CN210135313U

CN210135313U - Butterfly valve capable of measuring position

Info

Publication number: CN210135313U
Application number: CN201921037473.3U
Authority: CN
Inventors: 王海祥; 万宏; 郑李明; 于继明
Original assignee: Jinling Institute of Technology
Current assignee: Jinling Institute of Technology
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-03-10
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a butterfly valve that can measuring position, including the valve body, the valve body top is connected with the transmission seat, and swing joint has rotatable valve rod in the middle of valve body and the transmission seat, is provided with on the transmission seat and can drives valve rod pivoted handle, and the valve rod has the valve plate at the valve body internal partial connection, the safety cover is connected at the transmission seat top, the safety cover top is provided with a terminal and No. two terminals, is provided with measuring device in the safety cover. The utility model discloses a setting realizes valve rod turned angle's position measurement at the measuring device that the valve rod top set up, and then obtains in the in-service use process, the accurate aperture of valve plate.

Description

Butterfly valve capable of measuring position

Technical Field

The utility model relates to a valve equipment technical field, concretely relates to butterfly valve that can measuring position.

Background

The butterfly valve is a common pipeline connecting device, the opening of which can be adjusted, and is commonly used in pipelines needing to control flow. However, when the valve plate is used in the pipeline, the actual opening and closing angle of the valve plate cannot be known, so that the accurate opening control of the valve plate cannot be realized.

Disclosure of Invention

The utility model is directed to above-mentioned defect, a butterfly valve that can measure position is provided, its concrete technical scheme as follows:

a butterfly valve capable of measuring position comprises a valve body, a transmission seat is connected above the valve body, a rotatable valve rod is movably connected between the valve body and the transmission seat, a handle capable of driving the valve rod to rotate is arranged on the transmission seat, the valve rod is connected with a valve plate in the valve body in a partially connected mode, the top of the transmission seat is connected with a protective cover, a first binding post and a second binding post are arranged on the top of the protective cover, a measuring device is arranged in the protective cover and comprises a connecting plate connected to the top of the transmission seat, the top of the connecting plate is connected with a measuring seat, the measuring seat is of a hollow cylindrical structure, an arc-shaped resistance plate is fixedly connected to the inner wall of the top of the measuring seat, the center angle spanned by the resistance plate is not less than 90 degrees, the center of the resistance plate is located on a valve rod axis, a measuring rod coaxial with, the end part of the contact rod is provided with a contact head, the contact head is an elastic sheet made of conductive metal materials, the end part of the contact head is contacted with the resistance plate, and the contact heads are all contacted with the resistance plate within the rotation range of the valve rod; the sliding head is made of a conductive metal material, the sliding head is connected with the measuring rod through a fixing bolt, the fixing bolt is made of a conductive metal material, a wiring terminal A is arranged at the end part of the fixing bolt, a wiring terminal B and a wiring terminal C are respectively arranged at two ends of the resistance plate, the wiring terminal A is connected with the wiring terminal I through a conducting wire, and the wiring terminal B is connected with the wiring terminal II through a conducting wire; the wiring terminal C is connected with the wiring terminal III through a conducting wire; the protective cover and the measuring seat are made of insulating materials.

As an improvement of the scheme, the sliding head is of a hollow circular tube structure with an opening at the lower end, the sliding head is sleeved at the end part of the measuring rod and fixed through a fixing bolt, and the sliding head and the measuring rod are matched with the positioning groove through a positioning bulge to realize angular spacing.

The measurement method using the above apparatus comprises the following steps:

a. loading 5V direct current voltage on the second binding post and the third binding post;

b. rotating the handle, rotating the valve plate to a position to be measured, measuring the voltage between the first binding post and the third binding post, and recording the voltage as an x value;

c. calculating the current opening condition, and if the butterfly valve is completely closed to be 0 degrees, the butterfly valve is rotated forwards to be-90 degrees in maximum opening degree, and the butterfly valve is rotated backwards to be 90 degrees in maximum opening degree, the opening degree formula of any current position is as follows: x/5 is 180-90 deg.

Compared with the prior art, the utility model adopts the above technical scheme, the technical effect who has is:

1. the utility model realizes the position measurement of the rotating angle of the valve rod through the measuring device arranged at the top of the valve rod, thereby obtaining the accurate opening degree of the valve plate in the actual use process;

2. the measuring device of the butterfly valve disclosed in the utility model can be additionally arranged in the existing butterfly valve device to realize the valve plate aperture measurement of the existing butterfly valve;

3. the utility model discloses the whole contact of contact head and resistance board of well contact rod tip, the numerical value that records be continuous smooth change's numerical value, and the valve plate aperture information that obtains is accurate and accurate.

Drawings

FIG. 1 is a schematic diagram of the butterfly valve structure capable of measuring position;

FIG. 2 is a cross-sectional view of the butterfly valve with a measurable position;

FIG. 3 is an enlarged view at A;

FIG. 4 is a schematic view of a sliding head structure;

FIG. 5 is a schematic view of the structure of the measuring device;

FIG. 6 is a plan view of the measurement unit;

FIG. 7 is a schematic wiring diagram of example 2;

reference numerals: 1. a valve body; 2. a transmission seat; 3. a handle; 4. a protective cover; 5. a first wiring terminal; 6. a second wiring terminal; 7. a valve stem; 8. a measuring device; 9. a measuring rod; 10. fixing the bolt; 11. a binding post A; 12. a binding post B; 13. a binding post C; 14. a third wiring terminal; 801. a connecting plate; 802. a measuring seat; 803. a resistance plate; 804. a sliding head; 805. a contact lever; 806. a contact head; 807. positioning a groove; 808. positioning the projection; 809. a seat board.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.

Example 1

As shown in figures 1 and 2, the butterfly valve capable of measuring the position comprises a valve body 1, a transmission seat 2 is connected above the valve body 1, a rotatable valve rod 7 is movably connected between the valve body 1 and the transmission seat 2, a handle 3 capable of driving the valve rod 7 to rotate is arranged on the transmission seat 2, the valve rod 7 is internally connected with a valve plate in the valve body 1, a protection cover 4 is connected to the top of the transmission seat 2, a first binding post 5 and a second binding post 6 are arranged at the top of the protection cover 4, and a measuring device 8 is arranged in the protection cover 4.

As shown in fig. 3, 4 and 5, the measuring device 8 includes a connecting plate 801 connected to the top of the transmission seat 2, the top of the connecting plate 801 is connected with a measuring seat 802, the measuring seat 802 is of a hollow cylindrical structure, a seat plate 809 and a connecting plate 801 are arranged on the outer wall of the bottom of the measuring seat 802, an arc-shaped resistance plate 803 is fixedly connected to the inner wall of the top of the measuring seat 802, the center angle spanned by the resistance plate 803 is 180 °, the center of the resistance plate 803 is located on the axis of the valve rod 7, a measuring rod 9 coaxial with the valve rod 7 is arranged at the center of the top of the valve rod 7, the end of the measuring rod 9 is connected with a sliding head 804, the sliding head 804 is of a hollow circular tube structure with an opening at the lower end, the sliding head 804 is sleeved on the end of the measuring rod 9 and fixed by. A contact bar 805 protruding from the side of the sliding head 804 is provided, a contact 806 is provided at the end of the contact bar 805, the contact 806 is an elastic sheet made of conductive metal material, the end of the contact 806 contacts the resistance plate 803, and the contact 806 contacts the resistance plate 803 within the rotation range of the valve rod 7; the sliding head 804 and the fixing bolt 10 are both made of conductive metal materials, the end of the fixing bolt 10 is a binding post A11, the two ends of the resistor half ring 803 are a binding post B12 and a binding post C13 respectively, the binding post A11 is connected with the first binding post 5 through a wire A, and the binding post B12 is connected with the second binding post 6 through a wire B; the terminal C13 is connected with the third terminal 14 through a lead C; the protective cover 4 and the measuring base 802 are made of insulating materials.

The measurement method using the above apparatus comprises the following steps:

a. loading 5V direct current voltage on the second binding post 6 and the third binding post 14; the second binding post 6 is connected with the positive pole, and the third binding post 14 is connected with the negative pole.

b. Rotating the handle 3, rotating the valve plate to a position to be measured, and measuring the voltage (recorded as an x value) between the first binding post 5 and the third binding post 14;

c. calculating the current opening condition, and if the butterfly valve is completely closed to be 0 degrees, the butterfly valve is rotated forwards to be-90 degrees in maximum opening degree, and the butterfly valve is rotated backwards to be 90 degrees in maximum opening degree, then any current opening degree formula is as follows: x/5 is 180-90 deg.

For example, when the measured value is 2.5V, the calculation results in 0 °, corresponding to the fully closed position; when the measured value is 0V, the corresponding calculation result is-90 degrees, and the corresponding rotation is carried out forward (the direction of 13 in the figure) until the maximum opening degree is-90 degrees; measuring-54 °, corresponding to a rotation of 54 ° in the forward direction (direction of 13 in the figure); if the measured value is 3V, the calculation result is 18 degrees, and the rotation is 18 degrees backwards (the direction of 12 in the figure).

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features.

Claims

1. A butterfly valve capable of measuring position comprises a valve body, a transmission seat is connected above the valve body, a rotatable valve rod is movably connected between the valve body and the transmission seat, a handle capable of driving the valve rod to rotate is arranged on the transmission seat, the valve rod is connected with a valve plate in the valve body, the butterfly valve is characterized in that the top of the transmission seat is connected with a protective cover, a first binding post and a second binding post are arranged on the top of the protective cover, a measuring device is arranged in the protective cover and comprises a connecting plate connected to the top of the transmission seat, the top of the connecting plate is connected with a measuring seat, the measuring seat is of a hollow cylindrical structure, an arc-shaped resistance plate is fixedly connected to the inner wall of the top of the measuring seat, a center angle spanned by the resistance plate is not less than 90 degrees, the center of the resistance plate is located on the, the side part of the sliding head is provided with a protruding contact rod, the end part of the contact rod is provided with a contact head, the contact head is an elastic sheet body made of a conductive metal material, the end part of the contact head is contacted with the resistance plate, and the contact heads are all contacted with the resistance plate in the rotating range of the valve rod; the measuring device comprises a measuring rod, a sliding head, a fixing bolt, a wiring terminal A, a wiring terminal B and a wiring terminal C, wherein the sliding head is made of a conductive metal material and is connected with the measuring rod through the fixing bolt; the wiring terminal C is connected with the wiring terminal III through a conducting wire; the protective cover and the measuring seat are made of insulating materials.

2. The butterfly valve capable of measuring the position according to claim 1, wherein the sliding head is a hollow round tube structure with an open lower end, the sliding head is sleeved at the end of the measuring rod and fixed by a fixing bolt, and the angular position limitation is realized between the sliding head and the measuring rod by matching a positioning protrusion and a positioning groove.