CN204628140U - Combination brake switch and proporting - Google Patents
Combination brake switch and proporting Download PDFInfo
- Publication number
- CN204628140U CN204628140U CN201520300142.XU CN201520300142U CN204628140U CN 204628140 U CN204628140 U CN 204628140U CN 201520300142 U CN201520300142 U CN 201520300142U CN 204628140 U CN204628140 U CN 204628140U
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- China
- Prior art keywords
- valve
- pod apertures
- valve body
- safety
- proporting
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Abstract
The utility model relates to combination brake switch and proporting technical field, specifically a kind of combination brake switch and proporting be made up of safety valve, one-way valve and precursor overflow valve.Safety valve in combination brake switch and proporting is located at the left side of valve body, and one-way valve is located at the centre of valve body, is used for connection safety valve and precursor overflow valve, and precursor overflow valve is located at the right side of valve body.Its valve body is provided with pod apertures A and pod apertures B, and pod apertures A connects precursor overflow valve and one-way valve; Pod apertures B connects one-way valve and safety valve.The utility model compensate for the deficiencies in the prior art part, and achieving safety valve has pressure stabilization function to precursor overflow valve, precursor overflow valve year safety valve have the effect of opening rapidly.Combination brake switch and proporting described in the utility model is structure as a whole, and have structure simple, easy to maintenance, leakage rate is low, responds the advantages such as fast.
Description
Technical field
The utility model relates to hydraulic control valve technical field, particularly relates to a kind of combined valve device, specifically a kind of combination brake switch and proporting be made up of safety valve, one-way valve and precursor overflow valve.
Background technique
Control unit in order to control hydrodynamic pressure, flow and flow direction in hydraulic system is generically and collectively referred to as hydraulic control valve, referred to as valve.Their performance determines the performance of whole hydraulic system to a great extent.Due to the instability of pump feed flow in existing most of hydraulic system, easily cause the fluctuation wild effect of fluid pressure in hydraulic system, so be usually equipped with pressure regulator valve and safety valve to the pressure maintaining system steadily and safety, the number of two kinds of valves is more even sometimes.This just causes valve more complicated in the process connected, and is not easy to installation and the maintenance of system.Simultaneously the number of valve is more, causes leakage problem will be more serious, makes stability and the practicability reduction of system.
A kind of combination brake switch and proporting that the utility model provides is the zoarium of three kinds of valves, by this new structure, reaches and takes up room little, simplify the object of system, performance has simultaneously leakage rate little, respond the advantages such as fast, more excellent in traditional effect separately using valve.
Summary of the invention
Technical problem to be solved in the utility model makes up the deficiencies in the prior art, provides a kind of structure simple, easy to maintenance, respond fast novel compositions valve.
Technical problem to be solved in the utility model realizes by following technological scheme.
By a kind of combination brake switch and proporting provided by the utility model, be made up of valve body, safety valve, precursor overflow valve, one-way valve, pod apertures A, pod apertures B, liquid entering hole and two liquid outlets; Described safety valve is located at the left side of valve body; Precursor overflow valve is located at the right side of valve body; One-way valve is located at the centre of valve body; Pod apertures A and pod apertures B is all located on valve body, and wherein pod apertures A one end is connected with precursor overflow valve, and one end is as the liquid entering hole of one-way valve; Pod apertures B one end is the liquid outlet of one-way valve, and one end is as the liquid entering hole of safety valve; The right-hand member of valve body is provided with liquid entering hole and second liquid outlet of precursor overflow valve, and left end is provided with the first liquid outlet of safety valve.
Described safety valve is made up of adjusting bolt, safety spring, packing ring and spool, and described adjusting bolt is located at above valve body, and its lower end has groove; Packing ring is located in adjusting bolt hole, to limit the position of adjusting bolt, prevents safety spring to be stuck; Safety spring one end is connected with spool, and one end is connected with adjusting bolt groove; Spool acts on pod apertures B.
Described one-way valve is made up of pretension bolt, nut, soft spring, spool, seal washer and damping hole; Described pretension bolt is located at the below of valve body, and be with valve body and nut and be threaded, the end of pretension bolt is provided with groove; Pretension bolt hole inner end is set to trapezoid shaped; Soft spring one end is connected with spool, and one end is connected with pretension bolt; The valve body of one-way valve valve pocket side has damping hole, and spool acts on pod apertures A.
Described precursor overflow valve is located at the right side of valve body, is made up of pilot valve, main spool spring, main valve plug, damping hole and two conduction holes.Described pilot valve is located at the top of main valve, and pilot valve liquid entering hole is connected with pod apertures A, is provided with conduction hole in pilot valve valve pocket.Described main valve plug one end is connected with valve body, and one end is connected with main valve plug; Groove is provided with, for fixing main spool spring in main valve plug; Have conduction hole in main valve plug, be connected with liquid outlet.
Described main valve plug and safety valve spool are equipped with groove, for fixing connected spring.
Various spool described in the utility model all preferentially selects taper valve core.
Safety valve, one-way valve and precursor overflow valve combine by the utility model, form the combination brake switch and proporting of new structure, realize safety valve in combination brake switch and proporting by the helpful voltage stabilizing function of the pressure regulation of one-way valve to precursor overflow valve, and the effect that precursor overflow valve also can make safety valve open rapidly when system overpressure by one-way valve reaches voltage stabilizing to hydraulic system and the double-deck function of safety.There is leakage rate little simultaneously, respond the advantages such as fast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1. valve body; 2. safety valve; 3. precursor overflow valve; 4. one-way valve; 5. pod apertures A; 6. pod apertures B; 7. liquid entering hole; 8. the first liquid outlet; 9. the second liquid outlet; 21. adjusting bolts; 22. safety springs; 23. packing rings; 24. spools; 31. pilot valves; 32. main spool springs; 33. main valve plugs; 34. damping holes; 35. conduction holes; 36. conduction holes; 41. pretension bolts; 42. nuts; 43. soft springs; 44. spools; 45. seal washers; 46. damping holes.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Be illustrated in figure 1 the structural representation of the utility model combination brake switch and proporting, be made up of valve body 1, safety valve 2, precursor overflow valve 3, one-way valve 4, pod apertures A5, pod apertures B6, liquid entering hole 7, first liquid outlet 8 and the second liquid outlet 9; Described safety valve 2 is located at the left side of valve body 1; Precursor overflow valve 3 is located at the right side of valve body 1; One-way valve 4 is located at the centre of valve body 1; Pod apertures A5 and pod apertures B6 is all located on valve body 1, and wherein pod apertures A5 one end is connected with precursor overflow valve 3, and one end is as the liquid entering hole of one-way valve 4; Pod apertures B6 one end is the liquid outlet of one-way valve 4, and one end is as the liquid entering hole of safety valve 2; The right-hand member of valve body 1 is provided with liquid entering hole 7 and second liquid outlet 9 of precursor overflow valve 3, and left end is provided with the first liquid outlet 8 of safety valve 2.
As shown in Figure 1, described safety valve 2 is made up of adjusting bolt 21, safety spring 22, packing ring 23 and valve 24 core, and described adjusting bolt 21 is located at above valve body 1, and its lower end has groove; Packing ring 23 is located in adjusting bolt hole, to limit the position of adjusting bolt 21, prevents safety spring 22 to be stuck; Safety spring 22 one end is connected with spool 24, and one end is connected with adjusting bolt groove; Spool 24 acts on pod apertures B6.
As shown in Figure 1, described one-way valve 4 is made up of pretension bolt 41, nut 42, soft spring 43, spool 44, seal washer 45 and damping hole 46; Described pretension bolt 41 is located at the below of valve body 1, is is threaded with valve body 1 and nut 42; Pretension bolt 41 end is provided with groove, so that fixing soft spring 43; Pretension bolt hole is trapezoid shaped, prevents soft spring 43 to be stuck; Soft spring 43 one end is connected with spool 44, and one end is connected with pretension bolt 41; The valve body 1 of one-way valve 4 valve pocket side has damping hole 46, and spool 44 acts on pod apertures A5.
Its specific works process is as follows:
Working liquid body enters the valve pocket of precursor overflow valve 3 from liquid entering hole 7, enters pod apertures A5 inner through damping hole 34.Simultaneously because the spring force of soft spring 43 is less, the spool 44 of one-way valve 4 can be opened under the effect of fluid pressure, and make liquid enter pod apertures B6, the damping hole 46 simultaneously on valve body 1 enters in the valve pocket of one-way valve 4.When the fluid pressure in pod apertures A5 is greater than the spring force of pilot valve spring of pilot valve 31, pilot valve is opened, and now the both sides of main valve plug 33 exist pressure difference.Main valve plug 33 is opened under the effect of pressure difference, and liquid flows out from the second liquid outlet 9.And the conduction hole 35 of the valve intracavity liquid of pilot valve 31 on valve body 1 flows into main valve valve pocket, then the conduction hole 36 on main valve plug 33 overflows.
Under the effect of damping hole 46, make the fluid pressure effect that spool 44 two ends are subject in pod apertures A5 and pod apertures B6 respectively, only when the pressure of pod apertures A 5 is greater than the pressure of pod apertures B6, spool 44 is just opened, and now safety valve 2 will to the effect arriving first the helpful pressure regulation of relief valve 3 by one-way valve 4.
When the pressure of liquid entering hole 7 continues to increase, the pressure at pod apertures B6 place also can increase thereupon.When the fluid pressure at pod apertures B6 place is greater than the spring force of safety spring 22 of safety valve 2, the spool 24 of safety valve 2 is opened rapidly, makes the liquid in pod apertures B6 flow out valve pocket along the first liquid outlet 8.The now pressure drop at pod apertures B6 place, the liquid in pod apertures A5 can be opened spool 44 and flow in pod apertures B6 and fill up, and the liquid in system will be made so constantly to overflow, until pressure maintains within the scope of setting safety pressure.In this process, precursor overflow valve 3 has the effect of opening rapidly by one-way valve 4 pairs of safety valves 2, ensure that the safety of system pressure and stablizes.
More than show and describe basic principle of the present utility model, major character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. combination brake switch and proporting, is made up of valve body (1), safety valve (2), precursor overflow valve (3), one-way valve (4), pod apertures A (5), pod apertures B (6), liquid entering hole (7), the first liquid outlet (8) and the second liquid outlet (9); It is characterized in that: described safety valve (2) is located at the left side of valve body (1); Precursor overflow valve (3) is located at the right side of valve body (1); One-way valve (4) is located at the centre of valve body (1); Pod apertures A (5) and pod apertures B (6) is all located on valve body (1), and wherein pod apertures A (5) one end is connected with precursor overflow valve (3), and one end is as the liquid entering hole of one-way valve (4); Pod apertures B (6) one end is the liquid outlet of one-way valve (4), and one end is as the liquid entering hole of safety valve (2); The right-hand member of valve body (1) is provided with liquid entering hole (7) and second liquid outlet (9) of precursor overflow valve (3), and left end is provided with first liquid outlet (8) of safety valve (2).
2. according to the combination brake switch and proporting described in claim 1, it is characterized in that: described safety valve (2) is made up of adjusting bolt (21), safety spring (22), packing ring (23) and spool (24), described adjusting bolt (21) is located at valve body (1) top, and its lower end has groove; Packing ring (23) is located in adjusting bolt hole; Safety spring (22) one end is connected with spool (24), and one end is connected with adjusting bolt groove; Spool (24) acts on pod apertures B (6).
3. according to the combination brake switch and proporting described in claim 1, it is characterized in that: described one-way valve (4) is made up of pretension bolt (41), nut (42), soft spring (43), spool (44), seal washer (45) and damping hole (46); Described pretension bolt (41) is located at the below of valve body (1), and be with valve body (1) and nut (42) and be threaded, the end of pretension bolt (41) is provided with groove; Pretension bolt hole inner end is set to trapezoid shaped; Soft spring (43) one end is connected with spool (44), and one end is connected with pretension bolt (41); Damping hole (46) is located on valve body (1), and spool (44) acts on pod apertures A (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300142.XU CN204628140U (en) | 2015-05-11 | 2015-05-11 | Combination brake switch and proporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300142.XU CN204628140U (en) | 2015-05-11 | 2015-05-11 | Combination brake switch and proporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628140U true CN204628140U (en) | 2015-09-09 |
Family
ID=54047176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520300142.XU Expired - Fee Related CN204628140U (en) | 2015-05-11 | 2015-05-11 | Combination brake switch and proporting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628140U (en) |
-
2015
- 2015-05-11 CN CN201520300142.XU patent/CN204628140U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |