Silent nodular cast iron well lid

By improving the connection structure of the manhole cover and utilizing the coordinated design of components such as the connecting frame and threaded rod, the noise problem and theft risk of the manhole cover under stress have been solved, achieving improved noise reduction and enhanced anti-theft performance.

CN223634069UActive Publication Date: 2025-12-05SHANXI YUANSHENG CASTING & FORGING IND CO LTD
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Patent Information

Application Number
CN202423161671.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-05
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing silent ductile iron manhole covers still produce noise when stepped on by external forces, and there are gaps caused by impacts between the manhole cover and the installation location, which affect the noise reduction effect and pose a risk of the manhole cover being stolen.

Method used

The design incorporates a connecting frame, threaded rod, extension tube, insertion rod, limit insertion rod, fixing plate, anti-theft lock, extension rod, connecting ring, anti-detachment limit plate, installation tube, and through groove to prevent the manhole cover from shaking during the tightening process. It is fixed with bolts and uses an anti-theft lock to enhance its anti-theft properties.

Benefits of technology

It effectively avoids impact noise between the manhole cover and the manhole cover connector, improves the anti-theft effect, ensures the manhole cover is installed firmly, reduces noise, and enhances anti-theft performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223634069U_ABST
    Figure CN223634069U_ABST
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Abstract

The utility model discloses a silent nodular cast iron well lid which comprises a well lid connecting base, a well lid body is hinged to one end of the interior of the well lid connecting base, a plurality of sets of rubber cushion plates are evenly arranged at the bottom of the well lid body, a supporting ring is arranged on the inner side of the well lid connecting base, and a plurality of bolts are arranged at the top of the supporting ring. Through cooperation of the connecting frame, the threaded rod, the extension pipe, the insertion rod, the limiting insertion rod, a fixing plate, an anti-theft lock, an extension rod, a connecting ring, an anti-falling limiting plate, a mounting pipe and a through groove, when the top of the well lid connecting base is covered with a well lid, the top of the well lid body can be pressed, the well lid body cannot shake when subjected to pressure, and therefore the well lid is prevented from falling off. According to the anti-theft well lid, noise caused by collision between the well lid body and the well lid connecting base is avoided, the bolts are installed in the well lid, meanwhile, in the locking process of the well lid, the well lid can be prevented from being directly opened by strangers, the well lid can be effectively prevented from being stolen, and the anti-theft effect of the anti-theft well lid is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of well lid, concretely is a mute nodular cast iron well lid. BACKGROUND

[0002] On the street of the city, in order to manage sewer mouth, basically each position is installed well body, and in order to prevent people from falling into the well, the top basically installs well lid to carry out protection, avoids the pedestrian who plays to fall into it.

[0003] The utility model discloses a mute nodular cast iron well lid, including well frame, the center of well frame top is fixedly arranged with well frame, the outer ring of well frame top is opened with a plurality of evenly distributed sewer through -hole, the bottom of well frame is fixedly arranged with well pedestal, the center of well frame top is opened with the water release through cavity that communicates with well pedestal, the one side of well frame top is hinged with top cover, the inboard of top cover is fixedly arranged with mute rubber ring, the utility model discloses a mute nodular cast iron well lid, when the nodular cast iron well lid is treaded extruded by external force, can buffer through damping spring and mute rubber ring, can reduce the noise that well lid collision generates greatly, is more environmental protection, and the anticorrosive ability is strong, and the antiskid performance is excellent, is more safe and reliable, when using in some special environment, can gather the impact force of water by using the anti -block inclined plate, thereby drive anti -block rotation rod rotation, can effectively reduce its congestion phenomenon.

[0004] But the device is by spring and rubber shock absorption to reduce noise, but like this carries out the connection, and the well lid still can appear some gaps with the position of installation, when being pressed down, the well lid can appear the impact with the position of installation, and further produce noise, and further influence its mute effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a mute nodular cast iron well lid to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a mute nodular cast iron well lid, including well lid connecting seat, the inside one end of well lid connecting seat is hinged with well lid main body, the bottom of well lid main body is evenly provided with multiple groups of rubber pad, the inboard of well lid connecting seat is equipped with support ring, the top of support ring is equipped with multiple bolts.

[0007] One end of the manhole cover body is provided with a connecting frame, and one end of the top of the manhole cover connecting seat is provided with a connecting groove. The connecting frame is located inside the manhole cover body. The bottom of the connecting frame is provided with a through groove. The bottom of the connecting groove is provided with an installation tube. The installation tube is located inside the through groove. The outside of the installation tube is provided with a connecting ring. The inside of the connecting ring is provided with a threaded rod. The bottom of the threaded rod is provided with an anti-detachment limiting plate. The two sides of the threaded rod are symmetrically provided with extension tubes. The inside of the extension tube is provided with an extension rod. The top of the extension tube is provided with an insertion rod. The bottom of the insertion rod extends into the inside of the insertion rod and the extension rod. The two sides of the top of the threaded rod are symmetrically provided with fixing plates. The insertion rod is located outside the fixing plate. A limiting insertion rod is provided between the two sets of fixing plates. One side of the limiting insertion rod is provided with an anti-theft lock.

[0008] Preferably, the bottom of the outer side of the manhole cover connecting seat is provided with a support plate, and the top of the support plate is provided with multiple sets of weight-reducing holes to facilitate support and enable the manhole cover to be better installed on the top of the well.

[0009] Preferably, the inner side of the connecting ring is provided with a threaded groove, and the threaded rod is located inside the connecting ring, so that the threaded rod can be connected better.

[0010] Preferably, the fixing plate has an insertion hole on one side, the limiting rod is located inside the insertion hole, and the limiting rod has a limiting plate on one side, the diameter of the limiting plate being larger than the diameter of the insertion hole, thereby restricting one end of the limiting rod so that the limiting rod can only be inserted into the interior of the fixing plate at one end.

[0011] Preferably, one end of the limiting rod is provided with a lock hole, and the anti-theft lock is located inside the lock hole, so that the anti-theft lock can be locked at one end of the limiting rod.

[0012] Preferably, the top of the insertion rod is provided with a sliding hole, and the fixing plate is located inside the connecting hole. The top of the extension tube and the top of the extension rod are both provided with connecting holes. The insertion rod enters the interior of the extension rod through the connecting hole, so that the insertion rod can lock the position of the extension rod and restrict it.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the silent ductile iron manhole cover;

[0014] When the well lid is covered on the top of the well lid connecting seat, the top of the well lid body can be compressed, so that the well lid body cannot shake when subjected to pressure, noise caused by the impact between the well lid body and the well lid connecting seat is avoided, the bolts are installed in the well lid, the well lid can be prevented from being directly opened by outsiders during locking, the well lid can be effectively prevented from being stolen, and the anti-theft effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a main view of the connecting frame of the utility model;

[0018] Figure 4 It is a main view of the utility model.

[0019] In the drawing: 1, well lid connecting seat; 2, well lid body; 3, support plate; 4, connecting frame; 5, threaded rod; 6, connecting groove; 7, bolt; 8, rubber pad; 9, support ring; 10, extension pipe; 11, plug rod; 12, limiting plug rod; 13, fixed plate; 14, anti-theft lock; 15, extension rod; 16, connecting ring; 17, anti-dropping limiting plate; 18, mounting pipe; 19, through groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides an embodiment: a mute type nodular cast iron well lid, the bottom of the outside of well lid connecting seat 1 is equipped with support plate 3, the top of support plate 3 is equipped with multiple groups of lightening holes, which facilitates support, so that the well lid can be better installed on the top of the well, one end in well lid connecting seat 1 is hinged with well lid body 2, the bottom of well lid body 2 is uniformly equipped with multiple groups of rubber pad 8, the inside of well lid connecting seat 1 is equipped with support ring 9, the top of support ring 9 is equipped with multiple bolts 7;

[0022] One end of the well lid body 2 is provided with a connecting frame 4, one end of the top of the well lid connecting seat 1 is provided with a connecting groove 6, the connecting frame 4 is located inside the well lid body 2, the bottom of the inside of the connecting frame 4 is provided with a through groove 19, the bottom of the inside of the connecting groove 6 is provided with a mounting pipe 18, the mounting pipe 18 is located inside the through groove 19, the outside of the mounting pipe 18 is provided with a connecting ring 16, the inside of the connecting ring 16 is provided with a threaded rod 5, the inside of the connecting ring 16 is provided with a threaded groove, the threaded rod 5 is located inside the connecting ring 16, so that the threaded rod 5 can be better connected;

[0023] The bottom of the threaded rod 5 is provided with a anti-off limiting plate 17, the two sides of the threaded rod 5 are symmetrically provided with an extension pipe 10, the inside of the extension pipe 10 is provided with an extension rod 15, the top of the extension pipe 10 is provided with a plug rod 11, the bottom of the plug rod 11 extends into the inside of the plug rod 11 and the extension rod 15, the two sides of the top of the threaded rod 5 are symmetrically provided with a fixed plate 13, the top of the plug rod 11 is provided with a sliding hole, and the fixed plate 13 is located inside the connecting hole, the top of the extension pipe 10 and the top of the extension rod 15 are both provided with a connecting hole, the plug rod 11 enters the inside of the extension rod 15 through the connecting hole, so that the plug rod 11 can lock the position of the extension rod 15 and limit it, the plug rod 11 is located outside the fixed plate 13, a limiting plug rod 12 is located between the two groups of fixed plates 13, one side of the fixed plate 13 is provided with a plug hole, the limiting plug rod 12 is located inside the plug hole, one side of the limiting plug rod 12 is provided with a limiting plate, and the diameter of the limiting plate is greater than the diameter of the plug hole, limiting one end of the limiting plug rod 12, so that the limiting plug rod 12 can only be inserted into the inside of the fixed plate 13 at one end, one side of the limiting plug rod 12 is provided with an anti-theft lock 14, one end of the limiting plug rod 12 is provided with a lock hole, the anti-theft lock 14 is located inside the lock hole, which facilitates the anti-theft lock 14 to be locked at one end of the limiting plug rod 12.

[0024] Working principle: in the process of installing the well lid, first, the well lid connecting seat 1 is placed on the top of the well body, then the multiple groups of bolts 7 are screwed on the top of the supporting ring 9, and then the well lid connecting seat 1 is locked to the ground, and then the outer side of the well lid connecting seat 1 is covered with concrete, so that the height of the well lid connecting seat 1 and the ground is kept consistent, when the top of the well body is sealed after installation, first, the well lid main body 2 is covered, so that the connecting frame 4 on the well lid main body 2 is clamped in the connecting slot 6, and the threaded rod 5 on the installation pipe 18 enters the inside of the connecting frame 4 through the through slot 19, at this time, the extension rod 15 is pulled out from the inside of the extension pipe 10, then one end of the plug rod 11 is inserted into the inside of the extension pipe 10 and the extension rod 15, and the other end is clamped to the outside of the fixed plate 13, so as to limit the position of the extension rod 15, then the limiting plug rod 12 is inserted from the side of the fixed plate 13, and the anti-theft lock 14 is locked at the end of the limiting plug rod 12, preventing the limiting plug rod 12 from being pulled out, after the position of the extension rod 15 is limited, when the well lid main body 2 and the connecting frame 4 are turned up, the extension rod 15 limits the connecting frame 4, so that the connecting frame 4 cannot move upward, thereby limiting the well lid main body 2 from being opened, thereby avoiding the opening of the well lid main body 2, at this time, the threaded rod 5 is rotated downward, the threaded rod 5 drives the extension pipe 10 and the extension rod 15 to move downward, then the extension rod 15 presses the connecting frame 4, then the connecting frame 4 drives the well lid main body 2 to press downward, so that the well lid main body 2 is pressed tightly in the inside of the well lid connecting seat 1, thereby avoiding the gap between the well lid connecting seat 1 and the well lid main body 2, thereby avoiding noise when subjected to subsequent downward pressure.

[0025] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims and not by the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0026] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The terms "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A mute type ductile iron manhole cover comprising a manhole cover connecting seat (1), characterized in that: One end of the well lid connecting seat (1) is hinged with a well lid body (2), the bottom of the well lid body (2) is uniformly provided with a plurality of groups of rubber pad plates (8), the inner side of the well lid connecting seat (1) is provided with a supporting ring (9), and the top of the supporting ring (9) is provided with a plurality of bolts (7); One end of the well lid body (2) is provided with a connecting frame (4), one end of the top of the well lid connecting seat (1) is provided with a connecting groove (6), the connecting frame (4) is located in the inside of the well lid body (2), the bottom of the inside of the connecting frame (4) is provided with a through groove (19), the bottom of the inside of the connecting groove (6) is provided with a mounting pipe (18), the mounting pipe (18) is located in the inside of the through groove (19), the outer side of the mounting pipe (18) is provided with a connecting ring (16), the inner side of the connecting ring (16) is provided with a threaded rod (5), the bottom of the threaded rod (5) is provided with an anti-dropping limiting plate (17), both sides of the threaded rod (5) are symmetrically provided with an extension pipe (10), the inside of the extension pipe (10) is provided with an extension rod (15), the top of the extension pipe (10) is provided with a plug rod (11), the bottom of the plug rod (11) extends into the inside of the plug rod (11) and the extension rod (15), both sides of the top of the threaded rod (5) are symmetrically provided with a fixed plate (13), the plug rod (11) is located on the outer side of the fixed plate (13), and a limiting plug rod (12) is arranged between the two groups of fixed plates (13). The side of the limiting plug rod (12) is provided with an anti-theft lock (14).

2. The silent-type ductile iron manhole cover according to claim 1, characterized in that: The bottom of the outer side of the well lid connecting seat (1) is provided with a supporting plate (3), and the top of the supporting plate (3) is provided with a plurality of groups of weight reduction holes.

3. The silent-type ductile iron manhole cover according to claim 1, characterized in that: The inner side of the connecting ring (16) is provided with a threaded groove, and the threaded rod (5) is located on the inner side of the connecting ring (16).

4. The silent-type ductile iron manhole cover according to claim 1, characterized in that: One side of the fixed plate (13) is provided with a plug hole, the limiting plug rod (12) is located in the inside of the plug hole, one side of the limiting plug rod (12) is provided with a limiting plate, and the diameter of the limiting plate is greater than the diameter of the plug hole.

5. The silent-type ductile iron manhole cover according to claim 1, characterized in that: One end of the limiting plug rod (12) is provided with a lock hole, and the anti-theft lock (14) is located in the inside of the lock hole.

6. The silent-type ductile iron manhole cover according to claim 1, characterized in that: The top of the plug rod (11) is provided with a sliding hole, and the fixed plate (13) is located in the connecting hole, the top of the extension pipe (10) and the top of the extension rod (15) are both provided with a connecting hole, and the plug rod (11) enters the inside of the extension rod (15) through the connecting hole. The top of the plug rod (11) is provided with a sliding hole, and the fixed plate (13) is located in the connecting hole, the top of the extension pipe (10) and the top of the extension rod (15) are both provided with a connecting hole, and the plug rod (11) enters the inside of the extension rod (15) through the connecting hole.

Citation Information

Patent Citations

  • Silent nodular cast iron well lid

    CN213805762U