CN220337613U - Hydraulic valve body capable of reducing back pressure - Google Patents
Hydraulic valve body capable of reducing back pressure Download PDFInfo
- Publication number
- CN220337613U CN220337613U CN202322045676.XU CN202322045676U CN220337613U CN 220337613 U CN220337613 U CN 220337613U CN 202322045676 U CN202322045676 U CN 202322045676U CN 220337613 U CN220337613 U CN 220337613U
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- flow passage
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- 238000007789 sealing Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic valve body for reducing back pressure, which belongs to the technical field of hydraulic valves and comprises a hydraulic valve body and a pressure reducing group, wherein the pressure reducing group is fixed on the inner side of the hydraulic valve body and comprises a core body, a pressure reducing movable device and a core seat, a hydraulic flow passage is formed in the core body, guide grooves are formed in the upper side and the lower side of the hydraulic flow passage in the core body, the guide grooves comprise hemispherical groove bodies communicated with the hydraulic flow passage, and spring grooves are formed in one side, far away from the hydraulic flow passage, of the groove bodies; the hydraulic flow passage comprises an expanding groove section and a reducing groove section which are communicated with each other; the groove body is arranged between the expanding groove section and the small-diameter groove section; the hydraulic valve body for reducing the back pressure is arranged on the oil return flow passage of the hydraulic valve body, and the back pressure of the hydraulic valve loop can be smoothly consumed by dynamically consuming the back pressure through the double-pressure ball matched with the spring, and meanwhile, the back pressure on the hydraulic valve loop flow passage is smoothed, and the output end of the hydraulic valve is smoother.
Description
Technical Field
The utility model particularly relates to a hydraulic valve body for reducing back pressure, and belongs to the technical field of hydraulic valves.
Background
The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of the pressure distribution valve, is usually used in combination with an electromagnetic pressure distribution valve, and in the prior art, an oil return pipeline interface of the hydraulic valve is easily affected by the impact of the back force of oil return, so that the hydraulic valve is loosened, and accidents such as liquid leakage and the like are caused; for this purpose, chinese patent publication No.: CN213744219U discloses a hydraulic valve body of back pressure reduction, through set up the spiral pipe on the hydraulic valve runner, can reduce the velocity of flow of liquid when liquid flows through, when liquid flow through the output hole, the velocity of flow of liquid has been by greatly reduced, and then reduced the back force that the hydraulic valve bore for be connected between hydraulic valve and the external connection body more inseparabler, but this structure leads to the hydraulic valve to increase at spiral pipe department pressure suddenly easily, influences oil return efficiency, and hydraulic valve pressure loss is big.
Disclosure of Invention
In order to solve the problems, the utility model provides a hydraulic valve body capable of reducing back pressure, which can smoothly consume the back pressure and has smoother back pressure output.
The utility model discloses a hydraulic valve body for reducing back pressure, which comprises a hydraulic valve body and a pressure reducing group, wherein the pressure reducing group is fixed on the inner side of the hydraulic valve body and comprises the following components:
the hydraulic flow channel is formed in the core body, guide grooves are formed in the upper side and the lower side of the hydraulic flow channel in the core body, the guide grooves comprise hemispherical groove bodies which are communicated with the hydraulic flow channel, and spring grooves are formed in one sides, away from the hydraulic flow channel, of the groove bodies; the hydraulic flow passage comprises an expanding groove section and a reducing groove section which are communicated with each other; the groove body is arranged between the expanding groove section and the small-diameter groove section;
the pressure reducing movable device comprises a pressure ball arranged on the inner side of the groove body, and a spring body is arranged in the spring groove; the pressing ball is connected with a guide rod in a rotating way; the guide rod movably penetrates through the spring body;
the core seat is characterized in that one end of the core seat is provided with a convex inner cavity, the core body is embedded into the small-diameter end of the inner cavity, the large-diameter end of the inner cavity is embedded with a plate body, the plate body is opposite to the hydraulic flow passage and provided with a guide-in groove, and the core seat is opposite to the hydraulic flow passage and provided with a guide-out groove;
the core seat is fixed on the inner side of the output interface of the hydraulic valve body.
The flow channel in the hydraulic valve body passes through fluid, the fluid enters the hydraulic flow channel of the core seat, the fluid contacts the pressing ball, the pressing ball is propped up by the fluid, the spring body is compressed, the flow channel is widened while the pressing ball is propped up, part of back pressure is consumed, and meanwhile, the flow channel is secondarily widened through the expanding groove section after the fluid passes through the pressing ball, so that the pressure of the fluid is relieved; the back pressure of the fluid is reduced again, and the fluid of the output interface of the hydraulic valve body is more stable.
Further, the core seat is fixed on the inner side of the output interface of the hydraulic valve body through a screwed connection or a flange, and when the hydraulic valve is installed, the core seat is installed on the output interface of the hydraulic valve body through the flange or threads.
Further, the leading-in groove is in butt joint with the output flow passage of the hydraulic valve body, and the output flow passage of the hydraulic valve body leads fluid into the inner side of the hydraulic flow passage through the leading-in groove.
Further, the side part of the core body is provided with a ball sliding-in groove communicated with the groove body, a sealing bolt is screwed at the position of the ball sliding-in groove, and during installation, the pressing ball slides into the groove body from the ball sliding-in groove and is screwed and sealed through the sealing bolt, and the bottom of the pressing ball is attached to the bottom of the inner side of the groove body, so that a basic circulation state is kept between the two pressing balls.
Further, an inner ring groove is formed in the inner side of the core seat opposite to the guide rod, the guide rod is driven to slide out of the core body through the upper top of the pressing ball, and the guide rod can enter the inner ring groove.
Compared with the prior art, the hydraulic valve body for reducing the back pressure is arranged on the oil return flow passage of the hydraulic valve body, the back pressure of the hydraulic valve loop can be smoothly consumed by dynamically consuming the back pressure through the double-pressure ball matched spring, the back pressure on the hydraulic valve loop flow passage is smoothed, and the output end of the hydraulic valve is smoother.
Drawings
Fig. 1 is a schematic diagram of a core structure of the present utility model.
Fig. 2 is a schematic view of the core, depressurization mover and core print mounting structure of the present utility model.
Fig. 3 is a schematic overall structure of the present utility model.
Reference numerals: the hydraulic valve comprises a hydraulic valve body 1, a core body 2, a hydraulic flow passage 3, a guide groove 4, a groove body 5, a spring groove 6, an expanded diameter groove section 7, a small diameter groove section 8, a pressing ball 9, a spring body 10, a guide rod 11, an inner cavity 12, a plate body 13, an introducing groove 14, an introducing groove 15, a ball sliding groove 16, a sealing bolt 17 and an inner ring groove 18.
Detailed Description
Examples:
the hydraulic valve body of the back pressure reducing hydraulic valve shown in fig. 1 to 3 comprises a hydraulic valve body 1 and further comprises a pressure reducing group fixed inside the hydraulic valve body 1, wherein the pressure reducing group comprises:
the hydraulic flow channel 3 is formed in the core body 2, the guide groove 4 is formed in the upper side and the lower side of the hydraulic flow channel 3 in the core body 2, the guide groove 4 comprises a hemispherical groove body 5 communicated with the hydraulic flow channel 3, and a spring groove 6 is formed in one side, far away from the hydraulic flow channel 3, of the groove body 5; the hydraulic flow passage 3 comprises an expanding groove section 7 and a reducing groove section 8 which are communicated with each other; the groove body 5 is arranged between the expanding groove section 7 and the small-diameter groove section 8;
the pressure reducing movable device comprises a pressure ball 9 arranged on the inner side of the groove body 5, and a spring body 10 is arranged in the spring groove 6; the pressing ball 9 is screwed with a guide rod 11; the guide rod 11 movably penetrates through the spring body 10;
the core seat, one end of the core seat is provided with a convex inner cavity 12, the core 2 is embedded into the small-diameter end of the inner cavity 12, the large-diameter end of the inner cavity 12 is embedded with a plate 13, the plate 13 is provided with a leading-in groove 14 opposite to the hydraulic flow channel 3, and the core seat is provided with a leading-out groove 15 opposite to the hydraulic flow channel 3;
the core seat is fixed on the inner side of the output interface of the hydraulic valve body 1.
The flow passage in the hydraulic valve body is through the fluid, the fluid enters the hydraulic flow passage 3 of the core seat, the fluid contacts the pressing ball 9, the pressing ball 9 is propped up by the fluid, the spring body 10 is compressed, the flow passage is widened, partial back pressure is consumed while the pressing ball is propped up, and meanwhile, the flow passage is secondarily widened through the expanding groove section 7 after the fluid passes through the pressing ball, so that the fluid is decompressed; the back pressure of the fluid is reduced again, and the fluid of the output interface of the hydraulic valve body is more stable.
The core seat is fixed on the inner side of the output interface of the hydraulic valve body 1 through a screwed connection or a flange, and is installed on the output interface of the hydraulic valve body 1 through the flange or threads during installation.
The introduction groove 14 is in butt joint with the output flow passage of the hydraulic valve body 1, and the output flow passage of the hydraulic valve body 1 introduces fluid into the inner side of the hydraulic flow passage 3 through the introduction groove 14.
The side part of the core body 2 is provided with a ball sliding-in groove 16 communicated with the groove body, a sealing bolt 17 is screwed at the ball sliding-in groove 16, and during installation, the pressing balls 9 slide into the groove body 5 from the ball sliding-in groove 16, and the ball sliding-in groove is screwed and sealed through the sealing bolt 17, and the bottoms of the pressing balls 9 are attached to the bottom of the inner side of the groove body 5, so that a basic circulation state is kept between the two pressing balls 9.
An inner ring groove 18 is formed on the inner side of the core seat opposite to the guide rod 11, the guide rod 11 is driven to slide out of the core body 2 through the upper top of the pressing ball 9, and the guide rod 11 can enter the inner ring groove 18.
The above embodiments are merely preferred embodiments of the present utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides a reduce hydraulic valve body of backpressure, includes hydraulic valve body, its characterized in that: still include the step-down group, the step-down group is fixed in the hydraulic valve body inboard, the step-down group includes:
the hydraulic flow channel is formed in the core body, guide grooves are formed in the upper side and the lower side of the hydraulic flow channel in the core body, the guide grooves comprise hemispherical groove bodies which are communicated with the hydraulic flow channel, and spring grooves are formed in one sides, away from the hydraulic flow channel, of the groove bodies; the hydraulic flow passage comprises an expanding groove section and a reducing groove section which are communicated with each other; the groove body is arranged between the expanding groove section and the small-diameter groove section;
the pressure reducing movable device comprises a pressure ball arranged on the inner side of the groove body, and a spring body is arranged in the spring groove; the pressing ball is connected with a guide rod in a rotating way; the guide rod movably penetrates through the spring body;
the core seat is characterized in that one end of the core seat is provided with a convex inner cavity, the core body is embedded into the small-diameter end of the inner cavity, the large-diameter end of the inner cavity is embedded with a plate body, the plate body is opposite to the hydraulic flow passage and provided with a guide-in groove, and the core seat is opposite to the hydraulic flow passage and provided with a guide-out groove;
the core seat is fixed on the inner side of the output interface of the hydraulic valve body.
2. The back pressure reducing hydraulic valve body of claim 1, wherein: the core seat is fixed on the inner side of the output interface of the hydraulic valve body through a screwed connection or flange.
3. The back pressure reducing hydraulic valve body of claim 1, wherein: the leading-in groove is in butt joint with the output flow passage of the hydraulic valve body.
4. The back pressure reducing hydraulic valve body of claim 1, wherein: the side part of the core body is provided with a sphere sliding-in groove communicated with the groove body, and a sealing bolt is screwed at the position of the sphere sliding-in groove.
5. The back pressure reducing hydraulic valve body of claim 1, wherein: an inner ring groove is formed on the inner side of the core seat opposite to the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045676.XU CN220337613U (en) | 2023-08-01 | 2023-08-01 | Hydraulic valve body capable of reducing back pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045676.XU CN220337613U (en) | 2023-08-01 | 2023-08-01 | Hydraulic valve body capable of reducing back pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337613U true CN220337613U (en) | 2024-01-12 |
Family
ID=89448733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322045676.XU Active CN220337613U (en) | 2023-08-01 | 2023-08-01 | Hydraulic valve body capable of reducing back pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337613U (en) |
-
2023
- 2023-08-01 CN CN202322045676.XU patent/CN220337613U/en active Active
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