Pipeline structure capable of being rotationally locked

Abstract

The utility model discloses a pipeline structure capable of being rotationally locked, which relates to the technical field of cleaning electric appliances and comprises a first pipeline and a second pipeline in butt joint with the outer side of an extension part of the first pipeline, and a rotary locking structure is arranged at the butt joint position of the first pipeline and the second pipeline. According to the pipeline structure capable of being rotationally locked, when the first pipeline and the second pipeline are in a straightened state, a clamping groove formed in the center of the outer ring can preliminarily limit a locking protrusion, and meanwhile under the auxiliary effect of a clamping block, the position of the locking protrusion can be further limited; at the moment, the use stability when the first pipeline and the second pipeline are in a straightened state can be ensured, and when the first pipeline and the second pipeline are in a bent state, the clamping blocks made of an elastic rubber material can be extruded by the clamping blocks and enter the movable grooves; and due to the arrangement of a relatively long space of the movable groove, the first pipeline can freely move between 90 degrees and 180 degrees, so that the applicability of the first pipeline and the second pipeline after being bent is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning appliances, in particular to a dust collection pipe structure of a vacuum cleaner, specifically to a rotatably locked pipe structure. Background Art

[0002] The vacuum cleaner is mainly composed of a motor, a dust collection part (including a dust bag or dust collection bucket, a filter, etc.), a dust collection pipe, a suction head, and accessories (such as a brush, a gap suction nozzle, etc.). The vacuum cleaner suction pipe is a crucial component of the vacuum cleaner system, which is responsible for transporting the dust and dirt sucked in by the suction port to the dust collection device;

[0003] For example, in the prior art, a fire-resistant and heat-insulating vacuum cleaner pipe with a publication number of CN115251759A adopts a double-tube structure, and an insulating chamber is formed between the double tubes. The two tube bodies are insulated under the action of the insulation layer, and the outer fireproof pipe is mainly composed of refractory fillers, refractory additives and organic resin fireproof materials, which greatly improves the fire resistance of the outer fireproof pipe itself. At the same time, the outer surface of the outer fireproof pipe is coated with a fireproof coating to further improve the fire resistance of the outer fireproof pipe, reduce the damage to the pipe caused by high temperature or fire, and thus avoid aggravating the severity of the accident.

[0004] The dust suction duct of an ordinary vacuum cleaner is generally a rigid structure that cannot rotate, and the duct angle cannot be adjusted, so that when the vacuum cleaner is performing a vacuuming operation, the vacuuming angle is fixed. The fixed vacuuming angle cannot be adjusted according to different environments to better perform the vacuuming operation. The use of the dust suction duct has certain limitations.

[0005] Therefore, we propose a rotatably locked pipeline structure to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a rotatable and lockable pipe structure to solve the problem in the above background technology that the dust suction angle is fixed and the fixed dust suction angle cannot be adjusted according to different environments.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotatable and lockable pipeline structure, comprising a first pipeline and a second pipeline docked with the outer side of an extension portion of the first pipeline, a rotation locking structure is arranged at the docking position between the first pipeline and the second pipeline, and the rotation locking structure is arranged at the docking position between the first pipeline and the second pipeline to realize the rotation and locking between the first pipeline and the second pipeline, and the first pipeline and the second pipeline can switch between a fixed state or a rotating state within an angle range via the rotation locking structure.

[0008] As a preferred solution, the rotation locking structure includes a rotating shaft, the rotating shaft is rotatably connected to an extension provided on the side of the first pipe, and an inner ring is fixedly connected to the outer end of the rotating shaft, and a locking protrusion protruding outward is provided at the edge of the inner ring.

[0009] As a preferred solution, the rotation locking structure further includes an outer ring, the outer ring is fixedly arranged at the edge of the second pipe, and a clamping block protruding inward is provided at the inner edge position of the outer ring.

[0010] As a preferred solution, an activity groove is formed between one side of the clamping block and the inner side of the outer ring, and a clamping groove is further formed between the other side of the clamping block and the inner side of the outer ring, and an inner ring is provided at the center of the outer ring.

[0011] As a preferred solution, the clamping block is made of an elastically deformable rubber material, and the length of the activity groove is greater than the maximum value of the length of the clamping groove.

[0012] As a preferred solution, the inner ring is nested at the center of the outer ring. When the first pipe and the second pipe are in a straight state, the locking protrusion provided on the side of the inner ring is located inside the clamping groove, and the position of the locking protrusion can be preliminarily limited by the clamping groove and the clamping block, so as to ensure that the first pipe and the second pipe are in a straight state.

[0013] As a preferred solution, when the first pipe and the second pipe are in a bent state, the locking protrusion leaves the clamping groove and enters the activity groove, and the first pipe can rotate freely, and the movement angle is 90°-180°.

[0014] As a preferred solution, a corrugated pipe is penetrated between the interiors of the first pipe and the second pipe, and groove bodies for providing space for their rotation are provided at the docking and folding positions of the first pipe and the second pipe.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. Through the arrangement of the rotation locking structure, rotation occurs between the rigid first pipe and the second pipe, so that the first pipe and the second pipe can be bent, which is convenient for dust suction operations at different angles;

[0017] 2. When the first pipe and the second pipe are in a straight state, the clamping groove opened at the center of the outer ring can preliminarily limit the locking protrusion, and at the same time, with the auxiliary effect of the clamping block, the position of the locking protrusion can be further limited, and the stability during use when the first pipe and the second pipe are in a straight state can be ensured at this time;

[0018] 3. When the first pipe and the second pipe are in a bent state, the clamping block can be squeezed through the clamping block made of elastic rubber material, and the clamping block can enter the inside of the movable groove. The long space of the movable groove allows the first pipe to move freely between 90° and 180°, thus further improving the applicability after the first pipe and the second pipe are bent;

[0019] 4. The corrugated pipe is arranged inside the first pipe and the second pipe. When the first pipe and the second pipe are bent, the corrugated pipe can be bent synchronously. At the same time, the corrugated pipe can ensure that the first pipe and the second pipe are in a sealed state, reducing the occurrence of air leakage at the bent part after the first pipe and the second pipe are bent;

[0020] 5. The docking of the first pipe and the second pipe is in the opened groove body, providing space for the bending of the first pipe and the second pipe, preventing obstruction between the first pipe and the second pipe during bending, and making the bending effect poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view structural schematic diagram of the present utility model in a straight state;

[0022] Figure 2 is a front view structural schematic diagram of the rotation locking structure of the present utility model in a straight state;

[0023] Figure 3 is a front view structural schematic diagram of the present utility model in a bent state;

[0024] Figure 4 is a front view structural schematic diagram of the rotation locking structure of the present utility model in a bent state.

[0025] In the figure: 1. First pipe; 2. Second pipe; 3. Rotation locking structure; 4. Corrugated pipe; 5. Rotating shaft; 6. Inner ring; 7. Outer ring; 8. Card slot; 9. Locking protrusion; 10. Clamping block; 11. Movable groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0027] Embodiment 1: As Figure 1 and Figure 3For the technical solution shown, the present utility provides the following technical solution: A rotatable and lockable pipeline structure discloses a rotation locking structure 3. Through the rotation locking structure 3, the states of the first pipeline 1 and the second pipeline 2 can be changed:

[0028] The first pipeline 1 and the second pipeline 2 which is arranged in butt joint with the outer side of the extension part of the first pipeline 1. At the butt joint position of the first pipeline 1 and the second pipeline 2, a rotation locking structure 3 is arranged. The rotation locking structure 3 realizes the rotation and locking between the first pipeline 1 and the second pipeline 2 by being arranged at the butt joint position of the first pipeline 1 and the second pipeline 2. The first pipeline 1 and the second pipeline 2 can be switched between the states of maintaining fixation or rotating within an angular range via the rotation locking structure 3;

[0029] The rotation locking structure 3 includes a rotating shaft 5. The rotating shaft 5 is rotatably connected to the extension part arranged on the side of the first pipeline 1, and the outer end of the rotating shaft 5 is fixedly connected with an inner ring 6. And a locking protrusion 9 protruding outward is arranged at the edge of the inner ring 6. The rotation locking structure 3 further includes an outer ring 7. The outer ring 7 is fixedly arranged at the edge of the second pipeline 2. And an inwardly protruding clamping block 10 is arranged at the inner edge position of the outer ring 7. An activity groove 11 is formed between one side of the clamping block 10 and the inner side of the outer ring 7, and a clamping groove 8 is further formed between the other side of the clamping block 10 and the inner side of the outer ring 7. The clamping block 10 is made of an elastic deformable rubber material. The length of the activity groove 11 is greater than the maximum value of the length of the clamping groove 8.

[0030] Through the arrangement of the rotation locking structure 3, rotation occurs between the rigid first pipeline 1 and the second pipeline 2, so that the first pipeline 1 and the second pipeline 2 can be bent, which is convenient for dust suction operations at different angles, and further improves the applicability of the device during dust suction operations.

[0031] Embodiment 2: As Figure 2 and Figure 4 For the technical solution shown, the present utility provides the following technical solution: A rotatable and lockable pipeline structure discloses an inner ring 6 and an outer ring 7. By rotating the inner ring 6 at the center of the outer ring 7, the states between the first pipeline 1 and the second pipeline 2 are changed, so as to realize the rotation and locking operations:

[0032] The inner ring 6 is nested at the center of the outer ring 7. When the first pipeline 1 and the second pipeline 2 are in a straight state, the locking protrusion 9 arranged on the side of the inner ring 6 is located inside the clamping groove 8. The position of the locking protrusion 9 can be preliminarily limited by the clamping groove 8 and the clamping block 10, so as to ensure that the first pipeline 1 and the second pipeline 2 are in a straight state. When the first pipeline 1 and the second pipeline 2 are in a bent state, the locking protrusion 9 leaves the clamping groove 8 and enters the interior of the activity groove 11. The first pipeline 1 can rotate freely, and the movement angle is 90° - 180°.

[0033] When the first pipe 1 and the second pipe 2 are in a straight state, the clamping groove 8 opened at the center of the outer ring 7 can initially limit the locking projection 9. At the same time, with the assistance of the clamping block 10, the position of the locking projection 9 can be further limited. At this time, the stability of the first pipe 1 and the second pipe 2 when they are in a straight state can be ensured. When the first pipe 1 and the second pipe 2 are in a bent state, the clamping block 10 can be squeezed through the clamping block 10 made of elastic rubber material, and the clamping block 10 can enter the inside of the moving groove 11. The relatively long space of the moving groove 11 enables the first pipe 1 to move freely between 90° and 180°, thereby further improving the applicability of the first pipe 1 and the second pipe 2 after being bent.

[0034] Embodiment 3: As Figure 1 and Figure 3 shown in the technical solution, the present utility model provides the following technical solution: A pipe structure with rotatable locking discloses a corrugated pipe 4, and the sealing performance between the first pipe 1 and the second pipe 2 can be improved through the corrugated pipe 4:

[0035] A corrugated pipe 4 is penetrated between the interiors of the first pipe 1 and the second pipe 2, and groove bodies for providing space for their rotation are respectively opened at the docking and folding positions of the first pipe 1 and the second pipe 2.

[0036] The corrugated pipe 4 is arranged inside the first pipe 1 and the second pipe 2. When the first pipe 1 and the second pipe 2 are bent, the corrugated pipe 4 can be bent synchronously. At the same time, the corrugated pipe 4 can ensure that the first pipe 1 and the second pipe 2 are in a sealed state, reducing the occurrence of air leakage at the bent part after the first pipe 1 and the second pipe 2 are bent. The docking of the first pipe 1 and the second pipe 2 at the opened groove bodies provides space for the bending of the first pipe 1 and the second pipe 2, preventing blockage between the first pipe 1 and the second pipe 2 during bending and resulting in poor bending effect.

[0037] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotatably locked pipe structure, comprising a first pipe (1) and a second pipe (2) butted against the outer side of an extension of the first pipe (1), characterized in that: A rotation locking structure (3) is provided at the docking position of the first pipe (1) and the second pipe (2). The rotation locking structure (3) is provided at the docking position of the first pipe (1) and the second pipe (2) to realize the rotation and locking between the first pipe (1) and the second pipe (2). The first pipe (1) and the second pipe (2) can be switched between a fixed state or a rotation state within an angle range via the rotation locking structure (3). A bellows (4) is provided between the inside of the first pipe (1) and the second pipe (2), and a groove body that can provide space for the rotation of the first pipe (1) and the second pipe (2) is provided at the docking and folding position of the first pipe (1) and the second pipe (2). The rotation locking structure (3) comprises a rotation shaft (5), the rotation shaft (5) being rotationally connected to an extension portion provided on the side of the first pipe (1), and the outer end of the rotation shaft (5) being fixedly connected to an inner ring (6), and an outwardly protruding locking protrusion (9) being provided at the edge of the inner ring (6), the rotation locking structure (3) further comprises an outer ring (7), the outer ring (7) being fixedly provided at the edge of the second pipe (2), and an inwardly protruding clamping block (10) being provided at the inner edge of the outer ring (7), a movable groove (11) being provided between one side of the clamping block (10) and the inner side of the outer ring (7), and a clamping groove (8) being provided between the other side of the clamping block (10) and the inner side of the outer ring (7), and the inner ring (6) being provided at the center of the outer ring (7).

2. A rotatably locked pipeline structure according to claim 1, characterized in that: The clamping block (10) is made of an elastically deformable rubber material, and the length of the movable groove (11) is greater than the maximum length of the clamping groove (8).

3. The rotatably locked pipeline structure according to claim 1, characterized in that: The inner ring (6) is nested at the center of the outer ring (7). When the first pipe (1) and the second pipe (2) are in a straight state, the locking protrusion (9) provided on the side of the inner ring (6) is located inside the clamping groove (8). The locking protrusion (9) can be initially limited in position by the clamping groove (8) and the clamping block (10), thereby ensuring that the first pipe (1) and the second pipe (2) are in a 180° state.

4. The rotatably locked pipeline structure according to claim 1, characterized in that: When the first pipe (1) and the second pipe (2) are in a bent state, the locking protrusion (9) leaves the locking groove (8) and enters the interior of the movable groove (11), and the first pipe (1) can be rotated at will, and the movement angle is 90°-180°.

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