Threaded reversing bed chair
Through the screw-connected reversing bed chair design, the problems of difficult disassembly, less directional change and space limitations of the backrest of the car seat are solved, and the six-way transformation of the raised backrest and multi-directional adjustment of the seat are achieved, and the seat is improved aesthetics and convenience of use.
Patent Information
- Application Number
- CN202421130900.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing car seats have problems such as difficult to disassemble the backrest cushion, less directional change, unreasonable structure of the raised backrest, difficulty in shrinking the seat belt, and space occupied by the reset vortex spring, which leads to inconvenient replacement and adjustment and reduced aesthetics.
The screw-connected reversing bed chair design is adopted. The backrest frame is fixed to the support bottom frame by screw-connecting, which increases the six-way transformation ability of the backrest, improves the guide sleeve structure, hides the reset vortex spring in the backrest frame, and increases the horizontal direction. Adjust the slide rail and side pad support rod to achieve multi-directional adjustment and space expansion of the seat.
It realizes rapid disassembly and multi-directional transformation of the backrest seat cushion, reduces unlocking action, increases the shrinking space of the seat belt, improves the aesthetics and convenience of use, and expands the bed space.
Smart Images
Figure CN222202332U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seats, in particular to a screw-connected reversing bed chair. Background Art
[0002] The so-called car seat is the seat you sit in when you are in a car. According to the position, it can be roughly divided into: front seat and rear seat.
[0003] There are several shortcomings of current car seats: 1. The seat cushion and backrest of traditional bed chairs cannot be disassembled, and the seat cushion or backrest cannot be replaced when it is worn. This solves the problem that the back cushion is difficult to disassemble and replace.
[0004] 2. The existing technology has few or difficult directions to change, which solves the problem that the seat direction can be changed less or not, and the problem that the direction change is single when the seat is converted into a bed.
[0005] 3. The old seat mounting structure is welded to the outside of the frame, making the main backrest and the heightened backrest non-concentric, solving the problem of the heightened backrest center not coinciding with the backrest center.
[0006] 4. In the old plug-in structure of the heightened backrest and the main backrest, the guide sleeve needs to be manually unlocked when separating and assembling the heightened backrest so that it can be freely assembled and separated. This solves the problem of unnecessary unlocking action when disassembling and separating the heightened backrest and the problem of difficulty in replacing the heightened backrest.
[0007] 5. When the old heightened backrest seat belt is retracted and stretched, it is difficult to retract freely because the gap between the heightened backrest and the main backrest is too small. Now the problem of the safety belt not being able to retract smoothly is solved.
[0008] 6. The old car seat reset vortex spring is on the outside of the backrest frame, which increases the seat width and reduces the aesthetics. The impact of the vortex spring on the seat width is now solved and the overall aesthetics of the car seat is improved.
[0009] The old car seat can only be adjusted forward and backward, with a single direction, a small adjustment range, and no side shift system can be installed. The space is limited when the seat is converted into a bed. Now the adjustment range of the car seat has been increased, and a new side cushion support rod has been added when the seat is converted into a bed, which can increase the space when the seat is converted into a bed. Utility Model Content
[0010] The purpose of the utility model is to provide a screw-connected reversing bed chair to solve the following shortcomings of current car seats mentioned in the above background technology: 1. The seat cushion and backrest of traditional bed chairs cannot be disassembled, and the seat cushion or backrest cannot be replaced when worn. Solve the problem that the back cushion is difficult to disassemble and replace.
[0011] 2. The existing technology has few or difficult directions to change, which solves the problem that the seat direction can be changed less or not, and the problem that the direction change is single when the seat is converted into a bed.
[0012] 3. The old seat mounting structure is welded to the outside of the frame, making the main backrest and the heightened backrest non-concentric, solving the problem of the heightened backrest center not coinciding with the backrest center.
[0013] 4. In the old plug-in structure of the heightened backrest and the main backrest, the guide sleeve needs to be manually unlocked when separating and assembling the heightened backrest so that it can be freely assembled and separated. This solves the problem of unnecessary unlocking action when disassembling and separating the heightened backrest and the problem of difficulty in replacing the heightened backrest.
[0014] 5. When the old heightened backrest seat belt is retracted and stretched, it is difficult to retract freely because the gap between the heightened backrest and the main backrest is too small. Now the problem of the safety belt not being able to retract smoothly is solved.
[0015] 6. The old car seat reset vortex spring is on the outside of the backrest frame, which increases the seat width and reduces the aesthetics. The impact of the vortex spring on the seat width is now solved and the overall aesthetics of the car seat is improved.
[0016] The old car seat can only be adjusted forward and backward, with a single direction, a small adjustment range, and no side shift system can be installed. The space is limited when the seat is converted into a bed. Now the adjustment range of the car seat has been increased, and the side cushion support rod has been newly added when the seat is converted into a bed, which can increase the space of the seat when the seat is converted into a bed.
[0017] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0018] The screw-connected reversing bed chair comprises an installation bottom frame, one side of the installation bottom frame is horizontally provided with a side pedal rod, the top surface of the installation bottom frame is horizontally clamped with a supporting bottom frame, the top surface of the supporting bottom frame is horizontally bolted with a main base plate, the side of the supporting bottom frame is horizontally clamped with a main pedal rod, the two sides of the supporting bottom frame are symmetrically threaded and fixedly connected with side fixing blocks, the side edges of the side fixing blocks are horizontally clamped with flip rods, the two sides of the supporting bottom frame are symmetrically bolted and fixedly connected with stabilizing blocks, the sides of the stabilizing blocks are plugged with matching pull rods, the top surface of the main base plate is horizontally fixedly clamped with a sponge seat cushion, A backrest frame is vertically arranged on the top surface of the main base plate, an armrest is fixedly connected to one side of the backrest frame with bolts, a backrest sponge is fixedly clamped on one side of the backrest frame, a headrest rod is vertically inserted into the top surface of the backrest frame, a headrest body is arranged on the side of the headrest rod, outer guard plates are fixedly clamped on both sides of the supporting bottom frame, a bottom guard plate is horizontally fixedly clamped on the bottom surface of the main base plate, a back guard plate is fixedly clamped on one side of the backrest frame, a guide sleeve spray bead is inserted on the top surface of the backrest frame, a safety belt cap is symmetrically arranged on the top surface of the backrest frame, and a leg guard is clamped on the side of the supporting bottom frame. A support bracket, wherein the outer side edge of the leg support bracket is sleeved with a leg support sleeve.
[0019] As a preferred embodiment of the utility model: the mounting base frame is arranged by welding multiple rods to each other, and the mounting base frame is fixedly connected by bolts and arranged at a specified position on the floor of the vehicle, the side pedal is arranged in a U-shape, and the two ends of the side pedal are inserted between the inner side of the mounting base frame and the lock to maintain a mechanical connection.
[0020] As a preferred embodiment of the present invention: the supporting base frame and the installing base frame are arranged in parallel with each other in a superimposed manner, and the bottom surface clamping block of the supporting base frame is clamped in the top surface groove position of the installing base frame, the main base plate is horizontally arranged at the top position of the top surface moving rod of the supporting base frame, and the bottom surface of the main base plate is fixedly connected to the top surface of the top moving rod of the supporting base frame by bolts.
[0021] As a preferred embodiment of the utility model: the main pedal is horizontally arranged at the bottom position of the long side of the supporting bottom frame, and the two ends of the main pedal are connected to the internal locks of the supporting bottom frame by mechanical parts, there are two side fixing blocks, and the two side fixing blocks are parallel and symmetrically arranged at the two side corners of the supporting bottom frame, the side of the main base plate is connected by an axial rod and arranged on the side of the side fixing block near the top center position, and one end of the flip rod is mechanically connected to the side lock block of the main base plate.
[0022] As a preferred embodiment of the utility model: the stabilizing block is fixedly arranged at one end away from the side fixing block, and one end of the matching pull rod is extended and inserted into the side locking body of the backrest frame. The flip axis block structure at the two bottom ends of the side of the backrest frame is threadedly fixed and connected on the side of the stabilizing block. The sponge seat cushion and the backrest sponge are both made of sponge filling material.
[0023] As a preferred embodiment of the present utility model: the headrest body is socketed and arranged on the outer side of the headrest rod through the socket block at the bottom, the outer guard plate is buckled and arranged on the side positions of the side fixing block and the stabilizing block with a shell-like structure, the bottom guard plate and the back guard plate are both made of the same hard material, the guide sleeve is bead-sprayed and correspondingly inserted and arranged on the inner side of the opening of the backrest frame, the safety belt cap is fixedly arranged at the two corners of the top surface of the backrest frame, and the rod ends supporting the bottom frame and the backrest frame are both arranged to be open.
[0024] Compared with the prior art, the beneficial effects of the utility model are:
[0025] The utility model fixes the backrest frame to the supporting bottom frame by screwing, and the supporting bottom frame is screwed to the frame of the mounting bottom frame. Under the screwing structure between each other, it is faster and more efficient to disassemble and process each other. The backrest frame and the main base plate are both provided with a heightened backrest insertion rod hole structure. There are eight groups of holes in the backrest and eight groups of holes in the seat cushion, so that the heightened backrest can be used in six directions. The heightened back mounting structure is hidden in the frame, which solves the problem that the mounting structure causes the backrest connection to bulge outside the frame. The locking structure of the heightened back guide sleeve is changed to a bead-jet structure, which can effectively solve the redundant unlocking action, making the heightened backrest and the main backrest separated and combined more smoothly. In addition, a larger guide angle is added to the front end of the heightened backrest insertion rod, which makes it easier to combine the heightened backrest insertion rod with the main backrest. A cap is added to the safety belt opening, which makes the gap between the safety belt opening larger, the webbing does not rub against the seat surface cover, and the webbing can be freely retracted. The seat is shortened by shortening the longitudinal beam of the backrest frame to leave space for the installation of the return vortex spring. The return vortex spring is installed on the inner side of the backrest frame and can be hidden in the backrest frame without occupying the outer size of the frame, which reduces the overall width. A set of transverse adjustment slide rails are welded below the longitudinal adjustment slide rails of the seat, so that the seat can be adjusted transversely and longitudinally. When the seat is converted into a bed, the side pull rod is pulled upwards to adjust the seat transversely, and the side pad support rod can be inserted into the side. After adding the side pad, the bed space is increased. A leg support rod guide sleeve structure is reserved at the front end of the support bottom frame, and the leg support bracket installation structure is a plug-in type connection. The leg support has an adjustment range of 90-190 degrees and can be locked within the range of 90-180 degrees. When adjusted to 190 degrees, it is unlocked and automatically returns to 90 degrees. When the bed chair is converted into a bed, the leg support can be flattened to increase the bed space. The leg support of the old seat is difficult to disassemble. The current leg support and the seat are in a separate structure, which is simple to disassemble and has a reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the screw-connected reversing bed chair;
[0028] Figure 2 It is a structural schematic diagram of the connection details of the three-dimensional bed-changing bed-chair with screw connection;
[0029] Figure 3 It is a structural schematic diagram of the front view connection details of the screw-connected reversing bed-chair;
[0030] Figure 4 It is a structural schematic diagram of the connection details of the variable bed with screw-connected reversing bed-chair from top view;
[0031] Figure 5 It is a structural schematic diagram of the front view cross-section connection details of the variable bed of the screw-connected reversing bed-chair;
[0032] Figure 6It is a structural schematic diagram of the rear view connection details of the screw-connected reversing bed chair;
[0033] Figure 7 It is a structural schematic diagram of the connection details of the overall frame of the screw-connected reversing bed-chair;
[0034] Figure 8 It is a structural schematic diagram of the details of the bead-blasted three-dimensional connection of the guide sleeve of the screw-connected reversing bed chair;
[0035] Fig. 9 It is a structural schematic diagram of the details of the three-dimensional connection of the screw-connected reversing bed chair with a cap;
[0036] Fig.10 It is a structural schematic diagram showing the connection details of the screw-connected reversing bed-chair;
[0037] Fig.11 It is a structural schematic diagram showing the connection details of the screw-connected reversing bed-chair in the second direction;
[0038] Fig.12 It is a structural schematic diagram showing the three connection details of the screw-connected reversing bed-chair;
[0039] Fig.13 It is a structural schematic diagram showing the details of the four connections of the screw-connected reversing bed-chair;
[0040] Fig.14 It is a structural schematic diagram showing the five connection details of the screw-connected reversing bed-chair;
[0041] Fig.15 It is a structural schematic diagram showing six connection details of the screw-connected reversing bed-chair;
[0042] Fig.16 A structural diagram showing the connection details of the footrest of the screw-connected reversing bed chair;
[0043] Fig.17 A structural schematic diagram showing the connection details of the footrest of the screw-connected reversing bed chair;
[0044] Fig.18 This is a structural schematic diagram of the connection details of the footrest bracket of the screw-connected reversing bed chair.
[0045] In the figure: 1. Install the bottom frame; 2. Side pedal; 3. Support the bottom frame; 4. Main base plate; 5. Main pedal; 6. Side fixing block; 7. Flip rod; 8. Stabilizing block; 9. Matching pull rod; 10. Sponge seat cushion; 11. Backrest frame; 12. Armrest; 13. Backrest sponge; 14. Headrest rod; 15. Headrest body; 16. Outer guard plate; 17. Bottom guard plate; 18. Back guard plate; 19. Guide sleeve bead spraying; 20. Safety belt cap; 21. Leg support sleeve; 22. Leg support bracket. DETAILED DESCRIPTION
[0046] See also Figure 1-6 In the embodiment of the utility model, the screw-connected reversing bed chair comprises an installation base frame 1, a side edge of the installation base frame 1 is horizontally provided with a side pedal rod 2, the installation base frame 1 is welded by multiple rod bodies, and the installation base frame 1 is fixedly connected and arranged at a specified position on the floor of the vehicle by bolts, the side pedal rod 2 is arranged in a U-shaped shape, and the two ends of the side pedal rod 2 are inserted and arranged between the inner side of the installation base frame 1 and the lock buckle to maintain a mechanical connection, the top surface of the installation base frame 1 is horizontally clamped with a supporting base frame 3, the top surface of the supporting base frame 3 is horizontally bolted with a main base plate 4, the side edge of the supporting base frame 3 is horizontally clamped with a main pedal rod 5, and the two side edges of the supporting base frame 3 are symmetrically threaded and fixed with side fixing blocks 6, the supporting base frame 3 and the installation base frame 1 are arranged in a superimposed parallel arrangement with each other, and the bottom surface clamping block of the supporting base frame 3 is clamped and arranged at the top surface groove position of the installation base frame 1, the main base plate 4 is horizontally arranged at the top position of the moving rod on the top surface of the supporting base frame 3, and the main base plate 4 The bottom surface is fixedly connected to the top surface of the top moving rod of the supporting bottom frame 3 by bolts, the side of the side fixing block 6 is horizontally clamped with a flip rod 7, the main pedal rod 5 is horizontally set at the bottom position of the long side of the supporting bottom frame 3, and the two ends of the main pedal rod 5 are connected to the internal lock of the supporting bottom frame 3 by mechanical parts. There are two side fixing blocks 6, and the two side fixing blocks 6 are parallel and symmetrically arranged at the two side corners of the supporting bottom frame 3. The side of the main base plate 4 is connected by an axial rod and is set at the side of the side fixing block 6 near the top center position. One end of the flip rod 7 is mechanically connected to the side lock block of the main base plate 4. The two sides of the supporting bottom frame 3 are symmetrically bolted with stabilizing blocks 8. The side of the stabilizing block 8 is plugged with a matching pull rod 9. The top surface of the main base plate 4 is horizontally fixed with a sponge seat cushion 10. The integrated side panels are improved, and 4 side panels are used. Some through holes are punched in the side panels and the seat frame frame, and then bolts are used to connect them. The backrest cushion can be disassembled by removing the bolts;
[0047] See also Figure 1-6In the embodiment of the utility model, a screw-connected reversing bed chair is provided, wherein a backrest frame 11 is vertically arranged on the top surface of the main base plate 4, an armrest 12 is fixedly connected to one side of the backrest frame 11 with bolts, a backrest sponge 13 is fixedly connected to one side of the backrest frame 11, a stabilizing block 8 is fixedly arranged at one end away from the side fixing block 6, one end of the matching pull rod 9 is extended and inserted into the side locking body of the backrest frame 11, and the flip shaft block structure at the two bottom ends of the side of the backrest frame 11 is threadedly fixedly connected to the side of the stabilizing block 8, the sponge seat cushion 10 and the backrest sponge 13 are both made of sponge filling material, a headrest rod 14 is vertically inserted into the top surface of the backrest frame 11, and a headrest body 15 is arranged on the side of the headrest rod 14. , the two sides of the supporting bottom frame 3 are fixedly connected with outer guard plates 16, the bottom surface of the main base plate 4 is horizontally fixedly connected with a bottom guard plate 17, and one side of the backrest frame 11 is fixedly connected with a back guard plate 18. The headrest body 15 is sleeved and arranged on the outer side of the headrest rod 14 through the sleeve block at the bottom. The outer guard plate 16 adopts a shell-like structure and is buckled and arranged on the side positions of the side fixing block 6 and the stabilizing block 8. The bottom guard plate 17 and the back guard plate 18 are both made of the same hard material. The structure and distance of the seat cushion and the backrest frame are changed so that the distance between the centers of the openings of the two longitudinal beams in the middle of the backrest frame is equal to the distance between the two insertion rods of the heightened backrest. The four guide sleeves are knocked into the openings of the two longitudinal beams in the middle of the backrest frame, and then the two guide sleeves are knocked into the openings at both ends of the middle crossbeam of the backrest. Knock 4 guide sleeves into the openings of the two longitudinal beams in the middle of the seat cushion frame, and then knock 2 guide sleeves into the openings at both ends of the middle cross beam of the seat cushion frame. The top surface of the backrest frame 11 is plugged with a guide sleeve spray bead 19, and the top surface of the backrest frame 11 is symmetrically provided with a safety belt cap 20. The guide sleeve spray bead 19 is correspondingly plugged and arranged on the inner side of the opening of the backrest frame 11. The safety belt cap 20 is fixedly arranged at the two corners of the top surface of the backrest frame 11. The rod ends supporting the bottom frame 3 and the backrest frame 11 are provided with It is arranged in an open shape, and a leg support bracket 22 is clamped on the side of the supporting bottom frame 3, and a leg support sleeve 21 is sleeved on the outer side of the leg support bracket 22. A leg support rod guide sleeve structure is reserved at the front end of the supporting bottom frame 3, and the installation structure of the leg support bracket 22 is a plug-in rod connection. The leg support has an adjustment range of 90-190 degrees and can be locked within the range of 90-180 degrees. When it is adjusted to 190 degrees, it is unlocked and automatically returns to 90 degrees. When the bed chair is converted into a bed, the leg support can be flattened to increase the bed conversion space.
[0048] The working principle of the utility model is:
[0049] The backrest frame 11 is fixed to the supporting bottom frame 3 by screwing, and the supporting bottom frame 3 is screwed to the frame of the mounting bottom frame. The screwing structure between each other makes it faster and more efficient to disassemble and process each other. The backrest frame 11 and the main base plate 4 are both provided with a heightened backrest insertion rod hole structure. There are eight groups of holes in the backrest and eight groups of holes in the seat cushion, so that the heightened backrest can be used in six directions. The heightened back mounting structure is hidden in the frame, which solves the problem of the mounting structure outside the frame causing the backrest connection to bulge. The locking structure of the heightened back guide sleeve is changed to a bead-blasted structure, which can effectively solve the redundant unlocking action, making the heightened backrest and the main backrest separated and combined more smoothly. A larger guide angle is added to the front end of the heightened backrest insertion rod, making it easier to combine the heightened backrest insertion rod with the main backrest. A new cap is added to the seat belt opening, which makes the gap between the seat belt opening larger and the webbing does not touch the seat The friction of the surface cover allows the webbing to shrink freely, shortening the longitudinal beam of the backrest frame 11 and leaving space for the installation of the reset vortex spring. The reset vortex spring is installed on the inner side of the backrest frame 11 and can be hidden in the backrest frame 11 without occupying the outer size of the frame, thereby reducing the overall width. A set of transverse adjustment slide rails are welded below the longitudinal adjustment slide rails of the seat so that the seat can be adjusted transversely and longitudinally. When the seat is converted into a bed, the side pull rod is pulled upward to adjust the seat transversely, and the side pad support rod can be inserted into the side. After adding the side pad, the space for converting into a bed is increased. A leg support rod guide sleeve structure is reserved at the front end of the supporting bottom frame 3, and the leg support bracket 22 installation structure is a plug-in rod connection. The leg support has an adjustment range of 90-190 degrees and can be locked within the range of 90-180 degrees. When it is adjusted to 190 degrees, it is unlocked and automatically returns to 90 degrees. When the bed chair is converted into a bed, the leg support can be flattened to increase the space for converting into a bed.
[0050] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A screw-connected reversing bed-chair, comprising a mounting base frame (1), characterized in that: A side pedal rod (2) is horizontally arranged on one side of the installation base frame (1); a supporting base frame (3) is horizontally clamped on the top surface of the installation base frame (1); a main base plate (4) is horizontally bolted on the top surface of the supporting base frame (3); a main pedal rod (5) is horizontally clamped on the side of the supporting base frame (3); side fixing blocks (6) are symmetrically threadedly fixedly connected on both sides of the supporting base frame (3); a flip rod (7) is horizontally clamped on the side of the side fixing blocks (6); stabilizing blocks (8) are symmetrically boltedly fixedly connected on both sides of the supporting base frame (3); a matching pull rod (9) is inserted on the side of the stabilizing block (8); a sponge seat cushion (10) is horizontally fixedly clamped on the top surface of the main base plate (4); a backrest frame (11) is vertically arranged on the top surface of the main base plate (4); one side of the backrest frame (11) is The side bolts are fixedly connected with an armrest (12); a backrest sponge (13) is fixedly connected to one side of the backrest frame (11); a headrest rod (14) is vertically inserted into the top surface of the backrest frame (11); a headrest body (15) is arranged on the side of the headrest rod (14); outer guard plates (16) are fixedly connected to the two side edges of the support base frame (3); a bottom guard plate (17) is horizontally fixedly connected to the bottom surface of the main base plate (4); a back guard plate (18) is fixedly connected to one side of the backrest frame (11); a guide sleeve spray bead (19) is inserted into the top surface of the backrest frame (11); a safety belt cap (20) is symmetrically arranged on the top surface of the backrest frame (11); a leg support bracket (22) is clamped on the side of the support base frame (3); and a leg support sleeve (21) is sleeved on the outer side of the leg support bracket (22).
2. The screw-connected reversing bed chair according to claim 1, characterized in that: The mounting base frame (1) is provided by welding a plurality of rod bodies to each other, and the mounting base frame (1) is fixedly connected and arranged at a designated position on the floor of the vehicle by means of bolts, the side pedal rod (2) is provided in a U-shape, and the two ends of the side pedal rod (2) are inserted and arranged between the inner side of the mounting base frame (1) and the lock buckle to maintain a mechanical connection.
3. The screw-connected reversing bed chair according to claim 1, characterized in that: The supporting base frame (3) and the mounting base frame (1) are arranged in a superimposed parallel arrangement, and the bottom surface clamping block of the supporting base frame (3) is clamped and arranged at the top surface groove position of the mounting base frame (1), the main base plate (4) is horizontally arranged at the top position of the top surface moving rod of the supporting base frame (3), and the bottom surface of the main base plate (4) is fixedly connected to the top surface of the top moving rod of the supporting base frame (3) by bolts.
4. The screw-connected reversing bed chair according to claim 1, characterized in that: The main pedal rod (5) is horizontally arranged at the bottom position of the long side of the supporting bottom frame (3), and the two ends of the main pedal rod (5) are connected to the internal lock of the supporting bottom frame (3) through mechanical parts. There are two side fixing blocks (6), and the two side fixing blocks (6) are arranged parallel and symmetrically at the two side corners of the supporting bottom frame (3). The side of the main base plate (4) is connected to the side of the side fixing block (6) near the top center position through an axial rod, and one end of the flip rod (7) is mechanically connected to the side lock block of the main base plate (4).
5. The screw-connected reversing bed chair according to claim 1, characterized in that: The stabilizing block (8) is fixedly arranged at one end away from the side fixing block (6), and one end of the matching pull rod (9) is extended and inserted into the side locking body of the backrest frame (11). The flip shaft block structure at the two bottom ends of the side of the backrest frame (11) is threadedly fixedly connected to the side of the stabilizing block (8). The sponge seat cushion (10) and the backrest sponge (13) are both made of sponge filling material.
6. The screw-connected reversing bed chair according to claim 1, characterized in that: The headrest body (15) is sleeved and arranged on the outer side of the headrest rod (14) through the sleeve block at the bottom; the outer guard plate (16) is buckled and arranged on the side positions of the side fixing block (6) and the stabilizing block (8) using a shell-like structure; the bottom guard plate (17) and the back guard plate (18) are both made of the same hard material; the guide sleeve bead-spraying (19) is correspondingly inserted and arranged on the inner side of the opening of the backrest frame (11); the safety belt cap (20) is fixedly arranged at the two corners of the top surface of the backrest frame (11); and the rod ends supporting the bottom frame (3) and the backrest frame (11) are both arranged in an open shape.