Inner inflow net plate and grillage machine

Abstract

The utility model provides an internal inflow mesh plate and grillage machine, the internal inflow mesh plate comprises a filter mechanism and a sealing mechanism, the filter mechanism comprises a porous panel and a fixed frame, the porous panel comprises a plurality of filter hole units which are connected in sequence, each filter hole unit comprises a first bending belt and a second bending belt which are connected with each other, and the first bending belt and the second bending belt are connected with each other. The sealing mechanism comprises a first connecting unit and a second connecting unit, one side wall of the fixing frame is connected with the first connecting unit, and the side, back on to the first connecting unit, of the fixing frame is connected with the second connecting unit. By arranging the porous panel formed by combining the bent belts, formed holes have the advantages of small hole diameter and small hole pitch, meanwhile, the porous panel is high in structural strength and good in cutting performance, and by arranging the sealing mechanism, it can be guaranteed that the combination of the inner inflow net plates has good sealing performance, and the sewage filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an inner inlet mesh plate and a grille machine. Background Art

[0002] With the development of sewage treatment technology, internal flow screen machines are increasingly being used in the field of sewage treatment. Internal flow screen machines have the advantages of high treatment efficiency and good treatment effect.

[0003] The key component used to intercept dirt in the internal flow screen machine is the internal flow mesh plate, which is equipped with a porous mesh plate to effectively remove fibers, hair and other fine impurities in the water source. The material of the mesh plate is usually divided into metal or non-metal, and the pore size of the mesh plate affects the filtration efficiency.

[0004] Traditional metal mesh plates are processed by punching, and the process requires that the hole diameter of the punching must be larger than the plate thickness. Therefore, when the hole diameter is small, the plate thickness is insufficient, the mesh plate structure strength is not high, and it is difficult to take into account both the small hole diameter and high strength of the metal mesh plate. In non-metallic mesh plates, the hole diameter is small but the hole spacing is large, resulting in low flow rate and is not conducive to backwashing, affecting the slag cleaning efficiency of the screen machine. In addition, non-metallic materials do not have cutting properties and are easy to react with organic pollutants, resulting in hole blockage and slag hanging problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an internal flow mesh plate and a grille machine, aiming to solve the problem that the internal flow mesh plate in the prior art cannot take into account small aperture, high flow rate and structural strength, and is prone to hole clogging and slag hanging.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An internal inlet flow mesh plate comprises a filtering mechanism and a sealing mechanism, wherein the filtering mechanism comprises a porous panel and a fixed frame, the porous panel comprises a plurality of filter hole units connected in sequence, the filter hole units comprise a first bending band and a second bending band connected to each other, the first bending band is connected to the second bending band in an adjacent filter hole unit on the side facing away from the second bending band, the porous panel is connected to the fixed frame, the sealing mechanism comprises a first connecting unit and a second connecting unit, a side wall of the fixed frame is connected to the first connecting unit, a side wall of the fixed frame facing away from the first connecting unit is connected to the second connecting unit, and the second connecting unit comprises a rotating shaft, and the rotating shaft is located at an end of the second connecting unit facing away from the fixed frame.

[0008] Compared with the prior art, the beneficial effect of the utility model lies in that: by setting the porous panel composed of thin bending strips, the holes formed by the mutual connection of the first bending strip and the second bending strip have the advantages of small pore size and small hole spacing, and have a higher flow rate and good filtering effect. At the same time, the porous panel has a certain thickness, high structural strength, and good cutting property. By setting the first connecting unit and the second connecting unit, it can be ensured that the combination of the inner flow mesh plate in the inner flow grille machine has good sealing, thereby improving the filtering effect on sewage.

[0009] Furthermore, the fixing frame includes a plurality of rod bodies and a plurality of connecting pieces which are arranged relatively to each other, the adjacent rod bodies are connected by the connecting pieces, and the rod bodies and the connecting pieces are both connected to the porous panel.

[0010] Furthermore, the connecting sheet is provided with a plurality of first connecting holes, and the first connecting holes penetrate through the connecting sheet.

[0011] Furthermore, one side of the first connecting unit is connected to the rod body, and the other side of the first connecting unit is bent to form an arc portion adapted to the rotating shaft.

[0012] Furthermore, the second connection unit further includes a first transition portion and a second transition portion, the first transition portion is connected to the rotating shaft, the side of the first transition portion facing away from the rotating shaft is connected to the second transition portion, and the second transition portion is connected to the rod body.

[0013] Furthermore, the lengths of the first connection unit and the rotating shaft are both equal to the length of a side of the fixing frame connected to the first connection unit, and the lengths of the first transition portion and the second transition portion are both equal to the length of the rotating shaft.

[0014] Furthermore, both ends of the rotating shaft are connected to connecting pillars.

[0015] Furthermore, the sealing mechanism also includes a plurality of baffles, the two opposite side walls of the fixed frame are connected to the baffles, one end of the baffle is provided with a baffle arc portion, and the end of the baffle facing away from the baffle arc portion is concave to form a baffle recess adapted to the baffle arc portion.

[0016] Furthermore, the blocking piece is provided with a second connection hole and a column hole, the second connection hole corresponds to the first connection hole in position, the second connection hole and the column hole both penetrate the blocking piece, and the connection column passes through the column hole.

[0017] An inner flow grille machine comprises the inner flow grille plate as described in the above technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the structure of the inner inlet screen in the embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of a partially disassembled structure of an inner inlet screen plate in an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the first connecting unit and the second connecting unit in the inner inlet mesh plate in the embodiment of the utility model;

[0021] Figure 4 Another perspective structural diagram of the inner inlet screen in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the combined structure of the first bending belt and the second bending belt in the inner inlet mesh plate in the embodiment of the utility model;

[0023] Description of main component symbols:

[0024] Filter mechanism 100 Rod body 110 First connection unit 120 Second connection unit 130 Connecting column 131 First transition section 132 Second transition section 133 Connector 140 First connecting hole 141 Perforated Panel 150 First bending belt 151 Second bending belt 152 Baffle 200 post hole 201 Second connection hole 202 Baffle arc 210 baffle recess 220

[0025] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] See also Figures 1 to 5The inner inlet mesh plate in the embodiment of the utility model includes a filter mechanism 100 and a sealing mechanism. The filter mechanism 100 includes a porous panel and a fixing frame. The porous panel includes a plurality of filter hole units connected in sequence. The filter hole unit includes a first bending band 151 and a second bending band 152 connected to each other. The side of the first bending band 151 facing away from the second bending band 152 is connected to the second bending band 152 in the adjacent filter hole unit. Preferably, the first bending band 151 and the second bending band 152 are both made of metal. The first bending band 151 and the second bending band 152 are symmetrical, and the hole formed by the splicing of the first bending band 151 and the second bending band 152 is a regular hexagonal metal hole. Please refer to Figure 5 The first bending band 151 and the second bending band 152 have several fitting surfaces when assembled, and the fitting surfaces are processed by welding process to form the filter hole unit. The first bending band 151 and the second bending band 152 are both made of 0.1mm stainless steel. In the filter hole unit processed by metal thin strips, the distance between holes is small. Specifically, for a fine grid with a filtering aperture of 1mm, the hole spacing (the distance between the centers of two holes) of this scheme can be as low as 1.2mm, while the hole spacing of traditional metal mesh plates is 2mm, and the hole spacing of non-metal mesh plates is 2.5mm. The aperture of the porous panel can be as low as 0.7mm. The minimum aperture of the existing internal inlet grille products is only 1mm. It can be understood that the ineffective area of ​​the internal inlet mesh is small, and the effective flow area ratio can reach 83%. The effective flow area ratio of the conventional metal mesh plate using the punching process is 24%, while the effective flow area of ​​the non-metal mesh plate is 13%. The internal inlet mesh plate helps to reduce the volume of the equipment and save energy. And because the porous panel of the internal inlet mesh plate is made of stainless steel material three-dimensional splicing, the thickness of the porous panel is freely controllable and easy to adjust. It can ensure a certain thickness under the premise of a small aperture and ensure the high strength of the mesh plate, making the internal inlet grille sturdy and durable, and can avoid the disadvantages of reduced backwashing efficiency caused by excessive thickness of the orifice plate. In addition, the 0.1mm stainless steel strip has a sharp cross-section and has cutting properties. It is not easy to block the holes and hang slag. Under the backwashing water system of the internal inlet grille machine, the slag can be removed smoothly and the backwashing water volume can be saved.

[0030] The porous panel is connected to the fixed frame, and the fixed frame includes a plurality of rod bodies 110 and a plurality of connecting pieces 140 arranged relatively to each other. Adjacent rod bodies 110 are connected by the connecting pieces 140, and the connecting pieces 140 and the rod bodies 110 are both connected to the porous panel. The connecting piece 140 is provided with a plurality of first connecting holes 141, and the first connecting holes 141 penetrate the connecting piece 140. Preferably, the cross section of the rod body 110 is rectangular to fit the porous panel, and two first connecting holes 141 are provided on each of the connecting pieces 140, and bolts are provided in the first connecting holes 141 to connect the sealing mechanism. It can be understood that the fixed frame cooperates with the porous panel with higher strength, so that the overall shear tensile strength of the inner inlet mesh plate is high, which can improve the operating stability of the inner inlet grille machine, so that it can still operate normally when the liquid level difference between the front and back of the grille is large.

[0031] The sealing mechanism includes a plurality of baffles 200, a first connecting unit 120 and a second connecting unit 130. The two opposite side walls of the fixed frame are connected to the baffles 200. A baffle arc portion 210 is arranged at one end of the baffle 200. The end of the baffle 200 facing away from the baffle arc portion 210 is concave to form a baffle recess 220 adapted to the baffle arc portion 210. A side wall of the fixed frame is connected to the first connecting unit 120. A side wall of the fixed frame facing away from the first connecting unit 120 is connected to the second connecting unit 130. The second connecting unit 130 includes a rotating shaft. The lengths of the first connecting unit 120 and the rotating shaft are both equal to the length of a side edge of the fixed frame connected to the first connecting unit 120. The rotating shaft is located at the end of the second connecting unit 130 facing away from the fixed frame. The rod body 110 is connected, and the other side of the first connecting unit 120 is bent to form an arc portion adapted to the rotating shaft. The second connecting unit 130 also includes a first transition portion 132 and a second transition portion 133. The first transition portion 132 is connected to the rotating shaft, and the side of the first transition portion 132 facing away from the rotating shaft is connected to the second transition portion 133, and the second transition portion 133 is connected to the rod body 110. The lengths of the first transition portion 132 and the second transition portion 133 are both equal to the length of the rotating shaft. Both ends of the rotating shaft are connected to the connecting column 131, and the blocking piece 200 is provided with a second connecting hole 202 and a column hole 201. The second connecting hole 202 corresponds to the position of the first connecting hole 141. The second connecting hole 202 and the column hole 201 both pass through the blocking piece 200, and the connecting column 131 passes through the column hole 201. Preferably, the baffle 200 is made of high-strength plastic, one side of the baffle arc portion 210 is in an arc shape, the connecting column 131 is sleeved in the column hole 201, and the connecting column 131 is used to connect an external transmission structure, and the transmission structure can further press the baffle 200 when connected to the connecting column 131. It can be understood that the arrangement of the connecting column 131 and the column hole 201 can improve the sealing and stability of the baffle 200. When several of the inner inlet mesh plates are assembled together, the connection between adjacent baffles 200 is more stable, and the baffle arc portion 210 can always remain in the baffle recess 220 of the adjacent baffle 200 for rotation and sliding. Compared with metal or rubber materials, high-strength plastic slides more smoothly, is easy to maintain, has low noise, and is not prone to aging and cracking.

[0032] Preferably, the second connecting hole 202 is connected to the first connecting hole 141 by bolts to fix the baffle 200 on the outer wall of the connecting piece 141, the first transition portion 132 is perpendicular to the second transition portion 133, and the thickness of the first transition portion 132 is less than the diameter of the rotating shaft, that is, there is a gap between the first transition portion 132 and the rod body 110 of the adjacent inner inlet mesh plate, so that the connection between the second connecting unit 130 and the first connecting unit 120 is more flexible, and the first transition portion 132 is not easy to collide or squeeze with the rod body 110 under the drive of the external transmission structure, thereby causing wear. Furthermore, a gasket is provided on the side of the baffle 200 facing away from the fixed frame to transitionally connect the external transmission mechanism and further press the baffle 200, while protecting the baffle 200 and preventing the chain of the external transmission mechanism from wearing the baffle 20 0, improve the sealing performance. It can be understood that the side of the arc portion of the inner flow inlet mesh plate close to the first connecting unit 120 is the water inlet side, and the other side of the inner flow inlet mesh plate is the water outlet side. When several inner flow inlet mesh plates are assembled together, the first connecting unit 120 connects the rotating shaft in the adjacent inner flow inlet mesh plates. For the water inlet side, the first connecting unit 120 and the second connecting unit 130 are sealed, and the connection structure is relatively simple and not easy to hang slag. Since the length of the first connecting unit 120, the rotating shaft, the first transition part 132 and the second transition part 133 is the length of a single inner flow inlet mesh plate, they are flush after connection and can be tightly attached to the baffle 200. Therefore, the sealing mechanism has good sealing performance, which is beneficial to improving the effect of filtering sewage. Even when the external transmission system drives several inner flow inlet mesh plates connected in sequence to move, slag leakage can be avoided.

[0033] The utility model also provides an inner flow screen machine, comprising the inner flow screen plate as described in the above technical solution. Preferably, a plurality of the inner flow screen plates are connected in sequence and connected to form a ring so as to rotate in the inner flow screen machine. Specifically, the first connection unit 120 is used to connect the second connection unit 130 in the adjacent inner flow screen plates. Further, the first connection unit 120 is used to connect the rotating shaft in the adjacent inner flow screen plates. The adjacent inner flow screen plates are rotatably connected. The inner flow screen machine uses gears and chains to drive a plurality of the inner flow screen plates to move, and the sewage can be continuously filtered and treated.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An internal inlet screen, characterized in that: It includes a filtering mechanism and a sealing mechanism, the filtering mechanism includes a porous panel and a fixed frame, the porous panel includes a plurality of filter hole units connected in sequence, the filter hole unit includes a first bending band and a second bending band connected to each other, the first bending band is connected to the second bending band in the adjacent filter hole unit on the side facing away from the second bending band, the porous panel is connected to the fixed frame, the sealing mechanism includes a first connecting unit and a second connecting unit, a side wall of the fixed frame is connected to the first connecting unit, a side wall of the fixed frame facing away from the first connecting unit is connected to the second connecting unit, and the second connecting unit includes a rotating shaft, and the rotating shaft is located at the end of the second connecting unit facing away from the fixed frame.

2. The inner flow screen according to claim 1, characterized in that: The fixing frame comprises a plurality of rod bodies and a plurality of connecting pieces which are arranged opposite to each other, the adjacent rod bodies are connected by the connecting pieces, and the rod bodies and the connecting pieces are both connected to the porous panel.

3. The inner flow screen according to claim 2, characterized in that: The connecting sheet is provided with a plurality of first connecting holes, and the first connecting holes penetrate through the connecting sheet.

4. The inner flow screen according to claim 2, characterized in that: One side of the first connecting unit is connected to the rod body, and the other side of the first connecting unit is bent to form an arc portion adapted to the rotating shaft.

5. The inner flow screen according to claim 2, characterized in that: The second connection unit further includes a first transition portion and a second transition portion, the first transition portion is connected to the rotating shaft, a side of the first transition portion facing away from the rotating shaft is connected to the second transition portion, and the second transition portion is connected to the rod body.

6. The inner flow screen according to claim 5, characterized in that: The lengths of the first connection unit and the rotating shaft are both equal to the length of a side of the fixing frame connected to the first connection unit, and the lengths of the first transition portion and the second transition portion are both equal to the length of the rotating shaft.

7. The inner flow screen according to claim 3, characterized in that: Both ends of the rotating shaft are connected to connecting pillars.

8. The inner flow screen according to claim 7, characterized in that: The sealing mechanism also includes a plurality of baffles, both opposite side walls of the fixing frame are connected to the baffles, one end of the baffle is provided with a baffle arc portion, and the end of the baffle facing away from the baffle arc portion is concave to form a baffle recess adapted to the baffle arc portion.

9. The inner flow screen according to claim 8, characterized in that: The blocking piece is provided with a second connection hole and a column hole, the second connection hole corresponds to the first connection hole in position, the second connection hole and the column hole both penetrate the blocking piece, and the connection column passes through the column hole.

10. An internal inlet grille machine, characterized in that: It comprises the inner flow mesh plate as described in any one of claims 1 to 9.

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