Sleeve grouting connection structure

Abstract

The utility model relates to a sleeve grouting connecting structure, which belongs to the technical field of building construction and comprises a sleeve body, both sides of the sleeve body are fixedly connected with port connecting sleeves, external threads are arranged on the outer sides of the port connecting sleeves, threaded sleeves are arranged on the outer sides of the port connecting sleeves, and internal threads are arranged in the threaded sleeves. The sleeve has the advantages that when grouting materials are poured into the sleeve body and are not changed, the fixing hoops can be fixed to the outer side of a reinforcing steel bar through the fixing bolts, then the threaded rods are rotated, the threaded blocks are driven to slide in the corresponding fixing frames, then the connecting rods can be driven to rotate, and under pulling of the connecting rods, the grouting materials can be fixed to the outer side of the reinforcing steel bar. And one end of each reinforcing steel bar is always propped against the corresponding positioning hole until the grouting material becomes solid, so that the reinforcing steel bars are relatively stable in use and are not easy to shake, the lengths of the two reinforcing steel bars inserted into the sleeve are consistent, and the tensile strength of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a sleeve grouting connection structure. Background Art

[0002] The grouting sleeve for steel bar connection is a steel bar connection technology for precast components by pouring special high-strength cement-based grouting material into the sleeve, and after the grouting material solidifies, the steel bar is anchored in the sleeve. In the existing grouting sleeve, after the steel bars are inserted into both ends of the sleeve, there will be a certain size of gap between the steel bars and the sleeve ports. During the process of pouring the grouting material into the sleeve, the grouting material will overflow from the gap. This will not only cause waste of the grouting material, but also after the pouring is completed, the overflow of the grouting material results in the grouting material in the sleeve not being filled up, reducing the tensile strength and affecting the safety performance. At the same time, there is no steel bar positioning device in the existing grouting sleeve, which will cause the lengths of the two steel bars inserted into the sleeve to be inconsistent, reducing the tensile strength.

[0003] After retrieval, a Chinese patent discloses a grouting sleeve structure for steel bar connection (authorized announcement number CN214461825U), which includes a sleeve body. Connecting threads are symmetrically arranged at both ends of the sleeve body, and port connecting sleeves are screwed at both ends of the sleeve body through the connecting threads. An annular sealing ring is arranged in the port connecting sleeve. A grouting port and a slurry discharging port are arranged on the sleeve body. A positioning hole is arranged at the middle position of the sleeve body, and a positioning pin is inserted into the sleeve body through the positioning hole. Grouting material is poured into the sleeve body. Although the patent technology is reasonable in structure, during the process of pouring the grouting material into the grouting sleeve, the grouting material will not overflow, and at the same time, a certain pressure can be maintained for pouring, which is beneficial to filling the grouting material. At the same time, a spiral anchoring ring is adopted, which is beneficial to improving the overall tensile strength.

[0004] However, there are still some disadvantages in the actual use of the above device. The more obvious one is that when grouting the sleeve, it is necessary to hold the steel bar tightly against the positioning pin until the grouting material in the sleeve becomes solid. However, the above grouting sleeve structure does not have a clamping structure. If the steel bar shakes before the grouting material becomes solid, it will cause the lengths of the two steel bars inserted into the sleeve to be inconsistent, reducing the tensile strength. Summary of the Utility Model

[0005] In view of the problem existing in the prior art that when grouting the sleeve, it is necessary to hold the steel bar tightly against the positioning pin until the grouting material in the sleeve becomes solid. However, the above grouting sleeve structure does not have a clamping structure. If the steel bar shakes before the grouting material becomes solid, it will cause the lengths of the two steel bars inserted into the sleeve to be inconsistent, reducing the tensile strength, the main purpose of the utility model is to provide a sleeve grouting connection structure.

[0006] The technical solution of the utility model is as follows: A sleeve grouting connection structure includes a sleeve body. Both sides of the sleeve body are fixedly connected with port connection sleeves. External threads are arranged on the outer sides of the port connection sleeves. Thread sleeves are arranged on the outer sides of the port connection sleeves. Internal threads are arranged inside the thread sleeves. The thread sleeves are threadedly connected with the corresponding port connection sleeves. Fixed disks are fixedly connected to the ends of the thread sleeves away from the sleeve body. Two steel bars are arranged inside the sleeve body. One ends of the steel bars penetrate through the inside of the thread sleeves and the fixed disks. Clamping mechanisms are arranged on the outer sides of the fixed disks.

[0007] By adopting the above technical solution, through the use of detachable port connection sleeves and thread sleeves, it is convenient to clean the dust inside the sleeve body, and at the same time, it is convenient to replace and repair the sleeve body.

[0008] As a preferred embodiment, the clamping mechanism includes two fixed frames fixedly connected to the outer sides of the fixed disks. Threaded rods are threadedly connected inside the fixed frames. Threaded blocks are threadedly connected to the outer sides of the threaded rods. The threaded blocks are slidably connected to the inner walls of the corresponding fixed frames. Connecting rods are rotatably connected to both sides of the threaded blocks. Fixed hoops are sleeved on the outer sides of the steel bars. The fixed hoops are rotatably connected to the ends of the connecting rods away from the threaded blocks.

[0009] By adopting the above technical solution, rotate the threaded rod to drive the threaded block to slide inside the corresponding fixed frame, and then be able to drive the rotation of the connecting rod. In this way, under the pulling of the connecting rod, one end of the steel bar can always be tightly pressed against the positioning hole until the grouting material becomes solid, and then the steel bar can be relatively stable during use, not easy to shake, and the lengths of the two steel bars inserted into the sleeve are the same, further improving the tensile strength of the device.

[0010] As a preferred embodiment, convex balls are fixedly connected to the inner wall of the sleeve body at equal intervals. Sealing gaskets for cooperating with the port connection sleeves are fixedly connected to one sides of the two fixed disks close to each other.

[0011] By adopting the above technical solution, through the setting of the sealing gasket, the sealing performance of the device can be improved, and the leakage of the grouting material can be reduced.

[0012] As a preferred embodiment, a positioning disk is fixedly installed at the center of the inner wall of the sleeve body. Positioning holes for cooperating with the steel bars are opened on both sides of the positioning disk. A grouting port and a slurry discharge port are fixedly connected to the top end of the sleeve body.

[0013] By adopting the above technical solution, the lengths of the two steel bars inserted into the sleeve body can be the same, and the tensile strengths of the two steel bars inside the sleeve body are balanced.

[0014] As a preferred embodiment, two fixing bolts are provided at both ends inside the fixing hoop, and the fixing hoop is connected to the steel bar through the fixing bolts.

[0015] By adopting the above technical solution, it is convenient to install and disassemble the fixing hoop, and thus the steel bars with different radii can be fixed.

[0016] As a preferred embodiment, one end of each threaded rod extends to the outside of the fixing frame and is fixedly connected with an adjusting knob.

[0017] By adopting the above technical solution, it is convenient to drive the rotation of the threaded rod.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0019] In the present utility model, when grouting material is poured into the sleeve body and the grouting material is not solidified, the fixing hoop can be fixed on the outside of the steel bar by using the fixing bolts, and then the threaded rod is rotated to drive the threaded block to slide in the corresponding fixing frame, and thus the rotation of the connecting rod can be driven. In this way, under the pulling of the connecting rod, one end of the steel bar can always be tightly abutted against the positioning hole until the grouting material becomes solid, and thus the steel bar can be relatively stable during use, not prone to shaking, and the lengths of the two steel bars inserted into the sleeve are the same, further improving the tensile strength of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall three-dimensional view of the present utility model;

[0021] Figure 2 is the schematic internal structure diagram of the present utility model;

[0022] Figure 3 is the partial structure schematic diagram of the present utility model;

[0023] Figure 4 is the present utility model Figure 2 The enlarged view at A in.

[0024] Legend: 1, sleeve body; 2, grouting port; 3, slurry discharge port; 4, port connecting sleeve; 5, threaded sleeve; 6, fixing disk; 7, steel bar; 8, convex ball; 9, positioning disk; 10, positioning hole; 11, sealing gasket; 12, fixing frame; 13, threaded rod; 14, threaded block; 15, connecting rod; 16, fixing hoop; 17, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0026] Referring to Figures 1-4 , a sleeve grouting connection structure includes a sleeve body 1. Both sides of the sleeve body 1 are fixedly connected with port connection sleeves 4. External threads are provided on the outer sides of the port connection sleeves 4. Thread sleeves 5 are provided on the outer sides of the port connection sleeves 4. Internal threads are provided inside the thread sleeves 5. The thread sleeves 5 are threadedly connected to the corresponding port connection sleeves 4. Fixed disks 6 are fixedly connected to the ends of the thread sleeves 5 away from the sleeve body 1. Two steel bars 7 are arranged inside the sleeve body 1. One ends of the steel bars 7 penetrate through the inside of the thread sleeves 5 and the fixed disks 6. Clamping mechanisms are provided on the outer sides of the fixed disks 6.

[0027] By using the detachable port connection sleeves 4 and thread sleeves 5, it is convenient to clean the dust inside the sleeve body 1, and at the same time, it is convenient to replace and repair the sleeve body 1.

[0028] Referring to Figure 4 , the clamping mechanism includes two fixed frames 12 fixedly connected to the outer sides of the fixed disks 6. Threaded rods 13 are threadedly connected inside the fixed frames 12. Threaded blocks 14 are threadedly connected to the outer sides of the threaded rods 13. The threaded blocks 14 are slidably connected to the inner walls of the corresponding fixed frames 12. Connecting rods 15 are rotatably connected to both sides of the threaded blocks 14. Fixed hoops 16 are sleeved on the outer sides of the steel bars 7. The fixed hoops 16 are rotatably connected to the ends of the connecting rods 15 away from the threaded blocks 14.

[0029] When grouting material is poured into the sleeve body 1 and the grouting material has not solidified, the fixed bolt 17 can be used to fix the fixed hoop 16 on the outer side of the steel bar 7, and then the threaded rod 13 is rotated to drive the threaded block 14 to slide inside the corresponding fixed frame 12, thereby being able to drive the rotation of the connecting rod 15. In this way, under the pulling of the connecting rod 15, one end of the steel bar 7 can always be tightly abutted against the positioning hole 10 until the grouting material solidifies, so that the steel bar 7 is relatively stable during use and is not prone to shaking, and the lengths of the two steel bars 7 inserted into the sleeve are the same, further improving the tensile strength of the device.

[0030] Referring to Figure 2, the inner wall of the sleeve body 1 is fixedly connected with convex balls 8 at equal intervals. Sealing gaskets 11 which are used in cooperation with the port connecting sleeve 4 are fixedly connected to one side of each of the two fixed disks 6 that are close to each other. Through the arrangement of the convex balls 8, it is beneficial to increase the anti-pulling performance and improve the firmness of the connection. And through the arrangement of the sealing gaskets 11, the sealing performance of the device can be improved, and the leakage of the grouting material can be reduced.

[0031] Refer to Figure 2 , a positioning disk 9 is fixedly installed at the center of the inner wall of the sleeve body 1. Positioning holes 10 which are used in cooperation with the steel bars 7 are formed on both sides of the positioning disk 9. A grouting port 2 and a slurry discharge port 3 are fixedly connected to the top end of the sleeve body 1. Through the arrangement of the positioning holes 10 and the positioning disk 9, the lengths of the two steel bars 7 inserted into the sleeve body 1 can be made the same, so that the tensile strengths of the two steel bars 7 in the sleeve body 1 are balanced.

[0032] Refer to Figure 4 , two fixing bolts 17 are arranged at both ends inside the fixing hoop 16. The fixing hoop 16 and the steel bar 7 are connected through the fixing bolts 17, so as to facilitate the installation and disassembly of the fixing hoop 16, and then the steel bars 7 with different radii can be fixed.

[0033] Refer to Figure 4 , one end of each threaded rod 13 extends to the outside of the fixing frame 12 and is fixedly connected with an adjusting knob, so as to facilitate driving the rotation of the threaded rod 13.

[0034] Working principle: First, insert the steel bar 7 into the corresponding port connecting sleeve 4 until it reaches the positioning hole 10. Subsequently, tighten the threaded sleeve 5 and the port connecting sleeve 4. Then, perform grouting operation on the sleeve body 1 through the grouting port 2. When grouting material is poured into the sleeve body 1 and the grouting material is not solidified yet, the fixing hoop 16 can be fixed on the outside of the steel bar 7 by using the fixing bolts 17, and then rotate the threaded rod 13 to drive the threaded block 14 to slide in the corresponding fixing frame 12, and then the rotation of the connecting rod 15 can be driven. In this way, under the pulling of the connecting rod 15, one end of the steel bar 7 can always be tightly abutted against the positioning hole 10 until the grouting material becomes solid. Thus, the steel bar 7 can be relatively stable during use and is not easy to shake, and the lengths of the two steel bars 7 inserted into the sleeve are the same, further improving the tensile strength of the device. Through the arrangement of the convex balls 8, it is beneficial to increase the anti-pulling performance and improve the firmness of the connection. And through the arrangement of the sealing gaskets 11, the sealing performance of the device can be improved, and the leakage of the grouting material can be reduced.

[0035] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sleeve grouting connection structure, comprising a sleeve body (1), characterized in that: Both sides of the sleeve body (1) are fixedly connected with port connection sleeves (4), the outer sides of the port connection sleeves (4) are provided with external threads, the outer sides of the port connection sleeves (4) are provided with threaded sleeves (5), the interiors of the threaded sleeves (5) are provided with internal threads, the threaded sleeves (5) are threadedly connected with the corresponding port connection sleeves (4), one end of the threaded sleeves (5) away from the sleeve body (1) is fixedly connected with a fixing plate (6), the interior of the sleeve body (1) is provided with two steel bars (7), one end of the steel bars (7) passes through the interiors of the threaded sleeves (5) and the fixing plate (6), and the outer sides of the fixing plates (6) are provided with clamping mechanisms.

2. A sleeve grouting connection structure according to claim 1, characterized in that: The clamping mechanism comprises two fixing frames (12) fixedly connected to the outside of the fixing plate (6), the inside of each fixing frame (12) is threadedly connected to a threaded rod (13), the outside of each threaded rod (13) is threadedly connected to a threaded block (14), each threaded block (14) is slidably connected to the inner wall of the corresponding fixing frame (12), both sides of each threaded block (14) are rotatably connected to a connecting rod (15), and the outside of each steel bar (7) is sleeved with a fixing hoop (16), and each fixing hoop (16) is rotatably connected to an end of the connecting rod (15) away from the threaded block (14).

3. A sleeve grouting connection structure according to claim 1, characterized in that: The inner wall of the sleeve body (1) is fixedly connected with raised balls (8) at equal intervals, and the adjacent sides of the two fixed plates (6) are fixedly connected with sealing pads (11) used in conjunction with the port connection sleeve (4).

4. A sleeve grouting connection structure according to claim 1, characterized in that: A positioning plate (9) is fixedly mounted at the center of the inner wall of the sleeve body (1), and positioning holes (10) for use with the steel bars (7) are provided on both sides of the positioning plate (9). A grouting port (2) and a grouting port (3) are fixedly connected to the top of the sleeve body (1).

5. A sleeve grouting connection structure according to claim 2, characterized in that: Two fixing bolts (17) are provided at both ends of the fixing hoop (16), and the fixing hoop (16) and the steel bar (7) are connected via the fixing bolts (17).

6. A sleeve grouting connection structure according to claim 2, characterized in that: One end of the threaded rod (13) extends to the outside of the fixed frame (12) and is fixedly connected to an adjustment knob.

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