Automatic opening device for roller shutter door of fire fighting truck

Abstract

The utility model discloses a fire fighting truck roller shutter door automatic opening device, and particularly relates to the technical field of fire fighting equipment, the fire fighting truck roller shutter door automatic opening device comprises a mounting frame, the top of the mounting frame is fixedly provided with an adjusting mechanism, one side of the adjusting mechanism is fixedly provided with a rolling mechanism, one side of the rolling mechanism is fixedly connected with an inhaul cable, and the inhaul cable is fixedly connected with a roller shutter door. A transmission assembly is fixedly installed on one side of the installation frame, an output shaft of the transmission assembly is fixedly connected with a winch through a coupler, the winding roller is rotationally installed on the top of the installation frame, and one end of the inhaul cable is fixedly installed on the outer wall of the winch. According to the automatic opening device for the fire fighting truck roller shutter door, a second mounting frame is pulled to the side close to the adjusting mechanism through an arranged spring, then an inhaul cable is pulled to move to the side close to the adjusting mechanism, in the process, through cooperation between the inhaul cable and a winch, a winding roller is driven to rotate, and then the roller shutter door is wound on the outer wall of the winding roller; and the roller shutter door can be quickly opened.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to an automatic opening device for fire truck roller shutter doors. Background Technology

[0002] The automatic opening device for fire truck roller shutter doors is a special piece of equipment integrated into fire trucks. It automates the operation of the roller shutter door through components such as motors, controllers, and sensors. In emergencies, this device can quickly respond to commands or sensor signals, ensuring that the roller shutter door opens rapidly and smoothly so that firefighters can immediately access the necessary equipment for rescue operations.

[0003] Existing automatic opening devices for fire truck roller shutters control the raising and lowering of the shutters via motors. While this meets the requirements to some extent, in actual use, it has been found that motor-controlled roller shutters require time to reach full speed and decelerate to a complete stop after receiving a stop command. This can result in the roller shutters not opening or closing quickly enough, especially in emergency situations where every second is crucial. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic opening device for fire truck roller shutter doors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic opening device for a fire truck roller shutter door, comprising a mounting frame, an adjusting mechanism fixedly mounted on the top of the mounting frame, a winding mechanism fixedly mounted on one side of the adjusting mechanism, a pull cable fixedly connected to one side of the winding mechanism, a transmission assembly fixedly mounted on one side of the mounting frame, a winch fixedly connected to the output shaft of the transmission assembly via a coupling, a winding roller fixedly connected to one side of the winch, the winding roller being rotatably mounted on the top of the mounting frame, one end of the pull cable being fixedly mounted on the outer wall of the winch, the winding mechanism comprising a second mounting frame and a third mounting frame, the pull cable being fixedly connected to one side of the second mounting frame, the third mounting frame being fixedly connected to one side of the adjusting mechanism, a spring being fixedly connected to one side of the second mounting frame, and the spring being fixedly connected to one side of the second mounting frame.

[0006] Preferably, a limiting sleeve is fixedly installed on one side of the second mounting bracket, and a limiting post is fixedly connected to one side of the third mounting bracket, with the limiting post slidably installed inside the limiting sleeve.

[0007] Preferably, limiting protrusions are fixedly installed on both the left and right sides of the limiting post, and limiting grooves are opened on both the left and right sides of the limiting sleeve, with the limiting protrusions slidably installed inside the limiting grooves.

[0008] Preferably, a guide wheel is rotatably mounted on the top of the mounting frame, and the cable is sleeved and mounted on the outer wall of the guide wheel.

[0009] Preferably, the adjustment mechanism includes a first mounting bracket, which is fixedly mounted on the top of the mounting frame. A screw is rotatably mounted on the top of the first mounting bracket, and a mounting block is threadedly connected to the outer wall of the screw. The mounting block is slidably mounted on the top of the first mounting bracket and is fixedly connected to one side of the third mounting bracket.

[0010] Preferably, a motor is fixedly mounted on one side of the first mounting bracket, and the output shaft of the motor is fixedly connected to one side of the screw via a coupling.

[0011] Preferably, two sets of limiting rods are fixedly installed on the top of the first mounting bracket, and the mounting block is slidably installed inside the two sets of limiting rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the automatic opening device for the fire truck roller shutter door;

[0013] 1. The second mounting bracket is pulled closer to the adjustment mechanism by the spring, which in turn pulls the cable to move closer to the adjustment mechanism. During this process, the cable and winch work together to rotate the winding roller, which in turn rolls the shutter door onto the outer wall of the winding roller, quickly opening the shutter door. The shutter door is closed by rotating the winch through the transmission component. In summary, once the brake is released or the opening mechanism is activated, the elastic potential energy of the spring can be immediately converted into kinetic energy, causing the shutter door to start moving quickly. It responds to the trigger mechanism almost instantly, without waiting for the motor to accelerate to the working speed.

[0014] 2. Through the cooperation between the screw, the first mounting bracket, and the mounting block, the screw can rotate and drive the mounting block to move at the top of the first mounting bracket. This, in turn, changes the fixed position of the third mounting bracket at the top of the mounting frame, ultimately changing the spring tension. This allows personnel to adjust the speed of the roller shutter door according to specific needs. For example, a faster speed can be selected in an emergency, while a slower and quieter operating mode can be selected in a non-emergency situation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the winding mechanism of this utility model;

[0018] Figure 4This is a schematic diagram of the adjustment mechanism of this utility model.

[0019] In the diagram: 1. Mounting frame; 2. Adjustment mechanism; 201. First mounting bracket; 202. Motor; 203. Screw; 204. Mounting block; 205. Limiting rod; 3. Winding mechanism; 301. Second mounting bracket; 302. Third mounting bracket; 303. Spring; 304. Limiting sleeve; 305. Limiting post; 306. Limiting protrusion; 307. Limiting groove; 4. Cable; 5. Transmission assembly; 6. Winch; 7. Winding roller; 8. Guide wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3This utility model provides a technical solution: an automatic opening device for a fire truck roller shutter door, including a mounting frame 1, an adjusting mechanism 2 fixedly mounted on the top of the mounting frame 1, a winding mechanism 3 fixedly mounted on one side of the adjusting mechanism 2, a pull cable 4 fixedly connected to one side of the winding mechanism 3, a transmission assembly 5 fixedly mounted on one side of the mounting frame 1, a winch 6 fixedly connected to the output shaft of the transmission assembly 5 via a coupling, a winding roller 7 fixedly connected to one side of the winch 6, the winding roller 7 being rotatably mounted on the top of the mounting frame 1, one end of the pull cable 4 being fixedly mounted on the outer wall of the winch 6, the winding mechanism 3 including a second mounting bracket 301 and a third mounting bracket 302, the pull cable 4 being fixedly connected to one side of the second mounting bracket 301, the third mounting bracket 302 being fixedly connected to one side of the adjusting mechanism 2, and a spring 303 fixedly connected to one side of the second mounting bracket 301. On one side of the mounting frame 1, a limiting sleeve 304 is fixedly installed on one side of the second mounting frame 301, and a limiting post 305 is fixedly connected to one side of the third mounting frame 302. The limiting post 305 is slidably installed inside the limiting sleeve 304. The direction of displacement of the second mounting frame 301 and the third mounting frame 302 is limited by the cooperation between the limiting post 305 and the limiting sleeve 304. Limiting protrusions 306 are fixedly installed on both the left and right sides of the limiting post 305. Limiting grooves 307 are opened on both the left and right sides of the limiting sleeve 304. The limiting protrusions 306 are slidably installed inside the limiting grooves 307. The maximum displacement distance between the second mounting frame 301 and the third mounting frame 302 is limited by the cooperation between the limiting protrusions 306 and the limiting grooves 307. A guide wheel 8 is rotatably installed on the top of the mounting frame 1. The cable 4 is sleeved and installed on the outer wall of the guide wheel 8. The guide wheel 8 guides the cable 4 to ensure the stability of the cable 4 during movement.

[0022] The specific implementation method is as follows: the second mounting bracket 301 is pulled closer to the adjustment mechanism 2 by the spring 303, which in turn pulls the cable 4 to move closer to the adjustment mechanism 2. During this process, through the cooperation between the cable 4 and the winch 6, the winding roller 7 is driven to rotate, thereby causing the roller shutter door to be wound on the outer wall of the winding roller 7, quickly opening the roller shutter door. The roller shutter door is closed by driving the winch 6 to rotate through the transmission component 5. In summary, once the braking or opening mechanism is released, the elastic potential energy of the spring 303 can be immediately converted into kinetic energy, causing the roller shutter door to start moving quickly, responding to the trigger mechanism almost instantly, without waiting for the motor to accelerate to the working speed.

[0023] Please see Figure 1-4This utility model provides a technical solution: an automatic opening device for a fire truck roller shutter door. The adjusting mechanism 2 includes a first mounting frame 201, which is fixedly installed on the top of the mounting frame 1. A screw 203 is rotatably mounted on the top of the first mounting frame 201. An mounting block 204 is threadedly connected to the outer wall of the screw 203. The mounting block 204 is slidably mounted on the top of the first mounting frame 201. The mounting block 204 is fixedly connected to one side of a third mounting frame 302. A motor 202 is fixedly mounted on one side of the first mounting frame 201. The output shaft of the motor 202 is fixedly connected to one side of the screw 203 through a coupling. The motor 202 provides power for the rotation of the screw 203. Two sets of limiting rods 205 are fixedly mounted on the top of the first mounting frame 201. The mounting block 204 is slidably mounted inside the two sets of limiting rods 205, which restrict the movement trajectory of the mounting block 204.

[0024] The specific implementation method is as follows: through the cooperation between the screw 203, the first mounting bracket 201, and the mounting block 204, the screw 203 can rotate to drive the mounting block 204 to move at the top of the first mounting bracket 201. In turn, the mounting block 204 changes the fixed position of the third mounting bracket 302 at the top of the mounting frame 1, thereby changing the tension of the spring 303. This allows personnel to adjust the speed of the roller shutter door according to specific needs. For example, a faster speed can be selected in an emergency, while a slower and quieter operating mode can be selected in a non-emergency situation.

[0025] Working principle: When using the automatic opening device for the fire truck roller shutter door, the second mounting bracket 301 is pulled closer to the adjusting mechanism 2 by the spring 303, which in turn pulls the cable 4 to move closer to the adjusting mechanism 2. During this process, through the cooperation between the cable 4 and the winch 6, the winding roller 7 is rotated, which causes the roller shutter door to be rolled up on the outer wall of the winding roller 7, quickly opening the roller shutter door. The roller shutter door is closed by the transmission component 5 driving the winch 6 to rotate. In summary, once the braking or opening mechanism is released, the elastic potential energy of the spring 303 can be immediately converted into kinetic energy, causing the roller shutter door to start moving quickly. It responds to the trigger mechanism almost instantly, without waiting for the motor to accelerate to the working speed.

[0026] The direction of displacement of the second mounting bracket 301 and the third mounting bracket 302 is limited by the cooperation between the limiting post 305 and the limiting sleeve 304. The maximum displacement distance between the second mounting bracket 301 and the third mounting bracket 302 is limited by the cooperation between the limiting protrusion 306 and the limiting groove 307. The cable 4 is guided by the guide wheel 8 to ensure the stability of the cable 4 during movement.

[0027] Through the cooperation between the screw 203, the first mounting bracket 201, and the mounting block 204, the screw 203 can rotate to drive the mounting block 204 to move at the top of the first mounting bracket 201. This, in turn, changes the fixed position of the third mounting bracket 302 at the top of the mounting frame 1, thereby changing the tension of the spring 303. This allows personnel to adjust the speed of the roller shutter door according to specific needs. For example, a faster speed can be selected in an emergency, while a slower and quieter operating mode can be selected in a non-emergency situation.

[0028] The motor 202 provides power for the rotation of the screw 203, and the limit rod 205 restricts the movement trajectory of the mounting block 204.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic opening device for a fire truck roller shutter door, comprising a mounting frame (1), an adjusting mechanism (2) fixedly mounted on the top of the mounting frame (1), a winding mechanism (3) fixedly mounted on one side of the adjusting mechanism (2), a pull cable (4) fixedly connected to one side of the winding mechanism (3), a transmission assembly (5) fixedly mounted on one side of the mounting frame (1), a winch (6) fixedly connected to the output shaft of the transmission assembly (5) via a coupling, a winding roller (7) fixedly connected to one side of the winch (6), the winding roller (7) being rotatably mounted on the top of the mounting frame (1), and one end of the pull cable (4) fixedly mounted on the outer wall of the winch (6), characterized in that: The winding mechanism (3) includes a second mounting frame (301) and a third mounting frame (302). The cable (4) is fixedly connected to one side of the second mounting frame (301). The third mounting frame (302) is fixedly connected to one side of the adjusting mechanism (2). A spring (303) is fixedly connected to one side of the second mounting frame (301). The spring (303) is fixedly connected to one side of the second mounting frame (301).

2. The automatic opening device for a fire truck roller shutter door according to claim 1, characterized in that, A limiting sleeve (304) is fixedly installed on one side of the second mounting bracket (301), and a limiting post (305) is fixedly connected to one side of the third mounting bracket (302). The limiting post (305) is slidably installed inside the limiting sleeve (304).

3. The automatic opening device for a fire truck roller shutter door according to claim 2, characterized in that, The limiting post (305) has a limiting protrusion (306) fixedly installed on both the left and right sides, and the limiting sleeve (304) has a limiting groove (307) opened on both the left and right sides, and the limiting protrusion (306) is slidably installed inside the limiting groove (307).

4. The automatic opening device for a fire truck roller shutter door according to claim 1, characterized in that, The top of the mounting frame (1) is rotatably mounted with a guide wheel (8), and the cable (4) is sleeved and mounted on the outer wall of the guide wheel (8).

5. The automatic opening device for a fire truck roller shutter door according to claim 1, characterized in that, The adjustment mechanism (2) includes a first mounting bracket (201), which is fixedly mounted on the top of the mounting frame (1). A screw (203) is rotatably mounted on the top of the first mounting bracket (201). A mounting block (204) is threadedly connected to the outer wall of the screw (203). The mounting block (204) is slidably mounted on the top of the first mounting bracket (201). The mounting block (204) is fixedly connected to one side of the third mounting bracket (302).

6. The automatic opening device for a fire truck roller shutter door according to claim 5, characterized in that, A motor (202) is fixedly mounted on one side of the first mounting bracket (201), and the output shaft of the motor (202) is fixedly connected to one side of the screw (203) via a coupling.

7. The automatic opening device for a fire truck roller shutter door according to claim 5, characterized in that, Two sets of limiting rods (205) are fixedly installed on the top of the first mounting bracket (201), and the mounting block (204) is slidably installed inside the two sets of limiting rods (205).

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