Anti-blocking drainage ditch cover plate
By designing an anti-blocking drainage ditch cover plate, the eccentric plate swing is used to drive the swing of the eccentric plate to drive the movement of the dial and slide blocks, automatic cleaning is achieved, and the problem of blockage of the drainage ditch cover plate is solved and automated cleaning is achieved.
Patent Information
- Application Number
- CN202421627107.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing drainage ditch covers are prone to blockage due to leaves and branches in spring and autumn, lack passive cleaning functions, and rely on manual cleaning.
An anti-blocking drainage ditch cover plate is designed, including a top cover plate, a bottom cover plate, an extension arm and an eccentric plate. The eccentric plate is swung by using the water flow to drive the lever and slider to reciprocate in the drainage groove to achieve automatic cleaning.
It effectively avoids clogging of drainage ditch covers, realizes automatic cleaning, and reduces the need for manual cleaning.
Smart Images

Figure CN223119208U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of municipal facilities and relates to a drainage ditch cover plate for preventing blockage. Background Art
[0002] The municipal drainage ditch cover plate is used for filtering and covering the ground drainage ditch. In spring and autumn, it is very easy to be blocked due to reasons such as fallen leaves, branches, and urban waterlogging. The existing drainage ditch cover plates do not have a passive cleaning function and rely on manual cleaning by municipal sanitation workers, etc. Content of the Utility Model
[0003] The purpose of the utility model is to provide a drainage ditch cover plate for preventing blockage in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is how to avoid the blockage of the drainage ditch cover plate.
[0004] The purpose of the utility model can be realized by the following technical solutions: A drainage ditch cover plate for preventing blockage, characterized in that it includes a top cover plate buckled on the drainage ditch, a bottom cover plate sliding under the top cover plate, two extension arms fixed under the bottom cover plate, and an eccentric plate hinged on the extension arms. A dial block located above the eccentric plate is fixedly arranged on the eccentric plate. A slot adapted to the dial block is provided on the lower surface of the bottom cover plate. Strip-shaped drainage grooves are provided on both the bottom cover plate and the top cover plate. A slider inserted into the drainage groove on the top cover plate is provided on the upper surface of the bottom cover plate. The drainage groove is perpendicular to the slot.
[0005] During normal drainage, the water flow will act on the surface of the eccentric plate, driving the eccentric plate to swing around its hinge point. Especially when the drainage volume is large, during the swinging process of the eccentric plate, the dial block drives the bottom cover plate to reciprocate horizontally under the top cover plate, and then the slider reciprocates along the length direction of the drainage groove in the drainage groove on the top cover plate, realizing the cleaning of the drainage groove on the top cover plate. In order to ensure that the bottom cover plate is not blocked, the size of the drainage groove on the bottom cover plate can be increased, or a protrusion capable of cleaning the drainage groove on the bottom cover plate can also be provided under the top cover plate. Description of the Drawings
[0006] Figure 1 It is a structural schematic diagram of this drainage ditch cover plate.
[0007] Figure 2 It is a structural schematic diagram of the top cover plate and the bottom cover plate.
[0008] In the figure, 1, top cover plate; 2, bottom cover plate; 3, extension arm; 4, eccentric plate; 5, dial block; 6, slot; 7, drainage groove; 8, slider. Detailed Embodiment
[0009] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further described. However, the present utility model is not limited to these embodiments.
[0010] As Figure 1 and Figure 2 shown in the anti-blocking drainage ditch cover plate, which includes a top cover plate 1 buckled on the drainage ditch, a bottom cover plate 2 slid under the top cover plate 1, two extension arms 3 fixed under the bottom cover plate 2, and an eccentric plate 4 hinged on the extension arm 3. A slider 5 located above the eccentric plate 4 is fixedly arranged on the eccentric plate 4, and a slot 6 adapted to the slider 5 is provided on the lower surface of the bottom cover plate 2; strip-shaped drainage grooves 7 are provided on both the bottom cover plate 2 and the top cover plate 1, and a slider 8 inserted into the drainage groove 7 on the top cover plate 1 is provided on the upper surface of the bottom cover plate 2, and the drainage groove 7 is perpendicular to the slot 6.
[0011] During normal drainage, the water flow will act on the surface of the eccentric plate 4, driving the eccentric plate 4 to swing around its hinge point. Especially when the drainage volume is large, during the swinging process of the eccentric plate 4, the slider 5 drives the bottom cover plate 2 to reciprocate horizontally under the top cover plate 1, and then the slider 8 reciprocates along the length direction of the drainage groove 7 in the drainage groove 7 of the top cover plate 1, realizing the cleaning of the drainage groove 7 on the top cover plate 1. In order to ensure that the bottom cover plate 2 is not blocked, the size of the drainage groove 7 on the bottom cover plate 2 can be increased, or a protrusion capable of cleaning the drainage groove 7 on the bottom cover plate 2 can also be provided under the top cover plate 1.
[0012] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.
Claims
1. A drainage ditch cover for preventing blockage, characterized in that, It includes a top cover plate (1) buckled on the drainage ditch, a bottom cover plate (2) sliding below the top cover plate (1), two extension arms (3) fixed below the bottom cover plate (2), and an eccentric plate (4) hinged on the extension arms (3). A dial block (5) located above the eccentric plate (4) is fixedly arranged on the eccentric plate (4). A slot (6) adapted to the dial block (5) is provided on the lower surface of the bottom cover plate (2); strip-shaped drainage grooves (7) are provided on both the bottom cover plate (2) and the top cover plate (1). A sliding block (8) inserted into the drainage groove (7) on the top cover plate (1) is provided on the upper surface of the bottom cover plate (2). The drainage groove (7) is perpendicular to the slot (6).