CN2380210Y

CN2380210Y - Foldable crank structure

Info

Publication number: CN2380210Y
Application number: CN 99227845
Authority: CN
Inventors: 金才堂
Original assignee: SHAOXING HUAWEIMEI MEDICAL COMPLEMENT CO Ltd
Current assignee: SHAOXING HUAWEIMEI MEDICAL COMPLEMENT CO Ltd
Priority date: 1999-07-14
Filing date: 1999-07-14
Publication date: 2000-05-31
Anticipated expiration: 2009-07-14

Abstract

The utility model relates to a folding crank mechanism, which comprises a handle, a crank and a rocker. One end of the crank is fixedly connected with the rocker vertically; the rocker is composed of an inner tube and an outer tube which are retractable; the other end of the crank is connected with the handle by a folding crank handle; the folding crank handle can cause the crank and the handle to rotate within the range of 90 DEG to become folding. In addition, the handle is the extensible structure, and consequently, the utility model has simple, reasonable and compact structure, and convenient operation, and can not affect normal use of the mechanism.

Description

The folding crank structure

The utility model relates to a kind of connection rocking bar, the crank structure that rocking bar is rotated mainly is applicable to the crank structure that hand-rail type is regulated devices such as lathe bed height on the hospital bed, especially foldable crank structure.

Existing hand-rail type berth height-regulating device is used on existing hospital bed, and its structure is to drive a curved bar mechanism by a rocking bar to make lathe bed spread former times to move, and the other end of rocking bar connects a crank connecting link crank.Usually situation about using is, this crank connecting link crank is placed on the bottom of tailstock and exposes, and this not only influences the attractive in appearance of whole bed, but also make easily unmindful slightly pedestrian through and be bruised.

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and a kind of folding crank structure that crank can be stung gather into folds is provided.

The purpose of this utility model is finished by following technical solution, it mainly is made up of handle, crank and rocking bar, described crank one end fixedly connected a rocking bar, and crank becomes vertical configuration with rocking bar, the other end of crank can be rolled over handle by folding crank and be connected.

Rocking bar described in the utility model is the socket telescopic structure, and pipe constituted with the mutual socket of outer tube in it included, and the cross sectional shape of inner and outer pipes socket section is non-circular shape or identical non-circular shape.

Folding crank described in the utility model comprises that one is fixed in the contiguous block of handle end, and this contiguous block is plugged in the slot of offering crank round end end and with bearing pin and wears even.

Described handle is made up of handle connecting rod and handle hand guard glove, and hand guard glove is socketed in connecting rod outside, and is plugged on the hand guard glove and is embedded in the telescopic chute that is provided with on the connecting rod with bearing pin.

Description of drawings is as follows:

Fig. 1 is an expansion utilization structure sketch map of the present utility model.

Fig. 2 is this utility model crank folded state structural representation.

To be described in detail this utility model by accompanying drawing below: this utility model mainly is made up of handle 1, crank 2 and rocking bar 3.Rocking bar 3 is an inner and outer pipes socket telescopic structure, and it comprises pipe 4 and one outer tube 5 mutual sockets formations in, and the body cross sectional shape of interior pipe 4 and outer tube 5 is non-circular shape or identical non-circular shape, as ellipticity or oblong-shaped; Present embodiment is that interior pipe 4 is made symmetric planar slot 6, and on outer tube 5, be provided with bolt 7 and withstand on pipe 4 the planar slot 6, in making between pipe 4 and the outer tube 5 mutually retractility move, and can not relatively rotate, stretch realizing.The end of rocking bar 3 fixedly connected an end of crank 2, and crank 2 is fixed into vertical configuration with rocking bar 3, and the other end of crank 2 is connected with handle 1 by a folding crank 8.Described folding crank 8 comprises that one is fixed in the contiguous block 9 of handle 1 end, this contiguous block 9 is plugged in the slot of offering crank 2 round end ends and forms with bearing pin 10 companies of wearing, make handle 1 relative to crank 2 with bearing pin 10 be the center can do 90 the degree rotates, thereby the realization handle collapsible.When with handle 1 pull-up, 2 one-tenth vertical configurations of handle 1 and crank can be made, and when handle 1 is pressed, 2 one-tenth applying shapes of handle 1 and crank can be made again, state becomes to collapse.In order to reduce the volume of handle 1, handle 1 described in the utility model is made up of handle connecting rod 11 and handle hand guard glove 12, hand guard glove 12 is socketed in outside the connecting rod 11, and is plugged on the hand guard glove 12 and is embedded on the connecting rod 11 in the telescopic chute that is provided with bearing pin 13.As long as outwards draw back the length that hand guard glove 12 can prolong handle 1, add long handle 1 user can be used easily during use.

The lathe bed that the utility model not only can be used for hospital bed shakes in the lifting device, also can be used for other and shakes lifting device, tool Have simple and reasonable for structurely, compact, extremely easy to use, do not affect the normal use of mechanism, can not destroy mechanism Outward appearance U.S., the preferably characteristics such as practical value are arranged.

Claims

1, a kind of folding crank structure, it mainly is made up of handle, crank and rocking bar, it is characterized in that described crank (2) one ends fixedly connected a rocking bar (3), and crank (2) becomes vertical configuration with rocking bar (3), and the other end of crank (2) can be rolled over handle (1) by folding crank (8) and be connected.

2, folding crank structure as claimed in claim 1, it is characterized in that described rocking bar (3) is the socket telescopic structure, it includes interior pipe (4) and the mutual socket formation of outer tube (5), and the cross sectional shape of inner and outer pipes socket section is non-circular shape or identical non-circular shape.

3, folding crank structure as claimed in claim 1 or 2, it is characterized in that described folding crank (8) comprises that one is fixed in the contiguous block (9) of handle (1) end, this contiguous block (9) is plugged in the slot of offering crank (2) round end end also with bearing pin (10) company of wearing.

4, folding crank structure as claimed in claim 3, it is characterized in that described handle (1) is made up of handle connecting rod (11) and handle hand guard glove (12), hand guard glove (12) is socketed in connecting rod (11) outside, and is plugged on hand guard glove (12) with bearing pin (13) and goes up and be embedded in connecting rod (11) and go up in the telescopic chute of setting.