CN113931284A

CN113931284A - Rainwater grate and louver blade

Info

Publication number: CN113931284A
Application number: CN202111217811.3A
Authority: CN
Inventors: 刘锡禹; 刘锡尧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-01-14
Anticipated expiration: 2041-10-19
Also published as: CN113931284B

Abstract

The invention provides a rainwater grate and louver blades, the rainwater grate includes: braced frame, a plurality of shutter blade, collection rain structure, counter weight structure, braced frame includes: the left fixing plate and the right fixing plate are transversely arranged oppositely; the louver blades are provided with two rotating shafts; two first connecting lugs are arranged at the position, close to the rear, of the upper surface of each louver blade; two second connecting lugs are arranged at the position, close to the front, of the upper surface of each louver blade, and the transverse distance between the two second connecting lugs is larger than the transverse distance between the two first connecting lugs; rain collection structure includes: the rain collecting container comprises a rain collecting container, a first suspension bottom plate and a plurality of first suspension connecting rods positioned on the left side and the right side of the rain collecting container; the counter weight structure of rainwater grate includes: the second hangs bottom plate, lower extreme and connects a plurality of second that hangs the connecting rod at the second hangs bottom plate left and right sides. This application has the advantages such as prevent silting up, prevent empting, prevent stink, and the drainage is efficient, has saved the manpower.

Description

Rainwater grate and louver blade

Technical Field

The invention relates to the technical field of drainage, in particular to a rainwater grate and louver blades.

Background

Urban inland inundation brings great inconvenience to the lives of residents, and the reasons for the urban inland inundation mainly include two reasons: on one hand, the rapid expansion of the urban scale aggravates the occurrence of a rain island effect, so that local heavy rain with small range and high intensity frequently occurs; on the other hand, the development of urban drainage systems is seriously delayed from the rapid expansion speed of cities, and drainage tools are generally not advanced enough. One of the common drainage tools of the rain strainer, however, the current rain strainer has at least one of the following problems:

1) clogging is easy to occur, leaves, silt and domestic garbage are accumulated, and only regular manual inspection and cleaning can be performed;

2) the drainage capacity is limited, the drainage requirement in case of heavy rainfall cannot be met, and the drainage sectional area of most of the rainwater grates is only 45-60% of that of the rainwater grates;

3) if the rainfall is large, the rainwater grate can be opened manually only, and a large amount of manpower is consumed.

Disclosure of Invention

The embodiment of the invention provides a rainwater grate and a louver blade, which aim to overcome or alleviate the problems.

The technical scheme adopted by the invention is as follows:

a rain water grate comprises a grate body,

a support frame, the support frame comprising: the left fixing plate and the right fixing plate are transversely arranged oppositely;

a plurality of shutter blades, wherein:

each louver blade is provided with two rotating shafts, the two rotating shafts are arranged at positions close to the front side of the corresponding louver blade and far away from the rear side of the corresponding louver blade, one rotating shaft is positioned at the left side of the louver blade and is rotationally connected with the left side fixing plate, and the other rotating shaft is positioned at the right side of the louver blade and is rotationally connected with the right side fixing plate;

two first connecting lugs are arranged at the position, close to the rear, of the upper surface of each louver blade, one first connecting lug is close to the left fixing plate, and the other first connecting lug is close to the right fixing plate;

two second connecting lugs are arranged at the position, close to the front, of the upper surface of each louver blade, one second connecting lug is close to the left fixing plate, the other second connecting lug is close to the right fixing plate, and the transverse distance between the two second connecting lugs is larger than that between the two first connecting lugs;

rain collection structure, rain collection structure is located a plurality of tripe blade below, rain collection structure includes: the rain collecting device comprises a rain collecting container, a first suspension bottom plate and a plurality of first suspension connecting rods positioned on the left side and the right side of the rain collecting container, wherein the rain collecting container is borne on the first suspension bottom plate; wherein:

the lower end of any first suspension connecting rod positioned on the left side of the rain collecting container is connected with the left side of the first suspension bottom plate, and the upper end of the first suspension connecting rod is connected with a first connecting lug close to the left side fixing plate;

the lower end of any first suspension connecting rod positioned on the right side of the rain collecting container is connected with the right side of the first suspension bottom plate, and the upper end of the first suspension connecting rod is connected with a first connecting lug close to the right side fixing plate;

counter weight structure, counter weight structure are located collection rain structure below, counter weight structure includes: the second hangs bottom plate, the lower extreme is connected a plurality of second of the second left and right sides of hanging the bottom plate hangs the connecting rod, wherein:

and any second suspension connecting rod positioned on the left side is connected with the second connecting lug close to the left side fixing plate, and any second suspension connecting rod positioned on the right side is connected with the second connecting lug close to the right side fixing plate.

A louver blade is provided with two rotating shafts, the two rotating shafts are arranged close to the front side of the corresponding louver blade and far away from the rear side of the corresponding louver blade, one rotating shaft is arranged on the left side of the louver blade and is rotationally connected with a left side fixing plate, and the other rotating shaft is arranged on the right side of the louver blade and is rotationally connected with a right side fixing plate;

two first connecting lugs are arranged at the position, close to the rear, of the upper surface of the louver blade, one first connecting lug is close to the left fixing plate, and the other first connecting lug is close to the right fixing plate;

two second engaging lugs are arranged at the positions, close to the front, of the upper surfaces of the louver blades, one of the second engaging lugs is close to the left side fixing plate, the other second engaging lug is close to the right side fixing plate, and the transverse distance between the two second engaging lugs is larger than the transverse distance between the two first engaging lugs.

The "number" appearing herein means "two or more", i.e. at least 2. The rainwater grate comprises a supporting frame, a plurality of louver blades, a rainwater collecting structure and a counterweight structure, wherein each louver blade is provided with a rotating shaft so as to be rotatably connected with the supporting frame; when rainwater collected in the rainwater collection structure enables the counter weight of the rainwater collection structure to be larger than or equal to the counter weight of the counter weight structure, the plurality of louver blades rotate anticlockwise around the corresponding rotating shafts, so that the rainwater grate is opened, rainwater enters an underground pipeline through the rainwater grate, and when the counter weight of the rainwater collection structure is smaller than the counter weight of the counter weight structure, the plurality of louver blades rotate clockwise around the corresponding rotating shafts, so that the rainwater grate is closed, and therefore the rainwater collection structure has the advantages that:

1. the shutter type structure is adopted, the shutter is closed at ordinary times, leaves, silt and domestic garbage can be prevented from entering the shutter type structure, and the shutter type structure has the advantages of silt prevention, toppling prevention, odor prevention and the like.

2. The design of two-layer link mechanism is adopted, the instability of the parallelogram is fully utilized, the louver can be opened quickly in the rainy period by utilizing the counterweight difference of force between rainwater and counterweight, the drainage efficiency is high, the manual opening operation is not needed, and the manpower is saved.

Drawings

Fig. 1A is one of schematic three-dimensional structures of a rain grate in an embodiment of the present application;

fig. 1B is a second schematic perspective view illustrating a rain grate according to an embodiment of the present application;

fig. 2A is a schematic structural diagram of the left fixing plate or the right fixing plate in the embodiment of the present application;

fig. 2B is a schematic structural view of a first side plate in the embodiment of the present application;

fig. 2C is a schematic structural diagram of a second side plate in the embodiment of the present application;

FIG. 2D is a schematic structural diagram of a cover plate according to an embodiment of the present disclosure;

FIG. 3A is a schematic structural diagram of the first suspension mat according to the embodiment of the present application;

fig. 3B is a second schematic structural view of the first suspension baseplate in the embodiment of the present application;

FIG. 3C is a schematic view of a first suspension rail according to an embodiment of the present disclosure;

FIG. 3D is a schematic view of a first suspension support bar according to an embodiment of the present disclosure;

fig. 3E is a second schematic structural view of the first suspension support rod in the embodiment of the present application;

FIG. 4 is a schematic structural view of the second suspension mat according to an embodiment of the present application;

FIG. 5A is a schematic view of a composite suspension strut according to an embodiment of the present disclosure;

fig. 5B is a second schematic structural diagram of a suspension support rod of a composite structure in an embodiment of the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The rainwater grate comprises a supporting frame, a plurality of louver blades, a rainwater collecting structure and a counterweight structure, wherein each louver blade is provided with a rotating shaft so as to be rotatably connected with the supporting frame; when rainwater collected in the rainwater collection structure enables the counter weight of the rainwater collection structure to be larger than or equal to the counter weight of the counter weight structure, the plurality of louver blades rotate anticlockwise around the corresponding rotating shafts, so that the rainwater grate is opened, rainwater enters an underground pipeline through the rainwater grate, and when the counter weight of the rainwater collection structure is smaller than the counter weight of the counter weight structure, the plurality of louver blades rotate clockwise around the corresponding rotating shafts, so that the rainwater grate is closed, and therefore the rainwater collection structure has the advantages that:

The following embodiments exemplarily illustrate the rainwater grate provided in the embodiments of the present application.

Fig. 1A is one of schematic three-dimensional structures of a rain grate in an embodiment of the present application; fig. 1B is a second schematic perspective view illustrating a rain grate according to an embodiment of the present application; as shown in fig. 1A and 1B, the rainwater grate includes: the rain collecting structure comprises a supporting frame 101, a plurality of louver blades 102, a rain collecting structure 103 and a counterweight structure 104, wherein the rain collecting structure 103 is located below the louver blades 102, and the counterweight structure 104 is located below the rain collecting structure 103.

Wherein the supporting frame 101 includes: a left fixing plate 111 and a right fixing plate 121 which are transversely arranged oppositely, and a front fixing plate and a rear fixing plate (not shown) which are longitudinally arranged oppositely. Here, since the louver blades 102 are not provided on the front fixing plate and the rear fixing plate, they may be omitted in some application scenarios and may be replaced by a ground structure.

Each louver blade 102 is provided with two rotating shafts 112, the two rotating shafts 112 are disposed near the front side of the corresponding louver blade 102 and far away from the rear side of the corresponding louver blade 102, one of the rotating shafts 112 is disposed at the left side of the louver blade 102 and is rotatably connected to the left fixing plate 111, and the other rotating shaft 112 is disposed at the right side of the louver blade 102 and is rotatably connected to the right fixing plate 121.

Through the arrangement positions of the two rotating shafts 112 close to the front side of the corresponding louver blade 102 and far away from the rear side of the corresponding louver blade 102, rear and front position points are formed on each louver blade, which is equivalent to that two lever supporting points are arranged for each louver blade 102, so that the louver blade 102 can rotate anticlockwise or clockwise when a counterweight difference is formed between the front side and the rear side of the louver blade 102, and the rainwater grate is in an open state or a closed state.

Illustratively, the rotational shaft 112 on each louver 102 is preferably integrally formed with the body of the louver 102, thereby ensuring the overall rigidity of the louver 102.

Illustratively, the rotating shaft 112 is circular in cross-section; of course, alternatively, the cross-section of the rotating shaft 112 is

Two first connecting lugs 122 are arranged at the rear position of the upper surface of each louver blade 102, wherein one first connecting lug 122 is close to the left fixing plate 111, and the other first connecting lug 122 is close to the right fixing plate 121.

Illustratively, the first connecting lug 122 is provided with a through hole, and the shape of the through hole is not particularly limited, so as to be connected with the first suspension link 133 by means of a pin joint, thereby reducing the complexity of the structural design and the difficulty of construction.

Two second engaging lugs 132 are disposed at a position forward of the upper surface of each louver blade 102, wherein one second engaging lug 132 is close to the left fixing plate 111, the other second engaging lug 132 is close to the right fixing plate 121, and the lateral distance between the two second engaging lugs 132 is greater than the lateral distance between the two first engaging lugs 122, thereby facilitating the free rotation of the louver blade without occurrence of jamming of the shutter blade. For example, referring to fig. 1B, the suspension link 133 and the suspension link 124 are driven to rotate freely, and no motion jamming occurs.

Specifically, as previously described, the louver blades 102 may rotate either counter-clockwise or clockwise.

Illustratively, the second engaging lug 132 is also provided with a through hole, and the shape of the through hole is not particularly limited, so as to facilitate the connection with the second suspension link 124 by means of a pin joint, thereby reducing the complexity of the structural design and the difficulty of construction.

In this embodiment, the rain collecting structure 103 includes: the rain collecting container 113, the first suspension bottom plate 123 and the first suspension connecting rods 133 are positioned on the left side and the right side of the rain collecting container 113, and the rain collecting container 113 is carried on the first suspension bottom plate 123.

It should be noted that in the embodiment of the present application, the rain collecting container 113 is a large structural body, in other embodiments, there may be a plurality of small structural bodies, each of the small structural bodies corresponds to one rain collecting container 113, for example, there are three rain collecting containers 113, one of which is located in the middle of the first hanging bottom plate 123, and the other two rain collecting containers 113 are respectively disposed near both ends of the first hanging bottom plate 123.

Illustratively, the rain collecting container 113 is used for receiving part of rainwater, and the shape of the rain collecting container 113 may be customized according to application requirements, and may also be cylindrical or rectangular. In addition, the bottom surface of the rain collecting container 113 may be a flat surface or an inclined surface. When the bottom surface of the rain collecting container 113 is an inclined surface, the speed of flowing water can be accelerated, impurities can be discharged along the inclined surface, and the cleaning efficiency of the rain collecting container 113 is improved.

In the rain collecting structure 103, the lower end of any first hanging link 133 located on the left side of the rain collecting container 113 is connected to the left side of the first hanging bottom plate 123, and the upper end thereof is connected to the first connecting lug 122 near the left fixing plate 111. In the rain collecting structure 103, a lower end of any one of the first hanging links 133 located on the right side of the rain collecting container 113 is connected to the right side of the first hanging bottom plate 123, and an upper end thereof is connected to the first connecting lug 122 near the right fixing plate 121. In this way, a plurality of first hanging links 133 are respectively disposed on the left and right sides of the rain collecting container 113, so that the rain collecting container 113 is fixed from the left side, and the rain collecting container 113 is stably fixed on the first hanging bottom plate 123.

Illustratively, the connection, preferably the articulation, of the first suspension link 133 with the first connecting ear 122 cooperates with the rotation of the louver blades 102.

For example, the shape and number of the first hanging links 133 are not particularly limited as long as they can cooperate with the first hanging bottom plate 123 to carry the rain collecting container 113.

For example, the shape of the first hanging bottom plate 123 is not particularly limited as long as it can be used to support the rain collecting container 113 in cooperation with the first hanging link 133.

The counterweight structure includes: a second suspension base plate 114, and a plurality of second suspension links 124 having lower ends connected to left and right sides of the second suspension base plate 114.

In the counterweight structure, the second suspension link 124 on the left side is connected to the second engaging lug 132 adjacent to the left side fixing plate 111, and the second suspension link 124 on the right side is connected to the second engaging lug 132 adjacent to the right side fixing plate 121.

Illustratively, the connection, preferably the articulation, of the second suspension link 124 to the second attachment ear 132.

In addition, since the lateral distance between the second connecting lugs 132 is greater than the lateral distance between the first connecting lugs 122, and the second connecting lugs 133 and the second hanging connecting rods 124 are matched, it is ensured that a gap is formed between the louver blades without rotating the louver blades when the rain is low, thereby facilitating the water passing.

Of course, in some other embodiments, if it is required that the louver blades have no or small gaps between the louver blades when the louver blades are not rotated, an elongated hole may be formed in the louver blades for the second suspension link 124 to pass through to connect with the second connecting lug 132, and water passing through the elongated hole is realized. Illustratively, either one of the left fixing plate 111 and the right fixing plate 121 is a fixing plate of a composite structure, and the fixing plate of the composite structure includes: the apron (including upper cover plate, lower apron), many first curb plates, many second curb plates.

Fig. 2A is a schematic structural diagram of the left fixing plate or the right fixing plate in the embodiment of the present application; fig. 2B is a schematic structural view of a first side plate in the embodiment of the present application; fig. 2C is a schematic structural diagram of a second side plate in the embodiment of the present application; FIG. 2D is a schematic structural diagram of a cover plate according to an embodiment of the present disclosure;

as shown in fig. 2A, a second side plate 1113 is arranged on the inner side and the outer side of the fixed plate of the composite structure; between the inner side and the outer side of the fixing plate of the composite structure, the first side plate 1112 and the second side plate 1113 are arranged at an interval, so that the through hole on the cover plate is clamped with the tooth structure.

As shown in fig. 2D, the cover plate is provided with a through hole; as shown in fig. 2B, the upper and lower end surfaces of each first side plate 1112 are provided with a plurality of protruding tooth structures; the tooth structure is matched with the through hole in shape, as shown in fig. 2D and 2B, the tooth structure is similar to a convex shape, and the through hole matched with the tooth structure is a long through hole, so that the tooth structure is embedded into the through hole matched with the tooth structure. In addition, the strength of the attachment point of the cover plate to the first side plate 1112 is increased by this protruding tooth structure.

As shown in fig. 2C, the upper and lower end surfaces of each second side plate 1113 are planar structures, so that when the second side plate 1112 is disposed at an interval, one second side plate 1113 can be clamped between the two first side plates 1112, and then the structural strength of the fixing plate of the composite structure is ensured through the engaging relationship between the tooth structure and the through hole, which is convenient for assembly and maintenance.

As shown in fig. 2B and 2C, the first side plate 1112 and the second side plate 1113 are further provided with a plurality of through holes, and the rotating shaft is inserted into the through holes to rotatably connect the rotating shaft and the fixing plate of the composite structure.

Similarly, for the front fixing plate and the rear fixing plate, the structure thereof is similar to the left fixing plate and the right fixing plate, and the description thereof is omitted.

Illustratively, the first suspension bottom plate is a frame structure, and the frame structure comprises a plurality of first suspension cross bars and first suspension support bars.

FIG. 3A is a schematic structural diagram of the first suspension mat according to the embodiment of the present application; fig. 3B is a second schematic structural view of the first suspension baseplate in the embodiment of the present application; FIG. 3C is a schematic view of a first suspension rail according to an embodiment of the present disclosure; fig. 3D is a first schematic structural diagram of the first suspension support rod in the embodiment of the present application, and fig. 3E is a second schematic structural diagram of the first suspension support rod in the embodiment of the present application.

As shown in fig. 3A to 3E, the first suspension base plate is a frame structure, the frame structure includes a plurality of first suspension cross rods 1231 and first suspension support rods 1232 respectively located at the left side and the right side of the frame structure, and the plurality of first suspension cross rods 1231 are transversely connected between the first suspension support rods 1232 at the left side and the right side, so that the first suspension cross rods 1231 are arranged between the first suspension support rods 1232 at the left side and the right side in the direction from the left side to the right side, and the structural stability of the first suspension base plate is increased.

The specific form of the first hanging rail 1231 and the first hanging support bar 1232 is not limited as long as it can function to stably support the rain collecting container.

Referring to the above fig. 3C and 3D, the two ends of the first hanging cross rod 1231 are provided with the clamping ends, and the first hanging support rod 1232 is provided with a plurality of clamping through holes, through which the clamping ends are clamped in the corresponding clamping through holes, so that the first hanging cross rod 1231 and the first hanging support rod 1232 are stably connected.

Referring to the above 3D, the first hanging support bar 1232 is also provided with a tooth structure, and the tooth structure corresponds to the clamping through hole at the position of the first hanging support bar 1232, so that the structural enhancement is provided at each connecting point of the first hanging support bar 1232 and the first hanging cross bar 1231, and the structural stability and the connection strength of the connecting points are ensured.

Illustratively, the second suspension bottom plate is a frame structure, and the frame structure comprises a plurality of second suspension cross bars and second suspension support bars.

FIG. 4 is a schematic structural view of the second suspension mat according to an embodiment of the present application; the second suspension rail 1141 has the same structure as the first suspension rail; the second hanging support bar 1142 has the same structure as the first hanging support bar.

The second hangs the bottom plate and is the frame structure body, the frame structure body includes that a plurality of second hangs horizontal pole 1141 and is located respectively the second of frame structure body left side and right side hangs bracing piece 1142, a plurality of second hangs horizontal pole 1141 transverse connection between the second of left side and right side hangs bracing piece 1142 to realized hanging horizontal pole 1141 with the second and hung between the second of left and right sides according to the direction setting from left side to right side hanging bracing piece 1142, thereby increased the structural stability that the second hung the bottom plate.

The specific configuration of the second hanging cross bar 1141 and the second hanging support bar 1142 is not limited as long as they can function as a part of the weight of the louver blade.

The second hangs horizontal pole 1141 both ends and is provided with the joint end, and hangs bracing piece 1142 at the second and be provided with a plurality of joint through-holes, through with joint end joint is in the joint through-hole that corresponds to realized the second hang horizontal pole 1141 with the second hangs the bracing piece 1142 and stabilizes and is connected.

The second hanging support bar 1142 is also provided with a tooth structure, and the tooth structure corresponds to the clamping through hole at the position of the second hanging support bar 1142, so that the structural enhancement is arranged at each connecting point of the second hanging support bar 1142 and the second hanging cross bar 1141, and the structural stability and the connection strength of the connecting points are ensured.

Illustratively, any of the first and second suspension support bars 1142 is a suspension support bar of a composite structure.

FIG. 5A is a schematic view of a composite suspension strut according to an embodiment of the present disclosure; FIG. 5B is a second schematic view of the composite suspension strut in the embodiment of the present application; as shown in fig. 5A and 5B, the suspension support rod of the composite structure includes two suspension supports 12321 having a plurality of first suspension through holes; for any type of the plurality of first suspension crossbars 1231 and the plurality of second suspension crossbars 1142, it passes through the plurality of first suspension through holes a to be connected between the first suspension support rods 1232 on the left and right sides, or the plurality of second suspension crossbars 1142 are transversely connected between the second suspension support rods on the left and right sides. The first hanging through hole serves as the clamping through hole.

Further, as shown in fig. 5A, each of the suspension support rods of the composite structure further includes a plurality of second suspension through holes B; and for any one of the first suspension connecting rod and the second suspension connecting rod, a third suspension through hole C is formed in the lower end of the first suspension connecting rod and the second suspension connecting rod, and when the first suspension connecting rod is connected to the first suspension bottom plate and the second suspension connecting rod is connected to the second suspension bottom plate, the third suspension through hole C is positioned between the two second suspension through holes B and forms a through hole structure. And the second hanging through hole and the third hanging through hole are fixed together in a pin joint mode, so that the stability and the strength of the structure are ensured.

Based on the above-mentioned figures, it can be seen that, because the transverse distance between two second engaging lugs 132 is greater than the transverse distance between two first engaging lugs 122, it is nested in the counterweight structure to realize the rain-collecting structure, and set up the rotation axis according to the front side that is close to corresponding shutter blade, the mode of keeping away from the rear side that corresponds shutter blade to counter-clockwise or clockwise rotation takes place when having guaranteed shutter blade front and back both sides form the counterweight difference, thereby make the rainwater grate present the open mode, perhaps closed mode.

In addition, the positions of the rain collection container 113 and the counterweight placed by the counterweight structure 104 are not particularly limited, for example, if the rain collection container 113 is placed in the middle of the first suspension base 123, the counterweight may be placed near both ends of the second suspension base 114; if rain containers 113 are placed near both ends of first suspension bedplate 123, a counterweight may be in the middle of second suspension bedplate 114. This is by way of example only and not by way of limitation.

In the above embodiment, the two rotation shafts are disposed close to the front side of the corresponding louver blade and far away from the rear side of the corresponding louver blade to form a lever structure with a preset force-to-arm ratio, so that in rainy days, the rain strainer can be automatically opened quickly under the action of a counterweight difference (the counterweight of the rain collecting structure is greater than or equal to that of the counterweight structure, also called a positive counterweight difference), and when the rainfall is small or the rain stops, the rain strainer can be automatically closed quickly under the action of a counterweight difference (the counterweight of the rain collecting structure is smaller than that of the counterweight structure, also called a negative counterweight difference).

In an application scene, calculating a force-arm ratio according to precipitation intensity grade division standards, the drainage area of a single rainwater grate and the number of louver blades, wherein in a specific scene, for example, the force-arm ratio is 3: 10, thereby ensuring that the rainwater grate can be automatically opened or closed quickly.

Further, in the above embodiment, the first and second engaging lugs have a preset orientation angle, so that the louver blades rotate in a counterclockwise direction or a clockwise direction. For example, the contained angle of second engaging lug and tripe blade is the acute angle to make the orientation angle of second engaging lug is the acute angle, thereby is convenient for have great rotation range when tripe blade is rotatory, and can not take place the dead condition of mechanical card, and is convenient for form the clearance of being convenient for cross water between the tripe blade.

Alternatively, in other embodiments, the included angle between the second engaging lug and the louver blade may also be a right angle, as long as it is ensured that the louver blade can rotate when rotating, and a mechanical locking condition does not occur.

Further, in one embodiment, in order to facilitate rainwater to flow into the rainwater collection container quickly, a plurality of rainwater passing through holes are formed in at least part of the louver blades, so that the opening speed of the rainwater grate is increased. For example, a plurality of shutter blades above the rain collecting container are provided with rain passing through holes, and a plurality of shutter blades at the left side and the right side above the rain collecting container are provided with no rain passing through holes. Of course, it should be noted here that, according to a specific application scenario, a rain through hole may be formed in each louver blade.

In addition, the size and the density of the through holes for passing rain are flexibly set according to application scenes, for example, in order to meet the requirement of water passing speed, the diameter of the through holes can be larger, and the density can be higher.

Further, in one embodiment, in order to increase the closing speed of the rainwater grate, the rainwater collecting container is provided with a water leakage through hole, so that the rainwater in the rainwater grate can be effectively leaked away when the rainfall is small or the rain stops, and the rainwater grate can be closed quickly.

Further, in an embodiment, the rainwater grate further comprises a floating water level sensor and a warning lamp, the floating water level sensor is arranged in the rainwater collection structure, the warning lamp is arranged on the supporting frame, and when the water level in the rainwater collection structure reaches a value that the floating water level sensor generates an effective electric signal to be output, the warning lamp is triggered to be turned on.

Specifically, the sensor mainly comprises a magnetic reed switch and a floating ball, wherein a magnetic material is arranged in the ball, the magnetic reed switch is arranged in a closed non-conductive metal pipe or a closed non-conductive plastic pipe, then a guide pipe penetrates through the floating ball with the magnetic material, the floating ball and the magnetic reed switch are controlled to be in corresponding positions by a fixed double ring, and when the floating ball rises or falls along with liquid, a contact close to the magnetic reed switch in the ball is utilized to generate switching action so as to control or indicate the liquid level. That is, the floating ball is switched on when approaching the magnetic reed switch and switched off when leaving.

After the floating water level sensor is connected in series to the warning light circuit, the warning light circuit can be automatically closed and the warning light can be turned on when the water level in the rainwater collecting device reaches a certain degree.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, "several" in the above embodiments may be specifically 2 or more.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rain water grate is characterized by comprising,

a plurality of shutter blades, wherein:

each louver blade is provided with two rotating shafts, the two rotating shafts are arranged close to the front side of the corresponding louver blade, one rotating shaft is positioned on the left side of the louver blade and is rotationally connected with the left side fixing plate, and the other rotating shaft is positioned on the right side of the louver blade and is rotationally connected with the right side fixing plate;

for any second suspension connecting rod positioned on the left side, the second suspension connecting rod is connected with a second connecting lug close to the left side fixing plate; and any second suspension connecting rod positioned on the right side is connected with a second connecting lug close to the right side fixing plate.

2. The rainwater grate as claimed in claim 1, wherein at least one of the left and right fixing plates is a fixing plate of a composite structure, and the fixing plate of the composite structure comprises: the first curb plate of apron, two or more than two second curb plates, wherein:

the cover plate is provided with a through hole;

the upper end surface and the lower end surface of each first side plate are provided with a plurality of convex tooth structures;

the upper end surface and the lower end surface of each second side plate are of a plane structure;

a second side plate is arranged on the inner side and the outer side of the fixing plate of the composite structure;

and between the inner side and the outer side of the fixing plate of the composite structure, the first side plate and the second side plate are arranged at intervals, so that the through hole in the cover plate is clamped with the tooth structure.

3. The rainwater grate as claimed in claim 1, wherein more than 2 rainwater passing through holes are further formed on part of the louver blades, and/or the rainwater collecting container is provided with water leakage through holes.

4. The rainwater grate as claimed in claim 1, wherein said first hanging bottom plate is a frame structure, said frame structure comprises a plurality of first hanging cross bars and first hanging support bars respectively located at left and right sides of said frame structure, said plurality of first hanging cross bars are transversely connected between said left and right first hanging support bars.

5. The rainwater grate as claimed in claim 1, wherein said second suspension bottom plate is a frame structure, said frame structure comprises a plurality of second suspension cross bars and second suspension support bars respectively located at left and right sides of said frame structure, said plurality of second suspension cross bars are transversely connected between said left and right second suspension support bars.

6. The rainwater grate as claimed in claim 4 or 5, wherein any one of the first hanging support bar and the second hanging support bar is a composite hanging support bar, and the composite hanging support bar comprises two hanging support pieces with a plurality of first hanging through holes; for any type of the first suspension cross bars and the second suspension cross bars, the first suspension through holes are connected between the first suspension support bars on the left side and the right side, or the second suspension cross bars are transversely connected between the second suspension support bars on the left side and the right side.

7. The rainwater grate as recited in claim 6, wherein each of the hanging support rods of the composite structure further comprises a plurality of second hanging through holes; and for any one of the first suspension connecting rod and the second suspension connecting rod, a third suspension through hole is formed in the lower end of the first suspension connecting rod and the lower end of the second suspension connecting rod, and when the first suspension connecting rod is connected to the first suspension bottom plate and the second suspension connecting rod is connected to the second suspension bottom plate, the third suspension through hole is positioned between the two second suspension through holes and forms a through hole structure.

8. The rainwater grate as claimed in any one of claims 1 to 7, wherein said two rotation shafts are arranged close to the front side of the corresponding louver blade and far from the rear side of the corresponding louver blade to form a lever structure for setting the force-to-arm ratio.

9. The rainwater grate as claimed in claim 8, wherein the first and second coupling lugs have a preset orientation angle so that the louver blades rotate in a counterclockwise or clockwise direction.

10. The rainwater grate according to claim 8, further comprising a floating water level sensor and a warning lamp, wherein the floating water level sensor is arranged in the rainwater collection structure, the warning lamp is arranged on the support frame, and when the water level in the rainwater collection structure reaches a value that the floating water level sensor generates an effective electric signal to be output, the warning lamp is triggered to be turned on.

11. A louver blade is characterized in that two rotating shafts are arranged on the louver blade, the two rotating shafts are arranged close to the front side of the corresponding louver blade and far away from the rear side of the corresponding louver blade, one rotating shaft is arranged on the left side of the louver blade and is rotatably connected with a left side fixing plate, and the other rotating shaft is arranged on the right side of the louver blade and is rotatably connected with a right side fixing plate;