustable table body with a bottom frame according to claim 1, characterized in that: The tabletop (12) is detachably locked to the top of the first bottom frame (1) and the second bottom frame (2) by bolts.

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