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Support-rod-braked trundle

A technology of brake feet and brake levers, applied in casters, wheels, transportation and packaging, etc., can solve the problems of positioning failure, easy torque damage to the wheel frame, affecting braking reliability, etc., and achieves convenient braking operation and control. The effect of dynamic stability and increased braking reliability

Inactive Publication Date: 2016-06-29
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This braking method makes the triggering part no longer rotate with the wheel frame, and the triggering part is above the wheel body, which facilitates the braking operation, but there are still wheel frames and wheel bodies that need to rotate around the supporting central axis, and the wheel body is easily damaged. And the force point of the universal wheel to the ground deviates from the support center axis, and the generated torque is easy to damage the wheel frame. In addition, their brake positioning devices all use push spring inflection point positioning, which belongs to unsteady positioning. When the external force is large, it is easy to cause positioning failure and affect the braking reliability

Method used

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  • Support-rod-braked trundle
  • Support-rod-braked trundle
  • Support-rod-braked trundle

Examples

Experimental program
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Embodiment Construction

[0029] like Figure 1 to Figure 5 , a strut brake caster, including a wheel base 1, a wheel frame 2, a wheel body 3, a bearing 4, a connecting sleeve 5, a braking rod 6, a spring 7, a pulling member 8, a positioning groove 1e, and a pin shaft groove 1f .

[0030] The wheel base 1 is the lower corner of the box body, with an upper protrusion 1a on the bottom surface and a side concave 1b on one side surface. There is a round seat hole 1c in the middle of the upper protrusion 1a, and a U-shaped frame 1d whose opening points to the side concave at the upper end. The pin shaft groove 1f is a horizontal slot hole respectively opened on the two wings of the U-shaped frame 1d; the positioning groove 1e is an inverted L-shaped through-hole groove provided on the side recess 1b.

[0031] The wheel frame 2 is connected to the wheel body 3 on one side of the lower end. The upper middle and lower ends of the wheel frame 2 are respectively provided with a coaxial upper hole 2a and a lowe...

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Abstract

The invention provides a support-rod-braked trundle. A U-shaped frame is arranged on a convex top surface of a trundle base; pin shaft slots are formed on two wings of the U-shaped frame; a positioning slot is formed on the trundle base in a lateral concave form; the trundle frame is pivoted with the trundle base; a brake rod body passes through a lower hole of the trundle frame and an inner baffle ring of a connector; a spring is arranged in a connecting sleeve; the lower end of the spring acts on the inner baffle ring of the connecting sleeve while the upper end acts on a baffle pan of the brake rod; a trigger handle is arranged at one end of a wrenching piece; a horizontal opposite penetrating pin shaft is arranged on the middle position of the wrenching piece; the other end of the wrenching piece is hinged with the upper end of the brake rod; the pin shaft respectively passes through the pin shaft slots on the two sides of the U-shaped frame, so as to form hinge and sliding connection. In a braking process, the trundle body leaves the ground and the trundle body and the trundle frame have a protecting function.

Description

technical field [0001] The invention relates to a wheel, in particular to a caster with a strut braking device. Background technique [0002] The braking device of the existing caster is arranged on the wheel frame of the caster, and the braking force acts on the wheel body, which is easy to damage the wheel body; if it is a universal wheel, the wheel body is deviated from the supporting center axis, causing the brake puller to follow. The rotation of the wheel body changes the position, which leads to inconvenient operation. Even if the wheel body is locked after braking, the wheel frame and the wheel body can still rotate around the supporting center axis. In addition, the force point of the universal wheel to the ground is deviated from the center axis of the support, and the generated moment is easy to damage the wheel frame. [0003] There are also some designs that hope to improve the existing casters. For example, the publication number is CN2888175Y "a caster used f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B33/00
CPCB60B33/0089B60B2900/212
Inventor 杨勇万春梅
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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