A length adjustable vacuum cleaner hose

Abstract

The utility model discloses a length adjustable dust catcher pipe, including first pipe subassembly, second pipe subassembly and locking assembly, first pipe subassembly includes first pipe body, and second pipe subassembly includes the second pipe body of being packed in first pipe body outside, locking assembly includes notched part, cooperation piece, locking piece and spacing post, and the notched part is arranged on first pipe body and is provided with a plurality of positioning mouth on its notched side wall, and cooperation piece is arranged on second pipe body and has the accommodation groove department of embedding in notched part, and the side wall of accommodation groove department is provided with recess, locking piece movably sets up in the accommodation groove department of cooperation piece, and spacing post sets up between locking piece and recess. The utility model discloses through the operation locking piece motion to control spacing post steady carding in the locking position of positioning mouth, and spacing post can move and slide out the unlocking position between the switching of positioning mouth, to control the locking or unlocking between first pipe body and second pipe body.

Description

Technical Field

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

[0002] A vacuum cleaner is a device mainly used for cleaning floors, carpets, furniture, etc. It includes a telescopic tube, which comprises a first tube body and a second tube body that slide relative to each other, and a locking assembly disposed between the first tube body and the second tube body. The locking assembly includes a locking handle rotatably connected to the second tube body. The locking handle has an eccentric wheel, and the second tube body has a corresponding through hole for the eccentric wheel to pass through. By rotating the locking handle, the eccentric wheel is pressed against the first tube body, thus locking the position between the first tube body and the second tube body. Conversely, opening it allows the length of the telescopic tube to be adjusted. However, this locking assembly only achieves locking between the first tube body and the second tube body through point contact, resulting in poor locking stability and cumbersome operation, leaving room for improvement. Utility Model Content

[0003] The present invention aims to overcome the defects in the prior art and provides a vacuum cleaner tube with an adjustable length. By controlling the movement of the locking member, the limiting post can be switched between a locked position where it is stably locked in the positioning port and an unlocked position where it can slide out of the positioning port, thereby controlling the locking or unlocking between the first tube body and the second tube body. The extension and retraction operation is convenient and the locking stability is good.

[0004] To achieve the above objectives, this utility model provides a vacuum cleaner hose with adjustable length, including a first hose assembly, a second hose assembly, and a locking assembly disposed between the first hose assembly and the second hose assembly: The first tube assembly includes a first tube body, and the second tube assembly includes a second tube body fitted over the first tube body; The locking assembly includes a slotted part, a mating part, a locking part, and a limiting post. The slotted part is axially extended and disposed on the outer wall of the first tube. The slotted part has a plurality of positioning holes spaced apart on at least one side wall corresponding to its slot. The mating part is disposed on the second tube and has a movably fitted receiving groove in the slotted part. The receiving groove has a notch on at least one side wall corresponding to its slot that can communicate with any positioning hole on the corresponding side of the slotted part. The locking member is movably disposed within the receiving groove of the mating member and can switch between a locked position and an unlocked position. The limiting post is constrained within the space between the locking member and the recessed structure and is configured as follows: When the locking member is in the locked position, the limiting post is constrained so that part of it is inserted into the positioning port of the slot member through the notch, and at this time the movement between the first tube and the second tube is restricted. When the locking member is in the unlocked position, the limiting post can move away from the positioning port of the slot member, and at this time the length between the first tube and the second tube can be adjusted.

[0005] A further provision is provided: at least one end of the locking member is provided with a spring between the end of the groove of the receiving groove, the spring causing the locking member to always have a tendency to move toward the locking position and remain stably in the locking position.

[0006] The locking member is further configured such that: the sidewall of the locking member has a wave-shaped segment including a crest and a trough; the crest of the locking member is in the locked position when it is opposite to the notch, and the trough of the locking member is in the unlocked position when it is opposite to the notch.

[0007] The locking member is further configured such that the wavy section on the side wall includes a crest and two troughs located on both sides of the crest.

[0008] The locking member is further configured such that the distance it slides in the groove of the receiving slot toward one end is the same as the distance between the crest and the trough.

[0009] The further configuration is as follows: the mating component is an annular component fixedly fitted inside the port of the second tube body, and the first tube body is directionally slidably fitted inside the mating component.

[0010] The second tube is further configured to have a control element for driving the locking element to slide within the receiving groove.

[0011] The further configuration is as follows: both sides of the slotted component are provided with positioning openings, and the positioning openings on both sides are arranged in a corresponding manner.

[0012] The second tube assembly is further configured such that: the second tube assembly also includes a third tube body that is linked and movably sleeved within the first tube body, and the outer wall of the third tube body is at least sealed and connected to the port of the first tube body.

[0013] Compared with the prior art, the present invention has a simple and reasonable structure. By controlling the movement of the locking component, the locking position of the limiting post is switched between a stable locking position in the positioning port and an unlocking position where the limiting post can slide out of the positioning port, thereby controlling the locking or unlocking between the first tube and the second tube. The telescopic operation is convenient and the locking stability is good. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a vacuum cleaner tube with adjustable length according to the present invention. Figure 2 This is a schematic diagram of the structure after the second tube is concealed; Figure 3 This is a three-dimensional structural diagram of the mating parts; Figure 4 This is a structural diagram of the locking component.

[0015] The following reference numerals are marked on the accompanying drawings: 10. First pipe assembly; 11. First pipe body; 20. Second pipe assembly; 21. Second pipe body; 22. Third pipe body; 30. Locking assembly; 31. Groove part; 311. Positioning port; 32. Mating part; 321. Receiving groove; 322. Notch; 33. Locking part; 331. Crest part; 332. Cushion part; 34. Limiting post; 35. Spring; 36. Control part. Detailed Implementation

[0016] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0017] This utility model relates to a vacuum cleaner hose with an adjustable length, such as... Figure 1 As shown, it includes a first tube assembly 10, a second tube assembly 20, and a locking component 30 disposed between the first tube assembly 10 and the second tube assembly 20: wherein the first tube assembly 10 includes a first tube body 11, the second tube assembly 20 includes a second tube body 21 movably fitted outside the first tube body 11, and the locking component 30 is used to control the locking or unlocking of the relative position between the first tube body 11 and the second tube body 21.

[0018] In this embodiment, as Figure 2 and Figure 3 As shown, the locking assembly 30 includes a slotted member 31, a mating member 32, a locking member 33, and a limiting post 34. The slotted member 31 is axially extended and disposed on the outer wall of the first tube 11. The slotted member 31 has an axially extending slot and a plurality of positioning holes 311 are spaced apart on at least one side wall corresponding to the slot. The mating member 32 is disposed on the second tube 21 and has a movably fitting receiving groove 321 embedded in the slotted member 31. The receiving groove 321 has an axially extending slot and a recess on at least one side wall corresponding to the slot (the side wall corresponding to the side wall with the positioning hole 311) that can communicate with any positioning hole 311 on the corresponding side of the slotted member 31. The locking member 33 is movably installed in the slot of the receiving groove 321 and can switch between a locked position and an unlocked position. The limiting post 34 is constrained in the space where the locking member 33 and the notch 322 cooperate and is configured such that: when the locking member 33 is in the locked position, the limiting post 34 is constrained so that it partially enters the positioning port 311 of the slot member 31 through the notch 322, and the movement between the first tube 11 and the second tube 21 is restricted; when the locking member 33 is in the unlocked position, the limiting post 34 can move away from the positioning port 311 of the slot member 31, and the length between the first tube 11 and the second tube 21 can be adjusted.

[0019] In the above scheme, preferably, the slotted part 31 is provided with positioning ports 311 on both sides of its slot, and the positioning ports 311 on both sides are arranged in a one-to-one correspondence. The receiving slot 321 is provided with recesses 322 on both sides of its slot. There are two limiting posts 34, which are respectively housed in the space formed by the corresponding cooperation between the two sides of the locking part 33 and the recesses 322 on both sides. In this way, the position locking between the first tube 11 and the second tube 21 can be better realized.

[0020] In this embodiment, as Figure 1 and Figure 2 As shown, the first tube body 11 is provided with an axially extending mounting groove. The groove part 31 is an independent component and is fixedly installed in the mounting groove of the first tube body 11 by screws. In this way, the extension accuracy of the vacuum cleaner tube can be adjusted by replacing the groove part 31 with different spacing positioning ports 311. In some specific embodiments, the groove part 31 can also be a groove provided on the first tube body 11, and the positioning port 311 is directly provided on the side wall of the groove.

[0021] In this embodiment, as Figure 2 As shown, a spring 35 is provided between at least one end of the locking member 33 and the end of the groove of the receiving groove 321. The spring 35 causes the locking member 33 to always have a tendency to move towards the locking position and remain stably in the locking position. In this way, when no external force is applied, the locking assembly 30 can keep the vacuum cleaner tube stably in a locked state with a constant length. Preferably, springs 35 are provided at both ends of the locking member 33, so that the locking member 33 can be stably and reliably stopped in the locking position by the action of the springs 35 on both sides.

[0022] In this embodiment, as Figure 2 and Figure 4 As shown, the side wall of the locking member 33 has a wave-shaped section including a crest portion 331 and a trough portion 332. When the crest portion 331 of the locking member 33 is opposite to the recess 322, it is in the locked position, and when the trough portion 332 of the locking member 33 is opposite to the recess 322, it is in the unlocked position. Thus, by driving the locking member 33 to slide, the unlocking or locking can be easily controlled. Preferably, the wave-shaped section on the side wall of the locking member 33 includes a crest portion 331 and two trough portions 332 located on both sides of the crest portion 331. The distance that the locking member 33 slides towards one end of the groove of the receiving groove 321 is the same as the distance between the crest portion 331 and the trough portion 332. Thus, by driving the locking member 33 to slide forward or backward a maximum distance, the unlocked position can be reached. After releasing, it can be reset to the locked position under the action of the spring 35.

[0023] In this embodiment, the mating part 32 is an annular part fixedly fitted inside the front port of the second tube body 21, and the first tube body 11 is directionally slidably fitted (the receiving groove 321 is embedded in the groove of the slot part 31) inside the slot part 31; the second tube body 21 is provided with a control part 36 for driving the locking part 33 to slide in the receiving groove 321.

[0024] In this embodiment, the second tube assembly 20 further includes a third tube 22 that is linked and movably sleeved inside the first tube 11 and is connected to the second tube 21. The outer wall of the third tube 22 is at least sealed and connected to the port of the first tube 11. Thus, the first tube 11 and the third tube 22 cooperate to form an air passage, and the first tube 11 and the second tube 21 cooperate to form a wiring space.

[0025] Compared with the prior art, the present invention has a simple and reasonable structure. By controlling the movement of the locking component, the locking position of the limiting post is switched between a stable locking position in the positioning port and an unlocking position where the limiting post can slide out of the positioning port, thereby controlling the locking or unlocking between the first tube and the second tube. The telescopic operation is convenient and the locking stability is good.

[0026] The above-disclosed embodiments are merely examples of the present utility model. However, the present utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A vacuum cleaner hose with adjustable length, characterized in that, Includes a first tube assembly, a second tube assembly, and a locking assembly disposed between the first tube assembly and the second tube assembly: The first tube assembly includes a first tube body, and the second tube assembly includes a second tube body fitted over the first tube body; The locking assembly includes a slotted part, a mating part, a locking part, and a limiting post. The slotted part is axially extended and disposed on the outer wall of the first tube. The slotted part has a plurality of positioning holes spaced apart on at least one side wall corresponding to its slot. The mating part is disposed on the second tube and has a movably fitted receiving groove in the slotted part. The receiving groove has a notch on at least one side wall corresponding to its slot that can communicate with any positioning hole on the corresponding side of the slotted part. The locking member is movably disposed within the receiving groove of the mating member and can switch between a locked position and an unlocked position. The limiting post is constrained within the space between the locking member and the recessed structure and is configured as follows: When the locking member is in the locked position, the limiting post is constrained so that part of it is inserted into the positioning port of the slot member through the notch, and at this time the movement between the first tube and the second tube is restricted. When the locking member is in the unlocked position, the limiting post can move away from the positioning port of the slot member, and at this time the length between the first tube and the second tube can be adjusted.

2. The adjustable-length vacuum cleaner hose according to claim 1, characterized in that, A spring is provided between at least one end of the locking member and the end of the groove of the receiving groove, the spring causing the locking member to always have a tendency to move toward the locking position and remain stably in the locking position.

3. A vacuum cleaner hose with adjustable length according to claim 1 or 2, characterized in that, The sidewall of the locking member has a wave-shaped section including a crest and a trough. When the crest of the locking member is opposite to the notch, it is in the locked position, and when the trough of the locking member is opposite to the notch, it is in the unlocked position.

4. The adjustable-length vacuum cleaner hose according to claim 3, characterized in that, The wavy section on the sidewall of the locking member includes a crest and two troughs located on either side of the crest.

5. The adjustable-length vacuum cleaner hose according to claim 3, characterized in that, The distance that the locking member slides towards one end of the groove in the receiving slot is the same as the distance between the crest and the trough.

6. The adjustable-length vacuum cleaner hose according to claim 1, characterized in that, The fitting component is an annular piece that is fixedly fitted inside the port of the second tube, and the first tube is directionally slidably fitted inside the fitting component.

7. The adjustable-length vacuum cleaner hose according to claim 6, characterized in that, The second tube body is provided with a control element for driving the locking element to slide within the receiving groove.

8. The adjustable-length vacuum cleaner hose according to claim 1, characterized in that, The slotted component has positioning openings on both sides of its side walls, and the positioning openings on both sides are arranged in a corresponding manner.

9. The adjustable-length vacuum cleaner hose according to claim 1, characterized in that, The second tube assembly also includes a third tube body that is linked and movably fitted inside the first tube body, and the outer wall of the third tube body is at least sealed and connected to the port of the first tube body.

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