Vehicle-mounted early warning camera

Abstract

The invention provides a vehicle-mounted early warning video camera, and belongs to the technical field of cameras, the vehicle-mounted early warning video camera comprises a monitoring unit, a protection unit and a trigger unit, the monitoring unit comprises a sliding rail with a sliding seat, a base in adsorption connection with the sliding seat and a video camera body installed on the base, and a storage cavity is formed in the side, away from the sliding rail, of the sliding seat; a through trigger cavity is further formed in the outer wall of the base; the protection unit comprises shields arranged on the two sides of the camera body in the first direction and sliding plates fixedly connected with the shields in a one-to-one correspondence mode, and the sliding plates are slidably connected with the base in the first direction. The trigger unit comprises a trigger plug arranged in the trigger cavity, a traction rope connected between the inner wall of the storage cavity and the trigger plug and a first elastic piece fixedly connected between the sliding plates and the inner wall of the trigger cavity, the trigger plug is provided with an insertion part inserted between the two sliding plates, and the first elastic piece has pre-tightening force enabling the two sliding plates to be close to each other. The camera fixing device has the effect of reducing damage to the camera after the camera falls off.

Description

Technical Field

[0001] The invention belongs to the technical field of cameras, and in particular relates to a vehicle-mounted early warning camera. Background Art

[0002] Camera monitoring equipment is widely used in multiple fields due to its powerful environmental perception capabilities. For example, in the anti-collision warning system of rubber-tyred trackless vehicles in coal mines, by installing camera detection equipment at specific locations on the vehicle, it can capture real-time information about the vehicle's surroundings and use intelligent analysis algorithms to identify potential obstacle collision risks. Once a dangerous situation is detected, the system can immediately issue a warning signal through sound and light alarms, voice prompts, or vibration feedback.

[0003] To meet the dual requirements of secure installation and easy removal, a composite mounting structure is currently commonly used: a slide rail is fixed to a suitable location on the vehicle, forming a relatively secure and semi-permanent connection, while the camera is detachably connected to the slide rail. Detachable connections are primarily achieved through physical snaps or suction. However, since in-vehicle devices require frequent removal and placement, such as for maintenance and charging, using physical snaps significantly increases the number of installation and removal steps and time, reducing the user experience. Therefore, suction is currently the mainstream method.

[0004] There are two main adsorption methods: magnetic adsorption and vacuum adsorption. However, regardless of whether it is connected by magnetic or vacuum adsorption, due to the large vibration and bumps in the operation of coal mine transportation equipment, adsorption failure is prone to occur during long-term use. Once the adsorption fails, the camera will fall off the slide seat of the slide rail. After falling off, the camera will collide with other objects, causing damage to the camera. Summary of the Invention

[0005] An embodiment of the present invention provides a vehicle-mounted early warning camera, which aims to solve the technical problem that the camera is damaged by colliding with other objects after falling.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a vehicle-mounted early warning camera, comprising: The monitoring unit includes a slide rail with a slide seat, a base connected to the slide seat by adsorption, and a camera body mounted on the base. The slide seat has a storage cavity on a side facing away from the slide rail, and the outer wall of the base also has a through trigger cavity. a protection unit comprising shields provided on both sides of the camera body along a first direction and slides fixedly connected to the shields in a one-to-one correspondence, the slides being slidably connected to the base along the first direction; The trigger unit includes a trigger plug arranged in the trigger cavity, a traction rope connected between the inner wall of the storage cavity and the trigger plug, and a first elastic member fixed between the slide and the inner wall of the trigger cavity, the trigger plug has an insertion portion inserted between the two slides, and the first elastic member has a pre-tightening force that makes the two slides approach each other.

[0007] In a possible implementation, a weight-increasing cavity is provided in each of the two shields; and the vehicle-mounted warning camera further includes a weight-increasing unit; The weight-increasing unit comprises: a fluid box fixedly connected to the housing of the slide rail, the fluid box containing fluid and having a through outlet; a connecting pipe connecting the outlet and the weight-increasing chamber; The opening and closing component is arranged at the outlet and is used for opening or closing the outlet.

[0008] In a possible implementation, the connecting pipe is connected to only one of the weight-increasing cavities, and both of the shields are provided with a chute communicating with the weight-increasing cavity, and the chute extends along the direction in which the shield moves; The weight-increasing unit further comprises: a plug disposed in the chute, the plug being slidably connected to the shield along an extension direction of the chute, the plug having a first liquid passage hole in communication with the outside, and an outer wall of the plug further having a second liquid passage hole in communication with the first liquid passage hole; a second elastic member, fixedly connected between the plug and the shield, and having a pre-tightening force that causes the plug to extend out of the slide slot; When the plug extends out of the chute, the second liquid hole is not connected to the weight-increasing cavity; after the plug moves into the chute, the second liquid hole is connected to the weight-increasing cavity.

[0009] In a possible implementation, one of the shields is provided with an embedding groove, the embedding groove is spaced apart on the outer circumference of the slide groove, and the other shield is fixed with a convex ring that is plug-fitted into the embedding groove.

[0010] In a possible implementation, the outer wall of the shield is provided with a plurality of receiving slots, the shield is further provided with a through slot connecting the receiving slots and the weight-added cavity, and the vehicle-mounted warning camera further includes a protection unit; The protection unit includes: an airbag, disposed in the receiving groove; The pneumatic component is arranged in the through groove and communicated with the air bag, and is used for pumping the gas in the weight-increasing cavity into the air bag.

[0011] In a possible implementation, the opening and closing component includes: a sealing plate, provided at the outlet, the sealing plate being rotatably connected to the fluid box, and the rotation axis of the sealing plate being parallel to the inner wall of the fluid box where the outlet is located; The third elastic member is provided at the connection between the sealing plate and the fluid box, and has a pre-tightening force that enables the sealing plate to close the outlet.

[0012] In a possible implementation, the protective cover is further provided with an annular adsorption port connected to the pneumatic component, and the adsorption port is provided on the outer periphery of the slide groove.

[0013] In one possible implementation, a reinforcement groove is formed in an inner wall of the trigger cavity, a fourth elastic member is disposed in the reinforcement groove, the fourth elastic member is fixedly connected between the inner wall of the reinforcement groove and the trigger plug, the fourth elastic member is retracted and expanded along the movement direction of the trigger plug, and the fourth elastic member has a pre-tightening force that causes the trigger plug to extend out of the trigger cavity; A sliding cavity is formed on the outer side of the trigger plug, and a filling block is provided in the sliding cavity. The filling block is slidably connected to the trigger plug along the moving direction of the trigger plug. One end of the traction rope is fixedly connected to the inner wall of the storage cavity, and the other end of the traction rope is fixedly connected to the filling block. The outer wall of the trigger plug is provided with a through cavity connecting the sliding cavity and the reinforcement groove, and a pressure plate is provided in the through cavity. The pressure plate is slidably connected to the trigger plug, and the movement direction of the pressure plate is perpendicular to the movement direction of the trigger plug. A fifth elastic member is fixedly connected between the pressure plate and the trigger plug, and the fifth elastic member is extended and retracted along the movement direction of the pressure plate. The fifth elastic member has a pre-tightening force that causes the pressure plate to be retracted into the through cavity; Wherein, the initial state of the filling block causes the fourth elastic member and the fifth elastic member to be in a compressed state.

[0014] In a possible implementation, a ball is rotatably connected to the outer wall of the filling block, the rotation axis of the ball is perpendicular to the moving direction of the filling block, and a rolling groove adapted for rolling of the ball is formed on the inner wall of the sliding cavity.

[0015] In a possible implementation, a plurality of traction ropes are provided.

[0016] Compared with the prior art, the vehicle-mounted early warning camera provided by the present invention is such that when the camera body falls from the sliding seat due to adsorption failure, the traction rope will pull the base, causing the camera body to be suspended in the air, thereby preventing the camera body from falling directly; while the traction rope pulls the base, due to the weight of the base and the camera body and the impact force of the fall, the trigger plug moves toward the outside of the storage cavity, thereby pulling the insert portion out from between the two slides. At this time, the first elastic member releases the elastic force, causing the two slides to approach each other, thereby bringing the two shields closer together, thereby forming a protective space between the two shields to completely cover the camera body. The present invention suspends the fallen camera body in the air through the traction rope, and at the same time, the two shields cover the camera body, thereby preventing the camera body from being bumped, thereby preventing the camera body from being damaged by bumps, and improving the service life of the vehicle-mounted early warning camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a vehicle-mounted warning camera according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the camera body after it falls down according to the embodiment of the present invention; Figure 3 This is a cross-sectional view of an embodiment of the present invention showing that two shields form a protective area; Figure 4 This is a partial cross-sectional view showing the communication mode of two weight-increasing chambers according to an embodiment of the present invention; Figure 5 This is a partial cross-sectional view of an opening and closing component according to an embodiment of the present invention.

[0018] Description of reference numerals: 10. Monitoring unit; 101. Slide rail; 1011. Slide seat; 10111. Storage chamber; 102. Base; 1021. Trigger chamber; 1022. Reinforcement groove; 1023. Fourth elastic member; 103. Camera body; 20, protection unit; 201, protective cover; 2011, weight-increasing cavity; 2012, slide groove; 2013, embedded groove; 2014, convex ring; 2015, storage groove; 2016, through groove; 2017, suction port; 202, slide plate; 30. Trigger unit; 301. Trigger plug; 3011. Insertion portion; 3012. Sliding cavity; 3013. Filling block; 30131. Ball; 3014. Through cavity; 3015. Pressing plate; 3016. Fifth elastic member; 3017. Rolling groove; 302. Pull rope; 303. First elastic member; 40. Weight-increasing unit; 401. Fluid box; 4011. Outlet; 402. Connecting pipe; 403. Plug; 4031. First liquid hole; 4032. Second liquid hole; 404. Second elastic member; 405. Closing plate; 50. Protection unit; 501. Airbag; 502. Pneumatic parts. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Please also refer to Figures 1 to 5 The vehicle-mounted warning camera of the present invention is described below. A vehicle-mounted warning camera includes a monitoring unit 10, a protection unit 20, and a trigger unit 30; the monitoring unit 10 includes a slide rail 101 having a slide 1011, a base 102 adsorbed and connected to the slide 1011, and a camera body 103 mounted on the base 102, a side of the slide 1011 facing away from the slide rail 101 is provided with a storage cavity 10111, and an outer wall of the base 102 is further provided with a through trigger cavity 1021; the protection unit 20 includes a shield 201 provided on both sides of the camera body 103 along a first direction and a plurality of shields 201 corresponding to the shields 201. The fixed slide 202 is slidably connected to the base 102 along a first direction; the trigger unit 30 includes a trigger plug 301 arranged in the trigger cavity 1021, a traction rope 302 connected between the inner wall of the storage cavity 10111 and the trigger plug 301, and a first elastic member 303 fixed between the slide 202 and the inner wall of the trigger cavity 1021. The trigger plug 301 has an insertion portion 3011 inserted between the two slides 202. The first elastic member 303 has a pre-tightening force that makes the two slides 202 approach each other. The first elastic member 303 is a spring rod or a spring.

[0021] In the vehicle-mounted warning camera provided by this embodiment, when the adsorption force between the base 102 and the slide 1011 fails, the camera body 103 and the base 102 begin to fall under the action of gravity; at the moment of falling, one end of the traction rope 302 is restrained by the inner wall of the storage cavity 10111, and the other end is connected to the trigger plug 301. The weight of the base 102 and the camera body 103 causes the traction rope 302 to straighten, suspending the base 102 below the slide rail 101; after the traction rope 302 is straightened, The traction rope 302 pulls the trigger plug 301 to move toward the outside of the storage cavity 10111, and the insertion part 3011 of the trigger plug 301 then withdraws from the gap between the two slides 202; after the insertion part 3011 withdraws, the limiting effect on the two slides 202 is released. At this time, the first elastic member 303 releases the elastic force to pull the slides 202 on both sides closer to each other, and the protective cover 201 fixed to the slide 202 moves synchronously until it closes to form a protective space surrounding the camera body 103.

[0022] Compared with the prior art, the camera body 103 falls off the slide 1011 due to adsorption failure, and the traction rope 302 will pull the base 102, so that the camera body 103 is suspended in the air, preventing the camera body 103 from falling directly; while the traction rope 302 pulls the base 102, due to the weight of the base 102 and the camera body 103 and the impact force of the fall, the trigger plug 301 moves toward the outside of the storage cavity 10111, thereby pulling the insertion part 3011 out from between the two slides 202. At this time, the first elastic member 303 releases the elastic force to make the two slides 202 approach each other, thereby bringing the two protective covers 201 close to each other, thereby forming a protective space for the two protective covers 201 to completely cover the camera body 103. The present invention suspends the fallen camera body 103 in the air through the traction rope 302, and at the same time the two shields 201 cover the camera body 103, thereby preventing the camera body 103 from being bumped, thereby preventing the camera body 103 from being damaged due to the bump.

[0023] In some embodiments, see Figure 2 、 Figure 3 and Figure 5 A weight-increasing cavity 2011 is provided in each of the two protective covers 201 , and the vehicle-mounted warning camera further includes a weight-increasing unit 40 .

[0024] The weight-increasing unit 40 includes a fluid box 401, a connecting pipe 402 and an opening and closing assembly; the fluid box 401 is fixed to the outer shell of the slide rail 101, the fluid box 401 contains high-density fluid, and the fluid box 401 is provided with a through outlet 4011; the connecting pipe 402 connects the outlet 4011 and the weight-increasing chamber 2011, and the connecting pipe 402 is a retractable hose; the opening and closing assembly is provided at the outlet 4011, for opening or closing the outlet 4011.

[0025] After the two shields 201 are closed to form a protective space, the opening and closing assembly enables the connecting pipe 402 to connect the outlet 4011 and the weight-increasing chamber 2011 . At this time, the fluid enters the weight-increasing chamber 2011 through the connecting pipe 402 , thereby increasing the weight of the shield 201 .

[0026] When the camera body 103 is falling, the weight-increasing cavity 2011 is a cavity. At this time, the weight of the protective cover 201 is light, and the gravitational acceleration of the camera body 103 is small, thereby slowing down the falling speed of the camera body 103; after the camera body 103 reaches the lowest point, the impact force generated by the falling camera body 103 will cause the camera body 103 to swing until it returns to a standstill. When the camera falls at a low speed, the impact force is low, and the number of times the camera body 103 swings is also correspondingly small, so that the camera body 103 can quickly return to a standstill after falling; when the camera body 103 falls, fluid is injected into the weight-increasing cavity 2011 to increase the weight of the protective cover 201, thereby further shortening the time required for the camera body 103 to return to a standstill.

[0027] Optionally, the connecting tubes 402 correspond to the weighted cavities 2011 one-to-one, and fluid is injected into the corresponding weighted cavities 2011 through the two connecting tubes 402. This method allows independent control of the two weighted cavities 2011, and the fluid can be injected into one or both weighted cavities 2011. The injection flow rate can also be controlled, and different amounts of fluid can be injected into the two weighted cavities 2011 to achieve a specific balance effect.

[0028] See also Figure 2 and Figure 4 Another embodiment of the connecting pipe 402 is that the connecting pipe 402 is connected to only one of the weight-increasing chambers 2011, and both protective covers 201 are provided with a slide groove 2012 connected to the weight-increasing chamber 2011, and the slide groove 2012 extends along the direction of movement of the protective cover 201; the weight-increasing unit 40 also includes a plug 403 and a second elastic member 404; the plug 403 is arranged in the slide groove 2012, and the plug 403 is slidably connected to the protective cover 201 along the extension direction of the slide groove 2012, and a first liquid hole 4031 connected to the outside is provided in the plug 403, and a second liquid hole 4032 connected to the first liquid hole 4031 is also provided on the outer wall of the plug 403; the second elastic member 404 is fixed between the plug 403 and the protective cover 201, and has a pre-tightening force that makes the plug 403 extend out of the slide groove 2012, and the second elastic member 404 is a spring rod or a spring.

[0029] When the plug 403 extends out of the chute 2012 , the second liquid hole 4032 is not connected with the weight-increasing chamber 2011 ; after the plug 403 moves into the chute 2012 , the second liquid hole 4032 is connected with the weight-increasing chamber 2011 .

[0030] The initial state of the plug 403 is in a state of extending out of the slide groove 2012. At this time, the second liquid hole 4032 is in the slide groove 2012, and the second liquid hole 4032 is not connected with the weight-increasing chamber 2011, thereby closing the weight-increasing chamber 2011; after the two protective covers 201 are closed to form a protective space, the two plugs 403 squeeze each other, causing the plug 403 to move into the slide groove 2012, thereby making the second liquid hole 4032 connected with the weight-increasing chamber 2011, and at the same time, the two first liquid holes 4031 are also aligned and connected, thereby making the two weight-increasing chambers 2011 connected, so that after fluid is injected into one of the weight-increasing chambers 2011, the fluid flows to the other weight-increasing chamber 2011 through the first liquid hole 4031 and the second liquid hole 4032, thereby increasing the weight of the protective cover 201.

[0031] In this way, the fluid amounts in the two weight-gaining cavities 2011 are forced to eventually become consistent, achieving symmetrical weight gain in the two weight-gaining cavities. The number of external pipelines is reduced, the structure is relatively simplified, and only the fluid injection at one inlet point needs to be controlled, making control simpler.

[0032] In some embodiments, see Figure 4 One of the shields 201 is provided with an embedding groove 2013, which is spaced apart on the outer periphery of the slide groove 2012, and the other shield 201 is fixed with a convex ring 2014 that is plugged and adapted to the embedding groove 2013.

[0033] After the two shields 201 are closed to form a protective space, the protruding ring 2014 is inserted into the embedding groove 2013 , thereby preventing the fluid from flowing out from the gap at the joint of the two shields 201 .

[0034] In some embodiments, see Figure 2 、 Figure 3 and Figure 5 The outer wall of the protective cover 201 is provided with a plurality of receiving grooves 2015 , and the protective cover 201 is also provided with a through groove 2016 connecting the receiving grooves 2015 and the weight-increasing cavity 2011 . The vehicle-mounted warning camera also includes a protection unit 50 .

[0035] The protection unit 50 includes an airbag 501 and a pneumatic part 502; the airbag 501 is arranged in the storage groove 2015; the pneumatic part 502 is arranged in the through groove 2016 and is connected to the airbag 501, and is used to draw the gas in the weight-increasing cavity 2011 into the airbag 501. The pneumatic part 502 is a micro diaphragm pump or a piezoelectric pump.

[0036] The opening and closing assembly includes a sealing plate 405 and a third elastic member; the sealing plate 405 is arranged at the outlet 4011, and the sealing plate 405 is rotatably connected to the fluid box 401, and the rotation axis of the sealing plate 405 is parallel to the inner wall of the fluid box 401 where the outlet 4011 is located; the third elastic member is arranged at the connection between the sealing plate 405 and the fluid box 401, and has a pre-tightening force that causes the sealing plate 405 to close the outlet 4011, and the third elastic member is a torsion spring.

[0037] It should be noted that a friction gasket is provided at the rotating shaft of the sealing plate 405. When the sealing plate 405 is opened, it needs to overcome the elastic force of the third elastic member and the friction force of the friction gasket, so that a high threshold is required for opening the sealing plate 405. When closing, the friction force helps to maintain the open state of the sealing plate 405. The sealing plate 405 will only be closed when the pressure difference is significantly reduced, ensuring that the sealing plate 405 remains open during fluid filling.

[0038] After the two shields 201 close to form a protective space, the pneumatic element 502 activates, drawing gas from the weighted cavity 2011 into the airbag 501, causing the airbag 501 to expand. This expansion causes the airbag 501 to protrude from the receiving groove 2015. The gas within the weighted cavity 2011 is drawn out, creating a pressure differential across the sealing plate 405. Initially, this pressure differential cannot overcome the elastic force of the third elastic member and the friction of the friction pad, preventing fluid from entering the weighted cavity 2011. Once the airbag 501 is fully inflated, the pneumatic element 502 closes, isolating the airbag 501 from the weighted cavity 2011. Simultaneously, the pressure differential overcomes the elastic force of the third elastic member and the friction of the friction pad, causing the sealing plate 405 to rotate, opening the outlet 4011. The fluid within the fluid box 401 flows through the connecting tube 402 into the weighted cavity 2011.

[0039] Therefore, during the suspension shaking process, the airbag 501 first contacts other objects, reducing the collision of the shield 201 and protecting the shield 201 and the camera body 103.

[0040] In some embodiments, see Figure 4 The protective cover 201 is further provided with an annular adsorption port 2017 connected to the pneumatic component 502 , and the adsorption port 2017 is provided on the outer periphery of the slide groove 2012 .

[0041] After the pneumatic part 502 is started, the gas in the adsorption port 2017 is extracted. After the two shields 201 are docked, the two aligned adsorption ports 2017 are adsorbed together, thereby enhancing the sealing between the two shields 201 and further reducing the possibility of fluid outflow.

[0042] In some embodiments, see Figure 2 A reinforcement groove 1022 is provided on the inner wall of the trigger cavity 1021, and a fourth elastic member 1023 is provided in the reinforcement groove 1022. The fourth elastic member 1023 is fixed between the inner wall of the reinforcement groove 1022 and the trigger plug 301. The fourth elastic member 1023 is retracted and expanded along the moving direction of the trigger plug 301. The fourth elastic member 1023 has a pre-tightening force that causes the trigger plug 301 to extend out of the trigger cavity 1021. The fourth elastic member 1023 is a spring rod or a spring.

[0043] A sliding cavity 3012 is provided on the outside of the trigger plug 301, and a filling block 3013 is provided in the sliding cavity 3012. The filling block 3013 is slidably connected to the trigger plug 301 along the moving direction of the trigger plug 301. One end of the traction rope 302 is fixedly connected to the inner wall of the storage cavity 10111, and the other end of the traction rope 302 is fixedly connected to the filling block 3013.

[0044] A through cavity 3014 is provided on the outer wall of the trigger plug 301 for connecting the sliding cavity 3012 and the reinforcement groove 1022. A pressure plate 3015 is provided in the through cavity 3014. The pressure plate 3015 is slidably connected to the trigger plug 301. The moving direction of the pressure plate 3015 is perpendicular to the moving direction of the trigger plug 301. A fifth elastic member 3016 is fixedly connected between the pressure plate 3015 and the trigger plug 301. The fifth elastic member 3016 is extended and retracted along the moving direction of the pressure plate 3015. The fifth elastic member 3016 has a pre-tightening force that causes the pressure plate 3015 to be retracted into the through cavity 3014. The fifth elastic member 3016 is a spring rod or a spring.

[0045] The initial state of the filling block 3013 causes both the fourth elastic member 1023 and the fifth elastic member 3016 to be in a compressed state.

[0046] After the traction rope 302 is straightened, due to the weight of the base 102 and the camera body 103 and the impact force of falling, the filling block 3013 moves toward the outside of the sliding cavity 3012 until the filling block 3013 is separated from the pressure plate 3015. The fifth elastic member 3016 releases the elastic force to make the pressure plate 3015 move into the through cavity 3014 until the pressure plate 3015 is completely retracted into the through cavity 3014. At this time, the fourth elastic member 1023 releases the elastic force to drive the trigger plug 301 to move toward the outside of the trigger cavity 1021.

[0047] The pulling rope 302 can be converted from pulling the trigger plug 301 to pulling the filling block 3013, and then the fourth elastic member 1023 is used to ensure that the trigger plug 301 can move to the outside of the trigger cavity 1021, thereby avoiding the situation where the two shields 201 cannot be closed to form a protective space after the camera body 103 falls.

[0048] The trigger plug 301 is initially positioned between the two slides 202. At this point, the trigger plug 301 is subject to the friction provided by the slides 202 and the extrusion force provided by the first elastic member 303. To control the impact force of the drop to be greater than the friction provided by the slides 202 and the extrusion force provided by the first elastic member 303, the length of the traction rope 302 must be a certain value. This converts the pull of the traction rope 302 required to pull the trigger plug 301 into pulling the filler block 3013. The movement of the filler block 3013 does not rely solely on the tension of the traction rope, but rather utilizes a combination of gravity, impact, and the elastic members. The weight and impact provide the initial kinetic energy, while the fifth elastic member 3016 and the fourth elastic member 1023 store and release energy to ensure the completion of the movement. This is similar to a "mechanical lever," converting a smaller input force (tensioning the traction rope) into a larger output force (movement of the trigger plug). In this case, the required length of the traction rope 302 is less than the length of the traction rope 303 required in the aforementioned scenario. Reducing the length of the traction rope 302 reduces the drop height, thereby reducing the possibility of collision with other objects.

[0049] In some embodiments, referring to Figure 3 The outer wall of the filling block 3013 is rotationally connected with a ball 30131, and the rotation axis of the ball 30131 is perpendicular to the moving direction of the filling block 3013. The inner wall of the sliding cavity 3012 is provided with a rolling groove 3017 which is suitable for rolling of the ball 30131.

[0050] The sliding friction between the filling block 3013 and the sliding cavity 3012 is replaced by rolling friction, further reducing the force required for displacement of the filling block 3013, thereby ensuring that the filling block 3013 can be pulled after the camera body 103 falls.

[0051] In some embodiments, the traction rope 302 is provided with a plurality of.

[0052] The plurality of traction ropes 302 share the pulling force, and single breakage can still trigger protection, while the plurality of traction ropes 302 can also reduce the degrees of freedom of the base 102 and slow down the shaking of the base 102.

[0053] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle-mounted warning camera, characterized in that: include: The monitoring unit includes a slide rail with a slide seat, a base connected to the slide seat by adsorption, and a camera body mounted on the base. The slide seat has a storage cavity on a side facing away from the slide rail, and the outer wall of the base also has a through trigger cavity. a protection unit comprising shields provided on both sides of the camera body along a first direction and slides fixedly connected to the shields in a one-to-one correspondence, the slides being slidably connected to the base along the first direction; The trigger unit includes a trigger plug arranged in the trigger cavity, a traction rope connected between the inner wall of the storage cavity and the trigger plug, and a first elastic member fixed between the slide and the inner wall of the trigger cavity, the trigger plug has an insertion portion inserted between the two slides, and the first elastic member has a pre-tightening force that makes the two slides approach each other.

2. The vehicle-mounted warning camera according to claim 1, characterized in that: A weight-increasing cavity is provided in each of the two protective covers, and the vehicle-mounted warning camera further comprises a weight-increasing unit; The weight-increasing unit comprises: a fluid box fixedly connected to the housing of the slide rail, the fluid box containing fluid and having a through outlet; a connecting pipe connecting the outlet and the weight-increasing chamber; The opening and closing component is arranged at the outlet and is used for opening or closing the outlet.

3. The vehicle-mounted warning camera according to claim 2, characterized in that: The connecting pipe is connected to only one of the weight-increasing cavities, and both of the shields are provided with a chute communicating with the weight-increasing cavity, and the chute extends along the direction in which the shield moves; The weight-increasing unit further comprises: a plug disposed in the chute, the plug being slidably connected to the shield along an extension direction of the chute, the plug having a first liquid passage hole in communication with the outside, and an outer wall of the plug further having a second liquid passage hole in communication with the first liquid passage hole; a second elastic member, fixedly connected between the plug and the shield, and having a pre-tightening force that causes the plug to extend out of the slide slot; When the plug extends out of the chute, the second liquid hole is not connected to the weight-increasing cavity; after the plug moves into the chute, the second liquid hole is connected to the weight-increasing cavity.

4. The vehicle-mounted warning camera according to claim 3, characterized in that: One of the shields is provided with an embedding groove, and the embedding groove is arranged at intervals on the outer periphery of the sliding groove. The other shield is fixed with a convex ring that is plugged and adapted to the embedding groove.

5. The vehicle-mounted warning camera according to claim 3, characterized in that: The outer wall of the shield is provided with a plurality of receiving slots, and the shield is further provided with a through slot connecting the receiving slots and the weight-added cavity, and the vehicle-mounted warning camera further includes a protection unit; The protection unit includes: an airbag, disposed in the receiving groove; The pneumatic component is arranged in the through groove and communicated with the air bag, and is used for pumping the gas in the weight-increasing cavity into the air bag.

6. The vehicle-mounted warning camera according to claim 5, characterized in that: The opening and closing assembly comprises: a sealing plate, provided at the outlet, the sealing plate being rotatably connected to the fluid box, and the rotation axis of the sealing plate being parallel to the inner wall of the fluid box where the outlet is located; The third elastic member is provided at the connection between the sealing plate and the fluid box, and has a pre-tightening force that enables the sealing plate to close the outlet.

7. The vehicle-mounted warning camera according to claim 5, characterized in that: The protective cover is further provided with an annular adsorption port which is in communication with the pneumatic component, and the adsorption port is arranged on the outer periphery of the slide groove.

8. The vehicle-mounted warning camera according to claim 1, wherein: A reinforcement groove is formed in the inner wall of the trigger cavity, and a fourth elastic member is disposed in the reinforcement groove. The fourth elastic member is fixedly connected between the inner wall of the reinforcement groove and the trigger plug. The fourth elastic member is adapted to extend and retract along the moving direction of the trigger plug. The fourth elastic member has a pre-tightening force that causes the trigger plug to extend out of the trigger cavity. A sliding cavity is formed on the outer side of the trigger plug, and a filling block is provided in the sliding cavity. The filling block is slidably connected to the trigger plug along the moving direction of the trigger plug. One end of the traction rope is fixedly connected to the inner wall of the storage cavity, and the other end of the traction rope is fixedly connected to the filling block. The outer wall of the trigger plug is provided with a through cavity connecting the sliding cavity and the reinforcement groove, and a pressure plate is provided in the through cavity. The pressure plate is slidably connected to the trigger plug, and the movement direction of the pressure plate is perpendicular to the movement direction of the trigger plug. A fifth elastic member is fixedly connected between the pressure plate and the trigger plug, and the fifth elastic member is extended and retracted along the movement direction of the pressure plate. The fifth elastic member has a pre-tightening force that causes the pressure plate to be retracted into the through cavity; Wherein, the initial state of the filling block causes the fourth elastic member and the fifth elastic member to be in a compressed state.

9. The vehicle-mounted warning camera according to claim 8, characterized in that: The outer wall of the filling block is rotatably connected to a ball, the rotation axis of the ball is perpendicular to the moving direction of the filling block, and the inner wall of the sliding cavity is provided with a rolling groove adapted to the rolling of the ball.

10. The vehicle-mounted warning camera according to claim 8, characterized in that: There are multiple traction ropes.

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