CN112213046A

CN112213046A - Valve gas tightness detection device

Info

Publication number: CN112213046A
Application number: CN202010981168.0A
Authority: CN
Inventors: 戴金山
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-01-12

Abstract

The invention belongs to the field of valve detection, and particularly relates to a valve air tightness detection device which comprises a machine body shell, wherein a main air box is arranged inside the right side of the machine body shell, an air source and a control center are arranged inside the main air box, a first button is arranged on the rear side of the upper end surface of the main air box, a second button is arranged on the left side of the first button, a first air pipe is arranged in the middle of the left end surface of the main air box, four second air pipes are uniformly distributed around the first air pipe, and the four second air pipes are thinner than the first air pipe; the flange clamping devices are connected to the tail ends of the four second air pipes, and the flanges with different diameters and apertures in a certain range can be clamped by inflating the adjusting positions; the air inflation detection device can seal pipelines with different apertures and then ventilate to detect air tightness. Can carry out effectual self-adaptation centre gripping and end shutoff of ventilating to the valve, adapt to different valves and carry out the gas tightness and detect.

Description

Valve gas tightness detection device

Technical Field

The invention belongs to the field of valve detection, and particularly relates to a valve air tightness detection device.

Background

The valve is the instrument that we often see in life, for example tap is exactly a miniature valve, other for example fire hydrant etc. all are some valves, the valve has big or little, the quality also has good or bad, the poor valve of quality not only can reveal certainly, still can cause the abnormal sound, influence people's work and life, consequently, it is very important to detect the valve before the valve leaves the factory, present valve class is various, the valve flange size of flanged, the pipe diameter size is all different, do not have a detection device can be fine adaptation multiple valve and detect, need change different devices during the detection, even some valves can't find suitable device to detect, consequently, it seems very crucial that a valve detection device that can adapt to different size flanges and different pipe diameters seems to design one kind, very key device appears to detect, therefore, design one kind of valve detection device that can adapt to different size flanges

Disclosure of Invention

In order to solve the problems, the invention provides a valve air tightness detection device which can be suitable for clamping and detecting valves with different flanges and pipe diameters.

In order to achieve the purpose, the invention adopts the following technical scheme: a valve airtightness detection device comprises a machine body shell, wherein a main gas box is arranged inside the right side of the machine body shell, a gas source and a control center are arranged inside the main gas box, a first button is arranged on the rear side of the upper end face of the main gas box, a second button is arranged on the left side of the first button, a first gas pipe is arranged in the middle of the left end face of the main gas box, four second gas pipes are uniformly distributed around the first gas pipe, and the four second gas pipes are thinner than the first gas pipe;

the flange clamping devices are connected to the tail ends of the four second air pipes, and the flanges with different diameters and apertures in a certain range can be clamped by inflating after the positions of the flanges are adjusted;

the air inflation detection device can seal pipelines with different apertures and then ventilate to detect air tightness.

When the valve is to be detected, the switch of the main gas tank is opened first, so that the interior of the main gas tank is in an inflated state, which is the prior art and is not described herein. Foretell first button even has the second air passage on switch control first trachea upper portion, and foretell second button connecting switch controls the third air passage of first trachea lower part, and this control button and switch are prior art. Ventilate through first trachea and four second tracheas, can make flange clamping device to the valve flange carry out the sealed back of adaptation aperture to ventilate and detect when ventilating the department when valve detects. The clamping of the flange mainly lies in the clamping of the hole on the flange, the aperture is smaller, the clamping needs much less gas than the sealing valve hole, so the pipe diameter of the second air pipe is smaller than that of the first air pipe.

The flange clamping device comprises a clamping part, the clamping part comprises a handheld handle, the handheld handle is arranged at each end of the second air pipe, a third button is arranged on the side wall of the handheld handle, a fourth button is arranged on the left side of the third button, a square limiting block is arranged at each end of the second air pipe based on the principle of the handheld handle, a square clamping rod is arranged on the left end face of the square limiting block, the square clamping rod is provided with a cylindrical air inflation rod at the left end, an air bag is arranged on the outer ring of the head of the circular air inflation rod, a first air passage penetrating through the circular air inflation rod to the second air pipe is arranged inside the clamping part, and a first air vent is arranged on the side wall, connected with the air bag, of the first air passage. The third button controls the first air passage to be opened, and the fourth button controls the air release when the flange clamping device is removed after the device is used up.

Four the clamping part peripheral hardware has the track disc, be equipped with four track groups on the track disc, a clamping part slides in the track group that corresponds, track group includes first circular arc track, the straight track of second, third circular arc track, first circular arc track, third circular arc track link to each other at the middle part through the straight track of second, the orbital radian of first circular arc track, third circular arc all is slightly less than half pi. The arrangement of the track group can adapt to different flange diameters and hole numbers within a certain range, and the flange of the valve can be well clamped and fixed after at least three non-adjacent holes are clamped through adjustment according to the change of hole positions.

The one end bottom surface that the gasbag was faced square screens pole has the certain distance from circular pole of inflating, is fold condition when it is packed up, the gasbag is equipped with eight magnetic plate group towards square screens pole one end subaerial, every magnetic plate group includes first magnetic plate, second magnetic plate, every first magnetic plate attracts mutually with the second magnetic plate when the state is packed up to the gasbag, per two be equipped with certain gasbag area of buckling between the magnetic plate group, the gasbag area of buckling is inflated and is extended along with the gasbag. The arrangement of the eight magnetic plate groups in the air bag not only can automatically magnetically adsorb and retract the air bag when the air bag is empty, but also can ensure that the shape of the air bag is not disordered; it is stretching after aerifing, has guaranteed the comparatively horizontality of gasbag bottom, and skew of traditional gasbag can not appear, and the inhomogeneous condition of inflation shape can also laminate with the flange rear surface, guarantees that follow-up aerifing the back has an effectual clamping-force to the flange, can be better carry out the centre gripping to the flange of the different hole numbers of different diameters and hole position, can also adapt to different flange widths through the gasbag automatically, accomplish until the centre gripping.

The diameter of the cylindrical inflating rod is smaller than the width of the track in the track group, the side length of the square clamping rod is slightly smaller than the width of the track in the track group, but the diagonal length of the square clamping rod is larger than the width of the track in the track group, and an inward inclination angle with a certain angle is formed towards the end of the cylindrical inflating rod. The diameter of the cylindrical inflating rod is smaller than the width of the track, so that the diameter of the cylindrical inflating rod can slide in the track to adjust the position, the square clamping rod is used for preliminarily limiting the position of the clamping part after aligning the flange hole, the subsequent operation is convenient, and the cylindrical inflating rod is used for being more convenient to pull out and insert into the track when being designed with a certain inclination angle

The inflation detection device comprises a second vent channel arranged above the inner portion of a first air tube, a third vent channel is further arranged on the lower portion of the second vent channel, the output end of the first air tube is connected with a ventilation shell, the ventilation shell penetrates through a track disc from the middle portion, a fourth vent channel which is communicated with the upper portion and the lower portion is arranged inside the ventilation shell, the left opening of the fourth vent channel is connected with the second vent channel, a middle vent channel is arranged in the middle of the ventilation shell, the middle vent channel faces the right opening, a second air bag is arranged at the right edge of the ventilation shell, and two second vent ports are arranged between the ventilation shell and the second air bag. The air inlet of the valve is completely blocked and then detected, the detected data are more accurate, other detections such as air tightness detection under different degrees of pressure of the valve can be carried out after sealing, and if the valve cannot be sealed, the detections cannot be carried out. After the detection is finished, the main air box is closed, no air is filled into the second air passage any more, air in the second air bag flows back, and the device is reset.

The left side of the ground of the body shell is provided with a valve mounting seat, the left end face inside the body shell is provided with a plugging disc, and the central part of the plugging disc is provided with an airflow detector. The air flow detector is in the prior art, can reflect and collect the detected air flow through the situation, and sequentially judges the air tightness of the valve.

In conclusion, this device simple structure can carry out the centre gripping to the flange of different diameter size, different hole number, hole position, ventilates after the shutoff to different aperture valves and detects the gas tightness.

Its flange clamping device can adapt to different flange positions, carries out inseparabler laminating centre gripping through magnetism board group flange to can adapt to the flange of different thickness and aerify the clamp tightly until complete centre gripping.

The inflation detection device can be used for carrying out ventilation detection after filling and sealing valves with different apertures.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cutaway isometric view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

FIG. 5 is another perspective view of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at H;

FIG. 7 is an enlarged view of a portion of FIG. 2 taken along line B-B;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C;

FIG. 9 is an enlarged view of a portion of FIG. 8 at D;

FIG. 10 is a cross-sectional view taken at F-F of FIG. 9;

FIG. 11 is a view of the bladder of FIG. 10 in an inflated condition;

FIG. 12 is an enlarged view of a portion of FIG. 11 at G;

fig. 13 is a cross-sectional view taken at E-E of fig. 9.

In the figure: the air-conditioning device comprises a body shell 1, a main air box 2, a first button 3, a second button 4, a first air pipe 6, a second air pipe 5, a handheld handle 7, a third button 28, a fourth button 29, a square limiting block 22, an air bag 26, a first air passage 88, a first air vent 89, a track disc 8, a first arc track 31, a second straight track 32, a third arc track 33, a first magnetic plate 35, a second magnetic plate 36, an air bag bending belt 39, a second air vent 18, a third air vent 17, a ventilation shell 9, a fourth air vent 20, a middle air passage 16, a second air bag 14, a second air vent 15, a valve mounting seat 10, a plugging disc 11 and an air flow detector 12.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to the attached drawings 1-13, the valve airtightness detection device comprises a body shell 1, a main gas tank 2 is arranged inside the right side of the body shell 1, a gas source and a control center are arranged inside the main gas tank 2, a first button 3 is arranged on the rear side of the upper end face of the main gas tank, a second button 4 is arranged on the left side of the first button 3, a first gas pipe 6 is arranged in the middle of the left end face of the main gas tank 2, four second gas pipes 5 are uniformly distributed around the first gas pipe 6, and the four second gas pipes 5 are thinner than the first gas pipe 6;

the flange clamping device is connected to the tail ends of the four second air pipes 5, and the flanges with different diameters and apertures in a certain range can be clamped by inflating after the positions are adjusted;

aerify detection device, aerify detection device and can ventilate and detect the gas tightness after sealing up different aperture pipelines.

When valve detection is to be performed, the switch of the main gas tank 2 is first opened, so that the interior of the main gas tank 2 is in an inflated state, which is the prior art and is not described herein in detail. The first button 3 is connected with a second air passage 18 which controls the upper part of the first air pipe 6 by a switch, the second button 4 is connected with a third air passage 17 which controls the lower part of the first air pipe 6 by a switch, and the control button and the switch are the prior art. Ventilate through first trachea 6 and four second trachea 7, can make flange clamping device to the valve flange carry out the sealed back of adaptation aperture to ventilate and detect when ventilating the department when valve detects. The clamping of the flange mainly comprises the clamping of a hole on the flange, the hole diameter is small, the clamping needs much less gas than a sealing valve hole, and the pipe diameter of the second gas pipe 5 is smaller than that of the first gas pipe 6.

Flange clamping device includes clamping part, clamping part includes handheld handle 7, 5 ends of every second trachea are located to handheld handle 7, be equipped with third button 28 on the 7 lateral walls of handheld handle, third button 28 left side is equipped with fourth button 29, the end of handheld handle 7 principle second trachea 5 is equipped with square stopper 22, square stopper 22 left end face is equipped with square screens pole 23, square screens pole 23 left end is equipped with cylindrical inflation pole 24, circular inflation pole 24 head outer lane is equipped with gasbag 26, the inside first air duct 88 that runs through to second trachea 5 from circular inflation pole 24 that is equipped with of clamping part, be equipped with first vent 89 on the lateral wall that first air duct 88 and gasbag 26 link to each other. The third button 28 controls the opening of the first venting channel 88 and the fourth button 29 controls the venting when the flange holding device is removed after the device has been used.

The four clamping components are externally provided with a track disc 8, the track disc 8 is provided with four track groups, one clamping component slides in the corresponding track group, the track group comprises a first arc track 31, a second straight track 32 and a third arc track 33, the first arc track 31 and the third arc track 33 are connected at the middle part through the second straight track 32, and the radians of the first arc track 31 and the third arc track 33 are slightly smaller than half pi. When using flange clamping device to carry out the centre gripping to the valve flange, earlier according to the diameter size of flange and the position in hole, will hold handle 7 and pull backward, make cylindrical pole 24 that aerifys slide adjustment position in getting into the track group, generally four holes or eight holes's flange all can be directly through aim at after carrying out position control on the straight track 32 of second, other hole number flanges such as three holes or six holes then need adjust with the help of first circular arc track 31 and third circular arc track 32, final adjustment is for having at least three clamping part can aim at the flange hole. The hand-held handle 7 is inserted into the hole direction after aligning with the flange hole until the square clamping rod 23 has a certain clamping feeling with the rail, and when the square clamping rod is not loosened, the third button 28 is pressed, and the air bag 26 is inflated through the second air pipe 5 through the first air passage 88. The arrangement of the track group can adapt to different flange diameters and hole numbers within a certain range, and the flange of the valve can be well clamped and fixed after at least three non-adjacent holes are clamped through adjustment according to the change of hole positions.

The bottom surface of one end of the air bag 26 facing the square clamping rod 23 is a certain distance away from the circular inflating rod 24, the air bag is folded when being folded, eight magnetic plate groups are arranged in the ground of one end of the air bag 26 facing the square clamping rod 23, each magnetic plate group comprises a first magnetic plate 35 and a second magnetic plate 36, each first magnetic plate 35 and each second magnetic plate 36 attract each other when the air bag 26 is in a folded state, a certain air bag bending belt 39 is arranged between every two magnetic plate groups, and the air bag bending belts 39 are inflated and unfolded along with the air bag 26. Inside gas in first air vent 88 got into gasbag 26 through first vent 89, inflate stretching gasbag 26 diameter direction and horizontal square, gasbag 26 slowly stretches in the inflation process, a plurality of magnetic sheet group of its bottom receive gas pressure bigger and bigger, after gas pressure is greater than the appeal between first magnetic sheet 35 and the second magnetic sheet 36, two magnetic sheet are parted, along with the extension of gasbag 26 horizontal direction is spy down gradually, until the hole periphery material contact with the flange, because the flange material is mostly carbon steel, low alloy steel etc. has ferromagnetism, consequently first magnetic sheet 35 and second magnetic sheet 36 can carry out the magnetism laminating with the flange surface, carry out inseparable laminating with gasbag 26 bottom and flange hole rear surface after eight magnetic sheet group all laminated. Continuing to inflate afterwards, because gasbag 26 bottom has been laminated, gasbag 26 continues to inflate this moment and can make cylindrical gas filling rod 24 drive square screens pole 23 and square stopper 22 and move forward together still, until square stopper 22 ground supports track disc 8 surface, and square stopper 22 and gasbag 26 both clamping force down accomplish the centre gripping with a hole position of flange this moment again. Thereafter, the other three clamping members are operated similarly until the flange is completely clamped. The arrangement of the eight magnetic plate groups in the air bag not only can automatically absorb and retract the air bag 26 by magnetic attraction when the air bag 26 is empty, thereby ensuring that the shape of the air bag is not disordered; it is expanded after aerifing, has guaranteed the comparatively horizontality of gasbag bottom, and skew of traditional gasbag can not appear, and the inhomogeneous condition of inflation shape can also laminate with the flange rear surface, guarantees that follow-up aerifing the back has an effectual clamping-force to the flange, can be better carry out the centre gripping to the flange of the different hole numbers of different diameters and hole position, can also adapt to different flange widths through gasbag 26 automatically, accomplish until the centre gripping.

The diameter of the cylindrical inflating rod 24 is smaller than the width of the track in the track group, the side length of the square clamping rod 23 is slightly smaller than the width of the track in the track group, but the diagonal length is larger than the width of the track in the track group, and an inward inclination angle with a certain angle is formed towards the end of the cylindrical inflating rod 24. The diameter of the cylindrical inflating rod 24 is smaller than the width of the track, so that the position of the cylindrical inflating rod can be adjusted in the track in a sliding mode, the square clamping rod 23 is used for preliminarily limiting the position of the clamping part after being aligned with the flange hole, subsequent operation is facilitated, and the cylindrical inflating rod is used for being pulled out and inserted into the track more conveniently when being designed with a certain inclination angle.

Aerify detection device is including establishing the second air passage 18 in the inside top of first trachea 6, 18 lower parts of second air passage still are equipped with third air passage 17, 6 output of first trachea even have the shell 9 of ventilating, the shell 9 of ventilating runs through track disc 8 from the middle part, the inside fourth air passage 20 that link up from top to bottom that is equipped with of shell 9 of ventilating, the opening of fourth air passage 20 left side links to each other with second air passage 18, the shell 9 middle part of ventilating is equipped with middle part air passage 16, middle part air passage 16 is towards the right side opening, shell 9 right side edge of ventilating is equipped with second gasbag 14, it is equipped with two second air passages 15 to ventilate between shell 9 and the second gasbag. The shell 9 that will ventilate inserts to valve hole department, presses down first button 3, and second air passage 18 ventilates in to fourth air passage 20, finally lets in to 14 insides of second gasbag through two second air ports 15, and the second gasbag 14 is aerifyd the inflation back and is carried out the shutoff with valve hole department vacant space and seal, and the shutoff seals up the back that finishes, presses fourth button 4, ventilates in to third air passage 17, and inside the 16 admission valves of middle part air passage, carry out valve gas tightness and detect. The air inlet of the valve is completely blocked and then detected, the detected data are more accurate, other detections such as air tightness detection under different degrees of pressure of the valve can be carried out after sealing, and if the valve cannot be sealed, the detections cannot be carried out. After the detection is finished, the main air box 2 is closed, no air is filled in the second air passage 18, air in the second air bag 14 flows back, and the device is reset.

The left side of the ground of the body shell 1 is provided with a valve mounting seat 10, the left end face inside the body shell 1 is provided with a plugging disc 11, and the central part of the plugging disc 11 is provided with an airflow detector 12. When detection is carried out, the other end of the valve is covered on the plugging disc and the airflow detector 12 through a flange, the clamped track disc 8 is pressed forwards and leans against the valve mounting seat 10. And starting ventilation detection, wherein the airflow detector 12 is in the prior art, can reflect and collect the detected airflow through the condition, and sequentially judges the air tightness of the valve.

Claims

1. A valve airtightness detection device comprises a machine body shell (1), wherein a main gas box (2) is arranged inside the right side of the machine body shell (1), a gas source and a control center are arranged inside the main gas box (2), and the valve airtightness detection device is characterized in that a first button (3) is arranged on the rear side of the upper end face of the main gas box, a second button (4) is arranged on the left side of the first button (3), a first gas pipe (6) is arranged in the middle of the left end face of the main gas box (2), four second gas pipes (5) are uniformly distributed around the first gas pipe (6), and the four second gas pipes (5) are thinner than the first gas pipe (6);

the flange clamping devices are connected to the tail ends of the four second air pipes (5), and the flanges with different diameters and apertures in a certain range can be clamped by inflating after the positions are adjusted;

2. The valve airtightness detection device according to claim 1, wherein the flange clamping device comprises a clamping member, the clamping member comprises a handheld handle (7), the handheld handle (7) is disposed at the end of each second air tube (5), a third button (28) is disposed on the side wall of the handheld handle (7), a fourth button (29) is disposed on the left side of the third button (28), a square limiting block (22) is disposed at the end of each second air tube (5) based on the principle of the handheld handle (7), a square clamping rod (23) is disposed on the left end surface of the square limiting block (22), the square clamping rod (23) is provided with a cylindrical inflation rod (24) at the left end of the square clamping rod (23), an air bag (26) is disposed on the outer ring of the head of the circular inflation rod (24), and a first air duct (88) penetrating from the circular inflation rod (24) to the second air tube (5) is disposed inside the clamping member, and a first vent hole (89) is formed in the side wall of the first air passage (88) connected with the air bag (26).

3. The valve airtightness detection device according to claim 2, wherein a track disc (8) is arranged outside the four clamping members, four track groups are arranged on the track disc (8), one clamping member slides in the corresponding track group, each track group comprises a first circular arc track (31), a second straight track (32) and a third circular arc track (33), the first circular arc track (31) and the third circular arc track (33) are connected in the middle through the second straight track (32), and the radians of the first circular arc track (31) and the third circular arc track (33) are slightly smaller than half pi.

4. The valve tightness detecting device according to claim 2, wherein the bottom surface of the end of the air bag (26) facing the square clamping rod (23) is at a certain distance from the circular inflating rod (24), and when the air bag is folded, eight magnetic plate sets are arranged in the ground of the end of the air bag (26) facing the square clamping rod (23), each magnetic plate set comprises a first magnetic plate (35) and a second magnetic plate (36), each first magnetic plate (35) and each second magnetic plate (36) attract each other when the air bag (26) is folded, a certain air bag bending strap (39) is arranged between every two magnetic plate sets, and the air bag bending strap (39) is unfolded along with the air bag (26).

5. The device for detecting the airtightness of the valve according to any one of claims 2 or 3, wherein the diameter of the cylindrical inflating rod (24) is smaller than the width of the track in the track set, the side length of the square capture rod (23) is slightly smaller than the width of the track in the track set, but the diagonal length is larger than the width of the track in the track set, and the end of the cylindrical inflating rod (24) has an inward inclination angle of a certain angle.

6. A valve tightness detection device according to claim 1, characterized in that said inflation detection device comprises a second venting channel (18) arranged above the interior of the first air tube (6), the lower part of the second air vent passage (18) is also provided with a third air vent passage (17), the output end of the first air pipe (6) is connected with an air vent shell (9), the ventilation shell (9) penetrates through the track disc (8) from the middle part, a fourth ventilation channel (20) which penetrates up and down is arranged in the ventilation shell (9), the left opening of the fourth vent passage (20) is connected with the second vent passage (18), a middle air duct (16) is arranged in the middle of the ventilation shell (9), the middle air duct (16) is opened towards the right side, a second air bag (14) is arranged at the right side edge of the ventilation shell (9), and two second ventilation ports (15) are arranged between the ventilation shell (9) and the second air bag.

7. The valve airtightness detection device according to claim 1, wherein a valve mounting seat (10) is arranged on the left side of the ground of the machine body shell (1), a blocking disc (11) is arranged on the left end face inside the machine body shell (1), and an airflow detector (12) is arranged in the central part of the blocking disc (11).