CN220500648U - Automobile seat with three-point type safety belt structure - Google Patents

Abstract

The utility model relates to the technical field of automobile seats, and discloses an automobile seat with a three-point type safety belt structure, which comprises a seat framework, a retractor arranged on the seat framework, an upper fixing piece, a lower first fixing piece, a lower second fixing piece and a belt buckle, wherein the retractor is arranged on the seat framework; the retractor is positioned in the headrest part, and the upper fixing piece is provided with a through hole for the webbing of the retractor to pass through; the lower first fixing piece and the lower second fixing piece are positioned on two sides of the seat bag; the retractor is positioned at the left side or the right side of the upper fixing piece, an opening of the retractor is arranged towards the through hole, a webbing on the retractor passes through the through hole and then stretches out of the headrest part, and the tail end of the webbing is fixed on the lower second fixing piece or the lower first fixing piece; the buckle is positioned on the webbing outside the backrest and is movably arranged on the webbing.

Description

Automobile seat with three-point type safety belt structure

Technical Field

The utility model relates to the technical field of automobile seats, in particular to an automobile seat with a three-point type safety belt structure.

Background

The three-point type safety belt is mainly used for a common car, the passenger bus is generally a two-point type safety belt, compared with the two-point type safety belt, the three-point type safety belt has the main characteristics that the three-point type safety belt is used for fixing the body through three points arranged on a car body or a seat, the shoulder and the waist can be bound at the same time, the stability is good, when the passenger does not move forward at the moment of collision, the safety belt can be firstly tensioned, the passenger is tightly bound on the seat, the locking mechanism can also effectively prevent the body of the passenger from tilting forward, better restraint can be provided for the passenger in the car, the safety belt can better protect the safety of the passenger, and the two-point type safety belt is a safety belt with only two fixed points on the car body or the seat, can prevent the body of the passenger from moving forward or being thrown out of the car in a collision accident, and is convenient to use and easy to release, but has the disadvantages that the upper body of the passenger is easy to front, and the passenger sitting in front row is easy to collide on a front row or a windshield, so that secondary injury is caused.

Therefore, the three-point type safety belt is gradually applied to a passenger bus, the existing retractor of the three-point type safety belt is arranged in the seat through the mounting plate, the guide piece is further arranged in the seat, the webbing of the retractor passes through the guide piece positioned above the retractor and then stretches out of the seat, the webbing is fixed on a fixed point positioned on one side of the seat, the webbing is sleeved with the buckle, but the webbing is required to be pulled upwards and passes through the guide piece and then stretches out of the seat from the interior of the seat, so that the webbing positioned in the seat has a turning, on one hand, the problem of affecting the pulling or retracting smoothness of the webbing is solved, and on the other hand, the accident rate is increased because the webbing cannot be timely retracted due to the turning.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of Invention

In view of the above-described drawbacks of the prior art, an object of the present utility model is to provide an automobile seat with a three-point belt structure, which aims to directly pull out webbing from the interior of the seat to improve the problems of smoothness and safety.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automobile seat with a three-point type safety belt structure comprises a seat framework, a retractor arranged on the seat framework, an upper fixing piece, a lower first fixing piece, a lower second fixing piece and a belt buckle; the retractor is positioned in the headrest part, and the upper fixing piece is provided with a through hole for the webbing of the retractor to pass through; the lower first fixing piece and the lower second fixing piece are positioned on two sides of the seat bag; the retractor is positioned at the left side or the right side of the upper fixing piece, an opening of the retractor is arranged towards the through hole, a webbing on the retractor passes through the through hole and then stretches out of the headrest part, and the tail end of the webbing is fixed on the lower second fixing piece or the lower first fixing piece; the buckle is positioned on the webbing outside the backrest and is movably arranged on the webbing.

The automobile seat with the three-point type safety belt structure is characterized in that a first mounting plate is arranged on the seat framework, the end face of the first mounting plate is fixedly connected with the seat framework, a first mounting hole penetrating through the upper surface and the lower surface of the first mounting plate is further formed in the first mounting plate, a first mounting matching hole matched with the first mounting hole is formed in the retractor, and a first locking piece is arranged in the first mounting matching hole.

The automobile seat with the three-point type safety belt structure is characterized in that an arc-shaped groove is formed in the first mounting plate towards the end face of the seat framework, the radian of the arc-shaped groove is consistent with that of the seat framework, and the seat framework is located in the arc-shaped groove.

The automobile seat with the three-point type safety belt structure is characterized in that a second mounting plate is further arranged on the seat framework, the inner side face of the second mounting plate is fixedly connected with the seat framework, second mounting holes penetrating through the left side wall and the right side wall of the second mounting plate are formed in the second mounting plate, second mounting matching holes matched with the second mounting holes are formed in the upper fixing pieces, second locking pieces are arranged in the second mounting holes, and avoidance holes for the upper fixing pieces to penetrate are formed in the second mounting plate.

The automobile seat with the three-point type safety belt structure comprises an upper fixing piece, a lower fixing piece and a lower fixing piece, wherein the upper fixing piece comprises a first clamping plate and a second clamping plate which are arranged front and back, the first clamping plate is positioned in front of the second clamping plate, a gap is formed between the first clamping plate and the second clamping plate, and the gap is the through hole; the inner side surfaces of the upper end and the lower end of the first clamping plate are respectively provided with a first clamping groove, the outer side surfaces of the upper end and the lower end of the second clamping plate are respectively provided with a second clamping groove, the appearance of the first clamping grooves is consistent with that of the upper end/lower end of the second clamping plate, and the upper end/lower end of the second clamping plate is positioned in the corresponding first clamping groove; the shape of the second clamping groove is consistent with the shape of the upper end/lower end of the first clamping plate, and the upper end/lower end of the first clamping plate is positioned in the corresponding second clamping groove; the second mounting matching holes are respectively arranged in the first clamping groove and the second clamping groove.

The automobile seat with the three-point type safety belt structure is characterized in that the upper end and the lower end of the first clamping plate are respectively provided with an inwards concave groove, the upper end and the lower end of the second clamping plate are respectively provided with a bulge, and the bulge is located in the corresponding groove.

The automobile seat with the three-point type safety belt structure, wherein the through hole extends along the height direction of the first clamping plate or the second clamping plate.

The automobile seat with the three-point type safety belt structure comprises a seat framework and a seat bag framework, wherein the seat framework comprises a backrest framework and a seat bag framework which are integrally formed, a back plate is arranged at the rear of the backrest framework, leather or woven cloth is wrapped outside the backrest framework, sponge is filled inside the backrest framework, a headrest part and a backrest part are formed, a placing cavity is formed in the rear of the headrest part, a retractor is arranged in the placing cavity, and a cover plate is covered outside the placing cavity; the seat bag is characterized in that a seat plate is arranged on the upper surface of the seat bag framework, leather or woven cloth is wrapped outside the seat plate, sponge is filled in the seat plate, and a seat bag is formed.

The automobile seat with the three-point type safety belt structure is characterized in that a plurality of mounting pieces are arranged on the inner side face of the seat bag framework, the mounting pieces on the same horizontal direction are fixedly connected with the same section bar, and the lower surface of the section bar is fixedly connected with the upper surface of the seat leg.

The automobile seat with the three-point type safety belt structure is characterized in that one automobile seat is arranged, or two automobile seats are arranged side by side, and the two automobile seats are connected through the sectional materials.

The beneficial effects are that:

the utility model provides an automobile seat with a three-point type safety belt structure, which is characterized in that an opening of a retractor is arranged towards an upper fixing piece, the retractor is limited to be positioned at the left side/right side of the upper fixing piece, the horizontal pulling-out of a webbing in the retractor is realized, the smoothness of the webbing in pulling-out and retracting can be improved, and a turning position is only required to be formed on the upper fixing piece between two fixing ends of the webbing.

Drawings

Fig. 1 is a schematic structural view of a car seat (double seat) with a three-point type safety belt structure according to the present utility model.

Fig. 2 is a schematic structural view of a car seat (single seat) with a three-point seat belt structure.

Fig. 3 is a schematic view of the structure of the car seat after the headrest, the backrest and the seat bag are hidden.

Fig. 4 is a schematic diagram II of the car seat with the headrest portion, the backrest portion and the seat bag removed.

Fig. 5 is a schematic structural view of the second mounting plate and the upper fixture.

Description of main reference numerals: 1-seat frame, 11-first mounting plate, 111-first mounting hole, 112-arc slot, 12-second mounting plate, 121-avoiding hole, 13-second locking piece, 2-retractor, 21-first mounting fitting hole, 3-upper fixing piece, 31-second mounting fitting hole, 32-first clamping plate, 321-first clamping slot, 322-groove, 33-second clamping plate, 331-second clamping slot, 332-protrusion, 34-through hole, 4-lower first fixing piece, 5-lower second fixing piece, 6-webbing, 7-buckle;

10-headrest part, 101-cover plate, 102-placing cavity, 20-backrest part, 30-seat bag, 40-back plate, 50-seat plate, 60-mounting piece, 70-section bar and 80-chair leg.

Detailed Description

The utility model provides an automobile seat with a three-point type safety belt structure, which is further described in detail below with reference to the accompanying drawings and examples in order to make the purposes, the technical schemes and the effects of the utility model clearer and more definite. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides an automobile seat with a three-point seat belt structure, comprising a seat frame 1, a retractor 2 mounted on the seat frame 1, an upper fixing member 3, a lower first fixing member 4, a lower second fixing member 5 and a buckle 7; the retractor 2 is positioned in the headrest part 10, and the upper fixing piece 3 is provided with a through hole 34 for the webbing 6 of the retractor 2 to pass through; the lower first fixing member 4 and the lower second fixing member 5 are positioned at both sides of the seat bag 30; the retractor 2 is positioned at the left side or the right side of the upper fixing piece 3, the opening of the retractor 2 is arranged towards the through hole 34, the webbing 6 on the retractor 2 passes through the through hole 34 and then extends out of the headrest 10, and the tail end of the webbing 6 is fixed on the lower second fixing piece 5 or the lower first fixing piece 4; the buckle 7 is located on the webbing 6 outside the backrest, and is movably provided on the webbing 6.

One end of the webbing 6 is fixed on the retractor 2, the other end is pulled out of the retractor 2, passes through the upper fixing piece 3, is pulled out to be positioned outside the headrest portion 10 and is fixed on the lower first fixing piece 4 or the lower second fixing piece 5, the buckle 7 is positioned on the webbing 6 outside the headrest portion 10, the lower second fixing piece 5 or the lower first fixing piece 4 is provided with an eye-splice matched with the buckle 7, after the buckle 7 is held by hands in use, the webbing 6 is pulled out, the buckle 7 is inserted into the eye-splice, and three-point fixing of the shoulders and the waists of two sides of an occupant is realized. In this three-point type safety belt structure, set up the opening orientation of retractor 2 to upper mounting 3, and it is located the left side/right side of upper mounting 3 to inject retractor 2, realize the level of meshbelt 6 in the retractor 2 and pull out, smooth and easy degree when can improving meshbelt 6 and pull out and withdraw, only need form a turn position on upper mounting 3 between the two stiff ends of meshbelt 6 moreover, under the prerequisite that does not influence retractor 2 use, it is less than two turn positions of prior art, it is more convenient to use, meshbelt 6 is pull out or is all more smooth and easy when withdrawing, moreover can improve the security performance.

Referring to fig. 3, in some embodiments, a first mounting plate 11 is disposed on the seat frame 1, an end surface of the first mounting plate 11 is fixedly connected with the seat frame 1, a first mounting hole 111 penetrating through an upper surface and a lower surface of the first mounting plate 11 is further disposed on the first mounting plate 11, a first mounting hole 21 matched with the first mounting hole 111 is disposed on the retractor 2, and first locking members (not shown in the drawing) are disposed in the first mounting hole 111 and the first mounting hole 21. Specifically, the first mounting plate 11 and the seat frame 1 are connected in a welding mode, then the outsourcing retractor 2 is provided with the first mounting matching hole 21, and the retractor 2 can be fixed on the first mounting plate 11 through the first locking piece, so that the assembly is very convenient. Specifically, the first locking member can be matched with a bolt and a nut.

Referring to fig. 3, in some embodiments, an end surface of the first mounting plate 11 facing the seat frame 1 is provided with an arc groove 112, the arc of the arc groove 112 is consistent with the arc of the seat frame 1, and the seat frame 1 is located in the arc groove 112. The provision of the arc-shaped groove 112 serves to increase the contact area of the first mounting plate 11 and the seat frame 1 when the first mounting plate 11 is welded to the seat frame 1, thereby increasing the welding surface and improving the stability of the retractor 2. Specifically, a reinforcing plate is further disposed on the end face of the first mounting plate 11, and the reinforcing plate is used for welding with the seat frame 1.

Referring to fig. 4 and 5, in some embodiments, the seat frame 1 is further provided with a second mounting plate 12, an inner side surface of the second mounting plate 12 is fixedly connected with the seat frame 1, second mounting holes (covered by second locking members 13) penetrating through left and right side walls of the second mounting plate 12 are formed in the second mounting plate 12, second mounting matching holes 31 matched with the second mounting holes are formed in the upper fixing member 3, second locking members 13 are formed in the second mounting holes and the second mounting matching holes 31, and avoiding holes 121 for the upper fixing member 3 to pass through are formed in the second mounting plate 12. Likewise, the second mounting plate 12 is fixed to the seat frame 1 by welding. The second mounting plate 12 is located inside the headrest portion 10, the part of the upper fixing member 3 located outside the headrest portion 10 is tightly attached to the outer side surface of the headrest portion 10, the part of the upper fixing member 3 located inside the headrest portion 10 is located in the avoiding hole 121, and when the headrest is assembled, the second mounting fitting hole 31 is aligned with the second mounting hole on the second mounting plate 12, and the upper fixing member 3, the headrest portion 10 and the second mounting plate 12 can be fixed through the second locking member 13. Specifically, the second locking member 13 may be engaged with a bolt and a nut.

Referring to fig. 4 and 5, in some embodiments, the upper fixing member 3 includes a first clamping plate 32 and a second clamping plate 33 disposed in front of and behind each other, the first clamping plate 32 is located in front of the second clamping plate 33, and a gap is formed between the first clamping plate 32 and the second clamping plate 33, and the gap is the through hole 34; the inner sides of the upper end and the lower end of the first clamping plate 32 are respectively provided with a first clamping groove 321, the outer sides of the upper end and the lower end of the second clamping plate 33 are respectively provided with a second clamping groove 331, the appearance of the first clamping groove 321 is consistent with the appearance of the upper end/lower end of the second clamping plate 33, and the upper end/lower end of the second clamping plate 33 is positioned in the corresponding first clamping groove 321; the second clamping groove 331 has a shape corresponding to the shape of the upper/lower end of the first clamping plate 32, and the upper/lower end of the first clamping plate 32 is located in the corresponding second clamping groove 331; the second mounting mating holes 31 are respectively disposed in the first clamping groove 321 and the second clamping groove 331. During assembly, the first clamping plate 32 is aligned with the second clamping groove 331, the second clamping plate 33 is aligned with the first clamping groove 321, after the first clamping plate 32 and the second clamping plate 33 are clamped, the second mounting matching hole 31 is aligned with the second mounting hole, and the second locking piece 13 is inserted into the corresponding hole, so that the first clamping plate 32, the second clamping plate 33 and the second mounting plate 12 are fixed.

Referring to fig. 5, in some embodiments, the upper end and the lower end of the first clamping plate 32 are respectively provided with an inwardly concave groove 322, and the upper end and the lower end of the second clamping plate 33 are respectively provided with a protrusion 332, and the protrusions 332 are located in the corresponding grooves 322. Through the arrangement of the grooves 322 and the protrusions 332, the contact area of the first clamping plate 32 and the second clamping plate 33 is increased, so that the connection between the first clamping plate 32 and the second clamping plate 33 is firmer, and the first clamping plate 32 and the second clamping plate 33 are enabled to displace due to stress when the webbing 6 is prevented from being stretched under high force.

Referring to fig. 1, in some embodiments, the through hole 34 extends along a height direction of the first clamping plate 32 or the second clamping plate 33. In this embodiment, the length of the through hole 34 is about three times the width of the webbing 6, so that the webbing 6 can move up and down in the through hole 34, and the webbing 6 can cross the shoulders of the passengers according to the requirements of the passengers with different heights.

Referring to fig. 1-3, in some embodiments, the seat frame 1 includes an integrally formed backrest frame and a seat bag frame, a back plate 40 is disposed at the rear of the backrest frame, leather or fabric is wrapped around the outside of the backrest frame, a sponge is filled in the back plate, a headrest portion 10 and a backrest portion 20 are formed, a placement cavity 102 is formed at the rear of the headrest portion 10, the retractor 2 is disposed in the placement cavity 102, and a cover plate 101 is covered on the outside of the placement cavity 102; the seat bag is characterized in that a seat plate 50 is arranged on the upper surface of the seat bag framework, leather or woven cloth is wrapped outside the seat plate 50, sponge is filled inside the seat plate, and the seat bag 30 is formed. In the actual assembly process, the seat frame 1 is formed first, the retractor 2 and the upper fixing member 3 are fixed to the back frame, the seat plate 50 is mounted on the seat frame, the seat bag 30 is formed after the leather is covered and the sponge is filled, the headrest portion 10 and the back portion 20 are formed after the sponge is covered and the sponge is filled, and then the back plate 40 is mounted thereon. When the sponge is filled, the rear of the headrest portion 10 is left empty, and a placement cavity 102 is formed enough for the webbing 6 of the retractor 2 to stretch and retract.

Referring to fig. 1 and 2, in some embodiments, a plurality of mounting members 60 are disposed on an inner side surface of the seat frame, the mounting members 60 in the same horizontal direction are fixedly connected to the same profile 70, and a lower surface of the profile 70 is fixedly connected to an upper surface of a chair leg 80. The mounting member 60 may be secured to the seat cover frame by welding. Specifically, the seat cover frame extends horizontally in the front-rear direction, and the rear end of the seat cover frame and the lower end of the backrest frame are integrally formed by bending, so that the backrest frame is in a backward inclined state, and the formed backrest part 20 is inclined backward, thereby improving the comfort level of passengers leaning against the automobile seat.

Referring to fig. 1, in some embodiments, the car seats are arranged side by side in two, and the two car seats are connected by the profile 70. The number of car seats on a passenger bus is generally two from side to side, and the two car seats are connected by the profile 70. Referring to fig. 2, the car seat can be configured as a single seat. When the car seat is a single seat, the number of the legs 80 located below the seating plate 50 should be correspondingly two.

In summary, the opening of the retractor 2 is set towards the upper fixing member 3, and the retractor 2 is limited to be positioned at the left side/right side of the upper fixing member 3, so that the horizontal pulling out of the webbing 6 in the retractor 2 is realized, the smoothness of the webbing 6 during pulling out and retracting can be improved, and only one turning position is formed on the upper fixing member 3 between the two fixing ends of the webbing 6, on the premise that the use of the retractor 2 is not affected, one turning position is omitted compared with the two turning positions in the prior art, the use is more convenient, the webbing 6 is smoother during pulling out or retracting, and the safety performance can be improved. A first mounting plate 11 is provided to enable connection of the retractor 2 to the seat frame 1. An arc-shaped groove 112 is provided for enlarging the welding surface with the seat frame 1. A second mounting plate 12 is provided for fixing the upper fixture 3 to the seat frame 1. The first and second clamping plates 32 and 33, the groove 322 and the protrusion 332 are provided for achieving the stability of the upper fixture 3. The headrest portion 10, the backrest portion 20, and the seat bag 30 are formed by a skin and a filling sponge. A mounting 60 and a profile 70 are provided for connecting two car seats.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. An automobile seat with a three-point type safety belt structure comprises a seat framework, a retractor arranged on the seat framework, an upper fixing piece, a lower first fixing piece, a lower second fixing piece and a belt buckle; the retractor is positioned in the headrest part, and the upper fixing piece is provided with a through hole for the webbing of the retractor to pass through; the lower first fixing piece and the lower second fixing piece are positioned on two sides of the seat bag; the device is characterized in that the retractor is positioned at the left side or the right side of the upper fixing piece, an opening of the retractor is arranged towards the through hole, a braid on the retractor passes through the through hole and then stretches out of the headrest part, and the tail end of the braid is fixed on the lower second fixing piece or the lower first fixing piece; the buckle is positioned on the webbing outside the backrest and is movably arranged on the webbing.

2. The automobile seat with the three-point safety belt structure according to claim 1, wherein a first mounting plate is arranged on the seat framework, the end face of the first mounting plate is fixedly connected with the seat framework, a first mounting hole penetrating through the upper surface and the lower surface of the first mounting plate is further formed in the first mounting plate, a first mounting matching hole matched with the first mounting hole is formed in the retractor, and a first locking piece is arranged in the first mounting hole and the first mounting matching hole.

3. The car seat with three-point seat belt structure according to claim 2, wherein the end face of the first mounting plate facing the seat frame is provided with an arc-shaped groove, the arc of which is consistent with the arc of the seat frame, and the seat frame is located in the arc-shaped groove.

4. The automobile seat with the three-point safety belt structure according to claim 1, wherein a second mounting plate is further arranged on the seat framework, the inner side surface of the second mounting plate is fixedly connected with the seat framework, second mounting holes penetrating through the left side wall and the right side wall of the second mounting plate are formed in the second mounting plate, second mounting matching holes matched with the second mounting holes are formed in the upper fixing piece, second locking pieces are arranged in the second mounting holes and the second mounting matching holes, and avoidance holes for the upper fixing pieces to penetrate through are formed in the second mounting plate.

5. The car seat with a three-point seat belt structure according to claim 4, wherein the upper fixing member includes a first clamping plate and a second clamping plate disposed front and back, the first clamping plate being located in front of the second clamping plate, a gap being formed between the first clamping plate and the second clamping plate, the gap being the through hole; the inner side surfaces of the upper end and the lower end of the first clamping plate are respectively provided with a first clamping groove, the outer side surfaces of the upper end and the lower end of the second clamping plate are respectively provided with a second clamping groove, the appearance of the first clamping grooves is consistent with that of the upper end/lower end of the second clamping plate, and the upper end/lower end of the second clamping plate is positioned in the corresponding first clamping groove; the shape of the second clamping groove is consistent with the shape of the upper end/lower end of the first clamping plate, and the upper end/lower end of the first clamping plate is positioned in the corresponding second clamping groove; the second mounting matching holes are respectively arranged in the first clamping groove and the second clamping groove.

6. The car seat with three-point seat belt structure according to claim 5, wherein the upper and lower ends of the first clamping plate are respectively provided with an inwardly recessed groove, and the upper and lower ends of the second clamping plate are respectively provided with a protrusion, which is located in the corresponding groove.

7. The car seat with the three-point seat belt structure according to claim 5, wherein the through hole extends in a height direction of the first clamp plate or the second clamp plate.

8. The car seat with the three-point seat belt structure according to claim 1, wherein the seat frame comprises an integrally formed backrest frame and a seat bag frame, a back plate is arranged at the rear of the backrest frame, leather or woven cloth is wrapped outside the backrest frame, sponge is filled inside the backrest frame, a headrest part and a backrest part are formed, a placing cavity is formed at the rear of the headrest part, the retractor is arranged in the placing cavity, and a cover plate is covered outside the placing cavity; the seat bag is characterized in that a seat plate is arranged on the upper surface of the seat bag framework, leather or woven cloth is wrapped outside the seat plate, sponge is filled in the seat plate, and a seat bag is formed.

9. The car seat with the three-point seat belt structure according to claim 8, wherein a plurality of mounting pieces are arranged on the inner side surface of the seat bag framework, the mounting pieces in the same horizontal direction are fixedly connected with the same section bar, and the lower surface of the section bar is fixedly connected with the upper surface of the seat leg.

10. The car seat with three-point seat belt structure according to claim 9, characterized in that the car seat is provided as one or two car seats side by side, which are connected by means of the profile.