CN220625654U

CN220625654U - Flexible cast iron pipe sealing performance detection device

Info

Publication number: CN220625654U
Application number: CN202322308872.1U
Authority: CN
Inventors: 梁春生
Original assignee: Liaoning Wangu Metal Pipe Industry Co ltd
Current assignee: Liaoning Wangu Metal Pipe Industry Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-19
Anticipated expiration: 2033-08-28

Abstract

The utility model provides a flexible cast iron pipe sealing performance detection device, wherein a push plate and a bearing plate are arranged on a bottom plate to fix a cast iron pipe, an air compressor and an air cylinder are arranged to provide an air source, the structure is simple, a support bracket is arranged to enable the cast iron pipe to be stable in the test process, a plurality of branches can be arranged on an output pipeline of the air cylinder, each branch is provided with a valve to control opening and closing, and a plurality of cast iron pipes can be detected simultaneously. The through hole in the middle of the bearing plate is a threaded hole, and the flexible hose can be temporarily connected with the threaded hole to serve as an air outlet pipe to provide an air source for other products needing to be subjected to sealing property.

Description

Flexible cast iron pipe sealing performance detection device

Technical Field

The utility model relates to the technical field of cast iron pipe tightness detection, in particular to a device for detecting the tightness of a flexible cast iron pipe.

Background

Cast iron pipe, cast iron cast pipe. Cast iron pipes are used for water supply, drainage and gas transfer lines. According to the casting method, the method is divided into continuous cast iron pipes and centrifugal cast iron pipes, wherein the centrifugal cast iron pipes are divided into sand molds and metal molds. The ductile cast iron pipe has the characteristics of iron nature, steel performance, excellent corrosion resistance, good ductility, good sealing effect and simple installation, and is mainly used for water supply, gas transmission, oil transmission and the like of industrial and mining enterprises. Cast iron pipe is one of the main pipes used in water supply network in early stage, and has wide application at present.

Once the cast iron pipe product quality is poor, leakage of the pipeline is often caused, and once the cast iron pipe is installed, replacement is not easy. The seam of the pipe wall of the part of pipeline and the seam of the coiled welded steel pipe are provided with air holes, sand holes and the like, which can cause pipe explosion and darkness leakage loss. Therefore, it is necessary to perform a tightness test on the cast iron pipe before it leaves the factory.

Disclosure of Invention

The utility model aims to provide the test device which has a simple structure and is convenient to operate, and simultaneously can meet the requirement of simultaneously detecting the tightness of a plurality of cast iron pipes according to the number of products.

The technical scheme is as follows:

in order to achieve the above purpose, the main technical scheme adopted by the utility model is as follows: the utility model provides a flexible cast iron pipe sealing performance detection device, includes air compressor and bottom plate, and air compressor's output pipeline is connected with the cylinder, and the cylinder setting is on the bottom plate, and the output pipeline of cylinder has at least one branch road to connect the bearing plate, and the through-hole is seted up to the position that bearing plate corresponds with output pipeline, is provided with the backup pad on the bottom plate, is provided with the pneumatic cylinder in the backup pad, and the pneumatic cylinder push rod passes the backup pad and promotes the push plate that sets up on the push rod top.

Further, a valve is arranged on the branch of the output pipeline.

Further, the device also comprises a support bracket which is detachably connected with the bottom plate.

Further, a groove is formed in the bottom plate.

Further, the cross section of the groove is of a trapezoid structure.

Further, the screw bolt is further arranged on the bottom plate, the threaded hole is formed in the support bracket, the through hole is formed in the support bracket, and the screw bolt penetrates through the through hole to be in threaded fit with the threaded hole formed in the bottom plate.

Further, the backup pad is L shape structure, and the backup pad passes through the bolt to be connected with the bottom plate.

Further, the through hole is a threaded hole.

Further, a pressure gauge is installed at the top of the air cylinder.

The beneficial effects are that:

the beneficial effects of the utility model are as follows: the utility model provides a flexible cast iron pipe sealing performance detection device, wherein a push plate and a bearing plate are arranged on a bottom plate to fix a cast iron pipe, an air compressor and an air cylinder are arranged to provide an air source, the structure is simple, a support bracket is arranged to enable the cast iron pipe to be stable in the test process, a plurality of branches can be arranged on an output pipeline of the air cylinder, each branch is provided with a valve to control opening and closing, and a plurality of cast iron pipes can be detected simultaneously. The through hole in the middle of the bearing plate is a threaded hole, and the flexible hose can be temporarily connected with the threaded hole to serve as an air outlet pipe to provide an air source for other products needing to be subjected to sealing property.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a device for detecting the sealing performance of a flexible cast iron pipe;

FIG. 2 is a side view of a flexible cast iron pipe sealability test device.

[ reference numerals description ]

1. An air compressor; 2. a cylinder; 21. a pressure gauge; 22. an output line; 3. a pressure bearing plate; 31. a through hole; 4. a valve; 5. a hydraulic cylinder; 6. a push plate; 7. a support bracket; 8. a support plate; 81. a bolt; 9. a bottom plate; 91. a groove.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Examples:

referring to fig. 1 and 2, the device for detecting the sealing performance of a flexible cast iron pipe according to the present utility model comprises an air compressor 1 and an air cylinder 2, wherein the air cylinder 2 is provided with a pressure gauge 21 for checking the pressure of compressed air, the air compressor 1 is arranged beside a bottom plate 9, the air cylinder 2 is arranged on the bottom plate 9, an output pipeline of the air compressor is connected with an air inlet end of the air cylinder 2, an output pipeline 22 of the air cylinder 2 can be provided with at least one branch, when one branch is arranged, the branch is connected with one pressure bearing plate 3, so as to satisfy the sealing performance detection of a cast iron pipe, when a plurality of branches are arranged, each branch is connected with one pressure bearing plate 3, and the front end of each pressure bearing plate 3 is provided with a valve 4 for controlling the on-off of the branch. A through hole 31 is formed in the middle of the bearing plate 3, a branch of the output pipeline 22 is communicated with the through hole 31, and air output by the air cylinder 2 is output at the through hole 31 through the output pipeline 22.

The opposite side of the bearing plate 3 on the bottom plate 9 is provided with a supporting plate 8, the supporting plate 8 is of an L-shaped structure, the bottom surface of the L-shaped structure is provided with threaded holes, the corresponding position on the bottom plate 9 is provided with the same threaded holes, and the supporting plate 8 is fixed on the bottom plate 9 by threaded fit of bolts 81 and the two threaded holes. The supporting plate 8 is provided with a hydraulic cylinder 5, and a push rod of the hydraulic cylinder 5 penetrates through the supporting plate 8 to push the pushing plate 6 arranged at the top end of the push rod. During detection, the hydraulic cylinder 5 pushes the pushing plate 6, the cast iron pipe to be detected is hung on the detection device, one end of the cast iron pipe is aligned with the bearing plate 3, the through hole 31 is aligned with the end face of the cast iron pipe, compressed air output by the air cylinder 2 can be introduced into the cast iron pipe, and the pushing plate 6 pushes the end face of the cast iron pipe to fix the cast iron pipe between the pushing plate 6 and the bearing plate 3 under the pushing of the hydraulic cylinder 5. The through hole 31 may be a threaded hole, and when other products need to be detected by the air source, a pipe joint with external threads may be connected to one end of the flexible hose, such as a rubber pipe, and the pipe joint is screwed into the through hole 31, so that the air source can be led out to the other products.

In order to ensure the stability of the fixation of the cast iron pipe, a supporting bracket 7 can be further arranged, the supporting bracket 7 is detachably connected with the bottom plate 9, and the detachable mode is divided into two modes:

in the first mode, screw holes are formed in the bottom plate 9, through holes are formed in the support bracket 7, and bolts 81 penetrate through the through holes and are in threaded fit with the screw holes formed in the bottom plate 9 to fix the support bracket 7.

In the second mode, the bottom plate 9 is provided with the groove 91, the bracket 7 is pushed into the groove 91 from one end of the groove 91, the cross section of the groove 91 is trapezoid for enhancing stability, and further, a threaded hole can be formed in the bottom surface of the groove 91 and fixed through a bolt.

The following describes the operation of the present utility model to enhance understanding of the present utility model, and is specifically described as follows:

during detection, the support bracket 7 is pushed into the groove 91 from one end of the groove 91, the cast iron pipe is hoisted and placed on the support bracket 7, the end face of the cast iron pipe is aligned with the through hole 31, the hydraulic cylinder 5 is started, the hydraulic cylinder 5 pushes the push plate 6 to press and fix the cast iron pipe between the push plate 6 and the bearing plate 3, after fixing, the valve 4 is opened, the air compressor is started, air enters the cast iron pipe through the through hole 31, soapy water is coated on the cast iron pipe, when the observation pressure gauge 21 reaches the detection regulated pressure, the air compressor is stopped, the operation is maintained for 10 minutes, the condition that the soapy water is air bubble is observed, if the air bubble is enlarged and broken, the cast iron pipe quality is unqualified, and if the quality is not qualified.

In the present utility model, the terms "connected," "fixed," and the like should be construed broadly unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "embodiment" or "connection manner" and the like refer to a particular feature, structure, or characteristic described in connection with the embodiment or example being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations of the above embodiments within the scope of the utility model should be considered as being within the scope of the utility model.

Claims

1. The utility model provides a flexible cast iron pipe sealing performance detection device, its characterized in that, includes air compressor (1) and bottom plate (9), the output pipeline of air compressor (1) is connected with cylinder (2), cylinder (2) set up on bottom plate (9), output pipeline (22) of cylinder (2) have at least one branch road to connect bearing plate (3), bearing plate (3) with through-hole (31) are seted up in the position that output pipeline (22) corresponds, be provided with backup pad (8) on bottom plate (9), be provided with pneumatic cylinder (5) on backup pad (8), pneumatic cylinder (5) push rod pass backup pad (8) promote and set up push plate (6) on the push rod top.

2. A device for detecting the sealing properties of flexible cast iron pipes according to claim 1, characterized in that a valve (4) is arranged in the branch of the output line (22).

3. A device for detecting the sealing performance of a flexible cast iron pipe according to claim 1, further comprising a support bracket (7), wherein the support bracket (7) is detachably connected with the bottom plate (9).

4. A device for detecting the sealing performance of a flexible cast iron pipe according to claim 3, characterized in that the bottom plate (9) is provided with a groove (91).

5. A device for detecting the sealing performance of a flexible cast iron pipe as claimed in claim 4, wherein the cross section of said groove (91) is of a trapezoid structure.

6. A device for detecting the sealing performance of a flexible cast iron pipe as claimed in claim 3, and is characterized by comprising a bolt (81), wherein the bottom plate (9) is provided with a threaded hole, the support bracket (7) is provided with a through hole, and the bolt (81) passes through the through hole to be in threaded fit with the threaded hole formed in the bottom plate (9).

7. A device for detecting the sealing performance of a flexible cast iron pipe according to claim 1, wherein the supporting plate (8) is of an L-shaped structure, and the supporting plate (8) is connected with the bottom plate (9) through bolts (81).

8. A device for detecting the sealing performance of a flexible cast iron pipe according to claim 1, wherein the through hole (31) is a threaded hole.

9. The flexible cast iron pipe sealing performance detection device according to any one of claims 1 to 7, wherein a pressure gauge (21) is mounted on top of the cylinder (2).