Locking nut for deep hole

Abstract

The utility model discloses a locking nut for a deep hole, which comprises a main locking nut and an auxiliary locking nut, the rear side of the main locking nut is fixedly connected with the auxiliary locking nut in a penetrating manner, and the aperture of the main locking nut is equal to that of the auxiliary locking nut, so that the locking nut can be screwed and assembled in a narrow deep hole. Similarly, the locking nut of the deep hole can be screwed and taken out, the design of the mounting and dismounting structure of the locking nut is simpler, the second threaded groove in the outer side of the trapezoidal table can be clamped and fixed in the threaded tooth groove of the sleeved screw rod, and four points simultaneously enclasp a mounting component, so that the anti-loosening effect of the locking nut is more stable, and the locking nut is more convenient to use. The design structure is simple, a large number of complex structures do not need to be added, oil injection operation is more convenient, oil injection lubrication operation can be completed without continuously conveying lubricating oil through oil injection equipment, and the specification requirement of the oil injection equipment is greatly lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware locking nuts, in particular to a locking nut used for deep holes. Background Art

[0002] Deep hole nut is a special fixing part specially used for deep hole fixings. It is divided into carbon steel, stainless steel, etc. according to different materials.

[0003] In the prior art, application number 202121654685.3 discloses a locking nut for deep holes, in which a sleeve is sleeved on one side of the outer wall of the locking sleeve, and a sleeve is rotatably connected to the side of the locking sleeve away from the outer wall of the sleeve; the structure of the above-mentioned device is complicated, and it is not convenient to screw it into the deep hole or unscrew it from the deep hole in a narrow deep hole. Moreover, the increased structure is complicated and the operation is more cumbersome. The oil filling hole needs to be continuously injected with lubricating oil, and the specification requirements of the oil filling equipment are greatly improved.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In response to the problems in the related art, the present invention proposes a locking nut for deep holes to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A locking nut for a deep hole comprises a main locking nut and a secondary locking nut. The rear side of the main locking nut is fixedly connected to the secondary locking nut, and the aperture of the main locking nut is equal to the aperture of the secondary locking nut. A first locking hole is equidistantly penetrated in an annular manner on the outer side of the secondary locking nut, and a second locking hole is equidistantly penetrated in an annular manner on the outer side of the main locking nut. The position of the first locking hole corresponds to the position of the second locking hole, and the apertures are equal.

[0008] Preferably, an arc-shaped engagement groove is dug in an annular manner on the outer edge of the main locking nut, and prismatic notches are dug at equal intervals on the outer wall of the auxiliary locking nut, and anti-slip protrusions are provided on the inner walls of the arc-shaped engagement groove and the inner walls of the prismatic notches.

[0009] Preferably, a movable notch is provided through the middle of the inner wall of each of the first locking hole and the second locking hole, and a trapezoidal platform is slidably connected inside the movable notch.

[0010] Preferably, the bottom side structure of the trapezoidal platform matches the inner wall structure of the main locking nut and the auxiliary locking nut, and is movably engaged with the inner wall of the main locking nut and the auxiliary locking nut, and a first threaded groove is provided on the inner side of the trapezoidal platform.

[0011] Preferably, the structure of the first thread groove matches the thread groove structure on the inner wall of the main locking nut and the auxiliary locking nut, and the inner wall of the first locking hole and the second locking hole are both provided with a second thread groove.

[0012] Preferably, an external threaded column is provided inside the first locking hole, and the external threaded column is threadedly connected to the second threaded grooves on the inner walls of the first locking hole and the second locking hole respectively, and the external threaded column is movably abutted against the outer side of the trapezoidal platform.

[0013] Preferably, an oil filling hole is provided through the middle of the external threaded column, a sealing plug is fixedly engaged at the outer end of the oil filling hole, and oil seepage holes are provided through the outer wall of the external threaded column at equal intervals.

[0014] The beneficial effects of the present invention are as follows: a special slotted sleeve can be used to assemble on the top of the locking nut, and the locking nut can be screwed and assembled in a narrow deep hole. Similarly, the locking nut in the deep hole can also be screwed out. The design of the installation and removal structure of the locking nut is simpler. The second thread groove on the outer side of the trapezoidal platform will be engaged and fixed with the thread groove of the sleeved screw. The four points simultaneously clamp the mounting component, making the anti-loosening effect of the locking nut more stable. The design structure is simple and does not require the addition of a large number of complex structures. The oiling operation is more convenient and does not require the continuous delivery of lubricating oil through the oiling equipment to complete the oiling and lubrication operation, which greatly reduces the specification requirements of the oiling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a locking nut for a deep hole according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the appearance structure of a main locking nut of a locking nut for a deep hole according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of a secondary locking nut for a deep hole locking nut according to an embodiment of the present utility model;

[0019] Figure 4 The present invention is a schematic diagram of the external threaded column structure of a locking nut for a deep hole according to an embodiment of the present invention.

[0020] In the picture:

[0021] 1. Main locking nut; 2. Secondary locking nut; 3. First locking hole; 4. Second locking hole; 5. Arc-shaped engagement groove; 6. Prismatic notch; 7. Movable notch; 8. Trapezoidal platform; 9. First thread groove; 10. Second thread groove; 11. External thread column; 12. Oil filling hole; 13. Oil seepage hole. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the present invention, a locking nut for a deep hole is provided.

[0024] Example 1

[0025] like Figure 1-4 As shown, according to an embodiment of the present invention, a locking nut for a deep hole comprises a main locking nut 1 and a secondary locking nut 2. The rear side of the main locking nut 1 is fixedly connected to the secondary locking nut 2 through the main locking nut 1, and the aperture of the main locking nut 1 is equal to the aperture of the secondary locking nut 2. A first locking hole 3 is equidistantly penetrated through the outer side of the secondary locking nut 2 in an annular manner, and a second locking hole 4 is equidistantly penetrated through the outer side of the main locking nut 1 in an annular manner. The position of the first locking hole 3 corresponds to the position of the second locking hole 4, and the apertures are equal. An arc-shaped engaging groove 5 is dug in an annular manner on the outer edge of the main locking nut 1, and the secondary locking nut 2 is fixedly connected to the main locking nut 1 through the secondary locking nut 2. Prismatic notches 6 are dug at equal intervals on the outer wall of the locking nut 2, and anti-slip protrusions are provided on the inner wall of the arc-shaped engaging groove 5 and the inner wall of the prismatic notch 6. When the locking nut is screwed as a whole into the deep hole, the sleeve with a slotted bottom can be respectively embedded in the arc-shaped engaging groove 5 on the outer side of the main locking nut 1. A special slotted sleeve can be used to assemble on the top of the locking nut, and the locking nut can be screwed and assembled in a narrow deep hole. Similarly, the locking nut in the deep hole can also be screwed out, and the design of the installation and removal structure of the locking nut is simpler.

[0026] Example 2

[0027] like Figure 1-4As shown, according to an embodiment of the present invention, a locking nut for a deep hole includes a main locking nut 1 and a secondary locking nut 2. The rear side of the main locking nut 1 is fixedly connected to the secondary locking nut 2, and the aperture of the main locking nut 1 is equal to the aperture of the secondary locking nut 2. A first locking hole 3 is equidistantly penetrated through the outer side of the secondary locking nut 2 in an annular manner, and a second locking hole 4 is equidistantly penetrated through the outer side of the main locking nut 1. The position of the first locking hole 3 corresponds to the position of the second locking hole 4, and the apertures are equal. A movable notch 7 is penetrated through the middle of the inner wall of the first locking hole 3 and the second locking hole 4, and a trapezoidal platform 8 is slidably connected inside the movable notch 7. The bottom side structure of the trapezoidal platform 8 matches the inner wall structure of the main locking nut 1 and the secondary locking nut 2, and is movably engaged with the inner wall of the main locking nut 1 and the secondary locking nut 2, and a first threaded groove 9 is provided on the inner side of the trapezoidal platform 8, and the structure of the first threaded groove 9 matches the thread groove on the inner wall of the main locking nut 1 and the secondary locking nut 2 The structures match each other, and a second threaded groove 10 is provided on the inner wall of the first locking hole 3 and the second locking hole 4, and an external threaded column 11 is provided inside the first locking hole 3. The external threaded column 11 is threadedly connected with the second threaded groove 10 on the inner wall of the first locking hole 3 and the second locking hole 4 respectively, and the external threaded column 11 is movably abutted against the outer side of the trapezoidal platform 8. After the locking nut is installed, the external threaded column 11 can be screwed and installed in the second locking hole 4 respectively, so that the external threaded column 11 is screwed and moved in the second locking hole 4 and the first locking hole 3 respectively. In the process of moving the external threaded column 11, the external threaded column 11 will push the trapezoidal platform 8 into the holes of the main locking nut 1 and the auxiliary locking nut 2, and the second threaded groove 10 on the outer side of the trapezoidal platform 8 will be engaged and fixed in the threaded groove of the sleeved screw, and the four-point position simultaneously holds the installation component tightly, so that the anti-loosening effect of the locking nut is more stable, the design structure is simple, and there is no need to add a large number of complex structures.

[0028] Example 3

[0029] like Figure 1-4As shown, according to an embodiment of the present invention, a locking nut for a deep hole includes a main locking nut 1 and a secondary locking nut 2. The rear side of the main locking nut 1 is fixedly connected to the secondary locking nut 2 through a through hole, and the aperture of the main locking nut 1 is equal to the aperture of the secondary locking nut 2. A first locking hole 3 is equidistantly penetrated in an annular manner on the outer side of the secondary locking nut 2, and a second locking hole 4 is equidistantly penetrated in an annular manner on the outer side of the main locking nut 1. The position of the first locking hole 3 corresponds to the position of the second locking hole 4, and the apertures are equal. An oil filling hole 12 is penetrated in the middle of the external threaded column 11, and a sealing member is fixed to the outer end of the oil filling hole 12. The plug is provided, and oil seepage holes 13 are equidistantly provided on the outer wall of the externally threaded column 11. The oil filling hole 12 is specifically a hexagonal hole. The externally threaded column 11 can be rotated with a hexagonal wrench, and the oil filling hole 12 can be filled with lubricating oil. In the process of screwing the externally threaded column 11, the fluid lubricating oil inside the oil filling hole 12 will be discharged from the oil seepage hole 13 as the externally threaded column 11 is rotated. The opened movable notch 7 can make the lubricating oil fully contact with the component connected to the locking nut, making the oil filling operation more convenient. There is no need to continuously deliver lubricating oil through the oil filling equipment to complete the oil filling and lubrication operation, which greatly reduces the specification requirements of the oil filling equipment.

[0030] In summary, with the help of the above technical solution of the present invention, when this device is in use, when the locking nut is screwed and installed in the deep hole as a whole, the sleeve with a slot at the bottom can be respectively embedded in the arc-shaped engaging groove 5 on the outside of the main locking nut 1, and a special slotted sleeve can be used to assemble on the top of the locking nut, so that the locking nut can be screwed and assembled in a narrow deep hole. Similarly, the locking nut of the deep hole can also be screwed out. After the locking nut is installed, the external threaded column 11 can be screwed and installed in the second locking hole 4 respectively, so that the external threaded column 11 is screwed and moved in the second locking hole 4 and the first locking hole 3 respectively, and the external threaded column 11 is screwed and moved in the outside During the movement of the threaded column 11, the external threaded column 11 will push the trapezoidal platform 8 into the holes of the main locking nut 1 and the auxiliary locking nut 2. The second threaded groove 10 on the outside of the trapezoidal platform 8 will be engaged and fixed with the threaded tooth groove of the sleeved screw, and the four points will simultaneously hold the mounting component tightly. The oil filling hole 12 is specifically a hexagonal hole. The external threaded column 11 can be rotated with a hexagonal wrench, and the oil filling hole 12 can be filled with lubricating oil. In the process of screwing the external threaded column 11, the liquid lubricating oil inside the oil filling hole 12 will be discharged from the oil seepage hole 13 as it rotates. The opened movable notch 7 can make the lubricating oil fully contact with the component connected to the locking nut.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A locking nut for a deep hole, comprising a main locking nut (1) and a secondary locking nut (2), characterized in that: The rear side of the main locking nut (1) is fixedly connected to the auxiliary locking nut (2), and the aperture of the main locking nut (1) is equal to the aperture of the auxiliary locking nut (2). The outer side of the auxiliary locking nut (2) is provided with a first locking hole (3) at equal intervals through the annular portion, and the outer side of the main locking nut (1) is provided with a second locking hole (4) at equal intervals through the annular portion. The position of the first locking hole (3) corresponds to the position of the second locking hole (4), and the apertures are equal.

2. A locking nut for a deep hole according to claim 1, characterized in that: An arc-shaped engaging groove (5) is formed in an annular manner on the outer edge of the main locking nut (1), and prismatic notches (6) are formed at equal intervals on the outer wall of the auxiliary locking nut (2), and anti-slip protruding particles are provided on the inner walls of the arc-shaped engaging groove (5) and the inner walls of the prismatic notches (6).

3. A locking nut for a deep hole according to claim 2, characterized in that: A movable notch (7) is provided through the middle of the inner wall of each of the first locking hole (3) and the second locking hole (4), and a trapezoidal platform (8) is slidably connected inside the movable notch (7).

4. A locking nut for a deep hole according to claim 3, characterized in that: The bottom side structure of the trapezoidal platform (8) matches the inner wall structure of the main locking nut (1) and the auxiliary locking nut (2), and is movably engaged with the inner walls of the main locking nut (1) and the auxiliary locking nut (2), and a first thread groove (9) is provided on the inner side of the trapezoidal platform (8).

5. A locking nut for a deep hole according to claim 4, characterized in that: The structure of the first thread groove (9) matches the thread groove structure on the inner wall of the main locking nut (1) and the auxiliary locking nut (2), and the inner wall of the first locking hole (3) and the second locking hole (4) are both provided with a second thread groove (10).

6. The locking nut for deep hole according to claim 5, characterized in that: The first locking hole (3) is provided with an external thread column (11) inside, and the external thread column (11) is threadedly connected with the second thread groove (10) on the inner wall of the first locking hole (3) and the second locking hole (4), and the external thread column (11) is movably abutted against the outer side of the trapezoidal platform (8).

7. A locking nut for a deep hole according to claim 6, characterized in that: An oil filling hole (12) is provided through the middle of the external thread column (11), a sealing plug is fixedly engaged at the outer end of the oil filling hole (12), and oil seepage holes (13) are provided through the outer wall of the external thread column (11) at equal intervals.

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