Pressing and pulling-back integrated directional drilling pulling-back head device

Abstract

The utility model discloses a pressing and pulling-back integrated directional drilling pulling-back head device which comprises a pulling-back head body and a protective sleeve, a gas guide cavity is formed in the pulling-back head body, a connecting port is formed in one end of the pulling-back head body, a connecting part is formed at the other end of the pulling-back head body, the connecting port is used for wrapping and welding the end of a gas pipe, and the protective sleeve is used for protecting the end of the gas pipe. The gas guide chamber is communicated with a connector, and the connector is communicated with a gas pipe; according to the tool, the pulling-back head body is arranged, the gas guide cavity and the connecting port are utilized, the pipeline pressure testing procedure which must be completed before pulling-back is achieved, the pulling-back head body is utilized to be connected with the gas pipe, then the pressure testing pipe is arranged, pressure testing experiments can be conducted on the gas pipe under the condition that the pulling-back head body does not need to be disassembled, and after the experiments are completed, the pressure testing pipe can be used for testing the pressure of the gas pipe. The pull-back construction can be carried out without installing the pull-back head body again, the whole pressure testing and pull-back time is greatly shortened, the overall efficiency is improved, and the overall structure is simple and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of gas, in particular to a pressure-return-return integrated directional drilling and re-return head device. Background Art

[0002] Before the construction of the gas pipe, it needs to be buried and pulled back. Before pulling back, the pipeline should be welded with a pressure head separately, and the overall pressure test should be carried out on the pulling back pipeline. After 1 hour, the pipeline pressure is qualified and the pressure in the pipe is released, and the pulling back head is welded again. The whole process from welding the pressure head to welding the pulling back head after the pressure is qualified will take nearly 2 hours. If the pressure is unstable due to weather or welding reasons, the pressure observation time will be longer, resulting in an increase in the time of the next process and a longer waiting time for personnel and machinery. The announcement number is CN213683980U, which discloses a new type of directional drilling double-tube different-diameter same-hole pulling back head, which is characterized by: including a pulling back pipe, a pulling back plate is fixedly connected to the front end of the pulling back pipe, one end of the pulling back plate is inserted into the pulling back pipe, and one side of the pulling back plate extends out of the side wall of the pulling back pipe and is connected to the optical cable casing hanging ear, and the front end of the pulling back pipe is blocked by the pulling back pipe plug. The utility model solves the problems that the conventional main return-drag plate cannot hang and drag the optical cable casing, and the optical cable casing may fall off when it is fixed by binding or other methods, in the construction of the double-tube return-drag of the main return-drag tube and the optical cable casing of the horizontal directional drilling, and the main return-drag tube is rigidly connected with the optical cable casing, and the offset design ensures that the optical cable casing will not have excessive tension or casing breakage. The utility model is used to simultaneously return and drag the main return-drag tube and the optical cable casing, saving project costs and avoiding other risks that may occur when the optical cable casing is returned alone. However, the return-drag head needs to be installed and connected to the gas pipe after the gas pipe is pressure tested, which makes the overall pressure test and return-drag time long. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a practical directional drilling traction head device with integrated pressure-retraction and traction.

[0004] To achieve the above-mentioned purpose, the utility model provides a solution as follows: a pressure-return integrated directional drilling return head device, comprising a return head body and a protective cover, wherein a gas guide chamber is formed inside the return head body, a connection port is opened at one end of the return head body, and a connection portion is formed at the other end, wherein the connection port is used to wrap and weld the end of the gas pipe, the gas guide chamber is connected to the connection port, and the connection port is connected to the gas pipe;

[0005] The outer wall of the connecting part is provided with a pressure testing tube and a first return drag plate. The pressure testing tube is connected to the air guide chamber. A switch valve is provided on the pressure testing tube. The first return drag plate is provided with a first connecting hole. The connecting part is connected to a protective cover. The protective cover is used to wrap the pressure testing tube and the first return drag plate. The protective cover has a conical structure. A second return drag plate is formed at the end of the protective cover. The second return drag plate is provided with a second connecting hole. The pressure testing tube extends out of the protective cover.

[0006] The beneficial effects of the utility model are as follows: reducing the pressure test and back-pulling time of the gas pipe. The tool realizes the pipeline pressure test process that must be completed before back-pulling by setting a back-pulling head main body and utilizing the gas guide chamber and the connecting port. The gas pipe is connected by the back-pulling head main body, and then a pressure test pipe is set. The gas pipe can be pressure tested without disassembling the back-pulling head main body, and after the test is completed, the back-pulling construction can be carried out without reinstalling the back-pulling head main body, which greatly reduces the entire pressure test and back-pulling time, improves the overall efficiency, and the overall structure is simple and practical.

[0007] Furthermore, the connecting portion is in a truncated cone structure.

[0008] Furthermore, an installation groove is formed on the outer side wall of the protective sleeve, and the installation groove is used for the pressure test tube to extend out.

[0009] Furthermore, the mounting groove extends along the length direction of the protective sleeve.

[0010] Furthermore, the connecting portion and the protective sleeve are fixed by welding.

[0011] Furthermore, a plurality of first fixing holes are opened on the outer wall of the connecting part, and a plurality of first connecting blocks are formed on the opposite side of the protective cover and the connecting part. The plurality of first connecting blocks correspond to the plurality of first fixing holes one by one, and the first connecting blocks are fixed to the first fixing holes by screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the overall structure of the first embodiment of the present utility model.

[0013] Figure 2 Decomposition of the first embodiment of the utility model Figure 1 .

[0014] Figure 3 Decomposition of the first embodiment of the utility model Figure 2 .

[0015] Figure 4 This is a three-dimensional diagram of the overall structure of the second embodiment of the present utility model.

[0016] Figure 5This is an exploded view of the second embodiment of the present utility model.

[0017] Among them, 1 is the return head body, 11 is the air guide chamber, 12 is the connection port, 13 is the connection part, 14 is the pressure test tube, 15 is the first return plate, 151 is the first connection hole, 16 is the first fixing hole, 2 is the protective cover, 21 is the second return plate, 211 is the second connection hole, 22 is the installation groove, and 23 is the first connection block. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Example

[0020] See attached Figure 1 To Attachment Figure 3 As shown, a pressure-return integrated directional drilling return head device includes a return head body 1 and a protective cover 2. An air guide chamber 11 is formed inside the return head body 1. A connecting port 12 is opened at one end of the return head body 1, and a connecting portion 13 is formed at the other end. The connecting port 12 is used to wrap and weld the end of the gas pipe. The air guide chamber 11 is connected to the connecting port 12, and the connecting port 12 is connected to the gas pipe.

[0021] A pressure test tube 14 and a first return plate 15 are provided on the outer wall of the connecting portion 13. The pressure test tube 14 is connected to the air guide chamber 11. A switch valve is provided on the pressure test tube 14. The first return plate 15 has a first connecting hole 151. The connecting portion 13 is connected to the protective cover 2. The protective cover 2 is used to wrap the pressure test tube 14 and the first return plate 15. The protective cover 2 has a conical structure. A second return plate 21 is formed at the end of the protective cover 2. The second return plate 21 has a second connecting hole 211. The pressure test tube 14 extends out of the protective cover 2.

[0022] In this embodiment, the connecting portion 13 is a truncated cone structure.

[0023] In this embodiment, an installation groove 22 is formed on the outer wall of the protective cover 2 . The installation groove 22 is used for the pressure testing tube 14 to extend out. The installation groove 22 extends along the length direction of the protective cover 2 .

[0024] In this embodiment, the connecting portion 13 and the protective cover 2 are fixed by welding.

[0025] In this embodiment, the switch valve may be a ball valve.

[0026] In this embodiment, the specific assembly process is as follows: first, the return head body 1 is connected to the end of the gas pipe, wherein the end of the gas pipe is inserted into the gas guide chamber 11 through the connection port 12, and then the contact between the gas pipe and the return head body 11 is welded to ensure sealing;

[0027] At this time, it is decided whether to install the protective cover 2 according to the actual situation in the ground. When there are many impurities in the ground, which is easy to collide and damage the pressure test pipe 14, the protective cover 2 needs to be installed, wherein the protective cover 2 covers the connection part 13, and the pressure test pipe 14 extends through the installation groove 22, and the protective cover 2 is connected and fixed to the connection part 13 by welding; if the protective cover 2 is not needed, the gas pipe brought back to the tractor body 1 is directly buried;

[0028] Alternatively, the gas pipe with the tractor body 1 and the protective cover 2 can be buried, and the gas pipe can be filled with gas at this time, and then the pressure test pipe 14 can be connected, and then the switch valve on the pressure test pipe 14 can be opened to make the gas in the gas pipe be output through the gas guide chamber 11 and the pressure test pipe 14, and the gas pipe can be subjected to an overall pressure test. After the set time, the pressure of the gas pipe is tested to be qualified, and the pressure in the gas pipe is removed through the pressure test pipe 14, and finally the first connection hole 151 of the first return towing plate 15 or the second connection hole 211 of the second return towing plate 21 is connected by a hook, and the gas pipe can be pulled out, which can greatly reduce the pressure test and return towing process time of the gas pipe. Example

[0029] See attached Figure 4 To Attachment Figure 5 As shown, a pressure-return integrated directional drilling return head device includes a return head body 1 and a protective cover 2. An air guide chamber 11 is formed inside the return head body 1. A connecting port 12 is opened at one end of the return head body 1, and a connecting portion 13 is formed at the other end. The connecting port 12 is used to wrap and weld the end of the gas pipe. The air guide chamber 11 is connected to the connecting port 12, and the connecting port 12 is connected to the gas pipe.

[0030] A pressure test tube 14 and a first return plate 15 are provided on the outer wall of the connecting portion 13. The pressure test tube 14 is connected to the air guide chamber 11. A switch valve is provided on the pressure test tube 14. The first return plate 15 has a first connecting hole 151. The connecting portion 13 is connected to the protective cover 2. The protective cover 2 is used to wrap the pressure test tube 14 and the first return plate 15. The protective cover 2 has a conical structure. A second return plate 21 is formed at the end of the protective cover 2. The second return plate 21 has a second connecting hole 211. The pressure test tube 14 extends out of the protective cover 2.

[0031] In this embodiment, the connecting portion 13 is a truncated cone structure.

[0032] In this embodiment, an installation groove 22 is formed on the outer wall of the protective cover 2 . The installation groove 22 is used for the pressure testing tube 14 to extend out. The installation groove 22 extends along the length direction of the protective cover 2 .

[0033] In this embodiment, the switch valve may be a ball valve.

[0034] In this embodiment, a plurality of first fixing holes 16 are opened on the outer wall of the connecting portion 13, and a plurality of first connecting blocks 23 are formed on the opposite side of the protective cover 2 and the connecting portion 13. The plurality of first connecting blocks 23 correspond to the plurality of first fixing holes 16 one by one, respectively, and the first connecting blocks 23 are fixed to the first fixing holes 16 by screws.

[0035] In this embodiment, the specific assembly process is as follows: first, the return head body 1 is connected to the end of the gas pipe, wherein the end of the gas pipe is inserted into the gas guide chamber 11 through the connection port 12, and then the contact between the gas pipe and the return head body 11 is welded to ensure sealing;

[0036] At this time, it is decided whether to install the protective cover 2 according to the actual situation in the ground. When there are many impurities in the ground and the pressure test tube 14 is easily damaged by collision, the protective cover 2 needs to be installed, wherein the protective cover 2 covers the connection part 13, and the pressure test tube 14 is extended through the installation groove 22, and the screws are passed through the first connection block 23 and the first fixing hole 16 in sequence to realize the connection and fixation of the protective cover 2 with the return tractor body 1; if the protective cover 2 is not needed, the gas pipe brought back to the tractor body 1 is directly buried;

[0037] Alternatively, the gas pipe with the tractor body 1 and the protective cover 2 can be buried, and the gas pipe can be filled with gas at this time, and then the pressure test pipe 14 can be connected, and then the switch valve on the pressure test pipe 14 can be opened to make the gas in the gas pipe be output through the gas guide chamber 11 and the pressure test pipe 14, and the gas pipe can be subjected to an overall pressure test. After the set time, the pressure of the gas pipe is tested to be qualified, and the pressure in the gas pipe is removed through the pressure test pipe 14, and finally the first connection hole 151 of the first return towing plate 15 or the second connection hole 211 of the second return towing plate 21 is connected by a hook, and the gas pipe can be pulled out, which can greatly reduce the pressure test and return towing process time of the gas pipe.

[0038] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A directional drilling traction head device with integrated pressure and traction, comprising a traction head body (1) and a protective cover (2), characterized in that: An air guide chamber (11) is formed inside the return head body (1); a connection port (12) is formed at one end of the return head body (1), and a connection portion (13) is formed at the other end; the connection port (12) is used to wrap and weld the end of the gas pipe; the air guide chamber (11) is connected to the connection port (12), and the connection port (12) is connected to the gas pipe; The outer wall of the connecting portion (13) is provided with a pressure test tube (14) and a first return plate (15); the pressure test tube (14) is connected to the air guide chamber (11); a switch valve is provided on the pressure test tube (14); the first return plate (15) is provided with a first connection hole (151); the connecting portion (13) is connected to a protective sleeve (2); the protective sleeve (2) is used to wrap the pressure test tube (14) and the first return plate (15); the protective sleeve (2) is in a conical structure; a second return plate (21) is formed at an end of the protective sleeve (2); the second return plate (21) is provided with a second connection hole (211); and the pressure test tube (14) extends out of the protective sleeve (2).

2. The integrated directional drilling and pulling back head device according to claim 1 is characterized in that: The connecting portion (13) is in a truncated cone structure.

3. The integrated directional drilling and pulling-back head device according to claim 1 is characterized in that: The outer wall of the protective sleeve (2) is provided with a mounting groove (22), and the mounting groove (22) is used for allowing the pressure test tube (14) to extend out.

4. The integrated directional drilling and pulling-back head device according to claim 3 is characterized in that: The installation groove (22) extends along the length direction of the protective sleeve (2).

5. The integrated directional drilling and pulling-back head device according to claim 4 is characterized in that: The connecting portion (13) and the protective sleeve (2) are fixed by welding.

6. The integrated directional drilling and pulling-back head device according to claim 4 is characterized in that: The outer wall of the connecting portion (13) is provided with a plurality of first fixing holes (16); the side of the protective cover (2) opposite to the connecting portion (13) is provided with a plurality of first connecting blocks (23); the plurality of first connecting blocks (23) correspond to the plurality of first fixing holes (16) respectively, and the first connecting blocks (23) are connected and fixed to the first fixing holes (16) by screws.

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