CN208295002U - A kind of internal respiration structure spring brake chamber - Google Patents
A kind of internal respiration structure spring brake chamber Download PDFInfo
- Publication number
- CN208295002U CN208295002U CN201820097724.6U CN201820097724U CN208295002U CN 208295002 U CN208295002 U CN 208295002U CN 201820097724 U CN201820097724 U CN 201820097724U CN 208295002 U CN208295002 U CN 208295002U
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- piston
- valve seat
- valve
- piston tube
- brake chamber
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Abstract
The utility model relates to field of automobile brake, more particularly to a kind of internal respiration structure spring brake chamber, piston tube including end opening closed at one end and another, it is stuck in the valve seat of piston tube closed end, the valve rod being arranged in the middle part of valve seat, it is connected to the valve body of valve rod one end and is connected to the piston of the valve rod other end, the piston is between valve seat and the closed end of piston tube, card has spring between piston and the closed end of piston tube, gap between the valve body and valve seat forms airflow channel when opening, valve seat and piston tube respectively correspond the valve seat stomata and piston tube stomata for being provided with and being connected to airflow channel.In service brake, prevent the intracavitary gas of service brake from entering parking chamber, when implementing parking braking and releasing parking braking, the gas of parking spring cavity being capable of smooth discharge and compensation, when implementing service brake under parked state, energy rapid-closure damper under low pressure operating condition, prevents compressed air from entering parking spring cavity.
Description
Technical field
The utility model relates to field of automobile brake more particularly to a kind of internal respiration structure spring brake chambers.
Background technique
Traditional internal respiration structure is assembled by piston tube and breather valve through being threadedly coupled, and traditional internal respiration valve is due to structure
The shortcomings that reason, closing pressure is higher, this structure: it first is that valve cannot be closed in time after driving chamber sealing ring damage, leads
Compressed air is caused to scurry into spring cavity, second is that compressed air is easily accessible spring cavity, leads when implementing service brake under parked state
It causes to release braking slowly, causes to drag brake phenomenon.Another disadvantage is that breather valve screw thread loosens after multiple braking, lead to gas leakage,
Even breather valve falls off, assembly failure.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of internal respiration
Structure spring brake chamber.
The utility model is to be achieved by the following technical programs:
A kind of internal respiration structure spring brake chamber, the piston tube including end opening closed at one end and another are stuck in piston
The valve seat at duct occlusion end, the valve rod being arranged in the middle part of valve seat, is connected to the valve body of valve rod one end and is connected to the valve rod other end
Piston, the piston between valve seat and the closed end of piston tube, between piston and the closed end of piston tube card have spring,
Gap between the valve body and valve seat forms airflow channel when opening, valve seat and piston tube, which respectively correspond, to be provided with and airflow channel
The valve seat stomata and piston tube stomata of connection.
Barrier is equipped in the middle part of the valve base cavity, the barrier side is equipped with the annular inner conical surface being bonded with valve body.
The annular inner conical surface card of the valve body and valve seat has the first O-ring seal.
The piston includes piston part and bar portion, the bar portion ring set valve rod setting of piston, valve rod piston bar portion end with
Ring set has washer between valve body.
Washer two sides card has the second O-ring seal.
The piston part ring Zhou Kaiyou sealing ring card slot of the piston, the interior card of sealing ring card slot have K-type sealing ring.
The bar portion of piston shape at the baffle position of valve seat is hexagonal prisms.
The valve rod passes through the piston part of piston and is fixed by stop nut.
The binding face of the valve seat and valve body is annular inner conical surface.
Two seals card slot is equipped on the outside of the valve seat, card has third O-shaped between two seals card slot and piston tube
Sealing ring is recessed diversion cavity between two seals card slot, and valve seat stomata is connected to by diversion cavity with piston tube stomata.
The beneficial effects of the utility model are:
It in service brake, prevents the intracavitary gas of service brake from entering parking chamber, implement parking braking and releases parking system
When dynamic, the gas of parking spring cavity can smooth discharge and compensation, when implementing service brake under parked state, under low pressure operating condition
Energy rapid-closure damper, prevents compressed air from entering parking spring cavity.
Detailed description of the invention
Fig. 1 is the cross-sectional view of this structure.
Fig. 2 is normal driving states, structure sectional view of this structure in parking piston.
Fig. 3, Fig. 4 are parking braking state, structure sectional view of this structure in parking piston.
Fig. 5 is parking braking state, partial structure sectional view of this structure when airflow channel is closed.
In figure: 1. piston tubes, 2. valve seats, 3. pistons, 4. valve rods, 5.K type sealing ring, 6. stop nuts, 7. springs, 8.
Three O-ring seals, 9. washers, 10. second O-ring seals, 11. first O-ring seals, 12. inner shield rings, 13. brake pistons,
14. the 4th O-ring, 15. parking pistons, 16. tripping springs, 17. brake pistons.
A. piston tube stomata, b. valve seat stomata, c. airflow channel, A. spring cavity, B. parking chamber, C. driving chamber, D. water conservancy diversion
Chamber.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing
The utility model is described in further detail with most preferred embodiment.
As shown, the utility model includes the piston tube 1 of end opening closed at one end and another, it is stuck in piston tube closed end
Valve seat 2, the valve rod 4 being arranged in the middle part of the valve seat is connected to the valve body 17 of valve rod one end and is connected to the work of the valve rod other end
Plug 3, the piston is between valve seat and the closed end of piston tube, and card has spring 7, institute between piston and the closed end of piston tube
It states and forms airflow channel when the gap between valve body and valve seat is opened, valve seat and piston tube respectively correspond to be provided with to be connected with airflow channel
Logical valve seat stomata b and piston tube stomata a.
Piston tube is open at one end, closed at one end, and closing side end card has a valve seat, piston tube on the outside of valve seat in be cased with by
The inner shield ring 12 that valve seat blocks.
It is equipped with barrier in the middle part of valve base cavity, there is circular hole among baffle, valve rod passes through circular hole, and baffle is close to piston tube closed end
For installing control piston, the baffle other side is the annular inner conical surface being bonded with valve body, the gap between baffle and valve seat for side
With the mobile opening of valve body or closing, gap forms airflow channel c when opening；
The annular inner conical surface card of valve body and valve seat has the first O-ring seal 11.
Piston includes piston part and bar portion, and the bar portion ring set valve rod setting of piston, valve rod is in the bar portion end of piston and valve body
Between ring set have washer 9.Washer two sides card has the second O-ring seal 10.
Valve rod passes through the piston part of piston and is fixed by stop nut 6, has aperture among valve rod 4, lives for releasing control
The back pressure of plug, card has spring 7 between the plug ladder outside of piston and the closing end of piston tube, and 7 force value size of spring determines to close
Pressure.Air-flow passes through through piston tube stomata a, valve seat stomata b, airflow channel c, when pressure, which reaches, overcomes 7 power of spring enough, valve
Bar moves right with control piston component, and valve port c is closed, and after air pressure drops to setting value, spring 7 resets, and controls piston 3 and valve
The combination of bar 4 is moved to the left, and valve port c is opened.
The piston part ring Zhou Kaiyou sealing ring card slot of piston, the interior card of sealing ring card slot have K-type sealing ring 5.
The bar portion of piston shape at the baffle position of valve seat is that the circular hole among hexagonal prisms, with baffle forms airflow channel
And it is oriented to.
Two seals card slot is equipped on the outside of valve seat, card has the O-shaped sealing of third between two seals card slot and piston tube
8 are enclosed, is recessed diversion cavity D between two seals card slot, valve seat stomata is connected to by diversion cavity with piston tube stomata.
In conjunction with Fig. 2, piston tube assembly is pressed into 15 interstitial hole of parking piston, and the middle body of parking piston is on the outside of piston tube
Equipped with the 4th O-ring 14 of twice；
Position shown in Fig. 2 is normal driving states, fills compressed air in parking chamber B, tripping spring 16 is compressed, piston
Piston tube stomata a on pipe 1 is driven a vehicle by inflating into driving chamber C at this time among the 4th O-ring 14 of twice of middle body
Braking, due to the sealing function of the 4th O-ring 14, compressed air will not scurry into spring cavity A.
In conjunction with Fig. 3, the compressed air in parking chamber B is discharged, the stretching, extension of tripping spring 16 pushes brake piston 13 to move right
It is braked, the piston tube stomata a in piston tube 1 is in driving chamber C, and air is in the direction of the arrow via piston tube stomata a, valve
Seat stomata b, airflow channel c flow to spring cavity A and compensate.
It is inflated into parking chamber B, compressed air acts on brake piston 13, compresses tripping spring 16 to the left, and spring cavity A is empty
Between reduce, the air in spring cavity A is discharged to driving via piston tube stomata a, valve seat stomata b, airflow channel c in the direction of the arrow
Chamber C.
In conjunction with Fig. 4, under parking braking state, to driving chamber C inflation, compressed air is through 1 upper piston pipe stomata of piston tube
A, valve seat stomata b reaches diversion cavity, and compressed air enters pressure caused by diversion cavity and pushes piston, so that piston overpowers bullet
The precompression of spring 7 is mobile towards the closed end of piston tube, while pulling valve rod and valve body mobile, so that valve body is bonded with baffle,
Airflow channel c is closed and realizes sealing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of internal respiration structure spring brake chamber, which is characterized in that the piston tube including end opening closed at one end and another,
It is stuck in the valve seat of piston tube closed end, the valve rod being arranged in the middle part of valve seat is connected to the valve body of valve rod one end and is connected to valve
The piston of the bar other end, the piston is between valve seat and the closed end of piston tube, between piston and the closed end of piston tube
Card has spring, and the gap between the valve body and valve seat forms airflow channel when opening, and valve seat and piston tube, which respectively correspond, to be provided with
The valve seat stomata and piston tube stomata being connected to airflow channel.
2. a kind of internal respiration structure spring brake chamber according to claim 1, which is characterized in that in the valve base cavity
Portion is equipped with barrier, and the barrier side is equipped with the annular inner conical surface being bonded with valve body.
3. a kind of internal respiration structure spring brake chamber according to claim 2, which is characterized in that the valve body and valve seat
Annular inner conical surface card have the first O-ring seal.
4. a kind of internal respiration structure spring brake chamber according to claim 2 or 3, which is characterized in that the piston packet
Piston part and bar portion, the bar portion ring set valve rod setting of piston are included, valve rod ring set between the bar portion end of piston and valve body has washer.
5. a kind of internal respiration structure spring brake chamber according to claim 4, which is characterized in that washer two sides card
There is the second O-ring seal.
6. a kind of internal respiration structure spring brake chamber according to claim 5, which is characterized in that the piston part of the piston
Ring Zhou Kaiyou sealing ring card slot, the interior card of sealing ring card slot have K-type sealing ring.
7. a kind of internal respiration structure spring brake chamber according to claim 6, which is characterized in that the bar portion of the piston
Shape is hexagonal prisms at the baffle position of valve seat.
8. a kind of internal respiration structure spring brake chamber according to claim 7, which is characterized in that the valve rod, which passes through, lives
The piston part of plug is simultaneously fixed by stop nut.
9. according to claim 1, a kind of internal respiration structure spring brake chamber, feature described in any one of 2,3,5,7,8
It is, the binding face of the valve seat and valve body is annular inner conical surface.
10. a kind of internal respiration structure spring brake chamber according to claim 9, which is characterized in that on the outside of the valve seat
Equipped with two seals card slot, card has third O-ring seal, two seals card slot between two seals card slot and piston tube
Between be recessed diversion cavity, valve seat stomata is connected to by diversion cavity with piston tube stomata.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820097724.6U CN208295002U (en) | 2018-01-19 | 2018-01-19 | A kind of internal respiration structure spring brake chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820097724.6U CN208295002U (en) | 2018-01-19 | 2018-01-19 | A kind of internal respiration structure spring brake chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295002U true CN208295002U (en) | 2018-12-28 |
Family
ID=64697968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820097724.6U Active CN208295002U (en) | 2018-01-19 | 2018-01-19 | A kind of internal respiration structure spring brake chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410437A (en) * | 2019-07-22 | 2019-11-05 | 嘉兴盛鼎机械有限公司 | Brake chamber with balancing valve structure |
| CN114278687A (en) * | 2021-11-15 | 2022-04-05 | 西安航空制动科技有限公司 | Marine environment resistant air pressure brake valve |
-
2018
- 2018-01-19 CN CN201820097724.6U patent/CN208295002U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410437A (en) * | 2019-07-22 | 2019-11-05 | 嘉兴盛鼎机械有限公司 | Brake chamber with balancing valve structure |
| CN110410437B (en) * | 2019-07-22 | 2024-02-06 | 嘉兴盛鼎机械有限公司 | Brake chamber with balanced valve structure |
| CN114278687A (en) * | 2021-11-15 | 2022-04-05 | 西安航空制动科技有限公司 | Marine environment resistant air pressure brake valve |
| CN114278687B (en) * | 2021-11-15 | 2023-06-30 | 西安航空制动科技有限公司 | Ocean environment-resistant pneumatic brake valve |
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