Electric safety belt height adjuster and vehicle

Abstract

The utility model provides an electric safety belt height adjuster and a vehicle, and belongs to the technical field of automobile parts. The sliding block is mounted on the fixed bracket in a sliding manner; the adjusting mechanism comprises a driving element, a driven belt wheel and a synchronous belt, the driving element and the driven belt wheel are both installed on the fixing support, the driving element and the driven belt wheel are sleeved with the two ends of the synchronous belt respectively, and the driving element and the driven belt wheel are both meshed with the synchronous belt; the sliding block is in linkage connection with the synchronous belt, the synchronous belt drives the sliding block to slide relative to the fixed support when moving, and when the sliding block generates a sliding trend under the action of external force, the synchronous belt locks the sliding block to limit the sliding of the sliding block relative to the fixed support; the electric control safety belt height adjuster has the advantages that position adjustment of the sliding block is achieved through the transmission belt structure, the safety belt height adjustment time is greatly shortened, and the response speed and adjustment flexibility of a system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and relates to an electric seat belt height adjuster and a vehicle. Background Art

[0002] With the rapid development of the automotive industry, automotive manufacturing technologies have been continuously enriched and improved. Consumers' requirements for automotive performance are also increasing. Among them, safety performance is one of the most concerned focuses of consumers. As an important part of vehicle safety, seat belts are mainly used to prevent drivers and passengers from colliding with the internal structure of the vehicle in case of an accident during vehicle driving. Currently, most vehicles are equipped with three-point seat belts and seat belt height adjusters, which allow users to adjust the height of the seat belt according to their personal height, thereby improving wearing comfort and safety.

[0003] Most of the existing seat belt height adjusters adopt manual adjustment, which is inconvenient to operate. In recent years, in order to meet the higher pursuit of passenger safety and comfort in modern vehicles, seat belt height adjusters driven by built-in motors have emerged. The core of this type of design is the screw drive principle, that is, a motor drives a threaded drive shaft to rotate, and the associated drive plate slides axially, thereby realizing the dynamic adjustment of the seat belt height.

[0004] However, the screw drive design also has certain defects in practical applications. The transmission efficiency of the screw structure is relatively low, and the response speed and adjustment speed are relatively slow, making it not flexible enough during actual adjustment. Summary of the Utility Model

[0005] The purpose of the present utility model is to address the above problems existing in the prior art and propose an electric seat belt height adjuster and a vehicle.

[0006] The purpose of the present utility model can be achieved by the following technical solutions: An electric seat belt height adjuster, comprising:

[0007] A fixed bracket;

[0008] A slider, which is slidably mounted on the fixed bracket;

[0009] An adjusting mechanism, the adjusting mechanism includes a driving element, a driven pulley, and a synchronous belt. The driving element and the driven pulley are both mounted on the fixed bracket. Two ends of the synchronous belt are respectively sleeved on the driving element and the driven pulley. The driving element and the driven pulley are both engaged with the synchronous belt. When the driving element moves, it drives the synchronous belt to move;

[0010] The slider is linked and connected to the synchronous belt. When the synchronous belt moves, it drives the slider to slide relative to the fixed bracket. When the slider has a sliding tendency under the action of an external force, the synchronous belt locks the slider to restrict its sliding relative to the fixed bracket.

[0011] Preferably, the synchronous belt includes at least one free section. One of the free sections is arranged along the sliding direction of the slider. The slider is fixedly provided with a linkage tooth part, and the linkage tooth part meshes with the tooth-shaped surface of one of the free sections. When the synchronous belt moves, one of the free sections drives the slider to slide through the linkage tooth part.

[0012] Preferably, the driving element is arranged to be able to cooperate with the synchronous belt through its own braking to restrict the sliding of the slider under the action of an external force.

[0013] Preferably, the slider has a nut seat. The linkage tooth part is arranged on the outer peripheral surface of the nut seat. A snap ring is sleeved on the nut seat, and a part of the snap ring is close to the meshing part of the free section and the linkage tooth part.

[0014] Preferably, the synchronous belt includes two free sections arranged in parallel and with opposite movement directions. The slider is provided with a rotatable locking gear. The locking gear is located between the two free sections. The two sides of the locking gear are respectively meshed with the tooth-shaped surfaces of the two free sections. The slider is fixedly connected to one of the free sections;

[0015] When the synchronous belt moves, the locking gear rotates and one of the free sections drives the slider to slide; when the slider has a sliding tendency under the action of an external force, the two free sections lock the slider through the locking gear.

[0016] Preferably, the driving element is arranged as a motor. The housing of the motor is arranged as a gear-shaped structure. The rotating shaft of the motor is fixedly connected to the fixed bracket, and the gear-shaped housing of the motor meshes with the synchronous belt.

[0017] Preferably, the fixed bracket is installed with a processor. The processor is electrically connected to the motor. The processor is arranged to be able to remember the position of the motor and control the motor to rotate to the remembered position.

[0018] Preferably, the fixed bracket is installed with a wireless communication module. The wireless communication module is electrically connected to the motor. The wireless communication module is arranged to be able to control the position of the motor according to an input signal.

[0019] Preferably, the wireless communication module is arranged as a Bluetooth chip or an NFC chip.

[0020] A vehicle, including the electric seat belt height adjuster described above, further includes a vehicle body, and a fixing bracket of the electric seat belt height adjuster is installed at the B-pillar position of the vehicle body.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. An electric-controlled seat belt height adjuster is provided, which realizes the position adjustment of the slider by adopting a belt drive structure, greatly shortens the time for adjusting the seat belt height, and improves the response speed and adjustment flexibility of the system.

[0023] 2. In the first embodiment, the free section of the synchronous belt refers to the part of the synchronous belt that is not restricted by other mechanical components, and it can move along the sliding direction of the slider; a linkage tooth part is fixedly arranged on the slider, and this linkage tooth part is usually located on the outer peripheral surface of the nut seat of the slider. The linkage tooth part meshes with the tooth-shaped surface of a free section. When the synchronous belt moves, the linkage tooth part can move along with the movement of the synchronous belt, and then drive the slider to slide along the fixing bracket.

[0024] 3. On the basis of the first embodiment, the driving element (i.e., the motor or the motor) has a braking function, that is, the stator and the rotor of the driving element cannot move relative to each other in the non-driving state (usually realized by an electromagnetic brake), and it can limit the movement of the synchronous belt through its own braking. Since the free section of the synchronous belt and the slider are linked, when the synchronous belt is locked, the slider is also locked, thereby avoiding the slider from moving under the action of an external force.

[0025] 4. The advantage of the second embodiment is that the movement logic during adjustment is clear and definite. When the driving element drives the synchronous belt, the two free sections move in opposite directions, thereby causing the locking gear to rotate and one free section to drive the slider to slide; its locking logic is also very ingenious. When the slider has a sliding tendency under the action of an external force, the locking gear can only apply forces in the same direction to the two free sections, making the synchronous belt unable to move, thereby realizing the self-locking of the adjustment mechanism.

[0026] 5. The motor adopts a special external shape design. The outer shell of the motor is designed into a gear-shaped structure, which enables the motor itself to be directly meshed with the synchronous belt as a driving wheel, and the rotating shaft of the motor is fixedly connected to the fixing bracket, which enables the outer shell (stator part) of the motor to rotate, eliminating the need for an additional synchronous pulley, making the overall structure very compact, reducing potential fault points in the transmission chain, and improving the reliability and durability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model.

[0028] Figure 2Schematic diagram when the linkage tooth part of the first embodiment of the present utility model meshes with the tooth-shaped surface of the free section.

[0029] Figure 3 Exploded view of the structure of the first embodiment of the present utility model.

[0030] Figure 4 Schematic diagram of the motion logic of the second embodiment of the present utility model.

[0031] Figure 5 Schematic diagram of the locking logic of the second embodiment of the present utility model.

[0032] In the figure, 100 is a fixed bracket; 110 is a processor; 200 is a slider; 210 is a linkage tooth part; 220 is a locking gear; 230 is a nut seat; 240 is a snap ring; 300 is a driving element; 400 is a driven pulley; 500 is a synchronous belt; 510 is a free section. Detailed implementation manners

[0033] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0034] As Figures 1-5 shown, an electric seat belt height adjuster includes: a fixed bracket 100; a slider 200, the slider 200 is slidably installed on the fixed bracket 100; an adjusting mechanism, the adjusting mechanism includes a driving element 300, a driven pulley 400 and a synchronous belt 500, the driving element 300 and the driven pulley 400 are both installed on the fixed bracket 100, both ends of the synchronous belt 500 are respectively sleeved on the driving element 300 and the driven pulley 400, the driving element 300 and the driven pulley 400 are both meshed with the synchronous belt 500, when the driving element 300 moves, it drives the synchronous belt 500 to move; the slider 200 is linked to the synchronous belt 500, when the synchronous belt 500 moves, it drives the slider 200 to slide relative to the fixed bracket 100, when the slider 200 has a sliding tendency under an external force, the synchronous belt 500 locks the slider 200 to limit its sliding relative to the fixed bracket 100.

[0035] In this design, the fixed bracket 100 is the foundation of the entire regulator, used to firmly mount the entire device on the B-pillar of the vehicle or other specified positions. The slider 200 bears the upper fixing point of the seat belt. One end of the seat belt is fixed to the slider 200, and the slider 200 can slide up and down along the track of the fixed bracket 100 to adjust the height of the seat belt. The adjusting mechanism is used to adjust the position of the slider 200. Among them, the driving element 300 is a motor or a motor, and the driving element 300 can provide power for the adjustment of the slider 200, and can control the driving element 300 through an external signal to further control the position of the slider 200. Both ends of the synchronous belt 500 are sleeved on the driving element 300 and the driven pulley 400 and are tensioned. When the driving element 300 rotates, it can drive the synchronous belt 500 to move, thereby moving the slider 200. When the slider 200 reaches the preset position, the driving element 300 stops, and the synchronous belt 500 is in a stationary state, and the position of the slider 200 is fixed. When an external force acts on the slider 200, the synchronous belt 500 or the driving element 300 is in a locked or stationary state, thereby restricting the movement of the slider 200.

[0036] It should be emphasized that the motion logic of this height regulator is as follows: it can only drive the slider 200 through the movement of the synchronous belt 500, and when the slider 200 has a tendency to move, it will be locked by the synchronous belt 500. Moreover, compared with the traditional manually adjusted height regulator, this design can achieve the purpose of electric control through the driving element 300, thereby enabling this height regulator to have the structural basis for remote wireless control or inductive control. That is, on the basis of this design, wireless communication technology or sensor technology can be introduced to realize the intelligent and remote control of the seat belt height, greatly improving the driving experience. In addition, compared with the lead screw structure, the structure of the transmission belt has a faster transmission speed and response speed, making the slider 200 more flexible during adjustment.

[0037] An electrically controlled seat belt height regulator is provided, which uses a transmission belt structure to realize the position adjustment of the slider 200, greatly shortening the time for adjusting the seat belt height and improving the response speed and adjustment flexibility of the system.

[0038] Embodiment 1:

[0039] As Figures 1-3 shown, the synchronous belt 500 includes at least one free segment 510, and one free segment 510 is arranged along the sliding direction of the slider 200. The slider 200 is fixedly provided with a linkage tooth portion 210, and the linkage tooth portion 210 meshes with the tooth-shaped surface of one free segment 510. When the synchronous belt 500 moves, one free segment 510 drives the slider 200 to slide through the linkage tooth portion 210.

[0040] In this embodiment, the linkage tooth part 210 is fixed to the slider 200, that is, the linkage tooth part 210 cannot rotate. The free section 510 of the synchronous belt 500 refers to the part of the synchronous belt 500 that is not restricted by other mechanical components, and it can move along the sliding direction of the slider 200. The linkage tooth part 210 is fixedly arranged on the slider 200, and this linkage tooth part 210 is usually located on the outer peripheral surface of the nut seat 230 of the slider 200. The linkage tooth part 210 meshes with the tooth-shaped surface of a free section 510. When the synchronous belt 500 moves, the linkage tooth part 210 can move following the movement of the synchronous belt 500, thereby driving the slider 200 to slide along the fixed bracket 100.

[0041] On the basis of Embodiment 1, the driving element 300 is arranged to be able to cooperate with the synchronous belt 500 through its own braking to limit the sliding of the slider 200 under the action of an external force. The driving element 300 (i.e., a motor or a motor) has a braking function, that is, the stator and the rotor of the driving element 300 cannot move relative to each other in the non-driving state (usually realized by an electromagnetic brake), and it can limit the movement of the synchronous belt 500 through its own braking. Since the free section 510 of the synchronous belt 500 and the slider 200 are linked, when the synchronous belt 500 is locked, the slider 200 is also locked, thereby avoiding the movement of the slider 200 under the action of an external force.

[0042] On the basis of Embodiment 1, the slider 200 has a nut seat 230, the linkage tooth part 210 is arranged on the outer peripheral surface of the nut seat 230, and a snap ring 240 is sleeved on the nut seat 230, and a part of the snap ring 240 is close to the meshing part of the free section 510 and the linkage tooth part 210.

[0043] The snap ring 240 is sleeved on the nut seat 230 and a part of the snap ring 240 is located outside the free section 510 to prevent the synchronous belt 500 from disengaging from the linkage tooth part 210.

[0044] Embodiment 2:

[0045] As Figures 4-5 shown, the synchronous belt 500 includes two free sections 510 arranged in parallel and moving in opposite directions. The slider 200 is equipped with a rotatable locking gear 220. The locking gear 220 is located between the two free sections 510. The two sides of the locking gear 220 are respectively meshed with the tooth-shaped surfaces of the two free sections 510. The slider 200 is fixedly connected to a free section 510. When the synchronous belt 500 moves, the locking gear 220 rotates and a free section 510 drives the slider 200 to slide. When the slider 200 has a sliding tendency under the action of an external force, the two free sections 510 lock the slider 200 through the locking gear 220.

[0046] In the second embodiment, the locking gear 220 is rotatably mounted on the slider 200. The two sides of the locking gear 220 are respectively engaged with the two free segments 510, and one of the free segments 510 is fixedly connected to the slider 200. When the synchronous belt 500 moves, the moving directions of the two free segments 510 are opposite, which causes the locking gear 220 to rotate. When the locking gear 220 rotates, the slider 200 is allowed to move along with one of the free segments 510. When the slider 200 is subjected to an external force and attempts to slide, the two free segments 510 of the synchronous belt 500 will interact with each other through the locking gear 220 to prevent the slider 200 from sliding.

[0047] For example, when the slider 200 has a tendency to slide downward, the locking gear 220 simultaneously exerts a downward acting force on the two free segments 510. When the two free segments 510 are subjected to acting forces in the same direction, the synchronous belt 500 cannot move, and further the slider 200 cannot slide when subjected to an external force. Only when the synchronous belt 500 is driven by the driving element 300 can the slider 200 slide.

[0048] The advantages of the second embodiment are that the motion logic during adjustment is clear and definite. When the driving element 300 drives the synchronous belt 500, the two free segments 510 move in opposite directions, which causes the locking gear 220 to rotate and one of the free segments 510 drives the slider 200 to slide. Its locking logic is also very ingenious. When the slider 200 has a tendency to slide under the action of an external force, the locking gear 220 can only exert acting forces in the same direction on the two free segments 510, making the synchronous belt 500 unable to move, thereby realizing the self-locking of the adjustment mechanism.

[0049] As Figures 1-5 shown, on the basis of the above-described embodiment, the driving element 300 is set as a motor. The outer shell of the motor is set as a gear-shaped structure. The rotating shaft of the motor is fixedly connected to the fixed bracket 100, and the gear-shaped outer shell of the motor is engaged with the synchronous belt 500.

[0050] The motor in this embodiment adopts a special shape design. The outer shell of the motor is designed as a gear-shaped structure, which enables the motor itself to be used as a driving wheel and directly engaged with the synchronous belt 500. And the rotating shaft of the motor is fixedly connected to the fixed bracket 100, which enables the outer shell (stator part) of the motor to rotate, eliminating the need for an additional synchronous pulley, making the overall structure very compact, reducing potential fault points in the transmission chain, and improving the reliability and durability of the system.

[0051] As Figures 1-3 shown, on the basis of the above-described embodiment, the fixed bracket 100 is provided with a processor 110. The processor 110 is electrically connected to the motor. The processor 110 is configured to be able to memorize the position of the motor and control the motor to rotate to the memorized position.

[0052] The processor 110 can record the user's preference settings, such as the seat position preferences of different drivers, which also applies to the adjustment of the seat belt height. The user can make the motor return to the previously recorded position through a simple operation, providing a personalized riding experience. In addition, the processor 110 can quickly control the motor to return to the previously memorized position, accelerating the adjustment process and improving the user experience. The processor 110 can cooperate with a wireless communication module to support remote control or adjustment through a smartphone application. The processor 110 can also be integrated with other vehicle systems, such as being linked with the seat position memory system to achieve an overall adjustment of the riding environment.

[0053] Based on the above-described embodiment, the fixed bracket 100 is installed with a wireless communication module, and the wireless communication module is electrically connected to the motor. The wireless communication module is configured to be able to control the motor position according to an input signal.

[0054] By controlling the motor through a wireless signal, smooth and precise position adjustment can be achieved, improving the riding comfort. The user does not need to manually adjust the seat belt height, reducing the operation steps. The wireless communication module can be integrated with other intelligent systems of the vehicle, such as the seat position memory system, to achieve a coordinated adjustment of the overall riding environment.

[0055] Preferably, the wireless communication module is set as a Bluetooth chip or an NFC chip.

[0056] Through wireless technologies such as Bluetooth or NFC, the user can remotely control the seat belt height regulator within a certain range through a smartphone or other device. Without physical contact or button operation, the user can easily adjust the seat belt height, improving the convenience of use. The wireless communication module can be integrated with a smartphone application, and the user can adjust the height of the seat belt through the application and even set multiple preset positions. In addition, the user can save their preference settings, such as saving multiple position presets in the application, for easy and quick adjustment to frequently used heights.

[0057] As Figures 1-5 shown, a vehicle includes an electric seat belt height regulator and also includes a vehicle body. The fixed bracket 100 of the electric seat belt height regulator is installed at the B-pillar position of the vehicle body.

[0058] The electric seat belt height regulator is integrated with other systems of the vehicle. For example, it can be operated through the vehicle's central control system. This integration also allows the regulator to work in coordination with other functions such as the seat position memory system, providing a more personalized riding experience. The electric regulator can quickly respond to the needs of passengers, enabling them to easily adjust the height of the seat belt to obtain the best comfort. Through the wireless communication module, passengers can even remotely control the height adjustment of the seat belt using intelligent devices such as smartphones.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0060] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0061] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited.

[0062] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. An electric seat belt height adjuster, characterized in that: include: A fixing bracket (100); A slider (200), the slider (200) being slidably mounted on the fixed bracket (100); An adjustment mechanism, the adjustment mechanism comprising a driving element (300), a driven pulley (400) and a synchronous belt (500), the driving element (300) and the driven pulley (400) are both mounted on the fixed bracket (100), two ends of the synchronous belt (500) are respectively sleeved on the driving element (300) and the driven pulley (400), the driving element (300) and the driven pulley (400) are both meshed with the synchronous belt (500), and when the driving element (300) moves, the synchronous belt (500) is driven to move; The slider (200) is linked to the synchronous belt (500); when the synchronous belt (500) moves, it drives the slider (200) to slide relative to the fixed bracket (100); when the slider (200) has a tendency to slide under the action of an external force, the synchronous belt (500) locks the slider (200) to limit its sliding relative to the fixed bracket (100).

2. An electric seat belt height adjuster as claimed in claim 1, characterized in that: The synchronous belt (500) comprises at least one free segment (510), wherein one of the free segments (510) is arranged along the sliding direction of the slider (200), and the slider (200) is fixedly provided with a linkage tooth portion (210), and the linkage tooth portion (210) meshes with a toothed surface of one of the free segments (510); when the synchronous belt (500) moves, one of the free segments (510) drives the slider (200) to slide via the linkage tooth portion (210).

3. An electric seat belt height adjuster as claimed in claim 2, characterized in that: The driving element (300) is configured to cooperate with the synchronous belt (500) through self-braking to limit the sliding movement of the slider (200) under the action of external force.

4. An electric seat belt height adjuster as claimed in claim 2, characterized in that: The slider (200) has a nut seat (230), the linkage tooth portion (210) is arranged on the outer peripheral surface of the nut seat (230), a retaining spring (240) is sleeved on the nut seat (230), and a portion of the retaining spring (240) is close to the meshing position between the free section (510) and the linkage tooth portion (210).

5. An electric seat belt height adjuster as claimed in claim 1, characterized in that: The synchronous belt (500) comprises two free segments (510) arranged in parallel and moving in opposite directions, the slider (200) is provided with a rotatable locking gear (220), the locking gear (220) is located between the two free segments (510), the two sides of the locking gear (220) are respectively meshed with the toothed surfaces of the two free segments (510), and the slider (200) is fixedly connected to one of the free segments (510); When the synchronous belt (500) moves, the locking gear (220) rotates and one of the free segments (510) drives the slider (200) to slide; when the slider (200) has a tendency to slide under the action of an external force, the two free segments (510) lock the slider (200) through the locking gear (220).

6. An electric seat belt height adjuster as claimed in claim 1, characterized in that: The driving element (300) is configured as a motor, the housing of the motor is configured as a gear-shaped structure, the rotating shaft of the motor is fixedly connected to the fixed bracket (100), and the gear-shaped housing of the motor is meshed with the synchronous belt (500).

7. An electric seat belt height adjuster as claimed in claim 6, characterized in that: The fixing bracket (100) is equipped with a processor (110), the processor (110) is electrically connected to the motor, and the processor (110) is configured to memorize the position of the motor and control the motor to rotate to the memorized position.

8. An electric seat belt height adjuster as claimed in claim 6 or 7, characterized in that: The fixing bracket (100) is installed with a wireless communication module, the wireless communication module is electrically connected to the motor, and the wireless communication module is configured to control the position of the motor according to an input signal.

9. An electric seat belt height adjuster as claimed in claim 8, characterized in that: The wireless communication module is configured as a Bluetooth chip or an NFC chip.

10. A vehicle, characterized in that: It comprises the electric seat belt height adjuster as claimed in any one of claims 1 to 9, and also comprises a vehicle body, wherein a fixing bracket (100) of the electric seat belt height adjuster is installed at the B-pillar position of the vehicle body.

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