CN108482402B - Self-locking type electric heating substrate for rail transit vehicle - Google Patents
Self-locking type electric heating substrate for rail transit vehicle Download PDFInfo
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- CN108482402B CN108482402B CN201810569935.XA CN201810569935A CN108482402B CN 108482402 B CN108482402 B CN 108482402B CN 201810569935 A CN201810569935 A CN 201810569935A CN 108482402 B CN108482402 B CN 108482402B
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- Prior art keywords
- male
- outer side
- board
- self
- side edge
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- 238000005485 electric heating Methods 0.000 title claims abstract 6
- 239000000758 substrate Substances 0.000 title claims abstract 6
- 238000007789 sealing Methods 0.000 claims abstract 5
- 239000003292 glue Substances 0.000 claims abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 3
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 239000011162 core material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/10—Floors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0036—Means for heating only
- B61D27/0045—Electric heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a self-locking type electric heating substrate for a rail transit vehicle, and belongs to the technical field of safety of rail transit vehicles. The frames of the mother board and the male board are special-shaped hollow aluminum profiles, the lower surface of the outer side edge of the cross section of the mother board is of a three-stage ladder structure, the upper and lower surfaces of the inner side are of a two-stage ladder structure, the outer side edge of the cross section of the male board is provided with a boss structure, the top end of the boss is provided with a male buckle, and the upper and lower surfaces of the inner side of the male board are of a two-stage ladder structure; the lower surface of the second-stage ladder structure at the outer side edge of the mother board is connected with the lower surface structure of the boss structure at the outer side edge of the male board through a lock tongue body with a female buckle at the end part; a sealing elastic glue is arranged between the upper surface of the boss structure of the outer side of the male plate and the lower surface of the primary step structure of the outer side of the mother plate; the right side of the hollow section bar of the motherboard frame is provided with a countersunk through hole penetrating through the second step structure, and the lower part of the screw rod penetrates through the countersunk through hole to be fixed with the lock tongue body; an elastic supporting block is arranged between the lower surface of the male plate and the chassis section bar of the car body.
Description
Technical Field
The invention belongs to the technical field of reliability, light weight and safety of rail transit vehicles, and particularly relates to a rail transit vehicle structure.
Background
Along with the continuous improvement of living environment and living style, higher requirements are put forward on the comfort and safety of the passenger room of the railway vehicle, the development direction of more humanization, modularization, energy conservation and environmental protection is more and more favored by the country and the common people, and the great development of various large-rail transportation enterprises is also obtained. The traditional heating device for the passenger room of the railway vehicle has the phenomenon of uneven heating temperature, and the lower part of the side wall is exposed to occupy the space of the passenger room; in extremely cold weather, the cold phenomenon of passenger's foot can not be solved to the air conditioner heating method. The electric heating floor has the greatest advantages that the floor and the electric heating device are integrated, the whole is attractive and coordinated, the space utilization rate and the comfort level of the passenger room are improved, and meanwhile, the electric heating floor has the effects of high efficiency, sound insulation, noise reduction, heat preservation, energy conservation and environmental protection.
The traditional honeycomb floor or plywood is mostly connected by lap joint and screws, the installation accuracy requirement is high, the number of related parts is large, the sealing performance and the vibration reduction effect are poor, and therefore, an efficient and safe electric heating floor installation mode is necessarily an important research subject. Chinese patent No. CN 202644931U describes a self-locking floor, which comprises a floor and a base, wherein each floor has a mounting groove on its bottom surface, and at least one upward protruding buckle is provided on the base corresponding to each floor, and the buckle slides into and is clamped in the mounting groove, and the floor is fixed to the base. The structure is simple, the problems of connection, fixation and sealing between the floor blocks are not solved, the integral bearing performance and the vibration reduction effect are poor, the floor mounting groove is easy to be separated from the buckle under the vibration condition, and the safety and reliability effect of complete self-locking cannot be realized. Chinese patent No. CN 102312543A describes a self-locking floor tile, wherein the edges of the upper and lower parts are at least partially staggered, wherein the upper part comprises an upper surface layer and the lower part comprises a lower surface layer, the edges of the upper and lower parts together form a self-locking floor tile edge, the self-locking floor tile edge comprises a plurality of sides, the lower part has at least two jogged edges staggered with the same side of the upper part, and the jogged edges are only arranged in pairs with non-adjacent sides, one of the jogged edges of each pair has a contour line which is at least partially identical with two of the jogged edges. The structure has the greatest advantages that the technical problem of easy tilting is solved, but the edge structure of the floor block is complex, the production and manufacturing procedures are more, the cost is higher, if a certain floor block is damaged, a plurality of surrounding floor blocks need to be disassembled, and the floor block is complex to disassemble and has higher difficulty.
Therefore, in order to solve the above-mentioned drawbacks of the floor structure and the installation form, it is necessary to develop a modular, completely self-locking electric heating substrate capable of overcoming the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a self-locking type electric heating substrate for a rail transit vehicle, which can effectively solve the problems of long-term reliability of complete self-locking between the electric heating substrates, convenient installation and disassembly and vibration and noise reduction sealing.
The aim of the invention is realized by the following technical scheme: the self-locking type electric heating substrate for the rail transit vehicle comprises a motherboard and a male plate, wherein the motherboard and the male plate are provided with aluminum hollow section frames, the frames of the motherboard and the male plate are special-shaped hollow aluminum sections, the lower surface of the outer side edge of the cross section of the motherboard is of a three-stage ladder structure, the upper and lower surfaces of the inner side are of a two-stage ladder structure, the outer side edge of the cross section of the male plate is provided with a boss structure, the top end of the boss structure is provided with a male buckle, and the upper and lower surfaces of the inner side of the male plate are of the two-stage ladder structure; the lower surface of the second-stage ladder structure at the outer side edge of the motherboard is connected with the lower surface structure of the boss structure at the outer side edge of the male board through an end lock tongue body; a sealing elastic glue is arranged between the upper surface of the boss structure of the outer side of the male plate and the lower surface of the primary step structure of the outer side of the mother plate; the right side of the hollow section bar of the motherboard frame is provided with a countersunk through hole penetrating through the second step structure, and the lower part of the screw rod penetrates through the countersunk through hole to be fixed with the lock tongue body; the heating film and the protective layer are sequentially compounded in the stepped structures of the upper surfaces of the inner sides of the mother board and the male board from bottom to top; an elastic supporting block is arranged between the lower surface of the first-stage ladder structure of the outer side of the male plate and the chassis section bar of the vehicle body, and the lower surface of the third-stage ladder structure of the outer side of the motherboard is suspended.
The screw rod, the lock tongue body and the female buckle of the spring lock-like lock tongue structure are combined to form the self-locking device.
The upper surfaces of the female buckle and the male buckle are respectively provided with a 45-degree chamfer angle.
The sealing elastic glue is of a solid structure, the upper surface of a horizontal plane of the sealing elastic glue is in contact with the first-stage stepped structure of the lower surface of the outer side edge of the motherboard, the lower surface of the sealing elastic glue is in contact with the upper surface of the boss structure of the outer side edge of the male board, and the left surface and the right surface of a vertical plane are respectively in contact with the outer side end surfaces of the motherboard and the male board.
The inner sides of the mother board and the male board are both light and high-strength sandwich composite structures, and the sandwich composite structures are formed by compositing an upper panel, a lower panel, a foam core material and frame profiles thereof.
An elastic washer is arranged between the screw shoulder of the self-locking device and the countersunk through hole of the motherboard.
The invention has the beneficial effects that:
the utility model provides a self-locking type electrical heating base plate for rail transit vehicle, is connected mother board and public board through self-locking device and sealed elastic glue, and the cavity section bar frame of public board passes through the elastic support piece to be fixed on automobile body chassis section bar, and the mother board is unsettled to need not be fixed with automobile body chassis section bar, and its overall structure is connected portably, light in weight has realized energy-conserving, the environmental protection purpose that the lightweight brought. When the mother board and the male board are installed, the long end of the lock tongue body of the self-locking device is fixed on the lower surface structure of the boss structure of the outer side edge of the male board, and at the moment, the lock tongue body is ensured to rigidly contact with the hollow profile frame of the male board, so that a complete locking state is realized; when the electric heating floor is disturbed by vibration, the motherboard cannot automatically pop out from the male board, long-term stability is maintained, and reliability is higher than that of a pure buckle form. When the electric heating floor is installed, the lower surface of the first-stage stepped structure of the outer side edge of the male plate is fixed on the elastic supporting block, the long end of the lock tongue body is adjusted to be positioned on the lower surface of the second-stage stepped structure of the outer side edge of the female plate, then the female buckle is pressed by the male buckle, the female buckle automatically rebounds and returns to the original position, and finally the screw rod is rotated to enable the long end of the lock tongue body to be positioned on the lower surface structure of the boss structure of the outer side edge of the male plate to achieve a complete locking state; if the electric heating floor needs to be maintained or replaced, in the complete locking state, the screw rod is rotated to enable the long end of the lock tongue body to be positioned on the lower surface of the secondary step structure on the outer side edge of the motherboard, the motherboard is lifted by force, the female buckle is extruded and sprung into the lock tongue body and penetrates through the male tongue, and at the moment, the motherboard is completely separated from the male board to realize the disassembling state, so that the installation and the disassembly are convenient and concise. The electric heating floor board bears larger alternating load, and the load on the upper part of the motherboard is transferred to the male board through the sealing elastic glue. Because the sealing elastic glue is of a solid structure and transmits load in a face force mode, the whole structure is stressed uniformly, stress concentration phenomenon is avoided, deformation inconsistency and gaps of connection between the mother board and the male board can be effectively coordinated and compensated, meanwhile, the mechanical property of the whole structure is improved, the sealing elastic glue has a good vibration reduction function, and the phenomenon that vibration abnormal sound is generated by mechanical connection is eliminated.
Drawings
Fig. 1 is a schematic cross-sectional view of a motherboard according to the present invention.
Fig. 2 is a schematic cross-sectional view of a male plate according to the present invention.
FIG. 3 is a schematic view of the structure of the self-locking device of the present invention.
FIG. 4 is a schematic cross-sectional view of the present invention mated with a vehicle frame.
Fig. 5 is a schematic view of the present invention after installation.
Fig. 6 is a schematic view of the invention in its installed state.
Fig. 7 is a schematic view of the invention disassembled.
FIG. 8 is a schematic view in partial cross-section of the portion A-A of FIG. 6 in accordance with the present invention.
Description of the embodiments
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 4, the self-locking electric heating substrate for the rail transit vehicle comprises a motherboard 14 and a male plate 15 of aluminum hollow profile frames, wherein the frames of the motherboard 14 and the male plate 15 are special-shaped hollow aluminum profiles, the lower surface of the outer side edge of the cross section of the motherboard 14 is of a three-stage ladder structure, and the upper surface and the lower surface of the inner side are of a two-stage ladder structure. The outer side of the cross section of the male plate 15 is provided with a boss structure, and the top end of the boss structure is provided with a male buckle 9. The inner sides of the mother board 14 and the male board 15 are both light and high-strength sandwich composite structures, and are formed by compositing the upper panel 2, the lower panel 3, the foam core material 4 and frame profiles. The upper and lower surfaces of the inner side of the male plate 15 are two-stage ladder structures; the lower surface of the second-stage ladder structure at the outer side edge of the motherboard 14 is connected with the lower surface structure of the boss structure at the outer side edge of the male board 15 through the lock tongue body 10; a sealing elastic adhesive 13 is arranged between the upper surface of the boss structure of the outer side of the male plate 15 and the lower surface of the primary step structure of the outer side of the mother plate 14; the right side of the hollow frame section of the motherboard 14 is provided with a countersunk through hole 1 penetrating through the second step structure, and the lower part of the screw 12 penetrates through the countersunk through hole 1 to be fixed with the lock tongue body 10; the heating film 5 and the protective layer 6 are sequentially compounded in the stepped structures of the inner upper surfaces of the mother board 14 and the male board 15 from bottom to top; the lower surface of the first-stage ladder structure on the outer side of the male plate 15 is fixed with the chassis profile 8 of the car body through an elastic supporting block 7, and the lower surface of the third-stage ladder structure on the outer side of the motherboard 14 is suspended. The end of the lock tongue body 10 is provided with a female buckle 11 similar to a spring lock tongue structure, and the upper surfaces of the female buckle 11 and the male buckle 9 are respectively provided with a 45-degree chamfer angle.
As shown in fig. 5, the self-locking electric heating substrate for rail transit vehicle is used for ensuring that the whole structure is connected simply and conveniently, the weight is light, the energy saving and environmental protection purpose brought by light weight is realized, the motherboard 14 and the male plate 15 are connected through the self-locking device and the sealing elastic glue 13, the hollow frame section bar of the male plate 15 is fixed with the chassis section bar 8 of the vehicle body through the elastic supporting block 7, and the motherboard 14 is suspended and does not need to be fixed with the chassis section bar 8 of the vehicle body.
Furthermore, the electric heating floor has excellent bearing capacity and vibration characteristics in the use environment of long-term bearing of large alternating load. The load on the upper portion of the motherboard 14 is transferred to the male plate through the sealing elastic glue 13, because the sealing elastic glue 13 is of a solid structure, the L-shaped structure is arranged, the upper surface of the horizontal plane of the L-shaped structure is contacted with the first-stage stepped structure of the lower surface of the outer side edge of the motherboard 14, the lower surface of the L-shaped structure is contacted with the upper surface of the boss structure of the outer side edge of the male plate 15, the left and right surfaces of the vertical plane are respectively contacted with the outer side end surfaces of the motherboard 14 and the male plate 15, the whole structure is uniformly stressed, the stress concentration phenomenon is avoided, the deformation inconsistency and gaps of connection between the motherboard 14 and the male plate 15 can be effectively coordinated and compensated, the mechanical property of the whole structure is improved, the sealing elastic glue 13 has better vibration and noise reduction functions, and the phenomenon that vibration and abnormal noise are generated by mechanical connection is eliminated.
Further, in order to maintain the long-term stability of the connection between the floors, the phenomena that the simple buckling mode is easy to disengage and the reliability is low are avoided, when the mother board 14 and the male board 15 are installed, the screw 12 is rotated to enable the long end of the lock tongue body to be located at the lower surface structure of the boss structure of the outer side edge of the male board 15, rigid contact between the lock tongue body 10 and the hollow frame profile of the male board 15 is ensured, and the self-locking device achieves a complete locking state. Even when the electric heating floor is disturbed by a large vibration, the motherboard 14 cannot be automatically ejected from the male board 15.
As shown in fig. 6, when the electric heating floor is installed, firstly the lower surface of the first-stage stepped structure on the outer side of the male plate 15 is fixed on the elastic supporting block 7, the long end of the bolt body 10 is adjusted to be positioned on the lower surface of the second-stage stepped structure on the outer side of the mother plate 14, then the female buckle 11 is pressed over the male buckle 9, the female buckle 11 automatically rebounds and returns to the original position, and finally the screw 12 is rotated to enable the long end of the bolt body 10 to be positioned on the lower surface structure of the boss structure on the outer side of the male plate to realize a complete self-locking state; as shown in fig. 7, if the electric heating floor needs to be maintained or replaced, in its completely locked state, the screw 12 is rotated to make the long end of the lock tongue body 10 be located on the lower surface of the secondary step structure on the outer side of the motherboard 14, the motherboard 14 is lifted up by force, the female buckle 11 of the spring lock-like lock tongue structure is pressed into the lock tongue body 10 and passes through the male buckle 9, and then the entire motherboard 14 is completely separated from the male plate 15, so as to realize the detached state, thus the installation and the detachment are convenient and simple.
The self-locking type electric heating substrate for the rail transit vehicle can be distributed according to actual vehicle running environment parameters, electric heating floor materials, loads on the upper part of the floor and floor blocks, can be used for designing a section form of a hollow frame section, the length of a lock tongue body in a self-locking device and the thickness of sealing elastic glue, and achieves the effects of more superior reliability, vibration reduction, noise reduction, light weight and safety of complete self-locking.
Claims (4)
1. Self-locking type electric heating substrate for rail transit vehicle, including mother board (14) and public board (15) of aluminium system cavity section bar frame, its characterized in that: the frames of the mother board (14) and the male board (15) are special-shaped hollow aluminum profiles, the lower surface of the outer side edge of the cross section of the mother board (14) is of a three-stage ladder structure, and the upper surface and the lower surface of the inner side are of a two-stage ladder structure; the outer side edge of the cross section of the male plate (15) is provided with a boss structure, the top end of the boss structure is provided with a male buckle (9), and the upper surface and the lower surface of the inner side of the male plate (15) are both of a secondary ladder structure; the lower surface of the second-stage ladder structure at the outer side edge of the motherboard (14) is connected with the lower surface structure of the boss structure at the outer side edge of the male board (15) through a lock tongue body (10) at the end part; a sealing elastic adhesive (13) is arranged between the upper surface of the boss structure of the outer side of the male plate (15) and the lower surface of the primary step structure of the outer side of the mother plate (14); a countersunk through hole (1) penetrating through the second step structure is formed in the right side of the hollow section bar of the motherboard frame, and the lower part of the screw rod (12) penetrates through the countersunk through hole (1) to be fixed with the lock tongue body (10); the heating film (5) and the protective layer (6) are sequentially compounded in the stepped structures of the inner upper surfaces of the mother board (14) and the male board (15) from bottom to top; an elastic supporting block (7) is arranged between the lower surface of the first-stage ladder structure of the outer side of the male plate (15) and the chassis profile (8) of the vehicle body, and the lower surface of the third-stage ladder structure of the outer side of the mother plate (14) is suspended; the screw (12), the lock tongue body (10) and a female buckle (11) of the spring lock-like lock tongue structure are combined to form a self-locking device;
the sealing elastic glue (13) is of a solid structure, is arranged in an L shape, the upper surface of a horizontal plane of the sealing elastic glue is contacted with the first-stage stepped structure of the lower surface of the outer side edge of the mother board (14), the lower surface of the sealing elastic glue is contacted with the upper surface of the boss structure of the outer side edge of the male board (15), and the left and right surfaces of the vertical plane are respectively contacted with the outer side end surfaces of the mother board (14) and the male board (15).
2. The self-locking electric heating substrate for rail transit vehicle of claim 1, wherein: the upper surfaces of the female buckle (11) and the male buckle (9) are respectively provided with a 45-degree chamfer angle.
3. The self-locking electric heating substrate for rail transit vehicle of claim 1, wherein: the inner sides of the mother board (14) and the male board (15) are of a light high-strength sandwich composite structure, and are formed by compositing an upper panel (2), a lower panel (3), a foam core material (4) and frame profiles thereof.
4. The self-locking type electric heating substrate for the rail transit vehicle according to claim 2, wherein an elastic gasket is arranged between the shoulder of a screw (12) of the self-locking device and a countersunk through hole (1) of a motherboard (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569935.XA CN108482402B (en) | 2018-06-05 | 2018-06-05 | Self-locking type electric heating substrate for rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569935.XA CN108482402B (en) | 2018-06-05 | 2018-06-05 | Self-locking type electric heating substrate for rail transit vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN108482402A CN108482402A (en) | 2018-09-04 |
| CN108482402B true CN108482402B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810569935.XA Active CN108482402B (en) | 2018-06-05 | 2018-06-05 | Self-locking type electric heating substrate for rail transit vehicle |
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| CN (1) | CN108482402B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749834B (en) * | 2018-06-05 | 2023-06-23 | 成都西交轨道交通装备科技有限公司 | Adhesive riveting installation structure of composite top cover for rail transit vehicle |
| CN116495021A (en) * | 2023-04-21 | 2023-07-28 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle floor, carriage and rail vehicle |
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| EP2409889A1 (en) * | 2010-07-20 | 2012-01-25 | Bombardier Transportation GmbH | Floor for fixing in vehicles with hollow profiles and vehicle with floor |
| CN102438871A (en) * | 2009-05-20 | 2012-05-02 | 3A科技和管理有限公司 | Heating device for a rail vehicle |
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| CN205840411U (en) * | 2016-07-26 | 2016-12-28 | 李娟珍 | A kind of portable stage |
| CN207389198U (en) * | 2016-11-22 | 2018-05-22 | 中车长春轨道客车股份有限公司 | The built-in floor gap occlusion structure of rail vehicle |
| CN208291218U (en) * | 2018-06-05 | 2018-12-28 | 成都西交轨道交通装备科技有限公司 | A kind of rail traffic vehicles self-locking electric heating substrate |
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2018
- 2018-06-05 CN CN201810569935.XA patent/CN108482402B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438871A (en) * | 2009-05-20 | 2012-05-02 | 3A科技和管理有限公司 | Heating device for a rail vehicle |
| CN102079337A (en) * | 2009-11-26 | 2011-06-01 | 北汽福田汽车股份有限公司 | Manhole cover assembly for car floorboard |
| EP2409889A1 (en) * | 2010-07-20 | 2012-01-25 | Bombardier Transportation GmbH | Floor for fixing in vehicles with hollow profiles and vehicle with floor |
| CN102003062A (en) * | 2010-12-13 | 2011-04-06 | 伊善磊 | Self-locking floor |
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| CN108482402A (en) | 2018-09-04 |
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