CN210830458U

CN210830458U - Composition structure of packing assembly

Info

Publication number: CN210830458U
Application number: CN201921213256.5U
Authority: CN
Inventors: 戴菁菁
Original assignee: Zhejiang Hengze Machinery Co ltd
Current assignee: Zhejiang hengze metallurgical and Chemical Machinery Co.,Ltd.
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-06-23
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a packing component's integrated configuration, the pipeline comprises a pipe, be equipped with the piston rod in the pipeline, the outside cover of piston rod is equipped with spacing ring and annular packing groove, the inner wall of pipeline and the outer wall fixed connection of spacing ring, be equipped with the sealing washer between spacing ring and the piston rod, the spacing ring is located the below in annular packing groove, the annular opening in annular packing groove is located the one side that is close to the piston rod, the outer wall in annular packing groove contacts with the inner wall of pipeline. A filler unit's component structure, when wearing and tearing appear in the drilled packing ring, can be through pressing annular drilled packing groove for the drilled packing ring hugs closely the outside of piston rod, and then reduces the drilled packing ring inner wall and appear wearing and tearing to the influence of leakproofness, and improved holistic leakproofness, make the drilled packing ring hug closely together each other, prevent that the medium from leaking outward, be convenient for simultaneously change whole annular drilled packing groove, improved the installation effectiveness.

Description

Composition structure of packing assembly

Technical Field

The utility model relates to a packing sealing technique field, in particular to packing assembly's component structure.

Background

The packing sealing is a dynamic sealing device which generates pressing force between a packing, a rotating part and a fixing part through the self-tightening action of pre-tightening or medium pressure, has more structural forms and mainly comprises the packing, a packing box and a packing fixing part, common packing materials comprise asbestos fabrics, carbon fibers, rubber, flexible graphite, engineering plastics and the like, are prefabricated into rings or strips and adopt a multi-ring or spiral multi-layer structure, and along with the use of a piston rod, the inner wall of an annular packing ring is worn, so that a gap is formed between the piston rod and a sealing ring, and the sealing performance is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a component structure of packing subassembly can effectively solve in the background art along with the use of piston rod, and wearing and tearing can appear in the annular sealing ring inner wall for appear the gap between piston rod and the sealing ring, and then influence the problem of seal.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a composition structure of a packing assembly comprises a pipeline, a piston rod is arranged in the pipeline, a limiting ring and an annular packing groove are sleeved outside the piston rod, the inner wall of the pipeline is fixedly connected with the outer wall of the limiting ring, a sealing ring is arranged between the limiting ring and the piston rod, the limiting ring is positioned below the annular packing groove, an annular opening of the annular packing groove is positioned on one side close to the piston rod, the outer wall of the annular packing groove is contacted with the inner wall of the pipeline, the bottom end of the annular packing groove is contacted with the top end of the limiting ring, a choke ring, a first tangential ring, a radial ring, a second tangential ring and a throttle ring are sequentially sleeved outside the piston rod, the choke ring, the first tangential ring, the radial ring, the second tangential ring and the throttle ring are all positioned in the annular packing groove, and the inner walls of the choke ring, the first tangential ring, the radial ring, the second tangential ring and the throttle ring are all contacted with the outer wall of the piston, the inner wall symmetry of pipeline has seted up the recess, be equipped with the elastic membrane in the recess, the inner wall and the elastic membrane fixed connection of recess, the elastic membrane keeps away from one side of recess and flushes with the inner wall of pipeline, be equipped with clamping mechanism between elastic membrane and the recess and be connected, just the elastic membrane is located one side of annular filler groove, the outside cover of piston rod is equipped with the pipeline of pressing that is located the pipeline, press the bottom of pipeline and contact with the top in annular filler groove, the top of pressing the pipeline extends to the top of pipeline, the outside cover of piston rod is equipped with the pressing ring that is located the pipeline top, press the clamping ring and press and be connected through pressing mechanism between the pipeline.

Preferably, the outside compression spring of piston rod is located including the cover to pressing mechanism, just compression spring is located the clamping ring and presses between the pipeline, the through-hole has been seted up to the top symmetry of clamping ring, be equipped with first threaded rod in the through-hole, the bottom of first threaded rod and the top fixed connection of pipeline, first threaded rod top extends to the top of clamping ring, just the outside cover of first threaded rod is equipped with the nut that is located the clamping ring top.

Preferably, clamping mechanism is including setting up the splint in the recess, one side of elastic membrane is hugged closely to one side of splint, threaded hole is seted up to one side inner wall of recess, just the one end of threaded hole is linked together with the outer wall of pipeline, threaded hole is equipped with the second threaded rod, the one end of second threaded rod is passed through the bearing with one side of splint and is connected, the other end of second threaded rod is connected with the carousel that is located the pipeline outside.

Preferably, the outer part of the rotating disc is sleeved with an anti-slip ring.

Preferably, the sum of the thicknesses of the choke ring, the first tangential ring, the radial ring, the second tangential ring and the throttle ring is equal to the groove depth of the annular packing groove.

Compared with the prior art, the utility model discloses following beneficial effect has: through setting up the choking ring, first tangential ring, radial ring, second tangential ring, the choke ring, annular packing groove and clamping mechanism's mating reaction, when wearing and tearing appear as the packing ring, can be through pressing down annular packing groove, make the packing ring hug closely the outside of piston rod, and then reduce the influence of wearing and tearing to the leakproofness appearing in the packing ring inner wall, and the holistic leakproofness has been improved, through setting up annular packing groove, press the pipeline, press the mating reaction of clamping ring and pressing mechanism, make the packing ring hug closely together each other, prevent that the medium from leaking outward, be convenient for simultaneously change whole annular packing groove, and the installation effectiveness is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a composition structure of a packing assembly of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a flow choking ring of the packing assembly of the present invention;

FIG. 4 is a schematic structural view of a first tangential ring of a component structure of a packing assembly of the present invention;

fig. 5 is a schematic structural view of a radial ring of a packing assembly of the present invention;

FIG. 6 is a schematic structural view of a second tangential ring of a component structure of a packing assembly of the present invention;

fig. 7 is a schematic structural view of a restrictor ring of the present invention.

In the figure: 1. a pipeline; 2. a piston rod; 3. a limiting ring; 4. a seal ring; 5. an annular packing groove; 6. a choking ring; 7. a first tangential ring; 8. a radial ring; 9. a second tangential ring; 10. a restrictor ring; 11. a groove; 12. an elastic film; 13. pressing the pipeline; 14. pressing a ring; 15. a compression spring; 16. a through hole; 17. a first threaded rod; 18. a nut; 19. a splint; 20. a threaded hole; 21. a second threaded rod; 22. a bearing; 23. a turntable.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-7, a packing assembly comprises a pipeline 1, a piston rod 2 is arranged in the pipeline 1, a limit ring 3 and an annular packing groove 5 are sleeved outside the piston rod 2, the inner wall of the pipeline 1 is fixedly connected with the outer wall of the limit ring 3, a seal ring 4 is arranged between the limit ring 3 and the piston rod 2, the limit ring 3 is arranged below the annular packing groove 5, the annular packing groove 5 is made of elastic material, the annular opening of the annular packing groove 5 is arranged at one side close to the piston rod 2, the outer wall of the annular packing groove 5 is contacted with the inner wall of the pipeline 1, the bottom end of the annular packing groove 5 is contacted with the top end of the limit ring 3, a choke ring 6, a first tangential ring 7, a radial ring 8, a second tangential ring 9 and a choke ring 10 are sequentially sleeved outside the piston rod 2, and the choke ring 6, the first tangential ring 7, the radial ring 8, the second tangential ring 9 and the choke ring 10 are all arranged in the annular, the inner walls of the choke ring 6, the first tangential ring 7, the radial ring 8, the second tangential ring 9 and the throttle ring 10 are all in contact with the outer wall of the piston rod 2, grooves 11 are symmetrically formed in the inner wall of the pipeline 1, elastic membranes 12 are arranged in the grooves 11, the inner walls of the grooves 11 are fixedly connected with the elastic membranes 12, one sides, far away from the grooves 11, of the elastic membranes 12 are flush with the inner wall of the pipeline 1, clamping mechanisms are arranged between the elastic membranes 12 and the grooves 11 for connection, the elastic membranes 12 are located on one sides of the annular packing grooves 5, pressing pipelines 13 located in the pipeline 1 are sleeved outside the piston rod 2, the bottom ends of the pressing pipelines 13 are in contact with the top ends of the annular packing grooves 5, the top ends of the pressing pipelines 13 extend to the upper portion of the pipeline 1, pressing rings 14 located above the pipeline 1 are sleeved outside the piston rod 2, and the pressing pipelines;

the pressing mechanism comprises a compression spring 15 sleeved outside the piston rod 2, the compression spring 15 is positioned between the pressing ring 14 and the pressing pipeline 13, through holes 16 are symmetrically formed in the top end of the pressing ring 14, a first threaded rod 17 is arranged in each through hole 16, the bottom end of each first threaded rod 17 is fixedly connected with the top end of the corresponding pipeline 1, the top end of each first threaded rod 17 extends to the upper side of the corresponding pressing ring 14, and a nut 18 positioned at the top end of the corresponding pressing ring 14 is sleeved outside each first threaded rod 17; the clamping mechanism comprises a clamping plate 19 arranged in the groove 11, one side of the clamping plate 19 is tightly attached to one side of the elastic membrane 12, a threaded hole 20 is formed in the inner wall of one side of the groove 11, one end of the threaded hole 20 is communicated with the outer wall of the pipeline 1, a second threaded rod 21 is arranged in the threaded hole 20, one end of the second threaded rod 21 is connected with one side of the clamping plate 19 through a bearing 22, and the other end of the second threaded rod 21 is connected with a turntable 23 positioned outside the pipeline 1; an anti-slip ring is sleeved outside the rotary table 23; the sum of the thicknesses of the choke ring 6, the first tangential ring 7, the radial ring 8, the second tangential ring 9 and the throttle ring 10 is equal to the groove depth of the annular packing groove 5.

It should be noted that, the present invention is a packing assembly structure, when in use, the pressing ring 14 moves downwards by rotating the nut 18, and then presses the compression spring 15, and applies downward force to the pressing pipe 13 by the elasticity of the compression spring 15, and then by the cooperation of the pressing pipe 13, the spacing ring 3 and the annular packing groove 5, the choking ring 6, the first tangential ring 7, the radial ring 8, the second tangential ring 9 and the throttle ring 10 are tightly attached together, the first sealing effect is achieved by the sealing ring 4, and then the leaked high-pressure gas is converted into middle and bottom pressure gas by the throttle ring 10, the second sealing is achieved by the second tangential ring 9, and then the pressure is reduced again by the radial ring 8, and the third sealing is achieved by the first tangential ring 7, finally the function of preventing air flow is achieved by the choking ring 6, and the whole sealing performance is greatly improved, the medium is prevented from leaking outwards, when wearing and tearing appear in the filler ring, the carousel 23 is rotated, and then presses elastic membrane 12 through second threaded rod 21 drive splint 19 for the piston rod 2 is hugged closely all the time to the filler ring in annular gland 5, and then reduces the influence of wearing and tearing appear in the filler ring inner wall to the leakproofness.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A packing assembly component structure, characterized in that: comprises a pipeline (1), a piston rod (2) is arranged in the pipeline (1), a limit ring (3) and an annular packing groove (5) are sleeved outside the piston rod (2), the inner wall of the pipeline (1) is fixedly connected with the outer wall of the limit ring (3), a sealing ring (4) is arranged between the limit ring (3) and the piston rod (2), the limit ring (3) is positioned below the annular packing groove (5), the annular opening of the annular packing groove (5) is positioned at one side close to the piston rod (2), the outer wall of the annular packing groove (5) is contacted with the inner wall of the pipeline (1), the bottom end of the annular packing groove (5) is contacted with the top end of the limit ring (3), a choke ring (6), a first tangential ring (7), a radial ring (8), a second tangential ring (9) and a throttle ring (10) are sequentially sleeved outside the piston rod (2), the flow blocking ring (6), the first tangential ring (7), the radial ring (8), the second tangential ring (9) and the throttling ring (10) are all located in the annular packing groove (5), the inner walls of the flow blocking ring (6), the first tangential ring (7), the radial ring (8), the second tangential ring (9) and the throttling ring (10) are all in contact with the outer wall of the piston rod (2), grooves (11) are symmetrically formed in the inner wall of the pipeline (1), elastic membranes (12) are arranged in the grooves (11), the inner walls of the grooves (11) are fixedly connected with the elastic membranes (12), one side, far away from the grooves (11), of each elastic membrane (12) is flush with the inner wall of the pipeline (1), a clamping mechanism is arranged between each elastic membrane (12) and each groove (11) for connection, each elastic membrane (12) is located on one side of the annular packing groove (5), and a pressing pipeline (13) located in the pipeline (1) is sleeved outside the piston rod (2), the bottom of pressing pipeline (13) contacts with the top of annular packing groove (5), the top of pressing pipeline (13) extends to the top of pipeline (1), the outside cover of piston rod (2) is equipped with and is located pressing ring (14) of pipeline (1) top, pressing ring (14) and press and be connected through pressing mechanism between pipeline (13).

2. The packing set constituent structure according to claim 1, wherein: outside compression spring (15) of piston rod (2) are located including the cover to pressing mechanism, just compression spring (15) are located according to ring (14) and press between pipeline (13), through-hole (16) have been seted up to the top symmetry of according to ring (14), be equipped with first threaded rod (17) in through-hole (16), the bottom of first threaded rod (17) and the top fixed connection of pipeline (1), first threaded rod (17) top extends to the top according to ring (14), just the outside cover of first threaded rod (17) is equipped with nut (18) that are located according to ring (14) top.

3. The packing set constituent structure according to claim 1, wherein: clamping mechanism is including setting up splint (19) in recess (11), one side of elastic membrane (12) is hugged closely to one side of splint (19), threaded hole (20) are seted up to one side inner wall of recess (11), just the one end of threaded hole (20) is linked together with the outer wall of pipeline (1), be equipped with second threaded rod (21) in threaded hole (20), bearing (22) are passed through with one side of splint (19) to the one end of second threaded rod (21) and are connected, the other end and the carousel (23) that are located pipeline (1) outside of second threaded rod (21) are connected.

4. A packing set constituent structure according to claim 3, wherein: the outer part of the rotary disc (23) is sleeved with an anti-skid ring.

5. The packing set constituent structure according to claim 1, wherein: the sum of the thicknesses of the choke ring (6), the first tangential ring (7), the radial ring (8), the second tangential ring (9) and the throttle ring (10) is equal to the groove depth of the annular packing groove (5).