Conveying device and method for detecting air tightness of liquefied gas metal cylinder

Abstract

The present invention relates to the field of conveying devices. The present invention discloses a conveying device and method for detecting the air tightness of a liquefied gas metal cylinder. The problem to be solved by the present invention is that the liquefied gas metal cylinder on the conveyor belt will shake during the conveying process, resulting in inconsistent directions of the gas filling valve openings of the liquefied gas metal cylinder, and the user needs to adjust the direction of the gas filling valve openings of the liquefied gas metal cylinder. The present invention is composed of a positioning mechanism, an internal support mechanism, and a limiting mechanism. In the conveying device for detecting the air tightness of a liquefied gas metal cylinder, when the arc notch of the arc notch handle on the liquefied gas metal cylinder is facing the arc notch slide, the two contact plates on the arc notch slide are inserted into the arc notch handle under the action of a third spring telescopic rod, limiting its continued rotation, ensuring that the air inlet valve of the liquefied gas metal cylinder is placed on the conveying platform facing left, completing the adjustment of the direction of the gas filling valve opening of the liquefied gas metal cylinder, and ensuring that the subsequent inflator can better inflate the liquefied gas metal cylinder for air tightness detection.

Description

Technical Field

[0001] The invention relates to the field of conveying devices, and in particular to a conveying device and method for detecting the air tightness of a liquefied gas metal cylinder. Background Art

[0002] Liquefied gas cylinders are used to store high-pressure gases, and their air tightness is very important. During the production and subsequent use of liquefied gas cylinders, it is necessary to conduct air tightness testing on the liquefied gas cylinders.

[0003] When the existing device performs air tightness detection on the liquefied gas metal cylinder, the liquefied gas metal cylinder needs to be placed on a conveyor belt. The liquefied gas metal cylinder on the conveyor belt will shake during the transportation process, causing the direction of the liquefied gas metal cylinder's inflation valve port to deviate. At this time, the user needs to adjust the direction of the liquefied gas metal cylinder's inflation valve port again, affecting the efficiency of the device in detecting the inflation of the liquefied gas metal cylinder. Summary of the invention

[0004] The purpose of the present invention is to provide a conveying device and method for testing the air tightness of liquefied gas metal cylinders, so as to solve the problem that the liquefied gas metal cylinder on the conveyor belt mentioned in the above background technology will shake during the transportation process, resulting in inconsistent directions of the filling valve ports of the liquefied gas metal cylinders, and the user needs to adjust the directions of the filling valve ports of the liquefied gas metal cylinders. In order to achieve the above purpose, the present invention provides the following technical solutions: a conveying device for testing the air tightness of liquefied gas metal cylinders, comprising a conveying platform, a support platform is fixedly connected to the outer side of the conveying platform, a telescopic support rod is fixedly connected to the support platform, and a high-definition camera is installed on the top surface of the telescopic support rod;

[0005] A folding support rod is installed on the side of the telescopic support rod, and a barcode scanning gun is installed on one end of the folding support rod away from the telescopic support rod;

[0006] An inflator is installed on the support platform, and a positioning mechanism is fixedly connected to the top surface of the support platform, and the positioning mechanism is on the left side of the inflator, and the orientation of the valve opening of the liquefied gas metal bottle transported on the transport platform is adjusted by the positioning mechanism;

[0007] The positioning mechanism comprises a vertical plate fixed on the top surface of the support platform, a cross bar is fixedly connected to the top of the front side of the vertical plate, a first one-way bearing is fixedly connected to the front end of the cross bar, a spiral groove rod is fixedly inserted into the inner ring of the first one-way bearing, a sleeve is sleeved on the outer side of the spiral groove rod, a convex rod is fixedly connected to the inner wall of the sleeve, and one end of the convex rod abuts against the spiral groove on the side of the spiral groove rod;

[0008] A plurality of first spring telescopic rods are fixedly connected to the outer wall of the sleeve in an annular shape at equal distances, and the end of the first spring telescopic rod away from the sleeve is chamfered. An outer sleeve is sleeved on the outer side of the sleeve, and a longitudinal groove is formed on the inner wall of the outer sleeve, and the inner wall of the longitudinal groove abuts against the end of the first spring telescopic rod away from the sleeve. A plurality of longitudinal limiting rods are also fixedly connected to the inner wall of the outer sleeve, and the plurality of longitudinal limiting rods are distributed in an annular shape at equal distances.

[0009] Preferably, a rotary bearing is fixedly sleeved on the outer side of the sleeve, a limiting convex block is fixedly connected to the outer ring of the rotary bearing, an end of the limiting convex block away from the rotary bearing abuts against the inner wall of the outer sleeve, and the limiting convex block is limited to slide up and down on the inner wall of the outer sleeve by a longitudinal limiting rod;

[0010] A spring is sleeved on the lower end of the outer wall of the sleeve, one end of the spring is fixed on the outer wall of the sleeve, and a rotating tube is fixed on the other end of the spring, the rotating tube is rotated and sleeved on the bottom end of the outer side of the sleeve, and a connecting rod is fixedly connected to the top of the rotating tube, and the upper end of the connecting rod is fixed on the bottom end of the limiting protrusion;

[0011] A second spring telescopic rod is fixedly connected to the outer wall of the rotating tube, a connecting bearing is fixedly connected to the upper end of the second spring telescopic rod, and the connecting bearing is fixed on the lower end surface of the outer sleeve.

[0012] Preferably, an internal support mechanism is provided on the outer side of the rotating tube, and the internal support mechanism includes six longitudinal grooves opened on the bottom of the outer wall of the rotating tube, a first spring telescopic plate is fixedly connected in the longitudinal groove, a second spring telescopic plate is hinged at the lower end of the first spring telescopic plate, a support plate is hinged at the lower end of the second spring telescopic plate, four hinged rods are hinged on the support plate, the four hinged rods are arranged parallel to each other, and one end of the four hinged rods away from the support plate is hinged to the outer wall of the rotating tube.

[0013] Preferably, a limiting mechanism is provided on the outer side of the outer sleeve, and the limiting mechanism includes an annular flange fixedly sleeved on the outer wall of the outer sleeve, and six spring telescopic tubes are provided on the lower side of the annular flange, and the six spring telescopic tubes are fixed on the outer wall of the outer sleeve in an annular shape at equal distances, and the upper ends of the six spring telescopic tubes are fixedly connected with a hollow disk, and the hollow disk is slidably arranged on the outer wall of the outer sleeve, and the bottom end of the hollow disk is fixedly connected with two transversely arranged third spring telescopic rods, and the end of the third spring telescopic rod away from the hollow disk is fixedly connected with an arc slide, and the arc slide is fixedly connected with a C-shaped push rod, and the end of the C-shaped push rod away from the arc slide abuts against the outer wall of the outer sleeve.

[0014] Preferably, the inner wall of the arc-shaped slideway is provided with an inner arc-shaped tooth plate and an outer arc-shaped tooth plate for upper limit sliding, and the inner arc-shaped tooth plate and the outer arc-shaped tooth plate are hinged on the opposite ends thereof with a fourth spring telescopic rod, one end of the fourth spring telescopic rod is hinged on the bottom surface of the inner wall of the arc-shaped slideway, a hollow gear is meshed between the inner arc-shaped tooth plate and the outer arc-shaped tooth plate, a through rod passes through the hollow gear, an L-shaped clamping rod is fixedly connected to the upper end of the through rod, and the end of the L-shaped clamping rod away from the through rod is conical, and the end of the L-shaped clamping rod away from the through rod abuts against the outer wall of the hollow gear;

[0015] The lower end of the through rod extends to the lower side of the arc-shaped slideway and is fixedly connected with a compression spring, and the upper end of the compression spring is fixed on the lower end surface of the arc-shaped slideway;

[0016] The inner arc tooth plate and the outer arc tooth plate are both hinged with a contact plate on the opposite end, and the two contact plates are both hinged with a return spring telescopic rod, one of the return spring telescopic rods is hinged on the inner arc tooth plate, and the other return spring telescopic rod is hinged on the outer arc tooth plate.

[0017] Preferably, a cylinder is fixedly connected to the outer side of the outer sleeve, and the cylinder is fixed on the bottom surface of the cross bar.

[0018] Preferably, the top end of the longitudinal limiting rod is a curved surface.

[0019] Preferably, the method for using the conveying device for detecting the air tightness of a liquefied gas metal cylinder comprises the following steps:

[0020] S1: The liquefied gas metal bottle is transported to the right through the conveying platform. When the liquefied gas metal bottle moves to the front side of the vertical plate, the cylinder drives the rotating tube and the sleeve to move upward, causing the convex rod inside the sleeve to slide upward in the spiral groove of the spiral groove rod and rotate clockwise, thereby tightening the mainspring;

[0021] S2: Then, the outer sleeve is driven downward by the cylinder and inserted into the arc-shaped notch handle at the upper end of the liquefied gas metal bottle, driving the lower end surface of the hollow disc to abut against the arc-shaped notch handle on the top surface of the liquefied gas metal bottle, and at this time, the lower end surface of the rotating tube abuts against the top surface of the liquefied gas metal bottle;

[0022] Then, the cylinder continues to extend, so that the annular flange moves downward with the outer sleeve and separates from one end of the C-shaped push rod of the hollow disc. At this time, the arc slideway is driven to slide under the action of the reset force of the third spring telescopic rod, so that the two abutment plates on the arc slideway abut against the outer wall of the arc-shaped notch handle on the top surface of the liquefied gas metal bottle;

[0023] S3: Then, as the outer sleeve continues to move downward, the second spring telescopic plate is pushed to deflect, and then the support plate is pushed to move and contact the inner wall of the arc-shaped notch handle on the top surface of the liquefied gas metal bottle. The outer sleeve continues to move downward, driving the longitudinal limit rod inside the outer sleeve to move downward synchronously, releasing the limiting force of the longitudinal limit rod on the limiting protrusion. At this time, the rotating tube rotates clockwise under the action of the winding force released by the spring, so that the support plate drives the liquefied gas metal bottle to rotate;

[0024] S4: During the rotation of the liquefied gas metal cylinder, when the arc notch of the arc notch handle on the liquefied gas metal cylinder is facing the arc notch slide, the two resistance plates on the arc notch slide are inserted into the arc-shaped mouth of the arc notch handle under the action of the third spring telescopic rod, limiting its continued rotation, and then the cylinder contracts to drive the outer sleeve to move up and reset, ensuring that the air inlet valve of the liquefied gas metal cylinder is placed on the conveying platform facing left.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the present invention, the cylinder is extended to drive the hollow disc to slide upward on the outer wall of the outer sleeve, so that the C-shaped push rod thereon moves upward and separates from the annular flange. At this time, the arc slideway drives the arc slideway to slide under the action of the reset force of the third spring telescopic rod, so that the two abutment plates on the ends of the inner arc tooth plate and the outer arc tooth plate inside the arc slideway both abut against the outer wall of the arc notch handle on the top surface of the liquefied gas metal bottle, ensuring that the device can support the inner walls of arc notch handles of different sizes.

[0027] In the present invention, by releasing the limiting force of the longitudinal limiting rod on the limiting protrusion, the rotating tube rotates clockwise under the action of the spring releasing its own winding force, so that the support plate drives the liquefied gas metal bottle to rotate, and during the rotation of the liquefied gas metal bottle, when the arc notch of the arc notch handle on the liquefied gas metal bottle is facing the arc slide, the two contact plates on the arc slide are inserted into the arc mouth of the arc notch handle under the action of the third spring telescopic rod, limiting its continued rotation, ensuring that the air inlet valve of the liquefied gas metal bottle is placed on the conveying platform facing left, completing the adjustment of the direction of the inflation valve mouth of the liquefied gas metal bottle, and ensuring that the subsequent inflator can better inflate the liquefied gas metal bottle to test the air tightness.

[0028] In the present invention, the cylinder contracts to drive the outer sleeve to move up and reset, so that the support plate is reset under the action of the contraction force of the first spring telescopic plate and the second spring telescopic plate. When the support plate is separated from the inner wall of the arc-shaped notched handle, the remaining winding force of the spring will drive the rotating tube to continue to rotate and release, ensuring that the subsequent device can continue to adjust the angle of the valve port of the subsequent liquefied gas metal bottle to ensure the efficiency of the inflator in detecting the inflation of the liquefied gas metal bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0031] Figure 3 It is a three-dimensional structural cross-sectional view of the outer sleeve and the annular flange of the present invention;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the annular flange and the hollow disc of the present invention;

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of the arc-shaped slideway and the C-shaped push rod of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the spring telescopic tube and the hollow disc of the present invention;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the fourth spring telescopic rod and the L-shaped clamping rod of the present invention;

[0036] Figure 8 It is a three-dimensional structural schematic diagram of the return spring telescopic rod and the outer arc-shaped tooth plate of the present invention.

[0037] In the figure: 1. conveying platform; 2. support platform; 3. telescopic support rod; 4. high-definition camera; 5. folding support rod; 6. barcode scanner; 7. inflator; 8. positioning mechanism; 81. vertical plate; 82. cross bar; 83. first one-way bearing; 84. spiral groove rod; 85. sleeve; 86. convex rod; 87. first spring telescopic rod; 88. outer sleeve; 89. longitudinal groove; 810. longitudinal limit rod; 811. rotating bearing; 812. limit convex block; 813. connecting bearing; 814. spring; 815. rotating tube; 816. connecting rod; 817. second spring telescopic rod; 9. inner support mechanism; 9 1. Longitudinal groove; 92. First spring telescopic plate; 93. Second spring telescopic plate; 94. Support plate; 95. Articulated rod; 10. Limiting mechanism; 101. Annular flange; 102. Spring telescopic tube; 103. Hollow disc; 104. Third spring telescopic rod; 105. Arc slide; 106. C-shaped push rod; 107. Inner arc tooth plate; 108. Hollow gear; 109. Fourth spring telescopic rod; 1010. L-shaped clamping rod; 1011. Compression spring; 1012. Resistance plate; 1013. Reset spring telescopic rod; 1014. Outer arc tooth plate; 1015. Through rod; 11. Cylinder. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 8 The present invention provides a technical solution: a conveying device for detecting the air tightness of a liquefied gas metal cylinder, comprising a conveying platform 1, a support platform 2 is fixedly connected to the outer side of the conveying platform 1, a telescopic support rod 3 is fixedly connected to the support platform 2, and a high-definition camera 4 is installed on the top surface of the telescopic support rod 3; the height of the high-definition camera 4 can be adjusted by the telescopic support rod 3, and the liquefied gas metal cylinder is scanned by the high-definition camera 4 to observe whether the liquefied gas metal cylinder is affixed with a QR code.

[0040] A folding support rod 5 is installed on the side of the telescopic support rod 3, and a barcode scanner 6 is installed on the end of the folding support rod 5 away from the telescopic support rod 3; the height and angle of the barcode scanner 6 are adjusted by the folding support rod 5 to ensure that the barcode scanner 6 can be aimed at the QR code on the liquefied gas metal cylinder and scan the corresponding information of the liquefied gas metal cylinder.

[0041] An inflator 7 is installed on the support platform 2, and a positioning mechanism 8 is fixedly connected to the top surface of the support platform 2, and the positioning mechanism 8 is on the left side of the inflator 7. The positioning mechanism 8 is used to adjust the direction of the valve opening of the liquefied gas metal bottle transported on the conveying platform 1; a mechanical arm is provided on the inflator 7, and the inflator 7 is docked with the liquefied gas metal bottle and inflated by the mechanical arm, and its air tightness is detected.

[0042] The positioning mechanism 8 includes a vertical plate 81 fixed on the top surface of the support platform 2, a cross bar 82 is fixedly connected to the top of the front side of the vertical plate 81, a first one-way bearing 83 is fixedly connected to the front end of the cross bar 82, a spiral groove rod 84 is fixedly inserted into the inner ring of the first one-way bearing 83, a sleeve 85 is sleeved on the outer side of the spiral groove rod 84, a convex rod 86 is fixedly connected to the inner wall of the sleeve 85, and one end of the convex rod 86 abuts against the spiral groove on the side of the spiral groove rod 84;

[0043] A plurality of first spring telescopic rods 87 are fixedly connected to the outer wall of the sleeve 85 in an annular shape at equal distances, and the end of the first spring telescopic rod 87 away from the sleeve 85 is chamfered. An outer sleeve 88 is sleeved on the outer side of the sleeve 85, and a longitudinal groove 89 is formed on the inner wall of the outer sleeve 88, and the inner wall of the longitudinal groove 89 abuts against the end of the first spring telescopic rod 87 away from the sleeve 85. A plurality of longitudinal limit rods 810 are also fixedly connected to the inner wall of the outer sleeve 88, and the plurality of longitudinal limit rods 810 are distributed in an annular shape at equal distances.

[0044] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a rotating bearing 811 is fixedly sleeved on the outer side of the sleeve 85, and a limiting protrusion 812 is fixedly connected to the outer ring of the rotating bearing 811. The end of the limiting protrusion 812 away from the rotating bearing 811 abuts against the inner wall of the outer sleeve 88, and the limiting protrusion 812 is limited by the longitudinal limiting rod 810 to slide up and down on the inner wall of the outer sleeve 88;

[0045] A spring 814 is sleeved on the lower end of the outer wall of the sleeve 85, one end of the spring 814 is fixed on the outer wall of the sleeve 85, and a rotating tube 815 is fixed on the other end of the spring 814. The rotating tube 815 is rotated and sleeved on the bottom end of the outer side of the sleeve 85, and a connecting rod 816 is fixedly connected to the top end of the rotating tube 815, and the upper end of the connecting rod 816 is fixed on the bottom end of the limiting protrusion 812;

[0046] A second spring telescopic rod 817 is fixedly connected to the outer wall of the rotating tube 815 , and a connecting bearing 813 is fixedly connected to the upper end of the second spring telescopic rod 817 , and the connecting bearing 813 is fixed to the lower end surface of the outer sleeve 88 .

[0047] In this embodiment, Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an internal support mechanism 9 is provided on the outer side of the rotating tube 815, and the internal support mechanism 9 includes six longitudinal grooves 91 opened on the bottom of the outer wall of the rotating tube 815, and a first spring telescopic plate 92 is fixedly connected in the longitudinal groove 91, and a pressure plate is fixedly connected to the lower end of the first spring telescopic plate 92, and the pressure plate is on the lower side of the connecting bearing 813 to ensure that when the outer sleeve 88 moves downward, the second spring telescopic plate 93 is stably pressed to deflect by the connecting bearing 813, and the lower end of the first spring telescopic plate 92 is hinged to the second spring telescopic plate 93, and the lower end of the second spring telescopic plate 93 is hinged to the support plate 94, and four hinged rods 95 are hinged on the support plate 94, and the four hinged rods 95 are arranged parallel to each other, and the ends of the four hinged rods 95 away from the support plate 94 are hinged on the outer wall of the rotating tube 815.

[0048] In this embodiment, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, a limiting mechanism 10 is provided on the outer side of the outer sleeve 88, and the limiting mechanism 10 includes an annular flange 101 fixedly sleeved on the outer wall of the outer sleeve 88, and six spring telescopic tubes 102 are arranged on the lower side of the annular flange 101, and the six spring telescopic tubes 102 are fixed on the outer wall of the outer sleeve 88 in an annular shape at equal distances, and the upper ends of the six spring telescopic tubes 102 are fixedly connected with a hollow disc 103, and the hollow disc 103 is slidably set on the outer wall of the outer sleeve 88, and the bottom end of the hollow disc 103 is fixedly connected with two transversely arranged third spring telescopic rods 104, and the end of the third spring telescopic rod 104 away from the hollow disc 103 is fixedly connected with an arcuate slide 105, and the arcuate slide 105 is fixedly connected with a C-shaped push rod 106, and the end of the C-shaped push rod 106 away from the arcuate slide 105 abuts against the outer wall of the outer sleeve 88.

[0049] In this embodiment, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the inner wall of the arc-shaped slide 105 is provided with an inner arc-shaped tooth plate 107 and an outer arc-shaped tooth plate 1014 for sliding upper limit positioning, and the inner arc-shaped tooth plate 107 and the outer arc-shaped tooth plate 1014 are hinged with a fourth spring telescopic rod 109 on the opposite ends thereof, and one end of the fourth spring telescopic rod 109 is hinged on the bottom surface of the inner wall of the arc-shaped slide 105, and a hollow gear 108 is meshed between the inner arc-shaped tooth plate 107 and the outer arc-shaped tooth plate 1014, and a through rod 1015 penetrates the hollow gear 108, and an L-shaped clamping rod 1010 is fixedly connected to the upper end of the through rod 1015, and the end of the L-shaped clamping rod 1010 away from the through rod 1015 is conical, and the end of the L-shaped clamping rod 1010 away from the through rod 1015 abuts against the outer wall of the hollow gear 108;

[0050] The lower end of the through rod 1015 extends to the lower side of the arc-shaped slideway 105 and is fixedly connected with a compression spring 1011 , and the upper end of the compression spring 1011 is fixed on the lower end surface of the arc-shaped slideway 105 ; the through rod 1015 cannot rotate on the arc-shaped slideway 105 .

[0051] A contact plate 1012 is hinged on the opposite end of the inner arc tooth plate 107 and the outer arc tooth plate 1014, and a return spring telescopic rod 1013 is hinged on the two contact plates 1012, one of the return spring telescopic rods 1013 is hinged on the inner arc tooth plate 107, and the other return spring telescopic rod 1013 is hinged on the outer arc tooth plate 1014. By pressing the through rod 1015 upward, the two L-shaped clamping rods 1010 on it are separated from the hollow gear 108, and then the outer arc-shaped tooth plate 1014 is moved to slide in the arc-shaped slideway 105, and the hollow gear 108 cooperates to drive the inner arc-shaped tooth plate 107 to slide in the arc-shaped slideway 105, and then the pressure on the through rod 1015 is released. Under the action of the reset force of the compression spring 1011, the through rod 1015 is driven downward, so that the L-shaped clamping rod 1010 is reset and abuts on the hollow gear 108, completing the user's adjustment of the distance between the two contact plates 1012, so that the distance between the two contact plates 1012 is adapted to the curvature of the arc-shaped notched handle on the top surface of the liquefied gas metal bottle to be inflated.

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a cylinder 11 is fixedly connected to the outer side of the outer sleeve 88 , and the cylinder 11 is fixed on the bottom surface of the cross bar 82 .

[0053] In this embodiment, Figure 4 As shown, the top end of the longitudinal limiting rod 810 is an arc surface.

[0054] The use method and advantages of the present invention: The use method of the conveying device for detecting the air tightness of a liquefied gas metal cylinder, the working process is as follows:

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown:

[0056] S1: The liquefied gas metal bottle is transported to the right through the conveying platform 1. When the liquefied gas metal bottle moves to the front side of the vertical plate 81, the cylinder 11 drives the outer sleeve 88 to move upward to cooperate with the second spring telescopic rod 817 to pull the rotating tube 815 and the sleeve 85 upward, so that the protruding rod 86 inside the sleeve 85 moves upward and slides in the spiral groove of the spiral groove rod 84 and rotates clockwise, thereby tightening the clockwork 814, so that the limiting protrusion 812 at the upper end of the connecting rod 816 on the rotating tube 815 has a clockwise rotation force and contacts the side of the longitudinal limiting rod 810 to prevent the rotating tube 815 from rotating;

[0057] S2: Then the cylinder 11 drives the outer sleeve 88 to move downward. At this time, the inclined end of the first spring telescopic rod 87 abuts against the longitudinal groove 89 and cannot rotate counterclockwise. Then, under the action of the first one-way bearing 83, the protruding rod 86 slides down in the spiral groove of the spiral groove rod 84, driving the spiral groove rod 84 to rotate clockwise.

[0058] When the outer sleeve 88 moves downward and is inserted into the arc-shaped notch handle at the upper end of the liquefied gas metal bottle, the lower end surface of the hollow disc 103 is driven to abut against the arc-shaped notch handle on the top surface of the liquefied gas metal bottle, and the lower end surface of the rotating tube 815 is driven to abut against the top surface of the liquefied gas metal bottle;

[0059] Then, the cylinder 11 continues to extend, driving the outer sleeve 88 to move downward in the hollow disc 103, so that the C-shaped push rod 106 on it moves upward and separates from the annular flange 101. At this time, the arc slide 105 is driven to slide under the action of the reset force of the third spring telescopic rod 104, so that the two abutting plates 1012 on the ends of the inner arc tooth plate 107 and the outer arc tooth plate 1014 inside the arc slide 105 both abut against the outer wall of the arc notched handle on the top surface of the liquefied gas metal bottle;

[0060] S3: Then, as the outer sleeve 88 continues to move downward, the second spring telescopic plate 93 is pushed to deflect, thereby pushing the support plate 94 to move to the side away from the rotating tube 815 and abut against the inner wall of the arc-shaped notched handle on the top surface of the liquefied gas metal bottle. Then, as the outer sleeve 88 continues to move downward, the longitudinal limit rod 810 inside the outer sleeve 88 is driven to move downward synchronously. When the top end of the longitudinal limit rod 810 moves downward and is located at the lower side of the limit protrusion 812, the limit force of the longitudinal limit rod 810 on the limit protrusion 812 is released. At this time, the rotating tube 815 rotates clockwise under the action of the winding force released by the spring 814, so that the support plate 94 drives the liquefied gas metal bottle to rotate;

[0061] S4: During the rotation of the liquefied gas metal bottle, when the arc notch of the arc notch handle on the liquefied gas metal bottle is facing the arc-shaped slide 105, the two abutment plates 1012 on the arc-shaped slide 105 are inserted into the arc-shaped opening of the arc-shaped notch handle under the action of the third spring telescopic rod 104, restricting its further rotation, thereby ensuring that the gas inlet valve of the liquefied gas metal bottle is placed on the conveying platform 1 facing left;

[0062] Then, the cylinder 11 contracts, driving the outer sleeve 88 to move upward and reset, so that the support plate 94 is reset under the action of the contraction force of the first spring telescopic plate 92 and the second spring telescopic plate 93. When the support plate 94 is separated from the inner wall of the arc-shaped notched handle, the remaining winding force of the spring 814 drives the rotating tube 815 to continue rotating and releasing;

[0063] Then, during the upward movement of the outer sleeve 88, the limiting protrusion 812 is again inserted between the two corresponding longitudinal limiting rods 810, and the limiting protrusion 812 is again limited in rotation by the two longitudinal limiting rods 810. Finally, the hollow disc 103 is driven downward by the spring telescopic tube 102, and the upper end of the C-shaped push rod 106 is squeezed by the outer wall of the annular flange 101 again, pulling the arc slide 105 to move away from the outer sleeve 88. At this time, the third spring telescopic rod 104 is compressed again, and the device is reset.

[0064] Finally, the liquefied gas metal bottle whose orientation has been adjusted is inflated by the inflator 7, and then the liquefied gas metal bottle is placed in water to observe whether there are bubbles.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A conveying device for detecting the air tightness of a liquefied gas metal cylinder, comprising a conveying platform (1), characterized in that: The outer side of the conveying platform (1) is fixedly connected to a support platform (2), a telescopic support rod (3) is fixedly connected to the support platform (2), and a high-definition camera (4) is installed on the top surface of the telescopic support rod (3); A folding support rod (5) is installed on the side of the telescopic support rod (3), and a barcode scanning gun (6) is installed on the end of the folding support rod (5) away from the telescopic support rod (3); An inflator (7) is installed on the support platform (2), a positioning mechanism (8) is fixedly connected to the top surface of the support platform (2), and the positioning mechanism (8) is on the left side of the inflator (7), and the orientation of the valve opening of the liquefied gas metal bottle transported on the transport platform (1) is adjusted by the positioning mechanism (8); The positioning mechanism (8) comprises a vertical plate (81) fixed on the top surface of the support platform (2), a cross bar (82) fixedly connected to the top of the front surface of the vertical plate (81), a first one-way bearing (83) fixedly connected to the front end of the cross bar (82), a spiral groove rod (84) fixedly inserted into the inner ring of the first one-way bearing (83), a sleeve (85) sleeved on the outer side of the spiral groove rod (84), a convex rod (86) fixedly connected to the inner wall of the sleeve (85), and one end of the convex rod (86) abutting against the spiral groove on the side of the spiral groove rod (84); A plurality of first spring telescopic rods (87) are fixedly connected to the outer wall of the sleeve (85) at equal distances in a ring shape, and the end of the first spring telescopic rod (87) away from the sleeve (85) is cut into an angle. An outer sleeve (88) is sleeved on the outer side of the sleeve (85), and a longitudinal groove (89) is formed on the inner wall of the outer sleeve (88), and the inner wall of the longitudinal groove (89) contacts the end of the first spring telescopic rod (87) away from the sleeve (85). A plurality of longitudinal limiting rods (810) are also fixedly connected to the inner wall of the outer sleeve (88), and the plurality of longitudinal limiting rods (810) are distributed in a ring shape at equal distances. A rotating bearing (811) is fixedly sleeved on the outer side of the sleeve (85), and a limiting protrusion (812) is fixedly connected to the outer ring of the rotating bearing (811), and one end of the limiting protrusion (812) away from the rotating bearing (811) abuts against the inner wall of the outer sleeve (88), and the limiting protrusion (812) is limited by a longitudinal limiting rod (810) to slide up and down on the inner wall of the outer sleeve (88); A spring (814) is sleeved on the lower end of the outer wall of the sleeve (85), one end of the spring (814) is fixed on the outer wall of the sleeve (85), and a rotating tube (815) is fixed on the other end of the spring (814), the rotating tube (815) is rotated and sleeved on the bottom end of the outer side of the sleeve (85), and a connecting rod (816) is fixedly connected to the top end of the rotating tube (815), and the upper end of the connecting rod (816) is fixed on the bottom end of the limiting protrusion (812); A second spring telescopic rod (817) is fixedly connected to the outer wall of the rotating tube (815); a connecting bearing (813) is fixedly connected to the upper end of the second spring telescopic rod (817); and the connecting bearing (813) is fixed to the lower end surface of the outer sleeve (88); An inner support mechanism (9) is provided on the outer side of the rotating tube (815), the inner support mechanism (9) comprising six longitudinal grooves (91) formed on the bottom of the outer wall of the rotating tube (815), a first spring telescopic plate (92) being fixedly connected in the longitudinal groove (91), a second spring telescopic plate (93) being hinged at the lower end of the first spring telescopic plate (92), a support plate (94) being hinged at the lower end of the second spring telescopic plate (93), four hinged rods (95) being hinged on the support plate (94), the four hinged rods (95) being arranged parallel to each other, and one end of the four hinged rods (95) away from the support plate (94) being hinged on the outer wall of the rotating tube (815); A limiting mechanism (10) is provided on the outer side of the outer sleeve (88), the limiting mechanism (10) comprising an annular flange (101) fixedly sleeved on the outer wall of the outer sleeve (88), six spring telescopic tubes (102) being provided on the lower side of the annular flange (101), the six spring telescopic tubes (102) being fixed in an annular shape on the outer wall of the outer sleeve (88) at equal distances, the upper ends of the six spring telescopic tubes (102) being fixedly connected to a hollow disc (103), and the hollow disc (103) ) is slidably arranged on the outer wall of the outer sleeve (88), two third spring telescopic rods (104) arranged transversely are fixedly connected to the bottom end of the hollow disc (103), an arc-shaped slideway (105) is fixedly connected to one end of the third spring telescopic rod (104) away from the hollow disc (103), a C-shaped push rod (106) is fixedly connected to the arc-shaped slideway (105), and one end of the C-shaped push rod (106) away from the arc-shaped slideway (105) abuts against the outer wall of the outer sleeve (88); The inner wall of the arc-shaped slideway (105) is provided with an inner arc-shaped tooth plate (107) and an outer arc-shaped tooth plate (1014) for sliding movement at an upper limit position. The inner arc-shaped tooth plate (107) and the outer arc-shaped tooth plate (1014) are hingedly connected to the opposite ends of each of the fourth spring telescopic rod (109). One end of the fourth spring telescopic rod (109) is hingedly connected to the bottom surface of the inner wall of the arc-shaped slideway (105). 1014) are meshed with a hollow gear (108), a penetration rod (1015) is passed through the hollow gear (108), an L-shaped clamping rod (1010) is fixedly connected to the upper end of the penetration rod (1015), and the end of the L-shaped clamping rod (1010) away from the penetration rod (1015) is conical, and the end of the L-shaped clamping rod (1010) away from the penetration rod (1015) abuts against the outer wall of the hollow gear (108); The lower end of the through rod (1015) extends to the lower side of the arc-shaped slideway (105) and is fixedly connected to a compression spring (1011), and the upper end of the compression spring (1011) is fixed to the lower end surface of the arc-shaped slideway (105); A contact plate (1012) is hingedly connected to the ends of the inner arc-shaped tooth plate (107) and the outer arc-shaped tooth plate (1014) opposite to each other, and a return spring telescopic rod (1013) is hingedly connected to the two return spring telescopic rods (1013), wherein one return spring telescopic rod (1013) is hingedly connected to the inner arc-shaped tooth plate (107), and the other return spring telescopic rod (1013) is hingedly connected to the outer arc-shaped tooth plate (1014); A cylinder (11) is fixedly connected to the outer side of the outer sleeve (88), and the cylinder (11) is fixed to the bottom surface of the cross bar (82).

2. The conveying device for detecting the air tightness of a liquefied gas metal cylinder according to claim 1, characterized in that: The top end of the longitudinal limiting rod (810) is a curved surface.

3. The method for using the conveying device for detecting the air tightness of a liquefied gas metal cylinder according to claim 1, characterized in that: The steps include: S1: The liquefied gas metal bottle is transported to the right by the transport platform (1). When the liquefied gas metal bottle moves to the front side of the vertical plate (81), the cylinder (11) drives the rotating tube (815) and the sleeve (85) to move upward, causing the protruding rod (86) inside the sleeve (85) to slide upward in the spiral groove of the spiral groove rod (84) and rotate clockwise, thereby tightening the mainspring (814); S2: Then, the cylinder (11) drives the outer sleeve (88) to move downward and insert into the arc-shaped notch handle at the upper end of the liquefied gas metal bottle, driving the lower end surface of the hollow disc (103) to abut against the arc-shaped notch handle on the top surface of the liquefied gas metal bottle, and at this time, the lower end surface of the rotating tube (815) abuts against the top surface of the liquefied gas metal bottle; Then, the cylinder (11) continues to extend, so that the annular flange (101) moves downward along with the outer sleeve (88) and separates from one end of the C-shaped push rod (106) on the hollow disc (103). At this time, the arc slide (105) drives the arc slide (105) to slide under the action of the reset force of the third spring telescopic rod (104), so that the two abutment plates (1012) on the arc slide (105) both abut against the outer wall of the arc-shaped notched handle on the top surface of the liquefied gas metal bottle; S3: Then, as the outer sleeve (88) continues to move downward, the second spring telescopic plate (93) is pushed to deflect, thereby pushing the support plate (94) to move and contact the inner wall of the arc-shaped notch handle on the top surface of the liquefied gas metal bottle. The outer sleeve (88) continues to move downward, driving the longitudinal limit rod (810) inside the outer sleeve (88) to move downward synchronously, releasing the limiting force of the longitudinal limit rod (810) on the limiting protrusion (812). At this time, the rotating tube (815) rotates clockwise under the action of the winding force released by the spring (814), so that the support plate (94) drives the liquefied gas metal bottle to rotate; S4: During the rotation of the liquefied gas metal bottle, when the arc notch of the arc notch handle on the liquefied gas metal bottle is facing the arc-shaped slideway (105), the two abutment plates (1012) on the arc-shaped slideway (105) are inserted into the arc-shaped opening of the arc-shaped notch handle under the action of the third spring telescopic rod (104), thereby limiting its continued rotation. Then, the cylinder (11) contracts, driving the outer sleeve (88) to move upward and reset, thereby ensuring that the air inlet valve of the liquefied gas metal bottle is placed on the conveying platform (1) facing left.

Images