Vehicle-mounted camera module with ratchet angle adjustment mechanism

Abstract

The present invention discloses a vehicle-mounted camera module with a ratchet angle adjustment mechanism, comprising a housing with an assembly space, a camera module, a ratchet angle adjustment mechanism and a control module, wherein the ratchet angle adjustment mechanism comprises a first angle adjustment component and a second angle adjustment component, the camera module is arranged in the assembly space of the housing, the first angle adjustment component is used to realize the function of rotating the left side of the camera module relative to the housing, the second angle adjustment component comprises a second adjustment seat, a rotating shaft, a rotating bracket, a gear and a ratchet assembly, and the rotation function of the right side of the vehicle-mounted camera module is realized by the rotating shaft, the rotating shaft connects the second adjustment seat and the rotating bracket, and can be operated to adjust the lens angle, the gear is meshed with the two-way ratchet of the ratchet assembly, and the vehicle-mounted camera module can be locked, and the control module is used to generate driving control information or warning information. The present invention has an angle adjustment function and can be used for vehicles with windshields of different angles, which greatly reduces the product development cycle and cost.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle-mounted camera module accessories with a ratchet angle adjustment mechanism, and in particular relates to a vehicle-mounted camera module with a ratchet angle adjustment mechanism. Background Art

[0002] With the promulgation of the People's Republic of China Transportation Industry Standard JT / T 1242-2019 Performance Requirements and Test Procedures for Automatic Emergency Braking Systems for Commercial Vehicles, commercial vehicles have introduced automatic emergency braking systems, and more and more front-view camera modules have been used in the automotive original equipment market. However, each automaker has a variety of corresponding models, and the corresponding car windshield angles for each model are inconsistent.

[0003] Therefore, the existing vehicle camera module with ratchet angle adjustment mechanism needs to correspond to the front windshield of each car model, and the corresponding style of vehicle camera module with ratchet angle adjustment mechanism is set accordingly. When the glass angle changes, the camera module cannot be shared, and the glass angle needs to be re-matched and new structural parts need to be developed before it can continue to be used. Not only is the development cycle long, but the cost is also high. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a vehicle-mounted camera module with a ratchet angle adjustment mechanism, which can be shared by vehicle models with windshields at different angles, greatly reducing the product development cycle and production costs.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A vehicle-mounted camera module with a ratchet angle adjustment mechanism, comprising a shell with an assembly space, a camera module, a ratchet angle adjustment mechanism and a control module, the ratchet angle adjustment mechanism comprising a first angle adjustment component and a second angle adjustment component, the camera module is arranged in the assembly space of the shell, the first angle adjustment component is installed between the left side of the camera module and the left inner wall of the shell, for realizing the function of rotating the left side of the camera module relative to the shell; the second angle adjustment component comprises a second adjustment seat, a rotating shaft, a rotating bracket, a gear and a ratchet assembly, the ratchet assembly comprises a bidirectional ratchet, a ratchet box, a ratchet lever and a reset spring, the inner side of the second adjustment seat is detachably fixed to the right side of the mounting body, the rotating bracket is arranged on the right outer wall of the shell, the rotating shaft is rotatably installed in the shaft sleeve hole formed on the right side wall of the shell, and the rotating The shaft is connected between the rotating bracket and the second adjustment seat; the gear is installed between the rotating shaft and the second adjustment seat, the ratchet box is installed on the right inner wall of the shell, the two-way ratchet is slidably installed in the ratchet box, the composite spring is installed in the ratchet box, and the reset spring can drive the two-way ratchet to pass through one side of the ratchet box, so that the two ratchet teeth of the two-way ratchet are engaged with the gear, thereby braking the gear; one end of the ratchet lever is fixedly connected to the two-way ratchet, and the other end of the ratchet lever passes through the avoidance waist hole on the shell, and moving the ratchet lever can drive the two-way ratchet to unlock the brake on the gear and compress the reset spring to store energy; the control module is arranged in the shell and is electrically connected to the camera module, and is used to generate driving control information or warning information based on the image captured by the camera module.

[0007] As a further improvement of the present invention, the shell includes a rear shell and a front cover, and the front cover and the rear shell are assembled to form the assembly space. The middle part of the outer side of the front cover is concave to form an air-avoiding cavity, and the periphery of the air-avoiding cavity forms an annular mounting plane. A lens hole is formed at the bottom of the air-avoiding cavity, and the lens of the camera mold extends into the air-avoiding cavity through the lens hole.

[0008] As a further improvement of the present invention, the first angle adjustment assembly includes a first adjustment seat, a fastening cover and a compression spring, a card slot is formed on the left inner wall of the rear shell body, a shaft platform hole is formed on one side of the card slot, the inner side of the first adjustment seat is detachably fixed to the left side of the mounting body of the camera module, a shaft platform is formed on the outer side of the first adjustment seat, a storage groove is formed axially of the shaft platform, the fastening cover is arranged in the card slot, the shaft platform is rotatably passed through the shaft platform hole, the compression spring is installed in the storage groove in a compressed state, and one end of the compression spring is placed against the inner side of the fastening cover.

[0009] As a further improvement of the present invention, the rotating bracket is formed with an arc groove with the rotating axis as the center or a plurality of positioning holes arranged in an arc with the rotating axis as the center, and the rotating bracket is locked to the right outer wall of the shell by a first fastener passing through the arc groove or the positioning hole.

[0010] As a further improvement of the present invention, the ratchet box includes a ratchet base and a ratchet cover plate, a ratchet groove and a spring groove are formed on the ratchet base, at least one guide column is formed in the ratchet groove, a guide waist hole corresponding to the guide column is formed on the bidirectional ratchet, the bidirectional ratchet is arranged in the ratchet groove, and the guide column is passed through the guide waist hole, the inner side of the ratchet groove is connected to the spring groove, the reset spring is positioned and accommodated in the spring groove, and one end of the reset spring is placed against the inner side of the bidirectional ratchet.

[0011] As a further improvement of the present invention, the ratchet assembly also includes a mounting bracket, which is arranged on the right inner wall of the shell, and the ratchet base is placed on the mounting bracket and locked to the mounting bracket by at least two second fasteners.

[0012] As a further improvement of the present invention, the rotating shaft consists of a first half-shaft and a second half-shaft, the first half-shaft is fixedly connected or integrally formed with the second adjustment seat, the second half-shaft is fixedly connected or integrally formed with the rotating bracket, and the first half-shaft and the second half-shaft are detachably fixedly connected.

[0013] As a further improvement of the present invention, a protrusion is formed on the right outer wall of the rear shell, and a scale line for marking the rotation angle with the rotation axis as the center is engraved on the protrusion.

[0014] As a further improvement of the present invention, the control module includes a PCB circuit board integrated with an image processor and a control chip, and an FPC circuit board for electrically connecting the PCB circuit board and the camera module.

[0015] As a further improvement of the present invention, the camera module is arranged near the top of the assembly space, the PCB circuit board is arranged near the bottom of the assembly space, a communication interface is also integrated on the PCB circuit board, and a communication window for avoiding the connector is formed at the bottom of the rear shell body.

[0016] The beneficial effects of the present invention are as follows: the present invention proposes a vehicle-mounted camera module with a ratchet angle adjustment mechanism, which is mainly composed of a shell with an assembly space, a camera module, a ratchet angle adjustment mechanism and a control module. By setting a first angle adjustment component between the left side of the mounting body of the camera module and the left inner wall of the shell, and setting a second angle adjustment component between the right side of the mounting body of the camera module and the right inner wall of the shell, the angle adjustment and positioning function of the camera module relative to the shell is realized; the vehicle-mounted camera module can be arbitrarily matched with vehicle models with different windshield angles, thereby greatly reducing the product development cycle and production costs. Among them, the first angle adjustment component is rotatably mounted on the left inner wall of the shell with the help of the first adjustment seat, realizing the rotation function of the left side of the mounting body of the vehicle-mounted camera module, and the second angle adjustment component is rotatably mounted in the right shaft sleeve hole of the shell with the help of the rotating shaft, realizing the rotation function of the right side of the mounting body of the vehicle-mounted camera module, and the rotating shaft is also used to connect the second adjustment seat and the rotating bracket inside and outside the shell, and the rotating bracket is used to operate the angle adjustment, the gear and the two-way ratchet of the ratchet assembly are engaged, and are used to realize the function of locking the vehicle-mounted camera module after the angle is adjusted, the reset spring is used to provide the driving force for locking, and the ratchet lever is used to manually operate the unlocking gear and the two-way ratchet. In this way, the locking function after the angle adjustment can be realized to prevent the lens from rotating unnecessarily due to vibration and other reasons during the use of the product. That is, after the product is assembled, the two-way ratchet wheel is against the gear wheel under the action of the spring force of the reset spring. Since the gear wheel is fixedly connected to the vehicle-mounted camera module through the second adjustment seat, the lens cannot rotate. When the angle needs to be adjusted, the ratchet lever can be turned to drive the two-way ratchet wheel back, so that the two-way ratchet wheel is separated from the gear wheel, and the two-way ratchet wheel is unlocked to brake the gear wheel. At this time, the lens angle can be adjusted by adjusting the rotating bracket. Then the ratchet lever is released, and the two-way ratchet wheel is meshed with the gear wheel again under the action of the spring force, so that the product is locked and cannot rotate. The control module is arranged in the housing, and the image collected by the camera module can be used to generate driving control information or warning information to output to the vehicle control system, thereby realizing prompting the user according to the driving control information, or directly controlling the driving of the vehicle according to the driving control information. Therefore, compared with the prior art, the vehicle-mounted camera module of the present invention realizes the angle adjustment function of the lens, and can ensure that the locking is firm after the angle adjustment, so that the vehicle-mounted camera module can be matched with vehicles with windshields of different angles, which greatly reduces the product development cycle and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a vehicle-mounted camera module with a ratchet angle adjustment mechanism according to the present invention;

[0018] Figure 2 This is a three-dimensional diagram of the vehicle-mounted camera module with a ratchet angle adjustment mechanism of the present invention after the front cover is removed;

[0019] Figure 3 It is an exploded view of the vehicle-mounted camera module with a ratchet angle adjustment mechanism of the present invention;

[0020] Figure 4 It is a partial cross-sectional view of the left side of the vehicle-mounted camera module with a ratchet angle adjustment mechanism of the present invention;

[0021] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0022] Figure 6 It is a partial cross-sectional view of the right side of the vehicle-mounted camera module with a ratchet angle adjustment mechanism of the present invention;

[0023] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0024] Figure 8 It is an assembly diagram of the second angle adjustment component of the present invention on the right inner wall of the housing;

[0025] Fig. 9 It is an assembly diagram of the first angle adjustment component, the second angle adjustment component and the vehicle-mounted camera module in the present invention;

[0026] Fig.10 is an exploded schematic diagram of the first angle adjustment component in the present invention;

[0027] Fig.11 is an exploded schematic diagram of the second angle adjustment assembly of the present invention (excluding the ratchet box);

[0028] Fig.12 It is a schematic diagram of the structure of the gear and the ratchet assembly in the present invention in a separated state;

[0029] Fig.13 It is an assembly diagram of the ratchet box, the bidirectional ratchet and the return spring in the present invention;

[0030] Combined with the attached drawings, the following description is given:

[0031] 1-housing, 11-rear housing, 111-card slot, 1111-pillar platform hole, 1112-stop rib position, 112-sleeve hole, 113-protrusion, 114-scale line, 115-communication window, 116-avoiding waist hole, 12-front cover, 121-avoiding cavity, 1211-lens hole, 122-installation plane, 2-camera module, 21-lens, 22-installation body, 221-first installation hole, 222-first Two mounting holes, 3-ratchet angle adjustment mechanism, 31-first angle adjustment assembly, 311-first adjustment seat, 3111-first positioning pin, 3112-first positioning block, 3113-pillar platform, 3114-storage groove, 312-fastening cover, 3121-anti-rotation rib, 313-compression spring, 32-second angle adjustment assembly, 321-second adjustment seat, 3211-second positioning pin, 3212-second positioning block, 322-rotating shaft, 3221-first half shaft, 32211-groove, 3222-second half shaft, 32221-bump, 323-rotating bracket, 3231-arc slide groove, 324-gear, 325-ratchet assembly, 3251-bidirectional ratchet, 32511-ratchet teeth, 32512-guide waist hole, 3252-ratchet box, 32521-ratchet base, 325211-ratchet slide groove, 325 212-spring slot, 325213-guide column, 32522-ratchet cover plate, 3253-ratchet lever, 3254-reset spring, 3255-mounting bracket, 32551-fence plate, 32552-stud, 33-first fastener, 34-second fastener, 35-third fastener, 4-control module, 41-control chip, 42-PCB circuit board, 43-FPC circuit board, 44-communication interface. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12, is a vehicle-mounted camera module with a ratchet angle adjustment mechanism described in the present invention, comprising a shell 1 with an assembly space, a camera module 2, a ratchet angle adjustment mechanism 3 and a control module 4, the ratchet angle adjustment mechanism comprising a first angle adjustment component 31 and a second angle adjustment component 32, the camera module is arranged in the assembly space of the shell, the first angle adjustment component is installed between the left side of the camera module and the left inner wall of the shell, and is used to realize the function of rotating the left side of the camera module relative to the shell; the second angle adjustment component comprises a second adjustment seat 321, a rotating shaft 322, a rotating bracket 323, a gear 324 and a ratchet assembly 325, the ratchet assembly comprises a bidirectional ratchet 3251, a ratchet box 3252, a ratchet lever 3253 and a reset spring 3254, the inner side of the second adjustment seat is detachably fixed to the right side of the mounting body, the rotating bracket is arranged on the right outer wall of the shell, and the rotating shaft is rotatably installed on the shell The shaft sleeve hole 112 is formed on the right side wall of the housing, and the rotating shaft is connected between the rotating bracket and the second adjusting seat; the gear is installed between the rotating shaft and the second adjusting seat, the ratchet box is installed on the right inner wall of the housing, the two-way ratchet is slidably installed in the ratchet box, the composite spring is installed in the ratchet box, and the reset spring can drive the two-way ratchet to pass through one side of the ratchet box, so that the two ratchet teeth 32511 of the two-way ratchet are engaged with the gear to brake the gear; one end of the ratchet lever is fixedly connected to the two-way ratchet, and the other end of the ratchet lever passes through the avoidance waist hole 116 on the housing. Moving the ratchet lever can drive the two-way ratchet to unlock the brake on the gear and compress the reset spring to store energy; the control module is arranged in the housing and is electrically connected to the camera module, and is used to generate driving control information or warning information based on the image captured by the camera module.

[0034] In the above structure, by setting a first angle adjustment component between the left side of the mounting body of the camera module and the left inner wall of the shell, and setting a second angle adjustment component between the right side of the mounting body of the camera module and the right inner wall of the shell, the angle adjustment and positioning function of the camera module relative to the shell is realized; the vehicle-mounted camera module can be freely matched with vehicle models with different windshield angles, thereby greatly reducing the product development cycle and production cost. Among them, the first angle adjustment component is rotatably mounted on the left inner wall of the shell by means of the first adjustment seat, realizing the rotation function of the left side of the mounting body of the vehicle-mounted camera module, the second angle adjustment component is rotatably mounted in the right shaft sleeve hole of the shell by means of the rotating shaft, realizing the rotation function of the right side of the mounting body of the vehicle-mounted camera module, and the rotating shaft is also used to connect the second adjustment seat and the rotating bracket inside and outside the shell, and the rotating bracket is used to operate the angle adjustment, the gear is meshed with the bidirectional ratchet of the ratchet assembly, and is used to realize the function of locking the vehicle-mounted camera module after the angle adjustment, the reset spring is used to provide the driving force for locking, and the ratchet lever is used to manually operate the unlocking gear and the bidirectional ratchet. In this way, the locking function after angle adjustment can be realized to prevent the lens from rotating unnecessarily due to vibration and other reasons during the use of the product. That is, after the product is assembled, the two-way ratchet is against the gear under the action of the spring force of the reset spring. Since the gear is fixedly connected to the vehicle-mounted camera module through the second adjustment seat, the lens cannot rotate. When the angle needs to be adjusted, the ratchet lever can be turned to drive the two-way ratchet backward, so that the two-way ratchet is separated from the gear, and the brake of the two-way ratchet on the gear is unlocked. At this time, the lens angle can be adjusted by adjusting the rotating bracket, and then the ratchet lever is released. The two-way ratchet is meshed with the gear again under the action of the spring force, so that the product is locked and cannot rotate. The control module is arranged in the shell, and the image collected by the camera module can be used to generate driving control information or warning information to output to the vehicle control system, thereby prompting the user according to the driving control information, or directly controlling the driving of the vehicle according to the driving control information. Therefore, compared with the prior art, the vehicle-mounted camera module of the present invention realizes the angle adjustment function of the lens and can ensure that the angle is securely locked after adjustment, so that the vehicle-mounted camera module can be matched with vehicle models with windshields of different angles, greatly reducing the product development cycle and cost.

[0035] In the above structure, the gear is installed between the rotating shaft and the second adjustment seat. Fig. 9 and Fig.11 The gear and the second adjusting seat are integrally formed.

[0036] Preferably, see Figure 1 and Figure 3, the shell includes a rear shell 11 and a front cover 12, the front cover and the rear shell are assembled to form the assembly space, the middle part of the outer side of the front cover is concave to form a cavity 121, the periphery of the cavity forms an annular mounting plane 122, the bottom of the cavity is formed with a lens hole 1211, the lens 21 of the camera mold extends into the cavity through the lens hole. In this way, by designing the shell to be composed of a rear shell and a front cover, an assembly space for assembling a camera module and a control module can be formed, wherein the annular mounting plane on the outer side of the front cover is used to achieve installation with the vehicle windshield, for example, it can be attached to the front windshield of a car by means of adhesive. The cavity in the middle part of the outer side of the front cover is used to avoid the opening angle of the lens of the camera module to prevent interference. In this way, the lens of the camera module can swing up and down to adapt to different angles of the front windshield. For example, the angle between the front windshield of a vehicle and the ground is 75°. After the vehicle-mounted camera module with the ratchet angle adjustment mechanism of the present invention is installed, the lens of the camera module is not parallel to the ground and the lens angle needs to be adjusted. By lowering the lens counterclockwise by 15°, the lens can be kept parallel to the ground.

[0037] Preferably, see Figure 4 , Figure 5 and Fig. 9 The first angle adjustment component includes a first adjustment seat 311, a fastening cover 312 and a compression spring 313. A slot 111 is formed on the left inner wall of the rear shell, and a pillow block hole 1111 is formed on one side of the slot. The inner side of the first adjustment seat is detachably fixed to the left side of the mounting body 22 of the camera module. A pillow block 3113 is formed on the outer side of the first adjustment seat, and a receiving groove 3114 is formed in the axial direction of the pillow block. The fastening cover is arranged in the slot, and the pillow block is rotatably inserted into the pillow block hole. The compression spring is installed in the receiving groove in a compressed state, and one end of the compression spring is placed against the inner side of the fastening cover. In this way, the first angle adjustment component realizes the rotation function of the left side of the mounting body of the camera module by means of the cooperation between the first adjustment seat, the fastening cover and the slot on the rear shell, wherein the fastening cover is arranged in the slot of the shell, and the pillow block is inserted into the pillow block hole of the slot. The rotation function is realized by means of the rotation of the pillow block relative to the pillow block hole. In the axial direction (or x-direction), since the fastening cover is subjected to the elastic force of the compression spring, the fastening cover will press against the inner wall of the slot of the rear shell body. At the same time, the compression spring makes the second adjustment seat on the right side of the mounting body press against the rear shell body, so that the camera module has only a tiny degree of freedom in the axial direction, which can effectively prevent jamming and facilitate angle adjustment.

[0038] Preferably, see Figure 5 and Fig. 9The outer side of the fastening cover is formed with a plurality of anti-rotation ribs 3121, and the inner wall of the slot facing the fastening cover is formed with anti-rotation rib positions 1112 corresponding to the anti-rotation ribs. In this way, the fastening cover can be prevented from rotating relative to the slot by the cooperation between the anti-rotation ribs and the anti-rotation rib positions.

[0039] Preferred, preferred, see Figure 1 and Figure 2 The rotating bracket is formed with an arc groove 3231 with the rotating shaft as the center or a plurality of positioning holes arranged in an arc with the rotating shaft as the center, and the rotating bracket is locked on the right outer wall of the housing by a first fastener 33 passing through the arc groove or the positioning hole. In this way, the rotating bracket cooperates with the first fastener through the arc groove or the plurality of positioning holes arranged at intervals, and can further lock the product after the angle adjustment, so as to achieve the purpose of double protection.

[0040] Preferably, see Fig.12 and Fig.13 The ratchet box includes a ratchet base 32521 and a ratchet cover 32522. A ratchet slot 325211 and a spring slot 325212 are formed on the ratchet base. At least one guide post 325213 is formed in the ratchet slot. A guide waist hole 32512 corresponding to the guide post is formed on the bidirectional ratchet. The bidirectional ratchet is arranged in the ratchet slot, and the guide post is inserted in the guide waist hole. The inner side of the ratchet slot is connected to the spring slot. The reset spring is positioned and accommodated in the spring slot, and one end of the reset spring is placed against the inner side of the bidirectional ratchet. In this way, the sliding guide function of the bidirectional ratchet can be realized by arranging the ratchet slot on the ratchet base. The bidirectional ratchet is limited between the ratchet cover and the ratchet base. Through the cooperation of the guide waist hole and the guide post, the bidirectional ratchet can be realized to move only in the driving direction of the reset spring.

[0041] Preferably, see Figure 1 and Figure 8 The ratchet assembly also includes a mounting bracket 3255, which is arranged on the right inner wall of the shell, and the ratchet base is placed on the mounting bracket and locked to the mounting bracket by at least two second fasteners 34. In this way, the mounting bracket can ensure that the position of the ratchet box is fixed, so that the plane where the bidirectional ratchet in the ratchet box is located is parallel to the plane where the gear is located, so that the bidirectional ratchet can be engaged with the gear after being extended. The mounting bracket can be composed of a plurality of fence plates 32551 arranged at intervals, and a stud 32552 corresponding to the second fastener is formed on the mounting bracket. The second fastener, such as a screw, penetrates from the outside of the shell and is guided by the stud and then fixedly connected to the threaded hole on the ratchet base, so as to facilitate the installation and fixation of the ratchet box.

[0042] Preferably, see Figure 7 , the rotating shaft is composed of a first semi-shaft 3221 and a second semi-shaft 3222, the first semi-shaft is fixedly connected or integrally formed with the second adjustment seat, the second semi-shaft is fixedly connected or integrally formed with the rotating bracket, and the first semi-shaft and the second semi-shaft are detachably fixedly connected. Preferably, a third fastener 35 is provided, a threaded hole is formed on the first semi-shaft, a through hole is formed on the second semi-shaft, and the third fastener passes through the through hole from the outside to the inside and is threadedly connected with the threaded hole. In this way, it is convenient to assemble the rotating bracket and the second adjustment seat. During installation, it is only necessary to lock the second semi-shaft and the first semi-shaft together through the third fastener such as a screw to complete the installation and fixation of the rotating bracket and the second adjustment seat. However, it is not limited to this, the rotating shaft can also be an integral shaft, one end of the rotating shaft is integrally formed with the second adjustment seat, and the rotating bracket is fixedly connected to the other end of the rotating shaft through a fastener.

[0043] Preferably, the rotating bracket is in the shape of a sector, the central angle of the sector is integrally formed with the second semi-axis, and the arc groove or the positioning hole is arranged near the arc edge of the sector; or, the rotating bracket is in the shape of a triangle, the top angle of the triangle is integrally formed with the second semi-axis, and the arc groove or the positioning hole is arranged near the bottom edge of the triangle. In this way, the operator can easily adjust the angle of the vehicle-mounted camera module by operating the sector-shaped rotating bracket with the help of the lever principle, and the sector-shaped rotating bracket has a beautiful appearance and is easy to hold. Optionally, the rotating bracket can also be designed as a triangle or other shape, as long as it is convenient to set an arc groove thereon.

[0044] Preferably, see Fig.11 The two ends of the first half shaft connected to the second half shaft are engaged with each other through the mating protrusion 32221 and the groove 32211. Through the mating of the protrusion and the groove, the first half shaft and the second half shaft can be engaged with each other, so that the second half shaft can be driven to drive the first half shaft, preventing the two half shafts from rotating relative to each other.

[0045] Preferably, see Figure 1 and Figure 2 A protrusion 113 is formed on the right outer wall of the rear housing, and a scale line 114 for marking the rotation angle is engraved on the protrusion with the rotation axis as the center. In this way, by setting the rotation angle scale line, the operator can clearly see the adjusted angle, so as to achieve the purpose of quickly adjusting the angle.

[0046] Preferably, see Figure 4 , Figure 5 and Fig.10, two first positioning pins 3111 and a first positioning block 3112 are formed on the inner side of the first adjustment seat, the first positioning block and the two first positioning pins are arranged in a triangle, a first pin hole corresponding to the first positioning pin is formed on the left side of the installation body, and a first mounting hole 221 is formed on the top of the installation body near the left side, the first positioning pin is inserted into the first pin hole, and the first positioning block and the first mounting hole are locked together by a fastener. In this way, the two first positioning pins realize the positioning of the first adjustment seat and the installation body from the side, and the first positioning block realizes the fixation of the first adjustment seat and the installation body from the top, the connection is firm and easy to disassemble and assemble, and only one fastener such as a screw is needed to realize installation and fixation.

[0047] Preferably, see Figure 6 and Fig.11 , two second positioning pins 3211 and a second positioning block 3212 are formed on the inner side of the second adjustment seat, the second positioning block and the two second positioning pins are arranged in a triangle, a second pin hole corresponding to the second positioning pin is formed on the right side of the installation body, and a second mounting hole 222 is formed on the top of the installation body near the right side, the second positioning pin is inserted into the second pin hole, and the second positioning block and the second mounting hole are locked together by a fastener. In this way, the two second positioning pins realize the positioning of the second adjustment seat and the installation body from the side, and the second positioning block realizes the fixation of the second adjustment seat and the installation body from the top, the connection is firm and easy to disassemble and assemble, and only one fastener such as a screw is needed to realize installation and fixation.

[0048] Preferably, see Figure 3 , the control module includes a PCB circuit board 42 integrated with an image processor and a control chip 41 and an FPC circuit board 43 for electrically connecting the PCB circuit board and the camera module. Preferably, the camera module is arranged near the top of the assembly space, the PCB circuit board is arranged near the bottom of the assembly space, a communication interface 44 is also integrated on the PCB circuit board, and a communication window 115 for avoiding the connector is formed at the bottom of the rear shell. In this way, the image processor is connected to the camera module for processing the image information obtained by the camera module; the control chip is connected to the image processor for generating driving control information or driving warning information based on the processing result of the image processor. Among them, the control chip can be an FPGA chip or an ARM chip, etc. The driving control information or driving warning information generated by the FPGA chip can be output to the vehicle control system through the communication interface, and the vehicle control system can prompt the user according to the driving control information, or directly control the driving of the vehicle according to the driving control information.

[0049] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A vehicle-mounted camera module with a ratchet angle adjustment mechanism, characterized in that: The invention comprises a housing (1) having an assembly space, a camera module (2), a ratchet angle adjustment mechanism (3) and a control module (4), wherein the ratchet angle adjustment mechanism comprises a first angle adjustment component (31) and a second angle adjustment component (32), wherein the camera module is arranged in the assembly space of the housing, wherein the first angle adjustment component is installed between the left side of the camera module and the left inner wall of the housing, and is used to realize the function of rotating the left side of the camera module relative to the housing; the second angle adjustment component comprises a second adjustment seat (321), a rotating shaft (322), a rotating bracket (323), a gear (324) and a ratchet assembly (325), wherein the ratchet assembly comprises a bidirectional ratchet (3251), a ratchet box (3252), a ratchet lever (3253) and a reset spring (3254), wherein the inner side of the second adjustment seat is detachably fixed to the right side of the camera module, and the rotating bracket is arranged On the right outer wall of the shell, the rotating shaft is rotatably installed in the shaft sleeve hole (112) formed on the right wall of the shell, and the rotating shaft is connected between the rotating bracket and the second adjustment seat; the gear is installed between the rotating shaft and the second adjustment seat, the ratchet box is installed on the right inner wall of the shell, the two-way ratchet is slidably installed in the ratchet box, the reset spring is installed in the ratchet box, and the reset spring can drive the two-way ratchet to pass through one side of the ratchet box, so that the two ratchet teeth (32511) of the two-way ratchet are engaged with the gear, thereby braking the gear; one end of the ratchet lever is fixedly connected to the two-way ratchet, and the other end of the ratchet lever passes through the avoidance waist hole (116) on the shell, and moving the ratchet lever can drive the two-way ratchet to unlock the brake on the gear and compress the reset spring to store energy; The control module is disposed in the housing and is electrically connected to the camera module, and is used to generate driving control information or warning information based on the image captured by the camera module; The housing comprises a rear housing (11) and a front cover (12); the front cover and the rear housing are assembled to form the assembly space; the middle portion of the outer side of the front cover is concave to form a cavity (121); the periphery of the cavity forms an annular mounting plane (122); a lens hole (1211) is formed at the bottom of the cavity; the lens (21) of the camera module extends into the cavity through the lens hole; The first angle adjustment assembly comprises a first adjustment seat (311), a fastening cover (312) and a compression spring (313); a card slot (111) is formed on the left inner wall of the rear shell; a pillow block hole (1111) is formed on one side of the card slot; the inner side of the first adjustment seat is detachably fixed to the left side of the mounting body (22) of the camera module; a pillow block (3113) is formed on the outer side of the first adjustment seat; a receiving groove (3114) is formed axially of the pillow block; the fastening cover is arranged in the card slot; the pillow block is rotatably inserted into the pillow block hole; the compression spring is installed in the receiving groove in a compressed state, and one end of the compression spring is placed against the inner side of the fastening cover; The rotating bracket is formed with an arc groove (3231) with the rotating shaft as the center or a plurality of positioning holes arranged in an arc with the rotating shaft as the center, and the rotating bracket is locked on the right outer wall of the housing by a first fastener (33) inserted into the arc groove or the positioning hole; The ratchet box comprises a ratchet base (32521) and a ratchet cover plate (32522), a ratchet slide groove (325211) and a spring groove (325212) are formed on the ratchet base, at least one guide column (325213) is formed in the ratchet slide groove, a guide waist hole (32512) corresponding to the guide column is formed on the bidirectional ratchet, the bidirectional ratchet is arranged in the ratchet slide groove, and the guide column is passed through the guide waist hole, the inner side of the ratchet slide groove is connected to the spring groove, the reset spring is positioned and accommodated in the spring groove, and one end of the reset spring is placed against the inner side of the bidirectional ratchet; The ratchet assembly also includes a mounting bracket (3255), the mounting bracket is arranged on the right inner wall of the shell, the ratchet base is placed on the mounting bracket, and is locked to the mounting bracket by at least two second fasteners (34); The rotating shaft consists of a first half shaft (3221) and a second half shaft (3222), the first half shaft is fixedly connected to or integrally formed with the second adjustment seat, the second half shaft is fixedly connected to or integrally formed with the rotating bracket, and the first half shaft and the second half shaft are detachably fixedly connected.

2. The vehicle-mounted camera module with a ratchet angle adjustment mechanism according to claim 1, characterized in that: A protrusion (113) is formed on the right outer wall of the rear shell, and a scale line (114) for marking the rotation angle is engraved on the protrusion with the rotation axis as the center.

3. The vehicle-mounted camera module with a ratchet angle adjustment mechanism according to claim 2, characterized in that: The control module comprises a PCB circuit board (42) integrated with an image processor and a control chip (41) and an FPC circuit board (43) for electrically connecting the PCB circuit board and the camera module.

4. The vehicle-mounted camera module with a ratchet angle adjustment mechanism according to claim 3, characterized in that: The camera module is arranged near the top of the assembly space, the PCB circuit board is arranged near the bottom of the assembly space, a communication interface (44) is also integrated on the PCB circuit board, and a communication window (115) for avoiding the communication interface is formed at the bottom of the rear shell.

Images