Grid for sewage treatment

Abstract

The utility model discloses a grid for sewage treatment, which relates to the technical field of sewage treatment, and comprises a fixed frame, two side walls of which are respectively provided with a first sliding chute, a second sliding chute, a third sliding chute and a fourth sliding chute in parallel along the vertical direction, the second sliding groove is formed in front of the first sliding groove; the grille assembly is arranged in the fixing frame and comprises a plurality of grille strips arranged in parallel, and the two ends of the grille strips are slidably connected with the first sliding grooves correspondingly; the rear ends of the connecting rods are hinged to the grating bars, the front end of the lowermost connecting rod is hinged to the second sliding groove, the front ends of the other connecting rods are slidably connected with the second sliding groove, and the connecting rods are hinged end to end; each end of the uppermost grid bar is hinged to one connecting rod, and each end of each of the rest grid bars is hinged to two connecting rods; the two ends of the pushing piece are connected with the first sliding groove and the second sliding groove correspondingly. The device provided by the utility model can automatically adjust the distance between the grating strips and keep the distance consistent, so that the manual processing time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a grid for sewage treatment. Background Art

[0002] The screen can continuously and automatically remove debris of various shapes from the fluid to achieve the purpose of solid-liquid separation, and is widely used in the sewage treatment industry.

[0003] In the prior art, the grille is generally composed of a group of parallel bars, and the size between the bars is fixed. In different application scenarios, different partition spacing is often required, and the partition spacing is kept consistent. The patent (publication number: CN218485271U) discloses a high-precision stepped fine grille, the adjustable grille includes two threaded rods and a plurality of grille plates, the top and bottom of the fixed frame are provided with sliding grooves, the two threaded rods are respectively fixedly connected horizontally in the two sliding grooves, and the plurality of grille plates are arranged at equal intervals, the top and bottom of the grille plate are respectively slidably matched with the two threaded rods, each of the grille plates is provided with nuts at both ends of the threaded rod, the nuts are threadedly connected to the threaded rods, and the two ends of the grille plate are respectively slidably matched with the two sliding grooves, by moving the distance between the grille plates and rotating the four nuts to fix the position of the grille plates, it can be used in different application environments to improve the applicability of the grille. However, this device, the way of fixing the grille plates, requires a large amount of manual processing time for the nuts, and if the spacing of the grille plates is to be consistent, more manual processing time is required. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a sewage treatment grid, which can automatically adjust the spacing between grid bars and keep the spacing consistent, thus saving manual processing time.

[0005] In order to achieve the above utility model purpose, the technical solution of the utility model is as follows:

[0006] Sewage treatment screens, including:

[0007] The fixed frame has two side walls which are parallelly provided with:

[0008] A first slide groove, which is fixedly connected to the fixing frame;

[0009] A second chute, which is arranged in front of the first chute;

[0010] The grille assembly is arranged inside the fixed frame and includes:

[0011] A plurality of grille bars are arranged in parallel, and both ends of the grille bars are respectively slidably connected to the first slide groove;

[0012] A plurality of connecting rods are provided, the rear end of each connecting rod is hinged to the grille bar, the front end of the lowest connecting rod is hinged to the second slide slot, the front ends of the remaining connecting rods are slidably connected to the second slide slot, and the connecting rods are hinged at the head and tail;

[0013] Each end of the top grille bar is hinged to a connecting rod, and each end of the remaining grille bars is hinged to two connecting rods;

[0014] A pushing member, two ends of which are respectively connected to the first sliding groove and the second sliding groove on the same side, and the pushing member is used to change the relative distance between the first sliding groove and the second sliding groove.

[0015] Furthermore, the pushing member is an electric screw, two ends of which are respectively threadedly connected to the first slide groove and the second slide groove, and the threads at the two ends of the electric screw have opposite rotation directions.

[0016] Furthermore, the grille assembly further comprises:

[0017] A first sliding block is slidably connected to the first sliding groove, both ends of the grille bar are respectively fixedly connected to the first sliding block, and the rear end of the connecting rod is hinged to the first sliding block;

[0018] The second slider is slidably connected to the second slide slot, and the front ends of the other connecting rods are hinged to the second slider. Further, a limit piece is detachably provided on the upper end of the first slide slot, and the limit piece abuts against the upper side of the uppermost first slider.

[0019] Furthermore, a top plate is detachably provided on the upper end of the fixing frame.

[0020] Furthermore, the cross section of the grille bar is trapezoidal, the lower bottom of the trapezoid faces forward, and the upper bottom is provided with reinforcing ribs.

[0021] The utility model at least has the following beneficial effects:

[0022] The utility model provides a sewage treatment grid, in which a first slide slot and a second slide slot are respectively arranged in parallel on both side walls of a fixed frame in the up-down direction, and both ends of the grid bar are slidably connected with the first slide slot, and a pusher and a plurality of connecting rods hinged end to end are arranged between the first slide slot and the second slide slot, the rear end of the connecting rod is hinged with the grid bar, the front end of the lowest connecting rod is hinged with the second slide slot, and the front ends of the remaining connecting rods are slidably connected with the second slide slot. When the pusher changes the relative distance between the first slide slot and the second slide slot, the folding state of the connecting rod changes, thereby changing the relative distance between the grid bars, and the relative distance between the grid bars changes by the same amount.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of a sewage treatment grid structure in a technical solution.

[0025] Figure 2 for Figure 1 AA section view.

[0026] Figure 3 for Figure 2 View in the direction of BB arrow.

[0027] Figure 4 for Figure 2 View in the direction of CC arrow.

[0028] Figure 5 It is a schematic diagram of the cross section of the grille bars in one technical solution of the utility model.

[0029] In the figure, 1. fixed frame tube; 11. first slide groove; 111. limit member; 112. fixed frame; 12. second slide groove; 13. top plate; 2. grille assembly; 21. grille bar; 211. reinforcing rib; 22. connecting rod; 23. first slider; 231. first connecting column; 24. second slider; 241. second connecting column; 3. pushing member. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with embodiments so that those skilled in the art can implement the invention with reference to the description.

[0031] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood in specific circumstances. The orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "counterclockwise", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0032] Example

[0033] like Figure 1 , Figure 2 As shown, the utility model provides a grid frame for sewage treatment, comprising:

[0034] The fixed frame 1 has two side walls which are parallelly provided with:

[0035] A first slide groove 11, which is fixedly connected to the fixing frame 1 via a fixing frame 112;

[0036] The second chute 12 is arranged in front of the first chute 11. Relative to the first chute 11, the second chute 12 is arranged in the opposite direction of the sewage flow; that is, each side of the two side walls of the fixed frame 1 has a set of first chute 11 and second chute 12;

[0037] The grille assembly 2 is arranged inside the fixed frame 1 and includes:

[0038] A plurality of grid bars 21 are arranged in parallel, and both ends of the grid bars 21 are slidably connected to the first slide grooves 11 respectively;

[0039] A plurality of connecting rods 22 are provided, and the rear end of each connecting rod 22 is hinged to the grille bar 21, so that the rear end of each connecting rod 22 is slidably connected to the first slide groove 11, the front end of the lowest connecting rod 22 is hinged to the second slide groove 12, and the front ends of the remaining connecting rods 22 are slidably connected to the second slide groove 12, and the connecting rods 22 are hinged at the head and tail to form a W-shaped foldable connecting rod combination;

[0040] Each end of the top grille bar 21 is hinged to a connecting rod 22, and each end of the remaining grille bars 21 is hinged to two connecting rods 22;

[0041] The pushing member 3 has its two ends respectively connected to the first slide groove 11 and the second slide groove 12 on the same side. In the present technical scheme, a pushing member 3 is provided at the upper and lower ends of each group of the first slide groove 11 and the second slide groove 12. In other technical schemes, one or three pushing members 3 may also be provided in each group. The pushing member 3 is used to change the relative distance between the first slide groove 11 and the second slide groove 12. When the relative distance between the first slide groove 11 and the second slide groove 12 changes, the folding state of the connecting rod combination will change, thereby changing the relative distance between the grille bars 21.

[0042] The method of using this device is as follows:

[0043] When the suspended matter and floating objects in the sewage are large in size, the first chute 11 and the second chute 12 are moved closer to each other by the pusher 3, thereby increasing the relative distance between the grille bars 21; when the suspended matter and floating objects in the sewage are small in size, the first chute 11 and the second chute 12 are moved away from each other by the pusher 3, thereby decreasing the relative distance between the grille bars 21.

[0044] In summary, the sewage treatment grid provided by the utility model has a first slide groove 11 and a second slide groove 12 respectively arranged in parallel on both side walls of the fixed frame 1 in the up-down direction, the two ends of the grid bar 21 are slidably connected to the first slide groove 11, and a pusher 3 and a plurality of connecting rods 22 hinged end to end are arranged between the first slide groove 11 and the second slide groove 12, the rear end of the connecting rod 2 is hinged to the grid bar 21, the front end of the lowest connecting rod 22 is hinged to the second slide groove 12, and the front ends of the remaining connecting rods 22 are slidably connected to the second slide groove 12. When the pusher 3 changes the relative distance between the first slide groove 11 and the second slide groove 12, the folding state of the connecting rod 22 changes, thereby changing the relative distance between the grid bars 21, and the relative distance between the grid bars 21 changes by the same amount.

[0045] During specific use, limiting grooves can be set on the front and rear walls of the fixed frame 1 to allow the second slide groove 12 to move forward and backward relative to the first slide groove 11 to prevent the second slide groove 12 from shaking when its position changes relative to the first slide groove 11.

[0046] In the present technical solution, the pushing member 3 is an electric screw, and its two ends are respectively threadedly connected to the first slide groove 11 and the second slide groove 12, and the threads at the two ends of the electric screw have opposite rotation directions. When the electric screw rotates, it can drive the first slide groove 11 and the second slide groove 12 to move closer to or away from each other. In other technical solutions, the pushing member 3 can also adopt a hydraulic cylinder, etc.

[0047] In another technical solution, the grille assembly 2 further includes:

[0048] like Figure 3 As shown, the first slider 23 is slidably connected with the first slide slot 11, the first slide slot 11 is opened toward the grille bar 21, a first connecting column 231 is provided on the side of the first slider 23 away from the first slide slot 11, both ends of the grille bar 21 are fixedly connected with the first slider 23 through the first connecting column 231, and the rear end of the connecting rod 22 is hinged with the first slider 23 through the first connecting column 231;

[0049] like Figure 4 As shown, the second slider 24 is slidably connected to the second slide groove 12, the opening direction of the second slide groove 12 is parallel to the opening direction of the second slide groove 11, and the second slider 24 is provided with a second connecting column 241 on the side away from the second slide groove 12, and the front end of the remaining connecting rod 22 is hinged to the second slider 24 through the second connecting column 241.

[0050] In another technical solution, a limiter 111 is detachably provided at the upper end of the first chute 11, and the limiter 111 abuts against the upper side of the uppermost first slider 23. After the spacing of the grille bars 21 is determined, the connecting rod 22 can be fixed by the limiter 111 to prevent the spacing of the grille bars 21 from changing during use of the device, thereby affecting sewage treatment.

[0051] In another technical solution, the top plate 13 is detachably provided on the upper end of the fixing frame 1. When the spacing of the grid bars 21 is adjusted, the number of the grid bars 21 and the connecting rods 22 may change accordingly, and the top plate 13 can be removed to adjust the number of the grid bars 21 and the connecting rods 22.

[0052] Normally, the cross section of the grille bars is set to be rectangular to prevent suspended and floating objects from being stuck between the grille bars. However, when the grille is set at an angle, some suspended and floating objects will be trapped between the grille bars, such as Figure 5 In another technical solution, the cross-section of the grille bar 21 is trapezoidal, and the lower bottom of the trapezoid (i.e., the longer bottom side of a set of parallel bottom sides) faces forward, which can prevent suspended matter and floating matter from being retained between the grille bars 21 and affecting the sewage treatment efficiency. The upper bottom is provided with reinforcing ribs 211, which can reduce the size of the grille bar 21 while maintaining a certain rigidity and reducing costs.

[0053] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A sewage treatment screen, characterized in that: include: The fixed frame (1) has two side walls which are parallelly provided with: A first sliding groove (11) fixedly connected to the fixing frame (1); A second chute (12), which is arranged in front of the first chute (11); The grille assembly (2) is arranged inside the fixed frame (1), and comprises: A plurality of grille bars (21) are arranged in parallel, and both ends of the grille bars (21) are respectively slidably connected to the first slide grooves (11); A plurality of connecting rods (22) are provided, the rear end of each connecting rod (22) being hinged to one of the grille bars (21), the front end of the lowest connecting rod (22) being hinged to the second slide groove (12), the front ends of the remaining connecting rods (22) being slidably connected to the second slide groove (12), and the connecting rods (22) being hinged at their ends; Each end of the top grille bar (21) is hinged to a connecting rod (22), and each end of the remaining grille bars (21) is hinged to two connecting rods (22); The pushing member (3) has two ends respectively connected to the first sliding groove (11) and the second sliding groove (12) on the same side, and the pushing member (3) is used to change the relative distance between the first sliding groove (11) and the second sliding groove (12).

2. The sewage treatment grid according to claim 1, characterized in that: The pushing member (3) is an electric screw rod, the two ends of which are respectively threadedly connected to the first slide groove (11) and the second slide groove (12), and the threads at the two ends of the electric screw rod have opposite rotation directions.

3. The sewage treatment grid according to claim 1, characterized in that: The grille assembly (2) further comprises: A first sliding block (23) is slidably connected to the first sliding groove (11), both ends of the grille bar (21) are respectively fixedly connected to the first sliding block (23), and the rear end of the connecting rod (22) is hinged to the first sliding block (23); A second sliding block (24) is slidably connected to the second sliding groove (12), and a front end of the remaining connecting rod (22) is hinged to the second sliding block (24).

4. The sewage treatment grid according to claim 3, characterized in that: A limiting member (111) is detachably provided at the upper end of the first sliding groove (11), and the limiting member (111) abuts against the upper side surface of the uppermost first sliding block (23).

5. The sewage treatment grid according to claim 1, characterized in that: A top plate (13) is detachably provided on the upper end of the fixing frame (1).

6. The sewage treatment grid according to claim 1, characterized in that: The cross section of the grille bar (21) is trapezoidal, the lower base of the trapezoid faces forward, and the upper base is provided with reinforcing ribs (211).

Images