CN215109703U

CN215109703U - Air pump for overground water pool and overground water pool

Info

Publication number: CN215109703U
Application number: CN202120771741.5U
Authority: CN
Inventors: 黄水勇
Original assignee: Nantong Rongwei Entertainment Co ltd
Current assignee: Nantong Rongwei Entertainment Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-10
Anticipated expiration: 2031-04-15

Abstract

The utility model relates to an air pump and pond on ground for pond on ground. The air pump comprises a pump cover, a motor and an impeller which are arranged in the pump cover, and an air outlet pipe which is connected with the pump cover and is suitable for outputting air to a pool body, wherein at least one-way valve is arranged in the air outlet pipe, the one-way valve comprises a valve rod and a valve rod sealing piece, the valve rod comprises a valve rod shaft and a valve rod cap arranged at one end part of the valve rod shaft, the valve rod sealing piece is sleeved on the valve rod cap, the peripheral edge of the valve rod sealing piece is arranged to be in contact with the inner wall of the air outlet pipe when no air passes through, and the ratio of the peripheral diameter of the valve rod sealing piece to the peripheral diameter of the valve rod cap is at least 1.1. According to the utility model discloses an air pump possesses good noise reduction, has consequently effectively improved pond user's sense organ and has experienced.

Description

Air pump for overground water pool and overground water pool

Technical Field

The utility model relates to an air pump manufacturing technical field. More particularly, the present invention relates to an air pump for an above-ground water pool, and to an above-ground water pool including such an air pump.

Background

The above-ground pools (bracketed pools, inflatable pools, massage pools, etc.) currently on the market usually have a control box for holding the pool pump, wherein the pool pump in the control box usually comprises a filter pump and an air pump, and some also comprise a massage pump. The air pump can be used for inflating the wall of the inflatable pool and can also be used for supplying bubbles to the water in the pool to generate a massage effect. The prior art air pump for an above-ground water pool has the disadvantage that the air generates high flow velocity after being pressurized, which causes high noise, thereby affecting the surrounding environment and the use experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the above-mentioned prior art, provide a novel air pump that is used for pond on the ground, this kind of air pump possesses good noise reduction effect, has consequently effectively improved pond user's sense organ and has experienced.

Therefore, the utility model discloses an aspect provides an air pump for pond on ground, the air pump include the pump casing, set up in motor and impeller in the pump casing and with the pump casing is connected in order being suitable for to the gaseous outlet duct of pond output, be provided with at least one check valve in the outlet duct, the check valve includes valve rod and valve stem seal, the valve rod include the valve rod axle with set up in the valve rod cap of a valve rod axle tip, the valve stem seal cover is located on the valve rod cap, and the neighboring of valve stem seal arranges into the contact when no gas passes through the inner wall of outlet duct, wherein, valve stem seal's peripheral diameter with the ratio of the peripheral diameter of valve rod cap is 1.1 at least.

According to an optional embodiment of the present invention, the ratio of the outer peripheral diameter of the stem seal to the outer peripheral diameter of the stem cap is at least 1.2.

According to an optional embodiment of the invention, the valve stem cap has a circumferential outer end face parallel to the valve stem shaft, and the valve stem seal is shaped to abut against this circumferential outer end face.

According to an optional embodiment of the present invention, the air pump further comprises an air guide wheel disposed in the pump housing downstream of the impeller.

According to the utility model discloses an optional implementation mode, the inducer includes the wheel body and is the radial a plurality of wind-guiding pieces of spiral, the wheel body is equipped with the confession the pivot of motor passes the centre bore, the wind-guiding piece set up with the circumference array form in the low reaches surface of wheel body and follow the circumference edge orientation of wheel body the centre bore extends, and is adjacent clearance between the wind-guiding piece forms the wind channel.

According to an optional embodiment of the present invention, the air guiding plate and the wheel body are integrally formed.

According to an alternative embodiment of the invention, the wheel body is provided with a plurality of fixing holes around the edge of the central hole.

A second aspect of the present invention provides an above-ground water pool, the above-ground water pool comprises an air pump for the above-ground water pool according to the present invention.

According to an optional embodiment of the present invention, the above-ground pool is an inflatable pool or a support pool.

According to the utility model discloses an in the air pump, because the valve rod sealing member of check valve is greater than the peripheral diameter of valve rod cap with the specific structure of valve rod cap and its peripheral diameter, valve rod sealing member's marginal portion's deformation can make the gas flow more smooth and easy, therefore noise greatly reduced when the air pump moves can not influence surrounding environment and use and experience. In addition, the one-way valve has simple structure, easy implementation and lower cost.

Drawings

Other features and advantages of the present invention will be better understood by the following detailed description of the preferred embodiments when considered in conjunction with the accompanying drawings in which like reference characters designate the same or similar parts throughout the figures thereof. It should be noted that the drawings are not only for the explanation of the present invention but also for the limitation of the present invention as necessary.

FIG. 1 is a schematic perspective view of one embodiment of an above ground pool according to the present invention;

FIG. 2 is a perspective view similar to FIG. 1 with the control panel on the control box of the above-ground pool in an upturned position;

FIG. 3 is a schematic view of the interior construction of the control box of the above ground pool of FIG. 1;

FIG. 4 is an exploded schematic view of an air pump disposed in the control box of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the air pump of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the valve stem and valve stem seal of the air pump of FIG. 4; and

fig. 7 is a perspective view of an air guide wheel of the air pump in fig. 4.

Detailed Description

The practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

In the present specification, directional expressions such as "top", "bottom", "upper", "lower" and the like are not absolute, but relative, when describing structural positions of respective components. These directional expressions are appropriate when the respective components are arranged as shown in the drawings, but should be changed accordingly when the positions of the respective components in the drawings are changed.

As shown in fig. 1 and 2, the above-ground pool according to the present invention includes a pool body 1 and a control box 2 for placing a pool pump. In the embodiment shown, the above-ground pool is an aerated pool, i.e. the pool walls of the pool body 1 are aerated pool walls. It will be appreciated that the type of above-ground pool is not limiting and that the above-ground pool can also be, for example, a rack pool.

The pool pump includes a filtered water pump and an air pump disposed in the control box 2. As shown in fig. 3, the filtration water pump is in fluid communication with the water injection area of the water tank body 1 through a water inlet pipe 4 and a water outlet pipe 5 so as to realize water circulation, thereby filtering impurities in the water and optionally heating the water through a heater. The air pump is connected with the water tank body 1 through an air outlet pipe 6, and under the condition of the inflatable water tank, the air pump can be used for inflating the inflatable tank wall of the water tank body 1 and also can be used for outputting air to a water injection area of the water tank body 1 so as to provide bubbles into water to generate a massage effect. In addition, the sump pump further includes a control panel 3 foldably connected to the top of the control box 2 so that a user can control the start and stop of the filtering water pump and the air pump, the control panel 3 of fig. 1 is in a downwardly folded state against the control box 2, and the control panel 3 of fig. 2 is in an upwardly folded state after being folded upwardly by approximately 90 °.

Fig. 4 and 5 show the detailed construction of the air pump provided in the control box 2 of the sump pump in detail. As shown in fig. 4 and 5, the air pump mainly includes a pump housing 7, a motor 8 and an impeller 9 provided in the pump housing 7, and an air outlet pipe 6 connected to the pump housing 7 to output air to the sump body 1.

More specifically, the motor 8 is fixed inside the pump housing 7 through a motor housing 801, and an impeller 9 is connected to an upper end portion of a rotating shaft 802 of the motor 8, the impeller 9 being surrounded by a vane housing 10 connected to the pump housing 7. In fact, the vane shroud 10 and the motor shroud 801 together delimit a pressurised chamber in fluid communication with the intake a on the pump shroud 7. An outlet pipe 6 is connected to the bottom of the pump housing 7 and is in fluid communication with the pressurizing chamber so that gas can be output to the sump body 1 through the outlet pipe 6. In order to prevent water inside the water tank from flowing back to the inside of the air pump, at least one check valve allowing air to flow toward the air outlet B is provided in the air outlet pipe 6.

In the embodiment shown, the outlet duct 6 comprises, in the direction of flow of the gases, an upstream section 601, an intermediate section 602 and a downstream section 603. The upstream section 601 has a substantially right-angled bent shape, the upstream section 601 is connected to the bottom of the pump housing 7 and is in fluid communication with the gas pressurizing chamber, and the intermediate section 602 and the downstream section 603 having the gas outlet B are connected in series downstream of the upstream section 601. In this outlet duct 6, a first check valve is arranged between the upstream section 601 and the intermediate section 602, and a second check valve is arranged between the intermediate section 602 and the downstream section 603. Furthermore, sealing rings 15 are arranged at the connection point of the upstream section 601 and the intermediate section 602 and at the connection point of the intermediate section 602 and the downstream section 603 to prevent gas leakage. It will be appreciated that the number of sections of the outlet tube 6 and the number of check valves are not limiting and may be determined according to the actual construction and use requirements of the air pump.

Each check valve includes a stem 12 and a stem seal 13, and the stem 12 includes a stem shaft 121 extending in the gas transmission direction and a stem cap 122 provided at one end of the stem shaft 121. The valve stem 12 is axially movably arranged in the outlet pipe 6, and the valve stem shaft 121 is sleeved with a spring 14. A stem seal 13 made of a flexible material is fitted over the stem cap 122, and the outer peripheral edge of the stem seal 13 is arranged to contact the inner wall of the outlet pipe 6 when no gas passes therethrough.

When the motor 8 is operated, the rotating shaft 802 of the motor 8 rotates the impeller 9, so that the gas entering the pump housing 7 through the gas inlet a is pressurized by the impeller 9 in the pressurizing chamber and reaches the gas outlet pipe 6, and pushes the valve rod 12 in the gas outlet pipe 6 to move toward the spring 14, at which time the spring 14 is compressed, and the edge portion of the valve rod sealing member 13 deforms against the valve rod cap 122 and separates from the inner wall of the gas outlet pipe 6, so that the gas reaches the gas outlet B through a gas passage formed between the valve rod sealing member 13 and the inner wall of the gas outlet pipe 6. The arrows in fig. 5 schematically show the gas flow path in the gas pump. When the motor 8 stops, the valve stem 12 is restored and the valve stem packing 13 contacts the inner wall of the outlet pipe 6 again to close the gas passage by the elastic restoring force of the spring 14.

According to the present invention, as shown in fig. 6, the ratio of the outer peripheral diameter D1 of the stem seal 13 to the outer peripheral diameter D2 of the stem cap 122 is at least 1.1, preferably at least 1.2. According to one embodiment, the outer peripheral diameter D1 of the valve stem seal 13 is between 55mm and 60mm, e.g., equal to 58mm, while the outer peripheral diameter D2 of the valve stem cap 122 is between 40mm and 50mm, e.g., equal to 47 mm. Therefore, when the air passes through, the deformation amplitude of the outer peripheral portion of the valve stem seal 13 against the valve stem cap 122 is relatively large, so that the air flows more smoothly, thereby effectively reducing the noise during the operation of the air pump.

Preferably, in order to further ensure the smoothness of the gas flow, as shown in fig. 6, the stem cap 122 may have a circumferential outer end face 123 parallel to the stem shaft 121, and the stem seal 13 is shaped to abut against the circumferential outer end face 123 so that an edge portion of the stem seal 13 is deformed against the circumferential outer end face 123 when the gas passes through.

It is also preferred that the parameters of the springs 14 can be optimized for better noise reduction. According to one embodiment, the axial length of the spring 14 is between 40mm and 50mm, for example equal to 44mm, the spring wire diameter is between 0.8mm and 1.2mm, for example equal to 1.0mm, and the pitch is between 2mm and 3mm, for example equal to 2.6 mm.

It is also preferred that the air pump according to the present invention may further comprise an air deflector 11 arranged downstream of the impeller 9 in the pump housing 7, more particularly in the above-mentioned pressurized chamber. As shown in fig. 7, the wind guide wheel 11 includes a wheel body 111 and a plurality of wind guide plates 112 radiating in a spiral shape. The wheel body 111 is provided with a central hole 113 through which the rotating shaft 802 of the motor 8 passes, and a plurality of air guide plates 112 are provided in a circumferential array on a downstream surface (i.e., a surface opposite to the impeller 9) of the wheel body 111, preferably integrally formed with the wheel body 111, and extend from a circumferential edge of the wheel body 111 toward the central hole 113. The gaps between the adjacent air guiding sheets 112 form air ducts, the air inlets of the air ducts are located at the circumferential edge of the wheel body 111, and the air outlets are close to the central hole 113. Therefore, the gas pressurized by the impeller 9 enters the air duct from the circumferential edge of the wheel body 111, so that the gas output from the air duct is spiral, which can effectively reduce the gas resistance and make the gas output more uniform, thereby reducing the operation noise of the motor 8. In addition, the wheel body 111 may be provided with a plurality of fixing holes 114 around the edge of the central hole 113, such as two fixing holes 114 shown symmetrical with respect to the central hole 113, the fixing holes 114 being, for example, countersunk holes for positioning and fixing the wheel body 111 with respect to the motor housing 801.

The technical content and technical features of the present invention have been disclosed above, but it should be understood that various changes and modifications of the concept disclosed above can be made by those skilled in the art under the inventive concept of the present invention, and all fall within the scope of the present invention. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.

Claims

1. An air pump for an above-ground water pool, comprising a pump housing, a motor and an impeller provided in the pump housing, and an outlet pipe connected with the pump housing so as to be adapted to output gas to the water pool, wherein at least one check valve is provided in the outlet pipe, characterized in that the check valve comprises a valve stem and a valve stem seal, the valve stem comprises a valve stem shaft and a valve stem cap provided at one end of the valve stem shaft, the valve stem seal is fitted over the valve stem cap, and a peripheral edge of the valve stem seal is arranged to contact an inner wall of the outlet pipe when no gas passes through, wherein a ratio of a peripheral diameter of the valve stem seal to a peripheral diameter of the valve stem cap is at least 1.1.

2. The air pump for an above-ground pool of water of claim 1, wherein the ratio of the outer peripheral diameter of said valve stem seal to the outer peripheral diameter of said valve stem cap is at least 1.2.

3. The air pump for an above-ground pool of water of claim 1, wherein said valve stem cap has a circumferentially outer end face parallel to said valve stem shaft, and said valve stem seal is shaped to abut against the circumferentially outer end face.

4. The air pump for an above-ground pool of water of any one of claims 1 to 3, further comprising an air inducer disposed downstream of the impeller in the pump housing.

5. The air pump for the above-ground water pool according to claim 4, wherein the air guide wheel comprises a wheel body and a plurality of air guide plates in a spiral radial shape, the wheel body is provided with a central hole for a rotating shaft of the motor to pass through, the air guide plates are arranged on the downstream surface of the wheel body in a circumferential array mode and extend from the circumferential edge of the wheel body towards the central hole, and air channels are formed in gaps between adjacent air guide plates.

6. The air pump for an above-ground pool of water of claim 5, wherein the air-guiding plate is integrally formed with the wheel body.

7. An air pump for an above-ground pool of water according to claim 5, wherein the wheel body is provided with a plurality of fixing holes around the edge of the central hole.

8. An above ground pool comprising an air pump for an above ground pool according to any one of claims 1 to 7.

9. The above-ground pool of claim 8, wherein said above-ground pool is a pneumatic or scaffolding pool.