CN211976506U - Valve structure for preventing check ring from falling off - Google Patents
Valve structure for preventing check ring from falling off Download PDFInfo
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- CN211976506U CN211976506U CN202020361960.1U CN202020361960U CN211976506U CN 211976506 U CN211976506 U CN 211976506U CN 202020361960 U CN202020361960 U CN 202020361960U CN 211976506 U CN211976506 U CN 211976506U
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- ring
- valve
- liquid inlet
- hole
- retainer ring
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Abstract
The utility model discloses a valve structure for preventing a check ring from falling off, which comprises a valve seat, a valve, a check ring and a spring, wherein the valve seat comprises a vertically arranged liquid inlet plate and an enclosure cylinder connected to the left side surface of the liquid inlet plate; the inner surface of the left end part of the enclosing cylinder is connected with a check ring, the spring is arranged between the right surface of the check ring and the left surface of the liquid baffle plate, and the valve is inserted into an inner hole of the check ring leftwards and is in sliding sealing fit with the hole wall of the inner hole of the check ring; the middle part of the retainer ring is protruded along the radial direction to form a clamping part, the inner wall of the enclosure barrel at the clamping part is provided with a clamping groove, and the radial outer edge of the clamping part is clamped in the clamping groove; the left end part of the enclosure cylinder is bent downwards to form a positioning ring used for preventing the retainer ring from being separated from the enclosure cylinder leftwards, and the radial inner edge of the positioning ring is matched with the outer edge of the retainer ring on the left side of the clamping part. The utility model discloses can not fall the bits because of the extrusion when installing the retaining ring in the valve seat, can stop the retaining ring and deviate from, the phenomenon that the valve became invalid, job stabilization is reliable, the manufacturing of being convenient for.
Description
Technical Field
The utility model relates to a liquid one-way conduction technical field.
Background
Check valves are widely used in a variety of fluid delivery applications. In various use occasions such as automobiles, mechanical equipment and the like, a lubricating oil way is required to be arranged to ensure the normal work of mechanical moving parts. In order to prevent the backflow of the lubricating oil, a check valve is required to be arranged on the lubricating oil path.
Different check valves (valve structures) are required to be arranged on pipelines of different motor vehicles and different models. The existing one-way valve structure comprises a valve seat, a valve, a check ring and a spring, wherein the valve seat comprises a vertically arranged liquid inlet plate and an enclosure cylinder connected to the left side surface of the liquid inlet plate; a liquid inlet hole is formed in the liquid inlet plate on the radially inner side of the enclosure cylinder, and the diameter of the liquid inlet hole is smaller than that of the enclosure cylinder; the side wall of the enclosure cylinder is provided with a liquid outlet hole; the right end part of the valve extends radially to form a liquid baffle plate, the circumferential surface of the liquid baffle plate is in sliding fit with the inner wall of the enclosure cylinder, and the right side of the valve is tightly sealed with the left side of the liquid inlet plate, so that the liquid of the lubricating oil cannot flow from left to right.
The defects of the prior art are as follows: be interference fit between retaining ring and the valve seat, when installing the retaining ring in the valve seat, need great extrusion force, fall the aluminium bits (the valve seat is aluminium matter) with the valve seat extrusion easily, the retaining ring drops seriously can appear, during retaining ring, valve and the spring inflow system that the medium stream will drop after crossing, lead to the check valve to become invalid, reverse unable damming. Damage to the system is caused by the parts flowing into the system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a valve structure that prevents retaining ring and drop can not drop the bits because of the extrusion when installing the retaining ring in the valve seat, stops the retaining ring and deviate from, the phenomenon that the valve became invalid.
In order to achieve the purpose, the valve structure for preventing the retainer ring from falling comprises a valve seat, a valve, the retainer ring and a spring, wherein the valve seat comprises a vertically arranged liquid inlet plate and a retaining cylinder connected to the left side surface of the liquid inlet plate; a liquid inlet hole is formed in the liquid inlet plate on the radially inner side of the enclosure cylinder, and the diameter of the liquid inlet hole is smaller than that of the enclosure cylinder; the side wall of the enclosure cylinder is provided with a liquid outlet hole; the right end part of the valve extends radially to form a liquid baffle plate, the circumferential surface of the liquid baffle plate is in sliding fit with the inner wall of the enclosure cylinder,
the inner surface of the left end part of the enclosing cylinder is connected with a check ring, the inner hole of the check ring is smaller than the liquid inlet hole, the radial inner side of the right surface of the check ring is axially provided with an annular bulge, the spring is arranged between the right surface of the check ring on the radial outer side of the annular bulge and the left surface of the liquid baffle plate, and the spring pushes the liquid baffle plate against the liquid inlet plate and seals the liquid inlet hole; the valve is inserted into the inner hole of the retainer ring leftwards and is in sliding sealing fit with the hole wall of the inner hole of the retainer ring;
the middle part of the retainer ring is protruded along the radial direction to form a clamping part, the inner wall of the enclosure barrel at the clamping part is provided with a clamping groove, and the radial outer edge of the clamping part is clamped in the clamping groove; the left end part of the enclosure cylinder is bent downwards to form a positioning ring used for preventing the retainer ring from being separated from the enclosure cylinder leftwards, and the radial inner edge of the positioning ring is matched with the outer edge of the retainer ring on the left side of the clamping part.
The fit clearance between the circumferential surface of the valve and the hole wall of the inner hole of the retainer ring is 0.02-0.04 mm.
The outer surface of the left end part of the enclosing cylinder is provided with a taper part with a small left part and a big right part.
The liquid inlet hole is in a horn shape with a large right and a small left.
The utility model discloses have following advantage:
because the retaining ring and the valve seat are clamped and positioned by the positioning ring instead of the prior interference fit, the retaining ring is not required to be extruded into the valve seat under the action of pressure, and the phenomenon of pressing off aluminum scraps is avoided. The clamping fit and the positioning of the positioning ring ensure that the check ring cannot be separated from the valve seat, and the phenomena that the check ring, the valve and the spring which fall off after the medium flows through the check ring, the valve and the spring flow into a system, the valve structure fails and the valve cannot be cut off reversely are avoided.
Of course, when the check ring and/or the valve seat are made of aluminum materials, aluminum scraps are extruded in the prior art; when the retainer ring and/or the valve seat are made of steel, steel scraps are extruded in the prior art.
The fit clearance between the circumferential surface of the valve and the hole wall of the inner hole of the retainer ring is 0.02-0.04 mm, and the clearance range can ensure that the liquid of the lubricating oil can not pass through.
The setting of taper portion has reduced the processing in hole groove, and more importantly is convenient for form the holding ring through pneumatic cylinder extrusion binding off very much, and the operation of being convenient for close up can guarantee to close up and target in place, makes the radial inner edge of holding ring and the left retaining ring outer fringe looks adaptation of joint portion. After the closing-in, the retainer ring can be ensured to be prevented from being separated from the valve seat towards the left side, and the structure is very firm. The closing-up operation is very simple and convenient, and the closing-up operation can be conveniently completed by extruding the closing-up through a pneumatic cylinder or rotating and pressing the closing-up on a lathe.
The liquid inlet hole is in the shape of a horn with a big right and a small left, and is convenient to be assembled on the oil circuit
In a word, the utility model discloses can not fall the bits because of the extrusion when installing the retaining ring in the valve seat, can stop the phenomenon that the retaining ring deviates from, the valve became invalid, job stabilization is reliable, the manufacturing of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of a valve seat before closing in.
Detailed Description
As shown in fig. 1 and 2, the valve structure for preventing the retainer ring from falling comprises a valve seat, a valve, a retainer ring and a spring 1, wherein the valve seat comprises a vertically arranged liquid inlet plate 2 and a containment cylinder 3 connected to the left side surface of the liquid inlet plate 2; a liquid inlet hole 4 is formed in the liquid inlet plate 2 on the radial inner side of the enclosure cylinder 3, and the diameter of the liquid inlet hole 4 is smaller than that of the enclosure cylinder 3; the side wall of the enclosure cylinder 3 is provided with a liquid outlet 5; the right end part of the valve extends radially to form a liquid baffle plate 6, and the circumferential surface of the liquid baffle plate 6 is in sliding fit with the inner wall of the enclosure cylinder 3. The utility model provides a sealed indicate to the medium seal that passes through, mainly seal to lubricating oil.
A check ring 7 is connected to the inner surface of the left end part of the enclosing cylinder 3, the inner hole of the check ring 7 is smaller than the liquid inlet hole 4, an annular bulge 8 is axially arranged on the radial inner side of the right surface of the check ring 7, the spring 1 is arranged between the right surface of the check ring 7 on the radial outer side of the annular bulge 8 and the left surface of the liquid baffle plate 6, and the spring 1 pushes the liquid baffle plate 6 against the liquid inlet plate 2 and seals the liquid inlet hole 4;
the middle part of the retainer ring 7 is protruded along the radial direction to form a clamping part 9, the inner wall of the enclosure barrel 3 at the clamping part 9 is provided with a clamping groove, and the radial outer edge of the clamping part 9 is clamped in the clamping groove; the left end part of the enclosing cylinder 3 is bent downwards to form a positioning ring 10 used for preventing the retainer ring 7 from being separated from the enclosing cylinder 3 leftwards, and the radial inner edge of the positioning ring 10 is matched with the outer edge of the retainer ring 7 on the left side of the clamping part 9.
Because the retaining ring 7 and the valve seat are clamped and positioned by the positioning ring 10 instead of the prior interference fit, the retaining ring 7 does not need to be extruded into the valve seat under the action of pressure, and the phenomenon of pressing off aluminum scraps is avoided. The clamping fit and the positioning of the positioning ring 10 ensure that the check ring 7 cannot be separated from the valve seat, and the phenomena that the check ring 7, the valve and the spring 1 which fall off after the medium flows through flow into a system, the valve structure fails and the valve cannot be cut off reversely are avoided.
Of course, when the check ring 7 and/or the valve seat are made of aluminum materials, aluminum scraps are extruded; when the retainer ring 7 and/or the valve seat are made of steel, steel scraps are extruded.
The fit clearance between the circumferential surface of the valve and the hole wall of the inner hole of the retainer ring is 0.02-0.04 mm. The 0.02-0.04 mm is the data obtained by the experiment, the clearance is too small, although the sealing performance is not problematic, but the sliding friction force is greatly increased. If the clearance is too large, the sliding friction is small, but the sealing performance is deteriorated. The arrangement of the gap difference can not only ensure the sealing performance of the lubricating oil, but also keep the sliding friction force within a small range.
The outer surface of the left end part of the enclosing cylinder 3 is provided with a taper part 11 with a small left part and a big right part.
The setting of taper portion 11 has reduced the processing in hole groove, and more importantly is convenient for form holding ring 10 through pneumatic cylinder extrusion binding off very much, and the operation of being convenient for close up can guarantee to close up and target in place, makes the radial inner edge of holding ring 10 and the left retaining ring 7 outer fringe looks adaptation of joint portion 9. After the closing-in, the retainer ring 7 can be ensured not to be separated from the valve seat towards the left side, and the structure is very firm.
The liquid inlet hole 4 is in a horn shape with a large right and a small left. Is convenient to be installed on the oil path.
During operation, the utility model discloses the series connection assembly is on liquid pipeline, on the lubricating oil way of equipment such as motor vehicle or lathe. When no oil pressure exists in the lubricating oil path and the oil pressure of the liquid outlet hole 5 is higher than that of the liquid inlet hole 4, the valve slides to the right end of the enclosure cylinder 3 under the elastic action of the spring 1 and the oil pressure, and the liquid baffle 6 is tightly pressed on the liquid inlet plate 2, so that the liquid inlet hole 4 is separated from the liquid outlet hole 5, and the oil is prevented from flowing backwards.
When need normally pass through fluid, the oil pressure of feed liquor hole 4 department is higher than the oil pressure of play liquid hole 5 department, and the valve compression spring 1 left under the effect of oil pressure moves to the left side of going out liquid hole 5, makes feed liquor hole 4 and play liquid hole 5 switch on each other through the inner chamber of enclosing a protection section of thick bamboo 3 to make lubricating oil normally pass through the utility model discloses.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (4)
1. The valve structure for preventing the check ring from falling comprises a valve seat, a valve, the check ring and a spring, wherein the valve seat comprises a vertically arranged liquid inlet plate and an enclosure cylinder connected to the left side surface of the liquid inlet plate; a liquid inlet hole is formed in the liquid inlet plate on the radially inner side of the enclosure cylinder, and the diameter of the liquid inlet hole is smaller than that of the enclosure cylinder; the side wall of the enclosure cylinder is provided with a liquid outlet hole; the right end part of the valve extends radially to form a liquid baffle plate, the circumferential surface of the liquid baffle plate is in sliding fit with the inner wall of the enclosure cylinder,
the method is characterized in that:
the inner surface of the left end part of the enclosing cylinder is connected with a check ring, the inner hole of the check ring is smaller than the liquid inlet hole, the radial inner side of the right surface of the check ring is axially provided with an annular bulge, the spring is arranged between the right surface of the check ring on the radial outer side of the annular bulge and the left surface of the liquid baffle plate, and the spring pushes the liquid baffle plate against the liquid inlet plate and seals the liquid inlet hole; the valve is inserted into the inner hole of the retainer ring leftwards and is in sliding sealing fit with the hole wall of the inner hole of the retainer ring;
the middle part of the retainer ring is protruded along the radial direction to form a clamping part, the inner wall of the enclosure barrel at the clamping part is provided with a clamping groove, and the radial outer edge of the clamping part is clamped in the clamping groove; the left end part of the enclosure cylinder is bent downwards to form a positioning ring used for preventing the retainer ring from being separated from the enclosure cylinder leftwards, and the radial inner edge of the positioning ring is matched with the outer edge of the retainer ring on the left side of the clamping part.
2. A shutter structure for preventing a retainer ring from falling off according to claim 1, wherein: the fit clearance between the circumferential surface of the valve and the hole wall of the inner hole of the retainer ring is 0.02-0.04 mm.
3. A shutter structure for preventing a retainer ring from falling off according to claim 1, wherein: the outer surface of the left end part of the enclosing cylinder is provided with a taper part with a small left part and a big right part.
4. A shutter structure for preventing a retainer ring from falling off according to any one of claims 1 to 3, wherein: the liquid inlet hole is in a horn shape with a large right and a small left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361960.1U CN211976506U (en) | 2020-03-20 | 2020-03-20 | Valve structure for preventing check ring from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361960.1U CN211976506U (en) | 2020-03-20 | 2020-03-20 | Valve structure for preventing check ring from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211976506U true CN211976506U (en) | 2020-11-20 |
Family
ID=73379898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020361960.1U Active CN211976506U (en) | 2020-03-20 | 2020-03-20 | Valve structure for preventing check ring from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211976506U (en) |
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2020
- 2020-03-20 CN CN202020361960.1U patent/CN211976506U/en active Active
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