Traffic flow monitoring equipment

Abstract

The embodiment of the utility model provides traffic flow monitoring equipment. The traffic flow monitoring equipment comprises a shell, a pressing plate, a rebounding mechanism, a plate body, a bracket, a counter and a trigger head, the plate body is connected with the support, the counter is connected with the trigger head, and the counter records the movement times of the trigger head; the springback mechanism comprises a first rod body, a frame, a first spring and a base plate; the first rod body is connected with the pressing plate, the first rod body penetrates through the base plate and is connected with the frame, the first spring is arranged between the base plate and the pressing plate, and the frame is connected with the plate body. By arranging the adjustable arc-shaped plate, the elastic force of the first spring can be adjusted, and when needed, the device can filter interference of light vehicles and focus on flow monitoring of private cars. The data accuracy is improved, the stability and reliability of the system are ensured, the equipment maintenance requirement is further reduced, and the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of traffic management, and specifically refers to a traffic flow monitoring device. Background Technique

[0002] With the continuous acceleration of the urbanization process, the traffic flow on the urban internal roads is increasing day by day. Especially, the ownership of private cars has risen rapidly, bringing huge pressure to urban traffic. In the urban internal roads, the traffic flow monitoring of private cars has become an important link in traffic management and planning. By accurately monitoring the traffic flow of private cars, not only can traffic conditions information be provided for traffic management departments to help formulate reasonable traffic guidance measures, but also data support can be provided for future road planning, traffic light setting, and parking space allocation. Existing traffic flow monitoring devices mainly rely on technologies such as inductive loops and video monitoring. The inductive loop counts by detecting the magnetic field change when a vehicle passes through, which is buried under the road. The video monitoring technology monitors the road through cameras and uses image processing algorithms to identify vehicles. Although it can provide relatively comprehensive traffic flow data, it is easily affected by external conditions such as weather and light, resulting in a decrease in monitoring accuracy. In addition, most existing monitoring devices rely on electronic sensors and complex algorithms. Content of the Utility Model

[0003] According to an embodiment of the present utility model, a traffic flow monitoring device is provided. It is used to solve the problem that most existing monitoring devices rely on electronic sensors and complex algorithms, and the installation and maintenance costs of the devices are relatively high.

[0004] In the first aspect of the present utility model, a traffic flow monitoring device is provided.

[0005] The traffic flow monitoring device includes a housing, a pressing plate, a rebounding mechanism, a plate body, a bracket, a counter, and a trigger head; the pressing plate is arranged above the housing, the plate body is connected to the bracket, the counter is connected to the trigger head, and the counter records the number of movements of the trigger head;

[0006] The rebounding mechanism includes a first rod body, a frame, a first spring, and a backing plate;

[0007] The first rod body is connected to the pressing plate, the first rod body passes through the backing plate and is connected to the frame, the first spring is arranged between the backing plate and the pressing plate, and the frame is connected to the plate body.

[0008] Preferably, a limiting mechanism is arranged on the housing;

[0009] The limiting mechanism includes a guard plate, a clamping block, and a clamping groove;

[0010] The guard plate is connected to the housing. The card slot is opened on the side surface of the housing. The card block is slidably connected to the card slot. The card block can be lifted and lowered in the card slot. The card block is connected to the pressing plate.

[0011] Preferably, the bracket is connected with a first clamping member, the first clamping member is attached to a second clamping member, and the second clamping member is connected to the trigger head.

[0012] Preferably, a partition is connected inside the housing, and an adjusting mechanism is arranged on the housing;

[0013] The adjusting mechanism includes two arc-shaped plates, a first bottom plate and a second bottom plate;

[0014] The two arc-shaped plates pass through the partition and are connected to the backing plate. The two arc-shaped plates are connected to the first bottom plate, and the first bottom plate is connected to the second bottom plate.

[0015] Preferably, the housing is connected with a maintenance cover, and a driving mechanism is arranged on the partition;

[0016] The driving mechanism includes a shaft body, a screw rod and a handle;

[0017] The screw rod is rotatably connected to the housing and the partition. The screw rod is connected to the shaft body, and the shaft body is connected to the handle.

[0018] Preferably, an auxiliary mechanism is arranged on the partition;

[0019] The auxiliary mechanism includes a block body, a cylinder body, a second rod body, a round wheel and a spiral groove;

[0020] The block body is connected to the shaft body, the block body is connected to the cylinder body, the cylinder body is slidably connected to the second rod body, the second rod body is rotatably connected to the round wheel, the spiral groove is opened on the partition, and the round wheel can slide in the spiral groove.

[0021] Preferably, the housing is connected with a first protective shell, the first protective shell is connected with a second protective shell, and the second protective shell is connected with a cover body.

[0022] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0023] 1. A traffic flow monitoring device provided by the present utility model records passing vehicles in a pure mechanical structure manner. The overall structure is simple, the device runs stably, has strong compressive capacity and high use reliability, and is applicable to various traffic scenarios.

[0024] 2. The traffic flow monitoring device provided by the present utility model can adjust the elastic force of the first spring by setting an adjustable arc-shaped plate. When needed, the device can filter out the interference of lighter vehicles and focus on the traffic flow monitoring of private cars. This not only improves the accuracy of data but also ensures the stability and reliability of the system, further reducing the equipment maintenance requirements and increasing the overall service life.

[0025] It should be understood that the content described in the utility model content section is not intended to limit the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understandable through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Combined with the drawings and referring to the following detailed description, the above and other features, advantages, and aspects of the embodiments of the present utility model will become more obvious. In the drawings, the same or similar reference numerals represent the same or similar elements, where:

[0027] Figure 1 Shows a three-dimensional structural schematic diagram of a traffic flow monitoring device according to an embodiment of the present utility model;

[0028] Figure 2 Shows a structural schematic diagram of a resilience mechanism of a traffic flow monitoring device according to an embodiment of the present utility model;

[0029] Figure 3 Shows a connection structural schematic diagram of a first rod body, a frame, and a first spring of a traffic flow monitoring device according to an embodiment of the present utility model;

[0030] Figure 4 Shows a connection structural schematic diagram of a backing plate, an arc-shaped plate, and a first bottom plate of a traffic flow monitoring device according to an embodiment of the present utility model;

[0031] Figure 5 Shows a connection structural schematic diagram of a partition plate, a plate body, and a frame of a traffic flow monitoring device according to an embodiment of the present utility model;

[0032] Figure 6 Shows a structural schematic diagram of a limiting mechanism of a traffic flow monitoring device according to an embodiment of the present utility model;

[0033] Figure 7 Shows a connection structural schematic diagram of a counter, a second clamping member, and a trigger head of a traffic flow monitoring device according to an embodiment of the present utility model;

[0034] Figure 8 Shows a connection structural schematic diagram of a bracket, a first clamping member, and a second clamping member of a traffic flow monitoring device according to an embodiment of the present utility model;

[0035] Figure 9 Shows a schematic connection structure of a driving mechanism of a traffic flow monitoring device according to an embodiment of the present utility model;

[0036] Figure 10 Shows a schematic connection structure of an auxiliary mechanism of a traffic flow monitoring device according to an embodiment of the present utility model;

[0037] Figure 11 Shows a schematic connection structure of a cylinder body, a second rod body and a round wheel of a traffic flow monitoring device according to an embodiment of the present utility model.

[0038] The reference numerals are as follows,

[0039] 1 - housing, 2 - pressing plate, 3 - limiting mechanism, 301 - guard plate, 302 - clamping block, 303 - clamping groove, 4 - rebounding mechanism, 401 - first rod body, 402 - frame, 403 - first spring, 404 - backing plate, 5 - adjusting mechanism, 501 - arc plate, 502 - first bottom plate, 503 - second bottom plate, 6 - driving mechanism, 602 - shaft body, 603 - screw rod, 7 - auxiliary mechanism, 701 - block body, 702 - cylinder body, 703 - second rod body, 704 - round wheel, 705 - spiral groove, 8 - bracket, 9 - first clamping member, 11 - inspection cover, 12 - partition plate, 13 - second protective shell, 14 - counter, 15 - plate body, 16 - second clamping member, 17 - trigger head, 18 - cover body, 19 - mounting rack, 20 - counterweight block, 21 - first protective shell. Detailed implementation manners

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0041] In addition, the term "and / or" in this article is only a relational term describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0042] Such as Figures 1 to 11As shown in the figure, the traffic flow monitoring device includes a housing 1, a pressing plate 2, a spring-back mechanism 4, a plate body 15, a bracket 8, a counter 14, and a trigger head 17. There are two pressing plates 2. A guardrail 10 is installed on the housing 1 to separate the two pressing plates 2. One housing 1 can monitor the vehicles passing over the two pressing plates 2. The pressing plate 2 is arranged above the housing 1. When a vehicle contacts the pressing plate 2, when the device is pre-laid, a pit for placing the housing 1 needs to be dug on the road. After the housing 1 is placed, the traffic flow can be monitored. The plate body 15 is connected to the bracket 8. The counter 14 is connected to the trigger head 17. When a private car passes over the pressing plate 2, the front wheel and the rear wheel of the private car contact the pressing plate 2 twice respectively, triggering the trigger head 17 on the counter 14 to record the number of two movements, so as to realize the statistics of the number of vehicles passing through. The trigger head 17 is the input signal terminal of the counter 14. Whenever the trigger head 17 moves once, the counter 14 records an event. After receiving the pulse signal, the internal counting logic circuit of the electronic counter will convert the signal into digital data. The counting logic circuit usually adopts binary technology and counts and stores through a counter chip (such as CD4017, 74LS193, etc.). This part is responsible for accurate calculation and avoiding counting loss. The counting result is usually displayed through a display (such as an LED display or an LCD screen), and can also store the data to an external device through a data transmission interface. The process of the above counter 14 realizing counting is the prior art and will not be elaborated here. The spring-back mechanism 4 includes a first rod body 401, a frame 402, a first spring 403, and a backing plate 404. The first rod body 401 is connected to the pressing plate 2. The backing plate 404 is used to support the first rod body 401 and cooperate with the first spring 403. After the vehicle passes and moves away, the first spring 403 can provide a spring-back force to make the pressing plate 2 return to the initial state, ensuring that the device can be reused. The frame 402 is connected to the plate body 15.

[0043] In this embodiment, first, a suitable location on the urban internal road is selected, and a pit capable of accommodating the housing 1 is dug, ensuring that the housing 1 is flush with the road surface after being placed. The housing 1 is placed in the pit and its level is adjusted to ensure that the device will not shift or be damaged when a vehicle passes by. Next, the pressure plate 2 is installed above the housing 1. The first rod 401 passes through the backing plate 404 and is fixedly connected to the frame 402. At the same time, the first spring 403 is installed between the backing plate 404 and the pressure plate 2 to provide the resilience after the vehicle passes by, so that the pressure plate 2 can return to the initial state, ensuring that the device can be reused. After the installation is completed, the counter 14 is connected to the trigger head 17. The trigger head 17 serves as the input signal terminal. When the front and rear wheels of the vehicle pass over the pressure plate 2, the trigger head 17 is indirectly triggered through the bracket 8, and the counting can be triggered twice. After receiving the signal, the counter 14 records and displays the number of passing vehicles, realizing the statistics of traffic flow. By setting the resilience mechanism 4, the sensitivity and service life of the device can be effectively improved. At the same time, through the counting function of the counter 14, the number of passing vehicles can be recorded. After a pit is opened on the urban internal road and the housing 1 is placed, there is no need to repair and supply power to the mechanical structure in the housing 1, saving the use cost of the device and enabling long-term continuous monitoring. For example, when it is necessary to monitor the traffic flow during the evening rush hour, the value on the counter 14 before the evening rush hour can be recorded. After the evening rush hour ends, the value on the counter 14 is recorded. Half of the difference between the two is the traffic flow of private cars during the evening rush hour. This device uses a pure mechanical structure to record passing vehicles. The overall structure is simple, the device runs stably, has strong compressive ability and high reliability in use, and is applicable to a variety of traffic scenarios.

[0044] Further, a limiting mechanism 3 is provided on the housing 1. The limiting mechanism 3 includes a guard plate 301, a clamping block 302 and a clamping groove 303. The guard plate 301 is connected to the housing 1. The guard plate 301 is used to protect the side of the clamping groove 303 to prevent impurities from entering the clamping groove 303 and affecting the up and down movement of the clamping block 302. The clamping groove 303 is opened on the side of the housing 1. The clamping block 302 is slidably connected to the clamping groove 303. The clamping block 302 can move up and down in the clamping groove 303. The distance between the housing 1 and the pressure plate 2 is the maximum movement distance of the pressure plate 2, that is, the maximum distance of sinking when a vehicle passes by. The clamping block 302 can lift in the clamping groove 303. The clamping groove 303 limits the maximum upward movement distance of the clamping block 302, limits the maximum height of the pressure plate 2, and the clamping block 302 is connected to the pressure plate 2.

[0045] It is worth noting that when the vehicle passes by, the wheel passes over the pressure plate 2, and the pressure plate 2 moves downward for counting. At the same time, the clamping block 302 moves in the clamping groove 303, which can limit the pressure plate 2 and improve the stability of the pressure plate 2 during movement. The guard plate 301 prevents impurities such as dust and dirt from entering the clamping groove 303, avoiding affecting the normal lifting movement of the clamping block 302, thereby ensuring the normal operation of the equipment. It not only improves the durability of the equipment but also reduces the frequency of daily maintenance, ensuring the reliability of the equipment under complex road conditions.

[0046] Furthermore, the bracket 8 is connected with a first clamping member 9, the first clamping member 9 is attached to a second clamping member 16, and the second clamping member 16 is connected with the trigger head 17. The first clamping member 9 is in the shape of a flat plate, and the second clamping member 16 is in the shape of a rectangular frame with two vertically extending parts on both sides. The middle part is recessed downward to form a relatively large notch, similar to the outline of the letter "U". The first clamping member 9 in the shape of a flat plate can be pushed into the second clamping member 16 from the front-back direction. During the lifting process of the first clamping member 9, it can drive the second clamping member 16 to move up and down, and then drive the trigger head 17 to move to record the trigger times. The above structure saves the assembly time.

[0047] It is worth noting that through the cooperation of the first clamping member 9 and the second clamping member 16, the assembly process is simplified. Since the first clamping member 9 is in the shape of a flat plate, it can be directly pushed into the second clamping member 16 with a "U"-shaped notch from the front-back direction without additional complex installation steps, saving the assembly time.

[0048] Furthermore, a partition 12 is connected inside the housing 1, and a mounting bracket 19 is provided on the partition 12 for mounting a counterweight 20 to make the forces on both sides of the partition 12 uniform. An adjusting mechanism 5 is provided on the housing 1. The adjusting mechanism 5 includes two arc-shaped plates 501, a first bottom plate 502, and a second bottom plate 503. The two arc-shaped plates 501 pass through the partition 12 and are connected with the backing plate 404, and the arc-shaped plates 501 can move up and down relative to the partition 12. The two arc-shaped plates 501 are connected with the first bottom plate 502, and the first bottom plate 502 is connected with the second bottom plate 503.

[0049] It is worth noting that the user can control the elastic deformation of the first spring 403 by adjusting the height of the two arc-shaped plates 501. When the arc-shaped plate 501 moves upward, it drives the backing plate 404 to rise together. During the rising process of the backing plate 404, the distance between it and the pressing plate 2 is shortened, thereby compressing the first spring 403 and increasing its elastic force. In this way, the compressive capacity of the first spring 403 can be effectively improved, increasing the sensitivity of the pressing plate 2 when bearing pressure, and further eliminating the triggering influence of lighter electric vehicles and bicycles on the device, ensuring that the traffic flow monitoring data only targets private cars and guaranteeing the accuracy of the data. In addition, the frame 402 is arranged through the inner sides of the two arc-shaped plates 501. The movement of the arc-shaped plate 501 is independent of the movement of the frame 402 and will not interfere with each other. When it is necessary to monitor the flow of electric vehicles while monitoring the traffic flow, the arc-shaped plate 501 can be controlled to move downward. By setting the adjustable arc-shaped plate 501, the elastic force of the first spring 403 can be adjusted. When needed, the device can filter out the interference of lighter vehicles and focus on the traffic flow monitoring of private cars. This not only improves the accuracy of the data but also ensures the stability and reliability of the system, further reducing the equipment maintenance requirements and increasing the overall service life.

[0050] Furthermore, the housing 1 is connected with a maintenance cover 11, and the maintenance cover 11 is arranged directly above the handle 601. A driving mechanism 6 is arranged on the partition plate 12. The driving mechanism 6 includes a shaft body 602, a screw rod 603, and a handle 601. The screw rod 603 is rotatably connected to the housing 1. A bearing can be arranged between the screw rod 603 and the housing 1 to ensure the stability of the screw rod 603 during rotation. The screw rod 603 is rotatably connected to the partition plate 12, the screw rod 603 is connected to the shaft body 602, and the shaft body 602 is connected to the handle 601. The handle 601 facilitates the user to rotate the shaft body 602.

[0051] It is worth noting that when it is necessary to adjust the position of the arc-shaped plate 501, the maintenance cover 11 can be first removed to expose the driving mechanism 6 inside the device. After the maintenance cover 11 is removed, the operator can manually rotate the handle 601 inside the housing 1 to drive the shaft body 602 connected to it to rotate. The shaft body 602 is connected to the screw rod 603. When the shaft body 602 rotates, the screw rod 603 also rotates synchronously. The rotation of the screw rod 603 drives the first bottom plate 502 and the second bottom plate 503 to move up and down through the thread transmission method, thereby driving the arc-shaped plate 501 to make corresponding vertical adjustments. Through the thread transmission method of the screw rod 603, not only can the height of the arc-shaped plate 501 be adjusted, but also the stability and reliability of the arc-shaped plate 501 during the lifting and lowering process can be effectively ensured, avoiding the offset or jamming phenomenon caused by unstable movement, improving the adjustment accuracy of the device and the operation safety. At the same time, the entire adjustment process is simple and easy to operate, without the need for additional tools, facilitating on-site operation and maintenance.

[0052] Further, an auxiliary mechanism 7 is provided on the partition plate 12. The auxiliary mechanism 7 includes a block 701, a cylinder 702, a second rod 703, a round wheel 704, and a spiral groove 705. The block 701 is connected to the shaft body 602, the block 701 is connected to the cylinder 702, the cylinder 702 is slidably connected to the second rod 703, the second rod 703 can slide relative to the cylinder 702, the second rod 703 is rotatably connected to the round wheel 704, the spiral groove 705 is formed on the partition plate 12, and the spiral groove 705 is spirally arranged on the partition plate 12. The round wheel 704 can slide in the spiral groove 705.

[0053] It should be noted that during the rotation of the shaft body 602, the cylinder 702 connected thereto rotates synchronously. The cylinder 702 drives the second rod 703 to rotate synchronously. During the movement of the second rod 703, the connected round wheel 704 slides along the guide rail system provided with the spiral groove 705. Due to the design of the spiral groove 705, the trajectory of the round wheel 704 in the groove can reflect the actual position of the arc-shaped plate 501. Since relative movement is possible between the second rod 703 and the cylinder 702, this structure enables the rotation of the cylinder 702 not to affect the movement of the second rod 703 in the spiral groove 705. By observing the specific position of the round wheel 704 in the spiral groove 705, the operator can intuitively judge the current height and position of the arc-shaped plate 501, avoiding errors caused by blind operation.

[0054] Further, the housing 1 is connected to a first protective shell 21, the first protective shell 21 is connected to a second protective shell 13, and the second protective shell 13 is connected to a cover 18.

[0055] It should be noted that the first protective shell 21 and the second protective shell 13 are used to protect structures such as the bracket 8 and the plate body 15. A part of the first protective shell 21 and the second protective shell 13 is buried in the road tunnel. The cover 18 is detachably designed with the second protective shell 13, and the numerical change of the counter 14 can be read after removing the cover 18.

[0056] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A traffic flow monitoring device, characterized in that, It includes a housing (1), a pressing plate (2), a spring-back mechanism (4), a plate body (15), a bracket (8), a counter (14) and a trigger head (17); the pressing plate (2) is arranged above the housing (1), the plate body (15) is connected to the bracket (8), the counter (14) is connected to the trigger head (17), and the counter (14) records the number of movements of the trigger head (17). The spring-back mechanism (4) includes a first rod body (401), a frame (402), a first spring (403) and a backing plate (404). The first rod body (401) is connected to the pressing plate (2), the first rod body (401) passes through the backing plate (404) and is connected to the frame (402), the first spring (403) is arranged between the backing plate (404) and the pressing plate (2), and the frame (402) is connected to the plate body (15).

2. The traffic flow monitoring device according to claim 1, characterized in that, A limiting mechanism (3) is arranged on the housing (1). The limiting mechanism (3) includes a guard plate (301), a clamping block (302) and a clamping groove (303). The guard plate (301) is connected to the housing (1), the clamping groove (303) is opened on the side surface of the housing (1), the clamping block (302) is slidably connected to the clamping groove (303), the clamping block (302) can move up and down in the clamping groove (303), and the clamping block (302) is connected to the pressing plate (2).

3. The traffic flow monitoring device according to claim 1, characterized in that, The bracket (8) is connected with a first clamping member (9), the first clamping member (9) is attached to a second clamping member (16), and the second clamping member (16) is connected to the trigger head (17).

4. The traffic flow monitoring device according to claim 2, characterized in that, A partition plate (12) is connected inside the housing (1), and an adjusting mechanism (5) is arranged on the housing (1). The adjusting mechanism (5) includes two arc-shaped plates (501), a first bottom plate (502) and a second bottom plate (503). The two arc-shaped plates (501) pass through the partition plate (12) and are connected to the backing plate (404), the two arc-shaped plates (501) are connected to the first bottom plate (502), and the first bottom plate (502) is connected to the second bottom plate (503).

5. The traffic flow monitoring device according to claim 4, wherein, The housing (1) is connected with a maintenance cover (11), and a driving mechanism (6) is arranged on the partition plate (12). The driving mechanism (6) includes a shaft body (602), a screw (603) and a handle (601). The screw (603) is rotatably connected to the housing (1), the screw (603) is rotatably connected to the partition plate (12), the screw (603) is connected to the shaft body (602), and the shaft body (602) is connected to the handle (601).

6. The traffic flow monitoring device according to claim 5, characterized in that, An auxiliary mechanism (7) is arranged on the partition plate (12). The auxiliary mechanism (7) includes a block body (701), a cylinder body (702), a second rod body (703), a round wheel (704) and a spiral groove (705). The block (701) is connected to the shaft body (602), the block (701) is connected to the cylinder body (702), the cylinder body (702) is slidably connected to the second rod body (703), the second rod body (703) is rotatably connected to the round wheel (704), the spiral groove (705) is formed on the partition plate (12), and the round wheel (704) can slide in the spiral groove (705).

7. The traffic flow monitoring device according to any one of claims 1 to 6, characterized in that, The housing (1) is connected with a first protective shell (21), the first protective shell (21) is connected with a second protective shell (13), and the second protective shell (13) is connected with a cover body (18).

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