CN204659525U - A kind of cushion frame - Google Patents

Abstract

The utility model discloses an automobile seat frame, which comprises an n-shaped frame integrally formed by thermoplastic composite materials, a reinforcing rib is arranged on the inside of the n-shaped frame; There is a backboard, the backboard adopts woven fiber + PP or adopts transverse continuous fiber yarn + PP prepreg. The utility model improves and optimizes the structure of the seat back frame, which can evenly disperse the stress points, prolong the stress time, and greatly reduce the maximum impact force. The overall stress situation has been significantly improved. The results of finite element analysis meet the safety standards for long-distance buses. Reduce the thickness of the backboard, save materials, reduce costs, safe and reliable, long life, and improve human comfort.

Description

a seat frame

technical field

The utility model relates to the technical field of seats, in particular to a seat of vehicles, trains, airplanes and other means of transportation and a backrest frame of an office chair. The backrest frame is the seat frame.

Background technique

Most of the traditional car seats are composed of metal skeleton and outsourcing. The metal backrest skeleton has problems such as difficult processing and complicated process. The electroplating process in anti-corrosion treatment will pollute the environment; moreover, it is heavy and expensive to manufacture, so it needs to be upgraded. Ordinary plastic seats or ordinary plastic skeleton seats have poor strength, are easily damaged, and have potential safety hazards, so they are not suitable for use as seats for high-speed cars, trains, airplanes and other transportation vehicles.

The impact force carried by the car seat frame is mainly affected by factors such as body weight and vehicle speed. For buses with obvious speed restrictions (generally, the speed does not exceed 70 km/h), ordinary plastic seats, including blow molding (injection molding) as a whole Seats are sufficient for use. But for the car with higher speed, such as long-distance bus or train, the traveling speed can be more than 70 km/h. Ordinary plastic seats or integral seats with ordinary plastic skeletons cannot meet the safety requirements of long-distance coaches or train seats. In the prior art, the patent documents with publication numbers CN101708699A and CN201951307U disclose car seat frames made of thermoplastic composite materials. These two patent documents disclose a frame structure, ribs, and frame materials. It is to improve the support strength of the skeleton. Its structure is to set honeycomb and cross-shaped reinforcing ribs in the "n"-shaped groove of the skeleton. Using the characteristics of "n"-shaped grooves for easy demoulding, combined with honeycomb and cross-shaped reinforcing ribs to improve " n"-shaped groove strength. Its shortcoming is that the structure is complex, the structure shape is single, the overall strength is insufficient, the force is unreasonable, and the problem of eliminating the instantaneous force of the backrest frame is not well solved. The patent document with the publication number CN102717740A has improved the problems existing in the above two patent documents during use. The technical problem to be solved by the utility model is to provide an automobile seat frame with a thinner transverse section thickness in view of the problem that the existing plastic seat frame has a thicker transverse section thickness. The structure of the utility model is integrally molded by plastic, and the skeleton has a shell extending along its circumference, a middle beam connecting the middle parts of the two sides of the shell and a bottom beam connecting the bottoms of the two sides of the shell. It is characterized in that, Reinforcing components are arranged on the inside between the upper part and the bottom of the two sides of the casing. The patent document is provided with an opening on one side of the "n"-shaped groove, and a reinforcing part is added to the opening. When the seat frame is impacted, the opening is subjected to the force of opening, so that the reinforcing ribs in the groove are not only under pressure, Moreover, due to the pulling force, the support advantage of the honeycomb skeleton is lost, and a supplementary solution to the above two patents is provided, that is, a reinforcing component is added at the opening. This literature does not solve the problem of improving the strength of the skeleton as a whole and eliminating the instantaneous force. In fact, when this kind of plastic seat is subjected to impact, because the inner side of the frame is pressed backwards and the outer side is not stressed, the frames on both sides are unevenly stressed or partially twisted and damaged. In addition, when the back of the human body exerts pressure backwards, the successive points of force on the skeleton are different. The main reason why the plastic seat is easily damaged is that the instantaneous load generated by the impact of the human body is large, which makes the upper and lower forces of the frames on both sides uneven, and often a certain force point has to bear the largest instantaneous impact force. After the above factors are superimposed, it will cause great damage to the plastic frame. Due to the force on the inner side of the frame and no force on the outer side, a twisting force is formed on the frames on both sides. The moment of impact is very short, and the impact force quickly reaches the maximum value. It is easy to exceed the load of the plastic seat, causing it to be damaged and shortened. service life. CN102717740A patent only solves part of the problems. However, there is no corresponding solution and enlightenment for the problem that the uneven upper and lower forces cause excessive local distortion and make the seat frame easy to be damaged. In addition, in this patent document, since the reinforcement component is not integrally formed with the frame groove, the effect on preventing the opening of the wide groove is still limited, and this solution complicates the structure and increases the cost.

In the prior art, there is no solution or suggestion for solving the problem that the plastic backrest frame is easily damaged due to excessive instantaneous load, nor does it provide a solution or technology for the problem of excessive local distortion of the plastic backrest frame due to uneven upper and lower forces enlightenment.

Utility model content

The utility model aims at the problems that the existing plastic seat back frame is easily damaged due to excessive instantaneous load and uneven upper and lower forces resulting in excessive local twisting force. A seat frame with a simple structure and high strength is provided, and a combination of the seat frame and the back board capable of evenly decomposing the local force of the back frame, so that the impact force of the human body is evenly distributed on the frames on both sides. In order to solve the above problems, the utility model provides the following technical solutions:

A seat frame is provided with a backboard on an n-shaped frame, and the backboard is located at the middle or bottom of the n-shaped frame. The back board is provided with honeycomb or grid-like or wavy or diamond-shaped back board reinforcing ribs. Or, the back board is made of high elastic material or mesh material, and is connected on the seat frame. The cross-section of the n-shaped frame is "U" or "V" or "H" or "king" or trapezoidal; in the "U" or "V" or "H" or " There are reinforcing ribs in the king-shaped or trapezoidal groove.

2. It is characterized in that there is a backboard on the n-shaped frame, and the backboard is located in the middle or lower part of the n-shaped frame;

Or, it is characterized in that there is a backboard made of highly elastic material or mesh material on the n-shaped frame;

Or, characterized by a backboard made of metal, plastic, synthetic material alone or in combination, on an n-shaped frame;

Or, it is characterized in that it is made of braided fiber + PP sheet, or made of transverse continuous fiber yarn + PP sheet, or made of braided fiber + nylon sheet on the n-shaped frame, or Backrest board made of transverse continuous fiber yarn + nylon sheet.

3. It is characterized in that the backboard is provided with honeycomb or grid-like or wavy or rhombus-shaped backboard reinforcing ribs; or, the backboard is provided with honeycomb-like or grid-like or wavy or diamond-shaped Backboard reinforcement ribs, the backboard reinforcement ribs are arranged on the back side of the backboard; or, the horizontal ends of the backboard are connected to the inner and outer frames of the frame, that is, the lateral ends of the backboard are connected to the inner and outer frames of the frame.

4. It is characterized in that the reinforcing ribs in the n-shaped frame are cross-shaped or wave-shaped or grid-shaped or honeycomb-shaped or stepped or convex nail-shaped; or, there is also a momentary response on the n-shaped frame Local stiffeners for impact forces.

5. It is characterized in that an armrest is provided on the upper part of the n-shaped frame; or, an armrest of the same material as the n-shaped frame is provided on the upper part of the n-shaped frame, and the armrest and the n-shaped frame are integrated into one body; or, the characteristic is that Mounting holes for connecting handrails are arranged on the upper part of the n-shaped frame.

6. It is characterized in that the back board and the n-shaped frame are integrated into one body; or, the back board is processed separately and assembled with the n-shaped frame.

7. It is characterized in that said assembling includes bolt connection or hook connection or binding connection piercing connection.

8. It is characterized in that the hook connection refers to setting hooks and hook eyes on the inner side of the n-shaped frame and the two ends of the backboard respectively, and the hook eyes on the backboard are connected to the hooks on the n-shaped frame; the binding connection refers to the backrest Eyelets are arranged at both ends of the board, and the backboard is connected to the n-shaped frame by ropes; the perforated connection refers to the installation of convex piles and eyelets on the inner side of the n-shaped frame and the two ends of the backboard respectively, and the holes on the backboard are connected to the n-shaped frame. The convex pile connection.

9. It is characterized in that the lower part of the n-shaped frame is provided with a bottom beam; or, it is characterized in that the lower part of the n-shaped frame is provided with a bottom beam of the same material as the n-shaped frame; or, it is characterized in that the lower part of the n-shaped frame A bottom beam of the same material as the n-frame is provided, and the bottom beam is integrated with the n-frame.

10. It is characterized in that there is a connection hole at the bottom of the n-shaped frame, and the connection hole is used for the connection between the seat frame and the vehicle body.

11. A manufacturing method of a seat frame, which is characterized in that the seat frame is processed into an n-shaped frame, and the cross section of the n-shaped frame is "U"-shaped or "V"-shaped or "H"-shaped or "king"-shaped Or trapezoidal; In the "U" shape or "V" shape or "H" shape or "King" shape or trapezoidal groove of the n-shaped frame, a reinforcing rib is provided.

Or, a backboard is provided on the n-shaped frame, and the backboard is located at the middle or lower part of the n-shaped frame;

Or, set a back board made of high elastic material or mesh material on the n-shaped frame;

Or, on the n-shaped frame, there is a backboard made of metal, plastic, synthetic materials alone or in combination;

Or, on the n-shaped frame, it is made of braided fiber + PP sheet, or made of transverse continuous fiber yarn + PP sheet, or made of braided fiber + nylon sheet, or made of transverse continuous fiber Backboard made of yarn + nylon sheet.

Or, it is characterized in that the back board is provided with a honeycomb or grid-like or wavy or diamond-shaped back board reinforcing rib; or, the back board is provided with a honeycomb or grid-like or wavy or diamond-shaped back board Reinforcing ribs, the reinforcing ribs of the backboard are arranged on the back side of the backboard; or, the lateral ends of the backboard are connected to the inner and outer frames of the frame, that is, the lateral ends of the backboard are connected to the inner and outer frames of the frame.

Or, it is characterized in that the reinforcing ribs in the n-shaped frame are cross-shaped or wavy or grid-shaped or honeycomb-shaped or stepped or convex nail-shaped; or, there is also a momentary response on the n-shaped frame. Local stiffeners for impact forces.

Or, it is characterized in that an armrest is provided on the upper part of the n-shaped frame; or, an armrest of the same material as the n-shaped frame is provided on the upper part of the n-shaped frame, and the armrest and the n-shaped frame are integrated into one body; or, it is characterized in that Mounting holes for connecting handrails are arranged on the upper part of the n-shaped frame.

Or, it is characterized in that the back board is integrated with the n-shaped frame to form an integral body; or, the back board is processed separately and assembled with the n-shaped frame.

Or, it is characterized in that said assembling adopts bolt connection or hook connection or binding connection or perforation connection.

Or, it is characterized in that the hooks are connected to the inner side of the n-shaped frame and the two ends of the backboard are respectively provided with hooks and hook eyes, and the hook eyes on the backboard are connected to the hooks on the n-shaped frame; the binding connection refers to the backboard Eyelets are arranged at both ends, and the backboard is connected to the n-shaped frame by ropes; the perforated connection refers to that protruding piles and eyelets are respectively arranged on the inside of the n-shaped frame and at both ends of the backboard, and the holes on the backboard are connected with the n-shaped frame. Lug connection.

Or, it is characterized in that the lower part of the n-shaped frame is provided with a bottom beam; or, it is characterized in that the lower part of the n-shaped frame is provided with a bottom beam of the same material as the n-shaped frame; or, it is characterized in that the lower part of the n-shaped frame A bottom beam of the same material as the n-frame is provided, and the bottom beam is integrated with the n-frame.

Or, it is characterized in that a connection hole is provided at the bottom of the n-shaped frame, and the connection hole is used for connecting the seat frame and the vehicle body.

Or, a method for manufacturing a seat frame, which is characterized in that it includes the following steps: (1) Bake the material for making the backboard until softened, and the material for making the backboard includes braided fiber + PP sheet or braided fiber + nylon sheet material or transverse continuous fiber yarn + PP sheet or transverse continuous fiber yarn + nylon sheet; (2) lay it in the mold of the n-shaped frame; (3) close the mold, and inject the back board and the n-shaped frame together ;

Or, a method for manufacturing a seat frame, which is characterized by comprising the following steps: (1) combining woven fiber + PP sheet or woven fiber + nylon sheet or transverse continuous fiber yarn + PP sheet or transverse continuous fiber yarn + The nylon sheet is baked until softened and used as the material for making the backboard; (2) laying it in the mold of the n-shaped frame, (3) adding the material of the n-shaped frame, and (4) pressing it together;

Or, a manufacturing method of a seat frame, which is characterized in that the backboard is separately made of elastic material or mesh material and installed on an n-shaped frame;

Or, a kind of manufacturing method of seat frame, it is characterized in that making cross-section is " U " shape or " V " shape or " H " shape or " king " shape or trapezoidal n-shaped frame, in the n-shaped frame In the "U" shape or "V" shape or "H" shape or "King" shape or trapezoidal or rectangular groove, set cross-shaped or step-shaped or wave-shaped or honeycomb-shaped or square-shaped or convex nail-shaped reinforcing ribs.

The n-shaped frame is made of thermoplastic composite material; or, the n-shaped frame is made of thermoplastic composite material; or, it is made of thermoplastic long-fiber composite material; the thermoplastic long-fiber composite material is: PP or nylon + fiber ; The fiber is glass fiber or carbon fiber or aramid fiber or natural plant fiber.

The seat frame is used for car seats, especially for high-speed cars.

A backboard is connected to the inside of the bottom from the middle of the two sides of the n-shaped frame, and the backboard is made of braided fiber+PP or transverse continuous fiber yarn+PP prepreg. The backboard has a certain degree of elasticity, which can play the role of cushioning, absorbing and dispersing the impact force, thereby prolonging the bearing time, gradually transmitting the impact force to the whole frame on both sides, greatly reducing the maximum impact force, and ensuring the safety of the n-shaped frame sex. Since the backboard is made of woven fiber + PP or transverse continuous fiber yarn + PP prepreg, the backboard can be made thinner under the condition of ensuring sufficient strength, and the thickness of the backboard can be 0.2-2.0 mm. The board is in a curved structure matching the frames on both sides.

The wall thickness of the n-shaped frame is 4-8 mm, and the thickness of the reinforcing rib is 3-5 mm. The reinforcing ribs located in the n-shaped frame are cross-shaped (serrated) reinforcing ribs, or wave-shaped reinforcing ribs, or grid-shaped reinforcing ribs, or honeycomb-shaped reinforcing ribs, or step-shaped reinforcing ribs. Mounting holes for connecting handrails are arranged on the cross braces on the upper part of the n-shaped frame. The cross brace can be made of the same material as the seat frame and integrally formed (accurate positioning can be achieved, and the shortcomings of insufficient metal welding precision in the past can be avoided). The assembly hole can have a metal plate, or use woven fiber+PP or use transverse continuous fiber yarn+PP prepreg. Reinforcing ribs can also be added inside the assembly holes, and the reinforcing ribs are honeycomb, grid or wavy. The lower side of the n-shaped frame is connected with a bottom beam, which acts as a reinforcement or a connection, and the bottom beam can be integrally formed with the n-shaped frame. The bottom of the n-shaped frame is provided with connecting holes, which can be used for connecting the seat frame with the vehicle body. Other equipment or connectors at the lower part of the frame can also be connected to the frame by bolts. A shaft sleeve can be set in the connecting hole. The back board can also be made of elastic material or mesh material, and connected to the seat frame; said elastic material or mesh material can be made of metal or/and plastic or/and synthetic material.

The seat frame is used for car seats.

Beneficial effects of the utility model: the utility model improves and optimizes the structure and material of the seat back frame. The utility model bears the impact of the human body by means of the backboard, and its plate structure can evenly disperse the stress points. Both sides of the backboard sheet are fixedly connected to the frame, which has a certain degree of elasticity, and can play the role of buffering, absorbing and dispersing the impact force, thereby prolonging the load-bearing time, gradually transmitting the impact force to the whole frame on both sides, and greatly reducing the impact force. Highest impact strength for the safety of the n-frame. The back board transmits the load to the two side frames of the n-shaped frame, so that the upper and lower forces of the n-shaped frame are evenly stressed. Thereby the overall stress situation of the utility model has been obviously improved. Through the finite element analysis, draw the result, confirm that the utility model meets the long-distance bus safety standard.

In this utility model, special treatment is also done to the backboard, using braided fiber + PP or nylon, or using transverse continuous fiber yarn + PP prepreg or nylon, 1) high fiber content and high strength; 2) uninterrupted continuous fiber , high impact strength; 3) The use of thinner sheets can significantly reduce the thickness of the backboard, save materials and reduce costs. The combination of the seat frame and the backboard, which can evenly decompose the partial force of the backrest frame, makes the impact force of the human body evenly distributed on the frames on both sides.

The utility model provides a seat frame with simple structure and high strength, the modified structure is reasonable, can be used instead of the metal frame, is safe and reliable, and has a long service life. Not only is it lighter in weight than metal skeletons, but it is also easy to process and recycle. The board-type buffer structure using fiber-reinforced composite materials can also improve the comfort of the human body.

Description of drawings

Fig. 1 is one of three-dimensional structure schematic diagram of the present utility model;

Figure 2 is a schematic front view of Figure 1;

Fig. 3 is a schematic side view of Fig. 1;

Figure 4 is a schematic view of the back of Figure 1;

Fig. 5 is the second three-dimensional structure schematic diagram of the utility model;

Fig. 6 is a partial cross-sectional structural schematic diagram of Fig. 5;

Fig. 7 is a rear view schematic diagram of Fig. 5;

Fig. 8 is the third three-dimensional structure schematic diagram of the utility model;

Fig. 9 is a rear view schematic diagram of Fig. 8;

Fig. 10 is a schematic diagram of the n-shaped frame structure in Fig. 5;

Fig. 11 is a schematic diagram of the structure of the backboard in Fig. 5;

Figure 12 is a side view of the backboard in Figure 11;

Fig. 13 is one of the schematic diagrams of the A-A sectional structure of Fig. 2;

Fig. 14 is the second schematic diagram of the A-A sectional structure of Fig. 2;

Fig. 15 is the third schematic diagram of the A-A sectional structure of Fig. 2;

Fig. 16 is the fourth schematic diagram of the cross-sectional structure of A-A in Fig. 2;

Fig. 17 is the fifth schematic diagram of the A-A sectional structure of Fig. 2;

Fig. 18 is the sixth schematic diagram of the cross-sectional structure of A-A in Fig. 2;

Fig. 19 is one of the schematic diagrams of the B-direction structure in Fig. 13;

Fig. 20 is the second schematic diagram of the B-direction structure in Fig. 13;

Fig. 21 is the third schematic diagram of the B-direction structure in Fig. 13;

Fig. 22 is the fourth schematic diagram of the structure in direction B of Fig. 13;

Fig. 23 is the fifth schematic diagram of the structure in direction B of Fig. 13;

Fig. 24 is a schematic perspective view of the three-dimensional structure of Fig. 20;

Fig. 25 is a schematic perspective view of the three-dimensional structure of Fig. 21;

Figure 26 is a schematic perspective view of the three-dimensional structure of Figure 19;

Fig. 27 is a schematic diagram of the three-dimensional structure of Fig. 22 and Fig. 27;

Fig. 28 is a schematic perspective view of the three-dimensional structure of Fig. 23 and Fig. 28;

Fig. 29 is a bottom view of the n-shaped frame corresponding to Fig. 14;

Figure 30 is a bottom view of the n-shaped frame corresponding to Figure 15;

Figure 31 is a bottom view of the n-shaped frame corresponding to Figure 16;

Fig. 32 is a structural schematic diagram of a rhombus reinforcing rib of the backboard;

Fig. 33 is a schematic structural view of the corrugated ribs of the backboard;

Fig. 34 is a schematic diagram of the grid-like rib structure of the backboard;

Fig. 35 is a schematic diagram of the honeycomb rib structure of the backboard;

Fig. 36 is the second schematic diagram of the back of Fig. 1;

Fig. 37 is the fourth three-dimensional structure schematic diagram of the utility model;

Fig. 38 is the fifth perspective view of the utility model;

Fig. 39 is the sixth schematic view of the three-dimensional structure of the utility model;

Figure 40 is a schematic diagram of the n-type frame of Figure 39;

Figure 41 is the seventh schematic view of the three-dimensional structure of the utility model;

Fig. 42 is the eighth schematic view of the three-dimensional structure of the utility model;

FIG. 43 is a schematic diagram of the n-type frame of FIG. 42 .

In the figure, the number 1 is an n-shaped frame, 1a is a "U"-shaped section, 1b is a "V"-shaped section, 1c is an "H"-shaped section, 1d is a "king"-shaped section, 1e is a trapezoidal section, and 2 is a backrest. Plate, 3 is the assembly hole, 4 is the bottom beam, 5 is the two-way L-shaped buckle head, 6 is the bushing, 7 is the reinforcement rib, 7a is the cross-shaped reinforcement rib, 7b is the wave-shaped reinforcement rib, 7c is the square shape Reinforcing ribs, 7d is a honeycomb reinforcing rib, 7e is a step-shaped reinforcing rib, 8 is a connecting hole, 9a is a diamond-shaped reinforcing rib for the back board, 9b is a corrugated rib for the back board, 9c is a grid-shaped reinforcing rib for the back board, 9d Be the honeycomb reinforcing bar of backboard, 10 is mounting hole, 11 is bolt, and 12 is flanging, and 13 is strap, and 14 is convex pile, and 15 is inner frame, and 16 is convex nail shape, and 17 is outer frame.

Detailed ways

Embodiment 1: The first car seat frame, see Fig. 1-Fig. 4, an n-shaped frame 1 integrally formed by plastic material, its cross section is "U" shape (or "V" shape, or " H" shape, or "king" shape, or trapezoidal) structure, a reinforcing rib 7 is arranged inside the n-shaped frame 1, and the reinforcing rib 7 is a continuous cross-shaped reinforcing rib 7, or a wave-shaped reinforcing rib 7, or Grid-like or convex nail-like reinforcing ribs 7. The thickness of the U-shape is 4-8mm, and the thickness of the ribs inside the U-shape is 3-5mm, which meets the requirements of the mechanical test of the seat frame. The width of the n-shaped frame 1 is 20-40mm, and the groove width of its cross section is 15-35mm.

A backboard 2 is connected to the inside of the two sides of the n-shaped frame 1 from the middle to the bottom, and the backboard 2 is made of braided fiber + PP. Backrest board 2 is arc-shaped board. Its upper width is greater than the lower width. The 2 sheets of the backboard are used to directly bear the impact of the human body, and the plate structure can evenly disperse the stress points. In addition, the 2 sheets of the backrest board are fixed up and down, thereby having certain cushioning properties, prolonging the load-bearing time, and greatly reducing the maximum impact force.

The height of the backboard 2 is 200-350 mm, but the thickness can be 0.2-2.0 mm, and the consumables are less when the strength requirements are met. In addition, the outer side of the backboard 2 may also be provided with reinforcing ribs, or may not be provided with reinforcing ribs, and the backboard 2 is an arc-shaped structure protruding forward.

The back board 2 transmits the load to the frame positions on both sides of the n-shaped frame 1, so that the upper and lower forces of the n-shaped frame 1 are uniform. In this embodiment, the overall stress situation has been significantly improved, and the results of finite element analysis meet the safety standards for long-distance buses.

And the upper part of the n-shaped frame or the rear side of the upper part of the n-shaped frame is provided with an assembly hole for connecting the armrest; the cross brace can be made of the same material as the n-shaped frame, and can be integrally formed with the seat frame. Or, the upper part of the n-shaped frame 1 is provided with an inherent assembly hole 3 for attachment connection, or the assembly hole 3 and the n-shaped frame 1 are integrally demoulded to form an integrated structure, which can achieve accurate positioning and avoid metal welding in the past The disadvantage of insufficient precision. Mounting holes are provided on the mounting hole position 3 for connecting handles. The material of the assembly hole 3 can be a metal plate, or woven fiber + PP or transverse continuous fiber yarn + PP prepreg. In addition, reinforcing ribs can also be added inside the assembly holes, and the reinforcing ribs are in the shape of honeycomb, grid or wave.

Bottoms of both sides of the n-shaped frame 1 are also transversely connected with bottom beams 4 . The bottom of the n-shaped frame is provided with a connecting hole 8, and the connecting hole 8 is used for connecting the seat frame and the vehicle body. A shaft sleeve 6 can be sleeved in the connecting hole 8 . The parts in contact between the shaft sleeve 6 and the plastic require anti-skid treatment, and the shaft sleeve uses Q235, which has anti-rust treatment. The connecting hole 6 is used for connecting and fixing the metal parts, and the height of the skeletons on both sides of the metal parts fixing position is 25-50 mm. The utility model has the advantages of simple overall structure, small space occupation and low cost. The door frame is integrally formed with thermoplastic composite materials. The safety belt is fixed on the outer side of the bolt connecting the frame and the metal parts, and the force analysis can meet the strength requirement.

Embodiment 2: The second automobile seat frame, see Fig. 1-Fig. 4, the content is basically the same as that of Embodiment 1, the difference is: the backboard 2 adopts transverse continuous fiber yarn + PP prepreg.

Embodiment 3: The third kind of automobile seat frame, see Fig. 5, Fig. 6 and Fig. 7, the content is basically the same as that of Embodiment 1, the difference is: the back board and the n-shaped frame are assembled, and the back board is on both sides Set the flanging 12, referring to Fig. 7, the width of the flanging 12 is adapted to the width of the n-shaped frame. After the flanges 12 on both sides of the backboard 2 are fitted on the inner sides of the two frames of the n-shaped frame 1, they are fixed by bolts 11, as shown in FIG. 5 .

Embodiment 4: The fourth car seat frame, see Fig. 8-Fig. 12, the content is basically the same as that of Embodiment 1, the difference is: the backrest board and the n-shaped frame are assembled, inside the two frames of the n-shaped frame Two-way button heads 5 are respectively provided, see FIG. 10 . Mounting holes 10 are respectively provided on both sides of the backboard, see FIG. 11 . Each mounting hole is matched and fastened with the corresponding two-way button head 5, see Fig. 8 and Fig. 9 .

Embodiment 5: The fifth kind of automobile seat frame, see Fig. 2, Fig. 13, Fig. 19 and Fig. 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame is U-shaped, see Fig. 13. A reinforcing rib is provided in the U-shaped groove, as shown in Fig. 19 and Fig. 26, the reinforcing rib is a cross-shaped reinforcing rib 7a.

Embodiment 6: The sixth automobile seat frame, see Figure 2, Figure 12, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference is: The cross section of the n-shaped frame is U-shaped, see FIG. 13 . A reinforcing rib is arranged in the U-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a wave-shaped reinforcing rib 7b.

Embodiment 7: The seventh automobile seat frame, see Fig. 2, Fig. 13 and Fig. 21, the content is basically the same as that of embodiment 1, the difference is: the content is basically the same as that of embodiment 1, the difference is: the n-shaped frame The cross-section is U-shaped, see Figure 13. A reinforcing rib is arranged in the U-shaped groove, as shown in FIG. 21 , the reinforcing rib is a grid-shaped reinforcing rib 7c.

Embodiment 8: The eighth automobile seat frame, see Fig. 2, Fig. 13 and Fig. 22, Fig. 27, the content is basically the same as that of embodiment 1, the difference is: the content is basically the same as that of embodiment 1, the difference is: The cross section of the n-shaped frame is U-shaped, see FIG. 13 . A reinforcing rib is arranged in the U-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a honeycomb-shaped reinforcing rib 7d.

Embodiment 9: The ninth car seat frame, see Fig. 2, Fig. 13 and Fig. 23, Fig. 28, the content is basically the same as that of embodiment 1, the difference is: the content is basically the same as that of embodiment 1, the difference is: The cross section of the n-shaped frame is U-shaped, see FIG. 13 . A reinforcing rib is arranged in the U-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a stepped reinforcing rib 7e.

Embodiment 10: The tenth automobile seat frame, see Fig. 2, Fig. 14, Fig. 29, Fig. 19, Fig. 26 and Fig. 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame It is V-shaped, see Figure 14 and Figure 29. A reinforcing rib is arranged in the V-shaped groove, referring to Fig. 19 and Fig. 26, the reinforcing rib is a cross-shaped reinforcing rib 7a.

Embodiment 11: The eleventh automobile seat frame, see Figure 2, Figure 14, Figure 29, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is V-shaped, see Fig. 14 and Fig. 29 . A reinforcing rib is arranged in the V-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a wave-shaped reinforcing rib 7b.

Embodiment 12: The twelfth automobile seat frame, see Figure 2, Figure 14, Figure 29 and Figure 21, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference is : The cross section of the n-shaped frame is V-shaped, see Fig. 14 and Fig. 29. A reinforcing rib is arranged in the V-shaped groove, as shown in FIG. 21 , the reinforcing rib is a grid-shaped reinforcing rib 7c.

Embodiment 13: The thirteenth kind of car seat frame, see Figure 2, Figure 14, Figure 29 and Figure 22, Figure 27, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is V-shaped, see Fig. 14 and Fig. 29 . A reinforcing rib is arranged in the V-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a honeycomb-shaped reinforcing rib 7d.

Embodiment 14: The fourteenth car seat frame, see Figure 2, Figure 14, Figure 29 and Figure 23, Figure 28, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is V-shaped, see Fig. 14 and Fig. 29 . A reinforcing rib is arranged in the V-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a stepped reinforcing rib 7e.

Embodiment 15: The fifteenth kind of automobile seat frame, see Fig. 2, Fig. 15, Fig. 30, Fig. 19 and Fig. 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame is H shape, see Figure 15 and Figure 30. A reinforcing rib is arranged in the H-shaped groove, referring to Fig. 19 and Fig. 26, the reinforcing rib is a cross-shaped reinforcing rib 7a.

Embodiment 16: The sixteenth automobile seat frame, see Figure 2, Figure 15, Figure 30, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is H-shaped, see Fig. 15 and Fig. 30 . A reinforcing rib is arranged in the H-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a wave-shaped reinforcing rib 7b.

Embodiment 17: The seventeenth automobile seat frame, see Figure 2, Figure 15, Figure 30 and Figure 21, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference is : The cross section of the n-shaped frame is H-shaped, see Fig. 15 and Fig. 30 . A reinforcing rib is arranged in the H-shaped groove, as shown in FIG. 21 , the reinforcing rib is a grid-shaped reinforcing rib 7c.

Embodiment 18: The eighteenth automobile seat frame, see Figure 2, Figure 15, Figure 30 and Figure 22, Figure 27, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is H-shaped, see Fig. 15 and Fig. 30 . A reinforcing rib is arranged in the H-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a honeycomb-shaped reinforcing rib 7d.

Embodiment 19: The nineteenth car seat frame, see Figure 2, Figure 15, Figure 30 and Figure 23, Figure 28, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, The difference is that the cross section of the n-shaped frame is H-shaped, see Fig. 15 and Fig. 30 . A reinforcing rib is arranged in the H-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a stepped reinforcing rib 7e.

Embodiment 20: The twentieth kind of car seat frame, see Fig. 2, Fig. 16, Fig. 31, Fig. 19 and Fig. 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame is king shape, see Figure 16 and Figure 31. A reinforcing rib is arranged in the king-shaped groove, referring to Fig. 19 and Fig. 26, the reinforcing rib is a cross-shaped reinforcing rib 7a.

Embodiment 21: The twenty-first car seat frame, see Figure 2, Figure 16, Figure 31, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1 , the difference is that the cross section of the n-shaped frame is king-shaped, see Fig. 16 and Fig. 31 . A reinforcing rib is arranged in the king-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a wave-shaped reinforcing rib 7b.

Embodiment 22: The twenty-second car seat frame, see Figure 2, Figure 16, Figure 31 and Figure 21, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: the cross section of the n-shaped frame is king-shaped, see Figure 16 and Figure 31. A reinforcing rib is arranged in the king-shaped groove, referring to Fig. 21, the reinforcing rib is a grid-shaped reinforcing rib 7c.

Embodiment 23: The twenty-third type of car seat frame, see Figure 2, Figure 16, Figure 31 and Figure 22, Figure 27, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1 , the difference is that the cross section of the n-shaped frame is king-shaped, see Fig. 16 and Fig. 31 . A reinforcing rib is arranged in the king-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a honeycomb-shaped reinforcing rib 7d.

Embodiment 24: The twenty-fourth automobile seat frame, see Figure 2, Figure 16, Figure 31 and Figure 23, Figure 28, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1 , the difference is that the cross section of the n-shaped frame is king-shaped, see Fig. 16 and Fig. 31 . A reinforcing rib is arranged in the king-shaped groove, referring to Fig. 20 and Fig. 24, the reinforcing rib is a step-shaped reinforcing rib 7e.

Embodiment 25: The twenty-fifth car seat frame, see Figure 2, Figure 17, Figure 19 and Figure 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame is trapezoidal, see Figure 17. Reinforcing ribs are arranged in the trapezoidal groove, referring to Fig. 19 and Fig. 26, the reinforcing ribs are cross-shaped reinforcing ribs 7a.

Embodiment 26: The twenty-sixth car seat frame, see Figure 2, Figure 17, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: The cross section of the n-shaped frame is trapezoidal, see Figure 17. Reinforcing ribs are arranged in the trapezoidal groove, referring to Fig. 20 and Fig. 24, the reinforcing ribs are wave-shaped reinforcing ribs 7b.

Embodiment 27: The twenty-seventh car seat frame, see Figure 2, Figure 17 and Figure 21, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference is: n The cross section of the frame is trapezoidal, see Figure 17. A reinforcing rib is arranged in the trapezoidal groove, as shown in FIG. 21 , the reinforcing rib is a grid-shaped reinforcing rib 7c.

Embodiment 28: The twenty-eighth car seat frame, see Figure 2, Figure 17 and Figure 22, Figure 27, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: The cross section of the n-shaped frame is trapezoidal, see Figure 17. Reinforcing ribs are arranged in the trapezoidal grooves, referring to Fig. 20 and Fig. 24, the reinforcing ribs are honeycomb-shaped reinforcing ribs 7d.

Embodiment 29: The twenty-ninth car seat frame, see Figure 2, Figure 17 and Figure 23, Figure 28, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: The cross section of the n-shaped frame is trapezoidal, see Figure 17. Reinforcing ribs are arranged in the trapezoidal groove, see Fig. 20 and Fig. 24, the reinforcing ribs are step-shaped reinforcing ribs 7e.

Embodiment 30: The 30th kind of car seat frame, see Figure 2, Figure 18, Figure 19 and Figure 26, the content is basically the same as that of Embodiment 1, the difference is: the cross section of the n-shaped frame is rectangular, see Figure 18. Reinforcing ribs are arranged in the rectangular slots, see Fig. 19 and Fig. 26, the reinforcing ribs are cross-shaped reinforcing ribs 7a.

Embodiment 31: The thirty-first car seat frame, see Figure 2, Figure 18, Figure 20 and Figure 24, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: The cross section of the n-shaped frame is rectangular, see Figure 18. Reinforcing ribs are arranged in the rectangular slots, referring to Fig. 20 and Fig. 24, the reinforcing ribs are wave-shaped reinforcing ribs 7b.

Embodiment 32: The thirty-second car seat frame, see Figure 2, Figure 18 and Figure 21, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference is: n The cross section of the frame is rectangular, see Figure 18. Reinforcing ribs are arranged in the rectangular slots, as shown in FIG. 21 , the reinforcing ribs are grid-shaped reinforcing ribs 7c.

Embodiment 33: The thirty-third type of car seat frame, see Figure 2, Figure 18 and Figure 22, Figure 27, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, and Yes: The cross section of the n-shaped frame is rectangular, see Figure 18. Reinforcing ribs are arranged in the rectangular slots, referring to Fig. 20 and Fig. 24, the reinforcing ribs are honeycomb-shaped reinforcing ribs 7d.

Embodiment 34: The thirty-fourth automobile seat frame, see Figure 2, Figure 18 and Figure 23, Figure 28, the content is basically the same as that of Example 1, the difference is: the content is basically the same as that of Example 1, the difference Yes: The cross section of the n-shaped frame is rectangular, see Figure 18. Reinforcing ribs are provided in the rectangular slots, see Fig. 20 and Fig. 24, the reinforcing ribs are step-shaped reinforcing ribs 7e.

Embodiment 35: The thirty-fifth automobile seat frame, see Figure 1 and Figure 32, the content is basically the same as that of Embodiment 2, the difference is that a reinforcing rib is provided on the back of the back board, and the reinforcing rib is diamond-shaped Tendon 9a.

Embodiment 36: The thirty-sixth automobile seat frame, see Fig. 1 and Fig. 33, the content is basically the same as that of Embodiment 2, the difference is that a reinforcing rib is arranged on the back of the backboard, and the reinforcing rib is wavy Rib 9b.

Embodiment 37: The thirty-seventh type of car seat frame, see Figure 1 and Figure 34, the content is basically the same as that of Embodiment 2, the difference is: a reinforcing rib is arranged on the back of the backboard, and the reinforcing rib is a grid Shape reinforcing rib 9c.

Embodiment 38: The thirty-eighth car seat frame, see Fig. 1 and Fig. 35, the content is basically the same as that of Embodiment 2, the difference is: a reinforcing rib is arranged on the back of the backboard, and the reinforcing rib is honeycomb-shaped Rib 9d.

Example 39: The forming process of the first automobile seat frame includes the following steps: (1) The material used for the back board: woven fiber + PP sheet, or woven fiber + nylon sheet, or transverse continuous fiber yarn + PP sheet, or transverse continuous fiber yarn + nylon sheet, baked until softened; (2) Lay it in the mold of the n-shaped frame of the car seat, (3) After closing the mold, it is connected with the skeleton material and injected together. The reinforcing ribs 6 contained in the n-shaped frame are honeycomb, grid, continuous cross or wave. The skeleton material is made of thermoplastic long-fiber composite material. The thermoplastic long-fiber composite material is: PP or nylon + fiber; the fiber is glass fiber or carbon fiber or aramid fiber or natural plant fiber.

Embodiment 40: The forming process of the second car seat frame, including the following steps: (1) according to the design requirements of the car seat n-frame, using a molding process to manufacture the car seat n-frame; (2) making the backrest Board material: woven fiber + PP sheet, or woven fiber + nylon sheet, or horizontal continuous fiber yarn + PP sheet, or horizontal continuous fiber yarn + nylon sheet, baked until softened; (3) Lay it In the mold of the n-shaped frame of the car seat, (4) is pressed together with the extruded skeleton material. The reinforcing ribs contained in the n-shaped frame are honeycomb, grid, continuous cross or wave. The skeleton material is made of thermoplastic long-fiber composite material. The thermoplastic long-fiber composite material is: PP or nylon + fiber; the fiber is glass fiber or carbon fiber or aramid fiber or natural plant fiber.

Example 41 and Example 42 are respectively the third and fourth forming processes of the car seat frame, with special treatment for the backboard, using woven fiber + PP sheet, or woven fiber + nylon sheet, or transverse Continuous fiber yarn + PP sheet, or transverse continuous fiber yarn + nylon sheet, set the bearing force in the direction of fiber extension, and the backboard has high strength. It can obviously reduce the thickness of the backboard, save materials and reduce costs; it is light in weight, easy to process and recycle, and improves the comfort of the human body.

Example 43: The forming process of the fifth automobile seat frame, the steps are the same as in Example 39, except that when the backrest is made of elastic material or mesh structure, the frame is processed first in step (4), and then the backrest is installed.

Embodiment 44: The forming process of the sixth automobile seat frame, the steps are the same as in Embodiment 40, except that the back board is separately made of elastic material or mesh material and installed on the n-shaped frame.

Embodiment 45: The seventh manufacturing method of the seat frame, which is characterized in that the cross-section is made into a "U"-shaped or "V"-shaped or "H"-shaped or "king"-shaped or trapezoidal n-shaped frame. In the "U" shape or "V" shape or "H" shape or "King" shape or trapezoidal or rectangular groove of the frame, set cross-shaped or stepped or wave-shaped or honeycomb-shaped or square-shaped or convex nail-shaped reinforcement ribs.

Embodiment 46: A seat frame is used for a car seat, especially for a large bus car seat.

Embodiment 47: Another car seat frame, see Fig. 1, Fig. 2, Fig. 3 and Fig. 36, the content is basically the same as that of Embodiment 1, the difference is that the two ends of the backboard are connected to the inside and outside of the frame The frame, that is, the lateral ends of the backboard are connected to the inner and outer frames of the frame.

Embodiment 48: Another car seat frame, see Figure 37, the content is basically the same as Embodiment 1, the difference is: the backrest board and the n-shaped frame are assembled together, and the assembly method is bound by straps 13 connect.

Embodiment 49: Another car seat frame, referring to Fig. 38, the content is basically the same as that of Embodiment 1, the difference is that: the perforated connection refers to setting convex piles 15 and Eyelets, the eyelets on the backboard are connected with the lugs 14 on the n-shaped frame.

Embodiment 50: Another car seat frame, see Fig. 39 and Fig. 40, the content is basically the same as that of Embodiment 1, the difference is: the n-shaped frame is also provided with local reinforcement to deal with the instantaneous impact force Rib frame15.

Embodiment 51: Another car seat frame, see FIG. 41 , the content is basically the same as that of Embodiment 1, except that the ribs in the n-shaped frame are in the shape of a cross or a spike 16 .

Embodiment 52: Another car seat frame, see Figure 42 and Figure 43, the content is basically the same as that of Embodiment 1, the difference is: the n-shaped frame is also provided with a local reinforcement to deal with the instantaneous impact force Rib border17.

The utility model optimizes the structure and size of the seat backboard frame and backboard. The thermoplastic composite material is PP containing 30% long glass fiber, the stress is lower than 80MPa, and the overall stress situation is obviously improved. When the backboard or the n-shaped frame is impacted, the backboard or the n-shaped frame and its internal ribs are stressed at the same time, which is relatively close to the overall force. The results of finite element analysis meet the safety standards for long-distance buses.

Claims (25)

1. A seat frame, comprising an n-shaped frame, characterized in that the n-shaped frame is provided with a backboard, and the backboard is positioned at the middle or bottom of the n-shaped frame. 2. The seat frame according to claim 1, characterized in that honeycomb or grid-like or wavy or diamond-shaped backrest reinforcement ribs are provided on the backrest. 3. The seat frame according to claim 1, characterized in that the back board is made of high elastic material or mesh material, and is connected to the seat frame. 4. The seat frame according to claim 1, characterized in that the backboard is made of metal, plastic, or synthetic materials alone or in combination, and is connected to the seat frame. 5. The seat frame according to claim 1, characterized in that the cross-section of the n-shaped frame is "U"-shaped or "V"-shaped or "H"-shaped or "king"-shaped or trapezoidal. 6. The seat frame according to claim 1, characterized in that in the "U" shape or "V" shape or "H" shape or "King" shape or trapezoidal groove of the n-shaped frame, reinforcing ribs are provided. 7. The seat frame according to claim 1, characterized in that the cross section of the n-shaped frame is "U"-shaped or "V"-shaped or "H"-shaped or "king"-shaped or trapezoidal; In "U" shape or "V" shape or "H" shape or "King" shape or trapezoidal groove, reinforcement ribs are arranged. 8. The seat frame according to claim 1, characterized in that the backrest board is provided with honeycomb or grid-like or wavy or diamond-shaped backrest board reinforcement ribs. 9. The seat frame according to claim 1, characterized in that the back board is provided with honeycomb or grid-like or wavy or diamond-shaped back board reinforcement ribs, and the back board reinforcement ribs are arranged on the back side of the back board. 10. The seat frame according to claim 1, wherein the lateral ends of the backboard are connected to the inner and outer frames of the frame, that is, the lateral ends of the backboard are connected to the inner and outer frames of the frame. 11. The seat frame according to claim 1, characterized in that the reinforcing ribs in the n-shaped frame are in the shape of a cross, a wave, a grid, a honeycomb, a step, or a spike. 12. The seat frame according to claim 1, characterized in that said n-shaped frame is also provided with local reinforcing ribs to cope with instantaneous impact force. 13. The seat frame according to claim 1, characterized in that an armrest is provided on the upper part of the n-shaped frame. 14. The seat frame according to claim 1, characterized in that an armrest of the same material as the n-shaped frame is provided on the upper part of the n-shaped frame, and the armrest and the n-shaped frame are integrated into one body. 15. The seat frame according to claim 1, characterized in that the upper part of the n-shaped frame is provided with assembly holes for connecting with armrests. 16. The seat frame according to claim 1, characterized in that the back board and the n-shaped frame are integrated into one body. 17. The seat frame according to claim 1, characterized in that said back board is processed separately and assembled with n-shaped frame. 18. The seat frame according to claim 17, characterized in that said assembling comprises bolting or hooking or binding or piercing. 19. The seat frame according to claim 18, characterized in that the hook connecting means is provided with hooks and hook eyes on the inner side of the n-shaped frame and the two ends of the backboard respectively, and the hook eyes on the backboard are connected with the hooks on the n-shaped frame. Hook connection. 20. The seat frame according to claim 18, characterized in that said binding connection refers to setting holes at both ends of the back board, and the back board is connected to the n-shaped frame by ropes. 21. The seat frame according to claim 17, characterized in that said perforated connection refers to the inner side of the n-shaped frame and the two ends of the backboard to respectively set convex piles and holes, the holes on the backboard and the holes on the n-shaped frame Lug connection. 22. The seat frame according to claim 1, wherein a bottom beam is provided at the lower part of the n-shaped frame. 23. The seat frame according to claim 1, wherein the lower part of the n-shaped frame is provided with a bottom beam of the same material as the n-shaped frame. 24. The seat frame according to claim 1, wherein the lower part of the n-shaped frame is provided with a bottom beam of the same material as the n-shaped frame, and the bottom beam and the n-shaped frame are integrated. 25. The seat frame according to claim 1, characterized in that the bottom of the n-shaped frame is provided with a connecting hole, and the connecting hole is used for connecting the seat frame and the vehicle body.