CN219452490U - Water pump sealing structure and water pump - Google Patents
Water pump sealing structure and water pump Download PDFInfo
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- CN219452490U CN219452490U CN202320819534.1U CN202320819534U CN219452490U CN 219452490 U CN219452490 U CN 219452490U CN 202320819534 U CN202320819534 U CN 202320819534U CN 219452490 U CN219452490 U CN 219452490U
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Abstract
The utility model provides a water pump sealing structure and a water pump, which relate to the technical field of sealing structures and aim at solving the technical problem of poor sealing performance in the prior art, wherein the device comprises a first sealing structure, a second sealing structure and a sealing main body, the first sealing structure comprises a first body and a first extension part arranged on the first body, and a first sealing groove is arranged in the first extension part; the second sealing structure comprises a second body and a second extension part arranged on the second body, and a second sealing groove is arranged in the second extension part; the inside of the sealing main body is provided with a first groove structure and a second groove structure which are communicated; the first body is arranged in the first groove structure, and the first extension part extends into the second groove structure; the second body is in butt joint with the end part of the sealing main body, the second extension part stretches into a motor shaft outlet arranged on the pump shell, and the motor shaft sequentially passes through the first groove structure, the first sealing groove, the second groove structure and the second sealing groove and then stretches out of the motor shaft outlet.
Description
Technical Field
The utility model relates to the technical field of sealing structures, in particular to a water pump sealing structure and a water pump.
Background
The water pump is a machine for delivering or pressurizing liquid, and can also be used for delivering liquid, gas mixture and liquid containing suspended solids, and the water pump transmits mechanical energy of a prime motor or other external energy to the liquid, so that the energy of the liquid is increased, and the application is very wide.
At present, a water pump, in particular a miniature water pump, generally adopts a one-way sealing ring, adopts a single-phase sealing ring motor to rotate at a high speed and then generates heat, so that the air volume of the motor in a machine cavity expands, the water pump is used in water, and because of the principle of expansion with heat and contraction with cold, the pressure difference between the inside and outside of the machine cavity is inconsistent, and the water pump can generate heat and expand gas in the process of rotating at a high speed. The patent names are as follows: a water pump sealing device has the application number: CN201922240623.7, publication number: chinese patent of CN211144890U discloses multistage sealing of a rotating shaft by sleeving a first sealing block and a second sealing block in ring shape on the outer surface of the rotating shaft. Under the high temperature state, the air in the machine cavity is easy to leak and discharge through the sealing ring, and when the water pump is placed in water for stopping and waiting, the air in the water pump is easy to shrink rapidly, and the inward adsorption force sucks water flow into the machine cavity, so that the motor is damaged.
The applicant found that the prior art has at least the following technical problems:
by adopting the unidirectional sealing ring, if the sealing ring is too tight, the friction coefficient is too high, the motor is easy to burn, the sealing ring is easy to wear and is easy to cause the problem of high-temperature charring and carbonization, the sealing is invalid, the motor rotation speed and power loss are too large, the electric energy is wasted, and the pumping efficiency is low; if the sealing is too loose, the fit between the sealing ring and the motor shaft is small, and the sealing performance is poor.
Disclosure of Invention
The utility model aims to provide a water pump sealing structure and a water pump, which are used for solving the problems that in the prior art, a unidirectional sealing ring is adopted, if the sealing ring is too tight, the friction coefficient is too high, a motor is easy to burn, the sealing ring is easy to wear and is easy to cause high-temperature charring, sealing failure is caused, the rotating speed and the power loss of the motor are too high, electric energy is wasted, and the water pumping efficiency is low; conversely, if the seal is too loose, the fit between the seal ring and the motor shaft is smallTechnical problem of poor sealing performance 。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a water pump sealing structure, which comprises a first sealing structure, a second sealing structure and a sealing main body, wherein:
the first sealing structure comprises a first body and a first extension part arranged on the first body, and a first sealing groove is arranged in the first extension part;
the second sealing structure comprises a second body and a second extension part arranged on the second body, and a second sealing groove is arranged in the second extension part;
a first groove structure and a second groove structure which are communicated are arranged in the sealing main body;
the first body is arranged in the first groove structure, and the first extension part extends into the second groove structure; the second body is in butt joint with the end part of the sealing main body, the second extension part stretches into a motor shaft outlet arranged on the pump shell, and the motor shaft sequentially passes through the first groove structure, the first sealing groove, the second groove structure and the second sealing groove and then stretches out of the motor shaft outlet.
Preferably, the sealing body comprises an integrally formed first body and second body, the first body having a cross-sectional area greater than the cross-sectional area of the first body, wherein:
forming the first groove structure by extending a groove from one end of the sealing main body to the inner side of the sealing main body;
forming the second groove structure by extending a groove from the other end of the sealing main body to the inner side of the sealing main body;
the first channel structure has a cross-sectional area that is greater than a cross-sectional area of the second channel structure.
Preferably, the first sealing groove and the second sealing groove are both conical grooves.
Preferably, the first extension portion and the second extension portion both adopt cone structures.
Preferably, the end of the sealing body is provided with a notch located at the periphery of the second groove structure.
Preferably, the end surfaces of the first body and the second body are respectively provided with a first sealing part and a second sealing part, wherein:
the first seal is located between the first body and the seal body, and the second seal is located between the second body and the pump casing.
Preferably, a third sealing part is arranged on the end face of the sealing main body, and the third sealing part is positioned between the sealing main body and the second body.
Preferably, the lubricating structure is further comprised, wherein:
the first groove structure and the second groove structure are internally provided with the lubricating structure.
Preferably, the sealing main body and the first sealing structure adopt an integrated structure, and/or the sealing main body and the second sealing structure adopt an integrated structure.
A water pump comprises the water pump sealing structure.
The utility model provides a water pump sealing structure and a water pump, comprising a first sealing structure, a second sealing structure and a sealing main body, wherein a first groove structure and a second groove structure are arranged in the sealing main body, the first body of the first sealing structure is arranged in the first groove structure, a first extending part stretches into the second groove structure, the second body of the second sealing structure is abutted with the end part of the sealing main body, the second extending part stretches into a motor shaft outlet arranged on a pump shell, and a motor shaft sequentially passes through the first groove structure, the first sealing groove, the second groove structure and the second sealing groove and then stretches out of the motor shaft outlet.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a water pump seal structure according to the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of a first seal structure in the water pump seal structure of the present utility model;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic structural view of a second seal structure in the water pump seal structure of the present utility model;
FIG. 6 is a schematic cross-sectional view of FIG. 5;
FIG. 7 is a schematic view of the structure of the seal body in the water pump seal structure of the present utility model;
FIG. 8 is a schematic cross-sectional view of FIG. 7;
FIG. 9 is a schematic cross-sectional view of the water pump seal of the present utility model in use;
fig. 10 is a schematic view showing another angle of the sealing body in the water pump sealing structure of the present utility model.
In the figure: 1. a first sealing structure; 11. a first body; 110. a first sealing part; 1101. a first layer of sealing ring; 1102. a second layer of sealing ring; 12. a first extension; 120. a first seal groove; 2. a second sealing structure; 21. a second body; 210. a second sealing part; 22. a second extension; 220. a second seal groove; 3. a sealing body; 30. a notch; 31. a first body; 310. a first groove structure; 32. a second body; 320. a second groove structure; 33. a third sealing part; 4. a pump housing; 40. a motor shaft outlet; 5. and a motor shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it should be understood that the terms "center", "side", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
The utility model provides a water pump sealing structure, wherein fig. 1 is a schematic structural diagram of the embodiment, fig. 2 is a schematic sectional structural diagram of fig. 1, and as shown in fig. 1 and 2, the water pump sealing structure comprises a first sealing structure 1, a second sealing structure 2 and a sealing main body 3.
Fig. 3 is a schematic structural view of the first sealing structure in the present embodiment, fig. 4 is a schematic sectional structural view of fig. 3, and as shown in fig. 3 and 4, the first sealing structure 1 includes a first body 11 and a first extension portion 12 disposed on the first body 11, and a first sealing groove 120 is disposed in the first extension portion 12.
Fig. 5 is a schematic structural view of the second sealing structure in the present embodiment, fig. 6 is a schematic sectional structural view of fig. 5, and as shown in fig. 5 and 6, the second sealing structure 2 includes a second body 21 and a second extension portion 22 disposed on the second body 21, and a second sealing groove 220 is disposed in the second extension portion 22.
Fig. 7 is a schematic structural view of the sealing body in the present embodiment, and fig. 8 is a schematic sectional structural view of fig. 7, and as shown in fig. 7 and 8, a first groove structure 310 and a second groove structure 320 communicating with each other are provided inside the sealing body 3.
Fig. 9 is a schematic cross-sectional view of the present embodiment, as shown in fig. 9, where the first body 11 is disposed in the first slot structure 310, and the first extension 12 extends into the second slot structure 320; the second body 21 is abutted against the end of the seal body 3, the second extension 22 extends into the motor shaft outlet 40 provided on the pump housing 4, and the motor shaft 5 sequentially passes through the first groove structure 310, the first seal groove 120, the second groove structure 320, and the second seal groove 220, and then extends out of the motor shaft outlet 40.
This water pump seal structure, including first seal structure 1, second seal structure 2 and seal main part 3, seal main part 3's inside sets up the first groove structure 310 and the second groove structure 320 of intercommunication, first seal structure 1's first body 11 sets up in first groove structure 310, first extension 12 stretches into in the second groove structure 320, the second body 21 of second seal structure 2 and seal main part 3's tip butt, second extension 22 stretches into in the motor shaft export 40 that sets up on the pump case 4, motor shaft 5 stretches out motor shaft export 40 after passing first groove structure 310 in proper order, first seal groove 120, second groove structure 320, second seal groove 220, when the motor is pushed towards motor shaft export 40's direction under the effect, through first extension 12 and second extension 22 that set up, carry out effective sealing to motor shaft 5, current water pump sealing washer is because the assembly is not put in place, high-speed rotation at the motor, high Wen Zaocheng sealing washer wearing and tearing lead to the inside water pump and cause the problem of motor damage.
As an alternative embodiment, fig. 10 is a schematic view of another angle of the seal body in this embodiment, and as shown in fig. 10, the seal body 3 includes a first body 31 and a second body 32 that are integrally formed, the cross-sectional area of the first body 31 is larger than that of the second body 32, so that the first body 31 and the outer surface of the second body 32 form a step structure, and the step structure is used for abutting against a structure in the pump casing 4 for better sealing.
Wherein the first groove structure 310 is formed by extending and grooving the end of the first main body 31 to the inner side of the sealing main body 3; a second groove structure 320 formed by extending and grooving the end of the second body 32 toward the inside of the seal body 3; the cross-sectional area of the first groove structure 310 is larger than that of the second groove structure 320, so that a step is formed between the first groove structure 310 and the second groove structure 320, and the end face of the first body 11 abuts against the step.
Specifically, the cross-sectional area of the first body 11 is the same as the cross-sectional area of the first groove structure 310, so that the first sealing structure 1 is better positioned, assembly and sealing are more facilitated, and meanwhile, the problem that sealing failure is caused by offset dislocation of the sealing main body 3 and the first sealing structure 1 in the assembly process is avoided.
As an alternative embodiment, the first sealing groove 120 and the second sealing groove 220 are tapered grooves, when in use, under the action of pressure, the first sealing structure 1 and the second sealing structure 2 move towards the direction of the motor shaft outlet 40, and the tapered grooves can be attached to the motor shaft more, so that indirect sealing failure caused by bearing swing is avoided, and sealing performance is improved.
Through adopting the toper structure that upper end opening is big, the lower extreme opening is little, namely the port of first seal groove 120, second seal groove 220 inclines to one side of motor shaft 5, when the motor generates heat, the air expansion in the pump case 4 cavity, the pressure of first seal structure 1, second seal structure 2 and sealed main part all increases, under the effect of pressure, first seal structure 1, second seal structure 2 is to the direction lapse of motor shaft export 40, make first seal structure 1, second seal structure 2 and motor shaft 5 laminate more, the leakproofness reinforcing, thereby leak after having avoided the inside air expansion of water pump casing effectively, and can not lead to the inside water absorption of pump case 4 cavity to cause sealed inefficacy because of the appearance of expend with heat and contract with cold.
Specifically, the first extension portion 12 and the second extension portion 22 both adopt tapered structures, so that the overall stress uniformity of the tapered slot is better, and the tapered slot is more stable and reliable in use.
As an alternative embodiment, the end of the sealing body 3 is provided with a notch 30, the notch 30 being located at the outer periphery of the second groove structure 320.
By arranging the notch 30 at the end part of the sealing main body 3, a certain assembly surplus is reserved between the sealing main body 3 and the water pump shell, and leakage caused by extrusion deformation during use is avoided.
As an alternative embodiment, the end surfaces of the first body 11 and the second body 21 are provided with a first sealing portion 110 and a second sealing portion 210, respectively. Wherein the first sealing portion 110 is located between the first body 11 and the sealing main body 3, and the second sealing portion 210 is located between the second body 21 and the pump casing 4.
In this embodiment, the first sealing structure 1 and the second sealing structure 2 are made of soft materials with high elasticity, such as silica gel, rubber, etc., so as to facilitate better sealing. The first sealing portion 110 and the second sealing portion 210 each include two layers of sealing rings, and the first sealing portion 110 and the second sealing portion 210 may be made of the same material as the first sealing structure 1 and the second sealing structure 2 and integrally formed. Of course, the device can be set as a split type according to actual use requirements, and other soft materials meeting the requirements can be selected.
Specifically, the first seal ring 1101 is disposed at the ends of the first body 11 and the second body 21, and the second seal ring 1102 is disposed between the first seal ring and the first extension 12 and the second extension 22. The provision of the first seal portion 110 and the second seal portion 210 provides for effective sealing between the first seal structure 1 and the seal body 3, and between the second seal structure 2 and the pump casing 4.
As an alternative embodiment, a third sealing portion 33 is provided on the end face of the sealing body 3, the third sealing portion 33 being located between the sealing body 3 and the second body 21.
In this embodiment, the third sealing portion 33 is a sealing ring structure protruding from the sealing body 3 and integrally formed with the sealing body 3 and disposed along an end surface of the sealing body 3, so as to effectively seal between the sealing body 3 and the second sealing structure 2.
As an alternative embodiment, a lubrication structure is further included, wherein the lubrication structure is disposed in both the first groove structure 310 and the second groove structure 320.
In this embodiment, the first groove structure 310 and the second groove structure 320 are filled with the high-low temperature resistant sealing lubricating grease currently available in the market, so as to realize the lubrication function, and of course, other lubrication structures or lubrication modes can be adopted during actual use, so that the use requirements can be met.
As an alternative embodiment, the sealing body 3 and the first sealing structure 1 are integrally formed and/or the sealing body 3 and the second sealing structure 2 are integrally formed.
In actual production and use, an integrally formed structure is adopted between the sealing main body 3 and the first sealing structure 1, so that the stability of connection is better. Of course, the sealing main body 3 and the first sealing structure 1 can also be connected in a split type, so that the components can be conveniently maintained and replaced, and the components can be selected according to actual use requirements in actual production and use processes.
Likewise, an integrally formed structure is adopted between the sealing main body 3 and the second sealing structure 2, so that the stability of connection is better. Of course, the sealing body 3 and the second sealing structure 2 may be connected in a split manner, so as to facilitate maintenance and replacement of components, and may be selected according to actual use requirements during actual production and use.
A water pump comprises the water pump sealing structure. The utility model provides a water pump seal structure, including first seal structure 1, second seal structure 2 and seal main part 3, seal main part 3's inside sets up the first groove structure 310 and the second groove structure 320 of intercommunication, first seal structure 1's first body 11 sets up in first groove structure 310, first extension 12 stretches into in the second groove structure 320, second seal structure 2's second body 21 and seal main part 3's tip butt, second extension 22 stretches into in the motor shaft export 40 that sets up on the pump case 4, motor shaft 5 passes first groove structure 310 in proper order, first seal groove 120, second groove structure 320, stretch out motor shaft export 40 behind the second seal groove 220, during the use, when the motor is pushed towards motor shaft export 40 under the effect of pressure, through first extension 12 and second extension 22 that set up, carry out effective seal to motor shaft 5, current water pump sealing washer is because the assembly is not put in place, high-speed rotation at the motor, high Wen Zaocheng sealing washer wearing and tearing lead to the inside water pump causes the problem that the motor damage.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A water pump seal structure, its characterized in that: including first seal structure, second seal structure and seal body, wherein:
the first sealing structure comprises a first body and a first extension part arranged on the first body, and a first sealing groove is arranged in the first extension part;
the second sealing structure comprises a second body and a second extension part arranged on the second body, and a second sealing groove is arranged in the second extension part;
a first groove structure and a second groove structure which are communicated are arranged in the sealing main body;
the first body is arranged in the first groove structure, and the first extension part extends into the second groove structure; the second body is in butt joint with the end part of the sealing main body, the second extension part stretches into a motor shaft outlet arranged on the pump shell, and the motor shaft sequentially passes through the first groove structure, the first sealing groove, the second groove structure and the second sealing groove and then stretches out of the motor shaft outlet.
2. The water pump sealing structure according to claim 1, wherein: the seal body includes integrated into one piece's first body and second body, the cross-sectional area of first body is greater than the cross-sectional area of second body, wherein:
forming the first groove structure by extending grooves from the end part of the first main body to the inner side of the sealing main body;
forming the second groove structure by extending grooves from the end part of the second main body to the inner side of the sealing main body;
the first channel structure has a cross-sectional area that is greater than a cross-sectional area of the second channel structure.
3. A water pump sealing structure according to claim 1 or 2, characterized in that: the first sealing groove and the second sealing groove are both conical grooves.
4. A water pump seal structure according to claim 3, wherein: the first extension part and the second extension part both adopt cone-shaped structures.
5. A water pump sealing structure according to claim 1 or 2, characterized in that: the end of the sealing body is provided with a notch, and the notch is positioned at the periphery of the second groove structure.
6. A water pump sealing structure according to claim 1 or 2, characterized in that: the terminal surface of first body the second body sets up first sealing part and second sealing part respectively, wherein:
the first seal is located between the first body and the seal body, and the second seal is located between the second body and the pump casing.
7. The water pump seal structure according to claim 6, wherein: and a third sealing part is arranged on the end face of the sealing main body and is positioned between the sealing main body and the second body.
8. A water pump sealing structure according to claim 1 or 2, characterized in that: also included is a lubrication structure, wherein:
the first groove structure and the second groove structure are internally provided with the lubricating structure.
9. A water pump sealing structure according to claim 1 or 2, characterized in that: the sealing main body and the first sealing structure adopt an integrated structure, and/or the sealing main body and the second sealing structure adopt an integrated structure.
10. A water pump comprising the water pump seal of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320819534.1U CN219452490U (en) | 2023-04-07 | 2023-04-07 | Water pump sealing structure and water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320819534.1U CN219452490U (en) | 2023-04-07 | 2023-04-07 | Water pump sealing structure and water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452490U true CN219452490U (en) | 2023-08-01 |
Family
ID=87385434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320819534.1U Active CN219452490U (en) | 2023-04-07 | 2023-04-07 | Water pump sealing structure and water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452490U (en) |
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2023
- 2023-04-07 CN CN202320819534.1U patent/CN219452490U/en active Active
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