WO2021077876A1

WO2021077876A1 - Rod assembly and cleaning apparatus having same

Info

Publication number: WO2021077876A1
Application number: PCT/CN2020/109819
Authority: WO
Inventors: 戴雄; 夏磊; 褚小明; 刘琪
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2019-10-24
Filing date: 2020-08-18
Publication date: 2021-04-29
Also published as: CN112709737A

Abstract

A rod assembly and a cleaning apparatus having same. The rod assembly comprises a first rod (1) and a second rod (2) that are detachably inserted; one end of the first rod (1) is provided with a first connection portion (10); one end of the second rod (2) is provided with a second connection portion (20); a clamping member (11) outwardly extending is provided on the first connection portion (10); an opening (21) is formed on the second connection portion (20); an unlocking button (22) is formed by means of radial and outward extension from the opening (21) to any one axial end of the second rod (2); the unlocking button (22) comprises a first end (221) for bearing a force and a second end (222) for clamping the clamping member (11) that are provided opposite to each other in an insertion direction; the projection of the second end (222) on the second rod (2) is located in the opening (21); the first connection portion (10) is inserted into the second connection portion (20); the clamping member (11) slides through the second end (222) and then is abutted against the second end (222), so that the first connection portion (10) is locked with the second connection portion (20); under the action of the force, the first end (221) drives the unlocking button (22) to move around a supporting point (12) along a first direction, so that the second end (222) is separated from the clamping member (11), and thus, the first connection portion (10) and the second connection portion (20) are unlocked.

Description

Rod assembly and cleaning device with same

Technical field

The invention relates to the field of cleaning devices, in particular to a rod assembly and a cleaning device having the same.

Background technique

At present, in order to facilitate the use of users, many cleaning devices will be connected with a long rod to connect the cleaning accessory at the tail of the long rod to expand the scope of use; when two or more long rods are connected, they are generally in-line fit, and rely on The friction between the two rods prevents the two from separating. This connection method is easy to loosen during the use of the long rod.

Summary of the invention

The object of the present invention is to provide a rod assembly and a cleaning device having the rod assembly.

Therefore, the present invention provides a rod assembly, which includes a first rod (1) and a second rod (2) that are detachably plugged in. One end of the first rod (1) is provided with a first connecting portion (10), so One end of the second rod (2) is provided with a second connecting portion (20); the first connecting portion (10) is provided with a clamping member (11) extending radially outward, and the second connecting portion There is an opening on the upper part, and an unlocking button is formed after the opening radially extends outward from any end of the second rod axial direction. The unlocking button (22) includes oppositely arranged in the plugging direction for receiving The first end (221) of the force and the second end (222) for clamping the clamping member, the projection of the second end (222) on the second rod is located in the opening; The first connecting portion (10) is inserted into the second connecting portion (20), and the clamping member (11) slides over the second end and abuts against the second end (222) so that the first The connecting portion (10) is locked with the second connecting portion (20); the inner end is provided with an outwardly extending fulcrum (12), and the first end (221) is forced to drive the unlocking button (22) around the The fulcrum (12) moves along the first direction to separate the second end (222) from the clip (11), and the first connecting portion (10) and the second connecting portion (20) are unlocked .

As an optional technical solution, the first connecting portion (10) is provided with a guiding inclined surface (13), and the guiding inclined surface (13) extends along the insertion direction and gradually moves away from the first rod (1) in the radial direction. ); the first connecting portion (10) is inserted into the second connecting portion (20), and the inner wall of the second connecting portion (20) is attached to the guiding inclined surface (13).

As an optional technical solution, the outer surface of the first connecting portion (10) is provided with an outwardly extending rib (14), and the first connecting portion (10) is inserted into the second connecting portion (20) , The end surface of the second connecting portion (20) abuts the convex rib (14).

As an optional technical solution, the first connecting portion (10) is locked with the second connecting portion (20), and the distance between the end surface of the first connecting portion (10) and the inner end is defined as the first The distance (L1) defines the distance between the inner end and the second end of the unlock button (22) as a second distance (L2), and the first distance (L1) is greater than the second distance ( L2) half.

As an optional technical solution, the distance between the second end (221) of the unlocking button (22) and the end surface of the second connecting portion (20) is defined as a third distance (L3), and the third distance (L3) is defined as The distance (L3) is greater than half of the second distance (L2).

As an optional technical solution, the first connecting portion (10) and the second connecting portion (20) are locked to define the end surface of the first connecting portion (10) and the end surface of the second connecting portion (20) The distance between is the fourth distance (L4); the ratio of the fourth distance (L4) to the inner diameter dimension (d) of the second connecting portion (20) is greater than 1.5.

As an optional technical solution, the rod assembly further includes a third rod (3) detachably plugged into the second rod (2), and one end of the third rod (3) is provided with the first rod (3). The connecting portion (10'); one end of the first rod (1) is provided with the first connecting portion (10), and the opposite end is provided with the second connecting portion (20'); the first rod (1) The first connecting portion (10) of (1) can be locked with the second connecting portion (20) of the second lever (2), and the second connecting portion (20') of the first lever (1) can be locked with The first connecting portion (10') of the third rod (3) is locked.

As an optional technical solution, a cleaning accessory is provided at the other end of the third rod.

As an optional technical solution, the clamping member is a continuous protrusion.

Another aspect of the present invention discloses a cleaning device. The cleaning device includes a main body and the rod assembly as described above, and the rod assembly is connected to the main body.

Compared with the prior art, the rod assembly disclosed in the present invention is provided with a first connecting portion on the first rod and a second connecting portion on the second rod, and the first connecting portion and the second connecting portion are locked, thereby The first rod and the second rod can be plugged together to connect the rod components; at the same time, by setting the unlocking button, the first connecting part and the second connecting part can be unlocked when the unlocking button is stressed. The rod assembly can be easily disassembled. The rod assembly disclosed in the present invention can be easily inserted or disassembled, and the connection of the rod assembly is not easy to loosen, which is convenient for users to use.

Description of the drawings

Fig. 1 is a schematic diagram of the structure of a rod assembly in an embodiment of the present invention;

Fig. 2 is an enlarged schematic diagram inside the dashed circle in Fig. 1;

Fig. 3 is an enlarged schematic view of the second end of the second rod in Fig. 1;

4 is a schematic cross-sectional view along the line AA in the dashed circle in FIG. 1;

Fig. 5 is a perspective schematic view of the rod assembly in Fig. 1 applied to a vacuum cleaner after the assembly is completed;

Fig. 6 is an enlarged schematic diagram inside the dashed circle in Fig. 5;

Fig. 7 is a schematic cross-sectional view taken along line BB of Fig. 5;

FIG. 8 is a schematic cross-sectional view along the BB line in the dashed circle in FIG. 6; FIG.

Fig. 9 is a partial cross-sectional schematic diagram of the rod assembly in the prior art after assembly;

Fig. 10 is a schematic partial cross-sectional view of the rod assembly in another embodiment of the present invention after assembling.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and the structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

It should be understood that the terms such as "upper", "above", "below", "below" and the like used herein to indicate a relative position in space are for the purpose of facilitating explanation to describe a unit or feature as shown in the accompanying drawings. The relationship to another unit or feature. The terms of relative spatial position may be intended to include different orientations of the device in use or operation other than those shown in the figures.

As shown in FIGS. 1-8, an embodiment of the present invention discloses a rod assembly, which includes a first rod 1 and a second rod 2 that are detachably plugged in, and one end of the first rod 1 is provided with a first connecting portion 10. One end of the second rod 2 is provided with a second connecting portion 20. The first connecting portion 10 is provided with a clamping member 11 extending radially outward, and the second connecting portion 20 is provided with an opening 21, from the opening 21 at either end of the second rod 2 in the axial direction ( In this embodiment, the inner end is taken as an example for description) The unlocking button 22 is formed after radially extending outward, and the inner end is farther away from the end surface of the second connecting portion than the other end of the opening. The unlocking button 22 is included in A first end 221 for receiving force and a second end 222 for clamping the clamping connection 11 are arranged opposite in the insertion direction, the first end 221 and the second end 222 are respectively located on both sides of the inner end of the opening 21 And, the projection of the second end 222 on the second rod is located within the opening. The first connecting portion 10 is inserted into the second connecting portion 20, and the clamping member 11 slides over the second end 222 and abuts against the second end 222 to lock the first connecting portion 10 and the second connecting portion 20. In this embodiment, the projection of the second end 222 on the second rod 2 is located in the opening 21. In this way, after the first lever 1 and the second lever 2 are locked, the mating length of the two can be effectively lengthened. Specifically, as shown in FIG. 9, in the prior art, the unlocking button 22' cooperates with the clamping member 11' Compared with the prior art, the present invention can increase the length between the fulcrum 12 of the unlocking button 22 and the second end 222 (approximately the length of L2) compared with the prior art. Increase the strength and stability of the combination of the two.

The inner end of the opening 21 is provided with an outwardly extending fulcrum 12, the first end 221 is forced to drive the unlocking button 22 to move around the fulcrum 12 in a first direction so that the second end 222 and the The clamping member 11 is separated, and the first connecting portion 10 and the second connecting portion 20 are unlocked.

In the rod assembly disclosed in the present invention, a first connecting portion 10 is provided on the first rod 1, a second connecting portion 20 is provided on the second rod 2, and the first connecting portion 10 is inserted into the second connecting portion 20 and connected to the second connecting portion 20. The connecting portion 20 is locked, so that the first rod 1 and the second rod 2 can be plugged together to connect the rod assembly. In addition, by providing the unlocking button 22 on the second connecting portion, the first connecting portion 10 and the second connecting portion 20 can be unlocked when the unlocking button 22 is stressed, so that the lever assembly can be easily detached. The rod assembly disclosed in the present invention can be easily inserted and locked, or unlocked and disassembled, and the connection of the rod assembly is not easy to loosen, which is convenient for users to use.

In another embodiment, a second connecting portion may be provided at one end of the first rod, and a first connecting portion may be provided at one end of the second rod, which can also achieve plug-in locking of the first rod and the second rod.

Furthermore, as shown in FIG. 4, the first connecting portion 10 is provided with a guiding inclined surface 13, and the guiding inclined surface 13 extends along the insertion direction and gradually moves away from the central axis of the first rod 1 in the radial direction. The first connecting portion 10 is inserted into the second connecting portion 20, and the inner wall of the second connecting portion 20 is attached to the guiding inclined surface 13, that is, between the first connecting portion 10 and the second connecting portion 20 It is the matching method of taper. In the embodiment of the present invention, the guiding inclined surface 13 is arranged around a circumference of the first connecting portion 10. In this way, after the first connecting portion 10 is inserted into the second connecting portion 20, the inner wall of the second connecting portion 20 is gradually expanded by the guiding inclined surface 13. At this time, the inner wall of the second connecting portion 20 will tightly wrap the first connecting portion 10. In other words, the taper fit between the first connecting portion 10 and the second connecting portion 20 makes the connection between the two closer and firmer.

Preferably, as shown in FIGS. 5-8, the first connecting portion 10 and the second connecting portion 20 are locked, and the distance between the end surface of the first connecting portion 10 and the inner end of the opening 21 is defined as The first distance L1 defines the distance between the inner end and the first end 222 of the unlocking button 22 as a second distance L2, and the first distance L1 is greater than half of the second distance L2.

Further, the distance between the second end 222 of the unlocking button 22 and the end surface of the second connecting portion 20 is defined as a third distance L3, and the third distance L3 is greater than half of the second distance L2. The first distance L1 and the second distance L3 are both set to be greater than half of the second distance L2, so that there are mating sections of sufficient length on both sides of the unlocking button, and the connection strength is increased, so that the first rod 1 and the second rod 1 The locking connection of the rod 2 is more stable and not easily deformed.

Preferably, the first connecting portion 10 and the second connecting portion 20 are locked, and the distance between the end surface of the first connecting portion 10 and the end surface of the second connecting portion 20 is defined as a fourth distance L4. The ratio of the fourth distance L4 to the inner diameter dimension d of the second connecting portion 20 is greater than 1.5. The fourth distance L4 is the length of the overlapping portion of the first rod 1 and the second rod 2 when the first rod 1 and the second rod 2 are connected. The ratio of the fourth distance L4 to the inner diameter dimension d of the second connecting portion 20 can be set to be greater than 1.5, so that the first rod 1 and the second rod 2 have a mating connection section of sufficient length to increase the strength of the connection between the two and make the connection not easy to deform.

In this embodiment, the first rod 1 and the second rod 2 are round rods. Of course, in other embodiments, the first rod 1 and the second rod 2 may also be cylindrical rods, etc., which are not limited.

If it is a round rod, the problem of rotation of the two rods in the assembled state needs to be considered. In other embodiments, as shown in Figures 2, 3, and 8, the first end 10 and the second end 20 respectively have matching One of the convex block 15 and the groove 23 is similarly, in order to ensure the smooth assembly of the two, the convex block 15 and the groove 23 have matching guiding slopes. In this embodiment, the protrusion 15 is disposed on the first rod 1, and the groove 23 is disposed on the second rod 2. In the locked state, the protrusion 15 and the groove 23 cooperate to limit the first end 10 and the second end. The movement of the portion 20 in the radial direction, that is, the two rods do not rotate relative to each other.

As shown in FIG. 5, in the embodiment of the present invention, the rod assembly further includes a third rod 3 detachably inserted into the second rod, and one end of the third rod 3 is provided with the second connection部20'. One end of the second rod 2 is provided with the second connecting portion 20, and the opposite end is provided with the first connecting portion 10'. The first connecting portion 10 of the first lever 1 can be locked with the second connecting portion 20 of the second lever 2, and the first connecting portion 10' of the second lever 2 can be connected to the third lever 3 The second connecting portion 20' is locked. In other words, the two ends of the second rod 2 can be respectively connected to the first rod 1 and the third rod 2, so that the combination of the rod components is more free. Similarly, the structures of the two ends of the second rod and the third rod can also be exactly the same as the structures of the two ends of the first rod. In this way, the aforementioned first rod 1 can be used as a standard part, and multiple standard parts can be based on each other. Multiple rods can be freely combined with the required length.

In order to meet the different requirements of the degree of tightness between the rods, as shown in FIG. 10, the present invention also provides another optimized embodiment. The difference from the above-mentioned embodiment is that the clamping member 11" of this embodiment is similar to a sawtooth shape. Continuously protruding, the second end 222" of the unlocking button 22" is clamped with different protrusions of the clamping member 11", which can achieve the requirements of clamping with different tightness.

The above rod combination can be applied to a cleaning device such as a vacuum cleaner. In the locked state, one of the other end of the first rod 1 or the other end of the second rod 2 is connected to the cleaning accessory; in the unlocked state, the first rod 1 or One of the second rods 2 is connected to the cleaning accessory. For example, as shown in Figure 5, in the locked state, the other end of the first rod 1 is connected to a hose, and the other end of the third rod 3 is connected to a cleaning accessory (such as a floor brush); in the unlocked state, the first rod 1 The first end or the other end of the second rod 2 is connected to the aforementioned cleaning accessory.

It should be understood that although this specification is described in accordance with the embodiments, not every embodiment only includes an independent technical solution. This narration in the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible implementations of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementations or implementations made without departing from the technical spirit of the present invention All changes shall be included in the protection scope of the present invention.

Claims

A rod assembly, characterized in that it comprises a first rod (1) and a second rod (2) that can be detachably plugged in. One end of the first rod (1) is provided with a first connecting portion (10), and One end of the second rod (2) is provided with a second connecting portion (20); the first connecting portion (10) is provided with a clamping member (11) extending radially outward, and the second connecting portion The upper has an opening, and an unlocking button is formed after the opening is radially extended outward from either end of the second rod axial direction. The unlocking button (22) includes an unlocking button that is arranged oppositely in the plugging direction. The first end (221) that receives the force and the second end (222) for clamping the clamping member, and the projection of the second end (222) on the second rod is located in the opening内; wherein, the first connecting portion (10) is inserted into the second connecting portion (20), and the clip (11) slides over the second end and then abuts against the second end (222) So that the first connecting portion (10) and the second connecting portion (20) are locked; either end is provided with an outwardly extending fulcrum (12), and the first end (221) is forced to drive the unlocking The button (22) moves around the fulcrum (12) in the first direction to separate the second end (222) from the clip (11), and the first connection portion (10) and the second connection The part (20) is unlocked.
The rod assembly according to claim 1, characterized in that the first connecting portion (10) is provided with a guiding inclined surface (13), and the guiding inclined surface (13) extends along the insertion direction and gradually moves away in the radial direction. The central axis of the first rod (1); the first connecting portion (10) is inserted into the second connecting portion (20), and the inner wall of the second connecting portion (20) is attached to the guiding inclined surface ( 13).
The rod assembly according to claim 1, wherein the outer surface of the first connecting portion (10) is provided with outwardly extending ribs (14), and the first connecting portion (10) is inserted into the The second connecting portion (20), the end surface of the second connecting portion (20) abuts against the convex rib (14).
The rod assembly according to claim 1, wherein the first connecting portion (10) and the second connecting portion (20) are locked to define the end surface of the first connecting portion (10) and the opening The distance between the inner ends of the is the first distance (L1), the inner end is farther away from the end surface of the second connecting portion than the other end of the opening, and defines the inner end and the unlocking button The distance between the second ends of (22) is a second distance (L2), and the first distance (L1) is greater than half of the second distance (L2).
The rod assembly according to claim 4, characterized in that the distance between the second end (221) of the unlocking button (22) and the end surface of the second connecting portion (20) is defined as a third distance ( L3), the third distance (L3) is greater than half of the second distance (L2).
The rod assembly according to claim 1, wherein the first connecting portion (10) and the second connecting portion (20) are locked to define the end surface of the first connecting portion (10) and the second connecting portion (10). The distance between the end surfaces of the connecting portion (20) is a fourth distance (L4); the ratio of the fourth distance (L4) to the inner diameter dimension (d) of the second connecting portion (20) is greater than 1.5.
The rod assembly according to claim 1, characterized in that the rod assembly further comprises a third rod (3) detachably plugged into the second rod (2), and the third rod (3) One end is provided with the first connecting portion (10'); one end of the first rod (1) is provided with the first connecting portion (10), and the opposite end is provided with the second connecting portion (20') ); The first connecting portion (10) of the first rod (1) can be locked with the second connecting portion (20) of the second rod (2), and the second connection of the first rod (1) The part (20') can be locked with the first connecting part (10') of the third rod (3).
The rod assembly according to claim 7, wherein the other end of the third rod is provided with a cleaning accessory.
The rod assembly according to claim 1, wherein the clamping member is a continuous protrusion.
A cleaning device, characterized in that the cleaning device comprises a main body and the rod assembly according to any one of claims 1-9, and the rod assembly is connected with the main body.