A nut lift capable of making way

Abstract

The present invention relates to the technical field of mechanical parts, and specifically to a nut elevator that can make way for a position, comprising a screw and a support rod fixedly connected to the outer wall of the screw, the outer wall of the screw being provided with an external meshing layer, the outer wall of the screw being slidably provided with a nut meshingly connected to the external meshing layer, the nut comprising a nut body and a nut inner cavity penetrating the upper and lower ends of the nut body, the nut body being penetrated by a through groove having the same angle as the inclination of the external meshing layer of the screw, the through groove being a spiral groove structure extending from top to bottom along the nut body, a plurality of stabilizing devices being provided outside the screw, the outer wall of the stabilizing device being meshingly connected to the outer wall of the nut body, the upper and lower ends of the stabilizing device being movably engaged with a limit box, the limit box being provided with a rotating shaft, the stabilizing device being fixedly sleeved on the rotating shaft, the upper and lower surfaces of the limit box being penetrated by slots through which the screw and the support rod can pass.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parts, in particular to a nut lifter capable of yielding position. Background Art

[0002] A nut is a cap that is screwed together with a bolt or a screw for tightening. The nut and the screw can engage with each other to form a nut-screw fixing structure. The inner wall of the nut is provided with an internal thread layer, and the outer meshing layer of the outer wall of the screw or bolt engages with the internal thread layer of the inner wall of the nut to screw the nut in and fix it on the outer wall of the screw or bolt. The screw-in depth of the nut can be adjusted by rotation. After being screwed in, the nut has a good fixing effect, is easy to screw in and out, and has strong flexibility in use.

[0003] Although the above patent can solve the corresponding technical problems, there are still certain defects: in order to keep the existing screw in an upright state, a support rod is often set in the middle of the existing screw to keep it upright, and the existing nut cannot continue to rotate after being screwed into the screw when passing the connection position between the support rod and the screw. If it is necessary to pass the connection position between the support rod and the screw, it is necessary to re-screw the nut from the other end of the screw or remove the support rod. The operation is very inconvenient and the nut is easily squeezed by the outer wall of the screw and subjected to relative lateral force after being screwed into the screw. It is easy to cause the nut to be deformed by the lateral force, which affects the bite effect between the nut and the screw and easily causes the thread slipping phenomenon. After being screwed into the screw, the nut is easily affected by the longitudinal resistance brought by the screw when it is lifted and lowered, and then has a tendency to longitudinal deformation. After long-term use, it is easy to elongate, causing the nut to deform and slip, making the connection unstable. Summary of the invention

[0004] The object of the present invention is to provide a nut lifter which has good nut stability and fewer operation steps for passing through a support rod in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a nut elevator that can give way, including a screw and a support rod fixedly connected to the outer wall of the screw, the outer wall of the screw is provided with an external meshing layer, the outer wall of the screw is slidably provided with a nut meshingly connected to the external meshing layer, the nut includes a nut body and a nut inner cavity penetrating the upper and lower ends of the nut body, the nut body is penetrated with a through groove with the same angle as the inclination of the external meshing layer of the screw, the through groove is a spiral groove structure extending from top to bottom along the nut body, a plurality of stabilizing devices are provided outside the screw, the outer wall of the stabilizing device is meshingly connected with the outer wall of the nut body, the upper and lower ends of the stabilizing device are movably engaged with a limit box, the limit box is provided with a rotating shaft, the stabilizing device is fixedly sleeved on the rotating shaft, and the upper and lower surfaces of the limit box are penetrated with slots that allow the screw and the support rod to pass through.

[0006] A further improvement is that the stabilizing device includes a plurality of stabilizing rods disposed outside the screw rod and a first biting layer disposed on the outer wall of the stabilizing rods, and the stabilizing device also includes a second biting layer disposed on the outer wall of the nut body and meshing with the first biting layer.

[0007] A further improvement is that: the first biting layer is an external thread structure, and the second biting layer is an external thread structure that cooperates with and meshes with the first biting layer.

[0008] A further improvement is that the stabilizing device further comprises a plurality of longitudinal stabilizing ring pieces arranged on the outer wall of the stabilizing rod, and the stabilizing device further comprises a plurality of longitudinal stabilizing grooves integrally formed on the outer wall of the nut body and capable of cooperating with the longitudinal stabilizing ring pieces.

[0009] A further improvement is that a rotating motor is provided at the end of the rotating shaft.

[0010] A further improvement is that the edge of the limit box is also provided with a side protection plate.

[0011] A further improvement is that an upper flat sheet is provided on the top surface of the nut body.

[0012] A further improvement is that a lower flat sheet is provided on the bottom surface of the nut body.

[0013] After adopting the above technical solution, the beneficial effects of the present invention are:

[0014] The outer wall of the nut body of the nut elevator of the present invention is provided with a penetrating through groove, and the inclination angle of the through groove and the outer meshing layer of the screw is the same, so that during the rotation process, if the nut reaches the support rod position on the screw, the support rod can enter the through groove. As the nut rotates, the support rod moves relative to the nut body through the through groove, and the nut body passes through the support rod through the through groove, so that the passability of the nut is greatly improved. There is no need to remove the nut again and screw it in from the other end of the screw, which is convenient to operate.

[0015] When the nut body rotates, the present invention limits the deformation caused by the lateral force to which the nut is subjected during the rotation process by means of a stabilizing rod which cooperates with a first biting layer arranged thereon to bit the second biting layer outside the nut body, making it difficult for the nut to produce lateral tensile deformation, thereby maintaining its diameter and preventing the diameter from increasing after multiple rotations and affecting the tightness between the nut and the screw, thereby ensuring the biting effect between the nut and the screw and avoiding loosening and misalignment.

[0016] When the nut body rotates, the stabilizing groove on the nut body and the longitudinal stabilizing ring piece on the stabilizing device can cooperate at the same time. The longitudinal stabilizing ring piece is inserted into the stabilizing groove of the nut body, so that the nut body will not be stretched along the longitudinal direction when it rotates and moves, and its longitudinal length is maintained during use, preventing stretching from causing it to be difficult to bite the screw and causing jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0018] Figure 1 is a structural schematic diagram of a front view cross section of the fixing structure of the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the fixed structure of the present invention after removing the limit box and the support rod;

[0020] Figure 3 It is a schematic diagram of the structure of the fixed structure of the present invention when the limit box and the support rod are removed from the top;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the nut of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a nut of the present invention viewed from the front;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the stabilizing device of the present invention;

[0024] Figure 7 It is a schematic structural diagram of the front view of the stabilizing device of the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0026] See also Figure 1-7As shown, the technical solution adopted in this specific embodiment is: a nut elevator that can give way, including a screw 100 and a support rod 200 fixedly connected to the outer wall of the screw 100, the outer wall of the screw 100 is provided with an outer meshing layer 101, the outer wall of the screw 100 is slidably provided with a nut meshingly connected to the outer meshing layer 101, the nut includes a nut body 1 and a nut inner cavity 3 penetrating the upper and lower ends of the nut body 1, the nut body 1 is penetrated by a through groove 2 with the same angle as the outer meshing layer 101 of the screw 100, the through groove 2 is a spiral groove structure extending from top to bottom along the nut body 1, the screw 100 is provided with a plurality of stabilizing devices 300, and the stabilizing devices include a plurality of stabilizing devices 300 provided outside the screw 100 The stabilizing device further comprises a stabilizing rod 20 and a first bite layer 21 provided on the outer wall of the stabilizing rod 20, the stabilizing device also comprises a second bite layer 11 provided on the outer wall of the nut body 1 and meshing with the first bite layer 21, the outer wall of the stabilizing device 300 is meshingly connected with the outer wall of the nut body 1, the upper and lower ends of the stabilizing device 300 are movably engaged with a limit box 400, a rotating shaft 301 is provided in the limit box 400, the stabilizing device 300 is fixedly sleeved on the rotating shaft 301, the upper and lower surfaces of the limit box 400 are penetrated with slots through which the screw 100 and the support rod 200 pass, after the nut body 1 is screwed into the screw 100, it moves with the outer bite layer 101, and when passing through the support rod 200, the support rod 200 passes through the through slot 2, and the stabilizing device The device 300 limits the deformation of the nut body 1 during the movement, and cooperates with the limit box 400 to make the stabilizing device 300 move up and down with the nut body 1. When in use, the nut body 1 is screwed onto the screw 100, so that the nut inner cavity 3 of the nut body 1 engages with the screw 100, and the nut body 1 can be moved along the outer meshing layer 101 of the screw 100 by rotation. When the nut body 1 moves to the position of the support rod 200 on the screw 100, the support rod 200 can be inserted into the through groove 2 provided on the nut body 1. Since the inclination angle of the outer meshing layer 101 of the screw 100 matched with the nut through the groove 2 is the same, as the nut body 1 rotates, the support rod 200 on the screw 100 can engage with the nut through the through groove 2. The main body 1 can move relatively without getting stuck, and the nut main body 1 can pass through the support rod 200 through the groove 2, thereby greatly improving the passability of the nut. When moving the nut, there is no need to remove the nut body again and screw it in from the other end of the screw rod 100, which is easy to operate. During the rotation of the nut, when the rotation speed is high, or when the nut main body 1 is placed horizontally, the rotation of the nut main body 1 will be affected by the lateral force, thereby generating a tendency to expand outward and increase the diameter. At this time, the stabilizing rod 20 can cooperate with the first bite layer 21 provided thereon to bite the second bite layer 11 outside the nut main body 1 to limit the deformation caused by the lateral force during the rotation of the nut, making it difficult for it to produce lateral tensile deformation and maintain its diameter.To avoid the diameter becoming larger after multiple rotations and affecting the tightness between the nut and the screw 100, ensure the bite effect between the nut and the screw 100, and avoid loosening and dislocation. At the same time, the upper and lower ends of the stabilizing device 300 are equipped with the limit boxes 400 and the slots for the screw 100 to pass through, so that when the nut body 1 moves, the upper and lower ends will squeeze the limit boxes 400, so that the stabilizing device 300 connected through the rotating shaft 301 will move synchronously, so that the stabilizing device 300 can always be located outside the nut body 1 and bite with it, so as to maintain the stability effect;

[0027] The first bite layer 21 is an external thread structure, and the second bite layer 11 is an external thread structure that cooperates with and meshes with the first bite layer 21, which is beneficial for limiting the deformation of the nut body 1 through the mutual meshing of the external thread structures and making the rotation smoother;

[0028] The stabilizing device 300 further includes a plurality of longitudinal stabilizing ring pieces 22 arranged on the outer wall of the stabilizing rod 20, and the stabilizing device 300 further includes a plurality of longitudinal stabilizing grooves 12 integrally formed on the outer wall of the nut body 1 and capable of cooperating with the longitudinal stabilizing ring pieces 22. When the first biting layer 21 and the second biting layer 11 are bitingly connected, the stabilizing groove 12 on the nut body 1 can also be matched with the longitudinal stabilizing ring piece 22 on the stabilizing device 300. The longitudinal stabilizing ring piece 22 is inserted into the stabilizing groove 12 of the nut body 1, so that the nut body 1 will not be stretched in the longitudinal direction when rotating and moving, and thus maintain its longitudinal length during use, and prevent the nut body 1 from being stuck due to the difficulty of biting the screw rod due to stretching;

[0029] The end of the rotating shaft 301 is provided with a rotating motor 304, which is conducive to driving the rotating shaft 301 to rotate through the rotating motor 304, so that the rotating shaft 301 drives the stabilizing rod 20 to rotate, and then the nut body 1 is rotated through the meshing of the first bite layer 21 and the second bite layer 11, so that there is no need to manually twist the nut body 1, and the degree of automation is higher;

[0030] The edge of the limit box 400 is also provided with a side protection plate 401, which is beneficial to improve the protection effect of the stabilizing device 300 and the nut body 1;

[0031] The top surface of the nut body 1 is provided with an upper flattening sheet 6, which is conducive to making the upper surface of the nut body 1 more flat and preventing bulges from causing difficulty in installation or removal;

[0032] The bottom surface of the nut body 1 is provided with a lower flattening sheet 5, which is conducive to making the lower surface of the nut body 1 more flat and preventing bulges from causing difficulty in installation or removal.

[0033] The working principle of the present invention is as follows: when the present invention is used, the nut body 1 is screwed into the screw rod 100, so that the nut inner cavity 3 of the nut body 1 engages with the screw rod 100, and the nut body 1 can be moved along the outer meshing layer 101 of the screw rod 100 by rotation. When the nut body 1 moves to the position of the support rod 200 on the screw rod 100, the support rod 200 can be inserted into the through groove 2 provided on the nut body 1. Since the through groove 2 and the outer meshing layer 101 of the screw rod 100 matched with the nut have the same inclination angle, as the nut body 1 rotates, the support rod 200 on the screw 100 can move relative to the nut body 1 through the through groove 2 without getting stuck. The nut body 1 passes through the support rod 200 through the through groove 2, thereby greatly improving the passability of the nut. When moving the nut, there is no need to remove the nut body again and screw it in from the other end of the screw rod 100, which is easy to operate. During the rotation of the nut, when the rotation speed is high, or the nut body 1 When placed horizontally, the rotation of the nut body 1 will be affected by the lateral force, and then it will tend to expand outward and increase its diameter. At this time, the stabilizing rod 20 can cooperate with the first bite layer 21 arranged thereon to bite the second bite layer 11 outside the nut body 1 to limit the deformation caused by the lateral force during the rotation of the nut, making it difficult for it to produce lateral tensile deformation, maintain its diameter, avoid the diameter becoming larger after rotating multiple times and affecting the tightness between the nut and the screw 100, ensure the bite effect between the nut and the screw 100, and avoid loosening and misalignment. At the same time, the limit box 400 provided at the upper and lower ends of the stabilizing device 300 and the slot for the screw 100 to pass through can make the nut body 1 squeeze the limit box 400 at the upper and lower ends when it moves, so that it drives the stabilizing device 300 connected through the rotating shaft 301 to move synchronously, so that the stabilizing device 300 can always be located outside the nut body 1 and bite with it to maintain a stable effect.

[0034] The invention is intended to protect the structure of the product. The model of each component is not the content of the invention, and it is also a known technology. Any component on the market that can achieve the above functions of the invention can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in the invention. The contribution of the invention lies in the scientific combination of the components.

[0035] The above shows and describes the basic principles and main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents. Anything not described in detail in the present invention is a well-known technology of those skilled in the art.

Claims

1. A nut lifter capable of yielding position, characterized in that: The invention comprises a screw rod (100) and a support rod (200) fixedly connected to the outer wall of the screw rod (100), wherein the outer wall of the screw rod (100) is provided with an outer meshing layer (101), and the outer wall of the screw rod (100) is provided with a nut which is slidably connected to the outer meshing layer (101), and the nut comprises a nut body (1) and a nut inner cavity (3) penetrating the upper and lower ends of the nut body (1), and the nut body (1) is penetrated by a through groove (2) having the same inclination angle as the outer meshing layer (101) of the screw rod (100), and the through groove (2) is provided along the screw rod. The mother body (1) has a spiral groove structure extending from top to bottom, the screw rod (100) is provided with a plurality of stabilizing devices (300) outside, the outer wall of the stabilizing device (300) is meshingly connected with the outer wall of the nut body (1), the upper and lower ends of the stabilizing device (300) are movably engaged with a limit box (400), a rotating shaft (301) is provided inside the limit box (400), the stabilizing device (300) is fixedly sleeved on the rotating shaft (301), and the upper and lower surfaces of the limit box (400) are penetrated with slots for allowing the screw rod (100) and the support rod (200) to pass through.

2. A nut lifter capable of yielding position according to claim 1, characterized in that: The stabilizing device comprises a plurality of stabilizing rods (20) disposed outside the screw rod (100) and a first bite layer (21) disposed on the outer wall of the stabilizing rod (20), and the stabilizing device further comprises a second bite layer (11) disposed on the outer wall of the nut body (1) and meshing with the first bite layer (21).

3. A nut lifter capable of yielding position according to claim 2, characterized in that: The first biting layer (21) is an external thread structure, and the second biting layer (11) is an external thread structure that cooperates with and is meshedly connected to the first biting layer (21).

4. A nut lifter capable of yielding position according to claim 2, characterized in that: The stabilizing device (300) further comprises a plurality of longitudinal stabilizing ring sheets (22) arranged on the outer wall of the stabilizing rod (20), and the stabilizing device (300) further comprises a plurality of longitudinal stabilizing grooves (12) integrally formed on the outer wall of the nut body (1) and capable of cooperating with the longitudinal stabilizing ring sheets (22).

5. A nut lifter capable of yielding position according to claim 1, characterized in that: A rotating motor (304) is provided at the end of the rotating shaft (301).

6. A nut lifter capable of yielding position according to claim 1, characterized in that: The edge of the limit box (400) is also provided with a side protection plate (401).

7. A nut lifter capable of yielding position according to claim 1, characterized in that: An upper flat sheet (6) is provided on the top surface of the nut body (1).

8. A nut lifter capable of yielding position according to claim 1, characterized in that: The bottom surface of the nut body (1) is provided with a lower flat plate (5).

Images