Reversing warning projection device

Abstract

The invention discloses a backing warning projection device which comprises a lamp shell, a PCBA circuit board, a connecting base, a fixing support and an adjusting rod, the PCBA circuit board is provided with three projection modules, the fixing support comprises a support base, a left support supporting arm and a right support supporting arm, and the lamp shell is provided with a left pivot joint shaft part and a right pivot joint shaft part. The left side pivoting shaft part is pivoted and mounted in a left side pivoting hole of the left side bracket supporting arm, and the right side pivoting shaft part is pivoted and mounted in a right side pivoting hole of the right side bracket supporting arm; the adjusting rod is installed on the support base part, a shell protruding part is arranged at the upper end of the lamp shell, and meshing lines meshed with the screw rod part of the adjusting rod are arranged on the inner wall of an arc-shaped groove in the upper surface of the shell protruding part. The PCBA circuit board is provided with a processor module and a signal receiving module, and the signal receiving module and the projection modules are electrically connected with the processor module. The back-up warning projection device is novel in design, high in adaptability, accurate and reliable in warning action and capable of warning vehicles behind and pedestrians lowering the head in a distinguished mode.

Description

Technical Field

[0001] The invention relates to the technical field of automobile products, and in particular to a reversing warning projection device. Background Art

[0002] The patent number is: ZL202420013791.0, and the patent name is: A Chinese invention patent for a reversing lamp and a vehicle having the same. Its essence discloses a car reversing warning projection device; specifically, the reversing lamp includes a substrate, a radiator, at least one projection module and a decorative ring bracket. The radiator is arranged on one side of the substrate and is used to dissipate heat from the substrate. At least one projection module is arranged on the other side of the substrate and is used to project the lit image onto the ground. Multiple projection modules are arranged in sequence along the lateral direction of the substrate; the decorative ring bracket is installed on the side of at least one projection module away from the substrate and is used to fix the projection module to the substrate.

[0003] During the operation of the above-mentioned reversing lights, the projection module can guide pedestrians and vehicles, thereby passively improving the safety of the reversing process; when in use, the projection module projects the lit image onto the ground, guiding the direction and area during the reversing process, so as to facilitate the perception of pedestrians and passing vehicles, thereby improving the safety of the car during reversing.

[0004] It should be pointed out that the above-mentioned reversing lamp still has the following defects, specifically:

[0005] Defect 1. In the process of projecting the lit image onto the ground through the projection module, the projection angle of the projection module cannot be adaptively adjusted according to the different requirements of different vehicles and users, which is inconvenient to use and has poor adaptability;

[0006] Defect 2: The warning action cannot be implemented accurately and reliably, and it cannot effectively distinguish and warn the vehicles behind and pedestrians who are looking down. Summary of the invention

[0007] The purpose of the present invention is to provide a reversing warning projection device to address the deficiencies of the prior art. The reversing warning projection device has a novel structural design, strong adaptability, accurate and reliable warning action, and can effectively distinguish and warn rear vehicles and pedestrians with their heads down.

[0008] To achieve the above object, the present invention is implemented through the following technical solutions.

[0009] A reversing warning projection device comprises a lamp housing, a PCBA circuit board installed inside the lamp housing, the PCBA circuit board is equipped with three projection modules which are arranged in sequence from left to right and project forward respectively, and the three projection modules are sequentially arranged from left to right as a first projection module, a second projection module, and a third projection module;

[0010] The reversing warning projection device also includes a connecting seat which is fixedly installed at the rear position of the vehicle when in use, the connecting seat is fixedly installed with a fixing bracket, the fixing bracket includes a bracket base, a left bracket arm arranged at the left end of the bracket base, and a right bracket arm arranged at the right end of the bracket base, the left bracket arm is provided with a left pivot hole, and the right bracket arm is provided with a right pivot hole which is axially aligned with the left pivot hole;

[0011] The lamp housing is located between the left bracket arm and the right bracket arm, and the lamp housing is provided with a left pivot shaft portion corresponding to the left pivot hole and a right pivot shaft portion corresponding to the right pivot hole, the left pivot shaft portion is pivotally installed in the left pivot hole, and the right pivot shaft portion is pivotally installed in the right pivot hole;

[0012] The bracket base is provided with an adjustment rod above the lamp housing, and a screw portion is provided in the middle of the adjustment rod; an upwardly protruding housing convex portion is provided at the upper end of the lamp housing, an arc-shaped groove is provided on the upper surface of the housing convex portion, and an engagement pattern that engages with the screw portion of the adjustment rod is provided on the inner wall of the arc-shaped groove;

[0013] The PCBA circuit board is provided with a processor module, a signal receiving module electrically connected to the vehicle's reversing light actuating power source, and the signal receiving module, the first projection module, the second projection module, and the third projection module are electrically connected to the processor module respectively;

[0014] The reversing warning projection device implements the reversing warning by adopting the following steps, specifically:

[0015] Step S1, obtaining a vehicle reversing light signal through a signal receiving module;

[0016] When the reversing light actuating power source of the vehicle is in an on state and the reversing light of the vehicle is on, the signal receiving module obtains the reversing light signal of the vehicle and sends the reversing light signal of the vehicle to the processor module;

[0017] When the vehicle's reverse light actuation power source is in the off state and the vehicle's reverse light is off, the signal receiving module cannot receive the signal;

[0018] Step S2, the processor module controls the first projection module, the second projection module, and the third projection module to turn on respectively;

[0019] The second projection module is used as a reversing projection module, and the second projection module projects a warning yellow dynamic arrow image onto the ground to warn that the rear vehicle has entered the reversing state;

[0020] The first projection module and the third projection module are respectively projection modules for warning pedestrians who are looking down. The first projection module projects a warning flashing red light text image onto the ground in the left area behind the vehicle, and the third projection module projects a warning flashing red light text image onto the ground in the right area behind the vehicle, so as to remind pedestrians who are looking down on both sides behind the vehicle to stop driving;

[0021] Step S3: When the vehicle reversing light signal ends, the signal receiving module cannot receive the signal, and the processor module controls the first projection module, the second projection module, and the third projection module to be turned off respectively.

[0022] The front end of the adjusting rod is provided with an adjusting driving part, the adjusting driving part and the screw part are arranged axially spaced apart, the part of the adjusting rod located between the adjusting driving part and the screw part is the front shaft part, the part of the adjusting rod located behind the screw part is the rear shaft part, the adjusting driving part, the front shaft part, the screw part and the rear shaft part are sequentially connected and form an integrated structure;

[0023] The bracket base is provided with a front anti-drop buckle, a front limit stopper, a rear limit stopper, and a rear anti-drop buckle arranged in sequence from front to rear corresponding to the adjusting rod, the front anti-drop buckle is buckled with the front shaft of the adjusting rod, and the rear anti-drop buckle is buckled with the rear shaft of the adjusting rod;

[0024] The screw rod portion is located between the front limit stop portion and the rear limit stop portion, and the screw rod portion realizes axial limitation through the cooperation between the front limit stop portion and the rear limit stop portion.

[0025] Wherein, the lamp housing comprises a rear shell, a lens which is fixedly mounted on the rear shell and located at the front end side of the rear shell, and the PCBA circuit board is fixedly mounted on the rear shell;

[0026] The left pivot shaft is arranged at the left end of the lens and protrudes toward the left, the right pivot shaft is arranged at the right end of the lens and protrudes toward the right, and the housing protrusion is arranged at the upper end of the lens and protrudes upward.

[0027] Among them, the lamp housing also includes a front shell located between the rear shell and the lens, the front shell and the rear shell are buckled together, the PCBA circuit board is fastened and installed between the rear shell and the front shell, and the front shell is provided with projection through holes corresponding to each of the projection modules, and the front end of each projection module passes through the corresponding projection through hole of the front shell.

[0028] Wherein, the lens, the housing protrusion, the left pivot shaft portion, and the right pivot shaft portion are an integrated structure.

[0029] The support base, the left support arm, and the right support arm are an integrated structure, and the support base is screwed and fastened to the connecting seat by means of locking screws.

[0030] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0031] 1. During the use of the reversing warning projection device of the present invention, the user can adjust the angle of the lamp housing through the adjustment rod, and then adaptively adjust the projection angle of the projection module; therefore, the reversing warning projection device of the present invention can adaptively adjust the projection angle of the projection module according to different requirements of different vehicles and users, and is easy to use and highly adaptable;

[0032] 2. During the process of the reversing warning projection device of the present invention, since the signal receiving module directly receives the signal of the reversing light actuating power supply of the vehicle, the reversing warning action is synchronized with the reversing light of the vehicle. This action mode has the advantage of good action reliability, that is, the reversing warning projection device of the present invention has the advantage of accurate and reliable warning action;

[0033] 3. The first projection module, the second projection module, and the third projection module of the present invention can effectively distinguish and warn the rear vehicles and pedestrians with their heads down. The distinguished warning can effectively improve the warning effect, thereby effectively improving the safety of the vehicle during reversing.

[0034] 4. Therefore, the present invention has the advantages of novel structural design, strong adaptability, accurate and reliable warning action, and can effectively distinguish and warn rear vehicles and pedestrians with their heads down. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention is further described below with the aid of the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0036] Figure 1 It is a structural schematic diagram of the present invention.

[0037] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention.

[0038] Figure 3 It is a schematic diagram of the decomposition of the present invention.

[0039] Figure 4 It is a cross-sectional schematic diagram of the present invention.

[0040] Figure 5 It is a cross-sectional schematic diagram from another viewing angle of the present invention.

[0041] Figure 6 It is a schematic structural diagram of the fixing bracket of the present invention.

[0042] Figure 7 The schematic diagram of the PCBA circuit board of the present invention is shown in FIG.

[0043] exist Figures 1 to 7 Included are:

[0044] 1-lamp housing; 11-left pivot axis; 12-right pivot axis; 13-housing protrusion; 131-engaging pattern; 14-rear housing; 15-lens; 16-front housing; 161-projection through hole; 2-PCBA circuit board; 21-processor module; 22-signal receiving module; 31-first projection module; 32-second projection module; 33-third projection module; 4-connecting seat; 5-fixed bracket; 51-bracket base; 511-front anti-drop buckle; 512-front limit stopper; 513-rear limit stopper; 514-rear anti-drop buckle; 52-left bracket arm; 521-left pivot hole; 53-right bracket arm; 531-right pivot hole; 6-adjusting rod; 61-screw rod; 62-adjusting drive unit; 63-front shaft; 64-rear shaft. DETAILED DESCRIPTION

[0045] The present invention is described below in conjunction with specific implementation methods.

[0046] Embodiment 1, as Figures 1 to 5 As shown, a reversing warning projection device includes a lamp housing 1, a PCBA circuit board 2 installed inside the lamp housing 1, and the PCBA circuit board 2 is equipped with three projection modules that are arranged in sequence from left to right and project forward respectively. The three projection modules are, from left to right, a first projection module 31, a second projection module 32, and a third projection module 33.

[0047] Among them, Figures 1 to 6 As shown, the reversing warning projection device also includes a connection seat 4 which is fixedly installed at the rear position of the vehicle when in use, and a fixing bracket 5 is fixedly installed on the connection seat 4, and the fixing bracket 5 includes a bracket base 51, a left bracket arm 52 arranged at the left end of the bracket base 51, and a right bracket arm 53 arranged at the right end of the bracket base 51. The left bracket arm 52 is provided with a left pivot hole 521, and the right bracket arm 53 is provided with a right pivot hole 531 which is axially aligned with the left pivot hole 521. It should be explained that the bracket base 51, the left bracket arm 52, and the right bracket arm 53 are an integrated structure, and the bracket base 51 is screwed and fastened to the connection seat 4 by a locking screw.

[0048] Further, such as Figures 1 to 6 As shown, the lamp housing 1 is located between the left bracket arm 52 and the right bracket arm 53, and the lamp housing 1 is provided with a left pivot shaft portion 11 corresponding to the left pivot hole 521, and a right pivot shaft portion 12 corresponding to the right pivot hole 531. The left pivot shaft portion 11 is pivotally installed in the left pivot hole 521, and the right pivot shaft portion 12 is pivotally installed in the right pivot hole 531.

[0049] Furthermore, if Figures 3 to 5 As shown, the bracket base 51 is equipped with an adjusting rod 6 above the lamp housing 1, and a screw portion 61 is provided in the middle of the adjusting rod 6; the upper end of the lamp housing 1 is provided with a housing protrusion 13 protruding upward, and an arc groove is provided on the upper surface of the housing protrusion 13, and the inner wall of the arc groove is provided with a meshing pattern 131 that meshes with the screw portion 61 of the adjusting rod 6.

[0050] It should be pointed out that if Figure 7 As shown, the PCBA circuit board 2 is provided with a processor module 21, a signal receiving module 22 electrically connected to the vehicle's reversing light actuating power supply, and the signal receiving module 22, a first projection module 31, a second projection module 32, and a third projection module 33 are electrically connected to the processor module 21 respectively.

[0051] In addition, the reversing warning projection device adopts the following steps to implement the reversing warning, specifically:

[0052] Step S1, obtaining a vehicle reversing light signal through the signal receiving module 22;

[0053] When the vehicle's reversing light actuating power source is in an on state and the vehicle's reversing light is on, the signal receiving module 22 acquires the vehicle's reversing light signal and sends the vehicle's reversing light signal to the processor module 21;

[0054] When the vehicle's reversing light actuating power source is in the off state and the vehicle's reversing light is off, the signal receiving module 22 cannot receive the signal;

[0055] Step S2, the processor module 21 controls the first projection module 31, the second projection module 32, and the third projection module 33 to turn on respectively;

[0056] The second projection module 32 is used as a reversing projection module, and the second projection module 32 projects a warning yellow dynamic arrow image onto the ground to warn that the rear vehicle has entered the reversing state;

[0057] The first projection module 31 and the third projection module 33 are respectively projection modules for warning pedestrians who are looking down. The first projection module 31 projects a warning flashing red light text image onto the ground in the left area behind the vehicle, and the third projection module 33 projects a warning flashing red light text image onto the ground in the right area behind the vehicle, so as to remind pedestrians who are looking down on both sides behind the vehicle to stop driving.

[0058] Step S3: When the vehicle reversing light signal ends, the signal receiving module 22 cannot receive the signal, and the processor module 21 controls the first projection module 31, the second projection module 32, and the third projection module 33 to be turned off respectively.

[0059] It should be emphasized that during the use of the reversing warning projection device of the first embodiment, the user can adjust the angle of the lamp housing 1 through the adjustment rod 6, thereby adaptively adjusting the projection angle of the projection module. Specifically, the user can rotate the adjustment rod 6 to rotate the screw portion 61 of the adjustment rod 6. Since the meshing thread of the housing protrusion 13 of the lamp housing 1 is meshed with the screw portion 61, during the rotation of the screw portion 61, the adjustment rod 6 will drive the lamp housing 1 to rotate with the pivot position of the left pivot shaft portion 11 and the left pivot hole 521 and the pivot position of the right pivot shaft portion 12 and the right pivot hole 531 as the rotation center to adjust the angle of the lamp housing 1. Therefore, the reversing warning projection device of the first embodiment can adaptively adjust the projection angle of the projection module according to different requirements of different vehicles and users, and is easy to use and highly adaptable.

[0060] During the reversing warning process performed by the reversing warning projection device of the first embodiment, since the signal receiving module 22 directly receives the signal of the reversing light actuating power supply of the vehicle, that is, the reversing warning action is synchronized with the reversing light of the vehicle, this action mode has the advantage of good action reliability, that is, the reversing warning projection device of the first embodiment has the advantage of accurate and reliable warning action.

[0061] In addition, the first projection module 31, the second projection module 32, and the third projection module 33 of the first embodiment can effectively distinguish and warn the rear vehicles and pedestrians with their heads down. Specifically, the second projection module 32 projects a warning yellow dynamic arrow image onto the ground to warn that the rear vehicle has entered the reverse driving state; the first projection module 31 and the third projection module 33 are respectively warning projection modules for pedestrians with their heads down. The first projection module 31 projects a warning flashing red text image onto the ground in the left area behind the vehicle, and the third projection module 33 projects a warning flashing red text image onto the ground in the right area behind the vehicle to remind pedestrians with their heads down on both sides behind the vehicle to stop driving. The above-mentioned differentiated warnings can effectively improve the warning effect, and thus effectively improve the safety of the vehicle during reverse action.

[0062] Based on the above, it can be seen that the reversing warning projection device of the first embodiment has the advantages of novel structural design, strong adaptability, accurate and reliable warning action, and can effectively distinguish and warn rear vehicles and pedestrians with their heads down.

[0063] Embodiment 2, as Figures 3 to 5As shown, the difference between the second embodiment and the first embodiment is that an adjusting drive portion 62 is provided at the front end portion of the adjusting rod 6, the adjusting drive portion 62 and the screw portion 61 are axially spaced apart, the portion of the adjusting rod 6 located between the adjusting drive portion 62 and the screw portion 61 is the front shaft portion 63, the portion of the adjusting rod 6 located at the rear side of the screw portion 61 is the rear shaft portion 64, the adjusting drive portion 62, the front shaft portion 63, the screw portion 61 and the rear shaft portion 64 are sequentially connected and form an integrated structure.

[0064] Among them, the bracket base 51 corresponds to the adjusting rod 6 and is provided with a front anti-drop buckle 511, a front limit stop 512, a rear limit stop 513, and a rear anti-drop buckle 514 which are arranged in sequence from front to back. The front anti-drop buckle 511 is buckled with the front shaft 63 of the adjusting rod 6, and the rear anti-drop buckle 514 is buckled with the rear shaft 64 of the adjusting rod 6.

[0065] In addition, the screw portion 61 is located between the front limit stop portion 512 and the rear limit stop portion 513 , and the screw portion 61 achieves axial limitation through the cooperation between the front limit stop portion 512 and the rear limit stop portion 513 .

[0066] It should be explained that the lens 15, the housing protrusion 13, the left pivot shaft 11, and the right pivot shaft 12 are an integrated structure. Of course, the above-mentioned integrated structural design does not constitute a limitation on the second embodiment, that is, the lens 15, the housing protrusion 13, the left pivot shaft 11, and the right pivot shaft 12 of the first embodiment can adopt a split structural design, that is, the housing protrusion 13, the left pivot shaft 11, and the right pivot shaft 12 of the second embodiment can be respectively installed on the lens 15 by screw connection or buckle connection.

[0067] For the adjustment rod 6 of the second embodiment, the axial limit is achieved by the cooperation of the front limit stopper 512 and the rear limit stopper 513, and the anti-dropout installation is achieved by the cooperation of the front anti-dropout buckle 511 and the rear anti-dropout buckle 514. Since there is an assembly gap between the front anti-dropout buckle 511 and the front shaft portion 63 and between the rear anti-dropout buckle 514 and the rear shaft portion 64, the above assembly gap can ensure that interference is avoided during the process of adjusting the angle of the lamp housing 1.

[0068] For the adjustment driving part 62 of the second embodiment, during the process of rotating the adjustment rod 6 , the user can operate the adjustment driving part 62 by using a wrench or a screwdriver.

[0069] Embodiment three, as Figures 1 to 5 As shown, the difference between the third embodiment and the first embodiment is that the lamp housing 1 includes a rear shell 14 , a lens 15 fixedly mounted on the rear shell 14 and located at the front end side of the rear shell 14 , and the PCBA circuit board 2 is fixedly mounted on the rear shell 14 .

[0070] The left pivot shaft 11 is disposed at the left end of the lens 15 and protrudes toward the left, the right pivot shaft 12 is disposed at the right end of the lens 15 and protrudes toward the right, and the housing protrusion 13 is disposed at the upper end of the lens 15 and protrudes upward.

[0071] Embodiment 4, as Figures 3 to 5 As shown, the difference between the fourth embodiment and the third embodiment is that: the lamp housing 1 also includes a front shell 16 located between the rear shell 14 and the lens 15, the front shell 16 is buckled with the rear shell 14, the PCBA circuit board 2 is fastened and installed between the rear shell 14 and the front shell 16, and the front shell 16 is respectively provided with projection through holes 161 corresponding to each projection module, and the front end of each projection module passes through the corresponding projection through holes 161 of the front shell 16.

[0072] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A reversing warning projection device, comprising a lamp housing (1), a PCBA circuit board (2) installed inside the lamp housing (1), the PCBA circuit board (2) being equipped with three projection modules which are arranged in sequence from left to right and project forward respectively, the three projection modules being, from left to right, a first projection module (31), a second projection module (32), and a third projection module (33); Features: The reversing warning projection device also includes a connecting seat (4) which is fixedly mounted at the rear of the vehicle when in use, the connecting seat (4) being fixedly mounted with a fixing bracket (5), the fixing bracket (5) including a bracket base (51), a left bracket support arm (52) arranged at the left end of the bracket base (51), and a right bracket support arm (53) arranged at the right end of the bracket base (51), the left bracket support arm (52) being provided with a left pivot hole (521), and the right bracket support arm (53) being provided with a right pivot hole (531) axially aligned with the left pivot hole (521); The lamp housing (1) is located between the left bracket arm (52) and the right bracket arm (53); the lamp housing (1) is provided with a left pivot shaft portion (11) corresponding to the left pivot hole (521) and a right pivot shaft portion (12) corresponding to the right pivot hole (531); the left pivot shaft portion (11) is pivotally mounted in the left pivot hole (521), and the right pivot shaft portion (12) is pivotally mounted in the right pivot hole (531); The bracket base (51) is provided with an adjustment rod (6) above the lamp housing (1), and a screw portion (61) is provided in the middle of the adjustment rod (6); an upwardly protruding housing convex portion (13) is provided at the upper end of the lamp housing (1), an arc-shaped groove is provided on the upper surface of the housing convex portion (13), and an inner wall of the arc-shaped groove is provided with a meshing pattern (131) meshing with the screw portion (61) of the adjustment rod (6); The PCBA circuit board (2) is provided with a processor module (21), a signal receiving module (22) electrically connected to a reversing light actuating power source of the vehicle, and the signal receiving module (22), a first projection module (31), a second projection module (32), and a third projection module (33) are electrically connected to the processor module (21), respectively; The reversing warning projection device implements the reversing warning by adopting the following steps, specifically: Step S1, obtaining a vehicle reversing light signal through a signal receiving module (22); When the reversing light actuating power source of the vehicle is in an on state and the reversing light of the vehicle is on, the signal receiving module (22) obtains the reversing light signal of the vehicle and sends the reversing light signal of the vehicle to the processor module (21); When the reversing light actuating power source of the vehicle is in an off state and the reversing light of the vehicle is off, the signal receiving module (22) cannot receive the signal; Step S2: the processor module (21) controls the first projection module (31), the second projection module (32), and the third projection module (33) to turn on respectively; The second projection module (32) serves as a reversing projection module, and the second projection module (32) projects a warning yellow light dynamic arrow image onto the ground to warn that the rear vehicle has entered a reversing state; The first projection module (31) and the third projection module (33) are respectively projection modules for warning pedestrians who are looking down. The first projection module (31) projects a warning flashing red light text image onto the ground in the left area behind the vehicle, and the third projection module (33) projects a warning flashing red light text image onto the ground in the right area behind the vehicle, so as to remind pedestrians who are looking down on both sides behind the vehicle to stop. Step S3: When the vehicle reversing light signal ends, the signal receiving module (22) cannot receive the signal, and the processor module (21) controls the first projection module (31), the second projection module (32), and the third projection module (33) to be turned off respectively.

2. A reversing warning projection device according to claim 1, characterized in that: The front end of the adjusting rod (6) is provided with an adjusting drive portion (62), the adjusting drive portion (62) and the screw portion (61) are arranged axially spaced apart, the portion of the adjusting rod (6) located between the adjusting drive portion (62) and the screw portion (61) is a front shaft portion (63), the portion of the adjusting rod (6) located behind the screw portion (61) is a rear shaft portion (64), and the adjusting drive portion (62), the front shaft portion (63), the screw portion (61), and the rear shaft portion (64) are sequentially connected and form an integrated structure; The bracket base (51) is provided with a front anti-drop buckle (511), a front limit stopper (512), a rear limit stopper (513), and a rear anti-drop buckle (514) arranged in sequence from front to rear in correspondence with the adjustment rod (6); the front anti-drop buckle (511) is buckled with the front shaft (63) of the adjustment rod (6), and the rear anti-drop buckle (514) is buckled with the rear shaft (64) of the adjustment rod (6); The screw rod portion (61) is located between the front limit stop portion (512) and the rear limit stop portion (513), and the screw rod portion (61) achieves axial limitation by cooperating with the front limit stop portion (512) and the rear limit stop portion (513).

3. The reversing warning projection device according to claim 1, characterized in that: The lamp housing (1) comprises a rear housing (14), a lens (15) fixedly mounted on the rear housing (14) and located at the front end side of the rear housing (14), and the PCBA circuit board (2) is fixedly mounted on the rear housing (14); The left pivot shaft portion (11) is arranged at the left end portion of the lens (15) and protrudes and extends toward the left side, the right pivot shaft portion (12) is arranged at the right end portion of the lens (15) and protrudes and extends toward the right side, and the housing protrusion (13) is arranged at the upper end portion of the lens (15) and protrudes and extends upward.

4. A reversing warning projection device according to claim 3, characterized in that: The lamp housing (1) further comprises a front housing (16) located between the rear housing (14) and the lens (15); the front housing (16) and the rear housing (14) are buckled together; the PCBA circuit board (2) is fixedly mounted between the rear housing (14) and the front housing (16); the front housing (16) is provided with projection through holes (161) corresponding to the projection modules; and the front end of each projection module passes through the corresponding projection through holes (161) of the front housing (16).

5. The reversing warning projection device according to claim 3, characterized in that: The lens (15), the housing protrusion (13), the left pivot shaft portion (11), and the right pivot shaft portion (12) are an integrated structure.

6. The reversing warning projection device according to claim 1, characterized in that: The support base (51), the left support arm (52), and the right support arm (53) are an integrated structure, and the support base (51) is screwed and fastened to the connecting seat (4) by means of a locking screw.

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