A large folding table that is easy to store

Abstract

The present invention relates to a large folding table that is easy to store, and belongs to the technical field of tables. The table comprises a bracket, a connecting frame and a table are arranged on the bracket, a pulley is arranged at the bottom of the bracket, and a positioning structure is arranged inside the connecting frame. The large folding table that is easy to store uses a left locking tongue to insert into the interior of a positioning wheel, and a right locking tongue to clamp a protrusion of the table, so as to stably connect the connecting frame and the table. When not in use, the top rack is driven to move to the left by pulling a steel wire rope, so that the moving rack drives the left locking tongue through mechanical transmission, and the two locking tongues are controlled to move to opposite sides, and the fixing of the positioning wheel and the protrusion of the table is released. By flipping the table upright, and then loosening the steel wire rope and under the action of a telescopic spring, the two locking tongues move to opposite sides until the left locking tongue is inserted into the positioning wheel, thereby fixing the upright table to realize folding the table, so that the space occupied when storing the large folding table is smaller.

Description

Technical Field

[0001] The invention relates to the technical field of tables, in particular to a large folding table that is easy to store. Background Art

[0002] A table is a common piece of furniture, usually consisting of a desktop and a supporting structure. It is used for placing objects, working, dining or performing other activities. It can be divided into desks, dining tables, office tables and coffee tables according to their uses. It can be divided into rectangular tables, square tables, round tables and oval tables according to their shapes. It can be divided into wooden tables, metal tables, glass tables and plastic tables according to their materials. In addition, with the development of technology, electric lifting tables, foldable tables and modular tables have also been developed. The modular tables are mainly composed of structures such as desks and supporting frames. Usually, modular tables are larger tables, which are designed into two parts that can be combined, so that they can be split and placed when not in use, thereby occupying less space.

[0003] In the current prior art, foldable tables are generally smaller-sized tables, while large-sized tables are mostly modular tables. Although modular tables can be disassembled and placed when not in use, in actual use, after the table top and support frame of the modular table are assembled, once a certain direction of the table top is subjected to excessive force, it is easy to cause the table top to tip over, thereby affecting its use. In addition, for large-sized tables, it is also difficult to adjust the height for easy use. Therefore, a large foldable table that is easy to store is proposed to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a large folding table that is easy to store, has the advantages of folding and storage, and height adjustment, etc., and solves the problem that foldable tables are generally smaller-sized tables, while large-sized tables are mostly modular tables. Although the modular tables can be disassembled and placed when not in use, during actual use, after the table top and the support frame of the modular table are assembled, once a certain direction of the table top is subjected to excessive force, it is easy to cause the table top to tip over, thereby affecting use. In addition, for large-sized tables, it is also difficult to adjust the height for easy use.

[0005] To achieve the above object, the present invention provides the following technical solution: a large folding table that is easy to store, comprising a bracket, a connecting frame and a table top are arranged on the bracket, a pulley is arranged at the bottom of the bracket, and a positioning structure is arranged inside the connecting frame;

[0006] The positioning structure includes a connecting rod rotatably installed between the front and rear side walls of the inner cavity of the connecting frame and with two ends respectively passing through and extending to the outside of the connecting frame, the two ends of the connecting rod are respectively fixedly connected to the front and rear side walls of the inner cavity of the table, the outer surface of the connecting rod is fixedly installed with a positioning wheel located inside the connecting frame, a mounting rod is rotatably installed between the front and rear side walls of the inner cavity of the connecting frame, a gear ring is fixedly installed on the outer surface of the mounting rod, two racks respectively meshing with the outer surfaces of the gear rings are slidably installed inside the connecting frame, and locking tongues for fixing the positioning wheel and the protrusions of the table are respectively connected to the two racks, a guide component for limiting the left and right movement trajectories of the two racks is provided inside the connecting frame, and a control component for controlling the two locking tongues is provided inside the connecting frame.

[0007] Furthermore, the control component includes a support plate fixedly installed between the front and rear side walls of the inner cavity of the connecting frame, a guide sleeve is fixedly installed inside the connecting frame, and a steel wire rope with one end passing through the guide sleeve and fixedly connected to the right locking tongue is provided on the outside of the connecting frame, and the outer surface of the steel wire rope is sleeved with a telescopic spring located on the right side of the support plate.

[0008] Furthermore, the bracket includes a plug-in column fixedly installed on the bottom of the connecting frame, an external fork frame is provided at the bottom of the plug-in column, and a plug-in column with one end penetrating and extending into the interior of the external fork frame is fixedly installed at the bottom of the plug-in column, and two positioning balls for fixing the plug-in column are installed inside the external fork frame, and a limiting cylinder is slidably installed on the outer surface of the external fork frame, and limiting blocks for limiting the position of the positioning balls are fixedly installed on the left and right side walls of the inner cavity of the limiting cylinder, and a threaded sleeve threadedly connected to the outer surface of the limiting cylinder is rotatably installed on the outer surface of the external fork frame, and an anti-slip component is installed on the threaded sleeve.

[0009] Furthermore, the pulley is fixedly installed on the bottom of the outer fork frame, the connecting frame is fixedly connected to the top of the connecting column, and the table is sleeved on the outer surface of the connecting frame.

[0010] Furthermore, two slots are provided on the outer surface of the positioning wheel, one end of the left locking tongue passes through the slot and extends to the inside of the positioning wheel, the angle between the two slots is ninety degrees, and the left locking tongue is fixedly connected to the rack at the bottom.

[0011] Furthermore, the guide component includes two guide rods, both of which are fixedly installed inside the connecting frame, one end of the two guide rods passes through two racks respectively, and the inner wall of the rack is slidably connected to the outer surface of the guide rod.

[0012] Furthermore, a connecting piece is fixedly connected to the outer surface of the steel wire rope, the top of the connecting piece is fixedly connected to the bottom of the top rack, one end of the steel wire rope passes through the support plate and is slidably connected to the inner wall of the support plate, and one end of the steel wire rope is fixedly connected to a pull ring located outside the connecting frame.

[0013] Furthermore, the left side of the telescopic spring is fixedly connected to the right side of the support plate, and the right side of the telescopic spring is fixedly connected to one end of the right locking tongue.

[0014] Furthermore, installation grooves are provided on both sides of the outer fork frame, one end of the two limit blocks respectively penetrates and extends into the interior of the two installation grooves, and the two positioning balls are respectively installed in the interior of the two installation grooves and one end of the positioning balls penetrates and extends to the plug-in column.

[0015] Furthermore, the anti-slip component includes a rectangular groove and an anti-slip rubber strip, the rectangular groove is opened on the outer surface of the threaded sleeve, and the anti-slip rubber strip is fixedly installed inside the rectangular groove.

[0016] Compared with the prior art, the present invention provides a large folding table that is easy to store and has the following beneficial effects:

[0017] The folding table is convenient for storage and is provided with a positioning wheel and a locking tongue, so that the locking tongue on the left side is driven by the rack to insert into the interior of the positioning wheel, thereby fixing the angle of the positioning wheel and the connecting rod, and then the right locking tongue is squeezed by the elasticity of the telescopic spring to clamp the protrusion of the table, so that the connecting frame and the table can be stably connected to avoid the table from tipping over due to uneven force. When not in use, the top rack is driven to move to the left side by pulling the steel wire rope, so that the moving rack drives the left locking tongue through mechanical transmission, and the two locking tongues are controlled to move to opposite sides, thereby releasing the fixation of the positioning wheel and the protrusion of the table, and then the table is turned over and erected, and then the steel wire rope is loosened and the two locking tongues move to opposite sides under the action of the telescopic spring until the left locking tongue is inserted into the positioning wheel, thereby fixing the erected table to realize folding the table, so that the space occupied when the large folding table is stored is smaller.

[0018] 2. The large folding table that is easy to store is realized by rotating the threaded sleeve and controlling the limit cylinder to move downward, so that the moving limit cylinder drives the limit block to move synchronously, thereby releasing the position restriction of the positioning ball. Subsequently, the unfolded table is lifted and the threaded sleeve is rotated in the opposite direction, thereby controlling the limit cylinder to drive the limit block to squeeze the positioning ball until the positioning ball is stuck in the plug-in column, thereby fixing the height of the bracket and adjusting the use height of the table. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure proposed by the present invention;

[0020] Figure 2 The structure of the present invention is shown in FIG. Figure 1 A magnified view of the connection box in the middle;

[0021] Figure 3 A three-dimensional schematic diagram of the structural connection frame, the locking tongue and the connecting rod proposed by the present invention;

[0022] Figure 4 The structure of the present invention is shown in FIG. Figure 1 A cross-sectional view of the middle bracket;

[0023] Figure 5 The structure of the present invention is shown in FIG. Figure 4 Enlarged view of point A in .

[0024] In the figure: 1. bracket; 11. outer fork frame; 12. connecting column; 13. plug-in column; 141. positioning ball; 142. limiting cylinder; 143. limiting block; 144. threaded sleeve; 145. anti-slip component; 2. table; 3. connecting frame; 31. connecting rod; 32. positioning wheel; 33. mounting rod; 34. gear ring; 35. rack; 36. locking tongue; 37. guide component; 38. support plate; 39. guide sleeve; 40. wire rope; 41. telescopic spring; 5. pulley. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 -5. In this embodiment, a large folding table that is easy to store includes a bracket 1, a connecting frame 3 and a table 2 are provided on the bracket 1, a pulley 5 is provided at the bottom of the bracket 1, a positioning structure is provided inside the connecting frame 3, and the table 2 is sleeved on the outer surface of the connecting frame 3.

[0027] In the implementation of this example, the positioning structure includes a connecting rod 31 rotatably installed between the front and rear side walls of the inner cavity of the connecting frame 3 and with both ends respectively passing through and extending to the outside of the connecting frame 3. The two ends of the connecting rod 31 are respectively fixedly connected to the front and rear side walls of the inner cavity of the table 2. A positioning wheel 32 located inside the connecting frame 3 is fixedly installed on the outer surface of the connecting rod 31. A mounting rod 33 is rotatably installed between the front and rear side walls of the inner cavity of the connecting frame 3. A gear ring 34 is fixedly installed on the outer surface of the mounting rod 33. Two racks 35 that are respectively meshed with the outer surfaces of the gear ring 34 are slidably installed inside the connecting frame 3. Locking tongues 36 for fixing the positioning wheel 32 and the protrusion of the table 2 are respectively connected to the two racks 35, so that the locking tongues 36 can be used to fix the positioning wheel 32 and the protrusion of the table 2. A guide component 37 for limiting the left and right movement trajectory of the two racks 35 is provided inside the connecting frame 3. A control component for controlling the two locking tongues 36 is provided inside the connecting frame 3.

[0028] Among them, two slots are provided on the outer surface of the positioning wheel 32, and one end of the left locking tongue 36 passes through the slot and extends to the inside of the positioning wheel 32. The angle between the two slots is ninety degrees. The left locking tongue 36 is fixedly connected to the bottom rack 35, so that the locking tongue 36 can be inserted into the inside of the slot to fix the position of the positioning wheel 32 and fix the left side of the table 2.

[0029] In addition, the guide component 37 includes two guide rods, both of which are fixedly installed inside the connecting frame 3. One end of the two guide rods passes through two racks 35 respectively, and the inner wall of the rack 35 is slidably connected to the outer surface of the guide rod, thereby limiting the rack 35 to move left and right only on the outer surface of the guide rod.

[0030] By adopting the above technical solution, the moving wire rope 40 is used to drive the top rack 35 to slide to the left, so that the moving top rack 35 drives the gear ring 34 meshing with it to rotate, and the gear ring 34 drives the bottom rack 35 to move to the right, and then the moving bottom rack 35 is used to pull the left lock tongue 36 to the right out of the interior of the positioning wheel 32, thereby releasing the restriction on the positioning wheel 32, and the user can fold the table 2 for storage by flipping it over.

[0031] In the present embodiment, the control component includes a support plate 38 fixedly installed between the front and rear side walls of the inner cavity of the connecting frame 3, a guide sleeve 39 fixedly installed inside the connecting frame 3, and a steel wire rope 40 with one end passing through the guide sleeve 39 and fixedly connected to the right side locking tongue 36 is provided on the outside of the connecting frame 3. The outer surface of the steel wire rope 40 is sleeved with a telescopic spring 41 located on the right side of the support plate 38, the left side of the telescopic spring 41 is fixedly connected to the right side of the support plate 38, and the right side of the telescopic spring 41 is fixedly connected to one end of the right side locking tongue 36, so as to utilize the elasticity of the telescopic spring 41 and squeeze the right side locking tongue 36 to move to the right, thereby fixing the protrusion of the table 2.

[0032] Among them, the outer surface of the wire rope 40 is fixedly connected with a connecting piece, the top of the connecting piece is fixedly connected to the bottom of the top rack 35, one end of the wire rope 40 passes through the support plate 38 and is slidably connected to the inner wall of the support plate 38, and one end of the wire rope 40 is fixedly connected with a pull ring located outside the connecting frame 3, so that the pull ring can be used to drive the wire rope 40 to move.

[0033] By adopting the above technical solution, the pull ring is pulled downward, so that the pull ring drives the wire rope 40 to move, and then the moving wire rope 40 drives the right locking tongue 36 to move to the left and compress the telescopic spring 41, thereby releasing the right locking tongue 36 from fixing the protrusion of the table 2.

[0034] In the implementation of this example, the bracket 1 includes a connecting column 12 fixedly installed at the bottom of the connecting frame 3, an external fork frame 11 is provided at the bottom of the connecting column 12, and a plug-in column 13 with one end penetrating and extending into the outer fork frame 11 is fixedly installed at the bottom of the plug-in column 13, and two positioning balls 141 for fixing the plug-in column 13 are installed inside the outer fork frame 11, and a limiting cylinder 142 is slidably installed on the outer surface of the outer fork frame 11, and the left and right side walls of the inner cavity of the limiting cylinder 142 are fixedly installed with limiting blocks 143 for limiting the position of the positioning ball 141, and a threaded sleeve 144 threadedly connected to the outer surface of the limiting cylinder 142 is rotatably installed on the outer surface of the outer fork frame 11, and an anti-slip component 145 is installed on the threaded sleeve 144, and the pulley 5 is fixedly installed at the bottom of the external fork frame 11, and the connecting frame 3 is fixedly connected to the top of the connecting column 12.

[0035] Among them, installation grooves are opened on the left and right sides of the outer fork frame 11, one end of the two limit blocks 143 respectively penetrates and extends to the inside of the two installation grooves, and the two positioning balls 141 are respectively installed in the inside of the two installation grooves and one end of the positioning ball 141 penetrates and extends to the plug-in column 13, so that the positioning ball 141 is conveniently squeezed by the limit block 143, so that the positioning ball 141 is embedded in the inside of the plug-in column 13, thereby fixing the height of the bracket 1.

[0036] By adopting the above technical solution, it is possible to rotate the threaded sleeve 144 and control the limiting cylinder 142 to move downward, so that the moving limiting cylinder 142 drives the limiting block 143 to move synchronously, thereby releasing the position restriction on the positioning ball 141. Subsequently, by lifting the unfolded table 2 and then rotating the threaded sleeve 144 in the opposite direction, the limiting cylinder 142 is controlled to drive the limiting block 143 to squeeze the positioning ball 141 until the positioning ball 141 is inserted into the plug-in column 13, thereby fixing the height of the bracket 1 and adjusting the use height of the table 2.

[0037] The working principle of the above embodiment is:

[0038] The user can then turn over the table 2, then release the wire rope 40 and under the action of the telescopic spring 41, the two locking tongues 36 move to the opposite side until the left locking tongue 36 is inserted into the positioning wheel 32, thereby fixing the erected table 2, and folding the table 2 for storage.

[0039] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large folding table that is easy to store, comprising a bracket (1), characterized in that: The support (1) is provided with a connection frame (3) and a table (2), a pulley (5) is provided at the bottom of the support (1), and a positioning structure is provided inside the connection frame (3); The positioning structure comprises a connecting rod (31) rotatably mounted between the front and rear side walls of the inner cavity of the connecting frame (3), and the two ends of the connecting rod (31) respectively penetrate and extend to the outside of the connecting frame (3), the two ends of the connecting rod (31) are respectively fixedly connected to the front and rear side walls of the inner cavity of the table (2), the outer surface of the connecting rod (31) is fixedly mounted with a positioning wheel (32) located inside the connecting frame (3), and a mounting rod (33) is rotatably mounted between the front and rear side walls of the inner cavity of the connecting frame (3), and the outer surface of the mounting rod (33) is fixedly mounted with a positioning wheel (32) located inside the connecting frame (3). A toothed ring (34) is fixedly installed, and two racks (35) respectively meshing with the outer surface of the toothed ring (34) are slidably installed inside the connection frame (3), and the two racks (35) are respectively connected with locking tongues (36) for fixing the positioning wheel (32) and the protrusions of the table (2), and a guide component (37) for limiting the left and right movement trajectories of the two racks (35) is arranged inside the connection frame (3), and a control component for controlling the two locking tongues (36) is arranged inside the connection frame (3).

2. A large foldable table that is easy to store according to claim 1, characterized in that: The control assembly comprises a support plate (38) fixedly mounted between the front and rear side walls of the inner cavity of the connection frame (3); a guide sleeve (39) is fixedly mounted inside the connection frame (3); a steel wire rope (40) having one end passing through the guide sleeve (39) and fixedly connected to the right locking tongue (36) is arranged outside the connection frame (3); and a telescopic spring (41) located on the right side of the support plate (38) is sleeved on the outer surface of the steel wire rope (40).

3. The large foldable table that is easy to store according to claim 1, characterized in that: The bracket (1) comprises a connecting column (12) fixedly mounted on the bottom of the connecting frame (3); an external fork frame (11) is arranged at the bottom of the connecting column (12); a plug-in column (13) having one end penetrating and extending into the interior of the external fork frame (11) is fixedly mounted on the bottom of the plug-in column (13); two positioning balls (141) for fixing the plug-in column (13) are installed inside the external fork frame (11); a limiting cylinder (142) is slidably mounted on the outer surface of the external fork frame (11); limiting blocks (143) for limiting the position of the positioning balls (141) are fixedly mounted on the left and right side walls of the inner cavity of the limiting cylinder (142); a threaded sleeve (144) threadedly connected to the outer surface of the limiting cylinder (142) is rotatably mounted on the outer surface of the external fork frame (11); an anti-slip component (145) is installed on the threaded sleeve (144).

4. The large foldable table that is easy to store according to claim 3, characterized in that: The pulley (5) is fixedly mounted on the bottom of the outer fork frame (11), the connecting frame (3) is fixedly connected to the top of the connecting column (12), and the table (2) is sleeved on the outer surface of the connecting frame (3).

5. The large foldable table that is easy to store according to claim 1, characterized in that: The outer surface of the positioning wheel (32) is provided with two slots, one end of the left locking tongue (36) passes through the slots and extends to the inside of the positioning wheel (32), the angle between the two slots is ninety degrees, and the left locking tongue (36) is fixedly connected to the rack (35) at the bottom.

6. The large foldable table that is easy to store according to claim 1, characterized in that: The guide component (37) includes two guide rods, both of which are fixedly installed inside the connection frame (3), one end of the two guide rods respectively passes through two racks (35), and the inner wall of the rack (35) is slidably connected to the outer surface of the guide rod.

7. The large foldable table that is easy to store according to claim 2, characterized in that: The outer surface of the steel wire rope (40) is fixedly connected to a connecting piece, the top of the connecting piece is fixedly connected to the bottom of the top rack (35), one end of the steel wire rope (40) passes through the support plate (38) and is slidably connected to the inner wall of the support plate (38), and one end of the steel wire rope (40) is fixedly connected to a pull ring located outside the connection frame (3).

8. The large foldable table that is easy to store according to claim 2, characterized in that: The left side of the telescopic spring (41) is fixedly connected to the right side of the support plate (38), and the right side of the telescopic spring (41) is fixedly connected to one end of the right locking tongue (36).

9. The large foldable table that is easy to store according to claim 3, characterized in that: The left and right sides of the outer fork frame (11) are both provided with installation grooves, one end of the two limit blocks (143) respectively penetrates and extends into the inside of the two installation grooves, and the two positioning balls (141) are respectively installed in the inside of the two installation grooves and one end of the positioning balls (141) penetrates and extends onto the plug-in column (13).

10. The large foldable table that is easy to store according to claim 3, characterized in that: The anti-slip component (145) comprises a rectangular groove and an anti-slip rubber strip, wherein the rectangular groove is opened on the outer surface of the threaded sleeve (144), and the anti-slip rubber strip is fixedly installed inside the rectangular groove.

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