CN220130211U - Aluminum alloy automobile body connecting bridge section bar and seat mounting structure - Google Patents

Abstract

The utility model discloses an aluminum alloy vehicle body connecting bridge section bar and a seat mounting structure, wherein the aluminum alloy vehicle body connecting bridge section bar comprises the following components: the left end of the profile main body is provided with a first connecting hole which is used for being connected with the side wall framework, the lower end of the profile main body is provided with a second connecting hole which is used for being connected with the underframe; the upper end of the profile main body is provided with a first cavity penetrating forwards and/or backwards, the first cavity is communicated with a first notch which is opened upwards or rightwards, and the caliber of the first notch is smaller than the inner diameter of the first cavity; the profile is characterized in that the lower end of the profile main body is provided with a second cavity which is opened forwards and/or backwards, the second cavity is communicated with a second notch which is opened upwards or rightwards, the caliber of the second notch is smaller than the inner diameter of the second cavity, the weight reduction effect is favorably achieved, the installation efficiency is favorably improved, and the use requirement of the light weight of the vehicle body is met.

Description

Aluminum alloy automobile body connecting bridge section bar and seat mounting structure

Technical Field

The utility model relates to the technical field of vehicle accessories, in particular to an aluminum alloy vehicle body connecting bridge profile and a seat mounting structure.

Background

The mounting structure of the seat in the middle section of the passenger car mainly comprises a straight leg mounting structure and an inclined leg mounting structure. Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a conventional straight leg mounting structure, and fig. 2 is a schematic structural view of a conventional diagonal leg mounting structure, where the straight leg mounting structure and the diagonal leg mounting structure both need to fix the upper end and the lower end of a seat with a side frame and an underframe, respectively. Wherein, because the sloping leg mounting structure has the shank accommodation space that increases the position of sitting passenger, reduces the unexpected touching of position of standing passenger and the clean advantage of being convenient for, is becoming the first choice of passenger train gradually.

Referring to fig. 3, fig. 3 is a partial enlarged view of a joint of a conventional diagonal leg installation structure, and the installation structures of two seats are required to be riveted or bolted with a side wall hanging plate and a side wall embedded plate at a side wall skeleton so as to realize connection between the side wall skeleton and the upper end of the seat; the mounting structures of the two seats are riveted or bolted with the underframe embedded plate at the underframe to realize the connection of the underframe and the lower end of the seat, and the gap between the side wall framework and the underframe is sealed through the side wall inner sealing plate, so that the functions of blocking dust, noise, air and the like outside the vehicle are achieved.

But the mounting structure of two kinds of seats all has the shortcoming that the structure is complicated, the installation effectiveness is low, still appears easily to receive operating space and automobile body structure restriction, and can't increase the condition of side wall link plate, side wall embedded plate or chassis embedded plate, and side wall link plate, side wall embedded plate or chassis embedded plate's setting can influence aluminum alloy automobile body structure's weight-reducing effect greatly, does not accord with the demand of automobile body structure lightweight.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art.

The utility model provides an aluminum alloy automobile body connecting bridge profile, which comprises a profile main body, wherein the left end of the profile main body is provided with a first connecting hole, the first connecting hole is used for being connected with a side wall framework, the lower end of the profile main body is provided with a second connecting hole, and the second connecting hole is used for being connected with a bottom frame; the upper end of the profile main body is provided with a first cavity penetrating forwards and/or backwards, the first cavity is communicated with a first notch which is opened upwards or rightwards, and the caliber of the first notch is smaller than the inner diameter of the first cavity; the lower end of the profile main body is provided with a second cavity which is opened forwards and/or backwards, the second cavity is communicated with a second notch which is opened upwards or rightwards, and the caliber of the second notch is smaller than the inner diameter of the second cavity.

The aluminum alloy car body connecting bridge profile provided by the embodiment of the utility model has at least the following beneficial effects: the left end and the lower end of the profile main body are respectively provided with a first connecting hole and a second connecting hole so as to meet the use requirements of riveting or threaded connection of the profile main body with the side wall framework and the underframe, namely, compared with a traditional mounting structure, the two ends of the profile main body are respectively connected with the side wall framework and the underframe, so that the rigidity and the strength of the vehicle body framework are enhanced, the profile main body can replace the traditional side wall inner sealing plate so as to seal a gap between the side wall framework and the underframe, and the interference outside the vehicle is blocked; the upper end and the lower end of the section bar main body are respectively provided with a first cavity and a second cavity, the requirements of installation of the inclined legs of the seat are met, after the upper end of the seat passes through the first cavity through the insert, the upper end of the seat is fixedly connected with the section bar main body through threaded connection, after the lower end of the seat passes through the second cavity through the insert, the lower end of the seat is fixedly connected with the section bar main body through threaded connection, and the front and rear positions of the insert in the first cavity or the second cavity are adjusted, so that the front and rear positions of the seat are adjusted, and later maintenance and repair of the seat are realized; this aluminum alloy automobile body connecting bridge section bar integrates the function of the embedded board of traditional side wall, side wall link plate, the embedded board of chassis and the interior shrouding of side wall, is favorable to increasing the operating space of seat installation to improve installation effectiveness, and compare in the mounting structure that traditional adoption polylith steel sheet was connected, adopt this aluminum alloy automobile body connecting bridge section bar to realize the installation of seat, be favorable to realizing the subtracting heavy to the automobile body structure, accord with the user demand of automobile body lightweight.

According to some embodiments of the utility model, the first connecting hole communicates with a left end of the first cavity, the first notch is open to the right, and the first notch is disposed opposite to the first connecting hole.

Specifically, the first notch is opened towards the right and is arranged, the first connecting hole is communicated with the left end of the first cavity, the first notch is arranged opposite to the first connecting hole, when the connection between the profile main body and the side wall framework is needed to be realized, a worker can pass through the first notch, the profile main body and the side wall framework are penetrated at the first connecting hole, then the stable connection between the profile main body and the side wall framework can be realized through tool locking, the first connecting hole is arranged at the left end of the first cavity, and after the first cavity is connected with the seat, the hiding of the first connecting hole is facilitated.

According to some embodiments of the utility model, the profile body is further provided with a first extension extending towards the right, the second connecting hole being provided on the first extension.

The section bar main part still is equipped with the first extension section towards right extension, and the area of contact of section bar main part and chassis is favorable to increasing to the setting of first extension section, and the second connecting hole is located on the first extension section, is favorable to avoiding influencing the problem that connecting piece and second connecting hole are connected because the second connecting hole top is equipped with the article to appear.

According to some embodiments of the utility model, a hollow cavity is arranged in the profile main body, and the inner wall surface of the hollow cavity is connected with a plurality of reinforcing ribs.

In order to further reduce the weight of the aluminum alloy car body connecting bridge profile, a hollow cavity is arranged in the profile main body, and the weight of the aluminum alloy car body connecting bridge profile is smaller than the total weight of a traditional side wall embedded plate, a side wall hanging plate, a chassis embedded plate and a side wall inner sealing plate through the arrangement of the hollow cavity, so that the weight reduction function of a car body structure of a passenger car is realized, and the requirement of car body weight reduction is met; the internal face department in adaptation, fretwork chamber is connected with many strengthening ribs, through the connection of strengthening rib with the intensity and the rigidity of reinforcing section bar main part for this aluminum alloy automobile body connecting bridge section bar can accord with the user demand of city passenger train.

According to some embodiments of the utility model, the profile body is further provided with a downwardly extending second extension section, the second extension section being provided with a third connecting hole communicating left and right, the third connecting hole being for connection with the side frame.

The section bar main part still is equipped with the second extension section that extends down, and the second extension section of section bar main part can peg graft to between side wall skeleton and the chassis to improve the connection stability of section bar main part and side wall skeleton and chassis, and second extension section department still is equipped with the third connecting hole of controlling the intercommunication, and the setting of third connecting hole can supply rivet or screw thread piece to pass, in order to realize the connection of section bar main part lower extreme and side wall skeleton, the upper end and the lower extreme of section bar main part all are connected with side wall skeleton promptly, in order to improve the connection stability of section bar main part and side wall skeleton.

According to some embodiments of the utility model, the upper end of the profile body is provided with a first stop strip extending front and back, and the first stop strip is positioned above the first cavity; and/or the number of the groups of groups,

the lower extreme of section bar main part is equipped with and is the second stop strip that extends from beginning to end, and second stop strip is equipped with the draw-in groove of opening downwards, and second stop strip is located the below of second cavity.

Optionally, the upper end of the profile main body is provided with a first stop strip extending front and back, when the profile main body is attached to and connected with the side wall framework, the first stop strip and the side wall framework jointly enclose a concave groove, and the arrangement of the groove can be used for accommodating the lower edge of the side wall inner decorative plate, so that the lower edge of the inner decorative plate is not convenient to trim or fix compared with the traditional mounting structure, and the mounting efficiency is improved; optionally, the lower extreme of section bar main part is equipped with the second that is the fore-and-aft extension and the second tang strip is equipped with down open draw-in groove, the setting of draw-in groove can be used to the side edge of holding floor leather, receive the side edge of floor leather to draw-in groove department, thereby can improve the clean and tidy degree of floor leather, be favorable to avoiding needing to prune or fixed trouble to the side edge of floor leather, be favorable to improving installation effectiveness, the second tang strip is located the below of second cavity, the tie point of seat lower extreme and section bar main part is located the top of floor leather promptly, compare in traditional mounting structure, the seat need not to destroy the floor leather with the connection of section bar main part, be favorable to follow-up regulation, dismantlement to the seat.

According to some embodiments of the utility model, the profile body is further provided with a baffle, the lower end of which is connected to the first extension, the baffle being arranged at right angles to the first extension.

The section bar main part still is equipped with the baffle, and the lower extreme and the first extension section of baffle are connected, and the baffle is the right angle with first extension section and arranges, and when the bottom plate of chassis was laid, the workman can make the side border and the baffle butt of bottom plate, is favorable to keeping the inside clean and tidy degree of passenger train, and is favorable to avoiding traditional mounting structure to cause the problem appearance that destroys or need reprocess to the bottom plate.

In a second aspect, the present utility model also provides a seat mounting structure comprising an aluminum alloy body joint bridge profile as shown in the first aspect; the frame comprises a side wall framework and a bottom frame, the left end of the profile main body is connected with the side wall framework, and the lower end of the profile main body is connected with the bottom frame; the seat, its upper end is connected with first abaculus, and first abaculus can penetrate in the first cavity and be connected with the section bar main part, and the lower extreme of seat is connected with the second abaculus, and the second abaculus can penetrate in the second cavity and be connected with the section bar main part.

The seat mounting structure provided by the embodiment of the utility model has at least the following beneficial effects: during installation, a worker can connect the left end of the profile main body with the side wall framework through the first connecting hole, and then connect the lower end of the profile main body with the bottom frame through the second connecting hole, namely, the profile main body, the side wall framework and the bottom frame form a stressed common body, so that the strength and the rigidity of the whole vehicle framework can be effectively improved, particularly, the bending resistance and the torsional rigidity of the middle section framework of the vehicle are obviously improved, and compared with the traditional installation structure, the installation process is simplified, and the installation efficiency is improved; the upper end of the seat is provided with a first embedded block, the first embedded block can penetrate into the first cavity, the front and back positions of the seat in the vehicle can be conveniently adjusted by adjusting the front and back position relation between the first embedded block and the first cavity, and the upper end of the seat can be connected with the profile main body by locking the first embedded block and the profile main body; the lower end of the seat is provided with a second embedded block, the second embedded block can penetrate into the second cavity, the front and rear positions of the seat in the vehicle can be conveniently adjusted by adjusting the front and rear position relation between the second embedded block and the second cavity, and the lower end of the seat can be connected with the profile main body by locking the second embedded block and the profile main body; this seat mounting structure is through the function of this aluminum alloy automobile body connecting bridge section bar integrated traditional side wall embedded plate, side wall link plate, chassis embedded plate and side wall inner seal board, is favorable to increasing the operating space of seat installation to improve installation effectiveness, and compare in the mounting structure that traditional polylith steel sheet is connected, adopt this seat mounting structure to realize the installation of seat, be favorable to realizing the subtracting heavy to automobile body structure, accord with the user demand of automobile body lightweight.

According to some embodiments of the utility model, the seat further comprises a first bolt and a second bolt, wherein the upper end and the lower end of the seat are respectively provided with a first through hole and a second through hole, the first insert and the second insert are respectively provided with a first screw hole and a second screw hole, the first bolt can be in threaded connection with the first screw hole after passing through the first through hole and the first notch, and the second bolt can be in threaded connection with the second screw hole after passing through the second through hole and the second notch.

Specifically, this seat mounting structure still includes first bolt and second bolt, during the installation, the workman can pass first bolt and be connected with first screw part after the first perforation, and pass second bolt and be connected with second screw part after the second perforation, then pass first abaculus and second abaculus respectively in first cavity and the second cavity, sliding connection through first abaculus and first cavity and sliding connection of second abaculus and second cavity, thereby adjustable seat and aluminum alloy automobile body connect bridge section bar's front and back positional relationship, after adjusting in place, the workman accessible screws first bolt and second bolt, thereby fixed section bar main part and seat's relative positional relationship, realize seat and section bar main part stable connection promptly, the problem that the connection that causes the hindrance to first bolt and second bolt appears in the setting up of first notch, the bore of first notch is less than the internal diameter of first cavity, thereby can avoid appearing in the problem that first notch deviate from, the bore of second notch is less than the internal diameter of second cavity, thereby can avoid appearing in the second notch.

According to some embodiments of the utility model, the seat comprises a first rod and a second rod, the first rod gradually slopes upwards from left to right, the second rod gradually slopes downwards from left to right, the lower end of the second rod is connected with the middle part of the first rod, and the lower end of the first rod and the upper end of the second rod are respectively connected with the lower end and the upper end of the profile body.

Specifically, the seat includes first pole and second pole, first pole is from left to right gradually upward sloping, the left end of first pole is high that is less than the right-hand member promptly, the left end of first pole can be connected with the lower extreme of section bar main part, and the right-hand member of first pole can be connected with the chair body of seat, with constitute oblique leg mounting structure, have the shank accommodation space of increase position passenger, reduce the unexpected touching of gesture passenger and the clear advantage of being convenient for, the second pole is from left to right gradually downward sloping, and the left end of second pole is high than the right-hand member height, the left end of second pole can be connected with the upper end of section bar main part, the middle part butt of second pole and first pole is favorable to improving the atress performance of seat.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a straight leg mounting structure provided in the prior art;

FIG. 2 is a schematic view of a prior art diagonal leg mounting structure;

FIG. 3 is an enlarged view of a portion of the diagonal leg mounting structure shown in FIG. 2 at A;

fig. 4 is a schematic structural view of an aluminum alloy vehicle body connecting bridge profile according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a seat mounting structure according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of a seat mounting structure at B shown in FIG. 5;

FIG. 7 is an enlarged view of a portion of a seat mounting structure at C shown in FIG. 5;

fig. 8 is a structural view of a first lever and a second lever of a seat mounting structure according to an embodiment of the present utility model.

Reference numerals:

110. a side frame; 111. an inner decorative plate; 120. a chassis; 121. floor leather; 122. a bottom plate; 210. a side wall embedded board; 220. a side wall hanging plate; 230. a chassis embedded plate; 240. a side wall inner sealing plate; 300. a profile body; 310. a first connection hole; 320. a second connection hole; 330. a first cavity; 331. a first notch; 340. a second cavity; 341. a second notch; 350. a first extension; 360. a hollow cavity; 370. reinforcing ribs; 380. a second extension; 381. a third connection hole; 391. a first stop strip; 392. a second stop strip; 393. a baffle; 410. a first slug; 420. a first bolt; 430. a second slug; 440. a second bolt; 500. a seat; 510. a first lever; 521. a first perforation; 520. a second lever; 511. a second perforation; 600. and (5) a decorative cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, a mounting structure of a conventional seat will be described. Comprises a straight leg installation structure and an inclined leg installation structure.

Referring to fig. 1, the legs of the straight leg mounting structure extend up and down, the upper ends of the legs are connected with the chair body, and the lower ends of the legs penetrate through the bottom plate 122 and the floor leather 121 and then are connected with the chassis pre-embedded plate 230 of the chassis 120. Referring to fig. 2, the legs of the diagonal leg mounting structure extend up and down, the upper ends of the legs are connected with the chair body, and the lower ends of the legs penetrate through the bottom plate 122 and the floor leather 121 and then are connected with the chassis pre-buried plate 230 of the chassis 120.

Referring to fig. 3, the mounting structures of both seats need to have a side wall pre-buried plate 210 pre-buried at the side wall skeleton 110, the side wall pre-buried plate 210 is connected with a side wall hanging plate 220, the upper end of the seat 500 is connected with the side wall hanging plate 220, and the lower end of the seat 500 is connected with the chassis pre-buried plate 230 of the chassis 120 after penetrating through the bottom plate 122 and the floor leather 121. The conventional seat mounting structure further requires the addition of the side inner seal plate 240 to close the gap between the side frame 110 and the side bottom frame 120, thereby blocking air, noise, dust, etc. outside the vehicle.

The mounting structure of the conventional seat includes at least the following drawbacks:

1. difficult to install

Because the traditional installation structure adopts an installation mode of firstly punching and tapping and then fixing by bolts, in order to ensure the installation strength, the side wall embedded plate 210, the side wall hanging plate 220 or the chassis embedded plate 230 generally need to adopt a steel plate with the thickness of 5mm or 6mm, and because the main body structure of the side wall skeleton 110 is made of aluminum alloy, the side wall hanging plate 220 or the side wall embedded plate 210 cannot be fixed on the aluminum alloy side wall skeleton 110 in a welding mode, and in order to ensure the installation strength, the side wall hanging plate 220 or the side wall embedded plate 210 can be fixed on the aluminum alloy side wall skeleton 110 only through high-strength rivet riveting or a special bolt connection structure; the mode has complex installation structure and low construction efficiency, and meanwhile, the condition that the side wall hanging plate 220, the side wall embedded plate 210 or the underframe embedded plate 230 cannot be increased because some places are limited by the operation space and the structure easily occurs.

2. Weight gain of the whole vehicle is obvious

In an aluminum alloy car body passenger car, one of the purposes of adopting an aluminum alloy car body structure is to reduce the weight of the whole car, but in order to meet the requirement of a seat 500 fixing structure, a side wall hanging plate 220 and a side wall embedded plate 210 are required to be added on a side wall, a bottom frame embedded plate 230 is required to be added on a bottom frame 120, and the side wall embedded plate 210, the side wall hanging plate 220 or the bottom frame embedded plate 230 generally need to adopt a steel plate with the thickness of 5mm or 6mm, and taking a 12-meter city passenger car as an example, the weight gain of the whole car is about 80KG on average, so that the weight reduction effect of adopting the aluminum alloy car body structure is greatly reduced.

3. Low installation efficiency

The existing installation structure needs to punch and tap holes on the side wall hanging plate 220, the side wall embedded plate 210 and the chassis embedded plate 230, and finally, the existing installation structure is fixed with the seat 500 by bolts, so that the punching and tapping efficiency is low, the working strength is high, and the loss of tools such as a drill bit, a screw tap and the like for tapping is high.

4. Subsequent disassembly, maintenance and position adjustment of the seat are difficult

Because the existing mounting structure adopts a punching, tapping and bolt fixing mode, the mode is basically equivalent to a one-time fixing mode, if the seat 500 is not required to be mounted to a proper position due to design errors or workshop workers' misoperation and the like in the production and mounting process of a vehicle, the seat 500 needs to be punched and tapped again at a new position for adjusting the position, but the integrity of the vehicle interior decoration plate 111, the floor leather 121 and the bottom plate 122 is damaged by the bolt holes punched before the seat 500 is adjusted, the existing hole sites are difficult to repair, the vehicle interior decoration effect is influenced even though the vehicle interior decoration effect is barely processed, and therefore, the corresponding interior decoration plate 111 and the floor leather 121 can only be replaced generally, and the two replacement reworking workload is huge. Meanwhile, after the vehicle is delivered, in the using process of the vehicle, the situation that the seat 500 needs to be disassembled, maintained, replaced or the position of the seat 500 is properly adjusted can occur, and the problem of huge workload exists.

The following describes with reference to fig. 4 to 8, and according to the seat mounting structure provided by the embodiment of the utility model, through structural design, the original mounting structure is simplified, the connection rigidity and strength of the vehicle body are improved, and the lightweight treatment of the vehicle body is facilitated.

As can be appreciated, referring to fig. 5, a seat mounting structure according to an embodiment of the present utility model includes: the aluminum alloy car body is connected with the bridge section bar, the car frame and the seat body.

Referring to fig. 6 and 7, the frame includes a side frame 110 and a bottom frame 120, where the side frame 110 may be a left side frame 110 or a right side frame 110, and the following description uses the side frame 110 as the left side frame 110, and the connection between the right side frame 110 and the bridge profile and the seat body of the vehicle body also belongs to the protection scope of the present utility model, but will not be described herein.

It will be appreciated that referring to fig. 4 and 5, the aluminum alloy body joint bridge profile includes a profile body 300, a first joint hole 310 is provided at the left end of the profile body 300, and a second joint hole 320 is provided at the lower end of the profile body 300. The arrangement of the first connecting hole 310 and the second connecting hole 320 can meet the use requirement of riveting or threaded connection of the profile main body 300 with the side frame 110 and the bottom frame 120.

During installation, referring to fig. 6 and 7, a worker can connect the left end of the profile main body 300 with the side frame 110 through the first connecting hole 310, and then connect the lower end of the profile main body 300 with the bottom frame 120 through the second connecting hole 320, namely, the profile main body 300, the side frame 110 and the bottom frame 120 form a stress joint body, so that the strength and rigidity of the whole vehicle frame can be effectively improved, and particularly, the bending resistance and torsional rigidity of the vehicle middle frame are obviously improved.

For example, in a low-step passenger car, the thickness of the chassis 120 of the passenger car is thin in the middle section, and the chassis 120 is easily broken at the middle section. The profile main body 300 of the seat mounting structure provided by the embodiment of the utility model extends forwards and backwards, and the profile main body 300 is connected to the middle section of the vehicle body, so that the strength and rigidity of the whole vehicle framework can be effectively improved, and particularly the bending resistance and torsional rigidity of the vehicle middle section framework are obviously improved.

Referring to fig. 6 and 7, the seat mounting structure is constructed such that the profile body 300 is integrally connected to the side frame 110 after passing through the first through hole 521 by using a high-strength rivet, and the profile body 300 is integrally connected to the bottom frame 120 after passing through the second through hole 511 by using a high-strength rivet.

It should be appreciated that in other embodiments, the seat mounting structure is threaded with a nut after passing through the first through hole 521 by a bolt to integrally connect the profile body 300 with the side frame 110, and the seat mounting structure is threaded with a nut after passing through the second through hole 511 by a bolt to integrally connect the profile body 300 with the bottom frame 120.

It will be appreciated that referring to fig. 6 and 7, in this embodiment, the seat mounting structure further includes a first insert 410, a second insert 430, a first bolt 420, and a second bolt 440.

The upper end of the profile main body 300 is provided with a first cavity 330 penetrating front and back, the first cavity 330 is communicated with a first notch 331 which is opened towards the right, and the caliber of the first notch 331 is smaller than the inner diameter of the first cavity 330. The lower end of the profile main body 300 is provided with a second cavity 340 penetrating front and back, the second cavity 340 is communicated with a second notch 341 which is opened towards the right, and the caliber of the second notch 341 is smaller than the inner diameter of the second cavity 340.

The upper end and the lower end of the seat 500 are respectively provided with a first through hole 521 and a second through hole 511, and the first insert 410 and the second insert 430 are respectively provided with a first screw hole and a second screw hole, when the first insert 410 and the second insert 430 respectively penetrate into the first cavity 330 and the second cavity 340, the first bolt 420 penetrates through the first through hole 521 and the first notch 331 and then is in threaded connection with the first screw hole, and the second bolt 440 penetrates through the second through hole 511 and the second notch 341 and then is in threaded connection with the second screw hole, so that the fixed connection between the profile main body 300 and the side wall skeleton 110 and the underframe 120 can be realized.

Referring to fig. 6 and 7, in the installation, a worker may connect the first bolt 420 with the first screw hole portion through the first through hole 521, connect the second bolt 440 with the second screw hole portion through the second through hole 511, and then insert the first insert 410 and the second insert 430 into the first cavity 330 and the second cavity 340, respectively, and adjust the front-rear positional relationship of the seat 500 with the aluminum alloy body connection bridge section bar by sliding the first insert 410 with the first cavity 330 and sliding the second insert 430 with the second cavity 340, thereby facilitating the disassembly, maintenance, replacement of the seat 500, or proper adjustment of the position of the seat 500.

After the adjustment, the worker can lock the relative positional relationship of the first insert 410, the profile body 300 and the seat 500 by screwing the first bolt 420, and can lock the relative positional relationship of the second insert 430, the profile body 300 and the seat 500 by screwing the second bolt 440, that is, the stable connection of the seat 500 and the profile body 300 is achieved.

This seat mounting structure is through the function of this aluminum alloy automobile body connecting bridge section bar integrated traditional side wall pre-buried board 210, side wall link plate 220, chassis pre-buried board 230 and side wall inner seal board 240, be favorable to increasing the operating space of seat 500 installation to improve installation effectiveness, and compare in the mounting structure that traditional polylith steel sheet is connected, adopt this seat mounting structure to realize the installation of seat 500, be favorable to realizing the weight reduction to the automobile body structure, take a 12 meters city passenger train as the example, average weight reduction 20KG accords with the user demand of automobile body lightweight.

Referring to fig. 4, the arrangement of the first notch 331 and the second notch 341 may avoid the occurrence of a problem of blocking the connection of the first bolt 420 and the second bolt 440, the caliber of the first notch 331 is smaller than the inner diameter of the first cavity 330, thereby avoiding the occurrence of a problem that the first slug 410 is separated from the first notch 331, the caliber of the second notch 341 is smaller than the inner diameter of the second cavity 340, and thereby avoiding the occurrence of a problem that the second slug 430 is separated from the second notch 341.

The first bolt 420 and the second bolt 440 are both pre-coated with thread anti-loosening glue, so that the connection stability of the first bolt 420 and the first embedded block 410 and the connection stability of the second bolt 440 and the second embedded block 430 are improved, and the risk of loosening of the first bolt 420 and the second bolt 440 is reduced.

It should be appreciated that in other embodiments, the first cavity 330 and the second cavity 340 may be open forward or rearward, i.e., the first insert 410 and the second insert 430 may only penetrate into the first cavity 330 and the second cavity 340 from one of the front end and the rear end, and the connection requirements of the first insert 410 and the second insert 430 with the profile body 300 may be satisfied.

It should be appreciated that in other embodiments, the first notch 331 may be opened upward, and the first bolt 420 may be screwed in the up-down direction after the first insert 410 penetrates the first cavity 330, so that the connection between the profile body 300 and the seat 500 may be achieved.

It should be understood that in other embodiments, the second notch 341 may be opened upward, and the second bolt 440 may be screwed in the up-down direction after the second insert 430 penetrates into the second cavity 340, so that the connection between the profile body 300 and the seat 500 may be achieved.

It can be appreciated that the seat mounting structure further includes a decorative cover 600, and when the seat 500 is connected to the profile main body 300, the decorative cover 600 can be covered at the first notch 331 and the second notch 341, thereby shielding and hiding the first notch 331 and the second notch 341, which is beneficial to improving the aesthetic property of the seat mounting structure.

It can be understood that, in the present embodiment, the first cavity 330 is provided with a first matching portion, the first matching portion is disposed near one end of the first slot 331, the first insert 410 is provided with a second matching portion, and the second matching portion is disposed near one end of the first screw hole; the first mating portion can mate with the second mating portion to limit rotation of the first slug 410 relative to the profile body 300.

Taking the first insert 410 and the first cavity 330 as an example, after the first insert 410 penetrates into the first cavity 330, the first matching portion and the second matching portion are relatively arranged, when the first bolt 420 is continuously screwed, the first matching portion can be embedded with the second matching portion, so that the positioning of the first insert 410 and the profile main body 300 is realized, the rotation of the first insert 410 and the profile main body 300 is limited, and when the first bolt 420 is completely locked, the first matching portion can be mutually engaged with the second matching portion, so that the stable connection between the upper end of the seat 500 and the profile main body 300 is realized.

Specifically, the first mating portion is a convex surface protruding toward the first insert 410, and is adapted, the second mating portion is a concave surface recessed away from the first screw hole, and the positioning of the profile main body 300 and the first insert 410 is facilitated by the mutual mating of the concave surface and the convex surface, and the rotation of the first insert 410 and the profile main body 300 is facilitated to be limited, so as to realize stable connection between the upper end of the seat 500 and the profile main body 300.

The mating of the second cavity 340 with the second slug 430 is consistent with the mating of the first cavity 330 with the first slug 410, and the mating of the second cavity 340 with the second slug 430 is not repeated here.

It will be appreciated that, since the upper end of the profile body 300 mainly receives the rightward pulling force of the seat 500 and the lower end of the profile body 300 mainly receives the downward pressing force of the seat 500, the first bolt 420 and the first insert 410 may have a size of M10, and the second bolt 440 and the second insert 430 may have a size of M8, which can reduce the manufacturing cost and weight while ensuring the stable connection between the seat 500 and the aluminum alloy body bridge profile.

It will be appreciated that referring to fig. 8, the seat 500 includes a first lever 510 and a second lever 520, the first lever 510 is gradually inclined upward from left to right, i.e., the left end of the first lever 510 is lower than the right end, the left end of the first lever 510 may be connected with the profile body 300, the second through hole 511 may be disposed at the left end of the first lever 510, and the right end of the first lever 510 may be connected with the seat body of the seat 500 to form a diagonal leg installation, so as to have the advantages of increasing the leg receiving space of a sitting occupant, reducing the accidental touch of the standing occupant, and facilitating cleaning, the second lever 520 is gradually inclined downward from left to right, and the left end of the second lever 520 is higher than the right end, the first through hole 521 may be disposed at the left end of the second lever 520, the left end of the second lever 520 may be used to achieve connection with the upper end of the profile body 300, and the right end of the second lever 520 is abutted with the middle of the first lever 510, which is beneficial for improving the stress performance of the seat 500.

The first penetration 521 may be provided at a riser provided at the left end of the second lever 520, and the second penetration 511 may be provided at a riser provided at the left end of the first lever 510. The right end of the first lever 510 and the right end of the second lever 520 may be coupled to the chair body by bolts.

It will be appreciated that referring to fig. 4, in this embodiment, specifically, the first notch 331 is opened to the right, the first connecting hole 310 is communicated with the left end of the first cavity 330, and the first notch 331 is opposite to the first connecting hole 310, when the connection between the profile body 300 and the side frame 110 needs to be achieved, a worker may pass the rivet through the first notch 331, and make the rivet pass through the profile body 300 and the side frame 110 at the first connecting hole 310, and then after riveting by a tool, stable connection between the profile body 300 and the side frame 110 may be achieved, and the first connecting hole 310 is provided at the left end of the first cavity 330, which is beneficial to achieve hiding of the first connecting hole 310 and the rivet after the first cavity 330 is connected with the seat 500.

It can be appreciated that the profile body 300 is further provided with a first extending section 350 extending towards the right, the arrangement of the first extending section 350 is beneficial to increasing the contact area between the profile body 300 and the chassis 120, and the second connecting hole 320 is arranged on the first extending section 350, which is beneficial to avoiding the problem that the connection between the connecting piece and the second connecting hole 320 is affected due to the arrangement of the object above the second connecting hole 320.

It can be appreciated that, referring to fig. 4, in order to further reduce the weight of the profile main body 300, a hollow cavity 360 is provided in the profile main body 300, and by the arrangement of the hollow cavity 360, the weight of the aluminum alloy vehicle body connecting bridge profile is smaller than the total weight of the traditional side wall embedded plate 210, the side wall hanging plate 220, the chassis embedded plate 230 and the side wall inner sealing plate 240, namely, the weight of the vehicle body framework is reduced, and the requirement of light weight of the vehicle body is met; the inner wall surface department in adaptation, fretwork chamber 360 is connected with many strengthening ribs 370, through the setting of strengthening rib 370 with the intensity and the rigidity of increase section bar main part 300 for this aluminum alloy automobile body connecting bridge section bar can accord with the user demand of city passenger train.

The reinforcing ribs 370 are arranged in a plurality of up-and-down mode, and the left end and the right end of the reinforcing ribs 370 are respectively connected with the left wall surface and the right wall surface of the hollow cavity 360. Of the two reinforcing ribs 370 adjacent to each other in the upper and lower directions, the two reinforcing ribs 370 are disposed in a crossing manner, thereby maintaining the stress properties of the left and right sides of the profile body 300.

It will be appreciated that referring to fig. 4 and 7, the profile body 300 is further provided with a downwardly extending second extension 380, and the second extension 380 is provided with a third connecting hole 381 communicating left and right, and the third connecting hole 381 is used for connecting with the side frame 110.

During installation, the worker can plug the second extension section 380 of the profile body 300 between the side frame 110 and the bottom frame 120, so that the connection stability of the profile body 300, the side frame 110 and the bottom frame 120 is improved, the rivet can pass through the third connecting hole 381, so that the connection between the lower end of the profile body 300 and the side frame 110 is realized, namely, the upper end and the lower end of the profile body 300 are connected with the side frame 110, and the connection stability of the profile body 300 and the side frame 110 is improved.

It should be noted that, the first extension section 350 and the second extension section 380 are each thin plate-shaped to achieve penetration and fixation of the rivet.

As can be appreciated, referring to fig. 4 and 6, in order to accommodate and fix the lower edge of the side inner decorative panel 111, the aluminum alloy body connecting bridge profile is provided with a first stopper bar 391 extending back and forth at the upper end of the profile body 300, and the first stopper bar 391 is located above the first cavity 330.

After the section main body 300 is attached to and connected with the side wall skeleton 110, the first opening stop strip 391 and the side wall skeleton 110 jointly enclose into a concave groove, and the setting of the concave groove can be used for accommodating the lower edge of the side wall inner decorative board 111.

It will be appreciated that referring to fig. 4 and 7, the side edges of the flooring 121 are received and secured for purposes of illustration. The lower end of the profile main body 300 is provided with a second stop strip 392 extending front and back, the second stop strip 392 is provided with a clamping groove which is opened downwards, and the second stop strip 392 is positioned below the second cavity 340.

The setting of draw-in groove can be used to the side border of holding floor leather 121, gathers the side border of floor leather 121 to draw-in groove department to can improve the clean and tidy degree of floor leather 121, be favorable to avoiding needing to prune or fix the trouble of side border of floor leather 121, be favorable to improving installation effectiveness.

The second stop bar 392 is located below the second cavity 340, i.e. the connection point between the lower end of the seat 500 and the profile body 300 is located above the floor leather 121, so that compared with the conventional installation structure, the connection between the seat 500 and the profile body 300 is not required to damage the floor leather 121, which is beneficial to adjusting the position of the seat 500.

It will be appreciated that, in order to achieve the covering of the bottom plate 122, the profile body 300 is further provided with a baffle 393, the lower end of the baffle 393 being connected to the first extension 350, the baffle 393 being arranged at right angles to the first extension 350.

When the bottom plate 122 of the chassis 120 is arranged in use, the side edges of the bottom plate 122 can be abutted against the baffle 393, so that the inside cleanliness of the passenger car is kept, and the problem that the bottom plate 122 needs to be damaged or reprocessed is avoided.

The second stop strip 392 is located above the baffle 393, when the worker realizes the connection between the bottom plate 122 and the aluminum alloy body connecting bridge profile, the floor leather 121 can be paved above the bottom plate 122, and the side edges of the floor leather 121 are converged into the clamping grooves of the second stop strip 392, so that the connection and fixation of the bottom plate 122 and the floor leather 121 are completed, and compared with the traditional installation mode, the installation efficiency is improved.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An aluminum alloy body joint bridge profile, comprising:

the novel side wall framework comprises a profile main body (300), wherein a first connecting hole (310) is formed in the left end of the profile main body, the first connecting hole (310) is used for being connected with a side wall framework (110), a second connecting hole (320) is formed in the lower end of the profile main body (300), and the second connecting hole (320) is used for being connected with a bottom frame (120); the upper end of the profile main body (300) is provided with a first cavity (330) penetrating forwards and/or backwards, the first cavity (330) is communicated with a first notch (331) which is opened upwards or rightwards, and the caliber of the first notch (331) is smaller than the inner diameter of the first cavity (330); the lower end of the profile main body (300) is provided with a second cavity (340) which is opened forwards and/or backwards, the second cavity (340) is communicated with a second notch (341) which is opened upwards or rightwards, and the caliber of the second notch (341) is smaller than the inner diameter of the second cavity (340).

2. The aluminum alloy vehicle body joint bridge section according to claim 1, wherein the first joint hole (310) communicates with a left end of the first cavity (330), the first notch (331) is opened to the right, and the first notch (331) is disposed opposite to the first joint hole (310).

3. The aluminum alloy body joint bridge profile according to claim 1, wherein the profile body (300) is further provided with a first extension section (350) extending rightward, and the second connection hole (320) is provided on the first extension section (350).

4. The aluminum alloy vehicle body connecting bridge profile according to claim 1, wherein a hollow cavity (360) is formed in the profile main body (300), and a plurality of reinforcing ribs (370) are connected to the inner wall surface of the hollow cavity (360).

5. The aluminum alloy vehicle body connecting bridge profile according to claim 1, wherein the profile body (300) is further provided with a second extension section (380) extending downward, the second extension section (380) is provided with a third connecting hole (381) communicating left and right, and the third connecting hole (381) is used for being connected with a side frame (110).

6. The aluminum alloy vehicle body connecting bridge section according to claim 1, wherein the upper end of the section main body (300) is provided with a first stop strip (391) extending front and back, and the first stop strip (391) is positioned above the first cavity (330); and/or the number of the groups of groups,

the lower extreme of section bar main part (300) is equipped with and is the second stop strip (392) that extends back and forth, second stop strip (392) are equipped with the draw-in groove that opens downwards, second stop strip (392) are located the below of second cavity (340).

7. An aluminium alloy car body connecting bridge section according to claim 3, characterized in that the section body (300) is further provided with a baffle (393), the lower end of the baffle (393) being connected to the first extension (350), the baffle (393) being arranged at right angles to the first extension (350).

8. A seat mounting structure is characterized by comprising,

the aluminum alloy body joint bridge profile of any one of claims 1-7;

the frame comprises a side wall framework (110) and a bottom frame (120), wherein the left end of the profile main body (300) is connected with the side wall framework (110), and the lower end of the profile main body (300) is connected with the bottom frame (120);

the seat (500), its upper end is connected with first abaculus (410), first abaculus (410) can penetrate in first cavity (330) and with section bar main part (300) are connected, the lower extreme of seat (500) is connected with second abaculus (430), second abaculus (430) can penetrate in second cavity (340) and with section bar main part (300) are connected.

9. The seat mounting structure according to claim 8, further comprising a first bolt (420) and a second bolt (440), wherein a first through hole (521) and a second through hole (511) are provided at an upper end and a lower end of the seat (500), respectively, the first insert (410) and the second insert (430) are provided with a first screw hole and a second screw hole, respectively, the first bolt (420) is threadably connected to the first screw hole after passing through the first through hole (521) and the first notch (331), and the second bolt (440) is threadably connected to the second screw hole after passing through the second through hole (511) and the second notch (341).

10. The seat mounting structure according to claim 8, wherein the seat (500) includes a first lever (510) and a second lever (520), the first lever (510) being gradually inclined upward from left to right, the second lever (520) being gradually inclined downward from left to right, a lower end of the second lever (520) being connected with a middle portion of the first lever (510), a lower end of the first lever (510) and an upper end of the second lever (520) being connected with a lower end and an upper end of the profile body (300), respectively.