A cluster sunscreen timing opening and closing flying device

By using a cluster-based, sun-protected, timed-opening and closing launch device with a fully enclosed wire mesh structure and sun-protection design, the problems of balloons easily scattering and breaking are solved, achieving uniform and continuous balloon ascent and orderly launch, thus improving the reliability and visual effect of the event.

CN224546656UActive Publication Date: 2026-07-24BEIJING BEIAO FESTIVAL INT CULTURE DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING BEIAO FESTIVAL INT CULTURE DEV CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-24

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Abstract

The utility model relates to public activity equipment technical field, the utility model discloses a cluster sunscreen timing opening and closing's flying device, including base, universal wheel is fixedly installed in the bottom surface four corners of base, four groups of iron net peripheral frame are fixedly installed on the upper surface of base, four groups of iron net peripheral frame and base form the accommodation space for accommodating balloon, and the accommodation space top open -mouth place is equipped with square frame, and the accommodation space top open -mouth place is equipped with square frame, and the square frame is equipped with the top cover that is in symmetry arrangement, the both sides of top cover are connected with the pole of holding through connecting rope, the door of putting, be located in the lower left corner of iron net peripheral frame, sunscreen heat insulation net is fixedly installed in the inner side wall of iron net peripheral frame, sunshade curtain is in symmetry and is established on square frame, pull mechanism, be located in square frame, be used for the flexible drive opening and closing of two groups of sunshade curtain.
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Description

Technical Field

[0001] This utility model relates to the field of public activity equipment technology, specifically a cluster sun protection timed opening and closing release device. Background Technology

[0002] In large-scale celebrations or commemorative events, balloon releases are often used as the grand finale to create a lively and celebratory atmosphere. Traditional balloon release methods rely heavily on manual handling, which can lead to problems such as balloons easily dispersing prematurely, damage or deformation due to environmental factors (such as exposure to sunlight or wind and rain), and difficulty in uniformly controlling the timing of releases. These issues seriously affect the visual effect and the quality of the event.

[0003] Especially under adverse weather conditions such as high temperature, heavy rain, or strong winds, balloons need to be left still for a long time after inflation. Without effective protection, they are very prone to shrinking, rupture, or accidental scattering, resulting in launch failure. In addition, existing launch devices are often simple in structure and lack systematic design, making it impossible to achieve large-scale, clustered, timed, and quantitative control of balloon release, and difficult to form a neat, uniform, and visually impactful "globe curtain" effect. Therefore, we have proposed a clustered, sun-protected, timed opening and closing launch device to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cluster-based, sun-protective, timed-opening and closing balloon launching device. This solves the problems of traditional balloon launching methods, which rely on manual hand-held release, are prone to premature scattering, are easily damaged or deformed by environmental factors, and have difficulty in uniformly controlling the timing of release. These methods also fail to achieve large-scale, controllable cluster release and create a neat and spectacular visual effect.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a cluster sun protection timed opening and closing launching device, including a base; The casters are fixedly installed at the four corners of the lower surface of the base. Four sets of iron mesh outer frames are fixedly installed on the upper surface of the base. The four sets of iron mesh outer frames and the base form a storage space for accommodating balloons. A square frame is provided at the top opening of the storage space, and a top cover is provided on the square frame in a symmetrical arrangement. The two sides of the top cover are connected to lifting poles by connecting ropes. The delivery gate is located at the lower left corner of the outer frame of the iron mesh; A sun-protective and heat-insulating net is fixedly installed on the inner wall of the outer frame of the iron mesh; The sunshade curtains are symmetrically arranged on the square frame; A pulling mechanism, located on a square frame, is used to flexibly drive the opening and closing of the two sets of sunshade curtains.

[0006] Preferably, the outer frame of the wire mesh has a delivery port adapted to the delivery door. The delivery door is located at the delivery port and is hinged to the outer frame of the wire mesh via a hinge. The outer frame of the wire mesh is fixed with a latch seat with a hole on one side of the delivery door. A latch is fixed on the surface of the delivery door and is inserted into the hole of the latch seat to lock the delivery door and the outer frame of the wire mesh relative to each other.

[0007] Preferably, a handle is fixedly installed on the outer frame of the iron mesh near the top of the delivery gate.

[0008] Preferably, one side of the top cover is hinged to the square frame via a hinge, the curtain frame of the sunshade curtain is fixedly connected to the inner wall of the square frame, and the square frame is fixedly connected to the four sets of iron mesh outer frames.

[0009] Preferably, a locking component for fixing the lifting rod is fixedly installed on the surface of the outer frame of the iron mesh. The locking component includes a limiting seat that is rotated on the surface of the outer frame of the iron mesh near the position of the lifting rod by a rotating seat. A U-shaped groove for placing the lifting rod is opened on one side of the limiting seat, and a screw that blocks the opening of the U-shaped groove is threadedly connected to the limiting seat through a threaded hole.

[0010] Preferably, the pulling mechanism includes a weight plate fixed to the output end of the sunshade curtain, and symmetrically arranged guide rails fixed inside the square frame near the sunshade curtain. The two ends of the weight plate are limited and slidably in the guide grooves opened in the guide rails by rollers. U-shaped seats are fixedly installed on both sides of the square frame in a symmetrical arrangement. Guide wheels are rotatably installed in the U-shaped seats through a rotating shaft. A stop bar is fixedly installed in the U-shaped seats. Two sets of ropes are provided above the sunshade curtain. One end of each set of ropes on each side is fixedly connected to the two sets of weight plates, and the other end is wound around the guide wheel and between the guide wheel and the stop bar.

[0011] Preferably, the pulling mechanism includes a weight plate fixed to the output end of the sunshade curtain. A symmetrically arranged guide rail is fixed within the square frame near the sunshade curtain. The two ends of the weight plate slide within guide grooves in the guide rails via rollers. A symmetrically arranged U-shaped seat is fixedly installed on both sides of the square frame. A guide wheel is rotatably mounted within the U-shaped seat via a rotating shaft. A stop bar is fixedly installed within the U-shaped seat. The two sets of sunshade curtains are designed with an inclined downward structure towards the side furthest from each other. The guide rail and the curtain frame of the sunshade curtain are parallel. A symmetrically arranged L-shaped sleeve rod is fixed on the square frame, located on one set of sunshade curtains. A ball bearing sleeve is fixed to one end of each L-shaped sleeve rod, located between the two weight plates. A rope is provided within the L-shaped sleeve rod. One end of each rope passes through the ball bearing sleeve and is fixedly connected to the weight plate. The other ends of each rope are wound around a guide wheel and are positioned between the guide wheel and the stop bar.

[0012] Preferably, a limiting baffle is fixedly installed on the inner side wall of the square frame, and corresponding grooves adapted to the limiting baffle are opened at both ends of the side of the weight plates that are close to each other. When the two sets of weight plates are in contact, the weight plates and the limiting baffle form a sealing surface as a whole. Beneficial effects

[0013] This invention provides a timed opening and closing release device for clustered sun protection. Compared with the prior art, it has the following advantages: This cluster of sun-protected, timed-opening and closing launch devices uses a fully enclosed cubic wire mesh structure with a lockable launch door, and is equipped with two layers of protective structure on top to form a sturdy container. This effectively prevents balloons from accidentally escaping during stationary or moving processes due to strong winds, human collisions, or environmental disturbances. The internal sun-protection and heat-insulating net and sunshade curtain together form a heat-insulating and sun-protecting layer, which greatly reduces the risk of balloon shrinkage and rupture caused by high-temperature exposure. It also has a rainproof function, ensuring the integrity of the balloons before launch and significantly improving the reliability of the activity. By coordinating the design of the top cover opening and closing mechanism, the sunshade curtain, and the pulling mechanism, a controllable operation is achieved, transitioning from "completely enclosed" to "orderly release." Operators, through coordinated movements, open the top cover and then control the opening speed and extent of the sunshade curtain by adjusting the rhythm of the pulling ropes. This allows the balloons to rise evenly and continuously from the device, rather than bursting out all at once. This controllable, timed release method creates a spectacular and orderly "colorful dome" effect, perfectly solving the problem of balloons rising haphazardly and chaotically in traditional methods, greatly enhancing the visual impact and the effect of the event / celebration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top cover folding structure of this utility model; Figure 3 This utility model Figure 2 An enlarged structural diagram at point A; Figure 4 This is a structural schematic diagram of the universal wheels and the outer frame of the iron mesh of this utility model.

[0015] In the diagram: 101, base; 102, caster wheel; 103, outer frame of wire mesh; 104, handle; 105, release door; 106, sunshade and heat insulation net; 107, top cover; 108, lifting pole; 109, sunshade curtain; 2, pulling mechanism; 201, U-shaped seat; 202, guide wheel; 203, stop bar; 204, rope; 205, L-shaped sleeve; 206, ball bearing sleeve; 207, weight plate; 208, guide rail. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] like Figure 1-3 As shown: A cluster sun protection timed opening and closing launching device includes a base 101; The casters 102 are fixedly installed at the four corners of the lower surface of the base 101; Four sets of iron mesh outer frames 103 are fixedly installed on the upper surface of the base 101. The four sets of iron mesh outer frames 103 and the base 101 form a storage space for accommodating balloons. A square frame is provided at the top opening of the storage space, and a top cover 107 is provided on the square frame in a symmetrical arrangement. One side of the top cover 107 is hinged to the square frame by a hinge, and the two sides of the top cover 107 are connected to the lifting pole 108 by connecting ropes. A locking component for fixing the lifting rod 108 is fixedly installed on the surface of the outer frame 103 of the iron mesh. The locking component includes a limiting seat that rotates on the surface of the outer frame 103 of the iron mesh near the lifting rod 108 via a rotating seat. A U-shaped groove for placing the lifting rod 108 is provided on one side of the limiting seat. A screw that blocks the opening of the U-shaped groove is threadedly connected to the limiting seat through a threaded hole. The delivery door 105 is located at the lower left corner of the outer frame of the wire mesh 103. The outer frame of the wire mesh 103 has a delivery opening that matches the delivery door 105. The delivery door 105 is located at the delivery opening and is hinged to the outer frame of the wire mesh 103 via a hinge. A latch seat with a hole is fixed to one side of the outer frame of the wire mesh 103 near the delivery door 105. A latch is fixed to the surface of the delivery door 105 and is inserted into the latch seat hole to lock the delivery door 105 and the outer frame of the wire mesh 103 relative to each other. A handle 104 is fixedly installed on the upper part of the outer frame of the wire mesh 103 near the delivery door 105. Sunscreen and heat insulation net 106 is fixedly installed on the inner wall of the outer frame 103 of the iron mesh; The sunshade curtain 109 is symmetrically arranged on the square frame. The curtain frame of the sunshade curtain 109 is fixedly connected to the inner wall of the square frame, and the square frame is fixedly connected to the four sets of iron mesh outer frame 103. A pulling mechanism 2, mounted on a square frame, is used to flexibly drive the opening and closing of two sets of sunshade curtains 109. The pulling mechanism 2 includes a weight plate 207 fixed to the output end of the sunshade curtain 109. A guide rail 208 arranged symmetrically is fixed inside the square frame near the position of the sunshade curtain 109. The sunshade curtain 109 is parallel to the square frame. The two ends of the weight plate 207 slide in the guide groove opened in the guide rail 208 through roller limit. U-shaped seats 201 arranged symmetrically are fixedly installed on both sides of the square frame. A guide wheel 202 is rotatably installed in the U-shaped seat 201 through a rotating shaft. A stop bar 203 is fixedly installed in the U-shaped seat 201. Two sets of ropes 204 are provided above the sunshade curtain 109. One end of each set of ropes 204 is fixedly connected to the two sets of weight plates 207, and the other end is wound around the guide wheel 202 and between the guide wheel 202 and the stop bar 203. A limit baffle is fixedly installed on the inner side wall of the square frame. The two ends of the weight plates 207 on the side that are close to each other are provided with corresponding grooves that are adapted to the limit baffle. When the two sets of weight plates 207 are in contact, the weight plates 207 and the limit baffle form a sealing surface as a whole.

[0018] In this implementation plan: the cluster sun protection timed opening and closing launch device is operated by the operator through the handles 104 on both sides of the device, which causes the casters 102 at the four corners of the base 101 to roll, enabling the device to move flexibly; after the device reaches the designated position in the square, the self-locking structure of the casters 102 is locked, and the brake pads are stepped on to lock the four casters 102 in a locked state, preventing the device from shifting due to strong winds or personnel touching it. The casters 102 have a load-bearing capacity of ≥500kg, including the weight of the device and balloon, and a pushing resistance of ≤100N, allowing a single person to push the device; after self-locking, the anti-slip coefficient is ≥0.8, and the device will not shift in winds of level 5; Check the status of the locking parts on the surface of the outer frame of the iron mesh 103: confirm that the U-shaped groove of the limit seat is engaged with the lifting rod 108 and that the screw is tightened to close the opening of the U-shaped groove, so as to prevent the lifting rod 108 from swinging arbitrarily and injuring people during the static or preparation stage. The operator pulls the latch on the release door 105 out of the latch seat hole of the outer frame 103 of the iron mesh, releasing the lock between the release door 105 and the outer frame 103 of the iron mesh; the release door 105 is opened by flipping the hinge, and the inflated balloons are placed in batches into the receiving space formed by the four sets of outer frames 103 of the iron mesh and the base 101. After filling, the release door 105 is closed, and the latch is reinserted into the latch seat hole to lock it, preventing the balloons from accidentally leaking out; at the same time, the sunshade and heat insulation net 106 is made of high-density polyethylene material, which, together with the sunshade curtain 109, forms a heat insulation structure to prevent the balloons from shrinking and bursting due to high temperature. At the same time, the setting of the sunshade curtain 109 can avoid direct sunlight, and has the effects of heat insulation and rain protection; Four operators stand around the device, loosen the screws of the locking parts, rotate the limiting seat so that the U-shaped groove opens to the outside, and release the limitation on the lifting rod 108; the operators hold the lifting rod 108 with both hands, exert force upward in sync and move their feet to drive the top cover 107 to flip around the hinge of the square frame, so that the top cover 107 folds outward to the outside of the iron mesh frame 103, thus opening the top cover 107 and revealing the sunshade curtain 109 below; Two operators stand on the east and west sides of the device, each holding a rope 204 connected to the sunshade curtain 109 and the weight plate 207. The ropes 204 are wound around the guide wheel 202 inside the U-shaped seat 201. The stop bar 203 limits the ropes 204 to prevent them from leaving the guide wheel 202 track. The operators pull the ropes 204 downwards simultaneously. The ropes 204 change the direction of force through the guide wheel 202, causing the weight plate 207 to slide to both sides along the guide groove of the guide rail 208, thereby pulling the sunshade curtain 109 to unfold from the middle to both sides. The balloons in the containment space rise evenly under the action of buoyancy, forming a "colorful dome" effect. By controlling the pulling speed of the ropes 204, the sunshade curtain 109 unfolds at a uniform speed, ensuring that the "dome" is uniform. After the flight is completed, the operator pulls the rope 204 in the opposite direction, causing the weight plate 207 to move towards the center until the weight plate 207 is in contact with the limiting baffle on the inner side wall of the square frame. The limiting baffle is embedded in the corresponding groove of the weight plate 207 to form a sealing surface, and the sunshade curtain 109 is completely closed. Then the operator closes the top cover 107 in the reverse order of opening and re-fixes the lifting pole 108 with the locking device.

[0019] like Figure 1-4 As shown: Example 2

[0020] A cluster sun protection timed opening and closing launching device includes a base 101; The casters 102 are fixedly installed at the four corners of the lower surface of the base 101; Four sets of iron mesh outer frames 103 are fixedly installed on the upper surface of the base 101. The four sets of iron mesh outer frames 103 and the base 101 form a storage space for accommodating balloons. A square frame is provided at the top opening of the storage space, and a top cover 107 is provided on the square frame in a symmetrical arrangement. One side of the top cover 107 is hinged to the square frame by a hinge, and the two sides of the top cover 107 are connected to the lifting pole 108 by connecting ropes. A locking component for fixing the lifting rod 108 is fixedly installed on the surface of the outer frame 103 of the iron mesh. The locking component includes a limiting seat that rotates on the surface of the outer frame 103 of the iron mesh near the lifting rod 108 via a rotating seat. A U-shaped groove for placing the lifting rod 108 is provided on one side of the limiting seat. A screw that blocks the opening of the U-shaped groove is threadedly connected to the limiting seat through a threaded hole. The delivery door 105 is located at the lower left corner of the outer frame of the wire mesh 103. The outer frame of the wire mesh 103 has a delivery opening that matches the delivery door 105. The delivery door 105 is located at the delivery opening and is hinged to the outer frame of the wire mesh 103 via a hinge. A latch seat with a hole is fixed to one side of the outer frame of the wire mesh 103 near the delivery door 105. A latch is fixed to the surface of the delivery door 105 and is inserted into the latch seat hole to lock the delivery door 105 and the outer frame of the wire mesh 103 relative to each other. A handle 104 is fixedly installed on the upper part of the outer frame of the wire mesh 103 near the delivery door 105. Sunscreen and heat insulation net 106 is fixedly installed on the inner wall of the outer frame 103 of the iron mesh; The sunshade curtain 109 is symmetrically arranged on the square frame. The curtain frame of the sunshade curtain 109 is fixedly connected to the inner wall of the square frame, and the square frame is fixedly connected to the four sets of iron mesh outer frame 103. A pulling mechanism 2, mounted on a square frame, is used to flexibly drive the opening and closing of two sets of sunshade curtains 109. The pulling mechanism 2 includes a weight plate 207 fixed to the output end of the sunshade curtain 109. Symmetrically arranged guide rails 208 are fixed inside the square frame near the sunshade curtain 109. The two ends of the weight plate 207 slide within guide grooves in the guide rails 208 via rollers. Symmetrically arranged U-shaped seats 201 are fixedly installed on both sides of the square frame. Guide wheels 202 are rotatably mounted inside the U-shaped seats 201 via a rotating shaft. A stop bar 203 is fixedly installed inside the U-shaped seats 201. The two sets of sunshade curtains 109... The structure is designed to slope downwards towards the side that is far apart from each other. The guide rail 208 and the curtain frame of the sunshade curtain 109 are parallel. On the square frame, there are symmetrically arranged L-shaped sleeve rods 205 fixed on a set of sunshade curtains 109. One end of the L-shaped sleeve rod 205 is fixed with a ball sleeve 206. The ball sleeve 206 is located between two sets of weight plates 207. The L-shaped sleeve rod 205 is provided with ropes 204. One end of the two sets of ropes 204 passes through the ball sleeve 206 and is fixedly connected to the weight plate 207 respectively. The other end of the two sets of ropes 204 is wound around the guide wheel 202 and is between the guide wheel 202 and the stop bar 203. A limit baffle is fixedly installed on the inner side wall of the square frame. The two ends of the weight plates 207 on the side that are close to each other are provided with corresponding grooves that are adapted to the limit baffle. When the two sets of weight plates 207 are in contact, the weight plates 207 and the limit baffle form a sealing surface as a whole.

[0021] In this embodiment: the device positioning and fixing steps, balloon filling steps, and top cover 107 opening steps are completely consistent with those in Embodiment 1. When the sunshade curtain 109 is opened and closed and the balloon is released, one operator stands on one side of the device, holding two sets of pre-tied and fixed ropes 204 with both hands. A fixing rod is fixed on the outer frame 103 of the iron net, and the ropes 204 are fixed to the fixing rod with temporary knots. The two sets of sunshade curtains 109 are designed to tilt downwards to the side away from each other. The weight plate 207 has a certain weight. The operator unties the binding and fixing mechanism of the ropes 204, and the weight plate 207 is under its own weight. Under the action of force, the balloon slides to both sides along the inclined guide rail 208 guide groove. The guide rail 208 is parallel to the curtain frame of the sunshade curtain 109 to ensure stable sliding trajectory. Simultaneously, the sunshade curtain 109 is automatically opened, and the balloon rises into the air. During the process, the guide wheel 202 reduces the sliding friction of the rope 204 and avoids the rope 204 getting stuck, which affects the opening speed of the curtain. When the sunshade curtain 109 needs to be closed, the operator pulls the two sets of ropes 204 upwards. Through the transmission of the guide wheel 202, the weight plate 207 is driven to overcome gravity and move towards the middle until it fits with the limit baffle to form a sealing surface, thus completing the closure of the sunshade curtain 109.

[0022] This design employs a fully enclosed cubic wire mesh structure with a lockable launch door 105, and features two layers of protective structure at the top, forming a robust container. This effectively prevents balloons from accidentally escaping during stationary or moving operations due to strong winds, human impact, or environmental disturbances. The internal sun-protective and heat-insulating netting 106 and sunshade curtain 109 together constitute a heat-insulating and sun-protective layer, greatly reducing the risk of balloon shrinkage and rupture caused by high-temperature exposure. It also provides rain protection, ensuring the balloons' integrity before launch and significantly improving the reliability of the operation. By coordinating the opening and closing of the top cover 107, the sunshade curtain 109, and the pulling mechanism 2, a controllable operation is achieved, transitioning from "complete enclosure" to "orderly release." After the operators coordinate their movements to open the top cover 107, they can control the opening speed and amplitude of the sunshade curtain 109 by controlling the rhythm of pulling the rope 204. This allows the balloons to rise evenly and continuously from the device, rather than bursting out all at once. This controllable release method creates a spectacular and orderly "colorful dome" effect, perfectly solving the problem of balloons rising in clusters and chaotically in traditional methods, greatly enhancing the visual impact and the effect of the event celebration.

[0023] It should be noted that: all the contents of the sunshade curtain 109 not described in detail in this specification are existing technologies known to those skilled in the art, and can be designed with an embedded curtain structure. Before using this device, the inside of the guide rail 208 can be cleaned to ensure that the two ends of the weight plate 207 slide smoothly on the guide rail 208 through the rollers during use. The overall weight of the weight plate 207 can be flexibly designed according to the actual use requirements of this device. After the top cover 107 is folded, the position of the lifting lever 108 will change. At this time, the locking device can be set according to the different positions of the lifting lever 108 to ensure the locking of the lifting lever 108. The guide wheel 202 and the ball bearing sleeve 206 both ensure the smoothness of the rope 204, while the corner of the L-shaped sleeve 205 is set with an arc angle to reduce the pulling resistance of the rope 204.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cluster-based, sun-protective, timed-opening and closing release device, characterized in that: Including the base (101); The casters (102) are fixedly installed at the four corners of the lower surface of the base (101); Four sets of iron mesh outer frames (103) are fixedly installed on the upper surface of the base (101). The four sets of iron mesh outer frames (103) and the base (101) form a accommodating space for accommodating balloons. A square frame is provided at the top opening of the accommodating space, and a top cover (107) is provided on the square frame in a symmetrical arrangement. The top cover (107) is connected to a lifting pole (108) on both sides by connecting ropes. The delivery gate (105) is located at the lower left corner of the outer frame (103) of the iron mesh; A sun-protective and heat-insulating net (106) is fixedly installed on the inner wall of the outer frame (103) of the iron mesh; The sunshade curtain (109) is symmetrically arranged on the square frame; The pulling mechanism (2) is located on the square frame and is used to flexibly drive the opening and closing of the two sets of sunshade curtains (109).

2. The cluster sun protection timed opening and closing release device according to claim 1, characterized in that: The outer frame (103) of the iron mesh is provided with a delivery port that is compatible with the delivery door (105). The delivery door (105) is located at the delivery port and is hinged to the outer frame (103) of the iron mesh via a hinge. The outer frame (103) of the iron mesh is fixed with a latch seat with a hole on one side of the delivery door (105). The delivery door (105) is fixed with a latch on its surface.

3. The cluster sun protection timed opening and closing release device according to claim 1, characterized in that: A handle (104) is fixedly installed on the outer frame (103) of the iron mesh near the upper part of the delivery door (105).

4. The cluster sun protection timed opening and closing release device according to claim 2, characterized in that: The top cover (107) is hinged to a square frame on one side by a hinge, the curtain frame of the sunshade curtain (109) is fixedly connected to the inner wall of the square frame, and the square frame is fixedly connected to the four sets of iron mesh outer frames (103).

5. The cluster sun protection timed opening and closing release device according to claim 2, characterized in that: The outer frame (103) of the iron mesh is fixedly installed with a locking component for fixing the lifting rod (108). The locking component includes a limiting seat fixed on the surface of the outer frame (103) near the lifting rod (108). A U-shaped groove for placing the lifting rod (108) is provided on one side of the limiting seat. A screw that blocks the opening of the U-shaped groove is threadedly connected to the limiting seat through a threaded hole.

6. The cluster sun protection timed opening and closing release device according to claim 1, characterized in that: The pulling mechanism (2) includes a weight plate (207) fixed at the output end of the sunshade curtain (109). A guide rail (208) arranged symmetrically is fixed in the square frame near the sunshade curtain (109). The two ends of the weight plate (207) slide in the guide groove opened in the guide rail (208) through roller limit. A U-shaped seat (201) arranged symmetrically is fixedly installed on both sides of the square frame. A guide wheel (202) is rotatably installed in the U-shaped seat (201) through a rotating shaft. A stop bar (203) is fixedly installed in the U-shaped seat (201). Two sets of ropes (204) are provided above the sunshade curtain (109). One end of each set of ropes (204) is fixedly connected to the two sets of weight plates (207), and the other end is wound around the guide wheel (202) and between the guide wheel (202) and the stop bar (203).

7. The cluster sun protection timed opening and closing release device according to claim 1, characterized in that: The pulling mechanism (2) includes a weight plate (207) fixed to the output end of the sunshade curtain (109). A symmetrically arranged guide rail (208) is fixed inside the square frame near the sunshade curtain (109). The two ends of the weight plate (207) slide within the guide grooves of the guide rails (208) via rollers. A symmetrically arranged U-shaped seat (201) is fixedly installed on both sides of the square frame. A guide wheel (202) is rotatably installed inside the U-shaped seat (201) via a rotating shaft. A stop bar (203) is fixedly installed inside the U-shaped seat (201). The two sets of sunshade curtains (109) are designed with an inclined downward structure towards the side furthest from each other. The guide rail (208) and the curtain frame of the sunshade curtain (109) are parallel. On the square frame, there are L-shaped sleeves (205) arranged symmetrically on a set of sunshade curtains (109). One end of the L-shaped sleeve (205) is fixed with a ball sleeve (206). The ball sleeve (206) is located between two sets of weight plates (207). The L-shaped sleeve (205) is provided with a rope (204). One end of the two sets of ropes (204) passes through the ball sleeve (206) and is fixedly connected to the weight plate (207) respectively. The other end of the two sets of ropes (204) is wound around the guide wheel (202) and between the guide wheel (202) and the stop bar (203).

8. The cluster sun protection timed opening and closing flight release device according to claim 6 or 7, characterized in that: A limiting baffle is fixedly installed on the inner side wall of the square frame. The two ends of the weight plate (207) on the side close to each other are provided with corresponding grooves that are adapted to the limiting baffle. When the two sets of weight plates (207) are in contact, the weight plate (207) and the limiting baffle form a sealing surface as a whole.