Heat preservation well lid

Abstract

The utility model relates to the technical field of well lids, and discloses a heat preservation well lid which comprises a cover plate, a mounting groove is formed in the lower surface of the cover plate, a first foaming plate is fixedly connected to the lower surface of the cover plate, a heat preservation layer is fixedly connected to the lower surface of the first foaming plate, and a second foaming plate is fixedly connected to the lower surface of the heat preservation layer. And the lower surface of the second foaming plate is fixedly connected with an aluminum plastic film veneer, the lower surface of the cover plate is provided with a mounting platform, the lower surface of the mounting platform is fixedly connected with a sealing ring, and the bottom end of the cover plate is provided with a cover seat. According to the manhole cover, the first foaming plate, the heat preservation layer and the second foaming plate are installed in the cover plate, the multi-layer heat preservation effect of the manhole cover is improved, heat in a manhole chamber can be prevented from being dissipated outwards through the manhole cover through the aluminum-plastic film veneer installed in the cover plate, the temperature in the manhole can be sealed through the sealing ring installed in the cover plate, and the service life of the manhole cover is prolonged. And a certain heat preservation effect is achieved.

Description

Technical Field

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

[0002] Manhole covers are very common components. They are used to seal the wellhead and can be opened easily, allowing people to enter the well to perform a series of operations. Urban construction requires supporting underground facilities with various functions, and also requires corresponding surface boxes, such as water meters, gas, valves, etc. Municipal manhole covers are generally made of cast iron or concrete, which can play a good sealing and protective role. In cold areas in winter, in order to avoid the temperature in the well being too low, the freezing of the pipelines can easily cause the freezing of the instruments in the box, and an inner manhole cover with a heat preservation function is required.

[0003] After searching, a kind of anti-theft manhole cover is disclosed in the announcement number: CN209482356U, which relates to the field of municipal construction technology; several latch devices and a connecting device are arranged on the circumference between the manhole seat and the manhole cover; the latch device comprises a latch seat, a sliding hole, a bolt, a latch, a latch hole and a latch handle, the manhole cover is a hollow structure, a latch seat is fixed in the manhole cover, a sliding hole is arranged on the latch seat, and the bolt passes through the sliding hole and is fixedly connected with the latch; the inner side walls of the manhole seat and the manhole cover are respectively provided with latch holes, the end of the latch is integrally connected with the latch handle, and the manhole cover is provided with an operating hole; the connecting device comprises a connecting block, a pull rod, a waist-shaped hole and a fastening screw, the connecting block is respectively fixed at the connection between the manhole seat and the manhole cover, the waist-shaped hole is arranged on the connecting block, the two connecting blocks are respectively penetrated with fastening screws, and the pull rod is connected between the fastening screws. The utility model is beneficial to the anti-theft of the manhole cover, and even if tools are used, the manhole cover cannot be pried open, the opening is concealed, the manhole cover is effectively protected from being stolen, and the utility model is easy to operate.

[0004] Although the above application is beneficial to the anti-theft of the manhole cover, even if tools are used, it cannot be pried open, the opening is hidden, effectively protecting the manhole cover from theft, and it is easy to operate, but it cannot keep the temperature in the well warm in cold areas in winter and does not have a heat preservation function. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a thermal insulation manhole cover, which aims to improve the problem that the manhole cover has no thermal insulation function and cannot keep the temperature in the well warm in cold areas in winter.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulated manhole cover, comprising a cover plate, a mounting groove is formed on the lower surface of the cover plate, a first foam plate is fixedly connected to the lower surface of the cover plate, the first foam plate is installed inside the mounting groove, an insulation layer is fixedly connected to the lower surface of the first foam plate, a second foam plate is fixedly connected to the lower surface of the insulation layer, an aluminum-plastic film veneer is fixedly connected to the lower surface of the second foam plate, a mounting platform is installed on the lower surface of the mounting platform, a sealing ring is fixedly connected to the lower surface of the mounting platform, a cover seat is installed on the bottom end of the cover plate, and a rotating mechanism is installed on the outer wall of the cover seat.

[0007] Preferably, the rotating mechanism includes a movable groove, the outer wall of the movable groove is fixedly connected to the outer wall of the cover seat, the interior of the movable groove is rotatably connected to a rotating shaft, the outer wall of the cover plate is fixedly connected to a connecting ear, and one end of the connecting ear is rotatably connected to the outer wall of the rotating shaft.

[0008] Preferably, the first foam board, the thermal insulation layer, the second foam board, and the aluminum-plastic film veneer are of the same size, and the total height is equal to the sum of the heights of the mounting platform and the sealing ring.

[0009] Preferably, a drainage groove is provided at the top of the cover seat.

[0010] Preferably, a plurality of drainage holes are provided at the top of the cover seat, and one end of the drainage hole is communicated with the drainage groove.

[0011] Preferably, a fixing platform is installed inside the cover seat, and the upper surface of the fixing platform is installed on the lower surface of the sealing ring.

[0012] Preferably, a square groove is formed on the outer wall of the cover seat, and the square groove is communicated with the drainage groove.

[0013] Preferably, an L-shaped hole is formed at the top of the cover plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the multi-layer thermal insulation effect of the manhole cover is increased by installing a first foam board, a thermal insulation layer, and a second foam board inside the cover plate. The aluminum-plastic film veneer installed inside the cover plate can prevent the heat in the well chamber from being dissipated to the outside through the manhole cover. The sealing ring installed inside the cover plate can seal the temperature in the well, thereby achieving a certain thermal insulation effect.

[0016] 2. In the utility model, a drainage groove and several drainage holes are opened through the cover seat, and the drainage holes are interconnected with the drainage groove. When water flows from the surface of the cover plate to the edge of the cover plate, the water will not flow into the well, but will flow into the drainage groove and be discharged through the drainage holes. The sealing rings on the fixed platform and the cover plate are in contact to ensure sealing, and the fixed platform has a certain height to prevent water from entering.

[0017] 3. In the utility model, the first foam board, the thermal insulation layer, the second foam board, and the aluminum-plastic film veneer are of the same size, and the total height is equal to the sum of the heights of the mounting platform and the sealing ring. At the same time, they are all fixedly connected to the inside of the cover plate, which facilitates the opening and closing of the cover plate. When the staff inspects the instruments in the well, it is possible to avoid the need to install the internal thermal insulation filling material after opening the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a thermal insulation manhole cover proposed by the utility model;

[0019] Figure 2 A schematic diagram of a cover base of a thermal insulation manhole cover proposed by the utility model;

[0020] Figure 3 The utility model is a schematic diagram of a foaming board of a thermal insulation manhole cover.

[0021] Legend:

[0022] 1. Cover plate; 2. Installation platform; 3. Installation groove; 4. Sealing ring; 5. First foam board; 6. Insulation layer; 7. Second foam board; 8. Aluminum-plastic film veneer; 9. Cover seat; 10. Movable groove; 11. Connecting ear; 12. Rotating shaft; 13. Drainage groove; 14. Drainage hole; 15. Fixing platform; 16. Square groove; 17. L-shaped hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-3 The utility model provides an embodiment: an insulated manhole cover, comprising a cover plate 1, a mounting groove 3 is opened on the lower surface of the cover plate 1, a first foam plate 5 is fixedly connected to the lower surface of the cover plate 1, the first foam plate 5 is installed inside the mounting groove 3, a thermal insulation layer 6 is fixedly connected to the lower surface of the first foam plate 5, a second foam plate 7 is fixedly connected to the lower surface of the thermal insulation layer 6, an aluminum-plastic film veneer 8 is fixedly connected to the lower surface of the second foam plate 7, a mounting platform 2 is installed on the lower surface of the cover plate 1, a sealing ring 4 is fixedly connected to the lower surface of the mounting platform 2, a cover seat 9 is installed at the bottom end of the cover plate 1, and a rotating mechanism is installed on the outer wall of the cover seat 9.

[0025] Specifically, the cover plate 1 can protect the instruments inside the wellhead, the mounting groove 3 can facilitate the installation of the thermal insulation material, the first foam plate 5 can increase the thermal insulation effect of the well cover, the thermal insulation layer 6 is a polyurethane strip material, arranged in a grid shape, the second foam plate 7 further increases the thermal insulation effect of the well cover, the thermal insulation layer 6 encloses a number of air cavities between the first foam plate 5 and the second foam plate 7, and can also improve the thermal insulation effect of the well cover, the aluminum-plastic film veneer 8 can prevent the heat in the well chamber from being dissipated to the outside through the well cover, the mounting platform 2 can facilitate the installation of the sealing ring 4, the sealing ring 4 is made of vulcanized chloroprene rubber, which has the effects of anti-corrosion, anti-aging, and ozone resistance, can extend the service life, and also plays a sealing role, which provides a guarantee for the thermal insulation inside the pipe well and can prevent water from entering, and the cover seat 9 facilitates the installation of the cover plate 1.

[0026] Reference Figure 1 , Figure 2 The rotating mechanism includes a movable groove 10, the outer wall of the movable groove 10 is fixedly connected to the outer wall of the cover seat 9, the interior of the movable groove 10 is rotatably connected to a rotating shaft 12, the outer wall of the cover plate 1 is fixedly connected to a connecting ear 11, and one end of the connecting ear 11 is rotatably connected to the outer wall of the rotating shaft 12.

[0027] Specifically, the movable groove 10 facilitates the connection ear 11 to move inside the movable groove 10 , and the rotating shaft 12 facilitates the connection ear 11 to rotate inside the movable groove 10 , so that the cover plate 1 can rotate on the cover seat 9 with the rotating shaft 12 as the axis.

[0028] Reference Figure 3 The first foam board 5 , the insulation layer 6 , the second foam board 7 , and the aluminum-plastic film veneer 8 are of the same size, and the total height is equal to the sum of the heights of the mounting platform 2 and the sealing ring 4 .

[0029] Specifically, the total height of the first foam board 5 , the insulation layer 6 , the second foam board 7 , and the aluminum-plastic film veneer 8 is equal to the sum of the heights of the mounting platform 2 and the sealing ring 4 , which does not affect the opening and closing of the cover board 1 .

[0030] Reference Figure 2 A drainage groove 13 is provided at the top of the cover seat 9 , and a plurality of drainage holes 14 are provided at the top of the cover seat 9 , one end of the drainage hole 14 is communicated with the drainage groove 13 .

[0031] Specifically, the drainage groove 13 prevents water from flowing into the well when the water flows from the surface of the cover plate 1 to the edge of the cover plate 1, and the drainage hole 14 drains the water inside the drainage groove 13 to prevent the water inside the drainage groove 13 from being unable to be discharged and entering the well.

[0032] Reference Figure 1 , Figure 2A fixing platform 15 is installed inside the cover seat 9 , and the upper surface of the fixing platform 15 is installed on the lower surface of the sealing ring 4 .

[0033] Specifically, the fixing platform 15 contacts the sealing ring 4 when the cover plate 1 is closed to ensure sealing, and the fixing platform 15 has a certain height to prevent water from entering.

[0034] Reference Figure 2 The outer wall of the cover seat 9 is provided with a square groove 16 , and the square groove 16 is communicated with the drainage groove 13 .

[0035] Specifically, the square groove 16 is provided on one side of the movable groove 10 to facilitate installation of the connecting ear 11 .

[0036] Reference Figure 1 An L-shaped hole 17 is formed at the top of the cover plate 1 .

[0037] Specifically, the L-shaped hole 17 serves to facilitate opening the manhole cover with a hook.

[0038] Working principle: first use a special hook for opening the manhole cover to hook the L-shaped hole 17 on the cover plate 1, and rotate the cover plate 11 on the outer wall of the rotating shaft 12 to open the cover plate 1. The first foam plate 5, the thermal insulation layer 6, and the second foam plate 7 are installed inside the cover plate 1 to increase the multi-layer thermal insulation effect of the manhole cover. The aluminum-plastic film veneer 8 installed inside the cover plate 1 can prevent the heat in the well chamber from being dissipated to the outside through the manhole cover. The sealing ring 4 installed inside the cover plate 1 can seal the temperature in the well and achieve a certain thermal insulation effect. A drainage groove 13 and several drainage holes 14 are provided through the cover seat 9. The drainage holes 14 are interconnected with the drainage groove 13, so that when water flows from the surface of the cover plate 1 to the edge of the cover plate 1, the water will not stay in the well, but will stay in the drainage groove 13 and be discharged through the drainage holes 14. The fixing platform 15 is in contact with the sealing ring 4 on the cover plate 1 to ensure sealing. The fixing platform 15 has a certain height, which can also prevent water from entering.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal insulation manhole cover, comprising a cover plate (1), characterized in that: The lower surface of the cover plate (1) is provided with a mounting groove (3), the lower surface of the cover plate (1) is fixedly connected to a first foam plate (5), the first foam plate (5) is installed inside the mounting groove (3), the lower surface of the first foam plate (5) is fixedly connected to a thermal insulation layer (6), the lower surface of the thermal insulation layer (6) is fixedly connected to a second foam plate (7), the lower surface of the second foam plate (7) is fixedly connected to an aluminum-plastic film veneer (8), the lower surface of the cover plate (1) is installed with a mounting platform (2), the lower surface of the mounting platform (2) is fixedly connected to a sealing ring (4), the bottom end of the cover plate (1) is installed with a cover seat (9), and the outer wall of the cover seat (9) is installed with a rotating mechanism.

2. The thermal insulation manhole cover according to claim 1, characterized in that: The rotating mechanism comprises a movable groove (10), the outer wall of the movable groove (10) is fixedly connected to the outer wall of the cover seat (9), the interior of the movable groove (10) is rotatably connected to a rotating shaft (12), the outer wall of the cover plate (1) is fixedly connected to a connecting ear (11), and one end of the connecting ear (11) is rotatably connected to the outer wall of the rotating shaft (12).

3. The thermal insulation manhole cover according to claim 2, characterized in that: The first foamed board (5), the heat-insulating layer (6), the second foamed board (7), and the aluminum-plastic film veneer (8) are of the same size, and their total height is equal to the sum of the heights of the mounting platform (2) and the sealing ring (4).

4. The thermal insulation manhole cover according to claim 3, characterized in that: A drainage groove (13) is provided at the top of the cover seat (9).

5. The thermal insulation manhole cover according to claim 4, characterized in that: A plurality of drainage holes (14) are provided at the top end of the cover seat (9), and one end of the drainage hole (14) is communicated with the drainage groove (13).

6. The thermal insulation manhole cover according to claim 5, characterized in that: A fixing platform (15) is installed inside the cover seat (9), and the upper surface of the fixing platform (15) is installed on the lower surface of the sealing ring (4).

7. The thermal insulation manhole cover according to claim 6, characterized in that: The outer wall of the cover seat (9) is provided with a square groove (16), and the square groove (16) is communicated with the drainage groove (13).

8. The thermal insulation manhole cover according to claim 3, characterized in that: An L-shaped hole (17) is provided at the top of the cover plate (1).

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