Shock-proof anti-loosening nut assembly
By designing deformation grooves and extrusions in the nut assembly, the screw deformation members are bent into the receiving chamber, which solves the problem of loosening of traditional nuts in vibrating environments and achieves higher tightening stability.
Patent Information
- Application Number
- CN202411984487.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-25
AI Technical Summary
Traditional nuts are prone to reversal in environments with severe vibration or less maintenance, resulting in loose tightening.
A shock-resistant and anti-loosening nut assembly is designed, including a screw and a nut. The rod portion of the screw is opened with a deformation groove in the axial direction, and the screw is divided into a deformation member. A shell and a receiving chamber are arranged on the nut. The inner wall of the top of the shell is provided with an extruder. When the nut is threaded to the screw, the extruder extrudes the deformation member, so that it bends into the receiving chamber and causes deformation to resist the nut.
Through the action of the extruder, the bottom of the screw is expanded, and the threaded teeth abut the threaded teeth of the nut to prevent loosening, and the nut is further fixed through the bending of the deformation member to prevent it from loosening and falling off.
Smart Images
Figure CN119687090A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of nuts, and in particular to a shock-resistant and anti-loosening nut assembly. Background Art
[0002] Nuts are parts that are screwed together with bolts or screws for fastening. According to different materials, they can be divided into several types, such as carbon steel, stainless steel, and nonferrous metals. However, traditional nuts are prone to reverse in severe vibration or less maintained environments, causing loose fastening. Therefore, in view of this, the existing structure and defects are studied and improved, and a shock-resistant and loose-proof nut assembly is provided to achieve a more practical purpose. Summary of the invention
[0003] The invention provides a shock-resistant and anti-loosening nut assembly, which solves the current technical problem that nuts are easy to loosen and fall off.
[0004] In order to solve the above technical problems, the present invention provides a shock-resistant and anti-loosening nut assembly, including a screw and a nut. A deformation groove is opened on the rod portion of the screw along its axial direction, and the deformation groove divides the rod portion of the screw into a plurality of deformation parts of uniform size. A shell is arranged on the nut, and a accommodating chamber is arranged in the shell. An extrusion part is arranged on the top inner wall of the shell. When the nut is threadedly connected to the screw, the extrusion part squeezes the deformation part and forces the deformation part to bend toward the accommodating chamber.
[0005] Preferably, the central axis of the extrusion piece is the same as the central axis of the nut and the central axis of the rod portion of the screw.
[0006] The above technical solution is adopted: the central axis of the extrusion piece, the central axis of the nut, and the central axis of the rod of the screw are the same central axis. Because the nut is spirally connected to the screw, when the nut is spirally rotated, the extrusion piece also rotates. Only when they are on the same central axis can the extrusion piece extrude the screw.
[0007] Preferably, the deformation groove includes a strip groove perpendicular to the axis of the rod portion of the screw and a column groove coincident with the axis of the rod portion of the screw.
[0008] The above technical solution is adopted: the deformation groove includes a strip groove perpendicular to the rod axis of the screw and a column groove coincident with the rod axis of the screw. The strip groove enables the rod of the screw to be divided into several deformation parts of uniform size, and the column groove can perfectly fit the extrusion part to extrude the deformation part.
[0009] Preferably, the extrusion piece is in any one of a cone shape or a cone column shape.
[0010] By adopting the above technical solution, the extrusion piece can be used to extrude the screw by making the extrusion piece be in any one of a cone shape and a cone column shape.
[0011] Preferably, the slot size of the column slot is adapted to the extrusion piece.
[0012] The above technical solution is adopted: the size of the notch of the column groove is adapted to the extrusion piece, so that the extrusion piece can be squeezed into the column groove, and then the deformation piece can be deformed.
[0013] Preferably, the lateral width of the accommodating chamber is greater than the diameter of the rod portion of the screw.
[0014] By adopting the above technical solution, the lateral width of the accommodating chamber is larger than the rod diameter of the screw rod, so that there is enough space for the deformable member to bend toward the accommodating chamber.
[0015] Preferably, the longitudinal height of the accommodating chamber is greater than the height of the extrusion member.
[0016] By adopting the above technical solution, the lateral width of the accommodating chamber is larger than the rod diameter of the screw rod, so that there is enough space for the deformable member to bend toward the accommodating chamber.
[0017] Preferably, a positioning groove is provided on the inner wall at the top of the shell, a positioning piece is fixed on the top of the extrusion piece, and the positioning piece is clamped in the positioning groove.
[0018] The above technical solution is adopted: a positioning groove is opened on the inner wall of the top of the shell, a positioning piece is fixed on the top of the extrusion, and the positioning piece is clamped in the positioning groove, which can facilitate the extrusion to be accurately placed on the central axis of the shell, and then facilitate welding.
[0019] Preferably, the horizontal cross-section of the positioning groove is circular or square.
[0020] By adopting the above technical solution, positioning can be performed by making the horizontal cross section of the positioning groove be either circular or square.
[0021] Preferably, the extrusion piece is welded inside the shell, and the shell is welded to the nut.
[0022] By adopting the above technical solution: the extruded part is welded in the shell, and the shell is welded on the nut, welding can make the connection between the components more firm.
[0023] Compared with the related art, the present invention has the following beneficial effects: 1. Compared with the traditional nut, the present invention is provided with an extrusion piece and a deformation groove. The deformation groove is opened on the rod portion of the screw along its axial direction. The deformation groove divides the rod portion of the screw into a plurality of deformation pieces of uniform size. A shell is provided on the nut. A accommodating chamber is provided in the shell. An extrusion piece is provided on the top inner wall of the shell. When the nut is threadedly connected to the screw, the extrusion piece squeezes the deformation piece and forces the deformation piece to bend toward the accommodating chamber. Since the extrusion piece squeezes the deformation piece to produce deformation, the bottom of the screw is relatively expanded, so that the thread teeth at the bottom of the screw are against the thread teeth on the nut to prevent it from loosening. Secondly, the deformation produced by the deformation piece is bent around along the axial direction of the screw, which further prevents the nut from loosening and falling off from the screw. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the structure of a shock-resistant anti-loosening nut assembly Figure 1 ; Figure 2 A schematic diagram of the structure of a shock-resistant anti-loosening nut assembly Figure 2 ; Figure 3 The cross-sectional structure diagram of a shell in a shock-resistant and anti-loosening nut assembly; Figure 4 A schematic diagram of the structure of a shock-resistant anti-loosening nut assembly Figure 3 ; Figure 5 It is a structural schematic diagram of a positioning groove and a positioning member in a shock-resistant and anti-loosening nut assembly; Figure 6 It is a schematic diagram of the structure of an extruded part in a shock-resistant and anti-loosening nut assembly; Figure 7 It is a schematic diagram of the screw structure in a shock-resistant and anti-loosening nut assembly; Figure 8 The figure is a schematic diagram of the structure of a shell in a shock-resistant and anti-loosening nut assembly.
[0025] Numbers in the figure: 1, screw; 2, deformation member; 3, deformation groove; 31, column groove; 32, strip groove; 4, shell; 41, accommodating chamber; 42, positioning groove; 5, nut; 6, extrusion member; 61, positioning member. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0027] Embodiment 1
[0028] like Figure 1 , Figure 7 As shown, a shock-resistant and anti-loosening nut assembly includes a screw rod 1 and a nut 5. A deformation groove 3 is opened along the axial direction of the rod portion of the screw rod 1. The deformation groove 3 divides the rod portion of the screw rod 1 into a plurality of deformation pieces 2 of uniform size. In this embodiment, the rod portion of the screw rod 1 is divided into four deformation pieces 2 of the same size. Of course, it can also be divided into two, three, five, etc.
[0029] like Figure 3 , Figure 8 As shown, a shell 4 is arranged on the nut 5, a receiving chamber 41 is arranged in the shell 4, and an extrusion member 6 is arranged on the top inner wall of the shell 4, and the extrusion member 6 is used to extrude the deformation member 2 to bend the deformation member 2; like Figure 4 As shown, when the nut 5 is threadedly connected to the screw 1, the extrusion member 6 squeezes the deformation member 2 and forces the deformation member 2 to bend toward the accommodating chamber 41. First, the extrusion member 6 squeezes the deformation member 2 to produce deformation, which makes the bottom of the screw 1 expand more, so that the thread teeth at the bottom of the screw 1 resist the thread teeth on the nut 5. The deformation of the deformation member 2 is bent around along the axial direction of the screw 1, which further prevents the nut 5 from loosening and falling off the screw 1.
[0030] Embodiment 2
[0031] like Figure 1-Figure 3 As shown, the central axis of the extrusion piece 6 is the same as the central axis of the nut 5 and the central axis of the rod of the screw 1. Because the nut 5 is spirally connected to the screw 1, when the nut 5 is spirally rotated, the extrusion piece 6 also rotates. Only when they are on the same central axis can the extrusion piece 6 extrude the screw 1. The deformation groove 3 includes a strip groove 32 perpendicular to the rod axis of the screw 1 and a column groove 31 coincident with the rod axis of the screw 1. The strip groove 32 enables the rod of the screw 1 to be divided into a number of uniformly sized deformation pieces 2. The column groove 31 can perfectly fit the extrusion piece 6 to extrude the deformation piece 2. like Figure 6 As shown, the extrusion piece 6 is in any of a cone shape or a cone column shape, and the extrusion piece 6 can be used to extrude the deformation piece 2 on the screw 1; like Figure 2-Figure 4 As shown, the notch size of the column groove 31 is adapted to the extrusion member 6, so that the extrusion member 6 can be extruded into the column groove 31, and the deformation member 2 can be deformed. By making the lateral width of the accommodating chamber 41 larger than the rod diameter of the screw 1, there is enough space for the deformation member 2 to bend toward the accommodating chamber 41. By making the lateral width of the accommodating chamber 41 larger than the rod diameter of the screw 1, there is enough space for the deformation member 2 to bend toward the accommodating chamber 41. Preferably, the column groove 31 is a conical column groove, the upper inner diameter of the conical column groove is larger than the lower inner diameter, and the lower inner diameter of the conical column groove is smaller than the lower diameter of the extrusion 6, and the lower diameter of the extrusion 6 is smaller than the upper inner diameter of the conical column groove, and the upper diameter of the extrusion 6 is larger than the upper inner diameter of the conical column groove. This structure can reduce the contact wear between the two to extend the service life. And Butter is provided in the accommodating chamber 41 , and the butter plays a self-lubricating role on the screw rod 1 and the nut 5 .
[0032] like Figure 5 As shown, a positioning groove 42 is provided on the inner wall at the top of the shell 4, and a positioning member 61 is fixed on the top of the extrusion member 6. The positioning member 61 is clamped in the positioning groove 42, which can facilitate the extrusion member 6 to be accurately placed on the central axis of the shell 4, and then facilitate welding. The horizontal cross-section of the positioning groove 42 is either circular or square, and can be positioned; like Figure 8 As shown, the extrusion part 6 is welded in the shell 4, and the shell 4 is welded on the nut 5. Welding makes the connection between the components more secure. Of course, the shell 4 can also be diverse. The preferred shell 4 in this embodiment is hexagonal in appearance, which is convenient for tightening with a wrench or socket.
[0033] Working principle: Figure 1-8 As shown, when the nut 5 is threadedly connected to the screw 1, the extrusion member 6 squeezes the deformation member 2 and forces the deformation member 2 to bend toward the accommodating chamber 41. Since the extrusion member 6 squeezes the deformation member 2 and produces deformation, the bottom of the screw 1 is relatively expanded, so that the thread teeth at the bottom of the screw 1 resist the thread teeth on the nut 5 to prevent it from loosening. Secondly, the deformation produced by the deformation member 2 is bent around along the axial direction of the screw 1, which further prevents the nut 5 from loosening and falling off from the screw 1.
[0034] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shock-resistant and anti-loosening nut assembly, comprising a screw rod (1) and a nut (5), characterized in that: A deformation groove (3) is provided on the shank of the screw (1) along its axial direction, and the deformation groove (3) divides the shank of the screw (1) into a plurality of deformation pieces (2) of uniform size. A shell (4) is provided on the nut (5), and a receiving chamber (41) is provided inside the shell (4). An extrusion piece (6) is provided on the top inner wall of the shell (4). When the nut (5) is threadedly connected to the screw (1), the extrusion piece (6) extrudes the deformation piece (2) and forces the deformation piece (2) to bend toward the receiving chamber (41).
2. A shockproof anti-loosening nut assembly according to claim 1, characterized in that: The central axis of the extrusion piece (6), the central axis of the nut (5), and the central axis of the rod of the screw rod (1) are the same central axis.
3. The anti-vibration and anti-loosening nut assembly according to claim 1, characterized in that: The deformation groove (3) comprises a strip groove (32) perpendicular to the axis of the rod portion of the screw rod (1) and a column groove (31) coincident with the axis of the rod portion of the screw rod (1).
4. The anti-vibration and anti-loosening nut assembly according to claim 1, characterized in that: The extrusion piece (6) is in any one of a cone shape and a cone column shape.
5. The anti-vibration and anti-loosening nut assembly according to claim 3, characterized in that: The size of the notch of the column groove (31) is adapted to the extrusion piece (6).
6. The anti-vibration anti-loosening nut assembly according to claim 1, characterized in that: The lateral width of the accommodating chamber (41) is greater than the diameter of the rod portion of the screw rod (1).
7. The anti-vibration and anti-loosening nut assembly according to claim 1, characterized in that: The longitudinal height of the accommodating chamber (41) is greater than the height of the extrusion member (6).
8. The anti-vibration and anti-loosening nut assembly according to claim 1, characterized in that: A positioning groove (42) is provided on the inner wall at the top of the shell (4), a positioning piece (61) is fixed on the top of the extrusion piece (6), and the positioning piece (61) is clamped in the positioning groove (42).
9. The anti-vibration and anti-loosening nut assembly according to claim 8, characterized in that: The horizontal cross section of the positioning groove (42) is either circular or square.
10. The anti-vibration and anti-loosening nut assembly according to claim 1, characterized in that: The extruded part (6) is welded inside the shell (4), and the shell (4) is welded to the nut (5).