CN114321365B - Hydraulic sealing element with good sealing effect and sealing method - Google Patents
Hydraulic sealing element with good sealing effect and sealing method Download PDFInfo
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- CN114321365B CN114321365B CN202111682540.9A CN202111682540A CN114321365B CN 114321365 B CN114321365 B CN 114321365B CN 202111682540 A CN202111682540 A CN 202111682540A CN 114321365 B CN114321365 B CN 114321365B
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Abstract
The invention relates to the technical field of hydraulic sealing, in particular to a hydraulic sealing element with good sealing effect and a sealing method. Compared with the prior art, the hydraulic sealing element capable of automatically enhancing the sealing effect of the sealing position after installation is designed, the tensioning degree and the supporting degree of the hydraulic sealing element are maintained, the influence caused by corrosion, abrasion and borne pressure is reduced, meanwhile, the hydraulic sealing element can bear larger pressure according to the working state of a hydraulic component, and a better sealing effect is provided.
Description
Technical Field
The invention relates to the technical field of hydraulic sealing, in particular to a hydraulic sealing element with good sealing effect and a sealing method.
Background
The hydraulic seal is a material or a part for preventing fluid leakage from the adjacent joint surfaces and preventing foreign substances such as dust and moisture from entering parts inside the machine equipment, and plays a crucial role in the hydropneumatic integrity. The hydraulic sealing parts can be classified into shaft seals, hole seals, dust seals, guide rings, fixed seals, rotary seals and the like according to functions; it can be classified into butyl cyanide rubber, ethylene propylene diene monomer rubber, fluororubber, silica gel, fluorosilicone rubber, nylon, polyurethane, etc. according to the material classification.
However, the existing hydraulic seal still has the following problems when sealing: 1. after the existing hydraulic sealing element is installed for a period of time, the tensioning degree and the supporting degree of the hydraulic sealing element are often reduced due to the influence caused by corrosion, abrasion and borne pressure, so that the sealing performance is poor, even fluid leakage is caused, and the working effect of a hydraulic working device is influenced; 2. the pressure that current hydraulic seal spare bore when hydraulic pressure components and parts work is bigger, and the state of hydraulic seal spare when hydraulic pressure components and parts work is the same with when out of work, can't provide better sealed effect when hydraulic pressure components and parts work.
Disclosure of Invention
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme that the hydraulic sealing element with good sealing effect comprises a sealing ring, an annular groove, an annular supporting component, a first sealing component and a second sealing component, wherein the two side surfaces of the sealing ring are oppositely provided with the annular groove, the annular supporting component is fixed in the annular groove, the first sealing component is arranged in the middle of the outer side surface of the sealing ring, and the second sealing component is oppositely arranged on the two sides of the outer side surface of the sealing ring.
The first sealing assembly comprises an annular mounting groove, a first annular sheet, a second annular sheet, a first annular part, a second annular part, an annular heat-sensing sheet, heat-conducting rods, fixing rods and an elastic supporting mechanism, wherein the annular mounting groove is formed in the middle of the outer side surface of the sealing ring, the first annular sheet and the second annular sheet are sequentially arranged in the annular mounting groove from outside to inside, the first annular part is arranged on the outer side surface of the first annular sheet, the second annular part is arranged on the inner side surface of the second annular sheet, the second annular part is connected with the bottom wall of the annular mounting groove, the annular heat-sensing sheet is oppositely arranged on the outer side surface of the first annular part, one end, close to the second annular sheet, of the annular heat-sensing sheet is connected with a plurality of heat-conducting rods, the two fixing rods are oppositely arranged in the annular mounting groove, the heat-conducting rods are arranged on the fixing rods close to the first annular sheet, and the corresponding heat-conducting rods are connected through the elastic supporting mechanism, the elastic supporting mechanism is arranged in the annular mounting groove, and the annular mounting groove is used for supporting the first annular piece and the second annular piece.
Preferably, the section of the annular mounting groove is square.
Preferably, the outer diameter of the first annular part is the same as the outer diameter of the sealing ring.
Preferably, the elastic supporting mechanism comprises a mounting rod, a supporting slide rod, expanding gas and a sliding block, elastic support rod, No. two elastic support rod, fixture block and screens spring, even there is the installation pole between the heat conduction pole, the cavity has been seted up at installation pole middle part, both sides slidable mounting in the cavity has the support slide bar, the inside packing of cavity has inflation gas, the middle part of dead lever slides and is provided with the sliding block, support the slide bar and near on the sliding block, be connected through an elastic support rod between sliding block and the ring piece that is close to a ring piece one side, be close to between sliding block and the ring part No. two of ring piece one side and be connected through No. two elastic support rod, the holding tank has been seted up on the sliding block lateral wall, it is provided with the fixture block to slide in the holding tank, the fixture block passes through the screens spring and is connected with the holding tank, the initial condition of screens spring is compression state.
Preferably, the annular heat-sensitive sheet and the heat-conducting rod are both heat-conducting and can transfer heat to the expansion gas.
Preferably, the second sealing assembly comprises an annular extrusion part, a connecting groove, a push rod, a reset spring, a connecting rod, a limiting rod and a limiting spring, wherein annular groove groups are oppositely arranged on two sides of the outer side surface of the sealing ring, each annular groove group comprises a plurality of annular grooves, the annular extrusion part is arranged in each annular groove, each annular groove is communicated with the corresponding connecting groove, the connecting grooves are arranged on two side surfaces of the sealing ring, the push rod is arranged in each connecting groove in a sliding manner and is connected with the corresponding connecting groove through the reset spring, the reset spring is used for limiting the position of the push rod and controlling the push rod to reset when the hydraulic component does not work, the connecting rod is arranged at one end, close to the corresponding connecting groove, of the annular extrusion part and is attached to the push rod, one side of the connecting rod is connected with the limiting rod, the limiting rod is arranged on the side wall of the corresponding connecting groove in a sliding manner, and is connected with the side wall of the corresponding connecting groove through the limiting spring, the positions of the limiting rod and the connecting rod are limited through the limiting spring, so that the initial position of the annular extrusion part is limited.
Preferably, a trapezoidal push block is installed at one end of the push rod close to the inside of the annular groove, and an inclined plane is arranged at one end of the trapezoidal push block close to the connecting rod.
A sealing method of a hydraulic sealing element with good sealing effect comprises the following steps:
s1, installing the hydraulic sealing element in a hydraulic component to be sealed;
s2, in the debugging process of the hydraulic component, heat is generated by friction between the first annular component and the hydraulic component, the heat is transferred to expansion gas through the annular heat sensing sheet and the heat conducting rod, the expansion gas expands to eject the supporting slide rods on two sides, and the supporting slide rods push the sliding block to move in the direction away from the mounting rod, so that the sliding block compresses the first elastic supporting rod and the second elastic supporting rod, the first annular component is externally supported, the second annular component is internally retracted, and the sealing effect of the hydraulic sealing element after mounting is improved;
s3, when the hydraulic component works, the push rod is pushed by the pressure in the hydraulic component to move towards the connecting groove, the push rod extrudes the connecting rod to move towards the direction close to the annular groove, so that the connecting rod pushes the annular extrusion part to move outwards, the annular extrusion part is tightly attached to the inside of the hydraulic component, and the sealing effect of the hydraulic sealing element when the hydraulic component works is further enhanced.
(II) beneficial effect: 1. compared with the prior art, the hydraulic sealing element capable of automatically enhancing the sealing effect of the sealing position after installation is designed, the tensioning degree and the supporting degree of the hydraulic sealing element are maintained, the influence caused by corrosion, abrasion and borne pressure is reduced, meanwhile, the hydraulic sealing element can bear larger pressure according to the working state of a hydraulic component, and a better sealing effect is provided.
2. According to the invention, heat is generated by friction between the first annular component and the hydraulic component, the heat is transferred to the expansion gas through the annular heat sensing sheet and the heat conducting rod, so that the expansion gas expands to eject the supporting slide rods on the two sides, and the supporting slide rods push the sliding block to move towards the direction far away from the mounting rod, so that the sliding block compresses the first elastic support rod and the second elastic support rod, the first annular component is externally supported, and the second annular component is internally retracted, and the sealing effect of the hydraulic sealing element after mounting is improved.
3. When the hydraulic component works, the pressure in the hydraulic component pushes the push rod to move towards the connecting groove, so that the push rod (53) extrudes the connecting rod to move towards the direction close to the annular groove, the connecting rod pushes the annular extrusion part to move outwards, the annular extrusion part is tightly attached to the hydraulic component, and the sealing effect of the hydraulic sealing part during the working of the hydraulic component is further enhanced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2 in accordance with the present invention.
Fig. 4 is a sectional view taken along line B-B of fig. 2 in accordance with the present invention.
Fig. 5 is a partially enlarged view at X of fig. 3.
Fig. 6 is a partially enlarged view of fig. 3 at Y.
Fig. 7 is a partially enlarged view at Z of fig. 3.
In the figure: 1. a seal ring; 2. an annular groove; 3. an annular support member; 4. a first seal assembly; 41. an annular mounting groove; 42. a first annular sheet; 43. a second annular sheet; 44. a first annular member; 45. a second annular member; 46. an annular heat-sensitive sheet; 47. a heat conducting rod; 48. fixing the rod; 49. an elastic support mechanism; 491. mounting a rod; 492. supporting the sliding rod; 493. an expanding gas; 494. a sliding block; 495. a first elastic support rod; 496. a second elastic support rod; 497. a clamping block; 498. a clamping spring; 5. a second seal assembly; 51. an annular pressing member; 52. connecting grooves; 53. a push rod; 54. a return spring; 55. a connecting rod; 56. a limiting rod; 57. and a limiting spring.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, 2, 3 and 4, a hydraulic seal member with good sealing effect comprises a seal ring 1, an annular groove 2, an annular support member 3, a first seal assembly 4 and a second seal assembly 5, wherein the two side surfaces of the seal ring 1 are oppositely provided with the annular groove 2, the annular groove 2 is used for accommodating the annular support member 3, the annular support member 3 is fixed in the annular groove 2, the first seal assembly 4 is arranged in the middle of the outer side surface of the seal ring 1, and the second seal assembly 5 is oppositely arranged on the two sides of the outer side surface of the seal ring 1, wherein the first seal assembly 4 and the second seal assembly 5 are respectively used for enhancing the sealing effect after the seal ring 1 is installed and the sealing effect when the seal ring 1 works, the annular support member 3 has certain hardness and elasticity and is used for maintaining the annular state of the seal ring 1 and preventing the seal ring 1 from deforming due to overlarge pressure or other factors during installation or work, thereby ensuring the basic sealing effect of the sealing ring 1.
Referring to fig. 1, 4 and 5, the first sealing assembly 4 includes an annular mounting groove 41, a first annular plate 42, a second annular plate 43, a first annular component 44, a second annular component 45, an annular heat-sensing plate 46, a heat-conducting rod 47, a fixing rod 48 and an elastic supporting mechanism 49, wherein the annular mounting groove 41 is formed in the middle of the outer side surface of the sealing ring 1; the section of the annular mounting groove 41 is square, so that a first annular sheet 42 and a second annular sheet 43 which are the same in width can be conveniently mounted, the annular mounting groove 41 is sequentially provided with the first annular sheet 42 and the second annular sheet 43 from outside to inside, and the outer side surface of the first annular sheet 42 is provided with a first annular part 44; the outer diameter of the first annular part 44 is the same as that of the sealing ring 1, so that the first annular part 44 and the sealing ring 1 can form a complete annular sealing element, the second annular part 45 is mounted on the inner side surface of the second annular plate 43, the second annular part 45 is connected with the bottom wall of the annular mounting groove 41, the outer side surface of the first annular part 44 is relatively provided with an annular heat-sensing plate 46, one end of the annular heat-sensing plate 46, which is close to the second annular plate 43, is connected with a plurality of heat-conducting rods 47, two fixing rods 48 are relatively mounted in the annular mounting groove 41, the heat-conducting rods 47 are mounted on the fixing rods 48 which are close to the first annular plate 42, the corresponding heat-conducting rods 47 are connected through an elastic supporting mechanism 49, the elastic supporting mechanism 49 is mounted in the annular mounting groove 41, the annular mounting groove 41 is used for supporting the first annular plate 42 and the second annular plate 43, the first annular part 44 and the second annular part 45 are supported through the elastic supporting mechanism 49 after the sealing ring 1 is mounted, during the operation, in the debugging and installation stage, the sealing ring 1 is installed on the rod-shaped sealing device and the rod-shaped sealing device is installed in the hydraulic component, so that the rod-shaped sealing device drives the sealing ring 1 to reciprocate, heat is generated by friction between the surface of the first annular part 44 and the hydraulic component, the heat is transferred to the heat conducting rod 47 through the annular heat sensing sheet 46, the heat is transferred into the elastic supporting mechanism 49 through the heat conducting rod 47, the elastic supporting mechanism 49 is driven to operate, the first annular sheet 42 moves outwards through the elastic supporting mechanism 49 and the second annular sheet 43 contracts inwards, the first annular part 44 is tightly attached to the hydraulic component through multi-point support, the second annular part 45 is more tightly connected with the rod-shaped sealing device through the multi-point support, the support degree of the hydraulic sealing device is improved while the tension degree of the hydraulic sealing device is maintained, the contact between the elastic support mechanism and the rod-shaped sealing device and the hydraulic component is tighter, so that the sealing effect of the hydraulic sealing element after installation is improved, and in addition, the elastic support mechanism 49 can be driven to work in a mode of directly preheating the annular heat sensing piece 46.
Referring to fig. 5 and 6, the elastic supporting mechanism 49 includes a mounting rod 491, a supporting slide rod 492, an expanding gas 493, a sliding block 494, a first elastic support rod 495, a second elastic support rod 496, a clamping block 497 and a clamping spring 498, the mounting rod 491 is connected between the heat conducting rods 47, a cavity is formed in the middle of the mounting rod 491, the supporting slide rod 492 is slidably mounted on two sides in the cavity, the expanding gas 493 is filled in the cavity, and the volume of the expanding gas 493 is increased when the expanding gas 493 is heated; the annular heat sensing sheet 46 and the heat conducting rod 47 both have heat conductivity and can transfer heat to the expanding gas 493, a sliding block 494 is slidably arranged in the middle of the fixing rod 48, the supporting sliding rod 492 abuts against the sliding block 494, the sliding block 494 close to one side of the first annular sheet 42 is connected with the first annular sheet 42 through a first elastic supporting rod 495, the sliding block 494 close to one side of the second annular sheet 43 is connected with the second annular component 45 through a second elastic supporting rod 496, the first elastic supporting rod 495 and the second elastic supporting rod 496 are used for maintaining the initial state of the sliding block 494, an accommodating groove is formed in the side wall of the sliding block 494, a clamping block 497 is slidably arranged in the accommodating groove, the clamping block 497 is connected with the accommodating groove through a clamping spring 498, the initial state of the clamping spring 498 is a compression state, during specific work, after the heat conducting rod 47 transfers heat to the expanding gas 493, the volume of the expanding gas 493 is increased, therefore, the supporting slide rods 492 at two sides are ejected out of the cavity, at the same time, the supporting slide rods 492 are far away from the installation rod 491 and press the sliding block 494 to move in the direction far away from the installation rod 491, at the same time, the sliding block 494 presses the first elastic support rod 495 and the second elastic support rod 496, when the sliding block 494 moves to a proper position, the fixture block 497 pops out of the accommodating groove under the elastic action of the clamping spring 498, the position of the sliding block 494 is fixed through the fixture block 497 and the first elastic support rod 495 and the second elastic support rod 496 are pressed by a certain pressure, so that the first annular component 44 and the second annular component 45 are respectively clung to the surfaces of the rod-shaped sealing devices and the hydraulic components, and the sealing effect of the hydraulic sealing element is improved.
Referring to fig. 1 and 7, the second sealing assembly 5 includes an annular pressing part 51, a connecting groove 52, a push rod 53, a return spring 54, a connecting rod 55, a limiting rod 56, and a limiting spring 57, wherein two sides of the outer side surface of the sealing ring 1 are oppositely provided with an annular groove set, the annular groove set includes a plurality of annular grooves, the annular pressing part 51 is arranged in the annular groove, the annular grooves are communicated with the connecting groove 52, the connecting groove 52 is arranged on two side surfaces of the sealing ring 1, and the push rod 53 is slidably arranged in the connecting groove 52; the end of the push rod 53 close to the annular groove is provided with a trapezoidal push block, one end of the trapezoidal push block close to the connecting rod 55 is provided with an inclined plane, the push rod 53 is connected with the connecting groove 52 through a return spring 54, the return spring 54 is used for limiting the position of the push rod 53 and controlling the push rod 53 to reset when a hydraulic component does not work, one end of the annular extrusion part 51 close to the connecting groove 52 is provided with a connecting rod 55, one end of the connecting rod 55 close to the connecting groove 52 is tightly attached to the push rod 53, one side of the connecting rod 55 is connected with a limiting rod 56, the limiting rod 56 is arranged on the side wall of the connecting groove 52 in a sliding manner, the limiting rod 56 is connected with the side wall of the connecting groove 52 through a limiting spring 57, the positions of the limiting rod 56 and the connecting rod 55 are limited through the limiting spring 57, so as to limit the initial position of the annular extrusion part 51, when the hydraulic component works specifically, the pressure in the hydraulic component pushes the push rod 53 to move towards the connecting groove 52 and simultaneously compresses the return spring 54, the trapezoidal block on the push rod 53 gradually extrudes the connecting rod 55 to move towards the direction close to the annular groove, so that the connecting rod 55 pushes the annular extrusion part 51 to move outwards, the annular extrusion part 51 is tightly attached to the inside of the hydraulic component, the sealing effect of the hydraulic sealing element during the work of the hydraulic component is further enhanced, and the hydraulic sealing element can bear larger pressure conveniently.
A sealing method of a hydraulic sealing element with good sealing effect comprises the following steps:
s1, installing the hydraulic sealing element in a hydraulic component to be sealed;
s2, in the debugging process of the hydraulic component, heat is generated by friction between the first annular component 44 and the hydraulic component, the heat is transferred to the expansion gas 493 through the annular heat sensing sheet 46 and the heat conducting rod 47, the expansion gas 493 expands to eject the supporting slide bars 492 at two sides, the supporting slide bars 492 push the sliding block 494 to move in the direction far away from the mounting rod 491, so that the sliding block 494 compresses the first elastic supporting rod 495 and the second elastic supporting rod 496, the first annular component 44 is externally supported and the second annular component 45 is inwards retracted, and the sealing effect of the hydraulic seal after mounting is improved;
s3, when the hydraulic component works, the push rod 53 is pushed by the pressure in the hydraulic component to move towards the connecting groove 52, so that the push rod 53 extrudes the connecting rod 55 to move towards the direction close to the annular groove, and the connecting rod 55 pushes the annular extrusion part 51 to move outwards, so that the annular extrusion part 51 is tightly attached to the inside of the hydraulic component, and the sealing effect of the hydraulic sealing element when the hydraulic component works is further enhanced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a sealed effectual hydraulic seal spare, includes sealing ring (1), annular groove (2), annular supporting part (3), a seal assembly (4) and No. two seal assembly (5), its characterized in that: two side surfaces of the sealing ring (1) are oppositely provided with annular grooves (2), annular supporting parts (3) are fixed in the annular grooves (2), the middle part of the outer side surface of the sealing ring (1) is provided with a first sealing assembly (4), and two sides of the outer side surface of the sealing ring (1) are oppositely provided with a second sealing assembly (5); wherein:
the first sealing assembly (4) comprises an annular mounting groove (41), a first annular sheet (42), a second annular sheet (43), a first annular part (44), a second annular part (45), an annular heat-sensing sheet (46), a heat-conducting rod (47), a fixing rod (48) and an elastic supporting mechanism (49), wherein the annular mounting groove (41) is formed in the middle of the outer side surface of the sealing ring (1), the first annular sheet (42) and the second annular sheet (43) are sequentially arranged in the annular mounting groove (41) from outside to inside, the first annular part (44) is arranged on the outer side surface of the first annular sheet (42), the second annular part (45) is arranged on the inner side surface of the second annular sheet (43), the second annular part (45) is connected with the bottom wall of the annular mounting groove (41), the annular heat-sensing sheet (46) is oppositely arranged on the outer side surface of the first annular part (44), and one end, close to the second annular heat-sensing sheet (46), is connected with a plurality of heat-conducting rods (47), two fixing rods (48) are oppositely arranged in the annular mounting groove (41), the heat conducting rods (47) are arranged on the fixing rods (48) close to the first annular sheet (42), the corresponding heat conducting rods (47) are connected through an elastic supporting mechanism (49), the elastic supporting mechanism (49) is arranged in the annular mounting groove (41), and the annular mounting groove (41) is used for supporting the first annular sheet (42) and the second annular sheet (43);
the elastic supporting mechanism (49) comprises a mounting rod (491), a supporting slide rod (492), expansion gas (493), a sliding block (494), a first elastic support rod (495), a second elastic support rod (496), a clamping block (497) and a clamping spring (498), the mounting rod (491) is connected between the heat conducting rods (47), a cavity is formed in the middle of the mounting rod (491), the supporting slide rod (492) is slidably mounted on two sides in the cavity, the expansion gas (493) is filled in the cavity, the sliding block (494) is slidably arranged in the middle of the fixing rod (48), the supporting slide rod (492) abuts against the sliding block (494), the sliding block (494) close to one side of the first annular piece (42) is connected with the first annular piece (42) through the first elastic support rod (495), the sliding block (494) close to one side of the second annular piece (43) is connected with the second annular component (45) through the second elastic support rod (496), an accommodating groove is formed in the side wall of the sliding block (494), a clamping block (497) is arranged in the accommodating groove in a sliding mode, and the clamping block (497) is connected with the accommodating groove through a clamping spring (498);
the second sealing assembly (5) comprises an annular extrusion part (51), a connecting groove (52), a push rod (53), a return spring (54), a connecting rod (55), a limiting rod (56) and a limiting spring (57), wherein annular groove groups are oppositely arranged on two sides of the outer side surface of the sealing ring (1), each annular groove group comprises a plurality of annular grooves, the annular extrusion part (51) is arranged in each annular groove, the annular grooves are communicated with the connecting groove (52), the connecting groove (52) is arranged on two side surfaces of the sealing ring (1), the push rod (53) is arranged in each connecting groove (52) in a sliding manner, the push rod (53) is connected with the connecting groove (52) through the return spring (54), the connecting rod (55) is installed at one end, close to the connecting groove (52), of the connecting rod (55) is tightly attached to the push rod (53), the limiting rod (56) is connected to one side of the connecting rod (55), the limiting rod (56) is arranged on the side wall of the connecting groove (52) in a sliding mode, and the limiting rod (56) is connected with the side wall of the connecting groove (52) through a limiting spring (57).
2. The hydraulic seal with good sealing effect as claimed in claim 1, wherein: the section of the annular mounting groove (41) is square.
3. The hydraulic seal with good sealing effect as claimed in claim 1, wherein: the outer diameter of the first annular component (44) is the same as that of the sealing ring (1).
4. The hydraulic seal with good sealing effect as claimed in claim 1, wherein: the annular heat sensing sheet (46) and the heat conducting rod (47) are both heat-conducting and can transfer heat to the expansion gas (493).
5. The hydraulic seal with good sealing effect as claimed in claim 1, wherein: and a trapezoidal push block is arranged at one end of the push rod (53) close to the annular groove, and an inclined plane is arranged at one end of the trapezoidal push block close to the connecting rod (55).
6. A method of sealing a hydraulic seal with good sealing effect according to any one of claims 1 to 5, characterized in that: the sealing method comprises the following steps:
s1, installing the hydraulic sealing element in a hydraulic component to be sealed;
s2, in the debugging process of the hydraulic component, heat is generated by friction between the first annular component (44) and the hydraulic component, the heat is transferred to expansion gas (493) through the annular heat sensing sheet (46) and the heat conducting rod (47), the expansion gas (493) expands to eject the supporting slide rods (492) on two sides, the supporting slide rods (492) push the sliding block (494) to move in the direction away from the mounting rod (491), and therefore the sliding block (494) compresses the first elastic support rod (495) and the second elastic support rod (496), the first annular component (44) is externally supported and the second annular component (45) is retracted, and the sealing effect of the hydraulic seal after mounting is improved;
s3, when the hydraulic component works, the pressure in the hydraulic component pushes the push rod (53) to move towards the connecting groove (52), so that the push rod (53) extrudes the connecting rod (55) to move towards the direction close to the annular groove, the connecting rod (55) pushes the annular extrusion component (51) to move outwards, the annular extrusion component (51) is attached to the inside of the hydraulic component, and the sealing effect of the hydraulic sealing element when the hydraulic component works is further enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682540.9A CN114321365B (en) | 2021-12-30 | 2021-12-30 | Hydraulic sealing element with good sealing effect and sealing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111682540.9A CN114321365B (en) | 2021-12-30 | 2021-12-30 | Hydraulic sealing element with good sealing effect and sealing method |
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| CN114321365A CN114321365A (en) | 2022-04-12 |
| CN114321365B true CN114321365B (en) | 2022-09-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477093A (en) * | 1983-02-24 | 1984-10-16 | Gray Tool Company | Fire resistant connections and T-like sealing means therefor |
| CN110670548A (en) * | 2019-11-04 | 2020-01-10 | 河北聚源水利机械有限公司 | A high efficiency leak protection oil seal structure for hydraulic pressure dam |
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
| CN213145324U (en) * | 2020-08-07 | 2021-05-07 | 宁波市鄞州迈皓密封件有限公司 | High temperature resistant elastic sealing ring |
| CN214118952U (en) * | 2020-12-15 | 2021-09-03 | 中国神华煤制油化工有限公司 | Dry sealing device |
| CN215111133U (en) * | 2021-06-03 | 2021-12-10 | 江苏华冶液压机械有限公司 | Metal pipe connecting device with self-sealing function |
-
2021
- 2021-12-30 CN CN202111682540.9A patent/CN114321365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477093A (en) * | 1983-02-24 | 1984-10-16 | Gray Tool Company | Fire resistant connections and T-like sealing means therefor |
| CN110670548A (en) * | 2019-11-04 | 2020-01-10 | 河北聚源水利机械有限公司 | A high efficiency leak protection oil seal structure for hydraulic pressure dam |
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
| CN213145324U (en) * | 2020-08-07 | 2021-05-07 | 宁波市鄞州迈皓密封件有限公司 | High temperature resistant elastic sealing ring |
| CN214118952U (en) * | 2020-12-15 | 2021-09-03 | 中国神华煤制油化工有限公司 | Dry sealing device |
| CN215111133U (en) * | 2021-06-03 | 2021-12-10 | 江苏华冶液压机械有限公司 | Metal pipe connecting device with self-sealing function |
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|---|---|
| CN114321365A (en) | 2022-04-12 |
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