Gravity self-locking turnover mechanism and gravity turnover table

Abstract

The utility model provides a gravity self-locking turnover mechanism and a gravity turnover table, the gravity self-locking turnover mechanism comprises: a fixed connecting rod, one end of the fixed connecting rod is fixed, and the other end of the fixed connecting rod is inclined upwards; one end of the overturning connecting rod is hinged with the other end of the fixed connecting rod; one end of the first connecting rod is hinged with the other end of the overturning connecting rod; one end of the second connecting rod is hinged to the other end of the first connecting rod, and the other end of the second connecting rod is hinged to one end of the fixed connecting rod; one end of the locking connecting rod is hinged to the first connecting rod, a limiting clamping groove matched with the limiting column is formed in the locking connecting rod, and the locking connecting rod is in lap joint with the limiting column; according to the turnover table, the turnover mechanism which can be self-locked through gravity according to the turnover angle is utilized, the technical effect that state switching of the turnover table does not need manual operation is achieved, and the problem that in the prior art, the turnover table limits the form of the table plate through manual switching of a locking structure, and the switching process of the turnover table becomes complex is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding tables, in particular to a gravity self-locking flipping mechanism and a gravity flipping table. Background Art

[0002] Tables are widely used as an indispensable piece of furniture. According to their uses, they are divided into office desks, dining tables, classroom desks, computer desks, lecture tables, and writing desks. Similarly, according to their structures, they can be divided into height-adjustable lifting tables, foldable expansion tables, and flip tables that can be unfolded and stored by flipping;

[0003] The flip tables in the prior art mostly limit the shape of the table top by manually switching the locking structure, which makes the switching process of the flip table complicated. Therefore, there is a need for a flip table with a locking structure that can be automatically locked, so that the switching of the flip table state is more convenient. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a gravity self-locking flipping mechanism and a gravity flipping table, so as to solve the problem that the flipping table of the prior art limits the shape of the table top by manually switching the locking structure, making the switching process of the flipping table complicated.

[0005] In order to solve the above technical problems, the utility model provides a gravity self-locking flipping mechanism, comprising:

[0006] A fixed connecting rod, one end of which is fixed and the other end of which is inclined upward;

[0007] A flip connecting rod, one end of which is hinged to the other end of the fixed connecting rod;

[0008] a first connecting rod, one end of which is hinged to the other end of the flip connecting rod;

[0009] A second connecting rod, one end of which is hinged to the other end of the first connecting rod, and the other end of which is hinged to one end of the fixed connecting rod, and a limiting column is provided on the second connecting rod;

[0010] A locking link, one end of which is hinged on the first link, and a limiting slot adapted to the limiting column is provided on the locking link, and the locking link is overlapped on the limiting column. When the flip link flips toward the horizontal position around the hinge point with the second link, the locking link slides downward under the action of gravity, and when flipped to the horizontal position, the limiting column slides into the limiting slot to limit the flip link; when the flip link flips toward the vertical position around the hinge point with the second link, the locking link is lifted to make the limiting column disengage from the limiting slot, releasing the limit, thereby realizing the flipping of the flip link to the vertical position.

[0011] As a more preferred manner, when the flip link is in a vertical position, the length of the third side of the triangle formed by the fixed link and the flip link is equal to the sum of the lengths of the first link and the second link. When the flip link flips to a vertical position around the hinge point with the second link, the first link and the second link are pulled to be collinear and become the third side of the triangle formed by the fixed link and the flip link. The flip link cannot continue to flip, and the gravity self-locking flip mechanism is stable.

[0012] As a more preferred manner, the edge of the limiting slot is provided with a rounded structure to facilitate the limiting column to slide into the limiting slot, making it easier to limit the flip connecting rod.

[0013] As a more preferred manner, one end of the locking link is hinged to one end of the first link.

[0014] In order to solve the above problems, the utility model also provides a gravity flip table, comprising:

[0015] The above-mentioned gravity self-locking flipping mechanism;

[0016] A supporting leg, one end of a fixed connecting rod being fixed to the supporting leg;

[0017] The table top is fixed to the flip connecting rod. When the flip connecting rod is flipped to a horizontal position, the table top is in an unfolded state; when the flip connecting rod is flipped toward a vertical position, the table top switches to a stored state.

[0018] As a more preferred embodiment, the gravity flip table includes two symmetrically arranged gravity self-locking flipping mechanisms. The two gravity self-locking flipping mechanisms can better support the table top and are less likely to deviate sideways.

[0019] As a more preferred manner, the two flip connecting rods are fixed to the table top and are symmetrical about the center of the table top, so that the center of gravity of the gravity flip table of the utility model can be ensured to be at the center of the table top, thereby increasing stability.

[0020] As a more preferred embodiment, the gravity flip table further comprises a lifting handle, wherein the lifting handle is connected to the other ends of the two locking rods to facilitate lifting the locking rods.

[0021] As a more preferred embodiment, the gravity flip table also includes a fixed plate, the two fixed connecting rods are respectively fixed to the two sides of the fixed plate, the fixed plate is fixed to the top of the supporting leg, and the fixed plate is used to fix the two fixed connecting rods of the gravity self-locking flipping mechanism, so that the structure is more solid.

[0022] As a more preferred embodiment, the gravity flip table further comprises a support, and the bottom of the supporting leg is fixed to the support. The support can increase the bottom area of ​​the gravity flip table and improve stability.

[0023] As described above, the gravity self-locking flipping mechanism and the gravity flipping table of the utility model have the following beneficial effects: when the gravity self-locking flipping mechanism of the utility model is in use, when the flipping link flips toward a horizontal position around the hinge point with the second link, the first link rotates around the hinge point with the flipping link, and the second link rotates around the hinge point with the fixed link, and at the same time the locking link slides downward under the action of gravity. Since the locking link is overlapped on the limiting column, when the flipping link flips to a horizontal position, the limiting column slides into the limiting slot to limit the flipping link. When the flipping link flips toward a vertical position around the hinge point with the second link, the locking link is lifted so that the limiting column moves out of the limiting slot. The turning link is disengaged from the middle and the limit is released, thereby realizing the turning of the turning link toward the vertical position; the gravity self-locking turning mechanism of the utility model realizes the automatic locking of the locking mechanism by using gravity, and no manual operation is required, making the entire turning process more convenient and quick; the gravity turning table of the utility model uses the above-mentioned gravity self-locking turning mechanism, so that the gravity turning table can be switched between the unfolded state and the stored state more convenient and quick; the gravity self-locking turning mechanism and the gravity turning table of the utility model can realize the technical effect of switching the turning table state without manual operation by using the turning mechanism that can self-lock by gravity according to the turning angle, and solves the problem that the turning table of the prior art limits the shape of the table top by manually switching the locking structure, making the switching process of the turning table complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic diagram of the gravity self-locking flipping mechanism and the gravity flipping table of the utility model;

[0025] Figure 2 Display as Figure 1 A partial enlarged view of the middle area A;

[0026] Figure 3 Shown is a schematic diagram of the gravity flip table of the utility model in a storage state;

[0027] Figure 4 It is a schematic diagram showing the gravity flip table of the present invention switching from a storage state to an unfolded state;

[0028] Figure 5 Shown is a schematic diagram of the gravity flip table of the present invention in an unfolded state.

[0029] Component number description

[0030] 1 Gravity self-locking flip mechanism

[0031] 11 Fixed connecting rod

[0032] 12 Flip connecting rod

[0033] 13 First connecting rod

[0034] 14 Second connecting rod

[0035] 141 Limiting column

[0036] 15 Locking rod

[0037] 151 Limiting slot

[0038] 16 Fixing plate

[0039] 17 Handle

[0040] 2 Table Tops

[0041] 3 Support Leg

[0042] 4 Support DETAILED DESCRIPTION

[0043] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0044] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., can be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0047] like Figures 1 to 5 As shown, the utility model provides a gravity self-locking flipping mechanism 1, comprising:

[0048] A fixed connecting rod 11, one end of which is fixed and the other end of which is tilted upward;

[0049] A flip connecting rod 12, one end of which is hinged to the other end of the fixed connecting rod 11;

[0050] A first connecting rod 13, one end of which is hinged to the other end of the flip connecting rod 12;

[0051] A second connecting rod 14, one end of which is hinged to the other end of the first connecting rod 13, and the other end of which is hinged to one end of the fixed connecting rod 11, and a limiting column 141 is provided on the second connecting rod 14;

[0052] A locking link 15, one end of which is hinged on the first link 13, and a limiting slot 151 adapted to the limiting column 141 is provided on the locking link 15. The locking link 15 is overlapped on the limiting column 141. When the flip link 12 flips toward the horizontal position around the hinge point with the second link 14, the locking link 15 slides downward under the action of gravity, and when flipped to the horizontal position, the limiting column 141 slides into the limiting slot 151 to limit the flip link 12; when the flip link 12 flips toward the vertical position around the hinge point with the second link 14, the locking link 15 is lifted to make the limiting column 141 disengage from the limiting slot 151, releasing the limit, thereby realizing the flipping of the flip link 12 to the vertical position.

[0053] When the gravity self-locking turning mechanism 1 of the utility model is in use, when the turning link 12 turns toward the horizontal position around the hinge point with the second link 14, as shown in FIG. Figure 4 As shown, the first link 13 rotates around the hinge point with the flip link 12, the second link 14 rotates around the hinge point with the fixed link 11, and at the same time the locking link 15 slides downward under the action of gravity. Since the locking link 15 is overlapped on the limiting column 141, when the flip link 12 is flipped to the horizontal position, the limiting column 141 slides into the limiting slot 151. Figure 5 As shown, the flip link 12 is limited. When the flip link 12 flips toward the vertical position around the hinge point with the second link 14, the locking link 15 is pulled to make the limiting column 141 disengage from the limiting slot 151, thereby releasing the limit, thereby realizing the flipping of the flip link 12 toward the vertical position. Figure 3 As shown; the gravity self-locking flipping mechanism 1 of the present invention utilizes gravity to realize automatic locking of the locking mechanism, without manual operation, making the entire flipping process more convenient and quick; the gravity flipping table of the present invention uses the above-mentioned gravity self-locking flipping mechanism 1, so that the gravity flipping table can be switched between the unfolded state and the stored state more conveniently and quickly.

[0054] In this embodiment, if Figure 5 As shown, when the flip link 12 flips to the horizontal position and the limit post 141 slides into the limit slot 151, the first link 13, the section from one end of the second link 14 to the limit post 141, and the section from one end of the locking link 15 to the limit post 141, a total of three sections together enclose the three sides of a triangle. Because the triangle has stability, the gravity self-locking flip mechanism 1 can be stable when fixed at this time, that is, the flip link 12 can be stable in the horizontal position.

[0055] In this embodiment, if Figure 3 As shown, when the flip link 12 is in a vertical position, the length of the third side of the triangle formed by the fixed link 11 and the flip link 12 is equal to the sum of the lengths of the first link 13 and the second link 14. When the flip link 12 flips to a vertical position around the hinge point with the second link 14, the first link 13 and the second link 14 are pulled to be collinear, becoming the third side of the triangle formed by the fixed link 11 and the flip link 12. The flip link 12 cannot continue to flip, and the gravity self-locking flip mechanism 1 is stable. The three sides of the triangle formed by the fixed link 11, the flip link 12, the first link 13 and the second link 14 are used together. Because the triangle has stability, the gravity self-locking flip mechanism 1 can be stable at this time.

[0056] In this embodiment, if Figure 1 As shown, the edge of the limiting slot 151 is provided with a rounded structure to facilitate the limiting column 141 to slide into the limiting slot 151, making it easier to limit the flip connecting rod 12.

[0057] In this embodiment, if Figure 1 As shown, one end of the locking link 15 is hinged to one end of the first link 13 .

[0058] In order to solve the above problems, Figures 1 to 5 As shown, the utility model also provides a gravity flip table, comprising:

[0059] The gravity self-locking flipping mechanism 1;

[0060] A supporting leg 3, one end of a fixed connecting rod 11 is fixed to the supporting leg 3;

[0061] The table top 2 is fixed to the flip link 12. When the flip link 12 is flipped to a horizontal position, the table top 2 is in an unfolded state; when the flip link 12 is flipped toward a vertical position, the table top 2 is switched to a stored state.

[0062] The gravity flip table of the utility model uses the gravity self-locking flip mechanism 1, so that the gravity flip table can be switched between the unfolded state and the stored state more conveniently and quickly.

[0063] As a more preferred embodiment, the gravity flip table includes two symmetrically arranged gravity self-locking flipping mechanisms 1. The two gravity self-locking flipping mechanisms 1 can better support the table top 2 and are less likely to deviate sideways.

[0064] In this embodiment, if Figure 1 As shown, the two flip connecting rods 12 are both fixed to the table top 2 and are symmetrical about the center of the table top 2, so that the center of gravity of the gravity flip table of the utility model can be ensured to be at the center position of the table top 2, thereby increasing stability.

[0065] In this embodiment, if Figure 1 As shown, the gravity flip table further includes a lifting handle 17 , and the lifting handle 17 is connected to the other ends of the two locking links 15 to facilitate lifting the locking links 15 .

[0066] In this embodiment, if Figure 1 As shown, the gravity flip table also includes a fixed plate 16, and the two fixed links 11 are respectively fixed to the two sides of the fixed plate 16, and the fixed plate 16 is fixed to the top of the supporting leg 3. The fixed plate 16 is used to fix the two fixed links 11 of the gravity self-locking flipping mechanism 1, so that the structure is more solid; further, in this embodiment, the fixed plate 16 and the fixed link 11 are integrally formed, which further ensures the strength of the structure.

[0067] In this embodiment, if Figure 1 As shown, the gravity flip table further includes a support 4, and the bottom of the support leg 3 is fixed to the support 4. The support 4 can increase the bottom area of ​​the gravity flip table and improve stability.

[0068] In summary, the gravity self-locking flipping mechanism and the gravity flip table of the present invention utilize the flipping mechanism that can be self-locked by gravity according to the flipping angle, achieving the technical effect of switching the flip table state without manual operation, and solving the problem that the flip table of the prior art limits the shape of the table top 2 by manually switching the locking structure, making the switching process of the flip table complicated. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A gravity self-locking turning mechanism (1), characterized in that: include: A fixed connecting rod (11), one end of which is fixed and the other end of which is inclined upward; A flip connecting rod (12), one end of which is hinged to the other end of the fixed connecting rod (11); A first connecting rod (13), one end of which is hinged to the other end of the flip connecting rod (12); a second connecting rod (14), one end of the second connecting rod (14) being hinged to the other end of the first connecting rod (13), and the other end of the second connecting rod (14) being hinged to one end of the fixed connecting rod (11), and a limiting column (141) being provided on the second connecting rod (14); A locking link (15), one end of which is hinged on the first link (13), the locking link (15) is provided with a limit slot (151) adapted to the limit column (141), the locking link (15) is overlapped on the limit column (141), and when the flip link (12) flips toward a horizontal position around a hinge point with the second link (14), the locking link (15) slides downward under the action of gravity When the flip link (12) is flipped to the horizontal position, the limiting column (141) slides into the limiting slot (151) to limit the flip link (12); when the flip link (12) is flipped toward the vertical position around the hinge point with the second link (14), the locking link (15) is pulled to make the limiting column (141) disengage from the limiting slot (151) and release the limit, thereby realizing the flipping of the flip link (12) toward the vertical position.

2. The gravity self-locking turning mechanism (1) according to claim 1, characterized in that: When the flip link (12) is in a vertical position, the length of the third side of the triangle formed by the fixed link (11) and the flip link (12) is equal to the sum of the lengths of the first link (13) and the second link (14); when the flip link (12) flips to a vertical position around the hinge point with the second link (14), the first link (13) and the second link (14) are pulled to be colinear and become the third side of the triangle formed by the fixed link (11) and the flip link (12); the flip link (12) cannot continue to flip, and the gravity self-locking flip mechanism (1) is stable.

3. The gravity self-locking turning mechanism (1) according to claim 1, characterized in that: The edge of the limiting slot (151) is provided with a rounded structure to facilitate the limiting column (141) to slide into the limiting slot (151), making it easier to limit the flip connecting rod (12).

4. The gravity self-locking turning mechanism (1) according to claim 1, characterized in that: One end of the locking link (15) is hinged to one end of the first link (13).

5. A gravity flip table, characterized in that: include: The gravity self-locking flipping mechanism (1) as described in any one of claims 1 to 4; A supporting leg (3), one end of a fixed connecting rod (11) being fixed to the supporting leg (3); A table top (2), wherein the table top (2) is fixed to the flip connecting rod (12); when the flip connecting rod (12) is flipped to a horizontal position, the table top (2) is in an unfolded state; when the flip connecting rod (12) is flipped toward a vertical position, the table top (2) switches to a stored state.

6. The gravity flip table according to claim 5, characterized in that: The gravity turning table comprises two gravity self-locking turning mechanisms (1).

7. The gravity flip table according to claim 6, characterized in that: The two flip connecting rods (12) are both fixed to the table top (2) and are symmetrical about the center of the table top (2).

8. The gravity flip table according to claim 7, characterized in that: The gravity flip table also includes a lifting handle (17), which is connected to the other ends of the two locking connecting rods (15) to facilitate lifting the locking connecting rods (15).

9. The gravity flip table according to claim 7, characterized in that: The gravity flip table also includes a fixed plate (16), the two fixed connecting rods (11) are respectively fixed to the two sides of the fixed plate (16), and the fixed plate (16) is fixed to the top of the supporting leg (3).

10. The gravity flip table according to claim 5, characterized in that: The gravity flip table also includes a support (4), and the bottom of the supporting leg (3) is fixed to the support (4).

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