Traffic flow monitoring device for road design

Abstract

The invention discloses a traffic flow monitoring device for road design, and particularly relates to the technical field of traffic monitoring equipment, the traffic flow monitoring device comprises a camera body provided with a camera, and the traffic flow monitoring device also comprises a fixed seat mounted on the wall surface of the body; the mounting base penetrates through the fixing base, an annular sleeve is coaxially and fixedly connected to the inner cavity wall of the mounting base, an annular hole of the annular sleeve right faces the camera, a mounting cavity is defined by the annular sleeve and the inner cavity wall of the mounting base, and a glass lens is detachably mounted at the end, away from the camera, of the mounting base; and the pop-up unit is arranged on the mounting seat and is used for generating an acting force on the glass lens in a direction far away from the camera. According to the invention, the camera is protected by the glass lens, and when the glass lens is damaged and cracked, the pop-up unit acts and generates an impact force on the glass lens, so that the glass lens is subjected to the impact force, and then the middle part of the glass lens pops up in the direction far away from the camera; therefore, the glass lens does not affect the image acquisition of the camera.

Description

Technical Field

[0001] This invention belongs to the technical field of traffic monitoring equipment, specifically relating to a traffic flow monitoring device for road design. Background Technology

[0002] Traffic flow monitoring devices are used to monitor and analyze vehicle traffic conditions on roads in real time. By collecting traffic flow data and performing statistical analysis, they provide support for traffic management, road planning, and traffic safety. Traffic flow monitoring devices typically consist of sensors and cameras, and are mounted on poles at a high location or placed alongside roadside green belts.

[0003] Traffic flow monitoring devices protect their cameras with glass lenses mounted on the equipment. If the glass lens is hit by stones or hard objects, or in weather conditions with large temperature differences, it may break or crack. If the crack is large, it will affect the camera's image acquisition. In addition, if the broken glass lens is not removed, it will interfere with the normal operation of the camera. While maintenance personnel are on their way to replace or maintain the lens, there will be a gap in the camera's image acquisition during this period. This is especially true if maintenance personnel spend a long time on maintenance, which will further affect traffic flow monitoring. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a traffic flow monitoring device for road design.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: a traffic flow monitoring device for road design, including a body of the traffic flow monitoring device, the body being equipped with a camera, and further including:

[0006] A mounting base is installed on the wall surface of the machine body;

[0007] A mounting base is inserted into the fixed base. An annular sleeve is coaxially fixed to the inner wall of the mounting base. The annular sleeve's ring hole faces the camera. The annular sleeve and the inner wall of the mounting base form a mounting cavity. A glass lens is detachably mounted on the end of the mounting base away from the camera.

[0008] The pop-out unit is located on the mounting base and is used to exert a force on the glass lens in a direction away from the camera.

[0009] The above technical solution protects the camera with a glass lens. When the glass lens is damaged or cracked, the pop-out unit operates and impacts the glass lens. Under the impact force, the middle part of the glass lens is popped away from the camera, so that the glass lens will not affect the camera's image acquisition.

[0010] Furthermore, the outer casing of the machine body is equipped with an angle adjuster.

[0011] With the above technical solution, the angle adjuster is installed on an external device, and the camera's acquisition angle can be adjusted through the angle adjuster.

[0012] Furthermore, the mounting base has a lens mounting port coaxially opened at the end away from the camera, the glass lens is placed in the lens mounting port, and an end cap is detachably connected to the lens mounting port, with one end face of the end cap abutting against the glass lens.

[0013] The above technical solution involves installing the end cap inside the lens mounting port, causing the end cap to press against the glass lens, thereby allowing the glass lens to be detachably mounted on the mounting base.

[0014] Furthermore, the ejection unit includes an annular electromagnet installed in the mounting cavity, and an ejection ring is slidably fitted around the annular sleeve. The ejection ring is used in conjunction with the annular electromagnet. An elastic element is provided inside the mounting cavity, and the elastic element is located between the annular electromagnet and the ejection ring.

[0015] The above technical solution involves disconnecting the power supply to the annular electromagnet, causing the magnetic attraction of the annular electromagnet to disappear. This releases the elastic potential energy of the elastic element, causing the ejector ring to move rapidly toward the glass lens. Consequently, the ejector ring exerts a pushing force on the glass lens. Since the glass lens is already broken, when the ejector ring exerts this pushing force, the glass lens will crack at the broken point, resulting in a complete breakage of the glass lens. Under the action of the pushing force, the glass lens is ejected from the mounting base.

[0016] Furthermore, the elastic element is a spring wrapped around the annular sleeve, and the two ends of the spring elastically abut against the ejector ring and the annular electromagnet, respectively.

[0017] With the above technical solution, when the annular electromagnet generates a magnetic attraction force on the ejector ring, it will cause the ejector ring to compress the spring, and the spring will accumulate elastic potential energy. When the power supply to the annular electromagnet is disconnected, the elastic potential energy accumulated by the spring will be released, thereby enabling the ejector ring to move rapidly toward the glass lens.

[0018] Furthermore, the mounting base is provided with a tilting unit, which is used to drive the mounting base to rotate and swing the opening of the mounting base downwards when the pop-out unit is activated.

[0019] With the above technical solution, when the pop-out unit moves, it triggers the tilting unit to move. The tilting unit drives the mounting base to rotate so that the opening faces downward. This allows the glass lens fragments remaining in the inner cavity of the annular sleeve to slide off the surface of the inner cavity of the annular sleeve under the action of gravity, preventing the glass lens fragments from entering the camera and interfering with the camera's image acquisition.

[0020] Furthermore, the tilting unit includes a spiral spring wrapped around the periphery of the mounting base. The outer end of the spiral spring is fixed to the inner wall of the fixed base. The body wall is provided with a fixing ring. The fixing ring has a first inclined surface on the side facing the glass lens. The mounting base has a rotating part coaxially fixed to the side facing the fixing ring. The rotating part has a second inclined surface. The first inclined surface and the second inclined surface are in contact with each other. The mounting base is provided with a stop component, which is used to limit the rotation of the mounting base around the fixed base axis.

[0021] Through the above technical solution, the spiral spring can drive the mounting base to rotate 180°, and make the first inclined surface and the second inclined surface slide relative to each other, thereby making the thickest end of the rotating part slide into contact with the thickest end of the fixed ring, causing the rotating part to swing, and thus causing the opening of the mounting base to swing downward.

[0022] Furthermore, an inner retaining ring is fixedly sleeved around the periphery of the mounting base, an outer retaining ring is fixedly engaged with the inner cavity wall of the fixing base, and the spiral spring is engaged and installed between the inner and outer retaining rings.

[0023] The above technical solution uses an inner and outer retaining ring to limit the movement of the spiral spring, allowing it to be easily installed on the mounting base.

[0024] Furthermore, the stop assembly includes a stop pin fixed to the pop-out unit, the stop pin slidably penetrating the mounting base, and the fixing ring fixed to an ear block, the ear block having a pin hole for the stop pin to slide into.

[0025] With the above technical solution, in the initial state, the stop pin is inserted into the pin hole, thereby making the mounting base and the fixing ring relatively stationary. The spiral spring accumulates elastic potential energy, so that when the stop pin is disengaged from the pin hole, the elastic potential energy accumulated by the spiral spring is released, which can drive the mounting base to rotate. In addition, due to the setting of the spiral spring, the axial direction of the mounting base and the axial direction of the fixing base can form an angle, thereby allowing the opening of the mounting base to swing downward.

[0026] Furthermore, a limit nut is fixedly fitted around the periphery of the stop pin.

[0027] The above technical solution limits the movement of the stop pin away from the camera by the limit nut, thus preventing the pop-out ring from coming out of the mounting base.

[0028] The beneficial effects of this invention are as follows:

[0029] (1) In this invention, the camera is protected by a glass lens. When the glass lens is damaged or cracked, the pop-out unit is activated and an impact force is generated on the glass lens. Under the action of the impact force, the middle part of the glass lens is popped out in a direction away from the camera, so that the glass lens will not affect the image acquisition of the camera.

[0030] (2) In this invention, the power supply of the ring electromagnet is disconnected, so that the magnetic attraction of the ring electromagnet to the ejector ring disappears. Then, the elastic potential energy of the elastic element is released, so that the ejector ring moves rapidly toward the glass lens. This causes the ejector ring to generate a pushing force on the glass lens. Since the glass lens is already broken, when the ejector ring generates a pushing force on the glass lens, the glass lens will crack from the broken part, so that the glass lens is completely broken and ejected from the mounting base under the action of the pushing force.

[0031] (3) In this invention, the stop pin is inserted into the pin hole, thereby making the mounting base and the fixing ring relatively stationary, and the spiral spring accumulates elastic potential energy, so that when the stop pin is disengaged from the pin hole, the elastic potential energy accumulated by the spiral spring is released, which can drive the mounting base to rotate. In addition, due to the setting of the spiral spring, the axial direction of the mounting base and the axial direction of the fixing base can form an angle, thereby allowing the opening of the mounting base to swing downward. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a traffic flow monitoring device for road design in this invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of the explosive decomposition of the medium structure;

[0034] Figure 3 This is a schematic diagram showing the positional relationship between the fixed base, the mounting base, and the glass lens after assembly in this invention;

[0035] Figure 4 yes Figure 3 Schematic diagram of the explosive decomposition of the medium structure;

[0036] Figure 5 yes Figure 3 A diagram illustrating the positional relationships from a first-person perspective.

[0037] Figure 6 yes Figure 3 A diagram illustrating the positional relationships from a second-person perspective;

[0038] Figure 7 yes Figure 6 A schematic diagram showing the positional relationship of the middle section after it has been cut open;

[0039] Figure 8 yes Figure 7Enlarged schematic diagram of the local structure at point A;

[0040] Figure 9 This is a schematic diagram showing the positional relationship between the rotating part and the mounting base after assembly in this invention;

[0041] Figure 10 yes Figure 9 A schematic diagram showing the positional relationship of the structure after it has been cut open.

[0042] Reference numerals: 1. Angle adjuster; 2. Body; 3. Fixing base; 4. Glass lens; 5. End cover; 6. Camera; 7. Stop pin; 8. Inner retaining ring; 9. Ring electromagnet; 10. Pop-out ring; 11. Ring sleeve; 12. Rotating part; 13. Elastic element; 14. Spiral spring; 15. Outer retaining ring; 16. Second inclined surface; 17. Fixing ring; 18. First inclined surface; 19. Limit nut; 20. Mounting base. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] like Figures 1-10 As shown, this embodiment provides a traffic flow monitoring device for road design, including a body 2 of the traffic flow monitoring device. An angle adjuster 1 is installed on the outer shell of the body 2. The angle adjuster 1 is mounted on an external pole or road facility by screws. The body 2 is equipped with a camera 6 for acquiring road traffic flow images. A flange-shaped fixing seat 3 is mounted on the side wall of the body 2 where the camera 6 is located by screws. A tubular mounting seat 20 passes through the inner cavity of the fixing seat 3. The outer diameter of the mounting seat 20 is smaller than the inner cavity size of the fixing seat 3. A spiral spring is wound around the periphery of the mounting seat 20. Spring 14, the outer end of the spiral spring 14 is fixed to the inner cavity wall of the fixed seat 3, so that the mounting seat 20 can rotate around the axis of the fixed seat 3. At the same time, the angle between the axis of the mounting seat 20 and the axis of the fixed seat 3 can be adjusted by the up and down swing of the mounting seat 20. In addition, an inner retaining ring 8 is fixedly sleeved around the periphery of the mounting seat 20, and an outer retaining ring 15 is fixedly engaged with the inner cavity wall of the fixed seat 3. The spiral spring 14 is engaged between the inner retaining ring 8 and the outer retaining ring 15. The inner retaining ring 8 and the outer retaining ring 15 limit the spiral spring 14, so that the spiral spring 14 can be easily installed in the inner cavity of the mounting seat 20.

[0045] An annular sleeve 11 is coaxially fixed to the inner wall of the mounting base 20. The end of the annular sleeve 11 facing the camera 6 is fixed to the inner wall of the mounting base 20, and the periphery of the annular sleeve 11 and the inner wall of the mounting base 20 form a mounting cavity. In addition, the annular hole of the annular sleeve 11 faces the camera 6. A lens mounting port is opened at the end of the mounting base 20 away from the camera 6. A glass lens 4 is installed in the lens mounting port. An end cap 5 is threaded to the lens mounting port. The end cap 5 is hollow in the middle and one end face abuts against the surface of the glass lens 4, so that the glass lens 4 can be tightly installed in the lens mounting port for quick installation and removal of the glass lens 4.

[0046] An annular electromagnet 9 is fixedly installed inside the mounting cavity. The inner hole of the annular electromagnet 9 is fitted around the periphery of the annular sleeve 11. A pop-out ring 10 is slidably fitted around the periphery of the annular sleeve 11. The pop-out ring 10 works in conjunction with the annular electromagnet 9. An elastic element 13 is provided inside the mounting cavity. The elastic element 13 is located between the annular electromagnet 9 and the pop-out ring 10. Specifically, the elastic element 13 is a spring wrapped around the annular sleeve 11. The two ends of the spring elastically abut against the pop-out ring 10 and the annular electromagnet 9, respectively. The pop-out ring 10 is made of a magnetically conductive material (such as any of the materials iron, cobalt, and nickel). When the annular electromagnet 9 is energized, it generates magnetism and produces a magnetic attraction force on the pop-out ring 10, which causes the pop-out ring 10 to move towards the annular electromagnet 9. This causes the pop-out ring 10 to compress the spring, and the spring accumulates elastic potential energy. When the annular electromagnet 9 is de-energized, it loses its magnetism. At this time, the elastic potential energy accumulated by the spring is released, which causes the spring to quickly push the pop-out ring 10 to move towards the glass lens 4.

[0047] The wall of the body 2 is provided with a fixing ring 17. The fixing ring 17 has a first inclined surface 18 on the side facing the glass lens 4. The mounting base 20 is coaxially fixed with a rotating part 12 on the side facing the fixing ring 17. The rotating part 12 has a second inclined surface 16. The first inclined surface 18 and the second inclined surface 16 are connected in abutment. A connecting block is fixedly connected to the periphery of the pop-out ring 10. A stop pin 7 is fixedly inserted on the connecting block. The stop pin 7 slides through the mounting base 20. The fixing ring 17 is fixedly connected with an ear block. The ear block has a pin hole for the stop pin 7 to slide into. In the initial state, the stop pin 7 is inserted into the pin hole, so that the mounting base 20 will not rotate on its own. A limit nut 19 is fixedly sleeved on the periphery of the stop pin 7. The limit nut 19 limits the movement of the stop pin 7 away from the camera 6, preventing the pop-out ring 10 from coming out of the mounting base 20.

[0048] The working principle of this embodiment is as follows:

[0049] When the glass lens 4 is damaged, the maintenance personnel observe the image acquisition effect of the camera 6. If the image acquisition effect is poor, that is, when the broken glass lens 4 interferes with the image acquisition of the camera 6, the maintenance personnel remotely control the annular electromagnet 9 to de-energize, causing the annular electromagnet 9 to lose its magnetism. The magnetic attraction of the annular electromagnet 9 to the pop-out ring 10 disappears, thereby releasing the elastic potential energy stored in the elastic element 13 and pushing the pop-out ring 10 to move rapidly towards the glass lens 4. This causes the pop-out ring 10 to generate an impact force on the glass lens 4. Since the glass lens 4 is in a damaged state, under the action of the impact force, the glass... The degree of damage to the glass lens 4 will increase. In addition, under the impact, the glass lens 4 will be subjected to a large pushing force, so that at least the broken part of the glass lens 4 can be pushed out of the mounting base 20, and thus the glass lens 4 can be ejected. In this way, the broken part of the glass lens 4 is expanded and ejected, thereby preventing it from affecting the image acquisition of the camera 6. Although the camera 6 is not protected by the glass lens 4 at this time, the camera 6 can still perform image acquisition normally. Therefore, without affecting the image acquisition of the camera 6, the maintenance personnel have enough personnel to rush to the site to install the glass lens 4 or replace the body 2.

[0050] When the pop-out ring 10 moves toward the glass lens 4, it causes the stop pin 7 to disengage from the pin hole. At this time, the elastic potential energy stored in the spiral spring 14 is released, which in turn causes the spiral spring 14 to drive the mounting base 20 to rotate circumferentially. During the circumferential rotation, the second inclined surface 16 of the rotating part 12 slides on the first inclined surface 18 of the fixed ring 17, and the side with the maximum thickness of the rotating part 12 rotates to the side with the maximum thickness of the fixed ring 17. Since the mounting base 20 is connected to the inner wall of the fixed base 3 through the spiral spring 14, the mounting base 20 has a horizontal and vertical swing range, which allows the mounting base 20 to rotate. After rotation, the opening of the mounting base 20 can swing downward. Under the action of gravity, the fragments of the broken glass lens 4 will slide off the inner wall of the annular sleeve 11, so that the fragments of the glass lens 4 will not interfere with the image acquisition of the camera 6.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A traffic flow monitoring device for road design, comprising a body (2) of a traffic flow monitoring device, wherein the body (2) is equipped with a camera (6), characterized in that, Also includes: A fixed base (3) is installed on the wall of the body (2); Mounting base (20) is inserted through the fixed base (3). An annular sleeve (11) is coaxially fixed to the inner wall of the mounting base (20). The annular hole of the annular sleeve (11) faces the camera (6). The annular sleeve (11) and the inner wall of the mounting base (20) form a mounting cavity. A glass lens (4) is detachably installed at the end of the mounting base (20) away from the camera (6). The pop-out unit is located on the mounting base (20) and is used to generate a force on the glass lens (4) in a direction away from the camera (6).

2. The traffic flow monitoring device for road design according to claim 1, characterized in that, The outer shell of the body (2) is equipped with an angle adjuster (1).

3. The traffic flow monitoring device for road design according to claim 1, characterized in that, The mounting base (20) has a lens mounting port coaxially opened at one end away from the camera (6). The glass lens (4) is placed in the lens mounting port. The lens mounting port is detachably connected to an end cap (5). One side of the end cap (5) abuts against the glass lens (4).

4. A traffic flow monitoring device for road design according to claim 1, characterized in that, The pop-out unit includes an annular electromagnet (9) installed in the mounting cavity. The annular sleeve (11) is slidably fitted with a pop-out ring (10). The pop-out ring (10) is used in conjunction with the annular electromagnet (9). An elastic element (13) is provided in the mounting cavity. The elastic element (13) is located between the annular electromagnet (9) and the pop-out ring (10).

5. A traffic flow monitoring device for road design according to claim 4, characterized in that, The elastic element (13) is a spring wrapped around the annular sleeve (11), and the two ends of the spring elastically abut against the ejector ring (10) and the annular electromagnet (9) respectively.

6. A traffic flow monitoring device for road design according to claim 1, characterized in that, The mounting base (20) is provided with a tilting unit, which is used to drive the mounting base (20) to rotate when the pop-out unit is activated, and to make the opening of the mounting base (20) swing downward.

7. A traffic flow monitoring device for road design according to claim 6, characterized in that, The tilting unit includes a spiral spring (14) wrapped around the periphery of the mounting base (20). The outer end of the spiral spring (14) is fixed to the inner wall of the fixed base (3). The wall of the body (2) is provided with a fixing ring (17). The fixing ring (17) has a first inclined surface (18) on the side facing the glass lens (4). The mounting base (20) has a rotating part (12) coaxially fixed on the side facing the fixing ring (17). The rotating part (12) has a second inclined surface (16). The first inclined surface (18) and the second inclined surface (16) are in contact. The mounting base (20) is provided with a stop assembly. The stop assembly is used to restrict the mounting base (20) from rotating axially around the fixed base (3).

8. A traffic flow monitoring device for road design according to claim 7, characterized in that, The mounting base (20) is fixedly fitted with an inner retaining ring (8) around its periphery, and the inner cavity wall of the fixing base (3) is fixedly engaged with an outer retaining ring (15). The spiral spring (14) is engaged and installed between the inner retaining ring (8) and the outer retaining ring (15).

9. A traffic flow monitoring device for road design according to claim 7, characterized in that, The stop assembly includes a stop pin (7) fixed to the pop-out unit, the stop pin (7) slidably penetrating the mounting base (20), and the fixing ring (17) fixed with an ear block, the ear block having a pin hole for the stop pin (7) to slide into.

10. A traffic flow monitoring device for road design according to claim 9, characterized in that, The stop pin (7) is fixedly fitted with a limit nut (19) around its periphery.

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