CN219118884U

CN219118884U - Trailer device suitable for movable stand

Info

Publication number: CN219118884U
Application number: CN202223550179.7U
Authority: CN
Inventors: 王瑞宝
Original assignee: Chengdu Huihong Technology Group Co ltd
Current assignee: Chengdu Huihong Technology Group Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-02
Anticipated expiration: 2032-12-29

Abstract

The utility model belongs to the technical field of movable stands, and particularly discloses a trailer device suitable for the movable stand, which comprises a driving member and a driven member, wherein the driven member comprises a main frame, a plurality of vertical rods are arranged on the main frame, the vertical rods are connected with a first traveling wheel frame, a plurality of first driven wheels are arranged at the bottom of the first traveling wheel frame, the driving member comprises a driving motor, second traveling wheel frames are arranged on two sides of the driving motor, springs are arranged at the tops of the second traveling wheel frames, supporting rods are arranged on the first traveling wheel frames, one ends of the springs, far away from the second traveling wheel frames, are connected with the bottoms of the supporting rods, and a plurality of driving wheels are arranged at the bottoms of the second traveling wheel frames. In the movement process, when the ground is uneven, the driving wheel contracts or stretches out under the drive of the spring, so that the stress of the driving wheel and the driven wheel group is uniform, the device moves straight in a balanced way, and the situation of deflection of the movable stand is avoided.

Description

Trailer device suitable for movable stand

Technical Field

The utility model relates to the technical field of movable stands, in particular to a trailer device suitable for the movable stands.

Background

Telescopic movable stands are arranged in public places such as stadiums, theatres or studios and the like so as to improve the utilization rate of the public places. When a large-scale performance is held, the movable stand can be folded, so that the performance area in a venue is increased, and when a match is made or a small-scale performance is made, the movable stand can be pulled out completely, and more spectators can be accommodated for watching.

The movable stand is driven by the bottom trailer structure, but if the ground is uneven in the telescopic process, wheels on one side of the trailer structure leave the ground, the wheels on two sides are stressed unevenly, so that the stand is deviated to one side, and the stand is required to be manually adjusted to linearly advance, so that inconvenience is brought to staff.

Disclosure of Invention

The utility model aims to provide a trailer device suitable for a movable stand, and aims to solve the technical problem that the movable stand is deviated when the ground is uneven in the moving process of the existing trailer device.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a trailer device suitable for movable stand, including driving member and the driven member that increases in order, the driven member includes the body frame, the symmetry is provided with a plurality of montants on the body frame, the montant is connected with first wheel carrier of walking, the bottom of first wheel carrier of walking is provided with a plurality of first follow driving wheels, driving member includes driving motor, driving motor's both sides are provided with the second of walking wheel carrier that parallels with first wheel carrier, the top of second wheel carrier of walking is provided with the spring, be provided with the bracing piece parallel with the body frame on the first wheel carrier of walking, the one end that the second was walked to the spring was kept away from to the second is connected with the bottom of bracing piece, the bottom of second wheel carrier of walking is provided with a plurality of action wheels.

Preferably, two ends of the main frame are respectively connected with a cross rod parallel to the first running wheel frame, and the bottom of the cross rod is provided with a second driven wheel.

Preferably, a connecting piece is hinged to the side part of the first wheel carrier, and one end, away from the first wheel carrier, of the connecting piece is hinged to the side part of the second wheel carrier.

Preferably, the connecting piece is a groove-shaped frame with two open ends, a strip-shaped hole is formed in the side part of the groove-shaped frame, and the strip-shaped hole is positioned on one side of the second wheel carrier.

Preferably, a pull rod is hinged to the middle of the second wheel carrier, and one end of the pull rod, which is far away from the second wheel carrier, is connected with the main frame.

Preferably, a plurality of chain wheels are arranged on the side part of the second wheel carrier, the chain wheels are coaxial with the driving wheel, and the chain wheels are connected with the driving motor through chains.

Preferably, the top of the second wheel carrier is provided with a support column, the support column is positioned in the spring, and the top of the support column movably penetrates through the support rod.

The technical scheme of the utility model has at least the following beneficial effects:

when the utility model encounters the condition that the pavement is protruded in the movement process, the driving wheel contracts and contacts with the ground in the same horizontal plane with the first driven wheel and the second driven wheel, so that the friction force with the ground is increased; when encountering the sunken condition in road surface, the action wheel downwardly extending until contact with the depressed part guarantees that both sides atress is even, avoids the condition that the movable stand appears the off tracking.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic side view of the present utility model;

fig. 4 is a schematic structural view of the connector in fig. 3.

Icon: 1-a main frame; 2-a spring; 3-driving a motor; 4-sprocket; 5-a driving wheel; 6-a first driven wheel; 7-a pull rod; 8-a first carriage; 9-a connector; 10-bar-shaped holes; 11-a second driven wheel; 12-a second carriage; 13-supporting rods.

Detailed Description

Examples

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

The present utility model is described in detail below with reference to fig. 1-4.

The utility model provides a trailer device suitable for movable stand, includes driving member and the driven member that increases in order, and driven member includes body frame 1, and the symmetry is provided with two montants on the body frame 1, and the bottom of montant is connected with first wheel carrier 8, and the bottom of a first wheel carrier 8 is provided with three first from driving wheel 6, and the both ends of body frame 1 are connected with the horizontal pole that is parallel with first wheel carrier 8 respectively, and the bottom of horizontal pole is provided with the second from driving wheel 11, guarantees the equilibrium of device.

The driving component comprises a driving motor 3, two sides of the driving motor 3 are provided with a second traveling wheel frame 12 parallel to the first traveling wheel frame 8, the side part of the first traveling wheel frame 8 is hinged with a connecting piece 9, one end of the connecting piece 9 away from the first traveling wheel frame 8 is hinged with the side part of the second traveling wheel frame 12, and the function of the connecting piece 9 is to ensure synchronous traveling of the two traveling wheel frames.

The first wheel carrier 8 is provided with a supporting rod 13 parallel to the main frame 1, the top of the second wheel carrier 12 is provided with a spring 2 and a supporting column, the supporting column is positioned in the spring 2, one end of the spring 2 away from the second wheel carrier 12 is connected with the bottom of the supporting rod 13, the top of the supporting column movably penetrates through the supporting rod 13, the bottom of one second wheel carrier 12 is provided with two driving wheels 5, namely, the periphery is flat, when the middle part of the second wheel carrier 12 moves on the ground, the bottommost end of the driving wheels 5 is higher than the bottommost end of the first driven wheels 6, the driving wheels 5 are contacted with the protruding parts, the spring 2 is stressed and contracted, the supporting column extends upwards to the outside of the supporting rod 13, the driving wheels 5, the first driven wheels 6 and the second driven wheels 11 are positioned on the same horizontal plane and are contacted with the ground, the friction force with the ground is increased, the stress of the device is even, and the movable stand is enabled to move straight and advance uniformly without deflection.

Because the driving wheel 5, the first driven wheel 6 and the second driven wheel 11 are positioned at the same horizontal plane at the beginning in the movement process, the spring 2 is in a semi-compressed state at the moment, namely, when the periphery of the spring is flat and the middle part of the spring is sunken, the spring 2 stretches out under the action of gravity, the driving wheel 5 falls into the sunken position, and at the moment, the bottommost end of the driving wheel 5 is lower than the bottommost end of the first driven wheel 6, so that the movement of the device is stable.

The lateral part of second walk wheel carrier 12 is provided with a plurality of sprocket 4, and sprocket 4 and action wheel 5 are coaxial to be located driving motor 3's both sides, sprocket 4 and driving motor 3 pass through the chain to be connected, and driving motor 3 passes through the chain and drives sprocket 4 rotation promptly, thereby drives action wheel 5 rotation, realizes the steady walking of device.

The connecting piece 9 is a groove-shaped frame with two open ends, a strip-shaped hole 10 is formed in the side part of the groove-shaped frame, the strip-shaped hole 10 is positioned on one side of the second wheel carrier 12, and the function of forming the strip-shaped hole 10 is to enable the second wheel carrier 12 to keep inconvenient distance with the first wheel carrier 8 in the shrinkage process, so that the deviation of the device is avoided.

The middle part of the second wheel carrier 12 is hinged with a pull rod 7, one end of the pull rod 7 far away from the second wheel carrier 12 is connected with the main frame 1, and the pull rod 7 has the function of keeping the balance between the second wheel carrier 12 and the main frame 1 when the second wheel carrier 12 is contracted, so that the stability of the device is ensured.

The above examples merely illustrate specific embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the utility model, which fall within the scope of protection of the utility model.

Claims

1. The utility model provides a trailer device suitable for movable stand, includes driving member and driven member that increases in order, driven member includes body frame (1), symmetry is provided with a plurality of montants on body frame (1), the montant is connected with first wheel carrier (8), the bottom of first wheel carrier (8) is provided with a plurality of first driven wheels (6), driving member includes driving motor (3), driving motor (3) both sides are provided with second wheel carrier (12) that walk that are parallel with first wheel carrier (8),

the method is characterized in that: the top of second walk wheel carrier (12) is provided with spring (2), be provided with on first walking wheel carrier (8) with body frame (1) parallel bracing piece (13), the one end that second walk wheel carrier (12) was kept away from to spring (2) is connected with the bottom of bracing piece (13), the bottom of second walk wheel carrier (12) is provided with a plurality of action wheels (5).

2. The trailer device suitable for a movable stand according to claim 1, characterized in that two ends of the main frame (1) are respectively connected with a cross bar parallel to the first carriage (8), and the bottom of the cross bar is provided with a second driven wheel (11).

3. The trailer device for a movable stand according to claim 1, characterized in that the side of the first carriage (8) is hinged with a connecting piece (9), and that one end of the connecting piece (9) remote from the first carriage (8) is hinged with the side of the second carriage (12).

4. A trailer device for a movable stand according to claim 3, characterized in that the connecting piece (9) is a trough-shaped frame with two open ends, the side of the trough-shaped frame is provided with a bar-shaped hole (10), and the bar-shaped hole (10) is located at one side of the second carriage (12).

5. The trailer device suitable for the movable stand according to claim 1, wherein a pull rod (7) is hinged to the middle part of the second carriage (12), and one end of the pull rod (7) away from the second carriage (12) is connected with the main frame (1).

6. The trailer device suitable for a movable stand according to claim 5, characterized in that the side of the second carriage (12) is provided with a plurality of chain wheels (4), the chain wheels (4) are coaxial with the driving wheel (5), and the chain wheels (4) are connected with the driving motor (3) through a chain.

7. The trailer device for a movable stand according to claim 1, characterized in that the top of the second carriage (12) is provided with a support column, which is located in the spring (2), and the top of the support column is movably penetrated through the support rod (13).