CN210179012U - Breathing pressure valve - Google Patents
Breathing pressure valve Download PDFInfo
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- CN210179012U CN210179012U CN201920990753.XU CN201920990753U CN210179012U CN 210179012 U CN210179012 U CN 210179012U CN 201920990753 U CN201920990753 U CN 201920990753U CN 210179012 U CN210179012 U CN 210179012U
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- spring seat
- inner cavity
- base
- pressure valve
- steel ball
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Abstract
The utility model discloses a respiratory pressure valve, which comprises a base, a dustproof nut, a spring seat and a steel ball, wherein one end of the base is a fixed part, the other end is a connecting part, a connecting inner cavity is axially arranged on the end surface of the fixed part, an internal thread is arranged on the side wall of the connecting inner cavity, a through hole extending to the end surface of the connecting part is arranged on the end surface wall, an external thread is arranged on the connecting part, a single-opening inner cavity is axially arranged on the dustproof nut, an internal thread is arranged on the inner wall of the dustproof nut, a first air hole communicated with the outside and the inner cavity of the dustproof nut is arranged on the dustproof nut, a single-opening inner cavity is axially arranged on the spring seat, an external thread is arranged on the surface of the spring seat, a second air hole communicated with the outside and the inner cavity of the spring seat is arranged on the spring seat, the, the steel ball is acted by the pressure spring to form spherical surface sealing on the through hole.
Description
Technical Field
The utility model relates to a motor field of making especially relates to a respiratory pressure valve for inside and outside ventilative and the immersion-proof of motor.
Background
The inner cavity of the motor is generally a closed or high-tightness structure, and the tightness requirement is higher particularly under the severe environment working condition. However, the motor generates heat in a continuous working state, the inner cavity expands in a sealed state, the internal pressure rises to cause the body to break, and even the motor burns out due to high-temperature heat generation in an extreme state. In order to avoid the above situation, it is necessary to design a ventilation structure for the motor so as to adjust the pressure of the inner cavity of the motor, but it is necessary to ensure the waterproof sealing performance of the motor.
The design that sets up electric control valve on the motor exists among the prior art, monitors temperature, pressure isoparametric through the cooperation sensor, in case the detected value is unusual, control valve opens promptly, reaches the purpose of pressure release, and when the detected value was normal, the valve that controls resets and closes again. The structure system is complex, has high requirement on the sensitivity of the sensor, high failure rate, poor water immersion prevention capability, high degree of modification of the motor structure and insufficient adaptability.
SUMMERY OF THE UTILITY MODEL
Based on above, an object of the utility model is to provide a respiratory pressure valve, the convenient integration reaches the purpose that automatically regulated motor inner chamber pressure effectively prevented soaking simultaneously on the motor.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a respiratory pressure valve comprises a base, a dustproof nut, a spring seat and a steel ball, wherein one end of the base is a fixed part, the other end of the base is a connecting part, a connecting inner cavity is axially formed in the end face of the fixed part, an internal thread is arranged on the side wall of the connecting inner cavity, a through hole extending to the end face of the connecting part is formed in the end face wall of the connecting inner cavity, an external thread is arranged on the connecting part, a single-opening inner cavity is axially formed in the dustproof nut, an internal thread matched with the external thread of the base is formed in the inner wall of the dustproof nut, a first air vent communicated with the outside and the inner cavity of the dustproof nut is formed in the dustproof nut, a single-opening inner cavity is axially formed in the spring seat, an external thread matched with the internal thread of the base is formed in the surface of the spring seat, a second air vent communicated with, the diameter of the steel ball is larger than the aperture of the through hole, the opening of the spring seat faces the base and is connected with the base, and the steel ball is acted by the pressure spring to form spherical sealing on the through hole.
Furthermore, the second air hole is formed in the side face of the spring seat, a reaming hole is formed in the end portion, connected with the inner cavity, of the fixing portion, so that an air gap exists between the base and the spring seat, and the second air hole is communicated with the air gap.
Furthermore, a third air hole is arranged on the fixing part and communicated with the air gap.
Furthermore, the spring seat is provided with a rotating part, and the elastic force of the pressure spring is adjusted through the rotating spring seat.
Furthermore, a sealing ring is clamped between the steel ball and the end face wall of the connecting inner cavity.
Further, the first air hole is formed in the side face of the dustproof nut.
Furthermore, the fixed part is protruded from the surface of the connecting part, and the fixed part and the dustproof nut form butt clamp and act on the inner side and the outer side of the mounting part.
Further, the respiratory pressure valves are used in pairs and are installed in opposition.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, respiratory pressure valve simple structure, the principle is ingenious, adopt pure mechanical structure to add the pressure control principle, only need on motor casing in pairs, install the use on the contrary, can realize one and breathe in, give vent to anger and the function of automatically regulated inner chamber atmospheric pressure, need not to change the original structure of motor, only need set up on motor casing two installing ports can, in addition, this valve body structure prevents soaking the ability reinforce, and even motor inner chamber is on fire under encapsulated situation also can cause automatic naked light of going out behind the inner chamber oxygen deficiency in the short time, realize waterproof, fire prevention function, realize the functional breakthrough of motor.
Drawings
Fig. 1 is a schematic structural diagram of a respiratory pressure valve provided by an embodiment of the present invention;
fig. 2 is an exploded view of a respiratory pressure valve provided by an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a respiratory pressure valve according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present embodiment provides a breathing pressure valve, which is suitable for various motors such as vehicle motors and engineering machinery motors, and takes an engine starting motor as an example, when the breathing pressure valve is installed, two breathing pressure valves are used in pairs and installed oppositely, and two installation ports are opened on a motor housing, and the breathing pressure valve can be installed at any suitable position of the motor housing, so as to realize the function of automatically adjusting pressure by breathing one breath.
The respiratory pressure valve comprises a base 1, a dustproof nut 2, a spring seat 3 and a steel ball 4.
The one end of base 1 is fixed part 11, and the other end is connecting portion 12, has seted up along the axial on the terminal surface of fixed part 11 and has connected inner chamber 13, is provided with the internal thread on the lateral wall of connecting inner chamber 13, and sets up the through-hole 14 that extends to connecting portion 12 terminal surface on the terminal surface wall, is provided with the external screw thread on connecting portion 12.
The dustproof nut 2 is provided with a single-opening inner cavity along the axial direction, the inner wall of the dustproof nut is provided with an internal thread matched with the external thread of the base 1, the dustproof nut 2 is provided with a first air hole 21 communicated with the outside and the inner cavity of the dustproof nut, and the first air hole 21 is positioned on the side surface of the dustproof nut 2.
A single-opening inner cavity is formed in the spring seat 3 in the axial direction, external threads matched with the internal threads of the base 1 are arranged on the surface of the spring seat 3, a second air hole 31 communicated with the outside and the inner cavity of the spring seat 3 is formed in the spring seat 3, the second air hole 31 is located on the side face of the spring seat 3, a reaming hole is formed in the end portion, located at the fixed portion 11, of the connecting inner cavity 13, a ventilation gap 16 is formed between the base 1 and the spring seat 3, and the second air hole 31 is communicated with. The fixing portion 11 is provided with a third air hole 15, and the third air hole 15 is communicated with the air gap 16.
The steel ball 4 is arranged in the inner cavity of the spring seat 3, a pressure spring 5 which acts on the steel ball 4 and pushes the steel ball out of the inner cavity of the spring seat 3 is further arranged in the inner cavity of the spring seat 3, the diameter of the steel ball 4 is larger than the aperture of the through hole 14, the opening of the spring seat 3 faces the base 1 and is connected with the base, and the steel ball 4 forms spherical seal on the through hole 14 under the action of the pressure spring 5. And a sealing ring 6 is clamped between the steel ball 4 and the end face wall of the connecting inner cavity 13, so that the sealing performance is improved. The spring seat 3 is provided with a rotating portion 32, and the elastic force of the pressure spring 5 is adjusted by rotating the spring seat 3, thereby setting the equilibrium air pressure.
The fixing part 11 protrudes from the surface of the connecting part 12, and the fixing part 11 and the dust-proof nut 2 form an opposite clamp and act on the inner side and the outer side of the motor shell.
To sum up, above-mentioned respiratory pressure valve simple structure, the principle is ingenious, adopt pure mechanical structure pressurization control principle, only need on motor casing in pairs, install the use on the contrary, can realize one and breathe in, give vent to anger and the function of automatically regulated inner chamber atmospheric pressure, need not to change the original structure of motor, only need set up on motor casing two installing ports can, in addition, this valve body structure prevents soaking the ability reinforce, and even motor cavity is on fire under encapsulated situation also can cause automatic naked light that goes out after the inner chamber oxygen deficiency in the short time, realize waterproof, the fire prevention function, realize motor functional breakthrough.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A respiratory pressure valve is characterized by comprising a base, a dustproof nut, a spring seat and a steel ball,
one end of the base is a fixed part, the other end of the base is a connecting part, a connecting inner cavity is axially arranged on the end surface of the fixed part, an internal thread is arranged on the side wall of the connecting inner cavity, a through hole extending to the end surface of the connecting part is arranged on the end surface wall, an external thread is arranged on the connecting part,
the dustproof nut is provided with a single-opening inner cavity along the axial direction, the inner wall of the dustproof nut is provided with an internal thread matched with the external thread of the base, the dustproof nut is provided with a first air vent communicated with the outside and the inner cavity of the dustproof nut,
the spring seat is provided with a single-opening inner cavity along the axial direction, the surface of the spring seat is provided with an external thread matched with the internal thread of the base, the spring seat is provided with a second air vent communicated with the outside and the inner cavity of the spring seat,
the steel ball is arranged in the inner cavity of the spring seat, a pressure spring which acts on the steel ball and pushes the steel ball outwards is further arranged in the inner cavity of the spring seat, the diameter of the steel ball is larger than the aperture of the through hole, the opening of the spring seat faces the base and is connected with the base, and the steel ball forms spherical surface sealing on the through hole under the action of the pressure spring.
2. The respiratory pressure valve as claimed in claim 1, wherein: the second air hole is formed in the side face of the spring seat, the connecting inner cavity is formed in the end portion of the fixing portion and provided with a reaming hole, a ventilation gap is formed between the base and the spring seat, and the second air hole is communicated with the ventilation gap.
3. The respiratory pressure valve as claimed in claim 2, wherein: the fixing part is provided with a third air hole which is communicated with the air gap.
4. The respiratory pressure valve as claimed in claim 1, wherein: the spring seat is provided with a rotating part, and the elasticity of the pressure spring is adjusted by rotating the spring seat.
5. The respiratory pressure valve as claimed in claim 1, wherein: and a sealing ring is clamped between the steel ball and the end face wall of the connecting inner cavity.
6. The respiratory pressure valve as claimed in claim 1, wherein: the first air hole is formed in the side face of the dustproof nut.
7. The respiratory pressure valve as claimed in claim 1, wherein: the fixing part is protruded out of the surface of the connecting part, and the fixing part and the dustproof nut form butt clamp and act on the inner side and the outer side of the mounting part.
8. The respiratory pressure valve as claimed in claim 1, wherein: the respiratory pressure valves are used in pairs and are installed in opposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990753.XU CN210179012U (en) | 2019-06-27 | 2019-06-27 | Breathing pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990753.XU CN210179012U (en) | 2019-06-27 | 2019-06-27 | Breathing pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210179012U true CN210179012U (en) | 2020-03-24 |
Family
ID=69839301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920990753.XU Active CN210179012U (en) | 2019-06-27 | 2019-06-27 | Breathing pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210179012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206925A (en) * | 2019-06-27 | 2019-09-06 | 无锡明诚汽车部件有限公司 | A kind of respiratory pressure valve |
-
2019
- 2019-06-27 CN CN201920990753.XU patent/CN210179012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206925A (en) * | 2019-06-27 | 2019-09-06 | 无锡明诚汽车部件有限公司 | A kind of respiratory pressure valve |
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