Metal seal one-way pump

Abstract

The application discloses a metal seal one-way pump, the front end of the assembly outer cylinder is provided with a connection cover, the inside of the connection cover is provided with a stage counter thrust mechanism, the opposite side of the assembly outer cylinder and the connection cover is provided with a ring groove, the inner surface wall between the two ring grooves is movably embedded with a metal seal ring, the inner surface wall of the connection cover is fixedly inserted with a group of supporting rods, the mechanism adopts a mechanical transmission mode, utilizes the reverse resistance generated when liquid enters the equipment, pushes the structure to move, and uses a metal material sealing part to replace a traditional plastic rubber seal ring, utilizes the temperature-resistant characteristics of the metal itself, avoids damage of the sealing part caused by external environmental factors, through the reverse thrust provided by the transmission part for the metal sealing part, increases the contact strength between the sealing part and the shell, further improves the sealing performance in the equipment, and avoids the problem that liquid leaks when the equipment works.

Description

Technical Field

[0001] This invention relates to the field of sealed pumps, and more specifically, to a metal-sealed one-way pump. Background Technology

[0002] A pump is a machine that transports or pressurizes fluids. It transfers the mechanical energy of a prime mover or other external energy to a liquid, increasing the liquid's energy. Pumps are mainly used to transport liquids such as water, oil, acids and alkalis, emulsions, suspensions, and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids. Pumps are generally classified into three types according to their working principle: positive displacement pumps, dynamic pumps, and other types. Besides classification by working principle, they can also be classified and named in other ways. For example, according to the drive method, they can be divided into electric pumps and water turbine pumps; according to structure, they can be divided into single-stage pumps and multi-stage pumps; according to application, they can be divided into boiler feed pumps and metering pumps; according to the nature of the liquid being transported, they can be divided into water pumps, oil pumps, and slurry pumps. Based on whether they have a shaft, they can be divided into linear pumps and traditional pumps. Water pumps can only transport fluids and cannot transport solids.

[0003] In the prior art, such as the unidirectional pump disclosed in Chinese Patent Application No. CN 201554658 U, there is an AC single-phase permanent magnet water pump motor and a unidirectional drive circuit. This unidirectional drive circuit includes an AC power waveform sampling circuit, a rotor magnetic field sampling circuit, a microcontroller, and a switching circuit. The switching circuit is connected in series with the motor windings. When the AC power is turned on, the rotor magnetic field sampling circuit detects the magnetic field signal at the position where the permanent magnet rotor stops and inputs it to the microcontroller. The AC power waveform sampling circuit inputs the waveform signal to the microcontroller, which performs logic operations. The result of these operations outputs a control signal to the control terminal of the switching circuit, controlling the switching circuit to turn on or off. This causes the motor windings to be energized during the upper or lower half-wave of the power sine wave, thereby starting the AC single-phase permanent magnet water pump motor to rotate in the set direction. This invention, by setting a unidirectional drive circuit, ensures that the water pump rotates in the same direction each time it starts, thereby increasing flow rate, improving efficiency, and reducing energy consumption. It also avoids the problems of collisions or jamming that can occur when a mechanical structure controls the motor to rotate in one direction.

[0004] However, the aforementioned patents have the following shortcomings:

[0005] A unidirectional pump can suppress backflow of liquid at the outlet during liquid transportation, ensuring that the liquid entering the equipment can only flow in one direction. The equipment involved in the aforementioned patent, through optimized energy transmission circuitry, enables the pump body to rotate in one direction each time it starts, thereby increasing the liquid flow rate and improving efficiency. However, some shortcomings still exist. For example, the outer casing connection still uses a traditional connection method, mainly using engineering plastic materials for casing sealing. However, when plastic materials are heated at high temperatures, they expand, and their molecular structure naturally becomes loose and soft. They cannot fully recover when returning to room temperature, leading to leakage under high pressure. Conversely, when cooled, they contract, and their mechanical properties, plasticity, and toughness generally decrease. They also cannot fully recover when returning to room temperature. If this happens, when the equipment is used again, liquid continues to enter the casing, increasing the internal pressure and thus increasing the probability of liquid leakage from the equipment. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a metal-sealed one-way pump, which can increase the contact strength between the annular groove and the metal sealing ring and prevent liquid from seeping into the space between the annular groove and the metal sealing ring.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The present invention provides a metal-sealed one-way pump, including an assembly outer cylinder, wherein a connecting cover is provided at the front end of the assembly outer cylinder, and a staged reverse thrust mechanism is provided inside the connecting cover;

[0009] The outer cylinder and the connecting cover are provided with annular grooves on opposite sides, and a metal sealing ring is movably embedded between the inner walls of the two annular grooves.

[0010] A set of support rods is fixedly inserted into the inner wall of the connecting outer cover, a tray is fixedly sleeved between the outer walls of the set of support rods, and a ball valve is placed between the outer walls of the set of support rods.

[0011] The stage push mechanism includes a rectangular groove located at the center of the tray. A movable plate is movably installed inside the rectangular groove. A set of inclined blocks is fixedly installed on the rear surface of the movable plate. A cooperating column is fixedly inserted inside the ball valve. The outer wall of the cooperating column is fixedly inserted inside the movable plate. A set of external slots is opened on the rear surface of the tray. The number of external slots is equal to the number of inclined blocks. A power rod is movably inserted inside each of the external slots. One end of the outer wall of each of the power rods has a pre-set inclined surface. A reinforcing block is fixedly inserted at one end of the outer wall of each of the power rods. An arc-shaped push plate is welded to the outer wall of each of the reinforcing blocks.

[0012] In a preferred embodiment of the present invention, two connecting blocks are fixedly installed on the front surface of the tray, and an arc-shaped base is fixedly installed inside the two connecting blocks. A first active spring is fixedly installed between the inner walls of the two arc-shaped bases. The inner wall of the first active spring is connected to the outer wall of the ball valve. When high-speed flowing liquid is transported into the interior of the assembly outer cylinder through the external pipe and the liquid inlet pipe, it will generate a reverse thrust on the surface of the ball valve, causing the ball valve to move backward. During this process, the arc-shaped base and the first active spring in the ball valve are in a compressed state. When the equipment finishes its work, the reaction force generated by the first active spring will assist the ball valve in resetting.

[0013] In a preferred embodiment of the present invention, a connecting collar is fixedly sleeved on the outer wall of each of the power rods. A second active spring is fixedly installed between the outer wall of each connecting collar and the inner wall of the outer slot. The inner wall of each second active spring is movably sleeved on the outer wall of the power rod. When the power rod is continuously pushed by the inclined block, the connecting collar gradually moves away from the inside of the outer slot. As the distance between them increases, the second active spring between the connecting collar and the outer slot is in a stretched state. When the equipment finishes its work, the reverse tension generated by the second active spring causes the power rod to quickly return to its original position.

[0014] In a preferred embodiment of the present invention, U-shaped tracks are fixedly installed on both sides of the inner wall of the rectangular groove, and limiting slides are fixedly installed on both sides of the outer wall of the movable plate. The outer walls of the two limiting slides are respectively placed inside the U-shaped tracks. By setting the limiting slides, when the movable plate moves back and forth, the movable connection between the U-shaped tracks and the limiting slides can effectively limit the shaking generated when the movable plate moves, thereby improving the stability of the movable plate during movement.

[0015] In a preferred embodiment of the present invention, a plurality of metal legs are fixedly installed on the rear surface of the assembly outer cylinder by screws, and a positioning collar is fixedly installed between the outer walls of the plurality of metal legs. A servo motor is fixedly inserted into the inner wall of the positioning collar. When the servo motor is started, it can drive the impeller assembly inside the assembly outer cylinder to rotate, providing power support for the operation of the equipment.

[0016] In a preferred embodiment of the present invention, a roller is provided inside the assembly outer cylinder, and multiple fan blades are fixedly installed on the front surface of the roller. A transmission rod is fixedly connected to the output end of the servo motor, and one end of the outer wall of the transmission rod passes through the interior of the assembly outer cylinder and the sealing assembly, and is fixedly inserted inside the roller. The transmission rod can stably transmit the power from the servo motor and synchronously act on the impeller assembly.

[0017] In a preferred embodiment of the present invention, a set of mounting buckles is welded to the outer wall of both the assembly outer cylinder and the connecting outer cover, and the number of the two sets of mounting buckles is equal. Each of the two sets of mounting buckles has a pre-set mounting hole inside. Since the number of the two sets of mounting buckles is equal, and after the assembly outer cylinder and the connecting outer cover are in full contact, every two mounting buckles are tightly connected. At this time, the designated fixed connection is inserted into the mounting hole in sequence to achieve external fixation of the assembly outer cylinder and the connecting outer cover.

[0018] In a preferred embodiment of the present invention, a liquid inlet pipe is provided on the front surface of the connecting outer cover. The liquid outlet end of the liquid inlet pipe penetrates the outer wall of the connecting outer cover and is connected to the interior of the assembly outer cylinder. A liquid drain pipe is provided at the top of the assembly outer cylinder. The liquid inlet end of the liquid drain pipe penetrates the outer wall of the assembly outer cylinder and is connected to the interior of the assembly outer cylinder. The liquid inlet pipe and the liquid drain pipe are provided for conveying liquid. During the process, the liquid in the extraction equipment flows in from the liquid inlet pipe, is guided by the impeller assembly inside the machine body, and is discharged from the interior of the liquid drain pipe.

[0019] In a preferred embodiment of the present invention, two metal supports are welded to the outer wall of the assembly outer cylinder. Each of the two metal supports has a support plate fixedly installed on its outer wall. The metal supports increase the distance between the equipment shell and the ground, preventing ground liquid from directly contacting the surfaces of the assembly outer cylinder and the connecting outer cover, reducing the probability of shell corrosion, and increasing the service life of the equipment.

[0020] The beneficial effects of this invention are as follows:

[0021] This invention provides a metal-sealed one-way pump. By setting a staged reverse thrust mechanism, before the housing is assembled, sealant is applied to the connection between the outer cylinder and the connecting outer cover. When both are closed, the metal sealing ring is accurately placed inside the annular groove, ensuring full contact between the outer wall of the metal sealing ring and the inner wall of the annular groove. When the equipment draws liquid, its inlet pipe is connected to an external delivery pipe. The drive component inside the equipment is activated. During this time, the impeller rotation continuously increases the internal air pressure of the housing, causing the ball valve to retract. This generates a strong suction force at the inlet pipe, continuously drawing the liquid from one end of the external pipe. After the liquid enters the equipment, the ball valve remains in a retracted state. Because one end of the power rod has an inclined surface, when the ball valve moves backward, it drives the inclined stop block to move synchronously. Upon contact with the power rod, it generates an upward thrust and expands the extension length of each arc-shaped push plate. When each arc-shaped pusher plate moves to its maximum range, it exerts an outward thrust on the surface of the metal sealing ring, preventing the metal sealing ring from being disturbed by hydraulic pressure. This causes partial deformation under pressure, leading to the ring detaching from the surface of the annular groove. This increases the contact strength between the annular groove and the metal sealing ring, preventing liquid from seeping into the space between them. The mechanism uses a mechanical transmission method, utilizing the reverse resistance generated by the liquid entering the equipment to drive the structure. It replaces the traditional plastic and rubber sealing rings with metal sealing components, taking advantage of the metal's inherent temperature resistance to avoid damage to the sealing components due to external environmental factors. The reverse thrust provided to the metal sealing components by the transmission components increases the contact strength between the sealing components and the housing, further improving the sealing performance within the equipment. This effectively solves the shortcomings of the aforementioned patent and prevents liquid leakage during equipment operation. Attached Figure Description

[0022] Figure 1 This is a perspective view of the main structure of a metal-sealed one-way pump according to the present invention;

[0023] Figure 2 This is a side view perspective of the structure of a metal-sealed one-way pump according to the present invention;

[0024] Figure 3 This is a perspective view of the internal structure of the outer cylinder assembled in a metal-sealed one-way pump according to the present invention;

[0025] Figure 4 This is an enlarged perspective view of the connecting outer cover structure in a metal-sealed one-way pump according to the present invention;

[0026] Figure 5 This is an enlarged perspective view of the stage reverse thrust mechanism structure in a metal-sealed unidirectional pump according to the present invention;

[0027] Figure 6 This is an enlarged perspective view of a portion of the structure of a metal-sealed one-way pump according to the present invention;

[0028] Figure 7 This invention provides a metal-sealed unidirectional pump. Figure 5 Enlarged 3D view of the structure at point A in the middle;

[0029] Figure 8 This invention provides a metal-sealed unidirectional pump. Figure 6 Enlarged 3D view of the structure at point B.

[0030] In the picture:

[0031] 1-Assembly outer cylinder; 2-Connecting outer cover; 3-Inlet pipe; 4-Drain pipe; 5-Annular groove; 6-Metal sealing ring; 7-Support rod; 8-Tray; 9-Ball valve; 10-Connecting block; 11-Arc-shaped base; 12-First active spring; 13-Stage reverse thrust mechanism; 1301-Rectangular groove; 1302-Moving plate; 1303-Cooperating column; 1304-Sloping stop block; 1305-Outer slot; 1306-Power rod; 1307-Reinforcing block; 1308-Arc-shaped push plate; 1309-Connecting collar; 1310-Second active spring; 1311-U-shaped track; 1312-Limiting slide plate; 14-Metal support leg; 15-Positioning collar; 16-Servo motor; 17-Roller; 18-Fan blade; 19-Mounting buckle; 20-Metal bracket; 21-Support plate. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1-8 As shown, the embodiment provides a metal-sealed one-way pump, including an assembly outer cylinder 1, a connecting outer cover 2 at the front end of the assembly outer cylinder 1, a staged reverse thrust mechanism 13 inside the connecting outer cover 2, annular grooves 5 on opposite sides of the assembly outer cylinder 1 and the connecting outer cover 2, a metal sealing ring 6 movably embedded between the inner walls of the two annular grooves 5, a set of support rods 7 fixedly inserted into the inner wall of the connecting outer cover 2, a tray 8 fixedly sleeved between the outer walls of the set of support rods 7, and a ball valve 9 placed between the outer walls of the set of support rods 7.

[0034] according to Figures 1-6 and Figure 7As shown, the stage push mechanism 13 includes a rectangular groove 1301, which is located at the center of the tray 8. A movable plate 1202 is movably arranged inside the rectangular groove 1301. A set of inclined blocks 1304 are fixedly installed on the rear surface of the movable plate 1202. A cooperating column 1303 is fixedly inserted inside the ball valve 9. The outer wall of the cooperating column 1303 is fixedly inserted inside the movable plate 1202. A set of external slots 1305 are opened on the rear surface of the tray 8. The number of external slots 1305 is equal to the number of inclined blocks 1304. A power rod 1306 is movably inserted inside each of the external slots 1305. One end of the outer wall of each of the power rods 1306 is pre-set with an inclined surface. A reinforcing block 1307 is fixedly inserted at one end of the outer wall of each of the power rods 1306. An arc-shaped push plate 1308 is welded to the outer wall of each of the reinforcing blocks 1307.

[0035] according to Figure 6 As shown, two connecting blocks 10 are fixedly installed on the front surface of the tray 8. An arc-shaped base 11 is fixedly installed inside the two connecting blocks 10. A first active spring 12 is fixedly installed between the inner walls of the two arc-shaped bases 11. The inner wall of the first active spring 12 is connected to the outer wall of the ball valve 9. By setting the first active spring 12, when the high-speed flowing liquid is transported into the interior of the assembly outer cylinder 1 through the external pipe and the liquid inlet pipe 3, it will generate a reverse thrust on the surface of the ball valve 9, causing the ball valve 9 to move backward. During the process, the arc-shaped base 11 and the first active spring 12 in the ball valve 9 are in a compressed state. When the equipment finishes working, the reaction force generated by the first active spring 12 will assist the ball valve 9 to reset.

[0036] according to Figure 5 As shown, a set of power rods 1306 are all fixedly fitted with connecting collars 1309 on their outer walls. A second active spring 1310 is fixedly installed between the outer wall of each connecting collar 1309 and the inner wall of the outer slot 1305. The inner wall of each second active spring 1310 is movably fitted onto the outer wall of the power rod 1306. By setting the second active spring 1310, when the power rod 1306 is continuously pushed by the inclined block 1304, the connecting collar 1309 is gradually moved away from the inside of the outer slot 1305. When the distance between the two increases, the second active spring 1310 between the connecting collar 1309 and the outer slot 1305 is in a stretched state. When the equipment finishes working, the reverse tension generated by the second active spring 1310 causes the power rod 1306 to quickly return to its original position.

[0037] according to Figure 6 and Figure 8As shown, U-shaped tracks 1311 are fixedly installed on both sides of the inner wall of the rectangular groove 1301, and limiting slide plates 1312 are fixedly installed on both sides of the outer wall of the movable plate 1202. The outer walls of the two limiting slide plates 1312 are respectively placed inside the U-shaped tracks 1311. By setting the limiting slide plates 1312, when the movable plate 1202 moves back and forth, the movable connection between the U-shaped tracks 1311 and the limiting slide plates 1312 can effectively limit the shaking generated when the movable plate 1202 moves, thereby improving the stability of the movable plate 1202 during movement.

[0038] according to Figures 1-3 As shown, multiple metal legs 14 are fixedly installed on the rear surface of the outer cylinder 1 by screws. A positioning collar 15 is fixedly installed between the outer walls of the multiple metal legs 14. A servo motor 16 is fixedly inserted into the inner wall of the positioning collar 15. By setting the servo motor 16, when the servo motor 16 is started, it can drive the impeller assembly inside the outer cylinder 1 to rotate, providing power support for the operation of the equipment.

[0039] according to Figures 1-3 As shown, a roller 17 is provided inside the assembly outer cylinder 1. Multiple fan blades 18 are fixedly installed on the front surface of the roller 17. A transmission rod is fixedly connected to the output end of the servo motor 16. One end of the outer wall of the transmission rod passes through the interior of the assembly outer cylinder 1 and the sealing assembly and is fixedly inserted into the interior of the roller 17. By setting the transmission rod, the power transmitted by the servo motor 16 can be stably and synchronously applied to the impeller assembly.

[0040] according to Figures 1-4 As shown, a set of mounting buckles 19 are welded to the outer walls of both the outer cylinder 1 and the connecting cover 2, and the number of the two sets of mounting buckles 19 is equal. Each of the two sets of mounting buckles 19 has a pre-set mounting hole inside. By setting the mounting buckles 19, since the number of the two sets of mounting buckles 19 is equal, and after the outer cylinder 1 and the connecting cover 2 are in full contact, every two mounting buckles 19 will be tightly connected. At this time, the specified fixed connection is inserted into the mounting hole in sequence to realize the external fixation of the outer cylinder 1 and the connecting cover 2.

[0041] according to Figures 1-4 As shown, a liquid inlet pipe 3 is provided on the front surface of the connecting outer cover 2. The liquid outlet end of the liquid inlet pipe 3 penetrates the outer wall of the connecting outer cover 2 and is connected to the inside of the assembly outer cylinder 1. A liquid drain pipe 4 is provided on the top of the assembly outer cylinder 1. The liquid inlet end of the liquid drain pipe 4 penetrates the outer wall of the assembly outer cylinder 1 and is connected to the inside of the assembly outer cylinder 1. By setting up the liquid inlet pipe 3 and the liquid drain pipe 4, liquid is transported. During the process, the liquid in the extraction equipment flows in from the liquid inlet pipe 3, is guided by the impeller assembly inside the machine body, and is discharged from the inside of the liquid drain pipe 4.

[0042] according to Figures 1-3As shown, two metal brackets 20 are welded to the outer wall of the assembly outer cylinder 1. Each outer wall of the two metal brackets 20 is fixedly equipped with a support plate 21. By setting the metal brackets 20, the distance between the equipment shell and the ground is increased, preventing ground liquid from directly contacting the surfaces of the assembly outer cylinder 1 and the connecting outer cover 2, reducing the probability of shell corrosion, and increasing the service life of the equipment.

[0043] The overall mechanism achieves the following effect: First, the equipment is moved to the designated work area, and the bottom of the support plate 21 is fully in contact with the ground. The connecting outer cover 2 and its connected components are moved to the front end of the assembly outer cylinder 1, and sealant is evenly applied at the connection between the two. When the assembly outer cylinder 1 and the connecting outer cover 2 are closed, the metal sealing ring 6 is first inserted laterally into the interior of one of the annular grooves 5, and then the connecting outer cover 2 is moved parallel to the outside until the metal sealing ring 6 is completely placed between the two annular grooves 5. Since the number of mounting buckles 19 on the assembly outer cylinder 1 and the connecting outer cover 2 is equal, after the assembly outer cylinder 1 and the connecting outer cover 2 are fully connected, the designated fixing parts are used to connect each pair of mounting buckles 19 in sequence.

[0044] When the equipment is working, the external pipe is connected to the liquid inlet pipe 3. At the same time, the servo motor 16 in the positioning collar 15 is started and acts on the roller 17, which drives the multiple fan blades 18 connected to it to rotate. The resulting negative pressure effect causes the ball valve 9 to retract, forcing the first active spring 12 between it and the arc-shaped base 11 to be in a compressed state. At this time, the liquid connected to one end of the external pipe is continuously drawn into the interior of the outer cylinder 1 of the assembly. When the liquid enters from the liquid inlet pipe 3, the counter-thrust generated by the high-speed flow of the liquid increases the tendency of the ball valve 9 to retract.

[0045] Driven by the coordinating column 1303, it acts on the movable plate 1202, causing multiple inclined blocks 1304 connected to it to move backward. When the surface of the inclined block 1304 contacts the inclined surface at one end of the power rod 1306, it will generate a forward thrust on the power rod 1306, and drive the arc-shaped push plate 1308 on the reinforcing block 1307 to move continuously toward the outer wall of the metal sealing ring 6. When the power rod 1306 moves backward to the maximum position, the extension length of the outer slot 1305 also reaches the maximum range, and each arc-shaped push plate 1308 fully covers the inner wall of the metal sealing ring 6, so that the outer wall of the metal sealing ring 6 always tightly covers the inner surface wall of the ring groove 5 when the equipment is dispensing liquid. During the process, the second active spring 1310 between the connecting collar 1309 and the outer slot 1305 is in a stretched state.

[0046] Once the equipment has finished its work, the servo motor 16 and fan blade 18 stop rotating, and the equipment loses its ability to extract liquid. At this point, the reaction force generated by compressing the first active spring 12 pushes the ball valve 9 to reset and seals the inlet pipe 3. Meanwhile, the reaction force generated by stretching the second active spring 1310 assists the arc-shaped push plate 1308 in resetting.

[0047] Other techniques in this embodiment are based on existing technologies.

[0048] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A metal-sealed one-way pump, characterized in that: It includes an assembly outer cylinder (1), the front end of which is provided with a connecting outer cover (2), and the interior of the connecting outer cover (2) is provided with a stage reverse thrust mechanism (13); The outer cylinder (1) and the connecting cover (2) are provided with annular grooves (5) on opposite sides, and a metal sealing ring (6) is movably embedded between the inner walls of the two annular grooves (5). A set of support rods (7) is fixedly inserted into the inner surface wall of the connecting outer cover (2), a tray (8) is fixedly sleeved between the outer surface walls of the set of support rods (7), and a ball valve (9) is placed between the outer surface walls of the set of support rods (7). The stage counter-thrust mechanism (13) includes a rectangular groove (1301) located at the center of the tray (8). A movable plate (1202) is movably disposed inside the rectangular groove (1301). A set of inclined blocks (1304) is fixedly installed on the rear surface of the movable plate (1202). A cooperating column (1303) is fixedly inserted inside the ball valve (9). The outer wall of the cooperating column (1303) is fixedly inserted inside the movable plate (1202). The tray ( 8) The rear surface is provided with a set of external slots (1305). The number of external slots (1305) is equal to the number of inclined blocks (1304). A power rod (1306) is movably inserted inside each of the external slots (1305). One end of the outer wall of each of the power rods (1306) is pre-set with an inclined surface. One end of the outer wall of each of the power rods (1306) is fixedly inserted with a reinforcing block (1307). The outer wall of each of the reinforcing blocks (1307) is welded with an arc-shaped push plate (1308). A connecting collar (1309) is fixedly sleeved on the outer wall of a set of power rods (1306). A second active spring (1310) is fixedly installed between the outer wall of each of the connecting collars (1309) and the inner wall of the outer slot (1305). The inner wall of each second active spring (1310) is movably sleeved on the outer wall of the power rod (1306).

2. The metal-sealed one-way pump according to claim 1, characterized in that: Two connecting blocks (10) are fixedly installed on the front surface of the tray (8). An arc-shaped base (11) is fixedly installed inside the two connecting blocks (10). A first active spring (12) is fixedly installed between the inner walls of the two arc-shaped bases (11). The inner wall of the first active spring (12) is connected to the outer wall of the ball valve (9).

3. The metal-sealed one-way pump according to claim 1, characterized in that: The inner walls of the rectangular groove (1301) are fixedly installed with U-shaped tracks (1311) on both sides, and the outer walls of the movable plate (1202) are fixedly installed with limiting slide plates (1312) on both sides. The outer walls of the two limiting slide plates (1312) are respectively placed inside the U-shaped tracks (1311).

4. The metal-sealed one-way pump according to claim 1, characterized in that: The rear surface of the assembly outer cylinder (1) is fixedly mounted with multiple metal legs (14) by screws. A positioning collar (15) is fixedly mounted between the outer walls of the multiple metal legs (14). A servo motor (16) is fixedly inserted into the inner wall of the positioning collar (15).

5. The metal-sealed one-way pump according to claim 4, characterized in that: The assembly outer cylinder (1) is provided with a roller (17) inside. Multiple fan blades (18) are fixedly installed on the front surface of the roller (17). The output end of the servo motor (16) is fixedly connected to a transmission rod. One end of the outer wall of the transmission rod passes through the interior of the assembly outer cylinder (1) and the sealing assembly and is fixedly inserted into the interior of the roller (17).

6. The metal-sealed one-way pump according to claim 1, characterized in that: The outer walls of the assembly outer cylinder (1) and the connecting outer cover (2) are each welded with a set of mounting buckles (19), and the number of the two sets of mounting buckles (19) is equal. Each of the two sets of mounting buckles (19) has a pre-set mounting hole inside.

7. The metal-sealed one-way pump according to claim 1, characterized in that: The front surface of the connecting outer cover (2) is provided with a liquid inlet pipe (3). The liquid outlet end of the liquid inlet pipe (3) penetrates the outer wall of the connecting outer cover (2) and is connected to the interior of the assembly outer cylinder (1). The top of the assembly outer cylinder (1) is provided with a liquid drain pipe (4). The liquid inlet end of the liquid drain pipe (4) penetrates the outer wall of the assembly outer cylinder (1) and is connected to the interior of the assembly outer cylinder (1).

8. The metal-sealed one-way pump according to claim 1, characterized in that: The outer wall of the assembly outer cylinder (1) is welded with two metal brackets (20), and each of the two metal brackets (20) has a support plate (21) fixedly installed on its outer wall.

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