CN117803609B - Self-priming centrifugal pump - Google Patents
Self-priming centrifugal pump Download PDFInfo
- Publication number
- CN117803609B CN117803609B CN202410208034.3A CN202410208034A CN117803609B CN 117803609 B CN117803609 B CN 117803609B CN 202410208034 A CN202410208034 A CN 202410208034A CN 117803609 B CN117803609 B CN 117803609B
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- Prior art keywords
- rotating shaft
- plug
- self
- centrifugal pump
- priming centrifugal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention relates to the technical field of centrifugal pumps, and particularly discloses a self-priming centrifugal pump, which comprises: the positioning shell is provided with a first socket, the inserting part is provided with a second socket, the positioning shell is rotationally connected to the inner side of the communicating pipe, the inserting part is connected to the inner side of the connecting part, the inserting part can be inserted into the positioning shell so as to align the first socket with the second socket, the rotating shaft is rotationally connected to the inner side of the connecting part, the outer side of the rotating shaft is connected with a blade and a locking part, the blade can be pushed when water in the connecting part flows, so that the blade drives the rotating shaft to rotate, the rotating shaft can drive the locking part to rotate, the locking part penetrates through the first socket and the second socket, and a first elastic part is connected between the rotating shaft and the locking part; the self-priming centrifugal pump of the invention pushes the moving blade by the flowing force of water so that the locking part penetrates through the positioning shell and the inserting part, thereby locking the connecting part and the communicating pipe.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a self-priming centrifugal pump.
Background
The self-priming centrifugal pump uses the impeller to rotate at high speed to make the water in the impeller channel flow to the volute, at this moment, the inlet forms vacuum to open the water inlet check valve, the air in the suction pipe enters the pump and reaches the outer edge through the impeller channel, and the liquid can flow out from the water outlet through the drainage function of the impeller surface blades.
The utility model discloses a horizontal self-priming centrifugal pump in chinese patent document of publication No. CN115750382B, including base and motor, the motor is installed in the top of base, the output shaft position installation water storage tank of motor, the internally mounted of water storage tank has the impeller, through setting up disc frame, closing plate and sealing disc, the output shaft of motor indirectly drives the closing plate and rotates, the closing plate is in the in-process that breaks away from blank region, make outside hydroenergy enter into the inside of water storage tank, when stopping rotating, centrifugal force disappears, under resilient mounting's effort, the closing plate recloses, just can store certain water with the inside of water storage tank, do not need to carry out extra water filling, however, self-priming centrifugal pump is in the in-process of using, the vibration appears because of bubble or liquid flow's in the liquid change easily, so that the junction of self-priming centrifugal pump's water inlet end and inlet tube, water outlet end and outlet pipe appear not hard up, thereby appear the phenomenon that liquid leaks.
Disclosure of Invention
The invention provides a self-priming centrifugal pump, which aims to solve the problem that liquid leakage occurs due to looseness at the joint of a water inlet end and a water inlet pipe and the joint of a water outlet end and a water outlet pipe of the self-priming centrifugal pump caused by vibration of the self-priming centrifugal pump in the related art.
The self-priming centrifugal pump of the invention comprises: the pump body is used for conveying liquid, two connecting parts are connected to the pump body, and communicating pipes are connected to the two connecting parts; the locking mechanism is connected between the connecting portion and the communicating pipe, the locking mechanism comprises a rotating shaft, a positioning shell and an inserting portion, a first inserting opening is formed in the positioning shell, a second inserting opening is formed in the inserting portion, the positioning shell is rotationally connected to the inner side of the communicating pipe, the inserting portion is connected to the inner side of the connecting portion, after the connecting portion is connected with the communicating pipe, the inserting portion can be inserted into the positioning shell so that the first inserting opening and the second inserting opening are aligned, the rotating shaft is rotationally connected to the inner side of the connecting portion, a blade and a locking portion are connected to the outer side of the rotating shaft, the blade can be pushed when water in the connecting portion flows, so that the blade drives the rotating shaft to rotate, the rotating shaft can drive the locking portion to rotate, the locking portion penetrates through the first inserting opening and the second inserting opening, a first elastic portion is connected between the rotating shaft and the locking portion, and the first elastic portion can drive the rotating shaft to reset.
Preferably, the first socket and the second socket after alignment are located on a rotation track of the locking portion.
Preferably, the inner side of the communicating pipe is rotatably connected with a rotating ring, and the positioning shell is connected to the rotating ring.
Preferably, the opening of the positioning shell is flaring, and an inclined plane is arranged in the opening.
Preferably, the rotating shaft is connected with a movable part, the movable part penetrates through the plug-in part and is movably connected with the plug-in part, and the first elastic part is connected between the movable part and the plug-in part.
Preferably, the rotating shaft is rotatably connected with a mounting part, and the mounting part is connected in the connecting part.
Preferably, a unidirectional driving mechanism is connected between the rotating shaft and the blades, so that the pump body is closed, and the rotating shaft does not drive the blades to reset when reset.
Preferably, the unidirectional driving mechanism comprises an annular shell connected to the rotating shaft, an annular groove is formed in the outer peripheral surface of the annular shell, a sealing portion is rotatably connected to the outer side of the annular shell, the sealing portion can seal the annular groove in the outer side of the annular shell, the blades are connected to the outer peripheral surface of the sealing portion, an abutting portion is movably connected to the inner wall of the annular groove, one end of the abutting portion extends out of the annular shell and is connected with a pushing portion, a rotating portion is connected to the inner side of the sealing portion, and the rotating portion is located the inner side of the annular groove.
Preferably, the contact portion may be in close contact with the rotating portion, and the surfaces of the rotating portion in contact with the contact portion are rough surfaces.
Preferably, a bolt and a nut are connected between the connecting part and the communicating pipe, and the two connecting parts are respectively connected at the water inlet end and the water outlet end of the pump body.
The beneficial effects of the invention are as follows:
When in use, the blade is pushed by the flowing force of water so that the blade drives the rotating shaft to rotate, and the rotating shaft drives the locking part to penetrate through the positioning shell and the inserting part when rotating, and the positioning shell is connected to the inner side of the communicating pipe through the rotating ring, and the inserting part is connected to the inner side of the connecting part, so that the connecting part and the communicating pipe can be locked, gaps are formed in the connecting part of the connecting part and the communicating pipe after the bolt and the nut are loosened due to vibration of the pump body, and liquid leakage is avoided in the connecting part of the connecting part and the communicating pipe.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a partial perspective structure of the present invention.
Fig. 3 is a schematic cross-sectional perspective view of the connection part and the communication pipe of the present invention.
Fig. 4 is a schematic perspective view of the locking mechanism of the present invention.
Fig. 5 is another perspective view of the locking mechanism of the present invention.
Fig. 6 is a schematic perspective view of the drive assembly and locking assembly of the present invention.
Fig. 7 is a schematic perspective view of the positioning shell and the plug part of the present invention.
Fig. 8 is a schematic cross-sectional perspective view of the unidirectional driving mechanism of the present invention.
Reference numerals:
1. A pump body; 11. a connection part; 12. a communicating pipe; 13. a bolt; 14. a nut; 2. a locking mechanism; 21. a drive assembly; 211. a mounting part; 212. a rotating shaft; 213. a blade; 22. a locking assembly; 221. a rotating ring; 222. positioning a shell; 2221. a first socket; 2222. an inclined plane; 2223. a first arcuate surface; 223. a plug-in part; 2231. a second socket; 2232. a second arcuate surface; 224. a movable part; 225. a first elastic portion; 226. a locking part; 3. a unidirectional driving mechanism; 31. an annular housing; 32. a sealing part; 33. a rotating part; 34. an abutting portion; 35. a pushing part; 36. and a second elastic part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 8, the self-priming centrifugal pump of the invention comprises a pump body 1 for conveying liquid, wherein a locking mechanism 2 is connected to the pump body 1 for locking a water pipe on the pump body 1, so as to prevent the pump body 1 from leaking.
As shown in fig. 1 and 2, the pump body 1 is provided with two connecting parts 11, the two connecting parts 11 are respectively connected at the water inlet end and the water outlet end of the pump body 1, the two connecting parts 11 are connected with communicating pipes 12, wherein the communicating pipes 12 connected with the connecting parts 11 at the water inlet end of the pump body 1 are water inlet pipes, the communicating pipes 12 connected with the connecting parts 11 at the water outlet end of the pump body 1 are water outlet pipes, bolts 13 and nuts 14 are connected between the connecting parts 11 and the communicating pipes 12, the communicating pipes 12 can be fixed on the connecting parts 11 through the bolts 13 and the nuts 14, the pump body 1 is started, and liquid can enter the pump body 1 through the connecting parts 11 and the communicating pipes 12 at the water inlet end of the pump body 1 and be discharged outwards through the connecting parts 11 and the communicating pipes 12 at the water outlet end of the pump body 1.
As shown in fig. 3 to 7, the locking mechanism 2 comprises a driving assembly 21 and a locking assembly 22, the driving assembly 21 is connected in the connecting portion 11, the locking assembly 22 is connected between the connecting portion 11 and the communicating pipe 12, and liquid can push the driving assembly 21 to operate when passing through the connecting portion 11, so that the driving assembly 21 drives the locking assembly 22, thereby locking between the connecting portion 11 and the communicating pipe 12, preventing a gap from being formed at the connecting portion of the connecting portion 11 and the communicating pipe 12 after the bolt 13 and the nut 14 are loosened due to vibration of the pump body 1, and preventing liquid leakage at the connecting portion of the connecting portion 11 and the communicating pipe 12.
With continued reference to fig. 3 to 7, the driving assembly 21 includes a mounting portion 211 connected to the inside of the connection portion 11, a rotating shaft 212 is rotatably connected to the mounting portion 211, a blade 213 is connected to the rotating shaft 212, when the liquid passes through the connection portion 11, the blade 213 is pushed by the liquid to drive the rotating shaft 212 to rotate, the locking assembly 22 includes a rotating ring 221 rotatably connected to the inside of the connection portion 12, and a plug portion 223 connected to the inside of the connection portion 11, a positioning shell 222 is connected to the inside of the rotating ring 221, the plug portion 223 is inserted into the inside of the positioning shell 222, the width of the plug portion 223 is far smaller than the width of the positioning shell 222, the opening of the positioning shell 222 is in a flared shape, two oppositely arranged inclined surfaces 2222 are arranged in the opening, and two oppositely arranged two first arc surfaces 2223 are arranged in the opening, two second arc surfaces 2232 are arranged on the plug portion 223, after the plug portion 223 is inserted into the positioning shell 222, the two second arc surfaces 2232 are respectively contacted with the two first arc surfaces 2223, a second plug portion 223 is arranged on the plug portion 223, a positioning shell 222 is connected to the inside of the positioning shell 222, the first plug portion 223 is inserted into the positioning shell 223, the opening 223 is aligned with the second plug portion 222, and the second plug portion 223 is positioned to the second plug portion 222, and the plug portion 223 is positioned to be positioned to the inside the opposite to the plug portion 222, and the first plug portion 223 is positioned to be positioned to the opposite to the plug portion 222.
With continued reference to fig. 3 to 7, the driving assembly 21 further includes a movable portion 224 and a locking portion 226 connected to the rotating shaft 212, the locking portion 226 has an arc section, the aligned first jack 2221 and second jack 2231 are located on a rotation track of the arc section on the locking portion 226, the movable portion 224 penetrates through the plug portion 223 and is movably connected with the plug portion 223, a first elastic portion 225 is connected between the movable portion 224 and the plug portion 223, the first elastic portion 225 is a spring for driving the movable portion 224 to reset, the second jack 2231 on the plug portion 223 is located on the rotation track of the locking portion 226, when the rotating shaft 212 rotates, the locking portion 226 and the movable portion 224 can be driven to move in an arc direction towards the plug portion 223, so that the movable portion 224 stretches the first elastic portion 225, the arc section on the locking portion 226 penetrates through the first jack 2221 and the second jack 2231, thereby locking the plug portion 223 and the positioning shell 222, and a gap occurring at a connection position of the connection portion 11 and the communication tube 12 after the bolt 13 and the nut 14 are loosened due to vibration of the pump body 1 is avoided, and accordingly liquid leakage at the connection position of the connection portion 11 and 12 is avoided.
As shown in fig. 4, 6 and 8, a unidirectional driving mechanism 3 is connected between a rotating shaft 212 and a vane 213, so that after the pump body 1 is closed, the vane 213 is not driven to reset when the rotating shaft 212 resets, the unidirectional driving mechanism 3 comprises an annular shell 31 connected to the rotating shaft 212, an annular groove is arranged on the outer peripheral surface of the annular shell 31, a sealing part 32 is rotatably connected to the outer side of the annular shell 31, the sealing part 32 is in an annular shape, the sealing part 32 can seal the annular groove on the outer side of the annular shell 31, the vane 213 is connected to the outer peripheral surface of the sealing part 32, an abutting part 34 is movably connected to the inner wall of the annular groove, one end of the abutting part 34 extends out of the annular shell 31 and is connected with a pushing part 35, a rotating part 33 is connected to the inner side of the sealing part 32, the rotating part 33 is positioned at the inner side of the annular groove, and the rotating part 33 is not contacted with the inner wall of the annular groove, the pushing part 35 is pushed by the flowing force of water to enable the pushing part 35 to drive the abutting part 34 to move until the abutting part 34 is in close contact with the rotating part 33, then the moving blade 213 is pushed by the flowing force of water to drive the sealing part 32 and the rotating part 33 to rotate, at the moment, the abutting part 34 can be driven to rotate when the rotating part 33 rotates due to the close contact of the abutting part 34 with the rotating part 33, the annular shell 31 is pushed by the abutting part 34 to drive the rotating shaft 212 to rotate, the contact surface of the rotating part 33 and the abutting part 34 is a rough surface to increase the friction force of the rotating part 33 and the abutting part 34 after the contact, the pushing part 35 is in a flaring shape to enhance the pushing effect of water flow on the pushing part 35, and a second elastic part 36 is connected between the abutting part 34 and the annular shell 31 and is a spring for driving the abutting part 34 to reset.
After the pump body 1 stops running, the pushing force of the flowing force of water to the pushing part 35 is reduced, at this time, the abutting part 34 and the pushing part 35 are driven by the second elastic part 36 to reset, after the abutting part 34 is separated from the rotating part 33, the first elastic part 225 drives the rotating shaft 212 to reset, and the rotating shaft 212 drives the locking part 226 to be separated from the positioning shell 222 and the inserting part 223, at this time, the resetting of the rotating shaft 212 does not drive the blade 213 to reset any more, so that the resistance of the water when the rotating shaft 212 is reset is reduced, the unlocking speed of the locking assembly 22 is accelerated, and the dismounting speed of the connecting part 11 and the communicating pipe 12 is accelerated.
When in use, two communicating pipes 12 are respectively connected to two connecting parts 11 of the water inlet end and the water outlet end of the pump body 1 through bolts 13 and nuts 14, in the installation process, after the plug-in part 223 is contacted with the inclined surface 2222 at the opening of the positioning shell 222, the plug-in part continues to move towards the inner side of the positioning shell 222, the positioning shell 222 can be pushed to rotate the rotating ring 221 until the second socket 2231 on the plug-in part 223 is aligned with the first socket 2221 on the positioning shell 222, the pump body 1 is started, water is sucked into the pump body 1 through the communicating pipe 12 and the connecting part 11 on the water inlet end of the pump body 1, and the water is discharged through the communicating pipe 12 and the connecting part 11 on the water outlet end of the pump body 1.
When water enters the connecting part 11, pushing force is applied to the pushing part 35 by the flowing force of the water, so that the pushing part 35 drives the abutting part 34 to move until the abutting part 34 is in close contact with the rotating part 33, then the moving blade 213 is pushed by the flowing force of the water, so that the sealing part 32 and the rotating part 33 are driven to rotate, at the moment, the abutting part 34 can be driven to rotate when the rotating part 33 rotates due to the close contact between the abutting part 34 and the rotating part 33, and the annular shell 31 is pushed by the abutting part 34, so that the rotating shaft 212 is driven to rotate.
When the rotating shaft 212 rotates, the locking portion 226 and the movable portion 224 are driven to move in an arc manner towards the direction of the inserting portion 223, so that the movable portion 224 stretches the first elastic portion 225, and an arc-shaped section on the locking portion 226 penetrates through the first inserting opening 2221 and the second inserting opening 2231, so that the inserting portion 223 and the positioning shell 222 are locked.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A self-priming centrifugal pump, comprising:
the pump body (1) is used for conveying liquid, two connecting parts (11) are connected to the pump body (1), and communicating pipes (12) are connected to the two connecting parts (11);
The locking mechanism (2) is connected between the connecting part (11) and the communicating pipe (12), the locking mechanism (2) comprises a rotating shaft (212), a positioning shell (222) and a plug-in part (223), a first plug-in opening (2221) is arranged on the positioning shell (222), a second plug-in opening (2231) is arranged on the plug-in part (223), the positioning shell (222) is rotationally connected to the inner side of the communicating pipe (12), the plug-in part (223) is connected to the inner side of the connecting part (11), after the connecting part (11) is connected with the communicating pipe (12), the plug-in part (223) can be inserted into the positioning shell (222) so that the first plug-in opening (2221) and the second plug-in opening (2231) are aligned, the rotating shaft (212) is rotationally connected to the inner side of the connecting part (11), a blade (213) and a locking part (226) are connected to the outer side of the rotating shaft (212), when water in the connecting part (11) flows, the blade (213) can be pushed to the inner side of the communicating pipe, the blade (226) can be driven by the blade (213) to rotate the second plug-in opening (2231), a first elastic part (225) is connected between the rotating shaft (212) and the locking part (226), and the first elastic part (225) can drive the rotating shaft (212) to reset.
2. Self-priming centrifugal pump according to claim 1, wherein the first socket (2221) and the second socket (2231) after alignment are both located on the rotational trajectory of the locking part (226).
3. The self-priming centrifugal pump according to claim 1, wherein a rotating ring (221) is rotatably connected to the inside of the communicating tube (12), and the positioning housing (222) is connected to the rotating ring (221).
4. The self-priming centrifugal pump of claim 1, wherein the opening of the positioning shell (222) is flared, and an inclined surface (2222) is provided in the opening.
5. The self-priming centrifugal pump according to claim 1, wherein a movable portion (224) is connected to the shaft (212), the movable portion (224) penetrates through the plug portion (223) and is movably connected thereto, and the first elastic portion (225) is connected between the movable portion (224) and the plug portion (223).
6. Self-priming centrifugal pump according to claim 1, characterized in that the shaft (212) is rotatably connected with a mounting part (211), which mounting part (211) is connected in the connecting part (11).
7. Self-priming centrifugal pump according to claim 1, characterized in that a unidirectional driving mechanism (3) is connected between the rotating shaft (212) and the blades (213), so that after the pump body (1) is closed, the rotating shaft (212) does not drive the blades (213) to reset when reset.
8. The self-priming centrifugal pump according to claim 7, wherein the unidirectional driving mechanism (3) comprises an annular housing (31) connected to the rotating shaft (212), an annular groove is formed in the outer circumferential surface of the annular housing (31), a sealing portion (32) is rotatably connected to the outer side of the annular housing (31), the sealing portion (32) can seal the annular groove in the outer side of the annular housing (31), the blades (213) are connected to the outer circumferential surface of the sealing portion (32), an abutting portion (34) is movably connected to the inner wall of the annular groove, one end of the abutting portion (34) extends out of the annular housing (31) and is connected to a pushing portion (35), a rotating portion (33) is connected to the inner side of the sealing portion (32), and the rotating portion (33) is located inside the annular groove.
9. Self-priming centrifugal pump according to claim 8, characterized in that the abutment (34) can be brought into close contact with the turning part (33), and that the surfaces of the turning part (33) in contact with the abutment (34) are roughened surfaces.
10. Self-priming centrifugal pump according to any one of claims 1-9, characterized in that a bolt (13) and a nut (14) are connected between the connection part (11) and the communication pipe (12), both connection parts (11) being connected at the water inlet end and the water outlet end of the pump body (1), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410208034.3A CN117803609B (en) | 2024-02-26 | 2024-02-26 | Self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410208034.3A CN117803609B (en) | 2024-02-26 | 2024-02-26 | Self-priming centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117803609A CN117803609A (en) | 2024-04-02 |
| CN117803609B true CN117803609B (en) | 2024-05-03 |
Family
ID=90434778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410208034.3A Active CN117803609B (en) | 2024-02-26 | 2024-02-26 | Self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117803609B (en) |
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| WO2019061617A1 (en) * | 2017-09-29 | 2019-04-04 | 西南石油大学 | Negative pressure pulse oscillator |
| CN110360154A (en) * | 2019-08-09 | 2019-10-22 | 浙江绿美泵业有限公司 | A kind of immersible pump |
| CN209621647U (en) * | 2019-03-12 | 2019-11-12 | 中国地质调查局油气资源调查中心 | A kind of water-vapor interface methane and carbon dioxide on-line monitoring installation water pump |
| CN212909594U (en) * | 2020-09-16 | 2021-04-06 | 贵州乌江水电开发有限责任公司索风营发电厂 | ONCALL early warning system of hydraulic power plant |
| JP3235147U (en) * | 2021-07-16 | 2021-12-02 | リーダーソン ライティング カンパニー リミテッドLeedarson Lighting Co., Ltd. | Inversion fall prevention fan |
| CN215171048U (en) * | 2021-02-03 | 2021-12-14 | 江苏绩优机电科技有限公司 | Pump case structure |
| CN216041610U (en) * | 2021-09-07 | 2022-03-15 | 安徽鼎顺建筑工程有限公司 | Sewage drainage pipe for municipal works |
| CN217926461U (en) * | 2022-08-02 | 2022-11-29 | 余杰 | Compensation mounting structure for centrifugal pump |
| CN219035147U (en) * | 2022-10-18 | 2023-05-16 | 浙江锦超特种装备有限公司 | Water pump with filtering structure |
-
2024
- 2024-02-26 CN CN202410208034.3A patent/CN117803609B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980028779A (en) * | 1996-10-24 | 1998-07-15 | 박병재 | Double Cylindrical Cam Vacuum Pump |
| CN201152287Y (en) * | 2008-01-10 | 2008-11-19 | 武汉特种工业泵厂有限公司 | Large-sized vertical pump mounting and adjusting device |
| WO2019061617A1 (en) * | 2017-09-29 | 2019-04-04 | 西南石油大学 | Negative pressure pulse oscillator |
| CN209621647U (en) * | 2019-03-12 | 2019-11-12 | 中国地质调查局油气资源调查中心 | A kind of water-vapor interface methane and carbon dioxide on-line monitoring installation water pump |
| CN110360154A (en) * | 2019-08-09 | 2019-10-22 | 浙江绿美泵业有限公司 | A kind of immersible pump |
| CN212909594U (en) * | 2020-09-16 | 2021-04-06 | 贵州乌江水电开发有限责任公司索风营发电厂 | ONCALL early warning system of hydraulic power plant |
| CN215171048U (en) * | 2021-02-03 | 2021-12-14 | 江苏绩优机电科技有限公司 | Pump case structure |
| JP3235147U (en) * | 2021-07-16 | 2021-12-02 | リーダーソン ライティング カンパニー リミテッドLeedarson Lighting Co., Ltd. | Inversion fall prevention fan |
| CN216041610U (en) * | 2021-09-07 | 2022-03-15 | 安徽鼎顺建筑工程有限公司 | Sewage drainage pipe for municipal works |
| CN217926461U (en) * | 2022-08-02 | 2022-11-29 | 余杰 | Compensation mounting structure for centrifugal pump |
| CN219035147U (en) * | 2022-10-18 | 2023-05-16 | 浙江锦超特种装备有限公司 | Water pump with filtering structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117803609A (en) | 2024-04-02 |
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