Self-sealing leakproof copper composite pump body

Abstract

The invention relates to the technical field of gear pumps, in particular to a self-sealing leakproof copper composite pump body which comprises a supporting seat, a plurality of sets of gear pumps are linearly distributed on the supporting seat, the input ends of the gear pumps are connected with rotating gears, and a driving mechanism in meshing transmission with the rotating gears is arranged on the supporting seat. A water inlet and a water outlet of the gear pump are connected with flange pipes, and one side of each flange pipe is provided with a vertical extrusion plate; most traditional gear pumps are connected in a bolt fastening mode, a plurality of bolts need to be screwed off one by one during disassembly, time and labor are consumed, and threads are prone to being damaged, the gear pump is rapidly assembled and disassembled through the extrusion sealing design of an extrusion plate and a flange pipe and the combination of an automatic reset mechanism of a piston barrel and a reset spring, the bolts do not need to be repeatedly disassembled, and the assembly efficiency is improved. The maintenance downtime is obviously shortened, and the influence on the industrial production continuity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gear pumps, and in particular to a self-sealing and leak-proof copper composite pump body. Background Art

[0002] In the field of industrial fluid transportation, gear pumps have become core equipment in the chemical, petroleum, and food processing industries due to their stable transportation performance and high volumetric efficiency. However, long-term continuous operation inevitably causes wear and aging of gears, bearings, seals and other components within the gear pump, and even sudden mechanical failures. Once a problem occurs, the equipment must be stopped immediately and the gear pump must be disassembled and repaired to avoid safety accidents caused by leakage or affecting product quality. Currently, the pump body and connecting components of traditional gear pumps are mostly fastened with bolts. During disassembly and maintenance, operators need to use professional tools such as wrenches and sockets to unscrew the multiple bolts distributed around the pump body one by one. Due to the large number of bolts and the possibility of rust, seizure, etc., the disassembly process is often time-consuming and labor-intensive. In addition, repeated disassembly of bolts can damage the threads, reduce the connection strength, and affect the sealing of the pump body. After reinstallation, if the sealing effect is not good, media leakage is likely to occur. Therefore, a self-sealing and leak-proof copper composite pump body is proposed. It can achieve rapid disassembly and maintenance of gear pumps, reduce downtime, and ensure sealing performance, meeting the needs of efficient and stable operation of industrial production. Summary of the Invention

[0003] In response to the problems in the prior art, the present invention provides a self-sealing and leak-proof copper composite pump body, which can realize the rapid disassembly and maintenance of the gear pump, reduce downtime and ensure sealing performance, meeting the needs of efficient and stable operation of industrial production.

[0004] The technical solution adopted by the present invention to solve its technical problems is a self-sealing and leak-proof copper composite pump body, including a support base, on which several groups of gear pumps are linearly distributed, the input end of the gear pump is connected to the rotating gear, and the support base is provided with a driving mechanism that meshes with the rotating gear for transmission. The water inlet and water outlet of the gear pump are both connected to a flange pipe, and a vertical extrusion plate is provided on one side of the flange pipe. A horizontally arranged support plate is provided on the side of the extrusion plate close to the flange pipe, a positioning groove corresponding to the extrusion plate is provided on the support base, and a connecting hole corresponding to the flange pipe is provided on the extrusion plate, and a connecting component connected to the connecting hole is provided on the side of the extrusion plate.

[0005] Specifically, one end of the flange pipe is provided with a groove, and a sealing gasket is provided in the groove. The sealing gasket is in extrusion contact with one side of the extrusion plate. A fixing ring is provided in the connecting hole. A sealing expansion ring is provided on the side of the fixing ring away from the connecting component. The sealing expansion ring corresponds to the joint between the connecting hole and the flange pipe.

[0006] Specifically, a piston cylinder is vertically arranged in the positioning groove, and a horizontally arranged piston plate is provided inside the piston cylinder. The upper surface of the piston plate is fixedly connected to the piston rod, and the side of the piston plate away from the piston rod is fixedly connected to the bottom of the piston cylinder with a return spring, and the upper end of the piston rod is hinged to the lower end of the extrusion plate through a hinge seat; One side of the extrusion plate is provided with a first air inlet joint connected to the sealing expansion ring, and the bottom side of the fixed end of the piston cylinder is provided with a first air outlet joint, which is connected to the first air inlet joint through a pipeline.

[0007] Specifically, the upper end and the lower end of the piston cylinder are connected to the second air outlet connector and the second air inlet connector respectively. The second air outlet connector corresponding to each group of gear pumps is connected to the second air inlet connectors of other gear pumps through pipelines.

[0008] Specifically, the connecting component includes a sleeve, one end of the sleeve corresponds to the connecting hole, a connecting pipe is provided at the end of the sleeve away from the connecting hole, a flange is provided at one end of the connecting pipe, a sealing tube is rotatably connected between the connecting pipe and the sleeve, a first filter plate is provided on the inner side of the sealing tube, a plurality of groups of circumferentially distributed first filter holes are provided on the first filter plate, a second filter plate corresponding to the first filter plate is provided on the inner side of the connecting pipe, and second filter holes corresponding to the first filter holes are provided on the second filter plate.

[0009] Specifically, a circumferentially distributed tooth structure is provided on the outer side of the sealing tube, and a plurality of vertically arranged racks are provided on the support seat, and the racks are meshed with the tooth structure for transmission.

[0010] Specifically, the driving mechanism includes a driving motor arranged on one side of the support base, an installation groove is provided on the upper surface of the support base, the output shaft of the driving motor passes through the installation groove and is rotatably connected to the installation groove, the support base is provided with several groups of transmission gears that mesh with the rotating gears for transmission, and the output shaft of the driving motor is fixedly connected with several groups of driving gears that mesh with the transmission gears for transmission, and the transmission gears are fixedly connected to the upper surface of the support base through a connecting frame.

[0011] Specifically, the upper surface of the extrusion plate is fixedly connected with a handle.

[0012] Specifically, the bottom of the support seat is provided with a plurality of groups of vertically arranged support legs.

[0013] Beneficial effects of the present invention: The present invention describes a self-sealing and leak-proof copper composite pump body. Traditional gear pumps are mostly connected by bolt fastening. When disassembling, multiple bolts need to be unscrewed one by one, which is time-consuming and labor-intensive and easily damages the threads. The present invention realizes the rapid installation and disassembly of the gear pump through the extrusion sealing design of the extrusion plate and the flange pipe, combined with the automatic reset mechanism of the piston cylinder and the reset spring, without the need for repeated disassembly of the bolts, significantly shortening the maintenance downtime and reducing the impact on the continuity of industrial production.

[0014] The self-sealing and leak-proof copper composite pump body described in the present invention is in squeeze contact with one side of the extrusion plate through the sealing gasket in the groove at the end of the flange pipe, and relies on the extrusion force brought by the weight of the gear pump to increase, fill the gap and form a preliminary seal. During the downward movement of the extrusion plate, the compressed gas in the piston cylinder is passed into the sealing expansion ring, causing it to expand and fit tightly to the joint between the connecting hole and the flange pipe, thereby specifically strengthening the sealing effect and forming a double sealing guarantee. It not only enhances the initial sealing effect, but also automatically triggers the expansion of the sealing expansion ring during the downward movement of the extrusion plate, thereby ensuring the sealing performance and effectively preventing the fluid from leaking from the connection part.

[0015] The self-sealing and leak-proof copper composite pump body described in the present invention is such that when a group of gear pumps fails and needs maintenance, the gas in its corresponding piston cylinder is transported to the piston cylinders of other gear pumps through pipelines, causing the sealing expansion rings of the other gear pumps to further expand, thereby enhancing the sealing performance to adapt to high-load operation; at the same time, the rotation speed of the remaining gear pumps is increased, the fluid displacement is increased, and the flow gap caused by the failed pump body is compensated, ensuring that the overall system delivery volume meets the demand without shutting down the entire system.

[0016] The present invention describes a self-sealing and leak-proof copper composite pump body, in which the tooth structure on the outside of the sealing tube engages with the rack on the support seat. When the gear pump is installed and moved downward, the sealing tube rotates to align the filter holes of the first filter plate and the second filter plate, and the passage is opened; when it is disassembled and moved upward, the sealing tube rotates in the opposite direction to stagger the filter holes and close the passage; without additional operation, the fluid passage between the pump body to be repaired and the external pipeline can be cut off, thereby preventing leakage at the source without affecting the operation of other pump bodies, thereby ensuring the safety of the maintenance process and the continuity of system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 is an axonometric drawing of the present invention; Figure 2 is a side view of the present invention; Figure 3 for Figure 1 A magnified view of area A; Figure 4 for Figure 1 A magnified view of area B; Figure 5 It is a schematic cross-sectional structural diagram of the support base of the present invention; Figure 6 for Figure 5 Magnified view of area C; Figure 7 It is a schematic cross-sectional structural diagram of the communication component of the present invention; Figure 8 for Figure 7 Magnified view of area D; Figure 9 Schematic diagram of the cross-sectional structure of the piston cylinder of the present invention; In the figure: 1. support base; 2. gear pump; 3. rotating gear; 4. flange pipe; 5. extrusion plate; 6. support plate; 7. positioning groove; 8. connecting hole; 9. slot; 10. sealing gasket; 11. fixing ring; 12. sealing expansion ring; 13. piston cylinder; 14. piston plate; 15. piston rod; 16. return spring; 17. hinge seat; 18. first air inlet joint; 19. first air outlet joint; 20. second air outlet joint; 21. second air inlet joint; 22. sleeve; 23. connecting pipe; 24. flange; 25. sealing pipe; 26. first filter plate; 27. first filter hole; 28. second filter plate; 29. ​​second filter hole; 30. tooth structure; 31. rack; 32. drive motor; 33. mounting groove; 34. transmission gear; 35. drive gear; 36. handle; 37. support leg DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In order to realize the rapid disassembly and maintenance of the gear pump, reduce downtime and ensure sealing performance, and meet the requirements of efficient and stable operation of industrial production, as an embodiment of the present invention, Figure 1-3 As shown, the self-sealing and leak-proof copper composite pump body described in the present invention includes a support base 1, and several groups of gear pumps 2 are linearly distributed on the support base 1. The input end of the gear pump 2 is connected to the rotating gear 3. The support base 1 is provided with a driving mechanism that meshes with the rotating gear 3 for transmission. The water inlet and water outlet of the gear pump 2 are both connected to a flange pipe 4, and a vertical extrusion plate 5 is provided on one side of the flange pipe 4. A horizontally arranged support plate 6 is provided on the side of the extrusion plate 5 close to the flange pipe 4. A positioning groove 7 corresponding to the extrusion plate 5 is provided on the support base 1, and a connecting hole 8 corresponding to the flange pipe 4 is provided on the extrusion plate 5. A connecting component connected to the connecting hole 8 is provided on the side of the extrusion plate 5.

[0021] Exemplarily, the gear pump 2 of the present invention includes a first gear pump and a second gear pump. When the first gear pump and the second gear pump need to be installed, the first gear pump and the second gear pump are respectively placed on the support plates 6 corresponding to the two sides of the flange pipe 4. The support plates 6 play a stable supporting role for the gear pump 2 to prevent the gear pump 2 from shifting during the installation process. Subsequently, the two sets of extrusion plates 5 are swung to a vertical state. At this time, the ends of the flange pipes 4 at the water inlet and outlet positions of the first gear pump and the second gear pump will form an extrusion contact with the side surfaces of the extrusion plates 5. Due to the weight of the gear pump 2 itself, the extrusion plates 5 will be driven to gradually move downward. After moving downward, the extrusion plates 5 are inserted into the corresponding positioning grooves 7 on the support seat 1. The positioning grooves 7 can limit the position of the extrusion plates 5, ensure the stability of the extrusion between the flange pipe 4 and the extrusion plates 5, thereby ensuring the sealing of the connection between the two, and realizing the rapid installation of the gear pump 2. When the first gear pump or the second gear pump needs to be repaired or replaced, the first gear pump or the second gear pump to be disassembled is lifted upward by a hoisting device. As the gear pump 2 is lifted, the pressure of the extrusion plate 5 gradually decreases, and the extrusion plate 5 moves upward and disengages from the positioning groove 7. Thereafter, the extrusion plate 5 is swung outward so that the extrusion plate 5 no longer maintains extrusion contact with the end of the flange pipe 4. The connection between the flange pipe 4 and the extrusion plate 5 is released. At this time, the first gear pump or the second gear pump can be completely lifted and removed. The whole process does not require repeated removal of bolts, thereby realizing rapid disassembly of the gear pump 2. After the gear pump 2 is installed, the external pipeline is connected to the communication hole 8 on the extrusion plate 5 through the communication component on the side of the extrusion plate 5, so that the fluid can flow between the gear pump 2 and the external pipeline through the communication component, the communication hole 8 and the flange pipe 4. The driving mechanism on the support base 1 is started, and the driving mechanism will form a meshing transmission with the rotating gear 3 at the input end of the gear pump 2. Driven by the driving mechanism, the rotating gear 3 will drive the internal structure of the gear pump 2 to operate, so that the first gear pump and the second gear pump start working to realize the fluid transportation; It should be pointed out that the pump body of the gear pump 2 described in the present invention is made of a copper composite material.

[0022] In order to ensure the sealing between the flange pipe 4 and the extruded plate 5, for example, Figure 1 、 Figure 3 、 Figure 7 、 Figure 8 As shown, the present invention also includes that one end of the flange tube 4 is provided with a groove 9, a sealing gasket 10 is provided in the groove 9, the sealing gasket 10 is in extrusion contact with one side of the extrusion plate 5, a fixing ring 11 is provided in the connecting hole 8, and a sealing expansion ring 12 is provided on the side of the fixing ring 11 away from the connecting component, and the sealing expansion ring 12 corresponds to the joint between the connecting hole 8 and the flange tube 4.

[0023] When in use, place the gear pump 2 on the support plate 6 on the side of the extrusion plate 5 close to the flange pipe 4. The support plate 6 provides stable support for the gear pump 2, ensuring that the flange pipe 4 connected to the water inlet and outlet of the gear pump 2 corresponds to the position of the connecting hole 8 on the extrusion plate 5. Swing the extrusion plate 5 to a vertical state. At this time, the sealing gasket 10 in the slot 9 at one end of the flange pipe 4 will form a preliminary extrusion contact with one side of the extrusion plate 5, laying the foundation for subsequent sealing. Relying on the weight of the gear pump 2 itself, the extrusion plate 5 is driven to gradually move downward until the extrusion plate 5 is inserted into the corresponding positioning groove 7 on the support seat 1. The positioning groove 7 will limit the position of the extrusion plate 5 to prevent it from deflecting during operation, thereby ensuring the extrusion state between the flange pipe 4 and the extrusion plate 5. Stability: As the extrusion plate 5 moves downward, the extrusion force between the flange tube 4 and the extrusion plate 5 increases, and the sealing gasket 10 is further tightly extruded and contacted with the side of the extrusion plate 5, filling the gap between the flange tube 4 and the extrusion plate 5 through physical extrusion, thereby enhancing the initial sealing effect. At the same time, in the process of the extrusion plate 5 moving downward, the sealing expansion ring 12 on the side of the fixed ring 11 in the communicating hole 8 will be driven to expand. Since the sealing expansion ring 12 corresponds to the joint of the communicating hole 8 and the flange tube 4, the expanded sealing expansion ring 12 will fit tightly at the joint position, performing targeted sealing on the part, forming a secondary sealing guarantee, significantly improving the sealing between the flange tube 4 and the extrusion plate 5 and the communicating hole 8, and effectively preventing fluid leakage from the connection part; No bolting is required during installation. The installation can be completed by simply placing the gear pump 2 on the support plate 6 and using its own weight to move the extrusion plate 5 downward and insert it into the positioning groove 7, which greatly improves efficiency. It avoids the thread damage problem of traditional bolt connections and ensures long-term sealing reliability. It simplifies the operating process, reduces labor costs and technical barriers, and simultaneously triggers the extrusion of the sealing gasket 10 and the expansion of the sealing expansion ring 12 during installation, ensuring that the installation meets the standards, can adapt to emergency conditions, and reduce downtime losses.

[0024] In order to facilitate the expansion of the sealing expansion ring 12, for example, as shown in 3, Figure 5 、 Figure 6 、 Figure 9 As shown, the present invention further includes a piston cylinder 13 vertically arranged in the positioning groove 7, a piston plate 14 horizontally arranged inside the piston cylinder 13, a piston rod 15 fixedly connected to the upper surface of the piston plate 14, a side of the piston plate 14 away from the piston rod 15 and a return spring 16 fixedly connected to the bottom of the piston cylinder 13, and the upper end of the piston rod 15 is hinged to the lower end of the extrusion plate 5 through a hinge seat 17; A first air inlet connector 18 connected to the sealing expansion ring 12 is provided on one side of the extrusion plate 5, and a first air outlet connector 19 is provided on the bottom side of the fixed end of the piston cylinder 13. The first air outlet connector 19 is connected to the first air inlet connector 18 through a pipeline.

[0025] When in use, place the gear pump 2 to be installed on the horizontal support plate 6 on the side of the extrusion plate 5 close to the flange pipe 4, ensure that the flange pipe 4 connected to the water inlet and outlet of the gear pump 2 is aligned with the communication hole 8 on the extrusion plate 5, and rely on the hinge seat 17 to facilitate the extrusion plate 5 to swing to a vertical state in the direction close to the flange pipe 4. The sealing gasket 10 in the groove 9 at the end of the flange pipe 4 will form an initial extrusion contact with the side of the extrusion plate 5, and the elastic deformation of the sealing gasket 10 will fill the small gap between the flange pipe 4 and the extrusion plate 5 to form a first layer of sealing; Then, the gear pump 2 relies on its own gravity to generate downward pressure on the support plate 6, driving the extrusion plate 5 to gradually move downward. The lower end of the extrusion plate 5 is connected to the upper end of the piston rod 15 through the hinge seat 17. Therefore, when the extrusion plate 5 moves downward, it will push the piston rod 15 to move downward. The downward movement of the piston rod 15 drives the piston plate 14 in the piston cylinder 13 to move downward synchronously, compressing the return spring 16 under the piston plate 14. The first air outlet joint 19 on one side of the bottom of the piston cylinder 13 is connected to the first air inlet joint 18 on the extrusion plate 5 through a pipeline. The compressed gas in the piston cylinder 13 enters the first air inlet joint 18 through the first air outlet joint 19 and the pipeline, and finally passes into the sealing expansion ring 12. The sealing expansion ring 12 expands due to inflation and fits tightly between the connecting hole 8 and the flange pipe 4, forming a second layer of seal. As the extrusion plate 5 continues to move downward until it is inserted into the corresponding positioning groove 7 on the support seat 1, the positioning groove 7 limits the lateral displacement of the extrusion plate 5, ensuring that the extrusion state of the flange tube 4 and the extrusion plate 5 is stable, avoiding seal failure due to vibration; when the gear pump 2 needs to be disassembled, the gear pump 2 is lifted upward by the hoisting equipment, and the pressure on the extrusion plate 5 gradually decreases. At this time, the return spring 16 in the piston cylinder 13 releases its elastic potential energy, pushing the piston plate 14 upward, driving the piston rod 15 and the extrusion plate 5 to move upward, so that the extrusion plate 5 is disengaged from the positioning groove 7, and then the extrusion plate 5 is swung outward to separate the extrusion plate 5 from the sealing gasket 10 at the end of the flange tube 4, releasing the sealing state, and the gear pump 2 can be completely removed; There is no need to tighten the bolts during installation, and the seal can be completed by simply placing, swinging, and moving down; when disassembling, it relies on the reset spring 16 to automatically reset, getting rid of the rust and jamming problems of traditional bolt connections, and greatly shortening maintenance downtime.

[0026] For example, Figure 5 、 Figure 6 、 Figure 9 As shown, the present invention also includes that the upper and lower ends of the piston cylinder 13 are respectively connected to the second air outlet connector 20 and the second air inlet connector 21, and the second air outlet connector 20 corresponding to each group of gear pumps 2 is connected to the second air inlet connectors 21 of other gear pumps 2 through pipelines.

[0027] During use, when the first gear pump fails and needs to be repaired, the first gear pump is first lifted upward by a hoisting device to separate it from the support plate 6. At this time, the pressure of the first gear pump on the extrusion plate 5 disappears, and the return spring 16 in the piston cylinder 13 corresponding to the first gear pump releases its elastic potential energy, pushing the piston plate 14 upward, driving the piston rod 15 and the extrusion plate 5 to move upward, and the extrusion plate 5 is separated from the positioning groove 7, completing the preliminary disassembly preparation of the first gear pump; After the first gear pump is removed, in order to make up for the delivery volume gap, the delivery volume of the second gear pump needs to be increased, thereby filling the flow gap caused by the failure of the first gear pump and meeting the total amount of fluid delivery required by the system; As the first gear pump is completely lifted and removed, its corresponding piston plate 14 moves up to the top of the piston cylinder 13 under the continuous action of the return spring 16, and the space above the piston plate 14 is compressed. The gas in the piston cylinder 13 of the first gear pump is discharged through the second gas outlet connector 20 at the upper end of the piston cylinder 13. Since the second gas outlet connector 20 of each group of gear pumps 2 is connected to the second gas inlet connector 21 of the other gear pumps 2 through a pipeline, the gas discharged by the first gear pump is directionally transported to the second gas inlet connector 21 at the lower end of the piston cylinder 13 corresponding to the second gear pump through the pipeline; After the air pressure in the piston cylinder 13 of the second gear pump increases, the high-pressure gas is continuously delivered to the sealing expansion ring 12 through the first air outlet connector 19 at the bottom of the piston cylinder 13, the pipeline and the first air inlet connector 18 on the extrusion plate 5. The sealing expansion ring 12 of the second gear pump, which has already expanded, further expands under the action of the additional air pressure, fits more tightly with the joint between the connecting hole 8 and the flange pipe 4, and the sealing pressure is significantly improved. Since the sealing effect of the sealing expansion ring 12 has been enhanced by gas pressurization, even if the fluid pressure in the second gear pump increases, it can effectively prevent the fluid from leaking from the joint between the flange pipe 4 and the connecting hole 8, ensuring its stable operation under high load.

[0028] For example, Figure 3 、 Figure 7 、 Figure 8 As shown, the present invention also includes that the connecting component includes a sleeve 22, one end of the sleeve 22 corresponds to the connecting hole 8, and the end of the sleeve 22 away from the connecting hole 8 is provided with a connecting pipe 23, one end of the connecting pipe 23 is provided with a flange 24, and a sealing tube 25 is rotatably connected between the connecting pipe 23 and the sleeve 22, and a first filter plate 26 is provided on the inner side of the sealing tube 25, and a plurality of groups of circumferentially distributed first filter holes 27 are provided on the first filter plate 26, and a second filter plate 28 corresponding to the first filter plate 26 is provided on the inner side of the connecting pipe 23, and a second filter hole 29 corresponding to the first filter hole 27 is provided on the second filter plate 28.

[0029] In order to facilitate the rapid cutting off of the fluid passage between the pump body to be disassembled and the external pipeline, when in use, the gear pump 2 is placed on the support plate 6 of the extrusion plate 5, and the extrusion plate 5 is swung to a vertical state so that the extrusion plate 5 is inserted into the positioning groove 7 and squeezed and sealed with the flange pipe 4. One end of the sleeve 22 of the connecting component is aligned with the communication hole 8 on the extrusion plate 5 to ensure that the sleeve 22 and the communication hole 8 are sealed and connected. The end of the connecting pipe 23 away from the sleeve 22 is connected to the delivery pipeline through the flange 24, completing the preliminary construction of the fluid delivery passage; Rotate the sealing tube 25 so that the first filter hole 27 on the first filter plate 26 is completely aligned with the second filter hole 29 on the second filter plate 28. At this time, the fluid can pass through the connecting tube 23, the second filter hole 29, the first filter hole 27, the sealing tube 25, the sleeve 22 and the connecting hole 8 in sequence, thereby achieving smooth communication between the gear pump 2 and the external pipeline. The second filter hole 29 and the first filter hole 27 can filter impurities in the fluid, protecting the gears, bearings and other components inside the gear pump 2 from wear and tear, thereby extending the service life of the equipment; When the first gear pump fails and needs to be disassembled, the first gear pump is hoisted and lifted. While lifting, the sealing tube 25 is rotated. As the sealing tube 25 rotates, the first filter plate 26 and the second filter plate 28 rotate relative to each other, and the first filter holes 27 and the second filter holes 29 are gradually staggered. When the first filter holes 27 and the second filter holes 29 are completely staggered, the two groups of filter holes block each other, and the fluid cannot pass through the second filter plate 28. The fluid passage between the pump body to be disassembled and the external pipeline can be quickly cut off, thereby preventing leakage at the source and greatly reducing safety risks.

[0030] For example, Figure 3 、 Figure 7 、 Figure 8 As shown, the present invention also includes that the outer side of the sealing tube 25 is provided with a circumferentially distributed tooth structure 30, and the support base 1 is provided with a plurality of groups of vertically arranged racks 31, which mesh with the tooth structure 30 for transmission.

[0031] When in use, when the gear pump 2 is placed on the support plate 6 and relies on its own weight to drive the extrusion plate 5 to move downward, the extrusion plate 5 approaches the positioning groove 7 of the support seat 1 in the vertical direction. At this time, the downward movement of the extrusion plate 5 drives the connecting component to move downward synchronously as a whole, and the sealing tube 25 moves downward vertically synchronously with the extrusion plate 5. The tooth structure 30 on the outside of the sealing tube 25 engages with the vertical rack 31 on the support seat 1 for transmission. Since the rack 31 is fixed on the support seat 1, the sealing tube 25 rotates by the reaction force of the teeth of the rack 31 while moving vertically downward. The first filter plate 26 inside the sealing tube 25 rotates synchronously with the sealing tube 25 and gradually aligns with the second filter plate 28 inside the connecting tube 23. When the gear pump 2 is fully installed in place and the extrusion plate 5 is inserted into the positioning groove 7, the first filter hole 27 on the first filter plate 26 completely overlaps with the second filter hole 29 on the second filter plate 28, the filter hole is opened, and the fluid passage is unobstructed. When the gear pump 2 is hoisted and moved upward for maintenance, the extrusion plate 5 is synchronously moved upward under the action of the return spring 16 of the piston cylinder 13 and disengaged from the positioning groove 7. At this time, the extrusion plate 5 drives the connecting component to move vertically upward as a whole, and the sealing tube 25 moves upward accordingly. The tooth structure 30 on the outer side of the sealing tube 25 is meshed with the rack 31 again. During the upward movement, it rotates in the opposite direction due to the reaction force of the rack 31. The first filter plate 26 rotates in the opposite direction with the sealing tube 25 and gradually staggers with the second filter plate 28. When the gear pump 2 is completely separated from the support plate 6, the first filter hole 27 and the second filter hole 29 are completely staggered. The two groups of filter holes block each other, and the fluid cannot pass through the filter plate, and the passage is cut off. The opening and closing of the first filter hole 27 and the second filter hole 29 are completely driven by the downward installation and upward removal actions of the gear pump 2 itself, and mechanical linkage is achieved by the engagement of the tooth structure 30 and the rack 31. No manual adjustment or additional power source is required, which simplifies the operation process and reduces the risk of human error. After the extrusion plate 5 swings outward to a certain position, one side of the extrusion plate 5 contacts one side of the rack 31. The rack 31 forms a rigid barrier to the extrusion plate 5, which can effectively limit the swing amplitude of the extrusion plate 5, thereby avoiding the problem that the extrusion plate 5 is difficult to accurately reset to the sealing position corresponding to the flange pipe 4 when reinstalling the gear pump 2 due to excessive swing amplitude, which may cause poor contact between the sealing gasket 10 and the extrusion plate 5, and the sealing expansion ring 12 cannot be aligned with the joint.

[0032] For example, Figure 1 、 Figure 2 、 Figure 4 As shown, the present invention also includes that the driving mechanism includes a driving motor 32 arranged on one side of the support base 1, the upper surface of the support base 1 is provided with a mounting groove 33, the output shaft of the driving motor 32 passes through the mounting groove 33 and is rotatably connected to the mounting groove 33, the support base 1 is provided with a plurality of groups of transmission gears 34 meshing with the rotating gear 3 for transmission, and the output shaft of the driving motor 32 is fixedly connected with a plurality of groups of driving gears 35 meshing with the transmission gear 34 for transmission, and the transmission gear 34 is fixedly connected to the upper surface of the support base 1 through a connecting frame.

[0033] When in use, the drive motor 32 is started, and the output shaft drives the drive gear 35 to rotate. The drive gear 35 drives the transmission gear 34 to rotate synchronously through meshing action. The transmission gear 34 then drives the rotating gear 3 of the gear pump 2 to rotate. The rotating gear 3 drives the internal gear structure of the gear pump 2 to operate, realizing the suction and discharge of the fluid and completing the conveying operation. When a single group of gear pumps 2 fails and is disassembled, the output power of the drive motor 32 can be adjusted to increase the speed of the remaining gear pumps 2 to make up for the delivery capacity gap; when a group of gear pumps 2 is disassembled for maintenance, its corresponding transmission gear 34 is disengaged from the rotating gear 3, but the drive motor 32 can still drive the remaining transmission gears 34 to operate through other drive gears 35, thereby reducing production interruption losses.

[0034] For example, Figure 1 、 Figure 3 As shown, the present invention further includes that a handle 36 is fixedly connected to the upper surface of the extrusion plate 5 .

[0035] When in use, the handle 36 is used to drive the squeezing plate 5 to swing, thereby improving the convenience of operation.

[0036] For example, Figure 1 As shown, the present invention also includes that the bottom of the support base 1 is provided with a plurality of groups of vertically arranged support legs 37.

[0037] When in use, the support legs 37 can ensure the overall stability of the support base 1 and the gear pump 2.

[0038] When the present invention is in use, the gear pump 2 of the present invention includes a first gear pump and a second gear pump. When the first gear pump and the second gear pump need to be installed, the first gear pump and the second gear pump are respectively placed on the corresponding support plates 6 on both sides of the flange pipe 4. The support plates 6 play a stable supporting role for the gear pump 2 to prevent the gear pump 2 from shifting during the installation process. Subsequently, the two sets of extrusion plates 5 are swung to a vertical state. At this time, the ends of the flange pipe 4 at the water inlet and water outlet positions of the first gear pump and the second gear pump will form an extrusion contact with the side of the extrusion plate 5, and the sealing gasket 10 in the groove 9 at one end of the flange pipe 4 will form a preliminary extrusion contact with one side of the extrusion plate 5, laying the foundation for subsequent sealing; Relying on the weight of the gear pump 2 itself, the extrusion plate 5 is driven to gradually move downward until the extrusion plate 5 is inserted into the corresponding positioning groove 7 on the support seat 1. The positioning groove 7 will limit the position of the extrusion plate 5 to prevent it from deflecting during operation, thereby ensuring the stability of the extrusion state between the flange pipe 4 and the extrusion plate 5. As the extrusion plate 5 moves downward, the extrusion force between the flange pipe 4 and the extrusion plate 5 increases, and the sealing gasket 10 further closely contacts the side of the extrusion plate 5. The gap between the flange pipe 4 and the extrusion plate 5 is filled by physical extrusion, thereby enhancing the initial sealing effect. At the same time, during the downward movement of the extrusion plate 5, the lower end of the extrusion plate 5 is connected to the upper end of the piston rod 15 through the hinge seat 17. Therefore, when the extrusion plate 5 moves downward, it will push the piston rod 15 to move downward. The downward movement of the piston rod 15 drives the piston plate 14 in the piston cylinder 13 to move downward synchronously, compressing the return spring 16 under the piston plate 14. The first air outlet joint 19 on one side of the bottom of the piston cylinder 13 is connected to the first air inlet joint 18 on the extrusion plate 5 through a pipeline. The compressed gas in the piston cylinder 13 enters the first air inlet joint 18 through the first air outlet joint 19 and the pipeline, and finally passes into the sealing expansion ring 12, causing the sealing expansion ring 12 to expand. Since the sealing expansion ring 12 corresponds to the joint of the communicating hole 8 and the flange pipe 4, the expanded sealing expansion ring 12 will fit tightly at the joint position, performing targeted sealing on this part, forming a secondary sealing guarantee, which significantly improves the sealing between the flange pipe 4, the extrusion plate 5 and the communicating hole 8, and effectively prevents fluid leakage from the connection part; When the gear pump 2 is placed on the support plate 6 and relies on its own weight to drive the extrusion plate 5 to move downward, the extrusion plate 5 approaches the positioning groove 7 of the support seat 1 in the vertical direction. At this time, the downward movement of the extrusion plate 5 drives the connecting component to move downward synchronously as a whole, and the sealing tube 25 moves downward vertically synchronously with the extrusion plate 5. The tooth structure 30 on the outside of the sealing tube 25 engages with the vertical rack 31 on the support seat 1 for transmission. Since the rack 31 is fixed on the support seat 1, the sealing tube 25 rotates by the reaction force of the teeth of the rack 31 while moving vertically downward. The first filter plate 26 inside the sealing tube 25 rotates synchronously with the sealing tube 25 and gradually aligns with the second filter plate 28 inside the connecting tube 23. When the gear pump 2 is fully installed in place and the extrusion plate 5 is inserted into the positioning groove 7, the first filter hole 27 on the first filter plate 26 completely overlaps with the second filter hole 29 on the second filter plate 28, the filter hole is opened, and the fluid passage is unobstructed. Then the drive motor 32 is started, and the output shaft drives the drive gear 35 to rotate. The drive gear 35 drives the transmission gear 34 to rotate synchronously through meshing action. The transmission gear 34 then drives the rotating gear 3 of the gear pump 2 to rotate. The rotating gear 3 drives the internal gear structure of the gear pump 2 to operate, realizing the suction and discharge of the fluid, completing the conveying operation; When the first gear pump fails and needs to be repaired, the first gear pump is first lifted upward by a hoisting device to separate it from the support plate 6. At this time, the pressure of the first gear pump on the extrusion plate 5 disappears, and the return spring 16 in the piston cylinder 13 corresponding to the first gear pump releases its elastic potential energy, pushing the piston plate 14 upward, driving the piston rod 15 and the extrusion plate 5 to move upward, and the extrusion plate 5 is separated from the positioning groove 7, completing the preliminary disassembly preparation of the first gear pump; After the first gear pump is removed, the delivery capacity of the second gear pump can be increased by adjusting the output power of the drive motor 32 to make up for the flow gap caused by the failure of the first gear pump, thereby meeting the total amount of fluid delivery required by the system; at the same time, when a group of gear pumps 2 is disassembled for maintenance, its corresponding transmission gear 34 is disengaged from the rotating gear 3, but the drive motor 32 can still drive the remaining transmission gears 34 to operate through other drive gears 35, thereby reducing production interruption losses; As the first gear pump is completely lifted and removed, its corresponding piston plate 14 moves up to the top of the piston cylinder 13 under the continuous action of the return spring 16, and the space above the piston plate 14 is compressed. The gas in the piston cylinder 13 of the first gear pump is discharged through the second gas outlet connector 20 at the upper end of the piston cylinder 13. Since the second gas outlet connector 20 of each group of gear pumps 2 is connected to the second gas inlet connector 21 of the other gear pumps 2 through a pipeline, the gas discharged by the first gear pump is directionally transported to the second gas inlet connector 21 at the lower end of the piston cylinder 13 corresponding to the second gear pump through the pipeline; After the air pressure in the piston cylinder 13 of the second gear pump increases, the high-pressure gas is continuously delivered to the sealing expansion ring 12 through the first air outlet connector 19 at the bottom of the piston cylinder 13, the pipeline, and the first air inlet connector 18 on the extrusion plate 5. The sealing expansion ring 12 of the second gear pump, which has already expanded, further expands under the action of the additional air pressure, and fits more tightly with the joint between the communicating hole 8 and the flange pipe 4, significantly improving the sealing pressure. Since the sealing effect of the sealing expansion ring 12 has been enhanced by the gas pressurization, even if the fluid pressure in the second gear pump increases, it can effectively prevent the fluid from leaking from the joint between the flange pipe 4 and the communicating hole 8, ensuring its stable operation under high load; When the gear pump 2 needs to be hoisted and moved upward due to maintenance needs, the extrusion plate 5 moves upward synchronously under the action of the return spring 16 of the piston cylinder 13 and disengages from the positioning groove 7. At this time, the extrusion plate 5 drives the connecting component to move vertically upward as a whole, and the sealing tube 25 moves upward accordingly. The tooth structure 30 on the outside of the sealing tube 25 engages with the rack 31 again. During the upward movement, it rotates in the opposite direction due to the reaction force of the rack 31. The first filter plate 26 rotates in the opposite direction with the sealing tube 25 and gradually staggers with the second filter plate 28. When the gear pump 2 is completely separated from the support plate 6, the first filter hole 27 and the second filter hole 29 are completely staggered, and the two groups of filter holes block each other. The fluid cannot pass through the filter plate, which can quickly cut off the fluid passage between the pump body to be disassembled and the external pipeline, thereby realizing rapid installation and disassembly of the gear pump 2 without repeatedly removing bolts, significantly shortening maintenance downtime, and reducing the impact on the continuity of industrial production.

[0039] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-sealing and leak-proof copper composite pump body, characterized in that: The invention comprises a support base (1), a plurality of gear pumps (2) are linearly distributed on the support base (1), an input end of the gear pump (2) is connected to a rotating gear (3), a driving mechanism meshing with the rotating gear (3) is provided on the support base (1), a water inlet and a water outlet of the gear pump (2) are both connected to a flange pipe (4), a vertical extrusion plate (5) is provided on one side of the flange pipe (4), a horizontally arranged support plate (6) is provided on the side of the extrusion plate (5) close to the flange pipe (4), a positioning groove (7) corresponding to the extrusion plate (5) is provided on the support base (1), a connecting hole (8) corresponding to the flange pipe (4) is provided on the extrusion plate (5), and a connecting component connected to the connecting hole (8) is provided on the side of the extrusion plate (5).

2. A self-sealing and leak-proof copper composite pump body according to claim 1, characterized in that: One end of the flange pipe (4) is provided with a slot (9), a sealing gasket (10) is provided in the slot (9), the sealing gasket (10) is in extrusion contact with one side of the extrusion plate (5), a fixing ring (11) is provided in the communication hole (8), a sealing expansion ring (12) is provided on the side of the fixing ring (11) away from the communication component, and the sealing expansion ring (12) corresponds to the joint between the communication hole (8) and the flange pipe (4).

3. A self-sealing and leak-proof copper composite pump body according to claim 2, characterized in that: A piston cylinder (13) is vertically arranged in the positioning groove (7), and a horizontally arranged piston plate (14) is provided inside the piston cylinder (13). The upper surface of the piston plate (14) is fixedly connected to a piston rod (15). A side of the piston plate (14) away from the piston rod (15) is fixedly connected to a return spring (16) at the bottom of the piston cylinder (13). The upper end of the piston rod (15) is hinged to the lower end of the extrusion plate (5) through a hinge seat (17); A first air inlet connector (18) connected to the sealing expansion ring (12) is provided on one side of the extrusion plate (5), and a first air outlet connector (19) is provided on one side of the bottom of the fixed end of the piston cylinder (13). The first air outlet connector (19) is connected to the first air inlet connector (18) through a pipeline.

4. A self-sealing and leak-proof copper composite pump body according to claim 3, characterized in that: The upper end and the lower end of the piston cylinder (13) are respectively connected to the second air outlet connector (20) and the second air inlet connector (21). The second air outlet connector (20) corresponding to each group of gear pumps (2) is connected to the second air inlet connector (21) of other gear pumps (2) through a pipeline.

5. The self-sealing and leak-proof copper composite pump body according to claim 4, characterized in that: The communication component includes a sleeve (22), one end of the sleeve (22) corresponds to the communication hole (8), an end of the sleeve (22) away from the communication hole (8) is provided with a connecting pipe (23), one end of the connecting pipe (23) is provided with a flange (24), a sealing pipe (25) is rotatably connected between the connecting pipe (23) and the sleeve (22), a first filter plate (26) is provided on the inner side of the sealing pipe (25), a plurality of groups of circumferentially distributed first filter holes (27) are provided on the first filter plate (26), a second filter plate (28) corresponding to the first filter plate (26) is provided on the inner side of the connecting pipe (23), and a second filter hole (29) corresponding to the first filter hole (27) is provided on the second filter plate (28).

6. The self-sealing and leak-proof copper composite pump body according to claim 5, characterized in that: The outer side of the sealing tube (25) is provided with a circumferentially distributed tooth structure (30), and the support seat (1) is provided with a plurality of groups of vertically arranged racks (31), which mesh with the tooth structure (30) for transmission.

7. The self-sealing and leak-proof copper composite pump body according to claim 6, characterized in that: The driving mechanism includes a driving motor (32) arranged on one side of the support base (1); a mounting groove (33) is provided on the upper surface of the support base (1); an output shaft of the driving motor (32) passes through the mounting groove (33) and is rotatably connected to the mounting groove (33); a plurality of transmission gears (34) meshing with the rotating gear (3) are provided on the support base (1); a plurality of driving gears (35) meshing with the transmission gear (34) are fixedly connected to the output shaft of the driving motor (32); and the transmission gear (34) is fixedly connected to the upper surface of the support base (1) through a connecting frame.

8. The self-sealing and leak-proof copper composite pump body according to claim 7, characterized in that: The upper surface of the extrusion plate (5) is fixedly connected to a handle (36).

9. The self-sealing and leak-proof copper composite pump body according to claim 8, characterized in that: The bottom of the support base (1) is provided with a plurality of groups of vertically arranged support legs (37).

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