Screw lifting assembly for household lifting frame

Abstract

The utility model belongs to the field of smart home, and discloses a screw lifting assembly for a household lifting frame. Comprising an upper supporting seat; a lower supporting seat; the screw rod is vertically arranged, and the two ends of the screw rod are rotationally connected with the corresponding upper supporting seat and the lower supporting seat respectively; the sliding block nut is arranged on the periphery of the screw rod in a sliding mode and moves up and down in the length direction of the screw rod; the upper bearing seat is provided with a bearing B, and the upper end of the screw rod is matched with the bearing B; the lower bearing seat is provided with a bearing A, and the lower end of the screw rod is matched with the bearing A. Screw and nut transmission is adopted, the upper end and the lower end of the screw are respectively provided with a base for fixing and supporting, the transmission stability is improved, the problem of winding and knotting is avoided, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of smart homes, and in particular to a screw lifting assembly for a household lifting frame. Background Art

[0002] Smart homes are a growing trend in modern society, and with them have emerged home lifts for use with smart homes. Existing home lifts are used in kitchen wall cabinets, bathroom cabinets, dressing tables, bookcases, sideboards, and other applications. These lifts utilize telescopic steel cables, which are prone to tangling or breaking, making them prone to malfunction. This results in low reliability and a poor user experience. Utility Model Content

[0003] In order to solve the above technical problems, a screw lifting assembly for a household lifting stand is provided, which is not easy to be entangled or broken.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a screw lifting assembly for a household lifting frame, which includes:

[0005] Upper support seat;

[0006] Lower support seat;

[0007] The screw is vertically arranged, and its two ends are rotatably connected to the corresponding upper support seat and lower support seat respectively;

[0008] A slider nut is slidably arranged on the outer periphery of the screw and moves up and down along the length direction of the screw;

[0009] The upper bearing seat has a bearing B, and the upper end of the screw is matched with the bearing B;

[0010] The lower bearing seat has a bearing A, and the lower end of the screw rod cooperates with the bearing A.

[0011] According to the utility model, further, the upper and lower ends of the screw are respectively provided with a bearing B matching the optical axis and a bearing A matching the optical axis which are symmetrical with respect to the threaded portion, the outer periphery of the bearing B matching the optical axis is matched with the bearing B, and the outer periphery of the bearing A matching the optical axis is matched with the bearing A; the top of the bearing B matching the optical axis has a power input connection section connected to the drive structure.

[0012] According to the utility model, further, the upper bearing seat has a mounting hole for installing the bearing B, and the bearing B is arranged in the mounting hole; the mounting hole is a through hole with a limiting step, and the diameter of the through hole at the limiting step is larger than the inner hole of the bearing B and smaller than the outer diameter of the bearing B; the upper bearing seat is also integrally provided with no less than two fixing holes for fixing to the upper support seat, for fixing to the upper support seat; the upper bearing seat also has a reduction motor assembly fixing hole for fixing the reduction motor assembly.

[0013] According to the utility model, further, the upper support seat has a screw through hole and an upper bearing seat fixing hole that matches the position and size of the fixing hole. The upper end of the screw passes through the screw through hole and is assembled integrally with the bearing B of the upper bearing seat.

[0014] According to the utility model, further, the outer periphery of the screw is provided with a screw dust cover A and a screw dust cover B which together form a dust-proof space; the dust cover A and the dust cover B leave a gap on the left and right sides of the dust-proof space formed by the screw, and the slider nut passes through the gap and is fixedly connected to the lifting part that performs lifting motion and slides up and down along the gap.

[0015] According to the present invention, further, the screw dust cover A is fixedly connected to the upper support seat through the upper fixing hole of the dust cover A, and is fixedly connected to the lower support seat through the lower fixing hole of the dust cover A.

[0016] According to the utility model, further, vertically arranged through holes are formed on both sides of the screw dust cover B, and the through holes of the dust cover B are fixedly connected to the upper support seat and the lower support seat on the corresponding side through fixing components.

[0017] According to the present invention, further, a dust cover B mounting hole corresponding to the through hole is opened at the bottom of the lower support seat.

[0018] According to the present invention, further, it also includes an electrical protection box assembly, which is equipped with a reduction motor assembly; the reduction motor assembly includes a motor fixedly installed in the electrical protection box assembly, the output shaft of the motor is connected to a gear transmission structure, and the power input connection section is connected to the gear transmission structure.

[0019] According to the present invention, further, the motor is fixed in the electrical protection box assembly through a motor fixing seat, and the motor fixing seat and the motor reduction box cover arranged thereon are coaxially matched with a bearing C to form an inner cavity of the reduction box;

[0020] A worm gear is provided in the inner cavity of the reduction box, and the connecting shafts at both ends of the worm gear are respectively inserted into the inner holes of the bearing C; the output shaft of the motor is integrally provided with a worm shaft that cooperates with the worm gear transmission; the connecting shaft of the worm gear is integrally provided with a through inner hole; the power input connection section at the upper end of the screw passes through the motor reduction box cover and the through inner hole of the worm gear from bottom to top, and is then transmission-connected to the reduction motor assembly;

[0021] The electrical protection box assembly is fixedly connected above the upper support seat, the upper bearing seat is placed in the electrical protection box assembly, and the reduction motor assembly is fixedly connected to the upper bearing seat.

[0022] Compared with the existing technology, the beneficial effects of the present invention are: the present invention adopts screw and nut transmission, base fixed supports are respectively provided at the upper and lower ends of the screw, and a dust cover is also provided along the outer periphery of the screw, which has a simpler structure, better stability, lower failure rate and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a screw lifting assembly for a household lifting stand of the present invention;

[0024] Figure 2 This is a schematic diagram of the screw lifting assembly and the reduction motor installation structure of the utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure;

[0026] Figure 4 This is a schematic diagram of the screw installation structure of the utility model;

[0027] Figure 5 This is an exploded schematic diagram of the screw lifting assembly of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the screw rod of the present invention;

[0029] Figure 7 This is a structural diagram of the upper support seat of the utility model;

[0030] Figure 8 This is a structural diagram of the upper bearing seat of the present utility model;

[0031] Figure 9 This is a schematic diagram of the installation of the utility model and the household lifting frame.

[0032] In the figure, 1-reduction motor assembly, 2-upper bearing seat, 3-upper support seat, 4-slider nut, 5-screw dust cover A, 6-screw dust cover B, 7-lower support seat, 8-screw, 9-bearing A, 10-through hole, 11-threaded hole, 12-bearing B, 21-reduction motor assembly fixing hole, 22-fixing hole, 51-dust cover A upper fixing hole, 52-dust cover A lower fixing hole, 110-motor, 111-motor fixing seat, 1 12-Bearing C, 113-Worm gear, 114-Motor reduction box cover, 115-Screw through hole, 116-Upper bearing seat fixing hole, 117-Bearing A mounting hole, 118-Dust cover B mounting hole, 119-Bearing B matching optical axis, 120-Bearing A matching optical axis, 121-Electrical protection box assembly, 122-Fixed plate, 123-Upper hanging plate, 124-Slide rail, 125-Lower support seat fixing hole, 126-Power input connection section. DETAILED DESCRIPTION

[0033] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0034] like Figure 1-9 As shown, a screw lifting assembly for a household lifting frame includes a first frame fixedly connected to a wall or a fixed plane, the first frame being slidably connected to a second frame, and the screw lifting assembly drives the second frame to perform up and down lifting movements relative to the first frame; in actual use, storage baskets, dressing cabinets and other items that need to be lifted are fixed on the second frame, and the second frame descends to facilitate the retrieval and placement of items placed in the storage baskets and dressing cabinets; when not in use, the second frame rises with the items fixedly connected to it, reducing the space occupied below. Preferably, the first frame includes a fixed plate 122 arranged in parallel, and both ends of the fixed plate 122 are fixedly connected with a vertically arranged slide rail 124; wherein, the fixed plate 122 can be strip-shaped or a whole panel; if it is a whole panel, only one piece can be selected. Compared with the strip-shaped fixed plate, the contact area between the whole panel and the fixed surface is larger, and the connection stability is stronger than the strip-shaped fixed plate 122; the second frame includes a hanging plate 123 arranged in parallel, and both ends of the hanging plate 123 are fixedly connected with another vertically arranged slide rail 124. The two slide rails 124 of the first frame and the second frame cooperate in sliding connection to realize the up and down movement of the second frame relative to the first frame.

[0035] Specifically, the screw lifting assembly includes a vertically arranged screw 8, and the upper and lower ends of the screw 8 are rotatably connected to the corresponding fixed plates 122 respectively, which not only limits the positions of the two ends of the screw 8, but also does not affect the power supply drive structure to drive the screw 8 to rotate; the outer periphery of the screw 8 is provided with a slider nut 4 that can move in the vertical direction, and the slider nut 4 has a threaded hole 11 that matches the screw 8, and the slider nut 4 is fixedly connected to the hanging plate 123; the screw 8 rotates, driving the slider nut 4 to move up and down along the length direction of the screw 8, and the hanging plate 123 fixedly connected to the slider nut 4 also follows it up and down, realizing the up and down sliding of the second frame relative to the first frame.

[0036] In order to improve the stability and smooth rotation of the screw 8, the upper end of the screw 8 is connected to the upper support seat 3, and the outer periphery of the screw 8 is provided with an upper bearing seat 2 with a bearing B12. The upper bearing seat 2 is located above the upper support seat 3. The lower end of the screw 8 is connected to the lower support seat 7 having a bearing A mounting hole 117. The bearing A mounting hole 117 is equipped with a bearing A9 coaxial with the bearing B12. The assembly point of the screw 8 and the bearing A9 is the bearing A matching optical axis 120. Among them, the screw 8 is coaxial with the inner holes of the bearing A9 and the bearing B12. The upper support seat 3 is fixedly connected to the fixing plate 122 located above. The fixing piece passes through the lower support seat fixing hole 125 of the lower support seat 7 and is fixedly connected to the fixing plate 122 located below, which limits the position of the lower support seat 7. The screw 8 can rotate along the axis of the screw 8 relative to the upper support seat 3 and the lower support seat 7. During the up and down lifting process, the screw moves stably without shaking.

[0037] The upper bearing seat 2 has a mounting hole for mounting the bearing B12, and the bearing B12 is fitted in the mounting hole. Preferably, the mounting hole is a through hole with a limiting step, and the diameter of the through hole at the limiting step is larger than the inner hole of the bearing B12 and smaller than the outer diameter of the bearing B12. The upper bearing seat 2 is also integrally provided with fixing holes 22 for fixing to the upper support seat 3. There are at least two fixing holes 22. The upper bearing seat 2 also has a reduction motor assembly fixing hole 21 for fixing the reduction motor assembly 1 described below.

[0038] The upper support seat 3 has a screw through hole 115 and an upper bearing seat fixing hole 116 that matches the position and size of the fixing hole 22. The upper end of the screw 8 passes through the screw through hole 115 and is assembled integrally with the bearing B12 of the upper bearing seat; wherein, the assembly section of the screw 8 and the bearing B12 is the bearing B matching optical axis 119, and the top of the bearing B matching optical axis 119 is a power input connection section 126 connected to the drive structure.

[0039] In order to prevent the screw 8 from being contaminated by stains due to long-term use and affecting its life, a screw dust cover A5 and a screw dust cover B6 are provided on the outer periphery of the screw 8 to form a dust-proof space together; the dust cover A5 and the dust cover B6 leave a gap on the left and right sides of the dust-proof space formed by the screw 8, and the slider nut 4 passes through the gap and is fixedly connected to the hanging plate 123 and slides up and down along the gap.

[0040] Specifically, screw dust cover A5 is fixedly connected to the upper support base 3 through the upper fixing hole 51 of dust cover A, and is fixedly connected to the lower support base 7 through the lower fixing hole 52 of dust cover A. A fixing component secures the upper fixing hole 51 of dust cover A to the upper support base 3, and a fixing component secures the lower fixing hole 52 of dust cover A to the lower support base 7. The fixing component is preferably a set screw. Screw dust cover B6 has vertical through-holes 10 formed on both sides. The through-holes 10 of dust cover B6 are fixedly connected to the upper support base 3 and lower support base 7 on the corresponding sides through fixing components. Preferably, the bottom of the lower support base 7 is provided with dust cover B mounting holes 118 corresponding to the through-holes 10.

[0041] In the embodiment of the present application, an electrical protection box assembly 121 is also included, and the reduction motor assembly 1 is arranged inside the electrical protection box assembly 121; wherein, the reduction motor assembly 1 includes a motor 110, which is fixed in the electrical protection box assembly 121 by a motor fixing seat 111. The motor fixing seat 111 and the motor reduction box cover 114 are coaxially provided with a bearing C112, forming a reduction box inner cavity; a worm gear 113 is provided in the reduction box inner cavity, and the connecting shafts at both ends of the worm gear 113 are respectively inserted into the inner holes of the bearing C112, which can rotate freely in the reduction box inner cavity; the output shaft of the motor 110 is integrally provided with a worm shaft that cooperates with the worm gear transmission; the connecting shaft of the worm gear 113 is integrally provided with a through inner hole. The power input connection section 126 at the upper end of the screw 8 passes through the motor reduction box cover 144 and the through inner hole of the worm gear from bottom to top, and is then transmission-connected to the reduction motor assembly 1.

[0042] The electrical protection box assembly 121 is fixedly connected above the upper support seat 3, and the upper bearing seat 2 is placed in the electrical protection box assembly 121. The reduction motor assembly 1 is fixedly connected to the upper bearing seat 2 through the reduction motor assembly fixing hole 21 of the upper bearing seat.

[0043] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw lifting assembly for a household lifting stand, wherein: include, Upper support seat; Lower support seat; The screw is vertically arranged, and its two ends are rotatably connected to the corresponding upper support seat and lower support seat respectively; A slider nut is slidably arranged on the outer periphery of the screw and moves up and down along the length direction of the screw; The upper bearing seat has a bearing B, and the upper end of the screw is matched with the bearing B; The lower bearing seat has a bearing A, and the lower end of the screw rod cooperates with the bearing A.

2. The screw lifting assembly for a household lifting stand according to claim 1, wherein: The upper and lower ends of the screw are respectively provided with bearings B and bearings A that are symmetrical about the threaded part to match the optical axis. The outer periphery of the bearing B and the outer periphery of the bearing A match the optical axis. The top of the bearing B and the optical axis has a power input connection section connected to the drive structure.

3. The screw lifting assembly for a household lifting stand according to claim 1, wherein: The upper bearing seat has a mounting hole for mounting the bearing B, and the bearing B is fitted in the mounting hole; the mounting hole is a through hole with a limiting step, and the diameter of the through hole at the limiting step is larger than the inner hole of the bearing B and smaller than the outer diameter of the bearing B; the upper bearing seat is also integrally provided with no less than two fixing holes for fixing to the upper support seat, for fixing to the upper support seat; the upper bearing seat also has a reduction motor assembly fixing hole for fixing the reduction motor assembly.

4. The screw lifting assembly for a household lifting stand according to claim 3, wherein: The upper support seat has a screw through hole and an upper bearing seat fixing hole that matches the position and size of the fixing hole. The upper end of the screw passes through the screw through hole and is assembled integrally with the bearing B of the upper bearing seat.

5. The screw lifting assembly for a household lifting stand according to claim 1, wherein: The outer periphery of the screw is provided with a screw dust cover A and a screw dust cover B which together form a dust-proof space; the dust cover A and the dust cover B leave a gap on the left and right sides of the dust-proof space formed by the screw, and the slider nut passes through the gap and is fixedly connected to the lifting part that performs lifting motion and slides up and down along the gap.

6. The screw lifting assembly for a household lifting stand according to claim 5, wherein: The screw dust cover A is fixedly connected to the upper support seat through the upper fixing hole of the dust cover A, and is fixedly connected to the lower support seat through the lower fixing hole of the dust cover A.

7. The screw lifting assembly for a household lifting frame according to claim 5 or 6, wherein: Vertically arranged through holes are formed on both sides of the screw dust cover B, and the through holes of the dust cover B are fixedly connected to the upper support seat and the lower support seat on the corresponding side through fixing components.

8. The screw lifting assembly for a household lifting stand according to claim 7, wherein: The bottom of the lower support seat is provided with a dust cover B mounting hole corresponding to the through hole.

9. The screw lifting assembly for a household lifting stand according to claim 2, wherein: It also includes an electrical protection box assembly, which has a reduction motor assembly arranged inside; the reduction motor assembly includes a motor fixedly installed in the electrical protection box assembly, the output shaft of the motor is connected to a gear transmission structure, and the power input connection section is connected to the gear transmission structure.

10. The screw lifting assembly for a household lifting stand according to claim 9, wherein: The motor is fixed in the electrical protection box assembly through a motor fixing seat, and the motor fixing seat and the motor reduction box cover arranged thereon are respectively provided with a bearing C coaxially to form an inner cavity of the reduction box; A worm gear is provided in the inner cavity of the reduction box, and the connecting shafts at both ends of the worm gear are respectively inserted into the inner holes of the bearing C; the output shaft of the motor is integrally provided with a worm shaft that cooperates with the worm gear transmission; the connecting shaft of the worm gear is integrally provided with a through inner hole; the power input connection section at the upper end of the screw passes through the motor reduction box cover and the through inner hole of the worm gear from bottom to top, and is then transmission-connected to the reduction motor assembly; The electrical protection box assembly is fixedly connected above the upper support seat, the upper bearing seat is placed in the electrical protection box assembly, and the reduction motor assembly is fixedly connected to the upper bearing seat.

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