CN210242875U

CN210242875U - Electromagnetic flowmeter convenient to installation

Info

Publication number: CN210242875U
Application number: CN201921326089.5U
Authority: CN
Inventors: Lidong Lin; 林丽东; Xiujuan Xia; 夏秀娟
Original assignee: Hangzhou Lindu Electromechanical Equipment Co Ltd
Current assignee: Hangzhou Lindu Electromechanical Equipment Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-03
Anticipated expiration: 2029-08-15

Abstract

The utility model provides an electromagnetic flowmeter convenient to installation, including the survey buret of inboard lining of having laid, its characterized in that: the measuring tube is provided with a measuring device, one side of the measuring device is provided with a fastening device, and one side of the fastening device is provided with a sealing component; the measuring device opposite side be equipped with the screwed pipe subassembly, the utility model provides a pair of electromagnetic flowmeter convenient to installation utilizes fastener and sealing device cooperation for it is more convenient to install, and has guaranteed installation back steadiness and leakproofness.

Description

Electromagnetic flowmeter convenient to installation

Technical Field

The invention belongs to the technical field of measuring instruments, and particularly relates to an electromagnetic flowmeter convenient to install.

Background

The electromagnetic flowmeter is an induction type instrument manufactured according to Faraday's law of electromagnetic induction for measuring volume flow of medium in a pipe, however, the electromagnetic flowmeter in the prior art is difficult to mount and dismount, so the improvement on the structure of the electromagnetic flowmeter is worth thinking.

For example, chinese patent document discloses an electromagnetic flowmeter that is easy to install, and the electromagnetic flowmeter is described in the application number: 201721508436.7, including the electromagnetic flowmeter body with by the pipeline, the electromagnetic flowmeter body includes the smart meter head, the bottom of smart meter head is equipped with the connecting rod, the bottom fixedly connected with sensor of connecting rod, the mutual symmetry in both ends is equipped with insulating bush about the sensor, the base member outer end of insulating bush is equipped with grafting device, grafting device includes the spout, the inside swing joint of spout has the peg graft pole, the one end of peg graft pole runs through in the one end fixed connection of through-hole and hand twisting rod, the spring has been cup jointed to the inside of spout and the outside of peg graft pole, the other end welding of peg graft pole has the screw rod section, is fit for promoting.

In the electromagnetic flowmeter convenient to mount in the scheme, although the plugging device is passed through to a certain extent, the plugging device is plugged into the inside of the plugging hole of the pipeline to be tested, other mounting tools are not needed, the electromagnetic flowmeter can be mounted, the sealing performance is poor, and the dismounting and the overhauling are difficult.

Disclosure of Invention

The invention aims to solve the problems and provides an electromagnetic flowmeter convenient to mount, which is convenient to mount and ensures the stability and the sealing property after mounting by utilizing the cooperation of a fastening device and a sealing device.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an electromagnetic flowmeter convenient to installation, includes that the measuring pipe of inside lining has been laid to the inboard, its characterized in that: the measuring tube is provided with a measuring device, one side of the measuring device is provided with a fastening device, and one side of the fastening device is provided with a sealing component; and a threaded pipe assembly is arranged on the other side of the measuring device.

Preferably, the measuring device comprises an excitation coil fixedly arranged on the periphery of the measuring tube, and positive and negative electrode blocks are arranged on the periphery of the excitation coil; the measuring device also comprises a measuring instrument with a converter, and the instrument is fixedly arranged at the upper end of the excitation coil.

Preferably, the fastening device comprises a plurality of racks fixedly arranged on one side of the measuring pipe, the racks are matched with sliding rails arranged on the first threaded pipe, and a one-way component is arranged at the upper end of each rack.

As preferred, one-way subassembly include that the up end installs the installation storehouse of a plurality of first elastic components, first elastic component lower extreme be equipped with the connecting plate, connecting plate upper end be connected with the limiting plate of taking spacing post through the pivot, just spacing post with a plurality of set up in first screwed pipe on the draw-in groove mutually support, connecting plate lower extreme fixed mounting have the fixture block of taking the inclined plane.

Preferably, the sealing assembly comprises a telescopic bin arranged on one side of the sliding rail, a second elastic piece is arranged in the telescopic bin, and the front end of the telescopic bin is connected with a sealing bin with an expansion ring through an air pipe.

Preferably, the threaded pipe assembly comprises a second threaded pipe provided with an inner cavity, the tail end of the inner cavity is connected with the measuring pipe through a third elastic piece, and the front end of the inner cavity is further provided with a sealing ring.

Compared with the prior art, the invention has the advantages that:

1. the third elastic piece arranged in the threaded pipe assembly is beneficial to compressing the measuring pipe during installation, so that the position of the measuring pipe is adjusted, and the position matching of the measuring pipe and the fastening device is more convenient.

2. The sealing assembly provided by the invention utilizes the power provided by the rack to reduce the volume of the telescopic bin body, and the internal pressure of the expansion ring is increased, so that the expansion ring can seal the connecting position of the first threaded pipe and the pipeline.

Drawings

Fig. 1 is a structural diagram of an electromagnetic flowmeter provided by the invention and convenient to install.

FIG. 2 is a partial cross-sectional view (front view) of an electromagnetic flow meter provided by the present invention that is easy to install.

FIG. 3 is a cross-sectional view of the A-A side of an electromagnetic flow meter of the present invention that is easy to install.

Fig. 4 is an enlarged view of the position B provided by the present invention.

In the figure, a measuring pipe 1, an inner liner 11, a measuring device 2, an excitation coil 21, a positive electrode block and a negative electrode block 22, a converter 23, a measuring instrument 24, a fastening device 3, a rack 31, a first threaded pipe 32, a sliding rail 33, a one-way component D, a first elastic component D1, an installation bin D2, a connecting plate D3, a rotating shaft D4, a limiting column D5, a limiting plate D6, a clamping groove D7, an inclined plane D8, a clamping block D9, a sealing component 4, a telescopic bin 41, a second elastic component 42, an expansion ring 43, a sealing bin 44, a threaded pipe component 5, an inner cavity 51, a second threaded pipe 52, a third elastic component 53 and a sealing ring 54 are arranged.

Detailed Description

As shown in fig. 1, 2, 3 and 4, an electromagnetic flowmeter convenient to mount comprises a measuring tube 1 with an inner lining 11 laid on the inner side, wherein the inner lining 11 in the device can be made of corrosion-resistant, high-temperature-resistant and wear-resistant polytetrafluoroethylene plastics, ceramics and other materials, a measuring device 2 is mounted on the measuring tube 1, a fastening device 3 is arranged on one side of the measuring device 2, and a sealing component 4 is arranged on one side of the fastening device 3; the other side of the measuring device 2 is provided with a threaded pipe assembly 5.

Specifically, the measuring device 2 comprises an excitation coil 21 fixedly mounted on the periphery of the measuring tube, and positive and negative electrode blocks 22 are arranged on the periphery of the excitation coil 21; the measuring device 2 further comprises a measuring instrument 24 with a converter 23, the instrument 24 is fixedly arranged at the upper end of the magnet exciting coil 21, and the measuring instrument in the device can be selected from measuring instruments used in LD-LDG type intelligent electromagnetic flow meters of Hangzhou Lindu electromechanical equipment ltd.

Specifically speaking, fastener 3 includes rack 31 of a plurality of fixed mounting in surveying buret 1 one side, and rack 31 mutually supports with slide rail 33 that sets up on first screwed pipe 32, every rack 31 upper end all is equipped with one-way subassembly D, rack 31 in this device can be annular array and distributes 2 ~ 4, rack 31 and survey the mounting means between buret 1 can adopt welding or screw connection, one-way device D sets up directly over rack 31, a row footpath direction for control rack 31, make fastener 3 and survey the cooperation between the buret inseparabler.

Further, the one-way component D includes an installation bin D2 having a plurality of first elastic members D1 on an upper end surface thereof, a connection plate D3 is disposed at a lower end of the first elastic member D1, an upper end of the connection plate D3 is connected to a position-limiting plate D6 having a position-limiting post D5 through a rotation shaft D4, the position-limiting post D5 is matched with a plurality of slots D7 disposed on the first threaded pipe 32, a lower end of the connection plate D3 is fixedly mounted with a block D9 having an inclined surface D8, an upper end of the first elastic member D1 in the device is welded to the upper end surface of the installation bin D2, and the other end is tightly attached to the connection plate D3 but not fixedly connected thereto, thereby facilitating rotation of the rotation shaft D3, thereby controlling the position-limiting post D5 to be matched with different slots D7, and the first elastic member D1 in the device is always in a compressed state, the slots D7 may be disposed as two symmetrically distributed slots D, and centers of the two slots D7 are located on a same, and the straight line is parallel to the motion track of the rack 31), so that the forward and backward movement of the rack is controlled according to the matching of the limiting column D5 and different clamping grooves D7.

Furthermore, seal assembly 4 is including installing in the flexible storehouse 41 of slide rail 33 one side, and be equipped with second elastic component 42 in flexible storehouse 41, flexible storehouse 41 front end is connected with the sealed storehouse 44 of taking expansion ring 43 through trachea q, this device second elastic component 42 be provided with do benefit to control flexible storehouse 41 and kick-back, when second elastic component 42 is in free state, the length of flexible storehouse 41 keeps unanimous with the length of slide rail 33, expansion ring 43 is close to first screwed pipe 32 and sets up, and expansion ring 43 inflation direction is followed the expansion of first screwed pipe 32 diameter direction toward centre of a circle direction, sealed storehouse 44 is provided with and is favorable to the stability of trachea q.

Specifically, the threaded pipe assembly 5 comprises a second threaded pipe 52 provided with an inner cavity 51, the tail end of the inner cavity 51 is connected with the measuring pipe 1 through a third elastic piece 53, a sealing ring 54 is further arranged at the front end of the inner cavity 51, the first elastic piece D1, the second elastic piece 42 and the third elastic piece 53 in the device can be springs or elastic rubber columns, and the third elastic piece 53 in the device is always in a compressed state, so that the measuring pipe 1 is tightly matched with the first threaded pipe 32.

The working principle is as follows: when the product needs to be installed, the first threaded pipe 32 and the second threaded pipe 52 are respectively installed on two sides of the pipeline in a threaded connection mode, the measuring pipe 1 is pressed towards one side of the second threaded pipe 52, the measuring pipe 1 is partially accommodated into the inner cavity 51 under the action of the third elastic piece 53, the axis of the measuring pipe 1 corresponds to the first threaded pipe 32, the measuring pipe 1 is loosened, the measuring pipe 1 is tightly attached to the first threaded pipe 32 under the action of the third elastic piece 53, in the rebounding process of the third elastic piece 53, the gear teeth of the rack 53 are contacted with the inclined surface D8 to jack the clamping block D9, the clamping block D9 does not limit the rack 53 to move forwards along the sliding rail 33, the front end of the rack 53 extrudes the telescopic bin 41 while the rack 53 moves forwards, the volume of the telescopic bin 41 is reduced, so that the gas in the telescopic bin 41 moves into the sealing bin 41 along the air pipe q, the pressure in the sealing bin 44 is increased, and the expansion ring 43 is, therefore, the sealing effect is achieved, when fluid passes through the measuring tube 1, the charged particles in the fluid cut magnetic induction lines generated by the excitation coil 21, induced potential signals in direct proportion to the measured values are led out by the positive and negative electrode blocks 22, the induced potential signals are amplified and converted into uniform standard signals by the converter 23 and transmitted into the measuring instrument 24 for measurement, when the product needs to be disassembled, only the rotating shaft needs to be rotated, the inclined plane D8 is converted towards 180 degrees, the limiting column D5 is matched with the clamping groove D7 on the other side, the rack 31 can be pulled out at the moment, and the second threaded tube 52 and the first threaded tube 32 are reversely disassembled according to the installation steps.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although terms such as the measuring tube 1, the lining 11, the measuring device 2, the exciting coil 21, the positive and negative electrode blocks 22, the converter 23, the measuring instrument 24, the fastening device 3, the rack 31, the first threaded tube 32, the slide rail 33, the one-way member D, the first elastic member D1, the mounting bin D2, the connecting plate D3, the rotating shaft D4, the restraining column D5, the restraining plate D6, the locking slot D7, the inclined surface D8, the locking block D9, the sealing assembly 4, the telescopic bin 41, the second elastic member 42, the expansion ring 43, the sealing bin 44, the threaded tube assembly 5, the inner cavity 51, the second threaded tube 52, the third elastic member 53, and the sealing ring 54 are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. The utility model provides an electromagnetic flowmeter convenient to installation, includes that measuring pipe (1) of inside lining (11) have been laid, its characterized in that: the measuring tube (1) is provided with a measuring device (2), one side of the measuring device (2) is provided with a fastening device (3), and one side of the fastening device (3) is provided with a sealing component (4); and a threaded pipe assembly (5) is arranged on the other side of the measuring device (2).

2. An electromagnetic flow meter as claimed in claim 1, which is easy to install, wherein: the measuring device (2) comprises an excitation coil (21) fixedly arranged on the periphery of the measuring tube, and positive and negative electrode blocks (22) are arranged on the periphery of the excitation coil (21); the measuring device (2) also comprises a measuring instrument (24) with a converter (23), and the instrument (24) is fixedly arranged at the upper end of the excitation coil (21).

3. An electromagnetic flow meter as claimed in claim 1, which is easy to install, wherein: fastener (3) include a plurality of fixed mounting in survey rack (31) of buret (1) one side, just rack (31) with set up slide rail (33) on first screwed pipe (32) and mutually support, every rack (31) upper end all be equipped with one-way subassembly (D).

4. An electromagnetic flow meter as claimed in claim 3, which is easy to install, wherein: one-way subassembly (D) include that the up end installs installation storehouse (D2) of a plurality of first elastic component (D1), first elastic component (D1) lower extreme be equipped with connecting plate (D3), connecting plate (D3) upper end be connected with limiting plate (D6) of taking spacing post (D5) through pivot (D4), just spacing post (D5) and a plurality of set up in first screwed pipe (32) on draw-in groove (D7) mutually support, connecting plate (D3) lower extreme fixed mounting have fixture block (D9) of taking inclined plane (D8).

5. An electromagnetic flow meter as claimed in claim 4, which is easy to install, wherein: seal assembly (4) including install in slide rail (33) one side flexible storehouse (41), just flexible storehouse (41) in be equipped with second elastic component (42), flexible storehouse (41) front end pass through trachea (q) and be connected with sealed storehouse (44) of taking expansion ring (43).

6. An electromagnetic flow meter as claimed in claim 1, which is easy to install, wherein: threaded tube subassembly (5) including second threaded tube (52) that are equipped with inner chamber (51), inner chamber (51) terminal through third elastic component (53) connect survey buret (1), inner chamber (51) front end still be equipped with sealing washer (54).