CN218724409U

CN218724409U - Overload protection device for inner bridge flowmeter

Info

Publication number: CN218724409U
Application number: CN202222772085.8U
Authority: CN
Inventors: 王忠臣; 王威然; 王伟
Original assignee: Youbisheng Intelligent Technology Xi'an Co ltd
Current assignee: Youbisheng Intelligent Technology Xi'an Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-24
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses an inner axle flowmeter overload protection device, including gauge outfit, watchcase tube socket, flange seat, sensor, target rod, target piece cushion, protection tube, elasticity target piece, mounting hole, connector link, the gauge outfit bottom sets up the watchcase tube socket, the flange seat sets up in watchcase tube socket side bottom, the sensor passes through watchcase tube socket connection in gauge outfit, the target rod is installed in the sensor bottom, two target piece cushion rear end is fixed in target rod side lower part respectively, the protection tube is installed in the sensor outside, two mounting holes in the vertical distribution in elasticity target piece upper portion, and the elasticity target piece passes through the mounting hole to be installed in target piece cushion front end, the connector link sets up in elasticity target piece rear end, and the connector link sets up between two mounting holes. The utility model provides an appear among the sensor load small pipeline that the backward flow causes flowmeter sensor overload damage easily, two positive and negative directions of sensor of the small flow instrument of heavy-calibre carry out overload protection's problem in the measurement.

Description

Overload protection device for inner bridge flowmeter

Technical Field

The utility model relates to an inner bridge flowmeter field especially relates to an inner bridge flowmeter overload protection device.

Background

In a medium-large caliber flowmeter in use, because of large pipe diameter, bubbles are easily generated and the pressure of a gas medium is higher than a flow design value under the condition that the opening speed of a valve is too high, the flow speed and the flow are far larger than the design value, if the flow sensor is not subjected to limiting overload protection, overload damage to the flow sensor is inevitably caused, for example, in a patent disclosed in the publication No. CN206709905U, the large caliber is easy to cause the backflow phenomenon of fluid when the control valve regulates the flow, the overload protection of the flowmeter is generally designed in a one-way flow direction, and because the medium in a sensor load small pipeline is easy to cause the overload damage of the flow sensor if the backflow phenomenon occurs, the overload protection must be carried out on the sensor of a small flowmeter specially used for measuring the medium-large caliber in the positive and negative directions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inner bridge flowmeter overload protection device to solve above-mentioned technical problem.

In order to realize the purpose, the utility model adopts the following technical proposal: the utility model provides an inner bridge flowmeter overload protection device, includes gauge outfit, watchcase tube socket, flange seat, sensor, target bar, target piece cushion, protection tube, elasticity target piece, mounting hole, connector link, the gauge outfit bottom sets up the watchcase tube socket, the flange seat sets up in watchcase tube socket side bottom, the sensor passes through the watchcase tube socket and connects in the gauge outfit, the target bar is installed in the sensor bottom, two target piece cushion rear end is fixed in target bar side lower part respectively, the protection tube is installed in the sensor outside, two mounting holes of the vertical distribution in elasticity target piece upper portion, and the elasticity target piece passes through the mounting hole and install in target piece cushion front end, the connector link sets up in elasticity target piece rear end, and the connector link sets up between two mounting holes.

On the basis of the technical scheme, the protection tube comprises a tube body, a limiting block, a rectangular groove, sliding holes and connecting columns, the tube body is fixed at the bottom end of the flange seat, the limiting block is arranged at the bottom end of the tube body, the rectangular groove is formed in the middle of the limiting block, the rectangular groove corresponds to the bottom of the target rod, the sliding holes are formed in the bottom of the side end of the tube body respectively and correspond to the target piece cushion blocks respectively, the connecting columns are arranged at the outer ends of the tube body, and the connecting columns are arranged between the two sliding holes.

On the basis of the technical scheme, the connecting column is hinged with the elastic target sheet through the connecting buckle.

Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a four directions of rectangular channel of overload stopper are to the spacing protection of target pole, and the protection tube is to the protection of elasticity target piece reverse displacement. Avoiding the influence of backflow on the sensor.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is a schematic view of the target rod structure of the present invention.

Fig. 3 is a sectional view of the elastic target of the present invention.

Fig. 4 is a sectional view of the protection tube of the present invention.

In the figure: 1. the device comprises a gauge outfit, 2, a watchcase tube seat, 3, a flange seat, 4, a sensor, 5, a target rod, 6, a target sheet cushion block, 7, a protection tube, 8, an elastic target sheet, 9, a mounting hole, 10, a connecting buckle, 11, a tube body, 12, a limiting block, 13, a rectangular groove, 14, a slide hole, 15 and a connecting column.

Detailed Description

The invention is explained in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 to 4, an overload protection device for an internal bridge flowmeter comprises a gauge head 1, a case tube seat 2, a flange seat 3, a sensor 4, a target rod 5, a target sheet cushion block 6, a protection tube 7, an elastic target sheet 8, mounting holes 9 and a connecting buckle 10, wherein the case tube seat 2 is arranged at the bottom of the gauge head 1, the flange seat 3 is arranged at the bottom of the side end of the case tube seat 2, the sensor 4 is connected to the gauge head 1 through the case tube seat 2, the target rod 5 is arranged at the bottom end of the sensor 4, the rear ends of the target sheet cushion blocks 6 are respectively fixed at the lower part of the side end of the target rod 5, the protection tube 7 is arranged at the outer side of the sensor 4, two mounting holes 9 are vertically distributed at the upper part of the elastic target sheet 8, the elastic target sheet 8 is arranged at the front end of the target sheet cushion block 6 through the mounting holes 9, the connecting buckle 10 is arranged at the rear end of the elastic target sheet 8, and the connecting buckle 10 is arranged between the two mounting holes 9.

Protection tube 7 includes pipe shaft 11, stopper 12, rectangular channel 13, slide opening 14, spliced pole 15, pipe shaft 11 is fixed in flange seat 3 bottom, stopper 12 sets up in pipe shaft 11 bottom, rectangular channel 13 is opened in stopper 12 middle part, and rectangular channel 13 is corresponding to 5 bottoms of target pole, two slide opening 14 is opened respectively in 11 side bottoms of pipe shaft, and slide opening 14 is corresponding to target piece cushion 6 respectively, spliced pole 15 sets up in 11 outer ends of pipe shaft, and spliced pole 15 sets up between two slide openings 14.

The connecting column 15 is hinged with the elastic target sheet 8 through a connecting buckle 10.

The utility model discloses a theory of operation: fluid flow in the big pipe diameter produces the vibration through elasticity target plate 8, elasticity target plate 8 passes through target plate cushion 6 with vibration frequency and transmits to target pole 5, target pole 5 carries out the flow record with vibration frequency transmission to sensor 4 thereupon, when valve regulation leads to flow catastrophe or produces the backward flow, elasticity target plate 8 passes through connector link 10 with spliced pole 15 the power that receives and transmits in pipe shaft 11, it avoids receiving the damage to stabilize elasticity target plate 8, continue to transmit vibration frequency in slide opening 14 in target pole through reciprocal promotion target plate cushion 6, when pipe shaft 11 inside target pole 5 receives the violent vibration of equidirectional not because of the backward flow, the rectangular channel 13 of stopper 12 limits the vibration range of target pole 5, and absorbed energy transmits to pipe shaft 11 and avoids the sensor to be impaired because of the vibration of target pole 5.

The foregoing is a preferred embodiment of the present invention, and for those skilled in the art, in light of the teachings of the present invention, variations, modifications, substitutions and changes may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an inner bridge flowmeter overload protection device, includes gauge outfit (1), watchcase tube socket (2), flange seat (3), sensor (4), target bar (5), target piece cushion (6), protection tube (7), elasticity target piece (8), mounting hole (9), connector link (10), its characterized in that: gauge outfit (1) bottom sets up watchcase tube socket (2), flange seat (3) set up in watchcase tube socket (2) side bottom, sensor (4) are connected in gauge outfit (1) through watchcase tube socket (2), install in sensor (4) bottom, two target piece cushion (6) rear end is fixed in target piece (5) side lower part respectively, install in sensor (4) outside protection tube (7), two mounting holes (9) of the vertical distribution in elasticity target piece (8) upper portion, and elasticity target piece (8) install in target piece cushion (6) front end through mounting hole (9), connector link (10) set up in elasticity target piece (8) rear end, and connector link (10) set up between two mounting holes (9).

2. The overload protection device for the inner bridge flowmeter as recited in claim 1, wherein: protection tube (7) are including pipe shaft (11), stopper (12), rectangular channel (13), slide opening (14), spliced pole (15), pipe shaft (11) are fixed in flange seat (3) bottom, stopper (12) set up in pipe shaft (11) bottom, rectangular channel (13) are opened in stopper (12) middle part, and rectangular channel (13) are corresponding to target pole (5) bottom, two slide opening (14) are opened respectively in pipe shaft (11) side bottom, and slide opening (14) are corresponding to target piece cushion (6) respectively, spliced pole (15) set up in pipe shaft (11) outer end, and spliced pole (15) set up between two slide openings (14).

3. The overload protection device for the inner bridge flowmeter according to claim 2, characterized in that: the connecting column (15) is hinged with the elastic target sheet (8) through a connecting buckle (10).