Well lid for municipal road

Abstract

The utility model discloses a well lid for municipal roads. The well lid comprises a base and a well lid body, the base comprises a base body, and the well lid comprises a well lid body. A containing groove is formed in the upper end of an inner ring of the base body, a limiting groove is formed in the middle section of the inner ring of the base body, the well lid body is placed in the containing groove, multiple sets of vertical plates are arranged at the lower end of the well lid body in the circumferential direction in an array mode, every two vertical plates are oppositely arranged, and guide holes are formed in the vertical plates. The guide holes in the two oppositely-arranged vertical plates are oppositely arranged, the guide holes and the limiting grooves are located at the same height, the limiting mechanism is arranged at the lower end of the well lid body and comprises a limiting assembly and a buoyancy plate, the limiting assembly is arranged between the two oppositely-arranged vertical plates, and the buoyancy plate is arranged between the limiting assembly and the vertical plates. The buoyancy plate is fixedly connected with the lower end of the limiting assembly through a bolt. The utility model solves the technical problem that the well lid is easy to separate from the base body under the impact of water flow.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers for municipal roads, in particular to a manhole cover for municipal roads. Background Art

[0002] With the acceleration of urbanization and the continuous improvement of municipal infrastructure construction, various pipeline networks under municipal roads are intricate. Manhole covers, as important interfaces and protective devices for these underground facilities, play a vital role in ensuring road safety, ensuring the normal operation and maintenance of underground facilities, and maintaining urban landscapes.

[0003] Manhole covers can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. according to the material. They are generally round. In the general sense, manhole covers are a general term, which includes manhole covers and manhole cover base bodies. Common manhole covers are generally divided into two types. One is that the manhole cover and the base body fixed in cement are hinged to each other. This type of manhole cover has an anti-theft function to prevent the loss of the manhole cover. The other is that the manhole cover and the base body fixed in cement are in a separated state (separate manhole cover), that is, the manhole cover is only placed in the base body. The latter is more convenient to replace and use.

[0004] However, this type of manhole cover and base body has some disadvantages when in use. During the rainy season in the city, due to the heavy rainfall, the amount of water in the sewer pipe is usually too large. Therefore, the manhole covers in some areas will be separated from the base body under the impact of the sewer water flow. The detached manhole covers cannot prevent people or objects from falling, and there are certain safety hazards. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies, provide a manhole cover for municipal roads, and solve the technical problem in the technical field of manhole covers for municipal roads that the manhole cover and the base body are easily separated under the impact of water flow.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides a manhole cover for municipal roads, comprising:

[0007] Base, manhole cover; the base includes a base body; the manhole cover includes a manhole cover body; a placement groove is provided at the upper end of the inner circle of the base body; a limiting groove is provided in the middle section of the inner circle of the base body; the manhole cover body is placed in the placement groove; a plurality of groups of vertical plates are arranged in a circumferential array at the lower end of the manhole cover body; two of the vertical plates are arranged oppositely; guide holes are provided on the vertical plates; the guide holes on the two oppositely arranged vertical plates are arranged oppositely; the guide holes and the limiting groove are at the same height;

[0008] A limiting mechanism is arranged at the lower end of the manhole cover body; the limiting mechanism comprises a limiting assembly and a buoyancy plate; the limiting assembly is arranged between the two relatively arranged vertical plates; the buoyancy plate is fixedly connected to the lower end of the limiting assembly by bolts.

[0009] Compared with the prior art, the beneficial effects of the utility model include:

[0010] 1. The municipal road manhole cover provided by the utility model is provided with components such as a buoyancy plate, a limiting mechanism and a manhole cover body. The buoyancy plate and the limiting mechanism cooperate with each other so that the sewer water flow first impacts the buoyancy plate. Under the action of the impact, the buoyancy plate drives the push frame to move upward, thereby reducing the distance between the buoyancy plate and the manhole cover body.

[0011] 2. The utility model provides a manhole cover for municipal roads. By setting a pushing hole, a hollow roller and a transverse limit block, when the pushing frame approaches the manhole cover body, the pushing hole squeezes the hollow roller, so that the transverse limit block moves toward the direction of the limit groove under the action of the interaction force and is stuck inside the limit groove to fix the manhole cover body, thereby ensuring that the manhole cover body will not be separated from the base under the impact of sewer water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a manhole cover for a municipal road provided by the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the manhole cover for municipal roads provided by the utility model. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the manhole cover for municipal roads provided by the utility model. Figure 2 ;

[0015] Figure 4 It is a schematic diagram of the structure of the manhole cover body in the municipal road manhole cover provided by the utility model;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the buoyancy plate in the manhole cover for municipal roads provided by the utility model;

[0017] Figure 6 The utility model is a schematic diagram of the explosion structure of a push frame in a manhole cover for a municipal road provided by the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Base; 11. Base body; 12. Placement slot; 13. Limiting slot; 2. Manhole cover; 21. Manhole cover body; 22. Vertical plate; 23. Guide hole; 3. Push frame; 31. Vertical column; 32. Threaded column; 33. Main frame; 34. Push hole; 4. Horizontal limit block; 42. Threaded hole; 5. Hollow roller; 6. Fixing screw; 7. Buoyancy plate; 71. Hollow buoyancy block; 72. Ring plate; 73. Mounting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 This embodiment provides a manhole cover for a municipal road, including: a base 1 and a manhole cover 2.

[0024] Furthermore, the base 1 includes a base body 11, and the manhole cover 2 includes a manhole cover body 21.

[0025] Furthermore, a placement groove 12 is provided at the upper end of the inner circle of the base body 11, and a limiting groove 13 is provided in the middle section of the inner circle of the base body 11. The manhole cover body 21 is placed in the placement groove 12, and a plurality of groups of vertical plates 22 are provided in a circumferential array at the lower end of the manhole cover body 21. Two of the vertical plates 22 are arranged opposite to each other, and guide holes 23 are provided on the vertical plates 22. The guide holes 23 on the two oppositely arranged vertical plates 22 are arranged opposite to each other, and the guide holes 23 and the limiting groove 13 are at the same height.

[0026] Preferably, the function of the limit groove 13 is: when the water flow impacts the buoyancy plate, the impact force drives the lateral limit block 4 to move toward the limit groove 13 through the limit assembly until the lateral limit block 4 is inserted into the limit groove 13 to prevent the manhole cover body 21 from separating from the base body 11.

[0027] Preferably, the cross section of the guide hole 23 is rectangular, and the cross section area of ​​the guide hole 23 is larger than the transverse limit block 4 , so as to facilitate the transverse limit block 4 to move in the guide hole 23 .

[0028] Specifically, the placement groove 12 is used to place the manhole cover body 21 and limit the position of the manhole cover body 21.

[0029] Specifically, in this embodiment, four groups of the vertical plates 22 are provided at the lower end of the manhole cover body 21 ; and each group of the vertical plates 22 is provided with two vertical plates 22 .

[0030] Furthermore, the limiting mechanism is disposed at the lower end of the manhole cover body 21, and the limiting mechanism includes a limiting assembly and a buoyancy plate. The limiting assembly is disposed between the two relatively arranged vertical plates 22, and the buoyancy plate is fixedly connected to the lower end of the limiting assembly by bolts.

[0031] Furthermore, the limiting assembly includes a pushing frame 3, a lateral limiting block 4 and a hollow roller 5. The pushing frame 3 includes a column 31. The top and bottom ends of the column 31 are respectively provided with a main frame body 33 and a threaded column 32. The column 31 is arranged between two relatively arranged vertical plates 22.

[0032] Furthermore, threaded holes 42 are provided on both sides of the transverse limit block 4, and a push hole 34 is provided on the main frame body 33. The push hole 34 is arranged at an angle with the horizontal plane, and the push hole 34 is an inclined hole.

[0033] Furthermore, the transverse limit block 4 is placed in the two relatively arranged guide holes 23, and the transverse limit block 4 is also placed in the main frame body 33. The main frame body 33 is fixedly connected to the transverse limit block 4 by a fixing bolt, and the fixing bolt passes through the push hole 34 and is fixedly connected with the threaded hole 42 of the transverse limit block 4.

[0034] Furthermore, the fixing bolt is provided with the hollow roller 5 in an annular circumferential sleeve, and the hollow roller 5 is placed in the pushing hole 34 and is slidably connected to the main frame body 33 .

[0035] Furthermore, the buoyancy plate includes a hollow buoyancy block 71 , and an annular plate 72 is provided around the circumference of the hollow buoyancy block 71 . The annular plate 72 is provided with a plurality of mounting holes 73 , and the threaded column 32 is fixedly connected to the buoyancy plate by bolts through the mounting holes 73 .

[0036] Furthermore, when the lower end of the buoyancy plate is filled with water, the lateral limit block 4 moves toward the limit groove 13 under the action of the buoyancy generated by the lower end of the buoyancy plate until it is inserted into the limit groove 13 to achieve a limited and fixed connection between the base body 11 and the manhole cover body 21.

[0037] Specifically, the hollow drum 5 is sleeved on the outside of the fixing screw 6. At this time, the hollow drum 5 is in a movable state, that is, it can rotate with the fixing screw 6 as the center of the circle. The transverse limit block 4 is connected to the push frame 3 under the cooperation of the fixing screw 6 and the hollow drum 5. When the push frame 3 moves upward, the push hole 34 and the hollow drum 5 produce relative displacement, and an interaction force is generated between the two. Since the push hole 34 is an inclined hole, the interaction force has a transverse component. At this time, the transverse limit block 4 moves toward the direction close to the limit groove 13 under the action of the transverse thrust until it is inserted into the limit groove 13, and the manhole cover body 21 is separated from the base body 11. At the same time, since the buoyancy plate is connected to the push frame 3 by screws, the buoyancy plate can be preferentially forced to move upward when the sewer water flow impacts, and the hollow buoyancy block 71 plays a role in increasing buoyancy.

[0038] Specifically, when the lateral limit is inserted into the limit groove 13, the manhole cover body 21 is locked with the base body 11, so that the manhole cover body 21 will not be separated from the base body 11 under the impact of water flow. When there is no water flow impact and the staff wants to open the manhole cover body 21, it can be opened directly. During this process, the locking mechanism is in an unlocked state, that is, the manhole cover body 21 can be separated from the base body 11.

[0039] The utility model also provides a method for installing a manhole cover for a municipal road, and the specific steps are as follows:

[0040] S1, placing the base body 11 in a cement ground and fixing it by cement pouring or the like;

[0041] S2, after the base body 11 is fixed, the limiting mechanism is installed between the vertical plates 22 and fixedly connected to the buoyancy plate by bolts;

[0042] S3, placing the installed manhole cover body 21, the limiting mechanism and the buoyancy plate inside the placement groove 12 of the base body 11, and the installation is completed.

[0043] Working principle: The municipal road manhole cover provided by the utility model includes a base and a manhole cover, the base includes a base body 11, and the manhole cover includes a manhole cover body 21; a placement groove 12 is provided at the upper end of the inner circle of the base body 11, and a limiting groove 13 is provided in the middle section of the inner circle of the base body 11, and the manhole cover body 21 is placed in the placement groove 12, and a plurality of groups of vertical plates 22 are arranged in a circumferential array at the lower end of the manhole cover body 21, and two of the vertical plates 22 are arranged opposite to each other, and guide holes 23 are provided on the vertical plates 22, and the guide holes 23 on the two oppositely arranged vertical plates 22 are arranged opposite to each other, and the guide holes 23 and the limiting groove 13 are at the same height, and the limiting mechanism is placed at the lower end of the manhole cover body 21, and the limiting mechanism includes a limiting assembly and a buoyancy plate, and the limiting assembly is placed between the two oppositely arranged vertical plates 22, and the buoyancy plate is fixedly connected with the lower end bolts of the limiting assembly.

[0044] Specifically, when the water flow hits the buoyancy plate, the impact force drives the pushing frame 3 to move upward. At this time, the pushing hole 34 and the hollow drum 5 produce relative displacement, and an interaction force is generated between the two. Since the pushing hole 34 is an inclined hole, the interaction force has a lateral component. At this time, the lateral limit block 4 moves toward the direction close to the limit groove 13 under the action of the lateral thrust until it is inserted into the limit groove 13. When the lateral limit is inserted into the limit groove 13, the manhole cover body 21 is stuck with the base body 11, so that the manhole cover body 21 will not be separated from the base body 11 under the action of the water flow impact.

[0045] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A manhole cover for a municipal road, characterized in that: include: Base, manhole cover; the base includes a base body; the manhole cover includes a manhole cover body; a placement groove is provided at the upper end of the inner circle of the base body; a limiting groove is provided in the middle section of the inner circle of the base body; the manhole cover body is placed in the placement groove; a plurality of groups of vertical plates are arranged in a circumferential array at the lower end of the manhole cover body; two of the vertical plates are arranged oppositely; guide holes are provided on the vertical plates; the guide holes on the two oppositely arranged vertical plates are arranged oppositely; the guide holes and the limiting groove are at the same height; A limiting mechanism is arranged at the lower end of the manhole cover body; the limiting mechanism comprises a limiting assembly and a buoyancy plate; the limiting assembly is arranged between the two relatively arranged vertical plates; the buoyancy plate is fixedly connected to the lower end of the limiting assembly by bolts.

2. The municipal road manhole cover according to claim 1, characterized in that: The limiting assembly includes a pushing frame, a transverse limiting block and a hollow roller; the pushing frame includes a column; the top and bottom ends of the column are respectively provided with a main frame body and a threaded column; the column is arranged between two oppositely arranged vertical plates.

3. The municipal road manhole cover according to claim 2, characterized in that: Threaded holes are provided on both sides of the transverse limit block; a push hole is provided on the main frame; the push hole is arranged at an angle with the horizontal plane; and the push hole is an inclined hole.

4. The manhole cover for municipal roads according to claim 3, characterized in that: The transverse limit block is placed in the two oppositely arranged guide holes; the transverse limit block is also placed in the main frame; the main frame is fixedly connected to the transverse limit block by a fixing bolt; the fixing bolt passes through the push hole and is fixedly connected with the threaded hole of the transverse limit block.

5. The municipal road manhole cover according to claim 4, characterized in that: The hollow roller is disposed in the annular circumferential sleeve of the fixing bolt; the hollow roller is disposed in the pushing hole and is slidably connected with the main frame.

6. The manhole cover for municipal roads according to claim 5, characterized in that: The buoyancy plate comprises a hollow buoyancy block; an annular plate is arranged around the hollow buoyancy block; the annular plate is provided with a plurality of mounting holes; the threaded column is fixedly connected with the buoyancy plate bolts through the mounting holes.

7. The manhole cover for municipal roads according to claim 6, characterized in that: When the lower end of the buoyancy plate is filled with water, the transverse limit block moves toward the limit groove under the buoyancy generated by the lower end of the buoyancy plate until it is inserted into the limit groove to achieve the limited fixed connection between the base body and the manhole cover body.

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