Anti-loosening locking nut

Abstract

The utility model provides an anti-loose locking nut, which belongs to the technical field of fasteners, and aims to solve the problems that the conventional axial anti-loose locking nut needs to perform fine knob adjustment on a plurality of extrusion parts repeatedly in the fastening process, the operation is complicated and time-consuming, and the final torsion angle is easy to deviate. The three extrusion pieces are connected to the interior of the coating shell in a dispersed and threaded mode; the operation cover is arranged in front of the coating shell; the twisting shaft is rotationally connected to the interior of the operation cover; the operation assembly is arranged in the operation cover; and the locking assembly is arranged in the nut main body. The three keying pieces can be driven to rotate at completely consistent angles by rotating the twisting shaft, so that the amplitude of pressure applied to the three wedge blocks is consistent, the amplitude balance of the three wedge blocks in the moving process is realized, and the locking capability and the stability of a bolt or a screw rod are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of fasteners, and more specifically, particularly relates to an anti-loosening locking nut. Background Art

[0002] Anti-loosening locking nut is a fastener widely used in mechanical engineering. Its main function is to enhance the stability and anti-loosening performance of threaded connections through specific structural design. The axial anti-loosening locking nut is a nut that generates locking force in the axial direction through a specific mechanism. It is used to prevent the threaded connection from loosening under vibration or impact conditions. As an efficient and reliable fastener, the axial locking nut plays an important role in mechanical engineering. The existing axial anti-loosening locking nut is generally composed of a covering shell, a nut body, an extruded part threadedly connected to the inside of the covering shell, and a wedge slidably connected to the inside of the nut body.

[0003] Existing application number: CN201620783622.0, the utility model discloses a novel ultra-precision locking nut, including a nut body, a copper column and a screw; the nut body is set as a short cylinder with a circular cross section; the outer side of the nut body is provided with a plurality of rectangular notches, which are evenly distributed on the outer side in an annular shape; the outer side of the nut body is also provided with a plurality of through holes perpendicular to the outer side, which are evenly distributed on the outer side in an annular shape; the upper end face of the nut body is provided with a threaded hole perpendicular to the upper end face; the threaded hole is perpendicular to the through hole and connected to the through hole; the copper column is set as a structure in which a cylinder and a cone are integrally formed; the copper column is set inside the through hole, and the top of the cone points to the outer side of the nut body; the screw is set as a structure in which a screw rod and a truncated cone are integrally formed; the screw is set in the threaded hole; the truncated cone end of the screw is close to the conical end of the copper column. The utility model achieves the effect of locking and preventing loosening by screwing the screw inward to squeeze the copper column toward the inner diameter direction of the nut.

[0004] Based on the above, the assembly of axial locking nuts is a relatively precise process, and the key is to ensure that tilting and deformation caused by uneven torque are avoided during the tightening process. The current operation process involves multiple reciprocating knob adjustments of multiple extrusions. This step is not only complicated and time-consuming, but also difficult to achieve absolute angle accuracy in each knob operation, resulting in deviations in the final torsion angles of each extrusion, which in turn leads to inconsistent inward movement distances of the wedge block, which directly weakens the locking efficiency and stability of the screw or bolt. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an anti-loosening locking nut to solve the problem that the existing axial anti-loosening locking nut is a relatively precise process during assembly, and the key is to ensure that the tilting and deformation caused by uneven torque are avoided during the tightening process. The current operation process involves multiple reciprocating fine knob adjustments of multiple extrusions. This step is not only complicated and time-consuming, but also difficult to achieve absolute angle accuracy in each knob operation, resulting in deviations in the final torsion angles of each extrusion, which in turn leads to inconsistent inward movement distances of the wedge block, which directly weakens the locking efficiency and stability of the screw or bolt.

[0006] The purpose and effect of the anti-loosening locking nut of the utility model are achieved by the following specific technical means:

[0007] An anti-loosening locking nut includes a covering shell;

[0008] A nut body, wherein the nut body is fixedly connected to the inside of the covering shell;

[0009] An extrusion piece, wherein three extrusion pieces are provided, and the three extrusion pieces are discretely threadedly connected inside the covering shell;

[0010] An operating cover, the operating cover is arranged in front of the covering shell;

[0011] A torsion shaft, the torsion shaft is rotatably connected inside the operating cover;

[0012] An operating component, wherein the operating component is arranged inside the operating cover;

[0013] A locking assembly is arranged inside the nut body.

[0014] Furthermore, the operating components include:

[0015] A clamping member, wherein a plurality of the clamping members are provided, and the plurality of the clamping members are dispersedly fixedly connected to the outside of the operating cover;

[0016] A hexagonal hole is provided inside the torsion shaft.

[0017] Furthermore, the operating component also includes:

[0018] A first transmission gear, wherein the first transmission gear is coaxially fixedly connected to the lower side of the torsion shaft;

[0019] A transmission gear ring is rotatably connected to the bottom of the operating cover and meshes with the first transmission gear.

[0020] Furthermore, the operating component also includes:

[0021] A first transmission shaft, wherein two first transmission shafts are provided, and the two first transmission shafts are rotatably connected inside the operating cover in a dispersed manner;

[0022] The second transmission gear is provided with two pieces, the two pieces of the second transmission gear are respectively coaxially fixedly connected under the two pieces of the first transmission shaft, and the two pieces of the second transmission gear are respectively meshed with the transmission gear ring.

[0023] Furthermore, the operating component also includes:

[0024] The typing parts are provided in three pieces, and the three typing parts are respectively coaxially fixedly connected under one first transmission gear and two second transmission gears.

[0025] Furthermore, the locking assembly includes:

[0026] A socket, the socket is a hexagonal structure, three of the sockets are provided, and the three sockets are provided inside three extruded parts respectively;

[0027] The wedge block has an inner side with an arc surface structure. The wedge block is provided with three pieces, and the three wedge blocks are dispersedly slidably connected inside the nut body.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] First, use a hexagonal wrench to insert the hexagonal hole and rotate it to drive the torsion shaft to rotate. The rotation of the torsion shaft will drive the first transmission gear and the two second transmission gears to rotate at the same time, forming a transmission system, thereby triggering the three key parts to rotate at the same time, ensuring that the three key parts rotate at completely consistent angles.

[0030] Secondly, after the three typing parts are inserted into the three sockets respectively, the rotation of the three typing parts will drive the three extrusion parts to rotate at the same time, thereby driving the extrusion parts to move backward through the threaded transmission mechanism composed of the extrusion parts and the covering shell, and squeezing the three wedge blocks respectively, so that the three wedge blocks move inward at the same time, and the movement amplitude of the three wedge blocks is the same, which ensures the locking ability and stability of the bolts or screws.

[0031] The utility model can drive the three typing parts to rotate at a completely consistent angle by rotating the torsion shaft, thereby driving the three extrusion parts to move backward at the same time, ensuring that the pressure amplitudes applied to the three wedge blocks are completely consistent, thereby achieving amplitude balance of the three wedge blocks during the movement process, and ensuring the locking ability and stability of the bolts or screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2It is a schematic diagram of the covering shell structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the structure of the operating cover of the utility model.

[0035] Figure 4 It is a schematic diagram of the transmission gear ring structure of the utility model.

[0036] Figure 5 It is a schematic diagram of the main structure of the nut of the utility model.

[0037] Figure 6 It is a schematic diagram of the wedge structure of the utility model.

[0038] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0039] 1. Covering shell; 2. Nut body; 3. Extrusion piece; 301. Socket; 4. Operation cover; 401. Clamping piece; 5. Torsion shaft; 501. Hexagonal hole; 6. First transmission gear; 7. Transmission gear ring; 8. First transmission shaft; 9. Second transmission gear; 10. Keying piece; 11. Wedge block. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0041] Embodiment 1:

[0042] As attached Figure 1 To Attachment Figure 6 As shown:

[0043] The utility model provides an anti-loosening locking nut, comprising a covering shell 1;

[0044] A nut body 2, wherein the nut body 2 is fixedly connected to the inside of the covering shell 1;

[0045] An extrusion piece 3, wherein three extrusion pieces 3 are provided, and the three extrusion pieces 3 are discretely threadedly connected inside the covering shell 1;

[0046] An operating cover 4, which is arranged in front of the covering shell 1;

[0047] A twisting shaft 5, the twisting shaft 5 is rotatably connected to the inside of the operating cover 4;

[0048] An operating component is arranged inside the operating cover 4 .

[0049] The operating components include:

[0050] A clamping member 401, wherein a plurality of clamping members 401 are provided, and the plurality of clamping members 401 are dispersedly fixedly connected to the outside of the operating cover 4;

[0051] The hexagonal hole 501 is provided inside the torsion shaft 5 , and its function is to clamp any one of the clamping members 401 with a tool such as pliers, and then insert a hexagonal wrench into the hexagonal hole 501 and rotate it, so as to drive the torsion shaft 5 to rotate.

[0052] The operation components also include:

[0053] A first transmission gear 6, which is coaxially fixedly connected to the lower side of the torsion shaft 5;

[0054] The transmission ring gear 7 is rotatably connected under the operating cover 4, and the transmission ring gear 7 is meshed with the first transmission gear 6. The effect brought about is that the rotation of the torsion shaft 5 will drive the first transmission gear 6 to rotate, and the rotation of the first transmission gear 6 will drive the transmission ring gear 7 to rotate through the transmission mechanism formed by the meshing with the transmission ring gear 7.

[0055] The operation components also include:

[0056] A first transmission shaft 8, wherein two first transmission shafts 8 are provided, and the two first transmission shafts 8 are rotatably connected to the inside of the operating cover 4 in a dispersed manner;

[0057] The second transmission gear 9, the second transmission gear 9 is provided with two pieces, the two second transmission gears 9 are respectively coaxially fixedly connected under the two first transmission shafts 8, and the two second transmission gears 9 are respectively meshed with the transmission ring gear 7, so that the rotation of the transmission ring gear 7 will drive the two first transmission shafts 8 and the two second transmission gears 9 to rotate through the transmission mechanism formed by the two second transmission gears 9 respectively meshing with the two second transmission gears 9.

[0058] The operation components also include:

[0059] The typing parts 10 are provided with three pieces, and the three typing parts 10 are respectively coaxially fixedly connected under one first transmission gear 6 and two second transmission gears 9, so that the rotation of the first transmission gear 6 and the two second transmission gears 9 will drive the three typing parts 10 to rotate simultaneously.

[0060] The specific usage and function of this embodiment are as follows:

[0061] First, use pliers or other tools to clamp any clamping part 401, then use a hexagonal wrench to insert the hexagonal hole 501 and rotate it, which can drive the torsion shaft 5 to rotate. The rotation of the torsion shaft 5 will drive the first transmission gear 6 to rotate. The rotation of the first transmission gear 6 will drive the transmission ring gear 7 to rotate through the transmission mechanism formed by meshing with the transmission ring gear 7. The rotation of the transmission ring gear 7 will drive the two first transmission shafts 8 and the two second transmission gears 9 to rotate through the transmission mechanism formed by meshing with the two second transmission gears 9 respectively. The rotation of the first transmission gear 6 and the two second transmission gears 9 will drive the three typing parts 10 to rotate at the same time, so that the three typing parts 10 can rotate at the same angle.

[0062] Embodiment 2:

[0063] Based on the first embodiment, as shown in the attached Figure 1 To Attachment Figure 6 As shown, a locking assembly is also included, and the locking assembly is arranged inside the nut body 2.

[0064] The locking assembly includes:

[0065] The plug hole 301 is a hexagonal structure, and three plug holes 301 are provided. The three plug holes 301 are respectively provided inside the three extruded parts 3;

[0066] The wedge block 11 has an arc surface structure on its inner side. The wedge blocks 11 are provided with three pieces, and the three wedge blocks 11 are dispersedly slidably connected inside the nut body 2 .

[0067] The specific usage and function of this embodiment are as follows:

[0068] The three-piece typing components 10 are respectively inserted into the three sockets 301. The rotation of the three-piece typing components 10 will drive the three extrusion components 3 to rotate at the same time, thereby driving the three extrusion components 3 to move backward through the threaded transmission mechanism respectively formed by the three extrusion components 3 and the covering shell 1. The backward movement of the three extrusion components 3 will cause the three wedge blocks 11 to be squeezed respectively, so that the three wedge blocks 11 move inward at the same time, thereby locking the bolts or screws to prevent loosening; after use, the three-piece typing components 10 can be pulled out from the three sockets 301 for reuse, saving production costs.

[0069] In this article, there are a few points to note:

[0070] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0071] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0072] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A locking nut, comprising a covering shell (1), a nut body (2), an extrusion piece (3), an operating cover (4), a torsion shaft (5), an operating assembly and a locking assembly; characterized in that: The nut body (2) is fixedly connected to the inside of the covering shell (1); three extrusion pieces (3) are provided, and the three extrusion pieces (3) are discretely threadedly connected to the inside of the covering shell (1); the operating cover (4) is provided in front of the covering shell (1); the torsion shaft (5) is rotatably connected to the inside of the operating cover (4); the operating assembly is provided inside the operating cover (4); and the locking assembly is provided inside the nut body (2).

2. The anti-loosening locking nut according to claim 1, characterized in that: The operating assembly comprises: a clamping piece (401) and a hexagonal hole (501); a plurality of the clamping pieces (401) are provided, and the plurality of the clamping pieces (401) are dispersedly fixedly connected to the outside of the operating cover (4); and the hexagonal hole (501) is provided inside the torsion shaft (5).

3. The anti-loosening locking nut according to claim 2, characterized in that: The operating assembly further comprises: a first transmission gear (6) and a transmission gear ring (7); the first transmission gear (6) is coaxially fixedly connected below the torsion shaft (5); the transmission gear ring (7) is rotatably connected below the operating cover (4), and the transmission gear ring (7) is meshed with the first transmission gear (6).

4. The anti-loosening locking nut according to claim 3, characterized in that: The operating assembly further comprises: a first transmission shaft (8) and a second transmission gear (9); the first transmission shaft (8) is provided in two pieces, and the two first transmission shafts (8) are rotatably connected inside the operating cover (4); the second transmission gear (9) is provided in two pieces, and the two second transmission gears (9) are coaxially fixedly connected under the two first transmission shafts (8), and the two second transmission gears (9) are respectively meshed with the transmission gear ring (7).

5. The anti-loosening locking nut according to claim 4, characterized in that: The operating assembly further comprises: a keying member (10); three keying members (10) are provided, and the three keying members (10) are respectively coaxially fixedly connected below a first transmission gear (6) and two second transmission gears (9).

6. The anti-loosening locking nut according to claim 1, characterized in that: The locking assembly comprises: a socket (301) and a wedge block (11); the socket (301) is a hexagonal structure, three of the sockets (301) are provided, and the three sockets (301) are respectively provided inside three extruded parts (3); the inner side of the wedge block (11) is a curved surface structure, three of the wedge blocks (11) are provided, and the three wedge blocks (11) are dispersedly slidably connected inside the nut body (2).

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