Removable assembly type grout sleeve

Abstract

This utility model discloses a detachable and modular grouting sleeve, including a first grouting sleeve, a second grouting sleeve mounted on the first grouting sleeve, a grout outlet pipe and a grout inlet pipe mounted on the second grouting sleeve, and a connecting shell mounted on the first and second grouting sleeves. Quick assembly and disassembly are achieved through components such as adjusting nuts and elastic aluminum rings, facilitating inspection of internal grouting quality and rebar anchorage, preventing hidden problems from being left unresolved. Damage can be repaired individually without destructive treatment, reducing safety hazards. During construction, if there is rebar misalignment or grout leakage, it can be disassembled and adjusted without breaking the sleeve for rework, reducing material waste and impact on surrounding structures. During building renovation, it can be flexibly separated and connected, avoiding damage to the main structure. During dismantling, the sleeve is easily separated from the rebar and components, facilitating efficient recycling, reducing construction waste, conforming to the green building circular economy concept, and significantly improving construction error tolerance and environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of grouting sleeve technology, specifically a detachable and combinable grouting sleeve. Background Technology

[0002] Grouting sleeves are key mechanical devices used in prefabricated buildings for connecting the reinforcing bars of precast components (such as precast wall panels, beams, columns, etc.). By injecting high-strength grout into the sleeve, two reinforcing bars to be connected are indirectly joined to achieve force transmission. It is one of the core components to ensure the integrity and safety of prefabricated structures. Detachable and modular grouting sleeves are a new type of mechanical connection device used in prefabricated buildings for connecting the reinforcing bars of precast components. Its core feature is that it combines the connection reliability of traditional grouting sleeves with the flexibility of detachment and combination, making it suitable for building structure scenarios that require later maintenance, replacement, or modification.

[0003] In existing technologies, traditional modular grouting sleeves are inconvenient to disassemble. Because they cannot be disassembled, hidden problems such as internal grouting quality and rebar anchorage are difficult to detect. Damage is also irreparable, requiring destructive treatment, which poses potential safety hazards. The tolerance for error during construction is extremely low. If there is a misalignment of the rebar or grout leakage, it cannot be disassembled and adjusted. After the grout solidifies, the sleeve or component must be broken and reworked, which wastes materials, affects the surrounding structure, and restricts building modifications. Permanent connections require breaking the original connection when adjusting functions or replacing components, causing secondary damage to the main structure. Furthermore, they are not environmentally friendly. During building demolition, the sleeve is difficult to separate from the rebar and components, making efficient recycling impossible and generating a large amount of construction waste, which does not conform to the concept of green building recycling. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable and modular grouting sleeve to solve the problems mentioned in the background art, such as the potential safety hazards caused by the inconvenient disassembly of the modular grouting sleeve, the extremely low fault tolerance rate during construction, the inability to recycle efficiently, and the generation of a large amount of construction waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable and modular grouting sleeve, comprising a first grouting sleeve, a second grouting sleeve mounted on the first grouting sleeve, a grout outlet pipe and a grout inlet pipe mounted on the second grouting sleeve, a connecting shell mounted on the first and second grouting sleeves, a fixing component mounted on the first and second grouting sleeves, a connecting aluminum sleeve fitted onto the first and second grouting sleeves, a connecting shell fixedly connected to the connecting aluminum sleeve, a first elastic aluminum ring and a second elastic aluminum ring fixedly connected to the connecting shell, and a fixing... The components include a first connecting block and a second connecting block connected inside the first and second elastic aluminum rings, a connecting bolt snapped inside the first and second connecting blocks, a connecting sleeve fixedly connected to the connecting bolt, a fixed adjusting nut threadedly connected to the connecting bolt, a fixed connecting ring movably connected inside the connecting housing, and a clamping toothed ring fixedly connected to the fixed connecting ring. By twisting the adjusting nut, the adjusting nut pushes the first connecting block, causing the first elastic aluminum ring to press against the second elastic aluminum ring. The connecting sleeve pulls the second elastic aluminum ring on the second connecting block closer to the first elastic aluminum ring.

[0006] In a preferred embodiment of this technical solution, the first connecting block and the second connecting block are provided with sliding grooves at the corresponding positions of the connecting bolts, and the connecting bolts move inside the sliding grooves.

[0007] In a preferred embodiment of this technical solution, the connecting housing has a slot at the corresponding position of the fixed connecting ring, and the fixed connecting ring moves inside the slot.

[0008] Based on the preferred embodiment of this technical solution, a plurality of clamping tooth rings are provided, and the plurality of clamping tooth rings are evenly arranged on the clamping tooth rings.

[0009] In a preferred embodiment of this technical solution, the second grouting sleeve is provided with an insert block, and the first grouting sleeve has a slot at the corresponding position of the insert block on the second grouting sleeve, with the insert block engaging inside the slot.

[0010] Based on the preferred embodiment of this technical solution, the fixing component includes sleeve threads formed on the first grouting sleeve and the second grouting sleeve, a connecting installation pipe threaded to the sleeve threads on the second grouting sleeve and the second grouting sleeve, soft steel pads fixedly connected to both ends of the second grouting sleeve and the second grouting sleeve, a sealing ring disposed inside the soft steel pad, a fixing installation sleeve disposed at one end of the first grouting sleeve and the second grouting sleeve, a connecting thread formed on the inner side of the fixing installation sleeve, a pressing bevel formed inside the fixing installation sleeve, the pressing bevel contacting the soft steel pad, the connecting installation pipe connected to the sleeve threads at one end of the first grouting sleeve and the second grouting sleeve, the other end of the connecting installation pipe connected to the sleeve threads of another first grouting sleeve and the second grouting sleeve, and under the condition of being threadedly connected to the sleeve threads through the connecting thread on the fixing installation sleeve, the pressing bevel on the fixing installation sleeve is driven to press the soft steel pad, so that the soft steel pad contacts the fixed reinforcing bar, and the sealing ring is used to seal the gap between the soft steel pad and the reinforcing bar.

[0011] Based on the preferred embodiment of this technical solution, a plurality of soft steel pads are provided, and the plurality of soft steel pads are uniformly and fixedly connected to the first grouting sleeve and the second grouting sleeve.

[0012] Based on the preferred embodiment of this technical solution, both ends of the connecting installation pipe are threaded, and both threads are connected to the sleeve threads of the first grouting sleeve and the second grouting sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. Quick assembly and disassembly are achieved through components such as adjusting nuts and elastic aluminum rings, facilitating inspection of internal grouting quality and rebar anchorage, preventing hidden problems from being overlooked. Damage can be repaired individually without destructive treatment, reducing safety hazards. During construction, if rebar misalignment or grout leakage occurs, disassembly and adjustment are possible without breaking the sleeve for rework, reducing material waste and impact on surrounding structures. During building renovations, flexible separation and connection are possible, avoiding damage to the main structure. During dismantling, the sleeve is easily separated from the rebar and components, facilitating efficient recycling, reducing construction waste, conforming to the green building circular economy concept, and significantly improving construction error tolerance and environmental friendliness.

[0014] 2. The sleeve thread mates with the connecting installation pipe. The bidirectional connection of the threads at both ends of the installation pipe allows for the rapid splicing of multiple grouting sleeves. The length can be flexibly adjusted according to needs, significantly enhancing the applicability of the device. After splicing, a stable overall structure is formed, ensuring strength. When the fixed installation sleeve is connected to the sleeve thread via the connecting thread, the pressure bevel compresses the soft steel pad, which, together with the sealing ring, effectively seals gaps, preventing grout leakage and ensuring grouting quality. Several evenly distributed soft steel pads increase the contact area with the reinforcing steel, making the reinforcing steel more evenly stressed, avoiding excessive local stress that could lead to deformation or damage, and improving structural safety and durability. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the detachable and combinable grouting sleeve of this utility model; Figure 2 This is a schematic diagram of the connecting and mounting pipe structure of this utility model; Figure 3 This is a schematic diagram of the fixed mounting sleeve structure of this utility model; Figure 4 This is a schematic diagram of the connecting shell structure of this utility model; Figure 5 This is a schematic diagram of the internal structure of the connecting shell of this utility model.

[0016] In the diagram: 1. First grouting sleeve; 2. Second grouting sleeve; 3. Grout outlet pipe; 4. Grout inlet pipe; 5. Connecting housing; 801. Connecting installation pipe; 802. Sleeve thread; 803. Soft steel gasket; 804. Sealing ring; 805. Fixed installation sleeve; 806. Connecting thread; 807. Extrusion bevel; 901. Connecting aluminum sleeve; 902. First elastic aluminum ring; 903. Second elastic aluminum ring; 904. First connecting block; 905. Second connecting block; 906. Connecting bolt; 907. Adjusting nut; 908. Connecting threaded sleeve; 909. Fixed connecting ring; 910. Clamping toothed ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5This utility model provides an embodiment of a detachable and modular grouting sleeve, comprising a first grouting sleeve 1, characterized in that it further comprises a second grouting sleeve 2 disposed on the first grouting sleeve 1, a grout outlet pipe 3 and a grout inlet pipe 4 disposed on the second grouting sleeve 2, a connecting housing 5 disposed on the first grouting sleeve 1 and the second grouting sleeve 2, a fixing component disposed on the first grouting sleeve 1 and the second grouting sleeve 2, a connecting aluminum sleeve 901 sleeved on the first grouting sleeve 1 and the second grouting sleeve 2, the connecting housing 5 fixedly connected to the connecting aluminum sleeve 901, a first elastic aluminum ring 902 and a second elastic aluminum ring 903 fixedly connected to the connecting housing 5, a first connecting block 904 and a second connecting block 905 fixedly connected inside the first elastic aluminum ring 902 and the second elastic aluminum ring 903, a connecting bolt 906 snapped into the first connecting block 904 and the second connecting block 905, and a connecting bolt 906 fixedly connected to the connecting bolt. The connecting sleeve 908 on the bolt 906, the fixing adjusting nut 907 threaded onto the connecting bolt 906, the fixing connecting ring 909 movably connected inside the connecting housing 5, and the clamping toothed ring 910 fixedly connected to the fixing connecting ring 909, by twisting the adjusting nut 907, the adjusting nut 907 pushes the first connecting block 904, causing the first elastic aluminum ring 902 to press against the second elastic aluminum ring 903. The connecting sleeve 908 pulls the second elastic aluminum ring 903 on the second connecting block 905 closer to the first elastic aluminum ring 902. Twisting the adjusting nut 907 pushes the first connecting block 904, causing the first elastic aluminum ring 902 to press against the second elastic aluminum ring 903. The connecting sleeve 908 pulls the second connecting block 905 to bring the second elastic aluminum ring 903 closer. The two rings, through the connecting housing 5, drive the fixing connecting ring 909, causing the clamping toothed ring 910 to clamp the first grouting sleeve 1 and the second grouting sleeve 2.

[0019] Please see Figure 4-5 A further solution based on this embodiment is as follows: the first connecting block 904 and the second connecting block 905 have sliding grooves at the corresponding positions of the connecting bolt 906. The connecting bolt 906 moves inside the sliding grooves. By opening sliding grooves on the first connecting block 904 and the second connecting block 905 and allowing the connecting bolt 906 to move inside the sliding grooves, the connecting bolt 906 can be provided with a space for movement. When the adjusting nut 907 and the connecting sleeve 908 are turned, the connecting bolt 906 can slide smoothly along the sliding groove, avoiding the obstruction of adjustment due to the fixed position between the connecting block and the bolt.

[0020] Please see Figure 4-5 A further solution based on this embodiment is as follows: the connecting housing 5 has a slot at the corresponding position of the fixed connecting ring 909, and the fixed connecting ring 909 moves inside the groove. By opening a slot on the connecting housing 5 and allowing the fixed connecting ring 909 to move inside the slot, the movement direction of the fixed connecting ring 909 can be limited, ensuring that it can only move stably along the trajectory of the slot.

[0021] Please see Figure 4-5 A further solution based on this embodiment is as follows: a plurality of clamping tooth rings 910 are provided, and the plurality of clamping tooth rings 910 are evenly provided on the clamping tooth rings 910. By providing a plurality of evenly distributed clamping tooth rings 910, the contact area between the clamping tooth rings 910 and the first grouting sleeve 1 and the second grouting sleeve 2 can be increased, so that the force is more evenly distributed on the surface of the grouting sleeve.

[0022] Please see Figure 4-5 A further solution based on this embodiment is as follows: a plug is provided on the second grouting sleeve 2, and a slot is opened on the first grouting sleeve 1 at the corresponding position of the plug on the second grouting sleeve 2. The plug is engaged inside the slot. By providing a plug on the second grouting sleeve 2 and opening a corresponding slot on the first grouting sleeve 1, the plug is engaged in the slot, which can play a role in pre-positioning the first grouting sleeve 1 and the second grouting sleeve 2 in the early stage of installation, ensuring that the two will not be misaligned in the subsequent fixing process.

[0023] Please see Figure 2-3A further embodiment of this solution includes: a fixing component comprising a sleeve thread 802 formed on the first grouting sleeve 1 and the second grouting sleeve 2; a connecting installation pipe 801 threadedly connected to the sleeve thread 802 on the second grouting sleeve 2; a soft steel pad 803 fixedly connected to both ends of the second grouting sleeve 2; a sealing ring 804 disposed inside the soft steel pad 803; a fixing installation sleeve 805 disposed at one end of the first grouting sleeve 1 and the second grouting sleeve 2; a connecting thread 806 formed on the inner side of the fixing installation sleeve 805; a pressing bevel 807 formed inside the fixing installation sleeve 805; the pressing bevel 807 contacting the soft steel pad 803; the connecting installation pipe 801 connected to the sleeve thread 802 at one end of the first grouting sleeve 1 and the second grouting sleeve 2; and the other end of the connecting installation pipe 801 connected to another first grouting sleeve. When the sleeve thread 802 of the cylinder 1 and the second grouting sleeve 2 are threadedly connected to the sleeve thread 802 via the connecting thread 806 on the fixed mounting sleeve 805, the extrusion inclined surface 807 on the fixed mounting sleeve 805 extrudes the soft steel pad 803, causing the soft steel pad 803 to contact the fixed reinforcing bar. The sealing ring 804 seals the gap between the soft steel pad 803 and the reinforcing bar. Through the cooperation of the sleeve thread 802 and the connecting mounting pipe 801, multiple grouting sleeves can be quickly connected, which facilitates extending the length of the grouting sleeve according to actual needs and enhances the applicability of the device. When the fixed mounting sleeve 805 is connected to the sleeve thread 802 via the connecting thread 806, the extrusion inclined surface 807 extrudes the soft steel pad 803 to contact the reinforcing bar, and with the sealing effect of the sealing ring 804, the leakage of grout from the gap during the grouting process can be effectively prevented.

[0024] Please see Figure 2-3 A further solution based on this embodiment is as follows: a plurality of soft steel pads 803 are provided, and the plurality of soft steel pads 803 are uniformly fixedly connected to the first grouting sleeve 1 and the second grouting sleeve 2. By providing a plurality of uniformly distributed soft steel pads 803, under the squeezing action of the fixed installation sleeve 805, multiple soft steel pads 803 can simultaneously contact the reinforcing bar, thereby increasing the contact area and making the force on the reinforcing bar more uniform, thus avoiding excessive local stress that could lead to deformation or damage to the reinforcing bar.

[0025] Please see Figure 2-3 A further solution based on this embodiment is as follows: both ends of the connecting installation pipe 801 are threaded, and both threads are connected to the sleeve threads 802 of the first grouting sleeve 1 and the second grouting sleeve 2. By opening threads at both ends of the connecting installation pipe 801 and connecting them to the sleeve threads 802, a bidirectional and stable connection between the connecting installation pipe 801 and the first grouting sleeve 1 and the second grouting sleeve 2 can be achieved, ensuring that multiple grouting sleeves form an integral structure after splicing.

[0026] Working principle: Twisting the adjusting nut 907 pushes the first connecting block 904, causing the first elastic aluminum ring 902 to press against the second elastic aluminum ring 903. At the same time, the connecting sleeve 908 pulls the second connecting block 905, bringing the second elastic aluminum ring 903 closer to the first elastic aluminum ring 902. The two rings deform under the cooperation of the connecting bolt 906 sliding along the groove. Through the connecting housing 5, the fixed connecting ring 909 moves along the slot, causing several evenly distributed clamping toothed rings 910 to clamp the first grouting sleeve 1 and the second grouting sleeve 2. The two are pre-positioned by the insert block and the slot to avoid misalignment. When splicing and extending, the threads at both ends of the connecting installation pipe 801 are connected to the sleeve threads 802 to realize multiple sets of sleeve combinations. The fixed mounting sleeve 805 is connected to the sleeve thread 802 via the connecting thread 806. Its pressing bevel 807 presses against several evenly distributed soft steel pads 803, bringing them into contact with the reinforcing bars. This, combined with the sealing ring 804, seals the gaps, preventing grout leakage and ensuring uniform stress on the reinforcing bars. For disassembly, the adjusting nut 907 is operated in reverse; the elastic aluminum ring resets, and the clamping toothed ring 910 loosens, achieving separation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable and modular grouting sleeve, comprising a first grouting sleeve (1), characterized in that: It also includes a second grouting sleeve (2) disposed on the first grouting sleeve (1), a grout outlet pipe (3) and a grout inlet pipe (4) disposed on the second grouting sleeve (2), a connecting shell (5) disposed on the first grouting sleeve (1) and the second grouting sleeve (2), a fixing component disposed on the first grouting sleeve (1) and the second grouting sleeve (2), a connecting aluminum sleeve (901) sleeved on the first grouting sleeve (1) and the second grouting sleeve (2), the connecting shell (5) fixedly connected to the connecting aluminum sleeve (901), a first elastic aluminum ring (902) and a second elastic aluminum ring (903) fixedly connected to the connecting shell (5), and a first connecting block (904) and a second connecting block (905) fixedly connected inside the first elastic aluminum ring (902) and the second elastic aluminum ring (903). The connecting bolt (906) is snapped into the first connecting block (904) and the second connecting block (905), the connecting sleeve (908) is fixedly connected to the connecting bolt (906), the fixed adjusting nut (907) is threadedly connected to the connecting bolt (906), the fixed connecting ring (909) is movably connected to the inside of the connecting housing (5), and the clamping toothed ring (910) is fixedly connected to the fixed connecting ring (909). By twisting the adjusting nut (907), the adjusting nut (907) pushes the first connecting block (904) to drive the first elastic aluminum ring (902) to squeeze towards the second elastic aluminum ring (903). The connecting sleeve (908) will pull the second elastic aluminum ring (903) on the second connecting block (905) to move closer to the first elastic aluminum ring (902).

2. The detachable and modular grouting sleeve according to claim 1, characterized in that: The first connecting block (904) and the second connecting block (905) have grooves at the corresponding positions of the connecting bolt (906), and the connecting bolt (906) moves inside the grooves.

3. The detachable and modular grouting sleeve according to claim 1, characterized in that: The connecting housing (5) has a slot at the corresponding position of the fixed connecting ring (909), and the fixed connecting ring (909) moves inside the groove.

4. The detachable and modular grouting sleeve according to claim 1, characterized in that: There are several clamping tooth rings (910), and the several clamping tooth rings (910) are evenly arranged on the clamping tooth rings (910).

5. The detachable and modular grouting sleeve according to claim 1, characterized in that: The second grouting sleeve (2) is provided with an insert block. The first grouting sleeve (1) has a slot at the corresponding position of the insert block on the second grouting sleeve (2), and the insert block is engaged inside the slot.

6. The detachable and modular grouting sleeve according to claim 1, characterized in that: The fixing assembly includes a sleeve thread (802) on the first grouting sleeve (1) and the second grouting sleeve (2), a connecting installation pipe (801) threadedly connected to the sleeve thread (802) on the second grouting sleeve (2), a soft steel pad (803) fixedly connected to both ends of the second grouting sleeve (2), a sealing ring (804) disposed inside the soft steel pad (803), a fixing mounting sleeve (805) disposed at one end of the first grouting sleeve (1) and the second grouting sleeve (2), a connecting thread (806) on the inner side of the fixing mounting sleeve (805), an extrusion bevel (807) on the inner side of the fixing mounting sleeve (805), and an extrusion bevel (807) and an extrusion bevel (807) on the inner side of the fixing mounting sleeve (805). The soft steel pad (803) is in contact with the steel reinforcement. The connecting installation pipe (801) is connected to the sleeve thread (802) at one end of the first grouting sleeve (1) and the second grouting sleeve (2). The other end of the connecting installation pipe (801) is connected to the sleeve thread (802) of another first grouting sleeve (1) and the second grouting sleeve (2). Under the condition that the connecting thread (806) on the fixed installation sleeve (805) is threadedly connected to the sleeve thread (802), the extrusion slope (807) on the fixed installation sleeve (805) is driven to extrude the soft steel pad (803), so that the soft steel pad (803) is in contact with the fixed steel reinforcement. The gap between the soft steel pad (803) and the steel reinforcement is sealed by the sealing ring (804).

7. The detachable and modular grouting sleeve according to claim 6, characterized in that: Several soft steel pads (803) are provided, and several soft steel pads (803) are evenly fixedly connected to the first grouting sleeve (1) and the second grouting sleeve (2).

8. The detachable and modular grouting sleeve according to claim 6, characterized in that: Both ends of the connecting installation pipe (801) are threaded, and both threads are connected to the sleeve threads (802) of the first grouting sleeve (1) and the second grouting sleeve (2).

Images