Composite drainage well lid

Abstract

The utility model discloses a combined type drainage well lid which comprises an outer-layer grating plate, an inner-layer grating plate is arranged at the bottom of the outer-layer grating plate, a fixing frame plate is arranged at the bottom of the inner-layer grating plate, a limiting supporting plate is fixedly connected to the fixing frame plate, a sliding hole is formed in the limiting supporting plate, and the limiting supporting plate is fixedly connected with the inner-layer grating plate. And guide columns are arranged in the sliding holes in a penetrating mode, the outer portions of the guide columns are sleeved with pressure springs, one ends of the pressure springs abut against limiting discs, and the limiting discs are fixed to the inner-layer grating plate. According to the composite drainage well lid, branches, dead leaves, garbage and the like in rainwater are filtered on the outer-layer grating plate, guide columns and pressure springs arranged on the inner-layer grating plate can be pressed down by the weight above, so that the inner-layer grating plate is inclined, the drainage speed is increased, and the inner-layer grating plate can automatically recover when the rainfall is reduced and the rainwater accumulation becomes smaller; the effect of self-adaptively adjusting the water outlet flow of the well lid is achieved while branches, leaves and garbage on the earth surface are intercepted.

Description

Technical Field

[0001] The utility model belongs to the technical field of drainage manhole covers, and in particular relates to a composite drainage manhole cover. Background Art

[0002] Manhole covers are commonly used in urban drainage systems. They can quickly drain rainwater from the ground to ensure the normal operation of urban streets. They are an important part of the urban drainage system. If the manhole covers cannot drain rainwater into the municipal pipeline network in time, the surrounding blocks may be soaked, causing significant losses.

[0003] Traditional drainage manhole covers have the following problems when in use:

[0004] 1. Traditional drainage manhole covers are generally hollow grille plates made of cement and steel bars or welded steel plates. This drainage structure can quickly drain rainwater from the ground, but it will also drain branches, leaves, garbage, etc. on the surface, which can seriously cause blockage of the drainage pipes;

[0005] 2. Common drainage manhole covers are mostly integrated structures, and are heavy and bulky, making them inconvenient to move and transport. They require multiple people to assist in installation, and cannot be installed quickly. Utility Model Content

[0006] The utility model aims to provide a composite drainage manhole cover to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a composite drainage manhole cover, comprising an outer grille plate, an inner grille plate is arranged at the bottom of the outer grille plate, a fixed frame plate is arranged at the bottom of the inner grille plate, a limiting support plate is fixedly connected to the fixed frame plate, a sliding hole is opened on the limiting support plate, a guide column is passed through the sliding hole, a pressure spring is sleeved on the outside of the guide column, one end of the pressure spring is against the limiting plate, and the limiting plate is fixed to the inner grille plate.

[0008] Preferably, the outer grid plate is provided with an outer screw hole, a fixing bolt is passed through the outer screw hole, the fixing bolt is threadedly fixed on the fixing screw hole, and the fixing screw hole is provided on the fixing frame plate.

[0009] Preferably, a first limiting groove is formed on the frame of the fixed frame plate, and a limiting block is inserted into the first limiting groove.

[0010] Preferably, a shaft limiting groove is provided on the middle end of the fixed frame plate, and a shaft column is passed through the shaft limiting groove.

[0011] Preferably, fixed sleeves are fixed at both ends of the shaft column, the fixed sleeves are fixed in shaft limiting grooves, a first rotating sleeve and a second rotating sleeve are passed through the shaft column, and the first rotating sleeve and the second rotating sleeve are respectively fixedly connected to the inner grid plate.

[0012] Preferably, a fixing frame is sleeved on the exterior of the fixing frame plate, a second limiting groove is opened on the frame of the fixing frame, and a limiting block is inserted into the second limiting groove.

[0013] The composite drainage manhole cover of the utility model has the following advantages:

[0014] 1. This composite drainage manhole cover, through the cooperation of structures such as an inner grille plate, a pressure spring and a limit support plate, an inner grille plate is arranged at the bottom of the outer grille plate, a fixed frame plate is arranged at the bottom of the inner grille plate, the fixed frame plate is fixedly connected to the limit support plate, a sliding hole is opened on the limit support plate, a guide column is inserted in the sliding hole, a pressure spring is sleeved on the outside of the guide column, one end of the pressure spring is against the limit plate, the limit plate is fixed on the inner grille plate, a first limit groove is opened on the frame of the fixed frame plate, a limit block is inserted in the first limit groove, the cooperation of the above structures, When the rainwater is discharged, it first passes through the outer grille plate, and branches, dead leaves, garbage, etc. in the rainwater are filtered on the outer grille plate, and then the rainwater falls into the inner grille plate below for discharge. The inner grille plate can also play a certain filtering effect. When the rainwater accumulates to a certain height at the drain outlet, the guide column and pressure spring set on the inner grille plate will be pressed down by the weight above, so that the inner grille plate is tilted, and the drainage speed is accelerated. When the rainfall decreases and the rainwater accumulation becomes smaller, it will automatically recover, so as to intercept branches and garbage on the surface, and adaptively adjust the flow rate of the water outflow from the manhole cover;

[0015] 2. This composite drainage manhole cover, through the cooperation of the outer grille plate, the inner grille plate, the fixed frame plate and the fixed frame, an outer screw hole is opened on the outer grille plate, a fixing bolt is passed through the outer screw hole, the fixing bolt is threadedly fixed on the fixing screw hole, the fixing screw hole is opened on the fixing frame plate, the outer sleeve of the fixing frame plate is provided with a fixing frame, the frame of the fixing frame is provided with a second limiting groove, and the second limiting groove is passed through a limiting block. The cooperation of the above structures can form a composite installation structure of the drainage manhole cover. The fixing frame is first installed on the drain outlet, and then the fixing frame plates are connected through the limiting blocks. Finally, concrete is poured on the fixing frame plates to complete the fixing of the frame. Then, the shaft column and the inner grille plate are fixed and passed in sequence, and finally the outer grille plate is fixed to the fixing frame. Through the above layer-by-layer installation and splicing, the manhole cover can be quickly and conveniently installed, making it more convenient to carry and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the drainage pressure adaptation structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the outer grid plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the inner grid plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the fixed frame structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the fixed frame structure of the utility model.

[0023] Explanation of markings in the figure: 1. Outer grid plate; 2. Inner grid plate; 3. Fixed frame; 4. Fixed shaft sleeve; 5. Shaft column; 6. First rotating sleeve; 7. Fixed frame plate; 8. Limit support plate; 9. Guide column; 10. Pressure spring; 11. Sliding hole; 12. Limit plate; 13. Fixed screw hole; 14. First limit slot; 15. Shaft limit slot; 16. Second rotating sleeve; 17. Outer screw hole; 18. Fixed bolt; 19. Limit block; 20. Second limit slot. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0029] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a composite drainage manhole cover of the utility model in conjunction with the accompanying drawings.

[0030] like Figure 1-6 As shown, a composite drainage manhole cover of the utility model comprises an outer grille plate 1, an inner grille plate 2 is arranged at the bottom of the outer grille plate 1, a fixed frame plate 7 is arranged at the bottom of the inner grille plate 2, a limited support plate 8 is fixedly connected to the fixed frame plate 7, a sliding hole 11 is opened on the limited support plate 8, a guide column 9 is passed through the sliding hole 11, a pressure spring 10 is sleeved on the outside of the guide column 9, one end of the pressure spring 10 is against the limit plate 12, and the limit plate 12 is fixed on the inner grille plate 2. The guide column 9 and the pressure spring 10 arranged on the inner grille plate 2 will be pressed down by the weight above, so that the inner grille plate 2 is tilted, the drainage speed is accelerated, and it will automatically recover when the rainfall decreases and the rainwater accumulation becomes smaller.

[0031] An outer screw hole 17 is provided on the outer grille plate 1, and a fixing bolt 18 is passed through the outer screw hole 17. The fixing bolt 18 is threadedly fixed on the fixing screw hole 13. The fixing screw hole 13 is provided on the fixing frame plate 7. The fixing frame plate 7 is connected to the fixing frame 3 through a limit block 19. Finally, cement is poured on the fixing frame plate 7 to complete the fixed frame structure of the manhole cover.

[0032] A first limiting groove 14 is opened on the frame of the fixed frame plate 7, and a limiting block 19 is passed through the first limiting groove 14. By corresponding the first limiting groove 14 and the second limiting groove 20, and then passing the limiting block 19 therethrough, the two sides can be connected, which is convenient for fixing after pouring cement.

[0033] An axle limiting groove 15 is provided on the middle end of the fixed frame plate 7, and an axle column 5 is inserted into the axle limiting groove 15. The axle column 5 can provide steering support for the inner grid plates 2 on both sides, so as to facilitate inclined drainage in coordination with the structure below.

[0034] Fixed shaft sleeves 4 are fixed at both ends of the shaft column 5, and the fixed shaft sleeves 4 are fixed in the shaft limiting groove 15. A first rotating sleeve 6 and a second rotating sleeve 16 are passed through the shaft column 5, and the first rotating sleeve 6 and the second rotating sleeve 16 are respectively fixedly connected to the inner grid plate 2. By passing the first rotating sleeve 6 and the second rotating sleeve 16 through the shaft column 5, the inner grid plates 2 on both sides can be rotated.

[0035] The fixed frame plate 7 is externally sleeved with a fixed frame 3, a second limiting groove 20 is opened on the frame of the fixed frame 3, a limiting block 19 is passed through the second limiting groove 20, and a limiting support plate 8 is fixed to the bottom of the fixed frame plate 7, which can provide a limiting and blocking effect when the inner grid plate 2 is tilted.

[0036] The working principle of the composite drainage manhole cover: when in use, it is only necessary to first install the fixing frame 3 on the drain outlet, connect the fixing frame plate 7 through the limit block 19, and finally pour concrete on the fixing frame 3 to complete the fixing of the frame, and then fix the shaft column 5 and the inner grille plate 2 in sequence, and finally fix the outer grille plate 1 on the fixing frame 3. The manhole cover can be quickly and conveniently installed by installing and splicing the above layers layer by layer. The specific connection structure is that an outer screw hole 17 is opened on the outer grille plate 1, and a fixing bolt 18 is inserted in the outer screw hole 17. The fixing bolt 18 is threadedly fixed on the fixing screw hole 13. The fixing screw hole 13 is opened on the fixing frame plate 7, and the fixing frame 3 is sleeved on the outside of the fixing frame plate 7. A second limit groove 20 is opened on the frame of the fixing frame 3, and a limit block 19 is inserted in the second limit groove 20. The cooperation of the above structures can form a composite installation structure of this drainage manhole cover; this drainage manhole cover also has the function of rapid drainage, and by arranging an inner layer at the bottom of the outer grille plate 1 The grille plate 2, the bottom of the inner grille plate 2 is provided with a fixed frame plate 7, the fixed frame plate 7 is fixedly connected to the limited support plate 8, the limited support plate 8 is provided with a sliding hole 11, the sliding hole 11 is penetrated with a guide column 9, the outer sleeve of the guide column 9 is provided with a pressure spring 10, one end of the pressure spring 10 is against the limit plate 12, the limit plate 12 is fixed to the inner grille plate 2, the frame of the fixed frame plate 7 is provided with a first limit groove 14, the first limit groove 14 is penetrated with a limit block 19, the above structure cooperates When discharging rainwater, the rainwater first passes through the outer grille plate 1, and branches, dead leaves, garbage, etc. in the rainwater are filtered on the outer grille plate, and then the rainwater falls into the inner grille plate 2 below for discharge. The inner grille plate 2 can also play a certain filtering effect. When the rainwater accumulates to a certain height at the drain outlet, the guide column 9 and the pressure spring 10 arranged on the inner grille plate 2 will be pressed down by the weight above, so that the inner grille plate 2 is tilted, which speeds up the drainage speed. When the rainfall decreases and the rainwater accumulation becomes smaller, it will automatically recover.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A composite drainage manhole cover, comprising an outer grid plate (1), Features: An inner grid plate (2) is arranged at the bottom of the outer grid plate (1), and a fixed frame plate (7) is arranged at the bottom of the inner grid plate (2). A limit support plate (8) is fixedly connected to the fixed frame plate (7), and a sliding hole (11) is opened on the limit support plate (8). A guide column (9) is inserted into the sliding hole (11), and a pressure spring (10) is sleeved on the outside of the guide column (9). One end of the pressure spring (10) abuts against a limit plate (12), and the limit plate (12) is fixed on the inner grid plate (2).

2. The composite drainage manhole cover according to claim 1, Features: The outer grid plate (1) is provided with an external screw hole (17), a fixing bolt (18) is inserted into the external screw hole (17), and the fixing bolt (18) is threadedly fixed on the fixing screw hole (13), and the fixing screw hole (13) is provided on the fixing frame plate (7).

3. The composite drainage manhole cover according to claim 1, Features: A first limiting groove (14) is provided on the frame of the fixed frame plate (7), and a limiting block (19) is inserted into the first limiting groove (14).

4. The composite drainage manhole cover according to claim 1, Features: A shaft limiting groove (15) is provided on the middle end of the fixed frame plate (7), and a shaft column (5) is inserted into the shaft limiting groove (15).

5. The composite drainage manhole cover according to claim 4, Features: Fixed shaft sleeves (4) are fixed at both ends of the shaft column (5), and the fixed shaft sleeves (4) are fixed in shaft limiting grooves (15). A first rotating sleeve (6) and a second rotating sleeve (16) are passed through the shaft column (5), and the first rotating sleeve (6) and the second rotating sleeve (16) are respectively fixedly connected to the inner grid plate (2).

6. The composite drainage manhole cover according to claim 2, Features: The fixed frame plate (7) is sleeved with a fixed frame (3) on its exterior, the fixed frame (3) is provided with a second limiting groove (20) on its frame, and a limiting block (19) is inserted into the second limiting groove (20).

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