CN221170120U

CN221170120U - Conduit fitting of household self-priming pump

Info

Publication number: CN221170120U
Application number: CN202323327196.9U
Authority: CN
Inventors: 方清南
Original assignee: Zhejiang Yinteyang Pump Industry Co ltd
Current assignee: Zhejiang Yinteyang Pump Industry Co ltd
Priority date: 2023-12-05
Filing date: 2023-12-05
Publication date: 2024-06-18
Anticipated expiration: 2033-12-05

Abstract

The application relates to a conduit fitting of a household self-priming pump, and belongs to the technical field of household self-priming pumps. In order to solve the technical problem that the external sealing performance of the conduit fitting is not strong; the technical scheme is characterized by comprising a catheter main body and a first sealing ring, wherein the catheter main body comprises a water inlet section, a first sealing section, a flow guiding section and a water outlet section, the catheter main body is provided with a hollow inner cavity, the side wall of the water inlet section is provided with a through hole communicated with the inner cavity, the outer side wall of the first sealing section is provided with a wide bottom groove, the first sealing ring is assembled on the wide bottom groove and is of a flat belt-shaped structure, two ends of the first sealing ring are abutted against the side wall of the wide bottom groove, the water outlet section is provided with an annular seat, and the annular seat is provided with a second sealing ring, and the novel water heater comprises the following components: the assembly is simple, the processing is easy, and the sealing effect is outstanding.

Description

Conduit fitting of household self-priming pump

Technical Field

The application relates to the technical field of household self-priming pumps, in particular to a conduit fitting of a household self-priming pump.

Background

At present, the household self-priming pump is suitable for various application fields, such as cleaning water, cooling circulation systems, spray humidification and the like. Meanwhile, the structure, materials and functions of the pump can be correspondingly adjusted and optimized according to the characteristics of different fields. The structure of the household self-priming pump mainly comprises a pump body, an impeller, a pump cover, a pump shaft, a bearing seat, a mechanical seal, a transmission device and the like. The working principle is that the negative pressure is formed in the pump body by utilizing the air pressure difference in the pump body, so that the liquid is sucked into the pump body. Specifically, when the impeller rotates at a high speed, the centrifugal force generated pushes the liquid to the outlet pipe, and a low-pressure area is formed at the same time, so that the liquid is sucked into the pump from the pipeline, and the self-priming process is completed.

The conduit fitting of the household self-priming pump is usually arranged on an inlet and outlet pipeline of the pump, and the specific position is required to be determined according to the structure and the practical application scene of the pump. In general, inlet and outlet pipes of self-priming pumps are provided with special connectors, and conduit fittings need to be in sealing connection with the connectors so as to ensure the normal operation of the pump.

When the pipe fitting is installed, the problem that the external sealing performance of the pipe fitting can be weak is caused by the fact that the O-shaped sealing ring is adopted as the external sealing ring of the pipe fitting, liquid leakage easily occurs after assembly, and the working efficiency of the pump is reduced or faults occur due to poor connection is found.

Disclosure of utility model

In view of the above-described drawbacks (problems) of the prior art, the present application provides a conduit fitting for a self-priming pump for home use in order to be able to improve assembly reliability, sealing ability and connection reliability.

In order to achieve the above and other related objects, the present application adopts the following technical scheme: the utility model provides a domestic self priming pump's pipe accessory, includes pipe main part and first sealing washer, pipe main part includes section of intaking, first sealed section, water conservancy diversion section and play water section, pipe main part has the cavity inner chamber, and the lateral wall of section of intaking is provided with the opening with the inner chamber intercommunication, and the lateral wall of first sealed section is provided with wide kerve, assembles on the wide kerve first sealing washer, and first sealing washer is flat ribbon form structure to both ends support tightly on the lateral wall of wide kerve, are provided with the annular seat on the water section, be provided with the second sealing washer on the annular seat.

Through adopting above-mentioned technical scheme, the section of intaking is used for intaking, and water gets into from the section port of intaking, perhaps can get into from the through-hole, carries out the water conservancy diversion through hollow inner chamber, avoids the leakage on the assembly, then utilizes first sealing washer and second sealing washer to be used for the assembly to seal, and first sealing washer flat ribbon structure compares in "O" shape circle, then has bigger sealed area of contact, can be resistant to wear, increase of service life, the sealing washer is difficult for breaking away from and not hard up on its respective assembly position to the reliability of use has been improved greatly.

Optionally, the hollow inner cavity is provided with a flow guiding surface and a reducing channel, the flow guiding surface is in a horn mouth shape, the rear end of the flow guiding surface is at the position with the minimum caliber, the position with the minimum caliber of the flow guiding surface is connected with the initial position of the reducing channel, and the reducing channel gradually increases in caliber towards the water flow direction.

Through adopting above-mentioned technical scheme, the water flow can be guided to the water conservancy diversion face, reduces the resistance, makes fluid (water) velocity of flow the biggest in minimum bore department through the water conservancy diversion face, then adjusts the velocity of flow through the bore of continuous gradual change to satisfy the design demand.

Optionally, the length of the reducing channel is 5-7 times that of the inlet of the reducing channel, and the diameter of the outlet of the reducing channel is 1.5-1.6 times that of the inlet of the reducing channel.

Through adopting above-mentioned technical scheme, in order to effectively adjust the velocity of flow of rivers to make the pipe fitting miniaturized, thereby tried out this proportion size through continuous test, be that the comparison is miniaturized, can let the input and output that the water velocity of flow is more stable.

Optionally, the water inlet section is straight tube-shape, and the opening is square structure and evenly distributed has at least 3.

Through adopting above-mentioned technical scheme, straight tubular structure intensity is higher, can support moreover, and the through-hole of a plurality of square structures can let rivers more get into.

Optionally, the diversion section is located between the first sealing section and the water outlet section, and ribs are arranged and evenly distributed in the circumferential direction.

By adopting the technical scheme, because the reducing causes the water flow to have pressure on the pipe wall, the structural strength can be improved through the ribs under the condition that the thickness of the pipe wall is kept consistent.

Optionally, an inner groove is arranged on one side, facing the water outlet, of the annular seat, and the inner groove is matched and complemented with the second sealing ring.

Through adopting above-mentioned technical scheme, in order to let the installation of second sealing washer more stable, then further improve the firm degree of assembly through the inside groove.

Optionally, the outer side surface of the first sealing ring is a corrugated surface.

Through adopting above-mentioned technical scheme, because first sealing washer lateral surface area is great, through the ripple face, can improve the easy degree of assembly, the ripple face is out of shape easily to be convenient for sliding fit reduces frictional resistance, also forms the contact surface of multichannel seal simultaneously, compares in the seal of face contact, then can be very easy on this structure assembly, and sealed effect also satisfies needs moreover.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The structure adopts a wide bottom groove and a first sealing ring to promote the sealing contact area, and a second sealing ring is added to carry out up-down double sealing, so that the sealing assembly reliability is improved;

2. the installation is easy, the sleeving mode is adopted, the processing production efficiency is improved structurally, and the structure is easy to process;

3. The structure intensity is high, materials are saved, the design is miniaturized, the household requirement is met, and the service life is long.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present application.

Fig. 2 is an end view schematic of an embodiment of the present application.

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 in accordance with the present application;

Fig. 4 is a schematic structural view of the second embodiment, mainly illustrating the corrugated surface.

Reference numerals of main components are explained:

1. A catheter body; 11. a water inlet section; 111. a through port; 12. a first seal segment; 121. a wide bottom groove; 13. a diversion section; 131. ribs; 14. a water outlet section; 141. an annular seat; 142. an inner tank; 15. a hollow interior cavity; 151. a flow guiding surface; 152. a variable diameter channel; 2. a first seal ring; 3. a second seal ring; 4. corrugated surfaces.

Detailed Description

Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and the illustrations only show the components related to the present application, not the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

The following describes the application in more detail with reference to fig. 1 to 4.

Embodiment one:

A conduit fitting for a domestic self-priming pump, as shown with reference to figures 1, 2 and 3, comprises a conduit body 1 and a first sealing ring 2. The pipe main body 1 comprises a water inlet section 11, a first sealing section 12, a flow guiding section 13 and a water outlet section 14, the pipe main body 1 is provided with a hollow inner cavity 15, the side wall of the water inlet section 11 is provided with a through hole 111 communicated with the inner cavity, the outer side wall of the first sealing section 12 is provided with a wide bottom groove 121, a first sealing ring 2 is assembled on the wide bottom groove 121, the first sealing ring 2 is of a flat belt-shaped structure, two ends of the first sealing ring are abutted against the side wall of the wide bottom groove 121, an annular seat 141 is arranged on the water outlet section 14, and a second sealing ring 3 is arranged on the annular seat 141.

By adopting the scheme, the use process and the effect are as follows, the water inlet section 11 is used for water inlet, and water enters from the port of the water inlet section 11 or can enter from the through hole 111 and flow guide is carried out through the hollow inner cavity 15. According to the scheme, the sealed liquid leakage in assembly can be avoided, the first sealing ring 2 and the second sealing ring 3 are used for assembly sealing, the flat belt-shaped structure of the first sealing ring 2 is compared with an O-shaped ring, the sealing contact area is larger, the wear resistance is improved, the service life is prolonged, and the sealing rings are not easy to separate and loosen at the respective assembly positions, so that the reliability of use is greatly improved.

In fig. 3, the hollow inner cavity 15 is provided with a flow guiding surface 151 and a reducing channel 152, the flow guiding surface 151 is in a horn mouth shape, and the minimum caliber of the flow guiding surface 151 is connected with the initial position of the reducing channel 152, and the diameter of the reducing channel 152 gradually increases towards the water flow direction.

Through adopting above-mentioned technical scheme, the water flow can be guided to the water conservancy diversion face 151, reduces the resistance, makes fluid (water) velocity of flow the biggest in minimum bore department through the water conservancy diversion face 151, then adjusts the velocity of flow through the bore of continuous gradual change to satisfy the design demand. The minimum caliber is D1, the maximum caliber is D2, and the length of the reducing channel 152 is L1.

Further, the length L1 of the reducing channel 152 is 5-7 times the inlet D1 of the reducing channel 152, and the outlet diameter D2 of the reducing channel 152 is 1.5-1.6 times the inlet diameter D1 of the reducing channel 152. In order to effectively adjust the flow rate of water flow and miniaturize the conduit fitting, the ratio is tried out through continuous experiments, and the flow rate of water body can be input and output relatively stably.

In this scheme, the water inlet section 11 is straight tube-shape, and the through-hole 111 is square structure and evenly distributed has at least 3. The straight tubular structure has higher strength and can support, and the plurality of square through holes 111 can allow more water flow to enter.

The diversion section 13 is located between the first sealing section 12 and the water outlet section 14, and is provided with ribs 131, and the ribs 131 are uniformly distributed in the circumferential direction. The ribs 131 can be used to increase the structural strength of the pipe wall when the thickness of the pipe wall is consistent due to the pressure of the water flow on the pipe wall caused by the diameter change.

An inner groove 142 is arranged on one side of the annular seat 141 facing the water outlet, and the inner groove 142 is matched and complemented with the second sealing ring 3. In order to make the second seal ring 3 more stable to be mounted, the assembly firmness is further improved by the inner groove 142.

Embodiment two:

Referring to fig. 4, the difference from the first embodiment is that: the outer side of the first sealing ring 2 is provided with a corrugated surface 4. Because the area of the outer side surface of the first sealing ring 2 is larger, the assembly easiness can be improved through the corrugated surface 4, the corrugated surface 4 is easy to deform, so that sliding assembly is facilitated, friction resistance is reduced, a plurality of sealing contact surfaces are formed simultaneously, and compared with surface contact sealing, the structure is very easy to assemble, and the sealing effect is also satisfied.

The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a domestic self priming pump's pipe accessory, includes pipe main part (1) and first sealing washer (2), its characterized in that: the catheter body (1) comprises a water inlet section (11), a first sealing section (12), a flow guiding section (13) and a water outlet section (14), the catheter body (1) is provided with a hollow inner cavity (15), the side wall of the water inlet section (11) is provided with a through hole (111) communicated with the inner cavity, the outer side wall of the first sealing section (12) is provided with a wide bottom groove (121), the first sealing ring (2) is assembled on the wide bottom groove (121), the first sealing ring (2) is of a flat belt-shaped structure, two ends of the first sealing ring are abutted against the side wall of the wide bottom groove (121), an annular seat (141) is arranged on the water outlet section (14), and a second sealing ring (3) is arranged on the annular seat (141).

2. The catheter fitting for a home self-priming pump of claim 1, wherein: the hollow inner cavity (15) is provided with a diversion surface (151) and a reducing channel (152), the diversion surface (151) is in a horn mouth shape, the rear end of the diversion surface is at the position with the minimum caliber, the position with the minimum caliber of the diversion surface (151) is connected with the initial position of the reducing channel (152), and the reducing channel (152) gradually increases in caliber towards the water flow direction.

3. The catheter fitting of a household self-priming pump of claim 2, wherein: the length of the reducing channel (152) is 5-7 times that of the inlet of the reducing channel (152), and the outlet diameter of the reducing channel (152) is 1.5-1.6 times that of the inlet of the reducing channel (152).

4. The catheter fitting for a home self-priming pump of claim 1, wherein: the water inlet section (11) is in a straight cylinder shape, and the through holes (111) are in a square structure and are uniformly distributed with at least 3.

5. The catheter fitting for a home self-priming pump of claim 1, wherein: the diversion section (13) is positioned between the first sealing section (12) and the water outlet section (14), and is provided with ribs (131), and the ribs (131) are uniformly distributed in the circumferential direction.

6. The catheter fitting for a home self-priming pump of claim 1, wherein: an inner groove (142) is formed in one side, facing the water outlet, of the annular seat (141), and the inner groove (142) is matched and complemented with the second sealing ring (3).

7. The catheter fitting for a home self-priming pump of claim 1, wherein: the outer side surface of the first sealing ring (2) is provided with a corrugated surface (4).