CN216143026U

CN216143026U - Constant-straightness banner telescopic rod

Info

Publication number: CN216143026U
Application number: CN202121753928.9U
Authority: CN
Inventors: 皮继荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-29
Anticipated expiration: 2031-07-29

Abstract

The utility model belongs to the technical field of telescopic rods, and particularly relates to a constant-straightness banner telescopic rod, which comprises an outer pipe and an inner pipe movably sleeved in the outer pipe, wherein the bottom wall of the outer pipe is provided with a plurality of limiting assemblies, each limiting assembly comprises a limiting hole penetrating through the bottom wall of the outer pipe and a limiting bulge arranged on the limiting hole, each limiting bulge penetrates through the bottom wall of the outer pipe and is attached to the inner pipe, and the limiting bulges are controlled to move upwards to press the inner pipe tightly so as to limit the inner pipe to move relative to the outer pipe; through the constant-straightness banner telescopic rod, the straightness of the inner pipe can be guaranteed when the inner pipe extends out of the outer pipe, the inner pipe cannot incline relative to the outer pipe, and even if the inner pipe extends out of the outer pipe for a long distance, the inner pipe and the outer pipe can be kept parallel to each other.

Description

Constant-straightness banner telescopic rod

Technical Field

The utility model belongs to the technical field of telescopic rods, and particularly relates to a constant-straightness banner telescopic rod.

Background

The existing banner has two modes of hanging, the first mode is that banner cloth is stuck on a wall, the operation is troublesome, the banner needs to ascend, and the banner needs to be fixed by adhesive tapes, so the banner is not beautiful; the second method uses a horizontal rod to fix the banner with a clamp. For the second kind, the horizontal rod can be fixed or made to be lifting, wherein the lifting banner changing is simple and convenient, so the use is more and more.

The existing horizontal rod generally adopts segmented transportation and field welding, which is troublesome; or the transportation is carried out in sections, and the connection is carried out by using the external joint on site, but the external joint protrudes out of the outer surface of the rod and is not flat, so that the flatness of the banner is influenced; or the inner joint is adopted, but only one fixing point of the inner joint is arranged, and the inner pipe tends to incline relative to the outer pipe under the action of gravity because a gap exists between the inner pipe and the outer pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a constant-straightness banner telescopic rod, which can ensure the straightness when an inner pipe extends out of an outer pipe, prevent the inner pipe from inclining relative to the outer pipe and keep the inner pipe parallel to the outer pipe even if the inner pipe extends out of the outer pipe for a long distance.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a invariable banner telescopic link of straightness accuracy, includes outer tube, the inside inner tube of activity suit in the outer tube, be provided with the spacing subassembly of a plurality of on the diapire of outer tube, this spacing subassembly is including the spacing hole that link up the outer tube diapire and install the spacing arch on spacing hole, and this spacing arch passes outer tube diapire and laminating inner tube, and the spacing protruding upward movement of control makes it compress tightly the inner tube to the relative outer tube of restriction inner tube removes.

In the technical scheme, the same end face of the inner pipe is limited by more than two limiting assemblies, so that the inner pipe is sleeved in the outer pipe and cannot incline, and the straightness of the inner pipe is ensured; the inner tube remains parallel to the outer tube as the inner tube extends from within the outer tube.

Preferably, the limiting protrusion comprises a screw, the limiting assembly further comprises a thread structure which is matched with the screw to move up and down, and the screw fixing mode is stable and effective.

Preferably, still be provided with T type groove on the outer tube diapire, spacing hole sets up on T type groove, the helicitic texture is including setting up the nut in T type inslot, and the internal thread of this nut is coaxial with spacing hole, and the nut can replace the installation, compares in other modes like the tapping, and the nut has more the practicality.

Preferably, the groove width of the T-shaped groove is smaller than the width of the inner cavity of the outer pipe, so that the inner cavities of the outer pipe on two sides of the T-shaped groove form two sliding grooves; two side walls of the inner pipe extend downwards to form two lower sliding strips, and the lower sliding strips slide in the sliding grooves.

Preferably, the inner tube roof includes the inclined plane and the locking surface at middle part of the both sides tilt up, spacing arch rebound compresses tightly the locking surface, and the skew takes place for the inclined plane can correct the screw rebound in-process.

Preferably, the number of the limiting assemblies is two, the straightness accuracy balance can be realized by the two limiting assemblies, and excessive limiting assemblies are not required to be arranged.

Preferably, the T-shaped groove is provided with an indentation groove, and the indentation groove is convenient for limiting hole drilling.

Preferably, after the inner tube stretches out of the outer tube, the inner tube far away from one end of the outer tube is provided with an extension tube, and the extension tube is arranged to increase the length of the banner expansion rod.

Preferably, the extension pipe has the same structure as the outer pipe, and the same structure is convenient for replacement.

Preferably, after the inner pipe extends out of the outer pipe, a movably mounted lantern ring is arranged at the extending part of the inner pipe, and the outer diameter of the inner pipe is smaller than that of the outer pipe, so that the banner at the position of the inner pipe can generate wrinkles when the banner is hung, and the lantern ring is arranged to support the banner outside the inner pipe and eliminate the wrinkles; the lantern ring can be dismantled, when needs inner tube retraction outer tube inside, it can to dismantle the lantern ring.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a front view of the first embodiment;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an axial cross-sectional view of the first embodiment;

FIG. 4 is a radial cross-sectional view of the first embodiment;

FIG. 5 is a front view of the second embodiment;

FIG. 6 is a front view of the third embodiment;

FIG. 7 is an axial sectional view of a third embodiment;

FIG. 8 is a front view of the fourth embodiment.

In the figure, an outer tube 1, an inner tube 2, an extension tube 3, a nut 4, a screw 5, a collar 6, an inner cavity 11 of the outer tube, a T-shaped groove 12, a sliding cavity 13, a indenting groove 14, an inner tube side wall 21, a lower slide 22, an upper slide 23, an inner tube bottom wall 24, an inner tube top wall 25, a locking surface 241 and an inclined surface 242.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Example 1

Fig. 1-4 show a first embodiment of the present invention, wherein the X-axis direction is the axial direction of the telescopic tube, and the Y-axis direction is the radial direction of the telescopic tube. A constant-straightness banner telescopic rod comprises an inner tube 2 sleeved inside an outer tube 1, wherein a T-shaped groove 12 is formed in the bottom wall 24 of the outer tube, and two limiting holes which are linearly parallel along the X-axis direction are formed in the position, close to the end, in the T-shaped groove 12; the width of the T-shaped groove 12 is smaller than the width of the outer tube inner cavity 11, so that the outer tube inner cavity 11 forms two sliding cavities 13. And a mark folding groove 14 is arranged on the T-shaped groove so as to facilitate the drilling of a limiting hole. The outer tube top wall 25 is provided with the same structure as the outer tube top wall 24 described above.

The two side walls of the inner tube 2 extend upwards and downwards respectively to form two upper sliding strips 23 and two lower sliding strips 22, and the upper sliding strips 23 and the lower sliding strips 22 respectively slide in the corresponding sliding cavities 13; the inner tube bottom wall 24 includes inclined surfaces 242 inclined upward on the left and right sides and a locking surface 241 in the middle.

The nut 4 is installed below the limiting hole, the screw 5 is fixed on the outer tube 1 through the nut 4, the screw 5 penetrates through the limiting hole to enter the inner cavity 11 of the outer tube, the screw 5 moves upwards to contact with the locking surface 241, upward acting force is applied to the inner tube 2 along with continuous upward movement of the screw 5, the top wall 25 of the inner tube is in contact with the T-shaped groove 12 of the top wall of the outer tube, the inner tube 2 is limited by stress and cannot move along the X-axis direction and rotate along the Y-axis direction relative to the outer tube 1, and therefore the outer tube 1 cannot stretch out. The inner pipe 2 is not inclined relative to the outer pipe 1 by the limitation of the two screws 5, and the inner pipe 2 is balanced with the outer pipe 1, so when the inner pipe 2 extends outwards, the inner pipe 2 of the banner expansion rod with constant straightness is parallel to the outer pipe 1 by the limitation of the two screws 5, and the straightness is constant.

Example 2

Fig. 5 shows a second embodiment of the present invention, in which, in the embodiment 1, when the inner pipe 2 is extended out of the outer pipe 1, a movably installed collar 6 is provided on the inner pipe 2 to enlarge the outer diameter of the inner pipe 2 so that the outer diameter of the inner pipe 2 is maintained the same as that of the outer pipe 1.

Example 3

Fig. 6-7 show a third embodiment of the present invention, in which an extension pipe 3 is provided on the basis of embodiment 1, and the extension pipe 3 is provided at the end of the inner pipe that is far from the outer pipe 2 after the inner pipe extends out of the outer pipe 2. The extension pipe 3 has the same structure as the outer pipe 1. When the stretching is not needed, the outer tube 1 is attached to the stretching tube 3, the inner tube 2 is retracted between the outer tube 1 and the stretching tube 3, and the outer diameter of the whole banner stretching rod with constant straightness is the same.

Example 4

Fig. 8 shows a fourth embodiment of the present invention, which combines embodiment 2 and embodiment 3, and installs a collar 6 and an extension pipe 3, that is, a constant straightness banner expansion pole comprising an outer pipe 1, an inner pipe 2, an extension pipe 3, and a collar 6.

When in use, the inner pipe 2 extends out of the outer pipe 1, the screw 5 is locked to limit the movement of the inner pipe 2, the part of the inner pipe 2 extending out of the outer pipe 1 is sleeved with the lantern ring 6, and then the extension pipe 3 is fixed with the inner pipe 2.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a invariable banner telescopic link of straightness accuracy which characterized in that: including outer tube, movable sleeve dress at the inside inner tube of outer tube, be provided with the spacing subassembly of a plurality of on the diapire of outer tube, this spacing subassembly is including lining up the spacing hole of outer tube diapire and installing spacing arch on spacing hole, and this spacing arch passes outer tube diapire and laminating inner tube, and the spacing protruding upward movement of control makes it compress tightly the inner tube to the relative outer tube of restriction inner tube removes.

2. A constant straightness banner telescoping pole as claimed in claim 1, wherein: the limiting protrusion comprises a screw, and the limiting assembly further comprises a thread structure which is matched with the screw to move up and down.

3. A constant straightness banner telescoping pole as claimed in claim 2, wherein: still be provided with T type groove on the outer tube diapire, spacing hole sets up on T type groove, the helicitic texture is including setting up the nut in T type groove, and the internal thread and the spacing hole of this nut are coaxial.

4. A constant straightness banner telescoping pole as claimed in claim 3, wherein: the groove width of the T-shaped groove is smaller than the width of the inner cavity of the outer pipe, so that two sliding grooves are formed in the inner cavity of the outer pipe on two sides of the T-shaped groove; two side walls of the inner pipe extend downwards to form two lower sliding strips, and the lower sliding strips slide in the sliding grooves.

5. A constant straightness banner telescoping pole as claimed in claim 1, wherein: the inner tube roof includes the inclined plane of left and right sides tilt up and the locking surface at middle part, spacing arch rebound compresses tightly the locking surface.

6. A constant straightness banner telescoping pole as claimed in claim 1, wherein: the number of the limiting assemblies is two.

7. A constant straightness banner telescoping pole as claimed in claim 1, wherein: and the T-shaped groove is provided with a marking groove.

8. A constant straightness banner telescoping pole as claimed in claim 1, wherein: after the inner pipe stretches out of the outer pipe, the inner pipe far away from one end of the outer pipe is provided with an extension pipe.

9. A constant straightness banner telescoping pole as claimed in claim 8, wherein: the extension pipe has the same structure as the outer pipe.

10. A constant straightness banner telescoping pole as claimed in claims 1 to 9, wherein: after the inner pipe extends out of the outer pipe, a movably mounted lantern ring is arranged at the extending part of the inner pipe.