CN200958359Y

CN200958359Y - Spring box of rolling door

Info

Publication number: CN200958359Y
Application number: CN 200620111435
Authority: CN
Inventors: 史涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-28
Filing date: 2006-09-28
Publication date: 2007-10-10
Anticipated expiration: 2016-09-28

Abstract

The utility model discloses a roller shutter spring box and composes two wheel disks (1) with a pivot hole (1a) and several connecting pieces (2). An assembly sleeve (3) with a pivot hole (3a) is fixed to the middle of the wheel disk (1) outboard in correspondent with the pivot hole (1a). The assembly sleeve (3) is provided with an inner ring (4) inside, and a ring hollow chamber between the inner ring (4) and the assembly sleeve (3) is provided with a rolling body (5). The wheel disk (1) can rotate in opposite to the inner ring (4) under the action of the rolling body (5). The utility model effectively promotes the flexibility of the wheel disk rotation to save the labor of pulling down and lifting up the roller shutter. Either the workers can be prevented from being injured on the hand during installation or the scoring of the curtain sheet of the roller shutter caused by the wheel disk rotation can be avoided by using the utility model, and the service life of the curtain sheet is greatly prolonged. Having the advantages of good flexibility, great stability, duration and labor-saving, the utility model is applicable for being extensively popularized and used.

Description

The rolling door spring case

Technical field

The utility model relates to the component on a kind of rolling door, especially a kind of rolling door spring case.

Background technology

At present, the general spring case that is used on the rolling door scrolling mechanism has generally comprised two wheel discs and a plurality of steel discs that are connected, and the middle part of two wheel discs is provided with axis hole, and the two ends that connect steel disc are welded on respectively on the edge of two wheel discs.During use, wheel disc is sleeved on the axle, and the edge of wheel disc becomes some contact with the form of sheet with the curtain sheet of rolling door, and under helical spring drive, thereby the wheel disc rotation is batched the curtain sheet and moved up and down.The spring case of this structure has the following disadvantages:

1, wheel disc adopts helical spring to drive, and flexibility is relatively poor.

2, owing to connect steel disc and be welded on the edge of wheel disc, two wheel discs only depend on pad to keep each other whole fastness with being connected between the steel disc, and steadiness is relatively poor; In the process of installing, connect steel disc and also easily workman's hand is scratched.

3,, cause the curtain sheet to damage because wheel disc is thinner, and the edge of wheel disc is easy to scratch the curtain sheet.

The patent No. is that 200520009550.6 Chinese patent discloses a kind of novel spring case structure on July 26th, 2006, it is that crimping is arranged at the edge of wheel disc, the assembling cover that is fixed with the tape spool hole in the side and the corresponding position of wheel disc axis hole of wheel disc is provided with the nylon plastic(s) lasso in the assembling cover.The spring case of this structure is when batching the curtain sheet and move up and down, and relatively rubbing by nylon plastic(s) lasso and axle makes wheel disc rotate with respect to axle to realize.Because what adopt is fricting transmissioning mode, frictional force is bigger when batching the curtain sheet, and it is dumb to make that wheel disc rotates, and leaves behind or carry on rolling door to require great effort; Simultaneously, the nylon plastic(s) lasso wears no resistance, quick abrasion, and time one length will lose functional performance, can bring very big inconvenience to the user if change the nylon plastic(s) lasso.In addition, crimping is arranged at the edge of wheel disc, and its lifting surface area is still less, can not prevent fundamentally that the curtain sheet is scratched.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of can effectively improve the rolling door spring case that wheel disc rotates flexibility.

The technical solution of the utility model is as follows: a kind of rolling door spring case, the wheel disc and a plurality of connector that comprise two tape spool holes, the assembling cover that is fixed with the tape spool hole in the outer middle side part and the corresponding position of wheel disc axis hole of wheel disc, its key is: be provided with inner ring in the described assembling cover, be distributed with rolling element in the toroidal cavity between this inner ring and the assembling cover, under the effect of rolling element, wheel disc and assembling cover can rotate relative to inner ring.

The utility model in use, be sleeved on the axle by inner ring, because under the effect of rolling element, wheel disc can rotate relative to inner ring, and promptly by the effect of rolling element, wheel disc can rotate relative to axle, wheel disc is when batching the curtain sheet and move up and down like this, compare with background technology, its flexibility improves greatly, and more laborsaving.

Above-mentioned rolling element is a roller, line contact between the two adjacent rollers.Adopt the roller transmission, when guaranteeing flexibility, abrasion resistance is good, and application life is secure.

Above-mentioned roller is the hollow and thin-walled structure.Roller can adopt the clout punching press behind the processing wheel disc to seal and form, and has fully saved raw material, has reduced cost of production.

Above-mentioned rolling element is a ball, some contact between the two adjacent balls.Adopt ball also can reach the effect of flexible transmission.

Above-mentioned connector is to be through two bolts on the wheel disc, and by nut check, the bolt shank between two wheel discs is equipped with sleeve pipe.Bolt makes between two wheel discs and is connected firmly, easy accessibility; On the bar of bolt sleeve pipe is set, has both play a part the wheel disc location, workman's hand is scratched in the time of preventing to install again.

The continuous edge flange of above-mentioned wheel disc forms the first flange part and with wheel disc parallel second flange part vertical with wheel disc.Because first flange part is vertical with wheel disc, it with the curtain sheet between the one-tenth face contact, and the area that contacts is bigger, has prevented that fundamentally the curtain sheet is scratched.

Beneficial effect: the utility model has effectively improved the flexibility that wheel disc rotates, make control rolling door drop-down or on lift more laborsaving, hand was scratched when it can prevent that the workman from installing, and scratched the curtain sheet of rolling door in the time of also can avoiding wheel disc to rotate, and had prolonged the application life of curtain sheet greatly.The utlity model has advantages such as flexibility is good, steadiness is strong, wear-resisting, laborsaving, be suitable for large-scale promotion and use.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the lateral view of Fig. 1.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Embodiment 1, as shown in Figure 1 and Figure 2, the utility model is made of the parts such as wheel disc 1, connector 2, assembling cover 3, inner ring 4 and rolling element 5 of two tape spool hole 1a, two wheel discs 1 be arranged in parallel, the continuous edge flange of wheel disc 1, form and vertical first flange part 1b of wheel disc 1 and the second flange part 1c parallel,, prevent that the curtain sheet is scratched to increase and the contact area of roller shutter door curtain sheet with wheel disc 1.Connector 2 is selected bolt for use, and this bolt is being circularly and evenly distributed near the edge of the first flange part 1b, and bolt is through on two wheel discs 1, and by nut 6 lockings, sleeve pipe 7 also is equipped with in the bar portion of bolt between two wheel discs.The assembling cover 3 that is fixed with tape spool hole 3a in the outer middle side part and the corresponding position of wheel disc axis hole 1a of wheel disc 1, in the assembling cover 3 inner ring 4 is arranged, be distributed with rolling element 5 in the toroidal cavity between this inner ring 4 and the assembling cover 3, rolling element 5 is selected the roller of hollow and thin-walled structure for use, line contact between the two adjacent rollers.Described inner ring 4 and roller axle are upwards spacing by wheel disc 1 and assembling cover 3, and under the effect of roller, wheel disc 1 and assembling cover 3 can rotate relative to inner ring 4.

Embodiment 2, and rolling element 5 is selected ball for use in the present embodiment, some contact between the two adjacent balls, and all the other structures are identical with embodiment 1.

Claims

1, a kind of rolling door spring case, the wheel disc (1) and a plurality of connector (2) that comprise two tape spool holes (1a), the assembling cover (3) that is fixed with tape spool hole (3a) in the outer middle side part and the corresponding position of wheel disc axis hole (1a) of wheel disc (1), it is characterized in that: be provided with inner ring (4) in the described assembling cover (3), be distributed with rolling element (5) in the toroidal cavity between this inner ring (4) and the assembling cover (3), under the effect of rolling element (5), wheel disc (1) and assembling cover (3) can rotate relative to inner ring (4).

2, rolling door spring case according to claim 1 is characterized in that: described rolling element (5) is a roller, line contact between the two adjacent rollers.

3, rolling door spring case according to claim 2 is characterized in that: described roller is the hollow and thin-walled structure.

4, rolling door spring case according to claim 1 is characterized in that: described rolling element (5) is a ball, some contact between the two adjacent balls.

5, rolling door spring case according to claim 1 is characterized in that: described connector (2) is the bolt that is through on two wheel discs (1), and by nut (6) locking, the bolt shank between two wheel discs is equipped with sleeve pipe (7).

6, rolling door spring case according to claim 1 is characterized in that: the continuous edge flange of described wheel disc (1) forms the first flange part (1b) and with wheel disc (1) parallel second flange part (1c) vertical with wheel disc (1).