A mounting and positioning device for an electromagnetic flowmeter

Abstract

The utility model relates to the installation technical field of electromagnetic flowmeter, specifically related to a kind of installation positioning device of electromagnetic flowmeter, including support, the upper portion of support is provided with support plate, the side of support plate is provided with two support tubes, two support tubes are all installed on the side wall of support plate, several clamps are respectively arranged in two support tubes, several clamps are evenly distributed in the top of support tube along the circumferential direction of support tube, the inner cavity of the top of support tube adopts conical structure, clamp adopts arc sheet structure, the lower portion of clamp is provided with cylinder, support ring, spring and fixed ring are successively sleeved on cylinder along the direction close to support, support ring, spring and fixed ring are all located in support tube, the two sides of spring are respectively in contact with support ring and fixed ring, fixed shaft is sleeved in cylinder. The utility model provides a kind of installation positioning device of electromagnetic flowmeter to facilitate the installation of electromagnetic flowmeter, it is convenient to quickly install and position the electromagnetic flowmeter of electromagnetic flowmeter.

Description

Technical Field

[0001] This utility model relates to the field of installation technology of electromagnetic flowmeters, and specifically to an installation and positioning device for electromagnetic flowmeters. Background Technology

[0002] An electromagnetic flowmeter is an instrument that measures the volumetric flow rate of conductive liquids based on the law of electromagnetic induction. It is specifically designed for the precise measurement of the volumetric flow rate of conductive liquids. The working principle of an electromagnetic flowmeter is that when a conductive liquid flows in a magnetic field at a velocity perpendicular to the magnetic field direction, the charges in the liquid generate an induced electromotive force (EMF) under the influence of the magnetic field force. The magnitude of this EMF is proportional to the liquid's flow velocity. By detecting this induced EMF and processing it through a series of conversions, the actual flow rate of the liquid can be accurately calculated. Since the electromagnetic flowmeter only contacts the fluid through its liner and has no moving parts, this design effectively avoids clogging problems caused by impurities in the fluid and eliminates mechanical wear, significantly reducing maintenance frequency compared to traditional mechanical flowmeters. Furthermore, the electromagnetic flowmeter is highly versatile, accurately measuring both forward and reverse flow rates and effectively handling the measurement needs of pulsating flow. This characteristic makes electromagnetic flowmeters widely used in various industrial fields such as petroleum, chemical, and metallurgy, providing strong support for the efficient operation of industrial production.

[0003] To ensure the accuracy of electromagnetic flowmeters, they must be calibrated before leaving the factory. Calibration methods typically include standard flowmeter comparison, volumetric method, and gravimetric method. The standard flowmeter comparison method uses a high-precision standard flowmeter to compare with the electromagnetic flowmeter under test, calculating the error by comparing the readings to determine the accuracy of the electromagnetic flowmeter. The volumetric method uses a container of known volume to collect the fluid, comparing the actual volume with the reading displayed by the electromagnetic flowmeter to determine its accuracy. The gravimetric method calculates the actual flow rate by weighing the fluid, then compares the calculated actual flow rate with the flowmeter reading to determine the accuracy of the electromagnetic flowmeter. However, regardless of the calibration method used, the electromagnetic flowmeter must be installed on the pipeline for measurement.

[0004] Because electromagnetic flowmeters are quite heavy, and the installation process requires aligning the flowmeter's flange with the pipe's flange, manual handling and positioning of the flowmeter are necessary, making installation very cumbersome. To simplify the installation process, cranes and jacks are often used to move the flowmeter. However, using a crane can cause the flowmeter to sway, potentially colliding with the pipe and damaging both the flowmeter and the pipe. Since the flowmeter's lining flange is attached to the outside of the flange, collisions with the pipe during transport can damage the flowmeter and affect its measurement accuracy. Using jacks to lift the flowmeter requires operators to rotate the handle dozens or even hundreds of times to install it on the measuring pipe. While this method is relatively stable, it is extremely inefficient. Therefore, electromagnetic flowmeters have shortcomings in installation and positioning, and the installation and positioning device needs to be improved to facilitate the installation of electromagnetic flowmeters, make it easier to quickly install and position them, and thus improve the calibration efficiency of electromagnetic flowmeters. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an installation and positioning device for electromagnetic flow meters that facilitates installation and allows for quick installation and positioning, thereby overcoming the deficiencies in existing technologies.

[0006] The technical solution adopted by this utility model is as follows: an installation and positioning device for an electromagnetic flowmeter, including a bracket, a support plate is provided above the bracket, and two support tubes are provided on one side of the support plate. Both support tubes are installed on the side wall of the support plate. Several clamping pieces are respectively provided inside the two support tubes. These clamping pieces are evenly distributed along the circumference of the support tubes at the top of the tubes. The inner cavity of the top of the support tubes adopts a conical structure, and the inner diameter of the support tubes gradually increases towards the bracket. The clamping pieces adopt an arc-shaped plate structure, and the outer diameter of the clamping pieces... The clamp gradually increases in size towards the support, with its outer surface contacting the inner wall of the support tube. A cylinder is positioned below the clamp, on which a support ring, a spring, and a fixing ring are sequentially fitted along the direction towards the support. The support ring, spring, and fixing ring are all located inside the support tube, with the fixing ring mounted on the inner wall of the support tube and the support ring mounted on the cylinder. The two sides of the spring contact the support ring and the fixing ring, respectively. The lower middle part of the cylinder extends out from inside the support tube, and a fixing shaft is fitted inside the cylinder. The inner surface of the clamp contacts the fixing shaft, and the bottom end of the fixing shaft is mounted on the support.

[0007] Preferably, a fixed plate is provided above the support plate, and a base is provided between the fixed plate and the support plate. The base is installed on the top surface of the support plate, and a lifting mechanism is provided between the base and the fixed plate. The lifting mechanism includes a vertical plate on the fixed plate, a first lead screw rotatably mounted on the vertical plate, a slider threaded onto the first lead screw, a support rod fitted inside the slider, a first support arm on the support rod, a second support arm on one side of the first support arm, a fixed rod on the second support arm, and a first limiting frame on one side of the fixed rod. The top of the vertical plate is installed on the bottom surface of the fixed plate, and a limiting groove is formed in the lower middle part of the fixed plate, with the upper middle part of the slider fitted into the limiting groove. The cross-sectional shape of the limiting groove matches the cross-sectional shape of the upper middle part of the slider. The slider below the limiting groove has a sleeve hole, which is fitted onto the support rod. The end of the support rod is hinged to the top of the first support arm. The bottom of the first support arm is hinged to the base. The middle part of the first support arm is hinged to the middle part of the second support arm. The top of the second support arm is hinged to the fixed plate. The bottom of the second support arm is hinged to the end of the fixed rod. The first limiting frame adopts an n-shaped structure. The bottom of the first limiting frame is installed on the top surface of the base. The fixed rod is fitted into the channel formed by the first limiting frame and the base. The height of the channel formed by the first limiting frame and the base matches the diameter of the fixed rod.

[0008] Preferably, a second lead screw is provided above the fixed plate. The second lead screw is provided with a stop block, two support blocks, and two fixing blocks. The stop block is located between the two support blocks, and the two support blocks are located between the two fixing blocks. The stop block is rotatably fitted onto the middle of the second lead screw, and the two fixing blocks are rotatably fitted onto the second lead screw. The stop block and the two fixing blocks are respectively mounted on the fixed plate. The helical direction on one side of the second lead screw is opposite to the helical direction on the other side. The two support blocks are helically fitted onto both sides of the second lead screw. A fixing groove is formed in the upper middle part of the fixed plate, and the lower middle part of the support block is fitted into the fixing groove. The cross-sectional shape of the fixing groove matches the cross-sectional shape of the lower middle part of the support block. The support block adopts a Y-shaped structure. A first handle is provided on the second lead screw, located on the side of the fixing block away from the support blocks, and the first handle is mounted on the second lead screw.

[0009] Preferably, a second handle is provided on the first lead screw, the second handle is located on the side of the vertical plate away from the slider, and the second handle is installed on the first lead screw; an n-shaped second limiting frame is provided below the fixed plate, the bottom end of the second limiting frame is installed on the bottom surface of the fixed plate, and a support rod is fitted into the channel formed by the second limiting frame and the fixed plate, the height of the inner cavity formed by the second limiting frame and the fixed plate matches the diameter of the support rod; there are two cylinders, each cylinder is fitted into a support tube, and a horizontal plate is provided between the two cylinders, with both ends of the horizontal plate installed on the bottom ends of the two cylinders respectively. A support hole is opened in the middle of the horizontal plate, and a bolt is fitted into the support hole. The diameter of the support hole matches the diameter of the bolt thread, the bolt nut contacts the bottom surface of the horizontal plate, and a fixing tube is threaded onto the bolt thread. The fixing tube is installed on the bottom surface of the base, and the support plate is located on one side of the bolt.

[0010] Preferably, a baffle is provided on the fixed shaft, the length of the baffle is not less than the diameter of the fixed shaft, and the baffle is installed on the top of the fixed shaft.

[0011] Preferably, a reinforcing plate is provided below the supporting plate, the reinforcing plate is installed on the outer wall of the supporting tube, and the top of the reinforcing plate is installed on the bottom surface of the supporting plate.

[0012] Preferably, the bracket has several legs at its bottom and a round rod at its top. The bracket has a threaded hole at its edge, and the round rod is threaded into the threaded hole.

[0013] The beneficial effects of this utility model are as follows: First, the utility model uses a fixed shaft to support and limit the support plate, support tube, clamp, cylinder, support ring, spring, and fixed ring, allowing the support plate and support tube to move along a fixed extension direction. The clamp, support ring, spring, and fixed ring inside the support tube form a one-way locking mechanism, allowing the support tube to move from the bottom to the top of the fixed shaft. When the support tube moves in the opposite direction, the clamp locks the support tube and support plate onto the fixed shaft, enabling the raised support plate to be quickly fixed to the fixed shaft. This facilitates rapid positioning of the electromagnetic flowmeter placed on the support plate, aiding in the rapid installation of the electromagnetic flowmeter and improving work efficiency. Furthermore, the utility model uses a cylinder to form an unlocking mechanism for the support tube, releasing the lock and allowing the support tube and support plate to move in opposite directions to meet adjustment needs under different working conditions.

[0014] Secondly, this invention utilizes a lifting mechanism, base, and fixed plate to form a manual jack for precise positioning of the electromagnetic flowmeter. Rotating the first lead screw moves the slider, which in turn rotates the first and second support arms, adjusting the distance between the fixed plate and the base. This adjusts the height of the electromagnetic flowmeter placed on the fixed plate. First, the support plate is raised to the approximate height, and the support rod is fixed using a one-way locking mechanism. Then, rotating the first lead screw several or a dozen times quickly and accurately positions the electromagnetic flowmeter, assisting in its installation. Furthermore, this invention forms a support mechanism for the electromagnetic flowmeter using a second lead screw, a stop block, two support blocks, and two fixed blocks. Because the helical direction of one side of the second lead screw is opposite to that of the other side, rotating the second lead screw allows the two support blocks to move synchronously towards or away from the stop block, supporting electromagnetic flowmeters of various lengths.

[0015] Furthermore, this invention features a first and a second handle for convenient operation of the second and first lead screws. A horizontal plate allows simultaneous movement of both cylinders. Support holes on the horizontal plate, bolts fitted into these holes, and a fixed tube mounted on the base constrain the downward movement of the horizontal plate, preventing accidental sliding of the support rod. Additionally, a baffle prevents the support tube from slipping off the top of the fixed shaft, a reinforcing plate strengthens the connection between the support plate and the support tube, and a round rod and feet ensure the bracket remains level. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0018] Figure 3 This is a cross-sectional view of the assembly of the fixed shaft and the cross plate in this utility model.

[0019] Figure 4 This is an assembly diagram of the fixing plate and the base in this utility model.

[0020] Figure 5 for Figure 4 Enlarged diagram of point B in the middle. Detailed Implementation

[0021] like Figures 1 to 5As shown, an installation and positioning device for an electromagnetic flowmeter includes a bracket 1. A support plate 2 is disposed above the bracket 1. Two support tubes 3 are disposed on one side of the support plate 2. Both support tubes 3 are mounted on the side wall of the support plate 2. Several clamping pieces 4 are disposed inside each of the two support tubes 3. The clamping pieces 4 are evenly distributed along the circumference of the support tubes 3 at the top of the support tubes 3. The inner cavity of the top of the support tubes 3 has a conical structure, and the inner diameter of the support tubes 3 gradually increases along the direction close to the bracket 1. The clamping pieces 4 have an arc-shaped sheet structure, and the outer diameter of the clamping pieces 4 gradually increases along the direction close to the bracket 1. The outer surface of the clamping pieces 4 contacts the inner wall of the support tubes 3. A cylinder 5 is disposed below the clamping pieces 4. A support ring 6, a spring 7, and a fixing ring 8 are sequentially mounted on the cylinder 5 along the direction close to the bracket 1. The support ring 6, spring 7, and fixing ring 8 are all located inside the support tubes 3. The fixing ring 8 is mounted on the inner wall of the support tubes 3, and the inner cavity of the fixing ring 8 is straight. The outer diameter of the cylinder 5 matches the outer diameter of the support ring 6, which is installed on the cylinder 5. The outer diameter of the support ring 6 matches the inner diameter of the lower middle part of the support tube 3. The two sides of the spring 7 are in contact with the support ring 6 and the fixing ring 8, respectively. The lower middle part of the cylinder 5 extends out from the support tube 3. The fixing shaft 9 is installed inside the cylinder 5. The inner diameter of the cylinder 5 matches the diameter of the fixing shaft 9. The inner side of the clamp 4 is in contact with the fixing shaft 9. The bottom end of the fixing shaft 9 is installed on the bracket 1. The clamp 4, support ring 6, spring 7 and fixing ring 8 form a one-way locking mechanism for the support tube 3, which allows the support tube 3 to move along the bottom end to the top end of the fixing shaft 9. When the support tube 3 moves in the opposite direction, the clamp 4 will lock the support tube 3 and the support plate 2 on the fixing shaft 9 to quickly fix the raised support plate 2, thereby realizing the rapid positioning of the electromagnetic flowmeter placed on the support plate 2 to assist in the installation of the electromagnetic flowmeter. Specifically, the locking of the clamp 4 onto the support tube 3 is achieved by the elastic force of the spring 7, which presses the clamp 4 against the fixed shaft 9. In this state, if the support tube 3 moves in the opposite direction, it will cause the clamp 4 to press towards the top of the support tube 3. Since the top of the support tube 3 is conical and the outer diameter of the clamp 4 gradually increases towards the bracket 1, the clamp 4, while moving towards the top of the support tube 3, also presses and fixes towards the fixed shaft 9, thereby restricting the reverse movement of the support tube 3 and anchoring the support tube 3 to the fixed shaft 9, thus locking the support plate 2 and the support tube 3 onto the fixed shaft 9. In addition, the cylinder 5 constitutes the unlocking structure of the support tube 3. By pulling the cylinder 5, the fixed ring 8 moves downward to release the pressing force of the spring 7 on the clamp 4, thereby releasing the anchoring of the clamp 4 onto the support tube 3, so that the support tube 3 and the support plate 2 can move downward.

[0022] In this embodiment, a fixing plate 10 is provided above the support plate 2, and a base 11 is provided between the fixing plate 10 and the support plate 2. The base 11 is installed on the top surface of the support plate 2, and a lifting mechanism is provided between the base 11 and the fixing plate 10. The lifting mechanism includes a vertical plate 12 provided on the fixing plate 10, a first lead screw 13 rotatably provided on the vertical plate 12, a slider 14 threaded on the first lead screw 13, a support rod 15 installed inside the slider 14, a first support arm 16 provided on the support rod 15, a second support arm 17 provided on one side of the first support arm 16, and a fixing rod 17 provided on the second support arm 17. A first limiting bracket 19 is provided on one side of the fixed rod 18. The top of the vertical plate 12 is installed on the bottom surface of the fixed plate 10. A limiting groove 20 is opened in the lower middle part of the fixed plate 10. The upper middle part of the slider 14 is fitted into the limiting groove 20. The cross-sectional shape of the limiting groove 20 matches the cross-sectional shape of the upper middle part of the slider 14. The extension direction of the limiting groove 20 is parallel to the central axis of the first lead screw 13. Thus, the limiting groove 20 is used to constrain the rotation of the slider 14, so that the slider 14 can only move along the central axis of the first lead screw 13, so as to convert the rotation of the first lead screw 13 into the movement of the slider 14. The lower part of the limiting groove 20 The square slider 14 has a sleeve hole, which is fitted onto the support rod 15. The diameter of the support rod 15 matches the diameter of the sleeve hole. The end of the support rod 15 is hinged to the top of the first support arm 16, the bottom of the first support arm 16 is hinged to the base 11, the middle of the first support arm 16 is hinged to the middle of the second support arm 17, the top of the second support arm 17 is hinged to the fixing plate 10, and the bottom of the second support arm 17 is hinged to the end of the fixing rod 18. The first limiting frame 19 adopts an n-shaped structure, and the bottom of the first limiting frame 19 is installed on the top surface of the base 11. The fixing rod 18 is fitted onto the first... In the channel formed by the limiting frame 19 and the base 11, the height of the channel formed by the first limiting frame 19 and the base 11 matches the diameter of the fixed rod 18. By controlling the slider 14 to move, the first support arm 16 is pushed to rotate. Under the constraint of the first support arm 16, the base 11, the first limiting frame 19 and the fixed plate 10 on the second support arm 17, the rotation of the first support arm 16 can drive the second support arm 17 to rotate together, thereby adjusting the distance between the fixed plate 10 and the base 11, so as to adjust the height of the electromagnetic flowmeter placed on the fixed plate 10, thereby assisting the installation of the electromagnetic flowmeter.

[0023] Specifically, a second lead screw 21 is provided above the fixing plate 10. A stop block 22, two support blocks 23, and two fixing blocks 24 are respectively provided on the second lead screw 21. The stop block 22 is located between the two support blocks 23, and the two support blocks 23 are located between the two fixing blocks 24. The stop block 22 is rotatably fitted onto the middle of the second lead screw 21 to support the middle of the second lead screw 21. The two fixing blocks 24 are rotatably fitted onto the second lead screw 21. The stop block 22 and the two fixing blocks 24 are respectively installed on the fixing plate 10. The helical direction on one side of the second lead screw 21 is opposite to the helical direction on the other side. The two support blocks 23 are helically fitted onto both sides of the second lead screw 21. A fixing groove 25 is formed in the upper middle part of the fixing plate 10. The lower middle part of the support block 23 is fitted into the fixing groove 25. The cross-sectional shape of the fixing groove 25 matches the cross-sectional shape of the lower middle part of the support block 23. The extension direction of the fixing groove 25 is parallel to that of the second lead screw. The central axes of the two screws 21 are parallel, thus the rotation of the support block 23 is constrained by the fixing groove 25, so that the support block 23 can only move along the central axis of the second screw 21, so that the rotation of the second screw 21 is converted into the movement of the support block 23. The support block 23 adopts a Y-shaped structure so that it can support and limit the electromagnetic flowmeter. Since the helical direction of one side of the second screw 21 is opposite to that of the other side, when the second screw 21 is turned, the two support blocks 23 move synchronously along the direction of approaching or moving away from the stop block 22, so as to support electromagnetic flowmeters of various lengths. The second screw 21 is provided with a first handle 26, which is located on the side of the fixing block 24 away from the support block 23. The first handle 26 is mounted on the second screw 21 so that the rotation of the second screw 21 can be controlled by rotating the first handle 26, thereby adjusting the distance between the two support blocks 23.

[0024] Please refer to it again. Figure 1 , 45. A second handle 27 is provided on the first lead screw 13. The second handle 27 is located on the side of the vertical plate 12 away from the slider 14. The second handle 27 is installed on the first lead screw 13 so that the first lead screw 13 can be rotated by rotating the second handle 27 to adjust the movement of the slider 14, thereby adjusting the distance between the base 11 and the fixed plate 10. A second limiting frame 28 with an n-shaped structure is provided below the fixed plate 10. The bottom end of the second limiting frame 28 is installed on the bottom surface of the fixed plate 10. The support rod 15 is fitted into the channel formed by the second limiting frame 28 and the fixed plate 10. The height of the inner cavity formed by the second limiting frame 28 and the fixed plate 10 matches the diameter of the support rod 15, thereby constraining the movement distance of the support rod 15 and reducing the up-and-down swaying phenomenon of the support rod 15, improving the stability of the present invention. There are two cylinders 5. The two cylinders 5 are respectively fitted into two support tubes 3. A horizontal plate 29 is provided between the two cylinders 5. The two ends of the horizontal plate 29 are respectively installed on the two support tubes 3. At the bottom end of each cylinder 5, a horizontal plate 29 has through holes on both sides. These through holes are fitted onto the cylinder 5. By pulling the horizontal plate 29, two cylinders 5 can be moved simultaneously, thus facilitating the release of the locking of the two support tubes 3 at the same time. A support hole 30 is provided in the middle of the horizontal plate 29. A bolt 31 is fitted into the support hole 30. The bolt 31 includes a threaded rod and a nut. The nut is installed on one end of the threaded rod, and the diameter of the nut is not less than the diameter of the threaded rod. The diameter of the support hole 30 is consistent with the thread diameter of the bolt 31. The diameter of the rod matches, the nut of bolt 31 contacts the bottom surface of horizontal plate 29, and a fixing tube 32 is threaded on the bolt 31. The fixing tube 32 is installed on the bottom surface of base 11. The support plate 2 is located on one side of bolt 31 to avoid interference between support plate 2 and bolt 31. By using bolt 31 to constrain the downward movement of horizontal plate 29, the support tube 3 is prevented from being released due to accidental contact with horizontal plate 29, thereby preventing the support plate 2 from sliding downward due to accidental contact.

[0025] In this embodiment, a baffle 33 is provided on the fixed shaft 9. The length of the baffle 33 is not less than the diameter of the fixed shaft 9. The baffle 33 is installed on the top of the fixed shaft 9 to prevent the support tube 3 from sliding out from the top of the fixed shaft 9.

[0026] Specifically, a reinforcing plate 34 is provided below the support plate 2. The reinforcing plate 34 is installed on the outer wall of the support pipe 3, and the top of the reinforcing plate 34 is installed on the bottom surface of the support plate 2 to reinforce the connection between the support plate 2 and the support pipe 3.

[0027] Please refer to it again. Figure 1The bracket 1 has several legs 35 at its bottom and a round rod 36 above the legs 35. The bracket 1 has a threaded hole at its edge, and the round rod 36 is threaded into the threaded hole. By turning the round rod 36, the extension of the round rod 36 can be adjusted, thereby adjusting the height of the legs 35 so as to keep the bracket 1 horizontal.

[0028] The instructions for using this product are as follows: Figures 1 to 5 As shown, firstly, place the product on the area where the electromagnetic flowmeter will be installed. Adjust the extension of the rod 36 by turning it, thereby adjusting the height of the support leg 35 to keep the bracket 1 and support plate 2 horizontal. Next, rotate the second handle 27 to move the slider 14 to the middle of the first lead screw 13. Then, rotate the first handle 26 according to the width of the electromagnetic flowmeter to be installed, so that the two support blocks 23 can support the electromagnetic flowmeter. Then, based on the height difference between the electromagnetic flowmeter to be installed and the installation location on the pipeline, as well as the height difference between the installation location on the pipeline and the support block 23, the support plate 2 is pulled upwards to ensure that the height of the electromagnetic flowmeter placed on the support block 23 is consistent with the height of the installation location on the pipeline. Simultaneously, under the pressure of the spring 7, the clamping plate 4 is positioned at the top of the support pipe 3. Using the weight of the support plate 2 and the support pipe 3, the support pipe 3 presses against the clamping plate 4, thus clamping and fixing it to the fixed shaft 9. In other words, the clamping plate 4 locks and fixes the support pipe 3 and the support plate 2 to the fixed shaft 9, quickly securing the raised support plate 2. Next, the electromagnetic flowmeter to be installed is placed on the two support blocks 23. Based on the height error between the electromagnetic flowmeter and the installation location on the pipeline, the second handle 27 is rotated again to accurately position the electromagnetic flowmeter and ensure accurate installation on the pipeline. To remove this product, press down on the horizontal plate 29, causing the cylinder 5 and the fixing ring 8 to move downwards. This releases the pressure of the spring 7 on the clamping plate 4, thereby releasing the anchoring of the clamping plate 4 to the support tube 3. This allows the support tube 3 and the support plate 2 to move downwards, allowing the product to be removed. Furthermore, to prevent accidental contact with the horizontal plate 29 that could cause the support tube 3 to disengage, the bolt 31 is passed through the support hole 30 and then screwed onto the fixing tube 32, so that the nut of the bolt 31 contacts the bottom surface of the horizontal plate 29. This uses the bolt 31 to restrain the downward movement of the horizontal plate 29, allowing the product to be easily removed.

[0029] In this embodiment, the fixed shaft 9 provides support and limits the support plate 2, support tube 3, clamping plate 4, cylinder 5, support ring 6, spring 7, and fixed ring 8, allowing the support plate 2 and support tube 3 to move along the extension direction of the fixed shaft 9. The clamping plate 4, support ring 6, spring 7, and fixed ring 8 within the support tube 3 form a one-way locking mechanism, enabling the support tube 3 to move from the bottom to the top of the fixed shaft 9. When the support tube 3 moves in the opposite direction, the clamping plate 4 locks the support tube 3 and support plate 2 onto the fixed shaft 9, quickly securing the raised support plate 2 to the fixed shaft 9. This allows for rapid positioning of the electromagnetic flowmeter placed on the support plate 2, facilitating quick installation and improving work efficiency. Furthermore, the cylinder 5 serves as an unlocking mechanism for the support tube 3, releasing the lock and allowing the support tube 3 and support plate 2 to move in opposite directions to meet adjustment needs under different operating conditions.

[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An installation and positioning device for an electromagnetic flowmeter, comprising a bracket (1), characterized in that: A support plate (2) is provided above the bracket (1). Two support tubes (3) are provided on one side of the support plate (2). Both support tubes (3) are installed on the side wall of the support plate (2). Several clips (4) are provided in the two support tubes (3). The clips (4) are evenly distributed on the top of the support tubes (3) along the circumference of the support tubes (3). The inner cavity of the top of the support tubes (3) adopts a conical structure. The inner diameter of the support tubes (3) gradually increases along the direction close to the bracket (1). The clips (4) adopt an arc-shaped plate structure. The outer diameter of the clips (4) gradually increases along the direction close to the bracket (1). The outer side of the clips (4) is flush with the inner wall of the support tubes (3). The clamp (4) is in contact with the support tube (3). A cylinder (5) is provided below the clamp (4). A support ring (6), a spring (7) and a fixing ring (8) are sequentially mounted on the cylinder (5) along the direction close to the support (1). The support ring (6), spring (7) and fixing ring (8) are all located inside the support tube (3). The fixing ring (8) is installed on the inner wall of the support tube (3). The support ring (6) is installed on the cylinder (5). The two sides of the spring (7) are in contact with the support ring (6) and the fixing ring (8) respectively. The middle and lower part of the cylinder (5) passes through the support tube (3). A fixing shaft (9) is installed inside the cylinder (5). The inner side of the clamp (4) is in contact with the fixing shaft (9). The bottom end of the fixing shaft (9) is installed on the support (1).

2. The installation and positioning device for the electromagnetic flowmeter according to claim 1, characterized in that: A fixing plate (10) is provided above the support plate (2), and a base (11) is provided between the fixing plate (10) and the support plate (2). The base (11) is installed on the top surface of the support plate (2), and a lifting mechanism is provided between the base (11) and the fixing plate (10). The lifting mechanism includes a vertical plate (12) mounted on a fixed plate (10), a first lead screw (13) rotatably mounted on the vertical plate (12), a slider (14) threaded onto the first lead screw (13), a support rod (15) mounted inside the slider (14), a first support arm (16) mounted on the support rod (15), a second support arm (17) mounted on one side of the first support arm (16), a fixed rod (18) mounted on the second support arm (17), and a first limiting frame (19) mounted on one side of the fixed rod (18). The top of the vertical plate (12) is mounted on the bottom surface of the fixed plate (10). A limiting groove (20) is opened in the lower middle part of the fixed plate (10). The upper middle part of the slider (14) is fitted into the limiting groove (20). The cross-sectional shape of the limiting groove (20) matches the cross-sectional shape of the upper middle part of the slider (14). 20) The slider (14) below has a sleeve hole, which is fitted onto the support rod (15). The end of the support rod (15) is hinged to the top of the first support arm (16). The bottom of the first support arm (16) is hinged to the base (11). The middle part of the first support arm (16) is hinged to the middle part of the second support arm (17). The top of the second support arm (17) is hinged to the fixing plate (10). The bottom of the second support arm (17) is hinged to the end of the fixing rod (18). The first limiting frame (19) adopts an n-shaped structure. The bottom of the first limiting frame (19) is installed on the top surface of the base (11). The fixing rod (18) is fitted into the channel formed by the first limiting frame (19) and the base (11). The height of the channel formed by the first limiting frame (19) and the base (11) matches the diameter of the fixing rod (18).

3. The installation and positioning device for the electromagnetic flowmeter according to claim 2, characterized in that: A second lead screw (21) is provided above the fixed plate (10). A stop block (22), two support blocks (23), and two fixing blocks (24) are respectively provided on the second lead screw (21). The stop block (22) is located between the two support blocks (23), and the two support blocks (23) are located between the two fixing blocks (24). The stop block (22) is rotatably fitted onto the middle part of the second lead screw (21), and the two fixing blocks (24) are rotatably fitted onto the second lead screw (21). The stop block (22) and the two fixing blocks (24) are respectively installed on the fixed plate (10). The helical direction of one side of the second lead screw (21) is opposite to that of the second lead screw (21). The other side of the spiral direction is opposite. The two support blocks (23) are respectively spirally fitted on both sides of the second lead screw (21). The upper middle part of the fixing plate (10) is provided with a fixing groove (25). The lower middle part of the support block (23) is fitted in the fixing groove (25). The cross-sectional shape of the fixing groove (25) matches the cross-sectional shape of the lower middle part of the support block (23). The support block (23) adopts a Y-shaped structure. The second lead screw (21) is provided with a first handle (26). The first handle (26) is located on the side of the fixing block (24) away from the support block (23). The first handle (26) is installed on the second lead screw (21).

4. The installation and positioning device for the electromagnetic flowmeter according to claim 2, characterized in that: A second handle (27) is provided on the first lead screw (13). The second handle (27) is located on the side of the vertical plate (12) away from the slider (14). The second handle (27) is installed on the first lead screw (13). A second limiting frame (28) with an n-shaped structure is provided below the fixed plate (10). The bottom end of the second limiting frame (28) is installed on the bottom surface of the fixed plate (10). The support rod (15) is fitted into the channel formed by the second limiting frame (28) and the fixed plate (10). The height of the inner cavity formed by the second limiting frame (28) and the fixed plate (10) matches the diameter of the support rod (15). There are two cylinders (5). Two cylinders (5) are respectively fitted inside two support tubes (3). A horizontal plate (29) is provided between the two cylinders (5). The two ends of the horizontal plate (29) are respectively installed on the bottom ends of the two cylinders (5). A support hole (30) is opened in the middle of the horizontal plate (29). A bolt (31) is fitted inside the support hole (30). The diameter of the support hole (30) matches the diameter of the bolt (31). The nut of the bolt (31) contacts the bottom surface of the horizontal plate (29). A fixing tube (32) is threaded on the bolt (31). The fixing tube (32) is installed on the bottom surface of the base (11). The support plate (2) is located on one side of the bolt (31).

5. The installation and positioning device for the electromagnetic flowmeter according to claim 1, characterized in that: A baffle (33) is provided on the fixed shaft (9). The length of the baffle (33) is not less than the diameter of the fixed shaft (9). The baffle (33) is installed on the top of the fixed shaft (9).

6. The installation and positioning device for the electromagnetic flowmeter according to claim 1, characterized in that: A reinforcing plate (34) is provided below the support plate (2). The reinforcing plate (34) is installed on the outer wall of the support tube (3), and the top of the reinforcing plate (34) is installed on the bottom surface of the support plate (2).

7. The installation and positioning device for the electromagnetic flowmeter according to claim 1, characterized in that: The bracket (1) is provided with several legs (35) below, and a round rod (36) is provided above the legs (35). A threaded hole is provided at the edge of the bracket (1), and the round rod (36) is threaded into the threaded hole.

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