Sealing structure for vertical guide vane self-priming pump

Abstract

The invention relates to the technical field of self-priming pump sealing, in particular to a sealing structure for a vertical guide vane self-priming pump, which comprises a pump body, a sealing mechanism and a self-sealing mechanism, the sealing mechanism is arranged at the input end of the vertical guide vane self-priming pump, and the self-sealing mechanism is arranged on the inner side of the sealing mechanism. And the sealing mechanism comprises a sealing assembly, a sealing assembly and a positioning assembly, the sealing assembly is arranged on the surface of the input end of the pump body in a sleeving mode, and the sealing assembly is arranged on the side, away from the pump body, of the sealing assembly. The sealing structure for the vertical guide vane self-priming pump is provided with the sealing structure capable of being adaptively adjusted according to different pipe diameters, so that the sealing structure can adapt to connecting ports of the self-priming pumps with different pipe diameters, and the sealing flexibility of the connecting ports of the self-priming pumps with different pipe diameters is improved; and the sealing structure capable of automatically improving the sealing effect is arranged, so that the sealing effect can be automatically improved when the self-priming pump operates, and the stability of sealing the connecting port of the self-priming pump is improved.

Description

Technical Field

[0001] The invention relates to the technical field of self-priming pump seals, in particular to a sealing structure for a vertical guide vane self-priming pump. Background Art

[0002] As we all know, in the operation of a vertical guide vane self-priming pump, the sealing structure is a key component to ensure its normal operation. It is mainly used to prevent liquid leakage in the pump, maintain the vacuum degree during the self-priming process, and protect bearings and other components from medium corrosion and impurity wear. The sealing structure is usually composed of a shaft seal assembly and auxiliary sealing components. Through reasonable design and combination, effective sealing of the pump shaft, pump casing and other parts can be achieved.

[0003] After searching, a Chinese patent discloses an axial sealing structure of a self-priming pump shaft, and its application announcement number is: CN112032098B. The patent includes a pump casing, a pump shaft, a front sealing assembly and a rear sealing shaft; the pump shaft is horizontally arranged inside the pump casing, and the front sealing assembly and the rear sealing assembly are respectively arranged on the surface of the pump shaft; the front sealing assembly includes a dynamic ring, a fixed rod and a rotating ring; a fixed rod is arranged at the center of the dynamic ring, the fixed rod passes through the center of the dynamic ring and the two ends of the fixed rod are fixedly connected to the inside of the dynamic ring; the pump shaft is provided with a through hole at the inner side of the impeller, the size of the through hole matches the size of the fixed rod and the dynamic ring is fixedly connected to the pump shaft through the cooperation of the fixed rod and the through hole; a rotating ring is provided on the outside of the dynamic ring; a number of first extrusion springs are arranged between the dynamic ring and the rotating ring; the rear sealing assembly is arranged at the pump shaft at the pump cover position, and the rear sealing assembly includes a static ring, a first sealing member and a second sealing member; grooves are provided at corresponding positions on the surface of the pump shaft.

[0004] When the connection port of the self-priming pump is connected to an external pipe, a sealing structure is used to seal the connection. The problems of the existing technology are: due to the lack of a sealing structure that can be adaptively adjusted for different pipe diameters, the sealing structure cannot be adapted to the connection ports of the self-priming pumps with different pipe diameters, which reduces the flexibility of sealing the connection ports of the self-priming pumps with different pipe diameters; and there is a lack of a sealing structure that can automatically increase the sealing effect, so the sealing effect cannot be automatically increased when the self-priming pump is in operation, which reduces the stability of the sealing of the connection ports of the self-priming pumps. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a sealing structure for a vertical guide vane self-priming pump, which has a sealing structure that can be adaptively adjusted for different pipe diameters. Therefore, the sealing structure can be adapted to the connection ports of self-priming pumps with different pipe diameters, thereby improving the flexibility of sealing at the connection ports of self-priming pumps with different pipe diameters. In addition, the present invention has a sealing structure that automatically increases the sealing effect. Therefore, the sealing effect can be automatically increased when the self-priming pump is operating, thereby improving the stability of the sealing at the connection ports of the self-priming pump.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A sealing structure for a vertical guide vane self-priming pump, comprising a pump body, a closing mechanism and a self-sealing mechanism, wherein the closing mechanism is arranged at the input end of the vertical guide vane self-priming pump, and the self-sealing mechanism is arranged on the inner side of the closing mechanism, the closing mechanism comprises an encryption component, a sealing component and a positioning component, the encryption component is sleeved on the surface of the input end of the pump body, the sealing component is arranged on the side of the encryption component away from the pump body, the positioning component is arranged on the inner side of the sealing component, the self-sealing mechanism comprises a transmission component, a guide component, a conveying component, a limiting component, an assembly component and a drainage component, the transmission component is arranged on the inner side of the input end of the pump body, the guide component is arranged on the front side of the transmission component, the conveying component is arranged on the surface of the guide component, the limiting component is arranged on the rear side of the guide component, the assembly component is arranged on the surface of the limiting component, and the drainage component is arranged on the inner side of the assembly component.

[0007] By adopting the above technical solution, a closing mechanism and a self-sealing mechanism are set up, and the pump body is an existing vertical guide vane self-priming pump equipment. The closing mechanism can seal the connection between the input end of the pump body and the external pipeline, and the sealing effect can be gradually increased with the suction of the self-sealing mechanism. The self-sealing mechanism can extract the gas in the closing mechanism along with the fluid transported in the pump body, so that the closing mechanism maintains a negative pressure space, thereby increasing the sealing performance of the closing mechanism.

[0008] The present invention is further configured as follows: the encryption component includes an introduction sleeve, an annular airbag and an extrusion sleeve, the introduction sleeve is arranged on the surface of the input end of the pump body, the annular airbag is connected to the side of the introduction sleeve away from the pump body, and the extrusion sleeve is connected to the side of the annular airbag away from the introduction sleeve.

[0009] By adopting the above technical solution, through setting up an encryption component, the introduction sleeve can cooperate with the annular airbag and the extrusion sleeve. The annular airbag is limited by the extrusion sleeve and the introduction sleeve, and the annular airbag can be limited to the surface of the input end of the pump body, thereby sealing the pump body. The shape of the annular airbag can be changed to make it expand by reducing the distance between the introduction sleeve and the extrusion sleeve, so that the annular airbag can further increase the sealing stability of the pump body due to expansion.

[0010] The present invention is further configured as follows: the sealing assembly includes a closing sleeve, a highly flexible sealing sleeve and a drainage groove, the closing sleeve is connected to the side of the extrusion sleeve away from the pump body, the highly flexible sealing sleeve is connected to the inner side of the closing sleeve, and the drainage groove is arranged on the inner side of the highly flexible sealing sleeve.

[0011] By adopting the above technical solution, by setting up a sealing component, the closing sleeve can cooperate with the high-flexibility sealing sleeve and the drainage groove, and a closed space is formed by the closing sleeve, the high-flexibility sealing sleeve and the encryption component. A closed space can be formed between the internal pump body and the external pipe, and the air sucked by the self-sealing mechanism can be extracted from between the closing sleeve and the high-flexibility sealing sleeve through the drainage groove. The high-flexibility sealing sleeve can adapt to the shape of the pump body and the external pipe, thereby further fitting on its surface to increase the sealing effect.

[0012] The present invention is further configured as follows: the positioning assembly includes a mounting ring, a positioning ring and a positioning rod, the mounting ring is arranged on the inner side of the high-flexibility sealed sleeve, the surface of the mounting ring contacts the input end of the pump body, the positioning ring is fixedly connected to the inner side of the mounting ring, and the positioning rod is fixedly connected to the inner side of the positioning ring.

[0013] By adopting the above technical solution, through setting up the positioning assembly, the mounting ring can cooperate with the positioning ring and the positioning rod, and the positioning ring can be limited by the mounting ring. The pump body and the external pipeline can be connected through the mounting ring with screws. At the same time, the structure of the self-sealing mechanism can be supported and limited by the positioning ring and the positioning rod.

[0014] The present invention is further configured as follows: the transmission assembly includes a transmission ring sleeve, a transmission fan blade and a transmission rotating rod, the transmission ring sleeve is clamped on the inner side of the input end of the pump body, the transmission fan blade is rotatably connected to the front side of the inner side of the transmission ring sleeve, the transmission rotating rod is fixedly connected to the rear side of the transmission fan blade, and the surface of the transmission rotating rod is rotatably connected to the inner side of the transmission ring sleeve.

[0015] By adopting the above technical solution, a transmission assembly is set up, and the transmission ring sleeve can cooperate with the transmission blades and the transmission rotating rod. The transmission blades and the transmission rotating rod are limited to the inner side of the input end of the pump body through the transmission ring sleeve. When the pump body conveys fluid or the external pipeline inputs fluid, the transmission rotating rod can be driven axially along the transmission ring sleeve by the transmission blades along with the fluid, which can provide the power required for the rotation of the guide assembly connected to the transmission rotating rod.

[0016] The present invention is further configured as follows: the guide assembly includes a guide rotating block, an assembly ring sleeve and a guide ring sleeve, the guide rotating block is fixedly connected to the rear side of the transmission rotating rod, the assembly ring sleeve is fixedly connected to the surface of the guide rotating block, and the guide ring sleeve is clamped on the surface of the assembly ring sleeve.

[0017] By adopting the above technical solution, by setting up a guide component, the guide turn block can cooperate with the assembly ring sleeve and the guide ring sleeve, and the guide turn block provides support and limitation for the assembly ring sleeve. When the guide ring sleeve is assembled on the assembly ring sleeve, it can rotate together with the axial rotation of the guide turn block, thereby driving the conveying component to rotate together, providing the required movement mode for the conveying component to transport air.

[0018] The present invention is further configured as follows: the conveying assembly includes a conveying plate, a conveying wheel and a drainage groove, the conveying plate is fixedly connected to the surface of the guide ring sleeve, the conveying wheel is rotatably connected to the inner side of the conveying plate, and the drainage groove is provided on the surface of the conveying wheel.

[0019] By adopting the above technical solution, by setting up a conveying component, the conveying plate can cooperate with the conveying wheel and the drainage groove, and the conveying wheel is supported and limited by the conveying plate, so that the conveying wheel can move together with the rotation of the conveying plate, and the drainage groove guides the drainage component, driving the air in the drainage component to move continuously, so that the air in the drainage component can be continuously pumped from the closing mechanism into the pump body until a negative pressure space is formed in the closing mechanism.

[0020] The present invention is further configured as follows: the limiting assembly includes a limiting substrate, a limiting inner ring and a limiting hole, the limiting substrate is rotatably connected to the rear side of the guide rotating block, the limiting inner ring is fixedly connected to the front side of the limiting substrate, and the limiting hole is arranged at the top of the limiting inner ring.

[0021] By adopting the above technical solution, through setting a limit assembly, the limit substrate can cooperate with the limit inner ring and the limit hole, and the limit inner ring can be supported and limited by the limit substrate. The limit substrate can use the guide block as the support point to fix the orientation of the limit inner ring and the limit hole and the orientation of the guide block, thereby increasing the stability of the limit hole when limiting the drainage assembly.

[0022] The present invention is further configured as follows: the assembly component includes an assembly outer ring, an assembly block and an assembly groove, the assembly outer ring is fixedly connected to the surface of the limiting inner ring, the surface of the assembly outer ring is clamped with the inner side of the positioning ring, the assembly block is clamped at the top of the inner side of the assembly outer ring, and the assembly groove is provided at the top of the assembly block.

[0023] By adopting the above technical solution, by setting up an assembly component, the assembly outer ring can cooperate with the assembly block and the assembly groove, and the assembly block and the limiting inner ring are supported and limited by the assembly outer ring, so that the position of the assembly block and the limiting inner ring can be kept fixed, so that the assembly groove on the assembly block can be connected with the limiting hole, so that the assembly groove and the limiting hole can limit the drainage component at the same time and increase the stability of the drainage component when limiting. The assembly block can be disassembled and assembled from the assembly outer ring in a snap-on manner, so that the drainage component can be taken out for maintenance and replacement by disassembling the assembly block.

[0024] The present invention is further configured as follows: the drainage assembly includes an inlet pipe, a drainage hose and a discharge pipe, the inlet pipe is arranged on the inner side of the assembly groove, the drainage hose is connected to the bottom of the inlet pipe, the surface of the drainage hose is in contact with the inner side of the limiting inner ring, the side of the drainage hose away from the limiting inner ring is in contact with the conveying wheel, and the discharge pipe is connected to the side of the drainage hose away from the inlet pipe.

[0025] By adopting the above technical solution, through setting up a drainage component, the inlet pipe can cooperate with the drainage hose and the discharge pipe. Through the extrusion of the drainage hose as the conveying wheel circulates, the air at the inlet pipe can be continuously transported to the discharge pipe, so that the air in the closed mechanism can be transported into the pump body, so that negative pressure is formed in the closed mechanism.

[0026] Compared with the prior art, the present invention provides a sealing structure for a vertical guide vane self-priming pump, which has the following beneficial effects: A sealing structure for a vertical guide vane self-priming pump is provided. By providing a closing mechanism, an encryption component can cooperate with a sealing component and a positioning component. The encryption component can seal the input end of the pump body and the output end of the external pipeline. A sealed space can be formed by connecting with the sealing component. The positioning component can connect the pump body to the external pipeline. This sealing structure for a vertical guide vane self-priming pump is provided with a self-sealing mechanism, wherein a transmission component can cooperate with a guide component, a conveying component, a limit component, an assembly component and a drainage component. The transmission component rotates along with the fluid conveyed by the pump body and the external pipeline, and can drive the guide component to rotate the conveying component, so that the conveying component can continuously convey the air in the drainage component from the sealing mechanism to the pump body when the conveying component rotates axially, so that the space in the sealing mechanism forms a negative pressure environment, and the airtightness of the pump body when it is connected to the external pipeline through the sealing mechanism is increased. The assembly component can cooperate with the assembly component when the conveying component conveys the air in the drainage component, and position the orientation between the drainage component and the transmission component, thereby increasing the stability of the transmission component and the drainage component during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the sealing mechanism structure of the present invention; Figure 3 A schematic diagram of the encryption component structure of the present invention; Figure 4 is a schematic diagram of the sealing assembly structure of the present invention; Figure 5 A schematic diagram of the positioning component structure in the present invention; Figure 6 Schematic diagram of the self-sealing mechanism structure of the present invention; Figure 7 is a schematic diagram of the transmission assembly structure of the present invention; Figure 8 is a schematic diagram of the guiding component structure of the present invention; Figure 9 is a schematic diagram of the conveying component structure of the present invention; Figure 10 Schematic diagram of the structure of the limiting component in the present invention; Figure 11 is a schematic diagram of the assembly component structure of the present invention; Figure 12 Schematic diagram of the drainage component structure in the present invention.

[0028] Figure: 1, pump body; 2, closing mechanism; 21, encryption component; 211, introduction sleeve; 212, annular airbag; 213, extrusion sleeve; 22, sealing component; 221, closing sleeve; 222, high-flexibility sealing sleeve; 223, drainage groove; 23, positioning component; 231, mounting ring; 232, positioning ring; 233, positioning rod; 3, self-sealing mechanism; 31, transmission component; 311, transmission ring; 312, transmission blade; 313, transmission rotating rod; 32, guide Component; 321, guide block; 322, assembly ring; 323, guide ring; 33, conveying component; 331, conveying plate; 332, conveying wheel; 333, drainage groove; 34, limiting component; 341, limiting base plate; 342, limiting inner ring; 343, limiting hole; 35, assembly component; 351, assembly outer ring; 352, assembly block; 353, assembly groove; 36, drainage component; 361, inlet pipe; 362, drainage hose; 363, discharge pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1 See also Figure 1-5A sealing structure for a vertical guide vane self-priming pump includes a pump body 1 and a closing mechanism 2. The closing mechanism 2 is arranged at the input end of the vertical guide vane self-priming pump 1. The closing mechanism 2 includes an encryption component 21, a sealing component 22 and a positioning component 23. The encryption component 21 is sleeved on the surface of the input end of the pump body 1, the sealing component 22 is arranged on the side of the encryption component 21 away from the pump body 1, and the positioning component 23 is arranged on the inner side of the sealing component 22. The closing mechanism 2, the encryption component 21 can cooperate with the sealing component 22 and the positioning component 23. The encryption component 21 can seal the input end of the pump body 1 and the output end of the external pipeline, and can form a sealed space by connecting with the sealing component 22. The positioning component 23 can connect the pump body 1 to the external pipeline.

[0031] Among them, the encryption component 21 includes an introduction sleeve 211, an annular airbag 212 and an extrusion sleeve 213. The introduction sleeve 211 is sleeved on the surface of the input end of the pump body 1, the annular airbag 212 is connected to the side of the introduction sleeve 211 away from the pump body 1, and the extrusion sleeve 213 is connected to the side of the annular airbag 212 away from the introduction sleeve 211. By setting the encryption component 21, the introduction sleeve 211 can cooperate with the annular airbag 212 and the extrusion sleeve 213. The annular airbag 212 is limited by the extrusion sleeve 213 and the introduction sleeve 211, and the annular airbag 212 can be limited to the surface of the input end of the pump body 1, thereby sealing the pump body 1, and the shape of the annular airbag 212 can be changed by reducing the distance between the introduction sleeve 211 and the extrusion sleeve 213 to make it expand, so that the annular airbag 212 can further increase the sealing stability of the pump body 1 due to expansion.

[0032] Among them, the sealing component 22 includes a closing sleeve 221, a high-flexibility sealing sleeve 222 and a drainage groove 223. The closing sleeve 221 is connected to the side of the extrusion sleeve 213 away from the pump body 1, the high-flexibility sealing sleeve 222 is connected to the inner side of the closing sleeve 221, and the drainage groove 223 is arranged on the inner side of the high-flexibility sealing sleeve 222. By setting the sealing component 22, the closing sleeve 221 can cooperate with the high-flexibility sealing sleeve 222 and the drainage groove 223, and form a closed space with the closing sleeve 221 and the high-flexibility sealing sleeve 222 and the encryption component 21. A closed space can be formed between the internal pump body 1 and the external pipeline, and the air sucked by the self-sealing mechanism 3 can be extracted from between the closing sleeve 221 and the high-flexibility sealing sleeve 222 through the drainage groove 223. The high-flexibility sealing sleeve 222 can adapt to the shape of the pump body 1 and the external pipeline, thereby further fitting on its surface to increase the sealing effect.

[0033] Among them, the positioning assembly 23 includes a mounting ring 231, a positioning ring 232 and a positioning rod 233. The mounting ring 231 is arranged on the inner side of the high-flexibility sealed sleeve 222. The surface of the mounting ring 231 contacts the input end of the pump body 1. The positioning ring 232 is fixedly connected to the inner side of the mounting ring 231. The positioning rod 233 is fixedly connected to the inner side of the positioning ring 232. By setting the positioning assembly 23, the mounting ring 231 can cooperate with the positioning ring 232 and the positioning rod 233. The positioning ring 232 is limited by the mounting ring 231. The pump body 1 and the external pipeline can be connected through the mounting ring 231 with external screws. At the same time, the structure of the self-sealing mechanism 3 can be supported and limited by the positioning ring 232 and the positioning rod 233.

[0034] The working principle of this embodiment is as follows: first, the input end of the pump body 1 and the output end of the external pipe are respectively connected to the mounting ring 231, and then the introduction sleeve 211, the annular airbag 212 and the extrusion sleeve 213 are respectively mounted on the input end surface of the pump body 1 and the surface of the output end of the external pipe. When the pump body 1 and the external pipe convey the fluid, the air in the high-flexibility sealing sleeve 222 is pumped into the pump body 1 through the self-sealing mechanism 3, and the high-flexibility sealing sleeve 222 will send out the air in the gaps between the introduction sleeve 211, the annular airbag 212, the extrusion sleeve 213 and the sealing sleeve 221 through the drainage groove 223 until the space inside the high-flexibility sealing sleeve 222 forms a negative pressure, and the high-flexibility sealing sleeve 222 will fit on the surface of the input end of the pump body 1, the surface of the output end of the external pipe and the surface of the mounting ring 231 to complete the sealing.

[0035] Example 2 refer to Figure 6-12A sealing structure for a vertical guide vane self-priming pump also includes a self-sealing mechanism 3, wherein the self-sealing mechanism 3 includes a transmission component 31, a guide component 32, a conveying component 33, a limit component 34, an assembly component 35 and a drainage component 36. The transmission component 31 is arranged on the inner side of the input end of the pump body 1, the guide component 32 is arranged on the front side of the transmission component 31, the conveying component 33 is arranged on the surface of the guide component 32, the limit component 34 is arranged on the rear side of the guide component 32, the assembly component 35 is arranged on the surface of the limit component 34, and the drainage component 36 is arranged on the inner side of the assembly component 35. The self-sealing mechanism 3, the transmission component 31 can be connected with the guide component 32, the conveying component 33, the limit component 34, the assembly component 35 and the drainage component 36 cooperates with the transmission component 31 to rotate with the fluid transported by the pump body 1 and the external pipeline, which can drive the guide component 32 to rotate the conveying component 33, so that the conveying component 33 can continuously transport the air in the drainage component 36 from the closing mechanism 2 to the pump body 1 when it rotates axially, so that the space in the closing mechanism 2 forms a negative pressure environment, and increases the airtightness of the pump body 1 when it is connected to the external pipeline through the closing mechanism 2. The assembly component 35 can cooperate with the assembly component 35 when the conveying component 33 transports the air in the drainage component 36 to position the orientation between the drainage component 36 and the conveying component 33, thereby increasing the stability of the conveying component 33 and the drainage component 36 during operation.

[0036] When the jack is in the air, the driving mechanism 314 is lifted up and the driving mechanism 314 is in the air, and the jack is in the air. When the jack is in the air, the driving mechanism 314 is lifted up and the driving mechanism 314 is in the air.

[0037] Among them, the guide assembly 32 includes a guide rotating block 321, an assembly ring sleeve 322 and a guide ring sleeve 323. The guide rotating block 321 is fixedly connected to the rear side of the transmission rotating rod 313, the assembly ring sleeve 322 is fixedly connected to the surface of the guide rotating block 321, and the guide ring sleeve 323 is clamped on the surface of the assembly ring sleeve 322. By setting the guide assembly 32, the guide rotating block 321 can cooperate with the assembly ring sleeve 322 and the guide ring sleeve 323. The guide rotating block 321 provides support and limitation for the assembly ring sleeve 322, so that when the guide ring sleeve 323 is assembled on the assembly ring sleeve 322, it can rotate together with the axial rotation of the guide rotating block 321, thereby driving the conveying assembly 33 to rotate together, providing the required movement mode for the conveying assembly 33 to convey air.

[0038] The hopper 331 is fixed on the guide ring 323, and the hopper 332 is rotatably connected to the inner side of the hopper 331. The hopper 332 is provided on the surface of the hopper 332. The hopper 332 is fixed on the guide ring 323, and the hopper 332 is rotatably connected to the inner side of the hopper 331. The hopper 333 is provided on the surface of the hopper 332. The hopper 332 is supported and limited by the hopper 331, so that the hopper 332 can move along with the rotation of the hopper 331. The hopper 332 is guided by the hopper 333 to guide the hopper 36.

[0039] Among them, the limiting component 34 includes a limiting substrate 341, a limiting inner ring 342 and a limiting hole 343. The limiting substrate 341 is rotatably connected to the rear side of the guide rotating block 321, the limiting inner ring 342 is fixedly connected to the front side of the limiting substrate 341, and the limiting hole 343 is arranged at the top of the limiting inner ring 342. By setting the limiting component 34, the limiting substrate 341 can cooperate with the limiting inner ring 342 and the limiting hole 343, and the limiting inner ring 342 is supported and limited by the limiting substrate 341. The limiting substrate 341 can use the guide rotating block 321 as a support point to fix the orientation of the limiting inner ring 342 and the limiting hole 343 with the orientation of the guide rotating block 321, thereby increasing the stability of the limiting hole 343 when limiting the drainage component 36.

[0040] Among them, the assembly component 35 includes an assembly outer ring 351, an assembly block 352 and an assembly groove 353. The assembly outer ring 351 is fixedly connected to the surface of the limiting inner ring 342. The surface of the assembly outer ring 351 is clamped with the inner side of the positioning ring 232. The assembly block 352 is clamped on the top of the inner side of the assembly outer ring 351. The assembly groove 353 is provided at the top of the assembly block 352. By setting the assembly component 35, the assembly outer ring 351 can cooperate with the assembly block 352 and the assembly groove 353. By assembling the outer ring 351, the assembly block 352 is clamped. The support and limitation of the limiting inner ring 342 can keep the position of the assembly block 352 and the limiting inner ring 342 fixed, so that the assembly groove 353 on the assembly block 352 can be connected with the limiting hole 343, so that the assembly groove 353 and the limiting hole 343 can limit the drainage component 36 at the same time and increase the stability of the drainage component 36 when limiting. The assembly block 352 can be disassembled and assembled from the assembly outer ring 351 in a snap-fit ​​manner, and the drainage component 36 can be easily removed for maintenance and replacement by disassembling the assembly block 352.

[0041] Among them, the drainage component 36 includes an inlet pipe 361, a drainage hose 362 and a discharge pipe 363. The inlet pipe 361 is arranged on the inner side of the assembly groove 353, and the drainage hose 362 is connected to the bottom of the inlet pipe 361. The surface of the drainage hose 362 is in contact with the inner side of the limiting inner ring 342. The side of the drainage hose 362 away from the limiting inner ring 342 is in contact with the conveying wheel 332, and the discharge pipe 363 is connected to the side of the drainage hose 362 away from the inlet pipe 361. By setting the drainage component 36, the inlet pipe 361 can cooperate with the drainage hose 362 and the discharge pipe 363. Through the extrusion of the drainage hose 362 as the conveying wheel 332 circulates, the air at the inlet pipe 361 can be continuously transported to the discharge pipe 363, so that the air in the closing mechanism 2 can be transported to the pump body 1, so that a negative pressure is formed in the closing mechanism 2.

[0042] The working principle of this embodiment is as follows: First, the transmission sleeve 311 is installed on the inner side of the input end of the pump body 1. After the pump body 1 and the external pipeline are connected and sealed through the closing mechanism 2, when the external pipeline transports the fluid into the pump body 1, the transmission fan blade 312 will drive the transmission rotating rod 313 to rotate along the transmission sleeve 311 as the fluid flows, and drive the guide rotating block 321 to rotate the assembly sleeve 322 and the guide sleeve 323 together, and the conveying plate 331 will drive the conveying runner 332 along the drainage hose 362 along with the guide sleeve 323. When the conveying runner 332 moves, the gas in the drainage hose 362 will be continuously transported from the inlet pipe 361 to the discharge pipe 363, so that the inlet pipe 361 can discharge the air in the closing mechanism 2 from the discharge pipe 363 to the pump body 1, so that a negative pressure is formed in the closing mechanism 2 and the connection between the pump body 1 and the external pipeline is automatically sealed.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a vertical guide vane self-priming pump, comprising a pump body (1), a sealing mechanism (2) and a self-sealing mechanism (3), characterized in that: The sealing mechanism (2) is provided at the input end of the vertical guide vane self-priming pump (1), the self-sealing mechanism (3) is provided on the inner side of the sealing mechanism (2), the sealing mechanism (2) comprises an encryption component (21), a sealing component (22) and a positioning component (23), the encryption component (21) is sleeved on the surface of the input end of the pump body (1), the sealing component (22) is provided on the side of the encryption component (21) away from the pump body (1), the positioning component (23) is provided on the inner side of the sealing component (22), the self-sealing mechanism (3) comprises a transmission component (31), a guide vane self-priming pump ( ... self-sealing mechanism (3) and a self-sealing mechanism (3). The pump body (1) comprises a guide assembly (32), a conveying assembly (33), a position limiting assembly (34), an assembly assembly (35) and a drainage assembly (36), wherein the transmission assembly (31) is arranged on the inner side of the input end of the pump body (1), the guide assembly (32) is arranged on the front side of the transmission assembly (31), the conveying assembly (33) is arranged on the surface of the guide assembly (32), the position limiting assembly (34) is arranged on the rear side of the guide assembly (32), the assembly assembly (35) is arranged on the surface of the position limiting assembly (34), and the drainage assembly (36) is arranged on the inner side of the assembly assembly (35).

2. A sealing structure for a vertical guide vane self-priming pump according to claim 1, characterized in that: The encryption component (21) comprises an introduction sleeve (211), an annular airbag (212) and an extrusion sleeve (213); the introduction sleeve (211) is sleeved on the surface of the input end of the pump body (1); the annular airbag (212) is connected to a side of the introduction sleeve (211) away from the pump body (1); and the extrusion sleeve (213) is connected to a side of the annular airbag (212) away from the introduction sleeve (211).

3. A sealing structure for a vertical guide vane self-priming pump according to claim 2, characterized in that: The sealing assembly (22) comprises a sealing sleeve (221), a highly flexible sealing sleeve (222) and a drainage groove (223); the sealing sleeve (221) is connected to a side of the extrusion sleeve (213) away from the pump body (1); the highly flexible sealing sleeve (222) is connected to the inner side of the sealing sleeve (221); and the drainage groove (223) is provided on the inner side of the highly flexible sealing sleeve (222).

4. A sealing structure for a vertical guide vane self-priming pump according to claim 3, characterized in that: The positioning assembly (23) comprises a mounting ring (231), a positioning ring (232) and a positioning rod (233); the mounting ring (231) is arranged on the inner side of the high-flexibility sealed sleeve (222); the surface of the mounting ring (231) contacts the input end of the pump body (1); the positioning ring (232) is fixedly connected to the inner side of the mounting ring (231); and the positioning rod (233) is fixedly connected to the inner side of the positioning ring (232).

5. The sealing structure for a vertical guide vane self-priming pump according to claim 4, characterized in that: The transmission assembly (31) comprises a transmission ring sleeve (311), a transmission blade (312) and a transmission rotating rod (313); the transmission ring sleeve (311) is clamped on the inner side of the input end of the pump body (1); the transmission blade (312) is rotatably connected to the front side of the inner side of the transmission ring sleeve (311); the transmission rotating rod (313) is fixedly connected to the rear side of the transmission blade (312); and the surface of the transmission rotating rod (313) is rotatably connected to the inner side of the transmission ring sleeve (311).

6. The sealing structure for a vertical guide vane self-priming pump according to claim 5, characterized in that: The guide assembly (32) comprises a guide rotating block (321), an assembly ring sleeve (322), and a guide ring sleeve (323); the guide rotating block (321) is fixedly connected to the rear side of the transmission rotating rod (313); the assembly ring sleeve (322) is fixedly connected to the surface of the guide rotating block (321); and the guide ring sleeve (323) is clamped to the surface of the assembly ring sleeve (322).

7. The sealing structure for a vertical guide vane self-priming pump according to claim 6, characterized in that: The conveying assembly (33) comprises a conveying plate (331), a conveying wheel (332) and a drainage groove (333); the conveying plate (331) is fixedly connected to the surface of the guide ring sleeve (323); the conveying wheel (332) is rotatably connected to the inner side of the conveying plate (331); and the drainage groove (333) is provided on the surface of the conveying wheel (332).

8. The sealing structure for a vertical guide vane self-priming pump according to claim 7, characterized in that: The limiting assembly (34) comprises a limiting base plate (341), a limiting inner ring (342) and a limiting hole (343); the limiting base plate (341) is rotatably connected to the rear side of the guide rotating block (321); the limiting inner ring (342) is fixedly connected to the front side of the limiting base plate (341); and the limiting hole (343) is provided at the top of the limiting inner ring (342).

9. The sealing structure for a vertical guide vane self-priming pump according to claim 8, characterized in that: The assembly component (35) comprises an assembly outer ring (351), an assembly block (352) and an assembly groove (353); the assembly outer ring (351) is fixedly connected to the surface of the limiting inner ring (342); the surface of the assembly outer ring (351) is clamped to the inner side of the positioning ring (232); the assembly block (352) is clamped to the top of the inner side of the assembly outer ring (351); and the assembly groove (353) is provided at the top of the assembly block (352).

10. The sealing structure for a vertical guide vane self-priming pump according to claim 9, characterized in that: The drainage assembly (36) comprises an inlet pipe (361), a drainage hose (362) and a discharge pipe (363). The inlet pipe (361) is arranged on the inner side of the assembly groove (353). The drainage hose (362) is connected to the bottom of the inlet pipe (361). The surface of the drainage hose (362) contacts the inner side of the limiting inner ring (342). The side of the drainage hose (362) away from the limiting inner ring (342) contacts the conveying wheel (332). The discharge pipe (363) is connected to the side of the drainage hose (362) away from the inlet pipe (361).

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