A centrifugal silent pump

Abstract

The present invention relates to the technical field of centrifugal pumps, and specifically provides a centrifugal silent pump, including a base, and a shock-absorbing plate is installed on the base, a pad is installed on the top of the shock-absorbing plate, and a pump ball is clamped by a circular groove, and the bottom center of the pump ball contacts the shock-guiding cotton, and the periphery contacts the shock absorber. Starting the motor will cause the pump ball to start to take in and out water and generate vibration and noise. Because the shock-guiding cotton contacts the pump ball, the water is transmitted to the shock-absorbing pad, and the physical action of the shock-absorbing pad improves the silent effect. The four corners of the pump ball contact the shock absorber, and the shock absorber can fit the bottom of the pump ball. The vibration will be transmitted to the shock absorber, and the deformation and reset of the shock absorber balance the pump ball until the vibration is eliminated, thereby improving the service life. In addition, after the centrifugal pump is not used for a long time, the water in the pump ball is drained to make the internal and external air pressure consistent. After it is used again, the air pressure in the pump ball needs to be pumped out through a decompression cylinder to lower the air pressure in the pump ball so that it can be used smoothly, otherwise it will cause damage to the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal pumps, and in particular to a centrifugal silent pump. Background Art

[0002] With the development of technology, a pump can be seen in places where liquid water needs to be processed, such as chemical plants, water plants, sewage treatment plants, and even residential homes for home heating. Its main function is to pump and convey liquids. One type of centrifugal silent pump is particularly effective and is generally used in small businesses and residences. The principle is that the water delivered is also driven to rotate at high speed by the mechanical high-speed rotation and the impeller, so that the water generates a large centrifugal force and is discharged from the corresponding pipe to achieve the purpose of pressurized output. In addition, some improvements are made inside to reduce vibration noise and achieve a silent effect.

[0003] The inventors of this application have found that there are the following problems in the practical use process:

[0004] After the motor of the centrifugal silent pump starts to rotate, the impeller in the pump will rotate at high speed and come into contact with the water delivered. In this process, the centrifugal force generated by the water will cause the pump body to shake. At present, the connection method used outside the pump body is still bolted to the cross plate and other areas, so it will produce large vibrations. Long-term operation will damage the machine parts and reduce the service life. It is also impossible to improve the quiet effect from the outside, making the quiet effect worse. Therefore, it is necessary to increase the service life of the centrifugal pump and improve the quiet effect by reducing or balancing the vibration outside the pump body. In addition, after the centrifugal pump has not been used for a long time, the internal and external air pressure needs to be changed to start the pump body and operate normally, otherwise it will cause damage to the equipment. However, the method of filling the pump body with water from the water inlet is generally used, so it is very troublesome to use and the efficiency is very low.

[0005] Therefore, in view of the above-mentioned related technologies, the inventors of this application believe that it is necessary to provide a centrifugal silent pump to solve the above-mentioned technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, a centrifugal silent pump is provided, including a base, and a shock-absorbing plate is installed on the base, a pad is installed on the top of the shock-absorbing plate, the pump ball is clamped by a circular groove, and the bottom center of the pump ball contacts the shock-guide cotton, and the periphery contacts the shock absorber. Starting the motor will cause the pump ball to start to take in and out of water and generate vibration and noise. Because the shock-guide cotton contacts the pump ball, the water is transmitted to the shock-absorbing pad, and the physical action of the shock-absorbing pad improves the silent effect, and the four corners of the pump ball contact the shock absorber, and the shock absorber can fit the bottom of the pump ball, and the vibration will be transmitted to the shock absorber. The deformation and reset of the shock absorber balance the pump ball until the vibration is eliminated, thereby improving the service life. In addition, after the centrifugal pump has not been used for a long time, the water in the pump ball is drained to make the internal and external air pressure consistent. After it is used again, the air pressure in the pump ball needs to be pumped out through a decompression cylinder to lower the air pressure in the pump ball before it can be used smoothly, otherwise it will cause damage to the equipment.

[0007] To achieve the above-mentioned object, the present invention adopts the following technical solution: a centrifugal silent pump, comprising a base, a damping plate fixedly mounted on one side of the top of the base, a pad fixedly connected to the top of the damping plate, a circular groove provided on the top of the pad, a slotted hole provided on the bottom of the circular groove, four circular holes evenly distributed on the inner side of the circular groove, a shock absorber fixedly mounted inside the circular hole, threaded holes evenly distributed on the top of the pad, a pump ball fixedly connected to the inner side of the circular groove, an impeller rotatably connected to the inner side of the pump ball, and a plurality of impellers distributed annularly on one side of the impeller. The pump ball is fixedly connected to a fixing block on one side, and an inlet pipe is fixedly connected to the other side of the pump ball. An outlet pipe is fixedly installed on one side of the top of the pump ball. Fixing plates are evenly provided on the outside of the pump ball. Bolts are movably connected to the inside of the fixing plates. One end of the bolt passes through the inside of the fixing plate and is movably connected to the threaded hole. Two symmetrical U-brackets are fixedly connected to one side of the top of the base. A motor is fixedly installed on the top of the U-bracket. One end of the motor is rotatably connected to a shaft rod. One end of the shaft rod passes through the center of the fixing block and is fixedly engaged with the center of the impeller.

[0008] It is further provided that a decompression cylinder is fixedly installed on the inner side of the exhaust hole, a slider is movably installed inside the decompression cylinder, a connecting ring is fixedly connected to the bottom of the decompression cylinder, and a circular ring is fixedly sleeved on the lower inner side of the connecting ring;

[0009] By adopting the above technical solution, it is helpful to adjust the air pressure change in the decompression cylinder, so that the state of the ring changes from closed to open or open to closed.

[0010] It is further provided that the top of the shock-absorbing plate is provided with a shock-guiding cotton, the interior of the shock-absorbing plate is provided with a shock-absorbing pad, the top of the shock-guiding cotton passes through the inner side of the slot and fits into the outer side of the bottom of the pump ball, the bottom of the shock-guiding cotton passes through the interior of the shock-absorbing plate and is fixedly connected to the top of the shock-absorbing pad, and the interior of the shock-absorbing pad is provided with a plurality of air holes arranged equidistantly;

[0011] By adopting the above technical solution, the vibration is reduced and the noise is dispersed through the physical action in the shock-absorbing pad, thereby improving the quiet effect.

[0012] It is further provided that the shock absorber includes a limiting cylinder, one side of the limiting cylinder is fixedly connected to the bottom of the circular hole, the interior of the limiting cylinder is fixedly connected to a rebound metal, and one end of the rebound metal is fixedly connected to a shock absorbing plate;

[0013] By adopting the above technical solution, the continuous deformation and recovery of the rebound metal can make the pump ball more balanced as a whole and reduce vibration.

[0014] It is further provided that one side of the shock absorbing plate contacts the outer side of the bottom of the pump ball, the entire shock absorbing plate is made of rubber, and a uniform anti-slip opening is provided on one side of the contact surface of the shock absorbing plate and the outer side of the pump ball;

[0015] By adopting the above technical solution, the overall vibration reduction effect of the pump is improved.

[0016] It is further provided that a through hole is provided at the top center of the decompression cylinder, and a threaded air hole is provided on one side close to the through hole, the outside of the threaded air hole is movably connected with a rotating cap, one end of the slider is fixedly connected to a pull rod, the outer side of the pull rod is slidingly engaged with the inner side of the through hole, one end of the pull rod is fixedly connected to one end of the slider after passing through the through hole, the other end of the slider is fixedly connected to a piston, and the outer side of the piston is slidingly connected to the inner side of the decompression cylinder.

[0017] It is further provided that the inner side of the piston is movably connected to a movable rotary cover, one side of the movable rotary cover is fixedly connected to a rotating shaft, one side of the piston is fixedly connected to a rotating plate, and the inner side of the rotating plate is rotatably connected to the outer side of the rotating shaft.

[0018] It is further provided that the inner side of the circular ring is movably connected to a fixed rotating cover, one side of the fixed rotating cover is fixedly connected to a rotating column, one side of the circular ring is fixedly connected to a ring piece, and the inner side of the ring piece is rotatably connected to the outer side of the rotating column.

[0019] Compared with the related art, the centrifugal silent pump provided by the present invention has at least one of the following beneficial technical effects:

[0020] 1. The present invention provides a centrifugal silent pump, which has a shock-absorbing plate installed on the top of the base, and a shock-absorbing pad is provided inside the shock-absorbing plate, which mainly plays the role of filling support and rebound, and through the arrangement of air holes, the uniform gaps of the air holes can well absorb vibration and reduce the noise caused by it, and through the provision of vibration-guiding cotton, one end of the vibration-guiding cotton is directly connected to the shock-absorbing pad, and the other end just contacts the bottom of the pump ball. When the impeller rotates, the water will generate a large centrifugal force to cause the pump ball to vibrate. A part of the vibration generated by the pump ball will be guided into the shock-absorbing pad by the vibration-guiding cotton, thereby absorbing a part of the vibration and the noise generated thereby, so as to enhance the overall silent effect of the centrifugal silent pump. In addition, the inner side of the circular groove can just clamp the bottom of the pump ball and make the bottom of the pump ball contact with the shock absorber. When the pump ball generates When vibrating and shaking, it will first contact the shock-absorbing plate, and due to the special nature of its rubber material, it can fit tightly together, and due to the design of the anti-slip mouth, it will not slip, and then the rebound metal can be compressed and rebound in time to resist and absorb larger vibrations. There are four shock absorbers arranged in a circle around the bottom of the pump ball, which can also play a role in balancing and absorbing the pump ball when resisting and absorbing vibrations. There is no need to worry when the connection between the bolt and the threaded hole ages or falls off due to long-term vibration. It can solve the problem of the pump ball directly contacting the circular groove when vibrating and shaking, causing greater vibration and noise, thereby increasing the overall service life of the centrifugal silent pump and reducing the probability of damage to its internal parts. It solves the technical problem that the centrifugal silent pump directly installed by bolts will generate large vibration and noise due to aging.

[0021] 2. The present invention provides a centrifugal silent pump, which adopts an exhaust hole on the top of the pump ball and a decompression cylinder installed on the exhaust hole, and a slider is installed on the inner side of the decompression cylinder, and one end of the slider passes through the through hole and is located at the top of the decompression cylinder and is stuck. By pulling the pull rod from the outside, the piston can be driven to slide upward along the inner side of the decompression cylinder, and the air pressure above the movable rotary cover is compressed, causing the movable rotary cover to rotate toward the direction of the pump ball and be stuck by the piston. At the same time, the movable rotary cover rotates toward the direction of the pump ball, and the fixed rotary cover rotates toward the movable rotary cover, so that the space between the fixed rotary cover and the ring is opened, and the gas in the pump ball enters the decompression cylinder. When the pull rod is pressed to make the piston slide downward along the inside of the decompression cylinder, Because the air pressure at the top of the movable rotary cover is lower than the air pressure at the bottom, the movable rotary cover will rotate toward the pull rod with the rotating shaft as the center, so that the space between the movable rotary cover and the piston is opened, so that the gas at the bottom of the movable rotary cover is absorbed to the top of the movable rotary cover and discharged from the threaded air hole. After several reciprocating presses and pulls, the gas in the pump ball will be sucked out and the internal air pressure will be reduced. The rotary cap is rotated to the outside of the threaded air hole, so that the air pressure in the pressure reducing cylinder is sealed. At this time, when the impeller starts to rotate and run, the impeller will be easily sucked into the interior of the pump ball because the air pressure of the external water source is greater than the air pressure inside the pump ball. This solves the technical problem of traditional water filling being troublesome and very low efficiency, and improves the speed of starting and using the centrifugal silent pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of a centrifugal silent pump provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the disassembly of the shock absorbing plate and the cushion block of the present invention;

[0024] Figure 3 This is a disassembled diagram of the shock absorber of the present invention;

[0025] Figure 4 Schematic diagram of the shock-absorbing pad of the present invention;

[0026] Figure 5 This is a disassembled diagram of the internal structure of the pump ball of the present invention;

[0027] Figure 6 Schematic diagram of the motor of the present invention;

[0028] Figure 7 This is a disassembled diagram of the internal structure of the decompression cylinder of the present invention.

[0029] Figure 8 This is a disassembly diagram of the practical slider;

[0030] Figure 9 This is a schematic diagram of the connection between the practical ring and the fixed rotating cover;

[0031] Numbers in the figure: 1, base; 2, shock-absorbing plate; 201, shock-guiding cotton; 202, shock-absorbing pad; 2021, air hole; 3, pad; 301, round groove; 3011, slot hole; 302, round hole; 303, threaded hole; 304, shock absorber; 3041, limit cylinder; 3042, rebound metal; 3043, shock-absorbing plate; 4, pump ball; 401, fixing block; 402, inlet pipe; 403, outlet pipe; 404, fixing plate; 405, bolt; 4 06. Exhaust hole; 5. Impeller; 501. Blade; 6. Pressure reducing cylinder; 601. Slider; 6011. Pull rod; 6012. Piston; 6013. Rotor; 602. Connecting ring; 603. Circular ring; 6031. Ring plate; 604. Perforation; 605. Threaded air hole; 606. Rotor cap; 607. Fixed rotary cover; 6071. Rotating column; 608. Movable rotary cover; 6081. Rotating shaft; 7. U bracket; 8. Motor; 801. Shaft. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown.

[0033] Example 1:

[0034] like Figures 1 to 2 As shown, a centrifugal silent pump of the present invention includes a base 1, and a U-bracket 7 is installed on one side of the top of the base 1, and a motor 8 is placed on the U-bracket 7 and fixed, a shock-absorbing plate 2 is installed on the other side of the top of the base 1, and a pad 3 is installed on the top of the shock-absorbing plate 2. By clamping the bottom outer side of the pump ball 4 on the inner side of the circular groove 301, and making the bottom center of the pump ball 4 contact the shock-guide cotton 201, and the bottom periphery of the pump ball 4 contact the shock absorber 304, the motor 8 can be started to start running. The operation will cause the pump ball 4 to start to take in and out water and generate continuous vibration and noise. First, the noise generated by the vibration of the pump ball 4 will be caused by the shock-guide cotton 201 contacting the pump ball 4 and transmitted to the shock-absorbing pad 202, and the physical action in the shock-absorbing pad 202 will make the pump ball 4 start to move. The vibration is reduced and the noise is dispersed, thereby improving the silent effect. Most of the vibration generated by the pump ball 4 is in direct contact with the inner side of the circular groove 301, and because the four corners are in contact with the shock absorber 304, the shock absorber 304 can be deformed to make it fit more closely to the bottom of the pump ball 4. The vibration will be transmitted to the shock absorber 304. The continuous deformation and continuous resetting of the shock absorber 304 balance the pump ball 4 until the vibration is eliminated, thereby increasing the service life of the centrifugal silent pump. In addition, after the centrifugal pump has not been used for a long time, the water in the pump ball 4 is drained to make the internal and external air pressure consistent. After it is used again, it is necessary to extract part of the air pressure in the pump ball 4 through the decompression cylinder 6 to make the air pressure in the pump ball 4 lower than the external air pressure, so that the water source can be smoothly input into the pump ball 4 and then output. Otherwise, it will cause damage to the equipment.

[0035] like Figure 3As shown, the outer side of the bottom of the pump ball 4 contacts the shock-absorbing plate 3043. Since the shock-absorbing plate 3043 can be squeezed and fit onto the outer side of the pump ball 4 and a non-slip opening is provided on one side of the shock-absorbing plate 3043 so that it does not slip when fitted, the vibration generated by the pump ball 4 will be rebounded by the extrusion deformation of the rebound metal 3042, and finally the pump ball 4 will be balanced to reduce and eliminate the vibration. The limiting cylinder 3041 acts to fix and limit the rebound metal 3042 from excessive deformation and displacement.

[0036] like Figure 4 As shown, the interior of the shock-absorbing pad 202 has dense air holes 2021, and the air holes 2021 can effectively decompose the noise generated by vibration to eliminate the noise, so as to achieve the effect of improving the quietness from the outside when the centrifugal pump is running.

[0037] like Figures 5 and 6 As shown, when the motor 8 starts running, the shaft 801 will rotate at a high speed. At this time, since the shaft 801 passes through the center of the fixed block 401 and is connected to the impeller 5, it will also drive the impeller 5 to rotate inside the pump ball 4. At this time, the external water source is input into the interior of the pump ball 4 from the inlet pipe 402, so that the blades 501 contact the water, and the rotation of the impeller 5 causes the blades 501 to rotate the water. The continuous high-speed rotation will cause the water to generate a very large centrifugal force, and at this time it can be discharged from the outlet pipe 403, thereby achieving the problem of pressurized water supply. In addition, the shaft 801 is connected to the threaded hole 303 through the fixing plate 404 and the bolt 405, so that the pump ball 4 will not shift during rotation, so that the motor 8 can operate normally.

[0038] During implementation, first, the pump ball 4 is placed on the inner side of the circular groove 301, so that the bottom of the pump ball 4 contacts the shock-absorbing plate 3043 around, and the bottom center of the pump ball 4 contacts the shock-guiding cotton 201, and one end of the bolt 405 is passed through the fixing plate 404 and connected to the threaded hole 303 and tightened, so that the pump ball 4 is fixed and will not shift. Then, the gas in the pump ball 4 is discharged from the exhaust hole 406 to the outside of the pump ball 4 by operating the pressure reducing cylinder 6, so that the air pressure in the pump ball 4 is reduced and water can enter smoothly. At this time, the motor 8 is installed above the U bracket 7 and the motor 8 is started. After the motor 8 is running, the shaft 801 starts to rotate, and the rotation of the shaft 801 causes the impeller 5 to start rotating at high speed. Due to the rotation of the impeller 5, the blades 501 contact the water input from the inlet pipe 402, and the water is rotated by the blades 501 and a large centrifugal force is generated. The centrifugal force pressurizes the water and when the water rotates to the outlet pipe 403, it flows out of the outlet pipe 403. The inside of the pump ball 4 is discharged internally. At this time, the pump ball 4 will vibrate due to the internal centrifugal force during the water supply and drainage process, and the contact between the pump ball 4 and the circular groove 301 will generate noise. The vibration noise generated first will be due to the contact between the bottom center of the pump ball 4 and the shock-guide cotton 201 and squeezed on the top of the shock-guide cotton 201, and transmitted to the shock-absorbing pad 202 through the shock-guide cotton 201, and a small part of the vibration will be alleviated through the air holes 2021 and this part of the vibration noise will be decomposed, thereby achieving the purpose of improving the silent effect. The bottom of the pump ball 4 is in contact with the shock-absorbing plate 3043 and has anti-slip mouth and deformation ability, which can fit around the bottom of the pump ball 4. The vibration will first be transmitted to the shock-absorbing plate 3043 and then to the rebound metal 3042. The continuous deformation and recovery of the rebound metal 3042 will make the pump ball 4 more balanced as a whole and reduce vibration. The reduced vibration increases the probability of internal parts falling off and wearing, thereby increasing the service life of the centrifugal silent pump.

[0039] Example 2:

[0040] like Figure 7 As shown, based on the first embodiment, the present invention provides a technical solution: first, a pressure reducing cylinder 6 is installed on the outside of the top of the pump ball 4, and a slider 601 is installed inside the pressure reducing cylinder 6, and one end of the slider 601 is passed through the through-hole 604 and arranged on the outside of the pressure reducing cylinder 6. The slider 601 can be pushed and pulled on the top of the pressure reducing cylinder 6 to change the air pressure in the pressure reducing cylinder 6, causing the state of the ring 603 to change from closed to open or open to closed. In addition, a threaded air hole 605 for venting is provided on the top of the pressure reducing cylinder 6 to discharge the gas in the pressure reducing cylinder 6, and the use of the exhaust can be controlled by turning the cap 606 to close or open.

[0041] like Figures 8 and 9As shown, when the pull rod 6011 is pulled, the piston 6012 will be pulled up at the same time to slide along the inner side of the decompression cylinder 6 toward the pull rod 6011, and the movable rotary cover 608 will also slide upward. When the piston 6012 slides toward the pull rod 6011, the air pressure in the movable rotary cover 608 is compressed, so that the movable rotary cover 608 can only cover the top of the piston 6012 and cannot rotate. Since the movable rotary cover 608 slides toward the pull rod 6011, the air between the fixed rotary cover 607 and the movable rotary cover 608 will be compressed, causing the air pressure in the pump ball 4 to be higher than that between the fixed rotary cover 607 and the movable rotary cover 608, so that the rotating column 6071 at one end of the fixed rotary cover 607 rotates with the ring piece 6031 as the center, so that the ring 603 is no longer closed, and the gas in the pump ball 4 enters between 307 and 308. When the pull rod 6011 is pressed to make the piston 6012 slide downward along the inside of the pressure reducing cylinder 6, the air pressure at the top of the movable rotary cover 608 will be lower than the air pressure at the bottom, causing the movable rotary cover 608 to rotate in the direction of the pull rod 6011 with the rotating shaft 6081 as the center, so that the space between the movable rotary cover 608 and the piston 6012 is opened, so that the gas at the bottom of the movable rotary cover 608 is absorbed to the top of the movable rotary cover 608 and discharged from the threaded air hole 605. After several reciprocating presses and pulls, the gas in the pump ball 4 is sucked away and discharged, thereby achieving the effect of reducing its internal air pressure, and rotates to the outside of the threaded air hole 605 through the rotary cap 606, so that the air pressure inside the pressure reducing cylinder 6 is sealed. At this time, when the impeller 5 starts to rotate and run, it will be easily sucked into the interior of the pump ball 4 because the external water source air pressure is higher than the air pressure inside the pump ball 4.

[0042] In practice, the decompression cylinder 6 is installed on the exhaust hole 406, the slider 601 is installed on the inner side of the decompression cylinder 6, and one end of the slider 601 is passed through the through-hole 604 and is located at the top of the decompression cylinder 6 and is stuck. By pulling the pull rod 6011 from the outside, the piston 6012 can be driven to slide upward along the inner side of the decompression cylinder 6. The air pressure above the movable rotary cover 608 is compressed, causing the movable rotary cover 608 to rotate toward the pump ball 4 and be stuck by the piston 6012. At the same time, the movable rotary cover 608 rotates toward the pump ball 4, and the fixed rotary cover 607 rotates toward the movable rotary cover 608, so that the space between the fixed rotary cover 607 and the ring 603 is opened, and the gas in the pump ball 4 enters the decompression cylinder 6. When the pull rod 6011 is pressed, the piston 6012 moves along the inside of the decompression cylinder 6 to When sliding downward, the air pressure at the top of the movable rotary cover 608 will be lower than the air pressure at the bottom, causing the movable rotary cover 608 to rotate in the direction of the pull rod 6011 with the rotating shaft 6081 as the center, so that the space between the movable rotary cover 608 and the piston 6012 is opened, so that the gas at the bottom of the movable rotary cover 608 is absorbed to the top of the movable rotary cover 608 and discharged from the threaded air hole 605. After several reciprocating presses and pulls, the gas in the pump ball 4 is sucked away and discharged, thereby reducing its internal air pressure, and rotates to the outside of the threaded air hole 605 through the rotary cap 606, so that the air pressure in the decompression cylinder 6 is sealed. At this time, when the impeller 5 starts to rotate and run, it will be easily sucked into the interior of the pump ball 4 because the air pressure of the external water source is greater than the air pressure inside the pump ball 4, solving the technical problem that traditional water filling is troublesome and very inefficient.

[0043] The advantages of this technical solution in practical applications include but are not limited to the following:

[0044] 1. By providing a shock-absorbing plate 2 and a pad 3 at the bottom of the centrifugal silent pump ball 4, the vibration and vibration noise at the bottom center are absorbed and dispersed, thereby improving the silent effect. By balancing the four sides of the bottom of the pump ball 4, the vibration is reduced and eliminated, thereby extending the service life of the centrifugal silent pump by eliminating vibration from the outside of the pump ball 4.

[0045] 2. By providing a decompression cylinder 6 on the top of the pump ball 4, and by pulling and pushing the slider 601, the movable rotary cover 608 and the fixed rotary cover 607 rotate in turn and extract the gas in the pump ball 4 to the outside of the pump ball 4, thereby quickly reducing the air pressure inside the pump ball 4 and improving the use efficiency.

[0046] This technical solution first places the pump ball 4 on the inner side of the circular groove 301, so that the bottom of the pump ball 4 contacts the shock-absorbing plate 3043, and the bottom center of the pump ball 4 contacts the shock-guiding cotton 201, and one end of the bolt 405 is passed through the fixing plate 404 and connected to the threaded hole 303 and tightened, so that the pump ball 4 is fixed and will not shift. Then, by operating the decompression cylinder 6, the gas in the pump ball 4 is discharged from the exhaust hole 406 to the outside of the pump ball 4, so that the air pressure in the pump ball 4 is reduced and water can enter smoothly. At this time, the motor 8 is installed above the U bracket 7 and the motor 8 is started. After the motor 8 is running, the shaft 801 starts to rotate, and the rotation of the shaft 801 causes the impeller 5 to start rotating at high speed. As the impeller 5 rotates, the blades 501 contact the water input from the inlet pipe 402. 303, and the water is rotated by the blades 501 and a large centrifugal force is generated. The centrifugal force increases the pressure of the water and is discharged from the inside of the pump ball 4 from the outlet pipe 403 when the water rotates to the outlet pipe 403. At this time, the pump ball 4 will vibrate due to the internal centrifugal force during the water delivery and drainage process, and the pump ball 4 will generate noise when it contacts the circular groove 301. The vibration noise generated first will be caused by the bottom center of the pump ball 4 contacting and squeezing the top of the vibration-guide cotton 201 and being transmitted to the shock-absorbing pad 202 through the shock-guide cotton 201, and a small part of the vibration will be relieved through the air hole 2021 and this part of the vibration noise will be decomposed, thereby achieving the purpose of improving the silent effect. The bottom of the pump ball 4 is in contact with the shock-absorbing plate 3043 and has anti-slip mouth and deformation ability, which can fit around the bottom of the pump ball 4, and the vibration The vibration will first be transmitted to the shock absorbing plate 3043 and then to the rebound metal 3042. The continuous deformation and recovery of the rebound metal 3042 will make the pump ball 4 more balanced as a whole and reduce vibration. The reduced vibration will increase the probability of internal parts falling off and wearing, thereby increasing the service life of the centrifugal silent pump. In addition, a decompression cylinder 6 is installed on the exhaust hole 406, and a slider 601 is installed on the inner side of the decompression cylinder 6, and one end of the slider 601 is passed through the through-hole 604 and is located at the top of the decompression cylinder 6 and is stuck. By pulling the pull rod 6011 from the outside, the piston 6012 can be driven to slide upward along the inner side of the decompression cylinder 6. The air pressure above the movable rotary cover 608 will be compressed, causing the movable rotary cover 608 to rotate toward the pump ball 4 and be driven by the piston 60 12 is stuck and stops, and the movable rotary cover 608 rotates toward the direction of the pump ball 4 while the fixed rotary cover 607 rotates toward the movable rotary cover 608, so that the gap between the fixed rotary cover 607 and the ring 603 is opened, and the gas in the pump ball 4 enters the decompression cylinder 6. When the pull rod 6011 is pressed to make the piston 6012 slide downward along the inside of the decompression cylinder 6, the air pressure at the top of the movable rotary cover 608 is lower than the air pressure at the bottom, which causes the movable rotary cover 608 to rotate toward the pull rod 6011 with the rotating shaft 6081 as the center, so that the gap between the movable rotary cover 608 and the piston 6012 is opened, so that the gas at the bottom of the movable rotary cover 608 is absorbed to the top of the movable rotary cover 608 and discharged from the threaded air hole 605. After several reciprocating presses and pulls,The gas inside the pump ball 4 is sucked out and discharged, thereby reducing the internal air pressure. The rotating cap 606 rotates to the outside of the threaded air hole 605, sealing the air pressure inside the pressure reducing cylinder 6. At this time, when the impeller 5 starts to rotate, the external water pressure is greater than the internal pressure of the pump ball 4, and the water is easily sucked into the pump ball 4, solving the technical problems of traditional water filling, which is troublesome and very inefficient.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal silent pump, comprising a base (1), characterized in that: A damping plate (2) is fixedly mounted on one side of the top of the base (1), a cushion block (3) is fixedly connected to the top of the damping plate (2), a circular groove (301) is provided on the top of the cushion block (3), a slot hole (3011) is provided on the bottom of the circular groove (301), four circular holes (302) are evenly distributed on the inner side of the circular groove (301), a damper (304) is fixedly mounted inside the circular hole (302), threaded holes (303) are evenly distributed on the top of the cushion block (3), a pump ball (4) is fixedly clamped on the inner side of the circular groove (301), an impeller (5) is rotatably clamped inside the pump ball (4), a plurality of blades (501) are annularly distributed on one side of the impeller (5), and a fixed block (301) is fixedly connected to one side of the pump ball (4). 401), the other side of the pump ball (4) is fixedly connected to the inlet pipe (402), the top side of the pump ball (4) is fixedly installed with the outlet pipe (403), the outer side of the pump ball (4) is evenly provided with a fixing plate (404), the interior of the fixing plate (404) is movably connected with a bolt (405), one end of the bolt (405) passes through the interior of the fixing plate (404) and is movably connected to the threaded hole (303), the top side of the base (1) is fixedly connected with two symmetrical U brackets (7), the top of the U bracket (7) is fixedly installed with a motor (8), one end of the motor (8) is rotatably connected to a shaft (801), one end of the shaft (801) passes through the center of the fixing block (401) and is fixedly engaged with the center of the impeller (5); The pump ball (4) is provided with an exhaust hole (406) on the top, a decompression cylinder (6) is fixedly installed on the inner side of the exhaust hole (406), a slider (601) is movably installed inside the decompression cylinder (6), a connecting ring (602) is fixedly connected to the bottom of the decompression cylinder (6), and a circular ring (603) is fixedly sleeved on the inner lower side of the connecting ring (602); A through hole (604) is provided at the top center of the decompression cylinder (6), and a threaded air hole (605) is provided on one side close to the through hole (604). The outside of the threaded air hole (605) is movably connected to a rotating cap (606). One end of the slider (601) is fixedly connected to a pull rod (6011). The outside of the pull rod (6011) is slidably engaged with the inside of the through hole (604). One end of the pull rod (6011) passes through the through hole (604) and is fixedly connected to one end of the slider (601). The other end of the slider (601) is fixedly connected to a piston (6012). The outside of the piston (6012) is slidably engaged with the inside of the decompression cylinder (6). The inner side of the piston (6012) is movably connected to a movable rotating cover (608), one side of the movable rotating cover (608) is fixedly connected to a rotating shaft (6081), and one side of the piston (6012) is fixedly connected to a rotating plate (6013), and the inner side of the rotating plate (6013) is rotatably connected to the outer side of the rotating shaft (6081); The inner side of the circular ring (603) is movably connected to a fixed rotating cover (607), one side of the fixed rotating cover (607) is fixedly connected to a rotating column (6071), and one side of the circular ring (603) is fixedly connected to a ring piece (6031), and the inner side of the ring piece (6031) is rotatably connected to the outer side of the rotating column (6071).

2. A centrifugal silent pump according to claim 1, characterized in that: A shock-guide cotton (201) is provided on the top of the shock-absorbing plate (2), and a shock-absorbing pad (202) is provided inside the shock-absorbing plate (2). The top of the shock-guide cotton (201) passes through the inner side of the slot (3011) and fits with the outer side of the bottom of the pump ball (4). The bottom of the shock-guide cotton (201) passes through the inside of the shock-absorbing plate (2) and is fixedly connected to the top of the shock-absorbing pad (202). A plurality of air holes (2021) are arranged equidistantly inside the shock-absorbing pad (202).

3. A centrifugal silent pump according to claim 1, characterized in that: The shock absorber (304) comprises a limiting cylinder (3041), one side of the limiting cylinder (3041) is fixedly connected to the bottom of the circular hole (302), the interior of the limiting cylinder (3041) is fixedly connected to a rebound metal (3042), and one end of the rebound metal (3042) is fixedly connected to a shock absorbing plate (3043).

4. A centrifugal silent pump according to claim 3, characterized in that: One side of the shock absorbing plate (3043) contacts the outer side of the bottom of the pump ball (4); the entire shock absorbing plate (3043) is made of rubber; and a uniform anti-slip opening is provided on one side of the contact surface of the shock absorbing plate (3043) and the outer side of the pump ball (4).

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