Noise reduction type nodular cast iron well lid

Abstract

The utility model relates to the field of well lids, discloses a noise reduction type nodular cast iron well lid and solves the problem that an existing noise reduction type nodular cast iron well lid is poor in protection effect. Through a first magnetic ring assembly, a circular plate, an abutting rod, a rotating plate, a rotating rod, a clamping block, a clamping groove, an opening rubber strip and a notch, a pressing plate which is lower than the bottom face of a cover body by centimeter firstly makes contact with the top face of an inner base and is extruded, so that the pressing plate drives a moving block to slide upwards in a channel, the moving block drives a tension spring to be pulled to store force, and the inner base is pressed. The inclined face of the top face of the pressing plate is matched with the inclined face of the driven plate, so that the pressing plate moves upwards to linearly push the driven plate, the driven plate drives the sliding block to slide in the sliding groove, the driven plate drives the rubber strip connected with one end to move from the interior of the groove opening to the exterior, and therefore the rubber strip blocks a gap between the cover body and the cover base. And noise generated by vibration when a vehicle presses the well lid is reduced, and the noise reduction effect is achieved.

Description

Technical Field

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

[0002] With the development of the economy, the distribution of urban underground facilities has been continuously expanding, resulting in an increasing number of manhole covers, which are the closures at the entrances of underground facilities; however, when pedestrians pass by or vehicles drive over the manhole covers, vibrations are generated between the manhole cover and the cover seat, causing knocking sounds, which cause great trouble to both people and vehicles.

[0003] During the use of the existing noise-reducing ductile iron manhole cover, when a vehicle passes over this manhole cover with a movable connection, due to the relatively flexible connection between one side of the manhole cover and the cover seat, the weight and dynamic impact of the vehicle will cause one side of the manhole cover to jump up. This phenomenon not only generates noise, affects the surrounding environment and the quality of life of residents, but also, in the long run, leads to damage to the manhole cover and its connecting parts, increases the maintenance cost, and the jumping manhole cover also poses a certain safety hazard to the vehicle itself. The jumping manhole cover may collide with the tires or chassis of the vehicle, causing damage to the vehicle. Content of the Utility Model

[0004] The purpose of the utility model is to provide a noise-reducing ductile iron manhole cover, which works with this device, thus solving the problem of poor protection effect of the existing noise-reducing ductile iron manhole cover.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a noise-reducing ductile iron manhole cover, including a base, a cover seat arranged at the top end of the base, an inner seat arranged inside the cover seat, a rotating rod rotatably connected to one side of the cover seat, a cover body arranged on one side of the rotating rod, and a limiting structure arranged inside the cover seat;

[0006] The limiting structure includes a long groove opened inside the cover seat, a rotating rod rotatably connected inside the long groove, a rotating plate arranged on the surface of the rotating rod, a clamping block arranged at one end of the rotating plate, a clamping groove opened on the bottom surface of the cover body, and a pushing rod movably connected inside the cover seat.

[0007] Further, a round plate is arranged at the top end of the pushing rod, and a second magnetic ring is arranged at the bottom end of the round plate.

[0008] Further, an opening is opened on the top surface of the cover seat, and the size of the round plate is equal to that of the opening.

[0009] Further, a first magnetic ring is arranged inside the opening, and the first magnetic ring and the second magnetic ring attract each other with opposite poles at the top.

[0010] Further, a notch is opened on the side surface of the cover body, and a rubber strip is placed inside the notch.

[0011] Furthermore, a pushing structure is provided inside the cover body, and the pushing structure includes grooves opened at the four corners of the cover body, a slide groove is embedded inside the groove, a slider is slidably connected inside the slide groove, a spring is provided at one end of the slider, and one end of the spring is connected to the slide groove.

[0012] Furthermore, a driven plate is provided on one side of the sliding block, the driven plate is a right-angled trapezoid, and one side of the driven plate is an inclined surface.

[0013] Furthermore, a groove is provided inside the cover body, and a moving block is slidably connected inside the groove. A tension spring is provided at one end of the moving block, and one end of the tension spring is connected to the groove. A pressure plate is provided on one side of the moving block. The pressure plate is a right-angled trapezoid, and the top of the pressure plate is an inclined surface. The inclined surface of the pressure plate matches the inclined surface of the driven plate, and the bottom end of the pressure plate is centimeters lower than the bottom surface of the cover body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model proposes a noise-reducing ductile iron manhole cover. The existing noise-reducing ductile iron manhole covers have poor protective effects. The utility model uses a magnetic ring component, a circular plate, a stopper rod, a rotating plate, a rotating rod, a clamping block, a clamping groove, an opening rubber strip and a notch. A pressing plate that is centimeters lower than the bottom surface of the cover body first contacts the top surface of the inner seat and is squeezed, so that the pressing plate drives the moving block to slide upward inside the groove, and the moving block drives the tension spring to be pulled and accumulate force. The inclined surface of the top surface of the pressing plate matches the inclined surface of the driven plate, so that the pressing plate moves upward to push the driven plate linearly, so that the driven plate drives the slider to slide inside the slide groove, and the driven plate drives the rubber strip connected at one end to move from the inside of the notch to the outside, so that the rubber strip blocks the gap between the cover body and the cover seat, reduces the noise generated by vibration when the vehicle passes over the manhole cover, and achieves the effect of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the cover seat, cover body, inner seat and limiting structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the three-dimensional structure enlarged at B in the middle;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the cover body, rubber strip, groove and pushing structure of the utility model;

[0020] Figure 5 For the utility model Figure 4 Schematic diagram of the three-dimensional structure enlarged at point A in the middle.

[0021] In the figure: 1, base; 2, cover base; 3, inner base; 4, rotating rod; 5, cover body; 6, pushing structure; 61, groove; 62, driven plate; 63, slider; 64, spring; 65, chute; 66, pressing plate; 67, moving block; 68, tension spring; 7, limiting structure; 71, first magnetic ring; 72, second magnetic ring; 73, circular plate; 74, pushing rod; 75, rotating plate; 76, rotating rod; 77, clamping block; 78, clamping groove; 79, opening; 8, rubber strip; 9, notch. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0024] Combined with Figures 1 - 3 , a noise-reducing ductile iron manhole cover, including a base 1, a cover base 2 provided at the top end of the base 1, an inner base 3 provided inside the cover base 2, a rotating rod 4 rotatably connected to one side of the cover base 2, a cover body 5 provided on one side of the rotating rod 4, and a limiting structure 7 provided inside the cover base 2.

[0025] The present invention will be further described below in conjunction with the embodiments.

[0026] Embodiment 1:

[0027] Please refer to Figures 1 - 3 , the limiting structure 7 includes a long groove opened inside the cover base 2, a rotating rod 76 rotatably connected inside the long groove, a rotating plate 75 provided on the surface of the rotating rod 76, a clamping block 77 provided at one end of the rotating plate 75, a clamping groove 78 opened on the bottom surface of the cover body 5, a pushing rod 74 movably connected inside the cover base 2, a circular plate 73 provided at the top end of the second magnetic ring 72, the circular plate 73 is connected to the pushing rod 74, an opening 79 is opened on the top surface of the cover base 2, the circular plate 73 and the opening 79 have the same size, a first magnetic ring 71 is provided inside the opening 79, the top end of the first magnetic ring 71 is attracted to the second magnetic ring 72 with opposite poles, a notch 9 is opened on the side surface of the cover body 5, and a rubber strip 8 is placed inside the notch 9 to reduce the noise generated by the vibration when the vehicle presses over the manhole cover, achieving the effect of noise reduction.

[0028] Specifically, first, the staff rotates the rotating rod 4 connected to one end of the cover body 5 to close it, and the rotating rod 4 is rotatably connected to the cover seat 2, so that the pressure plate 66, which is 5 cm lower than the bottom surface of the cover body 5, first contacts the top surface of the inner seat 3 and is squeezed, so that the pressure plate 66 drives the moving block 67 to slide upward inside the groove, and the moving block 67 drives the tension spring 68 to be pulled and stored. The inclined surface of the top surface of the pressure plate 66 fits the inclined surface of the driven plate 62, so that the pressure plate 66 moves upward and pushes the driven plate 62 linearly, so that the driven plate 62 drives the slider 63 to slide inside the slide groove 65, and the slide groove 65 is connected to the groove 61. The slider 63 drives the spring 64 to stretch and store force, and the driven plate 62 drives the rubber strip 8 connected at one end to move from the inside of the groove 9 to the outside, so that the rubber strip 8 blocks the gap between the cover body 5 and the cover seat 2, reducing the noise generated by the vibration when the vehicle passes over the manhole cover, thereby achieving the effect of noise reduction.

[0029] Embodiment 2:

[0030] See also Figures 4 - 5 The cover body 5 is provided with a pushing structure 6 inside, and the pushing structure 6 includes grooves 61 opened at the four corners of the cover body 5, and a slide groove 65 is embedded inside the groove 61. A slider 63 is slidably connected inside the slide groove 65, and a spring 64 is provided at one end of the slider 63, and one end of the spring 64 is connected to the slide groove 65. A driven plate 62 is provided on one side of the slider 63, and the driven plate 62 is a right-angled trapezoid, and one side of the driven plate 62 is an inclined surface. A groove is also provided inside the cover body 5, and a moving block 67 is slidably connected inside the groove. A tension spring 68 is provided at one end of the moving block 67, and one end of the tension spring 68 is connected to the groove. A pressing plate 66 is provided on one side of the moving block 67, and the pressing plate 66 is a right-angled trapezoid, and the top of the pressing plate 66 is an inclined surface. The inclined surface of the pressing plate 66 matches the inclined surface of the driven plate 62, and the bottom end of the pressing plate 66 is 5 cm lower than the bottom surface of the cover body 5, which makes the manhole cover more stable and prevents vehicles from rolling over and jumping.

[0031] When the locking cam 75 is in the unlocking state, the locking cam 77 is locked and the locking cam 78 is locked.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing ductile iron manhole cover, comprising a base (1), a cover seat (2) arranged at the top of the base (1), an inner seat (3) arranged inside the cover seat (2), a rotating rod (4) rotatably connected to one side of the cover seat (2), and a cover body (5) arranged on one side of the rotating rod (4), characterized in that: A limiting structure (7) is arranged inside the cover seat (2); The limiting structure (7) comprises a long groove formed inside the cover seat (2), a rotating rod (76) being rotatably connected inside the long groove, a rotating plate (75) being provided on the surface of the rotating rod (76), a clamping block (77) being provided at one end of the rotating plate (75), a clamping groove (78) being formed on the bottom surface of the cover body (5), and a moving rod (74) being movably connected inside the cover seat (2).

2. The noise-reducing ductile iron manhole cover according to claim 1, characterized in that: A circular plate (73) is arranged at the top end of the abutting rod (74), and a second magnetic ring (72) is arranged at the bottom end of the circular plate (73).

3. The noise reduction ductile iron manhole cover according to claim 1, characterized in that: The top surface of the cover seat (2) is provided with an opening (79), and the circular plate (73) and the opening (79) are of equal size.

4. The noise-reducing ductile iron manhole cover according to claim 3 is characterized in that: A magnetic ring 1 (71) is arranged inside the opening (79), and a magnetic ring 2 (72) is attracted at the top of the magnetic ring 1 (71) with opposite poles.

5. The noise-reducing ductile iron manhole cover according to claim 4, characterized in that: A notch (9) is provided on the side of the cover body (5), and a rubber strip (8) is placed inside the notch (9).

6. The noise reduction ductile iron manhole cover according to claim 1, characterized in that: The cover body (5) is provided with a pushing structure (6) inside, the pushing structure (6) comprises grooves (61) opened at four corners of the cover body (5), a slide groove (65) is embedded inside the groove (61), a slider (63) is slidably connected inside the slide groove (65), a spring (64) is provided at one end of the slider (63), and one end of the spring (64) is connected to the slide groove (65).

7. The noise reduction ductile iron manhole cover according to claim 6, characterized in that: A driven plate (62) is provided on one side of the sliding block (63); the driven plate (62) is in the shape of a right-angled trapezoid, and one side of the driven plate (62) is an inclined surface.

8. The noise-reducing ductile iron manhole cover according to claim 7, characterized in that: The cover body (5) is also provided with a groove inside, and a moving block (67) is slidably connected inside the groove. A tension spring (68) is provided at one end of the moving block (67), and one end of the tension spring (68) is connected to the groove. A pressing plate (66) is provided on one side of the moving block (67). The pressing plate (66) is a right-angled trapezoid, and the top of the pressing plate (66) is an inclined surface. The inclined surface of the pressing plate (66) is matched with the inclined surface of the driven plate (62), and the bottom end of the pressing plate (66) is 5 cm lower than the bottom surface of the cover body (5).

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