Lifting type drawing table
By designing a liftable pull-out table, the relative movement of the movable frame and the lifting slider enables easy operation of the movable tabletop, solving the problems of cumbersome operation and reliance on multiple people for assistance in existing pull-out extension tables.
Patent Information
- Application Number
- CN202520110063.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing pull-out tables are cumbersome to operate and require multiple people to assist in unfolding or folding the tabletop.
A liftable pull-out table was designed. By pulling out the movable frame and coordinating with the lifting slider, the movable tabletop can be lifted and stored. The structure is simple and suitable for single-person operation.
This invention enables easy operation of the movable tabletop, allowing a single person to unfold and fold the tabletop, thus solving the problems of cumbersome operation and reliance on multiple people in existing technologies.
Smart Images
Figure CN223830541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture technology, and in particular to a lift-up pull-out table. Background Technology
[0002] In today's fast-paced and diverse society, people's needs for furniture are constantly evolving. Tables, as an indispensable piece of furniture in daily life, have also become more diverse and specialized in their types and designs. The market offers a wide variety of tables, meticulously categorized according to their uses to meet the needs of different occasions and activities. For example, we have desks designed specifically for the workplace, dining tables for family meals, school desks for educational environments, computer desks designed for personal computer use, and study desks that provide a comfortable space for studying and reading. Each type of table, with its unique design, provides optimal support and convenience for a specific activity.
[0003] Beyond the segmentation of uses, the structural design of tables is constantly being innovated and improved. The emergence of height-adjustable desks allows users to easily adjust the desk height according to their height and work habits, achieving a healthier and more comfortable working posture. Folding desks, with their easy storage and space-saving features, have become an ideal choice for small living spaces. Extendable desks, with their flexible expansion and storage functions, can adapt to various usage scenarios and are increasingly favored by home users.
[0004] Pull-out tables, as a type of extendable table, expand and retract their desktop through a simple pull-out motion, providing users with more space and convenience. However, existing pull-out table designs are often complex, requiring multiple steps to unfold or fold the desktop. This not only increases the difficulty of use for users but also usually requires assistance from others. To solve these problems, the market urgently needs a new type of pull-out table that is simple in structure, easy to operate, and allows users to unfold and fold the desktop independently. Utility Model Content
[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide a height-adjustable pull-out table, which solves the problem that the transformation operation of the existing pull-out extension table is cumbersome and requires the assistance of multiple people.
[0006] To solve the above-mentioned technical problems, this utility model provides a height-adjustable pull-out table, comprising:
[0007] A fixed frame and a movable frame are provided, with a main rail and a secondary rail respectively on the fixed frame and the movable frame. The secondary rail is slidably disposed on the main rail, and the main rail is provided with a positioning element and the secondary rail is provided with a limit pin.
[0008] A fixed tabletop and a movable tabletop, wherein the fixed tabletop is mounted on the main rail and the movable tabletop is mounted on the secondary rail;
[0009] A lifting slider is fixed to the bottom of the movable tabletop and slidably mounted on the sub-rail. The lifting slider has a sliding groove and a positioning pin that cooperates with the positioning component. The limiting pin is movably mounted on the sliding groove, which includes a horizontal lower groove and an upper inclined groove connected to the horizontal lower groove. Pushing and pulling the movable frame causes the lifting pull-out table to switch between an unfolded state and a retracted state. In the retracted state, the limiting pin is located in the upper inclined groove, and the movable tabletop is located at the bottom of the fixed tabletop. In the unfolded state, the limiting pin is located in the horizontal lower groove. The movable tabletop is lifted by the lifting slider and combined with the fixed tabletop to form a complete extended tabletop.
[0010] As a more preferred embodiment, the upper inclined groove is connected to the middle of the lower horizontal groove. When the limiting pin moves along the upper inclined groove to the lower horizontal groove, it first moves away from the fixed frame in the lower horizontal groove. This is to ensure that the movable table is pulled out from the bottom of the fixed table and moves away from the fixed table before it starts to lift, thus avoiding interference with the fixed table during the lifting process. After the movable table has finished lifting, it pushes the movable frame in the opposite direction to make the limiting pin move closer to the fixed frame in the lower horizontal groove, thereby making the movable table and the fixed table fit together.
[0011] As a more preferred embodiment, the fixed frame is provided with two main rails; the movable frame is provided with two auxiliary rails, and the auxiliary rails are slidably mounted on their respective main rails.
[0012] As a more preferred method, the fixed tabletop and the movable tabletop are respectively mounted on the two main rails and the auxiliary rails, thereby providing more stable support for the fixed tabletop and the movable tabletop.
[0013] As a more preferred method, the bottom of the movable table is provided with rollers, and the movable table slides on the sub-rail via the rollers. This reduces the friction between the movable table and the sub-rail, making the sliding between the movable table and the sub-rail smoother.
[0014] As a more preferred method, the main rail is provided with a main slide groove, and a main pulley is provided in the main slide groove. The secondary rail is provided with a secondary slide groove, and a secondary pulley is provided in the secondary slide groove. The main pulley is connected to the secondary rail, and the secondary pulley is connected to the main rail. The unfolding and folding of the lifting pull-out table is realized by the sliding of the main pulley and the secondary pulley in the main slide groove and the secondary slide groove, respectively.
[0015] As a more preferred method, the lifting slider is also provided with a stop block and a stop post. The rotation of the stop block is set on the lifting slider, and the stop post is used to restrict the upward rotation of the stop block. The limiting pin rotates the stop block to set the stop block on the sliding groove, thereby limiting the movement of the limiting pin according to the setting in the horizontal lower groove or the upper inclined groove.
[0016] As a more preferred embodiment, the positioning element includes a connecting portion and a positioning portion, and the positioning element is connected to the main rail via the connecting portion.
[0017] As a more preferred embodiment, the positioning part is provided with a lifting hole, and the lifting hole is provided with a positioning port facing the positioning pin. When the lifting slider slides on the sub-rail, the positioning pin enters the lifting hole through the positioning port. The lifting hole limits the positioning pin while satisfying the lifting action of the lifting slider.
[0018] As a more preferred embodiment, the liftable pull-out table also includes several legs, which are fixed to the bottom of the fixed frame and the movable frame to provide support.
[0019] As described above, the lifting pull-out table of this utility model has the following beneficial effects: When in use, in its folded state, the movable tabletop is located at the bottom of the fixed tabletop. Pulling the movable frame away from the fixed frame causes the secondary rail to slide on the main rail, and the movable tabletop is pulled out from the bottom of the fixed tabletop. At this time, the positioning pin on the lifting slider is limited by the positioning component. Continuing to pull the movable frame backward, since the lifting slider is limited, the movable frame slides relative to the lifting slider. The limiting pin moves along the upper inclined groove towards the lower horizontal groove. When it reaches the lower horizontal groove, the lifting tabletop causes the movable tabletop to rise and merge with the fixed tabletop to form a complete unit. The extended tabletop is then switched to the unfolded state. Next, the movable tabletop is pushed in the opposite direction, causing the limiting pin to move along the horizontal lower groove towards the upward tilting groove. During this process, the movable tabletop descends to be level with the groove at the bottom of the fixed tabletop. The movable frame is then pushed further, causing the movable tabletop to be stored at the bottom of the fixed tabletop, completing the switch from the unfolded state to the folded state. It can be seen that whether switching from the folded state to the unfolded state or vice versa, only the movable frame needs to be pulled out. While pulling out the movable frame, the relative movement of the lifting slider and the secondary rail is used to lift the movable tabletop, thereby achieving the storage of the movable tabletop and its connection with the fixed tabletop. The operation is simple and convenient, suitable for one person.
[0020] In summary, the lifting pull-out table of this utility model achieves the storage of the movable tabletop and the expansion of the fixed tabletop simply by pulling out the movable frame, combined with the relative movement of the lifting slider and the sub-rail. The structure is simple and easy to operate, solving the problems of cumbersome deformation operation and reliance on multiple people for the assistance of existing pull-out extension tables. Attached Figure Description
[0021] Figure 1 The diagram shown is an exploded view of the retractable lifting table of this utility model in its closed state.
[0022] Figure 2 Displayed as Figure 1 A magnified view of a portion of region A in the middle;
[0023] Figure 3 The diagram shows the structure of the pull-out table of this utility model in its folded state;
[0024] Figure 4 The diagram shows the structure of the main rail and the auxiliary rail of the lifting pull-out table of this utility model.
[0025] Figure 5 The diagram shows the unfolded state of the lifting pull-out table of this utility model.
[0026] Component designation explanation
[0027] 1. Fixture
[0028] 11 Main Track
[0029] 111 Main Slide
[0030] 112 Main pulley
[0031] 12 positioning components
[0032] 121 Connecting part
[0033] 122 Positioning Department
[0034] 122a Lifting Hole
[0035] 122b positioning port
[0036] 2. Movable rack
[0037] 21 Suborbital
[0038] 211 Sub-slide groove
[0039] 212 Secondary pulley
[0040] 213 Limit pin
[0041] 3. Fixed tabletop
[0042] 31 Receiving slot
[0043] 4. Movable table
[0044] 41 Rollers
[0045] 5 Lifting slider
[0046] 51 Positioning Pin
[0047] 52 Sliding groove
[0048] 521 Horizontal Lower Tank
[0049] 522 Upper Inclined Groove
[0050] 53 Stop block
[0051] 6 legs
[0052] 7 Auxiliary Lifting Components Detailed Implementation
[0053] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0054] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.
[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0056] 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 “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude 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” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.
[0057] like Figures 1 to 5 As shown, this utility model provides a height-adjustable pull-out table, comprising:
[0058] A fixed frame 1 and a movable frame 2 are provided. A main rail 11 and a secondary rail 21 are respectively provided on the fixed frame 1 and the movable frame 2. The secondary rail 21 is slidably disposed on the main rail 11. A positioning element 12 is provided on the main rail 11, and a limit pin 213 is provided on the secondary rail 21.
[0059] The fixed tabletop 3 and the movable tabletop 4 are provided. The fixed tabletop 3 is set on the main rail 11 and a receiving groove 31 adapted to the movable tabletop 4 is provided between the fixed tabletop 3 and the main rail 11. The movable tabletop 4 is set on the secondary rail 21.
[0060] The lifting slider 5 is fixed to the bottom of the movable table 4 and slidably mounted on the sub-rail 21.
[0061] The lifting slider 5 is provided with a sliding groove 52 and a positioning pin 51 that cooperates with the positioning component 12. The limiting pin 213 is movably disposed on the sliding groove 52. The sliding groove 52 includes a horizontal lower groove 521 and an upper inclined groove 522 that communicates with the horizontal lower groove 521. Pushing and pulling the movable frame 2 causes the lifting pull-out table to switch between an unfolded state and a retracted state. In the retracted state, the limiting pin 213 is located in the upper inclined groove 522, and the movable table 4 is disposed in the receiving groove 31. In the unfolded state, the limiting pin 213 is located in the horizontal lower groove 521, and the movable table 4 is lifted by the lifting slider 5 and combined with the fixed table 3 to form a complete extended table.
[0062] To better illustrate this utility model of a height-adjustable pull-out table, the following specific application will be used as an example; when in use, the height-adjustable pull-out table, in its retracted state, is as follows: Figure 1 as well as Figure 3 As shown, the movable table 4 is disposed in the receiving groove 31. Pulling the movable frame 2 away from the fixed frame 1 causes the secondary rail 21 to slide on the main rail 11, and the movable table 4 is pulled out of the receiving groove 31. At this time, the positioning pin 51 on the lifting slider 5 is limited by the positioning member 12. If the movable frame 2 is pulled backward, the movable frame 2 and the lifting slider 5 slide relative to each other because the lifting slider 5 is limited. The limiting pin 213 moves along the upper inclined groove 522 towards the horizontal lower groove 521. When it moves to the horizontal lower groove 521, the lifting table 4 is lifted and combined with the fixed table 3 to form a complete extended table. At this time, the lifting pull-out table switches to the unfolded state, as shown. Figure 5 As shown; then, push the movable table 4 in the opposite direction, causing the limiting pin 213 to move along the horizontal lower groove 521 towards the upward inclined groove 522. During this process, the movable table 4 descends to the level of the opening of the receiving groove 31, and continues to push the movable frame 2, causing the movable table 4 to be stored in the receiving groove 31, completing the switch from the unfolded state to the folded state; it can be seen that whether switching from the folded state to the unfolded state or from the unfolded state to the folded state, the entire process only requires pulling out the movable frame 2. Simultaneously, the relative movement of the lifting slider 5 and the secondary rail 21 is used to lift the movable table 4, thereby realizing the storage of the movable table 4 and its splicing with the fixed table 3. The operation is simple and convenient, suitable for one person to operate. In summary, the lifting pull-out table of this utility model only uses the pull-out of the movable frame 2, combined with the relative movement of the lifting slider 5 and the secondary rail 21, to realize the storage of the movable table 4 and the expansion of the fixed table 3. The structure is simple and the operation is convenient, solving the problem of the cumbersome deformation operation of the existing pull-out expansion table and the need for multiple people to assist.
[0063] Furthermore, in some possible embodiments of this utility model, such as Figure 1 As shown, the liftable pull-out table is also equipped with an auxiliary lifting assembly 7. The auxiliary lifting assembly 7 includes several lifting devices. The lifting devices are fixed on the movable frame 2 and abut against the movable table panel 4. The lifting devices apply an upward lifting force to the movable table panel 4. When the movable table panel 4 is pulled out from the receiving groove 31, the lifting force assists in lifting the movable table panel 4 to achieve the effect of saving effort.
[0064] In some possible embodiments of this utility model, such as Figure 1As shown, the upper inclined groove 522 is connected to the middle of the horizontal lower groove 521. When the limiting pin 213 moves along the upper inclined groove 522 to the horizontal lower groove 521, it first moves away from the fixed frame 1 in the horizontal lower groove 521 so that the movable table 4 can be pulled out from the receiving groove 31 and move away from the fixed table 3 at a certain distance before it starts to lift, so as to avoid interference with the fixed table during the lifting process. After the movable table 4 has completed the lifting, it pushes the movable frame 2 in the opposite direction so that the limiting pin 213 moves towards the fixed frame 1 in the horizontal lower groove 521, thereby making the movable table 4 and the fixed table 3 fit together.
[0065] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the lifting slider 5 is provided with two sliding grooves 52, and the sub-rail 21 is provided with two corresponding limiting pins 213. The two sliding grooves 52 and the limiting pins 213 can provide a more balanced lifting force for the lifting slider 5, making the structure run more smoothly.
[0066] In some possible embodiments of this utility model, such as Figure 1 As shown, the fixed frame 1 is provided with two main rails 11, which are respectively vertically arranged at both ends of the fixed frame 1; the movable frame 2 is provided with two auxiliary rails 21, which are respectively vertically arranged at both ends of the movable frame 2, and the auxiliary rails 21 are respectively slidably arranged on the corresponding main rails 11.
[0067] In some possible embodiments of this utility model, such as Figure 1 As shown, the fixed tabletop 3 and the movable tabletop 4 are respectively mounted on the two main rails 11 and the auxiliary rails 21, thereby providing more stable support for the fixed tabletop 3 and the movable tabletop 4.
[0068] In some possible embodiments of this utility model, such as Figure 1 As shown, the movable table 4 is provided with rollers 41 at the bottom. The movable table 4 is slidably mounted on the sub-rail 21 via the rollers 41. This reduces the friction between the movable table 4 and the sub-rail 21, making the sliding between the movable table 4 and the sub-rail 21 smoother.
[0069] In some possible embodiments of this utility model, such as Figure 4As shown, the main rail 11 is provided with a main slide groove 111, and a main pulley 112 is provided in the main slide groove 111. The secondary rail 21 is provided with a secondary slide groove 211, and a secondary pulley 212 is provided in the secondary slide groove 211. The main pulley 112 is connected to the secondary rail 21, and the secondary pulley 212 is connected to the main rail 11. The lifting pull-out table can be unfolded and folded by the sliding of the main pulley 112 and the secondary pulley 212 in the main slide groove 111 and the secondary slide groove 211, respectively. Furthermore, in this embodiment, the main slide groove 111 is disposed on the lower side of the main rail 11, and the secondary slide groove 211 is disposed on the upper side of the secondary rail 21. The main rail 11 and the secondary rail 21 are interlocked with each other. In this embodiment, the main rail 11 is disposed on the outer side of the secondary rail 21, and the secondary slide groove 211 and the limiting pin 213 on the secondary rail 21 are disposed on both sides of the secondary rail 21. The limiting pin 213 is vertically fixed on the secondary rail 21 and faces the inner side of the lifting pull-out table.
[0070] In some possible embodiments of this utility model, such as Figure 1 As shown, the lifting slider 5 is also provided with a stop block 53 and a stop post. The rotation of the stop block 53 is set on the lifting slider 5. The stop post is used to restrict the upward rotation of the stop block 53. The limiting pin 213 rotates the stop block 53 to set the stop block 53 on the sliding groove 52, thereby limiting the movement of the limiting pin 213 according to the setting in the horizontal lower groove 521 or the upper inclined groove 522.
[0071] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the positioning component 12 includes a connecting part 121 and a positioning part 122. The positioning component 12 passes through the sub-rail 21 and is connected to the main rail 11 via the connecting part 121.
[0072] In some possible embodiments of this utility model, such as Figure 2 As shown, the positioning part 122 has a lifting hole 122a, and the lifting hole 122a has a positioning port 122b facing the positioning pin 51. When the lifting slider 5 slides on the sub-rail 21, the positioning pin 51 enters the lifting hole 122a through the positioning port 122b. The lifting hole 122a limits the positioning pin 51 while satisfying the lifting action of the lifting slider 5.
[0073] In some possible embodiments of this utility model, such as Figure 1 As shown, the liftable pull-out table also includes several legs 6, which are fixed to the bottom of the fixed frame 1 and the movable frame 2 to provide support.
[0074] In summary, the lifting pull-out table of this utility model has the following advantages:
[0075] 1. Ease of operation: The movable table 4 can be lifted and stored by pulling out the movable frame 2. The operation is simple and suitable for single-person operation.
[0076] 2. Structural stability: The main rail 11 and the auxiliary rail 21 set on the fixed frame 1 and the movable frame 2 respectively provide a stable support structure; the fixed table 3 and the movable table 4 are respectively mounted on the main rail 11 and the auxiliary rail 21, which enhances the stability of the table.
[0077] 3. Space utilization: The movable table 4 can be stored in the receiving slot 31 when it is folded up, saving space.
[0078] 4. Lifting efficiency: The auxiliary lifting component 7 is designed so that the movable table 4 receives lifting assistance when it is pulled out, thus achieving a labor-saving effect.
[0079] 5. Motion balance: The lifting slider 5 is equipped with two sliding grooves 52 and corresponding limit pins 213 to provide balanced lifting force and ensure smooth operation of the structure.
[0080] 6. Smooth sliding: The bottom of the movable table 4 is equipped with rollers 41, which reduces the friction between the table and the sub-rail 21 and achieves smooth sliding.
[0081] 7. Double pulley system: The main pulley 112 and the auxiliary pulley 212 on the main rail 11 and the auxiliary rail 21 are interlocked, which improves the sliding efficiency and stability.
[0082] 8. Limiting accuracy: The stop block 53 and positioning component 12 on the lifting slider 5 precisely control the movement of the limit pin 213, ensuring the stable lifting and lowering of the lifting slider 5.
[0083] 9. Support Leg 6: The added support leg 6 provides additional support, enhancing the stability of the entire structure.
[0084] This utility model's height-adjustable pull-out table, through its innovative structural design, offers significant advantages in terms of ease of operation, structural stability, space utilization, lifting efficiency, motion balance, smooth sliding, a dual pulley system, precise positioning, and six-leg support. These design features not only enhance the user experience but also strengthen the product's practicality and market competitiveness, solving the problems of cumbersome operation and reliance on multiple people in existing pull-out tables.
[0085] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0086] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A height-adjustable pull-out table, characterized in that, include: A fixed frame (1) and a movable frame (2) are provided, with a main rail (11) and a secondary rail (21) respectively on the fixed frame (1) and the movable frame (2). The secondary rail (21) is slidably disposed on the main rail (11), and a positioning element (12) is provided on the main rail (11). A limit pin (213) is provided on the secondary rail (21). A fixed tabletop (3) and a movable tabletop (4) are provided, wherein the fixed tabletop (3) is mounted on the main rail (11) and the movable tabletop (4) is mounted on the secondary rail (21); A lifting slider (5) is fixed to the bottom of the movable table (4) and slidably mounted on the subrail (21). The lifting slider (5) is provided with a sliding groove (52) and a positioning pin (51) that cooperates with the positioning component (12). The limiting pin (213) is movably mounted on the sliding groove (52). The sliding groove (52) includes a horizontal lower groove (521) and an upper inclined groove (522) that communicates with the horizontal lower groove (521). Pushing and pulling the movable frame (2) drives the lifting pull-out table to switch between the unfolded state and the retracted state. In the retracted state, the limiting pin (213) is located above the upper inclined groove (522). The movable table (4) is mounted on the bottom of the fixed table (3). In the unfolded state, the limiting pin (213) is located in the horizontal lower groove (521), and the movable table (4) is lifted by the lifting slider (5) and combined with the fixed table (3) to form a complete extended table.
2. The height-adjustable pull-out table according to claim 1, characterized in that: The upper inclined groove (522) is connected to the middle of the horizontal lower groove (521). When unfolded, when the limiting pin (213) moves along the upper inclined groove (522) to the horizontal lower groove (521), it first moves away from the fixed frame (1) in the horizontal lower groove (521) so that the movable table (4) is pulled out from the bottom of the fixed table (3) and moves away from the fixed table (3) by a certain distance before it starts to lift, so as to avoid interference with the fixed table during the lifting process. After the movable table (4) has completed the lifting, the movable frame (2) is pushed in the opposite direction so that the limiting pin (213) moves towards the fixed frame (1) in the horizontal lower groove (521), thereby making the movable table (4) and the fixed table (3) fit together.
3. The height-adjustable pull-out table according to claim 1, characterized in that: The fixed frame (1) has two main rails (11) arranged opposite to each other; the movable frame (2) has two auxiliary rails (21) arranged opposite to each other, and the auxiliary rails (21) are respectively slidably arranged on the corresponding main rails (11).
4. The height-adjustable pull-out table according to claim 3, characterized in that: The fixed tabletop (3) and the movable tabletop (4) are respectively mounted on the two main rails (11) and the auxiliary rails (21).
5. The height-adjustable pull-out table according to claim 1, characterized in that: The movable table (4) is provided with rollers (41) at the bottom, and the movable table (4) is slidably mounted on the sub-rail (21) via the rollers (41).
6. The height-adjustable pull-out table according to claim 1, characterized in that: The main rail (11) is provided with a main slide groove (111), and a main pulley (112) is provided in the main slide groove (111). The secondary rail (21) is provided with a secondary slide groove (211), and a secondary pulley (212) is provided in the secondary slide groove (211). The main pulley (112) is connected to the secondary rail (21), and the secondary pulley (212) is connected to the main rail (11). The lifting pull-out table can be unfolded and folded by the sliding of the main pulley (112) and the secondary pulley (212) in the main slide groove (111) and the secondary slide groove (211) respectively.
7. The height-adjustable pull-out table according to claim 1, characterized in that: The lifting slider (5) is also provided with a stop block (53) and a stop post. The rotation of the stop block (53) is set on the lifting slider (5). The stop post is used to restrict the upward rotation of the stop block (53). The limiting pin (213) rotates the stop block (53) to set the stop block (53) on the sliding groove (52), thereby limiting the movement of the limiting pin (213) according to the setting in the horizontal lower groove (521) or the upper inclined groove (522).
8. The height-adjustable pull-out table according to claim 1, characterized in that: The positioning component (12) includes a connecting part (121) and a positioning part (122), and the positioning component (12) is connected to the main rail (11) through the connecting part (121).
9. The height-adjustable pull-out table according to claim 8, characterized in that: The positioning part (122) is provided with a lifting hole (122a), and the lifting hole (122a) is provided with a positioning port (122b) facing the positioning pin (51). When the lifting slider (5) slides on the sub-rail (21), the positioning pin (51) enters the lifting hole (122a) through the positioning port (122b). The lifting hole (122a) limits the positioning pin (51) while satisfying the lifting action of the lifting slider (5).
10. The height-adjustable pull-out table according to claim 1, characterized in that: The liftable pull-out table also includes several legs (6), which are fixed to the bottom of the fixed frame (1) and the movable frame (2) to provide support.