Method and apparatus for adjusting a laceration-preventing harness

Abstract

The present application relates to the technical field of automobile safety equipment, more specifically, to a kind of adjusting method and device of anti-wound safety belt, comprising the following steps: adjusting device is installed in the contact area of safety belt and user, and the part of safety belt is wound by the winding structure of adjusting device;When user wears safety belt, the anti-wound sleeve of adjusting device is in contact with the body of user;When the safety belt is tightened by the rapid braking, jolt or collision of vehicle, energy absorption and buffering are carried out by the winding structure of adjusting device, and the tightness of safety belt is automatically adjusted.When user wears safety belt, the anti-wound sleeve plays a preliminary buffering effect;When the rapid braking, jolt or collision of vehicle occurs, safety belt will be tightened, at this time, the winding structure of adjusting device starts to work, energy absorption and buffering are carried out by using its own structural characteristics, and the tightness of safety belt is automatically adjusted, to avoid safety belt being suddenly tightened too much, and reduce the probability of wound caused by safety belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile safety equipment, in particular to a method and device for preventing injury caused by a seat belt. BACKGROUND

[0002] With the improvement of people's living standards, more and more cars have entered every household, and users have higher and higher requirements for the comfort of cars. The automobile safety belt is a safety device equipped on every car, however, when the user wears the automobile safety belt, the automobile safety belt will always be in a tight state, so that the user's body is subjected to a sense of oppression at all times, which makes people feel uncomfortable. And the traditional safety belt fixed tension is easy to cause chest / shoulder injury to the passengers (especially children and pregnant women) in emergency braking or collision, and manual adjustment of the tightness of the safety belt cannot adapt to dynamic working conditions (such as bumping and collision) in real time, so many drivers or passengers will give up the use of the automobile safety belt to make the journey more comfortable, which will seriously endanger the safety of driving. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a method and device for preventing injury caused by a seat belt.

[0004] The technical solution adopted by the present application is:

[0005] A method for adjusting a safety belt to prevent injury, comprising the following steps:

[0006] installing an adjusting device in the contact area between the safety belt and the user, and winding part of the belt body of the safety belt through the winding structure of the adjusting device;

[0007] when the user wears the safety belt, the anti-tightening sleeve of the adjusting device is in contact with the user's body;

[0008] when the safety belt is tightened due to emergency braking, bumping or collision of the vehicle, the winding structure of the adjusting device absorbs energy and buffers, and automatically adjusts the tightness of the safety belt.

[0009] Further, when the user wears the safety belt, the flexible pressure sensor inside the anti-tightening sleeve is in contact with the user's body, and the flexible pressure sensor detects the pressure in the contact area between the safety belt and the human body in real time; when the pressure reaches a first preset pressure value, the winding structure unwinds part of the belt body of the safety belt, thereby reducing the pressure of the safety belt on the user.

[0010] Further, when the flexible pressure sensor detects that the pressure reaches a second preset pressure value, the winding structure rewinds part of the belt body of the safety belt, thereby preventing the safety belt from failing to protect the user when the amplitude of emergency braking, bumping or collision of the vehicle is large; the second preset pressure value is greater than the first preset pressure value.

[0011] Further, the flexible pressure sensor is a PVDF piezoelectric film sensor.

[0012] The adjusting device adjusts the tightness of the safety belt according to the adjusting method, and comprises a choke sleeve and a winding structure. After the choke sleeve is installed on the safety belt, a part of the safety belt is pulled out from the installation port of the choke sleeve away from the user side and is sleeved on the winding structure. Then, the winding structure is connected and fixed with the installation port of the choke sleeve, so that the energy absorption and buffering of the choke sleeve and the winding structure can be realized when the safety belt is tightened due to the sudden braking, bumping or collision of the vehicle.

[0013] Further, the adjusting device further comprises a flexible pressure sensor installed on the side of the choke sleeve in contact with the user's body, the flexible pressure sensor is electrically connected with the controller, and the controller is electrically connected with the winding structure.

[0014] Further, the controller adopts an STM32 series microcontroller.

[0015] Further, the winding structure comprises a winding roller assembly for passing the safety belt, the winding roller assembly is rotatably arranged on the tension frame, the tension frame is slidably arranged in the meandering sliding groove of the force receiving frame, the energy absorption spring is connected between the bottom surface of the meandering sliding groove and the tension frame, the force receiving frame is fixed in the middle of the mounting support, the four corners of the mounting support are connected on the rectangular frame of the installation port of the choke sleeve through bolts, and two threading ports for passing the safety belt are formed between the two ends of the mounting support and the rectangular frame.

[0016] Further, the winding roller assembly comprises a rotating seat one and a rotating seat two rotatably arranged at the two ends of the tension frame, a winding roller one is fixed between the rotating seat one and the rotating seat two, a winding roller two is slidably connected in the transverse through hole of the rotating seat two, one end of the winding roller two is screwed in the internal thread groove of the rotating seat one, and the other end of the winding roller two is provided with a rotating head; the winding roller one and the winding roller two form a clamping groove for passing the safety belt; and the outer end of the rotating seat one is connected with a retractable motor mounted on the tension frame.

[0017] Further, two limiting pressure blocks are fixed on the tension frame, and the two limiting pressure blocks slide relative to the limiting slide ways on both sides of the force frame, the outer side of the limiting pressure block is a slanting pressure surface which is inclined from outside to inside, both ends of the mounting support are provided with two guide grooves which are in one-to-one communication with two winding openings; a pressure exceeding slide plate is slidably connected in each guide groove, a tension spring is fixed between the pressure exceeding slide plate and the inner side of the guide groove, one end of the pressure exceeding slide plate close to the force frame is connected with a guide slide block which is slidably arranged on the outer side of the mounting support, one end of the pressure exceeding slide plate inserted into the winding opening is provided with a pressure guide roller for guiding and pressing the safety belt, a force block is fixed on each guide slide block, and a pressure receiving inclined surface is arranged on the side of each force block close to the force frame for cooperating with the slanting pressure surface, when the winding roller assembly drives the tension frame and the limiting pressure block to move to the mounting support by a preset distance, the slanting pressure surface contacts with the pressure receiving inclined surface, and the two force blocks are away from each other.

[0018] Further, the anti-wringing sleeve comprises a bonding sleeve body provided with a mounting opening, one end of the bonding sleeve body is provided with a Velcro sub-surface, and the other end is provided with a Velcro mother surface; one side of the bonding sleeve body in contact with the user is provided with two air bag assembly grooves, and the two air bag assembly grooves are connected with two flow guide pipes fixed on the rectangular frame of the mounting opening through air pipes arranged in the mounting opening of the bonding sleeve body, the two flow guide pipes are sealingly connected with two air ports of an air cylinder, the air cylinder is fixed in the rectangular center hole of the force frame; an air charging piston plate is sealingly slid in the air cylinder, the air charging piston plate is fixed on one end of two piston rods, the middle parts of the two piston rods are slidably arranged on two end plates of the open end of the air cylinder, one end of the two piston rods penetrating out of the air cylinder is fixed with a transmission pressure frame arranged opposite to the winding roller assembly, a return tension spring is fixed between the transmission pressure frame and the two end plates; when the winding roller assembly moves to the mounting support by a preset distance, the transmission pressure frame can be contacted, so as to control the air charging piston plate to deliver the gas in the air cylinder to the two air bag strips.

[0019] From the above scheme, the beneficial effects of the present application are:

[0020] When the user wears the safety belt, the anti-wringing sleeve plays a role of buffering and increasing the contact area, and plays a preliminary buffering and anti-wringing effect; when the vehicle suddenly brakes, bounces or collides, the safety belt will be tightened, at this time, the winding structure of the adjusting device starts to work, absorbs energy and buffers by using its own structural characteristics, and automatically adjusts the tightness of the safety belt, so as to avoid the safety belt from being suddenly and excessively tightened, and reduce the probability of causing the user to be injured by being strangled.

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are referred to for detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the application to the embodiments. In the drawings:

[0023] Figure 1 The flow chart of the adjusting method of the anti-strangulation safety belt provided by the embodiment of the application;

[0024] Figure 2 The first direction schematic view of the adjusting device provided by the embodiment of the application;

[0025] Figure 3 The second direction schematic view of the adjusting device provided by the embodiment of the application;

[0026] Figure 4 The sectional view of the adjusting device provided by the embodiment of the application;

[0027] Figure 5 The schematic view of the anti-strangulation sleeve provided by the embodiment of the application;

[0028] Figure 6 The partial enlarged schematic view of the anti-strangulation sleeve provided by the embodiment of the application;

[0029] Figure 7 The first direction schematic view of the winding structure provided by the embodiment of the application;

[0030] Figure 8 The second direction schematic view of the winding structure provided by the embodiment of the application;

[0031] Figure 9 The schematic view of the winding roller assembly provided by the embodiment of the application;

[0032] Figure 10 The schematic view of the tension frame provided by the embodiment of the application;

[0033] Figure 11 The schematic view of the force receiving frame and the mounting support provided by the embodiment of the application;

[0034] Figure 12 The partial schematic view of the adjusting device provided by the embodiment of the application;

[0035] Figure 13 The schematic view of the adhesive sleeve body and the rectangular frame provided by the embodiment of the application;

[0036] Icon: anti-wringing sleeve 1; adhesive sleeve body 101; inflatable air bag strip 102; flow guide pipe 103; inflation cylinder 104; inflation piston plate 105; piston rod 106; transmission pressure frame 107; winding structure 2; flexible pressure sensor 3; winding roller assembly 4; rotating seat one 401; rotating seat two 402; winding roller one 403; winding roller two 404; tension frame 5; limiting pressure block 501; force receiving frame 6; rectangular frame 7; threading port 8; mounting support 9; overpressure sliding plate 10; guide sliding block 11; pressure guide roller 12; force receiving block 13. DETAILED DESCRIPTION

[0037] In order to make the technical solutions in the embodiments of the present application clear, complete and easy to understand, obviously, the described embodiments are only some of the embodiments of the present application, but not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0039] Embodiment 1

[0040] Please refer to Figures 1-13 The present application provides a method for adjusting an anti-wringing safety belt, comprising the following steps:

[0041] The adjusting device is installed in the contact area between the safety belt and the user, and the winding structure 2 of the adjusting device is used to wind part of the belt body of the safety belt; when the user wears the safety belt, the anti-wringing sleeve 1 of the adjusting device is in contact with the user's body.

[0042] When the safety belt is tightened due to sudden braking, jolting or collision of the vehicle, the winding structure 2 of the adjusting device is used to absorb energy and buffer, and the tightness of the safety belt is automatically adjusted.

[0043] When the user wears the safety belt, the flexible pressure sensor 3 inside the anti-wringing sleeve 1 is in contact with the user's body, the flexible pressure sensor 3 is used to detect the pressure in the contact area between the safety belt and the human body in real time, when the pressure reaches a first preset pressure value, part of the belt body of the safety belt is unwound by the winding structure 2, so as to reduce the pressure of the safety belt on the user.

[0044] The working principle and technical effects of the above technical solutions are:

[0045] The adjusting method of the anti-injury safety belt of the application installs the adjusting device in the contact area of the safety belt and the user, winds part of the belt body of the safety belt through the winding structure 2 of the adjusting device, and makes the anti-injury sleeve 1 of the adjusting device contact the body and the flexible pressure sensor 3 inside the anti-injury sleeve 1 contact the body when the user wears the safety belt. In the normal driving process of the vehicle, the safety belt is in the normal wearing state, the winding structure 2 maintains the status quo, the anti-injury sleeve 1 plays a certain buffering and contact area increasing role, the anti-injury sleeve 1 is made of flexible material and plays a preliminary buffering and anti-injury effect, and the flexible pressure sensor 3 detects the pressure of the contact area in real time. When the vehicle appears sudden braking, bumping or collision, the safety belt will be tightened, at which time the winding structure 2 of the adjusting device starts to work, absorbs energy and buffers through its own structural characteristics, and automatically adjusts the tightness of the safety belt to avoid sudden over-tightening of the safety belt. At the same time, the flexible pressure sensor 3 continuously detects the pressure of the contact area between the safety belt and the human body in real time. When the detected pressure reaches the first preset pressure value, it means that the pressure of the safety belt on the user's body is too large and may cause injury and other discomfort. At this time, the system controls the winding structure 2 to unwind part of the belt body of the safety belt to reduce the pressure of the safety belt on the user and make it return to a more comfortable state. In the application, the anti-injury sleeve 1 increases the contact area between the safety belt and the human body, disperses the pressure, reduces the feeling of being squeezed by the safety belt from the physical level, and makes the user feel more comfortable when wearing the safety belt normally. In the case of sudden braking, bumping or collision of the vehicle leading to tightening of the safety belt, the energy absorption and automatic adjustment function of the winding structure 2 avoids the strong compression caused by sudden tightening of the safety belt, and automatically unwinds the safety belt when the pressure reaches a certain value, further reducing the pressure on the user's body and improving the comfort of riding. Through the real-time monitoring of the flexible pressure sensor 3 and the unwinding of the safety belt when the pressure is too large, it can effectively prevent the user from being injured by the safety belt, such as avoiding rib fractures, soft tissue contusions and other situations. In addition, although the safety belt will be unwound when the pressure is too large, this is done on the premise that the user will not be injured by the safety belt, and the safety belt can still play a certain role in restraining and protecting the user to a certain extent, ensuring that the user will not be injured by the safety belt when the vehicle is in danger, and affecting the overall safety protection effect. In the application, the use of the flexible pressure sensor 3 realizes real-time monitoring of the contact pressure between the safety belt and the human body, can automatically respond to the unwinding of the safety belt according to the monitored pressure, does not need manual intervention of the user, and meets the comfort and safety requirements of the human body. In the application, the flexible pressure sensor 3 is a PVDF piezoelectric film sensor with a thickness of 0.1 mm, a bending resistance of >100,000 times and good stability.

[0046] When the flexible pressure sensor 3 detects that the pressure reaches the second preset pressure value, the portion of the seat belt body is rewound by the winding structure 2, preventing the seat belt from failing to protect the user when the vehicle is suddenly braked, jolted, or has a large impact; the second preset pressure value is greater than the first preset pressure value.

[0047] When the vehicle is suddenly braked, jolted, or has a large impact, the seat belt may become too loose due to unwinding in the early stage to relieve pressure. When the flexible pressure sensor 3 detects that the pressure reaches the second preset pressure value (greater than the first preset pressure value), the winding structure 2 rewinds the portion of the seat belt body, preventing the seat belt from failing to effectively restrain the user and ensuring that the seat belt still plays a protective role in extreme situations, reducing the risk of the user being displaced and colliding in the vehicle due to a loose seat belt. When the vehicle is in severe motion, the human body will have a large displacement trend due to inertia. Rewinding the seat belt can better fit the human body, providing continuous and stable restraint force for the user according to the principle of human body dynamics, reducing the likelihood of serious injury to the user, such as preventing the user's head, chest, and other important parts from colliding with hard objects in the vehicle, and achieving dynamic self-adaptive adjustment of the tightness of the seat belt. Unwinding the seat belt when the pressure reaches the first preset pressure value in the early stage is to reduce the risk of injury and improve comfort; rewinding the seat belt when the pressure reaches a higher second preset pressure value is a re-optimization of the tightness of the seat belt under the premise of safety, achieving a dynamic balance adjustment mechanism that balances comfort and safety, so that the seat belt can perform optimally in different driving conditions and pressure conditions. Through precise adjustment of the tightness of the seat belt, the limitations of a single fixed tightness mode are avoided, and in different degrees of vehicle abnormality, appropriate adjustments can be made according to the actual pressure situation, so that the seat belt always remains in a state that can both reduce the user's burden and effectively protect, thereby improving the overall protection performance of the seat belt. The first and second preset pressure values can be adjusted according to the needs of different user groups (such as different ages, body types, and physical conditions), meeting individual safety and comfort requirements and having wide applicability, suitable for various types of vehicles and different use scenarios, improving the versatility and practicality of the seat belt adjustment system.

[0048] Embodiment 2

[0049] Please refer to Figures 1-13The application further provides an adjusting device for adjusting the tightness of a safety belt by using the adjusting method, comprising: a choke-preventing sleeve 1 and a winding structure 2; after the choke-preventing sleeve 1 is installed on the safety belt, a part of the safety belt is pulled out from the installation opening of the choke-preventing sleeve 1 away from the user side and is sleeved on the winding structure 2, and then the winding structure 2 is connected and fixed with the installation opening of the choke-preventing sleeve 1, so that when the safety belt is tightened due to the sudden braking, bumping or collision of the vehicle, the energy absorption and buffering are performed by the choke-preventing sleeve 1 and the winding structure 2. The winding structure 2 comprises: a winding roller assembly 4 for threading the safety belt, the winding roller assembly 4 is arranged on a tension frame 5, the tension frame 5 is slidably arranged in a back-shaped sliding groove of a force receiving frame 6, and an energy absorption spring is connected between the bottom surface of the back-shaped sliding groove and the tension frame 5; the force receiving frame 6 is fixed in the middle of an installation support 9, the four corners of the installation support 9 are connected on a rectangular frame 7 of the installation opening of the choke-preventing sleeve 1 by bolts, and two threading openings 8 for threading the safety belt are formed between the two ends of the installation support 9 and the rectangular frame 7.

[0050] The working principle and technical effects of the above technical solution are that: the adjusting device is connected with the safety belt by a detachable connection structure, is installed according to actual needs, and can be conveniently installed or disassembled for different use scenes or user needs, so that the flexibility of use is greatly improved.

[0051] In the installation, the anti-leather sleeve 1 is separated from the winding structure 2, first, the anti-leather sleeve 1 is installed on the safety belt, then the part of the safety belt is pulled out from the installation port of the anti-leather sleeve 1 away from the user side and is sleeved on the winding roller assembly 4 of the winding structure 2, and then the four corners of the installation support 9 of the winding structure 2 are bolted on the rectangular frame 7 of the installation port of the anti-leather sleeve 1, so that the connection of the safety belt and the adjusting device is completed, and the step-by-step installation mode makes the installation process clearer and simpler, even non-professionals can easily complete the installation, and the difficulty and cost of installation are reduced; at this time, in addition to being sleeved on the winding roller assembly 4, the safety belt is also arranged in the two through-winding ports 8 formed between the installation support 9 and the rectangular frame 7 for passing through the safety belt, so that the connection of the safety belt in the adjusting device is more stable, and it can be ensured that the safety belt will not easily separate from the adjusting device even if it is subjected to various external forces during the driving of the vehicle, thereby ensuring the normal work of the adjusting device; when the safety belt is tightened due to the sudden braking, bumping or collision of the vehicle, the safety belt will generate pressure on the winding roller assembly 4, at this time, the winding roller assembly 4 will slide in the back-shaped sliding groove of the force receiving frame 6, and compress the plurality of energy-absorbing springs in the back-shaped sliding groove of the force receiving frame 6, so as to play the role of elastic tensioning and buffering through the plurality of energy-absorbing springs, which can effectively absorb and disperse the great impact force generated when the safety belt is suddenly tightened, avoid the safety belt from causing excessive injury or other harm to the human body, and protect the safety of the passengers.

[0052] Embodiment 3

[0053] Please refer to Figures 1-13 The application also provides an adjusting device, wherein the winding roller assembly 4 comprises: a rotating seat one 401 and a rotating seat two 402 oppositely arranged at two ends of the tension frame 5, a winding roller one 403 fixed between the rotating seat one 401 and the rotating seat two 402, and a winding roller two 404 slidingly connected in a transverse through hole of the rotating seat two 402, one end of the winding roller two 404 being screwed in an internal threaded groove of the rotating seat one 401, and the other end of the winding roller two 404 being provided with a rotating head; the winding roller one 403 and the winding roller two 404 form a clamping groove for passing through the safety belt; and the outer end of the rotating seat one 401 is connected with a winding and unwinding motor installed on the tension frame 5.

[0054] The working principle and technical effects of the above technical solution are: in the adjusting device, the clamping groove for threading the safety belt is formed between the winding roller one 403 and the winding roller two 404. When the safety belt is installed, the rotating head is rotated to drive the winding roller two 404 to rotate, so that the winding roller two 404 is separated from the internal thread groove of the rotating seat one 401. Then the winding roller two 404 is pulled out and the safety belt is sleeved on the winding roller one 403. Then the winding roller two 404 is threaded and pressed on the side surface of the safety belt away from the winding roller one 403. By rotating the rotating head, the winding roller two 404 is reconnected in the internal thread groove of the rotating seat one 401. In use, the winding roller one 403 and the winding roller two 404 can be in a free state, i.e. not to wind the safety belt, and only rely on the energy-absorbing spring for elastic buffering. It can also be adjusted: the winding roller one 403 and the winding roller two 404 can be adjusted to wind the part of the safety belt. It is convenient for subsequent unwinding or winding of the safety belt. More adjustment, in this state, the winding motor can control the rotating seat one 401 to rotate, and the rotating seat one 401 can drive the winding roller one 403, the winding roller two 404 and the rotating seat two 402 to rotate, so as to wind the safety belt threaded in the clamping groove through the rotation of the winding roller one 403 and the winding roller two 404. When the user wears the safety belt, the flexible pressure sensor 3 in the inner side of the anti-leakage sleeve 1 is in contact with the user's body, and the flexible pressure sensor 3 can detect the pressure of the contact area between the safety belt and the human body in real time. When the pressure reaches the first preset pressure value, the winding structure 2 is used to unwind the part of the safety belt, so as to reduce the pressure of the safety belt on the user. When the flexible pressure sensor 3 detects that the pressure reaches the second preset pressure value, the winding structure 2 is used to rewind the part of the safety belt, so as to prevent the safety belt from failing to protect the user when the vehicle is suddenly braked, jolted or collided with a large amplitude, and meet the use requirements of more actual situations.

[0055] Example 4

[0056] Please refer to Figures 1-13Two limiting pressure blocks 501 are fixed on the tension frame 5, and slide relative to each other in the limiting slide way on both sides of the force frame 6. The outer side of the limiting pressure block 501 is a slanting pressure surface which is inclined from outside to inside. The two ends of the mounting support 9 are provided with two guide grooves which are in one-to-one communication with the two threading openings 8. A pressure overload sliding plate 10 is slidably connected in each guide groove. A tension spring is fixed between the pressure overload sliding plate 10 and the inner side of the guide groove. The end of the pressure overload sliding plate 10 close to the force frame 6 is connected with a guide sliding block 11 which is slidably arranged on the guide slide way on the outer side of the mounting support 9. A pressure guide roller 12 for guiding and pressing the safety belt is arranged at the end of the pressure overload sliding plate 10 which is inserted into the threading opening 8. A force block 13 is fixed on each guide sliding block 11. The side of each force block 13 close to the force frame 6 is provided with a pressure receiving inclined surface which is used for cooperating with the slanting pressure surface. When the tension frame 5 and the limiting pressure block 501 are moved to the preset distance in the direction of the mounting support 9 driven by the winding roller assembly 4, the slanting pressure surface contacts with the pressure receiving inclined surface, and the two force blocks 13 move away from each other.

[0057] The working principle and technical effects of the above technical solution are as follows: when the safety belt is tightened greatly due to the sudden braking, bumping or collision of the vehicle, the pressure generated by the safety belt on the winding roller assembly 4 is large, and the tension frame 5 drives the two limiting pressure blocks 501 to move in the direction of the mounting support 9 when the winding roller assembly 4 drives the tension frame 5 to slide to the preset distance in the force frame 6. When the slanting pressure surface of the two limiting pressure blocks 501 contacts with the pressure receiving inclined surface of the two force blocks 13, the two force blocks 13 can be pressed to move away from the force frame 6 synchronously. At this time, the two force blocks 13 drive the two pressure overload sliding plates 10 to slide outward through the two guide sliding blocks 11, and stretch the multiple tension springs. Therefore, when the pressure is large, the elastic strength is improved through the multiple tension springs, and the displacement buffer speed of the tension frame 5 is gradually reduced. In this way, the problem of too soft buffer is avoided while the buffer is ensured. When the two pressure overload sliding plates 10 slide outward, the two pressure guide rollers 12 can press the safety belt against the inner side of the rectangular frame 7, further reducing the probability of safety belt loosening, and ensuring the protection function of the safety belt itself.

[0058] Example 5

[0059] Please refer to Figures 1-13The anti-suiting 1 comprises: a bonding sleeve body 101 provided with a mounting port, one end of the bonding sleeve body 101 is provided with a magic tape subface, and the other end is provided with a magic tape mother face; one side of the bonding sleeve body 101 in contact with the user is provided with two air bag assembly grooves, the inflation air bag strips 102 in the two air bag assembly grooves are connected with two flow guide pipes 103 fixed on the rectangular frame 7 of the mounting port through air pipes arranged in the mounting hole of the bonding sleeve body 101, the two flow guide pipes 103 are sealingly connected with two air ports of the inflator 104, the inflator 104 is fixed in the rectangular center hole of the force frame 6; the inflator 104 is sealingly and slidably provided with an inflator piston plate 105, the inflator piston plate 105 is fixed on one end of two piston rods 106, the middle parts of the two piston rods 106 are slidably arranged on two end plates of the open end of the inflator 104, one end of the two piston rods 106 penetrating out of the inflator 104 is fixed with a transmission pressure frame 107 arranged opposite to the winding roller assembly 4, and the transmission pressure frame 107 is fixed with a return tension spring 108 between the two end plates; when the winding roller assembly 4 moves to the direction of the mounting support 9 to a preset distance, the winding roller assembly 4 can contact the transmission pressure frame 107, so as to control the inflator piston plate 105 to deliver the gas in the inflator 104 to the two inflation air bag strips 102.

[0060] The working principle and technical effects of the above technical solution are as follows: in the adjusting device, when the vehicle is suddenly braked, bumpy or collided, the safety belt is tightened to a large extent, the safety belt generates a large pressure on the winding roller assembly 4, and the winding roller assembly 4 drives the tension frame 5 to slide in the force frame 6 to a preset distance, the winding roller assembly 4 contacts the transmission pressure frame 107, so as to drive the transmission pressure frame 107 to move to the direction of the inflator 104, at this time, the transmission pressure frame 107 drives the inflator piston plate 105 to slide in the inflator 104 through the two piston rods 106, and stretches the return tension spring 108, not only the return tension spring 108 can play a role in enhancing the elastic buffer, but also the gas in the inflator 104 can be delivered to the two inflation air bag strips 102 through the two flow guide pipes 103 and the two air pipes, so that the inflation range of the two inflation air bag strips 102 is larger, and the two inflation air bag strips 102 are effectively attached to the user's body, reducing the damage of the safety belt to the user; the inflation range of the inflation air bag strip 102 is automatically adjusted according to the tightening range of the safety belt, when the vehicle is suddenly braked, bumpy or collided to a small extent, the safety belt is tightened to a small extent, and the air bag strip may only be inflated to a small extent; when the situation is more serious and the safety belt is tightened to a large extent, the air bag strip will be fully inflated, and the self-adaptive adjustment mechanism can provide the most suitable protection for the user according to the actual situation, improving the pertinence and effectiveness of the protection.

[0061] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0062] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0063] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and implementation listed in the specification and embodiments, and it can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A laceration-preventing harness adjustment device, characterized by, The application relates to a safety belt anti-choking and winding structure. The winding structure comprises a winding roller assembly for passing the safety belt, the winding roller assembly is arranged on a tension frame, the tension frame is slidably arranged in a back-shaped sliding groove of a force receiving frame, an energy-absorbing spring is arranged between the bottom surface of the back-shaped sliding groove and the tension frame, the force receiving frame is fixed in the middle of a mounting support, the four corners of the mounting support are connected to a rectangular frame of the anti-choking mounting port through bolts, and two passing ports for passing the safety belt are formed between the two ends of the mounting support and the rectangular frame. The anti-choking structure comprises a bonding sleeve body provided with the mounting port, a magic tape sub-surface is arranged at one end of the bonding sleeve body, and a magic tape mother surface is arranged at the other end; two air bag assembly grooves are arranged on the side of the bonding sleeve body in contact with the user, the two air bag assembly grooves are connected to two flow guide pipes fixed on the rectangular frame of the mounting port through air pipes arranged in mounting holes of the bonding sleeve body, the two flow guide pipes are sealingly connected to two air ports of an air cylinder, the air cylinder is fixed in a rectangular center hole of the force receiving frame, a charging piston plate is sealingly slidably arranged in the air cylinder, the charging piston plate is fixed at one end of two piston rods, the middle parts of the two piston rods are slidably arranged on two end plates of the open end of the air cylinder, one end of the two piston rods penetrating out of the air cylinder is fixed with a transmission pressure frame arranged opposite to the winding roller assembly, and a return tension spring is fixed between the transmission pressure frame and the two end plates; when the winding roller assembly moves to a preset distance in the direction of the mounting support, the winding roller assembly can be in contact with the transmission pressure frame, so that the charging piston plate can deliver the gas in the air cylinder to the two air bag strips. The application further relates to a flexible pressure sensor mounted on the side of the anti-choking structure in contact with the user's body, a controller electrically connected to the flexible pressure sensor, and the winding structure electrically connected to the controller.

2. The adjustment device of claim 1, wherein The winding roller assembly comprises a rotating seat one and a rotating seat two oppositely arranged at the two ends of the tension frame, a winding roller one is fixed between the rotating seat one and the rotating seat two, a winding roller two is slidably connected in the transverse through hole of the rotating seat two, one end of the winding roller two is screwed in the internal thread groove of the rotating seat one, and the other end of the winding roller two is provided with a rotating head; the winding roller one and the winding roller two form a clamping groove for passing the safety belt; and the outer end of the rotating seat one is connected with a retractable motor mounted on the tension frame. ​ 3. The adjustment device of claim 1, wherein, ​ 4. The adjustment device of claim 1, wherein The two limiting pressure blocks are fixed on the tension frame and slide on the limiting slide ways on both sides of the force frame, the outer side of the limiting pressure block is a slanting pressure surface which is inclined from outside to inside, both ends of the mounting support are provided with two guide grooves which are in one-to-one communication with the two threading openings; a pressure-over sliding plate is slidably connected in each guide groove, a tension spring is fixed between the pressure-over sliding plate and the inner side of the guide groove, one end of the pressure-over sliding plate close to the force frame is connected with a guide sliding block which is slidably arranged on the outer side of the mounting support, one end of the pressure-over sliding plate inserted into the threading opening is provided with a pressure guide roller for guiding and pressing the safety belt; a force block is fixed on each guide sliding block, the force blocks on the side close to the force frame are each provided with a pressure receiving inclined surface for cooperating with the slanting pressure surface, when the tension frame and the limiting pressure block are moved to a preset distance in the direction of the mounting support under the driving of the winding roller assembly, the slanting pressure surface contacts with the pressure receiving inclined surface and makes the two force blocks move away from each other.

5. A method of conditioning, applied to the conditioning device according to any one of claims 1-4, characterized in that, The method comprises the following steps: The adjusting device is installed in the contact area of the safety belt and the user, and a part of the belt body of the safety belt is wound by the winding structure of the adjusting device; When the user wears the safety belt, the anti-pulling sleeve of the adjusting device is in contact with the user's body; When the safety belt is tightened due to the sudden braking, bumping or collision of the vehicle, the energy absorption and buffering are performed by the winding structure of the adjusting device, and the tightness of the safety belt is automatically adjusted.

6. The conditioning method of claim 5, wherein, When the user wears the safety belt, the flexible pressure sensor inside the anti-pulling sleeve is in contact with the user's body, and the pressure in the contact area of the safety belt and the human body is detected in real time by the flexible pressure sensor; when the pressure reaches a first preset pressure value, a part of the belt body of the safety belt is unwound by the winding structure, so as to reduce the pressure of the safety belt on the user.

7. The conditioning method of claim 6, wherein, When the flexible pressure sensor detects that the pressure reaches a second preset pressure value, a part of the belt body of the safety belt is rewound by the winding structure, so as to prevent the safety belt from failing to protect the user when the amplitude of the sudden braking, bumping or collision of the vehicle is large; The second preset pressure value is greater than the first preset pressure value.

8. The conditioning method of claim 6, wherein, The flexible pressure sensor is a PVDF piezoelectric film sensor.

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