CN210531361U

CN210531361U - Special-shaped cross type universal expansion bolt

Info

Publication number: CN210531361U
Application number: CN201921027062.6U
Authority: CN
Inventors: 石鸿儒
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-05-15
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses an omnipotent expansion bolts of dysmorphism crossing relates to the bolt field, this omnipotent expansion bolts of dysmorphism crossing, including lead screw and screw, the position department that the lead screw surface is close to the top is helicitic texture, and the inner wall threaded connection of the helicitic texture on lead screw surface and screw, the lead screw is T shape, and the bottom of lead screw is provided with the cross recess, the top threaded connection of lead screw has the inflation to tie in the head, the screw is located the below that the head was tied in the inflation, the vertical axis that the head was tied in the inflation coincides with the axis of lead screw, the head is tied in the inflation includes pullover, pin and blade, the quantity of blade is two. The utility model discloses a set up blade, lead screw, pin and helicitic texture, solved inflation screw in use and need punch in advance, because the aperture error who punches is big, there is aperture and inflation screw phenomenon of mismatching, therefore needs the inflation component of inflation screw to satisfy adjustable problem.

Description

Special-shaped cross type universal expansion bolt

Technical Field

The utility model relates to a bolt technical field specifically is a universal expansion bolts of dysmorphism crossing.

Background

The expansion screw is generally used for realizing the effect of expansion after installation through the structure of the expansion screw, and is mainly used for fixing equipment, pipelines or brackets and the like on a wall body, a floor slab and a column during installation to achieve the purpose of stability.

The expansion screw in use need punch in advance, because the aperture error of punching is big, has the phenomenon unmatched with the expansion screw, consequently needs the inflation degree of adjusting the expansion screw to reach the fastening purpose, for the expansion member of adjusting the expansion screw, and convenient the regulation, we provide a universal expansion bolt of dysmorphism crossing.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an omnipotent expansion bolts of dysmorphism crossing has solved expansion screw in use and has need punch in advance, because the aperture error who punches is big, has aperture and expansion screw phenomenon of mismatching, therefore needs expansion screw's expansion member to satisfy adjustable problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a special-shaped crossed universal expansion bolt comprises a lead screw and a nut, wherein the position, close to the top, of the surface of the lead screw is of a threaded structure, the threaded structure on the surface of the lead screw is in threaded connection with the inner wall of the nut, the lead screw is T-shaped, a cross groove is formed in the bottom of the lead screw, an expansion bolt head is in threaded connection with the top of the lead screw, the nut is located below the expansion bolt head, the vertical axis of the expansion bolt head is overlapped with the axis of the lead screw, the expansion bolt head comprises a sleeve head, a pin and two blades, the two blades are movably sleeved on the surface of the pin, the bottoms of the two blades are movably connected with the top of the lead screw, the two blades are in mirror symmetry by taking the axis of the lead screw as a symmetry axis, the sleeve head is in a concave shape, the sleeve head is fixedly sleeved on the surface of the pin, and the blades are located at the position of a notch of the, the sleeve head is movably sleeved on the surface of the lead screw and is in threaded connection with the threaded structure on the surface of the lead screw.

Preferably, the pin and the lead screw are perpendicular to each other, and the axis of the pin and the axis of the lead screw intersect at a point.

Preferably, the lower surface of each blade is a plane, the two blades are distributed along the axial direction of the pin, and the opposite surfaces of the two blades are movably connected.

Preferably, two blades are crossed in an X shape, and the top of each blade is an arched curved surface which is bent upwards.

(III) advantageous effects

The utility model provides an omnipotent expansion bolts of dysmorphism crossing possesses following beneficial effect:

the utility model discloses a set up the blade, the lead screw, pin and helicitic texture, two blades are the inflation component, cross distribution, through rotatory lead screw, adjust the vertical distance between lead screw and the pin, two blades of lead screw extrusion, control two blade cross angles, can adjust the degree of opening and shutting of two blades, reach and adjust expansion bolts inflation degree, more stable fastening and support are at downthehole purpose, it needs to punch in use in advance to have solved expansion screw, because the aperture error who punches is big, there is aperture and the mismatch phenomenon of expansion screw, consequently, the inflation component that needs expansion screw satisfies adjustable problem.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the blade structure of the present invention;

fig. 4 is a bottom view of the screw of the present invention.

In the figure: 1. a lead screw; 2. a nut; 3. a thread structure; 4. a cross groove; 5. an expansion bolt head; 6. sleeving heads; 7. a pin; 8. a blade.

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. 1-4, the utility model provides a technical solution: a special-shaped crossed universal expansion bolt comprises a lead screw 1 and a nut 2, wherein the position, close to the top, of the surface of the lead screw 1 is a threaded structure 3, the threaded structure 3 on the surface of the lead screw 1 is in threaded connection with the inner wall of the nut 2, the lead screw 1 is T-shaped, a cross groove 4 is formed in the bottom of the lead screw 1, an expansion bolt head 5 is in threaded connection with the top of the lead screw 1, the nut 2 is located below the expansion bolt head 5, the vertical axis of the expansion bolt head 5 is overlapped with the axis of the lead screw 1, the expansion bolt head 5 comprises a sleeve head 6, a pin 7 and two blades 8, the number of the two blades 8 is two, the two blades 8 are movably sleeved on the surface of the pin 7, the bottoms of the two blades 8 are movably connected with the top of the lead screw 1, the two blades 8 are in mirror symmetry with the axis of the lead screw 1 as a symmetry axis, the sleeve head 6 is in a concave shape, the, the blade 8 is located at the notch position of the sleeve head 6, and the sleeve head 6 is movably sleeved on the surface of the screw rod 1 and is in threaded connection with the thread structure 3 on the surface of the screw rod 1.

As a technical optimization scheme of the utility model, pin 7 and 1 mutually perpendicular of lead screw, and the axis of pin 7 intersects in a bit with the axis of lead screw 1, guarantees that 1 top of lead screw supports tightly in the nodical position department of two blades 8.

As the utility model discloses a technical optimization scheme, blade 8's lower surface is the plane, and two blade 8 distribute along the axis direction of pin 7, and two blade 8's opposite face swing joint, and the through-hole on blade 8 surface is located the middle part.

As a technical optimization scheme of the utility model, two blades 8 are that X-shaped is alternately, and the top of blade 8 is the arch curved surface of kickup, and blade 8 is the inflation component, and the degree of opening and shutting between two blade 8 tops is the inflation degree.

When using, rotatory screw 2, screw 2 can be followed screw 1 surface from top to bottom and removed, adjust the downthehole depth of screw 2 control squeeze-in wall body, inflation bolt head 5 is squeezed into downthehole completely, the hole inner wall supports the top of tight two blades 8, two blades 8 cross distribution, guarantee that inflation bolt head 5 can not be at downthehole rotation, lead screw 1 is pressed from both sides in the below contained angle between two blades 8, rotatory lead screw 1, pullover 6 is motionless this moment, lead screw 1 moves along inflation bolt head 5 axis direction, adjust the vertical distance between lead screw 1 and the pin 7, when lead screw 1 extrudees two blades 8 to being close to pin 7 direction, two blades 8 cross angle increase, two blades 8's the degree of opening and shutting increase promptly, prop downthehole, reach more inflation effect.

To sum up can, the utility model discloses a set up blade 8, lead screw 1, pin 7 and helicitic texture 3, solved expansion screw in use and need punch in advance, because the aperture error who punches is big, there is aperture and expansion screw phenomenon of mismatching, therefore needs the expansion member of expansion screw to satisfy adjustable problem.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a omnipotent expansion bolts of dysmorphism crossing, includes lead screw (1) and screw (2), the position department that lead screw (1) surface is close to the top is helicitic texture (3), and the inner wall threaded connection of helicitic texture (3) and screw (2) on lead screw (1) surface, its characterized in that: the lead screw (1) is T-shaped, a cross groove (4) is formed in the bottom of the lead screw (1), an expansion bolt head (5) is connected to the top of the lead screw (1) in a threaded mode, the screw nut (2) is located below the expansion bolt head (5), the vertical axis of the expansion bolt head (5) is overlapped with the axis of the lead screw (1), the expansion bolt head (5) comprises a sleeve head (6), pins (7) and blades (8), the number of the blades (8) is two, the two blades (8) are movably sleeved on the surface of the pins (7), the bottoms of the two blades (8) are movably connected with the top of the lead screw (1), the two blades (8) are in mirror symmetry with the axis of the lead screw (1) serving as a symmetry axis, the sleeve head (6) is concave-shaped, the sleeve head (6) is fixedly sleeved on the surface of the pins (7), and the blades (8) are located at the position of a notch of the sleeve head (6), the sleeve head (6) is movably sleeved on the surface of the lead screw (1) and is in threaded connection with the threaded structure (3) on the surface of the lead screw (1).

2. The shaped cross type universal expansion bolt as claimed in claim 1, wherein: the pin (7) is perpendicular to the screw rod (1), and the axis of the pin (7) is intersected with the axis of the screw rod (1) at one point.

3. The shaped cross type universal expansion bolt as claimed in claim 1, wherein: the lower surface of each blade (8) is a plane, the two blades (8) are distributed along the axis direction of the pin (7), and the opposite surfaces of the two blades (8) are movably connected.

4. The shaped cross type universal expansion bolt as claimed in claim 1, wherein: the two blades (8) are crossed in an X shape, and the tops of the blades (8) are arched curved surfaces which are bent upwards.