CN108720713A - Hand-held type dust catcher - Google Patents

Abstract

The invention provides a handheld dust collector, which belongs to the technical field of dust collectors and comprises a dust collector body, a handle and a dust collector body, wherein the dust collector body is provided with the handle for holding; the gravity center adjusting device is connected to the dust collector body and provided with a plurality of positions on the dust collector body, and the gravity center adjusting device enables the gravity center position to be adjusted around the handle by changing among the positions on the dust collector body; the handheld dust collector is provided with the gravity center adjusting device, can be mounted on the dust collector body in a changing mode among a plurality of positions, and can achieve the purpose of saving labor when a user cleans at a low place and a high place by adjusting the gravity center position around the handle through the gravity center adjusting device.

Description

A handheld vacuum cleaner

technical field

The invention relates to the technical field of vacuum cleaners, in particular to a hand-held vacuum cleaner.

Background technique

Hand-held vacuum cleaners are a commonly used household cleaning equipment. Compared with horizontal vacuum cleaners, they have the advantages of lightness, flexibility, and wide application. Since the hand-held vacuum cleaner integrates all components such as battery, motor, and dust cylinder, how to design the center of gravity of the whole machine to improve the portability of the user is an important issue in the design of the hand-held vacuum cleaner.

Chinese patent document CN108024674A discloses a hand-held vacuum cleaner comprising a cyclone separation unit, a suction generator, a battery pack and a handle, the handle is provided with an actuator in the form of a finger-operated trigger and a trigger arranged below the trigger Retainer; the battery pack is arranged below the trigger retainer such that the center of gravity of the vacuum cleaner is located below the trigger retainer, the lower surface of the battery pack forms the base of the vacuum cleaner, and the suction generator is arranged such that the center of gravity of the vacuum cleaner Located above the base; the cyclonic unit extends forward of the trigger, and the handle is angled relative to the cyclonic unit to form an angle not less than 85 degrees and not more than 140 degrees between the handle and the longitudinal axis of the cyclonic unit. With the above-mentioned hand-held vacuum cleaner, since its center of gravity is located above the base and the handle is inclined towards the cyclone separation unit, when cleaning low places such as the ground, its center of gravity is located below the handle, which saves effort in use.

However, due to the variety of use methods and wide range of use of handheld vacuum cleaners, users not only use them to clean low places such as floors and sofas, but also use them to clean high places such as walls. After the handheld vacuum cleaner is picked up, its center of gravity changes to the top of the handle, and it will be more laborious to use.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the hand-held vacuum cleaner in the prior art is more laborious to operate due to the higher position of its center of gravity when cleaning high places, so as to provide a position for cleaning according to needs, A handheld vacuum cleaner that can adjust the center of gravity of the vacuum cleaner.

In order to solve the above technical problems, the present invention provides a handheld vacuum cleaner, comprising:

The vacuum cleaner body has a handle for holding it;

The center of gravity adjustment device is connected to the vacuum cleaner body, the center of gravity adjustment device has multiple positions on the vacuum cleaner body, and the center of gravity adjustment device changes between multiple positions on the vacuum cleaner body to make it The center of gravity position is adjusted around the handle.

As a preferred solution, the center of gravity adjusting device automatically adjusts the position of the center of gravity under the action of gravity according to different use states of the handheld vacuum cleaner.

As a preferred solution, the center of gravity adjusting device is connected to the handle.

As a preferred solution, the center-of-gravity adjusting device is rotatably connected to the handle, and the center-of-gravity adjusting device adjusts the position of its center of gravity by rotating around the handle.

As a preferred solution, the center of gravity adjusting device is connected to the handle through a hinged structure, and the hinged structure includes:

A hinged shaft is eccentrically connected to the center-of-gravity adjustment device;

A hinge hole is arranged at the root of the handle;

After the hinge shaft is inserted into the hinge hole, the hinge shaft is blocked by a blocking device to prevent the hinge shaft from sliding out of the hinge hole.

As a preferred solution, the blocking means include:

an annular flange disposed on top of the hinge shaft;

The blocking ring is arranged at the opening of the hinge hole. After the hinge shaft is inserted into the hinge hole, the blocking ring clamps the annular flange to prevent the hinge shaft from sliding out of the hinge hole.

As a preferred solution, the center of gravity adjusting device is a battery pack.

As a preferred solution, the first electrode of the battery pack is arranged on the side wall of the hinge shaft, and the second electrode of the battery pack is arranged on the side wall of the annular flange;

A second contact electrically connected to the second electrode is arranged on the inner wall of the hinged hole, and a first contact electrically connected to the first electrode is arranged on the inner wall of the barrier ring;

After the hinge shaft is snapped into the hinge hole, the second electrode arranged on the side wall of the annular flange is electrically connected to the second contact arranged on the inner wall of the hinge hole, and the first electrode arranged on the side wall of the hinge shaft The electrodes are electrically connected to the first contacts arranged on the inner wall of the barrier ring.

As a preferred solution, when the center of gravity of the center of gravity adjustment device is located at the first position in front of the handle, one end of the center of gravity adjustment device is connected to the main body of the vacuum cleaner through a snap-fit structure.

As a preferred solution, the clamping structure includes:

The lock column is slidably arranged on the center-of-gravity adjustment device;

A lock, connected to the lock column, used to drive the lock column to slide out or slide back on the center of gravity adjustment device;

The lock hole is arranged on the body of the vacuum cleaner and cooperates with the lock column. When the center of gravity adjustment device is at the first position, the lock column can be inserted into the center of gravity adjustment device after being slid out of the center of gravity adjustment device. In the lock hole, to stop the further rotation of the center of gravity adjusting device.

As a preferred solution, an elastic member is provided at the root of the lock column, and the elastic member keeps the lock column sliding out of the center of gravity adjusting device through elastic force.

As a preferred solution, the gravity center adjusting device and the vacuum cleaner body slide into the first position through a guide structure.

As a preferred solution, the guide structure includes:

An arc-shaped platform is arranged at the end of the center-of-gravity adjustment device, and its arc is the same as the rotation arc of the center-of-gravity adjustment device;

An arc-shaped groove is provided on the vacuum cleaner body, and when the center-of-gravity adjusting device rotates toward the first position, the arc-shaped platform is slidably fitted along the arc-shaped groove;

The lock cylinder is arranged on the arc surface of the arc platform, and the lock hole is arranged in the arc groove.

As a preferred solution, when the center of gravity of the center of gravity adjustment device is located at the second position behind the handle, one end of the center of gravity adjustment device snap-connected with the vacuum cleaner body is suitable for the wrist or arm of the hand holding the handle. to lean against.

The technical solution of the present invention has the following advantages:

1. The hand-held vacuum cleaner provided by the present invention, according to the user’s need for different use environments such as low-level cleaning and high-level cleaning when using the vacuum cleaner, it has been found through research that the center of gravity for the user to use the vacuum cleaner to save energy when cleaning in different positions The distribution requirements are different. In order to achieve the purpose of saving labor in different use environments, the present invention proposes a vacuum cleaner capable of adjusting the center of gravity; The center of gravity is adjusted around the handle through the center of gravity adjustment device, so that the user can achieve the purpose of saving labor when cleaning at low places and at high places.

2. In the hand-held vacuum cleaner provided by the present invention, the center of gravity adjustment device can automatically adjust the position of the center of gravity under the action of gravity according to the different use states of the hand-held vacuum cleaner. Shaking left and right can also adjust the position of the center of gravity more flexibly, making it more convenient and labor-saving for users to use.

3. In the handheld vacuum cleaner provided by the present invention, the center-of-gravity adjustment device is connected to the handle, so that the center-of-gravity adjustment device can adjust the position of the center of gravity around the handle, so only a small range of changes can be made to achieve more labor-saving effect for the user .

4. In the hand-held vacuum cleaner provided by the present invention, the center-of-gravity adjustment device is connected to the handle in rotation, and the center-of-gravity adjustment device adjusts the position of its center of gravity by rotating around the handle, thereby avoiding the complicated disassembly process of the center-of-gravity adjustment device and improving Ease of use of the device.

5. In the handheld vacuum cleaner provided by the present invention, the center-of-gravity adjustment device is connected to the handle through a hinged structure, so that the center-of-gravity adjustment device can only rotate on the same horizontal plane, avoiding random rotation of the center-of-gravity adjustment device during use, and improving the reliability of the structure and stability.

6. The hand-held vacuum cleaner provided by the present invention, the blocking device provided in the hinged hole where the center of gravity adjustment device is connected to the handle includes an annular flange and a blocking ring, the annular flange is inserted into the blocking ring, and the blocking ring The flange is locked to prevent the hinged shaft from sliding out of the hinged hole, and does not affect the rotation of the hinged shaft in the hinged hole. When the hinged shaft rotates in the hinged hole, the annular flange contacts and rotates with the inner wall of the blocking ring.

7. In the hand-held vacuum cleaner provided by the present invention, the center of gravity adjustment device adopts a battery pack, and uses the accessories of the hand-held vacuum cleaner itself to adjust the center of gravity position, avoiding adding a new center of gravity adjustment device and unnecessary increase of the total gravity of the vacuum cleaner .

8. In the hand-held vacuum cleaner provided by the present invention, the first electrode of the battery pack is arranged on the side wall of the hinge shaft, the second electrode is arranged on the side wall of the annular flange, and when the battery pack rotates around the vacuum cleaner body, The side wall of the hinge shaft is always in close contact with the inner wall of the hinge hole, and the side wall of the annular flange is always in close contact with the inner wall of the blocking ring to electrically connect the battery pack and the vacuum cleaner body. Winding problem.

9. In the hand-held vacuum cleaner provided by the present invention, when the center of gravity adjustment device is located at the first position in front of the handle, one end of the center of gravity adjustment device is connected to the vacuum cleaner body through a clamping structure, so as to avoid cleaning at low places. The center of gravity adjustment device can rotate freely, which improves the reliability and stability of the structure.

10. In the hand-held vacuum cleaner provided by the present invention, the clamping structure includes a lock column, a lock buckle and a lock hole. By inserting the lock column located on the center of gravity adjustment device into the lock hole located on the vacuum cleaner body, the center of gravity adjustment device is placed on the vacuum cleaner body The lock is used to control the sliding of the lock column on the center of gravity adjustment device, which is convenient for manual operation of the lock column.

11. In the hand-held vacuum cleaner provided by the present invention, the root of the lock column is provided with an elastic member, and the elastic member keeps the lock column sliding out of the center of gravity adjustment device through elastic force, that is, under the action of the elastic member Keeping the state that the lock column extends into the lock hole enables automatic locking when the center of gravity adjusting device moves to the first position, thereby reducing manual operations.

12. In the hand-held vacuum cleaner provided by the present invention, the center of gravity adjustment device and the vacuum cleaner body slide into the first position through a guide structure, and the center of gravity adjustment device can enter into the vacuum cleaner body more accurately and easily through the guide structure The first place to connect.

13. In the hand-held vacuum cleaner provided by the present invention, the guide structure includes an arc-shaped platform and an arc-shaped groove equal to the rotation radius of the center-of-gravity adjustment device. When the center-of-gravity adjustment device rotates, the arc-shaped platform on the center-of-gravity adjustment device can easily slide in In the arc-shaped groove, the center of gravity adjustment device can more accurately enter the first position matched with the vacuum cleaner body.

14. In the hand-held vacuum cleaner provided by the present invention, when the center of gravity adjustment device is located at the second position behind the handle, the end of the center of gravity adjustment device snap-fitted with the vacuum cleaner body is suitable for holding the handle The wrist or arm of the hand rests against it, which further improves the force situation during use and is more convenient for users to use.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a front view of the battery pack of the handheld vacuum cleaner of the present invention when it is in a first position.

Fig. 2 is a front view of the battery pack of the handheld vacuum cleaner of the present invention when it is in a second position.

FIG. 3 is a schematic perspective view of the three-dimensional structure of FIG. 2 .

Fig. 4 is an exploded view of the battery pack and the vacuum cleaner body in Fig. 2 .

FIG. 5 is an enlarged view of part A in FIG. 4 .

FIG. 6 is a schematic perspective view of the rear surface of the battery pack.

Explanation of reference signs:

1. Vacuum cleaner body; 2. Handle; 3. Battery pack; 4. Hinged structure; 41. Hinged shaft; 411. Annular flange; 412. First electrode; 413. Second electrode; 42. Hinged hole; 421. Blocking Ring; 422, the first contact; 423, the second contact; 5, snap-in structure; 51, lock column; 52, lock; 53, keyhole; 54, elastic member; arc groove.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

Example 1

This embodiment provides a hand-held vacuum cleaner, as shown in Figure 1 and Figure 2, including a vacuum cleaner body 1, a handle 2 and a battery pack 3, the handle 2 is connected to the vacuum cleaner body 1, and is used for grasping when holding it; The battery pack 3 is connected to the handle 2 as a center of gravity adjustment device, and can be switched between multiple positions on the vacuum cleaner body 1 so that the center of gravity can be adjusted around the handle 2 .

As shown in Figure 3, the battery pack 3 is rotationally connected to the handle 2 through a hinged structure 4, the battery pack 3 adjusts its center of gravity position by rotating around the handle 2, and the battery pack 3 can be adjusted according to the According to the different usage states of the handheld vacuum cleaner, the position of the center of gravity is automatically adjusted under the action of gravity. For example, when cleaning a high place, the vacuum cleaner is lifted. At this time, the battery pack 3 is located at the lower end of the handle 2 and swings freely, flexibly changing the center of gravity of the vacuum cleaner. Location.

As shown in Figure 4, the hinge structure 4 connecting the battery pack 3 with the handle 2 includes: a hinge shaft 41 and a hinge hole 42, the hinge shaft 41 is eccentrically connected to the battery pack 3; The hole 42 is arranged at the root of the handle 2; after the hinge shaft 41 is inserted into the hinge hole 42, the hinge shaft 41 is blocked by a blocking device to prevent the hinge shaft 41 from sliding outward to the hinge hole 42 out.

As shown in Figure 5, the blocking device includes: an annular flange 411 and a blocking ring 421, the annular flange 411 is arranged on the top of the hinge shaft 41; the blocking ring 421 is arranged at the opening of the hinge hole 42, After the hinge shaft 41 is inserted into the hinge hole 42 , the blocking ring 421 blocks the annular flange 411 to prevent the hinge shaft 41 from sliding out of the hinge hole 42 .

As shown in Figure 5, the first electrode 412 of the battery pack 3 is arranged on the side wall of the hinge shaft 41, and the second electrode 413 of the battery pack 3 is arranged on the side wall of the annular flange 411 On the inner wall of the hinge hole 42, a second contact 423 electrically connected to the second electrode 413 is provided, and on the inner wall of the barrier ring 421, a first contact 422 electrically connected to the first electrode 412 is provided; After the hinge shaft 41 is snapped into the hinge hole 42, the second electrode 413 arranged on the side wall of the annular flange 411 is electrically connected with the second contact 423 arranged on the inner wall of the hinge hole 42, and is arranged on the hinge shaft 41. The first electrode 412 on the side wall is electrically connected to the first contact 422 provided on the inner wall of the barrier ring 421 .

As shown in FIG. 1 , when the center of gravity of the battery pack 3 is located at the first position in front of the handle 2 , one end of the battery pack 3 is connected to the vacuum cleaner body 1 through a clamping structure 5 .

As shown in Fig. 3, Fig. 4 and Fig. 5, the clamping structure 5 includes: a lock cylinder 51, a lock 52 and a lock hole 53, and the lock cylinder 51 is slidably arranged on the battery pack 3; the lock The buckle 52 is connected with the lock post 51, and is used to drive the lock post 51 to slide out or slide back on the battery pack 3; the lock hole 53 is arranged on the vacuum cleaner body 1, and the When the center of gravity adjusting device is in the first position, the locking post 51 can be inserted into the locking hole 53 after sliding out of the center of gravity adjusting device, so as to prevent the center of gravity adjusting device continue to rotate.

As shown in FIG. 6 , an elastic member 54 is provided at the root of the lock post 51 , and the elastic member 54 keeps the lock post 51 sliding out of the battery pack 3 through elastic force.

As shown in FIG. 3 , the battery pack 3 and the vacuum cleaner body 1 slide into the first position through a guide structure. The guide structure includes: an arc-shaped platform 6 and an arc-shaped groove 7, the arc-shaped platform 6 is arranged at the end of the battery pack 3, and its arc is the same as the rotation arc of the battery pack 3; A slot 7 is provided on the vacuum cleaner body 1, and when the center of gravity adjusting device rotates toward the first position, the arc-shaped platform 6 is slidably fitted along the arc-shaped slot 7;

The locking post 51 is arranged on the arc surface of the arc platform 6 , and the locking hole 53 is arranged in the arc groove 7 .

As shown in Figure 2, when the center of gravity of the battery pack 3 is located at the second position behind the handle 2, one end of the battery pack 3 and the vacuum cleaner body 1 snap-fitted is suitable for holding the handle 2. Rest on the wrist or arm of the hand.

Instructions

When using a vacuum cleaner for low-level cleaning, rotate the battery pack 3 at the bottom of the handle 2, so that the arc-shaped platform 6 on the battery pack 3 slides in along the arc-shaped groove 7 on the vacuum cleaner body 1, and finally enters the vacuum cleaner as shown in Figure 1. In the first position, the locking post 51 on the battery pack 3 is retracted into the battery pack 3 under the extrusion of the arc groove 7. When the position of the locking post 51 is opposite to the locking hole 53 on the cleaner body 1, the elastic member 54 Under the action of the locking cylinder 51 automatically extends into the locking hole 53, thereby fixing the battery pack 3 at the first position.

When using a vacuum cleaner to clean high places, manually pull the lock catch 52 backward, pull out the lock post 51 inserted into the lock hole 53, and rotate the battery pack 3 at the bottom of the handle 2 to make the arc-shaped table 6 on the battery pack 3 Slide out along the arc-shaped groove 7 on the vacuum cleaner body 1, and finally enter the second position shown in Figure 2, and use the wrist or arm to lean against the arc-shaped table 6 on the battery pack 3, so as to facilitate cleaning at high places.

The second position of the center of gravity adjusting device may be located at other conventional positions except behind the handle, and the center of gravity adjusting device adopts other conventional positions at the second position for the wrist or arm of the hand holding the handle to rest against.

Since the guide structure is based on the rotation track of the center of gravity adjustment device, the structural design of the contact end between the center of gravity adjustment device and the vacuum cleaner body is carried out, so the guide structure is not limited to arc-shaped tables and arc-shaped grooves, and the guide structure can be used in addition to arc-shaped Other conventional structures other than platforms and arc grooves.

Since the role of the guide structure is to enable the center of gravity adjustment device to more accurately enter the first position matched with the vacuum cleaner body, rather than the necessary setting for the center of gravity adjustment device to enter the first position, the guide structure can be omitted, or The center of gravity adjusting device is slid into the first position by adopting other conventional structures except the guiding structure.

Since the function of the elastic member is to enable the lock cylinder to automatically pop out, it is not a necessary structure to keep the center of gravity adjustment device at the first position, so the elastic member can be omitted, or other conventional structures other than the elastic member can be used Keep the lock cylinder extended outward.

Due to the various clamping structures in the prior art, the clamping structure may adopt other conventional structures other than the lock cylinder, the lock buckle and the lock hole.

Since the center of gravity adjusting device does not have to maintain a fixed state when it is in the first position, the clamping structure can be omitted, or other conventional structures other than the clamping structure can be used to adjust the center of gravity adjusting device at the first position. fixed.

Since there are many forms of electrical connection between the two devices in the prior art, the electrical connection between the battery pack and the vacuum cleaner body can be made in addition to including electrodes arranged on the hinge shaft and electrodes arranged in the hinge hole. Other conventional structures other than contacts within.

Since multiple devices are integrated on the handheld vacuum cleaner, the center of gravity adjusting device can use other conventional devices except the battery pack.

The function of the blocking device is to prevent the setting of the center of gravity adjustment device hinged on the handle from coming out, and there are many anti-off structures for the hinged structure in the prior art, so the blocking device can be used in addition to including the ring flange and other conventional structures other than barrier rings.

Since the hinge structure in the prior art has various forms, the hinge structure can adopt other conventional structures except the hinge shaft and the hinge hole.

Since the rotational connection between the center of gravity adjusting device and the handle is to realize that the center of gravity adjusting device adjusts the position of the center of gravity around the handle, and other connection forms that can realize this function in the prior art, the center of gravity The adjustment device and the handle can be connected in other conventional ways except for rotating connection, or the center of gravity adjustment device can adjust the position of its center of gravity in other conventional ways except for rotating around the handle.

Since the function of the center of gravity adjusting device is to adjust the position of the center of gravity of the vacuum cleaner as a whole, the center of gravity adjusting device can be connected to other conventional positions except the handle.

According to the different use states of the handheld vacuum cleaner, the center-of-gravity adjustment device can be adjusted in other conventional ways except automatically adjusting the center-of-gravity position under the action of gravity.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (14)

1. a kind of hand held cleaner, which is characterized in that including：

Body of dust collector (1) has for hand-held handle (2)；

Gravity adjusting device is connected on the body of dust collector (1), and the gravity adjusting device is in the body of dust collector (1) there are multiple positions, the gravity adjusting device between multiple positions on the body of dust collector (1) by becoming on It changes, its position of centre of gravity is made to be adjusted around the handle (2).

2. hand held cleaner according to claim 1, which is characterized in that the gravity adjusting device is according to described hand-held Different use states residing for formula dust catcher automatically adjust the position of centre of gravity under the effect of gravity.

3. hand held cleaner according to claim 1 or 2, which is characterized in that the gravity adjusting device is connected to institute It states on handle (2).

4. hand held cleaner according to claim 3, which is characterized in that the gravity adjusting device and the handle (2) it is rotatablely connected, gravity adjusting device carries out the adjusting of its position of centre of gravity by being rotated around the handle (2).

5. hand held cleaner according to claim 4, which is characterized in that the gravity adjusting device and the handle (2) it being connected by articulated structure (4), the articulated structure (4) includes,

Articulated shaft (41), bias are connected on the gravity adjusting device；

Hinge hole (42) is arranged in the root of the handle (2)；

After the articulated shaft (41) is inserted into the hinge hole (42), the articulated shaft (41) is blocked by retention device, with The articulated shaft (41) is prevented to be skidded off to outside hinge hole (42).

6. hand held cleaner according to claim 5, which is characterized in that the retention device includes,

Annular flange (411) is arranged at the top of articulated shaft (41)；

Blocker ring (421) is arranged at the aperture of hinge hole (42), after articulated shaft (41) is inserted into hinge hole (42), the resistance Baffle ring (421) blocks the annular flange (411), to prevent the articulated shaft (41) from being skidded off to outside hinge hole (42).

7. hand held cleaner according to claim 6, which is characterized in that the gravity adjusting device is battery pack (3).

8. hand held cleaner according to claim 7, which is characterized in that the first electrode (412) of the battery pack (3) It is arranged on the side wall of the articulated shaft (41), the second electrode (413) of the battery pack (3) is arranged in the annular flange (411) on side wall；

It is provided with the second contact (423) being electrically connected with second electrode (413) on the inner wall of hinge hole (42), is stopping The first contact (422) being electrically connected with first electrode (412) is provided on the inner wall of ring (421)；

After the articulated shaft (41) is caught in the hinge hole (42), second electrode of the setting on annular flange (411) side wall (413) with the second contact (423) on hinge hole (42) inner wall is set be electrically connected, setting on articulated shaft (41) side wall the One electrode (412) is electrically connected with the first contact (422) being arranged on blocker ring (421) inner wall.

9. the hand held cleaner according to any one of claim 5~8, which is characterized in that the gravity adjusting device When position of centre of gravity is located at the first position in front of handle (2), one end of gravity adjusting device is logical with the body of dust collector (1) Cross clamping structure (5) connection.

10. hand held cleaner according to claim 9, which is characterized in that the clamping structure (5) includes,

Lock pillar (51), is slidably arranged on the gravity adjusting device；

It latches (52), is connect with the lock pillar (51), for driving the lock pillar (51) to be slided on the gravity adjusting device It stretches out or slidably retractable；

Lockhole (53) is arranged on the body of dust collector (1), coordinates with the lock pillar (51), when the gravity adjusting device When positioned at the first position, the lockhole is inserted into after the gravity adjusting device is stretched out in the lock pillar (51) sliding (53) in, to prevent being rotated further for the gravity adjusting device.

11. hand held cleaner according to claim 10, which is characterized in that lock pillar (51) root is equipped with elastic component (54), the elastic component (54) keeps the lock pillar (51) sliding stretching out the gravity adjusting device by elastic force.

12. hand held cleaner according to claim 11, which is characterized in that the gravity adjusting device and the dust suction Device ontology (1) slides into the first position by guide frame.

13. hand held cleaner according to claim 12, which is characterized in that the guide frame includes,

Arc platform (6) is arranged in the end of the gravity adjusting device, the rotation radian of radian and the gravity adjusting device It is identical；

Arc groove (7) is arranged on the body of dust collector (1), when the gravity adjusting device turns towards the first position When dynamic, the arc platform (6) is made to be slidably matched along the arc groove (7)；

The lock pillar (51) is arranged on the arcwall face of the arc platform (6), and the lockhole (53) is arranged in the arc groove (7) It is interior.

14. hand held cleaner according to claim 9, which is characterized in that the gravity adjusting device is in position of centre of gravity When positioned at the second position at handle (2) rear, one end of the gravity adjusting device and the body of dust collector (1) clamping connection Suitable for for hold the handle (2) hand wrist or arm carry out against.