Lifting and sliding table
The lift-and-slide table design with slide rail and guide groove mechanisms addresses the limitations of fixed frame size by enabling flexible expansion and contraction of the tabletop, ensuring stability and adaptability to various spaces and user needs.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- ZHEJIANG YOTRIO GRP CO LTD
- Filing Date
- 2026-02-20
- Publication Date
- 2026-06-11
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical field
[0001] The utility model relates to the technical field of furniture, in particular a lifting and sliding table. background
[0002] In everyday life, traditional tables with fixed tabletops are widely used due to their stability and simplicity. However, with the diversification of living spaces and changing usage needs, the limitations of fixed tabletops are becoming increasingly apparent. In particular, when the table's location or purpose changes, such as moving from a large room to a small one or increasing the number of diners, fixed tabletops often cannot be flexibly adjusted, causing significant inconvenience for users.
[0003] To overcome this limitation, the furniture industry has begun researching and producing several new types of furniture, with the lift-and-slide table being a prime example. Compared to conventional tables with a fixed top, the lift-and-slide table's design allows for flexible adjustment of the tabletop size, thus making more efficient use of space. Such tables are typically equipped with precise mechanical structures, such as ball-bearing rails, which move the side tabletops synchronously along the tracks to achieve the lifting and extending function. However, despite significant advancements in design and functionality, lift-and-slide tables still exhibit some pressing problems in existing designs.In particular, the use of ball bearing rails, which improves the smoothness of operation and stability of the table to a certain extent, also brings with it some limitations.
[0004] Firstly, the ball bearing rails are installed in the table frame, and their extension path is directly limited by the size of the table frame. This means that the extension area of the tabletop is strictly limited by the physical space and cannot be extended indefinitely as needed. This limitation becomes particularly apparent when users have to place the table in a smaller room or require a larger tabletop area to accommodate more people or objects. Secondly, due to the travel limitations of the rails, the size of the central tabletop is often smaller than that of the side tabletops. This design ensures the structural stability and ease of operation of the table to a certain extent. It also limits the overall extension ratio after the tabletop is fully extended. In practical use, users may find that even with the tabletop fully extended, the generous surface area required for certain tasks or activities cannot be achieved, which negatively impacts the table's practicality and user experience. Summary
[0005] In view of the disadvantages of the prior art described above, the technical problem to be solved by the utility model is to provide a lifting and sliding table to address prior art technical problems such as the limitation of the tabletop extension by the table frame size and the restricted extension ratio. To achieve the above objective, the utility model provides a lifting and sliding table comprising: a tabletop structure, wherein the tabletop structure comprises a central tabletop and two side tabletops arranged on either side of the central tabletop; Two sets of pull-out lifting structures, each pull-out lifting structure comprising a main slide rail, a secondary slide rail arranged parallel to the main slide rail, and two slide rail angle surfaces slidably between the main slide rail and the secondary slide rail; the secondary slide rail has an upper guide groove on its side facing the main slide rail, flanked by two lower guide grooves. The middle sections of the upper guide groove and each lower guide groove are connected to each other via inclined guide grooves; the two side tabletops are each mounted on corresponding slide rail corner surfaces, and the middle tabletop is mounted on the secondary slide rail; the two slide rail corner surfaces slide along the main slide rail and alternate between the upper guide groove and the lower guide grooves via the inclined guide grooves; When the two side tabletops are pulled to either side of the center tabletop, the two corner surfaces of the sliding rails glide along the main sliding rail to either side of the center tabletop. As they pass through the inclined guide groove from the upper guide groove to the lower guide groove, the center tabletop rises on the secondary sliding rail relative to the side tabletops; the two corner surfaces then slide within their respective lower guide grooves, moving the two side tabletops into a horizontal alignment with the center tabletop, thus extending the lift-and-slide table into the unfolded position. Pulling the two side tabletops in the opposite direction causes the two corner surfaces of the sliding rails to glide along the main sliding rail toward the center tabletop.As they slide from the lower guide groove to the upper guide groove along the inclined guide groove, the middle tabletop lowers on the secondary guide rail relative to the side tabletops. Subsequently, the two corner surfaces of the guide rails slide within the upper guide groove and pull the two side tabletops over the middle tabletop, thus moving the lifting and sliding table into the folded position.
[0006] In a preferred embodiment, each of the two slide rail corner surfaces is provided with a sliding positioning pin, wherein the slide rail corner surfaces slide along the main slide rail and the sliding positioning pins move to switch between the upper guide groove and the lower guide groove via the inclined guide groove.
[0007] In a preferred embodiment, it further comprises a support frame structure, wherein the sliding rail corner surfaces extend to the outside of the support frame structure.
[0008] In a preferred embodiment, the support frame structure has a rectangular shape, comprising two side table frames and two connecting beams positioned between the two side table frames and forming an enclosure with the two side table frames and the two connecting beams, wherein two sets of pull-out lifting structures are arranged on the inside surfaces of each of the two side table frames.
[0009] In a preferred embodiment, it further comprises two sets of leg structures, each set of leg structures being arranged on both sides of the support frame structure.
[0010] In a preferred embodiment, the connecting beams are provided with first rollers, the underside of the side table top is provided with a first sliding groove in which the first roller can slide; when the sliding rail angle surface drives the side table top to slide, the first roller slides within the first sliding groove.
[0011] In a preferred embodiment, the connecting beam is provided with a fixed support, and the first roller is mounted on the connecting beam via the fixed support.
[0012] In a preferred embodiment, the main slide rail is provided with a second roller and a steel cable connected to the second roller, the steel cable being used to connect the two lateral tabletops which are mounted on the two corner surfaces of the slide rail.
[0013] In a preferred embodiment, the underside of the side tabletop is provided with a scratch-resistant wheel.
[0014] In a preferred embodiment, the leg structure has a square leg tube structure. As described above, the lifting and sliding table described in the utility model has the following advantageous effects: When using the lifting and sliding table of the utility model, pulling the two side tabletops to either side of the central tabletop when a larger table surface is required causes the two side tabletops to slide over the corresponding corner surfaces of the sliding rails to either side of the central tabletop. As the corner surfaces of the sliding rails pass through the inclined guide groove from the upper guide groove to the lower guide groove, the central tabletop rises on the secondary guide rail relative to the side tabletops; subsequently, the two corner surfaces of the sliding rails slide within the corresponding lower guide grooves and move the two side tabletops into a horizontal alignment with the central tabletop, thus extending the lifting and sliding table into its unfolded position. This expands the table surface and meets the needs of several people using it simultaneously.
[0015] If a large tabletop is not required, pulling the two side tabletops in the opposite direction causes the two corner surfaces of the sliding rails to move from the lower guide groove, across the inclined guide groove, to the upper guide groove. The middle tabletop then lowers on the secondary guide rail relative to the side tabletops. Subsequently, the two corner surfaces of the sliding rails slide within the upper guide groove and pull the two side tabletops over the middle tabletop, thus folding the lift-and-slide table into its folded position. This reduces the required floor space and also meets the needs of a smaller number of simultaneous users.
[0016] Furthermore, the lifting and sliding table of the utility model increases the extension range of the side tabletops on the main slide rail by arranging two corner surfaces of the slide rails between the main and secondary slide rails. The side tabletops can slide over a larger area, allowing them to achieve a greater extension ratio with the central tabletop when extended, thus creating a large central tabletop. This enables the lifting and sliding table to cover a wider area when extended, making it more adaptable to various spaces and scenarios. Brief description of the drawings Fig. Figure 1 shows an exploded view of the lifting and sliding table of the utility model. Fig. Figure 2 shows a structural schematic diagram of the lifting and sliding table of the utility model. Fig. Figure 3 shows a schematic diagram of the lifting and sliding table of the utility model in the unfolded state. Fig. Figure 4 shows a partial structure diagram of the lifting and sliding table of the utility model in the unfolded state. Fig. Figure 5 shows a partial structure diagram of the lifting and sliding table of the utility model in the folded state. Fig. Figure 6 shows a schematic diagram of the secondary guide rail of the lifting and sliding table of the utility model. Fig. Figure 7 shows a schematic diagram of the side tabletop of the lifting and sliding table of the utility model. Description of reference symbols 1 Tabletop structure 11 Medium tabletop 12 Side tabletop 121 First sliding groove 122 Scratch protection wheel 2 Pull-out lifting structure 21 Main guide rail 22 Secondary guide rail 221 Upper guide groove 222 Lower guide groove 223 Inclined guide groove 23 Sliding rail corner surface 231 Sliding positioning pin 3 support frame structure 31 side table frames 32 connecting beams 321 First Roll 322 Fixed Mount 4-leg structure Detailed description
[0017] The implementation of the utility model is explained below using specific examples. Those skilled in the field can easily understand the other advantages and effects of the utility model from the content disclosed in this description.
[0018] It should be noted that the structures, proportions, dimensions, etc., shown in the drawings accompanying this description are used solely for the understanding and reference of those skilled in the art in this field, in accordance with the content disclosed in the description, and are not intended to restrict the conditions under which the utility model may be implemented. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the dimensions, without affecting the effects and objectives achievable by the utility model, should still fall within the scope covered by the technical content of the utility model. The following detailed description is not to be considered limiting, and the scope of the embodiments of this application is defined solely by the published claims.The terminology used here serves only to describe specific embodiments and is not intended to limit the application. Spatially relative terms such as "top", "bottom", "left", "right", "below", "lower", "bottom", "bottom", "above", "top", etc. may be used here to facilitate the description of the relationship between one element or feature and another element or feature as shown in the drawings.
[0019] Unless expressly stated and defined otherwise, terms such as "assemble," "connect," "link," "fasten," "hold," etc., are to be interpreted broadly in the utility model. For example, it could be a permanent connection, a detachable connection, or an integral connection; it could be a mechanical connection or an electrical connection; it could be a direct connection or an indirect connection via an intermediary element, or it could be the internal communication between two elements. Persons skilled in the art with average knowledge can understand the specific meanings of the aforementioned terms in the utility model based on the specific situation.
[0020] Furthermore, as used here, the singular forms "ein," "eine," "einer," and "das" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is further understood that the terms "umfassen" and "beinhalten" indicate the existence of the specified features, operations, elements, components, articles, types, and / or groups, but do not exclude the existence, occurrence, or addition of one or more other features, operations, elements, components, articles, types, and / or groups. The terms "or" and "and / or," as used here, are interpreted inclusively, meaning either one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "one of the following: A; B; C; A and B; A and C; B and C; A, B, and C."“Exceptions to this definition only occur when the combinations of elements, functions, or operations are in some way inherently incompatible with each other.
[0021] To clarify the objectives, technical solutions, and advantages of the utility model, a further detailed description of the technical solutions in the exemplary embodiments of the utility model is given below, based on the exemplary embodiments in conjunction with the drawings. It is understood that the specific exemplary embodiments described here serve only to illustrate the invention and not to limit it. As in the Fig. As shown in Figures 1-7, the utility model offers a lifting and sliding table, comprising: a tabletop structure 1, wherein the tabletop structure 1 comprises a central tabletop 11 and two side tabletops 12 arranged on both sides of the central tabletop 11; two sets of pull-out lifting structures 2, each pull-out lifting structure 2 comprising a main slide rail 21, a secondary slide rail 22 arranged parallel to the main slide rail 21 and two slide rail angle surfaces 23 arranged sliding between the main slide rail 21 and the secondary slide rail 22; the secondary slide rail 22 has on its side facing the main slide rail 21 an upper guide groove 221 which is flanked by two lower guide grooves 222.The middle sections of the upper guide groove 221 and each lower guide groove 222 are connected to each other via inclined guide grooves 223; the two side table tops 12 are each mounted on corresponding slide rail corner surfaces 23, while the middle table top 11 is mounted on the secondary slide rail 22; the two slide rail corner surfaces 23 slide along the main slide rail 21 and alternate between the upper guide groove 221 and the lower guide grooves 222 via the inclined guide grooves 223. When the two side tabletops 12 are pulled to either side of the middle tabletop 11, the two corner surfaces 23 of the sliding rails slide along the main sliding rail 21 to either side of the middle tabletop 11. As they pass through the inclined guide groove 223 from the upper guide groove 221 to the lower guide groove 222, the middle tabletop 11 rises on the secondary sliding rail 22 relative to the side tabletops 12; subsequently, the two corner surfaces 23 of the sliding rails slide within the corresponding lower guide grooves 222 and move the two side tabletops 12 into a horizontal alignment with the middle tabletop 11, thereby moving the lifting and sliding table into the unfolded position; by pulling the two side tabletops 12 in the opposite direction, the two corner surfaces 23 of the sliding rails slide along the main sliding rail 21 towards the middle tabletop 11.When they slide from the lower guide groove 222 to the upper guide groove 221 via the inclined guide groove 223, the middle tabletop 11 lowers on the secondary guide rail 22 relative to the side tabletops 12. Subsequently, the two guide rail corner surfaces 23 slide within the upper guide groove 221 and pull the two side tabletops 12 over the middle tabletop 11, thereby moving the lifting and sliding table into the folded position.
[0022] When using the lifting and sliding table of the utility model, pulling the two side tabletops 12 to either side of the central tabletop 11, when a larger table surface is required, causes the two side tabletops 12 to slide over the corresponding corner surfaces 23 of the sliding rails to either side of the central tabletop 11. As the corner surfaces 23 of the sliding rails pass through the inclined guide groove 223 from the upper guide groove 221 to the lower guide groove 222, the central tabletop 11 rises on the secondary guide rail 22 relative to the side tabletops 12; subsequently, the two corner surfaces 23 of the sliding rails slide within the corresponding lower guide grooves 222 and move the two side tabletops 12 into a horizontal alignment with the central tabletop 11, thereby moving the lifting and sliding table into the unfolded position.This expands the tabletop space and meets the needs of several people using it simultaneously.
[0023] If a large tabletop is not required, pulling the two side tabletops 12 in the opposite direction causes the two corner surfaces 23 of the sliding rails to slide from the lower guide groove 222 over the inclined guide groove 223 to the upper guide groove 221. As a result, the middle tabletop 11 lowers on the secondary guide rail 22 relative to the side tabletops 12. Subsequently, the two corner surfaces 23 of the sliding rails slide within the upper guide groove 221 and pull the two side tabletops 12 over the middle tabletop 11, thus folding the lift-and-slide table into its folded position. This reduces the required floor space and also meets the needs of a smaller number of simultaneous users.
[0024] Furthermore, the lifting and sliding table of the utility model increases the extension range of the side tabletops 12 on the main slide rail 21 by arranging two slide rail corner surfaces 23 between the main slide rail 21 and the secondary slide rail 22. The side tabletops 12 can slide over a larger area, allowing them to achieve a greater extension ratio with the central tabletop 11 when extended, thus creating a large-format central tabletop 11. This enables the lifting and sliding table to cover a wider area when extended, making it more adaptable to various spaces and scenarios.
[0025] In this embodiment, as in the Fig. As shown in Figures 4-6, each of the two corner surfaces 23 of the slide rails is provided with a sliding positioning pin 231, wherein the corner surfaces 23 of the slide rails slide along the main slide rail 21 and the sliding positioning pins 231 move via the inclined guide groove 223 between the upper guide groove 221 and the lower guide groove 222. The sliding positioning pin 231 enables smooth sliding from the upper guide groove 221 to the lower guide groove 222 via the inclined guide groove 223, thereby allowing the side tabletop 12 to slide into a horizontal alignment with the middle tabletop 11, or from the lower guide groove 222 to the upper guide groove 221, thereby bringing the middle tabletop 11 under the side tabletop 12 and thus achieving smooth raising and lowering of the middle tabletop 11.
[0026] In this embodiment, as in the Fig. As shown in Figures 1-5, it further comprises a support frame structure 3, wherein the sliding rail corner surfaces 23 extend to the outside of the support frame structure 3. The support frame structure 3 has a rectangular shape, comprising two side table frames 31 and two connecting beams 32, which are positioned between the two side table frames 31 and form an enclosure with the two side table frames 31 and the two connecting beams 32, wherein two sets of pull-out lifting structures 2 are arranged on the inside surfaces of the two side table frames 31, and the two sets of pull-out lifting structures 2 are arranged parallel to each other. The support frame structure 3 formed by the two side table frames 31 and the two connecting beams 32 provides a stable support base and ensures the stability and safety of the pull-out lifting structures 2 during use.
[0027] In this embodiment, as in the Fig. As shown in Figures 1-3, it further comprises two sets of leg structures 4, each set of leg structures 4 being arranged on both sides of the support frame structure 3. The leg structure 4 has a square leg tube structure. The leg structure 4, designed as a square leg tube structure, can effectively distribute and bear the weight and pressure from the support frame structure 3, thus ensuring the stability of the entire structure.
[0028] In this embodiment, as in the Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. As shown in Figure 7, the connecting beams 32 are provided with first rollers 321, and the underside of the side table top 12 is provided with a first sliding groove 121 in which the first roller 321 can slide. When the sliding rail angle surface 23 drives the side table top 12 to slide, the first roller 321 slides within the first sliding groove 121. The connecting beam 32 is provided with a fixed bracket 322, and the first roller 321 is mounted on the connecting beam 32 via the fixed bracket 322. When the two side tabletops 12 slide to the left and right on both sides of the middle tabletop 11, the first roller 321 slides within the first sliding groove 121, which allows the side tabletop 12 to move smoothly, effectively limits horizontal wobble of the side tabletop 12 and prevents lateral swaying and sinking of the tabletop, thereby increasing the stability and durability of the entire lifting and sliding table.
[0029] In this embodiment, as in the Fig. 1, Fig. As shown in Figure 4, the corner surfaces 23 of the sliding rails extend to the outside of the side table frame 31. This further increases the sliding rail travel of the side tabletops 12, allowing them to slide a greater distance inwards or outwards and thus support a larger central tabletop 11. This enables the central tabletop 11, when unfolded, to reach a size almost equal to or even larger than that of the side tabletops 11, further improving the tabletop unfolding ratio and meeting the user's need for a spacious work area.
[0030] In this embodiment, the main guide rail 21 is provided with a second roller and a steel cable connected to the second roller. The steel cable is used to connect the two side tabletops 12, which are mounted on the two corner faces 23 of the guide rail. Connecting the two side tabletops 12 with a steel cable ensures that the two side tabletops 12 remain synchronized during sliding. When one side tabletop 12 moves, the other side tabletop 12 moves at the same speed and over the same distance, thus preventing misalignment or unevenness between the tabletops and reducing wobble of the side tabletops 12 during sliding.
[0031] In this embodiment, as in Fig.As shown in Figure 7, the underside of the side tabletop 12 is provided with a scratch-resistant wheel 122. Preferably, there are two scratch-resistant wheels 122, each arranged on the underside of the side tabletop 12 near the two side edges closest to the middle tabletop 11. When the side tabletop 12 is folded in, the scratch-resistant wheel 122 gently presses against the top of the middle tabletop 11 and exerts a uniform supporting force on the middle tabletop 11, effectively preventing tabletop deformation due to prolonged periods of inactivity or improper storage. When the side tabletop 12 is extended, the scratch-resistant wheel 122 rolls on the middle tabletop 11.This rolling contact significantly reduces frictional resistance, makes the movement of the side tabletop 12 easier and smoother, prevents the middle tabletop 11 from being scratched by the side tabletop 12, and makes use more convenient.
[0032] In summary, the lifting and sliding table of the utility model has the following advantages: (1) Convenient change of state: The change between folded and unfolded states is achieved by pulling the side tabletops 12, which accommodates various usage scenarios. (2) Realization of a large-format central tabletop: By arranging two slide rail corner surfaces 23 between the main slide rail 21 and the secondary slide rail 22, and extending the slide rail corner surfaces 23 to the outside of the side table frame 31, the extension travel of the side tabletops 12 on the main slide rail 21 is significantly increased. This allows the central tabletop 11, after being unfolded, to reach a size that is almost equal to or even larger than that of the side tabletops 12, thus improving the tabletop extension ratio. (3) High stability: The leg structure 4 has a square leg tube structure which can effectively distribute and bear the weight and pressure from the support frame structure 3, thus ensuring the stability of the lifting and sliding table when unfolded. (4) Prevention of scratches on the middle tabletop: The underside of the side tabletop 12 is provided with a scratch protection wheel 122, which prevents friction between the underside of the side tabletop 12 and the top of the middle tabletop 11, avoids scratches on the surface of the middle tabletop 11 and prevents tabletop deformation. (5) Synchronized sliding: By connecting the two side tabletops 12 with a steel cable, it is ensured that the two side tabletops 12 remain synchronized during sliding.
[0033] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utility.
[0034] The above embodiments serve only to illustrate the principles and effects of the utility model and are not intended to limit it. Any person with expertise in this field may modify or amend the above embodiments without departing from the spirit and scope of the utility model. Therefore, any equivalent modifications or amendments made by a person skilled in the art with average knowledge, without departing from the spirit and technical ideas disclosed by the utility model, shall continue to be covered by the claims of the utility model.
Claims
A lifting and sliding table, characterized in that it comprises: a tabletop structure (1), wherein the tabletop structure (1) comprises a central tabletop (11) and two side tabletops (12) arranged on both sides of the central tabletop (11); two sets of sliding lifting assemblies (2), wherein each sliding lifting assembly (2) comprises a main slide rail (21), a secondary slide rail (22) arranged parallel to the main slide rail (21), and two slide rail angle surfaces (23) arranged to slide between the main slide rail (21) and the secondary slide rail (22); The secondary slide rail (22) has an upper guide groove (221) on its side facing the main slide rail (21), which is flanked by two lower guide grooves (222).The central sections of the upper guide groove (221) and each lower guide groove (222) are connected to each other via inclined guide grooves (223); The two side tabletops (12) are each mounted on corresponding slide rail corner faces (23), while the central tabletop (11) is mounted on the secondary slide rail (22); The two slide rail corner faces (23) slide along the main slide rail (21) and alternate between the upper guide groove (221) and the lower guide grooves (222) via the inclined guide grooves (223); wherein, when the two side tabletops (12) are pulled to either side of the central tabletop (11), the two slide rail corner faces (23) slide along the main slide rail (21) to either side of the central tabletop (11).When they pass the inclined guide groove (223) from the upper guide groove (221) to the lower guide groove (222), the middle table top (11) rises on the secondary slide rail (22) relative to the side table tops (12); Subsequently, the two slide rail corner surfaces (23) slide within the corresponding lower guide grooves (222) and move the two side table tops (12) into a horizontal alignment with the middle table top (11), thereby moving the lifting and sliding table into the unfolded state; By pulling the two side tabletops (12) in the opposite direction, the two corner surfaces of the slide rails (23) slide along the main slide rail (21) towards the middle tabletop (11); as they slide from the lower guide groove (222) to the upper guide groove (221) via the inclined guide groove (223), the middle tabletop (11) lowers on the secondary slide rail (22) relative to the side tabletops (12).Subsequently, the two corner surfaces of the sliding rails (23) slide within the upper guide groove (221) and pull the two side table plates (12) over the middle table plate (11), thereby moving the lifting and sliding table into the folded state. The lifting and sliding table according to claim 1, characterized in that each of the two slide rail corner surfaces (23) is provided with a sliding positioning pin (231), wherein the slide rail corner surfaces (23) slide along the main slide rail (21), and the sliding positioning pins (231) move to switch between the upper guide groove (221) and the lower guide groove (222) via the inclined guide groove (223). The lifting and sliding table according to claim 1, characterized in that it further comprises a support frame structure (3), wherein the sliding rail corner surfaces (23) extend to the outside of the support frame structure (3). The lifting and sliding table according to claim 3, characterized in that the support frame structure (3) has a rectangular shape, wherein the support frame structure (3) comprises two side table frames (31) and two connecting beams (32) which are positioned between the two side table frames (31) and form an enclosure with the two side table frames (31) and the two connecting beams (32), wherein two sets of pull-out lifting structures (2) are arranged on the inner sides of the two side table frames (31). The lifting and sliding table according to claim 3 or 4, characterized in that it further comprises two sets of leg structures (4), each set of leg structures (4) being arranged on both sides of the support frame structure (3). The lifting and sliding table according to claim 4, characterized in that the connecting beams (32) are provided with first rollers (321), the underside of the side table top (12) is provided with a first sliding groove (121) in which the first roller (321) can slide; when the sliding rail angle surface (23) drives the side table top (12) to slide, the first roller (321) slides within the first sliding groove (121). The lifting and sliding table according to claim 6, characterized in that the connecting beam (32) is provided with a fixed support (322), and the first roller (321) is mounted on the connecting beam (32) via the fixed support (322). The lifting and sliding table according to claim 1, characterized in that the main slide rail (21) is provided with a second roller and a steel cable connected to the second roller, wherein the steel cable is used to connect the two lateral table tops (12) which are mounted on the two slide rail corner surfaces (23). The lifting and sliding table according to claim 1, characterized in that the underside of the side table top (12) is provided with a scratch protection wheel (122). The lifting and sliding table according to claim 5, characterized in that the leg structure (4) has a square leg tube structure.