A stable connection roller shutter door

Abstract

This utility model relates to a stable roller shutter door, belonging to the technical field of roller shutter doors. It includes a door housing with a door frame on its lower surface and a fixing opening on the lower surface. This stable roller shutter door, when the motor is started, drives a first bevel gear to rotate via the outer side of the motor's output shaft. A second bevel gear meshing with the outer side of the first bevel gear rotates, driving a rotating rod and rollers to rotate. This allows the roller shutter door body, located on the outer side of the rollers, to be rolled up or unrolled, thus closing or opening the door. A maintenance panel is provided on the back of the door housing for easy access to the internal equipment. The interaction between the two baffles on the left and right sides and at least two second ball bearings on each side enhances the stability of the roller shutter door structure and improves its wind resistance. By placing the motor inside the door housing, the installation volume of the roller shutter door is reduced, improving its practicality.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter door technology, specifically a roller shutter door with stable connection. Background Technology

[0002] With the rapid development of technology, roller shutters have become increasingly advanced in structure and more complete in function. Roller shutters are suitable for commercial storefronts, garages, shopping malls, hospitals, factories and mines, and other public places or residences.

[0003] For example, Chinese patent CN214787124U discloses a structurally stable fireproof roller shutter door. Its technical solution includes a roller shutter door box, a motor fixedly connected to one side of the roller shutter door box, two door frames fixedly connected to the bottom of the roller shutter door box, a fixing mechanism inside the roller shutter door box, and a protective component outside the motor. The fixing mechanism includes a first rotating shaft fixedly connected to the motor output end. The beneficial effects of this structurally stable fireproof roller shutter door are that, by allowing the user to operate the motor to rotate forward, the motor causes the rollers to rotate, thereby causing the roller shutter door body to fall. The forward rotation of the motor also drives the bearing seat to move, thus allowing the first baffle to move left and right. The forward rotation of the motor can also drive multiple rotating rods to rotate, thereby causing the second baffle to rotate. This invention increases the service life of the roller shutter door, reduces noise caused by shaking, and brings benefits to people's daily lives.

[0004] While the aforementioned patent reduces noise caused by shaking, bringing benefits to people's daily lives, the fact that the motor is located on the left side of the roller shutter door box increases the size of the roller shutter door installation. When installation space is limited, this increases the difficulty of installation and reduces practicality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a roller shutter door with stable connection and has the advantages of reducing the installation volume of the roller shutter door. It solves the problem that the motor is set on the left side of the roller shutter door box, which increases the installation volume of the roller shutter door and increases the installation difficulty and reduces the practicality when the installation space is limited.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stable roller shutter door, including a door box, a door frame provided on the lower surface of the door box, a fixing opening provided on the lower surface of the door box, a connecting mechanism provided inside the door box, and a reinforcing mechanism provided on the left and right side walls of the inner cavity of the door frame.

[0007] The connecting mechanism includes a rotating rod, a roller, a roller shutter door body, a motor, a first bevel gear, and a second bevel gear. The rotating rod is rotatably connected to the inside of the door box via a bearing. The roller is located on the outside of the rotating rod. The roller shutter door body is located on the outside of the roller. The motor is located on the left side of the top wall of the inner cavity of the door box. The first bevel gear is located on the outside of the motor output shaft. The second bevel gear meshes with the outside of the first bevel gear. The second bevel gear is located on the outside of the rotating rod. The roller shutter door body is slidably connected to the inside of the fixed opening.

[0008] By adopting this technical solution, the installation volume of roller shutter doors can be reduced.

[0009] Furthermore, the rotating rod is located on the transverse central axis of the door box, and a maintenance plate is provided on the back of the door box.

[0010] By adopting this technical solution, the stability of the rotating rod during rotation is improved.

[0011] Furthermore, the reinforcement mechanism includes two fixing slots, two small electric push rods, four telescopic rods, and two clamping plates. The two fixing slots are both located on the left and right side walls of the inner cavity of the door frame. The two small electric push rods are both located on the opposite side walls of the inner cavities of the left and right fixing slots. The opposite sides of the clamping plates are fixedly connected to the outer sides of the output shafts of the small electric push rods. The four telescopic rods are both located on the upper and lower sides of the opposite side walls of the inner cavities of the left and right fixing slots. The opposite sides of the telescopic rods are fixedly connected to the opposite sides of the clamping plates. The clamping plates are slidably connected inside the fixing slots.

[0012] By adopting this technical solution, the swaying of the roller shutter door body inside the door frame during strong winds is reduced through the reinforcement mechanism, thereby improving the stability of the structure.

[0013] Furthermore, the telescopic rod includes a first slide rod, and a second slide rod is slidably connected to the outer side of the first slide rod.

[0014] By adopting this technical solution, the stability of the left and right clamping plates during left and right movement can be improved through the telescopic rods on the left and right sides.

[0015] Furthermore, baffles are provided on both the front and rear sides inside the door frame, and at least two first ball bearings are rotatably connected to the opposite side of each of the front and rear baffles. The opposite side of each of the front and rear first ball bearings is in contact with the front and back of the roller shutter door body.

[0016] By adopting this technical solution, the stability of the roller shutter door structure can be improved through the front and rear baffles.

[0017] Furthermore, a buffer rubber layer is provided on the bottom wall of the inner cavity of the door frame, and the upper surface of the buffer rubber layer is in contact with the bottom end of the roller shutter door body.

[0018] By adopting this technical solution, the bottom of the roller shutter door body can be protected by the buffer rubber layer, while also serving a sealing function.

[0019] Furthermore, reinforcing plates are provided on the front and rear sides of the left and right sidewalls of the inner cavity of the door frame. At least two second ball bearings are rotatably connected to the opposite side of the front and rear reinforcing plates. The opposite side of the second ball bearings on the front and rear sides are in contact with the front and back of the roller shutter door body.

[0020] By adopting this technical solution, the stability of the roller shutter door body when closing can be improved through four reinforcing plates and no fewer than two second ball bearings.

[0021] Furthermore, the fixing grooves on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal central axis of the door frame.

[0022] By adopting this technical solution, the clamping plates on the left and right sides can move inside the fixing grooves on the left and right sides.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. This stable roller shutter door, when the motor is started, drives the first bevel gear to rotate on the outside of the motor output shaft. The second bevel gear, meshing with the first bevel gear on the outside, rotates and drives the rotating rod and roller to rotate. This allows the roller shutter door body, located on the outside of the roller, to be rolled up or unrolled, thus closing or opening the door. A maintenance plate is provided on the back of the door box for easy maintenance of the equipment inside. At the same time, the interaction between the two baffles on the left and right sides and at least two second ball bearings on the left and right sides can improve the stability of the roller shutter door structure and enhance its wind resistance. By placing the motor inside the door box, the installation volume of the roller shutter door can be reduced, improving its practicality.

[0025] 2. This stable roller shutter door allows for simultaneous activation of the small electric push rods on both sides when the door is closed inside the frame. The clamping plates on both sides move synchronously in opposite directions within the fixing slots on both sides, clamping and fixing the left and right sides of the roller shutter door body. This reduces the swaying of the roller shutter door body inside the frame during strong winds and improves the stability of the structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2This is a schematic diagram of the connection structure between the second ball bearing and the reinforcing plate of this utility model;

[0028] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0029] Figure 4 This is a schematic diagram of the reinforcement mechanism of this utility model.

[0030] In the diagram: 1. Door box; 2. Door frame; 3. Fixing opening; 4. Connecting mechanism; 41. Rotating rod; 42. Roller; 43. Roller shutter body; 44. Motor; 45. First bevel gear; 46. Second bevel gear; 5. Reinforcing mechanism; 51. Fixing groove; 52. Small electric push rod; 53. Telescopic rod; 54. Clamping plate; 6. Baffle; 7. Buffer rubber layer; 8. Reinforcing plate; 9. Second ball bearing. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1 to 2 In this embodiment, a stable roller shutter door includes a door box 1, a door frame 2 on the lower surface of the door box 1, a fixing opening 3 on the lower surface of the door box 1, a connecting mechanism 4 inside the door box 1, the connecting mechanism 4 reduces the volume of the roller shutter door installation, and a reinforcement mechanism 5 is provided on the left and right side walls of the inner cavity of the door frame 2, the reinforcement mechanism 5 reduces the shaking of the roller shutter door body 43 inside the door frame 2 when strong winds occur, and improves the stability of the structure.

[0033] In this embodiment, baffles 6 are provided on both the front and back sides inside the door frame 2. At least two first ball bearings are rotatably connected to the opposite side of the front and back baffles 6. The opposite side of the front and back first ball bearings are in contact with the front and back sides of the roller shutter door body 43. At least two first ball bearings can roll on the front and back sides of the roller shutter door body 43.

[0034] Please see Figure 3To reduce the size of the roller shutter door installation, in this embodiment, the connecting mechanism 4 includes a rotating rod 41, a roller 42, a roller shutter door body 43, a motor 44, a first bevel gear 45, and a second bevel gear 46. The rotating rod 41 is rotatably connected to the inside of the door box 1 via a bearing. The roller 42 is located on the outside of the rotating rod 41, and the roller shutter door body 43 is located on the outside of the roller 42. The motor 44 is located on the left side of the top wall of the inner cavity of the door box 1. The first bevel gear 45 is located on the outside of the output shaft of the motor 44, and the second bevel gear 46 meshes with the outside of the first bevel gear 45. The second bevel gear 46 is located on the outside of the rotating rod 41, and the roller shutter door body 43 is slidably connected to the inside of the fixing opening 3.

[0035] In this embodiment, by placing the motor 44 inside the door housing 1, the installation volume can be reduced. When the motor 44 is started, the outer side of the motor 44's output shaft drives the first bevel gear 45 to rotate. The second bevel gear 46, meshing with the outer side of the first bevel gear 45, rotates, driving the rotating rod 41 and the roller 42 to rotate. This allows the roller shutter door body 43, located outside the roller 42, to be rolled up or unrolled, thus closing or opening the door. Sealing rubber strips are provided on both the left and right sides of the roller shutter door body 43, improving sealing performance.

[0036] In this embodiment, the rotating rod 41 is located on the transverse central axis of the door box 1. A maintenance plate is provided on the back of the door box 1. A buffer rubber layer 7 is provided on the bottom wall of the inner cavity of the door frame 2. The upper surface of the buffer rubber layer 7 is in contact with the bottom end of the roller shutter door body 43. Reinforcing plates 8 are provided on the front and back sides of the left and right side walls of the inner cavity of the door frame 2. At least two second ball bearings 9 are rotatably connected to the opposite side of the front and back reinforcing plates 8. The opposite side of the front and back second ball bearings 9 are in contact with the front and back sides of the roller shutter door body 43.

[0037] It should be noted that a maintenance panel is provided on the back of the door box 1 to facilitate the maintenance of the equipment inside the door box 1. The stability of the roller shutter door body 43 can be improved by the front and rear baffles 6. At the same time, the stability of the roller shutter door structure and the wind resistance performance can be improved by the interaction between the two baffles 6 on the left and right sides and the at least two second ball bearings 9 on the left and right sides.

[0038] Please see Figure 4To reduce the swaying of the roller shutter door body 43 inside the door frame 2 during strong winds and improve the stability of the structure, the reinforcement mechanism 5 in this embodiment includes two fixing slots 51, two small electric push rods 52, four telescopic rods 53 and two clamping plates 54. The two fixing slots 51 are both opened on the left and right side walls of the inner cavity of the door frame 2, and the two small electric push rods 52 are both set on the opposite side wall of the inner cavity of the left and right fixing slots 51. The roller shutter door body 43 is usually composed of multiple curtains made of metal or plastic materials connected in series, which has good impact resistance and anti-theft performance.

[0039] In this embodiment, the opposite sides of the left and right clamping plates 54 are fixedly connected to the outer side of the output shaft of the left and right small electric push rods 52. The four telescopic rods 53 are all set on the upper and lower sides of the opposite side wall of the inner cavity of the left and right fixed grooves 51. The opposite sides of the left and right telescopic rods 53 are fixedly connected to the opposite side of the left and right clamping plates 54. The clamping plates 54 are slidably connected inside the fixed grooves 51.

[0040] In this embodiment, the telescopic rod 53 includes a first slide rod, and a second slide rod is slidably connected to the outside of the first slide rod. The left and right fixing grooves 51 are symmetrically distributed on the left and right sides of the longitudinal central axis of the door frame 2. When the roller shutter door is closed inside the door frame 2, the small electric push rods 52 on the left and right sides can be started simultaneously, and the clamping plates 54 on the left and right sides move synchronously in opposite directions inside the left and right fixing grooves 51.

[0041] It should be noted that the left and right clamping plates 54 can clamp and fix the left and right sides of the roller shutter door body 43, reducing the shaking of the roller shutter door body 43 inside the door frame 2 when strong winds occur, improving the stability of the structure, and also improving the impact resistance and the stability of the connection structure.

[0042] The working principle of the above embodiments is as follows:

[0043] (1) By setting the motor 44 inside the door box 1, the installation volume can be reduced. By starting the motor 44, the outer side of the output shaft of the motor 44 drives the first bevel gear 45 to rotate. The second bevel gear 46 meshing with the outer side of the first bevel gear 45 rotates and drives the rotating rod 41 and the roller 42 to rotate. Then the roller shutter body 43 set outside the roller 42 can be rolled up or unrolled, thereby realizing the closing or opening of the door. The back of the door box 1 is provided with an inspection plate, which facilitates the maintenance of the equipment inside the door box 1. The stability of the roller shutter body 43 can be improved by the front and rear baffles 6. At the same time, the stability of the roller shutter structure can be improved and the wind resistance performance can be improved by the interaction between the two baffles 6 on the left and right sides and the second ball bearings 9 on the left and right sides.

[0044] (2) When the roller shutter door is closed inside the door frame 2, the small electric push rods 52 on the left and right sides can be started at the same time. The clamping plates 54 on the left and right sides move synchronously in opposite directions inside the fixing grooves 51 on the left and right sides. The clamping plates 54 on the left and right sides can clamp and fix the left and right sides of the roller shutter door body 43, reducing the shaking of the roller shutter door body 43 inside the door frame 2 when strong winds occur, and improving the stability of the structure.

Claims

1. A stable roller shutter door, comprising a door box (1), characterized in that: The lower surface of the door box (1) is provided with a door frame (2), the lower surface of the door box (1) is provided with a fixing opening (3), the interior of the door box (1) is provided with a connecting mechanism (4), and the left and right side walls of the inner cavity of the door frame (2) are provided with a reinforcing mechanism (5). The connecting mechanism (4) includes a rotating rod (41), a roller (42), a roller shutter door body (43), a motor (44), a first bevel gear (45), and a second bevel gear (46). The rotating rod (41) is rotatably connected to the inside of the door box (1) through a bearing. The roller (42) is located on the outside of the rotating rod (41). The roller shutter door body (43) is located on the outside of the roller (42). The motor (44) is located on the left side of the top wall of the inner cavity of the door box (1). The first bevel gear (45) is located on the outside of the output shaft of the motor (44). The second bevel gear (46) meshes with the outside of the first bevel gear (45). The second bevel gear (46) is located on the outside of the rotating rod (41). The roller shutter door body (43) is slidably connected to the inside of the fixed opening (3).

2. The roller shutter door with stable connection according to claim 1, characterized in that: The rotating rod (41) is located on the transverse central axis of the door box (1), and a maintenance plate is provided on the back of the door box (1).

3. A roller shutter door with stable connection according to claim 1, characterized in that: The reinforcement mechanism (5) includes two fixing slots (51), two small electric push rods (52), four telescopic rods (53) and two clamping plates (54). The two fixing slots (51) are opened on the left and right side walls of the inner cavity of the door frame (2). The two small electric push rods (52) are set on the opposite side wall of the inner cavity of the left and right fixing slots (51). The opposite side of the left and right clamping plates (54) is fixedly connected to the outer side of the output shaft of the left and right small electric push rods (52). The four telescopic rods (53) are set on the upper and lower sides of the opposite side wall of the inner cavity of the left and right fixing slots (51). The opposite side of the left and right telescopic rods (53) is fixedly connected to the opposite side of the left and right clamping plates (54). The clamping plates (54) are slidably connected inside the fixing slots (51).

4. A roller shutter door with stable connection according to claim 3, characterized in that: The telescopic rod (53) includes a first slide rod, and a second slide rod is slidably connected to the outside of the first slide rod.

5. A roller shutter door with stable connection according to claim 1, characterized in that: Both the front and rear sides of the door frame (2) are provided with baffles (6), and each of the front and rear baffles (6) is rotatably connected with at least two first ball bearings. The opposite sides of the first ball bearings are in contact with the front and back of the roller shutter door body (43).

6. A roller shutter door with stable connection according to claim 1, characterized in that: The bottom wall of the inner cavity of the door frame (2) is provided with a buffer rubber layer (7), and the upper surface of the buffer rubber layer (7) is in contact with the bottom end of the roller shutter door body (43).

7. A roller shutter door with stable connection according to claim 1, characterized in that: The door frame (2) has reinforcing plates (8) on both the front and back sides of the inner wall of the left and right sides. Each of the front and back reinforcing plates (8) is rotatably connected to a number of no less than two second ball bearings (9). The opposite sides of the second ball bearings (9) are in contact with the front and back sides of the roller shutter door body (43).

8. A roller shutter door with stable connection according to claim 3, characterized in that: The fixing grooves (51) on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal central axis of the door frame (2).

Images