Self-tightening well lid

Abstract

The utility model belongs to the technical field of well lids, and particularly relates to a self-tightening well lid which comprises an upper well lid body and further comprises a stainless steel layer fixedly arranged in the upper well lid body, an aluminum alloy layer fixedly arranged at the bottom of the stainless steel layer, a titanium alloy layer fixedly arranged at the bottom of the aluminum alloy layer and an upper well lid body. The anti-corrosion layer is fixedly arranged at the bottom of the titanium alloy layer, the upper well lid can be used for protecting power equipment, then the attractiveness of the upper well lid is enhanced through the anti-rust function of the stainless steel layer, then the weight of the upper well lid is reduced through the light weight effect of the aluminum alloy layer, and workers can lift the upper well lid conveniently; the strength of the upper well lid is enhanced through the high strength of the titanium alloy layer, the corrosion resistance of the anti-corrosion layer is used for enhancing the corrosion resistance of the upper well lid, the upper well lid is prevented from being eroded by rainwater, the upper well lid is made of strong enough materials and cannot be damaged after being ground by an automobile, and the service life of the upper well lid is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of manhole covers, and in particular relates to a self-tightening manhole cover. Background Art

[0002] With the development of society, the laying of power lines has become increasingly perfect. In the suburbs, power lines are erected in the air through poles. In urban areas, power lines are installed in low power pipelines. In order to facilitate installation and maintenance, openable power manhole covers are installed at certain intervals. Power manhole covers refer to covers used to cover power facilities. They are usually installed on underground power equipment in public places such as streets and squares, such as power lines and substations. The function of power manhole covers is to protect power facilities and prevent people and objects from accidentally touching and getting electric shocks. It also facilitates the power department to inspect and maintain power equipment.

[0003] For example, a Chinese patent with publication number CN205875217U discloses an electric manhole cover, including a first manhole cover, a manhole cover mounting seat and a second manhole cover. The second manhole cover is installed at the bottom of the first manhole cover, and the manhole cover mounting seat is also installed at the bottom of the first manhole cover. The surface of the first manhole cover is symmetrically provided with hollow holes, and the cavities of the hollow holes pass through the cover-opening tubes. A horizontal tube is fixed in the middle of the cover-opening tube. A handle groove is provided in the top center of the second manhole cover, and a handle is placed in the inner cavity of the handle groove.

[0004] The above patent has the following problems:

[0005] The existing manhole cover material strength is not good enough, and it will be run over by cars during use, causing the manhole cover to be damaged, reducing the service life of the manhole cover and increasing the production cost of the manhole cover. In addition, the sealing performance of the manhole cover after installation is not good. Rainwater may enter the bottom of the manhole cover through the gap, causing damage to power equipment and increasing economic losses. In view of this, we propose a self-tightening manhole cover. Utility Model Content

[0006] The purpose of the utility model is to provide a self-tightening manhole cover in view of the above-mentioned technical problems, so as to achieve the effect of good material quality and strong sealing performance.

[0007] In view of this, the utility model provides a self-tightening manhole cover, including an upper manhole cover, and also includes: a stainless steel layer is fixedly provided inside the upper manhole cover, an aluminum alloy layer is fixedly provided on the bottom of the stainless steel layer, a titanium alloy layer is fixedly provided on the bottom of the aluminum alloy layer, an anti-corrosion layer is fixedly provided on the bottom of the titanium alloy layer, a sealing ring is movably installed on the top of the upper manhole cover, a first through hole is fixedly provided inside the sealing ring, a first expansion bolt is movably installed inside the first through hole, a second through hole is fixedly provided between the first through holes, and a second expansion bolt is movably installed inside the second through hole.

[0008] Based on the above structure, the power equipment is protected by the upper manhole cover, and then the anti-rust function of the stainless steel layer is used to enhance the aesthetics of the upper manhole cover, and then the light texture of the aluminum alloy layer is used to reduce the weight of the upper manhole cover, making it convenient for the staff to lift it, and then the high strength of the titanium alloy layer is used to enhance the strength of the upper manhole cover, and then the anti-corrosion of the anti-corrosion layer is used to enhance the anti-corrosion performance of the upper manhole cover to prevent the upper manhole cover from being eroded by rainwater. When used together, the material of the upper manhole cover is strong enough, and the upper manhole cover will not be damaged after being run over by a car, thereby increasing the service life of the upper manhole cover and reducing the production cost of the upper manhole cover. The second through hole is used in conjunction with the second expansion bolt to fix the sealing ring to the top of the upper manhole cover, and then the first through hole is used in conjunction with the first expansion bolt to fix the sealing ring to the ground. When used together, the sealing ring can seal the gap between the upper manhole cover and the ground to prevent rainwater from entering the gap, and the sealing is good enough to cause loss of power equipment and reduce economic losses.

[0009] Preferably, reinforcement blocks are fixedly installed on both sides of the first through hole, and the reinforcement blocks are made of magnesium alloy to enhance the strength of the sealing ring.

[0010] Preferably, a protective plate is movably installed between the sealing rings, and the protective plate is made of rubber material and is used to limit the sealing ring.

[0011] Preferably, a transparent box is fixedly installed on the top of the protective plate, a placement groove is fixedly provided inside the transparent box, and a limiting groove is fixedly installed on the bottom of the protective plate to install a sign.

[0012] Preferably, a handle is fixedly installed inside the limiting groove, fixing plates are fixedly installed on both sides of the handle, and an infrared sensor is fixedly installed between the fixing plates, and the manhole cover can be lifted by using the handle.

[0013] Preferably, a protective cover is movably installed on the top of the handle, and a pull bolt is fixedly installed on the top of the protective cover to protect the handle.

[0014] Preferably, a lower manhole cover is fixedly installed on the bottom of the upper manhole cover, an anti-wear layer is fixedly provided inside the lower manhole cover, and an asphalt layer is fixedly provided on the bottom of the anti-wear layer. If the upper manhole cover is lost, the lower manhole cover can be used to continue working.

[0015] The beneficial effects of the utility model are:

[0016] 1. The self-tightening manhole cover can use the upper manhole cover to protect the power equipment, and then use the anti-rust function of the stainless steel layer to enhance the aesthetics of the upper manhole cover, and then use the light texture of the aluminum alloy layer to reduce the weight of the upper manhole cover, which is convenient for the staff to lift, and then use the high strength of the titanium alloy layer to enhance the strength of the upper manhole cover, and then use the anti-corrosion of the anti-corrosion layer to enhance the anti-corrosion performance of the upper manhole cover to prevent the upper manhole cover from being eroded by rainwater. When used together, the material of the upper manhole cover is strong enough, and the upper manhole cover will not be damaged after being run over by a car, which increases the service life of the upper manhole cover and reduces the production cost of the upper manhole cover.

[0017] 2. The self-tightening manhole cover can use the second through hole in conjunction with the second expansion bolt to fix the sealing ring to the top of the upper manhole cover, and then use the first through hole in conjunction with the first expansion bolt to fix the sealing ring to the ground. When used together, the sealing ring can seal the gap between the upper manhole cover and the ground to prevent rainwater from entering the gap. The sealing performance is good enough to prevent loss of power equipment and reduce economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model;

[0020] Figure 3 It is a partial three-dimensional diagram of the limiting groove in the utility model;

[0021] Figure 4 It is a schematic diagram of the local structure of the upper manhole cover in the utility model.

[0022] The symbols in the figure are:

[0023] 1. Upper manhole cover; 101. Stainless steel layer; 102. Aluminum alloy layer; 103. Titanium alloy layer; 104. Anti-corrosion layer; 2. Sealing ring; 201. First through hole; 202. First expansion bolt; 203. Second through hole; 204. Second expansion bolt; 3. Reinforcement block; 4. Protective plate; 5. Transparent box; 501. Placement slot; 6. Limiting slot; 601. Handle; 602. Fixing plate; 603. Infrared sensor; 7. Protective cover; 701. Pull bolt; 8. Lower manhole cover; 801. Anti-wear layer; 802. Asphalt layer. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] The embodiment of the present application discloses a self-tightening manhole cover, including an upper manhole cover 1, and also includes: a stainless steel layer 101 is fixedly provided inside the upper manhole cover 1, an aluminum alloy layer 102 is fixedly provided at the bottom of the stainless steel layer 101, a titanium alloy layer 103 is fixedly provided at the bottom of the aluminum alloy layer 102, an anti-corrosion layer 104 is fixedly provided at the bottom of the titanium alloy layer 103, a sealing ring 2 is movably installed on the top of the upper manhole cover 1, a first through hole 201 is fixedly provided inside the sealing ring 2, a first expansion bolt 202 is movably installed inside the first through hole 201, a second through hole 203 is fixedly provided between the first through holes 201, and a second expansion bolt 204 is movably installed inside the second through hole 203.

[0027] Based on the above structure, the upper manhole cover 1 can be used to protect the power equipment, and then the anti-rust function of the stainless steel layer 101 is used to enhance the aesthetics of the upper manhole cover 1, and then the light texture of the aluminum alloy layer 102 is used to reduce the weight of the upper manhole cover 1, so that the staff can lift it conveniently, and then the high strength of the titanium alloy layer 103 is used to enhance the strength of the upper manhole cover 1, and then the anti-corrosion of the anti-corrosion layer 104 is used to enhance the anti-corrosion performance of the upper manhole cover 1 to prevent the upper manhole cover 1 from being eroded by rainwater. When used together, the material of the upper manhole cover 1 is strong enough, and the upper manhole cover 1 will not be damaged after being run over by a car, which increases the service life of the upper manhole cover 1 and reduces the production cost of the upper manhole cover 1. The second through hole 203 is used in conjunction with the second expansion bolt 204 to fix the sealing ring 2 to the top of the upper manhole cover 1, and then the first through hole 201 is used in conjunction with the first expansion bolt 202 to fix the sealing ring 2 to the ground. When used together, the sealing ring 2 can seal the gap between the upper manhole cover 1 and the ground to prevent rainwater from entering the gap. The sealing performance is good enough, and will not cause loss of power equipment, thereby reducing economic losses.

[0028] In one embodiment, reinforcement blocks 3 are fixedly installed on both sides of the first through hole 201 , and the reinforcement blocks 3 are made of magnesium alloy.

[0029] Specifically, the strength of the sealing ring 2 can be enhanced by utilizing the magnesium alloy material of the reinforcement block 3 .

[0030] In this embodiment, the reinforcing block 3 can prevent people from stepping on the sealing ring 2 and causing damage to the sealing ring 2 .

[0031] In one embodiment, a protective plate 4 is movably installed between the sealing rings 2, and the protective plate 4 is made of rubber material.

[0032] Specifically, the protective plate 4 can be used to seal the sealing rings 2 , and then the flexibility of the rubber material can be used to enhance the service life of the protective plate 4 .

[0033] In this embodiment, the protection plate 4 can seal between the sealing rings 2 to prevent rainwater from accumulating between the sealing rings 2 and causing damage to the upper manhole cover 1.

[0034] In one embodiment, a transparent box 5 is fixedly installed on the top of the protective plate 4, a placement groove 501 is fixedly provided inside the transparent box 5, and a limiting groove 6 is fixedly installed on the bottom of the protective plate 4.

[0035] Specifically, the slogan can be placed in the transparent box 5 by using the placement slot 501, and then the transparent box 5 is used to display the slogan.

[0036] In this embodiment, the slogan can remind people and reduce the risk of people stepping on the manhole cover 1.

[0037] In one embodiment, a handle 601 is fixedly installed inside the limiting groove 6 , fixing plates 602 are fixedly installed on both sides of the handle 601 , and an infrared sensor 603 is fixedly installed between the fixing plates 602 .

[0038] Specifically, the limit groove 6 can be used to protect the handle 601, and then the handle 601 can be used to lift the upper manhole cover 1 for easy installation, and then the infrared sensor 603 can be fixed by the fixing plate 602, and then the handle 601 is sensed by the infrared sensor 603. When the upper manhole cover 1 is installed, someone touches the handle 601, and the external controller transmits the information to the monitoring personnel. When the staff wants to move the upper manhole cover 1, the infrared sensor 603 is turned off by the external controller.

[0039] In this embodiment, the infrared sensor 603 can prevent the manhole cover 1 from being stolen.

[0040] In one embodiment, a protective cover 7 is movably mounted on the top of the handle 601 , and a pull bolt 701 is fixedly mounted on the top of the protective cover 7 .

[0041] Specifically, the handle 601 can be protected by the protective cover 7 , and then the protective cover 7 can be opened and closed by using the pull bolt 701 .

[0042] In this embodiment, the protective cover 7 can protect the handle 601 to prevent rainwater from corroding the handle 601 for a long time.

[0043] In one of the embodiments, a lower manhole cover 8 is fixedly installed at the bottom of the upper manhole cover 1 , an anti-wear layer 801 is fixedly provided inside the lower manhole cover 8 , and an asphalt layer 802 is fixedly provided at the bottom of the anti-wear layer 801 .

[0044] Specifically, the anti-wear layer 801 can be used to enhance the wear resistance of the lower manhole cover 8, and the waterproof property of the asphalt layer 802 can be used to enhance the waterproof effect of the lower manhole cover 8. When the upper manhole cover 1 is lost, the lower manhole cover 8 can be used to protect the electrical equipment.

[0045] In this embodiment, the lower manhole cover 8 can achieve secondary defense. When the upper manhole cover 1 is lost, the lower manhole cover 8 can be used to protect the power equipment, thereby improving practicality.

[0046] When the self-tightening manhole cover of this embodiment is in use, the second through hole 203 can be used to cooperate with the second expansion bolt 204 to fix the sealing ring 2 to the top of the upper manhole cover 1, and then the first through hole 201 can be used to cooperate with the first expansion bolt 202 to fix the sealing ring 2 to the ground, and then the magnesium alloy material of the reinforcing block 3 is used to strengthen the strength of the sealing ring 2, and then the protective plate 4 is used to seal between the sealing rings 2, and then the flexibility of the rubber material is used to enhance the service life of the protective plate 4, and then the placement groove 501 is used to put the slogan into the transparent box 5, and then the transparent box 5 is used to display the slogan, and then the limit groove 6 is used to protect the handle 601, and then the upper manhole cover 1 can be lifted by the handle 601, and then the infrared sensor 603 can be fixed by the fixing plate 602, and then the handle 601 is sensed by the infrared sensor 603. When the upper manhole cover 1 is installed, someone touches it. Touch the handle 601, and the external controller transmits the information to the monitoring personnel. When the staff wants to move the upper manhole cover 1, the infrared sensor 603 is turned off by the external controller, and the upper manhole cover 1 is used to protect the power equipment. Then the handle 601 is protected by the protective cover 7, and the protective cover 7 can be opened and closed by the pull bolt 701. Then the aesthetics of the upper manhole cover 1 is enhanced by the stainless steel layer 101, and the weight of the upper manhole cover 1 is reduced by the aluminum alloy layer 102, and the strength of the upper manhole cover 1 is enhanced by the titanium alloy layer 103. Then the anti-corrosion property of the anti-corrosion layer 104 is used to enhance the anti-corrosion performance of the upper manhole cover 1 to prevent the upper manhole cover 1 from being eroded by rainwater. Then the anti-wear layer 801 is used to enhance the wear resistance of the lower manhole cover 8, and the waterproof property of the asphalt layer 802 is used to enhance the waterproof effect of the lower manhole cover 8. When the upper manhole cover 1 is lost, the lower manhole cover 8 can be used to protect the power equipment.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-tightening manhole cover, comprising an upper manhole cover (1), characterized in that: Also includes: A stainless steel layer (101) is fixedly provided inside the upper manhole cover (1), an aluminum alloy layer (102) is fixedly provided at the bottom of the stainless steel layer (101), a titanium alloy layer (103) is fixedly provided at the bottom of the aluminum alloy layer (102), and an anti-corrosion layer (104) is fixedly provided at the bottom of the titanium alloy layer (103); a sealing ring (2) is movably installed on the top of the upper manhole cover (1), a first through hole (201) is fixedly provided inside the sealing ring (2), a first expansion bolt (202) is movably installed inside the first through hole (201), a second through hole (203) is fixedly provided between the first through holes (201), and a second expansion bolt (204) is movably installed inside the second through hole (203).

2. The self-tightening manhole cover according to claim 1, characterized in that: Reinforcement blocks (3) are fixedly mounted on both sides of the first through hole (201), and the reinforcement blocks (3) are made of magnesium alloy.

3. The self-tightening manhole cover according to claim 1, characterized in that: A protective plate (4) is movably mounted between the sealing rings (2), and the protective plate (4) is made of rubber material.

4. The self-tightening manhole cover according to claim 3 is characterized in that: A transparent box (5) is fixedly mounted on the top of the protective plate (4), a placement groove (501) is fixedly provided inside the transparent box (5), and a limiting groove (6) is fixedly mounted on the bottom of the protective plate (4).

5. The self-tightening manhole cover according to claim 4, characterized in that: A handle (601) is fixedly mounted inside the limiting groove (6), fixing plates (602) are fixedly mounted on both sides of the handle (601), and an infrared sensor (603) is fixedly mounted between the fixing plates (602).

6. The self-tightening manhole cover according to claim 5, characterized in that: A protective cover (7) is movably mounted on the top of the handle (601), and a pull bolt (701) is fixedly mounted on the top of the protective cover (7).

7. The self-tightening manhole cover according to claim 1, characterized in that: A lower manhole cover (8) is fixedly mounted on the bottom of the upper manhole cover (1), an anti-wear layer (801) is fixedly arranged inside the lower manhole cover (8), and an asphalt layer (802) is fixedly arranged on the bottom of the anti-wear layer (801).

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