CN216305961U

CN216305961U - Pressurizing rubber water stop ring

Info

Publication number: CN216305961U
Application number: CN202121453320.4U
Authority: CN
Inventors: 张家艳; 秦君; 郭在能; 付克茂; 鲁力; 朱江
Original assignee: Hubei Wangxin Construction Co ltd
Current assignee: Hubei Wangxin Construction Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-04-15
Anticipated expiration: 2031-06-29

Abstract

The utility model provides a pressurizing rubber water stop ring which comprises a bottom plate, wherein a plurality of first fasteners used for being connected with a working well hole inlet are uniformly distributed on the periphery of the bottom plate, a positioning counter bore is formed in the outer side surface of the bottom plate, a water stop ring is arranged in the positioning counter bore, a pressing plate is propped against the outer side surface of the water stop ring, and a second fastener used for limiting the water stop ring on the bottom plate is arranged on the outer side surface of the pressing plate. Through the setting of sealing washer, during the construction is advanced on the top, the pipeline drives annular elastic plate toward enstrophe, and the sealing resilience sticiss the pipeline outer lane, produces sealed effect at both contact surfaces, and compensates sealing washer the central axis and pipeline axis in certain extent disalignment, improves sealed effect, guarantees the normal clear of push pipe construction.

Description

Pressurizing rubber water stop ring

Technical Field

The utility model belongs to the technical field of pipe jacking construction, and particularly relates to a pressurizing rubber water stop ring.

Background

In the construction of jacking pipes, the water stop ring at the entrance to the cave of the working well plays an important role, the overbreak space and the mud bin space form a closed space, and after the resistance-reducing mud is injected into the outer wall of the pipe, a mud sleeve in a stable state is formed to wrap a suspension pipeline, so that the friction resistance is well reduced. Rubber seal is in the exit hole installation back usually, because the position can not be adjusted, in case seal the central axis and the pipeline axis disalignment, will take place thick liquid and cutting mud sediment and return from the space of digging excessively and advance the working well, cause lubricating mud extravagant on the one hand, on the other hand can cause the mud sediment gathering to produce and embrace the pipe phenomenon, and mild condition will increase the jacking resistance, will lock the pipeline when serious, leads to the unable normal clear of push pipe construction.

Therefore, the utility model of the pressurizing rubber water stop ring is very necessary.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a pressurizing rubber water stop ring, which is used for compensating the non-concentricity of the central axis of the water stop ring and the axis of a pipeline within a certain range in jacking construction, improving the sealing effect and ensuring the normal operation of the jacking construction.

The technical scheme of the utility model is realized as follows:

the utility model provides a pressurizing rubber water stop ring which comprises a bottom plate, wherein a plurality of first fasteners for connecting with a working well hole inlet are uniformly distributed on the periphery of the bottom plate, a positioning counter bore is formed in the outer side surface of the bottom plate, a water stop ring is arranged in the positioning counter bore, a pressing plate is propped against the outer side surface of the water stop ring, and a second fastener for limiting the water stop ring on the bottom plate is arranged on the outer side surface of the pressing plate; the water stop ring comprises an annular elastic plate, a sealing part is arranged on the inner side of the annular elastic plate, an annular cavity is formed in the middle of the sealing part, a pressurizing passage is formed in the middle of the annular elastic plate, the inner end of the pressurizing passage is communicated with the annular cavity, the outer end of the pressurizing passage extends to the edge of the annular elastic plate, and a pressurizing joint is arranged at the outer end of the pressurizing passage.

On the basis of the technical scheme, preferably, the inner side edge of the pressure plate is provided with a protruding part, the middle part of the protruding part is provided with an annular groove, one side of the annular groove facing the sealing part is provided with an annular notch, and a toggle assembly is arranged in the annular groove.

Further, it is preferred, stir the subassembly and include that first stirring ball and second stir the ball, and first stirring ball and second stir equal swing joint of ball in the ring channel to stir at first stirring ball and second and be equipped with between the ball and stir the strip, should stir the one end of strip and first stirring ball and link to each other, should stir the other end of strip and second and stir the ball and link to each other, and stir the strip and be located the outside of annular gap.

Further, preferably, the pressure plate is provided with an adjusting long hole, and the adjusting long hole extends along the central direction of the pressure plate.

Preferably, the section of the annular groove is circular, the inner diameter of the annular groove is larger than the outer diameters of the first stirring ball and the second stirring ball, and the opening size of the annular gap is smaller than the outer diameters of the first stirring ball and the second stirring ball.

Preferably, the joint of the annular groove and the annular notch is an arc transition surface.

Preferably, the outer side surface of the sealing part is a convex arc surface.

Compared with the prior art, the utility model has the following beneficial effects:

(1) by arranging the water stop ring, during jacking construction, the pipeline drives the annular elastic plate to turn inwards, the sealing part rebounds to press the outer ring of the pipeline, a sealing effect is generated on the contact surface of the annular elastic plate and the outer ring of the pipeline, the central axis of the water stop ring and the axis of the pipeline are compensated within a certain range of different axial degrees, the sealing effect is improved, and normal operation of pipe jacking construction is guaranteed;

(2) through the arrangement of the poking assembly, the poking strip in the U-shaped structure can be used for stretching into the contact part of the sealing part and the pipeline to clean foreign matters in the contact part or help the appearance of the sealing part to be unfolded, and further, a better sealing effect is achieved;

(3) through the setting that pressurizes the joint, utilize and supply pressure equipment to connect and pressurize the joint to the internal pressurization of annular chamber, ensure at the maximum allowable pressure range, increased the contact force of kick-backing on the one hand behind the pressurization, on the other hand can compensate contact failure's place, reach better sealed effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic perspective view of the toggle assembly of the present invention;

FIG. 5 is a schematic view of the present invention in a sealed state;

FIG. 6 is a schematic structural view of the toggle assembly of the present invention;

the attached drawings are as follows:

s, a working well; 1. a base plate; 2. a first fastener; 3. positioning the counter bore; 4. a water stop ring; 41. an annular elastic plate; 42. a sealing part; 43. an annular cavity; 44. a pressurizing passage; 45. a pressurizing joint; 5. pressing a plate; 51. a boss portion; 52. an annular groove; 53. an annular gap; 54. adjusting the long hole; 6. a second fastener; 7. the component is stirred; 71. a first dial ball; 72. a second dial ball; 73. the bar is toggled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, with reference to fig. 2-6, the embodiment of the utility model discloses a pressurized rubber water stop ring, which comprises a bottom plate 1, wherein a plurality of first fasteners 2 for connecting with a hole inlet of a working well S are uniformly distributed on the periphery of the bottom plate 1, the first fasteners 2 adopt expansion bolts, positioning counter bores 3 are formed in the outer side surface of the bottom plate 1, water stop rings 4 are arranged in the positioning counter bores 3, the water stop rings 4 are made of rubber materials with high elasticity, a pressing plate 5 is propped against the outer side surface of each water stop ring 4, second fasteners 6 for limiting the water stop rings 4 on the bottom plate 1 are arranged on the outer side surface of the pressing plate 5, and the second fasteners 6 adopt pressing bolts; the water stop ring 4 includes an annular elastic plate 41, a sealing portion 42 is disposed on the inner side of the annular elastic plate 41, an annular cavity 43 is disposed in the middle of the sealing portion 42, a pressurizing passage 44 is disposed in the middle of the annular elastic plate 41, the inner end of the pressurizing passage 44 communicates with the annular cavity 43, the outer end of the pressurizing passage 44 extends toward the edge of the annular elastic plate 41, and a pressurizing joint 45 is disposed at the outer end of the pressurizing passage 44.

The inner side edge of the pressure plate 5 is provided with a convex part 51, the middle part of the convex part 51 is provided with an annular groove 52, one side of the annular groove 52 facing the sealing part 42 is provided with an annular gap 53, and the annular groove 52 is internally provided with the toggle assembly 7.

The toggle assembly 7 comprises a first toggle ball 71 and a second toggle ball 72, the first toggle ball 71 and the second toggle ball 72 are movably connected in the annular groove 52, a toggle strip 73 is arranged between the first toggle ball 71 and the second toggle ball 72, one end of the toggle strip 73 is connected with the first toggle ball 71, the other end of the toggle strip 73 is connected with the second toggle ball 72, and the toggle strip 73 is positioned outside the annular gap 53. The distance between the first dial ball 71 and the second dial ball 72 is reduced, so as to extrude the dial bar 73, and finally extrude the dial bar 73 into a U-shaped structure as shown in fig. 6, wherein the end of the U-shaped structure can extend to the direction of the sealing portion 42. When the poor condition of sealing appears in the contact site of sealing 42 and pipeline, probably because sealing 42 has the foreign matter with the pipeline contact site or sealing 42 does not stretch out well and cause, then, usable stirring strip 73 that is the U type structure stretches into the contact site of sealing 42 and pipeline, clears up the foreign matter here, or helps the appearance of sealing 42 to expand, and then, reaches better sealed effect.

The pressing plate 5 is provided with an adjusting long hole 54, and the adjusting long hole 54 extends along the center direction of the pressing plate 5. The installation position of the pressing plate 5 can be adjusted as required, and the installation convenience is improved.

The annular groove 52 has a circular cross section, the inner diameter of the annular groove 52 is larger than the outer diameters of the first and

second dial balls

71 and 72, and the opening size of the annular gap 53 is smaller than the outer diameters of the first and

second dial balls

71 and 72. The first toggle ball 71 and the second toggle ball 72 are ensured to be capable of adjusting positions in the annular groove 52, and meanwhile, the first toggle ball 71 and the second toggle ball 72 are prevented from sliding off from the annular gap 53 when moving along the annular groove 52.

The junction of the annular groove 52 and the annular notch 53 is a circular arc transition surface. It is advantageous to improve the smoothness of the movement of the toggle assembly 7 in the circumferential direction of the annular groove 52.

The outer side surface of the seal portion 42 is formed as a convex arc surface. The sealing effect of the sealing part 42 and the outer side surface of the pipeline is improved, and the phenomenon that wrinkles appear at the sealing position is avoided.

The working principle of the utility model is as follows:

in the utility model, as shown in figure 1, when the equipment is installed, a bottom plate 1 is fixed at the opening of a working well by using a first fastening piece 2, then a water stop ring 4 is tightly pressed on the bottom plate 5 by using a pressing plate 5 and is fixedly connected by using a second fastening piece 6, and the position of a pressurizing joint 45 on the water stop ring 4 is arranged at a position convenient for a person to operate when the equipment is installed.

As shown in fig. 5, during the pushing operation, the pipe drives the annular elastic plate 41 to turn inward, the sealing portion 42 rebounds to press the outer ring of the pipe, and a sealing effect is generated at the contact surface of the two. Utilize and supply pressure equipment to connect and pressurize joint 45 to pressurize in annular cavity 43, ensure at the maximum allowable pressure range, increased the resilience contact force on the one hand after pressurizing, on the other hand can compensate contact failure's place, reach better sealed effect.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressurization type rubber seal ring, includes bottom plate (1), its characterized in that: a plurality of first fasteners (2) used for being connected with a working well hole inlet are uniformly distributed on the periphery of the bottom plate (1), a positioning counter bore (3) is formed in the outer side surface of the bottom plate (1), a water stop ring (4) is arranged in the positioning counter bore (3), a pressing plate (5) is propped against the outer side surface of the water stop ring (4), and a second fastener (6) used for limiting the water stop ring (4) on the bottom plate (1) is arranged on the outer side surface of the pressing plate (5); the water stop ring (4) comprises an annular elastic plate (41), a sealing part (42) is arranged on the inner side of the annular elastic plate (41), an annular cavity (43) is formed in the middle of the sealing part (42), a pressurizing passage (44) is formed in the middle of the annular elastic plate (41), the inner end of the pressurizing passage (44) is communicated with the annular cavity (43), the outer end of the pressurizing passage (44) extends to the edge of the annular elastic plate (41), and a pressurizing joint (45) is arranged at the outer end of the pressurizing passage (44).

2. The pressurized rubber water stop according to claim 1, wherein: the pressure plate (5) inboard edge is equipped with bellying (51), and annular groove (52) have been seted up in this bellying (51) middle part, and annular gap (53) have been seted up to one side that this annular groove (52) faced sealing part (42), and wherein, it has stir subassembly (7) to embed in annular groove (52).

3. The pressurized rubber water stop according to claim 2, wherein: stir subassembly (7) and dial ball (72) including first ball (71) of dialling and second, and first ball (71) of dialling and the equal swing joint of second ball (72) of dialling are in ring channel (52) to dial at first ball (71) of dialling and second and dial and be equipped with between ball (72) and dial and stir strip (73), the one end of should stir strip (73) links to each other with first ball (71) of dialling, the other end of should stir strip (73) links to each other with second ball (72) of dialling, and stir strip (73) and be located the outside of annular breach (53).

4. The pressurized rubber water stop according to claim 1, wherein: the pressing plate (5) is provided with an adjusting long hole (54), and the adjusting long hole (54) extends along the center direction of the pressing plate (5).

5. The pressurized rubber water stop according to claim 3, wherein: the section of the annular groove (52) is circular, the inner diameter of the annular groove (52) is larger than the outer diameters of the first stirring ball (71) and the second stirring ball (72), and the opening size of the annular gap (53) is smaller than the outer diameters of the first stirring ball (71) and the second stirring ball (72).

6. The pressurized rubber water stop according to claim 5, wherein: the joint of the annular groove (52) and the annular notch (53) is provided with an arc transition surface.

7. The pressurized rubber water stop according to claim 1, wherein: the outer side surface of the sealing part (42) is an outward convex arc surface.