CN108980025B - Water pump performance comprehensive test board - Google Patents
Water pump performance comprehensive test board Download PDFInfo
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- CN108980025B CN108980025B CN201810785221.2A CN201810785221A CN108980025B CN 108980025 B CN108980025 B CN 108980025B CN 201810785221 A CN201810785221 A CN 201810785221A CN 108980025 B CN108980025 B CN 108980025B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 364
- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 35
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a comprehensive test board for water pump performance, which relates to detection equipment, and the technical scheme is as follows: the water inlet pipe is communicated with the water inlet pipe for conveying water to the water pump, the water inlet valve is arranged on the water inlet pipe, and the test main pipe comprises a water outlet end for discharging water from the water supply pump and a water return end communicated with the water tank; the first valve and the second valve are used for separating the test main pipe into a first pipe, a second pipe and a third pipe, wherein the first pipe and the second pipe are close to the water outlet end, and the third pipe is close to the water return end; the first pipe is communicated with an external air source and a pressure meter I, the second pipe is communicated with a pressure meter II, and the third pipe is communicated with a flowmeter. After the water pump performance comprehensive test board is installed once, the flow, the lift and the sealing performance can be tested at one time, the test board does not need to be replaced, and the detection efficiency is high; through setting up water delivery device and amplification mechanism, can ensure low level water tank's liquid level uniformity, and test accuracy is high.
Description
Technical Field
The invention relates to detection equipment, in particular to a comprehensive test board for water pump performance.
Background
Water pumps are machines that transport or pressurize liquids, and are widely used in industry, agriculture, and daily life. The water pump comprises a water suction port and a discharge port, and is generally driven to work by an internally arranged motor. In the production and manufacture of water pumps, the performance of the water pump needs to be tested by sampling.
The Chinese patent application with the publication number of CN102748276A discloses a water pump tightness test board, which comprises a bench, wherein a tool lower die plate and a tool upper die plate are arranged on the bench, a sealing pad for sealing one end of a water pump and a vent hole for communicating the other end of the water pump are arranged on the tool lower die plate, a tool pressing rod is arranged on the tool upper die plate, and an air pump communicated with the vent hole is arranged at the lower part of the bench. The test bench adopts gas as a detection medium, and the leak quantity of the gas is detected to test the tightness of the water pump.
However, the test bench can only detect the sealing performance of the water pump and has single function; the water pump also has performance indexes such as flow, lift and the like, and the corresponding test bench needs to be replaced frequently during testing, so that the detection efficiency is low.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the comprehensive test board for the performance of the water pump, which has higher detection efficiency.
The technical aim of the invention is realized by the following technical scheme: the comprehensive test bench for the performance of the water pump comprises a workbench, a water tank and a test main pipe, wherein the water tank is communicated with a water inlet pipe for conveying water to the water pump, the water inlet pipe is provided with a water inlet valve, and the test main pipe comprises a water outlet end for discharging water from a water supply pump and a water return end communicated with the water tank; the test main pipe is provided with a first valve and a second valve for controlling the on-off of the test main pipe, and the first valve and the second valve divide the test main pipe into a first pipe, a second pipe and a third pipe, wherein the first pipe, the second pipe and the third pipe are close to the water outlet end and the water return end; the first pipe is communicated with an external air source and a first pressure gauge, the second pipe is communicated with a second pressure gauge, and the third pipe is communicated with a flowmeter.
Through the technical scheme, before testing, the water inlet valve is closed, the water suction port of the water pump is communicated with the water inlet pipe, the water outlet port of the water pump is communicated with the water outlet end, and finally the water pump is connected with a power supply to finish installation. When the flow is tested, the water inlet valve, the first valve and the second valve are opened, then the power supply of the water pump to be tested is started, the water pump starts to operate, the water in the water tank is pumped back into the water tank by the water pump through the test main pipe, the water generates readings when flowing through the flowmeter of the flow meter, and personnel judge whether the flow parameters of the water pump reach the standards according to the readings; when the lift is tested, the second valve is closed, so that water in the test main pipe cannot be discharged, water pressure is built in the first pipe and the second pipe, the second pressure meter generates readings, and whether the lift parameter of the water pump reaches the standard can be judged according to the readings of the second pressure meter because the pressure and the lift have a corresponding relation; when the tightness is tested, the first valve, the water inlet valve and the water pump power supply are closed, then an external air source is conducted, compressed air enters the first pipe to build pressure for pressure maintaining test, whether leakage occurs on the water pump or not is observed, meanwhile, whether the reading of the first pressure gauge is reduced or not in a certain time is observed, and accordingly whether the tightness of the water pump meets the standard is judged. In sum, after the water pump is installed once, the test bench can complete the test of flow, lift and sealing performance at one time, the test bench does not need to be replaced, and the detection efficiency is higher.
Preferably, the first tube comprises a tube segment.
Through the technical scheme, during installation, the hose section capable of being freely bent facilitates installation of the water outlet end on the water pump by workers.
Preferably, the first pipe is communicated with an air pipe which is communicated with an external air source, the air pipe is communicated with an electromagnetic valve and a one-way valve, and the one-way conduction direction of the one-way valve is the direction of the air pipe flowing to the first pipe.
Through the technical scheme, when the tightness is tested, the electromagnetic valve is opened, compressed air is communicated with the first pipe through the air pipe, and the pressure is built in the first pipe and the water pump; the one-way valve is used for preventing water from flowing back into the air pipe.
Preferably, the water tank comprises a low-level water tank communicated with the water inlet pipe and a high-level water tank communicated with the water return end; and a water delivery device for delivering water from the high-level water tank to the low-level water tank.
Through the technical scheme, the height of the low-level water tank is low, and the water delivery device is used for delivering water from the high-level water tank to the low-level water tank, so that the liquid level height of the low-level water tank is ensured to be constant; the liquid level of the low-level water tank can be set to be similar to the height of the water inlet pipe, so that the water pressure of the water inlet of the water pump is close to zero, and the accuracy of the water pump lift and flow parameter test is ensured.
Preferably, the high-level water tank is provided with a water delivery port, and the water delivery port is positioned above the low-level water tank; the water delivery device comprises a floating plate floating on the liquid level of the low-level water tank, a blocking piece positioned at the water delivery port and a connecting rod connecting the floating plate and the blocking piece, wherein the height of the water delivery device changes along with the liquid level of the low-level water tank, and the blocking piece can switch two states of closing the water delivery port and opening the water delivery port.
Through the technical scheme, when the liquid level of the low-level water tank is lowered, the heights of the floating plate and the connecting rod are lowered, and the connecting rod drives the blocking piece to slide to open the water delivery port, so that water in the high-level water tank flows into the low-level water tank through the water delivery port; when the liquid level of the low-level water tank rises, the heights of the floating plate and the connecting rod rise along with the rise of the liquid level, and the blocking piece moves reversely to gradually close the water delivery port. In conclusion, the water delivery port can be opened and closed in a self-adaptive mode according to the liquid level height of the low-level water tank, so that the liquid level height of the low-level water tank is ensured to be constant, an electric or pneumatic driving source is not required for the action of the water delivery device, and automatic adjustment can be realized.
Preferably, an amplifying mechanism is arranged between the blocking piece and the connecting rod, the amplifying mechanism comprises a first gear and a second gear which are rotatably arranged on the high-level water tank, and the diameter of the first gear is smaller than that of the second gear and the first gear and the second gear are coaxially fixed; the connecting rod is provided with a first rack meshed with the first gear, the blocking piece is arranged on the high-level water tank in a sliding mode, and the blocking piece is provided with a second rack meshed with the second gear.
Through the technical scheme, when the liquid level of the low-level water tank is lowered, the heights of the floating plate and the connecting rod are lowered, so that the first rack moves downwards and drives the first gear to rotate, and the first gear drives the second rack to move through the rotating shaft and the second gear, so that the blocking piece is driven to open the water delivery port; because the diameter of the first gear is smaller than that of the second gear, the movement amplitude of the second gear is larger than that of the first gear, and when the floating plate moves up and down for a small distance, the displacement can be amplified through the amplifying mechanism and acts on the blocking piece, so that the response of the water delivery device is quicker, and the liquid level of the low-level water tank can keep higher consistency.
Preferably, the water delivery port is connected with a water delivery pipe, the blocking piece is positioned between the water delivery port and the water delivery pipe, and the water delivery pipe extends into the low-level water tank.
Through above-mentioned technical scheme, because water gets into low level water tank through the raceway, then compare with the water delivery mode of direct outer watering, the kickboard is difficult for producing to rock.
Preferably, a positioning seat for placing the water pump is arranged on the workbench, a positioning groove for sliding the water supply pump is formed in the positioning seat, and the water pump can enable the water suction port to be communicated with the water inlet pipe through sliding.
Through the technical scheme, when the water pump is installed, the water pump can slide on the positioning groove to be close to or far away from the water inlet pipe; when the water pump moves to the limit in the direction of the water inlet pipe, the water inlet pipe is just inserted into the water suction port of the water pump to complete conduction, so that the water pump is more convenient.
Preferably, the first pipe is fixed with the balancing weight at the water outlet end.
Through above-mentioned technical scheme, after the water pump installation, the weight of balancing weight presses on the water pump through the play water end, can improve the connection steadiness of play water end and water pump to a certain extent.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. After the water pump is installed for one time, the test table can finish the test of flow, lift and sealing performance at one time, the test table does not need to be replaced, and the detection efficiency is high;
2. By arranging the hose section, a worker can conveniently install the water outlet end on the water pump;
3. the water delivery device is arranged, so that the consistency of the liquid level of the low-level water tank can be ensured;
4. By arranging the amplifying mechanism, the response speed of the action of the water delivery device is improved.
Drawings
FIG. 1 is a perspective view of a water pump performance integrated test stand of an embodiment, mainly highlighting the external structure of the test stand;
FIG. 2 is an internal view of the test stand, mainly highlighting the construction of the water tank and the water delivery device;
FIG. 3 is a partial view of a water delivery device in an embodiment, mainly highlighting the structure of the water delivery device and water delivery port;
fig. 4 is an enlarged view at a of fig. 2, mainly highlighting the structure of the amplifying mechanism;
fig. 5 is a partial view of the water pump performance comprehensive test bench, mainly highlighting the structure of the test header pipe.
Reference numerals: 1. a work table; 2. testing a main pipe; 11. a housing; 3. a water tank; 4. a water inlet pipe; 211. a water outlet end; 231. a water return end; 12. a positioning seat; 121. a positioning groove; 31. a low level water tank; 32. a high level water tank; 5. a water delivery device; 51. a blocking piece; 52. a floating plate; 53. a connecting rod; 111. a limit rod; 321. a water delivery port; 322. a water pipe; 61. a first gear; 62. a second gear; 531. a first rack; 511. a second rack; 41. a water inlet valve; 24. a first valve; 25. a second valve; 21. a first tube; 22. a second tube; 23. a third tube; 212. a hose section; 213. balancing weight; 7. an air pipe; 214. a first pressure gauge; 71. an electromagnetic valve; 72. a one-way valve; 221. a second pressure gauge; 231. a flow meter.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
As shown in fig. 1 and 2, the comprehensive test bench for the performance of the water pump comprises a workbench 1, a test main pipe 2, a housing 11 and a water tank 3 positioned in the housing 11, wherein a water inlet pipe 4 for conveying water to the water pump is communicated with the water tank 3, and the test main pipe 2 comprises a water outlet end 211 for discharging water from the water supply pump and a water return end 231 communicated with the water tank 3. The backwater end 231 is located above the water inlet pipe 4, and the number of the test header 2 and the water inlet pipe 4 is three to form three stations.
The workbench 1 is fixedly provided with positioning seats 12 for placing water pumps, and the number of the positioning seats 12 is three and corresponds to the water inlet pipes 4 one by one. The positioning seat 12 is provided with a positioning groove 121 for sliding a water supply pump, the length direction of the positioning groove 121 faces the water inlet pipe 4, the shape of the positioning groove 121 is matched with the shape of the side wall of the water pump, and the water pump can slide on the positioning groove 121 to be close to or far away from the water inlet pipe 4; when the water pump moves to the limit position in the direction of the water inlet pipe 4, the water inlet pipe 4 is just inserted into the water suction port of the water pump to complete conduction.
The water tank 3 comprises a low-level water tank 31 communicated with the water inlet pipe 4 and a high-level water tank 32 communicated with the water return end 231, wherein the high-level water tank 32 is positioned above the low-level water tank 31, and a water delivery device 5 is arranged between the high-level water tank 32 and the low-level water tank 31. The water delivery device 5 comprises a blocking piece 51 arranged on the high-level water tank 32 in a sliding manner, a floating plate 52 floating on the liquid surface of the low-level water tank 31, and a connecting rod 53 fixed on the floating plate 52, wherein the top end of the connecting rod 53 is in transmission connection with the blocking piece 51 through an amplifying mechanism arranged between the blocking piece and the connecting rod. Wherein the floating plate 52 is made of foam plate and has larger buoyancy; a limiting rod 111 is fixed on the side wall of the housing 11, the connecting rod 53 passes through the limiting rod 111 and establishes a sliding relationship with the limiting rod 111, and the limiting rod 111 is used for limiting the floating plate 52 to generate lateral displacement when floating up and down.
As shown in fig. 2 and 3, a water delivery port 321 is formed on the side wall of the high-level water tank 32, and the water delivery port 321 is communicated with the inner bottom of the high-level water tank 32; the blocking piece 51 is located at the water delivery port 321, the blocking piece 51 is plate-shaped, the blocking piece 51 and the high-level water tank 32 are in sliding connection through a sliding block chute, the sliding direction of the blocking piece 51 is along the vertical direction, and the blocking piece 51 can switch between two states of closing the water delivery port 321 and opening the water delivery port 321 through sliding. The water delivery port 321 is also connected with a water delivery pipe 322, the water delivery pipe 322 is positioned outside the blocking piece 51, the center of the water delivery pipe 322 is opposite to the water delivery port 321, the end part of the water delivery pipe 322 is in a flaring shape and is fixed on the high-level water tank 32, the water delivery pipe 322 wraps the lower part of the blocking piece 51, and the end part of the water delivery pipe 322, which is away from the water delivery port 321, extends into the low-level water tank 31. When the blocking member 51 slides to open the water delivery port 321, water in the high-level water tank 32 flows into the low-level water tank 31 through the water delivery pipe 322.
As shown in fig. 3 and 4, the amplifying mechanism includes a first gear 61 and a second gear 62 rotatably disposed on the head tank 32, the first gear 61 has a smaller diameter than the second gear 62, and the first gear 61 and the second gear 62 are coaxially fixed by penetrating a rotation shaft, and the rotation shaft is in a horizontal direction. The top end of the connecting rod 53 is provided with a first rack 531 meshed with a first gear 61, and the blocking piece 51 is provided with a second rack 511 meshed with a second gear 62. When the liquid level of the low-level water tank 31 is lowered, the heights of the floating plate 52 and the connecting rod 53 are also lowered, so that the first rack 531 moves downwards and drives the first gear 61 to rotate, and the first gear 61 drives the second rack 511 to move upwards through the rotating shaft and the second gear 62, so that the blocking piece 51 is driven to open the water delivery port 321; when the liquid level of the low level water tank 31 rises, the heights of the floating plate 52 and the connecting rod 53 also rise, the blocking piece 51 moves downwards to gradually close the water delivery port 321, and when the floating plate 52 moves to a certain position, the blocking piece 51 just closes the water delivery port 321 and is in limit, so that the liquid level in the low level water tank 31 is prevented from rising continuously.
Because the diameter of the first gear 61 is smaller than that of the second gear 62, the movement amplitude of the second rack 511 is larger than that of the first rack 531, and when the floating plate 52 moves up and down by a small distance, the displacement can be amplified by the amplifying mechanism and acts on the blocking piece 51, so that the response of the water delivery device 5 is quicker, and the liquid level of the low-level water tank 31 can keep higher consistency.
As shown in fig. 1 and 5, the water inlet pipe 4 communicates with the inside of the low level water tank 31, the water inlet pipe 4 penetrates from the housing 11 and is located on the table 1, and the water inlet pipe 4 is provided with a water inlet valve 41.
The test main pipe 2 is vertically arranged on the workbench 1, the test main pipe 2 is provided with a first valve 24 and a second valve 25 positioned above the first valve 24, and the first valve 24 and the second valve 25 divide the test main pipe 2 into a first pipe 21, a second pipe 22 which are close to the water outlet end 211 and a third pipe 23 which is close to the water return end 231. The first pipe 21 includes a pipe section 212, a water outlet 211 is a bottom end of the pipe section 212, the pipe section 212 can be bent according to human needs, and a balancing weight 213 is fixed at the position of the pipe section 212 at the water outlet 211. The first pipe 21 is communicated with the air pipe 7 and the pressure gauge I214, the air pipe 7 is communicated with the electromagnetic valve 71 and the one-way valve 72, wherein the one-way valve 72 is closer to the first pipe 21 than the electromagnetic valve 71, and the one-way conduction direction of the one-way valve 72 is the direction of the air pipe 7 flowing to the first pipe 21. The other port of the electromagnetic valve 71 is communicated with an external compressed air source, the switch of the electromagnetic valve 71 is controlled by a test switch on the workbench 1, and after the electromagnetic valve 71 is opened, compressed air is conducted into the first pipe 21 through the one-way valve 72.
The second pipe 22 is connected to a second pressure gauge 221. The third pipe 23 is connected to a flow meter 231, and the flow meter 231 in this embodiment is a float-type flow meter, which is a prior art and will not be described herein; the backwater end 231 is positioned at the top of the third pipe 23, and the backwater end 231 is communicated with the inner top of the high-level water tank 32.
The working condition of the water pump performance comprehensive test bench is as follows: closing the water inlet valve 41, placing the water pump to be tested on the positioning seat 12, enabling the water outlet of the water pump to be vertically upwards, pushing the water pump to be communicated with the water inlet pipe 4, inserting the water outlet end 211 into the water outlet of the water pump, and finally connecting the water pump with a power supply to finish installation. During installation, the flexible pipe section 212 capable of being freely bent is convenient for workers to install, after the water pump is installed, the weight of the balancing weight 213 is pressed on the water pump through the water outlet end 211, and the connection stability of the water outlet end 211 and the water pump can be improved to a certain extent.
When the flow is tested, the water inlet valve 41, the first valve 24 and the second valve 25 are opened, then the power supply of the water pump to be tested is started, the water pump starts to operate, the water pump pumps the water in the low-level water tank 31 into the high-level water tank 32 through the test header pipe 2, the flow meter 231 generates readings when the water flows through the flow meter 231, and personnel judge whether the flow parameters of the water pump reach standards according to the readings. When the lift is tested, the second valve 25 is closed, so that water in the test main pipe 2 cannot be discharged, water pressure is built in the first pipe 21 and the second pipe 22, the second pressure gauge 221 generates readings, and the second pressure gauge 221 can judge whether the lift parameter of the water pump reaches the standard according to the readings of the second pressure gauge 221 because the pressure and the lift have a corresponding relation. When the tightness is tested, the first valve 24, the water inlet valve 41 and the water pump power supply are closed, the electromagnetic valve 71 is opened, compressed air is communicated with the first pipe 21 through the air pipe 7, and the pressure is established in the first pipe 21 and the water pump and can be read from the first pressure gauge 214; then, the electromagnetic valve 71 is closed to perform a pressure maintaining test to see whether leakage occurs on the water pump, and meanwhile, the reading of the first pressure gauge 214 is observed to see whether the reading is reduced within a certain time, so that whether the sealing performance of the water pump reaches the standard is judged.
In summary, after the water pump is installed once, the test bench can complete the test of flow, lift and sealing performance at one time, the test bench does not need to be replaced, and the detection efficiency is high; the test header pipe 2 of the test bench integrates multiple functions and has a compact structure. The test bench can also test the electrical performance of the water pump through the electrical signal fed back by the power lead. Three stations on the workbench 1 can be used simultaneously according to requirements, and when one station is in a testing stage, a worker can disassemble and assemble the water pump at the other station, so that the testing efficiency of the water pump is further improved.
Because the liquid level of the low-level water tank 31 is similar to the height of the water inlet pipe 4, the water pressure of the water pump suction inlet is close to zero, thereby ensuring the accuracy of the water pump lift and flow parameter test. In the working process of the water pump, the water delivery device 5 automatically delivers water to the low-level water tank 31, so that the liquid level consistency of the low-level water tank 31 is ensured; and the water delivery device 5 does not need to be externally provided with a driving source when in operation, so that the input cost of the driving source can be reduced.
The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.
Claims (6)
1. A water pump performance comprehensive test board is characterized in that: the water pump water supply device comprises a workbench (1), a water tank (3) and a test main pipe (2), wherein a water inlet pipe (4) for conveying water to the water pump is communicated with the water tank (3), a water inlet valve (41) is arranged on the water inlet pipe (4), and the test main pipe (2) comprises a water outlet end (211) for discharging water from a water supply pump and a water return end (231) communicated with the water tank (3); the test main pipe (2) is provided with a first valve (24) and a second valve (25) for controlling the on-off of the test main pipe, and the first valve (24) and the second valve (25) divide the test main pipe (2) into a first pipe (21), a second pipe (22) and a third pipe (23) which are close to a water outlet end (211) and a water return end (231); an external air source and a pressure meter I (214) are communicated with the first pipe (21), a pressure meter II (221) is communicated with the second pipe (22), and a flowmeter is communicated with the third pipe (23);
The water tank (3) comprises a low-level water tank (31) communicated with the water inlet pipe (4) and a high-level water tank (32) communicated with the water return end (231); the water delivery device (5) is used for delivering water from the high-level water tank (32) to the low-level water tank (31); the liquid level of the low-level water tank (31) is set to be similar to the height of the water inlet pipe (4);
A water delivery port (321) is formed in the high-level water tank (32), and the water delivery port (321) is positioned above the low-level water tank (31); the water delivery device (5) comprises a floating plate (52) floating on the liquid level of the low-level water tank (31), a blocking piece (51) positioned at the water delivery port (321) and a connecting rod (53) connecting the floating plate (52) with the blocking piece (51), the height of the water delivery device (5) changes along with the liquid level of the low-level water tank (31), and the blocking piece (51) can switch two states of closing the water delivery port (321) and opening the water delivery port (321);
An amplifying mechanism is arranged between the blocking piece (51) and the connecting rod (53), the amplifying mechanism comprises a first gear (61) and a second gear (62) which are rotatably arranged on the high-level water tank (32), and the diameter of the first gear (61) is smaller than that of the second gear (62) and the first gear and the second gear are coaxially fixed; the connecting rod (53) is provided with a first rack (531) meshed with the first gear (61), the blocking piece (51) is arranged on the high-level water tank (32) in a sliding mode, and the blocking piece (51) is provided with a second rack (511) meshed with the second gear (62).
2. The water pump performance integrated test stand according to claim 1, characterized in that: the first tube (21) comprises a tube section (212).
3. The water pump performance integrated test stand according to claim 1, characterized in that: the air pipe (7) communicated with an external air source is communicated with the first pipe (21), the electromagnetic valve (71) and the one-way valve (72) are communicated with the air pipe (7), and the one-way conduction direction of the one-way valve (72) is the direction of the air pipe (7) flowing to the first pipe (21).
4. The water pump performance integrated test stand according to claim 1, characterized in that: the water delivery port (321) is connected with a water delivery pipe (322), the blocking piece (51) is positioned between the water delivery port (321) and the water delivery pipe (322), and the water delivery pipe (322) extends into the low-level water tank (31).
5. The water pump performance integrated test stand according to claim 2, characterized in that: the workbench (1) is provided with a positioning seat (12) for placing a water pump, the positioning seat (12) is provided with a positioning groove (121) for sliding a water supply pump, and the water pump can enable a water suction port to be communicated with the water inlet pipe (4) through sliding.
6. The water pump performance integrated test stand according to claim 1, characterized in that: the first pipe (21) is positioned at the water outlet end (211) and is fixedly provided with a balancing weight (213).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810785221.2A CN108980025B (en) | 2018-07-17 | 2018-07-17 | Water pump performance comprehensive test board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810785221.2A CN108980025B (en) | 2018-07-17 | 2018-07-17 | Water pump performance comprehensive test board |
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| CN108980025A CN108980025A (en) | 2018-12-11 |
| CN108980025B true CN108980025B (en) | 2024-04-30 |
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| CN201810785221.2A Active CN108980025B (en) | 2018-07-17 | 2018-07-17 | Water pump performance comprehensive test board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111120704B (en) * | 2020-01-16 | 2022-05-03 | 奇瑞汽车股份有限公司 | Stop valve for automobile and test equipment and test method thereof |
| CN112177916B (en) * | 2020-10-09 | 2022-03-08 | 常州柏繁电气有限公司 | Semi-automatic detection device for booster pump |
| CN113550914B (en) * | 2021-08-24 | 2022-09-13 | 常熟理工学院 | Centrifugal pump test system |
| CN117029356B (en) * | 2023-09-04 | 2024-02-23 | 杭州泵浦节能技术有限公司 | High-efficiency energy-saving device of circulating water system |
| CN117419057B (en) * | 2023-12-18 | 2024-03-08 | 江苏巨忠泵业有限公司 | Submersible pump machine testing process for secondary water supply pressurization system |
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| CN108980025A (en) | 2018-12-11 |
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