Multifunctional conical ventilation cap

Abstract

The utility model discloses a multifunctional conical ventilation cap which comprises a conical cover, a cap cylinder body, a central circular tube assembly, a special-shaped hook, a cap curtain and an annular head tying belt, the conical cover covers the upper portion and the outer side of the cap cylinder body, the central circular tube assembly is arranged on the upper portion of the conical cover, and the cap cylinder body is arranged on the inner side of the middle of the conical cover; the cap curtain is hung on the bone support sheet at the lower part of the inner side of the conical cover; the ring head tying belt is fixed to the lower portion of the inner side of the stand column piece of the cap barrel. The central circular tube assembly is a stress control center of the overall structure of the ventilation cap, the central circular tube assembly, the conical cover, the cap barrel and the special-shaped hook are connected to form a uniform structural stress system, lasting and stable structural rigidity can be obtained, synchronous contraction and expansion can be achieved, and the ventilation cap has the convenient use effect; an organized natural ventilation mode is adopted, the effect of timely discharging heat of the head out of the cap can be achieved, and it is ensured that the head is durable and comfortable.

Description

Technical Field

[0001] The utility model relates to a multifunctional conical ventilation cap, belonging to the technical field of human body protection products. Background Art

[0002] In recent years, changes in the global environment have led to a rapid rise in sea temperatures and, consequently, a rapid warming of the Earth's climate. Particularly in summer, the influence of subtropical high-pressure hot cyclones has easily led to the formation of "heat domes" in localized areas, resulting in extremely high temperatures exceeding 40°C to 48°C. These extreme temperatures are occurring in an increasing number of regions around the world, particularly in North China, Central China, South China, Jiangnan, and Xinjiang, with record-breaking temperatures exceeding 40°C to 48°C. These extreme temperatures pose a significant health risk to outdoor workers and can even cause sudden death.

[0003] From an ergonomic perspective, the hazards of extremely high temperature environments are mainly caused by the human head and respiratory system. As we all know, the operating temperature of organs in the human body must be kept constant at about 36°C to 37°C. Deviating from this range will cause damage to the cells in the organs. The greater the deviation, the greater the damage. If a person's head is directly exposed to extremely strong solar radiation, they will feel unbearable heat within a few minutes, followed by sweating profusely, and then they will feel extreme pain or faint. This is mainly because the human scalp has a high absorption rate of light and heat radiation energy. The inside of the top of the head is the brain, which is the human central nervous system. The cells in the central nervous system are particularly sensitive to high temperatures and are easily damaged. The human respiratory system is also extremely susceptible to damage from extremely strong light and heat radiation. This is mainly because the most core organ in the respiratory system is the respiratory cells in the alveoli (whose operating temperature is 36℃-37℃). If the ultra-high temperature gas inhaled through the nostrils is above 40℃-45℃, since the respiratory system only has the function of humidifying and heating the inhaled gas in the process from the nostrils to the alveoli, and has no dehumidification and cooling function, such high temperature gas entering the respiratory system from the nasal cavity into the alveoli will seriously damage the respiratory cells, resulting in the respiratory cells being unable to carry out normal blood exchange. In severe cases, it can cause heatstroke or heat stroke, and even sudden death.

[0004] In an environment with extremely strong light and heat radiation energy, aluminum foil cloth has excellent barrier effect. The absorption rate and emissivity of aluminum foil cloth to light and heat radiation energy are very small, and its absorption rate is about 0.02~0.05. Aluminum foil cloth is used for heat insulation. It is a new type of heat insulation material based on thermal radiation theory. It has shown its excellent heat insulation performance and good economic effect in some industries.

[0005] Regarding the existing technology of using aluminum foil cloth to make protective hats, the Chinese patent with announcement number CN211932803U discloses a "foldable ventilation hat", the structure of which the hat tube body is vertically arranged and the folding direction is also vertical contraction; the hat top cover is a single aluminum foil cloth, which is horizontally arranged and folded horizontally, and the hat tube body and the hat top cover cannot be folded uniformly. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to solve the problem in the prior art that the cap tube body and the cap top cover cannot be folded uniformly, as well as other problems caused by the adjustment of the structural system.

[0007] In order to solve the above technical problems, the technical solution of the utility model is to provide a multifunctional conical ventilation hat, which is characterized by comprising a conical cover, a hat barrel body, a central circular tube assembly, a special-shaped hook, a hat curtain and a ring head tie, the conical cover covers the upper part and the outer side of the hat barrel body, the central circular tube assembly is provided on the upper part of the conical cover, and the hat barrel body is provided on the inner side of the middle part of the conical cover;

[0008] The conical cover is a conical structure with a hole in the middle, comprising a first aluminum foil cloth and a plurality of bone support pieces, wherein the plurality of bone support pieces are evenly distributed on the conical surface of the first aluminum foil cloth;

[0009] The cap body is a cylindrical structure, comprising a second aluminum foil cloth and a plurality of column pieces, wherein the plurality of column pieces are evenly distributed on the circumferential surface of the second aluminum foil cloth;

[0010] The central circular tube assembly includes an inner tube, an outer tube, a top cover plate and an exhaust port. The outer tube is provided on the outside of the inner tube. The outer wall of the inner tube and the inner wall of the outer tube are connected by multiple connecting rods. An air duct is formed between the outer wall of the inner tube and the inner wall of the outer tube. A top cover plate is provided directly above the outer tube and is fixed to the outer wall of the inner tube. A gap is provided between the outer tube and the top cover plate to form an air duct.

[0011] A plurality of first shaft chain seats are evenly distributed on the lower outer side of the inner tube, a hinge joint is provided on the upper part of each bone support piece of the conical cover, and each first shaft chain seat is hingedly connected to a corresponding hinge joint; a first support arm joint is provided in the middle of each bone support piece, and a support arm shaft chain seat is provided on the upper inner side of each column piece of the cap tube body, and each support arm shaft chain seat is hingedly connected to the corresponding first support arm joint; a second support arm joint is provided at the lower part of each bone support piece, and a second shaft chain seat is provided at one end of each special-shaped hook, and each second shaft chain seat is hingedly connected to the corresponding second support arm joint; a locking seat is provided at the lower outer side of each column piece, and the other end of each special-shaped hook is a locking hook head, and each locking hook head is detachably buckled with a corresponding locking seat;

[0012] The hat curtain is hung on the bone support piece at the lower inner part of the conical cover; the ring head tie is fixed to the lower inner part of the column piece of the hat body.

[0013] Preferably, the central circular tube assembly is a rigid body; a plurality of support plates of the conical cover are arranged on the inner side of the first aluminum foil cloth, the first aluminum foil cloth is a flexible body, and the support plates are a rigid body; a plurality of column plates of the cap tube body are arranged on the inner side of the second aluminum foil cloth, the second aluminum foil cloth is a flexible body, and the column plates are a rigid body; when the lock hook head and the lock buckle seat are locked, the conical cover and the cap tube body are rigid bodies; when the lock hook head and the lock buckle seat are disengaged, the conical cover and the cap tube body are flexible bodies.

[0014] Preferably, each of the support arm shaft chain seats extends out of the top surface of its corresponding column piece.

[0015] Preferably, the inner tube of the central circular tube assembly is arranged in the hole in the middle of the conical cover, and the outer tube is arranged above the outer side of the conical cover.

[0016] Preferably, the inner tube passes through and protrudes from the top cover plate, and the portion of the inner tube protruding from the top cover plate serves as a grip for hand-held opening and closing of the ventilator hood.

[0017] The inner tube of this central circular tube assembly serves as the stress-bearing center for the hood's overall structure. When in use, the structural support lies at the head, transferred to the head by the headband. The hood's own rigid self-supporting force relies on the combined forces of the inner tube control center and the various structural components. This triangular structural stress-bearing system, interconnected by three stress-bearing points, addresses both the rigidity and flexibility of the hood's overall structure.

[0018] The utility model discloses a multifunctional conical ventilation hood, comprising a conical cover, a hood body, a central circular tube assembly, a special-shaped hook, a hood veil, and a headband. The conical cover covers the upper and outer sides of the hood body, the upper part of the conical cover is provided with a central circular tube assembly, and the inner side of the middle part of the conical cover is provided with a hood body; the hood veil is hung on the bone support piece at the lower inner side of the conical cover; and the headband is fixed to the lower inner side of the column piece of the hood body. The central circular tube assembly of the utility model is the force control center of the overall structure of the ventilation hood. The central circular tube assembly is linked with the conical cover, the hood body, and the special-shaped hook to form a unified structural force system, which can obtain long-lasting and stable structural rigidity, realize synchronous contraction and expansion, and has a convenient use effect; the use of organized natural ventilation can achieve the effect of timely discharging head heat to the outside of the hood, ensuring long-lasting head comfort.

[0019] Compared with the prior art, the beneficial effects produced by the present invention are as follows:

[0020] 1). The brim of the hat is omitted, which reduces the production cost and simplifies the operation process.

[0021] 2) The central circular tube assembly is used as the force control center of the overall structure of the vent cap. The central circular tube assembly is connected with the conical cover, the cap body, and the special-shaped hook to form a unified structural force system, which can obtain long-lasting and stable structural rigidity, realize synchronous contraction and expansion, and have a convenient use effect;

[0022] 3) The ventilation system has been improved. A central circular tube assembly is installed on the upper part of the conical hood. The outer tube of the central circular tube assembly is the main tube, and an exhaust port is set on the upper part. An air duct is set between the central circular tube assembly and the conical hood, between the conical hood and the cap barrel, and between the inner side of the cap barrel and the head. This forms an organized natural ventilation system that can timely discharge head heat to the outside of the cap, so that the head can obtain better ventilation and heat dissipation effect, ensuring long-term head comfort.

[0023] 4). It adopts a conical cover structure, with aluminum foil as the main material for blocking light and heat radiation energy. The aluminum foil increases the blocking area of light and heat radiation energy, and the head obtains a more comprehensive protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a multifunctional conical vent cap;

[0025] Figure 2 It is the main view of the cap tube body;

[0026] Figure 3 It is a top view of the cap tube body;

[0027] Figure 4 It is a partial schematic diagram of the special-shaped hook;

[0028] Figure 5 This is the main view of the inner tube connection of the central circular tube assembly;

[0029] Figure 6 It is a top view of the inner tube connection of the central circular tube assembly;

[0030] Figure 7 This is the main view of the outer tube connection of the central circular tube assembly;

[0031] Figure 8 It is a top view of the outer tube connection of the central circular tube assembly;

[0032] Figure 9 Schematic diagram of the connection between the central circular tube assembly and the conical cover;

[0033] Figure 10 Schematic diagram of the connection between the aluminum foil cloth and the bone support piece;

[0034] Figure 11 Schematic diagram of the conical cover (with a connection structure of special-shaped hooks).

[0035] in:

[0036] 1 is the cone-shaped cover; 2 is the hat barrel; 3 is the central circular tube assembly; 4 is the special-shaped hook; 5 is the hat curtain; 6 is the headband;

[0037] 11 is a first aluminum foil cloth; 12 is a bone support sheet;

[0038] 21 is the second aluminum foil cloth; 22 is the column sheet;

[0039] 31 is the inner tube; 32 is the outer tube; 33 is the top cover plate; 34 is the exhaust port; 35 is the connecting rod;

[0040] 101 is a hinged joint; 102 is a first arm joint; 103 is a second arm joint;

[0041] 201 is the arm shaft chain seat; 202 is the lock seat;

[0042] 301 is the first axis chain seat;

[0043] 401 is the second shaft chain seat; 402 is the lock hook head;

[0044] 101 / 301 is the first hinge point; 102 / 201 is the second hinge point; 103 / 401 is the third hinge point; 402 / 202 is the hinge point. DETAILED DESCRIPTION

[0045] In order to make the present invention more clear and easy to understand, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0046] The utility model provides a multifunctional conical ventilating cap, such as Figures 1-11 As shown, it includes a conical cover 1, a hat barrel body 2, a central circular tube assembly 3, a special-shaped hook 4, a hat veil 5 and a ring head tie 6; the conical cover 1 covers the upper and outer sides of the hat barrel body 2, and the upper part of the conical cover 1 is provided with a central circular tube assembly 3; the inner side of the middle part of the conical cover 1 is provided with the hat barrel body 2, and the special-shaped hook 4 is provided on the inner side of the middle part of the conical cover 1; the lower part (inside) of the conical cover 1 is provided with a hat veil 5.

[0047] The central circular tube component 3 is the force control center of the overall structure of the ventilating hood. The central circular tube component 3 can realize synchronous contraction and expansion through the interconnection with the conical cover 1, the hood body 2 and the special-shaped hook 4, and has a stable and lasting structural system and the effect of convenient use.

[0048] The conical cover 1, the primary component for blocking light and heat radiation energy, is conical in shape, larger at the bottom and smaller at the top, inclined at approximately 45°. It is composed of a first aluminum foil sheet 11 and a support plate 12, with the first aluminum foil sheet 11 on the outside and the support plate 12 on the inside. The first aluminum foil sheet 11 is flexible, while the support plate 12 is rigid, creating a combined component that combines both rigidity and flexibility. The central tip of the conical cover 1 is hollowed out, meaning a circular hole is provided in the center of the first aluminum foil sheet 11 for mounting the inner tube 31 of the central circular tube assembly 3. Multiple support plates 12 are evenly distributed across the conical surface of the expanded first aluminum foil sheet 11, with each support plate 12 positioned at the center and bottom ends of the conical surface of the first aluminum foil sheet 11, respectively.

[0049] The cap barrel body 2 is cylindrical and vertically arranged. It is composed of a second aluminum foil sheet 21 and pillars 22, with the second aluminum foil sheet 21 on the outside and the pillars 22 on the inside. The second aluminum foil sheet 21 is flexible, while the pillars 22 are rigid, forming a combined component that combines both rigidity and flexibility. When the second aluminum foil sheet 21 is expanded, it forms a cylindrical shape. Multiple pillars 22 are evenly distributed around the circumference of the expanded second aluminum foil sheet 21, with each pillar 22 positioned at either end of the second aluminum foil sheet 21.

[0050] The central circular tube assembly 3 includes an inner tube 31, an outer tube 32, a top cover plate 33 and an exhaust port 34; the central circular tube assembly 3 is a rigid body. An outer tube 32 is provided on the outside of the inner tube 31. The outer wall of the inner tube 31 and the inner wall of the outer tube 32 are connected by multiple connecting rods 35. An air duct is formed between the outer wall of the inner tube 31 and the inner wall of the outer tube 32. A top cover plate 33 is provided directly above the outer tube 32. A gap is provided between the outer tube 32 and the top cover plate 33 to form an air duct. The top cover plate 33 is fixed to the outer wall of the inner tube 31. The inner tube 31 passes through and protrudes from the top cover plate 33. The part of the inner tube 31 protruding from the top cover plate 33 is the grip for hand-operated opening and closing of the vent hood (i.e., the operating convex tube). The inner tube 31, outer tube 32 and top cover plate 33 are all covered with aluminum foil. The inner tube 31 of the central circular tube assembly 3 is provided in the hole in the middle of the conical cover 1, and the outer tube 32 is provided above the outer side of the conical cover 1.

[0051] The special-shaped hook 4 is a movable component, one end of which is rotatably connected to the bone support piece 12 on the inner side of the conical cover 1, and the other end is a movable end, which is detachably connected to the column piece 22 of the cap tube body 2. The special-shaped hook 4 is a rigid body.

[0052] The cap veil 5 is a movable heat-insulating component, made of aluminum foil or other suitable materials, and is a flexible body. It is hung on the bone support piece 12 at the lower inner side of the conical cover 1.

[0053] The ring head tie 6 is made of plain cloth and is fixed to the lower inner side of the column piece 22 of the hat barrel body 2. The ring head tie 6 is a flexible body.

[0054] The ventilator cap of this utility model is designed to be retractable. The overall structural stress of the ventilator cap is analyzed using a triangular stress system as follows:

[0055] The inner tube 31 of the central circular tube assembly 3 is the force control center in the overall structural system of the ventilating hood. Eight first axis chain seats 301 are evenly distributed on the lower outer side of the inner tube 31. Eight hinge joints 101 are provided on the upper parts of the eight bone support pieces 12 inside the conical cover 1. The first axis chain seats 301 are hinged to the hinge joints 101 to form a first hinge point 101 / 301; eight first support arm joints 102 are provided in the middle of the bone support piece 12 inside the conical cover 1, and eight support arm axis chain seats 201 are provided on the upper inner side of the column piece 22 of the cap tube body 2. The support arm axis chain seats 201 extend out of the top surface of the column piece 22, and the support arm axis chain seats 201 are hinged to the first support arm joints 102 to form a second hinge point 102 / 201; Eight second arm joints 103 are provided at the lower part of the bone support piece 12 on the inner side of the conical cover 1, and a second axis chain seat 401 is provided at one end of the special-shaped hook 4, and the second axis chain seat 401 is hinged to the second arm joint 103 to form a third hinge point 103 / 401; a lock seat 202 is provided at the lower part of the outer side of the column piece 22 of the cap barrel body 2, and the other end of the special-shaped hook 4 is a lock hook head 402, which is buckled with the lock hook seat 202 to form a hinge point 402 / 202; the lock hook head of the special-shaped hook 4 is a movable point. When the lock hook head 402 is locked with the lock hook seat 202, the conical cover 1 and the cap barrel body 2 are rigid bodies; when the lock hook head 402 is disengaged from the lock hook seat 202, the conical cover 1 and the cap barrel body 2 are flexible bodies.

[0056] After the first shaft chain seat 301 is hinged to the hinge joint 101, the conical cover 1 is unfolded at about 45 degrees and sits on the cap cylinder body 2. Since the cap cylinder body 2 is an upright cylindrical body, the outer diameter of the cylindrical body is subjected to the radial constraint force formed by the second aluminum foil cloth 21 and the column sheet 22, and forms a strong rigidity. Therefore, after the support arm shaft chain seat 201 is hinged to the first support arm joint 102, the rigidity of the upper part of the cap cylinder body 2 begins to form, but the lower part of the cap cylinder body 2 is still a flexible body; when the second shaft chain seat 401 is hinged to the second support arm After the joint 103 is hinged, the lock hook head 402 is buckled with the lock seat 202, and the cap barrel body 2 becomes an upright cylindrical shape, that is, the cap barrel body 2 forms a better rigid body; note that the special-shaped hook 4 and the bone support piece 12 of the conical cover 1 are set at approximately 90°. Since the bone support piece 12 of the conical cover 1 is composed of 8 conical cylinders, the column piece 22 of the cap barrel body 2 is also composed of 8 cylinders. The bone support piece 12 of the conical cover 1 is also formed into a cylinder under the action of the hinge joint 101, the first support arm joint 102, and the second support arm joint 103.

[0057] The first aluminum foil cloth 11 and the bone support piece 12 on the outside of the conical cover 1 have a radial constraint force after being combined, which is the basic force for the conical cover to form a cylindrical shape; it can be seen that the second hinge point 102 / 201 is the force point formed by the first support arm joint 102 in the middle of the bone support piece 12 of the conical cover 1 and the support arm shaft chain seat 201 on the upper part of the column piece 22 of the cap tube body 2, and the third hinge point 103 / 401 is the force point formed by the second support arm joint 103 at the lower part of the bone support piece 12 of the conical cover 1 and the second shaft chain seat 401 of the special-shaped hook 4 The hinge point 402 / 202 is the force bearing point formed by the locking head 402 of the special-shaped hook 4 and the locking seat 202 on the lower outer side of the column piece 22 of the cap barrel body 2. Therefore, the second hinge point 102 / 201, the third hinge point 103 / 401, and the hinge point 402 / 202 form a triangular structural force system. At the same time, the addition of the first hinge point 101 / 301 as the total force control point can ensure synchronous contraction and expansion, and have a stable structural system and convenient use. In addition, by changing the hinge point 402 / 202 to a fixed force bearing point, the entire ventilator cap becomes non-contractible.

[0058] This utility model proposes the concept of a ventilated cap. The purpose of ventilation is to solve the problem of heat dissipation from the head. While aluminum foil protects the head from harmful solar radiation, it prevents the timely removal of heat dissipated from the head. This causes the temperature around the head to rise, making the cap unusable. If organized natural ventilation could be utilized within the cap to promptly remove heat dissipated from the head, the head would be kept in a comfortable environment. Therefore, a ventilated cap must be well ventilated when worn.

[0059] The present invention improves the overall structural scheme of the prior art, thereby changing the ventilation scheme in the prior art. The present invention adopts an organized natural ventilation method, and the specific technical solution is described as follows:

[0060] When the sun's thermal radiation reaches the earth's surface, it quickly heats the surface. The heated air will naturally flow upward. When people are outdoors, the air around their bodies is in a natural upward flow.

[0061] The production process of this utility model is as follows:

[0062] The central circular tube assembly 3 comprises an inner tube, an outer tube, a top cover, and an exhaust port. The inner tube is the overall structural force control center of the hood, while the outer tube, top cover, and exhaust port are the primary components for organized natural ventilation. To utilize the kinetic energy of the air naturally flowing upward after the ground is heated, the following air flow ventilation ducts are provided between the hood and the head: a first duct, between the hood body 2 and the head; a second duct, between the conical cover 1 and the head; a third duct, between the conical cover 1 and the inner tube 31 of the central circular tube assembly 3; and a fourth duct, between the outer tube 32 and the inner tube 31 of the central circular tube assembly 3, and the exhaust port 34. After being heated, driven by the lift generated by the natural upward flow of the air, the air flows from the first duct into the second, third, and fourth ducts, and then out of the hood through the exhaust port 34.

[0063] The conical cover 1 is constructed from a first aluminum foil sheet 11 and a support sheet 12. The first aluminum foil sheet 11 is positioned outside, and the support sheet 12 is positioned inside. The conical cover 1 is cylindrical, with an upper diameter of approximately 76 mm and a lower diameter of approximately 460 mm, and an inclination angle of approximately 45°. The first aluminum foil sheet 11 is larger at the bottom and smaller at the top, and is divided into eight pieces. The eight support sheets 12 are arranged in pairs, with the edge of the first aluminum foil sheet 11 inserted between the two support sheets 12 and secured. The support sheets 12 of the conical cover 1 are approximately 300 mm long, 6 mm high, and 0.8 mm thick. They are made of polymer plastic or other suitable materials and are mated to the central circular tube assembly 3, the cap barrel 2, the shaped hook 4, and the cap valance 5. The colored side of the first aluminum foil sheet 11 faces outward, and the smooth side faces inward. The center point of the conical cover 1 is aligned with the center points of the central circular tube assembly 3 and the cap barrel 2.

[0064] The production of the cap barrel body 2, the cap barrel body 2 is composed of a second aluminum foil cloth 21 and a column piece 22, the second aluminum foil cloth 21 is outside, and the column piece 22 is inside, with a vertical cylindrical structure, a diameter of about 220mm, and a height of about 95~110mm. The colored side of the second aluminum foil cloth 21 faces outward and the smooth side faces inward. The upper and lower parts of the second aluminum foil cloth 21 are fixed to the two end heads on the outside of the column piece 22, and the upper inner side of the column piece 22 is provided with a support arm shaft chain seat 201 extending upward from the top of the column piece 22, and a lock seat 202 is provided on the outer side of the lower part of the column piece 22. The column piece 22 is a groove-shaped structure, and the thickness of the vertical column piece is about 0.8~1.0mm. The column piece 22 is made of polymer plastic or other suitable materials.

[0065] The valance 5 is made of aluminum foil to expand the head's protective area. It is hooked to the inner support 12 of the conical hood 1. The valance 5 is approximately 140 mm high and 680 mm long. It is designed to face forward and backward, with an opening on the front. The valance 5 is flexible and movable, allowing it to be installed or not, at the user's discretion. The colored side of the valance faces outward, while the smooth side faces inward.

[0066] The headband 6 is used to fix the ventilating cap to the head. It is made of plain cloth and is provided with a locker. It is fixed on the column piece 22 at the lower end of the inner side of the cap barrel body 2.

[0067] The operation process of the ventilator cap of the utility model from the retracted state to the expanded state and the reverse operation process are as follows:

[0068] On the operating platform, manually lift the operating convex tube at the top of the hood to fully unfold the conical cover 1 and the hood body 2. Then, manually locate the special-shaped hook 4 below the support plate 12 of a particular conical cover 1. Grasp the special-shaped hook 4 and insert the locking hook head 402 into the corresponding locking seat 202 to lock it. Then, lock all the special-shaped hooks 4 in sequence. Once all eight locking seats 202 are locked, the conical cover 1 and the hood body 2 will be rigid and ready for wearing. When the hood is no longer needed, place the hood flat on the workbench in its unfolded state. Manually locate the locking hook head 402 of a particular special-shaped hook 4 and release it from the locking seat 202. Then, release each of the eight locking seats 202 in sequence. Once all eight locking seats 202 are released, manually lift the operating convex tube at the top of the hood and manually retract the conical cover 1 and the hood body 2 in sequence. Secure the hood with the locking strap. Then, place the hood in a handbag.

Claims

1. A multifunctional conical vent cap, characterized in that: The invention comprises a conical cover (1), a cap body (2), a central circular tube assembly (3), a plurality of special-shaped hooks (4), a cap veil (5) and a headband (6); the conical cover (1) covers the upper part and the outer side of the cap body (2); the central circular tube assembly (3) is provided on the upper part of the conical cover (1); and the cap body (2) is provided on the inner side of the middle part of the conical cover (1); The conical cover (1) is a conical structure with a hole in the middle, comprising a first aluminum foil cloth (11) and a plurality of bone support pieces (12), wherein the plurality of bone support pieces (12) are evenly distributed on the conical surface of the first aluminum foil cloth (11); The cap barrel body (2) is a cylindrical structure, comprising a second aluminum foil cloth (21) and a plurality of column pieces (22), wherein the plurality of column pieces (22) are evenly distributed on the circumferential surface of the second aluminum foil cloth (21); The central circular tube assembly (3) comprises an inner tube (31), an outer tube (32), a top cover plate (33) and an exhaust port (34); the outer tube (32) is provided on the outer side of the inner tube (31); the outer wall of the inner tube (31) and the inner wall of the outer tube (32) are connected by a plurality of connecting rods (35); an air duct is formed between the outer wall of the inner tube (31) and the inner wall of the outer tube (32); a top cover plate (33) is provided just above the outer tube (32); the top cover plate (33) is fixed on the outer wall of the inner tube (31); a gap is provided between the outer tube (32) and the top cover plate (33) to form an air duct; A plurality of first shaft chain seats (301) are evenly distributed on the lower outer side of the inner tube (31); a hinge joint (101) is provided on the upper part of each bone support piece (12); and each first shaft chain seat (301) is hinged to a corresponding hinge joint (101); a first support arm joint (102) is provided in the middle part of each bone support piece (12); and a support arm shaft chain seat (201) is provided on the upper inner side of each column piece (22); and each support arm shaft chain seat (201) is hinged to a corresponding first support arm joint (102). Hinge; a second arm joint (103) is provided at the lower part of each bone support piece (12), a second shaft chain seat (401) is provided at one end of each special-shaped hook (4), and each second shaft chain seat (401) is hinged to its corresponding second arm joint (103); a lock seat (202) is provided at the lower outer part of each column piece (22), and a lock hook head (402) is provided at the other end of each special-shaped hook (4), and each lock hook head (402) is detachably buckled with a corresponding lock seat (202); The cap curtain (5) is hung on the bone support piece (12) at the inner lower part of the conical cover (1); and the ring head tie (6) is fixed to the inner lower part of the column piece (22) of the cap barrel body (2).

2. A multifunctional conical vent cap as claimed in claim 1, characterized in that: The central circular tube assembly (3) is a rigid body; a plurality of bone support pieces (12) are arranged on the inner side of the first aluminum foil cloth (11), the first aluminum foil cloth (11) is a flexible body, and the bone support pieces (12) are a rigid body; a plurality of column pieces (22) are arranged on the inner side of the second aluminum foil cloth (21), the second aluminum foil cloth (21) is a flexible body, and the column pieces (22) are a rigid body; when the lock hook head (402) and the lock buckle seat (202) are locked, the conical cover (1) and the cap tube body (2) are rigid bodies; when the lock hook head (402) and the lock buckle seat (202) are disengaged, the conical cover (1) and the cap tube body (2) are flexible bodies.

3. A multifunctional conical vent cap as claimed in claim 1, characterized in that: Each of the arm shaft chain seats (201) extends out of the top surface of its corresponding column piece (22).

4. A multifunctional conical vent cap as claimed in claim 1, characterized in that: The inner tube (31) of the central circular tube assembly (3) is arranged in the hole in the middle of the conical cover (1), and the outer tube (32) is arranged above the outer side of the conical cover (1).

5. The multifunctional conical vent cap according to claim 1, characterized in that: The inner tube (31) passes through and protrudes from the top cover plate (33), and the portion of the inner tube (31) protruding from the top cover plate (33) serves as a grip for hand-held opening and closing of the ventilation hood.

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