CN103504750A - Crawler draw-bar box - Google Patents
Crawler draw-bar box Download PDFInfo
- Publication number
- CN103504750A CN103504750A CN201210203198.4A CN201210203198A CN103504750A CN 103504750 A CN103504750 A CN 103504750A CN 201210203198 A CN201210203198 A CN 201210203198A CN 103504750 A CN103504750 A CN 103504750A
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- CN
- China
- Prior art keywords
- crawler
- draw
- bar box
- return pulley
- take turns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a crawler draw-bar box, especially relates to a draw-bar bag for realizing convenient stair activity, and provides a crawler draw-bar box capable of realizing the easy stair activity and walking on flat ground. The crawler draw-bar box comprises a box body and a draw bar, the bottom of a backside surface of the box body is movably connected with a crawler unit, and the crawler unit comprises a tripod body, a return pulley, an upper wheel, a middle wheel and a crawler belt; the upper wheel is movably connected to the tripod body through a hinge shaft; the return pulley is connected with the tripod body through a connection shaft, and an inner end of the connection shaft is connected to the box body; the middle wheel is connected to the tripod body through a hollow shaft, a positioning pin is arranged in the hollow shaft, and at least two positioning pinholes are arranged on the side surface of the box body; and the crawler belt is enveloped on the return pulley, the upper wheel and the middle wheel. The crawler draw-bar box can be pulled on steps of a stair through utilizing the crawler belt, so a problem of one-by-one step climbing of the draw-bar box can be avoided, and the stair activity of the draw-bar box can be easily carried out.
Description
Technical field
The present invention relates to a kind of draw-bar box, pull bar bag that particularly can facilitating going upstairs and going downstairs.
Background technology
Conventional pull bar bag only has two wheels to tow on level land, although also there are two pairs of three wheel combination, often step to a new level or needs very great strength pull-up draw-bar box, easily stair activity.
Summary of the invention
The present invention is directed to above problem, provide a kind of energy light stair activity, simultaneously also at the crawler-type draw-bar box of level walking.
Technical scheme of the present invention is: comprise casing and pumping rod, in the bottom at rear, casing side, be connected with crawler unit, described crawler travel comprise tripod support body, return pulley, on take turns, middle wheel and crawler belt; On described, take turns by hinge and be movably connected on described triangle support body; Described return pulley connects triangle support body by connecting axle, and the inner termination of described connecting axle is connected on casing; In described, take turns by hollow shaft and be connected on tripod, in described hollow shaft, be provided with alignment pin, described casing side is provided with at least two dowel holes; Described crawler belt envelope described return pulley, on wheel and in take turns.
Described return pulley and on take turns between tangential length be greater than 40 centimetres.
Crawler-type draw-bar box provided by the invention, on stair, can utilize crawler belt to pull on ladder, a plurality of dowel holes can be reconciled angle according to the gradient simultaneously, so just can avoid draw-bar box to climb one by one the problem of step, and it is movable downstairs comparatively easily draw-bar box to be gone up.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is action schematic diagram of the present invention,
Fig. 3 is that the present invention uses state reference map;
In figure, 1 is casing, the 2nd, tripod support body, the 31st, return pulley, the 311st, connecting axle, the 32nd, on take turns, the 33rd, middle wheel, the 331st, alignment pin, the 4th, crawler belt.
The specific embodiment
The present invention as Figure 1-3, comprises casing 1 and pumping rod, in the bottom at casing 1 rear, side, is connected with crawler unit, described crawler travel comprise tripod support body 2, return pulley 31, on take turns 32, middlely take turns 33 and crawler belt 4; On described, taking turns 32 is movably connected on described triangle support body 2 by hinge; Described return pulley 31 connects triangle support body 2 by connecting axle 311, and the inner termination of described connecting axle 311 is connected on casing 1; In described, take turns 33 and be connected on tripod 2 by hollow shaft, be provided with alignment pin 331 in described hollow shaft, described casing 1 side is provided with at least two dowel holes; Described crawler belt 4 envelopes described return pulley 31, on take turns 32 and in take turns on 33.Alignment pin 331 can adopt spring return type, and dowel hole is along take on the same circumference that connecting axle 311 axle center are the center of circle.
Described return pulley 31 and on take turns 32 between tangential length be greater than 40 centimetres.Can cross at least two-stage stair, so that continuous walking.
Claims (2)
1. a crawler-type draw-bar box, comprises casing and pumping rod, it is characterized in that, in the bottom at rear, casing side, is connected with crawler unit, described crawler travel comprise tripod support body, return pulley, on take turns, middle wheel and crawler belt; On described, take turns by hinge and be movably connected on described triangle support body; Described return pulley connects triangle support body by connecting axle, and the inner termination of described connecting axle is connected on casing; In described, take turns by hollow shaft and be connected on tripod, in described hollow shaft, be provided with alignment pin, described casing side is provided with at least two dowel holes; Described crawler belt envelope described return pulley, on wheel and in take turns.
2. a kind of crawler-type draw-bar box according to claim 1, is characterized in that, described return pulley and on take turns between tangential length be greater than 40 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203198.4A CN103504750A (en) | 2012-06-19 | 2012-06-19 | Crawler draw-bar box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203198.4A CN103504750A (en) | 2012-06-19 | 2012-06-19 | Crawler draw-bar box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103504750A true CN103504750A (en) | 2014-01-15 |
Family
ID=49888592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210203198.4A Pending CN103504750A (en) | 2012-06-19 | 2012-06-19 | Crawler draw-bar box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103504750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110638170A (en) * | 2019-11-01 | 2020-01-03 | 邢台职业技术学院 | Draw-bar box convenient to climb stair |
| NL2027597B1 (en) * | 2021-02-19 | 2022-09-19 | Baas Invest B V | A suitcase |
| WO2024043777A1 (en) * | 2022-08-20 | 2024-02-29 | Baas Invest B.V. | A suitcase |
-
2012
- 2012-06-19 CN CN201210203198.4A patent/CN103504750A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110638170A (en) * | 2019-11-01 | 2020-01-03 | 邢台职业技术学院 | Draw-bar box convenient to climb stair |
| NL2027597B1 (en) * | 2021-02-19 | 2022-09-19 | Baas Invest B V | A suitcase |
| WO2024043777A1 (en) * | 2022-08-20 | 2024-02-29 | Baas Invest B.V. | A suitcase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |