CN201377239Y - Elastic tricycle for sliding door - Google Patents

Abstract

The utility model discloses an elastic tricycle for a sliding door, which comprises three pulleys arranged in a "品" shape, wherein an upper wheel is connected to a movable shaft of a pulley fixing wheel frame, a spring is installed in the movable shaft of the pulley fixing wheel frame, so that the elastic tricycle can automatically adjust the relative position between the upper wheel and the lower wheel to ensure that the movable door will not jump during the pushing and pulling process, thereby reducing noise, making the pushing and pulling smooth and smooth, improving the convenience and stability of the movable door, and extending its service life.

Description

A kind of elastic tricycle for sliding door

technical field

The utility model relates to a pulley, in particular to an elastic three-wheel used for sliding doors.

Background technique

Sliding doors usually adopt a combined structure of tracks and rollers, and the purpose of easily pushing the sliding doors is achieved by installing the rollers in the chute of the track and rolling them. At present, the connection method that the rollers often adopt is to install two rollers with a certain distance on the bracket, and install the two pulleys in the chute of the track. Since the distance between the two rollers is fixed and the width of the chute of the track is also determined, it is difficult to completely match the two, resulting in the sliding door not running smoothly, and the whole usually shakes and makes noise . Shaking for a long time will also affect the safety of the sliding door and reduce the service life of the sliding door.

As an improved solution, a Chinese utility model patent No. ZL02247757.8 discloses a pulley device on a sliding door, which uses at least three pulleys, including at least one fixed wheel and two elastic wheels, A frame is also provided, on which the fixed wheel is pivoted, and the elastic wheel is elastically pivoted on the frame through an "L"-shaped bracket. Since the bracket adopts elastic material, the distance between the fixed wheel and the elastic wheel can be automatically adjusted. Although this improvement scheme can make the cooperation between the roller and the chute of the track closer than that of the prior art to a certain extent, the use of elastic materials in it leads to the improvement of the requirements for materials and processes, so that the structure of the entire sliding door Complexity, cost increase, and production efficiency decrease. In addition, elastic materials also have the problem of limited elastic deformation range, coupled with rapid aging, the effect of automatic adjustment is not satisfactory.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a kind of elastic three wheels which can automatically adjust the position to make the sliding door run smoothly.

In order to achieve the above purpose, the utility model provides a kind of elastic three wheels for sliding doors, including an upper wheel, two lower wheels, a pulley fixed wheel frame, a pulley fixed wheel frame movable shaft, a pulley fixed seat, a pulley fixed seat Cover and connecting screw, wherein, the one upper wheel is connected with the movable shaft of the pulley fixed wheel frame, and the two lower wheels are respectively connected with the corresponding pulley fixed wheel frame, and the pulley fixed wheel frame and the pulley fixed wheel frame are movable The shafts are connected by connecting screws and installed on the pulley fixing seat, so that one upper wheel and two lower wheels are arranged in the shape of "pin", the pulley fixing seat and the pulley fixing seat cover are connected together by bolts, and the pulley is fixed A spring is housed inside the movable shaft of the wheel frame.

According to a preferred embodiment of the present invention, two rubber pads for fixing the movable door and reducing the impact can also be arranged between the pulley fixing seat and the pulley fixing seat cover.

According to another preferred embodiment of the present utility model, an adjustment screw for adjusting the relative position between the pulley fixing frame and the pulley fixing seat can also be arranged on the pulley fixing seat.

The beneficial effect of the utility model is that, under the action of the spring inside the movable shaft of the fixed wheel frame of the pulley, the elastic three wheels have elasticity, so that the relative distance between the upper wheel and the lower wheel can be automatically adjusted, thereby not only ensuring that the pulley is It will not fall off from the chute of the upper track during operation, making the dodge door safer and firmer, and it can also ensure that the elastic tricycles are in full contact with the chute of the upper track during the whole operation, so that the dodge door will not jump when pushed and pulled. Therefore, the noise is reduced, the push and pull is smooth and smooth, and the convenience and stability of the dodge door are improved, and the service life is also prolonged.

Description of drawings

Fig. 1 is a schematic structural view of an elastic tricycle according to a preferred embodiment of the present invention; and

Fig. 2 is a schematic diagram of installation of the elastic three wheels shown in Fig. 1 .

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Fig. 1 and Fig. 2 jointly show the specific structure of the elastic three wheels according to the preferred embodiment of the present invention. As shown in the figure, the elastic three wheels include upper wheel 2, lower wheel 3, pulley fixed wheel frame 4, pulley fixed wheel frame movable shaft 5, pulley fixed seat 6, adjusting screw 7, rubber pad 8, pulley fixed seat cover 9. Connect the screw 10 and the spring 11, wherein the upper wheel 2 is connected with the movable shaft 5 of the pulley fixed wheel frame, and the two lower wheels 3 are respectively connected with the corresponding pulley fixed wheel frame 4, and the pulley fixed wheel frame 4 is fixed with the pulley The movable shafts 5 of the wheel frame are connected by connecting screws 10 . The inside of pulley fixed wheel frame movable shaft 5 is equipped with spring 11, is installed on the pulley holder 6 together then, so that three pulleys are arranged into " product " font. Finally, the pulley fixing seat 6 and the pulley fixing seat cover 9 can be connected together by bolts.

As a further improvement, in this embodiment, two rubber pads 8 may be provided between the pulley fixing seat 6 and the pulley fixing seat cover 9 for fixing the movable door 12 and reducing the impact caused by vibration. In addition, an adjustment screw 7 can also be provided on the pulley fixing seat 6 for adjusting the relative position between the pulley fixing wheel frame 4 and the pulley fixing seat 6, so as to achieve the effect of adjusting the height balance of the dodge door 12.

It can also be seen from FIG. 2 that the elastic three wheels according to this embodiment are preferably used in the upper track 1 of the sliding door of the shower room. Under the action of the spring 11 inside the movable shaft 5 of the pulley fixed wheel frame, the pulley is elastic, and the relative distance between the upper wheel 2 and the lower wheel 3 can be automatically adjusted, so that the upper wheel 2 is more closely attached to the upper track 1 The upper edge of the inner side of the chute, while the two lower wheels 3 are more closely attached to the lower edge of the inner side of the upper track 1 chute. Like this, not only guarantee that pulley can not come off from the chute of upper track 1 during operation, make dodge door 12 safer and firmer, but also ensure that the elastic tricycle fully contacts with the chute of upper track 1 in the whole operation process, makes The dodge door 12 will not jump when pushed and pulled, thereby reducing the noise, making the push and pull smooth and smooth, improving the convenience and stability of the dodge door 12 in use, and prolonging the service life.

Of course, the elastic three wheels are not limited to be used in the upper track of the sliding door of the shower room, and the elastic three wheels provided by the utility model can be used in other tracks similar to the structure.

The above disclosures are only preferred embodiments of the present utility model, and certainly cannot be used to limit the protection scope of the present utility model. It can be understood that equivalent changes made according to the essence and scope defined in the claims of the present invention still belong to the scope covered by the present invention.

Claims (3)

1. elasticity three-wheel that is used for sliding door, comprise that is gone up a wheel (2), two lower whorls (3), pulley is wheel carrier (4) fixedly, pulley is wheel carrier movable axis (5) fixedly, pulley holder (6), pulley is flap (9) fixedly, connecting screw (10), wherein, described one go up wheel (2) and described pulley fixedly wheel carrier movable axis (5) be connected, described two lower whorls (3) respectively with the described pulley of correspondence fixedly wheel carrier (4) be connected, described pulley fixedly wheel carrier (4) and described pulley is installed on the described pulley holder (6) after fixedly being connected by described connecting screw (10) between the wheel carrier movable axis (5), so that a described last wheel (2) and described two lower whorls (3) are lined up " product " font, described pulley holder (6) and described pulley fixedly flap (9) link together by bolt, it is characterized in that described pulley fixedly is equipped with spring (11) in wheel carrier movable axis (5) inside.

2. elasticity three-wheel according to claim 1 is characterized in that, two rubber cushions (8) that fixedly can also be provided for fixing dodge gate (12) between the flap (9) and reduce to impact at described pulley holder (6) and described pulley.

3. elasticity three-wheel according to claim 1 is characterized in that, can also be provided for regulating the fixedly set screw (7) of the relative position between wheel carrier (4) and the described pulley holder (6) of described pulley on the described pulley holder (6).

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