Variable-angle screen plate grille
By using a motor-driven lead screw and rack and pinion mechanism for the variable-angle mesh screen, precise adjustment of the screen angle and position can be achieved, solving the problem that the mesh screen cannot be dynamically adjusted, and improving sewage treatment efficiency and equipment stability.
Patent Information
- Application Number
- CN202520300273.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing screen grids cannot dynamically adjust their angle according to changes in influent flow rate and velocity, leading to problems such as waste accumulation, blockage, equipment damage, and maintenance difficulties.
The system employs a variable-angle mesh grille, which uses a motor-driven lead screw and rack and pinion mechanism to achieve precise adjustment of the grille's angle and position. Combined with motor-controlled movement of the grille at different heights, this enhances interception and cleaning efficiency.
It improves the efficiency of sewage treatment, prevents floating objects from entering the equipment, reduces maintenance difficulty and time costs, and extends the service life of the equipment.
Smart Images

Figure CN223874607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of net board grating adjusting equipment, especially to a variable-angle net board grating. BACKGROUND
[0002] The net board grating is a kind of equipment with net-shaped plate structure, usually used for filtering, screening, protection and other functions, and its basic structure is composed of a frame and a net board installed in the frame, the net board has regularly arranged holes or gaps for filtering, screening or blocking different size particles.
[0003] When treating fluid, the net board grating cannot change the angle to optimize the interception effect when the water inflow and flow rate change, but most of the gratings can only maintain a fixed angle, which may cause garbage to accumulate in front of the grating, block the grating, reduce the efficiency of the entire sewage treatment process, and make floating objects enter the water conservancy facility, causing damage to the equipment. When in use, the net board grating cannot realize dynamic change of angle, so it becomes very passive in the scene where the grating angle needs to be adjusted flexibly according to different working conditions. In the sewage treatment plant, the water quality and quantity of the incoming water are dynamically changing, so it is difficult to place the grating at the appropriate angle according to the incoming water, which leads to poor interception of sundries, and the grating can only be installed at a fixed angle, which may not effectively cope with these changes, and may require maintenance personnel to work in a narrow and inconvenient space, increasing the difficulty and time cost of maintenance. SUMMARY
[0004] The main purpose of the utility model is to provide a variable-angle net board grating, which can effectively solve the problems of reducing the efficiency of the entire sewage treatment process, making floating objects enter the water conservancy facility, causing damage to the equipment, and leading to poor interception of sundries, and the grating can only be installed at a fixed angle, which may not effectively cope with these changes, and may require maintenance personnel to work in a narrow and inconvenient space, increasing the difficulty and time cost of maintenance.
[0005] To achieve the above object, the utility model provides the following technical scheme: A variable angle net board grid, including machine body, the bottom of machine body is provided with bottom plate, the right side of machine body front and back both sides are all fixedly connected with connecting shaft, the top wall right side of bottom plate is all fixedly connected with first support plate, the outside of two connecting shafts is rotatably connected in the inside of first support plate, the upside wall of bottom plate is fixedly connected with device box, the inside left side of device box is provided with first motor, the output of first motor is fixedly connected with lead screw, the right end of lead screw is fixedly connected with support ring, the right end of support ring is rotatably connected in the right side wall inside of device box, the outside of lead screw is slidably connected with thread sleeve, the outside of thread sleeve is fixedly connected with first connecting ring, the front and back both sides of first connecting ring are rotatably connected with first support rod, the top wall inside of two first support rods is rotatably connected with connecting column.
[0006] Further, the bottom wall of the machine body is fixedly connected with a first connecting plate, the bottom wall of the first connecting plate is fixedly connected with a guide rail groove, the front and rear ends of the connecting column are slidably connected in the inside of the guide rail groove, the middle portions of the two first support rods are rotatably connected with a second support rod, the other side of the second support rod is rotatably connected with a second support plate, and the bottom wall of the second support plate is fixedly connected to the inside right side of the device box.
[0007] Further, the bottom of the bottom plate is fixedly connected with a base, the rear side wall of the machine body is fixedly connected with a protection box, the inside of the protection box is provided with a second motor, the output end of the second motor is fixedly connected with a first rotating rod, and the front end of the first rotating rod is rotatably connected to the inside of the front side wall of the machine body.
[0008] Further, the front and rear ends of the first rotating rod are fixedly connected with first gears, the inside left side of the machine body is rotatably connected with a second rotating rod, the front and rear ends of the second rotating rod are fixedly connected with second gears outside, and the inside front and rear sides of the machine body are provided with rack rings.
[0009] Further, the outside of the two first gears and second gears is engaged with the inside of the two rack rings, the outside of the two rack rings is fixedly connected with second connecting rings, the inner wall of each second connecting ring is fixedly connected with a connecting block, and the other side of each two connecting blocks is fixedly connected with a grid.
[0010] Further, the left side wall of the machine body is fixedly connected with a guide plate, the left side top of the machine body is fixedly connected with a second connecting plate, and the outside of the second connecting plate is threadedly connected with a concave block.
[0011] Further, the right side wall of the concave block is fixedly connected with a rake, and the rake is correspondingly arranged with the grid.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1, the utility model discloses a device box, first motor, screw rod, first connecting ring, first connecting plate and second support plate are set up, can solve the problem of the efficiency of the whole sewage treatment process is caused, and make the float into the water conservancy facilities inside, cause damage to equipment, through the first branch swing process, the middle portion is rotatably connected with the second branch, the other side of second branch is rotatably connected with the second support plate of the right side in the device box interior.
[0014] 2, through setting up second motor, first gear, second gear, rack ring and grid, can solve the problem that the impurities can not be better intercepted, the grid can only be installed at a fixed angle, can not effectively cope with these changes, and cause maintenance personnel can need to work in the narrow, inconvenient space, increase the difficulty and time cost of maintenance, through the synchronous rotation of the first gear fixed at the front and rear ends of the first rotating rod, since the first gear is engaged with the rack ring set on the front and rear sides in the body, and the second gear on the outer side of the front and rear ends of the second rotating rod is also engaged with the rack ring, when the first gear rotates, the rack ring is driven to move linearly through the meshing effect, the second connecting ring fixedly connected with the outer side of the rack ring moves together, and the connecting block fixedly connected with the inner wall of the second connecting ring drives the grid to move.
[0015] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A three-dimensional structure diagram of the variable-angle mesh plate grid is provided for the utility model;
[0017] Figure 2 An adjustment schematic view of the variable-angle mesh plate grid is provided for the utility model;
[0018] Figure 3A first connecting plate structure diagram of a variable-angle net plate grid is provided in the utility model.
[0019] Figure 4 A first supporting rod structure diagram of a variable-angle net plate grid is provided in the utility model.
[0020] Figure 5 A screw structure diagram of a variable-angle net plate grid is provided in the utility model.
[0021] Figure 6 A first supporting plate structure diagram of a variable-angle net plate grid is provided in the utility model.
[0022] Figure 7 A second rotating rod schematic diagram of a variable-angle net plate grid is provided in the utility model.
[0023] Figure 8 A first gear structure diagram of a variable-angle net plate grid is provided in the utility model.
[0024] Figure 9 A grid structure diagram of a variable-angle net plate grid is provided in the utility model.
[0025] Figure 10 A rake structure diagram of a variable-angle net plate grid is provided in the utility model.
[0026] Legend:
[0027] 1, machine body; 2, bottom plate; 3, first supporting plate; 4, connecting shaft; 5, device box; 6, first motor; 7, screw; 8, supporting ring; 9, threaded sleeve; 10, first connecting ring; 11, first supporting rod; 12, connecting column; 13, first connecting plate; 14, guide rail groove; 15, second supporting plate; 16, second supporting rod; 17, base; 18, protection box; 19, second motor; 20, first rotating rod; 21, first gear; 22, second rotating rod; 23, second gear; 24, rack ring; 25, second connecting ring; 26, connecting block; 27, grid; 28, deflector; 29, second connecting plate; 30, concave block; 31, rake. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0029] As Figure 1 - Figure 5As shown: A variable angle mesh grid includes a body 1, a base plate 2 at the bottom of the body 1, which supports and fixes the device at the top. Connecting shafts 4 are fixedly connected to the front and rear sides of the right side of the body 1. A first support plate 3 is fixedly connected to the right side of the top wall of the base plate 2. The outer sides of the two connecting shafts 4 are rotatably connected to the inside of the first support plate 3. The connecting shafts 4 on the right side of the body 1 rotate inside the first support plate 3. When the device at the top of the base plate 2 drives the body 1 to adjust its height, it supports and fixes the right side of the body 1.
[0030] A device box 5 is fixedly connected to the upper side wall of the base plate 2. A first motor 6 is located on the left side inside the device box 5. A lead screw 7 is fixedly connected to the output end of the first motor 6. A support ring 8 is fixedly connected to the right end of the lead screw 7. The right end of the support ring 8 is rotatably connected to the inside of the right side wall of the device box 5. A threaded sleeve 9 is slidably connected to the outside of the lead screw 7. A first connecting ring 10 is fixedly connected to the outside of the threaded sleeve 9. When the first motor 6 inside the device box 5 is started, the first motor 6 operates, and its output end drives the lead screw 7 to rotate. The right end of the lead screw 7 is rotatably connected to the right side wall of the device box 5 through the support ring 8, ensuring that the lead screw 7 can rotate stably around its axis. The threaded sleeve 9 on the outside of the lead screw 7 is slidably connected to the lead screw 7 through threaded engagement. Furthermore, when the lead screw 7 rotates, the threaded sleeve 9 moves linearly along the axial direction of the lead screw 7, and the first connecting ring 10 fixedly connected to the threaded sleeve 9 moves synchronously.
[0031] First support rods 11 are rotatably connected to both the front and rear sides of the first connecting ring 10. Connecting columns 12 are rotatably connected to the top walls of the two first support rods 11. A first connecting plate 13 is fixedly connected to the bottom wall of the body 1. A guide rail groove 14 is fixedly connected to the bottom wall of the first connecting plate 13. The front and rear ends of the connecting column 12 are slidably connected to the inside of the guide rail groove 14. A second support rod 16 is rotatably connected to the middle of the two first support rods 11. A second support plate 15 is rotatably connected to the other side of the second support rod 16. The bottom wall of the second support plate 15 is fixedly connected to the right side of the inside of the device box 5. The movement of the first support rods 11, which are rotatably connected to the front and rear sides of the first connecting ring 10, is constrained by the connecting columns 12. The front and rear ends of the connecting column 12 slide within the guide rail groove 14 fixed by the first connecting plate 13 on the bottom wall of the body 1. The guide rail groove 14 limits the movement path of the connecting column 12, so that the first support rod 11 can only swing along a specific trajectory. During the swinging process of the first support rod 11, its middle part is rotatably connected to the second support rod 16, and the other side of the second support rod 16 is rotatably connected to the second support plate 15 on the right side inside the device box 5. The second support rod 16 plays the role of assisting in supporting and stabilizing the movement of the first support rod 11, ensuring the smoothness and reliability of the entire movement process.
[0032] like Figure 6 - Figure 8As shown, the bottom of the bottom plate 2 is fixedly connected with the base 17, the bottom of the bottom plate 2 is supported by the base 17, the rear wall of the machine body 1 is fixedly connected with the protection box 18, the inside of the protection box 18 is provided with the second motor 19, the inside of the protection box 18 is provided with the second motor 19, the inside of the protection box 18 is provided with the second motor 19, and the second motor 19 is fixed on the rear wall of the machine body 1.
[0033] The output end of the second motor 19 is fixedly connected with the first rotating rod 20, the front end of the first rotating rod 20 is rotatably connected in the front wall of the machine body 1, the front and rear ends of the first rotating rod 20 are fixedly connected with the first gear 21, the inside of the machine body 1 is rotatably connected with the second rotating rod 22, the outside of the front and rear ends of the second rotating rod 22 is fixedly connected with the second gear 23, the inside of the machine body 1 is provided with the rack ring 24, the output end of the second motor 19 drives the first rotating rod 20 to rotate after starting. The first gear 21 fixedly connected with the first rotating rod 20 rotates synchronously, since the first gear 21 is engaged with the rack ring 24 provided on the inside of the machine body 1, and the second gear 23 on the outside of the front and rear ends of the second rotating rod 22 is also engaged with the rack ring 24, when the first gear 21 rotates, the rack ring 24 is driven to move linearly by the engagement.
[0034] As shown in Figure 6 Figure 10 The outside of the two first gears 21 and the second gear 23 is engaged with the inside of the two rack rings 24, the outside of the two rack rings 24 is fixedly connected with the second connecting ring 25, the inner wall of each second connecting ring 25 is fixedly connected with the connecting block 26, the other side of each two connecting blocks 26 is fixedly connected with the grille 27, the second connecting ring 25 fixedly connected with the outside of the rack ring 24 will move with the rack ring 24, and the left side of the rack ring 24 is supported by the second gear 23, the connecting block 26 fixedly connected with the inner wall of the second connecting ring 25 drives the grille 27 to move, and the grille 27 can move up and down in the machine body 1 by controlling the forward and reverse rotation of the second motor 19, so as to realize the filtering operation at different height positions.
[0035] The left side wall of the body 1 is fixedly connected with a flow guide plate 28, the left top of the body 1 is fixedly connected with a second connecting plate 29, the outer side of the second connecting plate 29 is threadedly connected with a recess block 30, the right side wall of the recess block 30 is fixedly connected with a rake 31, the rake 31 is correspondingly arranged with the grating 27, the second connecting plate 29 is threadedly connected with the recess block 30 on the left side of the rake 31, when it is needed to disassemble, clean and replace, the rake 31 is disassembled by unscrewing the screw in the recess block 30 from the inside of the second connecting plate 29, so that the rake 31 is replaced and cleaned. In addition, when the grating 27 rotates to the left top inside the body 1, the left side of the rake 31 is in contact with the grating 27, so that the adhered impurity particles in the grating 27 are scraped off and fall on the flow guide plate 28, and the impurity particles are guided by the flow guide plate 28, so that the impurities are discharged from the inside of the body 1.
[0036] It should be noted that the utility model is a variable-angle net plate grating, first, the first motor 6 and the second motor 19 are connected with the external power supply and the control end to supply power and control the device.
[0037] When the angle of the net plate grating needs to be adjusted, the first motor 6 in the device box 5 is started. The first motor 6 operates, and the output end drives the screw rod 7 to rotate. The right end of the screw rod 7 is rotatably connected with the right side wall of the device box 5 through the support ring 8, so that the screw rod 7 can stably rotate around the shaft. The threaded sleeve 9 on the outer side of the screw rod 7 moves linearly along the axial direction of the screw rod 7 due to the threaded connection with the screw rod 7. The first connecting ring 10 fixedly connected with the threaded sleeve 9 moves synchronously.
[0038] The first connecting ring 10 is rotatably connected with the first support rod 11 on the front and back sides, and the movement of the first support rod 11 is constrained by the connecting column 12. The front and back ends of the connecting column 12 slide in the guide groove 14 fixed by the first connecting plate 13 on the bottom wall of the body 1, and the guide groove 14 limits the movement path of the connecting column 12, so that the first support rod 11 can only swing along a specific trajectory.
[0039] In the swinging process of the first support rod 11, the middle part is rotatably connected with the second support rod 16, and the other side of the second support rod 16 is rotatably connected with the second support plate 15 on the right side in the device box 5. The second support rod 16 plays a role in assisting the support and stabilizing the movement of the first support rod 11, so as to ensure the stability and reliability of the whole movement process. Since the body 1 is rotatably connected with the first support plate 3 on the bottom plate 2 through the right connecting shaft 4, the body 1 changes the angle around the connecting shaft 4, and by accurately controlling the rotation direction, speed and time of the first motor 6, the angle of the body 1 can be accurately adjusted.
[0040] First, the second motor 19 located in the protection box 18 starts, its output end drives the first rotating rod 20 to rotate. The first gear 21 fixed on the front and back of the first rotating rod 20 rotates synchronously, since the first gear 21 is engaged with the rack ring 24 arranged on the inside of the machine body 1, and the second gear 23 on the outer side of the front and back of the second rotating rod 22 is also engaged with the rack ring 24, when the first gear 21 rotates, the rack ring 24 is driven to move linearly through the engagement, the second connecting ring 25 fixedly connected with the outer side of the rack ring 24 moves with the rack ring 24, the connecting block 26 fixedly connected with the inner wall of the second connecting ring 25 drives the grid 27 to move. Through the control of the forward and reverse rotation of the second motor 19, the grid 27 can move up and down in the machine body 1, so as to realize the filtering operation at different height positions, the grid position can be flexibly adjusted according to the distribution of sundries in the actual water flow, and the filtering effect and adaptability are improved.
[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by the skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A variable angle net panel grid comprising a housing (1) characterised in that: The bottom of the machine body (1) is provided with a bottom plate (2), the right side of the machine body (1) is fixedly connected with a connecting shaft (4), the top wall of the right side of the bottom plate (2) is fixedly connected with a first support plate (3), the outer side of the two connecting shafts (4) is rotatably connected inside the first support plate (3), the upper side wall of the bottom plate (2) is fixedly connected with a device box (5), the inside left side of the device box (5) is provided with a first motor (6), the output end of the first motor (6) is fixedly connected with a lead screw (7), the right end of the lead screw (7) is fixedly connected with a support ring (8), the right end of the support ring (8) is rotatably connected inside the right side wall of the device box (5), the outer side of the lead screw (7) is slidably connected with a threaded sleeve (9), the outer side of the threaded sleeve (9) is fixedly connected with a first connecting ring (10), the front and rear sides of the first connecting ring (10) are rotatably connected with a first supporting rod (11), the top wall inside the two first supporting rods (11) is rotatably connected with a connecting column (12).
2. A variable angle net panel grid according to claim 1, wherein: The bottom wall of the machine body (1) is fixedly connected with a first connecting plate (13), the bottom wall of the first connecting plate (13) is fixedly connected with a guide rail groove (14), the front and rear ends of the connecting column (12) are slidably connected inside the guide rail groove (14), the middle part of the two first supporting rods (11) is rotatably connected with a second supporting rod (16), the other side of the second supporting rod (16) is rotatably connected with a second support plate (15), the bottom wall of the second support plate (15) is fixedly connected inside the right side of the device box (5).
3. A variable angle net panel grid according to claim 1, wherein: The bottom of the bottom plate (2) is fixedly connected with a base (17), the rear side wall of the machine body (1) is fixedly connected with a protection box (18), the inside of the protection box (18) is provided with a second motor (19), the output end of the second motor (19) is fixedly connected with a first rotating rod (20), the front end of the first rotating rod (20) is rotatably connected inside the front side wall of the machine body (1).
4. A variable angle deck grating according to claim 3, wherein: The front and rear ends of the first rotating rod (20) are fixedly connected with a first gear (21), the inside left side of the machine body (1) is rotatably connected with a second rotating rod (22), the front and rear ends of the outside of the second rotating rod (22) are fixedly connected with a second gear (23), the inside of the machine body (1) is provided with a rack ring (24) on the front and rear sides.
5. A variable angle net panel grid according to claim 4, wherein: The outside of the front and rear first gears (21) and second gears (23) is engaged with the inside of the two rack rings (24), the outside of the two rack rings (24) is fixedly connected with a second connecting ring (25), the inner wall of each second connecting ring (25) is fixedly connected with a connecting block (26), the other side of every two connecting blocks (26) is fixedly connected with a grille (27).
6. A variable angle net panel grid according to claim 1, wherein: The left side wall of the machine body (1) is fixedly connected with a guide plate (28), the left side top of the machine body (1) is fixedly connected with a second connecting plate (29), the outside of the second connecting plate (29) is threadedly connected with a concave block (30).
7. A variable angle net panel grid according to claim 6, wherein: The right side wall of the concave block (30) is fixedly connected with a rake (31), and the rake (31) is correspondingly arranged with the grid (27).