Detection device of exhaust valve

Abstract

The invention provides a detection device of an exhaust valve, and belongs to the technical field of detection devices. The exhaust valve detection device solves the problem that an existing detection device is poor in exhaust valve detection practicability. The exhaust valve detection device comprises a water tank, a lifting cylinder and a mounting seat are mounted in the water tank, the lifting cylinder can drive the mounting seat to move vertically, a rotating cylinder is mounted on the side wall of the mounting seat, a rotating base is rotatably connected in the mounting seat, and an output shaft of the rotating cylinder is fixedly connected with the rotating base and drives the rotating base to turn up and down. A plurality of bottom plates on which exhaust valves can be placed are arranged on the rotating base, air pipe joints which can be communicated with the exhaust valves located on the bottom plates are arranged on the bottom plates, the bottom of the rotating base is connected with a pressing air cylinder, a piston rod of the pressing air cylinder is connected with a pressing plate arranged over the bottom plates, and the pressing air cylinder can drive the pressing plate to move up and down. The detection device of the exhaust valve can rapidly realize detection of the exhaust performance and the air tightness of the exhaust valve, and the practicability of the detection device is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection devices, and relates to a detection device for an exhaust valve. BACKGROUND

[0002] The exhaust valve is applied to pipeline exhaust of independent heating systems, central heating systems, heating boilers, central air conditioners, floor heating and solar heating systems. The principle of the exhaust valve is that when gas overflows in the system, the gas will flow upwards along the pipeline and finally gather at the highest point of the system, and the exhaust valve is generally installed at the highest point of the system. When the gas enters the valve cavity of the exhaust valve and gathers at the upper part of the exhaust valve, the pressure rises with the increase of the gas in the valve. When the gas pressure is greater than the system pressure, the gas will cause the water level in the cavity to drop, and the float will also drop with the water level to open the exhaust port. After the gas is exhausted, the water level rises, and the float also rises to close the exhaust port.

[0003] Therefore, the exhaust valve needs to be detected by a detection device before use. Generally, the exhaust performance and air pressure sealing performance of the exhaust valve need to be detected. However, the existing exhaust valve detection device, such as the new valve detection device disclosed in Chinese Patent Application

Grant Announcement No. CN218211840U

[0004] The above structure sets the valve in the water tank. The telescopic sleeve and the first telescopic column are lengthened according to the actual length of the valve. The sealing ring and the connecting head are driven by the first telescopic column and the second telescopic column to seal the valve. The vacuum pump is used to extract vacuum from the valve through the hose and the air extraction pipe. Whether the vacuum pressure gauge can reach the standard value is observed to realize the detection of the valve. However, only the air tightness of the valve can be detected. In addition to the air tightness detection, the existing valve also needs to be detected for exhaust effect. Other detections of the valve cannot be realized. Only the air tightness detection can be provided, which reduces the practicability of the detection device. SUMMARY

[0005] The present application aims at the above-mentioned problems existing in the prior art, and provides a detection device for an exhaust valve.

[0006] The object of the present application can be achieved by the following technical solutions:

[0007] The detection device for the exhaust valve comprises a water tank, a lifting cylinder and a mounting seat are installed in the water tank, the lifting cylinder can drive the mounting seat to move vertically, characterized in that a rotary cylinder is installed on the side wall of the mounting seat, a rotary base is rotatably connected in the mounting seat, the output shaft of the rotary cylinder is fixedly connected with the rotary base and drives the rotary base to flip up and down, a plurality of bottom plates on which the exhaust valve can be placed are arranged on the rotary base, a gas pipe joint which can communicate with the exhaust valve placed on the bottom plate is arranged on the bottom plate, a pressing cylinder is connected to the bottom of the rotary base, a pressing plate arranged directly above the bottom plate is connected to the piston rod of the pressing cylinder, and the pressing cylinder can drive the pressing plate to move up and down.

[0008] When exhaust test is needed, the exhaust valve is placed on the bottom plate, the lower end of the exhaust valve is communicated with the gas pipe joint, the exhaust valve is pressed on the bottom plate by the pressing plate driven by the pressing cylinder, water is filled in the water tank, the lifting cylinder is directly driven to drive the mounting seat to move downward to press the bottom plate below the water surface in the water tank, the bottom plate is arranged close to the water surface, compressed air is introduced into the exhaust valve on the bottom plate from the gas pipe joint, the pressure of the compressed air is slowly increased, and whether air is continuously discharged from the exhaust port of the exhaust valve is observed, so that the exhaust test of the exhaust valve is realized; when air tightness test is needed, the introduction of compressed gas is stopped, the rotary base is flipped by 180 degrees up and down by the rotary cylinder, at this time, the exhaust valve on the rotary base is placed upside down, and the exhaust port of the exhaust valve is located in the water, at this time, the float in the exhaust valve also moves downward to block the exhaust port of the exhaust valve with the upside-down placement, the compressed gas is introduced into the exhaust valve from the gas pipe joint, and whether bubbles are emitted from the exhaust port of the exhaust valve is observed, if not, the air tightness is qualified, and if yes, the air tightness is unqualified.

[0009] Since the exhaust valve needs to be subjected to exhaust test and air tightness test, the exhaust port of the exhaust valve is located below the water surface in the water tank, whether bubbles are emitted from the exhaust port is observed to observe the exhaust performance and the air tightness, the detection is realized by setting the exhaust valve in the normal direction and upside down, and the air tightness test is directly realized by upside-down placement of the exhaust valve, so that the float in the exhaust valve falls downward under its own gravity and blocks the exhaust port of the exhaust valve, thereby the air tightness test can be performed, and the cooperation of the rotary cylinder, the lifting cylinder and the pressing cylinder realizes the installation of the exhaust valve, the lifting and the flipping of the exhaust valve after installation, so that the detection device can quickly realize the detection of the exhaust performance and the air tightness of the exhaust valve, and the practicability of the detection device is improved.

[0010] In the above exhaust valve detection device, the bottom plate is provided with a limiting groove for embedding the lower end of the exhaust valve, and the gas pipe joint is communicated with the limiting groove.

[0011] The limiting groove is arranged to stably arrange the lower end of the exhaust valve in the limiting groove of the bottom plate, and the gas pipe joint can stably guide the compressed gas into the exhaust valve through the limiting groove, thereby realizing stable detection.

[0012] In the above exhaust valve detection device, one end of the pressing plate is provided with a U-shaped pressing part, and the two fork arms of the pressing part can be located on the front and back sides of the upper end surface of the exhaust valve on the corresponding bottom plate.

[0013] Since the exhaust valve needs to be continuously supplied with compressed gas during the experiment, the exhaust valve will produce a slight upward displacement after being supplied with gas. The shape of the pressing part has a hollow groove, so that when the exhaust valve has a tendency to move upward, the pressing part will not move upward with the exhaust valve as a whole, but will adaptively fit on the upper end of the exhaust valve, thereby ensuring that the exhaust valve can stably perform the experiment and preventing the lower end of the exhaust valve from leaking during the experiment, thereby improving the stability of the detection device experiment.

[0014] In the above exhaust valve detection device, the left and right ends of the pressing plate are provided with the above pressing parts, a limiting rod is fixedly connected to the rotating base, the pressing plate is in the shape of a Chinese character KU, a limiting hole is formed in the middle of the pressing plate for inserting the limiting rod, and the limiting rod slides relative to the hole wall of the limiting hole when the pressing plate moves vertically.

[0015] Since the pressing plate simultaneously presses and positions the upper ends of the two exhaust valves, the pressing plate is subjected to a large pressing force on both sides during pressing. In order to ensure that the pressing plate can stably press on the corresponding two exhaust valves, the pressing plate is designed in the shape of a Chinese character KU, and is matched with the limiting rod and the limiting hole to guide the middle part of the pressing plate, thereby avoiding vertical displacement deviation of the pressing plate and avoiding inclination in the upward and downward directions, so that the pressing effect is better, and the upper ends of the two exhaust valves are simultaneously pressed, so that the two exhaust valves can balance each other. When one of the exhaust valves has a tendency to move upward, the other end of the pressing plate swings downward to press the other exhaust valve, so that a reaction force acts on the pressing plate under the resistance of the other exhaust valve, thereby enhancing the pressing effect of the pressing plate.

[0016] In the above exhaust valve detection device, the piston rod is located between the two bottom plates, and the limiting rod is located on the front side or the rear side of the piston rod.

[0017] The cooperation of the piston rod and the limiting rod further avoids large displacement deviation of the pressing plate during vertical pressing, thereby ensuring stable positioning of the exhaust valve.

[0018] In the above-described exhaust valve detection device, the rotating base comprises a mounting plate to which the bottom plate is connected, two ends of the mounting plate are formed into rotating plates along vertical protrusions towards the pressing plate, the mounting base comprises two support plates arranged opposite to each other, one of the support plates is provided with a rotating cylinder, and the other support plate is provided with a rotating disc which is rotationally connected with one of the rotating plates.

[0019] Since the exhaust valve is mounted on the bottom plate, the center of gravity of the entire rotating base is located at the vertical middle part of the exhaust valve, and the rotating disc is arranged close to the middle part of the exhaust valve, so that the rotating base can be stably turned up and down, thereby improving the stability during detection.

[0020] In the above-described exhaust valve detection device, the mounting base comprises a clearance plate, the clearance plate is located below the mounting plate, and clearance gaps are formed between the clearance plate and the pressing cylinder or the pressing plate.

[0021] The clearance gaps are arranged to prevent the rotating base from being in contact with the clearance plate during rotation, and the clearance plate can stably support the rotating base.

[0022] In the above-described exhaust valve detection device, a plurality of guide rods are arranged in the water tank, guide holes corresponding to the guide rods are formed in the clearance plate, and the clearance plate can be vertically slid along the guide rods.

[0023] The cooperation of the guide rods and the clearance plate makes the lifting cylinder drive the clearance plate to move up and down more stably.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] 1. The exhaust valve is detected in a forward direction and inverted, and the air tightness detection is directly inverted to make the float in the exhaust valve fall downward under its own gravity and block the exhaust port of the exhaust valve, so that the air tightness experiment can be performed. The cooperation of the rotating cylinder, the lifting cylinder and the pressing cylinder realizes the mounting, lifting and turning of the exhaust valve, so that the detection device can quickly detect the exhaust performance and air tightness of the exhaust valve, and the practicality of the detection device is improved.

[0026] 2. During the experiment, compressed gas needs to be continuously introduced into the exhaust valve. This gas introduction will cause a slight upward displacement. The shape of the clamping part, which has a hollow groove, ensures that when the exhaust valve tends to push upward, the clamping part will not move upward with the exhaust valve as a whole. Instead, it will adaptively fit against the upper end of the exhaust valve as it moves, thus ensuring that the exhaust valve can conduct the experiment stably and preventing air leakage at the lower end, thereby improving the stability of the testing device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure in the initial state of the present invention.

[0028] Figure 2 This is a partial structural diagram of the initial state of the present invention.

[0029] Figure 3 This is a partial structural schematic diagram of the present invention.

[0030] Figure 4 This is a partial structural diagram of the rotating base after it has been flipped in this invention.

[0031] In the diagram, 1 is the water tank; 11 is the guide rod; 2 is the lifting cylinder; 3 is the mounting base; 31 is the support plate; 32 is the rotating disk; 33 is the clearance plate; 33a is the guide hole; 4 is the rotating cylinder; 5 is the rotating base; 51 is the base plate; 51a is the air pipe connector; 51b is the limiting groove; 52 is the limiting rod; 53 is the mounting plate; 54 is the rotating plate; 6 is the clamping cylinder; 61 is the piston rod; 7 is the clamping plate; 71 is the clamping part; 71a is the fork arm; 72 is the limiting hole; 8 is the clearance gap; 9 is the exhaust valve; and 91 is the exhaust port. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] like Figure 1 As shown, the detection device for this exhaust valve includes a water tank 1, in which a lifting cylinder 2 and a mounting base 3 are installed. The lifting cylinder 2 can drive the mounting base 3 to move vertically.

[0034] Specifically, such as Figures 1-3As shown, the side wall of the mounting seat 3 is provided with a rotary cylinder 4, the mounting seat 3 is rotationally connected with a rotary base 5, the output shaft of the rotary cylinder 4 is fixedly connected with the rotary base 5 and drives the rotary base 5 to flip up and down, the rotary base 5 is provided with a plurality of bottom plates 51 on which the exhaust valves 9 are placed, the bottom plate 51 is provided with a gas pipe joint 51a which is in communication with the exhaust valve 9 on the bottom plate 51, the bottom of the rotary base 5 is connected with a pressing cylinder 6, the piston rod 61 of the pressing cylinder 6 is connected with a pressing plate 7 which is arranged directly above the bottom plate 51, and the pressing cylinder 6 can drive the pressing plate 7 to move up and down.

[0035] When the exhaust test is needed, the exhaust valve 9 is placed on the bottom plate 51, the lower end of the exhaust valve 9 is in communication with the gas pipe joint 51a, the exhaust valve 9 is pressed on the bottom plate 51 by the pressing plate 7 driven by the pressing cylinder 6, water is filled in the water tank 1, the mounting seat 3 is driven by the lifting cylinder 2 to move downward to press the pressing plate 7 below the water surface of the water tank 1, the pressing plate is arranged close to the water surface, compressed air is introduced into the exhaust valve 9 on the bottom plate 51 from the gas pipe joint 51a, and the pressure of the compressed air is slowly increased, whether air is continuously discharged at the exhaust port 91 of the exhaust valve 9 is observed, so that the exhaust test of the exhaust valve 9 is realized; when the air tightness test is needed, the introduction of compressed gas is stopped, the rotary base 5 is flipped 180 degrees up and down by the rotary cylinder 4, at this time the exhaust valve 9 is placed upside down on the rotary base 5, and the exhaust port 91 of the exhaust valve 9 is located in the water, at this time the float of the exhaust valve 9 also moves downward to block the exhaust port 91 of the exhaust valve 9 with the upside down placement, the compressed gas is introduced into the exhaust valve 9 from the gas pipe joint 51a, whether bubbles are emitted at the exhaust port 91 of the exhaust valve 9 is observed, if not, the air tightness is qualified, if yes, the air tightness is unqualified.

[0036] Since the exhaust valve 9 needs to be tested for exhaust and air tightness, the exhaust port 91 of the exhaust valve 9 is located below the water surface of the water tank 1, whether bubbles are observed at the exhaust port 91 is observed to observe the exhaust and air tightness, the detection is realized by setting the exhaust valve 9 in the normal direction and upside down, and the air tightness detection is directly realized by upside down of the exhaust valve 9, so that the float in the exhaust valve 9 falls downward under its own gravity and blocks the exhaust port 91 of the exhaust valve 9, so that the air tightness test can be performed, and the cooperation of the above rotary cylinder 4, lifting cylinder 2 and pressing cylinder 6 realizes the installation of the exhaust valve 9, the lifting and flipping up and down after installation, so that the detection device can quickly realize the detection of the exhaust and air tightness of the exhaust valve 9, and the practicability of the detection device is improved.

[0037] As shown in the figure, Figure 3 The bottom plate 51 is provided with a limiting groove 51b in which the lower end of the exhaust valve 9 is embedded, and the gas pipe joint 51a is in communication with the limiting groove 51b.

[0038] As shown in the figure, Figures 2-4As shown in the figure, one end of the pressing plate 7 has a U-shaped pressing part 71, two prongs 71a of the pressing part 71 can be located on the front and back of the upper end surface of the exhaust valve 9 on the corresponding bottom plate 51, the left and right ends of the pressing plate 7 are both provided with the above-mentioned pressing part 71, the rotating base 5 is fixedly connected with a limiting rod 52, the pressing plate 7 is in the shape of a Chinese character "K", the middle part of the pressing plate 7 is provided with a limiting hole 72 for inserting the limiting rod 52, the limiting rod 52 slides relative to the hole wall of the limiting hole 72 when the pressing plate 7 moves vertically, and the piston rod 61 is located between the two bottom plates 51, and the limiting rod 52 is located on the front side or the rear side of the piston rod 61.

[0039] As shown in the figure, Figure 2 and Figure 4 The rotating base 5 includes a mounting plate 53 for connecting the bottom plate 51, the two ends of the mounting plate 53 are vertically protruded towards the pressing plate 7 to form rotating plates 54, the mounting base 3 includes two support plates 31 arranged in a transverse direction, one of the support plates 31 is for mounting the rotating cylinder 4, and the other support plate 31 is provided with a rotating disc 32, and the rotating disc 32 is rotationally connected with one of the rotating plates 54.

[0040] As shown in the figure, Figure 2 and Figure 4 The mounting base 3 includes a let-in plate 33, the let-in plate 33 is located below the mounting plate 53, and the let-in plate 33 has a let-in gap 8 between the pressing cylinder 6 or the pressing plate 7, a plurality of guide rods 11 are arranged in the water tank 1, the let-in plate 33 is provided with guide holes 33a corresponding to the guide rods 11, and the let-in plate 33 can vertically slide along the guide rods 11.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. An exhaust valve detection device, comprising a water tank (1), a lifting cylinder (2) and a mounting seat (3) are installed in the water tank (1), the lifting cylinder (2) can drive the mounting seat (3) to move vertically, characterized in that, The side wall of the mounting base (3) is provided with a rotary cylinder (4), the mounting base (3) is rotationally connected with a rotary base (5), the output shaft of the rotary cylinder (4) is fixedly connected with the rotary base (5) and drives the rotary base (5) to flip up and down, a plurality of bottom plates (51) for placing exhaust valves (9) are arranged on the rotary base (5), the bottom plate (51) is provided with a gas pipe joint (51a) capable of communicating with the exhaust valve (9) on the bottom plate (51), the bottom of the rotary base (5) is connected with a pressing cylinder (6), the piston rod (61) of the pressing cylinder (6) is connected with a pressing plate (7) arranged directly above the bottom plate (51), and the pressing cylinder (6) can drive the pressing plate (7) to move up and down.

2. The exhaust valve detection device according to claim 1, characterized by The bottom plate (51) is provided with a limiting groove (51b) for embedding the lower end of the exhaust valve (9), and the gas pipe joint (51a) communicates with the limiting groove (51b).

3. The exhaust valve detection device according to claim 1 or 2, characterized by One end of the pressing plate (7) has a U-shaped pressing portion (71), and the two fork arms (71a) of the pressing portion (71) can be located on the front and back sides of the upper end surface of the exhaust valve (9) on the corresponding bottom plate (51).

4. The exhaust valve inspection apparatus according to claim 3, characterized by Both left and right ends of the pressing plate (7) have the above-mentioned pressing portion (71), the rotary base (5) is fixedly connected with a limiting rod (52), the pressing plate (7) is in the shape of a Chinese character "K", a limiting hole (72) for inserting the limiting rod (52) is arranged in the middle part of the pressing plate (7), and the limiting rod (52) slides relative to the hole wall of the limiting hole (72) when the pressing plate (7) moves vertically.

5. The exhaust valve inspection apparatus according to claim 4, characterized by The piston rod (61) is located between the two bottom plates (51), and the limiting rod (52) is located on the front side or the rear side of the piston rod (61).

6. The exhaust valve inspection apparatus according to claim 1 or 2, characterized by The rotary base (5) comprises a mounting plate (53) for connecting the bottom plate (51), the two ends of the mounting plate (53) are vertically protruded towards the pressing plate (7) to form a rotating plate (54), the mounting base (3) comprises two support plates (31) arranged transversely opposite to each other, one of the support plates (31) is provided for mounting the rotary cylinder (4), the other support plate (31) is provided with a rotating disc (32), and the rotating disc (32) is rotationally connected with one of the rotating plates (54).

7. The exhaust valve inspection apparatus according to claim 6, characterized by The mounting base (3) comprises a giving-in plate (33), the giving-in plate (33) is located below the mounting plate (53), and the giving-in plate (33) has a giving-in gap (8) between the pressing cylinder (6) or the pressing plate (7).

8. The exhaust valve inspection apparatus according to claim 7, characterized by A plurality of guide rods (11) are arranged in the water tank (1), the giving-in plate (33) is provided with guide holes (33a) corresponding to the guide rods (11) one by one, and the giving-in plate (33) can vertically slide along the guide rods (11).

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