CN210500104U

CN210500104U - Nut mounting and dismounting device for expansion screw

Info

Publication number: CN210500104U
Application number: CN201921606674.0U
Authority: CN
Inventors: 陈兴华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-05-12
Anticipated expiration: 2029-09-25

Abstract

The utility model provides a device is installed and removed to nut of inflation screw, install and remove the mechanism including drive arrangement and nut, the nut is installed and is removed the mechanism and include the mount pad, nut positioning sleeve, a spring, nut rear side support piece, the mount pad is installed on drive arrangement's output shaft, nut positioning sleeve installs at the mount pad front end, support piece accommodation area and nut positioning area have in the nut positioning sleeve, the cross sectional shape and the nut shape in nut positioning area are the same, the nut positioning sleeve lateral wall at nut positioning area place is opened has the nut and is gone into the groove, nut rear side support piece, the spring all is located support piece accommodation area and the spring both ends support terminal surface before the mount pad and nut rear side support piece rear end face respectively, nut rear side support piece middle part is opened has the through-hole that. The utility model discloses can install the nut on the inflation screw or dismantle from the inflation screw fast, replace manual operation swivel nut with it, convenient operation is swift, and work efficiency is high, can adapt to the needs of extensive industrialization.

Description

Nut mounting and dismounting device for expansion screw

Technical Field

The utility model relates to an equipment of inflation screw, disassembling equipment, more specifically say and relate to one kind can install the nut on the inflation screw or follow the inflation screw and dismantle the nut of the inflation screw that gets off and install the device fast.

Background

The expansion screw is a metal expansion screw, and the expansion screw is fixed by utilizing the wedge-shaped slope to promote expansion to generate friction bond force so as to achieve the fixing effect. One end of the screw is provided with threads, and the other end of the screw is provided with conicity. The outer surface of the wall is covered by an iron sheet (some steel pipes), a half of an iron sheet cylinder (steel pipe) is provided with a plurality of notches, the iron sheet cylinder (steel pipe) and the notches are plugged into a hole drilled on the wall together, then a nut is locked, the nut pulls a screw outwards to pull the taper into the iron sheet cylinder, the iron sheet cylinder is expanded and then is tightly fixed on the wall, and the wall is generally used for fastening protective guards, rain awnings, air conditioners and the like on materials such as cement, bricks and the like. However, it is not very reliable in its fixation and may come loose if the load is subjected to large shocks, so that it is not recommended to install ceiling fans and the like.

The expansion screw consists of a screw rod, an expansion pipe and other parts, the tail part of the screw rod is conical, and the inner diameter of the cone is larger than that of the expansion pipe. When the nut is screwed down, the screw rod moves outwards, the conical part moves through the axial movement of the threads, so that a large positive pressure is formed on the peripheral surface of the expansion pipe, and the angle of the cone is small, so that friction self-locking is formed among the wall body, the expansion pipe and the cone, and the fixing effect is achieved. The spring washer on the expansion screw is a standard part, and is called a spring washer because the opening of the spring washer is staggered and elastic, and the spring washer has the function of utilizing sharp corners of the staggered opening to penetrate into the nut and the flat washer to prevent the nut from loosening. The flat gasket is also a standard component, and functions to evenly distribute the pressure of the nut over the parts being joined.

At present, the expansion screw is mainly applied to the field of foreign high-end buildings, such as developed countries of Europe, America, middle east, Japan and Korean, and the like, and enters the domestic market in 2013. It is widely suitable for the operation of concrete burying. Such as: building curtain walls, interior decoration, air conditioners, lamp decorations, advertising boards, television wall hanging, water and electricity of bathroom (kitchen ware), monitors and other related industries and fields.

Disclosure of Invention

The utility model aims at providing a device is installed and removed to nut of inflation screw, this kind of device is installed and removed to nut of inflation screw can be fast with the nut install the inflation screw on or dismantle from the inflation screw.

The technical scheme is as follows:

the utility model provides a nut of inflation screw is installed and removed device which characterized in that: install and remove the mechanism including drive arrangement and nut, the nut is installed and is removed the mechanism and include the mount pad, nut position sleeve, a spring, nut rear side support piece, the mount pad is installed on drive arrangement's output shaft, nut position sleeve installs at the mount pad front end, support piece accommodation area and nut positioning area have in the nut position sleeve, the cross sectional shape and the nut shape in nut positioning area are the same, the nut position sleeve lateral wall at nut positioning area place is opened has the nut that can let the nut from this horizontal entering and is gone into the groove, nut rear side support piece, the spring all is located support piece accommodation area and the spring both ends support terminal surface before the mount pad and nut rear side support piece rear end face respectively, nut rear side support piece middle part is opened has the through-hole that can let the bolt pass through. When the nut moves transversely and enters the nut positioning area from the nut entering groove, the bolt of the expansion screw enters from the opening of the nut positioning area, aligns and abuts against the front end of the opening in the middle of the nut, the support piece on the rear side of the nut abuts against the rear end of the nut, then the driving device drives the nut assembling and disassembling mechanism to rotate, so that the nut rotates, the nut is in threaded connection with the bolt, and therefore the bolt sequentially passes through the through holes of the nut and the support piece on the rear side of the nut and enters the support piece accommodating area until the nut is in a proper position of the bolt, and the nut can be installed; when the nut of the expansion screw enters the nut positioning area from the nut entering groove during disassembly, the output shaft of the driving device is rotated reversely, and the nut can be disassembled.

Preferably, the nut rear side support member is composed of a rear side circular ring and a front side nut-shaped support member. The rear side ring is convenient for reduce frictional force when contacting with the mount pad, and front side nut form support piece is convenient for contact with the nut, can reduce frictional force when contacting moreover.

Better scheme, the mount pad is followed backward and is made up by the back seat in proper order, external screw thread step and holding ring, the back seat trailing flank is opened has the shaft hole that can insert drive arrangement's output shaft, it has the locking screw to open on the back seat lateral wall, drive arrangement's output shaft inserts the shaft hole, locking screw from outer inwards passing the locking screw and withholding the output shaft that can insert drive arrangement, lock the mount pad on drive arrangement's output shaft, nut position sleeve rear portion inside wall has the internal thread, the external screw thread step threaded connection of nut position sleeve and mount pad, the spring housing is on the holding ring lateral surface.

Preferably, the driving device is a motor.

Preferably, the cross section of the output shaft of the motor is square. The shape is convenient for installation and fixation, and the shaking between the output shaft and the mounting seat is effectively avoided.

Compared with the prior art, the utility model, owing to be equipped with the nut and install and remove the mechanism, consequently can install the nut on the inflation screw fast or dismantle from the inflation screw and get off, replace manual operation swivel nut with it, convenient operation is swift, and work efficiency is high, can adapt to the needs of extensive industrialization.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 2 is an exploded view of the preferred embodiment nut attaching and detaching mechanism shown in fig. 1.

FIG. 3 is a cross-sectional view of the preferred embodiment nut mounting and dismounting mechanism of FIG. 1;

fig. 4 is a reference diagram of a use state of the preferred embodiment shown in fig. 1.

Detailed Description

As shown in fig. 1 to 3, the nut mounting and dismounting device for the expansion screw in the preferred embodiment comprises a driving device and a nut mounting and dismounting mechanism 2, wherein the nut mounting and dismounting mechanism 2 comprises a mounting seat 21, a nut positioning sleeve 22 and a spring 23, the nut rear side support piece 24, the mounting base 21 is installed on the output shaft of the driving device, the nut positioning sleeve 22 is installed at the front end of the mounting base 21, a support piece accommodating area 221 and a nut positioning area 222 are arranged in the nut positioning sleeve 22, the cross section of the nut positioning area 222 is the same as the nut in shape, a nut entering groove 223 allowing a nut to transversely enter from the nut positioning area is formed in the side wall of the nut positioning sleeve 22 where the nut positioning area 222 is located, the nut rear side support piece 24 and the spring 23 are both located in the support piece accommodating area 221, two ends of the spring 23 respectively abut against the front end face of the mounting base 21 and the rear end face of the nut rear side support piece 24, and a through hole allowing a bolt to pass through is formed in the.

The nut rear support 24 is composed of a rear ring 241 and a front nut-shaped support 242.

The mounting seat 21 sequentially comprises a rear seat 211, an external thread step 212 and a positioning ring 213 from back to front, a shaft hole 214 capable of being inserted with an output shaft of a driving device is formed in the rear side face of the rear seat 211, a locking screw hole 215 is formed in the side wall of the rear seat 211, the output shaft of the driving device is inserted into the shaft hole 214, a locking screw 216 penetrates through the locking screw hole 215 from outside to inside to abut against the output shaft capable of being inserted with the driving device, the mounting seat 21 is locked on the output shaft of the driving device, an internal thread is formed in the inner side wall of the rear portion of the nut positioning sleeve 22, the nut positioning sleeve 22 is in threaded connection with the external thread step 212 of the mounting.

The driving device is a motor. In this embodiment, the motor is a servo motor 1.

The cross section of the output shaft of the servo motor 1 is square.

The operation is described below with reference to fig. 1-4:

1. installation of the nut 3: the nut 3 is moved transversely and enters a nut positioning area 222 from a nut 3 entering groove, then the bolt 4 of the expansion screw enters from the opening of the nut positioning area 222, aligns and abuts against the front end of the middle opening of the nut 3, the nut rear side support piece 24 abuts against the rear end of the nut 3, then the driving device drives the nut assembling and disassembling mechanism 2 to rotate, so that the nut 3 rotates, the nut 3 is in threaded connection with the bolt 4, therefore, the bolt 4 sequentially passes through the through holes of the nut 3 and the nut rear side support piece 24 and enters a support piece accommodating area 221 until the nut 3 is in a proper position of the bolt 4, the nut 3 can be assembled, due to the existence of the spring 23, when the nut 3 is moved in place, the nut rear side support piece 24 can move backwards for a small distance, and the nut rear side support piece 24 is prevented from being collided to cause damage to the;

2. disassembling the nut 3: after the nut 3 of the expansion screw enters the nut positioning area 222 from the nut entering groove 223, the output shaft of the driving device is rotated reversely, and the nut 3 can be detached.

The operation of placing the nut into the nut positioning area 222, inserting the bolt into the nut positioning area 222, and placing the expansion screw, which needs to disassemble the nut, into the nut positioning area 222 can be performed by manual operation or mechanical equipment.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a nut of inflation screw is installed and removed device which characterized in that: install and remove the mechanism including drive arrangement and nut, the nut is installed and is removed the mechanism and include the mount pad, nut position sleeve, a spring, nut rear side support piece, the mount pad is installed on drive arrangement's output shaft, nut position sleeve installs at the mount pad front end, support piece accommodation area and nut positioning area have in the nut position sleeve, the cross sectional shape and the nut shape in nut positioning area are the same, the nut position sleeve lateral wall at nut positioning area place is opened has the nut that can let the nut from this horizontal entering and is gone into the groove, nut rear side support piece, the spring all is located support piece accommodation area and the spring both ends support terminal surface before the mount pad and nut rear side support piece rear end face respectively, nut rear side support piece middle part is opened has the through-hole that can let the bolt pass through.

2. The nut fitting and removing device for an expansion screw according to claim 1, wherein: the nut rear side support piece comprises a rear side circular ring and a front side nut-shaped support piece.

3. The nut fitting and removing device for an expansion screw according to claim 1, wherein: the mounting seat is followed backward to preceding by the back seat in proper order, external screw thread step and holding ring are constituteed, the back seat trailing flank is opened has the shaft hole that can insert drive arrangement's output shaft, it has the locking screw to open on the back seat lateral wall, drive arrangement's output shaft inserts the shaft hole, locking screw from outer inwards passes the locking screw and withstands the output shaft that can insert drive arrangement, lock the mounting seat on drive arrangement's output shaft, nut positioning sleeve rear portion inside wall has the internal thread, nut positioning sleeve and the external screw thread step threaded connection of mounting seat, the spring housing is on the holding ring lateral surface.

4. The nut fitting and removing device for an expansion screw according to any one of claims 1 to 3, wherein: the driving device is a motor.

5. The nut fitting and removing device for an expansion screw according to claim 4, wherein: the cross section of the output shaft of the motor is square.