A lifting device and construction method for converting white manhole covers to black manhole covers on municipal roads

Abstract

The present invention provides a device and a construction method for lifting a manhole cover for a municipal road from white to black, and relates to the technical field of municipal engineering, including a main body and an adjusting mechanism, wherein: a supporting structure is fixedly connected to the main body, and the manhole cover is placed on the supporting structure; the adjusting mechanism includes a positioning member and a locking member, the positioning member is movably connected to the main body, and is located below the supporting structure, and the distance between the positioning member on the main body and the supporting structure is adjusted to adjust the height; the locking member is used to fix the positioning member on the main body. The beneficial effects of the present invention are that the road flatness and the manhole wall lightness are more significant, no maintenance is required after the construction is completed, and asphalt concrete can be laid again immediately, which greatly shortens the construction period and has low requirements on the construction personnel, and the construction can be carried out after simple training.

Description

Technical Field

[0001] The invention relates to the technical field of municipal engineering, and in particular to a lifting device for converting a white-to-black manhole cover on a municipal road and a construction method. Background Art

[0002] The drainage system is an important part of urban roads, and sewage wells and rainwater wells are important parts of the drainage system. The implementation of the urban road white-to-black maintenance and renovation project will not only effectively improve the traffic environment of urban roads and enhance the overall image of the city, but also improve the quality of life and living environment of residents.

[0003] In the renovation project of urban roads from white to black, the traditional manhole cover lifting construction is: after the manhole cover is removed, concrete and square bricks are used to build it together to reach the elevation. In this traditional implementation process, if the lifting process of the manhole cover is not strictly controlled, many subsequent problems will arise. In addition, this construction method has many disadvantages, such as long construction period, difficult to control elevation, and strict requirements on workers. Quality problems are prone to occur during construction, which in turn affects the flatness of the road and the insufficient strength of the manhole wall. After the construction is completed, due to the uneven settlement between the construction sections and the weight of the heavy manhole cover, the concrete fails to reach strength in time, which can easily cause large elevation deviations and increase the difficulty of later construction and repair. Summary of the invention

[0004] The purpose of the present invention is to provide a municipal road white-to-black manhole cover lifting device and construction method. The traditional construction method has a long construction period, the elevation is difficult to control, and the requirements for workers are relatively strict. Quality problems are prone to occur during construction, which in turn affect the flatness of the road and the insufficient strength of the manhole wall. After the construction is completed, due to the uneven settlement between the construction sections and the weight of the heavy manhole cover, the concrete fails to reach the strength in time, which can easily cause large elevation deviations and increase the difficulty of later construction and repair. The many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the present invention are detailed as follows.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a municipal road white-to-black manhole cover lifting device, comprising a main body and an adjustment mechanism, wherein:

[0007] A supporting structure is fixedly connected to the main body, and the manhole cover is placed on the supporting structure;

[0008] The adjustment mechanism includes a positioning member and a locking member. The positioning member is movably connected to the main body and is located below the supporting structure. The distance between the positioning member on the main body and the supporting structure is adjusted to adjust the height. The locking member is used to fix the positioning member on the main body.

[0009] Preferably, the main body is configured as a columnar structure, and the columnar structure is configured to include at least a portion of a threaded structure, and the positioning member is connected to the threaded structure.

[0010] Preferably, the locking member is configured as a nut matching the threaded structure.

[0011] Preferably, the main body is configured as a lead screw with a diameter of 16 mm.

[0012] Preferably, the supporting structure is welded to the main body, is arranged perpendicular to the main body, and is located in the upper middle part of the main body.

[0013] Preferably, the supporting structure is configured as a fan-shaped structure.

[0014] Preferably, the supporting structure and the positioning member are both made of 10 mm thick steel plates.

[0015] A method for lifting a municipal road manhole cover from white to black, comprising the following steps:

[0016] S1: first layer of asphalt concrete construction;

[0017] S2: Remove the manhole cover;

[0018] S3: drilling holes in the well wall according to the position of the well cover support hole;

[0019] S4: Install the municipal road white-to-black manhole cover lifting device and adjust the height according to the elevation;

[0020] S5: Fix the manhole cover;

[0021] S6: Filling concrete between the top surface of the well wall and the well seat support;

[0022] S7: Construction of the second layer of asphalt concrete.

[0023] Preferably, the drilling of the well wall in step S3 includes evenly drilling 4 holes with a diameter of 20 mm and a depth of 16 cm according to the positions of the well cover support holes.

[0024] The present invention provides a lifting device and construction method for a manhole cover converted from white to black on a municipal road. Through the cooperation of the main body and the adjustment mechanism, the problem of poor elevation control in the lifting process of the manhole cover converted from white to black on the existing municipal road, which causes the road flatness to not meet the requirements and seriously affects the driving safety, can be adjusted according to the actual construction situation, and the adjustment method is simple, and the requirements for the construction personnel are not high. The construction work can be carried out after simple training, which greatly saves labor costs and construction period. And reduce the hidden dangers of quality risks in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of a municipal road white-to-black manhole cover lifting device of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of a municipal road white-to-black manhole cover lifting device after installation of the present invention;

[0028] Figure 3 It is a structural diagram of the drilling position of the manhole cover support hole.

[0029] In the figure: 1. Main body; 10. Lifting device; 11. Supporting structure; 12. Threaded structure; 2. Adjusting mechanism; 21. Positioning piece; 22. Locking piece; 3. Manhole cover; 31. Manhole cover support hole; 4. Well shaft; 41. Well wall drilling hole; 5. Original concrete pavement. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] Figure 1 Schematic diagram of the structure of this embodiment. Figure 1 As shown, this embodiment provides a municipal road white-to-black manhole cover lifting device 10, including a main body 1 and an adjustment mechanism 2.

[0032] The main body 1 is fixedly connected with a supporting structure 11, and the manhole cover 3 is placed on the supporting structure 11, and the manhole cover 3 is lifted by the adjustment of the adjustment mechanism 2;

[0033] The adjustment mechanism 2 includes a positioning member 21 and a locking member 22. The positioning member 21 is movably connected to the main body 1 and is located below the supporting structure 11. Specifically, when in use, the distance between the positioning member 21 on the main body 1 and the supporting structure 11 is adjusted to adjust the height for lifting the manhole cover 3; the locking member 22 is used to fix the positioning member 21 on the main body 1. After the locking member 22 is locked, the positioning member 21 is firmly connected to the main body 1.

[0034] Through the cooperation of the main body 1 and the adjustment mechanism 2, the problem of poor elevation control during the lifting of the existing municipal road white-to-black manhole cover, which causes the road flatness not to meet the requirements and seriously affects driving safety, can be avoided. The device can be adjusted according to the actual construction situation, and the adjustment method is simple, and the requirements for construction personnel are not high. After simple training, construction work can be carried out, which greatly saves labor costs and construction period. And reduce the hidden dangers of quality risks in the later stage.

[0035] As an optional implementation, Figure 2 Schematic diagram of the structure after installation of this embodiment. Figure 2 As shown, the main body 1 is configured as a columnar structure, and the columnar structure is configured to include at least a portion of a threaded structure 12, and the positioning member 21 is connected to the threaded structure 12. By configuring the main body 1 as a columnar structure, it is convenient to cooperate with the well wall drill hole 41 and the well cover support hole 31.

[0036] Specifically, in this embodiment, the main body 1 is set as a screw with a diameter of 16 mm, and the locking piece is set as a matching nut. Through the combination of the screw and the nut, the stability of the overall device after connection is better, and the overall strength of the lifting device is improved. It can effectively reduce the impact of uneven settlement in the later stage, reduce the risk of road flatness and strength not meeting the requirements in the later stage, and avoid quality risks caused by poor connection strength during and after construction.

[0037] As an optional implementation, the supporting structure 11 is welded to the main body 1 , disposed perpendicularly to the main body 1 , and located in the upper middle portion of the main body 1 . The positioning member 21 is connected to the main body 1 and disposed parallel to the supporting structure 11 .

[0038] Specifically, in this embodiment, the supporting structure 11 is configured as a fan-shaped structure, which is used to adapt to the edge of the manhole cover 3 and can play a good supporting role. In addition, the supporting structure 11 and the positioning member 21 are both made of 10 mm thick steel plates to meet the actual construction requirements.

[0039] Of course, during actual construction and use, the supporting structure 11 and the positioning member 21 can select steel plates of other thicknesses or plates of other materials according to the actual construction environment to ensure a stable connection and a long service life.

[0040] A method for lifting a manhole cover converted from white to black on a municipal road comprises the following steps: S1: construction of the first layer of asphalt concrete; S2: removal of the manhole cover; S3: drilling holes in the manhole wall, according to the positions of the manhole cover support holes, specifically, evenly drilling 4 holes with a diameter of 20 mm and a depth of 16 cm according to the positions of the manhole cover support holes. S4: installing a lifting device 10 for converting a manhole cover from white to black on a municipal road, and adjusting the height according to the elevation; S5: fixing the manhole cover; S6: filling concrete, filling concrete between the top surface of the manhole wall and the manhole support; S7: construction of the second layer of asphalt concrete.

[0041] Solve the common quality problems of traditional construction:

[0042] 1. During the construction of manhole cover lifting, the concrete maintenance strength must meet the requirements. If the elevation is not well controlled, the road flatness will not meet the requirements, which will seriously affect driving safety.

[0043] 2. The concrete maintenance strength during the manhole cover lifting construction did not meet the requirements, and the secondary construction and concrete repair affected the appearance.

[0044] 3. During the manhole cover lifting construction, the concrete curing strength did not meet the requirements, and secondary construction was carried out with asphalt concrete for repair. The later asphalt surface layer fell off due to the on-site asphalt mixing not meeting the requirements or the insufficient power of the compaction machinery.

[0045] The beneficial effects of the present invention are:

[0046] 1. Due to the high strength of the lifting bracket, it can effectively reduce the impact of uneven settlement in the later stage, reduce the risk of road flatness and strength not meeting the requirements in the later stage, and the road flatness and well wall lightness are more significant.

[0047] 2. After the construction is completed, no maintenance is required, and the secondary laying of asphalt concrete can be carried out immediately, which greatly shortens the construction period and saves material costs.

[0048] 3. The requirements for construction workers are not high and they can start construction after simple training.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A lifting device for converting white manhole covers to black manhole covers on municipal roads, characterized in that: It includes a main body and a regulating mechanism, wherein: A supporting structure is fixedly connected to the main body, and the manhole cover is placed on the supporting structure; The adjustment mechanism includes a positioning member and a locking member, wherein the positioning member is movably connected to the main body and is located below the supporting structure, and the distance between the positioning member on the main body and the supporting structure is adjusted to adjust the height; the locking member is used to fix the positioning member on the main body; The supporting structure is welded to the main body, arranged vertically with the main body, and located in the middle and upper part of the main body; The supporting structure is configured as a fan-shaped structure.

2. The municipal road white-to-black manhole cover lifting device according to claim 1 is characterized by: The main body is configured as a columnar structure, and the columnar structure is configured to include at least a portion of a threaded structure, and the positioning member is connected to the threaded structure.

3. The municipal road white-to-black manhole cover lifting device according to claim 2 is characterized by: The locking member is configured as a nut matching the threaded structure.

4. The municipal road white-to-black manhole cover lifting device according to any one of claims 1-3, characterized in that: The main body is configured as a lead screw with a diameter of 16 mm.

5. The municipal road white-to-black manhole cover lifting device according to any one of claims 1-3, characterized in that: The supporting structure and the positioning member are both made of 10 mm thick steel plates.

6. A method for lifting a manhole cover converted from white to black on a municipal road, using the device for lifting a manhole cover converted from white to black on a municipal road as claimed in any one of claims 1 to 5, characterized in that: The steps include: S1: first layer of asphalt concrete construction; S2: Remove the manhole cover; S3: drilling holes in the well wall according to the position of the well cover support hole; S4: Install the municipal road white-to-black manhole cover lifting device and adjust the height according to the elevation; S5: Fix the manhole cover; S6: Filling concrete between the top surface of the well wall and the well seat support; S7: Construction of the second layer of asphalt concrete.

7. The method for lifting the white-to-black manhole cover of a municipal road according to claim 6 is characterized in that: The drilling of the well wall in step S3 includes evenly drilling 4 holes with a diameter of 20 mm and a depth of 16 cm according to the positions of the well cover support holes.

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