CN217559357U

CN217559357U - Waterproof sealing device for pipeline joint

Info

Publication number: CN217559357U
Application number: CN202221812817.5U
Authority: CN
Inventors: 桑钰博; 陈书杰; 高辉; 桑俊安
Original assignee: Henan Kunjin Metal Mstar Technology Co ltd
Current assignee: Henan Kunjin Metal Mstar Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-11
Anticipated expiration: 2032-07-14

Abstract

The utility model provides a pipeline seam waterproof sealing device, including sealing washer and piston ring, the piston ring compresses tightly the sealing washer through tight mechanism that rises and makes it hug closely in pipeline seam department, and tight mechanism that rises is provided with the tight screw rod that rises including establishing the backup pad in piston ring opening both sides and inlaying the tight board that rises of establishing in the piston ring opening in one of them backup pad, all is provided with the tight screw rod in top of vertical arrangement in the one side that two backup pads are close, and under the tight state that rises, the tight screw rod one end roof pressure that rises is in another backup pad, and the one end roof pressure of the tight screw rod in two tops is on the tight board that rises. The utility model discloses the cooperation of the screw rod that rises and backup pad has formed a heavy tight effect that rises, has the double effect that rises in the tight board embedding piston ring opening that rises, even the setting that rises by two is taken place to shift along with the passage of piping lane service life and also can guarantee that the sealing washer hugs closely the inner wall of pipeline seam crossing all the time, has guaranteed the safe in utilization of piping lane, prolongs its life of piping lane.

Description

Waterproof sealing device for pipeline joint

Technical Field

The utility model relates to a waterproof sealing device especially relates to a pipeline seam waterproof sealing device.

Background

At present, china is greatly promoting the construction of urban underground pipe galleries, the waterproof sealing of the open cut type pipe gallery is generally realized by installing a water stop on the outer wall of the pipe gallery building, and the shield type circular pipe cannot be provided with the water stop on the outer side of the pipe wall, so that the waterproof sealing is realized by adopting an end face sealing mode. The waterproof mode of end face sealing can only play a role in waterproof by requiring the tight butt joint of the end faces of two sections of pipelines, and in the process of pipeline installation, because the shield type circular pipe is heavy, the construction space in the tunnel is limited, the tight butt joint between the end faces of the pipelines is difficult to realize, and the good waterproof sealing effect is difficult to achieve.

In addition, the waterproof sealing mode adaptability of end face sealing is not enough, and along with service life's process, slight deformation and displacement can appear in pipeline seam department, produce the problem of infiltration easily, influence the safe in utilization and the life of piping lane.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of above-mentioned prior art, the utility model provides a waterproof sealing of pipeline seam waterproof sealing device that waterproof sealing is effectual, can adapt to the slight deformation of pipeline and displacement.

In order to achieve the above object, the utility model provides a waterproof sealing device for pipeline joints, including a sealing ring and a piston ring with an opening, the piston ring compresses tightly the sealing ring through a tensioning mechanism so that the outer side surface of the sealing ring clings to the pipeline joint, the tensioning mechanism is arranged at the opening of the piston ring, the tensioning mechanism comprises two vertically arranged supporting plates which are oppositely arranged at two sides of the opening of the piston ring and a tensioning plate which is embedded in the opening of the piston ring, the upper ends of the two supporting plates are respectively fixed on the piston ring, transversely arranged connecting plates are respectively fixed at the opposite sides of the two supporting plates, vertically arranged threaded connecting holes are respectively arranged on the two connecting plates, and the two connecting plates are vertically arranged in a staggered manner so that the two connecting plates are connected through connecting screws which sequentially pass through the two threaded connecting holes in a non-tensioning state; the supporting plate is provided with a horizontally arranged threaded mounting hole, the axis of the threaded mounting hole and the axis of the two threaded connecting holes are respectively positioned in different vertical planes so as to prevent interference between a tensioning screw rod installed in the threaded mounting hole and a jacking screw rod installed in the threaded connecting holes, one end of the tensioning screw rod is propped against the other supporting plate in a tensioning state, and one end of the jacking screw rod is propped against the tensioning plate. The expansion ring is tensioned through the tensioning bolt to enable the sealing ring to be tightly attached to the inner wall surface of the pipeline, the expansion ring is enabled to be in a tensioned state, and the tensioning plate is embedded into the opening of the expansion ring, so that the construction is convenient, the expansion ring can be always in the tensioned state, meanwhile, the tensioning plate and the expansion ring form a closed circular ring to tightly press the periphery of the sealing ring and attach the sealing ring to the inner wall of the pipeline joint, the waterproof sealing effect is achieved, the tensioning screw forms a tensioning effect, the tensioning plate is embedded into the sealing ring to achieve a double tensioning effect, even if the double tensioning arrangement deforms along with the prolonging of the service life of the pipeline corridor, the displacement of the sealing ring can ensure that the sealing ring is tightly attached to the inner wall of the pipeline joint all the time, the micro-deformation and the displacement of the concrete pipeline can be well adapted, the failure cannot occur, the use safety of the pipeline corridor is guaranteed, and the service life of the pipeline is prolonged.

Furthermore, the piston ring is composed of a plurality of arc-shaped piston ring sections which are connected end to end, two adjacent arc-shaped piston ring sections are connected through flange plates, and the head end and the tail end of the arc-shaped piston ring section which is positioned at the head position and the tail position are respectively and fixedly provided with the supporting plates. The piston ring is arranged into a plurality of sections, so that the piston ring can be conveniently manufactured, transported and constructed.

Furthermore, a reinforcing rib plate is arranged between the arc-shaped expansion ring section and the corresponding supporting plate, so that the connecting strength of the supporting plate and the arc-shaped expansion ring section is improved.

Furtherly set up the installation department that this sealing washer circumference was arranged along that the bisymmetry set up on the side that sealing washer and piston ring are connected, every the installation department all includes the bellied mounting bar of two interval arrangements, two one side that the mounting bar is relative all is provided with the step, the top surface of two steps with the lateral surface laminating of piston ring is connected, two the relative side of mounting bar is laminated respectively on the lateral surface and the notch lateral wall of piston ring. The installation part is designed so that the sealing ring can be conveniently installed on the expansion ring, the two side faces and the outer peripheral face of the expansion ring can be guaranteed to be wrapped by the sealing ring, the sealing ring is fully contacted with the expansion ring in the expansion process, and the expansion ring can be guaranteed to be always pressed on the sealing ring even if the sealing ring inclines due to deformation.

Furthermore, a plurality of water stop strips arranged at intervals are arranged on the outer side surface of the sealing ring, and the water stop strips are arranged along the circumferential direction of the sealing ring. After the expansion, air sealing is formed between the two adjacent water stop strips and the inner wall surface of the pipeline, so that the waterproof sealing effect is enhanced, the micro deformation of concrete can be well adapted, and the durability of the device is prolonged.

The utility model discloses following technological effect has:

1. the utility model discloses a sealing washer and piston ring of setting in pipeline seam crossing, thereby the piston ring rises and tightly makes hugging closely on pipe inner wall after the sealing washer pressurized through the tight mechanism that rises, and then realizes waterproof sealing's purpose. Additionally, the utility model discloses a tight mechanism that rises is through setting up the backup pad in piston ring opening both sides to push away two backup pads through the tight screw rod that rises and make the piston ring rise tightly, convenient operation, and rise tight screw rod and one of them backup pad threaded connection, thereby make the piston ring rise tightly and can make the piston ring keep tight state that rises after rising, the piston ring rises tightly the back and imbeds tight board that rises in the piston ring opening, the construction of being convenient for.

2. The utility model discloses a tight board that rises forms a closed ring with the piston ring thereby all compress tightly all around the sealing washer and laminate on the inner wall of pipeline seam crossing, strengthen the water-proof effects to and the tight screw rod that rises forms a heavy tight effect that rises, the embedding of tight board that rises has the effect of two tight rises, even the setting that two tight rises takes place to warp along with the extension of piping lane life, shift also can guarantee that the sealing washer hugs closely the inner wall of pipeline seam crossing all the time, can adapt to the micro deformation of concrete well, can not take place to become invalid, guaranteed the safety in utilization of piping lane, prolong its life;

3. the installation part is arranged on the side face, which is in contact with the piston ring, of the sealing ring, so that the sealing ring can be conveniently installed on the piston ring, convenience is brought to construction, in the tensioning process, the sealing ring is fully contacted with the piston ring, the piston ring can be guaranteed to be always jacked on the sealing ring even if the sealing ring inclines due to deformation, and further the piston ring can be guaranteed to be tightly pressed on the peripheral part of the sealing ring;

4. the utility model discloses a side of sealing washer and pipeline inner wall contact sets up a plurality of prominent stagnant water strips, forms air-tight between two adjacent stagnant water strips and the pipeline internal face, strengthens waterproof sealing effect to can adapt to the micro-deformation of concrete well, prolong the device's durability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the figure:

fig. 1 is a schematic structural view of the pipe joint waterproof sealing device of the present invention;

FIG. 2 is a schematic view showing the open end structure of the piston ring of the waterproof sealing device of the present invention;

FIG. 3 is a schematic view of the tightening mechanism of the waterproof sealing device under tightening condition;

FIG. 4 is a schematic view of the tension ring of the waterproof sealing device of the present invention in a non-tensioned state;

FIG. 5 is a schematic view showing the structure of the curved ring segment of the ring of the waterproof and sealing device of the present invention;

FIG. 6 is a schematic view showing the connection relationship between the piston ring and the sealing ring of the waterproof sealing device of the present invention;

fig. 7 is a schematic view of the tension plate filled in the opening of the piston ring of the waterproof sealing device of the present invention.

The reference numbers in the figures denote the following meanings: 1. a sealing ring 2, a piston ring 3, a tensioning mechanism 4, a pipeline 5 and a reinforcing rib plate; the device comprises 11 parts, 12 parts, a water stop strip, 201 parts, an arc-shaped expansion ring section, 202 parts, a flange plate, 21 parts, a groove bottom, 22 parts, a flanging, 23 parts, a straight extending part, 301 parts, a supporting plate, 302 parts, a tensioning plate, 303 parts, a connecting plate, 304 parts, threaded connecting holes, 305 parts, a jacking screw rod, 306 parts, threaded mounting holes, 307 parts and a tensioning screw rod.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be embodied in many different forms and covered by the claims.

Example 1: the embodiment provides a waterproof sealing device for a pipeline joint, which is arranged in a pipeline and positioned at the joint of the two pipelines to perform waterproof sealing on the pipeline joint. The waterproof sealing device for the pipeline joint shown in figure 1 comprises a sealing ring 1 and a piston ring 2 with an opening, wherein the piston ring 2 compresses the sealing ring 1 through a tensioning mechanism 3 to enable the outer side surface of the sealing ring 1 to be tightly attached to the joint of two pipelines 4, so that the waterproof effect is achieved, the tensioning mechanism 3 is arranged at the opening of the piston ring 2 to enable the piston ring 2 to change in the radial direction, and therefore the outer surface of the sealing ring 1 is prevented from being tightly attached to the pipelines 4. As shown in fig. 2 and fig. 3, the tensioning mechanism 3 of this embodiment includes a supporting plate 301 and a tensioning plate 302, the two supporting plates 301 are disposed at two sides of the opening of the piston ring 2, the two supporting plates 301 are vertically disposed, the upper ends of the two supporting plates 301 are respectively fixed on the piston ring 2 by welding, and the top ends of the two supporting plates 301 are lower than the side surface of the piston ring 2 connected to the sealing ring 1, so as to ensure that the piston ring 2 and the sealing ring 1 are in full contact, so that the sealing ring 1 can be compressed tightly in a tensioning state, and the two supporting plates 301 of this embodiment both keep a certain distance from the end surface of the opening of the piston ring 2, so as to embed the tensioning plate 302 in the opening. The two opposite side surfaces of the two supporting plates 301 are respectively fixed with a connecting plate 303 which is transversely arranged, the two connecting plates 303 are respectively provided with a threaded connecting hole 304 which is vertically arranged, a jacking screw 305 is installed in the connecting hole 304 in an adaptive mode, the tensioning plate 302 is tightly pressed by screwing the jacking screw 305, so that the expansion ring 2 is always kept in a tensioning state, meanwhile, the tensioning plate 302 and the expansion ring 2 form a closed ring, so that the outer side surface of the sealing ring 1 is circumferentially and tightly attached to the inner wall surface of the pipeline 2, and the waterproof sealing effect is ensured. As shown in fig. 4, the two connecting plates 303 are arranged in a staggered manner up and down, so that the two connecting plates 303 are connected by connecting bolts in a non-tensioned state (initial state), and the connecting bolts sequentially pass through threaded mounting holes 304 formed in the two connecting plates 303, so that the piston ring 2 is convenient to mount during construction, and the piston ring 2 and the tensioning plate 302 are made of special steel materials, such as 3Cr13; the tensioning plate 302 is embedded into the opening of the piston ring 2 so that the piston ring 2 presses the sealing ring 1.

As shown in fig. 2 and 4, a horizontally arranged threaded mounting hole 306 is formed in one of the support plates 301, the axis of the threaded mounting hole 306 and the axis of the two threaded connection holes 304 are respectively located in different vertical planes, so as to prevent interference between a tension screw 307 installed in the threaded mounting hole 306 and a tightening screw 305 installed in the threaded connection hole 304, in a tensioned state, one end of the tension screw 307 is pressed against the support plate 301 which is oppositely arranged, the upper ends of the two tightening screws 305 are pressed against the tension plate 302, the tension ring 2 is pressed towards the inner wall surface of the pipeline 4 by rotating the tension screw 307, so that the seal ring 1 is tightly pressed against the joint of the two pipelines 4, the joint of the pipelines is sealed, when the tension screw 307 is rotated to be stationary, the tension plate 302 is filled into the opening of the tension ring 2 from the side surface, and the tightening of the tightening screw 305 makes the upper end surfaces of the two tightening screws 305 tightly press against the tension plate 302, so that the outer surface of the tension plate 302 and the outer surface of the tension ring 2 are located on the same circumferential surface. Under the effect of the jacking screw 305, the piston ring 2 can be always in a tension state, the tension plate 302 is arranged to further ensure the tension effect of the piston ring 2, and through the dual tension design, even if the pipe gallery slightly displaces along with the prolonging of the service life, the piston ring 2 can be always in the tension state, so that the durability of waterproof sealing is improved. The tension plate 302 is arc-shaped, the length of the tension plate is equal to the length of the opening of the tension ring 2 after tension, when the tension plate is used, the tension screw 307 is rotated until the tension screw is fixed, the tension ring 2 is in a tension state at the moment, the length of the opening is measured, a section of the tension plate 302 with the chord length equal to the length of the opening is cut, and the cross section shape and the size of the tension plate 302 are consistent with those of the section steel for manufacturing the tension ring 2.

As shown in fig. 5, the piston ring 2 of this embodiment is composed of a plurality of end-to-end arc-shaped piston ring segments 201, two adjacent arc-shaped piston ring segments 201 are connected by a flange plate 202, the head end and the tail end of the first and last arc-shaped piston ring segments 201 are respectively and fixedly provided with a support plate 301, and in order to improve the connection strength between the support plate 301 and the corresponding arc-shaped piston ring segments 201, a reinforcing rib plate 5 is arranged between the arc-shaped piston ring segments 201 and the corresponding support plate 301. The arc-shaped ring expanding section 201 is formed by rolling profile steel with a dovetail-shaped cross section, and the sealing ring 1 is arranged at the opening end of the arc-shaped ring expanding section 201. The cross section design of piston ring 2 is the dovetail groove form, namely, two turn-ups 22 are symmetrically arranged on both sides of groove bottom 21, two turn-ups 22 respectively and straightly extend to the notch inboard and form straight extension portion 23, be the notch between two straight extension portions 23, improve piston ring 2 intensity and load capacity, and the side that sealing washer 1 was kept away from to straight extension portion 23 inclines to groove bottom 21 by the inboard notch direction of turn-ups 21 gradually, improve the intensity of straight extension portion 21, and the intensity at the notch border of two straight extension portions 23 has been improved, guarantee that the border position of two straight extension portions 23 has sufficient intensity at the tight in-process that rises, thereby guarantee that sealing washer 1 lateral surface and pipeline 4 internal face closely laminate.

As shown in fig. 6, two pairs of installation portions 11 are disposed on the connection surface of the sealing ring 1 and the piston ring 2, the two installation portions 11 are disposed along the circumferential direction of the sealing ring, the installation portions 11 include two protruded installation strips which are disposed at intervals, the side surfaces of the two installation strips close to each other are both provided with steps which are lower than the installation strips, the steps and the opposite side surfaces of the two installation strips form installation grooves, when in use, the top surfaces of the two steps of the straight extension portion 23 of the piston ring 2 are on, the opposite side surfaces of the two installation strips are respectively attached to the outer side surface and the side wall of the notch of the piston ring 2, so that the sealing ring 1 can be conveniently installed on the piston ring 2, meanwhile, the sealing ring 1 can be ensured to be fully contacted with the piston ring 2, and the sealing ring 1 is ensured to be attached to the piston ring 2 all the time in the tensioning process, in this embodiment, the sealing ring 1 is adhered to the piston ring 2. The side face, attached to the inner wall face of the pipeline 4, of the sealing ring 1 is provided with the plurality of water stop strips 12 which are arranged at intervals, the water stop strips 12 are arranged along the circumferential direction of the sealing ring 1, after the sealing ring is tensioned, the adjacent water stop strips 12 and the inner wall face of the pipeline 4 form air sealing, a plurality of air sealing are formed between the sealing ring 1 and the inner wall face of the pipeline 4 after the sealing ring is tensioned, and the waterproof sealing effect is improved.

Example 2: referring to fig. 7, the structure of the present embodiment is substantially the same as that of embodiment 1, and similarly, the pipe joint waterproof sealing device of the present embodiment includes a piston ring 2, and a seal ring 1 disposed between the inner wall surface of the pipe and the piston ring 2, and the structures of the piston ring 2 and the seal ring 1 are the same as those of embodiment 1, except for the position of a support plate 301 on the piston ring 2, and the opposite side surfaces of the two support plates 301 of the present embodiment are flush with the end surfaces of the respective corresponding openings. When the sealing device is used, the tension plate 302 is filled between the two support plates 302 from the side, and the jacking screw rods 305 respectively and tightly mounted on the connecting plate 303 enable the outer side surface of the tension plate 302 and the outer side surface of the piston ring 2 to be located on the same circumferential surface, so that the sealing ring completely seals a gap at the joint of the two sections of pipelines 4, and the purpose of waterproof sealing is achieved.

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

1. A waterproof sealing device for a pipeline joint comprises a sealing ring and a piston ring with an opening, wherein the piston ring presses the sealing ring through a tensioning mechanism to enable the outer side surface of the sealing ring to be tightly attached to the joint of the pipeline, the tensioning mechanism is arranged at the opening of the piston ring, and the waterproof sealing device is characterized in that the tensioning mechanism comprises two vertically arranged supporting plates and a tensioning plate, the two vertically arranged supporting plates are oppositely arranged on two sides of the opening of the piston ring, the tensioning plate is embedded in the opening of the piston ring, the upper ends of the two supporting plates are respectively fixed on the piston ring, transversely arranged connecting plates are respectively fixed on the opposite sides of the two supporting plates, vertically arranged threaded connecting holes are respectively formed in the two connecting plates, and the two connecting plates are vertically and alternately arranged to enable the two connecting plates to be connected through connecting screws sequentially penetrating through the two threaded connecting holes in a non-tensioning state;

the supporting plates are provided with thread mounting holes which are horizontally arranged, the axis of each thread mounting hole and the axis of each thread connecting hole are respectively positioned in different vertical planes so as to prevent interference between a tensioning screw rod installed in each thread mounting hole and a jacking screw rod installed in each thread connecting hole, one end of each tensioning screw rod is propped against the other corresponding supporting plate in a tensioning state, and one end of each jacking screw rod is propped against the corresponding tensioning plate.

2. The waterproof sealing device for pipe joints according to claim 1, wherein said expanding ring is composed of a plurality of arc expanding ring segments connected end to end, two adjacent arc expanding ring segments are connected by flange plates, and the head end and the tail end of the arc expanding ring segment at the head position and the tail position are respectively fixedly provided with said supporting plates.

3. The waterproof sealing device for pipe joints according to claim 2, wherein reinforcing ribs are arranged between the arc-shaped expanding ring sections and the corresponding support plates.

4. The waterproof sealing device for pipe joints according to claim 1 or 2, wherein the piston ring is a section steel having a dovetail groove shape in cross section, and the sealing ring is disposed at an open end of the piston ring.

5. The waterproof sealing device for the pipeline joint according to claim 4, wherein two symmetrically arranged installation parts are arranged on the side surface of the sealing ring connected with the piston ring and circumferentially arranged along the sealing ring, each installation part comprises two raised installation strips arranged at intervals, steps are arranged on the opposite sides of the two installation strips, the top surfaces of the two steps are attached to the outer side surface of the piston ring, and the opposite side surfaces of the two installation strips are respectively attached to the outer side surface of the piston ring and the side wall of the notch.

6. The waterproof sealing device for the pipeline joint according to claim 5, wherein a plurality of water stop strips arranged at intervals are arranged on the outer side surface of the sealing ring, and the water stop strips are arranged along the circumferential direction of the sealing ring.