Single-cone jacking type split sleeve

Abstract

The utility model provides a single-cone jacking type split sleeve, which relates to the technical field of sleeves and comprises an outer sleeve. A first steel bar is screwed into a second inner sleeve, a second steel bar is screwed into a connector after screwing, a pull block is pulled upwards after screwing, a sliding column is driven by the pull block to slide upwards in a support, and the sliding column can drive a limiting piece to slide upwards in a reserved groove in the upward sliding process. The limiting piece can extrude the spring towards the position where the support is located in the upward sliding process, the limiting piece can relieve the limitation of the inner sleeve and the connector after extruding to a certain degree, the inner sleeve and the first steel bar are inserted into the outer sleeve after relieving, the connector is screwed into the outer sleeve after insertion, and the pull block is loosened after the connector is screwed into the limit distance. And after the spring is loosened, the limiting piece is bounced into the annular limiting groove by the rebound acting force of the spring, so that the connector is limited, the connector is effectively prevented from being easily displaced due to uneven stress or vibration in the use process, and the use stability of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeves, in particular to a single-cone top-tightening split sleeve. Background Art

[0002] Sleeve-type steel bar connecting devices have become the mainstream steel bar connecting methods in building construction. At present, the sleeve connection type sleeve is to process threads at both ends of the steel bars, and the two steel bar end threads are directly tightened and connected with the sleeve, which has the advantage of simple structure.

[0003] In the prior art, such as the "single-cone top-tightening split sleeve" with the Chinese patent publication number: CN221590132U, which includes an outer sleeve. The inner hole of the outer sleeve is provided with a conical surface section and a threaded section. The conical surface section is provided with a conical surface. A conical sleeve is provided. The outer circle of the conical sleeve is a conical surface, and the inner hole is provided with threads. A connector is provided. The outer circle and the inner hole of the connector are both provided with threads. The connector limits the conical sleeve in the inner hole of the outer sleeve, solving the problem that the distance between two pre-connected steel bars is small and the ordinary threaded sleeve cannot complete the connection. However, the sleeve does not provide a limiting structure for the connector. Due to the lack of a limiting structure, the connector is prone to displacement due to uneven stress or vibration during use, resulting in loose or ineffective connection. Therefore, improvement is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the connector is prone to displacement due to uneven stress or vibration during use in the prior art, and to propose a single-cone top-tightening split sleeve.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A single-cone top-tightening split sleeve, which includes an outer sleeve. An inner sleeve is installed inside the outer sleeve. A steel bar one is installed inside the inner sleeve. A connector is installed inside the outer sleeve. A steel bar two is installed inside the connector. An annular limiting groove is opened on the outer wall of the connector. A reserved groove is penetrated through the outer wall of the outer sleeve. A bracket is fixedly installed on the outer wall of the outer sleeve. A sliding column is slidably connected inside the bracket. A limiting member is fixedly installed at the bottom end of the sliding column. A pulling block is fixedly installed at the top end of the sliding column. A spring is sleeved on the outer wall of the sliding column.

[0006] Preferably, a wrench platform is fixedly installed at one end of the connector away from the outer sleeve, and the steel bar two is slidably connected with the wrench platform.

[0007] Preferably, the inner sleeve is slidably connected with the outer sleeve, and the inner sleeve is threadedly connected with the steel bar one.

[0008] Preferably, the connector is threadedly connected with the outer sleeve, and the steel bar two is threadedly connected with the connector.

[0009] Preferably, anti-slip rings are uniformly and fixedly installed on the outer wall of the pulling block.

[0010] Preferably, one end of the spring is fixedly connected to the limiting member, and the other end of the spring is fixedly connected to the bracket.

[0011] Preferably, the limiting member is slidably connected to the reserved groove, and the annular limiting groove is slidably connected to the limiting member.

[0012] Preferably, oil outlet holes are uniformly penetrated through the outer walls of the first steel bar and the second steel bar, an oil injection hole is formed in the outer walls of the first steel bar and the second steel bar, and the oil injection hole is communicated with the oil outlet holes.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, the first steel bar is screwed into the second inner sleeve. After screwing in, the second steel bar is screwed into the connector. After screwing in, the pulling block is pulled upward. The sliding column is driven by the pulling block to slide upward inside the bracket. During the upward sliding process of the sliding column, the limiting member will be driven to slide upward inside the reserved groove. During the upward sliding process of the limiting member, the spring will be squeezed towards the bracket. After being squeezed to a certain extent, the limiting member will release the restriction on the inner sleeve and the connector. After release, the inner sleeve and the first steel bar are inserted into the outer sleeve. After insertion, the connector is screwed into the outer sleeve. After screwing to the limit distance, the pulling block is released. After release, the spring's resilience force will pop the limiting member into the annular limiting groove, thereby limiting the connector. This effectively avoids the connector from being displaced easily due to uneven force or vibration during use, and improves the use stability of the connector.

[0015] 2. In the present utility model, by injecting lubricating oil into the oil injection hole, the injected lubricating oil will flow along the oil injection hole to multiple oil outlet holes. Subsequently, the lubricating oil in the oil outlet holes will uniformly flow to the connection parts between the first steel bar, the second steel bar and the inner sleeve and the connector, thereby achieving the effects of lubrication and rust prevention, and effectively avoiding the first steel bar, the second steel bar, the inner sleeve and the connector from being easily rusted and stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a single-cone tightening type split sleeve proposed by the present utility model;

[0017] Figure 2 is a single-cone tightening type split sleeve proposed by the present utility model Figure 1 enlarged view of part A;

[0018] Figure 3 is an exploded structure diagram of a single-cone tightening type split sleeve proposed by the present utility model;

[0019] Figure 4 The present utility model provides a schematic cross-sectional structure diagram of a single-cone tightening type split sleeve.

[0020] Legend: 1. Outer sleeve; 2. Inner sleeve; 3. First steel bar; 4. Connector; 5. Second steel bar; 6. Wrench platform; 7. Annular limiting groove; 8. Reserved groove; 9. Bracket; 10. Slide post; 11. Limiting part; 12. Pulling block; 13. Spring; 14. Anti-slip ring; 15. Oil injection hole; 16. Oil outlet hole. Specific implementation manners

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: As Figures 1-4 shown, the present utility model provides a technical solution: a single-cone tightening type split sleeve, including an outer sleeve 1, an inner sleeve 2 is installed inside the outer sleeve 1, a first steel bar 3 is installed inside the inner sleeve 2, a connector 4 is installed inside the outer sleeve 1, a second steel bar 5 is installed inside the connector 4, an annular limiting groove 7 is opened on the outer wall of the connector 4, a reserved groove 8 is penetrated through the outer wall of the outer sleeve 1, a bracket 9 is fixedly installed on the outer wall of the outer sleeve 1, a slide post 10 is slidably connected inside the bracket 9, a limiting part 11 is fixedly installed at the bottom end of the slide post 10, a pulling block 12 is fixedly installed at the top end of the slide post 10, a spring 13 is sleeved on the outer wall of the slide post 10, a wrench platform 6 is fixedly installed at one end of the connector 4 away from the outer sleeve 1, the second steel bar 5 is slidably connected with the wrench platform 6, the inner sleeve 2 is slidably connected with the outer sleeve 1, the inner sleeve 2 is threadedly connected with the first steel bar 3, the connector 4 is threadedly connected with the outer sleeve 1, the second steel bar 5 is threadedly connected with the connector 4, anti-slip rings 14 are uniformly fixedly installed on the outer wall of the pulling block 12, one end of the spring 13 is fixedly connected with the limiting part 11, the other end of the spring 13 is fixedly connected with the bracket 9, the limiting part 11 is slidably connected with the reserved groove 8, and the annular limiting groove 7 is slidably connected with the limiting part 11.

[0024] In this embodiment, the first reinforcing bar 3 is screwed into the inner sleeve 2. After screwing it in, the second reinforcing bar 5 is screwed into the connector 4. After screwing it in, the pulling block 12 is pulled upward. The sliding column 10 is driven by the pulling block 12 to slide upward inside the bracket 9. During the upward sliding process of the sliding column 10, the limiting member 11 is driven to slide upward inside the reserved groove 8. During the upward sliding process of the limiting member 11, the spring 13 is squeezed towards the position where the bracket 9 is located. After being squeezed to a certain extent, the limiting of the inner sleeve 2 and the connector 4 by the limiting member 11 is released. After the release, the inner sleeve 2 and the first reinforcing bar 3 are inserted into the outer sleeve 1. After insertion, the connector 4 is screwed into the outer sleeve 1. After screwing to the limit distance, the pulling block 12 is released. After the release, the elastic force of the spring 13 will pop the limiting member 11 into the annular limiting groove 7, thereby limiting the connector 4. This effectively avoids the displacement of the connector 4 during use due to uneven force or vibration, and improves the use stability of the connector 4.

[0025] Embodiment 2: As Figure 4 shown, oil outlet holes 16 are uniformly formed through the outer walls of the first reinforcing bar 3 and the second reinforcing bar 5, and oil injection holes 15 are formed in the outer walls of the first reinforcing bar 3 and the second reinforcing bar 5. The oil injection holes 15 are communicated with the oil outlet holes 16.

[0026] In this embodiment, by injecting lubricating oil into the oil injection holes 15, the injected lubricating oil will flow along the oil injection holes 15 to multiple oil outlet holes 16. Subsequently, the lubricating oil in the oil outlet holes 16 will uniformly flow to the joints between the first reinforcing bar 3, the second reinforcing bar 5, the inner sleeve 2, and the connector 4, thereby achieving the effects of lubrication and rust prevention, and effectively avoiding the easy rusting and jamming between the first reinforcing bar 3, the second reinforcing bar 5, the inner sleeve 2, and the connector 4.

[0027] Working principle of this embodiment: During use, first screw steel bar 1 into inner sleeve 2, and after screwing it in, screw steel bar 2 into connector 4. After screwing it in, pull up pull block 12. The pull block 12 drives sliding column 10 to slide upward inside support 9. During the upward sliding process of sliding column 10, it drives limiting member 11 to slide upward inside reserved groove 8. During the upward sliding process of limiting member 11, spring 13 is squeezed towards the location of support 9. After being squeezed to a certain extent, the restriction of inner sleeve 2 and connector 4 by limiting member 11 is released. After the release, insert inner sleeve 2 and steel bar 1 into outer sleeve 1. After insertion, screw connector 4 into outer sleeve 1. After screwing to the limit distance, release pull block 12. After release, the resilience force of spring 13 will pop limiting member 11 into annular limiting groove 7, thereby limiting connector 4, effectively avoiding the displacement of connector 4 due to uneven force or vibration during use and improving the use stability of connector 4. To prevent steel bar 1, steel bar 2, inner sleeve 2, and connector 4 from being easily rusted and stuck, lubricating oil can be injected into oil injection hole 15. The injected lubricating oil will flow along oil injection hole 15 to multiple oil outlet holes 16. Subsequently, the lubricating oil in oil outlet holes 16 will evenly flow to the connection between steel bar 1, steel bar 2, inner sleeve 2, and connector 4, thereby achieving the effect of lubrication and rust prevention and effectively avoiding the easy rusting and sticking between steel bar 1, steel bar 2, inner sleeve 2, and connector 4.

[0028] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A single-cone top-tightening split sleeve, comprising an outer sleeve (1), characterized in that: An inner sleeve (2) is installed inside the outer sleeve (1), a first steel bar (3) is installed inside the inner sleeve (2), a connector (4) is installed inside the outer sleeve (1), a second steel bar (5) is installed inside the connector (4), an annular limiting groove (7) is formed in the outer wall of the connector (4), a reserved groove (8) is formed through the outer wall of the outer sleeve (1), a bracket (9) is fixedly installed on the outer wall of the outer sleeve (1), a sliding column (10) is slidably connected inside the bracket (9), a limiting member (11) is fixedly installed at the bottom end of the sliding column (10), a pulling block (12) is fixedly installed at the top end of the sliding column (10), and a spring (13) is sleeved on the outer wall of the sliding column (10).

2. The single-cone top-tightening split sleeve according to claim 1, wherein: A wrench platform (6) is fixedly installed at one end of the connector (4) away from the outer sleeve (1), and the second steel bar (5) is slidably connected with the wrench platform (6).

3. The single-cone tightening type split sleeve according to claim 1, characterized in that: The inner sleeve (2) is slidably connected with the outer sleeve (1), and the inner sleeve (2) is threadedly connected with the first steel bar (3).

4. The single-cone top-tightening split sleeve according to claim 1, characterized in that: The connector (4) is threadedly connected with the outer sleeve (1), and the second steel bar (5) is threadedly connected with the connector (4).

5. The single-cone tightening type split sleeve according to claim 1, characterized in that: Anti-slip rings (14) are uniformly fixedly installed on the outer wall of the pulling block (12).

6. The single-cone top-tightening split sleeve according to claim 1, wherein: One end of the spring (13) is fixedly connected with the limiting member (11), and the other end of the spring (13) is fixedly connected with the bracket (9).

7. The single-cone tightening type split sleeve according to claim 1, characterized in that: The limiting member (11) is slidably connected with the reserved groove (8), and the annular limiting groove (7) is slidably connected with the limiting member (11).

8. The single-cone top-tightening split sleeve according to claim 1, wherein: Oil outlet holes (16) are uniformly formed through the outer walls of the first steel bar (3) and the second steel bar (5), an oil injection hole (15) is formed in the outer walls of the first steel bar (3) and the second steel bar (5), and the oil injection hole (15) is communicated with the oil outlet holes (16).

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