Rolling mechanism for supporting and conveying roller shutter door

Abstract

The utility model relates to the technical field of rolling of roller shutter doors, and particularly discloses a rolling mechanism for supporting and conveying a roller shutter door, which comprises a frame and a curtain door, a traction driving group is arranged at the top of the frame, spiral rails fixedly connected with the frame are arranged on two sides of the curtain door, and limiting rollers are in rolling connection with the spiral rails. The bottoms of the two sides of the curtain door are each provided with a traction connecting piece, and the traction connecting pieces are fixedly connected with a traction driving set. According to the rolling mechanism for supporting and conveying the roller shutter door, an original pulling mode is changed into a lifting mode, an original pull rope and an original pull rope rolling roller are removed, and the roller shutter door can be rolled and closed more rapidly and stably. The spiral track is used as a support for rolling the connecting door, so that the curtain door sheets cannot be stacked and contacted during rolling through the gap of the spiral area. And mutual appearance friction is avoided. And a torsion spring for assisting power is arranged on the transmission shaft, so that the power when the curtain door is lifted is effectively improved, and the falling impact force when the curtain door is put down and unfolded is buffered.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter door lifting mechanisms, in particular to a rolling shutter door reeling mechanism. Background Art

[0002] Rolling shutter doors are made of multi-jointed door panels connected in series. In a fixed slide, the door rotates up and down around the scroll above the door. Rolling shutter doors are commonly used in shops and warehouses.

[0003] The original spiral track rolling door has a pull rope connected to the top of the rolling door. The rolling door is lifted by winding the rope through the reel. When the shutter door enters the spiral area of ​​the spiral track, the rope is driven to rotate, driving the shutter door to rotate into the spiral area of ​​the spiral track to achieve winding. The winding is more laborious in the later stage.

[0004] There are also reel-type ones, where the shutter door is directly connected to the reel roller, and the shutter door is reeled onto the reel roller by the rotation of the reel roller. However, the contact and stacking of the shutter door panels can easily cause wear and tear on the appearance, and the reeling speed is also slow. Utility Model Content

[0005] The utility model aims to provide a rolling shutter door reeling mechanism to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling shutter door winding mechanism, comprising a frame and a shutter door, a traction drive group is arranged on the top of the frame, spiral tracks fixed to the frame are arranged on both sides of the shutter door, limiting rollers are arranged on both sides of the shutter door, the limiting rollers are rollingly connected to the spiral tracks, and traction connecting pieces are arranged on the bottom of both sides of the shutter door, and the traction connecting pieces are fixedly connected to the traction drive group.

[0007] Preferably, the traction drive group includes a transmission shaft, and driven wheels are provided at both ends of the outer wall of the transmission shaft and at the bottom of both sides of the inner wall of the frame, and the two driven wheels in the same longitudinal direction are connected by a second traction member, and the second traction member is fixedly connected to the traction connecting member; the driven wheel adjacent to one side is provided with a driving wheel fixedly connected to the transmission shaft, and a motor is provided in the middle of the spiral area of ​​the spiral track near the driving wheel, and the output end of the motor is connected to the driving wheel through the first traction member.

[0008] Preferably, a boost torsion spring is provided on the transmission shaft.

[0009] Preferably, the driving wheel and the driven wheel both use chain gears, and the first traction member and the second traction member both use chains.

[0010] Preferably, the spiral track includes a spiral area and a straight track area.

[0011] Preferably, the spiral track is in the shape of a dovetail groove, and the outer wheel diameter of the limiting roller is larger than the inner wheel diameter, so that the limiting roller is compatible with the dovetail groove-shaped spiral track.

[0012] Preferably, a baffle is fixedly connected to the inner wall of the traction connecting piece.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The rolling shutter door rewinding mechanism changes the original pulling type into a lifting type, removes the original pull rope and pull rope rewinding roller, and makes the rolling shutter door rewinding and closing faster and smoother. The spiral track is used as the support of the rewinding door, and the gap in the spiral area can prevent the door panels from overlapping and contacting when rewinding. Avoid mutual external friction. The torsion spring for assisting is set on the transmission shaft, which effectively increases the power when the shutter door is lifted, and the impact force of falling when it is lowered and unfolded is buffered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a frame and a rolling door in a preferred embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a rolling shutter door in a preferred embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of a three-dimensional structure of one side of a frame in a preferred embodiment of the utility model;

[0018] Figure 4 This is a structural schematic diagram of the connection between the curtain door and the traction connecting member in a preferred embodiment of the utility model;

[0019] Figure 5 This is a structural schematic diagram of a traction connecting member in a preferred embodiment of the utility model;

[0020] Figure 6 It is a structural schematic diagram of a traction connecting piece in a preferred embodiment of the utility model.

[0021] In the figure: 1, frame, 2, transmission shaft, 3, power torsion spring, 4, driving wheel, 5, driven wheel, 6, spiral track, 61, straight track area, 7, curtain door, 8, traction connecting piece, 9, limiting roller, 10, first traction piece, 11, second traction piece, 12, baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 , the utility model provides a technical solution:

[0024] A rolling shutter door winding mechanism comprises a frame 1 and a shutter door 7. A traction drive group for pulling the shutter door 7 to be retracted is arranged on the top of the frame 1. Spiral tracks 6 fixed to the frame 1 are arranged on both sides of the shutter door 7. The spiral tracks 6 limit the moving trajectory of the shutter door 7 and also replace the original roller shaft for rolling up the shutter door.

[0025] Both sides of the curtain door 7 are rotatably connected to limit rollers 9, and the limit rollers 9 can roll inside the spiral track 6, thereby reducing the friction between the curtain door 7 and the spiral track 6, reducing the resistance to the movement of the curtain door and the noise generated.

[0026] Traction connecting parts 8 are provided at the bottom of both sides of the curtain door 7, and the traction connecting parts 8 are fixedly connected to the traction driving group. When the traction driving group is working, it drives the traction connecting parts 8, and drives the curtain door 7 to move upward along the spiral track 6 in the form of lifting through the traction connecting parts 8, and enters the spiral area to realize winding.

[0027] The traction drive group includes a transmission shaft 2, which is mainly used to drive the driven wheels 5 on both sides to rotate simultaneously. The driven wheels 5 are arranged at both ends of the outer wall of the transmission shaft 2 and the bottom of both sides of the inner wall of the frame 1. The two driven wheels 5 in the same longitudinal direction are used to support the second traction member 11. The second traction member 11 rotates around the two driven wheels 5 to drive the curtain door 7 through the traction connecting member 8.

[0028] The original pulling type is changed to a lifting type, and the original pull rope and pull rope winding roller are removed, making the rolling and closing of the rolling door faster and smoother.

[0029] The second traction member 11 is fixedly connected to the traction connection member 8; a driving wheel 4 fixedly connected to the transmission shaft 2 is provided near the driven wheel 5 on one side of the transmission shaft 2, and a motor is provided near the driving wheel 4 in the middle of the spiral area of ​​the spiral track 6, and the output end of the motor is connected to the driving wheel 4 through the first traction member 10. The motor drives the driving wheel 4 to rotate, and the driving wheel 4 drives the transmission shaft 2 to rotate, and the transmission shaft 2 simultaneously drives the driven wheels 5 fixed on both sides of the transmission shaft 2 to rotate, thereby driving the second traction members 11 on both sides of the curtain door 7 to rotate at the same time, and driving the curtain door 7 to move at the same time.

[0030] The driving wheel 4 and the driven wheel 5 both use chain gears, and the first traction member 10 and the second traction member 11 both use chains.

[0031] The transmission shaft 2 is provided with a booster torsion spring 3, which is tightened to apply a force to the transmission shaft 2. The direction of the force is the rotation direction of the transmission shaft 2 when the curtain door is rolled up, which plays a role of boosting when the traction drive group is working. Since the booster torsion spring 3 always exerts a force on the transmission shaft 2 when the curtain door 7 is closed, the motor controls the second traction member 11 to drive the curtain door 7 to move upward. At the same time, the force of the booster torsion spring 3 on the transmission shaft 2 loses resistance, assisting the rotation of the transmission shaft 2 and reducing the pressure of the motor starting. In the process of closing the curtain door, the curtain door 7 falls, and the resistance of the booster torsion spring 3 to the rotation of the transmission shaft 2 gradually increases, and a certain buffering effect is provided during the falling process of the curtain door 7.

[0032] The spiral track 6 includes a spiral area and a straight track area 61. When the curtain door 7 is rolled up and opened, the curtain door 7 is in the spiral area of ​​the spiral track 6; when the curtain door 7 is closed and unfolded, the curtain door 7 is in the straight track area 61 of the spiral track 6.

[0033] The spiral track 6 is in the shape of a dovetail groove, and the outer wheel diameter of the limiting roller 9 is larger than the inner wheel diameter, so that the limiting roller 9 is adapted to the dovetail groove-shaped spiral track 6. The dovetail groove-shaped spiral track 6 is used to limit the limiting roller 9 to prevent the limiting roller 9 from shaking left and right, thereby fixing the curtain door 7 to prevent the curtain door 7 from shaking left and right, making the curtain door 7 more stable.

[0034] The inner wall of the traction connecting member 8 is fixedly connected with a baffle 12. The baffle 12 is placed between the outer wall of the straight track area 61 and the second traction member 1 to prevent the two from contacting each other. At the same time, once the curtain door 7 is tilted, the baffle 12 will block it.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling shutter door reeling mechanism, comprising a frame (1) and a shutter door (7), characterized in that: A traction drive group is arranged on the top of the frame (1), spiral tracks (6) fixedly connected to the frame (1) are arranged on both sides of the curtain door (7), limiting rollers (9) are arranged on both sides of the curtain door (7), the limiting rollers (9) are rollingly connected to the spiral tracks (6), and traction connecting members (8) are arranged on the bottom of both sides of the curtain door (7), and the traction connecting members (8) are fixedly connected to the traction drive group.

2. A rolling shutter door rewinding mechanism according to claim 1, characterized in that: The traction drive group comprises a transmission shaft (2), and driven wheels (5) are arranged at both ends of the outer wall of the transmission shaft (2) and at the bottom of both sides of the inner wall of the frame (1), and the two driven wheels (5) in the same longitudinal direction are connected by a second traction member (11), and the second traction member (11) is fixedly connected to the traction connection member (8); the driven wheel (5) on one side is provided with a driving wheel (4) fixedly connected to the transmission shaft (2), and a motor is arranged in the middle of the spiral area of ​​the spiral track (6) on the side close to the driving wheel (4), and the output end of the motor is connected to the driving wheel (4) through the first traction member (10).

3. A rolling shutter door rewinding mechanism according to claim 2, characterized in that: A boost torsion spring (3) is arranged on the transmission shaft (2).

4. The rolling shutter door rewinding mechanism according to claim 2, characterized in that: The driving wheel (4) and the driven wheel (5) both use chain gears, and the first traction member (10) and the second traction member (11) both use chains.

5. The rolling shutter door rewinding mechanism according to claim 1, characterized in that: The spiral track (6) comprises a spiral area and a straight track area (61).

6. The rolling shutter door rewinding mechanism according to claim 1, characterized in that: The spiral track (6) is in the shape of a dovetail groove, and the outer wheel diameter of the limiting roller (9) is larger than the inner wheel diameter, so that the limiting roller (9) is compatible with the dovetail groove-shaped spiral track (6).

7. The rolling shutter door rewinding mechanism according to claim 1, characterized in that: A baffle (12) is fixedly connected to the inner wall of the traction connecting piece (8).

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