阅读说明：本技术 一种搭载于tbm的高压水射流系统管路防松接头 (Pipeline anti-loosening joint of high-pressure water jet system carried on TBM ) 是由 张金良 杨风威 汪雪英 卓兴建 夏毅敏 齐志冲 曹智国 于 2020-12-31 设计创作，主要内容包括：本发明公开一种搭载于TBM的高压水射流系统管路防松接头,包括与高压管固定为一体的软管扣压件以及高压螺套、软管支撑套、哈夫夹套和压紧螺垫；软管扣压件包括依次连接的锥形头部、外螺纹段、锥形连接段和圆柱段；高压螺套内设置有连通的第一通孔和第二通孔,压紧螺垫上具有第一内螺纹,第二通孔上设置有第二内螺纹,压紧螺垫内置于第一通孔中,第一内螺纹与第二内螺纹对接且均旋合在外螺纹段上,锥形头部露出在压紧螺垫外；哈夫夹套固定在圆柱段上；软管支撑套套设在锥形连接段上,软管支撑套的一端与哈夫夹套固定连接,软管支撑套的另一端轴向卡住高压螺套远离压紧螺垫的一端的端面,避免高压水管路中连接螺纹因强烈振动而发生连接松动。(The invention discloses a high-pressure water jet system pipeline anti-loose joint carried on a TBM (tunnel boring machine), which comprises a hose buckling piece, a high-pressure threaded sleeve, a hose supporting sleeve, a half jacket and a pressing threaded cushion, wherein the hose buckling piece and the high-pressure pipe are fixed into a whole; the hose buckling and pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence; the high-pressure screw sleeve is internally provided with a first through hole and a second through hole which are communicated, a first internal thread is arranged on the compression screw pad, a second internal thread is arranged on the second through hole, the compression screw pad is arranged in the first through hole, the first internal thread and the second internal thread are butted and are screwed on the external thread section, and the conical head part is exposed out of the compression screw pad; the half jacket is fixed on the cylindrical section; the hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected with the half clamping sleeve, and the other end of the hose support sleeve axially clamps the end face of one end of the high-pressure threaded sleeve, which is far away from the compression threaded pad, so that connection looseness of connecting threads in a high-pressure water pipeline due to strong vibration is avoided.)

1. A pipeline anti-loose joint of a high-pressure water jet system carried on a TBM is characterized by comprising a hose buckling piece, a high-pressure threaded sleeve, a hose supporting sleeve, a half jacket and a pressing threaded pad, wherein the hose buckling piece and the high-pressure pipe are fixed into a whole;

the hose buckling and pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence;

a first through hole and a second through hole which are communicated are arranged in the high-pressure screw sleeve, the diameter of the first through hole is larger than that of the second through hole,

the compression screw pad is provided with a first internal thread, the second through hole is provided with a second internal thread, the compression screw pad is arranged in the first through hole, the first internal thread and the second internal thread are butted and are screwed on the external thread section,

the conical head is exposed out of the pressing screw pad;

the half jacket is fixed on the cylindrical section;

the hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected with the half jacket, and the other end of the hose support sleeve axially clamps the end face of the high-pressure threaded sleeve, which is far away from one end of the pressing threaded pad.

2. The anti-loose joint for the high-pressure water jet system pipeline carried on the TBM as claimed in claim 1, wherein the high-pressure screw sleeve comprises a screw sleeve body and a hexagonal nut connected to one end of the screw sleeve body,

the hexagonal nut is arranged at one end far away from the pressing screw pad.

3. The anti-loose joint for the pipeline of the high-pressure water jet system carried on the TBM as claimed in claim 2, wherein a radial slot is arranged on the end surface of the hexagonal nut, the depth direction of the radial slot is the axial direction of the hexagonal nut, the length direction of the radial slot is the radial direction of the hexagonal nut,

the hose support sleeve is provided with a boss, and the boss is embedded into the radial clamping groove.

4. The anti-loose joint for the high-pressure water jet system pipeline, which is carried on the TBM, according to claim 3, wherein the number of the radial clamping grooves is plural,

and are arranged in a circle with equal included angles.

5. The anti-loose joint for the high-pressure water jet system pipeline carried on the TBM according to claim 4, wherein a connecting line of the central lines of any two opposite radial clamping grooves is coincident with the diameter of the second through hole,

the boss comprises a first sub boss and a second sub boss, the connecting line of the central lines of the first sub boss and the second sub boss is coincided with the diameter of the second through hole,

the first sub boss and the second sub boss are respectively embedded into one of the two opposite radial clamping grooves.

6. The anti-loose joint for the pipeline of the high-pressure water jet system carried on the TBM according to claim 3, wherein the width of the boss is equal to that of the radial clamping groove.

7. The high pressure water jet system pipeline anti-loosening joint mounted on a TBM as claimed in claim 1, wherein a tapered hole is provided between the first through hole and the second through hole, a conical surface pressing screw pad is built in the tapered hole, and a threaded hole on the conical surface pressing screw pad is matched with the external threaded section.

8. The anti-loose joint for the pipeline of the high-pressure water jet system carried on the TBM as claimed in claim 1, wherein the diameter of the through hole of the half jacket is equal to the outer diameter of the cylindrical section,

a cutting slit is arranged from the inner surface of the through hole of the half jacket to the outer surface of the half jacket, the cutting slit cuts off the pipe wall of the half jacket,

the length direction of the cutting seam is the axial direction of the half jacket,

the half clamping sleeve is provided with a bolt hole in the direction perpendicular to the cutting seam, and the half clamping sleeve is fixedly connected with the cylindrical section through a bolt.

9. The high-pressure water jet system pipeline anti-loosening joint carried on the TBM as claimed in claim 1, wherein an annular groove is arranged in the through hole of the half jacket, and an O-ring for increasing friction force is arranged in the annular groove.

10. The anti-loose joint for the high-pressure water jet system pipeline carried on the TBM according to claim 1, wherein the hose support sleeve is of a tubular structure,

one end of the hose supporting sleeve is fixedly connected with the half clamping sleeve by one quarter to one half of end surfaces, and gaps are reserved between the other end surfaces and the half clamping sleeve.

Technical Field

The invention relates to the technical field of high-pressure water jet assisted rock breaking, in particular to a high-pressure water jet system pipeline anti-loosening joint carried on a TBM.

Background

In the TBM construction, if the hardness of rocks in a tunneling section is too high, and the performance of the hob cannot be matched with geological conditions, the problems that the hob is difficult to break the rocks, a cutter ring is seriously abraded and the like can occur, a large amount of time cost can be consumed for checking, maintaining and replacing the hob, and the TBM construction progress is greatly influenced.

In order to solve the problem of low rock breaking efficiency of a hob under a hard rock stratum, domestic and foreign scholars propose various auxiliary rock breaking methods, high-pressure water and the hob are combined to break rock, so that the environment-friendly and efficient auxiliary rock breaking technology is provided, and rock breaking operation is completed by the aid of the high-pressure jet formed by a nozzle after passing through a supercharging device.

In the TBM construction process, the high-pressure water pipeline connecting structure is influenced by water jet and the rock breaking of a cutter hob and is in strong vibration, so that the connecting thread of the high-pressure water pipeline is always loosened, and the safety and stable operation of the high-pressure water jet auxiliary rock breaking system are influenced.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a high pressure water jet system pipeline anti-loosening joint mounted on a TBM to prevent connection loosening of a connection screw in a high pressure water pipeline due to strong vibration.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a high pressure water jet system pipeline anti-loosening joint mounted on a TBM, which can prevent connection loosening of connection threads in a high pressure water pipeline due to strong vibration.

In order to achieve the purpose, the invention provides the following technical scheme:

a pipeline anti-loose joint of a high-pressure water jet system carried on a TBM (tunnel boring machine) comprises a hose buckling piece, a high-pressure threaded sleeve, a hose supporting sleeve, a half clamping sleeve and a pressing threaded cushion, wherein the hose buckling piece and the high-pressure threaded sleeve are fixed into a whole;

the hose buckling and pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence;

a first through hole and a second through hole which are communicated are arranged in the high-pressure screw sleeve, the diameter of the first through hole is larger than that of the second through hole,

the compression screw pad is provided with a first internal thread, the second through hole is provided with a second internal thread, the compression screw pad is arranged in the first through hole, the first internal thread and the second internal thread are butted and are screwed on the external thread section,

the conical head is exposed out of the pressing screw pad;

the half jacket is fixed on the cylindrical section;

the hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected with the half jacket, and the other end of the hose support sleeve axially clamps the end face of the high-pressure threaded sleeve, which is far away from one end of the pressing threaded pad.

Preferably, above-mentioned high-pressure swivel nut includes the swivel nut body and connects the hexagon nut of the one end of swivel nut body, the hexagon nut setting is keeping away from the one end that compresses tightly the swivel nut.

Preferably, the end face of the hexagonal nut is provided with a radial slot, the depth direction of the radial slot is the axial direction of the hexagonal nut, the length direction of the radial slot is the radial direction of the hexagonal nut,

the hose support sleeve is provided with a boss, and the boss is embedded into the radial clamping groove.

Preferably, the radial clamping groove is a plurality of radial clamping grooves,

and are arranged in a circle with equal included angles.

Preferably, a connecting line of the central lines of any two opposite radial clamping grooves is coincident with the diameter of the second through hole,

the boss comprises a first sub boss and a second sub boss, the connecting line of the central lines of the first sub boss and the second sub boss is coincided with the diameter of the second through hole,

the first sub boss and the second sub boss are respectively embedded into one of the two opposite radial clamping grooves.

Preferably, the width of the boss is equal to that of the radial clamping groove.

Preferably, a taper hole is formed between the first through hole and the second through hole, a conical surface pressing screw pad is arranged in the taper hole, and a threaded hole in the conical surface pressing screw pad is matched with the external threaded section for use.

Preferably, the diameter of the through hole of the half jacket is equal to the outer diameter of the cylindrical section,

a cutting slit is arranged from the inner surface of the through hole of the half jacket to the outer surface of the half jacket, the cutting slit cuts off the pipe wall of the half jacket,

the length direction of the cutting seam is the axial direction of the half jacket,

the half clamping sleeve is provided with a bolt hole in the direction perpendicular to the cutting seam, and the half clamping sleeve is fixedly connected with the cylindrical section through a bolt.

Preferably, an annular groove is arranged in the through hole of the half clamping sleeve, and an O-ring for increasing friction force is arranged in the annular groove.

Preferably, the hose support sleeve is of a tubular structure,

one end of the hose supporting sleeve is fixedly connected with the half clamping sleeve by one quarter to one half of end surfaces, and gaps are reserved between the other end surfaces and the half clamping sleeve.

The invention provides a TBM-carried high-pressure water jet system pipeline anti-loosening joint which comprises a hose buckling piece, a high-pressure threaded sleeve, a hose supporting sleeve, a half clamping sleeve and a pressing threaded pad, wherein the hose buckling piece and the high-pressure threaded sleeve are fixed into a whole;

the hose buckling and pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence;

a first through hole and a second through hole which are communicated are arranged in the high-pressure screw sleeve, the diameter of the first through hole is larger than that of the second through hole,

the compression screw pad is provided with a first internal thread, the second through hole is provided with a second internal thread, the compression screw pad is arranged in the first through hole, the first internal thread and the second internal thread are butted and are screwed on the external thread section,

the conical head is exposed out of the pressing screw pad;

the half jacket is fixed on the cylindrical section;

the hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected with the half jacket, and the other end of the hose support sleeve axially clamps the end face of the high-pressure threaded sleeve, which is far away from one end of the pressing threaded pad.

According to the anti-loose joint carried on the TBM high-pressure water jet system pipeline, the half jacket is fixed on the cylindrical section of the hose fastening piece to limit the relative movement of the hose fastening piece and the hose supporting sleeve, and the high-pressure threaded sleeve is axially clamped to limit the rotation of the high-pressure threaded sleeve, so that the high-pressure threaded sleeve is effectively prevented from being loosened, connection of connecting threads in the high-pressure water pipeline is prevented from being loosened due to strong vibration, and the pipeline of the high-pressure water jet system is ensured to be sealed and stably used.

Meanwhile, the pipeline anti-loosening joint structure of the TBM-carried high-pressure water jet system is simple, good in anti-loosening effect, simple to machine and manufacture and convenient to assemble.

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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pipeline anti-loose joint of a high-pressure water jet system carried on a TBM according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a high-pressure thread insert according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a radial slot on a high-pressure nut according to an embodiment of the present invention;

FIG. 4 is a schematic view of a hose crimp provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural view of a hose support sleeve and a huff collet according to an embodiment of the present invention.

In the above FIGS. 1-5:

the device comprises a hose crimping piece 1, an external thread section 11, a conical connecting section 12, a cylindrical section 13, a high-pressure threaded sleeve 2, a hexagonal nut 21, a threaded sleeve body 22, a radial clamping groove 23, a hose supporting sleeve 3, a half clamping sleeve 4, a pressing threaded pad 5, a conical pressing threaded pad 6 and an O-shaped ring 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, terms such as "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the components or elements of the present disclosure, and do not refer to any components or elements in the present disclosure, and are not to be construed as limiting the present disclosure.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Interpretation of terms:

TBM construction:

the TBM is called a Tunnel Boring Machine in English, called a full-face Tunnel Boring Machine in Chinese, and is used for parallel and continuous operation of construction procedures such as Boring, supporting, deslagging and the like, is factory assembly line Tunnel construction equipment integrating systems such as Machine, electricity, liquid, light, gas and the like, has the advantages of high Boring speed, environmental protection, high comprehensive benefit and the like, can realize the construction of a long deeply buried Tunnel with complex geographic landforms which is difficult to realize by a traditional drilling and blasting method, and is rapidly increased in application in Tunnel projects such as China railways, hydropower, traffic, mines, municipal administration and the like.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a pipeline anti-loose joint of a high-pressure water jet system loaded on a TBM according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a high-pressure thread insert according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a radial slot on a high-pressure nut according to an embodiment of the present invention; FIG. 4 is a schematic view of a hose crimp provided in accordance with an embodiment of the present invention; fig. 5 is a schematic structural view of a hose support sleeve and a huff collet according to an embodiment of the present invention.

The anti-loosening joint of the pipeline of the high-pressure water jet system carried on the TBM comprises a hose crimping piece 1, a high-pressure threaded sleeve 2, a hose supporting sleeve 3, a half jacket 4 and a pressing threaded cushion 5, wherein the hose crimping piece and the high-pressure pipe are fixed into a whole;

the hose crimping piece 1 comprises a conical head, an external thread section 11, a conical connecting section 12 and a cylindrical section 13 which are connected in sequence;

a first through hole and a second through hole which are communicated are arranged in the high-pressure screw sleeve 2, the diameter of the first through hole is larger than that of the second through hole,

the pressing screw pad 5 is provided with a first internal thread, the second through hole is provided with a second internal thread, the pressing screw pad 5 is arranged in the first through hole, the first internal thread and the second internal thread are in butt joint and are screwed on the external thread section 11,

the conical head is exposed out of the pressing screw pad 5;

the half jacket 4 is fixed on the cylindrical section 13;

the hose support sleeve 3 is sleeved on the conical connecting section 12, one end of the hose support sleeve 3 is fixedly connected with the half jacket 4, and the other end of the hose support sleeve 3 axially clamps the end face of one end of the high-pressure screw sleeve 2 far away from the pressing screw pad 5.

According to the anti-loose joint of the TBM-carried high-pressure water jet system pipeline, provided by the embodiment of the invention, the half jacket 4 is fixed on the cylindrical section 13 of the hose fastening piece 1, so that the relative movement of the hose fastening piece 1 and the hose supporting sleeve 3 is limited, the high-pressure screw sleeve 2 is axially clamped to limit the rotation of the high-pressure screw sleeve 2, the high-pressure screw sleeve 2 is effectively prevented from being loosened, connection of connecting threads in a high-pressure water pipeline is prevented from being loosened due to strong vibration, and the pipeline of the high-pressure water jet system is ensured to be sealed and stably used.

Meanwhile, the pipeline anti-loosening joint structure of the TBM-carried high-pressure water jet system is simple, good in anti-loosening effect, simple to machine and manufacture and convenient to assemble.

Specifically, high-pressure swivel nut 2 includes swivel nut body 22 and connects the hex nut 21 in the one end of swivel nut body 22, and hex nut 21 sets up the one end of keeping away from compressing tightly the swivel nut 5.

Wherein, the end surface of the hexagonal nut 21 is provided with a radial slot 23, the depth direction of the radial slot 23 is the axial direction of the hexagonal nut 21, the length direction of the radial slot 23 is the radial direction of the hexagonal nut 21,

the hose support sleeve 3 is provided with a boss which is embedded into the radial clamping groove 23.

In order to further optimize the above solution, the radial clamping groove 23 is multiple,

and are arranged in a circle with equal included angles.

Wherein the connecting line of the central lines of any two opposite radial clamping grooves 23 is superposed with the diameter of the second through hole,

the boss comprises a first sub boss and a second sub boss, the connecting line of the central lines of the first sub boss and the second sub boss is superposed with the diameter of the second through hole,

the first sub-boss and the second sub-boss are respectively embedded into one of the two opposite radial clamping grooves 23.

Specifically, the width of the boss is equal to the width of the radial slot 23.

In order to further optimize the scheme, a tapered hole is formed between the first through hole and the second through hole, a conical surface pressing screw pad 6 is arranged in the tapered hole, and a threaded hole in the conical surface pressing screw pad 6 is matched with the external threaded section 11 for use.

In order to further optimize the above solution, the diameter of the through hole of the half jacket 4 is equal to the outer diameter of the cylindrical section 13,

a cutting slit is arranged from the inner surface of the through hole of the half jacket 4 to the outer surface of the half jacket 4, the cutting slit cuts off the pipe wall of the half jacket 4,

the length direction of the cutting seam is the axial direction of the half jacket 4,

the half jacket 4 is provided with bolt holes in the direction perpendicular to the cutting seams, and the half jacket 4 is fixedly connected with the cylindrical section 13 through bolts.

In order to further optimize the scheme, an annular groove is arranged in the through hole of the half jacket 4, and an O-shaped ring 7 for increasing friction force is arranged in the annular groove.

In order to further optimize the above solution, the hose support 3 is of a tubular construction,

one end of the hose supporting sleeve 3 is fixedly connected with the half clamping sleeve 4 by one quarter of the end face, and gaps are reserved between the other end faces and the half clamping sleeve 4.

The anti-loose joint for the pipeline of the TBM-mounted high-pressure water jet system comprises the following components in specific implementation:

comprises a hose buckling piece 1 fixed with one end of a high-pressure hose into a whole, and a high-pressure threaded sleeve 2, a hose supporting sleeve 3, a half jacket 4 and a pressing threaded pad 5 which are sleeved on the hose buckling piece 1;

the hose crimping piece 1 comprises an external thread section 11, an arc transition section, namely a conical connecting section 12 and a cylindrical section 13;

the high-pressure screw sleeve 2 consists of a screw rod, namely a screw sleeve body 22 and a hexagonal screw cap 21, and is provided with a through hole, the through hole consists of a first through hole and a second through hole, a pressing screw pad 5 is arranged in one section of the through hole, namely the pressing screw pad 5 is arranged in the first through hole, the other section of the through hole is processed with an internal thread, namely the second through hole is provided with a second internal thread,

the outer end face of the hexagonal nut 21 is provided with a rectangular groove, namely a radial clamping groove 23, and the high-pressure threaded sleeve 2 is assembled on the external thread section 11 on the hose crimping piece 1 through internal threads;

one end of the hose supporting sleeve 3 is fixed with the half clamping sleeve 4, and the other end of the hose supporting sleeve is provided with a boss which is matched with the rectangular groove on the outer end face of the hexagonal nut 21 and can be embedded into the rectangular groove;

half press from both sides the cover 4 and fix on the cylinder section 13 of hose cramp 1 through bolt-up, the relative movement of restriction hose cramp 1 and hose support cover 3 to boss restriction high-pressure swivel nut 2 through the embedding into 21 rectangular channels of hex nut rotates, realizes locking function, thereby realizes locking high-pressure swivel nut 2 effectively, guarantees that high pressure water jet system pipeline is sealed and stable the use, and simultaneously, this structure processing manufacturing is simple, convenient assembling.

In order to further optimize the scheme, in order to enhance the sealing performance between the high-pressure screw sleeve 2 and the hose crimping piece 1 and increase the friction force, a section of the compression screw pad 5 is arranged in the through hole of the high-pressure screw sleeve 2, a conical surface transition section is arranged between the other section provided with the internal thread, and the conical surface compression screw pad 6 is arranged on the conical surface transition section.

Rectangular grooves formed in the end face of the hexagonal nut 21 of the high-pressure screw sleeve 2 are uniformly distributed in the radial direction.

Wherein, the boss that the terminal surface of hose support cover 3 set up has two, and is located same diameter, and the width of two bosses all equals with the width of the rectangular channel on the outer terminal surface of hexagon nut 21, makes things convenient for block between them.

Wherein, the diameter of the through hole of the half clamping sleeve 4 is equal to the outer diameter of the cylindrical section 13, a cutting seam is arranged from the inner surface to the outer surface, two bolt holes are arranged in the direction vertical to the cutting seam surface, and the half clamping sleeve 4 is fixed on the hose buckling piece 1 by screwing the bolts.

Wherein, a groove is arranged in the through hole of the half jacket 4, and an O-shaped ring 7 is arranged in the groove and is used for increasing the friction force between the half jacket 4 and the hose buckling piece 1 and limiting the axial displacement of the hose supporting sleeve 3 and the half jacket 4.

Wherein, the end surface of only one quarter to one half section of the end part of the hose supporting sleeve 3 is fixedly connected with the half jacket 4, and the rest part of the end part of the hose supporting sleeve 3 has a gap with the half jacket 4.

The hose buckling part 1, the high-pressure threaded sleeve 2, the hose supporting sleeve 3, the half clamping sleeve 4 and the pressing threaded pad 5 are coaxial, and the hose supporting sleeve 3 and the half clamping sleeve 4 which are fixed together are of a symmetrical structure.

According to the anti-loose joint of the high-pressure water jet system pipeline carried on the TBM, the hose support sleeve 3 is fixed on the hose buckling piece 1 by the aid of the half jacket 4, and then the rotation of the high-pressure threaded sleeve 2 relative to the hose buckling piece 1 is limited by the boss of the rectangular groove embedded in the outer end face of the high-pressure threaded sleeve 2, so that the high-pressure threaded sleeve 2 and the hose buckling piece 1 are fastened and anti-loose, the problem that connecting threads in the high-pressure water pipeline are loosened due to strong vibration is solved, the stable use of a high-pressure sealing face is guaranteed, risks in TBM construction are reduced, and the reliability of a pressurized-water jet auxiliary rock breaking system is improved.

The pipeline anti-loosening joint of the TBM-carried high-pressure water jet system is novel in design, simple in part processing and manufacturing, easy and convenient to assemble and disassemble and capable of meeting engineering requirements, and accords with the reality.

When the anti-loose joint for the pipeline of the high-pressure water jet system loaded on the TBM provided by the embodiment of the invention is used:

1. firstly, sleeving a half jacket 4 provided with an O-shaped ring 7 and a hose supporting sleeve 3 on a hose crimping piece 1;

2. then screwing the high-pressure threaded sleeve 2 on the external thread section 11 of the hose crimping piece 1;

3. then a conical surface pressing screw pad 6 and a pressing screw pad 5 are sequentially arranged;

4. then screwing the high-pressure threaded sleeve 2 and the hose crimping piece 1 together at the interface of the pipeline of the high-pressure water jet system through the external thread of the high-pressure threaded sleeve 2;

5. then, a boss at the end part of the hose support sleeve 3 is embedded into a rectangular groove on the end surface of the high-pressure thread sleeve 2;

6. and finally, screwing the bolt on the half clamping sleeve 4, and fixing the half clamping sleeve 4 and the hose supporting sleeve 3 on the hose buckling piece 1.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.