A lifting device and detection system for pipe fittings

Abstract

The utility model provides a kind of lifting device and detection system for pipe detection, for the lifting device of pipe detection including mounting seat, support frame, telescopic mechanism and elastic member in compressed state, opening slot is provided in mounting seat, the opening of opening slot is set in the upper end surface of mounting seat, one end of support frame is set as connecting end, first inclined surface is provided on connecting end, connecting end is movably set in opening slot, the end of support frame away from connecting end is used to carry the pipe fitting to be detected, elastic member is set in opening slot along the extension direction of opening slot, one end of elastic member abuts in the lower end surface of support frame, one end of telescopic mechanism is set in opening slot, and second inclined surface is provided in cooperation with first inclined surface, in this way, by telescopic mechanism back and forth movement along the extension direction perpendicular to opening slot, the pipe fitting to be detected can be adjusted to appropriate height, so that detection system detects, with Simple structure, easy to operate and the like.

Description

Technical Field

[0001] This application relates to the field of pipe fitting inspection technology, and further to a lifting device and inspection system for pipe fitting inspection. Background Technology

[0002] Pipe fittings are a very common type of component. They are often used for load-bearing or as structural strength components and are widely used in various fields such as daily necessities, product packaging, and medical consumables, making them very popular.

[0003] In production, pipes undergo cutting and packaging after being extruded to complete the processing. However, quality problems are prone to occur after extrusion; if they proceed directly to the next process without passing inspection, it will affect their quality. To ensure pipe quality, inspection systems are often used to check for defects such as indentations and cracks on the pipe's exterior. A lifting device is a key component of the inspection system, primarily used to support the pipe for surface inspection. This process requires adjusting the pipe's height to ensure accurate inspection. However, in existing technologies, adjusting the pipe height often requires replacing support devices of different heights, which is inconvenient.

[0004] Therefore, this utility model aims to provide a lifting device and detection system for pipe fitting inspection to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this application is to provide a lifting device and testing system for pipe inspection. The system uses a telescopic mechanism to move the support frame up and down, thereby adjusting the pipe to be inspected to a suitable height so that the testing system can accurately inspect the pipe. It features a simple structure, convenient operation, and high flexibility.

[0006] To achieve the above objectives, this application provides a lifting device for pipe inspection, comprising:

[0007] Mounting base, wherein an opening groove is provided inside the mounting base, and the opening of the opening groove is located on the upper end face of the mounting base;

[0008] A support frame, one end of which is configured as a connecting end, a first inclined guide surface is provided on the connecting end, and the connecting end is movably disposed in the opening groove, and the other end of the support frame away from the connecting end is disposed outside the opening groove, for supporting the pipe fitting to be tested;

[0009] An elastic member in a compressed state is arranged in the opening groove along the extending direction of the opening groove, and one end of the elastic member abuts against the lower end surface of the support frame;

[0010] A telescopic mechanism is arranged in the opening groove at one end, and is provided with a second inclined guide surface matched with the first inclined guide surface;

[0011] The second inclined guide surface is used to be in contact and extruded with the first inclined guide surface, and the telescopic mechanism is adapted to move back and forth along the direction perpendicular to the extending direction of the opening groove, so as to drive the support frame to move up and down.

[0012] In some embodiments, the telescopic mechanism comprises a driving assembly and a sliding block, the sliding block is movably arranged in the opening groove, and the second inclined guide surface is arranged at the lower end surface of the sliding block;

[0013] The output end of the driving assembly is arranged in the mounting seat and is in transmission connection with the sliding block, and is used to drive the sliding block to move along the direction perpendicular to the extending direction of the opening groove.

[0014] In some embodiments, one end of the support frame is provided with a through groove, the through groove is arranged along the direction perpendicular to the extending direction of the opening groove, so as to form the connecting end;

[0015] The bottom wall of the through groove is arranged upwardly inclined in the direction away from the driving assembly, so as to form the first inclined guide surface, and the lower end surface of the sliding block is arranged downwardly inclined in the direction close to the driving assembly, so as to form the second inclined guide surface.

[0016] In some embodiments, the mounting seat is provided with a receiving cavity arranged along the direction perpendicular to the extending direction of the opening groove, the receiving cavity intersects with the opening groove, and the output end of the driving assembly is arranged in the receiving cavity to be in transmission connection with the sliding block.

[0017] In some embodiments, the driving assembly comprises a threaded rod and a hand wheel arranged at one end of the threaded rod, one side of the mounting seat is provided with a threaded hole in communication with the receiving cavity, and the threaded hole is provided with a thread matched with the threaded rod;

[0018] The hand wheel is arranged outside the mounting seat, and one end of the threaded rod away from the hand wheel is arranged in the receiving cavity through the threaded hole, so as to form the output end.

[0019] In some embodiments, one side of the mounting seat away from the threaded hole is provided with a through hole, the through hole is in communication with the opening groove and the receiving cavity;

[0020] The sliding block is abutted against the top wall of the through hole under the action of the elastic member.

[0021] In some embodiments, two support arms are arranged side by side at one end of the support frame away from the connecting end, and a roller is rotatably arranged between the two support arms, the roller being used to carry the pipe to be detected.

[0022] In some embodiments, a guide sleeve is further arranged in the opening slot, the guide sleeve being arranged outside the elastic member, one end of the elastic member extending out of the guide sleeve and being abutted against the support frame, and the other end of the elastic member being abutted against the bottom wall of the opening slot.

[0023] In some embodiments, an inner groove is arranged on the lower end face of the connecting end and matched with the elastic member, and one end of the elastic member is arranged in the inner groove.

[0024] A detection system comprising the lifting device for pipe detection.

[0025] Compared with the prior art, the lifting device for pipe detection and the detection system have the following beneficial effects:

[0026] 1. The lifting device for pipe detection is provided with the first inclined guide surface on the support frame, one end of the telescopic mechanism is provided with the second inclined guide surface matched with the first inclined guide surface, in use, the first inclined guide surface is in contact and extrusion with the second inclined guide surface, when the second inclined guide surface moves to the right, the support frame moves downward under the extrusion of the second inclined guide surface, when the second inclined guide surface moves to the left, there is a gap between the first inclined guide surface and the second inclined guide surface, so that the support frame moves upward under the action of the restoring force of the elastic member, thereby realizing the up-and-down movement of the pipe to be detected, the staff does not need to frequently replace the support device, and the working efficiency can be effectively improved and the labor intensity of the staff can be reduced.

[0027] 2. The lifting device for pipe detection is provided with the through hole on the side of the mounting seat away from the threaded hole, i.e. the through hole is arranged at one end in the extension direction of the accommodating cavity, when the driving mechanism drives the sliding block to move back and forth along the direction perpendicular to the extension direction of the opening slot, the upper end face of the sliding block is abutted against the top wall of the accommodating cavity, so that the sliding block is limited by the through hole, preventing the elastic member in the compressed state from ejecting the support frame from the mounting seat, and ensuring the stability and reliability of the lifting device.

[0028] 3. The lifting device for pipe detection is provided with the driving assembly, which is a hand wheel and a threaded rod arranged at one end of the hand wheel, in use, only the hand wheel needs to be rotated, and the up-and-down movement of the pipe to be detected can be realized, and the operation is very convenient.

[0029] 4、The lifting device for pipe detection provided by the application is provided with a guide sleeve sleeved outside the elastic member in the open groove, which can support the elastic member, prevent the elastic member from being bent, ensure the elastic support of the elastic member, and make the elastic member and the support frame stably connected.

[0030] 5、The lifting device for pipe detection provided by the application can be used to adjust the height of the pipe according to actual needs, so as to ensure the accuracy of the detection system. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above features, technical characteristics, advantages and implementation modes of the application will be further described in the following preferred embodiments in a clear and understandable manner in combination with the drawings.

[0032] Figure 1 is a structural schematic view of the lifting device for pipe detection provided by the application;

[0033] Figure 2 is a structural schematic view of the lifting device for pipe detection provided by the application;

[0034] Figure 3 is a structural schematic view of the sliding block provided by the application;

[0035] Figure 4 is a structural schematic view of the support frame provided by the application;

[0036] Figure 5 is a structural schematic view of the support frame provided by the application; Figure 1 is a local enlarged schematic view of A;

[0037] Figure 6 is an exploded view of the lifting device for pipe detection provided by the application.

[0038] Explanation of reference numerals: mounting seat 1, open groove 11, mounting seat body 12, cover plate 13, support frame 2, connecting end 21, first inclined guide surface 22, through groove 23, support arm 24, telescopic mechanism 3, sliding block 31, sliding groove 311, blocking strip 312, second inclined guide surface 313, threaded rod 32, hand wheel 33, elastic member 4, guide sleeve 41, roller 5, rotating shaft 51, blocking ring 52, bearing 53, pipe 6. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0040] In order to make the drawing simple, only the parts related to the application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0041] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0042] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application.

[0044] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In one embodiment, a lifting device for pipe detection is described, which is simple in structure and convenient to use. The lifting device can realize the up-down movement of the pipe to be detected by setting the telescopic mechanism 3, the support frame 2 and the elastic member 4, so as to adjust the height of the pipe to be detected.

[0046] Specifically, referring to the drawings Figures 1 to 6 The lifting device for pipe detection comprises a mounting seat 1, a support frame 2, an elastic member 4 and a telescopic mechanism 3. The mounting seat 1 is provided with an open slot 11. The opening of the open slot 11 is arranged at the upper end face of the mounting seat 1, so that the open slot 11 is connected with the external environment. One end of the support frame 2 is provided as a connecting end 21, which is provided with a first inclined guide surface 22. The connecting end 21 is arranged in the open slot 11 through the opening 11 of the open slot 11, and can move up and down relative to the mounting seat 1. Correspondingly, the other end of the support frame 2 away from the connecting end 21 extends out of the open slot 11 and is arranged outside the open slot 11, and is used for carrying the pipe to be detected.

[0047] In addition, the elastic member 4 is in a compressed state under the gravity of the support frame 2. One end of the elastic member 4 abuts against the lower end face of the support frame 2, and the other end of the elastic member 4 abuts against the bottom wall of the open slot 11, so that the elastic member 4 is arranged in the open slot 11 along the extension direction of the open slot 11, and the support frame 2 is subjected to the restoring force of the elastic member 4. One end of the telescopic mechanism 3 is arranged in the open slot 11, and is provided with a second inclined guide surface 313 matched with the first inclined guide surface 22. Correspondingly, the first inclined guide surface 22 and the second inclined guide surface 313 are in contact and extrusion under the action of the restoring force of the elastic member 4, and the telescopic mechanism 3 is adapted to move back and forth along the direction perpendicular to the extension direction of the open slot 11, so that when the telescopic mechanism 3 moves back and forth, the support frame 2 moves up and down under the extrusion of the second inclined guide surface 313, and in turn drives the pipe to be detected on the support frame 2 to move up and down, so as to meet the height requirement of the pipe to be detected during pipe detection.

[0048] It should be pointed out that after the pipe is produced by extrusion, the outer surface of the pipe needs to be detected, and various processes such as character spraying are carried out, and finally the pipe can be packaged. During the detection process, different types of pipes need to be at different heights to be suitable for various detections of the pipes. However, in the prior art, the staff needs to replace the support devices at different heights, which is time-consuming and laborious, and the work efficiency is low. The lifting device for pipe detection provided in the embodiment can adjust the height of the pipe to be detected by driving the second inclined guide surface 313 to move left or right, and the first inclined guide surface 22 can drive the support frame 2 to move up or down under the cooperation of the second inclined guide surface 313 and the elastic member 4, so that the lifting device can be suitable for different types of pipes, has a wide application range, high universality, simple structure, and can effectively improve the work efficiency.

[0049] In one embodiment, referring to the drawings accompanying the specification Figures 2 to 5 , the telescopic mechanism 3 is further described. The telescopic mechanism 3 includes a driving assembly and a sliding block 31, and the sliding block 31 is movably arranged in the open slot 11, that is, the sliding block 31 can move back and forth along the direction perpendicular to the extension direction of the open slot 11. Correspondingly, the second inclined guide surface 313 is arranged at the lower end surface of the sliding block 31.

[0050] In addition, the output end of the driving assembly is arranged in the mounting seat 1 and is in transmission connection with the sliding block 31, so that the sliding block 31 is driven to move along the direction perpendicular to the extension direction of the open slot 11 by the driving assembly, and then the first inclined guide surface 22 is pressed against the second inclined guide surface 313, so that the support frame 2 moves up and down.

[0051] Further, the mounting seat 1 is provided with a receiving cavity arranged along the direction perpendicular to the extension direction of the open slot 11, and the receiving cavity intersects with the open slot 11. The output end of the driving assembly is arranged in the receiving cavity, so that the driving assembly is in transmission connection with the sliding block 31.

[0052] Correspondingly, the side of the sliding block 31 close to the driving assembly is provided with a sliding groove 311 arranged along the extension direction of the open slot 11. In addition, the sliding groove 311 is provided with a blocking strip 312 on the side wall in the extension direction of the sliding groove 311. The output end of the driving assembly is provided with a limiting groove arranged along the circumference of the output end. The output end is arranged in the sliding groove 311, and the side of the two blocking strips 312 close to each other is arranged in the limiting groove, so that the output end of the driving assembly is in transmission connection with the sliding block 31.

[0053] In one embodiment, referring to the drawings accompanying the specification Figure 2 and 6The driving assembly comprises a threaded rod 32 and a hand wheel 33 arranged at one end of the threaded rod 32, and one side of the mounting base 1 is provided with a threaded hole in communication with the accommodating cavity, the threaded hole is arranged at one end in the extending direction of the accommodating cavity, and a thread matched with the threaded rod 32 is arranged in the threaded hole. Correspondingly, the hand wheel 33 is arranged outside the mounting base 1, and one end of the threaded rod 32 away from the hand wheel 33 is arranged in the accommodating cavity through the threaded hole to form an output end.

[0054] It can be understood that the limiting groove is arranged at one end of the threaded rod 32 away from the hand wheel 33, one end of the threaded rod 32 away from the hand wheel 33 extends into the sliding groove 311, and the limiting groove of the threaded rod 32 can only limit the sliding block 31 in the horizontal direction, and the sliding block 31 is driven to move back and forth by the threaded rod 32. In order to realize that the threaded rod 32 moves to drive the support frame 2 to move up and down.

[0055] The staff can drive the threaded rod 32 to rotate by rotating the hand wheel 33, so that the threaded rod 32 moves, thereby driving the sliding block 31 to move.

[0056] Of course, in actual production application, the structure of the driving assembly has many kinds, and can also be arranged as a linear motor, a telescopic oil cylinder and the like, which will not be described in detail here, to achieve the purpose of driving the sliding block 31 to move, which is within the protection scope of the utility model.

[0057] In addition, one end of the mounting base 1 away from the threaded hole is provided with a through hole, the through hole is arranged at one end in the extending direction of the accommodating cavity and is in communication with the accommodating cavity and the open groove 11, and the upper end surface of the sliding block 31 abuts against the top wall of the through hole under the action of the elastic member 4, so that the sliding block 31 is limited in the vertical direction by the through hole, and when the sliding block 31 moves in the horizontal direction, the extrusion of the second inclined guide surface 313 on the first inclined guide surface 22 can fully drive the support frame 2 to move up and down.

[0058] As a preferred, the upper end surface of the sliding block 31 can also abut against the upper end surface of the accommodating cavity, to further ensure the stability of the sliding block 31 when moving.

[0059] In one embodiment, referring to the drawings Figure 5The support frame 2 is further described in the embodiment. One end of the support frame 2 is provided with a through groove 23, the through groove 23 is arranged along the direction perpendicular to the extension direction of the open groove 11, thereby forming a connecting end 21. In addition, the bottom wall of the through groove 23 is arranged upwardly inclined in the direction away from the driving assembly, thereby forming a first inclined guide surface 22. Correspondingly, the lower end surface of the sliding block 31 is arranged downwardly inclined in the direction close to the driving assembly, thereby forming a second inclined guide surface 313. It can be understood that when the threaded rod 32 moves in the direction close to the sliding block 31, the first inclined guide surface 22 moves along the second inclined guide surface 313, thereby causing the support frame 2 to be pressed by the sliding block 31, so as to drive the support frame 2 to move downwardly. When the threaded rod 32 moves in the direction away from the sliding block 31, there is a gap between the first inclined guide surface 22 and the second inclined guide surface 313, thereby causing the support frame 2 to move upwardly under the action of the restoring force of the elastic member 4, so as to drive the support frame 2 to move upwardly.

[0060] In addition, the mounting seat 1 is further described in the embodiment. The mounting seat 1 comprises a mounting seat body 12 and a cover plate 13, the cover plate 13 is arranged on one side of the mounting seat body 12, and the threaded hole is arranged on the cover plate 13.

[0061] One end of the support frame 2 away from the connecting end 21 is provided with two parallel arranged support arms 24, the two support arms 24 are rotatably provided with the roller 5, and the roller 5 is used to carry the pipe to be detected 6.

[0062] In one embodiment, referring to the description Figure 2 The mounting seat 1 is further described in the embodiment. The lifting device for pipe detection further comprises a guide sleeve 41 fixedly arranged in the open groove 11, and the guide sleeve 41 is sleeved outside the elastic member 4. Correspondingly, one end of the elastic member 4 extends out of the guide sleeve 41 and abuts against the support frame 2, and the other end of the elastic member 4 abuts against the bottom wall of the open groove 11.

[0063] In addition, the lower end surface of the connecting end 21 is provided with an inner groove matched with the elastic member 4, and one end of the elastic member 4 is arranged in the inner groove. The guide sleeve 41 is fixedly arranged in the open groove 11, so as to ensure that the elastic member 4 will not be severely bent and can be normally used. The arrangement of the inner groove enables the support frame 2 and the elastic member 4 to be stably connected, so as to ensure the elastic restoring effect of the elastic member 4.

[0064] Further, the support arm 24 of the support frame 2 is provided with the roller 5, the pipe to be detected 6 is arranged on the roller 5 in use, and can move forward through the roller 5 under the action of the extruder. Generally speaking, referring to the description Figure 1The roller 5 uses a V-shaped wheel to facilitate better placement of the pipe 6 to be detected on the roller 5, and to ensure stability of the pipe 6 during movement. In order to rotatably arrange the roller 5 between the two support arms 24, a rotating shaft 51 is rotatably arranged on the two support arms 24, at least two bearings 53 are sleeved on the outer side of the rotating shaft 51, and the roller 5 is sleeved on the outer side of the bearings 53 to rotate relative to the rotating shaft 51. In addition, a retaining ring 52 is further arranged at both ends of the rotating shaft 51 to limit the installation of the rotating shaft 51 on the support arms 24.

[0065] In one embodiment, the present embodiment provides a detection system comprising the lifting device for pipe detection of any of the above embodiments, which has the characteristics of strong universality, high work efficiency, etc. The detection system further comprises a camera for detecting the pipe 6. It can be understood that the detection system can be applied to the detection of pipes of different diameters, and the lifting device can drive the pipe 6 to move up and down to adjust the distance between the camera and the pipe 6 to be detected, thereby ensuring the detection accuracy of the camera.

[0066] Generally, the lifting device of the detection system can be provided as two, one installed at the front end of the detection device, and the other installed at the rear end of the detection device. When detecting pneumatic pipes of different specifications, first place the pipe 6 in the groove of the V-shaped wheel, then adjust the height of the V-shaped wheel through the hand wheel 33 to adjust the height of the pneumatic pipe to the center of the camera of the detection device, so that the camera can clearly image.

[0067] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A lifting device for pipe fitting inspection, characterized in that, include: Mounting base, wherein an opening groove is provided inside the mounting base, and the opening of the opening groove is located on the upper end face of the mounting base; A support frame, one end of which is configured as a connecting end, a first inclined guide surface is provided on the connecting end, and the connecting end is movably disposed in the opening groove, and the other end of the support frame away from the connecting end is disposed outside the opening groove, for supporting the pipe fitting to be tested; An elastic element in a compressed state is disposed in the opening groove along the extending direction of the opening groove, and one end of the elastic element abuts against the lower end face of the support frame. A telescopic mechanism, one end of which is disposed in the opening groove and is provided with a second inclined guide surface that cooperates with the first inclined guide surface; The second inclined guide surface is used to contact and press against the first inclined guide surface, and the telescopic mechanism is adapted to move back and forth along the extension direction perpendicular to the opening groove to drive the support frame to move up and down.

2. The lifting device for pipe fitting inspection according to claim 1, characterized in that, The telescopic mechanism includes a drive component and a sliding block, the sliding block being movably disposed within the opening slot, and the second inclined guide surface being disposed on the lower end surface of the sliding block; The output end of the drive component is disposed in the mounting base and is connected to the sliding block for driving the sliding block to move along the extension direction perpendicular to the opening slot.

3. A lifting device for pipe fitting inspection according to claim 2, characterized in that, One end of the support frame is provided with a through groove, which is arranged along the extension direction perpendicular to the opening groove to form the connecting end; The bottom wall of the through groove is inclined upward in the direction away from the drive assembly to form the first inclined guide surface, and the lower end surface of the sliding block is inclined downward in the direction close to the drive assembly to form the second inclined guide surface.

4. A lifting device for pipe fitting inspection according to claim 2, characterized in that, The mounting base is provided with a receiving cavity arranged along the extension direction perpendicular to the opening groove. The receiving cavity intersects with the opening groove. The output end of the drive component is disposed in the receiving cavity for transmission connection with the sliding block.

5. A lifting device for pipe fitting inspection according to claim 4, characterized in that, The drive assembly includes a handwheel with a threaded rod disposed at one end of the threaded rod, and a threaded hole communicating with the accommodating cavity is provided on one side of the mounting base, and a thread matching the threaded rod is provided in the threaded hole; The handwheel is located on the outside of the mounting base, and the end of the threaded rod away from the handwheel is disposed in the receiving cavity through the threaded hole to form the output end.

6. A lifting device for pipe fitting inspection according to claim 5, characterized in that, The mounting base has a through hole on the side away from the threaded hole, and the through hole is connected to the opening groove and the receiving cavity; The sliding block abuts against the top wall of the through hole under the action of the elastic element.

7. A lifting device for pipe fitting inspection according to any one of claims 1-6, characterized in that, The support frame shown has two parallel support arms at one end away from the connection end, and a roller is rotatably arranged between the two support arms. The roller is used to support the pipe to be tested.

8. A lifting device for pipe fitting inspection according to claim 1, characterized in that, It also includes a guide sleeve installed and fixed in the opening groove. The guide sleeve is sleeved on the outside of the elastic member. One end of the elastic member extends out of the guide sleeve and abuts against the support frame, and the other end of the elastic member abuts against the bottom wall of the opening groove.

9. A lifting device for pipe fitting inspection according to claim 8, characterized in that, The lower end face of the connecting end is provided with an inner groove that mates with the elastic element, and one end of the elastic element is disposed in the inner groove.

10. A detection system, characterized in that, Includes a lifting device for pipe fitting inspection as described in any one of claims 1-9.

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