Adjustable city main road main and auxiliary entrance and exit device

Abstract

The utility model discloses an adjustable main and auxiliary entrance and exit device of an urban main road. The device comprises an adjustable entrance and exit mechanism and a retrogradation prevention mechanism, the adjustable entrance and exit mechanism comprises a rotating shaft and a telescopic anti-collision body; the two rotating shafts are respectively arranged on a main road side and an auxiliary road side of the road side sub-zone; the telescopic anti-collision body comprises a long telescopic anti-collision body and a short telescopic anti-collision body, and one rotating shaft, the long telescopic anti-collision body, the short telescopic anti-collision body and the other rotating shaft are sequentially connected to form a triangle; by adjusting the lengths of the long telescopic anti-collision bodies and the short telescopic anti-collision bodies on the main road side and the auxiliary road side, the form of the main and auxiliary entrances is adjusted. The form of the main and auxiliary entrances can be changed, and the traffic pressure is relieved; and retrogradation prevention mechanisms are arranged at the main and auxiliary entrances, so that vehicles are prevented from retrogradation at the main and auxiliary entrances, and the traffic jam at the main and auxiliary entrances is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road safety, in particular to an adjustable main and auxiliary entrance and exit device for a main urban road. Background Art

[0002] Urban trunk roads generally consist of two parts: main lanes and auxiliary roads. Traffic transfer is carried out between the main lanes and auxiliary roads through main and auxiliary entrances and exits. The main and auxiliary entrances and exits of urban trunk roads play the role of urban traffic and are key nodes for road traffic diversion and merging. The main and auxiliary entrances and exits of existing urban trunk roads are usually fixed diversion or merging main and auxiliary entrances and exits. With the continuous growth of the number of motor vehicles, especially during peak hours and during road construction, fixed main and auxiliary entrances and exits often experience traffic congestion, which restricts the traffic efficiency of urban roads. This is because when the demand for traffic changes (for example, there are many vehicles on the main lane, driving slowly, and it is necessary to change lanes to the auxiliary road in order to travel on other roads), the fixed diversion or merging main and auxiliary entrances and exits can no longer meet its changing traffic needs; on the other hand, the reverse movement of vehicles at the main and auxiliary entrances and exits is also a major cause of traffic congestion.

[0003] Moreover, in the existing research, most of the research is on the warning devices of the main and auxiliary entrances and exits, and few studies are conducted on the forms of the main and auxiliary entrances and exits. Utility Model Content

[0004] The main purpose of the utility model is to provide an adjustable main and auxiliary entrance and exit device for urban main roads, which can change the form of the main and auxiliary entrances and exits to meet the changing traffic needs of the main and auxiliary entrances and exits of urban main roads and alleviate traffic pressure; and to set an anti-reverse mechanism at the main and auxiliary entrances and exits to prevent vehicles from reversing at the main and auxiliary entrances and exits, thereby reducing traffic congestion at the main and auxiliary entrances and exits.

[0005] The technical solution adopted by the utility model is:

[0006] An adjustable main and auxiliary entrance and exit device for a city trunk road, comprising two symmetrically arranged adjustable entrance and exit mechanisms and a reverse travel prevention mechanism disposed between the two adjustable entrance and exit mechanisms;

[0007] The adjustable entrance and exit mechanism includes a rotating shaft and a telescopic bumper; there are two rotating shafts, which are respectively installed on the main road side and the auxiliary road side of the road side strip; the telescopic bumper can be compressed to the rotating shaft, and can also be stretched to a certain length, and includes a long telescopic bumper and a short telescopic bumper, one end of the long telescopic bumper is connected to one of the rotating shafts, and the other end of the long telescopic bumper is connected to one end of the short telescopic bumper; the other end of the short telescopic bumper is connected to another rotating shaft, and the rotating shaft and the telescopic bumper form a triangular structure; an entrance and exit of a parallelogram structure is formed between the two adjustable entrance and exit mechanisms;

[0008] By adjusting the length of the long telescopic bumper and the short telescopic bumper on the main road side and the auxiliary road side, the main and auxiliary entrances and exits can be adjusted.

[0009] A further solution is that the rotating shaft includes a triangular bracket, a bottom plate with holes, an upper rolling shaft, a lower rolling shaft, a rolling bearing, and a rotating housing;

[0010] The lower end of the triangular bracket is fixed on the road side strip, and the triangular bracket can be formed by pouring concrete;

[0011] The upper and lower surfaces of the perforated chassis are respectively provided with an upper rolling shaft and a lower rolling shaft; the upper end of the triangular bracket passes through the holes on the lower rolling shaft, the perforated chassis, and the upper rolling shaft in sequence;

[0012] The two ends of the upper rolling shaft and the lower rolling shaft are respectively provided with rolling bearings; the rolling bearings are in contact with the bottom plate with holes;

[0013] The lower end of the rotating shell is sleeved on the bottom plate with holes and fixed to the bottom plate with holes; the bottom plate with holes can drive the rotating shell to rotate.

[0014] A further solution is that the long telescopic anti-collision body and the short telescopic anti-collision body both include a plurality of anti-collision columns and telescopic rods; each anti-collision column corresponds to an anti-collision column base; the anti-collision column base is placed at the entrance and exit, and the anti-collision column is sleeved with the anti-collision column base;

[0015] Adjacent anti-collision columns are connected by telescopic rods, and the lengths of the long telescopic anti-collision body and the short telescopic anti-collision body are adjusted by the telescopic rods; the long telescopic anti-collision body and the short telescopic anti-collision body are also connected to the rotating shaft by the telescopic rods.

[0016] A further solution is that the lower part of the anti-collision column is a hollow structure, and the upper part can be filled with anti-collision materials. Because a number of anti-collision column bases are arranged under the anti-collision column, the anti-collision column can be fixedly connected by simply inserting the anti-collision column into the anti-collision base; the anti-collision column base is buried below the ground, and the highest point is flush with the road surface.

[0017] A further solution is that the telescopic rod comprises a large-diameter sleeve rod and a small-diameter sleeve rod;

[0018] The large diameter sleeve rod and the small diameter sleeve rod are both provided with a plurality of connection holes; when in use, the small diameter sleeve rod is inserted into the large diameter sleeve rod; the fixing bolts pass through the connection holes on the large diameter sleeve rod and the small diameter sleeve rod to fix the large diameter sleeve rod and the small diameter sleeve rod.

[0019] A further solution is that the telescopic rod passes through the rotating shaft hole on the rotating shaft and the anti-collision column hole of the anti-collision column to connect the rotating shaft and the anti-collision column together.

[0020] A further solution is that the reverse flow prevention mechanism includes a main road side reverse flow prevention unit and an auxiliary road side reverse flow prevention unit; the main road side reverse flow prevention unit is installed on the main road side of the entrance and exit; the auxiliary road side reverse flow prevention unit is installed on the auxiliary road side of the entrance and exit;

[0021] The main road side anti-reverse unit and the auxiliary road side anti-reverse unit include a fixing groove, a fixing rod, and a one-way rotator;

[0022] The fixing groove is placed at the entrance and exit, and its top surface is flush with the ground;

[0023] The two ends of the fixing rod are mounted on the groove wall of the fixing groove, and the fixing rod can rotate along the correct driving direction of the vehicle;

[0024] There are several one-way rotators, which are connected in series through fixed rods in sequence; the elastic arc-shaped barbed plate on the one-way rotator extends in the correct driving direction of the vehicle; when the vehicle is driving correctly, the one-way rotator rotates and the vehicle passes through the entrance and exit; when the vehicle is going in the opposite direction, the elastic arc-shaped barbed plate of the one-way rotator blocks the vehicle to prevent it from going in the opposite direction. Therefore, the two sets of anti-reverse units located on the main road side and the auxiliary road side cannot be activated at the same time, that is, if the main and auxiliary entrances and exits are in the main exit and auxiliary exit state, the anti-reverse unit close to the auxiliary road side is raised and activated, and the elastic arc-shaped barbed plate caters to the flow direction of vehicles from the main road to the auxiliary road, and the barbs are in the same direction as the rotation direction of the tires of the main vehicle leaving the auxiliary road, and in the opposite direction as the rotation direction of the tires of the auxiliary vehicle entering the main road. If the status of the main and auxiliary entrances and exits is auxiliary into main, the anti-reverse unit close to the main road side is raised and activated, and the elastic arc-shaped barbed plate caters to the flow direction of vehicles entering the main road from the auxiliary road. The barbs are in the same direction as the rotation direction of the tires of the auxiliary vehicles entering the main road, and in the opposite direction to the rotation direction of the tires of the main and auxiliary vehicles exiting the auxiliary road. At the same time, the anti-reverse unit that has not been raised and activated is located inside the fixed groove, and the top surface of the elastic arc-shaped barbed plate of the one-way rotator is flush with the ground to ensure that it does not hinder vehicle driving.

[0025] A further solution is that the one-way rotator comprises a cylindrical hollow shell, a first rotating shaft disposed in the cylindrical hollow shell, a movable snap-fit ​​piece, a fixed bracket, a protruding fixed snap-fit ​​piece, and an elastic circular arc-shaped barbed plate disposed on the cylindrical hollow shell;

[0026] The cylindrical hollow outer shell is sleeved on the fixing rod;

[0027] There are a plurality of elastic arc-shaped barbed plates, which are arranged in a ring on the cylindrical hollow shell, and the elastic arc-shaped barbed plates extend in the correct driving direction of the vehicle;

[0028] The first rotating shaft is arranged on the edge of the cylindrical hollow shell;

[0029] One end of the movable buckle piece is rotatably connected to the first rotating shaft, and the movable buckle piece can rotate around the first rotating shaft;

[0030] The fixing bracket is fixed on the cylindrical hollow shell and is placed behind the movable buckle piece;

[0031] There are multiple protruding fixing buckle pieces, which are arranged on the fixing rod in a ring;

[0032] When the vehicle is driving correctly, the movable buckle piece is not restricted by the fixed bracket and the raised fixed buckle piece, and the one-way rotator rotates; when the vehicle is driving in the opposite direction, the movable buckle piece is restricted by the fixed bracket and the raised fixed buckle piece, and the one-way rotator does not rotate.

[0033] A further solution is that the anti-retrograde mechanism further includes a lifting unit, which is placed in the fixed groove, and its output end is connected to the fixed rod. The lifting unit can move the fixed rod up and down, thereby moving the one-way rotator up and down. When the anti-retrograde mechanism is not used, the one-way rotator is placed inside the fixed groove, and the top surface of the elastic arc-shaped barbed plate is flush with the ground. The lifting unit can be provided with lifting power by a motor, and is used to lift and support the circular fixed rod. When rising, the fixed rod is located in the middle of the top of the fixed groove; when falling, the fixed rod is located in the fixed groove, and the top surface of the one-way rotator is flush with the ground.

[0034] A further solution is that the adjustable main and auxiliary entrance and exit devices of urban trunk roads also include an information notification unit, which adopts a guide screen and is installed on the main road side and the auxiliary road side. The information notification unit mainly includes a main road entrance and exit notification device, an auxiliary road entrance and exit notification device, an information transceiver, etc. The information sending device sends the entrance and exit status information of the main and auxiliary entrances and exits to relevant information platforms, such as Baidu, Amap and other map apps, traffic radio stations, car navigation, etc. The main road entrance and exit notification device and the auxiliary road entrance and exit notification device will notify the adjusted main and auxiliary entrance and exit status in the form of a dynamic display screen, and at the same time use the information transceiver to send the entrance and exit traffic status information to various traffic information notification platforms, effectively notifying traffic participants in advance.

[0035] The main road entrance and exit notification device and the auxiliary road entrance and exit notification device are the same device, which are respectively arranged in the main road and auxiliary road side strips in front of the main and auxiliary entrances and exits, including support rods and dynamic display screens. Among them, the support rod is an F-shaped double cantilever rod, which is used to hang the dynamic display screen; the dynamic display screen contains two parts of display content, the upper part is a graphic display, and the lower part is a text display. Among them, when the main and auxiliary entrances and exits are main exits and auxiliary exits, the graphic display on the main road side is "slow down and give way sign", and the text display is "main road exits auxiliary road, slow down!"; the graphic display on the auxiliary road side is "pay attention to the merging sign", and the text display is "main road exits auxiliary road, merge ahead!". When the main and auxiliary entrances and exits are auxiliary to main, the graphic display on the main road side is "pay attention to the merging sign", and the text display is "auxiliary road enters main road, merge ahead!"; the graphic display on the auxiliary road side is "slow down and give way sign", and the text display is "auxiliary road enters main road, slow down!".

[0036] A further solution is to install warning lights on the rotating shaft and the telescopic anti-collision body, and the rotating shaft and the telescopic anti-collision body are coated with red and white reflective paint.

[0037] The beneficial effects of the utility model are:

[0038] By setting up adjustable entrance and exit mechanisms, it is convenient to change the original fixed main and auxiliary entrance and exit forms (changing the main road out of the auxiliary road to the auxiliary road into the main road, or changing the auxiliary road into the main road to the main road out of the auxiliary road), so as to meet the changing traffic needs of the main and auxiliary entrances and exits of urban trunk roads, effectively alleviate traffic pressure, and provide solutions for urban traffic congestion nodes.

[0039] By setting up a reverse-travel prevention mechanism, vehicles are prevented from reverse-travelling at the main and auxiliary entrances and exits and obstructing traffic, thus reducing traffic congestion at the main and auxiliary entrances and exits;

[0040] Simple structure and easy installation;

[0041] The anti-reverse mechanism combined with the adjustable entrance and exit mechanism can create a good traffic order at the entrance and exit nodes, improve traffic efficiency and ensure traffic safety;

[0042] The information notification unit can adjust the traffic status information of the main and auxiliary entrances and exits at any time through dynamic display, effectively ensuring that the adjusted main and auxiliary entrance and exit status information can be notified to all traffic participants in a timely manner;

[0043] It is reusable, easy to install and disassemble, and saves cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a schematic diagram of the installation of adjustable main and auxiliary entrance and exit devices for urban trunk roads;

[0046] Figure 2 It is a schematic diagram of the installation of adjustable main and auxiliary entrance and exit devices of urban trunk roads in the state of main roads leading to auxiliary roads;

[0047] Figure 3 It is a schematic diagram of the installation of adjustable main and auxiliary entrance and exit devices of urban trunk roads when the auxiliary road enters the main road;

[0048] Figure 4 It is a structural diagram of an adjustable entrance and exit mechanism;

[0049] Figure 5 is a schematic diagram of the structure of the rotating shaft (without the rotating housing); wherein a is a front view of the rotating shaft, b is a side view of the rotating shaft, and c is a top view of the rotating shaft;

[0050] Figure 6 It is a schematic diagram of the structure of the telescopic rod;

[0051] Figure 7 It is a structural diagram of the mechanism for preventing retrograde movement;

[0052] Figure 8 It is a structural schematic diagram of the one-way rotating device of the anti-reverse unit on the main road side;

[0053] Fig. 9 It is a structural schematic diagram of the one-way rotating device of the reverse-traffic prevention unit on the auxiliary road side;

[0054] Fig.10 It is a schematic diagram of the dynamic display screen of the main and auxiliary entrances and exits;

[0055] Fig.11 It is a schematic diagram of the dynamic display screen with the main and auxiliary entrances and exits as auxiliary entrances and main entrances;

[0056] Among them: 1-1, main road; 1-2, auxiliary road; 1-3, road side strip; 1-4, main and auxiliary entrances and exits; 1-5, main road entrance and exit notification device; 1-6, auxiliary road entrance and exit notification device; 2-1 rotating shaft; 2-2, telescopic anti-collision body; 2-3, main road side anti-reverse unit, 2-4, auxiliary road side anti-reverse unit; 4-3, telescopic rod; 4-4, anti-collision column; 4-5, anti-collision column base; 4-6, rotating shaft hole; 4-7, anti-collision column hole; 5-1, upper rolling shaft; 5-2, rolling bearing; 5-3, triangular bracket; 5-4 , perforated chassis; 5-5, lower rolling axis; 6-1, large diameter sleeve rod; 6-2, small diameter sleeve rod; 6-3, connecting hole; 6-4, fixing bolt; 7-1, fixing groove; 7-2, fixing rod; 7-3, one-way rotator; 7-4, first rolling bearing; 8-1, elastic arc-shaped barbed plate; 8-2, first rotating axis; 8-3, movable snap-on piece; 8-4, fixing bracket; 8-5, raised fixing snap-on piece; 10-1, F-type double cantilever rod; 10-2, dynamic display screen; 10-3, image display; 10-4, text display. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0058] Example 1

[0059] See also Figure 1-Figure 9 An adjustable main and auxiliary entrance and exit device for a city trunk road comprises two symmetrically arranged adjustable entrance and exit mechanisms and an anti-reverse mechanism placed between the two adjustable entrance and exit mechanisms.

[0060] The adjustable entrance and exit mechanism includes a rotating shaft 2-1 and a telescopic bumper 2-2. There are two rotating shafts 2-1, which are respectively installed on the main road 1-1 side and the auxiliary road 1-2 side of the road side strip 1-3. The telescopic bumper 2-2 can be compressed to the rotating shaft 2-1, and can also be stretched to a certain length. It includes a long telescopic bumper and a short telescopic bumper. One end of the long telescopic bumper is connected to one of the rotating shafts 2-1, and the other end of the long telescopic bumper is connected to one end of the short telescopic bumper; the other end of the short telescopic bumper is connected to another rotating shaft 2-1, and the rotating shaft 2-1 and the telescopic bumper 2-2 form a triangular structure; an entrance and exit of a parallelogram structure is formed between the two adjustable entrance and exit mechanisms. By adjusting the length of the long telescopic bumper and the short telescopic bumper on the main road 1-1 side and the auxiliary road 1-2 side, the main and auxiliary entrances and exits can be adjusted. By rotating the rotating shaft 2-1, the position of the telescopic anti-collision body 2-2 can be rotated and adjusted to achieve different states of main exit and auxiliary or auxiliary entry at the main and auxiliary entrances; at the same time, the anti-retrograde mechanism ensures the traffic order of vehicles exiting or entering the main and auxiliary entrances under different changing states.

[0061] In this embodiment, the rotating shaft 2-1 includes a triangular bracket 5-3, a perforated chassis 5-4, an upper rolling shaft 5-1, a lower rolling shaft 5-5, a rolling bearing 5-2, and a rotating shell. The lower end of the triangular bracket 5-3 can be fixed on the road side strip 1-3 by pouring concrete; the upper and lower surfaces of the perforated chassis 5-4 are respectively provided with an upper rolling shaft 5-1 and a lower rolling shaft 5-5; the upper end of the triangular bracket 5-3 passes through the holes on the lower rolling shaft 5-5, the perforated chassis 5-4, and the upper rolling shaft 5-1 in sequence. The upper and lower ends of the rolling shaft 5-1 and the lower rolling shaft 5-5 are respectively provided with rolling bearings 5-2; the rolling bearings 5-2 are in contact with the perforated chassis 5-4. The lower end of the rotating shell is sleeved on the perforated chassis 5-4 and fixed to the perforated chassis 5-4; the perforated chassis 5-4 can drive the rotating shell to rotate.

[0062] Both the long telescopic anti-collision body and the short telescopic anti-collision body include a plurality of anti-collision columns 4-4 and telescopic rods 4-3. Each anti-collision column 4-4 corresponds to a anti-collision column base 4-5; the anti-collision column base 4-5 is placed at the entrance and exit, the lower part of the anti-collision column 4-4 is a hollow structure, and the upper part can be filled with anti-collision materials. The anti-collision column 4-4 is sleeved with the anti-collision column base 4-5 (because a plurality of anti-collision column bases 4-5 are arranged below the anti-collision column 4-4, it is only necessary to sleeve the anti-collision column 4-4 into the anti-collision column base 4-5 to achieve the fixation of the anti-collision column; the anti-collision column base 4-5 is buried below the ground, and the highest point is flush with the road surface.); adjacent anti-collision columns 4-4 are connected by two telescopic rods 4-3, and the length of the long telescopic anti-collision body and the short telescopic anti-collision body is adjusted by the telescopic rods 4-3; the long telescopic anti-collision body and the short telescopic anti-collision body are connected to the rotating shaft 2-1 through the telescopic rods 4-3.

[0063] In this embodiment, the telescopic rod 4-3 is formed by connecting a plurality of large diameter sleeve rods 6-1 and a plurality of small diameter sleeve rods 6-2 in series. The large diameter sleeve rod 6-1 and the small diameter sleeve rod 6-2 are both provided with a plurality of connection holes 6-3 of the same diameter; when in use, the small diameter sleeve rod 6-2 is inserted into the large diameter sleeve rod 6-1; the fixing bolt 6-4 passes through the connection holes 6-3 on the large diameter sleeve rod 6-1 and the small diameter sleeve rod 6-2 to fix the large diameter sleeve rod 6-1 and the small diameter sleeve rod 6-2. When in use, the telescopic rod 4-3 passes through the rotating shaft hole 4-6 on the rotating shaft 2-1 and the anti-collision column hole 4-7 on the anti-collision column 4-4 to connect the rotating shaft 2-1 and the anti-collision column 4-4 together.

[0064] The anti-reverse mechanism includes an anti-reverse unit 2-3 on the main road side and an anti-reverse unit 2-4 on the auxiliary road side. The anti-reverse unit 2-3 on the main road side is installed on the main road 1-1 side of the entrance and exit; the anti-reverse unit 2-4 on the auxiliary road side is installed on the auxiliary road 1-2 side of the entrance and exit. The anti-reverse unit 2-3 on the main road side and the anti-reverse unit 2-4 on the auxiliary road side include a fixed groove 7-1, a fixed rod 7-2, a one-way rotator 7-3, and a lifting unit. The fixed groove 7-1 is placed at the entrance and exit, and its top surface is flush with the ground; the two ends of the fixed rod 7-2 are installed on the groove wall of the fixed groove 7-1, and the fixed rod 7-2 can rotate unidirectionally along the correct driving direction of the vehicle; the lifting unit is placed in the fixed groove 7-1, and its output end is connected to the fixed rod 7-2, and the lifting unit can move the fixed rod 7-2 up and down. There are several one-way rotators 7-3, which are connected in series through the fixed rod 7-2 in sequence, and the one-way rotator 7- is connected to the fixed rod 7-2 through the first rolling bearing 7-4. The elastic arc-shaped barb plate 8-1 on the one-way rotator 7-3 extends in the correct driving direction of the vehicle. The lifting unit can be provided with lifting power by the motor, which is used to lift and support the fixed rod 7-2. When rising, the fixed rod 7-2 is located in the middle position of the top of the fixed groove; when lowering, the fixed rod 7-2 is located in the fixed groove, and the top surface of the one-way rotator 7-3 is flush with the ground. When the vehicle is driving correctly, the one-way rotator 7-3 rotates and the vehicle passes through the entrance and exit; when the vehicle is reversed, the elastic arc-shaped barb plate 8-1 of the one-way rotator 7-3 blocks the vehicle to prevent reverse travel. Therefore, the two groups of anti-reverse flow units located on the main road side and the auxiliary road side cannot be activated at the same time, that is, if the state of the main and auxiliary entrances and exits is main out of auxiliary, the anti-reverse flow unit 2-4 on the auxiliary road side close to the auxiliary road side is raised and activated, and the elastic arc-shaped barbed plate 8-1 caters to the flow of vehicles from the main road to the auxiliary road. The elastic arc-shaped barbed plate 8-1 is in the direction of rotation of the tires of the main vehicle out of the auxiliary road and in the opposite direction of rotation of the tires of the auxiliary vehicle entering the main road. If the state of the main and auxiliary entrances and exits is auxiliary into the main road, the anti-reverse flow unit 2-3 on the main road side close to the main road side is raised and activated, and the elastic arc-shaped barbed plate 8-1 caters to the flow of vehicles from the auxiliary road into the main road. The barbs are in the direction of rotation of the tires of the auxiliary vehicle entering the main road and in the opposite direction of rotation of the tires of the main vehicle exiting the auxiliary road; at the same time, the anti-reverse flow unit that has not been raised and activated is located inside the fixed groove 7-1, and the top surface of the elastic arc-shaped barbed plate of the one-way rotator 7-3 is flush with the ground to ensure that it does not hinder vehicle travel.

[0065] In this embodiment, the one-way rotator 7-3 includes a cylindrical hollow shell, a first rotating shaft 8-2 placed in the cylindrical hollow shell, a movable snap-in piece 8-3, a fixed bracket 8-4, a protruding fixed snap-in piece 8-5, and an elastic circular arc barb plate 8-1 placed on the cylindrical hollow shell. The cylindrical hollow shell is connected to the fixed rod 7-2 through a first rolling bearing. There are multiple elastic circular arc barb plates 8-1, which are arranged on the cylindrical hollow shell, and the elastic circular arc barb plates 8-1 extend outward (in the correct driving direction of the vehicle). The first rotating shaft 8-2 is arranged on the edge of the cylindrical hollow shell; one end of the movable snap-in piece 8-3 is rotatably connected to the first rotating shaft 8-2, and the movable snap-in piece 8-3 can rotate around the first rotating shaft 8-2. The fixed bracket 8-4 is fixed on the cylindrical hollow shell and placed behind the movable snap-in piece 8-3. There are multiple protruding fixed snap-in pieces 8-5, which are arranged on the fixed rod 7-2. When the vehicle is running normally, the movable snap-on piece 8-3 is not restricted by the fixed bracket 8-4 and the protruding fixed snap-on piece 8-5, and the one-way rotator 7-3 rotates. When the vehicle is running in reverse, the elastic arc-shaped barb plate 8-1 is opposite to the rotation direction of the vehicle tire, and the movable snap-on piece 8-3 is restricted by the fixed bracket 8-4 and the protruding fixed snap-on piece 8-5, and the one-way rotator 7-3 does not rotate, and the elastic arc-shaped barb plate 8-1 can prevent the vehicle from running in reverse.

[0066] Example 2

[0067] See also Figure 1 , Fig.10 , Fig.11 , which is different from Example 1, the adjustable main and auxiliary entrance and exit devices of urban trunk roads also include an information notification unit, which uses a guide screen and is installed on the main road 1-1 side and the auxiliary road 1-2 side. The information notification unit mainly includes a main road entrance and exit notification device 1-5, an auxiliary road entrance and exit notification device 1-6, an information transceiver, etc. The information sending device sends the entrance and exit status information of the main and auxiliary entrances and exits 1-4 to relevant information platforms, such as Baidu, Amap and other map apps, traffic radio stations, car navigation, etc. The main road entrance and exit notification device and the auxiliary road entrance and exit notification device will notify the adjusted main and auxiliary entrance and exit status in the form of a dynamic display screen, and at the same time use the information transceiver to send the entrance and exit traffic status information to various traffic information notification platforms, effectively notifying traffic participants in advance.

[0068] The main road entrance and exit notification device and the auxiliary road entrance and exit notification device are the same device, which are respectively arranged in the road side strip 1-3 between the main road and the auxiliary road in front of the main and auxiliary entrances and exits, and include support rods and dynamic display screens. Among them, the support rod is an F-shaped double cantilever rod 10-1, which is used to hang the dynamic display screen 10-2; the dynamic display screen contains two parts of display content, the upper part is a graphic display 10-3, and the lower part is a text display 10-4. Among them, when the main and auxiliary entrances and exits 1-4 are main exits and auxiliary exits, the graphic display on the main road side is "Slow down and give way sign", and the text display is "Main road exits auxiliary road, slow down!"; the graphic display on the auxiliary road side is "Pay attention to the merging sign", and the text display is "Main road exits auxiliary road, merge ahead!". When the main and auxiliary entrances and exits are from auxiliary to main, the graphic display on the main road side is "Pay attention to the merging sign", and the text display is "Auxiliary road enters the main road, merging ahead!"; the graphic display on the auxiliary road side is "Slow down and give way sign", and the text display is "Auxiliary road enters the main road, slow down and drive slowly!".

[0069] Example 3

[0070] The difference from the second embodiment is that warning lights are installed on the rotating shaft 2-1 and the telescopic anti-collision body 2-2, and the rotating shaft 2-1 and the telescopic anti-collision body 2-2 are coated with red and white reflective paint.

[0071] The utility model can solve the problem that the fixed diverging or merging entrances and exits of the main and auxiliary entrances and exits of the main roads in the city cannot meet the changing traffic demand.

[0072] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0073] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An adjustable main and auxiliary entrance and exit device for a city trunk road, characterized in that: It includes two symmetrically arranged adjustable entrance and exit mechanisms and a reverse travel prevention mechanism placed between the two adjustable entrance and exit mechanisms; The adjustable entrance and exit mechanism comprises a rotating shaft and a telescopic bumper; there are two rotating shafts, which are respectively arranged on the main road side and the auxiliary road side of the road side strip; the telescopic bumper comprises a long telescopic bumper and a short telescopic bumper, one end of the long telescopic bumper is connected to one of the rotating shafts, and the other end of the long telescopic bumper is connected to one end of the short telescopic bumper; the other end of the short telescopic bumper is connected to another rotating shaft, and the rotating shaft and the telescopic bumper form a triangular structure; An entrance and exit of a parallelogram structure is formed between two adjustable entrance and exit mechanisms; By adjusting the length of the long telescopic bumper and the short telescopic bumper on the main road side and the auxiliary road side, the main and auxiliary entrances and exits can be adjusted.

2. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 1, characterized in that: The rotating shaft comprises a triangular bracket, a bottom plate with holes, an upper rolling shaft, a lower rolling shaft, a rolling bearing, and a rotating housing; The lower end of the triangular bracket is fixed on the road side strip. The upper and lower surfaces of the perforated chassis are respectively provided with an upper rolling shaft and a lower rolling shaft; the upper end of the triangular bracket passes through the holes on the lower rolling shaft, the perforated chassis, and the upper rolling shaft in sequence; The two ends of the upper rolling shaft and the lower rolling shaft are respectively provided with rolling bearings; the rolling bearings are in contact with the bottom plate with holes; The lower end of the rotating shell is sleeved on the bottom plate with holes and fixed to the bottom plate with holes; the bottom plate with holes can drive the rotating shell to rotate.

3. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 1, characterized in that: The long telescopic anti-collision body and the short telescopic anti-collision body both include a plurality of anti-collision columns and telescopic rods; each anti-collision column corresponds to an anti-collision column base; the anti-collision column base is placed at the entrance and exit, and the anti-collision column is sleeved with the anti-collision column base; Adjacent anti-collision columns are connected by telescopic rods, and the lengths of the long telescopic anti-collision body and the short telescopic anti-collision body are adjusted by the telescopic rods; the long telescopic anti-collision body and the short telescopic anti-collision body are also connected to the rotating shaft by the telescopic rods.

4. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 3 is characterized in that: The telescopic rod comprises a large-diameter sleeve rod and a small-diameter sleeve rod; The large diameter sleeve rod and the small diameter sleeve rod are both provided with a plurality of connection holes; when in use, the small diameter sleeve rod is inserted into the large diameter sleeve rod; the fixing bolts pass through the connection holes on the large diameter sleeve rod and the small diameter sleeve rod to fix the large diameter sleeve rod and the small diameter sleeve rod.

5. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 3 is characterized in that: The telescopic rod passes through the rotating shaft hole on the rotating shaft and the anti-collision column hole of the anti-collision column to connect the rotating shaft and the anti-collision column together.

6. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 1, characterized in that: The anti-reverse mechanism includes an anti-reverse unit on the main road side and an anti-reverse unit on the auxiliary road side; The main road side anti-reverse unit is installed on the main road side of the entrance and exit; the auxiliary road side anti-reverse unit is installed on the auxiliary road side of the entrance and exit; and the two sets of anti-reverse units located on the main road side and the auxiliary road side cannot be activated at the same time; The main road side anti-reverse unit and the auxiliary road side anti-reverse unit include a fixing groove, a fixing rod, and a one-way rotator; The fixing groove is placed at the entrance and exit; The two ends of the fixing rod are mounted on the groove wall of the fixing groove, and the fixing rod can rotate along the correct driving direction of the vehicle; There are several one-way rotators, which are connected in series through fixed rods in sequence; the elastic arc-shaped barbed plates on the one-way rotators extend in the correct driving direction of the vehicle; when the vehicle is driving correctly, the one-way rotator rotates and the vehicle passes through the entrance and exit; when the vehicle is driving in the reverse direction, the elastic arc-shaped barbed plates of the one-way rotator clamp the vehicle to prevent reverse driving.

7. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 6, characterized in that: The one-way rotator comprises a cylindrical hollow shell, a first rotating shaft placed in the cylindrical hollow shell, a movable buckle piece, a fixed bracket, a protruding fixed buckle piece, and an elastic circular arc barb plate placed on the cylindrical hollow shell; The cylindrical hollow housing is sleeved on the fixed rod, and its two sides are connected to the fixed rod through rolling bearings to ensure the rotation of the one-way rotator; There are a plurality of elastic arc-shaped barbed plates, which are arranged in a ring on the cylindrical hollow shell, and the elastic arc-shaped barbed plates extend in the correct driving direction of the vehicle; The first rotating shaft is arranged on the edge of the cylindrical hollow shell; One end of the movable buckle piece is rotatably connected to the first rotating shaft, and the movable buckle piece can rotate around the first rotating shaft; The fixing bracket is fixed on the cylindrical hollow shell and is placed behind the movable buckle piece; There are multiple protruding fixing buckle pieces, which are arranged on the fixing rod in a ring; The raised fixed snap-in piece, the movable snap-in piece and the fixed bracket constitute a one-way rotating structure; when the vehicle is driving correctly, the movable snap-in piece is not restricted by the fixed bracket and the raised fixed snap-in piece, and the one-way rotator rotates; when the vehicle is driving in the opposite direction, the movable snap-in piece is restricted by the fixed bracket and the raised fixed snap-in piece, and the one-way rotator does not rotate.

8. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 6, characterized in that: The anti-retrograde mechanism also includes a lifting unit, which is placed in a fixed groove and has an output end connected to a fixed rod. The lifting unit can move the fixed rod up and down, thereby moving the one-way rotator up and down. When the anti-retrograde mechanism is not used, the one-way rotator is placed inside the fixed groove, and the top surface of the elastic arc-shaped barbed plate is flush with the ground.

9. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 1, characterized in that: The adjustable main and auxiliary entrance and exit device of the urban trunk road also includes an information notification unit, which adopts a guide screen and is installed on the main road side and the auxiliary road side.

10. The adjustable main and auxiliary entrance and exit device for urban trunk roads according to claim 1, characterized in that: Warning lights are installed on the rotating shaft and the telescopic anti-collision body, and the rotating shaft and the telescopic anti-collision body are coated with red and white reflective paint.

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