School bus seat framework

Abstract

The utility model provides a school bus seat framework, which belongs to the technical field of school bus seat production and comprises a seat framework, a back framework and a headrest framework, the back framework is connected with the seat framework and the headrest framework, a set angle is formed between the seat framework and the back framework, and the headrest framework is fixed at the top of the back framework; the back framework comprises a back frame pipe and seat framework connecting pipes, the back frame pipe is in an n shape, the two ends of the back frame pipe are connected with the seat framework connecting pipes through back reinforcing plates, and the two seat framework connecting pipes are fixed to the two ends of the seat framework respectively. According to the utility model, the connecting process of the school bus seat is greatly reduced, the production efficiency is improved, the phenomenon that the double backrests of the school bus seat are irregular is avoided, and the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of school bus seat production technology, and in particular relates to a school bus seat frame. Background Technology

[0002] The existing school bus seat frame has a separate connection between the back frame and the seat frame. During installation, the bolt holes on the back frame and the seat frame need to be aligned first. Then, one person holds the back frame to maintain a certain angle while another person removes the bolts for installation. The connection process is complicated, which greatly reduces production efficiency. Moreover, the backrests are prone to misalignment after connection, which seriously affects product quality. Utility Model Content

[0003] In view of the defects or deficiencies in the existing technology, this utility model provides a school bus seat frame, which greatly reduces the connection process of school bus seats, improves production efficiency, avoids the phenomenon of uneven backrests of two school bus seats, and improves product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An embodiment of this utility model provides a school bus seat frame, including a seat frame, a back frame, and a headrest frame. The back frame connects the seat frame and the headrest frame, and the seat frame and the back frame are at a set angle. The headrest frame is fixed to the top of the back frame.

[0006] The back frame includes a back frame tube and a seat frame connecting tube. The back frame tube is n-shaped, and both ends of the back frame tube are connected to the seat frame connecting tube through back reinforcing plates. The two seat frame connecting tubes are respectively fixed at both ends of the seat frame.

[0007] Furthermore, the seat frame includes a front seat steel and a rear seat steel, which are arranged in parallel, and the two ends of the front seat steel and the rear seat steel are connected by an armrest fixing plate.

[0008] Furthermore, a chair leg channel steel and a seat support plate are provided between the front seat steel and the rear seat steel. There are two chair leg channel steels and two seat support plates. The two chair leg channel steels are arranged in parallel, and their two ends are fixedly connected to the lower part of the front seat steel and the rear seat steel, respectively. The two seat support plates are arranged in parallel, and their two ends are fixedly connected to the upper part of the front seat steel and the rear seat steel, respectively.

[0009] Furthermore, multiple fixing pins are provided on the upper surface of the front steel section.

[0010] Furthermore, both ends of the front and rear steel sections are provided with side span angle steel, and bolt holes are provided on the side span angle steel.

[0011] Furthermore, a seat belt fixing plate is provided between the front seat steel and the rear seat steel. The seat belt fixing plate is located between the two seat support plates, and its two ends are fixedly connected to the front seat steel and the rear seat steel, respectively.

[0012] Furthermore, a middle back frame tube is provided in the middle of the back frame tube, the top of the middle back frame tube is fixedly connected to the top of the back frame tube, and the bottom is fixedly connected to the middle of the seat steel through a back reinforcing plate.

[0013] Furthermore, the back frame tube is also provided with multiple back support plates, which are arranged in parallel and perpendicular to the middle back frame tube, and both ends of the back support plates are fixedly connected to the back frame tube.

[0014] Furthermore, a back round steel is provided below the bottom back support plate. The two ends of the back round steel are fixedly connected to the back frame tube, and the back round steel is set perpendicular to the middle back frame tube.

[0015] Furthermore, the headrest frame includes multiple headrest frame tubes arranged side by side on the top of the back frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model fixes the back frame tube to the seat frame connecting tubes fixed at both ends of the seat frame through the back reinforcement plate, realizing the integrated design of the back frame and the seat frame. This achieves the lightweighting of the school bus seat, reduces production costs, and also reduces the connection process between the back frame and the seat frame, improving the production efficiency of the school bus seat, avoiding the phenomenon of uneven backrests for two people, and improving the product quality of the school bus seat.

[0018] 2. This utility model utilizes a back reinforcement plate to connect the back frame tube and the seat frame connecting tube, increasing the strength at the corner of the school bus seat, preventing breakage under large external forces, and reducing safety hazards. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the seat frame in an embodiment of this utility model;

[0020] The components include: 1. Side span angle steel; 2. Front seat steel; 3. Back frame tube; 4. Rear seat steel; 5. Back round steel; 6. Back support plate; 7. Headrest frame tube; 8. Middle back frame tube; 9. Back reinforcing plate; 10. Armrest fixing plate; 11. Chair leg channel steel; 12. Fixing pin; 13. Seat support plate; 14. Seat belt fixing plate; 15. Seat frame connecting tube. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] A typical embodiment of this utility model is as follows: Figure 1 As shown, a school bus seat frame includes a seat frame, a back frame, and a headrest frame. The back frame connects the seat frame and the headrest frame. The seat frame and the back frame are at a set angle. The headrest frame is fixed to the top of the back frame.

[0023] The seat frame includes a front seat steel section 2 and a rear seat steel section 4, which are arranged in parallel. The two ends of the front seat steel section 2 and the rear seat steel section 4 are connected by an armrest fixing plate 10, which is used to connect the seat armrests. The front seat steel section 2, the rear seat steel section 4, and the armrest fixing plate 10 form a rectangular structure. A chair leg channel steel 11 and a seat support plate 13 are arranged between the front seat steel section 2 and the rear seat steel section 4. There are two chair leg channel steels 11 and two seat support plates 13. The two chair leg channel steels 11 are arranged in parallel, and the two ends of the two chair leg channel steels 11 are fixedly connected to the lower part of the front seat steel section 2 and the rear seat steel section 4, respectively. The arrangement of the chair leg channel steels 11 improves the structural strength of the seat frame. The two seat support plates 13 are arranged in parallel, and the two ends of the two seat support plates 13 are fixedly connected to the upper part of the front seat steel section 2 and the rear seat steel section 4, respectively. The arrangement of the seat support plates 13 provides effective support for the seat.

[0024] Multiple fixing pins 12 are provided on the upper surface of the front steel section 2, which can realize the fixed connection between the seat frame and the seat.

[0025] Both ends of the front steel section 2 and the rear steel section 4 are provided with side span angle steel 1, and bolt holes are opened on the side span angle steel 1 to achieve a fixed connection with the school bus through bolts.

[0026] A seat belt fixing plate 14 is also provided between the front seat steel 2 and the rear seat steel 4. The seat belt fixing plate 14 is located between the two seat support plates 13. The two ends of the seat belt fixing plate 14 are fixedly connected to the front seat steel 2 and the rear seat steel 4 respectively. The seat belt fixing plate 14 has a V-shaped structure, which reduces the weight of the frame while ensuring strength.

[0027] The back frame includes a back frame tube 3 and a seat frame connecting tube 15. The back frame tube 3 is n-shaped. Both ends of the back frame tube 3 are connected to the seat frame connecting tube 15 through back reinforcing plates 9. The seat frame connecting tube 15 and the back frame tube 3 are at a set angle. By setting the back reinforcing plates 9, the strength at the corner can be increased, preventing breakage when subjected to large external forces and reducing safety hazards. The back reinforcing plates 9 are provided with mounting holes, which can be used to fix and install buckles at the optional seat belt location.

[0028] Two seat frame connecting pipes 15 are fixed at both ends of the seat frame and are set perpendicular to the front seat steel 2 and the rear seat steel 4. By setting the seat frame connecting pipes 15, the seat frame and the back frame are connected as one unit, which greatly reduces the connection process, improves production efficiency, avoids the phenomenon of uneven backrests for two people, and improves product quality.

[0029] A middle back frame tube 8 is provided in the middle of the back frame tube 3. The top of the middle back frame tube 8 is fixedly connected to the top of the back frame tube 3, and the bottom is fixedly connected to the middle of the seat steel 4 through the back reinforcing plate 9. By setting the middle back frame tube 8, the overall strength of the back frame tube 3 can be increased.

[0030] Multiple back support plates 6 are also provided on the back frame tube 3. In this embodiment, there are two back support plates 6. The two back support plates 6 are arranged in parallel and perpendicular to each other with the middle back frame tube 8. Both ends of the two back support plates 6 are fixedly connected to the back frame tube 3. By setting the back support plates 6, the support strength of the chair back can be enhanced. A back round steel 5 is provided below the bottom back support plate 6. Both ends of the back round steel 5 are fixedly connected to the back frame tube 3, and the back round steel 5 is set perpendicular to the middle back frame tube 8 to prevent the back frame from deforming.

[0031] The headrest frame includes multiple headrest frame tubes 7, which are arranged side by side on the top of the backrest frame. The headrest frame tubes 7 are n-shaped, which makes it easier to make the backrest shape into an arc-shaped headrest, and makes it easier to determine the number of seats compared to a row of backrests.

[0032] This utility model connects the back frame tube to the seat frame connecting tubes fixed at both ends of the seat frame through a back reinforcement plate, realizing an integrated design of the back frame and the seat frame. This achieves lightweighting of the school bus seat, reduces production costs, simplifies the connection process between the back frame and the seat frame, improves the production efficiency of the school bus seat, avoids the phenomenon of uneven backrests for two people, and improves the product quality of the school bus seat.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A school bus seat frame, characterized by, The seat framework, the back framework and the headrest framework are connected, the seat framework and the back framework are at a set angle, and the headrest framework is fixed at the top of the back framework. The back framework comprises a back frame tube and a seat framework connecting tube, the back frame tube is n-shaped, and the two ends of the back frame tube are connected with the seat framework connecting tube through back reinforcing plates.

2. A school bus seat frame as defined in claim 1, wherein The seat framework comprises a seat front section bar and a seat rear section bar, the seat front section bar and the seat rear section bar are arranged in parallel, and the two ends of the seat front section bar and the seat rear section bar are connected through armrest fixed plates.

3. A school bus seat frame as defined in claim 2 wherein, Chair leg channel steels and seat support plates are arranged between the seat front section bar and the seat rear section bar, the chair leg channel steels and the seat support plates are both provided with two, the two chair leg channel steels are arranged in parallel, the two ends of the two chair leg channel steels are fixedly connected with the lower parts of the seat front section bar and the seat rear section bar respectively, the two seat support plates are arranged in parallel, and the two ends of the two seat support plates are fixedly connected with the upper parts of the seat front section bar and the seat rear section bar respectively.

4. A school bus seat frame as defined in claim 2 wherein, A plurality of fixed pins are arranged on the upper surface of the seat front section bar.

5. A school bus seat frame as defined in claim 2 wherein, Edge span angle steels are arranged at the two ends of the seat front section bar and the seat rear section bar, and bolt holes are formed in the edge span angle steels.

6. A school bus seat frame as defined in claim 3 wherein, Safety belt fixed plates are further arranged between the seat front section bar and the seat rear section bar, the safety belt fixed plates are arranged between the two seat support plates, and the two ends of the safety belt fixed plates are fixedly connected with the seat front section bar and the seat rear section bar respectively.

7. A school bus seat frame as defined in claim 1 wherein, An intermediate back frame tube is arranged in the middle of the back frame tube, the top end of the intermediate back frame tube is fixedly connected with the top of the back frame tube, and the bottom is fixedly connected with the middle of the seat rear section bar through a back reinforcing plate.

8. A school bus seat frame as defined in claim 7 wherein, A plurality of back support plates are further arranged on the back frame tube, the plurality of back support plates are arranged in parallel and perpendicular to the intermediate back frame tube, and the two ends of the back support plates are fixedly connected with the back frame tube.

9. A school bus seat frame as defined in claim 8 wherein, A back round steel is arranged below the lowermost back support plate, the two ends of the back round steel are fixedly connected with the back frame tube, and the back round steel is arranged perpendicular to the intermediate back frame tube.

10. A school bus seat frame as defined in claim 1 wherein, The headrest framework comprises a plurality of headrest frame tubes, and the plurality of headrest frame tubes are arranged side by side at the top of the back framework.

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