Fixing device for small diameter pipe threading and its use method

Abstract

The present invention provides a fixing device for threading a small-diameter pipe, comprising a platform plate with supporting legs, a bracket on the platform plate, and a first pipe clamp installed on the bracket; a slot hole is provided on the platform plate surface, and a second pipe clamp is installed in the slot hole; a horizontal tie rod is provided below the platform plate, and the horizontal tie rod passes through the hole on the handle of the second pipe clamp, and the two ends are fixedly connected to the connecting beam between the supporting legs; the present invention also provides a method for using the above-mentioned fixing device for threading a small-diameter pipe, wherein two brackets, one in front and one in the back, are fixedly connected to the platform plate, the first pipe clamp is fixed on the two brackets, the first pipe clamp is horizontal and the jaws are arranged upward; a slot hole is drilled on the platform plate surface, and the second pipe clamp is inserted into the slot hole, the horizontal tie rod below the platform plate passes through the hole on the handle of the second pipe clamp, and the two ends are connected to the supporting legs, the second pipe clamp is vertical and the jaws face the side; the pipe to be threaded is fixed in the jaws of the first pipe clamp and the second pipe clamp, and the present invention is easy to assemble and easy to operate, and is suitable for threading operations on pipes of any shape.

Description

Technical Field

[0001] The invention relates to a building construction device, in particular to a fixing device used in the construction of threaded small-diameter pipelines. Background Art

[0002] In the prior art, the pipe threading construction method mainly includes: (1) using a special pipe threading machine to clamp the pipe and then rotate it to thread; (2) using a pipe bench vise to clamp the pipe and then use a manual threading die to start threading at the other end of the pipe.

[0003] The above two threading methods have defects:

[0004] The patented threading machine is not easy to move between different construction sites because of its large size. If the threading machine is fixed, a large number of pipes need to be transported, which not only affects the construction progress, but also easily damages the pipes during transportation. The pipes rotate with the threading machine during the threading process. For bent pipes, there are more problems in the threading operation, or even no threading can be performed.

[0005] Although it is convenient to move pipes with a pipe bench vise, many types of pipes cannot be fixed due to the small diameter range of the pipe bench vise. In addition, the construction speed is slow, the efficiency is low, and the overall cost is high. Summary of the invention

[0006] The invention aims to provide a pipeline thread fixing device, which is not only easy to move but also applicable to many types of pipelines and has a fast construction speed.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solutions:

[0008] A fixing device for threading a small-diameter pipe comprises a platform plate, legs are arranged below the platform plate, two brackets with U-shaped notches on the top are fixedly connected to the platform plate, a first pipe clamp is mounted on the two brackets, and the first pipe clamp is arranged horizontally; a slot hole is arranged on the platform plate surface, a second pipe clamp is mounted in the slot hole, and the opening size of the slot hole is adapted to the handle of the second pipe clamp; a horizontal tie rod is arranged below the platform plate, the horizontal tie rod passes through the hole on the handle of the second pipe clamp, and both ends of the horizontal tie rod are fixedly connected to the connecting beam between the legs.

[0009] The first pipe clamp and the second pipe clamp in the device cooperate to fix the pipe in both horizontal and vertical directions. The device is easy to assemble and operate, and is suitable for threading operations on pipes of any shape.

[0010] Furthermore, the bracket is fixed to the platform plate through a moving seat, the platform plate is provided with a slide slot, and the moving seat is fixed in the slide slot through bolts. Further, the lower part of the moving seat is a fixed part, the upper part is a moving part, a guide rod is provided on the lower part, the moving part is a slider sleeved on the guide rod, and pins are provided at the positions of the slider and the guide rod.

[0011] Furthermore, both ends of the horizontal tie rod are fixedly connected to a connecting plate, which is provided with bolt holes. Both sides of the platform plate are fixedly connected to end panels parallel to the connecting plate, which are provided with long holes, and bolts are installed in the bolt holes and the long holes.

[0012] Furthermore, a spring clip is provided in the slot hole provided on the surface of the platform plate.

[0013] The method for fixing the pipeline using the above device has the following specific steps:

[0014] 1) A square steel plate is used, and the legs are welded at the bottom to form an operating platform with a certain height;

[0015] 2) A bracket is fixed on the platform plate, a U-shaped notch is formed on the top of the bracket, and two brackets are arranged one in front of the other. The front bracket is used to support and fix the front of the first pipe clamp, and the rear bracket is used to support and fix the rear handle of the first pipe clamp;

[0016] 3) Adjust the height difference between the front and rear brackets to ensure that the first pipe clamp is arranged horizontally, and the first pipe clamp mouth is arranged upward;

[0017] 4) Drill a slot hole on the platform plate surface, the size of which is larger than the second pipe clamp handle, and insert the second pipe clamp handle into the slot hole; a horizontal tie rod is arranged under the platform plate, the horizontal tie rod passes through the hole on the second pipe clamp handle, and both ends of the horizontal tie rod are connected to the legs;

[0018] 5) Adjust the second pipe clamp to be arranged vertically with its jaws facing sideways;

[0019] 6) Adjust the jaw sizes of the first pipe clamp and the second pipe clamp to fix the pipe to be threaded.

[0020] Compared with conventional construction methods, the invention is used for fixing small-diameter pipe construction technology and has the following advantages: 1. The device is assembled by combining commonly used tools in construction, which is easy to assemble and low in cost; 2. The volume of the device is greatly reduced compared with a special pipe threading machine, and it can be transported between various construction sites and is convenient to move; 3. The device is flexible in operation, simple to manufacture, and suitable for pipes of any shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the platform structure diagram in this device;

[0022] Figure 2 is a schematic diagram of the fixing structure of the first pipe clamp;

[0023] Figure 3 The second pipe clamp fixing structure diagram;

[0024] Figure 4 It is a schematic diagram of the threaded pipe fixing structure;

[0025] Figure 5 It is a schematic diagram of an improved example of the bracket installation structure;

[0026] Figure 6 Schematic diagram of an example of improved horizontal tie rod installation structure.

[0027] In the figure: platform plate-1; leg-2; front bracket-3; rear bracket-4; slot-5; first pipe clamp-6; second pipe clamp-7; pipe-9; horizontal tie rod-10; bolt-11; end plate-12; connecting beam-13; slide groove 1-1; fixed part-31; moving part-32; guide rod-33; pin-34; connecting plate 10-1; long hole 12-1; DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Figures 1 to 3 A fixing device for threading a small-diameter pipe shown in the figure comprises a platform plate 1, a support leg 2 is arranged below the platform plate 1, two brackets (3 and 4) with U-shaped grooves on the top are fixedly connected to the platform plate 1, and a first pipe clamp 6 is installed on the two brackets, and the first pipe clamp 6 is arranged horizontally with the jaws facing upward; a slot hole 5 is arranged on the plate surface of the platform plate 1, and a second pipe clamp 7 is installed in the slot hole 5, and the opening size of the slot hole 5 is adapted to the handle of the second pipe clamp 7; a horizontal tie rod 10 is arranged below the platform plate 1, and the horizontal tie rod 10 passes through the hole on the handle of the second pipe clamp 7, and the two ends are fixedly connected to the connecting beam 13 between the support legs 2.

[0030] On the basis of Example 1, further improvements to this device are as follows:

[0031] Example 2: Since two pipe clamps in the device are used to fix a pipe 9, it is obviously easier to operate if the pipe is parallel to the platform board 1. In order to avoid the relative position accuracy of the brackets being insufficient during installation, resulting in the jaws of the two pipe clamps not being in the same straight line after installation, the front bracket 4 and / or the rear bracket 3 can be set as an adjustable structure. The front bracket 4 and the rear bracket 3 are collectively referred to as "brackets" below, specifically: the bracket is fixed to the platform board 1 through a movable seat, the platform board 1 is provided with a slide groove 1-1, and the movable seat is connected to the slide groove 1-1 through bolts. Further, in order to avoid the inaccurate setting of the height difference between the front bracket 3 and the rear bracket 4 used to support the first pipe clamp 6, and the first pipe clamp 6 cannot be guaranteed to be horizontal, the bracket is designed as a height-adjustable structure, specifically: the lower part of the movable seat is a fixed part 31, the upper part is a movable part 32, the fixed part 31 is provided with a guide rod 33, the movable part 32 is a slider sleeved on the guide rod 33, and the position of the slider and the guide rod is provided with a pin 34. In this example, the horizontal position and height of the bracket can be adjusted according to the needs of pipeline layout, so that the tolerance of the device is high during assembly and it is easy to manufacture. The height difference between the front bracket 3 and the rear bracket 4 can also be adjusted according to the shape difference of different pipe clamps, taking into account different pipe clamp structures.

[0032] Example 3: In order to fix the height of the second pipe clamp 7, the horizontal tie rod 10 in this device can also be designed as an adjustable structure to facilitate the adjustment of the horizontal degree of the pipeline installation. Specifically: The two ends of the horizontal tie rod 10 are fixedly connected to the connecting plate 10-1, and the connecting plate 10-1 is provided with bolt holes. The two sides of the platform plate 1 are fixedly connected to the end panels 12 parallel to the connecting plate 10-1, and the end panels 12 are provided with long holes 12-1, and bolts 11 are installed in the bolt holes and the long holes. The end panels 12 can be fixed by setting a connecting beam 13 on the upper part of the leg and fixing the end panels on the connecting beam. Of course, the end panels 12 can also be directly welded to the lower sides of the two ends of the platform plate.

[0033] Example 4: A spring clip 8 is provided in the slot 5 provided on the surface of the platform plate 1. This structure can enlarge the slot for inserting the pipe clamp handle, making the installation of the second pipe clamp 7 more convenient, and the spring clip 8 can effectively stabilize the second pipe clamp 7.

[0034] The method for fixing the pipeline using the above device has the following specific steps:

[0035] 1) A square steel plate is used, and the legs are welded at the bottom to form an operating platform with a certain height;

[0036] 2) A bracket is fixed on the platform plate, a U-shaped notch is formed on the top of the bracket, and two brackets are arranged one in front of the other. The front bracket is used to support and fix the front of the first pipe clamp, and the rear bracket is used to support and fix the rear handle of the first pipe clamp;

[0037] 3) Adjust the height difference between the front and rear brackets to ensure that the first pipe clamp is arranged horizontally, and place the first pipe clamp with the 6 mouths facing upwards;

[0038] 4) Drill a slot 5 on the surface of the platform plate, the size of which is larger than the size of the second pipe clamp handle, and insert the second pipe clamp 7 handle into the slot; a horizontal tie rod 10 is set under the platform plate, and the horizontal tie rod passes through the hole on the second pipe clamp handle, and the two ends are connected to the legs;

[0039] 5) Adjust the second pipe clamp to be arranged vertically with its jaws facing sideways;

[0040] 6) Adjust the jaw sizes of the first pipe clamp 6 and the second pipe clamp 7 to fix the pipe 9 to be threaded.

[0041] The technical solution of the present invention is described in detail below in conjunction with specific construction examples.

[0042] 1. Use a 1cm thick steel plate to cut into 1.0mX1.0m square platform plates 1. Four angle steels are welded to the lower part of the square platform plate 1 as legs 2. The bottom of the legs is welded diagonally with steel bars to form a connecting rod for reinforcement support;

[0043] 2. Weld the front bracket 3 and the rear bracket 4 on the top of the platform plate 1. The bracket can be made of channel steel. The web of the channel steel is cut to reduce the height so as to form a U-shaped groove on the top. The front and rear brackets are set at different heights. The two brackets support the first pipe clamp 6 and keep it horizontal. The first pipe clamp 6 is fixed on the bracket with its opening facing upward;

[0044] 3. A slot hole 5 is opened on the surface of the platform plate 1, and a handle of a second pipe clamp 7 is inserted into the slot hole 5;

[0045] 4. A horizontal tie rod 10 is provided below the platform plate 1. The horizontal tie rod 10 passes through the hole at the handle end of the second pipe clamp 7 and is fixed at both ends. The horizontal tie rod 7 can be directly fixed to the support leg 2 or fixed to the support leg 2 through other connecting rods or connecting plates;

[0046] 5. Adjust the opening width of the jaws of the first pipe clamp 6 so that the jaws open vertically upward; adjust the opening width of the jaws of the second pipe clamp 7 so that the jaws open horizontally to the side;

[0047] 6. Pass the pipe 9 to be threaded through the jaws of the first pipe clamp 5 and the second pipe clamp 6, and adjust the pipe clamp nut to clamp the pipe 9;

[0048] 7. Finally, use a manual threading tool to sleeve and thread the pipe.

[0049] The present invention provides a frame operating platform for pipe threading. The components are assembled using common tools in construction. The platform has a small size, a light load, is easy to move, has a fast pipe fixing speed, is suitable for various pipe specifications, and provides convenience for pipe threading.

[0050] Compared with the existing construction methods, the solution provided by the present invention has the following advantages: 1. The device is assembled by combining commonly used tools in construction, which is easy to assemble and low in cost; 2. The volume of the device is greatly reduced compared with a special pipe threading machine, and it can be transported between various construction sites and is easy to move; 3. The device is flexible in operation, simple to manufacture, and suitable for pipes of any shape.

Claims

1. A method for using a fixing device for threading a small-diameter pipe, characterized in that: A fixing device for threading a small-diameter pipe comprises a platform plate, a support leg is arranged under the platform plate, two brackets with U-shaped notches on the top are fixedly connected to the platform plate, a first pipe clamp is installed on the two brackets, and the first pipe clamp is arranged horizontally; a slot hole is arranged on the surface of the platform plate, a second pipe clamp is installed in the slot hole, and the opening size of the slot hole is adapted to the handle of the second pipe clamp; a horizontal tie rod is arranged under the platform plate, the horizontal tie rod passes through the hole on the handle of the second pipe clamp, and both ends of the horizontal tie rod are fixedly connected to the connecting beam between the support legs; The bracket is fixed to the platform plate through a moving seat, the platform plate is provided with a slide groove, and the moving seat is fixed in the slide groove by bolts; The lower part of the moving seat is a fixed part, and the upper part is a moving part. A guide rod is arranged on the lower part, and the moving part is a slider sleeved on the guide rod. Pins are arranged at the positions of the slider and the guide rod. The two ends of the horizontal tie rod are fixedly connected to the connecting plate, which is provided with bolt holes. The two sides of the platform plate are fixedly connected to the end panels parallel to the connecting plate, which are provided with long holes, and bolts are installed in the bolt holes and the long holes. A spring clip is provided in the slot hole provided on the surface of the platform plate; The specific steps are as follows: 1) A square steel plate is used, and the legs are welded at the bottom to form an operating platform with a certain height; 2) A bracket is fixed on the platform plate, a U-shaped notch is formed on the top of the bracket, and two brackets are arranged one in front of the other. The front bracket is used to support and fix the front of the first pipe clamp, and the rear bracket is used to support and fix the rear handle of the first pipe clamp; 3) Adjust the height difference between the front and rear brackets to ensure that the first pipe clamp is arranged horizontally, and the first pipe clamp mouth is arranged upward; 4) Drilling a slot hole on the surface of the platform plate, the size of which is greater than or equal to the size of the second pipe clamp handle, inserting the second pipe clamp handle into the slot hole; a horizontal tie rod is arranged under the platform plate, the horizontal tie rod passes through the hole on the second pipe clamp handle, and both ends of the horizontal tie rod are connected to the legs; 5) Adjust the second pipe clamp to be arranged vertically with its jaws facing sideways; 6) Adjust the jaw sizes of the first pipe clamp and the second pipe clamp to fix the pipe to be threaded.

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