Rotary mechanism capable of bending dust collector pipe

Abstract

The utility model discloses a rotating mechanism of a bendable dust collector pipe. The rotating mechanism comprises a first rotating support, a second rotating support and a rotating shaft assembly. The first rotating support comprises a first rotating cylinder part and a second rotating cylinder part, and a limiting notch is formed in the inner wall of the second rotating cylinder part; the second rotating bracket comprises a third rotating drum part; the rotating shaft assembly penetrates through a channel formed by the first rotating cylinder part, the third rotating cylinder part and the second rotating cylinder part in a matched mode, the rotating shaft assembly and the third rotating cylinder part are connected in a linkage and matched mode, and limiting blocking ribs arranged in the limiting notches are further arranged on the rotating shaft assembly. The limiting blocking ribs are matched with the two side walls of the limiting notches so that the first rotating support and the second rotating support can be restrained in the horizontal state and the state that the first rotating support and the second rotating support deflect by 110-120 degrees towards one side. The dust collector pipe can be limited to be in a 110-120-degree bending state through the matching between the rotating shaft assembly and the rotating support, so that dust collection and cleaning at places such as the bottom of a bed and the bottom of a table are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaner pipes, in particular to a rotating mechanism of a bendable vacuum cleaner pipe. Background Art

[0002] A household vacuum cleaner generally comprises a vacuum cleaner body, a vacuum tube and a floor brush, wherein the vacuum cleaner tube is a pipe for connecting the floor brush and the vacuum cleaner body into one body, so that dust on the ground can enter the vacuum cleaner body from the floor brush and the vacuum cleaner tube.

[0003] Normally, the vacuum cleaner tube has a longer length so that the user can move the floor brush to a higher or deeper position for easy use. However, since the length of the vacuum cleaner tube is not conducive to storage, some bendable vacuum cleaner tubes have appeared, such as a vacuum cleaner and its bendable connecting tube with publication number CN209186556U, which include upper and lower joint tubes that can be bent together and brought close together, thereby reducing the length, facilitating storage, and improving user experience. However, the rotating mechanism in the patent document can only bend the vacuum cleaner tube to a folded state once to reduce the volume and save space, and cannot be bent at a certain angle to clean difficult-to-clean locations such as under the bed and under the table during the vacuuming process, so there is room for improvement. Utility Model Content

[0004] The utility model aims to overcome the defects in the prior art and provides a rotating mechanism for a bendable vacuum cleaner pipe, which can limit the vacuum cleaner pipe to be bent at 110°-120° through the cooperation between the rotating shaft assembly and the rotating bracket, so as to facilitate vacuuming and cleaning under the bed, under the table and the like.

[0005] To achieve the above-mentioned purpose, the utility model provides a rotating mechanism of a bendable vacuum cleaner pipe, which is arranged between adjacent pipe sections of the vacuum cleaner pipe to realize the rotation and bending between the adjacent pipe sections, and the rotating mechanism includes a first rotating bracket and a second rotating bracket respectively arranged between the opposite ends of the adjacent pipe sections, and a rotating shaft assembly penetrating the first rotating bracket and the second rotating bracket;

[0006] The first rotating bracket comprises a first rotating cylinder part and a second rotating cylinder part which are coaxially arranged and spaced apart, and a limiting notch is configured on the inner wall of the second rotating cylinder part;

[0007] The second rotating bracket includes a third rotating drum portion located between the first rotating drum portion and the second rotating drum portion and arranged coaxially with the first rotating drum portion;

[0008] The rotating shaft assembly is arranged in the channel formed by the cooperation of the first rotating cylinder part, the third rotating cylinder part and the second rotating cylinder part. Wherein, the shaft body part of the rotating shaft assembly located in the third rotating cylinder part is linked and cooperatively connected with the third rotating cylinder part. A limiting rib is arranged on the shaft body part of the rotating shaft assembly located in the second rotating cylinder part and placed in the limiting notch. By the cooperation of the limiting rib and the two side walls of the limiting notch, the first rotating bracket and the second rotating bracket can be constrained in a horizontal state and a state of deflecting 110°-120° to one side.

[0009] It is further set that: the rotating shaft assembly includes a first rotating shaft arranged in the channel formed by the cooperation of the first rotating cylinder part and the third rotating cylinder part, and a second rotating shaft arranged in the second rotating cylinder part and linked with the first rotating shaft. The limiting rib is arranged on the outer wall of the second rotating shaft.

[0010] It is further set that: the first rotating shaft is a three-layer stepped column structure with a gradually decreasing diameter, including a first column body located in the first rotating cylinder part, a second column body located in the third rotating cylinder part, a third column body extending into the second rotating cylinder part, a first stepped surface located between the first column body and the second column body, and a second stepped surface located between the second column body and the third column body;

[0011] A first retaining ring for cooperating with the first stepped surface is arranged at the port of the first rotating cylinder part facing the second rotating cylinder part, and a second retaining ring for cooperating with the second stepped surface is arranged at the port of the third rotating cylinder part facing the second rotating cylinder part.

[0012] It is further set that: a linkage rib is arranged on the outer wall of the second column body, and a linkage slot corresponding to and cooperating with the linkage rib is arranged on the inner wall of the third rotating cylinder part.

[0013] It is further set that: a third retaining ring for restricting the second rotating shaft from disengaging is arranged at the port of the second rotating cylinder part facing the first rotating cylinder part.

[0014] It is further set that: a protruding linkage head is arranged in the middle of the end of the first rotating shaft facing the second rotating shaft, and a linkage notch for inserting the linkage head to achieve linkage is correspondingly arranged at the end of the second rotating shaft;

[0015] And / or, the limiting rib on the second rotating shaft extends and protrudes from the end facing the first rotating shaft, and a docking port cooperating with the limiting rib is correspondingly arranged at the end of the first rotating shaft.

[0016] It is further set that: the opposite ends of the first rotating shaft and the second rotating shaft are fixedly connected by screws.

[0017] It is further set that: it further includes two snap covers respectively used for covering the outer ports of the first rotating cylinder part and the second rotating cylinder part.

[0018] Compared with the prior art, the structure of the utility model is simple and reasonable. The assembly between the first rotating bracket, the second rotating bracket and the rotating shaft assembly is convenient, and the cooperation among them is compact and stable, effectively ensuring the rotation and bending effect of the vacuum cleaner tube. At the same time, through the cooperation between the limiting rib on the rotating shaft assembly and the limiting notch on the second rotating cylinder part, the vacuum cleaner tube can be limited to bend at 110° - 120°. At this bending angle, it is convenient to vacuum and clean under the bed, under the table, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a vacuum cleaner tube of the utility model;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the rotating mechanism;

[0021] Figure 3 is an axial sectional schematic diagram of the rotating mechanism corresponding to the rotating shaft assembly;

[0022] Figure 4 is a sectional structural schematic diagram of the rotating mechanism corresponding to the second rotating shaft and the second rotating cylinder part;

[0023] Figure 5 is a three-dimensional structural schematic diagram of the first rotating bracket;

[0024] Figure 6 is a three-dimensional structural schematic diagram of the second rotating bracket;

[0025] Figure 7 is a separated structural schematic diagram of the rotating shaft assembly.

[0026] Combine the attached drawings and mark the following reference numerals on them:

[0027] 100, first pipe section; 200, second pipe section; 300, rotating mechanism; 310, first rotating bracket; 311, first rotating cylinder part; 3111, first retaining ring; 3112, notch; 312, second rotating cylinder part; 3121, limiting notch; 3122, third retaining ring; 320, second rotating bracket; 321, third rotating cylinder part; 3211, second retaining ring; 3212, linkage slot; 330, first rotating shaft; 331, first cylinder; 332, second cylinder; 3321, linkage rib; 333, third cylinder; 3331, linkage head; 3332, docking port; 340, second rotating shaft; 341, limiting rib; 342, linkage notch; 350, screw; 360, cover; 400, locking mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe in detail a specific embodiment of the present utility model in conjunction with the accompanying drawings. However, it should be understood that the protection scope of the present utility model is not limited by the specific embodiment.

[0029] A bendable vacuum cleaner tube of the present utility model is as Figure 1 shown, including a first pipe section 100, a second pipe section 200, and a rotating mechanism 300 disposed between the first pipe section 100 and the second pipe section 200. Thus, through the rotating mechanism 300, the first pipe section 100 and the second pipe section 200 can be rotated and switched between a horizontal state and a state of deflecting 110° - 120° to one side. When the vacuum cleaner tube is in the state of deflecting 110° - 120°, it is convenient for cleaning under the bed, under the table, etc. At the same time, a locking mechanism 400 for locking it in the horizontal state is also disposed between the first pipe section 100 and the second pipe section 200 of the vacuum cleaner tube. The locking mechanism 400 includes a lock catch and a locking groove that cooperates with the lock catch.

[0030] In this embodiment, as Figure 2 and Figure 4 shown, the rotating mechanism 300 includes a first rotating bracket 310 disposed at the rear end of the first pipe section 100, a second rotating bracket 320 disposed at the front end of the second pipe section 200, and a rotating shaft assembly passing through the first rotating bracket 310 and the second rotating bracket 320. Among them, the first rotating bracket 310 includes a first rotating cylinder part 311 and a second rotating cylinder part 312 arranged coaxially and at intervals. The second rotating bracket 320 includes a third rotating cylinder part located between the first rotating cylinder part 311 and the second rotating cylinder part 312 and arranged coaxially with the first rotating cylinder part 311. The rotating shaft assembly passes through the channel formed by the cooperation of the first rotating cylinder part 311, the second rotating cylinder part 312, and the third rotating cylinder part 321. The shaft body part of the rotating shaft assembly corresponding to being located in the third rotating cylinder part 321 is linked and cooperated with the third rotating cylinder part 321. A limiting rib 341 is provided on the shaft body part of the rotating shaft assembly corresponding to being located in the second rotating cylinder part 312. A limiting notch 3121 is correspondingly configured in the second rotating cylinder part 312 to cooperate with the limiting rib 341 to restrict the rotation of the rotating shaft assembly. Thus, by the cooperation of the limiting rib 341 with the two side walls of the limiting notch 3121, the first pipe section 100 and the second pipe section 200 can be restricted in the horizontal state and the state of deflecting 110° - 120° to one side.

[0031] Specifically, as Figure 3 、 Figure 5 and Figure 7As shown in the figure, the rotating shaft assembly includes a first rotating shaft 330 disposed in a passage formed by the mating of the first rotating cylinder portion 311 and the third rotating cylinder portion 321, and a second rotating shaft 340 disposed in the second rotating cylinder portion 312 and linked to the first rotating shaft 330. A limit retaining rib 341 is provided on the second rotating shaft 340. Among them, the first rotating shaft 330 is a three-layer stepped column structure with a gradually decreasing diameter, including a first column body 331 located in the first rotating cylinder portion 311, a second column body 332 located in the third rotating cylinder portion 321, a third column body 333 extending into the second rotating cylinder portion 312, a first stepped surface between the first column body 331 and the second column body 332, and a second stepped surface between the second column body 332 and the third column body 333. The diameter of the first column body 331 is larger than that of the second column body 332, and the diameter of the second column body 332 is larger than that of the third column body 333. The first rotating shaft 330 is inserted into the passage formed by the mating of the first rotating cylinder portion 311 and the third rotating cylinder portion 321 from the outer port (the port away from the second rotating cylinder portion 312) of the first rotating cylinder portion 311. A first retaining ring 3111 is provided at the inner port of the first rotating cylinder portion 311 (the side port facing the second rotating cylinder portion 312) and is configured to cooperate with the first stepped surface to limit the movement of the first column body 331. A second retaining ring 3211 for restricting the movement of the second column body 332 is provided at the port of the third rotating cylinder portion 321 corresponding to the side facing the second rotating cylinder portion 312. The third column body 333 passes through the inner hole of the second retaining ring 3211 and extends into the second rotating cylinder portion 312. Among them, the first column body 331 is rotationally engaged with the first rotating cylinder portion 311, and the second column body 332 is linked and engaged with the third rotating cylinder portion 321. Preferably, a linkage rib 3321 is provided on the outer wall of the second column body 332, and a linkage slot 3212 is correspondingly provided on the inner wall of the third rotating cylinder portion 321 and is configured to cooperate with the linkage rib 3321. A notch 3112 is provided on the first retaining ring 3111 opposite to the linkage slot 3212 for the linkage rib 3321 to pass through. In this way, the linkage between the first rotating shaft 330 and the second rotating bracket 320 can be realized through the cooperation of the linkage rib 3321 and the linkage slot 3212.

[0032] As Figure 3 , Figure 6 and Figure 7As shown in the figure, the second rotating shaft 340 is inserted into the outer port of the second rotating cylinder part 312 (the port far from the first rotating cylinder part 311). At the inner port of the second rotating cylinder part 312 (corresponding to the port facing the first rotating cylinder part 311), a third retaining ring 3122 for restricting the separation of the second rotating shaft 340 is provided. The third cylinder 333 of the first rotating shaft 330 extends into the second rotating cylinder part 312 through the inner hole of the third retaining ring 3122. The third cylinder 333 of the first rotating shaft 330 is linked and cooperated with the second rotating shaft 340, and the two are fixedly connected by screws 350. In this way, it is convenient to insert the rotating shaft assembly and limit its installation stably and reliably in the channel formed by the cooperation of the first rotating cylinder part 311, the third rotating cylinder part 321, and the second rotating cylinder part 312. Preferably, a linkage head 3331 with a polygonal structure is provided in the middle of the end face of the first rotating shaft 330 corresponding to the third cylinder 333, and a linkage notch 342 for inserting the linkage head 3331 to achieve linkage cooperation is correspondingly provided at the end of the second rotating shaft 340. The limiting rib 341 on the second rotating shaft 340 also extends and protrudes from the end facing the first rotating shaft 330, and a docking port 3332 for cooperating with the limiting rib 341 is correspondingly provided at the end of the third cylinder 333 of the first rotating shaft 330. The linkage effect between the first rotating shaft 330 and the second rotating shaft 340 is further improved through the cooperation of the limiting rib 341 and the docking port 3332.

[0033] In some other specific embodiments, the linkage cooperation between the third cylinder 333 of the first rotating shaft 330 and the second rotating shaft 340 can also be achieved by using one of the cooperation of the linkage head 3331 and the linkage notch 342, and the cooperation of the limiting rib 341 and the docking port 3332.

[0034] In this embodiment, the rotating mechanism 300 includes two fastening covers 360 respectively used for covering the outer ports of the first rotating cylinder part 311 and the second rotating cylinder part 312.

[0035] Compared with the prior art, the structure of the present utility model is simple and reasonable. The assembly between the first rotating bracket, the second rotating bracket, and the rotating shaft assembly is convenient, and the cooperation between them is compact and stable, effectively ensuring the rotation and bending effect of the vacuum cleaner tube. At the same time, through the cooperation of the limiting rib on the rotating shaft assembly and the limiting notch on the second rotating cylinder part, the vacuum cleaner tube can be restricted to bend at 110° - 120°. At this bending angle, it is convenient to vacuum and clean under the bed, under the table, etc.

[0036] The above only discloses the embodiments of the present utility model. However, the present utility model is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A rotating mechanism for a bendable vacuum cleaner pipe, which is arranged between adjacent pipe sections of the vacuum cleaner pipe to realize the rotation and bending between adjacent pipe sections, characterized in that: The rotating mechanism comprises a first rotating bracket and a second rotating bracket respectively arranged between the facing ends of adjacent pipe sections, and a rotating shaft assembly penetrating the first rotating bracket and the second rotating bracket; The first rotating bracket comprises a first rotating cylinder part and a second rotating cylinder part which are coaxially arranged and spaced apart, and a limiting notch is configured on the inner wall of the second rotating cylinder part; The second rotating bracket includes a third rotating drum portion located between the first rotating drum portion and the second rotating drum portion and arranged coaxially with the first rotating drum portion; The rotating shaft assembly passes through a channel formed by the first rotating cylinder portion, the third rotating cylinder portion and the second rotating cylinder portion, wherein the shaft body portion of the rotating shaft assembly corresponding to the shaft body portion located in the third rotating cylinder portion is linked and connected with the third rotating cylinder portion, and the shaft body portion of the rotating shaft assembly corresponding to the shaft body portion located in the second rotating cylinder portion is provided with a limiting rib placed in a limiting groove, and the limiting rib cooperates with the two side walls of the limiting groove to constrain the first rotating bracket and the second rotating bracket to be in a horizontal state and a state deflected to one side by 110°-120°.

2. A rotating mechanism for a bendable vacuum cleaner tube according to claim 1, characterized in that: The rotating shaft assembly includes a first rotating shaft passing through a channel formed by the first rotating cylinder part and the third rotating cylinder part, and a second rotating shaft passing through the second rotating cylinder part and linked to the first rotating shaft. The limiting rib is arranged on the outer wall of the second rotating shaft.

3. A rotating mechanism for a bendable vacuum cleaner tube according to claim 2, characterized in that: The first rotating shaft is a three-layer stepped column structure with a gradually decreasing diameter, including a first column located in the first rotating cylinder portion, a second column located in the third rotating cylinder portion, a third column extending into the second rotating cylinder portion, a first stepped surface located between the first column and the second column, and a second stepped surface located between the second column and the third column; A first retaining ring for cooperating with the first step surface is arranged at the port of the first rotating cylinder portion corresponding to the port facing the second rotating cylinder portion, and a second retaining ring for cooperating with the second step surface is arranged at the port of the third rotating cylinder portion corresponding to the port facing the second rotating cylinder portion.

4. A rotating mechanism for a bendable vacuum cleaner tube according to claim 3, characterized in that: The outer wall of the second column is provided with a linkage convex rib, and the inner wall of the third rotating cylinder is correspondingly provided with a linkage slot matched with the linkage convex rib.

5. The rotating mechanism of a bendable vacuum cleaner tube according to claim 2, characterized in that: A third retaining ring for limiting the disengagement of the second rotating shaft is provided at a port of the second rotating cylinder portion corresponding to the port facing the first rotating cylinder portion.

6. The rotating mechanism of a bendable vacuum cleaner tube according to claim 5, characterized in that: A protruding linkage head is provided on the middle of the end of the first rotating shaft facing the second rotating shaft, and a linkage recess for the linkage head to be inserted to realize linkage is correspondingly provided on the end of the second rotating shaft; And / or, the limiting retaining rib on the second rotating shaft extends and protrudes from the end portion facing the first rotating shaft, and the end portion of the first rotating shaft is correspondingly provided with a docking interface that cooperates with the limiting retaining rib.

7. A rotating mechanism for a bendable vacuum cleaner tube according to any one of claims 2 to 6, characterized in that: The facing ends of the first rotating shaft and the second rotating shaft are fixedly connected by screws.

8. The rotating mechanism of a bendable vacuum cleaner tube according to claim 1, characterized in that: It also includes two snap covers for covering the outer side ports of the first rotating cylinder part and the second rotating cylinder part respectively.

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