CN213451679U - Sealing structure for high-pressure pneumatic butter machine - Google Patents
Sealing structure for high-pressure pneumatic butter machine Download PDFInfo
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- CN213451679U CN213451679U CN202022558091.4U CN202022558091U CN213451679U CN 213451679 U CN213451679 U CN 213451679U CN 202022558091 U CN202022558091 U CN 202022558091U CN 213451679 U CN213451679 U CN 213451679U
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Abstract
The utility model provides a seal structure for on pneumatic butter machine of high pressure, includes the upper seal spare, locates the last sealed hole on the upper seal spare, its characterized in that: an annular upper sealing groove is formed in the inner wall of the orifice at the lower end of the upper sealing hole; the upper sealing groove is provided with a lower sealing element matched with the upper sealing groove, and the lower end of the lower sealing element protrudes downwards out of the upper sealing element; an oil leakage preventing structure is arranged between the upper end face of the lower sealing element and the upper side groove wall of the upper sealing groove; the oil leakage preventing structure comprises a sealing washer which is attached to the upper side groove wall of the upper sealing groove, and the sealing washer is annular; the outer wall of the lower end of the lower sealing element is provided with a lower clamping part which is attached to the lower end face of the upper sealing element, the lower clamping part is annular, and the outer wall of the lower clamping part is coplanar with the outer wall of the upper sealing element. The utility model discloses a seal structure for on the pneumatic butter machine of high pressure can still guarantee the leakproofness all the time when reducing seal structure's part quantity.
Description
Technical Field
The utility model relates to a seal structure, especially a seal structure for on pneumatic butter machine of high pressure.
Background
High-pressure pneumatic butter machine is one kind and can pour into the butter into the equipment of lubricated station through increasing pressure, high-pressure pneumatic butter machine then comprises the butter bucket that is used for placeeing the butter and the oiling pump of locating butter bucket top, get into the oiling pump when compressed air, piston in the oiling pump then can drive the piston rod and take place to remove, and piston rod end connection presses the oil pan, when pressing the oil pan along with the piston rod removes, it then can extrude the butter in the butter bucket to press the oil pan, thereby realize the effect of pressure boost, only need open the grease gun this moment, butter in the butter bucket then can be sprayed and go out through the grease gun under highly compressed effect, finally pour into in to lubricated station.
In order to solve the above problems, a sealing structure formed by embedding and assembling a plurality of sealing elements made of metal materials is used for replacing the O-shaped ring, the sealing structure can adopt at least three sealing elements for always ensuring the sealing performance, when the sealing of one sealing element is poor, other sealing elements still can play a sealing effect, but the sealing structure has too many sealing elements, the problems in use are more, for example, the embedding and assembling between the sealing elements are related, therefore, the requirement on the machining precision of the sealing element is extremely high, especially under the condition that at least more than three sealing elements exist, if the precision is deviated, a complete sealing structure cannot be assembled at all, the normal use and the sealing effect of the sealing structure are influenced, and under the condition that the number of the sealing elements of the sealing structure is too large, the machining cost is increased accordingly, and if the number of the sealing elements is reduced, the sealing effect of the sealing structure is weakened, and the sealing property cannot be ensured all the time.
Disclosure of Invention
The utility model aims to solve the current technical problem and provide a seal structure for on pneumatic butter machine of high pressure, it can still can guarantee the leakproofness all the time when reducing seal structure's part quantity.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a seal structure for on pneumatic butter machine of high pressure, including last sealing member, locate the last sealed hole on the sealing member, its characterized in that: an annular upper sealing groove is formed in the inner wall of the orifice at the lower end of the upper sealing hole; the upper sealing groove is provided with a lower sealing element matched with the upper sealing groove, and the lower end of the lower sealing element protrudes downwards out of the upper sealing element; an oil leakage preventing structure is arranged between the upper end face of the lower sealing element and the upper side groove wall of the upper sealing groove; the oil leakage preventing structure comprises a sealing washer which is attached to the upper side groove wall of the upper sealing groove, and the sealing washer is annular; the outer wall of the lower end of the lower sealing element is provided with a lower clamping part which is attached to the lower end face of the upper sealing element, the lower clamping part is annular, and the outer wall of the lower clamping part is coplanar with the outer wall of the upper sealing element; a plurality of first annular grooves which are longitudinally and uniformly distributed are formed in the outer wall of the lower sealing element; a first O-shaped ring matched with the first annular groove is arranged in the first annular groove; the lower sealing piece is provided with a lower sealing hole which is coaxial with the upper sealing hole and is communicated with the upper sealing hole; an annular lower sealing groove is formed in the orifice at the lower end of the lower sealing hole; a buffer ring sheet matched with the lower sealing groove is arranged in the lower sealing groove; the peripheral surface of the buffer ring sheet is provided with a tensioning groove matched with the buffer ring sheet; the tensioning groove is internally provided with a rubber gasket matched with the tensioning groove, and the peripheral surface of the rubber gasket is attached to the inner wall of the lower sealing groove.
The oil leakage prevention structure comprises an oil leakage prevention ring arranged between the sealing washer and the upper end face of the lower sealing piece, and the oil leakage prevention ring is made of rubber; the thickness of the oil leakage prevention ring is gradually increased from the middle part to the lower end; the lower surface of the oil leakage prevention ring is provided with an annular extrusion groove.
The cross section of the extrusion groove is in an inverted isosceles triangle shape.
The outer wall of the upper end of the upper sealing element is provided with an annular upper clamping part.
A second annular groove which is annular is formed in the corner position formed by the intersection of the outer wall of the upper sealing element and the lower end face of the upper clamping part; and a second O-shaped ring matched with the second annular groove is arranged in the second annular groove.
The outer wall of the lower clamping part is provided with a plurality of third annular grooves which are longitudinally and uniformly distributed; and a third O-shaped ring matched with the third annular groove is arranged in the third annular groove.
The utility model has the advantages that:
compared with the prior art, the sealing structure for the high-pressure pneumatic butter machine adopting the structure of the utility model can be assembled into a complete sealing structure only by the upper sealing element and the lower sealing element, the number of the sealing elements of the sealing structure is reduced to the maximum extent, under the condition of greatly reducing the number of the sealing elements, the requirement on the processing precision of the sealing element is reduced, the processing cost is also reduced, a plurality of seals can be formed through the buffer ring sheet, the oil leakage prevention ring and the sealing washer, when one of the seals fails, the subsequent seals still can play a role in sealing, and even if the seal fails due to the weakening of elasticity, the expansion of the oil-leakage-proof ring can still be ensured by extruding the inner wall of the extrusion groove with grease, therefore, the sealing performance of the sealing structure can be always ensured while the number of components of the sealing structure is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a sealing structure for a high-pressure pneumatic butter machine.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1, the present invention provides a sealing structure for a high-pressure pneumatic butter machine, which includes an upper sealing member 1 and an upper sealing hole 2 disposed on the upper sealing member 1, wherein an annular upper sealing groove 3 is disposed on an inner wall of a lower port of the upper sealing hole 2; the upper sealing groove 3 is provided with a lower sealing element 4 matched with the upper sealing groove, and the lower end of the lower sealing element 4 downwards protrudes out of the upper sealing element 1; an oil leakage prevention structure is arranged between the upper end face of the lower sealing element 4 and the upper side groove wall of the upper sealing groove 3; the oil leakage preventing structure comprises a sealing washer 5 which is attached to the upper side groove wall of the upper sealing groove 3, and the sealing washer 5 is annular; the outer wall of the lower end of the lower sealing element 4 is provided with a lower clamping part 6 which is attached to the lower end face of the upper sealing element 1, the lower clamping part 6 is annular, and the outer wall of the lower clamping part 6 is coplanar with the outer wall of the upper sealing element 1; a plurality of first annular grooves 7 which are longitudinally and uniformly distributed are arranged on the outer wall of the lower sealing element 4; a first O-shaped ring 8 matched with the first annular groove 7 is arranged in the first annular groove; the lower sealing element 4 is provided with a lower sealing hole 9 which is coaxial with the upper sealing hole 2 and is communicated with the upper sealing hole; an annular lower sealing groove 10 is formed in the orifice at the lower end of the lower sealing hole 9; a buffer ring sheet 12 matched with the lower sealing groove 10 is arranged in the lower sealing groove; the peripheral surface of the buffer ring piece 12 is provided with a tensioning groove 1201 matched with the buffer ring piece; the tensioning groove 1201 is internally provided with a matched rubber gasket 11, and the peripheral surface of the rubber gasket 11 is attached to the inner wall of the lower sealing groove 10.
The oil leakage prevention structure comprises an oil leakage prevention ring 13 arranged between the sealing washer 5 and the upper end face of the lower sealing element 4, and the oil leakage prevention ring 13 is made of rubber; the thickness of the oil leakage prevention ring 13 is gradually increased from the middle part to the lower end; the lower surface of the oil leakage prevention ring 13 is provided with an annular extrusion groove 14.
The cross section of the extrusion groove 14 is in an inverted isosceles triangle shape.
The outer wall of the upper end of the upper sealing element 1 is provided with an annular upper clamping part 15.
A second annular groove 16 in an annular shape is formed in the corner position formed by the intersection of the outer wall of the upper sealing element 1 and the lower end face of the upper clamping part 15; a second O-ring 17 matched with the second annular groove 16 is arranged in the second annular groove.
The outer wall of the lower clamping part 6 is provided with a plurality of third annular grooves 18 which are uniformly distributed in the longitudinal direction; a third O-ring 19 matched with the third annular groove 18 is arranged in the third annular groove.
The utility model discloses a use method as follows:
when the sealing structure is used practically, the upper sealing element 1 and the lower sealing element 4 are all sleeved outside the piston rod, the inner wall of the upper sealing element 1 and the inner wall of the lower sealing element 4 are all attached to the inner wall of the piston rod, the upper sealing element 1 and the lower sealing element 4 are all embedded in the movable hole of the piston rod, the outer wall of the upper sealing element 1 and the outer wall of the lower sealing element 4 are all attached to the inner wall of the movable hole of the piston rod, the upper clamping part 15 at the upper end of the upper sealing element 1 is attached to the edge of the orifice at the upper end of the movable hole of the piston rod, and the lower.
Because the outer wall of the lower sealing element 4 is provided with the first annular grooves 7 which are longitudinally and uniformly distributed, the first annular grooves 7 are internally provided with the first O-shaped rings 8 matched with the first annular grooves 8, and the existence of the first O-shaped rings 8 can effectively improve the sealing property between the upper sealing element 1 and the lower sealing element 4, even if the processing precision of the upper sealing groove 3 of the upper sealing element 1 and the processing precision of the outer wall of the lower sealing element 4 are insufficient, a gap appears between the outer wall of the lower sealing element 4 and the inner wall of the upper sealing groove 3, the sealing property between the lower sealing element 4 and the upper sealing groove 3 can be ensured by the first O-shaped rings 8, so that the processing precision requirement on the upper sealing groove 3 and the lower sealing element 4 is not high, the processing process becomes simpler and more convenient, the processing cost is effectively reduced, and the embedded assembly between the upper sealing element 1 and the lower sealing element 4 is facilitated, the number of parts of the sealing structure is effectively reduced, the processing cost is further reduced, and the condition that the sealing structure is easy to damage due to too many parts can be avoided.
When the grease in the grease barrel leaks to the inner space of the grease injection pump through the movable hole of the piston rod, the buffer ring sheet 12 forms a first seal, the grease leaking upwards is blocked, at the moment, the inner wall of the buffer ring sheet 12 is pressed tightly on the outer wall of the piston rod by the elasticity of the rubber gasket 11, the sealing effect of the buffer ring sheet 12 is effectively ensured, when the grease flows through the gap between the inner wall of the buffer ring plate 12 and the outer wall of the piston rod, the oil pressure of the grease extrudes the inner wall of the buffer ring plate 12, at the moment, the buffer ring plate 12 generates elasticity and buffers the oil pressure to reduce the oil pressure, and when the oil pressure is reduced, the grease loses the force of continuously leaking upwards, thereby avoiding the situation that the grease leaks into the inner space of the oil injection pump under the action of oil pressure, playing the role of preventing oil leakage, and the elasticity of the rubber gasket 11 can be effectively held on the buffering ring sheet 12, thereby effectively improving the pressure-relieving effect of the buffering ring sheet 12.
When the rubber gasket 11 is loosened due to elastic weakening, the oil pressure of grease leaking into the gap between the inner wall of the lower seal groove 10 and the outer peripheral surface of the rubber gasket 11 is still applied to the buffer ring sheet 12 through the rubber gasket 11, and the inner hole of the buffer ring sheet 1 is further contracted, so that the inner wall of the buffer ring sheet 12 is further attached to the outer wall of the piston rod, and the sealing effect of the buffer ring sheet 12 is ensured.
When the leaked butter still leaks upwards after being buffered by the buffering ring sheet 12, the oil leakage prevention ring of the oil leakage prevention structure forms a second seal, the sealing washer 5 of the oil leakage prevention structure forms a first seal, the sealing effect of the sealing structure is always ensured, the lower surface of the oil leakage prevention ring 13 is provided with an annular extrusion groove 14, when the butter leaks upwards to the position of the oil leakage prevention ring 13, the butter enters the extrusion groove 14 through a gap between the lower end surface of the oil leakage prevention ring 13 and the upper end surface of the lower sealing member 4, the oil pressure in the extrusion groove 14 is continuously increased along with the continuous entering of the butter into the extrusion groove 14, under the action of high pressure, the butter in the extrusion groove extrudes the inner wall of the extrusion groove 14, the lower part of the oil leakage prevention ring 13 expands outwards, at the moment, the inner wall of the lower part of the oil leakage prevention ring 13 is further attached to the outer wall of the piston rod, the outer wall of the lower part of the oil leakage prevention ring 13 is further attached to, effectively improve leak protection oil ring 13's sealed effect, and leak protection oil ring 13 thickness increases progressively from middle part to lower extreme, 14 transversal isosceles triangle that personally submits of extrusion groove, when butter extrusion groove 14 inner wall, leak protection oil ring 13 lower part then can be the outside quick expansion of the type of falling V form, effectively improve sealed efficiency, even leak protection oil ring 13 elasticity weakening, utilize the butter to extrude the mode that realizes leak protection oil ring 13's expansion to extrusion groove 14 inner wall still can guarantee leak protection oil ring 13's sealed effect all the time.
In conclusion, the present invention can assemble a complete sealing structure only by the upper sealing member 1 and the lower sealing member 4, thereby reducing the number of sealing members of the sealing structure to the maximum extent, and under the condition of greatly reducing the number of sealing members, the requirement on the processing precision of the sealing element is reduced, the processing cost is also reduced, three seals can be formed through the buffer ring sheet 12, the oil leakage prevention ring 13 and the sealing washer 5, when one of the seals fails, the subsequent seals still can play a role in sealing, and even if the seal fails due to the weakening of elasticity, the seal effect of the oil leakage prevention ring 13 can be always ensured by extruding the inner wall of the extrusion groove 14 by using the grease to expand the oil leakage prevention ring 13, therefore, the sealing performance of the sealing structure can be always ensured while the number of components of the sealing structure is reduced.
Go up the corner position that the terminal surface intersects and forms under sealing member 1 outer wall and the last block portion 15 and be annular second ring channel 16, be equipped with in the second ring channel 16 rather than assorted second O type circle 17, the existence of second O type circle 17 not only can effectively improve the leakproofness between sealing member 1 outer wall and the piston rod activity hole inner wall, and can effectively improve the leakproofness between block portion 15 and the piston rod activity hole upper end drill way border.
The outer wall of the lower clamping part 6 is provided with a plurality of third annular grooves 18 which are longitudinally and uniformly distributed, the third annular grooves 18 are internally provided with third O-shaped rings 19 matched with the third annular grooves, and the existence of the third O-shaped rings 19 can effectively improve the sealing property between the outer wall of the lower clamping part 6 and the inner wall of the piston rod movable hole.
Claims (6)
1. The utility model provides a seal structure for on pneumatic butter machine of high pressure, includes the upper seal spare, locates the last sealed hole on the upper seal spare, its characterized in that: an annular upper sealing groove is formed in the inner wall of the orifice at the lower end of the upper sealing hole; the upper sealing groove is provided with a lower sealing element matched with the upper sealing groove, and the lower end of the lower sealing element protrudes downwards out of the upper sealing element; an oil leakage preventing structure is arranged between the upper end face of the lower sealing element and the upper side groove wall of the upper sealing groove; the oil leakage preventing structure comprises a sealing washer which is attached to the upper side groove wall of the upper sealing groove, and the sealing washer is annular; the outer wall of the lower end of the lower sealing element is provided with a lower clamping part which is attached to the lower end face of the upper sealing element, the lower clamping part is annular, and the outer wall of the lower clamping part is coplanar with the outer wall of the upper sealing element; a plurality of first annular grooves which are longitudinally and uniformly distributed are formed in the outer wall of the lower sealing element; a first O-shaped ring matched with the first annular groove is arranged in the first annular groove; the lower sealing piece is provided with a lower sealing hole which is coaxial with the upper sealing hole and is communicated with the upper sealing hole; an annular lower sealing groove is formed in the orifice at the lower end of the lower sealing hole; a buffer ring sheet matched with the lower sealing groove is arranged in the lower sealing groove; the peripheral surface of the buffer ring sheet is provided with a tensioning groove matched with the buffer ring sheet; the tensioning groove is internally provided with a rubber gasket matched with the tensioning groove, and the peripheral surface of the rubber gasket is attached to the inner wall of the lower sealing groove.
2. The sealing structure for the high-pressure pneumatic butter machine of claim 1, characterized in that: the oil leakage prevention structure comprises an oil leakage prevention ring arranged between the sealing washer and the upper end face of the lower sealing piece, and the oil leakage prevention ring is made of rubber; the thickness of the oil leakage prevention ring is gradually increased from the middle part to the lower end; the lower surface of the oil leakage prevention ring is provided with an annular extrusion groove.
3. The sealing structure for the high-pressure pneumatic butter machine of claim 2, characterized in that: the cross section of the extrusion groove is in an inverted isosceles triangle shape.
4. The sealing structure for the high-pressure pneumatic butter machine of claim 1, characterized in that: the outer wall of the upper end of the upper sealing element is provided with an annular upper clamping part.
5. The sealing structure for the high-pressure pneumatic butter machine of claim 4, characterized in that: a second annular groove which is annular is formed in the corner position formed by the intersection of the outer wall of the upper sealing element and the lower end face of the upper clamping part; and a second O-shaped ring matched with the second annular groove is arranged in the second annular groove.
6. The sealing structure for the high-pressure pneumatic butter machine of claim 1, characterized in that: the outer wall of the lower clamping part is provided with a plurality of third annular grooves which are longitudinally and uniformly distributed; and a third O-shaped ring matched with the third annular groove is arranged in the third annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558091.4U CN213451679U (en) | 2020-11-09 | 2020-11-09 | Sealing structure for high-pressure pneumatic butter machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022558091.4U CN213451679U (en) | 2020-11-09 | 2020-11-09 | Sealing structure for high-pressure pneumatic butter machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213451679U true CN213451679U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022558091.4U Active CN213451679U (en) | 2020-11-09 | 2020-11-09 | Sealing structure for high-pressure pneumatic butter machine |
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| Country | Link |
|---|---|
| CN (1) | CN213451679U (en) |
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2020
- 2020-11-09 CN CN202022558091.4U patent/CN213451679U/en active Active
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