Rainwater grate for outfall

Abstract

The utility model relates to the technical field of roof waterproof transformation, and provides a drain gully rainwater grate, which comprises a grate hopper, a water inlet, a water outlet and a water outlet, the grate hopper is conical, the conical narrow end is used for being inserted into a drain gully, and the two ends of the grate hopper are open and used for guiding rainwater; the grate plate is movably arranged at the narrow end of the grate hopper, a plurality of through grooves are formed in the grate plate, and the sizes of the through grooves are increased from bottom to top; the movable plate is movably arranged on the grate plate and connected with the grate hopper and the grate plate through a reset assembly, a plurality of blocking grooves corresponding to the through grooves are formed in the movable plate, the blocking grooves are used for blocking openings of the through grooves, and movement of the movable plate relative to the grate plate is used for changing the sizes of the openings of the through grooves. The device can be suitable for various water falling openings with different opening sizes, the water falling amount can be automatically adjusted, and the efficiency and the quality of roof waterproof transformation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roof waterproof renovation, and particularly relates to a rainwater grate for a water inlet. Background Art

[0002] The waterproof renovation of the roofs of old communities is an important project to improve the living quality of residents in old communities, including roof waterproof laying, replacement of exterior windows, renovation of upper and lower water pipes, decoration of stairwells, and line regularization. Among them, waterproof rolls are mostly used for roof waterproof laying, which are laid in two layers and turned up along the inner wall of the roof to the outer edge of the roof to form a waterproof and moisture-proof layer.

[0003] After the roof waterproof renovation, the original water inlet will be covered with rolls, the opening will become smaller or deformed, and the original rainwater grate is no longer suitable for the renovated water inlet. There is no suitable rainwater grate for the renovated roof water inlet, and the exposed and open water inlet is prone to being blocked by various sundries in the later stage, resulting in poor drainage of the downspout, and the roof rainwater cannot be discharged in time, which will cause certain damage to the roof waterproof and heat insulation.

[0004] Therefore, in view of the above problems, a rainwater grate for a water inlet is proposed to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model develops a rainwater grate for a water inlet, which can be applicable to water inlets with various different opening sizes, and can automatically adjust the water discharge volume, improving the efficiency and quality of roof waterproof renovation.

[0006] To achieve the above object, the utility model is realized through the following technical solutions:

[0007] A rainwater grate for a water inlet includes: a grate hopper, which is set to be conical, and the narrow end of the cone is used to be inserted into the water inlet. Both ends of the grate hopper are open for guiding rainwater; a grate plate, which is movably arranged at the narrow end of the grate hopper, and a plurality of through slots are arranged on the grate plate, and the sizes of the through slots become larger from bottom to top; a moving plate, which is movably arranged on the grate plate and is connected to the grate hopper and the grate plate through a reset assembly. A plurality of blocking slots are opened on the moving plate corresponding to the through slots, and the blocking slots are used to block the openings of the through slots. The movement of the moving plate relative to the grate plate is used to change the opening sizes of the through slots.

[0008] Preferably, the lower side plate of the grate hopper is arranged parallel to the ground for contacting the ground, and a bevel is arranged on the side of the lower side plate away from the grate plate for facilitating the rainwater to flow into the inner side of the grate hopper.

[0009] Preferably, the left side plate, the right side plate and the upper side plate of the grate hopper are all inclined, and are enclosed with the lower side plate into a cone shape, and a plurality of through holes are opened on both the left side plate and the right side plate for facilitating the rainwater to enter the inner side of the grate hopper from the side, and at the same time for blocking sundries on the side from entering the inner side of the grate hopper.

[0010] Preferably, a flat section extends outward from the narrow end of the grating hopper. A guide plate is arranged along the length direction on the inner side of the flat section. The grating plate is slidably arranged in the flat section. A chute is opened at the position of the side of the grating plate corresponding to the guide plate. The chute is slidably connected with the guide plate. The grating plate includes a front plate and a rear plate. The front plate and the rear plate are connected and a gap is reserved therebetween. The moving plate is slidably arranged in the gap.

[0011] Preferably, the reset assembly includes a first spring and a pulling rope. The first spring is arranged between the moving plate and the grating plate, and the length direction of the first spring is perpendicular to the lower side plate. The movement of the moving plate relative to the grating plate is used to drive the deformation of the first spring. One end of the pulling rope is arranged on the grating hopper, and the other end of the pulling rope is arranged on the moving plate, which is used to pull the moving plate to slide relative to the grating plate.

[0012] Preferably, a second spring is further included, which is arranged between the grating plate and the grating hopper, and the length direction of the second spring is perpendicular to the length direction of the first spring. The movement of the grating plate is used to deform the second spring.

[0013] The effects provided in the utility model content are only the effects of the embodiments, rather than all the effects of the utility model. The above technical solutions have the following advantages:

[0014] By providing a conical grating hopper in the present utility model, it can meet the needs of blocking sundries and draining water for various water outlets with different opening sizes after the waterproof transformation, improving the application range of the device and the efficiency of the roof waterproof transformation; by providing a grating plate, and the size of the through slots on the grating plate gradually increases from bottom to top to cope with the diversion of rainwater with different flow rates; by providing a moving plate, it can prevent sundries from passing through the too large through slot openings, and at the same time, when there are too many sundries, the moving plate can move to change the area of the blocked through slots, improving the rainwater outflow rate, avoiding blocking the through slots, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the grating hopper of the embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the grating plate and the moving plate of the embodiment of the present utility model;

[0019] Figure 4 It is a schematic side sectional view of the installation of the device of the embodiment of the present utility model at the water outlet;

[0020] Figure 5 Schematic diagram of the moving plate and the reset assembly according to an embodiment of the present utility model;

[0021] Figure 6 Schematic diagram of the positions of the grating plate and the moving plate according to an embodiment of the present utility model Figure 1 ;

[0022] Figure 7 Schematic diagram of the positions of the grating plate and the moving plate according to an embodiment of the present utility model Figure 2 .

[0023] In the figure, 1, grating hopper; 2, grating plate; 3, through slot; 4, moving plate; 5, reset assembly; 6, retaining slot; 7, lower side plate; 8, inclined platform; 9, left side plate; 10, right side plate; 11, upper side plate; 12, through hole; 13, guide plate; 14, sliding slot; 15, front plate; 16, rear plate; 17, first spring; 18, pull rope; 19, second spring. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-7 shown, the present utility model provides a technical solution:

[0026] A rainwater grate for a water inlet, comprising: a grating hopper 1, which is arranged in a conical shape, and the narrow end of the cone is used to be inserted into the water inlet. Both ends of the grating hopper 1 are open for guiding rainwater; a grating plate 2, which is movably arranged at the narrow end of the grating hopper 1 and covers the opening at the narrow end. A plurality of through slots 3 are penetrated through the grating plate 2, and the size of the through slots 3 gradually increases from bottom to top, so that the through slots 3 with a small area first contact the rainwater; a moving plate 4, which is movably arranged on the grating plate 2 and is connected to the grating hopper 1 and the grating plate 2 through a reset assembly 5. A plurality of retaining slots 6 are formed on the moving plate 4 corresponding to the through slots 3. The retaining slots 6 are used to block part of the openings of the through slots 3, so that the initial size of the openings of the blocked through slots 3 is the same as the size of the openings of the lowermost through slots 3. The movement of the moving plate 4 relative to the grating plate 2 can change the size of the openings of the through slots 3 blocked by the retaining slots 6.

[0027] In this embodiment, the grating hopper 1 is set as a square cone shape, and the lower side plate 7 of the grating hopper 1 is arranged parallel to the ground for full contact with the ground, so that rainwater can flow into the grating hopper 1. An inclined platform 8 is arranged on one side edge of the lower side plate 7 away from the grating plate 2 for facilitating the rainwater to flow into the inner side of the grating hopper 1, avoiding water accumulation at the opening of the grating hopper 1, and improving the practicability of the device.

[0028] In this embodiment, the left side plate 9, the right side plate 10 and the upper side plate 11 of the grating hopper 1 are all inclined and enclosed with the lower side plate 7 into a cone shape to adapt to the water outlets with different opening sizes. A plurality of through holes 12 are opened on both the left side plate 9 and the right side plate 10 for facilitating the rainwater to enter the inner side of the grating hopper 1 from the side. At the same time, the inclined left side plate 9 and right side plate 10 can also block the sundries on the side to a certain extent from entering the inner side of the grating hopper 1, avoiding more sundries from accumulating in the grating hopper 1 and improving the water guiding efficiency of the device.

[0029] In this embodiment, a flat section extends outward from the narrow end of the grating hopper 1. Through holes 12 are opened on both the side plate and the floor of the flat section for facilitating the outflow of rainwater. A guiding plate 13 is arranged along the length direction on the inner side of the flat section. The grating plate 2 is slidably arranged in the flat section. A sliding groove 14 is opened at the position of the side of the grating plate 2 corresponding to the guiding plate 13, and the sliding groove 14 is slidably connected with the guiding plate 13; the grating plate 2 includes a front plate 15 and a rear plate 16. Through grooves 3 are correspondingly opened on both the front plate 15 and the rear plate 16. The front plate 15 and the rear plate 16 are connected as a whole and can move simultaneously, and a gap is reserved between the front plate 15 and the rear plate 16. The moving plate 4 is slidably arranged in the gap to realize the guiding effect of the movement of the moving plate 4.

[0030] In this embodiment, the blocking groove 6 on the moving plate 4 is used to block the through groove 3 in the middle of the grating plate 2. The through groove 3 with the smallest bottom opening and the through groove 3 with the largest top opening do not need to be blocked. When the rainwater flow is small, the rainwater only needs to flow through the through groove 3 with the smallest bottom opening and does not need to use the through grooves 3 in the middle and at the top. When the rainwater flow is relatively large, the rainwater flows through the through grooves 3 at the bottom and in the middle. When the rainwater flow is the largest, the rainwater flows through all the through grooves 3. Since the top through groove 3 has the largest opening and is not blocked by the moving plate 4, it can accelerate the flow of rainwater, avoid water accumulation from damaging the waterproof structure, and improve the practicability of the device.

[0031] In this embodiment, the reset assembly 5 is used to make the moving plate 4 return to the initial position after moving. The reset assembly 5 includes a first spring 17 and a pull rope 18. The first spring 17 is arranged between the moving plate 4 and the grating plate 2, and the length direction of the first spring 17 is perpendicular to the lower side plate 7. The movement of the moving plate 4 relative to the grating plate 2 can cause the first spring 17 to deform. One end of the pull rope 18 is arranged on the grating hopper 1, and the other end of the pull rope 18 is arranged on the moving plate 4 for pulling the moving plate 4 to slide relative to the grating plate 2 to change the opening size of the through groove 3 blocked by the blocking groove 6, accelerate the passing of rainwater, and improve the practicability of the device.

[0032] In another embodiment, a first spring 17 is provided on the lower side of the moving plate 4. The first spring 17 is used to be stretched. One end of a pull rope 18 is connected to the upper side of the moving plate 4, and the other end of the pull rope 18 is provided on the upper side plate 11 of the sieve hopper 1. Moreover, a pulley is provided on the upper side of the front plate 15 of the sieve plate 2, and the pull rope 18 is arranged on the pulley to reduce friction. In another embodiment, the first spring 17 can also be provided on the upper side of the moving plate 4. When the moving plate 4 moves, the first spring 17 is used to be compressed, which can also avoid the possible reduction of elasticity caused by the first spring 17 being repeatedly eroded by rainwater, thus improving the service life of the device.

[0033] In this embodiment, a second spring 19 is further included, which is arranged between the sieve plate 2 and the sieve hopper 1, and the length direction of the second spring 19 is perpendicular to the length direction of the first spring 17. When the sieve plate 2 moves, it causes the second spring 19 to deform. Preferably, the second spring 19 is arranged behind the rear plate 16 and is compressed when the sieve plate 2 moves. Moreover, the elastic coefficient of the second spring 19 can be selected according to the area of the sieve plate 2 to meet the needs of different water pressures. After the second spring 19 restores the sieve plate 2 to its initial position, it can also push the sundries in front of the sieve plate 2 out of the flat section, facilitating the cleaning of sundries and improving the practicability of the device.

[0034] Working principle: First, after the device is assembled, it is inserted into the required water inlet. When there is no debris accumulation on the front side of the sieve plate 2, the sieve plate 2 does not need to move. When rainwater flows through the sieve plate 2, it flows through the through groove 3 with the smallest opening at the bottom of the sieve plate 2. Even when the water flow gradually becomes larger, there is no need to change the opening size of the through groove 3. The through groove 3 with the largest opening at the top of the sieve plate 2 can accelerate the passing rate of the water flow. When there is debris accumulation on the front side of the sieve plate 2, the water flow is partially blocked and the passing rate becomes slower. At this time, the water pressure is too high, which can push the sieve plate 2. The sieve plate 2 moves backward, and the second spring 19 is compressed. Since the length of the pull rope 18 is fixed, at this time, the moving plate 4 moves upward under the pulling of the pull rope 18, and the first spring 17 is stretched. The opening of the through groove 3 blocked by the blocking groove 6 gradually becomes larger, and the passing rate of the water flow is accelerated. After the water flow passes, the water pressure decreases. Under the elastic action of the second spring 19, the sieve plate 2 returns to its initial position. At the same time, under the action of the first spring 17, the moving plate 4 returns to its initial position, and the sundries in front of the sieve plate 2 can be pushed out, facilitating subsequent cleaning by personnel.

[0035] The details not elaborated in the present utility model are all conventional technical means well known to those skilled in the art.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent substitutions on some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rain grate for a drain opening, characterized in that, Comprising: A grating hopper (1), which is set to be conical, and the narrow end of the cone is used to be inserted into the water inlet, and both ends of the grating hopper (1) are open for guiding rainwater; A grating plate (2), which is movably arranged at the narrow end of the grating hopper (1), and a plurality of through grooves (3) are arranged on the grating plate (2), and the size of the through grooves (3) becomes larger from bottom to top; A moving plate (4), which is movably arranged on the grating plate (2), and is connected to the grating hopper (1) and the grating plate (2) through a reset assembly (5). A plurality of blocking grooves (6) are arranged on the moving plate (4) corresponding to the through grooves (3), and the blocking grooves (6) are used to block the openings of the through grooves (3). The movement of the moving plate (4) relative to the grating plate (2) is used to change the opening size of the through grooves (3).

2. The rainwater grate for a drain inlet according to claim 1, wherein: The lower side plate (7) of the grating hopper (1) is arranged parallel to the ground for contacting the ground, and a bevel (8) is arranged on one side of the lower side plate (7) away from the grating plate (2) for facilitating the rainwater to flow into the inner side of the grating hopper (1).

3. The rainwater grate for a water inlet according to claim 2, wherein: The left side plate (9), the right side plate (10) and the upper side plate (11) of the grating hopper (1) are all inclined, and are enclosed with the lower side plate (7) to form a cone, and a plurality of through holes (12) are arranged on both the left side plate (9) and the right side plate (10) for facilitating the rainwater to enter the inner side of the grating hopper (1) from the side, and at the same time for blocking the sundries on the side from entering the inner side of the grating hopper (1).

4. The rainwater grate for a drain outlet according to claim 3, characterized in that: The narrow end of the grating hopper (1) extends outwards to form a flat section, and a guide plate (13) is arranged along the length direction on the inner side of the flat section. The grating plate (2) is slidably arranged in the flat section. A chute (14) is arranged at the position of the side of the grating plate (2) corresponding to the guide plate (13), and the chute (14) is slidably connected to the guide plate (13). The grating plate (2) includes a front plate (15) and a rear plate (16), the front plate (15) and the rear plate (16) are connected and a gap is reserved therebetween, and the moving plate (4) is slidably arranged in the gap.

5. The rainwater grate for a drain inlet according to claim 4, characterized in that: The reset assembly (5) includes a first spring (17) and a pull rope (18). The first spring (17) is arranged between the moving plate (4) and the grating plate (2), and the length direction of the first spring (17) is perpendicular to the lower side plate (7). The movement of the moving plate (4) relative to the grating plate (2) is used to drive the first spring (17) to deform. One end of the pull rope (18) is arranged on the grating hopper (1), and the other end of the pull rope (18) is arranged on the moving plate (4) for pulling the moving plate (4) to slide relative to the grating plate (2).

6. The rainwater grate for a water inlet according to claim 5, wherein: It also includes a second spring (19), which is arranged between the grating plate (2) and the grating hopper (1), and the length direction of the second spring (19) is perpendicular to the length direction of the first spring (17). The movement of the grating plate (2) is used to make the second spring (19) deform.

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