Pipeline anti-loosening fixing device

Abstract

The utility model relates to the technical field of pipeline maintenance, and discloses a pipeline anti-loosening fixing device, which comprises a first movable joint, a second movable joint, a first fastening piece, a second fastening piece and a locking piece, the first movable joint provided with a first nut and the second movable joint provided with a second nut are respectively arranged on two adjacent pipelines; the first fastening piece is provided with a first elastic groove with the groove wall attached to the outer contour of the first nut, the second fastening piece is provided with a second elastic groove with the groove wall attached to the outer contour of the second nut, and the first fastening piece and the second fastening piece are connected with the first nut and the second nut in a clamped mode through the first elastic groove and the second elastic groove respectively. And then the first fastening piece and the second fastening piece are locked through the locking piece, so that the fixing device for increasing the strength of the connecting position of the first movable joint and the second movable joint is obtained, and the problem that the pipeline movable joint is prone to loosening due to equipment vibration, and consequently pressure oil gas leaks is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to a pipeline anti-loosening fixing device. Background Art

[0002] Electricity is an important energy source in industrial production, and thermal power plants are important facilities for producing this energy.

[0003] Thermal power plants contain numerous pipelines equipped with numerous flexible joints. When the units connected to these pipelines are operating, the vibrations generated by the units may cause the flexible joints to loosen, posing a safety risk. This is especially true for pipelines connected to the speed-regulating EH oil system. If these pipelines become loose, the control system may experience a loss of pressure, forcing an emergency shutdown of the unit. This not only impacts the safety of the unit equipment, but also impacts the power grid, leading to significant economic losses. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pipeline anti-loosening fixing device, which solves the problem in the prior art that pipeline flexible joints are easily loosened due to equipment vibration, thereby causing pressurized oil and gas to leak.

[0005] In order to solve the above technical problems, the utility model provides a pipeline anti-loosening fixing device, which includes:

[0006] First union;

[0007] a second flexible joint, wherein the first flexible joint and the second flexible joint are respectively provided on two adjacent pipes, a first nut is installed on the first flexible joint, a second nut is installed on the second flexible joint, and the first flexible joint and the second flexible joint are detachably connected together;

[0008] a first fastener, wherein the first fastener has first tightening grooves extending through opposite ends thereof, wherein the groove walls of the first tightening grooves fit the outer contour of the first nut, and the first tightening grooves are engaged with the first nut;

[0009] a second fastener, wherein the second fastener has second tightening grooves extending through opposite ends thereof, the groove walls of the second tightening grooves being in contact with the outer contour of the second nut, and the second tightening grooves being engaged with the second nut;

[0010] A plurality of locking members, wherein the plurality of locking members lock the first fastener and the second fastener. At this time, the central axes of the first elastic groove and the second elastic groove are in the same straight line, and one of the diagonals of the projection of the first elastic groove along the length direction of the central axis intersects with one of the diagonals of the projection of the second elastic groove along the length direction of the central axis.

[0011] As an optional solution, a first entry opening communicating with the first tightening groove is further formed on one side of the first fastener, and the first entry opening is used for allowing the first nut to pass through and enter the first tightening groove;

[0012] A second entry opening communicating with the second tightening groove is further formed on one side of the second fastener, and the second entry opening is used for allowing the second nut to pass through and enter the second tightening groove.

[0013] As an optional solution, the first tightening groove includes a first groove wall and a second groove wall arranged opposite to each other, and the first feed port is arranged between the first groove wall and the second groove wall, and the distance between the first groove wall and the second groove wall is equal to the pitch of the first nut;

[0014] The second tightening groove includes a third groove wall and a fourth groove wall that are arranged opposite to each other, and the second feed port is arranged between the third groove wall and the fourth groove wall, and the distance between the third groove wall and the fourth groove wall is equal to the pitch of the second nut.

[0015] As an optional solution, the first fastening member is in contact with the second fastening member.

[0016] As an optional solution, the first fastener includes a first main body and a first connecting portion, the first feed port is opened on one side of the first main body, the first connecting portion is connected to the other side of the first main body, and the first elastic groove is provided on the first main body;

[0017] The second fastener includes a second main body and a second connecting portion, the second feed port is opened on one side of the second main body, the second connecting portion is connected to the other side of the second main body, and the second elastic groove is provided on the second main body;

[0018] The locking member connects the first connecting portion and the second connecting portion to lock the first fastening member and the second fastening member.

[0019] As an optional solution, the first main body and the first connecting part are flush on both sides of the central axis of the first elastic groove; the second main body and the second connecting part are flush on one side in the direction of the central axis of the second elastic groove and are in contact with the first fastener, and on the other side, the second main body protrudes from the second connecting part.

[0020] As an optional solution, the first connecting portion protrudes from the first main body portion in a direction perpendicular to the central axis of the first elastic groove;

[0021] The second connecting portion protrudes from the second main body portion in a direction perpendicular to a central axis of the second elastic groove.

[0022] As an optional solution, the first connecting portion is provided with a plurality of first connecting grooves;

[0023] The first connecting groove passes through two opposite end surfaces of the first connecting portion, and the axis of the first connecting groove is parallel to the axis of the first elastic groove;

[0024] The second connecting portion is provided with a plurality of second connecting grooves, the second connecting grooves passing through two opposite end surfaces of the second connecting portion, and the axes of the second connecting grooves are parallel to the axes of the second elastic grooves;

[0025] The central axes of the first connecting groove and the second connecting groove are the same straight line, and the first connecting groove and the second connecting groove are locked by a locking member.

[0026] As an alternative, the locking member is a stud or a bolt.

[0027] Compared with the prior art, the pipeline anti-loosening fixing device according to the embodiment of the utility model has the following beneficial effects: the first fastener and the second fastener of the embodiment of the utility model are respectively provided with a first loosening groove and a second loosening groove, the first fastener is clamped with the first nut on the first flexible joint through the first loosening groove, and the second fastener is clamped with the second nut on the second flexible joint through the second loosening groove, and then the first fastener and the second fastener are locked using a locking member to fix the relative positions of the first fastener, the second fastener, the locking member and the two flexible joints, thereby completing the fastening of the pipeline and the flexible joint, and solving the problem that the pipeline flexible joint is easily loosened due to equipment vibration, thereby causing pressurized oil and gas to leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall schematic diagram of the utility model;

[0029] Figure 2 It is a top view of the utility model;

[0030] Figure 3 It is a schematic diagram of the parts of the left fastener of the utility model;

[0031] Figure 4 It is a side view of the components of the left fastener of the utility model;

[0032] Figure 5 It is a schematic diagram of the parts of the right fastener of the utility model;

[0033] Figure 6 It is a side view of the parts of the right fastener of the utility model;

[0034] In the figure, 1. first fastener; 101. first main body; 1011. first elastic groove; 1012. first feed port; 1012a. first end face; 1012b. second end face; 102. first connecting part; 1021. first connecting groove; 2. second fastener; 201. second main body; 2011. second elastic groove; 2012. second feed port; 2012a. third end face; 2012b. fourth end face; 202. second connecting part; 2021. second connecting groove; 3. first flexible joint; 301. first nut; 4. second flexible joint; 401. second nut; 5. locking member. DETAILED DESCRIPTION

[0035] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figures 1 to 2 As shown, the utility model provides a pipeline anti-loosening fixing device, which includes: a first flexible joint 3, a second flexible joint 4, a first fastener 1, a second fastener 2 and a plurality of locking members 5.

[0037] The first flexible joint 3 and the second flexible joint 4 are respectively arranged on two adjacent pipes. A first nut 301 is installed on the first flexible joint 3, and the inner wall of the first nut 301 is fixedly connected to the first flexible joint 3. A second nut 401 is installed on the second flexible joint 4, and the inner wall of the second nut 401 is fixedly connected to the second flexible joint 4. The first flexible joint 3 and the second flexible joint 4 are detachably connected together.

[0038] The specific position of the first flexible joint 3 or the second flexible joint 4 is not further limited here. The first flexible joint 3 can be set in the pipe on the left or the pipe on the right, and the second flexible joint 4 can be set in the pipe on the left or the pipe on the right.

[0039] There is no further limitation on the pipe diameter connected to the first flexible joint 3 or the second flexible joint 4. Pipes or flexible joints of different sizes and specifications can be connected to the first fastener 1 through a first nut 301 with adapted specifications, and pipes or flexible joints of different sizes and specifications can be connected to the second fastener 2 through a second nut 401 with adapted specifications.

[0040] The first fastener 1 is provided with a first tightening groove 1011 running through its opposite ends. The groove wall of the first tightening groove 1011 fits the outer contour of the first nut 301, and the first tightening groove 1011 is clamped with the first nut 301. Preferably, the groove wall of the first tightening groove 1011 is a hexagonal groove wall, which is adapted to the outer contour of the first nut 301.

[0041] The second fastener 2 is provided with a second tightening groove 2011 running through its opposite ends. The groove wall of the second tightening groove 2011 fits the outer contour of the second nut 401, and the second tightening groove 2011 is clamped with the second nut 401. Preferably, the groove wall of the second tightening groove 2011 is also a hexagonal groove wall, which is adapted to the second nut 401.

[0042] The first nut 301 and the second nut 401 may be nuts of exactly the same specifications, so that the first tightening groove 1011 and the second tightening groove 2011 have exactly the same size.

[0043] Several of the locking members 5 lock the first fastener 1 and the second fastener 2. At this time, the central axes of the first tightening groove 1011 and the second tightening groove 2011 are in the same straight line. The first tightening groove 1011 and the second tightening groove 2011 can form a connecting channel so that a pipe or a flexible joint can pass through the middle.

[0044] One of the diagonals of the projection of the first tightening groove 1011 along the length direction of the central axis intersects with one of the diagonals of the projection of the second tightening groove 2011 along the length direction of the central axis. The rotation angle of the first nut 301 in the first tightening groove 1011 is different from the rotation angle of the second nut 401 in the second tightening groove 2011. Therefore, although the first fastener 1 and the second fastener 2 are subjected to the same amplitude of vibration given by the unit equipment after locking, the steering forces between them can offset each other to some extent, thereby making the connection between the first movable joint and the second movable joint fixed in this application document more secure.

[0045] Based on this, the first nut 301 on the first flexible joint 3 is clamped on the first fastener 1 through the first tightening groove 1011, and the second nut 401 on the second flexible joint 4 is clamped on the second fastener 2 through the second tightening groove 2011. When the locking member 5 locks the first fastener 1 and the second fastener 2, the first flexible joint 3 and the second flexible joint 4, which are originally detachably connected together, are restricted as a whole by the first fastener 1, the second fastener 2 and the locking member 5. They remain relatively stationary with each other without the parts being damaged, thereby increasing the structural strength of the first flexible joint and the second flexible joint at the connection part, thereby solving the problem that the pipeline flexible joint is easily loosened due to equipment vibration, thereby causing pressurized oil and gas to leak.

[0046] Furthermore, this embodiment is not shown in the accompanying drawings. The space size of the first tightening groove 1011 can meet the needs of the first nut 301 entering from above or below. A first clamping assembly including a first clamping slider and a first clamping bolt is also provided in the groove wall of the first tightening groove 1011. The first clamping assembly is arranged in a circular array with the central axis of the first tightening groove 1011 as the center, and at least two first clamping assemblies are provided in opposite directions.

[0047] A first mounting groove is formed on the groove wall of the first tightening groove 1011 , and a first clamping slider is slidably arranged in the first mounting groove. The opening direction of the first mounting groove points to the central axis of the first tightening groove 1011 .

[0048] The sliding direction of the first clamping slider is parallel to the line segment from the central axis of the first tightening groove 1011 to the center point of the first clamping slider. When the first clamping slider needs to clamp the first nut 301, the end face of the first clamping slider adjacent to the central axis of the first tightening groove 1011 is in contact with the outer contour of the first nut 301 and provides an extrusion force toward the first nut 301. Therefore, the first clamping slider is tightly fitted with the first nut 301 when sliding, so that multiple first clamping components can cooperate to clamp the first nut 301.

[0049] The first clamping bolt is fixedly arranged at one end of the first clamping slider away from the groove wall of the first tightening groove 1011, and the length direction of the first clamping bolt is parallel to the sliding direction of the first clamping slider. One end of the first clamping bolt is fixedly connected to the first clamping slider, and the other end of the first clamping bolt passes through the first tightening piece and extends out. The first fastener 1 is provided with a threaded hole at the corresponding position for the sliding of the first clamping bolt. When the first clamping bolt slides in the threaded hole, it drives the first clamping slider to expand and contract in the first tightening groove 1011, thereby clamping the first flexible joint 3.

[0050] The structures of the plurality of second clamping assemblies are the same as those of the first clamping assemblies, and the plurality of second clamping assemblies are arranged on the second fastening member 2 in a mirror-image manner.

[0051] The first clamping assembly and the second clamping assembly provide more options for the connection between the first flexible joint and the first fastener, and the second flexible joint and the second fastener.

[0052] Further, if Figures 2 to 6 As shown, a first feed port 1012 connected to the first tightening groove 1011 is further opened on one side of the first fastener 1. The first feed port 1012 is used for allowing the first nut 301 to pass through and enter the first tightening groove 1011. The first feed port 1012 cuts a portion of the first fastener 1. The first feed port 1012 enables the first nut 301 to enter the first tightening groove 1011 laterally.

[0053] A second feed port 2012 connected to the second tightening groove 2011 is also provided on one side of the second fastener 2. The second feed port 2012 is used for allowing the second nut 401 to pass through and enter the second tightening groove 2011. The second feed port 2012 cuts a portion of the second fastener 2. The second feed port 2012 enables the second nut 401 to enter the second tightening groove 2011 laterally.

[0054] The arrangement of the first feed port 1012 and the second feed port 2012 enables the fixing device to be installed without disconnecting the first flexible joint 3 and the second flexible joint 4 .

[0055] Further, if Figures 2 to 6 As shown, the first tightening groove 1011 includes a first groove wall and a second groove wall that are opposite to each other, and the first feed port 1012 is arranged between the first groove wall and the second groove wall, and the distance between the first groove wall and the second groove wall is equal to the pitch of the first nut 301. After the first feed port 1012 is set, the first tightening groove 1011 only includes four groove walls, of which only two groove walls are opposite to each other, and these two groove walls are the first groove wall and the second groove wall.

[0056] The end face of the first fastener 1 that is adjacent to the first groove wall and parallel to the central axis of the first tightening groove 1011 is the first end face 1012a, and the end face of the first fastener 1 that is adjacent to the second groove wall and parallel to the central axis of the first tightening groove 1011 is the second end face 1012b. The first feed port 1012 is composed of the first end face 1012a and the second end face 1012b. After the first nut 301 enters the first tightening groove 1011 through the first feed port 1012, the first nut 301 rotates so that its outer contour fits the groove wall of the first tightening groove 1011, thereby completing the clamping action of the first fastener 1 and the first flexible joint 3.

[0057] The second tightening groove 2011 includes a third groove wall and a fourth groove wall that are arranged opposite to each other, and the second feed port 2012 is arranged between the third groove wall and the fourth groove wall. The distance between the third groove wall and the fourth groove wall is equal to the pitch of the second nut 401.

[0058] The end face of the second fastener 2 that is adjacent to the third groove wall and parallel to the central axis of the second tightening groove 2011 is the third end face 2012a, and the end face of the second fastener 2 that is adjacent to the fourth groove wall and parallel to the central axis of the second tightening groove 2011 is the fourth end face 2012b. The second feed port 2012 is composed of the third end face 2012a and the fourth end face 2012b. After the second nut 401 enters the second tightening groove 2011 through the second feed port 2012, the second nut 401 rotates so that its outer contour fits the groove wall of the second tightening groove 2011, thereby completing the clamping action of the second fastener 2 and the second flexible joint 4.

[0059] Further, if Figures 3 to 6 As shown, the first fastener 1 is in contact with the second fastener 2, and one of the end faces of the first fastener 1 that is penetrated by the first tightening groove 1011 is in contact with one of the end faces of the second fastener 2 that is penetrated by the second tightening groove 2011. The first fastener 1 and the second fastener 2 are arranged in a close fit to facilitate technicians to install and align the first fastener 1 and the second fastener 2 on site.

[0060] Further, if Figures 3 to 6As shown, the first fastener 1 includes a first main body portion 101 and a first connecting portion 102. The volume of the first main body portion 101 is larger than the volume of the first connecting portion 102. The first main body portion 101 is used to clamp the first fastener 1, and the first connecting portion 102 is used to cooperate with the locking member 5 and the second fastener 2. The first main body portion 101 and the first connecting portion 102 distinguish their functions. The first feed port 1012 is opened on one side of the first main body portion 101, and the first connecting portion 102 is connected to the other side of the first main body portion 101. The first elastic groove 1011 is provided on the first main body portion 101.

[0061] The second fastener 2 includes a second main body 201 and a second connecting part 202. The volume of the second main body 201 is larger than that of the second connecting part 202. The second main body 201 is used to clamp the second fastener 2. The second connecting part 202 is used to cooperate with the locking member 5 and the first fastener 1. The second main body 201 and the second connecting part 202 distinguish their functions. The second feed port 2012 is opened on one side of the second main body 201. The second connecting part 202 is connected to the other side of the second main body 201. The second elastic groove 2011 is provided on the second main body 201.

[0062] There is no restriction on the specifications of the first main body 101 and the second main body 201. The specifications of the first main body 101 can be the same as those of the second main body 201 to facilitate replacement, and the specifications of the first main body 101 can also be different from those of the second main body 201 to facilitate distinction. The first connecting part 102 and the second connecting part 202 are located on the same side, and the part of the first connecting part 102 used for connection is aligned with the part of the second connecting part 202 used for connection. The first main body 101 and the second main body 201 are located on the same side.

[0063] The locking member 5 connects the first connecting portion 102 and the second connecting portion 202 to lock the first fastening member 1 and the second fastening member 2 .

[0064] The first fastener 1 and the second fastener 2 divide the component into two parts according to their functions, which saves corresponding workpiece materials to a certain extent and also enables the fixing device to be suitable for installation areas with narrower spaces.

[0065] Further, if Figures 3 to 6 As shown, the first main body portion 101 and the first connecting portion 102 are flush on both sides of the central axis of the first elastic groove 1011 , that is, the height of the first main body portion 101 is the same as the height of the first connecting portion 102 .

[0066] The second main body 201 and the second connecting portion 202 are flush with each other on one side of the central axis of the second elastic groove 2011 and are in contact with the first fastener 1. On the other side, the second main body 201 protrudes from the second connecting portion 202, and the end surface of the second fastener 2 where the second main body 201 and the second connecting portion 202 are flush with each other is in contact with the end surface of the first main body 101 and the first connecting portion 102 in the first fastener 1.

[0067] The portion of the second main body 201 protruding from the second connecting portion 202 is a boss, which is an extension of the second main body 201 along the axial direction of the second tightening groove 2011. The outer contour of the boss is the same as the outer contour of the second main body 201, and the inner wall of the boss is in contact with the second flexible joint 4. The boss provides guidance for the second flexible joint 4 during installation.

[0068] Furthermore, if Figures 3 to 6 As shown, the first connecting portion 102 protrudes from the first main body portion 101 in a direction perpendicular to the central axis of the first tightening groove 1011, and the second connecting portion 202 protrudes from the second main body portion 201 in a direction perpendicular to the central axis of the second tightening groove 2011. The setting positions of the first connecting portion 102 and the second connecting portion 202 can effectively avoid the installation positions of the first nut 301 and the second nut 401.

[0069] Furthermore, if Figures 3 to 6 As shown, a plurality of first connecting grooves 1021 are provided on the first connecting portion 102. There is no specific restriction on the number of the first connecting grooves 1021. The first connecting grooves 1021 can be arranged in an array or in an irregular manner. The first connecting grooves 1021 pass through the two opposite end faces of the first connecting portion 102, and the axis of the first connecting groove 1021 is parallel to the axis of the first elastic groove 1011.

[0070] A plurality of second connecting grooves 2021 are provided on the second connecting portion 202. There is no specific restriction on the number of the first connecting grooves 1021. The first connecting grooves 1021 can be arranged in an array or in an irregular manner. The second connecting grooves 2021 pass through the two opposite end faces of the second connecting portion 202. The axis of the second connecting groove 2021 is parallel to the axis of the second elastic groove 2011.

[0071] The central axes of the first connecting groove 1021 and the second connecting groove 2021 are the same straight line. When the first fastener 1 and the second fastener 2 need to be locked, the first connecting groove 1021 and the second connecting groove 2021 form a passage.

[0072] The number of the locking members 5 corresponds to the number of passages formed by the first connecting groove 1021 and the second connecting groove 2021. The locking member 5 locks the first fastener 1 and the second fastener 2 by passing through the passage. The locking method in which the locking member 5 is locked through the first connecting groove 1021 and the second connecting groove 2021 simplifies the installation difficulty for on-site personnel.

[0073] Further, if Figures 1 to 2 As shown, the locking member 5 is a stud or a bolt, and the first connecting groove 1021 and the second connecting groove 2021 are both threaded grooves. The first connecting groove 1021 and the second connecting groove 2021 are fixedly connected by studs or bolts. This common locking member 5 workpiece can effectively reduce the installation difficulty of on-site personnel, and it is also easier to use local materials for emergency repairs when encountering related accidents.

[0074] The working process of the present invention is as follows: first, the first flexible joint 3 and the second flexible joint 4 are detachably connected together, then, the first nut 301 is clamped into the first tightening groove 1011 of the first fastener 1 through the first feed port 1012, and the second nut 401 is clamped into the second tightening groove 2011 of the second fastener 2 through the second feed port 2012. The clamping makes the boss of the second fastener 2 face away from the first fastener 1. Finally, a corresponding number of studs are used to lock the first connection part 102 and the second connection part 202 through the first connection groove 1021 and the second connection groove 2021, thereby completing the installation of a pipeline anti-loosening fixing device.

[0075] In summary, the utility model provides a pipeline anti-loosening fixing device, which fixes the first flexible joint 3 and the second flexible joint 4 while making the fixing angles of the first nut 301 and the second nut 401 arranged thereon different. This structural setting of different angles makes it possible for the first flexible joint 3 and the second flexible joint 4 to be subjected to the same amplitude after being locked, but to restrict each other when rotating; when the first nut 301 has a rotation tendency, the second nut 401 will drive the second fastener 2 clamped therewith, whether it remains stationary or rotates in the opposite direction or rotates in the same direction but at different angles. Since the second fastener 2 is locked with the first fastener 1 by the locking member 5 at this time, the first fastener 1 and the second fastener 2 will not move relative to each other before the locking member 5 breaks, thereby limiting the possible relative rotation of the first nut 301 or the second nut 401, making the connection between the first flexible joint 3 and the second flexible joint 4 more secure, thereby solving the problem that the pipeline flexible joints are easily loosened due to vibration of related equipment, thereby causing leakage of pressurized oil and gas.

[0076] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present application. These improvements and replacements should also be regarded as the scope of protection of the present application.

Claims

1. A pipeline anti-loosening fixing device, characterized in that: The fixing device comprises: First union; a second flexible joint, wherein the first flexible joint and the second flexible joint are respectively provided on two adjacent pipes, a first nut is installed on the first flexible joint, a second nut is installed on the second flexible joint, and the first flexible joint and the second flexible joint are detachably connected together; a first fastener, wherein the first fastener has first tightening grooves extending through opposite ends thereof, wherein the groove walls of the first tightening grooves fit the outer contour of the first nut, and the first tightening grooves are engaged with the first nut; a second fastener, wherein the second fastener has second tightening grooves extending through opposite ends thereof, the groove walls of the second tightening grooves being in contact with the outer contour of the second nut, and the second tightening grooves being engaged with the second nut; A plurality of locking members, wherein the plurality of locking members lock the first fastener and the second fastener. At this time, the central axes of the first elastic groove and the second elastic groove are in the same straight line, and one of the diagonals of the projection of the first elastic groove along the length direction of the central axis intersects with one of the diagonals of the projection of the second elastic groove along the length direction of the central axis.

2. A pipeline anti-loosening fixing device according to claim 1, characterized in that: A first entry opening communicating with the first tightening groove is further formed on one side of the first fastener, and the first entry opening is used for allowing the first nut to pass through and enter the first tightening groove; A second entry opening communicating with the second tightening groove is further formed on one side of the second fastener, and the second entry opening is used for allowing the second nut to pass through and enter the second tightening groove.

3. A pipeline anti-loosening fixing device according to claim 2, characterized in that: The first tightening groove includes a first groove wall and a second groove wall that are oppositely disposed, and the first feed port is disposed between the first groove wall and the second groove wall, and the distance between the first groove wall and the second groove wall is equal to the pitch of the first nut; The second tightening groove includes a third groove wall and a fourth groove wall that are arranged opposite to each other, and the second feed port is arranged between the third groove wall and the fourth groove wall, and the distance between the third groove wall and the fourth groove wall is equal to the pitch of the second nut.

4. A pipeline anti-loosening fixing device according to claim 2, characterized in that: The first fastening member is in contact with the second fastening member.

5. A pipeline anti-loosening fixing device according to claim 4, characterized in that: The first fastener includes a first main body and a first connecting portion, the first feed port is opened on one side of the first main body, the first connecting portion is connected to the other side of the first main body, and the first elastic groove is provided on the first main body; The second fastener includes a second main body and a second connecting portion, the second feed port is opened on one side of the second main body, the second connecting portion is connected to the other side of the second main body, and the second elastic groove is provided on the second main body; The locking member connects the first connecting portion and the second connecting portion to lock the first fastening member and the second fastening member.

6. A pipeline anti-loosening fixing device according to claim 5, characterized in that: The first main body portion and the first connecting portion are flush on both sides of the central axis of the first elastic groove; The second main body and the second connecting portion are flush with each other on one side of the central axis of the second elastic groove and are in contact with the first fastener. On the other side, the second main body protrudes from the second connecting portion.

7. The pipeline anti-loosening fixing device according to claim 5, characterized in that: The first connecting portion protrudes from the first main body portion in a direction perpendicular to the central axis of the first elastic groove; The second connecting portion protrudes from the second main body portion in a direction perpendicular to a central axis of the second elastic groove.

8. The pipeline anti-loosening fixing device according to claim 5, characterized in that: The first connecting portion is provided with a plurality of first connecting grooves; The first connecting groove passes through two opposite end surfaces of the first connecting portion, and the axis of the first connecting groove is parallel to the axis of the first elastic groove; The second connecting portion is provided with a plurality of second connecting grooves, the second connecting grooves passing through two opposite end surfaces of the second connecting portion, and the axes of the second connecting grooves are parallel to the axes of the second elastic grooves; The central axes of the first connecting groove and the second connecting groove are the same straight line, and the first connecting groove and the second connecting groove are locked by a locking member.

9. The pipeline anti-loosening fixing device according to claim 1, characterized in that: The locking member is a stud or a bolt.

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