High strength corrosion resistant fully grouted sleeve

Abstract

The application relates to the technical field of full grouting sleeves, in particular to a high-strength corrosion-resistant full grouting sleeve. The technical scheme comprises a sleeve body, a grout discharging port and a grout inlet port arranged at the upper and lower ends of the sleeve body respectively, a sealing part fixedly installed on the grout inlet port, the sealing part comprising a connecting pipe detachably installed on the grout inlet port, a support plate fixedly installed on the connecting pipe and having a diameter larger than that of the connecting pipe, a first plugging ring slidably installed in a groove arranged on the support plate, and a sealing plate slidably installed on the support plate and having a diameter larger than that of the connecting pipe, the sealing plate being provided with a second plugging ring matched with the groove. The application can complete plugging under the pressure of a grouting device without disconnecting the connection with a grouting pipe, thereby effectively preventing the slurry in the sleeve from seeping out from the grout discharging port under the action of gravity or residual pressure after the grouting pipe is disconnected, preventing the formation of a cavity in the upper part of the sleeve, and further preventing the weakening of the anchoring force of the steel bar.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of full grouting sleeve, in particular to a high-strength corrosion-resistant full grouting sleeve. BACKGROUND

[0002] Full grouting sleeve is a key mechanical connecting component for reliable connection of steel bars in building engineering, especially in fabricated concrete structure, and its core function is to connect the steel bars protruding from adjacent components when prefabricated concrete components such as columns, walls and beams are spliced, so as to form a continuous whole capable of effectively transmitting tension, pressure and even bending moment, thereby ensuring the safety and integrity of the structure.

[0003] Full grouting sleeve includes a metal sleeve made of high-strength steel material, specially configured grouting material, and steel bars inserted from both ends of the sleeve. After grouting and pressure maintaining, the grouting port needs to be plugged, which is a key link to ensure that the grouting material inside the sleeve is full and dense.

[0004] In the existing device, when plugging the grouting port, the grouting pipe is generally detached after pressure maintaining, and the plugging is quickly performed. If the plugging action is not fast enough, the grouting material inside the sleeve may seep out or flow back from the grouting port under the action of gravity or residual pressure, because the flowability of the grouting material is still high before initial setting. This will cause a hollow space to be formed in the upper part of the sleeve, which will directly weaken the anchoring force of the steel bar. SUMMARY

[0005] The present application aims to solve the problems in the background art and provides a high-strength corrosion-resistant full grouting sleeve that can plug the grouting port when the grouting pipe is not detached from the grouting port, thereby preventing the grouting material from leaking out and causing a hollow space in the sleeve.

[0006] The technical solution of the present application is a high-strength corrosion-resistant full grouting sleeve, which comprises a sleeve body, a grouting port and a discharge port arranged at the upper and lower ends of the sleeve body, and further comprises:

[0007] A sealing component fixedly installed on the grouting port, the sealing component comprises a connecting pipe detachably installed on the grouting port, a support plate fixedly installed on the connecting pipe and having a diameter larger than that of the connecting pipe, a first plugging ring slidably installed in a groove on the support plate, and a sealing plate slidably installed on the support plate and having a diameter larger than that of the connecting pipe, the sealing plate being provided with a second plugging ring matched with the groove.

[0008] The sealing component further comprises a limiting assembly limiting the initial position of the first plugging ring and a connecting piece controlling the synchronous movement of the first plugging ring and the sealing plate after they are in contact.

[0009] The connecting pipe is provided with a communicating pipe, and a release cylinder is fixedly installed on the communicating pipe.

[0010] Optionally, the support plate is detachably provided with a plugging sleeve, one end of the plugging sleeve is provided with a connecting head, and the connecting head is connected with the grouting device.

[0011] Optionally, a plurality of first connecting shafts are slidingly installed on the support plate, a first connecting ring is fixedly installed on the plurality of first connecting shafts, the limiting component comprises a baffle provided on the first connecting ring, and a pull rod is rotatably installed on the connecting head.

[0012] Optionally, a plurality of second connecting shafts are slidingly installed on the support plate, a second connecting ring is fixedly installed on the plurality of second connecting shafts, the connecting piece comprises a plurality of abutting blocks provided on the second connecting ring, and the abutting blocks are in contact with the first connecting ring.

[0013] Optionally, the release transmission mechanism comprises a partition plate slidingly installed in the release cylinder, and a round rod is fixedly installed on the partition plate.

[0014] Optionally, the release transmission mechanism further comprises a first transmission cylinder detachably connected to the release cylinder through a support rod, a first plugging plate is slidingly installed in the first transmission cylinder, a first transmission rod is fixedly installed on the first plugging plate, the first transmission rod is detachably connected with the round rod, a second transmission cylinder is fixedly installed on the plugging sleeve, a second plugging plate is slidingly installed in the second transmission cylinder, a second transmission rod is fixedly installed on the second plugging plate, a connecting block is fixedly installed on the second connecting ring, and the second transmission rod is detachably connected with the connecting block.

[0015] Optionally, a conveying pipe is fixedly installed at both ends of the first transmission cylinder, the other end of the conveying pipe is in communication with both ends of the second transmission cylinder, and a transmission medium is filled in the first transmission cylinder, the second transmission cylinder and the conveying pipe, and a valve is fixedly installed on one of the conveying pipes.

[0016] Optionally, an internally threaded rod is fixedly installed on one side of the support plate, and a jack rod for limiting the second connecting ring is threadedly connected in the internally threaded rod.

[0017] Optionally, the connecting pipe, the support plate and the release cylinder can be symmetrically divided into two parts, one part of the connecting pipe, the support plate and the release cylinder are provided with a connecting groove, the other part of the connecting pipe, the support plate and the release cylinder are fixedly provided with a connecting strip, and the two parts of the connecting pipe, the support plate and the release cylinder are fixedly connected through fasteners.

[0018] Optionally, the two ends of the barrel body are fixedly installed with a sealing plug, and a reinforcing steel bar is fixedly installed in the sealing plug.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] The present application cooperates the groove and the sealing ring, and uses the limiting assembly and the release transmission mechanism, so that the grouting port is sealed without disconnecting the connection with the grouting pipe after grouting, and the sealing is completed under the pressure of the grouting device, thereby effectively preventing the slurry in the sleeve from seeping out from the grouting port under the action of gravity or residual pressure after the grouting pipe is disconnected, preventing the formation of a hollow in the upper part of the sleeve, and further preventing the weakening of the reinforcement anchoring force. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Structure diagram of the full grouting sleeve Figure One ;

[0022] Figure 2 Structure diagram of the full grouting sleeve Figure Two ;

[0023] Figure 3 Structure diagram of the sealing component Figure One ;

[0024] Figure 4 Structure diagram of the sealing component Figure Two ;

[0025] Figure 5 Structure diagram of the sealing component Figure Three ;

[0026] Figure 6 Structure diagram of the sealing component Figure Four ;

[0027] Figure 7 Structure diagram of the sealing component Figure Five ;

[0028] Figure 8 Structure diagram of the connecting pipe, support plate and release barrel Figure One ;

[0029] Figure 9 Structure diagram of the connecting pipe, support plate and release barrel Figure Two ;

[0030] Figure 10 Structure diagram of the sealing sleeve.

[0031] Fig. 1, barrel; 101, discharge port; 102, inlet port; 103, blocking plug; 2, reinforcing bar; 3, sealing component; 301, connecting pipe; 302, support plate; 303, groove; 304, first blocking ring; 305, blocking plate; 306, second blocking ring; 307, first connecting shaft; 308, first connecting ring; 309, second connecting shaft; 310, second connecting ring; 311, baffle; 312, pull rod; 313, communicating pipe; 314, release barrel; 315, partition plate; 316, round rod; 317, support rod; 318, first transmission barrel; 319, first blocking plate; 320, first transmission rod; 321, second transmission barrel; 322, second blocking plate; 323, second transmission rod; 324, connecting block; 325, conveying pipe; 326, valve; 327, internally threaded rod; 328, ejector rod; 329, blocking sleeve; 330, connector; 331, abutting block; 4, connecting groove; 401, connecting strip; 402, fastener. DETAILED DESCRIPTION

[0032] The technical solutions of the present application are further described below in combination with the drawings and specific embodiments.

[0033] As shown in Figure 1 and Figure 2 , the present application proposes a high-strength corrosion-resistant full grouting sleeve, which comprises a barrel 1 made of austenitic stainless steel, which can improve the tensile strength and service life, and is suitable for corrosive environments. The upper and lower ends of the barrel 1 are respectively provided with a discharge port 101 and an inlet port 102, and the two ends of the barrel 1 are fixedly installed with blocking plugs 103, and the blocking plugs 103 are fixedly installed with reinforcing bars 2. By inserting two reinforcing bars 2 to be connected into the two ends of the barrel 1, through the discharge port 101 and the inlet port 102 reserved on the sleeve, using special equipment to inject grouting material into the inner cavity of the barrel 1 under pressure, the grouting material completely fills all the gaps inside the barrel 1 and between the reinforcing bars and the inner wall of the sleeve, and the grouting material solidifies and hardens in the barrel 1. The solidified grouting material forms a strong mechanical interlocking force with the inner wall of the sleeve, and at the same time forms a firm chemical bonding force and friction force with the surface of the reinforcing bar 2, so that the load is mainly transmitted through the bonding of the grouting material and the reinforcing bar 2 and the mechanical interlocking of the grouting material and the inner rib of the barrel 1, and the barrel 1 itself also provides restraint and auxiliary force transmission.

[0034] As an embodiment, as shown in Figures 2 to 6As shown, the full grouting sleeve of the embodiment further comprises a sealing component 3 fixedly installed on the grouting inlet 102. After grouting is completed in the inner part of the sleeve body 1, the grouting inlet 102 needs to be plugged. The sealing component 3 can plug the grouting inlet 102 when the grouting pipe is not pulled out. The sealing component 3 comprises a connecting pipe 301 detachably installed on the grouting inlet 102, a support plate 302 fixedly installed on the connecting pipe 301 and having a diameter larger than that of the connecting pipe 301, a first plugging ring 304 slidably installed in a groove 303 on the support plate 302, and a sealing plate 305 slidably installed on the support plate 302 and having a diameter larger than that of the connecting pipe 301. The sealing plate 305 is provided with a second plugging ring 306 matched with the groove 303. The grouting material will enter the inner part of the grouting inlet 102 through one side of the sealing plate 305, the support plate 302 and the connecting pipe 301 in sequence, so that the grouting material can enter the inner part of the sleeve body 1.

[0035] It should be noted that the sealing plate 305 cannot move when grouting is performed. When grouting is completed, the sealing plate 305 is removed from the limiting position, and the sealing plate 305 moves under the pressure applied by the grouting device, so that the sealing plate 305 drives the second plugging ring 306 to gradually enter the inner part of the groove 303, and the sealing plate 305 plugs the connecting pipe 301, thereby completing the plugging of the grouting inlet 102. Through the arrangement of the groove 303 and the second plugging ring 306, the plugging effect can be effectively improved, and the gap between the sealing plate 305 and the support plate 302 can be prevented, so that the problem of grouting leakage is avoided.

[0036] As an implementation manner, as shown in Figure 10 As shown, the support plate 302 is detachably provided with a plugging sleeve 329. One end of the plugging sleeve 329 is provided with a connecting head 330 connected with the grouting device. The grouting material is input into the inner part of the plugging sleeve 329 through the connecting head 330 of the grouting device, so that the grouting material enters the connecting pipe 301 through the gap between the plugging sleeve 329 and the sealing plate 305.

[0037] As an implementation manner, as shown in Figures 2 to 6 As shown, the sealing component 3 further comprises a limiting assembly limiting the initial position of the first plugging ring 304 and a connecting piece synchronously moving after the first plugging ring 304 contacts the sealing plate 305. When the grouting material enters the inner part of the plugging sleeve 329, the pressure is applied to the sealing plate 305, so that the sealing plate 305 is pushed to move. During the grouting stage, it is necessary to ensure that the sealing plate 305 does not move, so that the grouting material can effectively and quickly enter the inner part of the sleeve body 1. It is also necessary to ensure that the first plugging ring 304 does not move in advance, so that the grouting material does not enter the inner part of the groove 303. This will cause the inner part of the groove 303 to be filled with the grouting material, so that the second plugging ring 306 cannot enter the inner part of the groove 303.

[0038] Further, a plurality of first connecting shafts 307 are slidingly installed on the support plate 302, a first connecting ring 308 is fixedly installed on the plurality of first connecting shafts 307, and the other end of the first connecting shaft 307 is fixedly connected with the first blocking ring 304. When the first blocking ring 304 moves, the first connecting shaft 307 and the first connecting ring 308 are driven to move. The first blocking ring 304 is positioned by positioning the first connecting ring 308. The positioning assembly includes a baffle 311 provided on the first connecting ring 308. A pull rod 312 is rotatably installed on a connecting head 330. The pull rod 312 is abutted against the outer side of the baffle 311 by rotating the pull rod 312, so that the pull rod 312 positions the baffle 311, and further positions the first blocking ring 304.

[0039] Further, a plurality of second connecting shafts 309 are slidingly installed on the support plate 302, a second connecting ring 310 is fixedly installed on the plurality of second connecting shafts 309, and the other end of the second connecting shaft 309 is fixedly connected with the sealing plate 305. The connecting member includes a plurality of abutting blocks 331 provided on the second connecting ring 310. When the sealing plate 305 moves, the second connecting ring 310 is driven to move by the second connecting shaft 309. When the second connecting ring 310 moves to the position in contact with the first connecting ring 308, the first blocking ring 304 is released from the position by rotating the pull rod 312, so that the sealing plate 305 drives the first blocking ring 304 to move. The inside of the groove 303 is prevented from being filled with grouting material in advance, so that the sealing plate 305 cannot be effectively sealed.

[0040] As shown in Figures 2 to 6 In the embodiment, when the sealing plate 305 moves to the position close to the grouting inlet 102, and the second blocking ring 306 is in contact with the sealing plate 305, the space on the side close to the connecting pipe 301 is reduced by continuously moving the sealing plate 305. The grouting material cannot be compressed, so the volume inside the connecting pipe 301 needs to be increased to ensure that the sealing plate 305 can effectively move. A communication pipe 313 is provided on the connecting pipe 301. A release cylinder 314 is fixedly installed on the communication pipe 313. A release transmission mechanism for controlling the volume inside the release cylinder 314 and synchronously moving the sealing plate 305 when the volume of the release cylinder 314 is released is connected to the release cylinder 314. The volume inside the connecting pipe 301 is increased when the sealing plate 305 moves, so that the sealing plate 305 can smoothly move.

[0041] Further, the release transmission mechanism comprises a partition plate 315 slidably installed in the release cylinder 314, a round rod 316 is fixedly installed on the partition plate 315, when the partition plate 315 rises, the space below the partition plate 315 can be released, at this time, the space for the grouting material to move can be provided, and the movement of the partition plate 315 can drive the round rod 316 to move, the release transmission mechanism further comprises a first transmission cylinder 318 detachably connected to the release cylinder 314 through a support rod 317, a first blocking plate 319 is slidably installed in the first transmission cylinder 318, a first transmission rod 320 is fixedly installed on the first blocking plate 319, the first transmission rod 320 is detachably connected with the round rod 316, so that when the partition plate 315 moves, the first blocking plate 319 is synchronously driven to move, a second transmission cylinder 321 is fixedly installed on the blocking sleeve 329, a second blocking plate 322 is slidably installed in the second transmission cylinder 321, a second transmission rod 323 is fixedly installed on the second blocking plate 322, a connecting block 324 is fixedly installed on the second connecting ring 310, and the second transmission rod 323 is detachably connected with the connecting block 324, so that when the blocking plate 305 moves, the second blocking plate 322 is synchronously driven to move.

[0042] It should be noted that the two ends of the first transmission cylinder 318 are fixedly installed with conveying pipes 325, the other ends of the conveying pipes 325 are respectively communicated with the two ends of the second transmission cylinder 321, the first transmission cylinder 318, the second transmission cylinder 321 and the conveying pipes 325 are all filled with transmission medium, the transmission medium is a liquid that cannot be compressed in the working environment, after the grouting work in the cylinder body 1 is completed and the connecting pipe 301 is blocked, the moving blocking plate 305 will make the grouting material in the connecting pipe 301 enter the release cylinder 314 through the communicating pipe 313 and drive the partition plate 315 to move, and then drive the first blocking plate 319 to move, the moving first blocking plate 319 will extrude the transmission medium, drive the second blocking plate 322 to move through the transmission of the transmission medium, and then drive the blocking plate 305 to move through the second transmission rod 323, so that the blocking plate 305 and the partition plate 315 move synchronously, preventing the grouting material from directly entering the release cylinder 314 through the gap between the blocking plate 305 and the blocking sleeve 329.

[0043] It should be noted that the valve 326 is fixedly installed on one of the conveying pipes 325, by controlling the opening and closing of the valve 326, whether the transmission medium in the first transmission cylinder 318 and the second transmission cylinder 321 can flow to each other can be controlled, so as to control whether the first blocking plate 319 and the blocking plate 305 and the partition plate 315 can move.

[0044] As Figure 7 and Figure 8As shown, the grout inlet 102 can be sealed by a valve. However, due to the different fluidity and particle size of the grout compared to water and gas, the valve may easily become stuck, resulting in ineffective sealing and grout leakage. Furthermore, when sealing by a valve, the grout inside the valve will solidify synchronously with the grout inside the cylinder, causing the valve to become unusable and increasing the cost of use.

[0045] Through this embodiment, such as Figure 9 As shown, by designing the connecting pipe 301, support plate 302, and release cylinder 314 as structures that can be symmetrically decomposed into two parts, one part of the connecting pipe 301, support plate 302, and release cylinder 314 is provided with a connecting groove 4, and the other part of the connecting pipe 301, support plate 302, and release cylinder 314 is fixedly installed with a connecting strip 401. The two parts of the connecting pipe 301, support plate 302, and release cylinder 314 are fixedly connected by fasteners 402. After sealing the holes on the support plate 302 with the sealing plate 305, the sealing sleeve 329 and support plate 302, the first transmission rod 320 and round rod 316, the second transmission rod 323 and connecting block 324 can be sealed first, and the sealing sleeve 329 can be removed from the support plate 302. At this time, the grout that has not yet solidified inside the sealing sleeve 329 can be flushed, so that the sealing sleeve 329 and the hydraulic transmission system above it can be reused.

[0046] After the grout inside the cylinder 1 solidifies, the connecting pipe 301, support plate 302 and release cylinder 314 can be separated into two parts by removing the fastener 402. The solidified grout core inside can then be removed, allowing the connecting pipe 301, support plate 302 and release cylinder 314 to be reused. Before use, a release agent can be applied to the inside of the connecting pipe 301, support plate 302 and release cylinder 314.

[0047] It is worth noting that before removing the sealing sleeve 329, the position of the sealing plate 305 needs to be fixed to prevent the sealing plate 305 from moving after the sealing sleeve 329 is removed, which would cause the seal to fail. This is achieved by fixing an internally threaded rod 327 on one side of the support plate 302. The internally threaded rod 327 is internally threaded and connected to a push rod 328 that limits the second connecting ring 310. By rotating the push rod 328, the push rod 328 extends outward and presses against the second connecting ring 310, thus preventing the second connecting ring 310 from shrinking and fixing the position of the sealing plate 305.

[0048] In the embodiment, by inserting two steel bars 2 to be connected into two ends of the barrel body 1 respectively, connecting the connecting pipe 301 with the grout inlet 102, and inputting the grouting material into the inside of the sealing sleeve 329 through the connecting head 330 by the grouting device, the grouting material can enter the connecting pipe 301 through the gap between the sealing sleeve 329 and the sealing plate 305, and finally enter the inside of the barrel body 1. After the grouting is completed, the grout outlet 101 is sealed, and pressure maintaining is performed. After the pressure maintaining is completed, the partition plate 315 and the sealing plate 305 are synchronously moved by loosening the valve 326.

[0049] Firstly, under the action of the grouting device, the grouting material enters the release barrel 314 and synchronously drives the sealing plate 305 to move. When the second sealing ring 306 contacts with the sealing plate 305, the sealing plate 305 and the second sealing ring 306 are synchronously moved by rotating the pull rod 312, so that the second sealing ring 306 enters the inside of the groove 303, thereby completing the sealing of the support plate 302 and ensuring the stability of the sealing effect. In this process, the grouting material compressed by the sealing plate 305 can enter the inside of the release barrel 314.

[0050] The above specific embodiments are only several optional embodiments of the present application. Based on the technical scheme of the present application and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A high-strength, corrosion-resistant, fully grouted sleeve, comprising a sleeve body (1), wherein the upper and lower ends of the sleeve body (1) are respectively provided with a grout discharge port (101) and a grout inlet port (102), characterized in that, Also includes: A sealing component (3) is fixedly installed on the slurry inlet (102). The sealing component (3) includes a connecting pipe (301) detachably installed on the slurry inlet (102) and a support plate (302) fixedly installed on the connecting pipe (301) with a diameter larger than that of the connecting pipe (301). The support plate (302) is provided with a groove (303). A first sealing ring (304) is slidably installed in the groove (303). A sealing plate (305) with a diameter larger than that of the connecting pipe (301) is slidably installed on the support plate (302). A second sealing ring (306) that cooperates with the groove (303) is provided on the sealing plate (305). The sealing component (3) also includes a limiting component for limiting the initial position of the first sealing ring (304) and a connecting component for controlling the synchronous movement of the first sealing ring (304) after it contacts the sealing plate (305); The connecting pipe (301) is provided with a connecting pipe (313), and a release cylinder (314) is fixedly installed on the connecting pipe (313). The release cylinder (314) is connected to a release transmission mechanism that controls the internal volume of the release cylinder (314) and moves the sealing plate (305) synchronously when releasing the volume of the release cylinder (314).

2. The high-strength, corrosion-resistant, fully grouted sleeve according to claim 1, characterized in that, A sealing sleeve (329) is detachably installed on the support plate (302). One end of the sealing sleeve (329) is provided with a connector (330), which is connected to the grouting device.

3. The high-strength, corrosion-resistant, fully grouted sleeve according to claim 2, characterized in that, Multiple first connecting shafts (307) are slidably installed on the support plate (302), and a first connecting ring (308) is fixedly installed on the multiple first connecting shafts (307). The limiting component includes a baffle (311) provided on the first connecting ring (308), and a pull rod (312) is rotatably installed on the connector (330).

4. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 3, characterized in that, Multiple second connecting shafts (309) are slidably mounted on the support plate (302), and a second connecting ring (310) is fixedly mounted on the multiple second connecting shafts (309). The connecting member includes multiple abutting blocks (331) disposed on the second connecting ring (310), and the abutting blocks (331) are in contact with the first connecting ring (308).

5. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 4, characterized in that, The release transmission mechanism includes a partition (315) slidably installed inside the release cylinder (314), and a round rod (316) is fixedly installed on the partition (315).

6. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 5, characterized in that, The release transmission mechanism further includes a first transmission cylinder (318) detachably connected to the release cylinder (314) via a support rod (317). A first sealing plate (319) is slidably installed inside the first transmission cylinder (318). A first transmission rod (320) is fixedly installed on the first sealing plate (319). The first transmission rod (320) is detachably connected to the round rod (316). A second transmission cylinder (321) is fixedly installed on the sealing sleeve (329). A second sealing plate (322) is slidably installed inside the second transmission cylinder (321). A second transmission rod (323) is fixedly installed on the second sealing plate (322). A connecting block (324) is fixedly installed on the second connecting ring (310). The second transmission rod (323) is detachably connected to the connecting block (324).

7. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 6, characterized in that, Both ends of the first transmission cylinder (318) are fixedly installed with conveying pipes (325), and the other end of the conveying pipes (325) is connected to both ends of the second transmission cylinder (321). The first transmission cylinder (318), the second transmission cylinder (321) and the conveying pipes (325) are all filled with transmission medium, and a valve (326) is fixedly installed on one of the conveying pipes (325).

8. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 7, characterized in that, An internally threaded rod (327) is fixedly installed on one side of the support plate (302), and the internally threaded rod (327) is internally threaded to a top rod (328) that limits the second connecting ring (310).

9. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 8, characterized in that, The connecting pipe (301), support plate (302) and release cylinder (314) can all be symmetrically decomposed into two parts. One part of the connecting pipe (301), support plate (302) and release cylinder (314) is provided with a connecting groove (4), and the other part of the connecting pipe (301), support plate (302) and release cylinder (314) is fixedly installed with a connecting strip (401). The two parts of the connecting pipe (301), support plate (302) and release cylinder (314) are fixedly connected by fasteners (402).

10. A high-strength, corrosion-resistant, fully grouted sleeve according to claim 9, characterized in that, Both ends of the cylinder (1) are fixedly installed with sealing plugs (103), and steel bars (2) are fixedly installed inside the sealing plugs (103).

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