Assembly type stair convenient to adjust

Abstract

The utility model discloses an assembly type staircase convenient to adjust, which relates to the technical field of staircases and comprises a bottom frame, three groups of sliding grooves are arranged on the bottom frame, sliding blocks are slidably connected in the two groups of sliding grooves, first connecting rods are rotatably connected to the tops of the sliding blocks, and screw rods are rotatably connected in the sliding grooves in the middle area of the bottom frame. The side face of the lead screw is in threaded connection with a threaded sleeve, the top of the threaded sleeve is rotationally connected with a second connecting rod, torsion is applied to drive a force application handle, the force application handle indirectly drives the multiple sets of pedals to rotate, the multiple sets of pedals can rotate downwards to form a slope, and a person above can unload part of materials through the slope conveniently. After unloading is completed, the force application handle is controlled to drive the worm to rotate, the pedal can be driven to reset, the guide rod rotates to indirectly drive the bearing sleeve to move outwards, the bearing sleeve is made to be located below the pedal, the pedal can be limited, and the pedal is prevented from rotating downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of stairs, in particular to an assembled staircase which is easy to adjust. Background Art

[0002] Publication (announcement) No. CN117071830A, an assembled staircase, comprising: a base, a supporting mechanism, a ladder frame, a ladder board, a guardrail, an automatic leveling mechanism and a handrail, the base is rotatably connected with the supporting mechanism; the ladder frame is rotatably connected to the base; a plurality of ladder boards are rotatably connected to the ladder frame; two guardrails are rotatably connected to the ladder boards; the automatic leveling mechanism is rotatably connected in the ladder frame; two handrails are movably inserted and placed on the inner wall of the base; and the technical means of the supporting mechanism and the automatic leveling mechanism are adopted.

[0003] Publication (announcement) No. CN209509564U, a tool-type traffic staircase in an assembled building stairwell, including a base plate device, the upper end of which is clamped with a staircase, the base plate device is clamped with a support rod device, the base plate device includes a base plate, a groove, a round rod, a torsion spring, a bayonet, a guide seat, a guide rod, a limit ring and a slide groove, the base plate is provided with a groove, a round rod is movably sleeved in the base plate, a torsion spring is sleeved on the outer side of the round rod, and the left end of the torsion spring is fixedly connected to the base plate.

[0004] The steps on the assembled stairs in the above-mentioned prior art are all fixedly installed. The stairs are installed in a practical environment. When decorating the building or moving, objects need to be moved down. The stairs are concave and convex, which is not conducive to the transportation of some materials sliding down from top to bottom, and manual transportation is still required. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an easily adjustable assembled staircase.

[0006] The utility model is realized by constructing an assembled staircase which is easy to adjust. The device comprises:

[0007] The utility model has the following advantages: the utility model provides an easily adjustable assembled staircase through improvement, and compared with the same type of equipment, it has the following improvements: it comprises a bottom frame, three groups of slide grooves are arranged on the bottom frame, and sliding blocks are slidably connected in two groups of slide grooves, a first connecting rod is rotatably connected to the top of the sliding block, a screw rod is rotatably connected in the slide groove in the middle area of ​​the bottom frame, a threaded sleeve is threadedly connected to the side of the screw rod, a second connecting rod is rotatably connected to the top of the threaded sleeve, a handle is rotatably connected to the front end of the bottom frame, the handle is fixedly connected to the screw rod, a frame body is rotatably connected to the side of the bottom frame, and the surface of the frame body is rotatably connected to the two groups of first connecting rods and second connecting rods;

[0008] The left and right ends of the frame are provided with side panels, and pedals are rotatably connected to the side panels;

[0009] An adjustment mechanism is provided in the side panel, and the adjustment mechanism includes a force application handle;

[0010] The force applying handle is rotatably connected to the side plate, and a first bevel gear group is rotatably connected inside the side plate, and the bevel gear of the first bevel gear group is fixedly connected to the force applying handle, and the center of another group of bevel gears is fixedly connected to the guide rod, and the guide rod is fixedly connected to one end of the worm, and the worm is meshed with the worm wheel, and the center of the worm wheel is fixedly connected to the receiving shaft, and the receiving shaft passes through the surface of the side plate and is fixedly connected to the pedal to drive the pedal to be rotatably connected to the side plate.

[0011] Preferably, the guide rod is fixedly connected to the bevel gear center of the second bevel gear.

[0012] Preferably, the center of another group of bevel gears of the second bevel gear is fixedly connected to the auxiliary screw.

[0013] Preferably, the auxiliary screw is rotatably connected to the side plate, and a receiving sleeve is threadedly connected to the side surface of the auxiliary screw.

[0014] Preferably, a slide plate is fixedly connected to the surface of the receiving sleeve, and the slide plate is slidably connected to the side of the guide rod, and the guide rod is fixedly connected to the inside of the side plate.

[0015] Preferably, one end of the receiving sleeve passes through the side of the side plate and extends to the bottom of the pedal to limit the pedal.

[0016] The utility model discloses an easily adjustable assembled staircase, in which a torque is applied to drive a force applying handle, and the force applying handle indirectly drives a plurality of sets of pedals to rotate, so that the plurality of sets of pedals can be rotated downward to form a slope, so that personnel above can unload part of the materials through the slope; when the unloading is completed, the force applying handle is controlled to drive the worm to rotate, so that the pedals can be driven to reset, and the guide rod rotates to indirectly drive the receiving sleeve to move outward, so that the receiving sleeve is located below the pedal, and can limit the pedal to prevent the pedal from rotating downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection relationship structure of the threaded sleeve of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the regulating mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the auxiliary screw connection relationship of the utility model.

[0021] Among them: bottom frame-1, slide groove-2, sliding block-3, first connecting rod-4, screw rod-5, threaded sleeve-6, second connecting rod-7, handle-8, frame-9, side plate-10, pedal-11, adjustment mechanism-12, force handle 121, first bevel gear set-122, guide rod-123, worm-124, worm wheel-125, connecting shaft-126, second bevel gear-127, auxiliary screw-128, connecting sleeve-129, slide plate-1210, guide rod-1211. DETAILED DESCRIPTION

[0022] The following is combined with Figures 1 to 4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figure 1 to Figure 4 The utility model is an easily adjustable assembled staircase, comprising a bottom frame 1, three groups of slide grooves 2 are provided on the bottom frame 1, and sliding blocks 3 are slidably connected in two groups of slide grooves 2, and the top of the sliding block 3 is rotatably connected to the first connecting rod 4, and a screw rod 5 is rotatably connected in the slide groove 2 in the middle area of ​​the bottom frame 1, and a threaded sleeve 6 is threadedly connected to the side of the screw rod 5, and the top of the threaded sleeve 6 is rotatably connected to the second connecting rod 7, the front end of the bottom frame 1 is rotatably connected to a handle 8, the handle 8 is fixedly connected to the screw rod 5, and the side of the bottom frame 1 is rotatably connected to a frame body 9, and the surface of the frame body 9 is rotatably connected to the two groups of first connecting rods 4 and second connecting rods 7.

[0026] The frame 9 is provided with side panels 10 at both ends thereof, and pedals 11 are rotatably connected to the side panels 10 to adjust the angle of the pedals 11 .

[0027] An adjusting mechanism 12 is disposed inside the side plate 10 , and the adjusting mechanism 12 includes a force applying handle 121 .

[0028] The force applying handle 121 is rotatably connected to the side plate 10, and a first bevel gear set 122 is rotatably connected inside the side plate 10, and the bevel gear of the first bevel gear set 122 is fixedly connected to the force applying handle 121, and a torque can be applied to drive the force applying handle 121 to rotate, thereby driving the guide rod 123 to rotate, and another set of bevel gears is fixedly connected to the guide rod 123 at the center, and the guide rod 123 is fixedly connected to one end of the worm 124, and the worm 124 is meshed with the worm wheel 125, and the center of the worm wheel 125 is fixedly connected to the receiving shaft 126, and the receiving shaft 126 passes through the surface of the side plate 10 and is fixedly connected to the pedal 11, thereby driving the pedal 11 to be rotatably connected to the side plate 10.

[0029] The guide rod 123 is fixedly connected to the bevel gear center of the second bevel gear 127, and the other group of bevel gears of the second bevel gear 127 is fixedly connected to the auxiliary screw 128 at the center. The auxiliary screw 128 is rotatably connected to the side of the side plate 10. The side of the auxiliary screw 128 is threadedly connected with a socket sleeve 129. The surface of the socket sleeve 129 is fixedly connected with a slide plate 1210, and the slide plate 1210 is slidably connected to the side of the guide rod 1211. The guide rod 1211 is fixedly connected to the side plate 10. One end of the socket sleeve 129 passes through the side of the side plate 10 and extends to the bottom of the pedal 11 to limit the pedal 11.

[0030] The side bolts of the side plate 10 are provided with ladders (not shown in the figure), and the guide rod 123 is rotatably connected with the inside of the side plate 10 .

[0031] The number of worm 124, worm wheel 125, receiving shaft 126, second bevel gear 127, auxiliary screw 128, receiving sleeve 129, slide plate 1210 and guide rod 1211 is connected to the pedal 11, and multiple groups of worm 124 are connected together by guide rod 123, so that multiple groups of pedals 11 can be adjusted simultaneously by force handle 121.

[0032] The working principle of an easily adjustable assembled staircase is:

[0033] When using a prefabricated staircase, first move the prefabricated staircase and place it in the work area;

[0034] First, apply torque to drive the handle 8 to drive the screw rod 5 to rotate, the screw rod 5 drives the threaded sleeve 6 to move, and the threaded sleeve 6 can drive the second connecting rod 7 to move, and while the second connecting rod 7 moves, a thrust can be applied to drive the frame 9 to rotate and lift, and while the frame 9 rotates, it can also drive the sliding blocks 3 and the first connecting rod 4 at both ends to move;

[0035] When the frame 9 is lifted to a suitable height, it can stop;

[0036] When unloading is required, torque can be applied to drive the force application handle 121, and the force application handle 121 drives the first bevel gear set 122 to rotate, and the first bevel gear set 122 drives the guide rod 123 to rotate, and the guide rod 123 drives the worm wheel 125 to rotate through the worm 124, and the worm wheel 125 drives the receiving shaft 126 to rotate, and the receiving shaft 126 can drive the pedal 11 to rotate, so that the multiple sets of pedals 11 can be rotated downward to form a slope, so that the personnel above can unload part of the materials through the slope;

[0037] At the same time, when the guide rod 123 rotates, power is applied to drive the second bevel gear 127 to rotate, the second bevel gear 127 drives the auxiliary screw 128 to rotate, and the auxiliary screw 128 drives the receiving sleeve 129 to move toward the end of the second bevel gear 127 to prevent the receiving sleeve 129 from hindering the rotation of the pedal 11;

[0038] When unloading is completed, the force applying handle 121 is controlled to drive the worm 124 to rotate, which can drive the pedal 11 to reset. The guide rod 123 rotates to indirectly drive the receiving sleeve 129 to move outward, and the receiving sleeve 129 is located below the pedal 11, and can limit the pedal 11 to prevent the pedal 11 from rotating downward.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An easily adjustable assembled staircase, comprising a bottom frame, three sets of slide grooves are arranged on the bottom frame, and two sets of slide grooves are slidably connected with sliding blocks, the top of the sliding block is rotatably connected with a first connecting rod, a screw rod is rotatably connected in the slide groove in the middle area of ​​the bottom frame, a threaded sleeve is threadedly connected to the side of the screw rod, the top of the threaded sleeve is rotatably connected to the second connecting rod, a handle is rotatably connected to the front end of the bottom frame, the handle is fixedly connected to the screw rod, a frame is rotatably connected to the side of the bottom frame, and the surface of the frame is rotatably connected to the two sets of first connecting rods and the second connecting rods; Features ; Side panels are provided at the left and right ends of the frame, and pedals are rotatably connected to the side panels; An adjustment mechanism is provided in the side panel, and the adjustment mechanism includes a force application handle; The force applying handle is rotatably connected to the side plate, and a first bevel gear group is rotatably connected inside the side plate, and the bevel gear of the first bevel gear group is fixedly connected to the force applying handle, and the center of another group of bevel gears is fixedly connected to the guide rod, and the guide rod is fixedly connected to one end of the worm, and the worm is meshed with the worm wheel, and the center of the worm wheel is fixedly connected to the receiving shaft, and the receiving shaft passes through the surface of the side plate and is fixedly connected to the pedal to drive the pedal to be rotatably connected to the side plate.

2. The easily adjustable assembled staircase according to claim 1, characterized in that: The guide rod is fixedly connected to the bevel gear center of the second bevel gear.

3. The easily adjustable assembled staircase according to claim 2, characterized in that: The center of another group of bevel gears of the second bevel gear is fixedly connected to the auxiliary screw.

4. The easily adjustable assembled staircase according to claim 3, characterized in that: The auxiliary screw is rotatably connected with the side plate, and a receiving sleeve is threadedly connected to the side surface of the auxiliary screw.

5. The easily adjustable assembled staircase according to claim 4, characterized in that: A slide plate is fixedly connected to the surface of the receiving sleeve, and the slide plate is slidably connected to the side surface of the guide rod, and the guide rod is fixedly connected to the inside of the side plate.

6. The easily adjustable assembled staircase according to claim 5, characterized in that: One end of the receiving sleeve passes through the side surface of the side plate and extends to the bottom of the pedal to limit the pedal.

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