TWM511563U - Rotating prevention retractable rod - Google Patents

Description

Anti-rotation rod

The present invention relates to a telescopic rod, in particular to an anti-rotation positioning telescopic rod which is telescopically stretched in a linear sliding manner and provided with multiple fixed structures to enable positioning and anti-rotation between the tubes.

Telescopic rods are very common in the market, and they can form an elongated or shortened work type according to different use distances, thereby increasing the convenience of use. The application of the telescopic rod is quite extensive, and it can be used to provide a connection tool, a camera, a mobile phone, a flashlight, etc., or as a support rod for curtains, curtains, shower curtains, etc., or for other purposes. .

Generally, most of the telescopic rods include at least two or more tubes, and the tubes of each of the two adjacent sleeves are one large and one small, and the inner and outer tubes are matched. In the current design of most telescopic rods on the market, if the telescopic rod is to be elongated or shortened, the two adjacent tubes are forced to rotate relative to each other, and then the friction between the two tubes is used to complete the positioning between the two tubes. However, the two adjacent pipe members are fixed by frictional abutment of the pipe wall surface, which tends to cause looseness between the two pipe members, so that the telescopic rod cannot maintain the state of elongation or shortening for a long time, and the operation is relatively unstable. And practicality.

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide an anti-rotation positioning telescopic rod which is telescopically stretched in a linear sliding manner and provided with multiple fixed structures to provide a positioning anti-rotation function between the tubes.

According to the purpose of the present invention, an anti-rotation rod is provided, which comprises: a sleeve, which is a hollow rod body, the sleeve is provided with a fitting portion, and a positioning hole is respectively arranged at a relative linear position of the peripheral wall of the sleeve. And at least one telescopic tube is a hollow rod body, the telescopic tube is connected to the sleeve, and the telescopic tube is movable axially to be hidden in the sleeve or protruded outside, and the outer surface of the extension tube is a guiding portion is provided for fitting with the fitting portion, and a gasket is arranged to abut against the inner wall of the sleeve, and a relatively straight position of the peripheral wall of the lower portion of the telescopic tube is further provided with a through hole and a lower portion of the telescopic tube The inner system is provided with a spring piece, and one of the two protrusions on the two sides of the elastic piece is respectively engaged with each of the through holes, and each of the protrusions is movably correspondingly penetrated and engaged with each of the positioning holes.

Preferably, the elastic piece is, for example, a U-shaped elastic piece, and the convex piece is disposed outwardly on the outer sides of the two clamping arms.

Preferably, the protrusion of the elastic piece penetrates the top end of the positioning hole and is provided with an inclined surface.

Preferably, the gasket comprises a convex granule, and the telescopic tube is provided with a through hole, and the gasket is inserted into the outer surface of the telescopic tube through the convex portion and the through hole.

Preferably, the fitting portion of the sleeve is a convex member of the inner surface bulging, and the guiding portion of the telescopic tube is a fitting portion corresponding to the fitting groove rail, and the telescopic tube is disposed on the inner surface of the opposite guiding portion Then corresponding to the formation of ridges.

In the above, the telescopic tube can provide another telescopic tube to be sleeved therein, and the other telescopic tube can be moved axially to be hidden in the telescopic tube or protruded outside, and the outer surface of the other telescopic tube is grooved. The guiding portion of the rail is fitted with the rib of the inner surface of the telescopic tube, and the gasket of the outer surface of the other telescopic tube is abutted against the inner wall of the telescopic tube.

Preferably, the fitting portion of the sleeve is a groove rail whose inner surface is concave, and the guiding portion of the telescopic tube is a fitting portion corresponding to the fitting convex strip, and the telescopic tube is disposed opposite to the guiding portion. The surface corresponds to the groove track.

In the above, the telescopic tube can provide another telescopic tube in the sleeve, The other telescopic tube can be axially moved to be hidden in the telescopic tube or protruded outside, and the guiding portion of the outer surface of the other telescopic tube is embedded with the groove rail on the inner surface of the telescopic tube. And the gasket of the outer surface of the other telescopic tube is abutted against the inner wall of the telescopic tube.

Preferably, the relative linear positions of the upper peripheral wall of the telescopic tube are respectively provided with a positioning hole, and the protrusions of the elastic piece of the other telescopic tube respectively movably correspond to the positioning holes of the telescopic tube.

Preferably, the outer peripheral wall of the telescopic tube is provided with a recessed portion recessed into the tube, and the uppermost end of the recessed portion has a horizontal height higher than or equal to the uppermost horizontal level of the through hole of the telescopic tube.

As described above, the anti-rotation rod of the present invention provides a user to linearly push and pull adjacent pipe members to be axially displaced for expansion and contraction, and each of the telescopic tubes is further provided with a spring piece, a gasket, and a groove. The guiding portion of the rail and the rib can ensure the positioning and anti-rotation effect between the tubes through the elastic piece, the spacer and the guiding portion, and the fixing structure of the multiple arrangement allows the user to use the telescopic rod without Worried that the telescopic rod cannot maintain its elongation or shortened state due to the looseness of the pipe.

10‧‧‧ casing

11‧‧‧Mate

12, 26‧‧‧ positioning holes

20, 30‧‧‧ telescopic tube

21, 31‧‧‧ Guidance Department

22, 32‧‧‧ shims

221, 321‧‧ ‧ convex

23, 33‧‧‧through holes

24, 34‧‧ ‧ shrapnel

241, 341‧‧ ‧ bumps

2411‧‧‧ sloped surface

25, 35‧‧‧ through hole

27‧‧‧Depression

Fig. 1 is a first schematic view showing a first embodiment of the anti-rotation rod of the present invention.

Fig. 2 is a second schematic view of the first embodiment of the anti-rotation rod of the present invention.

Fig. 3 is a third schematic view of the first embodiment of the anti-rotation rod of the present invention.

Fig. 4 is a schematic view showing a second embodiment of the anti-rotation rod of the present invention.

Fig. 5 is a schematic view showing a third embodiment of the anti-rotation rod of the present invention.

In order for the examiner to understand the technical characteristics, content and advantages of the creation and the effects that can be achieved, the author will cooperate with the drawings and express the examples. The details are as follows, and the schematics used therein are for the purpose of illustration and supplementary instructions. They are not necessarily true proportions and precise configurations after the implementation of the creation. Therefore, the proportions and configurations of the attached drawings should not be used. The interpretation of the relationship and the limitation of the scope of the author's actual implementation are described first.

Please refer to FIG. 1 to FIG. 3 , which are respectively a first schematic diagram, a second schematic diagram and a third schematic diagram of the first embodiment of the anti-rotation rod of the present invention. The anti-rotation rod may include a sleeve 10, a telescopic tube 20 and a telescopic tube 30. The number of the telescopic tubes may not be limited to two, and one or more than two telescopic tubes may be used to cover the sleeve 10 as needed. However, the description herein is only one of the embodiments, and should not be limited thereto.

The sleeve 10 is a hollow rod body, and is used as a largest and outermost outer tube. The sleeve 10 is provided with a fitting portion 11 , and a positioning hole 12 is respectively disposed at a relatively straight position of the upper peripheral wall of the sleeve 10 . In the first embodiment, the fitting portion 11 is a convex member in which the inner surface of the sleeve 10 is raised.

The telescopic tube 20 is a hollow rod body and is disposed between the sleeve 10 and the bellows 30. The telescoping tube 20 is coupled to the sleeve 10, and the telescoping tube 20 is movable axially to be hidden in the sleeve 10 or exposed. The outer surface of the telescopic tube 20 is provided with a guiding portion 21. In the first embodiment, the guiding portion 21 is designed as a groove rail, and the telescopic tube 20 is formed correspondingly on the inner surface of the oppositely disposed guiding portion 21. Ribs. The guiding portion 21 can be engaged with the fitting portion 11 to achieve the positioning function, so that the telescopic tube 20 does not shift relative to the sleeve 10, and the extension tube 20 can be embedded according to the guiding portion 21 and the fitting portion 11. The cooperation is a track to perform telescopic sliding with respect to the casing 10. The outer surface of the telescopic tube 20 is further provided with a spacer 22. Further, the spacer 22 includes a convex 221, and the telescopic tube 20 is provided with a through hole 25, and the spacer 22 is transmitted through the phase of the convex 221 and the through hole 25. The fitting is to be bonded to the outer surface of the telescopic tube 20. The gasket 22 on the telescopic tube 20 can be used to abut against the inner wall of the sleeve 10 and pass through the gasket 22 against the wall surface of the sleeve 10, When the telescopic tube 20 is extended or shortened in the sleeve 10, the telescopic tube 20 will not be loosened from the sleeve 10, and can be maintained in an extended or shortened state to achieve positioning and anti-rotation effects. A positioning hole 26 is respectively disposed at a relatively straight position of the upper peripheral wall of the telescopic tube 20, and a through hole 23 is respectively disposed at a relatively linear position of the lower peripheral wall, and a spring piece 24 is further disposed in the lower portion of the extension tube 20, and the two sides of the elastic piece 24 are respectively A bump 241 is disposed, and each of the bumps 241 is fitted to each of the through holes 23. The elastic piece 24 may be a U-shaped elastic piece, and the convex piece 241 is disposed outwardly on the outer sides of the two clamping arms, as shown in FIG. 3 . When the bump 241 is slightly displaced relative to the through hole 23 toward the inner tube of the telescopic tube 20, and the elastic piece 24 is compressed, the telescopic tube 20 will be slidable relative to the sleeve 10; and when each of the protrusions 241 respectively penetrates When the elastic recovery of the elastic piece 24 is achieved, the elastic tube 20 can be maintained in an extended state, and the positioning of the elastic piece 24 can achieve better positioning and anti-rotation effects. Preferably, as shown in the second embodiment of FIG. 4, the top end of each of the projections 241 of the elastic piece 24 is further provided with a sleeve 241 for rotating the sleeve 241 and shrinking the projection 241 back to the sleeve 10. The inclined surface 2411 inside. Further, the outer peripheral wall of the bellows 20 is provided with a recessed portion 27 recessed into the tube, and the uppermost end of the recessed portion 27 has a horizontal height higher than or equal to the uppermost horizontal level of the through hole 23 of the bellows 20.

The telescopic tube 30 is a hollow rod body having the same components as the telescopic tube 20, and the telescopic tube 30 includes a guiding portion 31 which is a groove rail, a gasket 32 and its convex 321 and a through hole. 33. The elastic piece 34 and its protrusion 341, and the through hole 35, or the telescopic tube 30 may further include a positioning hole and a recess. The extension tube 30 is coupled to the extension tube 20, and the extension tube 30 is movable axially to be hidden in the extension tube 20 or exposed. The telescopic tube 30 is sleeved in the telescopic tube 20 in the same manner as the telescopic tube 20 is sleeved in the sleeve 10. The guiding portion 31 on the outer surface of the telescopic tube 30 can be engaged with the convex strip on the inner surface of the telescopic tube 20 to expand and contract. The gasket 32 on the outer surface of the tube 30 can abut against the inner wall of the telescopic tube 20, and the protrusions 341 of the elastic piece 34 of the extension tube 30 can respectively survive. The positioning holes 26 that are engaged with the telescopic tube 20 are movably correspondingly penetrated. When the telescopic tube 30 slides in the tube of the telescopic tube 20, the recessed portion 27 of the extension tube 20 can have a function of limiting the position to prevent the lower end of the extension tube 30 from colliding with the elastic piece disposed inside the extension tube 20. 24 caused damage to the components.

In addition, please refer to FIG. 5, which is a schematic diagram of a third embodiment of the anti-rotation rod of the present invention. The structure of the anti-rotation rod of the third embodiment is similar to that of the first embodiment, except that the fitting portion 11 of the sleeve 10 of the anti-rotation rod of the third embodiment is a recessed groove of the inner surface. The guiding portion 21 of the telescopic tube 20 is a rib. The inner surface of the telescopic tube 20 opposite to the guiding portion 21 is correspondingly formed with a groove rail. The guiding portion 31 of the telescopic tube 30 has the same structure as the telescopic tube 20. . The guiding portion 21 of the outer surface of the telescopic tube 20 is a fitting portion 11 of the groove 10, and the groove portion of the inner surface of the telescopic tube 20 is corresponding to the telescopic tube 30. The outer surface is fitted with the guide portion 31 of the ridge.

In summary, the anti-rotation and telescopic rod of the present invention utilizes the arrangement between the protrusion and the groove rail, so that the tube can be linearly slidable and stretched by means of pushing and pulling, and the telescopic rod is telescopically stretched compared with the conventional telescopic rod, and the system is relatively stable. Will not shake. Moreover, the anti-rotation rod of the present invention further sets the elastic member and the spacer, so that the fixing between the pipe members can be strengthened, so that the pipe member can be effectively positioned when being extended or shortened, so that the pipe member does not rotate during operation. It can be avoided that the pipe is loose and cannot be used effectively.

Looking at the above, it can be seen that under the previous technology, this creation has indeed achieved the desired effect, and it is not easy for people who are familiar with the art to think about it. Moreover, this creation has not been disclosed before the application, and it has Progressive and practical, it has already met the application requirements of the patent, and has filed a patent application according to law. You are requested to approve the application for the creation of this patent to encourage creation.

The embodiments described above are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and It is hereby implemented that the scope of the patents of this creation cannot be limited, that is, the equivalent changes or modifications made by the spirit of this creation should still be covered by the scope of this creation.

10‧‧‧ casing

11‧‧‧Mate

12‧‧‧Positioning holes

20, 30‧‧‧ telescopic tube

21, 31‧‧‧ Guidance Department

22, 32‧‧‧ shims

221, 321‧‧ ‧ convex

23, 33‧‧‧through holes

24, 34‧‧ ‧ shrapnel

241, 341‧‧ ‧ bumps

25, 35‧‧‧ through hole

26‧‧‧Positioning holes

Claims (10)

An anti-rotation rod comprising: a sleeve (10), which is a hollow rod body, a fitting portion (11) is arranged inside the sleeve (10), and a peripheral wall of the sleeve (10) is A positioning hole (12, 26) is respectively disposed at a relative linear position; and at least one telescopic tube (20, 30) is a hollow rod body, the telescopic tube is coupled to the sleeve (10), and the telescopic tube (20) And 30) movable axially to be hidden in the sleeve (10) or exposed to the outside, and the outer surface of the telescopic tube (20, 30) is provided with the fitting portion a guiding portion (21, 31), and a gasket (22, 32) for abutting against an inner wall of the sleeve (10), the relative linear position of the peripheral wall of the lower portion of the telescopic tube (20, 30) A through hole (23, 33) is respectively disposed, and a spring piece (24, 34) is disposed in a lower portion of the telescopic tube (20, 30), and one of the two sides of the elastic piece (24, 34) is respectively provided with a bump Each of the through holes (23, 33) is fitted to each of the through holes (23, 33), and each of the protrusions (241, 341) is movably coupled to each of the positioning holes (12, 26). The anti-rotation rod according to claim 1, wherein the elastic piece (24, 34) is a U-shaped elastic piece, and the convex pieces (241, 341) are respectively disposed on the outer sides of the two clamping arms. The anti-rotation rod according to claim 1 or 2, wherein the protrusions (241, 341) of the elastic piece (24, 34) are provided with inclined faces at the top end of the positioning holes (12, 26) ( 2411). The anti-rotation rod according to claim 1, wherein the spacer (22, 32) comprises a convex piece (221, 321), and the telescopic tube (20, 30) is provided with a through hole (25, 35). The spacers (223, 2) are fitted to the through holes (25, 35) through the protrusions (221, 321) to be bonded to the outer surfaces of the extension tubes (20, 30). The anti-rotation rod according to claim 1, wherein the fitting portion (11) of the sleeve (10) is a convex member having an inner surface bulging, and the guiding portion of the telescopic tube (20, 30) 21, 31) is a groove rail corresponding to the fitting portion (11), and the telescopic tube (20, 30) correspondingly forms a convex strip on the inner surface of the opposite guiding portion (21, 31). . The anti-rotation rod according to claim 5, wherein the telescopic tube (20, 30) is provided with another telescopic tube (20, 30) nested therein, and the other telescopic tube (20, 30) is Actively moving axially to be hidden in the telescopic tube (20, 30) or protruding outside, and the other outer surface of the telescopic tube (20, 30) is the guiding portion of the grooved rail (21, 31) ) mating with the ribs on the inner surface of the telescopic tube (20, 30), and the other surface of the outer surface of the telescopic tube (20, 30) is placed against the telescopic tube (20, 30) wall. The anti-rotation rod according to claim 1, wherein the fitting portion (11) of the sleeve (10) is a groove rail whose inner surface is concave, and the guiding portion of the telescopic tube (20, 30) (21, 31) is a rib that can be fitted to the fitting portion (11), and the telescopic tube is formed to correspond to the inner surface of the guide portion (21, 31). The anti-rotation rod according to claim 7, wherein the telescopic tube (20, 30) is provided with another telescopic tube (20, 30) nested therein, and the other of the telescopic tubes (20, 30) is Actively moving axially to be hidden in the telescopic tube (20, 30) or protruding outside, and the other outer surface of the telescopic tube (20, 30) is the guiding portion of the rib (21, 31) Is fitted to the groove rail of the inner surface of the telescopic tube (20, 30), and the other gasket (22, 32) on the outer surface of the telescopic tube (20, 30) is abutted against the telescopic tube (20) , 30) the inner wall. The anti-rotation rod according to claim 6 or 8, wherein the opposite linear positions of the upper peripheral wall of the telescopic tube (20, 30) are respectively provided with a positioning hole (12, 26), and the other of the telescopic tube (20, 30) Each of the protrusions (241, 341) of the elastic piece (24, 34) is movably correspondingly inserted into each of the positioning holes (12, 26) of the telescopic tube (20, 30). The anti-rotation rod according to claim 9, wherein the outer peripheral wall of the telescopic tube (20, 30 is provided with a recessed portion (27) recessed into the tube, and the uppermost end of the recessed portion (27) has a high level At or equal to the uppermost level of the through hole (23, 33) of the telescopic tube (20, 30).