Low-noise water pump with better sealing performance

Abstract

The utility model provides a water pump with low noise and better sealing performance, which comprises a plastic air tap upper cover, a plastic air tap lower cover, a cylinder body part, a water bag component, a driving motor, a motor seat and an eccentric driving piece, a water inlet cavity and a water outlet cavity are arranged between the plastic air tap upper cover and the plastic air tap lower cover in a separating way, and the water bag component is arranged on the cylinder body part. The water inlet cavity and the water outlet cavity penetrate through the plastic air nozzle lower cover to be communicated with an inner cavity of the water bag assembly, a one-way valve assembly is further installed on the plastic air nozzle lower cover, the one-way valve assembly is of a three-clack type valve block structure, and the water bag assembly is sleeved with the eccentric driving part. The eccentric driving part sequentially extrudes all the water bag assemblies for pumping along with rotation of the driving motor. The three-clack type valve plate structure is arranged, traditional single valve plate concentrated impact energy is dispersed into three-time attenuation type collision, water flow impact is reduced, noise is lowered, and the sealing effect is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump structure technical field especially relates to a water pump with better low noise and sealing performance. BACKGROUND

[0002] As the core component in the field of fluid delivery, the performance of micro water pump directly affects the working efficiency of equipment and user experience. However, the existing micro water pump still has significant deficiencies in noise control and sealing performance, and technical improvement is urgently needed.

[0003] The conventional one-way valve sheet (such as rubber umbrella valve and silica gel diaphragm valve) needs to complete 20-50 opening and closing actions per second under the driving of fluid pressure. When the valve sheet is closed, the pressure wave generated by the water flow interruption and the impact noise caused by the collision of the valve seat are relatively large.

[0004] Moreover, the conventional one-way valve sheet is horizontally covered at the water outlet channel, and adopts a plane bonding design, so that the sealing effect is poor after long-term use.

[0005] Therefore, there is a need for a new water pump with low noise and high sealing performance to solve the above problems. SUMMARY

[0006] The utility model provides a water pump with low noise and better sealing performance, which solves the problems of large noise and poor sealing performance of the existing water pump one-way valve structure through technical transformation of the existing water pump device.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0008] A water pump with low noise and better sealing performance, comprising a plastic air nozzle upper cover, a plastic air nozzle lower cover, a cylinder body part, a water bag assembly, a driving motor, a motor seat and an eccentric driving member. A fixing screw is sequentially threaded through the plastic air nozzle upper cover, the plastic air nozzle lower cover, the cylinder body part and the motor seat from top to bottom for fixed connection. A driving motor is fixedly installed below the motor seat. A water inlet cavity and a water outlet cavity are separately arranged between the plastic air nozzle upper cover and the plastic air nozzle lower cover. A water inlet and a water outlet are arranged on the plastic air nozzle upper cover. The water inlet is in communication with the water inlet cavity, and the water outlet is in communication with the water outlet cavity. The water bag assembly is installed on the cylinder body part. The water inlet cavity and the water outlet cavity are in communication with the inner cavity of the water bag assembly through the plastic air nozzle lower cover. A one-way valve assembly is also installed on the plastic air nozzle lower cover. The eccentric driving member is sleeved outside the water bag assembly. The eccentric driving member is sequentially extruded to each water bag assembly for pumping by the rotation of the driving motor.

[0009] Preferably, the one-way valve assembly comprises an umbrella assembly and a silica gel center umbrella, the lower cover of the plastic air nozzle is provided with a water inlet through hole and a water outlet through hole, the water inlet through hole and the water outlet through hole are communicated with the inner cavity of the water bag assembly, the umbrella assembly is arranged on the bottom surface of the water inlet through hole of the lower cover of the plastic air nozzle, the umbrella assembly is used for allowing water flow to pass through the lower cover of the plastic air nozzle in one direction from top to bottom, the silica gel center umbrella is arranged above the water outlet through hole of the lower cover of the plastic air nozzle, the silica gel center umbrella is used for allowing water flow to pass through the lower cover of the plastic air nozzle in one direction from bottom to top, and the silica gel center umbrella is arranged opposite to the water outlet of the upper cover of the plastic air nozzle.

[0010] Preferably, the silica gel center umbrella is provided with a three-leaf valve structure which extends outward from the center, the water outlet through hole has three, the lower cover of the plastic air nozzle is provided with a protruding part, the center of the silica gel center umbrella is provided with a recessed part, the protruding part and the recessed part are arranged in a clamping manner, and the three-leaf valve structure is arranged above the three water outlet through holes.

[0011] Preferably, the bottom surface of the upper cover of the plastic air nozzle is further provided with a limiting column, and the limiting column is arranged in abutment with the top surface of the silica gel center umbrella.

[0012] Preferably, the eccentric driving member comprises an eccentric wheel, a steel ball and a swing piece, the lower end of the eccentric wheel is connected with the output end of the driving motor, the upper end of the eccentric wheel is provided with a mounting hole, the steel ball and the swing piece are arranged in the mounting hole in a mounting manner, and the swing piece is sleeved outside the water bag.

[0013] Preferably, a sealing gasket is further arranged between the upper cover of the plastic air nozzle and the lower cover of the plastic air nozzle.

[0014] The utility model discloses beneficial effect lies in:

[0015] The utility model is provided with three water outlet through holes at the water outlet channel, can disperse water flow, and the three-leaf valve of three-leaf valve structure moves independently, disperses the traditional single valve piece concentrated impact energy into three times attenuation type collision, reduces water flow impact, reduces noise.

[0016] The three-leaf valve of the three-leaf valve structure of the utility model forms annular line contact with the through hole, and compared with traditional plane sealing, the unit area contact pressure is larger, and the sealing effect is stronger. DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the explosion structure schematic diagram of the utility model;

[0019] Figure 3 It is the one-way valve assembly mounting structure schematic diagram of the utility model;

[0020] Figure 4 is the upper cover of the plastic air cock and the bottom surface structure schematic diagram of the lower cover of the plastic air cock of the utility model;

[0021] Figure 5 is the eccentric driving member structure schematic diagram of the utility model;

[0022] Explanation of reference numerals: the upper cover of the plastic air cock 1, the water inlet 11, the water outlet 12, the water inlet cavity 13, the water outlet cavity 14, the limiting column 15, the lower cover of the plastic air cock 2, the water inlet through hole 21, the water outlet through hole 22, the convex part 23, the cylinder part 3, the water bag assembly 4, the driving motor 5, the motor seat 6, the eccentric driving member 7, the eccentric wheel 71, the steel ball 72, the swing piece 73, the one-way valve assembly 8, the umbrella assembly 81, the silica gel center umbrella 82, the recessed part 821, the sealing gasket 9. DETAILED DESCRIPTION

[0023] The specific content of the utility model will be described in detail below in combination with the drawings and examples.

[0024] Please refer to Figures 1-5 The utility model discloses a water pump with better low noise and sealing performance, which comprises an upper cover of plastic air cock 1, a lower cover of plastic air cock 2, a cylinder part 3, a water bag assembly 4, a driving motor 5, a motor seat 6 and an eccentric driving member 7. The fixing screws are sequentially arranged from top to bottom through the upper cover of plastic air cock 1, the lower cover of plastic air cock 2, the cylinder part 3 and the motor seat 6. The driving motor 5 is fixedly installed below the motor seat 6. The water inlet cavity 13 and the water outlet cavity 14 are arranged between the upper cover of plastic air cock 1 and the lower cover of plastic air cock 2. The water inlet 11 and the water outlet 12 are arranged on the upper cover of plastic air cock 1. The water inlet 11 is communicated with the water inlet cavity 13. The water outlet 12 is communicated with the water outlet cavity 14. The water bag assembly 4 is installed on the cylinder part 3. The water inlet cavity 13 and the water outlet cavity 14 are communicated with the inner cavity of the water bag assembly 4 through the lower cover of plastic air cock 2. The one-way valve assembly 8 is further installed on the lower cover of plastic air cock 2. The eccentric driving member 7 is sleeved outside the water bag assembly 4. The eccentric driving member 7 is sequentially pressed to each water bag assembly 4 to pump water by rotating the driving motor 5.

[0025] The water bag assembly 4 adopts three groups of TPU water bags, which are installed on the cylinder part in a 120° circumferential distribution.

[0026] Furthermore, the one-way valve assembly 8 includes an umbrella-shaped component 81 and a silicone central umbrella 82. The plastic nozzle lower cover 2 has an inlet hole 21 and an outlet hole 22, which are connected to the inner cavity of the water bag assembly 4. The umbrella-shaped component 81 is installed on the bottom surface of the inlet hole 21 of the plastic nozzle lower cover 2. The umbrella-shaped component 81 is used to supply water flow unidirectionally from top to bottom through the plastic nozzle lower cover 2. The silicone central umbrella 82 is installed on the upper surface of the outlet hole 22 of the plastic nozzle lower cover 2. The silicone central umbrella 82 is used to supply water flow unidirectionally from bottom to top through the plastic nozzle lower cover 2, and the silicone central umbrella 82 is positioned directly opposite the outlet 12 of the plastic nozzle upper cover 1.

[0027] Furthermore, the silicone central umbrella 82 is provided with a three-lobed valve structure extending obliquely outward from the center. There are three water outlet holes 22. A protrusion 23 is provided on the plastic air nozzle lower cover 2, and a recess 821 is provided in the center of the silicone central umbrella 82. The protrusion 23 and the recess 821 are engaged and installed. The three-lobed valve structure covers the three water outlet holes 22 respectively. The three holes divide the total flow into three independent branches, resulting in a lower flow velocity per hole and effectively suppressing turbulence noise.

[0028] During the water intake stage: the silicone central umbrella 82 contracts under negative pressure, the three-lobe valve bends outward and opens, and the water flows into the pump chamber through the three water outlet holes 22;

[0029] During the drainage stage: the silicone central umbrella 82 expands under pressure, pushing the three-lobed valve plate to close inward, tightly covering the water outlet hole 22 to complete the seal.

[0030] Furthermore, the bottom surface of the plastic air nozzle cover 1 is also provided with a limiting post 15, which is in contact with the top surface of the silicone central umbrella 82.

[0031] Furthermore, the eccentric drive component 7 includes an eccentric wheel 71, a steel ball 72, and a rocker component 73. The lower end of the eccentric wheel 71 is connected to the output end of the drive motor 5. The upper end of the eccentric wheel 71 is provided with a mounting hole. The steel ball 72 and the rocker component 73 are installed in the mounting hole. The rocker component 73 is sleeved on the outside of the water bag.

[0032] Furthermore, a sealing gasket 9 is provided between the upper plastic valve cover 1 and the lower plastic valve cover 2.

[0033] This application has three water outlet holes 22 spaced apart at the water outlet channel, which can disperse the water flow. The three valve discs of the three-lobe valve disc structure move independently, which disperses the concentrated impact energy of the traditional single valve disc into three attenuated collisions, reducing water flow impact and noise.

[0034] The three-lobe valve structure of this application forms an annular line contact between the three-lobe valve and the through hole. Compared with the traditional planar seal, the contact pressure per unit area is greater and the sealing effect is stronger.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A low noise, better sealed water pump, characterized in that, The application relates to a plastic air nozzle, which comprises a plastic air nozzle upper cover, a plastic air nozzle lower cover, a cylinder part, a water bag assembly, a driving motor, a motor base and an eccentric driving part.

2. A low noise better sealed water pump as claimed in claim 1 wherein, The one-way valve assembly comprises an umbrella assembly and a silica gel center umbrella, the plastic air nozzle lower cover is provided with a water inlet through hole and a water outlet through hole, the water inlet through hole and the water outlet through hole are communicated with the water bag assembly inner cavity, the umbrella assembly is covered and mounted on the water inlet through hole bottom surface position of the plastic air nozzle lower cover, the umbrella assembly is used for allowing water flow to pass through the plastic air nozzle lower cover in a one-way manner from top to bottom, the silica gel center umbrella is covered and mounted above the water outlet through hole of the plastic air nozzle lower cover, the silica gel center umbrella is used for allowing water flow to pass through the plastic air nozzle lower cover in a one-way manner from bottom to top, and the silica gel center umbrella is arranged opposite to the water outlet of the plastic air nozzle upper cover.

3. A low noise, better sealed water pump as claimed in claim 2, wherein, The silica gel center umbrella is provided with a three-lip valve piece structure which is inclinedly and outwardly extended from the center, the water outlet through hole is three, the plastic air nozzle lower cover is provided with a convex part, a recessed part is formed in the central position of the silica gel center umbrella, the convex part and the recessed part are snap-fitted and arranged, and the three-lip valve piece structure is arranged above the three water outlet through holes.

4. The low noise, better sealed water pump of claim 2, wherein, The plastic air nozzle upper cover bottom surface is further provided with a limiting column which is arranged in abutment with the top surface of the silica gel center umbrella.

5. The low noise better sealed water pump according to claim 1, wherein The eccentric driving part comprises an eccentric wheel, a steel ball and a swing piece, the lower end of the eccentric wheel is connected with the driving motor output end, the upper end of the eccentric wheel is provided with a mounting hole, the steel ball and the swing piece are mounted in the mounting hole, and the swing piece is sleeved outside the water bag.

6. The low noise better sealed water pump according to claim 1, wherein The plastic air nozzle upper cover and the plastic air nozzle lower cover are further provided with a sealing gasket.

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