Simple pipeline joint dissecting equipment
The automated, simple pipe joint cutting equipment solves the problems of low efficiency and safety associated with manual pipe joint cutting, enabling efficient and safe pipe joint cutting that adapts to different diameters and structures, and reducing operational risks and costs.
Patent Information
- Application Number
- CN202423227844.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, the process of dissecting pipe joints relies on manual operation, which is inefficient and poses safety risks, especially when dealing with large-diameter, high-pressure joints.
A simple dissecting pipe joint device is used, including a connecting platform, a fixing component, and a cutting device. Automated cutting is achieved through a drive mechanism, which consists of an X-axis moving lead screw, an X-axis support, an X-axis guide rod, a first stepper motor, and a Y-axis assembly. It can move the cutting device along the X and Y axes to achieve precise cutting.
It significantly improves operational safety, reduces the labor intensity of operators, increases work efficiency, is highly adaptable and can be applied to the dissection of joints of different diameters and structures, has high versatility and practicality, simple structure and low cost.
Smart Images
Figure CN223685096U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of pipe joint, in particular to a simple pipe joint dissection equipment. BACKGROUND
[0002] As a kind of high-performance pipe material, flexible composite pipe is widely used in many industrial fields due to its unique structure and material properties. To ensure the reliability and safety of flexible composite pipe in actual application, manufacturers need to conduct strict sealing and strength tests before delivery. These tests usually include burst test, which simulates the working state of the pipe under extreme conditions to test the bearing capacity and sealing performance of the pipe material. However, if the pipe material fails to meet the expected performance indicators during the experiment, i.e., the situation is not ideal, the joints at both ends of the pipe material need to be dissected and analyzed to find out the problem.
[0003] Currently, this dissection process mainly relies on manual operation, using an angle grinder or other tools for cutting and dissection. This method is not only inefficient, but also has certain safety risks. Improper operation can easily cause personal injury, especially when dealing with large-diameter, high-pressure joints. Due to the complexity of the size and structure of the joint, the dissection difficulty is greatly increased, so there is room for improvement. CONTENT OF THE INVENTION
[0004] To solve the problem of high difficulty and low efficiency of manual cutting and dissection of pipe, the present application provides a simple pipe joint dissection equipment.
[0005] The simple pipe joint dissection equipment provided by the present application adopts the following technical solution:
[0006] A simple pipe joint dissection equipment, comprising a connection platform, a fixing member and a cutting device for fixing and cutting test pipe material are arranged on the connection platform, a driving mechanism for driving the cutting device to move is arranged on the connection platform, the driving mechanism comprises an X-axis moving lead screw, two X-axis supports, an X-axis guide rod and a first stepper motor, the two X-axis supports are arranged on the two sides of the length direction of the connection platform respectively, the two ends of the X-axis moving lead screw are rotatably connected to the two X-axis supports respectively, the first stepper motor is arranged on one of the X-axis supports, the output end of the first stepper motor is connected to the end of the X-axis moving lead screw, the cutting device is threadedly connected to the X-axis moving lead screw, the two ends of the X-axis guide rod are connected to the two X-axis supports respectively, and the cutting device is slidably connected to the X-axis guide rod, the driving mechanism further comprises a Y-axis assembly for driving the two X-axis supports to move along the Y-axis direction.
[0007] Since the dissection process mainly relies on manual operation, cutting dissection is performed using tools such as an angle grinder, this method is not only inefficient, but also has certain safety risks, improper operation can easily cause personnel injury, especially when handling large-diameter, high-pressure joints, due to the size and complexity of the structure of the joint, the dissection difficulty is greatly increased; by adopting the above technical scheme, including the connecting platform, the fixing piece fixes the test pipe on the connecting platform, the cutting device is driven by the driving mechanism, the driving mechanism includes an X-axis moving screw rod, two X-axis supports, an X-axis guide rod, a first stepper motor and a Y-axis assembly;
[0008] When cutting dissection is performed on the test pipe, the test pipe to be dissected is placed on the connecting platform and fixed stably on the platform by the fixing piece, the positions of the two X-axis supports in the Y-axis direction are adjusted by the Y-axis assembly to determine the initial cutting position of the cutting device on the pipe, the first stepper motor is started, the output end of the motor drives the X-axis moving screw rod to rotate, and since the cutting device is threadedly connected to the screw rod, it will move along the X-axis direction with the rotation of the screw rod, the cutting device realizes cutting of the pipe, at the same time, the Y-axis assembly is used in cooperation with the first stepper motor, if cutting in different directions is needed, the Y-axis assembly can adjust the position of the X-axis support to change the cutting direction of the cutting device, so as to realize the required cutting shape and size, when the cutting device completes the predetermined cutting path, then, the reset program is started, the Y-axis assembly and the first stepper motor are used in cooperation to adjust the two X-axis supports to return to the initial position, completing the reset operation, at this time, the cutting quality can be checked, and further processing or dissection can be performed according to the needs.
[0009] Through the connection of the platform, the fixing piece and the cutting device, the device realizes automatic cutting, uses mechanical devices instead of traditional manual operation, significantly reduces the safety risks in the operation process, improves the operation safety, reduces the labor intensity of the operator, improves the work efficiency, has strong adaptability, can be applied to dissection of joints of different diameters and structures, improves the versatility and practicality of the device, at the same time, the structure is simple, convenient to manufacture and low in cost.
[0010] Optionally, the Y-axis assembly comprises two Y-axis moving lead screws, two Y-axis supports, two Y-axis guide rods and two second stepping motors, the two Y-axis supports are connected to the connecting platform, the two Y-axis moving lead screws correspond to the two Y-axis supports respectively, the two ends of the Y-axis moving lead screw are threadedly connected to the corresponding Y-axis support respectively, the Y-axis moving lead screw is arranged perpendicularly to the X-axis moving lead screw, the two second stepping motors are arranged on the two Y-axis supports, the output ends of the two second stepping motors are connected to the corresponding Y-axis moving lead screw respectively, the two X-axis supports are threadedly connected to the two Y-axis moving lead screws respectively, the two Y-axis guide rods are connected to the two Y-axis supports respectively, the Y-axis guide rod is arranged in parallel to the Y-axis moving lead screw, and the corresponding X-axis support is slidingly connected to the Y-axis guide rod.
[0011] By adopting the above technical scheme, the Y-axis assembly is composed of two Y-axis moving lead screws, two Y-axis supports, two Y-axis guide rods and two second stepping motors; when the cutting device needs to move along the Y-axis direction, the two second stepping motors are started at the same time, the output end of the second stepping motor drives the corresponding Y-axis moving lead screw to rotate, since the X-axis support is threadedly connected to the Y-axis moving lead screw, when the Y-axis moving lead screw rotates, the X-axis support moves along the Y-axis direction, the Y-axis guide rod provides a stable sliding track for the X-axis support, with the movement of the X-axis support along the Y-axis direction, the cutting device also moves, thereby realizing the movement of the cutting device along the Y-axis direction; through the arrangement of the Y-axis assembly, the accurate movement of the cutting device along the Y-axis direction can be realized, the positioning accuracy of the cutting device in the Y-axis direction is ensured, and the automation degree of the equipment is further improved.
[0012] Optionally, any X-axis support comprises a sliding block and a fixed plate, the sliding block is threadedly connected to the corresponding Y-axis moving lead screw, the fixed plate is connected to the bottom of the sliding block, and the two ends of the X-axis moving lead screw are rotatably connected to the fixed plates of the two X-axis supports respectively.
[0013] By adopting the above technical scheme, the X-axis support is composed of a sliding block and a fixed plate; through the arrangement of the X-axis support, the design of the sliding block and the fixed plate makes the structure of the X-axis support more compact, occupies less space, is conducive to the overall layout and optimization of the equipment, and improves the space utilization of the equipment.
[0014] Optionally, the number of X-axis guide rods is two, the two X-axis guide rods are arranged in parallel on the fixed plates of the two X-axis supports, and a first guide hole is formed through the cutting device to allow the X-axis guide rod to pass through.
[0015] By adopting the technical scheme, the number of the X-axis guide rods is two, and the cutting device slides on the X-axis guide rods through the first guide holes; through the number of the X-axis guide rods and the arrangement of the first guide holes, the two X-axis guide rods provide stable support for the cutting device, jointly constrain the movement track of the cutting device, reduce the error caused by vibration or shaking in the cutting process, ensure the cutting precision and reduce the deviation of the cutting device from the predetermined path, and the sliding fit mode of the first guide holes ensures the accurate positioning of the cutting device in the X-axis direction.
[0016] Optionally, any of the Y-axis supports comprises two L-shaped supports, and the two L-shaped supports are oppositely arranged on the connecting platform, and the two ends of the Y-axis moving screw rod are respectively rotationally connected to the two L-shaped supports of the corresponding Y-axis support.
[0017] By adopting the technical scheme, the Y-axis support is composed of two L-shaped supports; through the arrangement of the two L-shaped supports, the L-shaped supports can better disperse and bear the force and torque from the Y-axis moving screw rod, which helps to improve the carrying capacity of the entire Y-axis assembly, so that it can be applied to heavier cutting devices or larger loads, and the L-shaped support structure is simple and easy to install and debug.
[0018] Optionally, the two ends of the Y-axis guide rod are respectively connected to the two L-shaped supports of the corresponding Y-axis support, and the second guide hole for the Y-axis guide rod to pass through is provided on the slider of the X-axis support.
[0019] By adopting the technical scheme, the second guide hole is provided on the slider of the X-axis support; through the arrangement of the second guide hole, the second guide hole provides a stable movement track for the slider of the X-axis support, which helps to reduce the vibration and shaking of the slider during movement and improves the stability of the overall movement.
[0020] Optionally, an electric control box for controlling the first and second stepping motors is arranged on the connecting platform.
[0021] By adopting the technical scheme, the electric control box is installed on the connecting platform; through the arrangement of the electric control box, the electric control box concentrates the circuits and elements for controlling the first and second stepping motors together, so that the operator can centrally control the two stepping motors through the control panel or buttons on the electric control box, which simplifies the operation process and improves the work efficiency.
[0022] Optionally, the fixing member comprises a plurality of fixing belts, and the plurality of fixing belts are sequentially and spacedly arranged along the length direction of the connecting platform, and a fixing area for fixing the test pipe is formed between any of the fixing belts and the connecting platform.
[0023] By adopting the technical scheme, the fixing member includes a plurality of fixing belts, and the test pipe is fixed to the connecting platform through the fixing belts; through the arrangement of the plurality of fixing belts, the fixing belts can be flexibly adjusted according to the shape, size and weight of the test pipe, the stability of the test pipe on the connecting platform is enhanced, the fixing efficiency is greatly improved, and the test preparation time is shortened.
[0024] To sum up, the present application includes at least one of the following beneficial technical effects:
[0025] Through the arrangement of the connecting platform, the fixing member and the cutting device, the device realizes automatic cutting, uses a mechanical device instead of traditional manual operation, significantly reduces the safety risk in the operation process, improves the operation safety, reduces the labor intensity of the operator, improves the work efficiency, has strong adaptability and can be applied to joint dissection of different diameters and structures, improves the versatility and practicality of the device, has a simple structure, is convenient to manufacture and has low cost;
[0026] Through the arrangement of the Y-axis assembly, the cutting device can be accurately moved along the Y-axis direction, the positioning accuracy of the cutting device in the Y-axis direction is ensured, and the automation degree of the device is further improved.
[0027] Through the arrangement of the electric control box, the electric control box concentrates the circuits and elements for controlling the first and second stepping motors together, so that the operator can centrally control the two stepping motors through the control panel or buttons on the electric control box, simplifies the operation process and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a structural schematic view of a simple joint dissection pipe device in an embodiment of the present application.
[0029] Figure 2 is Figure 1 is an enlarged view of part A in
[0030] BRIEF DESCRIPTION OF DRAWINGS 1, connecting platform; 2, test pipe; 3, fixing member; 31, fixing belt; 4, cutting device; 5, driving mechanism; 51, X-axis moving screw; 52, X-axis support; 521, sliding block; 522, fixed plate; 53, X-axis guide rod; 54, first stepping motor; 55, Y-axis assembly; 551, Y-axis moving screw; 552, Y-axis support; 5521, L-shaped support; 553, Y-axis guide rod; 554, second stepping motor; 6, first guide hole; 7, second guide hole; 8, electric control box. DETAILED DESCRIPTION
[0031] The present application will be further described in detail below. Figures 1-2 The present application will be further described in detail below.
[0032] The embodiment of the application discloses a simple anatomical pipe joint device. Referring to Figure 1 The simple anatomical pipe joint device comprises a connecting platform 1, a fixing member 3 and a cutting device 4 are installed on the connecting platform 1, the fixing member 3 is used for fixing a test pipe 2 in the embodiment, and the cutting device 4 is used for cutting and dissecting the test pipe 2, and the cutting device 4 is provided with a power supply.
[0033] Referring to Figure 1 The fixing member 3 comprises a plurality of fixing belts 31, the plurality of fixing belts 31 are arranged along the length direction of the connecting platform 1 at intervals, preferably, the number of the fixing belts 31 is two, and a fixing area for the test pipe 2 is formed between any fixing belt 31 and the connecting platform 1; the fixing belt 31 can be flexibly adjusted according to the shape, size and weight of the test pipe 2, the stability of the test pipe 2 on the connecting platform 1 is enhanced, the fixing efficiency is greatly improved, and the test preparation time is shortened.
[0034] Referring to Figure 1 The connecting platform 1 is provided with a driving mechanism 5, the driving mechanism 5 is used for driving the cutting device 4 to move along the X and Y axes in the embodiment, the driving mechanism 5 comprises an X-axis moving lead screw 51, two X-axis supports 52, an X-axis guide rod 53, a first stepping motor 54 and a Y-axis assembly 55; the Y-axis assembly 55 comprises two Y-axis moving lead screws 551, two Y-axis supports 552, two Y-axis guide rods 553 and two second stepping motors 554.
[0035] Referring to Figure 1 The two Y-axis supports 552 are installed on the connecting platform 1, and the two Y-axis moving lead screws 551 correspond to the two Y-axis supports 552, any Y-axis support 552 comprises two L-shaped supports 5521 in the embodiment, the two L-shaped supports 5521 are oppositely installed on the connecting platform 1, and the two ends of the Y-axis moving lead screw 551 are rotatably connected to the two L-shaped supports 5521 of the corresponding Y-axis support 552 through bearings respectively; the L-shaped support 5521 can better disperse and bear the force and torque from the Y-axis moving lead screw 551, which helps to improve the carrying capacity of the whole Y-axis assembly 55, so that the Y-axis assembly 55 can be applied to a heavier cutting device 4 or a larger load, and the L-shaped support 5521 has a simple structure and is easy to install and debug.
[0036] Referring to Figure 1 The two second stepping motors 554 correspond to the two Y-axis supports 552 respectively, the second stepping motor 554 can realize forward and reverse rotation in the embodiment, the second stepping motor 554 is installed on one of the L-shaped supports 5521 of the corresponding Y-axis support 552, and the output end of the second stepping motor 554 is connected to the corresponding Y-axis moving lead screw 551.
[0037] Referring to Figure 1 and Figure 2, two X-axis supports 52 are respectively threadedly connected to the two Y-axis moving lead screws 551, any X-axis support 52 in the embodiment includes a sliding block 521 and a fixed plate 522, the sliding block 521 is threadedly connected to the corresponding Y-axis moving lead screw 551, and the fixed plate 522 is connected to the bottom of the sliding block 521, and the two ends of the X-axis moving lead screw 51 are respectively rotationally connected to the fixed plates 522 of the two X-axis supports 52 through bearings; the design of the sliding block 521 and the fixed plate 522 makes the structure of the X-axis support 52 more compact, occupies less space, is conducive to the overall layout and optimization of the equipment, and improves the space utilization of the equipment.
[0038] With reference to Figure 1 and Figure 2 , two Y-axis guide rods 553 correspond to the two Y-axis supports 552 respectively, the two ends of the Y-axis guide rod 553 are connected to the two L-shaped supports 5521 of the corresponding Y-axis support 552 respectively, the Y-axis guide rod 553 is arranged in parallel with the corresponding Y-axis moving lead screw 551, a second guide hole 7 is through-set on the sliding block 521 corresponding to the X-axis support 52 in the embodiment, and the sliding block 521 slides on the Y-axis guide rod 553 through the second guide hole 7; the second guide hole 7 provides a stable movement track for the sliding block 521 of the X-axis support 52, which helps to reduce the vibration and shaking of the sliding block 521 during movement, and improves the stability of overall movement.
[0039] With reference to Figure 1 , the X-axis moving lead screw 51 is located between the two X-axis supports 52, the two ends of the X-axis moving lead screw 51 are rotationally connected to the fixed plates 522 of the corresponding X-axis supports 52 through bearings, the cutting device 4 is threadedly connected to the X-axis moving lead screw 51, the X-axis moving lead screw 51 is arranged vertically to the Y-axis moving lead screw 551, the first stepping motor 54 is installed on the fixed plate 522 of one of the X-axis supports 52, and the output end of the first stepping motor 54 is connected to the end of the X-axis moving lead screw 51; in the embodiment, the first stepping motor 54 can realize forward and reverse rotation.
[0040] With reference to Figure 1 , the X-axis guide rod 53 is connected and fixed to the fixed plates 522 of the two X-axis supports 52, the X-axis guide rod 53 is arranged in parallel with the X-axis moving lead screw 51, a first guide hole 6 is through-set on the cutting device 4, the cutting device 4 is slidably connected with the X-axis guide rod 53 through the first guide hole 6 in the embodiment, the number of X-axis guide rods 53 in the embodiment is two, and the number of first guide holes 6 on the cutting device 4 in the embodiment is also two; the two X-axis guide rods 53 provide stable support for the cutting device 4, jointly constrain the movement track of the cutting device 4, reduce the error caused by vibration or shaking during cutting, ensure the cutting precision and reduce the deviation of the cutting device 4 from the predetermined path, and simultaneously ensure the accurate positioning of the cutting device 4 in the X-axis direction through the sliding fit mode of the first guide hole 6.
[0041] Referring to Figure 1 The bottom of the connecting platform 1 is provided with an electric control box 8, which is used to control the first stepper motor 54 and the two second stepper motors 554 in the embodiment; the electric control box 8 concentrates the circuits and elements for controlling the first stepper motor 54 and the second stepper motors 554, so that the operator can centrally control the two stepper motors through the control panel or buttons on the electric control box 8, simplifying the operation process and improving the work efficiency.
[0042] The implementation principle of the simple dissection pipe joint equipment in the embodiment is as follows: when cutting and dissecting the experimental pipe material, the experimental pipe material to be dissected is placed on the connecting platform 1 and is stably fixed on the platform by the fixing member 3; the positions of the two X-axis supports 52 along the Y-axis direction are adjusted by the Y-axis assembly 55, and the two second stepper motors 554 are started; the output end of the second stepper motor 554 drives the corresponding Y-axis moving lead screw 551 to rotate; since the X-axis support 52 is threadedly connected to the Y-axis moving lead screw 551, when the Y-axis moving lead screw 551 rotates, the X-axis support 52 moves along the Y-axis direction; the Y-axis guide rod 553 provides a stable sliding track for the X-axis support 52; with the movement of the X-axis support 52 along the Y-axis direction, the cutting device 4 also moves, and the initial cutting position of the cutting device 4 on the pipe material is determined.
[0043] The first stepper motor 54 is started, the output end of the motor drives the X-axis moving lead screw 51 to rotate, and the cutting device 4 moves along the X-axis direction due to the threaded connection with the lead screw, thereby realizing the cutting of the pipe material; at the same time, the Y-axis assembly 55 is used in cooperation with the first stepper motor 54; if cutting in different directions is needed, the Y-axis assembly 55 can adjust the position of the X-axis support 52, so as to change the cutting direction of the cutting device 4, so as to realize the required cutting shape and size; after the cutting device 4 completes the predetermined cutting path, the reset program is started subsequently, the Y-axis assembly 55 and the first stepper motor 54 are used in cooperation to adjust the two X-axis supports 52 to return to the initial position, and the reset operation is completed; at this time, the cutting quality can be checked, and further processing or dissection can be performed according to the needs.
[0044] Through the connection of the connecting platform 1, the fixing member 3 and the cutting device 4, the equipment realizes automatic cutting, uses mechanical devices instead of traditional manual operation, significantly reduces the safety risk in the operation process, improves the operation safety, reduces the labor intensity of the operator, improves the work efficiency, has strong adaptability, can be applied to the dissection of joints with different diameters and structures, improves the universality and practicality of the equipment, and has simple structure, convenient manufacturing and low cost.
[0045] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. A simple anatomical conduit joint apparatus, characterized by: The utility model provides a cutting device for test pipe, including connecting platform (1), be provided with the fixing piece (3) and cutting device (4) for fixing and cutting test pipe material (2) on connecting platform (1), be provided with drive mechanism (5) for driving cutting device (4) moves on connecting platform (1), drive mechanism (5) includes X axis moving screw rod (51), two X axis support (52), X axis guide rod (53) and first step motor (54), two X axis support (52) are arranged respectively in the length direction of connecting platform (1) two sides, both ends of X axis moving screw rod (51) are rotatably connected on two X axis support (52), and first step motor (54) is arranged on one X axis support (52), and the output end of first step motor (54) is connected on the end of X axis moving screw rod (51), and cutting device (4) is threadedly connected on X axis moving screw rod (51), both ends of X axis guide rod (53) are connected on two X axis support (52), and cutting device (4) is slidably connected on X axis guide rod (53), and drive mechanism (5) further includes Y axis component (55) for driving two X axis support (52) moves along Y axis direction.
2. A simple dissection conduit joint device according to claim 1, characterized in that: Y axis component (55) includes two Y axis moving screw rod (551), two Y axis support (552), two Y axis guide rod (553) and two second step motor (554), two Y axis support (552) are connected on connecting platform (1), two Y axis moving screw rod (551) correspond to two Y axis support (552) respectively, both ends of Y axis moving screw rod (551) are threadedly connected on corresponding Y axis support (552) respectively, Y axis moving screw rod (551) is vertically arranged with X axis moving screw rod (51), two second step motor (554) are arranged on two Y axis support (552), and the output end of two second step motor (554) is connected on corresponding Y axis moving screw rod (551) respectively, two X axis support (52) are threadedly connected on two Y axis moving screw rod (551) respectively, two Y axis guide rod (553) are connected on two Y axis support (552) respectively, Y axis guide rod (553) is arranged in parallel with Y axis moving screw rod (551), and corresponding X axis support (52) is slidably connected on Y axis guide rod (553).
3. A simple dissection conduit joint apparatus according to claim 2, wherein: Any one X axis support (52) includes sliding block (521) and fixed plate (522), the sliding block (521) is threadedly connected on corresponding Y axis moving screw rod (551), the fixed plate (522) is connected on the bottom of sliding block (521), and both ends of X axis moving screw rod (51) are rotatably connected on the fixed plate (522) of two X axis support (52) respectively.
4. A simple dissection conduit joint device according to claim 3, characterized in that: The number of X axis guide rod (53) is two, and two X axis guide rod (53) is arranged in parallel on the fixed plate (522) of two X axis support (52), and the first guide hole (6) is set through cutting device (4) for X axis guide rod (53) to pass through.
5. A simple dissection conduit joint apparatus according to claim 2, characterized in that: Any one of the Y-axis support (552) comprises two L-shaped supports (5521), two L-shaped supports (5521) are oppositely arranged on the connecting platform (1), and the two ends of the Y-axis moving screw rod (551) are rotatably connected to the two L-shaped supports (5521) of the corresponding Y-axis support (552) respectively.
6. A simple dissection conduit joint apparatus according to claim 5, wherein: The two ends of the Y-axis guide rod (553) are connected to the two L-shaped supports (5521) of the corresponding Y-axis support (552) respectively, and a second guide hole (7) for the Y-axis guide rod (553) to pass through is formed in the slider (521) of the X-axis support (52).
7. A simple dissection conduit joint apparatus as defined in claim 2, wherein: An electric control box (8) for controlling the first step motor (54) and the second step motor (554) is arranged on the connecting platform (1).
8. A simple dissection conduit joint apparatus according to claim 1, characterized in that: The fixing member (3) comprises a plurality of fixing belts (31), and the plurality of fixing belts (31) are sequentially and spacedly arranged along the length direction of the connecting platform (1), and a fixing area for the test pipe (2) is formed between any one of the fixing belts (31) and the connecting platform (1).