CN213928676U - Suck-back-proof automobile electric vacuum pump - Google Patents
Suck-back-proof automobile electric vacuum pump Download PDFInfo
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- CN213928676U CN213928676U CN202022570984.0U CN202022570984U CN213928676U CN 213928676 U CN213928676 U CN 213928676U CN 202022570984 U CN202022570984 U CN 202022570984U CN 213928676 U CN213928676 U CN 213928676U
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- way valve
- vacuum pump
- way
- electric vacuum
- valve head
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Abstract
The utility model relates to a prevent suck-back car electric vacuum pump belongs to car braking system field. Prevent that suck-back connects and peg graft with electric vacuum pump, one-way disk seat front portion passes through ultrasonic bonding as an organic whole with the one-way valve head, one-way disk seat presses rubber diaphragm one end between the one-way valve head, this rubber diaphragm's the other end and the contact of one-way valve head, gaseous entering from one-way valve head oral area, can form one-way motion when passing through the rubber diaphragm, connect the buckle to place inside the rear of one-way disk seat, the spacing ring assembly just is located joint buckle front portion inside one-way disk seat, by the inside draw-in groove locking of one-way disk seat, O type sealing washer one and O type sealing washer two are placed in proper order to the joint buckle front end. The advantage is novel structure, and is compact, and the check valve opening pressure is low, the characteristics of no air current noise, can be quick with the assembly of electric vacuum pump, realize that car electric vacuum pump prevents the suck-back function, promoted product work efficiency.
Description
Technical Field
The utility model belongs to car braking system field especially is to car electric vacuum pump's improvement.
Background
In the electric vacuum pump industry at present, the suck-back problem of the electric vacuum pump is a common phenomenon, and the one-way valve in the pipeline is mostly arranged on a vacuum booster assembly or a vacuum tank and is far away from the vacuum pump.
When the air is sucked back, impurities and dust in the air can enter the electric vacuum pump. If the vehicle is in a wading state, water and silt can be sucked into the pump together, and the normal service life of the product can be seriously influenced by the entering of impurities.
Disclosure of Invention
The utility model discloses a prevent suck-back car electric vacuum pump to solve the problem that electric vacuum pump pause during operation outside air suck-back goes into the vacuum pump.
The utility model adopts the technical proposal that: comprises an electric vacuum pump, a suck-back prevention joint is inserted with the electric vacuum pump, wherein the suck-back prevention joint comprises a one-way valve seat, a joint buckle, a limiting ring, a first O-shaped sealing ring, a support ring, a second O-shaped sealing ring, a rubber diaphragm and a one-way valve head, the front part of the one-way valve seat and the one-way valve head are welded into a whole through ultrasonic wave, the one-way valve seat presses one end of the rubber diaphragm between the one-way valve heads, the other end of the rubber diaphragm is in contact with the one-way valve head, gas enters from the opening of the one-way valve head and can form one-way motion when passing through the rubber diaphragm, the joint buckle is placed inside the rear part of the one-way valve seat, the limiting ring is assembled inside the one-way valve seat and positioned in front of the joint buckle and locked by a clamping groove in the one-way valve seat, the front end of the joint buckle is sequentially provided with a first O-shaped sealing ring and a second O-shaped sealing ring, and the support ring is positioned between the first O-shaped sealing ring;
the middle part of the one-way valve head is provided with a clamping bulge I;
the front part of the one-way valve head is provided with a clamping protrusion II.
The utility model has the advantages of novel structure, prevent that suck-back connects possesses compact structure, the check valve opening pressure is low, the characteristics of no air current noise, can be quick with the electric vacuum pump assembly, realize the function of preventing suck-back of car electric vacuum pump, prevent that impurity from getting into inside the electric vacuum pump, when reducing gaseous suck-back, the work efficiency of electric vacuum pump has also been promoted, after gaseous backward flow gets into braking vacuum pipeline, need take the gas of backward flow out once more in order to reach the target vacuum at next during operation, through reducing the backward flow, the electric vacuum pump can be more quick take residual air out, faster arrival target vacuum, product work efficiency has been promoted, the electric power energy can be saved, the problem of outside air suck-back backward flow income vacuum pump when having solved electric vacuum pump pause work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an assembly view of the present invention;
FIG. 3 is a schematic structural view of the suck-back prevention joint of the present invention;
fig. 4 is a schematic structural view of the one-way valve head of the present invention having two protruding clamping protrusions at the front end.
Detailed Description
The anti-suck-back connector 2 is spliced with the electric vacuum pump 1, wherein the anti-suck-back connector 2 comprises a one-way valve seat 201, a connector buckle 202, a limiting ring 203, a first O-shaped sealing ring 204, a support ring 205, a second O-shaped sealing ring 206, a rubber diaphragm 207 and a one-way valve head 208, the front part of the one-way valve seat 201 and the one-way valve head 208 are welded into a whole through ultrasonic waves, one end of the rubber diaphragm 207 is pressed between the one-way valve head 208 by the one-way valve seat 201, the other end of the rubber diaphragm 207 is contacted with the one-way valve head 208, gas enters from the opening part of the one-way valve head 208 and can form one-way motion when passing through the rubber diaphragm 207, the connector buckle 202 is placed inside the rear part of the one-way valve seat 201, the limiting ring 203 is assembled inside the one-way valve seat 201 and positioned in front part of the connector buckle 202 and is locked by a clamping groove inside the one-way valve seat 201, the first O-shaped sealing ring 204 and the second O-shaped sealing ring 206 are sequentially placed at the front end of the connector buckle 202, the support ring 205 is positioned between the first O-shaped seal ring 204 and the second O-shaped seal ring 206;
the middle part of the one-way valve head 208 is provided with a clamping bulge 20801;
the front part of the one-way valve head 208 is provided with a clamping convex second 20802.
Principle of operation
The anti-suck-back connector 2 is formed by welding a one-way valve seat 201 and a one-way valve head 208 into a whole in an ultrasonic mode, the rubber diaphragm 207 is pressed between the one-way valve heads 208 by the one-way valve seat 201, gas enters from the opening part of the one-way valve head 208 and can form one-way motion when passing through the rubber diaphragm 207, when the electric vacuum pump 1 stops vacuumizing, air from one side of the electric vacuum pump can be blocked by the rubber diaphragm 207 and cannot continuously enter a pipeline, the vacuum degree of the air entering a vacuum booster assembly or a vacuum tank is ensured, and impurities and dust in the air can enter the electric vacuum pump when the gas is prevented from being sucked backwards;
the inner O-shaped sealing ring 204 and the O-shaped sealing ring 206 can play a role in sealing between the anti-suck-back connector 2 and the electric vacuum pump 1, the support ring 205 can support the two O-shaped sealing rings to move when the anti-suck-back connector 2 is assembled with the electric vacuum pump 1, so that double-layer sealing is more reliable, the limiting ring 203 is assembled inside the one-way valve seat 201 and locked inside the one-way valve seat 201 by a clamping groove inside the one-way valve seat 201 to prevent internal parts from falling off during installation, and the connector buckle 202 is matched with an annular groove on an air inlet nozzle of the electric vacuum pump 1 to prevent the anti-suck-back connector 2 from falling off after installation; the first clamping protrusion 20801 of the unidirectional valve head 208 is arranged in the middle or the second clamping protrusion 20802 is arranged in the front according to the requirements of customers.
Claims (3)
1. The utility model provides a prevent suck-back car electric vacuum pump, includes electric vacuum pump, its characterized in that: prevent that suck-back connects and peg graft with electric vacuum pump, wherein prevent that suck-back connects and includes one-way disk seat, joint buckle, spacing ring, O type sealing washer one, the support ring, O type sealing washer two, rubber diaphragm and one-way valve head, one-way disk seat front portion passes through ultrasonic bonding as an organic whole with one-way valve head, one-way disk seat presses rubber diaphragm one end between one-way valve head, this rubber diaphragm's the other end and one-way valve head contact, gaseous entering from one-way valve head oral area, can form unidirectional motion when passing through rubber diaphragm, the joint buckle is placed inside the rear of one-way disk seat, the spacing ring assembly is inside and be located joint buckle front portion at one-way disk seat, by the inside draw-in groove locking of one-way disk seat, O type sealing washer one and O type sealing washer two are placed in proper order to joint buckle front end, the support ring is located between O type sealing washer one and O type sealing washer two.
2. The suck-back prevention automobile electric vacuum pump as claimed in claim 1, characterized in that: the middle part of the one-way valve head is provided with a first clamping bulge.
3. The suck-back prevention automobile electric vacuum pump as claimed in claim 1, characterized in that: the front part of the one-way valve head is provided with a clamping protrusion II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022570984.0U CN213928676U (en) | 2020-11-09 | 2020-11-09 | Suck-back-proof automobile electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022570984.0U CN213928676U (en) | 2020-11-09 | 2020-11-09 | Suck-back-proof automobile electric vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213928676U true CN213928676U (en) | 2021-08-10 |
Family
ID=77167021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022570984.0U Active CN213928676U (en) | 2020-11-09 | 2020-11-09 | Suck-back-proof automobile electric vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213928676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198287A (en) * | 2021-11-29 | 2022-03-18 | 吉林东光奥威汽车制动系统有限公司 | Assembling device for pump chamber of electric vacuum pump |
-
2020
- 2020-11-09 CN CN202022570984.0U patent/CN213928676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198287A (en) * | 2021-11-29 | 2022-03-18 | 吉林东光奥威汽车制动系统有限公司 | Assembling device for pump chamber of electric vacuum pump |
| CN114198287B (en) * | 2021-11-29 | 2024-05-17 | 吉林东光奥威汽车制动系统有限公司 | Assembling device for pump chamber of electric vacuum pump |
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