A circular-arc-shaped anticorrosion cushion block-based inspection well frame and a construction process thereof

Abstract

The present application relates to a kind of well frame based on circular anticorrosion pad and its construction technology, for installing well lid, the well frame includes well frame main body, the well frame main body inside is equipped with the well ring for bearing well lid, it is characterized in that, the upper surface of the well ring is equipped with two anticorrosion pads, the two anticorrosion pads are circular arc, and with the circular ring upper surface of the well ring cooperation, two the anticorrosion pad is symmetrically set in the circular ring upper surface of the well ring, two ends of the anticorrosion pad are all equipped with the slope to the upper surface of the well ring, the center line of the two anticorrosion pads is parallel with the driving direction in road.Compared with prior art, the present application has reduced maintenance cycle, well lid stability is good, with anticorrosion characteristics, improves mechanical strength and the like advantages.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of inspection well frames, in particular to an inspection well frame based on a circular arc-shaped anticorrosion cushion block and a construction process thereof. BACKGROUND

[0002] There are many municipal drainage inspection well facilities on urban roads and highways, and there is a "fitting gap" between the manhole cover and the well frame. During the driving process of vehicles passing through the road surface, vibration and jumping will occur between the cover and the frame, accompanied by a "ding-dang" sound, and the noise generated thereby has become one of the main sources of noise that seriously disturbs residents at night, especially on road sections with concentrated residential areas in urban areas. To alleviate this problem, through daily observation, it is found that the main cause is the damage or loss of the "noise reduction" rubber ring originally set under the manhole cover during long-term use. At the same time, accompanied by the loss of the original flat manhole cover frame, which is commonly known in the industry as "cover frame difference".

[0003] The "cover frame difference" disease has also become a high-occurrence "stubborn disease" faced by maintenance enterprises, and the high frequency of occurrence has increased maintenance costs, becoming a "burden" on the cost investment of enterprises

[0004] The "cover frame difference" disease is mainly caused by the high difference between the well frame and the manhole cover due to the loss or absence of the original rubber gasket under the manhole cover. The industry maintenance standard stipulates that the high difference is allowed h≤5mm.

[0005] Through observation and analysis, it is found that the main causes can be divided into two factors: "congenital defects" and "acquired development".

[0006] Congenital factors include:

[0007] 1. Defects in the original "gasket" installation process, causing natural shedding;

[0008] 2. The physical and chemical strength of the original rubber gasket material is insufficient, which is prone to breakage and corrosion.

[0009] Acquired factors include:

[0010] 1. Inadequate maintenance quality during installation by workers;

[0011] 2. Quality problems of the rubber "gasket" and consumption during use;

[0012] 3. "Unintentional" human damage caused by workers during the opening of the manhole cover during routine maintenance of the sewer, and the failure to restore the shed gasket in a timely manner after the operation. SUMMARY

[0013] The present application aims at overcoming the defects of the prior art that the gasket is easy to break or missing, and provides a well frame based on arc-shaped anticorrosion pad blocks, which has the advantages of reducing maintenance period, improving stability of the well lid, having anticorrosion property and improving mechanical strength, and a construction process thereof.

[0014] The object of the present application can be achieved by the following technical solutions.

[0015] A well frame based on arc-shaped anticorrosion pad blocks for installing a well lid, comprising a well frame body, an inner side of the well frame body being provided with a well ring for bearing the well lid, an upper surface of the well ring being provided with two anticorrosion pad blocks, the two anticorrosion pad blocks each being arc-shaped and matched with the circular ring-shaped upper surface of the well ring, the two anticorrosion pad blocks being symmetrically arranged on the circular ring-shaped upper surface of the well ring, and both ends of the anticorrosion pad block being provided with a slope inclined to the upper surface of the well ring.

[0016] Further, the center line of the two anticorrosion pad blocks is parallel to the driving direction in the road.

[0017] Further, the anticorrosion pad block is connected to the well frame body by an adhesive.

[0018] Further, the contact surface of the anticorrosion pad block and the well frame body is roughened.

[0019] Further, a gap is left between the two anticorrosion pad blocks.

[0020] Further, the area of the gap is less than one tenth of the area of the circular ring-shaped upper surface of the well ring.

[0021] Further, the slope has an inclination angle of 30 degrees.

[0022] Further, the well ring has a flat circular ring-shaped upper surface.

[0023] Further, the anticorrosion pad block is made of anticorrosion rubber material.

[0024] Further, the well ring is made of cast iron material.

[0025] The present application also provides a construction process of the well frame based on arc-shaped anticorrosion pad blocks.

[0026] S1: establishing a site safety enclosure in the well area and measuring the well height difference;

[0027] S2: opening the well lid of the well;

[0028] S3: removing rust and dust on the well ring;

[0029] S4: obtaining an adhesive;

[0030] S5: brushing adhesive on the upper surface of the well circle;

[0031] S6: according to the manhole height difference obtained by measurement, selecting the corrosion-resistant pad and bonding the corrosion-resistant pad on the upper surface of the well circle symmetrically;

[0032] S7: placing the well cover, re-measuring the manhole height difference, if the re-measured manhole height difference is greater than the preset height difference threshold, opening the well cover, taking out the corrosion-resistant pad, and re-executing step S6, otherwise executing step S8;

[0033] S8: on-site finishing and withdrawing the safety enclosure.

[0034] Further, the step S3 further comprises sequentially flushing, polishing and wiping the well circle.

[0035] Further, the step S5 further comprises smearing the adhesive and wiping the adhesive residue.

[0036] Compared with the prior art, the present application has the following advantages:

[0037] (1) The present application changes the installation position of the gasket from the well cover to the well frame, which can effectively avoid the "unintentional" human damage in the daily maintenance of the sewer and reduce the maintenance period.

[0038] The present application adopts two circular-arc-shaped corrosion-resistant pads, which has the following advantages:

[0039] 1. The circular-arc-shaped corrosion-resistant pads cover the annular upper surface of the well circle, have a large contact area, and can ensure the stability of the subsequently installed well cover.

[0040] 2. In view of the corrosion of the pad by sewage, the present application adopts corrosion-resistant pads to enhance the corrosion resistance and resist the corrosion of sewage, thereby ensuring the intact rate.

[0041] 3. The two ends of the corrosion-resistant pad are provided with slopes, which are not easily damaged by pressure, thereby improving the mechanical strength.

[0042] (2) The center line of the two corrosion-resistant pads is parallel to the driving direction in the road, which makes the main part of the corrosion-resistant pad receiving the impact force the middle part when the well cover in the road is pressed by the driving, and the two ends receive less impact force and are not easily damaged by pressure, thereby prolonging the service life of the corrosion-resistant pad.

[0043] (3) The contact surface of the corrosion-resistant pad and the well frame body is roughened to improve the friction between the corrosion-resistant pad and the well frame body, facilitate the adhesion of the adhesive, and ensure the firmness of the connection between the corrosion-resistant pad and the well frame body.

[0044] (4) two anticorrosion pads are left with a gap, which can avoid the two anticorrosion pads from pressing each other, and make the anticorrosion pad have a controllable extension space.

[0045] (5) the adhesive is selected for bonding and reinforcing, mainly considering that the well lid is mainly subjected to vertical pressure in the daily driving process of vehicle flow, and the transverse displacement amount is small, and the principle that there is no obvious transverse tensile force on the bonding part, and the operation is convenient, and the maintenance cost is low.

[0046] (6) the anticorrosion pad is in a circular arc shape, which is convenient for production and manufacturing, and can save materials.

[0047] (7) the anticorrosion pad in a circular arc shape ensures the bonding contact area, and the bonding is more firm, and the probability of falling of a single circular arc pad is reduced.

[0048] (8) the construction process has the characteristics of short time, short enclosure maintenance time, low maintenance cost, long service life and simple operation. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a cross-sectional view of the well frame based on the circular arc anticorrosion pad of the present application;

[0050] Figure 2 is a schematic view of the arrangement position of the well frame based on the circular arc anticorrosion pad of the present application;

[0051] Figure 3 is a performance comparison chart of the construction process provided by the embodiment of the present application and the existing construction process;

[0052] In the figure, 1 is a well frame body, 2 is a well ring, 3 is an anticorrosion pad, 4 is a slope, and 5 is a rough surface. DETAILED DESCRIPTION

[0053] The present application will be described in detail below in combination with the drawings and specific embodiments. The present embodiment is implemented on the premise of the technical scheme of the present application, and gives a detailed implementation mode and specific operation process, but the protection scope of the present application is not limited to the following embodiments.

[0054] Example 1

[0055] As Figure 1 and Figure 2As shown, this embodiment provides a manhole frame based on arc-shaped anti-corrosion pads for installing manhole covers. The manhole frame includes a frame body 1, and a manhole ring 2 for supporting the manhole cover is provided on the inner side of the frame body 1. Two anti-corrosion pads 3 are provided on the upper surface of the manhole ring 2. Both anti-corrosion pads 3 are arc-shaped and cooperate with the annular upper surface of the manhole ring 2. The two anti-corrosion pads 3 are symmetrically arranged on the annular upper surface of the manhole ring 2. Both ends of the anti-corrosion pads 3 are provided with slopes 4 that slope towards the upper surface of the manhole ring 2. In this embodiment, the inclination angle of the slopes 4 is 30 degrees.

[0056] A gap is left between the two anti-corrosion pads 3. The area of ​​the gap is less than one-tenth of the area of ​​the annular upper surface of the well ring 2.

[0057] like Figure 2 As shown, the center line connecting the two anti-corrosion pads 3 is parallel to the driving direction on the road, which avoids excessive impact force on the connection between the two anti-corrosion pads 3 during use, reduces wear and tear, and can extend the service life of the anti-corrosion pads 3.

[0058] The anti-corrosion pad 3 is connected to the well frame body 1 by an adhesive. The anti-corrosion pad 3 is made of anti-corrosion rubber. The well frame 2 is made of cast iron. Existing high-performance structural AB adhesive, super glue, 502 adhesive, and 602 adhesive can basically meet the bonding strength requirements. Further adhesives that simultaneously meet the bonding strength requirements of both rubber and cast iron, and have rapid drying properties, can be selected. The adhesive application thickness must be within the range of 1 mm to 1.5 mm.

[0059] The contact surface between the anti-corrosion pad 3 and the main body 1 of the well frame is roughened and has a rough surface 5;

[0060] Specifically, the contact surface between the anti-corrosion pad 3 and the manhole frame body 1 includes the bottom surface and one side surface of the anti-corrosion pad 3; the bottom surface can be roughened only and then bonded to the manhole frame body 1 with an adhesive; or both the bottom surface and the side surface can be roughened and then bonded to the manhole frame body 1 with an adhesive.

[0061] This design increases the friction between the anti-corrosion pad 3 and the well frame body 1, and makes it easier to absorb adhesive, thus improving the stability of the connection between the anti-corrosion pad 3 and the well frame body 1.

[0062] In this embodiment, the rough surface 5 is the bottom surface of the anti-corrosion pad 3.

[0063] The well ring 2 must have a flat, circular upper surface to meet the bonding requirements of the two anti-corrosion pads 3.

[0064] This embodiment also provides a construction process for a manhole frame based on an arc-shaped anti-corrosion pad, as described above, including the following steps:

[0065] S1: Establish on-site safety enclosure in the manhole area and measure the elevation difference of the manholes;

[0066] S2: Open the manhole cover;

[0067] S3: Remove rust and dust from the manhole ring 2;

[0068] S4: Obtain the adhesive;

[0069] S5: Apply adhesive to the upper surface of well ring 2;

[0070] S6: Based on the measured manhole height difference, select anti-corrosion pad 3 and symmetrically bond anti-corrosion pad 3 to the upper surface of manhole ring 1;

[0071] S7: Place the manhole cover and re-measure the manhole height difference. If the re-measured manhole height difference is greater than the preset height difference threshold, open the manhole cover, remove the anti-corrosion pad 3, and repeat step S6; otherwise, proceed to step S8.

[0072] S8: Finish up the work on-site and remove the safety barriers.

[0073] Step S3 also includes cleaning the rust and dust on the manhole ring 1, and then rinsing, polishing and drying the manhole ring 1 in sequence.

[0074] Step S5 also includes smoothing out the adhesive after applying it and wiping away any excess adhesive.

[0075] like Figure 3 The diagram shows a performance comparison between the construction process (new process) provided in this embodiment and existing methods such as installing rubber gaskets under the cover (under the cover installation), welding rubber gaskets (welding installation), and replacing the manhole cover and frame as a set (replacement as a set). The construction process provided in this embodiment has the characteristics of short time, short maintenance time, low maintenance cost, long service life, and simple operation.

[0076] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A construction process of a manhole frame based on a circular-arc-shaped anticorrosion pad, for installing a manhole cover, the manhole frame comprising a manhole frame body (1) provided with a well ring (2) on the inner side for bearing the manhole cover, characterized in that, The upper surface of the well circle (2) is provided with two anticorrosion pads (3), which are both arc-shaped and matched with the annular upper surface of the well circle (2), the two anticorrosion pads (3) are symmetrically arranged on the annular upper surface of the well circle (2), and the two ends of the anticorrosion pad (3) are both provided with a slope (4) inclined to the upper surface of the well circle (2); The center line of the two anticorrosion pads (3) is parallel to the driving direction in the road; The two anticorrosion pads (3) are left with a gap; The area of the gap is less than one tenth of the area of the annular upper surface of the well circle (2); The anticorrosion pad (3) is connected to the well frame body (1) through an adhesive; The contact surface of the anticorrosion pad (3) and the well frame body (1) is subjected to a roughening treatment; The inclination angle of the slope (4) is 30 degrees; The well circle (2) has a flat annular upper surface; The anticorrosion pad (3) is made of anticorrosion rubber material; The construction process comprises the following steps: S1: establishing a site safety enclosure in the inspection well area and measuring the inspection well height difference; S2: opening the well cover of the inspection well; S3: removing rust and dust on the well circle (2) of the inspection well; S4: obtaining an adhesive; S5: brushing the adhesive on the upper surface of the well circle (2); S6: selecting the anticorrosion pad (3) according to the measured inspection well height difference, and symmetrically bonding the anticorrosion pad (3) on the upper surface of the well circle (2); S7: placing the well cover, re-measuring the inspection well height difference, if the re-measured inspection well height difference is greater than the preset height difference threshold, then opening the well cover, removing the anticorrosion pad (3), and re-executing step S6, otherwise executing step S8; S8: on-site finishing and removing the safety enclosure.

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