CN216922768U

CN216922768U - Split type expansion bolts is used in furniture decoration

Info

Publication number: CN216922768U
Application number: CN202123237731.2U
Authority: CN
Inventors: 王友钱
Original assignee: Tianjin Zhongyi Machinery Co ltd
Current assignee: Tianjin Zhongyi Machinery Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-08
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the technical field of expansion bolts, and particularly relates to a split type expansion bolt for furniture decoration, which comprises a main screw rod and a bolt, wherein the top of the outer surface of the bolt is provided with a sleeve, an air bag is fixedly arranged inside the sleeve, the outer surface of the air bag is fixedly connected with a vent plug, the inside of the air bag is fixedly connected with an inner ring, the top of the screw rod is connected with a rotating rod, the outer surface of the rotating rod is sleeved with a hand wheel ring, the inside of the hand wheel ring is provided with a through groove, and the outer surface of the hand wheel ring is fixedly connected with a valve rod. This split type expansion bolts is used in furniture decoration through at sheathed tube internally mounted has the gasbag, at expansion bolts installation back, begins to extrude the sleeve pipe to extrude the gasbag, the inside gas of gasbag is extruded the back, can push away one-way valve and discharge from the breather plug, thereby makes the gasbag shrink, increases sheathed tube inside space, thereby increase expansion sleeve pipe and the area of contact in inflation hole are little, makes expansion bolts inflation deformation little.

Description

Split type expansion bolts is used in furniture decoration

Technical Field

The utility model relates to the technical field of expansion bolts, in particular to a split type expansion bolt for furniture decoration.

Background

Expansion bolt is a special screw connector for fixing pipeline branch/hanger/bracket or equipment on wall, floor and column.

The expansion bolt comprises an expansion bolt, a nut and an expansion sleeve, wherein the nut and the expansion sleeve are matched with the expansion bolt, the tail end of the expansion bolt is a circular truncated cone-shaped nail head or is provided with a circular truncated cone-shaped nut, when the expansion bolt is used, the expansion bolt or the nut is screwed, the circular truncated cone-shaped nail head or the circular truncated cone-shaped nut is pressed into the expansion sleeve from the small end to the large end, and the expansion sleeve is forced to expand and deform and expand in the mounting hole.

The existing expansion sleeve only has a single sleeve, so that the contact area between the expansion sleeve and an expansion hole is small, the expansion deformation of the expansion bolt is small, and the installation of the expansion bolt is not fastened enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a split type expansion bolt for furniture decoration, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a furniture decoration is with split type expansion bolts, includes king-screw and bolt, bolt fixed connection is in king-screw's bottom, the surface top of bolt is provided with the sleeve pipe.

The inside fixed mounting of sheathed tube has the gasbag, the surface fixedly connected with breather plug of gasbag, the inside fixedly connected with inner circle of gasbag through having the gasbag at sheathed tube internally mounted, after the expansion bolts installation, begins to extrude the sleeve pipe to extrude the gasbag, the inside gas of gasbag is extruded the back, can push open one-way valve and discharge from breather plug, thereby makes the gasbag shrink.

Preferably, the number of the vent plugs is four, the four vent plugs are distributed on the outer surface of the air bag at equal intervals, the vent plugs penetrate through the sleeve and extend to the outside of the sleeve, the inside of the vent plugs is composed of one-way valves, and threads matched with the outer surface of the main screw rod are formed in the inner ring.

Preferably, the top of the outer surface of the main screw is in threaded connection with a locking nut, a spring washer is arranged at the bottom of the locking nut, a first flat washer is arranged at the bottom of the spring washer, and a second flat washer is arranged at the bottom of the first flat washer.

Preferably, the diameters of the spring washer, the first flat washer and the second flat washer are the same, threads matched with the outer surface of the main screw rod are formed in the inner walls of the spring washer, the first flat washer and the second flat washer, and the spring washer provides force for the lock nut after the lock nut is screwed down, so that the friction force between the lock nut and the bolt is increased.

Preferably, the top of lead screw rod is connected with the dwang, the hand wheel ring has been cup jointed to the surface of dwang, logical groove has been seted up to the inside of hand wheel ring, the outer fixed surface of hand wheel ring is connected with the valve rod, when dismantling and installing bolt, through rotating the valve rod, makes the valve rod drive hand wheel ring and dwang rotate, and the dwang drives the lead screw rod and rotates.

Preferably, the quantity that leads to the groove is three, three lead to the equidistant symmetric distribution in the inside of hand wheel ring in groove, lead to inside the groove runs through hand wheel ring, the valve rod run through lead to the groove and with dwang fixed connection, the bottom of dwang and the top fixed connection of final lead screw.

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

1. this split type expansion bolts is used in furniture decoration through at sheathed tube internally mounted has the gasbag, at expansion bolts installation back, begins to extrude the sleeve pipe to extrude the gasbag, the inside gas of gasbag is extruded the back, can push away one-way valve and discharge from the breather plug, thereby makes the gasbag shrink, increases sheathed tube inside space, thereby increase expansion sleeve pipe and the area of contact in inflation hole are little, makes expansion bolts inflation deformation little.

2. This split type expansion bolts is used in furniture decoration when dismantling and construction bolt, through rotating the valve rod, makes the valve rod drive hand wheel ring and dwang rotate, and the dwang drives the lead screw and rotates to install and dismantle the lead screw, can use relatively less power to carry out the dismantlement and the installation of lead screw, easy operation.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an enlarged view of a portion of the main screw according to the present invention;

FIG. 3 is a cross-sectional view of the layered construction of the bushing of the present invention;

fig. 4 is a top view of the swivelling levers of the present invention.

In the figure: 1 main screw rod, 101 lock nut, 102 spring washer, 103 flat washer I, 104 flat washer II, 2 bolts, 3 sleeves, 301 air bag, 302 vent plug, 303 inner ring, 4 rotating rod, 401 hand wheel ring, 402 through groove and 403 valve rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a furniture decoration is with split type expansion bolts, includes king-screw 1 and bolt 2, and bolt 2 fixed connection is in king-screw 1's bottom, and the surface top of bolt 2 is provided with sleeve pipe 3.

The top of the outer surface of the main screw rod 1 is connected with a locking nut 101 in a threaded mode, a spring washer 102 is arranged at the bottom of the locking nut 101, a flat washer 103 is arranged at the bottom of the spring washer 102, a flat washer 104 is arranged at the bottom of the flat washer 103, the diameters of the spring washer 102, the flat washer 103 and the flat washer 104 are the same, threads matched with the outer surface of the main screw rod 1 are formed in the inner walls of the spring washer 102, the flat washer 103 and the flat washer 104, the spring washer 102 exerts a force on the locking nut 101 after the locking nut 101 is screwed down to increase the friction force between the locking nut 101 and the bolt 2, in order to prevent the bolt 2 from loosening caused by vibration of equipment in operation, the contact area between the bolt 2 and a mounting surface is enlarged 104 through the flat washer 103 and the flat washer 104, and pressure is reduced.

The inside fixed mounting of sleeve 3 has gasbag 301, the outer surface fixedly connected with breather plug 302 of gasbag 301, the inside fixedly connected with inner circle 303 of gasbag 301, the quantity of breather plug 302 is four, four breather plugs 302 are equidistantly distributed in the surface of gasbag 301, breather plug 302 runs through sleeve 3 and extends to the outside of sleeve 3, breather plug 302 is inside to comprise one-way valve, the inside of inner circle 303 is seted up with the screw thread of main screw 1 surface adaptation, the outer surface bottom of sleeve 3 is seted up the inflation hole, through the internally mounted have gasbag 301 at sleeve 3, after the expansion bolt installation, begin to extrude sleeve 3, thereby extrude gasbag 301, the inside gas of gasbag 301 is extruded, can extrude one-way valve and discharge from breather plug 302, thereby make gasbag 301 shrink, increase the inside space of sleeve 3, thereby increase the contact area of expansion sleeve 3 and inflation hole is little, so that the expansion bolt has small expansion deformation.

The top of king screw 1 is connected with dwang 4, hand wheel ring 401 has been cup jointed to the surface of dwang 4, logical groove 402 has been seted up to the inside of hand wheel ring 401, the outer fixed surface of hand wheel ring 401 is connected with valve rod 403, the quantity that leads to groove 402 is three, equidistant symmetric distribution is in the inside of hand wheel ring 401 to three logical groove 402, it runs through inside hand wheel ring 401 to lead to groove 402, valve rod 403 runs through logical groove 402 and with dwang 4 fixed connection, the bottom of dwang 4 and king screw 1's top fixed connection, when dismantling and installing bolt 2, through rotating valve rod 403, make valve rod 403 drive hand wheel ring 401 and dwang 4 rotate, dwang 4 drives king screw 1 and rotates, thereby install and dismantle king screw 1, can use relatively less power to carry out the dismantlement and the installation of king screw 1, and easy operation.

When the air bag inflation device is used, the valve rod 403 is rotated to drive the hand wheel ring 401 and the rotating rod 4 to rotate, the rotating rod 4 drives the main screw rod 1 to rotate, the main screw rod 1 is installed and disassembled, the sleeve 3 starts to be extruded after the expansion bolt is installed, the air bag 301 is extruded, and after the air in the air bag 301 is extruded, the one-way valve can be extruded to be discharged from the vent plug 302, so that the air bag 301 contracts, and the space in the sleeve 3 is enlarged.

Claims

1. The utility model provides a furniture decoration is with split type expansion bolts, includes king-screw (1) and bolt (2), its characterized in that: the bolt (2) is fixedly connected to the bottom of the main screw rod (1), and a sleeve (3) is arranged at the top of the outer surface of the bolt (2);

the inner portion of the sleeve (3) is fixedly provided with an air bag (301), the outer surface of the air bag (301) is fixedly connected with a vent plug (302), and the inner portion of the air bag (301) is fixedly connected with an inner ring (303).

2. The split expansion bolt for furniture decoration according to claim 1, wherein: the number of the vent plugs (302) is four, the four vent plugs (302) are equidistantly distributed on the outer surface of the air bag (301), the vent plugs (302) penetrate through the sleeve (3) and extend to the outside of the sleeve (3), the vent plugs (302) are composed of one-way valves, and threads matched with the outer surface of the main screw rod (1) are formed in the inner portion of the inner ring (303).

3. The split expansion bolt for furniture decoration according to claim 1, wherein: the outer surface top of the main screw rod (1) is in threaded connection with a locking nut (101), the bottom of the locking nut (101) is provided with a spring washer (102), the bottom of the spring washer (102) is provided with a first plain washer (103), and the bottom of the first plain washer (103) is provided with a second plain washer (104).

4. The split expansion bolt for furniture decoration according to claim 3, wherein: the diameters of the spring washer (102), the first flat washer (103) and the second flat washer (104) are the same, and threads matched with the outer surface of the main screw rod (1) are formed in the inner walls of the spring washer (102), the first flat washer (103) and the second flat washer (104).

5. The split expansion bolt for furniture decoration according to claim 1, wherein: the top of lead screw (1) is connected with dwang (4), hand wheel ring (401) has been cup jointed to the surface of dwang (4), logical groove (402) have been seted up to the inside of hand wheel ring (401), the outer fixed surface of hand wheel ring (401) is connected with valve rod (403).

6. The split expansion bolt for furniture decoration according to claim 5, wherein: the quantity that leads to groove (402) is three, three lead to groove (402) equidistant symmetric distribution in the inside of hand wheel ring (401), it runs through inside hand wheel ring (401) to lead to groove (402), valve rod (403) run through lead to groove (402) and with dwang (4) fixed connection, the bottom of dwang (4) and the top fixed connection of king screw (1).