Simple rain-proof shed with arch-shaped steel frame

Abstract

The utility model discloses a simple dome-shaped steel frame rain-proof shed in the technical field of rain-proof sheds, which comprises a top rod, a plurality of arch-shaped arch bars are fixedly connected onto the top rod, and two ends of the bottom of each arch bar are fixedly connected with main support columns; two oblique crossing type first pull rods are fixedly connected to the main supporting columns located at the two ends of the top rod, the two first pull rods are in an X shape, and second pull rods of the same structure as the first pull rods are arranged on the two sides of the arch rod; drainage grooves are formed in the sides, away from each other, of the upper portions of the main supporting columns, located in the joints of the arch bars and the main supporting columns and communicated with drainage pipes, and the ends, away from the drainage grooves, of the drainage pipes are communicated with a base drainage pipe network. A plurality of fixing assemblies used for fixing a film are arranged on the sides, away from each other, of the main supporting columns. The rain-proof shed is simple in structure, and due to the design of the drainage grooves, the possibility that rainwater flows to the periphery along the top of the rain-proof shed, and water is accumulated around the rain-proof shed can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainproof sheds, in particular to a simple rainproof shed with a round arch steel frame. Background Art

[0002] Rain protection is often required in agricultural production, especially when growing cash crops like grapes. To protect crops from the rain, shelters are necessary. Fresh fruits like jujubes are susceptible to cracking when exposed to rain, reducing their quality. Therefore, shelters are also necessary.

[0003] To this end, the Chinese patent announcement number CN206118595U discloses a rainproof shed for fresh-eating dates, comprising several sections of gate-shaped arch frames fixed side by side in parallel. The gate-shaped arch frames are connected together by three tie rods, and the tie rods are covered with a film. The two ends and shoulders of the gate-shaped arch frames are provided with slots for fixing the film, and the film is tightened by a film pressing line. The tie rods connect the shoulders and the top of the arc surface of the gate-shaped arch frame, and a plurality of steel wires parallel to the tie rods are provided between the tie rods. The steel wires are arranged in parallel at intervals of 1m. The utility model has a large space inside the shed, no columns, is convenient for field operation, has a small investment, a long service life, good rainproof effect, and significantly increases income. It is particularly suitable for use in densely planted date orchards in areas with heavy rainfall, and has great promotion value and application space.

[0004] The above device has a certain rainproof effect, but when the rain is heavy, a large amount of rainwater will flow along the arch to the surroundings of the rainproof awning, thereby the ground around the rainproof awning will have the possibility of water accumulation or damage. Utility Model Content

[0005] In order to solve the above-mentioned problem of rainwater flowing along the top of the rain shelter to the surrounding areas, the purpose of the utility model is to provide a simple rain shelter with a round arch steel frame. Through the design of the drainage trough, the possibility of rainwater flowing along the top of the rain shelter to the surrounding areas and causing water accumulation around the rain shelter can be reduced.

[0006] In order to achieve the above-mentioned object, the technical solution of the utility model is as follows: a simple rainproof shed with a round arch steel frame, comprising a top rod, a plurality of arched arch rods fixedly connected to the top rod, the arch rods being evenly arranged on the top rod, main pillars being fixedly connected to both ends of the bottom of the arch rods, the top rod, the arch rods and the main pillars forming an arched steel frame shed structure; the tops of the arch rods are covered with a film;

[0007] Two oblique first tie rods are fixedly connected to the main pillars at both ends of the top rod, and the two first tie rods are in an "X" shape, with the top end of one of the first tie rods fixedly connected to the top end of the main pillar, and the bottom end of the first tie rod fixedly connected to the bottom end of the opposite main pillar;

[0008] A second tie rod with the same structure as the first tie rod is provided on both sides of the arch rod, wherein one end of one of the second tie rods is fixedly connected to the top of the main support rod at the starting end, and the other end thereof is fixedly connected to the bottom of the main support rod at the end; one end of the other second tie rod is fixedly connected to the bottom of the main support rod at the starting end, and the other end thereof is fixedly connected to the top of the main support rod at the end;

[0009] A drainage trough is provided on the side away from each other on the upper part of the main pillars. The drainage trough is located at the connection between the arch rod and the main pillar. The drainage trough is connected to a drainage pipe, and the end of the drainage pipe away from the drainage trough is connected to the base drainage network; a number of fixing components for fixing the film are provided on the side away from each other on the main pillars.

[0010] The principle of the basic solution is: first install the various components. After installation, the film can be covered on top of the arch rod and fixed through the fixing assembly. Then the top rod can play a certain supporting role on the arch rod, and form an arch structure between each arch rod and the main column, which is convenient for subsequent rain protection. At the same time, the first support rod and the second support rod are arranged in an "X". On the one hand, it can effectively disperse the load of rainwater falling on the film and reduce the knocking vibration of rainwater falling on the film. On the other hand, it has high strength and rigidity in both vertical and horizontal directions; thereby, the rain shelter can be more stable.

[0011] And through the design of the arch rod, when rainwater falls on the top of the membrane, the rainwater will fall into the drainage trough due to gravity. The water in the drainage trough will then flow to the drain pipe, and then the rainwater will be collected in the base drainage network.

[0012] The beneficial effects of the basic scheme are: 1. The simple rainproof shed with a round arch steel frame in this technical scheme is easy to install, economical and practical, stable and durable, and has a wide range of uses. Specifically, the round arch steel frame structure is simple in design and easy to assemble. It does not require special tools and professional skills, and only needs to be simply assembled according to the instructions; and compared with traditional buildings, the construction cost of the simple rainproof shed with a round arch steel frame is relatively low, and the service life is long; the round arch steel frame structure has good self-weight bearing capacity and wind and rain resistance and earthquake resistance, and can withstand the test of harsh climate and natural environment; at the same time, the simple rainproof shed with a round arch steel frame can not only be used for temporary covering, sunshade, rain protection and other functions at the construction site, but can also be used in different fields such as agriculture, fishery, camping, exhibitions, and sports events.

[0013] 2. Compared to existing technologies, the drainage trough design in this technical solution can, on the one hand, reduce the amount of rainwater that falls around the rain shelter and affects its stability on the ground, and on the other hand, reduce the possibility of water accumulation around the rain shelter. At the same time, rainwater can also be collected by a drainage pipe to be reused later.

[0014] Furthermore, the fixing component includes a card slot, which is located at the bottom of the main pillar. A retaining spring is provided in the card slot, and the bottom end of the film is retained in the card slot by the retaining spring.

[0015] The beneficial effect of the basic solution is: when installing the film, first clamp one side of the film in the slot through the retaining spring, then flatten the film on the other side and fix the film on the other side in the slot; the retaining spring in the slot can make the film tightly combined with the arch rod and the main column.

[0016] Furthermore, a "mouth"-shaped support frame is provided at the bottom of the adjacent arch rods, and the four corners of the bottom of the support frame are fixedly connected to the top of the main column respectively, and a number of secondary pillars are fixedly connected to the bottom of the support frame. The secondary pillars are evenly arranged at the bottom of the support frame, and the bottom ends of the secondary pillars and the bottom ends of the main pillars are on the same horizontal line.

[0017] The beneficial effect of the basic solution is that when the main pillar is inserted into the ground, the secondary pillar is also inserted into the ground, so that the rain shelter is stable on the same horizontal line. At the same time, through the design of several secondary pillars, the supporting force at the arch rod can be increased, thereby reducing the pressure on the main pillar after a large amount of rainwater falls, and then dispersing part of the pressure to the secondary pillar, thereby increasing the stability of the device.

[0018] Furthermore, a plurality of oblique hangers are fixedly connected to the top of the support frame. The oblique hangers are evenly and cross-arranged on the top of the support frame, and the ends of the oblique hangers away from the support frame are fixedly connected to the inner bottom wall of the arch rod.

[0019] The beneficial effects of the foundation solution are: it can disperse the pressure on some arch rods and spread the load over a wider area, thereby reducing the vibration and deformation of the structure. At the same time, the oblique hangers can also make the supporting structure stronger, save space, and improve its overall quality.

[0020] Furthermore, a plurality of reinforcing cross bars are provided above the support frame, and both ends of the reinforcing cross bars are respectively fixedly connected to the inner walls of adjacent arch bars.

[0021] The beneficial effect of the basic solution is that because the distance between the two sides of the arch rod is long, the design of the reinforced cross bar can increase the supporting force on both sides of the arch rod and reduce the deformation of the arch rod under pressure.

[0022] Furthermore, the sum of the heights of the main columns and the arch rods is greater than 2m, the height of the main columns is greater than 1.5m, the distance between the two bottom ends of the arch rods is 2.7m, and the distance between adjacent main columns and secondary columns is less than 2m.

[0023] The beneficial effects of the basic scheme are: the sum of the heights of the main columns and the arch rods is greater than 2m, which means that the height of this device is greater than 2m. The design of this height, on the one hand, facilitates the installation of various components, and on the other hand, the height is in a relatively reasonable state within the range of people's sight, and the appearance it presents is full and smooth with a certain aesthetic appeal; at the same time, the height of the main columns is greater than 1.5m, which can not only ensure sufficient space height, but also can easily adapt to buildings of different sizes; the distance between the two bottom ends of the arch rods is 2.7m, which means that the width of this rain shelter is 2.7m. On the one hand, its width can provide a relatively large space so that people can shelter from rain and sunlight when needed, and on the other hand, it is suitable for various environments and places, such as residential, commercial and industrial use. The width of 2.7m is generally considered to be sufficient, does not take up too much space and can provide adequate protection.

[0024] Furthermore, the film thickness is 0.08 mm to 0.12 mm, and the film is a drip-free film; the thickness of the card slot is 0.8 mm to 1.0 mm.

[0025] The basic solution offers the following benefits: A film with a certain thickness provides greater transparency, allowing sunlight to penetrate the film and penetrate deep into the canopy. Furthermore, while maintaining a certain degree of light transmittance, it also possesses a certain degree of toughness, reducing the likelihood of scratches. Furthermore, the film is designed to be drip-free, so when rain falls onto the top of the film, surface tension is controlled to distribute the rainwater in a spherical or cylindrical shape, preventing it from dripping. This reduces the likelihood of large amounts of rainwater accumulating on top of the film and causing it to suddenly topple over. Furthermore, a slot design with the appropriate thickness allows the film to be more stably fixed within the canopy.

[0026] Furthermore, the diameters of the top rod, arch rod, main support, first pull rod, second pull rod, support frame, secondary support, oblique hanger rod and reinforcing cross rod are all 25 mm.

[0027] The beneficial effects of the basic scheme are: through the design of appropriate thickness rods, it can have sufficient bending and bearing capacity, can support a certain weight, and is not easy to deform or break. At the same time, because it conforms to standard dimensions, The 25mm rod can be connected with other accessories, tools or equipment of the same specifications to achieve a more secure assembly or installation effect and effectively improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front cross-sectional view of a simple rainproof shed with a round arch steel frame in an embodiment of the present utility model.

[0029] Figure 2 It is a front view of a simple rainproof shed with a round arch steel frame in an embodiment of the present utility model.

[0030] Figure 3 This is an axonometric view of the support frame of the simple rainproof awning with a round arch steel frame in an embodiment of the present utility model. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The reference numerals in the drawings of the specification include: main support 1, arch rod 2, top rod 3, oblique hanger 4, support frame 5, drainage groove 6, card slot 7, first pull rod 8, reinforcement cross bar 9, and secondary support 10.

[0033] Example 1

[0034] Basically as attached Figure 1-3 As shown: A simple rainproof shed with a round arch steel frame includes a top rod 3, on which a plurality of arched arch rods 2 are fixedly connected by bolts. The arch rods 2 are evenly arranged at the bottom of the top rod 3, and both ends of the bottom of the arch rod 2 are fixedly connected to the main support 1 by bolts. The top rod 3, the arch rod 2 and the main support 1 form an arched steel frame shed structure; the top of the arch rod 2 is covered with a film;

[0035] Two oblique first tie rods 8 are fixedly connected to the main pillars 1 at both ends of the top rod 3 by bolts, and the two first tie rods 8 are in an "X" shape. The top end of one of the first tie rods 8 is fixedly connected to the top end of the main pillar 1 by bolts, and the bottom end of the first tie rod 8 is fixedly connected to the bottom end of the opposite main pillar 1 by bolts;

[0036] A second tie rod with the same structure as the first tie rod 8 is provided on both sides of the arch rod 2, wherein one end of one of the second tie rods is fixedly connected to the top of the main support rod at the starting end by a bolt, and the other end thereof is fixedly connected to the bottom of the main support rod at the end by a bolt, and one end of the other second tie rod is fixedly connected to the bottom of the main support rod at the starting end by a bolt, and the other end thereof is fixedly connected to the top of the main support rod at the end by a bolt;

[0037] The upper part of the main pillars 1 is fixed with a drainage trough 6 on the side away from each other by bolts. The drainage trough 6 is located at the connection between the arch rod 2 and the main pillar 1. The drainage trough 6 is connected to a drainage pipe, and the end of the drainage pipe away from the drainage trough 6 is connected to the base drainage network; the main pillars 1 are provided with a number of fixing components for fixing the film on the side away from each other.

[0038] The specific implementation process is as follows: when using this rainproof awning, first install the various components. After installation, the film can be covered on top of the arch rod 2 and fixed through the fixing assembly. Then the top rod 3 can play a certain supporting role on the arch rod 2, and form an arch structure between each arch rod 2 and the main column, which is convenient for subsequent rain protection. At the same time, the first support rod and the second support rod are arranged in an "X". On the one hand, it can effectively disperse the load of rainwater falling on the film and reduce the knocking vibration of rainwater falling on the film. On the other hand, it has high strength and rigidity in both vertical and horizontal directions; thereby, this rainproof awning can be more stable.

[0039] Furthermore, due to the design of the arch rod 2, when rainwater falls on the top of the film, it will fall into the drainage groove 6 under gravity, and the water in the drainage groove 6 will flow to the drainage pipe, and then the rainwater will be collected in the drainage network at the base. On the one hand, it can reduce a large amount of rainwater falling around the rain shelter and affecting the stability of the rain shelter on the ground, and on the other hand, it can reduce the possibility of water accumulation around the rain shelter. At the same time, the rainwater can also be collected by the drainage pipe to a certain extent, and the collected rainwater can be reused later.

[0040] Therefore, the simple rain shelter with a round arch steel frame in the present technical solution has the characteristics of easy installation, economical and practical, stable and durable, and a wide range of uses. Specifically, the simple rain shelter with a round arch steel frame is simple in design and easy to assemble. It does not require special tools and professional skills, and only needs to be simply assembled according to the instructions. Compared with traditional buildings, the construction cost of the simple rain shelter with a round arch steel frame is relatively low, and the service life is long. The round arch steel frame structure has good self-weight bearing capacity and wind, rain and earthquake resistance, and can withstand the test of harsh climate and natural environment. At the same time, the simple rain shelter with a round arch steel frame can not only be used for temporary covering, sunshade, rain protection and other functions at the construction site, but can also be used in different fields such as agriculture, fishery, camping, exhibitions, and sports events.

[0041] Example 2

[0042] The difference from the above embodiment is that the fixing component includes a slot 7, which is located at the bottom of the main pillar 1. A retaining spring is provided in the slot 7, and the bottom end of the film is retained in the slot 7 by the retaining spring.

[0043] The specific implementation process is as follows: when installing the film, first clamp one side of the film in the slot 7 through the clamping spring, then flatten the film on the other side and fix the film on the other side in the slot 7; the clamping spring in the slot 7 can allow the film to be tightly combined with the arch rod 2 and the main column.

[0044] Example 3

[0045] The difference from the above embodiment is that a "mouth"-shaped support frame 5 is provided at the bottom of the adjacent arch rod 2, and the four corners of the bottom of the support frame 5 are fixedly connected to the top of the main column by bolts, and a number of secondary pillars 10 are fixedly connected to the bottom of the support frame 5 by bolts. The secondary pillars 10 are evenly arranged at the bottom of the support frame 5, and the bottom ends of the secondary pillars 10 are on the same horizontal line as the bottom ends of the main pillars 1.

[0046] The specific implementation process is as follows: when the main pillar 1 is inserted into the ground, the secondary pillar 10 is also inserted into the ground to stabilize the rain shelter on the same horizontal line. At the same time, through the design of several secondary pillars 10, the supporting force at the arch rod 2 can be increased, thereby reducing the pressure on the main pillar 1 after a large amount of rainwater falls, and then dispersing part of the pressure to the secondary pillars 10, thereby increasing the stability of the device.

[0047] Example 4

[0048] The difference from the above embodiment is that a number of oblique hangers 4 are fixedly connected to the top of the support frame 5 by bolts, the oblique hangers 4 are evenly and cross-arranged on the top of the support frame 5, and the ends of the oblique hangers 4 away from the support frame 5 are fixedly connected to the inner bottom wall of the arch rod 2 by bolts.

[0049] The specific implementation process is as follows: Through the design of the oblique hanger 4, the pressure on part of the arch rod 2 can be dispersed, and the load can be dispersed to a wider area, thereby reducing the vibration and deformation of the structure. At the same time, the oblique hanger 4 can also make the supporting structure more solid, save space, and improve its overall quality.

[0050] Example 5

[0051] The difference from the above embodiment is that a plurality of reinforcing cross bars 9 are provided above the support frame 5 , and both ends of the reinforcing cross bars 9 are fixedly connected to the inner walls of adjacent arch bars 2 by bolts.

[0052] The specific implementation process is as follows: because the distance between the two sides of the arch rod 2 is long, the design of the reinforcing cross bar 9 can increase the supporting force on both sides of the arch rod 2 and reduce the deformation of the arch rod 2 under pressure.

[0053] Example 6

[0054] The difference from the above embodiment is that the sum of the heights of the main columns and the arch rods 2 is greater than 2m, the height of the main columns is greater than 1.5m, the distance between the two bottom ends of the arch rods 2 is 2.7m, and the distance between adjacent main columns and secondary columns is less than 2m.

[0055] The specific implementation process is as follows: the sum of the heights of the main columns and the arch rod 2 is greater than 2m, which means that the height of this device is greater than 2m. The design of this height, on the one hand, is convenient for the installation of various components, and on the other hand, the height is in a relatively reasonable state within the range of people's sight, and the appearance it presents is full and smooth with a certain aesthetic appeal; at the same time, the height of the main columns is greater than 1.5m, which can not only ensure sufficient space height, but also can easily adapt to buildings of different sizes; the distance between the two bottom ends of the arch rod 2 is 2.7m, which means that the width of this rain shelter is 2.7m. On the one hand, its width can provide a relatively large space so that people can avoid rain and sunlight when needed, and on the other hand, it is suitable for various environments and places, such as residential, commercial and industrial use. The width of 2.7m is generally considered to be sufficient, will not take up too much space and can provide sufficient protection.

[0056] Example 7

[0057] The difference from the above embodiment is that the film thickness is 0.08mm-0.12mm, and the film is preferably a drip-free film; the thickness of the slot 7 is 0.8mm-1.0mm, and the slot 7 is preferably a hot-dip galvanized slot 7 or an aluminum alloy slot 7.

[0058] The specific implementation process is as follows: By designing a film of a certain thickness, on the one hand, it provides higher transparency, thereby allowing external sunlight to penetrate the film and illuminate the interior of the rain shelter. On the other hand, it has a certain degree of light transmittance while also maintaining a certain degree of toughness, thereby reducing the possibility of scratches. Furthermore, the film is designed to be drip-free. Therefore, when rain falls on the top of the film, the surface tension is controlled to make the rainwater distribute on the surface in a spherical or cylindrical shape, preventing it from dripping. This reduces the possibility of large amounts of rainwater accumulating on the top of the film and suddenly toppling over. Furthermore, the design of the slot 7 of appropriate thickness ensures that the film is more stably fixed therein.

[0059] Example 8

[0060] The difference from the above embodiment is that the diameters of the top rod 3, the arch rod 2, the main support 1, the first pull rod 8, the second pull rod, the support frame 5, the secondary support 10, the oblique suspension rod 4 and the reinforcing cross bar 9 are all 25 mm.

[0061] The specific implementation process is as follows: through the design of appropriate thickness rods, it can have sufficient bending and load-bearing capacity, can support a certain weight, and is not easy to deform or break. At the same time, because it conforms to the standard size, The 25mm rod can be connected with other accessories, tools or equipment of the same specifications to achieve a more secure assembly or installation effect and effectively improve stability.

[0062] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0063] The above is only an embodiment of the present utility model. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A simple rainproof shed with a round arch steel frame, characterized by: It includes a top rod, a plurality of arched arch rods are fixedly connected to the top rod, the arch rods are evenly arranged on the top rod, and both ends of the bottom of the arch rod are fixedly connected to the main pillars. The top rod, the arch rod and the main pillars form an arched steel frame shed structure; the top of the arch rod is covered with a film; Two oblique first tie rods are fixedly connected to the main pillars at both ends of the top rod, and the two first tie rods are in an "X" shape. The top end of one of the first tie rods is fixedly connected to the top end of the main pillar, and the bottom end of the first tie rod is fixedly connected to the bottom end of the opposite main pillar. A second tie rod with the same structure as the first tie rod is provided on both sides of the arch rod, wherein one end of one of the second tie rods is fixedly connected to the top of the main support rod at the starting end, and the other end thereof is fixedly connected to the bottom of the main support rod at the end; one end of the other second tie rod is fixedly connected to the bottom of the main support rod at the starting end, and the other end thereof is fixedly connected to the top of the main support rod at the end; A drainage trough is provided on the side away from each other on the upper part of the main pillars. The drainage trough is located at the connection between the arch rod and the main pillar. The drainage trough is connected to a drainage pipe, and the end of the drainage pipe away from the drainage trough is connected to the base drainage network; a number of fixing components for fixing the film are provided on the side away from each other on the main pillars.

2. The simple rainproof canopy with a round arch steel frame according to claim 1, characterized in that: The fixing component includes a card slot, which is located at the bottom of the main pillar. A clip spring is provided in the card slot, and the bottom end of the film is clamped in the card slot through the clip spring.

3. The simple rainproof canopy with a round arch steel frame according to claim 2, characterized in that: A "mouth"-shaped support frame is provided at the bottom of the adjacent arch rods. The four corners of the bottom of the support frame are fixedly connected to the top of the main column respectively, and a number of secondary pillars are fixedly connected to the bottom of the support frame. The secondary pillars are evenly arranged at the bottom of the support frame, and the bottom ends of the secondary pillars are on the same horizontal line as the bottom ends of the main pillars.

4. The simple rainproof canopy with a round arch steel frame according to claim 3, characterized in that: A plurality of oblique hangers are fixedly connected to the top of the support frame. The oblique hangers are evenly and cross-arranged on the top of the support frame, and the ends of the oblique hangers away from the support frame are fixedly connected to the inner bottom wall of the arch rod.

5. The simple rainproof canopy with a round arch steel frame according to claim 4, characterized in that: A plurality of reinforcing cross bars are provided above the support frame, and both ends of the reinforcing cross bars are fixedly connected to the inner walls of adjacent arch bars.

6. The simple rainproof canopy with a round arch steel frame according to claim 5, characterized in that: The sum of the heights of the main columns and arch rods is greater than 2m, the height of the main columns is greater than 1.5m, the distance between the two bottom ends of the arch rods is 2.7m, and the distance between adjacent main columns and secondary columns is less than 2m.

7. The simple rainproof canopy with a round arch steel frame according to claim 6, characterized in that: The thickness of the film is 0.08mm to 0.12mm, and the film is a drip-free film; the thickness of the card slot is 0.8mm to 1.0mm.

8. The simple rainproof canopy with a round arch steel frame according to claim 7, characterized in that: The diameters of the top rod, arch rod, main support, first pull rod, second pull rod, support frame, secondary support, oblique hanger rod and reinforcing cross bar are all 25mm.

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