A type of buffer-type anti-settlement manhole cover

Abstract

This utility model discloses a buffer-type anti-settlement manhole cover, comprising a ductile iron manhole cover and a ductile iron base installed on the manhole shaft. The ductile iron manhole cover is disposed on the end face of the ductile iron base. A positioning ring is installed on the inner side of the ductile iron manhole cover, and the positioning ring is inserted into the interior of the ductile iron base. Multiple positioning blocks are installed on the inner ring surface of the positioning ring, and each positioning block has a positioning opening in the middle. Each positioning opening has a buffer positioning plate, one end of which is inserted into a corresponding positioning groove, and the other end is bent to form a pressure-bearing part. This utility model has a simple structure. The anti-settlement cast iron ring, ductile iron manhole cover, and ductile iron base increase strength and reduce the probability of settlement. When vehicles drive over the ductile iron manhole cover, the rubber buffer ring and buffer positioning plate provide a buffering function, avoiding direct impact and noise, and also improving the anti-settlement effect.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically to a buffer-type anti-settlement manhole cover. Background Technology

[0002] Ductile iron manhole covers are a type of ductile iron product. Ductile iron is produced by spheroidizing and inoculating to obtain spheroidal graphite, which effectively improves the mechanical properties of cast iron, especially its plasticity and toughness, thus achieving a strength higher than that of carbon steel.

[0003] Currently, all types of sewer manholes use reinforced concrete covers for their openings. However, the rigidity of these covers is inconsistent with the surrounding road surface structure. The pressure from vehicles driving for extended periods causes the low-strength padding material under the cast iron cover to crush, and the unsecured manhole covers to slide in the direction of traffic. Combined with the repeated impacts from vehicles, this ultimately leads to the settlement of the manhole covers. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a buffer-type anti-settlement manhole cover that is easy to install and disassemble. The buffer positioning plate and rubber buffer ring can play a buffering function, thereby solving the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a buffer-type anti-settlement manhole cover, comprising a ductile iron manhole cover and a ductile iron base installed on the manhole shaft. The ductile iron manhole cover is disposed on the end face of the ductile iron base. A positioning ring is installed on the inner side of the ductile iron manhole cover. The positioning ring is inserted into the interior of the ductile iron base. Multiple positioning blocks are installed on the inner ring surface of the positioning ring. Each positioning block has a positioning port that penetrates the positioning block and the positioning ring in the middle. Each inner ring surface of the ductile iron base has a positioning groove opposite to the positioning port. Each positioning port has a buffer positioning plate. One end of each buffer positioning plate is inserted into the corresponding positioning groove, and the other end is bent to form a pressure-bearing part.

[0006] A fixing post is installed at the center of the inner side of the ductile iron manhole cover. Multiple push plates are installed on the outer ring surface of the fixing post through hinges. One end of the push plate is bent and extends to the outside of the pressure part to form a squeezing part. A squeezing ring is fitted on the fixing post.

[0007] As a preferred technical solution, the outer ring surface of the positioning ring does not contact the inner ring surface of the ductile iron base. The outer ring surface of the positioning ring is provided with multiple ball grooves, which are evenly distributed in a ring structure. A ball is movably installed in each ball groove, and a part of the ball extends to the outside through the opening of the ball groove and contacts the inner ring surface of the ductile iron base.

[0008] As a preferred technical solution, a groove is vertically provided on the outer wall of the fixed column, and a slider is installed on the inner ring surface of the compression ring opposite the groove. The slider is slidably disposed in the groove, and a first compression spring is installed between the slider and the groove.

[0009] As a preferred technical solution, the opening of the extrusion ring facing the buffer positioning plate is recessed to form a flow guide with an annular structure, and the flow guide is located outside the push plate.

[0010] As a preferred technical solution, the ductile iron manhole cover is provided with multiple water inlet holes, and the ductile iron manhole cover is provided with a through hole directly opposite the extrusion ring.

[0011] As a preferred technical solution, a frame is installed on each buffer positioning plate, and multiple second compression springs are installed between the frame and the positioning block. Each second compression spring is covered with a rubber sleeve.

[0012] As a preferred technical solution, the buffer positioning plates are all made of spring steel.

[0013] As a preferred technical solution, an annular groove is provided on the end face of the ductile iron base groove facing the ductile iron manhole cover, and a rubber buffer ring is provided in the annular groove. One end face of the rubber buffer ring is set to abut against the inner surface of the ductile iron manhole cover.

[0014] As a preferred technical solution, an anti-settlement cast iron ring is installed on the outside of the ductile iron base.

[0015] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The strength is increased by the anti-settlement cast iron ring, ductile iron manhole cover and ductile iron base, which reduces the probability of settlement. When a vehicle drives over the ductile iron manhole cover, the rubber buffer ring and buffer positioning plate provide a buffer function, avoiding direct impact and noise, and improving the anti-settlement effect. In addition, the ductile iron manhole cover is easy to install and disassemble, and the rubber buffer ring can be quickly replaced. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the ductile iron manhole cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the present invention after the ductile iron manhole cover has been removed.

[0021] The components are as follows: 1. Well shaft; 2. Ductile iron base; 3. Ductile iron well cover; 4. Anti-settlement cast iron ring; 5. Water inlet hole; 6. Through hole; 7. Positioning block; 8. Buffer positioning plate; 9. Frame; 10. Second compression spring; 11. Extrusion ring; 12. Push plate; 13. Fixed column; 14. Positioning ring; 15. Ball; 16. Extrusion part; 17. Pressure-bearing part; 18. Rubber buffer ring; 19. Slider; 20. First compression spring. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0024] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a buffer-type anti-settlement manhole cover, including a ductile iron manhole cover 3 and a ductile iron base 2 installed on a manhole cylinder 1. The ductile iron manhole cover 3 is disposed on the end face of the ductile iron base 2. A positioning ring 14 is installed on the inner side of the ductile iron manhole cover 3. The positioning ring 14 is inserted into the interior of the ductile iron base 2. Multiple positioning blocks 7 are installed on the inner ring surface of the positioning ring 14. The positioning blocks 7 are provided with a positioning port through the positioning block 7 and the positioning ring 14 in the middle. The inner ring surface of the ductile iron base 2 is provided with a positioning groove opposite to the positioning port. A buffer positioning plate 8 is provided in the positioning port. One end of the buffer positioning plate 8 is inserted into the corresponding positioning groove, and the other end is bent to form a pressure-bearing part 17.

[0026] A fixing post 13 is installed at the center of the inner side of the ductile iron manhole cover 3. Multiple push plates 12 are installed on the outer ring surface of the fixing post 13 through hinges. One end of the push plate 12 is bent and extends to the outside of the pressure part 17 to form a squeezing part 16. A squeezing ring 11 is sleeved on the fixing post 13.

[0027] In this embodiment, the outer ring surface of the positioning ring 14 does not contact the inner ring surface of the ductile iron base 2. The outer ring surface of the positioning ring 14 is provided with multiple ball grooves. The multiple ball grooves are evenly distributed in a ring structure. A ball 15 is movably installed in each ball groove. A part of the ball 15 extends to the outside along the opening of the ball groove and contacts the inner ring surface of the ductile iron base 2.

[0028] The positioning ring positions the ductile iron manhole cover, preventing it from moving laterally or longitudinally, allowing it to move only up and down. The sphere reduces friction between the manhole cover and its base, enabling smoother up-and-down movement and providing a cushioning effect.

[0029] In this embodiment, a groove is vertically provided on the outer wall of the fixed column 13. A slider 19 is installed on the inner ring surface of the extrusion ring 11 opposite the groove. The slider 19 is slidably disposed in the groove. A first compression spring 20 is installed between the slider 19 and the groove. The extrusion ring can be positioned by the slider, so that the extrusion ring can only move up and down along the groove, which increases the positioning effect of the extrusion ring.

[0030] In this embodiment, the opening of the compression ring 11 facing the buffer positioning plate 8 is recessed to form a flow guide with an annular structure, and the flow guide is disposed on the outside of the push plate 12.

[0031] In this embodiment, the ductile iron manhole cover 3 is provided with multiple water inlet holes 5, and the ductile iron manhole cover 3 is provided with a through hole 6 opposite to the extrusion ring 11.

[0032] In this embodiment, a frame 9 is installed on each buffer positioning plate 8, and multiple second compression springs 10 are installed between the frame 9 and the positioning block 7. The second compression springs 10 are all covered with rubber sleeves to reduce the rapid rusting of the second compression springs caused by moisture. The first compression springs are also covered with rubber sleeves, which also serve a protective function.

[0033] In this embodiment, the buffer positioning plates 8 are all made of spring steel, which enables the buffer positioning plates to bend and deform, and can automatically return to their original position after bending, so as to achieve a buffering effect.

[0034] In this embodiment, an annular groove is provided on one end face of the ductile iron base 2 facing the ductile iron manhole cover 3, and a rubber buffer ring 18 is provided in the annular groove. One end face of the rubber buffer ring 18 is in contact with the inner side of the ductile iron manhole cover 3.

[0035] In this embodiment, an anti-settlement cast iron ring 4 is installed on the outside of the ductile iron base 2, which increases the connection area between the base and the road surface, thus helping the device to prevent settlement.

[0036] When the ductile iron manhole cover is under pressure, it will squeeze the rubber buffer ring, causing the rubber buffer ring to deform. The ductile iron manhole cover also has a certain descent function, allowing the ductile iron manhole cover to descend stably along the inner wall of the ductile iron base through the positioning ring. During the descent, it can squeeze the buffer positioning plate, causing the buffer positioning plate to bend. Through the buffer positioning plate and the rubber buffer ring, a buffering effect can be achieved, increasing the anti-settlement effect.

[0037] When it is necessary to disassemble the ductile iron manhole cover, any column is prepared. The column can pass through the through hole and press down the extrusion ring, so that the extrusion ring descends along the slide groove. During the descent, the guide part can extrude the push plate inward, so that the push plate moves inward around the hinge. The movement of the push plate drives the extrusion part. The extrusion part moving inward can push the pressure part, and the pressure part can simultaneously drive the buffer positioning plate, so that the buffer positioning plate moves along the positioning port until the buffer positioning plate moves out of the positioning groove. After the buffer positioning plate is no longer blocked, the ductile iron manhole cover can be directly taken out upward.

[0038] After the obstruction of the ductile iron manhole cover is removed, the rubber buffer ring can be directly replaced to ensure the subsequent buffering quality.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A cushioned anti-settling well lid, characterized by: The ductile iron manhole cover (3) and the ductile iron base (2) installed on the manhole (1) are included. The ductile iron manhole cover (3) is set on the end face of the ductile iron base (2). A positioning ring (14) is installed on the inner side of the ductile iron manhole cover (3). The positioning ring (14) is inserted into the interior of the ductile iron base (2). Multiple positioning blocks (7) are installed on the inner ring surface of the positioning ring (14). The positioning blocks (7) are provided with a positioning port that penetrates the positioning block (7) and the positioning ring (14) in the middle. The inner ring surface of the ductile iron base (2) is provided with a positioning groove at the positioning port. A buffer positioning plate (8) is provided in the positioning port. One end of the buffer positioning plate (8) is inserted into the corresponding positioning groove, and the other end is bent to form a pressure part (17). A fixing post (13) is installed at the center of the inner side of the ductile iron manhole cover (3). Multiple push plates (12) are installed on the outer ring surface of the fixing post (13) through hinges. One end of the push plate (12) is bent and extends to the outside of the pressure part (17) to form a squeezing part (16). A squeezing ring (11) is fitted on the fixing post (13).

2. The cushioned anti-settling well lid according to claim 1, wherein: The outer ring surface of the positioning ring (14) does not contact the inner ring surface of the ductile iron base (2). The outer ring surface of the positioning ring (14) is provided with multiple ball grooves. The multiple ball grooves are evenly distributed in a ring structure. A ball (15) is movably installed in each ball groove. A part of the ball (15) extends to the outside along the opening of the ball groove and contacts the inner ring surface of the ductile iron base (2).

3. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: A groove is vertically provided on the outer wall of the fixed column (13). A slider (19) is installed on the inner ring surface of the compression ring (11) opposite the groove. The slider (19) is slidably disposed in the groove. A first compression spring (20) is installed between the slider (19) and the groove.

4. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: The opening of the extrusion ring (11) facing the buffer positioning plate (8) is recessed to form a flow guide with an annular structure, and the flow guide is located outside the push plate (12).

5. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: The ductile iron manhole cover (3) is provided with multiple water inlet holes (5), and the ductile iron manhole cover (3) is provided with a through hole (6) directly opposite the extrusion ring (11).

6. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: Each buffer positioning plate (8) is equipped with a frame (9), and multiple second compression springs (10) are installed between the frame (9) and the positioning block (7). Each second compression spring (10) is equipped with a rubber sleeve.

7. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: The buffer positioning plates (8) are all made of spring steel.

8. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: The ductile iron base (2) has an annular groove on one end face facing the ductile iron manhole cover (3), and a rubber buffer ring (18) is provided in the annular groove. One end face of the rubber buffer ring (18) is in contact with the inner side of the ductile iron manhole cover (3).

9. The buffer-type anti-settlement manhole cover according to claim 1, characterized in that: The ductile iron base (2) is fitted with an anti-settlement cast iron ring (4).

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