Trash rack with rotatable top
By dividing the dirty grill into the top and bottom and hingedly connecting it, and then turning it backwards with a push and pull device, the difficulty of cleaning caused by the close distance between the dirty grill and the upstream wall is solved, effectively removing dirt on the dirty grill and smoothly passing water flow, and improving the power generation efficiency of the hydropower station.
Patent Information
- Application Number
- CN202421659099.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Because the distance between the dirty grille and the upstream wall is close, the space is small, and the cleaning grab can't pass, so the dirt on the dirty grille cannot be removed.
Divide the slug barrier into two parts: the top and the bottom, and connect it in the middle using an articulated manner. Under the action of the push and pull device, the top slug barrier is rotated backwards, thereby increasing the distance with the front chest wall beam body, so as to facilitate the passage of the cleaning and grabbing.
By increasing the working space of the dust blocking gate, the problem of the impaired cleaning grab is solved, the dirt that cannot be passed is removed, the dirt that cannot be cleaned is improved, the water flow is increased, and the power generation efficiency of the hydropower station is improved.
Smart Images
Figure CN222962019U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of trash rack cleaning, and specifically relates to a trash rack with a rotatable top. Background Art
[0002] In the installation positions of existing trash racks in hydropower stations, due to the design reasons of the dam, there are some hydropower stations where the space in front of the trash rack is narrow because the installation position of the trash rack is close to the upstream wall. When using a cleaning grab to remove the attached dirt on the trash rack, the cleaning grab cannot pass through due to the narrow space, resulting in the inability to clean the dirt on the trash rack. To solve the problem that the cleaning grab cannot be used for cleaning under this working condition, it is necessary to improve the existing trash rack so that it can meet the requirements of using the cleaning grab for cleaning. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a trash rack with a rotatable top for the above problems. The existing trash rack is modified so that the top trash rack can rotate around the bottom trash rack. When cleaning is required, the top trash rack is rotated backward to increase the working space in front of the trash rack, so that the cleaning grab can pass between the upstream wall and the trash rack, thereby removing the dirt that could not be cleaned originally.
[0004] The technical problems solved by the utility model can be realized by the following technical solutions:
[0005] A trash rack with a rotatable top specifically includes a cleaning grab, a top trash rack, a hinge device I, a hinge device II, a push-pull device, a hinge device III, and a bottom trash rack. Its feature is that the originally rigidly connected trash rack is divided into two parts, the top and the bottom, and they are connected in the middle by a hinge method. At the same time, under the action of the push-pull device, the top trash rack can be rotated backward, thereby increasing the distance between the top trash rack and the front chest wall beam, avoiding the narrow space that prevents the cleaning grab from passing through and being unable to remove the dirt attached to the bottom trash rack.
[0006] In a preferred embodiment of the utility model, the trash rack with a rotatable top includes a cleaning grab, a top trash rack, a hinge device I, a hinge device II, a push-pull device, a hinge device III, and a bottom trash rack.
[0007] Due to the adoption of the above technical solutions, the beneficial effects of the utility model are as follows: The utility model can solve the problem that due to the close distance between the trash rack and the upstream wall, the space is narrow and the cleaning grab cannot pass through, and the dirt attached to the bottom trash rack cannot be removed. By improving the cleaning method, the garbage that could not be removed originally can be cleaned, the cleaning work efficiency can be improved, the water flow through rate can be increased, and the power generation of the hydropower station can be enhanced.
[0008] Specification Description of the Drawings
[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0010] Figure 1 It is a top view of the position of the trash rack when the distance between the trash rack and the upstream wall is relatively close in the prior art.
[0011] Figure 2 It is a side view of the position of the trash rack when the distance between the trash rack and the upstream wall is relatively close in the prior art.
[0012] Figure 3 It is a schematic diagram of the unrotated trash rack after improvement of the top trash rack in the embodiment of the present invention.
[0013] Figure 4 It is a schematic diagram of the backward rotation of the trash rack after improvement of the top trash rack in the embodiment of the present invention. Detailed implementation manners
[0014] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further elaborated below.
[0015] Embodiment
[0016] Refer to Figure 3 As shown, a rotatable top trash rack includes a cleaning grab bucket 10, a top trash rack 20, a hinge device one 30, a hinge device two 40, a push-pull device 50, a hinge device three 60, and a bottom trash rack 70. The top trash rack 20 and the bottom trash rack 70 are hinged through the hinge device one 30. The two ends of the push-pull device 50 are respectively hinged to the hinge device two 40 and the hinge device three 60. The hinge device two 40 is fixed on the top trash rack 20, and the hinge device three 60 is fixedly connected to the downstream wall. The push-pull device 50 can be pushed out or retracted, and the rotation of the top trash rack 20 can be controlled through the action of the push-pull device 50.
[0017] The working principle of this embodiment is as follows
[0018] First, control the push-pull device 50 to retract, so that the top trash rack 20 rotates downward to the downstream side around the hinge device one 30, increasing the distance between the top trash rack 20 and the upstream wall. Then use a crane to lift the cleaning grab bucket, and then make the cleaning grab bucket 10 fall into the orifice where work is required, and gradually lower the cleaning grab bucket 10 to carry out cleaning operations, as Figure 4 shown.
[0019] After the cleaning grab 10 completes the cleaning operation, use a crane to lift the cleaning grab 10 away from the orifice. When the cleaning grab 10 completely leaves the orifice, then control the push-pull device 50 to push out, and rotate the top trash rack 20 to an upright state, which is convenient for subsequent normal trash rack cleaning and lifting operations. As Figure 3 shown.
[0020] Specification
[0021] The above shows and describes the basic principles, main features and advantages of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A trash rack with a rotatable top, comprising a trash cleaning grab, a top trash rack, a hinge device 1, a hinge device 2, a push-pull device, a hinge device 3, and a bottom trash rack, characterized in that The original rigidly connected trash rack is divided into two parts, the top and bottom parts. The top trash rack and the bottom trash rack are hinged through hinge device one. The two ends of the push-pull device are respectively hinged with hinge device two and hinge device three. The push-pull device controls the rotation of the top trash rack through hinge device two.
2. A trash rack with a rotatable top as claimed in claim 1, characterized in that: The second articulated device is fixed on the top trash rack, and the third articulated device is fixedly connected to the downstream wall.