A connecting grouting sleeve for fabricated precast component reinforcement

By setting up reinforcement and protection mechanisms on the outside of the connecting grouting sleeve, the problem of weak shear bearing capacity at the connection point was solved, achieving higher connection strength and shear bearing capacity.

CN224532057UActive Publication Date: 2026-07-21NANTONG OULIDA CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG OULIDA CONSTR TECH CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing grouting sleeves lack reinforcement on the outside of the connection area during use, resulting in weak shear bearing capacity.

Method used

A reinforcement mechanism is installed on the outside of the grouting sleeve, including a lower reinforcement sleeve and an upper reinforcement sleeve. The reinforcement is achieved by a carbon steel threaded sleeve with a threaded connection. A protective mechanism is installed on the outside of the connector to enhance the connection strength.

Benefits of technology

The reinforcement mechanism improves the mechanical interlocking force of the connecting grouting sleeve, disperses the force, avoids stress concentration, and enhances the shear bearing capacity. At the same time, the protection mechanism strengthens the connection strength of the connector.

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Abstract

The utility model relates to connecting grouting sleeve technical field discloses a kind of connecting grouting sleeve of fabricated prefabricated component reinforcement, including connecting grouting sleeve main part, and the outside of connecting grouting sleeve main part is fixed with installation pipeline, and one end of connecting grouting sleeve main part is fixed with connector.The utility model is provided with reinforcing mechanism, and the fixing between upper reinforcing sleeve and lower reinforcing sleeve is conveniently completed, so that upper reinforcing sleeve and lower reinforcing sleeve are reinforced to the outside of connecting grouting sleeve main part connecting part, form more compact mechanical bite, improve the connection strength of sleeve, and stress can be dispersed, stress concentration is avoided, the purpose of improving shear bearing capacity is reached;By being provided with protection mechanism, when connector and connecting grouting sleeve main part are fixedly connected, so that upper protective sleeve and lower protective sleeve are protected to the outside of connector, improve the connection strength of connector and connecting grouting sleeve main part connecting part outside.
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Description

Technical Field

[0001] This utility model relates to the technical field of connecting grouting sleeves, specifically a connecting grouting sleeve for prefabricated structural steel reinforcement. Background Technology

[0002] A grouting sleeve is an assembly consisting of a specially processed sleeve, matching grouting material, and reinforcing bars. When connecting reinforcing bars, fast-hardening, non-shrink grouting material is injected, and the reinforcing bars and sleeve are connected by the bonding and interlocking action between the materials.

[0003] However, existing grouting sleeves lack reinforcement on the outer side of the connection area during use, resulting in weak shear bearing capacity. Therefore, those skilled in the art have provided a grouting sleeve for connecting reinforcing bars of prefabricated components to solve the problems mentioned in the background art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a grouting sleeve for connecting the reinforcing bars of prefabricated components.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a grouting sleeve for connecting steel bars of prefabricated components, including a grouting sleeve body, an installation pipe fixed on the outside of the grouting sleeve body, a connector fixed at one end of the grouting sleeve body, a reinforcing mechanism provided on the outside of the grouting sleeve body, and a protective mechanism provided on the outside of the connector.

[0006] The reinforcement mechanism includes a lower reinforcement sleeve, a support block fixed to the bottom of the lower reinforcement sleeve, an upper reinforcement sleeve rotatably connected to the top of the lower reinforcement sleeve via a pivot, a mounting shell fixed to the outer side of the lower reinforcement sleeve, a connecting block fixed to the outer side of the upper reinforcement sleeve, a fixed semi-threaded rod installed on the outer side of the mounting shell, a movable semi-threaded rod fixed to the outer side of the connecting block, and a carbon steel threaded sleeve threadedly connected to the outer sides of the fixed semi-threaded rod and the movable semi-threaded rod.

[0007] As a further description of the above technical solution:

[0008] The support block and the main body of the connecting grouting sleeve are fixedly connected, and the radius of the movable semi-threaded rod is equal to the radius of the fixed semi-threaded rod.

[0009] As a further description of the above technical solution:

[0010] The corresponding surface of the connecting block is fitted with the corresponding surface of the mounting shell, and the corresponding surface of the upper reinforcing sleeve is fitted with the corresponding surface of the lower reinforcing sleeve.

[0011] As a further description of the above technical solution:

[0012] One side of the upper reinforcing sleeve is fitted to the outer side of the connecting grouting sleeve body, and the outer side of the carbon steel threaded sleeve is provided with anti-slip texture.

[0013] As a further description of the above technical solution:

[0014] The lower reinforcing sleeve is fixedly connected to the main body of the connecting grouting sleeve via a support block, and the mounting shell and the lower reinforcing sleeve are bonded and fixed together.

[0015] As a further description of the above technical solution:

[0016] The protective mechanism includes an upper protective sleeve, the bottom of which is rotatably connected to a lower protective sleeve via a pivot. An upper limit sleeve is fixed to one side of the upper protective sleeve, and a lower support sleeve is fixed to one side of the lower protective sleeve. A limit threaded post is installed on the top of the lower support sleeve, and a limit threaded sleeve is threaded to the outer side of the limit threaded post. A limit pad is fixed to the outer side of the lower protective sleeve.

[0017] As a further description of the above technical solution:

[0018] The upper limit sleeve has a groove inside, the size of which is adapted to the size of the limit threaded post.

[0019] As a further description of the above technical solution:

[0020] One side of the limiting pad is fitted to the outer side of the upper protective sleeve, and the lower bottom surface of the limiting threaded sleeve is fitted to the upper top surface of the upper limiting sleeve.

[0021] Compared with the prior art, the beneficial effects of this utility model include:

[0022] 1. By setting up a reinforcement mechanism, the upper and lower reinforcement sleeves can be easily fixed together, allowing the upper and lower reinforcement sleeves to reinforce the outer side of the connection part of the grouting sleeve body, forming a tighter mechanical interlocking force, improving the connection strength of the sleeve, and dispersing the force to avoid stress concentration, thereby achieving the purpose of improving the shear bearing capacity.

[0023] 2. By setting up a protective mechanism, after the connector and the main body of the grouting sleeve are fixedly connected, the upper and lower protective sleeves protect the outside of the connector, thereby improving the connection strength of the outside of the connection part between the connector and the main body of the grouting sleeve. Attached Figure Description

[0024] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0025] Figure 1 The schematic diagram shows a perspective view of the overall structure according to one embodiment of the present invention;

[0026] Figure 2 The schematic diagram shows a structural schematic of a reinforcement mechanism according to one embodiment of the present invention;

[0027] Figure 3 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 2 A magnified structural diagram of region A;

[0028] Figure 4 The schematic diagram shows a structural schematic of a protection mechanism according to one embodiment of the present invention.

[0029] Numbering on the map:

[0030] 1. Connecting the grouting sleeve body; 2. Installing the pipe; 3. Connector; 4. Reinforcing mechanism; 41. Lower reinforcing sleeve; 42. Support block; 43. Upper reinforcing sleeve; 44. Mounting shell; 45. Connecting block; 46. Fixed semi-threaded rod; 47. Movable semi-threaded rod; 48. Carbon steel threaded sleeve; 5. Protective mechanism; 51. Upper protective sleeve; 52. Lower protective sleeve; 53. Upper limit sleeve; 54. Lower support sleeve; 55. Limiting threaded column; 56. Limiting threaded sleeve; 57. Limiting pad. Detailed Implementation

[0031] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0032] According to one embodiment of the present invention, in conjunction with Figures 1-4 As shown. A grouting sleeve for connecting steel bars of prefabricated components includes a grouting sleeve body 1, an installation pipe 2 fixed to the outside of the grouting sleeve body 1, a connector 3 fixed to one end of the grouting sleeve body 1, a reinforcing mechanism 4 provided on the outside of the grouting sleeve body 1, and a protective mechanism 5 provided on the outside of the connector 3;

[0033] The reinforcement mechanism 4 includes a lower reinforcement sleeve 41, a support block 42 fixed to the bottom of the lower reinforcement sleeve 41, an upper reinforcement sleeve 43 rotatably connected to the top of the lower reinforcement sleeve 41 via a pivot, a mounting shell 44 fixed to the outside of the lower reinforcement sleeve 41, a connecting block 45 fixed to the outside of the upper reinforcement sleeve 43, a fixed semi-threaded rod 46 mounted on the outside of the mounting shell 44, a movable semi-threaded rod 47 fixed to the outside of the connecting block 45, and a carbon steel threaded sleeve 48 threadedly connected to the outside of the fixed semi-threaded rod 46 and the movable semi-threaded rod 47. The support block 42 and the connecting block 45 are also connected to the upper reinforcement sleeve 41. The grouting sleeve body 1 is fixedly connected. The radius of the movable semi-threaded rod 47 is equal to that of the fixed semi-threaded rod 46. The corresponding surface of the connecting block 45 is in contact with the corresponding surface of the mounting shell 44. The corresponding surface of the upper reinforcing sleeve 43 is in contact with the corresponding surface of the lower reinforcing sleeve 41. One side of the upper reinforcing sleeve 43 is in contact with the outer side of the grouting sleeve body 1. The outer side of the carbon steel threaded sleeve 48 is provided with anti-slip texture. The lower reinforcing sleeve 41 is fixedly connected to the grouting sleeve body 1 through the support block 42. The mounting shell 44 and the lower reinforcing sleeve 41 are bonded and fixed together.

[0034] The protective mechanism 5 includes an upper protective sleeve 51, with a lower protective sleeve 52 rotatably connected to the bottom of the upper protective sleeve 51 via a pivot. An upper limit sleeve 53 is fixed to one side of the upper protective sleeve 51, and a lower support sleeve 54 is fixed to one side of the lower protective sleeve 52. A limit threaded post 55 is installed on the top of the lower support sleeve 54, and a limit threaded sleeve 56 is threadedly connected to the outer side of the limit threaded post 55. A limit pad 57 is fixed to the outer side of the lower protective sleeve 52. A groove is provided inside the upper limit sleeve 53, the size of which is adapted to the size of the limit threaded post 55. One side of the limit pad 57 fits against the outer side of the upper protective sleeve 51, and the lower bottom surface of the limit threaded sleeve 56 fits against the upper top surface of the upper limit sleeve 53.

[0035] In this embodiment, a reinforcement mechanism 4 is provided. A lower reinforcement sleeve 41 is fixed to the outer side of the connecting portion of the grouting sleeve body 1 via a support block 42. After the grouting sleeve body 1 is assembled, rotating the upper reinforcement sleeve 43 on the outer side of the support block 42 allows the movable semi-threaded rod 47 on the outer side of the connecting block 45 to engage with the corresponding surface of the fixed semi-threaded rod 46 on the outer side of the mounting shell 44. A carbon steel threaded sleeve 48 can be used to thread the movable semi-threaded rod 47 and the fixed semi-threaded rod 46, facilitating the fixing of the upper reinforcement sleeve 43 and the lower reinforcement sleeve 41. This reinforces the outer side of the connecting portion of the grouting sleeve body 1, creating a tighter mechanical engagement and enhancing the connection strength of the sleeve. This device not only improves the shear bearing capacity but also disperses the stress, avoiding stress concentration. It is equipped with a protective mechanism 5. After the connector 3 and the grouting sleeve body 1 are fixedly connected, the upper protective sleeve 51 and the lower protective sleeve 52 can be movably fitted onto the outside of the connector 3. At this time, the upper limit sleeve 53 on the outside of the upper protective sleeve 51 can be movably fitted onto the outside of the limit threaded post 55, and one side of the limit pad 57 is in contact with the outside of the upper protective sleeve 51, thus playing a limiting role. Then, the limit threaded sleeve 56 and the limit threaded post 55 are threaded together, thereby protecting the outside of the connector 3 with the upper protective sleeve 51 and the lower protective sleeve 52, improving the connection strength between the connector 3 and the outside of the connection part of the grouting sleeve body 1.

[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A grouting sleeve for connecting reinforcing bars of prefabricated components, comprising a grouting sleeve body (1), characterized in that, An installation pipe (2) is fixed on the outside of the grouting sleeve body (1), a connector (3) is fixed on one end of the grouting sleeve body (1), a reinforcement mechanism (4) is provided on the outside of the grouting sleeve body (1), and a protection mechanism (5) is provided on the outside of the connector (3). The reinforcement mechanism (4) includes a lower reinforcement sleeve (41), a support block (42) is fixed to the bottom of the lower reinforcement sleeve (41), an upper reinforcement sleeve (43) is rotatably connected to the top of the lower reinforcement sleeve (41) via a rotating shaft, an installation shell (44) is fixed to the outside of the lower reinforcement sleeve (41), a connecting block (45) is fixed to the outside of the upper reinforcement sleeve (43), a fixed half-threaded rod (46) is installed on the outside of the installation shell (44), a movable half-threaded rod (47) is fixed to the outside of the connecting block (45), and a carbon steel threaded sleeve (48) is threadedly connected to the outside of the fixed half-threaded rod (46) and the movable half-threaded rod (47).

2. The grouting sleeve for connecting reinforcing bars of prefabricated components according to claim 1, characterized in that, The support block (42) and the grouting sleeve body (1) are fixedly connected, and the radius of the movable semi-threaded rod (47) is equal to the radius of the fixed semi-threaded rod (46).

3. The grouting sleeve for connecting reinforcing bars of prefabricated components according to claim 1, characterized in that, The corresponding surface of the connecting block (45) is fitted with the corresponding surface of the mounting shell (44), and the corresponding surface of the upper reinforcing sleeve (43) is fitted with the corresponding surface of the lower reinforcing sleeve (41).

4. The grouting sleeve for connecting reinforcing bars of prefabricated components according to claim 1, characterized in that, One side of the upper reinforcing sleeve (43) is fitted to the outer side of the connecting grouting sleeve body (1), and the outer side of the carbon steel threaded sleeve (48) is provided with anti-slip texture.

5. A grouting sleeve for connecting reinforcing bars of prefabricated precast components according to claim 1, characterized in that, The lower reinforcing sleeve (41) is fixedly connected to the main body (1) of the grouting sleeve via a support block (42), and the mounting shell (44) and the lower reinforcing sleeve (41) are bonded and fixed together.

6. A grouting sleeve for connecting reinforcing bars of prefabricated components according to claim 1, characterized in that, The protective mechanism (5) includes an upper protective sleeve (51), the bottom of which is rotatably connected to a lower protective sleeve (52) via a pivot. An upper limit sleeve (53) is fixed on one side of the upper protective sleeve (51), and a lower support sleeve (54) is fixed on one side of the lower protective sleeve (52). A limit threaded post (55) is installed on the top of the lower support sleeve (54), and a limit threaded sleeve (56) is threadedly connected to the outer side of the limit threaded post (55). A limit pad (57) is fixed on the outer side of the lower protective sleeve (52).

7. A grouting sleeve for connecting reinforcing bars of prefabricated components according to claim 6, characterized in that, The upper limit sleeve (53) has a groove inside, the size of which is adapted to the size of the limit threaded post (55).

8. A grouting sleeve for connecting reinforcing bars of prefabricated precast components according to claim 7, characterized in that, One side of the limiting pad (57) is in contact with the outer side of the upper protective sleeve (51), and the lower bottom surface of the limiting threaded sleeve (56) is in contact with the upper top surface of the upper limiting sleeve (53).