CN220037787U - Telescopic pipe fitting for switching slurry pipeline of shield tunneling machine - Google Patents

Abstract

The utility model relates to the technical field of underground engineering tunnel construction and discloses a telescopic pipe fitting for transferring a slurry pipeline of a shield tunneling machine, which comprises a telescopic pipe body, a first limiting ring and a hoop, wherein the other end of the telescopic pipe body is provided with a mounting sleeve, a second connecting pipe connected with the telescopic pipe body is inserted into the mounting sleeve, the peripheral wall of the first limiting ring is fixedly connected with the inner peripheral wall of the mounting sleeve, the end part of the second connecting pipe is abutted against the end surface of the first limiting ring, and the hoop is in sealing connection with the joint of the second connecting pipe and the mounting sleeve. This a flexible pipe fitting for shield constructs quick-witted change mud pipeline switching is through pegging graft the one end of second connecting pipe to the installation sleeve pipe in until its tip and first spacing ring looks butt, locates second connecting pipe and installation sleeve's junction with the staple bolt immediately, can realize the banding because of the connected mode of staple bolt only need install two bolts, can improve the installation and removal efficiency of second connecting pipe and flexible pipe body greatly in the connection of first ring flange.

Description

Telescopic pipe fitting for switching slurry pipeline of shield tunneling machine

Technical Field

The utility model relates to the technical field of underground engineering tunnel construction, in particular to a telescopic pipe fitting for transferring a slurry pipeline of a shield tunneling machine.

Background

In the whole machine assembly process of the large slurry shield machine, the length of the whole machine can reach more than 150 meters after the whole machine is installed, and the length of a site foundation pit can reach an originating condition only by meeting 200 meters when the requirements of a post-matching and auxiliary well head construction are met. Because the time node of the construction project is compact, the shield tunneling machine is generally split and started according to the site requirement.

The deslagging mode of the slurry shield machine is to replace high specific gravity slurry by inputting low specific gravity slurry through a connected pipeline and a slurry pump to realize the pushing of the shield, in conclusion, the slurry shield machine can only be carried and installed in batches during the whole machine assembly due to the huge volume of the shield machine, and a large amount of time is consumed during the pipeline installation due to the fact that the flange and bolt connection mode is adopted for the connection between pipelines installed in the shield machine.

Therefore, there is a need to design a new telescopic pipe for transferring slurry pipeline of shield tunneling machine to improve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a telescopic pipe fitting for transferring a slurry pipeline of a shield machine, which aims to solve the problem that a large amount of time is consumed in installing the pipeline because a flange plate and a bolt are mostly adopted for connecting pipelines in the shield machine.

To achieve the purpose, the utility model adopts the following technical scheme:

a flexible pipe fitting for shield constructs quick-witted change mud pipeline switching, include:

the telescopic pipe comprises a telescopic pipe body, a first connecting pipe and a second connecting pipe, wherein a first flange is arranged at one end of the telescopic pipe body, the first flange is connected with the first connecting pipe, a mounting sleeve is arranged at the other end of the telescopic pipe body, and a second connecting pipe connected with the telescopic pipe body is inserted into the mounting sleeve;

the outer peripheral wall of the first limiting ring is fixedly connected with the inner peripheral wall of the mounting sleeve, and the end part of the second connecting pipe is abutted against the end surface of the first limiting ring; and

and the anchor ear is connected with the joint of the second connecting pipe and the mounting sleeve in a sealing way.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, a second limiting ring is arranged on the peripheral wall of the second connecting pipe, an outer edge is arranged at one end, far away from the telescopic pipe body, of the mounting sleeve, and the second limiting ring is abutted to the outer edge of the mounting sleeve.

As a preferred scheme for the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the anchor ear comprises:

the first half hoop piece and the second half hoop piece, first half hoop piece with the intrados hoop of second half hoop piece is located the second connecting pipe with installation sheathed tube junction, and buckle and form the cladding the second spacing ring with the structure of buckling of outer edge, the both ends of first half hoop piece with the both ends one-to-one of second half hoop piece is connected.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the end parts of the first half hoop sheet and the second half hoop sheet are bent to form an ear plate, and the ear plate of the first half hoop sheet is fixedly connected with the ear plate of the second half hoop sheet through bolts.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the second limiting ring and the outer side of the outer edge are sleeved with sealing rings, and the inner cambered surfaces of the first half hoop sheet and the second half hoop sheet are provided with sealing grooves for accommodating the sealing rings.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the telescopic pipe body comprises:

an outer tube, one end of which is connected with the mounting sleeve;

one end of the inner pipe is inserted into the outer pipe, and the other end of the inner pipe is connected with the first flange plate; and

and the end part of the driving device is connected with the outer peripheral wall of the outer tube, the output end of the driving device is connected with the outer peripheral wall of the inner tube, and the driving device is parallel to the axial directions of the inner tube and the outer tube and is configured to realize the expansion and the contraction of the inner tube in the outer tube.

As a preferable scheme of the telescopic pipe fitting for switching the slurry pipeline of the shield tunneling machine, the driving device comprises:

the oil cylinders are at least provided with two, the end parts of the two oil cylinders are connected with the outer peripheral wall of the outer tube, and the output end of each oil cylinder is connected with the outer peripheral wall of the inner tube.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the telescopic pipe fitting further comprises:

the sealing tube is arranged at one end of the outer tube away from the mounting sleeve, the inner peripheral wall of the sealing tube is tightly attached to the outer peripheral wall of the inner tube, and a gap is reserved between the inner peripheral wall of the outer tube and the outer peripheral wall of the inner tube.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the outer circumferential wall of the outer pipe is provided with a lubrication port communicated with the inner part of the outer pipe.

As a preferable scheme of the telescopic pipe fitting for the transfer of the slurry pipeline of the shield tunneling machine, the inner pipe is provided with a contracted state and an extended state, when the inner pipe is in the contracted state, one end of the inner pipe is abutted to the first limiting ring, and when the outer pipe is in the extended state, one end of the inner pipe is always positioned in the outer pipe.

The utility model has the beneficial effects that:

according to the telescopic pipe fitting for the slurry transferring pipeline transfer of the shield machine, one end of the first connecting pipe is provided with the flange plate and is connected with the first flange plate of the telescopic pipe body through the bolts, so that the sealing connection of the first flange plate and the telescopic pipe body is realized; through pegging graft the one end of second connecting pipe to the installation sleeve pipe in until its tip and first spacing ring looks butt, locate second connecting pipe and installation sleeve pipe's junction with the staple bolt immediately, can realize the banding because of the connected mode of staple bolt only need install two bolts, compare in the connection of ring flange can improve the installation and removal efficiency of second connecting pipe and flexible pipe body greatly, saved installation time.

Drawings

FIG. 1 is a schematic cross-sectional view of a telescopic tube body in a contracted state according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a telescopic tube body in an extended state according to an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

In the figure:

1. a telescopic tube body; 11. an outer tube; 111. installing a sleeve; 1111. a first stop collar; 1112. an outer edge; 112. a lubrication port; 12. an inner tube; 121. a first flange; 13. sealing the tube; 14. an oil cylinder;

2. a hoop; 21. a first half cuff sheet; 23. ear plates; 24. sealing grooves;

3. a first connection pipe;

4. a second connection pipe; 41. a second limiting ring;

5. and (3) a sealing ring.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-2, the present embodiment provides a telescopic pipe for transferring slurry from a shield tunneling machine, which includes a telescopic pipe body 1, specifically, the telescopic pipe body 1 includes an outer pipe 11, an inner pipe 12, a sealing pipe 13, and a driving device, one end of the outer pipe 11 is fixedly connected with one end of the sealing pipe 13 through a flange, and one end of the inner pipe 12 extends into and extends into the outer pipe 11 from one end of the sealing pipe 13 far from the outer pipe 11. The end of the driving means is connected to the outer peripheral wall of the outer tube 11, the output end of the driving means is connected to the outer peripheral wall of the inner tube 12, and the driving means is parallel to the axial direction of the inner tube 12 and the outer tube 11 and is configured to achieve telescoping of the inner tube 12 within the outer tube 11.

The driving device is two cylinders 14, the ends of the two cylinders 14 are connected with the outer peripheral wall of the outer tube 11, the output end of the cylinder 14 is connected with the outer peripheral wall of the inner tube 12, the two cylinders 14 are respectively arranged on the peripheral side of the telescopic tube body 1, the axial directions of the two cylinders 14 and the axial direction of the telescopic tube body 1 are on the same plane, the stable pushing of the cylinders 14 can be ensured, and the cylinders 14 have the advantages of high output power, convenience in use, good stability and the like. The inner tube 12 is driven to move in the outer tube 11 by starting the oil cylinder 14 to stretch, so that the telescopic tube body 1 stretches out and draws back, further, the inner tube 12 is in a contracted state and an extended state, when the inner tube 12 is in the contracted state, one end of the inner tube 12 is abutted to the first limiting ring 1111, and when the outer tube 11 is in the extended state, one end of the inner tube 12 is always located in the outer tube 11, so that one end of the inner tube 12 is always located in the outer tube 11, the situation that the inner tube 12 and the outer tube 11 are separated is avoided, and the integrity of the telescopic tube body 1 is higher.

In addition, the outer peripheral wall of the inner tube 12 is closely attached to the inner peripheral wall of the sealing tube 13, a gap is formed between the outer peripheral wall of the inner tube 12 and the inner peripheral wall of the outer tube 11, a lubrication port 112 communicated with the inside of the outer tube is formed in the outer peripheral wall of the outer tube 11, lubricating oil can be injected into the gap between the outer tube 11 and the inner tube 12 through the lubrication port 112, the inner tube 12 stretches and contracts in the outer tube 11 and the sealing tube 13 more smoothly, and a sealing pin (not shown in the figure) is sealed and blocked in the inner portion of the lubrication port 112 when the telescopic tube is not used, so that the tightness of the telescopic tube body 1 is ensured.

The existing shield machine has huge volume, and can only be carried and installed in batches when the whole machine is assembled, and a large amount of time is consumed when the pipelines are installed because the pipelines installed inside the shield machine are connected in a mode of connecting the flange plates with bolts.

In order to solve the above problems, as shown in fig. 1 to 3, the telescopic pipe for transferring slurry from a shield tunneling machine according to the present embodiment further includes a first flange 121, a mounting sleeve 111, a first limiting ring 1111, and a hoop 2, where one end of the inner pipe 12 far away from the outer pipe 11 is fixedly connected with the first flange 121, and the flange is mounted on one end of the first connecting pipe 3 and is connected with the first flange 121 of the telescopic pipe body 1 through a plurality of bolts, so as to realize sealing connection between the two. In addition, be connected with first connecting pipe 3 on the first ring flange 121, the one end fixedly connected with installation sleeve 111 that inner tube 12 was kept away from to outer tube 11, the inner peripheral wall of installation sleeve 111 and the outer peripheral wall fixed connection of first spacing ring 1111, the second connecting pipe 4 that links to each other with outer tube 11 has been inserted in the installation sleeve 111, the tip butt of second connecting pipe 4 is in the terminal surface of first spacing ring 1111, staple bolt 2 sealing connection is in the junction of second connecting pipe 4 and installation sleeve 111. It can be understood that, through inserting one end of the second connecting pipe 4 into the mounting sleeve 111 until the end of the second connecting pipe abuts against the first limiting ring 1111, the hoop 2 is immediately arranged at the joint of the second connecting pipe 4 and the mounting sleeve 111, and the hooping can be realized only by installing two bolts due to the connection mode of the hoop 2, so that the mounting and dismounting efficiency of the second connecting pipe 4 and the telescopic pipe body 1 can be greatly improved compared with the connection mode of a flange plate, and the mounting time is saved. The first connecting pipe 3 and the second connecting pipe 4 are pipelines inside the shield tunneling machine.

Further, as shown in fig. 2 to 3, a second limiting ring 41 is provided on the outer peripheral wall of the second connecting tube 4, an outer edge 1112 is provided at one end of the mounting sleeve 111 away from the telescopic tube body 1, and the second limiting ring 41 abuts against the outer edge 1112 of the mounting sleeve 111. When one end of the second connecting pipe 4 is inserted into the mounting sleeve 111 and the end part of the second connecting pipe 4 is abutted against the first limiting ring 1111, the second limiting ring 41 of the second connecting pipe 4 is abutted against the outer edge 1112, and the tight fitting between the second connecting pipe 4 and the first limiting ring 1111 and the tight fitting between the second limiting ring 41 and the outer edge 1112 are achieved, so that on one hand, the connection tightness is improved, and on the other hand, an operator can intuitively observe whether the second connecting pipe 4 is mounted in place or not, and the mounting is facilitated.

Specifically, as shown in fig. 3, the anchor ear 2 includes a first half hoop sheet 21 and a second half hoop sheet, the intrados hoops of the first half hoop sheet 21 and the second half hoop sheet are arranged at the joint of the second connecting pipe 4 and the mounting sleeve 111, and are bent to form a bending structure for wrapping the second limiting ring 41 and the outer edge 1112, so as to ensure that the intrados of the first half hoop sheet 21 and the second half hoop sheet can be closely attached to the second connecting pipe 4, the second limiting ring 41, the mounting sleeve 111 and the outer edge 1112, two ends of the first half hoop sheet 21 are connected with two ends of the second half hoop sheet in a one-to-one correspondence manner, the end parts of the first half hoop sheet 21 and the second half hoop sheet are bent to form an ear plate 23, and the ear plate 23 of the first half hoop sheet 21 is fixedly connected with the ear plate 23 of the second half hoop sheet through bolts.

Further, the second limiting ring 41 is sleeved with the sealing ring 5 outside the outer edge 1112, the sealing ring 5 is made of rubber materials to play a role in water blocking and fastening, and the inner cambered surfaces of the first half hoop sheet 21 and the second half hoop sheet are provided with the sealing groove 24 for accommodating the sealing ring 5, so that the connection tightness of the hoop 2 is further improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A flexible pipe fitting for shield constructs quick-witted change mud pipeline switching, its characterized in that includes:

a first flange plate (121) is arranged at one end of the telescopic pipe body (1), a first connecting pipe (3) is connected to the first flange plate (121), a mounting sleeve (111) is arranged at the other end of the telescopic pipe body (1), and a second connecting pipe (4) connected with the telescopic pipe body (1) is inserted into the mounting sleeve (111);

a first limit ring (1111) having an outer peripheral wall fixedly connected to an inner peripheral wall of the mounting sleeve (111), and an end of the second connecting pipe (4) being abutted against an end surface of the first limit ring (1111); and

and the anchor ear (2) is connected to the joint of the second connecting pipe (4) and the mounting sleeve (111) in a sealing way.

2. The telescopic pipe fitting for transferring slurry pipeline of shield tunneling machine according to claim 1, wherein a second limiting ring (41) is arranged on the peripheral wall of the second connecting pipe (4), an outer edge (1112) is arranged at one end of the mounting sleeve (111) far away from the telescopic pipe body (1), and the second limiting ring (41) is abutted to the outer edge (1112) of the mounting sleeve (111).

3. The telescopic pipe fitting for switching slurry pipeline of shield tunneling machine according to claim 2, wherein said anchor ear (2) comprises:

first half hoop piece (21) and second half hoop piece, first half hoop piece (21) with the intrados hoop of second half hoop piece is located second connecting pipe (4) with the junction of installation sleeve (111), and buckle and form cladding second spacing ring (41) with outer buckling structure along (1112), the both ends of first half hoop piece (21) with the both ends one-to-one of second half hoop piece are connected.

4. A telescopic pipe fitting for transferring slurry pipeline of shield tunneling machine according to claim 3, characterized in that the ends of the first half hoop sheet (21) and the second half hoop sheet are bent to form an ear plate (23), and the ear plate (23) of the first half hoop sheet (21) and the ear plate (23) of the second half hoop sheet are fixedly connected by bolts.

5. A telescopic pipe fitting for transferring slurry pipeline of shield tunneling machine according to claim 3, characterized in that the second limiting ring (41) and the outer side of the outer edge (1112) are sleeved with sealing rings (5), and the inner cambered surfaces of the first half hoop sheet (21) and the second half hoop sheet are provided with sealing grooves (24) for accommodating the sealing rings (5).

6. Telescopic pipe fitting for shield tunneling machine mud transfer pipeline switching according to any of claims 1-5, characterized in that the telescopic pipe body (1) comprises:

an outer tube (11) having one end connected to the mounting sleeve (111);

one end of the inner pipe (12) is inserted into the outer pipe (11), and the other end of the inner pipe (12) is connected with the first flange plate (121); and

and the end part of the driving device is connected with the outer peripheral wall of the outer tube (11), the output end of the driving device is connected with the outer peripheral wall of the inner tube (12), and the driving device is parallel to the axial directions of the inner tube (12) and the outer tube (11) and is configured to realize the expansion and contraction of the inner tube (12) in the outer tube (11).

7. The telescopic pipe fitting for switching a slurry pipeline of a shield tunneling machine according to claim 6, wherein said driving means comprises:

the oil cylinders (14) are at least two, the ends of the two oil cylinders (14) are connected with the outer peripheral wall of the outer tube (11), and the output end of the oil cylinder (14) is connected with the outer peripheral wall of the inner tube (12).

8. The telescoping tube fitting for shield tunneling machine slurry transfer line transfer of claim 6, further comprising:

the sealing tube (13) is arranged at one end of the outer tube (11) away from the mounting sleeve (111), the inner peripheral wall of the sealing tube (13) is tightly attached to the outer peripheral wall of the inner tube (12), and a gap is reserved between the inner peripheral wall of the outer tube (11) and the outer peripheral wall of the inner tube (12).

9. The telescopic pipe fitting for switching a slurry pipeline of a shield tunneling machine according to claim 8, wherein the outer peripheral wall of the outer pipe (11) is provided with a lubrication port (112) communicating with the inside thereof.

10. The telescopic pipe fitting for switching a slurry pipeline of a shield tunneling machine according to claim 6, wherein the inner pipe (12) has a contracted state and an extended state, when the inner pipe (12) is in the contracted state, one end of the inner pipe (12) is abutted against the first stop collar (1111), and when the outer pipe (11) is in the extended state, one end of the inner pipe (12) is always located in the outer pipe (11).