Synchronous sliding mechanism and pull-out table

Abstract

The present invention provides a pull-out table and solves the problem in the prior art that it is inconvenient for a single user to operate a pull-out table due to a complex transformation structure thereof. The pull-out table comprises: a support frame, on which a sliding rail is provided, two sliding blocks being slidably arranged on the sliding rail; a transmission rope synchronous transmission structure, which comprises two guide members arranged at two ends of the sliding rail and a transmission rope sleeved on the two guide members and capable of rotating around the two guide members, the transmission rope comprising two sections respectively arranged on two sides of a guide member connection line, the two sliding blocks being respectively fixed to the two sections of the transmission rope, and the directions of movement of the two sections of the transmission rope being opposite to each other; and a table board assembly, which comprises two side table boards, the two table boards being mounted on the support frame and respectively connected to the two sliding blocks. When a side table board on a side is pulled outwards to drive the corresponding sliding block to slide on the sliding rail, the transmission rope rotates around the guide members, such that the two side table boards are synchronously opened. When a side table board on a side is pushed inwards, the two side table boards are synchronously closed.

Description

Synchronous sliding mechanism and pull-out table Technical Field

[0001] The present invention relates to the technical field of furniture, in particular to a synchronous sliding mechanism and a pull-out table. Background Art

[0002] In our rapidly changing and diverse modern society, people's demands for furniture continue to evolve. Tables, as an essential part of both home and work, are becoming increasingly diverse and specialized in variety and design. The market offers a wide variety of tables, meticulously categorized by usage scenarios to meet the needs of various occasions and activities. For example, we have desks designed for offices, dining tables for family gatherings, desks for schools, computer desks for personal computing, and desks that provide comfortable spaces for studying and reading.

[0003] Each table, with its unique design, provides optimal support and convenience for specific activities. Beyond functional segmentation, table structural design is also undergoing continuous innovation and optimization. The advent of height-adjustable tables allows users to easily adjust the height of the table to suit their height and work habits, achieving a healthier and more comfortable working posture. Folding tables, with their ease of storage and space-saving advantages, are ideal for small living spaces. Retractable tables, with their flexible expansion and storage capabilities, adapt to a variety of usage scenarios and are increasingly popular among home users.

[0004] Pull-out tables, with a simple pull-out action, can change the shape of the tabletop, providing users with more space and convenience. However, existing pull-out tables often require assistance from both sides to expand. To address these issues, there is an urgent need for a pull-out table that can achieve dual-sided expansion with just one person operating from one side. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a pull-out table to solve the problem of inconvenience in single-person operation caused by the complex deformation structure of the pull-out table in the prior art.

[0006] In order to solve the above problems, the present invention provides a synchronous sliding mechanism, comprising:

[0007] A guide rail and two sliding blocks slidably arranged on the guide rail;

[0008] A synchronous component, the synchronous component includes a synchronous transmission member and two guide structures respectively arranged at both ends of the guide rail, the synchronous member is sleeved on the two guide structures, the synchronous transmission member is limited to two sections with respect to the upper and lower sections about the connection line of the two guide structures, when the synchronous transmission member rotates around the two guide structures, the movement directions of the two sections of the synchronous transmission member are opposite, the two sliding blocks are respectively fixed to the two sections of the synchronous transmission member, when one of the sliding blocks is pushed to slide toward the other sliding block, the other sliding block slides in the opposite direction driven by the synchronous transmission member, and at this time the two sliding blocks slide toward each other synchronously; when one of the sliding blocks is pushed to slide in the direction away from the other sliding block, the other sliding block also slides in the opposite direction synchronously driven by the synchronous transmission member.

[0009] As a more preferred embodiment, the synchronous transmission member is a cable, and the ends of the cable are fixed on the same sliding block and are located on the same side of the connection line of the two guide structures.

[0010] As a more preferred embodiment, the synchronous transmission member is a synchronous belt, which includes two sections arranged on both sides of the guide member connection line, and the two sliding blocks are respectively fixed to the two sections of the synchronous belt.

[0011] As a more preferred embodiment, the two sliding blocks are provided with a plurality of fixing columns for fixing to the cables.

[0012] As a more preferred manner, the head and tail ends of the cable are fixed via fixing columns on the same sliding block.

[0013] As a more preferred embodiment, the two sliding blocks are symmetrical about the center of the guide rail.

[0014] As a more preferred method, the two sliding blocks are fixedly connected to a number of bearing pulleys above and below the line connecting the two guide structures, and the upper and lower bearing pulleys are engaged with the inner upper wall and inner lower wall of the guide rail to enable the two sliding blocks to slide on the guide rail.

[0015] As a more preferred embodiment, rope grooves are respectively provided at the ends of the two guide structures for accommodating the cables.

[0016] In order to solve the above problems, the present invention provides a pull-out table, comprising:

[0017] The above-mentioned synchronous sliding mechanism;

[0018] a supporting fence, the synchronous sliding mechanism being provided on the supporting fence;

[0019] A tabletop assembly, the tabletop assembly comprising a center table and side tables disposed on both sides of the center table, the side tables being slidably disposed on the top of the support fence and respectively connected to the sliding blocks;

[0020] Push one of the side tables to slide outward, and the side table on the other side will also slide synchronously in the opposite direction outward under the drive of the sliding block. When the sliding block runs to the end of the guide rail, the middle table is arranged and combined with the two side tables to form a complete desktop. At this time, the folding table is in the unfolded state; to fold the middle table, push one of the side tables to slide inward, and the side table on the other side will also slide synchronously until the two side tables are aligned. At this time, the folding table is in the folded state.

[0021] As a more preferred embodiment, a support frame is provided on the support fence, and when the folding table is in a folded state, the middle table is placed on the support frame.

[0022] As a more preferred embodiment, the middle table is hinged to the support frame, and the middle table can be folded to save space. When the folding table is switched to the folded state, the middle table board is rotated along the support frame to fold the middle table board and place it on the support frame.

[0023] As a more preferred embodiment, the folding table further comprises:

[0024] The folding table has four folding legs at the bottom, and the folding legs are rotatably arranged on the supporting fence;

[0025] When the folding table legs are rotated to a horizontal direction, they are stored inside the support fence, and at this time, the folding table legs are in a stored state. When the folding table legs are rotated to a vertical direction, they are in a supporting state.

[0026] In order to solve the above technical problems, the present invention provides a pull-out table, comprising:

[0027] A supporting frame, wherein the supporting frame is provided with a slide rail, and two sliders are slidably provided on the slide rail;

[0028] A synchronous transmission rope structure, comprising two guide members disposed at both ends of a slide rail and a transmission rope sleeved on the two guide members and capable of rotating around the two guide members. The transmission rope comprises two sections disposed on either side of a line connecting the guide members. The two sliders are respectively fixed to the two sections of the transmission rope. When the transmission rope rotates around the two guide members, the two sections of the transmission rope move in opposite directions.

[0029] The table panel assembly includes two side table panels, which are mounted on the supporting frame and are respectively connected to the two sliders; when one side table panel is pulled outward, the corresponding slider is driven to slide on the slide rail, and the transmission rope rotates around the guide member, thereby driving the other section of the transmission rope in the opposite direction to drive the other side table panel to move outward, and the two side table panels are opened synchronously; when one side table panel is pushed inward, the other side table panel is driven to move inward toward each other through the transmission rope, and the two side table panels are folded synchronously.

[0030] As a more preferred embodiment, the table top assembly further includes a center table top, and the two side table tops are opened synchronously to form a complete extended desktop together with the center table top.

[0031] As a more preferred embodiment, the pull-out table further includes a lifting bracket, which is arranged at the bottom of the center table panel and connected to the center table panel; when the two side table panels are opened synchronously, the lifting bracket drives the center table panel to lift up, and when the two side table panels are folded synchronously, the lifting bracket drives the center table panel to fall back and be stored under the side table panels; the lifting bracket cooperates with the opening and closing of the side table panels to realize the lifting and lowering of the center table panel, thereby improving the compactness and aesthetics of the structure.

[0032] When the two side table boards are opened synchronously, the corresponding slider moves on the slide rail and drives the sliding rod to move from the upper groove to the lower groove via the inclined groove, and the transmission rope of the lifting bracket drives the middle table board to be flush with the side table board; when the two side table boards are folded synchronously, the corresponding slider moves on the slide rail and drives the sliding rod to move from the lower groove to the upper groove via the inclined groove, and the transmission rope of the lifting bracket drives the middle table board to fall back and be stored under the side table board; the lifting bracket linked with the slider realizes the synchronous lifting of the middle table board and the side table board when opening and closing, further improving the operation convenience of the pull-out table of the present invention.

[0033] As a more preferred manner, the inclined groove is connected to the middle part of the lower groove. When the two side table panels are opened synchronously, the sliding rod moves along the inclined groove to the lower groove, and first moves outward in the lower groove to allow the side table panels to continue to move toward both sides, avoiding interference with the side table panels during the lifting process of the middle table panel. After the middle table panel is lifted, the side table panels are pushed in the opposite direction to make the sliding rod of the slider move inward in the lower groove, thereby allowing the side table panels to be spliced ​​with the middle table panel.

[0034] As a more preferred method, the center table panel is hinged on the supporting frame. When the two side table panels are folded synchronously, the center table panel is rotated so that it is stored at the bottom of the side table panels; when the two side table panels are opened synchronously, the center table panel is rotated so that it is flush with the side table panels; the center table panel is manually rotated to coordinate with the synchronous opening and folding of the side table panels, and the structure is simple and easy to maintain and install.

[0035] The guide member and the transmission rope adopt a synchronous wheel and a synchronous belt respectively. The synchronous wheel and the synchronous belt are respectively provided with a gear structure and a rack structure that can mesh with each other. The gear structure and the rack structure make the transmission rope smoother when rotating around the guide member, reduce friction, and make the deformation operation easier.

[0036] As a more preferred method, the guide member and the transmission rope adopt a guide wheel and a pull rope respectively, so that the structure is simpler and the cost is more saved.

[0037] As a more preferred method, two relatively parallel slide rails are provided on the supporting frame, and the two sides of the side table panel are respectively fixed to two sliders arranged opposite to each other on the two slide rails. The two slide rails make the force on both sides of the side table panel more uniform and the movement smoother when pushing and pulling the side table panel.

[0038] As a more preferred embodiment, the two sliders are symmetrical about the center of the slide rail, thereby ensuring that the side table panels can achieve symmetrical synchronous opening and synchronous closing movements about the center of the slide rail.

[0039] As a more preferred embodiment, the pull-out table further comprises a leg assembly arranged at the bottom of the support frame.

[0040] The pull-out table of the present invention has the following beneficial effects: when the pull-out table is used in scenarios where expansion is required, such as family gatherings, the side table panel on one side is pulled outward to drive the corresponding slider to slide on the slide rail, and the transmission rope rotates around the guide member, thereby driving the other section of the transmission rope to move in the opposite direction to move the other side table panel outward, and the two side table panels are opened synchronously, thereby obtaining a larger desktop and satisfying the use of more people at the same time; when the pull-out table of the present invention is used in storage scenarios such as daily single-person dining, the side table panel on one side is pushed inward, and the other side table panel is driven to move toward each other by the reverse rotation of the transmission rope, and the two side table panels are folded synchronously. At this time, the desktop is folded, and the space occupied is smaller while meeting its use function; when the pull-out table of the present invention uses the transmission rope to rotate around the guide member, the movement directions of the transmission ropes on both sides are opposite, and then the two side table panels fixed with the transmission rope realize reverse or opposite synchronous movement, thereby realizing synchronous opening and folding of the side table panels, thereby coping with scenarios where one person or multiple people are used;

[0041] The pull-out table of the present invention realizes the synchronous opening and folding of the side table panels through the guide parts and the transmission rope, which easily realizes the expansion and storage of the pull-out table, and solves the problem of the inconvenience of single-person operation caused by the complex deformation structure of the pull-out table in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is an exploded schematic diagram of a pull-out table according to the present invention;

[0043] FIG2 shows a partial enlarged view of area A in FIG1 ;

[0044] FIG3 shows a schematic structural diagram of a pull-out table according to the present invention;

[0045] FIG4 is a schematic diagram showing a synchronous transmission structure of a slider and a transmission rope of a pull-out table according to the present invention;

[0046] FIG5 is a schematic diagram showing the installation of the slider, the lifting bracket, and the synchronous transmission structure of the transmission rope of the pull-out table of the present invention;

[0047] FIG6 is a schematic structural diagram of the lifting bracket and lifting slot of the pull-out table of the present invention;

[0048] FIG7 is a schematic diagram showing the connection between the slide rail and the connecting rod of the pull-out table of the present invention;

[0049] FIG8 is a schematic diagram showing another storage and expansion structure of the middle table top of the pull-out table of the present invention.

[0050] FIG9 shows a structural diagram of a synchronous sliding mechanism and a folding table in an embodiment of the present application when the folding table is in a folded state.

[0051] FIG10 shows a structural schematic diagram of a synchronous sliding mechanism and a folding table in an embodiment of the present application when the folding table is in an unfolded state.

[0052] FIG11 shows a schematic structural diagram of a synchronous sliding mechanism and the back of a folding table in one embodiment of the present application.

[0053] FIG12 shows a structural schematic diagram of a longitudinal section of a folding table in an embodiment of a synchronous sliding mechanism and a folding table of the present application.

[0054] FIG13 shows a schematic structural diagram of a synchronous sliding mechanism and a fixed-end sliding block in an embodiment of a folding table of the present application.

[0055] FIG14 shows a schematic structural diagram of a synchronous sliding mechanism and a non-fixed end sliding block in an embodiment of a folding table of the present application.

[0056] FIG15 shows a structural diagram of a synchronous sliding mechanism and a folding table in another embodiment of the present application when the folding table is in an unfolded state.

[0057] FIG16 shows a structural diagram of another embodiment of a synchronous sliding mechanism and a folding table of the present application when the folding table is in an unfolded state from another angle.

[0058] FIG17 shows a structural schematic diagram of a synchronous sliding mechanism and an enlarged view of a folding table leg in an embodiment of the present application.

[0059] FIG18 shows a structural schematic diagram of a synchronous sliding mechanism and an enlarged view of the folding table legs from another perspective in one embodiment of the present application.

[0060] Component number description 1 Support frame 11 End rod 12 Side rod 2 Slide rail 21 Sliding groove 3 Sliding block 31 Connecting rod 32 Sliding rod 33 Adjusting groove 4 Transmission rope synchronous transmission structure 41 Guide member 411 Gear structure 42 Transmission rope 421 Rack structure 5 Table board assembly 51 Side table board 52 Middle table board 6 Lifting bracket 61 Lifting groove 611 Upper groove 612 Lower groove 613 Inclined groove 7 Support frame 71 Movable head 8 Fixing part 9 Adjusting nut 10 Support leg a1 Side table a11 Sliding block a12 Guide rail a21 Guide structure a22 Bearing pulley a 23 Fixed column a 25 Cable a 3 Middle table board a 4Support rail a 5 Folding table leg a 51 Fixing bolt a 52 Slide DETAILED DESCRIPTION

[0061] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0062] 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 for the implementation of the present invention. Therefore, they have no technical substantive significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is only limited 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., may 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.

[0063] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," "fixed," and "holding" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0064] Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. 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. Thus, "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 occur only when the combination of elements, functions, or operations is inherently mutually exclusive in some way.

[0065] Embodiment 1: As shown in Figures 1 to 8, the present invention provides a pull-out table, comprising:

[0066] A supporting frame 1 is provided with a slide rail 2, and two sliders 3 are slidably provided on the slide rail 2;

[0067] A synchronous transmission rope structure 4 includes two guide members 41 provided at both ends of the slide rail 2 and a transmission rope 42 sleeved on the two guide members 41 and rotatable around the two guide members 41. The transmission rope 42 includes two sections provided on both sides of the line connecting the guide members 41. The two sliders 3 are respectively fixed to the two sections of the transmission rope 42. When the transmission rope 42 rotates around the two guide members 41, the movement directions of the two sections of the transmission rope 42 are opposite.

[0068] The table panel assembly 5 includes two side table panels 51, and the two side table panels 51 are mounted on the supporting frame 1 and are respectively connected to the two sliders 3; when one side of the side table panel 51 is pulled outward, the corresponding slider 3 is driven to slide on the slide rail 2, and the transmission rope 42 rotates around the guide member 41, thereby driving the other section of the transmission rope 42 in the opposite direction to drive the other side table panel 51 to move outward, and the two side table panels 51 are opened synchronously; when one side of the side table panel 51 is pushed inward, the other side table panel 51 is driven to move inward toward each other through the transmission rope 42, and the two side table panels 51 are folded synchronously.

[0069] In order to better introduce the present invention, it is now explained in conjunction with the following specific applications: when the pull-out table of the present invention is used in scenarios that require expansion, such as family gatherings, the side table panel 51 on one side is pulled outward, and the corresponding slider 3 is driven to slide on the slide rail 2. At the same time, the transmission rope 42 rotates around the guide member 41, and then drives the other section of the transmission rope 42 in the opposite direction to drive the other side table panel 51 to move outward, and the two side table panels 51 are opened synchronously, so as to obtain a larger desktop and meet the needs of more people at the same time; when the pull-out table of the present invention is used in storage scenarios such as daily single-person dining, the side table panel 51 on one side is pushed inward, and the other side table panel 51 is driven to move toward each other by the reverse rotation of the transmission rope 42, and the two side tables are opened synchronously. The panels 51 are folded synchronously, and the desktop is folded at this time, which satisfies its functional requirements while taking up less space. When the pull-out table of the present invention rotates around the guide member 41 using the transmission rope 42, the transmission ropes 42 on both sides move in opposite directions, and then the two side table panels 51 fixed with the transmission rope 42 achieve reverse or opposite synchronous movement, thereby achieving synchronous opening and synchronous folding of the side table panels 51, and thus coping with single or multi-person usage scenarios. It can be seen that the pull-out table of the present invention achieves synchronous opening and synchronous folding of the side table panels 51 through the guide member 41 and the transmission rope 42, easily realizes the expansion and storage of the pull-out table, and solves the problem of inconvenience in single-person operation caused by the complex deformation structure of the pull-out table in the prior art.

[0070] In some possible embodiments of the present invention, as shown in FIG1 , the support frame 1 is a rectangular frame structure enclosed by two end rods 11 and two side rods 12 , wherein the slide rails 2 and the guide members 41 are disposed on the side rods 12 .

[0071] In some possible embodiments of the present invention, as shown in Figures 1, 2, and 7, a connecting rod 31 is provided on the slider 3, one end of the connecting rod 31 is fixed to the slider 3, and the other end is slidably provided in the slide rail 2; further, in this embodiment, a sliding groove 21 is provided on the slide rail 2, the edge of the sliding groove 21 is provided with a bevel, the other end of the connecting rod 31 is inserted into the sliding groove 21, and the other end of the connecting rod 31 is provided with a contact surface that cooperates with the bevel. In some possible embodiments of the present invention, as shown in Figure 1, the table panel assembly 5 also includes a middle table panel 52, and the two side table panels 51 are synchronously opened and assembled with the middle table panel 52 to form a complete extended desktop.

[0072] In some possible embodiments of the present invention, as shown in Figures 1 and 2, the pull-out table also includes a lifting bracket 6, which is arranged at the bottom of the middle table panel 52 and connected to the middle table panel 52; when the two side table panels 51 are opened synchronously, the lifting bracket 6 drives the middle table panel 52 to lift, and when the two side table panels 51 are folded synchronously, the lifting bracket 6 drives the middle table panel 52 to fall back and be stored on the lower side of the side table panel 51; by coordinating the opening and closing of the side table panels 51 with the lifting bracket 6, the lifting and lowering of the middle table panel 52 are realized, thereby improving the compactness and aesthetics of the structure.

[0073] In some possible embodiments of the present invention, as shown in FIG6 , both ends of the jacking bracket 6 are respectively provided with a lifting groove 61, and the lifting groove 61 includes an upper groove 611, a lower groove 612, and an inclined groove 613 connecting the upper groove 611 and the lower groove 612. A sliding rod 32 is fixed on the slider 3, one end of the sliding rod 32 is fixed to the slider 3, and the other end is slidably arranged in the lifting groove 61; when the two side table panels 51 are opened synchronously, the corresponding slider 3 moves on the slide rail 2, and at the same time drives the sliding rod 32 from the upper groove 611 through the inclined groove 613 When the two side tables 51 are folded together synchronously, the corresponding slider 3 moves on the slide rail 2, and at the same time drives the sliding rod 32 to move from the lower groove 612 to the upper groove 611 via the inclined groove 613, and the lifting bracket 6 drives the middle table board 52 to fall back and be stored on the lower side of the side table board 51; through the lifting bracket 6 linked with the slider 3, the middle table board 52 and the side table board 51 are opened and folded and lifted synchronously, which further improves the operation convenience of the pull-out table of the present invention.

[0074] In some possible embodiments of the present invention, as shown in Figure 6, the inclined groove 613 is connected to the middle part of the lower groove 612. When the two side table panels 51 are opened synchronously, the sliding rod 32 moves along the inclined groove 613 to the lower groove 612, and first moves outward in the lower groove 612 to allow the side table panels 51 to continue to move toward both sides, avoiding interference between the middle table panel 52 and the side table panel 51 during the lifting process. After the middle table panel 52 completes the lifting, the side table panel 51 is pushed in the reverse direction to allow the sliding rod 32 of the slider 3 to move inward in the lower groove 612, thereby allowing the side table panel 51 to be spliced ​​with the middle table panel 52.

[0075] In some possible embodiments of the present invention, as shown in FIG8 , the center table board 52 is hinged to the supporting frame 1. When the two side table boards 51 are synchronously folded, the center table board 52 is rotated to be stored at the bottom of the side table boards 51; when the two side table boards 51 are synchronously opened, the center table board 52 is rotated to be flush with the side table boards 51; the center table board 52 is manually rotated to cooperate with the synchronous opening and synchronous folding of the side table boards 51, and the structure is simple and easy to maintain and install; specifically, a support frame 7 is provided on the supporting frame 1, and the center table board 52 includes two parts hinged to each other, and movable The movable head 71, the two parts of the center table panel 52 that are hinged to each other are respectively hinged to the movable head 71 and can rotate around the movable head 71; after the two side table panels 51 are opened synchronously, the two parts of the center table panel 52 are rotated to open and piece together to form a complete center table panel 52, and at the same time, the movable head 71 is rotated upward and lifts the center table panel 52 to a position horizontal with the side table panels 51; when folding, the center table panel 52 is rotated in the opposite direction, and the two parts of the center table panel 52 are folded in half along the hinge, and at the same time, the movable head 71 is rotated downward and the center table panel 52 is folded downward, thereby meeting the space required for folding the side table panels 51.

[0076] In some possible embodiments of the present invention, as shown in Figure 4, the guide member 41 and the transmission rope 42 respectively adopt a synchronous wheel and a synchronous belt, and the synchronous wheel and the synchronous belt are respectively provided with a gear structure 411 and a rack structure 421 that can mesh with each other. The gear structure 411 and the rack structure 421 make the transmission rope 42 smoother when rotating around the guide member 41, reduce friction, and make the deformation operation easier.

[0077] In some possible embodiments of the present invention, the guide member and the transmission rope may also be respectively a guide wheel and a pull rope, so that the structure is simpler and the cost is more saved.

[0078] In some possible embodiments of the present invention, as shown in Figures 4 and 5, both ends of the transmission rope 42 are simultaneously fixed on one of the sliders 3. Two fixing members 8 are provided on this slider 3, respectively used to fix the two ends of the transmission rope 42. A movable tooth piece adapted to the rack structure 421 of the transmission rope 42 is provided in the fixing member 8. Moreover, an adjustment groove 33 is provided on this slider 3. The fixing member 8 can be movably set in the adjustment groove 33. An adjusting nut 9 is provided on the edge of the adjustment groove 33. By rotating the adjusting nut 9, the fixing member 8 is pushed to slide in the adjustment groove 33, thereby achieving the effect of tightening the transmission rope 42. After the transmission rope 42 is tightened, the fixing member 8 and the adjustment groove 33 are fixed by the locking mechanism on the fixing member 8.

[0079] In some possible embodiments of the present invention, as shown in Figure 1, two relatively parallel slide rails 2 are provided on the supporting frame 1, and the two sides of the side table panel 51 are respectively fixed to two sliders 3 relatively provided on the two slide rails 2. The two slide rails 2 make the force on both sides of the side table panel 51 more uniform and the movement smoother when pushing and pulling the side table panel 51.

[0080] In some possible embodiments of the present invention, as shown in FIG1 , the two sliders 3 are symmetrical about the center of the slide rail 2 , thereby ensuring that the side table panel 51 can achieve symmetrical synchronous opening and synchronous closing movements about the center of the slide rail 2 .

[0081] In some possible embodiments of the present invention, as shown in FIG1 , the pull-out table further includes a leg assembly disposed at the bottom of the support frame 1 . In this embodiment, the leg assembly includes four legs 10 disposed at the four corners of the support frame 1 .

[0082] As described above, the pull-out table of the present invention has the following beneficial effects:

[0083] 1. Synchronous movement:

[0084] Transmission rope synchronous transmission structure 4: The transmission rope synchronous transmission structure 4 is used to realize the synchronous opening and synchronous folding of the two side table panels 51. The operation is simple. Only one side table panel 51 needs to be pulled or pushed, and the other side table panel 51 can realize synchronous movement. No complicated operation is required, which improves the user experience.

[0085] 2. Space optimization:

[0086] Table panel assembly 5: The two side table panels 51 and the middle table panel 52 are assembled into a complete extended desktop when opened to meet the needs of multiple people; when folded, the side table panels 51 and the middle table panel 52 can be stored in a smaller space, saving floor space and being suitable for different usage scenarios.

[0087] 3.Stable structure:

[0088] Slide rail 2 and slider 3: Slide rail 2 is provided with slider 3, and slider 3 is connected to side table panel 51. When slider 3 slides on slide rail 2, it drives transmission rope 42 to rotate, thereby realizing synchronous movement of side table panel 51, and structure is stable and movement is smooth.

[0089] 4. Lifting bracket 6: The lifting bracket 6 is connected to the middle table board 52. Through the cooperation of the slider 3 and the lifting slot 61, the lifting and lowering of the middle table board 52 is realized, which improves the compactness and aesthetics of the structure.

[0090] 5. Easy to operate:

[0091] Single-person operation: The user only needs one person to complete the expansion and folding of the table without the assistance of others. It is easy to operate and suitable for various scenarios such as family gatherings and single dining.

[0092] Tool-free assembly: The entire unfolding and storage process does not require the use of tools, making it convenient for users to assemble and disassemble quickly and improving the user experience.

[0093] 6. Function expansion:

[0094] Design of the middle table panel 52: When the side table panels 51 are opened, the middle table panel 52 rises to be flush with the side table panels 51 to form a complete desktop; when the side table panels 51 are folded, the middle table panel 52 falls back and is stored under the side table panels 51, increasing the expansion function of the desktop.

[0095] 7. Improved aesthetics:

[0096] Hidden design: The center table panel 52 is hidden under the side table panels 51 when folded, and the overall appearance is simple, which improves the beauty of the product and is suitable for modern home decoration.

[0097] The pull-out table of this patent achieves multiple advantages of convenient operation, space optimization, structural stability and improved aesthetics through the innovative design of the transmission rope synchronous transmission structure 4 and the table panel assembly 5. Its core advantage is that the synchronous opening and folding of the two side table panels 51 are achieved through the transmission rope synchronous transmission structure 4. The user only needs one person to complete it, without the need for complex tools, and the operation is simple, saving time and energy. At the same time, the design of the table panel assembly 5 allows the desktop to provide a larger usable space when unfolded, meeting the needs of multiple people; when folded, it saves floor space and is suitable for use in different scenarios. In addition, the hidden design of the lifting bracket 6 and the middle table panel 52 further enhances the aesthetics and space utilization of the product. Overall, the pull-out table of this patent solves the problems of complex operation and low space utilization of pull-out tables in the prior art, and provides an efficient, convenient, beautiful and versatile solution.

[0098] Example 2:

[0099] Figure 1 shows a schematic diagram of the structure of a folding table in an embodiment of the present application in an unfolded state. Figure 9 shows a schematic diagram of the structure of a folding table in an embodiment of the present application in a folded state. Figure 10 shows a schematic diagram of the connection of a sliding block a11 connected to the back of the folding table.

[0100] As shown in Figures 11 to 18, the synchronous sliding mechanism in one embodiment of the present application includes: a guide rail a12 and two sliding blocks a11 slidingly arranged on the guide rail a12; a cable a25 assembly 2, the cable a25 assembly 2 including a cable a25 and two guide structures a21 respectively arranged at both ends of the guide rail a12, the cable a25 being connected end to end and sleeved on the two guide structures a21, the cable a25 being defined as two sections symmetrical about the line connecting the two guide structures a21, the cable a25 being fixed end to end on the same sliding block a11 and located between the two guide structures a2 1, when the cable a25 rotates around the two guide structures a21, the movement directions of the two sections of the cable a25 are opposite, and the two sliding blocks a11 are respectively fixed to the two sections of the cable a25. When one of the sliding blocks a11 is pushed to slide toward the other sliding block a11, the other sliding block a11 slides in the opposite direction driven by the cable a25. At this time, the two sliding blocks a11 slide toward each other synchronously; when one of the sliding blocks a11 is pushed to slide in a direction away from the other sliding block a11, the other sliding block a11 also slides in the opposite direction synchronously driven by the cable a25.

[0101] When the synchronous sliding mechanism of the present invention is in use, the cable a25 rotates around the two guide structures a21, and the movement directions of the two sections of the cable a25 are opposite. The two sliding blocks a11 are respectively fixed to the two sections of the cable a25. When one of the sliding blocks a11 is pushed toward the other sliding block a11, the other sliding block a11 slides in the opposite direction driven by the cable a25. At this time, the two sliding blocks a11 slide toward each other synchronously; when one of the sliding blocks a11 is pushed to slide in the direction away from the other sliding block a11, the other sliding block a11 also slides synchronously in the opposite direction in the diverging direction driven by the cable a25; the synchronous sliding mechanism of the present invention can easily realize the synchronous movement of the two sliding blocks a11 toward or in the opposite direction, and since the cable a25 is directly sleeved on the two guide structures a21, the cable a25 rotates directly around the guide structure a21 more smoothly and is not easy to get stuck. It is best to supplement how this scheme realizes smoother synchronous movement; at the same time, the simpler synchronous pulling structure also greatly reduces the production cost.

[0102] As shown in Figure 11, the sliding block a11 mounted on the guide rail a12 is L-shaped. One side of the sliding block a11 is connected to the back of the side table a1, and the other side is fixedly connected to a bearing pulley a22, which is embedded in the inner side of the guide rail a12. Driven by the sliding block a11, the side table a1 slides along the guide rail a12. The guide rail a12 can be made of materials including, but not limited to, aluminum.

[0103] Furthermore, the two sliding blocks a11 are fixedly connected to a plurality of bearing pulleys a22 above and below the line connecting the two guide structures a21. A cable a25 is provided in two layers, upper and lower. The upper and lower bearing pulleys a22 engage with the inner upper and lower walls of the guide rail a12, allowing the two sliding blocks a11 to slide on the guide rail a12. The bearing pulleys a22 are chamfered rollers that align with the shape of the rails to achieve rolling motion. Due to the good fit between the guide rail a12 and the rollers, the tabletop does not significantly shake during operation, ensuring the stability and smooth operation of the synchronous sliding mechanism.

[0104] In one embodiment of the present application, the two sliding blocks a11 are symmetrical about the center of the guide rail a12. Rope grooves are respectively provided at the ends of the two guide structures a21 for accommodating the cables a25. The symmetry about the center of the guide rail a12 allows the synchronous sliding mechanism to maintain balance and stability, thereby ensuring that the cables a25 are subjected to uniform force during movement. At the same time, the rope grooves can effectively fix and guide the cables a25, ensuring that they move along the correct path and avoiding unnecessary friction or resistance during movement. The provision of the rope grooves can also make the contact between the cables a25 and the guide structure a21 closer, thereby improving the transmission force and movement efficiency.

[0105] In one embodiment of the present application, the two sliding blocks a11 are provided with a plurality of fixing posts a23 for securing the cables a25. The ends of the cables a25 are secured by fixing posts a23 on the same sliding block a11. When the upper side table a1, secured by the sliding block a11, moves to the sides, the cables a25 rotate. Simultaneously, due to the length limitations of the cables a25, the center table a3, secured below, is exposed, and the folding tabletop is now in its unfolded state.

[0106] Figure 5 shows a schematic diagram of the structure of the sliding block a11 corresponding to the fixed side of the cable a25, wherein the sliding block is L-shaped. Two through holes are provided below the side of the sliding block a11 connected to the guide rail a12, which are respectively connected to the two bearing rollers provided on the inner side and lower side of the guide rail a12. Two long holes are provided above the sliding block a11 for fixing the two bearing rollers provided on the inner side and upper side of the guide rail a12. The long holes can also be used to adjust the height of the bearing rollers so that they fit tightly with the inner side of the guide rail a12. Two cable a25 fixing columns a23 are provided below the inner surface of the sliding block a11, wherein the outer surface of the end of the fixing column a23 is provided with a threaded structure. The end of the cable a25 is mounted on the fixing column a23 through a U-shaped buckle and is locked with the threaded structure through a nut to further fix the end of the cable a25 to prevent it from falling off.

[0107] Furthermore, FIG14 shows a schematic diagram of the structure of the sliding block a11 corresponding to the fixed side of the non-cable a25. Two long holes are provided above the side of the sliding block a11 connected to the guide rail a12, which are respectively connected to the two bearing rollers provided on the upper inner side of the guide rail a12. At the same time, the long holes can also be used to adjust the height of the bearing rollers so that they fit tightly with the inner side of the guide rail a12. Two long holes are provided below it for fixing the two bearing rollers provided on the lower inner side of the guide rail a12. Two cable a25 fixing columns a23 are provided above the inner surface of the sliding block a11. The top of the fixing column a23 has a threaded structure. The end of the cable a25 is mounted on the fixing column a23 through a U-shaped buckle, and then locked with a nut and the threaded structure to ensure that the end of the cable a25 is firmly fixed to prevent loosening.

[0108] In one embodiment of the present application, a folding table of the present invention includes: the synchronous sliding mechanism described in any one of the above items; a support fence a4, the synchronous sliding mechanism is arranged on the support fence a4; a table board assembly, the table board assembly includes a middle table a3 and side tables a1 arranged on both sides of the middle table a3, the side tables a1 are slidably arranged on the top of the support fence a4, and are respectively connected to the sliding blocks a11; pushing one of the side tables a1 to slide outward, the side table a1 on the other side also slides synchronously in the opposite direction toward the outside under the drive of the sliding block a11, when the sliding block a11 runs to the end of the guide rail a12, the middle table a3 is arranged and assembled with the two side tables a1 to form a complete table top, at which time the folding table is in the unfolded state; folding the middle table a3, pushing one of the side tables a1 to slide inward, the side table a1 on the other side also slides synchronously until the two side tables a1 are aligned, at which time the folding table is in the folded state.

[0109] The folding table of the present invention adopts the above-mentioned synchronous sliding mechanism. When in use, one of the side tables a1 is pushed to slide toward the outside, and the side table a1 on the other side also slides synchronously in the opposite direction toward the outside under the drive of the sliding block a11. When the sliding block a11 runs to the end of the guide rail a12, the middle table a3 is arranged and assembled with the two side tables a1 to form a complete desktop. At this time, the folding table is in the unfolded state; when the middle table a3 is folded, one of the side tables a1 is pushed to slide toward the inside, and the side table a1 on the other side also slides synchronously until the two side tables a1 are aligned, and the folding table is in the folded state. The folding table of the present invention can conveniently realize the synchronous movement of the two side tables a1 toward or in opposite directions through the above-mentioned synchronous sliding mechanism, thereby realizing the fast and convenient switching of the folding table between the folded state and the unfolded state. At the same time, since the rotation of the cable of the synchronous sliding mechanism is smoother, the switching of the folding table between the folded state and the unfolded state is also smoother. Moreover, due to the adoption of the above-mentioned synchronous sliding mechanism with a simpler structure, the cost is reduced.

[0110] Figures 15 and 16 illustrate a folding table according to an embodiment of the present invention. A support rail a4 is provided at the bottom of the folding table to provide support for the tabletop assembly. A support frame is provided on the support rail a4. When the folding table is folded, the center table a3 rests on the support rail a4.

[0111] In one embodiment of the present application, the middle table a3 is hinged to the support frame, and the middle table a3 can be folded to save space. When the folding table is switched to the folded state, the middle table board 3 is rotated along the support frame so that the middle table board is folded and placed on the support frame.

[0112] In one embodiment of the present application, the folding table further includes: four folding legs a5 at the bottom of the folding table, and the folding legs a5 are rotatably arranged on the support fence a4; when the folding legs a5 are rotated to a horizontal direction, they are stored inside the support fence a4, and at this time, the folding legs a5 are in a stored state; when the folding legs a5 are rotated to a vertical direction, the folding legs a5 are in a supporting state.

[0113] Figures 17 and 18 show enlarged views of the folding table leg a5. The folding table leg a5 is connected to the support rail a4 via a fixing bolt a51, and the folding table leg a5 is stored and supported by a sliding groove a52. The sliding groove a52 not only controls the range of motion of the folding table leg a5 but also limits its folding angle, ensuring the stability and safety of the folding table during use and storage.

[0114] In summary, the present invention relates to a synchronous sliding mechanism and folding table, which utilizes a cable that can directly rotate around a guide member and two sliding blocks connected to the cable to achieve smoother synchronous sliding while reducing costs. This solves the problems of existing folding tables that utilize a wire rope guide structure for synchronous extension and extension, resulting in an unstable tabletop, stagnant extension mechanisms, and high costs. This design not only increases the tabletop's load-bearing capacity but also significantly enhances the smoothness and comfort of its extension and retraction, allowing users to enjoy a smoother and more comfortable operating experience during use.

[0115] Therefore, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0116] 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 skilled in the art 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 one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A synchronous sliding mechanism, characterized in that: include: A guide rail (a12) and two sliding blocks (a11) slidably arranged on the guide rail (a12); A synchronous component, the synchronous component includes a synchronous transmission member and two guide structures (a21) respectively arranged at both ends of the guide rail (a12), the synchronous member is sleeved on the two guide structures (a21), the synchronous transmission member is limited to two upper and lower sections about the connection line of the two guide structures (a21), when the synchronous transmission member rotates around the two guide structures (a21), the movement directions of the two sections of the synchronous transmission member are opposite, the two sliding blocks (a11) are respectively fixed to the two sections of the synchronous transmission member, when one of the sliding blocks (a11) is pushed to slide toward the other sliding block (a11), the other sliding block (a11) slides in the opposite direction under the drive of the synchronous transmission member, and at this time the two sliding blocks (a11) slide toward each other synchronously; when one of the sliding blocks (a11) is pushed to slide in the direction away from the other sliding block (a11), the other sliding block (a11) also slides in the opposite direction synchronously under the drive of the synchronous transmission member.

2. The synchronous sliding mechanism according to claim 1, characterized in that: The synchronous transmission member is a cable (a25), and the cable (a25) is fixed at both ends on the same sliding block (a11) and is located on the same side of the line connecting the two guide structures (a21).

3. The synchronous sliding mechanism according to claim 1, characterized in that: The synchronous transmission member is a synchronous belt, and the synchronous belt (42) includes two sections arranged on both sides of the guide member connection line, and the two sliding blocks (3) are respectively fixed to the two sections of the synchronous belt (42).

4. The synchronous sliding mechanism according to claim 2, characterized in that: There are a number of fixing columns (a23) on the two sliding blocks (a11) for fixing with the cables (a25).

5. The synchronous sliding mechanism according to claim 4, characterized in that: The head and tail ends of the cable (a25) are fixed by fixing columns (a23) on the same sliding block (a11).

6. The synchronous sliding mechanism according to claim 1, characterized in that: The two sliding blocks (a11) are symmetrical about the center of the guide rail (a12).

7. The synchronous sliding mechanism according to claim 1, characterized in that: The two sliding blocks (a11) are fixedly connected to a plurality of bearing pulleys (a22) above and below the line connecting the two guide structures (a21), and the upper and lower bearing pulleys (a22) are engaged with the inner upper wall and the inner lower wall of the guide rail (a12) so that the two sliding blocks (a11) slide on the guide rail (a12).

8. The synchronous sliding mechanism according to claim 2, characterized in that: The ends of the two guide structures (a21) are respectively provided with rope grooves for accommodating the pull ropes (a25).

9. A pull-out table, characterized in that: include: The synchronous sliding mechanism according to any one of claims 1 to 8; A support fence (a4), wherein the synchronous sliding mechanism is provided on the support fence (a4); A tabletop assembly, comprising a center table (a3) ​​and side tables (a1) disposed on both sides of the center table (a3), wherein the side tables (a1) are slidably disposed on top of the support fence (a4) and are respectively connected to the sliding blocks (a11); Push one of the side tables (a1) to slide outward, and the side table (a1) on the other side also slides synchronously in the opposite direction toward the outside under the drive of the sliding block (a11). When the sliding block (a11) runs to the end of the guide rail (a12), the middle table (a3) ​​is arranged and combined with the two side tables (a1) to form a complete desktop. At this time, the folding table is in the unfolded state; fold the middle table (a3), push one of the side tables (a1) to slide inward, and the side table (a1) on the other side also slides synchronously until the two side tables (a1) are aligned. At this time, the folding table is in the folded state.

10. The pull-out table according to claim 9, characterized in that: A support frame is provided on the support fence (a4), and when the folding table is in a folded state, the middle table (a3) ​​is placed on the support frame.

11. The pull-out table according to claim 9, characterized in that: The middle table (a3) ​​is hinged on the support frame, and the middle table (a3) ​​can be folded to save space. When the folding table is switched to the folded state, the middle table board (3) is rotated along the support frame so that the middle table board is folded and placed on the support frame.

12. The pull-out table according to claim 9, characterized in that: The folding table also includes: The bottom of the folding table has four folding legs (a5), and the folding legs (a5) are rotatably arranged on the supporting fence (a4); When the folding table leg (a5) is rotated to a horizontal direction, it is stored inside the supporting fence (a4), and the folding table leg (a5) is in a stored state. When the folding table leg (a5) is rotated to a vertical direction, the folding table leg (a5) is in a supporting state.

13. A pull-out table, characterized in that: include: A supporting frame (1), wherein a slide rail (2) is provided on the supporting frame (1), and two sliders (3) are slidably provided on the slide rail (2); A transmission rope synchronous transmission structure (4), the transmission rope synchronous transmission structure (4) comprising two guide members (41) arranged at both ends of a slide rail (2) and a transmission rope (42) sleeved on the two guide members (41) and capable of rotating around the two guide members (41), the transmission rope (42) comprising two sections arranged on both sides of a line connecting the guide members (41), the two sliders (3) being fixed to the two sections of the transmission rope (42) respectively, and when the transmission rope (42) rotates around the two guide members (41), the movement directions of the two sections of the transmission rope (42) are opposite; A table panel assembly (5), wherein the table panel assembly (5) comprises two side table panels (51), the two side table panels (51) being mounted on the supporting frame (1) and respectively connected to the two sliders (3); when one side table panel (51) is pulled outward, the corresponding slider (3) is driven to slide on the slide rail (2), while the transmission rope (42) rotates around the guide member (41), thereby driving the other section of the transmission rope (42) in the opposite direction to drive the other side table panel (51) to move outward, and the two side table panels (51) are opened synchronously; when one side table panel (51) is pushed inward, the other side table panel (51) is driven to move inward toward each other through the transmission rope (42), and the two side table panels (51) are folded synchronously.

14. The pull-out table according to claim 13, characterized in that: The table top assembly (5) further comprises a middle table top (52), and the two side table tops (51) are synchronously opened to form a complete extended table top together with the middle table top (52).

15. The pull-out table according to claim 14, characterized in that: The pull-out table further comprises a lifting bracket (6), which is arranged at the bottom of the middle table board (52) and is connected to the middle table board (52); when the two side table boards (51) are opened synchronously, the lifting bracket (6) drives the middle table board (52) to be lifted up, and when the two side table boards (51) are folded synchronously, the lifting bracket (6) drives the middle table board (52) to fall back and be stored at the lower side of the side table board (51).

16. The pull-out table according to claim 15, characterized in that: Both ends of the lifting bracket (6) are provided with lifting grooves (61), and the lifting grooves (61) include an upper groove (611), a lower groove (612) and an inclined groove (613) connecting the upper groove (611) and the lower groove (612). A sliding rod (32) is fixed on the slider (3), one end of the sliding rod (32) is fixed to the slider (3), and the other end is slidably arranged in the lifting groove (61); when the two side table panels (51) are opened synchronously, the corresponding slider (3) moves on the slide rail (2), and at the same time drives the slider (3) to move. The movable rod (32) moves from the upper groove (611) to the lower groove (612) via the inclined groove (613), and the lifting bracket (6) drives the transmission rope to lift the middle table board (52) to be flush with the side table board (51); when the two side table boards (51) are synchronously folded, the corresponding slider (3) moves on the slide rail (2), and at the same time drives the sliding rod (32) to move from the lower groove (612) to the upper groove (611) via the inclined groove (613), and the lifting bracket (6) drives the transmission rope to move the middle table board (52) back and be stored on the lower side of the side table board (51).

17. The pull-out table according to claim 16, characterized in that: The inclined groove (613) is connected to the middle of the lower groove (612). When the two side table panels (51) are opened synchronously, the sliding rod (32) moves along the inclined groove (613) to the lower groove (612), and first moves toward the outside in the lower groove (612) to allow the side table panels (51) to continue to move toward both sides, thereby avoiding interference between the middle table panel (52) and the side table panel (51) during the lifting process. After the middle table panel (52) is lifted, the side table panel (51) is pushed in the reverse direction to allow the sliding rod (32) of the slider (3) to move toward the inside in the lower groove (612), thereby allowing the side table panel (51) to be spliced ​​with the middle table panel (52).

18. The pull-out table according to claim 14, characterized in that: The middle table panel (52) is hinged on the supporting frame (1). When the two side table panels (51) are folded synchronously, the middle table panel (52) is rotated to be stored at the bottom of the side table panels (51); when the two side table panels (51) are opened synchronously, the middle table panel (52) is rotated to be flush with the side table panels (51).

19. The pull-out table according to claim 13, characterized in that: The guide member (41) and the transmission rope (42) respectively adopt a synchronous wheel and a synchronous belt, and the synchronous wheel and the synchronous belt are respectively provided with a gear structure (411) and a rack structure (421) that can mesh with each other.

20. The pull-out table according to claim 13, characterized in that: The guide member (41) and the transmission rope (42) respectively adopt a guide wheel and a pull rope.

21. The pull-out table according to claim 13, characterized in that: Two relatively parallel slide rails (2) are provided on the supporting frame (1), and two sides of the side table board (51) are respectively fixed to two sliders (3) arranged opposite to each other on the two slide rails (2).

22. The pull-out table according to claim 13, characterized in that: The two sliding blocks (3) are symmetrical about the center of the slide rail (2).

23. The pull-out table according to claim 13, characterized in that: It also includes a leg assembly arranged at the bottom of the supporting frame (1).

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