CN216069469U

CN216069469U - Handcart tire replacer

Info

Publication number: CN216069469U
Application number: CN202120870492.5U
Authority: CN
Inventors: 王刚; 王文思
Original assignee: Qingdao Xinhaoshun Special Vehicle Co ltd
Current assignee: Qingdao Xinhaoshun Special Vehicle Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-03-18
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a handcart tire replacer, which comprises a base, wherein a first motor is arranged on the upper surface of the base, a first lead screw is arranged at the output end of the first motor, a first moving block penetrates through the first lead screw, and the first moving block is rotatably connected with a first connecting rod; a first fixed block is arranged on the left side of the first lead screw and is rotatably connected with a second connecting rod; a supporting plate is arranged above the base, a second fixed block is arranged on the left side of the bottom of the supporting plate and is rotatably connected with the upper end of the first connecting rod, a third fixed block is arranged on the right side of the bottom of the supporting plate, a sliding rod is fixed between the third fixed block and the second fixed block, a sliding block penetrates through the sliding rod, and the sliding block is rotatably connected with the upper end of the second connecting rod; the device plays a supporting role for the handcart through the up-and-down movement of the supporting plate, so that wheels of the handcart can be far away from the ground, and workers can conveniently detach the wheels.

Description

Handcart tire replacer

Technical Field

The utility model relates to the field of handcart tires, in particular to a handcart tire replacer.

Background

The construction method is characterized in that construction personnel are often required to transfer construction materials in building construction, a trolley is often required to be used as a short-distance transport tool, tires of the conventional trolley cannot be detached from the trolley, the size of the tires cannot be changed, the road surface of a construction site is often uneven, even small soil piles sometimes occur, the trolley is difficult to pass on the road surface with potholes, the construction personnel often need to go around, but the construction efficiency is reduced, and the construction period is influenced; therefore, the tire quick-dismounting device is designed, tires can be quickly dismounted and mounted, tires of different sizes can be replaced, and the tire quick-dismounting device is suitable for the requirements of the road surface of a construction site and has important significance.

On the basis, the Chinese patent publication No. CN208714853U is a tire quick-release device of a trolley, which comprises a sleeve, a spring, a hollow conical body, a button and a telescopic rod, wherein the side wall of the sleeve is provided with an opening, the hollow conical body is arranged in the sleeve and can move relative to the sleeve, the side wall of the hollow conical body is provided with a sliding hole, the top of the hollow conical body is fixedly connected with the button, and the telescopic rod is clamped in the sliding hole and can slide along the sliding hole; the spring is arranged between the bottom of the sleeve and the bottom of the hollow conical body, when the spring is in a natural state, the end part of the telescopic rod extends out of the opening of the sleeve, and the tire is clamped between the end part of the telescopic rod and the bottom of the sleeve; the tire quick-dismounting device is simple in structure, ingenious in design and convenient to operate, can be widely applied to quickly dismounting and mounting the tire of the trolley, facilitates the trolley to quickly run on a hollow road surface, improves construction efficiency, saves construction cost and improves practicability of the trolley; however, the device does not have a supporting function, and the tire is tightly attached to the ground due to the gravity when the tire is detached, so that the tire is inconvenient for a worker to take out, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hand cart tire replacer to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a handcart tire replacer comprises a base, wherein a first motor is arranged on the upper surface of the base, a first lead screw is arranged at the output end of the first motor in the horizontal direction, a first moving block penetrates through the first lead screw, and the first moving block is rotatably connected with a first connecting rod; a first fixing block is arranged on the left side of the first lead screw, the first fixing block is rotatably connected with a second connecting rod, and the first connecting rod is rotatably connected with the second connecting rod; a supporting plate is arranged above the base, a second fixed block is arranged on the left side of the bottom of the supporting plate and is rotatably connected with the upper end of the first connecting rod, a third fixed block is arranged on the right side of the bottom of the supporting plate, a sliding rod is fixed between the third fixed block and the second fixed block, a sliding block penetrates through the sliding rod, and the sliding block is rotatably connected with the upper end of the second connecting rod; the right side of backup pad is equipped with the fourth motor, the output of fourth motor is equipped with the screw sleeve.

As a preferred embodiment of the present invention: the upper surface of base is equipped with the second motor, the output of second motor is equipped with the second lead screw that is vertical direction setting, the second lead screw runs through there is the removal frame.

As a still further preferable embodiment of the present invention: the movable frame is characterized in that a third motor is arranged inside the movable frame, a third lead screw is arranged at the output end of the third motor, the third lead screw penetrates through the movable frame, and a second movable block penetrates through the third lead screw.

As a still further preferable embodiment of the present invention: an electric push rod is arranged on the right side of the second moving block, and the right end of the electric push rod is fixedly connected with a fourth motor.

As a still further preferable embodiment of the present invention: the bottom of the first moving block is rotatably connected with a roller, a sliding groove is formed in the base, and the roller is located in the sliding groove and is in rolling connection with the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that: when the device is used, the first motor is started, the first motor drives the first moving piece to move leftwards through the first lead screw, the first moving piece moves leftwards and drives the upper end of the first connecting rod to move upwards, the upper end of the first connecting rod drives the upper end of the second connecting rod to move upwards while moving upwards, and further the supporting plate is driven to move upwards, the supporting plate plays a role in supporting the trolley, and finally the wheels of the trolley are far away from the ground, so that workers can conveniently disassemble the wheels; in addition, the device drives the screw sleeve to rotate through the fourth motor, so that the screw on the wheel can be conveniently disassembled, the tire can be quickly disassembled, and the tires with different sizes can be replaced.

Drawings

FIG. 1 is a front view showing the overall construction of a hand truck tire changer.

Figure 2 is a front view of a cart tire changer moving frame connection.

Figure 3 is a top view of a cart tire changer moving frame connection.

In the figure: 1-a first fixed block, 2-a base, 3-a first lead screw, 4-a sliding chute, 5-a roller, 6-a first moving block, 7-a first motor, 8-a second fixed block, 9-a first connecting rod, 10-a supporting plate, 11-a sliding rod, 12-a second connecting rod, 13-a sliding block, 14-a third fixed block, 15-a second motor, 16-a second lead screw, 17-a moving frame, 18-a third motor, 19-an electric push rod, 20-a fourth motor, 21-a screw sleeve, 22-a third lead screw and 23-a second moving block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, in the embodiment of the present invention, a device for mounting and dismounting a tire of a cart includes a base 2, a first motor 7 is disposed on an upper surface of the base 2, a first lead screw 3 disposed in a horizontal direction is disposed at an output end of the first motor 7, a first moving block 6 penetrates through the first lead screw 3, and the first moving block 6 is rotatably connected to a first connecting rod 9; a first fixed block 1 is arranged on the left side of the first lead screw 3, the first fixed block 1 is rotatably connected with a second connecting rod 12, and the first connecting rod 9 is rotatably connected with the second connecting rod 12; a supporting plate 10 is arranged above the base 2, a second fixed block 8 is arranged on the left side of the bottom of the supporting plate 10, the second fixed block 8 is rotatably connected with the upper end of a first connecting rod 9, a third fixed block 14 is arranged on the right side of the bottom of the supporting plate 10, a sliding rod 11 is fixed between the third fixed block 14 and the second fixed block 8, a sliding block 13 penetrates through the sliding rod 11, and the sliding block 13 is rotatably connected with the upper end of a second connecting rod 12; a fourth motor 20 is arranged on the right side of the support plate 10, and a screw sleeve 21 is arranged at the output end of the fourth motor 20.

Specifically, the upper surface of base 2 is equipped with second motor 15, the output of second motor 15 is equipped with the second lead screw 16 that is vertical direction setting, second lead screw 16 runs through has the removal frame 17.

Specifically, a third motor 18 is arranged inside the moving frame 17, a third lead screw 22 is arranged at an output end of the third motor 18, the third lead screw 22 penetrates through the moving frame 17, and a second moving block 23 penetrates through the third lead screw 22.

Specifically, an electric push rod 19 is arranged on the right side of the second moving block 23, and the right end of the electric push rod 19 is fixedly connected with a fourth motor 20.

The working principle of the utility model is as follows: when the device is used, the device is placed below a trolley, then a first motor 7 is started, the first motor 7 drives a first moving part to move leftwards through a first lead screw 3, the first moving part moves leftwards and drives the upper end of a first connecting rod 9 to move upwards, the upper end of the first connecting rod 9 drives the upper end of a second connecting rod 12 to move upwards while moving upwards, and then a supporting plate 10 is driven to move upwards, the supporting plate 10 plays a supporting role in supporting the trolley, and finally wheels of the trolley are far away from the ground, so that workers can conveniently detach the wheels; in addition, the device drives the second lead screw 16 to rotate through the second motor 15, the second lead screw 16 drives the movable frame 17 to move up and down, the third motor 18 drives the second movable block 23 to move back and forth through the third lead screw 22, the fourth motor 20 is driven to move left and right through the electric push rod 19, the screw sleeve 21 can move up and down, back and forth, and the fourth motor 20 drives the screw sleeve 21 to rotate, so that the screws on the wheels can be conveniently disassembled.

Example 2:

on the basis of the embodiment 1, in the embodiment of the utility model, the bottom of the first moving block 6 is rotatably connected with a roller 5, the base 2 is internally provided with a sliding groove 4, and the roller 5 is positioned inside the sliding groove 4 and is in rolling connection with the sliding groove 4.

The arrangement of the idler wheels 5 has a supporting effect on the moving block, and the stability of the first moving block 6 during moving is effectively improved through the cooperation of the idler wheels 5 and the sliding grooves 4.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hand truck tyre changer comprising a base (2); the device is characterized in that a first motor (7) is arranged on the upper surface of the base (2), a first lead screw (3) arranged in the horizontal direction is arranged at the output end of the first motor (7), a first moving block (6) penetrates through the first lead screw (3), and the first connecting rod (9) is rotatably connected with the first moving block (6); a first fixed block (1) is arranged on the left side of the first lead screw (3), the first fixed block (1) is rotatably connected with a second connecting rod (12), and the first connecting rod (9) is rotatably connected with the second connecting rod (12); a supporting plate (10) is arranged above the base (2), a second fixed block (8) is arranged on the left side of the bottom of the supporting plate (10), the second fixed block (8) is rotatably connected with the upper end of the first connecting rod (9), a third fixed block (14) is arranged on the right side of the bottom of the supporting plate (10), a sliding rod (11) is fixed between the third fixed block (14) and the second fixed block (8), a sliding block (13) penetrates through the sliding rod (11), and the sliding block (13) is rotatably connected with the upper end of the second connecting rod (12); the right side of backup pad (10) is equipped with fourth motor (20), the output of fourth motor (20) is equipped with screw sleeve (21).

2. A tyre changer for trolleys according to claim 1, characterized in that the upper surface of the base (2) is provided with a second motor (15), the output of the second motor (15) being provided with a second lead screw (16) arranged in a vertical orientation, the second lead screw (16) having a moving frame (17) extending through it.

3. A tyre changer for trolleys according to claim 2, characterized in that the inside of the moving frame (17) is provided with a third motor (18), the output of the third motor (18) is provided with a third lead screw (22), the third lead screw (22) extends through the moving frame (17), and the third lead screw (22) extends through a second moving block (23).

4. A tyre changer for trolleys according to claim 3, wherein the second movable block (23) is provided with an electric push rod (19) on the right side, and the right end of the electric push rod (19) is fixedly connected with the fourth motor (20).

5. A tyre changer for trolleys according to claim 1, characterized in that the first movable block (6) is rotatably connected at its bottom with rollers (5), the base (2) is provided with a chute (4) inside, and the rollers (5) are located inside the chute (4) and are in rolling connection therewith.