CN116117717A - Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method - Google Patents
Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method Download PDFInfo
- Publication number
- CN116117717A CN116117717A CN202310062302.0A CN202310062302A CN116117717A CN 116117717 A CN116117717 A CN 116117717A CN 202310062302 A CN202310062302 A CN 202310062302A CN 116117717 A CN116117717 A CN 116117717A
- Authority
- CN
- China
- Prior art keywords
- positioning
- assembly
- pipeline
- plate
- locating plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004378 air conditioning Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The utility model provides a central air conditioning pipeline assembly location structure, assembly positioner and method, assembly location structure is including first locating plate and second locating plate and connect a plurality of double-screw bolts of first locating plate and second locating plate, first locating plate and second locating plate are semicircle annular, and the ring inboard is the location cambered surface that the pipeline assembly was fixed a position usefulness, first locating plate and second locating plate are equipped with a plurality of first through-holes and second through-holes respectively, the both ends of double-screw bolt are equipped with screw thread section and nut, the double-screw bolt both ends pass first through-hole and second through-hole respectively and lock in the outside that first locating plate and second locating plate are opposite by the nut so that first locating plate and the inboard centre gripping that second locating plate are opposite is at the both sides of waiting to take over mouthful and fix. The invention utilizes the positioning arc to carry out foolproof positioning assembly on the pipeline, improves the overall production efficiency, greatly reduces the operation difficulty and achieves zero deviation of assembly and positioning.
Description
Technical Field
The invention relates to the technical field of central air conditioner (integrated cold station) unit assembly, in particular to a central air conditioner pipeline assembly positioning structure, an assembly positioning device and a method.
Background
The traditional central air conditioner (integrated cold station) is obviously restricted by the prior art and the on-site actual construction condition due to the distributed arrangement of various devices, large occupied area, independent installation of the devices, multiple device interfaces and the installation process, and the device installation requirement is complicated, and the defects that the integration degree of the device installation is low and the following defects exist generally are mainly reflected:
1. the design layout of a central air conditioning (integrated cold station) unit is that a pipeline system and a host system are integrated, and the difficulty in welding, assembling and positioning is high due to the complexity and limitation of the unit, and the condition that a pipeline is not centered exists at an extension pipe orifice of the pipeline, so that stagnation is caused and the pipeline is required to be subjected to pipe bursting and reworking;
2. complexity: the central air conditioning (integrated cold station) unit has the advantages that pipelines are complicated, various pipe diameters are different, the related assembly modes have inconsistency, the pipe diameters of connecting pipes and the sizes of flanges are diversified, the difficulty of the on-site pipeline assembly positioning on the skill level of assembly is increased, and the complete centering cannot be achieved completely;
3. limitations: the central air conditioning (integrated cold station) unit is used for ensuring that space is used to the maximum, all components and parts in the container are compact in design layout, so that a box pipeline cannot be positioned on the unit, only the components can be preassembled in a offline mode, and then the pipeline is assembled, so that the requirement on the positioning accuracy of the whole container is more severe.
Disclosure of Invention
Aiming at the problems of non-centering and poor efficiency of the assembly positioning of the central air conditioner unit, the invention provides a central air conditioner pipeline assembly positioning structure, an assembly positioning device and a method, which reduce the difficulty of offline and online assembly operation, reduce the technical level requirements of assembly operators from the foolproof design of the assembly positioning structure and improve the assembly efficiency.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a central air conditioning pipeline assembly location structure, includes first locating plate and second locating plate and connects a plurality of double-screw bolts of first locating plate and second locating plate, first locating plate and second locating plate are semicircle annular, and the ring inboard is the location cambered surface that the pipeline assembly was fixed a position usefulness, first locating plate and second locating plate are equipped with a plurality of first through-holes and second through-holes respectively, the both ends of double-screw bolt are equipped with screw thread section and nut, the double-screw bolt both ends pass first through-hole and second through-hole respectively and lock in the outside that first locating plate and second locating plate are carried on the back mutually by the nut so that the inboard centre gripping that first locating plate and second locating plate are opposite is in the both sides of waiting to take over the mouth and fix.
Preferably, the annular center of the first positioning plate and the first through holes are the same in interval, so that the first through holes are distributed on the first positioning plate in a polar axis array.
Preferably, the first through holes are distributed on the first positioning plate in an equally-divided circumference mode by taking the center of the circular ring of the first positioning plate as a base point, and an equally-divided angle between two adjacent first through holes is 45 degrees.
Preferably, the positioning cambered surface of the second positioning plate is aligned with the positioning cambered surface of the first positioning plate, and the second through hole is aligned with the first through hole.
On the other hand, the invention adopts the following technical scheme: a central air conditioner pipeline assembling and positioning device comprises the central air conditioner pipeline assembling and positioning structure.
Preferably, the laser positioning mechanism further comprises a laser emitter which emits the laser positioning center and the laser positioning aperture towards the positioning plate, so that the laser positioning center and the laser positioning aperture are respectively overlapped with the circular ring center and the positioning cambered surface of the positioning plate.
On the other hand, the invention adopts the following technical scheme: a method for assembling and positioning a central air conditioner pipeline comprises the following steps:
preparing a first positioning plate and a second positioning plate with proper sizes, wherein the positioning cambered surface sizes of the first positioning plate and the second positioning plate are consistent with the surface sizes of the pipeline components to be assembled;
the first positioning plate and the second positioning plate are respectively arranged at two sides of the outlet position of the box body, and the studs are inserted to lock the nuts, so that the first positioning plate and the second positioning plate are clamped at the outlet position of the box body;
placing the pipeline component to be assembled on the positioning cambered surfaces of the first positioning plate and the second positioning plate, positioning and fixing the central position by utilizing a laser positioning mechanism, and horizontally measuring by using a horizontal ruler and a box body so that the central line position of the pipeline component to be assembled is on the same horizontal plane;
and assembling the positioned pipeline assembly, and then disassembling and assembling the positioning structure to complete the assembly and positioning of the central air conditioner pipeline.
Preferably, the first positioning plate and the second positioning plate are prepared into a plurality of pieces according to various pipe diameters of the pipeline assembly to be assembled, and a circular positioning tool is formed by overlapping and connecting the first through hole and the second through hole, so that horizontal/vertical assembly is performed.
Preferably, in the assembling and positioning step, the box pipe orifice is assembled from the box pipe orifice position to the inside of the box, the bent pipe and the straight pipe are mutually matched when being assembled and positioned, and then the box pipe orifice coaxiality is positioned firstly and then the box inside is assembled to ensure the box pipe orifice position coaxiality and ensure the verticality of a pipeline in the box.
Preferably, in the assembling and positioning step, when the pipeline component to be assembled is an in-line pipeline, the positioning cambered surfaces of the first positioning plate and the second positioning plate are directly used for assembling on the box body, so that the positioning is facilitated.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes the positioning arc to carry out foolproof positioning assembly on the pipeline, improves the overall production efficiency, greatly reduces the operation difficulty, achieves zero deviation of assembly and positioning, avoids unqualified products from flowing out, stops post-sale complaints, and improves the product image of a company.
According to the invention, a plurality of first positioning plates and second positioning plates can be arranged according to actual conditions, and then the first through holes and the second through holes are used for overlapping positioning and fixing, so that the circular positioning is assembled into a whole, and the connecting pipes with various pipe diameters can be horizontally and vertically assembled.
In the process of assembling and positioning the central air conditioner pipeline, the invention is locked at the pipe orifice position, and then the laser projector is used for positioning the bent center position and then fixing, so that the central lines of all pipe orifices of the whole pipeline assembly are kept horizontal. The fool-proof positioning assembly of the positioning cambered surface of the positioning plate is utilized, one end of the pipeline is positioned firstly, coaxiality of the pipeline can be adjusted conveniently, reworking caused by the fact that the pipeline is not positioned at the central position is avoided, operation difficulty is greatly reduced, and production efficiency is increased by 60-70%.
Compared with the traditional assembly scheme that the pipeline is preassembled firstly and then preassembled on line, the invention can be directly preassembled on line, and then the pipeline is assembled integrally by adjusting the pipeline into the box body by the crane, thereby improving the production efficiency.
Drawings
For a clearer description of the technical solutions, the drawings that are required to be used in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Marked in the figure as:
100: a first positioning plate; 200: a second positioning plate; 300: a stud; 400: the center of the circular ring; 110: positioning the cambered surface; 120: a first through hole; 310: a nut; 410: an array of polar axes.
Detailed Description
In order that the manner in which a fully and completely understood embodiment of the invention may be readily understood, it is intended that the invention be further described in connection with the accompanying drawings, in which it is to be understood that the embodiments described are merely illustrative of some of the invention and that all other embodiments may be made by those skilled in the art without the benefit of the inventive faculty.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that 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. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As shown in fig. 1 and 2, a central air conditioner pipeline assembling and positioning structure comprises a first positioning plate 100, a second positioning plate 200 and a plurality of studs 300 connected with the first positioning plate 100 and the second positioning plate 200, wherein the first positioning plate 100 and the second positioning plate 200 are semi-circular, the inner side of a circular ring is a positioning cambered surface 110 for pipeline assembling and positioning, the first positioning plate 100 and the second positioning plate 200 are respectively provided with a plurality of first through holes 120 and second through holes, two ends of each stud 300 are provided with thread sections and nuts 310, and two ends of each stud 300 respectively penetrate through the first through holes 120 and the second through holes and are locked on the outer sides of the first positioning plate 100 and the second positioning plate 200 in opposite directions by the nuts 310 so that the inner sides of the first positioning plate 100 and the second positioning plate 200 are clamped on two sides of a port to be connected and fixed.
The distances between the circular center 400 of the first positioning plate 100 and the plurality of first through holes 110 are the same, so that the plurality of first through holes 120 are distributed on the first positioning plate in a polar axis array 410, i.e. the plurality of first through holes are uniformly distributed on the same circular track configured by taking the circular center as the center of a circle. As a further preferable solution of this embodiment, the first through holes 120 are distributed on the first positioning plate 100 in a form of equally divided circumferences with the circular center 400 of the first positioning plate 100 as a base point, preferably, an equally divided angle β between two adjacent first through holes is 45 °, and an included angle γ between the first through holes near two ends of the first positioning plate and an end edge is 22.5 °, so that the plurality of first through holes are symmetrically distributed on both sides.
The second positioning plate has the same structure as the first positioning plate, so that the positioning cambered surface of the second positioning plate is aligned with the positioning cambered surface of the first positioning plate, and the second through hole is aligned with the first through hole.
In the embodiment, the first positioning plate, the second positioning plate and the stud are combined to form an assembly positioning structure, the pipeline is subjected to foolproof positioning assembly by utilizing the positioning arc, the overall production efficiency is improved, the operation difficulty is greatly reduced, zero deviation of assembly positioning is achieved, unqualified products are prevented from flowing out, after-sales complaints are stopped, and the product image of a company is improved.
The first locating plate and the second locating plate of this embodiment can set up a plurality ofly according to actual conditions, then overlap the location fixed with first through-hole and second through-hole, assemble into whole a circular location and can satisfy the takeover of multiple pipe diameter and carry out horizontal vertical assembly.
In another aspect, the present invention provides another embodiment:
a central air conditioner pipeline assembling and positioning device comprises the central air conditioner pipeline assembling and positioning structure in the embodiment.
The laser positioning mechanism comprises a laser transmitter for transmitting the laser positioning center and the laser positioning aperture towards the positioning plate, so that the laser positioning center and the laser positioning aperture are respectively overlapped with the circular ring center and the positioning cambered surface of the positioning plate.
In the embodiment, the pipe is locked at the pipe orifice position in the process of assembling and positioning the central air conditioner pipeline, and then the curved center position is positioned by using a laser projector and then fixed, so that the central lines of all pipe orifices of the whole pipeline assembly are kept horizontal.
The embodiment utilizes the foolproof positioning assembly of the positioning cambered surface of the positioning plate to position one end of the pipeline, so that the coaxiality of the pipeline can be conveniently adjusted, reworking caused by the fact that the pipeline is not positioned at the central position is avoided, the operation difficulty is greatly reduced, and the production efficiency is increased by 60-70%.
In another aspect, the present invention provides another embodiment:
a method for assembling and positioning a central air conditioner pipeline comprises the following steps:
preparing a first positioning plate and a second positioning plate with proper sizes, wherein the positioning cambered surface sizes of the first positioning plate and the second positioning plate are consistent with the surface sizes of the pipeline components to be assembled;
the first positioning plate and the second positioning plate are respectively arranged at two sides of the outlet position of the box body, and the studs are inserted to lock the nuts, so that the first positioning plate and the second positioning plate are clamped at the outlet position of the box body;
placing the pipeline component to be assembled on the positioning cambered surfaces of the first positioning plate and the second positioning plate, positioning and fixing the central position by utilizing a laser positioning mechanism, and horizontally measuring by using a horizontal ruler and a box body so that the central line position of the pipeline component to be assembled is on the same horizontal plane; the first positioning plate and the second positioning plate are used for preparing a plurality of plates according to various pipe diameters of the pipeline components to be assembled, and a circular positioning tool is formed by overlapping and connecting the first through holes and the second through holes for horizontal/vertical assembly.
And assembling the positioned pipeline assembly, and then disassembling and assembling the positioning structure to complete the assembly and positioning of the central air conditioner pipeline.
As a further improvement of the present embodiment: in the assembly positioning step, the box pipe orifice is assembled from the box pipe orifice position to the inside of the box, the bent pipe and the straight pipe are mutually matched during assembly positioning, and the box pipe orifice coaxiality is positioned first and then the inside of the box is assembled to ensure the box pipe orifice position coaxiality and ensure the verticality of a pipeline in the box.
As a further improvement of the present embodiment: in the assembly positioning step, when the pipeline component to be assembled is a direct-insertion pipeline, the positioning cambered surfaces of the first positioning plate and the second positioning plate are directly used for assembly on the box body, so that the positioning is facilitated.
The disassembly and assembly of the pipeline are reduced, the traditional assembly scheme is that preassembling is firstly performed and then preassembled on line, the embodiment is converted into the method that the preassembling can be directly performed on line, and then the travelling crane is used for transferring the box body to perform integral assembly, so that the production efficiency is improved;
the positioning cambered surface is used for positioning the pipe connecting assembly and the pipe connecting assembly, the pipe connecting and pipe connecting plug-in type assembly, the pipe connecting elbow assembly and other positioning requirements, the difficulty of offline and online assembly operation is reduced, the fool-proof design of the assembly positioning structure is adopted, the skill level requirement of assembly operators is reduced, the circular positioning tool is assembled into a whole, the pipe connecting assembly can be suitable for pipe connecting assembly with various sizes and pipe diameters, one end is positioned by using the positioning cambered surface, the coaxiality of a pipeline can be conveniently adjusted, reworking caused by the fact that the pipeline is not positioned at the central position is avoided, and the air outlet assembly efficiency in the production process is improved by 60-70%.
The foregoing disclosure is merely illustrative of one or more of the preferred embodiments of the present invention and is not intended to limit the scope of the invention in any way, as it is intended to cover all modifications, variations, uses, or equivalents of the invention that fall within the spirit and scope of the invention.
Claims (10)
1. A central air conditioning pipeline assembly location structure, its characterized in that: including first locating plate and second locating plate and connect a plurality of double-screw bolts of first locating plate and second locating plate, first locating plate and second locating plate are the semicircle annular, and the ring inboard is the location cambered surface that the pipeline assembly was fixed a position usefulness, first locating plate and second locating plate are equipped with a plurality of first through-holes and second through-holes respectively, the both ends of double-screw bolt are equipped with screw thread section and nut, the double-screw bolt both ends pass first through-hole and second through-hole respectively and lock in the outside that first locating plate and second locating plate are on the back of the body by the nut so that first locating plate and the inboard centre gripping that the second locating plate are opposite is at the both sides of waiting to take over the mouth and fix.
2. The central air conditioner pipeline assembly positioning structure according to claim 1, wherein: the distances between the center of the circular ring of the first positioning plate and the plurality of first through holes are the same, so that the plurality of first through holes are distributed on the first positioning plate in a polar axis array.
3. The central air conditioner pipeline assembly positioning structure according to claim 2, wherein: the first through holes are distributed on the first positioning plate in an equally-divided circumferential mode by taking the center of the circular ring of the first positioning plate as a base point, and an equally-divided angle between two adjacent first through holes is 45 degrees.
4. A central air conditioning duct assembly positioning structure according to claim 2 or 3, characterized in that: the positioning cambered surface of the second positioning plate is aligned with the positioning cambered surface of the first positioning plate, and the second through hole is aligned with the first through hole.
5. A central air conditioner pipeline assembly positioning device is characterized in that: a central air conditioning duct assembly positioning structure comprising the central air conditioning duct assembly positioning structure of any of claims 1-4.
6. The central air conditioner pipeline assembly positioning device according to claim 5, wherein: the laser positioning mechanism comprises a laser transmitter for transmitting the laser positioning center and the laser positioning aperture towards the positioning plate, so that the laser positioning center and the laser positioning aperture are respectively overlapped with the circular ring center and the positioning cambered surface of the positioning plate.
7. The central air conditioner pipeline assembling and positioning method is characterized by comprising the following steps of:
preparing a first positioning plate and a second positioning plate with proper sizes, wherein the positioning cambered surface sizes of the first positioning plate and the second positioning plate are consistent with the surface sizes of the pipeline components to be assembled;
the first positioning plate and the second positioning plate are respectively arranged at two sides of the outlet position of the box body, and the studs are inserted to lock the nuts, so that the first positioning plate and the second positioning plate are clamped at the outlet position of the box body;
placing the pipeline component to be assembled on the positioning cambered surfaces of the first positioning plate and the second positioning plate, positioning and fixing the central position by utilizing a laser positioning mechanism, and horizontally measuring by using a horizontal ruler and a box body so that the central line position of the pipeline component to be assembled is on the same horizontal plane;
and assembling the positioned pipeline assembly, and then disassembling and assembling the positioning structure to complete the assembly and positioning of the central air conditioner pipeline.
8. The method for assembling and positioning the central air conditioner pipeline according to claim 7, wherein the method comprises the following steps: the first positioning plate and the second positioning plate are used for preparing a plurality of plates according to various pipe diameters of the pipeline components to be assembled, and a circular positioning tool is formed by overlapping and connecting the first through holes and the second through holes for horizontal/vertical assembly.
9. The method for assembling and positioning the central air conditioner pipeline according to claim 7, wherein the method comprises the following steps: in the assembly positioning step, the box pipe orifice is assembled from the box pipe orifice position to the inside of the box, the bent pipe and the straight pipe are mutually matched during assembly positioning, and the box pipe orifice coaxiality is positioned first and then the inside of the box is assembled to ensure the box pipe orifice position coaxiality and ensure the verticality of a pipeline in the box.
10. The method for assembling and positioning the central air conditioner pipeline according to claim 7, wherein the method comprises the following steps: in the assembly positioning step, when the pipeline component to be assembled is a direct-insertion pipeline, the positioning cambered surfaces of the first positioning plate and the second positioning plate are directly used for assembly on the box body, so that the positioning is facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310062302.0A CN116117717A (en) | 2023-01-17 | 2023-01-17 | Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310062302.0A CN116117717A (en) | 2023-01-17 | 2023-01-17 | Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116117717A true CN116117717A (en) | 2023-05-16 |
Family
ID=86296897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310062302.0A Pending CN116117717A (en) | 2023-01-17 | 2023-01-17 | Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116117717A (en) |
-
2023
- 2023-01-17 CN CN202310062302.0A patent/CN116117717A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112692482B (en) | Positioning and mounting method for air branch pipe of scavenging header supercharger | |
| CN219054167U (en) | Central air conditioning pipeline assembly positioning structure and assembly positioning device | |
| CN116117717A (en) | Central air conditioner pipeline assembling and positioning structure, assembling and positioning device and method | |
| CN201579575U (en) | Axial pipe orifice counterpart mounting clamp | |
| CN102528365B (en) | Big-diameter force balancing corrugated pipe compensator assembling device and manufacture method of compensator | |
| CN206305692U (en) | A kind of device for installing muffler pipe | |
| CN205817171U (en) | A kind of quick group of valve body is to device | |
| JP5350045B2 (en) | Attaching the cylindrical universal joint | |
| CN211219454U (en) | Prefabricated assembly tool for external pipelines of tank container | |
| CN207261857U (en) | Pipeline connecting assembly, pipeline structure and air conditioner | |
| CN206346817U (en) | A kind of device for being used to install exhaust hose and hard tube | |
| CN111871916A (en) | Medium-sized bearing ring detects cleaning table | |
| CN105666001A (en) | Welding fixture suitable for long pipe flange | |
| CN206263499U (en) | A kind of servicing unit being connected with hard tube for exhaust hose | |
| CN207344045U (en) | A kind of flanged joint pipeline welding tooling | |
| CN219082436U (en) | Pipeline positioning device of aircraft air conditioning system | |
| CN208713233U (en) | A kind of irregular pipe positioning device for welding equipment | |
| CN219465292U (en) | Be used for welded auxiliary positioning frock of valve body | |
| CN110961852A (en) | Spot welding device with graduation regulation | |
| CN208473312U (en) | A kind of pump truck conveying pipe bend and its fixed device | |
| CN217272617U (en) | Fastening mechanism for air pipe joint | |
| CN215280601U (en) | A guiding orientation frock for liquid rocket engine clamp support | |
| CN201815827U (en) | Pipeline assembly mould | |
| CN112572826B (en) | Positioning structure and positioning method for aircraft fuel system guide pipe | |
| CN220851152U (en) | Fluid pipeline installation joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |