CIPP pipeline repair compressive strength detection device

Abstract

The invention relates to the field of pipeline strength testing, in particular to a CIPP pipeline repair compressive strength detection device which comprises a mounting table, the mounting table is composed of a transversely-arranged placing frame and a vertically-arranged placing frame in a matched mode, a hydraulic cylinder is mounted on the lower side of an upper top plate of the vertically-arranged placing frame, the telescopic end of the hydraulic cylinder is arranged downwards, and a pressing frame is connected to the telescopic end of the hydraulic cylinder; a fixing seat is arranged on the upper side of the left portion of the transversely-arranged placing frame, a sleeve is rotationally connected to the fixing seat, a protection mechanism used for conducting strength pressing and preventing a pipeline from being broken and splashed is arranged on the pressing frame, and an inclining mechanism used for flatly placing the sleeve and inclining the sleeve is arranged between the pressing frame and the sleeve. By arranging the sleeve capable of being automatically overturned to an inclined posture, a long pipeline easily slides in place by virtue of gravity, and the pressing frame descending linkage mechanism is used for driving the sleeve to accurately rotate to a horizontal test position, so that integrated automatic conversion of loading, positioning and test postures is realized, and the operation process is greatly simplified.

Description

Technical Field

[0001] This invention relates to the field of pipeline strength testing, and more particularly to a device for testing the compressive strength of CIPP pipeline repair. Background Technology

[0002] In pipeline repair operations in municipal water supply and drainage, petrochemical and other fields, CIPP (Compact In-Situ Curing) is a mainstream trenchless repair technology. The compressive strength of the composite pipeline formed after repair is a core performance indicator for evaluating repair quality and service reliability. Currently, the industry generally lacks dedicated compressive strength testing equipment for such repaired pipelines. Most tests are conducted using general-purpose universal pressure testing machines or self-made simple devices. General-purpose equipment has obvious limitations: First, clamping and aligning long pipe sections of samples is difficult, making it hard to ensure uniform axial force and affecting data accuracy; second, fragments are easily scattered when the pipeline fractures during the test, posing a serious safety hazard; third, cleaning debris remaining in the support after testing is extremely inconvenient, seriously affecting continuous testing efficiency. These pain points restrict the improvement of quality control efficiency. Therefore, developing a dedicated compressive strength testing device that integrates convenient clamping, safety protection and automatic cleaning has significant engineering application value. Summary of the Invention

[0003] To overcome the shortcomings of existing devices, this invention provides a CIPP pipeline repair compressive strength testing device.

[0004] The technical implementation of the present invention is as follows: a CIPP pipe repair compressive strength testing device, comprising an installation platform, the installation platform being composed of a horizontal placement frame and a vertical placement frame, a hydraulic cylinder being installed on the lower side of the top plate of the vertical placement frame, the telescopic end of the hydraulic cylinder being oriented downwards, a pressure frame being connected to the telescopic end of the hydraulic cylinder, a fixed seat being provided on the upper left side of the horizontal placement frame, a sleeve being rotatably connected to the fixed seat, a protective mechanism for performing strength pressing and preventing pipe breakage and splashing being provided on the pressure frame, and an tilting mechanism for flattening and tilting the sleeve being provided between the pressure frame and the sleeve.

[0005] More preferably, the protective mechanism includes sliding rods, and two symmetrical sliding rods are slidably connected to the pressure frame. Each sliding rod has a protective frame connected to its bottom. The protective frame has a U-shaped structure that can fully cover the middle of the sleeve. A limit block is provided at the top of the sliding rod, and a spring is connected between the limit block and the pressure frame. Each spring is sleeved on the upper end of the corresponding sliding rod.

[0006] More preferably, the tilting mechanism includes a fixed frame, with fixed frames installed on both the front and rear sides of the pressure frame. A connecting rod is connected between the left sides of the fixed frames, and a rotating track frame is rotatably connected to the right side of each fixed frame. The rotating track frame engages with the protrusions on the front and rear sides of the right end of the sleeve. When the rotating track frame is flipped outward, it can disengage from the protrusions. As the fixed frame moves downward, the rotating track frame will drive the sleeve to reverse downward, thus becoming parallel to the horizontally placed placement frame.

[0007] More preferably, it also includes a blocking mechanism, which includes a blocking cylinder. The blocking cylinder is provided on the left side of the sleeve. The blocking cylinder has a positioning groove. A clamping plate is rotatably connected to the blocking cylinder. A protrusion is provided on the inner side of the clamping plate. The protrusion can engage with the positioning groove to fix the clamping plate. The clamping plate is used to block the CIPP pipe and prevent the CIPP pipe from sliding out directly when the sleeve is placed in an inclined state.

[0008] More preferably, it also includes a clamping mechanism, which includes a fixed plate. The fixed plate is connected to the right side of the horizontally placed frame. A bidirectional lead screw is rotatably connected to the fixed plate. Both ends of the bidirectional lead screw have handles. Two clamping plates are threadedly connected to the bidirectional lead screw, and the bottom of the clamping plates is in contact with the upper side of the fixed plate.

[0009] More preferably, it also includes a vibration mechanism, which includes an arc-shaped plate. The arc-shaped plate is connected to the lower side of the clamping plate. A protrusion is provided on the upper side of the arc-shaped plate, and a groove is opened on the lower side of the blocking cylinder. The protrusion can engage with the groove. When the clamping plate is slid to the left to remove it, the protrusion can continuously engage with the groove to vibrate, thereby facilitating the guidance and discharge of residual debris inside the sleeve.

[0010] More preferably, it also includes a locking mechanism, which includes a limiting member. The limiting member is connected to the outer side of the rotating track frame, and a locking member is slidably connected to the limiting member. When the locking member slides to the right, it releases the locking of the rotating track frame.

[0011] More preferably, the vertically placed shelf is perpendicular to the horizontally placed shelf.

[0012] More preferably, the sleeve has a hollowed-out section in the middle to facilitate the exposure of the CIPP pipe for compressive strength testing.

[0013] More preferably, the card plate and the blocking cylinder are detachable, and the card plate can be detached by pulling it to the left.

[0014] By adopting the above technical solution, the present invention has the following advantages compared with the prior art: 1. This invention features a sleeve that can automatically flip to an inclined position, allowing long pipes to slide into place easily by gravity. The sleeve is then driven to rotate precisely to a horizontal testing position by a downward linkage mechanism of the pressure frame. This achieves an integrated automatic conversion of loading, positioning, and testing postures, greatly simplifying the operation process. Its integrated high-rigidity clamping mechanism ensures testing stability, while the U-shaped protective cover with buffer effectively solves the safety hazard of flying debris, significantly improving testing efficiency and safety.

[0015] 2. This invention, by setting a linkage vibration structure on the blocking mechanism, automatically generates high-frequency mechanical vibration during the disassembly of the card plate, which can efficiently shake off and guide the removal of residual debris deposited inside the sleeve, solving the problem of difficult cleaning after testing and ensuring the equipment's long-term stable cleanliness and continuous testing capability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the protective mechanism of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the tilting mechanism of the present invention.

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the blocking mechanism of the present invention.

[0020] Figure 5 This is a schematic diagram of the first partial three-dimensional structure of the blocking mechanism of the present invention.

[0021] Figure 6 This is a schematic diagram of the second partial three-dimensional structure of the blocking mechanism of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0023] Figure 8 This is a schematic diagram of the first partial three-dimensional structure of the vibration mechanism of the present invention.

[0024] Figure 9 This is a schematic diagram of the second partial three-dimensional structure of the vibration mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the locking mechanism of the present invention.

[0026] The components in the attached diagram are labeled as follows: 1. Mounting platform, 2. Hydraulic cylinder, 3. Pressure frame, 4. Fixed seat, 5. Sleeve, 6. Protective mechanism, 61. Protective frame, 62. Sliding rod, 63. Spring, 7. Tilting mechanism, 71. Fixed frame, 72. Connecting rod, 73. Rotating track frame, 8. Blocking mechanism, 81. Blocking cylinder, 82. Clamping plate, 83. Positioning groove, 9. Clamping mechanism, 91. Fixed plate, 92. Two-way lead screw, 93. Clamping plate, 10. Vibration mechanism, 101. Arc plate, 102. Protrusion, 103. Groove, 11. Locking mechanism, 111. Limiting component, 112. Clamping component. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] A device for testing the compressive strength of CIPP pipe repair, such as Figures 1-10 As shown, the system includes an installation platform 1, which consists of a horizontal placement frame and a vertical placement frame. The vertical placement frame is perpendicular to the horizontal placement frame. A hydraulic cylinder 2 is installed on the lower side of the top plate of the vertical placement frame, with the extension end of the hydraulic cylinder 2 facing downwards. A pressure frame 3 is connected to the extension end of the hydraulic cylinder 2. A fixed seat 4 is installed on the upper left side of the horizontal placement frame, and a sleeve 5 is rotatably connected to the fixed seat 4. The sleeve 5 has a hollowed-out section in the middle to expose the CIPP pipe for pressure strength testing. The pressure frame 3 is equipped with a protective mechanism 6 for applying pressure and preventing the pipe from breaking and splashing. A tilting mechanism 7 is provided between the pressure frame 3 and the sleeve 5 to flatten and tilt the sleeve 5. The protective mechanism 6 includes a sliding rod 62, and two symmetrical sliding rods are slidably connected to the pressure frame 3. The bottom of the moving rod 62 and the sliding rod 62 are both connected to a protective frame 61. The protective frame has a U-shaped structure and can fully cover the middle of the sleeve 5. The top of the sliding rod 62 is provided with a limit block. A spring 63 is connected between the limit block and the pressure frame 3. The spring 63 is sleeved on the upper end of the corresponding sliding rod 62. The tilting mechanism 7 includes a fixed frame 71. Fixed frames 71 are installed on the front and rear sides of the pressure frame 3. A connecting rod 72 is connected between the left sides of the fixed frames 71. A rotating track frame 73 is rotatably connected to the right side of the fixed frames 71. The rotating track frame 73 is engaged with the protrusions on the front and rear sides of the right end of the sleeve 5. When the rotating track frame 73 is flipped outward, it can disengage from the protrusions. As the fixed frame 71 moves downward, the rotating track frame 73 will drive the sleeve 5 to reverse downward, thus becoming parallel to the horizontally placed frame.

[0029] It also includes a blocking mechanism 8, which includes a blocking cylinder 81. The blocking cylinder 81 is located on the left side of the sleeve 5. The blocking cylinder 81 has a positioning groove 83. A clamping plate 82 is rotatably connected to the blocking cylinder 81. The clamping plate 82 and the blocking cylinder 81 are detachable. Pulling the clamping plate 82 to the left can disassemble it. The inner side of the clamping plate 82 has a protrusion that can engage with the positioning groove 83 to fix the clamping plate 82. The clamping plate 82 is used to block the CIPP pipe and prevent the CIPP pipe from sliding out directly when the sleeve 5 is placed in an inclined state.

[0030] It also includes a clamping mechanism 9, which includes a fixed plate 91. The fixed plate 91 is connected to the right side of the horizontally placed frame. A bidirectional lead screw 92 is rotatably connected to the fixed plate 91. Both ends of the bidirectional lead screw 92 have handles. Two symmetrical clamping plates 93 are threadedly connected to the bidirectional lead screw 92. The bottom of the clamping plates 93 is in contact with the upper side of the fixed plate 91.

[0031] It also includes a vibration mechanism 10, which includes an arc plate 101. The lower side of the clamping plate 82 is connected to the arc plate 101. The upper side of the arc plate 101 is provided with a protrusion 102. The lower side of the blocking cylinder 81 has a groove 103. The protrusion 102 can engage with the groove 103. When the clamping plate 82 is slid to the left to remove it, the protrusion 102 can continuously engage with the groove 103 to vibrate, which facilitates the guidance and discharge of residual debris in the sleeve 5.

[0032] It also includes a locking mechanism 11, which includes a limit member 111. The limit member 111 is connected to the outer side of the rotating track frame 73. Each limit member 111 is slidably connected to a locking member 112. When the locking member 112 slides to the right, it releases the lock on the rotating track frame 73.

[0033] It should be noted that the working principle of this CIPP pipe repair compressive strength testing device begins with the loading of the CIPP pipe to be tested. At this time, the sleeve 5 is engaged with the rotating track frame 73 in the tilting mechanism 7 by the protrusions on the front and rear sides of its right end, and is firmly locked at a preset tilt angle. The sole purpose of this tilting posture is to greatly facilitate the operator to easily, accurately and effortlessly insert the long CIPP pipe into the internal cavity of the sleeve 5. The pipe is inserted from the opening of the blocking cylinder 81 at the left end, and relies on its own gravity and the natural sliding characteristics of the tilt angle to smoothly slide to its final test position. The right end of the pipe will slightly protrude from the right opening of the sleeve 5. Immediately afterwards, the operator needs to operate the blocking mechanism 8 to test the pipe. The left end is restrained to prevent it from slipping. Specifically, the clamping plate 82 is precisely inserted into the corresponding positioning groove 83 on the blocking cylinder 81 through its inner protrusion, thus reliably fixing the clamping plate 82 on the blocking cylinder 81. This process ensures that the pipeline will not accidentally come off the left end of the sleeve 5 in all subsequent operation steps, providing preliminary safety and stability assurance for the entire testing process. After the initial loading and fixing of the pipeline is completed, the device is ready to enter the core pressure strength test stage. At this time, the sleeve 5, which is in an inclined state, needs to be flattened for a standard horizontal pressure test. This is achieved by operating the tilting mechanism 7. First, the hydraulic cylinder 2 is activated, and its telescopic end begins to extend downward smoothly and powerfully. This action drives the corresponding... The rigidly connected pressure frame 3 moves downward along the guide rail of the vertically placed frame. The fixed frames 71 installed on the front and rear sides of the pressure frame 3, and the rotating track frame 73 connected to the right side of the fixed frame 71, also move downward synchronously with the pressure frame 3. As the pressure frame 3 continues to move downward steadily, these synchronously moving rotating track frames 73 generate a force on the right end of the sleeve 5. This force precisely pushes the right end of the sleeve 5 around the fixed seat 4 at its left end, initiating rotation. The sleeve 5 then gradually reverses downward from its initial inclined state, with the angle of rotation increasing until, finally, when the pressure frame 3 reaches a specific lower stop point in its stroke, the sleeve 5 is rotated to a completely horizontal state, its lower surface aligned with the lower surface. After the upper surface of the horizontal placement frame is perfectly parallel, the operator needs to release the mechanical lock of the tilting mechanism 7. This is done by operating the locking mechanism 11 installed on the outside of the rotating track frame 73, and sliding the clip 112, which is slidably connected to the limiting member 111, to the right, so that it is completely released from the constraint state on the rotating track frame 73. Then, the operator can gently flip the two rotating track frames 73 outwards by hand to completely disengage them from the protrusion on the right end of the sleeve 5, so as to avoid damage to the structure during subsequent testing. Once the sleeve 5 is reliably adjusted and stabilized in an absolutely horizontal test posture, the operator must immediately operate the clamping mechanism 9 to finally and firmly fix the right end of the pipe, which is now exposed outside the right opening of the sleeve 5.Personnel rotate the handles at both ends of the double-ended screw 92, which is connected to the right-side fixed plate 91 of the horizontal placement frame, to drive the two clamping plates 93, which are threaded onto the screw, to move in opposite directions along the upper surface of the fixed plate 91. These two clamping plates 93, like mechanical hands, tightly and evenly clamp the right end of the CIPP pipe from both sides. This action ensures that the entire pipe will not experience any slight axial movement, rotation, or twisting during the upcoming severe pressure test, providing an absolutely stable benchmark and constraint for obtaining accurate, reliable, and repeatable compressive strength test data. After all preparations are completed, the hydraulic cylinder 2 is restarted, and its telescopic end continues to extend downwards, driving the pressure frame 3 to perform a second downward movement. The U-shaped protective frame 61 connected to the bottom of the two sliding rods 62 at the bottom of the pressure frame 3 first contacts the U-shaped protective frame 61 exposed in the sleeve 5. The upper surface of the CIPP pipe outside the perforated section comes into contact with the pressure frame 3. As the pressure frame 3 continuously and steadily applies downward pressure, the protective frame 61 will be subjected to an increasing reaction force from the pipe. This force will push the two sliding rods 62 to overcome the preload of the upper spring 63 and begin to slide upward relative to the pressure frame 3 body. The two springs 63 are thus compressed synchronously and evenly. This ingenious design ensures that the U-shaped protective frame 61 can always conform to the contour of the pipe surface and provide continuous, flexible buffering and covering protection as the pressure increases linearly. Its unique U-shaped structure can completely cover the long perforated area in the middle of the sleeve 5 without any omissions. In extreme cases where the pipe ruptures or disintegrates violently due to pressure exceeding the limit, it can effectively contain sharp fragments and particles that may be splashed at high speed, providing a crucial safety barrier for on-site operators and equipment. After the protective frame 61 contacts the pipeline and provides initial coverage and cushioning, the pressure frame 3 continues its downward stroke, applying a continuously increasing, vertically downward pressure directly to the unsupported section of the CIPP pipeline exposed in the perforation of the sleeve 5. The pump station within the hydraulic system continuously operates, supplying high-pressure oil to the hydraulic cylinder 2, thereby steadily increasing the load applied to the pipeline. This pressurization process accurately simulates the static pressure from the soil above, the dynamic load from heavy vehicle traffic, and other potential top-pressure loads that the pipeline might experience in a real buried environment. Operators monitor, record, and plot the pressure-displacement (or pressure-deformation) relationship curve in real time using pressure sensors. As the pressure value steadily increases, the pipeline first undergoes elastic deformation, then may enter a plastic deformation stage, until it finally reaches its material yield limit and exhibits significant plastic flow, or even until complete rupture and fragmentation. Throughout the pressurization process, the protective mechanism 6 silently plays a dual role: it acts as a buffer device, preventing the pressure frame 3 from causing a sudden rigid impact on the pipeline, making the pressure application process smooth and controllable; and it also serves as a safety protection device.To confine any potential destructive explosion within the semi-enclosed space it forms, after the test, the handle of the double-acting screw 92 is rotated in the opposite direction, causing the two clamping plates 93 to move in opposite directions, completely releasing the clamp on the right end of the pipe. The rotating track frame 73 is then flipped back to its original position and re-engaged with the protrusion. It is then locked by the locking piece 112. Afterward, the hydraulic cylinder 2 retracts, driving the pressure frame 3 and all its auxiliary mechanisms to return smoothly to their initial highest position. As the pressure frame 3 rises, the right end of the sleeve 5 tilts upward at a certain angle to complete its reset. Then, it slides to the left and removes the clamping plate 82 on the blocking cylinder 81. This removal action immediately triggers the vibration mechanism 10 to start working. The arc-shaped plate 101, which is fixedly connected to the lower side of the clamping plate 82, moves to the left. The specially designed protrusion 102 on it will interact with a series of grooves 10 on the lower side of the blocking cylinder 81 during the movement. 3. Continuous, cyclical insertion and removal actions generate a series of high-frequency, low-amplitude mechanical vibrations. These effective vibrations are transmitted through the clamping plate 82 and the blocking cylinder 81 to the sleeve 5 and the pipe (or pipe remnants) inside it. This greatly helps to shake off the debris, particles, or dust firmly attached to the inner and outer surfaces of the pipe or remaining in the hollow or internal corners of the sleeve 5. These are then guided to flow smoothly out from the left end opening of the sleeve 5 by gravity and vibration. This mechanism greatly facilitates the cleaning and maintenance of the equipment, preparing it for the next test. Finally, the operator can easily remove the tested CIPP pipe (or its remaining portion) from the now tilted sleeve 5 using gravity. The entire testing process is thus successfully completed, and the device is fully restored to standby mode, ready for the next pipe compressive strength test.

[0034] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A device for testing the compressive strength of CIPP pipe repair, characterized in that, The system includes an installation platform (1), which is composed of a horizontal placement frame and a vertical placement frame. A hydraulic cylinder (2) is installed on the lower side of the top plate of the vertical placement frame. The extension end of the hydraulic cylinder (2) is oriented downwards. A pressure frame (3) is connected to the extension end of the hydraulic cylinder (2). A fixed seat (4) is provided on the upper left side of the horizontal placement frame. A sleeve (5) is rotatably connected to the fixed seat (4). A protective mechanism (6) is provided on the pressure frame (3) for strong pressing and preventing the pipe from breaking and splashing. An tilting mechanism (7) is provided between the pressure frame (3) and the sleeve (5) to flatten and tilt the sleeve (5).

2. The CIPP pipeline repair compressive strength testing device according to claim 1, characterized in that, The protective mechanism (6) includes a sliding rod (62). Two sliding rods (62) are symmetrically connected to the pressure frame (3). The bottom of each sliding rod (62) is connected to a protective frame (61). The protective frame has a U-shaped structure and can fully cover the middle of the sleeve (5). A limit block is provided at the top of the sliding rod (62). A spring (63) is connected between the limit block and the pressure frame (3). The spring (63) is sleeved on the upper end of the corresponding sliding rod (62).

3. A CIPP pipeline repair compressive strength testing device according to claim 2, characterized in that, The tilting mechanism (7) includes a fixed frame (71). The fixed frame (71) is installed on both the front and rear sides of the pressure frame (3). A connecting rod (72) is connected between the left sides of the fixed frame (71). A rotating track frame (73) is rotatably connected to the right side of the fixed frame (71). The rotating track frame (73) is engaged with the protrusions on the front and rear sides of the right end of the sleeve (5). When the rotating track frame (73) is flipped outward, it can disengage from the protrusions. As the fixed frame (71) moves downward, the rotating track frame (73) will drive the sleeve (5) to reverse downward, and thus become parallel to the horizontally placed frame.

4. A CIPP pipeline repair compressive strength testing device according to claim 3, characterized in that, It also includes a blocking mechanism (8), which includes a blocking cylinder (81). The blocking cylinder (81) is provided on the left side of the sleeve (5). The blocking cylinder (81) has a positioning groove (83). A clamping plate (82) is rotatably connected to the blocking cylinder (81). A protrusion is provided on the inner side of the clamping plate (82). The protrusion can engage with the positioning groove (83) to fix the clamping plate (82). The clamping plate (82) is used to block the CIPP pipe and prevent the CIPP pipe from sliding out directly when the sleeve (5) is placed in an inclined state.

5. A CIPP pipeline repair compressive strength testing device according to claim 4, characterized in that, It also includes a clamping mechanism (9), which includes a fixed plate (91). The fixed plate (91) is connected to the right side of the horizontally placed frame. A two-way lead screw (92) is rotatably connected to the fixed plate (91). Both ends of the two-way lead screw (92) are equipped with handles. Two clamping plates (93) are threadedly connected to the two-way lead screw (92) and are symmetrically arranged. The bottom of the clamping plate (93) is in contact with the upper side of the fixed plate (91).

6. A CIPP pipeline repair compressive strength testing device according to claim 5, characterized in that, It also includes a vibration mechanism (10), which includes an arc plate (101). The lower side of the clamping plate (82) is connected to the arc plate (101). The upper side of the arc plate (101) is provided with a protrusion (102). The lower side of the blocking cylinder (81) has a groove (103). The protrusion (102) can engage with the groove (103). When the clamping plate (82) is slid to the left to remove it, the protrusion (102) can continuously engage with the groove (103) to vibrate, which facilitates the discharge of residual debris in the sleeve (5).

7. A CIPP pipeline repair compressive strength testing device according to claim 6, characterized in that, It also includes a locking mechanism (11), which includes a limiting member (111). The limiting member (111) is connected to the outside of the rotating track frame (73). Each limiting member (111) is slidably connected to a locking member (112). The locking member (112) slides to the right to release the locking of the rotating track frame (73).

8. A CIPP pipeline repair compressive strength testing device according to claim 1, characterized in that, The vertically placed shelf is perpendicular to the horizontally placed shelf.

9. A CIPP pipeline repair compressive strength testing device according to claim 1, characterized in that, The sleeve (5) has a hollowed-out section in the middle to facilitate the exposure of the CIPP pipe for compressive strength testing.

10. A CIPP pipeline repair compressive strength testing device according to claim 4, characterized in that, The card plate (82) and the blocking cylinder (81) are detachable. Pulling the card plate (82) to the left can disassemble them.

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