CN202106803U

CN202106803U - Multi-system brake hardware medical caster

Info

Publication number: CN202106803U
Application number: CN201120228979XU
Authority: CN
Inventors: 李有枝
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-30
Filing date: 2011-06-30
Publication date: 2012-01-11
Anticipated expiration: 2021-06-30

Abstract

The utility model discloses a multi-system brake hardware medical caster which comprises a mounting insert rod, a cam, a special-shaped nut, a spring, a ball bearing, a brake fluted disc, a bracket, a brake tooth accessory, screws, a wheel and an axle, and is characterized in that the cam is provided with three control gears, namely a directional gear, a freely rotating gear and a complete brake gear; the special-shaped nut is provided with an special-shaped bulge which is matched with the concave-convex surfaces of the three control gears of the cam; the special-shaped nut is further connected with the brake fluted disc into a whole; and a cross positioning bulge is further formed on the shaft lever of the brake fluted disc and matched with clamping position of the cross-shaped groove of the inner hole of the bracket. The multi-system brake hardware medical caster has the benefits as follows: due to the adoption of the connecting rod brake structure that the cam is matched with the spring, as well as the high probability of inosculation of a triangular tooth, directional or universal moving as well as flexible switching of the brake can be achieved.

Description

A kind of multi-standard brake five metals medical treatment castor

Technical field

The utility model belongs to the hardware machinery accessory, relates to a kind of castor, especially a kind of multi-standard brake five metals medical treatment castor.

Background technology

Castor is a kind of common mechanical Hardware fitting, and the footing that is installed in furniture, go-cart, mechanical equipment, medical bed etc. usually to be making things convenient for moving of object, when movement of objects behind the destination, need make the castor braking.The major defect that existing in the market brake type castor exists is: the one, generally adopt the two-orbit roll structure at the installation end of object footing and castor, when moving noise greatly, turn to dumb; The 2nd, brake structure is unstable, and brake is incomplete, and long-term use causes braking quality unstable easily, causes realizing drag; The 3rd, can not convert cardan wheel into directional wheel and use, can not let object convert directed straight line into and move by universal moving.

Summary of the invention

The development purpose of the utility model is to overcome the defective that existing product exists, and a kind of low noise is provided, and braking, starts flexibly, can realize the directed or universal multi-standard brake five metals medical treatment castor that moves with the brake flexible conversion

A kind of multi-standard brake five metals medical treatment castor of the utility model; Comprise inserted link, cam, abnormity nut, spring, ball bearing of main shaft, brake fluted disc, support, brake tooth annex, screw, wheel, wheel shaft are installed; It is characterized in that: described cam has three control gears, promptly directed shelves, freely rotates shelves, brake grade entirely; Described abnormity nut has protruding three male and fomale(M&F)s of controlling gears with cam of abnormity and adapts; Abnormity nut also connects as one with the brake fluted disc; Also have the criss-cross positioning convex on the axostylus axostyle of described brake fluted disc, and adapt with the cross groove screens of support endoporus.

Described cam also is connected with exterior brake rod.

A spring is also placed in described abnormity nut lower end.

Described brake fluted disc also cooperates with brake tooth annex through the triangle flank of tooth that coincide each other, and the tooth annex that brakes simultaneously flexibly connects through screw and brake fluted disc, also places a spring between brake tooth annex and the brake fluted disc.

The beneficial effect of the utility model is: the connecting rod brake structure that adopts cam to match with spring, and lance tooth is easy to the characteristic of coincideing, and can realize directed or universal moving and the flexible conversion of braking; The connecting rod brake structure that adopts cam to match with spring makes through the brake fluted disc that inserted link is installed is static relatively with support, reaches to convert universal moving into orientation mobile purpose.

Description of drawings

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

Fig. 2 is the brake rod scheme of installation;

Fig. 3 is a cam work positional structure scheme drawing;

Fig. 4 is a brake fluted disc structural representation;

Fig. 5 is the brake birds-eye view of fluted disc of Fig. 4;

Fig. 6 is the supporting structure scheme drawing;

Fig. 7 is the birds-eye view of Fig. 6 supporting structure;

Fig. 8 is a brake tooth accessory structure scheme drawing;

Fig. 9 is the birds-eye view of brake tooth accessory structure.

Among the figure: 1-installs inserted link; The 2-cam; The 3-abnormity nut; The 4-spring; The 5-ball bearing of main shaft; The 6-fluted disc that brakes; The 7-support; The 8-spring; 9-brake tooth annex; The 10-screw; The 11-wheel; The 12-ball bearing of main shaft; The 13-wheel shaft; The 14-brake rod.

The specific embodiment

Do further to set forth with regard to the specific embodiment of the utility model below in conjunction with description of drawings; Shown in Fig. 1-9: a kind of multi-standard brake five metals medical treatment castor of the utility model; Comprise inserted link, cam, abnormity nut, spring, ball bearing of main shaft, brake fluted disc, support, brake shoes, screw, wheel, wheel shaft are installed; It is characterized in that: described cam 2 has three control gears, promptly directed shelves B, freely rotates a shelves A, grade C that brakes entirely; Described abnormity nut 3 has protruding three male and fomale(M&F)s of controlling gears with cam 2 of abnormity and adapts; Abnormity nut 3 also connects as one with brake fluted disc 6; Also have the criss-cross positioning convex on the axostylus axostyle of described brake fluted disc 6, and adapt with the cross groove screens of support 7 endoporus.

Described cam 2 also is connected with exterior brake rod.

A spring 4 is also placed in described abnormity nut 3 lower ends.

Described brake fluted disc 6 cooperates for sliding up and down with installing between the inserted link 1, can not relatively rotate.

Described brake fluted disc 6 also cooperates with brake tooth annex 9 through the triangle flank of tooth that coincide each other, and the tooth annex 9 that brakes simultaneously flexibly connects through screw 10 and brake fluted disc 6, also places a spring 8 between brake tooth annex 9 and the brake fluted disc 6.

The principle of work that the utility model is realized is: exterior brake rod connection matches with cam 2; When outside brake rod connection rotation made cam 2 be in the A position, this state was an active state, and is gapped between brake fluted disc 6 and support 7, brake fluted disc 6 and the brake tooth annex 9; Do not interfere mutually; Brake fluted disc 6 can freely rotate around axis, and wheel 11 does not interfere with brake tooth annex 9, can freely rotate around wheel shaft 13; Rotate when making that the B position rotates to axis centre in the cam 2 when outside brake rod connects, this state is the direction state of stopping, abnormity nut 3 captive joint with the fluted disc 6 that brakes do as a whole; Under the effect of spring 4, up push up; Abnormity nut 3 triangle round ends contact with the concave surface of B position in the cam 2, rotate under the directional tagging through support 7, also have the criss-cross positioning convex on brake fluted disc 6 axostylus axostyles; And adapt with the cross groove screens of support 7 endoporus; Promptly produce directional tagging, support 7 universal rotations are ineffective, and castor can only be by directed straight line moving; Rotate when making that the C position rotates to axis centre in the cam 2 when outside brake rod connects, this state is full braking state, and cam 2 is just crossed the peak; Cam 2 is just abnormity nut 3 pressed downward like this; Abnormity nut 3 is captiveed joint and is done as a whole pressing down with brake fluted disc 6, and brake fluted disc 6 matches with brake tooth annex 9, and brake tooth annex 9 contacts with wheel face under the pressurized effect; Push down wheel 11, promptly reach and check the effect that wheel 11 is checked direction again.Through outside brake rod 14 connect rotating cams 2 can make castor at directed shelves B, freely rotates a shelves A, grade three kinds of different gears of C that brake switch each other entirely.

Claims

1. multi-standard brake five metals medical treatment castor; Comprise inserted link, cam, abnormity nut, spring, ball bearing of main shaft, brake fluted disc, support, brake tooth annex, screw, wheel, wheel shaft are installed; It is characterized in that: described cam has three control gears, promptly directed shelves, freely rotates shelves, brake grade entirely; Described abnormity nut has protruding three male and fomale(M&F)s of controlling gears with cam of abnormity and adapts; Abnormity nut also connects as one with the brake fluted disc; Also have the criss-cross positioning convex on the axostylus axostyle of described brake fluted disc, and adapt with the cross groove screens of support endoporus.

2. a kind of multi-standard brake five metals medical treatment castor according to claim 1, it is characterized in that: described cam also is connected with exterior brake rod.

3. a kind of multi-standard brake five metals medical treatment castor according to claim 1, it is characterized in that: a spring is also placed in described abnormity nut lower end.

4. a kind of multi-standard brake five metals medical treatment castor according to claim 1; It is characterized in that: described brake fluted disc also cooperates with brake tooth annex through the triangle flank of tooth that coincide each other; The tooth annex that brakes simultaneously flexibly connects through screw and brake fluted disc, also places a spring between brake tooth annex and the brake fluted disc.