CN213473108U - Electronic vacuum pump with one-way sealed exhaust pipe - Google Patents
Electronic vacuum pump with one-way sealed exhaust pipe Download PDFInfo
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- CN213473108U CN213473108U CN202022238504.0U CN202022238504U CN213473108U CN 213473108 U CN213473108 U CN 213473108U CN 202022238504 U CN202022238504 U CN 202022238504U CN 213473108 U CN213473108 U CN 213473108U
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Abstract
The utility model discloses an electronic vacuum pump with one-way sealed blast pipe, including electronic vacuum pump, electronic vacuum pump has the blast pipe, be provided with one-way seal assembly in the blast pipe, one-way seal assembly includes body, lower body, piston rod and spring, the beneficial effects of the utility model reside in that: normal exhaust of blast pipe both can be guaranteed through this one-way seal assembly, can prevent again to brake the back suck that the short-term negative pressure produced in the back pump body, avoid the vehicle wade into water because of the back suck that muddy water gets into inside the electronic vacuum pump, damage the rotor subassembly, guaranteed the performance of brake, improve the security of traveling.
Description
The technical field is as follows:
the utility model relates to an electron vacuum pump technical field specifically is an electron vacuum pump with one-way sealed blast pipe.
Background art:
although the pipeline between the electronic vacuum pump and the brake vacuum booster is provided with the one-way valve, the electronic vacuum pump still has a transient negative pressure state after being used, once the electronic vacuum pump is in rain or wade, the exhaust pipe of the electronic vacuum pump after being braked can generate a back suction phenomenon, so that the muddy water generated by moisture in the air or wade is sucked into the pump body, the rotor assembly in the pump body is damaged, and the braking performance is greatly influenced.
The utility model has the following contents:
the utility model aims at providing an electronic vacuum pump with one-way sealed blast pipe in order to solve the existing problem.
The technical solution of the utility model is as follows:
the utility model provides an electronic vacuum pump with one-way sealed blast pipe, includes electronic vacuum pump, electronic vacuum pump has the blast pipe, be provided with one-way seal assembly in the blast pipe, one-way seal assembly includes upper tube body, lower body, piston rod and spring, the plug bush is inside the blast pipe after upper tube body and lower body gomphosis, the inlet port has been seted up at upper tube body top, the venthole has been seted up to lower body bottom, the piston rod includes piston head, sealing washer and the body of rod, the sealing washer is installed on the piston head, the piston head can insert the inlet port and make it seal, be provided with in the venthole with body of rod plug bush complex stand pipe, the shaping has the multi-disc gusset between the outer wall of stand pipe and the inner wall of venthole, the.
Preferably, a sealing groove is formed in the piston head, and the sealing ring is installed in the sealing groove.
Preferably, the top of the piston head is formed with a conical top head, and the air inlet hole is provided with a conical hole section matched with the conical top head.
Preferably, the top surface of the upper pipe body and the bottom surface of the lower pipe body are both formed with concave conical surfaces.
Preferably, an annular retainer ring is formed on a bottom surface of the upper pipe body, and an annular groove to be fitted with the annular retainer ring is formed on a top surface of the lower pipe body.
The beneficial effects of the utility model reside in that: normal exhaust of blast pipe both can be guaranteed through this one-way seal assembly, can prevent again to brake the back suck that the short-term negative pressure produced in the back pump body, avoid the vehicle wade into water because of the back suck that muddy water gets into inside the electronic vacuum pump, damage the rotor subassembly, guaranteed the performance of brake, improve the security of traveling.
Description of the drawings:
FIG. 1 is a schematic front view of an electronic vacuum pump according to the present invention, in which an exhaust pipe is illustrated in a half-section;
fig. 2 is a schematic perspective view of the one-way sealing assembly of the present invention;
fig. 3 is a schematic perspective view of the one-way sealing assembly of the present invention;
FIG. 4 is a schematic top view of the one-way sealing assembly of the present invention;
FIG. 5 is a schematic view of a half-section taken at B-B in FIG. 4;
in the drawings: 1. an electronic vacuum pump; 2. an exhaust pipe; 3. a pipe body is arranged; 4. a lower pipe body; 5. a piston rod; 6. a spring; 7. an air inlet; 8. an air outlet; 9. a piston head; 10. a seal ring; 11. a rod body; 12. A guide tube; 13. a rib plate; 14. a conical plug; 15. an annular retainer ring; 16. and a ring groove.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-5, an electronic vacuum pump with a one-way sealed exhaust pipe 2 comprises an electronic vacuum pump 1, the electronic vacuum pump 1 has an exhaust pipe 2, a one-way sealing assembly is arranged in the exhaust pipe 2, the one-way sealing assembly comprises an upper pipe body 3, a lower pipe body 4, a piston rod 5 and a spring 6, the upper pipe body 3 and the lower pipe body 4 are inserted and sleeved in the exhaust pipe 2 after being embedded, an air inlet 7 is arranged at the top of the upper pipe body 3, an air outlet 8 is arranged at the bottom of the lower pipe body 4, the piston rod 5 comprises a piston head 9, a sealing ring 10 and a rod body 11, the sealing ring 10 is arranged on the piston head 9, the piston head 9 can be inserted into the air inlet 7 to seal the air inlet, a guide pipe 12 which is inserted and sleeved with the rod body 11 is arranged in the air outlet 8, a plurality, the spring 6 is sleeved on the rod body 11.
Specifically, a sealing groove is formed in the piston head 9, and the sealing ring 10 is installed in the sealing groove.
Specifically, the top of the piston head 9 is formed with a conical top head 14, and the air inlet hole 7 has a conical hole section matched with the conical top head 14.
Specifically, the top surface of the upper pipe body 3 and the bottom surface of the lower pipe body 4 are both formed with concave conical surfaces.
Specifically, an annular retainer ring 15 is formed on the bottom surface of the upper pipe body 3, and an annular groove 16 fitted with the annular retainer ring 15 is formed on the top surface of the lower pipe body 4.
The working principle is as follows: installing a sealing ring 10 in a sealing groove, sleeving a spring 6 on a rod body 11, inserting the rod body 11 into a guide pipe 12, embedding an annular retainer ring 15 into an annular groove 16, then inserting a unidirectional sealing assembly into the exhaust pipe 2, and ensuring that the upper pipe body 3 is arranged upwards, wherein when the electronic vacuum pump 1 produces negative pressure, discharged gas rushes away a piston head 9 in an air inlet hole 7, the spring 6 contracts, the rod body 11 moves downwards, and the gas is discharged out of the exhaust pipe 2 through an air outlet hole 8; when the electronic vacuum pump 1 stops working, air is not exhausted any more, the piston head 9 rapidly seals the air inlet 7 under the resilience force of the spring 6 of the piston rod 5, and at the moment, the inside of the pump body is isolated from the outside, so that muddy water is prevented from being sucked into the pump body reversely by wading, and the rotor assembly of the pump body is prevented from being damaged.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. An electronic vacuum pump with a one-way sealed exhaust pipe comprises an electronic vacuum pump, wherein the electronic vacuum pump is provided with an exhaust pipe, and the electronic vacuum pump is characterized in that: the exhaust pipe is characterized in that a one-way sealing assembly is arranged in the exhaust pipe and comprises an upper pipe body, a lower pipe body, a piston rod and a spring, the upper pipe body and the lower pipe body are embedded and then sleeved in the exhaust pipe, an air inlet is formed in the top of the upper pipe body, an air outlet is formed in the bottom of the lower pipe body, the piston rod comprises a piston head, a sealing ring and a rod body, the sealing ring is installed on the piston head, the piston head can be inserted into the air inlet to enable the air inlet to be closed, a guide pipe matched with the rod body inserting sleeve is arranged in the air outlet, a plurality of rib plates are formed between the outer wall of the guide pipe and.
2. An electronic vacuum pump with a one-way sealed exhaust pipe as claimed in claim 1, wherein: a sealing groove is formed in the piston head, and the sealing ring is installed in the sealing groove.
3. An electronic vacuum pump with a one-way sealed exhaust pipe as claimed in claim 1, wherein: the top of the piston head is formed with a conical top head, and the air inlet hole is provided with a conical hole section matched with the conical top head.
4. An electronic vacuum pump with a one-way sealed exhaust pipe as claimed in claim 1, wherein: the top surface of the upper pipe body and the bottom surface of the lower pipe body are both formed with concave conical surfaces.
5. An electronic vacuum pump with a one-way sealed exhaust pipe as claimed in claim 1, wherein: the bottom surface shaping of going up the body has annular retaining ring, the top surface shaping of body has the annular with annular retaining ring gomphosis down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022238504.0U CN213473108U (en) | 2020-10-10 | 2020-10-10 | Electronic vacuum pump with one-way sealed exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022238504.0U CN213473108U (en) | 2020-10-10 | 2020-10-10 | Electronic vacuum pump with one-way sealed exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213473108U true CN213473108U (en) | 2021-06-18 |
Family
ID=76364869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022238504.0U Active CN213473108U (en) | 2020-10-10 | 2020-10-10 | Electronic vacuum pump with one-way sealed exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213473108U (en) |
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2020
- 2020-10-10 CN CN202022238504.0U patent/CN213473108U/en active Active
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