CN210126504U

CN210126504U - Three-point safety belt for school bus

Info

Publication number: CN210126504U
Application number: CN201921092105.9U
Authority: CN
Inventors: 李静; 贾延林; 于子强
Original assignee: Jinzhong Vocational and Technical College
Current assignee: Jinzhong Vocational and Technical College
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-03-06
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to a bikini safety belt for school bus, it is including installing the coiler in seat one side and fixing the hasp at the seat opposite side, and follow the bandage that stretches out in the coiler, the cover is equipped with the spring bolt with hasp matched with on the bandage, be located the automobile body top and install the cover and establish the director of bandage, install the elevating gear of height about the adjustment director between automobile body and the director, elevating gear is including being the vertical guide rail of fixing on the automobile body inner wall, and the slider that is connected with the director through an outer edgewise, the slider suit is in the slide, the director stretches out from dodging the gap through outer edgewise, the last locking device who installs fixed director oscilaltion height. The three-point safety belt for the school bus can enable the safety belt originally positioned at the neck or the head of a child to be adjusted to the chest position by adjusting the vertical height of the guider, the height of the guider is fixed by using a locking device with semi-automatic operation, the operation is simple, and the child can operate by one hand.

Description

Three-point safety belt for school bus

Technical Field

The utility model relates to a three-point type safety belt for school bus, specific three-point type safety belt for school bus that director height-adjustable says so.

Background

In recent years, school bus accidents frequently occur, the safety of school buses arouses wide social attention, and the observation shows that the two-point safety belt used by the existing school buses cannot provide comprehensive and effective protection for children passengers, and the necks of the children passengers are easily seriously damaged in the front collision process of the school buses. The three-point safety belt which has a good protection effect on passengers is generally accepted, but the three-point safety belt is designed according to the body size of adults, the body size and the characteristic of children are greatly different from those of adults, and the body size proportion of children in the same age group is greatly different, so that the three-point safety belt which has a better protection effect than the two-point safety belt is abandoned on a school bus.

Therefore, it is an important issue to provide a three-point seat belt suitable for a child occupant.

Disclosure of Invention

The utility model aims at the above-mentioned problem provide one kind install on the director can with automobile body complex elevating gear and high locking device to be fit for the school bus-used bikini safety belt of the children passenger use of different stature proportions.

In order to achieve the above object, the utility model relates to a bikini safety belt for school bus, including installing the coiler on one side of seat and fixing the hasp at the seat opposite side to and follow the bandage that stretches out in the coiler, the cover is equipped with the spring bolt with hasp matched with on the bandage, and its structural feature is: be located the automobile body top and install the cover and establish the director of bandage, director and coiler are located same one side of seat, install the elevating gear of adjustment director height from top to bottom between automobile body and the director, and elevating gear is including being the vertical guide rail of fixing on the automobile body inner wall, has seted up the slide that runs through the guide rail both ends in the guide rail, still is equipped with one on the guide rail and coincides mutually with slide length and runs through the guide rail and dodge the gap, elevating gear still includes the slider that is connected with the director through an outer edgewise, the section shape phase-match of slider and the section shape of slide, and the slider suit is in the slide, and the director stretches out from dodging the gap through outer edgewise, the last locking device who installs fixed director oscilaltion height.

The guide and the lifting device used by the seat on the side close to the aisle can be arranged on the side edge of the seat back or an upright post specially used for installing the lifting device is arranged.

Because the size proportion of the children passengers is huge, for the children with small body size, the safety belt is often positioned at the neck or the head of the children after being pulled out, so that the children are uncomfortable and the safety is reduced. The utility model provides a three-point type safety belt of director height-adjustable, installation and director matched with guide rail on the automobile body for the director can slide from top to bottom along the guide rail, and fixes the director height through locking device after selecting suitable position, thereby makes the safety belt pull out the back and lies in passenger's chest position, and the great children passenger's of the body scale of being convenient for uses.

The locking device comprises an ejector rod inserted in the guider and capable of sliding back and forth, the end part of the ejector rod faces the guide rail, the ejector rod penetrates through the guider, two ends of the ejector rod can partially extend out, a ring-mounted convex edge is arranged on the outer wall of the ejector rod, a first reset top spring is sleeved on the ejector rod, one end of the first reset top spring abuts against the convex edge, the other end of the first reset top spring abuts against a rear shell of the guider, the first reset top spring applies forward thrust to the ejector rod, so that the ejector rod cannot be matched with the positioning groove under the condition of no external force, the front side of the guide rail is provided with the positioning groove, the positioning groove corresponds to the ejector rod of the extending-out guider and is matched with the cross section shape, the outer wall of the left side of the ejector rod is provided with a limiting groove, the locking device further comprises a limiting block capable of sliding left and right on the left side of the ejector rod, the left side of the limiting block is, when the stopper did not form the cooperation with the spacing groove, the second reset top spring promoted the stopper to make the stopper paste on the left side outer wall at the ejector pin, the cross sectional shape of stopper and the cross sectional shape phase-match of spacing groove, spacing groove and stopper cooperation position are located the ejector pin and slide into constant head tank department, and the stopper right side is equipped with the pressure piece of exploring out the director, according to the degree of depth that the length of exploring out of piece is greater than or equal to the spacing groove.

When the height of the guider is adjusted up and down, the pressing block is pressed down, and the ejector rod is popped out by the first reset top spring because the limiting block is separated from the clamping with the limiting groove at the moment, so that the ejector rod is separated from the clamping state with the positioning groove, and the guider can be held to enable the guider to slide up and down along the guide rail at the moment.

The director selects to be fit for highly the back and presses the ejector pin, and the ejector pin stretches into in the constant head tank, because the stopper is reset by the second this moment and pushes up the top spring top tightly on the lateral wall of ejector pin, after the ejector pin is pushed into suitable degree of depth, the second resets and pushes up the spring and tightly at the spacing inslot with the stopper top, because the cooperation of stopper and spacing groove, the ejector pin can't pop out from the constant head tank, because the cooperation of ejector pin and constant head tank, the height of director is fixed.

The constant head tank is seted up a plurality ofly and is arranged along guide rail length direction. One positioning groove corresponds to one height gear of the guider, and the positioning grooves can enable the height gear of the guider to have a larger operable range, so that the guider is suitable for students with large body proportion difference.

The lower part of the guider is provided with a hanging ring sleeved on the binding band. The binding band can slide in the hanging ring, and the hanging ring can be fixed with the guider or can be rotatable with the guider.

Because above-mentioned technical scheme's application is following right the utility model discloses an advantage effect carries out concrete analysis.

The utility model relates to a bikini safety belt for school bus, the structure is reliable, convenient to use, and the upper and lower high safety belt that can make originally to be located children's neck or head through the adjustment director adjusts the chest position, uses the locking device who has semi-automatic operation highly fixed to the director, easy operation, but children one-hand operation, the director is provided with a plurality of high gears, is fit for the big student passenger's use of figure proportion difference.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front view of the guide device and the guide rail of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic axial side view of the locking device.

In the figure: the device comprises a guide rail 1, a guider 2, a hanging ring 3, a binding belt 4, a vehicle body 5, a retractor 6, a lock catch 7, a lock tongue 8, a seat 9, a sliding block 10, a mandril 11, a limiting block 12, a limiting groove 13, a first reset top spring 14, a slideway 15, a second reset top spring 16, a pressing block 17, a positioning groove 18 and a convex edge 19.

Detailed Description

Referring to the attached drawings, the utility model discloses a three-point safety belt for school bus, including install the coiler 6 and fix at seat 9 one side of seat 9 opposite side hasp 7, and stretch out bandage 4 from coiler 6, the cover is equipped with the spring bolt 8 with hasp 7 matched with on the bandage 4, lie in car body 5 and install the director 2 of cover setting up bandage 4 above, director 2 and coiler 6 are located the same side of seat 9, install the elevating gear of adjustment director 2 height from top to bottom between car body 5 and the director 2, the elevating gear includes and is fixed on the guide rail 1 on the car body 5 inner wall vertically, the interior slide 15 that runs through the guide rail 1 both ends that is equipped with of guide rail 1, still be equipped with one on the guide rail 1 with slide 15 length coincide and run through guide rail 1 and dodge the gap, the elevating gear still includes the slider 10 that is connected with director 2 through an outer edgewise, the section shape of slider 10 and the section shape phase-match of slide 15, slider 10 suit are in the slide, and director 2 stretches out from dodging the gap through outer edgewise, the last locking device who installs the fixed 2 oscilaltion heights of director of elevating gear.

Referring to fig. 1, the guide 2 and the lifting device used for the seat 9 located on the side near the aisle may be mounted on the side of the seat back or a post dedicated to mounting the lifting device may be provided.

Because the size proportion of the children passengers is huge, for the children with small body size, the safety belt is often positioned at the neck or the head of the children after being pulled out, so that the children are uncomfortable and the safety is reduced. The utility model provides a 2 height-adjustable's of director three-point type safety belts, installation and 2 matched with guide rail 1 of director on the automobile body for 2 can be followed guide rail 1 and slided from top to bottom to fix 2 height of director through locking device behind the selected suitable position, thereby make the safety belt pull out the back and be located passenger's chest position, the great child passenger's of the body scale difference of being convenient for uses.

For the convenience of describing the locking device of the present invention, when describing the specific structure of the locking device, the left side of fig. 4 is defined as the left side of the locking device, and the upper side of fig. 4 is defined as the rear side of the locking device.

Referring to fig. 4 and 5, the locking device includes a top rod 11 inserted into the guide 2 and capable of sliding back and forth, the end of the top rod 11 faces the guide rail 1, the top rod 11 penetrates the guide 2 and the two ends of the top rod can partially protrude out, a ring-mounted convex edge 19 is arranged on the outer wall of the top rod 11, a first reset top spring 14 is sleeved on the top rod 11, one end of the first reset top spring 14 abuts against the convex edge 19, and the other end of the first reset top spring abuts against the rear shell of the guide 2.

The first reset top spring 14 applies a forward thrust to the top rod 11, so that the top rod 11 cannot be matched with the positioning groove 18 without external force, the front side of the guide rail 1 is provided with the positioning groove 18, the positioning groove 18 corresponds to the top rod 11 of the extension guide 2 and is matched with the cross section shape, the outer wall of the left side of the top rod 11 is provided with a limiting groove 13, the locking device further comprises a limiting block 12 which is positioned at the left side of the top rod 11 and can slide left and right, the left side of the limiting block 12 is provided with a second reset top spring 16, the left end of the second reset top spring 16 is propped against the limiting block 12, the right end of the second reset top spring 16 is propped against the inner wall of the guide 2, when the limiting block 12 is not matched with the limiting groove 13, the second reset top spring 16 pushes the limiting block 12, and enables the limiting block 12 to be clung against the outer wall of the left side of the top rod 11, the cross section shape of the limiting block 12 is, the right side of the limiting block 12 is provided with a pressing block 17 extending out of the guide 2, and the extending-out length of the pressing block 17 is larger than or equal to the depth of the limiting groove 13.

When the height of the guider 2 is adjusted up and down, the pressing block 17 is pressed down, and the limit block 12 is disengaged from the limit groove 13 at the moment, so that the ejector rod 11 is ejected by the first reset ejector spring 14, the ejector rod 11 is disengaged from the positioning groove 18, and the guider 2 can be held at the moment to enable the guider 2 to slide up and down along the guide rail 1.

The ejector rod 11 is pressed down after the guider 2 is selected to be suitable for the height, the ejector rod 11 extends into the positioning groove 18, the limiting block 12 is tightly pressed on the side wall of the ejector rod 11 through the second resetting ejection spring 16 at the moment, after the ejector rod 11 is pushed into the proper depth, the limiting block 12 is tightly pressed in the limiting groove 13 through the second resetting ejection spring 16, the ejector rod 11 cannot be ejected out of the positioning groove 18 due to the matching of the limiting block 12 and the limiting groove 13, and the height of the guider 2 is fixed due to the matching of the ejector rod 11 and the positioning groove 18.

Referring to fig. 1, the positioning groove 18 is opened in a plurality and arranged along the length direction of the guide rail 1. One positioning groove 18 corresponds to one height gear of the guide 2, and a plurality of positioning grooves 18 can enable the height gear of the guide 2 to have a larger operable range, so that the guide is suitable for students with large body proportions.

Referring to fig. 1 and 2, a hanging ring 3 sleeved on a binding belt 4 is arranged at the lower part of the guider 2. The binding belt 4 can slide in the hanging ring 3, and the hanging ring 3 can be fixed with the guider 2 or can be rotatable with the guider 2.

To sum up, the present invention is not limited to the above-mentioned specific embodiments. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications are intended to be within the scope of the present invention.

Claims

1. The utility model provides a three-point safety belt for school bus, is including installing coiler (6) on seat (9) one side and fixing hasp (7) at seat (9) opposite side to and bandage (4) that stretch out in coiler (6) are followed to the cover on bandage (4) and are equipped with hasp (7) matched with spring bolt (8), its characterized in that: be located automobile body (5) top and install director (2) that the cover established bandage (4), director (2) and coiler (6) are located same one side of seat (9), install the elevating gear of adjustment director (2) height from top to bottom between automobile body (5) and director (2), elevating gear is including being vertical guide rail (1) of fixing on automobile body (5) inner wall, slide (15) that run through guide rail (1) both ends are seted up in guide rail (1), still be equipped with one on guide rail (1) and coincide and run through guide rail (1) with slide (15) length and dodge the gap, elevating gear still includes slider (10) that are connected with director (2) through an outer edgewise, the section shape of slider (10) and the section shape phase-match of slide (15), slider (10) suit is in the slide, director (2) stretch out from dodging the gap through outer edgewise, and a locking device for fixing the up-down lifting height of the guider (2) is arranged on the lifting device.

2. The three-point seatbelt for a school bus according to claim 1, wherein: the locking device comprises an ejector rod (11) inserted in the guider (2) and capable of sliding forwards and backwards, the end part of the ejector rod (11) faces the guide rail (1), the ejector rod (11) penetrates through the guider (2) and the two ends of the ejector rod can partially extend out, a ring-mounted convex edge (19) is arranged on the outer wall of the ejector rod (11), a first reset top spring (14) is sleeved on the ejector rod (11), one end of the first reset top spring (14) abuts against the convex edge (19), the other end of the first reset top spring abuts against the rear side shell of the guider (2), a positioning groove (18) is arranged on the front side of the guide rail (1), the positioning groove (18) corresponds to the ejector rod (11) extending out of the guider (2) and is matched with the cross section shape, a limiting groove (13) is arranged on the outer wall of the left side of the ejector rod (11), the locking device further comprises a limiting block (12) capable of sliding left and right, a second reset top spring (16), the left end of the second reset top spring (16) abuts against the limiting block (12), the right end abuts against the inner wall of the guide device (2), the cross section of the limiting block (12) is matched with that of the limiting groove (13), the limiting groove (13) and the limiting block (12) are matched in position in the positioning groove (18) in which the ejector rod (11) slides, the right side of the limiting block (12) is provided with a pressing block (17) which stretches out of the guide device (2), and the stretching out length of the pressing block (17) is larger than or equal to the depth of the limiting groove (13).

3. The three-point seatbelt for a school bus according to claim 2, wherein: the positioning grooves (18) are formed in a plurality of positions and are arranged along the length direction of the guide rail (1).

4. The three-point seatbelt for a school bus according to claim 1, wherein: the lower part of the guider (2) is provided with a hanging ring (3) which is sleeved on the binding band (4).