Table plate support capable of being folded and stored

Abstract

The invention relates to the field of table board supports, in particular to a foldable storage table board support which comprises a storage shell, storage grooves are formed in the peripheral side walls of the storage shell, pivots are fixedly arranged at one ends of the storage grooves, a movable transverse rod is rotationally connected to each group of pivots, and containing grooves are formed in the upper end and the lower end of each movable transverse rod. An upper support is arranged in the upper containing groove, a lower support is arranged in the lower containing groove, a hollow rotating shaft is arranged at the end, away from the pivot, in the movable transverse rod, the bottom end of the upper support is rotationally matched with the hollow rotating shaft through a first rotating sleeve, and the top end of the lower support is rotationally matched with the hollow rotating shaft through a second rotating sleeve. A bolt is coaxially mounted in the hollow rotating shaft in a limiting manner, and is locked and matched with the first rotating sleeve and the second rotating sleeve at the same time, so that the upper bracket and the lower bracket are vertically supported. The folding effect of the support can be effectively improved, the whole folded support is hidden in the storage shell, the size is small, and carrying is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of table top brackets, and in particular to a foldable and storable table top bracket. Background Art

[0002] The table support is an important component that supports and fixes the table, which ensures the stability and load-bearing capacity of the tabletop. The types of table supports currently on the market mainly include fixed support frames, lifting support frames, folding support frames and splicing support frames. Among them, the folding support frame has the advantage of being easy to store and is suitable for scenes with limited space and frequent movement. The folding support frame in the prior art is relatively troublesome to stretch and fold, and the folding and storage effect is average. Summary of the invention

[0003] The purpose of the present invention is to provide a foldable storage table bracket to solve the above-mentioned technical problems.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A foldable storage table top bracket comprises a storage shell, wherein storage grooves are arranged on the side walls around the storage shell, a pivot is fixedly arranged at one end of the storage groove, a movable cross bar is rotatably connected to each group of the pivots, and receiving grooves are arranged at the upper and lower ends of the movable cross bar, an upper bracket is arranged in the upper receiving groove, and a lower bracket is arranged in the lower receiving groove, a hollow rotating shaft is arranged at the end of the movable cross bar away from the pivot, the bottom end of the upper bracket is rotatably matched with the hollow rotating shaft through a first rotating sleeve, and the top end of the lower bracket is rotatably matched with the hollow rotating shaft through a second rotating sleeve, a pin is coaxially limitedly installed inside the hollow rotating shaft, and the pin is locked with the first rotating sleeve and the second rotating sleeve at the same time to keep the upper bracket and the lower bracket vertically supported.

[0005] A cavity is provided inside the storage shell, a cover plate is provided on the top of the cavity, a driving disk is rotatably installed inside the cavity, pins are evenly provided on the upper end of the driving disk in a circumferential direction, the pin is rotatably connected to one end of a connecting rod, an ear seat is provided on the side wall of the movable cross bar, the other end of the connecting rod is rotatably connected to the ear seat, a central axis is fixedly provided in the center of the driving disk, the top end of the central axis passes through the cover plate and extends upward, a locking lever is slidably sleeved on the central axis, and the locking lever controls the driving disk to rotate a specified angle through the central axis to lock and fix the central axis.

[0006] As a further solution of the present invention: a limiting groove is axially penetrated on the outer wall of the hollow shaft, a first locking groove is axially penetrated on the inner wall of the first rotating sleeve, a second locking groove is axially penetrated on the inner wall of the second rotating sleeve, and a limiting block is axially fixedly provided on the outer wall of the latch, the limiting groove, the first locking groove, the second locking groove and the limiting block are all distributed in a cross shape, and the limiting block passes through the corresponding limiting groove and is simultaneously engaged in the first locking groove and the second locking groove.

[0007] As a further solution of the present invention: a first arc block is extended from one end of the first rotating sleeve close to the second rotating sleeve, and the first arc block is rotatably matched with the outer wall of the second rotating sleeve; a second arc block is extended from one end of the second rotating sleeve close to the first rotating sleeve, and the second arc block is rotatably matched with the outer wall of the first rotating sleeve.

[0008] As a further solution of the present invention: a built-in groove is provided on the inner wall of the upper bracket, sliding grooves are longitudinally provided on the inner walls on both sides of the built-in groove, a reinforcing strut is provided in the built-in groove, the top two ends of the reinforcing strut are slidably matched with the sliding groove through a rotating shaft, a fixed groove is provided at the bottom of the upper accommodating groove, and the bottom of the reinforcing strut is adapted to be inserted into the fixed groove.

[0009] As a further solution of the present invention: a clearance groove for the connecting rod to movably pass through is provided on the inner wall of the storage groove.

[0010] As a further solution of the present invention: locking rods are fixedly provided at the bottom of both ends of the locking rod, a locking hole corresponding to the locking rod is penetrated at the upper end of the cover plate, a through hole for the central axis to pass through is provided in the center of the locking rod, a positioning slider is provided on the hole wall of the through hole, a positioning groove is provided axially on the outer wall of the central axis, and the positioning slider is adapted to be slidably installed in the corresponding positioning groove.

[0011] As a further solution of the present invention: a swivel is rotatably mounted at the center of the top end of the locking lever, a baffle is fixedly arranged at the top end of the central axis, and a return spring is arranged between the top end of the swivel and the bottom end of the baffle.

[0012] The beneficial effects of the present invention are as follows: by providing a storage shell, a movable cross bar, an upper bracket and a lower bracket, when extending and opening, the locking lever is used to control the central axis to drive the driving disk to rotate, and the driving disk will drive multiple groups of movable cross bars to rotate outward and unfold through the connecting rod, and then the upper bracket is rotated upward from the accommodating groove to unfold to form the load-bearing end of the table top, and at the same time the lower bracket is rotated downward from the accommodating groove to unfold to form the supporting end of the overall bracket; after the extension is completed, the upper bracket and the lower bracket are locked and fixed by the latch to maintain vertical support, and the locking lever is used to lock and fix the driving disk to maintain a stable extended state; the horizontal extension process of the movable cross plate cooperates with the vertical extension process of the upper bracket and the lower bracket to effectively improve the folding and gathering effect of the bracket; the folded bracket is hidden inside the storage shell as a whole, with a small size and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the installation of the upper bracket and the lower bracket in the present invention.

[0016] Figure 3 It is a structural schematic diagram of the movable cross bar in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the upper bracket and the lower bracket in the present invention.

[0018] Figure 5 It is a schematic diagram of the locking state of the upper bracket and the lower bracket in the present invention.

[0019] Figure 6 It is a schematic diagram of the internal structure of the storage shell in the present invention.

[0020] Figure 7 It is a schematic diagram of the storage state of the movable cross bar in the present invention.

[0021] Figure 8 It is a schematic diagram of the installation of the drive disk in the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the locking lever in the present invention.

[0023] In the figure: 1, storage housing; 101, storage slot; 102, pivot; 103, yielding slot; 2, movable cross bar; 201, receiving slot; 202, ear seat; 203, hollow shaft; 2031, limiting slot; 204, fixing slot; 205, latch; 2051, limiting block; 3, upper bracket; 301, built-in slot; 302, sliding slot; 303, first rotating sleeve; 3031, first locking slot; 3032, The first arc block; 4, the lower bracket; 401, the second rotating sleeve; 4011, the second locking groove; 4012, the second arc block; 5, the reinforcing support rod; 6, the cover plate; 601, the locking hole; 7, the connecting rod; 8, the driving disk; 801, the pin shaft; 802, the center axis; 803, the positioning slide groove; 804, the baffle; 9, the locking lever; 901, the locking rod; 902, the positioning slider; 903, the rotating ring; 904, the reset spring. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 6 As shown, the present invention is a foldable storage table board bracket, including a storage shell 1, and storage grooves 101 are arranged on the side walls around the storage shell 1, and a pivot 102 is fixedly arranged at one end of the storage groove 101, and a movable cross bar 2 is rotatably connected to each group of pivots 102, and the upper and lower ends of the movable cross bar 2 are provided with accommodating grooves 201, an upper bracket 3 is arranged in the upper accommodating groove 201, and a lower bracket 4 is arranged in the lower accommodating groove 201, and a hollow rotating shaft 203 is arranged at one end of the movable cross bar 2 away from the pivot 102, and the bottom end of the upper bracket 3 is rotatably matched with the hollow rotating shaft 203 through a first rotating sleeve 303, and the top end of the lower bracket 4 is rotatably matched with the hollow rotating shaft 203 through a second rotating sleeve 401, and a pin 205 is coaxially limitedly installed inside the hollow rotating shaft 203, and the pin 205 is locked with the first rotating sleeve 303 and the second rotating sleeve 401 at the same time so that the upper bracket 3 and the lower bracket 4 maintain vertical support.

[0026] like Figure 7 and Figure 8As shown, a cavity is provided inside the storage shell 1, a cover plate 6 is provided on the top of the cavity, a driving disk 8 is rotatably installed inside the cavity, a pin shaft 801 is evenly provided on the upper end of the driving disk 8 in a circumferential direction, the pin shaft 801 is rotatably connected to one end of the connecting rod 7, an ear seat 202 is provided on the side wall of the movable cross bar 2, the other end of the connecting rod 7 is rotatably connected to the ear seat 202, a central axis 802 is fixedly provided in the center of the driving disk 8, the top end of the central axis 802 passes through the cover plate 6 and extends upward, a locking lever 9 is slidably sleeved on the central axis 802, and the locking lever 9 controls the driving disk 8 to rotate a specified angle through the central axis 802 to lock and fix the central axis 802.

[0027] Specifically, by setting a storage shell 1, a movable cross bar 2, an upper bracket 3 and a lower bracket 4, when extending and opening, the locking lever 9 is used to control the central axis 802 to drive the driving disk 8 to rotate, and the driving disk 8 will drive multiple groups of movable cross bars 2 to rotate outward and unfold through the connecting rod 7, and then the upper bracket 3 is rotated upward from the accommodating groove 201 to unfold to form the load-bearing end of the table top, and at the same time, the lower bracket 4 is rotated downward from the accommodating groove 201 to unfold to form the supporting end of the overall bracket. After the extension is completed, the upper bracket 3 and the upper bracket 3 are locked and fixed by the pin 205 to keep them vertically supported, and the locking lever 9 is used to lock and fix the driving disk 8 to keep it in a stable extended state. The horizontal extension process of the movable cross plate cooperates with the vertical extension process of the upper bracket 3 and the lower bracket 4 to effectively improve the folding and gathering effect of the bracket. The folded bracket is hidden inside the storage shell 1 as a whole, with a small size and easy to carry.

[0028] like Figure 3 , Figure 4 and Figure 5 As shown, a limiting groove 2031 is axially penetrated on the outer wall of the hollow shaft 203, a first locking groove 3031 is axially penetrated on the inner wall of the first rotating sleeve 303, a second locking groove 4011 is axially penetrated on the inner wall of the second rotating sleeve 401, and a limiting block 2051 is fixedly provided axially on the outer wall of the latch 205. The limiting groove 2031, the first locking groove 3031, the second locking groove 4011 and the limiting block 2051 are all distributed in a cross shape, and the limiting block 2051 passes through the corresponding limiting groove 2031 and is simultaneously engaged in the first locking groove 3031 and the second locking groove 4011.

[0029] Specifically, when extending and folding, the latch 205 is pulled out from the hollow shaft 203. After extending and folding, the limit block 2051 on the latch 205 is aligned with the limit slot 2031, so that the latch 205 can be accurately inserted into the hollow shaft 203. At the same time, the limit block 2051 will pass through the limit slot 2031 and be engaged in the first lock slot 3031 and the second lock slot 4011. Due to the rotation constraint of the limit block 2051, the upper bracket 3 and the lower bracket 4 will no longer be able to rotate around the hollow shaft 203, so that they can maintain a vertical support state. When folding, the latch 205 is pulled out to contact the rotation constraint of the upper bracket 3 and the lower bracket 4. When the upper bracket 3 and the lower bracket 4 are rotated 90° and folded in the accommodating groove 201, since the limiting groove 2031, the first locking groove 3031, the second locking groove 4011 and the limiting block 2051 are all distributed in a cross shape, the first locking groove 3031 and the second locking groove 4011 will still remain flush with the limiting groove 2031 after rotating 90°. At this time, the latch 205 is aligned and inserted into the hollow rotating shaft 203, and the limiting block 2051 will lock the upper bracket 3 and the lower bracket 4 again, thereby preventing the upper bracket 3 and the lower bracket 4 from escaping from the accommodating groove 201 when folded and stored.

[0030] like Figure 4 and Figure 5 As shown, a first arc block 3032 is extended from one end of the first rotating sleeve 303 close to the second rotating sleeve 401, and the first arc block 3032 is rotatably matched with the outer wall of the second rotating sleeve 401. A second arc block 4012 is extended from one end of the second rotating sleeve 401 close to the first rotating sleeve 303, and the second arc block 4012 is rotatably matched with the outer wall of the first rotating sleeve 303.

[0031] Specifically, during the rotation and extension process of the upper bracket 3, the first arc block 3032 will always maintain rotational cooperation with the second rotating sleeve 401, and when the upper bracket 3 and the lower bracket 4 are rotated 90° to maintain vertical support, the first arc block 3032 will form a stop limit with the second rotating sleeve 401, thereby limiting the maximum rotation angle of the upper bracket 3 to 90°, avoiding excessive rotation of the upper bracket 3. The second arc block 4012 is similar. It utilizes the stop limit when rotating with the first rotating sleeve 303 to constrain the maximum rotation angle of the lower bracket 4, so that the rotation and extension process of the upper bracket 3 and the lower bracket 4 are mutually limited and cooperated, which is beneficial to improve the stability during vertical support.

[0032] like Figure 2 and Figure 3As shown, a built-in groove 301 is provided on the inner wall of the upper bracket 3, and sliding grooves 302 are longitudinally provided on the inner walls on both sides of the built-in groove 301. A reinforcing strut 5 is provided in the built-in groove 301, and the top two ends of the reinforcing strut 5 are slidably matched with the sliding groove 302 through a rotating shaft. A fixing groove 204 is provided at the bottom of the upper accommodating groove 201, and the bottom of the reinforcing strut 5 is adapted to be inserted into the fixing groove 204.

[0033] Specifically, when the upper bracket 3 is supported vertically, the reinforcing support rod 5 is pulled out from the built-in groove 301 and slides downward along the sliding groove 302, and at the same time, its bottom is inserted and supported in the fixed groove 204, so that the reinforcing support rod 5 cooperates with the movable cross bar 2 and the upper bracket 3 to form a stable triangular support structure, which effectively improves the overall support structure strength of the bracket and ensures the support stability.

[0034] like Figure 6 As shown, a clearance groove 103 is provided on the inner wall of the storage groove 101 for the connecting rod 7 to movably pass through.

[0035] like Figure 8 and Fig. 9 As shown, locking rods 901 are fixedly provided at the bottom of both ends of the locking rod 9, a locking hole 601 corresponding to the locking rod 901 is penetrated at the upper end of the cover plate 6, a through hole is provided in the center of the locking rod 9 for the central axis 802 to pass through, a positioning slider 902 is provided on the hole wall of the through hole, a positioning groove 803 is provided axially on the outer wall of the central axis 802, and the positioning slider 902 is adapted to be slidably installed in the corresponding positioning groove 803.

[0036] Furthermore, a swivel 903 is rotatably mounted at the center of the top of the locking lever 9, a baffle 804 is fixedly mounted at the top of the central axis 802, and a return spring 904 is arranged between the top of the swivel 903 and the bottom of the baffle 804.

[0037] Specifically, due to the sliding cooperation between the positioning slider 902 and the positioning slot 803, the locking lever 9 can slide up and down along the central axis 802, and at the same time, the locking lever 9 can also drive the central axis 802 to rotate. When extending or folding, the locking lever 9 is pushed upward to drive the central axis 802 to rotate. When the drive disk 8 drives the movable cross plate to extend or fold through the connecting rod 7, the locking lever 9 is released. At this time, the return spring 904 applies downward pressure to the rotating ring 903, so that the locking lever 9 slides downward until the locking rod 901 is inserted into the corresponding locking hole 601, thereby realizing the locking and positioning of the drive disk 8.

[0038] The working principle of the present invention is as follows: Figure 1-Figure 9As shown, when stretched and opened, the locking lever 9 is pushed upward and drives the central axis 802 to rotate. At this time, the driving disk 8 will drive the multiple groups of movable cross bars 2 to rotate outward through the connecting rod 7, and then the upper bracket 3 is rotated upward from the accommodating groove 201 to expand to form the load-bearing end of the table top, and the lower bracket 4 is rotated downward from the accommodating groove 201 to expand to form the supporting end of the overall bracket. After the extension is completed, the limit block 2051 on the latch 205 is aligned with the limit groove 2031, so that the latch 205 can be accurately inserted into the hollow rotating shaft 203, the limit block 2051 will pass through the limit groove 2031 and be engaged in the first locking groove 3031 and the second locking groove 4011, so as to lock and fix the upper bracket 3 and the upper bracket 3, and at the same time release the locking lever 9, at this time the reset spring 904 applies downward pressure to the swivel 903, so that the locking lever 9 slides downward until the locking rod 901 is inserted into the corresponding locking hole 601, so as to realize the locking positioning of the driving disk 8. When folded and stored, the upper bracket 3 and the lower bracket 4 rotate in opposite directions and are stored in the accommodating groove 201. At the same time, the driving disk 8 drives the movable cross bar 2 to rotate in opposite directions through the connecting rod 7 so that it is engaged in the storage groove 101. The horizontal extension process of the movable cross plate cooperates with the vertical extension process of the upper bracket 3 and the lower bracket 4 to effectively improve the folding and gathering effect of the bracket. The folded bracket is hidden in the storage shell 1 as a whole, with a small size and easy to carry.

[0039] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A foldable storage table support, comprising a storage shell (1), characterized in that: The storage housing (1) is provided with storage grooves (101) on the side walls around the storage housing. A pivot (102) is fixedly provided at one end of the storage groove (101). A movable cross bar (2) is rotatably connected to each set of the pivots (102). The movable cross bar (2) is provided with receiving grooves (201) at both upper and lower ends. An upper bracket (3) is provided in the upper receiving groove (201). A lower bracket (4) is provided in the lower receiving groove (201). The movable cross bar (2) is provided with a portion of the interior of the movable cross bar (2) away from the pivot (102). A hollow rotating shaft (203) is arranged at one end, the bottom end of the upper bracket (3) is rotatably matched with the hollow rotating shaft (203) through a first rotating sleeve (303), and the top end of the lower bracket (4) is rotatably matched with the hollow rotating shaft (203) through a second rotating sleeve (401), and a latch (205) is coaxially limitedly installed inside the hollow rotating shaft (203), and the latch (205) is locked with the first rotating sleeve (303) and the second rotating sleeve (401) at the same time so that the upper bracket (3) and the lower bracket (4) maintain vertical support; A cavity is provided inside the storage shell (1), a cover plate (6) is provided at the top of the cavity, a drive disk (8) is rotatably installed inside the cavity, a pin shaft (801) is evenly provided at the upper end of the drive disk (8) in the circumferential direction, the pin shaft (801) is rotatably connected to one end of a connecting rod (7), an ear seat (202) is provided on the side wall of the movable cross bar (2), the other end of the connecting rod (7) is rotatably connected to the ear seat (202), a central shaft (802) is fixedly provided at the center of the drive disk (8), the top end of the central shaft (802) passes through the cover plate (6) and extends upward, a locking lever (9) is slidably sleeved on the central shaft (802), and the locking lever (9) controls the drive disk (8) to rotate to a specified angle through the central shaft (802) to lock and fix the central shaft (802).

2. The foldable storage table support according to claim 1, characterized in that: A limiting groove (2031) is axially penetrated on the outer wall of the hollow rotating shaft (203); a first locking groove (3031) is axially penetrated on the inner wall of the first rotating sleeve (303); a second locking groove (4011) is axially penetrated on the inner wall of the second rotating sleeve (401); a limiting block (2051) is axially fixedly arranged on the outer wall of the latch (205); the limiting groove (2031), the first locking groove (3031), the second locking groove (4011) and the limiting block (2051) are all arranged in a cross shape; the limiting block (2051) passes through the corresponding limiting groove (2031) and is simultaneously engaged in the first locking groove (3031) and the second locking groove (4011).

3. The foldable storage table support according to claim 2, characterized in that: A first arc block (3032) is extended from one end of the first rotating sleeve (303) close to the second rotating sleeve (401), and the first arc block (3032) is rotatably matched with the outer wall of the second rotating sleeve (401); a second arc block (4012) is extended from one end of the second rotating sleeve (401) close to the first rotating sleeve (303), and the second arc block (4012) is rotatably matched with the outer wall of the first rotating sleeve (303).

4. The foldable storage table support according to claim 1, characterized in that: The upper bracket (3) is provided with a built-in groove (301) on the inner wall, and sliding grooves (302) are longitudinally provided on the inner walls on both sides of the built-in groove (301). A reinforcing support rod (5) is provided in the built-in groove (301), and the top two ends of the reinforcing support rod (5) are slidably matched with the sliding groove (302) through a rotating shaft, and a fixing groove (204) is provided at the bottom of the upper accommodating groove (201), and the bottom of the reinforcing support rod (5) is adapted to be inserted into the fixing groove (204).

5. The foldable storage table support according to claim 1, characterized in that: The inner wall of the storage groove (101) is provided with a clearance groove (103) through which the connecting rod (7) can movably pass.

6. The foldable storage table support according to claim 1, characterized in that: The bottom of both ends of the locking lever (9) are fixedly provided with locking rods (901); the upper end of the cover plate (6) is penetrated by a locking hole (601) corresponding to the locking rod (901); the center of the locking lever (9) is provided with a through hole for the central shaft (802) to pass through; a positioning slide block (902) is provided on the hole wall of the through hole; a positioning groove (803) is provided on the outer wall of the central shaft (802) along the axial direction; and the positioning slide block (902) is adapted to be slidably installed in the corresponding positioning groove (803).

7. The foldable storage table support according to claim 6, characterized in that: A rotating ring (903) is rotatably mounted at the center of the top end of the locking lever (9), a baffle (804) is fixedly arranged at the top end of the central shaft (802), and a return spring (904) is arranged between the top end of the rotating ring (903) and the bottom end of the baffle (804).

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