CN111731221A

CN111731221A - Safety belt height adjuster

Info

Publication number: CN111731221A
Application number: CN202010628912.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Changsha Ninghu Machinery Equipment Co ltd
Current assignee: Deyuan automation technology (Yiwu) Co.,Ltd.
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-02
Anticipated expiration: 2040-06-29
Also published as: CN111731221B

Abstract

The invention discloses a safety belt height adjuster, which comprises a fixed plate and a sliding block, wherein the top of the fixed plate is provided with a fixed groove, the fixed groove is connected with the sliding block in a sliding way, one side of the sliding block, which is positioned outside the fixed groove, is connected with a connecting cover, the safety belt height adjuster adopts a screw rod and nut structure, a safety belt fixing device is associated with the nut and can slide to any position on a screw rod along with the nut, so that the height of a safety belt can be adjusted to any height according to the requirement of a passenger, and stepless adjustment is realized, the nut of the adjuster adopts a double-sided design, an internal thread is meshed with the screw rod, an external helical gear is meshed with helical teeth of a shifting piece, when an impact force is suddenly applied in the operation of a vehicle, the structure converts a pulling force into the maximum static friction force before the helical gear rotates and the torque of the shifting piece, so that the structure is stabilized at a predetermined height when subjected to an impact.

Description

Safety belt height adjuster

Technical Field

The invention relates to the technical field of safety belt height regulators, in particular to a safety belt height regulator.

Background

With the increasing number of automobiles, the safety performance of the automobile and the automobile is more and more emphasized by people, the safety belt on the automobile plays a crucial role in the passive safety of the automobile, and the current regulations have compelled the automobile to be equipped with the safety belt.

Most of the prior vehicle safety belt height adjusters are extremely adjustable, and the height is difficult to adjust to the height which is completely suitable for the height of a passenger, so that a safety belt height adjuster is provided.

Disclosure of Invention

The present invention is directed to a seat belt height adjuster that solves the problems set forth above in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a safety belt altitude controller, includes fixed plate and sliding block, the fixed slot has been seted up at the top of fixed plate, and sliding connection has the sliding block in the fixed slot, one side that is located the fixed slot outside of sliding block is connected with the connection lid, the fixed slot internal symmetry rotates and is connected with the threaded rod, the helical gear is installed to the internal symmetry of sliding block, be provided with the internal thread in the helical gear, threaded rod threaded connection is in the helical gear.

Preferably, the sliding block is internally and symmetrically provided with shifting pieces, the two shifting pieces are respectively connected to the outer side of the bevel gear, the bottom of the inner wall of the sliding block is symmetrically provided with a groove, a twisting support is arranged in the groove, two ends of the twisting support are respectively and rotatably connected with the two shifting pieces, the sliding block is internally and respectively provided with a first pressing plate and a second pressing plate, the first pressing plate is positioned above the second pressing plate, the end parts of the first pressing plate and the second pressing plate are respectively connected with the two twisting supports through connecting plates, and the connecting plates on the first pressing plate and the second pressing plate are respectively and slidably connected in the sliding block.

Preferably, the top and the bottom of plectrum all are provided with the stopper, and stopper and helical gear contact, the cross-section of plectrum becomes the arc structure, and the plectrum is located one side equidistance of helical gear and is provided with the latch, the latch cooperation is connected in the helical gear outside.

Preferably, the surface of the connecting cover is integrally provided with a limiting plate, the first pressing plate and the second pressing plate are both matched and slidably connected in the limiting plate, and the end parts of the first pressing plate and the second pressing plate penetrate through the limiting plate.

Preferably, the outer sides of the hinge supports are provided with stop blocks.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts a structure of a screw rod nut, a safety belt fixing device of the height regulator is associated with the nut and can slide to any position on the screw rod along with the nut, so that the height of the safety belt can be regulated to any height according to the requirement of a passenger, stepless regulation is realized, the nut of the height regulator adopts a double-sided design, an internal thread is meshed with the screw rod, an external helical gear is meshed with helical teeth of a shifting sheet, when the vehicle runs and is suddenly impacted, the structure converts tensile force into the maximum static friction force before the helical gear rotates and the torque of the shifting sheet to the helical gear, and the helical teeth of the helical gear increase the stressed area, so that the structure can be stabilized at the original height when the vehicle runs and is impacted.

Drawings

FIG. 1 is a schematic view of the overall connection structure of the present invention;

FIG. 2 is a schematic view of a connection structure of the sliding block and the fixing plate according to the present invention;

FIG. 3 is an enlarged view of the structure of the present invention at A;

FIG. 4 is a schematic view of the connection structure of the threaded rod and the helical gear of the present invention;

FIG. 5 is an enlarged view of the structure of the present invention at B.

In the figure: 1. a fixing plate; 2. fixing grooves; 3. a threaded rod; 4. a sliding block; 5. a connecting cover; 6. a limiting plate; 7. a first platen; 8. a second platen; 9. a helical gear; 10. a trench; 11. twisting and supporting; 12. a shifting sheet; 13. a limiting block; 14. and (4) clamping teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 3, the present invention provides a technical solution: the utility model provides a safety belt altitude controller, includes fixed plate 1 and sliding block 4, fixed slot 2 has been seted up at the top of fixed plate 1, and sliding connection has sliding block 4 in fixed slot 2, sliding block 4 be located 2 outside one sides of fixed slot and be connected with

connection lid

5, 2 internal symmetry rotations in fixed slot are connected with threaded rod 3, helical gear 9 is installed to sliding block 4 internal symmetry, be provided with the internal thread in

helical gear

9, 3 threaded connection of threaded rod are in helical gear 9.

Referring to fig. 4 and 5, the shifting plates 12 are symmetrically arranged in the sliding block 4, the two shifting plates 12 are respectively connected to the outer side of the helical gear 9, the bottom of the inner wall of the sliding block 4 is symmetrically provided with grooves 10, the grooves 10 are respectively provided with a hinge 11, two ends of the hinge 11 are respectively rotatably connected with the two shifting plates 12, the sliding block 4 is respectively provided with a first pressing plate 7 and a second pressing plate 8, the first pressing plate 7 is located above the second pressing plate 8, the end portions of the first pressing plate 7 and the second pressing plate 8 are respectively connected with the two hinge 11 through connecting plates, the connecting plates on the first pressing plate 7 and the second pressing plate 8 are respectively and slidably connected in the sliding block 4, and the sliding of the hinge 11 in the grooves 10 is conveniently controlled through the first pressing plate 7 and the second pressing plate 8, so that the connection of the two shifting plates 12 and the helical gear 9 can be controlled.

Referring to fig. 5, the top and the bottom of the poking piece 12 are provided with a limiting block 13, and the limiting block 13 contacts with the helical gear 9, the cross section of the poking piece 12 is in an arc structure, and the shifting sheet 12 is provided with latch 14 at the same distance at one side of the helical gear 9, the latch 14 is connected at the outer side of the helical gear 9 in a matching way, before use, the first pressing plate 7 and the second pressing plate 8 are in a spring open state, the twisted support 11 slides towards the middle along the groove 10, the upper and lower groups of twisted supports 11 change from bending to straight, thereby pushing the shifting sheets 12 at the left and right sides in the sliding block 4 to move towards opposite directions, because the sections of the shifting sheets 12 are arc-shaped, and the arc inner side is provided with a latch 14 which can be bonded with the helical gears 9, and because the helical structures are arranged inside the two helical gears 9, the helical gears can be meshed with the threaded rod 3, therefore, when the paddle 12 engages with the bevel gear 9, the bevel gear 9 is in a locked state, thereby locking the entire slide at a desired height.

Referring to fig. 1, a limiting plate 6 is integrally arranged on the surface of the connecting cover 5, the first pressing plate 7 and the second pressing plate 8 are both matched and slidably connected in the limiting plate 6, the end portions of the first pressing plate 7 and the second pressing plate 8 penetrate through the limiting plate 6, and the limiting plate 6 is arranged to limit the sliding of the first pressing plate 7 and the second pressing plate 8, so that the first pressing plate 7 and the second pressing plate 8 can slide in the limiting plate 6.

Referring to fig. 5, the stoppers are disposed on the outer sides of the twisted legs 11, so as to prevent the poking sheet 12 from rebounding to the middle when the helical gear 9 is unlocked accidentally, when the upper and lower twisted legs 11 are in a parallel state, the stoppers disposed on the outer sides of the twisted legs 11 lock the twisted legs 11 in one direction, prevent reverse bending, and enhance the structural stability.

The working principle is as follows: before use, the first pressing plate 7 and the second pressing plate 8 are in an elastic opening state, under the action of a spring between the first pressing plate 7 and the second pressing plate 8, the twisted support 11 slides towards the middle along the groove 10, the upper and lower groups of twisted supports 11 are changed from bending to straight lines, so that the shifting sheets 12 on the left and right sides inside the sliding block 4 are pushed to move towards opposite directions, the cross section of the shifting sheet 12 is arc-shaped, the clamping teeth 14 capable of being bonded with the helical gear 9 are arranged on the inner side of the arc-shaped, and the helical gear 9 can be meshed with the threaded rod 3 because the inner parts of the two helical gears 9 are of spiral structures, so that when the shifting sheet 12 is meshed with the helical gear 9, the helical gear 9 is in a locking state, so that the whole sliding device is locked at an original height, a user simultaneously presses the first pressing plate 7 and the second pressing plate 8 towards the middle part of the limiting plate 6 to enable the two forked plates connected with the first pressing plate, because the two hinge support shafts 11 can only slide in the grooves 10 at the rear parts of the connecting cover 5 and the sliding block 4, under the action of the hinge support shafts 11, the shifting sheets 12 connected with the hinge support shafts 11 simultaneously move towards the middle and are separated from the bevel gears 9 at two sides, at the moment, the bevel gears 9 are in a free state and can rotate along with the threaded rods 3 and move up and down, simultaneously, the sliding block 4 can also move up and down along the two threaded rods 3, under the free state of the sliding block 4, the sliding block 4 is adjusted to a proper height, the first pressing plate 7 and the second pressing plate 8 are loosened, the shifting sheets 12 are meshed with the bevel gears 9 again to be in a locking state, and the sliding block 4 is fixed at a target height.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safety belt altitude controller, includes fixed plate (1) and sliding block (4), fixed slot (2) have been seted up at the top of fixed plate (1), and sliding connection has sliding block (4), its characterized in that in fixed slot (2): the utility model discloses a sliding block, including sliding block (4), fixed slot (2), symmetrical rotation is connected with threaded rod (3) in fixed slot (2), sliding block (4) is located the outside one side of fixed slot (2) and is connected with connection lid (5), the internal symmetry of sliding block (4) installs helical gear (9), be provided with the internal thread in helical gear (9), threaded rod (3) threaded connection is in helical gear (9).

2. A seat belt height adjuster according to claim 1, wherein: the novel gear shifting mechanism is characterized in that shifting pieces (12) are symmetrically arranged in the sliding block (4), the two shifting pieces (12) are respectively connected to the outer side of the helical gear (9), grooves (10) are symmetrically formed in the bottom of the inner wall of the sliding block (4), twisting supports (11) are arranged in the grooves (10), two ends of each twisting support (11) are respectively rotatably connected with the two shifting pieces (12), a first pressing plate (7) and a second pressing plate (8) are respectively arranged in the sliding block (4), the first pressing plate (7) is located above the second pressing plate (8), the end portions of the first pressing plate (7) and the second pressing plate (8) are respectively connected with the two twisting supports (11) through connecting plates, and the connecting plates on the first pressing plate (7) and the second pressing plate (8) are respectively connected in the sliding block (4) in a sliding mode.

3. A seat belt height adjuster according to claim 1, wherein: the top and the bottom of plectrum (12) all are provided with stopper (13), and stopper (13) and helical gear (9) contact, the cross-section of plectrum (12) becomes the arc structure, and plectrum (12) are located one side equidistance of helical gear (9) and are provided with latch (14), latch (14) cooperation is connected in the helical gear (9) outside.

4. A seat belt height adjuster according to claim 2, wherein: connect the surperficial an organic whole of lid (5) and be provided with limiting plate (6), first clamp plate (7) and second clamp plate (8) all cooperate sliding connection in limiting plate (6), and the tip of first clamp plate (7) and second clamp plate (8) all passes limiting plate (6).

5. A seat belt height adjuster according to claim 2, wherein: and the outer sides of the twisting supports (11) are provided with stop blocks.