Automatic patrol equipment for helium leakage

Abstract

The invention relates to the technical field of gas detection equipment, and discloses helium leakage automatic patrol equipment, which comprises a vertical reciprocating driving device, a first crawling device, a second crawling device, a helium detection device, a first rotary driver and a controller, through the first crawling device and the second crawling device, mutual crawling work of the helium detection device between two helium cylinders is achieved, the helium detection device can walk back and forth among multiple groups of helium cylinders and detect the helium cylinders, the detection precision is high, and the efficiency is high; furthermore, the helium detection device can be automatically changed according to the diameter of the currently detected helium tank, so that the detection precision is ensured, and the required detection mode can be switched according to the detection requirement.

Description

Technical Field

[0001] The invention relates to the technical field of gas detection equipment, and in particular to an automatic helium leakage inspection device. Background Art

[0002] Helium is an inert gas. During the storage period in the cylinder, due to its small atomic size, helium is relatively easy to leak. If a large amount of helium is inhaled, it will cause the human body to lack oxygen, resulting in hypoxia. Mild symptoms include difficulty breathing, lack of concentration, fatigue, irritability, chest tightness, shortness of breath, nausea and vomiting. Severe patients will experience coma, convulsions and other symptoms. If helium is inhaled directly from a high-pressure cylinder, its high flow rate will seriously damage the lung tissue and cause serious lung diseases. If it is a small amount, long-term inhalation of helium may cause brain damage, and even death in severe cases. Therefore, the storage of helium is very important. Inspection of storage sources is quite necessary, especially in helium production plants. Helium cylinders filled with helium are arranged vertically in the factory. There are a large number of them and in order to save space, they are mostly stored in close proximity. If manual inspection is performed, it is necessary to manually check them one by one. Moreover, since the helium cylinders are placed in close proximity, it is not easy for personnel to pass through them, and handheld detection equipment can easily cause cylinders to fall over. Not only is the labor intensity high, but once a helium source leaks, there will be problems such as inadvertent inhalation of helium and physical discomfort. Moreover, because it is necessary to check them one by one and it is impossible to accurately determine the leakage point, the inspection personnel need to stay in the helium workshop for a long time, which is very dangerous. The inspection is difficult.

[0003] The prior art discloses an airtight detection device for a nitrogen storage gas cylinder in the technical field of airtight detection devices, comprising a base, a top plate, a cylinder, a detection part, a slot, and a fixed seat. A piston is arranged in the fixed seat, and a sliding cavity for the piston to engage and can slide freely horizontally is arranged in the fixed seat. An air inlet connected to the sliding cavity is arranged on the inner wall of the slot. A detection rod is coaxially fixed to the piston, and the detection rod passes through the fixed seat and can slide freely horizontally. A plurality of scale lines are arranged at one end away from the piston. When a leak occurs at the mouth of the gas cylinder, the leaked gas will accumulate in the slot and enter the sliding cavity, thereby pushing the piston to move. By observing the change of the scale lines flush with the end face of the fixed seat, the airtightness of the gas cylinder can be visually detected. By setting a bottle clamping assembly, the gas cylinder can be reliably clamped, so that when the detection part contacts the gas cylinder, the gas cylinder will not fall over. The prior art has the problem that when the gas leakage is low, the piston may not be pushed or it takes a long time for the piston to accumulate before it moves, and the detection accuracy is low. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic helium leakage inspection device to improve the detection accuracy and efficiency; and to achieve the purpose of switching the required detection mode according to the detection requirements.

[0005] In order to achieve the above-mentioned object, the present invention provides an automatic helium leakage inspection device, comprising: a vertical reciprocating drive device, a first crawling device, a second crawling device, a helium detection device, a first rotation driver and a controller, wherein the first crawling device and the second crawling device are respectively arranged on opposite sides of the vertical reciprocating drive device, the first crawling device and the second crawling device are used to crawl between a first helium cylinder and a second helium cylinder, the helium detection device is connected to the upper end of the vertical reciprocating drive device, the first rotation driver is fixedly arranged on one side of the top of the vertical reciprocating drive, the output end of the first rotation driver is rotatably connected to the helium detection device and is used to drive the helium detection device to move between the first helium cylinder and the second helium cylinder, and the output end of the controller is electrically connected to the vertical reciprocating drive device, the first crawling device, the second crawling device, the helium detection device and the first rotation driver.

[0006] Preferably, the helium detection device includes a column, which is coaxially fixed to the driving end of the vertical reciprocating driver through a bearing seat; a first guide rod is also vertically arranged on one side of the bearing seat, and a guide groove is provided on the side wall of the vertical reciprocating driver, and the first guide rod is slidably connected to the guide groove.

[0007] Preferably, the helium detection device also includes an arc guide frame, which is telescopically arranged on the top of the column through a telescopic plate arranged on one side, the length direction of the telescopic plate is perpendicular to the axial direction of the vertical reciprocating drive, the column is slidably matched with the telescopic plate through a slot fixed on the top, and a locking knob is threadedly arranged on the slot to limit the telescopic plate; the adaptive detection module is movably arranged in the arc guide frame.

[0008] Preferably, the adaptive detection module includes a main adjustment module and a secondary adjustment module, the main adjustment module is coaxially slidably arranged in an arc-shaped guide frame, the main adjustment module is a hollow arc-shaped frame with openings at both ends, the first semi-toothed ring is coaxially fixedly arranged on one side of the main adjustment module and is arranged flush with the end of the main adjustment module, the second rotation driver is fixedly arranged on one side of the arc-shaped guide frame through a second mounting frame, the driving end of the second rotation driver is transmission connected with the first semi-toothed ring, the secondary adjustment module is coaxially slidably arranged in the main adjustment module, the side wall of the secondary adjustment module is also coaxially fixedly provided with a second semi-toothed ring and is arranged flush with the end of the secondary adjustment module, the third rotation driver is fixedly arranged on one side of the end of the main adjustment module through a third mounting frame, the driving end of the third rotation driver is transmission connected with the second semi-toothed ring, and the inner walls of the main adjustment module and the secondary adjustment module are also respectively provided with helium detection elements.

[0009] Preferably, the helium detection element includes a first suction strip and a second suction strip, the first suction strip and the second suction strip are flexibly attached to the inner walls of the main adjustment module and the auxiliary adjustment module respectively, the helium detector is fixedly arranged on one side of the vertical reciprocating drive, and the helium detector is connected to the first suction strip and the second suction strip by a flexible tube.

[0010] Preferably, the second rotary driver comprises a first servo motor and a first driving gear, the first servo motor is fixedly disposed on one side of the arc-shaped guide frame via the second mounting frame, and the first driving gear is coaxially fixedly disposed on an output end of the first servo motor.

[0011] Preferably, an infrared sensor is fixedly provided on one side of the arc guide frame, and the infrared sensor is fixedly provided on the upper surface of the arc guide frame through a connecting frame with the detection end facing the center of the helium detection device, and the signal output end of the infrared sensor is connected to the input end of the controller.

[0012] Preferably, the vertical reciprocating drive includes a fixed shell and a first electric push rod vertically arranged in the fixed shell, the output end of the first electric push rod is connected to the column, and the bearing seat is installed on the top of the fixed shell.

[0013] Preferably, the first rotary driver includes a second servo motor, which is fixed vertically on one side of the bearing seat by a first mounting frame and the output shaft of the second servo motor faces the top of the column, the driven gear is coaxially sleeved on the column, and the second driving gear is coaxially sleeved on the output end of the second servo motor and meshes with the driven gear.

[0014] Preferably, the first crawling device includes a support frame, a first upper crawling module and a first lower crawling module, the first upper crawling module includes a first horizontal reciprocating drive and a first crawling element, the support frame is vertically arranged on the outside of the vertical reciprocating drive, the first horizontal reciprocating drive is horizontally fixedly arranged on the support frame and close to the upper end of the support frame, the first crawling element is mirror-fixedly arranged at both ends of the horizontal reciprocating drive, the first lower crawling module is horizontally fixedly arranged on the support frame and close to the lower end of the support frame, and the first lower crawling module and the first upper crawling module have the same structure.

[0015] Preferably, the first crawling element includes a mounting plate, a first clamping unit and a rotary drive unit, the mounting plate is vertically arranged at the output end of the first horizontal reciprocating drive in a vertical state, a second guide rod is also vertically arranged on a side of the mounting plate close to the support frame, and the rod portion of the second guide rod passes through the support frame and is slidably connected to the support frame, the first clamping unit is vertically arranged on the outside of the mounting plate and the clamping end of the first clamping unit passes through the mounting plate and is arranged toward the first helium cylinder, the rotary drive unit is vertically arranged on the outside of the mounting plate and the driving end of the rotary drive unit passes through the mounting plate and is arranged toward the first helium cylinder, and the rotary drive unit is located directly below the first clamping unit.

[0016] Preferably, the first clamping unit includes a third electric push rod and a V-shaped frame, the third electric push rod is vertically arranged on the outside of the mounting plate and the output shaft of the third electric push rod passes through the mounting plate and is arranged toward the helium cylinder, the V-shaped frame is horizontally fixed to the driving end of the third electric push rod, and both sides of the V-shaped frame are respectively penetrated by openings and clamping wheels vertically hingedly arranged in the openings.

[0017] Preferably, the rotary drive unit includes a second electric push rod, an articulated frame vertically fixed to the driving end of the second electric push rod, and a friction wheel, the friction wheel is hinged at the end of the articulated frame, and a third servo motor for driving the friction wheel to rotate is also fixedly arranged on the lower surface of the articulated frame.

[0018] Preferably, it further comprises a limiting seat, and the first helium cylinder and the second helium cylinder are both located on the limiting seat.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes the work of the helium detection device crawling mutually between two helium cylinders through the first crawling device and the second crawling device, so that the helium detection device can move back and forth between multiple groups of helium cylinders and detect them, with high detection accuracy and high efficiency; Furthermore, the helium detection device can automatically change according to the diameter of the helium cylinder currently being detected, thereby ensuring the detection accuracy and switching the required detection mode according to the detection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 2 is a schematic diagram of the three-dimensional structure of an automatic helium leakage inspection device according to an embodiment of the present invention; Figure 2 is a top view schematic diagram of the three-dimensional structure of the automatic helium leakage inspection device according to an embodiment of the present invention; Figure 3 This is a partial enlarged view of point A of the automatic helium leak inspection device according to an embodiment of the present invention; Figure 4 is a side view of the automatic helium leak inspection device according to an embodiment of the present invention without the second helium cylinder; Figure 5 is a three-dimensional schematic diagram of a vertical reciprocating drive and a helium detection device according to an embodiment of the present invention; Figure 6 This is a partial enlarged view of position B of the automatic helium leak inspection device according to an embodiment of the present invention; Figure 7 is a three-dimensional schematic diagram of a helium detection device according to an embodiment of the present invention; Figure 8 is a schematic diagram of an exploded three-dimensional structure of a helium detection device according to an embodiment of the present invention; Fig. 9 is a three-dimensional schematic diagram of a partial structure of a first crawling device according to an embodiment of the present invention; Fig.10 It is a three-dimensional schematic diagram of the partial structure of the first crawling device from another angle according to an embodiment of the present invention.

[0021] In the figure, 1, vertical reciprocating drive; 11, guide groove; 12, fixed shell; 13, first electric push rod; 2, first crawling device; 21, support frame; 22, first upper crawling module; 221, first horizontal reciprocating drive; 222, first crawling element; 2221, mounting plate; 2222, second guide rod; 223, first clamping unit; 2231, third electric push rod; 2232, V-shaped frame; 2233, clamping wheel; 224, rotary drive unit; 2241, second electric push rod; 2242, third servo motor; 2243, articulated frame; 2244, friction wheel; 23, first lower crawling module; 3, second crawling device; 4, helium detection device; 41, first helium bottle; 42, second helium bottle; 43, column; 431, slot; 432, locking knob; 44, bearing seat; 441, first guide rod; 45, arc guide frame; 451, telescopic plate; 452, infrared sensor; 453, connecting frame; 454, adaptive detection module; 4541, main adjustment module; 4542, auxiliary adjustment module; 4543, first half gear ring; 4544, second rotation driver; 45441, first servo motor; 45442, first drive gear; 4545, second mounting frame; 4546, second half gear ring; 4547, third mounting frame; 4548, third rotation driver; 4549, helium detection element; 45491, first suction strip; 45492, second suction strip; 45493, helium detector; 45494, flexible tube; 5, first rotation driver; 51, second servo motor; 52, first mounting frame; 53, second drive gear; 54, driven gear; 6, limit seat. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0026] Embodiment 1 like Figures 1 to 10 As shown, an automatic helium leakage inspection device according to a preferred embodiment of the present invention comprises: a vertical reciprocating drive device 1, a first crawling device 2, a second crawling device 3, a helium detection device 4, a first rotary driver 5 and a controller, wherein the first crawling device 2 and the second crawling device 3 are respectively arranged on opposite sides of the vertical reciprocating drive device 1, and the first crawling device 2 and the second crawling device 3 both include a front crawling end and a rear crawling end, the first crawling device 2 and the second crawling device 3 are used to crawl between a first helium cylinder 41 and a second helium cylinder 42, the helium detection device 4 is connected to the upper end of the vertical reciprocating drive device 1, the first rotary driver 5 is fixedly arranged on one side of the top of the vertical reciprocating drive 1, the output end of the first rotary driver 5 is rotatably connected to the helium detection device 4 and is used to drive the helium detection device 4 to move between the first helium cylinder 41 and the second helium cylinder 42, and the output end of the controller is electrically connected to the vertical reciprocating drive device 1, the first crawling device 2, the second crawling device 3, the helium detection device 4 and the first rotary driver 5.

[0027] In the working state, when it is necessary to conduct a leakage test on the helium cylinder, the staff first places the detection equipment between the two groups of helium cylinders, and then first drives the first crawling device 2 and the second crawling device 3 to move so that the adjacent front crawling ends of the first crawling device 2 and the second crawling device 3 are limited and fixed outside the first helium cylinder 41, and at the same time, the rear crawling ends of the first crawling device 2 and the second crawling device 3 are set toward the second helium cylinder 42; when the detection setting is limited outside the first helium cylinder 41, the helium detection device 4 is driven to detect helium at the bottle mouth of the helium cylinder, and at the same time, the vertical reciprocating drive 1 is coordinated to move vertically back and forth at the bottle mouth of the first helium cylinder 41, so as to realize a comprehensive detection of the bottle mouth of the first helium cylinder 41. When the first helium cylinder 41 needs to be transferred to the second helium cylinder 42 after the detection is completed, the rear ends of the first crawling device 2 and the second crawling device 3 are The crawling end moves toward the second helium bottle 42 and is clamped outside the second helium bottle 42; when the rear crawling ends of the first crawling device 2 and the second crawling device 3 are clamped outside the second helium bottle 42, the front crawling ends of the first crawling device 2 and the second crawling device 3 synchronously release the first helium bottle 41, and rotate 180 degrees around the axis of the second helium bottle 42 driven by the rear crawling ends of the first crawling device 2 and the second crawling device 3 until the front crawling ends of the first crawling device 2 and the second crawling device 3 are horizontally arranged toward the third helium bottle, and then the helium detection device 4 is repeatedly operated to detect the second helium bottle 42, and this cycle is repeated until the detection is completed. The rotation angles of the first crawling device 2 and the second crawling device 3 are precisely controlled by the controller, and can also be assisted by an external infrared detection device; the second crawling device 3 and the first crawling device 2 have the same structure.

[0028] Embodiment 2 The difference between this embodiment and the first embodiment is that Figure 5 and Figure 6 As shown, the helium detection device 4 includes a column 43, which is coaxially fixed to the driving end of the vertical reciprocating driver 1 through a bearing seat 44; a first guide rod 441 is also vertically arranged on one side of the bearing seat 44, and a guide groove 11 is arranged on the side wall of the vertical reciprocating driver 1, and the first guide rod 441 is slidably connected to the guide groove 11.

[0029] The helium detection device 4 also includes an arc guide frame 45, a telescopic plate 451 is provided on one side of the arc guide frame 45, the length direction of the telescopic plate 451 is perpendicular to the axial direction of the vertical reciprocating driver 1, and the telescopic plate 451 is telescopically arranged on the top of the column 43, the column 43 is slidably connected to the telescopic plate 451 through a slot 431 fixed on the top, the locking knob 432 is screwed on the slot 431 to limit the telescopic plate 451, and the adaptive detection module 454 is movably arranged in the arc guide frame 45.

[0030] In the working state, the arc guide frame 45 is telescopically arranged in the slot 431 at the top of the column 43 through the telescopic plate 451 vertically arranged on one side. When it is necessary to adjust the distance between the adaptive detection module 454 and the vertical reciprocating driver 1, the staff can loosen the locking knob 432 and then hold the adaptive detection module 454 to pull radially outward. After the adjustment is completed, the locking knob 432 can be tightened again; the first rotary driver 5 is fixedly arranged on one side of the bearing seat 44 to drive the adaptive detection module 454 to rotate axially, thereby realizing the detection position of the adaptive detection module 454 to detect between the first helium cylinder 41 and the second helium cylinder 42.

[0031] like Figure 7 and Figure 8 As shown, the adaptive detection module 454 includes a main adjustment module 4541 and a sub-adjustment module 4542. The main adjustment module 4541 is coaxially slidably arranged in the arc guide frame 45. The main adjustment module 4541 is a hollow arc frame with two ends opened. The first half gear ring 4543 is coaxially fixedly arranged on one side of the main adjustment module 4541 and is flush with the end of the main adjustment module 4541. The second rotation driver 4544 is fixedly arranged on one side of the arc guide frame 45 through the second mounting frame 4545. The driving end of the second rotation driver 4544 is connected to the first half gear ring. 4543 is connected by transmission, the auxiliary adjustment module 4542 is coaxially slidably arranged in the main adjustment module 4541, the side wall of the auxiliary adjustment module 4542 is also coaxially fixed with a second half toothed ring 4546 and is arranged flush with the end of the auxiliary adjustment module 4542, the third rotation driver 4548 is fixedly arranged on one side of the end of the main adjustment module 4541 through a third mounting frame 4547, the driving end of the third rotation driver is connected by transmission to the second half toothed ring 4546, and the inner walls of the main adjustment module 4541 and the auxiliary adjustment module 4542 are also respectively provided with helium detection elements 4549.

[0032] The helium detection element 4549 includes a first suction strip 45491 and a second suction strip 45492, and the first suction strip 45491 and the second suction strip 45492 are flexibly attached to the inner walls of the main adjustment module 4541 and the auxiliary adjustment module 4542 respectively. The helium detector 45493 is fixedly arranged on one side of the vertical reciprocating drive 1, and the helium detector 45493 is connected to the first suction strip 45491 and the second suction strip 45492 by a flexible tube 45494.

[0033] When it is necessary to detect helium, after the main adjustment module 4541 and the auxiliary adjustment module 4542 adjust their corresponding postures, the helium detector 45493 works to extract air and transmit it to the helium detector 45493, and then analyzes it. Since the helium detector 45493 is connected with the first suction bar 45491 and the second suction bar 45492 through the flexible tube 45494, the detection gas source of the helium detector 45493 mainly comes from the package range of the main adjustment module 4541 and the auxiliary adjustment module 4542; once a helium leak occurs within the package range and is detected by the helium detector 45493, the helium detector 45493 will sound a buzzer alarm and transmit it to the control end to notify the staff of the helium leak, so that the leakage point can be repaired in time.

[0034] like Figure 8 As shown, the second rotation driver 4544 includes a first servo motor 45441 and a first driving gear 45442 . The first servo motor 45441 is fixedly arranged on one side of the arc guide frame 45 through a second mounting frame 4545 , and the first driving gear 45442 is coaxially fixedly arranged on the output end of the first servo motor 45441 .

[0035] In the working state, when the helium cylinder needs to be inspected, the adaptive detection module 454 is axially located to the detection height under the drive of the vertical reciprocating driver 1, and then the external power supply is connected to drive the third rotary driver to drive the auxiliary adjustment module 4542 to rotate along the axis of the helium cylinder, until the auxiliary adjustment module 4542 is driven by the third rotary driver to extend from one end of the main adjustment module 4541 and move toward the other end of the main adjustment module 4541 to enclose a circle, presenting a fully enclosed posture. When the adaptive detection module 454 is in a state of being fully enclosed, the auxiliary adjustment module 4542 is in a state of being fully enclosed. When the third rotary driver is adjusted to the fully enclosed posture, the helium detection element 4549 is synchronously driven to move in the suction posture. At this time, it moves back and forth along the axis of the helium bottle at the mouth of the helium bottle under the drive of the vertical reciprocating driver 1, and reciprocating suction detection is performed on the mouth of the helium bottle, thereby completing the helium leakage detection work; the third rotary driver has the same structure as the second rotary driver; the second rotary driver is composed of a first servo motor 45441 and a first driving gear 45442 coaxially fixedly arranged at the output end of the first servo motor 45441.

[0036] like Figure 7 As shown, an infrared sensor 452 is fixedly arranged on one side of the arc guide frame 45. The infrared sensor 452 is fixedly arranged on the upper surface of the arc guide frame 45 through a connecting frame 453 and the detection end faces the center of the helium detection device 4. The signal output end of the infrared sensor 452 is connected to the input end of the controller.

[0037] In the working state, the infrared sensor 452 is used to detect the apex of the second helium cylinder 42 through the infrared sensor 452 when the position of the helium detection device 4 is transferred from the first helium cylinder 41 to the second helium cylinder 42. The infrared sensor 452 detects the apex of the second helium cylinder 42 through the infrared sensor 452 during the process of the helium detection device 4 being downwardly mounted from the top of the second helium cylinder 42 under the drive of the vertical reciprocating driver 1. The signal detected by the infrared sensor 452 is sent to the controller, and the controller controls the detection device 4 to move downward under the drive of the vertical reciprocating driver 1, thereby ensuring that when the helium detection device 4 moves downward under the drive of the vertical reciprocating driver 1, the vertical reciprocating driver 1 learns the current apex of the helium cylinder and calculates the downward movement distance from the apex, thereby ensuring that the helium detection device 4 can be driven by the vertical reciprocating driver 1 and can be lowered to the required detection height each time.

[0038] The rest of the structure of this embodiment is the same as that of the first embodiment and will not be described in detail here.

[0039] Embodiment 3 The difference between this embodiment and the second embodiment is that Figure 5 As shown, the vertical reciprocating drive 1 includes a fixed housing 12 and a first electric push rod 13 vertically fixed in the fixed housing 12 , the output end of the first electric push rod 13 is connected to the column 43 , and the bearing seat 44 is installed on the top of the fixed housing 12 .

[0040] In the working state, the vertical reciprocating drive of the helium detection device 4 is realized by driving the first electric push rod 13 .

[0041] like Figure 6 As shown, the first rotary driver 5 includes a second servo motor 51, which is fixedly arranged on one side of the bearing seat 44 in a vertical state through a first mounting frame 52, and the output shaft of the second servo motor 51 faces the top of the column 43, and the driven gear 54 is coaxially sleeved on the column 43, and the second driving gear 53 is coaxially sleeved on the output end of the second servo motor 51 and meshes with the driven gear 54.

[0042] In the working state, when it is necessary to drive the helium detection device 4 to rotate and reverse, firstly, an external power supply is connected to drive the second servo motor 51 to operate, and the second servo motor 51 drives the second driving gear 53 of the output shaft to rotate, and the second driving gear 53 drives the driven gear 54 meshing with itself to rotate under the rotation, and finally the driven gear 54 drives the column 43 to rotate, thereby realizing the work of driving the helium detection device 4 to rotate 180 degrees and switching between the first helium cylinder 41 and the second helium cylinder 42.

[0043] The rest of the structure of this embodiment is the same as that of the second embodiment and will not be described in detail here.

[0044] Embodiment 4 The difference between this embodiment and the third embodiment is that Figure 4 , Fig. 9 and Fig.10 As shown, the first crawling device 2 includes a support frame 21, a first upper crawling module 22 and a first lower crawling module 23. The first upper crawling module 22 includes a first horizontal reciprocating drive 221 and a first crawling element 222. The support frame 21 is vertically arranged on the outside of the vertical reciprocating drive 1. The first horizontal reciprocating drive 221 is horizontally fixedly arranged on the support frame 21 and close to the upper end of the support frame 21. The first crawling element 222 is mirror-fixed at both ends of the horizontal reciprocating drive 221. The first lower crawling module 23 is horizontally fixedly arranged on the support frame 21 and close to the lower end of the support frame 21. The first lower crawling module 23 and the first upper crawling module 22 have the same structure.

[0045] In the working state, when it is necessary to switch the detection setting between the first helium cylinder 41 and the second helium cylinder 42, firstly, the external power supply is connected to synchronously drive the first upper crawling module 22 and the second upper crawling module in the first crawling device 2 and the second crawling device 3 to move, and the first helium cylinder 41 is clamped by the first crawling element 222 and the second crawling element arranged close to the first helium cylinder 41, so that the detection device can be clamped on one side of the first helium cylinder 41 in a vertical state, so as to realize the leakage detection of the first helium cylinder 41 by the detection device. When it is necessary to transfer the detection setting to the outside of the second helium cylinder 42, the external power supply is connected to synchronously drive the first lower crawling module 23 and the second lower crawling module 24 in the first crawling device 2 and the second crawling device 3. The lower crawling module is in action, and the first horizontal reciprocating driver 221 and the second reciprocating driver provided in the first lower crawling module 23 and the second lower crawling module are driven to drive the first crawling element 222 and the second crawling element close to the second helium bottle 42 to clamp the second helium bottle 42, and then release the first crawling element 222 and the second crawling element that clamp the first helium bottle 41, and drive the first crawling element 222 and the second crawling element that clamp the second helium bottle 42 to rotate around the axial direction of the second helium bottle 42, so that the first crawling element 222 and the second crawling element that originally clamped the first helium bottle 41 rotate and are arranged toward the third helium bottle, and wait for the second helium bottle 42 to be detected and then move toward the third helium bottle.

[0046] like Figure 4 , Fig. 9 and Fig.10As shown, the first crawling element 222 includes a mounting plate 2221, a first clamping unit 223 and a rotary drive unit 224. The mounting plate 2221 is vertically arranged at the output end of the first horizontal reciprocating driver 221. A second guide rod 2222 is also vertically arranged on one side of the mounting plate 2221 close to the support frame 21, and the rod portion of the second guide rod 2222 passes through the support frame 21 and is slidably connected to the support frame 21. The first clamping unit 223 is vertically arranged on the outside of the mounting plate 2221, and the clamping end of the first clamping unit 223 passes through the mounting plate 2221 and is arranged toward the first helium cylinder 41. The rotary drive unit 224 is vertically arranged on the outside of the mounting plate 2221, and the driving end of the rotary drive unit 224 passes through the mounting plate 2221 and is arranged toward the first helium cylinder 41. The rotary drive unit 224 is located directly below the first clamping unit 223.

[0047] The rotation drive unit 224 includes a second electric push rod 2241, an articulated frame 2243 vertically fixed on the driving end of the second electric push rod 2241, and a friction wheel 2244. The friction wheel 2244 is hinged at the end of the articulated frame 2243, and a third servo motor 2242 for driving the friction wheel 2244 to rotate is also fixed on the lower surface of the articulated frame 2243.

[0048] In the working state, when the first horizontal reciprocating driver 221 is driven to be located at one side of the first helium cylinder 41 and the first helium cylinder 41 needs to be clamped, it is only necessary to connect the external power supply to drive the first clamping unit 223 to operate, and the clamping end of the first clamping unit 223 extends horizontally toward the first helium cylinder 41 until it hits the side wall of the first helium cylinder 41. When the first clamping unit 223 operates, the second clamping unit of the second upper crawling module in the second crawling device 3 operates synchronously to cooperate with the first clamping unit 223 to clamp the first helium cylinder 41, thereby realizing the work of clamping the detection device to the outside of the first helium cylinder 41. The rotation drive unit 224 is used for rubbing against the outer wall of the first helium cylinder 41 when the detection device is transferred from the first helium cylinder 41 to the second helium cylinder 42, thereby realizing the work of driving the entire detection device to rotate along the axial direction of the helium cylinder. The driving unit 224 includes a second electric push rod 2241 and an articulated frame 2243 vertically fixedly arranged at the driving end of the second electric push rod 2241; the friction wheel 2244 is hingedly arranged at the end of the articulated frame 2243, and a third servo motor 2242 for driving the friction wheel 2244 to rotate is also fixedly arranged on the lower surface of the articulated frame 2243; when it is necessary to drive the detection device to rotate circumferentially along the axis of the helium cylinder, so as to realize the overall rotation of the detection device, firstly, an external power supply is connected to drive the second electric push rod 2241 to move, and the output shaft of the second electric push rod 2241 extends to drive the articulated frame 2243 radially toward the first helium cylinder 41 until the friction force contacts the helium cylinder and stops, and then an external power supply is connected to drive the third servo motor 2242 to drive the friction wheel 2244 to rotate, so as to realize the work of driving the detection device to rotate circumferentially along the axis of the helium cylinder.

[0049] like Fig.10 As shown, the first clamping unit 223 includes a third electric push rod 2231 and a V-shaped frame 2232. The third electric push rod is vertically arranged on the outside of the mounting plate 2221 and the output shaft of the third electric push rod 2231 passes through the mounting plate 2221 and is arranged toward the helium cylinder. The V-shaped frame 2232 is horizontally fixed to the driving end of the third electric push rod 2231. Openings and clamping wheels 2233 vertically hingedly arranged in the openings are respectively penetrated on both sides of the V-shaped frame 2232.

[0050] In the working state, when it is necessary to clamp the helium cylinder so that the detection device can be located at one side of the helium cylinder in a vertical state, the external power supply is first connected to drive the third electric push rod 2231 to move, and the output shaft of the third electric push rod 2231 extends to drive the V-shaped frame 2232 to radially approach the helium cylinder until the clamping wheels 2233 arranged at the openings on both sides of the V-shaped frame 2232 are pressed against the side walls of the helium cylinder and then stop. The clamping wheels 2233 are preferably made of rubber material and because the clamping wheels 2233 are hingedly arranged at the openings in a vertical state, the first clamping unit 223 can rotate circumferentially but will not slide axially. Therefore, when the detection device is rotationally driven and displaced by the rotary drive unit 224, the detection device can rotate circumferentially along the axis of the helium cylinder without sliding along the axial direction of the helium cylinder, thereby ensuring the stability between the detection device and the helium cylinder.

[0051] This embodiment further includes a limiting seat 6 , which can be fixed on the ground or a fixed building, and the first helium cylinder 41 and the second helium cylinder 42 are both fixed on the limiting seat 6 .

[0052] The staff first places the detection equipment between two groups of helium cylinders inserted on the limit seat 6. The limit seat 6 is a fixed seat for limiting the centralized placement of helium cylinders to prevent the helium cylinders from tipping over due to external factors.

[0053] The remaining structures of this embodiment are the same as those of the third embodiment and will not be described in detail here.

[0054] In summary, the embodiment of the present invention provides an automatic helium leak inspection device, which realizes the work of the helium detection device crawling between two helium cylinders through the first crawling device and the second crawling device, so that the helium detection device can move back and forth between multiple groups of helium cylinders and detect them, with high detection accuracy and high efficiency; further, the helium detection device can change automatically according to the diameter of the helium cylinder currently being detected, thereby ensuring the detection accuracy and switching the required detection mode according to the detection requirements.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic helium leak inspection device, characterized in that: include: A vertical reciprocating drive device (1), a first crawling device (2), a second crawling device (3), a helium detection device (4), a first rotary driver (5) and a controller, wherein the first crawling device (2) and the second crawling device (3) are respectively arranged on opposite sides of the vertical reciprocating drive device (1), the first crawling device (2) and the second crawling device (3) are used to crawl between a first helium bottle (41) and a second helium bottle (42), the helium detection device (4) is connected to the upper end of the vertical reciprocating drive device (1), the first rotary driver (5) is fixedly arranged on one side of the top of the vertical reciprocating drive (1), the output end of the first rotary driver (5) is rotatably connected to the helium detection device (4) and is used to drive the helium detection device (4) to move between the first helium bottle (41) and the second helium bottle (42), and the output end of the controller is electrically connected to the vertical reciprocating drive device (1), the first crawling device (2), the second crawling device (3), the helium detection device (4) and the first rotary driver (5).

2. The automatic helium leak inspection device according to claim 1, characterized in that: The helium detection device (4) comprises a column (43), wherein the column (43) is coaxially fixedly arranged on the driving end of the vertical reciprocating driver (1) via a bearing seat (44); a first guide rod (441) is also vertically arranged on one side of the bearing seat (44), a guide groove (11) is provided on the side wall of the vertical reciprocating driver (1), and the first guide rod (441) is slidably connected to the guide groove (11).

3. The automatic helium leak inspection device according to claim 2, characterized in that: The helium detection device (4) further comprises an arc-shaped guide frame (45), wherein the arc-shaped guide frame (45) is telescopically arranged on the top of the column (43) via a telescopic plate (451) arranged on one side, the length direction of the telescopic plate (451) is perpendicular to the axial direction of the vertical reciprocating driver (1), the column (43) is slidably matched with the telescopic plate (451) via a slot (431) fixedly arranged on the top, and a locking knob (432) is screwed on the slot (431) to fix the telescopic plate (451); and an adaptive detection module (454) is movably arranged in the arc-shaped guide frame (45).

4. The automatic helium leak inspection device according to claim 3, characterized in that: The adaptive detection module (454) comprises a main adjustment module (4541) and a secondary adjustment module (4542); the main adjustment module (4541) is coaxially slidably arranged in the arc-shaped guide frame (45); the main adjustment module (4541) is a hollow arc-shaped frame with two ends open; a first half gear ring (4543) is coaxially fixedly arranged on one side of the main adjustment module (4541) and is flush with the end of the main adjustment module (4541); a second rotation driver (4544) is fixedly arranged on one side of the arc-shaped guide frame (45) via a second mounting frame (4545); a driving end of the second rotation driver (4544) is connected to the first half gear ring (4543); 543) transmission connection, the auxiliary adjustment module (4542) is coaxially slidably arranged in the main adjustment module (4541), the side wall of the auxiliary adjustment module (4542) is also coaxially fixedly provided with a second half-toothed ring (4546) and is arranged flush with the end of the auxiliary adjustment module (4542), a third rotation driver (4548) is fixedly arranged on one side of the end of the main adjustment module (4541) through a third mounting frame (4547), the driving end of the third rotation driver is transmission-connected to the second half-toothed ring (4546), and the inner walls of the main adjustment module (4541) and the auxiliary adjustment module (4542) are also respectively provided with helium detection elements (4549).

5. The automatic helium leak inspection device according to claim 4, characterized in that: The helium detection element (4549) comprises a first suction strip (45491) and a second suction strip (45492), wherein the first suction strip (45491) and the second suction strip (45492) are flexibly attached to the inner walls of the main adjustment module (4541) and the auxiliary adjustment module (4542), respectively; a helium detector (45493) is fixedly arranged on one side of the vertical reciprocating drive (1), and the helium detector (45493) is connected to the first suction strip (45491) and the second suction strip (45492) by a flexible tube (45494).

6. The automatic helium leak inspection device according to claim 5, characterized in that: The second rotary driver (4544) comprises a first servo motor (45441) and a first driving gear (45442); the first servo motor (45441) is fixedly arranged on one side of the arc-shaped guide frame (45) via the second mounting frame (4545); and the first driving gear (45442) is coaxially fixedly arranged on the output end of the first servo motor (45441).

7. The automatic helium leak inspection device according to claim 3, characterized in that: An infrared sensor (452) is also fixedly disposed on one side of the arc-shaped guide frame (45); the infrared sensor (452) is fixedly disposed on the upper surface of the arc-shaped guide frame (45) via a connecting frame (453) with a detection end facing the center of the helium detection device (4); and a signal output end of the infrared sensor (452) is connected to an input end of a controller.

8. The automatic helium leak inspection device according to any one of claims 2 to 7, characterized in that: The vertical reciprocating drive (1) comprises a fixed housing (12) and a first electric push rod (13) vertically arranged in the fixed housing (12), the output end of the first electric push rod (13) being connected to the column (43), and the bearing seat (44) being mounted on the top of the fixed housing (12).

9. The automatic helium leak inspection device according to claim 8, characterized in that: The first rotary driver (5) comprises a second servo motor (51), the second servo motor (51) being fixedly arranged on one side of the bearing seat (44) in a vertical state via a first mounting frame (52), and the output shaft of the second servo motor (51) is directed toward the top of the column (43), a driven gear (54) is coaxially sleeved on the column (43), and a second driving gear (53) is coaxially sleeved on the output end of the second servo motor (51) and meshes with the driven gear (54).

10. The automatic helium leak inspection device according to claim 8, characterized in that: The first crawling device (2) comprises a support frame (21), a first upper crawling module (22) and a first lower crawling module (23); the first upper crawling module (22) comprises a first horizontal reciprocating drive (221) and a first crawling element (222); the support frame (21) is vertically arranged on the outer side of the vertical reciprocating drive (1); the first horizontal reciprocating drive (221) is horizontally fixedly arranged on the support frame (21) and close to the upper end of the support frame (21); the first crawling element (222) is mirror-imaged and fixedly arranged at two ends of the horizontal reciprocating drive (221); the first lower crawling module (23) is horizontally fixedly arranged on the support frame (21) and close to the lower end of the support frame (21); the first lower crawling module (23) and the first upper crawling module (22) have the same structure.

11. The automatic helium leak inspection device according to claim 10, characterized in that: The first crawling element (222) comprises a mounting plate (2221), a first clamping unit (223) and a rotation drive unit (224); the mounting plate (2221) is vertically arranged at the output end of the first horizontal reciprocating driver (221); a second guide rod (2222) is vertically arranged on one side of the mounting plate (2221) close to the support frame (21); and a rod portion of the second guide rod (2222) passes through the support frame (21) and is slidably connected to the support frame (21); The first clamping unit (223) is vertically arranged on the outside of the mounting plate (2221), and a clamping end of the first clamping unit (223) passes through the mounting plate (2221) and is arranged toward the first helium bottle (41); the rotation drive unit (224) is vertically arranged on the outside of the mounting plate (2221), and a driving end of the rotation drive unit (224) passes through the mounting plate (2221) and is arranged toward the first helium bottle (41); the rotation drive unit (224) is located directly below the first clamping unit (223).

12. The automatic helium leak inspection device according to claim 11, characterized in that: The first clamping unit (223) comprises a third electric push rod (2231) and a V-shaped frame (2232); the third electric push rod is vertically arranged on the outside of the mounting plate (2221), and the output shaft of the third electric push rod (2231) passes through the mounting plate (2221) and is arranged toward the helium cylinder; the V-shaped frame (2232) is fixedly arranged at the driving end of the third electric push rod (2231) in a horizontal state; and openings and clamping wheels (2233) are respectively penetrated on both sides of the V-shaped frame (2232) and are vertically hingedly arranged in the openings.

13. The automatic helium leak inspection device according to claim 11, characterized in that: The rotation drive unit (224) comprises a second electric push rod (2241), an articulated frame (2243) vertically fixedly arranged at the driving end of the second electric push rod (2241), and a friction wheel (2244); the friction wheel (2244) is hingedly arranged at the end of the articulated frame (2243); and a third servo motor (2242) for driving the friction wheel (2244) to rotate is also fixedly arranged on the lower surface of the articulated frame (2243).

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