Pipe fitting tapping device suitable for underground pipe network

Abstract

The utility model provides a pipe fitting trepanning device suitable for an underground pipe network, which can be used for drilling under pressure, can be suitable for drilling various types of underground pipe networks, is convenient to assemble, improves the working efficiency, and comprises a first arc-shaped sleeve, a second arc-shaped sleeve, a flat flange gate valve and a trepanning pipe, first strip-shaped connecting pieces are arranged on the two sides of the first arc-shaped sleeve, second strip-shaped connecting pieces are arranged on the two sides of the second arc-shaped sleeve, a plurality of second connecting holes are formed in the second strip-shaped connecting pieces, and bolts penetrate through the first connecting holes and the second connecting holes to assemble the first arc-shaped sleeve and the second arc-shaped sleeve into a cylindrical shape; a flange short pipe is arranged on the second arc-shaped sleeve or the first arc-shaped sleeve; the flat flange gate valve is assembled on the flange short pipe, and the closing or opening direction of a gate plate in the flat flange gate valve is perpendicular to the hole opening direction. The tapping pipe is connected with the flat flange gate valve, and a tapping assembly which enters or exits from the tapping direction is assembled in the tapping pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline opening field, specifically, relate to a pipe fitting trepanning device suitable for underground pipe network. BACKGROUND

[0002] Underground pipe network bears water supply, drainage, gas, heat and other functions, and is an indispensable part of city daily operation. In many cases such as adding pipeline, pipeline repair, drilling is often involved. For example, during pipeline detection, a drilling machine or a drill bit is controlled by a person on the ground to advance and rotate into the ground, thereby forming a hole in the ground. Through the hole, drilling and equipment installation can be carried out without directly damaging the underground pipeline.

[0003] However, during drilling by the drilling machine, the excavation surface is not large, and the soil may collapse, causing the soil to enter the pipeline, which needs to be cleaned, and the drilling work of the water supply pipeline or the gas pipeline is not convenient. The pressure in the water supply pipeline and the gas pipeline is high, and water and gas can be easily sprayed out, so the drilling operation needs to be closed for water supply or gas, which affects the water and gas use of the surrounding citizens, and the overall efficiency is low. SUMMARY

[0004] The utility model aims at providing a pipe fitting trepanning device suitable for underground pipe network, which can carry out pressure drilling and is suitable for drilling of various types of underground pipe network, is easy to assemble and improves work efficiency.

[0005] The embodiment of the utility model is implemented as follows:

[0006] A pipe fitting trepanning device suitable for underground pipe network comprises a first arc-shaped sleeve, a second arc-shaped sleeve, a flat flange gate valve and a trepanning pipe. First arc-shaped sleeves are provided with first strip-shaped connecting pieces on both sides, and the first strip-shaped connecting pieces are provided with a plurality of first connecting holes. Second arc-shaped sleeves are provided with second strip-shaped connecting pieces on both sides, and the second strip-shaped connecting pieces are provided with a plurality of second connecting holes. First arc-shaped sleeves and second arc-shaped sleeves are assembled into a cylindrical shape by bolts passing through the first connecting holes and the second connecting holes. Flange short pipes are arranged on the second arc-shaped sleeves or the first arc-shaped sleeves. Flat flange gate valves are assembled on the flange short pipes, and the closing or opening direction of the gate plate in the flat flange gate valve is perpendicular to the trepanning direction. The trepanning pipe is connected with the flat flange gate valve, and the trepanning pipe is provided with a trepanning assembly entering or exiting from the trepanning direction.

[0007] In the preferable embodiment of the utility model, the above-mentioned flat flange gate valve comprises: a gate valve body and a gate plate assembly, the gate valve body is flat, the front surface of the gate valve body is connected and fastened with the flange surface of the flange short pipe through bolts; the bottom surface of the gate valve body is provided with a second flange surface connecting surface; the side surface of the gate valve body is provided with a flat gate plate slot for the gate plate to pass through; the gate plate body is further provided with a circular hole penetrating through the front surface and the bottom surface; the gate plate assembly is arranged in the flat gate plate slot, and the gate plate is controlled to be opened or blocked through the electric actuating mechanism.

[0008] In the preferable embodiment of the utility model, the above-mentioned gate plate comprises a gate plate body, a hollow cavity is arranged in the inside of the gate plate body, one side of the gate plate body close to the flange short pipe is provided with a circular recess area, and the circular recess area is provided with an air bag; an air pipe connected with the air bag is arranged in the hollow cavity; a distance sensor is arranged on the bottom of the gate plate body.

[0009] In the preferable embodiment of the utility model, the above-mentioned electric actuating mechanism comprises an electric telescopic piece for controlling the gate plate body to open or block the circular hole and an air pump for controlling the air bag to be inflated and flattened, and the telescopic rod of the electric telescopic piece is connected with the top of the gate plate body; the air pump is connected with the air pipe.

[0010] In the preferable embodiment of the utility model, one side of the above-mentioned air bag is provided with a port connected with the air pipe; the middle part of the air bag is a flat capsule, the flat capsule is provided with air paths radiating from the center to the periphery; the outer edge of the air bag is provided with an air bag body, the air bag body is composed of a plurality of connected small block fan-shaped air bags to form an annular air bag, and one air path is connected to one fan-shaped air bag.

[0011] In the preferable embodiment of the utility model, the above-mentioned perforated pipe is a cylinder with a bottom, the opening surface of the perforated pipe is provided with a second flange surface, the second flange surface is connected with the second flange connecting surface of the gate valve body through bolts; the bottom of the perforated pipe is provided with an assembly hole for assembling the perforating assembly.

[0012] In the preferable embodiment of the utility model, the above-mentioned perforating assembly comprises: a perforating motor and a cylinder cutter, a center drill, the perforating motor is connected with the bottom surface of the perforated pipe, the output shaft of the perforating motor is inserted into the assembly hole; the cylinder cutter is assembled on the output shaft; the center drill is assembled on the output shaft, and the drilling surface of the center drill is longer than the surface of the cylinder cutter.

[0013] The utility model discloses an embodiment has the advantages of:

[0014] 1, through the arc-shaped sleeve of split type is assembled to the pipe body to be perforated, and the assembly is quick and time-saving;

[0015] 2, the flat flange gate valve is assembled on the flange short pipe of the pipe sleeve, is used for sealing in time after perforating, avoids gas leakage, and can realize quick pressure drilling;

[0016] 3. The flange short pipe is arranged on the arc sleeve, which can avoid the collapse of soil into the pipeline, and ensure the pipeline cleanliness during the drilling, repairing or connecting process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0018] Figure 1 The structure schematic view when the pipe opening device of the embodiments of the present application starts drilling;

[0019] Figure 2 The structure schematic view when the pipe opening device of the embodiments of the present application ends drilling;

[0020] Figure 3 The structure schematic view of the arc sleeve of the embodiments of the present application;

[0021] Figure 4 The structure schematic view of the air bag of the embodiments of the present application;

[0022] Figure 5 The circuit connection structure schematic view of the pipe opening device of the embodiments of the present application.

[0023] Icon: first arc sleeve 1; first strip-shaped connecting plate 11; second arc sleeve 2; second strip-shaped connecting plate 21; flat plate flange gate valve 3; gate valve body 31; flat gate plate groove 311; circular hole 312; gate plate body 321; hollow cavity 322; circular recessed area 323; air bag 324; port 3241; flat bag body 3242; air path 3243; fan-shaped air bag 3244; distance sensor 325; air pump 33; electric telescopic part 34; opening pipe 4; second flange surface 41; opening assembly 42; opening motor 421; barrel knife 422; center drill 423; flange short pipe 5; controller 6. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] First embodiment

[0031] Please refer to Figures 1-5 The present embodiment provides a pipe opening device suitable for underground pipe network, which comprises: a first arc-shaped sleeve 1 covering a pipe to be opened, a second arc-shaped sleeve 2, a flat flange gate valve 3 connected to the first arc-shaped sleeve 1 or the second arc-shaped sleeve 2, and an opening pipe 4, wherein the flat flange gate valve 3 is used to seal the opening pipe 4 section, the opening pipe 4 is used to assemble the opening assembly, and the opening is fast.

[0032] The first arc-shaped sleeve 1 and the second arc-shaped sleeve 2 have substantially the same structure, and their main function is to reinforce the pipe segment to be drilled, and a 180° arc plate is used as a group to be wrapped on the original pipeline, and the difference is that a flange short pipe 5 is arranged on any one of the arc-shaped sleeves, and the flange short pipe 5 and the arc-shaped sleeve are fixedly connected, preferably by welding, to ensure the sealing property.

[0033] Specifically, the first arc-shaped sleeve 1 is provided with a first strip-shaped connecting piece 11 on both sides, and a plurality of first connecting holes are arranged on the first strip-shaped connecting piece 11; the second arc-shaped sleeve 2 is provided with a second strip-shaped connecting piece 21 on both sides, and a plurality of second connecting holes are arranged on the second strip-shaped connecting piece 21, and the first arc-shaped sleeve 1 and the second arc-shaped sleeve 2 are assembled into a cylindrical shape by means of bolts penetrating through the first connecting holes and the second connecting holes. Among them, the flange short pipe 5 is arranged on the second arc-shaped sleeve 2 or the first arc-shaped sleeve 1, which is easy to assemble the flat flange gate valve 3, and is convenient for the coaxiality and centring of the opening assembly and the flange short pipe 5.

[0034] Further, a flexible sealing sleeve for providing sealing can also be arranged on the first arc-shaped sleeve 1 and the second arc-shaped sleeve 2, which can be arranged only at the flange short pipe 5, or can be laid on the inner wall of the first arc-shaped sleeve 1 and the second arc-shaped sleeve 2. A cushion layer that can match different pipe diameters can also be arranged on the first arc-shaped sleeve 1 and the second arc-shaped sleeve 2.

[0035] In the embodiment, the flat flange gate valve 3 is assembled on the flange short pipe 5, and the closing or opening direction of the gate plate in the flat flange gate valve 3, that is, the travel direction of the gate plate, is perpendicular to the opening direction.

[0036] The flat flange gate valve 3 comprises a gate valve body 31 and a gate plate assembly, the gate valve body 31 is a flat plate block, and the front surface of the gate valve body 31 is fastened by bolt connection with the flange surface of the flange short pipe 5; the bottom surface of the gate valve body 31 is provided with a second flange surface connecting surface for connecting the opening pipe 4.

[0037] The side surface of the gate valve body 31 is provided with a flat gate plate groove 311 for the gate plate to pass through; the gate plate body is further provided with a circular hole 312 penetrating through the front surface and the bottom surface; the gate plate assembly is arranged in the flat gate plate groove 311, and the gate plate is controlled to be opened or blocked to the circular hole 312 by means of an electric actuator.

[0038] The gate plate 32 comprises a gate plate body 321, the inside of the gate plate body 321 is provided with a hollow cavity 322, one side of the gate plate body 321 close to the flange short pipe 5 is provided with a circular recess area 323, the circular recess area 323 is provided with an air bag 324; the hollow cavity 322 is provided with an air pipe connected with the air bag 324; the bottom of the gate plate body 321 is provided with a distance sensor 325, further in order to facilitate the air pipe arrangement, the air pipe selects a spiral spring air pipe, which can meet the extension and contraction requirements, and can meet the air injection and exhaust requirements.

[0039] The electric actuator comprises an electric telescopic part for controlling the opening or blocking of the circular hole 312 of the gate plate body 321 and an air pump 33 for controlling the inflation and flattening of the air bag 324, the telescopic rod of the electric telescopic part 34 is connected to the top of the gate plate body 321; the air pump 33 is connected to the air pipe, and the air source in the embodiment is preferably nitrogen. When the bottom of the gate plate body 321 enters the flat gate plate groove 311, the air pump 33 is opened, the air bag 324 rapidly expands, blocks the gap between the gate plate body 321 and the flange short pipe 5, and prevents external overflow.

[0040] Further, in order to save the inflation time of the air bag 324, the structure of the air bag 324 is also designed. One side of the air bag 324 is provided with a port 3241 connected with the air pipe; the middle part of the air bag 324 is a flat bag body 3242, the flat bag body 3242 is provided with air paths 3243 diverging from the center to the periphery; the outer edge of the air bag 324 is provided with an air bag body, the air bag body is an annular air bag 324 composed of a plurality of connected small sector-shaped air bags 3244, and one air path 3243 is connected to one sector-shaped air bag 3244.

[0041] In the embodiment, only the annular air bag 324 of the air bag is inflated, the inflation amount is small, so that the blocking time is fast; at the same time, each sector-shaped air bag 3244 is connected, and each sector-shaped air bag 3244 is further provided with an air path, so that the inflation speed and the sealing speed are fast.

[0042] The open pipe 4 is connected with the flat plate flange gate valve 3, and the open pipe 4 is assembled with an open assembly entering or exiting from the open direction.

[0043] Specifically, the open pipe 4 is a cylinder with a bottom, the open surface of the open pipe 4 is provided with a second flange surface 41, the second flange surface 41 is connected with the second flange connecting surface of the gate valve body 31 through bolts; the bottom of the open pipe 4 is provided with an assembly hole for assembling the open assembly.

[0044] The opening assembly 42 comprises an opening motor 421 and a barrel cutter 422, and a center drill 423. The opening motor 421 is connected to the bottom surface of the opening pipe 4, and the output shaft of the opening motor 421 is inserted into the assembly hole. The barrel cutter 422 is assembled on the output shaft, which is used to polish the surface of the pipe body to be drilled, facilitating the connection or pipe repair in the later stage. The center drill 423 is assembled on the output shaft, and the drilling surface of the center drill 423 is longer than that of the barrel cutter 422, which is used for actual drilling.

[0045] The pipe opening device further comprises a controller 6, the input end of the controller 6 being connected to the opening motor 421 and the distance sensor 325. The use state of the opening motor 421 is determined by obtaining the output length of the opening motor 421, and the use state of the gate plate 32 of the flat flange gate valve 3 is determined by obtaining the detection value of the distance sensor 325. The output end of the controller 6 is connected to the air pump 33, the opening motor 421 and the motor of the electric telescopic part 34, which is used to control the use state of the air bag 324, whether to open the hole or close the gate plate 32.

[0046] The use mode of the pipe opening device is as follows:

[0047] The first arc-shaped sleeve 1 and the second arc-shaped sleeve 2 are assembled on the pipe body to be opened, the flange short pipe 5 is rotated to the drilling point, and then the first arc-shaped sleeve 1 and the second arc-shaped sleeve 2 are locked after the drilling point is kept centered.

[0048] The bolt is passed through the flange short pipe 5 and the flat flange gate valve 3, and the flat flange gate valve 3 is connected. Similarly, the opening pipe 4 is assembled on the flat flange gate valve 3 by using the bolt.

[0049] The controller 6 starts the opening motor 421, and the opening motor 421 moves forward in the direction of the drilling point. The barrel cutter 422 polishes the outer wall of the pipe section while drilling. After drilling, it is quickly retracted, and whether the electric telescopic part 34 is started is controlled according to the retraction length.

[0050] When the preset value is reached, the electric telescopic part 34 is started, and the gate plate 32 is controlled to move to the groove bottom of the flat gate plate groove 311. When the distance sensor 325 reaches the threshold range, the controller 6 automatically starts the air pump 33 to inject gas into the air bag 324, and the air bag 324 blocks the flange short pipe 5.

[0051] The data reports and materials are sorted as needed and reported to the supervisor and the first party. The construction site is arranged and the environment is kept clean, which is suitable for drilling of various types of underground pipe networks.

[0052] In summary, the pipe opening device has the following advantages:

[0053] 1. The arc-shaped sleeve is assembled on the pipe body to be opened, which is fast and time-saving.

[0054] 2. The flat flange gate valve is assembled on the flange short pipe 5 of the pipe sleeve, is used in timely sealing after the drilling, avoids the gas and the like leakage, can realize the fast drilling under pressure;

[0055] 3. The flange short pipe is arranged on the arc sleeve, can avoid the soil collapse into the pipeline, guarantees the pipeline cleanliness in the drilling, repairing or pipe connecting process.

[0056] The specification describes examples of embodiments of the present application, and does not mean that these embodiments illustrate and describe all possible forms of the present application. It should be understood that the embodiments in the specification can be implemented in a plurality of alternative forms. The drawings need not be drawn to scale; some features can be enlarged or reduced to show details of specific components. The specific structure and functional details disclosed should not be interpreted as a limiting explanation, but only as a representative basis for teaching those skilled in the art to implement the present application in various forms. Those skilled in the art should understand that the features described with reference to any one drawing and description can be combined with the features described in one or more other drawings to form embodiments that are not explicitly described or illustrated. The combined features provide representative embodiments for typical applications. However, various combinations and variations of features consistent with the teachings of the present application can be used as needed for specific applications or implementations.

[0057] The above only describes the preferred embodiments of the present application and does not limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe fitting opening device suitable for underground pipe networks, characterized in that, include: A first arc-shaped sleeve, wherein a first strip-shaped connecting piece is provided on both sides of the first arc-shaped sleeve, and a plurality of first connecting holes are provided on the first strip-shaped connecting piece; The second arc-shaped sleeve has second strip-shaped connecting pieces on both sides, and multiple second connecting holes on the second strip-shaped connecting pieces. The first arc-shaped sleeve and the second arc-shaped sleeve are assembled into a cylindrical shape by bolts passing through the first connecting holes and the second connecting holes; a flange short pipe is provided on the second arc-shaped sleeve or the first arc-shaped sleeve. A flat flange gate valve, wherein the flat flange gate valve is mounted on the flange short pipe, and the closing or opening direction of the gate plate inside the flat flange gate valve is perpendicular to the opening direction; An opening pipe is connected to the flat flange gate valve, and an opening assembly is installed inside the opening pipe that can enter or exit from the opening direction. Flat flange gate valves include: The gate valve body is flat and the front of the gate valve body is fastened to the flange face of the flange short pipe by bolts; the bottom surface of the gate valve body is provided with a second flange face connection surface; the side of the gate valve body is provided with a flat gate plate groove for the gate plate to pass through; the gate valve body is also provided with a circular hole penetrating the front and bottom surfaces. A gate assembly is disposed within the flat gate groove and is controlled by an electric actuator to open or block the circular hole. The gate includes a gate body, the gate body has a hollow cavity inside, a circular recessed area is provided on the side of the gate body near the flange short pipe, and an air bladder is provided in the circular recessed area; an air pipe connected to the air bladder is provided in the hollow cavity; and a distance sensor is provided at the bottom of the gate body. The electric actuator includes an electric telescopic component that controls the opening or blocking of the circular hole of the gate body and an air pump that controls the inflation and deflation of the airbag. The telescopic rod of the electric telescopic component is connected to the top of the gate body; the air pump is connected to the air pipe.

2. The pipe fitting opening device suitable for underground pipe networks according to claim 1, characterized in that, One side of the airbag is provided with a port for connecting to the trachea; the middle part of the airbag is a flat bladder, and the flat bladder is provided with air passages radiating outward from the center; the outer edge of the airbag is provided with an airbag body, and the airbag body is an annular airbag composed of multiple connected small fan-shaped airbags, and one of the air passages is connected to one of the fan-shaped airbags.

3. The pipe fitting opening device suitable for underground pipe networks according to claim 1, characterized in that, The perforated tube is a cylindrical body with a sealed bottom. The opening surface of the perforated tube is provided with a second flange surface, which is connected to the second flange connection surface of the gate valve body by bolts. The sealed bottom of the perforated tube is provided with an assembly hole for assembling the perforation assembly.

4. The pipe fitting opening device suitable for underground pipe networks according to claim 3, characterized in that, The opening assembly includes: A perforated motor is connected to the sealing bottom surface of the perforated tube, and the output shaft of the perforated motor is inserted into the assembly hole. A cylindrical cutter, which is mounted on the output shaft; A center drill, which is mounted on the output shaft, has a drill face that is longer than the face of the cutter.

Images