CN214092659U

CN214092659U - Double-tube type screw

Info

Publication number: CN214092659U
Application number: CN202022611806.8U
Authority: CN
Inventors: 李其军
Original assignee: Shanghai Dingfeng Standard Parts Co ltd
Current assignee: Shanghai Dingfeng Standard Parts Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-08-31
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a double-pipe screw, including external pipe and built-in pole, the terminal surface is fixed mounting has the inclined plane connection pad under the external pipe, the external pipe rotates inside and is connected with built-in pole, built-in pole annular surface is close to upper end position department parcel has the cushion rubber piece, built-in pole annular surface is close to upper end position department and rotates and is connected with built-in nut, inclined plane through groove has been seted up to the inside intermediate position department of inclined plane connection pad, built-in pole inside intermediate position department has seted up built-in through groove, the position department has seted up a plurality of intercommunication grooves around built-in through groove inside the built-in pole, a plurality of oil outlet has been seted up to built-in pole annular surface; this double-pipe screw not only can make the even flow of lubricating oil fall to built-in rod annular surface, accomplishes the lubrication action between built-in rod and the external pipe, also can make effectively aim at between external nut and the built-in rod, the installation effect of the external personnel of being convenient for to external nut.

Description

Double-tube type screw

Technical Field

The utility model particularly relates to a double-pipe screw.

Background

The screw refers to a screw, it is the physics and mathematical principle that utilize the inclined plane circular rotation and frictional force of the object, the tool of the fastener part of the gradual fastening device, the screw is the general saying of the fastener, the common oral wording, the metric screw thread is in MM unit, its tooth sharp angle is 60 degrees, American screw thread and English screw thread are in inch unit, the tooth sharp angle of American screw thread is 60 degrees too, and the tooth sharp angle of English screw thread is 55 degrees, the screw is a common fastener, use extensively on machinery, electrical apparatus and building, the general material is metal or plastic, take the form of the cylinder, the surface is carved with the concave and convex ditch and called the screw thread.

Double-barrelled formula screw is in the use, because of inside does not have better lubricated mechanism, when leading to outside personnel to carry out lubricated operation to the screw and handle, very inconvenient, lubricating oil can not be even scribbles at screw annular surface simultaneously, is unfavorable for outside personnel to carry out operation processing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a double-pipe screw, solved inside not having better lubricated mechanism, when leading to outside personnel to screw lubricated operation processing, very inconvenient, lubricating oil can not be even simultaneously paint at screw annular surface, is unfavorable for outside personnel to carry out the problem of operation processing.

In order to solve the technical problem, the utility model provides a double-pipe screw, including external pipe and built-in pole, terminal surface fixed mounting has the inclined plane connection pad under the external pipe, external pipe rotates inside and is connected with the built-in pole, built-in pole annular surface is close to upper end position department parcel and has the cushion rubber piece, built-in pole annular surface is close to upper end position department and rotates and be connected with built-in nut, the inside intermediate position department of inclined plane connection pad has seted up the inclined plane and has led to the groove, the inside intermediate position department of built-in pole has seted up built-in logical groove, the inside built-in pole that is located built-in logical groove position department has seted up a plurality of intercommunication groove all around.

Preferably, a plurality of oil outlets are formed in the annular outer surface of the built-in rod, and a plurality of oil grooves are formed in the communicating groove and close to the lower end of the communicating groove.

Preferably, the upper end face of the built-in rod is fixedly provided with a limiting multi-face block, an external nut is movably connected above the built-in rod, the inner wall of the external nut is provided with internal threads, and the positions of the peripheral corners of the inner wall of the external nut are provided with inclined plane contact grooves.

Preferably, the limiting multi-surface block is a four-surface block, and the four peripheral corner positions of the limiting multi-surface block are in embedded connection between the inclined surface interference grooves.

Preferably, the internal thread corresponds to the external thread, and the external nut is in threaded connection with the internal rod.

Preferably, the oil outlet is communicated with the inside of the communicating groove, and the inner surfaces of the two sides of the oil accommodating groove are inclined planes.

Preferably, the inclined through groove is communicated with the inside of the built-in through groove, the built-in nut is in threaded connection with the built-in rod, and the buffer rubber sheet is located between the built-in nut and the external pipe.

Compared with the prior art, the utility model provides a double-barrelled formula screw has following beneficial effect:

the utility model provides a double-pipe screw, when lubricating treatment through to built-in pole, outside personnel directly pour into lubricating oil to the inclined plane connection pad inside, after lubricating oil pours into the inclined plane connection pad inside, just carry built-in logical inslot portion, because built-in logical groove is linked together with the intercommunication inslot portion, lubricating oil is carried to the intercommunication inslot portion, and then carry lubricating oil out through the oil outlet, unnecessary lubricating oil is carried to the built-in oil groove inside, the oil groove inner wall sets up to the inclined plane, so the oil groove has better oil storage capacity, avoid lubricating oil to cause the waste, simultaneously, can also make lubricating oil flow down to built-in pole annular surface evenly, accomplish the lubrication action between built-in pole and external pipe;

when screwing up with rotating between external nut and the built-in pole, outside personnel accessible is injectd the restriction alignment effect between many face pieces and the inclined plane conflict groove, makes and injects the many face piece and passes the inclined plane conflict inslot, passes the back, just can make effectively aim at between external nut and the built-in pole, the installation effect of the external personnel of being convenient for to external nut.

Drawings

Fig. 1 is a schematic structural diagram of a double-tube screw according to a preferred embodiment of the present invention;

FIG. 2 is a schematic plan view of the combined internal structure of the external pipe and the internal rod shown in FIG. 1;

fig. 3 is an enlarged schematic view of the internal structure of the region a shown in fig. 1.

Reference numbers in the figures: 1. external pipe, 2, inclined plane connection pad, 3, cushion rubber piece, 4, built-in nut, 5, built-in pole, 6, external screw thread, 7, inclined plane logical groove, 8, inclined plane conflict groove, 9, built-in logical groove, 10, intercommunication groove, 11, put the oil groove, 12, oil outlet, 13, inject many face pieces, 14, external nut, 15, internal thread.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a dual-tube screw according to a preferred embodiment of the present invention; FIG. 2 is a schematic plan view of the combined internal structure of the external pipe and the internal rod shown in FIG. 1; fig. 3 is an enlarged schematic view of the internal structure of the region a shown in fig. 1. The double-tube type screw comprises an external tube 1 and an internal rod 5;

an inclined plane connecting disc 2 is fixedly installed on the lower end face of the external pipe 1, an internal rod 5 is rotatably connected inside the external pipe 1, a cushion rubber sheet 3 wraps the position, close to the upper end, of the annular outer surface of the internal rod 5, an internal nut 4 is rotatably connected to the position, close to the upper end, of the annular outer surface of the internal rod 5, an inclined plane through groove 7 is formed in the middle position inside the inclined plane connecting disc 2, an internal through groove 9 is formed in the middle position inside the internal rod 5, and a plurality of communicating grooves 10 are formed in the position, around the internal through groove 9, inside the internal rod 5; a plurality of oil outlet holes 12 are formed in the annular outer surface of the built-in rod 5, and a plurality of oil accommodating grooves 11 are formed in the communicating groove 10 close to the lower end;

when carrying out lubrication treatment to built-in pole 5, outside personnel directly to the inside lubricating oil that pours into of inclined plane connection pad 2, lubricating oil pours into 2 inside backs of inclined plane connection pad, just carry built-in logical groove 9 inside, be linked together with intercommunication groove 10 inside because of built-in logical groove 9, so lubricating oil is carried inside intercommunication groove 10, rethread oil outlet 12 is carried out lubricating oil, unnecessary lubricating oil is carried and is put 11 insidely of oil groove, it sets up to the inclined plane to put 11 inner walls of oil groove, so put oil groove 11 and have better oil storage capacity, avoid lubricating oil to cause the waste, and simultaneously, can also make the even flow of lubricating oil fall to built-in pole 5 annular surface, accomplish the lubrication action between built-in pole 5 and external pipe 1.

A limiting multi-surface block 13 is fixedly mounted on the upper end surface of the internal rod 5, an external nut 14 is movably connected above the internal rod 5, internal threads 15 are formed in the inner wall of the external nut 14, and inclined surface contact grooves 8 are formed in the positions of the peripheral corners of the inner wall of the external nut 14;

when screwing up the rotation between external nut 14 and the built-in pole 5, outside personnel accessible is injectd the many face piece 13 and is contradicted the limited alignment effect between the groove 8 with the inclined plane, and the messenger is injectd many face piece 13 and is passed inside the inclined plane conflict groove 8, and after passing, just can make and effectively aim at between external nut 14 and the built-in pole 5, the installation effect of the external personnel of being convenient for to external nut 14.

The limiting multi-surface block 13 is a four-surface block, and the four peripheral angular positions of the limiting multi-surface block 13 are in embedded connection between the inclined surface interference grooves 8;

the limiting multi-surface blocks 13 can be directly inserted into the inclined interference grooves 8.

The internal thread 15 corresponds to the external thread 6, and the external nut 14 is in threaded connection with the internal rod 5;

the external nut 14 is fixedly mounted on the annular outer surface of the internal rod 5 when rotated.

The oil outlet 12 is communicated with the inside of the communicating groove 10, and the inner surfaces of both sides of the oil accommodating groove 11 are inclined surfaces;

the oil receiving groove 11 has a good oil storage capacity.

The inclined through groove 7 is communicated with the inside of the built-in through groove 9, the built-in screw cap 4 is in threaded connection with the built-in rod 5, and the buffer rubber sheet 3 is positioned between the built-in screw cap 4 and the external pipe 1;

when the built-in screw cap 4 is rotated, the connection between the built-in rods 5 can be effectively completed.

The utility model provides a double-pipe screw's theory of operation as follows:

when the internal rod 5 is lubricated, external personnel directly inject lubricating oil into the inclined plane connecting disc 2, after the lubricating oil is injected into the inclined plane connecting disc 2, the lubricating oil is conveyed into the internal through groove 9, the internal through groove 9 is communicated with the inside of the communicating groove 10, the lubricating oil is conveyed into the communicating groove 10 and then conveyed out through the oil outlet hole 12, redundant lubricating oil is conveyed into the oil accommodating groove 11, the inner wall of the oil accommodating groove 11 is set to be an inclined plane, so the oil accommodating groove 11 has better oil storage capacity, waste caused by the lubricating oil is avoided, meanwhile, the lubricating oil can uniformly flow to the annular outer surface of the internal rod 5, and the lubricating effect between the internal rod 5 and the external pipe 1 is completed;

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a double-pipe screw, its characterized in that, includes external pipe and built-in pole, terminal surface fixed mounting has the inclined plane connection pad under the external pipe, external pipe rotates inside and is connected with built-in pole, the annular surface of built-in pole is close to upper end position department parcel and has the cushion rubber piece, the annular surface of built-in pole is close to upper end position department and rotates and be connected with built-in nut, the inside intermediate position department of inclined plane connection pad has seted up the inclined plane and has led to the groove, the inside intermediate position department of built-in pole has seted up built-in logical groove, the inside position department all around that is located built-in logical groove of built-in pole has seted up a plurality of intercommunication groove.

2. The double-barreled screw of claim 1, wherein: a plurality of oil outlet holes are formed in the annular outer surface of the built-in rod, and a plurality of oil containing grooves are formed in the positions, close to the lower end, of the inner portions of the communicating grooves.

3. The double-barreled screw of claim 1, wherein: the limiting multi-face block is fixedly mounted on the upper end face of the built-in rod, an external nut is movably connected above the built-in rod, internal threads are formed in the inner wall of the external nut, and inclined plane contact grooves are formed in the positions of the four peripheral corners of the inner wall of the external nut.

4. The double-barreled screw of claim 3, wherein: the limiting multi-surface block is a four-surface block, and the four peripheral angular positions of the limiting multi-surface block are in embedded connection between the inclined surface interference grooves.

5. The double-barreled screw of claim 3, wherein: the internal thread corresponds to the external thread, and the external nut is in threaded connection with the internal rod.

6. The double-barreled screw of claim 2, wherein: the oil outlet is communicated with the inside of the communicating groove, and the inner surfaces of two sides of the oil accommodating groove are inclined planes.

7. The double-barreled screw of claim 1, wherein: the inclined plane through groove is communicated with the inside of the built-in through groove, the built-in nut is in threaded connection with the built-in rod, and the buffer rubber sheet is located between the built-in nut and the external pipe.