CN215258260U - Sealing and fixing structure of wire harness and railway vehicle - Google Patents
Sealing and fixing structure of wire harness and railway vehicle Download PDFInfo
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- CN215258260U CN215258260U CN202120597596.3U CN202120597596U CN215258260U CN 215258260 U CN215258260 U CN 215258260U CN 202120597596 U CN202120597596 U CN 202120597596U CN 215258260 U CN215258260 U CN 215258260U
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Abstract
The utility model provides a sealed fixed knot of pencil constructs and rail vehicle, sealed fixed knot constructs includes: the through pipe comprises a through pipe, a first sealing part, a second sealing part and a third sealing part; the first sealing part and the third sealing part are arranged at two ends in the through pipe; the second sealing part is arranged in the through pipe and is positioned between the first sealing part and the third sealing part; the wire harness penetrates through the through pipe and sequentially penetrates through the first sealing portion, the second sealing portion and the third sealing portion. The utility model provides a pair of sealed fixed knot of pencil constructs and rail vehicle through setting up the triplex seal structure along lining up position extending direction, when having guaranteed to the pencil is fixed, realizes fully sealed and the sound insulation to lining up the position.
Description
Technical Field
The utility model relates to a sealed technical field especially relates to a sealed fixed knot of pencil constructs and rail vehicle.
Background
With the increasing development of scientific technology and the increasing pace of life, the rail transit industry plays an increasingly important role in promoting the modernized construction process. The huge railway transportation line and different operation environments make rail vehicles face significant challenges, and energy conservation, environmental protection, corrosion resistance, fatigue resistance, fire resistance, noise reduction and comfort become important points of attention of designers gradually. When the speed per hour of the train is more than 400 km/h and 600km/h, the air resistance accounts for more than 70% and 90% of the total resistance of the train in operation, the noise generated by air impact of the train after the speed is increased is stronger, and the whole train needs to have good sound insulation and air tightness in order to reduce the noise in the train and ensure the comfort of passengers. The distribution board wires of a direct current cabinet, an alternating current cabinet, a network cabinet and the like on the rail vehicle and the stainless steel pipes for ventilation braking, water passing, pollution discharging and the like all penetrate through the inside of the vehicle to the outside of the vehicle, and the penetrating holes need to be sealed after the wiring is finished or the pipelines are installed.
At present, with the improvement of the functions of the railway vehicle, the forms of the through parts and the through holes are increased, and the following problems often occur in the production and operation processes of the vehicle:
(1) the sealing difficulty is high. In order to meet the requirement of specific functions, most through holes of the vehicle body are not vertically communicated but are step-shaped, cables or pipelines are arranged or installed along with the communicated parts, the shapes of the through holes of various vehicle types are different, if a Roxtec clamping block is adopted for sealing the cables or the pipelines, different clamping blocks need to be manufactured according to the shapes of the communicated parts, the communicated parts in the vehicle body assembling process can generate certain deformation due to the action of external force, the clamping blocks are easily poor in sealing and the vehicle body has a flash seam phenomenon, and a huge wiring harness needs to pass through modules with different diameters, so that the construction difficulty is high, and the cost is high;
(2) the fire protection requirement is high. In order to ensure the safety of passengers, the fireproof requirement of the rail vehicle is increased, the through part is connected with the inside and the outside of the vehicle, if a fire disaster occurs outside the vehicle, flames easily enter the vehicle through the through part, a series of hazards are caused, if a cable is ignited carelessly, the basic function in the vehicle is lost, a door mechanism cannot be opened, and the escape probability of personnel is greatly reduced;
(3) the operation faults are more. Due to poor sealing of the through part or aging of the through hole due to natural environmental factors, rain leakage and air leakage often occur in the operation process of the vehicle body, and functional faults or short circuit of the line of the vehicle are caused, so that complaints of riding and users are caused.
The problems mentioned above all generate certain challenges for the sealing of the through part, the poor treatment can cause the frequent occurrence of air leakage and water leakage of the through part, bad riding experience is brought to passengers and users, and the operation and maintenance period of the vehicle is greatly shortened due to the fact that the vehicle body section is corroded by water seepage to cause corrosion. Therefore, in order to meet the requirements of the existing vehicles and users, the good sealing effect of the through part and the normal overhaul period of the vehicles are ensured, and the improvement of the construction efficiency and the quality of the through part is the central importance of the built-in work of the railway vehicles.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sealed fixed knot of pencil constructs for link up the position among the solution prior art and leak wind, leak and frequently take place, bring bad experience of taking for passenger and user, still because infiltration corruption automobile body section bar causes the corrosion, reduce vehicle operation maintenance cycle's defect by a wide margin, through setting up triplex seal structure along lining up the position extending direction, when having guaranteed to the pencil is fixed, realize fully sealed and the sound insulation to link up the position.
The utility model also provides a rail vehicle for link up the position among the solution prior art and leak wind, leak frequently take place, bring bad experience of taking for passenger and user, still because infiltration corrosion automobile body section bar causes the corrosion, reduce the defect of vehicle operation maintenance cycle by a wide margin, set up triplex seal structure through following the position extending direction that link up, when having guaranteed to the pencil fixed, realize fully sealed and syllable-dividing to link up the position, guaranteed vehicle internal seal environment demand and normal operation maintenance cycle.
According to the utility model discloses a sealed fixed knot of pencil constructs that first aspect provides, include: the through pipe comprises a through pipe, a first sealing part, a second sealing part and a third sealing part;
the first sealing part and the third sealing part are arranged at two ends in the through pipe;
the second sealing part is arranged in the through pipe and is positioned between the first sealing part and the third sealing part;
the wire harness penetrates through the through pipe and sequentially penetrates through the first sealing portion, the second sealing portion and the third sealing portion.
According to the utility model discloses an embodiment, first sealing is mainly for the seal structure that the dry sealed putty of not constituteing.
In particular, the present embodiment provides an embodiment of the first sealing portion, which achieves sealing and supporting effects on the through pipe by setting the main component of the first sealing portion as a non-drying sealing putty.
Further, in practical application, a certain amount of the first sealing part is selected and sufficiently kneaded to be in an oil outlet state, and then the first sealing part is filled to one end of the through pipe.
In an application scenario, the through pipe is vertically arranged or arranged at an inclined angle, and the first sealing part is filled at the end part of the through pipe close to the bottom.
According to the utility model discloses an embodiment, the second sealing mainly is the sealed structure of constituteing of self-leveling nature sealant.
Specifically, the embodiment provides an implementation manner of the second sealing portion, and the main component of the second sealing portion is set as the self-leveling sealant, so that in the sealing process, the second sealing portion can flow to the end where the first sealing portion is located along the pipe wall at the other end of the through pipe.
In an application scenario, the sealing device further comprises a sealing layer, wherein the sealing layer is arranged on the inner surface of the through pipe and is matched with the second sealing part and the third sealing part; after the first sealing part is filled, a layer of sealing layer is coated on the remaining inner surface of the through pipe, the sealing layer is made of absolute ethyl alcohol or isopropyl alcohol, and after the coating is finished, the sealing layer is dried for at least 10min, and then the second sealing part is poured into the through pipe.
According to an embodiment of the present invention, the second sealing portion is any one of epoxy, polyurethane, silicone-modified polyurethane, silicone, silane, and modified silane.
Specifically, this example provides another embodiment of the second sealing part, and since the outer part of the wire harness generally employs a polyethylene sheath, a rubber sheath, a stainless steel pipe, an aluminum alloy substrate, and the like, the second sealing part has a certain adhesive strength to the wire harness by employing any one of epoxy, polyurethane, silicone-modified polyurethane, silicone, silane, and modified silane, the adhesive strength being not lower than 1.0 Mpa.
According to the utility model discloses an embodiment, the third sealing is mainly the sealed structure that the sealed glue of expansion type is constituteed.
Specifically, the embodiment provides an implementation manner of the third sealing portion, and the main component of the third sealing portion is set as the intumescent sealant, so that on one hand, the protection of the second sealing portion is ensured, the sealing performance of the through pipe is better, and on the other hand, the sealing structure has good fireproof performance.
According to an embodiment of the present invention, the third sealing portion is any one of polyurethane, acrylic and silicone.
Specifically, the present embodiment provides another embodiment of the third sealing portion, and by providing the components of the third sealing portion, the volume of the third sealing portion can be ensured to expand by more than 5 times when encountering fire, and the flame and heat transfer can be effectively prevented.
According to the utility model discloses an embodiment, first sealing is followed run through the shutoff length of siphunculus extending direction is greater than run through half of pipe extending length.
Specifically, the present example provides an embodiment in which the first sealing portion is sealed in the through pipe for a length, and the first sealing portion is filled in most of the through pipe inner space because the first sealing portion is low in cost, has a large solid content, and is excellent in heat resistance.
According to the utility model discloses an embodiment, the second sealing is followed run through the shutoff length of siphunculus extending direction is greater than run through a half of tub surplus extension length.
Specifically, the present example provides an embodiment in which the second sealing portion seals the length of the through-tube, and the second sealing portion can seal the gap between the first sealing portion and the through-tube, and after curing, the second sealing portion forms a flat surface, thereby maintaining a good appearance.
According to the utility model discloses an embodiment still includes: a first support plate and a second support plate;
the first support plate is arranged at the end part of one side of the through pipe and is abutted against the first sealing part;
the two second supporting plates are symmetrically arranged on a pair of opposite side edges of the first supporting plate and are detachably connected with the outer wall of the through pipe;
wherein, be provided with on the first backup pad and supply the opening that the pencil passed through.
Particularly, this embodiment provides an implementation mode that supports first sealing, through setting up first backup pad and second backup pad for through and link up being connected between the pipe, realize the supporting role to first sealing, avoid because when passing through the vertical setting of pipe, first sealing because the production displacement or the landing scheduling problem that viscidity decline brought.
It should be noted that, the second supporting plate and the outer wall of the through pipe can be detachably connected by screws, or other connection modes which are convenient to detach, such as clamping, etc., for this reason, the present invention has not been limited to a great extent, and in practical applications, reference may be made to related designs in the field.
According to the utility model discloses a rail vehicle that the second aspect provided has the sealed fixed knot structure of foretell a pencil.
In an application scene, the through pipe is the position of all through wires holes and through pipe holes of rail vehicle, through set up first sealing, second sealing and third sealing in the through pipe, can effectively solve difficult problems such as sealed and fire prevention that link up the position.
The utility model provides an above-mentioned one or more technical scheme has one of following technological effect at least: the utility model provides a pair of sealed fixed knot of pencil constructs and rail vehicle through setting up the triplex seal structure along lining up position extending direction, when having guaranteed to the pencil is fixed, realizes fully sealed and the sound insulation to lining up the position.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view showing an assembly relationship of a sealing and fixing structure of a wire harness according to the present invention;
fig. 2 is one of schematic diagrams illustrating an assembly relationship between a first support plate and a second support plate in the sealing and fixing structure of the wire harness according to the present invention;
fig. 3 is a second schematic view of an assembly relationship between the first support plate and the second support plate in the sealing and fixing structure of the wire harness according to the present invention.
Reference numerals:
10. a through pipe; 20. A first seal portion; 30. A second seal portion;
40. a third seal portion; 50. A first support plate; 51. An opening;
60. a second support plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In some embodiments of the present invention, as shown in fig. 1 to 3, the present invention provides a sealing and fixing structure of a wire harness, including: a through pipe 10, a first sealing part 20, a second sealing part 30 and a third sealing part 40; the first sealing part 20 and the third sealing part 40 are arranged at two ends in the through pipe 10; the second sealing part 30 is arranged inside the through pipe 10 and is positioned between the first sealing part 20 and the third sealing part 40; the wire harness penetrates through the through pipe 10 and sequentially penetrates through the first sealing part 20, the second sealing part 30 and the third sealing part 40.
In detail, the utility model provides a sealed fixed knot of pencil constructs for link up the position among the solution prior art and leak, leak and frequently take place, bring bad experience of taking for passenger and user, still because the infiltration corrodes the automobile body section bar and causes the corrosion, reduce the defect of vehicle operation maintenance cycle by a wide margin, set up triplex seal structure through following the position extending direction that link up, when having guaranteed to the pencil is fixed, realize fully sealed and the sound insulation to link up the position.
In some possible embodiments of the present invention, the first sealing portion 20 is a sealing structure mainly composed of non-dry sealing putty.
Specifically, the present embodiment provides an embodiment of the first sealing portion 20, and the main component of the first sealing portion 20 is a non-drying sealing putty, so that the sealing and supporting functions of the through pipe 10 are realized.
Further, in practical applications, a certain amount of the first sealing portion 20 is selected and sufficiently kneaded to be in an oil-out state, and then the oil is filled to one end of the through pipe 10.
In an application scenario, the through pipe 10 is vertically arranged or arranged with an inclined angle, and the first sealing part 20 is filled in an end part of the through pipe 10 close to the bottom side.
In some possible embodiments of the present invention, the second sealing portion 30 is a sealing structure mainly composed of self-leveling sealant.
Specifically, the embodiment provides an embodiment of the second sealing portion 30, and the main component of the second sealing portion 30 is a self-leveling sealant, so that the second sealing portion 30 can flow to the end of the first sealing portion 20 along the pipe wall at the other end of the through pipe 10 during the sealing process.
In one application scenario, the sealing device further comprises a sealing layer, wherein the sealing layer is arranged on the inner surface of the through pipe 10 and is matched with the second sealing part 30 and the third sealing part 40; after the first sealing portion 20 is completely filled, a sealing layer is coated on the remaining inner surface of the through pipe 10, the sealing layer is made of absolute ethyl alcohol or isopropyl alcohol, and after the coating is completed, the sealing layer is dried for at least 10min, and then the second sealing portion 30 is filled into the through pipe 10.
In some possible embodiments of the present invention, the second sealing portion 30 is any one of epoxy, polyurethane, silicone-modified polyurethane, silicone, silane, and modified silane.
Specifically, the present embodiment provides another embodiment of the second sealing part 30, and the second sealing part 30 has a certain adhesive strength to the wire harness, which is not lower than 1.0Mpa, by using any one of epoxy, polyurethane, silicone-modified polyurethane, silicone, silane, and modified silane, due to the polyethylene sheath, the rubber sheath, the stainless steel pipe, the aluminum alloy substrate, and the like, which are generally used in the outside of the wire harness.
In some possible embodiments of the present invention, the third sealing portion 40 is mainly a sealing structure composed of an expansion type sealant.
Specifically, the present embodiment provides an implementation manner of the third sealing portion 40, and the main component of the third sealing portion 40 is set as an expansion type sealant, so that on one hand, the protection of the second sealing portion 30 is ensured, the sealing performance of the through pipe 10 is better, and on the other hand, the sealing structure has good fireproof performance.
In some possible embodiments of the present invention, the third sealing portion 40 is any one of polyurethane, acrylic and silicone.
Specifically, the present embodiment provides another embodiment of the third sealing portion 40, and by providing the components of the third sealing portion 40, the volume of the third sealing portion 40 expanding more than 5 times when encountering fire can be ensured, and the flame and heat transfer can be effectively prevented.
In some possible embodiments of the present invention, the plugging length of the first sealing portion 20 along the extending direction of the through pipe 10 is greater than half of the extending length of the through pipe 10.
Specifically, in the present embodiment, the first sealing part 20 is filled in most of the internal space of the through pipe 10 because the first sealing part 20 is low in cost, has a high solid content, and is excellent in heat resistance, by providing an embodiment in which the first sealing part 20 has a sealing length in the through pipe 10.
In some possible embodiments of the present invention, the blocking length of the second sealing portion 30 along the extending direction of the through pipe 10 is greater than half of the remaining extending length of the through pipe 10.
Specifically, in the present embodiment, the second sealing portion 30 is provided in an embodiment in which the penetrating pipe 10 has a sealing length, and the second sealing portion 30 can seal the gap between the first sealing portion 20 and the penetrating pipe 10, and form a flat surface after curing, thereby maintaining a good appearance.
In some possible embodiments of the present invention, as shown in fig. 2 and 3, the present invention further includes: a first support plate 50 and a second support plate 60; the first support plate 50 is provided at an end portion of one side of the through pipe 10 and abuts against the first sealing portion 20; the two second supporting plates 60 are symmetrically arranged on a pair of opposite side edges of the first supporting plate 50 and detachably connected with the outer wall of the through pipe 10; the first support plate 50 is provided with an opening 51 through which the wire harness passes.
Specifically, the present embodiment provides an implementation manner for supporting the first sealing portion 20, by providing the first supporting plate 50 and the second supporting plate 60, the first sealing portion 20 is supported by the connection with the through pipe 10, and the problems of displacement or slipping of the first sealing portion 20 caused by viscosity reduction when the through pipe 10 is vertically disposed are avoided.
It should be noted that the second supporting plate 60 and the outer wall of the through pipe 10 can be detachably connected by screws, or other connection methods that are convenient to detach, such as clamping, etc., for this reason, the present invention is not limited to this, and in practical applications, reference may be made to related designs in the art.
It should be noted that fig. 2 and 3 illustrate the first support plate 50 and the second support plate 60 from two angles, wherein the second support plate 60 in fig. 3 is provided with a plurality of through holes for passing bolts and the like, and fig. 3 is merely an illustration of an embodiment of the second support plate 60, and does not represent that the connection of the second support plate 60 to the through pipe 10 can be achieved only by bolts.
Further, in fig. 2, an embodiment in which two second supporting plates 60 are symmetrically disposed on two opposite sides of the first supporting plate 50 is shown in a connection manner between the second supporting plate 60 and the first supporting plate 50, and in practical applications, four second supporting plates 60 may be respectively disposed on four sides of the first supporting plate 50.
In some embodiments of the present invention, the present scheme provides a rail vehicle having the above-mentioned sealing and fixing structure for a wire harness.
In detail, the utility model also provides a rail vehicle for link up the position among the solution prior art and leak, leak and frequently take place, bring bad experience of taking for passenger and user, still because infiltration corruption body section bar causes the corrosion, reduce the defect of vehicle operation maintenance cycle by a wide margin, through setting up the triplex seal structure along link up the position extending direction, when having guaranteed to the pencil fixed, realize fully sealed and the syllable-dividing to link up the position, guaranteed that vehicle internal seal environment needs and normal operation maintenance cycle.
In an application scenario, the through pipe 10 is a part of all threading holes and pipe-penetrating holes of a railway vehicle, and the first sealing part 20, the second sealing part 30 and the third sealing part 40 are arranged in the through pipe 10, so that the problems of sealing, fire prevention and the like of the through part can be effectively solved.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.
Claims (10)
1. A sealing and fixing structure of a wire harness, characterized by comprising: the through pipe comprises a through pipe, a first sealing part, a second sealing part and a third sealing part;
the first sealing part and the third sealing part are arranged at two ends in the through pipe;
the second sealing part is arranged in the through pipe and is positioned between the first sealing part and the third sealing part;
the wire harness penetrates through the through pipe and sequentially penetrates through the first sealing portion, the second sealing portion and the third sealing portion.
2. The sealing and fixing structure of a wire harness as set forth in claim 1, wherein said first sealing portion is a sealing structure mainly composed of a non-drying sealing putty.
3. The structure of claim 1, wherein the second sealing portion is a sealing structure mainly composed of a self-leveling sealant.
4. The structure of claim 3, wherein the second sealing portion is any one of epoxy, polyurethane, silicone-modified polyurethane, silicone, silane, and modified silane.
5. The structure of claim 1, wherein the third sealing portion is mainly a sealing structure formed of an intumescent sealant.
6. The structure of claim 5, wherein the third sealing portion is any one of polyurethane, acrylic, and silicone.
7. The structure according to any one of claims 1 to 6, wherein a blocking length of the first sealing portion in the extending direction of the through pipe is longer than a half of an extending length of the through pipe.
8. The structure according to claim 7, wherein a blocking length of the second sealing portion in an extending direction of the through pipe is longer than a half of a remaining extending length of the through pipe.
9. The sealing and fixing structure of a wire harness according to any one of claims 1 to 6, further comprising: a first support plate and a second support plate;
the first support plate is arranged at the end part of one side of the through pipe and is abutted against the first sealing part;
the two second supporting plates are symmetrically arranged on a pair of opposite side edges of the first supporting plate and are detachably connected with the outer wall of the through pipe;
wherein, be provided with on the first backup pad and supply the opening that the pencil passed through.
10. A railway vehicle characterized by having a sealing and fixing structure of a wire harness according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597596.3U CN215258260U (en) | 2021-03-24 | 2021-03-24 | Sealing and fixing structure of wire harness and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597596.3U CN215258260U (en) | 2021-03-24 | 2021-03-24 | Sealing and fixing structure of wire harness and railway vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN215258260U true CN215258260U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120597596.3U Active CN215258260U (en) | 2021-03-24 | 2021-03-24 | Sealing and fixing structure of wire harness and railway vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN215258260U (en) |
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2021
- 2021-03-24 CN CN202120597596.3U patent/CN215258260U/en active Active
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