Nodular cast iron anti-sedimentation well lid

Abstract

The utility model discloses a nodular cast iron anti-sedimentation well lid, which comprises a well seat and a well lid body, the inner ring of the well seat is fixedly connected with a support ring, the outer ring of the well seat is fixedly connected with an anti-sedimentation outer ring, the periphery of the anti-sedimentation outer ring is in threaded connection with a plurality of threaded lead screws, the bottom ends of the threaded lead screws are provided with support bottom plates, and the support bottom plates are provided with support holes. A square head is installed at the top end of the threaded lead screw, a limiting ring is fixedly connected to an inner ring of the well base, a limiting ring groove is formed in the limiting ring, an anti-falling ring is arranged on the limiting ring groove and embedded in the limiting ring groove in a matched mode, and a plurality of anti-falling rods are fixedly connected into the anti-falling ring. The well lid has the advantages that the well base can be leveled, the installation efficiency is improved, the meshing force between the well base and the ground is increased, the stability of the well base is improved, the phenomenon of sedimentation is avoided, the bearing strength of the well lid body is improved, the phenomenon of bending and sinking of the well lid body is avoided, the service life is prolonged, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a ductile iron anti-sinking manhole cover. Background Art

[0002] Ductile iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel. Based on its excellent performance, it has been successfully used to cast some parts with complex stresses and high requirements for strength, toughness and wear resistance. Ductile iron has rapidly developed into a cast iron material second only to gray cast iron.

[0003] The utility model with application number CN202022953330.6 discloses a ductile iron manhole cover with good wear resistance. The impact force is transmitted to the vertical rod through the wear-resistant protrusion, so that the vertical rod pushes the pressure block downward through the limit guide of the limit block, so that the pressure block squeezes spring one, so that spring one contracts, and the impact energy is converted into elastic potential energy, so as to achieve the purpose of preliminary buffering. At the same time, the pressure block drives one end of the rotating rod to move downward, so that the rotating rod rotates around the slider one, so that the other end of the rotating rod squeezes the pressure plate, so that the pressure plate translates to both sides through the slider two, so that the pressure plate squeezes spring two, so that spring two further absorbs the impact, and cooperates with the buffer pad to fully decompose the impact force. At the same time, the rotating rod converts the impact force in the vertical direction into the impact force in the horizontal direction, so as to achieve the purpose of protecting the manhole cover.

[0004] The above-mentioned device buffers the impact force by arranging a buffer mechanism in the cavity inside the cover body. The interior of the cover body is a cavity, which reduces the bearing strength of the manhole cover. The manhole cover is prone to bending and depression, which reduces the service life. The manhole cover is often crushed by cars, the service life of the spring is short, and it is not easy to replace the spring. After the manhole cover is damaged, pedestrians are likely to fall into the pipe, the safety is low, the shell and the ground do not fit well, the manhole cover transmits the vibration force to the shell, the shell is prone to settlement, the stability is poor, and the service life is reduced.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a ductile iron anti-sinking manhole cover.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A ductile iron anti-subsidence manhole cover, comprising a manhole seat and a manhole cover body, the inner ring of the manhole seat is fixedly connected to a support ring, the manhole cover body and the manhole seat are arranged in a corresponding manner, the manhole cover body is embedded above the support ring, the outer ring of the manhole seat is fixedly connected to an anti-subsidence outer ring, a plurality of threaded screws are threadedly connected around the anti-subsidence outer ring, the threaded screws are evenly distributed around the anti-subsidence outer ring, the threaded screws penetrate the anti-subsidence outer ring, a supporting base plate is installed at the bottom end of the threaded screw, a square head is installed at the top end of the threaded screw, the inner ring of the manhole seat is fixedly connected to a limiting ring, a limiting ring is provided with a limiting ring groove, an anti-falling ring is provided on the limiting ring groove, the anti-falling ring is matched and embedded in the limiting ring groove, and a plurality of anti-falling rods are fixedly connected in the anti-falling ring.

[0009] Furthermore, the inner ring of the anti-fall ring is fixedly connected to a reinforcing rod, the reinforcing rod is located below the anti-fall rod and in contact with the anti-fall rod, a plurality of rotating blocks are rotatably connected to the reinforcing rod, the plurality of rotating blocks are respectively located between adjacent anti-fall rods, a support rod is installed on the top of the rotating block, a plurality of fixed sleeves are installed on the bottom surface of the manhole cover body, the plurality of fixed sleeves are positioned opposite to the plurality of support rods, and the top of the support rod is inserted into the fixed sleeve.

[0010] Furthermore, the surface of the manhole cover body is coated with an anti-rust layer, and the surface of the anti-rust layer is coated with a wear-resistant layer.

[0011] Furthermore, a shock absorbing block is installed at the top end of the support rod, the shock absorbing block is tightly fitted with the fixing sleeve, the diameter of the shock absorbing block is the same as the diameter of the support rod, and the diameter of the support rod is the same as the inner diameter of the fixing sleeve.

[0012] Furthermore, the diameter of the manhole cover body is the same as the inner diameter of the manhole seat, the inner diameter of the support ring is larger than the inner diameter of the limit ring, and the inner diameter of the support ring is larger than the diameter of the anti-fall ring.

[0013] Compared with the prior art, this technical solution has the following beneficial effects:

[0014] The well seat is leveled by the threaded screws around the anti-settling outer ring and the supporting bottom plate. There is no need to lay materials at the bottom of the well seat, which improves the installation efficiency. Concrete is first filled between the anti-settling outer ring and the supporting bottom plate, and then concrete or asphalt is laid on the surface of the anti-settling outer ring to make the road surface level with the well seat surface. The supporting bottom plate and the anti-settling outer ring are combined with the ground, which increases the bite force between the well seat and the ground, improves the stability of the well seat, avoids settlement, and increases the service life.

[0015] The manhole cover body is supported by reinforcing rods, rotating blocks, supporting rods and fixed sleeves, which improves the bearing strength of the manhole cover body, avoids bending and depression of the manhole cover body, and increases the service life of the manhole cover body. The vibration force can be absorbed by the shock-absorbing block, thereby improving stability.

[0016] When the manhole cover body is damaged or removed from the manhole seat, the rotating block drives the support rod to rotate along the reinforcing rod under the action of gravity, so that the support rod is in a vertical downward state, and the anti-fall ring and the anti-fall rod play a protective role, preventing pedestrians from falling into the well, preventing the support rod from causing harm to pedestrians, and avoiding dangerous phenomena, thereby improving safety, facilitating the installation and removal of the anti-fall ring, facilitating replacement, and improving installation efficiency;

[0017] The anti-rust layer improves the anti-rust effect of the manhole cover body, avoids rust on the manhole cover body, and improves the wear-resistant layer to avoid wear on the manhole cover body, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a ductile iron anti-sinking manhole cover described in the utility model.

[0019] Figure 2 This is a top view of the well base.

[0020] Figure 3 This is an enlarged cross-sectional view of the anti-fall ring.

[0021] Figure 4 This is an enlarged top view of the anti-fall ring.

[0022] Figure 5 This is an enlarged bottom view of the manhole cover body.

[0023] Figure 6 It is an enlarged cross-sectional view of the manhole cover body.

[0024] In the figure: 1. well seat; 2. well cover body; 3. support ring; 4. anti-sinking outer ring; 5. threaded screw; 6. supporting bottom plate; 7. square head; 8. limiting ring; 9. limiting ring groove; 10. anti-fall ring; 11. anti-fall rod; 12. reinforcing rod; 13. rotating block; 14. support rod; 15. fixed sleeve; 16. anti-rust layer; 17. wear-resistant layer; 18. shock-absorbing block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] The utility model provides Figure 1-6 A ductile iron anti-sinking manhole cover shown in the figure comprises a manhole seat 1 and a manhole cover body 2, the inner ring of the manhole seat 1 is fixedly connected with a support ring 3, the manhole cover body 2 is matched with the manhole seat 1, the manhole cover body 2 is embedded above the support ring 3, the outer ring of the manhole seat 1 is fixedly connected with an anti-sinking outer ring 4, a plurality of threaded screws 5 are threadedly connected around the anti-sinking outer ring 4, the threaded screws 5 are evenly distributed around the anti-sinking outer ring 4, the threaded screws 5 penetrate the anti-sinking outer ring 4, a supporting bottom plate 6 is installed at the bottom end of the threaded screw 5, a square head 7 is installed at the top end of the threaded screw 5, the inner ring of the manhole seat 1 is fixedly connected with a limiting ring 8, the limiting ring 8 is provided with a limiting ring groove 9, the limiting ring groove 9 is provided with an anti-falling ring 10, the anti-falling ring 10 is matched and embedded in the limiting ring groove 9, and a plurality of anti-falling rods 11 are fixedly connected in the anti-falling ring 10.

[0028] During installation, the well seat 1 is installed in the installation position accordingly. When the surface of the well seat 1 is not at the same level as the ground or is inclined, the operator uses a tool to connect with the square head 7 at the top of the threaded screw 5, and uses the tool to rotate the threaded screw 5. The threaded screw 5 rotates and rises on the anti-settling outer ring 4, and the threaded screw 5 drives the supporting bottom plate 6 to rise and fall. The well seat 1 is supported by the supporting bottom plate 6 and the threaded screw 5. The well seat 1 is leveled by the threaded screw 5 and the supporting bottom plate 6 around the anti-settling outer ring 4. There is no need to lay materials at the bottom of the well seat 1, which improves the installation efficiency. Efficiency, first fill concrete between the anti-settling outer ring 4 and the supporting bottom plate 6, and then lay concrete or asphalt on the surface of the anti-settling outer ring 4 to make the road surface level with the surface of the well seat 1, and the supporting bottom plate 6 and the anti-settling outer ring 4 are combined with the ground, which increases the bite force between the well seat 1 and the ground, improves the stability of the well seat 1, avoids settlement, and increases the service life. When the manhole cover body 2 is damaged or removed from the well seat 1, the anti-fall ring 10 and the anti-fall rod 11 play a protective role, preventing pedestrians from falling into the well, avoiding dangerous phenomena, and improving safety.

[0029] Refer to the instruction manual Figure 3 , Instruction Manual Figure 4 , Instruction Manual Figure 5 And the instruction manual Figure 6 The inner ring of the anti-fall ring 10 is fixedly connected with a reinforcing rod 12, which is located below the anti-fall rod 11 and in contact with the anti-fall rod 11. A plurality of rotating blocks 13 are rotatably connected to the reinforcing rod 12, and the plurality of rotating blocks 13 are respectively located between adjacent anti-fall rods 11. A support rod 14 is installed on the top of the rotating block 13. A plurality of fixed sleeves 15 are installed on the bottom surface of the manhole cover body 2. The plurality of fixed sleeves 15 are opposite to the plurality of support rods 14, and the top of the support rod 14 is inserted into the fixed sleeve 15.

[0030] After the installation of the well seat 1 is completed, the operator rotates the rotating block 13 along the reinforcing rod 12 to make the support rod 14 in a vertical state, uses a rope or a long rod to make the support rod 14 in a vertical state, assembles the well cover body 2 to the well seat 1, and at the same time inserts the top of the support rod 14 into the fixing sleeve 15, removes the rope or the long rod, and supports the well cover body 2 through the reinforcing rod 12, the rotating block 13, the support rod 14 and the fixing sleeve 15, thereby improving the bearing strength of the well cover body 2, avoiding the bending and depression of the well cover body 2, and improving the service life of the well cover body 2. When the well cover body 2 is damaged or removed from the well seat 1, the rotating block 13 drives the support rod 14 to rotate along the reinforcing rod 12 under the action of gravity, so that the support rod 14 is in a vertical downward state, avoiding the support rod 14 from causing harm to pedestrians, and playing a protective role through the anti-fall ring 10 and the anti-fall rod 11, avoiding pedestrians from falling into the well, avoiding dangerous phenomena, and improving safety.

[0031] Refer to the instruction manual Figure 6 The surface of the manhole cover body 2 is coated with an anti-rust layer 16, and the surface of the anti-rust layer 16 is coated with a wear-resistant layer 17.

[0032] The anti-rust layer 16 improves the anti-rust effect of the manhole cover body 2, thereby preventing the manhole cover body 2 from rusting. The wear-resistant layer 17 prevents the manhole cover body 2 from wearing, thereby improving the service life.

[0033] Refer to the instruction manual Figure 1 And the instruction manual Figure 3 A shock absorbing block 18 is installed at the top of the support rod 14. The shock absorbing block 18 fits tightly with the fixed sleeve 15. The diameter of the shock absorbing block 18 is the same as the diameter of the support rod 14. The diameter of the support rod 14 is the same as the inner diameter of the fixed sleeve 15.

[0034] The support rod 14 and the shock absorbing block 18 are inserted into the fixing sleeve 15 , and the shock absorbing block 18 is tightly fitted with the fixing sleeve 15 . The shock absorbing block 18 can absorb the vibration force, thereby improving the stability.

[0035] Refer to the instruction manual Figure 1 The diameter of the manhole cover body 2 is the same as the inner diameter of the manhole seat 1, the inner diameter of the support ring 3 is larger than the inner diameter of the limit ring 8, and the inner diameter of the support ring 3 is larger than the diameter of the anti-fall ring 10.

[0036] The inner diameter of the support ring 3 is larger than the diameter of the anti-fall ring 10, which facilitates the installation and disassembly of the anti-fall ring 10 and the replacement, thereby improving the installation efficiency.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ductile iron anti-sinking manhole cover, comprising a manhole seat (1) and a manhole cover body (2), wherein the inner ring of the manhole seat (1) is fixedly connected to a support ring (3), the manhole cover body (2) and the manhole seat (1) are arranged in a corresponding matching manner, and the manhole cover body (2) is embedded above the support ring (3), characterized in that: The outer ring of the well seat (1) is fixedly connected to an anti-settling outer ring (4), and a plurality of threaded screws (5) are threadedly connected around the anti-settling outer ring (4). The threaded screws (5) are evenly distributed around the anti-settling outer ring (4), and the threaded screws (5) penetrate the anti-settling outer ring (4). A supporting bottom plate (6) is installed at the bottom end of the threaded screw (5), and a square head (7) is installed at the top end of the threaded screw (5). The inner ring of the well seat (1) is fixedly connected to a limiting ring (8), and a limiting ring groove (9) is provided on the limiting ring groove (9). An anti-falling ring (10) is provided on the limiting ring groove (9), and the anti-falling ring (10) is matched and embedded in the limiting ring groove (9). A plurality of anti-falling rods (11) are fixedly connected inside the anti-falling ring (10).

2. The ductile iron anti-sinking manhole cover according to claim 1 is characterized in that: The inner ring of the anti-fall ring (10) is fixedly connected to a reinforcing rod (12), the reinforcing rod (12) is located below the anti-fall rod (11) and contacts the anti-fall rod (11), a plurality of rotating blocks (13) are rotatably connected to the reinforcing rod (12), the plurality of rotating blocks (13) are respectively located between adjacent anti-fall rods (11), a support rod (14) is installed at the top of the rotating block (13), and a plurality of fixed sleeves (15) are installed on the bottom surface of the manhole cover body (2), the plurality of fixed sleeves (15) are located opposite to the plurality of support rods (14), and the top of the support rod (14) is inserted into the fixed sleeve (15).

3. The ductile iron anti-sinking manhole cover according to claim 1, characterized in that: The surface of the manhole cover body (2) is coated with an anti-rust layer (16), and the surface of the anti-rust layer (16) is coated with a wear-resistant layer (17).

4. The ductile iron anti-sinking manhole cover according to claim 2 is characterized in that: A shock absorbing block (18) is installed at the top end of the support rod (14); the shock absorbing block (18) is tightly fitted with the fixed sleeve (15); the diameter of the shock absorbing block (18) is the same as the diameter of the support rod (14); and the diameter of the support rod (14) is the same as the inner diameter of the fixed sleeve (15).

5. The ductile iron anti-sinking manhole cover according to claim 1, characterized in that: The diameter of the manhole cover body (2) is the same as the inner diameter of the manhole seat (1), the inner diameter of the support ring (3) is larger than the inner diameter of the limit ring (8), and the inner diameter of the support ring (3) is larger than the diameter of the anti-fall ring (10).

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