CN113567053A - Pressure maintaining tool for heading equipment - Google Patents
Pressure maintaining tool for heading equipment Download PDFInfo
- Publication number
- CN113567053A CN113567053A CN202110849299.8A CN202110849299A CN113567053A CN 113567053 A CN113567053 A CN 113567053A CN 202110849299 A CN202110849299 A CN 202110849299A CN 113567053 A CN113567053 A CN 113567053A
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- Prior art keywords
- pressure maintaining
- ring
- pressure
- sealing
- blocks
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- 238000007789 sealing Methods 0.000 claims abstract description 124
- 230000006835 compression Effects 0.000 claims abstract description 37
- 238000007906 compression Methods 0.000 claims abstract description 37
- 230000005641 tunneling Effects 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a pressure maintaining tool for heading equipment, which comprises a front pressure maintaining sealing ring and at least two pressure ring sub-blocks; all the pressure ring sub-blocks are sequentially connected end to end around a preset central line to form a pressure maintaining sealing pressure ring; the adjacent compression ring blocks are detachable and hermetically connected; an axial end face of the compression ring block is a sealing face, the compression ring block comprises a magnetic part, and the sealing face can compress the front pressure maintaining sealing ring in the pressure maintaining equipment under the state that the compression ring block is magnetically attracted to the pressure maintaining equipment. The pressure maintaining sealing pressure ring is formed by splicing split pressure ring blocks, so that the pressure maintaining sealing pressure ring can be stored in a separated state when not used, and is convenient to transport; when the pressure maintaining device is installed on the pressure maintaining device, each compression ring sub-block can be magnetically attracted on the pressure maintaining device, the positions of the compression ring sub-blocks are adjusted respectively, and the pressure maintaining device is convenient to assemble.
Description
Technical Field
The invention relates to the technical field of tunneling equipment, in particular to a pressure maintaining tool of the tunneling equipment.
Background
The shield machine has the advantages of rapidness, high efficiency, safety and the like, and is widely applied to tunnel engineering. The shield constructs owner and drives the core key part that is the shield structure machine, and seal structure can prevent to excavate storehouse rubble, sewage, solid microparticle and get into the gearbox, guarantees that the main drive normally works, and shield constructs the sealed reliability direct influence of owner drive its normal operating condition and life.
Before delivery, after in-plant transformation and maintenance or in-tunnel maintenance, the shield machine main drive generally needs to be subjected to a sealing performance test, so that a set of pressure maintaining tool needs to be specially designed for the shield machine main drive to perform an air tightness test.
However, the existing pressure maintaining tool is generally of an integrated structure, so that the weight and the size are large, a large storage space is needed, the transportation difficulty is large, when the pressure maintaining tool is assembled in a main drive, the special lifting appliance is needed to hoist and continuously adjust the position of the pressure maintaining tool, and the assembly difficulty is large.
Therefore, how to provide a pressure maintaining tool for heading equipment, which is convenient for transportation and assembly, is a technical problem to be solved by technical personnel in the field at present.
Disclosure of Invention
In view of the above, the invention aims to provide a pressure maintaining tool for heading equipment, which is convenient to transport and assemble.
In order to achieve the purpose, the invention provides the following technical scheme:
a pressure maintaining tool for a tunneling device comprises a front pressure maintaining sealing ring and at least two pressure ring sub-blocks; the compression ring blocks are sequentially connected end to end around a preset central line to form a pressure maintaining sealing compression ring; the adjacent compression ring blocks are detachable and hermetically connected; an axial end face of the compression ring block is a sealing face, the compression ring block comprises a magnetic portion, the compression ring block is magnetically attracted to the state of the pressure maintaining equipment, and the sealing face can compress the front pressure maintaining sealing ring to the pressure maintaining equipment.
Preferably, the front pressure retaining seal ring is removably attached to each of the sealing faces.
Preferably, a front positioning groove extending along the circumferential direction is arranged on the sealing surface; after the pressure maintaining sealing compression rings are formed, the front positioning grooves in the pressure maintaining sealing compression rings are butted to form a front annular groove, and the front pressure maintaining sealing ring is connected to the front annular groove.
Preferably, at least two front annular grooves are arranged on the pressure maintaining sealing pressure ring in a sleeved mode, and a gap is formed between every two adjacent front annular grooves along the radial direction.
Preferably, the circumferential end faces of the compression ring blocks are respectively provided with a side positioning groove, and the compression ring blocks are adjacent to each other.
Preferably, on the pressing ring partitioning block, the side positioning grooves are communicated with the front positioning grooves.
Preferably, the side positioning groove is a U-shaped groove, and two free ends of the side positioning groove are respectively communicated with the two front positioning grooves.
Preferably, the side pressure maintaining sealing strip is detachably connected with the pressing ring block.
Preferably, adjacent compression ring segments are magnetically connected.
Preferably, the adjacent compression ring blocks are detachably fixed through fixing bolts.
The pressure maintaining tool for the heading equipment comprises a front pressure maintaining sealing ring and at least two pressure ring sub-blocks; all the pressure ring sub-blocks are sequentially connected end to end around a preset central line to form a pressure maintaining sealing pressure ring; the adjacent compression ring blocks are detachable and hermetically connected; an axial end face of the compression ring block is a sealing face, the compression ring block comprises a magnetic part, and the sealing face can compress the front pressure maintaining sealing ring in the pressure maintaining equipment under the state that the compression ring block is magnetically attracted to the pressure maintaining equipment.
The pressure maintaining sealing pressure ring is formed by splicing split pressure ring blocks, so that the pressure maintaining sealing pressure ring can be stored in a separated state when not used, and is convenient to transport; when the pressure maintaining device is installed on the pressure maintaining device, each compression ring sub-block can be magnetically attracted on the pressure maintaining device, the positions of the compression ring sub-blocks are adjusted respectively, and the pressure maintaining device is 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 described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cross-sectional view of the tool of the present invention as installed in a main drive;
FIG. 2 is an enlarged view of FIG. 1 at B;
FIG. 3 is an axial view of the tooling provided by the present invention;
fig. 4 is a sectional view a-a of fig. 3.
Reference numerals:
a main drive 1;
the pressure maintaining sealing press ring comprises a pressure maintaining sealing press ring 2, a press ring partitioning block 21, a sealing surface 22, a front positioning groove 23, a side positioning groove 24, a first step surface 25, a butt joint surface 26 and a second step surface 27;
a front pressure maintaining sealing ring 3;
a side pressure maintaining sealing strip 4;
the bolt 5 is fixed.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The core of the invention is to provide the pressure maintaining tool for the tunneling equipment, which is convenient to transport and assemble.
In the first embodiment of the pressure maintaining tool for the heading equipment provided by the invention, please refer to fig. 1 to 4, which includes a front pressure maintaining sealing ring 3 and at least two pressure ring sub-blocks 21. The pressure maintaining sealing pressure ring 2 is formed by sequentially connecting the pressure ring blocks 21 end to end around a preset central line. Wherein, the extending direction of the preset central line is corresponding to the axial direction. The adjacent pressure ring segments 21 are detachably and hermetically connected.
The equipment to be subjected to pressure maintaining applied by the pressure maintaining tool for the excavating equipment is specifically a main drive 1, and in other embodiments, the equipment to be subjected to pressure maintaining can also be other excavating equipment.
Wherein, as shown in fig. 3, the pressure maintaining sealing ring 2 is circular, and in other embodiments, the pressure maintaining sealing ring can also be a square ring, and can be specifically arranged according to actual needs. In addition, the pressure maintaining sealing pressure ring 2 is formed by sequentially butting four pressure ring sub-blocks 21, and the four pressure ring sub-blocks 21 are of completely the same structure and are convenient to process. Of course, in other embodiments, the pressure maintaining sealing pressure ring 2 may also be formed by other numbers of pressure ring segments 21, for example, 8, and may be specifically determined according to the diameter of the main drive 1, so as to facilitate the operation of a person.
As shown in fig. 2, one axial end surface of the pressure ring segment 21 is a sealing surface 22, and the pressure ring segment 21 includes a magnetic portion. Under the state that clamping ring piecemeal 21 magnetism was inhaled in treating the pressurize equipment, sealed face 22 can compress tightly front pressurize sealing washer 3 in main drive 1. Tunnelling equipment such as main drive 1 usually has metal construction, through set up magnetism portion of inhaling on clamping ring piecemeal 21, can make the direct magnetism of clamping ring piecemeal 21 inhale fixedly on main drive 1, specifically, clamping ring piecemeal 21 relies on magnetic force and main drive 1 outer clamp ring terminal surface and sealed runway terminal surface to be connected.
In the embodiment, the pressure maintaining sealing pressure ring 2 is formed by splicing the split pressure ring sub-blocks 21, so that the pressure maintaining sealing pressure ring 2 can be stored in a separated state when not in use, and is convenient to transport; when the pressure maintaining device is installed on the pressure maintaining device, each pressure ring sub-block 21 can be magnetically attracted to the pressure maintaining device, the positions of the pressure ring sub-blocks 21 are adjusted respectively, and the pressure maintaining device is convenient to assemble.
Further, the front pressure retaining seal 3 is detachably attached to each sealing surface 22. Specifically, the front pressure maintaining sealing ring 3 is of an integrated structure, and each pressure ring block 21 can be detached from the front pressure maintaining sealing ring 3 respectively through detachable connection when being stored, so that the portable pressure maintaining sealing ring is more portable. During assembly, the front pressure maintaining sealing ring 3 is positioned on the main drive 1, and then the pressure ring sub-blocks 21 are sequentially installed along the extending direction of the front pressure maintaining sealing ring 3 to form the pressure maintaining sealing pressure ring 2.
Of course, in the embodiment in which the pressure retaining seal rings 3 are fixedly and non-detachably connected to the respective pressure retaining ring segments 21, since the pressure retaining seal rings 3 are directly detachably connected, the pressure retaining seal rings 2 can be folded by bending the pressure retaining seal rings 3, and a portable effect can be achieved. In other embodiments, the front pressure maintaining sealing ring 3 may be a segmented structure, each pressure ring segment 21 is fixedly provided with a front pressure maintaining sealing segment, and after the pressure maintaining sealing ring 2 is molded, the front pressure maintaining sealing segments are also butted to form the pressure maintaining sealing ring 2.
Further, a front positioning groove 23 extending in the circumferential direction is provided on the sealing surface 22. After the pressure maintaining sealing compression rings 2 are formed, the front positioning grooves 23 on the pressure maintaining sealing compression rings 2 are butted to form a front annular groove, and the front pressure maintaining sealing ring 3 is connected to the front annular groove. Through the spacing of positive ring channel, can improve the stability of positive pressurize sealing washer 3 installation on clamping ring piecing 21.
Furthermore, at least two front annular grooves are arranged on the pressure maintaining sealing ring 2 in a sleeved mode, gaps are arranged between every two adjacent front annular grooves along the radial direction, and front pressure maintaining sealing rings 3 are arranged in the front annular grooves respectively and can be sealed with different positions on the main drive 1. Of course, in other embodiments, only one front pressure-maintaining sealing ring 3 may be provided according to the actual sealing requirement. In this embodiment, two front ring grooves are formed in the pressure maintaining sealing ring 2, and the two front pressure maintaining sealing rings 3 respectively seal the end faces of the pressure maintaining sealing ring 2, the main drive 1 outer compression ring and the sealing track, so as to ensure the sealing performance of the sealing cavity.
Further, as shown in fig. 2, the circumferential end faces of the pressing ring segments 21 are respectively provided with a side positioning groove 24, and the side positioning grooves 24 of two adjacent pressing ring segments 21 are connected with one side pressure maintaining sealing strip 4 in a matching manner, wherein the corresponding side positioning groove 24 is filled with the side pressure maintaining sealing strip 4. Through the setting of side pressurize sealing strip 4, can reliably guarantee the leakproofness between the clamping ring piecing 21. Simultaneously, through the setting of side constant head tank 24, can also play the positioning action to adjacent clamping ring piecing 21 when assembling.
Further, on the pressing ring segment 21, the side positioning grooves 24 communicate with the respective front positioning grooves 23. Preferably, as shown in fig. 2, the side positioning grooves 24 are U-shaped grooves, and two free ends of the side positioning grooves 24 are respectively communicated with the two front positioning grooves 23. Because the side pressure maintaining sealing strip 4 is butted with the two front pressure maintaining sealing rings 3, the sealing performance between the sealing cavity of the main drive 1 and the pressing ring sub-block 21 can be further ensured. Of course, in other embodiments, side positioning slot 24 may also be a W-shaped or other shaped groove.
Further, the side pressure maintaining sealing strip 4 is detachably connected with the pressing ring partitioning block 21, so that the flexibility of storing parts is further improved.
Further, as shown in fig. 2, the seal surface 22 includes a first step surface 25, an abutting surface 26, and a second step surface 27 which are abutted in this order in the radial direction, and the first step surface 25 and the second step surface 27 are juxtaposed in the axial direction so that the seal surface 22 forms a stepped surface. The two front pressure-retaining seal rings 3 are respectively provided on the first step surface 25 and the second step surface 27. Through the setting of ladder face for pressurize sealing ring 2 is applicable to more having the main drive 1 of step face. Of course, in other embodiments, the sealing surface 22 may be configured as a flat surface.
Further, the adjacent pressing ring segments 21 are magnetically attached. Specifically, the clamping ring sub-block 21 is made of magnetic materials, namely, the clamping ring sub-block 21 is provided with magnetism at the whole position, the structure of the magnetic attraction main drive 1 and the structure of the magnetic attraction adjacent clamping ring sub-block 21 do not need to be arranged respectively, the magnetic attraction function can be directly completed, and the processing is convenient. Optionally, the pressure ring blocks 21 are made of neodymium iron boron permanent magnets or other magnets with stronger magnetic force, and through mechanical calculation, the pressure maintaining pressure of the tool is far greater than 10bar, so that the pressure maintaining experimental requirements of main drive 1 lip-shaped rubber seal and polyurethane seal can be met.
Further, adjacent pressure ring sub-blocks 21 are detachably fixed through fixing bolts 5, specifically, as shown in fig. 2 and 3, the pressure ring sub-blocks 21 further ensure the sealing performance between the pressure ring sub-blocks 21 through two fixing bolts 5, and the disassembly and the assembly are more convenient. Of course, in other embodiments, the adjacent pressure ring segments 21 may be detachably connected only by one of the magnetic attraction and the bolt connection, or the adjacent pressure ring segments 21 may also be fixedly connected by a clamping connection.
The working principle of the tool provided by the embodiment is as follows:
when the hanger-free installation is carried out, firstly, the front pressure maintaining sealing ring 3 is placed on the end faces of the main drive 1 outer pressing ring and the sealing runway, then two front annular grooves formed among the pressing ring blocks 21, the main drive 1 outer pressing ring and the end faces of the sealing runway are aligned to the front pressure maintaining sealing ring 3, and the pressing ring blocks 21 are sequentially spliced. Next, the side pressure-maintaining sealing strips 4 are placed in the side positioning grooves 24 between the press ring segments 21, and the splicing between the segments is completed. Finally, the pressing ring sub-block 21 is fixed by the fixing bolt 5, and the pressure maintaining tool is installed to complete the pressure maintaining experiment.
And (II) when the lifting appliance is installed, the pressure maintaining sealing pressure rings 2 are spliced well, and then the lifting appliance is installed on the end face of the main drive 1. Specifically, firstly, the compression ring blocks 21 are placed on a horizontal ground, then the side pressure maintaining sealing strips 4 are installed in the side positioning grooves 24 between the compression ring blocks 21, the compression ring blocks 21 are sequentially spliced, and then the front pressure maintaining sealing rings 3 are placed in two front annular grooves formed between the compression ring blocks 21 and the end faces of the compression ring and the sealing runway outside the main drive 1; next, adjusting and checking the positions of the pressure ring block 21, the side pressure maintaining sealing strips 4 and the front pressure maintaining sealing ring 3, fixing the pressure ring block 21 by the fixing bolts 5, and ensuring that the pressure ring block 21 compresses the side pressure maintaining sealing strips 4 and the front pressure maintaining sealing ring 3; and finally, hoisting the spliced pressure maintaining tool to the end face of the main drive 1 through a lifting appliance, and completing the installation of the pressure maintaining tool to perform a pressure maintaining experiment.
And (III) during disassembly, the fixing bolt 5 is disassembled firstly, then the compression ring blocks 21 are disassembled in sequence, and the side pressure maintaining sealing strip 4 and the front pressure maintaining sealing ring 3 are taken out during disassembly, so that the disassembly work is completed.
And (IV) during a pressure maintaining test, injecting a pressure maintaining medium into the channel of the main drive 1, and sequentially checking the sealing performance of the seal of the main drive 1. The pressing ring sub-block 21 and the self-existing outer sealing structure of the shield tunneling machine form a sealing cavity, the side pressure maintaining sealing strip 4 and the front pressure maintaining sealing ring 3 are pressed tightly through the synergistic effect of the magnetic force of the pressing ring sub-block 21 and the fixing bolt 5, and the sealing performance between the sealing cavity and the sub-block is guaranteed. Therefore, the pressure maintaining sealing medium is blocked by the pressure ring sub-block 21, the side pressure maintaining sealing strip 4 and the front pressure maintaining sealing ring 3, so that the pressure ring sub-block 21 cannot overflow, the pressure leakage phenomenon cannot be generated in the pressure maintaining test process, and the pressure maintaining test requirement of the main drive 1 is met.
The pressure maintaining tool for the heading equipment is simple in structure, compared with similar pressure maintaining tools, the pressure maintaining tool for the heading equipment is light in weight in a partitioning structure, has portability, does not need to be installed by a lifting appliance, is connected with a main drive through magnetic force, can effectively solve the problems that the existing pressure maintaining tool for the main drive of the shield machine is complex in structure and difficult to assemble and disassemble while providing reliable sealing performance, is suitable for field operation and pressure maintaining experiments in tunnels, and is low in labor cost during transportation and assembly; the front positioning groove 23 is connected with the side positioning groove 24, the compression ring block 21 compresses the side pressure maintaining sealing strip 4 and the front pressure maintaining sealing ring 3, and the sealing performance between the compression ring block 21 and a sealing cavity of the equipment can be guaranteed.
It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The pressure maintaining tool for the heading equipment provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A pressure maintaining tool for heading equipment is characterized by comprising a front pressure maintaining sealing ring (3) and at least two pressure ring sub-blocks (21); the pressure-maintaining sealing pressure ring (2) is formed by sequentially connecting the pressure ring blocks (21) end to end around a preset central line; the adjacent pressure ring sub-blocks (21) are detachable and are connected in a sealing manner; an axial end face of the pressing ring block (21) is a sealing face (22), the pressing ring block (21) comprises a magnetic portion, the pressing ring block (21) is magnetically attracted to a state of the pressure maintaining equipment, and the sealing face (22) can compress the front pressure maintaining sealing ring (3) to the pressure maintaining equipment.
2. A heading equipment pressure maintaining tool according to claim 1, wherein the front pressure maintaining seal ring (3) is detachably connected to each sealing surface (22).
3. The pressure maintaining tool for the heading equipment as claimed in claim 1, wherein the sealing surface (22) is provided with a front positioning groove (23) extending along the circumferential direction; after the pressure maintaining sealing compression rings (2) are molded, the front positioning grooves (23) on the pressure maintaining sealing compression rings (2) are butted to form a front annular groove, and the front pressure maintaining sealing ring (3) is connected to the front annular groove.
4. The pressure maintaining tool for the heading equipment as claimed in claim 3, wherein at least two of the front annular grooves are sleeved on the pressure maintaining sealing ring (2), and a gap is formed between every two adjacent front annular grooves along the radial direction.
5. The pressure maintaining tool for the heading equipment as claimed in claim 1, wherein the circumferential end faces of the pressing ring blocks (21) are respectively provided with a side positioning groove (24), and the side positioning grooves (24) of two adjacent pressing ring blocks (21) are matched and connected with one side pressure maintaining sealing strip (4).
6. The pressure maintaining tool for the heading equipment as claimed in claim 5, wherein the pressure ring segments (21) are provided with side positioning grooves (24) which are communicated with the front positioning grooves (23).
7. The pressure maintaining tool for the heading equipment as claimed in claim 6, wherein the side positioning groove (24) is a U-shaped groove, and two free ends of the side positioning groove (24) are respectively communicated with the two front positioning grooves (23).
8. The pressure maintaining tool for the heading equipment as claimed in claim 5, wherein the side pressure maintaining sealing strip (4) is detachably connected with the pressure ring sub-block (21).
9. The pressure maintaining tool for the heading device according to any one of claims 1 to 8, wherein adjacent pressure ring segments (21) are magnetically connected.
10. The pressure maintaining tool for the heading equipment as claimed in any one of claims 1 to 8, wherein adjacent pressure ring segments (21) are detachably fixed by fixing bolts (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849299.8A CN113567053A (en) | 2021-07-27 | 2021-07-27 | Pressure maintaining tool for heading equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849299.8A CN113567053A (en) | 2021-07-27 | 2021-07-27 | Pressure maintaining tool for heading equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113567053A true CN113567053A (en) | 2021-10-29 |
Family
ID=78167853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110849299.8A Pending CN113567053A (en) | 2021-07-27 | 2021-07-27 | Pressure maintaining tool for heading equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113567053A (en) |
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|---|---|---|---|---|
| CN101929229A (en) * | 2009-06-18 | 2010-12-29 | 李增清 | Veneer connecting structure and connecting piece |
| CN206554939U (en) * | 2017-02-16 | 2017-10-13 | 天津城建隧道股份有限公司 | A kind of new shield machine is hinged seal |
| CN207880079U (en) * | 2018-02-09 | 2018-09-18 | 苏州思丹孚钻具有限公司 | Tool for metallic packing ring installation |
| CN110683159A (en) * | 2019-09-27 | 2020-01-14 | 中国科学院高能物理研究所 | Splicing side wall structure of sealed container and sealed container with splicing side wall structure |
| CN210800462U (en) * | 2019-10-23 | 2020-06-19 | 江苏运通膨胀节制造有限公司 | Waterproof high-sealing prefabricated compensator |
| CN210920114U (en) * | 2019-11-25 | 2020-07-03 | 苏州嘉泰橡塑有限公司 | Rubber sealing ring |
| CN210948909U (en) * | 2019-11-27 | 2020-07-07 | 上海电气燃气轮机有限公司 | Cooling system, cold air chamber sealing structure and sealing partition plate of gas turbine |
| CN211602326U (en) * | 2020-02-26 | 2020-09-29 | 中铁工程服务有限公司 | Detachable main drive gas tightness detects frock |
| CN212899729U (en) * | 2020-07-20 | 2021-04-06 | 成都利合天邦科技有限公司 | Combined type oil seal structure for shaft |
-
2021
- 2021-07-27 CN CN202110849299.8A patent/CN113567053A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929229A (en) * | 2009-06-18 | 2010-12-29 | 李增清 | Veneer connecting structure and connecting piece |
| CN206554939U (en) * | 2017-02-16 | 2017-10-13 | 天津城建隧道股份有限公司 | A kind of new shield machine is hinged seal |
| CN207880079U (en) * | 2018-02-09 | 2018-09-18 | 苏州思丹孚钻具有限公司 | Tool for metallic packing ring installation |
| CN110683159A (en) * | 2019-09-27 | 2020-01-14 | 中国科学院高能物理研究所 | Splicing side wall structure of sealed container and sealed container with splicing side wall structure |
| CN210800462U (en) * | 2019-10-23 | 2020-06-19 | 江苏运通膨胀节制造有限公司 | Waterproof high-sealing prefabricated compensator |
| CN210920114U (en) * | 2019-11-25 | 2020-07-03 | 苏州嘉泰橡塑有限公司 | Rubber sealing ring |
| CN210948909U (en) * | 2019-11-27 | 2020-07-07 | 上海电气燃气轮机有限公司 | Cooling system, cold air chamber sealing structure and sealing partition plate of gas turbine |
| CN211602326U (en) * | 2020-02-26 | 2020-09-29 | 中铁工程服务有限公司 | Detachable main drive gas tightness detects frock |
| CN212899729U (en) * | 2020-07-20 | 2021-04-06 | 成都利合天邦科技有限公司 | Combined type oil seal structure for shaft |
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