Novel axial flow pump pipe of closestool
By incorporating a flow tube and pump impeller into the toilet axial flow pump pipe, and using Teflon gasket and right-angle bend design, the existing toilet axial flow pump pipe is solved in terms of manufacturing cost, assembly efficiency and durability. It achieves low-cost and efficient toilet flushing effect and long life.
Patent Information
- Application Number
- CN202420944211.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The axial flow pump pipes of existing toilets have shortcomings in terms of manufacturing cost, assembly efficiency, processing difficulty and durability, especially the high cost and complex structure of submersible pumps, which lead to expensive and difficult installation.
A new type of toilet axial flow pump pipe was designed. By inserting a flow guide cylinder, pump impeller and coupling into the water inlet pipe, and installing it through the water inlet end cover, the concentricity requirement between the coupling and the pump blade is reduced. , adopting Teflon gasket and right-angle bending design, reduces the processing difficulty and cost of components, while increasing the impact force and flow rate of the water flow.
It realizes axial flow pump pipe with simple structure, convenient assembly, low cost and strong durability, which improves the flushing effect and service life of the toilet and reduces the difficulty of manufacturing and installation.
Smart Images
Figure CN222206645U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of toilets, and in particular relates to a novel axial flow pump tube of a toilet. Background Art
[0002] The toilet is a sanitary appliance in the field of building water supply and drainage materials. The toilet is a toilet characterized by the human body sitting in the toilet. It can be divided into direct flushing type and siphon type according to the flushing method (the siphon type is further divided into jet siphon type and vortex siphon type). According to the structural form, it can be divided into split type, one-piece type, wall-mounted type, direct flushing type, and siphon type.
[0003] Existing toilets all use a combination of an open water tank and a submersible pump, which makes it easy to assemble the pump body in the water tank, thereby achieving the effect of pumping and flushing water. Since the submersible pump needs to be placed in the water tank, it is relatively small in size and generates less suction force. Since it requires waterproof and other designs, the price is relatively high. The applicant's prior patent CN117721886A discloses a toilet embedded water tank flushing device, which uses an axial flow pump as a driving mechanism, thereby reducing costs, increasing water flow speed and impulse, and improving the flushing effect of the toilet. However, through actual application, it is found that there is still a need to improve the manufacturing cost, assembly efficiency, processing difficulty, durability, etc. The purpose of this application is to provide an axial flow pump tube with low manufacturing cost, simple structure, good durability, and easy assembly. Utility Model Content
[0004] The utility model provides a novel axial flow pump pipe for a toilet, which can effectively solve the above problems.
[0005] The utility model is achieved in this way:
[0006] A novel axial flow pump pipe for a toilet comprises an inlet pipe and an outlet pipe, wherein the inlet pipe and the outlet pipe are connected at an obtuse angle, the inlet pipe is arranged vertically, and the outlet pipe is provided with a through hole corresponding to the axial center position of the inlet pipe; a guide tube, a pump impeller, a coupling and an inlet end cover are arranged in the inlet pipe, a limiting convex ring is arranged at the upper end of the inlet pipe, the limiting convex ring is provided with a limiting convex, and the guide tube is provided with a limiting groove corresponding to the limiting convex; the inlet end cover is threadedly connected with the lower end of the inlet pipe, the guide tube is arranged between the limiting convex ring and the inlet end cover, and the limiting convex is connected with the limiting groove; an axial hole is arranged at the upper end of the shaft seat of the pump impeller, and an axle rod is arranged at the lower end, a slot hole is arranged at the center of the inlet end cover, and the pump impeller is arranged between the guide tube and the slot hole; the coupling is connected with the axial hole through the through hole, and the axle rod is connected with the slot hole; at least two mutually stacked gaskets are arranged between the pump impeller and the inlet end cover.
[0007] As a further improvement, the gasket is a Teflon gasket, the angle between the water inlet pipe and the water outlet pipe is not less than 120°, and there is a right-angle bend between the water inlet pipe and the water outlet pipe.
[0008] As a further improvement, the water inlet pipe is connected to the external thread of the water inlet end cover via an internal thread, the pump impeller is arranged in the water inlet end cover, the upper end of the water inlet end cover abuts against the lower end of the guide tube, and the inner diameters of the limiting convex ring, the guide tube and the water inlet end cover are the same.
[0009] As a further improvement, the guide tube is provided with an outer tube, a guide vane and a center sleeve, the center sleeve is arranged at the center of the outer tube, the guide vane is fixed between the outer tube and the center sleeve, and the guide vane is a spiral vane; the coupling passes through the center sleeve, and the rotation direction of the guide vane is opposite to the rotation direction of the blades of the pump impeller.
[0010] As a further improvement, the coupling is gap-connected with the through hole, the center sleeve, and the shaft hole.
[0011] As a further improvement, at least one cooling hole is provided on the bottom side of the slot.
[0012] As a further improvement, the upper end of the guide tube is connected to the lower end of the water outlet pipe.
[0013] As a further improvement, the angle between the water inlet pipe and the water outlet pipe is 120°-165°.
[0014] As a further improvement, a mounting plate is provided at the upper end of the water outlet pipe, and the water outlet pipe passes through the mounting plate for connection; a support plate is provided above the water inlet pipe, and the support plate is arranged between the mounting plate and the water outlet pipe; the water inlet pipe, water outlet pipe, support plate and mounting plate are integrally formed.
[0015] As a further improvement, an exhaust hole is provided on the side of the water outlet pipe, and the exhaust hole is arranged close to the bottom of the mounting plate.
[0016] The beneficial effects of the utility model are as follows: the guide tube, pump impeller, and coupling are built into the water inlet pipe, and are limitedly installed through the water inlet end cover. The coupling can be connected with the guide tube and pump impeller by plugging, without interference connection, which not only reduces the difficulty of installation, but also reduces the concentricity requirements between the coupling and the pump impeller, and also reduces the difficulty of processing components; the outlet pipe and the water inlet pipe form an obtuse angle connection relationship, and the outflowing water flow is guided by the guide tube to directly enter the outlet pipe and flow out, converting the rotating water flow formed by the pump impeller into the water flow in the axial direction of the outlet pipe, enhancing the impact force of the straight water flow of the outlet pipe, and forming an unobstructed downstream channel between the inlet pipe and the outlet pipe. The application has a simple structure, convenient assembly, low cost, strong durability, and is conducive to popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram provided by an embodiment of an axial flow pump tube of a new toilet of the utility model;
[0019] Figure 2 It is a cross-sectional view provided by an embodiment of an axial flow pump tube of a new toilet of the utility model;
[0020] Figure 3 yes Figure 2 A three-dimensional model diagram corresponding to the cross-sectional view;
[0021] Figure 4 It is an exploded schematic diagram provided by an embodiment of an axial flow pump tube of a new toilet of the utility model;
[0022] Figure 5 It is another exploded schematic diagram provided by an embodiment of an axial flow pump tube of a novel toilet of the utility model;
[0023] Figure 6 This is a schematic diagram of the internal structure of the water inlet pipe provided by an axial flow pump pipe embodiment of a new toilet of the utility model;
[0024] Figure 7 It is a schematic diagram of partial structural assembly provided by an axial flow pump pipe embodiment of a new toilet of the utility model;
[0025] Figure 8 It is a partial structural schematic diagram provided by an embodiment of an axial flow pump tube of a new toilet of the utility model;
[0026] Fig. 9 It is a schematic diagram of the water inlet end cover structure provided by an axial flow pump pipe embodiment of a new toilet of the utility model;
[0027] Fig.10 It is an application schematic diagram provided by an embodiment of an axial flow pump tube of a new toilet of the utility model.
[0028] Reference numerals:
[0029] Inlet pipe 1; limiting convex ring 11; limiting convex 12; outlet pipe 2; perforation 21; exhaust hole 22; guide tube 3; limiting groove 31; outer tube 32; guide plate 33; center sleeve 34; pump impeller 4; shaft hole 41; shaft rod 42; coupling 5; water inlet end cover 6; slot hole 61; cooling hole 62; gasket 7; mounting plate 8; support plate 81. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.
[0031] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0032] In the description of the present invention, the terms "upper", "middle", "side", "side", "upper side", "end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0033] Reference Figure 1-10As shown, a novel axial flow pump pipe of a toilet comprises an inlet pipe 1 and an outlet pipe 2, wherein the inlet pipe 1 and the outlet pipe 2 are connected at an obtuse angle, the inlet pipe 1 is vertically arranged, and the outlet pipe 2 is provided with a perforation 21 corresponding to the axial position of the inlet pipe 1; a guide tube 3, a pump impeller 4, a coupling 5 and an inlet end cover 6 are arranged in the inlet pipe 1, a limiting convex ring 11 is arranged at the upper end of the inlet pipe 1, and a limiting convex 12 is arranged around the limiting convex 11, and a limiting groove 31 is arranged on the guide tube 3 corresponding to the limiting convex 12; the inlet end cover 6 It is threadedly connected to the lower end of the water inlet pipe 1, and the guide tube 3 is arranged between the limiting convex ring 11 and the water inlet end cover 6, and the limiting convex 12 is connected to the limiting groove 31; the upper end of the shaft seat of the pump impeller 4 is provided with an axial hole 41, and the lower end is provided with a shaft rod 42, the center of the water inlet end cover 6 is provided with a slot hole 61, and the pump impeller 4 is arranged between the guide tube 3 and the slot hole 61; the coupling 5 passes through the through hole 21 and is connected to the axial hole 41, and the shaft rod 42 is connected to the slot hole 61; at least two gaskets 7 stacked on each other are provided between the pump impeller 4 and the water inlet end cover 6.
[0034] The obtuse angle connection setting of the water inlet pipe 1 and the water outlet pipe 2 can reduce the deceleration effect caused by the turning of the water flow. The guide tube 3 is limited in the water inlet pipe 1 by the limiting convex ring 11 and the water inlet end cover 6, and guides the water flow entering the pump impeller 4 by rotation; the pump impeller 4 is provided with a circumferential axis hole 41 at the upper end and a shaft 42 at the lower end, and the shaft 42 and the slot 61 play the role of the central rotating shaft, and form a downward pressure when the pump impeller 4 rotates, thereby reducing the concentricity requirements between the coupling 5 and the pump impeller 4, reducing the processing requirements of the components, and saving costs; by providing at least two mutually stacked gaskets 7 between the pump impeller 4 and the water inlet end cover 6, the friction between the gasket 7 and the pump impeller 4 and the water inlet end cover 6 is reduced. Since the friction coefficient between the gasket 7 and the pump impeller 4 and the water inlet end cover 6 is large, it is easier to generate friction between the gasket 7 during rotation, reducing the wear of the pump impeller 4 and the water inlet end cover 6, and improving the service life.
[0035] The water inlet end cover 6 is provided with a water inlet mesh.
[0036] Furthermore, the gasket 7 is a Teflon gasket 7, the angle between the water inlet pipe 1 and the water outlet pipe 2 is not less than 120°, and there is a right angle bend between the water inlet pipe 1 and the water outlet pipe 2. Preferably, two Teflon gaskets 7 are arranged between the pump impeller 4 and the water inlet end cover 6.
[0037] The present application can meet the requirements by using Teflon gasket 7 without using expensive ceramic gasket 7, thus reducing product cost.
[0038] The angle setting can ensure the flow rate and impact force of the water flow, and the right-angle bend design can allow the water to directly enter the outlet pipe 2 after being guided by the guide tube 3, and compared with the arc design, the mold cost is lower.
[0039] Furthermore, the water inlet pipe 1 is connected to the external thread of the water inlet end cover 6 via an internal thread, the upper end of the water inlet end cover 6 abuts against the lower end of the guide tube 3, the pump impeller 4 is arranged in the water inlet end cover 6, and the inner diameters of the limiting convex ring 11, the guide tube 3 and the water inlet end cover 6 are the same.
[0040] The water inlet pipe 1 is connected to the external thread of the water inlet end cover 6 through the internal thread, and the pump impeller 4 is arranged in the water inlet end cover 6, which reduces the overall structure volume. The same inner diameter setting can reduce the deceleration effect on the water flow.
[0041] Furthermore, the guide cylinder 3 is provided with an outer cylinder 32, a guide vane 33 and a center sleeve 34, the center sleeve 34 is arranged at the center of the outer cylinder 32, the guide vane 33 is fixed between the outer cylinder 32 and the center sleeve 34, and the guide vane 33 is a spiral vane; the coupling 5 passes through the center sleeve 34, and the rotation direction of the guide vane 33 is opposite to the rotation direction of the blades of the pump impeller 4.
[0042] By setting up the outer cylinder 32 structure, the water flow is confined within the outer cylinder 32, so that the large water flow speed away from the center is guided into the outlet pipe 2 through the guide cylinder 3; the rotation direction of the guide plate 33 is opposite to the rotation direction of the blades of the pump impeller 4. During operation, the guide cylinder 3 and the pump impeller 4 are separated from each other to avoid relative friction deceleration and form a gap.
[0043] Furthermore, the coupling 5 is gap-connected with the through hole 21 , the center sleeve 34 , and the shaft hole 41 .
[0044] The clearance connection refers to the connection position of the coupling 5 corresponding to the through hole 21 , the center sleeve 34 , and the shaft hole 41 , and the outer dimension of the coupling 5 is slightly smaller than the inner dimension of the through hole 21 , the center sleeve 34 , and the shaft hole 41 .
[0045] Furthermore, at least one cooling hole 62 is provided on the bottom side of the slot 61 .
[0046] The shaft 42 can be cooled to improve its service life.
[0047] Furthermore, the upper end of the guide tube 3 is connected to the lower end of the water outlet pipe 2 , so that the water flow guided by the guide tube 3 directly enters the water outlet pipe 2 .
[0048] Furthermore, the angle between the water inlet pipe 1 and the water outlet pipe 2 is 120°-165°.
[0049] The setting of the angle, on the one hand, reduces the influence of flow velocity and impact force caused by the turn, and on the other hand, avoids the obstruction of water flow caused by the coupling being too long in the outlet pipe 2.
[0050] This angle can ensure that the guide vane 33 has a better angle setting and ensure that the stall reduction effect from the water inlet pipe 1 to the water outlet pipe 2 is small.
[0051] Furthermore, a mounting plate 8 is provided at the upper end of the water outlet pipe 2, and the water outlet pipe 2 passes through the mounting plate 8 for connection; a support plate 81 is provided above the water inlet pipe 1, and the support plate 81 is arranged between the mounting plate 8 and the water outlet pipe 2; the water inlet pipe 1, the water outlet pipe 2, the support plate 81 and the mounting plate 8 are integrally formed.
[0052] The mounting plate 8 is used for mounting the overall structure on the one hand, and can ensure the stability of the overall structure on the other hand.
[0053] Furthermore, an exhaust hole 22 is provided on the side of the water outlet pipe 2 , and the exhaust hole 22 is arranged close to the bottom of the mounting plate 8 .
[0054] When the axial flow pump tube is extended into a closed water tank, the exhaust hole 22 is helpful for exhausting the air in the water outlet pipe 2.
[0055] When in use, the motor is installed on the mounting plate 8 above the water inlet pipe 1, and the rotating shaft of the motor is connected to the coupling 5 through a connector to achieve linkage; the outlet of the water outlet pipe 2 is connected to the liquid distributor, and the liquid distributor is provided with an upper punch and a lower punch.
[0056] The axial flow pump tube of the present application can meet the durability test requirement of more than 500,000 revolutions, which is much higher than the existing requirements of the same type of structures of more than 100,000 or 200,000 revolutions.
[0057] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A new type of axial flow pump pipe for toilet, characterized in that: The invention comprises an inlet pipe and an outlet pipe, wherein the inlet pipe and the outlet pipe are connected at an obtuse angle, the inlet pipe is arranged vertically, and the outlet pipe is provided with a through hole corresponding to the axial position of the inlet pipe; a guide tube, a pump impeller, a coupling and an inlet end cover are arranged in the inlet pipe, a limiting convex ring is arranged at the upper end of the inlet pipe, the limiting convex ring is provided with a limiting convex, and the guide tube is provided with a limiting groove corresponding to the limiting convex; the inlet end cover is threadedly connected with the lower end of the inlet pipe, the guide tube is arranged between the limiting convex ring and the inlet end cover, and the limiting convex is connected with the limiting groove; an axial hole is arranged at the upper end of the shaft seat of the pump impeller, and a shaft rod is arranged at the lower end, a slot hole is arranged at the center of the inlet end cover, and the pump impeller is arranged between the guide tube and the slot hole; the coupling is connected with the axial hole through the through hole, and the shaft rod is connected with the slot hole; at least two mutually stacked gaskets are arranged between the pump impeller and the inlet end cover.
2. The novel axial flow pump tube for toilet according to claim 1, characterized in that: The gasket is a Teflon gasket, the angle between the water inlet pipe and the water outlet pipe is not less than 120°, and there is a right-angle bend between the water inlet pipe and the water outlet pipe.
3. The axial flow pump tube of a new toilet according to claim 1, characterized in that: The water inlet pipe is connected to the external thread of the water inlet end cover through an internal thread, the pump impeller is arranged in the water inlet end cover, the upper end of the water inlet end cover abuts against the lower end of the guide tube, and the inner diameters of the limiting convex ring, the guide tube and the water inlet end cover are the same.
4. The novel axial flow pump tube for toilet according to claim 1, characterized in that: The guide cylinder is provided with an outer cylinder, a guide vane and a central sleeve. The central sleeve is arranged at the center of the outer cylinder. The guide vane is fixed between the outer cylinder and the central sleeve. The guide vane is a spiral vane. The coupling passes through the central sleeve. The rotation direction of the guide vane is opposite to the rotation direction of the blades of the pump impeller.
5. A novel axial flow pump tube for a toilet according to claim 1 or 4, characterized in that: The coupling is gap-connected with the through hole, the center sleeve and the shaft hole.
6. The novel axial flow pump tube for toilet according to claim 1, characterized in that: At least one cooling hole is arranged on the bottom side of the slot hole.
7. A novel axial flow pump tube for a toilet according to claim 1 or 4, characterized in that: The upper end of the guide tube is connected to the lower end of the water outlet pipe.
8. The novel axial flow pump tube for toilet according to claim 1, characterized in that: The included angle between the water inlet pipe and the water outlet pipe is 120°-165°.
9. The novel axial flow pump tube for toilet according to claim 1, characterized in that: A mounting plate is provided at the upper end of the water outlet pipe, and the water outlet pipe penetrates the mounting plate for connection; a support plate is provided above the water inlet pipe, and the support plate is arranged between the mounting plate and the water outlet pipe; the water inlet pipe, the water outlet pipe, the support plate and the mounting plate are integrally formed.
10. A novel axial flow pump tube for a toilet according to claim 1 or 9, characterized in that: An exhaust hole is arranged on the side of the water outlet pipe, and the exhaust hole is arranged close to the bottom of the mounting plate.