Easily extendable vacuum cleaner metal tube

Abstract

The utility model relates to dust collector technical field discloses an easy telescopic dust collector metal pipe, including hard pipe no.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a retractable vacuum cleaner metal tube. Background Technology

[0002] Vacuum cleaner hoses are typically composed of a rigid hose and a flexible hose. The flexible hose connects to the vacuum cleaner body and provides basic connectivity, while the rigid hose connects to the floor brush and serves as the main suction channel. During operation, the air containing dirt sucked in by the floor brush is guided into the body through the rigid and flexible hoses in sequence. However, when cleaning high places or crevices, the fixed length of the rigid hose is difficult to adapt flexibly. If it is not stretched enough, it will not reach the target, and if it is too long, it will be difficult to control. Therefore, a telescopic metal hose for vacuum cleaners has emerged.

[0003] The annular silicone sealing ring at the end of the inner telescopic tube is made of food-grade silicone and has good elastic deformation capability. Its cross-section is designed as a stepped shape, with the outer layer size slightly larger than the inner wall of the outer tube. After assembly, it can fit tightly against the inner wall of the outer tube through its own elasticity to form a reliable initial seal. When the inner telescopic tube slides, the sealing ring moves synchronously with the tube body. The stepped structure can cleverly compensate for the gaps caused by wear and maintain a stable contact pressure. This dynamic sealing design can effectively control airflow leakage. Even during the cleaning process of frequent extension and retraction, it can firmly prevent dust-laden air from escaping from the gaps in the tube body, ensuring that all the dirt sucked in by the floor brush enters the vacuum cleaner body along the tube cavity.

[0004] Current extendable vacuum cleaner metal hoses have made significant progress, breaking the limitations of traditional metal hoses with fixed lengths. They can handle different cleaning scenarios, and the sealed structure ensures vacuuming efficiency, which positively impacts the user experience. However, these metal hoses have obvious shortcomings. They lack assistance and temporary fixing mechanisms when extending or retracting, requiring continuous force to control. Releasing the grip midway may result in sudden extension or retraction, affecting operational precision and causing hand fatigue. Therefore, an extendable vacuum cleaner metal hose is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides an easily extendable vacuum cleaner metal tube, which aims to improve the problem that the existing technology lacks assistance and temporary fixing mechanisms when adjusting the extension, requiring continuous force to control.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A retractable vacuum cleaner metal tube includes a rigid tube one, a cleaning tube threaded to one side of the rigid tube one, a connecting tube threaded to the other side of the cleaning tube, a rigid tube two slidably connected to the outer wall of the connecting tube, a telescopic mechanism slidably connected to the inner wall of the rigid tube two, and a quick-release mechanism slidably connected to the inner wall of the rigid tube two.

[0008] The telescopic mechanism includes a sliding column, the outer wall of which is slidably connected to the inner wall of the rigid tube II. A rotating plate is fixedly connected to one side of the sliding column, and a spring pad is fixedly connected to the other side of the rotating plate. A limit assembly is fixedly connected to the outer wall of the sliding column, and a spring is sleeved on the outer wall of the sliding column.

[0009] Through the above technical solution: the telescopic mechanism is the core component for realizing the flexible adjustment of the rigid tube II. Among them, the sliding column, as the force carrier, can slide smoothly along the inner wall of the rigid tube II, providing basic guidance for the overall telescopic adjustment. The rotating plate on one side of the sliding column can move synchronously with the sliding column, and the elastic pad on the other side is made of elastic material, which greatly improves the comfort when people touch and press it. The limiting component on the outer wall of the sliding column can cooperate with the corresponding structure on the inner wall of the rigid tube II during the sliding process to prevent the sliding column from detaching from the tube due to excessive sliding. The spring sleeved on the outer wall of the sliding column plays a reset role. When the external force applied to the sliding column is removed, the spring will push the sliding column back to the initial position by elasticity, making the telescopic adjustment more effortless and controllable.

[0010] As a further description of the above technical solution:

[0011] The quick-release mechanism includes a fixing post, the outer wall of which is slidably connected to the inner wall of the rigid tube II, the inner wall of the rigid tube II has two guide grooves, the outer wall of the rigid tube II is fixedly connected to a flange I, the outer wall of the connecting tube is slidably connected to a flange II, and the outer wall of the fixing post is fixedly connected to two protrusions.

[0012] Through the above technical solution: the quick-release mechanism can realize the quick disassembly and assembly of components, the fixed column can slide on the inner wall of the rigid tube II, and the two protrusions on its outer wall are adapted to the guide groove on the inner wall of the rigid tube II. When sliding, it can move stably along the groove. The flange one on the outer wall of the rigid tube II corresponds to the flange two on the outer wall of the connecting pipe, making the connection of the entire metal pipe more stable and firm.

[0013] As a further description of the above technical solution:

[0014] The limiting component includes two limiting blocks, with one side of each limiting block fixedly connected to the outer wall of the sliding column. The inner wall of the rigid tube II has two limiting grooves, and the inner wall of the sliding column has a through hole. The inner wall of the through hole is slidably connected to a limiting post, and the inner wall of the rigid tube II has multiple through holes.

[0015] Through the above technical solution: the limiting component ensures the stable extension and retraction of the slide column within the rigid tube II through double limiting. The two limiting blocks move synchronously with the slide column. When the slide column slides to its limit position, the limiting block will engage with the limiting groove to prevent the slide column from sliding excessively and detaching from the tube body. The through hole on the inner wall of the slide column cooperates with the limiting column. The limiting column can slide along the through hole and insert into different through holes on the inner wall of the rigid tube II, thereby fixing the slide column in multiple positions. The design of multiple through holes allows the slide column to be locked at different lengths, meeting the diverse needs of users for the extension and retraction length of the rigid tube II.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the sliding column is provided with a protruding post, and the outer wall of the protruding post is slidably connected to the inner wall of the guide groove.

[0018] Through the above technical solution: the protrusion on the outer wall of the sliding column can enhance the sliding stability, and the protrusion slides along the inner wall of the guide groove, which can accurately guide the movement direction of the component.

[0019] As a further description of the above technical solution:

[0020] One side of the spring is fixedly connected to one side of the protruding post, and the other side of the spring is fixedly connected to one side of the fixed post.

[0021] The above technical solution involves connecting the spring to the protruding post and the fixed post at both ends to form an elastic connection structure. When the sliding post is subjected to force and slides, the spring will extend and retract accordingly, providing buffering and reset functions.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the sliding column is slidably connected to the inner wall of the fixed column, and one side of the first flange and one side of the second flange are in contact.

[0024] Through the above technical solution: the sliding column slides smoothly on the inner wall of the fixed column, ensuring smooth and unobstructed expansion and contraction. The contact surfaces of flange one and flange two are precisely processed to fit tightly, which not only ensures a stable connection but also facilitates quick disassembly and installation.

[0025] As a further description of the above technical solution:

[0026] The outer wall of the limiting post is slidably connected to the inner wall of one of the through holes, and the rotating plate is hexagonal in shape.

[0027] Through the above technical solution: after the limiting post is inserted into the through hole, the sliding post can be locked in a specific position to realize the length adjustment function. The hexagonal rotating plate is easy for users to hold and apply force, making the operation more convenient and labor-saving.

[0028] As a further description of the above technical solution:

[0029] One side of the sliding column is in contact with one side of the connecting tube, and the spring pad is hexagonal in shape.

[0030] The above technical solution provides support when the sliding column contacts the connecting pipe, ensuring structural stability and stable force transmission. The hexagonal spring pad fits the rotating plate, providing better buffering and more even force distribution.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, when the rotating plate is pressed, the spring pad cushions the pressing force through its own elasticity, making manual operation more comfortable. The rotating plate pushes the limiting block to slide on the inner wall of the rigid tube. The limiting block fits with the limiting groove, firmly constraining the sliding trajectory of the sliding column, so that it moves stably inside the rigid tube. The protrusion on the outer wall of the sliding column simultaneously compresses the spring, causing it to deform and store elastic potential energy. At the same time, the sliding column pushes the connecting tube to slide inside the rigid tube, realizing the extension and retraction of the metal tube. The limiting post cooperates with the through hole and the through hole to fix the limiting block in different positions, making the extension and retraction distance controllable and the operation simple and convenient.

[0033] 2. In this utility model, thanks to the tight fit between flange one and flange two, the connecting pipe can always remain coaxial when sliding on the inner wall of rigid pipe two, avoiding shaking and further improving sliding stability. The guide groove adopts an arc-shaped design, which can firmly engage the protrusion, allowing the fixed column to form a stable limit on the sliding column, reducing radial offset during extension and contraction, making the metal pipe extension and contraction smoother. The disassembly operation is simple. By rotating the fixed column, the protrusion will slide along the arc guide groove and disengage, and the fixed column will release the limit on the sliding column. At this time, the components can be easily separated, realizing the rapid disassembly of the internal structure of the metal pipe. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a retractable metal tube for a vacuum cleaner according to the present invention.

[0035] Figure 2 This is a schematic diagram of the structure of a retractable metal cleaning tube for a vacuum cleaner, as proposed in this utility model.

[0036] Figure 3 This is a schematic diagram of the sliding column of an easily extendable metal tube for a vacuum cleaner, as proposed in this utility model.

[0037] Figure 4 This is a schematic diagram of the rigid tube 2 of the easily extendable metal tube for a vacuum cleaner proposed in this utility model.

[0038] Legend:

[0039] 1. Rigid tube one; 2. Cleaning tube; 3. Connecting tube; 4. Rigid tube two; 5. Telescopic mechanism; 51. Sliding column; 52. Rotating plate; 53. Spring pad; 54. Limiting assembly; 541. Limiting block; 542. Limiting groove; 543. Limiting post; 544. Through hole; 545. Through hole; 55. Spring; 6. Quick release mechanism; 61. Fixing post; 62. Protrusion; 63. Guide groove; 64. Flange one; 65. Flange two. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figures 1 to 3 This utility model provides an embodiment of a retractable vacuum cleaner metal tube, comprising a rigid tube 1, which serves as the starting end of the metal tube, providing stable support for the entire pipe structure and acting as the foundation for connecting the vacuum cleaner body to other components, ensuring the stability of the pipe system. A cleaning tube 2 is threadedly connected to one side of the rigid tube 1. The cleaning tube 2 is used to collect and store dust and debris sucked in during vacuuming. The threaded connection allows for easy disassembly and cleaning, keeping the pipe clean and preventing blockages that could affect vacuuming performance. A connecting tube 3 is threadedly connected to the other side of the cleaning tube 2. The connecting tube 3 transmits power during the extension and retraction of the metal tube. The force and support structure ensures that the components are tightly connected, making the pipe module a whole. The outer wall of the connecting pipe 3 is slidably connected to the rigid pipe 4, which provides a sliding track for the connecting pipe 3. The inner wall of the rigid pipe 4 is slidably connected to the telescopic mechanism 5, which is the core component for realizing the telescopic function of the metal pipe. Through the synergistic effect of its internal structure, the telescopic length of the metal pipe is controlled, so that the metal pipe can be flexibly adjusted as needed. The inner wall of the rigid pipe 4 is slidably connected to the quick-release mechanism 6, which facilitates the disassembly and installation of the internal structure of the metal pipe, making it easy to maintain and replace parts and improving the ease of use.

[0042] The telescopic mechanism 5 includes a sliding column 51, the outer wall of which is slidably connected to the inner wall of the rigid tube 4. The sliding column 51 slides within the rigid tube 4, transmitting external force to the connecting tube 3 and pushing it to move. It is a key transmission component for the telescopic movement. A rotating plate 52 is fixedly connected to one side of the sliding column 51, facilitating user operation. The user can control the movement of the telescopic mechanism 5 by pressing and rotating the rotating plate 52, making operation more convenient. A spring pad 53 is fixedly connected to the other side of the rotating plate 52. The spring pad 53 responds to user pressure... The rotating plate 52 provides cushioning, increasing the comfort of pressing, reducing hand fatigue, and improving the user experience. The outer wall of the slide column 51 is fixedly connected to the limiting component 54, which limits the sliding range and position of the slide column 51, ensuring that the slide column 51 slides stably within the rigid tube 4 and preventing deviation or shaking during the sliding process. The outer wall of the slide column 51 is fitted with a spring 55, which deforms when the slide column 51 slides, storing and releasing elastic potential energy to provide restoring force for the extension and contraction of the metal tube, making the extension and contraction process smoother.

[0043] The quick-release mechanism 6 includes a fixed post 61, the outer wall of which is slidably connected to the inner wall of the rigid tube 4. The inner wall of the rigid tube 4 has two guide grooves 63. The outer wall of the rigid tube 4 is fixedly connected to a flange 64. The outer wall of the connecting tube 3 is slidably connected to a flange 65. The flange 65 contacts the flange 64 and provides support and guidance when the connecting tube 3 slides, ensuring that the connecting tube 3 slides smoothly in the rigid tube 4 and improving the stability of the extension and retraction process. The outer wall of the fixed post 61 is fixedly connected to two protrusions 62. The protrusions 62 slide in the guide grooves 63 and match the shape of the guide grooves 63 to realize the limiting and unlocking functions of the fixed post 61 and control the extension and retraction state of the metal tube.

[0044] Specifically, a retractable vacuum cleaner metal hose includes a rigid tube 1, a cleaning tube 2, a connecting tube 3, and a rigid tube 4, as well as a telescopic mechanism 5 and a quick-release mechanism 6. The rigid tube 1 supports the whole and connects to the main body. The cleaning tube 2 is threaded and can be disassembled and washed to avoid blockage. The connecting tube 3 ensures that the components are tightly connected. In the telescopic mechanism 5, the sliding column 51 drives the connecting tube 3, the rotating plate 52 facilitates operation, the spring pad 53 improves comfort, the limiting component 54 stabilizes the sliding, the spring 55 assists in telescopic movement, and the fixing column 61 of the quick-release mechanism 6 cooperates to control the telescopic movement. The flange ensures stable sliding. The whole system achieves flexible telescopic movement, easy maintenance, and stable vacuuming.

[0045] Reference Figures 2 to 4The limiting component 54 includes two limiting blocks 541. The two limiting blocks 541 are fixedly connected to the outer wall of the sliding column 51 on the side of their proximity. The inner wall of the rigid tube 4 has two limiting grooves 542. The limiting grooves 542 provide sliding tracks for the limiting blocks 541. They cooperate with the limiting blocks 541 to ensure the accurate sliding direction of the sliding column 51 and make the extension and retraction process more stable. The inner wall of the sliding column 51 has a through hole 544. The inner wall of the through hole 544 is slidably connected to a limiting post 543. The inner wall of the rigid tube 4 has multiple through holes 545. The through holes 545 cooperate with the limiting posts 543 to provide multiple locking positions, so that the metal tube can be adjusted to different lengths as needed to achieve controllable adjustment of the extension and retraction distance.

[0046] The outer wall of the sliding column 51 is provided with a protruding column, which provides a support point for the spring 55. When the sliding column 51 slides, it compresses the spring 55, causing the spring 55 to deform and store elastic potential energy, providing a restoring force for the extension and contraction of the metal tube. The outer wall of the protrusion 62 is slidably connected to the inner wall of the guide groove 63. The protrusion 62 slides in the guide groove 63, guiding the movement direction of the fixed column 61, so that the fixed column 61 can accurately limit and unlock the sliding column 51, controlling the extension and contraction state of the metal tube. One side of the spring 55 is fixedly connected to one side of the protruding column, and the other side of the spring 55 is fixedly connected to one side of the fixed column 61. The spring 55 transmits force between the protruding column and the fixed column 61. When the sliding column 51 slides, it deforms, storing and releasing elastic potential energy, making the extension and contraction process smoother. The outer wall of the sliding column 51 is slidably connected to the inner wall of the fixed column 61. The fixed column 61 provides additional support and guidance for the sliding column 51, reducing swaying when the sliding column 51 slides, improving the stability of the extension and contraction process, and ensuring the normal operation of the extension and contraction function of the metal tube.

[0047] One side of flange 64 contacts one side of flange 65. The contact fit between flange 64 and flange 65 enhances the connection stability between connecting pipe 3 and rigid pipe 4, reduces shaking during sliding, and makes the metal pipe more secure. The outer wall of the limiting post 543 is slidably connected to the inner wall of one of the through holes 545. The limiting post 543 is inserted into the through hole 545, locking the position of the sliding post 51, so that the metal pipe can be fixed at a specific telescopic length, ensuring that the metal pipe will not automatically telescopic due to external force during use. The rotating plate 52 is hexagonal in shape. The hexagonal rotating plate 52 is easy for users to hold and rotate, providing a better operating feel and allowing users to more easily control the extension and retraction of the metal tube. One side of the sliding column 51 is in contact with one side of the connecting tube 3. When the sliding column 51 slides, it pushes the connecting tube 3 to move, realizing the extension and retraction function of the metal tube, ensuring accurate power transmission and making the extension and retraction process smoother. The spring pad 53 is hexagonal in shape. The hexagonal spring pad 53 matches the shape of the rotating plate 52, providing a larger contact area, dispersing pressure when the user presses, increasing the comfort of pressing, and reducing hand fatigue.

[0048] Specifically, in the limiting component 54, the limiting block 541 and the limiting groove 542 cooperate to slide smoothly, the limiting post 543 is inserted into the through hole 545 to lock the length, the protruding post supports the spring 55, the protrusion 62 guides the fixed post 61 along the guide groove 63, the spring 55 connects the protruding post and the fixed post 61 to help smooth extension and retraction, the flange one 64 and the flange two 65 fit together to increase stability, the rotating plate 52 and the spring pad 53 are hexagonal to improve the operation feel, the sliding post 51 pushes the connecting pipe 3 to ensure power transmission, and the whole achieves stable extension and retraction and convenient operation.

[0049] Working principle: Pressing the rotating plate 52, thanks to the presence of the spring pad 53, makes manual pressing more comfortable. This causes the rotating plate 52 to push the limiting block 541 to slide on the inner wall of the rigid tube 4. Thanks to the cooperation between the limiting block 541 and the limiting groove 542, the sliding column 51 can slide stably and firmly on the inner wall of the rigid tube 4. This causes the protrusion on the outer wall of the sliding column 51 to compress the spring 55, causing the spring 55 to deform and generate and store elastic potential energy. Simultaneously, the sliding column 51 can push the connecting tube 3 to slide on the inner wall of the rigid tube 4, thus achieving the telescopic effect of the metal tube. The cooperation between the limiting column 543, the through hole 545, and the through hole 544 further enhances this effect. The limiting block 541 can stop at different positions, thus making the extension and retraction distance of the entire metal tube controllable. In summary, this makes the extension and retraction of the entire metal tube simpler and more convenient. Thanks to the cooperation between flange 1 64 and flange 2 65, the connecting pipe 3 can slide stably and firmly on the inner wall of rigid pipe 2 4. Thanks to the arc shape of the guide groove 63, the guide groove 63 can firmly lock the protrusion 62, thus allowing the fixing column 61 to provide a limit for the sliding column 51, making the extension and retraction of the entire metal tube more stable. Moreover, during disassembly, simply rotating the fixing column 61 allows the protrusion 62 to detach from the inside of the guide groove 63, thereby realizing the disassembly of the internal structure of the metal tube.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable metal tube for a vacuum cleaner, comprising a rigid tube (1), characterized in that: One side of the rigid tube (1) is threaded with a cleaning tube (2), and the other side of the cleaning tube (2) is threaded with a connecting tube (3). The outer wall of the connecting tube (3) is slidably connected with a rigid tube (4), and the inner wall of the rigid tube (4) is slidably connected with a telescopic mechanism (5). The inner wall of the rigid tube (4) is slidably connected with a quick-release mechanism (6). The telescopic mechanism (5) includes a sliding column (51), the outer wall of which is slidably connected to the inner wall of the rigid tube (4), a rotating plate (52) is fixedly connected to one side of the sliding column (51), a spring pad (53) is fixedly connected to the other side of the rotating plate (52), a limit assembly (54) is fixedly connected to the outer wall of the sliding column (51), and a spring (55) is sleeved on the outer wall of the sliding column (51).

2. The extendable vacuum cleaner metal tube according to claim 1, characterized in that: The quick-release mechanism (6) includes a fixed post (61), the outer wall of which is slidably connected to the inner wall of the rigid tube (4), the inner wall of the rigid tube (4) has two guide grooves (63), the outer wall of the rigid tube (4) is fixedly connected to a flange (64), the outer wall of the connecting tube (3) is slidably connected to a flange (65), and the outer wall of the fixed post (61) is fixedly connected to two protrusions (62).

3. The extendable vacuum cleaner metal tube according to claim 1, characterized in that: The limiting component (54) includes two limiting blocks (541). The two limiting blocks (541) are fixedly connected to the outer wall of the sliding column (51) on their adjacent sides. The inner wall of the rigid tube (4) has two limiting grooves (542). The inner wall of the sliding column (51) has a through hole (544). The inner wall of the through hole (544) is slidably connected to a limiting post (543). The inner wall of the rigid tube (4) has multiple through holes (545).

4. The easily extendable vacuum cleaner metal tube according to claim 2, characterized in that: The outer wall of the sliding column (51) is provided with a protruding column, and the outer wall of the protrusion (62) is slidably connected to the inner wall of the guide groove (63).

5. The easily extendable vacuum cleaner metal tube according to claim 4, characterized in that: One side of the spring (55) is fixedly connected to one side of the protruding post, and the other side of the spring (55) is fixedly connected to one side of the fixed post (61).

6. The extendable vacuum cleaner metal tube according to claim 2, characterized in that: The outer wall of the sliding column (51) is slidably connected to the inner wall of the fixed column (61), and one side of the flange one (64) and one side of the flange two (65) are in contact.

7. The easily extendable vacuum cleaner metal tube according to claim 3, characterized in that: The outer wall of the limiting post (543) is slidably connected to the inner wall of one of the through holes (545), and the rotating plate (52) is hexagonal in shape.

8. The extendable vacuum cleaner metal tube according to claim 1, characterized in that: One side of the sliding column (51) is in contact with one side of the connecting tube (3), and the elastic pad (53) is hexagonal in shape.

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