High-pressure leaking stoppage device for drain pipe of boiler header

Abstract

The utility model relates to the field of drain pipe leaking stoppage devices, and discloses a high-pressure leaking stoppage device for a boiler header drain pipe, which comprises a first clamping plate and a second clamping plate, the rear end of the first clamping plate is rotatably connected with the second clamping plate, and the middle of the upper surface of the second clamping plate is in through connection with a pressure relief pipe. A valve rod is rotatably connected to the middle of the inner wall of the rear end of the pressure relief pipe, a mounting block is fixedly connected to the front end of the outer wall of a rod body of the valve rod, and a containing cavity formed through a first clamping plate and a second clamping plate, the mounting block provided with the valve plate, the valve rod provided with a rotating handle and the pressure relief pipe are used in cooperation. Therefore, when the high-pressure leaking stoppage device for the boiler header drain pipe is installed, a medium leaked out of the water conveying pipe can flow out of the pressure relief pipe, so that the pipeline medium pressure borne by the high-pressure leaking stoppage device for the boiler header drain pipe during installation is reduced, the difficulty of installing the high-pressure leaking stoppage device for the boiler header drain pipe by workers is reduced, and the working efficiency is improved. And the installation efficiency of workers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drain pipe plugging device field, especially a kind of high-pressure plugging device for boiler header drain pipe. BACKGROUND

[0002] Boiler header drain pipe is the pipe component for collecting or distributing internal medium (such as water, steam, etc.) of pipe in boiler system, and the main role of boiler header drain pipe is to connect each heating surface pipe, to collect or redistribute working medium, to ensure the uniform heating and flow of working medium in boiler.And high-pressure plugging device for boiler header drain pipe is a kind of equipment specially designed for plugging boiler header drain pipe under high pressure.

[0003] However, the existing high-pressure plugging device for boiler header drain pipe on the market has great pressure on the pipe due to the flow of internal medium of water delivery pipe during installation, which increases the difficulty of installation for workers and reduces the installation efficiency of workers.

[0004] Therefore, the skilled person in the art provides a high-pressure plugging device for boiler header drain pipe to solve the problems raised in the background art. SUMMARY

[0005] The utility model discloses a kind of high-pressure plugging devices for boiler header drain pipe to solve the problems existing in prior art, and the cooperation of adjusting screw rod with fixed bolt connected by screw thread is used, it is convenient for staff to fix No. 1 clamping plate and No. 2 clamping plate on the outside of drain pipe, and the sealing between No. 1 clamping plate and No. 2 clamping plate and drain pipe is improved by No. 1 rubber sealing ring and No. 2 rubber sealing ring, to prevent pipe medium from leaking from the inside of containing cavity.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of high-pressure plugging device for boiler header drain pipe, including No. 1 clamping plate and No. 2 clamping plate, the rear end of No. 1 clamping plate is rotatably connected with No. 2 clamping plate, the middle part of the upper surface of No. 2 clamping plate is connected with pressure relief pipe, the middle part of the rear end inner wall of pressure relief pipe is rotatably connected with valve rod, the front end of the outer wall of valve rod stem is fixedly connected with mounting block, the lower surface of mounting block is fixedly connected with valve plate, the middle part of the rear end outer wall of pressure relief pipe is fixedly connected with fixed block, the rear end of valve rod is in sequence through pressure relief pipe, fixed block to the outside of fixed block and fixedly connected with handle, the upper part of the inside of handle is equipped with installation cavity, the inside of installation cavity is slidably connected with pin column, the middle part of the outer wall of pin column body is fixedly connected with annular plate, the annular plate slides in the inside of installation cavity;

[0008] Through the technical scheme, the accommodating cavities formed in the first clamping plate and the second clamping plate, the mounting block provided with the valve plate, the valve rod provided with the rotating handle and the pressure relief pipe are used in cooperation, so that when the high-pressure plugging device for the boiler header drain pipe is installed, the medium leaked from the water conveying pipe can flow out from the pressure relief pipe, thereby reducing the pipe medium pressure borne by the high-pressure plugging device for the boiler header drain pipe during installation, and the difficulty of the staff in installing the high-pressure plugging device for the boiler header drain pipe is reduced to a certain extent, and the installation efficiency of the staff is improved.

[0009] Further, the upper surface of the first clamping plate is fixedly connected with a first rubber sealing ring on both sides of the middle part, and the lower surface of the second clamping plate is fixedly connected with a second rubber sealing ring on both sides of the middle part.

[0010] Through the technical scheme, the first rubber sealing ring and the second rubber sealing ring improve the sealing performance between the first clamping plate and the second clamping plate and the drain pipe.

[0011] Further, the middle part of the outer wall of the adjacent side of the first clamping plate and the second clamping plate is provided with an accommodating cavity.

[0012] Through the technical scheme, the accommodating cavity maintains the connectivity between the medium leaked from the drain pipe and the pressure relief pipe.

[0013] Further, the outer wall of the front end of the first clamping plate is provided with a first mounting groove on both sides, the outer wall of the front end of the second clamping plate is provided with a second mounting groove on both sides, and the middle part of the inner wall of both sides of the first mounting groove is rotatably connected with a rotating shaft.

[0014] Through the technical scheme, the rotating shaft facilitates the staff to rotate the adjusting threaded rod, so as to facilitate the staff to install the first clamping plate and the second clamping plate.

[0015] Further, the upper end of the rotating shaft is fixedly connected with an adjusting threaded rod, the upper end of the adjusting threaded rod is fixedly connected with a limiting disc, and the middle part of the outer wall of the rod body of the adjusting threaded rod is threadedly connected with a fixing bolt.

[0016] Through the technical scheme, the limiting disc prevents the fixing bolt from falling off, and the first clamping plate and the second clamping plate are fixed to the outside of the drain pipe through the fixing bolt.

[0017] Further, the outer wall of the rear end of the fixing block is provided with a clamping hole in the upper part, and the front end of the pin column is clamped and connected with the clamping hole.

[0018] Through the technical scheme, the pin column and the clamping hole are used in cooperation, so that the valve rod cannot rotate, and the valve plate is fixed and the pressure relief pipe is sealed.

[0019] Further, the rear end of the pin post penetrates the installation cavity to the outside of the handle and is fixedly connected with a limiting plate, and the middle part of the outer wall of the rear end of the limiting plate is fixedly connected with a pull ring;

[0020] Through the above technical scheme, the pull ring facilitates the staff to move the pin post, so that the pin post is separated from the clamping hole, and then the supervisor adjusts the rotation of the handle, and then the valve plate is opened.

[0021] Further, the middle part of the outer wall of the front end of the annular plate is fixedly connected with a return spring, and the front end of the return spring is fixedly connected with the inner wall of the front end of the installation cavity.

[0022] Through the above technical scheme, the return spring applies a load to the annular plate, so that the pin post is fixed in the clamping hole.

[0023] The utility model has the following beneficial effects:

[0024] 1. The high-pressure leak stoppage device for the boiler header drain pipe is provided with a containing cavity formed by the first clamping plate and the second clamping plate, a mounting block provided with a valve plate, a valve rod provided with a handle, and a pressure relief pipe, so that when the high-pressure leak stoppage device for the boiler header drain pipe is installed, the medium leaked from the water conveying pipe can flow out of the pressure relief pipe, thereby reducing the pipe medium pressure borne by the high-pressure leak stoppage device for the boiler header drain pipe during installation, reducing the difficulty of installing the high-pressure leak stoppage device for the boiler header drain pipe by the staff to a certain extent, and improving the installation efficiency of the staff.

[0025] 2. The high-pressure leak stoppage device for the boiler header drain pipe is provided with an adjusting threaded rod provided with a fixing bolt in a threaded connection, so that the staff can fix the first clamping plate and the second clamping plate outside the drain pipe, and the sealing property between the first clamping plate, the second clamping plate, and the drain pipe is improved by the first rubber sealing ring and the second rubber sealing ring, so that the pipe medium is prevented from leaking from the inside of the containing cavity.

[0026] 3. The high-pressure leak stoppage device for the boiler header drain pipe is provided with a pin post provided with an annular plate, a limiting plate provided with a pull ring, a return spring, and a fixing block provided with a clamping hole, so that the staff can fix the position of the valve plate inside the pressure relief pipe, thereby controlling the opening and closing of the pressure relief pipe. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a first perspective view of the main body structure of the high-pressure leak stoppage device for the boiler header drain pipe.

[0028] Figure 2 It is a second perspective view of the main body structure of the high-pressure leak stoppage device for the boiler header drain pipe.

[0029] Figure 3 The utility model provides a kind of high-pressure leak stoppage device for boiler header drain pipe sectional view structure schematic diagram;

[0030] Figure 4 For Figure 2 Enlarged view at A.

[0031] Figure 5 For Figure 3 Enlarged view at B.

[0032] Legend:

[0033] 1, No. 1 clamping plate; 2, No. 2 clamping plate; 3, No. 1 rubber sealing ring; 4, No. 2 rubber sealing ring; 5, No. 1 installation groove; 6, No. 2 installation groove; 7, rotating shaft; 8, adjusting screw rod; 9, limit disc; 10, fixed bolt; 11, containing cavity; 12, pressure relief pipe; 13, valve stem; 14, mounting block; 15, valve plate; 16, fixed block; 17, clamping hole; 18, handle; 19, installation cavity; 20, pin column; 21, annular plate; 22, limit plate; 23, pull ring; 24, return spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] With reference to Figures 1-5 , the utility model provides a kind of high-pressure leak stoppage device for boiler header drain pipe, including No. 1 clamping plate 1 and No. 2 clamping plate 2, the rear end of No. 1 clamping plate 1 is rotationally connected with No. 2 clamping plate 2, the middle part of the upper surface of No. 2 clamping plate 2 is connected with pressure relief pipe 12, the middle part of the rear end inner wall of pressure relief pipe 12 is rotationally connected with valve stem 13, the front end of the outer wall of the stem of valve stem 13 is fixedly connected with mounting block 14, the lower surface of mounting block 14 is fixedly connected with valve plate 15, the middle part of the rear end outer wall of pressure relief pipe 12 is fixedly connected with fixed block 16, the rear end of valve stem 13 is in sequence through pressure relief pipe 12, fixed block 16 to the outside of fixed block 16 and fixedly connected with handle 18, the upper part of the inside of handle 18 is provided with installation cavity 19, pin column 20 is slidably connected in the inside of installation cavity 19, the middle part of the outer wall of the column body of pin column 20 is fixedly connected with annular plate 21, and annular plate 21 slides in the inside of installation cavity 19.

[0036] With reference to Figures 2-5The upper surface of the first clamping plate 1 is fixedly connected with a first rubber sealing ring 3 on both sides of the middle part, the lower surface of the second clamping plate 2 is fixedly connected with a second rubber sealing ring 4 on both sides of the middle part, the sealing between the first clamping plate 1 and the second clamping plate 2 and the drain pipe is improved through the first rubber sealing ring 3 and the second rubber sealing ring 3, so as to prevent the pipeline medium from leaking from the inside of the containing cavity 11, the middle part of the outer wall of the adjacent side of the first clamping plate 1 and the second clamping plate 2 is provided with a containing cavity 11, the connectivity between the medium leaked from the drain pipe and the pressure relief pipe 12 is maintained through the containing cavity 11, the outer wall of the front end of the first clamping plate 1 is provided with a first mounting groove 5 on both sides, the outer wall of the front end of the second clamping plate 2 is provided with a second mounting groove 6 on both sides, the middle part of the inner wall of the first mounting groove 5 on both sides is rotatably connected with a rotating shaft 7, the rotating shaft 7 is convenient for the staff to rotate and adjust the threaded rod 8, so as to facilitate the staff to install the first clamping plate 1 and the second clamping plate 2, the upper end of the rotating shaft 7 is fixedly connected with the adjusting threaded rod 8, the upper end of the adjusting threaded rod 8 is fixedly connected with a limiting disc 9, the middle part of the outer wall of the rod body of the adjusting threaded rod 8 is threadedly connected with a fixing bolt 10, the limiting disc 9 prevents the fixing bolt 10 from falling off, and the first clamping plate 1 and the second clamping plate 2 are fixed to the outside of the drain pipe through the fixing bolt 10, the upper part of the rear end of the fixing block 16 is provided with a clamping hole 17, the front end of the pin column 20 is clamped and connected with the clamping hole 17, the cooperation of the pin column 20 and the clamping hole 17 makes the valve rod 13 unable to rotate, so as to fix the valve plate 15 and seal the pressure relief pipe 12, the rear end of the pin column 20 penetrates the installation cavity 19 to the outside of the rotating handle 18 and is fixedly connected with a limiting plate 22, the middle part of the rear end of the outer wall of the limiting plate 22 is fixedly connected with a pull ring 23, the pull ring 23 is convenient for the staff to move the pin column 20, so that the pin column 20 is separated from the clamping hole 17, so as to facilitate the supervisor to adjust the rotation of the rotating handle 18, so as to open the valve plate 15, the middle part of the front end of the outer wall of the annular plate 21 is fixedly connected with a return spring 24, the front end of the return spring 24 is fixedly connected with the inner wall of the front end of the installation cavity 19, the return spring 24 applies a load to the annular plate 21, so as to fix the pin column 20 in the clamping hole 17.

[0037] Working principle: when the high-pressure leak stoppage device for boiler header drain pipe is used, first, the first clamping plate 1 and the second clamping plate 2 are fixed to the outside of the drain pipe, and the containing cavity 11 contains the water leakage position of the drain pipe, so that the medium leaked from the water pipe flows out from the pressure relief pipe 12, secondly, the fixed bolt 10 fixes the first clamping plate 1 and the second clamping plate 2 to the outside of the drain pipe by rotating, thirdly, the valve plate 15 rotates with the mounting block 14 by rotating the valve rod 13 through the rotating handle 18, so as to seal the pressure relief pipe 12, finally, the valve rod 13 cannot rotate by clamping the clamping hole 17 through the pin column 20, so as to fix the valve plate 15, so that the high-pressure leak stoppage device for boiler header drain pipe completes the sealing of the drain pipe.

[0038] Finally, it should be noted that: the above is only the preferred specific embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, as long as within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-pressure plugging device for a boiler header drain pipe, comprising a first clamp plate (1) and a second clamp plate (2), characterized in that: The rear end of the first clamping plate (1) is rotationally connected with the second clamping plate (2), the middle part of the upper surface of the second clamping plate (2) is throughly connected with a pressure relief pipe (12), the middle part of the inner wall of the rear end of the pressure relief pipe (12) is rotationally connected with a valve rod (13), the front end of the outer wall of the rod body of the valve rod (13) is fixedly connected with a mounting block (14), the lower surface of the mounting block (14) is fixedly connected with a valve plate (15), the middle part of the outer wall of the rear end of the pressure relief pipe (12) is fixedly connected with a fixed block (16), the rear end of the valve rod (13) is in sequence through the pressure relief pipe (12), the fixed block (16) to the outside of the fixed block (16) and is fixedly connected with a handle (18), the upper part of the inside of the handle (18) is provided with a mounting cavity (19), the inside of the mounting cavity (19) is slidably connected with a pin column (20), the middle part of the outer wall of the column body of the pin column (20) is fixedly connected with an annular plate (21), the annular plate (21) slides in the inside of the mounting cavity (19).

2. The high-pressure plugging device for the drain pipe of a boiler header according to claim 1, characterized in that: The middle part of the upper surface of the first clamping plate (1) is fixedly connected with a first rubber sealing ring (3) on both sides, the middle part of the lower surface of the second clamping plate (2) is fixedly connected with a second rubber sealing ring (4) on both sides.

3. The high-pressure plugging device for the drain pipe of a boiler header according to claim 1, characterized in that: The middle part of the outer wall of the adjacent side of the first clamping plate (1) and the second clamping plate (2) is provided with a containing cavity (11).

4. The high-pressure plugging device for the drain pipe of a boiler header according to claim 1, characterized in that: The outer wall of the front end of the first clamping plate (1) is provided with a first mounting groove (5) on both sides, the outer wall of the front end of the second clamping plate (2) is provided with a second mounting groove (6) on both sides, the middle part of the inner wall of the first mounting groove (5) is rotationally connected with a rotating shaft (7) on both sides.

5. The high-pressure leak stoppage device for a boiler header drain pipe according to claim 4, characterized by: The upper end of the rotating shaft (7) is fixedly connected with an adjusting threaded rod (8), the upper end of the adjusting threaded rod (8) is fixedly connected with a limiting disc (9), the middle part of the outer wall of the rod body of the adjusting threaded rod (8) is threadedly connected with a fixed bolt (10).

6. The high-pressure leak stoppage device for the drain pipe of a boiler header according to claim 1, characterized in that: The upper part of the outer wall of the rear end of the fixed block (16) is provided with a clamping hole (17), the front end of the pin column (20) is clampedly connected with the clamping hole (17).

7. The high-pressure leak stoppage device for the drain pipe of a boiler header according to claim 1, characterized in that: The rear end of the pin column (20) is through the mounting cavity (19) to the outside of the handle (18) and is fixedly connected with a limiting plate (22), the middle part of the outer wall of the rear end of the limiting plate (22) is fixedly connected with a pull ring (23).

8. The high-pressure leak stoppage device for the drain pipe of a boiler header according to claim 1, characterized in that: The middle part of the outer wall of the front end of the annular plate (21) is fixedly connected with a return spring (24), the front end of the return spring (24) is fixedly connected with the inner wall of the front end of the mounting cavity (19).

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