Integrated manhole cover

Abstract

The utility model discloses an integrated manhole cover, which comprises a manhole cover body, the manhole cover body is provided with an outer edge part, the outer edge part is connected with a support lug, the manhole cover body, the support lug and the outer edge part are integrally blanked and are processed by an integrated pressing die, and finished product pressing is performed through computational analysis and pressure test. According to the tank container manhole cover, materials, machining time and production cost can be saved, the strength is improved while environmental protection is facilitated, the thickness of raw materials is reduced, and the leakage risk of the tank container caused by welding defects of the manhole cover is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tank containers and relates to an integrated manhole cover. Background Art

[0002] Tank containers are used to transport liquid goods such as wine, oil, liquid food, chemicals, etc. They are mainly composed of liquid tanks and frames. The liquid tanks are oval or nearly spherical, with a double-layer structure. The inner wall is made of stainless steel or other rigid materials, but it needs to be coated with a layer of epoxy resin to prevent corrosion of liquid goods. The outer wall is made of insulation material. There is a circular loading port on the top of the tank and a discharge valve at the bottom of the tank. The frame is made of high-strength steel, and the liquid tank is placed in the middle of the frame.

[0003] When the tank container needs to be loaded or inspected, the manhole cover must be opened first to facilitate the operator to enter the interior of the tank container; when the manhole cover is closed in place, the manhole cover and the tank container must be completely sealed to avoid leakage of the tank container.

[0004] At present, various types of tank containers on the market use pressed manhole covers and lugs for connection by welding, which has the following disadvantages: 1. When the manhole cover and the lug are welded, once there is a weld defect, leakage is likely to occur, causing an accident; 2. The lug assembly is prone to deviation, causing the product to be eccentric up and down, which is prone to leakage; 3. Liquid is easily accumulated at the weld between the manhole cover and the lug, which is difficult to clean and easy to cause pollution; 4. The welding of the manhole cover and the lug increases the welding material and labor costs, and also pollutes the environment during welding; 5. The welded lug has low strength, the lug material is thick, and material is wasted. Utility Model Content

[0005] In view of the above problems existing in the prior art, the present application provides an integrated manhole cover.

[0006] The technical solution of the utility model is as follows:

[0007] The integrated manhole cover comprises a manhole cover body, wherein the manhole cover body is provided with an outer edge portion, the outer edge portion is connected with a support ear, the manhole cover body, the support ear and the outer edge portion are cut as a whole and processed by an integrated pressing mold, and the finished product is pressed through calculation analysis and pressure testing.

[0008] As a preferred embodiment of the utility model: the support ear is set to be multiple and evenly distributed along the circumference, the support ear includes an arc portion 1 and an arc portion 2, a mounting hole is opened between the arc portion 1 and the arc portion 2, the arc portion 1 is connected to the inclined portion 1, the arc portion 2 is connected to the inclined portion 2, and the angle between the inclined portion 1 and the inclined portion 2 is 30 degrees to 60 degrees.

[0009] As a preferred embodiment of the utility model: there are eight supporting ears and they are evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

[0010] As a preferred embodiment of the utility model: four supporting ears are provided and are evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

[0011] As a preferred embodiment of the utility model: six supporting ears are provided and evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

[0012] As a preferred implementation manner of the present utility model: the mounting hole is a waist-shaped hole.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses an integrated manhole cover, which adopts an integrated molded manhole cover to improve product quality, save materials and eliminate welding, grinding and other processes, which is beneficial to environmental protection and at the same time improves the strength and reduces the thickness of raw materials, thereby saving processing time and production costs, and reducing the risk of leakage of pressure vessels caused by welding defects of the manhole cover; the appearance is more beautiful and the usability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the first embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional view of the first embodiment of the utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the first embodiment of the utility model;

[0018] Figure 4 This is a view in the direction of A of the first embodiment of the utility model;

[0019] Figure 5 This is a front view of a second embodiment of the utility model;

[0020] Figure 6 It is a front view of a third embodiment of the utility model. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, the first embodiment of the utility model is an integrated manhole cover, including a manhole cover body 21, the manhole cover body 21 is provided with an outer edge portion, the outer edge portion is connected to a support ear 22, the manhole cover body 21, the support ear 22 and the outer edge portion are integrated and processed by an integrated pressing mold, and the finished product is pressed by calculation analysis and pressure testing; the support ears 22 are provided with eight and evenly distributed along the circumference, the support ears 22 include an arc portion 1 222 and an arc portion 224, a mounting hole 223 is opened between the arc portion 1 222 and the arc portion 224, the arc portion 1 222 is connected to the inclined portion 1 221, the arc portion 224 is connected to the inclined portion 225, the angle between the inclined portion 1 221 and the inclined portion 225 is 30 degrees to 60 degrees, and the mounting hole 223 is a waist-shaped hole.

[0023] like Figure 5 As shown, the second embodiment of the utility model is an integrated manhole cover, including a manhole cover body 11, the manhole cover body 11 is provided with an outer edge portion, the outer edge portion is connected to a support ear 12, the manhole cover body 11, the support ear 12 and the outer edge portion are integrated and processed by an integrated pressing mold, and the finished product is pressed by calculation analysis and pressure testing; the support ear 12 is provided with four and evenly distributed along the circumference, the support ear 12 includes an arc portion 122 and an arc portion 2 124, a mounting hole 123 is opened between the arc portion 122 and the arc portion 2 124, the arc portion 122 is connected to the inclined portion 121, the arc portion 2 124 is connected to the inclined portion 2 125, the angle between the inclined portion 121 and the inclined portion 2 125 is 30 degrees to 60 degrees, and the mounting hole 123 is a waist-shaped hole.

[0024] like Figure 6 As shown, the third embodiment of the utility model is an integrated manhole cover, including a manhole cover body 31, the manhole cover body 31 is provided with an outer edge portion, the outer edge portion is connected to a support ear 32, the manhole cover body 31, the support ear 32 and the outer edge portion are integrated and processed by an integrated pressing mold, and the finished product is pressed by calculation analysis and pressure testing; the support ear 32 is provided with six and evenly distributed along the circumference, the support ear 32 includes an arc portion 1 322 and an arc portion 2 324, a mounting hole 323 is opened between the arc portion 1 322 and the arc portion 2 324, the arc portion 1 322 is connected to the inclined portion 1 321, the arc portion 2 324 is connected to the inclined portion 2 325, the angle between the inclined portion 1 321 and the inclined portion 2 325 is 30 degrees to 60 degrees, and the mounting hole 323 is a waist-shaped hole.

[0025] To sum up, the integrated manhole cover of the utility model can improve product quality, save materials and eliminate welding, grinding and other processes because the manhole cover adopts integrated molding. It is beneficial to environmental protection and at the same time improves the strength and reduces the thickness of raw materials, thereby saving processing time and production costs, reducing the risk of leakage of pressure vessels caused by welding defects of the manhole cover, and is convenient and reliable.

[0026] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes, and it can be fully applicable to various fields suitable for the utility model. For those familiar with the art, for ordinary technicians in the art, these embodiments can be changed, modified, replaced and modified without departing from the principle and spirit of the utility model. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the utility model is not limited to specific details.

Claims

1. One-piece manhole cover, characterized by: The invention comprises a manhole cover body, wherein the manhole cover body is provided with an outer edge portion, the outer edge portion is connected with a support ear, the manhole cover body, the support ear and the outer edge portion are cut into an integrated material and processed by an integrated pressing mold, and the finished product is pressed through calculation analysis and pressure testing.

2. The integrated manhole cover according to claim 1, characterized in that: The supporting ears are provided in plurality and are evenly distributed along the circumference, the supporting ears include an arc portion 1 and an arc portion 2, a mounting hole is provided between the arc portion 1 and the arc portion 2, the arc portion 1 is connected to the inclined portion 1, the arc portion 2 is connected to the inclined portion 2, and the angle between the inclined portion 1 and the inclined portion 2 is 30 to 60 degrees.

3. The integrated manhole cover according to claim 2, characterized in that: The number of the supporting ears is eight and evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

4. The integrated manhole cover according to claim 2, characterized in that: The number of the supporting ears is four and evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

5. The integrated manhole cover according to claim 2, characterized in that: The number of the supporting ears is six and evenly distributed along the circumference, and the angle between the first inclined portion and the second inclined portion is 30 degrees to 60 degrees.

6. The integrated manhole cover according to claim 2, characterized in that: The mounting hole is a waist-shaped hole.

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