A pipeline anti-loosening joint for high-pressure water jetting system mounted on TBM

Abstract

The invention discloses a pipeline anti-loosening joint for a high-pressure water jetting system carried on a TBM, comprising a hose clamping piece fixed to a high-pressure pipe as a whole, a high-pressure screw sleeve, a hose support sleeve, a half jacket and a compression screw washer; the hose clamping piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section connected in sequence; a first through hole and a second through hole are provided in communication in the high-pressure screw sleeve, the compression screw washer has a first internal thread, the second through hole is provided with a second internal thread, the compression screw washer is built in the first through hole, the first internal thread is butted against the second internal thread and both are screwed on the external thread section, and the conical head is exposed outside the compression screw washer; 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 to the half jacket, and the other end of the hose support sleeve axially clamps the end face of the high-pressure screw sleeve away from the compression screw washer, so as to prevent the connection thread in the high-pressure water pipeline from loosening due to strong vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure water jet assisted rock breaking, and in particular to a pipeline anti-loosening joint of a high-pressure water jet system carried on a TBM. Background Art

[0002] In TBM construction, if the rock hardness in the excavation section is too high and the performance of the roller cutter cannot match the geological conditions, the roller cutter will have difficulty breaking the rock and the cutter ring will be severely worn. The inspection, maintenance and replacement of the cutter will consume a lot of time and cost, greatly affecting the progress of TBM construction.

[0003] In order to solve the problem of low efficiency of roller rock breaking in hard rock formations, domestic and foreign scholars have proposed a variety of auxiliary rock breaking methods. High-pressure water and roller composite rock breaking is a green, environmentally friendly and efficient auxiliary rock breaking technology. It mainly relies on the high-pressure jet formed by the nozzle after passing through the booster equipment to erode the rock to assist the roller to complete the rock breaking operation.

[0004] During TBM construction, the high-pressure water pipeline connection structure is affected by the water jet and the cutterhead rock breaking, and is in strong vibration, which often causes the connection threads of the high-pressure water pipeline to loosen, affecting the safety and stable operation of the high-pressure water jet assisted rock breaking system.

[0005] Therefore, how to provide a high-pressure water jet system pipeline anti-loosening joint mounted on a TBM to prevent the connection threads in the high-pressure water pipeline from loosening due to strong vibration is a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a high-pressure water jet system pipeline anti-loosening joint mounted on a TBM to prevent the connection threads in the high-pressure water pipeline from loosening due to strong vibration.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A high-pressure water jet system pipeline anti-loosening joint mounted on a TBM, comprising a hose buckle fixed integrally with the high-pressure pipe, a high-pressure screw sleeve, a hose support sleeve, a half jacket and a compression screw washer;

[0009] The hose pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence;

[0010] The high-pressure screw sleeve is provided with a first through hole and a second through hole in communication, wherein the diameter of the first through hole is greater than the diameter of the second through hole.

[0011] The compression screw washer has a first internal thread, the second through hole is provided with a second internal thread, the compression screw washer is built into the first through hole, the first internal thread is butted against the second internal thread and both are screwed onto the external thread segment,

[0012] The conical head is exposed outside the compression screw washer;

[0013] The Hough jacket is fixed on the cylindrical section;

[0014] The hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected to the half jacket, and the other end of the hose support sleeve axially clamps the end surface of the high-pressure screw sleeve away from the clamping screw pad.

[0015] Preferably, the high-pressure screw sleeve comprises a screw sleeve body and a hexagonal nut connected to one end of the screw sleeve body, and the hexagonal nut is arranged at an end away from the compression screw washer.

[0016] Preferably, a radial groove is provided on the end surface of the hexagonal nut, the depth direction of the radial groove is the axial direction of the hexagonal nut, and the length direction of the radial groove is the radial direction of the hexagonal nut.

[0017] The hose support sleeve is provided with a boss, and the boss is embedded in the radial groove.

[0018] Preferably, there are a plurality of radial slots.

[0019] And they are arranged at equal angles on the circle.

[0020] Preferably, a line connecting the center lines of any two opposite radial grooves coincides with the diameter of the second through hole.

[0021] The boss includes a first sub-boss and a second sub-boss, and a line connecting the center lines of the first sub-boss and the second sub-boss coincides with a diameter of the second through hole.

[0022] The first sub-boss and the second sub-boss are respectively embedded in one of the two opposite radial grooves.

[0023] Preferably, the width of the boss is equal to that of the radial groove.

[0024] Preferably, a tapered hole is provided between the first through hole and the second through hole, a tapered surface pressing screw washer is built in the tapered hole, and the threaded hole on the tapered surface pressing screw washer is used in conjunction with the external thread segment.

[0025] Preferably, the through hole diameter of the Hough jacket is equal to the outer diameter of the cylindrical section.

[0026] A slit is provided from the inner surface of the through hole of the half jacket to the outer surface of the half jacket, and the slit disconnects the pipe wall of the half jacket.

[0027] The length direction of the slit is the axial direction of the Hough jacket.

[0028] The half jacket is provided with bolt holes in a direction perpendicular to the slit, and the half jacket is fixedly connected to the cylindrical section by bolts.

[0029] Preferably, an annular groove is provided in the through hole of the above-mentioned half jacket, and an O-ring for increasing friction is provided in the annular groove.

[0030] Preferably, the hose support sleeve is a tubular structure.

[0031] On one end of the hose support sleeve, one quarter to one half of the end surface is fixedly connected to the half jacket, and a gap is provided between the remaining end surface and the half jacket.

[0032] The high-pressure water jet system pipeline anti-loosening joint provided by the present invention and mounted on a TBM comprises a hose buckle piece fixed integrally with the high-pressure pipe, a high-pressure screw sleeve, a hose support sleeve, a half jacket and a compression screw washer;

[0033] The hose pressing piece comprises a conical head, an external thread section, a conical connecting section and a cylindrical section which are connected in sequence;

[0034] The high-pressure screw sleeve is provided with a first through hole and a second through hole in communication, wherein the diameter of the first through hole is greater than the diameter of the second through hole.

[0035] The compression screw washer has a first internal thread, the second through hole is provided with a second internal thread, the compression screw washer is built into the first through hole, the first internal thread is butted with the second internal thread and both are screwed onto the external thread segment,

[0036] The conical head is exposed outside the compression screw washer;

[0037] The Hough jacket is fixed on the cylindrical section;

[0038] The hose support sleeve is sleeved on the conical connecting section, one end of the hose support sleeve is fixedly connected to the half jacket, and the other end of the hose support sleeve axially clamps the end surface of the high-pressure screw sleeve away from the clamping screw pad.

[0039] The present invention provides a high-pressure water jet system pipeline anti-loosening joint mounted on a TBM, wherein a half jacket is fixed on a cylindrical section of a hose clamping piece to limit the relative movement of the hose clamping piece and a hose support sleeve, and the rotation of the high-pressure screw sleeve is limited by axially clamping the high-pressure screw sleeve, thereby effectively preventing the high-pressure screw sleeve from loosening, avoiding loosening of the connecting threads in the high-pressure water pipeline due to strong vibration, and ensuring the sealing and stable use of the high-pressure water jet system pipeline.

[0040] At the same time, the pipeline anti-loosening joint of the high-pressure water jet system carried on the TBM provided by the present invention has a simple structure, good anti-loosening effect, simple processing and manufacturing, and convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A schematic diagram of the structure of a pipeline anti-loosening joint of a high-pressure water jet system mounted on a TBM provided by an embodiment of the present invention;

[0043] Figure 2 A schematic structural diagram of a high-pressure screw sleeve provided in an embodiment of the present invention;

[0044] Figure 3 A schematic structural diagram of a radial groove on a high-pressure screw sleeve provided in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of the structure of a hose pressing member provided in an embodiment of the present invention;

[0046] Figure 5 A schematic structural diagram of a hose support sleeve and a half jacket provided in an embodiment of the present invention.

[0047] superior Figure 1-5 middle:

[0048] Hose buckling part 1, external thread section 11, conical connecting section 12, cylindrical section 13, high-pressure screw sleeve 2, hexagonal nut 21, screw sleeve body 22, radial groove 23, hose support sleeve 3, half jacket 4, clamping screw washer 5, conical surface clamping screw washer 6, O-ring 7. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the present invention, the directions or positional relationships indicated by terms such as "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0051] Unless otherwise defined, all professional terms used hereinafter have the same meaning as those generally understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention. It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0052] Terminology explanation:

[0053] TBM construction:

[0054] TBM stands for Tunnel Boring Machine in English and its Chinese name is full-section tunnel boring machine. It performs the construction processes such as excavation, support and slag discharge in parallel and continuously. It is a factory-based assembly line tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical and gas systems. It has the advantages of fast excavation speed, environmental protection and high comprehensive benefits. It can realize the construction of deep-buried long tunnels in complex geographical features that are difficult to achieve with traditional drilling and blasting methods. Its application in China's railway, hydropower, transportation, mining, municipal and other tunnel projects is growing rapidly.

[0055] Please refer to Figures 1 to 5 , Figure 1 A schematic diagram of the structure of a pipeline anti-loosening joint of a high-pressure water jet system mounted on a TBM provided in an embodiment of the present invention; Figure 2 A schematic structural diagram of a high-pressure screw sleeve provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a radial groove on a high-pressure screw sleeve provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a hose pressing member provided in an embodiment of the present invention; Figure 5 A schematic structural diagram of a hose support sleeve and a half jacket provided in an embodiment of the present invention.

[0056] The high-pressure water jet system pipeline anti-loosening joint provided in the embodiment of the present invention comprises a hose clamping piece 1 fixed integrally with the high-pressure pipe, a high-pressure screw sleeve 2, a hose support sleeve 3, a half jacket 4 and a compression screw washer 5;

[0057] The hose pressing 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;

[0058] A first through hole and a second through hole are connected in the high-pressure screw sleeve 2, and the diameter of the first through hole is larger than the diameter of the second through hole.

[0059] The compression screw washer 5 has a first internal thread, and the second through hole is provided with a second internal thread. The compression screw washer 5 is built into the first through hole, and the first internal thread is butted with the second internal thread and both are screwed on the external thread section 11.

[0060] The conical head is exposed outside the compression screw washer 5;

[0061] The Hough jacket 4 is fixed on the cylindrical section 13;

[0062] The hose support sleeve 3 is sleeved on the conical connecting section 12 , one end of the hose support sleeve 3 is fixedly connected to the half jacket 4 , and the other end of the hose support sleeve 3 axially clamps the end surface of the high-pressure screw sleeve 2 away from the clamping screw pad 5 .

[0063] The embodiment of the present invention provides a high-pressure water jet system pipeline anti-loosening joint mounted on a TBM, wherein the half jacket 4 is fixed on the cylindrical section 13 of the hose clamping piece 1, limits the relative movement of the hose clamping piece 1 and the hose support sleeve 3, and limits the rotation of the high-pressure screw sleeve 2 by axially clamping the high-pressure screw sleeve 2, thereby effectively preventing the high-pressure screw sleeve 2 from loosening, avoiding loosening of the connecting threads in the high-pressure water pipeline due to strong vibration, and ensuring the sealing and stable use of the high-pressure water jet system pipeline.

[0064] At the same time, the pipeline anti-loosening joint of the high-pressure water jet system carried on the TBM provided by the present invention has a simple structure, good anti-loosening effect, simple processing and manufacturing, and convenient assembly.

[0065] Specifically, the high-pressure screw sleeve 2 includes a screw sleeve body 22 and a hexagonal nut 21 connected to one end of the screw sleeve body 22 . The hexagonal nut 21 is arranged at an end away from the compression screw washer 5 .

[0066] A radial groove 23 is provided on the end surface of the hexagonal nut 21. The depth direction of the radial groove 23 is the axial direction of the hexagonal nut 21, and the length direction of the radial groove 23 is the radial direction of the hexagonal nut 21.

[0067] A boss is provided on the hose support sleeve 3 , and the boss is embedded in the radial groove 23 .

[0068] In order to further optimize the above solution, there are multiple radial slots 23.

[0069] And they are arranged at equal angles on the circle.

[0070] The connecting line of the center lines of any two opposite radial slots 23 coincides with the diameter of the second through hole.

[0071] The boss includes a first sub-boss and a second sub-boss, and a line connecting the center lines of the first sub-boss and the second sub-boss coincides with a diameter of the second through hole.

[0072] The first sub-boss and the second sub-boss are respectively embedded in one of the two opposite radial grooves 23 .

[0073] Specifically, the width of the boss is equal to that of the radial groove 23 .

[0074] In order to further optimize the above solution, a tapered hole is provided between the first through hole and the second through hole, a tapered surface pressing screw washer 6 is built in the tapered hole, and the threaded hole on the tapered surface pressing screw washer 6 is used in conjunction with the external thread section 11 .

[0075] In order to further optimize the above solution, the through hole diameter of the half jacket 4 is equal to the outer diameter of the cylindrical section 13.

[0076] A slit is provided from the inner surface of the through hole of the half jacket 4 to the outer surface of the half jacket 4, and the slit disconnects the tube wall of the half jacket 4.

[0077] The length direction of the slit is the axial direction of the Hough jacket 4.

[0078] The half jacket 4 is provided with bolt holes in a direction perpendicular to the slit, and the half jacket 4 is fixedly connected to the cylindrical section 13 by bolts.

[0079] In order to further optimize the above solution, an annular groove is provided in the through hole of the half jacket 4, and an O-ring 7 for increasing friction is provided in the annular groove.

[0080] In order to further optimize the above solution, the hose support sleeve 3 is a tubular structure.

[0081] On one end of the hose support sleeve 3 , one quarter to one half of the end surface is fixedly connected to the half jacket 4 , and there is a gap between the remaining end surface and the half jacket 4 .

[0082] The anti-loosening joint for the pipeline of the high-pressure water jet system provided in the embodiment of the present invention and carried on the TBM, when implemented:

[0083] It includes a hose clamping piece 1 fixed to one end of a high-pressure hose, and a high-pressure screw sleeve 2, a hose support sleeve 3, a half jacket 4 and a compression screw washer 5 sleeved on the hose clamping piece 1;

[0084] The hose pressing part 1 comprises an external thread section 11, an arc transition section, i.e. a conical connecting section 12, and a cylindrical section 13;

[0085] The high-pressure screw sleeve 2 is composed of a screw rod, that is, a screw sleeve body 22 and a hexagonal nut 21 and is provided with a through hole, which is composed of a first through hole and a second through hole. A compression screw washer 5 is installed in one section of the through hole, that is, the compression screw washer 5 is built in the first through hole, and an internal thread is processed in the other section, that is, the second through hole is provided with a second internal thread.

[0086] The outer end surface of the hexagonal nut 21 is provided with a rectangular groove, namely a radial groove 23, and the high-pressure screw sleeve 2 is assembled on the external thread section 11 on the hose buckle 1 through the internal thread;

[0087] One end of the hose support sleeve 3 is fixed to the half jacket 4, and the other end is provided with a boss that matches the rectangular groove on the outer end surface of the hexagonal nut 21 and can be embedded in the rectangular groove;

[0088] The half jacket 4 is fastened to the cylindrical section 13 of the hose clamp 1 by bolts, limiting the relative movement of the hose clamp 1 and the hose support sleeve 3, thereby limiting the rotation of the high-pressure screw sleeve 2 by embedding the boss in the rectangular groove of the hexagonal nut 21, realizing the anti-loosening function, thereby effectively preventing the high-pressure screw sleeve 2 from loosening, ensuring the sealing and stable use of the high-pressure water jet system pipeline. At the same time, the structure is simple to manufacture and easy to assemble.

[0089] Among them, in order to further optimize the above-mentioned scheme, in order to enhance the sealing between the high-pressure screw sleeve 2 and the hose clamping piece 1 and increase the friction force, a section of a clamping screw washer 5 is installed in the through hole of the high-pressure screw sleeve 2, and there is a conical transition section between the other section with an internal thread, and the conical transition section is equipped with a conical clamping screw washer 6.

[0090] The rectangular grooves arranged on the end surface of the hexagonal nut 21 of the high-pressure screw sleeve 2 are evenly distributed in the radial direction.

[0091] There are two bosses arranged on the end surface of the hose support sleeve 3 and they are located on the same diameter. The widths of the two bosses are equal to the width of the rectangular groove on the outer end surface of the hexagonal nut 21, so as to facilitate the engagement of the two.

[0092] The through hole diameter of the half jacket 4 is equal to the outer diameter of the cylindrical section 13, a slit is provided from the inner surface to the outer surface, and two bolt holes are provided perpendicular to the slit surface, and the half jacket 4 is fixed to the hose clamping part 1 by tightening the bolts.

[0093] A groove is provided in the through hole of the half jacket 4, and an O-ring 7 is installed in the groove to increase the friction between the half jacket 4 and the hose buckle 1 and limit the axial displacement of the hose support sleeve 3 and the half jacket 4.

[0094] Among them, only one quarter to one half of the end surface of the end of the hose support sleeve 3 is fixedly connected to the half jacket 4, and the rest of the end of the hose support sleeve 3 has a gap with the half jacket 4.

[0095] The hose pressing piece 1, the high-pressure screw sleeve 2, the hose support sleeve 3, the half jacket 4 and the pressing screw washer 5 are all coaxial, and the hose support sleeve 3 and the half jacket 4 fixed together are symmetrical structures.

[0096] The pipeline anti-loosening joint of the high-pressure water jet system carried on the TBM provided in the embodiment of the present invention relies on the half jacket 4 to fix the hose support sleeve 3 on the hose buckle 1, and then limits the rotation of the high-pressure screw sleeve 2 relative to the hose buckle 1 through the boss embedded in the rectangular groove of the outer end surface of the high-pressure screw sleeve 2, thereby tightening and preventing the high-pressure screw sleeve 2 and the hose buckle 1, which is beneficial to solving the problem of loosening of the connecting threads in the high-pressure water pipeline due to strong vibration, ensuring the stable use of the high-pressure sealing surface, reducing the risks in TBM construction, and improving the reliability of the pressure water jet assisted rock breaking system.

[0097] The high-pressure water jet system pipeline anti-loosening joint provided in the embodiment of the present invention and carried on the TBM has a novel design, conforms to reality, has simple parts processing and manufacturing, is easy and convenient to assemble and disassemble, and can meet engineering needs.

[0098] When using the pipeline anti-loosening joint of the high-pressure water jet system provided by the embodiment of the present invention and carried on the TBM:

[0099] 1. First, put the half jacket 4 equipped with O-ring 7 and the hose support sleeve 3 on the hose buckle 1;

[0100] 2. Then screw the high-pressure screw sleeve 2 onto the external thread section 11 of the hose pressing piece 1;

[0101] 3. Then install the conical compression screw washer 6 and the compression screw washer 5 in sequence;

[0102] 4. Then, tighten the high-pressure screw sleeve 2 and the hose pressing piece 1 together at the pipe interface of the high-pressure water jet system through the external thread of the high-pressure screw sleeve 2;

[0103] 5. Then, insert the boss at the end of the hose support sleeve 3 into the rectangular groove on the end surface of the high-pressure screw sleeve 2;

[0104] 6. Finally, tighten the bolts on the half jacket 4 and fix the half jacket 4 and the hose support sleeve 3 on the hose buckle 1.

[0105] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipeline anti-loosening joint for a high-pressure water jetting system mounted on a TBM, characterized in that: It includes a hose clamping piece fixed to the high-pressure pipe as a whole, a high-pressure screw sleeve, a hose support sleeve, a half jacket and a compression screw washer; The hose 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 provided with a first through hole and a second through hole in communication, wherein the diameter of the first through hole is greater than the diameter of the second through hole. The compression screw washer has a first internal thread, the second through hole is provided with a second internal thread, the compression screw washer is built into the first through hole, the first internal thread is butted against the second internal thread and both are screwed onto the external thread segment, The conical head is exposed outside the compression screw washer; The Hough 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 to the half jacket, and the other end of the hose support sleeve axially clamps the end surface of the high-pressure screw sleeve away from the clamping screw pad.

2. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 1, characterized in that: 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 an end away from the compression washer.

3. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 2, characterized in that: A radial groove is arranged on the end surface of the hexagonal nut, the depth direction of the radial groove is the axial direction of the hexagonal nut, and the length direction of the radial groove is the radial direction of the hexagonal nut. The hose support sleeve is provided with a boss, and the boss is embedded in the radial groove.

4. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 3, characterized in that: There are multiple radial slots. And they are arranged at equal angles on the circle.

5. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 4, characterized in that: The connecting line of the center lines of any two opposite radial grooves coincides with the diameter of the second through hole. The boss includes a first sub-boss and a second sub-boss, and a line connecting the center lines of the first sub-boss and the second sub-boss coincides with a diameter of the second through hole. The first sub-boss and the second sub-boss are respectively embedded in one of the two opposite radial grooves.

6. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 3, characterized in that: The width of the boss is equal to that of the radial groove.

7. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 1, characterized in that: A tapered hole is provided between the first through hole and the second through hole, a tapered surface pressing screw washer is built in the tapered hole, and the threaded hole on the tapered surface pressing screw washer is used in conjunction with the external thread segment.

8. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 1, characterized in that: The through hole diameter of the Hough jacket is equal to the outer diameter of the cylindrical section. A slit is provided from the inner surface of the through hole of the half jacket to the outer surface of the half jacket, and the slit disconnects the pipe wall of the half jacket. The length direction of the slit is the axial direction of the Hough jacket. The half jacket is provided with bolt holes in a direction perpendicular to the slit, and the half jacket is fixedly connected to the cylindrical section by bolts.

9. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 1, characterized in that: An annular groove is arranged in the through hole of the half jacket, and an O-ring for increasing friction is arranged in the annular groove.

10. The pipeline anti-loosening joint of the high-pressure water jet system mounted on the TBM according to claim 1, characterized in that: The hose support sleeve is a tubular structure. On one end of the hose support sleeve, one quarter to one half of the end surface is fixedly connected to the half jacket, and a gap is provided between the remaining end surface and the half jacket.

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