Fire-fighting dry powder filling device
By introducing a collection component and a servo motor to control the sealing in the fire-fighting dry powder filling device, the problems of dry powder leakage and inaccurate filling volume are solved, achieving efficient collection and accurate filling of dry powder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
Existing fire-fighting dry powder filling devices still experience dry powder leakage when the discharge port is closed, affecting the accuracy of the filling volume.
The system employs a collection assembly, including a rotatable cap, a collection trough, and a rubber ring. The cap connects to the discharge pipe to collect dry powder, and the gaps in the rubber ring and the Y-shaped rubber rod strike the inner wall of the discharge pipe to reduce dry powder residue. The opening and closing of the cap are controlled by a servo motor and a stepper motor.
It effectively reduces the leakage of dry powder, ensures the accuracy of filling volume, and realizes centralized collection and recycling of dry powder through the design of the collection tank.
Smart Images

Figure CN224075799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry powder filling, and in particular to a fire-fighting dry powder filling device. Background Technology
[0002] Extinguishing agents are substances that can effectively disrupt combustion conditions and stop combustion. Dry powder extinguishing agents and foam extinguishing agents are the most commonly used. Fire extinguishing agent filling devices are mainly used to fill the interior of fire extinguishers. Existing automatic fire extinguishing agent filling devices have a variety of functions to meet the various needs of fire extinguishing agents and achieve diversification.
[0003] A search revealed the Chinese patent "Automatic Fire Extinguishing Agent Filling Device" (authorization announcement number CN211845107U), which includes a body, a dry powder tank, a base, and a feeding port. The dry powder tank is located at the front end of the body, and a feeding port is located at the bottom end of the dry powder tank. The front end of the bottom of the body is fixedly installed at the rear end of the base. A cover plate is fixedly installed at the top of the feeding port. The top center of the cover plate is movably connected to a sliding plate via a pivot. The cover plate and sliding plate close the feeding port to prevent the dry powder from falling out when not in operation, thus avoiding the need to cut the fire extinguisher bottle. When changing the equipment, residual dry powder inside may fall and be exposed to the outside, causing pollution to the workshop environment, affecting the health of operators, and reducing the ease of use of the equipment. However, the above method has the following defects in actual use: Although the outlet is closed by a cover plate and a sliding plate to reduce the leakage of dry powder, there will still be dry powder falling on the cover plate and sliding plate. This will cause the dry powder on the cover plate and sliding plate to mix with the subsequent dry powder during the filling process, affecting the accuracy of the filling volume. In addition, dry powder is also prone to leakage when the sliding plate is opened and closed.
[0004] Therefore, a fire-fighting dry powder filling device is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a fire-fighting dry powder filling device to solve the above problems, thereby improving the issues of easy leakage of dry powder and poor filling accuracy.
[0006] This utility model achieves the above-mentioned objective through the following technical solution: a fire-fighting dry powder filling device, including a filling machine and a discharge pipe installed on its outer side; it also includes a collection component, which is disposed on the outer side of the discharge pipe and is used to collect the dry powder in the discharge pipe after a single filling, thereby reducing the leakage of dry powder and the occurrence of affecting the subsequent filling volume; wherein, the collection component includes a rotatable cap, a collection groove and a rubber ring, the collection groove is opened into the inside of the cap and faces the discharge port of the discharge pipe, the rubber ring is installed into the inside of the collection groove, and a set of slits distributed along its axis are provided inside the rubber ring.
[0007] Preferably, the collection assembly further includes a conical block installed inside the collection groove, the outer side of which contacts one side of the rubber ring.
[0008] Preferably, a Y-shaped rubber rod is installed on the top of the conical block, and both ends of the Y-shaped rubber rod away from the conical block are in contact with the inner wall of the discharge pipe.
[0009] Preferably, a hinge seat is provided on the outer side of the discharge pipe, a servo motor is installed on the outer side of the hinge seat, the servo motor is connected to the hinge shaft inside the hinge seat, and a support plate is hinged on the hinge seat.
[0010] Preferably, a stepper motor is installed on one side of the support plate, and the output shaft of the stepper motor is fixedly connected to one side of the cover via a coupling. The cover is rotatably connected to the outside of the support plate.
[0011] Preferably, a set of balls is embedded on one side of the cap, and an annular groove for accommodating the balls is opened at one end of the discharge pipe.
[0012] Preferably, the cover is equipped with a discharge pipe that communicates with the collection tank, and a valve is provided on the outside of the discharge pipe.
[0013] The beneficial effects of this utility model are:
[0014] By setting a cover and connecting the cover to the discharge pipe, the dry powder is collected onto the conical block. Then, as the cover rotates, the dry powder is thrown into the collection trough to complete the collection operation. In addition, a rubber ring is used to seal and store the collected dry powder to reduce leakage.
[0015] By setting up a Y-shaped rubber rod, the inner wall of the discharge pipe is continuously struck during the dry powder collection process, which helps the dry powder remaining on the inner wall to fall off quickly, reducing the occurrence of dry powder residue and ensuring the accuracy of subsequent filling. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0018] Figure 3 This is an exploded view of the support plate and the cover of this utility model;
[0019] Figure 4 This is a cross-sectional schematic diagram of the cap and conical block of this utility model;
[0020] Figure 5 This is a partial schematic diagram of the discharge pipe and annular groove of this utility model.
[0021] In the diagram: 100, filling machine; 200, discharge pipe; 210, servo motor; 220, support plate; 221, stepper motor; 300, collection assembly; 310, cap; 311, discharge pipe; 320, collection trough; 330, rubber ring; 340, conical block; 341, Y-shaped rubber rod. Detailed Implementation
[0022] 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.
[0023] In practical implementation: such as Figure 1-5 As shown, a fire-fighting dry powder filling device includes a filling machine 100 and a discharge pipe 200 installed on its outside; it also includes a collection component 300, which is disposed on the outside of the discharge pipe 200 and is used to collect the dry powder in the discharge pipe 200 after a single filling, thereby reducing the leakage of dry powder and the occurrence of the phenomenon affecting the subsequent filling volume; wherein, the collection component 300 includes a rotatable cover 310, a collection groove 320 and a rubber ring 330, the collection groove 320 is opened into the inside of the cover 310 and faces the discharge port of the discharge pipe 200, the rubber ring 330 is installed into the inside of the collection groove 320, and a set of slits distributed along its axis are provided inside the rubber ring 330.
[0024] like Figure 3 and Figure 4 As shown, the collection assembly 300 also includes a conical block 340 installed inside the collection groove 320, with the outer side of the conical block 340 contacting one side of the rubber ring 330.
[0025] After the filling machine 100 completes a single filling operation, the user can quickly connect the cap 310 to the discharge port of the discharge pipe 200. The dry powder will then fall onto the conical block 340 and be inside the rubber ring 330. Then, the cap 310 can be driven to rotate, causing the rubber ring 330 to expand outward under the influence of centrifugal force, thereby forming a channel for the dry powder to flow between the conical block 340 and the rubber ring 330, so that the dry powder can be collected in the collection tank 320 to complete the collection operation.
[0026] It should be noted that the filling machine 100 is equipped with a dry powder tank for containing dry powder, and the discharge pipe 200 is equipped with a solenoid valve. The filling machine 100 is a mature existing technology, and its internal structure and application are readily known to those skilled in the art, so they will not be described in detail here.
[0027] like Figure 3 and Figure 4 As shown, a Y-shaped rubber rod 341 is installed on the top of the conical block 340, and both ends of the Y-shaped rubber rod 341 away from the conical block 340 are in contact with the inner wall of the discharge pipe 200.
[0028] During the rotation of the cap 310, the conical block 340 will drive the Y-shaped rubber rod 341 to move, so that the corresponding end of the Y-shaped rubber rod 341 can strike the inner wall of the discharge pipe 200, thereby helping the dry powder remaining on the inner wall to fall off quickly and reducing the phenomenon of excessive dry powder residue affecting the subsequent filling volume.
[0029] like Figure 2 and Figure 3 As shown, a hinge seat is provided on the outside of the discharge pipe 200, and a servo motor 210 is installed on the outside of the hinge seat. The servo motor 210 is connected to the hinge shaft inside the hinge seat, and a support plate 220 is hinged on the hinge seat.
[0030] Activating the servo motor 210 can drive the support plate 220 and the cover 310 to change their positions, thereby completing the closing and opening of the discharge port of the discharge pipe 200.
[0031] like Figure 3 As shown, a stepper motor 221 is installed on one side of the support plate 220. The output shaft of the stepper motor 221 is fixedly connected to one side of the cover 310 through a coupling. The cover 310 is rotatably connected to the outside of the support plate 220.
[0032] Start the stepper motor 221 to drive the cover 310 to complete the rotational movement.
[0033] like Figure 3 and Figure 5 As shown, a set of balls is embedded on one side of the cover 310, and an annular groove for accommodating the balls is opened at one end of the discharge pipe 200.
[0034] By using a ball bearing configuration, after the cap 310 is connected to the discharge pipe 200, the ball bearing will be inside the annular groove, which improves the smoothness of the cap 310 during rotation and reduces excessive friction.
[0035] like Figure 3 and Figure 4 As shown, a discharge pipe 311 connected to the collection tank 320 is installed on the cover 310, and a valve is provided on the outside of the discharge pipe 311.
[0036] Users can periodically open the valve to allow the material in the collection tank 320 to be discharged along the discharge pipe 311 for recycling, thus saving energy.
[0037] Working Principle: The fire extinguisher canister can be placed below the discharge pipe 200, and then the solenoid valve is opened to perform the filling operation. After the filling machine 100 completes a single filling operation, the user can start the servo motor 210, causing the support plate 220 to drive the cap 310 to quickly connect with the discharge port of the discharge pipe 200. Then, the dry powder will fall onto the conical block 340 and be inside the rubber ring 330. Next, the stepper motor 221 can be driven to rotate the cap 310, causing the bottom of the rubber ring 330 to expand outward under the influence of centrifugal force. The internal gaps will open slightly, ensuring the outward expansion of the deformation of the rubber ring 330. This creates a channel for the dry powder to flow between the outer side of the conical block 340 and the bottom of the rubber ring 330, allowing the dry powder to collect in the collection tank. In step 320, the Y-shaped rubber rod 341 is simultaneously driven to strike the inner wall of the discharge pipe 200, assisting the rapid falling of residual dry powder from the inner wall and reducing the phenomenon of excessive dry powder residue affecting subsequent filling volume. This continues until all the dry powder is thrown into the collection tank 320, completing the collection operation. Subsequently, the stepper motor 221 stops operating, and the rubber ring 330 deforms and resets, sealing and storing the dry powder collected in the collection tank 320 to reduce leakage. Users can periodically discharge the material in the collection tank 320 along the discharge pipe 311 for recycling, which is more energy-efficient. The entire device can collect the residual dry powder in the discharge pipe 200 after a single filling operation, reducing leakage and ensuring the accuracy of subsequent filling volume.
[0038] 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. A fire-fighting dry powder filling device, characterized in that, The application relates to a filling machine (100) and a discharge pipe (200) mounted to the outer side of the filling machine (100). The application further relates to a collecting assembly (300) arranged on the outer side of the discharge pipe (200) and used for collecting dry powder in the discharge pipe (200) after single filling, reducing dry powder leakage and affecting subsequent filling amount. The collecting assembly (300) comprises a rotatable cover (310), a collecting groove (320) and a rubber ring (330), the collecting groove (320) is arranged in the cover (310) and faces a discharge port of the discharge pipe (200), the rubber ring (330) is arranged in the collecting groove (320), and the rubber ring (330) is provided with a plurality of slits distributed along the axis. The collecting assembly (300) further comprises a conical block (340) arranged in the collecting groove (320), and the outer side of the conical block (340) is in contact with one side of the rubber ring (330).
2. A fire dry powder filling device according to claim 1, characterized in that: The top of the conical block (340) is provided with a Y-shaped rubber rod (341), and the two ends of the Y-shaped rubber rod (341) are in contact with the inner wall of the discharge pipe (200).
3. A fire dry powder filling device according to claim 2, characterized in that: The outer side of the discharge pipe (200) is provided with a hinged seat, the outer side of the hinged seat is provided with a servo motor (210), the servo motor (210) is in butt joint with a hinged shaft in the hinged seat, and a supporting plate (220) is hinged to the hinged seat.
4. The fire dry powder filling device according to claim 1, characterized in that: One side of the supporting plate (220) is provided with a stepping motor (221), the output shaft of the stepping motor (221) is fixedly connected with one side of the cover (310) through a shaft coupling, and the cover (310) is rotatably connected to the outer side of the supporting plate (220).
5. A fire dry powder filling device according to claim 4, characterized in that: One side of the cover (310) is embedded with a plurality of ball bearings, and one end of the discharge pipe (200) is provided with an annular groove for accommodating the ball bearings.
6. A fire dry powder filling device according to claim 1, characterized in that: The cover (310) is provided with a discharge pipe (311) in communication with the collecting groove (320), and the outer side of the discharge pipe (311) is provided with a valve.
7. A fire dry powder filling device according to claim 1, characterized in that:
Citation Information
Patent Citations
Automatic filling device for fire extinguishing agent
CN211845107U