Emergency management night warning device

Abstract

The utility model relates to emergency equipment technical field, concretely relates to a kind of emergency management night warning device, including cone and reflective tape, the cone includes inner cone and the outer cone of the outer cone of being set to the inner cone, the outer cone is coaxially rotating cooperation with inner cone;The reflective tape is around and is set on the outer cone surface of outer cone, and fixedly connected;The outer cone bottom end is connected with wind deflector, and the wind deflector can be driven outer cone rotates on inner cone under wind power blows down.To solve the problems that prior art warning cone is easily tilted under the airflow generated by high-speed vehicle or strong wind environment, leading to the failure of warning function, and even possible to be blown down and rolled to the driving lane, causing secondary accidents.

Description

Technical Field

[0001] This utility model relates to the field of emergency equipment technology, specifically to an emergency management nighttime warning device. Background Technology

[0002] Traffic cones (warning cones) are widely used as temporary warning facilities in road traffic and construction areas. They are mainly used to guide traffic flow, mark dangerous areas or construction areas, and are also rapidly deployed in emergency scenarios (such as traffic accidents, road collapses, sudden obstacles, etc.) to provide temporary warnings and traffic control. Traditional warning cones are usually made of PVC or rubber materials and use red and white or yellow and black ring-shaped reflective strips, which rely on the retroreflection of the reflective strips under vehicle headlights to achieve nighttime warning.

[0003] However, most existing warning cones have poor wind resistance. Because the cones are relatively light, they are prone to tipping over in the airflow generated by passing high-speed vehicles or in strong winds, causing the warning function to fail. They may even be blown over and rolled onto the roadway, causing secondary accidents. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an emergency management night warning device to solve the problem that existing warning cones are prone to tipping over in the airflow or strong winds generated by passing high-speed vehicles, causing the warning function to fail, or even being blown over and rolled onto the driving lane, causing secondary accidents.

[0005] This utility model is achieved through the following technical solution:

[0006] An emergency management night warning device includes a cone and a reflective strip. The cone includes an inner cone and an outer cone sleeved outside the inner cone. The outer cone and the inner cone are coaxially rotatably coupled.

[0007] The reflective strip is wrapped around the outer conical surface of the outer cone and is fixedly connected;

[0008] The bottom end of the outer cone is connected to a wind baffle, which can drive the outer cone to rotate on the inner cone under the influence of wind.

[0009] Furthermore, multiple wind deflectors are provided, and the multiple wind deflectors are evenly arranged around the circumference of the outer cone.

[0010] Furthermore, the outer conical cylinder has a boss at the bottom of its outer circular surface, and one end of the boss extends radially away from the outer conical cylinder.

[0011] A sleeve adapted to the boss is fixedly connected to the wind deflector. The sleeve is fitted over the boss and is connected in a detachable manner.

[0012] Furthermore, the boss is cylindrical, and the sleeve is fitted over the boss and rotates coaxially.

[0013] A torsion spring is provided between the sleeve and the boss. One end of the torsion spring is fixedly connected to the sleeve, and the other end is fixedly connected to the boss. When the torsion spring is in its naturally extended state, the wind deflector and the axis of the outer cone are coplanar.

[0014] Furthermore, the boss is prismatic in shape, and the sleeve is fitted over the boss and slides along the outer conical cylinder with a single degree of freedom.

[0015] Furthermore, the sleeve has a hollow structure with an opening at one end facing outwards from the conical cylinder, and a connecting rod is provided inside the sleeve;

[0016] One end of the connecting rod is coaxially and fixedly connected to the closed end of the sleeve, and the other end extends into the outer cone cylinder through the boss along the radial direction of the outer cone cylinder, and a pin is inserted into the end of the connecting rod along the radial direction of the connecting rod.

[0017] Furthermore, the outer cone has a hollow structure with openings at both the top and bottom, and the top of the inner cone extends from the opening at the top of the outer cone.

[0018] A pressure ring is provided above the outer cone. The opening size at the top of the outer cone is smaller than the outer dimensions of the pressure ring. The pressure ring is detachably and fixedly connected to the top of the inner cone.

[0019] Furthermore, the top end of the inner cone is provided with an external thread, and the pressure ring is sleeved on the outside of the top end of the inner cone and connected by a threaded engagement.

[0020] Furthermore, the reflective strip is closely fitted to the outer conical surface of the outer cone and extends spirally along the axial direction of the outer cone.

[0021] Furthermore, the reflective strip includes a first strip body and a second strip body, wherein the first strip body is annular and is sleeved on the outside of the outer cone.

[0022] The second belt is elongated and extends upward at an angle along the conical surface of the outer cone.

[0023] The beneficial effects of this utility model are as follows:

[0024] This emergency management night warning device converts the thrust exerted by the crosswind on the wind deflector into the rotational force of the outer cone, causing the outer cone to rotate on top of the inner cone. This relieves part of the thrust exerted by the wind and uses angular momentum to resist airflow disturbances, improving its anti-tipping ability and reducing the risk of the cone being blown over.

[0025] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0027] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0028] Figure 3 This is a top view of Embodiment 1 of the present utility model;

[0029] Figure 4 for Figure 3 Sectional view of AA;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0031] Figure 6 This is a three-dimensional structural diagram of the inner cone cylinder in Embodiment 1 of this utility model;

[0032] Figure 7 This is a three-dimensional structural diagram of the outer cone cylinder in Embodiment 1 of this utility model;

[0033] Figure 8 This is a three-dimensional structural diagram of the windbreak plate in Embodiment 1 of this utility model;

[0034] Figure 9 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0035] Figure 10 This is a three-dimensional structural diagram of the outer cone cylinder in Embodiment 2 of this utility model;

[0036] Figure 11 This is a three-dimensional structural diagram of the wind deflector in Embodiment 2 of this utility model.

[0037] In the diagram: 1. Inner cone; 2. Outer cone; 21. Boss; 3. Reflective strip; 31. First strip body; 32. Second strip body; 4. Wind deflector; 41. Sleeve; 42. Connecting rod; 43. Pin; 5. Torsion spring; 6. Pressure ring. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0043] Example 1

[0044] Please see Figure 1-5 This utility model provides a technical solution: an emergency management night warning device, including a cone and a reflective strip 3. The cone includes an inner cone 1 and an outer cone 2 sleeved outside the inner cone 1. The outer cone 2 and the inner cone 1 are coaxially rotatably coupled.

[0045] The reflective strip 3 is wrapped around the outer conical surface of the outer conical cylinder 2 and is fixedly connected;

[0046] The bottom end of the outer cone 2 is connected to a wind baffle 4, which can drive the outer cone 2 to rotate on the inner cone 1 under the influence of wind.

[0047] In this scheme, the thrust exerted by the lateral wind on the wind deflector 4 is converted into the rotational power of the outer cone 2, causing the outer cone 2 to rotate on the inner cone 1, thus relieving part of the thrust exerted by the wind and using angular momentum to resist airflow disturbance, thereby improving the anti-tipping ability and reducing the risk of the cone being blown over.

[0048] Among them, a connecting component with low friction, such as a bearing, can be installed between the outer cone cylinder 2 and the inner cone cylinder 1. Multiple bearings of different diameters are installed on the outer cone surface of the inner cone cylinder 1 to support the outer cone cylinder 2. The installation positions are as follows: Figure 4 As shown, the outer cone 2 and the inner cone 1 are rotatably connected, and under the action of the bearing, the rotational resistance (friction) is small, allowing it to rotate freely.

[0049] The inner cone 1 has a base plate at its bottom end, which protrudes beyond the bottom end of the outer cone 2 and is used to contact the ground, so that the cone can be placed stably on the ground. The base plate is made of metal material (such as cast iron) and can provide counterweight to the bottom of the inner cone 1, so that the overall center of gravity of the cone is lower and the stability is higher.

[0050] The wind deflector 4 can be fixedly installed on the outer cone 2 by welding, bonding, bolting, or other methods. One side of the wind deflector 4 is connected to the outer cone 2, and the other end extends radially away from the outer cone 2. The wind deflector 4 can be set vertically (perpendicular to the ground) to increase the windward area, causing the outer cone 2 to rotate rapidly (or slightly), thus improving the cone's stability. Alternatively, the wind deflector 4 can be set at an acute angle (the angle between the wind deflector 4 and the ground is acute). When horizontal wind pushes and compresses the wind deflector 4, it is subjected to a thrust along the tangent of the outer cone 2's circumference and a downward pressure in the vertical direction, thereby improving the cone's stability. Furthermore, the structure of the wind deflector 4 is not limited to a flat plate. It can be designed to resemble the blades of a vertical axis wind turbine (with the rotation axis perpendicular to the ground), allowing it to rotate under wind at any angle in the horizontal direction.

[0051] The reflective strip 3 can be made of microprism reflective film (such as 3M Diamond grade) or glass microsphere reflective film (such as engineering grade). When headlights from a moving vehicle or streetlights shine onto the reflective strip 3, the light is reflected back towards the vehicle using the principle of reflection, increasing the attention of drivers and passengers and achieving the purpose of warning. Both warning cones and reflective strips 3 are existing mature technologies; their specific reflection principles and methods of reflecting light towards vehicles will not be elaborated upon here.

[0052] When the outer cone 2 rotates, its angular momentum direction remains fixed along the axis. When encountering lateral wind disturbances, according to the law of conservation of angular momentum, the system generates a precession torque perpendicular to the direction of the disturbance, causing the cone to deflect around its vertical axis instead of tipping over. This dynamic response converts the impact energy of the lateral wind force into the precession rotation of the cone, significantly reducing the risk of direct tipping. Simultaneously, the centrifugal force field generated by the rotation causes the upper mass of the cone to expand outwards, further lowering the effective center of gravity; this dual effect enhances wind resistance stability.

[0053] In this embodiment, multiple wind deflectors 4 are provided, and the multiple wind deflectors 4 are evenly arranged around the circumference of the outer cone 2.

[0054] In this plan, such as Figure 1 As shown, there are five wind deflectors 4 (an odd number). Under the action of horizontal wind force, it is difficult for them to achieve balance on both sides, so that the outer cone 2 will continuously rotate in one direction or reciprocate within a small range, thus achieving the effect of turbulence and force dissipation.

[0055] Meanwhile, the wind deflector 4 can increase the weight at the bottom of the cone, lowering the cone's center of gravity and improving the cone's wind resistance to a certain extent.

[0056] In use, the cone is placed stably on one side of the road. When a horizontal crosswind (natural wind or airflow generated by vehicle movement) passes by, the five wind deflectors 4 move, converting wind energy into kinetic energy for the outer cone 2 to rotate. Furthermore, as protruding structures on the outer cone surface, the wind deflectors 4, when the cone is tilted by wind, ensure that two adjacent wind deflectors 4 contact the ground, supporting the cone and effectively limiting its rotation on the ground, thus reducing the risk of the cone being blown onto the roadway and causing secondary accidents.

[0057] In this embodiment: the bottom end of the outer circular surface of the outer cone 2 is provided with a boss 21, and one end of the boss 21 extends radially away from the outer cone 2;

[0058] A sleeve 41 adapted to the boss 21 is fixedly connected to the wind deflector 4. The sleeve 41 is sleeved on the outside of the boss 21 and is connected in a detachable manner.

[0059] In this plan, such as Figure 2 As shown, the sleeve 41 is disposed on the bottom edge of the wind baffle 4 and is sleeved on the outside of the boss 21. It can be fixedly installed by bolt locking. By inserting the threaded end of the bolt through the side wall of the sleeve 41 into the sleeve 41 and abutting against the outer surface of the boss 21, the friction force is used to restrict the sleeve 41 from sliding or rotating on the boss 21.

[0060] By detachably connecting the wind deflector 4 to the outer cone 2, the wind deflector 4 can be removed for easy maintenance and replacement, and multiple cones can be stacked on top of each other after the wind deflector 4 is removed for easy storage and transportation.

[0061] In this embodiment: the boss 21 is cylindrical, and the sleeve 41 is sleeved on the outside of the boss 21 and rotates coaxially with it.

[0062] A torsion spring 5 is provided between the sleeve 41 and the boss 21. One end of the torsion spring 5 is fixedly connected to the sleeve 41 and the other end is fixedly connected to the boss 21. When the torsion spring 5 is in its naturally extended state, the wind deflector 4 and the outer cone 2 are coplanar.

[0063] In this plan, such as Figure 7 As shown, the outer end of the boss 21 has a cavity for placing the torsion spring 5. The torsion spring 5 is embedded in the cavity and coaxial with the boss 21. One end of the torsion spring 5 is fixedly connected to the side wall of the cavity, and the other end extends out of the cavity and is fixedly connected to the sleeve 41.

[0064] The sleeve 41 rotates with the boss 21, allowing the wind deflector 4 to rotate around the axis of the boss 21, changing its tilt angle (windward area). The torsion spring 5 provides elastic support for the wind deflector 4. When the torsion spring 5 is in its naturally extended state, the wind deflector 4 is in a vertical state, with the largest windward area, so that even a small amount of wind in the environment can drive the outer cone 2 to rotate.

[0065] When the wind force increases, the pressure applied by the wind deflector 4 to the torsion spring 5 increases, causing the torsion spring 5 to deform and store energy, reducing the tilt angle of the wind deflector 4, reducing the windward area, reducing the probability that the wind force blows directly onto the wind deflector 4 and knocks down the cone, controlling the rotation speed of the outer cone 2 (preventing the rotation speed from being too fast), and converting some of the wind force into downward pressure on the cone, further improving the stability of the cone.

[0066] When the wind weakens, the pressure exerted by the wind deflector 4 on the torsion spring 5 decreases, causing the torsion spring 5 to release energy and push the wind deflector 4 to rotate, increasing the windward area.

[0067] Therefore, the wind deflector 4 can automatically adjust its tilt angle according to the wind strength and automatically adjust the rotation speed of the outer cone 2 to improve the stability of the cone.

[0068] In this embodiment: the sleeve 41 has a hollow structure with an opening at one end facing the outer cone 2, and a connecting rod 42 is provided inside the sleeve 41;

[0069] One end of the connecting rod 42 is coaxially and fixedly connected to the closed end of the sleeve 41, and the other end extends into the outer cone 2 through the boss 21 along the radial direction of the outer cone 2, and a pin 43 is inserted into the end of the connecting rod 42 along the radial direction of the connecting rod 42.

[0070] In this plan, such as Figure 5 , 8As shown, a through hole is provided in the boss 21 along the axial direction of the boss 21, and the middle part of the connecting rod 42 is rotatably engaged with the through hole.

[0071] The inner end of the boss 21 has a groove for receiving the pin 43. The connecting rod 42 is inserted into the groove through the through hole. When the pin 43 is inserted into the corresponding pin control at the end of the connecting rod 42, the pin 43 can still rotate with the connecting rod 42 in the groove. Moreover, the diameter of the through hole is smaller than the length of the pin 43. The end of the sleeve 41 facing away from the boss 21 abuts against the boss 21, thereby restricting the axial sliding of the connecting rod 42, so that the wind deflector 4 can only rotate axially around the boss 21.

[0072] In this embodiment: the outer cone 2 has a hollow structure with openings at both the top and bottom, and the top of the inner cone 1 extends out from the opening at the top of the outer cone 2;

[0073] A pressure ring 6 is provided above the outer cone 2. The opening size at the top of the outer cone 2 is smaller than the outer dimensions of the pressure ring 6. The pressure ring 6 is detachably fixed to the top of the inner cone 1.

[0074] In this plan, such as Figure 2 As shown, the pressure ring 6 is used to restrict the outer cone 2 from moving upward along the axial direction and prevent the outer cone 2 from being thrown out during rotation. The bottom end of the outer cone 2 abuts against the bottom plate of the inner cone 1, making the overall structure of the cone compact.

[0075] After the pressure ring 6 is removed from the inner cone cylinder 1, the outer cone cylinder 2 can be lifted off the inner cone cylinder 1 for easy inspection and replacement.

[0076] Additionally, after the outer cone 2 is removed, the outer cone surface of the inner cone 1 is exposed. Reflective paint or reflective film can be applied to the outer cone surface of the inner cone 1, such as... Figure 6 As shown, the inner cone 1 is used directly for warning purposes. The outer cone 2 is used as an accessory for additional functions, installed and used according to actual needs. For example, in environments with low wind speeds (closed spaces) or high wind speeds (stormy weather), the outer cone 2 can be removed, and the inner cone 1 can be used alone for warning purposes.

[0077] In this embodiment: the top end of the inner cone cylinder 1 is provided with an external thread, and the pressure ring 6 is sleeved on the outside of the top end of the inner cone cylinder 1 and connected by a threaded engagement.

[0078] In this design, the pressure ring 6 is prismatic in shape to facilitate gripping and manipulating its rotation. When the pressure ring 6 descends to the lowest point of the external thread, the top surface of the outer cone 2 just contacts the bottom surface of the pressure ring 6 (or there is still a gap, such as 0.1-0.5mm), avoiding the increase in friction between the pressure ring 6 and the outer cone 2 due to the downward pressure applied by the pressure ring 6, which would restrict the rotation of the outer cone 2.

[0079] In this embodiment: the reflective strip 3 is closely fitted to the outer conical surface of the outer cone 2 and extends spirally along the axial direction of the outer cone 2.

[0080] In this plan: (e.g.) Figure 1 , 7 As shown, the reflective strip 3 extends spirally along the axial direction of the outer cone 2 and includes a height of at least two pitches (at least two turns), so that the reflective strip 3 can be observed at any position in the circumferential direction of the outer cone 2 and can reflect light for warning purposes.

[0081] Meanwhile, the reflective strip 3 is fixedly installed on the outer cone 2. The outer cone 2 is driven by wind to rotate, causing the reflective strip 3 to rotate synchronously (similar to the rotating lights in front of a barbershop), producing a dynamic warning effect, further improving the attention of drivers and passengers, and reducing the risk of accidents.

[0082] Example 2

[0083] Please see Figure 6-8 The difference from Example 1 is as follows:

[0084] In this embodiment: the boss 21 is prismatic in shape, and the sleeve 41 is sleeved on the outside of the boss 21 and slides along the radial direction of the outer cone 2 with a single degree of freedom.

[0085] In this plan, such as Figure 10 , 11 As shown, the boss 21 has a regular prism shape, and the inside of the sleeve 41 is adapted to the shape of the boss 21. When the sleeve 41 is fitted over the boss 21, the wind baffle 4 is difficult to rotate and the tilt angle is fixed, thereby improving the overall stability of the cone.

[0086] Alternatively, after removing the wind deflector 4, the sleeve 41 can be placed outside the boss 21 at different tilt angles. For example, if the boss 21 is in the shape of a regular octagonal prism, the angle between the wind deflector 4 and the bottom surface can be selected as 90 degrees (maximum windward side), 45 degrees, or 0 degrees (minimum windward side).

[0087] In this embodiment: the reflective strip 3 includes a first strip body 31 and a second strip body 32. The first strip body 31 is annular and is sleeved on the outside of the outer cone 2.

[0088] The second belt 32 is elongated and extends upward at an angle along the conical surface of the outer conical cylinder 2.

[0089] In this plan, such as Figure 9 , 10As shown, the first belt 31 is fitted onto the outer cone 2, and the reflective belt 3 can be observed at any position along the circumference of the outer cone 2, reflecting light for warning purposes. The second belt 32 intersects the first belt 31 perpendicularly. When the outer cone 2 rotates, the second belt 32 periodically rotates to a certain direction, creating intermittent reflective points in that direction to achieve dynamic warning.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An emergency management night warning device, comprising a cone and a reflective strip (3), characterized in that: The cone includes an inner cone (1) and an outer cone (2) sleeved outside the inner cone (1), wherein the outer cone (2) and the inner cone (1) are coaxially rotatably coupled. The reflective strip (3) is wrapped around the outer conical surface of the outer conical cylinder (2) and is fixedly connected; The bottom end of the outer cone (2) is connected to a wind baffle (4), which can drive the outer cone (2) to rotate on the inner cone (1) under the influence of wind.

2. The emergency management night warning device according to claim 1, characterized in that: Multiple wind deflectors (4) are provided, and the multiple wind deflectors (4) are evenly arranged around the circumference of the outer cone (2).

3. The emergency management night warning device according to claim 1, characterized in that: The outer conical cylinder (2) has a boss (21) at the bottom of its outer circular surface, and one end of the boss (21) extends radially away from the outer conical cylinder (2). A sleeve (41) adapted to the boss (21) is fixedly connected to the wind deflector (4). The sleeve (41) is sleeved on the outside of the boss (21) and is connected in a detachable manner.

4. The emergency management night warning device according to claim 3, characterized in that: The boss (21) is cylindrical, and the sleeve (41) is sleeved on the outside of the boss (21) and rotates coaxially. A torsion spring (5) is provided between the sleeve (41) and the boss (21). One end of the torsion spring (5) is fixedly connected to the sleeve (41), and the other end is fixedly connected to the boss (21). When the torsion spring (5) is in its naturally extended state, the wind deflector (4) and the outer cone (2) are coplanar.

5. The emergency management night warning device according to claim 3, characterized in that: The boss (21) is prismatic in shape, and the sleeve (41) is fitted outside the boss (21) and slides along the outer cone (2) with a single degree of freedom.

6. The emergency management night warning device according to claim 3, characterized in that: The sleeve (41) has a hollow structure with an opening at one end facing the outer cone (2), and a connecting rod (42) is provided inside the sleeve (41); One end of the connecting rod (42) is coaxially fixedly connected to the closed end of the sleeve (41), and the other end extends into the outer cone (2) through the boss (21) radially along the outer cone (2), and a pin (43) is inserted into the end of the connecting rod (42) radially.

7. The emergency management night warning device according to claim 1, characterized in that: The outer cone (2) has a hollow structure with openings at both the top and bottom, and the top of the inner cone (1) extends out from the opening at the top of the outer cone (2); A pressure ring (6) is provided above the outer cone (2). The opening size at the top of the outer cone (2) is smaller than the outer dimensions of the pressure ring (6). The pressure ring (6) is detachably fixed to the top of the inner cone (1).

8. The emergency management night warning device according to claim 7, characterized in that: The inner cone (1) has an external thread at its top end, and the pressure ring (6) is sleeved on the outside of the top end of the inner cone (1) and connected by a threaded fit.

9. The emergency management night warning device according to claim 1, characterized in that: The reflective strip (3) is closely fitted to the outer conical surface of the outer conical cylinder (2) and extends spirally along the axial direction of the outer conical cylinder (2).

10. The emergency management night warning device according to claim 1, characterized in that: The reflective strip (3) includes a first strip body (31) and a second strip body (32). The first strip body (31) is annular and is sleeved on the outside of the outer cone (2). The second belt (32) is long and extends upward along the conical surface of the outer conical cylinder (2).

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