CN204553393U - Selection type bidirectional relief valve - Google Patents
Selection type bidirectional relief valve Download PDFInfo
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- CN204553393U CN204553393U CN201520246712.1U CN201520246712U CN204553393U CN 204553393 U CN204553393 U CN 204553393U CN 201520246712 U CN201520246712 U CN 201520246712U CN 204553393 U CN204553393 U CN 204553393U
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- filler opening
- spool
- valve body
- holding cavity
- relief valve
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Abstract
A kind of selection type bidirectional relief valve.The hydraulic circuit solving existing rotary system needs the problem of two relief valve smooth pressure.It comprises the first valve body and the second valve body, the first holding cavity is provided with in the first described valve body, slip guiding sleeve is provided with in the first described holding cavity, the first spool is provided with in described slip guiding sleeve, the first described valve body is provided with the first filler opening, second filler opening, 3rd filler opening and drain tap, the oil suction chamber that first holding cavity is divided into control chamber and is connected with the first filler opening by the first described spool, the first described spool separates the second filler opening and the 3rd filler opening primary importance when having work and the pressure oil by control chamber promote the second place that the second filler opening is connected with the 3rd filler opening, the second holding cavity be connected with pressure relief opening is provided with in the second described valve body.It is simple that the utility model also has structure, and production and processing is convenient, and stationarity is good, sealing advantages of higher.
Description
Technical field
The utility model relates to a kind of relief valve, is specifically related to a kind of selection type bidirectional relief valve.
Background technique
Relief valve is a kind of hydraulic pressure
pressure controlled valve, in hydraulic equipment, mainly play level pressure overflow, voltage stabilizing, system unloaded and safety protection.In the hydraulic circuit of rotary system, usually need to arrange two between rotary buffering valve with rotary motor side by side and flow to contrary relief valve, but in actual production process, increasing by two extra relief valves easily makes the sealability of product be deteriorated, also make the volume of product become large simultaneously, be unfavorable for the installation of product.
Summary of the invention
For the hydraulic circuit solving existing rotary system in background technique needs the problem of two relief valve smooth pressure, the utility model provides a kind of selection type bidirectional relief valve.
The technical solution of the utility model is: a kind of selection type bidirectional relief valve, comprise the first valve body and the second valve body, the first holding cavity is provided with in the first described valve body, slip guiding sleeve is provided with in the first described holding cavity, the first spool coordinated with slip guiding sleeve slippage is provided with in described slip guiding sleeve, the first described valve body is provided with the first filler opening, second filler opening, 3rd filler opening and drain tap, the oil suction chamber that first holding cavity is divided into control chamber and is connected with the first filler opening by the first described spool, the first described spool is provided with shuttle valve, the filler opening of shuttle valve and the second filler opening, 3rd filler opening is connected, the oil outlet of shuttle valve is connected with control chamber, the first described spool separates the second filler opening and the 3rd filler opening primary importance when having work and the pressure oil by control chamber promote the second place that the second filler opening is connected with the 3rd filler opening, the second holding cavity be connected with drain tap is provided with in the second described valve body, the second spool is provided with in the second described holding cavity, the second described spool has the primary importance that oil suction chamber is connected with the second holding cavity and the second place separating oil suction chamber and the second holding cavity.
Improve as one of the present utility model, be provided with pressure spring in the first described holding cavity, described pressure spring has the movement tendency making the first spool to control chamber slippage.
As further improvement of the utility model, the first described spool comprises sealed department and interconnecting part, and the section area of described sealed department is greater than the section area of interconnecting part.
As further improvement of the utility model, the first described spool is provided with the first circular groove and the second circular groove that are connected with the second filler opening, the first described circular groove is connected by gap slot with the second circular groove, and the second described circular groove is connected with the 3rd filler opening when the first spool is in the second place.
As further improvement of the utility model, the first described spool is provided with the through hole that shuttle valve is connected with control chamber.
As further improvement of the utility model, be connected with oil suction chamber by the damping hole be arranged on the second valve body when the second described holding cavity is in primary importance.
As further improvement of the utility model, the second described valve body is connected with the first valve body screw thread.
As further improvement of the utility model, the second described spool is tapered.
The beneficial effects of the utility model are, by the first valve body, the second valve body, the first spool and the second spool structure, make this product can pressure in realizing balanced rotation system hydraulic circuit, realize bidirectional flooding, the effect of two-way admittance voltage stabilizing, and the utility model can insert in rotary buffering valve and uses, ensure the sealability of rotary system further.It is simple that the utility model also has structure, and production and processing is convenient, and stationarity is good, sealing advantages of higher.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is hydraulic schematic diagram when the utility model is used in rotary system.
In figure, the 1, first valve body; 11, the first holding cavity; 111, control chamber; 112, oil suction chamber; 113, pressure spring; 12, the first filler opening; 13, the second filler opening; 14, the 3rd filler opening; 15, drain tap; 2, the second valve body; 21, the second holding cavity; 22, damping hole; 3, slip guiding sleeve; 4, the first spool; 41, sealed department; 42, interconnecting part; 43, the first circular groove; 44, the second circular groove; 45, gap slot; 46, through hole; 5, shuttle valve; 6, the second spool.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
Shown in Fig. 1 composition graphs 2, a kind of selection type bidirectional relief valve, comprises the first valve body 1 and the second valve body 2, and specifically, the second described valve body 2 is threaded with the first valve body 1.The first holding cavity 11 is provided with in the first described valve body 1, slip guiding sleeve 3 is provided with in the first described holding cavity 11, the first spool 4 coordinated with slip guiding sleeve 3 slippage is provided with in described slip guiding sleeve 3, the first described valve body 1 is provided with the first filler opening 12, second filler opening 13, the 3rd filler opening 14 and drain tap 15, specifically, the first described filler opening 12 is main oil inlet P, the second filler opening 13 is filler opening A, the 3rd filler opening 14 is filler opening B, and drain tap 15 is that drain tap L(is referring to accompanying drawing 2).The oil suction chamber 112 that first holding cavity 11 is divided into control chamber 111 and is connected with the first filler opening 12 by the first described spool 4, the first described spool 4 is provided with shuttle valve 5, the filler opening of shuttle valve 5 is connected with the second filler opening 13, the 3rd filler opening 14, the oil outlet of shuttle valve 5 is connected with control chamber 111, specifically, shuttle valve 5, for choosing the high pressure oil at the second filler opening 13 or the 3rd filler opening 14 place, is communicated to control chamber.In particular, the first described spool 4 is provided with the through hole 46 that shuttle valve 5 is connected with control chamber 111.The first described spool 4 separates the second filler opening 13 and the 3rd filler opening 14 primary importance when having work and the pressure oil by control chamber 111 promote the second place that the second filler opening 13 is connected with the 3rd filler opening 14, the second holding cavity 21 be connected with oil pressure mouth 15 is provided with in the second described valve body 2, be provided with the second spool 6 in the second described holding cavity 21, the second described spool 6 has the primary importance that oil suction chamber 112 is connected with the second holding cavity 21 and the second place separating oil suction chamber 112 and the second holding cavity 21.The beneficial effects of the utility model are, by the first valve body, the second valve body, the first spool and the second spool structure, make this product can pressure in realizing balanced rotation system hydraulic circuit, realize bidirectional flooding, the effect of two-way admittance voltage stabilizing, and the utility model can insert in rotary buffering valve and uses, ensure the sealability of rotary system further.It is simple that the utility model also has structure, and production and processing is convenient, and stationarity is good, sealing advantages of higher.
Be provided with pressure spring 113 in the first described holding cavity 11, described pressure spring 113 has the movement tendency making the first spool 4 to control chamber 111 slippage.Specifically, the first described spool 4 comprises sealed department 41 and interconnecting part 42, and the section area of described sealed department 41 is greater than the section area of interconnecting part 42.When such structure makes normally to work, the second filler opening and the 3rd filler opening reliably separate.Specifically, when operating, pressure oil enters from the first filler opening and opens the second spool, the effect playing voltage-stabilizing protection is flowed out from drain tap, second filler opening, the pressure of the 3rd filler opening is equal to the pressure of the first filler opening, now, area due to sealed department is greater than the area of interconnecting part and the effect of pressure spring, the active force in oil suction chamber is made to be greater than oil pressure in control chamber, first spool is in primary importance, second filler opening is not communicated with the 3rd filler opening, specifically, described shuttle valve chooses second, in 3rd filler opening higher pressure pressure oil input control chamber, one end in.Rotary system not oil-feed, namely during the first filler opening not oil-feed, first filler opening oil pressure declines, now second, third filler opening mesohigh oil imports to control chamber, promote the first spool compression pressure spring, the second filler opening is connected with the 3rd filler opening, exports to rotary motor, make motor action steady, play the effect of voltage stabilizing simultaneously.
The first described spool 4 is provided with the first circular groove 43 and the second circular groove 44 be connected with the second filler opening 13, the first described circular groove 43 is connected by gap slot 45 with the second circular groove 44, and the second described circular groove 44 is connected with the 3rd filler opening 14 when the first spool 4 is in the second place.It is steadily reliable that such structure ensures that the second filler opening is communicated with the 3rd filler opening.
The second described holding cavity 21 is connected with oil suction chamber 112 by the damping hole 22 be arranged on the second valve body 2 when being in primary importance.Damping hole be arranged so that product voltage stabilizing is reliable.
The second described spool 6 is tapered.It is reliable that such structure makes product seal.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (8)
1. a selection type bidirectional relief valve, comprise the first valve body (1) and the second valve body (2), it is characterized in that: in described the first valve body (1), be provided with the first holding cavity (11), slip guiding sleeve (3) is provided with in described the first holding cavity (11), the first spool (4) coordinated with slip guiding sleeve (3) slippage is provided with in described slip guiding sleeve (3), described the first valve body (1) is provided with the first filler opening (12), second filler opening (13), 3rd filler opening (14) and drain tap (15), the oil suction chamber (112) that first holding cavity (11) is divided into control chamber (111) and is connected with the first filler opening (12) by described the first spool (4), described the first spool (4) is provided with shuttle valve (5), the filler opening of shuttle valve (5) and the second filler opening (13), 3rd filler opening (14) is connected, the oil outlet of shuttle valve (5) is connected with control chamber (111), described the first spool (4) separates the second filler opening (13) and the 3rd filler opening (14) primary importance when having work and the pressure oil by control chamber (111) promote the second place that the second filler opening (13) is connected with the 3rd filler opening (14), the second holding cavity (21) be connected with drain tap (15) is provided with in described the second valve body (2), the second spool (6) is provided with in described the second holding cavity (21), described the second spool (6) has the primary importance that oil suction chamber (112) is connected with the second holding cavity (21) and the second place separating oil suction chamber (112) and the second holding cavity (21).
2. selection type bidirectional relief valve according to claim 1, it is characterized in that being provided with pressure spring (113) in described the first holding cavity (11), described pressure spring (113) has the movement tendency making the first spool (4) to control chamber (111) slippage.
3. selection type bidirectional relief valve according to claim 1 and 2, it is characterized in that described the first spool (4) comprises sealed department (41) and interconnecting part (42), the section area of described sealed department (41) is greater than the section area of interconnecting part (42).
4. selection type bidirectional relief valve according to claim 1, it is characterized in that described the first spool (4) is provided with the first circular groove (43) and the second circular groove (44) be connected with the second filler opening (13), described the first circular groove (43) is connected by gap slot (45) with the second circular groove (44), and described the second circular groove (44) is connected with the 3rd filler opening (14) when the first spool (4) is in the second place.
5. selection type bidirectional relief valve according to claim 1, is characterized in that described the first spool (4) is provided with the through hole (46) that shuttle valve (5) is connected with control chamber (111).
6. selection type bidirectional relief valve according to claim 1, is connected with oil suction chamber (112) by the damping hole (22) be arranged on the second valve body (2) when it is characterized in that described the second holding cavity (21) is in primary importance.
7. selection type bidirectional relief valve according to claim 1, is characterized in that described the second valve body (2) is threaded with the first valve body (1).
8. selection type bidirectional relief valve according to claim 1, is characterized in that described the second spool (6) is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246712.1U CN204553393U (en) | 2015-04-23 | 2015-04-23 | Selection type bidirectional relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246712.1U CN204553393U (en) | 2015-04-23 | 2015-04-23 | Selection type bidirectional relief valve |
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| Publication Number | Publication Date |
|---|---|
| CN204553393U true CN204553393U (en) | 2015-08-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520246712.1U Active CN204553393U (en) | 2015-04-23 | 2015-04-23 | Selection type bidirectional relief valve |
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| Country | Link |
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| CN (1) | CN204553393U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499686A (en) * | 2015-09-04 | 2017-03-15 | 熵零股份有限公司 | Bidirectional pressure-release valve |
| CN107620810A (en) * | 2017-10-30 | 2018-01-23 | 圣邦集团有限公司 | A kind of mechanical No leakage banked direction control valves |
| CN108061071A (en) * | 2018-01-23 | 2018-05-22 | 邵立坤 | A kind of plug-in bidirectional buffering overflow valve |
| CN108266431A (en) * | 2018-01-23 | 2018-07-10 | 邵立坤 | A kind of secondary pressure bidirectional relief valve |
-
2015
- 2015-04-23 CN CN201520246712.1U patent/CN204553393U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499686A (en) * | 2015-09-04 | 2017-03-15 | 熵零股份有限公司 | Bidirectional pressure-release valve |
| CN107620810A (en) * | 2017-10-30 | 2018-01-23 | 圣邦集团有限公司 | A kind of mechanical No leakage banked direction control valves |
| CN107620810B (en) * | 2017-10-30 | 2024-04-23 | 圣邦集团有限公司 | Mechanical leakage-free multi-way valve |
| CN108061071A (en) * | 2018-01-23 | 2018-05-22 | 邵立坤 | A kind of plug-in bidirectional buffering overflow valve |
| CN108266431A (en) * | 2018-01-23 | 2018-07-10 | 邵立坤 | A kind of secondary pressure bidirectional relief valve |
| CN108061071B (en) * | 2018-01-23 | 2020-04-10 | 立信阀门集团有限公司 | Plug-in type bidirectional buffer overflow valve |
| CN108266431B (en) * | 2018-01-23 | 2020-06-26 | 江苏金晟元特种阀门股份有限公司 | Two-stage pressure bidirectional overflow valve |
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