CN212536297U - Valve core structure of reversing valve - Google Patents
Valve core structure of reversing valve Download PDFInfo
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- CN212536297U CN212536297U CN202021625498.8U CN202021625498U CN212536297U CN 212536297 U CN212536297 U CN 212536297U CN 202021625498 U CN202021625498 U CN 202021625498U CN 212536297 U CN212536297 U CN 212536297U
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- cylinder
- oil hole
- oil
- oilhole
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a reversing valve core structure, including cylinder one, the left and right sides of cylinder one is equipped with cylinder two and cylinder three respectively, cylinder four, cylinder five are equipped with respectively between cylinder two, cylinder three and the cylinder one, the terminal surface of cylinder two, cylinder three is the outside protrusion one section cylinder six, cylinder seven respectively, the left and right sides of cylinder one is provided with the first oilhole and the second oilhole that radially run through respectively, cylinder two, cylinder three are provided with the third oilhole that radially runs through respectively, the axial of cylinder six is provided with oilhole five, the axial of cylinder seven is provided with oilhole six, the first oilhole, oilhole two, oilhole three, oilhole four and cylinder one, cylinder two, cylinder three cylindrical surface junction position department sets up four annular oil grooves; the utility model discloses can avoid the hydraulic oil seepage to the working fluid port of high-pressure fluid port side for the executive component who is connected with the working fluid port can not influence the current state because of the hydraulic oil of inside seepage.
Description
[ technical field ]
The utility model belongs to the technical field of the hydraulic component technique and specifically relates to a switching-over valve case structure.
[ background art ]
The reversing valve is used as a hydraulic element for controlling the on-off and reversing of an oil path, is very commonly applied, and is of a slide valve type structure, a valve core of the common reversing valve slides in a valve body, and different oil ports are communicated or closed by switching the reversing of the valve core. However, since the valve core and the valve body are in sliding fit, hydraulic oil on the high-pressure oil port side leaks to the low-pressure oil port side through a gap on the sliding surface, and if the low-pressure oil port side is connected with an actuator, the existing position of the actuator is changed as leaked hydraulic oil is accumulated continuously. This is therefore not applicable where strict position requirements are imposed on the actuator.
[ contents of utility model ]
The utility model aims at solving foretell not enough and provide a switching-over valve case structure, can avoid the hydraulic oil seepage to the working fluid port of high-pressure fluid port side for the execute component who is connected with the working fluid port can not influence the current state because of the hydraulic oil of inside seepage.
The valve core structure of the reversing valve is designed to achieve the purpose, and comprises a cylinder I1 arranged in the middle, wherein the left side and the right side of the cylinder I1 are respectively connected with a cylinder II 2 and a cylinder III 3, a cylinder IV 4 is arranged between the cylinder II 2 and the cylinder I1, a cylinder V5 is arranged between the cylinder III 3 and the cylinder I1, the diameters of the cylinder IV 4 and the cylinder V5 are both smaller than the diameter of the cylinder I1, a section of cylinder VI 6 protrudes outwards from an end surface I21 of the cylinder II 2, a section of cylinder VII 7 protrudes outwards from an end surface II 31 of the cylinder III 3, the diameters of the cylinder VI 6 and the cylinder VII 7 are both smaller than the diameter of the cylinder I1, the left side and the right side of the cylinder I1 are respectively provided with a radially penetrating oil hole I11 and a radially penetrating oil hole II 12, and the cylinder II 2 is provided with a, the cylinder III 3 is provided with a radially penetrating oil hole IV 32, the cylinder VI 6 is axially provided with an oil hole V61, the oil hole V61 penetrates through the oil hole I11 and the oil hole III 22, the cylinder VII 7 is axially provided with an oil hole VI 71, the oil hole VI 71 penetrates through the oil hole II 12 and the oil hole IV 32, the joint positions of the cylinder surfaces of the oil hole I11, the oil hole II 12 and the cylinder I1 are respectively provided with an annular oil groove I13 and an annular oil groove II 14, the joint position of the cylinder surface of the oil hole III 22 and the cylinder II 2 is provided with an annular oil groove III 23, and the joint position of the cylinder surfaces of the oil hole IV 32 and the cylinder III 3 is provided with an annular oil groove IV 33.
Further, the diameters of the second cylinder 2 and the third cylinder 3 are the same as the diameter of the first cylinder 1, and the lengths of the second cylinder 2 and the third cylinder 3 are smaller than the length of the first cylinder 1.
Further, the outer circumference of the cylinder six 6 is provided with a spring supporting step I8, and the outer circumference of the cylinder seven 7 is provided with a spring supporting step II 9.
Furthermore, the outer ports of the oil hole five 61 and the oil hole six 71 are respectively provided with a choke plug first 62 and a choke plug second 72.
Further, the cylinder I1, the cylinder II 2, the cylinder III 3, the cylinder IV 4, the cylinder V5, the cylinder VI 6, the cylinder VII 7, the spring support step I8 and the spring support step II 9 are of a coaxial integrated structure.
Compared with the prior art, the utility model, novel structure, simple, reasonable in design through carrying out the improved design back to the structure, can realize flowing back the oilhole that sets up on the case with the oil leakage oil of high pressure oil port side to the T mouth of valve body, and not directly flow to the working oil port, the executive component who is connected with the working oil port like this then can not influence its current state because of the hydraulic oil of inside seepage to be applicable to very much and have the occasion of requirement to executive component's position, be worth popularizing and applying.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is an enlarged view of the structure at I in FIG. 2;
fig. 4 is a schematic view of an application structure of the present invention;
FIG. 5 is an enlarged view of the structure at II in FIG. 4;
fig. 6 is a schematic diagram of an application structure of the present invention;
in the figure: 1. the oil cylinder comprises a cylinder I11, an oil hole I12, an oil hole II 13, an annular oil groove I14, an annular oil groove II 2, a cylinder II 21, an end face I22, an oil hole III 23, an annular oil groove III 3, a cylinder III 31, an end face II 32, an oil hole IV 33, an annular oil groove IV 4, a cylinder IV 5, a cylinder V6, a cylinder VI 61, an oil hole V62, a choke plug I7, a cylinder VII 71, an oil hole VI 72, a choke plug II 8, a spring supporting step I9, a spring supporting step II 100, a valve core 101, a valve body 102, a sealing cover 103, a spring I104, a spring II 105 and a spring receiver.
[ detailed description of the invention ]
The invention is further described below with reference to the accompanying drawings:
as shown in the attached figure 1, the utility model provides a valve core structure of a reversing valve, which comprises a cylinder 1 arranged at the middle part, wherein the left side and the right side of the cylinder 1 are respectively connected with a cylinder two 2 and a cylinder three 3, the diameters of the cylinder two 2 and the cylinder three 3 are the same as the diameter of the cylinder one 1, the lengths of the cylinder two 2 and the cylinder three 3 are both smaller than the length of the cylinder one 1, a cylinder four 4 is arranged between the cylinder two 2 and the cylinder one 1, a cylinder five 5 is arranged between the cylinder three 3 and the cylinder one 1, the diameters of the cylinder four 4 and the cylinder five 5 are both smaller than the diameter of the cylinder one 1, the end surface one 21 of the cylinder two 2 protrudes outwards by a cylinder six 6, the end surface two 31 of the cylinder three 3 protrudes outwards by a cylinder seven 7, the diameters of the cylinder six 6 and the cylinder seven 7 are both smaller than, the left side and the right side of the cylinder I1 are respectively provided with a first oil hole 11 and a second oil hole 12 which penetrate through the cylinder I in the radial direction, the cylinder II 2 is provided with a third oil hole 22 which penetrates through the cylinder II in the radial direction, the cylinder III 3 is provided with a fourth oil hole 32 which penetrates through the cylinder III in the radial direction, the cylinder VI 6 is axially provided with a fifth oil hole 61, the fifth oil hole 61 penetrates through the first oil hole 11 and the third oil hole 22, the cylinder seventh oil hole seven 7 is axially provided with a sixth oil hole 71, the sixth oil hole 71 penetrates through the second oil hole 12 and the fourth oil hole 32, the joint positions of the cylinder surfaces of the first oil hole 11, the second oil hole 12 and the cylinder I1 are respectively provided with a first annular oil groove 13 and a second annular oil groove 14, the joint position of the cylinder surfaces of the third.
The outer circumference of the cylinder six 6 is provided with a spring supporting step I8, and the outer circumference of the cylinder seven 7 is provided with a spring supporting step II 9; the outer ports of the oil hole five 61 and the oil hole six 71 are respectively provided with a choke plug first 62 and a choke plug second 72; the cylinder I1, the cylinder II 2, the cylinder III 3, the cylinder IV 4, the cylinder V5, the cylinder VI 6, the cylinder VII 7, the spring supporting step I8 and the spring supporting step II 9 are coaxial and integrated and are designed into an integrated structure.
Case structure specifically do: a cylinder I1 with the diameter of D and the length of L is arranged in the middle of the cylindrical body I, a cylinder II 2 and a cylinder III 3 with the diameter of D and the length of less than L are respectively arranged on the left side and the right side of the cylindrical body I, and a cylinder IV 4 and a cylinder V5 with the diameter of less than D are arranged among the cylinder I1, the cylinder II 2 and the cylinder III 3 and are connected; a section of cylinder six 6 with the diameter smaller than D protrudes from the end surface one 21 of the cylinder two 2; a section of cylinder seven 7 with the diameter smaller than D protrudes from the end surface II 31 of the cylinder III 3; a first spring supporting step 8 is arranged on the cylinder six 6, and a second spring supporting step 9 is arranged on the cylinder seven 7. The left side and the right side of the cylinder I1 are respectively provided with a first oil hole 11 and a second oil hole 12 which penetrate through the cylinder I in the radial direction, the cylinder II 2 is provided with a third oil hole 22 which penetrates through the cylinder II in the radial direction, and the cylinder III 3 is provided with a fourth oil hole 32 which penetrates through the cylinder II in the radial direction; an oil hole five 61 is axially formed in the cylinder six 6 and penetrates through the oil hole one 11 and the oil hole three 22; an oil hole six 71 is axially formed in the cylindrical body seven 7 and penetrates through the oil hole two 12 and the oil hole four 32; the oil hole five 61 and the oil hole six 71 are respectively blocked by a choke plug first 62 and a choke plug second 72; and four annular oil grooves are arranged at the joint positions of the first oil hole 11, the second oil hole 12, the third oil hole 22 and the fourth oil hole 32 and the cylindrical surfaces of the first cylinder 1, the second cylinder 2 and the third cylinder 3.
As shown in fig. 4 and fig. 5, the structure of the valve core structure of the present invention is schematically illustrated. The valve core is arranged in the axial cavity hole of the valve body and can slide left and right; the port P of the valve body is connected with a hydraulic source, the port A/B of the valve body is connected with a differential cylinder, and the port T of the valve body is communicated with an oil tank; when the two ends of the valve core do not have external force effects such as electromagnetic force, hydraulic force and the like, the valve core is in a neutral position under the action of the first spring and the second spring, and the oil port P/A/B/T is not communicated at the moment; when a high-pressure oil source is connected to the port P, a small axial gap exists between the sliding surface of the valve core and the sliding surface of the valve body due to the sliding fit between the valve core and the valve body, and a small amount of hydraulic oil can leak out through the gap; because the valve core structure of the utility model is specially designed, a small amount of hydraulic oil can leak into the annular oil groove I13 and the annular oil groove II 14 of the valve core through the axial clearance, and the hydraulic oil in the annular oil groove I13 flows out through the radial oil hole I11, the axial oil hole five 61 and the radial oil hole III 22 and flows into the oil tank through the T port; similarly, the hydraulic oil in the annular oil groove II 14 flows out through the radial oil hole II 12, the axial oil hole six 71 and the radial oil hole four 32 and flows into the oil tank through the T port; therefore, the high-pressure hydraulic oil of the P port flows back to the oil tank through the oil hole formed in the valve core due to the axial clearance, and cannot leak to the A/B oil port of the valve body, so that the position of the differential cylinder connected with the A/B oil port cannot be changed, and the differential cylinder is very suitable for occasions with strict requirements on the stop position of the oil cylinder.
As shown in fig. 6, when the left side of the valve core is subjected to a hydraulic pressure or electromagnetic force, the valve core moves to the right side; the oil path is P → A, B → T at this time, drive the differential cylinder to actuate; meanwhile, hydraulic oil can be communicated with the radial oil hole I11, the axial oil hole five 61 and the radial oil hole three 22 through the valve core; because the radial oil hole three 22 is positioned between the annular sliding surfaces of the valve body and the choke plug one 62 is arranged on the left side of the axial oil hole five 61, hydraulic oil of the port P cannot directly flow back to the oil tank through the radial oil hole one 11 of the valve core, and the axial oil hole five 61 and the radial oil hole three 22 cannot influence the flow and the pressure required by driving the differential cylinder.
When the right side of the valve core is subjected to hydraulic pressure or electromagnetic force, the valve core moves towards the left side, and the working mode is the same as the above.
The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.
Claims (5)
1. A valve core structure of a reversing valve is characterized in that: the oil-gas separation device comprises a cylinder I (1) arranged in the middle, the left side and the right side of the cylinder I (1) are respectively connected with a cylinder II (2) and a cylinder III (3), a cylinder IV (4) is arranged between the cylinder II (2) and the cylinder I (1), a cylinder V (5) is arranged between the cylinder III (3) and the cylinder I (1), the diameters of the cylinder IV (4) and the cylinder V (5) are both smaller than that of the cylinder I (1), an end face I (21) of the cylinder II (2) protrudes outwards to form a section of cylinder VI (6), an end face II (31) of the cylinder III (3) protrudes outwards to form a section of cylinder VII (7), the diameters of the cylinder VI (6) and the cylinder VII (7) are both smaller than that of the cylinder I (1), and the left side and the right side of the cylinder I (1) are respectively provided with a radially penetrating oil hole I (11) and an oil, a third oil hole (22) which penetrates through the cylinder II in the radial direction is formed in the cylinder II (2), a fourth oil hole (32) which penetrates through the cylinder III in the radial direction is formed in the cylinder III (3), an oil hole five (61) is axially arranged on the cylinder six (6), the oil hole five (61) is penetrated through the oil hole one (11) and the oil hole three (22), an oil hole six (71) is axially arranged on the cylinder seven (7), the oil hole six (71) is penetrated through the oil hole two (12) and the oil hole four (32), the joint positions of the first oil hole (11), the second oil hole (12) and the cylindrical surface of the first cylinder (1) are respectively provided with a first annular oil groove (13) and a second annular oil groove (14), a third annular oil groove (23) is arranged at the joint of the third oil hole (22) and the cylindrical surface of the second cylinder (2), and an annular oil groove IV (33) is arranged at the joint position of the oil hole IV (32) and the cylindrical surface of the cylinder III (3).
2. The reversing valve cartridge structure of claim 1, wherein: the diameters of the second cylinder (2) and the third cylinder (3) are the same as the diameter of the first cylinder (1), and the lengths of the second cylinder (2) and the third cylinder (3) are smaller than the length of the first cylinder (1).
3. The reversing valve cartridge structure of claim 2, wherein: the outer circumference of the cylinder six (6) is provided with a spring supporting step I (8), and the outer circumference of the cylinder seven (7) is provided with a spring supporting step II (9).
4. The reversing valve cartridge structure of claim 3, wherein: outer ports of the oil hole five (61) and the oil hole six (71) are respectively provided with a choke plug first (62) and a choke plug second (72).
5. The reversing valve cartridge structure of claim 4, wherein: the cylinder I (1), the cylinder II (2), the cylinder III (3), the cylinder IV (4), the cylinder V (5), the cylinder VI (6), the cylinder VII (7), the spring supporting step I (8) and the spring supporting step II (9) are of a coaxial integrated structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020212339455 | 2020-06-30 | ||
| CN202021233945 | 2020-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212536297U true CN212536297U (en) | 2021-02-12 |
Family
ID=73246047
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021625498.8U Active CN212536297U (en) | 2020-06-30 | 2020-08-07 | Valve core structure of reversing valve |
| CN202010786966.8A Pending CN111894929A (en) | 2020-06-30 | 2020-08-07 | Valve core structure of reversing valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010786966.8A Pending CN111894929A (en) | 2020-06-30 | 2020-08-07 | Valve core structure of reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN212536297U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555218B (en) * | 2020-12-18 | 2024-05-17 | 涌镇液压机械（上海）有限公司 | Valve body structure of reversing valve |
| CN113431924A (en) * | 2021-01-08 | 2021-09-24 | 涌镇液压机械（上海）有限公司 | Reversing valve capable of preventing displacement of actuating element |
| CN112746999B (en) * | 2021-01-08 | 2024-05-28 | 涌镇液压机械（上海）有限公司 | Leakage type reversing valve |
| CN112797189A (en) * | 2021-01-29 | 2021-05-14 | 涌镇液压机械（上海）有限公司 | Reversing valve with sewage discharge capacity |
| CN113958726B (en) * | 2021-10-19 | 2024-03-08 | 涌镇液压机械（上海）有限公司 | Valve core structure of internal flow reversing valve |
-
2020
- 2020-08-07 CN CN202021625498.8U patent/CN212536297U/en active Active
- 2020-08-07 CN CN202010786966.8A patent/CN111894929A/en active Pending
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| Publication number | Publication date |
|---|---|
| CN111894929A (en) | 2020-11-06 |
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