CN219062729U

CN219062729U - Interface sealing structure for ductile cast iron pipe

Info

Publication number: CN219062729U
Application number: CN202221502956.8U
Authority: CN
Inventors: 翟金龙; 林雪川; 暴延强; 秦好冲; 江梦乐; 曹雷; 杨晋娜; 柴超超
Original assignee: Guangdong Xinxing Ductile Iron Pipes Co ltd
Current assignee: Guangdong Xinxing Ductile Iron Pipes Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-05-23
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to an interface sealing structure for a ductile cast iron pipe, which comprises a first ductile cast iron pipe, wherein a sealing device is arranged outside the first ductile cast iron pipe, the sealing device comprises a stabilizing block fixedly connected to the outside of the first ductile cast iron pipe, a first nut is fixedly connected to the bottom of the stabilizing block, a first rigid flange is fixedly connected to the top of the first ductile cast iron pipe, a screw rod is connected to the internal thread of the first nut, a second rigid flange is movably connected to the internal of the screw rod, a first nut is fixedly connected to the top of the second rigid flange, and a limiting block is connected to the bottom thread of the screw rod. This interface seal structure for nodular cast iron pipe through artifical rotation rotary handle, can drive the screw pole and rotate when rotatory, through the cooperation of structure, makes first nodular cast iron pipe and the separation of second nodular cast iron pipe, when needs installation, makes the screw pole fixed with the inside spacing mouth of stopper, has reached the effect of being convenient for seal.

Description

Interface sealing structure for ductile cast iron pipe

Technical Field

The utility model relates to the technical field of ductile cast iron pipes, in particular to an interface sealing structure for a ductile cast iron pipe.

Background

The spheroidal graphite cast iron pipe is a pipe which is formed by adding a spheroidizing agent into cast molten iron with more than eighteen, and is subjected to high-speed centrifugal casting by a centrifugal spheroidal graphite cast iron machine, is mainly used for conveying tap water, is an ideal material for selecting a tap water pipeline, is essentially a spheroidal graphite cast iron pipe, is characterized in that graphite in the spheroidal graphite cast iron pipe exists in a spheroidal form because of the nature of iron and the performance of steel, generally has six to seven stages, the spheroidization grade of the cast iron pipe is controlled to be one to three stages in quality, the spheroidization rate is more than eighty percent, the mechanical property of the material is better improved, and the metallographic structure of the annealed spheroidal graphite cast iron pipe is ferrite and a small amount of pearlite, and has good mechanical property, so the spheroidal graphite cast iron pipe is called.

The spheroidal graphite cast iron pipe has been widely used at present, so that a relatively complete spheroidal graphite cast iron pipe is formed, but most interfaces of the existing spheroidal graphite cast iron pipe have poor sealing effect, when the water pressure in the pipe is increased, water loss and water pollution caused by leakage are easy to occur, the use efficiency of the spheroidal graphite cast iron pipe is seriously influenced, and therefore, the social requirement is difficult to meet, and the interface sealing structure for the spheroidal graphite cast iron pipe is provided to solve the problem.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an interface sealing structure for a nodular cast iron pipe, which has the advantages of convenient sealing and the like, and solves the problems that the sealing effect of the nodular cast iron pipe interface is poor, water loss and water pollution are easily caused by leakage when the water pressure in the pipe is increased, and the service efficiency of the nodular cast iron pipe is seriously influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the interface sealing structure for the ductile cast iron pipe comprises a first ductile cast iron pipe, wherein a sealing device is arranged outside the first ductile cast iron pipe;

the sealing device comprises a stabilizing block fixedly connected to the outer portion of a first ductile cast iron pipe, a first nut is fixedly connected to the bottom of the stabilizing block, a first rigid flange is fixedly connected to the top of the first ductile cast iron pipe, a screw rod is connected to the inner thread of the first nut, a second rigid flange is movably connected to the inner portion of the screw rod, a second nut is fixedly connected to the top of the second rigid flange, a limiting block is connected to the bottom thread of the screw rod, and a second ductile cast iron pipe is fixedly connected to the top of the second rigid flange.

Further, the connection mode of the stabilizing block and the first nut is welding, and the appearance of the stabilizing block is cuboid.

Further, the movable opening is formed in the stabilizing block, and the screw rod penetrates through the movable opening and extends to the outside of the stabilizing block.

Further, the inside of stopper has offered spacing mouth, screw pole and spacing mouth looks adaptation.

Further, the top fixedly connected with rotation handle of screw pole, the relative side swing joint of first nodular cast iron pipe and second rigid flange has waterproof glue.

Further, the sealing devices are two in number and are uniformly distributed on the left side and the right side of the first ductile iron pipe in equal number.

Further, the top fixedly connected with screw thread pipeline of first nodular cast iron pipe, the screw thread mouth has been seted up to the inside of second nodular cast iron pipe, screw thread pipeline and screw thread mouth looks adaptation.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this interface seal structure for nodular cast iron pipe need be to the first nodular cast iron pipe that has sealed with the second nodular cast iron pipe when separating, through the manual work rotation handle, the screw pole can be driven to rotate when rotatory to the rotation handle, can break away from the inside of stabilizer, first nut, first rigid flange, second rigid flange and first nut, then rotatory first nodular cast iron pipe drives the screw pipeline and rotates, make first nodular cast iron pipe and the separation of second nodular cast iron pipe, when needing the installation, make screw pole and the inside spacing mouth of stopper fixed, reached the sealed effect of being convenient for, it is poor to have solved the sealed effect of nodular cast iron pipe mouth, when the intraductal water pressure improves, take place the leakage easily and make loss of water and the water pollution, seriously influence the problem of nodular cast iron pipe availability factor.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a front elevational view of the structure of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1 a first nodular cast iron pipe, 2 a sealing device, 201 a stabilizing block, 202 a first nut, 203 a first rigid flange, 204 a screw rod, 205 a second rigid flange, 206 a second nut, 207 a rotating handle, 208 a limiting block, 3 waterproof glue, 4-thread pipelines and 5 a second nodular cast iron pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an interface sealing structure for a ductile cast iron pipe in this embodiment includes a first ductile cast iron pipe 1, a sealing device 2 is disposed outside the first ductile cast iron pipe 1, the sealing device 2 includes a stabilizing block 201 fixedly connected to the outside of the first ductile cast iron pipe 1, a first nut 202 is fixedly connected to the bottom of the stabilizing block 201, the connecting mode between the stabilizing block 201 and the first nut 202 is welding, and the shape of the stabilizing block 201 is cuboid.

The welding connection manner makes the stabilizing block 201 and the first nut 202 more stable, so that the overall structure is more stable.

In this embodiment, the top of the first ductile iron pipe 1 is fixedly connected with a first rigid flange 203, the internal thread of the first nut 202 is connected with a screw rod 204, the internal movable connection of the screw rod 204 is provided with a second rigid flange 205, the inside of the stabilizing block 201 is provided with a movable opening, and the screw rod 204 penetrates through the movable opening and extends to the outside of the stabilizing block 201.

In this embodiment, the top of the second rigid flange 205 is fixedly connected with a second nut 206, the bottom of the screw rod 204 is screwed with a limiting block 208, a limiting opening is formed in the limiting block 208, and the screw rod 204 is adapted to the limiting opening.

In this embodiment, the top of the second rigid flange 205 is fixedly connected with the second ductile cast iron pipe 5, the top of the screw rod 204 is fixedly connected with the rotating handle 207, and the opposite sides of the first ductile cast iron pipe 1 and the second rigid flange 205 are movably connected with the waterproof glue 3.

It will be appreciated that the waterproofing membrane 3 prevents water from flowing out of the interiors of the first and second

ductile iron pipes

1 and 5 when fixed.

In this embodiment, the number of the sealing devices 2 is two, and the sealing devices are uniformly distributed on the left and right sides of the first ductile cast iron pipe 1 in equal number, the top of the first ductile cast iron pipe 1 is fixedly connected with a threaded pipe 4, a threaded opening is formed in the second ductile cast iron pipe 5, the threaded pipe 4 is matched with the threaded opening, the shape of the threaded pipe 4 is a cylinder, and threads are formed on the surface of the threaded pipe.

The working principle of the embodiment is as follows:

when the sealed first ductile cast iron pipe 1 and the sealed second ductile cast iron pipe 5 are required to be separated in use, the rotating handle 207 is manually rotated, the rotating handle 207 can drive the screw rod 204 to rotate when rotating, the screw rod 204 can be separated from the limiting opening in the limiting block 208 firstly when rotating, then separated from the stabilizing block 201, the first nut 202, the first rigid flange 203, the second rigid flange 205 and the second nut 206, and then the first ductile cast iron pipe 1 is rotated to drive the threaded pipeline 4 to rotate, so that the first ductile cast iron pipe 1 and the second ductile cast iron pipe 5 are separated, and when the sealed ductile cast iron pipe is required to be installed, the screw rod 204 is fixed with the limiting opening in the limiting block 208 through a reverse method, so that the sealing effect of the ductile cast iron pipe is poor, and the problems that water loss and water pollution caused by leakage easily occur when the water pressure in the pipe is increased and the use efficiency of the ductile cast iron pipe is seriously influenced are solved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an interface seal structure for nodular cast iron pipe, includes first nodular cast iron pipe (1), its characterized in that: a sealing device (2) is arranged outside the first ductile iron pipe (1);

sealing device (2) are including fixed connection in outside steady piece (201) of first nodular cast iron pipe (1), the bottom fixedly connected with first nut (202) of steady piece (201), the first rigid flange (203) of top fixedly connected with of first nodular cast iron pipe (1), the inside threaded connection of first nut (202) has screw pole (204), the inside swing joint of screw pole (204) has second rigid flange (205), the top fixedly connected with second nut (206) of second rigid flange (205), the bottom threaded connection of screw pole (204) has stopper (208), the top fixedly connected with second nodular cast iron pipe (5) of second rigid flange (205).

2. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: the connecting mode of the stabilizing block (201) and the first nut (202) is welding, and the appearance of the stabilizing block (201) is cuboid.

3. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: the inside of the stabilizing block (201) is provided with a movable opening, and the screw rod (204) penetrates through the movable opening and extends to the outside of the stabilizing block (201).

4. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: and a limiting opening is formed in the limiting block (208), and the screw rod (204) is matched with the limiting opening.

5. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: the top fixedly connected with rotation handle (207) of screw (204), opposite side swing joint of first nodular cast iron pipe (1) and second rigid flange (205) has waterproof glue (3).

6. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: the sealing devices (2) are two in number and are uniformly distributed on the left side and the right side of the first ductile iron pipe (1) in equal number.

7. An interface seal structure for a ductile iron pipe according to claim 1, characterized in that: the top fixedly connected with screw thread pipeline (4) of first nodular cast iron pipe (1), the screw thread mouth has been seted up to the inside of second nodular cast iron pipe (5), screw thread pipeline (4) and screw thread mouth looks adaptation.