Leg and wheel combined type stair climbing machine

Abstract

The utility model relates to the field of stair climbing machines, in particular to a leg and wheel combined type stair climbing machine, and provides the following scheme aiming at the defects that in the prior art, placed articles cannot be fixed, the articles are prone to sliding off and being damaged, and the placing area cannot be increased: the leg and wheel combined type stair climbing machine comprises a base; the supporting plate is fixedly connected to the top of the base, and a handle is fixedly connected to the top of the supporting plate; the two protective fences are fixedly connected to the top of the base, and four supporting rods are fixedly connected to one side of the supporting plate; the two transmission shafts are rotationally connected to the inner walls of the four supporting rods correspondingly, and transmission rollers are fixedly connected to the two transmission shafts correspondingly; the crawler belt is in transmission connection with the two transmission rollers, and one side of a supporting rod is fixedly connected with a first motor; according to the device, placed articles can be fixed, so that the articles are not prone to slipping off, and the placing area can be increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stair climbing machines, in particular to a leg-wheel combined stair climbing machine. BACKGROUND

[0002] The stair climbing machine is a new type of object (person) climbing tool, which uses the action execution mechanism equipped to realize the up and down stairs action, and then completes the purpose of up and down stairs. It is widely used in logistics, water delivery, moving, furniture and home appliance industries, as well as factories, offices, residential buildings and outdoor steps.

[0003] The patent document with publication number CN113353531B discloses a leg-wheel combined stair climbing machine, which includes a support plate arranged on the base in a manner capable of sliding along a predetermined direction, and a support wheel arranged at the bottom of the support plate to contact the ground. A driving assembly is arranged on the base and is drivingly connected to the support plate to drive the support plate to slide along the predetermined direction relative to the base. A control assembly is electrically connected to the leg assembly and the driving assembly. The support wheel is arranged on the support plate in a manner capable of rotating in one direction. The leg assembly lifts the support plate, and then the driving assembly pushes the support plate into a higher step. Finally, after the leg assembly is retracted, the driving assembly reverses the base to move closer to the support plate, thereby moving the leg-wheel combined stair climbing machine as a whole to the higher step.

[0004] However, the above-mentioned leg-wheel combined stair climbing machine cannot fix the placed objects, which leads to the objects being easily damaged by falling, and cannot increase the placement area. Therefore, we propose a leg-wheel combined stair climbing machine to solve the above problems. Content of the utility model

[0005] The utility model aims at solving the problems in the prior art that the placed objects cannot be fixed, which leads to the objects being easily damaged by falling, and the placement area cannot be increased, and proposes a leg-wheel combined stair climbing machine.

[0006] The leg-wheel combined stair climbing machine provided by the present application adopts the following technical scheme:

[0007] A leg-wheel combined stair climbing machine comprises:

[0008] a base;

[0009] a support plate fixedly connected to the top of the base, and a handle fixedly connected to the top of the support plate;

[0010] two guardrails, each fixedly connected to the top of the base, and four support rods fixedly connected to one side of the support plate;

[0011] two transmission shafts rotatably connected to the inner walls of the four support rods, and transmission rollers fixedly connected to the two transmission shafts.

[0012] The track is in transmission connection with the two transmission rollers, and one side of the support rod is fixedly connected with a first motor;

[0013] The bottom of the base is fixedly connected with a box, and one side of the box is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a bidirectional threaded rod, two threaded sleeves are threadedly connected on the bidirectional threaded rod, one end of the bidirectional threaded rod is rotatably connected with the inner wall of one side of the box, and the top of each threaded sleeve is fixedly connected with a clamping plate.

[0014] The transmission assembly is fixedly connected to one side of the support plate.

[0015] Further, the transmission assembly includes a push rod motor fixedly connected to one side of the support plate, and the output shaft of the first motor is fixedly connected with the transmission shaft, the output shaft of the push rod motor is fixedly connected with a sliding plate, and the sliding plate is slidably connected with one side of the support plate.

[0016] Further, the bottom of each clamping plate is slidably connected with the top of the base, and a gear is fixedly connected to the bidirectional threaded rod.

[0017] Further, the gear is meshed with a rack, the top of the rack is slidably connected with the top of the box, and one end of the rack is fixedly connected with a connecting plate.

[0018] Further, the connecting plate is slidably connected with the bottom of the base, four universal wheels are rotatably connected to the bottom of the base, a sliding column is fixedly connected to the bottom of the base, and a support leg is slidably connected in the sliding column.

[0019] To sum up, the present application has at least one of the following beneficial technical effects:

[0020] 1. The present application can fix the placed articles, so that the articles are not easy to slide off, the second motor drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the two threaded sleeves to move, the two threaded sleeves respectively drive the two clamping plates to move, the two clamping plates clamp the two sides of the articles, so as to avoid the articles from sliding off the base, and the articles can be protected;

[0021] 2. The present application can increase the placement area, the bidirectional threaded rod drives the gear to rotate, the gear drives the rack to move, the rack drives the connecting plate to move, and the connecting plate moves out from the bottom of the base, so that more articles can be placed on the base, and the carrying of a large number of articles is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a perspective view of a leg-wheel combined type stair climbing machine in embodiment one of the present application;

[0023] Fig. 2is a front view schematic diagram of a leg-wheel combined stair climbing machine in the embodiment one of the present application;

[0024] Fig. 3 is a side view schematic diagram of a leg-wheel combined stair climbing machine in the embodiment one of the present application.

[0025] Fig. 1 is a base; 2, a support plate; 3, a handle; 4, a guardrail; 5, a support rod; 6, a transmission shaft; 7, a transmission roller; 8, a track; 9, a first motor; 10, a push rod motor; 11, a sliding plate; 12, a box body; 13, a second motor; 14, a bidirectional threaded rod; 15, a threaded sleeve; 16, a clamping plate; 17, a gear; 18, a rack; 19, a connecting plate; 20, a universal wheel; 21, a sliding column; 22, a support leg. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. EMBODIMENT

[0027] Referring to Figs. 1-3 A leg-wheel combined stair climbing machine comprises:

[0028] A base 1;

[0029] A support plate 2 is fixedly connected to the top of the base 1, and the top of the support plate 2 is fixedly connected with a handle 3;

[0030] Two guardrails 4 are both fixedly connected to the top of the base 1, and four support rods 5 are fixedly connected to one side of the support plate 2;

[0031] Two transmission shafts 6 are rotatably connected to the inner walls of the four support rods 5, and transmission rollers 7 are fixedly connected to the two transmission shafts 6;

[0032] A track 8 is transmissionally connected to the two transmission rollers 7, and a first motor 9 is fixedly connected to one side of the support rod 5;

[0033] A box body 12 is fixedly connected to the bottom of the base 1, a second motor 13 is fixedly connected to one side of the box body 12, a bidirectional threaded rod 14 is fixedly connected to the output shaft of the second motor 13, two threaded sleeves 15 are threadedly connected to the bidirectional threaded rod 14, one end of the bidirectional threaded rod 14 is rotatably connected to the inner wall of one side of the box body 12, and the top of each of the two threaded sleeves 15 is fixedly connected with a clamping plate 16.

[0034] A transmission assembly is fixedly connected to one side of the support plate 2.

[0035] Specifically, the transmission assembly comprises a push rod motor 10 fixedly connected to one side of the support plate 2, and the output shaft of the first motor 9 is fixedly connected with the transmission shaft 6, and the output shaft of the push rod motor 10 is fixedly connected with a sliding plate 11, and the sliding plate 11 is slidingly connected with one side of the support plate 2.

[0036] Specifically, the bottom of each of the two clamping plates 16 is slidingly connected with the top of the base 1, and the bidirectional threaded rod 14 is fixedly connected with a gear 17.

[0037] Specifically, the gear 17 is engaged with a rack 18, the top of the rack 18 is slidingly connected with the top of the box 12, and one end of the rack 18 is fixedly connected with a connecting plate 19.

[0038] Specifically, the connecting plate 19 is slidingly connected with the bottom of the base 1, the bottom of the base 1 is rotatably connected with four universal wheels 20, the bottom of the base 1 is fixedly connected with a sliding column 21, and the sliding column 21 is slidingly connected with a support leg 22.

[0039] The implementation principle of the leg-wheel combined stair climbing machine is as follows: first, place the object to be carried on the top of the base 1, then start the second motor 13, the second motor 13 drives the bidirectional threaded rod 14 to rotate, the bidirectional threaded rod 14 drives the two threaded sleeves 15 to move, the two threaded sleeves 15 respectively drive the two clamping plates 16 to move, the two clamping plates 16 clamp the two sides of the object, preventing the object from sliding off the base 1, which protects the object, at the same time, the bidirectional threaded rod 14 drives the gear 17 to rotate, the gear 17 drives the rack 18 to move, the rack 18 drives the connecting plate 19 to move, and the connecting plate 19 moves out of the bottom of the base 1, so that more objects can be placed on the base 1, facilitating the carrying of a large number of objects. After the object is placed completely, start the push rod motor 10, the push rod motor 10 drives the sliding plate 11 to move, the sliding plate 11 fixes the top of the object, so that the object is fixed on the base 1 and cannot move, pull the handle 3, and contact the track 8 with the stairs through the handle 3, so that the stair climbing machine is inclined, then start the first motor 9, the first motor 9 drives the transmission shaft 6 to rotate, the transmission shaft 6 drives the transmission rollers 7 to rotate, the transmission rollers 7 drive the other transmission rollers 7 to rotate through the track 8, so that the stair climbing machine moves on the stairs. When not climbing stairs, the support leg 22 is moved out of the sliding column 21, so that the support leg 22 supports the base 1, preventing the stair climbing machine from moving through the universal wheels 20. After the stair climbing machine finishes climbing, the two clamping plates 16 are released from clamping, the sliding plate 11 is released from fixing, then the object is unloaded, the support leg 22 is moved into the sliding column 21, so that the stair climbing machine moves through the four universal wheels 20. EMBODIMENT

[0040] The embodiment is different from embodiment one in that a third motor is fixedly connected on one side of the support plate 2, an output shaft of the third motor is fixedly connected with a second transmission shaft, a clamping block is fixedly connected on the second transmission shaft, a plurality of grooves are formed in the clamping block, when the stair climbing machine climbs stairs, the third motor is started, the third motor drives the second transmission shaft to rotate, the second transmission shaft drives the clamping block to rotate, the clamping block drives the grooves to rotate, so that the grooves are clamped on the outer side of the stairs, the crawler belt 8 of the stair climbing machine is prevented from slipping, and the stair climbing machine cannot slide down when slipping through the clamping block.

[0041] The above are preferred embodiments of the application, and are not intended to limit the protection scope of the application, so: equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A combination of leg wheels and stair climber, characterized by: Include: Base (1); Supporting plate (2) is fixedly connected to the top of the base (1), and the top of the supporting plate (2) is fixedly connected with the handle (3); Two guardrails (4) are fixedly connected with the top of the base (1), and four supporting rods (5) are fixedly connected to one side of the supporting plate (2); Two transmission shafts (6) are rotatably connected to the inner walls of the four supporting rods (5), and the transmission rollers (7) are fixedly connected to the two transmission shafts (6); The track (8) is drivingly connected to the two transmission rollers (7), and the first motor (9) is fixedly connected to one side of the supporting rod (5); The bottom of the base (1) is fixedly connected with the box (12), and the second motor (13) is fixedly connected to one side of the box (12). The output shaft of the second motor (13) is fixedly connected with the bidirectional threaded rod (14), and the bidirectional threaded rod (14) is threadedly connected with two threaded sleeves (15). One end of the bidirectional threaded rod (14) is rotatably connected with the inner wall of one side of the box (12), and the top of the two threaded sleeves (15) is fixedly connected with the clamping plate (16). The bottom of the two clamping plates (16) is slidably connected with the top of the base (1), and the bidirectional threaded rod (14) is fixedly connected with the gear (17). The gear (17) is engaged with the rack (18), and the top of the rack (18) is slidably connected with the top of the box (12). One end of the rack (18) is fixedly connected with the connecting plate (19). Transmission assembly is fixedly connected to one side of the supporting plate (2).

2. The stair and floor climbing machine according to claim 1, wherein: The transmission assembly includes a push rod motor (10) fixedly connected to one side of the supporting plate (2), and the output shaft of the first motor (9) is fixedly connected with the transmission shaft (6). The output shaft of the push rod motor (10) is fixedly connected with the sliding plate (11), and the sliding plate (11) is slidably connected with one side of the supporting plate (2).

3. The stair and floor climbing machine according to claim 1, wherein: The connecting plate (19) is slidably connected with the bottom of the base (1), the bottom of the base (1) is rotatably connected with four universal wheels (20), the bottom of the base (1) is fixedly connected with the sliding column (21), and the sliding column (21) is slidably connected with the supporting leg (22).

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