Child safety seat

Abstract

The present application relates to a kind of child safety seats, including safety seat body, safety belt and buffer structure.Safety belt includes fixed part and connecting part, fixed part is fixed on safety seat body, connecting part is connected to car seat.Buffer structure is arranged on safety belt or safety seat body to reduce the tension that safety belt bears.Safety belt is fixed on safety seat body by fixed part, and is connected to car seat by connecting part, so safety seat body can be fixed on car seat.At the same time, buffer structure is arranged on safety belt or safety seat body to reduce the tension that safety belt bears, so when car is subjected to greater impact force, buffer structure can offset a part of impact force, avoid safety belt and / or safety belt and car seat connection place to be deformed and / or broken, to ensure the effect of safety belt, so as to greatly improve the safety performance of child safety seat.

Description

Technical Field

[0001] This invention relates to the technical field of child safety seats, and in particular to a child safety seat. Background Technology

[0002] Existing child safety seats are secured to the car seat using seat belts, which can prevent displacement to some extent when the car is subjected to an impact. However, under significant impact, the seat belts may exert excessive tension on the child safety seat, causing deformation and / or breakage of the seat belt and / or the connection point between the seat belt and the car seat. This results in the seat belt losing its restraining function, creating a safety hazard. Summary of the Invention

[0003] Therefore, it is necessary to provide a child safety seat that can effectively maintain the seat belt's function even when the car is subjected to a large impact, thus providing high safety.

[0004] A child safety seat, comprising:

[0005] The car seat itself;

[0006] The safety belt includes a fixing part and a connecting part, wherein the fixing part is fixed to the safety seat body and the connecting part is connected to the car seat;

[0007] A buffer structure is provided on the seat belt or the car seat body to reduce the tensile force on the seat belt.

[0008] The aforementioned safety harness is secured to the child safety seat body via a fixing part and connected to the car seat via a connecting part, thus fixing the child safety seat body to the car seat. Simultaneously, a cushioning structure is incorporated into the safety harness or the child safety seat body to reduce the tensile force on the safety harness. Therefore, in the event of a significant impact on the vehicle, the cushioning structure can absorb a portion of the impact force, preventing deformation and / or breakage of the safety harness and / or the connection point between the safety harness and the car seat. This ensures the effectiveness of the safety harness and significantly improves the safety performance of the child safety seat.

[0009] In one embodiment, the cushioning structure includes an elastic block, with the seat belt and the car seat body both abutting against the elastic block.

[0010] In one embodiment, the child safety seat further includes a connecting piece disposed in the safety seat body, the elastic pressure block includes a first pressure block, the fixing part has a fixing ring, the fixing ring is sleeved on the connecting piece, and both the fixing ring and the connecting piece abut against the first pressure block.

[0011] In one embodiment, the elastic pressure block further includes a second pressure block, and the sleeve, the safety seat body, and the safety belt all abut against the second pressure block.

[0012] In one embodiment, the elastic block is made of rubber, silicone, polyvinyl chloride, polystyrene foam, foamed polypropylene, or a mixture of foamed polystyrene and polyethylene.

[0013] In one embodiment, the elastic pressure block includes a first buffer portion and a second buffer portion, the first buffer portion being sleeved outside the second buffer portion, and the seat belt and the car seat body both abutting against the first buffer portion.

[0014] In one embodiment, the elastic deformation capability of the second buffer is greater than that of the first buffer.

[0015] In one embodiment, the safety strap has a first connecting portion and a second connecting portion spaced apart, and the first connecting portion and the second connecting portion are connected and fixed to form the buffer structure.

[0016] In one embodiment, the first connecting portion and the second connecting portion are sewn together to form the buffer structure.

[0017] In one embodiment, there are multiple first connecting parts and multiple second connecting parts, and the multiple first connecting parts and multiple second connecting parts are connected and fixed in a one-to-one correspondence to form multiple buffer structures.

[0018] In one embodiment, the safety strap has a first connecting segment, a second connecting segment, and a third connecting segment spaced apart, the first connecting segment, the second connecting segment, and the third connecting segment being connected and fixed to form the buffer structure.

[0019] In one embodiment, the first connecting segment is stacked on one side of the second connecting segment, and the third connecting segment is stacked on the other side of the second connecting segment.

[0020] In one embodiment, the safety strap includes a fixing webbing and a connecting webbing, which are connected by a length adjusting member. The fixing portion is provided at the end of the fixing webbing away from the length adjusting member, and the connecting portion is provided at the end of the connecting webbing away from the length adjusting member. The length adjusting member is used to adjust the length of the portion of the connecting webbing located between the connecting portion and the length adjusting member.

[0021] In one embodiment, the buffer structure is disposed on the fixed webbing.

[0022] In one embodiment, the buffer structure is disposed on the connecting webbing and located between the connecting portion and the length adjusting member.

[0023] In one embodiment, the child safety seat further includes a fixing tube disposed on the safety seat body, the safety strap passing through the fixing tube to connect to the car seat, and the cushioning structure being a notch disposed on the fixing tube.

[0024] In one embodiment, the child safety seat further includes a fixing tube disposed on the safety seat body, the safety strap passing through the fixing tube to connect to the car seat, and the buffer structure being a first buffer block disposed on the fixing tube, the safety strap abutting against the first buffer block.

[0025] In one embodiment, the child safety seat further includes a fixing tube disposed on the safety seat body, the safety strap passing through the fixing tube to connect to the car seat, the fixing tube having a limiting ring, the safety strap having a limiting collar, the limiting collar being engaged with the limiting ring when the safety strap passes through the fixing tube, and the buffer structure being a second buffer block disposed on the limiting ring, the second buffer block having a through hole, the safety strap passing through the through hole when passing through the fixing tube.

[0026] In one embodiment, the safety seat body has a mounting cavity and a mounting hole communicating with the mounting cavity. A sleeve is provided in the mounting cavity. One end of the safety belt with the fixing part enters the mounting cavity through the mounting hole to be fixed to the sleeve. The buffer structure is a third buffer block provided around the mounting hole. The safety belt abuts against the third buffer block.

[0027] In one embodiment, the safety strap includes a fixing webbing and a connecting webbing, which are connected by a length adjusting member. The fixing webbing has a fixing portion at one end away from the length adjusting member, and the connecting webbing has a connecting portion at one end away from the length adjusting member. The length adjusting member is used to adjust the length of the portion of the connecting webbing located between the connecting portion and the length adjusting member. The width of the fixing webbing is smaller than the width of the connecting webbing, and the fixing webbing forms the buffer structure.

[0028] In one embodiment, the width of the fixing webbing is 15mm to 30mm. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a child safety seat according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the fixing tube in a child safety seat is shown.

[0031] Figure 3 for Figure 2 Side view;

[0032] Figure 4 This is a structural schematic diagram of a child safety seat according to an embodiment of the present invention from another perspective;

[0033] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0034] Figure 6 for Figure 1 A partial sectional view;

[0035] Figure 7 for Figure 6 Enlarged view of point A;

[0036] Figure 8 for Figure 6 Another enlarged view of point A;

[0037] Figure 9 This is a schematic diagram of the structure of a seatbelt according to an embodiment of the present invention;

[0038] Figure 10 for Figure 9 Enlarged view of point B;

[0039] Figure 11 This is a schematic diagram of the structure of a seatbelt according to another embodiment of the present invention;

[0040] Figure 12 for Figure 11 Enlarged view of point C;

[0041] Figure 13 This is a schematic diagram of the structure of a seatbelt according to another embodiment of the present invention;

[0042] Figure 14 for Figure 13 A partial view, in which the first connecting structure is located on the fixed webbing;

[0043] Figure 15 for Figure 13 Another partial view, in which the first connecting structure is located on the connecting webbing;

[0044] Figure 16 This is a structural diagram of the first connection structure;

[0045] Figure 17 This is a schematic diagram of the second connection structure;

[0046] Figure 18 This is a schematic diagram of the structure of the safety strap in a further embodiment of the present invention.

[0047] Explanation of reference numerals in the attached figures

[0048] 100. Car seat body; 110. Seat back; 111. Mounting cavity; 120. Base; 200. Connecting piece; 300. Safety harness; 310. Connecting webbing; 311. Usage section; 311a. First section; 311b. Second section; 312. Adjustment section; 320. Fixing webbing; 321. Fitting ring; 322. Limiting ring; 330. Length adjustment piece; 331. Fitting part; 332. Adjusting part; 333. Adjustment knob; 340. Fixing part; 350. Connecting part; 360. Auxiliary webbing; 370. Auxiliary fixing part; 400. Fixing tube; 41 0. Horizontal tube; 420. First side tube; 430. Second side tube; 500. Limiting ring; 610. Elastic pressure block; 611. First pressure block; 611a. First buffer part; 611b. Second buffer part; 612. Second pressure block; 612a. First surface; 612b. Second surface; 612c. Third surface; 620. First connecting structure; 621. First connecting part; 622. Second connecting part; 630. Second connecting structure; 631. First connecting segment; 632. Second connecting segment; 633. Third connecting segment; 640. Notch; 700. First buffer pressure block. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of the invention.

[0050] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0052] like Figure 1 , Figure 4 , Figure 7 and Figure 9 As shown in the figure, one embodiment of the present invention provides a child safety seat, which includes a safety seat body 100, a connecting piece 200, a safety harness 300, a fixing tube 400, a limiting ring 500, and a cushioning structure. This child safety seat can effectively maintain the function of the safety harness 300 even when the car is subjected to a large impact, thus exhibiting high safety.

[0053] Specifically, such as Figure 1 and Figure 4 As shown, the child safety seat body 100 includes a backrest 110 and a seat 120 that are connected to each other. Figure 6 and Figure 7 As shown, the chair back 110 has a mounting cavity 111 and a mounting hole and a communicating hole communicating with the mounting cavity 111. The communicating hole is located above the mounting hole. A socket 200 is disposed in the mounting cavity 111. In this embodiment, the socket 200 is a H-shaped iron piece. Of course, in other embodiments, the socket 200 can also be in other forms.

[0054] Specifically, such as Figures 9 to 12 As shown, the seat belt 300 includes a connecting webbing 310, a fixing webbing 320, and a length adjusting member 330. The connecting webbing 310 and the fixing webbing 320 are connected by the length adjusting member 330. The fixed webbing 320 has a fixing portion 340 at its end away from the length adjusting member 330, and the connecting webbing 310 has a connecting portion 350 at its end away from the length adjusting member 330. The length adjusting member 330 is used to adjust the length of the portion of the connecting webbing 310 located between the connecting portion 350 and the length adjusting member 330. The fixing portion 340 is fixed to the child seat body 100, and the connecting portion 350 is connected to the car seat. Thus, the connection between the child seat body 100 and the car seat can be achieved through the seat belt 300. In this embodiment, the fixing portion 340 is a fixing loop. Of course, in other embodiments, the fixing portion 340 can also be a D-ring, a hook, etc. In this embodiment, the connecting portion 350 is a hook. Of course, in other embodiments, the connecting portion 350 can also be a fixing loop, a D-ring, etc.

[0055] In this embodiment, as Figure 9 and Figure 10As shown, the end of the fixing webbing 320 away from the fixing part 340 is fixed to the length adjusting member 330. Specifically, the length adjusting member 330 may be provided with a sleeve part 331, and the end of the fixing webbing 320 away from the fixing part 340 may be provided with a sleeve ring 321, which is sleeved and fixed to the sleeve part 331. The connecting webbing 310 is adjustablely provided on the length adjusting member 330. Specifically, the length adjusting member 330 may be provided with an adjusting part 332 and an adjusting knob 333, and the connecting webbing 310 passes through the adjusting part 332. Thus, with the adjusting part 332 as the boundary, the connecting webbing 310 can be divided into a use section 311 and an adjusting section 312. The use section 311 is the part of the connecting webbing 310 located between the adjusting part 332 and the connecting part 350, while the other part of the connecting webbing 310 is the adjusting section 312. When the adjusting knob 333 is in the locked state, the adjusting part 332 presses against the connecting webbing 310, fixing the length of the portion of the connecting webbing 310 located between the connecting part 350 and the length adjusting member 330. The adjusting knob 333 can be pressed to switch from the locked state to the unlocked state, releasing the pressure of the adjusting part 332 on the connecting webbing 310, allowing the length of the portion of the connecting webbing 310 located between the connecting part 350 and the length adjusting member 330 to be adjusted.

[0056] In another embodiment, such as Figure 11 and Figure 12 As shown, the safety strap 300 may also include an auxiliary webbing 360, which is arranged side-by-side with the fixing webbing 320. One end of the auxiliary webbing 360 has an auxiliary fixing part 370. In this embodiment, two sockets 200 are provided within the mounting cavity, and the fixing part 340 and the auxiliary fixing part 370 are respectively fixed to the two sockets 200. The other end of the auxiliary webbing 360 is connected to the connecting webbing 310. The other end of the connecting webbing 310 passes through the adjusting part 332. Therefore, in this embodiment, the connecting webbing 310 also includes a usage section 311 and an adjusting section 312. The portion of the connecting webbing 310 located between the auxiliary webbing 360 and the length adjusting member 330 is the usage section 311, and the other portion of the connecting webbing 310 is the adjusting section 312. With the connecting part 350 as the boundary, the usage section 311 can be further divided into a first section 311a connected to the length adjusting member 330 and a second section 311b connected to the auxiliary webbing 360. Similarly to this embodiment, by pressing the adjustment knob 333, the relative position of the adjustment part 332 and the connecting webbing 310 can be adjusted, thereby adjusting the length of the portion of the connecting webbing 310 located between the length adjustment member 330 and the auxiliary webbing 360. The connecting part 350 is provided in the portion of the connecting webbing 310 located between the length adjustment member 330 and the auxiliary webbing 360. Therefore, by adjusting the length adjustment member 330, the distance between the fixing part 340 and the connecting part 350 can be adjusted, that is, the tightness of the connection between the safety seat body 100 and the car seat's seat strap 300 can be adjusted.

[0057] Furthermore, such as Figures 1 to 3 As shown, the fixing tube 400 is fixed to the top of the seat back 110. Specifically, the fixing tube 400 is a U-shaped tube, including a horizontal tube 410 and a first side tube 420 and a second side tube 430 connected to both ends of the horizontal tube 410. The first side tube 420 and the second side tube 430 are fixed to the top surface of the seat back 110. A limiting ring 500 is provided on the horizontal tube 410. One end of the seat belt 300, which has a connecting part 350, passes through the connecting hole into the mounting cavity 111 and is connected to the car seat via the limiting ring 500 and around the fixing tube 400. Figure 13 As shown, the fixed webbing 320 is provided with a limiting collar 322. When the safety strap 300 passes around the limiting collar 500, the limiting collar 322 is locked at the limiting collar 500, thereby limiting the safety strap 300 and preventing the fixed webbing 320 from moving left or right or slipping towards the seat 120.

[0058] In one embodiment, such as Figure 6 and Figure 7 As shown, the buffer structure is an elastic pressure block 610 disposed within the mounting cavity 111. In this embodiment, there are two elastic pressure blocks 610, namely a first pressure block 611 and a second pressure block 612. The fixing collar of the fixing part 340 is sleeved on the sleeve member 200. The first pressure block 611 is disposed between the fixing collar and the sleeve member 200, and both the fixing collar and the sleeve member 200 abut against the first pressure block 611. The second pressure block 612 is disposed between the sleeve member 200 and the safety seat body 100. The first pressure block 611, the sleeve member 200, the second pressure block 612, and a portion of the safety seat body 100 are arranged sequentially. The second pressure block 612 has a first surface 612a, a second surface 612b, and a third surface 612c. The first surface 612a and the second surface 612b are opposite to each other, and the third surface 612c is adjacent to both the first surface 612a and the second surface 612b. The connector 200 and the child seat body 100 abut against the first surface 612a and the second surface 612b, respectively, while the safety belt 300 abuts against the third surface 612c. Thus, when the car experiences a significant impact, the tension on the safety belt 300 is first applied to the first pressure block 611 and the second pressure block 612, rather than to the connector 200 or the child seat body 100. The first pressure block 611 and the second pressure block 612 can offset the tension on the safety belt 300 through elastic deformation, thereby preventing deformation or breakage of the safety belt 300 and / or the connection between the safety belt 300 and the car seat, thus greatly improving the safety performance of the child safety seat.

[0059] Optionally, both the first pressing block 611 and the second pressing block 612 can be made of one or more elastic materials such as rubber, silicone, polyvinyl chloride, polystyrene foam, foamed polypropylene, or a mixture of foamed polystyrene and polyethylene.

[0060] Furthermore, such as Figure 8 As shown, the first pressure block 611 may include a first buffer portion 611a and a second buffer portion 611b. The first buffer portion 611a is sleeved over the second buffer portion 611b, and the seat belt 300 and the child seat body 100 both abut against the first buffer portion 611a. The first buffer portion 611a and the second buffer portion 611b are made of different materials. For example, the elastic deformation capacity of the second buffer portion 611b may be greater than that of the first buffer portion 611a. For instance, the first buffer portion 611a may be made of foamed polypropylene, and the second buffer portion 611b may be made of rubber.

[0061] Thus, when the car experiences excessive impact and the first buffer 611a is crushed, the second buffer 611b provides further cushioning, thereby preventing deformation or breakage of the seat belt 300 and / or the connection between the seat belt 300 and the car seat, improving the safety factor of the child safety seat. Furthermore, in this embodiment, the first pressure block 611 is made of first buffer 611a and second buffer 611b made of different materials. There is a significant change in shear modulus and elastic modulus between the first buffer 611a and the second buffer 611b. Therefore, the tension borne by the seat belt 300 will compress the first pressure block 611, and a significant amount of energy dissipation will occur during the transmission between the first buffer 611a and the second buffer 611b. Therefore, compared to a first pressure block 611 made of a single material, it has a superior energy absorption effect. Of course, the second pressure block 612 can also be similarly formed by two buffer parts of different materials joined together. In addition, the number and position of the first pressure block 611 and the second pressure block 612 can be adjusted as needed, as long as they can simultaneously resist the safety belt 300 and the safety seat body 100 to play a role in buffering and absorbing energy.

[0062] In another embodiment, such as Figures 13 to 15As shown, the buffer structure is a first connecting structure 620 provided on the seat belt 300. The first connecting structure 620 includes a first connecting portion 621 and a second connecting portion 622 spaced apart and located between the fixing portion 340 and the connecting portion 350. The first connecting portion 621 and the second connecting portion 622 are connected and fixed to form the buffer structure. In this embodiment, the first connecting portion 621 and the second connecting portion 622 are fixedly connected by sewing. Of course, in other embodiments, the first connecting portion 621 and the second connecting portion 622 can also be fixedly connected by other methods such as adhesive. When the car is subjected to a large impact force, causing the seat belt 300 to be tightened, the connection between the first connecting portion 621 and the second connecting portion 622 will break first, thereby playing a role in force relief and buffering. This can, to a certain extent, prevent the seat belt 300 and / or the connection between the seat belt 300 and the car seat from deforming or breaking, thus preventing the seat belt 300 from losing its effectiveness, thereby ensuring the safety and durability of the child safety seat. The above-mentioned buffer structure requires no additional components, is simple in structure, low in cost, and easy to implement.

[0063] Of course, such as Figure 17 As shown, the buffer structure can also be a second connecting structure 630 disposed on the seat belt 300. The second connecting structure 630 may include a first connecting segment 631, a second connecting segment 632, and a third connecting segment 633 sequentially disposed on the seat belt 300, and the first connecting segment 631, the second connecting segment 632, and the third connecting segment 633 are connected and fixed to form the second connecting structure 630. Specifically, the second connecting segment 632 overlaps with the first connecting segment 631, the third connecting segment 633 overlaps with the second connecting segment 632, and the first connecting segment 631 and the third connecting segment 633 are respectively located on two sides of the second connecting segment 632. The first connecting segment 631, the second connecting segment 632, and the third connecting segment 633 are fixedly connected to form a second connecting structure 630 in a "Z" shape. Optionally, the first connecting segment 631, the second connecting segment 632, and the third connecting segment 633 can be connected by sewing or by adhesive. Since the second connecting structure 630 is formed by connecting and fixing three connecting segments, when the vehicle experiences a large impact force that tightens the seatbelt 300, the extension length of the second connecting structure 630 when it breaks is longer than that of the first connecting structure 620, thus providing better force-dissipating and buffering effects. Of course, in other embodiments, the second connecting structure 630 can also be formed by connecting more than three connecting segments as needed.

[0064] Specifically, the buffer structure in this embodiment can be disposed on the fixed webbing 320, such as... Figure 13 As shown, it can also be set on the connecting webbing 310, such as Figure 15 As shown, it can also be set on the auxiliary webbing 360, such as Figure 11As shown (the first connecting structure 620 or the second connecting structure 630 can be installed at point D or E in the figure). It should be noted that since the length of the connecting webbing 310 is adjustable, the first connecting structure 620 or the second connecting structure 630 needs to be located between the connecting portion 350 and the length adjusting member 330 of the connecting webbing 310 to provide a buffering effect. For example, the first connecting structure 620 or the second connecting structure 630 can be positioned within approximately 15 cm of the connecting portion 350 to ensure that the first connecting structure 620 or the second connecting structure 630 is always located at the part of the connecting webbing 310 that is in use.

[0065] Furthermore, such as Figure 14 As shown, multiple first connecting parts 621 and multiple second connecting parts 622 can be provided on the safety belt 300, and the multiple first connecting parts 621 and multiple second connecting parts 622 are connected and fixed one-to-one to form multiple buffer structures. Similarly, multiple second connecting structures 630 can also be provided. In this way, multi-level buffering can be formed, improving the force-relieving and buffering capacity of the safety belt 300, which can effectively prevent deformation or breakage of the safety belt 300 and / or the connection between the safety belt 300 and the car seat, thereby greatly improving the safety performance of the child safety seat.

[0066] Furthermore, the seatbelt 300 can be equipped with different numbers or types of connection structures as needed. For example, such as Figure 11 As shown, in the safety strap 300 including the auxiliary webbing 360, a first connecting structure 620 can be provided at both point D of the fixed webbing 320 and point E of the auxiliary webbing 360; a second connecting structure 630 can also be provided at both point D of the fixed webbing 320 and point E of the auxiliary webbing 360; or, the first connecting structure 620 is provided at point D of the fixed webbing 320 and the second connecting structure 630 is provided at point E of the auxiliary webbing 360; or, the second connecting structure 630 is provided at point D of the fixed webbing 320 and the first connecting structure 620 is provided at point E of the auxiliary webbing 360.

[0067] In yet another embodiment, such as Figure 2 and Figure 3As shown, the buffer structure can also be a notch 640 on the fixed tube 400. In this way, when the car is subjected to a large impact force, the tension borne by the seat belt 300 passing through the fixed tube 400 will be transferred to the fixed tube 400. At this time, the fixed tube 400 with the notch 640 can deform to a certain extent, thereby achieving a certain force dissipation and energy absorption effect. This prevents the seat belt 300 from deforming under the tension force, preventing the seat belt 300 from losing its restraining function on the child safety seat body 100, and ensuring the effectiveness of the seat belt 300. Specifically, the notch 640 can be provided on the first side tube 420 or the second side tube 430 to prevent hand cuts. Of course, multiple notches 640 can be provided and spaced apart, but to ensure strength, not too many notches 640 need to be provided, depending on the specific situation.

[0068] In another embodiment, the buffer structure may also be a buffer block disposed at the fixing tube 400, the limiting ring 500, or the mounting hole through which the safety strap 300 passes. For example, as Figure 5 As shown, the buffer structure can be a first buffer block 700 mounted on the fixed pipe 400, with the safety strap 300 abutting against the first buffer block 700. Alternatively, the buffer structure can be a second buffer block mounted on the limiting ring 500, with a through hole on the second buffer block, through which the safety strap 300 passes when it wraps around the fixed pipe 400. Another buffer structure can be a third buffer block located around the mounting hole, with the safety strap 300 abutting against the third buffer block. Thus, when the car experiences a significant impact, the portion of the seatbelt 300 first abuts against the first, second, or third buffer block, providing a certain degree of cushioning and energy absorption. This prevents the tension on the seatbelt 300 from directly acting on the fixing tube 400, the limiting ring 500, and the child seat body 100, thereby preventing the seatbelt 300 from losing its restraining function on the child seat body 100 due to the portability of the fixing tube 400, the limiting ring 500, and the child seat body 100, thus improving the safety performance of the child safety seat. In this embodiment, the first, second, and third buffer blocks are all made of polystyrene foam. Of course, in other embodiments, the first, second, and third buffer blocks can also be made of rubber, silicone, polyvinyl chloride, foamed polypropylene, or a mixture of foamed polystyrene and polyethylene, etc.

[0069] In a further embodiment, such as Figure 18As shown, the width of the fixing webbing 320 can also be set to be smaller than the width of the connecting webbing 310, so that the fixing webbing 320 forms a buffer structure. By reducing the width of the fixing webbing 320, the elongation rate of the fixing webbing 320 can be increased, thereby achieving the function of buffering and absorbing energy. The width of the fixing webbing 320 can be, for example, 15mm to 30mm. In this embodiment, the width of the fixing webbing 320 is 25mm. Of course, it can also be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, etc.

[0070] The aforementioned child safety seats have at least the following technical benefits:

[0071] The aforementioned safety harness 300 is fixed to the child safety seat body 100 via the fixing part 340 and connected to the car seat via the connecting part 350, thus securing the child safety seat body 100 to the car seat. Simultaneously, a buffer structure is provided on the safety harness 300 or the child safety seat body 100 to enhance the energy absorption effect of the safety harness 300, that is, to reduce the tensile force borne by the safety harness 300 and / or the connection point between the safety harness 300 and the car seat. Therefore, when the car is subjected to a large impact, the buffer structure can offset part of the impact force, preventing deformation or breakage of the safety harness 300 and / or the connection point between the safety harness 300 and the car seat, thereby ensuring the effectiveness of the safety harness 300 and improving the safety performance of the child safety seat.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A child safety seat, characterized in that, include: The car seat itself; The safety belt includes a fixing part and a connecting part, wherein the fixing part is fixed to the safety seat body and the connecting part is connected to the car seat; A buffer structure is provided on the seat belt or the car seat body to reduce the tension on the seat belt. The buffer structure includes an elastic pressure block, and both the seat belt and the car seat body abut against the elastic pressure block. as well as A connecting piece, wherein the connecting piece is disposed in the safety seat body, and the elastic pressure block includes a first pressure block; The fixing part has a fixing collar, which is sleeved on the connecting piece, and both the fixing collar and the connecting piece abut against the first pressure block; The first pressure block is located between the safety seat body and the sleeve, or the first pressure block is located between the fixing collar and the sleeve.

2. The child safety seat according to claim 1, characterized in that, The elastic pressure block also includes a second pressure block, and the sleeve, the safety seat body and the safety belt all abut against the second pressure block.

3. The child safety seat according to claim 1, characterized in that, The elastic pressure block includes a first buffer part and a second buffer part, with the first buffer part sleeved outside the second buffer part, and the safety belt and the safety seat body both abutting against the first buffer part.

4. The child safety seat according to claim 3, characterized in that, The elastic deformation capacity of the second buffer part is greater than that of the first buffer part.

5. The child safety seat according to any one of claims 1 to 4, characterized in that, The elastic pressure block is made of rubber, silicone, polyvinyl chloride, polystyrene foam, foamed polypropylene, or a mixture of foamed polystyrene and polyethylene.

6. The child safety seat according to claim 1, characterized in that, The safety harness has a first connecting portion and a second connecting portion spaced apart, and the first connecting portion and the second connecting portion are connected and fixed to form the buffer structure.

7. The child safety seat according to claim 6, characterized in that, The first connecting part and the second connecting part are sewn together to form the buffer structure.

8. The child safety seat according to claim 7, characterized in that, There are multiple first connecting parts and multiple second connecting parts, and the multiple first connecting parts and multiple second connecting parts are connected and fixed in a one-to-one correspondence to form multiple buffer structures.

9. The child safety seat according to claim 1, characterized in that, The safety harness has a first connecting segment, a second connecting segment, and a third connecting segment spaced apart, and the first connecting segment, the second connecting segment, and the third connecting segment are connected and fixed to form the buffer structure.

10. The child safety seat according to claim 9, characterized in that, The first connecting segment is stacked on one side of the second connecting segment, and the third connecting segment is stacked on the other side of the second connecting segment.

11. The child safety seat according to claim 6 or 9, characterized in that, The safety strap includes a fixed webbing and a connecting webbing, which are connected by a length adjusting member. The fixed webbing has a fixing part at one end away from the length adjusting member, and the connecting webbing has a connecting part at one end away from the length adjusting member. The length adjusting member is used to adjust the length of the portion of the connecting webbing located between the connecting part and the length adjusting member.

12. The child safety seat according to claim 11, characterized in that, The buffer structure is located on the fixed webbing.

13. The child safety seat according to claim 11, characterized in that, The buffer structure is disposed on the connecting webbing and located between the connecting part and the length adjusting member.

14. A child safety seat, characterized in that, include: The car seat itself; The safety belt includes a fixing part and a connecting part, wherein the fixing part is fixed to the safety seat body and the connecting part is connected to the car seat; A buffer structure is provided on the body of the child safety seat to reduce the tensile force on the seat belt; as well as A fixing tube is provided on the body of the safety seat, and the safety strap is wrapped around the fixing tube to connect to the car seat; The buffer structure includes a notch on the fixing tube, which extends in the direction in which the safety strap applies tension to the fixing tube.

15. The child safety seat according to claim 14, characterized in that, The buffer structure also includes a first buffer block on the fixed tube, and the safety strap abuts against the first buffer block.

16. A child safety seat, characterized in that, include: The car seat itself; The safety belt includes a fixing part and a connecting part, wherein the fixing part is fixed to the safety seat body and the connecting part is connected to the car seat; A buffer structure is provided on the body of the child safety seat to reduce the tensile force on the seat belt; as well as A fixing tube is provided on the safety seat body. The safety strap is wrapped around the fixing tube to connect with the car seat. The fixing tube is provided with a limiting ring, and the safety strap is provided with a limiting collar. When the safety strap is wrapped around the fixing tube, the limiting collar is engaged with the limiting ring. The buffer structure is a second buffer block provided on the limiting ring. The second buffer block has a through hole. When the safety strap is wrapped around the fixing tube, it passes through the through hole.

17. The child safety seat according to claim 16, characterized in that, The safety seat body has a mounting cavity and a mounting hole communicating with the mounting cavity. A sleeve is provided in the mounting cavity. One end of the safety belt with the fixing part enters the mounting cavity through the mounting hole to be fixed to the sleeve. The buffer structure is a third buffer block provided around the mounting hole. The safety belt abuts against the third buffer block.

18. The child safety seat according to claim 16, characterized in that, The safety strap includes a fixed webbing and a connecting webbing, which are connected by a length adjusting member. The fixed webbing has a fixing part at one end away from the length adjusting member, and the connecting webbing has a connecting part at one end away from the length adjusting member. The length adjusting member is used to adjust the length of the portion of the connecting webbing located between the connecting part and the length adjusting member. The width of the fixed webbing is smaller than the width of the connecting webbing, and the fixed webbing forms the buffer structure.

19. The child safety seat according to claim 18, characterized in that, The width of the fixing webbing is 15mm to 30mm.

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