Vacuum cleaner and its pipe connection assembly

Abstract

The present invention discloses a vacuum cleaner and a pipe connecting assembly thereof, which belongs to the technical field of cleaning equipment, and solves the technical problem in the prior art that it is inconvenient for a user to hold or lift a vacuum cleaner body and a vacuum cleaner head when the vacuum cleaner body and the vacuum cleaner head are bent to be stored. The vacuum cleaner in this case comprises a handheld vacuum cleaner main body, a suction head and a pipe connecting assembly connected therebetween, the pipe connecting assembly comprising a first connecting pipe, a second connecting pipe and an arc-shaped combined pipe, the arc-shaped combined pipe comprising a plurality of hard arc-shaped short pipes connected in sequence, and in this case, by arranging the pipe connecting assembly, when the vacuum cleaner is stored, at least a portion of the arc-shaped combined pipe forms an arc-shaped handle for the user to hold, so that when the user bends the handheld vacuum cleaner main body and the suction head to store the vacuum cleaner, the user can still lift or hold the vacuum cleaner through the arc-shaped handle formed by the pipe connecting assembly, thereby facilitating the storage of the vacuum cleaner.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a vacuum cleaner and a pipe connecting assembly for connecting a vacuum cleaner mainframe and a suction head. Background Art

[0002] The Chinese invention patent application with publication number CN107969989A discloses a "vacuum cleaning device with a foldable rod to provide a storage structure", which includes a rod having a first end connected to a vacuum unit and a second end connected to a vacuum head or a surface cleaning head. The rod defines an airway for allowing air to pass through the surface cleaning head to reach the vacuum unit and includes a flexible airway along at least a portion of the rod. The rod also includes a plurality of sections that are pivotally connected together so that the rod can be folded about 180° in a forward direction until the vacuum unit is positioned adjacent to the top of the surface cleaning head, thereby providing a storage structure. However, the above-mentioned structure makes it inconvenient for the user to hold or lift the vacuum cleaner when the vacuum unit and the surface cleaning head are bent to 180°, because the handle portion is on one side of the vacuum unit, so as to store the vacuum cleaner. Summary of the invention

[0003] In order to solve the above technical problems, an object of the present invention is to provide a tube connection assembly that is convenient for a user to hold or lift, and a vacuum cleaner using the tube connection assembly.

[0004] In order to achieve the purpose of the above invention, the present invention adopts the following first technical solution:

[0005] A pipe connection assembly, the pipe connection assembly comprising:

[0006] a first connecting pipe;

[0007] a second connecting pipe, the second connecting pipe being capable of rotating relative to the first connecting pipe about a rotation axis, the rotation angle of the second connecting pipe about the rotation axis being greater than or equal to 130°, the pipe connecting assembly having a first working state in which the first connecting pipe and the second connecting pipe are far from each other and a second working state in which the first connecting pipe and the second connecting pipe are close to each other;

[0008] An arc-shaped combined pipe is arranged between the first connecting pipe and the second connecting pipe, the arc-shaped combined pipe comprises a plurality of rigid arc-shaped short pipes connected in sequence, the arc-shaped combined pipe has a first end and a second end, the first end is fixedly arranged with the first connecting pipe, and the second end is fixedly arranged with the second connecting pipe, and the first connecting pipe, the arc-shaped combined pipe and the second connecting pipe are always in fluid communication;

[0009] Wherein, when the tube connection assembly is in the second working state, the first connecting tube and the second connecting tube are located on one side of the arc-shaped combined tube, and the arc-shaped combined tube is arched away from the first connecting tube and the second connecting tube to form an arc-shaped handle for the user to hold.

[0010] In the above technical solution, preferably, the plurality of arc-shaped short tubes are distributed on the same circle, the center of the circle falls on the rotation axis, and one of the two adjacent arc-shaped short tubes can rotate relative to the other arc-shaped short tube around the rotation axis and during the rotation, one arc-shaped short tube can slide in and out of the other arc-shaped short tube.

[0011] In the above technical solution, preferably, the arc-shaped combined tube includes a first arc-shaped short tube, a second arc-shaped short tube and a third arc-shaped short tube which are sequentially sleeved, the first arc-shaped short tube is fixedly arranged with the first connecting tube, and the third arc-shaped short tube is fixedly arranged with the second connecting tube.

[0012] In the above technical solution, preferably, the first connecting tube and the first arc-shaped short tube are formed integrally.

[0013] In the above technical solution, preferably, the second connecting tube and the third arc-shaped short tube are formed integrally.

[0014] In the above technical solution, preferably, the pipe connecting assembly includes a first hinge fixedly arranged with the first connecting pipe and a second hinge fixedly arranged with the second connecting pipe, the first hinge and the second hinge are hingedly connected by a hinge shaft, and the axis centerline of the hinge shaft coincides with the axis centerline of the rotation axis.

[0015] In the above technical solution, preferably, when the tube connection assembly is in the second working state, a holding space for a user to hold with four fingers other than the thumb is formed between the arc-shaped combined tube and the first and second hinged parts.

[0016] In the above technical solution, preferably, the pipe connection assembly includes a first locking mechanism for locking the pipe connection assembly in the first working state.

[0017] In the above technical solution, preferably, the pipe connection assembly includes a second locking mechanism for locking the pipe connection assembly in the second working state.

[0018] In order to achieve the purpose of the above invention, the present invention adopts the following second technical solution:

[0019] A vacuum cleaner comprising:

[0020] Handheld vacuum cleaner host;

[0021] A suction head for moving on the ground;

[0022] A support tube for connecting the suction head with the handheld vacuum cleaner main unit, the support tube comprising a tube connection assembly as described in the first technical solution and any one of the preferred solutions thereof, the first connection tube being connected to the suction head, and the second connection tube being connected to the handheld vacuum cleaner main unit;

[0023] Wherein, the vacuum cleaner has a storage position; when the vacuum cleaner is located at the storage position, the tube connection assembly is in the second working state, the second connecting tube and the handheld vacuum cleaner main unit are located at the lower side of the arc-shaped combination tube, and the arc-shaped combination tube is arched upward.

[0024] In the above technical solution, preferably, when the vacuum cleaner is located at the storage position, the handheld vacuum cleaner main unit is located directly above the suction head.

[0025] Compared with the prior art, the present invention achieves the following beneficial effects: by providing a tube connection assembly, when a cleaning device such as a vacuum cleaner is stored, at least a portion of the arc-shaped combination tube forms an arc-shaped handle for the user to hold, so that when the user bends the vacuum cleaner body and the suction head to store the vacuum cleaner, the user can still lift or hold the vacuum cleaner through the arc-shaped handle formed by the tube connection assembly, thereby facilitating the storage of the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1 is a schematic structural diagram of the vacuum cleaner of the present invention in an unfolded position;

[0027] Attached Figure 2 It is a structural schematic diagram of the vacuum cleaner of the present invention in the storage position;

[0028] Attached Figure 3 is a schematic structural diagram of the vacuum cleaner of the present invention in a third position;

[0029] Wherein: 100, vacuum cleaner; 1, handheld vacuum cleaner host; 2, suction head; 3, tube connection assembly; 31, first connecting tube; 32, second connecting tube; 33, arc-shaped combination tube; 331, first arc-shaped short tube; 332, second arc-shaped short tube; 333, third arc-shaped short tube; 334, rotation axis; 34, first hinge; 35, second hinge; 36, hinge shaft; 4, first locking mechanism; 41, first locking member; 42, second locking member; 5, second locking mechanism; 51, third locking member; 52, fourth locking member. DETAILED DESCRIPTION

[0030] In order to explain the technical content, structural features, objectives and effects of the invention in detail, the following will be described in detail with reference to the embodiments and accompanying drawings. In addition to being applied to vacuum cleaners, the pipe connection assembly described in the present invention can also be applied to other cleaning equipment, such as floor scrubbers.

[0031] According to the attached Figure 1 ~Attached Figure 3 As shown, the vacuum cleaner 100 includes a handheld vacuum cleaner main body 1, a suction head 2 for moving on the ground, a support pipe for connecting the vacuum cleaner main body 1 and the suction head 2, a first locking mechanism 4 and a second locking mechanism 5.

[0032] The support tube includes a tube connection assembly 3, which includes a first connection tube 31, a second connection tube 32 and an arc-shaped combined tube 33. The suction head 2 is connected to the first connection tube 31, and the handheld vacuum cleaner main unit 1 is connected to the second connection tube 32. In this example, the first and second connection tubes are both hard tubes.

[0033] The arc-shaped combined pipe 33 is arranged between the first and second connecting pipes. The arc-shaped combined pipe 33 has a first end and a second end that are arranged oppositely. The first end is fixedly arranged with the first connecting pipe 31, and the second end is fixedly arranged with the second connecting pipe 32. The first connecting pipe 31, the arc-shaped combined pipe 33 and the second connecting pipe 32 are always in fluid communication. The arc-shaped combined pipe 33 includes a first arc-shaped short pipe 331, a second arc-shaped short pipe 332 and a third arc-shaped short pipe 333 that are sequentially sleeved. In addition, the first, second and third arc-shaped short pipes are all hard pipes. In this example, the first arc-shaped short pipe 331 is formed integrally with the first connecting pipe 31, and the third arc-shaped short pipe 333 is formed integrally with the second connecting pipe 32. In other embodiments, the first arc-shaped short pipe 331 can be fixedly arranged with the first connecting pipe 31, and the third arc-shaped short pipe 333 can be fixed with the second connecting pipe 32. That is, the two arc-shaped short pipes are respectively fixedly connected with the first and second connecting pipes through external connecting components, such as pipe joints.

[0034] In addition, in other embodiments, the arc-shaped combination tube 3 described above may include a plurality of rigid arc-shaped short tubes connected in sequence, and the plurality of arc-shaped short tubes are distributed on the same circumference, the center of the circle falls on the rotation axis 334, and one of the two adjacent arc-shaped short tubes connected can rotate relative to the other arc-shaped short tube around the rotation axis 334 and during the rotation, one arc-shaped short tube can slide in and out of the other arc-shaped short tube.

[0035] In this example, the second connecting tube 32 can rotate relative to the first connecting tube 31 around a rotation axis 334, and the rotation angle of the second connecting tube 32 around the rotation axis 334 is greater than or equal to 130°. In addition, based on the structural considerations of three or more arc-shaped tubes, since the middle section or sections of the arc-shaped short tubes have no external force support, the first connecting tube 31 is fixedly provided with a first hinge 34, the second connecting tube 32 is fixedly provided with a second hinge 35, and the first and second hinges are hinged via a hinge shaft 36, the axis of which coincides with the above-mentioned rotation axis 334.

[0036] The pipe connection assembly 3 has a first working state in which the first and second connection pipes are separated from each other and a second working state in which the first and second connection pipes are close to each other. When the pipe connection assembly 3 is in the first working state, that is, the arc-shaped combined pipe 33 is folded, the first locking mechanism 4 locks the pipe connection assembly 3 in the first state.

[0037] The first locking mechanism 4 includes a first locking member 41 disposed on the first arc-shaped tube 331 and a second locking member 42 disposed near the third arc-shaped tube 333 and matched with the first locking member 41. In this example, the first locking member 41 is a locking groove, and the second locking member 42 is a locking hook. In other embodiments, the structures of the first and second locking members are not limited to the matching mode of the locking hook and the locking groove described above.

[0038] When the pipe connection assembly 3 is in the second working state, that is, the arc-shaped combined pipe 33 is unfolded, the second locking mechanism 5 locks the pipe connection assembly in the second state. The first connecting pipe 31 and the second connecting pipe 32 are located on the same side of the arc-shaped combined pipe 33, and the arc-shaped combined pipe 33 is arched away from the first connecting pipe 31 and the second connecting pipe 32 to form an arc-shaped handle for the user to hold. A holding space for the user's other four fingers to hold except the thumb is formed between the arc-shaped combined pipe 33 and the first and second hinged parts.

[0039] The second locking mechanism 5 includes a third locking member 51 disposed on the first hinge 34 and a fourth locking member 52 disposed on the second hinge 35 and matched with the third locking member 51. In this example, the third locking member 51 is a lock hole, and the fourth locking member 52 is a lock buckle. In other embodiments, the third locking member 51 can be disposed on the first connecting tube 31, and the fourth locking member 52 can be disposed on the second connecting tube 32, and the structures of the third and fourth locking members are not limited to the above-mentioned matching mode of the lock hole and the lock buckle, nor are they limited to being disposed on the first and second hinges.

[0040] The vacuum cleaner 100 has an extended position, a stowed position, and a third position between the extended position and the stowed position. Figure 1 ~Attached Figure 3 Describe these three working positions in detail.

[0041] When the vacuum cleaner 100 is in the deployed position, Figure 1 As shown, the first and second connecting pipes are far apart and are distributed on both sides of the arc-shaped combined pipe 33, that is, the first and second connecting pipes are far apart and are distributed on both sides of the arc-shaped combined pipe 33. Figure 1 The pipe connection assembly 3 is shown in the first working state.

[0042] When the vacuum cleaner 100 is in the storage position, Figure 2 As shown, the first and second connecting pipes are close to each other and are distributed on the same side of the arc-shaped combined pipe 33, that is, the first and second connecting pipes are close to each other and are distributed on the same side of the arc-shaped combined pipe 33. Figure 2 In the second working state of the tube connection assembly 3 shown, the second connection tube 32 and the handheld vacuum cleaner main unit 1 are both located at the lower side of the arc-shaped combination tube 33 , the arc-shaped combination tube 33 is arched upward, and the handheld vacuum cleaner main unit 1 is located directly above the suction head 2 .

[0043] When the vacuum cleaner is in the third position, Figure 3 As shown, the second connecting tube 32 rotates about the rotation axis 334 by about 90°, and the first and second connecting tubes are substantially perpendicular to each other.

[0044] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum cleaner comprising: Handheld vacuum cleaner host (1); A suction head (2) for moving on the ground; A support tube for connecting the suction head (2) and the handheld vacuum cleaner main unit (1), the support tube comprising a tube connection assembly (3), characterized in that the tube connection assembly comprises: A first connecting tube (31), the first connecting tube (31) being connected to the suction head (2); a second connecting tube (32), the second connecting tube (32) being connected to the handheld vacuum cleaner main unit (1) and being rotatable relative to the first connecting tube (31) about a rotation axis (334), the rotation angle of the second connecting tube (32) about the rotation axis (334) being greater than or equal to 130°, the tube connecting assembly having a first working state in which the first connecting tube (31) and the second connecting tube (32) are separated from each other, and a second working state in which the first connecting tube (31) and the second connecting tube (32) are close to each other; A first hinged member (34) fixedly disposed on the first connecting tube (31); A second hinged member (35) is fixedly arranged with the second connecting tube (32); the first hinged member (34) and the second hinged member (35) are hingedly connected via a hinge shaft (36); the axis of the hinge shaft (36) coincides with the rotation axis (334); The arc-shaped combined tube (33) is arranged between the first connecting tube (31) and the second connecting tube (32), the arc-shaped combined tube (33) comprising a plurality of rigid arc-shaped short tubes connected in sequence, the arc-shaped combined tube (33) comprising a first end portion and a second end portion, the first end portion being fixedly arranged with the first connecting tube (31), and the second end portion being fixedly arranged with the second connecting tube (32), the first connecting tube (31), the arc-shaped combined tube (33) and the second connecting tube (32) being always in fluid communication with each other; the arc-shaped combined tube (33) comprising a first arc-shaped short tube (331), a second arc-shaped short tube (332) and a third arc-shaped short tube (331) which are connected in sequence short tubes (333), wherein the first arc-shaped short tube (331) is fixedly arranged with the first connecting tube (31), and the third arc-shaped short tube (333) is fixedly arranged with the second connecting tube (32); the first arc-shaped short tube (331), the second arc-shaped short tube (332) and the third arc-shaped short tube (333) are distributed on the same circumference, the center of the circumference falls on the rotation axis (334), and one of the two adjacent arc-shaped short tubes can rotate relative to the other arc-shaped short tube around the rotation axis (334), and during the rotation process, one arc-shaped short tube can slide in and out of the other arc-shaped short tube; A first locking mechanism (4) is configured to lock the pipe connection assembly (3) in the first working state; and A second locking mechanism (5) is configured to lock the pipe connection assembly (3) in the second working state; Wherein, when the tube connection assembly is in a first working state, the first connection tube (31) and the second connection tube (32) are separated from each other and are located on both sides of the arc-shaped combined tube (33), and the first locking mechanism (4) locks the tube connection assembly (3) in the first state; when the tube connection assembly is in a second working state, the first connection tube (31) and the second connection tube (32) are located on one side of the arc-shaped combined tube (33), and the arc-shaped combined tube (33) is arched in a direction away from the first connection tube (31) and the second connection tube (32) to form an arc-shaped handle for a user to hold, and a holding space for a user to hold with four fingers other than a thumb is formed between the arc-shaped combined tube (33), the first hinge (34) and the second hinge (35); The vacuum cleaner has an unfolded position, a stowed position, and a third position between the unfolded position and the stowed position; when the vacuum cleaner is in the unfolded position, the tube connection assembly is in the first working state; when the vacuum cleaner is in the stowed position, the tube connection assembly (3) is in the second working state, the handheld vacuum cleaner main unit (1) is located directly above the suction head (2), the second connection pipe (32) and the handheld vacuum cleaner main unit (1) are located at the lower side of the arc-shaped combined pipe (33), and the arc-shaped combined pipe (33) is arched upward; when the vacuum cleaner is in the third position, the first connection pipe (31) and the second connection pipe (32) are substantially perpendicular to each other.

2. The vacuum cleaner according to claim 1, characterized in that: The first connecting tube (31) and the first arc-shaped short tube (331) are formed integrally.

3. The vacuum cleaner according to claim 1, characterized in that: The second connecting tube (32) and the third arc-shaped short tube (333) are formed integrally.

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