CN114776899B

CN114776899B - Mechanical sealing device

Info

Publication number: CN114776899B
Application number: CN202210479016.XA
Authority: CN
Inventors: 康文钡; 李代绪; 苏青
Original assignee: Zhejiang Luxi Seal Co ltd
Current assignee: Zhejiang Luxi Seal Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2024-06-28
Anticipated expiration: 2042-05-05
Also published as: CN114776899A

Abstract

The invention provides a mechanical sealing device, which relates to the technical field of sealing elements and solves the problem that production is affected due to the fact that oil dirt in a connecting sealing element needs to be completely disassembled when the oil dirt is cleaned, and comprises a first connecting element with a pipe cavity structure, wherein one end of the first connecting element is provided with an extended threaded pipe which is matched in a threaded hole, so that the first connecting element and the second connecting element are connected with each other, an oil pipe penetrates through the threaded pipe, a sinking cavity communicated with the pipe cavity of the threaded pipe is formed at the outer end of the threaded pipe, the cleaning rod can crush the oil dirt which is likely to be deeply sunk in the pipe cavity when the oil pipe continuously rotates in the pipe cavity, the oil dirt is discharged outwards when the cleaning rod swings back and forth along the radial direction of the pipe cavity, the whole sealing connecting element does not need to be completely disassembled in the whole cleaning process, the first connecting element and the second connecting element which form the connecting element are loosened, then the oil pipe is rapidly rotated, the time is saved, and an oil path is normally supplied in the cleaning process, and production is not affected.

Description

Mechanical sealing device

Technical Field

The invention relates to the technical field of sealing elements, in particular to a mechanical sealing device.

Background

The mechanical sealing element is a common part in the mechanical industry, for example, some mechanical industrial equipment can be provided with an oil tank, such as a punching machine, oil cylinder starting equipment and the like, an oil pipe can be installed on the oil tank, the oil pipe and the oil tank are fixed through a connecting element, one end of the connecting element is provided with a sealing gasket, oil leakage can be prevented when the connecting element is connected with the oil tank, the other end of the connecting element is provided with an O-shaped ring, oil leakage of the oil pipe can be prevented when the oil pipe is connected, and some connecting element also can be provided with a switching function, so that the connected oil pipe can flexibly rotate according to working requirements.

When the oil pipe connecting piece is in actual use, impurities in the equipment drop downwards due to the fact that oil circulates between the pipeline and the equipment along with the ageing of the equipment and the like, a large amount of oil dirt is attached to the inner wall of the oil pipe along with the fact that the oil circulates into the connecting piece, the existing cleaning mode is to disassemble the connecting piece, then disassemble the oil pipe and clean the oil dirt, and therefore operation is troublesome, normal circulation of an oil way can be influenced, and production is delayed.

Disclosure of Invention

The invention aims to solve the problem that oil dirt in the sealed oil pipe can be cleaned on the premise that the oil dirt does not need to be disassembled.

According to the technical scheme, the mechanical sealing device comprises a first connecting piece of a pipe cavity structure, a second connecting piece of the pipe cavity structure, a threaded hole in the pipe cavity of the second connecting piece is formed in the second connecting piece, an elongated threaded pipe is arranged at one end of the first connecting piece and is matched in the threaded hole, the first connecting piece and the second connecting piece are connected with each other, an oil pipe penetrates through the threaded pipe, a submerged cavity communicated with the pipe cavity of the threaded pipe is formed at the outer end of the threaded pipe, a flange plate with the middle part communicated with the pipe cavity of the oil pipe is formed at one time, the flange plate is rotatably arranged in the submerged cavity, the other end of the oil pipe extends outwards in the direction of the flange plate, a connecting seat with the middle part communicated with the threaded hole is formed at one end of the second connecting piece, a bitter drying hinge hole is formed in the connecting seat, a rotating shaft is arranged in each hinge hole, a cleaning rod is movably connected in the hinge hole, the pipe cavity of the first connecting piece and the second connecting piece is penetrated through the rotating shaft, a flange plate is formed at the outer end face of the pipe cavity of the first connecting piece, the cleaning rod is forced to be in the protruding mode, the protruding part of the annular flange plate is forced to be in the protruding mode, and the protruding end face of the annular flange plate is forced to be protruded out, and the end face is forced to rotate, and the end face is protruded out of the flange plate is arranged.

As a further preferred feature, the other end of the first connector facing away from the threaded tube is provided with a bearing, and the extended end of the oil tube extends through the bearing and is secured to the inner race of the bearing.

As a further preferable mode, a plurality of rolling pins are arranged in the sinking cavity along the annular trend of the sinking cavity, an O-shaped ring is arranged on the outer circular surface of the flange plate, an annular groove is formed in the end surface of the flange plate facing the sinking cavity, and the flange plate is positioned in the sinking cavity and is in rolling contact with the rolling pins.

As a further preferable mode, the first connecting piece is provided with an extrusion end close to the threaded pipe, the extrusion end is provided with an extrusion surface which is overlapped with the threaded pipe, the second connecting piece is provided with a bearing surface which corresponds to the extrusion surface, the threaded pipe is sleeved with a sealing ring and a locking washer, the sealing ring and the locking washer are extruded between the extrusion surface and the bearing surface after the first connecting piece and the second connecting piece are connected, and meanwhile the annular protrusion is extruded on the tilting part and forces the cleaning rod to rotate until contacting with the inner cavity wall of the oil pipe.

As a further preferable mode, the connecting seat is provided with a plurality of fixing holes in an annular array, and the outer end face of the connecting seat is provided with a sealing gasket.

As a further preferable aspect, the hinge hole is provided with a slope inclined toward the cleaning rod, a spring is fixed to the slope, and the other end of the spring leaks out of the hinge hole and is connected to the tilting part.

Further preferably, the cleaning lever has an inclined plate provided on an inner wall surface thereof in a longitudinal direction, and the inclined plate is an inclined lever gradually widened from one end of the raising portion to the other end thereof.

As a further preferable mode, the annular protrusion is provided with a plurality of notches, the notches are uniformly distributed on the annular protrusion, two sides of the notches are inclined planes, and when the annular protrusion synchronously rotates along with the flange plate, the notches are sequentially extruded on each tilting part.

Compared with the prior art, the invention has the beneficial effects that:

The oil pipe is sealed in the two lumen through the flange after the butt joint, oil leakage phenomenon can not appear when the oil pipe forms an oil supply loop with the oil pipe, except for realizing sealing connection, still make two connecting pieces conveniently disassemble, utilize this disassembling principle so that oil pipe's periodic cleaning has been set up the clearance pole of perk between the lumen of oil pipe and the lumen of second connecting piece, the clearance pole leans on the lumen inner wall when two connecting pieces are sealed with oil pipe through the butt joint, can not influence the normal circulation of fluid, when need to clear up the impurity in connecting piece and the oil pipe, first connecting piece makes its not hard up, simultaneously the perk end of clearance pole is in the lumen when losing the oil pipe extrusion, along with the rotation that oil pipe is incessant in the lumen, and make these clearance poles make a round trip along the radial direction of lumen wobbling, thereby the oil scale that the sediment on the pipe wall makes a round trip to have still can sink in the lumen when these clearance poles make a round trip along the radial direction of lumen wobbling, can also be with the clearance in the lumen, whole oil scale can not be in the pipeline can be in the pipeline along with the whole time of pipe, the whole process of cleaning is not need to roll down, the whole oil pipe is connected, the whole is not need to be in the pipeline is completely broken, and the process is connected, the oil pipe can be completely need to be completely to be removed, and the clean up is completely has no time, and can be connected, the whole is completely has been completely removed, and has need to clean.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present invention when assembled and sectioned;

fig. 2 is a schematic view of the first connector and the second connector of the sealing connector of fig. 1 according to the present invention when they are separated:

FIG. 3 is a schematic view of the sealing connection of FIG. 2 in another rotational perspective

FIG. 4 is a schematic illustration of a specific construction of the multiple cleaning bars of the present invention in a broken away interior;

fig. 5 is a schematic diagram of a specific structure of an oil pipe according to the present invention.

Detailed Description

The following description of the embodiments of the present invention, taken in conjunction with the accompanying drawings, will be clearly and fully described in terms of the drawings, wherein the embodiments described are some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.

One embodiment is shown in fig. 1-5.

The mechanical sealing device provided by the embodiment comprises a first connecting piece 1 with a pipe cavity structure, a second connecting piece 2 with a pipe cavity structure, a threaded hole 3 positioned in the pipe cavity of the second connecting piece 2 is formed in the second connecting piece 2, an extended threaded pipe 4 is arranged at one end of the first connecting piece 1, the threaded pipe 4 is matched in the threaded hole 3, the first connecting piece 1 and the second connecting piece 2 are mutually connected, an oil pipe 5 penetrates through the threaded pipe 4, a sinking cavity 6 communicated with the pipe cavity of the threaded pipe 4 is formed at the outer end of the threaded pipe 4, a flange plate 7 with the middle part communicated with the pipe cavity of the oil pipe 5 is formed at one time, the flange plate 7 is rotatably arranged in the sinking cavity 6, and the other end of the oil pipe 5 extends outwards in a direction deviating from the flange plate 7. And because still be equipped with the communicating connecting seat 8 of middle part and screw hole 3 in the one end of second connecting piece 2, on connecting seat 8 is connected this connecting piece's sealing member to the oil tank through fixed orifices 19 on the connecting seat 8, sealing washer 26 is located between oil tank and the connecting piece after the fixed, has played the effect of preventing the oil leak, the fluid in the oil tank is finally discharged outwards through oil pipe 5, or the fluid on the equipment is backward flow to the oil tank through oil pipe 5 in, in a word, realize synchronous fixed when in actual use, oil pipe 5 is docked in to second connecting piece 2 through first connecting piece 1, still has the leakproofness when two part connecting pieces dock, specific seal structure is: the first connecting piece 1 is provided with an extrusion end 14 close to the threaded pipe 4, the extrusion end 14 is provided with an extrusion surface 15 overlapped with the threaded pipe 4, the second connecting piece 2 is provided with a pressure bearing surface 16 corresponding to the extrusion surface 15, the threaded pipe 4 is sleeved with a sealing ring 17 and a locking washer 18, the sealing ring 17 and the locking washer 18 are extruded between the extrusion surface 15 and the pressure bearing surface 16 after the first connecting piece 1 and the second connecting piece 2 are connected, sealing is achieved, meanwhile, the annular bulge 13 is extruded on the tilting part 12, and the cleaning rod 11 is forced to rotate to be contacted with the inner cavity wall of the oil pipe 5.

As shown in fig. 1 and 4, a plurality of hinge holes 9 are formed in the connecting seat 8, a rotating shaft 10 is arranged in each hinge hole 9, a cleaning rod 11 is movably connected in each hinge hole 9 through the rotating shaft 10, the cleaning rod 11 is arranged in the tube cavities of the first connecting piece 1 and the second connecting piece 2, the cleaning rod 11 extends from one end hinged in the hinge holes 9 to the other end along the tube cavity of the oil tube 5, the hinged end of the cleaning rod 11 is provided with a raising part 12 protruding out of the hinge holes 9, the outer end face of the flange plate 7 is provided with an annular protrusion 13, so that the cleaning rod 11 is forced to rotate to be in contact with the inner cavity wall of the oil tube 5 when the annular protrusion 13 extrudes the raising part 12, namely, the inner end of the threaded tube 4 is utilized to press the flange plate 7 when the first connecting piece 1 is connected into the second connecting piece 2, the flange plate 7 is forced to be extruded onto the connecting seat 8, the tilting part 12 is spun while the flange plate and the connecting seat are extruded and butted, the tilting part 12 is forced to completely enter the hinging hole 9 around the rotating shaft 10, so that the other end extension rod connected with the tilting part 12 swings onto the inner wall of the pipe cavity of the oil pipe 5 in the radial direction, namely, when the oil pipe 5 is butted onto an oil tank as an oil supply pipeline through the connecting piece, a plurality of cleaning rods 11 are formed on the inner wall of the pipe cavity of the oil pipe 5, because a large amount of oil dirt is formed on the pipe wall of the oil pipe 5 after the oil pipe is used for a period of time, the cleaning rods 11 can be further displaced towards the axial direction of the oil pipe 5 in the radial direction by loosening the first connecting piece 1 by utilizing the fastening principle, and the concrete operation process is as follows: the first connecting piece 1 is rotated to enable the first connecting piece 1 and the second connecting piece 2 to generate a loosening effect, at the moment, the threaded pipe 4 on the first connecting piece 1 is far away from the flange plate 7, so that the flange plate 7 can axially loosen in the sinking cavity 6, the whole sealing connecting piece is not required to be completely disassembled in the whole cleaning process, the first connecting piece and the second connecting piece which form the connecting piece are only required to be loosened, then the oil pipe 5 is rapidly rotated to enable the outer end to pull the oil pipe 5, the flange plate 7 at the inner end of the oil pipe is far away from the raising part 12, the raising part 12 can swing towards the axial direction of the oil pipe 5 with the cleaning rod 11 when the squeezing effect of the flange plate 7 is lost, namely, the cleaning rod 11 can be separated from the inner wall of the pipe cavity of the oil pipe 5, the cleaning rod 11 can cause oil dirt attached to the inner wall of the pipe cavity to drop downwards, the whole sealing connecting piece is not required to be completely disassembled in the whole cleaning process, the oil pipe is rapidly rotated, the time is saved, and the oil path is normally supplied in the cleaning process, and production is not influenced. In order to improve reasonable structure, the hinge hole 9 is also provided with an inclined plane 20 inclined towards the direction of the cleaning rod 11, the inclined plane 20 is fixedly provided with a spring 21, the other end of the spring 21 leaks out of the hinge hole 9 and is connected with the tilting part 12, when the flange plate 7 is separated from the tilting part 12, the tilting part 12 is forced to separate from the inner wall of the tube cavity with the cleaning rod 11 under the action of the spring 21, and meanwhile, the cleaning rod 11 is made to swing away from the inner wall of the tube cavity and then be self-locked in position under the action of the spring 21.

As shown in fig. 4, since the cleaning rod 11 is smoothly separated from the inner wall of the lumen by the spring 21 when the flange plate 7 is separated from the tilted portion 12, the inclined plate 240 for increasing the self gravity of the extended end is provided on the inner wall surface of the cleaning rod 11 in the longitudinal direction, and the inclined plate 240 is an inclined rod gradually widening from one end to the other end of the tilted portion 12.

As shown in fig. 1 and 5, the annular protrusion 13 is provided with a plurality of notches 27, the plurality of notches 27 are uniformly distributed on the annular protrusion 13, two sides of the notches 27 are inclined planes, and when the annular protrusion 13 synchronously rotates along with the flange plate 7, the plurality of notches 27 are sequentially extruded on each tilting part 12. The oil pipe 5 can be rotated after loosening, the flange plate 7 at the inner end of the oil pipe can also rotate at the moment, the annular bulge 13 is arranged on the flange plate 7, a plurality of notches 27 rotating along with the annular bulge 13 are formed on the annular bulge 13, and the rotating track of the notches 27 is positioned on the position of the raising part 12, so that the raising part 12 frequently enters and exits into the notches 27 when the oil pipe 5 rotates, when the raising part 12 enters into the notches 27, the raising part 12 forms a movable space and enables the raising part to swing radially along with the cleaning rod 11 towards the axial direction of the oil pipe 5 under the action of the spring 21, otherwise, when the raising part 12 is separated from the notches 27 and is extruded by the bulge part of the annular bulge 13, the raising part 12 can bring the cleaning rod 11 to be attached to the wall of the pipe cavity of the oil pipe 5 again along with the axial direction far from the oil pipe 5, the frequent rotation action of the oil pipe 5, the cleaning rods 11 are caused to frequently swing between the inner wall of the pipe cavity and the axis of the pipe cavity, so that the oil dirt attached to the inner wall of the pipe cavity can be thoroughly cleaned, the cleaning rods 11 are attached to the inner wall of the pipe cavity of the oil pipe 5 when the two connecting pieces are locked and the oil pipe 5 is fastened in the pipe cavity for internal use, so that when the oil dirt is formed on the inner wall of the pipe cavity, the oil dirt is mostly attached to the cleaning rods 11, more specifically, the oil dirt is mostly attached to the inner wall of the inclined plate 240, the oil pipe 5 can rotate in the pipe cavity after loosening, the cleaning rods 11 can swing radially in the pipe cavity in the rotating process, the diameter of the pipe cavity is reduced when the inclined plate 240 swings along with the cleaning rods 11 to be close to the axis of the pipe cavity, the oil pressure is increased, and because the cleaning mode is not to dismantle the whole sealing connecting pieces, the oil supply is not required to be stopped, but only the oil pipe 5 is required to be rotated after the first connecting piece 1 is loosened, so that oil can thoroughly wash oil dirt on the inclined plate 240 into the oil, and finally the oil dirt is filtered by the filter element in the equipment.

In another embodiment: the bearing 22 is installed to the other end that first connecting piece 1 deviates from in screwed pipe 4, the extension end of oil pipe 5 runs through bearing 22 and is fixed in on the inner circle of bearing 22, make the oil pipe 5 after becoming flexible can freely rotate in the lumen of first connecting piece 1 and second connecting piece 2, in order to improve the stationarity when it rotates, consequently, be equipped with a plurality of kingpin 23 along its annular trend in sinking chamber 6 as shown in fig. 1, flange plate 7 has seted up annular channel 25 on facing to sinking chamber 6's terminal surface, flange plate 7 is located sinking chamber 6 and annular channel 25 rolling contact is on kingpin 23, still be equipped with on flange plate 7 excircle face simultaneously and be used for preventing that it from leading to the oil leakage to play relative seal effect.

The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.

Claims

1. A mechanical sealing device comprising a first connector (1) of a lumen structure, a second connector (2) of a lumen structure, characterized in that: threaded holes (3) positioned in the tube cavities of the first connecting piece (1) are formed in the second connecting piece (2), an extended threaded tube (4) is arranged at one end of the first connecting piece (1), the threaded tube (4) is matched in the threaded holes (3) so that the first connecting piece (1) and the second connecting piece (2) are connected with each other, an oil tube (5) penetrates through the threaded tube (4), a sinking cavity (6) communicated with the tube cavities of the threaded tube (4) is formed at the outer end of the threaded tube (4), a flange plate (7) with the middle part communicated with the tube cavities of the oil tube (5) is formed at one time at one end of the oil tube (5), The flange plate (7) is rotatably arranged in the sinking cavity (6), the other end of the oil pipe (5) extends outwards away from the flange plate (7), one end of the second connecting piece (2) is provided with a connecting seat (8) with the middle part communicated with the threaded hole (3), the connecting seat (8) is provided with a bitter and dry hinge hole (9), each hinge hole (9) is internally provided with a rotating shaft (10), one cleaning rod (11) is movably connected in each hinge hole (9) through the rotating shaft (10), the cleaning rod (11) is arranged in the tube cavities of the first connecting piece (1) and the second connecting piece (2), the cleaning rod (11) extends from one end hinged at the hinge hole (9) to the other end along the tube cavity of the oil pipe (5), the hinged end of the cleaning rod (11) is provided with a tilting part (12) protruding out of the hinged hole (9), the outer end face of the flange plate (7) is provided with an annular bulge (13), so that the cleaning rod (11) is forced to rotate until contacting the inner cavity wall of the oil pipe (5) when the tilting part (12) is extruded by the annular bulge (13), a plurality of fixing holes (19) are formed in the connecting seat (8) in an annular array, the outer end face of the connecting seat (8) is provided with a sealing gasket (26), the other end of the first connecting piece (1) deviating from the threaded pipe (4) is provided with a bearing (22), the extending end of the oil pipe (5) penetrates through the bearing (22) and is fixed on the inner ring of the bearing (22), A plurality of rolling pins (23) are arranged in the sinking cavity (6) along the annular trend of the sinking cavity, an O-shaped ring (24) is arranged on the outer circular surface of the flange plate (7), an annular groove (25) is formed in the end surface of the flange plate (7) facing the sinking cavity (6), the flange plate (7) is positioned in the sinking cavity (6) and the annular groove (25) is in rolling contact with the rolling pins (23), an extrusion end (14) close to the threaded pipe (4) is arranged on the first connecting piece (1), an extrusion surface (15) lapped with the threaded pipe (4) is arranged on the extrusion end (14), a bearing surface (16) corresponding to the extrusion surface (15) is arranged on the second connecting piece (2), The screw tube (4) is sleeved with a sealing ring (17) and a locking washer (18), the sealing ring (17) and the locking washer (18) are extruded between an extrusion surface (15) and a bearing surface (16) after the first connecting piece (1) and the second connecting piece (2) are connected, the annular bulge (13) is extruded on the tilting part (12) and forces the cleaning rod (11) to rotate until contacting the inner cavity wall of the oil tube (5), an inclined surface (20) inclined towards the direction of the cleaning rod (11) is arranged on the hinging hole (9), a spring (21) is fixed on the inclined surface (20), the other end of the spring (21) leaks out of the hinging hole (9) and is connected with the tilting part (12), the cleaning rod is characterized in that an inclined plate (240) is arranged on the inner wall surface of the cleaning rod (11) along the length direction of the cleaning rod, the inclined plate (240) is an inclined rod which gradually widens from one end of the tilting part (12) to the other end of the cleaning rod, a plurality of notches (27) are formed in the annular protrusion (13), the notches (27) are uniformly distributed on the annular protrusion (13), the two sides of the notches (27) are inclined surfaces, and when the annular protrusion (13) synchronously rotates along with the flange plate (7), the notches (27) are sequentially extruded on each tilting part (12).