Nodular cast iron well lid with noise reduction function

Abstract

The utility model relates to the technical field of nodular cast iron well lids, and provides a nodular cast iron well lid with a noise reduction function, which comprises an outer frame and a well lid, the well lid is arranged in the outer frame, a reinforcing component is arranged outside the outer frame, a sleeve layer is arranged in the outer frame, and a split mounting component is arranged between the outer frame and the well lid. The bottom rods are fixed to the periphery of the bottom of the sleeve layer, the noise reduction assembly is arranged at the bottom of the bottom rods, the split installation assembly comprises an inner ring groove, the sleeve layer is installed in the inner ring groove, a plurality of circular grooves are formed in the periphery of the side surface of the outer frame, and bolts are installed in the circular grooves and connected with the sleeve layer in a screwed mode. By means of the technical scheme, the problems that most anti-sound nodular cast iron well lids in the market in the related technology are poor in anti-sound effect, large sound is still made when pedestrians tread the surfaces of the anti-sound nodular cast iron well lids, water flow sound at the well bottom can be transmitted to the outside, and large noise is generated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ductile iron manhole covers, and in particular to a ductile iron manhole cover with a noise reduction function. Background Art

[0002] Ductile iron manhole cover is a kind of ductile iron product. Ductile iron is processed by spheroidizing and inoculating to obtain spherical graphite, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining a strength higher than carbon steel. Ductile iron is a high-strength cast iron material with comprehensive properties close to steel.

[0003] Most of the anti-noise ductile iron manhole covers on the market have poor anti-noise effect and will still make a loud noise when pedestrians step on their surface. The sound of water flow at the bottom of the well will also be transmitted to the outside, causing a lot of noise.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model proposes a ductile iron manhole cover with a noise reduction function, which solves the problem of noise-proof ductile iron manhole covers on the market in the related technology. Most of them have poor noise-proof effects and still make a loud noise when pedestrians step on their surfaces. The sound of water flow at the bottom of the well will also be transmitted to the outside, causing a large noise problem.

[0006] The technical solution of the utility model is as follows:

[0007] An outer frame and a manhole cover, wherein the manhole cover is arranged inside the outer frame;

[0008] a reinforcement component, the reinforcement component being arranged outside the outer frame;

[0009] a jacket layer and a split mounting assembly, wherein the jacket layer is arranged inside the outer frame, and the split mounting assembly is arranged between the outer frame and the manhole cover;

[0010] A plurality of bottom rods and noise reduction components, wherein the bottom rods are fixed around the bottom of the sleeve layer, and the noise reduction components are arranged at the bottom of the bottom rods;

[0011] The split mounting assembly includes an inner ring, the inner ring groove is opened on the surface of the outer frame, the sleeve is installed in the inner ring groove, a plurality of circular grooves are opened around the side surface of the outer frame, bolts are installed in the circular grooves, and the bolts are screwed and connected to the sleeve.

[0012] As a further technical solution, the side surface of the manhole cover is provided with several slots, the outer frame surface is provided with several grooves, the inner surface of the inner ring groove is provided with several inner grooves, and the side surface of the sleeve is provided with several through holes.

[0013] As a further technical solution, a connecting screw is rotatably connected between the groove and the inner groove, a clamping block is slidably connected between the through hole and the clamping groove, and one end of the connecting screw is screwed to the clamping block through a thread.

[0014] As a further technical solution, a plurality of movable grooves are provided at the bottom inner of the sleeve layer, an extension groove is provided at the bottom inner of the movable groove, and a support rod is connected to the movable sleeve in the movable groove and the extension groove.

[0015] As a further technical solution, the upper end of the support rod is supported on the bottom of the manhole cover, a first spring is sleeved on the outside of the support rod, and a second spring is connected between the lower end of the support rod and the extension groove.

[0016] As a further technical solution, the reinforcement assembly includes a stabilizing plate frame, which is fixed around the side surface of the outer frame, and a plurality of fixing columns are provided on the bottom surface of the stabilizing plate.

[0017] As a further technical solution, the noise reduction component includes a sound absorbing panel, which is fixed to the lower end of the bottom rod. Both the inner and outer surfaces of the sound absorbing panel are provided with a plurality of annular grooves.

[0018] As a further technical solution, the inner surface of the card slot and the side surface of the card block are both inclined structural surfaces.

[0019] As a further technical solution, a sealing plug is installed in the groove.

[0020] As a further technical solution, the sound absorbing panel is in an umbrella-shaped structure as a whole.

[0021] The working principle and beneficial effects of the utility model are as follows:

[0022] 1. The utility model is provided with a split installation component. Through the interaction of structures such as the inner ring groove, circular groove, bolts, grooves, inner grooves, connecting screws, blocks, movable grooves, support rods and the first spring, the manhole cover can be firmly installed in the sleeve layer through the cooperation of the blocks and the grooves. It will not loosen or make noises when run over by vehicles, and can effectively reduce the generation of noise.

[0023] 2. The utility model is provided with a noise reduction component. Through the interaction between the sound-absorbing plate and the annular groove and other structures, the sound-absorbing plate can be placed in the well to absorb the sound of the water flow in the well and reduce the impact on the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is the axonometric drawing of the utility model;

[0027] Figure 3 This is a cross-sectional view of the utility model;

[0028] Figure 4 This is a cross-sectional view from another perspective of the present invention;

[0029] Figure 5 For this utility model Figure 3 A partial enlarged view of part A;

[0030] Figure 6 For this utility model Figure 3 A partial enlarged view of part B;

[0031] Figure 7 For this utility model Figure 4 A partial enlarged view of part C in the middle;

[0032] In the figure: 1. Outer frame; 2. Manhole cover; 3. Sleeve; 4. Bottom rod; 5. Split installation assembly; 5-1. Inner ring groove; 5-2. Circular groove; 5-3. Bolt; 5-4. Slot; 5-5. Groove; 5-6. Inner groove; 5-7. Through hole; 5-8. Connecting screw; 5-9. Block; 5-10. Movable groove; 5-11. Extension groove; 5-12. Support rod; 5-13. First spring; 5-14. Second spring; 6. Reinforcement assembly; 6-1. Stabilizing plate frame; 6-2. Fixing column; 7. Noise reduction assembly; 7-1. Sound-absorbing panel; 7-2. Annular groove; 8. Sealing plug. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 7 As shown, this embodiment proposes a ductile iron manhole cover with noise reduction function, including

[0035] An outer frame 1 and a manhole cover 2, wherein the manhole cover 2 is arranged inside the outer frame 1;

[0036] A reinforcement component 6 is provided outside the outer frame 1;

[0037] The jacket layer 3 and the split installation component 5 are arranged in the outer frame 1, and the split installation component 5 is arranged between the outer frame 1 and the manhole cover 2;

[0038] Several bottom rods 4 and noise reduction components 7, the bottom rods 4 are fixed around the bottom of the sleeve 3, and the noise reduction components 7 are arranged at the bottom of the bottom rods 4;

[0039] The split installation component 5 includes an inner ring, an inner ring groove 5-1 is opened on the surface of the outer frame 1, and the sleeve 3 is installed in the inner ring groove 5-1. A plurality of circular grooves 5-2 are opened around the side surface of the outer frame 1, and bolts 5-3 are installed in the circular grooves 5-2. The bolts 5-3 are screwed together with the sleeve 3. A plurality of card grooves 5-4 are opened around the side surface of the manhole cover 2, and a plurality of grooves 5-5 are opened on the surface of the outer frame 1. A plurality of inner grooves 5-6 are opened around the inner surface of the inner ring groove 5-1, and a plurality of through holes 5-7 are opened around the side surface of the sleeve 3. The grooves 5-5 and the inner grooves 5-6 are rotatably connected. The connecting screw 5-8, the through hole 5-7 and the card slot 5-4 are slidably connected with a card block 5-9, one end of the connecting screw 5-8 is screwed to the card block 5-9 by a thread, and a plurality of movable grooves 5-10 are provided at the bottom of the inner bottom of the sleeve 3, and an extension groove 5-11 is provided at the bottom of the movable groove 5-10. The movable groove 5-10 and the extension groove 5-11 are movably connected with a support rod 5-12, and the upper end of the support rod 5-12 is supported on the bottom of the manhole cover 2. The outside of the support rod 5-12 is provided with a first spring 5-13, and a second spring 5-14 is connected between the lower end of the support rod 5-12 and the extension groove 5-11.

[0040] In this embodiment, in order to achieve the effect of firm installation and easy disassembly of the manhole cover 2, a split installation component 5 is designed. An inner ring groove 5-1 is provided on the surface of the outer frame 1, the sleeve 3 is installed in the inner ring groove 5-1, and the manhole cover 2 is installed in the sleeve 3. A plurality of circular grooves 5-2 are provided on the side surface of the outer frame 1 and bolts 5-3 are installed. The bolts 5-3 are used to screw and fix with the sleeve 3. A plurality of card grooves 5-4 are provided on the side surface of the manhole cover 2, and a plurality of grooves 5-5, inner grooves 5-6 and through holes 5-7 are provided in the outer frame 1. The positions of the grooves 5-4 correspond to the grooves 5-4, and a connecting screw 5-8 is rotatably connected in the through hole 5-7. The connecting screw 5- One end of 8 is connected to a block 5-9 by threaded cooperation, and the connecting screw 5-8 can be screwed to push the block 5-9 forward. The block 5-9 is used to be inserted into the slot 5-4, so that the manhole cover 2 can be fixed in the inner ring groove 5-1. The surface of the sleeve 3 is provided with a movable groove 5-10 and an extension groove 5-11 extending toward the bottom rod 4. A support rod 5-12 is set in the movable groove 5-10 and the extension groove 5-11. The upper end of the support rod 5-12 is set with a first spring 5-13, and the bottom is provided with a second spring 5-14. When the block 5-9 is opened, the elastic force of the first spring 5-13 and the second spring 5-14 can be used to make the support rod 5-12 lift the manhole cover 2.

[0041] Furthermore, the reinforcement assembly 6 includes a stabilizing plate frame 6-1, which is fixed around the side surface of the outer frame 1, and a plurality of fixing columns 6-2 are provided on the bottom surface of the stabilizing plate.

[0042] In this embodiment, in order to achieve the effect of reinforcing the installation of the outer frame 1, a reinforcement component 6 is designed. A stabilizing plate frame 6-1 is fixed around the outside of the outer frame 1. The four corners of the bottom of the stabilizing plate frame 6-1 are all provided with a T-shaped cross-section fixation, which can be buried in the ground to strengthen the fixation.

[0043] Furthermore, the noise reduction component 7 includes a sound absorbing plate 7-1, which is fixed to the lower end of the bottom rod 4. A plurality of annular grooves 7-2 are provided on both the inner and outer surfaces of the sound absorbing plate 7-1.

[0044] In this embodiment, in order to achieve the effect of reducing the noise of water outflow, a noise reduction component 7 is designed, and a sound absorbing plate 7-1 is fixed at the lower end of the bottom rod 4. A plurality of annular grooves 7-2 are provided on both the inner and outer surfaces of the sound absorbing plate 7-1, which can increase the sound absorption effect.

[0045] Furthermore, the inner surface of the card slot 5-4 and the side surface of the card block 5-9 are both inclined structural surfaces.

[0046] In this embodiment, by tilting the structural surface, the manhole cover 2 can be pushed at an inclined angle, thereby enhancing the fixing effect of the manhole cover 2.

[0047] Furthermore, a sealing plug 8 is installed in the groove 5 - 5 .

[0048] In this embodiment, a sealing plug 8 is installed to block the groove 5-5 to prevent water from accumulating in the groove 5-5 and causing the connecting screw 5-8 to rust.

[0049] Furthermore, the sound absorbing panel 7-1 has an umbrella-shaped structure as a whole.

[0050] In this embodiment, the umbrella-shaped structure can improve the noise processing effect.

[0051] When installation is required, the outer frame 1 is installed to the ground through the stabilizing plate frame 6-1, the sleeve 3 is placed into the inner ring groove 5-1 and the bolts 5-3 are installed at the circular groove 5-2 to fix it, and the manhole cover 2 is fixedly placed in the sleeve 3, and the slot 5-4 is aligned with the position of the inner groove 5-6. Use a heavy object or a person to stand on the manhole cover 2 to press the manhole cover 2 down to shrink the support rod 5-12, and then screw the connecting screw 5-8 at the groove 5-5, push the block 5-9 into the slot 5-4 to complete the fixation, and finally put the sealing plug 8 into the groove 5-5. When taking out the manhole cover 2, open the sealing cover, screw the connecting screw 5-8 to retract the block 5-9, and the manhole cover 2 will be pushed up and lifted by the support rod 5-12, and then it can be removed. During use, the sound-absorbing panel 7-1 can be used to reduce the noise transmitted to the outside.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ductile iron manhole cover with noise reduction function, characterized in that: include An outer frame (1) and a manhole cover (2), wherein the manhole cover (2) is arranged inside the outer frame (1); a reinforcement component (6), the reinforcement component (6) being arranged outside the outer frame (1); A sleeve (3) and a split installation assembly (5), wherein the sleeve (3) is arranged inside the outer frame (1), and the split installation assembly (5) is arranged between the outer frame (1) and the manhole cover (2); A plurality of bottom rods (4) and noise reduction components (7), wherein the bottom rods (4) are fixed around the bottom of the sleeve layer (3), and the noise reduction components (7) are arranged at the bottom of the bottom rods (4); The split mounting assembly (5) includes an inner ring groove, the inner ring groove (5-1) is provided on the surface of the outer frame (1), the sleeve (3) is installed in the inner ring groove (5-1), and a plurality of circular grooves (5-2) are provided around the side surface of the outer frame (1), bolts (5-3) are installed in the circular grooves (5-2), and the bolts (5-3) are screwed and connected to the sleeve (3).

2. The ductile iron manhole cover with noise reduction function according to claim 1, characterized in that: The side surface of the manhole cover (2) is provided with a plurality of slots (5-4), the surface of the outer frame (1) is provided with a plurality of grooves (5-5), the inner surface of the inner ring groove (5-1) is provided with a plurality of inner grooves (5-6), and the side surface of the sleeve layer (3) is provided with a plurality of through holes (5-7).

3. The ductile iron manhole cover with noise reduction function according to claim 2, characterized in that: A connecting screw (5-8) is rotatably connected between the groove (5-5) and the inner groove (5-6), a clamping block (5-9) is slidably connected between the through hole (5-7) and the clamping groove (5-4), and one end of the connecting screw (5-8) is screwedly connected to the clamping block (5-9) via a thread.

4. The ductile iron manhole cover with noise reduction function according to claim 3, characterized in that: The inner bottom of the sleeve layer (3) is provided with a plurality of movable grooves (5-10), the inner bottom of the movable grooves (5-10) is provided with extension grooves (5-11), and the movable grooves (5-10) and the extension grooves (5-11) are movably connected with support rods (5-12).

5. The ductile iron manhole cover with noise reduction function according to claim 4, characterized in that: The upper end of the support rod (5-12) is supported on the bottom of the manhole cover (2); a first spring (5-13) is sleeved on the outside of the support rod (5-12); and a second spring (5-14) is connected between the lower end of the support rod (5-12) and the extension groove (5-11).

6. The ductile iron manhole cover with noise reduction function according to claim 1, characterized in that: The reinforcement assembly (6) comprises a stabilizing plate frame (6-1), the stabilizing plate frame (6-1) is fixed around the side surface of the outer frame (1), and a plurality of fixing columns (6-2) are provided on the bottom surface of the stabilizing plate.

7. The ductile iron manhole cover with noise reduction function according to claim 1, characterized in that: The noise reduction component (7) comprises a sound absorbing plate (7-1), which is fixed to the lower end of the bottom rod (4), and a plurality of annular grooves (7-2) are provided on both the inner and outer surfaces of the sound absorbing plate (7-1).

8. The ductile iron manhole cover with noise reduction function according to claim 3, characterized in that: The inner surface of the clamping slot (5-4) and the side surface of the clamping block (5-9) are both inclined structural surfaces.

9. The ductile iron manhole cover with noise reduction function according to claim 2, characterized in that: A sealing plug (8) is installed in the groove (5-5).

10. The ductile iron manhole cover with noise reduction function according to claim 7, characterized in that: The sound absorbing panel (7-1) is in an umbrella-shaped structure as a whole.

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