Breathable valve with novel structure

Abstract

The utility model discloses a novel structure breather valve which comprises a lower valve body, a top bead, an upper valve body and an upper cover, threads are arranged on the outer side of the bottom of the lower valve body, the lower valve body is hollow, and a top bead containing hole, a top bead reserved space and a clamping space which are communicated with one another are sequentially formed in the lower valve body from bottom to top. The hole diameter of the upper surface with the top bead containing hole is larger than that of the lower surface, an oil-proof breathable film is fixed to the clamping space, the upper valve body is hollow, the clamping part is clamped into the clamping space and abuts against the inner side wall of the clamping space, the upper end of the breathable part is open, and a space defined by the upper valve body and the upper cover is filled with a drying agent. When outside air is sucked into the cavity, it is guaranteed that the outside air makes full contact with the water absorption material (drying agent) in the suction process, then enters the air channel and the oil-proof breathable film and is finally sucked into the cavity, the content of water molecules in the treated air is greatly reduced, the quality of oil in the cavity is improved, and the service life of the water-proof breathable film is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a novel structural air-permeable valve. Background Art

[0002] As motor drive technology continues to develop in high quality, the quality requirements for motors are getting higher and higher, and they are developing in the direction of ultra-durability. There is gas exchange in closed cavities such as the reducer cavity of the reduction motor and the motor cavity. The isolation of water molecules and dust in the air has become a key factor affecting the quality, life and durability of oil products. At present, most of the breathable products used in the market have only simple waterproof and breathable membrane structures. There is no pre-treatment of water molecules and dust in the air. They directly enter the cavity through the breathable membrane, and the quality of oil products cannot be guaranteed. Therefore, improvements are needed. Summary of the invention

[0003] The utility model provides a novel structure breathable valve to solve the defects in the prior art that water molecules, dust and the like in the air are not pre-processed, directly enter the cavity through the breathable membrane, and the oil quality cannot be safely guaranteed.

[0004] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0005] A novel structural breathable valve comprises a lower valve body, a top ball, an upper valve body and an upper cover, wherein the outer side of the bottom of the lower valve body is provided with a thread, the lower valve body is hollow and has a top ball accommodating hole, a top ball reserved space and a clamping space which are interconnected from bottom to top in sequence inside, the aperture of the upper surface of the top ball accommodating hole is larger than the aperture of the lower surface, the top ball is placed in the top ball accommodating hole, an oil-proof breathable membrane is fixed to the clamping space, the upper valve body is hollow, the upper valve body is provided with a clamping portion and a breathable portion, the clamping portion is clamped into the clamping space and abuts against the inner side wall of the clamping space, the upper end of the breathable portion is open, the lower surface of the upper cover is connected to the upper surface of the lower valve body, the upper valve body is placed in a space formed by the upper cover and the lower valve body, the outer edge of the upper valve body abuts against the inner wall of the upper cover, the space formed by the upper valve body and the upper cover is filled with a desiccant, and the upper cover is provided with an exhaust hole.

[0006] Design air flow to the bend (such as Figure 1), when the outside air is sucked into the cavity, it is ensured that the outside air is fully in contact with the water-absorbing material (desiccant) during the inhalation process, and after isolating the dust, relatively dry gas is obtained, and then enters the airway, the oil-proof breathable membrane, and finally inhaled into the cavity. After such treatment, the water molecule content of the air is greatly reduced, and the quality of gas exchange is guaranteed, thereby improving the quality of the oil inside the cavity and the service life of the waterproof breathable membrane. The top bead is placed in the top bead receiving hole. When the internal air pressure is less than or equal to the external air pressure, the top bead and the top bead receiving hole offset each other to reduce the gas circulation rate. When the internal air pressure is greater than the external air pressure, the top bead is lifted up, and the gas circulation rate increases, which can prevent the motor from being damaged by excessive internal air pressure. The internal structure of the motor can be prevented.

[0007] Preferably, in the above-mentioned novel structure breathable valve, a breathable baffle cover is provided on the top of the upper valve body.

[0008] The breathable cover is used to prevent the desiccant from contacting the oil-proof breathable membrane.

[0009] Preferably, the novel structural air-permeable valve described above further includes a bushing, which is hollow and has a first elastic space, a second elastic space, and a third exhaust space interconnected from bottom to top. The first elastic space opens downward and the upper part of the top bead extends into the first elastic space, and the third exhaust space opens upward. The first elastic space and the second elastic space are both cylindrical as a whole, the diameter of the first elastic space is larger than the diameter of the top bead, and the diameter of the second elastic space is smaller than the diameter of the top bead.

[0010] The first elastic space is used to provide space for the top ball to move upward, and the diameter of the second elastic space is smaller than the diameter of the top ball, which can limit the top ball from continuing to move upward.

[0011] Preferably, the novel structural air-permeable valve described above further includes an elastic member, and an inwardly extending limiting ring convex is provided between the first elastic space and the third exhaust space, the lower section of the elastic member abuts against the top bead and the upper end of the elastic member abuts against the limiting ring convex.

[0012] The elastic member plays the role of resetting the top ball. The limiting ring convex is used to fix the elastic member.

[0013] Preferably, in the above-mentioned novel structural air-permeable valve, the elastic member is a spring.

[0014] The elastic member is a spring, which can achieve good ventilation effect and reduce costs.

[0015] Preferably, in the above-mentioned novel structural breathable valve, the exhaust hole of the upper cover is arranged at the lower part of the side surface of the upper cover.

[0016] The exhaust hole is arranged at the lower part of the side surface of the upper cover, so that the gas can be repeatedly contacted with the desiccant.

[0017] Preferably, in the above-mentioned novel structural air-permeable valve, the third exhaust space is in the shape of an inverted truncated cone as a whole.

[0018] The third exhaust space is in the shape of an inverted truncated cone as a whole, which can increase the contact between the gas and the oil-proof breathable membrane.

[0019] Preferably, in the above-described novel structural breathable valve, the bushing includes a containing sleeve and a top cover, the first elastic space and the second elastic space are formed in the containing sleeve, the third exhaust space is formed in the top cover, and the containing sleeve is welded to the top cover.

[0020] The accommodating sleeve and the top cover are separately shaped and then joined together by welding, thereby reducing the processing cost of the bushing.

[0021] Preferably, in the above-mentioned novel structural breathable valve, a sealing ring is provided on the outer side of the bottom of the lower valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the utility model;

[0023] Figure 2 It is a cross-sectional view of the lower valve body of the utility model;

[0024] Figure 3 It is a cross-sectional view of the bushing in the utility model;

[0025] Figure 4 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0027] Example 1

[0028] A novel structure breathable valve, comprising a lower valve body 1, a top ball 2, an upper valve body 3, and an upper cover 4. The bottom outer side of the lower valve body 1 is provided with a thread. The lower valve body 1 is hollow and has a top ball accommodating hole 11, a top ball reserved space 12, and a clamping space 13 that are interconnected from bottom to top. The aperture of the upper surface of the top ball accommodating hole 11 is larger than the aperture of the lower surface. The top ball 2 is placed in the top ball accommodating hole 11. The clamping space 13 is fixed with an oil-proof breathable membrane 5. The upper valve body 3 is hollow. The upper valve body 3 is provided with a clamping portion 31 and a ventilating portion 32. The clamping portion 31 is clamped into the clamping space 13 and abuts against the inner wall of the clamping space 13. The upper end of the ventilating portion 32 is open. The lower surface of the upper cover 4 is connected to the upper surface of the lower valve body 1. The upper valve body 3 is placed in the space formed by the upper cover 4 and the lower valve body 1. The outer edge of the upper valve body 3 abuts against the inner wall of the upper cover 4. The space formed by the upper valve body 3 and the upper cover 4 is filled with a desiccant, and the upper cover 4 is provided with an exhaust hole 41.

[0029] Preferably, a breathable blocking cover 33 is provided on the top of the upper valve body 3 .

[0030] Preferably, it further includes a bushing 6, which is hollow and has a first elastic space 61, a second elastic space 62, and a third exhaust space 63 which are interconnected from bottom to top. The first elastic space 61 is open downward and the upper part of the top ball 2 extends into the first elastic space 61, and the third exhaust space 63 is open upward. The first elastic space 61 and the second elastic space 62 are both cylindrical as a whole. The diameter of the first elastic space 61 is larger than the diameter of the top ball 2, and the diameter of the second elastic space 62 is smaller than the diameter of the top ball 2.

[0031] Preferably, an elastic member 7 is further included, and an inwardly extending limiting ring protrusion 64 is provided between the first elastic space 61 and the third exhaust space 63 , the lower section of the elastic member 7 abuts against the top bead 2 and the upper end of the elastic member 7 abuts against the limiting ring protrusion 64 .

[0032] Preferably, the elastic member 7 is a spring.

[0033] Preferably, the exhaust hole 41 of the upper cover 4 is arranged at the lower part of the side surface of the upper cover 4 .

[0034] Preferably, the third exhaust space 63 is in an inverted truncated cone shape as a whole.

[0035] Preferably, the bushing 6 includes a containing sleeve 601 and a top cover 602 , a first elastic space 61 and a second elastic space 62 are formed in the containing sleeve 601 , a third exhaust space 63 is formed in the top cover 602 , and the containing sleeve 601 and the top cover 602 are welded.

[0036] Preferably, a sealing ring 9 is provided on the outer side of the bottom of the lower valve body 1 .

[0037] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A novel structured vent valve, characterized in that: The invention comprises a lower valve body (1), a top ball (2), an upper valve body (3), and an upper cover (4); the bottom outer side of the lower valve body (1) is provided with a thread; the lower valve body (1) is hollow and has a top ball accommodating hole (11), a top ball reserved space (12), and a clamping space (13) which are interconnected from bottom to top; the aperture of the upper surface of the top ball accommodating hole (11) is larger than the aperture of the lower surface; the top ball (2) is arranged in the top ball accommodating hole (11); an oil-proof and breathable membrane (5) is fixed to the clamping space (13); the upper valve body (3) is hollow and has a A clamping portion (31) and a venting portion (32) are provided, the clamping portion (31) is clamped into the clamping space (13) and abuts against the inner wall of the clamping space (13), the upper end of the venting portion (32) is open, the lower surface of the upper cover (4) is connected to the upper surface of the lower valve body (1), the upper valve body (3) is placed in a space enclosed by the upper cover (4) and the lower valve body (1), the outer edge of the upper valve body (3) abuts against the inner wall of the upper cover (4), the space enclosed by the upper valve body (3) and the upper cover (4) is filled with a desiccant, and the upper cover (4) is provided with an exhaust hole (41).

2. A novel structured breathable valve according to claim 1, characterized in that: A breathable blocking cover (33) is provided on the top of the upper valve body (3).

3. A novel structured breathable valve according to claim 1, characterized in that: The invention also comprises a bushing (6), wherein the bushing (6) is hollow and has a first elastic space (61), a second elastic space (62) and a third exhaust space (63) which are interconnected from bottom to top. The first elastic space (61) is open downward and the upper part of the top ball (2) extends into the first elastic space (61). The third exhaust space (63) is open upward. The first elastic space (61) and the second elastic space (62) are both cylindrical in shape. The diameter of the first elastic space (61) is larger than the diameter of the top ball (2), and the diameter of the second elastic space (62) is smaller than the diameter of the top ball (2).

4. A novel structured vent valve according to claim 3, characterized in that: It also includes an elastic member (7), a limiting ring protrusion (64) extending inwardly is provided between the first elastic space (61) and the third exhaust space (63), the lower section of the elastic member (7) abuts against the top bead (2) and the upper end of the elastic member (7) abuts against the limiting ring protrusion (64).

5. A novel structured breathable valve according to claim 4, characterized in that: The elastic member (7) is a spring.

6. The novel structured breathable valve according to claim 1 is characterized in that: The exhaust hole (41) of the upper cover (4) is arranged at the lower part of the side surface of the upper cover (4).

7. The novel structured breathable valve according to claim 3 is characterized by: The third exhaust space (63) is in the shape of an inverted truncated cone as a whole.

8. The novel structured breathable valve according to claim 3 is characterized by: The bushing (6) comprises a containing sleeve (601) and a top cover (602); a first elastic space (61) and a second elastic space (62) are formed in the containing sleeve (601); a third exhaust space (63) is formed in the top cover (602); and the containing sleeve (601) and the top cover (602) are welded.

9. The novel structured breathable valve according to claim 1 is characterized in that: A sealing ring (9) is arranged on the outer side of the bottom of the lower valve body (1).

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