Strength detection system for fuel gas stainless steel corrugated pipe production and method thereof

Abstract

The invention relates to the related technical field of corrugated pipe detection, and discloses a strength detection system for fuel gas stainless steel corrugated pipe production and a method thereof.The system comprises a detection box, a fixing plate is arranged in the detection box, a bottom plate is fixedly arranged on the upper side of the fixing plate, a fixing frame is fixedly arranged on the upper side of the bottom plate, and clamping assemblies are arranged on the two side walls of the fixing frame; a corrugated pipe is placed on the clamping assembly, a first plug and a second plug are installed at the two ends of the corrugated pipe, a hose is arranged on the first plug, and a pressure detector is installed on the second plug. The inner wall and the outer wall of the two ends of the corrugated pipe can be subjected to double clamping and fixing effects through the two pairs of first arc-shaped clamping plates and the two pairs of second arc-shaped clamping plates correspondingly; the multiple pairs of clamping grooves are in contact with the convex parts of the outer wall of the corrugated pipe, the multiple pairs of elastic convex blocks are in contact with the grooves in the inner wall of the corrugated pipe, the inner wall and the outer wall of the two ends of the corrugated pipe are subjected to double limiting and fixing effects by utilizing the shape characteristics of the corrugated pipe, and tensile strength detection on the corrugated pipe is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field related to bellows detection, and more specifically, particularly relates to a strength detection system and method for producing gas stainless steel bellows. Background Art

[0002] Gas stainless steel bellows, referred to as gas bellows, is a gas hose used to connect the stove to the natural gas pipeline or liquefied gas cylinder. It is located under the stove and is used to provide gas to the stove for daily cooking. Gas stainless steel bellows is a pipe made of spirally wound thin steel strips with corrugated inner and outer walls. The strength detection system of gas stainless steel bellows usually includes a series of testing equipment and instruments for testing the pressure resistance, impact resistance, air tightness, tensile strength, bending strength and other aspects of the bellows. However, the bellows detection in the prior art has the following defects: In the prior art, when the strength detection system for the production of gas stainless steel bellows performs tensile strength detection on the bellows, due to its shape characteristics, the clamping assembly does not clamp the gas stainless steel bellows firmly enough, and one or both ends of the gas stainless steel bellows may easily slip out of the clamping assembly, thereby affecting the tensile strength detection of the gas stainless steel bellows.

[0003] When the strength testing system for gas stainless steel bellows production is used to test the strength of bellows, it is usually necessary to install sealing valves at both ends of the bellows. After a certain pressure of air is introduced into the bellows sample, the lack of a limiting structure for the sealing valve can easily cause the sealing valve to move in the bellows, thereby affecting the tensile strength test and air tightness test of the gas stainless steel bellows; and because the bellows can be expanded and contracted, when there is a gap on the bellows, the contracted bellows will cause the gap to close, so the sealing of the bellows cannot be detected during the test, thereby affecting the air tightness test of the gas stainless steel bellows.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a strength detection system and method for the production of gas stainless steel bellows are provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0005] The present invention provides a strength detection system and method for producing gas stainless steel bellows, which are used to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the strength detection system and method for producing gas stainless steel bellows of the present invention are achieved by the following specific technical means: A strength detection system for the production of gas stainless steel bellows, comprising a detection box, a fixed plate is fixedly provided in the middle of the interior of the detection box, a bottom plate is fixedly provided on the upper side of the fixed plate, a fixed frame is fixedly provided on the upper side of the bottom plate, clamping assemblies are provided on both side walls of the fixed frame, a bellows is placed on the clamping assembly, a first plug and a second plug are installed at both ends of the bellows, a hose is provided on the first plug, and a pressure detector is installed on the second plug; the clamping assembly comprises two first electric telescopic rods, the two first electric telescopic rods are respectively fixed on the two side walls of the fixed frame, and a disc is fixedly provided on the protruding ends of the two first electric telescopic rods , two first arc-shaped clamping plates are symmetrically slidably provided in the middle of the sides where the two discs are close to each other, and a first hollow elastic member is respectively provided on the sides where each pair of the first arc-shaped clamping plates are away from each other, and a first rubber plate is respectively provided on the sides where each pair of the first hollow elastic members are away from each other, and a plurality of elastic protrusions are arranged at intervals on the sides where each pair of the first rubber plates are away from each other, and a first slider is fixedly provided at one end of each pair of the first arc-shaped clamping plates, and two first sliding grooves are symmetrically provided on one side of each disc, and the two first sliding grooves slide vertically in the two first sliding grooves respectively, and a second hollow elastic member is connected to each other on the sides where each pair of the first sliding grooves are close to each other.

[0007] A further technical solution is that the interior of each of the second hollow elastic parts is respectively connected to the interiors of the two first hollow elastic parts and is provided with a first connecting channel, each of the first connecting channels is located inside the first sliding block, a solenoid valve is installed inside each of the first connecting channels, a fixed ring is fixedly provided on both side walls of the fixed frame, a movable ring is slidably provided on the inner side of the two fixed rings, the inner wall of each movable ring is in a conical structure, a hydraulic chamber is provided inside each of the discs, two piston plates are symmetrically provided vertically slidingly provided inside each of the hydraulic chambers, a first push rod is fixedly provided on the side of each pair of piston plates away from each other, and the ends of each pair of the first push rods away from each other are in sliding contact with the inclined surface of the inner wall of the movable ring, and each of the hydraulic chambers is mutually connected to the interior of the second hollow elastic part and is provided with a second connecting channel.

[0008] A further technical solution is that a guide block is fixedly provided on the side where each pair of piston plates are close to each other, a pressure plate is slidably provided inside each hydraulic chamber, one side of each pressure plate is interconnected with one side of the hydraulic chamber and a first spring is provided, and the side where each pair of guide blocks are close to each other is in sliding contact with the inclined surfaces at both ends of each pressure plate.

[0009] According to a further technical solution, a second electric telescopic rod is respectively installed on both side walls of the fixed frame, and the extended ends of the two second electric telescopic rods are respectively fixedly connected to one side of the two movable rings.

[0010] A further technical solution is that two second arc-shaped clamping plates are symmetrically slidably provided on one side of the two disks close to each other, two second sliding grooves are symmetrically provided on one side of each disk, a second slider is fixedly provided at one end of each pair of the second arc-shaped clamping plates, each pair of the second sliders slide vertically in the two second sliding grooves, one side of each pair of the second sliders is respectively connected to one side of the two second sliding grooves with a second spring, and each pair of the second arc-shaped clamping plates is located radially outside each pair of the first arc-shaped clamping plates.

[0011] According to a further technical solution, a third hollow elastic member is provided on each pair of the second arc-shaped clamping plates on the side close to each other, a second rubber plate is fixed on each pair of the third hollow elastic members on the side close to each other, and a plurality of slots are provided at intervals on each pair of the second rubber plates on the side close to each other.

[0012] A further technical solution is that a sleeve is fixedly provided on the side away from each other of each pair of the second arc-shaped clamping plates, a fourth hollow elastic part is provided inside each pair of the sleeves, a second push rod is fixedly provided on the side away from each other of each pair of the fourth hollow elastic parts, one end of each pair of the second push rods away from each other is in sliding contact with the inner wall inclined surface of the movable ring, the interior of each pair of the fourth hollow elastic parts is connected to the interior of each pair of the third hollow elastic parts, and a third connecting channel is provided, and the outer side of each second push rod is in sliding contact with the inner side of the sleeve.

[0013] A further technical solution is that two box doors are symmetrically rotated on one side of the upper part of the detection box, a display screen and a control panel are installed on the box doors, a fixed block is fixed on the upper side of the fixed frame, a support plate is fixed on the upper side of the fixed block, one end of the hose is connected to the first plug, and the other end of the hose is connected to an external air pump or a water pump.

[0014] A further technical solution is that a vertical plate is fixed on the upper side of the base plate, a third electric telescopic rod is installed on one side of the upper portion of the vertical plate, a movable plate is fixed on the protruding end of the third electric telescopic rod, a fixed rod is fixed on the lower side of the movable plate, a clamping plate is fixed on the lower end of the fixed rod, a camera is installed on one side of the lower portion of the vertical plate, and a pressure gauge is installed on the clamping plate.

[0015] A strength testing method for producing gas stainless steel bellows, comprising the following steps: S1: In the preparation stage, the bellows is installed on the clamping assembly of the detection system to ensure that the bellows is positioned correctly and firmly fixed. At the same time, check whether the various components of the detection system are in normal working condition; S2: In the pressure application stage, open the air source valve and introduce air of a certain pressure into the bellows sample. Then, drive the two ends of the bellows away from each other through the clamping assembly to apply a specified pulling force to the bellows. The pulling force should be determined according to the specifications and test standards of the bellows. S3: Monitoring and recording. During the stretching process, closely observe the deformation of the bellows sample to check for cracks, leakage, or detachment of the joints at both ends. At the same time, record key data during the test, such as tension value, displacement, etc. S4: Maintain the tension. After reaching the specified tension, maintain the tension for a period of time to evaluate the performance of the bellows under continuous tension; S5: Unloading inspection: After unloading the tension, check whether the bellows sample has permanent deformation, cracks or other damage; at the same time, perform an airtightness check to ensure that the bellows still maintains good sealing performance after stretching.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The strength detection system for the production of gas stainless steel bellows of the present invention is provided. Through the arrangement of a movable ring, a first push rod, a piston plate, a second hollow elastic member, a first slider, and a first arc-shaped clamping plate, two second electric telescopic rods are extended to drive the two movable rings to approach each other. The ends of each pair of first push rods that are away from each other are in sliding contact with the inner wall inclined surface of the movable ring. The movable ring moves to push the two first push rods to approach each other. The two first push rods approach each other to drive the two piston plates to approach each other. The two piston plates approach each other to squeeze the solution in the hydraulic cavity through the second connecting channel into the second hollow elastic member. The second hollow elastic member expands to push the two first push rods to approach each other. The two first sliders move away from each other; the two first sliders move away from each other, driving the two first arc-shaped clamping plates to move away from each other, the two first arc-shaped clamping plates move away from each other, driving the two first rubber plates to move away from each other, the two first rubber plates move away from each other and contact the inner wall of one end of the bellows, thereby clamping and fixing the inner wall of one end of the bellows; and the two first rubber plates move away from each other, driving the plurality of pairs of elastic protrusions to move away from each other, so that the plurality of pairs of elastic protrusions respectively enter the inner wall grooves of the bellows to perform limiting and fixing effects, which is conducive to clamping and fixing and limiting and fixing the inner wall of one end of the bellows by the two first rubber plates and the plurality of pairs of elastic protrusions. Then, through the arrangement of the first hollow elastic member, the electromagnetic valve, and the first connecting channel, each pair of first rubber plates move away from each other and contact the inner wall of one end of the bellows, and the two movable rings continue to approach each other, so that the solution in the hydraulic cavity continuously increases and enters the solution in the second hollow elastic member, and the two sides of the second hollow elastic member are supported by the two first sliders, so that the pressure on the two electromagnetic valves continuously increases, so as to facilitate the opening of the electromagnetic valves; the solution in the second hollow elastic member enters the two first hollow elastic members respectively through the two first connecting channels, and the expansion of the two first hollow elastic members further pushes the two first rubber plates away from each other, so as to improve the clamping force on the inner wall of one end of the bellows; and the contact area between the elastic protrusion and the groove on the inner wall of the bellows is expanded, so as to improve the limiting and fixing effect on the inner wall of the bellows. Finally, by setting the pressure plate and the guide block, the two piston plates are brought closer to each other, driving the two guide blocks to be brought closer to each other, and the two ends of the pressure plate are respectively in sliding contact with the inclined surfaces of the two guide blocks on one side that are close to each other, so that under the guiding action of the two guide blocks, the pressure plate slides in the hydraulic cavity, and the amount of solution in the hydraulic cavity squeezed into the second hollow elastic member is increased, so that the solution in the second hollow elastic member enters the two first hollow elastic members, so that the two first hollow elastic members are further expanded to push the two first rubber plates away from each other, and further increase the clamping force of the two first rubber plates on the inner wall of one end of the bellows; and the contact area between the elastic protrusion and the groove on the inner wall of the bellows is expanded, and the limiting and fixing effect on the inner wall of the bellows is further improved, which is beneficial to improving the quality of tensile strength testing of the bellows and preventing the two ends of the bellows from detaching from the clamping assembly.

[0017] The present invention provides a strength detection system for the production of gas stainless steel bellows. By arranging a second arc-shaped clamping plate, a sleeve, a fourth hollow elastic member and a second push rod, two movable rings are brought close to each other, and the ends of each pair of second push rods that are away from each other are in sliding contact with the inner wall inclined surface of the movable ring, so that each pair of second push rods are brought close to each other under the guiding action of the movable ring; the two second push rods are brought close to each other to drive the two fourth hollow elastic members and the second arc-shaped clamping plates to be brought close to each other, and the two second arc-shaped clamping plates are brought close to each other to clamp and fix the outer wall of one end of the bellows, so that the inner wall and the outer wall of the two ends of the bellows are double clamped and fixed by the two pairs of first arc-shaped clamping plates and the two pairs of second arc-shaped clamping plates, respectively, which is beneficial to the tensile strength detection of the bellows. By setting the second rubber plate and the clamping groove, the two second arc clamping plates are brought close to each other to drive the two second rubber plates to be close to each other, and the two second rubber plates are brought close to each other to clamp and fix the outer wall of one end of the bellows; and the two second rubber plates are brought close to each other to drive the several pairs of clamping grooves to be brought close to each other, so that the several pairs of clamping grooves are respectively in contact with the convex parts of the outer wall of one end of the bellows, which is conducive to the contact between the convex parts of the outer wall of the bellows and the clamping grooves, so as to limit and fix the outer wall of one end of the bellows; so as to contact the convex parts of the outer wall of the bellows through the several pairs of clamping grooves, and the several pairs of elastic protrusions are in contact with the grooves of the inner wall of the bellows, and the shape characteristics of the bellows are utilized to perform a double limit and fixation on the inner and outer walls of the two ends of the bellows, which is conducive to improving the quality of tensile strength testing of the bellows and preventing the two ends of the bellows from detaching from the clamping assembly. Finally, through the arrangement of the third hollow elastic member and the third connecting channel, each pair of second rubber plates contacts the outer wall of one end of the bellows, and the two movable rings continue to approach each other, so that each pair of second push rods continue to approach each other; the two second push rods approach each other to squeeze the two fourth hollow elastic members respectively, so that the solutions in the two fourth hollow elastic members enter the two third hollow elastic members respectively through the two third connecting channels, and the expansion of the two third hollow elastic members further pushes the two second rubber plates closer to each other, thereby increasing the clamping force of the two second rubber plates on the outer wall of one end of the bellows; and the contact area between the several pairs of card grooves and the convex parts of the outer wall of the bellows is enlarged, which is conducive to improving the limiting and fixing effect on the outer wall of one end of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is an isometric structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 4 It is an isometric structural schematic diagram of the clamping assembly in the present invention; Figure 5 It is a schematic diagram of the top view of the clamping assembly in the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-section structure at BB in the middle; Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at C in the middle; Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at D in the middle; Fig. 9 for Figure 7 Schematic diagram of the structure of the local enlarged view at E in the middle.

[0021] Description of reference numerals: Detection box 10, display screen 11, control panel 12, box door 13, fixing plate 14, bottom plate 15, fixing frame 16, first electric telescopic rod 17, fixing ring 18, disc 19, first arc-shaped clamping plate 20, first hollow elastic member 21, first rubber plate 22, elastic protrusion 23, movable ring 24, second electric telescopic rod 25, hydraulic chamber 26, first connecting channel 27, solenoid valve 28, piston plate 29, first push rod 30, guide block 31, pressure plate 32, first spring 33, second connecting channel 34, second arc-shaped clamping plate 35, third hollow The fourth hollow elastic member 45, the third connecting channel 46, the fixing block 47, the supporting plate 48, the bellows 49, the vertical plate 50, the third electric telescopic rod 51, the movable plate 52, the fixing rod 53, the clamping plate 54, the pressure gauge 55, the first plug 58, the hose 59, the pressure detector 60, the second plug 61, the camera 62, the second slider 63, and the second hollow elastic member 64. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail 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, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes 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 "connected" and "connection" 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 an indirect connection through an intermediate medium. 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] As attached Figure 1 To Attachment Fig. 9 As shown: The invention provides a strength detection system for producing gas stainless steel bellows.

[0026] See attached Figure 1 To Attachment Fig. 9, including a detection box 10, a fixed plate 14 is fixedly provided in the middle of the detection box 10, a bottom plate 15 is fixedly provided on the upper side of the fixed plate 14, a fixed frame 16 is fixedly provided on the upper side of the bottom plate 15, and a clamping assembly is provided on both side walls of the fixed frame 16, a bellows 49 is placed on the clamping assembly, a first plug 58 and a second plug 61 are installed at both ends of the bellows 49, a hose 59 is provided on the first plug 58, and a pressure detector 60 is installed on the second plug 61; the clamping assembly includes two first electric telescopic rods 17, the two first electric telescopic rods 17 are respectively fixed on the two side walls of the fixed frame 16, and a disc 19 is fixedly provided at the protruding ends of the two first electric telescopic rods 17, and the two discs 19 are mutually Two first arc-shaped clamping plates 20 are symmetrically slidably provided in the middle of the sides close to each other, a first hollow elastic member 21 is provided on the sides away from each other of each pair of first arc-shaped clamping plates 20, a first rubber plate 22 is provided on the sides away from each other of each pair of first hollow elastic members 21, and a plurality of elastic protrusions 23 are provided at intervals on the sides away from each other of each pair of first rubber plates 22, a first slider 39 is fixedly provided at one end of each pair of first arc-shaped clamping plates 20, two first slide grooves 40 are symmetrically provided on one side of each disc 19, and the two first sliders 39 slide vertically in the two first slide grooves 40 respectively, and a second hollow elastic member 64 is connected to each other on the sides close to each other of each pair of first sliders 39.

[0027] Preferably, see Attachment Figure 1 To Attachment Fig. 9 The interior of each second hollow elastic member 64 is respectively connected to the interior of the two first hollow elastic members 21 and is provided with a first connecting channel 27, each first connecting channel 27 is located inside the first slider 39, and a solenoid valve 28 is installed inside each first connecting channel 27. A fixed ring 18 is fixedly provided on the two side walls of the fixed frame 16, and a movable ring 24 is slidably provided on the inner side of the two fixed rings 18. The inner wall of each movable ring 24 is a conical structure, and a hydraulic chamber 26 is provided inside each disk 19. Two piston plates 29 are symmetrically provided vertically slidingly provided inside each hydraulic chamber 26. A first push rod 30 is fixedly provided on the side away from each other of each pair of piston plates 29, and one end of each pair of first push rods 30 away from each other is in sliding contact with the inner wall inclined surface of the movable ring 24. Each hydraulic chamber 26 is connected to the interior of the second hollow elastic member 64 and is provided with a second connecting channel 34.

[0028] Preferably, see Attachment Figure 6 To Attachment Figure 8 A guide block 31 is fixedly provided on the side where each pair of piston plates 29 are close to each other, a pressure plate 32 is slidably provided inside each hydraulic chamber 26, one side of each pressure plate 32 is connected to one side of the hydraulic chamber 26 and is provided with a first spring 33, and the side where each pair of guide blocks 31 are close to each other is in sliding contact with the inclined surfaces at both ends of each pressure plate 32.

[0029] Preferably, see Attachment Figure 4 , Attachment Figure 6 A second electric telescopic rod 25 is respectively installed on the two side walls of the fixed frame 16 , and the extended ends of the two second electric telescopic rods 25 are respectively fixedly connected to one side of the two movable rings 24 .

[0030] Preferably, see Attachment Figure 7 , Attachment Fig. 9 Two second arc-shaped clamping plates 35 are symmetrically slidably provided on the side where the two disks 19 are close to each other, and two second slide grooves 42 are symmetrically provided on one side of each disk 19. A second slider 63 is fixedly provided at one end of each pair of second arc-shaped clamping plates 35, and each pair of second sliders 63 slides vertically in the two second slide grooves 42 respectively. One side of each pair of second sliders 63 is respectively connected to one side of the two second slide grooves 42 and is provided with a second spring 41. Each pair of second arc-shaped clamping plates 35 is located radially outside each pair of first arc-shaped clamping plates 20.

[0031] Preferably, see Attachment Figure 7 , Attachment Fig. 9 A third hollow elastic member 36 is provided on each pair of second arc-shaped clamping plates 35 on the side close to each other, a second rubber plate 37 is fixedly provided on each pair of third hollow elastic members 36 on the side close to each other, and a plurality of slots 38 are provided at intervals on each pair of second rubber plates 37 on the side close to each other.

[0032] Preferably, see Attachment Figure 7 , Attachment Fig. 9 A sleeve 43 is fixedly provided on the side away from each other of each pair of second arc-shaped clamping plates 35, and a fourth hollow elastic member 45 is fixedly provided inside each pair of sleeves 43. A second push rod 44 is fixedly provided on the side away from each other of each pair of fourth hollow elastic members 45, and one end of each pair of second push rods 44 away from each other is in sliding contact with the inner wall inclined surface of the movable ring 24. The interior of each pair of fourth hollow elastic members 45 is interconnected with the interior of each pair of third hollow elastic members 36, and a third connecting channel 46 is provided. The outer side of each second push rod 44 is in sliding contact with the inner side of the sleeve 43.

[0033] Preferably, see Attachment Figure 1 To Attachment Figure 3 , Attachment Figure 7 Two box doors 13 are symmetrically rotated on one side of the upper part of the detection box 10, and a display screen 11 and a control panel 12 are installed on the box door 13. A fixing block 47 is fixed on the upper side of the fixing frame 16, and a support plate 48 is fixed on the upper side of the fixing block 47. One end of the hose 59 is connected to the first plug 58, and the other end of the hose 59 is connected to an external air pump or a water pump.

[0034] Preferably, see Attachment Figure 4 , Attachment Figure 6 A vertical plate 50 is fixedly provided on the upper side of the bottom plate 15, a third electric telescopic rod 51 is installed on one side of the upper part of the vertical plate 50, a movable plate 52 is fixedly provided at the protruding end of the third electric telescopic rod 51, a fixed rod 53 is fixedly provided on the lower side of the movable plate 52, a clamping plate 54 is fixedly provided at the lower end of the fixed rod 53, a camera 62 is installed on one side of the lower part of the vertical plate 50, and a pressure gauge 55 is installed on the clamping plate 54.

[0035] A strength testing method for producing gas stainless steel bellows, comprising the following steps: S1: In the preparation stage, the bellows is installed on the clamping assembly of the detection system to ensure that the bellows is positioned correctly and firmly fixed. At the same time, check whether the various components of the detection system are in normal working condition; S2: In the pressure application stage, open the air source valve and introduce air of a certain pressure into the bellows sample. Then, drive the two ends of the bellows away from each other through the clamping assembly to apply a specified pulling force to the bellows. The pulling force should be determined according to the specifications and test standards of the bellows. S3: Monitoring and recording. During the stretching process, closely observe the deformation of the bellows sample to check for cracks, leakage, or detachment of the joints at both ends. At the same time, record key data during the test, such as tension value, displacement, etc. S4: Maintain the tension. After reaching the specified tension, maintain the tension for a period of time to evaluate the performance of the bellows under continuous tension; S5: Unloading inspection: After unloading the tension, check whether the bellows sample has permanent deformation, cracks or other damage; at the same time, perform an airtightness check to ensure that the bellows still maintains good sealing performance after stretching.

[0036] Specific use of the present invention: First, the staff installs the first plug 58 and the second plug 61 at both ends of the bellows 49, and puts the two ends of the bellows 49 into the clamping assemblies in the two fixing rings 18. The two ends of the bellows 49 are located between the radial outer side of each pair of first arc-shaped clamps 20 and the radial inner side of each pair of second arc-shaped clamps 35. The control system controls the two first electric telescopic rods 17 to extend and drive the two discs 19 to approach each other, so that the ends of the two pairs of first arc-shaped clamps 20 that are close to each other contact with the first plug 58 and the second plug 61 respectively, and the two first electric telescopic rods 17 stop, so that the first plug 58 and the second plug 61 are limited and fixed by the two pairs of first arc-shaped clamps 20, so as to prevent the first plug 58 and the second plug 61 from detaching from the two ends of the bellows 49.

[0037] Secondly, the control system controls the extension of the two second electric telescopic rods 25, and the extension of the two second electric telescopic rods 25 drives the two movable rings 24 to approach each other, and the ends of each pair of first push rods 30 that are away from each other are in sliding contact with the inner wall inclined surface of the movable ring 24, and the movable ring 24 moves to push the two first push rods 30 to approach each other. The two first push rods 30 approach each other and drive the two piston plates 29 to approach each other. The two piston plates 29 approach each other to squeeze the solution in the hydraulic chamber 26 through the second connecting channel 34 into the second hollow elastic member 64, and the second hollow elastic member 64 expands and pushes the two first sliders 39 away from each other. The two first sliders 39 move away from each other, driving the two first arc-shaped clamping plates 20 to move away from each other. The two first arc-shaped clamping plates 20 move away from each other, driving the two first rubber plates 22 to move away from each other. The two first rubber plates 22 move away from each other, driving the several pairs of elastic protrusions 23 to move away from each other, so that the several pairs of elastic protrusions 23 respectively enter the inner wall grooves of the bellows 49, which is beneficial to clamping and fixing the inner wall of one end of the bellows 49 through the two first rubber plates 22 and the several pairs of elastic protrusions 23 and limiting the fixing effect.

[0038] At the same time, the two movable rings 24 approach each other, and the ends of each pair of second push rods 44 that are away from each other are in sliding contact with the inner wall slope of the movable ring 24, so that each pair of second push rods 44 are brought closer to each other under the guidance of the movable ring 24. The two second push rods 44 approach each other to drive the two fourth hollow elastic members 45 and the second arc-shaped clamping plates 35 to approach each other, and the two second arc-shaped clamping plates 35 approach each other to clamp and fix the outer wall of one end of the bellows 49, so that the inner wall and the outer wall of the two ends of the bellows 49 are double-clamped and fixed by the two pairs of first arc-shaped clamping plates 20 and the two pairs of second arc-shaped clamping plates 35, respectively, which is conducive to the tensile strength test of the bellows 49. And when the bellows 49 is tested for air tightness, the bellows 49 can be straightened to prevent the bellows 49 from shrinking and affecting the accuracy of the bellows 49 test.

[0039] At the same time, the two second arc clamping plates 35 approach each other and drive the two second rubber plates 37 to approach each other, and the two second rubber plates 37 approach each other to clamp and fix the outer wall of one end of the bellows 49; and the two second rubber plates 37 approach each other and drive the several pairs of card grooves 38 to approach each other, so that the several pairs of card grooves 38 are respectively in contact with the convex parts of the outer wall of one end of the bellows 49, which is conducive to the contact between the convex parts of the outer wall of the bellows 49 and the card grooves 38, so as to limit and fix the outer wall of one end of the bellows 49; so that the several pairs of card grooves 38 are in contact with the outer wall convex parts of the bellows 49, and the several pairs of elastic protrusions 23 are in contact with the inner wall grooves of the bellows 49, and the shape characteristics of the bellows 49 are used to perform a double limit and fixation on the inner and outer walls of the two ends of the bellows 49, which is conducive to improving the quality of the tensile strength test of the bellows 49 and preventing the two ends of the bellows 49 from detaching from the clamping assembly.

[0040] Then, each pair of first rubber plates 22 moves away from each other and contacts the inner wall of one end of the bellows 49, and the two movable rings 24 continue to approach each other, so that the solution in the hydraulic chamber 26 enters the solution in the second hollow elastic member 64 continuously, and the two sides of the second hollow elastic member 64 are resisted by the two first sliders 39, and the solenoid valve 28 opens. The solution in the second hollow elastic member 64 enters the two first hollow elastic members 21 respectively through the two first connecting channels 27, and the expansion of the two first hollow elastic members 21 further pushes the two first rubber plates 22 away from each other, so as to increase the clamping force on the inner wall of one end of the bellows 49. And the contact area between the elastic protrusion 23 and the groove on the inner wall of the bellows 49 is expanded, so as to improve the limiting and fixing effect on the inner wall of the bellows 49. The two piston plates 29 approach each other to drive the two guide blocks 31 to approach each other, and the two ends of the pressure plate 32 are respectively in sliding contact with the inclined surfaces of the two guide blocks 31 that are close to each other. Therefore, under the guiding action of the two guide blocks 31, the pressure plate 32 slides in the hydraulic chamber 26, and the amount of solution in the hydraulic chamber 26 squeezed into the second hollow elastic member 64 is increased, so that the solution in the second hollow elastic member 64 can enter the two first hollow elastic members 21, so that the two first hollow elastic members 21 further expand and push the two first rubber plates 22 away from each other, further increasing the clamping force of the two first rubber plates 22 on the inner wall of one end of the bellows 49; and the contact area between the elastic protrusion 23 and the groove on the inner wall of the bellows 49 is expanded, further improving the limiting and fixing effect on the inner wall of the bellows 49, which is conducive to improving the quality of tensile strength testing of the bellows 49 and preventing the two ends of the bellows 49 from detaching from the clamping assembly.

[0041] At the same time, each pair of second rubber plates 37 contacts the outer wall of one end of the bellows 49, and the two movable rings 24 continue to approach each other, so that each pair of second push rods 44 continue to approach each other. The two second push rods 44 approach each other to squeeze the two fourth hollow elastic members 45 respectively, so that the solution in the two fourth hollow elastic members 45 enters the two third hollow elastic members 36 respectively through the two third connecting channels 46, and the two third hollow elastic members 36 expand and further push the two second rubber plates 37 to approach each other, thereby increasing the clamping force of the two second rubber plates 37 on the outer wall of one end of the bellows 49; and increasing the contact area between the plurality of pairs of slots 38 and the outer wall convex portion of the bellows 49, which is conducive to improving the limiting and fixing effect on the outer wall of one end of the bellows 49.

[0042] Finally, the clamping assembly fully clamps and fixes the two ends of the bellows 49 , and respectively supports the first plug 58 and the second plug 61 through two pairs of first arc-shaped clamping plates 20 to prevent the first plug 58 and the second plug 61 from slipping out from the two ends of the bellows 49 .

[0043] When performing tensile strength testing, the staff connects the other end of the hose 59 to an external air pump, and the external air pump starts to pass air of a certain pressure into the interior of the bellows 49 through the hose 59. The control system controls the two first electric telescopic rods 17 to contract, and the contraction of the two first electric telescopic rods 17 drives the two discs 19 to move away from each other, and the two discs 19 move away from each other to stretch the two ends of the bellows 49, thereby applying a specified tensile force to the bellows 49, and the tensile force should be determined according to the specifications and test standards of the bellows.

[0044] Next, during the stretching process, the camera 62 monitors the situation inside the test box 10, and transmits the picture and data to the display screen 11. The staff controls the detection method inside the test box 10 through the control panel 12. The deformation of the bellows 49 is closely observed through the display screen 11 and the camera 62 to check whether there are cracks. The pressure detector 60 is then used to detect the change in the air pressure inside the bellows 49 to facilitate the detection of whether the bellows 49 is leaking. At the same time, key data during the test, such as the tension value, displacement, etc., are recorded.

[0045] Then, the tension is maintained, and after reaching the specified tension, the tension is maintained for a period of time to evaluate the performance of the bellows under continuous tension; Finally, unload the inspection. After unloading the tension, check whether the bellows 49 has permanent deformation, cracks or other damages; at the same time, perform an air tightness check on the bellows 49 to ensure that the bellows still maintains good sealing performance after stretching.

[0046] When performing an air tightness test, the control system controls the two first electric telescopic rods 17 to retract. The contraction of the two first electric telescopic rods 17 drives the two discs 19 to move away from each other. The two discs 19 move away from each other to straighten the two ends of the bellows 49 to prevent the bellows 49 from shrinking.

[0047] Next, the staff connects the other end of the hose 59 to an external air pump, and the external air pump starts to pass air of a certain pressure into the interior of the bellows 49 through the hose 59 .

[0048] Finally, maintain the pressure and check: maintain the pressure for a certain period of time, and use the pressure detector 60 to detect the change of the air pressure in the bellows 49 to determine whether the bellows 49 has leakage.

[0049] When performing a pressure test, the control system controls the third electric telescopic rod 51 to extend, and the extension of the third electric telescopic rod 51 drives the movable plate 52 and the fixed rod 53 to move downward, and the fixed rod 53 moves downward to drive the clamping plate 54 to move downward, and the clamping plate 54 moves downward to cooperate with the support plate 48 to fix, thereby squeezing the bellows 49. The clamping plate 54 moves downward to squeeze the bellows 49, and the pressure gauge 55 displays the squeezed data, so that the strength of the bellows 49 can be tested.

[0050] The present invention provides a strength detection system for the production of gas stainless steel bellows. Through the arrangement of a movable ring 24, a first push rod 30, a piston plate 29, a second hollow elastic member 64, a first slider 39, and a first arc-shaped clamping plate 20, two second electric telescopic rods 25 are extended to drive the two movable rings 24 to approach each other. The ends of each pair of first push rods 30 that are away from each other are in sliding contact with the inner wall inclined surface of the movable ring 24. The movable ring 24 moves to push the two first push rods 30 to approach each other. The two first push rods 30 approach each other and drive the two piston plates 29 to approach each other. The two piston plates 29 approach each other to squeeze the solution in the hydraulic chamber 26 through the second connecting channel 34 into the second hollow elastic member 64. The second hollow elastic member 64 expands. The expansion pushes the two first sliders 39 away from each other; the two first sliders 39 move away from each other, driving the two first arc-shaped clamping plates 20 away from each other, the two first arc-shaped clamping plates 20 move away from each other, driving the two first rubber plates 22 away from each other, the two first rubber plates 22 move away from each other and contact the inner wall of one end of the bellows 49, thereby clamping and fixing the inner wall of one end of the bellows 49; and the two first rubber plates 22 move away from each other, driving the plurality of pairs of elastic protrusions 23 away from each other, so that the plurality of pairs of elastic protrusions 23 respectively enter the inner wall grooves of the bellows 49 for limiting and fixing, which is conducive to clamping and fixing and limiting and fixing the inner wall of one end of the bellows 49 by the two first rubber plates 22 and the plurality of pairs of elastic protrusions 23. Then, by setting the first hollow elastic member 21, the solenoid valve 28, and the first connecting channel 27, each pair of first rubber plates 22 move away from each other and contact the inner wall of one end of the bellows 49, and the two movable rings 24 continue to approach each other, so that the solution in the hydraulic chamber 26 enters the solution in the second hollow elastic member 64 continuously, and the two sides of the second hollow elastic member 64 are supported by the two first sliders 39, so that the pressure on the two solenoid valves 28 is continuously increased, so as to open the solenoid valves 28; the solution in the second hollow elastic member 64 enters the two first hollow elastic members 21 respectively through the two first connecting channels 27, and the expansion of the two first hollow elastic members 21 further pushes the two first rubber plates 22 away from each other, so as to increase the clamping force on the inner wall of one end of the bellows 49; and the contact area between the elastic protrusion 23 and the groove on the inner wall of the bellows 49 is expanded, so as to improve the limiting and fixing effect on the inner wall of the bellows 49.Finally, by setting the pressing plate 32 and the guide block 31, the two piston plates 29 are brought closer to each other, driving the two guide blocks 31 to approach each other, and the two ends of the pressing plate 32 are respectively in sliding contact with the inclined surfaces of the two guide blocks 31 that are close to each other. Therefore, under the guiding action of the two guide blocks 31, the pressing plate 32 slides in the hydraulic chamber 26, increasing the amount of solution in the hydraulic chamber 26 squeezed into the second hollow elastic member 64, so that the solution in the second hollow elastic member 64 can enter the two first hollow elastic members 21, so that the two first hollow elastic members 21 further expand and push the two first rubber plates 22 away from each other, further increasing the clamping force of the two first rubber plates 22 on the inner wall of one end of the bellows 49; and expanding the contact area between the elastic protrusion 23 and the groove on the inner wall of the bellows 49, further improving the limiting and fixing effect on the inner wall of the bellows 49, which is conducive to improving the quality of tensile strength testing of the bellows 49 and preventing the two ends of the bellows 49 from detaching from the clamping assembly.

[0051] The present invention provides a strength detection system for the production of gas stainless steel bellows. By arranging the second arc-shaped clamping plate 35, the sleeve 43, the fourth hollow elastic member 45 and the second push rod 44, the two movable rings 24 are brought close to each other, and the ends of each pair of second push rods 44 that are away from each other are in sliding contact with the inner wall inclined surface of the movable ring 24, so that under the guiding action of the movable ring 24, each pair of second push rods 44 are brought close to each other; the two second push rods 44 are brought close to each other to drive the two fourth hollow elastic members 45 and the second arc-shaped clamping plates 35 to be close to each other, and the two second arc-shaped clamping plates 35 are brought close to each other to clamp and fix the outer wall of one end of the bellows 49, so that the inner wall and the outer wall of the two ends of the bellows 49 are double clamped and fixed by the two pairs of first arc-shaped clamping plates 20 and the two pairs of second arc-shaped clamping plates 35, respectively, which is conducive to the tensile strength detection of the bellows 49. By setting the second rubber plate 37 and the clamping groove 38, the two second arc clamping plates 35 are brought close to each other to drive the two second rubber plates 37 to be close to each other, and the two second rubber plates 37 are brought close to each other to clamp and fix the outer wall of one end of the bellows 49; and the two second rubber plates 37 are brought close to each other to drive the plurality of pairs of clamping grooves 38 to be brought close to each other, so that the plurality of pairs of clamping grooves 38 are respectively in contact with the convex portion of the outer wall of one end of the bellows 49, which is conducive to the contact between the convex portion of the outer wall of the bellows 49 and the clamping groove 38, so as to limit and fix the outer wall of one end of the bellows 49; so that the plurality of pairs of clamping grooves 38 are in contact with the outer wall convex portion of the bellows 49, and the plurality of pairs of elastic protrusions 23 are in contact with the inner wall groove of the bellows 49, and the shape characteristics of the bellows 49 are utilized to perform a double limit and fixation on the inner and outer walls of the two ends of the bellows 49, which is conducive to improving the quality of the tensile strength test of the bellows 49 and preventing the two ends of the bellows 49 from being separated from the clamping assembly. Finally, by setting the third hollow elastic member 36 and the third connecting channel 46, each pair of second rubber plates 37 contacts the outer wall of one end of the bellows 49, and the two movable rings 24 continue to approach each other, so that each pair of second push rods 44 continue to approach each other; the two second push rods 44 approach each other to squeeze the two fourth hollow elastic members 45 respectively, so that the solutions in the two fourth hollow elastic members 45 enter the two third hollow elastic members 36 respectively through the two third connecting channels 46, and the expansion of the two third hollow elastic members 36 further pushes the two second rubber plates 37 to approach each other, thereby increasing the clamping force of the two second rubber plates 37 on the outer wall of one end of the bellows 49; and the contact area between the plurality of pairs of slots 38 and the outer wall convex portion of the bellows 49 becomes larger, which is conducive to improving the limiting and fixing effect on the outer wall of one end of the bellows 49.

[0052] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A strength detection system for gas stainless steel bellows production, characterized by: The detection box (10) comprises a fixing plate (14) fixedly arranged in the middle of the interior of the detection box (10), a bottom plate (15) fixedly arranged on the upper side of the fixing plate (14), a fixing frame (16) fixedly arranged on the upper side of the bottom plate (15), clamping assemblies arranged on both side walls of the fixing frame (16), a bellows (49) placed on the clamping assemblies, a first plug (58) and a second plug (61) installed at both ends of the bellows (49), a hose (59) arranged on the first plug (58), and a pressure detector (60) installed on the second plug (61); The clamping assembly comprises two first electric telescopic rods (17), the two first electric telescopic rods (17) are respectively fixed on the two side walls of the fixing frame (16), a disc (19) is respectively fixed on the protruding ends of the two first electric telescopic rods (17), two first arc-shaped clamping plates (20) are symmetrically slidably arranged in the middle of the two sides of the two disks (19) close to each other, a first hollow elastic member (21) is respectively arranged on the side of each pair of the first arc-shaped clamping plates (20) away from each other, and each pair of the first hollow elastic members (21) is away from each other. A first rubber plate (22) is respectively provided on one side of each pair of the first rubber plates (22), a plurality of elastic protrusions (23) are spaced apart on the side away from each other, a first slider (39) is respectively fixedly provided on one end of each pair of the first arc-shaped clamping plates (20), two first slide grooves (40) are symmetrically provided on one side of each of the disks (19), the two first sliders (39) respectively slide vertically in the two first slide grooves (40), and a second hollow elastic member (64) is mutually connected between the sides of each pair of the first sliders (39) that are close to each other.

2. A strength detection system for gas stainless steel bellows production according to claim 1, characterized in that: The interior of each of the second hollow elastic members (64) is respectively connected to the interiors of the two first hollow elastic members (21) and is provided with a first connecting channel (27); each of the first connecting channels (27) is located inside the first sliding block (39); a solenoid valve (28) is installed inside each of the first connecting channels (27); a fixed ring (18) is fixedly provided on both side walls of the fixed frame (16); a movable ring (24) is slidably provided inside the two fixed rings (18); and each movable ring (24) is provided with a The inner wall is of a conical structure. A hydraulic chamber (26) is provided inside each of the discs (19). Two piston plates (29) are symmetrically arranged vertically inside each of the hydraulic chambers (26) for sliding movement. A first push rod (30) is fixedly arranged on the side away from each other of each pair of piston plates (29). The ends of each pair of the first push rods (30) away from each other are in sliding contact with the inner wall slope of the movable ring (24). A second connecting channel (34) is provided to interconnect each of the hydraulic chambers (26) and the interior of the second hollow elastic member (64).

3. A strength detection system for gas stainless steel bellows production according to claim 2, characterized in that: A guide block (31) is fixedly provided on the side close to each other of each pair of piston plates (29), a pressure plate (32) is slidably provided inside each hydraulic chamber (26), one side of each pressure plate (32) is connected to one side of the hydraulic chamber (26) and is provided with a first spring (33), and the side close to each pair of guide blocks (31) is in sliding contact with the inclined surfaces at both ends of each pressure plate (32).

4. A strength detection system for gas stainless steel bellows production according to claim 2, characterized in that: A second electric telescopic rod (25) is respectively installed on the two side walls of the fixed frame (16), and the extended ends of the two second electric telescopic rods (25) are respectively fixedly connected to one side of the two movable rings (24).

5. A strength detection system for gas stainless steel bellows production according to claim 2, characterized in that: Two second arc-shaped clamping plates (35) are symmetrically slidably provided on the sides of the two disks (19) close to each other, and two second sliding grooves (42) are symmetrically provided on one side of each disk (19). A second sliding block (63) is fixedly provided at one end of each pair of the second arc-shaped clamping plates (35), and each pair of the second sliding blocks (63) slides vertically in the two second sliding grooves (42), and one side of each pair of the second sliding blocks (63) is respectively connected to one side of the two second sliding grooves (42) and provided with a second spring (41), and each pair of the second arc-shaped clamping plates (35) is located radially outside each pair of the first arc-shaped clamping plates (20).

6. A strength detection system for gas stainless steel bellows production according to claim 5, characterized in that: A third hollow elastic member (36) is provided on each pair of the second arc-shaped clamping plates (35) on the side close to each other, a second rubber plate (37) is fixedly provided on each pair of the third hollow elastic members (36) on the side close to each other, and a plurality of slots (38) are provided at intervals on each pair of the second rubber plates (37) on the side close to each other.

7. A strength detection system for gas stainless steel bellows production according to claim 6, characterized in that: A sleeve (43) is fixedly provided on the side away from each other of each pair of the second arc-shaped clamping plates (35), a fourth hollow elastic member (45) is provided inside each pair of the sleeves (43), a second push rod (44) is fixedly provided on the side away from each other of each pair of the fourth hollow elastic members (45), the ends of each pair of the second push rods (44) away from each other are in sliding contact with the inner wall inclined surface of the movable ring (24), the interior of each pair of the fourth hollow elastic members (45) is connected to the interior of each pair of the third hollow elastic members (36) and a third connecting channel (46) is provided, and the outer side of each second push rod (44) is in sliding contact with the inner side of the sleeve (43).

8. A strength detection system for gas stainless steel bellows production according to claim 1, characterized in that: Two box doors (13) are symmetrically rotated on one side of the upper part of the detection box (10), and a display screen (11) and a control panel (12) are installed on the box door (13). A fixing block (47) is fixed on the upper side of the fixing frame (16), and a support plate (48) is fixed on the upper side of the fixing block (47). One end of the hose (59) is connected to the first plug (58), and the other end of the hose (59) is connected to an external air pump or a water pump.

9. A strength detection system for gas stainless steel bellows production according to claim 8, characterized in that: A vertical plate (50) is fixedly provided on the upper side of the bottom plate (15), a third electric telescopic rod (51) is installed on one side of the upper part of the vertical plate (50), a movable plate (52) is fixedly provided at the extended end of the third electric telescopic rod (51), a fixed rod (53) is fixedly provided on the lower side of the movable plate (52), a clamping plate (54) is fixedly provided at the lower end of the fixed rod (53), a camera (62) is installed on one side of the lower part of the vertical plate (50), and a pressure gauge (55) is installed on the clamping plate (54).

10. A strength detection method for gas stainless steel bellows production, comprising a strength detection system for gas stainless steel bellows production according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: In the preparation stage, the bellows is installed on the clamping assembly of the detection system to ensure that the bellows is positioned correctly and firmly fixed. At the same time, check whether the various components of the detection system are in normal working condition; S2: In the pressure application stage, open the air source valve and introduce air of a certain pressure into the bellows sample. Then, drive the two ends of the bellows away from each other through the clamping assembly to apply a specified pulling force to the bellows. The pulling force should be determined according to the specifications and test standards of the bellows. S3: Monitoring and recording. During the stretching process, closely observe the deformation of the bellows sample to check for cracks, leakage, or detachment of the joints at both ends. At the same time, record key data during the test, such as tension value, displacement, etc. S4: Maintain the tension. After reaching the specified tension, maintain the tension for a period of time to evaluate the performance of the bellows under continuous tension; S5: Unloading inspection: After unloading the tension, check whether the bellows sample has permanent deformation, cracks or other damage; at the same time, perform an airtightness check to ensure that the bellows still maintains good sealing performance after stretching.

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