CN2361912Y

CN2361912Y - Expansion door pulley

Info

Publication number: CN2361912Y
Application number: CN 98246979
Authority: CN
Inventors: 黄友生
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-10
Filing date: 1998-12-10
Publication date: 2000-02-02
Anticipated expiration: 2008-12-10

Abstract

The utility model relates to a telescopic door slide wheel comprising two wheel hubs and two webs, wherein, the two wheel hubs are butted into a wheel spoke with a V-shaped wheel grooves; the two webs are respectively fixed on both sides of the wheel spoke and the centers of the webs are provided with through holes through which a wheel shaft can be penetrated. Due to the adoption of a structure that the integral slide wheel connected up by plates through cold-working and stamping treatments, the utility model reduces the machining allowance of a slide wheel assembly with less material consumption, effectively reduces the self weight of the slide wheel, has the advantages of low cost, simple and convenient manufacture process for the slide wheel, high productive efficiency, high machining precision and better electroplated fineness and can be used for various rail-mounted telescopic doors.

Description

A kind of retractable door pulley

The utility model relates to the pulley that a kind of pulley, particularly retractable door are used.

Existing rail formula retractable door pulley generally adopts cast member to make by working procedure processing such as turning, plating, and the cast member pulley turning machining allowance of this structure is big, and consumptive material is many, and the pulley deadweight that single-piece is made increases the cost height; The technology that pulley is made is complicated, long processing time, and machining accuracy is low, and the degree of finish of plating is poor, and appearance is not attractive in appearance.Chinese patent ZL95243486.5 (notification number CN2210971Y) discloses the rolling pulley of a kind of splayed shape double width plate, hot working is rolling to form the pulley of this structure owing to adopting, process equipment is huge, the cost height, labor intensity is big, and manufacturing efficiency is low, and the chipping allowance of processing also reduces seldom, the precision of processing is not high yet, and application area is narrow.

The purpose of this utility model provides a kind of low cost of manufacture, manufacturing efficiency height, and the machining accuracy height is electroplated bright and clean good stamping part retractable door pulley.

The utility model comprises two pyramidal hubs and two disc, and wherein the spoke of band V font race is formed in two hubs butt joints, and two disc are separately fixed at the bi-side of spoke, and be provided with can be by the through hole of wheel shaft at the disc center.

The utility model is owing to adopt plate cold working punching press to connect the structure that is combined into whole pulley, greatly reduce the machining allowance of pulley assembly, consumptive material is few, effectively reduces the deadweight of pulley, cost is low, the pulley manufacturing process is simpler, convenient, fast, manufacturing efficiency is high, the machining accuracy height, and the degree of finish of plating is better, specious, the product specification height can be widely used in various rail mounted retractable doors, and is practical.

Describe basic structure of the present utility model and principle in detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of first kind of scheme of the utility model;

Fig. 2 is the structural representation of second kind of scheme of the utility model;

Fig. 3 is the structural representation of the third scheme of the utility model;

As shown in Figure 1-Figure 3, the utility model comprises the hub 1 and two disc 2 of two tapers, wherein the spoke of band V font race is formed in 1 butt joint of two hubs, the mode of its butt joint can be varied, as shown in Figure 1, the engagement legs that can be an above-mentioned hub 1 is made the L shaped bayonet socket 11 of being with flange, and the engagement legs of another hub 1 is installed in this L shaped bayonet socket 11 and by punching press and links into an integrated entity; As shown in Figure 2, also can be that above-mentioned two hubs 1 link into an integrated entity by the welding joint pin; As shown in Figure 3, can also be that the engagement legs position of above-mentioned two hubs 1 is provided with Ц shape bag mouthfuls 3, and this Ц shape bag mouthfuls 3 surround the engagement legs of two hubs 1 and by punching press the three is linked into an integrated entity; It can also be other Placement.Two disc 2 are separately fixed at the bi-side of spoke, its affixed mode is that above-mentioned disc 2 is a drive fit with spoke, its periphery is gone out and is inflexedly snapped in the flanging 22 of spoke side and by the fastening spoke side that is installed in of punching press, also can be the side that is fixed on spoke by the mode of welding.Disc 2 centers are provided with can be by the through hole of wheel shaft, and for making things convenient for the slip of pulley, above-mentioned two disc stamp out inward recess 21 at lead to the hole site, and wherein the inward recess 21 of a disc strikes out the deep hole that can install bearing.

Claims

1, a kind of retractable door pulley, it is characterized in that comprising two pyramidal hubs (1) and two disc (2), wherein the spoke of band V font race is formed in two hubs (1) butt joints, and two disc (2) are separately fixed at the bi-side of spoke, and be provided with can be by the through hole of wheel shaft at disc (2) center.

2,, it is characterized in that above-mentioned two disc (2) stamp out inward recess (21) at lead to the hole site, and wherein the inward recess of a disc strikes out the deep hole that can install bearing according to the described retractable door pulley of claim 1.

3, according to claim 1 or 2 described retractable door pulleys, it is characterized in that the engagement legs of an above-mentioned hub (1) is made the L shaped bayonet socket (11) of being with flange, the engagement legs of another hub (1) is installed in this L shaped bayonet socket (11) and by punching press and links into an integrated entity.

4,, it is characterized in that above-mentioned two hubs (1) link into an integrated entity by the welding joint pin according to claim 1 or 2 described retractable door pulleys.

5, according to claim 1 or 2 described retractable door pulleys, engagement legs (1) position that it is characterized in that above-mentioned two hubs is provided with Ц shape bag mouthful (3), and this Ц shape bag mouthful (3) surrounds the engagement legs of two hubs and by punching press the three linked into an integrated entity.

6, according to claim 1 or 2 described retractable door pulleys, it is characterized in that above-mentioned disc and spoke are drive fit, its periphery has been gone out inflexed flanging (22) and by the fastening spoke side that is installed in of punching press.