CN204250034U - Relay valve three speed switch - Google Patents
Relay valve three speed switch Download PDFInfo
- Publication number
- CN204250034U CN204250034U CN201420727923.2U CN201420727923U CN204250034U CN 204250034 U CN204250034 U CN 204250034U CN 201420727923 U CN201420727923 U CN 201420727923U CN 204250034 U CN204250034 U CN 204250034U
- Authority
- CN
- China
- Prior art keywords
- swivel
- groove
- conversion valve
- valve
- cylinder table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
A kind of relay valve three speed switch, comprise upper cover body, lower base, install conversion valve between lid and lower base, transformation relation on groove first, groove second on conversion valve and cylinder table between pore, this relay valve three speed switch, the full-shield of two air gates can be realized and wherein any one is given vent to anger, thus realize control to grade relay valve of three below, be applicable to respectively vehicle carry at heavy duty, mark, unloaded use.
Description
Technical field
The utility model relates to the technical field of brake system of car, particularly relates to a kind of relay valve three speed switch.
Background technology
Relay valve belongs to a part for automobile air brake brake system, and in the brake system of autotruck, relay valve plays Reaction time shorten and pressure setting time.The enterprising gas port of relay valve connects air receiver, and air extractor duct connects compressed air brake cylinder.When stepping on brake pedal, the output pressure of brake activation valve inputs as the control presssure of relay valve, under control presssure effect, air inlet valve is pushed open, so pressurized air just directly enters compressed air brake cylinder by admission port by air receiver, and do not need to flow through brake activation valve, this substantially reduces the loading line distance of compressed air brake cylinder, accelerates the gas replenishment process of compressed air brake cylinder, and then substantially reduces the reaction time of brake.Therefore relay valve is amplifying relay valve again.
Relay valve is used for the end of long pipe runs, makes the pressurized air of air receiver be full of compressed air brake cylinder fast, as in trailer or semitrailer brake system.In prior art, being generally the different area of thrust surface by utilizing large piston and valve piston, realizing opening the secondary of air inlet valve, thus soft braking when realizing unloaded is braked with high strength during heavy duty; Can only realize secondary change, adapt to heavy duty and unloaded two kinds of situations, but sometimes be in medium load due to lorry, existing relay valve and the parts controlling relay valve are not the situations of very applicable medium load, have much room for improvement.
Utility model content
The purpose of this utility model is: provide the relay valve three speed switch that a kind of structure is simple, easy to use.
The technical solution of the utility model is: a kind of relay valve three speed switch, comprise upper cover body, lower base, install conversion valve between lid and lower base, described lower base bottom is provided with an admission port and two air extractor ducts, the top of lower base is outstanding cylinder table, described upper cover body bottom is the sleeve mated with cylinder table, in sleeve, swivel is installed, stretching out Long Circle plug in the middle part of this swivel lower surface is inserted into inside the Long Circle pit of the coupling of conversion valve upper surface, upper cover body is stretched out on swivel top
Described conversion valve is between swivel lower surface and the upper surface of cylinder table, fit for sealing between conversion valve lower surface and the upper surface of cylinder table, this conversion valve is disc, conversion valve diameter mates with sleeve diameter, and conversion valve thickness mates with the distance between cylinder table upper surface, swivel lower surface;
The upper surface of described cylinder table is provided with and is communicated with two air extractor ducts with admission port respectively and is distributed on three pores in same semicircumference, and be provided with deflation hole at the upper surface center of cylinder table, this deflation hole passes lower base and is communicated with air,
The groove first of semicircular arc is provided with at the lower surface of conversion valve; The groove second of 1/4 circular arc is also provided with at the lower surface of conversion valve, flow guide recesses third is also provided with at the lower surface of conversion valve, this flow guide recesses third one end communication groove second, the circle centre position that the other end is positioned at conversion valve lower surface is corresponding with the deflation hole of cylinder table upper surface, groove first and groove second positioned opposite, groove first and groove second form circular annular region in rotary course to be had overlapping with three pores of cylinder table upper surface.
For piston area coordinates between swivel lateral surface with sleeve medial surface, the plug inside of swivel bottom is spring cavity, is provided with spring in spring cavity inside; The lower surface of described swivel is provided with annular groove, is provided with the upper pore penetrating conversion valve to top in described groove first, and on this, pore is communicated with annular groove inside.
What swivel top was downward is provided with several retainer spring chambeies, and inside is provided with the retainer spring of end band ball, the upper surface in the sleeve of upper cover body is provided with the location hole of coupling.
Be provided with hermetically-sealed construction between swivel upper side and upper cover body internal face, the internal face of cylinder table side and sleeve lower end is provided with hermetically-sealed construction.
Be connected by screw between upper cover body and lower base.
Be provided with at the sidepiece of upper cover body the gear display disc that level stretches out, the part that upper cover body is stretched out on swivel top is provided with the knob of band instruction.
Technique effect of the present utility model:
This relay valve three speed switch structure is simple, easy to use, three gears can be realized regulate, optional one of two air extractor ducts can be realized give vent to anger or any selection of three kinds of operating modes that two air extractor ducts all hold one's breath, significantly can promote the comformability of relay valve, adapt to different load conditions.
Accompanying drawing explanation
Fig. 1 is that the master of relay valve three speed switch looks cross-sectional view;
Fig. 2 is that cross-sectional view is looked on a left side for relay valve three speed switch;
Fig. 3 is the plan structure schematic diagram of relay valve three speed switch;
Fig. 4 is the B-B cross-sectional view of Fig. 2;
Fig. 5 is the A-A cross-sectional view of Fig. 1;
Fig. 6 is that the master of conversion valve looks cross-sectional view;
Fig. 7 is that a left side for conversion valve is depending on looking cross-sectional view;
Fig. 8 is one of perspective view of conversion valve;
Fig. 9 is the perspective view two of conversion valve;
Figure 10 is the position view of relay valve conversion valve of this three speed switch when heavy duty;
Figure 11 is the position view of relay valve conversion valve of this three speed switch when mark carries;
Figure 12 is the position view of relay valve conversion valve of this three speed switch when zero load;
The sleeve of 1. knobs, 2. swivel, 3. gear display disc, 4. ball, 5. retainer spring, 6. plug, 7. retainer spring chamber, 8. upper cover body, 9. spring cavity, 10. spring, 11. conversion valves, 12. lower bases, 13. deflation holes, 14. screws, 15. air extractor ducts, 16. admission ports, 17. pores, 18. upper cover body in figure.
11-1. Long Circle pit, the upper pore of 11-2., 11-3. groove second, 11-4. groove third, 11-5. groove first.
Detailed description of the invention
Embodiment: see Fig. 1-9, a kind of relay valve three speed switch in figure, comprise upper cover body, lower base, install the conversion valve between lid and lower base, described lower base bottom is provided with an admission port and two air extractor ducts, the top of lower base is outstanding cylinder table, described upper cover body bottom is the sleeve mated with cylinder table, in sleeve, swivel is installed, stretching out Long Circle plug in the middle part of this swivel lower surface is inserted into inside the Long Circle pit of the coupling of conversion valve upper surface, upper cover body is stretched out on swivel top, described conversion valve is between swivel lower surface and the upper surface of cylinder table, fit for sealing between conversion valve lower surface and the upper surface of cylinder table, this conversion valve is disc, conversion valve diameter mates with sleeve diameter, conversion valve thickness and cylinder table upper surface, distance coupling between swivel lower surface, the upper surface of described cylinder table is provided with and is communicated with two air extractor ducts with admission port respectively and is distributed on three pores in same semicircumference, deflation hole is provided with at the upper surface center of cylinder table, this deflation hole passes lower base and is communicated with air, is provided with the groove first of semicircular arc at the lower surface of conversion valve, the groove second of 1/4 circular arc is also provided with at the lower surface of conversion valve, flow guide recesses third is also provided with at the lower surface of conversion valve, this flow guide recesses third one end communication groove second, the circle centre position that the other end is positioned at conversion valve lower surface is corresponding with the deflation hole of cylinder table upper surface, groove first and groove second positioned opposite, groove first and groove second form circular annular region in rotary course to be had overlapping with three pores of cylinder table upper surface.
For piston area coordinates between swivel lateral surface with sleeve medial surface, the plug inside of swivel bottom is spring cavity, is provided with spring in spring cavity inside; The lower surface of described swivel is provided with annular groove, is provided with the upper pore penetrating conversion valve to top in described groove first, and on this, pore is communicated with annular groove inside.
What swivel top was downward is provided with several retainer spring chambeies, and inside is provided with the retainer spring of end band ball, the upper surface in the sleeve of upper cover body is provided with the location hole of coupling.
Be provided with hermetically-sealed construction between swivel upper side and upper cover body internal face, the internal face of cylinder table side and sleeve lower end is provided with hermetically-sealed construction.Be connected by screw between upper cover body and lower base.
Be provided with at the sidepiece of upper cover body the gear display disc that level stretches out, the part that upper cover body is stretched out on swivel top is provided with the knob of band instruction.
See Figure 10-12, it is the transformation relation on groove first, groove second on conversion valve and cylinder table between pore shown in figure, this relay valve three speed switch, the full-shield of two air gates can be realized and wherein any one is given vent to anger, thus realize control to grade relay valve of three below, be applicable to respectively vehicle carry at heavy duty, mark, unloaded use.
Claims (6)
1. a relay valve three speed switch, comprise upper cover body, lower base, install conversion valve between lid and lower base, it is characterized in that: described lower base bottom is provided with an admission port and two air extractor ducts, the top of lower base is outstanding cylinder table, described upper cover body bottom is the sleeve mated with cylinder table, in sleeve, swivel is installed, stretching out Long Circle plug in the middle part of this swivel lower surface is inserted into inside the Long Circle pit of the coupling of conversion valve upper surface, upper cover body is stretched out on swivel top
Described conversion valve is between swivel lower surface and the upper surface of cylinder table, fit for sealing between conversion valve lower surface and the upper surface of cylinder table, this conversion valve is disc, conversion valve diameter mates with sleeve diameter, and conversion valve thickness mates with the distance between cylinder table upper surface, swivel lower surface;
The upper surface of described cylinder table is provided with and is communicated with two air extractor ducts with admission port respectively and is distributed on three pores in same semicircumference, and be provided with deflation hole at the upper surface center of cylinder table, this deflation hole passes lower base and is communicated with air,
The groove first of semicircular arc is provided with at the lower surface of conversion valve; The groove second of 1/4 circular arc is also provided with at the lower surface of conversion valve, flow guide recesses third is also provided with at the lower surface of conversion valve, this flow guide recesses third one end communication groove second, the circle centre position that the other end is positioned at conversion valve lower surface is corresponding with the deflation hole of cylinder table upper surface, groove first and groove second positioned opposite, groove first and groove second form circular annular region in rotary course to be had overlapping with three pores of cylinder table upper surface.
2. relay valve three speed switch according to claim 1, is characterized in that: for piston area coordinates between swivel lateral surface with sleeve medial surface, and the plug inside of swivel bottom is spring cavity, is provided with spring in spring cavity inside; The lower surface of described swivel is provided with annular groove, is provided with the upper pore penetrating conversion valve to top in described groove first, and on this, pore is communicated with annular groove inside.
3. relay valve three speed switch according to claim 1, it is characterized in that: what swivel top was downward is provided with several retainer spring chambeies, inside is provided with the retainer spring of end band ball, the upper surface in the sleeve of upper cover body is provided with the location hole of coupling.
4. relay valve three speed switch according to claim 1, it is characterized in that: be provided with hermetically-sealed construction between swivel upper side and upper cover body internal face, the internal face of cylinder table side and sleeve lower end is provided with hermetically-sealed construction.
5. relay valve three speed switch according to claim 1, is characterized in that: be connected by screw between upper cover body and lower base.
6. relay valve three speed switch according to claim 1, is characterized in that: be provided with at the sidepiece of upper cover body the gear display disc that level stretches out, and the part that upper cover body is stretched out on swivel top is provided with the knob of band instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727923.2U CN204250034U (en) | 2014-11-28 | 2014-11-28 | Relay valve three speed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727923.2U CN204250034U (en) | 2014-11-28 | 2014-11-28 | Relay valve three speed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250034U true CN204250034U (en) | 2015-04-08 |
Family
ID=52954366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420727923.2U Withdrawn - After Issue CN204250034U (en) | 2014-11-28 | 2014-11-28 | Relay valve three speed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204250034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627157A (en) * | 2014-11-28 | 2015-05-20 | 昌通科技有限公司 | Three-gear change-over switch for relay valve |
-
2014
- 2014-11-28 CN CN201420727923.2U patent/CN204250034U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627157A (en) * | 2014-11-28 | 2015-05-20 | 昌通科技有限公司 | Three-gear change-over switch for relay valve |
| CN104627157B (en) * | 2014-11-28 | 2017-04-12 | 昌通科技有限公司 | Three-gear change-over switch for relay valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |