A foam spraying device for air tightness leak hunting

Abstract

The utility model provides a kind of foaming spraying device for air tightness leak detection, belong to the technical field of air tightness leak detection, including adjusting component, including stirring tank, the sidewall of stirring tank is equipped with foam pump, the surface of foam pump is fixedly connected with first bellow, the upper end of first bellow is fixedly connected with external connection frame, the surface of external connection frame is slidably connected with first spraying frame, the surface of first spraying frame is equipped with adjusting assembly, the surface of adjusting assembly is equipped with reset assembly, second bellow is connected between first spraying frame and first bellow;Auxiliary component, including the driving plate of sliding connection on the surface of adjusting assembly.The utility model can realize the quick adjustment of the spraying position and angle of second spraying frame by adjusting component, using telescopic tube and second spraying frame cooperation screw rod, facilitate the spraying device to adapt to different models of flange, reach the effect of convenient detection, increase the practicability of foaming spraying device.

Description

Technical Field

[0001] This utility model belongs to the technical field of airtightness leak detection, specifically relating to a foam spraying device for airtightness leak detection. Background Technology

[0002] In recent years, safety flanges have been commonly used to connect the internal parts of mobile pressure vessels. When testing the airtightness of the flange connection, a mixing tank and a foam pump can be used in conjunction with a bellows-connected arc sprayer to spray foam onto the flange testing location. If there are vent holes at the flange location, the foam sprayed on the surface will bubble.

[0003] Currently, when using an arc-shaped sprayer to spray foam onto the flange surface, its fixed shape limits its applicability to leak testing only on flanges of the same model. Furthermore, when testing different models of connecting flanges, the sprayer needs to be replaced, making the operation complex. Utility Model Content

[0004] The purpose of this invention is to provide a foam spraying device for airtightness testing, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A foam spraying device for airtightness leak testing includes an adjusting component, a mixing tank, a foam pump mounted on the side wall of the mixing tank, a first corrugated pipe fixedly connected to the surface of the foam pump, an external frame fixedly connected to the upper end of the first corrugated pipe, a first spraying frame slidably connected to the surface of the external frame, an adjusting component on the surface of the first spraying frame, a resetting component on the surface of the adjusting component, and a second corrugated pipe connected between the first spraying frame and the first corrugated pipe; an auxiliary component includes a drive plate slidably connected to the surface of the adjusting component, a reset component and a pulling component between the drive plate and the adjusting component, and a power component between the pulling component, the external frame, and the first spraying frame.

[0006] As a preferred embodiment of this utility model, the adjustment assembly includes a telescopic tube fixedly connected to one side of the first spray frame, a second spray frame fixedly connected to the side of the telescopic tube away from the first spray frame, an outer plate fixedly connected to the outer surface of the first spray frame, a square plate slidably connected to the inner wall of the outer plate, a screw threadedly connected to the surface of the square plate, and one end of the screw rotatably connected to the outer surface of the second spray frame.

[0007] In a preferred embodiment of this utility model, the reset assembly includes a round rod fixedly connected inside the outer plate, the round rod penetrating the square plate, and a spring sleeved on the surface of the round rod, with the two ends of the spring fixedly connected to one side of the square plate and the inner wall of the outer plate, respectively.

[0008] In a preferred embodiment of this utility model, the extension length of the telescopic tube is adapted to the length of the inner wall groove of the outer plate, and the telescopic tube is arc-shaped.

[0009] In a preferred embodiment of this utility model, the restoration component includes two inclined blocks that are slidably connected to the surface of the outer plate, the driving plate is slidably connected to the outer plate, and a rotating plate is rotatably connected to the surface of the outer plate. The two ends of the rotating plate are respectively rotatably connected to the driving plate and the inclined blocks.

[0010] In a preferred embodiment of this utility model, the pulling assembly includes an outer plate fixedly connected to the outside of the drive plate, guide rods fixedly connected to both sides of the outer plate, the outer plate being slidably connected to the guide rods, and a series plate fixedly connected to the lower side of the outer plate.

[0011] In a preferred embodiment of this utility model, the power assembly includes a plurality of ladder blocks slidably connected to the outer surface of the first spray frame. The ladder blocks are divided into two groups of half and fixedly connected to a series plate. Two extension plates are fixedly connected to the surface of the outer frame. A gear is rotatably connected to one side of the two extension plates that is close to each other. The gear is in the shape of an "I". A rotating rod is rotatably connected to the surface of each of the two extension plates. The rotating rod is fixedly connected to the side of the gear. The outer end of the rotating rod is in the shape of an "I". A torsion spring is sleeved on the surface of the rotating rod. The two ends of the torsion spring are fixedly connected to the rotating rod and the extension plate, respectively. A pull rope is wound around the outer end of the rotating rod. A pull plate is slidably connected to the surface of the outer frame. One end of the pull rope is fixedly connected to the pull plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By adjusting the components, the spraying position and angle of the second spraying frame can be quickly adjusted by using the telescopic tube and the screw of the second spraying frame. This makes it easier for the spraying device to adapt to different types of flanges, achieves convenient testing, and increases the practicality of the foam spraying device. 2. Through auxiliary components, the drive plate and the pulling assembly can engage the teeth of the ladder block and the gear. When the operator pulls the pull plate outward, it can drive the first spray frame and the second spray frame to adjust their position along the arc surface of the outer frame. This facilitates the operator's spraying of foam on the flange surface and further increases the smoothness of the side leakage detection work. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the spray head in this utility model; Figure 3 In this utility model Figure 2 A magnified structural diagram at point A; Figure 4 In this utility model Figure 2 A magnified structural diagram at point B.

[0014] In the diagram: 10. Mixing tank; 11. Foam pump; 12. First corrugated pipe; 13. External frame; 14. First spray frame; 15. Adjustment component; 151. Telescopic pipe; 152. Second spray frame; 153. External plate; 154. Square plate; 155. Screw; 16. Reset component; 161. Round rod; 162. Spring; 17. Second corrugated pipe; 20. Drive plate; 21. Restoration component; 211. Inclined block; 212. Rotating plate; 22. Pulling component; 221. External plate; 222. Guide rod; 223. Connecting plate; 23. Power component; 231. Ladder block; 232. Extension plate; 233. Gear; 234. Rotating rod; 235. Torsion spring; 236. Pull rope; 237. Pull plate. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Example 1 Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a foam spraying device for airtightness leak testing, including an adjusting component, including a mixing tank 10, a foam pump 11 installed on the side wall of the mixing tank 10, a first corrugated pipe 12 fixedly connected to the surface of the foam pump 11, an external frame 13 fixedly connected to the upper end of the first corrugated pipe 12, a first spraying frame 14 slidably connected to the surface of the external frame 13, an adjusting component 15 provided on the surface of the first spraying frame 14, a resetting component 16 provided on the surface of the adjusting component 15, and a second corrugated pipe 17 connected between the first spraying frame 14 and the first corrugated pipe 12.

[0017] The adjusting component 15 can be used in conjunction with the first spray frame 14 to adjust the equipment to fit the flange size, and then the mixing tank 10 and foam pump 11 can be started to spray foam from the nozzle to the flange position for side leakage detection.

[0018] Furthermore, the adjusting assembly 15 includes a telescopic tube 151 fixedly connected to one side of the first spray frame 14, a second spray frame 152 fixedly connected to the side of the telescopic tube 151 away from the first spray frame 14, an outer plate 153 fixedly connected to the outer surface of the first spray frame 14, a square plate 154 slidably connected to the inner wall of the outer plate 153, a screw 155 threadedly connected to the surface of the square plate 154, and one end of the screw 155 rotatably connected to the outer surface of the second spray frame 152. The resetting assembly 16 includes a round rod 161 fixedly connected inside the outer plate 153, the round rod 161 penetrating the square plate 154, a spring 162 sleeved on the surface of the round rod 161, and both ends of the spring 162 fixedly connected to one side of the square plate 154 and the inner wall of the outer plate 153, respectively.

[0019] The first sprayer 14 is placed on the surface of the flange, and then the second sprayer 152 is pressed. At this time, the telescopic tube 151 and the square plate 154 will automatically adapt to the curvature of the flange and help the second sprayer 152 fit the flange. The operator can further rotate the screw 155 to drive the second sprayer 152 to adjust the angle and improve the tightness of the fit of the second sprayer 152.

[0020] Preferably, the extension length of the telescopic tube 151 is adapted to the length of the inner wall groove of the outer plate 153, and the telescopic tube 151 is arc-shaped.

[0021] It should be noted that the length of the groove of the outer plate 153 limits the extension length of the telescopic tube 151, so that the telescopic tube 151 will not open too much and break, thus facilitating the long-term extension and use of the telescopic tube 151.

[0022] In use, the foam-making material is placed inside the mixing tank 10. By starting the mixing tank 10 and the foam pump 11, the foam is transported through the first bellows 12 to the positions of the first spray frame 14 and the second spray frame 152, and then sprayed out through the nozzles. Since mobile pressure vessels typically have different sizes, they require flanges of different sizes for connection. The foam can be used for side-leakage airtightness testing. During testing, the operator can place the first spray frame 14 against the flange surface and then flip the second spray frame 152 towards the flange. The telescopic pipe 151 and the square plate 154 automatically adapt to the flange size as the second spray frame 152 contacts the flange. The operator can rotate the screw 155, causing it to lift one end of the second spray frame 152. This allows the second spray frame 152 to fit more closely to the flange surface, improving the foam spraying effect and preventing the foam from being sprayed too far and failing to reach the gap, thus affecting the side leakage detection effect. After the foam spraying is completed, the operator can move the first spray frame 14 and the second spray frame 152 away from the flange. At this time, the spring 162 drives the square plate 154, causing the telescopic tube 151 to return to its initial position. Simultaneously, rotating the screw 155 in the opposite direction can restore the first spray frame 14 and the second spray frame 152 to their arc shape, making it easy to adapt to the next flange of a different model and spray foam again.

[0023] Example 2 Reference Figures 1-4 This is the second embodiment of the present utility model. Unlike the previous embodiment, this embodiment provides an auxiliary component, including a drive plate 20 that is slidably connected to the surface of the adjustment component 15. A restoration component 21 and a pulling component 22 are provided between the drive plate 20 and the adjustment component 15. A power component 23 is provided between the pulling component 22 and the external frame 13 and the first spray frame 14. The recovery assembly 21 includes two inclined blocks 211 slidably connected to the surface of the outer plate 153. The drive plate 20 is slidably connected to the outer plate 153. A rotating plate 212 is rotatably connected to the surface of the outer plate 153, and both ends of the rotating plate 212 are rotatably connected to the drive plate 20 and the inclined blocks 211, respectively. The pulling assembly 22 includes an outer plate 221 fixedly connected to the outside of the drive plate 20. Guide rods 222 are fixedly connected to both sides of the outer plate 153. The outer plate 221 is slidably connected to the guide rods 222. A series plate 223 is fixedly connected to the lower side of the outer plate 221. The power assembly 23 includes several step blocks 231 slidably connected to the outer surface of the first spray frame 14. The step blocks 231 are divided into two groups of half and are fixedly connected to the connecting plate 223. Two extension plates 232 are fixedly connected to the surface of the outer frame 13. A gear 233 is rotatably connected to the side of the two extension plates 232 that is close to each other. The gear 233 is in the shape of an "I". Rotating rods 234 are rotatably connected to the surfaces of the two extension plates 232. The rotating rods 234 are fixedly connected to the sides of the gears 233. The outer end of the rotating rods 234 is in the shape of an "I". A torsion spring 235 is sleeved on the surface of the rotating rods 234. The two ends of the torsion spring 235 are fixedly connected to the rotating rods 234 and the extension plates 232, respectively. A pull rope 236 is wound around the outer end of the rotating rods 234. A pull plate 237 is slidably connected to the surface of the outer frame 13. One end of the pull rope 236 is fixedly connected to the pull plate 237.

[0024] Specifically, when the adjustment component 15 is activated, it will press against the drive plate 20. At this time, in conjunction with the pulling component 22, it can drive multiple step blocks 231 to slide to the position where they mesh with the teeth of the gear 233. This allows the operator to switch the spraying positions of the first spray frame 14 and the second spray frame 152 simply by pulling the pull plate 237. Large-area foam spraying can be completed without manually adjusting the positions of the first spray frame 14 and the second spray frame 152.

[0025] In use, when adjusting the position of the second spray frame 152 to accommodate different flanges, the square plate 154 can slide outward via the inclined surface of the drive plate 20. In conjunction with the guide rod 222, it can simultaneously drive the outer plate 221 and the connecting plate 223 outward. The multiple step blocks 231 connected to the connecting plate 223 can slide to a position where they mesh with the teeth of the gear 233. After the first spray frame 14 and the second spray frame 152 have both been sprayed with foam at their initial positions, the operator can pull the pull plate 237. At this time, the pull plate 237, in conjunction with the pull rope 236, can drive the rotating rod 234 to rotate, thereby causing the gear 233 to rotate counterclockwise, enabling the first... A corrugated pipe 12 moves along the arc surface of the outer frame 13, which can adjust the spraying position of the first spray frame 14 and the second spray frame 152, and spray the telescopic pipe 151 synchronously. The spraying area can be increased without the operator adjusting the standing position. After the foam spraying on one side is completed, the outer frame 13 can be rotated and the pull plate 237 can be pulled again to spray foam around the flange. The operator only needs to move the spraying device away from the flange to check whether there is bubbling, so as to know whether there is side leakage. After the pull plate 237 is released, the torsion spring 235 can reset the gear 233 and help the first spray frame 14 return to the initial position.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foam spraying device for airtightness leak testing, characterized in that: include, The adjusting component includes a mixing tank (10), a foam pump (11) is installed on the side wall of the mixing tank (10), a first corrugated pipe (12) is fixedly connected to the surface of the foam pump (11), an external frame (13) is fixedly connected to the upper end of the first corrugated pipe (12), a first spray frame (14) is slidably connected to the surface of the external frame (13), an adjusting component (15) is provided on the surface of the first spray frame (14), a reset component (16) is provided on the surface of the adjusting component (15), and a second corrugated pipe (17) is connected between the first spray frame (14) and the first corrugated pipe (12). The auxiliary components include a drive plate (20) that is slidably connected to the surface of the adjustment assembly (15), a recovery assembly (21) and a pulling assembly (22) are provided between the drive plate (20) and the adjustment assembly (15), and a power assembly (23) is provided between the pulling assembly (22) and the external frame (13) and the first spray frame (14).

2. The foam spraying device for airtightness leak testing according to claim 1, characterized in that: The adjustment assembly (15) includes a telescopic tube (151) fixedly connected to one side of the first spray frame (14), a second spray frame (152) fixedly connected to the side of the telescopic tube (151) away from the first spray frame (14), an outer plate (153) fixedly connected to the outer surface of the first spray frame (14), a square plate (154) slidably connected to the inner wall of the outer plate (153), a screw (155) threadedly connected to the surface of the square plate (154), and one end of the screw (155) rotatably connected to the outer surface of the second spray frame (152).

3. The foam spraying device for airtightness leak testing according to claim 2, characterized in that: The reset assembly (16) includes a round rod (161) fixedly connected inside the outer plate (153), the round rod (161) passing through the square plate (154), and a spring (162) sleeved on the surface of the round rod (161). The two ends of the spring (162) are fixedly connected to one side of the square plate (154) and the inner wall of the outer plate (153), respectively.

4. A foam spraying device for airtightness leak testing according to claim 2, characterized in that: The extension length of the telescopic tube (151) is adapted to the length of the inner wall groove of the outer plate (153), and the telescopic tube (151) is arc-shaped.

5. A foam spraying device for airtightness leak testing according to claim 2, characterized in that: The restoration component (21) includes two inclined blocks (211) that are slidably connected to the surface of the outer plate (153). The drive plate (20) is slidably connected to the outer plate (153). A rotating plate (212) is rotatably connected to the surface of the outer plate (153). The two ends of the rotating plate (212) are rotatably connected to the drive plate (20) and the inclined blocks (211) respectively.

6. A foam spraying device for airtightness leak testing according to claim 2, characterized in that: The pulling assembly (22) includes an outer plate (221) fixedly connected to the outside of the drive plate (20). Guide rods (222) are fixedly connected to both sides of the outer plate (153). The outer plate (221) is slidably connected to the guide rods (222). A series plate (223) is fixedly connected to the lower side of the outer plate (221).

7. A foam spraying device for airtightness leak testing according to claim 6, characterized in that: The power assembly (23) includes a plurality of step blocks (231) slidably connected to the outer surface of the first spray frame (14). The plurality of step blocks (231) are divided into two groups of half, and the step blocks (231) are fixedly connected to the connecting plate (223). Two extension plates (232) are fixedly connected to the surface of the outer frame (13). A gear (233) is rotatably connected to the side of the two extension plates (232) that is close to each other. The gear (233) is in the shape of an "I". Rotating rods (233) are rotatably connected to the surface of each of the two extension plates (232). 4) The rotating rod (234) is fixedly connected to the side of the gear (233). The outer end of the rotating rod (234) is in the shape of "I". The surface of the rotating rod (234) is fitted with a torsion spring (235). The two ends of the torsion spring (235) are fixedly connected to the rotating rod (234) and the extension plate (232) respectively. The outer end of the rotating rod (234) is wrapped with a pull rope (236). The surface of the outer frame (13) is slidably connected with a pull plate (237). One end of the pull rope (236) is fixedly connected to the pull plate (237).

Images