Roller shutter door with chain type structure

Abstract

The utility model relates to a roller shutter door with a chain type structure, which comprises two door curtain guide rails and further comprises a chain arranged in the two door curtain guide rails. The bidirectional driving mechanism is meshed with the inner top end and comprises a first chain wheel, and the first chain wheel is meshed with the inner top end of the chain; two first chain wheels are fixed to the two ends of the double-shaft motor, rotating rods are fixed to one sides of the two first chain wheels, and first motor shafts are fixed to the ends, far away from the first chain wheels, of the rotating rods. The double-shaft motor, the rotating rods and the first chain wheels are combined, and the double-shaft motor can drive the two rotating rods and the first chain wheels to rotate at the same time; the two first chain wheels can synchronously drive the chains and the door curtain on the two sides to move, a turbine transmission, a transmission gear and the like do not need to be arranged, the driving motor and the second chain are arranged at the bottom of the door curtain guide rail, and in the rotating process of the double-shaft motor, the driving motor can be synchronously started to drive the second chain wheel to rotate; and the moving speed and stability of the door curtain can be further improved.

Description

Technical Field

[0001] The utility model relates to the field of rolling shutter doors, in particular to a chain-type rolling shutter door. Background Art

[0002] There are two types of rolling shutter doors: manual and electric. For manual rolling shutter doors, a scroll spring device is installed on the scroll shaft at the top of the door curtain. When the door curtain rises, the scroll shaft is driven to rotate by the retraction force of the scroll spring. When the door curtain falls, although the scroll spring is stretched, it does not generate any force. The descent completely relies on external force to pull the rolling shutter door down. For electric rolling shutter doors, the motor is installed on one side of the scroll shaft outside the top of the door curtain. It is connected to the scroll shaft by a sprocket structure through a worm gear transmission. When the door curtain is raised or lowered, the scroll shaft is driven by the motor to rotate. Since the force of this type of rolling shutter door is only on one side of the roll side, the rotation process of the scroll shaft will generate a large torque, one end is rolled tightly, and the other end is rolled loose. The door curtain cannot be completely synchronized when rising or falling, causing the door curtain to tilt. This tilt is especially obvious for rolling shutter doors with larger spans. When the door curtain rises or falls, it is easy to get stuck in the guide rail due to the tilt and damage the door curtain, which greatly affects the service life of the rolling shutter door.

[0003] According to the published patent 201820529613.8, a chain-type dual-purpose rolling shutter door includes a door curtain, a scroll shaft, a scroll spring, a door curtain guide rail, a transmission shaft, a motor, a worm gear transmission, a chain, a chain guard, a pin, a gear, a remote control device and an electrical control device. A chain guard is installed outside the door curtain guide rails on both sides of the door curtain, and there is a gear at the upper and lower ends of the chain guard. The two chains are respectively engaged with four gears. The rolling shutter door is raised and lowered by the chain, so that the rolling shutter door can maintain balance without any tilting. It is modified on the basis of the existing manual rolling shutter door and can be used manually and electrically. In the process of realizing the utility model, the inventor found that at least one of the prior art The following problems have not been solved: although the rolling door can maintain balance without any tilting, and it is modified on the basis of the existing manual rolling door, it can avoid wasting and damaging the existing manual rolling door, and can be used both manually and electrically. When the electric function fails, it is easy to disengage from the automatic lifting device and restore manual operation. The obvious effect solves the problem that the door curtain is easily stuck on the guide rail due to tilting when rising or falling, which greatly affects the service life of the rolling door. However, during use, the traditional chain-type rolling door still needs to use transmission components such as turbine transmissions and transmission gears to achieve synchronous movement of both sides of the door curtain, resulting in a relatively slow start-up speed of the door curtain. For this reason, a new technical solution needs to be designed to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a chain-type rolling shutter door to solve the technical problem that the current traditional chain-type rolling shutter door still needs to adopt transmission components such as a turbine transmission and a transmission gear to achieve synchronous movement of both sides of the door curtain, resulting in a relatively slow starting speed of the door curtain.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a chain-type structure rolling shutter door, including two door curtain guide rails, and also including:

[0006] Chain, set inside the two door curtain rails;

[0007] A bidirectional drive mechanism is engaged at the inner top end, the bidirectional drive mechanism comprises a first sprocket, the first sprocket is engaged at the inner top end of the chain;

[0008] A rotating rod is fixed on one side of each of the two first sprockets, a first motor shaft is fixed on one end of the rotating rod away from the first sprocket, and a dual-axis motor is rotatably connected to one end of the first motor shaft away from the rotating rod.

[0009] Preferably, a second sprocket is meshed at the bottom end of the chain, and a second motor shaft is fixed to one side of the second sprocket.

[0010] Preferably, the end of the second motor shaft away from the second sprocket is connected to a driving motor, and the end of the driving motor away from the second motor shaft is installed with a door curtain guide rail.

[0011] Preferably, square grooves are provided at both front and rear ends of one side of the door curtain guide rail, and infrared reflecting light bars are installed inside the square grooves.

[0012] Preferably, a motor synchronization controller is installed at the bottom of one side of the door curtain guide rail, and the motor synchronization controller is connected to the dual-axis motor and the drive motor.

[0013] Preferably, a door curtain body is installed outside the chain.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can utilize the dual-axis motor, the rotating rod and the first sprocket to simultaneously drive the two rotating rods and the first sprocket to rotate through the dual-axis motor, and can synchronously drive the chains and the door curtain on both sides to move through the two first sprockets, without the need to set a turbine transmission and a transmission gear, etc., and a driving motor and a second chain are arranged at the bottom of the door curtain guide rail. During the rotation of the dual-axis motor, the driving motor can be synchronously started to drive the second sprocket to rotate, which can further improve the speed and stability of the door curtain movement, and solves the technical problem that the traditional chain-type rolling shutter door still needs to adopt transmission components such as a turbine transmission and a transmission gear to achieve synchronous movement of the two sides of the door curtain, resulting in a relatively slow starting speed of the door curtain.

[0016] 2. The utility model combines the door curtain guide rail, the square groove and the infrared counter-radiation light bar, and can set the infrared counter-radiation light bar at the front and rear position of one side of the door curtain guide rail. After the infrared counter-radiation light bar on both sides is connected to the control terminal, the infrared counter-radiation light bar senses that the infrared counter-radiation is blocked, and the control terminal controls the dual-axis motor and the drive motor to stop, thereby realizing the two-way induction stop of the door curtain guide rail and improving the safety of the door curtain guide rail in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the side structure of the door curtain guide rail of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0020] In the figure: 1. Curtain guide rail; 101. Curtain body; 2. Double-axis motor; 201. First motor shaft; 202. Rotating rod; 203. Second sprocket; 204. First sprocket; 205. Chain; 206. Driving motor; 207. Second motor shaft; 208. Motor synchronization controller; 3. Square slot; 301. Infrared counter-beam light bar. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Example 1: A chain-type rolling shutter door, see Figures 1 to 3, including two door curtain guide rails 1, and also including: a chain 205, which is arranged inside the two door curtain guide rails 1; a two-way driving mechanism, which is engaged at the internal top, and the two-way driving mechanism includes a first sprocket 204, and the first sprocket 204 is engaged at the internal top of the chain 205; a rotating rod 202 is fixed on one side of the two first sprockets 204, and a first motor shaft 201 is fixed on the end of the rotating rod 202 away from the first sprocket 204, and a double-axis motor 2 is rotatably connected to the end of the first motor shaft 201 away from the rotating rod 202. First, turn on the double-axis motor 2, and the double-axis motor 2 drives the first motor shaft 201, and the first motor shaft 201 drives the rotating rod 2 02, the rotating rod 202 drives the first sprocket 204, the first sprocket 204 will drive the chain 205 to move, the chain 205 will drive the door curtain body 101 to move, and during the rotation of the dual-axis motor 2, the drive motor 206 can be started synchronously to drive the second motor shaft 207 to rotate, and the second motor shaft 207 will drive the second sprocket 203 to rotate, which can further improve the speed and stability of the door curtain movement, and solve the technical problem that the traditional chain 205 structure rolling shutter door still needs to adopt transmission components such as turbine transmission and transmission gears to achieve synchronous movement of both sides of the door curtain, resulting in a relatively slow starting speed of the door curtain.

[0023] For details, see Figure 3 A second sprocket 203 is meshed at the bottom end of the chain 205 , and a second motor shaft 207 is fixed to one side of the second sprocket 203 .

[0024] For further information, see Figure 3 One end of the second motor shaft 207 away from the second sprocket 203 is connected to the driving motor 206 , and one end of the driving motor 206 away from the second motor shaft 207 is installed with the door curtain guide rail 1 .

[0025] It is worth noting that see Figure 2 A square groove 3 is provided at both the front and rear ends of one side of the door curtain guide rail 1, and an infrared counter-beam light bar 301 is installed inside the square groove 3. The infrared counter-beam light bar 301 can be set at the front and rear positions of one side of the door curtain guide rail 1, and infrared counter-beam light bars 301 on both sides are infrared-beamed. After the infrared counter-beam light bars 301 are connected to the control terminal, the infrared counter-beam light bar 301 senses that the infrared counter-beam is blocked, and the control terminal controls the dual-axis motor 2 and the drive motor 206 to stop, thereby realizing the two-way induction stop of the door curtain guide rail 1, and improving the safety of the door curtain guide rail 1 in use.

[0026] It is worth noting that see Figure 2 A motor synchronous controller 208 is installed at the bottom of one side of the door curtain guide rail 1, and the motor synchronous controller 208 is connected to the dual-axis motor 2 and the driving motor 206.

[0027] It is worth mentioning that see Figure 1The door curtain body 101 is installed outside the chain 205.

[0028] When using a chain-type rolling shutter door, first open the double-axis motor 2, the double-axis motor 2 drives the first motor shaft 201, the first motor shaft 201 drives the rotating rod 202, the rotating rod 202 drives the first sprocket 204, the first sprocket 204 drives the chain 205 to move, and the chain 205 drives the door curtain body 101 to move. During the rotation of the double-axis motor 2, the drive motor 206 can be synchronously started to drive the second motor shaft 207 to rotate, and the second motor shaft 207 drives the second sprocket 203 to rotate, which can further improve the speed and stability of the door curtain movement. Since the infrared counter-radiation light bar 301 is set at the front and rear positions on one side of the door curtain guide rail 1, the infrared counter-radiation light bars 301 on both sides are infrared-radiated. After the infrared counter-radiation light bar 301 is connected to the control terminal, the infrared counter-radiation light bar 301 senses that the infrared counter-radiation is blocked, and the control terminal controls the double-axis motor 2 and the drive motor 206 to stop, thereby realizing the two-way induction stop of the door curtain guide rail 1, thereby improving the safety of the door curtain guide rail 1 in use.

[0029] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A chain-type rolling shutter door, comprising two door curtain guide rails (1), characterized in that: Also includes: A chain (205) is arranged inside the two door curtain guide rails (1); A bidirectional driving mechanism is engaged at the inner top end, the bidirectional driving mechanism comprises a first sprocket (204), the first sprocket (204) is engaged at the inner top end of the chain (205); A rotating rod (202) is fixed to one side of each of the two first sprockets (204); a first motor shaft (201) is fixed to one end of the rotating rod (202) away from the first sprocket (204); and a dual-axis motor (2) is rotatably connected to one end of the first motor shaft (201) away from the rotating rod (202).

2. A chain-type rolling shutter door as claimed in claim 1, characterized in that: A second sprocket (203) is meshed at the bottom end of the chain (205), and a second motor shaft (207) is fixed to one side of the second sprocket (203).

3. A chain-type rolling shutter door as claimed in claim 2, characterized in that: One end of the second motor shaft (207) away from the second sprocket (203) is connected to a driving motor (206), and one end of the driving motor (206) away from the second motor shaft (207) is installed with a door curtain guide rail (1).

4. The chain-type rolling shutter door according to claim 1, characterized in that: A square groove (3) is provided at both the front and rear ends of one side of the door curtain guide rail (1), and an infrared reflecting light bar (301) is installed inside the square groove (3).

5. The chain-type rolling shutter door according to claim 1, characterized in that: A motor synchronization controller (208) is installed at the bottom of one side of the door curtain guide rail (1), and the motor synchronization controller (208) is connected to the double-axis motor (2) and the drive motor (206).

6. The chain-type rolling shutter door according to claim 1, characterized in that: A door curtain body (101) is installed outside the chain (205).

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