Multifunctional stud

Abstract

The utility model provides a multifunctional stud, and belongs to the technical field of studs. The problem that an existing stud is single in function is solved. The multifunctional stud comprises a stud body with a nut, the end face of the nut in the stud body is provided with a recessed groove which is recessed inwards in the axial direction, an external column which is in sliding fit with the recessed groove and used for sealing the recessed groove is arranged at the position, located in the recessed groove, of the stud body, and the outer end of the nut is provided with an external column which is connected with the nut and used for limiting the position of the external column. And the limiting unit is clamped and matched with the limiting unit. The multifunctional pen container has the advantage of multiple functions.

Description

Technical Field

[0001] The utility model belongs to the technical field of studs and relates to a multifunctional stud. Background Art

[0002] Studs are cylindrical fasteners with threads on both ends. They are widely used in electric power, chemical industry, oil refining, valves, railways, bridges, steel structures, auto parts, machinery, boiler steel structures, hanging towers, house interior decoration, large-span steel structures and large buildings, etc. However, existing studs are generally used for fastening, and their functions are single, so they cannot meet special assembly or use requirements. Summary of the invention

[0003] The purpose of the utility model is to provide a stud with various functions in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a multifunctional stud, including a stud body with a nut, characterized in that a recessed groove that is axially recessed inward is provided on the end face of the nut in the stud body, and the stud body is provided with an external column that is slidably matched with the external column and is used to seal the recessed groove, and the outer end of the nut is provided with a limiting unit that is connected to the nut and is used to limit the position of the external column and is snap-fitted with the external column.

[0005] In the above-mentioned multifunctional stud, the recessed groove is arranged in a stepped structure.

[0006] In the above-mentioned multifunctional stud, a lubrication channel which is inclined and communicated with the recessed groove is provided on the outer peripheral wall of the stud body.

[0007] In the above-mentioned multifunctional stud, a thread may be provided on the outer peripheral wall of the external column located at the upper end, an axial inward depression is provided on the upper end face of the external column, and the oil filling passage is connected to the depression groove and used for injecting lubricating oil, and a sealing cover connected to the oil filling passage is provided at the opening of the external column.

[0008] In the above-mentioned multifunctional stud, the limiting unit is composed of a limiting sleeve and a plurality of limiting balls, the limiting sleeve is arranged on the nut and connected thereto, the upper end of the nut is provided with a limiting ring connected thereto and used to limit the position of the limiting sleeve, the lower end of the nut is provided with a limiting protrusion protruding radially outward and used to limit the position of the limiting sleeve, the outer peripheral wall of the nut is provided with a plurality of assembly holes for the installation of corresponding limiting balls and connected to the recessed groove, the inner wall of the limiting sleeve is provided with an annular groove for facilitating the assembly and disassembly of the limiting balls, and a dislocation spring is arranged between the limiting protrusion and the limiting sleeve, which is sleeved on the nut and causes the annular groove and the assembly hole to be dislocated.

[0009] In the above-mentioned multifunctional stud, the lower end of the limiting sleeve is provided with an axial outward protrusion, which is slidably matched with the limiting protrusion and is used to protect the protective protrusion of the dislocation spring.

[0010] Compared with the prior art, the multifunctional stud has the following advantages:

[0011] 1. A recessed groove which is axially recessed inward is provided on the end face of the nut in the stud body. An external column which is slidably matched with the external column and used to seal the recessed groove is provided at the stud body. A limiting unit which is connected to the external column and used to limit the position of the external column and is engaged with the external column is provided at the outer end of the nut. The above-mentioned structure makes the stud body multifunctional. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the multifunctional stud.

[0013] In the figure, 1. nut; 2. stud body; 3. recessed groove; 4. external column; 5. lubrication channel; 6. oil filling channel; 7. sealing cover; 8. limit sleeve; 9. limit ball; 10. limit ring; 11. limit protrusion; 12. assembly hole; 13. annular groove; 14. offset spring; 15. protective protrusion. DETAILED DESCRIPTION

[0014] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0015] like Figure 1 As shown, the multifunctional stud comprises a stud body with a nut, wherein an axially inwardly recessed groove is provided on the end surface of the nut in the stud body, an external connecting column is provided at the recessed groove to slide with the external connecting column and seal the recessed groove, and a limiting unit is provided at the outer end of the nut to be connected with the external connecting column and used to limit the position of the external connecting column and to be engaged with the external connecting column, the limiting unit is composed of a limiting sleeve and a plurality of limiting balls, the limiting sleeve is provided on the nut and connected with the nut, a limiting ring is provided on the upper end of the nut to be connected with the nut and used to limit the position of the limiting sleeve, and a limiting ring is provided at the lower end of the nut to be connected with the nut. A limiting protrusion protrudes radially outward and is used to limit the position of the limiting sleeve. A plurality of assembly holes for installing corresponding limiting balls and communicating with the recessed groove are provided on the outer peripheral wall of the nut. An annular groove is provided on the inner wall of the limiting sleeve for facilitating the assembly and disassembly of the limiting balls. A dislocation spring is provided between the limiting protrusion and the limiting sleeve and is sleeved on the nut and displaces the annular groove and the assembly hole. The annular groove and the assembly hole are usually in a displaced state through the dislocation spring. When decoration and disassembly are required, the limiting sleeve can be manually pushed to align them, and reset by the dislocation spring after the manual release.

[0016] As a preferred structure, the recessed groove is arranged in a multi-step structure. When the external pillar is assembled, it will conflict with the step surface at the recessed groove. A spacing can also be left between the external pillar and the step surface through a limiting unit.

[0017] To elaborate further, in order to facilitate subsequent lubrication, a lubrication channel that is inclined and connected to the recessed groove is provided on the outer peripheral wall of the stud body. A thread may be provided on the outer peripheral wall of the external column located at the upper end, and connection to other equipment or structures can be achieved through the external column. It is also easy to disassemble and will not damage the stud body when it rotates. The above-mentioned external column may also have a multi-step structure. The upper end face of the external column is provided with an axially inward recess that is connected to the recessed groove and is used for an oil injection channel for injecting lubricating oil. A sealing cover connected to the oil injection channel is provided at the opening of the external column.

[0018] To elaborate further, in order to protect the misaligned spring, the lower end of the limiting sleeve is provided with an axial outward protrusion, which is slidably matched with the limiting protrusion and is used to protect the protective protrusion of the misaligned spring.

[0019] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0020] Although this article uses more terms such as 1. nut; 2. stud body; 3. recessed groove; 4. external column; 5. lubrication channel; 6. oil injection channel; 7. sealing cover; 8. limit sleeve; 9. limit ball; 10. limit ring; 11. limit protrusion; 12. assembly hole; 13. annular groove; 14. offset spring; 15. protective protrusion, it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A multifunctional stud, comprising a stud body (2) with a nut (1), characterized in that: The end surface of the nut (1) in the stud body (2) is provided with an axially inwardly recessed groove (3); the stud body (2) is provided with an external column (4) at the recessed groove (3) which is slidably matched with the external column (4) and used to seal the recessed groove (3); the outer end of the nut (1) is provided with a limit unit which is connected to the external column (4) and is used to limit the position of the external column (4) and is engaged with the external column (4) by snapping.

2. A multifunctional stud according to claim 1, characterized in that: The recessed groove (3) is arranged in a stepped structure.

3. A multifunctional stud according to claim 1, characterized in that: The outer peripheral wall of the stud body (2) is provided with a lubrication channel (5) which is arranged obliquely and communicates with the recessed groove (3).

4. A multifunctional stud according to claim 1, characterized in that: The outer peripheral wall of the external column (4) at the upper end may be provided with a thread, and the upper end surface of the external column (4) is provided with an axial inward depression, which is connected to the depression groove (3) and is used for injecting lubricating oil into the oil injection passage (6), and the external column (4) is provided with a sealing cover (7) connected to the oil injection passage (6) at the opening of the external column (4).

5. A multifunctional stud according to claim 1, characterized in that: The limiting unit is composed of a limiting sleeve (8) and a plurality of limiting balls (9). The limiting sleeve (8) is sleeved on the nut (1) and connected thereto. The upper end of the nut (1) is provided with a limiting ring (10) connected thereto and used to limit the position of the limiting sleeve (8). The lower end of the nut (1) is provided with a limiting protrusion (11) protruding radially outward and used to limit the position of the limiting sleeve (8). The outer peripheral wall of the nut (1) is provided with a plurality of assembly holes (12) for mounting corresponding limiting balls (9) and communicating with the recessed groove (3). The inner wall of the limiting sleeve (8) is provided with an annular groove (13) for facilitating the assembly and disassembly of the limiting balls (9). A dislocation spring (14) sleeved on the nut (1) and dislocated between the limiting protrusion (11) and the limiting sleeve (8) is provided.

6. A multifunctional stud according to claim 5, characterized in that: The lower end of the limiting sleeve (8) is provided with an axial outward protrusion which is slidably matched with the limiting protrusion (11) and is used to protect the protective protrusion (15) of the misalignment spring (14).

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