Fixing device

Abstract

The utility model discloses a fixing device, which is used for fixing a first pipeline and a second pipeline to be communicated, and comprises a connecting rod extending along the vertical direction; the first fixing piece is arranged on the connecting rod, the first fixing piece is provided with a first placing surface extending in the horizontal direction, and the first placing surface is used for placing a first flange; and the second fixing piece is arranged on the connecting rod, the second fixing piece is arranged below the first fixing piece in the vertical direction, a second placing face extending in the horizontal direction is arranged on the second fixing piece, the second placing face is arranged above the second flange, so that the second flange provides supporting force for the second fixing piece, and the distance between the first fixing piece and the second fixing piece is adjustable. The first pipeline above the valve can be lifted and supported, and therefore the problem that the first pipeline above the valve sinks due to the influence of the gravity of the first pipeline, and installation of a new valve and normal use of the pipeline are affected can be solved.

Description

Technical Field

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

[0002] As a carrier for conveying fluid media, pipelines are widely used. Affected by the actual installation space, pipelines are usually divided into risers set in the vertical direction and transverse pipes set in the horizontal direction. In order to realize the conveying or cutting of fluid media, valves are usually installed on the pipelines, and the types include but are not limited to butterfly valves, ball valves, gate valves, etc. Usually, flanges are provided at the ends of the pipelines, and the valves are set between the two flanges. After long-term use, valves often fail to shut off, leak, and mechanically damage due to wear, corrosion of the valve body, and adhesion of impurities, which will affect the normal use of the pipeline. When repairing or replacing the valve, the old valve needs to be removed from between the two pipelines. When the valve is removed, the riser located above the valve will be affected by its own gravity and sink, reducing the distance between the two pipelines, thereby affecting the installation of the new valve and the normal use of the pipeline. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that when the valve is repaired or replaced, the riser above the valve will be affected by its own gravity and sink, which affects the installation of the new valve and the normal use of the pipeline. The utility model provides a fixing device that can lift and support the riser above the valve, thereby preventing the riser above the valve from sinking due to its own gravity, affecting the installation of the new valve and the normal use of the pipeline.

[0004] In order to solve the above technical problems, the embodiment of the utility model discloses a fixing device for fixing a first pipeline and a second pipeline to be connected, the first pipeline and the second pipeline are both arranged in a vertical direction, a first flange is provided at the lower end of the first pipeline, and a second flange is provided at the upper end of the second pipeline, and the fixing device comprises:

[0005] A connecting rod extending in a vertical direction;

[0006] A first fixing member is arranged on the connecting rod, and a first placement surface extending in a horizontal direction is arranged on the first fixing member, and the first placement surface is used for placing the first flange;

[0007] The second fixing member is arranged on the connecting rod. The second fixing member is arranged below the first fixing member in the vertical direction. The second fixing member is provided with a second placement surface extending in the horizontal direction. The second placement surface is placed on the second flange so that the second flange provides supporting force for the second fixing member. The distance between the first fixing member and the second fixing member is adjustable.

[0008] When in use, first adjust the distance between the first fixing member and the second fixing member so that the first placement surface fits with the lower end surface of the first flange, and the second placement surface fits with the upper end surface of the second flange. Then remove the old valve. At this time, the supporting function of the valve is lost, and the first pipe and the first flange are pressed against the first placement surface under the action of their own weight. The second flange can provide supporting force to the second fixing member so that the first placement surface supports and lifts the first flange to prevent the first flange and the first pipe from moving downward. After that, install the new valve, and remove the fixing device after the new valve is installed. With the above technical solution, when replacing the old valve, the fixing device can lift and support the first pipe above the valve, thereby preventing the first pipe above the valve from sinking due to its own gravity, affecting the installation of the new valve and the normal use of the pipe.

[0009] Optionally, the connecting rod includes a first rod body and a second rod body connected to each other, the first rod body is located above the second rod body, the diameter of the first rod body is smaller than the diameter of the second rod body, a step surface is formed between the first rod body and the second rod body, and the first fixing member is provided with a through hole, the diameter of the through hole is greater than or equal to the diameter of the first rod body and smaller than the diameter of the second rod body, the through hole is sleeved on the first rod body, and the lower end surface of the first fixing member is in contact with the step surface.

[0010] Optionally, the first fixing member includes:

[0011] A first fixed block, the first placement surface is arranged on the first fixed block;

[0012] A third fixing block is arranged above the first fixing block, and the through hole passes through the first fixing block and the third fixing block;

[0013] The first locking member is used to apply a clamping force to the first fixing block and the third fixing block, so that the third fixing block and the first fixing block clamp the first flange.

[0014] Optionally, a stopper is detachably connected to the upper end of the first rod body, and the stopper is used to prevent the first fixing member from sliding out of the connecting rod.

[0015] Optionally, at least two first connecting holes are provided on the first fixing block and the third fixing block, the number of the first locking members is at least two, the first locking members are first bolts, and each first bolt is respectively inserted into the first connecting holes of the first fixing block and the third fixing block to connect the first fixing block and the third fixing block.

[0016] Optionally, the second rod body is provided with an external thread, the second fixing member is provided with a first threaded hole, and the second rod body is inserted into the first threaded hole and threadedly connected with the first threaded hole.

[0017] Optionally, the second fixing member includes:

[0018] A second fixed block, the second placement surface being arranged on the second fixed block;

[0019] The fourth fixing block is arranged below the second fixing block, and the first threaded hole passes through the second fixing block and the fourth fixing block;

[0020] The second locking member is used to apply a clamping force to the second fixing block and the fourth fixing block so that the second fixing block and the fourth fixing block clamp the second flange.

[0021] Optionally, at least two second connecting holes are provided on the second fixing block and the fourth fixing block, the number of the second locking members is at least two, the second locking members are second bolts, and each second bolt is respectively inserted into the second connecting holes of the second fixing block and the fourth fixing block to connect the second fixing block and the fourth fixing block.

[0022] Optionally, the first fixed block is provided with a first notch that passes through the upper surface and side wall of the first fixed block, the bottom surface of the first notch is a first placement surface, the side wall of the first notch is a first limiting surface, the first limiting surface is perpendicular to the first placement surface, and when the first flange is placed on the first placement surface, the first limiting surface contacts the side wall of the first flange to limit the movement of the first flange toward the direction close to the connecting rod.

[0023] Optionally, the second fixed block is provided with a second notch that passes through the lower surface and side wall of the second fixed block, the side wall of the second notch is a second limiting surface, the top surface of the second notch is a second placement surface, the side wall of the second notch is a second limiting surface, the second limiting surface is perpendicular to the second placement surface, and when the second placement surface is placed above the second flange, the second limiting surface contacts the side wall of the second flange to limit the movement of the second flange toward the direction close to the connecting rod.

[0024] Optionally, the number of connecting rods, first fixing members and second fixing members are all two, each connecting rod is provided with a first fixing member and a second fixing member, the two connecting rods are horizontally arranged on both sides of the first flange, the two first fixing members are used to fix the first flange, and the two second fixing members are used to fix the second flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram showing the structure of a fixing device in an embodiment of the utility model is shown;

[0026] Figure 2 A schematic diagram showing the fixing device in an embodiment of the utility model in a usage scenario.

[0027] Figure markings: 1. first pipe, 2. second pipe, 3. first flange, 4. second flange, 5. connecting rod, 6. first fixing member, 7. first placement surface, 8. second fixing member, 9. second placement surface, 10. first rod body, 11. second rod body, 12. through hole, 13. first fixing block, 14. third fixing block, 15. first locking member, 16. stopper, 18. first threaded hole, 19. second fixing block, 20. fourth fixing block, 21. second locking member, 23. first notch, 24. first limiting surface, 25. second notch, 26. second limiting surface. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 a limitation on the utility model.

[0031] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0032] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 2 As shown, the embodiment of the utility model discloses a fixing device for fixing a first pipe 1 and a second pipe 2 to be connected, wherein the first pipe 1 and the second pipe 2 are both connected in a vertical direction (such as Figure 2 The lower end of the first pipe 1 (the "lower" position is as shown in the Y direction) is arranged. Figure 2 A first flange 3 is provided, and the upper end of the second pipe 2 (the "upper" direction is the same as that shown in FIG. Figure 2 A second flange 4 is provided in the direction opposite to the direction A. Figure 2 As shown, the fixing device includes: a connecting rod 5, a first fixing member 6 and a second fixing member 8. The connecting rod 5 extends in the vertical direction. The first fixing member 6 is arranged on the connecting rod 5, and a first placement surface 7 extending in the horizontal direction is provided on the first fixing member 6, the first placement surface 7 faces upward, and the first placement surface 7 is used to place the first flange 3. The second fixing member 8 is arranged on the connecting rod 5, and the second fixing member 8 is arranged below the first fixing member 6 in the vertical direction. The second fixing member 8 is provided with a second placement surface 9 extending in the horizontal direction, the second placement surface 9 faces downward, and the second placement surface 9 is used to be placed on the second flange 4, so that the second flange 4 provides a supporting force for the second fixing member 8, and the distance between the first fixing member 6 and the second fixing member 8 is adjustable. Preferably, the connecting rod 5 is made of 40Cr alloy steel, and the first fixing member 6 and the second fixing member 8 are made of alloy steel to improve the overall structural strength of the fixing device.

[0035] When in use, first adjust the distance between the first fixing member 6 and the second fixing member 8 so that the first placement surface 7 fits with the lower end surface of the first flange 3, and the second placement surface 9 fits with the upper end surface of the second flange 4, and then remove the old valve. At this time, the supporting function of the valve is lost, and the first pipeline 1 and the first flange 3 are pressed against the first placement surface 7 under the action of their own weight. The second flange 4 can provide supporting force to the second fixing member 8, so that the first placement surface 7 supports and lifts the first flange 3 to prevent the first flange 3 and the first pipeline 1 from moving downward. After that, install the new valve, and remove the fixing device after the new valve is installed. When replacing the old valve, the above technical solution is adopted. The fixing device provided by the utility model can lift and support the first pipeline 1 above the valve, thereby preventing the first pipeline 1 above the valve from sinking due to its own gravity, affecting the installation of the new valve and the normal use of the pipeline.

[0036] Alternatively, if Figure 1 As shown, the connecting rod 5 includes a first rod body 10 and a second rod body 11 connected to each other, the first rod body 10 is located above the second rod body 11, the diameter of the first rod body 10 is smaller than the diameter of the second rod body 11, and a step surface (not shown in the figure) is formed at the connection between the first rod body 10 and the second rod body 11. A through hole 12 is provided on the first fixing member 6, and the diameter of the through hole 12 is greater than or equal to the diameter of the first rod body 10 and smaller than the diameter of the second rod body 11. The through hole 12 is sleeved on the first rod body 10, and the lower end surface of the first fixing member 6 is in contact with the step surface, which can limit the downward movement of the first fixing member 6 to limit the first fixing member 6.

[0037] Alternatively, if Figure 1 As shown, the first fixing member 6 includes a first fixing block 13, a third fixing block 14 and a first locking member 15 which are arranged in sequence from bottom to top. Among them, the first placement surface 7 is arranged on the first fixing block 13; the third fixing block 14 is arranged above the first fixing block 13, and the through hole 12 passes through the first fixing block 13 and the third fixing block 14; the first locking member 15 is used to apply a clamping force to the first fixing block 13 and the third fixing block 14, so that the third fixing block 14 and the first fixing block 13 clamp the first flange 3. Specifically, two first connecting holes (not shown in the figure) are provided on the first fixing block 13 and the third fixing block 14, and the number of the first locking members 15 is two, as shown in FIG. Figure 1 The first connection hole on the first fixing block 13 is a threaded hole, the first connection hole on the third fixing block 14 is a through hole, the first locking member 15 is a first bolt, and each first bolt is inserted into the first connection hole of the first fixing block 13 and the first connection hole of the third fixing block 14, so that the first fixing block 13 and the third fixing block 14 are connected.

[0038] By adopting the above technical solution, on the one hand, the distance between the first fixing block 13 and the third fixing block 14 can be adjusted to adapt to the thickness of the first flange 3; on the other hand, the first fixing block 13 and the third fixing block 14 can clamp the first flange 3, thereby improving the stability of the connection and preventing the first pipe 1 from falling off the first placement surface 7 due to slipping between the first placement surface 7 and the first flange 3.

[0039] Alternatively, if Figure 1 As shown, the upper end of the first rod body 10 is detachably connected with a stopper 16. Specifically, the upper end of the first rod body 10 is provided with an external thread, and the stopper 16 is a nut, which is threadedly connected to the external thread to prevent the first fixing member 6 from sliding out of the connecting rod 5.

[0040] Alternatively, if Figure 1 As shown, the lower end of the second rod body 11 is provided with an external thread, the second fixing member 8 is provided with a first threaded hole 18, the second rod body 11 is inserted into the first threaded hole 18 and is threadedly connected with the first threaded hole 18, and the distance between the second placement surface 9 and the first placement surface 7 is changed by changing the position of the second fixing member 8 on the second rod body 11 to adapt to the spacing between the first flange 3 and the second flange 4. Specifically, when the distance between the second placement surface 9 and the first placement surface 7 is not equal to the spacing between the first flange 3 and the second flange 4, the second placement surface 9 is first placed on the upper end surface of the second flange 4, and the second fixing block 19 and the fourth fixing block 20 clamp the second flange 4, and then the operator holds the second fixing member 8 so that the second fixing member 8 cannot rotate, and rotates the connecting rod 5 at the same time, at this time, the connecting rod 5 will move up and down in the vertical direction relative to the second fixing member 8, thereby driving the first fixing member 6 to move up and down in the vertical direction, so as to change the distance between the first placement surface 7 and the second placement surface 9 to make it equal to the spacing between the first flange 3 and the second flange 4.

[0041] Alternatively, if Figure 1 As shown, the second fixing member 8 includes a second fixing block 19, a fourth fixing block 20 and a second locking member 21 which are arranged in sequence from top to bottom. The second placement surface 9 is arranged on the second fixing block 19; the fourth fixing block 20 is arranged below the second fixing block 19, and the first threaded hole 18 passes through the second fixing block 19 and the fourth fixing block 20; the second locking member 21 is used to apply a clamping force to the second fixing block 19 and the fourth fixing block 20, so that the second fixing block 19 and the fourth fixing block 20 clamp the second flange 4.

[0042] Specifically, the second fixing block 19 and the fourth fixing block 20 are each provided with two second connecting holes (not shown in the figure), and the number of the second locking members 21 is two. Figure 1The second connection hole on the fourth fixing block 20 is a through hole, the second connection hole on the second fixing block 19 is a threaded hole, the second locking member 21 is a second bolt, and each second bolt is inserted into the second connection hole of the fourth fixing block 20 and the second fixing block 19 from bottom to top, so that the second fixing block 19 and the fourth fixing block 20 are connected.

[0043] By adopting the above technical solution, on the one hand, the distance between the second fixing block 19 and the fourth fixing block 20 can be adjusted to adapt it to the thickness of the second flange 4. On the other hand, the second fixing block 19 and the fourth fixing block 20 can clamp the second flange 4, thereby improving the stability of the connection and preventing the second placement surface 9 from slipping with the second flange 4, causing the second fixing block 19 to fall off the second flange 4.

[0044] Alternatively, if Figure 1 and Figure 2 As shown, the first fixing block 13 is provided with a first notch 23 which passes through the upper surface and the side wall of the first fixing block 13, the bottom surface of the first notch 23 is the first placement surface 7, the side wall of the first notch 23 is the first limiting surface 24, the first limiting surface 24 is perpendicular to the first placement surface 7, when the first flange 3 is placed on the first placement surface 7, the first limiting surface 24 contacts the side wall of the first flange 3 to limit the movement of the first flange 3 in the direction close to the connecting rod 5, thereby limiting the displacement of the first flange 3 in the horizontal direction.

[0045] Optionally, the second fixing block 19 is provided with a second notch 25 which passes through the lower surface and side wall of the second fixing block 19, the side wall of the second notch 25 is a second limiting surface 26, the top surface of the second notch 25 is a second placement surface 9, the side wall of the second notch 25 is a second limiting surface 26, the second limiting surface 26 is perpendicular to the second placement surface 9, and when the second placement surface 9 is placed above the second flange 4, the second limiting surface 26 contacts the side wall of the second flange 4 to limit the movement of the second flange 4 in the direction close to the connecting rod 5, thereby limiting the displacement of the second flange 4 in the horizontal direction.

[0046] Alternatively, if Figure 2 As shown, the number of connecting rods 5, first fixing members 6 and second fixing members 8 are all two, and each connecting rod 5 is provided with a first fixing member 6 and a second fixing member 8. The two connecting rods 5 are horizontally arranged on both sides of the first flange 3. The two first fixing members 6 are used to fix the first flange 3, and the two second fixing members 8 are used to fix the second flange 4.

[0047] With the above technical solution, the two second fixing members 8 are both arranged on the second flange 4, and the second flange 4 can provide support force to the two second fixing members 8, so that the two first fixing members 6 can provide support force to the first flange 3 at the same time, so that the forces on both sides of the first pipeline 1 are balanced, and the first pipeline 1 can be better prevented from being offset in the vertical direction. At the same time, the first flange 3 is clamped between the two first fixing members 6, and compared with only one first fixing member 6, it can prevent the first flange 3 from slipping with the first placement surface 7, thereby improving the stability of the connection.

[0048] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A fixing device, used for fixing a first pipeline and a second pipeline to be connected, wherein the first pipeline and the second pipeline are both arranged in a vertical direction, a first flange is provided at the lower end of the first pipeline, and a second flange is provided at the upper end of the second pipeline, characterized in that: The fixing device comprises: A connecting rod extending in a vertical direction; A first fixing member is disposed on the connecting rod, wherein the first fixing member is provided with a first placement surface extending in a horizontal direction, and the first placement surface is used for placing the first flange; A second fixing member is arranged on the connecting rod, and the second fixing member is arranged below the first fixing member in the vertical direction. The second fixing member is provided with a second placement surface extending in the horizontal direction, and the second placement surface is used to be placed on the second flange so that the second flange provides a supporting force for the second fixing member, and the distance between the first fixing member and the second fixing member is adjustable.

2. The fixing device according to claim 1, characterized in that The connecting rod includes a first rod body and a second rod body connected to each other, the first rod body is located above the second rod body, the diameter of the first rod body is smaller than the diameter of the second rod body, a step surface is formed between the first rod body and the second rod body, the first fixing member is provided with a through hole, the diameter of the through hole is greater than or equal to the diameter of the first rod body and smaller than the diameter of the second rod body, the through hole is sleeved on the first rod body, and the lower end surface of the first fixing member is in contact with the step surface.

3. The fixing device according to claim 2, characterized in that: The first fixing member includes: A first fixed block, wherein the first placement surface is arranged on the first fixed block; A third fixing block is arranged above the first fixing block, and the through hole passes through the first fixing block and the third fixing block; The first locking member is used to apply a clamping force to the first fixing block and the third fixing block, so that the third fixing block and the first fixing block clamp the first flange.

4. The fixing device according to claim 3, characterized in that: The upper end of the first rod body is detachably connected with a stopper, and the stopper is used to prevent the first fixing member from sliding out of the connecting rod.

5. The fixing device according to claim 4, characterized in that: The first fixing block and the third fixing block are each provided with at least two first connecting holes, the number of the first locking members is at least two, the first locking members are first bolts, and the first bolts are respectively inserted into the first connecting holes of the first fixing block and the third fixing block to connect the first fixing block and the third fixing block.

6. The fixing device according to claim 2, characterized in that: The second rod body is provided with an external thread, the second fixing member is provided with a first threaded hole, and the second rod body is inserted into the first threaded hole and is threadedly connected with the first threaded hole.

7. The fixing device according to claim 6, characterized in that: The second fixing member includes: a second fixing block, wherein the second placement surface is arranged on the second fixing block; a fourth fixing block, disposed below the second fixing block, wherein the first threaded hole passes through the second fixing block and the fourth fixing block; The second locking member is used to apply a clamping force to the second fixing block and the fourth fixing block so that the second fixing block and the fourth fixing block clamp the second flange.

8. The fixing device according to claim 7, characterized in that: The second fixing block and the fourth fixing block are each provided with at least two second connecting holes, the number of the second locking members is at least two, the second locking members are second bolts, and the second bolts are respectively inserted into the second connecting holes of the second fixing block and the fourth fixing block to connect the second fixing block and the fourth fixing block.

9. The fixing device according to claim 3, characterized in that: The first fixing block is provided with a first notch which passes through the upper surface and side wall of the first fixing block, the bottom surface of the first notch is the first placing surface, the side wall of the first notch is the first limiting surface, the first limiting surface is perpendicular to the first placing surface, and when the first flange is placed on the first placing surface, the first limiting surface contacts with the side wall of the first flange to limit the first flange from moving in a direction close to the connecting rod.

10. The fixing device according to claim 7, characterized in that: The second fixing block is provided with a second notch that passes through the lower surface and side wall of the second fixing block, the top surface of the second notch is the second placing surface, the side wall of the second notch is the second limiting surface, the second limiting surface is perpendicular to the second placing surface, and when the second placing surface is placed above the second flange, the second limiting surface contacts the side wall of the second flange to limit the second flange from moving in a direction close to the connecting rod.

11. The fixing device according to claim 7, characterized in that: The number of the connecting rods, the first fixing parts and the second fixing parts are all two, each of the connecting rods is provided with one of the first fixing parts and one of the second fixing parts, the two connecting rods are arranged on both sides of the first flange in the horizontal direction, the two first fixing parts are used to fix the first flange, and the two second fixing parts are used to fix the second flange.

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