CN214670307U

CN214670307U - Rotary adjusting structure

Info

Publication number: CN214670307U
Application number: CN202120768838.0U
Authority: CN
Inventors: 刘振; 邓若夫; 傅新
Original assignee: Shenzhen Trustfire Technology Co ltd
Current assignee: Shenzhen Trustfire Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-09
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a rotary adjusting structure, which comprises a structure main body, the structure main body comprises an upper cover, a nut, a rotary table, a lower cover and a screw, a C-shaped lug and a nut groove are formed on the inner end surface of the upper cover, the inner wall of the C-shaped lug is provided with a group of first right-angle edges which are symmetrically distributed mutually, the nut groove is arranged at the central position of the C-shaped lug, a C-shaped groove is formed between the C-shaped lug and the nut groove, one side of the nut groove is provided with a notch groove, the width of the notch groove is larger than that of the nut, the height of the notch groove is larger than that of the nut, the middle part of the rotary table is provided with an inner ring, the inner ring is provided with a group of second right-angle edges which are symmetrically distributed mutually, the inner wall of the inner ring is contacted with the outer wall of the C-shaped lug, the inner end surface of the lower cover is provided with arc-shaped steps which are matched with the nut groove, the inner edge of the lower cover is provided with a circle of tooth-shaped groove, the back surface of the arc-shaped steps is provided with an inner groove, the diameter of the inner groove corresponds to the head of the screw.

Description

Rotary adjusting structure

Technical Field

The utility model relates to a rotation regulation technical field specifically is a rotation regulation structure.

Background

Most of the rotation adjustment in the market at present is a matching mode that a metal chuck is matched with a steel ball and a spring keeps thrust, or plastic buckle position matching, upper salient points and lower salient points, and the matching mode of self deformation is utilized, but the two modes have the defect that the matching clearance exists in the metal chuck, so that a spring is required to keep larger thrust to compensate, but will inevitably cause the steel balls to come out of the matching hole of the chuck and then to the other matching hole of the chuck, thereby causing wear of the chuck, large fit clearance, wobbling, and high cost, and if the plastic snap fits, from an existing fit position, the plastic deforms under the coordination of external force, so that the friction is generated between the convex points and the concave points of the matching positions from one matching position to the next matching position, the friction is hard friction and has a limited service life, so an improved rotary adjusting structure is needed to meet the use requirement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a rotary adjusting structure.

The utility model provides a technical scheme that its technical problem adopted is: a rotary adjusting structure comprises a structure main body, wherein the structure main body comprises an upper cover, a nut, a rotary table, a lower cover and a screw;

a C-shaped convex block and a nut groove are formed on the inner end face of the upper cover, a group of first right-angle edges which are symmetrically distributed with each other are arranged on the inner wall of the C-shaped convex block, the nut groove is arranged at the central position of the C-shaped convex block, a C-shaped groove is formed between the C-shaped convex block and the nut groove, a gap groove is formed in one side of the nut groove, the width of the gap groove is larger than that of the nut, and the height of the gap groove is larger than the thickness of the nut;

the middle part of the rotary table is provided with an inner ring, the inner ring is provided with a group of second right-angle edges which are symmetrically distributed, and the inner wall of the inner ring is contacted with the outer wall of the C-shaped lug;

the inner end face of the lower cover is provided with arc-shaped steps which are matched with the nut grooves, the inner edge of the lower cover is provided with a circle of tooth-shaped grooves, the back of each arc-shaped step is provided with an inner groove, and the diameter of each inner groove corresponds to the head of the screw.

Preferably, both sides all are equipped with the location step around the C shape lug, the height that highly is greater than the C shape lug of location step, the inner ring be equipped with a set of with the right angle groove of location step mutually supporting.

Preferably, both sides of the lower cover are provided with round holes.

Preferably, the nut is a regular hexagonal nut, and the nut is placed in the nut groove of the upper cover.

Preferably, the serrated groove is composed of at least 20 grooves, and a span is formed between every two adjacent grooves, and the span is in a range of 17-19 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages of simple and convenient assembly structure, slide into nut groove with the nut along the C-shaped groove of upper cover, it is corresponding with the location step on the carousel inner ring on the right angle recess and the C-shaped lug, simultaneously push into the upper cover with the carousel hard a little, the arbitrary recess of lower cover aims at the carousel and impresses gently, put into lower cover and cooperation recess with the screw, the screw rod of screw passes the nut groove of upper cover, the screw can accomplish the assembly with nut threaded connection, the carousel is equipped with four cooperation muscle simultaneously, the cooperation muscle can effectively avoid having the problem of fit clearance between carousel and the C-shaped groove, thereby second right angle limit and first right angle limit cooperate and play the effect of splining, it is anti-dress when preventing the assembly to set up two first right angle limits and second right angle limits, the inner ring inner wall contacts in order to prevent that carousel and upper cover from taking place relative motion with the outer wall of C-shaped lug.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is another schematic structural diagram of the present invention;

FIG. 3 is a schematic structural view of the upper cover of the present invention;

fig. 4 is a schematic structural view of the C-shaped projection of the present invention;

fig. 5 is a schematic structural view of the lower cover of the present invention;

fig. 6 is a schematic structural diagram of the turntable of the present invention.

Reference numbers in the figures:

the novel nut comprises an upper cover 1, a nut 2, a rotary table 3, a lower cover 4, a screw 5, a C-shaped bump 6, a nut groove 7, a tooth-shaped groove 8, a notch groove 9, a C-shaped groove 10, a positioning step 11, an inner groove 12, an arc-shaped step 13, an inner ring 14, a first right-angle edge 15, a second right-angle edge 16, a right-angle groove 17 and a round hole 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the utility model provides a rotary adjusting structure, which comprises a main structure body, wherein the main structure body comprises an upper cover 1, a nut 2, a rotary table 3, a lower cover 4 and a screw 5;

a C-shaped convex block 6 and a nut groove 7 are formed on the inner end surface of the upper cover 1, a notch is formed in one side of the C-shaped convex block 6, the notch is arranged to facilitate the nut 2 to be installed in the nut groove 7, a group of first right-angle edges 15 which are symmetrically distributed with each other are arranged on the inner wall of the C-shaped convex block 6, the nut groove 7 is formed in the center of the C-shaped convex block 6, a C-shaped groove 10 is formed between the C-shaped convex block 6 and the nut groove 7, a notch groove 9 is formed in one side of the nut groove 7, the width of the notch groove 9 is larger than that of the nut 2, and the height of the notch groove 9 is larger than that of the nut 2;

the rotary table 3 is made of POM raw materials, the POM raw materials have a self-lubricating function in the movement process, an inner ring 14 is arranged in the middle of the rotary table 3, the inner ring 14 is provided with a group of second right-angle sides 16 which are symmetrically distributed with each other, the second right-angle sides 16 are matched with the first right-angle sides 15 to achieve a rotation stopping effect, the two first right-angle sides 15 and the second right-angle sides 16 are arranged to prevent reverse installation in the assembly process, and the inner wall of the inner ring 14 is in contact with the outer wall of the C-shaped convex block 6 to prevent the rotary table 3 and the upper cover 1 from moving relatively;

the turntable 3 is provided with four matching ribs, the matching ribs are arranged to avoid a matching gap between the turntable 3 and the C-shaped groove, four groups of elastic convex circles are arranged on the outer ring of the turntable 3, the most convex part of each group of elastic convex circles is provided with one arc-shaped step, and the diameter of the arc part of the arc-shaped step of the most convex part of the turntable 3 is larger than or equal to the diameter of the groove corresponding to the lower cover 4, so that the situation that the matching is rocked is avoided.

The lower cover 4 is made of PA66 and glass fiber materials, an arc-shaped step 13 is arranged on the inner end face of the lower cover 4, the arc-shaped step 13 is matched with the nut groove 7, a circle of tooth-shaped groove 8 is arranged on the inner edge of the lower cover 4, an inner groove 12 is arranged on the back face of the arc-shaped step 13, and the diameter of the inner groove 12 corresponds to the head of the screw 5.

The front side and the rear side of the C-shaped convex block 6 are respectively provided with a positioning step 11, the height of the positioning step 11 is larger than that of the C-shaped convex block 6, and the inner ring 14 is provided with a group of right-angle grooves 17 matched with the positioning steps 11.

And round holes 18 are formed in two side edges of the lower cover 4, and rivets penetrate through the round holes 18 to realize fixation.

The nut 2 is a regular hexagonal nut, and the nut 2 is placed in the nut groove 7 of the upper cover 1.

The tooth-shaped groove 8 is composed of at least 20 grooves, a span is arranged between every two adjacent grooves, the size range of the span is 18 degrees, and the matching diameter of the grooves is smaller than or equal to the diameter of the circular arc part of the circular arc step in the elastic convex circle of the rotary table 3.

The top of the nut groove 7 is provided with a screw groove, the size of the screw groove is slightly larger than the diameter of the bottom of the screw thread of the nut 2, the head of the screw 5 is provided with a straight groove, the head of the screw is provided with a circular truncated cone, and the screw 5 and the nut 2 play a role in limiting when rotating to the positioning step 11.

The nut slides into the nut groove along the C-shaped groove of the upper cover, the right-angled groove on the inner ring of the rotary table corresponds to the positioning step on the C-shaped lug, meanwhile, the rotary table is pushed into the upper cover slightly by force, any groove of the lower cover is aligned with the rotary table and slightly pressed in, the screw is placed into the lower cover and matched with the groove, the screw rod of the screw passes through the nut groove of the upper cover, the screw is in threaded connection with the nut, the nut and the screw are fixed by the upper cover, therefore, the lower cover axially moves by taking the screw as an axis, the lower cover slightly rotates under the action of external force, the lower cover and the rotary table generate relative displacement, when the rotary table is separated from the groove of the lower cover, the elastic convex circle of the rotary table is minimum in stress at the bottom of the groove, along with the relative displacement, the deformation of the elastic convex circle of the rotary table is gradually increased, the stress is maximum at the top of the groove of the lower cover, and when the rotary table is rotated to the bottom of the next groove, the elastic convex circle of the rotary table is gradually reduced, the elastic deformation to the bottom of the groove of the lower cover is minimum, the stress of the elastic convex circles of the rotary table is minimum, the four groups of elastic convex circles of the rotary table act simultaneously, and the arc-shaped steps of each group of elastic convex circles act on the lower cover and the rotary table repeatedly under the action of external force, so that the rotation adjustment is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A rotary adjusting structure is characterized by comprising a structure main body, wherein the structure main body comprises an upper cover, a nut, a turntable, a lower cover and a screw;

2. A rotary adjustment structure as claimed in claim 1, wherein the C-shaped protrusion has positioning steps on its front and rear sides, the height of the positioning steps is greater than that of the C-shaped protrusion, and the inner ring has a set of right-angle grooves cooperating with the positioning steps.

3. The rotation adjustment structure as claimed in claim 1, wherein the lower cover is provided with round holes at both sides.

4. A rotation adjustment structure according to claim 1, wherein said nut is a regular hexagonal nut, and said nut is placed in a nut groove of the upper cover.

5. A rotary adjustment structure according to claim 1, wherein said toothed groove is composed of at least 20 grooves, and a span is provided between two adjacent grooves, and said span is in a range of 17-19 degrees.