Multifunctional bus seat back

Abstract

The utility model belongs to public traffic technical field especially relates to a multifunctional bus seat back, include: support, back body and tray, the back body's back surface fixed mounting has support, the tray is hinged with the inner wall of support and connects, the below hinged connection of tray has branch, the inner wall fixed connection of ear seat has slide rod, the outer surface sliding connection of slide rod has two clamping blocks, clamping block is located above the hole, the inner wall of two clamping blocks all is equipped with the clamping groove, the outside sleeve of slide rod has two groups first spring, the outer surface hinged connection of ear seat has swing arm, through the cooperation between ear seat, slide rod, clamping block and first spring, through first spring and provide elastic driving force for clamping block, two clamping blocks gather and have the intensity of clamping to paper cup or plastic cup when, tightly wrap paper cup or plastic cup in the inside of clamping groove, thereby improve the stability of paper cup or plastic cup.

Description

Technical Field

[0001] This utility model belongs to the field of public transportation technology, and in particular relates to a multifunctional bus seat back. Background Technology

[0002] The bus seat backrest is a core component for ensuring passenger safety and enhancing comfort. Its design and function revolve around three core objectives: "safety protection," "sitting support," and "humanized adaptation." These are the most basic and crucial functions of the seat backrest. In scenarios where buses frequently start and stop, and may experience sudden bumps or emergency braking, the seat backrest reduces the probability of passenger injury. The bus seat backrest is not just a "simple backrest," but a core component that integrates ergonomic support, humanized adaptation, and space optimization. Its design directly affects passenger safety, comfort, and experience, and is also an important manifestation of the "people-oriented" concept in public transportation vehicle design.

[0003] Currently, most bus seat backrests are designed to only support front-seat passengers and are isolated from rear-seat passengers, lacking practicality. Commuters often bring takeout meals on the bus to save time. While drinks are typically served in round disposable paper or plastic cups, the small trays on buses can hold them. However, the frequent stops and starts of buses cause drinks to tip over due to inertia, spilling the contents of the disposable paper or plastic cups. Therefore, we propose a multifunctional bus seat backrest. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional bus seat back to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a multifunctional bus seat back, comprising: a bracket, a back body and a tray, wherein the back body is fixedly installed inside the bracket, a support is fixedly installed on the back of the back body, the tray is hinged to the inner wall of the support, a support arm is hinged to the bottom of the tray, and a positioning mechanism is provided below the support arm. The tray has a through hole on its inner side. Two sets of lugs are fixedly connected to the upper surface of the tray, and the two sets of lugs are symmetrical. A slide rod is fixedly connected to the inner wall of the lug. Two clamping blocks are slidably connected to the outer surface of the slide rod, and the two clamping blocks are symmetrical. The clamping blocks are located above the through hole. The inner walls of the two clamping blocks are provided with slots. Two sets of first springs are sleeved on the outside of the slide rod, and the two sets of first springs are symmetrical. A swing arm is hinged to the outer surface of the lug. One end of the swing arm is hinged to one side of one of the clamping blocks, and the other end of the swing arm is hinged to one side of the other clamping block. Pull rings are fixedly connected to the outer surfaces of the two clamping blocks.

[0006] In this technical solution, the card slots inside the two clamping blocks provide a space to accommodate the paper cup or plastic cup, thus maintaining the stability of the paper cup or plastic cup.

[0007] In the above technical solution, furthermore, one end of each of the multiple sets of springs is fixedly connected to one side of the clamping block, and the other end of each of the multiple sets of springs is fixedly connected to one side of the ear seat.

[0008] In this technical solution, the two clamping blocks are pushed together by the first spring.

[0009] In the above technical solution, the inner wall of the bracket is hinged to a support frame, and the inner wall of the support frame is fixedly connected to a tie rod.

[0010] In this technical solution, a lever is used to provide leverage support for passengers behind.

[0011] In the above technical solution, the positioning mechanism further includes a slide rail, which is fixedly installed on the back of the back body. A slider is slidably connected to the inner wall of the slide rail, and the inner wall of the slider is hinged to the end of the support arm away from the tray.

[0012] In this technical solution, the slider has space to move through the slide rail.

[0013] In the above technical solution, further, a through groove is provided on the inner side of the slider, a support seat is fixedly connected to the outer surface of the slider, a claw is hinged to the inner wall of the support seat, and the claw is located inside the through groove. A second spring is fixedly connected to one side of the claw inside the through groove, and the other end of the second spring is fixedly connected to the inner wall of the through groove.

[0014] In this technical solution, the jaws provide resistance to the slider, thus limiting the movement of the jaw block.

[0015] In the above technical solution, furthermore, the inner wall of the slide is fixedly connected with multiple locking blocks, and the multiple locking blocks are arranged in an equidistant array, with the claw contacting one of the locking blocks.

[0016] In this technical solution, multiple locking blocks are used to provide resistance to the locking claws, enabling the locking claws to provide support for the pallet at multiple angles.

[0017] In the above technical solution, further, each group of ear sockets has three ear sockets, and the three ear sockets are arranged in an equidistant array. Each group of first springs has two first springs, and the two first springs are symmetrical.

[0018] In this technical solution, the lugs provide support for the slide rod, and the first spring provides elastic pushing force for the clamping block.

[0019] The beneficial effects of this utility model are: 1. The backrest of this multi-functional bus seat, through the cooperation of the ear seat, slide rod, clamping block and the first spring, provides support force to the clamping block through the ear seat and slide rod to maintain the stability of the clamping block, and provides elastic pushing force to the clamping block through the first spring to push the two clamping blocks together. When the two clamping blocks are together, they have the force to clamp the paper cup or plastic cup, tightly wrapping the paper cup or plastic cup inside the slot, thereby improving the stability of the paper cup or plastic cup.

[0020] 2. The backrest of this multi-functional bus seat, through the cooperation of the bracket, support frame and pull rod, creates a distance between the pull rod and the bracket through the support frame, preventing contact with the passenger in front when grabbing the pull rod. When the elderly or people with mobility difficulties get up, they can use the pull rod for leverage, making it easier for them to get up and improving the convenience for the elderly or people with mobility difficulties to get up. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the tray structure in this utility model; Figure 3 This is a schematic diagram of the tray structure from below in this utility model; Figure 4 This is a schematic diagram of the slide structure in this utility model; Figure 5 This is a cross-sectional schematic diagram of the internal structure of the slide and slider in this utility model; Figure 6 This is a schematic diagram of the slider structure in this utility model.

[0022] The markings in the diagram are as follows: 1. Bracket; 2. Backrest body; 3. Tray; 4. Support; 5. Support arm; 6. Positioning mechanism; 601. Slide rail; 602. Slider; 603. Through groove; 604. Support base; 605. Claw; 606. Claw block; 607. Second spring; 7. Through hole; 8. Ear seat; 9. Slide rod; 10. Clamping block; 11. Slot; 12. First spring; 13. Swing arm; 14. Pull ring; 15. Support frame; 16. Pull rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Example 1: This example provides a multi-functional bus seat backrest, including: a bracket 1, a backrest body 2, and a tray 3. The backrest body 2 is fixedly installed inside the bracket 1. A support 4 is fixedly installed on the back of the backrest body 2. The tray 3 is hinged to the inner wall of the support 4. A support arm 5 is hinged to the bottom of the tray 3. A positioning mechanism 6 is provided below the support arm 5. The support 4 provides support for the tray 3, enabling the tray 3 to have a flipping function. When not in use, the tray 3 can be flipped downwards to prevent obstruction of passengers getting on and off the bus.

[0026] The inner side of the tray 3 has a through hole 7. Two sets of ear seats 8 are fixedly connected to the upper surface of the tray 3, and the two sets of ear seats 8 are symmetrical. The inner wall of the ear seat 8 is fixedly connected to a slide rod 9. The outer surface of the slide rod 9 is slidably connected to two clamping blocks 10, and the two clamping blocks 10 are symmetrical. The clamping blocks 10 are located above the through hole 7. The inner wall of each clamping block 10 has a slot 11. The outer side of the slide rod 9 is sleeved with two sets of first springs 12, and the two sets of first springs 12 are symmetrical. The outer surface of the ear seat 8 is hinged to a swing arm 13. One end of the swing arm 13 is hinged to one side of one of the clamping blocks 606, and the other end of the swing arm 13 is hinged to one side of the other clamping block 606. The outer surface of each clamping block 10 is fixedly connected to a pull ring 14.

[0027] The through hole 7 is used to accommodate the bottom of the paper cup or plastic cup. The ear seat 8 and the slide rod 9 provide support for the clamp 10 to maintain the stability of the clamp 10. The swing arm 13 causes one clamp 10 to drive the other clamp 10 in a linkage when it moves. The pull ring 14 facilitates the movement of the clamp 10. After the clamp 10 moves, the slot 11 expands to accommodate paper cups or plastic cups with a larger diameter.

[0028] Example 2: This example provides a multi-functional bus seat backrest. In addition to the technical solutions of the above examples, it also has the following technical features: one end of each of the multiple sets of first springs 12 is fixedly connected to one side of the clamping block 10, and the other end of each of the multiple sets of first springs 12 is fixedly connected to one side of the ear seat 8.

[0029] The first spring 12 provides elastic support to the clamping block 606, pushing the two clamping blocks 10 to converge towards the middle.

[0030] Example 3: This example provides a multi-functional bus seat backrest. In addition to the technical solutions of the above examples, it also has the following technical features: the inner wall of the bracket 1 is hinged to the support frame 15, and the inner wall of the support frame 15 is fixedly connected to the pull rod 16.

[0031] The support frame 15 provides support for the pull rod 16, maintaining its stability. The support frame 15 also creates a distance between the pull rod 16 and the bracket 1. For elderly people or people with mobility issues who have difficulty getting up, the pull rod 16 provides leverage to help them get up. The distance between the support frame 15 and the bracket 1 also prevents the pull rod from touching passengers in front of it when grabbing it.

[0032] Example 4: This example provides a multi-functional bus seat backrest. In addition to the technical solutions of the above examples, it also has the following technical features: the positioning mechanism 6 includes a slide rail 601, which is fixedly installed on the back of the backrest body 2. A slider 602 is slidably connected to the inner wall of the slide rail 601. The inner wall of the slider 602 is hinged to the end of the support arm 5 away from the tray 3.

[0033] The positioning mechanism 6 maintains the stability of the support arm 5, and the slide rail 601 provides support and guidance for the slider 602, thus maintaining the stability of the slider 602.

[0034] Example 5: This example provides a multi-functional bus seat backrest. In addition to the technical solutions of the above examples, it also has the following technical features: a through groove 603 is provided on the inner side of the slider 602; a support seat 604 is fixedly connected to the outer surface of the slider 602; a claw 605 is hinged to the inner wall of the support seat 604; the claw 605 is located inside the through groove 603; a second spring 607 is fixedly connected to one side of the claw 605 inside the through groove 603; and the other end of the second spring 607 is fixedly connected to the inner wall of the through groove 603.

[0035] The through groove 603 provides a space for the chuck 605 to be accommodated, and at the same time allows the chuck 605 to have space to move. The chuck 605 provides resistance to the slider 602 to maintain the stability of the slider 602. The second spring 607 provides an elastic pushing force to the chuck 605, so that the second chuck 605 always keeps in contact with the chuck block 606 when there is no external interference.

[0036] Example 6: This example provides a multi-functional bus seat backrest. In addition to the technical solutions of the above examples, it also has the following technical features: multiple locking blocks 606 are fixedly connected to the inner wall of the slide 601, and the multiple locking blocks 606 are arranged in an equidistant array. The claw 605 is in contact with one of the locking blocks 606.

[0037] Specifically, the locking block 606 provides resistance to the chuck 605, limiting the movement of the chuck 605. The chuck 605 then transmits the resistance to the slider 602, maintaining the stability of the support arm 5.

[0038] Example 7: This example provides a multi-functional bus seat backrest, which, in addition to the technical solutions of the above examples, also has the following technical features: each group of ear seats 8 has three ear seats 8, and the three ear seats 8 are arranged at equal distances; each group of first springs 12 has two first springs 12, and the two first springs 12 are symmetrical.

[0039] Two lugs 8 provide support at both ends of the slide bar 9 to maintain its stability. The middle position of the slide bar 9 of one lug 8 is used to separate the two clamping blocks 10 and provide support for the swing arm 13. Two first springs 12 are located outside the two clamping blocks 10.

[0040] Working principle: First, after the passenger sits down, the pusher tray is moved upwards. Simultaneously, the support arm 5 moves the slider 602 to a horizontal position. Once the tray 3 reaches a horizontal position, the pawl 605 contacts the locking block 606, restricting the movement of the support arm 5 and maintaining the stability of the tray 3. When the tray 3 needs to be lowered, pressing the end of the pawl 605 away from the locking block 606 disengages the other end of the pawl, releasing the positioning restriction on the slider 602. This allows the slider 602 to move downwards along the slide rail 601, while the support arm 5 and the tray 3 move downwards simultaneously. The tray 3 is then placed back to its original perpendicular position to the back panel. After the tray 3 is in a horizontal position, a paper cup or plastic cup is placed inside the slot 11. The bottom of the paper cup or plastic cup passes through the through hole 7 and is located below the tray 3. If the paper cup or plastic cup has a large diameter, the pull ring 14 moves the locking block 606. While the locking block 606 moves, the first spring 12 is compressed. The compressed first spring 12 provides elastic pushing force to the clamping block 10, which tightly restricts the paper cup or plastic cup to the inner wall of the slot 11. After the clamping block 10 moves, the distance between the slots 11 increases, which can accommodate paper cups or plastic cups with a larger diameter.

[0041] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-functional bus seat backrest, comprising: The bracket (1), the back body (2) and the tray (3) are characterized in that the back body (2) is fixedly installed inside the bracket (1), a support (4) is fixedly installed on the back of the back body (2), the tray (3) is hinged to the inner wall of the support (4), a support arm (5) is hinged to the bottom of the tray (3), and a positioning mechanism (6) is provided below the support arm (5). The inner side of the tray (3) is provided with a through hole (7). Two sets of ear seats (8) are fixedly connected to the upper surface of the tray (3), and the two sets of ear seats (8) are symmetrical. The inner wall of the ear seat (8) is fixedly connected with a slide rod (9). The outer surface of the slide rod (9) is slidably connected with two clamping blocks (10), and the two clamping blocks (10) are symmetrical. The clamping blocks (10) are located above the through hole (7). The inner walls of the two clamping blocks (10) are provided with slots (11). The outer side of the slide rod (9) is sleeved with two sets of first springs (12), and the two sets of first springs (12) are symmetrical. The outer surface of the ear seat (8) is hinged with a swing arm (13). One end of the swing arm (13) is hinged to one side of one of the clamping blocks (606), and the other end of the swing arm (13) is hinged to one side of the other clamping block (606). The outer surfaces of the two clamping blocks (10) are fixedly connected with pull rings (14).

2. The multifunctional bus seat backrest according to claim 1, characterized in that, One end of each of the multiple sets of the first springs (12) is fixedly connected to one side of the clamp (10), and the other end of each of the multiple sets of the first springs (12) is fixedly connected to one side of the ear seat (8).

3. The multifunctional bus seat backrest according to claim 1, characterized in that, The inner wall of the bracket (1) is hinged to the support frame (15), and the inner wall of the support frame (15) is fixedly connected to the tie rod (16).

4. A multifunctional bus seat backrest according to claim 1, characterized in that, The positioning mechanism (6) includes a slide (601), which is fixedly installed on the back of the back body (2). A slider (602) is slidably connected to the inner wall of the slide (601). The inner wall of the slider (602) is hinged to the end of the support arm (5) away from the tray (3).

5. A multifunctional bus seat backrest according to claim 4, characterized in that, The slider (602) has a through groove (603) on its inner side. A support base (604) is fixedly connected to the outer surface of the slider (602). A claw (605) is hinged to the inner wall of the support base (604), and the claw (605) is located inside the through groove (603). A second spring (607) is fixedly connected to one side of the claw (605) inside the through groove (603). The other end of the second spring (607) is fixedly connected to the inner wall of the through groove (603).

6. A multifunctional bus seat backrest according to claim 5, characterized in that, The inner wall of the slide (601) is fixedly connected with a plurality of locking blocks (606), and the plurality of locking blocks (606) are arranged in an equidistant array, and the claw (605) is in contact with one of the locking blocks (606).

7. A multifunctional bus seat backrest according to claim 1, characterized in that, The number of ear seats (8) in each group is three, and the three ear seats (8) are arranged at equal distances. The number of first springs (12) in each group is two, and the two first springs (12) are symmetrical.

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