Valve bag detection device

Abstract

The invention provides a valve bag detection device, belongs to the technical field of detection devices, and solves the problem that high-pressure gas detection cannot be carried out on a valve bag in the using process of an existing device. The valve bag detection device comprises a detection box and a steam box, and is characterized in that a box door is hinged to one side of the surface of the detection box, a filling port is communicated with one corner of the upper portion of the steam box, a heater is fixedly connected to the lower portion of the interior of the steam box, and a control panel is fixedly connected to the surface of the box door; the heater is started to heat water in the steam box until high-temperature and high-pressure steam is generated, the air pump is started to pressurize the high-temperature and high-pressure steam into the valve bag through the air inlet pipe and the connecting pipe, gas and liquid sealing performance of the valve bag can be detected, and the problem that in the using process of an existing device, the sealing performance of the valve bag is poor is solved. And high-pressure gas detection cannot be carried out on the valve bag.

Description

Technical Field

[0001] The invention belongs to the technical field of detection devices and relates to a detection device, in particular to a valve bag detection device. Background Art

[0002] Valve bags, commonly known as paste-bottom bags, are an internationally popular packaging bag, mainly used for feeding from the top or bottom valve port, and are filled with special filling equipment. After filling, the materials are packed into cubes, and the stacking is neat and beautiful. It has the characteristics of improving packaging efficiency, convenient transportation, high firmness, low breakage rate, moisture-proof, waterproof and air-leakage-proof, etc. It is an environmentally friendly bag. When factories produce and process valve bags, they usually need a detection device to detect the valve bags.

[0003] After searching, for example, a Chinese patent document discloses a device for detecting the air permeability of a valve bag [Application No.: 202320534809.7; Publication No.: CN219737203U]. This detection device includes a heat-insulating box, the heat-insulating box is provided with an installation cavity with an opening facing upward, the bottom of the installation cavity is fixedly connected to an insulating seat, a plurality of heating resistors are fixedly connected to the insulating seat, a heat transfer plate is fixedly connected to the top of the insulating seat, an evaporation barrel is installed on the heat transfer plate, the heat-insulating box is fixedly connected to a mounting platform at the upper end of the installation cavity, a sealing cover is placed on the mounting platform, a through opening is provided at the center of the sealing cover, a fixing device is installed at the upper end of the through opening, and a shaping cylinder is detachably connected to the upper end of the shaping cylinder, a detection mechanism is detachably connected to the lower end of the shaping cylinder, and a cobalt chloride test paper is installed in the detection mechanism. The present invention can judge the air permeability of the valve bag by the color change of the cobalt chloride test paper, thereby solving the problems existing in the prior art.

[0004] The device disclosed in this patent can realize fumigation of valve bags, and a detection mechanism is detachably connected to the lower end of the molding cylinder, and a cobalt chloride test paper is installed in the detection mechanism. The present invention can judge the air permeability of the valve bag by the color change of the cobalt chloride test paper, but in actual use, the valve bag cannot be pressurized by fumigation. Since valve bags are widely used and involve many industries, many materials cannot come into contact with the outside air after bagging, so there are very high requirements for the air tightness of the valve bag. The above scheme cannot perform a pressurization test on the valve bag. Therefore, when the internal pressure of the valve bag is high after sealing due to some materials, the valve bag is easily leaked. Therefore, a high-temperature and high-pressure detection device for the valve bag is needed to detect the air tightness of the valve bag. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a valve bag detection device, which starts the heater to heat the water inside the steam box until high-temperature and high-pressure water vapor is generated, and starts the air pump to pressurize the high-temperature and high-pressure water vapor into the valve bag through the air intake pipe and the connecting pipe, so as to detect the gas and liquid sealing of the valve bag.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A valve bag detection device comprises a detection box and a steam box, characterized in that a box door is hinged on one side of the surface of the detection box, a top corner of the steam box is connected to a filling port, a heater is fixedly connected to the lower part of the interior of the steam box, a control panel is fixedly connected to the surface of the box door, the heater and the control panel are electrically connected, an air pump is fixedly connected to the top of the steam box, the control panel is electrically connected to the air pump, the input end of the air pump passes through the steam box and is connected to the steam box, the output end of the air pump is connected to an air intake pipe, the other end of the air intake pipe passes through the detection box and is fixedly connected to the detection box, and the other end of the air intake pipe is internally movably connected to A connecting pipe, a connecting pad is provided at the connection between the air intake pipe and the connecting pipe, the connecting pad is fixedly connected to the inner wall of the air intake pipe, connecting mechanisms are provided on both sides of the other end of the air intake pipe, a humidity detector is fixedly connected to one side of the interior of the detection box, the humidity detector is electrically connected to the control panel, a tightening mechanism is provided on the upper part of the interior of the detection box, an air retaining mechanism is provided inside the other end of the air intake pipe, a fixing frame is provided at one end of the air retaining mechanism, the fixing frame is fixedly connected to the air intake pipe, an air pressure detector is fixedly connected to the fixing frame, the air pressure detector is electrically connected to the control panel, and a card machine mechanism is provided on one side of the detection box;

[0008] The connecting mechanism includes a U-shaped block, an eccentric block, a pull rod, a clamping rod and a pressure plate. The U-shaped block is fixedly connected to one side of one end of the intake pipe, the eccentric block is movably connected to one side of the U-shaped block, one end of the pull rod is eccentrically rotatably connected to the eccentric block, the clamping rod is fixedly connected to one side of one end of the connecting pipe, the other end of the pull rod is clamped to the clamping rod, and the pressure plate is fixedly connected to the other end of the eccentric block.

[0009] The working principle of the present invention is: starting the heater through the control panel to heat the water inside the steam box until high-temperature and high-pressure water vapor is generated, starting the air pump through the control panel to pressurize the high-temperature and high-pressure water vapor into the valve bag through the air inlet pipe and the connecting pipe, the gas and liquid sealing of the valve bag can be tested, and the humidity detector can be used to detect whether the valve bag leaks humid water vapor into the interior of the test box, and the air pressure detector can be used to detect whether the pressure inside the valve bag is leaking, and the pressure plate is pulled to drive the eccentric block to flip at the center point of the connection between the eccentric block and the pull rod, so as to change the length of the pull rod between the eccentric block and the clamping rod, so that the other end of the pull rod can be detached from the clamping rod, thereby removing the connecting pipe from the air inlet pipe, selecting a suitable connecting pipe according to the size of the feed port of the valve bag, and installing it, so as to facilitate the detection of the sizes of different feed ports of the valve bag.

[0010] The tightening mechanism includes a support plate, a motor, a winding shaft and a steel wire rope. The support plate is fixedly connected to the upper part of the interior of the detection box, the motor is fixedly connected to one side of the support plate, the winding shaft is rotatably connected between the support plates, one end of the winding shaft passes through the support plate and is fixedly connected to the output end of the motor, one end of the steel wire rope is fixedly connected to the upper part of the interior of the detection box, and the other end of the steel wire rope is fixedly connected to the winding shaft after being wrapped around the connecting pipe for one circle.

[0011] The above structure is used to fix the feed port of the valve bag to the other end of the connecting pipe through a wire rope.

[0012] The air retention mechanism includes an air retention ring, an air retention frame, a top plate, a guide rod, a guide rod spring and an air retention cushion. The air retention ring is fixedly connected to the inner wall of the intake pipe, the air retention frame is arranged at one end of the air retention ring and fixedly connected to the inner wall of the intake pipe, the top plate is arranged between the air retention ring and the air retention frame and conflicts with one end of the air retention ring, one end of the guide rod is fixedly connected to the other end of the top plate, the other end of the guide rod passes through the air retention frame and is slidably connected to the air retention frame, the guide rod spring is arranged between the air retention frame and the top plate, the guide rod spring is sleeved on the guide rod, and the air retention cushion is arranged between the air retention ring and the top plate and fixedly connected to the top plate.

[0013] The above structure is used to prevent the high-temperature and high-pressure gas inside the valve bag from flowing back into the steam box, which affects the detection of the airtightness of the valve bag by the device.

[0014] The other end of the air inlet pipe is connected to an exhaust pipe, the other end of the exhaust pipe is internally threadedly connected to an exhaust screw, one end of the exhaust screw is provided with exhaust holes inside and on both sides, and the other end of the exhaust screw is fixedly connected to a handle.

[0015] The above structure is used to discharge the gas inside the valve bag after the valve bag is inspected.

[0016] The other end of the connecting pipe is sleeved with a silicone ring, and the steel wire rope is wound around the silicone ring.

[0017] With the above structure, the valve bag can be tightened on the other end of the connecting pipe through the wire rope by the compressibility of the silicone ring itself.

[0018] A blocking cover is sleeved on the other end of the exhaust screw rod, and the blocking cover is arranged below the handle.

[0019] The above structure can prevent workers from getting burned when discharging high-temperature and high-pressure gas in the valve bag.

[0020] A connecting block is arranged below the other end of the connecting pipe, and both ends of the connecting block are sleeved on the steel wire rope and slidably connected therewith.

[0021] By adopting the above structure, the valve bag between the wound wire ropes can be compressed.

[0022] A transparent plate is fixedly connected to an inner wall of one side of the steam box, and a scale is arranged on the transparent plate.

[0023] The above structure can facilitate the staff to observe the liquid level inside the steam box.

[0024] The card machine mechanism includes a fixed block, a clamping block, a sliding groove and a sliding sleeve. The fixed block is fixedly connected to one side of the detection box, and the clamping block is fixedly connected to the other side of the box door. The fixed block is fitted with the clamping block. The sliding groove is opened on both sides of the fixed block and the other side of the clamping block. The sliding sleeve is mounted on the fixed block and the clamping block through the sliding groove and is slidably connected thereto.

[0025] By adopting the above structure, the box door and the steam box can be connected and the steam box can be sealed.

[0026] The other end of the connecting pipe is arranged as a conical surface, and one side of one end of the eccentric block is arranged as an arc.

[0027] With the above structure, it is convenient for the staff to put the valve bag on the connecting pipe, and it is easy for the staff to turn over the eccentric block.

[0028] Compared with the prior art, the valve bag detection device has the following advantages:

[0029] The present invention starts the heater to heat the water inside the steam box until high-temperature and high-pressure water vapor is generated, and starts the air pump to pressurize the high-temperature and high-pressure water vapor into the valve bag through the air intake pipe and the connecting pipe. The valve bag can be tested for gas and liquid sealing, which solves the problem that the current device cannot perform high-pressure gas detection on the valve bag during use.

[0030] , by pulling the pressure plate to drive the eccentric block to flip at the center point of the connection between the eccentric block and the pull rod, the length of the pull rod between the eccentric block and the clamping rod is changed, so that the other end of the pull rod can be detached from the clamping rod, thereby removing the connecting pipe from the air inlet pipe, selecting a suitable connecting pipe according to the size of the feed port of the valve bag, and installing it, so as to detect the sizes of different feed ports of the valve bag.

[0031] , by setting the feed port of the valve bag on the other end of the connecting pipe, and the position of the sleeve exceeds the position of the silicone ring, starting the motor through the control panel to drive the winding shaft to rotate, the other end of the wire rope can be wound up, and since the wire rope has a certain degree of flexibility, the feed port of the valve bag can be tightened on the connecting pipe according to the curvature of the other end of the connecting pipe of different sizes, and as the wire rope is tightened, the silicone ring will be compressed, so that the feed port of the valve bag can be bitten on the connecting pipe, which can prevent the high-temperature and high-pressure gas inside the valve bag from leaking from the connection between the valve bag and the connecting pipe during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0033] Figure 2 It is a cross-sectional schematic diagram of the detection box and the steam box in the present invention.

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the air intake pipe in the present invention.

[0035] Figure 4 It is a schematic diagram of the connection structure between the air intake pipe and the connecting pipe in the present invention.

[0036] Figure 5 It is a schematic diagram of the connection structure of the connection mechanism in the present invention.

[0037] Figure 6 The present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0038] Figure 7 It is a schematic diagram of the connection structure of the air retaining mechanism in the present invention.

[0039] Figure 8 It is a schematic diagram of the connection structure between the exhaust pipe and the exhaust screw in the present invention.

[0040] Fig. 9 The present invention Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0041] Fig.10 It is a schematic diagram of the connection structure between the steel wire rope and the connection block in the present invention.

[0042] Fig.11 It is a three-dimensional structural schematic diagram of the steam box and the transparent plate in the present invention.

[0043] In the figure, 1, detection box; 2, steam box; 3, box door; 4, filling port; 5, control panel; 6, air pump; 7, air intake pipe; 8, connecting pipe; 9, heater; 10, connecting mechanism; 101, U-shaped block; 102, eccentric block; 103, pull rod; 104, clamping rod; 105, pressing plate; 11, humidity detector; 12, tightening mechanism; 121, support plate; 122, motor; 123, reel; 124, wire rope; 13, connecting pad; 14, air retaining machine Structure; 141, air retaining ring; 142, air retaining frame; 143, top plate; 144, guide rod; 145, guide rod spring; 146, air retaining cushion; 15, fixing frame; 16, air pressure detector; 17, exhaust pipe; 18, card machine mechanism; 181, fixing block; 182, card connection block; 183, slide groove; 184, sliding sleeve; 19, silicone ring; 20, exhaust screw; 21, exhaust hole; 22, handle; 23, cover; 24, connecting block; 25, transparent plate; 26, scale. DETAILED DESCRIPTION

[0044] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0045] like Figure 1-Figure 11As shown, the valve bag detection device comprises a detection box 1 and a steam box 2, characterized in that a box door 3 is hinged on one side of the surface of the detection box 1, a filling port 4 is connected to a corner of the upper side of the steam box 2, a heater 9 is fixedly connected to the lower part of the interior of the steam box 2, a control panel 5 is fixedly connected to the surface of the box door 3, the heater 9 and the control panel 5 are electrically connected, an air pump 6 is fixedly connected to the top of the steam box 2, the control panel 5 is electrically connected to the air pump 6, the input end of the air pump 6 passes through the steam box 2 and is connected thereto, the output end of the air pump 6 is connected to an air intake pipe 7, the other end of the air intake pipe 7 passes through the detection box 1 and is fixedly connected thereto, the other end of the air intake pipe 7 is movably connected to a connecting pipe 8 inside, and the air intake pipe 8 is electrically connected to the steam box 2. A connection pad 13 is provided at the connection between the air pipe 7 and the connecting pipe 8, and the connection pad 13 is fixedly connected to the inner wall of the air inlet pipe 7. A connection mechanism 10 is provided on both sides of the other end of the air inlet pipe 7. A humidity detector 11 is fixedly connected to one side of the interior of the detection box 1, and the humidity detector 11 is electrically connected to the control panel 5. A tightening mechanism 12 is provided on the upper part of the interior of the detection box 1. An air retaining mechanism 14 is provided inside the other end of the air inlet pipe 7, and a fixing frame 15 is provided at one end of the air retaining mechanism 14. The fixing frame 15 is fixedly connected to the air inlet pipe 7, and an air pressure detector 16 is fixedly connected to the fixing frame 15. The air pressure detector 16 is electrically connected to the control panel 5. A card machine mechanism 18 is provided on one side of the detection box 1;

[0046] The connecting mechanism 10 includes a U-shaped block 101, an eccentric block 102, a pull rod 103, a clamping rod 104 and a pressure plate 105. The U-shaped block 101 is fixedly connected to one side of one end of the intake pipe 7, the eccentric block 102 is movably connected to one side of the U-shaped block 101, one end of the pull rod 103 is eccentrically rotatably connected to the eccentric block 102, the clamping rod 104 is fixedly connected to one side of one end of the connecting pipe 8, the other end of the pull rod 103 is clamped to the clamping rod 104, and the pressure plate 105 is fixedly connected to the other end of the eccentric block 102. The device heats the water inside the steam box 2 by starting the heater 9 until high-temperature and high-pressure water vapor is generated, and the high-temperature and high-pressure water vapor is heated by starting the air pump 6 through the intake pipe 7 and the connecting pipe 8. The water vapor pressurized into the valve bag can be used to detect the gas and liquid tightness of the valve bag, which solves the problem that the current device cannot perform high-pressure gas detection on the valve bag during use. In addition, by setting a connecting mechanism 10, the eccentric block 102 is driven by pulling the pressure plate 105 to flip the center point of the connection between the eccentric block 102 and the pull rod 103, so as to change the length of the pull rod 103 between the eccentric block 102 and the clamping rod 104, so that the other end of the pull rod 103 can be detached from the clamping rod 104, thereby removing the connecting pipe 8 from the air inlet pipe 7, selecting an appropriate connecting pipe 8 according to the size of the feed port of the valve bag, and installing it, so as to detect the sizes of different feed ports of the valve bag.

[0047] The tightening mechanism 12 includes a support plate 121, a motor 122, a winding shaft 123 and a wire rope 124. The support plate 121 is fixedly connected to the upper part of the interior of the detection box 1, the motor 122 is fixedly connected to one side of the support plate 121, the winding shaft 123 is rotatably connected between the support plates 121, one end of the winding shaft 123 passes through the support plate 121 and is fixedly connected to the output end of the motor 122, one end of the wire rope 124 is fixedly connected to the upper part of the interior of the detection box 1, and the other end of the wire rope 124 is wrapped around the connecting pipe 8 for one circle and then fixedly connected to the winding shaft 123. In this embodiment, by setting the tightening mechanism 12, by setting the feed port of the valve bag on the other end of the connecting pipe 8, the motor 122 is started through the control panel 5 to drive the winding shaft 123 to rotate, so that the other end of the wire rope 124 can be wound up. Since the wire rope 124 has a certain degree of flexibility, the feed port of the valve bag can be tightened on the connecting pipe 8.

[0048] The air retaining mechanism 14 includes an air retaining ring 141, an air retaining frame 142, a top plate 143, a guide rod 144, a guide rod spring 145 and an air retaining cushion 146. The air retaining ring 141 is fixedly connected to the inner wall of the intake pipe 7. The air retaining frame 142 is arranged at one end of the air retaining ring 141 and fixedly connected to the inner wall of the intake pipe 7. The top plate 143 is arranged between the air retaining ring 141 and the air retaining frame 142 and conflicts with one end of the air retaining ring 141. One end of the guide rod 144 is fixedly connected to the other end of the top plate 143. The other end of the guide rod 144 passes through the air retaining frame 142 and is slidably connected thereto. The guide rod spring 145 is arranged between the air retaining frame 142 and the top plate 143. The guide rod spring 145 is sleeved on the guide rod 144, and the air retaining cushion 146 is arranged between the air retaining ring 141 and the top plate 143 and is fixedly connected to the top plate 143. In this embodiment, through the setting of the air retaining mechanism 14, under the action force of the guide rod spring 145 itself, the top plate 143, the air retaining cushion 146 and the air retaining ring 141 can be pushed to conflict with each other to prevent the high-temperature and high-pressure gas inside the valve bag from flowing back during the detection process. At the same time, when the air pump 6 conveys high-temperature and high-pressure gas to the valve bag, the air retaining cushion 146 and the top plate 143 can be pushed to overcome the action force of the guide rod spring 145 and move, thereby pressurizing the inside of the valve bag.

[0049] The other end of the air inlet pipe 7 is connected to an exhaust pipe 17, and the other end of the exhaust pipe 17 is internally threadedly connected to an exhaust screw 20. Exhaust holes 21 are provided inside one end and on both sides of the exhaust screw 20, and the other end of the exhaust screw 20 is fixedly connected to a handle 22. In this embodiment, by arranging the exhaust pipe 17 and the exhaust screw 20, after the air tightness test of the valve bag is completed, the exhaust screw 20 is driven to rotate by turning the handle 22, so that the exhaust hole 21 on the exhaust screw 20 is connected to the outside, so as to discharge the high-temperature and high-pressure gas in the valve bag.

[0050] The other end of the connecting tube 8 is sleeved with a silicone ring 19, and a steel wire rope 124 is wound around the silicone ring 19. In this embodiment, by providing the silicone ring 19 and tightening the steel wire rope 124, the silicone ring 19 will be compressed, so that the feed port of the valve bag can be bitten on the connecting tube 8, thereby preventing the high-temperature and high-pressure gas inside the valve bag from leaking from the connection between the valve bag and the connecting tube 8 during detection.

[0051] A baffle 23 is sleeved on the other end of the exhaust screw 20, and the baffle 23 is arranged below the handle 22. In this embodiment, by setting the baffle 23, the staff can be prevented from being scalded when discharging the high-temperature and high-pressure gas in the valve bag, thereby playing a protective role.

[0052] A connecting block 24 is provided below the other end of the connecting pipe 8, and both ends of the connecting block 24 are sleeved on the steel wire rope 124 and slidably connected thereto. In the present embodiment, by providing the connecting block 24, after the steel wire rope 124 is wound around once, there will be a gap between the reunited steel wire ropes 124. When the steel wire rope 124 is tightened, the connecting block 24 will also be compressed to tighten the valve bag.

[0053] A transparent plate 25 is fixedly connected to the inner wall of one side of the steam box 2, and a scale 26 is set on the transparent plate 25. In this embodiment, by setting the transparent plate 25 and the scale 26, it is convenient for the staff to observe the liquid level inside the steam box 2, so that the staff can replenish water in time and prevent excessive water replenishment.

[0054] The card machine mechanism 18 includes a fixed block 181, a clamping block 182, a slide groove 183 and a sliding sleeve 184. The fixed block 181 is fixedly connected to one side of the detection box 1, and the clamping block 182 is fixedly connected to the other side of the box door 3. The fixed block 181 and the clamping block 182 are fitted together. The slide groove 183 is opened on both sides of the fixed block 181 and the other side of the clamping block 182. The sliding sleeve 184 is sleeved on the fixed block 181 and the clamping block 182 through the slide groove 183 and is slidably connected thereto. In this embodiment, by setting the card machine mechanism 18, by fitting the box door 3 with the detection box 1, and by pushing the sliding sleeve 184 to move it to the fixed block 181 and the clamping block 182, the detection box 1 and the box door 3 can be fixed to seal the detection box 1.

[0055] The other end of the connecting pipe 8 is set to a conical surface, and one side of one end of the eccentric block 102 is set to an arc shape. In this embodiment, by setting the other end of the connecting pipe 8 to a conical surface, it is convenient for the staff to put the valve bag on the connecting pipe 8, and by setting one side of one end of the eccentric block 102 to an arc shape, due to the smoothness of the arc, the staff can easily flip the eccentric block 102.

[0056] It should be noted that: in actual use, a card machine mechanism for sealing the detection box is installed on one side of the detection box in the device. Since the card machine mechanism is not the focus of this article, this article omits the card machine mechanism structure in the figures and documents.

[0057] The working principle of the present invention is as follows: first, according to the size of the valve bag feed port, select a connecting tube 8 whose other end size matches the size of the valve bag feed port, then insert one end of the suitable connecting tube 8, that is, the universal end, into the air inlet pipe 7, then respectively clamp the other ends of the tie rods 103 on the connecting mechanisms 10 on both sides of the other end of the air inlet pipe 7 into the clamping rods 104 on the universal end of the connecting tube 8, then place the eccentric block 102 on one side of the U-shaped block 101, pull the pressure plate 105 to drive the eccentric block 102 to flip at the center point of the connection between the eccentric block 102 and the tie rod 103, and turn the tie rod 103 A small part is pulled into the interior of the eccentric block 102 to change the length of the pull rod 103 between the eccentric block 102 and the clamping rod 104. Then, the feed port of the valve bag is aligned with the other end of the connecting pipe 8, and the valve bag is sleeved on the connecting pipe 8. Note that the sleeve position exceeds the position of the silicone ring 19. Then, the motor 122 is started through the control panel 5 to drive the winding shaft 123 to rotate, so that the other end of the wire rope 124 can be wound. Since the wire rope 124 has a certain degree of flexibility, the feed port of the valve bag can be tightened on the connecting pipe 8, and as the wire rope 124 is tightened, the silicone ring 19 will be pressed. 9 is compressed, so that the feed port of the valve bag can be tightened on the connecting pipe 8, and then the box door 3 is closed. Then the staff fills a proper amount of water into the steam box 2 through the filling port 4 according to the transparent plate 25 and the scale 26, and then starts the heater 9 through the control panel 5 to heat the water in the steam box 2 until high-temperature and high-pressure water vapor is generated. By starting the air pump 6, the high-temperature and high-pressure water vapor is pressurized into the valve bag through the air inlet pipe 7 and the connecting pipe 8, and the valve bag is tested for gas and liquid sealing. At this time, the staff sends the electrical signal transmitted to the control panel 5 by the air pressure detector 16. , check the value on the control panel 5. When the gas pressure reaches the detection pressure, turn off the air pump 6 and the heater 9 through the control panel 5. At the same time, check the humidity value inside the detection box 1 transmitted to the control panel 5 by the humidity detector 11 and remember it. Later, during the detection process, the staff needs to regularly check the electrical signal value transmitted to the control panel 5 by the humidity detector 11 and the air pressure detector 16 to determine the airtightness of the valve bag. When the detection is completed, open the box door 3 and the staff can remove the valve bag by turning the exhaust screw 20 to discharge the high-temperature and high-pressure gas in the valve bag.

[0058] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A valve bag detection device, comprising a detection box (1) and a steam box (2), characterized in that: A door (3) is hingedly connected to one side of the surface of the detection box (1); a top corner of the steam box (2) is connected to a filling port (4); a heater (9) is fixedly connected to the bottom of the interior of the steam box (2); a control panel (5) is fixedly connected to the surface of the door (3); the heater (9) and the control panel (5) are electrically connected; an air pump (6) is fixedly connected to the top of the steam box (2); the control panel (5) and the air pump (6) are electrically connected; an input end of the air pump (6) passes through the steam box (2) and is connected thereto; an output end of the air pump (6) is connected to an air intake pipe (7); the other end of the air intake pipe (7) passes through the detection box (1) and is fixedly connected thereto; the other end of the air intake pipe (7) is movably connected to a connecting pipe (8) inside; a connection between the air intake pipe (7) and the connecting pipe (8) is provided. A connection pad (13) is provided, the connection pad (13) is fixedly connected to the inner wall of the air intake pipe (7), the other end of the air intake pipe (7) is provided with connection mechanisms (10) on both sides, the inner side of the detection box (1) is fixedly connected to a humidity detector (11), the humidity detector (11) is electrically connected to the control panel (5), a tightening mechanism (12) is provided on the upper part of the inner part of the detection box (1), the other end of the air intake pipe (7) is provided with an air retaining mechanism (14), one end of the air retaining mechanism (14) is provided with a fixing frame (15), the fixing frame (15) is fixedly connected to the air intake pipe (7), the fixing frame (15) is fixedly connected to an air pressure detector (16), the air pressure detector (16) is electrically connected to the control panel (5), and a card machine mechanism (18) is provided on one side of the detection box (1); The connecting mechanism (10) comprises a U-shaped block (101), an eccentric block (102), a pull rod (103), a clamping rod (104) and a pressure plate (105); the U-shaped block (101) is fixedly connected to one side of one end of the intake pipe (7); the eccentric block (102) is movably connected to one side of the U-shaped block (101); one end of the pull rod (103) is eccentrically rotatably connected to the eccentric block (102); the clamping rod (104) is fixedly connected to one side of one end of the connecting pipe (8); the other end of the pull rod (103) is clamped to the clamping rod (104); and the pressure plate (105) is fixedly connected to the other end of the eccentric block (102).

2. A valve bag detection device according to claim 1, characterized in that: The tightening mechanism (12) comprises a support plate (121), a motor (122), a reel (123) and a steel wire rope (124); the support plate (121) is fixedly connected to the upper part of the interior of the detection box (1); the motor (122) is fixedly connected to one side of the support plate (121); the motor (122) is electrically connected to the control panel (5); the reel (123) is rotatably connected between the support plates (121); one end of the reel (123) passes through the support plate (121) and is fixedly connected to the output end of the motor (122); one end of the steel wire rope (124) is fixedly connected to the upper part of the interior of the detection box (1); and the other end of the steel wire rope (124) is fixedly connected to the reel (123) after being wound around the connecting pipe (8) for one circle.

3. A valve bag detection device according to claim 1, characterized in that: The air retaining mechanism (14) comprises an air retaining ring (141), an air retaining frame (142), a top plate (143), a guide rod (144), a guide rod spring (145) and an air retaining cushion (146); the air retaining ring (141) is fixedly connected to the inner wall of the air intake pipe (7); the air retaining frame (142) is arranged at one end of the air retaining ring (141) and is fixedly connected to the inner wall of the air intake pipe (7); the top plate (143) is arranged between the air retaining ring (141) and the air retaining frame (142) and is connected to the air retaining ring (141). 41), one end of the guide rod (144) is in conflict with the other end of the top plate (143), one end of the guide rod (144) is fixedly connected to the other end of the top plate (143), the other end of the guide rod (144) passes through the air retaining frame (142) and is slidably connected thereto, the guide rod spring (145) is arranged between the air retaining frame (142) and the top plate (143), the guide rod spring (145) is sleeved on the guide rod (144), and the air retaining cushion (146) is arranged between the air retaining ring (141) and the top plate (143) and is fixedly connected to the top plate (143).

4. A valve bag detection device according to claim 3, characterized in that: The other end of the air inlet pipe (7) is connected to an exhaust pipe (17) above, and the other end of the exhaust pipe (17) is internally threadedly connected to an exhaust screw (20), and exhaust holes (21) are provided inside and on both sides of one end of the exhaust screw (20), and the other end of the exhaust screw (20) is fixedly connected to a handle (22).

5. A valve bag detection device according to claim 1, characterized in that: The other end of the connecting pipe (8) is sleeved with a silicone ring (19), and the steel wire rope (124) is wound around the silicone ring (19).

6. A valve bag detection device according to claim 4, characterized in that: A blocking cover (23) is sleeved on the other end of the exhaust screw (20), and the blocking cover (23) is arranged below the handle (22).

7. A valve bag detection device according to claim 1, characterized in that: A connecting block (24) is provided below the other end of the connecting pipe (8), and both ends of the connecting block (24) are sleeved on the steel wire rope (124) and slidably connected thereto.

8. The valve bag detection device according to claim 1, characterized in that: A transparent plate (25) is fixedly connected to an inner wall of one side of the steam box (2), and a scale (26) is provided on the transparent plate (25).

9. The valve bag detection device according to claim 1, characterized in that: The card machine mechanism (18) comprises a fixed block (181), a clamping block (182), a slide groove (183) and a sliding sleeve (184); the fixed block (181) is fixedly connected to one side of the detection box (1); the clamping block (182) is fixedly connected to the other side of the box door (3); the fixed block (181) and the clamping block (182) are in close contact with each other; the slide groove (183) is provided on both sides of the fixed block (181) and the other side of the clamping block (182); the sliding sleeve (184) is sleeved on the fixed block (181) and the clamping block (182) through the slide groove (183) and is slidably connected thereto.

10. The valve bag detection device according to claim 1, characterized in that: The other end of the connecting pipe (8) is arranged in a conical surface, and one end of the eccentric block (102) is arranged in an arc shape.

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