CN2543801Y

CN2543801Y - Foldable chair type hand-driven six-wheel stair-climbing trolley

Info

Publication number: CN2543801Y
Application number: CN 02234185
Authority: CN
Inventors: 徐敏; 赵华华; 李曼硕; 徐朱龙; 陈莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-18
Filing date: 2002-05-18
Publication date: 2003-04-09
Anticipated expiration: 2012-05-18

Abstract

The utility model relates to a foldable chair type hand-driven six-wheel stair-climbing trolley which belongs to the manufacturing technical field of a hand-driven vehicle used as a foldable chair frame. The stair-climbing trolley comprises a bottom band main shaft(6), a triangular rack(5) and the vehicle frame of a vehicle wheel(4). Wherein, the vehicle frame comprises an upper vehicle frame(9), the middle vehicle frame(11) with a chair board, and also a lower vehicle frame. The upper and the middle vehicle frames, the middle and the lower vehicle frames are fixedly connected together through a fastening unit(2). When in use, the upper and the middle as well as lower vehicle frames are pulled straight and fixed by the fastening unit so as to arranged a gas-jar or relatively heavy articles onto the vehicle frames and climb up to the stair with hands pulling the handles on the top parts of the vehicle frames. The vehicle wheels on the triangle racks at the bottom of the vehicle frames can rotate upward respectively along the stair steps, finishing transferring operation. When needed to be used as a foldable chair, the fastening unit is loosed to fold up the upper, the middle and the lower vehicle frames; thereby, the top end of the upper vehicle frame lands on the ground and then is fastened by the fastening unit to form the foldable chair. The utility model has the advantages of reasonable design, simple and smart overall structure, as well as convenient and flexible comprehensive application.

Description

Folding chair form six is taken turns and is pulled the cat ladder car

Technical field

The utility model relates to a kind of folding chair form six takes turns and pulls the cat ladder car, belongs to the hand barrow manufacturing technology field that can folded deformation becomes chair to use.

Background technology

Existing city floor resident family is transporting gas-jar and than heavy articles, or AT STATION, when harbour, road overline bridge and genuine ladder are carried luggage, mostly adopt pickaback portablely, bring inconvenience when up/down steps, and safety is also relatively poor.And the existing cart structure that pulls is single, and range of use is narrower.

Summary of the invention

The purpose of this utility model provides a kind of reasonable in design, but easily stair activity again the folding chair form six that uses of double as folded seat take turns and pull the cat ladder car.

The utility model is taken turns for folding chair form six and is pulled the cat ladder car, the vehicle frame that comprises bottom band main shaft, place the spider at main shaft two ends, place the wheel on the spider, it is characterized in that described vehicle frame by last vehicle frame, the middle vehicle frame of band chair plate, formations such as following vehicle frame, captive joint by fastener with the middle part or the top of following vehicle frame with the bottom of the top of middle vehicle frame, middle vehicle frame in described bottom of going up vehicle frame, the described bottom of vehicle frame down places on the main shaft.During use, the upper, middle and lower vehicle frame is stretching and fix with fastener, gas-jar or heavier article are placed on the vehicle frame, climb up stair with pulling the vehicle frame top, the wheel on the bottom of frame spider can scroll up along stairway step successively, finishes carrying; When need are made folded seat and are used, loosening fasteners, with the upper, middle and lower vehicle frame folding, the top of vehicle frame is landed and with fastener fix folded seat.

Described middle part of going up vehicle frame also can be provided with the crosspiece of band suspension hook.Also can be provided with carriage on the vehicle frame under described.Also can be provided with on the described carriage and have contact with.Also can be provided with a grade bar on the vehicle frame under described.

Described fastener can be made of the screw bolt and nut of band spring chair.

The utility model compared with prior art has following outstanding advantage and good effect:

1. three of bottom of frame pairs of well-distributed wheels can roll along level in the path of motion of stair or other step upper edge arc line types successively, efficiently solve the problem that hand buggy is climbed step, and the wheel flexibility and reliability.

2. by last vehicle frame, middle vehicle frame, the body frame structure for automotive that constitutes of vehicle frame and fastener down, make that of the present utility model folding to change shape simple, can make chair behind the folded deformation and use, alleviate user's fatigue during the journey, can dwindle taking up room again, easy to carry.

3. the setting of the strut rail of band suspension hook and the carriage that has contact with of band can make gas-jar or more firmly is placed on the vehicle frame than heavy articles, has improved Transport Safety, when folding simultaneously, can be buckled on the crosspiece having contact with, and folded seat is made further positioning and fixing.

4. fastener is selected the bolt and the wing nut of band thin type spring chair for use, makes it fixed, and during clamp nut without instrument.

The utility model is reasonable in design, the terminal with compact integral structure dexterity is applicable to that city floor resident family transports gas-jar or than heavy articles, and AT STATION, harbour, road overline bridge and genuine ladder carry luggage, and double as uses when folded seat in tourism, and comprehensive application is convenient, flexible.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Structural representation when Fig. 2 is the utility model folded state.

The specific embodiment

The utility model mainly by the vehicle frame of band main shaft 6, place the main shaft two ends spider 5, place three pairs of wheels 4 on the spider 5 etc. to constitute.Vehicle frame is made of last vehicle frame 9, the middle vehicle frame 11 of band chair plate 1, following vehicle frame 12 etc., last vehicle frame 9 is provided with the crosspiece 13 of band suspension hook 10, following vehicle frame 12 is provided with grade bar 7 and band has contact with 3 carriage 8, the bottom of last vehicle frame 9 uses the fastener 2 that is made of the screw bolt and nut of being with spring chair to captive joint with the top of middle vehicle frame 11, the bottom of middle vehicle frame 11 respectively with the middle part or the top of following vehicle frame 12, and the bottom of following vehicle frame 12 places on the main shaft 6.

When being used as the use of cat ladder car, to go up vehicle frame 9, middle vehicle frame 11, descend vehicle frame 12 to pull into straight line, and tighten four pairs of nuts on the fastener 2 respectively, cat ladder car (as shown in Figure 1), carriage 8 was put on blend stop 7 and was used as luggage carrier this moment, gas-jar or baggages are placed on the vehicle frame, its top is fixing with suspension hook 10, the bottom rests on the carriage 8, the user grasps vehicle frame 9 tops, along upwards pulling of stairway step, three pairs of wheels 4 are scrolled up along one-level level step successively, thereby finish whole transportation., then there are two pairs of wheel 4 kiss the earths to roll and advance when the level walking as the cat ladder car.

When being used as the folded seat use, unclamp earlier four pairs of nuts on the fastener 2 respectively, it is folding downwards to go up vehicle frame 9, its upper end is landed, and having contact with of carriage 8 tops 3 be buckled on the crosspiece 13, chair plate 1 in this moment on the vehicle frame 11 just in time is horizontal, again the nut screwing clamping on four pairs of fasteners 2 is fixed, folded seat.

Claims

1. a folding chair form six is taken turns and is pulled the cat ladder car, the vehicle frame that comprises bottom band main shaft (6), place the spider (5) at main shaft two ends, place the wheel (4) on the spider (5), it is characterized in that described vehicle frame is by last vehicle frame (9), the middle vehicle frame (11) of band chair plate (1), following vehicle frame (12) constitutes, captive joint by fastener (2) with the middle part or the top of following vehicle frame (12) with the bottom of the top of middle vehicle frame (11), middle vehicle frame (11) in described bottom of going up vehicle frame (9), the described bottom of vehicle frame (12) down places on the main shaft (6).

2. take turns by the described folding chair form six of claim 1 and pull the cat ladder car, it is characterized in that described middle part of going up vehicle frame (9) also can be provided with the crosspiece (13) of band suspension hook (10).

3. take turns by the described folding chair form six of claim 1 and pull the cat ladder car, it is characterized in that also can being provided with carriage (8) on the described following vehicle frame (12).

4. take turns by claim 1 or 3 described folding chair forms six and pull the cat ladder car, it is characterized in that also can being provided with on the described carriage (8) and have contact with (3).

5. take turns by claim 1 or 3 described folding chair forms six and pull the cat ladder car, it is characterized in that also can being provided with a grade bar (7) on the described following vehicle frame (12).

6. take turns by the described folding chair form six of claim 1 and pull the cat ladder car, it is characterized in that described fastener (2) can be made of the screw bolt and nut with slim spring chair.