CN201001819Y

CN201001819Y - Hoof-block set for wheelchair expanding brake

Info

Publication number: CN201001819Y
Application number: CNU2007200342926U
Authority: CN
Inventors: 孙浙勇; 孙胜峰; 刘新振; 鲁荣喜; 肖月林; 肖春
Original assignee: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO Ltd
Current assignee: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO Ltd
Priority date: 2007-02-06
Filing date: 2007-02-06
Publication date: 2008-01-09
Anticipated expiration: 2017-02-06

Abstract

A hoof block group for the wheelchair expansion brake relates to the hoof block group used in the wheelchair expansion brake. The hoof block group (10) comprises a rubbing strip (1), a fixing piece (2), a connecting piece rivet (3), a right hoof (4), connecting pieces (5), a left hoof (6), a fixed core (7) and a flat pad (8). The right hoof (4) and the left hoof (6) are respectively riveted with the connecting pieces (5), are positioned on the fixed core (7) and inserted and welded into the fixing piece (2), and the rubbing strip (1) is bonded to the fixing piece (2). The right hoof (4) and the left hoof (6) of the hoof block group (10) are provided with the connecting pieces (5) simultaneously. When the bidirectional camshaft rotates, the left hoof (6) and the right hoof (4) are pushed open at the same time.

Description

Wheelchair rises by lock with hoof piece group

Technical field:

This utility model wheelchair lock that rises relates to hoof piece group be installed in the hoof piece group of using in the lock that rises on wheelchair.

Background technology:

The cam of internal expanding servant brake in the past only promotes a contact pin on the hoof piece group when rotating, make a hoof piece spreading, another hoof piece is followed spreading, friction plate on two shoe plates is rubbed mutually with the brake disc inwall, to reach the purpose of skidding,, then on left shoe plate and right shoe plate, all need rivet contact pin if in wheelchair rises by lock, adopt the bidirectional cam axle, rub mutually with the brake disc inwall simultaneously so that reach the friction plate that makes on the left and right shoe plate, thereby will redesign new hoof piece group.

Summary of the invention:

The purpose of this utility model provides a kind of wheelchair and rises by lock with hoof piece group, each riveted joint has contact pin on left and right shoe plate, the core hole of deciding of left and right shoe plate is installed in and decides on the core cylinder, the outer projection of left and right shoe plate inserts and is welded in the stator groove, friction plate is bonded on the stator, constitutes hoof piece group single piece.

A kind of wheelchair rises by lock with hoof piece group, hoof piece group (10) by friction plate (1), stator (2), tab rivet (3), right shoe plate (4), contact pin (5), left shoe plate (6), decide core (7), plain cushion (8) is formed, and it is characterized in that on right shoe plate (4) and left shoe plate (6) riveted joint has contact pin (5) respectively; Right shoe plate (4) and left shoe plate (6) are installed in to be decided on the core (7); Right shoe plate (4) and left shoe plate (6) insert and are welded in the stator (2), and friction plate (1) is bonded on the stator (2).

This utility model wheelchair lock that rises is described as follows with the operation principle of hoof piece group:

Each riveted joint of the two ends of hoof piece group has a contact pin, on crank throw, stop line when pulled, then crank throw drives bidirectional cam axle rotation mounted thereto, the bidirectional cam axle promotes the contact pin on the left and right shoe plate simultaneously, left and right shoe plate is opened simultaneously, the friction plate that then is fixed on the left and right shoe plate of deciding on the core rubs mutually with the brake disc inwall simultaneously, makes the wheel of wheelchair obtain braking.

Now this wheelchair lock that rises is described as follows with the structure of hoof piece group:

On the rectangle end face of left shoe plate and right shoe plate, respectively rivet a contact pin respectively, and the core hole of deciding of left shoe plate and right shoe plate all is installed on the cylinder of deciding core, and the following end mill side that decides core is installed in the rectangular channel of housing fixing head, deciding on the screw thread of core acorn nut to be installed, add plain cushion in the upper end of deciding core, deciding also to be milled with the side of milling below the cylinder of core, so that avoid the U-shaped spring of installation in the fuse-box.

On left shoe plate and right shoe plate, have contact pin riveted holes and O type spring mounting hole,, and the two ends of O type spring are installed in respectively in the O type spring mounting hole so that rivet contact pin by rivet respectively; Each punching press has one section evagination reinforcement respectively on left shoe plate and right shoe plate, so that increase the intensity of left shoe plate and right shoe plate; Projection outside some is respectively arranged respectively on left shoe plate and right shoe plate,, weld mutually, outside stator, be bonded with friction plate respectively with stator so that be inserted in respectively in the groove of stator.

This wheelchair lock that rises is respectively to add contact pin on left shoe plate and right shoe plate simultaneously with the advantage of hoof piece group, when the bidirectional cam axle rotates, left shoe plate and right shoe plate are pushed simultaneously open, the friction plate of both sides can be rubbed with the brake disc inwall simultaneously mutually, realize reliable skidding.

Description of drawings:

Fig. 1: for the wheelchair lock that rises shows the schematic three dimensional views that is positioned at the right side with two contact pin (5) of hoof piece group (10).

Fig. 2: for the wheelchair lock that rises shows the schematic three dimensional views that is positioned at the left side with two contact pin (5) of hoof piece group (10).

Fig. 3: for the wheelchair lock that rises is looked sketch map with the master of hoof piece group (10).

Fig. 4: for wheelchair rise lock with hoof piece group (10) schematic side view.

Fig. 5: for wheelchair rise lock with hoof piece group (10) schematic top plan view.

Fig. 6: decide core (7) schematic three dimensional views.

Fig. 7: the main sketch map of looking of left shoe plate (6).

Fig. 8: the main sketch map of looking of right shoe plate (4).

The specific embodiment:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, among each figure: (1) is friction plate, and (2) are stator, and (3) are tab rivet, (4) be right shoe plate, (5) are contact pin, and (6) are left shoe plate, and (7) are for deciding core, (8) be plain cushion, (9) are O type spring eye, and (10) are hoof piece group.

This wheelchair lock that rises is described as follows with the concrete enforcement structure of hoof piece group (10):

As shown in Figure 1 and Figure 2: on right shoe plate (4), left shoe plate (6), by tab rivet (3) riveted joint contact pin (5) is arranged respectively, an O shape spring eye (9) is arranged, so that O shape spring is installed at right shoe plate (4) and left shoe plate (6) Shang Gechong.

Referring to Fig. 3, Fig. 4, Fig. 5, the core hole (16) of deciding of deciding core hole (20) and left shoe plate (6) of right shoe plate (4) is installed in respectively on the cylinder (14) of deciding core (7), between the rivet of deciding core (7) top and left shoe plate (6), add plain cushion (8), so that it is riveted tightly.

As shown in Figure 8, right shoe plate (4) upper punch be pressed with evagination reinforcement (21) and outside projection (22); As shown in Figure 7, left shoe plate (6) upper punch be pressed with evagination reinforcement (17) and outside projection (18), so that strengthen the intensity of right shoe plate (4), left shoe plate (6) respectively, and right shoe plate (4), left shoe plate (6) can be inserted in separately stator (2) groove weld, outside two stators (2), respectively be stained with friction plate (1), it can be rubbed with the brake disc inwall respectively mutually.

Referring to Fig. 6, in the cylinder of deciding core (7) (14) bottom a bigger side of milling (11) is arranged, be used for avoiding the installation site of O shape spring in fuse-box; Screw thread (13) is arranged deciding core (7) lower end car,, make and decide core (7) and be installed on the housing of the lock that rises so that acorn nut is installed.

Claims

1, a kind of wheelchair rises by lock with hoof piece group, hoof piece group (10) by friction plate (1), stator (2), tab rivet (3), right shoe plate (4), contact pin (5), left shoe plate (6), decide core (7), plain cushion (8) is formed, and it is characterized in that on right shoe plate (4) and left shoe plate (6) riveted joint has contact pin (5) respectively; Right shoe plate (4) and left shoe plate (6) are installed in to be decided on the core (7); Right shoe plate (4) and left shoe plate (6) insert and are welded in the stator (2), and friction plate (1) is bonded on the stator (2).

2, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that by tab rivet (3) riveted joint contact pin (5) being arranged respectively on right shoe plate (4) and left shoe plate (6).

3, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that on right shoe plate (4) and left shoe plate (6) respectively respectively towards an O shape spring eye (9) is arranged.

4, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that the core of deciding hole (20) being arranged in right shoe plate (4) upper punch, in left shoe plate (6) upper punch the core of deciding hole (16) is arranged, decide core hole (20) and decide core hole (16) to be installed in respectively on the cylinder (14) of deciding core (7).

5, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that adding plain cushion (8) between the rivet of deciding core (7) top and left shoe plate (6).

6, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that right shoe plate (4) upper punch be pressed with evagination reinforcement (21) and outside projection (22), left shoe plate (6) upper punch be pressed with evagination reinforcement (17) and outside projection (18).

7, a kind of wheelchair according to claim 1 rises by lock with hoof piece group, it is characterized in that in the cylinder of deciding core (7) (14) bottom the side of milling (11) being arranged; Screw thread (13) is arranged deciding core (7) lower end car.