Handheld dust collector capable of opening dust cylinder by moving up and down

Abstract

The invention provides a handheld dust collector capable of opening a dust cylinder through up-down movement, which comprises a dust cylinder (1), a handle (2) and an axial support part (3) axially arranged on the upper side of the handle (2), the dust cylinder (1) is connected to the upper side of the axial support part (3) in an up-down movement manner, the handheld dust collector further comprises a first locking part (9) and a second locking part (10), the first locking part (9) is provided with a barb and moves up and down along with the dust cylinder (1), and the second locking part (10) is connected to the lower side of the axial support part (3). The axial supporting part (3) is provided with a moving part (11) serving as a second locking part (10), the moving part (11) is of a frame structure, the moving part (11) and the barb can be matched up and down to limit the barb, the moving part (11) is further connected with a lever (12), and a user unlocks the first locking part (9) and the second locking part (10) through the lever (12); according to the invention, the dust cylinder and the axial supporting part can be recovered and matched more favorably, so that the butt joint outlet and the butt joint inlet can ensure good sealing butt joint.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, in particular to a handheld vacuum cleaner capable of opening a dust cylinder by moving up and down. Background Art

[0002] Handheld vacuum cleaners are becoming more and more popular among users compared to horizontal vacuum cleaners because they are convenient to use by hand and can be used wirelessly after carrying batteries.

[0003] On the basis of the handheld vacuum cleaner, a structural scheme for convenient dust emptying has been further developed. Therefore, the applicant has previously developed a handheld vacuum cleaner that can open the dust barrel by moving up and down. The handheld vacuum cleaner that can open the dust barrel by moving up and down includes a handle and an axial support part axially arranged on the upper side of the handle. The dust barrel can be connected to the upper side of the axial support part for upward movement. When the dust barrel moves upward, the cover located at the front end of the dust barrel is released from the limit and can be opened. When the dust barrel moves downward, the dust barrel and the axial support part resume matching, and the front end of the axial support part is provided with an insertion interface, which serves as a suction port and / or a plug-in cleaning accessory. A flow channel is provided in the axial support part, and the flow channel is provided with a docking outlet on the upper side of the axial support part, and the dust barrel is provided with a corresponding docking inlet. After the dust barrel and the axial support part resume matching, the docking outlet and the docking inlet need to be sealed and docked. After such a design, the dust emptying operation of the dust barrel can be performed without removing the cleaning accessory.

[0004] However, in this case, during the use cycle of the handheld vacuum cleaner that opens the dust cup by moving up and down, it is difficult to improve the reliability of the up and down movement connection between the dust cup and the axial support part, especially whether the dust cup and the axial support part are in a good state of restoring cooperation, because this involves ensuring a good sealed connection between the docking outlet and the docking inlet.

[0005] The applicant will propose a handheld vacuum cleaner that opens the dust cylinder by moving up and down, which is more conducive to restoring the fit between the dust cylinder and the axial support part, thereby facilitating the docking outlet and the docking inlet to ensure a good sealed docking. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art and propose a handheld vacuum cleaner that opens the dust cylinder by moving up and down, which is more conducive to the restoration of the cooperation between the dust cylinder and the axial support part, thereby facilitating the docking outlet and the docking inlet to ensure a good sealed docking.

[0007] Compared with the prior art, the present invention proposes a handheld vacuum cleaner that can be opened by moving up and down, comprising a dust canister, a handle and an axial support portion axially arranged on the upper side of the handle, the dust canister being connected to the upper side of the axial support portion for upward movement, when the dust canister moves upward, the cover located at the front end of the dust canister is released from the limit and can be opened, when the dust canister moves downward, the dust canister and the axial support portion are restored to match, and a plug-in interface is provided at the front end of the axial support portion, which serves as a suction port and / or a plug-in cleaning accessory, a flow channel is provided in the axial support portion, and a docking outlet is provided on the upper side of the axial support portion, and the dust canister is provided with a corresponding docking inlet, after the dust canister and the axial support portion are restored to match, the docking outlet and the corresponding The access port is sealed and docked, and also includes a first locking part and a second locking part that cooperate with each other to lock the dust cylinder in a recovery position. The first locking part is provided with a barb and moves up and down with the dust cylinder. The axial support part is provided with a movable part that can reciprocate axially as a second locking part. The movable part adopts a frame structure, and the movable part and the barb can cooperate up and down to limit the barb. The movable part is also connected to a lever, and the lower end of the lever is provided for user operation and setting. The upper end of the lever cooperates with the movable part. When the user pushes the lower end of the lever to move, the upper end of the lever synchronously drives the movable part to move axially, and the movable part moves axially to clear the barb to release the lock between the first locking part and the second locking part.

[0008] After adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0009] In the present disclosure, the moving part adopts a frame structure, and the moving part itself has good stability, which is conducive to providing reliable downward force and downward pressure limit stability, and thus is more conducive to the dust bin and the axial support part to resume cooperation, that is, it is conducive to the relative position of the dust bin and the axial support part being stabilized in the restored cooperation position, and then it is conducive to ensuring a good sealed docking between the docking outlet and the docking entrance. While achieving the aforementioned technical performance, it is not difficult to open. Therefore, in order to improve the operating experience and make it easier for users to operate, a lever is specially arranged to cooperate with the moving part, and the user unlocks the lock by operating the lever, thereby making the entire scheme of the present disclosure have practical significance.

[0010] In some embodiments, the axial support portion includes an upper bracket and a lower bracket, and the upper bracket and the lower bracket cooperate up and down to form upper and lower limits for the axial segments on both sides of the moving portion, and the upper bracket and / or the lower bracket are provided with guide portions on both sides, and the axial segments on both sides of the moving portion are guided and cooperated with the corresponding guide portions on both sides.

[0011] In some embodiments, an operating portion is further included, and the operating portion cooperates with the lower end of the lever. The user indirectly drives the lower end of the lever to move by using the operating portion.

[0012] In some embodiments, the operating portion is disposed on the front side of the trigger of the handle, and the space between the operating portion and the trigger accommodates the operating finger of the user.

[0013] In some embodiments, the operating portion includes a pull ring disposed near one side of the trigger, and the pull ring is used for the user's operating finger to pull the operating portion.

[0014] In some embodiments, the movable part includes a rectangular frame consisting of a front lateral section, a left axial section, a right axial section, and a rear lateral section. The front lateral section is provided with a first mating surface, and the inverted hook is provided with a second mating surface. The first mating surface and the second mating surface can be matched / uncorped up and down.

[0015] In some embodiments, it also includes a first elastic member, which is connected to the moving part. The front lateral section is also provided with a guide slope. When the dust cylinder is reset and drives the inverted hook to move together, the inverted hook automatically pushes open the front lateral section under the guidance of the guide slope. When it reaches the recovery position, the front lateral section is reset under the action of the first elastic member because there is no obstruction of the inverted hook, thereby automatically completing the upper and lower matching of the first mating surface and the second mating surface.

[0016] In some embodiments, the lever is provided with a connecting hole, and the front transverse section is provided with a corresponding connecting portion, which is rotatably inserted into the connecting hole, and the upper side of the connecting hole serves as a limiting portion, which provides downward limiting for the front transverse section.

[0017] In some embodiments, there are two connecting holes, a vertical protrusion is arranged between the two connecting holes, and there are also two connecting parts, a vertical groove is arranged between the two connecting parts, and the vertical groove cooperates with the vertical protrusion for guidance.

[0018] In some embodiments, a third mating surface is provided on the rear side of the connecting portion of the front lateral section, and the lower side surface of the limiting portion serves as a fourth mating surface, and the third mating surface and the fourth mating surface are mated up and down.

[0019] In some embodiments, in the restored position, the third mating surface and the fourth mating surface are fitted together up and down, and when the lever swings to drive the moving part to move, the upper end of the lever rotates relative to the front lateral section to cause the third mating surface and the fourth mating surface to move relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a three-dimensional schematic diagram of a main body of a handheld vacuum cleaner that opens a dust cylinder by moving up and down.

[0021] Figure 2 The present invention is a three-dimensional schematic diagram of a handle support structure scheme for a handheld vacuum cleaner that opens a dust cylinder by moving up and down.

[0022] Figure 3 A three-dimensional schematic diagram of a handheld vacuum cleaner that opens the dust cylinder by moving up and down.

[0023] Figure 4 for Figure 3A three-dimensional schematic diagram of the base after removing the shell.

[0024] Figure 5 for Figure 4 A three-dimensional schematic diagram after further removing the moving part.

[0025] Figure 6 It is a three-dimensional schematic diagram of an upper bracket and a lower bracket in a separated state.

[0026] Figure 7 It is a three-dimensional schematic diagram of a transmission structure consisting of a moving part, a lever, and an operating part.

[0027] Figure 8 It is a three-dimensional schematic diagram from the rear side after the moving part and the lever are matched.

[0028] Fig. 9 It is a three-dimensional schematic diagram of a moving part from an upper side perspective.

[0029] Fig.10 It is a three-dimensional schematic diagram of a lever from the bottom side perspective.

[0030] Fig.11 It is a three-dimensional schematic diagram of a moving part from a bottom side perspective.

[0031] Fig.12 The utility model is a three-dimensional schematic diagram of a dust cylinder bracket.

[0032] Fig.13 It is a three-dimensional schematic diagram of a lever from an upper side perspective.

[0033] Fig.14 It is a three-dimensional schematic diagram from the front side perspective after the moving part and the lever are matched.

[0034] Description of the accompanying drawings: 1-dust cylinder, 2-handle, 3-axial support portion, 4-air outlet, 5-cover, 6-plug interface, 7-docking outlet, 8-docking inlet, 9-first locking portion, 10-second locking portion, 11-moving portion, 12-lever, 13-upper bracket, 14-lower bracket, 15-guide portion, 16-operating portion, 17-trigger, 18-pull ring, 19-front lateral section, 20-left axial section, 21-right axial section, 22- Rear transverse section, 23-first mating surface, 24-second mating surface, 25-first elastic member, 26-guide inclined surface, 27-connecting hole, 28-connecting part, 29-limiting part, 30-vertical protrusion, 31-vertical groove, 32-third mating surface, 33-fourth mating surface, 34-dust cylinder bracket, 35-one-way valve plate, 36-rotating shaft, 37-battery part, 38-second elastic member, 39-upper limit rib, 40-rotating shaft, 41-rear side surface. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0037] like Figures 1 to 14 As shown, the present disclosure provides a handheld vacuum cleaner that can open a dust bin by moving up and down, comprising a dust bin 1, a handle 2 and an axial support portion 3 axially arranged on the upper side of the handle 2. The dust bin 1 is connected to the upper side of the axial support portion 3 and can move up and down. When the dust bin 1 moves upward, the cover 5 located at the front end of the dust bin 1 is released from the limit and can be opened. When the dust bin 1 moves downward, the dust bin 1 and the axial support portion 3 resume to match, and the front end of the axial support portion 3 is provided with an insertion port 6, which serves as a suction port and / or a plug-in cleaning accessory. A flow channel is provided in the axial support portion 3, and the flow channel is provided with a docking outlet 7 on the upper side of the axial support portion 3, and the dust bin 1 is provided with a corresponding docking inlet 8. After the dust bin 1 and the axial support portion 3 resume to match, the docking outlet 7 is sealed and docked with the docking inlet 8. It also includes a first locking part 9 and a second locking part 10 that cooperate with each other to lock the dust cylinder 1 in the recovery position. The first locking part 9 is provided with a barb and moves up and down with the dust cylinder 1. The axial support part 3 is provided with a moving part 11 that can reciprocate along the axial direction as the second locking part 10. The moving part 11 adopts a frame structure. The moving part 11 and the barb can cooperate up and down to limit the barb. The moving part 11 is also connected to a lever 12. The lower end of the lever 12 is provided for user operation. The upper end of the lever 12 cooperates with the moving part 11. When the user pushes the lower end of the lever 12 to move, the upper end of the lever 12 synchronously drives the moving part 11 to move axially. The moving part 11 moves axially to clear the barb to release the lock between the first locking part 9 and the second locking part 10. Cleaning accessories such as flat straws, extension tubes, bristle straws, etc.

[0038] For compact structure, Figure 1As shown, it also includes a dust bin bracket 34, in which an electric fan and an air outlet 4 are arranged. The electric fan generates suction and discharges it from the air outlet 4. The dust bin bracket 34 is detachably connected to the dust bin 1 to form a complete machine, which can be connected to the upper side of the axial support part 3 so as to move up and down.

[0039] In order to realize wireless operation, a battery unit 37 is provided at the lower side of the handle 2 . The battery unit 37 contains a rechargeable battery. The present invention is powered by the battery unit 37 .

[0040] The vertically movable connection to the upper side of the axial support portion 3 refers to a swinging vertical movement or an overall vertical movement.

[0041] The swinging up and down movement means that the rear end of the whole machine is rotationally connected to the rear end of the axial support part 3 via the rotating shaft 36. When the lock between the first locking part 9 and the second locking part 10 is released, the whole machine swings upward around the rotating shaft 36, and the cover 5 located at the front end of the dust cylinder 1 is released from the limit and can be opened.

[0042] Overall up and down motion means that the entire machine moves up and down together, rather than swinging.

[0043] like Figure 1 As shown, in order to reduce dust leakage when the docking outlet 7 and the docking inlet 8 are separated from each other, a one-way valve plate 35 is also provided at the docking inlet 8. The one-way valve plate 35 can be opened inwardly. When the electric blower stops, the one-way valve plate 35 blocks the docking inlet 8 to reduce dust leakage.

[0044] In some embodiments, Figure 4 , 5 As shown in Figures 6, the axial support portion 3 includes an upper bracket 13 and a lower bracket 14, which cooperate with each other to form upper and lower limit positions for the axial segments on both sides of the movable portion 11, and the upper bracket 13 and / or the lower bracket 14 are provided with guide portions 15 on both sides, and the axial segments on both sides of the movable portion 11 are guided and cooperated with the corresponding guide portions 15 on both sides. After such design, on the one hand, the upper bracket 13 and the lower bracket 14 cooperate up and down to form upper and lower limit positions for the axial sections on both sides of the movable part 11, and the upper bracket 13 and / or the lower bracket 14 are provided with guide parts 15 on both sides, and the axial sections on both sides of the movable part 11 cooperate with the corresponding guide parts 15 on both sides. Therefore, it is beneficial to provide a stable foundation for the movable part 11, and frequent use in daily use of the present invention is not likely to cause the movement stability of the movable part 11 to be reduced, which is beneficial to the reliable cooperation between the axial support part 3 and the dust cylinder 1, and is beneficial to improving the sealing and docking performance of the docking outlet 7 and the docking inlet 8; on the other hand, when the movable part 11 adopts a frame structure, the axial support part 3 includes an upper bracket 13 and a lower bracket 14, and the upper bracket 13 and the lower bracket 14 cooperate up and down to form an assembly structure for the movable part 11, which is beneficial to convenient production and stable quality.

[0045] In this example, on the axial moving paths of the left axial section 20 and the right axial section 21, the upper bracket 13 is provided with an upper limit rib 39, and the lower bracket 14 is provided with a guide groove, and the upper limit rib 39 and the guide groove together constitute the axial guide and upper and lower support for the left axial section 20 and the right axial section 21. This facilitates assembly while also achieving good limit and guide.

[0046] In some embodiments, Figure 3 , 4 As shown in , 5 and 7, it also includes an operating portion 16, which cooperates with the lower end of the lever 12. The user indirectly drives the lower end of the lever 12 to move by using the operating portion 16. This makes it convenient for users to operate.

[0047] The working principle of the operating part 16 is that the user drives the operating part 16 to move, and the movement of the operating part 16 drives the lower end of the lever 12 to move, and the upper end of the lever 12 simultaneously drives the moving part 11 to move axially, and the moving part 11 moves axially to make way for the inverted hook to release the lock between the first locking part 9 and the second locking part 10.

[0048] In order to enable the operating portion 16 to automatically return to its original position after being operated, a second elastic member 38 is further included.

[0049] In some embodiments, Figure 3 , 4 As shown in FIG. 5 , the operating portion 16 is arranged on the front side of the trigger 17 of the handle 2 , and the space between the operating portion 16 and the trigger 17 accommodates the operating finger of the user. This makes it more convenient for the user to operate.

[0050] Furthermore, the operating portion 16 includes a pull ring 18 disposed near one side of the trigger 17, and the pull ring 18 is provided for the user's operating finger to pull the operating portion 16. In this way, the user can operate more comfortably and easily.

[0051] In some embodiments, Figure 8 , 9 As shown in , 11, and 14, the moving part 11 includes a rectangular frame consisting of a front transverse section 19, a left axial section 20, a right axial section 21, and a rear transverse section 22. The front transverse section 19 is provided with a first mating surface 23, and the barb is provided with a second mating surface 24. The first mating surface 23 and the second mating surface 24 can be mated / unmated up and down. With this design, in the restored position, a stable support can be formed for the barb, and the sealing docking is not easily affected by factors such as shaking and vibration during use.

[0052] In some embodiments, Figure 8 , 14As shown, the first elastic member 25 is also included, and the first elastic member 25 is connected to the moving part 11. The front transverse section 19 is also provided with a guiding inclined surface 26. When the dust cylinder 1 is reset and drives the barb to move together, the barb automatically pushes the front transverse section 19 under the guidance of the guiding inclined surface 26. When it reaches the recovery position, the front transverse section 19 is reset under the action of the first elastic member 25 because there is no barb to block it, so that the first matching surface 23 and the second matching surface 24 are automatically matched up and down. In this way, the structure of automatically completing the matching of the first matching surface 23 and the second matching surface 24 up and down is also realized, which is conducive to structural simplification and compactness.

[0053] In some embodiments, Figure 8 , 9 As shown in FIGS. 10, 11, 13 and 14, the lever 12 is provided with a connecting hole 27, and the front transverse section 19 is provided with a corresponding connecting portion 28, which is rotatably inserted into the connecting hole 27, and the upper side of the connecting hole 27 serves as a limiting portion 29, which provides a downward limit for the front transverse section 19. With this design, on the one hand, it is more conducive to forming a stable support for the undercut, and it is not easy to affect the sealing connection due to factors such as shaking and vibration during use; on the other hand, the front transverse section 19 and the lever 12 are reliably connected, and the structure is compact.

[0054] In some embodiments, Figure 8 , 9 As shown in FIGS. 10, 11, 13 and 14, there are two connecting holes 27, a vertical protrusion 30 is arranged between the two connecting holes 27, and there are two connecting parts 28, a vertical groove 31 is arranged between the two connecting parts 28, and the vertical groove 31 is guided and matched with the vertical protrusion 30. After such a design, the vertical groove 31 can guide the vertical protrusion 30 up and down, which is beneficial to the stability of the relative rotation between the front side transverse section 19 and the lever 12, and it is not easy to shake.

[0055] In some embodiments, Fig. 9 , 10 As shown, the front transverse section 19 is provided with a third mating surface 32 at the rear side of the connecting portion 28, and the lower side of the limiting portion 29 is used as a fourth mating surface 33, and the third mating surface 32 and the fourth mating surface 33 are matched up and down. This design has a compact structure and good limiting performance.

[0056] In particular, in the recovery position, the third mating surface 32 and the fourth mating surface 33 are matched with each other up and down. When the lever 12 swings to drive the moving part 11 to move, the upper end of the lever 12 rotates relative to the front transverse section 19 to cause the third mating surface 32 and the fourth mating surface 33 to move relative to each other. With such a design, the lever 12 itself and / or the force of the first elastic member 25 in the downward direction through the lever 12 provide an additional downward limiting support to the front transverse section 19, thereby further facilitating a stable support for the undercut, and not easily affecting the sealing connection due to shaking, vibration and other factors during use. When the rotating shaft 40 of the lever 12 is located directly below the third mating surface 32 and the fourth mating surface 33, the lever 12 itself can provide an additional support when it is in the recovery position. If the rotating shaft 40 of the lever 12 deviates from the position directly below the third mating surface 32 and the fourth mating surface 33, due to the force of the first elastic member 25 pushing back, the lever 12 is also affected by this force and provides a component force in the downward direction, which serves as additional support.

[0057] When the upper end of the lever 12 rotates relative to the front transverse section 19, the upper end of the lever 12 moves the movable portion 11 by pushing the rear side surface 41 of the connecting portion 28, and the first elastic member 25 is compressed, thereby releasing the lock between the first locking portion 9 and the second locking portion 10.

[0058] When understanding the present disclosure, if necessary, the above structure can refer to other embodiments / appendices. Figure 1 And understand, no further elaboration here.

[0059] The above description is only an illustrative embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the patent protection scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A handheld vacuum cleaner for opening a dust bin by moving up and down, comprising a dust bin (1), a handle (2) and an axial support portion (3) axially arranged on the upper side of the handle (2); the dust bin (1) is connected to the upper side of the axial support portion (3) so as to be movable up and down; when the dust bin (1) moves upward, the cover (5) located at the front end of the dust bin (1) is released from the limit and can be opened; when the dust bin (1) moves downward, the dust bin (1) and the axial support portion (3) are restored to fit; a plug-in interface (6) is provided at the front end of the axial support portion (3); the plug-in interface (6) serves as a suction port and / or a plug-in cleaning accessory; a flow channel is provided in the axial support portion (3); a docking outlet (7) is provided on the upper side of the axial support portion (3); and the dust bin (1) is provided with a corresponding docking inlet (8); after the dust bin (1) and the axial support portion (3) are restored to fit, the docking outlet (7) and the docking inlet (8) are sealed and docked; It is characterized in that The invention also comprises a first locking part (9) and a second locking part (10) which cooperate with each other to lock the dust can (1) in a recovery position. The first locking part (9) is provided with a barb and moves up and down with the dust can (1). The axial support part (3) is provided with a moving part (11) which can reciprocate in the axial direction and serves as the second locking part (10). The moving part (11) adopts a frame structure. The moving part (11) and the barb can cooperate up and down to limit the barb. The moving part (11) is also connected to a lever (12). The lower end of the lever (12) is provided for user operation. The upper end of the lever (12) cooperates with the moving part (11). When the user pushes the lower end of the lever (12) to move, the upper end of the lever (12) synchronously drives the moving part (11) to move axially. The moving part (11) moves axially to clear the barb to release the lock between the first locking part (9) and the second locking part (10).

2. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 1, It is characterized in that The axial support portion (3) comprises an upper bracket (13) and a lower bracket (14), the upper bracket (13) and the lower bracket (14) cooperate with each other to form upper and lower limit positions for the axial sections on both sides of the movable portion (11), and the upper bracket (13) and / or the lower bracket (14) are provided with guide portions (15) on both sides, and the axial sections on both sides of the movable portion (11) cooperate with the corresponding guide portions (15) on both sides.

3. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 1, It is characterized in that It also includes an operating portion (16), which cooperates with the lower end of the lever (12), and a user indirectly drives the lower end of the lever (12) to move by using the operating portion (16).

4. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 3, It is characterized in that The operating portion (16) is arranged on the front side of the trigger (17) of the handle (2), and the space between the operating portion (16) and the trigger (17) accommodates the operating finger of the user.

5. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 4, It is characterized in that The operating portion (16) comprises a pull ring (18) arranged near one side of the trigger (17), and the pull ring (18) is used for the user's operating finger to pull the operating portion (16).

6. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 1, It is characterized in that The movable part (11) comprises a rectangular frame consisting of a front transverse section (19), a left axial section (20), a right axial section (21), and a rear transverse section (22); the front transverse section (19) is provided with a first mating surface (23), and the inverted hook is provided with a second mating surface (24); the first mating surface (23) and the second mating surface (24) can be mated / released up and down.

7. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 6, It is characterized in that The utility model also comprises a first elastic member (25) connected to the movable part (11). The front transverse section (19) is also provided with a guiding inclined surface (26). When the dust cylinder (1) is reset and drives the hook to move together, the hook automatically pushes the front transverse section (19) under the guidance of the guiding inclined surface (26). When the dust cylinder (1) reaches the recovery position, the front transverse section (19) is reset under the action of the first elastic member (25) because there is no obstruction of the hook, thereby automatically completing the upper and lower matching of the first matching surface (23) and the second matching surface (24).

8. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 6, It is characterized in that The lever (12) is provided with a connecting hole (27), and the front transverse section (19) is provided with a corresponding connecting portion (28). The connecting portion (28) is rotatably inserted into the connecting hole (27), and the upper side of the connecting hole (27) serves as a limiting portion (29), which provides downward limiting for the front transverse section (19).

9. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 8, It is characterized in that There are two connecting holes (27), a vertical protrusion (30) is arranged between the two connecting holes (27), there are also two connecting parts (28), a vertical groove (31) is arranged between the two connecting parts (28), and the vertical groove (31) is guided and matched with the vertical protrusion (30).

10. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 8, It is characterized in that The front transverse section (19) is provided with a third matching surface (32) at the rear side of the connecting portion (28), the lower side surface of the limiting portion (29) serves as a fourth matching surface (33), and the third matching surface (32) matches the fourth matching surface (33) up and down.

11. The handheld vacuum cleaner for opening the dust cylinder by moving up and down as claimed in claim 10, It is characterized in that In the restored position, the third mating surface (32) and the fourth mating surface (33) are fitted together vertically, and when the lever (12) swings to drive the moving part (11) to move, the upper end of the lever (12) rotates relative to the front transverse section (19), causing the third mating surface (32) and the fourth mating surface (33) to move relative to each other.

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