CN205154834U - limiting sleeve assembly and floor fan - Google Patents

Abstract

The utility model provides a position-limiting sleeve assembly and a floor fan. The limit sleeve assembly includes an inner tube and a limit sleeve arranged on the inner tube, a fixing part is arranged at the end of the inner tube, the limit sleeve includes an inner ring part and an outer ring part, and the inner ring part is provided with The clamping part adapted to the shape of the fixing part, the outer ring part and the outer tube and the inner connection of the outer tube realize limit fit. The technical scheme of the utility model can effectively solve the problem of cumbersome assembly of the limiting bushing assembly in the prior art.

Description

Limiting sleeve assembly and floor fan

technical field

The utility model relates to the technical field of pipe fittings, in particular to a position-limiting sleeve assembly and a floor fan.

Background technique

As shown in FIG. 1 , it is a limiting bushing assembly in the prior art. When assembling the limit sleeve 2' tube assembly, align the limit sleeve 2' with the pipe end of the inner tube 1', align the installation holes on the limit sleeve 2' with the installation holes on the inner tube 1', and then use The screw 3' fastens the limit sleeve 2' and the inner tube 1'.

As shown in Figure 2, when in use, insert the above-mentioned inner tube 1' together with the stop sleeve 2' into the outer tube 5', and then use the inner connection 4' of the outer tube to achieve sealing, so that the inner tube 1' can be positioned relative to the outer tube. 5' movement without disengagement.

It can be seen that in the process of installing the limit sleeve 2' on the inner tube 1', it is necessary to align the installation holes on the limit sleeve 2' and the installation holes on the inner tube 1', and to tighten the screws 3'. Solid, low assembly efficiency. And in the follow-up use process, when the inner tube 1' or the outer tube 5' are deformed, the screw 3' will contact the outer tube 5', and the friction between the metals will generate great noise when twitching.

Utility model content

The main purpose of the utility model is to provide a position-limiting sleeve assembly and a floor fan, so as to solve the problem of cumbersome assembly of the position-limiting sleeve assembly in the prior art.

In order to achieve the above object, the utility model provides a spacer sleeve assembly, which includes an inner tube and a spacer sleeve arranged on the inner tube, a fixing part is provided at the end of the inner tube, and the spacer sleeve includes an inner ring part and the outer ring part, and the inner ring part is provided with a clamping part adapted to the shape of the fixed part, and the outer ring part is inwardly connected with the outer tube and the outer tube to realize position-limiting fit.

Further, an opening is opened on the inner ring part, and an opening is also provided on the outer ring part at a position corresponding to the inner ring part.

Further, the inner ring part and the outer ring part are connected by positioning ribs and positioning grooves.

Further, positioning ribs are provided on the outer wall of the inner ring part, and positioning grooves are provided on the inner wall of the outer ring part.

Further, the inner ring part and the outer ring part are integrally provided.

Further, the fixing part is an annular recess provided on the inner tube, and the engaging part is an annular rib provided on the inner ring.

Further, the fixing part is an annular convex part provided on the inner tube, and the engaging part is an annular groove provided on the inner ring part.

The utility model also provides a floor fan, which includes a spacer sleeve assembly, which is the above-mentioned spacer sleeve assembly.

Applying the technical solution of the utility model, the spacer sleeve assembly includes an inner tube and a spacer sleeve arranged on the inner tube. The end of the inner tube is provided with a fixed part, and the limit sleeve includes an inner ring part and an outer ring part. The inner ring part is provided with a clamping part adapted to the shape of the fixed part, and the outer ring part is connected to the outer tube and the outer tube. Connect to achieve limit fit. When assembling the limit sleeve on the inner tube, prop up the limit sleeve, put the limit sleeve on the pipe end of the inner tube, and move the limit sleeve to the fixed part, so that the clamping part on the inner ring part and the inner tube The fixing part on the upper part is clamped and fixed. In this way, the limit sleeve can be conveniently installed on the inner tube, thereby improving the assembly efficiency. Since the limit sleeve and the inner tube are no longer connected by screws, as shown in the figure, in the subsequent use process, even if the inner tube or the outer tube is deformed, there will be no screw scratching the outer tube during the process of pulling the inner tube. Noise is generated on the inner wall of the pipe.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows the schematic diagram of the combination of the inner tube and the limit sleeve of the limit sleeve assembly of the prior art;

Fig. 2 shows a schematic diagram of the installation structure of the limit sleeve assembly of Fig. 1;

Fig. 3 shows a schematic structural view of the inner tube of an embodiment of the limiting sleeve assembly of the present invention;

Fig. 4 shows a schematic structural view of a spacer of an embodiment of a spacer sleeve assembly of the present invention;

Fig. 5 shows a schematic diagram of the installation structure of the limit sleeve and the inner tube of the embodiment of the limit sleeve assembly of the present invention;

Fig. 6 shows a schematic diagram of the installation structure of an embodiment of the limiting sleeve assembly of the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

1', inner tube; 2', limit sleeve; 3', screw; 4', inner connection of outer tube; 5', outer tube; 10, inner tube; 11, fixed part; 20, limit sleeve; 21, inner ring part; 211, clamping part; 212, positioning rib; 22, outer ring part; 221, positioning groove.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

3 to 5 show the limiting sleeve assembly of this embodiment, which includes an inner tube 10 and a limiting sleeve 20 disposed on the inner tube 10 . The end of the inner tube 10 is provided with a fixing part 11, and the spacer sleeve 20 includes an inner ring part 21 and an outer ring part 22. The inner ring part 21 is provided with a snap-fitting part 211 that fits the shape of the fixing part 11. The ring part 22 realizes position-limiting cooperation with the outer tube 5' and the inner connection 4' of the outer tube. When assembling the limit sleeve 20 on the inner tube 10, prop up the limit sleeve 20, put the limit sleeve 20 on the pipe end of the inner tube 10, and move the limit sleeve 20 to the fixed part 11, so that the inner ring The clamping part 211 on the part 21 is clamped and fixed with the fixing part 11 on the inner tube 10 . In this way, the spacer sleeve 20 can be conveniently installed on the inner tube 10 to improve assembly efficiency. Since the limiting sleeve 20 and the inner tube 10 are no longer connected by screws, as shown in FIG. There will be no screw scratching the inner wall of the outer tube 5' to generate noise.

As shown in FIG. 4 , in this embodiment, an opening is opened on the inner ring part 21 , and an opening is also provided on the outer ring part 22 at a position corresponding to the inner ring part 21 . Openings on the inner ring portion 21 and the outer ring portion 22 can facilitate propping up the spacer sleeve 20 , and further facilitate the sleeve 20 to be placed on the fixing portion 11 on the inner tube 10 .

In this embodiment, the inner ring part 21 and the outer ring part 22 are connected by positioning ribs 212 and positioning grooves 221 . In order to avoid noise during the pumping process of the inner tube 10, the outer ring part 22 should be made of a material with low hardness. The inner ring part 21 should be made of a material with higher strength because it has to withstand a relatively large force. As shown in FIG. 4 , in this embodiment, optionally, a positioning rib 212 is provided on the outer wall of the inner ring part 21 , and a positioning groove 221 is provided on the inner wall of the outer ring part 22 .

In an embodiment not shown in the figure, the inner ring part 21 and the outer ring part 22 may also be provided integrally. The advantage of such arrangement lies in the convenience of processing and manufacturing.

As shown in FIG. 3 , in this embodiment, the fixing portion 11 is an annular concave portion defined on the inner tube 10 , and the engaging portion 211 is an annular rib disposed on the inner ring portion 21 . Setting the fixed part 11 as an annular concave part is more convenient for processing, and only need to push the limit sleeve 20 into the fixed part 11 during installation, and the annular rib on the inner ring part 21 can be embedded in the annular concave part, which is convenient for assembly.

In an embodiment not shown in the figure, the fixing part 11 may also be set as an annular protrusion on the inner tube 10 , and the engaging part 211 may be set as an annular groove on the inner ring part 21 . In this way, the positioning and installation of the spacer sleeve 20 and the inner tube 10 can also be realized.

The utility model also includes a floor fan (not shown in the figure), which includes a position-limiting sleeve assembly, which is the above-mentioned position-limiting sleeve assembly. The floor fan does not generate noise when the height of the fan is adjusted, and the height adjustment device has a longer service life.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. A limit sleeve assembly, comprising an inner tube (10) and a limit sleeve (20) arranged on the inner tube (10), characterized in that, the end of the inner tube (10) is provided with There is a fixed part (11), the limit sleeve (20) includes an inner ring part (21) and an outer ring part (22), and the inner ring part (21) is provided with a Adapted clamping part (211), the outer ring part (22) is inwardly connected with the outer tube and the outer tube to realize position-limiting fit. 2. The limiting bushing assembly according to claim 1, characterized in that, the inner ring part (21) is provided with an opening, and the outer ring part (22) is connected with the inner ring part (21) Openings are also provided at corresponding positions. 3. The limit sleeve assembly according to claim 1, characterized in that, the positioning rib (212) and the positioning groove ( 221) Connect. 4. The limit sleeve assembly according to claim 3, characterized in that, the positioning ribs (212) are provided on the outer wall of the inner ring part (21), and the outer wall of the outer ring part (22) The positioning groove (221) is provided on the inner wall. 5. The position-limiting sleeve assembly according to claim 1, characterized in that, the inner ring part (21) and the outer ring part (22) are integrally provided. 6. The limit sleeve assembly according to claim 1, characterized in that, the fixing part (11) is an annular recess provided on the inner tube (10), and the clamping part (211) is An annular convex rib arranged on the inner ring portion (21). 7. The limit sleeve assembly according to claim 1, characterized in that, the fixing part (11) is an annular convex part provided on the inner tube (10), and the clamping part (211) It is an annular groove opened on the inner ring part (21). 8. A floor fan, comprising a position-limiting sleeve assembly, characterized in that, the position-limiting sleeve assembly is the position-limiting sleeve assembly described in any one of claims 1-7.