CN219825170U

CN219825170U - Skirt sleeve

Info

Publication number: CN219825170U
Application number: CN202320894838.4U
Authority: CN
Inventors: 张春翔; 宋放; 张祎; 宋至美
Original assignee: Liaoning Futai Chemical Machinery Co ltd
Current assignee: Liaoning Futai Chemical Machinery Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-10-13
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a skirt sleeve, which comprises an outer sleeve, wherein a first connecting mechanism is fixedly arranged on the side wall of an inner cavity of the outer sleeve, a mud scraper is fixedly arranged on the outer sleeve through the first connecting mechanism, and a passive packer and a diaphragm are respectively fixedly arranged on the upper side and the lower side of the mud scraper on the side wall of the inner cavity of the outer sleeve. The mud scraper is supported by the first fixing flange and the second fixing flange in the first connecting mechanism, the integral strength of the mud scraper is enhanced, the stress deformation of the mud scraper in the assembly process is avoided, the matching butt joint between the external sleeve and the steel pile is convenient, the installation difficulty is reduced, the mud scraper is redesigned, the mud scraper is divided into the connecting part and the fixing part, and the inclination angle of the fixing part is adjusted, so that the mud scraper is set at different inclination angles in different use environments, the mud scraper has higher strength, and the assembly requirements of seafloor with different depths are met.

Description

Skirt sleeve

Technical Field

The utility model relates to the technical field of seabed support pile frames, in particular to a skirt sleeve.

Background

The skirt sleeve is applied to an offshore platform, supports and fixes the offshore platform and meets the buoyancy requirement in the installation process of the offshore platform. The current skirt sleeve is fixed to the seabed at the process of using after the outside sleeve is fixed to the seabed, insert the steel pile into the sleeve, and consolidate the operation through filling concrete to the connection of steel pile and outside sleeve, be provided with in the outside sleeve and scrape mud ware and block that the mud on seabed is poured into the airtight space of outside sleeve in the back, thereby the filling to follow-up concrete mortar leads to the fact the influence, and current scraper majority adopts fixing bolt directly to be connected fixedly between sleeve, lead to the scraper atress deformation very easily at its in-process of assembling, lead to the damage to the scraper, and then need maintenance many times, the rework influences the installation effectiveness to the scraper. To this end we propose a skirt sleeve.

Disclosure of Invention

The present utility model is directed to a skirt sleeve, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the skirt sleeve comprises an outer sleeve, wherein a first connecting mechanism is fixedly arranged on the side wall of an inner cavity of the outer sleeve, a mud scraper is fixedly arranged on the outer sleeve through the first connecting mechanism, and a passive packer and a diaphragm are fixedly arranged on the upper side and the lower side of the mud scraper respectively;

the mud scraper comprises a connecting part and a fixing part, wherein the connecting part and the fixing part are integrally formed, the fixing part is inclined downwards, and the inclination angle of the fixing part is between 0 and 45 degrees.

Preferably, the first connecting mechanism comprises a first fixing flange, the first fixing flange is fixedly connected with the inner cavity side wall of the outer sleeve, the top of the first fixing flange is fixedly connected with a second fixing flange through a first fixing bolt, and the mud scraper is located between the first fixing flange and the second fixing flange.

Preferably, a rubber layer is arranged between the side wall of the mud scraper and the side wall of the inner cavity of the outer sleeve.

Preferably, the top of the inner side end of the fixing part is provided with an inclined chamfer angle of 45 degrees.

Preferably, the membrane is horizontal.

Preferably, the diaphragm is in an upwardly inclined arc shape.

Preferably, the diaphragm comprises a water permeable layer, a mud blocking layer and a reinforcing layer, wherein the water permeable layer, the mud blocking layer and the reinforcing layer are sequentially distributed from bottom to top, and a steel ring is embedded and installed in the edge part of the diaphragm.

Preferably, a second connecting mechanism is arranged between the outer sleeve and the diaphragm, the second connecting mechanism comprises a third fixing flange, the third fixing flange is fixedly connected with the outer sleeve, a fourth fixing flange is fixedly connected with the third fixing flange through a second fixing bolt, and the diaphragm is assembled and fixed between the third fixing flange and the fourth fixing flange.

Preferably, the inner cavity side wall of the outer sleeve is fixedly connected with a fixed block, the side wall of the fixed block is fixedly provided with a pressing plate through a third fixed bolt, the passive packer is fixed between the outer sleeve and the pressing plate, a cushion block is arranged between the passive packer and the outer sleeve, and the top of the passive packer is inclined at 45 degrees with the vertical direction.

Compared with the prior art, the utility model has the beneficial effects that: the skirt sleeve comprises a skirt sleeve body, wherein a mud scraper in an outer sleeve body is fixedly assembled through a first connecting mechanism, the mud scraper is supported through a first fixing flange and a second fixing flange in the first connecting mechanism, the integral strength of the mud scraper is enhanced, the stressed deformation of the mud scraper in the assembling process is avoided, the matching butt joint between the outer sleeve body and a steel pile is facilitated, and the installation difficulty is reduced;

the mud scraper is redesigned, the mud scraper is divided into a connecting part and a fixing part, and the setting of different inclination angles of the mud scraper is carried out in different use environments by adjusting the inclination angle of the fixing part, so that the mud scraper has higher strength and meets the assembly requirements of seafloors with different depths;

the diaphragm in the external sleeve is improved, the diaphragm can be adjusted in a certain shape according to the assembled seabed depths, and the pressure bearing capacity of the diaphragm is further improved by arranging the diaphragm to be of an arc-shaped structure, so that the diaphragm can meet the use environments of seabed with different depths.

Drawings

FIG. 1 is a schematic view of a diaphragm of the present utility model in a horizontal configuration.

FIG. 2 is a schematic view of a diaphragm of the present utility model in an arc configuration.

Fig. 3 is a detail view at a in fig. 1.

Fig. 4 is a detail view at b in fig. 2.

Fig. 5 is a schematic structural view of the horizontal separator of the present utility model.

FIG. 6 is a schematic view of the structure of the arcuate diaphragm of the present utility model.

In the figure: 1. the outer sleeve, 2, the jacket, 3, the first coupling mechanism, 31, the first fixed flange, 32, the first fixed bolt, 33, the second fixed flange, 34, the rubber layer, 4, the mud scraper, 41, the connecting part, 42, the fixed part, 5, the diaphragm, 51, the permeable layer, 52, the mud blocking layer, 53, the reinforcing layer, 54, the steel ring, 6, the passive packer, 7, the second coupling mechanism, 71, the third fixed flange, 72, the second fixed bolt, 73, the fourth fixed flange, 8, the fixed block, 9, the third fixed bolt, 10, the pressing plate, 11 and the cushion.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a skirt sleeve, includes outside sleeve 1, and the inner chamber grafting of outside sleeve 1 has the steel pile 2 that cooperatees and use with it, is equipped with mud scraper 4 through first coupling mechanism 3 fixed mounting at outside sleeve 1's inner chamber lateral wall, and mud scraper 4 is the seal structure who is located the below of diaphragm 5, and the mud is blocked to the resilience force that produces when compressing through mud scraper 4, prevents that mud from reversely irritating to the inside enclosure space of outside sleeve 1 of passive packer 6 top in, if mud enters into the enclosure space in outside sleeve 1 and can influence follow-up grouting operation, leads to the stability of grout to descend.

As shown in fig. 2, the first connection mechanism 3 includes a first fixing flange 31, the first fixing flange 31 is welded and fixed on the inner cavity side wall of the outer sleeve 1, a second fixing flange 33 is fixedly assembled on the top of the first fixing flange 31 through a first fixing bolt 32, the mud scraper 4 is located between the first fixing flange 31 and the second fixing flange 33, the mud scraper 4 is fixed through the fixed connection between the second fixing flange 33 and the first fixing flange 31, in order to further strengthen the sealing effect between the mud scraper 4 and the inner cavity side wall of the outer sleeve 1, leakage of mud at the connection position of the second fixing flange 33 and the first fixing bolt 32 is avoided, a rubber layer 34 is sleeved on the outer side wall of the mud scraper 4, the rubber layer 34 is located between the mud scraper 4 and the inner side wall of the outer sleeve 1, the rubber layer 34 is water swelling rubber, the sealing effect between the mud scraper 4 and the inner wall of the outer sleeve 1 is further strengthened after the rubber layer 34 swells when water is swelled, and subsequent work is facilitated.

In the prior art, most of the mud scraping pieces and the sleeve are fixed by adopting a direct-connection bolt, screw holes for bolt fixation are required to be uniformly formed in the side walls of the mud scraping pieces and the sleeve, the process of punching holes is complicated, and the screw holes are inconvenient to position.

As shown in fig. 3, the mud scraper 4 includes a connecting portion 41 and a fixing portion 42, the connecting portion 42 is used for being fixedly connected with the first fixing flange 31 and the second fixing flange 33, the connecting portion 41 and the fixing portion 42 are integrally formed, the connecting portion 41 and the fixing portion 42 are annular, the fixing portion 42 is inclined downwards from the horizontal plane, the inclination angle is between 0 ° and 45 °, by arranging the fixing portion 42 with the inclination angle, the stress of the whole mud scraper 4 in the vertical direction can be reduced, the mud scraper is convenient to adapt to submarine working environments with different depths, the mud blocking performance is improved, the inner ring top of the fixing portion 42 is provided with a chamfer angle of 45 °, and the installation of the mud scraper 4 is facilitated by chamfering the inner side end surface of the fixing portion 42.

The diaphragm 5 is assembled and fixed with the outer sleeve 1 through the second connecting mechanism 7, the second connecting mechanism 7 comprises a third fixing flange 71, the third fixing flange 71 is welded and fixed with the outer sleeve 1, the third fixing flange 71 is fixedly connected with a fourth fixing flange 73 through a second fixing bolt 72, the diaphragm 5 is assembled between the third fixing flange 71 and the fourth fixing flange 73, and the diaphragm 5 is fixed through the third fixing flange 71 and the fourth fixing flange 73.

As shown in fig. 1 and 3, the diaphragm 5 is horizontally arranged or arc-shaped, the diaphragm 5 is arranged at different angles according to the difference of the seabed depth of the assembled environment, when the working environment is shallow sea, the diaphragm 5 horizontally arranged can be fully suitable for bearing force of shallow sea work, when the working environment is deep sea, the stress is analyzed and calculated according to a computer, so that the arc-shaped projection angle of the middle part of the diaphragm 5 is determined, the diaphragm 5 is arranged into an arc shape, the stress on the vertical direction can be reduced, the bearing force of the diaphragm 5 is enhanced, and the diaphragm is suitable for harder use environments.

As shown in fig. 5 and 6, the membrane 5 is composed of a permeable layer 51, a mud-blocking layer 52 and a reinforcing layer 53, the permeable layer 51, the mud-blocking layer 52 and the reinforcing layer 53 are sequentially distributed from bottom to top, the permeable layer 51 can adopt a filter screen with smaller pore diameter for water to pass through, the mud-blocking layer 52 is spliced by adopting a plurality of filter screens with smaller pore diameter than the permeable layer 51, blocking of mud is ensured, and the reinforcing layer 53 is woven by adopting a steel wire mesh.

Through setting up permeable layer 51, hinder mud layer 52 and enhancement layer 53 mutually supporting, both can guarantee that the sea water passes diaphragm 5, reduce the water pressure that is located diaphragm 5 below, can separate the mud on the seabed again, avoid mud to flow backward to the inner chamber of outside sleeve 1, influence follow-up grouting work, set up enhancement layer 53 and improve diaphragm 5's overall rigidity, guarantee that diaphragm 5 can bear certain pressure at the in-process of accomplishing permeable water, blocking mud, have longer life.

As shown in fig. 5 and 6, a steel ring 54 is embedded and installed in the edge portion of the diaphragm 5, the overall strength of the diaphragm 5 is further enhanced by providing the steel ring 54, and the strength of the edge portion of the diaphragm 5 is also enhanced, so that the connection between the diaphragm 5 and the second connection mechanism 7 is more stable.

As shown in fig. 4, the passive packer 6 is fixed on the inner cavity side wall of the outer sleeve 1 through the cooperation of the fixing block 8 and the pressing plate 10, the fixing block 8 is fixed on the inner cavity side wall of the outer sleeve 1 in an annular welding manner, the pressing plate 10 is a plurality of pressing plates 10 which are uniformly distributed in circumference at the center of the circle of the fixing block 8, the pressing plate 10 is fixedly connected with the fixing block 8 through the third fixing bolt 9, compared with the traditional fixing mode of the passive packer 6, the fixing mode of the passive packer 6 is not required to be fixed by a fixing frame with complex processing shape, the fixing assembly of the passive packer 6 can be completed only by setting the uniformly distributed pressing plates 10, the processing mode of the pressing plate 10 is simple and convenient to install, the installation efficiency of the passive packer 6 is improved, meanwhile, a cushion block 11 matched with the pressing plate 10 is arranged between the passive packer 6 and the inner wall of the outer sleeve 1, the cushion block 11 is annular, and the fixing effect of the pressing plate 10 on the passive packer 6 is enhanced by setting the cushion block 11.

The top of the passive packer 6 is designed to be inclined at 45 degrees with the vertical direction, the working butt joint surface of the passive packer 6 is enlarged, the steel pile 2 is conveniently inserted into the passive packer 6, concrete mortar is injected into the outer sleeve 1 after the steel pile 2 and the passive packer 6 are in butt joint, and the connection and fixation of the outer sleeve 1 and the steel pile 2 are completed.

Claims

1. Skirt sleeve, comprising an outer sleeve (1), characterized in that: the inner cavity side wall of the outer sleeve (1) is fixedly provided with a first connecting mechanism (3), the outer sleeve (1) is fixedly provided with a mud scraper (4) through the first connecting mechanism (3), and the upper side and the lower side of the inner cavity side wall of the outer sleeve (1) which are positioned on the mud scraper (4) are respectively fixedly provided with a passive packer (6) and a diaphragm (5);

the mud scraper (4) comprises a connecting part (41) and a fixing part (42), wherein the connecting part (41) and the fixing part (42) are integrally formed, the fixing part (42) is inclined downwards, and the inclination angle of the fixing part (42) is between 0 and 45 degrees.

2. A skirt sleeve according to claim 1, wherein: the first connecting mechanism (3) comprises a first fixing flange (31), the first fixing flange (31) is fixedly connected with the inner cavity side wall of the outer sleeve (1), the top of the first fixing flange (31) is fixedly connected with a second fixing flange (33) through a first fixing bolt (32), and the mud scraper (4) is located between the first fixing flange (31) and the second fixing flange (33).

3. A skirt sleeve according to claim 2, wherein: a rubber layer (34) is arranged between the side wall of the mud scraper (4) and the side wall of the inner cavity of the outer sleeve (1).

4. A skirt sleeve according to claim 1, wherein: the top of the inner side end of the fixing part (42) is provided with an inclined chamfer angle of 45 degrees.

5. A skirt sleeve according to claim 1, wherein: the diaphragm (5) is horizontal.

6. A skirt sleeve according to claim 1, wherein: the diaphragm (5) is in an upward inclined arc shape.

7. A skirt sleeve according to claim 1, wherein: the diaphragm (5) comprises a water permeable layer (51), a mud blocking layer (52) and a reinforcing layer (53), wherein the water permeable layer (51), the mud blocking layer (52) and the reinforcing layer (53) are sequentially distributed from bottom to top, and a steel ring (54) is embedded and installed in the edge of the diaphragm (5).

8. A skirt sleeve according to claim 1, wherein: the novel diaphragm is characterized in that a second connecting mechanism (7) is assembled between the outer sleeve (1) and the diaphragm (5), the second connecting mechanism (7) comprises a third fixing flange (71), the third fixing flange (71) is fixedly connected with the outer sleeve (1), the third fixing flange (71) is fixedly connected with a fourth fixing flange (73) through a second fixing bolt (72), and the diaphragm (5) is assembled and fixed between the third fixing flange (71) and the fourth fixing flange (73).

9. A skirt sleeve according to claim 1, wherein: the inner cavity side wall fixedly connected with fixed block (8) of outside sleeve (1), the lateral wall of fixed block (8) is equipped with clamp plate (10) through third fixing bolt (9) fixed mounting, passive packer (6) are fixed in between outside sleeve (1) and clamp plate (10), be provided with cushion (11) between passive packer (6) and outside sleeve (1), the top of passive packer (6) is 45 slope with the vertical direction.