Safety belt delivery mechanism and vehicle

Abstract

The utility model relates to the technical field of automobile parts, and particularly provides a safety belt delivery mechanism and a vehicle. The safety belt delivery mechanism comprises a shell, a delivery unit, a driving device and a transmission mechanism arranged between the driving device and the delivery unit. Wherein a safety belt guide ring located outside the shell is arranged at one end of the delivery unit, and the driving device drives the delivery unit to move in the shell in a guiding mode through the transmission mechanism, so that the delivery unit stretches out of or retracts into the shell, and the position of the safety belt guide ring is changed; a damping structure is arranged in the transmission mechanism and located on a force transmission path of the transmission mechanism. According to the safety belt delivery mechanism, when the driving force is abnormal, the damping structure can automatically play a role similar to a clutch, release strong impact force and reduce the damage of the impact force to the transmission mechanism, so that the durability of the safety belt delivery mechanism is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a safety belt delivery mechanism. BACKGROUND

[0002] The safety belt is an important safety configuration arranged on a seat or a vehicle body, which can provide safety restraint for human body and prevent serious injury caused by rapid movement of human body in the vehicle when the vehicle collides.

[0003] To improve the convenience of taking the safety belt, some vehicle models are equipped with a safety belt delivery mechanism.

[0004] However, due to the need to fully consider the lightweight of each component and the energy saving and weight reduction of the whole vehicle in vehicle design, the driving performance of the transmission structure in the safety belt delivery mechanism is limited. SUMMARY

[0005] Therefore, the utility model aims to provide a safety belt delivery mechanism which can alleviate the impact on the transmission mechanism between the driving device and the delivery unit when a large force is transmitted, reduce the damage of the impact force to the transmission mechanism, and improve the durability of the safety belt delivery mechanism.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A safety belt delivery mechanism includes a housing, a delivery unit arranged in the housing, a driving device, and a transmission mechanism arranged between the driving device and the delivery unit. One end of the delivery unit is provided with a safety belt guide ring outside the housing. The driving device drives the delivery unit to move in the housing through the transmission mechanism, so that the delivery unit extends or retracts from the housing to change the position of the safety belt guide ring. The transmission mechanism is provided with a damping structure, and the damping structure is located on the force transmission path of the transmission mechanism.

[0008] Further, the shell comprises a lower shell and an upper shell which are buckled together, and a guide groove is formed on the lower shell; the delivery unit comprises a guide seat which is slidably arranged in the guide groove, and a delivery arm which is connected to the guide seat; the transmission mechanism is in transmission connection with the delivery arm.

[0009] Further, a lower connecting seat is arranged on the side of the lower shell, and a corresponding upper connecting seat is arranged on the side of the upper shell; the lower connecting seat and the upper connecting seat are fixedly connected by fasteners.

[0010] Further, a window is arranged on the side wall of the shell, and the transmission mechanism is in transmission connection with the delivery arm through the window; and / or, a support is arranged on the shell, and the driving device is fixedly arranged on the support.

[0011] Further, the driving device comprises a motor which is fixedly arranged on the shell.

[0012] Further, the transmission mechanism comprises a transmission shaft and a gear which is arranged on the transmission shaft; the transmission shaft is driven to rotate by the driving device, and the damping structure is arranged between the transmission shaft and the gear; the delivery unit is provided with a gear tooth, and the gear is in meshing connection with the gear tooth so as to drive the delivery unit to move in a guided manner.

[0013] Further, the damping structure comprises a rotary damper which has a fixed end and a rotary end which is rotatably arranged on the fixed end; the fixed end is connected to the transmission shaft, and the gear is fixedly connected to the rotary end.

[0014] Further, the transmission shaft comprises a fixed shaft which is fixedly connected to the shell, and a rotating shaft which is sleeved on the fixed shaft; the rotating shaft is in transmission connection between the driving device and the fixed end, and the rotary end is mounted in a through shaft hole of the gear.

[0015] Further, a concave-convex structure which limits the rotation of the gear relative to the rotary end is arranged between the through shaft hole and the rotary end; and / or, the fixed end is fixedly connected to the rotating shaft by a lower connecting piece, and the rotary end is fixedly connected to the gear by an upper connecting piece.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The safety belt delivery mechanism of the utility model, through setting up the casing, provides the basis for the setting of the delivery unit and the driving device to move and install; the transmission mechanism is used to form the transmission path of the driving force between the driving device and the delivery unit, and the damping structure is arranged on the transmission path of the transmission mechanism; when the transmission force between the delivery unit and the driving device changes sharply, the damping structure can automatically play the role of the clutch, and the strong impact force is released; when the driving force is in the normal range, the damping structure can also meet the transmission needs of the transmission mechanism to the driving force. Therefore, the safety belt delivery mechanism can relieve the impact on the transmission mechanism when the transmission force between the driving device and the delivery unit changes sharply, reduce the damage of the impact force to the transmission mechanism, and improve the durability of the safety belt delivery mechanism.

[0018] In addition, the casing adopts a split structure, which is convenient for processing and construction, and the guide groove for guiding the movement of the delivery unit can be easily processed in the casing. The guide groove is processed on the lower casing, and the upper casing can be processed into a structure similar to the cover body. After the delivery unit is placed in the guide groove of the lower casing and the upper casing is buckled, the assembly operation of the casing and the delivery unit can be conveniently completed.

[0019] In addition, the transmission mechanism adopts the form of the transmission shaft driving the gear to rotate, cooperates with the gear teeth arranged on the delivery unit, forms a stable and reliable gear and rack transmission form, and thus converts the rotary motion into reciprocating guided movement, and the guided driving of the motor to the delivery unit is well realized. The damping structure is arranged between the transmission shaft and the gear. Under normal circumstances, the damping structure can completely transmit the rotation of the transmission shaft to the gear, and realize the delivery effect of the safety belt. Under abnormal circumstances such as violent pulling of the safety belt, strong impact force will be generated between the delivery unit and the transmission mechanism, and the damping structure can release the strong impact force by using its damping performance. The gear and rack and other transmission structures are avoided from being subjected to strong impact force, so that the transmission mechanism is prevented from being damaged, and the use durability of the transmission mechanism and the safety belt delivery mechanism is improved.

[0020] Another purpose of the utility model is to provide a vehicle, the vehicle is equipped with the safety belt delivery mechanism of the utility model. The vehicle of the utility model has the technical advantages of the above-mentioned safety belt delivery mechanism. ACCURACY OF DRAWINGS

[0021] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its description are used to explain the utility model, wherein the front and back, up and down and other orientation words involved only represent relative positional relationship, and all do not constitute improper limitation on the utility model. In the drawings:

[0022] Figure 1The utility model discloses a three -dimensional structure schematic diagram of safety belt delivery mechanism for the embodiment of the utility model;

[0023] Figure 2 The utility model discloses a front view of safety belt delivery mechanism for the embodiment of the utility model;

[0024] Figure 3 For Figure 2 The section view of the part shown as A-A in the middle;

[0025] Figure 4 The utility model discloses an explosion view of safety belt delivery mechanism for the embodiment of the utility model;

[0026] Figure 5 The utility model discloses a structure diagram of transmission mechanism for the embodiment of the utility model;

[0027] Figure 6 The utility model discloses a structure diagram of rotary damper for the embodiment of the utility model.

[0028] Explanation of reference signs:

[0029] 1, shell;10, lower shell;100, fixed support;101, via hole;102, mounting hole;103, lower connecting seat;11, upper shell;110, upper fixed frame;111, fixed hole;112, upper connecting seat;12, guide groove;120, port;13, window;

[0030] 2, delivery unit;20, guide seat;21, delivery arm;210, tooth;22, safety belt guide ring;3, driving device;

[0031] 4, transmission mechanism;40, speed reducer;400, shaft hole;41, gear;42, transmission shaft;420, fixed shaft;421, rotating shaft;43, rotary damper;430, fixed end;431, rotating end;432, boss;440, upper connecting piece;441, lower connecting piece. Specific implementation

[0032] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0033] In the description of the utility model, it should be declared that if the terms such as "upper, lower, left, right, front, rear, inner and outer" indicating orientation or positional relationship appear, it is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model, and therefore cannot be understood as the limitation of the utility model.

[0034] Further, in the description of the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connection", "connector" should be interpreted in a broad sense. For example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0035] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] Embodiment one

[0037] The present embodiment relates to a safety belt delivery mechanism, which can alleviate the impact borne by the transmission mechanism 4 between the driving device 3 and the delivery unit 2 when a large force is transmitted, reduce the damage of the impact force to the transmission mechanism 4, and thus improve the durability of the safety belt delivery mechanism. An exemplary structure of the safety belt delivery mechanism is shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 .

[0038] Overall, the safety belt delivery mechanism includes a housing 1, a delivery unit 2 provided in the housing 1, a driving device 3, and a transmission mechanism 4 provided between the driving device 3 and the delivery unit 2. One end of the delivery unit 2 is provided with a safety belt guide ring 22 located outside the housing 1, the driving device 3 drives the delivery unit 2 to move in the housing 1 through the transmission mechanism 4, so that the delivery unit 2 extends or retracts from the housing 1 to change the position of the safety belt guide ring 22; the transmission mechanism 4 is provided with a damping structure, and the damping structure is located on the force transmission path of the transmission mechanism 4.

[0039] It should be noted that based on the overall design idea described above, the technical scheme of the present application can adopt various different specific implementation structures, forms or configuration sequences. For example, the driving device 3 described above can adopt various different specific driving forms such as pneumatic and electric driving; the specific arrangement sequence, assembly method, etc. of the housing 1, the delivery unit 2, the driving device 3 and the transmission mechanism 4, etc. can also be flexibly adjusted. For the parts required for the overall scheme implementation but not involved in the above overall arrangement, reasonable and flexible design can be made by referring to the mature setting means in the art, the actual situation during implementation, etc. The specific implementation scheme described below in the present embodiment is only one of the more optimal schemes formed by various combinations and changes of the above, and in actual implementation, the skilled in the art can make flexible adjustment and improvement in combination with the actual situation. Obviously, the various combinations of the above specific forms and the changes thereof can form many schemes, and the specific implementation scheme of the present embodiment is within the protection scope of the present application.

[0040] Obviously, the safety belt delivery mechanism, the shell 1 is to provide the installation basis for the whole mechanism; shell 1 in addition to provide the space condition for the delivery unit 2 guided movement, also realize the whole mechanism on the vehicle installation fixed. As to the installation position of shell 1 on the vehicle, can be set flexibly according to the position of the personnel in the car and the installation condition in the car, in order to realize the delivery unit 2 in the shell 1 guided movement, can be delivered to the guiding seat 20 located at the end of the delivery unit 2 to the position of the personnel for taking as the principle setting can. In this way, the personnel need not to do side, tilt and other actions, can be conveniently taken to the guiding seat 20 on the safety belt.

[0041] For the specific structure of shell 1, of course, there are many different structure scheme can be chosen. In this embodiment, as shown in Figure 4 The shell 1 includes the lower shell 10 and the upper shell 11, and the lower shell 10 is formed with guiding groove 12; the delivery unit 2 includes guiding seat 20 slidingly arranged in the guiding groove 12, and the delivery arm 21 connected to the guiding seat 20; the transmission mechanism 4 is drivingly connected with the delivery arm 21. Preferably, the guiding seat 20 can be arranged at one end of the delivery arm 21, and the safety belt guiding ring 22 is fixed to the side of the guiding seat 20 opposite to the delivery arm 21. In this way, the guiding seat 20 is guided to be arranged in the guiding groove 12 formed on the lower shell 10, and moves under the push of the delivery arm 21; the shell 1 is provided with a port 120 penetrating through the guiding groove 12 at one end, and the guiding seat 20 can partially extend out of the shell 1 through the port 120, so as to change the position with the safety belt guiding ring 22, in order to deliver the safety belt on the safety belt guiding ring 22 to the position convenient for taking.

[0042] The shell 1 adopts split structure, which is convenient for processing and construction, and is also easier to process the guiding groove 12 for guiding movement of the delivery unit 2 in the shell 1. The guiding groove 12 is processed on the lower shell 10, and the upper shell 11 can be processed into a structure similar to the cover, and after the delivery unit 2 is put into the guiding groove 12 of the lower shell 10, the upper shell 11 is buckled, the assembly operation of the shell 1 and the delivery unit 2 can be conveniently completed.

[0043] Based on the above setting, the side of the lower shell 10 is provided with a lower connecting seat 103, and the side of the upper shell 11 is provided with an upper connecting seat 112 corresponding to the lower connecting seat 103; the corresponding lower connecting seat 103 and upper connecting seat 112 are fixedly connected by fasteners, so that the assembly of the lower shell 10 and the upper shell 11 can be realized. By respectively providing the upper connecting seat 112 and the lower connecting seat 103 on the side walls of the upper shell 11 and the lower shell 10, providing a through hole on the upper connecting seat 112 and a corresponding threaded hole on the lower connecting seat 103, and using screws and other fasteners to fixedly connect the upper connecting seat 112 and the lower connecting seat 103, the assembly operation of the lower shell 10 and the upper shell 11 can be completed.

[0044] In addition, as shown in Figure 4 The side wall of the shell 1 is provided with a window 13, and the transmission mechanism 4 is connected in transmission with the delivery unit 2 through the window 13; and a support can also be provided on the shell 1, and the driving device 3, the transmission mechanism 4 and the like can be installed on the support. By providing the window 13 on the side wall of the shell 1, a good force transmission channel is provided for the delivery unit 2 and the transmission mechanism 4 when the delivery unit 2 is hidden in the shell 1. By using the support provided on the shell 1, a reliable installation basis is provided for the fixed installation of the driving device 3.

[0045] Specifically, in the case of adopting the split structure of the lower shell 10 and the upper shell 11 for the shell 1, the guide groove 12 is provided on the lower shell 10, and the window 13 is provided on the side wall of the lower shell 10. Correspondingly, a fixed support 100 can be provided on the lower shell 10, and an upper fixed support 110 can be provided on the upper shell 11; at the same time, a through hole 101 for passing through the transmission shaft 42 described below and a mounting hole 102 for mounting the driving device 3 are provided on the upper fixed support 110; the top end of the transmission shaft 42 can be rotatably provided on the upper fixed support 110, and a fixing hole 111 is provided on the upper fixed support 110 for mounting the transmission shaft 42 on the upper fixed support 110.

[0046] As for the driving device 3, of course, there are many different driving modes to choose from. In this embodiment, the driving device 3 includes a motor fixedly installed on the shell 1; specifically, the output shaft of the motor is fixedly provided with a speed reducer 40 for reducing the output rotation speed of the motor. The speed reducer 40 is fixed to the fixed support 100 described above, and an axle hole 400 is provided on the output gear of the speed reducer 40, and the transmission shaft 42 in the transmission mechanism 4 is passed through the axle hole 400; when the motor rotates and outputs, the transmission shaft 42 will rotate with the output gear of the speed reducer 40 through the speed reduction of the speed reducer 40, and then the driving force will be transmitted to the delivery unit 2 through the transmission mechanism 4.

[0047] The driving device 3 adopts a motor, which not only has good driving performance, but also is convenient to control the forward and reverse rotation to realize the forward and backward movement of the delivery unit 2 in the guide groove 12, so that the guide seat 20 is smoothly extended from the shell 1 or retracted into the shell 1, and the safety belt can also be moved to a position convenient for the person to take under the bearing of the guide seat 20.

[0048] For the transmission mechanism 4, different transmission forms such as gears, racks, screws, etc. can be adopted. In the embodiment, as shown in Figure 4 and Figure 5 shown, the transmission mechanism 4 includes a transmission shaft 42 and a gear 41 arranged on the transmission shaft 42; the transmission shaft 42 is driven to rotate by the driving device 3, and the damping structure is arranged between the transmission shaft 42 and the gear 41. At the same time, the delivery arm 21 of the delivery unit 2 is provided with a tooth 210, and the gear 41 is engaged with the tooth 210, so that the rotation of the gear 41 can drive the delivery unit 2 to move in the guide groove 12.

[0049] The transmission mechanism 4 adopts the form of driving the gear 41 to rotate by the transmission shaft 42, cooperates with the tooth 210 arranged on the delivery unit 2, forms a stable and reliable gear and rack transmission form, and converts the rotary motion into reciprocating guide movement, so as to well realize the guide driving of the motor to the delivery unit 2. The damping structure is arranged between the transmission shaft 42 and the gear 41. Under normal circumstances, the damping structure can completely transmit the rotation of the transmission shaft 42 to the gear 41, and realize the delivery effect of the safety belt. Under abnormal circumstances such as violent pulling of the safety belt, due to the strong impact force generated between the delivery unit 2 and the transmission mechanism 4, the damping structure can release the strong impact force by using its damping performance. Avoid the gear and rack transmission structure from being subjected to a huge impact force, so as to ensure that the transmission mechanism 4 is not damaged, and further improve the use durability of the transmission mechanism 4 and the safety belt delivery mechanism.

[0050] Based on the above setting, preferably, as shown in Figure 5 and Figure 6 shown, the damping structure of the embodiment includes a rotary damper 43. The rotary damper 43 has a fixed end 430 and a rotating end 431 rotatably arranged on the fixed end 430. The fixed end 430 of the rotary damper 43 is arranged on the transmission shaft 42, and the gear 41 is mounted on the rotating end 431.

[0051] The damping structure is in the form of a rotary damper 43, which is adapted to the mounting condition between the gear 41 and the transmission shaft 42, and can well realize the force transmission between the gear 41 and the transmission shaft 42 with damping effect. The fixed end 430 of the rotary damper 43 can be coaxially arranged on the transmission shaft 42, the rotary end 431 of the rotary damper 43 is fixedly connected with the gear 41, and the damping transmission structure between the fixed end 430 and the rotary end 431 is well arranged on the force transmission path of the transmission mechanism 4.

[0052] In order to facilitate the installation and configuration of the rotary damper 43, the transmission shaft 42 of the embodiment is preferably in a split form. Specifically, the transmission shaft 42 of the embodiment includes a fixed shaft 420 fixedly connected to the housing 1, and a rotating shaft 421 sleeved on the fixed shaft 420. Among them, the rotating shaft 421 is drivingly connected between the driving device 3 and the fixed end 430, and the rotary end 431 is mounted in the shaft hole of the gear 41. Specifically, the fixed shaft 420 can be fixed between the upper fixed frame 110 and the fixed support 100 on the lower housing 10. The rotating shaft 421 is sleeved on the fixed shaft 420, the bottom end of the rotating shaft 421 is inserted into the shaft hole 400 of the output gear of the speed reducer 40, so that the rotating shaft 421 rotates under the driving of the driving device 3, and the rotary damper 43 and the gear 41 are arranged on the top of the rotating shaft 421, thereby forming a complete transmission structure. The transmission shaft 42 adopts a split structure, which is convenient for processing and construction, and the installation and arrangement of each shaft body, so that the assembly of the rotary damper 43, the gear 41 and the transmission shaft 42 is more convenient.

[0053] Based on the above setting, a concave-convex structure for limiting the rotation of the gear 41 relative to the rotary end 431 can be arranged between the shaft hole of the gear 41 and the rotary end 431; of course, the two can also adopt an interference fit. The fixed end 430 can be fixedly connected with the rotating shaft 421 by welding or the like, or can be fixedly connected with the rotating shaft 421 by a connecting piece.

[0054] However, the following specific setting mode is preferably adopted. In specific implementation, a groove can be arranged on the side wall of the shaft hole, and a boss 432 is correspondingly arranged on the peripheral surface of the rotary end 431, the boss 432 is embedded into the groove, so that the gear 41 is reliably fixed on the rotary end 431, and the synchronous rotation of the gear 41 with the rotary end 431 is guaranteed. By arranging the convex-concave structure between the shaft hole and the rotary end 431, the synchronous rotation effect of the gear 41 and the rotary damper 43 can be guaranteed.

[0055] The fixed end 430 and the rotating end 431 of the rotary damper 43 are fixedly connected with the rotating shaft 421 and the gear 41 through the lower connecting piece 441 and the upper connecting piece 440 respectively. Specifically, the connecting piece for connecting the fixed end 430 and the rotating shaft 42 is the lower connecting piece 441, and the upper connecting piece 440 is used to achieve the fixed connection between the gear 41 and the rotating end 431, so as to prevent the relative up-and-down movement between the gear 41 and the rotating end 431 and prevent the gear 41 from sliding off the rotating end 431. The use of the connecting pieces to achieve the connection and installation of the fixed end 430 with the rotating shaft 421 and the fixed connection of the gear 41 and the rotating end 431 can make the connection and installation of the rotary damper 43 with the rotating shaft 42 more convenient.

[0056] Of course, there are many choices for the two connecting pieces, such as clamps and buckles. In the embodiment, the two connecting pieces are injection molded between the two objects to be fixedly connected, so that the structure is more compact and the fixed connection between the fixed end 430 and the rotating shaft 42 and between the gear 41 and the rotating end 431 is reliable.

[0057] In summary, the safety belt delivery mechanism of the embodiment provides a basis for the guided movement and installation of the delivery unit 2 and the driving device 3 by providing the housing 1. The transmission mechanism 4 forms a driving force transmission path between the driving device 3 and the delivery unit 2, and the damping structure is provided on the transmission path of the transmission mechanism 4. When there is a violent transmission force change between the delivery unit 2 and the driving device 3, the damping structure can automatically play a role similar to a clutch to release the strong impact force. When the driving force is within a normal range, the damping structure can also meet the transmission needs of the transmission mechanism 4 for the driving force. Therefore, the safety belt delivery mechanism of the embodiment can relieve the impact on the transmission mechanism 4 when the driving device 3 and the delivery unit 2 have a violent force transmission, reduce the damage of the impact force to the transmission mechanism 4, and thus improve the durability of the safety belt delivery mechanism.

[0058] Embodiment Two

[0059] The embodiment relates to a vehicle, and the vehicle is provided with the safety belt delivery mechanism provided in embodiment one.

[0060] In the specific setting, the safety belt delivery mechanism is installed at a suitable position in the vehicle interior, and the safety belt for the people in the vehicle is detachably arranged on the guide seat 20 of the delivery unit 2. When the people need to use the safety belt, the driving device 3 starts to operate by receiving an external input signal, and drives the delivery unit 2 through the transmission mechanism 4, so that the guide seat 20 of the delivery unit 2 is extended from the housing 1. The gear 41 in the transmission mechanism 4 drives the delivery arm 21 to move along a preset track in the guide groove 12, so that the safety belt can be delivered to a position convenient for the people to take.

[0061] Due to the damping structure arranged in the transmission mechanism 4, under normal use conditions, the damping structure plays a role of connecting the gear 41 and the transmission shaft 42, so that the gear 41 can move synchronously with the transmission shaft 42 to drive the telescopic movement of the delivery unit 2. In abnormal conditions, when the safety belt or the delivery unit 2 is subjected to an abnormal strong external force impact, the transmission force value of the transmission mechanism 4 suddenly increases, and when the force is transmitted to the damping structure, due to the damping effect of the damping structure, the excessive impact force can be unloaded, thereby protecting the transmission mechanism 4 and the related structures on the side of the driving device 3 from impact damage, and problems such as jamming of the transmission mechanism 4, damage of the gear 41 or damage of the motor do not occur.

[0062] The safety belt delivery mechanism of the utility model not only realizes automatic delivery of the safety belt, is convenient for use to take, and the structure is simple and compact, and is easy to arrange in the car. When people are on board, the safety belt delivery mechanism can automatically deliver the safety belt to the range that people can see and easily take, maximally facilitates people to take and wear the safety belt, and provides the use convenience of the vehicle. The gear structure with bidirectional damping effect is arranged in the transmission mechanism 4, protects various transmission structures inside the transmission mechanism 4 and the driving device 3, can avoid structure damage caused by external force impact, and improves the use durability of the safety belt delivery mechanism.

[0063] The above is only the preferred embodiment of the utility model, and the detailed configuration explanation, specific structure setting form example or assembly connection mode expression are all for the need of full disclosure, so that the person skilled in the art can better implement the utility model, and are not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A safety belt delivery mechanism, characterized in that: comprising a housing (1), a delivery unit (2) arranged in the housing (1), a driving device (3), and a transmission mechanism (4) arranged between the driving device (3) and the delivery unit (2); one end of the delivery unit (2) is provided with a safety belt guide ring (22) outside the housing (1), the driving device (3) drives the delivery unit (2) to move in the housing (1) through the transmission mechanism (4), so that the delivery unit (2) extends or retracts from the housing (1) to change the position of the safety belt guide ring (22); the transmission mechanism (4) is provided with a damping structure, and the damping structure is located on the force transmission path of the transmission mechanism (4).

2. The safety belt delivery mechanism according to claim 1, characterized in that: the housing (1) comprises a lower housing (10) and an upper housing (11) that are buckled together, and a guide groove (12) is formed on the lower housing (10); the delivery unit (2) comprises a guide seat (20) slidingly arranged in the guide groove (12), and a delivery arm (21) connected to the guide seat (20); the transmission mechanism (4) is in transmission connection with the delivery arm (21).

3. The safety belt delivery mechanism according to claim 2, characterized in that: a lower connecting seat (103) is arranged on the side of the lower housing (10), and a corresponding upper connecting seat (112) is arranged on the side of the upper housing (11); the corresponding lower connecting seat (103) and the upper connecting seat (112) are fixedly connected by fasteners.

4. The safety belt delivery mechanism according to claim 2, characterized in that: a window (13) is arranged on the side wall of the housing (1), and the transmission mechanism (4) is in transmission connection with the delivery arm (21) through the window (13); and / or a bracket is arranged on the housing (1), and the driving device (3) is fixedly arranged on the bracket.

5. The safety belt delivery mechanism according to claim 1, characterized in that: the driving device (3) comprises a motor fixedly arranged on the housing (1).

6. The safety belt delivery mechanism according to any one of claims 1 to 5, characterized in that: the transmission mechanism (4) comprises a transmission shaft (42) and a gear (41) arranged on the transmission shaft (42); the transmission shaft (42) is driven to rotate by the driving device (3), and the damping structure is arranged between the transmission shaft (42) and the gear (41); the delivery unit (2) is provided with a tooth (210), and the gear (41) is in meshing connection with the tooth (210) to drive the delivery unit (2) to move in a guided manner.

7. The safety belt delivery mechanism according to claim 6, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ The damping structure comprises a rotary damper (43) having a fixed end (430) and a rotary end (431) rotatably arranged on the fixed end (430); the fixed end (430) is connected to the transmission shaft (42), and the gear (41) is fixedly connected to the rotary end (431).

8. The safety belt delivery mechanism according to claim 7, characterized in that: The transmission shaft (42) comprises a fixed shaft (420) fixedly connected to the housing (1) and a rotating shaft (421) sleeved on the fixed shaft (420); The rotating shaft (421) is drivingly connected between the driving device (3) and the fixed end (430), and the rotary end (431) is mounted in a through shaft hole of the gear (41).

9. The safety belt delivery mechanism according to claim 8, characterized in that: A concave-convex structure is arranged between the through shaft hole and the rotary end (431) to limit the rotation of the gear (41) relative to the rotary end (431); And / or, the fixed end (430) is fixedly connected to the rotating shaft (421) through a lower connecting piece (441), and the rotary end (431) is fixedly connected to the gear (41) through an upper connecting piece (440).

10. A vehicle, characterized in that: The vehicle is provided with the safety belt delivery mechanism according to any one of claims 1 to 9.

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