CN110313868A - Rotating handle prolonged type stretches push-rod assembly and dust catcher - Google Patents

Abstract

The invention discloses a rotary handle extended stretching push rod assembly and a vacuum cleaner, which belong to the technical field of household appliances and industrial rental cleaning, and are designed to solve the problems of limited length of the existing push rod and insufficient stability after stretching. The rotary handle extended stretching push rod assembly of the present invention includes a stretching push rod and a handle, the handle is hinged on the stretching push rod, and the handle can rotate around the hinge to extend the length of the stretching push rod; when the handle rotates to the set After the position, the locking structure is activated, so that the handle and the extension push rod are relatively fixed. The rotary handle extended stretching push rod assembly and the vacuum cleaner of the present invention solve the problems of limited length when the number of stretching push rods is small and poor stability when the number of stretching push rods is large; the locking structure of the handle makes the handle and the stretching push rod relatively fixed, which is convenient Push and pull the vacuum cleaner steadily.

Description

Rotary handle extended extension push rod assembly and vacuum cleaner

technical field

The invention relates to the technical field of household appliances and industrial rental cleaning, in particular to a rotating handle extension type stretching push rod assembly and a vacuum cleaner including the stretching push rod.

Background technique

A vacuum cleaner is a household appliance used for cleaning indoor and outdoor hygiene. When vacuuming, the user needs to drag the vacuum cleaner to move in the area to be cleaned, so as to achieve the purpose of thorough cleaning.

In order to save space when storing and facilitate users to drag when using, the push rod of the vacuum cleaner is designed to be stretched. When the push rod is retracted, the entire push rod is basically attached to the edge of the vacuum cleaner, occupying a small space; when the push rod is extended, the user does not need to bend over at a large angle to grasp the push rod, which is convenient to use. The structural defect is: when the stretching push rod has two sections, the extension height is limited, and it is inconvenient for tall users to use; when the stretching push rod has three sections, the push rod shakes a lot after stretching out, and the user experience is poor.

Contents of the invention

An object of the present invention is to provide a rotating handle extension type stretching push rod assembly which can stably increase the length of the push rod.

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

For reaching this purpose, on the one hand, the present invention adopts following technical scheme:

A rotary handle extended stretching push rod assembly, comprising a stretching push rod and a handle, the handle is hinged on the stretching push rod, and the handle can rotate around the hinge to extend the stretching push rod The length; when the handle is rotated to the set position, the locking structure starts, so that the handle and the stretching push rod are relatively fixed; the locking structure includes a handle button, a fixing piece and an elastic piece, and the elastic piece is set Between the handle button and the stretching push rod, the fixing part is fixed on the stretching push rod, the handle button is sleeved on the fixing part and can reciprocate along the fixing part .

In particular, the handle button includes a cylindrical button body, a button through hole for passing through the fixing member is formed in the button body, and a button positioning hole is formed by extending radially outward on the outer peripheral surface of the button body. piece.

In particular, the button through hole includes two coaxial structures with different diameters, a limiting stepped surface is formed between the two structures, and a bottom surface of the top cover that matches the limiting stepped surface is provided on the fixing member. .

In particular, the handle button also includes a pressing part arranged at the end of the button body, and a chute with a set length is opened on the outer peripheral surface of the pressing part; A gap is formed on the edge of the side, and button ribs are formed on both sides of the gap, and the button rib is aligned with the button positioning block.

In particular, the hinge part of the handle includes a handle through hole for passing through the handle button, and a handle positioning block and a handle blocking block are formed on the side wall of the handle through hole radially inwardly. The positioning block cooperates with the button positioning block, and the handle block can slide in the sliding groove.

In particular, a U-shaped groove is formed on the side wall of the through hole of the handle, an elastic piece is formed inside the U-shaped groove, and the handle block is arranged on the inner side of the free end of the elastic piece.

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

In particular, the stretch push rod includes a pull rod button, a push block, a pulsator and an unlocking lever, the pulsator is hinged on the stretch push rod, and the unlock lever is located inside the stretch push rod; When the pull rod button is pressed down, the push block can be pushed to move laterally, and the push block can further push the pulsator to rotate around its hinge point, and the pulsator presses the unlocking lever.

In particular, the contact surface between the pull rod button and the push block is an inclined surface.

In particular, the stretching push rod also includes a handle fixing plate and a bottom plate that are interlocked, the push block is located in the cavity formed by the handle fixing plate and the bottom plate, and the pull rod button is exposed on the on the surface of the push rod as described above.

On the other hand, the present invention adopts the following technical solutions:

A vacuum cleaner includes a body, and further includes the above-mentioned rotary handle extended stretching push rod assembly, and the rotary handle extended stretching push rod assembly is arranged on the body.

The handle of the rotary handle extension type stretching push rod assembly of the present invention is hinged on the stretching push rod and can rotate around the hinge to extend the length of the stretching push rod, which solves the problem of the existing stretching push rod with a small number of segments. When the number of nodes is large, the stability is poor.

The vacuum cleaner of the present invention includes the above-mentioned rotary handle extended stretching push rod assembly, which uses the handle to increase the length of the stretching push rod, so as to solve the problems of the existing stretching push rod such as limited length when the number of segments is small, and poor stability when the number of segments is large; After the handle is rotated to the set position, the locking structure is activated, so that the handle and the stretching push rod are relatively fixed, and it is convenient and stable to push and pull the vacuum cleaner.

Description of drawings

Fig. 1 is a schematic structural view of a vacuum cleaner provided by a specific embodiment of the present invention;

Fig. 2 is a schematic structural view of a stretching push rod provided by a specific embodiment of the present invention;

Fig. 3 is a schematic structural view of the stretching push rod provided by the specific embodiment of the present invention after the handle fixing plate is removed;

Fig. 4 is a schematic structural view of a handle fixing plate provided by a specific embodiment of the present invention;

Fig. 5 is a schematic structural view of the stretching push rod provided by the specific embodiment of the present invention after the handle fixing plate and the handle are removed;

Fig. 6 is one of the structural schematic diagrams of the handle provided by the specific embodiment of the present invention;

Fig. 7 is the second structural schematic diagram of the handle provided by the specific embodiment of the present invention;

Fig. 8 is one of the structural schematic diagrams of the handle button provided by the specific embodiment of the present invention;

Fig. 9 is the second structural schematic diagram of the handle button provided by the specific embodiment of the present invention;

Fig. 10 is a schematic structural view of the stretching push rod provided by the specific embodiment of the present invention after the handle fixing plate, handle and stretching push rod shell are removed;

Fig. 11 is a cross-sectional view of the stretching push rod when the handle is in the first position according to the specific embodiment of the present invention;

Fig. 12 is a partial enlarged view of place C in Fig. 11;

Fig. 13 is a cross-sectional view at a first angle of stretching the push rod after the handle is rotated at a certain angle according to the specific embodiment of the present invention;

Fig. 14 is a partial enlarged view of place B in Fig. 13;

Fig. 15 is a cross-sectional view of a second angle of stretching the push rod after the handle is rotated at a certain angle provided by the specific embodiment of the present invention;

Fig. 16 is a partial enlarged view of place A in Fig. 15;

Fig. 17 is a cross-sectional view at a first angle of stretching the push rod when the handle is in the second position according to the specific embodiment of the present invention;

Fig. 18 is a cross-sectional view at a second angle of stretching the push rod when the handle is in the second position according to the specific embodiment of the present invention.

In the picture:

1. Stretch push rod; 2. Handle; 4. Body; 11. Handle fixing plate; 12. Pull button; 13. Push block; 14. Wave wheel; 15. Unlocking lever; 16. Base plate; 21. Handle Hole; 22, handle positioning block; 23, handle block; 24, U-shaped groove; 25, shrapnel; 31, handle button; 32, fixing piece; 33, elastic piece; 111, limit slot; 112, threaded hole; 113, convex edge; 311, button body; 312, button through hole; 313, button positioning block; 314, pressing part; 315, chute; 316, button rib; 317, limit step surface; 321, top cover bottom surface .

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

This embodiment discloses a rotating handle extended stretching push rod assembly and a vacuum cleaner. As shown in FIG. 1 , the vacuum cleaner includes a body 4 and a rotating handle extended stretching push rod assembly arranged on the body 4 . As shown in Figures 2 to 18, the stretching push rod assembly includes a stretching push rod 1 and a handle 2, the handle 2 is hinged on the stretching push rod 1, and the handle 2 can rotate around the hinge until the stretching push rod 1 is extended In the linear direction or similar directions, the length of the handle 2 is used to increase the length of the stretching push rod 1, so as to solve the problems of the existing stretching push rod such as limited length when the number of segments is small, and poor stability when the number of segments is large.

When the handle 2 is rotated to the set position, the locking structure is activated, so that the handle 2 and the stretching push rod 1 are relatively fixed, so that the vacuum cleaner can be pushed and pulled conveniently and stably. As shown in Figures 3 to 4, the locking structure preferably includes a handle button 31, a fixing member 32 and an elastic member 33, and the elastic member 33 is arranged between the handle button 31 and the stretching push rod 1 for applying elasticity to the handle button 31. Force; the handle button 31 is sleeved on the fixing part 32, and the fixing part 32 is fixed on the stretching push rod 1, and the handle button 31 can move back and forth along the fixing part 32.

As shown in FIG. 6 and FIG. 7 , the hinge portion of the handle 2 includes a handle through hole 21 for passing through the handle button 31 , and a plurality of handle positioning blocks 22 are formed on the sidewall of the handle through hole 21 extending radially inward. One or more U-shaped grooves 24 are opened on the side wall of the handle through hole 21 , and a strip-shaped elastic piece 25 is formed in the half-enclosed range of the U-shaped grooves 24 . One end of the elastic piece 25 is fixedly connected to the side wall of the through hole 21, and a handle block 23 is arranged on the inner surface of the other end, the handle block 23 is located outside the range surrounded by a plurality of handle positioning blocks 22 and the handle block 23 is located on the extension line of the midpoint of two adjacent handle positioning blocks 22 , that is, the handle clamping block 23 and the handle positioning block 22 are misaligned. The side surface of the handle block 23 facing the outside of the handle through hole 21 is an inclined plane.

As shown in Fig. 8 and Fig. 9, the handle button 31 includes a cylindrical button body 311, and a button through hole 312 for passing through the fixing member 32 is formed in the button body 311. 1. A two-stage structure with a small inner diameter, a limiting stepped surface 317 is formed between the two-stage structures, and a top cover bottom surface 321 matching the limiting stepped surface 317 is provided on the fixing member 32 . A plurality of button positioning blocks 313 are formed extending radially outward on the outer peripheral surface of the button body 311, and the handle positioning block 22 can just fill up the gap between two adjacent button positioning blocks 313, and each button positioning block 313 can be positioned at Two adjacent handle positioning blocks 22 make a certain range of linear movement, thereby locking the handle 2 or unlocking the handle 2 .

On the basis of the above structure, the handle button 31 also includes a pressing portion 314 arranged at the end of the button main body 311, and a chute 315 with a set length is opened on the outer peripheral surface of the pressing portion 314, and the handle block 23 can be placed in the chute. 315 mid slide. Both ends of the chute 315 limit the sliding range of the handle block 23 , thereby limiting the rotation angle of the handle 2 . A gap is formed on the edge of the chute 315 near the button positioning block 313 , and a button rib 316 is formed on both sides of the gap, and the button rib 316 is aligned with the button positioning block 313 . The side of the button rib 316 facing the button positioning block 313 is an inclined plane.

In order to better provide elastic force for the handle button 31 , the elastic member 33 is sheathed on the fixing member 32 , and one end of the elastic member 33 abuts on the handle button 31 , and the other end abuts on the stretching push rod 1 . The elastic member 33 is preferably a compression spring. When the handle button 31 is pressed, the compression spring deforms elastically and accumulates elastic force; when the force of pressing the handle button 31 is removed, the compression spring deforms elastically again, releases the elastic force, and pushes the handle button 31 Reset.

How to use handle 2:

As shown in FIG. 2 , FIG. 3 , FIG. 5 and FIG. 10 , the stretch push rod 1 includes a handle fixing plate 11 , a pull rod button 12 , a push block 13 , a pulsator 14 , an unlocking lever 15 and a bottom plate 16 . The handle fixing plate 11 and the base plate 16 can be fastened together, the push block 13 is located in the cavity formed by the handle fixing plate 11 and the base plate 16 , and the pull rod button 12 is exposed on the surface of the stretch push rod 1 . The fan-shaped pulsator 14 is hinged on the stretching push rod 1 and can rotate around the hinge point. The unlocking lever 15 is located in the stretching push rod 1. One end of the unlocking rod 15 is close to the pulsator 14, and the other end is aligned. The locking structure of stretch push rod 1.

A slideway is formed on the bottom plate 16, and the push block 13 can slide in the slideway. The contact surface between the pull button 12 and the push block 13 is an inclined surface. When the user presses the pull button 12 downward, the pull button 12 at the contact point with the push block 13 gradually becomes wider, and the pull button 12 pushes the push block 13 to both sides. So the push block 13 moves laterally; the end of the push block 13 abuts on the side of the pulsator 14, and then promotes the pulsator 14 to rotate around its hinge point, and the bottom surface of the pulsator 14 abuts against the upper end of the unlocking lever 15, and then moves toward Press the unlocking lever 15 down, touch the locking structure of the stretching push rod 1, and unlock it. After unlocking, the stretching push rod 1 can be stretched freely, and the stretching push rod 1 is locked after being pulled to the maximum height.

It should be pointed out that the handle button 31 can only move along the axis, but cannot rotate around the axis. If the handle button 31 can rotate around the axis, the handle 2 cannot be fixed. The specific method for preventing the rotation of the handle button 31 is not limited, and any related structure in the prior art may be used. In this embodiment, as shown in Figure 4, the two ends of the handle fixing plate 11 are formed with a limit groove 111 that matches the button positioning block 313. When installing, the button positioning block 313 is aligned with the limit groove 111, and then the handle button 31 is pushed into the mounting holes at both 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 radially and It is fixed in the circumferential direction and can only move within a certain range along the axial direction. Both ends of the handle fixing plate 11 are also provided with convex edges 113 for clamping the handle 2 to prevent the handle 2 from detaching from the handle fixing plate 11 .

The working process of handle 2:

When the current handle 2 is at the first position, a section of the outer side of each button positioning block 313 is stuck between the two handle positioning blocks 22, and a section of the inner side is stuck in the limiting groove 111 at both ends of the handle fixing plate 11. At this time, the handle 2 It cannot be rotated, and the handle block 23 is tightly pressed against the button rib 316 in the middle by the elastic force of the elastic member 33 . As shown in Fig. 8, Fig. 9, Fig. 11 and Fig. 12, press the handle button 31 inwardly, the elastic member 33 shrinks, the slope of the button rib 316 squeezes the slope on the handle block 23, and the elastic piece 25 has a certain degree of elasticity. deformation, the button rib 316 passes over the handle block 23; after the pressure on the handle block 23 disappears, the elastic piece 25 resets, and the handle block 23 enters the chute 315. When the user lets go, the button positioning block 313 completely enters the limiting grooves 111 at both 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. Although the elastic member 33 continues to apply elastic force to the handle button 31, the handle button 31 cannot move outwards due to the blocking of the handle block 23, and the self-locking of the handle button 31 is realized, and the handle 2 is continuously in a rotatable state.

As shown in FIG. 13 to FIG. 16 , the handle 2 has two rotation directions at this time, which are respectively towards the two ends of the sliding groove 315 . No matter which direction the user chooses, the working principle of the handle 2 is the same. The handle block 23 continues to slide in the chute 315. When the handle block 23 is completely separated from the button rib 316 and aligned with the gap on the edge of the chute 315, the handle button 31 moves outward under the elastic force of the elastic member 33. move. At this time, the handle positioning block 22 is aligned with the button positioning block 313, so the button positioning block 313 is pushed against the handle positioning block 22 after the handle button 31 moves for a certain distance. status.

As shown in FIG. 17 and FIG. 18 , if the handle 2 continues to be rotated, the handle block 23 slides along the outer side of the button rib 316 , and the handle positioning block 22 and the button positioning block 313 gradually begin to dislocate. When the handle 2 was rotated to the second position, the handle positioning block 22 and the button positioning block 313 were completely staggered, and the handle button 31 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 snapped into the concave position of the other side respectively (similar to two gears meshing). At this time, the limit step surface 317 of the handle button 31 is against the top cover bottom surface 321 of the fixture 32, preventing the handle button 31 from continuing to move outward; a section of the outer side of each button positioning block 313 is stuck in two handle positioning blocks 22 A section between and inside is stuck in the limiting grooves 111 at both ends of the handle fixing plate 11, the handle 2 cannot rotate relative to the handle fixing plate 11, and the locking of the handle 2 is realized.

In the above use method, the first position and the second position of the handle 2 are not specifically limited, and may be determined according to specific use requirements. For example, the first position is that the handle 2 is raised to the same plane as the stretching push rod 1 , and the second position is that the handle 2 is perpendicular to the stretching push rod 1 . When the handle 2 is lifted to the same plane as the stretching push rod 1, after pressing the handle button 31, the user facing the vacuum cleaner can rotate to push the handle 2 forward or pull the handle 2 backward, that is, in this embodiment The handle 2 has three locking positions, which are respectively a vertical state, a forward-leaning horizontal state and a backward-leaning horizontal state.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. A rotary handle extended stretching push rod assembly, characterized in that it comprises a stretching push rod (1) and a handle (2), and the handle (2) is hinged on the stretching push rod (1) , and the handle (2) can rotate around the hinge to extend the length of the stretch push rod (1); when the handle (2) is rotated to the set position, the locking structure is activated, so that the handle (2) ) and the stretch push rod (1) are relatively fixed; The locking structure includes a handle button (31), a fixing piece (32) and an elastic piece (33), and the elastic piece (33) is arranged between the handle button (31) and the stretching push rod (1) Between, the fixing piece (32) is fixed on the stretching push rod (1), and the handle button (31) is sleeved on the fixing piece (32) and can move along the fixing piece (32) reciprocating movement. 2. The rotating handle extension type stretching push rod assembly according to claim 1, characterized in that, the handle button (31) includes a cylindrical button body (311), and the inside of the button body (311) is formed to A button positioning block (313) is formed extending radially outward on the outer peripheral surface of the button body (311) through the button through hole (312) of the fixing member (32). 3. The rotating handle extension type stretching push rod assembly according to claim 2, characterized in that, the button through hole (312) comprises two sections of structures arranged coaxially and with different diameters, and a limit is formed between the two sections of structures. a step surface (317), and a bottom surface (321) of the top cover matched with the step surface (317) is provided on the fixing piece (32). 4. The rotary handle extended stretching push rod assembly according to claim 2, characterized in that, the handle button (31) further comprises a pressing portion (314) arranged at the end of the button body (311), A chute (315) with a set length is opened on the outer peripheral surface of the pressing portion (314); a gap is formed on the edge of the chute (315) near the side of the button positioning block (313), so that Button ribs (316) are formed on both sides of the notch, and the button ribs (316) are aligned with the button positioning block (313). 5. The rotating handle extension type stretching push rod assembly according to claim 4, characterized in that, the hinge part of the handle (2) includes a handle through hole (21) for passing through the handle button (31) ), on the side wall of the handle through hole (21) extending radially inwardly to form a handle positioning block (22) and a handle block (23), the handle positioning block (22) and the button positioning block ( 313), the handle block (23) can slide in the chute (315). 6. The rotating handle extended stretching push rod assembly according to claim 5, characterized in that, a U-shaped groove (24) is opened on the side wall of the handle through hole (21), and the U-shaped groove (24) An elastic piece (25) is formed inside, and the handle block (23) is arranged on the inner side of the free end of the elastic piece (25). 7. The rotating handle extension type stretching push rod assembly according to any one of claims 1 to 6, characterized in that, the elastic member (33) is sleeved on the fixing member (32), and the One end of the elastic member (33) abuts on the handle button (31), and the other end abuts on the stretch push rod (1). 8. The rotary handle extended stretching push rod assembly according to any one of claims 1 to 6, characterized in that, the stretching push rod (1) includes a pull rod button (12), a push block (13) , the pulsator (14) and the unlocking lever (15), the pulsator (14) is hinged on the stretching push rod (1), and the unlocking lever (15) is located at the stretching push rod (1) Inside; when the pull button (12) is pressed down, it can push the push block (13) to move laterally, and the push block (13) then pushes the pulsator (14) to rotate around its hinge point. The pulsator (14) presses the unlocking lever (15). 9. The rotating handle extended stretch push rod assembly according to claim 8, characterized in that, the contact surface between the pull rod button (12) and the push block (13) is an inclined plane. In particular, the stretching push rod (1) also includes a handle fixing plate (11) and a bottom plate (16) that are engaged together, and the push block (13) is located between the handle fixing plate (11) and the bottom plate (16) In the enclosed cavity, the pull button (12) is exposed on the surface of the pull push rod (1). 10. A vacuum cleaner, comprising a fuselage (4), characterized in that it also includes the rotary handle extended stretching push rod assembly according to any one of claims 1 to 9, the rotary handle extended stretching The push rod assembly is arranged on the fuselage (4).