CN211212932U - Extension type stretching push rod assembly with rotary handle and dust collector - Google Patents

Abstract

The utility model discloses a twist grip extension formula stretch push rod subassembly and dust catcher belongs to the clean technical field of household electrical appliances and industry lease, for solving current push rod length limited, extend after stable scheduling problem design inadequately. The utility model discloses a rotary handle extension type stretching push rod component comprises a stretching push rod and a handle, wherein the handle is hinged on the stretching push rod, and the handle can rotate around the hinged part to extend the length of the stretching push rod; when the handle rotates to the set position, the locking structure is started, so that the handle and the stretching push rod are relatively fixed. The utility model discloses a rotary handle extension type stretching push rod component and a dust collector solve the problems of limited length when the number of sections of the existing stretching push rod is small, poor stability when the number of sections is large, and the like; the locking structure of the handle enables the handle and the stretching push rod to be relatively fixed, so that the dust collector can be conveniently and stably pushed and pulled.

Description

Extension type stretching push rod assembly with rotary handle and dust collector

Technical Field

The utility model relates to a clean technical field of household electrical appliances and industry lease especially relates to a twist grip extension formula extension push rod subassembly and including the dust catcher of this extension push rod.

Background

The vacuum cleaner is a household appliance for cleaning indoor and outdoor sanitation. When dust is sucked, a user needs to drag the dust collector to move in an area to be cleaned, so that the aim of thorough cleaning is fulfilled.

In order to save space when storing and facilitate the dragging of the cleaner by the user when using, the push rod of the cleaner is designed to be a stretching type. When the push rod is contracted, the whole push rod is basically attached to the edge of the dust collector, so that the occupied space is small; when the push rod extends out, a user can grasp the push rod without bending over a large angle, and the use is convenient. The structural defects are: when the extension push rod is two sections, the extension height is limited, and a user who is tall is inconvenient to use; when the stretching push rod is in three sections, the push rod shakes a lot after stretching out, and the use experience is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a twist grip extension formula extension push rod subassembly that can steadily increase push rod length.

Another object of the present invention is to provide a vacuum cleaner which is easy to push and pull.

To achieve the purpose, on one hand, the utility model adopts the following technical scheme:

a rotary handle extension type stretching push rod assembly comprises a stretching push rod and a handle, wherein the handle is hinged to the stretching push rod and can rotate around a hinged portion to extend the length of the stretching push rod; when the handle rotates to a set position, the locking structure is started, and the handle and the stretching push rod are relatively fixed.

Particularly, locking structure includes handle button, mounting and elastic component, the elastic component sets up handle button with between the tensile push rod, the mounting is fixed on the tensile push rod, the handle button cover is established on the mounting and can follow mounting reciprocating motion.

Particularly, the handle button comprises a cylindrical button main body, a button through hole for penetrating the fixing piece is formed in the button main body, and a button positioning block is formed on the outer peripheral surface of the button main body and extends towards the radial outer side.

Particularly, the button through hole comprises two sections of structures which are coaxially arranged and have different diameters, a limiting step surface is formed between the two sections of structures, and a top cover bottom surface matched with the limiting step surface is arranged on the fixing piece.

Particularly, the handle button further comprises a pressing part arranged at the end head of the button main body, and a sliding groove with a set length is formed in the peripheral surface of the pressing part; and a notch is formed on the edge of the sliding groove close to the side of the button positioning block, button flanges are formed on two sides of the notch, and the button flanges are aligned with the button positioning block.

Particularly, the hinged portion of the handle comprises a handle through hole for penetrating the handle button, a handle positioning block and a handle clamping block are formed on the side wall of the handle through hole in an extending mode towards the radial inner side, the handle positioning block is matched with the button positioning block, and the handle clamping block can slide in the sliding groove.

Particularly, a U-shaped groove is formed in the side wall of the handle through hole, an elastic sheet is formed in the U-shaped groove, and the handle clamping block is arranged on the inner side face of the free end of the elastic sheet.

Particularly, the elastic member is sleeved on the fixing member, one end of the elastic member abuts against the handle button, and the other end of the elastic member abuts against the stretching push rod.

Particularly, the stretching push rod comprises a pull rod button, a push block, a wave wheel and an unlocking rod, the wave wheel is hinged on the stretching push rod, and the unlocking rod is positioned in the stretching push rod; when the pull rod button is pressed downwards, the push block can be pushed to move transversely, the push block further pushes the impeller to rotate around a hinged joint of the impeller, and the impeller presses the unlocking rod.

Particularly, the contact surface of the pull rod button and the push block is an inclined surface.

Particularly, the stretching push rod further comprises a handle fixing plate and a bottom plate which are buckled with each other, the push block is located in a cavity formed by the handle fixing plate and the bottom plate in a surrounding mode, and the pull rod button is exposed on the surface of the stretching push rod.

On the other hand, the utility model adopts the following technical scheme:

a dust collector comprises a machine body and further comprises the rotary handle extension type stretching push rod assembly, and the rotary handle extension type stretching push rod assembly is arranged on the machine body.

The utility model discloses the handle of twist grip extension formula extension push rod subassembly articulates on tensile push rod and can rotate the length in order to prolong tensile push rod around articulated portion, has solved the limited, the many times poor stability scheduling problem of festival of length when current tensile push rod festival number is few.

The utility model comprises the rotary handle extension type stretching push rod component, the handle is utilized to increase the length of the stretching push rod, and the problems of limited length when the number of sections of the existing stretching push rod is small, poor stability when the number of sections is large and the like are solved; when the handle rotates to the set position, the locking structure is started, so that the handle and the stretching push rod are relatively fixed, and the dust collector is conveniently and stably pushed and pulled.

Drawings

FIG. 1 is a schematic view of a vacuum cleaner according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the stretching rod according to the embodiment of the present invention;

fig. 3 is a schematic structural view of the stretching rod according to the embodiment of the present invention after the handle fixing plate is removed;

fig. 4 is a schematic structural view of a handle fixing plate according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the stretching rod according to the embodiment of the present invention after the handle fixing plate and the handle are removed;

FIG. 6 is a schematic view of a handle according to an embodiment of the present invention;

FIG. 7 is a second schematic structural view of a handle according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a handle button according to an embodiment of the present invention;

fig. 9 is a second schematic structural view of a handle button according to an embodiment of the present invention;

fig. 10 is a schematic structural view of the extension push rod according to the embodiment of the present invention after the handle fixing plate, the handle and the extension push rod casing are removed;

FIG. 11 is a cross-sectional view of the extension push rod with the handle in a first position according to an embodiment of the present invention;

FIG. 12 is an enlarged view of a portion of FIG. 11 at C;

FIG. 13 is a first angled cross-sectional view of the handle of the present invention shown after rotation of the handle through a certain angle to extend the push rod;

fig. 14 is a partial enlarged view at B in fig. 13;

FIG. 15 is a second angular cross-sectional view of the handle of the present invention rotated a certain angle to extend the push rod;

FIG. 16 is an enlarged view of a portion of FIG. 15 at A;

FIG. 17 is a first angled cross-sectional view of the extension push rod with the handle in a second position according to an embodiment of the present invention;

fig. 18 is a second angular cross-sectional view of the extension push rod with the handle in the second position according to an embodiment of the present invention.

In the figure:

1. stretching the push rod; 2. a handle; 4. a body; 11. a handle fixing plate; 12. a pull rod button; 13. a push block; 14. an impeller; 15. an unlocking lever; 16. a base plate; 21. a handle through hole; 22. a handle positioning block; 23. a handle fixture block; 24. a U-shaped groove; 25. a spring plate; 31. a handle button; 32. a fixing member; 33. an elastic member; 111. a limiting groove; 112. a threaded hole; 113. a convex edge; 311. a button body; 312. a button through hole; 313. a button positioning block; 314. a pressing part; 315. a chute; 316. a button rib; 317. a limiting step surface; 321. a top cover bottom surface.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment discloses a rotary handle extension type extension push rod assembly and a dust collector, as shown in fig. 1, the dust collector includes a machine body 4 and a rotary handle extension type extension push rod assembly arranged on the machine body 4. As shown in fig. 2 to 18, the extension push rod assembly includes an extension push rod 1 and a handle 2, the handle 2 is hinged to the extension push rod 1, and the handle 2 can rotate around the hinge portion to the extension direction or the similar direction of the extension push rod 1, the length of the handle 2 is used to increase the length of the extension push rod 1, and the problems of limited length when the number of sections of the existing extension push rod is small, poor stability when the number of sections is large, and the like are solved.

When the handle 2 rotates to the set position, the locking structure is started, so that the handle 2 and the stretching push rod 1 are relatively fixed, and the dust collector is conveniently and stably pushed and pulled. As shown in fig. 3 to 4, the locking structure preferably includes a grip button 31, a fixing member 32, and an elastic member 33, the elastic member 33 being disposed between the grip button 31 and the tension push rod 1 for applying an elastic force to the grip button 31; the handle button 31 is sleeved on the fixing piece 32, the fixing piece 32 is fixed on the stretching push rod 1, and the handle button 31 can reciprocate along the fixing piece 32.

As shown in fig. 6 and 7, the hinge portion of the handle 2 includes a handle through hole 21 for passing the handle button 31 therethrough, and a plurality of handle positioning blocks 22 are formed on a sidewall of the handle through hole 21 to extend radially inward. One or more U-shaped grooves 24 are formed in the side wall of the handle through hole 21, and a strip-shaped elastic sheet 25 is formed in the half-surrounded range of the U-shaped grooves 24. One end of the elastic sheet 25 is fixedly connected with the side wall of the through hole 21, a handle clamping block 23 is arranged on the inner side surface of the other end, the handle clamping block 23 is located outside the range formed by the surrounding of the handle positioning blocks 22, and the handle clamping block 23 is located on the extension line of the middle point of the two adjacent handle positioning blocks 22, namely, the handle clamping block 23 and the handle positioning blocks 22 are arranged in a staggered mode. The side surface of the handle fixture block 23 facing the outer side of the handle through hole 21 is an inclined surface.

As shown in fig. 8 and 9, the handle button 31 includes a cylindrical button main body 311, a button through hole 312 for passing through the fixing member 32 is formed in the button main body 311, the button through hole 312 includes two coaxially arranged structures with a large outer diameter and a small inner diameter, a limiting step face 317 is formed between the two structures, and a top cover bottom face 321 matched with the limiting step face 317 is arranged on the fixing member 32. A plurality of button positioning blocks 313 are formed on the outer circumferential surface of the button body 311 to extend radially outward, the handle positioning blocks 22 can just fill the gap between two adjacent button positioning blocks 313, and each button positioning block 313 can perform a certain range of linear motion between two adjacent handle positioning blocks 22, thereby locking or unlocking the handle 2.

In addition to the above structure, the handle button 31 further includes a pressing portion 314 disposed at an end of the button body 311, a sliding groove 315 having a predetermined length is formed on an outer circumferential surface of the pressing portion 314, and the handle latch 23 can slide in the sliding groove 315. The two end portions of the sliding groove 315 limit the sliding range of the handle latch 23, thereby limiting the rotation angle of the handle 2. A notch is formed on the edge of the sliding groove 315 close to the button positioning block 313, button flanges 316 are formed on two sides of the notch, and the button flanges 316 are aligned with the button positioning block 313. The side of the button rib 316 facing the button positioning block 313 is beveled.

In order to better provide the handle button 31 with the elastic force, the elastic member 33 is sleeved on the fixing member 32, and one end of the elastic member 33 abuts against the handle button 31 and the other end abuts against the tension push rod 1. The elastic member 33 is preferably a compression spring which is elastically deformed to accumulate an elastic force when the handle button 31 is pressed; when the force for pressing the handle button 31 is removed, the pressure spring is elastically deformed again, the elastic force is released, and the handle button 31 is pushed to reset.

The use method of the handle 2 comprises the following steps:

as shown in fig. 2, 3, 5 and 10, the stretch pusher 1 includes a handle fixing plate 11, a lever button 12, a pusher 13, a pulsator 14, an unlocking lever 15 and a base plate 16. The handle fixing plate 11 and the bottom plate 16 can be buckled, the push block 13 is positioned in a cavity formed by the handle fixing plate 11 and the bottom plate 16, and the pull rod button 12 is exposed on the surface of the stretching push rod 1. The fan-shaped impeller 14 is hinged on the stretching push rod 1 and can rotate around a hinged point, the unlocking rod 15 is positioned in the stretching push rod 1, one side end of the unlocking rod 15 is close to the impeller 14, and the other side end of the unlocking rod is aligned with the locking structure of the stretching push rod 1.

The bottom plate 16 is formed with a slide way in which the push block 13 can slide. The contact surface of the pull rod button 12 and the push block 13 is an inclined surface, when a user presses the pull rod button 12 downwards, the pull rod button 12 at the contact part with the push block 13 is gradually widened, the pull rod button 12 pushes the push block 13 towards the two sides, and then the push block 13 moves transversely; the end of the push block 13 abuts against the side of the wave wheel 14, so as to push the wave wheel 14 to rotate around the hinge point, the bottom surface of the wave wheel 14 abuts against the upper end of the unlocking rod 15, so as to press the unlocking rod 15 downwards, and trigger the locking structure of the stretching push rod 1 to unlock. After unlocking, the stretching push rod 1 can be freely stretched, and after the stretching push rod 1 is pulled to the maximum height, the stretching push rod is locked.

It should be noted that the grip knob 31 can move only in the axial direction but cannot rotate about the axis, and the grip 2 cannot be fixed if the grip knob 31 can rotate about the axis. The specific method of preventing the handle knob 31 from rotating is not limited, and the related structure in the prior art is also acceptable. In this embodiment, as shown in fig. 4, two ends of the handle fixing plate 11 are formed with a limiting groove 111 matching with the button positioning block 313, the button positioning block 313 is aligned with the limiting groove 111 during installation, then the handle button 31 is pushed into the mounting holes at two ends of the handle fixing plate 11, and then the bolt is inserted into the button through hole 312, and the end of the bolt is screwed into the threaded hole 112 on the handle fixing plate 11, so that the handle button 31 is fixed in the radial direction and the circumferential direction and can only move within a certain range along the axial direction. The two ends of the handle fixing plate 11 are further provided with convex edges 113 for clamping the handle 2 to prevent the handle 2 from separating from the handle fixing plate 11.

The working process of the handle 2 is as follows:

when the front handle 2 is at the first position, one section of the outer side of each button positioning block 313 is clamped between the two handle positioning blocks 22, one section of the inner side of each button positioning block 313 is clamped in the limiting grooves 111 at the two ends of the handle fixing plate 11, at this time, the handle 2 cannot rotate, and the handle clamping block 23 is tightly abutted against the button flange 316 at the middle under the elastic action of the elastic member 33. As shown in fig. 8, 9, 11 and 12, when the handle button 31 is pressed inward, the elastic member 33 contracts, the inclined surface of the button rib 316 presses the inclined surface of the handle latch 23, the elastic piece 25 is elastically deformed to a certain extent, and the button rib 316 goes over the handle latch 23; after the pressure applied on the handle clamping block 23 disappears, the elastic sheet 25 resets, and the handle clamping block 23 enters the sliding groove 315. When the user releases his hand, the button positioning block 313 completely enters the limiting grooves 111 at the two ends of the handle fixing plate 11, the handle positioning block 22 is completely separated from the button positioning block 313, and the handle 2 is in a rotatable state. At this time, although the elastic member 33 continuously applies the elastic force to the handle button 31, the handle button 31 cannot move outward due to the blocking of the handle latch 23, so that the handle button 31 is self-locked, and the handle 2 is continuously in a rotatable state.

As shown in fig. 13 to 16, the handle 2 has two rotational directions, which are toward both ends of the slide groove 315. The principle of operation of the handle 2 is the same regardless of the direction selected by the user. The handle stopper 23 continuously slides in the sliding groove 315, and when the handle stopper 23 completely separates from the button rib 316 and aligns with the notch on the edge of the sliding groove 315, the handle button 31 moves outward under the elastic force of the elastic member 33. At this time, the handle positioning block 22 is aligned with the button positioning block 313, so that the button positioning block 313 abuts against the handle positioning block 22 after the handle button 31 moves for a certain distance, at this time, the handle button 31 is still self-locked, and the handle 2 is continuously in a rotatable state.

As shown in fig. 17 and 18, as the handle 2 is further rotated, the handle stopper 23 slides along the outer side surface of the button rib 316, and the handle positioning block 22 and the button positioning block 313 gradually start to be misaligned. When the handle 2 is rotated to the second position, the handle positioning blocks 22 and the button positioning blocks 313 are completely staggered, the handle button 31 is moved outward again under the elastic force of the elastic member 33, and the plurality of handle positioning blocks 22 and the plurality of button positioning blocks 313 are respectively clamped into the recessed positions of each other (similar to two gears being engaged with each other). At this time, the limit step surface 317 of the handle button 31 abuts against the top cover bottom surface 321 of the fixing member 32, and the handle button 31 is prevented from moving outwards continuously; one section of the outer side of each button positioning block 313 is clamped between the two handle positioning blocks 22, one section of the inner side of each button positioning block is clamped in the limiting grooves 111 at the two ends of the handle fixing plate 11, and the handle 2 cannot rotate relative to the handle fixing plate 11, so that the handle 2 is locked.

In the above usage method, the first position and the second position of the handle 2 are not particularly limited, and may be determined according to specific usage requirements. For example, the first position is that the handle 2 is lifted to be flush with the tension push rod 1, and the second position is that the handle 2 is perpendicular to the tension push rod 1. When the handle 2 is lifted to the same plane as the extension push rod 1, the user facing the cleaner can rotate to push the handle 2 forward or pull the handle 2 backward by pressing the handle button 31, that is, the handle 2 has three locking positions in this embodiment, namely, a vertical position, a forward horizontal position and a backward horizontal position.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (12)

1. A rotary handle extension type stretching push rod assembly is characterized by comprising a stretching push rod (1) and a handle (2), wherein the handle (2) is hinged on the stretching push rod (1), and the handle (2) can rotate around the hinged part to extend the length of the stretching push rod (1); when the handle (2) rotates to a set position, the locking structure is started, and the handle (2) and the stretching push rod (1) are relatively fixed.

2. The extension push rod assembly with a rotary handle according to claim 1, wherein the locking structure comprises a handle button (31), a fixing member (32) and an elastic member (33), the elastic member (33) is arranged between the handle button (31) and the extension push rod (1), the fixing member (32) is fixed on the extension push rod (1), and the handle button (31) is sleeved on the fixing member (32) and can move back and forth along the fixing member (32).

3. The extension push rod assembly of rotary handle according to claim 2, wherein the handle button (31) includes a cylindrical button body (311), a button through hole (312) for passing the fixing member (32) is formed in the button body (311), and a button positioning block (313) is formed on the outer circumferential surface of the button body (311) to extend radially outward.

4. The extension type extension push rod assembly of the rotary handle according to claim 3, wherein the button through hole (312) comprises two coaxially arranged structures with different diameters, a limiting step surface (317) is formed between the two structures, and a top cover bottom surface (321) matched with the limiting step surface (317) is arranged on the fixing member (32).

5. The extension type extension push rod assembly of the rotary handle according to claim 3, wherein the handle button (31) further comprises a pressing part (314) arranged at the end of the button body (311), and a sliding groove (315) with a set length is arranged on the outer peripheral surface of the pressing part (314); a notch is formed in the edge of the sliding groove (315) close to the side of the button positioning block (313), button flanges (316) are formed on two sides of the notch, and the button flanges (316) are aligned with the button positioning block (313).

6. The extension push rod assembly of rotary handle according to claim 5, wherein the hinge portion of the handle (2) comprises a handle through hole (21) for passing through the handle button (31), a handle positioning block (22) and a handle clamping block (23) are formed by extending towards the radial inner side on the side wall of the handle through hole (21), the handle positioning block (22) is matched with the button positioning block (313), and the handle clamping block (23) can slide in the sliding slot (315).

7. The extension type extension push rod assembly of the rotary handle according to claim 6, wherein a U-shaped groove (24) is formed in a side wall of the handle through hole (21), a spring plate (25) is formed inside the U-shaped groove (24), and the handle clamping block (23) is arranged on an inner side surface of a free end of the spring plate (25).

8. The extension push rod assembly of rotary handle according to any one of claims 2 to 7, wherein the elastic member (33) is sleeved on the fixing member (32), one end of the elastic member (33) abuts against the handle button (31), and the other end abuts against the extension push rod (1).

9. The rotary handle extension tensile pushrod assembly according to any one of claims 1 to 7 wherein the tensile pushrod (1) comprises a draw rod button (12), a push block (13), a wave wheel (14) and an unlocking rod (15), the wave wheel (14) is hinged on the tensile pushrod (1), the unlocking rod (15) is located inside the tensile pushrod (1); when the pull rod button (12) is pressed downwards, the push block (13) can be pushed to move transversely, the push block (13) further pushes the impeller (14) to rotate around a hinge point of the impeller, and the impeller (14) presses the unlocking rod (15).

10. The rotary handle extension push rod assembly of claim 9, wherein the contact surface of the pull rod button (12) and the push block (13) is a bevel.

11. The extension type extension push rod assembly of rotary handle according to claim 9, wherein the extension push rod (1) further comprises a handle fixing plate (11) and a bottom plate (16) which are buckled with each other, the push block (13) is located in a cavity formed by the handle fixing plate (11) and the bottom plate (16) in a surrounding mode, and the pull rod button (12) is exposed on the surface of the extension push rod (1).

12. A vacuum cleaner comprising a body (4), characterized by further comprising a rotary handle extension push rod assembly according to any one of claims 1 to 11, said rotary handle extension push rod assembly being provided on said body (4).

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