Anti-settling nodular cast iron well lid

Abstract

The utility model discloses an anti-settling nodular cast iron well lid, which comprises a well lid panel, a connecting rod, a connecting shaft, an external extension piece, a well lid base, an anti-skidding sealing gasket and a well frame, the well lid base is fixedly connected with the well frame, the connecting shaft is rotatably connected with the connecting rod, a second buffer cushion is arranged on the connecting rod, and the anti-skidding sealing gasket is arranged on the well lid panel. The second buffering pads are fully distributed below the connecting shaft and the connecting rod, the connecting rod is fixedly connected with the well lid panel, the external extending part is fixedly connected with the well lid base, a plurality of grooves are formed in the external extending part, the grooves are circumferentially fully distributed in the external extending part, the external extending part is provided with the first buffering pads, and the first buffering pads are fixedly connected with the well lid panel. The first buffering pad is detachably installed on the external extending piece, the anti-skid sealing pad is fixedly installed on the well frame, the size of the anti-skid sealing pad is matched with the size of the well lid panel and the size of the well frame, and the stability of the device can be enhanced, the overall safety of the device can be improved, the service life can be prolonged, and noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of manhole covers, in particular to a settlement-proof ductile iron manhole cover. Background Technique

[0002] The ductile iron manhole cover is a kind of ductile iron product. Ductile iron obtains spherical graphite through spheroidization and inoculation treatment, effectively improving the mechanical properties of cast iron, especially improving plasticity and toughness, thus obtaining a strength higher than that of carbon steel. Currently, the manhole cover structure used is a manhole seat buried under the road surface and a manhole cover set on the manhole seat. With the increase of modern traffic flow and the increase of vehicle load, under the action of vehicle load (dynamic load), the entire periphery of the manhole cover system is a stress concentration area. The manhole cover operates under overload under the action of vehicle load, and is prone to damage, resulting in settlement, displacement, vibration or damage of the manhole cover, and then affecting the riding comfort.

[0003] The patent with the application number CN202321503936.7 discloses a settlement-proof ductile iron manhole cover, including a settlement-proof ductile iron manhole cover. The surface of the settlement-proof ductile iron manhole cover is coated with an anti-rust layer, and the surface of the anti-rust layer is coated with a wear-resistant layer. The anti-rust layer includes a metaborate barium coating layer, a micaceous iron oxide coating layer and a perchloroethylene coating layer. Through the setting of the metaborate barium coating layer, the micaceous iron oxide coating layer and the perchloroethylene coating layer, the utility model solves the problem that the current settlement-proof ductile iron manhole cover has poor anti-rust effect and will rust after long-term contact with water, resulting in corrosion of the settlement-proof ductile iron manhole cover and inability to be used normally, greatly reducing the service life of the settlement-proof ductile iron manhole cover. Through the setting of the polyurea coating layer, the fluorocarbon coating layer and the polyamide coating layer, the purpose of wear resistance is achieved, and wear is avoided during use. However, this device has problems of poor overall stability, poor bite force with the ground, and low overall safety. Therefore, in order to enhance the stability of the device, improve the overall safety of the device, increase the service life, and reduce noise, the utility model provides a settlement-proof ductile iron manhole cover. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and design a settlement-proof ductile iron manhole cover.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: an anti-settling ductile iron manhole cover, comprising a manhole cover panel, a connecting rod, a connecting shaft, an external extension piece, a manhole cover base, an anti-skid sealing pad and a manhole frame, wherein the manhole cover base is fixedly connected to the manhole frame, the connecting shaft is rotatably connected to the connecting rod, a second buffer pad is provided on the connecting rod, and the second buffer pad is distributed below the connecting shaft and the connecting rod, the connecting rod is fixedly connected to the manhole cover panel, the external extension piece is fixedly connected to the manhole cover base, a plurality of grooves are provided on the external extension piece, and the circumference of the grooves is distributed on the external extension piece, a first buffer pad is provided on the external extension piece, the first buffer pad is detachably mounted on the external extension piece, the anti-skid sealing pad is fixedly mounted on the manhole frame, the size of the anti-skid sealing pad matches the size of the manhole cover panel and the manhole frame, the anti-skid sealing pad is made of flexible material, and can also effectively buffer the pressure on the manhole cover panel.

[0006] Furthermore, the outer side of the manhole cover base is in contact with a road base layer, and a pavement layer is provided on the upper layer of the road base layer. The pavement layer is in contact with an external extension piece, and the pavement layer can be filled into the groove, so that the external extension piece is more tightly connected to the pavement layer and is not easy to shake. A cavity is provided in the manhole cover panel, and a plurality of reinforcing blocks are provided in the cavity. The reinforcing blocks are evenly distributed in the cavity, so that the force can be more uniform. A water leakage hole is provided on the manhole cover panel, and an anti-rust layer is provided on the manhole cover panel. The anti-rust layer is located on the upper layer of the manhole cover panel. The anti-rust layer can increase the service life of the anti-settling ductile iron manhole cover and reduce rust. The surface layer of the anti-rust layer is provided with anti-slip patterns, and the anti-slip patterns can increase the friction during contact and prevent slipping.

[0007] The beneficial effects of the utility model are as follows: the device can enhance the stability of the device, improve the overall safety of the device, increase the service life, and reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of an anti-settling ductile iron manhole cover described in the utility model.

[0009] Figure 2 It is a top view schematic diagram of an anti-settling ductile iron manhole cover described in the utility model.

[0010] Figure 3 This is a bottom view schematic diagram of an anti-sinking ductile iron manhole cover described in the utility model

[0011] In the figure, 1. second buffer pad; 2. manhole cover panel; 3. connecting rod; 4. connecting shaft; 5. external extension piece; 6. first buffer pad; 7. groove; 8. manhole cover base; 9. anti-skid sealing pad; 10. manhole frame; 11. anti-rust layer; 12. cavity; 13. reinforcement block; 14. pavement layer; 15. road base layer; 16. leakage hole; 17. anti-skid pattern. DETAILED DESCRIPTION

[0012] In order to clearly describe the purpose, technical solution and advantages of the embodiment of the utility model, 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 making creative work are within the scope of protection of the utility model.

[0013] 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.

[0014] The utility model provides Figures 1-3 The anti-settling ductile iron manhole cover shown in the figure includes a manhole cover panel 2, a connecting rod 3, a connecting shaft 4, an external extension member 5, a manhole cover base 8, an anti-slip sealing pad 9 and a manhole frame 10, wherein the manhole cover base 8 is fixedly connected to the manhole frame 10, the connecting shaft 4 is rotatably connected to the connecting rod 3, a second buffer pad 1 is provided on the connecting rod 3, and the second buffer pad 1 is distributed below the connecting shaft 4 and the connecting rod 3, the connecting rod 3 is fixedly connected to the manhole cover panel 2, the external extension member 5 is fixedly connected to the manhole cover base 8, and the connection between the connecting rod 3 and the manhole cover panel 2 is reinforced The external extension piece 5 is connected to the connecting shaft 4, and the connecting shaft 4 is fixedly connected to the external extension piece 5. The external extension piece 5 is provided with a plurality of grooves 7, and the grooves 7 are distributed circumferentially on the external extension piece 5. The external extension piece 5 is provided with a first buffer pad 6, and the first buffer pad 6 is detachably mounted on the external extension piece 5. The anti-slip sealing pad 9 is fixedly mounted on the well frame 10, and the size of the anti-slip sealing pad 9 matches the size of the well cover panel 2 and the well frame 10. The anti-slip sealing pad 9 is made of flexible material and can also effectively buffer the pressure on the well cover panel 2.

[0015] Refer to the instruction manual Figures 1-3The outer side of the manhole cover base 8 is in contact with a road base layer 15, and a pavement layer 14 is provided on the upper layer of the road base layer 15. The pavement layer 14 is in contact with the external extension member 5, and the pavement layer 14 can be filled into the groove 7, so that the external extension member 5 is more tightly connected to the pavement layer 14 and is not easy to shake. A cavity 12 is provided in the manhole cover panel 2, and a plurality of reinforcing blocks 13 are provided in the cavity 12. The reinforcing blocks 13 are evenly distributed in the cavity 12, which can make the force more uniform. A water leakage hole 16 is provided on the manhole cover panel 2, and the anti-rust layer 11 is located on the upper layer of the manhole cover panel 2. The manhole cover panel 2 is provided with an anti-rust layer 11, which can increase the service life of the anti-settling ductile iron manhole cover and reduce rust. The surface layer of the anti-rust layer 11 is provided with anti-skid patterns 17, and the anti-skid patterns 17 can increase the friction during contact and prevent slipping.

[0016] The working process of this device is as follows: the device includes a manhole cover panel 2, a connecting rod 3, a connecting shaft 4, an external extension piece 5, a manhole cover base 8, an anti-skid sealing pad 9, a manhole frame 10, a cavity 12 and an anti-rust layer 11. The external extension piece 5 is fixedly connected to the manhole cover base 8 to enhance stability. The design of the external extension piece 5 can make the pavement layer 14 tightly connected with the groove 7, enhance the bite force with the ground, and thus make the device more firmly installed on the ground. A first buffer pad 6 is provided at the bottom of the external extension piece 5. The first buffer pad 6 can buffer the pressure exerted on the device and reduce the breakage. A second buffer pad 1 is provided on the connecting rod 3. The second buffer pad 1 is distributed under the connecting shaft 4 and the connecting rod 3 to reduce the risk of breakage at the connection between the connecting rod 3 and the manhole cover panel 2. The manhole frame 10 is used to support the manhole cover panel 2. The anti-skid sealing pad 9 is located between the manhole frame 10 and the manhole cover panel 2. Between the cover panels 2, the pressure on the manhole cover panel 2 can be effectively buffered and the noise generation can be reduced. A cavity 12 is provided in the manhole cover panel 2, and a plurality of reinforcing blocks 13 are provided in the cavity 12. The reinforcing blocks 13 are evenly distributed in the cavity 12, which can reduce the weight of the manhole cover panel 2 while strengthening the protection of the manhole cover panel 2 and improving the support. The connecting shaft 4 is rotatably connected to the connecting rod 3, and the connecting rod 3 is fixedly connected to the manhole cover panel 2. When the staff needs to inspect the inside of the well body, they can use tools to hook the leakage hole 16 to open the manhole cover panel 2. An anti-rust layer 11 is provided on the manhole cover panel 2, and the anti-rust layer 11 can reduce rust and increase the service life of the anti-settling ductile iron manhole cover. The surface layer of the anti-rust layer 11 is provided with anti-skid patterns 17, and the anti-skid patterns 17 can increase the friction force of the dynamic load when it contacts the manhole cover panel 2, prevent slipping, and improve safety.

[0017] Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A settlement-proof ductile iron manhole cover, comprising a manhole cover panel (2), a connecting rod (3), a connecting shaft (4), an external extension (5), a manhole cover base (8), an anti-slip gasket (9) and a manhole frame (10), characterized in that, The manhole cover base (8) is fixedly connected to the manhole frame (10), the connecting shaft (4) is rotatably connected to the connecting rod (3), a second buffer pad (1) is provided on the connecting rod (3), the second buffer pad (1) is arranged under the connecting shaft (4) and the connecting rod (3) in a covering manner, the connecting rod (3) is fixedly connected to the manhole cover panel (2), the external extension (5) is fixedly connected to the manhole cover base (8), a plurality of grooves (7) are provided on the external extension (5), the grooves (7) are arranged in a circumferential covering manner on the external extension (5), a first buffer pad (6) is provided on the external extension (5), the first buffer pad (6) is detachably installed on the external extension (5), and the anti-slip sealing pad (9) is fixedly installed on the manhole frame (10).

2. The anti-settlement ductile iron manhole cover according to claim 1, characterized in that, The outer side of the manhole cover base (8) is in contact with the road base course (15).

3. The anti-settlement ductile iron manhole cover according to claim 2, characterized in that, A road surface layer (14) is provided on the upper layer of the road base course (15), and the road surface layer (14) is in contact with the external extension (5).

4. The anti-settlement ductile iron manhole cover according to claim 1, wherein A cavity (12) is provided inside the manhole cover panel (2), and a plurality of strengthening blocks (13) are provided in the cavity (12), and the strengthening blocks (13) are evenly distributed in the cavity (12).

5. The anti-settlement ductile iron manhole cover according to claim 1, characterized in that, Leakage holes (16) are provided on the manhole cover panel (2).

6. The anti-settlement ductile iron manhole cover according to claim 1, wherein An anti-rust layer (11) is provided on the manhole cover panel (2), the anti-rust layer (11) is located on the upper layer of the manhole cover panel (2), and anti-slip patterns (17) are provided on the surface layer of the anti-rust layer (11).

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