Nut capable of preventing looseness

Abstract

The utility model relates to a nut capable of preventing looseness, which belongs to the technical field of nuts and comprises a bolt, a gasket and a nut body are movably connected to the axis of the bolt, the top of the gasket is fixed to the nut body, and a limiting rod penetrating through the bolt is movably connected to the nut body. The nut body comprises a threaded column movably connected with the bolt, a cylinder is fixed to the outer side of the threaded column, a shell is fixed to the outer side of the cylinder, the limiting rod is movably connected with the shell, a limiting assembly is arranged at the top of the threaded column, and an adjusting assembly is arranged on the cylinder. According to the nut capable of being prevented from loosening, through cooperative arrangement of the limiting assembly and the adjusting assembly, mounting and dismounting of the nut are facilitated, meanwhile, one-way rotation of the nut is achieved through structural cooperation of the limiting assembly, and therefore the anti-loosening function of the nut is achieved, the nut is further protected through arrangement of the limiting rod, and the nut is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a nut capable of preventing loosening. Background Art

[0002] Nuts and bolts are widely used mechanical fasteners, usually used to connect and fix machines to support structures. In some special usage environments, considering the impact of working environment factors on the fixation of nut structures, special loose nuts are required to fix the connections.

[0003] For example, a Chinese patent (publication number: CN218207417U) discloses a nut structure that prevents loosening. An inwardly bent cone is provided at the upper end of the main nut. The cone is a structure with multiple groups of grooves evenly arranged longitudinally on an annular truncated cone. An inner conical surface is provided on the inner side of the lower part of the locking nut. The top diameter of the inner conical surface is smaller than the diameter of the upper end surface of the cone, and the bottom diameter of the inner conical surface is larger than the diameter of the lower end surface of the cone. When the locking nut is screwed down, the inner conical surface of the locking nut is pressed into the outer conical surface of the main nut. Since there is a cutter groove under the cone of the main nut, it has a little elastic deformation ability. Under the action of the taper, the four-petal cone will tightly hold the bolt from the surrounding, thereby achieving the purpose of locking and preventing loosening.

[0004] The anti-loosening function of the main nut is achieved by generating an extrusion force on the vertebral body on the main nut when locking. However, when the vertebral body is squeezed, the nut will be subjected to a reverse force, and it is easy to loosen due to external interference after locking. Therefore, a nut that can prevent loosening is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a nut which can prevent loosening, has the advantages of good anti-loosening effect, and solves the problem that the nut is easy to loosen.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a nut capable of preventing loosening, comprising a bolt, a washer and a nut body being movably connected at the axis of the bolt, the top of the washer being fixed to the nut body, and a limiting rod penetrating the bolt being movably connected to the nut body;

[0007] The nut body includes a threaded column movably connected to the bolt, a cylinder is fixed to the outside of the threaded column, a shell is fixed to the outside of the cylinder, the limiting rod is movably connected to the shell, a limiting assembly is provided on the top of the threaded column, and an adjustment assembly is provided on the cylinder;

[0008] The limiting assembly includes four rotating shafts movably connected to the top of the threaded column, the outer sides of the four rotating shafts are fixed with arc-shaped plates, the tops of the four arc-shaped plates are fixed with limiting blocks, the four limiting blocks are fitted with bolts, and the backs of the four arc-shaped plates are fixed with connecting plates.

[0009] Furthermore, the bolt and the front and rear sides of the shell are provided with limiting holes, and the limiting rod is movably connected to the bolt and the shell through the four limiting holes.

[0010] Furthermore, a threaded hole is provided at the axis of the threaded column, and the bolt is threadedly connected to the threaded column through the threaded hole.

[0011] Furthermore, four rotation grooves are formed on the top of the threaded column, and the rotation shaft is rotationally connected to the threaded column through the rotation grooves.

[0012] Furthermore, the adjustment assembly includes four movable blocks movably connected to the cylinder, a fixed block is fixed to the top of the cylinder, the inner cavity of the fixed block is movably connected to a fixed disk, the bottom of the fixed disk is fixed with an annular bar, the tops of the four movable blocks are all fixed to the annular bar, the top of the fixed disk is movably connected to a rotating plate extending to the outside of the outer shell, and the back of the rotating plate is fixed with an adjustment disk.

[0013] Furthermore, a groove is provided at the bottom of the movable block, a connecting shaft is rotatably connected between the left and right walls of the groove, and a connecting plate is fixed to the outer side of the connecting shaft.

[0014] Furthermore, four adjustment grooves are provided on the inner wall of the cylinder, and an annular through groove connected to the four adjustment grooves is provided in the inner cavity of the cylinder. The four movable blocks are respectively located in the four adjustment grooves and movably connected to the annular through grooves, and the inner and outer annular surfaces of the annular strip are both in contact with the annular through grooves.

[0015] Furthermore, the fixed disk includes a connecting plate that passes through the fixed block and the cylinder in sequence and extends into the adjustment groove. The bottom of the connecting plate is fixed to the annular bar, and a disc is fixed on the top of the connecting plate. The bottom of the disc is in contact with the fixed block.

[0016] Furthermore, the top of the disc is rotatably connected to an adjusting shaft, the top of the adjusting shaft is fixed to the rotating plate, the outer side of the shell is provided with a receiving groove extending therethrough, the middle portion of the receiving groove is a recessed structure, and the rotating plate is adapted to the recessed portion.

[0017] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0018] The nut which can prevent loosening is convenient for installation and removal of the nut by cooperating with the limit assembly and the adjustment assembly. At the same time, the structural cooperation of the limit assembly realizes the one-way rotation of the nut, thereby realizing the anti-loosening function of the nut. The setting of the limit rod further protects the nut and prevents the nut from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the main structure of the nut of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the connection structure of the bolt and nut body of the utility model;

[0021] Figure 3 This is an exploded view of the bolt and nut body of the utility model;

[0022] Figure 4 This is a three-dimensional diagram of the limiting component and the adjusting component of the utility model.

[0023] In the figure: 1 bolt, 2 gasket, 3 housing, 4 limiting rod, 5 cylinder, 6 threaded column, 7 limiting assembly, 701 rotating shaft, 702 arc plate, 703 limiting block, 704 connecting plate, 8 adjusting assembly, 801 movable block, 802 annular bar, 803 fixed block, 804 fixed disk, 805 rotating plate, 806 adjusting disk. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 3 In this embodiment, a nut that can prevent loosening includes a bolt 1. A gasket 2 and a nut body are movably connected at the axis of the bolt 1. The setting of the gasket 2 is conducive to further stabilizing the nut and improving the locking effect of the nut. The top of the gasket 2 is fixed to the nut body. A limiting rod 4 that penetrates the bolt 1 is movably connected to the nut body. Limiting holes are provided on the front and rear sides of the bolt 1 and the shell 3. The limiting rod 4 is movably connected to the bolt 1 and the shell 3 through four limiting holes.

[0026] It can be understood that by inserting the limiting rod 4 into the bolt 1 and the nut body, it is helpful to prevent the nut from falling off and provide insurance for the stable installation of the nut.

[0027] It should be noted that the nut body includes a threaded column 6 movably connected to the bolt 1, four rotation grooves are provided on the top of the threaded column 6, and a threaded hole is provided at the axis of the threaded column 6. The bolt 1 is threadedly connected to the threaded column 6 through the threaded hole. The setting of the threaded hole is conducive to the nut to achieve a preliminary locking function. A cylinder 5 is fixed to the outside of the threaded column 6, and four adjustment grooves are provided on the inner wall of the cylinder 5. An annular through groove connected to the four adjustment grooves is provided in the inner cavity of the cylinder 5. The setting of the adjustment groove and the annular through groove is conducive to providing implementation space for the limit assembly 7 and the adjustment assembly 8, which is conducive to the realization of the anti-loosening function of the nut. The outer side of the cylinder 5 is fixed with an outer shell 3, and the limit rod 4 is movably connected to the outer shell 3. A limit assembly 7 is provided on the top of the threaded column 6, and an adjustment assembly 8 is provided on the cylinder 5.

[0028] It should also be noted that by setting the limit component 7 and the adjustment component 8 in the nut body, it is beneficial to realize the anti-loosening function of the nut, and by setting the threaded column 6, it is beneficial to preliminarily realize the locking function of the nut.

[0029] In this embodiment, the anti-loosening ability of the nut is preliminarily achieved through the threaded connection of the nut. The coordinated setting of the limiting component 7 and the adjusting component 8 is conducive to achieving the limiting function of the nut, and further conducive to achieving the anti-loosening function of the nut. Finally, the housing 3 and the bolt 1 are limited by the limiting rod 4 to prevent the nut from falling off.

[0030] See also Figure 4 In order to realize the anti-loosening function of the nut, the limiting assembly 7 in this embodiment includes four rotating shafts 701 movably connected to the top of the threaded column 6. The rotating shaft 701 is rotatably connected to the threaded column 6 through a rotating groove. The setting of the rotating shaft 701 is conducive to adjusting the angle of the arc plate 702, which is conducive to realizing the limiting function of the nut. The outer sides of the four rotating shafts 701 are fixed with arc plates 702, and the tops of the four arc plates 702 are fixed with limiting blocks 703. The four limiting blocks 703 are all fitted with the bolt 1. The fitting setting is conducive to realizing one-way rotation of the nut, which is conducive to realizing the anti-loosening function of the nut. The backs of the four arc plates 702 are fixed with connecting plates 704.

[0031] It is not difficult to see that the angle adjustment of the arc plate 702 is achieved by hingedly connecting the arc plate 702 and the connecting plate 704 to the rotating shaft 701 and the movable block 801 respectively, which is beneficial to the disassembly and installation of the nut.

[0032] In general, the adjustment assembly 8 includes four movable blocks 801 movably connected to the cylinder 5. A groove is provided at the bottom of the movable block 801. A connecting shaft is rotatably connected between the left and right walls of the groove. The setting of the connecting shaft is conducive to achieving the angle adjustment of the connecting plate 704, which is conducive to achieving the limiting function of the nut. The outer side of the connecting shaft is fixed with a connecting plate 704, and the top of the cylinder 5 is fixed with a fixed block 803. The inner cavity of the fixed block 803 is movably connected with a fixed disk 804. The fixed disk 804 includes a plurality of holes that sequentially penetrate the fixed block 803 and the cylinder 5 and extend to the adjustment The connecting plate in the groove, the bottom of the connecting plate is fixed to the annular strip 802, the top of the connecting plate is fixed with a disc, the bottom of the disc is fitted with the fixed block 803, the bottom of the fixed plate 804 is fixed with an annular strip 802, the tops of the four movable blocks 801 are all fixed to the annular strip 802, and by fixing the movable blocks 801 to the annular strip 802, it is convenient to realize the control of the four arc plates 702 by the adjusting disk 806, the four movable blocks 801 are respectively located in the four adjusting grooves and are movably connected to the annular through groove, and the inner and outer annular surfaces of the annular strip 802 are both fitted with the annular through groove.

[0033] In addition, the fixed relationship between the movable block 801, the annular bar 802 and the fixed block 803 is conducive to achieving a transmission effect, which is conducive to controlling the angles of the four arc-shaped plates 702 through the adjustment disk 806, and is conducive to controlling the anti-loosening function of the nut.

[0034] Moreover, the top of the fixed disk 804 is movably connected to a rotating plate 805 extending to the outside of the outer shell 3. The top of the disk is rotatably connected to an adjusting shaft. The top of the adjusting shaft is fixed to the rotating plate 805. A receiving groove is provided on the outside of the outer shell 3 and extends therethrough. The middle part of the receiving groove is a recessed structure, and the rotating plate 805 is adapted to the recessed part. By adapting the rotating plate 805 to the recessed part, it is beneficial to the stability of the rotating plate 805 when the height is not raised or lowered, and thus beneficial to the stability of the nut as a whole. An adjusting disk 806 is fixed to the back of the rotating plate 805.

[0035] In this embodiment, the operation of the rotating plate 805 and its lower mechanism is realized by the adjustment disk 806, which is conducive to the convenience of nut disassembly. The angle adjustment of the arc plate 702 is achieved by adjusting the height of the movable block 801 and the annular bar 802, which is conducive to the disassembly and installation of the nut and improves convenience.

[0036] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0037] The working principle of the above embodiment is:

[0038] The object to be tightened is passed through the bolt 1, and the washer 2 and the nut body are placed on the object in sequence. The threaded column 6 is rotated downward through the thread line, thereby driving its outer structure to rotate downward. At the same time, the limit block 703 is subjected to an upward rotational force during the descent process, so that the rotating shaft 701 is adjusted in angle, so that the nut body rotates and descends. When the nut body descends to a specified height, the limit rod 4 can be passed through the shell 3 and the bolt 1 for further fixation. When the nut body needs to be taken out, the arc plate 702 and the limit block 703 are subjected to a downward rotational force, so that the arc plate 702 and the limit block 703 lock the bolt 1. At this time, Press the adjustment disk 806 and push it upward, so that the rotating plate 805 enters the upper part of the receiving groove, and the rotating plate 805 is rotated to the left and right sides of the receiving groove through the fixed disk 804, thereby supporting the rotating plate 805, so that the movable block 801 and the annular bar 802 fixed on the fixed disk 804 and thereunder rise, and at the same time, the connecting plate 704 hinged to the movable block 801 is adjusted in angle, and under the rotation action of the rotating shaft 701, the arc plate 702 and the limit block 703 are tilted backward, and then the nut body is removed from the bolt 1 by thread rotation, thereby achieving the purpose of preventing loosening and increasing the stability of the structural installation.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A nut capable of preventing loosening, comprising a bolt (1), characterized in that: A washer (2) and a nut body are movably connected at the axis of the bolt (1); the top of the washer (2) is fixed to the nut body; and a limiting rod (4) penetrating the bolt (1) is movably connected to the nut body. The nut body comprises a threaded column (6) movably connected to the bolt (1), a cylinder (5) is fixed to the outside of the threaded column (6), a housing (3) is fixed to the outside of the cylinder (5), the limiting rod (4) is movably connected to the housing (3), a limiting component (7) is provided on the top of the threaded column (6), and an adjusting component (8) is provided on the cylinder (5); The limiting assembly (7) comprises four rotating shafts (701) movably connected to the top of the threaded column (6), the outer sides of the four rotating shafts (701) are fixed with arc-shaped plates (702), the tops of the four arc-shaped plates (702) are fixed with limiting blocks (703), the four limiting blocks (703) are all fitted with the bolts (1), and the backs of the four arc-shaped plates (702) are fixed with connecting plates (704).

2. A nut capable of preventing loosening according to claim 1, characterized in that: Limiting holes are provided on both the front and rear sides of the bolt (1) and the housing (3), and the limiting rod (4) is movably connected to the bolt (1) and the housing (3) through the four limiting holes.

3. The nut capable of preventing loosening according to claim 1, characterized in that: A threaded hole is provided at the axis of the threaded column (6), and the bolt (1) is threadedly connected to the threaded column (6) through the threaded hole.

4. The nut capable of preventing loosening according to claim 1, characterized in that: Four rotation grooves are provided on the top of the threaded column (6), and the rotation shaft (701) is rotationally connected to the threaded column (6) via the rotation grooves.

5. The nut capable of preventing loosening according to claim 1, characterized in that: The adjustment assembly (8) includes four movable blocks (801) movably connected to the cylinder (5), a fixed block (803) is fixed to the top of the cylinder (5), the inner cavity of the fixed block (803) is movably connected to a fixed disk (804), the bottom of the fixed disk (804) is fixed to an annular strip (802), the tops of the four movable blocks (801) are all fixed to the annular strip (802), the top of the fixed disk (804) is movably connected to a rotating plate (805) extending to the outside of the shell (3), and the back of the rotating plate (805) is fixed to an adjustment disk (806).

6. The nut capable of preventing loosening according to claim 5, characterized in that: A groove is provided at the bottom of the movable block (801), a connecting shaft is rotatably connected between the left and right walls of the groove, and a connecting plate (704) is fixed to the outside of the connecting shaft.

7. The nut capable of preventing loosening according to claim 5, characterized in that: Four adjustment grooves are provided on the inner wall of the cylinder (5), and an annular through groove communicating with the four adjustment grooves is provided in the inner cavity of the cylinder (5). The four movable blocks (801) are respectively located in the four adjustment grooves and are movably connected to the annular through grooves. The inner and outer annular surfaces of the annular strip (802) are both in contact with the annular through grooves.

8. The nut capable of preventing loosening according to claim 7, characterized in that: The fixed disk (804) includes a connecting plate that sequentially passes through the fixed block (803) and the cylinder (5) and extends into the adjustment groove. The bottom of the connecting plate is fixed to the annular strip (802). A circular disk is fixed to the top of the connecting plate. The bottom of the circular disk is in contact with the fixed block (803).

9. The nut capable of preventing loosening according to claim 8, characterized in that: The top of the disc is rotatably connected to an adjustment shaft, and the top of the adjustment shaft is fixed to the rotating plate (805). The outer side of the housing (3) is provided with a receiving groove extending therethrough, and the middle portion of the receiving groove is a recessed structure, and the rotating plate (805) is adapted to the recessed portion.

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