An anti-adhesion device for manhole cover during concrete construction

Abstract

The utility model discloses an anti-adhesion device for a manhole cover during concrete construction, comprising a manhole cover protection cover and a gap sealing cover. The manhole cover protection cover is made of a flexible film, and the manhole cover protection cover comprises a cover top, a cover sleeve and an elastic band. The plane shape and size of the cover top are adapted to the plane shape and size of the manhole cover, and a hinged seat cover top whose plane is adapted to the plane of the hinged seat on the manhole cover is protruded from the edge of the cover top; the top of the cover sleeve is connected to the edge of the cover top, and the cover sleeve is an open-mouth cover sleeve, and the width of the opening is adapted to the width of the hinged seat on the manhole cover; the bottom of the cover sleeve forms a channel through a flange; and the elastic band is passed through the channel at the bottom of the cover sleeve. The gap sealing cover is made of double-sided adhesive and is arranged on the bottom surface of the hinged seat cover top. The plane size of the gap sealing cover is larger than the plane size of the hinged groove of the cover seat. The utility model can effectively avoid adhesion between the manhole cover and concrete, ensure that the manhole cover can be easily opened, and greatly improve the convenience of use of the manhole cover.

Description

Technical Field

[0001] The utility model relates to an anti-adhesion device for a manhole cover during concrete construction. Background Art

[0002] In the traditional pavement concrete pouring construction process, due to the characteristics of the concrete material itself, such as fluidity, solidification and affinity with the manhole cover material, and the lack of effective protection measures for the manhole cover, unnecessary bonding between the manhole cover and the surrounding concrete often occurs in the pavement, resulting in the need to remove the concrete at the manhole cover opening and on the manhole cover surface when the manhole cover is opened for inspection or maintenance. This not only requires extra time and labor, but also affects the construction progress and increases construction costs. After the removal is completed, the anti-rust coating on the surface of the manhole cover may fall off, thereby affecting the life cycle of the manhole cover, which not only affects the normal opening and maintenance of the manhole cover, but also increases the construction cost and the difficulty of later maintenance. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an anti-adhesion device for manhole covers during concrete construction, which can effectively avoid adhesion between the manhole cover and concrete, ensure that the manhole cover can be easily opened when needed, and greatly improve the convenience of use of the manhole cover.

[0004] The purpose of the utility model is achieved as follows: an anti-adhesion device for a manhole cover during concrete construction is installed on the manhole cover, and a hinge seat is protruding from the top outer edge of the manhole cover, and the hinge seat is adapted to the hinge groove opened on the cover seat; the anti-adhesion device includes a manhole cover protection cover and a gap sealing cover; wherein,

[0005] The manhole cover protection cover is made of a flexible film, and the manhole cover protection cover comprises a cover top, a cover sleeve and an elastic band;

[0006] The planar shape and size of the cover top are adapted to the planar shape and size of the manhole cover, and a hinged seat top cover with a plane adapted to the plane of the hinged seat on the manhole cover protrudes from the edge of the cover top;

[0007] The height of the cover sleeve is greater than or equal to the thickness of the manhole cover, the top of the cover sleeve is connected to the edge of the cover top, the cover sleeve is an open cover sleeve, and the width of the opening is adapted to the width of the hinge seat on the manhole cover; the bottom of the cover sleeve forms a channel through a flange;

[0008] The elastic band is passed through the channel at the bottom of the cover;

[0009] The gap closing cover is made of double-sided adhesive and is arranged on the bottom surface of the top cover of the hinged seat of the manhole cover protective cover. The plane size of the gap closing cover is larger than the plane size of the hinged groove of the cover seat.

[0010] The anti-adhesion device of the utility model for manhole covers during concrete construction is characterized by:

[0011] 1. It can significantly avoid the adhesion between the manhole cover and the concrete, ensuring that the manhole cover can be easily opened when needed, greatly improving the convenience of using the manhole cover, and the manhole cover protective cover is easy to peel off;

[0012] 2. It is simple and easy to use, and can significantly reduce the time and labor intensity of construction workers in dealing with the problem of manhole cover adhesion, thereby effectively improving construction efficiency and shortening construction period;

[0013] 3. It can significantly reduce the maintenance and replacement costs caused by manhole cover adhesion, extend the service life of manhole covers, and bring economic benefits to urban management;

[0014] 4. It can ensure that the manhole cover will not affect its drainage, ventilation and other functions due to adhesion during normal use, thus ensuring the normal operation of urban infrastructure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view of the anti-adhesion device of the utility model for manhole cover during concrete construction;

[0016] Figure 2 It is a side view of the anti-adhesion device of the utility model for manhole cover during concrete construction;

[0017] Figure 3 It is a top view of the anti-adhesion device of the utility model after installation;

[0018] Figure 4 It is a side view of the anti-adhesion device of the utility model after installation. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 4 The anti-adhesion device of the manhole cover used in concrete construction of the utility model is installed on the manhole cover 100. A hinge seat 10 is protrudingly provided on the top outer edge of the manhole cover 100, and the hinge seat 10 is adapted to the hinge groove 20 provided on the cover seat 200.

[0021] The utility model discloses an anti-adhesion device for a manhole cover during concrete construction, comprising a manhole cover protection cover 1 and a gap sealing cover 2.

[0022] The manhole cover protection cover 1 is made of a flexible film; the manhole cover protection cover 1 includes a cover top 11, a cover sleeve 13 and an elastic band 15; wherein,

[0023] The planar shape and size of the cover top 11 match the planar shape and size of the manhole cover 100, and a hinged seat top cover 12 whose plane matches the plane of the hinged seat 10 on the manhole cover 100 protrudes from the edge of the cover top 11;

[0024] The height of the cover 13 is greater than or equal to the thickness of the manhole cover 100. The top of the cover 13 is connected to the edge of the cover top 11. The cover 13 is an open cover, and the width of the opening is adapted to the width of the hinge seat 10 on the manhole cover 10. The bottom of the cover 13 is fixed by flanging to form a channel 14.

[0025] The elastic band 15 is passed through the channel 14 at the bottom of the cover 13 .

[0026] The gap sealing cover 2 is made of 3M double-sided tape and is arranged on the bottom surface of the hinge seat top cover 12 of the manhole cover protection cover 1. The plane size of the gap sealing cover 2 is larger than the plane size of the hinge groove 20 of the cover seat 200.

[0027] The utility model is used for the anti-adhesion device of the manhole cover during concrete construction. The manhole cover protection cover 1 is made of a wear-resistant and corrosion-resistant flexible film. The flexible film can be a PVA coated high barrier film, a biaxially oriented polypropylene film (BOPP), a low-density polyethylene film (LDPE), a polyester film (PET), a nylon film (PA), a cast polypropylene film (CPP) or an aluminized film, etc., to adapt to the shape of the manhole cover 100 and effectively isolate the manhole cover 100 from direct contact with concrete. And the manhole cover protection cover 1 is easy to install and disassemble, which is convenient for construction and subsequent maintenance of the manhole cover. The bottom of the manhole cover protection cover 1 is tightened by the elastic band 15 to prevent the concrete slurry from penetrating into the gap between the manhole cover 100 and the cover seat 200 to solidify and form, resulting in the manhole cover 100 being unable to open normally. A gap sealing cover 2 made of 3M double-sided tape is arranged between the hinge seat 10 of the manhole cover 100 and the hinge groove 20 of the cover seat 200 to bond and isolate the hinge groove 20. The opening and closing bolts between the manhole cover and the cover seat of the gap sealing cover 2 cannot be opened normally due to the solidification of concrete.

[0028] The utility model is used for the anti-adhesion device of the manhole cover during concrete construction, and the following steps are performed for installation and construction:

[0029] 1. Before construction, clean the manhole cover 100 to ensure that there is no oil, dust or other impurities on the surface of the manhole cover 100. Then, select the corresponding protective device according to the size of the manhole cover 100 to ensure that it fits the manhole cover 100 tightly.

[0030] Second, place the protective device above the manhole cover 100, unfold the cover sleeve 13 of the manhole cover protective cover 1 and put it on the manhole cover 100, until the cover top 11 and the hinge seat top cover 12 cover the top surface of the manhole cover 100 and the top surface of the hinge seat 10 on the manhole cover 100 one by one; then the elastic band 15 automatically shrinks and tightens, so that the cover sleeve 13 covers the outer peripheral surface of the manhole cover 100, and then the manhole cover 100 and the cover seat 200 are closed, and the protective film of the 3M double-sided adhesive of the gap sealing cover 2 is torn off, so that the two side edges and the outer side edges of the gap sealing cover 2 are bonded to the two side top surfaces and the outer side top surface of the hinge groove 20 of the cover seat 200 one by one;

[0031] 3. After the protection device is installed, the concrete pouring construction can be carried out. Due to the existence of the protection device, the concrete will not directly contact the manhole cover 100, and the concrete will not enter the gap between the hinge seat 10 of the manhole cover 100 and the hinge groove 20 of the cover seat 200, thereby effectively preventing the occurrence of concrete adhesion.

[0032] 4. After the concrete pouring is completed and the concrete reaches the final setting conditions, the protective device can be removed.

[0033] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. An anti-adhesion device for a manhole cover during concrete construction, installed on the manhole cover, a hinge seat is protruding from the top outer edge of the manhole cover, and the hinge seat is adapted to the hinge groove opened on the cover seat; the anti-adhesion device includes a manhole cover protective cover and a gap sealing cover; characterized in that, The manhole cover protection cover is made of a flexible film, and the manhole cover protection cover comprises a cover top, a cover sleeve and an elastic band; The planar shape and size of the cover top are adapted to the planar shape and size of the manhole cover, and a hinged seat top cover with a plane adapted to the plane of the hinged seat on the manhole cover protrudes from the edge of the cover top; The height of the cover sleeve is greater than or equal to the thickness of the manhole cover, the top of the cover sleeve is connected to the edge of the cover top, the cover sleeve is an open cover sleeve, and the width of the opening is adapted to the width of the hinge seat on the manhole cover; the bottom of the cover sleeve forms a channel through a flange; The elastic band is passed through the channel at the bottom of the cover; The gap closing cover is made of double-sided adhesive and is arranged on the bottom surface of the top cover of the hinged seat of the manhole cover protective cover. The plane size of the gap closing cover is larger than the plane size of the hinged groove of the cover seat.

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