Traffic monitoring device for traffic flow detection

Abstract

The invention relates to the technical field of traffic monitoring devices, in particular to a traffic monitoring device for traffic flow detection, which comprises a monitoring main body and a camera arranged at the front end of the monitoring main body, the device has the beneficial effects that the rear end of a shielding mechanism is slidably mounted in a third inner shrinkage cavity through a fourth spring, and the third inner shrinkage cavity is communicated with the bottom of the water storage tank, so that the front end of the shielding mechanism is flush with the front end of the monitoring main body when no rainfall occurs, the shielding mechanism can shield the monitoring main body from sunlight irradiation, and the shielding mechanism can shield the front end of the monitoring main body when rainfall occurs. Rainwater falls into a water storage tank and then enters a third inner shrinkage cavity to extrude a shielding mechanism, so that the shielding mechanism slides forwards to block the top and the two sides of the camera, water drops or water spots can be prevented from being attached to the camera, and after the rainfall stops, a fourth spring pulls the shielding mechanism to slowly slide backwards to reset, so that the camera is prevented from being damaged. Rainwater in the third inner shrinkage cavity is squeezed out through the drainage hole.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic monitoring devices, and in particular to a traffic monitoring device for detecting vehicle flow. Background Art

[0002] With the acceleration of urbanization and the continuous growth of motor vehicle ownership, problems such as traffic congestion and traffic accidents are becoming increasingly prominent. In order to effectively manage traffic flow and ensure road safety, intelligent transportation systems (ITS) have gradually become an important part of modern urban management. As one of the key components of ITS, traffic monitoring devices are essential for achieving efficient traffic management and optimization.

[0003] Traditional traffic monitoring equipment usually includes cameras installed on both sides or above the road to capture the image information of vehicles driving, so as to analyze data such as traffic volume and driving speed. However, in severe weather conditions, such as rainy days, the performance of traditional monitoring devices will be significantly affected. In particular, rainwater easily adheres to the camera lens, forming water droplets or water stains, resulting in blurred images, which in turn affects the accurate statistics of vehicle flow by the video analysis algorithm and the normal operation of functions such as license plate recognition.

[0004] Therefore, a traffic monitoring device for detecting vehicle flow is needed to solve the above problems. Summary of the invention

[0005] In order to solve the above problem, that is, to solve the problem that water droplets or water stains are easily attached to the camera of the existing traffic monitoring device, the present invention provides a traffic monitoring device for detecting vehicle flow.

[0006] A traffic monitoring device for detecting vehicle flow comprises a monitoring body and a camera installed at the front end of the monitoring body, a shielding mechanism is slidably installed on the top of the monitoring body near the front end and on both sides of the monitoring body, a connecting seat is fixedly installed on the top of the monitoring body near the rear end, a third retracted cavity is opened at the front end of the connecting seat, the rear end of the shielding mechanism slides in the third retracted cavity through a fourth spring, a drainage hole is penetrated at the rear end of the third retracted cavity, an overflow mechanism is arranged inside the drainage hole, a water tank is fixedly installed on the top of the connecting seat, the third retracted cavity is connected to the bottom of the water tank near the rear end, A water pressurizing mechanism is slidably installed inside the water tank; the rear end of the shielding mechanism is slidably installed in the third retracted cavity through the fourth spring, and the third retracted cavity is connected to the bottom of the water tank. When it does not rain, the front end of the shielding mechanism is flush with the front end of the monitoring body, and the shielding mechanism can shield the monitoring body from sunlight. When it rains, rainwater falls into the water tank and then enters the third retracted cavity, squeezing the shielding mechanism to slide forward and block the top and both sides of the camera, thereby preventing water droplets or water stains from adhering to the camera. After the rain stops, the fourth spring pulls the shielding mechanism to slowly slide backward to reset, and the rainwater in the third retracted cavity is squeezed out through the drainage hole.

[0007] Preferably, the shielding mechanism includes an upper baffle, which is slidably installed on the top of the monitoring body near the front end, and the lower surface of the upper baffle is in contact with the upper surface of the monitoring body. Side baffles are fixedly installed on both sides of the upper baffle through arc-shaped connecting plates, and the two side baffles slide on both sides of the monitoring body respectively, and a slide plate is fixedly installed on the rear end of the upper baffle. By setting the upper baffle and the side baffle to be slidable, instead of the traditional baffle fixedly installed at the front end of the monitoring body to protect the camera, not only can the camera's monitoring range on both sides be guaranteed, but also the protection area of ​​the camera can be increased during rain.

[0008] Preferably, the rear end of the slide is slidably installed in the third retracted cavity, the rear end of the slide is connected to the rear end of the third retracted cavity through the fourth spring, a third limiting groove is provided on the upper surface of the third retracted cavity, a second limiting slider is fixedly installed on the upper surface of the slide near the rear end, and the second limiting slider slides in the third limiting groove; the cooperation between the third limiting groove and the second limiting slider can prevent the slide from completely disengaging from the third retracted cavity.

[0009] Preferably, the overflow mechanism comprises an upper rubber plate and a lower rubber plate, the top end of the upper rubber plate is fixedly mounted on the upper surface of the drainage hole, the bottom end of the lower rubber plate is fixedly mounted on the lower surface of the drainage hole, the bottom end of the upper rubber plate abuts against the top end of the lower rubber plate, and a plurality of groups of the upper rubber plates and the lower rubber plates abutting against each other are fixedly mounted inside the drainage hole; by installing a plurality of groups of the upper rubber plates and the lower rubber plates abutting against each other inside the drainage hole, rainwater in the third shrinkage cavity can be slowly discharged only under a certain pressure, so that after entering the third shrinkage cavity, the rainwater will first push the slide plate to slide forward, although part of the rainwater will be discharged through the drainage hole, the rainwater that continues to enter the third shrinkage cavity will still keep the slide plate in a state of being pushed forward, and after the rainfall stops, the fourth spring pulls the slide plate to slowly return to its original position, so that the rainwater in the third shrinkage cavity is slowly discharged from the drainage hole.

[0010] Preferably, a lower drain hole is provided at a position near the rear end of the top of the third retracted cavity, an upper drain hole is provided through the bottom wall of the water storage tank, the upper drain hole is connected with the lower drain hole, a one-way valve is provided inside the upper drain hole, and a collecting cover is fixedly installed at the top of the water storage tank; rainwater in the water storage tank enters the third retracted cavity through the upper drain hole and the lower drain hole, wherein the one-way valve can prevent rainwater entering the third retracted cavity from flowing back, and the collecting cover can increase the collection area for rainwater.

[0011] Preferably, the water pressurizing mechanism includes a floating plate, which is slidably installed in the water tank through a first spring, and a first limiting slide groove is vertically opened on the inner surface of the water tank. A first limiting slider matching the first limiting slide groove is fixedly installed on the side of the floating plate, and the first limiting slider slides in the first limiting slide groove. A through hole is penetrated through the floating plate, and a movable blocking mechanism is arranged inside the through hole. A guide mechanism is arranged on the collecting cover, and the guide mechanism is connected to the movable blocking mechanism.

[0012] Preferably, the movable blocking mechanism includes a blocking plate, a side of the blocking plate is provided with a first retracted cavity, a card block is slidably installed inside the first retracted cavity by a second spring, a card groove matching the card block is provided on the surface of the through hole, a second retracted cavity is provided at the bottom of the blocking plate, an extrusion block is slidably installed inside the second retracted cavity by a third spring, the inner end of the first retracted cavity is connected with the side edge of the second retracted cavity near the bottom end through a rope threading hole, a pull rope is slidably provided inside the rope threading hole, and the two ends of the pull rope are respectively connected with the inner end of the card block and the side edge of the extrusion block near the top, and a floating ball is fixedly installed on the upper surface of the blocking plate through a connecting rod; by setting the blocking The board, the card block, the card slot and the extrusion block. When it does not rain, the floating board rises under the action of the first spring, and the card block is stuck in the card slot. When it rains, rainwater falls on the floating board and presses the floating board down. When the bottom of the floating board is about to reach the bottom of the water tank, the extrusion block is squeezed by the bottom wall of the water tank, and the card block is retracted into the first retracted cavity by the pull rope. The sealing plate rises under the action of the float, and the rainwater above the floating board flows through the through hole to the bottom of the floating board, and then flows into the third retracted cavity to squeeze the slide board. The floating board slowly floats under the action of the first spring until the card block is stuck in the card slot, and then the rainwater falls on the floating board and presses the floating board down again. The downward pressure can push the rainwater under the floating board into the third retracted cavity, thereby helping the rainwater to squeeze the slide board, so as to circulate and save energy.

[0013] Preferably, the guide mechanism includes a mounting rod, one end of the mounting rod is fixedly mounted on the inner surface of the collecting hood, the other end of the mounting rod is fixedly mounted with an outer sleeve, the top and bottom ends of the outer sleeve are both transparent ends, an inner slide rod is slidably mounted through the interior of the outer sleeve, the bottom end of the inner slide rod is connected to the float, a second limiting slide groove is vertically opened on the inner surface of the outer sleeve, a limiting slide rod is fixedly mounted on the outer surface of the inner slide rod, and the limiting slide rod slides in the second limiting slide groove; the outer sleeve and the inner slide rod can ensure that the blocking plate slides up and down in a straight line.

[0014] Preferably, a lifting rod is fixedly installed at the bottom of the monitoring body, a mounting seat is fixedly installed at the bottom end of the lifting rod, and a mounting hole is opened through the mounting seat.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention installs the rear end of the shielding mechanism in the third retracted cavity by sliding through the fourth spring, and makes the third retracted cavity communicate with the bottom of the water tank. When it does not rain, the front end of the shielding mechanism is flush with the front end of the monitoring body, and the shielding mechanism can shield the monitoring body from sunlight. When it rains, rainwater falls into the water tank and then enters the third retracted cavity, squeezing the shielding mechanism to slide forward and block the top and both sides of the camera, thereby preventing water droplets or water stains from being attached to the camera. After the rain stops, the fourth spring pulls the shielding mechanism to slide slowly backward to reset, and the rainwater in the third retracted cavity is squeezed out through the drainage hole.

[0017] 2. The present invention installs multiple groups of upper rubber plates and lower rubber plates that abut against each other inside the drainage hole, so that the rainwater in the third shrinkage cavity can be slowly discharged under a certain pressure, so that the rainwater will first push the slide plate to slide forward after entering the third shrinkage cavity. Although part of the rainwater will be discharged through the drainage hole, the rainwater that continues to enter the third shrinkage cavity will still keep the slide plate in a state of being pushed forward. After the rainfall stops, the fourth spring pulls the slide plate to slowly return to its original position, so that the rainwater in the third shrinkage cavity is slowly discharged from the drainage hole.

[0018] 3. The present invention provides a blocking plate, a block, a slot and an extrusion block. When it does not rain, the float plate rises under the action of the first spring, and the block is stuck in the slot. When it rains, rainwater falls on the float plate and presses the float plate down. When the bottom of the float plate is about to reach the bottom of the water tank, the extrusion block is squeezed by the bottom wall of the water tank, and the block is retracted into the first retracted cavity by a pull rope. The blocking plate rises under the action of the float, and the rainwater above the float plate flows through the through hole to the bottom of the float plate, and then flows into the third retracted cavity to squeeze the slide plate. The float plate slowly floats under the action of the first spring until the block is stuck in the slot, and then the rainwater falls on the float plate and presses the float plate down again. The downward pressure can push the rainwater under the float plate into the third retracted cavity, helping the rainwater to squeeze the slide plate, thereby cyclic operation and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the water storage tank structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the shielding mechanism structure of the present invention;

[0022] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the blocking plate of the present invention;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer sleeve of the present invention;

[0026] Figure 8 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0027] Fig. 9 It is a schematic diagram of the overflow mechanism structure of the present invention;

[0028] Fig.10 It is a structural schematic diagram of the shielding mechanism of the present invention when it is extended.

[0029] In the figure:

[0030] 1. Monitoring body; 2. Camera; 3. Connecting seat; 4. Third retracted cavity; 5. Fourth spring; 6. Drain hole; 7. Water storage tank; 8. Upper baffle plate; 9. Arc-shaped connecting plate; 10. Side baffle plate; 11. Slide plate; 12. Third limit slide groove; 13. Second limit slide block; 14. Upper rubber plate; 15. Lower rubber plate; 16. Lower drain hole; 17. Upper drain hole; 18. One-way valve; 19. Collecting cover; 20. Floating plate; 21. First spring; 22. First limit slide groove; 23. First limit slider; 24. Through hole; 25. Blocking plate; 26. First retracted cavity; 27. Second spring; 28. Block; 29. ​​Slot; 30. Second retracted cavity; 31. Third spring; 32. Extrusion block; 33. Rope hole; 34. Pull rope; 35. Connecting rod; 36. Float; 37. Mounting rod; 38. Outer sleeve; 39. Inner slide rod; 40. Second limit slide groove; 41. Limit slide rod; 42. Lifting rod; 43. Mounting seat; 44. Mounting hole. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0032] like Figure 1 , Figure 4 and Figure 8As shown, the embodiment of the present invention discloses a traffic monitoring device for detecting vehicle flow, comprising a monitoring body 1 and a camera 2 installed at the front end of the monitoring body 1, a shielding mechanism is slidably installed at the top of the monitoring body 1 near the front end and on both sides of the monitoring body 1, a connecting seat 3 is fixedly installed at the top of the monitoring body 1 near the rear end, a third retracted cavity 4 is opened at the front end of the connecting seat 3, the rear end of the shielding mechanism slides in the third retracted cavity 4 through a fourth spring 5, a drainage hole 6 is opened through the rear end of the third retracted cavity 4, an overflow mechanism is arranged inside the drainage hole 6, a water tank 7 is fixedly installed on the top of the connecting seat 3, the third retracted cavity 4 is connected to the bottom of the water tank 7 near the rear end, and the water tank 7 A water pressurizing mechanism is slidably installed inside the camera 2; the rear end of the shielding mechanism is slidably installed in the third retracted chamber 4 through the fourth spring 5, and the third retracted chamber 4 is connected to the bottom of the water tank 7. When it is not raining, the front end of the shielding mechanism is flush with the front end of the monitoring body 1, and the shielding mechanism can block the sunlight for the monitoring body 1. When it rains, rainwater falls into the water tank 7 and then enters the third retracted chamber 4, squeezing the shielding mechanism to slide forward and block the top and both sides of the camera 2, which can prevent water droplets or water stains from being attached to the camera 2. After the rain stops, the fourth spring 5 pulls the shielding mechanism to slowly slide backward to reset, and the rainwater in the third retracted chamber 4 is squeezed out through the drainage hole 6.

[0033] like Figure 1 and Figure 4 As shown, the shielding mechanism includes an upper baffle 8, which is slidably installed on the top of the monitoring body 1 near the front end, and the lower surface of the upper baffle 8 is in contact with the upper surface of the monitoring body 1. Side baffles 10 are fixedly installed on both sides of the upper baffle 8 through arc-shaped connecting plates 9. The two side baffles 10 slide on both sides of the monitoring body 1 respectively, and a slide plate 11 is fixedly installed on the rear end of the upper baffle 8. By setting the upper baffle 8 and the side baffle 10 to be slidable, instead of the traditional baffle fixedly installed at the front end of the monitoring body 1 to protect the camera 2, not only can the monitoring range of the camera 2 on both sides be guaranteed, but also the protection area of ​​the camera 2 can be increased when it rains.

[0034] like Figure 4 As shown, the rear end of the slide plate 11 is slidably installed in the third retracted cavity 4, the rear end of the slide plate 11 is connected to the rear end of the third retracted cavity 4 through a fourth spring 5, a third limiting groove 12 is provided on the upper surface of the third retracted cavity 4, a second limiting slider 13 is fixedly installed on the upper surface of the slide plate 11 near the rear end, and the second limiting slider 13 slides in the third limiting groove 12; the cooperation between the third limiting groove 12 and the second limiting slider 13 can prevent the slide plate 11 from completely separating from the third retracted cavity 4.

[0035] like Figure 8-9As shown, the overflow mechanism includes an upper rubber plate 14 and a lower rubber plate 15, the top end of the upper rubber plate 14 is fixedly mounted on the upper surface of the drainage hole 6, the bottom end of the lower rubber plate 15 is fixedly mounted on the lower surface of the drainage hole 6, the bottom end of the upper rubber plate 14 and the top end of the lower rubber plate 15 are butted against each other, and a plurality of groups of upper rubber plates 14 and lower rubber plates 15 that butt against each other are fixedly mounted inside the drainage hole 6; by mounting a plurality of groups of upper rubber plates 14 and lower rubber plates 15 that butt against each other inside the drainage hole 6, the rainwater in the third shrinkage cavity 4 can be slowly discharged only under a certain pressure, so that after the rainwater enters the third shrinkage cavity 4, it will first push the slide plate 11 to slide forward, although part of the rainwater will be discharged through the drainage hole 6, the rainwater that continues to enter the third shrinkage cavity 4 will still keep the slide plate 11 in a state of being pushed forward, and after the rain stops, the fourth spring 5 pulls the slide plate 11 to slowly return to its original position, so that the rainwater in the third shrinkage cavity 4 is slowly discharged from the drainage hole 6.

[0036] like Figure 1 and Figure 8 As shown, a lower drain hole 16 is provided at the top of the third retracted cavity 4 near the rear end, an upper drain hole 17 is provided through the bottom wall of the water storage tank 7, the upper drain hole 17 is connected with the lower drain hole 16, a one-way valve 18 is provided inside the upper drain hole 17, and a collecting cover 19 is fixedly installed at the top of the water storage tank 7; rainwater in the water storage tank 7 enters the third retracted cavity 4 through the upper drain hole 17 and the lower drain hole 16, wherein the one-way valve 18 can prevent the rainwater entering the third retracted cavity 4 from flowing back, and the collecting cover 19 can increase the collection area for rainwater.

[0037] like Figure 4-5 As shown, the water pressure mechanism includes a float plate 20, which is slidably installed in the water tank 7 through a first spring 21. A first limiting groove 22 is vertically opened on the inner surface of the water tank 7. A first limiting slider 23 matching the first limiting groove 22 is fixedly installed on the side of the float plate 20. The first limiting slider 23 slides in the first limiting groove 22. A through hole 24 is opened through the float plate 20, and a movable blocking mechanism is arranged inside the through hole 24. A guide mechanism is arranged on the collecting cover 19, and the guide mechanism is connected to the movable blocking mechanism.

[0038] like Figure 5As shown, the mobile blocking mechanism includes a blocking plate 25, a first retracted cavity 26 is provided on the side of the blocking plate 25, a block 28 is slidably installed inside the first retracted cavity 26 through a second spring 27, a slot 29 matching the block 28 is provided on the surface of the through hole 24, a second retracted cavity 30 is provided at the bottom of the blocking plate 25, an extrusion block 32 is slidably installed inside the second retracted cavity 30 through a third spring 31, the inner end of the first retracted cavity 26 is connected with the side of the second retracted cavity 30 near the bottom end through a rope threading hole 33, a pull rope 34 is slidably provided inside the rope threading hole 33, and the two ends of the pull rope 34 are respectively connected to the inner end of the block 28 and the side of the extrusion block 32 near the top, and a floating ball 36 is fixedly installed on the upper surface of the blocking plate 25 through a connecting rod 35; by arranging the blocking plate 25, the block 28, the slot 29 and the extrusion block 32, When it is not raining, the floating plate 20 rises under the action of the first spring 21, and the block 28 is stuck in the slot 29. When it is raining, rainwater falls on the floating plate 20 and presses the floating plate 20 down. When the bottom of the floating plate 20 is about to reach the bottom of the water tank 7, the extrusion block 32 is squeezed by the bottom wall of the water tank 7, and the block 28 is retracted into the first retracted cavity 26 by the pull rope 34. The blocking plate 25 rises under the action of the float 36, and the rainwater above the floating plate 20 flows to the bottom of the floating plate 20 through the through hole 24, and then flows into the third retracted cavity 4 to squeeze the slide plate 11. The floating plate 20 slowly floats under the action of the first spring 21 until the block 28 is stuck in the slot 29. Then the rainwater falls on the floating plate 20 and presses the floating plate 20 down again. The downward pressure can push the rainwater under the floating plate 20 into the third retracted cavity 4, helping the rainwater to squeeze the slide plate 11, thereby circulating the operation and saving energy.

[0039] like Figure 2 and Figure 7 As shown, the guide mechanism includes a mounting rod 37, one end of which is fixedly mounted on the inner surface of the collecting hood 19, and the other end of the mounting rod 37 is fixedly mounted with an outer sleeve 38, the top and bottom ends of the outer sleeve 38 are both transparent ends, an inner slide rod 39 is slidably mounted inside the outer sleeve 38, the bottom end of the inner slide rod 39 is connected to the float 36, a second limiting slide groove 40 is vertically opened on the inner surface of the outer sleeve 38, a limiting slide rod 41 is fixedly mounted on the outer surface of the inner slide rod 39, and the limiting slide rod 41 slides in the second limiting slide groove 40; the outer sleeve 38 and the inner slide rod 39 can ensure that the blocking plate 25 slides up and down in a straight line.

[0040] like Figure 1 As shown, a lifting rod 42 is fixedly installed at the bottom of the monitoring body 1, and a mounting seat 43 is fixedly installed at the bottom end of the lifting rod 42, and a mounting hole 44 is opened through the mounting seat 43.

[0041] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A traffic monitoring device for detecting vehicle flow, comprising a monitoring body (1) and a camera (2) installed at the front end of the monitoring body (1), characterized in that: A shielding mechanism is slidably mounted on the top of the monitoring body (1) near the front end and on both sides of the monitoring body (1); a connecting seat (3) is fixedly mounted on the top of the monitoring body (1) near the rear end; a third retracted cavity (4) is provided at the front end of the connecting seat (3); the rear end of the shielding mechanism slides in the third retracted cavity (4) through a fourth spring (5); a drainage hole (6) is provided through the rear end of the third retracted cavity (4); an overflow mechanism is arranged inside the drainage hole (6); a water tank (7) is fixedly mounted on the top of the connecting seat (3); a position near the rear end of the third retracted cavity (4) is connected to the bottom of the water tank (7); a water pressure mechanism is slidably mounted inside the water tank (7).

2. A traffic monitoring device for detecting vehicle flow according to claim 1, characterized in that: The shielding mechanism comprises an upper baffle (8), which is slidably mounted on the top of the monitoring body (1) near the front end, the lower surface of the upper baffle (8) contacts the upper surface of the monitoring body (1), and side baffles (10) are fixedly mounted on both sides of the upper baffle (8) via arc-shaped connecting plates (9), the two side baffles (10) slide on the two sides of the monitoring body (1) respectively, and a slide plate (11) is fixedly mounted on the rear end of the upper baffle (8).

3. A traffic monitoring device for detecting vehicle flow according to claim 2, characterized in that: The rear end of the slide plate (11) is slidably installed in the third retracted cavity (4), and the rear end of the slide plate (11) is connected to the rear end of the third retracted cavity (4) through the fourth spring (5). The upper surface of the third retracted cavity (4) is provided with a third limiting slide groove (12), and a second limiting slide block (13) is fixedly installed on the upper surface of the slide plate (11) near the rear end, and the second limiting slide block (13) slides in the third limiting slide groove (12).

4. A traffic monitoring device for detecting vehicle flow according to claim 3, characterized in that: The overflow mechanism comprises an upper rubber plate (14) and a lower rubber plate (15); the top end of the upper rubber plate (14) is fixedly mounted on the upper surface of the drainage hole (6); the bottom end of the lower rubber plate (15) is fixedly mounted on the lower surface of the drainage hole (6); the bottom end of the upper rubber plate (14) and the top end of the lower rubber plate (15) abut against each other; and a plurality of groups of the upper rubber plates (14) and the lower rubber plates (15) abutting against each other are fixedly mounted inside the drainage hole (6).

5. A traffic monitoring device for detecting vehicle flow according to claim 4, characterized in that: A lower drain hole (16) is provided at a position near the rear end of the top of the third retracted cavity (4), an upper drain hole (17) is provided through the bottom wall of the water storage tank (7), the upper drain hole (17) is connected to the lower drain hole (16), a one-way valve (18) is provided inside the upper drain hole (17), and a collecting cover (19) is fixedly installed at the top of the water storage tank (7).

6. A traffic monitoring device for detecting vehicle flow according to claim 5, characterized in that: The water pressure mechanism comprises a floating plate (20), and the floating plate (20) is slidably installed in the water tank (7) through a first spring (21); a first limiting slide groove (22) is vertically opened on the inner surface of the water tank (7); a first limiting slide block (23) matching the first limiting slide groove (22) is fixedly installed on the side of the floating plate (20); the first limiting slide block (23) slides in the first limiting slide groove (22); a through hole (24) is opened through the floating plate (20); a movable blocking mechanism is arranged inside the through hole (24); a guide mechanism is arranged on the collecting cover (19), and the guide mechanism is connected to the movable blocking mechanism.

7. A traffic monitoring device for detecting vehicle flow according to claim 6, characterized in that: The movable blocking mechanism comprises a blocking plate (25), a first retracted cavity (26) is provided on the side of the blocking plate (25), a block (28) is slidably mounted inside the first retracted cavity (26) via a second spring (27), a slot (29) matching the block (28) is provided on the surface of the through hole (24), a second retracted cavity (30) is provided at the bottom of the blocking plate (25), and a third spring (31) is slidably mounted inside the second retracted cavity (30). There is an extrusion block (32), the inner end of the first retracted cavity (26) is connected to the side of the second retracted cavity (30) near the bottom end through a rope threading hole (33), a pull rope (34) is slidably arranged inside the rope threading hole (33), and the two ends of the pull rope (34) are respectively connected to the inner end of the clamping block (28) and the side of the extrusion block (32) near the top, and a floating ball (36) is fixedly installed on the upper surface of the sealing plate (25) through a connecting rod (35).

8. A traffic monitoring device for detecting vehicle flow according to claim 7, characterized in that: The guide mechanism comprises a mounting rod (37), one end of which is fixedly mounted on the inner surface of the collecting cover (19), and an outer sleeve (38) is fixedly mounted on the other end of the mounting rod (37). The top and bottom ends of the outer sleeve (38) are both transparent ends. An inner slide rod (39) is slidably mounted inside the outer sleeve (38), and the bottom end of the inner slide rod (39) is connected to the float (36). A second limiting slide groove (40) is vertically opened on the inner surface of the outer sleeve (38), and a limiting slide rod (41) is fixedly mounted on the outer surface of the inner slide rod (39), and the limiting slide rod (41) slides in the second limiting slide groove (40).

9. A traffic monitoring device for detecting vehicle flow according to claim 8, characterized in that: A lifting rod (42) is fixedly mounted on the bottom of the monitoring body (1), a mounting seat (43) is fixedly mounted on the bottom end of the lifting rod (42), and a mounting hole (44) is formed through the mounting seat (43).

Images