CN221155518U - Manhole structure for shallow sand filter - Google Patents
Manhole structure for shallow sand filter Download PDFInfo
- Publication number
- CN221155518U CN221155518U CN202322879862.3U CN202322879862U CN221155518U CN 221155518 U CN221155518 U CN 221155518U CN 202322879862 U CN202322879862 U CN 202322879862U CN 221155518 U CN221155518 U CN 221155518U
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- CN
- China
- Prior art keywords
- cover plate
- manhole
- manhole body
- sand filter
- sealing head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004576 sand Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a manhole structure for a shallow sand filter, which comprises an upper sealing head; an elliptical manhole body is arranged on the upper sealing head, an elliptical cover plate matched with the manhole body is arranged below the manhole body, and the side surface of the cover plate is a slope surface to form a conical structure with a small upper part and a large lower part; the shape of the inner side surface of the lower end of the manhole body is matched with the side surface of the cover plate; a pressing plate is arranged above the manhole body, and a locking assembly and a positioning assembly are arranged between the pressing plate and the cover plate; the support rotating assembly is further arranged between the cover plate and the inner wall of the upper sealing head, the open area of the elliptical manhole on the upper sealing head is smaller, the thickness of the upper sealing head is not required to be increased because of overlarge open pore size, and part of raw materials can be saved; and the influence on the external space of the upper seal head is small, and other pipe orifices and valves on the upper seal head are convenient to arrange.
Description
Technical Field
The utility model relates to the field of accessories of shallow sand filters, in particular to a manhole structure for a shallow sand filter.
Background
The shallow sand filter is mainly used for filtering circulating water, water supply and wastewater in the industrial field. The inspection manhole of the shallow sand filter is generally circular, and the circular manhole has the following problems: (refer to FIG. 1)
First: most of the round manhole body 1 is positioned outside the upper sealing head, and occupies a lot of external space due to the existence of the cover plate 2 and the flange 3, the diameter of the shallow sand filter device is generally smaller due to the process reason, and the diameter of the round manhole cannot be smaller than the shoulder width (DN 400 minimum) of a common person in order to meet the requirement that personnel enter the interior for maintenance, so that the opening of the round manhole needs to occupy more area (about 19% of the plane area) on the upper sealing head, and the arrangement of other pipe orifices and valves on the upper sealing head can be influenced; the upper end socket is provided with holes, so that the strength of the upper end socket can be weakened, the thickness of the upper end socket needs to be increased, and unnecessary material waste is caused;
Second,: the round manhole has the advantages of large weight, large number of bolts, large workload when overhauling by overhauling staff and more labor hour consumption.
Disclosure of utility model
The utility model aims to provide a manhole structure for a shallow sand filter.
The utility model aims at innovation points that: the open area of the designed elliptical manhole on the upper sealing head is smaller, the thickness of the upper sealing head is not required to be increased because of the oversized open hole, and part of raw materials can be saved; and the influence on the external space of the upper seal head is small, and other pipe orifices and valves on the upper seal head are convenient to arrange.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
A manhole structure for a shallow sand filter comprises an upper end enclosure; an elliptical manhole body is arranged on the upper sealing head, an elliptical cover plate matched with the manhole body is arranged below the manhole body, and the side surface of the cover plate is a slope surface to form a conical structure with a small upper part and a large lower part; the shape of the inner side surface of the lower end of the manhole body is matched with the side surface of the cover plate; a pressing plate is arranged above the manhole body, and a locking assembly and a positioning assembly are arranged between the pressing plate and the cover plate; the pressing plate is of an integrally formed rice-shaped structure, and the positioning assembly comprises a positioning rod and a positioning sleeve matched with the positioning rod in shape; the cross section of the positioning rod is rectangular; the positioning sleeve is welded on the top surface of the cover plate, one end of the positioning rod is welded on the pressing plate, and the free end of the positioning rod extends into the positioning sleeve; and a supporting and rotating assembly is further arranged between the cover plate and the inner wall of the upper seal head.
Further, the support rotating assembly comprises a first hinging seat arranged on the bottom surface of the cover plate, a second hinging seat arranged on the inner wall of the upper sealing head, and a connecting rod connected between the first hinging seat and the second hinging seat.
Further, the locking assembly comprises a stud, a locking nut, a gasket and a bolt seat, wherein the bolt seat is welded and fixed on the top surface of the cover plate.
Further, the minimum size of the manhole body is 400mm by 300mm.
Further, a buffer cushion is arranged between the pressing plate and the top of the manhole body.
Further, the top surface of the cover plate is also provided with a handle.
The beneficial effects of the utility model are as follows:
First: the shape of the manhole body is set to be elliptical, the opening area of the elliptical manhole on the upper sealing head is smaller and is only 66% of the opening area required by the circular manhole, so that the thickness of the upper sealing head is not required to be increased due to overlarge opening size, and part of raw materials can be saved; and the influence on the external space of the upper end socket is small, other pipe orifices and valves on the upper end socket are convenient to arrange, and the overall appearance and feel of the equipment are also very coordinated.
Second,: the cover plate and the lower end of the manhole body adopt a cone-shaped structure, so that the sealing requirement of the shallow sand filter can be met.
Third,: the integrated into one piece's rice font clamp plate utilizes locking component, and whole atress is even between clamp plate and the apron, and the leakproofness is good, uses the bolt few.
Fourth,: the positioning assembly is designed, positioning is convenient during installation, and installation efficiency is improved.
Fifth,: and a buffer cushion is arranged between the pressing plate and the cover plate, so that the shock resistance is good.
Drawings
Fig. 1 is a schematic diagram of a prior art structure.
FIG. 2 is a schematic diagram of the structure of the present utility model.
FIG. 3 is a top view of the platen.
Fig. 4 is a comparison of a circular manhole and an oval manhole.
In the figure: 1 is manhole body, 2 is apron, 3 is flange, 4 is the upper head, 5 is the clamp plate, 6 is locking subassembly, 6.1 is the double-screw bolt, 6.2 is lock nut, 6.3 is the packing ring, 6.4 is the bolt seat, 7 is the locating component, 7.1 is the locating lever, 7.2 is the locating sleeve, 8 is the support rotation subassembly, 8.1 is first articulated seat, 8.2 is the second articulated seat, 8.3 is the connecting rod, 9 is the blotter.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
A manhole structure for a shallow sand filter comprises an upper end enclosure 4; an elliptical manhole body 1 is arranged on the upper sealing head 4, an elliptical cover plate 2 matched with the manhole body 1 is arranged below the manhole body 1, and the side surface of the cover plate 2 is a slope surface to form a conical structure with a small upper part and a large lower part; the shape of the inner side surface of the lower end of the manhole body 1 is matched with the side surface of the cover plate 2; a pressing plate 5 is arranged above the manhole body 1, and a locking component 6 and a positioning component 7 are arranged between the pressing plate 5 and the cover plate 2; the pressing plate 5 is of an integrally formed rice-shaped structure, and the positioning assembly 7 comprises a positioning rod 7.1 and a positioning sleeve 7.2 matched with the positioning rod in shape; the cross section of the positioning rod 7.1 is rectangular; the positioning sleeve 7.2 is welded on the top surface of the cover plate 2, one end of the positioning rod 7.1 is welded on the pressing plate 5, and the free end extends into the positioning sleeve 7.2; and a supporting and rotating assembly 8 is further arranged between the cover plate 5 and the inner wall of the upper sealing head 4.
Further, the support rotating assembly 8 includes a first hinge seat 8.1 disposed on the bottom surface of the cover plate 2, a second hinge seat 8.2 disposed on the inner wall of the upper seal head 4, and a connecting rod 8.3 connected between the first hinge seat 8.1 and the second hinge seat 8.2.
Further, the locking assembly 6 comprises a stud 6.1, a locking nut 6.2, a washer 6.3 and a bolt seat 6.4, and the bolt seat 6.4 is welded and fixed on the top surface of the cover plate 2.
Further, the minimum size of the manhole body 1 is 400mm×300mm.
Further, a cushion pad 9 is also arranged between the pressing plate 5 and the top of the manhole body 1.
Further, a handle (not shown) is further provided on the top surface of the cover plate 2.
As can be seen from fig. 4, compared with the round manhole body 1, the oval manhole body 1 has smaller open area, which is only 66% of the open area required by the round manhole body (taking DN400 and 400mm as 300 mm) as an example, so that the thickness of the upper seal head 4 does not need to be increased for oversized open hole, and part of raw materials can be saved; and the influence on the external space of the upper seal head 4 is small, other pipe orifices and valves on the upper seal head are convenient to arrange, and the overall appearance and feel of the equipment are also very coordinated.
The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (6)
1. A manhole structure for a shallow sand filter comprises an upper end socket (4); the method is characterized in that: an elliptical manhole body (1) is arranged on the upper sealing head (4), an elliptical cover plate (2) matched with the manhole body (1) is arranged below the manhole body, and the side surface of the cover plate (2) is a slope surface to form a conical structure with a small upper part and a large lower part; the shape of the inner side surface of the lower end of the manhole body (1) is matched with the side surface of the cover plate (2); a pressing plate (5) is arranged above the manhole body (1), and a locking assembly (6) and a positioning assembly (7) are arranged between the pressing plate (5) and the cover plate (2); the pressing plate (5) is of an integrally formed rice-shaped structure, and the positioning assembly (7) comprises a positioning rod (7.1) and a positioning sleeve (7.2) with the shape matched with the positioning rod; the cross section of the positioning rod (7.1) is rectangular; the positioning sleeve (7.2) is welded on the top surface of the cover plate (2), one end of the positioning rod (7.1) is welded on the pressing plate (5), and the free end of the positioning rod extends into the positioning sleeve (7.2); and a supporting and rotating assembly (8) is further arranged between the cover plate (2) and the inner wall of the upper sealing head (4).
2. A manhole structure for a shallow sand filter according to claim 1, wherein: the support rotating assembly (8) comprises a first hinging seat (8.1) arranged on the bottom surface of the cover plate (2), a second hinging seat (8.2) arranged on the inner wall of the upper sealing head (4), and a connecting rod (8.3) connected between the first hinging seat (8.1) and the second hinging seat (8.2).
3. A manhole structure for a shallow sand filter according to claim 1, wherein: the locking assembly (6) comprises a stud (6.1), a locking nut (6.2), a gasket (6.3) and a bolt seat (6.4), and the bolt seat (6.4) is welded and fixed on the top surface of the cover plate (2).
4. A manhole structure for a shallow sand filter according to claim 1, wherein: the minimum size of the manhole body (1) is 400 mm-300 mm.
5. A manhole structure for a shallow sand filter according to claim 1, wherein: and a buffer cushion (9) is further arranged between the pressing plate (5) and the top of the manhole body (1).
6. A manhole structure for a shallow sand filter according to claim 1, wherein: the top surface of the cover plate (2) is also provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322879862.3U CN221155518U (en) | 2023-10-26 | 2023-10-26 | Manhole structure for shallow sand filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322879862.3U CN221155518U (en) | 2023-10-26 | 2023-10-26 | Manhole structure for shallow sand filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221155518U true CN221155518U (en) | 2024-06-18 |
Family
ID=91436011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322879862.3U Active CN221155518U (en) | 2023-10-26 | 2023-10-26 | Manhole structure for shallow sand filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221155518U (en) |
-
2023
- 2023-10-26 CN CN202322879862.3U patent/CN221155518U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |