CN210919695U

CN210919695U - Universal type fastening device for interface

Info

Publication number: CN210919695U
Application number: CN201921083293.9U
Authority: CN
Inventors: 张晓辉; 张华�
Original assignee: Anhui Sipade Information Technology Co ltd
Current assignee: Anhui Sipade Information Technology Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-07-03
Anticipated expiration: 2029-07-11

Abstract

The utility model relates to a universal fastening device for an interface, which comprises two nuts and a fixed cylinder, wherein the inner diameter of each nut is a round table body, and an internal thread is arranged on the inner diameter; the fixed cylinder is of a hollow spindle type, the inner diameter of the fixed cylinder is cylindrical, and the outer diameter of the fixed cylinder is smaller than the inner diameter of the nut; a plurality of hole grooves penetrate through the outer side surface of the fixed cylinder along the axial direction of the fixed cylinder; a fastening block is embedded in the hole groove, the section of the fastening block is in a transverse right-angled trapezoid shape, and the top of the fastening block is provided with an external thread; the nuts are respectively sleeved on the fixed cylinder and are meshed with the internal threads of the nuts through external threads on the fastening blocks; the device can fasten two fixed objects with the same thickness together and can fasten the fixed objects with different thicknesses together; the use is more convenient, the universality is very strong, and the device structure is independent and is also convenient to carry.

Description

Universal type fastening device for interface

Technical Field

The utility model belongs to the fixing tool field especially relates to a fastener field.

Background

The traditional fasteners comprise bolts, nuts and the like, the bolt connection is a commonly used connection mode in the mechanical field, in the building industry at present, scaffolds are commonly used, but generally plug-in connection or screw fastening connection is used, if the screw connection is adopted, threads generally need to be turned on a steel pipe, the nuts are used for connection, but the strength of the thread part is far lower than that of other places when the threads are turned, and the situations of deformation cracks, looseness, sliding threads and the like are easily generated after long service time, so that inconvenience is caused during use; meanwhile, the telescopic rod structure is needed in many places, but the structure of the common telescopic rod is an integral structure, the maximum length depends on the design during production, and the universal telescopic rod is not available.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reasonable in design, better general type fastener of performance in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a universal fastening device for an interface comprises two nuts and a fixed cylinder, wherein the inner diameter of each nut is a circular truncated cone, and an internal thread is arranged on the inner diameter of each nut; the fixed cylinder is of a hollow spindle type, and the inner diameter of the fixed cylinder is cylindrical; a plurality of hole grooves penetrate through the outer side surface of the fixed cylinder along the axial direction of the fixed cylinder; a fastening block is embedded in the hole groove, the section of the fastening block is in a transverse right-angled trapezoid shape, and the top of the fastening block is provided with an external thread; in addition, the nuts are respectively sleeved on the fixed cylinder and are meshed with the internal threads of the nuts through the external threads on the fastening blocks.

As a further optimization scheme of the utility model, the fastening block is divided into a first block and a second block, and an elastic component is arranged between the first block and the second block; the elastic component can generate pressure in the vertical direction to increase friction force between threads, so that the threads can be firmly engaged and can not be loosened for a long time.

As a further optimization scheme of the utility model, elastomeric element includes coil spring, be equipped with a plurality of recess on the relative surface of first piece and second piece, coil spring inlays and locates in the recess.

As a further optimization scheme of the utility model, a limit pin is arranged on the inner side wall of the groove close to the bottom; can carry on spacingly to the spring, with the both ends relatively fixed of spring, prevent to take place to drop, also link together convenient to use in the same as like this to the first piece and the second piece of fastening block.

As a further optimization scheme of the utility model, elastomeric element includes shell fragment, a plurality of the top fixed connection of shell fragment is in the bottom surface of first piece.

As a further optimization scheme of the utility model, a friction layer is arranged on the contact surface between the bottom of the second block and the object to be fixed, and the contact surface between the friction layer and the object to be fixed is a mutually inosculated surface; the friction layer may increase the friction between the fastening block and the contacted object.

As a further optimization scheme of the utility model, the quantity of hole groove is six, and the shape is the rectangle.

As a further optimization scheme of the utility model, an anti-skid layer is arranged on the outer surface of the nut; is convenient for daily use without slipping.

The beneficial effects of the utility model reside in that:

1) the utility model can connect two rod-shaped or tubular objects together, and the fixed object does not need to be provided with a head for opening, thus not affecting the structure of the fixed object and the strength of the fixed object;

2) the fastening device can fasten two fixed objects with the same thickness together, and can fasten the fixed objects with different thicknesses together;

3) the fastening device can also fasten the tubular fixed objects together in the same direction to form the effect of a telescopic rod;

4) the fastening device is more convenient to use, has strong universality, and is independent in structure and convenient to carry.

Drawings

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

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic cross-sectional view of the nut of the present invention;

fig. 4 is a schematic perspective view of a part of the fixing cylinder of the present invention;

FIG. 5 is a schematic structural view of the fastening block of the present invention;

FIG. 6 is a schematic structural view of a fastening block according to embodiment 1 of the present invention;

FIG. 7 is a partial enlarged view of the position A of the present invention;

fig. 8 is a schematic structural view of a fastening block according to embodiment 2 of the present invention;

fig. 9 is a schematic structural view of a nut according to embodiment 2 of the present invention;

fig. 10 is a schematic sectional view of a fixed cylinder according to embodiment 2 of the present invention;

fig. 11 is a schematic sectional view of a fixed cylinder according to embodiment 3 of the present invention;

in the figure: 1. a nut; 11. an internal thread; 2. a fixed cylinder; 21. a hole groove; 3. a fastening block; 31. an external thread; 32. a first block; 33. a second block; 4. an elastic member; 41. a coil spring; 42. a spring plate; 5. a groove; 6. a spacing pin; 7. and (4) a friction layer.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

A universal type fastening device for an interface as shown in fig. 1 to 7 includes two nuts 1, a fixed cylinder 2;

the outer surface of the nut 1 is a cylinder, the inner diameter of the nut is a circular truncated cone, an internal thread 11 is arranged on the inner diameter, and an anti-skid layer is arranged on the outer surface;

the fixed cylinder 2 is of a hollow spindle type, the inner diameter of the fixed cylinder is cylindrical, and the outer diameter of the fixed cylinder 2 is smaller than the inner diameter of the nut 1; six hole grooves 21 penetrate through the outer side surface of the fixed cylinder 2 along the axial direction of the fixed cylinder, and the fixed cylinder is rectangular; a fastening block 3 is embedded in the hole groove 21;

the cross section of the fastening block 3 is in a transverse right-angled trapezoid shape, the upper part of the longitudinal section is in an approximate triangle shape, and the top of the longitudinal section is provided with an external thread 31; the nuts 1 are respectively sleeved on the fixed cylinder 2 and are meshed with the internal threads 11 through external threads 31;

the fastening block 3 is divided into a first block 32 and a second block 33, the first block is embedded in the second block, and an elastic part 4 is arranged between the first block 32 and the second block 33;

the elastic part 4 comprises a spiral spring 41, a plurality of grooves 5 are arranged on the opposite surfaces of the first block 32 and the second block 33, and the spiral spring 41 is embedded in the grooves 5; a limiting pin 6 is arranged on the inner side wall of the groove 5 close to the bottom; a friction layer 7 is further arranged on the contact surface of the bottom of the second block 33 and the object to be fixed, and the contact surface of the friction layer 7 and the object to be fixed is a mutually inosculated surface; the friction layer may be made of asbestos fiber friction material.

Example 2

Furthermore, as shown in fig. 8 to 10, the elastic component 4 between the first block 32 and the second block 33 is a spring 42, and the top of the spring 42 is fixedly connected to the bottom surface of the first block 32; and the outer surface of the nut 1 is a hexagonal body, and due to the design of multiple edges, when the nut is used for fastening objects, the nut is efficient and labor-saving and does not slip.

Example 3

Further, as shown in fig. 11, in order to better fasten rod-shaped or tubular objects with different diameters together, the fixing cylinder and the corresponding nut 1 at one end of the fastening device may be smaller than the other end; and at the same time the inner diameter of the fixed cylinder 2 is smaller than the other end.

The use mode or principle of the fastening device is as follows:

1. when in use, the fixed cylinder 2 is sleeved at the interface of two fixed rod-shaped objects;

2. placing the fastening block 3 into the hole groove of the fixed cylinder;

3. the large end of the nut 1 is sleeved on the fixed rod-shaped object from the small end of the fixing cylinder 2, then the nut 1 is rotated, the nut 1 is meshed with the external threads 31 on the fastening block 3, the fastening block 3 is vertically extruded along with the sliding of the nut 1 from large to small, the fastening block 3 is pushed to be gradually extruded inwards, the fastening block 3 holds the rod-shaped object tightly, meanwhile, the elastic component 4 in the fastening block 3 is compressed, the generated pressure in the vertical direction increases the friction force between the threads 31 and between the bottom of the second block 33 and the fixed rod-shaped object, the threads can be firmly meshed, the fixed rod-shaped object cannot be loosened for a long time, and the fixed rod-shaped object is compressed to achieve the fixing purpose; the possibility of damage to the whole device is reduced due to the action of the elastic component 4, and the contact surface of the friction layer 7 and the fixed rod-shaped object is set to be a mutually matched curved surface, so that the contact area of the friction layer and the fixed rod-shaped object is increased, and the fixing effect is enhanced;

4. if the fixed rod-shaped objects are in the form of sleeves with different diameters, a thicker sleeve can penetrate into one end of the fixed cylinder 2 with larger inner diameter, and a thinner sleeve can penetrate into the other end; the fastening effect can be achieved by adopting the process.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A universal-type fastening device for an interface, characterized by: the nut comprises two nuts (1) and a fixed cylinder (2), wherein the inner diameter of each nut (1) is a cone, and an internal thread (11) is arranged on the surface of the inner diameter; the fixed cylinder (2) is of a hollow spindle type, and a plurality of hole grooves (21) penetrate through the outer side surface of the fixed cylinder (2) along the axial direction of the fixed cylinder; a fastening block (3) is embedded in the hole groove (21), the section of the fastening block (3) is in a transverse right-angled trapezoid shape, and the top of the fastening block is provided with an external thread (31); in addition, the nuts (1) are respectively sleeved on the fixed cylinder (2) and are meshed with the internal threads (11) through external threads (31).

2. A universal-type fastening device for an interface as claimed in claim 1, wherein: the fastening block (3) is divided into a first block (32) and a second block (33), and an elastic part (4) is further arranged between the first block (32) and the second block (33).

3. A universal-type fastening device for an interface as claimed in claim 2, wherein: elastic component (4) are equipped with a plurality of recess (5) including coil spring (41) on the relative surface of first piece (32) and second piece (33), coil spring (41) are inlayed and are located in recess (5).

4. A universal-type fastening device for an interface as claimed in claim 3, wherein: and a limiting pin (6) is arranged on the inner side wall, close to the bottom, of the groove (5).

5. A universal-type fastening device for an interface as claimed in claim 2, wherein: the elastic component (4) comprises an elastic sheet (42), and the top of the elastic sheet (42) is fixedly connected to the bottom surface of the first block (32).

6. A fastening device of the universal type for interface according to any one of claims 2 to 5, characterized in that: and a friction layer (7) is further arranged on the contact surface of the bottom of the second block (33) and the object to be fixed, and the contact surface of the friction layer (7) and the object to be fixed is a mutually inosculated surface.

7. A universal-type fastening device for an interface as claimed in claim 1, wherein: the number of the hole grooves (21) is six, and the hole grooves are rectangular.

8. A universal-type fastening device for an interface as claimed in claim 1, wherein: the outer surface of the nut (1) is provided with an anti-slip layer.