Movable lining core rod knocking repair metal conduit working vehicle
By designing a mobile liner mandrel repair work cart for metal conduits, the problems of large footprint and poor flexibility in existing technologies have been solved. This enables stable storage of liner mandrels and efficient repair of surface defects in metal conduits, thereby improving repair efficiency and quality.
Patent Information
- Application Number
- CN202520274423.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In the existing technology, the workbench for repairing metal conduits with inner lining mandrels occupies a large area and has poor flexibility. Furthermore, the vise clamping method is prone to damaging the inner lining mandrel, making it difficult to meet the needs of rapid transfer in small spaces and efficient repair of surface pits and elliptical defects in metal conduits.
A mobile metal conduit repair cart with inner lining mandrel is designed. It adopts a multi-layer operating shelf and a mobile frame. The bracket is provided with a placement slot. The frame is formed by the combination of square and rectangular tubes to form a frame structure. The end of the bracket has stepped grooves and V-shaped slots. The bottom has a storage box and wheels. The bracket is made of silicone. The end of the inner lining mandrel has a hemispherical head structure, which realizes the stable storage and flexible movement of the inner lining mandrel.
It improves the space utilization and flexibility of the work vehicle, reduces site occupation, reduces labor intensity and mechanical damage, and improves repair efficiency and quality.
Smart Images

Figure CN223720912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aviation parts repair technical field more specifically relates to a portable inner lining core rod knocks repair metal conduit working car. BACKGROUND
[0002] Metal conduit has extremely important position on the aircraft hydraulic, fuel pipeline system, and due to its special material characteristics (low strength, good ductility), size characteristics (thin wall is less than or equal to 1.2mm), structural characteristics (circular cross section), often in disassembly, assembly and service environment will produce local surface deformation, thereby producing surface pit, pipe body ovality defects, it is difficult to meet the use requirement.For the conduit with the characteristics of few curved sections and small curvature, the inner lining core rod knocking repair method can be used to repair the surface pit and pipe body ovality defects.
[0003] After investigating the inner lining core rod knocking conduit working condition of each aviation repair industry, at present, each industry utilizes vise to clamp inner lining core rod on special workbench to carry out surface pit, pipe body ovality defect repair operation, and the whole working occupies large area and has poor flexibility, and the clamping mode of vise can also cause the damage of the outer surface of inner lining core rod.
[0004] Therefore, at present, there is an urgent need for a working car that can realize inner lining core rod knocking operation and be convenient to transfer to meet the production needs. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model aims at providing a working platform capable of realizing inner lining core rod knocking operation, so as to realize the repair of metal conduit surface pit and pipe body ovality defects in smaller space and fast transfer.
[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A portable inner lining core rod knocks repair metal conduit working car, comprising: movable frame body;The frame body has multiple operation layer frames;Further comprising: bracket;
[0008] The bracket is horizontally placed on the operation layer frame, and each operation layer frame is provided with at least two brackets, and the brackets on each operation layer frame are arranged in parallel;The bracket is provided with a placing notch, and the placing notches of the multiple brackets on each operation layer frame are one-to-one corresponding, so that the corresponding placing notches can be placed with inner lining core rods for knocking repair of metal conduit.
[0009] Through the technical scheme, the multi-layer operation layer frame of the utility model makes the work vehicle be able to place more inner lining mandrels in limited space, meets the storage demand of inner lining mandrels with different diameters and lengths, improves the space utilization of the work vehicle, and also facilitates multi-person operation. The mobility of the work vehicle enables the operator to flexibly move the work vehicle to different work sites according to actual work demand, reduces the inconvenience caused by fixed work sites, and improves the flexibility and efficiency of work.
[0010] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the frame body is formed by a square tube combination into a frame structure, each operation layer frame is a rectangular frame structure, and the two ends of the bracket are arranged between the opposite two edges of the rectangular frame structure.
[0011] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the two ends of the bracket have stepped grooves, and the stepped grooves are lapped on the edges of the rectangular frame structure.
[0012] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the placing notch is a V-shaped notch.
[0013] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the caliber of the plurality of V-shaped notches on each bracket is different.
[0014] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the bottom of the frame body has a storage box, and the storage box is connected with a drawer.
[0015] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the bottom of the storage box is provided with walking wheels at four corners.
[0016] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, one side of the upper part of the frame body is provided with a moving handle.
[0017] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the contact surface of the bracket and the inner lining mandrel is made of silica gel.
[0018] Preferably, in the above-mentioned movable inner lining mandrel knock repair metal conduit work vehicle, the two ends of the inner lining mandrel are in a hemispherical head structure.
[0019] Compared with the prior art, the movable lining core rod knock repair metal conduit working vehicle provided by the utility model has the advantages that the lining core rod knock repair metal conduit operation can be realized on the working vehicle, the site area requirement is small and the maneuverability is high during the storage and transfer process, the production site occupation is reduced, the working efficiency is improved, the labor intensity and surface mechanical damage during the lining core rod carrying and turnover process are reduced, and the economic benefit and quality benefit are remarkable. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only the embodiments of the present utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.
[0021] Figure 1 The drawing is the structural schematic view of the movable lining core rod knock repair metal conduit working vehicle provided by the present utility model.
[0022] Figure 2 The drawing is the structural schematic view of the bracket provided by the present utility model.
[0023] Figure 3 The drawing is the structural schematic view of the lining core rod provided by the present utility model.
[0024] Among them:
[0025] 1-carriage body;
[0026] 11-operation layer frame; 12-storage box; 13-drawer; 14-traveling wheel; 15-moving handle;
[0027] 2-bracket;
[0028] 21-placing notch; 22-stair groove;
[0029] 3-lining core rod;
[0030] 31-hemispherical head structure. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in combination with the drawings in the embodiments of the present utility model, and obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the present utility model.
[0032] Referring to the drawings Figure 1 to the drawings Figure 3 The utility model discloses a movable inner liner mandrel knock -repair metal conduit working car, include: movable frame body 1, frame body 1 has multilayer operation layer frame 11, still include: bracket 2,
[0033] Bracket 2 is placed on operation layer frame 11, and each operation layer frame 11 is equipped with at least two brackets 2, and the bracket 2 on each operation layer frame 11 is arranged in parallel, and the bracket 2 has the placing notch 21, and the placing notch 21 of multiple brackets 2 on each operation layer frame 11 is one to one, so that the corresponding placing notch 21 can be placed for the inner liner mandrel 3 of knock -repair metal conduit.
[0034] In order to further optimize the above technical scheme, the frame body 1 is formed by square tube combination, each operation layer frame 11 is rectangular frame structure, and the two ends of the bracket 2 are arranged between the opposite two edges of the rectangular frame structure. The frame structure formed by square tube combination has high strength and stability, can bear larger weight and external force, and ensures the stability and safety of the working car in the use process. The structure characteristics of the square tube make the assembly and disassembly of the frame body and the operation layer frame more convenient and fast, facilitate the transportation and storage of the working car, and reduce the transportation and storage cost. The cooperation of the bracket with the frame body is more compact, can adapt to inner liner mandrels of different sizes, and enhances the versatility and adaptability of the working car.
[0035] In order to further optimize the above technical scheme, the two ends of the bracket 2 have stepped grooves 22, and the stepped grooves 22 are lapped on the edges of the rectangular frame structure. The design of the stepped groove makes the bracket more stably lapped on the edge of the rectangular frame structure, avoids the loosening or displacement of the bracket in the use process, and improves the stability and reliability of the working car. The structure of the stepped groove facilitates the positioning and adjustment of the bracket on the rectangular frame, and the operator can quickly adjust the position of the bracket as required to adapt to inner liner mandrels of different sizes, thereby improving the flexibility and efficiency of the work. Through the lapping of the stepped groove and the rectangular frame, the connection strength between the bracket and the frame body is enhanced, and the overall structural strength of the working car is further improved.
[0036] In order to further optimize the above technical scheme, the placing notch 21 is a V-shaped notch. The V-shaped notch can adapt to inner liner mandrels of different diameters, so that the working car can place inner liner mandrels of multiple specifications at the same time, and the versatility and applicability of the working car are improved. The shape of the V-shaped notch can clamp the inner liner mandrel, prevent it from rolling on the bracket, ensure the stability of the inner liner mandrel in the placing and using process, and avoid the safety hazard caused by rolling. The design of the V-shaped notch makes the taking and placing of the inner liner mandrel more convenient, and the operator can easily put or take the inner liner mandrel into or out of the notch, thereby improving the work efficiency.
[0037] To further optimize the above technical solutions, the caliber of the plurality of V-shaped notches on each bracket 2 is different. The V-shaped notches with different calibers can meet the placement requirements of inner liner mandrels with different diameters, so that the work trolley can store inner liner mandrels of multiple specifications at the same time, improving the versatility and applicability of the work trolley. By reasonably designing V-shaped notches with different calibers, inner liner mandrels can be more efficiently stored in limited space, avoiding space waste caused by single caliber notches, and further improving the space utilization rate of the work trolley. The operator can quickly find the appropriate notch to place or take the inner liner mandrel according to the diameter of the required inner liner mandrel, reducing the time to find the appropriate inner liner mandrel and improving work efficiency.
[0038] To further optimize the above technical solutions, the bottom of the trolley body 1 has a storage box 12, and the storage box 12 is connected with a drawer 13. The storage box and the drawer provide additional storage space for the work trolley, which can be used to store repair tools, spare inner liner mandrels and other related materials, making the work site more tidy and orderly. The closed drawer can protect the stored tools and materials from dust, debris and other contaminants or damage, prolonging the service life of the tools and materials. The operator can conveniently take the required tools and materials on the work trolley, reducing the time wasted by frequent trips to the tool storage area, and improving work efficiency.
[0039] To further optimize the above technical solutions, the bottom of the storage box 12 is provided with walking wheels 14 at the four corners. The installation of the walking wheels makes the movement of the work trolley more flexible and convenient, and the operator can easily push the work trolley to the required work position, reducing the labor intensity when moving the work trolley. The mobility of the work trolley is improved, so that the work trolley can quickly respond to changes in work requirements, improving work efficiency. The walking wheels can adapt to different ground conditions, allowing the work trolley to move flexibly in various working environments, enhancing the applicability of the work trolley.
[0040] To further optimize the above technical solutions, the upper side of the trolley body 1 has a moving handle 15.
[0041] To further optimize the above technical solutions, the contact surface of the bracket 2 and the inner liner mandrel 3 is made of silicone. The silicone material has good softness and elasticity, which can avoid mechanical friction between the inner liner mandrel and the contact surface of the bracket during placement and use, thereby preventing scratches, wear and other damage on the surface of the inner liner mandrel, and ensuring the surface quality of the inner liner mandrel.
[0042] To further optimize the above technical solutions, the two ends of the liner mandrel 3 are in a hemispherical head structure 31. The end design of the hemispherical head structure makes it easier for the liner mandrel to be inserted into the inner cavity of the metal conduit and better positioned in contact with the concave or elliptical part of the conduit inner cavity, improving the accuracy and efficiency of the knock repair work. The hemispherical head structure can disperse stress and avoid stress concentration caused by the sharp end in contact with the conduit inner cavity, thereby reducing damage to the conduit inner wall and improving repair quality. The relatively smooth end of the hemispherical head structure reduces the risk of accidental injury to the operator during operation due to the sharp end, improving the safety of the work.
[0043] During the knock repair of the metal conduit liner mandrel, according to the minimum inner diameter of the tube cavity formed by the surface concave of the metal conduit and the tube body ellipse, a liner mandrel 3 with a corresponding diameter is selected and placed on the bracket 2. The bracket 2 has a V-shaped groove structure that can hold the liner mandrel 3 to prevent it from rolling flat. The bracket 2 is made of silicone material, and there is no mechanical friction damage between the outer surface of the liner mandrel 3 and the bracket 2. The liner mandrel 3 is inserted into the inner cavity of the metal conduit until the end arc surface of the liner mandrel 3 contacts the inner cavity position of the surface concave and the tube body ellipse, and then the insertion is stopped. A bakelite hammer is used to repeatedly knock the surface concave and tube body ellipse position on the outer surface of the metal conduit until the process requirements of the conduit surface concave depth and cross-sectional roundness are met, and then the knocking is stopped. After the work is completed, the exposed liner mandrel 3 is stored in the closed drawer 13. The walking wheel 14 and the moving handle 15 are used to push the liner mandrel knock repair metal conduit work vehicle to the designated parking position.
[0044] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.
[0045] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.
Claims
1. A mobile, lined mandrel knockdown pipe mill, comprising: Movable frame body (1); characterized in that: the frame body (1) has a plurality of operation layer shelves (11); further comprising: a bracket (2); The bracket (2) is placed across the operation layer shelf (11), each operation layer shelf (11) is provided with at least two brackets (2), and the brackets (2) on each operation layer shelf (11) are arranged in parallel; the bracket (2) is provided with a placing notch (21), and the placing notches (21) of the plurality of brackets (2) on each operation layer shelf (11) are one-to-one corresponding, so that the corresponding placing notches (21) can place a lining mandrel (3) for knocking and repairing a metal pipe.
2. A mobile in-line skelp pipe mill train as defined in claim 1 wherein, The frame body (1) is formed by combining square tubes to form a frame structure, each operation layer shelf (11) is a rectangular frame structure, and the two ends of the bracket (2) are arranged between the opposite two edge sides of the rectangular frame structure.
3. A mobile, lined mandrel pipe mill as defined in claim 2 wherein, The two ends of the bracket (2) are provided with stepped grooves (22) which are lapped on the edges of the rectangular frame structure.
4. A mobile, lined mandrel pipe mill as defined in claim 1 wherein, The placing notch (21) is a V-shaped notch.
5. A mobile, lined mandrel pipe mill as defined in claim 4 wherein, The caliber of the plurality of V-shaped notches on each bracket (2) is different.
6. A mobile, lined mandrel pipe mill as defined in claim 1 wherein, The bottom of the frame body (1) is provided with a storage box (12), and the storage box (12) is connected with a drawer (13).
7. A mobile liner mandrel pipe mill as defined in claim 6 wherein, The bottom corners of the storage box (12) are provided with traveling wheels (14).
8. A mobile, lined mandrel pipe mill as defined in claim 1 wherein, One side of the upper part of the frame body (1) is provided with a moving handle (15).
9. A portable liner mandrel pipe mill as defined in claim 1 wherein, The contact surface of the bracket (2) and the lining mandrel (3) is made of silica gel material.
10. A portable liner mandrel pipe mill as defined in claim 1 wherein, The two ends of the lining mandrel (3) are provided with a hemispherical head structure (31).