Auxiliary throwing device for abrasion medium of stilling pool

Abstract

The utility model relates to the technical field of abrupt expansion drop sill stilling pool abrasion damage model tests, and discloses a stilling pool abrasion medium auxiliary throwing device which comprises a lifting arm frame part and a throwing box part, an inclined bottom medium box is arranged on the lower end face of a connecting plate, and the connecting plate is connected with the telescopic end of the lifting arm frame part. An opening baffle is arranged on one side of the inclined-bottom medium box in an up-down moving mode, the lifting arm frame part is installed on the pool wall of the stilling pool, in the throwing process, an abrasion medium is put into the inclined-bottom medium box, the inclined-bottom medium box is driven by the telescopic end of the lifting arm frame part to move downwards to the pool bottom, and the lower end of the opening baffle makes contact with the pool bottom and is jacked upwards; the opening of the opening baffle is aligned with the opening in the lower end of the inclined bottom medium box, so that the abrasion medium in the inclined bottom medium box slides to the pool bottom along the inclined bottom, manual throwing is not needed, the throwing point is more accurate, it can be ensured that the abrasion medium is thrown in place, and the experiment accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of erosion damage model test of stilling basins with sudden expansion and drop, and in particular to an auxiliary delivery device for erosion media in stilling basins. Background Technology

[0002] The sudden-expansion sloping stilling basin is proposed based on the traditional flat-bottomed stilling basin. It features a sloping section vertically at the reverse-arc end of the stilling basin and a sudden expansion horizontally. Abrasion damage to the stilling basin floor: Abrasion damage is one of the three major types of stilling basin failure (instability, abrasion, and cavitation). High-speed, sand-laden water flow damages the stilling basin floor due to the complex flow pattern. In the prototype stilling basin, the abrasive medium, composed of sand and gravel carried by the upstream flow or concrete blocks from the erosion of hydraulic structures, flows into the stilling basin. The model test, however, uses abrasive media with specific particle sizes and masses.

[0003] Currently, in simulation experiments, the high flow velocity of the upper water layer easily washes away the abrasive medium, so it cannot be directly placed from the surface. The abrasive medium must be manually added to the water during the experiment. However, manual addition leads to inaccurate placement points and wastes manpower. Therefore, there is an urgent need for an auxiliary device for adding abrasive media to the stilling basin. Utility Model Content

[0004] This invention provides an auxiliary device for dispensing abrasive media in a stilling pool, which solves the problem in the prior art that the abrasive media is easily washed away by the high flow velocity of the upper water layer, so it cannot be directly placed from the surface and needs to be manually placed into the water during the experiment. Manual placement leads to inaccurate placement points and wastes manpower.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A stilling basin abrasive media auxiliary dispensing device, comprising:

[0007] The lifting boom is installed on the wall of the stilling tank;

[0008] The delivery box is installed on the telescopic end of the lifting boom. The delivery box includes a connecting plate connected to the telescopic end of the lifting boom and a sloping-bottom medium box connected to the lower end surface of the connecting plate. An opening baffle is provided on one side of the sloping-bottom medium box, which can move up and down. A spring-loaded reset member is provided on the opening baffle, and the upper end of the spring-loaded reset member is connected to the connecting plate.

[0009] In one specific implementation, the lifting boom includes a support plate and an electric telescopic rod mounted on the support plate. The support plate is bolted to the wall of the stilling basin, and the telescopic end of the electric telescopic rod passes through the support plate.

[0010] In one specific implementation, the connecting plate is connected to the telescopic end of the electric telescopic rod, and a feeding port is provided at the other end of the connecting plate.

[0011] In one specific implementation, the upper opening of the sloping-bottom media box is aligned with the feeding port, and the side of the sloping-bottom media box is provided with a discharge port.

[0012] In one specific implementation, the opening baffle includes a positioning strip plate disposed on the inclined bottom medium box and a plate body positioned and inserted into the positioning strip plate, wherein the lower end of the plate body has a dispensing port.

[0013] In one specific implementation, the elastic reset component includes a guide post connected to the lower end face of the connecting plate and an orifice plate fixedly disposed on the upper end of the plate. The guide post is positioned and inserted into the hole of the orifice plate. A spring is fitted on the guide post, the lower end of the spring is connected to the orifice plate, and the upper end of the spring is connected to the connecting plate.

[0014] In one specific implementation, the diameter of the guide post matches the aperture of the orifice plate.

[0015] The beneficial effects of this utility model are:

[0016] The inclined-bottom medium box is placed on the lower end face of the connecting plate, and the connecting plate is connected to the telescopic end of the lifting boom. An opening baffle is installed on one side of the inclined-bottom medium box, which can move up and down. The lifting boom is installed on the wall of the stilling tank. During the dispensing process, the abrasive medium is placed into the inclined-bottom medium box. The telescopic end of the lifting boom moves the inclined-bottom medium box down to the bottom of the tank. The lower end of the opening baffle contacts the bottom of the tank and is pushed upward, so that the opening of the opening baffle is aligned with the opening at the lower end of the inclined-bottom medium box. This allows the abrasive medium in the inclined-bottom medium box to slide down the inclined bottom to the bottom of the tank. No manual dispensing is required, and the dispensing point is more precise, ensuring that the abrasive medium is dispensed in place and improving the accuracy of the experiment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2This is a schematic diagram of the lifting boom section of this utility model.

[0020] Figure 3 This is a schematic diagram of the dispensing box structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the electric telescopic rod of this utility model when it drives the delivery box to descend to the bottom of the stilling pool.

[0022] In the diagram: 100, lifting boom section; 110, pallet; 120, electric telescopic rod; 200, feeding box section; 210, connecting plate; 211, feeding port; 220, sloping bottom medium box; 230, opening baffle; 231, positioning strip; 232, plate body; 233, feeding port; 240, elastic reset component; 241, guide post; 242, orifice plate; 243, spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Reference Figure 1-4 As shown, this utility model provides an auxiliary dispensing device for abrasive media in a stilling basin, comprising:

[0031] The lifting boom section 100 is installed on the wall of the stilling basin;

[0032] The dispensing box 200 is installed on the telescopic end of the lifting boom 100. The dispensing box 200 includes a connecting plate 210 connected to the telescopic end of the lifting boom 100 and a sloping bottom medium box 220 connected to the lower end surface of the connecting plate 210. An opening baffle 230 is provided on one side of the sloping bottom medium box 220, which can be moved up and down. A spring-loaded reset member 240 is provided on the opening baffle 230, and the upper end of the spring-loaded reset member 240 is connected to the connecting plate 210.

[0033] A sloping-bottom medium box 220 is placed on the lower end face of a connecting plate 210, and the connecting plate 210 is connected to the telescopic end of a lifting arm 100. An opening baffle 230 is provided on one side of the sloping-bottom medium box 220 that can move up and down. The lifting arm 100 is installed on the wall of the stilling pool. During the dispensing process, the abrasive medium is placed into the sloping-bottom medium box 220. The telescopic end of the lifting arm 100 moves the sloping-bottom medium box 220 down to the bottom of the pool. The lower end of the opening baffle 230 contacts the bottom of the pool and is pushed upward, so that the opening of the opening baffle 230 is aligned with the opening at the lower end of the sloping-bottom medium box 220. This allows the abrasive medium in the sloping-bottom medium box 220 to slide down the sloping bottom to the bottom of the pool. No manual dispensing is required, and the dispensing point is more precise, ensuring that the abrasive medium is dispensed in place and improving the accuracy of the experiment.

[0034] As a further preferred embodiment of the above, the lifting boom section 100 includes a support plate 110 and an electric telescopic rod 120 mounted on the support plate 110. The support plate 110 is bolted to the wall of the stilling pool, and the telescopic end of the electric telescopic rod 120 passes through the support plate 110.

[0035] As a further preferred embodiment of the above implementation, the connecting plate 210 is connected to the telescopic end of the electric telescopic rod 120, and the other end of the connecting plate 210 is provided with a feeding port 211.

[0036] The upper opening of the inclined bottom media box 220 is aligned with the feeding port 211, and the side of the inclined bottom media box 220 is provided with a discharge port.

[0037] As a further preferred embodiment of the above-described embodiment, the opening baffle 230 includes a positioning strip 231 disposed on the inclined bottom medium box 220 and a plate body 232 positioned and inserted into the positioning strip 231, and the lower end of the plate body 232 is provided with a dispensing port 233.

[0038] As a further preferred embodiment of the above-described embodiment, the elastic reset member 240 includes a guide post 241 connected to the lower end face of the connecting plate 210 and an orifice plate 242 fixedly disposed on the upper end of the plate body 232. The guide post 241 is positioned and inserted into the hole of the orifice plate 242. A spring 243 is fitted on the guide post 241. The lower end of the spring 243 is connected to the orifice plate 242, and the upper end of the spring 243 is connected to the connecting plate 210.

[0039] Furthermore, the diameter of the guide post 241 matches the aperture of the orifice plate 242.

[0040] According to the experimental design, the maximum inflow velocity at the reverse arc end of the stilling basin model can reach 0.9 m / s. Manually adding abrasive media can easily cause the abrasive media to be carried away by the water flow, making it impossible to place it in the designated area. In the prototype observation, the abrasive damage of the stilling basin occurred in the corner coupling area on both sides of the sill, which was also verified in the model test. Therefore, in the experiment, it is necessary to add abrasive media on both sides simultaneously, as it is extremely inconvenient for a single person to add it manually.

[0041] This auxiliary delivery device is installed on both sides of the stilling basin. By simultaneously activating the electric telescopic rods 120, both sets of electric telescopic rods 120 can work at the same time, enabling the simultaneous delivery of abrasive media in the corner coupling areas on both sides, and allowing delivery to the designated area.

[0042] In use, the abrasive medium is added into the inclined-bottom medium box 220 through the feeding port 211. At this time, the orifice plate 242 is positioned by the action of the spring 243, so that the feeding port 233 of the opening baffle 230 is not aligned with the discharge port on the side of the inclined-bottom medium box 220. The abrasive medium can be stored in the inclined-bottom medium box 220. When the electric telescopic rod 120 is opened, the electric telescopic rod 120 drives the inclined-bottom medium box 220 to descend to the bottom of the pool. The lower end of the opening baffle 230 contacts the bottom of the pool and is pushed up, so that the feeding port 233 of the opening baffle 230 is aligned with the discharge port at the lower end of the inclined-bottom medium box 220. The abrasive medium in the inclined-bottom medium box 220 slides down the inclined bottom to the bottom of the pool, realizing the feeding of the abrasive medium.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for assisting in the dispensing of abrasive media in a stilling basin, characterized in that, include: A lifting boom section (100) is installed on the wall of the stilling pool; The delivery box (200) is installed on the telescopic end of the lifting boom (100). The delivery box (200) includes a connecting plate (210) connected to the telescopic end of the lifting boom (100) and a sloping-bottom medium box (220) connected to the lower end surface of the connecting plate (210). An opening baffle (230) is provided on one side of the sloping-bottom medium box (220) that can move up and down. An elastic reset member (240) is provided on the opening baffle (230). The upper end of the elastic reset member (240) is connected to the connecting plate (210).

2. The stilling basin abrasive medium auxiliary dispensing device according to claim 1, characterized in that: The lifting boom section (100) includes a support plate (110) and an electric telescopic rod (120) mounted on the support plate (110). The support plate (110) is bolted to the wall of the stilling pool, and the telescopic end of the electric telescopic rod (120) passes through the support plate (110).

3. The stilling basin abrasive medium auxiliary dispensing device according to claim 2, characterized in that: The connecting plate (210) is connected to the telescopic end of the electric telescopic rod (120), and the other end of the connecting plate (210) is provided with a feeding port (211).

4. The stilling basin abrasive medium auxiliary dispensing device according to claim 3, characterized in that: The upper opening of the inclined-bottom medium box (220) is aligned with the feeding port (211), and the side of the inclined-bottom medium box (220) is provided with a discharge port.

5. The stilling basin abrasive medium auxiliary dispensing device according to claim 4, characterized in that: The opening baffle (230) includes a positioning strip (231) disposed on the inclined bottom medium box (220) and a plate (232) inserted into the positioning strip (231). The lower end of the plate (232) is provided with a dispensing port (233).

6. The stilling basin abrasive medium auxiliary dispensing device according to claim 5, characterized in that: The elastic reset component (240) includes a guide post (241) connected to the lower end face of the connecting plate (210) and an orifice plate (242) fixedly disposed on the upper end of the plate body (232). The guide post (241) is positioned and inserted into the hole of the orifice plate (242). A spring (243) is fitted on the guide post (241). The lower end of the spring (243) is connected to the orifice plate (242), and the upper end of the spring (243) is connected to the connecting plate (210).

7. The stilling basin abrasive medium auxiliary dispensing device according to claim 6, characterized in that: The diameter of the guide post (241) matches the aperture of the orifice plate (242).

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