Stainless steel pipe leakage detection device

Abstract

The invention discloses a stainless steel pipe leakage detection device, and belongs to the technical field of leakage detection, the stainless steel pipe leakage detection device comprises a conveying mechanism used for intermittently conveying a stainless steel pipe, and the conveying mechanism is provided with two leakage detection mechanisms used for detecting the leakage of the stainless steel pipe and a feeding mechanism used for feeding; the conveying mechanism can automatically take out the stainless steel pipes in the feeding mechanism to the leak detection mechanism, transfer the detected stainless steel pipes and finally send out the qualified stainless steel pipes, full-automatic conveying action is achieved, the automation degree is high, and continuity is good; the leak detection mechanism does not act when the intermittent lifting block lifts the stainless steel pipe, and performs leak detection on the stainless steel pipe when the intermittent lifting block moves below the groove of the placing shell, so that the detection and conveying processes are continuously performed, and the detection efficiency is high; when the feeding mechanism makes contact with the intermittent lifting block every time, only one stainless steel pipe falls out, and then the stainless steel pipes are detected one by one.

Description

Technical Field

[0001] The invention relates to the technical field of leakage detection, and in particular to a stainless steel pipe leakage detection device. Background Art

[0002] Stainless steel pipe is a kind of piping material widely used in industry and daily life. It is made of stainless steel and has excellent corrosion resistance, oxidation resistance, mechanical strength and thermal stability, so it is widely used in many fields. Stainless steel pipe leakage detection is an important link to ensure the safety and reliability of stainless steel pipeline systems during operation. Since stainless steel pipes are usually used to withstand high pressures, temperatures and corrosive media, once a leak occurs, it will not only affect the production process, but may also cause environmental pollution or personal injury. By injecting gas into the pipeline, the pressure inside the pipeline is increased, and whether there is a pressure drop. By monitoring the pressure change, it can be determined whether the pipeline is leaking. The stainless steel pipe leakage detection device in the prior art is usually unable to achieve fully automatic continuous automatic detection, and the detection efficiency is low. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a stainless steel pipe leakage detection device, comprising a conveying mechanism for intermittently conveying stainless steel pipes, the conveying mechanism comprising a placing shell, the conveying mechanism is provided with two leak detection mechanisms for leak detection of stainless steel pipes and a feeding mechanism for feeding, the leak detection mechanism comprises a side frame, the side frame is fixedly mounted on the side of the placing shell, the feeding mechanism comprises a feeding rack, and the feeding rack is fixedly mounted on the placing shell.

[0004] Furthermore, the conveying mechanism includes an inner motor and a reduction gearbox fixedly installed in the placement shell, the motor shaft of the inner motor is connected to the input end of the reduction gearbox, an intermediate rotating shaft is rotatably installed on the placement shell, the intermediate rotating shaft is connected to the output end of the reduction gearbox, and intermediate wheels are fixedly installed at both ends of the intermediate rotating shaft.

[0005] Furthermore, two lifting rod modules are provided on the placing shell, and the lifting rod module includes a rotating plate rotatably mounted on the placing shell, an outer transmission wheel is fixedly mounted on the rotating plate, a fixed gear is fixedly mounted inside the placing shell, the rotating plate and the fixed gear are rotatably mounted, an eccentric rotating block is rotatably mounted on the rotating plate, a planetary gear is eccentrically fixedly mounted on the eccentric rotating block, the planetary gear is meshed with the fixed gear, and a rotating column is fixedly mounted on the eccentric rotating block.

[0006] Furthermore, a switching motor is fixedly mounted on the placement shell, a switching baffle is rotatably mounted on the placement shell, and the switching baffle is fixedly mounted to a motor shaft of the switching motor.

[0007] Furthermore, a short transmission belt is wrapped around the outer transmission wheel and the middle wheel of the lifting rod module close to the switching motor, and a long transmission belt is wrapped around the outer transmission wheel and the middle wheel of the lifting rod module close to the feeding rack. Intermittent lifting blocks are rotatably installed on the rotating columns of the two lifting rod modules, and slots for placing stainless steel pipes are provided on the placement shell and the intermittent lifting block.

[0008] The rotation of the inner motor drives the middle rotating shaft to rotate, thereby driving the middle wheel to rotate, and driving the two outer driving wheels to rotate through the short transmission belt and the long transmission belt, thereby driving the two rotating plates to rotate synchronously, thereby driving the two eccentric rotating blocks and the rotating column to rotate synchronously, thereby driving the intermittent lifting block to move. When the intermittent lifting block is lifted, the stainless steel pipe located in the groove of the placement shell is lifted through the groove of the intermittent lifting block, and when it is lowered, the stainless steel pipe is placed in the next groove of the placement shell, and this process is repeated. When the stainless steel pipe that has been inspected is transferred from between the two docking seats to the groove of the placement shell next to the switching motor, the stainless steel pipe in the groove of the placement shell next to the switching motor is transferred out of the placement shell. If the stainless steel pipe is qualified in the inspection, the switching motor will not work, and the stainless steel pipe will slide out along the end of the placement shell. If the stainless steel pipe is unqualified, the switching motor will rotate, so that the switching baffle will block the stainless steel pipe, and the inner motor will stop rotating.

[0009] Under the action of the fixed gear, the eccentric swivel block and the planetary gear rotate. When the swivel column is at the highest point, the axis of the swivel column is directly below the axis of the hinge point between the eccentric swivel block and the swivel plate. When the swivel column is at the lowest point, the axis of the swivel column is directly above the axis of the hinge point between the eccentric swivel block and the swivel plate. When the swivel column is located on the side closest to the feed rack, the axis of the swivel column is behind the axis of the hinge point between the eccentric swivel block and the swivel plate. When the swivel column is located on the side closest to the switching motor, the axis of the swivel column is in front of the axis of the hinge point between the eccentric swivel block and the swivel plate. This makes the intermittent lifting block move with a smaller vertical displacement, saving space, and a larger horizontal displacement, which is easy to use and increases the stability of the intermittent lifting block movement.

[0010] Furthermore, the leakage detection mechanism includes a slide rail fixedly mounted on the side frame, a track wheel rotatably mounted on the side frame, an inner transmission wheel fixedly mounted on the track wheel, an outer transmission belt wrapped around the inner transmission wheel and the outer transmission wheel, a docking seat slidably mounted on the slide rail, a sliding column slidably mounted in the docking seat, a pressure block fixedly mounted on the sliding column, a pressure block spring is arranged between the pressure block and the docking seat, a bottom guide column is fixedly mounted below the docking seat, a step groove is arranged on the track wheel, the bottom guide column slides in the step groove, the pressure block and the sliding column are hollow, and an air outlet is arranged on the pressure block.

[0011] Furthermore, an inflator is fixedly mounted on the docking seat of one leak detection mechanism, an air pressure sensor is fixedly mounted on the docking seat of the other leak detection mechanism, the slide column and the inflator are slidably mounted, and the slide column and the air pressure sensor are slidably mounted.

[0012] The outer transmission wheel drives the inner transmission wheel and the track wheel to rotate through the outer transmission belt, and drives the bottom guide column and the docking seat to slide along the slide rail through the step groove, so that the docking seats on both sides of the stainless steel tube reach the outside of the stainless steel tube. At the same time, the stainless steel tube presses against the pressure block, so that the pressure block spring is compressed, and the inflator passes gas into the stainless steel tube through the pressure block and the slide column, and detects the air pressure in the stainless steel tube through the air pressure sensor, thereby detecting the leakage of the stainless steel tube.

[0013] When the intermittent lifting block lifts the stainless steel pipe to the next workstation, the docking seat is at the far end. When the intermittent lifting block loses contact with the stainless steel pipe, the docking seat is at the proximal end, located on the outside of the stainless steel pipe, to perform leakage detection on the stainless steel pipe.

[0014] Furthermore, the feeding mechanism includes a sliding pipe slope fixedly installed on the feeding rack, a push plate is slidably installed on the feeding rack, a push rod is fixedly installed on the push plate, a rotating rod is rotatably installed on the push plate, an upper rotating rod is rotatably installed on the feeding rack, the upper rotating rod and the rotating rod are rotatably installed, two waist holes are arranged on the upper rotating rod, a lower baffle plate and an upper baffle plate are slidably installed on the feeding rack, a return spring is arranged between the lower baffle plate and the feeding rack, the upper baffle plate and the upper rotating rod are rotatably installed through the waist hole, the lower baffle plate and the upper rotating rod are rotatably installed through the waist hole, chamfers are arranged on the upper and lower surfaces of the lower baffle plate and the upper baffle plate, and stainless steel pipes are stacked in the feeding rack.

[0015] In the initial state, the lowest stainless steel tube is located on the lower baffle plate, and the return spring is in an unstressed state. When the intermittent lifting block contacts the push rod, it will push the push plate, thereby driving the rotating rod to rotate, thereby driving the upper rotating rod to rotate, thereby driving the upper baffle plate to slide, and the upper baffle plate is inserted between the lowest stainless steel tube and the stainless steel tube above it. At the same time, the lower baffle plate moves backward, and the return spring is compressed, causing the lowest stainless steel tube to fall into the groove of the intermittent lifting block, and then be brought between the two docking seats by the intermittent lifting block. When the intermittent lifting block is disengaged from the push rod, the return spring rebounds, causing the lower baffle plate to extend, and the upper baffle plate is pushed backward, causing the stainless steel tube to fall onto the lower baffle plate.

[0016] Compared with the prior art, the present invention has the following advantages: (1) the conveying mechanism provided in the present invention can automatically take out the stainless steel tube in the feeding mechanism to the leak detection mechanism, transfer the stainless steel tube that has been tested, and finally send out the qualified stainless steel tube, thereby realizing fully automatic conveying action, with high degree of automation and good continuity; (2) the leak detection mechanism provided in the present invention does not move when the intermittent lifting block lifts the stainless steel tube, and when the intermittent lifting block moves under the recess of the placement shell, the stainless steel tube is tested for leakage, so that the detection and conveying processes are carried out continuously, and the detection efficiency is high; (3) each time the feeding mechanism provided in the present invention contacts the intermittent lifting block, only one stainless steel tube falls out, thereby realizing the detection of each stainless steel tube one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 Schematic diagram of the conveying mechanism structure of the present invention Figure 1 .

[0019] Figure 3 Schematic diagram of the conveying mechanism structure of the present invention Figure 2 .

[0020] Figure 4 Schematic diagram of the conveying mechanism structure of the present invention Figure 3 .

[0021] Figure 5 The structure of the leak detection mechanism of the present invention is shown in FIG. Figure 1 .

[0022] Figure 6 The leak detection mechanism of the present invention is schematically shown in FIG. Figure 2 .

[0023] Figure 7 The structure of the leak detection mechanism of the present invention is shown in FIG. Figure 3 .

[0024] Figure 8 It is a schematic diagram of the track wheel structure of the present invention.

[0025] Fig. 9 The feeding mechanism structure of the present invention is shown in FIG. Figure 1 .

[0026] Fig.10 The feeding mechanism structure of the present invention is shown in FIG. Figure 2 .

[0027] Figure numbers: 101-placement housing; 102-switching motor; 103-switching baffle; 104-inner motor; 105-reduction box; 106-intermediate shaft; 107-intermediate wheel; 108-short transmission belt; 109-long transmission belt; 110-external transmission wheel; 111-fixed gear; 112-rotating plate; 113-planetary gear; 114-eccentric rotating block; 115-rotating column; 116-intermittent lifting block; 201-side frame; 202-track wheel; 203-external transmission Belt; 204-inner transmission wheel; 205-slide rail; 206-docking seat; 207-inflator; 208-air pressure sensor; 209-pressure block; 210-pressure block spring; 211-slide column; 212-bottom guide column; 213-step groove; 301-feeding rack; 302-slide pipe slope; 303-push rod; 304-push plate; 305-rotating rod; 306-upper rotating rod; 307-lower baffle; 308-upper baffle; 309-return spring; 4-stainless steel pipe. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Example: Reference Figure 1-Figure 10 A stainless steel pipe leakage detection device includes a conveying mechanism for intermittently conveying a stainless steel pipe 4, the conveying mechanism includes a placement shell 101, and the conveying mechanism is provided with two leak detection mechanisms for leak detection of the stainless steel pipe 4 and a feeding mechanism for feeding, the leak detection mechanism includes a side frame 201, the side frame 201 is fixedly mounted on the side of the placement shell 101, and the feeding mechanism includes a feeding rack 301, and the feeding rack 301 is fixedly mounted on the placement shell 101.

[0030] like Figure 2-Figure 4 As shown, the conveying mechanism includes an inner motor 104 and a reduction gearbox 105 fixedly installed in the placement shell 101. The motor shaft of the inner motor 104 is connected to the input end of the reduction gearbox 105. An intermediate rotating shaft 106 is rotatably installed on the placement shell 101. The intermediate rotating shaft 106 is connected to the output end of the reduction gearbox 105. Intermediate wheels 107 are fixedly installed at both ends of the intermediate rotating shaft 106.

[0031] like Figure 2-Figure 4 As shown, two lifting rod modules are arranged on the placing shell 101, and the lifting rod module includes a rotating plate 112 rotatably mounted on the placing shell 101, an outer transmission wheel 110 is fixedly mounted on the rotating plate 112, a fixed gear 111 is fixedly mounted inside the placing shell 101, the rotating plate 112 and the fixed gear 111 are rotatably mounted, an eccentric rotating block 114 is rotatably mounted on the rotating plate 112, a planetary gear 113 is eccentrically fixedly mounted on the eccentric rotating block 114, the planetary gear 113 is meshed with the fixed gear 111, and a rotating column 115 is fixedly mounted on the eccentric rotating block 114.

[0032] like Figure 2-Figure 4 As shown, a switching motor 102 is fixedly mounted on the placement shell 101 , a switching baffle 103 is rotatably mounted on the placement shell 101 , and the switching baffle 103 is fixedly mounted to the motor shaft of the switching motor 102 .

[0033] like Figure 2-Figure 4 As shown, a short transmission belt 108 is wound around the outer transmission wheel 110 and the intermediate wheel 107 of the lifting rod module close to the switching motor 102, and a long transmission belt 109 is wound around the outer transmission wheel 110 and the intermediate wheel 107 of the lifting rod module close to the feeding rack 301. An intermittent lifting block 116 is rotatably mounted on the rotating column 115 of the two lifting rod modules, and slots for placing the stainless steel pipe 4 are provided on the placement shell 101 and the intermittent lifting block 116.

[0034] The rotation of the inner motor 104 drives the intermediate rotating shaft 106 to rotate, thereby driving the intermediate wheel 107 to rotate, and driving the two outer transmission wheels 110 to rotate through the short transmission belt 108 and the long transmission belt 109, thereby driving the two rotating plates 112 to rotate synchronously, thereby driving the two eccentric rotating blocks 114 and the rotating column 115 to rotate synchronously, thereby driving the intermittent lifting block 116 to move. When the intermittent lifting block 116 is lifted, the stainless steel pipe 4 located in the groove of the placement shell 101 is lifted through the groove of the intermittent lifting block 116, and when it is lowered, the stainless steel pipe 4 is placed on the next side of the placement shell 101. The stainless steel tube 4 is placed in a groove and reciprocates in this way. When the stainless steel tube 4 that has been tested is transferred from between the two docking seats 206 to the groove of the placement shell 101 next to the switching motor 102, the stainless steel tube 4 in the groove of the placement shell 101 next to the switching motor 102 is transferred out of the placement shell 101. If the stainless steel tube 4 passes the test, the switching motor 102 does not work, and the stainless steel tube 4 slides out along the end of the placement shell 101. If the stainless steel tube 4 fails the test, the switching motor 102 rotates, so that the switching baffle 103 blocks the stainless steel tube 4, and the inner motor 104 stops rotating.

[0035] Under the action of the fixed gear 111, the eccentric swivel block 114 and the planetary gear 113 rotate. When the rotating column 115 is at the highest point, the axis of the rotating column 115 is directly below the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is at the lowest point, the axis of the rotating column 115 is directly above the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is located on the side closest to the feed rack 301, the axis of the rotating column 115 is behind the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is located on the side closest to the switching motor 102, the axis of the rotating column 115 is in front of the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. As a result, when the intermittent lifting block 116 moves, the vertical displacement is smaller, saving space, and the horizontal displacement is larger, which is easy to use, while increasing the stability of the movement of the intermittent lifting block 116.

[0036] like Figure 5-Figure 8 As shown, the leakage detection mechanism includes a slide rail 205 fixedly mounted on the side frame 201, a track wheel 202 is rotatably mounted on the side frame 201, an inner transmission wheel 204 is fixedly mounted on the track wheel 202, an outer transmission belt 203 is wound around the inner transmission wheel 204 and the outer transmission wheel 110, a docking seat 206 is slidably mounted on the slide rail 205, a slide column 211 is slidably mounted in the docking seat 206, a pressure block 209 is fixedly mounted on the slide column 211, a pressure block spring 210 is arranged between the pressure block 209 and the docking seat 206, a bottom guide column 212 is fixedly mounted below the docking seat 206, a step groove 213 is arranged on the track wheel 202, the bottom guide column 212 slides in the step groove 213, the pressure block 209 and the slide column 211 are hollow, and an air outlet is arranged on the pressure block 209.

[0037] like Figure 5-Figure 8 As shown, an inflator 207 is fixedly mounted on the docking seat 206 of one leak detection mechanism, an air pressure sensor 208 is fixedly mounted on the docking seat 206 of the other leak detection mechanism, a slide column 211 is slidably mounted on the inflator 207, and a slide column 211 is slidably mounted on the air pressure sensor 208.

[0038] The outer transmission wheel 110 drives the inner transmission wheel 204 and the track wheel 202 to rotate through the outer transmission belt 203, and drives the bottom guide column 212 and the docking seat 206 to slide along the slide rail 205 through the step groove 213, so that the docking seats 206 on both sides of the stainless steel tube 4 reach the outside of the stainless steel tube 4. At the same time, the stainless steel tube 4 presses against the pressure block 209, so that the pressure block spring 210 is compressed, and the inflator 207 passes gas into the stainless steel tube 4 through the pressure block 209 and the slide column 211, and detects the air pressure in the stainless steel tube 4 through the air pressure sensor 208, thereby detecting the leakage of the stainless steel tube 4.

[0039] When the intermittent lifting block 116 lifts the stainless steel pipe 4 to the next workstation, the docking seat 206 is at the far end. When the intermittent lifting block 116 is out of contact with the stainless steel pipe 4, the docking seat 206 is at the proximal end, located outside the stainless steel pipe 4, and the stainless steel pipe 4 is tested for leakage.

[0040] like Fig. 9 , Fig.10 As shown, the feeding mechanism includes a sliding pipe slope 302 fixedly installed on the feeding rack 301, a push plate 304 is slidably installed on the feeding rack 301, a push rod 303 is fixedly installed on the push plate 304, a rotating rod 305 is rotatably installed on the push plate 304, an upper rotating rod 306 is rotatably installed on the feeding rack 301, the upper rotating rod 306 is rotatably installed with the rotating rod 305, two waist holes are arranged on the upper rotating rod 306, a lower baffle plate 307 and an upper baffle plate 308 are slidably installed on the feeding rack 301, a return spring 309 is arranged between the lower baffle plate 307 and the feeding rack 301, the upper baffle plate 308 is rotatably installed with the upper rotating rod 306 through the waist hole, the lower baffle plate 307 and the upper rotating rod 306 are rotatably installed through the waist hole, the lower baffle plate 307 and the upper rotating rod 306 are rotatably installed through the waist hole, the upper and lower surfaces of the lower baffle plate 307 and the upper baffle plate 308 are chamfered, and the stainless steel pipe 4 is stacked in the feeding rack 301.

[0041] In the initial state, the lowest stainless steel tube 4 is located on the lower baffle plate 307, and the return spring 309 is in an unstressed state. When the intermittent lifting block 116 contacts the push rod 303, it will push the push plate 304, thereby driving the rotating rod 305 to rotate, thereby driving the upper rotating rod 306 to rotate, thereby driving the upper baffle plate 308 to slide, and the upper baffle plate 308 is inserted between the lowest stainless steel tube 4 and the stainless steel tube 4 above it. At the same time, the lower baffle plate 307 moves backward, and the return spring 309 is compressed, so that the lowest stainless steel tube 4 falls into the groove of the intermittent lifting block 116, and is then brought between the two docking seats 206 by the intermittent lifting block 116. When the intermittent lifting block 116 is disengaged from the push rod 303, the return spring 309 rebounds, causing the lower baffle plate 307 to extend, and the upper baffle plate 308 is pushed backward, so that the stainless steel tube 4 falls onto the lower baffle plate 307.

[0042] The working principle of a stainless steel pipe leakage detection device disclosed in the present invention is as follows: the inner motor 104 rotates to drive the intermediate rotating shaft 106 to rotate, thereby driving the intermediate wheel 107 to rotate, and driving the two outer transmission wheels 110 to rotate through the short transmission belt 108 and the long transmission belt 109, thereby driving the two rotating plates 112 to rotate synchronously, thereby driving the two eccentric rotating blocks 114 and the rotating column 115 to rotate synchronously, thereby driving the intermittent lifting block 116 to move, and when the intermittent lifting block 116 is lifted, the stainless steel pipe 4 located in the groove of the placement shell 101 is lifted through the groove of the intermittent lifting block 116, and when it is lowered, the stainless steel pipe 4 Place it in the next slot of the placement shell 101, and repeat this process. When the stainless steel tube 4 that has been tested is transferred from between the two docking seats 206 to the groove of the placement shell 101 next to the switching motor 102, the stainless steel tube 4 in the groove of the placement shell 101 next to the switching motor 102 is transferred out of the placement shell 101. If the stainless steel tube 4 passes the test, the switching motor 102 does not work, and the stainless steel tube 4 slides out along the end of the placement shell 101. If the stainless steel tube 4 fails the test, the switching motor 102 rotates, so that the switching baffle 103 blocks the stainless steel tube 4, and the inner motor 104 stops rotating. Under the action of the fixed gear 111, the eccentric swivel block 114 and the planetary gear 113 rotate. When the rotating column 115 is at the highest point, the axis of the rotating column 115 is directly below the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is at the lowest point, the axis of the rotating column 115 is directly above the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is located on the side closest to the feed rack 301, the axis of the rotating column 115 is behind the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. When the rotating column 115 is located on the side closest to the switching motor 102, the axis of the rotating column 115 is in front of the axis of the hinge point of the eccentric swivel block 114 and the rotating plate 112. As a result, when the intermittent lifting block 116 moves, the vertical displacement is smaller, saving space, and the horizontal displacement is larger, which is easy to use, while increasing the stability of the movement of the intermittent lifting block 116. In the initial state, the lowest stainless steel tube 4 is located on the lower baffle plate 307, and the return spring 309 is in an unstressed state. When the intermittent lifting block 116 contacts the push rod 303, it will push the push plate 304, thereby driving the rotating rod 305 to rotate, thereby driving the upper rotating rod 306 to rotate, thereby driving the upper baffle plate 308 to slide, and the upper baffle plate 308 is inserted between the lowest stainless steel tube 4 and the stainless steel tube 4 above it. At the same time, the lower baffle plate 307 moves backward, and the return spring 309 is compressed, so that the lowest stainless steel tube 4 falls into the groove of the intermittent lifting block 116, and is then brought between the two docking seats 206 by the intermittent lifting block 116. When the intermittent lifting block 116 is disengaged from the push rod 303, the return spring 309 rebounds, causing the lower baffle plate 307 to extend, and the upper baffle plate 308 is pushed backward, so that the stainless steel tube 4 falls onto the lower baffle plate 307.In the initial state, the lowest stainless steel tube 4 is located on the lower baffle plate 307, and the return spring 309 is in an unstressed state. When the intermittent lifting block 116 contacts the push rod 303, it will push the push plate 304, thereby driving the rotating rod 305 to rotate, thereby driving the upper rotating rod 306 to rotate, thereby driving the upper baffle plate 308 to slide, and the upper baffle plate 308 is inserted between the lowest stainless steel tube 4 and the stainless steel tube 4 above it. At the same time, the lower baffle plate 307 moves backward, and the return spring 309 is compressed, so that the lowest stainless steel tube 4 falls into the groove of the intermittent lifting block 116, and is then brought between the two docking seats 206 by the intermittent lifting block 116. When the intermittent lifting block 116 is disengaged from the push rod 303, the return spring 309 rebounds, causing the lower baffle plate 307 to extend, and the upper baffle plate 308 is pushed backward, so that the stainless steel tube 4 falls onto the lower baffle plate 307. The outer drive wheel 110 drives the inner drive wheel 204 and the track wheel 202 to rotate through the outer drive belt 203, and drives the bottom guide column 212 and the docking seat 206 to slide along the slide rail 205 through the step groove 213, so that the docking seats 206 on both sides of the stainless steel tube 4 reach the outside of the stainless steel tube 4, and at the same time, the stainless steel tube 4 hits the pressure block 209, so that the pressure block spring 210 is compressed, and the inflator 207 passes gas into the stainless steel tube 4 through the pressure block 209 and the slide column 211, and detects the air pressure in the stainless steel tube 4 through the air pressure sensor 208, so as to detect the leakage of the stainless steel tube 4. When the intermittent lifting block 116 lifts the stainless steel tube 4 to the next station, the docking seat 206 is at the far end, and when the intermittent lifting block 116 is out of contact with the stainless steel tube 4, the docking seat 206 is at the near end, located on the outside of the stainless steel tube 4, and the stainless steel tube 4 is tested for leakage.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stainless steel pipe leakage detection device, comprising a conveying mechanism for intermittently conveying a stainless steel pipe (4), characterized in that: The conveying mechanism comprises a placement shell (101), and is provided with two leak detection mechanisms for performing leak detection on the stainless steel pipe (4) and a feeding mechanism for feeding, the leak detection mechanism comprises a side frame (201), and the side frame (201) is fixedly mounted on the side of the placement shell (101), and the feeding mechanism comprises a feeding frame (301), and the feeding frame (301) is fixedly mounted on the placement shell (101).

2. A stainless steel pipe leakage detection device according to claim 1, characterized in that: The conveying mechanism comprises an inner motor (104) and a reduction box (105) fixedly mounted in a placement shell (101); a motor shaft of the inner motor (104) is connected to an input end of the reduction box (105); an intermediate rotating shaft (106) is rotatably mounted on the placement shell (101); the intermediate rotating shaft (106) is connected to an output end of the reduction box (105); and intermediate wheels (107) are fixedly mounted at both ends of the intermediate rotating shaft (106).

3. A stainless steel pipe leakage detection device according to claim 2, characterized in that: Two lifting rod modules are arranged on the placement shell (101), and the lifting rod module comprises a rotating plate (112) rotatably mounted on the placement shell (101), an outer transmission wheel (110) being fixedly mounted on the rotating plate (112), a fixed gear (111) being fixedly mounted inside the placement shell (101), the rotating plate (112) and the fixed gear (111) being rotatably mounted, an eccentric rotating block (114) being rotatably mounted on the rotating plate (112), a planetary gear (113) being eccentrically fixedly mounted on the eccentric rotating block (114), the planetary gear (113) being meshed with the fixed gear (111), and a rotating column (115) being fixedly mounted on the eccentric rotating block (114).

4. A stainless steel pipe leakage detection device according to claim 3, characterized in that: A switching motor (102) is fixedly mounted on the placement shell (101), and a switching baffle (103) is rotatably mounted on the placement shell (101), and the switching baffle (103) is fixedly mounted to the motor shaft of the switching motor (102).

5. A stainless steel pipe leakage detection device according to claim 4, characterized in that: The outer transmission wheel (110) and the intermediate wheel (107) of the lifting rod module on the side close to the switching motor (102) are wrapped with a short transmission belt (108), and the outer transmission wheel (110) and the intermediate wheel (107) of the lifting rod module on the side close to the feeding rack (301) are wrapped with a long transmission belt (109). Intermittent lifting blocks (116) are rotatably mounted on the rotating columns (115) of the two lifting rod modules, and notches for placing the stainless steel pipe (4) are provided on the placement shell (101) and the intermittent lifting blocks (116).

6. A stainless steel pipe leakage detection device according to claim 3, characterized in that: The leak detection mechanism comprises a slide rail (205) fixedly mounted on a side frame (201); a track wheel (202) is rotatably mounted on the side frame (201); an inner transmission wheel (204) is fixedly mounted on the track wheel (202); an outer transmission belt (203) is wound around the inner transmission wheel (204) and the outer transmission wheel (110); a docking seat (206) is slidably mounted on the slide rail (205); a slide column (211) is slidably mounted inside the docking seat (206); A pressure block (209) is fixedly mounted on the slide column (211), a pressure block spring (210) is arranged between the pressure block (209) and the docking seat (206), a bottom guide column (212) is fixedly mounted below the docking seat (206), a stepped groove (213) is arranged on the track wheel (202), the bottom guide column (212) slides in the stepped groove (213), the pressure block (209) and the slide column (211) are hollow, and an air outlet is arranged on the pressure block (209).

7. A stainless steel pipe leakage detection device according to claim 6, characterized in that: An inflator (207) is fixedly mounted on the docking seat (206) of one leak detection mechanism, an air pressure sensor (208) is fixedly mounted on the docking seat (206) of the other leak detection mechanism, the sliding column (211) is slidably mounted on the inflator (207), and the sliding column (211) is slidably mounted on the air pressure sensor (208).

8. A stainless steel pipe leakage detection device according to claim 1, characterized in that: The feeding mechanism comprises a sliding pipe slope (302) fixedly mounted on a feeding frame (301); a push plate (304) is slidably mounted on the feeding frame (301); a push rod (303) is fixedly mounted on the push plate (304); a rotating rod (305) is rotatably mounted on the push plate (304); an upper rotating rod (306) is rotatably mounted on the feeding frame (301); the upper rotating rod (306) is rotatably mounted on the rotating rod (305); two waist holes are arranged on the upper rotating rod (306); and the feeding frame (301) is provided with a plurality of sliding pipes. 1) A lower baffle plate (307) and an upper baffle plate (308) are slidably mounted on the upper surface, a return spring (309) is arranged between the lower baffle plate (307) and the feed rack (301), the upper baffle plate (308) and the upper rotating rod (306) are rotatably mounted through a waist hole, the lower baffle plate (307) and the upper rotating rod (306) are rotatably mounted through the waist hole, chamfers are arranged on the upper and lower surfaces of the lower baffle plate (307) and the upper baffle plate (308), and the stainless steel pipe (4) is stacked in the feed rack (301).

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