A ceiling lift

Abstract

The present invention provides a ceiling lift, including an electric push rod, a lifting column, a sliding sleeve, a slider, a staircase, a traction head, a traction member, a wedge and an inner sleeve; the electric push rod is fixedly installed on the roof of the second floor; the sliding sleeve is fixedly installed on the roof of the first floor and is directly opposite to the electric push rod; the lifting column is fixedly connected to the electric push rod and is slidably connected in the sliding sleeve; the outer surface of the lifting column is provided with a plurality of sliding tracks arranged around the circumference, and the slider is slidably connected to the sliding track; the staircase is fixedly connected to the slider; the bottom end of the traction member is fixedly connected to the slider, and the top end of the traction member is connected to the traction head, the length of the traction member is arranged in a stepped manner, and the difference between adjacent traction members is a step height; the wedge is installed inside the lifting column, and the inner sleeve is slidably sleeved inside the lifting column and is transmission-connected to each wedge. The present invention can be folded up when not in use to become a suspended ceiling on the first floor, and can be put down to become a staircase when needed.

Description

Technical Field

[0001] The invention relates to the field of decorative building materials, and in particular to a ceiling lift. Background Art

[0002] There are various types of housing or office units on the market. Among them, duplex small units have the advantages of small area and two floors.

[0003] Duplex buildings have stairs between the two floors, which will definitely occupy a certain amount of space, reducing the utility rate of small apartments with small areas. The existing solution is to set up storage space at the bottom of the stairs to make the most of the staircase space to improve the utility rate. However, the stairs cannot be folded up, and the space above the stairs is always wasted.

[0004] It is not difficult to see that the existing technology still has certain defects. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a suspended ceiling elevator which can be folded up when not in use to become a suspended ceiling of the first floor, and can be lowered to become a staircase when needed.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A ceiling lift, comprising an electric push rod, a lifting column, a sliding sleeve, a slider, a staircase, a traction head, a traction piece, a wedge and an inner sleeve; the electric push rod is fixedly installed on the roof of the second floor; the sliding sleeve is fixedly installed on the roof of the first floor and is directly opposite to the bottom of the electric push rod; the lifting column is fixedly connected to the telescopic end of the electric push rod and is slidably connected in the sliding sleeve along the vertical direction so that it can slide between the first floor and the second floor; the lifting column is in a hollow tubular shape, and a plurality of axially extending sliding tracks with closed bottoms are arranged around the circumference of the outer surface, and the slider is slidably connected to the sliding track The stair plate is fixedly connected to the slider and surrounds the outside of the lifting column; the bottom end of the traction member is fixedly connected to the slider, and the top end of the traction member is connected to a traction head, the length of the traction member is arranged in a stepped manner, and the difference between adjacent traction members is a step height, and the traction head is arranged around the top of the sliding sleeve; through holes are arranged in a stepped manner in the sliding track of the lifting column, the wedge blocks are installed in the interior of the lifting column and are telescopically connected to the through holes respectively, the inner sleeve is slidably sleeved in the interior of the lifting column and is transmission-connected to each wedge block, and the bottom end of the inner sleeve is fixedly provided with a support foot protruding from the bottom end of the lifting column.

[0008] Furthermore, a first spring is provided between the wedge block and the lifting column to make the wedge block elastically contract, and a top extension inclined surface is provided at the tail of the wedge block; the inner sleeve is provided with a driving inclined surface matching the top extension inclined surface for each wedge block, so that the wedge block is driven to extend when the inner sleeve slides upward.

[0009] Furthermore, the stair tread comprises a frame, a decorative panel and pedals; the frame is fixedly connected to the slider; the pedals are fixedly mounted on the frame; and the decorative panel is covered under the frame.

[0010] Furthermore, one side of the stair tread is protruding with a retaining edge, and the other side is recessed with a shielding groove; when the stair tread is laid flat for storage, the retaining edge is embedded in the shielding groove.

[0011] Furthermore, a center decorative panel is fixedly mounted on the bottom of the support leg.

[0012] Furthermore, a second spring is provided between the traction head and the traction member.

[0013] Furthermore, the lifting column includes a main column and an end cover fixedly connected to the bottom end of the main column; the telescopic end of the electric push rod is fixedly connected to the end cover; the surface of the end cover is provided with a hollow, and the support legs of the inner sleeve extend out from the hollow.

[0014] Furthermore, an induction switch is provided between the inner sleeve and the top end of the lifting column.

[0015] Furthermore, a shielding layer is provided outside the sliding track for closed shielding from both sides, and the shielding layer joints are connected by a zipper. The upper and lower ends of the slider are respectively fixed with pull heads in opposite directions, so that the zipper is closed when the slider slides up and down.

[0016] Furthermore, it also includes a base; the base includes a ring and a lifting plate, the ring is fixed to the first floor directly opposite to the lifting column; the lifting plate is slidably sleeved inside the ring, and a third spring is provided at the bottom of the lifting plate to elastically push the lifting plate upward to be flush with the floor.

[0017] The ceiling lift provided by the present invention has the following advantages:

[0018] It can be lowered to become a staircase when needed, and can be folded up to become a suspended ceiling on the first floor when not in use, which plays a decorative role and at the same time covers the gap between the first and second floors, making full use of the space under the stairs;

[0019] The wedge block is responsible for bearing the load, so that the load of the stair slab is transferred to the lifting column and then to the ground. It has strong load-bearing capacity and is safe and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1The present invention is a schematic diagram of the overall structure of a ceiling lift provided by the present invention.

[0022] Figure 2 for Figure 1 Schematic diagram of the folded state.

[0023] Figure 3 Schematic diagram of the internal structure of the lifting column.

[0024] Figure 4 Schematic diagram of the action of the wedge block.

[0025] Figure 5 Schematic diagram of the layered structure of the stair tread.

[0026] Figure 6 Schematic diagram of the splicing structure of stair treads.

[0027] Figure 7 It is a schematic diagram of the structure of the shielding layer and the zipper.

[0028] Figure 8 A schematic diagram of the structure of the base.

[0029] Description of reference numerals:

[0030] 1. Electric push rod 2. Lifting column

[0031] 3. Sliding sleeve 4. Sliding block

[0032] 5. Stair tread 6. Traction head

[0033] 7. Traction piece 8. Wedge block

[0034] 9. Inner sleeve 10. Sliding track

[0035] 11. Legs 12. Center trim

[0036] 13. End cover 14. Induction switch

[0037] 15. Frame 16. Pedal

[0038] 17. Decorative board 18. Shielding layer

[0039] 19. Zipper 20. Base

[0040] 21. Ferrule, 22. Lifting plate

[0041] 23. Sidewall 24. Shielding slot DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention and the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] Embodiment 1

[0044] See also Figures 1 to 4 The embodiment of the present invention provides a ceiling lift, comprising an electric push rod 1, a lifting column 2, a sliding sleeve 3, a slider 4, a stair tread 5, a traction head 6, a traction member 7, a wedge block 8 and an inner sleeve 9; the electric push rod 1 is fixedly installed on the roof of the second floor; the sliding sleeve 3 is fixedly installed on the roof of the first floor and is directly opposite to the bottom of the electric push rod 1; the lifting column 2 is fixedly connected to the telescopic end of the electric push rod 1, and is slidably connected in the sliding sleeve 3 along the vertical direction, so that it can slide between the first floor and the second floor; the lifting column 2 is hollow and tubular, and a plurality of axially extending and bottom-blocked sliding rails 10 are arranged around the circumference of the outer surface thereof, and the slider 4 is slidably connected to the sliding rail The stair tread 5 is fixedly connected to the slider 4 and surrounds the outside of the lifting column 2; the bottom end of the traction member 7 is fixedly connected to the slider 4, and the top end of the traction member 7 is connected to the traction head 6, the length of the traction member 7 is arranged in a step-like manner, and the difference between adjacent traction members 7 is a step height. The traction head 6 is arranged around the top of the sliding sleeve 3; the sliding track 10 of the lifting column 2 is provided with through holes arranged in a step-like manner, the wedge blocks 8 are installed in the interior of the lifting column 2 and are respectively telescopically connected to the through holes, the inner sleeve 9 and the sliding sleeve 3 are connected to the interior of the lifting column 2 and are transmission-connected to each wedge block 8, and the bottom end of the inner sleeve 9 is fixedly provided with a support foot 11 protruding from the bottom end of the lifting column 2.

[0045] The biggest feature of the present invention is that it can be lowered from the ceiling of the first floor when in use to form a spiral staircase; when not in use, it can be raised and stored to serve as the ceiling of the first floor, while covering the gap in the top floor of the first floor, and also freeing up the space directly under the ceiling. This feature is particularly suitable for the entrance hall and passageways on the first floor where items are not originally piled up. For example, in the entrance hall behind the main door of the first floor, the stairs can be lowered after closing the door to connect the first floor with the second floor, and the stairs can be folded up when you need to go out, so as to maximize the use of the indoor space of a small-sized house or office.

[0046] The working principle of the present invention is:

[0047] See also Figures 1 to 4Normally, the electric push rod 1 is in a retracted state, driving the lifting column 2 to be retracted to the second floor. At this time, the bottom end of each sliding track 10 of the lifting column 2 has a supporting force for each slider 4, driving all sliders 4 to rise to the same horizontal plane on the top of the first floor, so that all the stair treads 5 are also located on the same horizontal plane, and are spliced ​​together to form a suspended ceiling structure, covering the gap of the top floor of the first floor, forming a decorative effect.

[0048] When the staircase needs to be lowered, the electric push rod 1 extends downward, driving the lifting column 2 to extend vertically downward. During this period, since the length of the traction member 7 is arranged in steps, the traction head 6 on the shorter traction member 7 will first hit the sliding sleeve 3 and be blocked by the sliding sleeve 3, and the corresponding slider 4 and stair board 5 will stop sliding down and be fixed at a specific height. Therefore, when the lifting column 2 descends to the lowest position, the stair board 5 surrounding the outer periphery of the lifting column 2 will be arranged in a step-like manner at a specific height position. As the lifting column 2 reaches a layer of the ground, the support leg 11 will be supported on a layer of the ground, and the inner sleeve 9 will be pushed up, driving the wedge block 8 to extend, and the wedge block 8 is supported under the corresponding slider 4, so that the load of the stair board 5 is finally transferred to the ground through the lifting column 2.

[0049] According to the above working principle, the stairs can be raised and lowered. After the stairs are lowered, the mechanical structure is reasonable, sufficient to bear the weight of multiple people walking on the stairs, and it is safe and stable. In the process of descending, the slider 4 is allowed to slide upward, so even if someone enters the area directly below the stairs by mistake, there will be no crushing accident. The specific form of the traction member 7 can be a rigid long rod, or a tough belt, steel cable, etc., which is mainly used to pull and drive the slider 4 to slide to a specific height, and does not bear the weight of the human body when stepping on the stair tread 5. The specific setting can be as needed.

[0050] See Figure 3 and Figure 4 Specifically, as a preferred embodiment, a first spring (not shown) is provided between the wedge block 8 and the lifting column 2 to make the wedge block 8 elastically contract, and a top extension inclined surface is provided at the tail of the wedge block 8; the inner sleeve 9 is provided with a driving inclined surface matching the top extension inclined surface for each wedge block 8, so that the inner sleeve 9 drives the wedge block 8 to extend when it slides upward.

[0051] When the lifting column 2 is extended to the ground, the inner sleeve 9 slides upward a short distance relative to the lifting column 2, and the driving inclined surface will act on the extending inclined surface to push the wedge block 8 out. Since the horizontal component of the upward sliding force of the inner sleeve 9 is very large, the wedge block 8 will not retract inward unless the material is damaged.

[0052] See Figure 5As a preferred embodiment, the stair tread 5 includes a frame 15, a decorative panel 17 and a pedal 16; the frame 15 is fixedly connected to the slider 4; the pedal 16 is fixedly installed on the frame 15; and the decorative panel 17 is covered under the frame 15. The decorative panel 17 at the bottom has the same decorative function as an ordinary ceiling, so that when people look up and see the decorative panel 17 after the staircase is folded, it is similar to seeing a suspended ceiling. The frame 15 is the main load-bearing structure, responsible for bearing the weight of the human body when stepping on the pedal 16. The pedal 16 is only used to make the surface of the stair tread 5 flat and suitable for stepping.

[0053] See also Figure 6 Furthermore, one side of the stair tread 5 is protruding with a retaining edge 23, and the other side is recessed with a shielding groove 24; when the stair tread 5 is laid flat for storage, the retaining edge 23 is embedded in the shielding groove 24. This is mainly because when the stair tread 5 is folded, it needs to be spliced ​​to form the appearance of the suspended ceiling. In order to avoid the problem of the decorative board 17 being deformed due to tolerance or after use, which causes the stair tread 5 to be unable to be spliced ​​normally, the above design can be adopted.

[0054] In order to improve the appearance of the bottom of the lifting column 2 , preferably, a central decorative plate 12 is fixedly mounted on the bottom of the supporting foot 11 .

[0055] Since the positioning of the wedge block 8 and the positioning of the slider 4 are prone to slight errors, a second spring (not shown) is preferably provided between the traction head 6 and the traction member 7. Thus, when a person steps on the stair tread 5, the stair tread 5 is allowed to elastically slide downward for a short distance to ensure that it can be supported on the wedge block 8.

[0056] Specifically, as a preferred embodiment, the lifting column 2 includes a main column and an end cover 13 fixedly connected to the bottom end of the main column; the telescopic end of the electric push rod 1 is fixedly connected to the end cover 13; the surface of the end cover 13 is provided with a hollow, and the legs 11 of the inner sleeve 9 extend out from the hollow. During installation, the end cover 13 can be disassembled to install the inner sleeve 9 and the wedge block 8 into the lifting column 2.

[0057] See Figure 3 Preferably, an induction switch 14 is provided between the inner sleeve 9 and the top of the lifting column 2. The induction switch 14 has two functions: when the lifting column 2 extends downward to the bottom surface of a layer, the inner sleeve 9 is pushed upward to trigger the induction switch 14, thereby generating a control signal to stop the electric push rod 1; or when the lifting column 2 presses on a person, the inner sleeve 9 is also touched, thereby triggering the induction switch 14 to stop the electric push rod 1.

[0058] See Figure 7As a preferred embodiment, a shielding layer 18 is provided outside the sliding track 10, which is closed and shielded from both sides. The shielding layer 18 is connected by a zipper 19. The upper and lower ends of the slider 4 are respectively fixed with sliders (not shown) in opposite directions, so that the zipper 19 is closed when the slider 4 slides up and down. The shielding layer 18 closed by the zipper 19 can cover the sliding track 10, which not only makes the lifting column 2 more beautiful as a whole, but also provides a certain protection to prevent people's fingers from entering the sliding track 10 and getting pinched.

[0059] See also Figure 1 , Figure 2 and Figure 8 In order to further improve the stability of the lifting column 2 after it falls, preferably, a base 20 is further provided; the base 20 includes a ring 21 and a lifting plate 22, the ring 21 is fixed to the first floor directly below the lifting column 2; the lifting plate 22 is slidably sleeved inside the ring 21, and a spring is provided at the bottom of the lifting plate 22 to elastically push the lifting plate 22 upward to be flush with the floor.

[0060] When the lifting column 2 is lowered, the center decorative panel 12 is just located on the lifting plate 22, and as the lifting plate 22 elastically contracts downward, the bottom end of the lifting column 2 is embedded in the ring 21 and firmly locked. After the lifting column 2 is retracted upward, it automatically separates from the ring 21. At the same time, the lifting plate 22 will elastically stretch to restore its original shape, which will not affect the flatness of the bottom plate.

[0061] The present invention provides a ceiling lift, which can be lowered to become a staircase when needed, and can be folded up to become a suspended ceiling on the first floor when not in use, playing a decorative role. In this way, the space under the staircase can be fully utilized in the folded state, and the space utilization rate inside a small-sized building can be improved. It is particularly suitable for the passages and entrances on the first floor of a small-sized building. The wedge block 8 is responsible for receiving the load, so that the load of the staircase plate 5 is transferred to the lifting column 2 and then to the ground, and the load-bearing capacity is strong, safe and stable.

[0062] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A ceiling lift, characterized in that: It includes an electric push rod, a lifting column, a sliding sleeve, a slider, a stair tread, a traction head, a traction piece, a wedge and an inner sleeve; the electric push rod is fixedly installed on the roof of the second floor; the sliding sleeve is fixedly installed on the roof of the first floor and is directly opposite to the bottom of the electric push rod; the lifting column is fixedly connected to the telescopic end of the electric push rod and is slidably connected in the sliding sleeve along the vertical direction so that it can slide between the first floor and the second floor; the lifting column is in the shape of a hollow tube, and a plurality of axially extending and bottom-blocked sliding tracks are arranged around the circumference of its outer surface, and the slider is slidably connected to the sliding track; the stair tread The traction member is fixedly connected to the slider and surrounds the outside of the lifting column; the bottom end of the traction member is fixedly connected to the slider, and the top end of the traction member is connected to a traction head, the length of the traction member is arranged in a stepped manner, and the length of adjacent traction members differs by a step height, and the traction head is arranged around the top of the sliding sleeve; through holes are arranged in a stepped manner in the sliding track of the lifting column, the wedge blocks are installed in the interior of the lifting column and are telescopically connected to the through holes respectively, the inner sleeve is slidably sleeved in the interior of the lifting column and is transmission-connected to each wedge block, and the bottom end of the inner sleeve is fixedly provided with a support foot protruding from the bottom end of the lifting column.

2. The ceiling lift according to claim 1, characterized in that: A first spring is arranged between the wedge block and the lifting column to make the wedge block elastically contract, and a top extension inclined surface is arranged at the tail of the wedge block; the inner sleeve is provided with a driving inclined surface matching with the top extension inclined surface for each wedge block, so that the wedge block is driven to extend when the inner sleeve slides upward.

3. The ceiling lift according to claim 1 or 2, characterized in that: The stair tread comprises a frame, a decorative plate and a pedal; the frame is fixedly connected to the slider; the pedal is fixedly installed on the frame; and the decorative plate is covered under the frame.

4. The ceiling lift according to claim 3, characterized in that: One side of the stair tread is protruding with a retaining edge, and the other side is recessed with a shielding groove; when the stair tread is flatly laid and stored, the retaining edge is embedded in the shielding groove.

5. The ceiling lift according to claim 1 or 2, characterized in that: A central decorative plate is fixedly mounted on the bottom of the supporting foot.

6. The ceiling lift according to claim 1 or 2, characterized in that: A second spring is arranged between the traction head and the traction member.

7. The ceiling lift according to claim 1 or 2, characterized in that: The lifting column comprises a main column and an end cover fixedly connected to the bottom end of the main column; the telescopic end of the electric push rod is fixedly connected to the end cover; the surface of the end cover is provided with a hollow, and the support legs of the inner sleeve extend out from the hollow.

8. The ceiling lift according to claim 1 or 2, characterized in that: An induction switch is arranged between the inner sleeve and the top end of the lifting column.

9. The ceiling lift according to claim 1 or 2, characterized in that: A shielding layer is provided outside the sliding track for closed shielding from both sides, and the shielding layer joints are connected by a zipper. The upper and lower ends of the slider are respectively fixed with pull heads in opposite directions, so that the zipper is closed when the slider slides up and down.

10. The ceiling lift according to claim 1 or 2, characterized in that: It also includes a base; the base includes a ring and a lifting plate, the ring is fixed to the first floor directly opposite to the lifting column; the lifting plate is slidably sleeved inside the ring, and a third spring is provided at the bottom of the lifting plate to elastically push the lifting plate upward to be flush with the floor.

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