Drawing type lifting folding table

Abstract

According to the drawing type lifting folding table, the sliding grooves in the supporting enclosure frame are matched with the sliding feet at the bottom of the movable table plate, and lifting and folding of the table plate are achieved. The sliding feet slide between the upper guide grooves and the lower guide grooves to drive the movable table board to be switched between the storage state and the unfolding state, the fixed table board is stored at the bottom of the movable table board during storage, and the sliding feet move to the lower guide grooves from the upper guide grooves through the communicating grooves during unfolding to drive the movable table board to descend and be aligned and spliced with the fixed table board. The limiting assembly is rotatably arranged to control passing and limiting of the sliding foot, the sliding foot is allowed to move from the upper guide groove to the lower guide groove at the horizontal position, and the sliding foot is limited to move from the lower guide groove to the upper guide groove at the inclined position. The convenience and stability of the folding table are remarkably improved, lifting and folding can be achieved by pushing the movable table plate, operation is simple and visual, stable operation in the switching process is guaranteed through the limiting assemblies, and blockage or separation from a rail is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a folding table, in particular to a pull-out type lifting folding table. BACKGROUND

[0002] The pull-out table is a kind of furniture that realizes the function of pulling out and drawing back table top by the structure of upper and lower two table tops and the slider with slope that cannot be moved.The core principle is that the vertical displacement is generated when the table top moves by the slope of slider, so as to realize the lifting of table top.This design is widely used in the scene that needs to flexibly adjust the height of table top, such as children's study table, dining table in family, adjustable height office table in office environment, multifunctional desk in classroom and pull-out type lifting folding table or temporary workbench in public place, etc.

[0003] However, the existing pull-out table structure has many problems.Firstly, its design is relatively traditional, and the components are complex, so the manufacturing process is complicated, which leads to high production cost.Secondly, since the slider cannot be moved and the slope is fixed, the pulling out and drawing back process of table top is not smooth enough, and the user experience is poor.In addition, this structure has obvious hand clamping hazards, especially when used by children and the elderly, there is a high safety risk.At the same time, the table top is easy to shake or jam during lifting, which affects the use effect and stability.Finally, the pull-out table usually adopts double-layer design, and the overall structure is thick, which occupies a large space, and is not conducive to space saving.These problems limit the popularization of pull-out table and the improvement of user experience. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned defects of the prior art pull-out table structure, such as poor use, hand clamping risk and poor stability, the technical problem to be solved by the utility model is to provide a pull-out type lifting folding table.

[0005] To achieve the above object, the utility model provides a kind of pull type lifting folding table, comprising: support frame, the support frame is equipped with sliding groove, the sliding groove includes upper guide groove, lower guide groove and the communicating groove that is connected with the upper guide groove and lower guide groove;Table board assembly, the table board assembly includes fixed table board and movable table board, the fixed table board is fixed on support frame, the bottom of movable table board is provided with slide foot, the slide foot is slidably arranged in the sliding groove, the movable table board is switched between storage state and unfolded state by slide foot sliding between upper guide groove and lower guide groove, wherein in storage state, the movable table board is arranged on the upper portion of fixed table board, in unfolded state, the slide foot moves from upper guide groove to lower guide groove via communicating groove, drives movable table board to descend and aligns with fixed table board and is spliced;Limiting component, the limiting component is rotatably arranged in the communicating groove, the slide foot drives the limiting component to switch between horizontal position and inclined position when switching in upper guide groove and lower guide groove, wherein horizontal position meets when storage state is towards unfolded state, the passage of slide foot from upper guide groove to lower guide groove is not interfered, inclined position meets when slide foot moves from lower guide groove to upper guide groove, push movable table board to drive slide foot to lift along limiting component.

[0006] More preferably, the limiting component includes wedge, shaft pin and pendulum, the shaft pin is fixed with the support frame, the wedge is rotatably connected with the shaft pin, the pendulum is slidably installed on the shaft pin, the pendulum is provided with sliding groove at one end and limiting boss at the other end, and the shaft pin is movably arranged in the sliding groove;In horizontal position, the limiting boss is clamped on the bottom of the wedge, the wedge is lifted up, and the upper part of the wedge is connected with the upper guide groove, and the lower part of the wedge forms a gap for the slide foot to enter the lower guide groove with the bottom of the communicating groove;After the slide foot enters the lower guide groove from the gap, the limiting boss is pushed to slide along the bottom of the wedge towards the rear part, and the sliding groove slides upwards along the shaft pin, so that the front part of the wedge abuts against the bottom of the communicating groove, and at this time, the upper part of the sliding groove protrudes from the wedge, and the wedge is switched to inclined position;When the slide foot moves from the lower guide groove to the upper guide groove, the movable table board is pushed to lift upwards along the wedge to the upper guide groove, and because the sliding groove protrudes from the wedge, the slide foot moves on the wedge while contacting the sliding groove and driving the pendulum to rotate along the shaft pin, when the slide foot enters the upper guide groove, the limiting boss is clamped into the bottom of the wedge again, and is switched to horizontal position.

[0007] More preferably, the wedge-shaped part comprises a wedge surface and a bottom surface; in the horizontal position, the limiting boss is in contact with the bottom surface of the wedge-shaped part, and the end of the wedge surface is in contact with the bottom of the upper guide groove; the slide foot enters the lower guide groove through the wedge surface and is in contact with the bottom of the communication groove; the limiting boss is pushed out from the bottom of the wedge-shaped part, and the slide groove is in contact to fix the limiting; when the slide foot moves from the lower guide groove to the upper guide groove, the slide foot enters the communication groove through the wedge surface and enters the upper guide groove through the wedge surface. The design of the wedge surface and the bottom surface of the wedge-shaped part ensures that the slide foot smoothly enters the lower guide groove and the upper guide groove, and the limiting of the slide foot is realized through the limiting boss.

[0008] More preferably, the bottom of the movable table plate is provided with two slide feet, and the two slide feet are slidingly arranged in the slide groove; a communication hole is formed in the slide groove to enable the other slide foot to switch between the upper guide groove and the lower guide groove. The bottom of the movable table plate is provided with two slide feet, and the slide groove is provided with a communication hole, which ensures that the two slide feet slide synchronously, improves stability and smoothness of operation.

[0009] More preferably, a support rod is arranged in the middle of the slide groove, the upper guide groove and the lower guide groove are arranged on the upper side and the lower side of the support rod respectively, and the communication groove is arranged at the end of the support rod; in the horizontal position, the end of the wedge-shaped part connected with the shaft pin is in contact with the end of the support rod, and the end of the wedge surface is flush with the groove bottom of the upper guide groove of the support rod. The support rod is arranged in the middle of the slide groove, the upper guide groove and the lower guide groove are arranged on the upper side and the lower side of the support rod respectively, and the communication groove is arranged at the end of the support rod, which optimizes the structure layout and enhances the stability.

[0010] More preferably, the wedge-shaped part and the bottom of the communication groove form a gap for the slide foot to enter the lower guide groove, the slide foot pushes the limiting boss out from the bottom of the wedge-shaped part, and the limiting boss is in contact with the support rod to limit the limiting boss and the slide foot.

[0011] More preferably, the support frame is a frame structure enclosed by two support plates and two connecting plates.

[0012] More preferably, the pull-out lifting folding table comprises two slide grooves, the two slide grooves are symmetrically arranged on the two support plates, and a limiting assembly is arranged in each of the two slide grooves; two slide feet are arranged on the two sides of the bottom of the movable table plate, and the two slide feet are arranged in the corresponding slide grooves respectively. The two slide grooves are symmetrically arranged on the support plates, and the two slide feet are slidingly arranged in the corresponding grooves respectively, which ensures the balance of the table plate lifting and the smoothness of operation.

[0013] More preferably, the pull-out lifting folding table comprises two movable table plates arranged on two sides of the support frame, and the two communication grooves are arranged at the ends of the support frame.

[0014] More preferably, the pull-out lifting folding table further comprises a plurality of support legs arranged at the bottom of the support frame. The plurality of support legs arranged at the bottom of the support frame enhances the overall stability and load-bearing capacity.

[0015] As described above, the pull-out lifting folding table has the following advantages: the stable lifting and folding functions of the table plate are realized through the design of the support frame and the upper and lower double-layer sliding grooves, which significantly improves the space utilization and operation convenience; the split design of the movable table plate and the fixed table plate in the table plate assembly enables the flexible expansion and storage of the table top, meeting various use requirements; the innovative design of the limiting assembly, especially the cooperation of the wedge, the shaft pin and the pendulum, ensures the accurate movement and automatic limiting of the sliding leg, simplifies the operation process and enhances the stability; the symmetrical layout of the double sliding legs and the double sliding grooves further improves the balance and smoothness of the table plate lifting; the structural optimization of the support frame and the support leg enhances the overall stability and load-bearing capacity, making the pull-out lifting folding table practical, durable and aesthetically pleasing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic diagram of the folding table in the storage state in an embodiment of the pull-out lifting folding table is shown.

[0017] Figure 2 A structure schematic diagram of the limiting assembly in the folding table in the storage state in an embodiment of the pull-out lifting folding table is shown.

[0018] Figure 3 A structure schematic diagram of the limiting assembly in the folding table in the unfolded state in an embodiment of the pull-out lifting folding table is shown.

[0019] Figure 4 A structure schematic diagram of the limiting assembly in the folding table in the unfolded state in an embodiment of the pull-out lifting folding table is shown.

[0020] Figure 5 A structure schematic diagram of the folding table in the storage state in another embodiment of the pull-out lifting folding table is shown.

[0021] Figure 6 A structure schematic diagram of the folding table in the unfolded state in an embodiment of the pull-out lifting folding table is shown.

[0022] ELEMENT NUMBER EXPLANATION

[0023] 1. Sliding groove

[0024] 11 Upper guide groove

[0025] 12 Lower guide groove

[0026] 13 Connecting slots

[0027] 14 Connecting holes

[0028] 15 Support rods

[0029] 2 Tabletop Assembly

[0030] 21 Fixed tabletop

[0031] 22. Movable table

[0032] 221 Slippery feet

[0033] 23 Supporting table legs

[0034] 3 Limiting components

[0035] 31 Wedge-shaped parts

[0036] 32 shaft pins

[0037] 33. Pendulum

[0038] 331 Limiting boss Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0040] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this 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 terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0041] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "connect", "fix", "hold" and so on should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integrally connect;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] Furthermore, as used in this document, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. It is further understood that the terms "comprising," "including," "containing," "characterized by," and / or "comprised of" shall be interpreted as including the possibility that there are one or more additional features, operations, elements, components, items, categories, and / or components in addition to those specifically recited. The terms "or" and "and / or" as used herein are to be interpreted as inclusive or meaning either 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." An exception to this definition will occur only when a combination of elements, functions, or operations are in some way inherently mutually exclusive.

[0043] Before further detailing the utility model, the terms and names involved in the utility model embodiment are explained, and the terms and names involved in the utility model embodiment are applicable to the following explanations:

[0044] <1>Support frame: refers to the frame structure for supporting and fixing the table board assembly, which is usually enclosed by support plates and connecting plates, and provides stable basic support for the entire folding table.

[0045] <2>Sliding groove: refers to the groove on the support frame, which is used for guiding the sliding of the slide foot, and usually includes an upper guide groove, a lower guide groove and a communication groove to realize the lifting and folding functions of the table board.

[0046] <3>Upper guide groove: a part of the sliding groove, located at the upper part of the sliding groove, used for guiding the sliding of the slide foot in the storage state.

[0047] <4>Lower guide groove: a part of the sliding groove, located at the lower part of the sliding groove, used for guiding the sliding of the slide foot in the unfolded state.

[0048] <5>Communication groove: a part of the sliding groove, connecting the upper guide groove and the lower guide groove, used for switching the slide foot between the upper guide groove and the lower guide groove.

[0049] <6>Table board assembly: refers to the tabletop part of the folding table, usually including fixed table board and movable table board, which realizes the lifting and folding of the table board through the sliding of the sliding legs in the sliding groove.

[0050] <7>Fixed table board: part of the table board assembly, fixed on the support frame, does not change with the movement of the movable table board.

[0051] <8>Movable table board: part of the table board assembly, which realizes lifting and folding through the sliding of the sliding legs in the sliding groove, and is aligned with the fixed table board to form a complete tabletop.

[0052] <9>Sliding leg: sliding component provided at the bottom of the movable table board, used for sliding in the sliding groove to switch the movable table board between the storage state and the unfolded state.

[0053] <10>Limiting assembly: rotating component provided in the communication groove, used to limit the sliding direction of the sliding leg, to ensure the smoothness and stability of the sliding leg when switching between the upper guide groove and the lower guide groove.

[0054] <11>Wedge: part of the limiting assembly, with a wedge surface, used to provide support and guidance when the sliding leg slides, to ensure accurate positioning of the sliding leg in different states.

[0055] <12>Shaft pin: part of the limiting assembly, used to fix the wedge and the pendulum, so that they can rotate within a certain range.

[0056] <13>Pendulum: part of the limiting assembly, with a sliding groove at one end and a limiting boss at the other end, used to provide limiting and guidance when the sliding leg slides.

[0057] <14>Limiting boss: part of the pendulum, used to cooperate with the wedge when the sliding leg slides to realize the limiting function.

[0058] <15>Supporting rod: supporting component provided in the middle of the sliding groove, used to separate the upper guide groove and the lower guide groove, and provide additional support and stability.

[0059] <16>Supporting table leg: multiple supporting components provided at the bottom of the supporting frame, used to provide additional stability and support force to ensure the stability of the folding table when in use.

[0060] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the embodiments of the present application is further described in detail through the following examples and in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the invention.

[0061] The utility model provides a kind of pull type lifting folding table, comprising: support frame, the support frame is equipped with sliding groove 1, the sliding groove 1 includes upper guide groove 11, lower guide groove 12 and the communicating groove 13 being communicated with the upper guide groove 11 and lower guide groove 12;Desk board assembly 2, the desk board assembly 2 includes fixed table board 21 and movable table board 22, the fixed table board 21 is fixed on support frame, the bottom of movable table board 22 is provided with slide foot 221, the slide foot 221 is slidably arranged in the sliding groove 1, the movable table board 22 is switched between storage state and unfolded state by slide foot 221 sliding between upper guide groove 11 and lower guide groove 12, wherein in storage state, the movable table board 22 is arranged on the upper portion of fixed table board 21, in unfolded state, the slide foot 221 moves from upper guide groove 11 to lower guide groove 12 via communicating groove 13, drives movable table board 22 to descend and aligns with fixed table board 21 and is spliced;Limiting component 3, the limiting component 3 is rotatably arranged in the communicating groove 13, the slide foot 221 drives the limiting component 3 to switch between horizontal position and inclined position when switching in upper guide groove 11 and lower guide groove 12, wherein horizontal position meets when storage state is towards unfolded state, the passage of slide foot 221 from upper guide groove 11 to lower guide groove 12 is not interfered, inclined position meets when slide foot 221 moves from lower guide groove 12 to upper guide groove 11, push movable table board 22 can drive slide foot 221 to lift along limiting component 3.

[0062] As shown in Figure 1 The pull type lifting folding table storage state, the slide foot 221 is located in the upper guide groove 11, the fixed table board 21 is stored in the bottom of movable seat board, the limiting component 3 is in horizontal position, pull the movable table board 22 drives the slide foot 221 from the upper guide groove 11 and slides into the lower guide groove 12, the movable table board 22 descends to the position with fixed table board 21 horizontally, reversely push the movable table board 22 and fixed table board 21 align and splice into complete table board, the pull type lifting pull type lifting folding table switches to unfolded state;Pull the movable table board 22 drives the slide foot 221 from the lower guide groove 12 and enters the communicating groove 13, at this time, the limiting component 3 switches to inclined position, reversely push the movable table board 22 drives slide foot 221 to move to upper slide groove along the limiting component 3, continue to push the movable table board 22 to make the fixed table board 21 be stored below the movable table board 22.

[0063] More preferably, the fixed table board 21 corresponds to the middle part of the entire table top after unfolding, and is located between the two movable table boards 22 in the unfolded state, and cooperates with the movable table boards 22 to form the overall table top. In the storage state, the lower parts of the fixed table board 21 and the movable table board 22 form a structure for accommodating mutual embedding, and the movable table board 22 is moved through the path of the sliding leg 221 to complete the unfolding and storage operation. The sliding leg 221 of the movable table board 22 is a bottom connecting piece, and the sliding path thereof is defined by the sliding groove 1, the sliding groove 1 forms an up-down guide partition design, realizes orderly switching of the sliding leg 221, and avoids path deviation.

[0064] As shown in Figures 2 to 4 , the limiting assembly 3 includes a wedge-shaped piece 31, a shaft pin 32, and a pendulum 33, the shaft pin 32 is fixed with the support frame, the wedge-shaped piece 31 is rotationally connected with the shaft pin 32, the pendulum 33 is slidably installed on the shaft pin 32, one end of the pendulum 33 is provided with a sliding groove, the other end is provided with a limiting boss 331, and the shaft pin 32 is movably arranged in the sliding groove; in the horizontal position, the limiting boss 331 is clamped at the bottom of the wedge-shaped piece 31, the wedge-shaped piece 31 is lifted up, the upper part of the wedge-shaped piece 31 is connected with the upper guide groove, and the lower part of the wedge-shaped piece 31 forms a gap for the sliding leg 221 to enter the lower guide groove 12; after the sliding leg 221 enters the lower guide groove 12, the limiting boss 331 is pushed to slide along the bottom of the wedge-shaped piece 31 towards the rear, the sliding groove slides upwards along the shaft pin 32, the front part of the wedge-shaped piece 31 abuts against the bottom of the communication groove 13, and at this time, the upper part of the sliding groove protrudes from the wedge-shaped piece 31, and the wedge-shaped piece 31 is switched to the inclined position; when the sliding leg 221 moves from the lower guide groove 12 to the upper guide groove 11, the movable table board 22 is pushed to lift upwards along the wedge-shaped piece 31 to the upper guide groove 11, and because the sliding groove protrudes from the wedge-shaped piece 31, the sliding leg 221 moves on the wedge-shaped piece 31 while contacting the sliding groove and driving the pendulum 33 to rotate along the shaft pin 32, when the sliding leg 221 enters the upper guide groove 11, the limiting boss 331 is clamped into the bottom of the wedge-shaped piece 31 again, and is switched to the horizontal position.

[0065] As shown in Figure 4 , when the sliding leg 221 moves from the lower guide groove 12 to the upper guide groove 11, the wedge-shaped piece 31 forms an inclined position due to gravity, and the surface thereof directly contacts the sliding leg 221 to provide a guide slope function. Once the sliding leg 221 returns to the position of the upper guide groove 11, the limiting assembly 3 will reset to the horizontal state, and the limiting boss 331 is clamped into the bottom of the corresponding wedge-shaped piece 31 again under the driving of the sliding leg 221, so as to ensure locking and stability in the folded state.

[0066] More preferably, the bottom of the slide foot 221 adopts a pulley design, which is in smooth contact with the inner surface of the sliding groove 1, further reducing the friction resistance when sliding, and improving the smoothness and comfort of movement. In addition, the support rod 15 is arranged in the middle of the sliding groove 1 to separate the upper guide groove 11 and the lower guide groove 12, which not only enhances the anti-deformation ability of the groove body, but also provides support for the installation and guidance of the limiting component 3.

[0067] In this embodiment, the slide foot 221 is controlled by the limiting structure in the communication groove 13 during the process of entering the lower guide groove 12 from the upper guide groove 11 and the communication groove 13. The limiting component 3 includes a wedge-shaped piece 31, a pendulum 33 and a shaft pin 32, wherein the wedge-shaped piece 31 and the pendulum 33 cooperate to complete the limiting and switching. When the slide foot 221 descends, the wedge-shaped piece 31 and the pendulum 33 form a self-adjusting mechanism through the pin shaft, and the guide slope designed on the front part of the wedge-shaped piece guides the slide foot 221 to smoothly enter the lower guide groove 12 and cooperate with the bottom of the lower guide groove 12 to fix the slide foot 221.

[0068] In an embodiment of the present application, when the pull-out lifting folding table is unfolded, after the slide foot 221 slides from the upper guide groove 11 to the lower guide groove 12, the slide foot 221 enters the communication groove 13 and pushes the limiting boss 331 at the end of the pendulum 33. The pendulum 33 is pressed by the slide foot 221 and rotates around the shaft pin 32, the slide groove guides the wedge-shaped piece 31 to switch to the horizontal position, and the limiting boss 331 is clamped into the support rod 15 to fix the slide foot 221. When the pull-out lifting folding table is stored, the slide foot 221 returns to the communication groove 13 from the lower guide groove 12, and after the wedge-shaped piece 31 loses the support of the slide foot 221 and the limiting boss 331 below, it tilts to a preset angle under the action of gravity, and is connected with the bottom of the communication groove 13. The slide foot 221 is lifted along the inclined surface of the wedge-shaped piece 31, and after touching the upper protruding part of the pendulum 33, the limiting boss 331 of the pendulum 33 is rotated with the slide groove to the bottom of the wedge-shaped piece 31 to reset the limiting boss 331.

[0069] In this embodiment, when the pull-out lifting folding table is unfolded, after the slide foot 221 slides from the upper guide groove 11 to the lower guide groove 12, the slide foot 221 enters the communication groove 13, the limiting boss 331 is located at the bottom of the wedge-shaped piece 31, and the gap between the front part of the wedge-shaped piece 31 and the bottom of the lower guide groove 12 is greater than the diameter of the slide foot 221, so that the slide foot 221 enters the lower guide groove 12. The upper part of the pendulum 33 is provided with a racetrack-shaped opening, and the pin shaft is located in the upper part of the pendulum 33 at this time.

[0070] In an embodiment of the present application, the folding table comprises: the wedge-shaped part 31 comprises a wedge-shaped surface and a bottom surface; when the wedge-shaped part 31 is in a horizontal position, the limiting boss 331 is in contact with the bottom surface of the wedge-shaped part 31, the end of the wedge-shaped surface is in contact with the bottom of the upper guide groove 11, the slide leg 221 enters the lower guide groove 12 through the wedge-shaped surface and is in contact with the bottom of the communication groove 13, the limiting boss 331 is pushed out from the bottom of the wedge-shaped part 31, and the slide groove 1 is abutted to fix the limiting; when the slide leg 221 moves from the lower guide groove 12 to the upper guide groove 11, the slide leg 221 enters the communication groove 13 through the wedge-shaped surface and enters the upper guide groove 11 through the wedge-shaped surface.

[0071] In an embodiment of the present application, when the tabletop is unfolded, the slide leg 221 enters the communication groove 13 from the upper guide groove 11 through the inclined surface of the wedge-shaped part 31, and the inclined angle of the inclined surface is designed to be 30° to 45° to ensure that the slide leg 221 can easily move downward. When the tabletop is stored, the slide leg 221 moves reversely, the wedge-shaped part 31 is inclined to form an inclined slope, and the slide leg 221 is lifted to the upper guide groove 11 under the action of external force to overcome the friction of the inclined surface.

[0072] In an embodiment of the present application, the slide leg 221 pushes the limiting boss 331 out from the bottom of the wedge-shaped part 31 and abuts to the slide groove 1 to fix the limiting, and preferably, the bottom of the slide groove 1 is provided with a limiting pin, and the mechanical locking of the slide leg 221 is realized after the limiting boss 331 abuts to the limiting pin. The limiting boss 331 includes but is not limited to a cylindrical boss or a polygonal boss.

[0073] In an embodiment of the present application, the bottom of the movable table plate 22 is provided with two slide legs 221, and the two slide legs 221 are slidingly arranged in the slide groove 1; the slide groove 1 is provided with a communication hole 14 for switching the other slide leg 221 between the upper guide groove 11 and the lower guide groove 12.

[0074] In an embodiment of the present application, the two slide legs 221 are symmetrically distributed on the two sides of the movable table plate 22, and the slide groove 1 is provided with the communication hole 14, so that the two slide legs 221 can be switched at the same time. In the unfolding process, the two slide legs 221 can be uniformly slid into the lower guide groove 12 through the communication hole 14, so as to effectively eliminate the risk of tilting of the tabletop, thereby keeping the force balance and avoiding the problem of single slide leg 221 jamming. At the same time, the design of the communication hole 14 ensures that the movement paths of the two slide legs 221 are consistent, which greatly improves the smoothness of operation.

[0075] In the embodiment, the movable table plate 22 is symmetrically arranged on the left and right sides, and the slide legs 221 on the left and right sides can independently move and the switching paths are completely mirror image designed. Through the symmetric arrangement of the communication hole 14 on the slide groove 1, the two slide legs 221 can be switched synchronously or moved independently, which avoids the problem of tilting of the tabletop in the unfolding process and realizes the uniform overall force.

[0076] In one embodiment of this application, a support rod 15 is provided in the middle of the sliding groove 1, the upper guide groove 11 and the lower guide groove 12 are respectively provided on the upper side and the lower side of the support rod 15, and the connecting groove 13 is provided at the end of the support rod 15; in the horizontal position, the end of the wedge 31 connected to the shaft pin 32 is connected to the end of the support rod 15, and the end of the wedge surface is flush with the bottom of the upper guide groove 11 of the support rod 15.

[0077] In this embodiment, the support rod 15 is located in the middle of the sliding groove 1, separating the upper guide groove 11 and the lower guide groove 12 to enhance the deformation resistance of the sliding groove 1. In the retracted state, the end of the wedge-shaped member 31 abuts against the support rod 15, and the end of the wedge-shaped surface is flush with the bottom of the upper guide groove 11 of the support rod 15. The support rod 15 is used to divide the sliding groove 1 into sections and guide the sliding foot 221 to accurately enter the target groove position. At the same time, the support rod 15 and the wedge-shaped member 31 cooperate to prevent the sliding foot 221 from leaving the path.

[0078] like Figure 5 As shown, the wedge-shaped member 31 and the bottom of the communicating groove 13 form a gap for the sliding foot 221 to enter the lower guide groove 12. The sliding foot 221 enters the lower guide groove 12 and pushes the limiting boss 331 out from the bottom of the wedge-shaped member 31. The limiting boss 331 abuts against the support rod 15 to limit the limiting boss 331 and the sliding foot 221.

[0079] In this embodiment, the movement of the sliding foot 221 triggers the switching of the release / locking state of the limiting boss 331. Specifically, after the limiting boss 331 enters the lower guide groove 12, its end abuts against the lower guide groove 12 of the support rod 15 to form a mechanical lock; when it is necessary to switch from the unfolded state to the folding turntable type, the limiting boss 331 is disengaged from the support rod 15 under the force of the sliding foot 221 located in the upper guide groove 11, and moves back to the bottom of the wedge 31.

[0080] In one embodiment of this application, the supporting frame is a frame structure formed by two supporting plates and two connecting plates.

[0081] In this embodiment, the supporting frame is a rectangular frame consisting of two transverse support plates and a longitudinal connecting plate, which serves to distribute the load on the desktop. The support plate embedded inside the sliding groove 1 is used to reduce the impact of external impacts on the slide rail. This rigid frame structure reduces the risk of deformation of the sliding groove 1, and the modular design makes the product installation process simpler.

[0082] In an embodiment of the present application, the pull-out lifting folding table comprises two sliding grooves 1, which are symmetrically arranged on the two support plates, and a limiting assembly 3 is arranged in each of the two sliding grooves 1. The two sides of the bottom of the movable table plate 22 are respectively provided with sliding legs 221, and the two sliding legs 221 are arranged in the corresponding sliding grooves 1.

[0083] In this embodiment, the two sliding grooves 1 are parallelly distributed on the two support plates, which ensures that the movement paths of the two sliding legs 221 are completely mirrored. When unfolded, the two limiting assemblies 3 will act synchronously, ensuring that the movable table plate 22 is evenly stressed on both sides, thereby avoiding tilting. Such symmetrical layout not only effectively avoids the problems of jamming or tilting caused by uneven load, but also ensures that the two limiting assemblies 3 can cooperatively control the movement rhythm of the sliding legs 221.

[0084] As shown in the drawings, Figures 5 to 6 In an embodiment of the present application, the folding table plate comprises: the pull-out lifting folding table comprises two movable table plates 22, which are arranged on the two sides of the support frame, and the communication groove 13 comprises two, which are arranged at the ends of the support frame. The support legs 23 of the two movable table plates 22 are switched between the upper guide groove 11 and the lower guide groove 12 through the corresponding communication groove.

[0085] In this embodiment, the design of the movable table plate 22 and the communication groove 13 allows the two movable table plates 22 to be independently operated and expanded or stored in time through their respective communication grooves 13, thereby increasing the flexibility of the table top expansion and storage. The limiting assembly 3 can independently control each side of the sliding leg 221, thereby allowing unilateral expansion or bilateral simultaneous expansion. This design allows the distribution type sliding groove 1 to adapt to the needs of different scenes, such as being used as a half table when expanded on one side, and forming a complete table top when expanded on both sides. The independent design of the communication groove 13 avoids interference between the two sides.

[0086] In an embodiment of the present application, the pull-out lifting folding table further comprises a plurality of support legs 23 arranged at the bottom of the support frame.

[0087] In this embodiment, four support legs are used, which are arranged in a trapezoidal layout. The front two legs are close to the sliding groove 1 area, and the rear two legs support the fixed table plate 21, thereby lowering the center of gravity, improving the anti-toppling ability, and balancing the lever between the front leg and the support point of the sliding groove 1, further reducing the front tilting moment in the unfolded state.

[0088] In conclusion, the utility model provides a kind of pull type lifting folding table, and the lifting and folding of table board are realized by the cooperation of sliding groove 1 on supporting enclosure frame and sliding leg 221 at the bottom of movable table board 22.Sliding leg 221 slides between upper guide groove 11 and lower guide groove 12, and drives movable table board 22 to switch between storage and expansion state: when storing, fixed table board 21 is stored at the bottom of movable table board 22, and when expanding, sliding leg 221 moves from upper guide groove 11 to lower guide groove 12 through communication groove 13, drives movable table board 22 to descend and aligns with fixed table board 21 to splice.Limiting component 3 is rotationally arranged to control the passing and limiting of sliding leg 221, and the horizontal position allows sliding leg 221 to move from upper guide groove 11 to lower guide groove 12, and the inclined position limits sliding leg 221 to move from lower guide groove 12 to upper guide groove 11.The convenience and stability of folding table are significantly improved, and lifting and folding can be realized by pushing movable table board 22, which is simple and intuitive, and limiting component 3 ensures smooth operation during switching process, avoiding jamming or disengaging from track.

[0089] After the application of the utility model, its significant advantages are reflected in greatly improving space utilization, simplifying operation process, enhancing structural stability and use convenience.The utility model not only overcomes many defects of prior art, but also has high industrial utilization value, and provides a feasible solution for folding table field.

[0090] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model.Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model.Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A pull-out lift and fold table characterized by, The utility model relates to a kind of pull-out type folding table, including: Support frame, sliding groove (1) is opened on the support frame, the sliding groove (1) includes upper guide groove (11), lower guide groove (12) and the communicating groove (13) that communicates upper guide groove (11) and lower guide groove (12); Desk plate assembly (2), the fixed desk plate (21) of the desk plate assembly (2) is fixed on support frame, the bottom of the movable desk plate (22) is provided with slide foot (221), the slide foot (221) is slidably arranged in the sliding groove (1), the movable desk plate (22) is switched between storage state and unfolded state by slide foot (221) sliding between upper guide groove (11) and lower guide groove (12), wherein in storage state, the movable desk plate (22) is arranged on the upper portion of fixed desk plate (21), in unfolded state, the slide foot (221) moves from upper guide groove (11) to lower guide groove (12) via communicating groove (13), drives movable desk plate (22) to descend and aligns with fixed desk plate (21) and is spliced together; Limiting assembly (3), the limiting assembly (3) is rotatably arranged in the communicating groove (13), the slide foot (221) drives the limiting assembly (3) to switch between horizontal position and inclined position when switching in upper guide groove (11) and lower guide groove (12), wherein horizontal position meets when storage state is towards unfolded state, the passage of slide foot (221) from upper guide groove (11) to lower guide groove (12) is not interfered, inclined position meets when slide foot (221) moves from lower guide groove (12) to upper guide groove (11), push movable desk plate (22) to drive slide foot (221) to lift along limiting assembly (3).

2. The pull-out type folding table according to claim 1, wherein: The limiting assembly (3) includes wedge (31), shaft pin (32) and pendulum (33), the shaft pin (32) is fixed with the support frame, the wedge (31) is rotatably connected with the shaft pin (32), the pendulum (33) is slidably installed on the shaft pin (32), the pendulum (33) is provided with sliding groove at one end, and is provided with limiting boss (331) at the other end, the shaft pin (32) is movably arranged in the sliding groove; In horizontal position, the limiting boss (331) is clamped on the bottom of the wedge (31), the wedge (31) is lifted up, and the upper portion of the wedge (31) is connected with the upper guide groove, and the lower portion of the wedge (31) forms a gap for the slide foot (221) to enter the lower guide groove (12) with the bottom of the communicating groove (13). The sliding leg (221) pushes the limiting boss (331) to slide along the bottom of the wedge (31) towards the rear after entering the gap into the lower guide groove (12), the sliding groove slides upwards along the shaft pin (32), the front of the wedge (31) abuts the bottom of the communication groove (13), and at this time the upper part of the sliding groove protrudes from the wedge (31), the wedge (31) switches to the inclined position; when the sliding leg (221) moves from the lower guide groove (12) to the upper guide groove (11), it pushes the movable table board (22) to lift upwards along the wedge (31) to the upper guide groove (11), and because the sliding groove protrudes from the wedge (31), the sliding leg (221) moves on the wedge (31) while contacting the sliding groove and driving the pendulum (33) to rotate along the shaft pin (32), when the sliding leg (221) enters the upper guide groove (11), the limiting boss (331) re-enters the bottom of the wedge (31) to switch to the horizontal position.

3. The extension lift-fold table of claim 1 wherein, Comprise: The wedge (31) comprises a wedge surface and a bottom surface; In the horizontal position of the wedge (31), the limiting boss (331) is in contact with the bottom surface of the wedge (31), the end of the wedge surface is in contact with the bottom of the upper guide groove (11), the sliding leg (221) enters the lower guide groove (12) through the wedge surface and is in contact with the bottom of the communication groove (13), pushes the limiting boss (331) out of the bottom of the wedge (31), and abuts the sliding groove (1) to fix the limiting position; When the sliding leg (221) moves from the lower guide groove (12) to the upper guide groove (11), the sliding leg (221) enters the communication groove (13) through the wedge surface and enters the upper guide groove (11) through the wedge surface.

4. The extension lift-fold table of claim 2 wherein, The bottom of the movable table board (22) is provided with two sliding legs (221), and the two sliding legs (221) are slidingly arranged in the sliding groove (1); the sliding groove (1) is provided with a communication hole (14) for switching the other sliding leg (221) between the upper guide groove (11) and the lower guide groove (12).

5. The extension lift-fold table of claim 2 wherein, The middle of the sliding groove (1) is provided with a support rod (15), the upper guide groove (11) and the lower guide groove (12) are separately arranged on the upper side and the lower side of the support rod (15), and the communication groove (13) is arranged at the end of the support rod (15); in the horizontal position, the end of the wedge (31) connected with the shaft pin (32) is in contact with the end of the support rod (15), and the end of the wedge surface is flush with the groove bottom of the upper guide groove (11) of the support rod (15).

6. The extension lift-fold table of claim 5 wherein: The wedge (31) and the bottom of the communication groove (13) form a gap for the sliding leg (221) to enter the lower guide groove (12), the sliding leg (221) pushes the limiting boss (331) out of the bottom of the wedge (31) when entering the lower guide groove (12), and the limiting boss (331) abuts the support rod (15) to limit the limiting boss (331) and the sliding leg (221).

7. The extension lift-fold table of claim 1 wherein, The support frame is a frame structure enclosed by two support plates and two connecting plates.

8. The extension lift-fold table of claim 7 wherein, The pull type lifting folding table comprises two sliding grooves (1), which are symmetrically arranged on two support plates, and a limiting assembly (3) is arranged in each of the two sliding grooves (1); two slide feet (221) are arranged on the two sides of the bottom of the movable table plate (22), and the two slide feet (221) are arranged in the corresponding sliding grooves (1) respectively.

9. The extension lift-fold table of claim 1 wherein, Comprise: The pull type lifting folding table comprises two movable table plates (22), which are arranged on the two sides of the support frame; the communication groove (13) comprises two, which are arranged at the ends of the support frame; and the slide feet (221) of the two movable table plates (22) are switched between the upper guide groove (11) and the lower guide groove (12) through the corresponding communication groove (13).

10. The extension lift-fold table of claim 1 wherein, The pull type lifting folding table further comprises a plurality of support table feet (23) arranged at the bottom of the support frame.

Images