CN201484068U

CN201484068U - Side braking device for pulley

Info

Publication number: CN201484068U
Application number: CN2009201573202U
Authority: CN
Inventors: 陈朝根
Original assignee: TAIHUA FURNITURE CO Ltd
Current assignee: TAIHUA FURNITURE CO Ltd; Tay Huah Furniture Corp
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2010-05-26
Anticipated expiration: 2019-05-26

Abstract

The utility model discloses a side braking device for a pulley, which comprises a main body part, a wheel axle connected with the side direction of the main body part, the pulley arranged on the wheel axle, and a drive part. The corresponding positions of the main body and the pulley are provided with a braking part respectively; the drive part is used for matching with the pulley so that the braking part of the pulley is driven to the braking part of the main body part in a rotational mode; and after the two braking parts are connected, the pulley is locked not to rotate.

Description

Pulley side is to brake equipment

Technical field

The relevant a kind of brake equipment of the utility model, particularly a kind of brake equipment that makes pulley generation locking with the side direction rotation mode.

Background technology

Move for example objects such as table, chair for convenience, thereunder assembling pulley is a kind of habitual technology; But it is motionless to wish again that sometimes object is fixed, and will assemble brake equipment on pulley and be compensated.

With the pulley brake equipment of general table, chair, normally set up brake shoe on the surface of pulley, pulley is locked motionless by manually making brake shoe and pulley surface produce friction; But consider that brake shoe easily causes the abrasion of pulley surface to make it unsmooth, can cause bad influence, the essentiality of its improvement is arranged in the future use.

The utility model content

In view of this, main purpose of the present utility model is to provide a kind of pulley surface pulley side impaired and easy and simple to handle that can prevent to brake equipment.

For achieving the above object, the pulley side that the utility model provides is to brake equipment, comprise main part, main part is connected in the object that will assemble pulley, the side direction of main part has the sleeve and first detent, and this first detent is corresponding to pulley, and the outer cover of sleeve is connected to spring, the inside of sleeve then is penetrated with the wheel shaft that can locate pulley, and the end of this wheel shaft extends to the outside of sleeve; Be assemblied in the pulley on the wheel shaft, pulley has the centre hole for the wheel shaft socket, and the side direction of centre hole is provided with second detent towards first detent of main part; And drive division, described drive division is compatible with the outside of pulley, in order to cooperating with pulley, makes second detent of pulley drive first detent to main part by rotary driving part, links back locking pulleys two detent and is not rotation.

To brake equipment, utilize this lateral braking mode can reach the effect that makes pulley surface no longer impaired by pulley side of the present utility model, and easy and simple to handle.

Description of drawings

Fig. 1 is the exploded drawings of the utility model pulley side to brake equipment;

Fig. 2 is the combination stereogram of the utility model pulley side to brake equipment;

Fig. 3 be the utility model pulley side to operation of braking means figure, this figure shows the lock-out state of pulley;

Fig. 3-1 is the auxiliary view of Fig. 3, and this figure shows the relative position of pressure section and ramp;

Fig. 4 be the utility model pulley side to operation of braking means figure, this figure shows the pulley state that unlocks;

Fig. 4-1 is the auxiliary view of Fig. 4, and this figure shows the relative position of pressure section and ramp.

Description of reference numerals

Main part 1 sleeve 10

First detent, 11 ratchets 110

Spring 12 wheel shafts 13

Bolt 130,131

Table pin 2

Pulley 3 centre holes 30

Second detent, 31 double wedges 310

The opposite side 3a groove 32 of pulley

The block 3b ramp 33,33 ' of pulley

Par 330,330 ' first stop section 331,331 '

Second stop section, 332,332 ' reference position 333,333 '

Pulley 4

Drive division 5 concave arcs 50

Pressure section 51,51 '

The specific embodiment

As shown in Figures 1 and 2, pulley side of the present utility model comprises to brake equipment:

Main part 1, this main part 1 is connected in the object that will assemble pulley, for example is connected in the below of a pin 2; The side direction of main part 1 has the sleeve 10 and first detent 11, this first detent 11 is corresponding to pulley 3, the outer cover of sleeve 10 is connected to spring 12, the inside of sleeve 10 then is penetrated with wheel shaft 13, and the end of wheel shaft 13 extends to the outside of sleeve 10, and wheel shaft 13 is respectively by bolt 130,131 location pulleys 3,4, make pulley 3,4 on wheel shaft 13, present rotatable state.Described first detent 11 is made of two or more bevelled ratchets 110, and it arranges the rounded periphery that is looped around aforementioned sleeve 10 continuously.

Be assemblied in the pulley 3 on the wheel shaft 13,4, pulley 3 has centre hole 30 for aforementioned wheel shaft 13 sockets, the side direction of this centre hole 30 is provided with second detent 31 towards first detent 11 of aforementioned main part 1, described second detent 31 relative with first detent 11 is made of the circular arc double wedge 310 that two or more have predetermined space, its continued circling is in the periphery of centre hole 30, and corresponding with aforementioned first detent 11, first detent 11 can be meshing with each other when contacting with second detent 31.With respect to the opposite side 3a of the pulley 3 of second detent 31, the periphery of centre hole 30 is provided with annular groove 32, and annular groove 32 can compatible drive division 5 described later, and provides drive division 5 to be rotated motion at this; In the block 3b of the pulley 3 that is surrounded by annular groove 32, at least be provided with the ramp 33 of relative centre hole 30 radial positions, has par 330 in the extreme higher position of ramp 33, be defined as destination locations, the terminal of described par 330 has first stop section 331, be provided with second stop section 332 in adjacent slopes road 33 extreme lower positions, between second stop section 332 and ramp 33 extreme lower positions, be defined as reference position 333; The better one, as shown in Figure 1, be provided with another ramp 33 ' with ramp 33 symmetries in the subtend position of ramp 33, has par 330 ' in the extreme higher position of this another ramp 33 ' equally, be defined as destination locations, the terminal of described par 330 ' has first stop section 331 ', be provided with second stop section 332 ' in adjacent this another ramp 33 ' extreme lower position, between second stop section 332 ' and this another ramp 33 ' extreme lower position, be defined as reference position 333 ', the configuration of described two ramps 33,33 ' cooperates with drive division 5 described later.

Drive division 5, described drive division 5 is compatible with the outside of aforementioned pulley 3, promptly drive division 5 is compatible with the annular groove 32 of pulley 3, and can be in described annular groove 32 rotary moveable.The outside of drive division 5 is provided with concave arc 50 at interval, is beneficial to user's hand-held; The reference position 333 of the inboard corresponding aforementioned pulley 3 of drive division 5,333 ', respectively be provided with a pressure section 51,51 ', when described drive division 5 is driven in rotation, this pressure section 51,51 ' can cooperate with the ramp 33,33 ' of aforementioned pulley 3, certainly this ramp 33,33 ' extreme lower position crawls into the extreme higher position and stops to being subjected to first stop section 331,331 '.

By rotary driving part 5, make second detent 31 of pulley 3 drive first detent 11 to main part 1, link back locking pulleys 3 for rotating two detent, the operating state that relevant the utility model is concrete, please also refer to Fig. 3, Fig. 3-1 and Fig. 4, Fig. 4-1 figure.Shown in Fig. 3 and Fig. 3-1, if will make pulley 3 lockings that are installed on the pin 2 motionless, as long as rotation is installed on the drive division 5 of pulley 3, the pressure section 51,51 ' of borrowing drive division 5 is respectively from the reference position 333 of pulley 3 definition, 333 ' from ramp 33,33 ' extreme lower position rises to the par 330,330 ' of extreme higher position, just described destination locations, be hampered by first stop section 331,331 ' at last and stop; By described ramp 33,33 ' diff-H orders about second detent 31 of pulley 3 and advances towards first detent, 11 directions of main part 1, and compression spring 12, finally make second detent 31 and first detent 11 link (as engagement), force pulley 3 locked motionless.

If will remove the locking of pulley 3, please refer to Fig. 4 and Fig. 4-1, as long as contrarotation drive division 5 makes pressure section 51,51 ' breaks away from ramp 33,33 ' par 330,330 ' (destination locations just), this pressure-formed power is removed, and cooperate the latch-release of the response force of spring 12 with first detent 11 and second detent 31, take advantage of a situation from ramp 33 with seasonal pressure section 51,51 ', 33 ' landing is to reference position 333,333 ', finally be subjected to stopping of second stop section 332,332 ' and stop.

In aforementioned, the pressure section 51,51 ' of symmetry can help the operation of pulley 3 brakings more stable with the design of ramp 33,33 ' each other, is not in order to limit enforcement of the present utility model.

The above only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; the equivalence that every people who is familiar with the utility model skill does according to spirit of the present utility model is modified or is changed, and all should be covered by in the claim scope of the present utility model.

Claims

1. a pulley side is characterized in that to brake equipment it comprises:

Main part, described main part is connected in the object that will assemble pulley, the side direction of described main part has the sleeve and first detent, this first detent is corresponding to described pulley, the outer cover of described sleeve is connected to spring, the inside of described sleeve then is penetrated with the wheel shaft that can locate described pulley, and the end of this wheel shaft extends to the outside of described sleeve;

Be assemblied in the pulley on the described wheel shaft, described pulley has the centre hole for described wheel shaft socket, and the side direction of described centre hole is provided with second detent towards described first detent of described main part; And

Make second detent of described pulley drive first detent to described main part by rotation, link the drive division for rotating of back locking pulley in described first detent and described second detent, described drive division is compatible with the outside of described pulley.

2. pulley side as claimed in claim 1 is to brake equipment, it is characterized in that, the periphery in described pulley center hole is provided with the annular groove of compatible described drive division, in the pulley block that is surrounded by described annular groove, at least be provided with the ramp of a described relatively centre hole radial position, has the par that is defined as destination locations in the extreme higher position of described ramp, the terminal of described par has first stop section, be provided with second stop section in adjacent described ramp extreme lower position, between described second stop section and described ramp extreme lower position, be defined as reference position; The inboard corresponding described reference position of stating pulley of described drive division is provided with the pressure section, and this pressure section cooperates with described ramp.

3. pulley side as claimed in claim 1 or 2 is to brake equipment, it is characterized in that, described first detent is made of two or more bevelled ratchets, this ratchet is arranged the rounded periphery that is looped around described sleeve continuously, described second detent relative with described first detent has circular arc double wedge at interval by two or more and constituted, and described first detent can be meshing with each other when contacting with described second detent.

4. pulley side as claimed in claim 1 or 2 is characterized in that to brake equipment the outside of described drive division is provided with concave arc at interval.