A scissor drive telescopic fire extinguishing device

Abstract

The utility model discloses a kind of scissor fork drive telescopic fire extinguishing devices, specifically related to fire extinguishing technical field.Scissor fork drive telescopic fire extinguishing device includes: the telescopic pipe assembly of scalable is fixed in the top of the mounting plate, its inside is equipped with fire extinguishing agent passage;Telescopic pipe assembly one end is communicated with spray head, and the other end is connected with fire extinguishing agent source;Scissor fork mechanism is equipped on the mounting plate, and its front end is fixed with telescopic pipe assembly, for driving telescopic pipe assembly telescopic;Telescopic pipe assembly is hard material, for supporting the free end of scissor fork mechanism.The scissor fork drive telescopic fire extinguishing device provided by the utility model is driven telescopic pipe assembly telescopic by scissor fork mechanism, and cooperate motor to drive rotating shaft rotation, make spray head horizontal positive and negative rotation 180 °, realize three-dimensional space dynamic coverage, eliminate the problem of fire extinguishing dead angle of traditional fixed sprinkler system.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing technology, and in particular to a scissor-driven telescopic fire extinguishing device. Background Technology

[0002] With the increasing popularity of electric vehicles (such as electric bicycles and electric cars), the fire risk in large carports and underground garages where electric vehicles are parked has increased significantly. Because electric vehicle batteries are prone to ignition when charging or short-circuiting, and the fire spreads rapidly, traditional fixed fire extinguishing devices (such as sprinkler systems) have the following technical drawbacks: the spray angle and distance of fixed nozzles cannot be dynamically adjusted, making it difficult to accurately cover the fire source, especially in narrow or structurally complex carports where dead zones can easily form.

[0003] Therefore, it is necessary to provide a scissor-driven telescopic fire extinguishing device to solve the above-mentioned technical problems. Utility Model Content

[0004] In response to the above situation and to overcome the defects of the existing technology, this utility model provides a scissor-driven telescopic fire extinguishing device. The telescopic pipe assembly is driven to extend and retract by a scissor mechanism, and the rotating shaft is driven by a motor to rotate, so that the nozzle can rotate 180° horizontally in both directions, thereby achieving dynamic coverage in three-dimensional space and eliminating the problem of fire extinguishing dead zones in traditional fixed sprinkler systems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A scissor-driven telescopic fire extinguishing device includes: a telescopic tube assembly fixed to the top of the mounting plate, which has an extinguishing agent channel inside; one end of the telescopic tube assembly is connected to a nozzle, and the other end is connected to an extinguishing agent source; a scissor mechanism is provided on the mounting plate, the front end of which is fixed to the telescopic tube assembly for driving the telescopic tube assembly to extend and retract; the telescopic tube assembly is made of rigid material and is used to support the free end of the scissor mechanism.

[0007] Preferably, the scissor lift mechanism is controlled to extend and retract via a telescopic rod, which is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0008] Preferably, the device further includes a mounting box, a rotating shaft is rotatably mounted on the bottom of the mounting box, the bottom end of the rotating shaft is fixed to the mounting plate, the top of the rotating shaft extends into the interior of the mounting box, a first gear fixed to the rotating shaft is provided inside the mounting box, a motor is fixedly mounted inside the mounting box, a second gear is mounted on the output shaft of the motor, and the first gear meshes with the second gear.

[0009] Preferably, the motor can rotate in both directions, causing the telescopic tube assembly to rotate in both directions, thus achieving 180° rotation of the nozzle.

[0010] Preferably, the rotating shaft has a hollow structure, with the top connected to the extinguishing agent source via a transfer pipe and the bottom connected to the telescopic pipe assembly via a connecting pipe.

[0011] Preferably, the telescopic tube assembly is composed of a rear end tube, multiple intermediate tubes, and a front end tube connected together. The front end tube is connected to the nozzle. The multiple intermediate tubes have the same structure but different diameters. The rear end tube is fixed to the mounting plate and is also connected to a connecting tube. A limit ring is provided at one end of the rear end tube and the multiple intermediate tubes. A slip ring is integrally formed at one end of the front end tube and the multiple intermediate tubes. The tubes are slidably sealed through the slip rings. The stable connection between the tubes is ensured by the cooperation between the limit rings and the slip rings.

[0012] Preferably, it also includes a PLC controller, a smoke sensor, and an infrared thermal imaging camera for automatically detecting fire sources and controlling the extension, rotation, and extinguishing agent spraying.

[0013] Preferably, the extinguishing agent source includes water, dry powder, and gaseous extinguishing agent pipelines, and each pipeline is equipped with a PLC-controlled solenoid valve.

[0014] Preferably, the spacing between multiple devices is set to be slightly greater than twice the sum of the lengths of the telescopic tube assembly when it is fully extended, to ensure that the extinguishing agent coverage has no overlapping dead corners.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) This utility model drives the telescopic tube assembly to extend and retract through a scissor mechanism, and in conjunction with a motor to drive the rotating shaft to rotate, so that the nozzle can rotate 180° horizontally in both directions, thereby achieving dynamic coverage in three-dimensional space and eliminating the problem of fire extinguishing dead angles in traditional fixed sprinkler systems.

[0017] (2) In this utility model, the telescopic tube assembly serves as both a channel for the flow of extinguishing agent and a rigid support for the free end of the scissor mechanism, preventing it from tilting or breaking due to single-end fixing, and ensuring a smooth telescopic process.

[0018] (3) The internal structure of the transfer shaft of this utility model is a hollow channel that is connected to the connecting pipe. The extinguishing agent is directly delivered to the nozzle through the transfer pipe without the need for additional hose winding, thus avoiding the risk of leakage caused by pipe bending and wear.

[0019] (4) This utility model switches between water, dry powder or gas extinguishing agent sources through a solenoid valve. The PLC controller automatically selects the optimal extinguishing mode according to the fire situation, reducing the waste of extinguishing agent. Attached Figure Description

[0020] Figure 1 A schematic diagram of the scissor-driven telescopic fire extinguishing device provided by this utility model;

[0021] Figure 2A schematic diagram of the scissor-driven telescopic fire extinguishing device provided by this utility model;

[0022] Figure 3 A schematic diagram of the scissor-driven telescopic fire extinguishing device provided by this utility model;

[0023] Figure 4 A schematic diagram of the internal structure of the mounting box in the scissor-driven telescopic fire extinguishing device provided by this utility model;

[0024] Figure 5 This is a cross-sectional view of the shaft.

[0025] Figure 6 This is a cross-sectional view of the telescopic tube assembly.

[0026] Figure 7 This is a structural diagram of the back-end tube, middle tube, and front-end tube.

[0027] The corresponding names of the reference numerals in the attached drawings are as follows: 1. Mounting plate; 2. Scissor mechanism; 3. Telescopic rod; 4. Telescopic tube assembly; 5. Nozzle; 6. Connecting tube; 7. Mounting box; 8. Rotating shaft; 9. First gear; 10. Motor; 11. Second gear; 12. Transfer tube; 13. Rear end tube; 14. Middle tube; 15. Front end tube; 16. Limiting ring; 17. Slip ring. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0029] Example 1

[0030] like Figure 1-7As shown, the scissor-driven telescopic fire extinguishing device provided by this utility model includes: a mounting plate 1, a telescopic tube assembly 4 fixed to the top of the mounting plate 1, a channel for the flow of extinguishing agent inside the telescopic tube assembly 4, a nozzle 5 connected to the telescopic tube assembly 4 at the end away from the mounting plate 1, and a connecting pipe 6 at the end of the telescopic tube assembly 4 away from the nozzle 5. An extinguishing agent source is connected to the connecting pipe 6 to deliver the extinguishing agent into the telescopic tube assembly 4. The extinguishing agent flows in the telescopic tube assembly 4 and is sprayed out through the nozzle 5, thereby achieving the fire extinguishing effect. The mounting plate 1 also has a scissor mechanism 2. The telescopic tube assembly 4 and the scissor mechanism... The front end of mechanism 2 is fixed. The scissor mechanism 2 serves as a power source to realize the extension and retraction of the telescopic tube assembly 4. When the scissor mechanism 2 extends, it drives the telescopic tube assembly 4 to extend. When the scissor mechanism 2 retracts, it drives the telescopic tube assembly 4 to retract. The telescopic tube assembly 4 is made of rigid material and can support the scissor mechanism 2. Because the fixed end of the scissor mechanism 2 (the end connected to the mounting plate 1) has only one end, the end of the scissor mechanism 2 away from the mounting plate 1 will tilt downwards. In severe cases, it may break. As the scissor mechanism 2 extends or retracts, the telescopic tube assembly 4 supports the scissor mechanism 2, preventing the scissor mechanism 2 from tilting.

[0031] In this embodiment, when a fire occurs inside the electric vehicle shed, the scissor mechanism 2 drives the telescopic tube assembly 4 to extend a certain length to reach or approach the fire source. The nozzle 5 sprays extinguishing agent towards the fire source to achieve the fire extinguishing effect. It should be noted that the number of these devices installed in the electric vehicle shed should be set according to the actual situation. In order to achieve more comprehensive fire extinguishing, the distance between two of these devices should be slightly greater than (within 10cm) twice the extension distance of the telescopic tube assembly 4. That is, after the two extension tube assemblies 4 are fully extended, there is a certain space between them. When the extinguishing agent is sprayed, it will cover this space to achieve a more comprehensive fire extinguishing effect. In this embodiment, the telescopic rod assembly 4 and the scissor mechanism 2 play a complementary role. The scissor mechanism 2 can drive the telescopic tube assembly 4 to extend and retract. The telescopic tube assembly 4 has a supporting role for the scissor mechanism 2. At the same time, the telescopic tube assembly 4 also serves as a flow channel for the extinguishing agent, eliminating the need for a separate pipe and avoiding the cumbersome process of storing or releasing pipes.

[0032] Example 2

[0033] like Figure 3As shown, the scissor lift mechanism 2 is located at the bottom of the mounting plate 1. The scissor lift mechanism 2 is composed of multiple hinged rods. One end of the hinged rod is hinged to the mounting plate 1, and the other end of the hinged rod is hinged to a telescopic rod 3 fixedly installed below the mounting plate 1. The telescopic rod 3 is used to control the extension length of the scissor lift mechanism 2. The telescopic rod 3 is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. When the scissor lift mechanism 2 extends or shortens, it is only necessary to control the extension or shortening of the telescopic rod 3. In this embodiment, when the telescopic rod 3 extends, the scissor lift mechanism 2 shortens, and vice versa.

[0034] Example 3

[0035] like Figure 4 As shown, it also includes a mounting box 7, with a rotating shaft 8 rotatably mounted on the bottom of the mounting box 7. The bottom end of the rotating shaft 8 is fixed to the mounting plate 1, and the top of the rotating shaft 8 extends into the interior of the mounting box 7. A first gear 9, fixed to the rotating shaft 8, is provided inside the mounting box 7. A motor 10 is fixedly mounted inside the mounting box 1, and a second gear 11 is mounted on the output shaft of the motor 10. The first gear 9 and the second gear 11 mesh. When the motor 10 starts, the motor 10 rotates and drives the second gear 11 to rotate. The rotation of the second gear 11 drives the first gear 9 to rotate. The rotation of the first gear 9 drives the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the mounting plate 1 to rotate. The rotation of the mounting plate 1 drives the telescopic tube assembly 4, the scissor mechanism 2 to rotate, and the nozzle 5 to rotate around the rotating shaft 8. After the nozzle 5 rotates, the fire extinguishing position can be adjusted to adapt to different fire points.

[0036] Furthermore, the motor 10 can achieve forward and reverse rotation, enabling the telescopic tube assembly 4 to achieve forward and reverse rotation, with a rotation angle of 180° in both cases. That is, the telescopic rod 3 also rotates 180°. The pipe or cable connected to the telescopic rod 3 needs to be longer to meet the requirement of 180° rotation.

[0037] In this implementation, the telescopic tube assembly 4 can rotate 180° in both directions, achieving 360° fire extinguishing without blind spots.

[0038] Example 4

[0039] like Figure 4-5 As shown, the rotating shaft 8 is hollow inside, and the connecting pipe 6 is connected to the inside of the rotating shaft 8. A rigid transfer pipe 12 is rotatably and sealed on the top of the rotating shaft 8. The transfer pipe 12 is connected to the inside of the rotating shaft 8. In use, the transfer pipe 12 is connected to the extinguishing agent source. The extinguishing agent source enters the inside of the rotating shaft 8 through the transfer pipe 12, and then enters the inside of the connecting pipe 6 through the inside of the rotating shaft 8. In this device, the rotating shaft 8 can serve as a flow channel for the extinguishing agent, making it convenient for subsequent equipment to rotate.

[0040] Example 5

[0041] like Figure 6-7 As shown, the telescopic pipe assembly 4 includes a rear end pipe 13, multiple intermediate pipes 14, and a front end pipe 15. The front end pipe 15 is connected to the nozzle 5. The multiple intermediate pipes 14 have the same structure, except that their diameters are different. The rear end pipe 13 is fixed to the mounting plate 1 and is also connected to the connecting pipe 6. A limit ring 16 is provided at one end of the rear end pipe 13 and the multiple intermediate pipes 14. A slip ring 17 is integrally formed at one end of the front end pipe 15 and the multiple intermediate pipes 14. In use, the rear end pipe 13, the multiple intermediate pipes 14, and the front end pipe 15 are nested one inside the other, like a fishing rod, with the front end pipe 15 at the very front and the rear end pipe 13 at the very back. Each slip ring 17 is slidably sealed to the pipe wall it contacts, so that there is no leakage when the extinguishing agent flows inside the telescopic pipe assembly 4. The limit ring 16 and the slip ring 17 cooperate to ensure a stable connection between the pipes.

[0042] This device also includes a smoke sensor, an infrared thermal imaging camera, a PLC controller, and multiple solenoid valves. The smoke sensor and infrared thermal imaging camera monitor the environment in real time and are electrically connected to the PLC controller. The PLC controller is electrically connected to the solenoid valves and the motor 10. The extinguishing agent source can be multiple different types of extinguishing agents, such as water, dry powder, or gas. Multiple extinguishing agent sources are connected to the transfer pipe 12 through different pipelines. Each pipeline is equipped with a solenoid valve to control the flow of the extinguishing agent. When the smoke sensor and infrared thermal imaging camera detect abnormal high temperature or smoke concentration exceeding the threshold, the PLC controller immediately triggers an early warning program and uses an image recognition algorithm to analyze the thermal imaging data to quickly calculate the precise coordinates of the ignition point. At the same time, it sends a signal to start the telescopic rod 3 and / or the motor 10, causing the telescopic pipe assembly 4 to extend and / or rotate around the pivot 8, moving the nozzle 5 above the fire source to maintain the optimal extinguishing position.

[0043] Upon reaching the designated location, the PLC controller dynamically adjusts the fire suppression strategy based on the fire's intensity. For small initial fires, only localized fine water mist nozzles are activated for cooling and suppression; as the fire grows larger, it automatically switches to dry powder or gas extinguishing mode and expands the spray range. This tiered control strategy effectively avoids wasting extinguishing agents and achieves precise fire suppression.

[0044] Working Principle: During use, this device is fixed in a suitable position on the roof. When a fire occurs in the electric vehicle shed or other application areas, the smoke sensor and infrared thermal imaging camera monitor environmental parameters in real time. If abnormally high temperatures or smoke concentrations exceeding a set threshold are detected, a signal is immediately transmitted to the PLC controller. The PLC analyzes the infrared thermal imaging data using an image recognition algorithm to quickly determine the precise location coordinates of the fire source. Subsequently, the PLC issues a control command to activate the telescopic rod 3 (hydraulic cylinder, pneumatic cylinder, or electric push rod) to drive the scissor mechanism 3 to extend, thereby extending the telescopic tube assembly 4 and moving the nozzle 5 to the optimal fire extinguishing position above or near the fire source. If the fire source is not initially directly facing the nozzle 5, the PLC can simultaneously control the motor to rotate, driving the rotating shaft 8 through a gear set. This causes the entire mounting plate 1 and nozzle 5 to rotate 180° in both directions around the shaft, achieving 360° coverage without blind spots.

[0045] The extinguishing agent enters the hollow rotating shaft 8 from the transfer pipe 12, flows through the connecting pipe 6 into the internal channel of the telescopic pipe assembly 4, and is finally sprayed out from the nozzle 5. The PLC dynamically adjusts the extinguishing strategy according to the size of the fire, and switches the extinguishing mode by controlling the solenoid valves on different extinguishing agent pipelines. For small initial fires, fine water mist nozzles can be activated for cooling and suppression; for larger fires, the mode is switched to dry powder or gas extinguishing mode, and the spray range is expanded. Throughout the process, the telescopic pipe assembly 4 not only serves as a delivery channel for the extinguishing agent, but also provides support for the free end of the scissor mechanism 2 due to its rigid material properties, preventing it from tilting or breaking due to single-end fixing, and ensuring the stability and accuracy of the nozzle positioning.

Claims

1. A scissor-driven telescopic fire extinguishing device, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is fixed with a retractable telescopic tube assembly (4), which has a fire extinguishing agent channel inside. One end of the telescopic tube assembly (4) is connected to the nozzle (5), and the other end is connected to the extinguishing agent source; The mounting plate (1) is provided with a scissor mechanism (2), the front end of which is fixed to the telescopic tube assembly (4) for driving the telescopic tube assembly (4) to extend and retract; The telescopic tube assembly (4) is made of rigid material and is used to support the free end of the scissor mechanism (2).

2. The scissor-driven telescopic fire extinguishing device according to claim 1, characterized in that: The scissor mechanism (2) is controlled to extend and retract via a telescopic rod (3), which is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

3. The scissor-driven telescopic fire extinguishing device according to claim 1, characterized in that: It also includes a mounting box (7), on the bottom of which a rotating shaft (8) is rotatably mounted. The bottom end of the rotating shaft (8) is fixed to the mounting plate (1). The top of the rotating shaft (8) extends into the interior of the mounting box (7). A first gear (9) fixed to the rotating shaft (8) is provided inside the mounting box (7). A motor (10) is fixedly mounted inside the mounting box (7). A second gear (11) is mounted on the output shaft of the motor (10). The first gear (9) meshes with the second gear (11).

4. The scissor-driven telescopic fire extinguishing device according to claim 3, characterized in that: The motor (10) can rotate in both directions, causing the telescopic tube assembly (4) to rotate in both directions, and enabling the nozzle (5) to rotate in both directions by 180°.

5. The scissor-driven telescopic fire extinguishing device according to claim 3, characterized in that: The rotating shaft (8) has a hollow structure. The top is connected to the extinguishing agent source through the transfer pipe (12), and the bottom is connected to the telescopic pipe assembly (4) through the connecting pipe (6).

6. The scissor-driven telescopic fire extinguishing device according to claim 1, characterized in that: The telescopic tube assembly (4) is composed of a rear end tube (13), multiple intermediate tubes (14) and a front end tube (15) connected together. The front end tube (15) is connected to the nozzle (5). The multiple intermediate tubes (14) have the same structure but different diameters. The rear end tube (13) is fixed to the mounting plate (1). The rear end tube (13) is also connected to the connecting tube (6). A limit ring (16) is provided at one end of the rear end tube (13) and the multiple intermediate tubes (14). A slip ring (17) is integrally formed at one end of the front end tube (15) and the multiple intermediate tubes (14). The tubes are slidably sealed by the slip ring (17). The limit ring (16) cooperates with the slip ring (17) to ensure a stable connection between the tubes.

7. The scissor-driven telescopic fire extinguishing device according to any one of claims 1-6, characterized in that: It also includes a PLC controller, smoke sensor and infrared thermal imaging camera, used to automatically detect fire sources and control extension, rotation and extinguishing agent spraying.

8. The scissor-driven telescopic fire extinguishing device according to claim 7, characterized in that: The extinguishing agent source includes water, dry powder and gas extinguishing agent pipelines, and each pipeline is equipped with a PLC-controlled solenoid valve.

9. The scissor-driven telescopic fire extinguishing device according to claim 1, characterized in that: Multiple devices are installed in the carport, with the spacing between the devices set to be greater than twice the sum of the lengths of the telescopic pipe assembly (4) when it is fully extended, to ensure that the fire extinguishing agent coverage has no overlapping dead corners.

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