Automatic fire extinguishing equipment for numerical control machine tool
The automatic fire extinguishing equipment using CNC machine tools utilizes temperature sensors and transmission components to achieve automatic dry powder fire extinguishing, solving the problem of untimely manual fire extinguishing, improving fire extinguishing efficiency and range, and ensuring safety.
Patent Information
- Application Number
- CN202520226919.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-13
AI Technical Summary
When existing CNC machine tools catch fire, manual firefighting is neither timely nor safe, and cannot effectively extinguish the fire.
Design an automatic fire extinguishing device for CNC machine tools. The device uses a temperature sensor to detect fires, and a controller drives a suction pump to spray dry powder. Combined with a transmission component and a stirring rod, the dry powder is stirred, resulting in a larger spray range from the nozzles and preventing clogging. The transmission mechanism enables the nozzles to swing, further increasing the fire extinguishing range.
It enables automatic, rapid, and effective extinguishing of fire sources when a fire occurs, improving fire extinguishing efficiency and range, and avoiding the dangers of manual fire extinguishing.
Smart Images

Figure CN223810773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fire extinguishing device, specifically an automatic fire extinguishing device for CNC machine tools. Background Technology
[0002] CNC machine tools, short for numerical control machine tools, are automated machine tools equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier. After processing, the CNC device sends various control signals to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings. Currently, automatic fire suppression for CNC machine tools generally relies on manual firefighting. When a CNC machine tool catches fire, manual firefighting is both inefficient in extinguishing the fire promptly and inherently dangerous. Therefore, an automatic fire suppression system for CNC machine tools needs to be designed to address this problem. Utility Model Content
[0003] The purpose of this invention is to provide an automatic fire extinguishing device for CNC machine tools to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An automatic fire extinguishing device for CNC machine tools includes a support plate, a mounting frame mounted on the support plate, a housing mounted on the mounting frame, a connecting pipe mounted on the bottom of the housing, a nozzle mounted on the end of the connecting pipe away from the housing, a mounting block provided on one side of the nozzle, and a suction pump mounted on the connecting pipe.
[0006] A temperature sensor is installed on the mounting bracket, and the temperature sensor is electrically connected to a controller.
[0007] A stirring rod is provided in the housing, a drive assembly is installed on the mounting frame, and the controller is electrically connected to the drive assembly and the suction pump.
[0008] A transmission assembly is mounted on the mounting frame. One end of the transmission assembly is connected to the drive assembly, and the other end is connected to the stirring rod.
[0009] The mounting bracket is equipped with a transmission mechanism, one end of which is connected to the drive assembly and the other end of which is connected to the mounting block.
[0010] As a further embodiment of this utility model: the drive assembly includes a drive component, which is mounted on a mounting bracket, electrically connected to the controller, and a drive shaft is mounted on the output end of the drive component.
[0011] As a further embodiment of this utility model: the transmission assembly includes a driven shaft, one end of which extends into the housing and is rotatably connected to the side wall of the housing. A stirring rod is mounted on the driven shaft, and a connecting unit is mounted on the driven shaft. The end of the connecting unit away from the driven shaft is connected to the drive shaft.
[0012] As a further embodiment of this utility model: the transmission mechanism includes a rotating shaft, which is rotatably connected to the mounting bracket, and a mounting block is mounted on the rotating shaft. An elastic component is mounted on the mounting block, and the end of the elastic component away from the mounting block is connected to the bottom of the housing.
[0013] A half gear is mounted on the drive shaft, and a driven gear meshes with one side of the half gear. The driven gear is mounted on the rotating shaft.
[0014] As a further embodiment of this invention, the driving component is a stepper motor.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When a fire occurs, the temperature rises rapidly. The temperature sensor will transmit a signal to the controller, which will then control the operation of the drive unit and the suction pump. The suction pump will transport the dry powder in the housing to the nozzle through the connecting pipe for fire extinguishing. The rotation of the drive shaft will drive the driven shaft to rotate through the connecting unit. The rotation of the driven shaft will drive the stirring rod connected to it to rotate. The rotation of the stirring rod will stir the dry powder in the housing, thereby breaking down any clumps of dry powder. This will make the spraying of dry powder by the nozzle smoother and avoid blockages that could affect the efficiency of the powder spraying for fire extinguishing. The rotation of the drive shaft will drive the rotation of the half gear connected to it. The rotation of the half gear will mesh with the driven gear, causing the rotating shaft to rotate. The rotation of the rotating shaft will drive the mounting block to rotate. The rotation of the mounting block will stretch the elastic component connected to it. The stretching of the elastic component will increase the elastic force. When the half gear disengages from the driven gear, the mounting block will reset under the action of the elastic force. This will cause the mounting block to drive the nozzle to swing continuously, allowing the nozzle to spray dry powder over a wider area for fire extinguishing of CNC machine tools. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of an automatic fire extinguishing device for CNC machine tools.
[0017] Figure 2 This is a schematic diagram of a half gear.
[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle.
[0019] In the diagram: 1. Support plate; 2. Mounting bracket; 3. Drive component; 4. Rotating shaft; 5. Housing; 6. Drive shaft; 7. Half gear; 8. Driven gear; 9. Mounting block; 10. Connecting pipe; 11. Nozzle; 12. Elastic component; 13. Stirring rod; 14. Driven shaft; 15. Connecting unit; 16. Temperature sensor; 17. Controller; 18. Suction pump. 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 Figures 1-3 As an embodiment of this utility model, an automatic fire extinguishing device for CNC machine tools includes a support plate 1, an mounting frame 2 is installed on the support plate 1, a housing 5 is installed on the mounting frame 2, a connecting pipe 10 is installed at the bottom of the housing 5, a nozzle 11 is installed at the end of the connecting pipe 10 away from the housing 5, a mounting block 9 is provided on one side of the nozzle 11, and a suction pump 18 is installed on the connecting pipe 10.
[0022] A temperature sensor 16 is installed on the mounting bracket 2, and the temperature sensor 16 is electrically connected to a controller 17.
[0023] The housing 5 is provided with a stirring rod 13, the mounting frame 2 is provided with a drive assembly, and the controller 17 is electrically connected to the drive assembly and the suction pump 18.
[0024] A transmission assembly is installed on the mounting frame 2. One end of the transmission assembly is connected to the drive assembly, and the other end is connected to the stirring rod 13.
[0025] The mounting bracket 2 is equipped with a transmission mechanism, one end of which is connected to the drive component and the other end is connected to the mounting block 9.
[0026] In this embodiment, when a fire occurs, the temperature rises rapidly. The temperature sensor 16 transmits a signal to the controller 17, which then controls the operation of the drive assembly and the suction pump 18. The suction pump 18 transports the dry powder in the housing 5 through the connecting pipe 10 to the nozzle 11 for fire extinguishing. At the same time, the drive assembly drives the transmission assembly and transmission mechanism to operate. The transmission assembly drives the connected stirring rod 13 to rotate. The rotating stirring rod 13 stirs the dry powder in the housing 5, thereby breaking down the clumps of dry powder. This makes the spraying of dry powder by the nozzle 11 smoother and avoids clogging that could affect the efficiency of the powder spraying for fire extinguishing. The transmission mechanism drives the nozzle 11 to swing continuously, allowing the nozzle 11 to spray dry powder over a wider area for extinguishing the fire on the CNC machine tool, thus improving the quality of fire extinguishing.
[0027] As an embodiment of the present invention, the drive assembly includes a drive component 3, which is mounted on the mounting bracket 2. The drive component 3 is electrically connected to the controller 17, and a drive shaft 6 is mounted on the output end of the drive component 3.
[0028] In this embodiment, when a fire occurs, the temperature will rise rapidly. The temperature sensor 16 will transmit a signal to the controller 17, which will then control the drive component 3 to operate. The operation of the drive component 3 will drive the drive shaft 6 to rotate, and the rotation of the drive shaft 6 will drive the transmission components and transmission mechanisms connected to it to operate.
[0029] As an embodiment of the present invention, the transmission assembly includes a driven shaft 14, one end of which extends into the housing 5 and is rotatably connected to the side wall of the housing 5. A stirring rod 13 is mounted on the driven shaft 14, and a connecting unit 15 is mounted on the driven shaft 14. The end of the connecting unit 15 away from the driven shaft 14 is connected to the drive shaft 6.
[0030] In this embodiment, the rotation of the drive shaft 6 drives the driven shaft 14 to rotate through the connecting unit 15. The rotation of the driven shaft 14 drives the stirring rod 13 connected to it to rotate. The rotation of the stirring rod 13 stirs the dry powder in the housing 5, thereby stirring and crushing the clumps of dry powder, making the spraying of dry powder by the nozzle 11 smoother and avoiding blockage that would affect the efficiency of powder fire extinguishing.
[0031] Furthermore, the connecting unit 15 can be a gear set or a pulley set, etc., which will not be described in detail here.
[0032] As an embodiment of the present utility model, the transmission mechanism includes a rotating shaft 4, which is rotatably connected to the mounting bracket 2, and a mounting block 9 is mounted on the rotating shaft 4. An elastic member 12 is mounted on the mounting block 9, and the end of the elastic member 12 away from the mounting block 9 is connected to the bottom of the housing 5.
[0033] A half gear 7 is mounted on the drive shaft 6, and a driven gear 8 meshes with one side of the half gear 7. The driven gear 8 is mounted on the rotating shaft 4.
[0034] In this embodiment, the rotation of the drive shaft 6 drives the connected half gear 7 to rotate. The rotation of the half gear 7 meshes with the driven gear 8, driving the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 drives the mounting block 9 to rotate. The rotation of the mounting block 9 stretches the connected elastic component 12. The stretching of the elastic component 12 stretches the elastic force. When the half gear 7 disengages from the driven gear 8, it may reset under the action of the elastic force. This causes the mounting block 9 to drive the nozzle 11 to swing continuously, so that the nozzle 11 sprays dry powder to extinguish the fire on the CNC machine tool over a larger area.
[0035] Furthermore, the elastic component 12 can be a spring or an elastic sheet, etc., which will not be described in detail here.
[0036] In one embodiment of this utility model, the driving component 3 is a stepper motor.
[0037] In this embodiment, the driving component 3 is a stepper motor. The drive shaft 6 connected to the stepper motor rotates, thereby driving the operation of the device.
[0038] The working principle of this utility model is as follows: When a fire occurs, the temperature rises rapidly. The temperature sensor 16 transmits a signal to the controller 17, which then controls the operation of the drive unit 3 and the suction pump 18. The suction pump 18 transports the dry powder in the housing 5 through the connecting pipe 10 to the nozzle 11 for fire extinguishing. The drive shaft 6 rotates, driving the driven shaft 14 to rotate through the connecting unit 15. The driven shaft 14 rotates, driving the connected stirring rod 13 to rotate. The stirring rod 13 rotates to stir the dry powder in the housing 5, thereby breaking down the clumps of dry powder so that the nozzle 11 can spray the dry powder. The process is smoother, avoiding blockages that could affect the efficiency of powder fire extinguishing. The drive shaft 6 rotates, causing the connected half gear 7 to rotate. The half gear 7 meshes with the driven gear 8, causing the rotating shaft 4 to rotate. The rotating shaft 4 rotates, causing the mounting block 9 to rotate. The rotation of the mounting block 9 stretches the connected elastic component 12. The stretching of the elastic component 12 stretches the elastic force. When the half gear 7 disengages from the driven gear 8, the elastic force may cause the mounting block 9 to reset. This causes the mounting block 9 to drive the nozzle 11 to swing continuously, allowing the nozzle 11 to spray dry powder over a wider area for fire extinguishing of the CNC machine tool.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An automatic fire extinguishing device for CNC machine tools, comprising a support plate, characterized in that, A mounting bracket is installed on the support plate, a housing is installed on the mounting bracket, a connecting pipe is installed at the bottom of the housing, a nozzle is installed at the end of the connecting pipe away from the housing, a mounting block is provided on one side of the nozzle, and a suction pump is installed on the connecting pipe. A temperature sensor is installed on the mounting bracket, and the temperature sensor is electrically connected to a controller. A stirring rod is provided in the housing, a drive assembly is installed on the mounting frame, and the controller is electrically connected to the drive assembly and the suction pump. A transmission assembly is mounted on the mounting frame. One end of the transmission assembly is connected to the drive assembly, and the other end is connected to the stirring rod. The mounting bracket is equipped with a transmission mechanism, one end of which is connected to the drive assembly and the other end of which is connected to the mounting block.
2. The automatic fire extinguishing device for CNC machine tools according to claim 1, characterized in that, The drive assembly includes a drive component, which is mounted on a mounting bracket and electrically connected to the controller. A drive shaft is mounted on the output end of the drive component.
3. The automatic fire extinguishing device for CNC machine tools according to claim 2, characterized in that, The transmission assembly includes a driven shaft, one end of which extends into the housing and is rotatably connected to the side wall of the housing. A stirring rod is mounted on the driven shaft, and a connecting unit is mounted on the driven shaft. The end of the connecting unit away from the driven shaft is connected to the drive shaft.
4. The automatic fire extinguishing device for CNC machine tools according to claim 2, characterized in that, The transmission mechanism includes a rotating shaft, which is rotatably connected to the mounting bracket, and a mounting block is mounted on the rotating shaft. An elastic component is mounted on the mounting block, and the end of the elastic component away from the mounting block is connected to the bottom of the housing. A half gear is mounted on the drive shaft, and a driven gear meshes with one side of the half gear. The driven gear is mounted on the rotating shaft.
5. The automatic fire extinguishing device for CNC machine tools according to claim 2, characterized in that, The driving component is a stepper motor.