Pipeline opening tool for replacing flow meter

Abstract

The utility model discloses an opening tool for replacing a flowmeter pipeline, and particularly relates to the field of flowmeter pipeline opening, which comprises rotating rods arranged on the two sides of the flowmeter pipeline, screw heads are symmetrically and fixedly connected to the two ends of each rotating rod, screw rods are symmetrically inserted into the two ends of each rotating rod, threads are arranged on the outer surfaces of the screw rods, and the rotating rods are fixedly connected with the screw heads. The end, close to the inserting rod, of the threaded rod is fixedly sleeved with a top ring. Firstly, the clamping rod is limited by the fixing plate through the clamping groove, the insertion rod and the screws can be positioned, rotation of the insertion rod is limited, the screw head is controlled by an external wrench to drive the rotating rod to rotate, and the screws at the two ends of the rotating rod can move outwards at the same time to generate extrusion thrust. The pipeline flowmeter can be conveniently opened and separated, static pressure pipeline opening is achieved by increasing the extrusion force, damage to the pipeline can be avoided, and the pipeline flowmeter opening device is simple in overall operation and use, convenient to carry and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of flowmeter pipeline expansion, and more specifically, to a tool for replacing the expansion of a flowmeter pipeline. Background Technique

[0002] A flowmeter is an instrument that indicates the measured flow rate and / or the total amount of fluid within a selected time interval. Simply put, it is an instrument used to measure the flow rate of fluid in a pipeline or open channel. Flowmeters are further divided into differential pressure flowmeters, rotor flowmeters, throttling flowmeters, slit flowmeters, volumetric flowmeters, electromagnetic flowmeters, ultrasonic flowmeters, etc.;

[0003] When the flowmeter needs to be replaced, it is often necessary to separate the connecting flange of the flowmeter from the connecting flange of the pipeline to replace the flowmeter. However, currently, when replacing the flowmeter, a knocking method is often used to separate the pipeline from the flowmeter, which will generate an impact force on the pipeline during disassembly, posing risks of damaging the pipeline and potential injuries to personnel. It is inconvenient to expand the pipeline by static pressure. Therefore, a tool for replacing the expansion of a flowmeter pipeline is proposed. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tool for replacing the expansion of a flowmeter pipeline to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A tool for replacing the expansion of a flowmeter pipeline, including rotating rods arranged on both sides of the flowmeter pipeline. Both ends of the rotating rod are symmetrically and fixedly connected with screw heads. Both ends of the rotating rod are symmetrically inserted with screw rods. The outer surface of the screw rod is provided with threads, and the other end is fixedly connected with an insertion rod. A top ring is fixedly sleeved on one end of the screw rod close to the insertion rod. One end of the insertion rod is fixedly connected with a clamping rod;

[0006] Both sides of the rotating rod are symmetrically provided with fixing plates. A clamping groove is opened on one side of the fixing plate. Both sides of the flowmeter pipeline are symmetrically provided with flanges. An installation hole is opened in the middle of the flange.

[0007] Preferably, the threads on the outer surface of the screw rod are threadedly connected with the inner cavity of the rotating rod, and the insertion rod penetrates through the middle of the screw head.

[0008] Preferably, the diameter of the top ring is the same as the inner cavity diameter of the rotating rod. The side wall of the top ring close to the insertion rod is perpendicular to the surface of the insertion rod, and the side wall of the top ring close to the thread is provided as an inclined surface.

[0009] Preferably, the insertion rod is adapted to the installation hole. The insertion rod penetrates through the middle of the installation hole, and the clamping rod is located on the side of the flange away from the top ring.

[0010] Preferably, the size of the clamping rod is adapted to the inner cavity size of the clamping groove. The clamping rod is arranged in the middle of the clamping groove, and the fixing plate is located on the side of the flange away from the rotating rod.

[0011] Preferably, the threads on the surfaces of the screws at both ends of the rotating rod are symmetrical, and the length of the fixing plate is greater than the diameter of the flange.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. First, through the limiting of the clamping rod by the clamping groove with the fixing plate provided in the present utility model, the positioning of the inserting rod and the screw can be realized, thereby restricting the rotation of the inserting rod. By controlling the screw head with an external wrench to drive the rotating rod to rotate, the screws at both ends of the rotating rod can move outward simultaneously to generate a squeezing thrust, which is convenient for separating and expanding the pipeline flowmeter. And by increasing the squeezing force, the static pressure can be used to expand the pipeline, which can avoid damaging the pipeline. Moreover, the overall operation is simple, easy to carry, and has strong practicability.

[0014] 2. The present utility model also drives the pipeline through the top ring provided, and it is convenient to rotate the rotating rod through the screw head. And through the inserting rod provided, it is convenient to penetrate the installation hole, move the clamping rod to the other side of the flange, and is convenient for expanding and using. By adjusting the length of the screw extending from the rotating rod, it is convenient to adapt to different sizes of flowmeters and pipelines for expanding and using, and it is convenient to take out the sealing gaskets at both ends, which is convenient for use.

[0015] In summary, through the mutual influence of the above multiple functions, it is convenient to separate and expand the pipeline flowmeter, realize the static pressure expansion of the pipeline, avoid damaging the pipeline, and the overall operation is simple, easy to carry, and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model.

[0017] Figure 2 is the split structural schematic diagram of the rotating rod and the fixing plate of the present utility model.

[0018] Figure 3 is the split structural schematic diagram of the rotating rod and the screw of the present utility model.

[0019] Figure 4 is the structural schematic diagram of the screw of the present utility model.

[0020] The reference numerals are: 1, rotating rod; 2, screw head; 3, screw; 4, thread; 5, top ring; 6, inserting rod; 7, clamping rod; 8, fixing plate; 9, clamping groove; 10, flowmeter pipeline; 11, flange; 12, installation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As shown in the attached Figures 1-4 The flowmeter pipeline replacement expansion tool is provided with rotating rods 1 on both sides of the flowmeter pipeline 10. At both ends of the rotating rod 1, screw heads 2 are symmetrically and fixedly connected, which facilitates the staff to control the screw heads 2 with a wrench to rotate the rotating rod 1. At both ends of the rotating rod 1, screw rods 3 are symmetrically inserted. A thread 4 is arranged on the outer surface of the screw rod 3. By rotating the screw head 2, the thread 4 can be controlled not to rotate, and the thread 4 drives the screw rod 3 to move horizontally, so that the screw rods 3 at both ends of the screw head 2 stably push to both sides, which is convenient for squeezing and expanding the flowmeter and the pipeline, and is convenient to use. The other end is fixedly connected with an insertion rod 6. A top ring 5 is fixedly sleeved at one end of the screw rod 3 close to the insertion rod 6. The insertion rod 6 is conveniently inserted into the inside of the installation hole 12 for limit support. A clamping rod 7 is fixedly connected to one end of the insertion rod 6. The clamping rod 7 is convenient for fixing the screw rod 3 to prevent the screw rod 3 from rotating along with the rotating rod 1, which is convenient for limit use.

[0023] On both sides of the rotating rod 1, fixing plates 8 are symmetrically arranged. A clamping groove 9 is opened on one side of the fixing plate 8. On both sides of the flowmeter pipeline 10, flanges 11 are symmetrically arranged. An installation hole 12 is opened in the middle of the flange 11. By clamping the clamping rod 7 in the middle of the clamping groove 9, the insertion rod 6 can be limited by the fixing plate 8 to prevent the insertion rod 6 from rotating, and the fixing plate 8 is connected with the clamping rod 7 at one end of the two rotating rods 1. When in use, the clamping rod 7 is fixed, so as to realize the fixation of the insertion rod 6, prevent the insertion rod 6 from rotating, facilitate rotating the rotating rod 1 to drive the screw rod 3 to drive the insertion rod 6 to move horizontally, and squeeze the flange 11 through the top ring 5, which is convenient for expansion use. At the same time, the length of the insertion rod 6 extending out of the rotating rod 1 is adjusted, which is convenient for adapting to flowmeter pipelines 10 of different sizes for expansion, and is convenient for taking out the sealing gaskets at both ends, which is convenient to use.

[0024] As shown in the attached Figure 2 、 3 As shown, the thread 4 on the outer surface of the screw rod 3 is threadedly connected with the inner cavity of the rotating rod 1. The insertion rod 6 penetrates through the middle of the screw head 2. By rotating the rotating rod 1, the screw rod 3 is controlled to extend out of the inside of the rotating rod 1, and the rotating rod 1 is conveniently rotated through the screw head 2.

[0025] As shown in the attached Figures 2-4As shown, the diameter of the top ring 5 is the same as the inner diameter of the rotating rod 1, and the side wall of the top ring 5 close to the insertion rod 6 is set to be perpendicular to the surface of the insertion rod 6, and the side wall of the top ring 5 close to the thread 4 is set to be an inclined surface. The top ring 5 does not affect the contraction of the screw 3, and the flange 11 can be squeezed by the top ring 5, which is convenient for separating the flange 11 from the pipeline flange, convenient for removing the sealing gasket on one side of the flange 11, and convenient for separating the flow meter from the pipeline, which is convenient for use.

[0026] As attached Figure 1 As shown, the insertion rod 6 is adapted to the mounting hole 12, the insertion rod 6 passes through the middle of the mounting hole 12, the clamping rod 7 is located on the side of the flange 11 away from the top ring 5, the insertion rod 6 is inserted into the interior of the mounting hole 12 to limit the insertion rod 6, and the clamping rod 7 is extended from the middle of the mounting hole 12, so as to facilitate the installation of the fixing plate 8 to limit the clamping rod 7.

[0027] As attached Figure 1 , 2 As shown, the size of the clamping rod 7 is adapted to the inner cavity size of the clamping slot 9, the clamping rod 7 is arranged in the middle of the clamping slot 9, and the fixing plate 8 is located on the side of the flange 11 away from the rotating rod 1 and is clamped in the middle of the clamping slot 9 through the clamping rod 7. The clamping rod 7 can be limited by the fixing plate 8 to prevent the clamping rod 7 from rotating, thereby improving the limiting effect.

[0028] As attached Figure 1 , 3 As shown, the threads 4 on the surfaces of the screw rods 3 at both ends of the rotating rod 1 are symmetrical, the length of the fixing plate 8 is greater than the diameter of the flange 11, and after the clamping rods 7 at both ends of the rotating rod 1 are limited, the rotating rod 1 can be rotated to make the screw rods 3 at both ends extend from the middle of the rotating rod 1 at the same distance for easy control, so as to realize static pressure expansion of the pipeline, avoid damage to the pipeline caused by impact forces such as knocking and vibration, and avoid excessive expansion and damage to the pipeline to the greatest extent. In addition, the overall operation is simple to use, easy to carry, and highly practical.

[0029] Working principle of the utility model: when in use, first loosen all the bolts connecting the flow meter in the middle of the pipeline, take out any four bolts, and adjust the distance of the screw rod 3 extending from the inside of the rotating rod 1 according to the distance between the two ends of the pipeline. Specifically, the control rod 6 is fixed and the screw 3 is rotated so that the screw 3 can be extended from the inside of the rotating rod 1 through the thread 4 in sequence until the desired length is reached;

[0030] Then, the insertion rod 6 is inserted into the mounting hole 12 corresponding to the removal bolt, and the clamping rod 7 is leaked out from the other side. Then, the clamping rod 7 is clamped in the middle of the clamping slot 9 and the clamping rod 7 is positioned and restricted from rotating by the fixing plate 8.

[0031] Then use a wrench to control the rotation of the rotating rod 1 through the screw head 2, and then the screw 3 can drive the plug rod 6 to squeeze the two ends in turn, so that the pipes at both ends of the flow meter can be opened, and the sealing gaskets at both ends of the flow meter can be taken out to separate the flow meter from the pipe, and then use the external tripod to remove the flow meter, which is convenient for use.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow meter pipe expansion tool is provided for replacing the flow meter pipe, comprising a rotating rod (1) arranged on both sides of the flow meter pipe (10), characterized in that: The two ends of the rotating rod (1) are symmetrically fixedly connected with screw heads (2), the two ends of the rotating rod (1) are symmetrically inserted with screw rods (3), the outer surface of the screw rod (3) is provided with a thread (4), and the other end is fixedly connected with an insertion rod (6), the end of the screw rod (3) close to the insertion rod (6) is fixedly sleeved with a top ring (5), and one end of the insertion rod (6) is fixedly connected with a clamping rod (7); The rotating rod (1) is symmetrically provided with fixing plates (8), one side of the fixing plate (8) is provided with a slot (9), the flow meter pipeline (10) is symmetrically provided with flanges (11) on both sides, and the middle of the flange (11) is provided with a mounting hole (12).

2. The flow meter pipeline expansion tool for replacement according to claim 1, characterized in that: The outer surface thread (4) of the screw rod (3) is threadably connected to the inner cavity thread of the rotating rod (1), and the insertion rod (6) passes through the middle of the screw head (2).

3. The flow meter pipeline expansion tool for replacement according to claim 1, characterized in that: The diameter of the top ring (5) is the same as the inner diameter of the rotating rod (1); a side wall of the top ring (5) close to the insertion rod (6) is arranged to be perpendicular to the surface of the insertion rod (6); and a side wall of the top ring (5) close to the thread (4) is arranged to be an inclined surface.

4. The flow meter pipeline expansion tool for replacement according to claim 1, characterized in that: The insertion rod (6) is adapted to the mounting hole (12), the insertion rod (6) passes through the middle of the mounting hole (12), and the clamping rod (7) is located on a side of the flange (11) away from the top ring (5).

5. The flow meter pipeline expansion tool for replacement according to claim 1, characterized in that: The size of the clamping rod (7) is matched with the inner cavity size of the clamping slot (9), the clamping rod (7) is arranged in the middle of the clamping slot (9), and the fixing plate (8) is located on the side of the flange (11) away from the rotating rod (1).

6. The flow meter pipeline expansion tool for replacement according to claim 1, characterized in that: The threads (4) on the surfaces of the screw rods (3) at both ends of the rotating rod (1) are symmetrical, and the length of the fixing plate (8) is greater than the diameter of the flange (11).

Images