Self-sealing anti-leakage copper composite pump body

Abstract

The present application relates to gear pump technical field, specifically said is a kind of self-sealing anti-leakage copper composite pump body, including support seat, several groups of gear pumps are linearly distributed on support seat, the input end of gear pump is connected rotating gear, support seat is equipped with drive mechanism with rotating gear meshing transmission, the water inlet and water outlet of gear pump are all connected with flange pipe, the side of flange pipe is all equipped with vertical extrusion plate;Traditional gear pump is connected by bolt fastening mode, when disassembling, multiple bolts need to be screwed down one by one, time-consuming and laborious and easy to damage thread, the extrusion sealing design of extrusion plate and flange pipe is combined with the automatic reset mechanism of piston cylinder and return spring, the quick installation and disassembly of gear pump are realized, without repeatedly disassembling bolt, significantly shorten the maintenance downtime, reduce the influence on industrial production continuity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gear pumps, in particular to a self-sealing and anti-leakage copper composite pump body. BACKGROUND

[0002] In the field of industrial fluid transportation, gear pumps have become the core equipment in the chemical industry, petroleum industry, food processing industry and other industries due to their stable conveying performance and high volumetric efficiency. However, long-term continuous operation inevitably causes wear and tear, aging, and even sudden mechanical failure of the gears, bearings, and sealing components inside the gear pump. In order to avoid safety accidents or affect product quality caused by leakage, the equipment operation needs to be stopped immediately, and the gear pump needs to be disassembled and repaired.

[0003] Currently, the pump body and connecting components of traditional gear pumps are mostly fastened by bolts. During disassembly and repair, the operator needs to use professional tools such as wrenches and sleeves to unscrew the multiple bolts distributed around the pump body one by one. Due to the large number of bolts and the possible rusting and jamming, the disassembly process is often time-consuming and laborious. In addition, repeated disassembly of the bolts can damage the threads, reduce the connection strength, and affect the sealing performance of the pump body. If the sealing effect is not good after reinstallation, medium leakage problems are likely to occur. Therefore, a self-sealing and anti-leakage copper composite pump body is proposed, which can realize quick disassembly and repair of the gear pump, reduce downtime, and ensure sealing performance, meeting the needs of efficient and stable operation of industrial production. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a self-sealing and anti-leakage copper composite pump body, which can realize quick disassembly and repair of the gear pump, reduce downtime, and ensure sealing performance, meeting the needs of efficient and stable operation of industrial production.

[0005] The technical solution adopted by the present application to solve the technical problems is a self-sealing and anti-leakage copper composite pump body, which includes a support seat, a plurality of groups of gear pumps are linearly distributed on the support seat, the input end of the gear pump is connected to a rotating gear, a drive mechanism is provided on the support seat and engages with the rotating gear for transmission, a flange pipe is connected to the water inlet and outlet of the gear pump, a vertical extrusion plate is provided on one side of the flange pipe, a horizontal 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 seat, a communication hole corresponding to the flange pipe is provided on the extrusion plate, and a communication assembly communicating with the communication hole is provided on the side of the extrusion plate.

[0006] Specifically, one end of the flange pipe is provided with a slot, a sealing gasket is arranged in the slot, the sealing gasket is in extrusion contact with one side of the extrusion plate, a fixing ring is arranged in the communication hole, a sealing expansion ring is arranged on the side of the fixing ring away from the communication assembly, and the sealing expansion ring corresponds to the joint between the communication hole and the flange pipe.

[0007] Specific, the positioning groove is vertically provided with a piston cylinder, the piston cylinder is internally provided with a horizontally arranged piston plate, the upper surface of the piston plate is fixedly connected with a piston rod, the side of the piston plate away from the piston rod is fixedly connected with a return spring at the bottom of the piston cylinder, and the upper end of the piston rod is hingedly connected with the lower end of an extrusion plate through a hinge seat.

[0008] The extrusion plate is provided with a first air inlet joint in communication with the sealing expansion ring on one side, and the fixed end of the piston cylinder is provided with a first air outlet joint on one side at the bottom.

[0009] Specifically, the upper end and the lower end of the piston cylinder are respectively communicated with a second air outlet joint and a second air inlet joint, and the second air outlet joint corresponding to each gear pump is communicated with the second air inlet joint of other gear pumps through a pipeline.

[0010] Specifically, the communication assembly comprises a sleeve, one end of the sleeve corresponds to the communication hole, the end of the sleeve away from the communication hole is provided with a connecting pipe, one end of the connecting pipe is provided with a flange, a sealing pipe is rotatably connected between the connecting pipe and the sleeve, the inner side of the sealing pipe is provided with a first filter plate, a plurality of groups of circumferentially distributed first filter holes are arranged on the first filter plate, the inner side of the connecting pipe is provided with a second filter plate corresponding to the first filter plate, and a plurality of groups of circumferentially distributed second filter holes corresponding to the first filter holes are arranged on the second filter plate.

[0011] Specifically, the outer side of the sealing pipe is provided with circumferentially distributed tooth structures, a plurality of groups of vertically arranged racks are arranged on the support seat, and the racks are in meshing transmission with the tooth structures.

[0012] Specifically, the driving mechanism comprises a driving motor arranged on one side of the support seat, the upper surface of the support seat is provided with a mounting groove, the output shaft of the driving motor penetrates through the mounting groove and is rotatably connected with the mounting groove, a plurality of groups of transmission gears in meshing transmission with the rotating gears are arranged on the support seat, a plurality of groups of driving gears in meshing transmission with the transmission gears are fixedly connected to the output shaft of the driving motor, and the transmission gears are fixedly connected to the upper surface of the support seat through a connecting frame.

[0013] Specifically, the upper surfaces of the extrusion plates are fixedly connected with handles.

[0014] Specifically, the bottom of the support seat is provided with a plurality of groups of vertically arranged supporting legs.

[0015] The beneficial effects of the present application are as follows:

[0016] The self-sealing anti-leakage copper composite pump body of the present application adopts a bolt fastening mode for connection, and a plurality of bolts need to be unscrewed one by one during disassembly, which is time-consuming and laborious and easy to damage the threads. The present application realizes the rapid installation and disassembly of the gear pump through the extrusion sealing design of the extrusion plate and the flange pipe, and the automatic reset mechanism of the piston cylinder and the return spring, without the need to repeatedly disassemble the bolts, significantly shortening the maintenance downtime and reducing the influence on the continuity of industrial production.

[0017] The self-sealing, leak-proof copper composite pump body of this invention uses a sealing gasket in the groove at the end of the flange pipe to press against one side of the extrusion plate. The extrusion force brought by the weight of the gear pump enhances the sealing effect, filling the gap and forming an initial seal. During the downward movement of the extrusion plate, the compressed gas in the piston cylinder is introduced into the sealing expansion ring, causing it to expand and tightly fit the joint between the connecting hole and the flange pipe, specifically strengthening the sealing effect and forming a double sealing guarantee. This 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, ensuring sealing performance and effectively preventing fluid leakage from the connection point.

[0018] The self-sealing, leak-proof copper composite pump body described in this invention allows the gas in the piston cylinder of a certain gear pump to be transported through pipelines to the piston cylinders of other gear pumps when a gear pump fails and needs maintenance. This causes the sealing expansion rings of the other gear pumps to expand further, enhancing their sealing performance to adapt to high-load operation. At the same time, it increases the speed of the remaining gear pumps, increases the fluid discharge, compensates for the flow gap caused by the failed pump, and ensures that the overall system delivery meets the requirements without shutting down the entire system.

[0019] The self-sealing, leak-proof copper composite pump body of this invention features a toothed structure on the outer side of the sealing tube that meshes with a rack on the support base. When the gear pump is installed and moved downwards, the sealing tube rotates to align the filter holes of the first and second filter plates, opening the passage. When disassembled and moved upwards, the sealing tube rotates in the opposite direction to misalign the filter holes, closing the passage. This allows for the disconnection of the fluid passage between the pump body under maintenance and external pipelines without additional operation, preventing leakage at the source without affecting the operation of other pumps, thus ensuring the safety of the maintenance process and the continuity of system operation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is an isometric view of the present invention;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 for Figure 1 Enlarged view of region A;

[0024] Figure 4 for Figure 1 Enlarged view of region B;

[0025] Figure 5 This is a cross-sectional view of the support base portion of the present invention;

[0026] Figure 6 For Figure 5 Enlarged view of region C;

[0027] Figure 7 This is a cross-sectional view of the connecting component of the present invention;

[0028] Figure 8 For Figure 7 Enlarged view of region D;

[0029] Figure 9 This is a cross-sectional view of the piston cylinder of the present invention;

[0030] In the diagram: 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 connector; 19. First air outlet connector; 20. Second air outlet connector; 21. Second air inlet connector; 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. Gear structure; 31. Rack; 32. Drive motor; 33. Mounting groove; 34. Transmission gear; 35. Drive gear; 36. Handle; 37. Support leg. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] To enable rapid disassembly and maintenance of gear pumps, reduce downtime, and ensure sealing performance, thereby meeting the demands of efficient and stable operation in industrial production, as one embodiment of the present invention, such as... Figures 1-3 As shown, the self-sealing leak-proof copper composite pump body of the present invention includes a support base 1, on which several sets of gear pumps 2 are linearly distributed. The input end of the gear pump 2 is connected to a rotating gear 3. The support base 1 is provided with a drive mechanism that meshes with the rotating gear 3. The inlet and outlet of the gear pump 2 are both connected to flange pipes 4. A vertical extrusion plate 5 is provided on one side of each flange pipe 4. A horizontally arranged support plate 6 is provided on the side of the extrusion plate 5 near the flange pipe 4. The support base 1 is provided with a positioning groove 7 corresponding to the extrusion plate 5. The extrusion plate 5 is provided with a connecting hole 8 corresponding to the flange pipe 4. A connecting component communicating with the connecting hole 8 is provided on the side of each extrusion plate 5.

[0033] Exemplary, the gear pump 2 of the present application comprises 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 on the gear pump 2, avoiding the gear pump 2 from deviating during the installation process, then, the two groups of extrusion plates 5 are swung to the vertical state, at this time, the end of the flange pipe 4 at the water inlet and outlet position of the first gear pump and the second gear pump will form extrusion contact with the side surface of the extrusion plate 5, due to the weight of the gear pump 2 itself, the extrusion plate 5 will be gradually lowered, after the extrusion plate 5 is lowered, it is inserted into the corresponding positioning groove 7 on the support base 1, the positioning groove 7 can limit the position of the extrusion plate 5, ensuring the stability of the extrusion between the flange pipe 4 and the extrusion plate 5, thereby ensuring the sealing of the connection between the two, realizing the rapid installation of the gear pump 2;

[0034] 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 through hoisting equipment, as the gear pump 2 is lifted, the pressure of the extrusion plate 5 gradually decreases, the extrusion plate 5 will move upward and be separated from the positioning groove 7, then, 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 state 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 taken away, the whole process does not need to repeatedly disassemble the bolts, realizing the rapid disassembly of the gear pump 2;

[0035] After the installation of the gear pump 2 is completed, the external pipeline is connected in communication with the communication hole 8 on the extrusion plate 5 through the communication assembly on the side surface of the extrusion plate 5, so that the fluid can flow between the gear pump 2 and the external pipeline through the communication assembly, the communication hole 8 and the flange pipe 4, the driving mechanism on the support base 1 is started, the driving mechanism will form meshing transmission with the rotating gear 3 at the input end of the gear pump 2, under the driving of 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 to work, realizing the transportation of the fluid;

[0036] It should be pointed out that the pump body of the gear pump 2 described in the present application is made of copper composite material.

[0037] In order to ensure the sealing between the flange pipe 4 and the extrusion plate 5, exemplary, as shown in Figure 1 、 Figure 3 、 Figure 7 、 Figure 8 The present application further comprises that one end of the flange pipe 4 is provided with a slot 9, the slot 9 is provided with a sealing gasket 10, the sealing gasket 10 is in extrusion contact with one side of the extrusion plate 5, the communication hole 8 is provided with a fixed ring 11, the side of the fixed ring 11 away from the communication assembly is provided with a sealing expansion ring 12, the sealing expansion ring 12 corresponds to the joint between the communication hole 8 and the flange pipe 4.

[0038] In use, the gear pump 2 is placed on the support plate 6 on the side of the extrusion plate 5 close to the flange pipe 4, the support plate 6 plays a stable supporting role on the gear pump 2, ensures that the flange pipe 4 connected with the water inlet and outlet of the gear pump 2 corresponds to the position of the communication hole 8 on the extrusion plate 5, and the extrusion plate 5 is swung to the vertical state, at this time the sealing gasket 10 in the slotted 9 of one end of the flange pipe 4 will form a preliminary extrusion contact with one side of the extrusion plate 5, laying a foundation for subsequent sealing, relying on the weight of the gear pump 2, the extrusion plate 5 is gradually moved 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, avoid its deviation in the working process, so as to ensure the stability of the extrusion state between the flange pipe 4 and the extrusion plate 5, with the extrusion plate 5 moving down, the extrusion degree between the flange pipe 4 and the extrusion plate 5 increases, the sealing gasket 10 is further extruded and contacted with the side surface of the extrusion plate 5, the gap between the flange pipe 4 and the extrusion plate 5 is filled through physical extrusion, the initial sealing effect is enhanced, at the same time, in the process of moving down of the extrusion plate 5, the sealing expansion ring 12 on one side of the fixed ring 11 in the communication hole 8 is expanded, since the sealing expansion ring 12 corresponds to the joint between the communication hole 8 and the flange pipe 4, the expanded sealing expansion ring 12 will be tightly attached to the joint position, and the part is sealed, forming a secondary sealing protection, which significantly improves the sealing between the flange pipe 4, the extrusion plate 5 and the communication hole 8, effectively preventing fluid leakage from the connection part;

[0039] When installing, no bolt operation is needed, only by placing the gear pump 2 on the support plate 6, using its weight to drive the extrusion plate 5 to move down and insert into the positioning groove 7, the installation can be completed, which greatly improves the efficiency; avoids the thread damage problem of traditional bolt connection, guarantees the long-term sealing reliability; simplifies the operation process, reduces the labor cost and technical threshold, and simultaneously triggers the extrusion of the sealing gasket 10 and the expansion of the sealing expansion ring 12 during installation, ensures that the installation meets the standard, can adapt to emergency working conditions, and reduces downtime loss.

[0040] In order to facilitate the expansion of the sealing expansion ring 12, as shown in Figure 3 , Figure 5 , Figure 6 , Figure 9 illustrated, the present application further comprises a piston cylinder 13 vertically arranged in the positioning groove 7, the piston cylinder 13 is internally provided with a horizontally arranged piston plate 14, the upper surface of the piston plate 14 is fixedly connected with a piston rod 15, the side of the piston plate 14 away from the piston rod 15 is fixedly connected with a reset spring 16 at the bottom of the piston cylinder 13, and the upper end of the piston rod 15 is hingedly connected with the lower end of the extrusion plate 5 through a hinged seat 17;

[0041] The side of the extrusion plate 5 is provided with a first air inlet joint 18 communicated with the sealing expansion ring 12, and the bottom side of the fixed end of the piston cylinder 13 is provided with a first air outlet joint 19 communicated with the first air inlet joint 18 through a pipeline.

[0042] In use, the gear pump 2 to be installed is placed on the horizontal support plate 6 on the side of the extrusion plate 5 close to the flange pipe 4, and 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. The hinge seat 17 facilitates the swinging of the extrusion plate 5 to the vertical state in the direction close to the flange pipe 4. The sealing gasket 10 in the slotted end of the flange pipe 4 forms a preliminary extrusion contact with the side of the extrusion plate 5, and the elastic deformation of the sealing gasket 10 fills the small gap between the flange pipe 4 and the extrusion plate 5 to form a first layer of sealing.

[0043] Then, the downward pressure on the support plate 6 generated by the gravity of the gear pump 2 drives 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, so that the downward movement of the extrusion plate 5 pushes 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 below the piston plate 14. The first air outlet joint 19 on the bottom side of the piston cylinder 13 is communicated with 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 enters the sealing expansion ring 12. The sealing expansion ring 12 expands due to inflation, tightly fits the joint between the communication hole 8 and the flange pipe 4, and forms a second layer of sealing. 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 the stable extrusion state of the flange pipe 4 and the extrusion plate 5, and avoiding the sealing failure caused by vibration. When the gear pump 2 needs to be disassembled, the gear pump 2 is lifted upward by 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 the elastic potential energy, pushes the piston plate 14 to move upward, drives the piston rod 15 and the extrusion plate 5 to move upward, and makes the extrusion plate 5 separate from the positioning groove 7. 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 pipe 4, and the sealing state is released. The gear pump 2 can be completely removed.

[0044] When installing, no bolt needs to be screwed, and the sealing can be completed by simply placing, swinging and moving downward. When disassembling, the return spring 16 is automatically reset, which eliminates the rusting and jamming problems of traditional bolt connection, and greatly shortens the maintenance downtime.

[0045] For example, Figure 5 , Figure 6 , Figure 9As shown, the application also includes that the upper end and the lower end of the piston cylinder 13 are respectively communicated with the second gas outlet joint 20 and the second gas inlet joint 21, and the second gas outlet joint 20 of each gear pump 2 is communicated with the second gas inlet joint 21 of other gear pumps 2 through pipelines.

[0046] In use, when the first gear pump needs to be repaired due to failure, the first gear pump is first lifted upward by hoisting equipment to separate it from the support plate 6, at this time, the pressure of the first gear pump on the pressing plate 5 disappears, the elastic potential energy of the reset spring 16 in the piston cylinder 13 corresponding to the first gear pump is released, the piston plate 14 is pushed upward, the piston rod 15 and the pressing plate 5 are moved upward, the pressing plate 5 is separated from the positioning groove 7, and the preliminary disassembly preparation of the first gear pump is completed;

[0047] After the first gear pump is removed, the delivery capacity of the second gear pump needs to be increased to make up for the delivery capacity gap caused by the failure of the first gear pump, so as to meet the total demand of the system for fluid delivery;

[0048] With the first gear pump being completely lifted and removed, the piston plate 14 corresponding to the first gear pump moves upward to the top of the piston cylinder 13 under the continuous action of the reset spring 16, the space above the piston plate 14 is compressed, and the gas in the piston cylinder 13 of the first gear pump is discharged through the second gas outlet joint 20 at the upper end of the piston cylinder 13, since the second gas outlet joint 20 of each gear pump 2 is communicated with the second gas inlet joint 21 of other gear pumps 2 through pipelines, the gas discharged by the first gear pump is directionally delivered to the second gas inlet joint 21 at the lower end of the piston cylinder 13 corresponding to the second gear pump through the pipelines;

[0049] After the gas pressure in the piston cylinder 13 of the second gear pump is increased, the high-pressure gas is continuously delivered into the sealing expansion ring 12 through the first gas outlet joint 19 at the bottom of the piston cylinder 13, the pipelines and the first gas inlet joint 18 on the pressing plate 5, the sealing expansion ring 12 of the second gear pump which has been expanded is further expanded under the action of the additional gas pressure, and is more closely fitted with the joint between the communication hole 8 and the flange pipe 4, the sealing pressure is significantly increased, since the sealing effect of the sealing expansion ring 12 has been strengthened by the gas pressure increase, even if the fluid pressure in the second gear pump is increased, the leakage of the fluid from the joint between the flange pipe 4 and the communication hole 8 can be effectively prevented, and the stable work of the second gear pump under high load is ensured.

[0050] For example, Figure 3 , Figure 7 , Figure 8As shown, the application further comprises that the communication assembly comprises a sleeve 22, one end of the sleeve 22 corresponds to the communication hole 8, and the 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 plate 24, and the connecting pipe 23 is rotatably connected with a sealing pipe 25 between the sleeve 22, the inner side of the sealing pipe 25 is provided with a first filter plate 26, a plurality of groups of circumferentially distributed first filter holes 27 are arranged on the first filter plate 26, the inner side of the connecting pipe 23 is provided with a second filter plate 28 corresponding to the first filter plate 26, and a plurality of groups of second filter holes 29 corresponding to the first filter holes 27 are arranged on the second filter plate 28.

[0051] In order to facilitate the quick cutting of the fluid passage between the pump body to be disassembled and the external pipeline, in use, the gear pump 2 is placed on the supporting plate 6 of the pressing plate 5, the pressing plate 5 is swung to the vertical state, the pressing plate 5 is inserted into the positioning groove 7 and is pressed and sealed with the flange pipe 4, one end of the sleeve 22 of the communication assembly is aligned with the communication hole 8 on the pressing plate 5, the sleeve 22 and the communication hole 8 are ensured to be sealed and communicated, and the end of the connecting pipe 23 away from the sleeve 22 is connected with the conveying pipeline through the flange plate 24, thereby completing the preliminary establishment of the fluid conveying passage.

[0052] The sealing pipe 25 is rotated, the first filter holes 27 on the first filter plate 26 are completely aligned with the second filter holes 29 on the second filter plate 28, at this time, the fluid can pass through the connecting pipe 23, the second filter holes 29, the first filter holes 27, the sealing pipe 25, the sleeve 22 and the communication hole 8 in sequence, the smooth communication between the gear pump 2 and the external pipeline is realized, the second filter holes 29 and the first filter holes 27 can filter the impurities in the fluid, the gear, bearing and other components inside the gear pump 2 are protected from wear and tear, and the service life of the equipment is prolonged.

[0053] When the first gear pump needs to be disassembled due to failure, the first gear pump is hoisted and lifted, and at the same time of lifting, the sealing pipe 25 is rotated, with the rotation of the sealing pipe 25, the first filter plate 26 and the second filter plate 28 are relatively rotated, 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 form mutual shielding, 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, the leakage is prevented from the source, and the safety risk is greatly reduced.

[0054] As shown in the drawings, Figure 3 , Figure 7 , Figure 8 As shown, the application further comprises that the outer side of the sealing pipe 25 is provided with a circumferentially distributed tooth structure 30, a plurality of groups of vertically arranged gear racks 31 are arranged on the supporting seat 1, and the gear racks 31 are meshed and transmitted with the tooth structure 30.

[0055] In use, when the gear pump 2 is placed on the support plate 6 and driven to move downward by gravity, the extrusion plate 5 moves downward along the vertical direction and approaches the positioning groove 7 of the support base 1. At this time, the downward movement of the extrusion plate 5 drives the overall synchronous downward movement of the communication assembly, and the sealing tube 25 moves downward synchronously with the extrusion plate 5. The tooth structure 30 on the outside of the sealing tube 25 meshes with the vertical rack 31 on the support base 1 to drive transmission. Since the rack 31 is fixed on the support base 1, the sealing tube 25 rotates under the reaction force of the teeth of the rack 31 when moving downward vertically, and the first filter plate 26 on the inside of the sealing tube 25 rotates synchronously with the sealing tube 25. When the gear pump 2 is completely 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 coincides with the second filter hole 29 on the second filter plate 28, the filter hole is opened, and the fluid passage is unobstructed.

[0056] When the gear pump 2 needs to be lifted and moved upward for maintenance, the extrusion plate 5 moves upward synchronously under the action of the piston cylinder 13 and the return spring 16, and is separated from the positioning groove 7. At this time, the extrusion plate 5 drives the overall vertical upward movement of the communication assembly, and the sealing tube 25 moves upward. The tooth structure 30 on the outside of the sealing tube 25 meshes with the rack 31 again, and reversely rotates under the reaction force of the rack 31 during the upward movement. The first filter plate 26 reversely rotates with the sealing tube 25, and gradually deviates from 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. Fluid cannot pass through the filter plate, and the passage is cut off.

[0057] 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 disassembly actions of the gear pump 2 itself, and are achieved by mechanical linkage through the meshing of the tooth structure 30 and the rack 31. No manual adjustment or additional power source is needed, which simplifies the operation process and reduces the risk of human error.

[0058] 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, and the rack 31 forms a rigid barrier to the extrusion plate 5, which can effectively limit the swing amplitude of the extrusion plate 5. If the swing amplitude is too large, it will be difficult to accurately reset the extrusion plate 5 to the sealing position corresponding to the flange pipe 4 when reinstalling the gear pump 2, which may cause problems such as poor contact between the sealing gasket 10 and the extrusion plate 5, and the sealing expansion ring 12 cannot be aligned with the joint.

[0059] For example, Figure 1 , Figure 2 , Figure 4As shown in the figure, the driving mechanism comprises 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 penetrates through the mounting groove 33 and is rotationally connected with the mounting groove 33, a plurality of sets of transmission gears 34 meshing with the rotating gears 3 are arranged on the support base 1, a plurality of sets of driving gears 35 meshing with the transmission gears 34 are fixedly connected on the output shaft of the driving motor 32, and the transmission gears 34 are fixedly connected with the upper surface of the support base 1 through a connecting frame.

[0060] In use, the driving motor 32 is started, the output shaft drives the driving gears 35 to rotate, the driving gears 35 drive the transmission gears 34 to rotate synchronously through meshing, the transmission gears 34 drive the rotating gears 3 of the gear pump 2 to rotate, the rotating gears 3 drive the internal gear structure of the gear pump 2 to rotate, the fluid is sucked and discharged, and the conveying operation is completed.

[0061] When a single set of gear pumps 2 is removed for failure, the output power of the driving motor 32 can be adjusted to increase the rotating speed of the remaining gear pumps 2 to make up for the gap in conveying capacity; when a set of gear pumps 2 is removed for maintenance, the corresponding transmission gears 34 are disengaged from the rotating gears 3, but the driving motor 32 can still drive the remaining transmission gears 34 to rotate through other driving gears 35, thereby reducing the loss of production interruption.

[0062] As shown in the figure, Figure 1 , Figure 3 As shown in the figure, the upper surface of the extrusion plate 5 is fixedly connected with a handle 36.

[0063] In use, the handle 36 facilitates the swinging of the extrusion plate 5, thereby improving the operation convenience.

[0064] As shown in the figure, Figure 1 As shown in the figure, the bottom of the support base 1 is provided with a plurality of sets of vertically arranged support legs 37.

[0065] In use, the support legs 37 can ensure the overall stability of the support base 1 and the gear pump 2.

[0066] In use, the gear pump 2 of the present application comprises 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 stably support the gear pump 2, thereby avoiding the gear pump 2 from being deviated during installation, then, the two sets of extrusion plates 5 are swung to the vertical state, at this time, the end part 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 extrusion contact with the side surface of the extrusion plate 5, and the sealing gasket 10 in the slot 9 at one end of the flange pipe 4 will form preliminary extrusion contact with one side of the extrusion plate 5, thereby laying a foundation for subsequent sealing.

[0067] By the weight of the gear pump 2 itself, the extrusion plate 5 is gradually moved down 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 avoid its deviation during work, thereby ensuring the stability of the extrusion state between the flange pipe 4 and the extrusion plate 5, as the extrusion plate 5 moves down, the extrusion force between the flange pipe 4 and the extrusion plate 5 increases, and the sealing gasket 10 is further tightly extruded with the side of the extrusion plate 5, thereby filling the gap between the flange pipe 4 and the extrusion plate 5 through physical extrusion, and enhancing the initial sealing effect;

[0068] At the same time, in the process of moving down the extrusion plate 5, the lower end of the extrusion plate 5 is connected with the upper end of the piston rod 15 through the hinge seat 17, so that the extrusion plate 5 moves down to push the piston rod 15 to move downward, the piston rod 15 moves down to drive the piston plate 14 in the piston cylinder 13 to move downward synchronously, the return spring 16 below the piston plate 14 is compressed, the first gas outlet 19 on one side of the bottom of the piston cylinder 13 is communicated with the first gas inlet 18 on the extrusion plate 5 through the pipeline, the compressed gas in the piston cylinder 13 enters the first gas inlet 18 through the first gas outlet 19 and the pipeline, and finally enters the sealing expansion ring 12, so that the sealing expansion ring 12 expands, and since the sealing expansion ring 12 corresponds to the joint between the communication hole 8 and the flange pipe 4, the expanded sealing expansion ring 12 will tightly fit in the joint position to seal the position specifically, forming a secondary sealing guarantee, which significantly improves the sealing between the flange pipe 4, the extrusion plate 5 and the communication hole 8, effectively preventing fluid leakage from the connection part;

[0069] When the gear pump 2 is placed on the support plate 6 and the extrusion plate 5 is moved down by its own weight, 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 entire communication assembly to move downward synchronously, 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 is engaged with the vertical gear rack 31 on the support seat 1, since the gear rack 31 is fixed on the support seat 1, the sealing tube 25 rotates under the reaction force of the gear teeth of the gear rack 31 while moving downward vertically, the first filter plate 26 on the inside of the sealing tube 25 rotates synchronously with the sealing tube 25, and gradually aligns with the second filter plate 28 inside the connecting pipe 23, when the gear pump 2 is completely 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 coincides with the second filter hole 29 on the second filter plate 28, the filter holes are opened, and the fluid passage is unobstructed;

[0070] Then start the drive motor 32, the output shaft drives the drive gear 35 to rotate, the drive gear 35 drives the transmission gear 34 to rotate synchronously through the meshing effect, the transmission gear 34 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 rotate, realizes the suction and discharge of fluid, and completes the conveying operation.

[0071] When the first gear pump needs to be repaired, the first gear pump is first lifted upward by lifting equipment to separate it from the support plate 6. At this time, the pressure of the first gear pump on the extrusion plate 5 disappears, the reset spring 16 in the piston cylinder 13 corresponding to the first gear pump releases the elastic potential energy, pushes the piston plate 14 to move upward, drives 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;

[0072] After the first gear pump is removed, in order to make up for the lack of delivery capacity, the output power of the driving motor 32 can be adjusted to increase the delivery capacity of the second gear pump, so as to fill the flow gap caused by the failure of the first gear pump and meet the total demand of the system for fluid delivery. At the same time, when a group of gear pumps 2 are disassembled and repaired, the corresponding driving gear 34 is disengaged from the rotating gear 3, but the driving motor 32 can still drive the remaining driving gears 34 to rotate through other driving gears 35, reducing the loss of production interruption;

[0073] With the first gear pump being completely lifted out, the corresponding piston plate 14 moves upward to the top of the piston cylinder 13 under the continuous action of the reset spring 16, the space above the piston plate 14 is compressed, and the gas in the piston cylinder 13 of the first gear pump is discharged through the second gas outlet joint 20 at the upper end of the piston cylinder 13. Since the second gas outlet joint 20 of each group of gear pumps 2 is connected with the second gas inlet joint 21 of other gear pumps 2 through a pipeline, the gas discharged by the first gear pump is directionally transported to the second gas inlet joint 21 at the lower end of the piston cylinder 13 of the second gear pump through the pipeline;

[0074] After the gas pressure in the piston cylinder 13 of the second gear pump is increased, the high-pressure gas is continuously transported into the sealing expansion ring 12 through the first gas outlet joint 19 at the bottom of the piston cylinder 13, the pipeline and the first gas inlet joint 18 on the extrusion plate 5. The sealing expansion ring 12 of the second gear pump, which has been expanded, is further expanded under the action of the additional gas pressure, and is more tightly fitted with the joint between the communication hole 8 and the flange pipe 4. The sealing pressure is significantly improved. Since the sealing effect of the sealing expansion ring 12 has been strengthened by gas pressurization, even if the fluid pressure in the second gear pump is increased, the leakage of fluid from the joint between the flange pipe 4 and the communication hole 8 can be effectively prevented, ensuring stable work under high load;

[0075] When the gear pump 2 is hoisted up for maintenance, the extrusion plate 5 is synchronously lifted up under the action of the piston cylinder 13 reset spring 16, and is separated from the positioning groove 7, at this time, the extrusion plate 5 drives the whole communication assembly to vertically move up, the sealing tube 25 moves up, the tooth structure 30 outside the sealing tube 25 is meshed with the rack 31 again, and reversely rotates in the process of moving up under the action of the rack 31, the first filter plate 26 reversely rotates with the sealing tube 25, and is gradually staggered 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 are blocked, the fluid cannot pass through the filter plate, the fluid passage between the pump body to be disassembled and the external pipeline can be quickly cut off, the gear pump 2 is quickly installed and disassembled, the bolts do not need to be repeatedly disassembled, the maintenance downtime is significantly shortened, and the influence on the continuity of industrial production is reduced.

[0076] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-sealing leak-proof copper composite pump body, characterized in that, The utility model provides a kind of gear pump, including support seat (1), linear distribution several groups of gear pump (2) on support seat (1), the input end of gear pump (2) is connected rotating gear (3), support seat (1) is equipped with with rotating gear (3) meshing transmission drive mechanism, flange pipe (4) is connected with the water inlet and outlet of gear pump (2), the side of flange pipe (4) is equipped with vertical extrusion plate (5), the side of extrusion plate (5) close to flange pipe (4) is equipped with horizontally arranged support plate (6), support seat (1) is equipped with with extrusion plate (5) corresponding positioning slot (7), extrusion plate (5) is equipped with with flange pipe (4) corresponding communication hole (8), the side of extrusion plate (5) is arranged with the communication assembly that communication hole (8) is communicated; The side of flange pipe (4) is equipped with with slot (9), slot (9) is equipped with sealing washer (10), sealing washer (10) and the side extrusion of extrusion plate (5) contact, fixed ring (11) is equipped with in communication hole (8), the side of fixed ring (11) away from communication assembly is equipped with sealing expansion ring (12), sealing expansion ring (12) and communication hole (8) and flange pipe (4) joint corresponding place; Positioning slot (7) is vertically arranged in piston cylinder (13), the inside of piston cylinder (13) is equipped with horizontally arranged piston plate (14), the upper surface of piston plate (14) is fixedly connected with piston rod (15), the side of piston plate (14) away from piston rod (15) is fixedly connected reset spring (16) with the bottom of piston cylinder (13), the upper end of piston rod (15) is hinged with the lower end of extrusion plate (5) through hinged seat (17); The side of extrusion plate (5) is equipped with with first air inlet (18) that sealing expansion ring (12) is communicated, the side of the fixed end bottom of piston cylinder (13) is equipped with first air outlet (19), first air outlet (19) is communicated with first air inlet (18) by pipeline.

2. A self-sealing leak-proof copper composite pump body as claimed in claim 1, wherein, The upper end and lower end of piston cylinder (13) are communicated second air outlet (20) and second air inlet (21) respectively, and the corresponding second air outlet (20) of each gear pump (2) is communicated with the second air inlet (21) of other gear pumps (2) by pipeline.

3. A self-sealing leak-proof copper composite pump body as claimed in claim 2, wherein, The communication assembly includes a sleeve (22), one end of the sleeve (22) corresponds to the communication hole (8), the 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), the connecting pipe (23) and the sleeve (22) are rotatably connected with a sealing pipe (25), the inside of the sealing pipe (25) is provided with a first filter plate (26), the first filter plate (26) is provided with a plurality of circumferentially distributed first filter holes (27), the inside of the connecting pipe (23) is provided with a second filter plate (28) corresponding to the first filter plate (26), the second filter plate (28) is provided with a plurality of circumferentially distributed second filter holes (29) corresponding to the first filter holes (27).

4. A self-sealing leak-proof copper composite pump body as claimed in claim 3, wherein, The outside of the sealing pipe (25) is provided with a circumferentially distributed tooth structure (30), the support seat (1) is provided with a plurality of vertically arranged racks (31), the tooth structure (30) and the rack (31) are meshingly connected.

5. A self-sealing leak-proof copper composite pump body as claimed in claim 4, wherein, The driving mechanism comprises 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) penetrates through the mounting groove (33) and is rotationally connected with the mounting groove (33), a plurality of groups of transmission gears (34) meshing with the rotating gears (3) are arranged on the support base (1), a plurality of groups of driving gears (35) meshing with the transmission gears (34) are fixedly connected on the output shaft of the driving motor (32), and the transmission gears (34) are fixedly connected with the upper surface of the support base (1) through the connecting frame.

6. A self-sealing leak-proof copper composite pump body as claimed in claim 5, wherein, The upper surface of the extrusion plate (5) is fixedly connected with a handle (36).

7. A self-sealing leak-proof copper composite pump body as claimed in claim 6, wherein, The bottom of the support base (1) is provided with a plurality of groups of vertically arranged supporting legs (37).

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