Folding pipe of dust collector

Abstract

The utility model discloses a dust collector folding pipe which comprises a fixing pipe and a mounting pipe, a first fixing cylinder is mounted at one end of the fixing pipe, a first mounting cylinder is mounted at one end of the mounting pipe, a second fixing cylinder is clamped to the outer side of the first fixing cylinder, and a second mounting cylinder is rotationally connected to the outer side of the first mounting cylinder. The first fixing cylinder is connected with a fixing shaft, the first mounting cylinder is connected with a mounting seat, the second mounting cylinder is provided with a receding groove for the mounting seat to extend out, the mounting seat is hinged to the fixing shaft, and a flexible connecting pipe is detachably connected between the first fixing cylinder and the first mounting cylinder. The first fixing cylinder is connected with a fixing strip, the fixing strip is connected with a fixing block, and the inner side wall of the second mounting cylinder is connected with a locking block matched with the fixing block. The fixing block and the locking block are arranged inside, so that collision and damage are avoided, and the service life of the dust collector is ensured.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaner components, and more particularly to a vacuum cleaner folding tube. Background Technology

[0002] Vacuum cleaners, as essential tools for household cleaning, are constantly being improved in design and function to enhance the user experience and cleaning efficiency. The folding tube is a crucial component of a vacuum cleaner, and its design significantly impacts its portability, storage convenience, and operational flexibility. Modern vacuum cleaners require ease of carrying and transportation. The folding tube design allows the vacuum cleaner to be collapsed when not in use, greatly reducing its size and facilitating storage and transport.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: Traditional vacuum cleaner folding tubes typically use an external snap-fit ​​structure to fix the tube sections. Although this design meets basic functional requirements to a certain extent, the external snap-fit ​​structure is easily damaged during frequent use or accidental impacts, resulting in loose snap-fits or breakage, which in turn affects the stability and service life of the vacuum cleaner. Therefore, it needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a foldable tube for a vacuum cleaner, aiming to solve the aforementioned problems.

[0005] A vacuum cleaner folding tube includes a fixed tube and an mounting tube. A first fixed cylinder is installed at one end of the fixed tube, and a first mounting cylinder is installed at one end of the mounting tube. A second fixed cylinder is snapped onto the outside of the first fixed cylinder, and a second mounting cylinder is rotatably connected to the outside of the first mounting cylinder. A fixed shaft is connected to the first fixed cylinder, and a mounting seat is connected to the first mounting cylinder. A clearance groove for the mounting seat to extend is provided on the second mounting cylinder. The mounting seat is hinged to the fixed shaft. A flexible connecting tube is detachably connected between the first fixed cylinder and the first mounting cylinder. A fixing strip is connected to the first fixed cylinder, and a fixing block is connected to the fixing strip. A locking block that cooperates with the fixing block is connected to the inner side wall of the second mounting cylinder.

[0006] By adopting the above technical solution, when fixing the fixing tube and the mounting tube, the mounting tube is folded over so that the second mounting cylinder is close to the second fixing cylinder. Then, the second mounting cylinder is rotated relative to the first mounting cylinder so that the fixing block and the locking block are misaligned. Then, the second mounting cylinder and the second fixing cylinder are brought together. Then, the second mounting cylinder is rotated back to its original position so that the fixing block and the locking block are brought together, thereby forming a lock between the fixing tube and the mounting tube. The fixing block and the locking block are built into the tube to avoid damage from bumps and ensure the service life of the vacuum cleaner.

[0007] Optionally, a reset torsion spring is fitted on the outer wall of the first mounting cylinder, with one end of the reset torsion spring fixedly connected to the first mounting cylinder and the other end fixedly connected to the second mounting cylinder.

[0008] By adopting the above technical solution, the reset torsion spring can minimize the accidental relative rotation between the second mounting cylinder and the first mounting cylinder, ensuring a reliable lock between the locking block and the fixing block.

[0009] Optionally, two deformable connecting arms are symmetrically connected to the outer side wall of the first mounting cylinder, and mounting strips that engage with the connecting arms are symmetrically connected to the inner side wall of the second mounting cylinder.

[0010] By adopting the above technical solution, the first mounting cylinder is pushed into the second mounting cylinder, so that the connecting arm and the mounting strip are engaged, thereby fixing the first mounting cylinder in the second mounting cylinder.

[0011] Optionally, the fixing block is provided with a first guide surface, and the locking block is provided with a second guide surface.

[0012] By adopting the above technical solution, when locking the second mounting cylinder and the second fixing cylinder, the first guide surface on the fixing block abuts against the second guide surface on the locking block, thereby driving the second mounting cylinder to rotate through the locking block, eliminating the need to manually rotate the second mounting cylinder, thus improving the locking efficiency.

[0013] Optionally, both ends of the fixed shaft are provided with fixed grooves, a locking pin is installed in the fixed groove, a limit spring is connected between the locking pin and the bottom wall of the fixed groove, and a number of limit grooves for the locking pin to be engaged are provided on the mounting base around the axis of the locking pin.

[0014] By adopting the above technical solution, the locking post is inserted into the limiting groove, thereby generating a damping sensation when the fixed shaft rotates relative to the mounting base, so that the angle between the fixed tube and the mounting tube can be fixed as needed.

[0015] Optionally, one end of the locking pin extending out of the fixing groove is connected to a hemispherical guide block.

[0016] By adopting the above technical solution, the guide block can provide a guiding effect for the locking pin, making the locking pin move more smoothly when it moves to the adjacent limiting groove.

[0017] Optionally, both ends of the mounting base are provided with positioning grooves, which are connected to limiting grooves. An elastic block is installed in the positioning groove, and several positioning posts for insertion into the limiting groove are connected to the elastic block.

[0018] By adopting the above technical solution, the positioning pin on the elastic block is inserted into the limiting groove and abuts against the guide block on the locking block, thereby preventing the locking pin from being excessively stuck in the limiting groove, making the angle adjustment between the fixing tube and the installation tube smoother.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. When fixing the fixed tube and the mounting tube, fold the mounting tube so that the second mounting cylinder is close to the second fixed cylinder. Then rotate the second mounting cylinder relative to the first mounting cylinder so that the fixing block and the locking block are misaligned. Then, bring the second mounting cylinder and the second fixed cylinder together, and then turn the second mounting cylinder back to its original position so that the fixing block and the locking block are together. This creates a lock between the fixed tube and the mounting tube, and the fixing block and the locking block are built in to prevent damage from bumps and ensure the service life of the vacuum cleaner.

[0021] 2. The reset torsion spring can minimize the possibility of accidental relative rotation between the second mounting cylinder and the first mounting cylinder, ensuring a secure lock between the locking block and the fixing block.

[0022] 3. Push the first mounting cylinder into the second mounting cylinder so that the connecting arm and the mounting strip are engaged, thereby fixing the first mounting cylinder into the second mounting cylinder.

[0023] 4. The locking pin is inserted into the limiting groove, which generates a damping sensation when the fixed shaft rotates relative to the mounting base, so that the angle between the fixed tube and the mounting tube can be fixed as needed.

[0024] 5. The positioning pin on the elastic block is inserted into the limiting groove and abuts against the guide block on the locking block, thereby preventing the locking pin from being excessively stuck in the limiting groove, making the angle adjustment between the fixing tube and the installation tube smoother. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure after the fixing tube and the mounting tube are locked in the embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the structure after the fixing tube and the mounting tube are unlocked in the embodiment of this application.

[0027] Figure 3 This is an exploded schematic diagram of the first and second mounting cylinders in the embodiments of this application.

[0028] Figure 4 This is an exploded schematic diagram of the second mounting cylinder and the second fixing cylinder in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Fixed tube; 11. First fixed cylinder; 111. Fixed shaft; 1111. Fixed groove; 112. Fixed strip; 113. Fixed block; 1131. First guide surface; 12. Second fixed cylinder; 2. Mounting tube; 21. First mounting cylinder; 211. Mounting seat; 2111. Limiting groove; 2112. Positioning groove; 212. Return torsion spring; 213. Connecting arm; 22. Second mounting cylinder; 221. Clearance groove; 222. Locking block; 2221. Second guide surface; 223. Mounting strip; 3. Connecting tube; 4. Locking post; 41. Guide block; 5. Limiting spring; 6. Elastic block; 61. Positioning post. Detailed Implementation

[0031] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] This application discloses a folding tube for a vacuum cleaner. (Refer to...) Figure 1 and Figure 2 It includes a fixed pipe 1 and an installation pipe 2.

[0034] Reference Figure 2 , Figure 3 and Figure 4One end of the fixing tube 1 is detachably connected to the first fixing cylinder 11 by screws, and one end of the mounting tube 2 is detachably connected to the first mounting cylinder 21 by screws. A second fixing cylinder 12 is snapped onto the outside of the first fixing cylinder 11, and a second mounting cylinder 22 is rotatably connected to the outside of the first mounting cylinder 21. A fixing shaft 111 is fixedly connected to the first fixing cylinder 11, and a mounting seat 211 is fixedly connected to the first mounting cylinder 21. The second mounting cylinder 22 has a clearance groove 221 for the mounting seat 211 to extend out, allowing the mounting seat 211 to slide within the clearance groove 221. The mounting seat 211 is hinged to the fixing shaft 111. A flexible connecting tube 3 is detachably connected between the first fixing cylinder 11 and the first mounting cylinder 21; specifically, the connecting tube 3 is a corrugated PVC pipe. Both ends of the connecting tube 3 are threadedly connected to the first fixing cylinder 11 and the first mounting cylinder 21, respectively.

[0035] Reference Figure 2 , Figure 3 and Figure 4 A fixing strip 112 is fixedly connected to the first fixing tube 11, and a triangular fixing block 113 is integrally formed on the fixing strip 112. A triangular locking block 222 that cooperates with the fixing block 113 is connected to the inner wall of the second mounting tube 22. When fixing the fixing tube 1 and the mounting tube 2, the mounting tube 2 is folded over so that the second mounting tube 22 is close to the second fixing tube 12. Then, the second mounting tube 22 is rotated relative to the first mounting tube 21 so that the fixing block 113 and the locking block 222 are misaligned. Then, the second mounting tube 22 and the second fixing tube 12 are brought together. Then, the second mounting tube 22 is rotated back to its original position so that the fixing block 113 and the locking block 222 are brought together, thereby forming a lock between the fixing tube 1 and the mounting tube 2. The fixing block 113 and the locking block 222 are built in, thereby avoiding damage from bumps and ensuring the service life of the vacuum cleaner.

[0036] Reference Figure 3 and Figure 4 A return torsion spring 212 is fitted on the outer wall of the first mounting cylinder 21. One end of the return torsion spring 212 is fixedly connected to the outer wall of the first mounting cylinder 21, and the other end is fixedly connected to the inner wall of the second mounting cylinder 22. The return spring 212 can prevent accidental relative rotation between the second mounting cylinder 22 and the first mounting cylinder 21, ensuring a reliable lock between the locking block 222 and the fixing block 113.

[0037] Reference Figure 3 and Figure 4The first mounting cylinder 21 has two symmetrically integrally formed connecting arms 213 with deformable capabilities on its outer side wall. The connecting arms 213 are made of PVC. The inner side wall of the second mounting cylinder 22 has symmetrically connected mounting strips 223 that engage with the connecting arms 213. Pushing the first mounting cylinder 21 into the second mounting cylinder 22 causes the connecting arms 213 to engage with the mounting strips 223, thereby fixing the first mounting cylinder 21 inside the second mounting cylinder 22. Furthermore, when the second mounting cylinder 22 rotates relative to the first mounting cylinder 21,

[0038] Reference Figure 3 and Figure 4 The fixing block 113 is provided with a first guide surface 1131, and the locking block 222 is provided with a second guide surface 2221. When the second mounting cylinder 22 and the second fixing cylinder 12 are locked, the first guide surface 1131 on the fixing block 113 abuts against the second guide surface 2221 on the locking block 222, thereby driving the second mounting cylinder 22 to rotate through the locking block 222, eliminating the need to manually rotate the second mounting cylinder 22, thus improving the locking efficiency.

[0039] Reference Figure 2 , Figure 3 and Figure 4 Both ends of the fixed shaft 111 are provided with fixed grooves 1111, and locking pins 4 are slidably connected in the fixed grooves 1111. Limiting springs 5 ​​are fixedly connected between the locking pins 4 and the bottom wall of the fixed grooves 1111. Several limiting grooves 2111 for the locking pins 4 to be engaged are provided on the mounting base 211 around the axis of the locking pins 4. A hemispherical guide block 41 is fixedly connected to one end of the locking pins 4 that extends out of the fixed grooves 1111. When the locking pins 4 are engaged in the limiting grooves 2111, a damping sensation is generated when the fixed shaft 111 rotates relative to the mounting base 211, so that the angle between the fixed tube 1 and the mounting tube 2 can be fixed as needed. The guide block 41 provides a guiding effect for the locking pins 4, making the locking pins 4 move more smoothly to the adjacent limiting grooves 2111.

[0040] Reference Figure 2 , Figure 3 and Figure 4 Both ends of the mounting base 211 are provided with positioning grooves 2112, which communicate with all the limiting grooves 2111. An elastic block 6, made of rubber, is installed inside the positioning groove 2112. Several positioning posts 61, integrally formed on the elastic block 6, are inserted into the limiting grooves 2111. The positioning posts 61 on the elastic block 6 are inserted into the limiting grooves 2111 and abut against the guide block 41 on the locking block 222, thereby preventing the locking post 4 from being excessively jammed into the limiting groove 2111, making the angle adjustment between the fixing tube 1 and the mounting tube 2 smoother.

[0041] The implementation principle of a vacuum cleaner folding tube according to an embodiment of this application is as follows: When fixing the fixing tube 1 and the mounting tube 2, the mounting tube 2 is folded so that the second mounting cylinder 22 is close to the second fixing cylinder 12. Then, the second mounting cylinder 22 is rotated relative to the first mounting cylinder 21 so that the fixing block 113 and the locking block 222 are misaligned. Then, the second mounting cylinder 22 and the second fixing cylinder 12 are brought together. Then, the second mounting cylinder 22 is rotated back to its original position so that the fixing block 113 and the locking block 222 are brought together, thereby forming a lock between the fixing tube 1 and the mounting tube 2. The fixing block 113 and the locking block 222 are built in, thereby avoiding damage from bumps and ensuring the service life of the vacuum cleaner.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dusting appliance collapsible tube characterised in that: The device includes a fixing tube (1) and an mounting tube (2). A first fixing cylinder (11) is mounted on one end of the fixing tube (1), and a first mounting cylinder (21) is mounted on one end of the mounting tube (2). A second fixing cylinder (12) is snapped onto the outer side of the first fixing cylinder (11), and a second mounting cylinder (22) is rotatably connected to the outer side of the first mounting cylinder (21). A fixing shaft (111) is connected to the first fixing cylinder (11), and a mounting base (211) is connected to the first mounting cylinder (21). The second mounting cylinder... (22) has a clearance groove (221) for the mounting base (211) to extend out. The mounting base (211) is hinged to the fixed shaft (111). A flexible connecting tube (3) is detachably connected between the first fixed cylinder (11) and the first mounting cylinder (21). A fixing strip (112) is connected to the first fixed cylinder (11). A fixing block (113) is connected to the fixing strip (112). A locking block (222) that cooperates with the fixing block (113) is connected to the inner wall of the second mounting cylinder (22).

2. A collapsible tube for a vacuum cleaner according to claim 1, wherein: A reset torsion spring (212) is sleeved on the outer wall of the first mounting cylinder (21). One end of the reset torsion spring (212) is fixedly connected to the first mounting cylinder (21), and the other end is fixedly connected to the second mounting cylinder (22).

3. A vacuum cleaner folding tube according to claim 1, characterized in that: The first mounting cylinder (21) has two deformable connecting arms (213) symmetrically connected on its outer side wall, and the second mounting cylinder (22) has mounting strips (223) symmetrically connected on its inner side wall that engage with the connecting arms (213).

4. A vacuum cleaner folding tube according to claim 1, characterized in that: The fixing block (113) is provided with a first guide surface (1131), and the locking block (222) is provided with a second guide surface (2221).

5. The collapsible tube of claim 1 wherein: Both ends of the fixed shaft (111) are provided with fixed grooves (1111), and a locking pin (4) is installed in the fixed groove (1111). A limit spring (5) is connected between the locking pin (4) and the bottom wall of the fixed groove (1111). A number of limit grooves (2111) for the locking pin (4) to be inserted are provided on the mounting base (211) around the axis of the locking pin (4).

6. A collapsible tube for a vacuum cleaner according to claim 5, wherein: The locking pin (4) has a hemispherical guide block (41) connected to one end of the locking pin (4) that extends out of the fixing groove (1111).

7. A vacuum cleaner folding tube according to claim 5, characterized in that: The mounting base (211) has positioning grooves (2112) at both ends. The positioning grooves (2112) are connected to the limiting grooves (2111). An elastic block (6) is installed in the positioning groove (2112). A number of positioning posts (61) for inserting into the limiting grooves (2111) are connected to the elastic block (6).

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