Electric lifting cabinet

Abstract

The utility model discloses an electric lifting cabinet which comprises a fixed shell, a lifting cabinet body and a lifting driving mechanism, the lifting cabinet body is installed in the fixed shell, and the lifting driving mechanism drives the lifting cabinet body to slide up and down relative to the fixed shell so that part of the lifting cabinet body can exceed the fixed shell. The fixed shell comprises an outer shell and metal supporting plates arranged on the two sides of the outer shell, linear sliding grooves are formed in the metal supporting plates, pulleys are arranged on the side faces of the lifting cabinet body, and the pulleys are embedded into the sliding grooves to roll relative to the sliding grooves so as to support the lifting cabinet body to slide up and down relative to the fixed shell in the direction of the sliding grooves. According to the electric lifting cabinet, the sliding grooves are formed in the metal supporting plates to replace conventional sliding rails for sliding of pulleys, the sliding grooves are accurate in positioning, easy to manufacture and low in cost, the reinforcing columns are arranged on the metal supporting plates on the two sides of the sliding grooves, and therefore the stability of the whole structure can be enhanced; the problem that a lifting track of a conventional electric lifting cabinet is short in service life is solved.

Description

Technical Field

[0001] The utility model relates to the field of automated furniture, and more specifically, to an electric lifting cabinet. Background Art

[0002] In the vast field of modern furniture design and manufacturing, lift-type furniture has gained widespread market favor for its unique convenience and space utilization. As a key technical component in this field, the slide rail system bears the important task of ensuring the smooth lifting and sliding of the cabinet. However, traditional slide rail designs have significant flaws in many aspects, which not only restrict the further development of lift-type furniture but also affect the actual user experience. The shortcomings of existing technologies mainly include the following aspects:

[0003] 1. Excessively high installation precision requirements: Traditional slide rail designs place stringent requirements on installation precision, presenting a primary and prominent technical bottleneck. This high-precision installation requirement not only increases the complexity and difficulty of the installation process, significantly increasing installation costs, but more seriously, even under strict installation conditions, even slight deviations can cause the slide rail to distort and misalign with the sliding direction, leading to problems such as poor sliding, lags, or even freezing. These issues directly impact the user experience and reduce overall product satisfaction.

[0004] 2. Performance degradation over long-term use: Over time, traditional slide rail systems are subjected to frequent lifting and lowering movements and frictional wear, leading to a gradual decline in performance. Increased sliding resistance not only makes operation more laborious but also increases noise, seriously impacting user comfort. More seriously, when the slide rail system wears to a certain extent, it may become stuck, causing the entire furniture system to malfunction. This not only shortens the product's lifespan but also increases maintenance costs and inconvenience for the user.

[0005] 3. High Manufacturing Costs: A complete slide system consists of multiple complex components, including guide rails, sliders, and fixings. The manufacturing, assembly, and transportation of these components require significant manpower, material, and financial resources. In the increasingly competitive furniture market, high manufacturing costs have become an unbearable burden for companies. How to effectively reduce the manufacturing costs of slide systems while ensuring product functionality has become a common challenge facing the industry.

[0006] 4. Limited Market Application: Due to the aforementioned shortcomings, traditional rail systems have, to a certain extent, limited the widespread adoption of lift furniture in the market. When choosing lift furniture, users often have concerns about the performance and quality of the rail system, which in turn influences their purchasing decisions. Furthermore, high maintenance costs and short service lives reduce user satisfaction and loyalty to lift furniture.

[0007] In summary, the conventional slide rail design has significant defects in installation precision, long-term performance, manufacturing cost, and market application. In order to overcome these defects and promote the sustainable and healthy development of the lifting furniture industry, there is an urgent need for the emergence of a new type of slide rail technology to provide a more convenient, efficient, and low-cost solution. Utility model content

[0008] The utility model aims at overcoming at least one of the above-mentioned prior art defects, and provides an electric lifting cabinet to solve the problems of excessively high installation precision requirements, short product life, high manufacturing cost, and limited market application.

[0009] The utility model adopts the technical scheme of an electric lifting cabinet, which comprises a fixed shell, a lifting cabinet body, and a lifting driving mechanism. The lifting cabinet body is installed inside the fixed shell, and the lifting driving mechanism drives the lifting cabinet body to slide up and down relative to the fixed shell so that part of the lifting cabinet body exceeds the fixed shell. The fixed shell comprises an outer shell and metal support plates arranged on both sides of the outer shell. Linear grooves are formed on the metal support plates. The lifting cabinet body is provided with pulleys on the side surface. The pulleys are embedded in the grooves and roll relative to the grooves to support the lifting cabinet body to slide up and down relative to the fixed shell along the direction of the grooves.

[0010] The grooves are formed on the metal support plates, replacing the traditional expensive slide rail system, improving the positioning accuracy, and significantly reducing the production manufacturing cost. At the same time, the metal support plates serve as the fixed plates of the grooves, greatly enhancing the stability of the overall structure and providing a more reliable support foundation for the equipment. This design not only optimizes the cost-effectiveness, but also effectively prolongs the service life of the grooves by enhancing the structural durability.

[0011] In order to improve the stability of the lifting cabinet during vertical movement, the slide is distributed along the vertical direction, and the pulleys include an upper pulley and a lower pulley. The upper pulley and the lower pulley are arranged at vertical intervals on the side of the lifting cabinet. The upper pulley and the lower pulley are simultaneously embedded in the slide and roll relative to each other, limiting the lifting cabinet from sliding up and down relative to the fixed shell in the vertical direction. The vertical slide not only optimizes space utilization, but also greatly improves the accuracy of the guide. The upper pulley and the lower pulley are arranged at vertical intervals on the side of the lifting cabinet, forming a pair of stable and efficient rolling support points. The upper pulley and the lower pulley are simultaneously embedded in the slide, and as the motor is started, they achieve relatively smooth and precise rolling in the slide. This double pulley design not only disperses the force during the lifting process, but also effectively limits any horizontal deviation of the lifting cabinet through the synergistic effect between the two, ensuring that it can only slide smoothly up and down relative to the fixed shell in the vertical direction. The lifting cabinet is driven to slide by the upper and lower pulleys with a fixed relative distance, ensuring that the side of the lifting cabinet and the pulleys are relatively stationary. This design eliminates the problems of poor sliding or noise caused by shaking or tilting of the cabinet, thereby ensuring the smoothness and quietness of the lifting action and the reliability of long-term use.

[0012] In order to install the pulley into the chute and ensure that the pulley remains stable during the lifting process, the pulley includes an outer rim, an inner rim, a bearing, and an axle. The bearing is nested and rolled on the axle. The outer rim and inner rim are arranged on the inner and outer sides of the bearing and have a larger diameter than the bearing. The axle is connected to the side of the lifting cabinet. The bearing is embedded in the chute, and the bearing diameter matches the chute width. The outer rim and inner rim have diameters larger than the chute width and are respectively distributed on the inner and outer sides of the chute to clamp the metal support plate. One end of the chute is provided with a mounting hole with an opening area larger than the outer rim or inner rim, and the mounting hole is connected to the chute. The bearing diameter matches the chute width, so that the bearing can only slide up and down relative to the fixed shell along the vertical direction of the chute. Under the action of the outer rim and inner rim, the pulley always remains relatively stationary with the metal support plate in the inner and outer directions of the metal support plate, ensuring the stability of the pulley sliding up and down relative to the fixed shell along the vertical direction of the chute. The opening area of ​​the mounting hole is larger than the outer rim or inner rim, ensuring that the pulley can be installed in the chute.

[0013] In order to make the sliding of the pulley more stable, the sides of the outer rim and the inner rim facing the metal support plate are flat, and the bearing width between the outer rim and the inner rim is equivalent to the thickness of the metal support plate, so that the friction between the outer rim and the inner rim and the metal support plate does not affect the up and down sliding of the lifting cabinet relative to the fixed shell.

[0014] In order to make the pulley support the lifting cabinet and reduce the damage to the metal support plate on both sides of the sliding groove, the diameter of the outer rim and the inner rim is 1-5mm larger than the width of the sliding groove. Since the diameter of the outer rim and the inner rim is larger than the width of the sliding groove, the force bearing area of the pulley on the metal support plate is larger, the local pressure on the metal support plate is smaller, and the damage to the metal support plate is relatively less.

[0015] In order to improve the service life of the sliding groove, the inside of the shell is provided with reinforcing columns on both sides of the sliding groove. The reinforcing columns are distributed along the direction of the sliding groove and closely contact the metal support plate. The reinforcing columns improve the maximum bearing capacity of the metal support plate, make the sliding groove less likely to deform, and also avoid the metal support plate from tilting outward or inward.

[0016] In order to make the bearing capacity of the metal support plate with the added reinforcing columns more evenly distributed and make the metal support plate less likely to deform, a parallel side of the metal support plate close to the reinforcing column is formed into a bent reinforcing plate. The bent reinforcing plate is bent towards the side of the metal support plate where the reinforcing column is provided. The bending size is equal to the thickness of the reinforcing column.

[0017] Since the lifting cabinet needs to be regularly maintained or replaced, in order to facilitate disassembly and installation, the pulley is connected to the side of the lifting cabinet through a connecting frame. The connecting frame includes a longitudinal support and a transverse support connected to each other. The upper pulley and the lower pulley are vertically arranged at an interval on the longitudinal support. The transverse support is connected to the side of the lifting cabinet. The lifting drive mechanism drives the transverse support to pull the lifting cabinet to slide up and down.

[0018] In order to improve the bearing capacity of the longitudinal support of the connecting frame and reasonably distribute the positions of the supports corresponding to each part, the longitudinal support is at least partially in the shape of Ω, including an open square main body and side wings extending from both sides of the square main body. The upper pulley and the lower pulley are vertically arranged at an interval on the square main body. The transverse support is connected to the side wings. The longitudinal support includes an open square main body, which improves the maximum bearing capacity of the longitudinal support, makes the longitudinal support less likely to be damaged, and prolongs the service life. The upper pulley and the lower pulley are vertically arranged at an interval on the square main body, which is consistent with the direction of the longitudinal support. The transverse support is connected to the side wings extending from both sides of the square main body. The transverse support is responsible for bearing the lifting cabinet. The transverse support is installed on the side of the lifting cabinet. The longitudinal support and the transverse support form a cross structure, which makes the lifting cabinet stable and does not shake.

[0019] In order to make the connecting frame connect with the lifting mechanism through a rope, the transverse support is at least partially in the shape of L, including a vertical plate and a horizontal plate connected to each other. The vertical plate is connected to the longitudinal support. The horizontal plate is connected to the side of the lifting cabinet. One or more parts of the vertical plate are bent to form a sub-horizontal plate. A rope hole is formed in the sub-horizontal plate to connect with the lifting drive mechanism.

[0020] Compared with the prior art, the beneficial effects of the utility model mainly lie in the following aspects:

[0021] 1. Simplify the installation process and reduce the installation precision requirement:

[0022] The electric lifting cabinet adopts a sliding mechanism combining the linear sliding groove on the metal support plate with the pulley on the side of the lifting cabinet body. This design significantly simplifies the installation process, as the rolling contact between the pulley and the sliding groove requires much lower installation precision than the strict alignment requirement of traditional sliding rails. Even with minor installation deviations, the pulley can smoothly roll within the sliding groove, ensuring smooth sliding of the lifting cabinet body and reducing installation difficulty and cost.

[0023] 2. Improve sliding smoothness and user experience:

[0024] The rolling contact between the pulley and the sliding groove reduces the resistance caused by friction in traditional sliding rails, making the lifting cabinet body slide up and down more smoothly and reducing jamming and noise. This not only improves user experience, but also prolongs product life by reducing performance degradation caused by friction and wear.

[0025] 3. Enhance structural stability and durability:

[0026] The metal support plate, as the main load-bearing component of the fixed shell, has high strength and stiffness, and can stably support the weight of the lifting cabinet body and the force generated by sliding. At the same time, the design of the linear sliding groove ensures that the pulley always stays on the predetermined track during sliding, enhancing the overall stability of the structure. In addition, the use of metal material also improves the durability of the product, which can withstand longer use and greater load.

[0027] 4. Reduce manufacturing cost:

[0028] Compared with traditional complete sliding rail systems, this design simplifies the component structure, reducing complexity and material consumption in the manufacturing process. The metal support plate and sliding groove are relatively simple to process, and the pulley is also easy to purchase and replace as a standard part. Therefore, the overall manufacturing cost is effectively reduced, which helps to improve the market competitiveness of the product.

[0029] 5. Improve market adaptability and user satisfaction:

[0030] Thanks to the above technical effects, the electric lifting cabinet has stronger adaptability in the market. Its simple installation, smooth sliding, stable structure and low cost all meet the expectations of modern consumers for furniture products. This will help to improve user satisfaction and loyalty to lifting furniture, promoting the widespread application and market expansion of the product. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1This is a structural diagram of the utility model.

[0032] Figure 2 This is a view from another perspective of the present invention.

[0033] Figure 3 This is a structural diagram of the connecting frame of the present utility model.

[0034] Figure 4 This is a structural diagram of the pulley of the present utility model.

[0035] Figure 5 This is a structural diagram of the longitudinal bracket of the connecting frame of the present invention.

[0036] Figure 6 This is a structural diagram of the transverse bracket of the connecting frame of the present invention. DETAILED DESCRIPTION

[0037] The drawings in this utility model are for illustrative purposes only and are not to be construed as limiting the scope of this utility model. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the products. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0038] Example

[0039] like Figure 1 As shown, an electric lifting cabinet of this embodiment includes a fixed shell 100, a lifting cabinet body 200, and a lifting mechanism 300. The lifting cabinet body 200 is installed inside the fixed shell 100, and the lifting drive mechanism 300 is installed on the inner side of the bottom plate of the fixed shell 100. The lifting drive mechanism 300 drives the lifting cabinet body 200 to slide up and down relative to the fixed shell 100 so that part of the lifting cabinet body 200 exceeds the fixed shell 100.

[0040] In this embodiment, combined with Figure 2 and Figure 3As shown, the fixed housing 100 includes an outer shell 110 and metal support plates 120 disposed on either side of the outer shell 110. The metal support plates 120 are provided with linear slide grooves 121. These slide grooves 121 replace conventional slide rails, replacing the traditional, expensive slide rail system. This improves positioning accuracy and significantly reduces manufacturing costs. Furthermore, the metal support plates 120, acting as mounting plates for the slide grooves 121, significantly enhance the overall structural stability, providing a more reliable support base for the device. This design not only optimizes cost-effectiveness, but also effectively extends the service life of the slide 121 by enhancing structural durability; the slide is distributed along the vertical direction, and the vertical slide not only optimizes space utilization, but also greatly improves the accuracy of guidance; and reinforcement columns 111 are set on both sides of the slide 121, and the reinforcement columns 111 are distributed along the direction of the slide 121 and are close to the metal support plate 120. The reinforcement column 111 and the metal support plate 120 are fixed by bolts, which increases the maximum bearing capacity of the metal support plate 120 and makes the slide less likely to deform. At the same time, it also prevents the metal support plate 120 from tipping outward or inward; a parallel side of the metal support plate 120 close to the reinforcement column 111 forms a bent reinforcement plate 123, and the bending direction of the bent reinforcement plate 123 is toward the side of the metal support plate 120 where the reinforcement column 111 is set, and the bending size is equal to the thickness of the reinforcement column 111. A pulley 210 is provided on the side of the lifting cabinet 200 (not marked in the figure). The pulley 210 is embedded in the slide groove 121 and rolls vertically relative to the slide groove 121 along the fixed shell 100. The pulley 210 includes an upper pulley 211 and a lower pulley 212. The upper pulley 211 and the lower pulley 212 are connected to the side of the lifting cabinet 200 through the connecting frame 400. The upper pulley 211 and the lower pulley 212 are arranged at vertical intervals on the connecting frame 400.

[0041] In this embodiment, combined with Figure 3 and 4As shown, the upper pulley 211 and the lower pulley 212 are both composed of an outer rim 213, an inner rim 214, a bearing 215 and an axle 216. The axle 216 is connected to the connecting frame 400, and the bearing 215 is nested on the axle 216 and rolls. The outer rim 213 and the inner rim 214 are arranged on the inner and outer sides of the bearing 215, and the diameters of the outer rim 213 and the inner rim 214 are larger than the diameter of the bearing 215. Since the bearing 215 is embedded in the slide groove 121, the diameter of the bearing 215 matches the width of the slide groove 121. Therefore, the pulley 210 can only slide up and down relative to the fixed shell along the direction of the slide groove 121. The sides of the outer rim 213 and the inner rim 214 facing the metal support plate 120 are flat, and the width of the bearing 215 between the outer rim 213 and the inner rim 214 is equivalent to the thickness of the metal support plate 120, so that the outer rim 213 and the inner rim 214 can clamp the metal support plate 120, and the friction between the outer rim 213 and the inner rim 214 and the metal support plate 120 does not affect the up and down sliding of the connecting frame 400 relative to the fixed shell 100. Under the action of the outer rim 213 and the inner rim 214, the pulley 210 always remains relatively stationary with the metal support plate 120 in the inner and outer directions of the metal support plate 120, ensuring the stability of the pulley 210 sliding up and down relative to the fixed shell 100 along the vertical direction of the slide groove 121. Since the portion where the diameter of the outer rim 213 and the inner rim 214 is larger than the width of the slide groove 121 is the force-bearing surface of the pulley on the metal support plate 120, the larger the width, the larger the force-bearing area, the smaller the local pressure on the metal support plate 120, and the less damage to the metal support plate 120, the diameter of the outer rim 213 and the inner rim 214 is set to be between 1 and 5 mm larger than the width of the slide groove 121.

[0042] In this embodiment, combined with Figure 3 and Figure 5 As shown, the connecting frame 400 includes a longitudinal bracket 410 and a transverse bracket 420 that are vertically connected to each other, the upper pulley 211 and the lower pulley 212 are arranged at vertical intervals on the longitudinal bracket, and the transverse bracket 420 is connected to the side of the lifting cabinet 200, so that the lifting cabinet 200 is easy to disassemble and install during maintenance or replacement. A part of the cross section of the longitudinal bracket 410 is Ω-shaped, including an open square main body 411 and side wings 412 extending from both sides of the square main body 411. The square main body 411 is against the metal support plate 120, and the side wings 412 are connected to the transverse bracket by nuts and bolts. The square main body 411 increases the maximum bearing capacity of the longitudinal bracket 410, making the longitudinal bracket 410 less likely to be damaged and extending the service life of the connecting frame 400.

[0043] In this embodiment, combined with Figure 3 and Figure 6As shown, the cross section of the horizontal bracket 420 is L-shaped, including a vertical plate 421 and a horizontal plate 422 connected to each other. The vertical plate 421 is connected to the longitudinal bracket 410, and the horizontal plate 422 is connected to the side of the lifting cabinet 200, which is responsible for supporting the lifting cabinet 200. One or more bends on the vertical plate 421 form a sub-horizontal plate 423, and a rope hole 424 is provided on the sub-horizontal plate 423. The rope passes through the rope hole 424 and is connected to the lifting drive mechanism 300. The lifting drive mechanism 300 drives the horizontal bracket 420 to pull the lifting cabinet 200 to slide up and down.

[0044] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electric lifting cabinet, comprising a fixed shell (100), a lifting cabinet body (200) and a lifting drive mechanism (300), wherein the lifting cabinet body (200) is installed inside the fixed shell (100), and the lifting drive mechanism (300) drives the lifting cabinet body (200) to slide up and down relative to the fixed shell (100) so that part of the lifting cabinet body (200) extends beyond the fixed shell (100), characterized in that: The fixed housing (100) comprises an outer shell (110) and metal support plates (120) arranged on both sides of the outer shell (110); a linear slide groove (121) is provided on the metal support plate (120); a pulley (210) is provided on the side of the lifting cabinet (200); the pulley (210) is embedded in the slide groove (121) and rolls relative to the slide groove (121) to support the lifting cabinet (200) to slide up and down relative to the fixed housing (100) along the direction of the slide groove (121).

2. The electric lift cabinet according to claim 1, characterized in that: The slide groove (121) is distributed along the vertical direction, and the pulley (210) includes an upper pulley (211) and a lower pulley (212). The upper pulley (211) and the lower pulley (212) are arranged at a vertical interval on the side of the lifting cabinet (200). The upper pulley (211) and the lower pulley (212) are simultaneously embedded in the slide groove (121) and roll relative to the slide groove (121), thereby limiting the lifting cabinet (200) from sliding up and down relative to the fixed shell (100) in the vertical direction.

3. The electric lift cabinet according to claim 1, characterized in that: The pulley (210) includes an outer rim (213), an inner rim (214), a bearing (215) and an axle (216); the bearing (215) is nested on the axle (216) and rolls; the outer rim (213) and the inner rim (214) are arranged on both sides of the bearing (215) and have a diameter larger than the bearing (215); the axle (216) is connected to the side of the lifting cabinet (200); the bearing (215) is embedded in the slide groove (121) The diameter of the bearing (215) matches the width of the slide groove (121); the diameters of the outer rim (213) and the inner rim (214) are larger than the width of the slide groove (121) and are respectively distributed on the inner and outer sides of the slide groove (121) to form a clamp for the metal support plate (120); one end of the slide groove (121) is provided with a mounting hole (122) having an opening area larger than that of the outer rim (213) or the inner rim (214); and the mounting hole (122) is connected to the slide groove (121).

4. The electric lift cabinet according to claim 3, characterized in that: The sides of the outer rim (213) and the inner rim (214) facing the metal support plate (120) are flat, and the width of the bearing (215) between the outer rim (213) and the inner rim (214) is equivalent to the thickness of the metal support plate (120), so that the friction between the outer rim (213) and the inner rim (214) and the metal support plate (120) does not affect the upward and downward sliding of the lifting cabinet (200) relative to the fixed shell (100).

5. The electric lift cabinet according to claim 4, characterized in that: The diameters of the outer rim (213) and the inner rim (214) are larger than the width of the chute (121) by 1 to 5 mm.

6. The electric lift cabinet according to any one of claims 1 to 5, characterized in that: Reinforcement columns (111) are provided on both sides of the slide groove (121) on the inner side of the housing (110), and the reinforcement columns (111) are distributed along the slide groove (121) and are closely attached to the metal support plate (120).

7. The electric lift cabinet according to claim 6, characterized in that: A parallel side of the metal support plate (120) close to the reinforcing column (111) forms a bent reinforcing plate (123), the bending direction of the bent reinforcing plate (123) is toward the side of the metal support plate (120) where the reinforcing column (111) is provided, and the bending dimension is equal to the thickness of the reinforcing column (111).

8. The electric lift cabinet according to any one of claims 2 to 5, characterized in that: The pulley (210) is connected to the side of the lifting cabinet (200) through a connecting frame (400). The connecting frame (400) includes a longitudinal bracket (410) and a transverse bracket (420) connected to each other. The upper pulley (211) and the lower pulley (212) are arranged at a vertical interval on the longitudinal bracket (410). The transverse bracket (420) is connected to the side of the lifting cabinet (200). The lifting drive mechanism (300) drives the transverse bracket (420) to pull the lifting cabinet (200) to slide up and down.

9. The electric lift cabinet according to claim 8, characterized in that: The longitudinal support (410) has at least a partial Ω-shaped cross section, comprising an open square body (411) and side wings (412) extending from both sides of the square body (411); the upper pulley (211) and the lower pulley (212) are arranged at vertical intervals on the square body (411); and the transverse support (420) is connected to the side wings (412).

10. The electric lift cabinet according to claim 8, characterized in that: The transverse support (420) has an L-shaped cross section in at least part thereof, and comprises a vertical plate (421) and a horizontal plate (422) connected to each other, wherein the vertical plate (421) is connected to the longitudinal support (410), and the horizontal plate (422) is connected to the side of the lifting cabinet (200), and one or more places on the vertical plate (421) are bent to form a sub-transverse plate (423), and a rope hole (424) is provided on the sub-transverse plate (423) for connecting to the lifting drive mechanism (300).

Images