Butterfly valve airtightness detection device

Abstract

The utility model discloses a butterfly valve air tightness detection device, which comprises a frame body, the upper surface of the frame body is fixedly connected with a lower clamp for placing a butterfly valve, the upper surface of the frame body is fixedly connected with a support frame right above the lower clamp, the two sides of the support frame are respectively provided with a clamping assembly for auxiliary fixation of the butterfly valve, and the upper surface of the frame body is fixedly connected with the lower clamp. The top of the supporting frame is fixedly connected with a first air cylinder, one end of a pneumatic rod of the first air cylinder penetrates through the supporting frame to be fixedly connected with an upper clamp, and the upper clamp and the lower clamp are both of a hollow structure. The butterfly valve air tightness detection device can be better and tightly attached to a butterfly valve, so that the air tightness of the butterfly valve during installation can be guaranteed, the accuracy of butterfly valve air tightness detection is improved, the butterfly valve can be prevented from inclining, the vertical installation state of the butterfly valve is guaranteed, and the use effect of the detection device is improved. And the detection device can be conveniently used by workers at night, and the application environment of the detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve detection technical field especially relates to a butterfly valve air tightness detection device. BACKGROUND

[0002] The butterfly valve is also called flap valve, it is a kind of simple structure regulating valve, can be used for low pressure pipeline medium switch control butterfly valve is the disc that the closing piece (valve lobe or butterfly plate) is for disc, rotates around valve shaft to reach the opening and closing of a kind of valve.

[0003] Through the search, the air tightness detection device of a kind of butterfly valve of announcement number CN219757653U is disclosed, a plurality of annular steps one are provided on the outer circumference of cylindrical protrusion one, which can be placed for different models of butterfly valve body, when cooperating with upper sealing part, the butterfly valve body can be sealed, however, the cylindrical protrusion of step is kept vertical state when being pressed down, if butterfly valve body is inclined, the misregistration between valve body and step is prone to occur, leading to the air tightness of butterfly valve during installation is insufficient, thereby affecting the air tightness detection result of butterfly valve. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a butterfly valve air tightness detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of butterfly valve air tightness detection device, including frame body, the upper surface of the frame body is fixedly connected with the lower clamp for placing butterfly valve, the upper surface of the frame body is fixedly connected with support frame in the position of lower clamp directly above, the both sides of the support frame are equipped with the clamping assembly for assisting the fixation of butterfly valve, the top of the support frame is fixedly connected with first air cylinder, one end of first air cylinder pneumatic rod is fixedly connected with upper clamp passing through support frame, the upper clamp and lower clamp are hollow structure, the upper clamp and lower clamp are circular platform, the adjacent end of the upper clamp and lower clamp is all set with gas hole, the frame body is equipped with the pneumatic assembly for blowing gas into butterfly valve.

[0007] As a further scheme of the utility model, the upper clamp is fixedly connected with gas pressure sensor, one side of the frame body is fixedly connected with display screen electrically connected with gas pressure sensor.

[0008] As a further scheme of the utility model, the clamping assembly includes two tension springs, two the tension springs are fixedly connected on the both sides of support frame, one end of two the tension springs is fixedly connected with rotating plate, and rotating plate is rotatably connected with frame body, the top of two the rotating plates is fixedly connected with arc-shaped elastic plate, one side of the frame body is equipped with power assembly for clamping butterfly valve by pushing arc-shaped elastic plate.

[0009] As a further scheme of the utility model, the power assembly comprises a second cylinder, the second cylinder is fixedly connected to one side of the frame body, one end of a pneumatic rod of the second cylinder is fixedly connected with a U-shaped frame penetrating through the frame body, and the U-shaped frame is provided with inclined extrusion grooves on both sides.

[0010] As a further scheme of the utility model, the pneumatic assembly comprises a gas pump, the gas pump is fixedly connected in the frame body, one end of a gas outlet of the gas pump is fixedly connected with a connecting pipe, and the connecting pipe is communicated with the lower clamp penetrating through the frame body.

[0011] As a further scheme of the utility model, one end of a gas inlet of the gas pump is fixedly connected with a gas inlet pipe, and the gas inlet pipe penetrates through the frame body.

[0012] As a further scheme of the utility model, two door plates for closing the frame body are hingedly connected in the frame body.

[0013] As a further scheme of the utility model, a lighting lamp for lighting at night is fixedly connected to one side of the frame body.

[0014] The utility model has the advantages of:

[0015] 1. The utility model discloses a butterfly valve air tightness detection device, which comprises a frame body, a first cylinder, a second cylinder, a rotating plate, a U-shaped frame, a gas pump, a connecting pipe, a gas inlet pipe and a door plate.

[0016] 2. The utility model discloses a butterfly valve air tightness detection device, which comprises a frame body, a first cylinder, a second cylinder, a rotating plate, a U-shaped frame, a gas pump, a connecting pipe, a gas inlet pipe and a door plate.

[0017] 3. The utility model discloses a butterfly valve air tightness detection device, which comprises a frame body, a first cylinder, a second cylinder, a rotating plate, a U-shaped frame, a gas pump, a connecting pipe, a gas inlet pipe and a door plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of a butterfly valve air tightness detection device provided by the utility model;

[0019] Figure 2 It is a three-dimensional structure schematic view of a butterfly valve air tightness detection device provided by the utility model;

[0020] Figure 3 A partial enlarged structure schematic view of the butterfly valve air tightness detection device is provided in the utility model.

[0021] Figure 4 A U-shaped frame enlarged structure schematic view of the butterfly valve air tightness detection device is provided in the utility model.

[0022] In the drawing: 1, frame body; 2, support frame; 3, illuminating lamp; 4, first air cylinder; 5, upper clamp; 6, lower clamp; 7, door plate; 8, display screen; 9, gas pressure sensor; 10, rotating plate; 11, connecting pipe; 12, air pump; 13, second air cylinder; 14, U-shaped frame; 15, arc-shaped elastic plate; 16, tension spring; 17, extrusion groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Referring to Figures 1-3 A butterfly valve air tightness detection device, the upper surface of the frame body 1 is fixed with the lower clamp 6 for placing the butterfly valve through bolts, the upper surface of the frame body 1 is fixed with the support frame 2 through bolts at the position directly above the lower clamp 6, the support frame 2 is provided with the clamping assembly for assisting the fixation of the butterfly valve on both sides, when the butterfly valve is installed, the butterfly valve is placed on the lower clamp 6, then the butterfly valve is clamped by the clamping assembly, and the vertical state of the butterfly valve is guaranteed.

[0025] The top of the support frame 2 is fixed with the first air cylinder 4 through bolts, one end of the pneumatic rod of the first air cylinder 4 passes through the support frame 2 and is fixed with the upper clamp 5 through bolts, the upper clamp 5 and the lower clamp 6 are hollow structures, the upper clamp 5 and the lower clamp 6 are circular truncated cones, the adjacent end of the upper clamp 5 and the lower clamp 6 is provided with the gas passing hole, the frame body 1 is provided with the pneumatic assembly for blowing gas into the butterfly valve, then the first air cylinder 4 is started, the first air cylinder 4 is elongated and pushes the upper clamp 5 to move downwards, so that the upper clamp 5 and the lower clamp 6 clamp and fix the butterfly valve, and since the upper clamp 5 and the lower clamp 6 are circular truncated cones, they can better tightly adhere to the butterfly valve, so that the air tightness of the butterfly valve during installation can be guaranteed, and the accuracy of the butterfly valve air tightness detection is improved.

[0026] The utility model discloses a gas pressure sensor 9 is fixed with bolt in upper clamp 5, the model of pressure sensor 9 is JYB-KB-CW-2000, and the one side of frame body 1 is fixed with the display screen 8 of electric connection with gas pressure sensor 9 through bolt, and the clamping assembly includes two tension springs 16, two tension springs 16 are welded on the both sides of support frame 2 respectively, and one end of two tension springs 16 is welded with rotating plate 10, and rotating plate 10 is rotatably connected with frame body 1, and the top of two rotating plates 10 is welded with arc elastic plate 15, and one side of frame body 1 is equipped with the power assembly of pushing arc elastic plate 15 and clamping butterfly valve, and the power assembly includes second air cylinder 13, and second air cylinder 13 is fixed on one side of frame body 1 through bolt, and one end of pneumatic rod of second air cylinder 13 passes through frame body 1 and is fixed with U-shaped frame 14 through bolt, and the both sides of U-shaped frame 14 are all equipped with inclined extrusion groove 17, and rotating plate 10 is located in extrusion groove 17, and starting second air cylinder 13, and second air cylinder 13 elongation pushes U-shaped frame 14 and moves, and U-shaped frame 14 will push rotating plate 10 and rotate through inclined extrusion groove 17, and rotating plate 10 will drive arc elastic plate 15 and move and lengthen tension spring 16, to make arc elastic plate 15 assist the clamping of butterfly valve, and under the action of tension spring 16, arc elastic plate 15 can be automatically reset when not clamping butterfly valve,

[0027] Especially, pneumatic assembly includes air pump 12, air pump 12 is fixed in frame body 1 through bolt, and one end of air outlet of air pump 12 is bonded with connecting pipe 11, and connecting pipe 11 passes through frame body 1 and is communicated with lower clamp 6, and one end of air inlet of air pump 12 is fixed with air inlet pipe through bolt, and air inlet pipe passes through frame body 1, when detecting butterfly valve, starting air pump 12, and air pump 12 will blow gas to butterfly valve through connecting pipe 11 and the gas hole of lower clamp 6, if butterfly valve gas tightness is good, gas will not enter into upper clamp 5, if butterfly valve gas tightness is bad, gas will pass through butterfly valve and enter into upper clamp 5, at this time, gas pressure sensor 9 will detect gas and show on display screen 8, to realize the gas tightness detection of butterfly valve, and two door plates 7 for closing frame body 1 are hinged in frame body 1, and one side of frame body 1 is fixed with illuminating lamp 3 for illuminating at night through bolt, and illuminating lamp 3 can illuminate at night, to supplement the brightness of night.

[0028] Working principle: when need to use, the butterfly valve is placed on the lower clamp 6, then the second cylinder 13 is started, the second cylinder 13 is elongated to push the U-shaped frame 14 to move, the U-shaped frame 14 pushes the rotating plate 10 to rotate through the inclined extrusion groove 17, the rotating plate 10 drives the arc elastic plate 15 to move and lengthens the tension spring 16, so that the arc elastic plate 15 assists the clamping of the butterfly valve, ensures the vertical state of the butterfly valve, then the first cylinder 4 is started, the first cylinder 4 is elongated to push the upper clamp 5 to move downward, so that the upper clamp 5 and the lower clamp 6 clamp and fix the butterfly valve, and since the upper clamp 5 and the lower clamp 6 are circular truncated cones, the butterfly valve can be better tightly fitted, so that the air tightness of the butterfly valve during installation can be ensured, the accuracy of the butterfly valve air tightness detection is improved, then the air pump 12 is started, the air pump 12 blows air into the butterfly valve through the connecting pipe 11 and the air hole of the lower clamp 6, if the butterfly valve air tightness is good, the gas will not enter the upper clamp 5, if the butterfly valve air tightness is not good, the gas will enter the upper clamp 5 through the butterfly valve, at this time the gas pressure sensor 9 detects the gas and displays it on the display screen 8, so as to realize the air tightness detection of the butterfly valve.

[0029] Finally, it should be pointed out that: for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A device for detecting the air tightness of a butterfly valve, comprising a frame (1), characterized in that, The upper surface of the frame body (1) is fixedly connected with the lower clamp (6) for placing the butterfly valve, the upper surface of the frame body (1) is fixedly connected with the support frame (2) above the lower clamp (6), both sides of the support frame (2) are provided with the clamping assembly for auxiliary fixing of the butterfly valve, the top of the support frame (2) is fixedly connected with the first air cylinder (4), one end of the pneumatic rod of the first air cylinder (4) penetrates through the support frame (2) and is fixedly connected with the upper clamp (5), the upper clamp (5) and the lower clamp (6) are hollow structures, the upper clamp (5) and the lower clamp (6) are circular truncated cone shapes, and adjacent ends of the upper clamp (5) and the lower clamp (6) are provided with air passing holes, and the frame body (1) is provided with the pneumatic assembly for blowing air into the butterfly valve.

2. The device for detecting the gas tightness of a butterfly valve according to claim 1, characterized in that, The upper clamp (5) is fixedly connected with the gas pressure sensor (9), and one side of the frame body (1) is fixedly connected with the display screen (8) electrically connected with the gas pressure sensor (9).

3. The device of claim 1, wherein the device is configured to detect a leak in the butterfly valve by detecting a change in the pressure of the gas in the chamber. The clamping assembly comprises two tension springs (16), both sides of the support frame (2) are fixedly connected with the two tension springs (16), one end of each of the two tension springs (16) is fixedly connected with the rotating plate (10), the rotating plate (10) is rotatably connected with the frame body (1), the top of each of the two rotating plates (10) is fixedly connected with the arc-shaped elastic plate (15), and one side of the frame body (1) is provided with the power assembly for clamping the butterfly valve by the arc-shaped elastic plate (15).

4. The device of claim 3, wherein the device further comprises a valve seat. The power assembly comprises a second air cylinder (13), the second air cylinder (13) is fixedly connected to one side of the frame body (1), one end of the pneumatic rod of the second air cylinder (13) penetrates through the frame body (1) and is fixedly connected with the U-shaped bracket (14), both sides of the U-shaped bracket (14) are provided with inclined extrusion grooves (17), and the rotating plate (10) is located in the extrusion groove (17).

5. The device of claim 1, wherein, The pneumatic assembly comprises a gas pump (12), the gas pump (12) is fixedly connected in the frame body (1), one end of the gas outlet of the gas pump (12) is fixedly connected with the connecting pipe (11), and the connecting pipe (11) penetrates through the frame body (1) and communicates with the lower clamp (6).

6. The device of claim 5, wherein, One end of the gas inlet of the gas pump (12) is fixedly connected with the air inlet pipe, and the air inlet pipe penetrates through the frame body (1).

7. The device of claim 1, wherein, Two door plates (7) for closing the frame body (1) are hingedly connected in the frame body (1).

8. The device of claim 7, wherein the device is configured to detect a leak in the butterfly valve by detecting a change in the pressure of the gas in the chamber. One side of the frame body (1) is fixedly connected with the illuminating lamp (3) for illuminating at night.

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