Anti-sedimentation reinforced concrete and nodular cast iron integrated well lid

Abstract

The utility model discloses an anti-sedimentation reinforced concrete nodular cast iron integrated well lid which comprises a concrete anti-sedimentation plate, a well seat, a well lid plate, a replacement filter screen and a well lid lock. According to the anti-settling reinforced concrete and nodular cast iron integrated well lid, the lifting ring is used for supporting the pressing turned-over edge, asphalt integrated with the road surface is laid on the upper side face of the concrete anti-settling plate, the pressing turned-over edge presses and is embedded into the asphalt, the upper side face of the well lid plate is flush with the asphalt road surface, the possibility that the well base sinks is reduced, and the anti-settling effect of the well lid is improved; the manhole cover plate is locked by the manhole cover lock, so that the anti-theft performance of the manhole cover is improved; the replacement filter screen can be replaced when the well lid plate is locked, the well lid plate can be replaced without unlocking and turning over the well lid plate, the labor intensity of regularly replacing the filter screen is reduced, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a well lid, especially a sinking-prevention reinforced concrete nodular cast iron integrated well lid. BACKGROUND

[0002] With the daily progress of urban roads, the inspection well in the underground pipe network has become an important part of the management details of the urban underground pipe network, and the traditional well lid installation mode in the modular masonry and the concrete cast-in-place inspection well has obvious drawbacks. The uneven settlement of the well body and the surrounding road surface forms a "road belly" phenomenon, which has seriously affected traffic safety. Frequent replacement and maintenance consume manpower and financial resources, increase maintenance costs; the sinking of the well lid brings safety hazards to passing pedestrians and vehicles, and affects the appearance of the road surface; in a long period of use, the drainage capacity of the well lid is weakened usually because of the blockage of the sewage hole or filter screen by foreign matter, so the filter screen needs to be cleaned regularly, but the filter screen needs to be opened when cleaning, which is not only time-consuming and laborious, but also has a certain risk. UTILITY MODEL CONTENT

[0003] The utility model discloses a sinking-prevention reinforced concrete nodular cast iron integrated well lid, which can prevent sinking and replace the filter screen without opening the well lid plate.

[0004] Technical scheme: the sinking-prevention reinforced concrete nodular cast iron integrated well lid provided by the utility model comprises a concrete sinking-prevention plate, a well seat, a well lid plate, a replacement filter screen and a well lid lock; the lower end of the well seat is inserted into the center of the concrete sinking-prevention plate; a pressing flange is arranged at the upper side edge of the well seat; a lifting ring for supporting the pressing flange is arranged on the upper side of the concrete sinking-prevention plate; the well lid plate is hingedly installed at the upper side opening of the well seat and is locked on the well seat through the well lid lock; the replacement filter screen is detachably installed on the lower side of the well lid plate and is used for filtering sewage; when the well lid plate is locked on the well seat, the replacement filter screen is detachable.

[0005] Further, a plurality of reinforcing steels are arranged in the concrete sinking-prevention plate.

[0006] Further, the length of the concrete sinking-prevention plate is 1800-2200 mm, the width is 1800-2200 mm, and the thickness is 200-220 mm.

[0007] Further, the spacing between the upper side of the concrete sinking-prevention plate and the upper side of the well seat is 120-140 mm.

[0008] Further, the well lid lock comprises a lock rod and a locking spring; a supporting ring for supporting the well lid plate is arranged in the well seat; a lock buckle circular groove is arranged on the well lid plate; a lock head vertically sliding along the lock buckle circular groove is fixed on the lock rod; the locking spring is elastically supported between the lock head and the groove bottom of the lock buckle circular groove; the lower end of the lock rod extends into the well seat; a lock buckle notch is arranged on the lower side of the supporting ring; a lock block for buckling on the lock buckle notch is fixed on the lower end of the lock rod.

[0009] Further, a rubber ring is arranged on the upper side of the supporting ring.

[0010] Further, the unlocking rod for pressing and driving the rotation of the lock head is further included.

[0011] Further, the replacement filter screen comprises two flexible positioning strips and two filter screen pockets; two long sewage holes are arranged in parallel on the well lid plate; two limiting guide plates are fixed in parallel on the lower side of the well lid plate; the two flexible positioning strips are detachably installed on the two limiting guide plates; the two filter screen pockets are fixed on the two flexible positioning strips and are respectively used for filtering the sewage falling at the two long sewage holes.

[0012] Further, a plurality of lifting rings are preassembled on the concrete anti-settling plate.

[0013] Compared with the prior art, the utility model has the advantages that the pressing flange is supported by the lifting ring, the asphalt integrated with the road surface is laid on the upper side of the concrete anti-settling plate, the pressing flange is pressed and embedded in the asphalt, the upper side of the well lid plate is flush with the asphalt road surface, the possibility of the well seat sinking is reduced, and the anti-settling effect of the well lid is improved; the well lid plate is locked by the well lid lock, and the anti-theft performance of the well lid is improved; the replacement filter screen can be replaced when the well lid plate is locked, and the replacement filter screen can be replaced without unlocking and turning over the well lid plate, the labor intensity of periodically replacing the replacement filter screen is reduced, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a top view of the utility model;

[0015] Figure 2 It is a sectional view B-B of the utility model;

[0016] Figure 3 It is a sectional view A-A of the utility model;

[0017] Figure 4 It is a local enlarged view of the sectional view A-A of the utility model;

[0018] Figure 5 It is a component view of the replacement filter screen of the utility model;

[0019] Figure 6 It is a component view of the unlocking rod of the utility model;

[0020] In the diagram: 1. Concrete anti-settlement slab; 2. Reinforcing steel bar; 3. Ring steel bar; 4. Lifting ring; 5. Pressing flange; 6. Manhole base; 7. Manhole cover; 9. Long sewage hole; 10. Rubber ring; 11. Support ring; 12. Reinforcing rib; 13. Edge retaining strip; 14. Filter mesh bag; 15. Positioning pin; 16. Positioning hole; 17. Flexible positioning strip; 18. Support block; 19. Limiting guide plate; 20. End baffle; 21. Locking groove; 22. Limiting ring; 23. Lock head; 24. Unlocking square hole; 25. Locking rod; 26. Locking block; 27. Locking slot; 28. Locking spring; 29. ​​Unlocking rod; 30. Unlocking square block; 31. Handle; 32. Lifting ring. Detailed Implementation

[0021] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example 1:

[0025] like Figures 1-6As shown, the present invention provides an integrated reinforced concrete ductile iron manhole cover for preventing settlement, comprising: a concrete anti-settlement plate 1, a manhole base 6, a manhole cover plate 7, a replacement filter screen, and a manhole cover lock; the concrete anti-settlement plate 1 is installed on the road surface; the lower end of the manhole base 6 is inserted into one side of the concrete anti-settlement plate 1 for connection with the manhole opening; a pressing flange 5 is integrally and horizontally provided at the upper edge of the manhole base 6; a lifting ring 4 for supporting the pressing flange 5 is integrally provided on the upper side of the concrete anti-settlement plate 1; the manhole cover plate 7 is hinged to the upper opening of the manhole base 6 and locked to the upper opening of the manhole base 6 by the manhole cover lock; the replacement filter screen is detachably installed on the lower side of the manhole cover plate 7 for filtering sewage; the replacement filter screen is detachable when the manhole cover plate 7 is locked on the manhole base 6.

[0026] The lifting ring 4 supports the pressing flange 5. Asphalt, which is integrated with the road surface, is laid on the upper side of the concrete anti-settlement plate 1. The pressing flange 5 is pressed and embedded in the asphalt, so that the upper side of the manhole cover 7 is flush with the asphalt road surface, reducing the possibility of the manhole seat 6 sinking and improving the anti-settlement effect of the manhole cover. The manhole cover 7 is locked with a manhole cover lock to improve the anti-theft performance of the manhole cover. The replacement filter can be replaced when the manhole cover 7 is locked, without unlocking and flipping the manhole cover 7, reducing the labor intensity of regularly replacing the filter and improving safety.

[0027] Furthermore, four layers of reinforcing steel bars 2 are intersected within the concrete anti-settlement slab 1; the upper two layers of reinforcing steel bars 2 constitute the top protective layer; the lower two layers of reinforcing steel bars 2 constitute the bottom protective layer; the thickness of both the top and bottom protective layers is 50mm; the spacing between two adjacent reinforcing steel bars 2 in each layer is 150mm; the spacing between the top and bottom protective layers is 100mm; and multiple annular steel bars 3 are provided within the raised ring 4. The concrete anti-settlement slab 1 and the raised ring 4 are cast using C30 concrete; the reinforcing steel bars 2 and the annular steel bars 3 effectively improve the structural strength of the concrete anti-settlement slab 1 and the raised ring 4.

[0028] Furthermore, the concrete anti-settlement slab 1 has a length of 1800-2200mm, preferably 1800mm, a width of 1800-2200mm, preferably 1800mm, and a thickness of 200-220mm, preferably 200mm.

[0029] Furthermore, the distance between the upper side of the concrete anti-settlement plate 1 and the upper side of the well base 6 is 120mm-140mm, with a preferred distance of 120mm; the height of the well base 6 is 170mm.

[0030] Furthermore, the manhole cover lock includes a locking rod 25 and a locking spring 28; a support ring 11 is integrally provided on the upper side of the inner wall of the manhole base 6; multiple reinforcing ribs 12 are provided at intervals between the support ring and the manhole base 6; the support ring 11 is used to support the circumferential edge of the lower side of the manhole cover plate 7; a locking groove 21 is provided at the edge of the upper side of the manhole cover plate 7; the locking rod 25 slides through the bottom of the locking groove 21 in the middle; a lock head 23 is provided on the upper end of the locking rod 25 and slides vertically along the locking groove 21; a limiting ring 22 with an inner diameter smaller than the diameter of the lock head is fixed on the upper end of the inner wall of the locking groove 21; the locking spring 28 is sleeved on the locking rod 25 and elastically supported between the lock head 23 and the bottom of the locking groove 21; a locking block 26 is horizontally fixed on the lower end of the locking rod 25; a locking slot 27 for the locking block 26 to latch is provided on the lower side of the support ring 11.

[0031] The locking spring 28 drives the lock head 23 to move upward, so that the locking block 26 on the locking rod 25 is engaged in the locking groove 27, thereby locking the manhole cover 7. The locking block 26 will not slip off the locking groove 27 when the locking rod 25 rotates and shakes. The limiting ring 22 is used to prevent the lock head from popping out of the locking groove 21.

[0032] Furthermore, a rubber ring 10 is provided on the upper side of the support ring 11. The rubber ring 10 is used to reduce the noise generated by the impact between the manhole cover 7 and the support ring 11 when a vehicle runs over it.

[0033] Furthermore, it also includes an unlocking rod 29; the diameter of the unlocking rod 29 is smaller than the inner diameter of the limiting ring 22; an unlocking square hole 24 is provided on the upper end of the lock head 23; an unlocking block 30 for insertion into the unlocking square hole 24 is provided on one end of the unlocking rod 29; and a handle 31 is installed on the other end of the unlocking rod 29.

[0034] The unlocking lever 29 can be used to lock or unlock the manhole cover lock. Insert the unlocking block 30 into the unlocking hole 24 and press down the unlocking lever 29 to make the locking block 26 vertically disengage from the locking slot 27. Then rotate the unlocking lever 29 to make the locking block 26 move away from below the support ring 11. At this time, the manhole cover 7 can be opened. When it is necessary to lock the manhole cover 7, insert the unlocking block 30 into the unlocking hole 24 and press down the unlocking lever 29. Rotate the unlocking lever 29 to make the locking block 26 move below the support ring 11. Hold the handle 31 loosely and rotate the unlocking lever 29 slightly. When you feel the handle 31 jump slightly upward, it means that the locking block 26 has been successfully locked into the locking slot 27.

[0035] Furthermore, the replacement filter screen includes two flexible positioning strips 17 and two filter screen pockets 14; two elongated sewage holes 9 are longitudinally arranged on the upper side of the manhole cover plate 7; two limiting guide plates 19 are laterally fixed on the lower side of the manhole cover plate 7; the opposite sides of the two limiting guide plates 19 are flush with the front and rear side walls of the elongated sewage holes 9, and the lateral length of the limiting guide plates 19 is greater than the distance between the far side walls of the two elongated sewage holes 9; the lower sides of the two limiting guide plates 19 are bent horizontally to form horizontal plates; edge baffles 13 are provided on the opposite side edges of the two horizontal plates; end baffles 20 are fixed at both ends of the two limiting guide plates 19; on the lower side of the flexible positioning strips 17 Multiple support blocks 18 are fixed at intervals along the length direction, and the distance between the upper edge of the edge baffle 13 and the lower side of the manhole cover 7 is less than the thickness of the support block 18; two filter bags 14 are fixed on two flexible positioning strips 17, and the adjacent side edges of the two filter bags 14 are connected and fixed; the support blocks 18 on the two flexible positioning strips 17 are placed on two horizontal plates; a positioning hole 16 is provided on the flexible positioning strip 17 at a position corresponding vertically to the long sewage hole 9; a locking hole is provided on the parallel plate at a position corresponding vertically to the long sewage hole 9; a positioning pin 15 with its end penetrating through the corresponding locking hole is inserted into each positioning hole 16; the upper diameter of the positioning pin 15 is larger than the lower diameter.

[0036] The flexible positioning strip 17 and the support block 18 work together to allow the edge of the replacement filter screen to bend to a certain extent and provide support, so that it can be inserted into the horizontal plate through the elongated sewage hole 9 during replacement without opening the manhole cover 7. The installation positions of the two limiting guide plates 19 ensure that all sewage falling from the elongated sewage hole 9 is filtered by the filter net 14, and the filter net 14 hangs down at the bottom to wrap around debris when the replacement filter screen is pulled out, preventing debris from falling into the manhole. The edge baffle 13 and the end baffle 20 limit the flexible positioning strip 17 to prevent it from coming loose. The positioning pin 15... The flexible positioning strip 17 is used for positioning to ensure the filtration effect of the replacement filter. When replacing the filter, the claw hammer is inserted through the elongated sewage hole 9 and the positioning pin 15 is pulled out. Then, the replacement filter is moved slightly to one side so that the edge of the replacement filter is aligned with the elongated sewage hole 9 and hooked out from the elongated sewage hole 9. One edge of the new replacement filter is inserted into the elongated sewage hole 9 so that the new replacement filter slides into the elongated sewage hole 9 as a whole. The flexible positioning strips 17 on both sides and the support block 18 are supported on the two parallel plates respectively. The position of the replacement filter is adjusted, and the positioning pin 15 is inserted into the positioning hole 16, with the lower end of the positioning pin 15 passing through the corresponding locking hole.

[0037] Furthermore, three lifting rings 32 are pre-installed on the upper side of the concrete anti-settlement slab 1. The lifting rings 32 facilitate the overall lifting and lowering adjustment of the manhole cover.

[0038] In the anti-settlement reinforced concrete ductile iron integrated manhole cover provided by this utility model, both the manhole base 6 and the manhole cover plate 7 are made of ductile iron; the reinforcing steel bars 2 and the ring steel bars 3 are both made of... Rebar.

[0039] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A type of anti-settlement reinforced concrete ductile iron integrated manhole cover, characterized in that: The system includes a concrete anti-settlement plate (1), a manhole base (6), a manhole cover (7), a replacement filter screen, and a manhole cover lock. The lower end of the manhole base (6) is inserted into the center of the concrete anti-settlement plate (1). A pressing flange (5) is provided on the upper edge of the manhole base (6). A lifting ring (4) for supporting the pressing flange (5) is provided on the upper side of the concrete anti-settlement plate (1). The manhole cover (7) is hinged to the upper opening of the manhole base (6) and locked to the manhole base (6) by the manhole cover lock. The replacement filter screen is detachably installed on the lower side of the manhole cover (7) for filtering sewage. The replacement filter screen is detachable when the manhole cover (7) is locked to the manhole base (6).

2. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: Several reinforcing steel bars (2) are intersected inside the concrete anti-settlement slab (1).

3. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: The concrete anti-settlement slab (1) has a length of 1800-2200mm, a width of 1800-2200mm, and a thickness of 200-220mm.

4. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: The distance between the upper side of the concrete anti-settlement plate (1) and the upper side of the well base (6) is 120mm-140mm.

5. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: The manhole cover lock includes a locking rod (25) and a locking spring (28); a support ring (11) for supporting the manhole cover plate (7) is provided in the manhole base (6); a locking groove (21) is provided on the manhole cover plate (7); a lock head (23) that slides vertically along the locking groove (21) is fixed on the locking rod (25); the locking spring (28) is elastically supported between the lock head (23) and the bottom of the locking groove (21); the lower end of the locking rod (25) extends into the manhole base (6); a locking slot (27) is provided on the lower side of the support ring (11); a locking block (26) for locking onto the locking slot (27) is fixed on the lower end of the locking rod (25).

6. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 5, characterized in that: A rubber ring (10) is provided on the upper side of the support ring (11).

7. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 5, characterized in that: It also includes an unlocking lever (29) for pressing down and rotating the lock head (23).

8. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: The replacement filter screen includes two flexible positioning strips (17) and two filter screen pockets (14); two elongated sewage holes (9) are arranged in parallel on the manhole cover plate (7); two limiting guide plates (19) are fixed in parallel on the lower side of the manhole cover plate (7); the two flexible positioning strips (17) are detachably installed on the two limiting guide plates (19); the two filter screen pockets (14) are fixed on the two flexible positioning strips (17) respectively, and are used to filter the sewage falling from the two elongated sewage holes (9).

9. The anti-settlement reinforced concrete ductile iron integrated manhole cover according to claim 1, characterized in that: Multiple lifting rings (32) are pre-installed on the concrete anti-settlement slab (1).

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