A municipal ductile iron manhole cover that is easy to maintain

Abstract

The utility model relates to the technical field of manhole covers, and specifically to a municipal ductile iron manhole cover which is easy to maintain, comprising a cover ring, a sealing mechanism installed at the ring wall of the cover ring, the sealing mechanism consisting of a manhole cover body, a bearing, a threaded rod, a cross groove, an internal threaded tube and a cross rod combination, a group of symmetrical cross rods are welded at the inner wall of the cover ring, an internal threaded tube is welded at the other end of a group of cross rods, a group of symmetrical bearings are fixedly installed at the cover wall of the manhole cover body, and the inner ring of the bearing is threadedly connected with the rod wall of the threaded rod, a cross groove is provided at one end of the threaded rod, and the threaded rod pushes the manhole cover body to move upward, thereby reducing the labor intensity of personnel opening the manhole cover body and achieving protection for personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a municipal ductile iron manhole cover which is convenient to maintain. Background Art

[0002] We know that there are many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipelines, power pipelines, etc. These pipelines must have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover, or manhole cover for short. Manhole covers are set on the main road, where people walk every day, so the safety of pedestrians and vehicles must be taken into consideration when designing.

[0003] When the existing municipal manhole cover is in use, the manhole cover and the manhole ring are usually connected by a hinge. When personnel open the manhole cover, they need to flip it manually. Due to the heavy weight of the ductile iron manhole cover, it is inconvenient for personnel to flip it manually. In addition, there are flammable gases such as methane in the sewer. The existing manhole cover can be flipped at will by personnel. When flammable materials fall into the sewer, it is easy to cause methane and other gases to burn and explode, causing the manhole cover to splash and injure people. To this end, we propose a municipal ductile iron manhole cover that is easy to maintain. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a municipal ductile iron manhole cover which is easy to maintain.

[0005] The technical solution adopted by the utility model to solve its technical problems is a municipal ductile iron manhole cover which is easy to maintain, including a cover ring, a sealing mechanism installed at the ring wall of the cover ring, and the sealing mechanism is composed of a manhole cover body, a bearing, a threaded rod, a cross groove, an internal threaded tube and a cross rod combination. A group of symmetrical cross rods are welded to the inner wall of the cover ring, and an internal threaded tube is welded to the other end of a group of cross rods. A group of symmetrical bearings are fixedly installed on the cover wall of the manhole cover body, and the inner ring of the bearing is threadedly connected to the rod wall of the threaded rod, and a cross groove is provided at one end of the threaded rod.

[0006] By adopting the above technical scheme, when the manhole cover body is sealed, a sealing mechanism is installed at the ring wall of the cover ring, and the sealing mechanism is composed of the manhole cover body, bearings, threaded rods, cross grooves, internal threaded tubes and cross bars. A group of symmetrical cross bars are welded at the inner wall of the cover ring, and the other end of the cross bars is welded with internal threaded tubes, so that the threaded rods are connected to the bearing threads at the manhole cover body. Since a cross groove is provided at one end of the threaded rod, when personnel lift the manhole cover body, they connect the external cross screwdriver with the cross groove and turn the screwdriver to make the threaded rod rotate in the internal threaded tube, so that the threaded rod pushes the manhole cover body upward, thereby reducing the labor intensity of personnel opening the manhole cover body and achieving personnel protection.

[0007] Specifically, it also includes a filtering mechanism, and the inner wall of the cover ring is connected to the filtering mechanism.

[0008] By adopting the above technical solution, the filtering mechanism can prevent the manhole cover fragments from falling into the sewer after the manhole cover body is damaged.

[0009] Specifically, the filtering mechanism is composed of a honeycomb plate, an insertion rod, a limiting ring and an insertion hole. A limiting ring is welded on the inner wall of the cover ring, and two groups of symmetrical insertion holes are opened on the ring wall of the limiting ring. Two groups of symmetrical insertion rods are welded on the plate wall of the honeycomb plate, and the insertion rods are located in the insertion holes.

[0010] By adopting the above technical solution, when filtering the well ring, since the inner wall of the cover ring is connected with a filtering mechanism, the filtering mechanism is composed of a honeycomb plate, an insert rod, a limit ring and a socket combination. Since the limit ring is welded on the inner wall of the well ring, a group of symmetrical sockets are opened on the ring wall of the limit ring. Therefore, after the insert rod is inserted into the knife socket, the honeycomb plate is located on the top of the limit ring, so that the inside of the cover ring can be filtered through the honeycomb plate.

[0011] Specifically, a gasket is welded on the circle wall of the cover ring, and a through groove is opened on the circle wall of the gasket.

[0012] By adopting the above technical solution, the cover ring can be supported by the gasket.

[0013] Specifically, the ring wall of the gasket and the ring wall of the cover ring are welded and connected through a plurality of groups of symmetrical reinforcement blocks.

[0014] By adopting the above technical solution, the strength of the cover ring can be increased.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses a municipal ductile iron manhole cover which is easy to maintain. When the manhole cover body is sealed, a sealing mechanism is installed at the ring wall of the cover ring. The sealing mechanism is composed of a manhole cover body, a bearing, a threaded rod, a cross groove, an internal threaded tube and a cross rod. A group of symmetrical cross rods are welded at the inner wall of the cover ring, and an internal threaded tube is welded at the other end of the cross rod, so that the threaded rod is connected to the bearing thread of the manhole cover body. Since a cross groove is provided at one end of the threaded rod, when a person lifts the manhole cover body, after connecting an external cross screwdriver with the cross groove, the screwdriver is turned to make the threaded rod rotate in the internal threaded tube, so that the threaded rod pushes the manhole cover body upward, thereby reducing the labor intensity of the person opening the manhole cover body and achieving protection for the person.

[0017] (2) The utility model discloses a municipal ductile iron manhole cover which is easy to maintain. When filtering the manhole ring, a filtering mechanism is connected to the inner wall of the cover ring. The filtering mechanism is composed of a honeycomb plate, a rod, a limit ring and a socket. Since a limit ring is welded to the inner wall of the manhole ring, a group of symmetrical sockets are provided on the ring wall of the limit ring. When the rod is inserted into the socket, the honeycomb plate is located on the top of the limit ring, so that the inside of the cover ring can be filtered through the honeycomb plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is the main figure of the utility model;

[0020] Figure 2 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the filter mechanism structure of the utility model;

[0022] In the figure: 1. cover ring; 2. sealing mechanism; 201. manhole cover body; 202. bearing; 203. threaded rod; 204. cross groove; 205. internal threaded pipe; 206. cross bar; 3. gasket; 4. reinforcement block; 5. through groove; 6. filtering mechanism; 601. honeycomb plate; 602. plug rod; 603. limit ring; 604. plug hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] As an embodiment of the present utility model, Figure 1 , Figure 2 and Figure 3As shown, the utility model describes a municipal ductile iron manhole cover that is easy to maintain, including a cover ring 1, a sealing mechanism 2 is installed at the ring wall of the cover ring 1, and the sealing mechanism 2 is composed of a manhole cover body 201, a bearing 202, a threaded rod 203, a cross groove 204, an internal threaded tube 205 and a cross rod 206. A group of symmetrical cross rods 206 are welded to the inner wall of the cover ring 1, and an internal threaded tube 205 is welded to the other end of a group of cross rods 206. A group of symmetrical bearings 202 are fixedly installed on the cover wall of the manhole cover body 201, and the inner ring of the bearing 202 is threadedly connected to the rod wall of the threaded rod 203, and a cross groove 204 is opened at one end of the threaded rod 203.

[0025] When in use, since a sealing mechanism 2 is installed at the circle wall of the cover ring 1, the sealing mechanism 2 is composed of a manhole cover body 201, a bearing 202, a threaded rod 203, a cross groove 204, an internal threaded tube 205 and a cross rod 206. Since a group of symmetrical cross rods 206 are welded at the inner wall of the circle of the cover ring 1, and an internal threaded tube 205 is welded at the other end of the cross rod 206, the threaded rod 203 is threadedly connected to the bearing 202 at the manhole cover body 201. Since a cross groove 204 is provided at one end of the threaded rod 203, when a person lifts the manhole cover body 201, after connecting an external cross screwdriver with the cross groove 204, the screwdriver is turned to make the threaded rod 203 rotate in the internal threaded tube 205, so that the threaded rod 203 pushes the manhole cover body 201 to move upward, thereby reducing the labor intensity of the person opening the manhole cover body 201 and achieving protection for the person.

[0026] like Figure 1 As shown, it also includes a filtering mechanism 6, and the inner wall of the cover ring 1 is connected to the filtering mechanism 6.

[0027] When in use, the filtering mechanism 6 can prevent the manhole cover body 201 from being damaged and the manhole cover debris from falling into the sewer.

[0028] like Figure 1 and Figure 3 As shown, the filtering mechanism 6 is composed of a honeycomb plate 601, an insertion rod 602, a limiting ring 603 and an insertion hole 604. The limiting ring 603 is welded on the inner wall of the cover ring 1, and two groups of symmetrical insertion holes 604 are opened on the ring wall of the limiting ring 603. Two groups of symmetrical insertion rods 602 are welded on the plate wall of the honeycomb plate 601, and the insertion rods 602 are located in the insertion holes 604.

[0029] When in use, since the inner wall of the cover ring 1 is connected to a filtering mechanism 6, the filtering mechanism 6 is composed of a honeycomb plate 601, an insert rod 602, a limiting ring 603 and an insertion hole 604. Since the limiting ring 603 is welded to the inner wall of the well ring, a group of symmetrical insertion holes 604 are opened on the ring wall of the limiting ring 603. Therefore, after the insert rod 602 is inserted into the knife insertion hole 604, the honeycomb plate 601 is located on the top of the limiting ring 603, so that the inside of the cover ring 1 can be filtered through the honeycomb plate 601.

[0030] like Figure 1 As shown, a gasket 3 is welded on the wall of the cover ring 1 , and a through groove 5 is opened on the wall of the gasket 3 .

[0031] When in use, the cover ring 1 can be supported by the gasket 3 .

[0032] like Figure 1 As shown, the wall of the gasket 3 and the wall of the cover ring 1 are welded and connected via a plurality of groups of symmetrical reinforcement blocks 4 .

[0033] When in use, the strength of the cover ring 1 can be increased.

[0034] When the utility model is used, when sealing the manhole cover body 201, since the sealing mechanism 2 is installed at the ring wall of the cover ring 1, the sealing mechanism 2 is composed of the manhole cover body 201, the bearing 202, the threaded rod 203, the cross groove 204, the internal threaded tube 205 and the cross bar 206. Since a group of symmetrical cross bars 206 are welded at the inner wall of the ring of the cover ring 1, and the other end of the cross bar 206 is welded with the internal threaded tube 205, the threaded rod 203 is threadedly connected with the bearing 202 at the manhole cover body 201. Since one end of the threaded rod 203 is provided with a cross groove 204, when the personnel lift the manhole cover body 201, after connecting the external cross screwdriver with the cross groove 204, the screwdriver is turned to make the threaded rod 203 and the bearing 202 at the manhole cover body 201 are connected. The rod 203 rotates in the internal threaded tube 205, so that the threaded rod 203 pushes the manhole cover body 201 to move upward, thereby reducing the labor intensity of personnel opening the manhole cover body 201 and realizing personnel protection. When filtering the manhole ring, since the inner wall of the cover ring 1 is connected with the filtering mechanism 6, the filtering mechanism 6 is composed of a honeycomb plate 601, a plug rod 602, a limit ring 603 and a socket 604. Since the limit ring 603 is welded on the inner wall of the manhole ring, a group of symmetrical sockets 604 are opened on the ring wall of the limit ring 603. Therefore, after the plug rod 602 is inserted into the knife socket 604, the honeycomb plate 601 is located on the top of the limit ring 603, so that the inside of the cover ring 1 can be filtered through the honeycomb plate 601.

[0035] The above shows and describes the basic principles, 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 in the specification are only to illustrate the principles of 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 protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A municipal ductile iron manhole cover that is easy to maintain, characterized by: The invention comprises a cover ring (1), wherein a sealing mechanism (2) is installed at the ring wall of the cover ring (1), wherein the sealing mechanism (2) is composed of a manhole cover body (201), a bearing (202), a threaded rod (203), a cross groove (204), an internal threaded tube (205) and a cross rod (206), wherein a group of symmetrical cross rods (206) are welded at the inner wall of the ring of the cover ring (1), and an internal threaded tube (205) is welded at the other end of a group of cross rods (206), and a group of symmetrical bearings (202) are fixedly installed at the cover wall of the manhole cover body (201), and the inner ring of the bearing (202) is threadedly connected to the rod wall of the threaded rod (203), and a cross groove (204) is provided at one end of the threaded rod (203).

2. The municipal ductile iron manhole cover that is easy to maintain according to claim 1 is characterized in that: It also comprises a filtering mechanism (6), and the filtering mechanism (6) is connected to the inner wall of the cover ring (1).

3. The municipal ductile iron manhole cover that is easy to maintain according to claim 2 is characterized in that: The filtering mechanism (6) is composed of a honeycomb plate (601), an insertion rod (602), a limiting ring (603) and an insertion hole (604); the limiting ring (603) is welded on the inner wall of the cover ring (1); two groups of symmetrical insertion holes (604) are opened on the ring wall of the limiting ring (603); two groups of symmetrical insertion rods (602) are welded on the plate wall of the honeycomb plate (601), and the insertion rods (602) are located in the insertion holes (604).

4. The municipal ductile iron manhole cover that is easy to maintain according to claim 1 is characterized in that: A gasket (3) is welded on the wall of the cover ring (1), and a through groove (5) is provided on the wall of the gasket (3).

5. The municipal ductile iron manhole cover that is easy to maintain according to claim 4 is characterized in that: The wall of the gasket (3) and the wall of the cover ring (1) are welded and connected via a plurality of groups of symmetrical reinforcement blocks (4).

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