Pump station water inlet and outlet trash rack capable of being rapidly disassembled and assembled

Abstract

The utility model discloses a pump station water inlet and outlet trash rack capable of being quickly disassembled and assembled, which belongs to the field and comprises a frame and a plurality of vertically arranged grid bars, the grid bars are fixedly connected to the front end of the frame through a fixing mechanism, and the fixing mechanism comprises a supporting transverse plate, a fixing transverse plate, a concave seat, a threaded rod, a movable sleeve and a concave abutting plate. Compared with a traditional trash rack, the trash rack has the advantages that the whole structure does not need to be replaced when the grid bars are damaged like a traditional mode, only the damaged grid bars need to be replaced in a targeted mode, and therefore the material cost is greatly reduced; waste of the frame and undamaged grid bars caused by overall replacement is avoided, meanwhile, due to the design of rapid disassembly and assembly, the maintenance process is simple, convenient and rapid, manpower and time cost is remarkably saved, the influence on normal operation of the pump station is effectively reduced, the operation and maintenance difficulty and cost of the pump station are reduced, and the service life of the pump station is prolonged. And efficient and stable operation of the water conservancy project is powerfully guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of trash racks, and in particular to a quick-assembly and disassembly trash rack for pump station inlets and outlets. Background Technology

[0002] In water conservancy projects, installing trash racks at the inlet and outlet of pumping stations is a crucial measure to ensure the safe and efficient operation of these stations. Water flow at the pumping station inlet often carries debris such as branches, weeds, and plastic waste. If this debris enters the pumping station, it can entangle the pump blades, causing power imbalance, reduced efficiency, and even serious malfunctions like blade breakage. It can also clog the intake pipes, reducing the pumping capacity and failing to meet water supply or irrigation needs. At the outlet, trash racks prevent debris from wear and tear, aging, or maintenance residue from being discharged with the water flow, thus avoiding pollution, blockage, or damage to downstream rivers, aquatic ecosystems, or water conservancy facilities (such as sluice gates and irrigation canals). Installing trash racks effectively intercepts debris, protects pumping station equipment, ensures its normal operation, and maintains the safety of the downstream water environment and water conservancy facilities; it is an indispensable and important protective measure in water conservancy projects.

[0003] In existing technologies, trash racks generally consist of a frame and several bars for trapping debris, with the bars pre-fixed to the frame by welding. During use, the frame is bolted to the inlet and outlet of the pumping station. However, trash racks face numerous problems after prolonged use. Firstly, the bars are prone to damage and breakage due to the constant impact of water flow and debris. Secondly, the varying water flow conditions, debris types, and quantities in different areas can cause some bars to prematurely fail due to excessive local pressure. Since the bars are fixed to the frame, damaged bars cannot be individually disassembled and replaced. When bars are damaged, the entire trash rack usually needs to be replaced. This not only increases material costs (replacing the entire trash rack means discarding the still-usable frame and other undamaged bars), but also makes the replacement process cumbersome and time-consuming, requiring significant manpower and time, severely impacting the normal operating efficiency of the pumping station and increasing its maintenance difficulty and costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a quick-assembly and disassembly trash rack for pump station inlets and outlets, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-assembly and disassembly trash rack for pump station inlet and outlet includes a frame and several vertically arranged rack bars. The rack bars are fixedly connected to the front end of the frame by a fixing mechanism, which includes a supporting horizontal plate, a fixed horizontal plate, a concave seat, a threaded rod, a movable sleeve, and a concave clamping plate. The supporting horizontal plate is fixedly connected to the bottom of the front end of the frame, and the fixed horizontal plate is fixedly connected to the top of the front end of the frame. The concave seat is fixedly connected to the top surface of the fixed horizontal plate, and the threaded rod is movably connected to the bottom surface of the concave seat through a rotating rod at the top end. The movable sleeve is movably connected to the threaded rod through a connecting nut inside the top end, and the concave clamping plate is fixedly connected to the bottom end of the movable sleeve.

[0007] As a further description of the above technical solution, a support plate is fixedly installed at the bottom front end of the frame, and the top surface of the support plate is provided with a number of positioning slots corresponding to the grid bars in a horizontal array.

[0008] As a further description of the above technical solution, the fixed horizontal plate is fixedly installed on the top front end of the frame, and the top surface of the fixed horizontal plate is provided with a number of guide holes corresponding to the positioning slots. A set of symmetrical guide bars are fixedly installed on the inner wall of the guide holes.

[0009] As a further description of the above technical solution, the concave seat is fixedly installed on the top surface of the fixed horizontal plate in an inverted manner, and the top surface of the concave seat is also provided with a number of rotating holes corresponding to the guide holes.

[0010] As a further description of the above technical solution, the threaded rod is provided with several threads, and a rotating rod is fixedly installed at the top of the threaded rod. The rotating rod is movably installed in the rotating hole, and a knob is also fixedly installed at the top of the rotating rod.

[0011] As a further description of the above technical solution, the movable sleeve is inserted into the guide hole, and a set of symmetrical guide grooves corresponding to the guide bar are opened on the outer wall of the movable sleeve. A connecting nut is fixedly installed at the top of the inner cylinder of the movable sleeve, and the connecting nut is threadedly connected to the threaded rod. An inverted concave clamping plate is also fixedly installed at the bottom of the movable sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, the fixing mechanism, in conjunction with the use of the grid bars, allows the operator to easily remove damaged grid bars when one or more bars are damaged due to long-term water flow impact or debris collision. The operator simply rotates the corresponding knob, which in turn rotates the threaded rod. Since the movable sleeve is threadedly connected to the threaded rod via a connecting nut, and the guide groove on the outer wall of the movable sleeve cooperates with the guide bar on the inner wall of the guide hole to guide the movement, the movable sleeve will move smoothly upward along the threaded rod, thereby causing the concave abutment plate to move upward. This prevents the concave abutment plate from applying a clamping force to the grid bars, allowing the damaged grid bars to be easily removed individually.

[0014] When replacing a new grid bar, simply insert the bottom end of the grid bar precisely into the corresponding positioning slot on the support plate, and then rotate the knob in the opposite direction to move the concave clamping plate down until the grid bar is firmly fixed to the front end of the frame, thus quickly replacing the damaged grid bar.

[0015] Compared to traditional trash racks, this invention eliminates the need to replace the entire structure when a rack bar is damaged, as is the traditional method. Only the damaged bars need to be replaced, which greatly reduces material costs and avoids the waste of the frame and undamaged bars caused by replacing the whole structure. At the same time, this quick disassembly and assembly design makes the maintenance process simple and fast, significantly saving manpower and time costs, effectively reducing the impact on the normal operation of the pumping station, reducing the difficulty and cost of pumping station operation and maintenance, and strongly ensuring the efficient and stable operation of water conservancy projects, providing reliable support for the long-term stable operation of water conservancy projects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the supporting horizontal plate of this utility model;

[0018] Figure 3 This is a bottom view of the fixed horizontal plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the concave seat of this utility model;

[0020] Figure 5 This is a structural breakdown diagram of the fixing mechanism of this utility model.

[0021] In the diagram: 1. Frame; 2. Grid bar; 3. Fixing mechanism; 4. Supporting cross plate; 5. Positioning slot; 6. Fixing cross plate; 7. Guide hole; 8. Guide bar; 9. Concave seat; 10. Rotating hole; 11. Threaded rod; 12. Rotating rod; 13. Knob; 14. Movable sleeve; 15. Guide groove; 16. Connecting nut; 17. Concave clamping plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-5 As shown, a quick-assembly and disassembly trash rack for pump station inlets and outlets includes a frame 1 and several vertically arranged rack bars 2. The rack bars 2 are fixedly connected to the front end of the frame 1 by a fixing mechanism 3. The fixing mechanism 3 includes a supporting horizontal plate 4, a fixing horizontal plate 6, a concave seat 9, a threaded rod 11, a movable sleeve 14, and a concave abutment plate 17. The supporting horizontal plate 4 is fixedly connected to the bottom of the front end of the frame 1, and the fixing horizontal plate 6 is fixedly connected to the top of the front end of the frame 1. The concave seat 9 is fixedly connected to the top surface of the fixing horizontal plate 6, and the threaded rod 11 is movably connected to the bottom surface of the concave seat 9 through a rotating rod 12 at the top end. The movable sleeve 14 is movably connected to the threaded rod 11 through a connecting nut 16 inside the top end, and the concave abutment plate 17 is fixedly connected to the bottom end of the movable sleeve 14.

[0024] like Figure 2 As shown, a support plate 4 is fixedly installed at the bottom front end of the frame 1, and the top surface of the support plate 4 is provided with several positioning slots 5 corresponding to the grid strips 2 in a horizontal array. When installing the grid strips 2, the bottom part of the grid strips 2 is inserted into the corresponding positioning slots 5. The positioning slots 5 are used to initially position the bottom part of the grid strips 2, restricting the movement of the grid strips 2 in the horizontal direction, so that the grid strips 2 can be stably placed at the front end of the frame 1.

[0025] like Figure 3 As shown, the fixed horizontal plate 6 is fixedly installed on the top front end of the frame 1, and the top surface of the fixed horizontal plate 6 is provided with several guide holes 7 corresponding to the positioning slots 5. A set of symmetrical guide bars 8 are fixedly installed on the inner wall of the guide hole 7. The guide hole 7 is used to accommodate the movable sleeve 14 and provide a channel for the up and down movement of the movable sleeve 14. The guide bars 8 cooperate with the guide grooves 15 on the outer wall of the movable sleeve 14. When the movable sleeve 14 moves in the guide hole 7, the guide bars 8 slide in the guide grooves 15, which plays a guiding role and restricts the rotation of the movable sleeve 14, so that it can only move up and down along the axis of the guide hole 7.

[0026] like Figure 4As shown, the concave seat 9 is fixedly installed on the top surface of the fixed horizontal plate 6 in an inverted manner, and the top surface of the concave seat 9 is also provided with several rotating holes 10 corresponding to the guide hole 7. The design of the concave seat 9 and the rotating holes 10 provides support and protection for the rotation of the threaded rod 11, so that the threaded rod 11 can rotate stably, thereby realizing the up and down movement of the movable sleeve 14.

[0027] like Figure 5 As shown, several threaded rods 11 are provided, and a rotating rod 12 is fixedly installed at the top of each threaded rod 11. The rotating rod 12 is movably installed in the rotating hole 10, and a knob 13 is also fixedly installed at the top of the rotating rod 12. The knob 13 drives the rotating rod 12 to rotate within the rotating hole 10, thereby driving the threaded rod 11 to rotate. Since the connecting nut 16 inside the movable sleeve 14 is threadedly connected to the threaded rod 11, according to the principle of thread transmission, the rotation of the threaded rod 11 will cause the movable sleeve 14 to move up and down along the axis of the threaded rod 11.

[0028] like Figure 5 As shown, the movable sleeve 14 is inserted into the guide hole 7, and a set of symmetrical guide grooves 15 corresponding to the guide bar 8 are provided on the outer wall of the movable sleeve 14. A connecting nut 16 is fixedly installed at the top of the movable sleeve 14, and the connecting nut 16 is threadedly connected to the threaded rod 11. An inverted concave abutment plate 17 is also fixedly installed at the bottom of the movable sleeve 14. When the threaded rod 11 rotates, the movable sleeve 14 moves up and down along the threaded rod 11 under the guidance of the guide bar 8 and the guide grooves 15. When the movable sleeve 14 moves downward, it drives the concave abutment plate 17 to move downward, pressing the grid bar 2 against the support cross plate 4, and making the upper part of the grid bar 2 stuck in the recess of the concave abutment plate 17. When the movable sleeve 14 moves upward, it drives the concave abutment plate 17 to move upward, releasing the pressure on the grid bar 2, thereby facilitating the quick disassembly and replacement of the grid bar 2.

[0029] The specific operating principle of the trash rack used at the inlet and outlet of the pumping station in water conservancy projects is as follows:

[0030] When installing the grid bar 2, first align the bottom end of the grid bar 2 with the corresponding positioning slot 5 on the bottom support plate 4 at the front end of the frame 1. Since the positioning slots 5 are arranged in a horizontal array on the top surface of the support plate 4, after inserting the bottom end of the grid bar 2 into the positioning slot 5, the positioning slot 5 can initially position the bottom end of the grid bar 2, restricting the horizontal movement of the grid bar 2 and making the grid bar 2 stably placed at the front end of the frame 1. Next, the operator rotates the knob 13 at the corresponding position on the concave seat 9 at the top of the front end of the frame 1. The knob 13 drives the rotating rod 12, which is fixedly installed at the top of the threaded rod 11, to rotate in the rotating hole 10 opened on the top surface of the concave seat 9, thereby driving the threaded rod 11 to rotate. At this time, the movable sleeve inserted in the guide hole 7 on the top surface of the fixed plate 6... 14. The connecting nut 16 fixedly installed at the top of the sleeve is threadedly connected to the threaded rod 11. A set of symmetrical guide grooves 15 opened on the outer wall of the movable sleeve 14 cooperates with a set of symmetrical guide bars 8 fixedly installed on the inner wall of the guide hole 7 to play a guiding role, restrict the rotation of the movable sleeve 14, and make it only move up and down along the axis of the guide hole 7. As the threaded rod 11 rotates, the movable sleeve 14 moves smoothly downward along the threaded rod 11, thereby driving the inverted concave abutment plate 17 fixedly connected to the bottom of the movable sleeve 14 to move downward until the concave abutment plate 17 presses the grid bar 2 against the support cross plate 4 and makes the upper part of the grid bar 2 stuck in the recess of the concave abutment plate 17, thereby firmly fixing the grid bar 2 to the front end of the frame 1.

[0031] When one or more bars of the trash rack are damaged due to long-term water flow impact and debris impact after prolonged use, the operator only needs to turn the corresponding knob 13. The knob 13 drives the threaded rod 11 to rotate in the opposite direction through the rotating rod 12. Under the guidance of the guide bar 8 and the guide groove 15, the movable sleeve 14 moves smoothly upward along the threaded rod 11, thereby driving the concave pressing plate 17 to move upward, so that the concave pressing plate 17 no longer applies a pressing force to the bar 2. At this time, the damaged bar 2 can be easily removed.

[0032] When replacing the new grid bar 2, simply insert the bottom end of the new grid bar 2 precisely into the corresponding positioning slot 5 on the support plate 4, and then rotate the corresponding knob 13 in the opposite direction to move the concave clamping plate 17 down until the new grid bar 2 is firmly fixed to the front end of the frame 1 in a clamping manner. This quickly completes the replacement of the damaged grid bar 2. Unlike the traditional method, this design does not require replacing the entire structure when the grid bar 2 is damaged. Only the damaged grid bar 2 needs to be replaced, which greatly reduces material costs and avoids the waste of the frame 1 and undamaged grid bars 2 caused by overall replacement. At the same time, the quick disassembly and assembly design makes the maintenance process simple and fast, significantly saving manpower and time costs, effectively reducing the impact on the normal operation of the pumping station, reducing the difficulty and cost of pumping station operation and maintenance, and effectively ensuring the efficient and stable operation of water conservancy projects.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-assembly and disassembly trash rack for pump station inlet and outlet, comprising a frame (1) and several vertically arranged rack bars (2), characterized in that: The grid bar (2) is fixedly connected to the front end of the frame (1) by a fixing mechanism (3). The fixing mechanism (3) includes a supporting horizontal plate (4), a fixing horizontal plate (6), a concave seat (9), a threaded rod (11), a movable sleeve (14), and a concave abutment plate (17). The supporting horizontal plate (4) is fixedly connected to the bottom of the front end of the frame (1), and the fixing horizontal plate (6) is fixedly connected to the top of the front end of the frame (1). The concave seat (9) is fixedly connected to the top surface of the fixing horizontal plate (6), and the threaded rod (11) is movably connected to the bottom surface of the concave seat (9) through a rotating rod (12) at the top end. The movable sleeve (14) is movably connected to the threaded rod (11) through a connecting nut (16) inside the top end, and the concave abutment plate (17) is fixedly connected to the bottom end of the movable sleeve (14).

2. The quick-assembly and disassembly trash rack for pump station inlets and outlets according to claim 1, characterized in that: The front bottom of the frame (1) is fixedly installed with a support plate (4), and the top surface of the support plate (4) is provided with a number of positioning slots (5) corresponding to the grid strips (2) in a horizontal array.

3. A quick-assembly and disassembly trash rack for pump station inlets and outlets according to claim 2, characterized in that: The fixed horizontal plate (6) is fixedly installed on the top front end of the frame (1), and the top surface of the fixed horizontal plate (6) is provided with a number of guide holes (7) corresponding to the positioning slots (5). A set of symmetrical guide strips (8) are fixedly installed on the inner wall of the guide holes (7).

4. A quick-assembly and disassembly trash rack for pump station inlets and outlets according to claim 3, characterized in that: The concave seat (9) is fixedly installed on the top surface of the fixed horizontal plate (6) in an inverted manner, and the top surface of the concave seat (9) is also provided with a number of rotating holes (10) corresponding to the guide hole (7).

5. A quick-assembly and disassembly trash rack for pump station inlets and outlets according to claim 4, characterized in that: The threaded rod (11) is provided with several threads, and a rotating rod (12) is fixedly installed at the top of the threaded rod (11). The rotating rod (12) is movably installed in the rotating hole (10), and a knob (13) is also fixedly installed at the top of the rotating rod (12).

6. A quick-assembly and disassembly trash rack for pump station inlets and outlets according to claim 5, characterized in that: The movable sleeve (14) is inserted into the guide hole (7), and a set of symmetrical guide grooves (15) corresponding to the guide bar (8) are provided on the outer wall of the movable sleeve (14). A connecting nut (16) is fixedly installed at the top of the inner end of the movable sleeve (14), and the connecting nut (16) is threadedly connected to the threaded rod (11). An inverted concave clamping plate (17) is also fixedly installed at the bottom end of the movable sleeve (14).

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