Platform rack with adjustable direction

Abstract

The utility model discloses a direction-adjustable platform rack, and belongs to the technical field of platform racks. The device mainly comprises a rack, a plurality of universal wheels are fixed to the edge of the lower side of the rack, a supporting plate is fixed to the middle of the lower side of the rack, a fixing plate is arranged on the upper side of the supporting plate, the fixing plate and the rack are fixed, and a rotating sleeve is rotationally arranged in the middle of the supporting plate; and a fixing sleeve corresponding to the rotating sleeve in position is fixed to the fixing plate, a lifting shaft is arranged in the fixing sleeve in a sliding mode, the lower end of the lifting shaft penetrates through the rotating sleeve and then is rotationally provided with a supporting disc, and the rotating sleeve is in threaded connection with the lifting shaft. The inner wall of the fixing sleeve is matched with the outer wall of the lifting shaft, and a limiting groove is formed in one side of the lifting shaft. The upper end of the rotating sleeve is fixedly sleeved with a turbine, one side of the turbine is meshed with a worm, and the worm is rotationally arranged in the rack. The direction-adjustable platform rack disclosed by the utility model achieves the effect of in-situ steering.

Description

TECHNICAL FIELD

[0001] The utility model relates to platform rack technical field, more specifically, it relates to a platform rack of adjustable direction. BACKGROUND

[0002] The existing platform rack mainly realizes movement and steering through a plurality of universal wheels. However, when steering, it is difficult to steer in place due to the lack of fulcrum, so the user needs to continuously push the rack forward and backward, and then make the rack rotate, which is very troublesome.

[0003] Therefore, it is necessary to provide a platform rack of adjustable direction to solve the above problems. UTILITY MODEL CONTENT

[0004] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a platform rack of adjustable direction to achieve the effect of steering in place.

[0005] The technical scheme adopted by the present application to solve its technical problems is: a platform rack of adjustable direction, comprising a rack, a plurality of universal wheels are fixed on the edge of the lower side of the rack, a support plate is fixed in the middle of the lower side of the rack, a fixed plate is arranged on the upper side of the support plate, the fixed plate is fixed between the rack, a rotating sleeve is rotatably arranged in the middle of the support plate, a fixed sleeve corresponding to the position of the rotating sleeve is fixed on the fixed plate, a lifting shaft is slidably arranged in the fixed sleeve, the lower end of the lifting shaft is rotatably arranged with a support disc after penetrating through the rotating sleeve, and the rotating sleeve and the lifting shaft are threadedly connected.

[0006] Further, the inner wall of the fixed sleeve and the outer wall of the lifting shaft are adapted, and a limiting groove is arranged on one side of the lifting shaft.

[0007] Further, a turbine is fixed on the upper end of the rotating sleeve, a worm is engaged on one side of the turbine, and the worm is rotatably arranged in the interior of the rack.

[0008] Further, a drive shaft is fixed on one end of the worm after penetrating through and extending out of the rack, the cross section of the drive shaft is hexagonal, a drive sleeve is sleeved on the drive shaft, the drive sleeve is adapted to the drive shaft, and a pedal is fixed on the upper side of the drive sleeve.

[0009] Further, a through hole is arranged on one side of the drive sleeve, a bolt is threadedly linked in the through hole, and one end of the bolt abuts against the drive shaft after penetrating through the through hole.

[0010] The utility model has the advantages that:

[0011] The rotating sleeve and the lifting shaft are threadedly connected, the lifting shaft can be controlled to rise or fall, so that the support disc abuts against the ground or separates from the ground;

[0012] When the support disc is separated from the ground, the user can push the frame at will, and the position of the frame is adjusted conveniently;

[0013] When the support disc is against the ground, the support disc becomes a fulcrum, and the user pushes the frame to rotate around the lifting shaft conveniently. This method avoids the trouble of rotating the frame in the process of continuously pushing the frame forward and backward in the prior art, and makes the frame directly rotate in place, so that the adjustment space required when the direction of the frame is adjusted is reduced, and the adjustment in a narrow position is applicable. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings constituting a part of the specification of the present application are used to provide further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a whole schematic view of the platform frame with adjustable direction in the present application;

[0016] Figure 2 It is a structure schematic view of the middle pedal; Figure 1

[0017] Figure 3 It is a structure schematic view of the rotating sleeve and the fixing sleeve; Figure 1

[0018] In the drawings:

[0019] 1, frame; 11, universal wheel;

[0020] 2, support plate; 21, rotating sleeve; 22, turbine; 23, worm; 24, drive shaft; 25, drive sleeve; 26, pedal; 27, bolt;

[0021] 3, fixed plate; 31, fixing sleeve; 32, lifting shaft; 33, limiting groove; 34, support disc. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0024] ​​In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually directed to the direction shown in the drawing, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually directed to the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0025] As shown in Figures 1-3 The application provides a direction-adjustable platform rack, which comprises a rack 1, a plurality of universal wheels 11 are fixed to the edge of the lower side of the rack 1. A support plate 2 is fixed to the middle of the lower side of the rack 1, and a fixed plate 3 is arranged on the upper side of the support plate 2 and fixed between the fixed plate 3 and the rack 1.

[0026] A rotating sleeve 21 is rotationally arranged in the middle of the support plate 2, and a fixed sleeve 31 corresponding to the position of the rotating sleeve 21 is fixed to the fixed plate 3. A lifting shaft 32 is slidably arranged in the fixed sleeve 31, the inner wall of the fixed sleeve 31 is matched with the outer wall of the lifting shaft 32, and a limiting groove 33 is arranged on one side of the lifting shaft 32.

[0027] The lower end of the lifting shaft 32 is rotationally arranged with a support disc 34 after penetrating through the rotating sleeve 21, and the lifting shaft 32 is threadedly connected with the rotating sleeve 2.

[0028] A turbine 22 is fixed to the upper end of the rotating sleeve 21, one side of the turbine 22 is engaged with a worm 23, and the worm 23 is rotationally arranged in the interior of the rack 1. The turbine 22 and the worm 23 are located between the support plate 2 and the fixed plate 3.

[0029] One end of the worm 23 penetrates through and extends out of the rack 1 and is fixed with a driving shaft 24, and the driving shaft 24 is hexagonal in cross section. A driving sleeve 25 is sleeved on the driving shaft 24, the driving sleeve 25 is matched with the driving shaft 24, and a pedal 26 is fixedly installed on the upper side of the driving sleeve 25.

[0030] One side of the driving sleeve 25 is provided with a through hole, and a bolt 27 is threadedly connected in the through hole, and one end of the bolt 27 penetrates through the through hole and abuts against the driving shaft 24.

[0031] Since the driving shaft 24 is hexagonal in cross section and the driving sleeve 25 is matched with the driving shaft 24, the user can rotate by hand or step on the pedal 26, thereby driving the worm 23 to rotate through the driving sleeve 25 and the driving shaft 24. The worm 23 drives the rotating sleeve 21 to rotate through the inner core of the turbine 22.

[0032] The inner wall of the fixing sleeve 31 is matched with the outer wall of the lifting shaft 32, and a limiting groove 33 is arranged on one side of the lifting shaft 32. The lifting shaft 32 can only move up and down along the fixing sleeve 31 and cannot rotate. Therefore, when the rotating sleeve 21 rotates, the relative rotation between the lifting shaft 32 and the rotating sleeve 2 will make the lifting shaft 32 move up and down along the fixing sleeve 31 through the threaded connection between the lifting shaft 32 and the rotating sleeve 2.

[0033] When the mobile frame 1 is moved, the user can rotate the pedal 26 by hand to make the lifting shaft 32 rise to a higher distance, so that the supporting disc 34 does not contact the ground, avoiding the problem that the supporting disc 34 is blocked by the obstacles on the ground, causing the frame 1 to be unable to move.

[0034] When the frame 1 moves close to the placement position, the user rotates the pedal 26 by hand again to make the lifting shaft 32 descend until the supporting disc 34 contacts the ground. At this time, the bolt 27 is loosened, and the user can remove the driving sleeve 25 and the pedal 26 from the driving shaft 24. After adjusting the pedal 26 to an appropriate angle for stepping, the driving sleeve 25 is sleeved back on the driving shaft 24, and the bolt 27 is tightened to fix the driving sleeve 25 and the pedal 26 on the driving shaft 24.

[0035] At this time, the user steps on the pedal 26 to make the worm 23 rotate to one side, so that the lifting shaft 32 rises by a distance, and the supporting disc 34 is separated from the ground, so that the user can push the frame 1 at will to facilitate the adjustment of the position of the frame 1.

[0036] When the worm 23 rotates to the other side, the lifting shaft 32 drives the supporting disc 34 to abut against the ground. At this time, through the rotational connection between the lifting shaft 32 and the supporting disc 34, the supporting disc 34 becomes a fulcrum, which facilitates the user to push the frame 1 to rotate around the lifting shaft 32 (i.e. the center of the frame 1). This method avoids the trouble of rotating the frame 1 in the process of constantly pushing the frame 1 forward and backward in the prior art, so that the frame 1 can be directly rotated in place, which reduces the adjustment space required when adjusting the direction of the frame 1 and can be suitable for adjustment in a narrow position.

[0037] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0038] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0039] It should be noted that the terms "first", "second", and the like, used in the description and in the claims of the present application are intended to distinguish similar elements or steps in the specification. It should be understood that the use of these terms in the description is not to imply a fixed order among the steps therein. It is understood that the order of steps in the embodiments described herein can be modified in accordance with the practice of the application.

[0040] The preferred embodiments of the present application have been described above with the aid of drawing only for the purpose of illustration, and the present application is not limited to the preferred embodiments. Changes in form and detail can be made to the application without departing from the spirit of the application. It is intended to cover all such changes and modifications within the scope of the application.

[0041] The preferred embodiments of the present application have been described above with the aid of drawing only for the purpose of illustration, and the present application is not limited to the preferred embodiments. Changes in form and detail can be made to the application without departing from the spirit of the application. It is intended to cover all such changes and modifications within the scope of the application.

Claims

1. An adjustable direction platform rack, characterized by: The utility model provides a kind of lifting machine, including rack (1), the edge of the lower side of the rack (1) is fixed with several universal wheels (11), the middle of the lower side of the rack (1) is fixed with support plate (2), the upper side of the support plate (2) is provided with fixed plate (3), the fixed plate (3) is fixed between rack (1), the middle of the support plate (2) is rotatably provided with rotating sleeve (21), the fixed plate (3) is fixed with the fixed sleeve (31) corresponding with the position of rotating sleeve (21), the fixed sleeve (31) is slidably provided with lifting shaft (32), the lower end of the lifting shaft (32) is rotatably provided with support disc (34) after passing through rotating sleeve (21), and rotating sleeve (21) is threadedly connected with lifting shaft (32).

2. An adjustable direction platform rack as claimed in claim 1, wherein: The inner wall of the fixed sleeve (31) is matched with the outer wall of the lifting shaft (32), and the side of the lifting shaft (32) is provided with a limiting groove (33).

3. An adjustable direction platform rack as claimed in claim 1, wherein: The upper end of the rotating sleeve (21) is fixedly provided with a turbine (22), one side of the turbine (22) is engaged with a worm (23), and the worm (23) is rotatably arranged in the rack (1).

4. An adjustable direction platform rack as claimed in claim 3, wherein: One end of the worm (23) penetrates through the rack (1) and is fixedly provided with a driving shaft (24), the cross section of the driving shaft (24) is hexagonal, the driving shaft (24) is sleeved with a driving sleeve (25), the driving sleeve (25) is matched with the driving shaft (24), and the upper side of the driving sleeve (25) is fixedly provided with a pedal (26).

5. An adjustable direction platform rack as claimed in claim 4, wherein: One side of the driving sleeve (25) is provided with a through hole, the through hole is threadedly connected with a bolt (27), one end of the bolt (27) abuts against the driving shaft (24) after penetrating through the through hole.

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